diff --git a/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads b/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads new file mode 100644 index 0000000..b0b0eeb --- /dev/null +++ b/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads @@ -0,0 +1,5 @@ +What: /proc/sys/vm/nr_pdflush_threads +Date: June 2012 +Contact: Wanpeng Li +Description: Since pdflush is replaced by per-BDI flusher, the interface of old pdflush + exported in /proc/sys/vm/ should be removed. diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd index bcd88eb..3c17b62 100644 --- a/Documentation/ABI/testing/sysfs-bus-rbd +++ b/Documentation/ABI/testing/sysfs-bus-rbd @@ -35,8 +35,14 @@ name pool - The pool where this rbd image resides. The pool-name pair is unique - per rados system. + The name of the storage pool where this rbd image resides. + An rbd image name is unique within its pool. + +pool_id + + The unique identifier for the rbd image's pool. This is + a permanent attribute of the pool. A pool's id will never + change. size diff --git a/Documentation/ABI/testing/sysfs-devices-platform-sh_mobile_lcdc_fb b/Documentation/ABI/testing/sysfs-devices-platform-sh_mobile_lcdc_fb new file mode 100644 index 0000000..2107082 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-platform-sh_mobile_lcdc_fb @@ -0,0 +1,44 @@ +What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_alpha +Date: May 2012 +Contact: Laurent Pinchart +Description: + This file is only available on fb[0-9] devices corresponding + to overlay planes. + + Stores the alpha blending value for the overlay. Values range + from 0 (transparent) to 255 (opaque). The value is ignored if + the mode is not set to Alpha Blending. + +What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_mode +Date: May 2012 +Contact: Laurent Pinchart +Description: + This file is only available on fb[0-9] devices corresponding + to overlay planes. + + Selects the composition mode for the overlay. Possible values + are + + 0 - Alpha Blending + 1 - ROP3 + +What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_position +Date: May 2012 +Contact: Laurent Pinchart +Description: + This file is only available on fb[0-9] devices corresponding + to overlay planes. + + Stores the x,y overlay position on the display in pixels. The + position format is `[0-9]+,[0-9]+'. + +What: /sys/devices/platform/sh_mobile_lcdc_fb.[0-3]/graphics/fb[0-9]/ovl_rop3 +Date: May 2012 +Contact: Laurent Pinchart +Description: + This file is only available on fb[0-9] devices corresponding + to overlay planes. + + Stores the raster operation (ROP3) for the overlay. Values + range from 0 to 255. The value is ignored if the mode is not + set to ROP3. diff --git a/Documentation/DocBook/media/v4l/biblio.xml b/Documentation/DocBook/media/v4l/biblio.xml index 7c49fac..1078e45 100644 --- a/Documentation/DocBook/media/v4l/biblio.xml +++ b/Documentation/DocBook/media/v4l/biblio.xml @@ -194,7 +194,7 @@ in the frequency range from 87,5 to 108,0 MHz National Radio Systems Committee (http://www.nrscstandards.org) - NTSC-4: United States RBDS Standard + NRSC-4: United States RBDS Standard diff --git a/Documentation/DocBook/media/v4l/common.xml b/Documentation/DocBook/media/v4l/common.xml index 4101aeb..b91d253 100644 --- a/Documentation/DocBook/media/v4l/common.xml +++ b/Documentation/DocBook/media/v4l/common.xml @@ -464,14 +464,14 @@ The type field of the respective tuner field contains the index number of the tuner. - Radio devices have exactly one tuner with index zero, no + Radio input devices have exactly one tuner with index zero, no video inputs. To query and change tuner properties applications use the &VIDIOC-G-TUNER; and &VIDIOC-S-TUNER; ioctl, respectively. The &v4l2-tuner; returned by VIDIOC_G_TUNER also contains signal status information applicable when the tuner of the -current video input, or a radio tuner is queried. Note that +current video or radio input is queried. Note that VIDIOC_S_TUNER does not switch the current tuner, when there is more than one at all. The tuner is solely determined by the current video input. Drivers must support both ioctls and set the @@ -491,8 +491,17 @@ the modulator. The type field of the respective &v4l2-output; returned by the &VIDIOC-ENUMOUTPUT; ioctl is set to V4L2_OUTPUT_TYPE_MODULATOR and its modulator field contains the index number -of the modulator. This specification does not define radio output -devices. +of the modulator. + + Radio output devices have exactly one modulator with index +zero, no video outputs. + + A video or radio device cannot support both a tuner and a +modulator. Two separate device nodes will have to be used for such +hardware, one that supports the tuner functionality and one that supports +the modulator functionality. The reason is a limitation with the +&VIDIOC-S-FREQUENCY; ioctl where you cannot specify whether the frequency +is for a tuner or a modulator. To query and change modulator properties applications use the &VIDIOC-G-MODULATOR; and &VIDIOC-S-MODULATOR; ioctl. Note that diff --git a/Documentation/DocBook/media/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml index ea42ef8..faa0fd1 100644 --- a/Documentation/DocBook/media/v4l/compat.xml +++ b/Documentation/DocBook/media/v4l/compat.xml @@ -2377,10 +2377,11 @@ that used it. It was originally scheduled for removal in 2.6.35. V4L2_CTRL_FLAG_VOLATILE was added to signal volatile controls to userspace. - Add selection API for extended control over cropping and -composing. Does not affect the compatibility of current drivers and -applications. See selection API for -details. + Add selection API for extended control over cropping + and composing. Does not affect the compatibility of current + drivers and applications. See selection API for + details. @@ -2458,6 +2459,36 @@ details. +
+ V4L2 in Linux 3.6 + + + Replaced input in + v4l2_buffer by + reserved2 and removed + V4L2_BUF_FLAG_INPUT. + + +
+ +
+ V4L2 in Linux 3.6 + + + Added V4L2_CAP_VIDEO_M2M and V4L2_CAP_VIDEO_M2M_MPLANE capabilities. + + +
+ +
+ V4L2 in Linux 3.6 + + + Added support for frequency band enumerations: &VIDIOC-ENUM-FREQ-BANDS;. + + +
+
Relation of V4L2 to other Linux multimedia APIs @@ -2587,6 +2618,9 @@ ioctls. V4L2_CID_AUTO_FOCUS_AREA control. + + Support for frequency band enumeration: &VIDIOC-ENUM-FREQ-BANDS; ioctl. +
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index cda0dfb..b0964fb 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -373,6 +373,11 @@ minimum value disables backlight compensation. + V4L2_CID_AUTOBRIGHTNESS + boolean + Enable Automatic Brightness. + + V4L2_CID_ROTATE integer Rotates the image by specified angle. Common angles are 90, diff --git a/Documentation/DocBook/media/v4l/dev-subdev.xml b/Documentation/DocBook/media/v4l/dev-subdev.xml index 4afcbbe..a3d9dd0 100644 --- a/Documentation/DocBook/media/v4l/dev-subdev.xml +++ b/Documentation/DocBook/media/v4l/dev-subdev.xml @@ -276,7 +276,7 @@ -
+
Selections: cropping, scaling and composition Many sub-devices support cropping frames on their input or output @@ -290,8 +290,8 @@ size. Both the coordinates and sizes are expressed in pixels. As for pad formats, drivers store try and active - rectangles for the selection targets of ACTUAL type . + rectangles for the selection targets . On sink pads, cropping is applied relative to the current pad format. The pad format represents the image size as @@ -308,7 +308,7 @@ Scaling support is optional. When supported by a subdev, the crop rectangle on the subdev's sink pad is scaled to the size configured using the &VIDIOC-SUBDEV-S-SELECTION; IOCTL - using V4L2_SUBDEV_SEL_COMPOSE_ACTUAL + using V4L2_SEL_TGT_COMPOSE selection target on the same pad. If the subdev supports scaling but not composing, the top and left values are not used and must always be set to zero. @@ -323,32 +323,32 @@ The drivers should always use the closest possible rectangle the user requests on all selection targets, unless specifically told otherwise. - V4L2_SUBDEV_SEL_FLAG_SIZE_GE and - V4L2_SUBDEV_SEL_FLAG_SIZE_LE flags may be + V4L2_SEL_FLAG_GE and + V4L2_SEL_FLAG_LE flags may be used to round the image size either up or down. + linkend="v4l2-selection-flags" />
Types of selection targets
- ACTUAL targets + Actual targets - ACTUAL targets reflect the actual hardware configuration - at any point of time. There is a BOUNDS target - corresponding to every ACTUAL. + Actual targets (without a postfix) reflect the actual + hardware configuration at any point of time. There is a BOUNDS + target corresponding to every actual target.
BOUNDS targets - BOUNDS targets is the smallest rectangle that contains - all valid ACTUAL rectangles. It may not be possible to set the - ACTUAL rectangle as large as the BOUNDS rectangle, however. - This may be because e.g. a sensor's pixel array is not - rectangular but cross-shaped or round. The maximum size may - also be smaller than the BOUNDS rectangle. + BOUNDS targets is the smallest rectangle that contains all + valid actual rectangles. It may not be possible to set the actual + rectangle as large as the BOUNDS rectangle, however. This may be + because e.g. a sensor's pixel array is not rectangular but + cross-shaped or round. The maximum size may also be smaller than the + BOUNDS rectangle.
@@ -362,7 +362,7 @@ performed by the user: the changes made will be propagated to any subsequent stages. If this behaviour is not desired, the user must set - V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG flag. This + V4L2_SEL_FLAG_KEEP_CONFIG flag. This flag causes no propagation of the changes are allowed in any circumstances. This may also cause the accessed rectangle to be adjusted by the driver, depending on the properties of the diff --git a/Documentation/DocBook/media/v4l/io.xml b/Documentation/DocBook/media/v4l/io.xml index fd6aca2..1885cc0 100644 --- a/Documentation/DocBook/media/v4l/io.xml +++ b/Documentation/DocBook/media/v4l/io.xml @@ -683,14 +683,12 @@ memory, set by the application. See for details. __u32 - input + reserved2 - Some video capture drivers support rapid and -synchronous video input changes, a function useful for example in -video surveillance applications. For this purpose applications set the -V4L2_BUF_FLAG_INPUT flag, and this field to the -number of a video input as in &v4l2-input; field -index. + A place holder for future extensions and custom +(driver defined) buffer types +V4L2_BUF_TYPE_PRIVATE and higher. Applications +should set this to 0. __u32 @@ -923,13 +921,6 @@ Drivers set or clear this flag when the VIDIOC_DQBUF ioctl is called. - V4L2_BUF_FLAG_INPUT - 0x0200 - The input field is valid. -Applications set or clear this flag before calling the -VIDIOC_QBUF ioctl. - - V4L2_BUF_FLAG_PREPARED 0x0400 The buffer has been prepared for I/O and can be queued by the diff --git a/Documentation/DocBook/media/v4l/selection-api.xml b/Documentation/DocBook/media/v4l/selection-api.xml index b299e47..e7ed507 100644 --- a/Documentation/DocBook/media/v4l/selection-api.xml +++ b/Documentation/DocBook/media/v4l/selection-api.xml @@ -53,11 +53,11 @@ cropping and composing rectangles have the same size. -For complete list of the available selection targets see table -
+ See for more + information. +
Configuration @@ -74,7 +74,7 @@ cropping/composing rectangles may have to be aligned, and both the source and the sink may have arbitrary upper and lower size limits. Therefore, as usual, drivers are expected to adjust the requested parameters and return the actual values selected. An application can control the rounding behaviour using constraint flags . +linkend="v4l2-selection-flags"> constraint flags .
@@ -91,7 +91,7 @@ top/left corner at position (0,0) . The rectangle's coordinates are expressed in pixels. The top left corner, width and height of the source rectangle, that is -the area actually sampled, is given by the V4L2_SEL_TGT_CROP_ACTIVE +the area actually sampled, is given by the V4L2_SEL_TGT_CROP target. It uses the same coordinate system as V4L2_SEL_TGT_CROP_BOUNDS . The active cropping area must lie completely inside the capture boundaries. The driver may further adjust the @@ -111,13 +111,13 @@ height are equal to the image size set by VIDIOC_S_FMT . The part of a buffer into which the image is inserted by the hardware is -controlled by the V4L2_SEL_TGT_COMPOSE_ACTIVE target. +controlled by the V4L2_SEL_TGT_COMPOSE target. The rectangle's coordinates are also expressed in the same coordinate system as the bounds rectangle. The composing rectangle must lie completely inside bounds rectangle. The driver must adjust the composing rectangle to fit to the bounding limits. Moreover, the driver can perform other adjustments according to hardware limitations. The application can control rounding behaviour using - constraint flags . + constraint flags . For capture devices the default composing rectangle is queried using V4L2_SEL_TGT_COMPOSE_DEFAULT . It is usually equal to the @@ -125,7 +125,7 @@ bounding rectangle. The part of a buffer that is modified by the hardware is given by V4L2_SEL_TGT_COMPOSE_PADDED . It contains all pixels -defined using V4L2_SEL_TGT_COMPOSE_ACTIVE plus all +defined using V4L2_SEL_TGT_COMPOSE plus all padding data modified by hardware during insertion process. All pixels outside this rectangle must not be changed by the hardware. The content of pixels that lie inside the padded area but outside active area is @@ -153,7 +153,7 @@ specified using VIDIOC_S_FMT ioctl. The top left corner, width and height of the source rectangle, that is the area from which image date are processed by the hardware, is given by the - V4L2_SEL_TGT_CROP_ACTIVE . Its coordinates are expressed + V4L2_SEL_TGT_CROP . Its coordinates are expressed in in the same coordinate system as the bounds rectangle. The active cropping area must lie completely inside the crop boundaries and the driver may further adjust the requested size and/or position according to hardware @@ -165,7 +165,7 @@ bounding rectangle. The part of a video signal or graphics display where the image is inserted by the hardware is controlled by -V4L2_SEL_TGT_COMPOSE_ACTIVE target. The rectangle's coordinates +V4L2_SEL_TGT_COMPOSE target. The rectangle's coordinates are expressed in pixels. The composing rectangle must lie completely inside the bounds rectangle. The driver must adjust the area to fit to the bounding limits. Moreover, the driver can perform other adjustments according to @@ -184,7 +184,7 @@ such a padded area is driver-dependent feature not covered by this document. Driver developers are encouraged to keep padded rectangle equal to active one. The padded target is accessed by the V4L2_SEL_TGT_COMPOSE_PADDED identifier. It must contain all pixels from the -V4L2_SEL_TGT_COMPOSE_ACTIVE target. +V4L2_SEL_TGT_COMPOSE target.
@@ -193,8 +193,8 @@ V4L2_SEL_TGT_COMPOSE_ACTIVE target. Scaling control An application can detect if scaling is performed by comparing the width -and the height of rectangles obtained using V4L2_SEL_TGT_CROP_ACTIVE - and V4L2_SEL_TGT_COMPOSE_ACTIVE targets. If +and the height of rectangles obtained using V4L2_SEL_TGT_CROP + and V4L2_SEL_TGT_COMPOSE targets. If these are not equal then the scaling is applied. The application can compute the scaling ratios using these values. @@ -252,7 +252,7 @@ area) ret = ioctl(fd, &VIDIOC-G-SELECTION;, &sel); if (ret) exit(-1); - sel.target = V4L2_SEL_TGT_CROP_ACTIVE; + sel.target = V4L2_SEL_TGT_CROP; ret = ioctl(fd, &VIDIOC-S-SELECTION;, &sel); if (ret) exit(-1); @@ -281,7 +281,7 @@ area) r.left = sel.r.width / 4; r.top = sel.r.height / 4; sel.r = r; - sel.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; + sel.target = V4L2_SEL_TGT_COMPOSE; sel.flags = V4L2_SEL_FLAG_LE; ret = ioctl(fd, &VIDIOC-S-SELECTION;, &sel); if (ret) @@ -298,11 +298,11 @@ V4L2_BUF_TYPE_VIDEO_OUTPUT for other devices &v4l2-selection; compose = { .type = V4L2_BUF_TYPE_VIDEO_OUTPUT, - .target = V4L2_SEL_TGT_COMPOSE_ACTIVE, + .target = V4L2_SEL_TGT_COMPOSE, }; &v4l2-selection; crop = { .type = V4L2_BUF_TYPE_VIDEO_OUTPUT, - .target = V4L2_SEL_TGT_CROP_ACTIVE, + .target = V4L2_SEL_TGT_CROP, }; double hscale, vscale; diff --git a/Documentation/DocBook/media/v4l/selections-common.xml b/Documentation/DocBook/media/v4l/selections-common.xml new file mode 100644 index 0000000..7502f78 --- /dev/null +++ b/Documentation/DocBook/media/v4l/selections-common.xml @@ -0,0 +1,164 @@ +
+ + Common selection definitions + + While the V4L2 selection + API and V4L2 subdev + selection APIs are very similar, there's one fundamental + difference between the two. On sub-device API, the selection + rectangle refers to the media bus format, and is bound to a + sub-device's pad. On the V4L2 interface the selection rectangles + refer to the in-memory pixel format. + + This section defines the common definitions of the + selection interfaces on the two APIs. + +
+ + Selection targets + + The precise meaning of the selection targets may be + dependent on which of the two interfaces they are used. + + + Selection target definitions + + + + + + + &cs-def; + + + Target name + id + Definition + Valid for V4L2 + Valid for V4L2 subdev + + + + + V4L2_SEL_TGT_CROP + 0x0000 + Crop rectangle. Defines the cropped area. + Yes + Yes + + + V4L2_SEL_TGT_CROP_DEFAULT + 0x0001 + Suggested cropping rectangle that covers the "whole picture". + Yes + No + + + V4L2_SEL_TGT_CROP_BOUNDS + 0x0002 + Bounds of the crop rectangle. All valid crop + rectangles fit inside the crop bounds rectangle. + + Yes + Yes + + + V4L2_SEL_TGT_COMPOSE + 0x0100 + Compose rectangle. Used to configure scaling + and composition. + Yes + Yes + + + V4L2_SEL_TGT_COMPOSE_DEFAULT + 0x0101 + Suggested composition rectangle that covers the "whole picture". + Yes + No + + + V4L2_SEL_TGT_COMPOSE_BOUNDS + 0x0102 + Bounds of the compose rectangle. All valid compose + rectangles fit inside the compose bounds rectangle. + Yes + Yes + + + V4L2_SEL_TGT_COMPOSE_PADDED + 0x0103 + The active area and all padding pixels that are inserted or + modified by hardware. + Yes + No + + + +
+ +
+ +
+ + Selection flags + + + Selection flag definitions + + + + + + + &cs-def; + + + Flag name + id + Definition + Valid for V4L2 + Valid for V4L2 subdev + + + + + V4L2_SEL_FLAG_GE + (1 << 0) + Suggest the driver it should choose greater or + equal rectangle (in size) than was requested. Albeit the + driver may choose a lesser size, it will only do so due to + hardware limitations. Without this flag (and + V4L2_SEL_FLAG_LE) the + behaviour is to choose the closest possible + rectangle. + Yes + Yes + + + V4L2_SEL_FLAG_LE + (1 << 1) + Suggest the driver it + should choose lesser or equal rectangle (in size) than was + requested. Albeit the driver may choose a greater size, it + will only do so due to hardware limitations. + Yes + Yes + + + V4L2_SEL_FLAG_KEEP_CONFIG + (1 << 2) + The configuration must not be propagated to any + further processing steps. If this flag is not given, the + configuration is propagated inside the subdevice to all + further processing steps. + No + Yes + + + +
+ +
+ +
diff --git a/Documentation/DocBook/media/v4l/v4l2.xml b/Documentation/DocBook/media/v4l/v4l2.xml index 008c2d7..eee6908 100644 --- a/Documentation/DocBook/media/v4l/v4l2.xml +++ b/Documentation/DocBook/media/v4l/v4l2.xml @@ -140,6 +140,11 @@ structs, ioctls) must be noted in more detail in the history chapter applications. --> + 3.6 + 2012-07-02 + hv + Added VIDIOC_ENUM_FREQ_BANDS. + 3.5 2012-05-07 sa, sn @@ -534,6 +539,7 @@ and discussions on the V4L mailing list. &sub-enum-fmt; &sub-enum-framesizes; &sub-enum-frameintervals; + &sub-enum-freq-bands; &sub-enuminput; &sub-enumoutput; &sub-enumstd; @@ -589,6 +595,11 @@ and discussions on the V4L mailing list. &sub-write; + + Common definitions for V4L2 and V4L2 subdev interfaces + &sub-selections-common; + + Video For Linux Two Header File &sub-videodev2-h; diff --git a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml index a2474ec..a8cda1a 100644 --- a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml +++ b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml @@ -64,7 +64,7 @@ different sizes. To allocate device buffers applications initialize relevant fields of the v4l2_create_buffers structure. They set the type field in the -v4l2_format structure, embedded in this +&v4l2-format; structure, embedded in this structure, to the respective stream or buffer type. count must be set to the number of required buffers. memory specifies the required I/O method. The @@ -97,7 +97,13 @@ information. __u32 count - The number of buffers requested or granted. + The number of buffers requested or granted. If count == 0, then + VIDIOC_CREATE_BUFS will set index + to the current number of created buffers, and it will check the validity of + memory and format.type. + If those are invalid -1 is returned and errno is set to &EINVAL;, + otherwise VIDIOC_CREATE_BUFS returns 0. It will + never set errno to &EBUSY; in this particular case. __u32 @@ -108,7 +114,7 @@ information. /> - struct v4l2_format + &v4l2-format; format Filled in by the application, preserved by the driver. diff --git a/Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml b/Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml index 6673ce5..cd7720d 100644 --- a/Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml +++ b/Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml @@ -54,15 +54,9 @@ interface and may change in the future. - To query the available timings, applications initialize the -index field and zero the reserved array of &v4l2-dv-timings-cap; -and call the VIDIOC_DV_TIMINGS_CAP ioctl with a pointer to this -structure. Drivers fill the rest of the structure or return an -&EINVAL; when the index is out of bounds. To enumerate all supported DV timings, -applications shall begin at index zero, incrementing by one until the -driver returns EINVAL. Note that drivers may enumerate a -different set of DV timings after switching the video input or -output. + To query the capabilities of the DV receiver/transmitter applications can call +this ioctl and the driver will fill in the structure. Note that drivers may return +different values after switching the video input or output. struct <structname>v4l2_bt_timings_cap</structname> @@ -115,7 +109,7 @@ output. __u32 reserved[16] - + Reserved for future extensions. Drivers must set the array to zero. diff --git a/Documentation/DocBook/media/v4l/vidioc-enum-freq-bands.xml b/Documentation/DocBook/media/v4l/vidioc-enum-freq-bands.xml new file mode 100644 index 0000000..6541ba0 --- /dev/null +++ b/Documentation/DocBook/media/v4l/vidioc-enum-freq-bands.xml @@ -0,0 +1,179 @@ + + + ioctl VIDIOC_ENUM_FREQ_BANDS + &manvol; + + + + VIDIOC_ENUM_FREQ_BANDS + Enumerate supported frequency bands + + + + + + int ioctl + int fd + int request + struct v4l2_frequency_band +*argp + + + + + + Arguments + + + + fd + + &fd; + + + + request + + VIDIOC_ENUM_FREQ_BANDS + + + + argp + + + + + + + + + Description + + + Experimental + This is an experimental + interface and may change in the future. + + + Enumerates the frequency bands that a tuner or modulator supports. +To do this applications initialize the tuner, +type and index fields, +and zero out the reserved array of a &v4l2-frequency-band; and +call the VIDIOC_ENUM_FREQ_BANDS ioctl with a pointer +to this structure. + + This ioctl is supported if the V4L2_TUNER_CAP_FREQ_BANDS capability + of the corresponding tuner/modulator is set. + +
+ struct <structname>v4l2_frequency_band</structname> + + &cs-str; + + + __u32 + tuner + The tuner or modulator index number. This is the +same value as in the &v4l2-input; tuner +field and the &v4l2-tuner; index field, or +the &v4l2-output; modulator field and the +&v4l2-modulator; index field. + + + __u32 + type + The tuner type. This is the same value as in the +&v4l2-tuner; type field. The type must be set +to V4L2_TUNER_RADIO for /dev/radioX +device nodes, and to V4L2_TUNER_ANALOG_TV +for all others. Set this field to V4L2_TUNER_RADIO for +modulators (currently only radio modulators are supported). +See + + + __u32 + index + Identifies the frequency band, set by the application. + + + __u32 + capability + The tuner/modulator capability flags for +this frequency band, see . The V4L2_TUNER_CAP_LOW +capability must be the same for all frequency bands of the selected tuner/modulator. +So either all bands have that capability set, or none of them have that capability. + + + __u32 + rangelow + The lowest tunable frequency in +units of 62.5 kHz, or if the capability +flag V4L2_TUNER_CAP_LOW is set, in units of 62.5 +Hz, for this frequency band. + + + __u32 + rangehigh + The highest tunable frequency in +units of 62.5 kHz, or if the capability +flag V4L2_TUNER_CAP_LOW is set, in units of 62.5 +Hz, for this frequency band. + + + __u32 + modulation + The supported modulation systems of this frequency band. + See . Note that currently only one + modulation system per frequency band is supported. More work will need to + be done if multiple modulation systems are possible. Contact the + linux-media mailing list (&v4l-ml;) if you need that functionality. + + + __u32 + reserved[9] + Reserved for future extensions. Applications and drivers + must set the array to zero. + + + +
+ + + Band Modulation Systems + + &cs-def; + + + V4L2_BAND_MODULATION_VSB + 0x02 + Vestigial Sideband modulation, used for analog TV. + + + V4L2_BAND_MODULATION_FM + 0x04 + Frequency Modulation, commonly used for analog radio. + + + V4L2_BAND_MODULATION_AM + 0x08 + Amplitude Modulation, commonly used for analog radio. + + + +
+ + + + &return-value; + + + + EINVAL + + The tuner or index +is out of bounds or the type field is wrong. + + + + + diff --git a/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml b/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml index 69c178a..c7a1c46 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml @@ -98,11 +98,12 @@ the &v4l2-output; modulator field and the __u32 type The tuner type. This is the same value as in the -&v4l2-tuner; type field. See The type must be set +&v4l2-tuner; type field. The type must be set to V4L2_TUNER_RADIO for /dev/radioX device nodes, and to V4L2_TUNER_ANALOG_TV -for all others. The field is not applicable to modulators, &ie; ignored -by drivers. See +for all others. Set this field to V4L2_TUNER_RADIO for +modulators (currently only radio modulators are supported). +See __u32 @@ -135,6 +136,12 @@ bounds or the value in the type field is wrong. + + EBUSY + + A hardware seek is in progress. + + diff --git a/Documentation/DocBook/media/v4l/vidioc-g-selection.xml b/Documentation/DocBook/media/v4l/vidioc-g-selection.xml index bb04eff..f76d8a6 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-selection.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-selection.xml @@ -65,9 +65,9 @@ Do not use multiplanar buffers. Use V4L2_BUF_TYPE_VIDEO_CAPTURE . Use V4L2_BUF_TYPE_VIDEO_OUTPUT instead of V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE . The next step is setting the value of &v4l2-selection; target field -to V4L2_SEL_TGT_CROP_ACTIVE ( -V4L2_SEL_TGT_COMPOSE_ACTIVE ). Please refer to table or for additional +to V4L2_SEL_TGT_CROP ( +V4L2_SEL_TGT_COMPOSE ). Please refer to table or for additional targets. The flags and reserved fields of &v4l2-selection; are ignored and they must be filled with zeros. The driver fills the rest of the structure or @@ -86,9 +86,9 @@ use multiplanar buffers. Use V4L2_BUF_TYPE_VIDEO_CAPTURE . Use V4L2_BUF_TYPE_VIDEO_OUTPUT instead of V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE . The next step is setting the value of &v4l2-selection; target to -V4L2_SEL_TGT_CROP_ACTIVE ( -V4L2_SEL_TGT_COMPOSE_ACTIVE ). Please refer to table or for additional +V4L2_SEL_TGT_CROP ( +V4L2_SEL_TGT_COMPOSE ). Please refer to table or for additional targets. The &v4l2-rect; r rectangle need to be set to the desired active area. Field &v4l2-selection; reserved is ignored and must be filled with zeros. The driver may adjust @@ -154,74 +154,8 @@ exist no rectangle that satisfies the constraints. - - - Selection targets. - - &cs-def; - - - V4L2_SEL_TGT_CROP_ACTIVE - 0x0000 - The area that is currently cropped by hardware. - - - V4L2_SEL_TGT_CROP_DEFAULT - 0x0001 - Suggested cropping rectangle that covers the "whole picture". - - - V4L2_SEL_TGT_CROP_BOUNDS - 0x0002 - Limits for the cropping rectangle. - - - V4L2_SEL_TGT_COMPOSE_ACTIVE - 0x0100 - The area to which data is composed by hardware. - - - V4L2_SEL_TGT_COMPOSE_DEFAULT - 0x0101 - Suggested composing rectangle that covers the "whole picture". - - - V4L2_SEL_TGT_COMPOSE_BOUNDS - 0x0102 - Limits for the composing rectangle. - - - V4L2_SEL_TGT_COMPOSE_PADDED - 0x0103 - The active area and all padding pixels that are inserted or modified by hardware. - - - -
- - - - - Selection constraint flags - - &cs-def; - - - V4L2_SEL_FLAG_GE - 0x00000001 - Indicates that the adjusted rectangle must contain the original - &v4l2-selection; r rectangle. - - - V4L2_SEL_FLAG_LE - 0x00000002 - Indicates that the adjusted rectangle must be inside the original - &v4l2-rect; r rectangle. - - - -
- + Selection targets and flags are documented in .
@@ -252,14 +186,14 @@ exist no rectangle that satisfies the constraints. __u32 target - Used to select between cropping + Used to select between cropping and composing rectangles. __u32 flags Flags controlling the selection rectangle adjustments, refer to - selection flags. + selection flags. &v4l2-rect; diff --git a/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml b/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml index 62a1aa2..7203951 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml @@ -119,10 +119,14 @@ field is not quite clear.--> . Audio flags indicate the ability to decode audio subprograms. They will not change, for example with the current video standard.When -the structure refers to a radio tuner only the -V4L2_TUNER_CAP_LOW, -V4L2_TUNER_CAP_STEREO and -V4L2_TUNER_CAP_RDS flags can be set. +the structure refers to a radio tuner the +V4L2_TUNER_CAP_LANG1, +V4L2_TUNER_CAP_LANG2 and +V4L2_TUNER_CAP_NORM flags can't be used. +If multiple frequency bands are supported, then +capability is the union of all +capability> fields of each &v4l2-frequency-band;. + __u32 @@ -130,7 +134,9 @@ the structure refers to a radio tuner only the The lowest tunable frequency in units of 62.5 kHz, or if the capability flag V4L2_TUNER_CAP_LOW is set, in units of 62.5 -Hz. +Hz. If multiple frequency bands are supported, then +rangelow is the lowest frequency +of all the frequency bands. __u32 @@ -138,7 +144,9 @@ Hz. The highest tunable frequency in units of 62.5 kHz, or if the capability flag V4L2_TUNER_CAP_LOW is set, in units of 62.5 -Hz. +Hz. If multiple frequency bands are supported, then +rangehigh is the highest frequency +of all the frequency bands. __u32 @@ -276,6 +284,18 @@ can or must be switched. (B/G PAL tuners for example are typically not V4L2_TUNER_ANALOG_TV tuners can have this capability. + V4L2_TUNER_CAP_HWSEEK_BOUNDED + 0x0004 + If set, then this tuner supports the hardware seek functionality + where the seek stops when it reaches the end of the frequency range. + + + V4L2_TUNER_CAP_HWSEEK_WRAP + 0x0008 + If set, then this tuner supports the hardware seek functionality + where the seek wraps around when it reaches the end of the frequency range. + + V4L2_TUNER_CAP_STEREO 0x0010 Stereo audio reception is supported. @@ -328,6 +348,12 @@ radio tuners. 0x0200 The RDS data is parsed by the hardware and set via controls. + + V4L2_TUNER_CAP_FREQ_BANDS + 0x0400 + The &VIDIOC-ENUM-FREQ-BANDS; ioctl can be used to enumerate + the available frequency bands. + diff --git a/Documentation/DocBook/media/v4l/vidioc-qbuf.xml b/Documentation/DocBook/media/v4l/vidioc-qbuf.xml index 9caa49a..77ff5be 100644 --- a/Documentation/DocBook/media/v4l/vidioc-qbuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-qbuf.xml @@ -71,12 +71,9 @@ initialize the bytesused, field and timestamp fields, see for details. -Applications must also set flags to 0. If a driver -supports capturing from specific video inputs and you want to specify a video -input, then flags should be set to -V4L2_BUF_FLAG_INPUT and the field -input must be initialized to the desired input. -The reserved field must be set to 0. When using +Applications must also set flags to 0. +The reserved2 and +reserved fields must be set to 0. When using the multi-planar API, the m.planes field must contain a userspace pointer to a filled-in array of &v4l2-plane; and the length diff --git a/Documentation/DocBook/media/v4l/vidioc-querycap.xml b/Documentation/DocBook/media/v4l/vidioc-querycap.xml index 4643505..f33dd74 100644 --- a/Documentation/DocBook/media/v4l/vidioc-querycap.xml +++ b/Documentation/DocBook/media/v4l/vidioc-querycap.xml @@ -192,6 +192,19 @@ linkend="output">Video Output interface. Video Output interface. + V4L2_CAP_VIDEO_M2M + 0x00004000 + The device supports the single-planar API through the + Video Memory-To-Memory interface. + + + V4L2_CAP_VIDEO_M2M_MPLANE + 0x00008000 + The device supports the + multi-planar API through the + Video Memory-To-Memory interface. + + V4L2_CAP_VIDEO_OVERLAY 0x00000004 The device supports the Start a hardware frequency seek from the current frequency. To do this applications initialize the tuner, type, seek_upward, -spacing and -wrap_around fields, and zero out the -reserved array of a &v4l2-hw-freq-seek; and -call the VIDIOC_S_HW_FREQ_SEEK ioctl with a pointer -to this structure. +wrap_around, spacing, +rangelow and rangehigh +fields, and zero out the reserved array of a +&v4l2-hw-freq-seek; and call the VIDIOC_S_HW_FREQ_SEEK +ioctl with a pointer to this structure. + + The rangelow and +rangehigh fields can be set to a non-zero value to +tell the driver to search a specific band. If the &v4l2-tuner; +capability field has the +V4L2_TUNER_CAP_HWSEEK_PROG_LIM flag set, these values +must fall within one of the bands returned by &VIDIOC-ENUM-FREQ-BANDS;. If +the V4L2_TUNER_CAP_HWSEEK_PROG_LIM flag is not set, +then these values must exactly match those of one of the bands returned by +&VIDIOC-ENUM-FREQ-BANDS;. If the current frequency of the tuner does not fall +within the selected band it will be clamped to fit in the band before the +seek is started. + + If an error is returned, then the original frequency will + be restored. This ioctl is supported if the V4L2_CAP_HW_FREQ_SEEK capability is set. @@ -87,7 +102,10 @@ field and the &v4l2-tuner; index field. __u32 wrap_around - If non-zero, wrap around when at the end of the frequency range, else stop seeking. + If non-zero, wrap around when at the end of the frequency range, else stop seeking. + The &v4l2-tuner; capability field will tell you what the + hardware supports. + __u32 @@ -96,7 +114,27 @@ field and the &v4l2-tuner; index field. __u32 - reserved[7] + rangelow + If non-zero, the lowest tunable frequency of the band to +search in units of 62.5 kHz, or if the &v4l2-tuner; +capability field has the +V4L2_TUNER_CAP_LOW flag set, in units of 62.5 Hz. +If rangelow is zero a reasonable default value +is used. + + + __u32 + rangehigh + If non-zero, the highest tunable frequency of the band to +search in units of 62.5 kHz, or if the &v4l2-tuner; +capability field has the +V4L2_TUNER_CAP_LOW flag set, in units of 62.5 Hz. +If rangehigh is zero a reasonable default value +is used. + + + __u32 + reserved[5] Reserved for future extensions. Applications must set the array to zero. @@ -113,14 +151,22 @@ field and the &v4l2-tuner; index field. EINVAL The tuner index is out of -bounds, the wrap_around value is not supported or the value in the type field is -wrong. +bounds, the wrap_around value is not supported or +one of the values in the type, +rangelow or rangehigh +fields is wrong. + + + + ENODATA + + The hardware seek found no channels. - EAGAIN + EBUSY - The ioctl timed-out. Try again. + Another hardware seek is already in progress. diff --git a/Documentation/DocBook/media/v4l/vidioc-subdev-g-selection.xml b/Documentation/DocBook/media/v4l/vidioc-subdev-g-selection.xml index 208e9f0..f33cc81 100644 --- a/Documentation/DocBook/media/v4l/vidioc-subdev-g-selection.xml +++ b/Documentation/DocBook/media/v4l/vidioc-subdev-g-selection.xml @@ -72,10 +72,10 @@
Types of selection targets - There are two types of selection targets: actual and bounds. - The ACTUAL targets are the targets which configure the hardware. - The BOUNDS target will return a rectangle that contain all - possible ACTUAL rectangles. + There are two types of selection targets: actual and bounds. The + actual targets are the targets which configure the hardware. The BOUNDS + target will return a rectangle that contain all possible actual + rectangles.
@@ -87,71 +87,8 @@ EINVAL.
- - V4L2 subdev selection targets - - &cs-def; - - - V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL - 0x0000 - Actual crop. Defines the cropping - performed by the processing step. - - - V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS - 0x0002 - Bounds of the crop rectangle. - - - V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL - 0x0100 - Actual compose rectangle. Used to configure scaling - on sink pads and composition on source pads. - - - V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS - 0x0102 - Bounds of the compose rectangle. - - - -
- - - V4L2 subdev selection flags - - &cs-def; - - - V4L2_SUBDEV_SEL_FLAG_SIZE_GE - (1 << 0) Suggest the driver it - should choose greater or equal rectangle (in size) than - was requested. Albeit the driver may choose a lesser size, - it will only do so due to hardware limitations. Without - this flag (and - V4L2_SUBDEV_SEL_FLAG_SIZE_LE) the - behaviour is to choose the closest possible - rectangle. - - - V4L2_SUBDEV_SEL_FLAG_SIZE_LE - (1 << 1) Suggest the driver it - should choose lesser or equal rectangle (in size) than was - requested. Albeit the driver may choose a greater size, it - will only do so due to hardware limitations. - - - V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG - (1 << 2) - The configuration should not be propagated to any - further processing steps. If this flag is not given, the - configuration is propagated inside the subdevice to all - further processing steps. - - - -
+ Selection targets and flags are documented in . struct <structname>v4l2_subdev_selection</structname> @@ -173,13 +110,13 @@ __u32targetTarget selection rectangle. See - .. + . __u32 flags Flags. See - . + . &v4l2-rect; diff --git a/Documentation/IRQ-domain.txt b/Documentation/IRQ-domain.txt index 27dcaab..1401cec 100644 --- a/Documentation/IRQ-domain.txt +++ b/Documentation/IRQ-domain.txt @@ -93,6 +93,7 @@ Linux IRQ number into the hardware. Most drivers cannot use this mapping. ==== Legacy ==== +irq_domain_add_simple() irq_domain_add_legacy() irq_domain_add_legacy_isa() @@ -115,3 +116,7 @@ The legacy map should only be used if fixed IRQ mappings must be supported. For example, ISA controllers would use the legacy map for mapping Linux IRQs 0-15 so that existing ISA drivers get the correct IRQ numbers. + +Most users of legacy mappings should use irq_domain_add_simple() which +will use a legacy domain only if an IRQ range is supplied by the +system and will otherwise use a linear domain mapping. diff --git a/Documentation/block/queue-sysfs.txt b/Documentation/block/queue-sysfs.txt index d8147b3..6518a55 100644 --- a/Documentation/block/queue-sysfs.txt +++ b/Documentation/block/queue-sysfs.txt @@ -38,6 +38,13 @@ read or write requests. Note that the total allocated number may be twice this amount, since it applies only to reads or writes (not the accumulated sum). +To avoid priority inversion through request starvation, a request +queue maintains a separate request pool per each cgroup when +CONFIG_BLK_CGROUP is enabled, and this parameter applies to each such +per-block-cgroup request pool. IOW, if there are N block cgroups, +each request queue may have upto N request pools, each independently +regulated by nr_requests. + read_ahead_kb (RW) ------------------ Maximum number of kilobytes to read-ahead for filesystems on this block diff --git a/Documentation/cgroups/hugetlb.txt b/Documentation/cgroups/hugetlb.txt new file mode 100644 index 0000000..a9faaca --- /dev/null +++ b/Documentation/cgroups/hugetlb.txt @@ -0,0 +1,45 @@ +HugeTLB Controller +------------------- + +The HugeTLB controller allows to limit the HugeTLB usage per control group and +enforces the controller limit during page fault. Since HugeTLB doesn't +support page reclaim, enforcing the limit at page fault time implies that, +the application will get SIGBUS signal if it tries to access HugeTLB pages +beyond its limit. This requires the application to know beforehand how much +HugeTLB pages it would require for its use. + +HugeTLB controller can be created by first mounting the cgroup filesystem. + +# mount -t cgroup -o hugetlb none /sys/fs/cgroup + +With the above step, the initial or the parent HugeTLB group becomes +visible at /sys/fs/cgroup. At bootup, this group includes all the tasks in +the system. /sys/fs/cgroup/tasks lists the tasks in this cgroup. + +New groups can be created under the parent group /sys/fs/cgroup. + +# cd /sys/fs/cgroup +# mkdir g1 +# echo $$ > g1/tasks + +The above steps create a new group g1 and move the current shell +process (bash) into it. + +Brief summary of control files + + hugetlb..limit_in_bytes # set/show limit of "hugepagesize" hugetlb usage + hugetlb..max_usage_in_bytes # show max "hugepagesize" hugetlb usage recorded + hugetlb..usage_in_bytes # show current res_counter usage for "hugepagesize" hugetlb + hugetlb..failcnt # show the number of allocation failure due to HugeTLB limit + +For a system supporting two hugepage size (16M and 16G) the control +files include: + +hugetlb.16GB.limit_in_bytes +hugetlb.16GB.max_usage_in_bytes +hugetlb.16GB.usage_in_bytes +hugetlb.16GB.failcnt +hugetlb.16MB.limit_in_bytes +hugetlb.16MB.max_usage_in_bytes +hugetlb.16MB.usage_in_bytes +hugetlb.16MB.failcnt diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index dd88540..4372e6b 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -73,6 +73,8 @@ Brief summary of control files. memory.kmem.tcp.limit_in_bytes # set/show hard limit for tcp buf memory memory.kmem.tcp.usage_in_bytes # show current tcp buf memory allocation + memory.kmem.tcp.failcnt # show the number of tcp buf memory usage hits limits + memory.kmem.tcp.max_usage_in_bytes # show max tcp buf memory usage recorded 1. History @@ -187,12 +189,12 @@ the cgroup that brought it in -- this will happen on memory pressure). But see section 8.2: when moving a task to another cgroup, its pages may be recharged to the new cgroup, if move_charge_at_immigrate has been chosen. -Exception: If CONFIG_CGROUP_CGROUP_MEM_RES_CTLR_SWAP is not used. +Exception: If CONFIG_CGROUP_CGROUP_MEMCG_SWAP is not used. When you do swapoff and make swapped-out pages of shmem(tmpfs) to be backed into memory in force, charges for pages are accounted against the caller of swapoff rather than the users of shmem. -2.4 Swap Extension (CONFIG_CGROUP_MEM_RES_CTLR_SWAP) +2.4 Swap Extension (CONFIG_MEMCG_SWAP) Swap Extension allows you to record charge for swap. A swapped-in page is charged back to original page allocator if possible. @@ -259,7 +261,7 @@ When oom event notifier is registered, event will be delivered. per-zone-per-cgroup LRU (cgroup's private LRU) is just guarded by zone->lru_lock, it has no lock of its own. -2.7 Kernel Memory Extension (CONFIG_CGROUP_MEM_RES_CTLR_KMEM) +2.7 Kernel Memory Extension (CONFIG_MEMCG_KMEM) With the Kernel memory extension, the Memory Controller is able to limit the amount of kernel memory used by the system. Kernel memory is fundamentally @@ -286,8 +288,8 @@ per cgroup, instead of globally. a. Enable CONFIG_CGROUPS b. Enable CONFIG_RESOURCE_COUNTERS -c. Enable CONFIG_CGROUP_MEM_RES_CTLR -d. Enable CONFIG_CGROUP_MEM_RES_CTLR_SWAP (to use swap extension) +c. Enable CONFIG_MEMCG +d. Enable CONFIG_MEMCG_SWAP (to use swap extension) 1. Prepare the cgroups (see cgroups.txt, Why are cgroups needed?) # mount -t tmpfs none /sys/fs/cgroup diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt index 946c733..1c18449 100644 --- a/Documentation/device-mapper/dm-raid.txt +++ b/Documentation/device-mapper/dm-raid.txt @@ -27,6 +27,10 @@ The target is named "raid" and it accepts the following parameters: - rotating parity N (right-to-left) with data restart raid6_nc RAID6 N continue - rotating parity N (right-to-left) with data continuation + raid10 Various RAID10 inspired algorithms chosen by additional params + - RAID10: Striped Mirrors (aka 'Striping on top of mirrors') + - RAID1E: Integrated Adjacent Stripe Mirroring + - and other similar RAID10 variants Reference: Chapter 4 of http://www.snia.org/sites/default/files/SNIA_DDF_Technical_Position_v2.0.pdf @@ -59,6 +63,28 @@ The target is named "raid" and it accepts the following parameters: logical size of the array. The bitmap records the device synchronisation state for each region. + [raid10_copies <# copies>] + [raid10_format near] + These two options are used to alter the default layout of + a RAID10 configuration. The number of copies is can be + specified, but the default is 2. There are other variations + to how the copies are laid down - the default and only current + option is "near". Near copies are what most people think of + with respect to mirroring. If these options are left + unspecified, or 'raid10_copies 2' and/or 'raid10_format near' + are given, then the layouts for 2, 3 and 4 devices are: + 2 drives 3 drives 4 drives + -------- ---------- -------------- + A1 A1 A1 A1 A2 A1 A1 A2 A2 + A2 A2 A2 A3 A3 A3 A3 A4 A4 + A3 A3 A4 A4 A5 A5 A5 A6 A6 + A4 A4 A5 A6 A6 A7 A7 A8 A8 + .. .. .. .. .. .. .. .. .. + The 2-device layout is equivalent 2-way RAID1. The 4-device + layout is what a traditional RAID10 would look like. The + 3-device layout is what might be called a 'RAID1E - Integrated + Adjacent Stripe Mirroring'. + <#raid_devs>: The number of devices composing the array. Each device consists of two entries. The first is the device containing the metadata (if any); the second is the one containing the diff --git a/Documentation/devicetree/bindings/arm/mrvl/intc.txt b/Documentation/devicetree/bindings/arm/mrvl/intc.txt index 80b9a94..8b53273 100644 --- a/Documentation/devicetree/bindings/arm/mrvl/intc.txt +++ b/Documentation/devicetree/bindings/arm/mrvl/intc.txt @@ -38,3 +38,23 @@ Example: reg-names = "mux status", "mux mask"; mrvl,intc-nr-irqs = <2>; }; + +* Marvell Orion Interrupt controller + +Required properties +- compatible : Should be "marvell,orion-intc". +- #interrupt-cells: Specifies the number of cells needed to encode an + interrupt source. Supported value is <1>. +- interrupt-controller : Declare this node to be an interrupt controller. +- reg : Interrupt mask address. A list of 4 byte ranges, one per controller. + One entry in the list represents 32 interrupts. + +Example: + + intc: interrupt-controller { + compatible = "marvell,orion-intc", "marvell,intc"; + interrupt-controller; + #interrupt-cells = <1>; + reg = <0xfed20204 0x04>, + <0xfed20214 0x04>; + }; diff --git a/Documentation/devicetree/bindings/ata/marvell.txt b/Documentation/devicetree/bindings/ata/marvell.txt new file mode 100644 index 0000000..b5cdd20 --- /dev/null +++ b/Documentation/devicetree/bindings/ata/marvell.txt @@ -0,0 +1,16 @@ +* Marvell Orion SATA + +Required Properties: +- compatibility : "marvell,orion-sata" +- reg : Address range of controller +- interrupts : Interrupt controller is using +- nr-ports : Number of SATA ports in use. + +Example: + + sata@80000 { + compatible = "marvell,orion-sata"; + reg = <0x80000 0x5000>; + interrupts = <21>; + nr-ports = <2>; + } diff --git a/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt b/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt index 05428f3..e137874 100644 --- a/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt +++ b/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt @@ -27,3 +27,26 @@ Example: interrupt-controller; #interrupt-cells = <1>; }; + +* Marvell Orion GPIO Controller + +Required properties: +- compatible : Should be "marvell,orion-gpio" +- reg : Address and length of the register set for controller. +- gpio-controller : So we know this is a gpio controller. +- ngpio : How many gpios this controller has. +- interrupts : Up to 4 Interrupts for the controller. + +Optional properties: +- mask-offset : For SMP Orions, offset for Nth CPU + +Example: + + gpio0: gpio@10100 { + compatible = "marvell,orion-gpio"; + #gpio-cells = <2>; + gpio-controller; + reg = <0x10100 0x40>; + ngpio = <32>; + interrupts = <35>, <36>, <37>, <38>; + }; diff --git a/Documentation/devicetree/bindings/watchdog/marvel.txt b/Documentation/devicetree/bindings/watchdog/marvel.txt new file mode 100644 index 0000000..0b2503a --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/marvel.txt @@ -0,0 +1,14 @@ +* Marvell Orion Watchdog Time + +Required Properties: + +- Compatibility : "marvell,orion-wdt" +- reg : Address of the timer registers + +Example: + + wdt@20300 { + compatible = "marvell,orion-wdt"; + reg = <0x20300 0x28>; + status = "okay"; + }; diff --git a/Documentation/dvb/get_dvb_firmware b/Documentation/dvb/get_dvb_firmware index fbb2411..12d3952e 100755 --- a/Documentation/dvb/get_dvb_firmware +++ b/Documentation/dvb/get_dvb_firmware @@ -29,7 +29,7 @@ use IO::Handle; "af9015", "ngene", "az6027", "lme2510_lg", "lme2510c_s7395", "lme2510c_s7395_old", "drxk", "drxk_terratec_h5", "drxk_hauppauge_hvr930c", "tda10071", "it9135", "it9137", - "drxk_pctv"); + "drxk_pctv", "drxk_terratec_htc_stick", "sms1xxx_hcw"); # Check args syntax() if (scalar(@ARGV) != 1); @@ -676,6 +676,24 @@ sub drxk_terratec_h5 { "$fwfile" } +sub drxk_terratec_htc_stick { + my $url = "http://ftp.terratec.de/Receiver/Cinergy_HTC_Stick/Updates/"; + my $zipfile = "Cinergy_HTC_Stick_Drv_5.09.1202.00_XP_Vista_7.exe"; + my $hash = "6722a2442a05423b781721fbc069ed5e"; + my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 0); + my $drvfile = "Cinergy HTC Stick/BDA Driver 5.09.1202.00/Windows 32 Bit/emOEM.sys"; + my $fwfile = "dvb-usb-terratec-htc-stick-drxk.fw"; + + checkstandard(); + + wgetfile($zipfile, $url . $zipfile); + verify($zipfile, $hash); + unzip($zipfile, $tmpdir); + extract("$tmpdir/$drvfile", 0x4e5c0, 42692, "$fwfile"); + + "$fwfile" +} + sub it9135 { my $sourcefile = "dvb-usb-it9135.zip"; my $url = "http://www.ite.com.tw/uploads/firmware/v3.6.0.0/$sourcefile"; @@ -748,6 +766,28 @@ sub drxk_pctv { "$fwfile"; } +sub sms1xxx_hcw { + my $url = "http://steventoth.net/linux/sms1xxx/"; + my %files = ( + 'sms1xxx-hcw-55xxx-dvbt-01.fw' => "afb6f9fb9a71d64392e8564ef9577e5a", + 'sms1xxx-hcw-55xxx-dvbt-02.fw' => "b44807098ba26e52cbedeadc052ba58f", + 'sms1xxx-hcw-55xxx-isdbt-02.fw' => "dae934eeea85225acbd63ce6cfe1c9e4", + ); + + checkstandard(); + + my $allfiles; + foreach my $fwfile (keys %files) { + wgetfile($fwfile, "$url/$fwfile"); + verify($fwfile, $files{$fwfile}); + $allfiles .= " $fwfile"; + } + + $allfiles =~ s/^\s//; + + $allfiles; +} + # --------------------------------------------------------------- # Utilities diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt index ba4be8b..4cf1a2a 100644 --- a/Documentation/fault-injection/fault-injection.txt +++ b/Documentation/fault-injection/fault-injection.txt @@ -240,3 +240,30 @@ trap "echo 0 > /sys/kernel/debug/$FAILTYPE/probability" SIGINT SIGTERM EXIT echo "Injecting errors into the module $module... (interrupt to stop)" sleep 1000000 +Tool to run command with failslab or fail_page_alloc +---------------------------------------------------- +In order to make it easier to accomplish the tasks mentioned above, we can use +tools/testing/fault-injection/failcmd.sh. Please run a command +"./tools/testing/fault-injection/failcmd.sh --help" for more information and +see the following examples. + +Examples: + +Run a command "make -C tools/testing/selftests/ run_tests" with injecting slab +allocation failure. + + # ./tools/testing/fault-injection/failcmd.sh \ + -- make -C tools/testing/selftests/ run_tests + +Same as above except to specify 100 times failures at most instead of one time +at most by default. + + # ./tools/testing/fault-injection/failcmd.sh --times=100 \ + -- make -C tools/testing/selftests/ run_tests + +Same as above except to inject page allocation failure instead of slab +allocation failure. + + # env FAILCMD_TYPE=fail_page_alloc \ + ./tools/testing/fault-injection/failcmd.sh --times=100 \ + -- make -C tools/testing/selftests/ run_tests diff --git a/Documentation/fault-injection/notifier-error-inject.txt b/Documentation/fault-injection/notifier-error-inject.txt new file mode 100644 index 0000000..c83526c --- /dev/null +++ b/Documentation/fault-injection/notifier-error-inject.txt @@ -0,0 +1,99 @@ +Notifier error injection +======================== + +Notifier error injection provides the ability to inject artifical errors to +specified notifier chain callbacks. It is useful to test the error handling of +notifier call chain failures which is rarely executed. There are kernel +modules that can be used to test the following notifiers. + + * CPU notifier + * PM notifier + * Memory hotplug notifier + * powerpc pSeries reconfig notifier + +CPU notifier error injection module +----------------------------------- +This feature can be used to test the error handling of the CPU notifiers by +injecting artifical errors to CPU notifier chain callbacks. + +If the notifier call chain should be failed with some events notified, write +the error code to debugfs interface +/sys/kernel/debug/notifier-error-inject/cpu/actions//error + +Possible CPU notifier events to be failed are: + + * CPU_UP_PREPARE + * CPU_UP_PREPARE_FROZEN + * CPU_DOWN_PREPARE + * CPU_DOWN_PREPARE_FROZEN + +Example1: Inject CPU offline error (-1 == -EPERM) + + # cd /sys/kernel/debug/notifier-error-inject/cpu + # echo -1 > actions/CPU_DOWN_PREPARE/error + # echo 0 > /sys/devices/system/cpu/cpu1/online + bash: echo: write error: Operation not permitted + +Example2: inject CPU online error (-2 == -ENOENT) + + # echo -2 > actions/CPU_UP_PREPARE/error + # echo 1 > /sys/devices/system/cpu/cpu1/online + bash: echo: write error: No such file or directory + +PM notifier error injection module +---------------------------------- +This feature is controlled through debugfs interface +/sys/kernel/debug/notifier-error-inject/pm/actions//error + +Possible PM notifier events to be failed are: + + * PM_HIBERNATION_PREPARE + * PM_SUSPEND_PREPARE + * PM_RESTORE_PREPARE + +Example: Inject PM suspend error (-12 = -ENOMEM) + + # cd /sys/kernel/debug/notifier-error-inject/pm/ + # echo -12 > actions/PM_SUSPEND_PREPARE/error + # echo mem > /sys/power/state + bash: echo: write error: Cannot allocate memory + +Memory hotplug notifier error injection module +---------------------------------------------- +This feature is controlled through debugfs interface +/sys/kernel/debug/notifier-error-inject/memory/actions//error + +Possible memory notifier events to be failed are: + + * MEM_GOING_ONLINE + * MEM_GOING_OFFLINE + +Example: Inject memory hotplug offline error (-12 == -ENOMEM) + + # cd /sys/kernel/debug/notifier-error-inject/memory + # echo -12 > actions/MEM_GOING_OFFLINE/error + # echo offline > /sys/devices/system/memory/memoryXXX/state + bash: echo: write error: Cannot allocate memory + +powerpc pSeries reconfig notifier error injection module +-------------------------------------------------------- +This feature is controlled through debugfs interface +/sys/kernel/debug/notifier-error-inject/pSeries-reconfig/actions//error + +Possible pSeries reconfig notifier events to be failed are: + + * PSERIES_RECONFIG_ADD + * PSERIES_RECONFIG_REMOVE + * PSERIES_DRCONF_MEM_ADD + * PSERIES_DRCONF_MEM_REMOVE + +For more usage examples +----------------------- +There are tools/testing/selftests using the notifier error injection features +for CPU and memory notifiers. + + * tools/testing/selftests/cpu-hotplug/on-off-test.sh + * tools/testing/selftests/memory-hotplug/on-off-test.sh + +These scripts first do simple online and offline tests and then do fault +injection tests if notifier error injection module is available. diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 76112da..afaff31 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -13,6 +13,14 @@ Who: Jim Cromie , Jason Baron --------------------------- +What: /proc/sys/vm/nr_pdflush_threads +When: 2012 +Why: Since pdflush is deprecated, the interface exported in /proc/sys/vm/ + should be removed. +Who: Wanpeng Li + +--------------------------- + What: CONFIG_APM_CPU_IDLE, and its ability to call APM BIOS in idle When: 2012 Why: This optional sub-feature of APM is of dubious reliability, @@ -70,20 +78,6 @@ Who: Luis R. Rodriguez --------------------------- -What: IRQF_SAMPLE_RANDOM -Check: IRQF_SAMPLE_RANDOM -When: July 2009 - -Why: Many of IRQF_SAMPLE_RANDOM users are technically bogus as entropy - sources in the kernel's current entropy model. To resolve this, every - input point to the kernel's entropy pool needs to better document the - type of entropy source it actually is. This will be replaced with - additional add_*_randomness functions in drivers/char/random.c - -Who: Robin Getz & Matt Mackall - ---------------------------- - What: The ieee80211_regdom module parameter When: March 2010 / desktop catchup @@ -600,3 +594,46 @@ When: June 2013 Why: Unsupported/unmaintained/unused since 2.6 ---------------------------- + +What: V4L2 selections API target rectangle and flags unification, the + following definitions will be removed: V4L2_SEL_TGT_CROP_ACTIVE, + V4L2_SEL_TGT_COMPOSE_ACTIVE, V4L2_SUBDEV_SEL_*, V4L2_SUBDEV_SEL_FLAG_* + in favor of common V4L2_SEL_TGT_* and V4L2_SEL_FLAG_* definitions. + For more details see include/linux/v4l2-common.h. +When: 3.8 +Why: The regular V4L2 selections and the subdev selection API originally + defined distinct names for the target rectangles and flags - V4L2_SEL_* + and V4L2_SUBDEV_SEL_*. Although, it turned out that the meaning of these + target rectangles is virtually identical and the APIs were consolidated + to use single set of names - V4L2_SEL_*. This didn't involve any ABI + changes. Alias definitions were created for the original ones to avoid + any instabilities in the user space interface. After few cycles these + backward compatibility definitions will be removed. +Who: Sylwester Nawrocki + +---------------------------- + +What: Using V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags + to indicate a V4L2 memory-to-memory device capability +When: 3.8 +Why: New drivers should use new V4L2_CAP_VIDEO_M2M capability flag + to indicate a V4L2 video memory-to-memory (M2M) device and + applications can now identify a M2M video device by checking + for V4L2_CAP_VIDEO_M2M, with VIDIOC_QUERYCAP ioctl. Using ORed + V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags for M2M + devices is ambiguous and may lead, for example, to identifying + a M2M device as a video capture or output device. +Who: Sylwester Nawrocki + +---------------------------- + +What: OMAP private DMA implementation +When: 2013 +Why: We have a DMA engine implementation; all users should be updated + to use this rather than persisting with the old APIs. The old APIs + block merging the old DMA engine implementation into the DMA + engine driver. +Who: Russell King , + Santosh Shilimkar + +---------------------------- diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index e0cce2a..0f103e3 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -138,8 +138,8 @@ evict_inode: put_super: write write_super: read sync_fs: read -freeze_fs: read -unfreeze_fs: read +freeze_fs: write +unfreeze_fs: write statfs: maybe(read) (see below) remount_fs: write umount_begin: no @@ -206,6 +206,8 @@ prototypes: int (*launder_page)(struct page *); int (*is_partially_uptodate)(struct page *, read_descriptor_t *, unsigned long); int (*error_remove_page)(struct address_space *, struct page *); + int (*swap_activate)(struct file *); + int (*swap_deactivate)(struct file *); locking rules: All except set_page_dirty and freepage may block @@ -229,6 +231,8 @@ migratepage: yes (both) launder_page: yes is_partially_uptodate: yes error_remove_page: yes +swap_activate: no +swap_deactivate: no ->write_begin(), ->write_end(), ->sync_page() and ->readpage() may be called from the request handler (/dev/loop). @@ -330,6 +334,15 @@ cleaned, or an error value if not. Note that in order to prevent the page getting mapped back in and redirtied, it needs to be kept locked across the entire operation. + ->swap_activate will be called with a non-zero argument on +files backing (non block device backed) swapfiles. A return value +of zero indicates success, in which case this file can be used for +backing swapspace. The swapspace operations will be proxied to the +address space operations. + + ->swap_deactivate() will be called in the sys_swapoff() +path after ->swap_activate() returned success. + ----------------------- file_lock_operations ------------------------------ prototypes: void (*fl_copy_lock)(struct file_lock *, struct file_lock *); @@ -346,7 +359,6 @@ prototypes: int (*lm_compare_owner)(struct file_lock *, struct file_lock *); void (*lm_notify)(struct file_lock *); /* unblock callback */ int (*lm_grant)(struct file_lock *, struct file_lock *, int); - void (*lm_release_private)(struct file_lock *); void (*lm_break)(struct file_lock *); /* break_lease callback */ int (*lm_change)(struct file_lock **, int); @@ -355,7 +367,6 @@ locking rules: lm_compare_owner: yes no lm_notify: yes no lm_grant: no no -lm_release_private: maybe no lm_break: yes no lm_change yes no diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index aa754e0..065aa2d 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -592,6 +592,8 @@ struct address_space_operations { int (*migratepage) (struct page *, struct page *); int (*launder_page) (struct page *); int (*error_remove_page) (struct mapping *mapping, struct page *page); + int (*swap_activate)(struct file *); + int (*swap_deactivate)(struct file *); }; writepage: called by the VM to write a dirty page to backing store. @@ -760,6 +762,16 @@ struct address_space_operations { Setting this implies you deal with pages going away under you, unless you have them locked or reference counts increased. + swap_activate: Called when swapon is used on a file to allocate + space if necessary and pin the block lookup information in + memory. A return value of zero indicates success, + in which case this file can be used to back swapspace. The + swapspace operations will be proxied to this address space's + ->swap_{out,in} methods. + + swap_deactivate: Called during swapoff on files where swap_activate + was successful. + The File Object =============== diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt index 915f28c..849b771 100644 --- a/Documentation/ioctl/ioctl-number.txt +++ b/Documentation/ioctl/ioctl-number.txt @@ -88,6 +88,7 @@ Code Seq#(hex) Include File Comments and kernel/power/user.c '8' all SNP8023 advanced NIC card +';' 64-7F linux/vfio.h '@' 00-0F linux/radeonfb.h conflict! '@' 00-0F drivers/video/aty/aty128fb.c conflict! 'A' 00-1F linux/apm_bios.h conflict! diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 406a522..ca447b3 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -48,12 +48,6 @@ min_adv_mss - INTEGER The advertised MSS depends on the first hop route MTU, but will never be lower than this setting. -rt_cache_rebuild_count - INTEGER - The per net-namespace route cache emergency rebuild threshold. - Any net-namespace having its route cache rebuilt due to - a hash bucket chain being too long more than this many times - will have its route caching disabled - IP Fragmentation: ipfrag_high_thresh - INTEGER diff --git a/Documentation/power/power_supply_class.txt b/Documentation/power/power_supply_class.txt index 211831d..2f0ddc1 100644 --- a/Documentation/power/power_supply_class.txt +++ b/Documentation/power/power_supply_class.txt @@ -112,14 +112,24 @@ CHARGE_COUNTER - the current charge counter (in µAh). This could easily be negative; there is no empty or full value. It is only useful for relative, time-based measurements. +CONSTANT_CHARGE_CURRENT - constant charge current programmed by charger. + +CONSTANT_CHARGE_VOLTAGE - constant charge voltage programmed by charger. + ENERGY_FULL, ENERGY_EMPTY - same as above but for energy. CAPACITY - capacity in percents. +CAPACITY_ALERT_MIN - minimum capacity alert value in percents. +CAPACITY_ALERT_MAX - maximum capacity alert value in percents. CAPACITY_LEVEL - capacity level. This corresponds to POWER_SUPPLY_CAPACITY_LEVEL_*. TEMP - temperature of the power supply. +TEMP_ALERT_MIN - minimum battery temperature alert value in milli centigrade. +TEMP_ALERT_MAX - maximum battery temperature alert value in milli centigrade. TEMP_AMBIENT - ambient temperature. +TEMP_AMBIENT_ALERT_MIN - minimum ambient temperature alert value in milli centigrade. +TEMP_AMBIENT_ALERT_MAX - maximum ambient temperature alert value in milli centigrade. TIME_TO_EMPTY - seconds left for battery to be considered empty (i.e. while battery powers a load) diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt index 5df176e..7561d7e 100644 --- a/Documentation/printk-formats.txt +++ b/Documentation/printk-formats.txt @@ -53,9 +53,20 @@ Struct Resources: For printing struct resources. The 'R' and 'r' specifiers result in a printed resource with ('R') or without ('r') a decoded flags member. +Raw buffer as a hex string: + %*ph 00 01 02 ... 3f + %*phC 00:01:02: ... :3f + %*phD 00-01-02- ... -3f + %*phN 000102 ... 3f + + For printing a small buffers (up to 64 bytes long) as a hex string with + certain separator. For the larger buffers consider to use + print_hex_dump(). + MAC/FDDI addresses: %pM 00:01:02:03:04:05 + %pMR 05:04:03:02:01:00 %pMF 00-01-02-03-04-05 %pm 000102030405 @@ -67,6 +78,10 @@ MAC/FDDI addresses: the 'M' specifier to use dash ('-') separators instead of the default separator. + For Bluetooth addresses the 'R' specifier shall be used after the 'M' + specifier to use reversed byte order suitable for visual interpretation + of Bluetooth addresses which are in the little endian order. + IPv4 addresses: %pI4 1.2.3.4 diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt index 7456360..a92bba8 100644 --- a/Documentation/sound/alsa/HD-Audio-Models.txt +++ b/Documentation/sound/alsa/HD-Audio-Models.txt @@ -53,6 +53,7 @@ ALC882/883/885/888/889 acer-aspire-8930g Acer Aspire 8330G/6935G acer-aspire Acer Aspire others inv-dmic Inverted internal mic workaround + no-primary-hp VAIO Z workaround (for fixed speaker DAC) ALC861/660 ========== @@ -273,6 +274,10 @@ STAC92HD83* dell-s14 Dell laptop dell-vostro-3500 Dell Vostro 3500 laptop hp-dv7-4000 HP dv-7 4000 + hp_cNB11_intquad HP CNB models with 4 speakers + hp-zephyr HP Zephyr + hp-led HP with broken BIOS for mute LED + hp-inv-led HP with broken BIOS for inverted mute LED auto BIOS setup (default) STAC9872 diff --git a/Documentation/sysctl/fs.txt b/Documentation/sysctl/fs.txt index 13d6166..88152f2 100644 --- a/Documentation/sysctl/fs.txt +++ b/Documentation/sysctl/fs.txt @@ -32,6 +32,8 @@ Currently, these files are in /proc/sys/fs: - nr_open - overflowuid - overflowgid +- protected_hardlinks +- protected_symlinks - suid_dumpable - super-max - super-nr @@ -157,22 +159,68 @@ The default is 65534. ============================================================== +protected_hardlinks: + +A long-standing class of security issues is the hardlink-based +time-of-check-time-of-use race, most commonly seen in world-writable +directories like /tmp. The common method of exploitation of this flaw +is to cross privilege boundaries when following a given hardlink (i.e. a +root process follows a hardlink created by another user). Additionally, +on systems without separated partitions, this stops unauthorized users +from "pinning" vulnerable setuid/setgid files against being upgraded by +the administrator, or linking to special files. + +When set to "0", hardlink creation behavior is unrestricted. + +When set to "1" hardlinks cannot be created by users if they do not +already own the source file, or do not have read/write access to it. + +This protection is based on the restrictions in Openwall and grsecurity. + +============================================================== + +protected_symlinks: + +A long-standing class of security issues is the symlink-based +time-of-check-time-of-use race, most commonly seen in world-writable +directories like /tmp. The common method of exploitation of this flaw +is to cross privilege boundaries when following a given symlink (i.e. a +root process follows a symlink belonging to another user). For a likely +incomplete list of hundreds of examples across the years, please see: +http://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=/tmp + +When set to "0", symlink following behavior is unrestricted. + +When set to "1" symlinks are permitted to be followed only when outside +a sticky world-writable directory, or when the uid of the symlink and +follower match, or when the directory owner matches the symlink's owner. + +This protection is based on the restrictions in Openwall and grsecurity. + +============================================================== + suid_dumpable: This value can be used to query and set the core dump mode for setuid or otherwise protected/tainted binaries. The modes are 0 - (default) - traditional behaviour. Any process which has changed - privilege levels or is execute only will not be dumped + privilege levels or is execute only will not be dumped. 1 - (debug) - all processes dump core when possible. The core dump is owned by the current user and no security is applied. This is intended for system debugging situations only. Ptrace is unchecked. + This is insecure as it allows regular users to examine the memory + contents of privileged processes. 2 - (suidsafe) - any binary which normally would not be dumped is dumped - readable by root only. This allows the end user to remove - such a dump but not access it directly. For security reasons - core dumps in this mode will not overwrite one another or - other files. This mode is appropriate when administrators are - attempting to debug problems in a normal environment. + anyway, but only if the "core_pattern" kernel sysctl is set to + either a pipe handler or a fully qualified path. (For more details + on this limitation, see CVE-2006-2451.) This mode is appropriate + when administrators are attempting to debug problems in a normal + environment, and either have a core dump pipe handler that knows + to treat privileged core dumps with care, or specific directory + defined for catching core dumps. If a core dump happens without + a pipe handler or fully qualifid path, a message will be emitted + to syslog warning about the lack of a correct setting. ============================================================== diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 96f0ee8..dcc2a94 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -42,7 +42,6 @@ Currently, these files are in /proc/sys/vm: - mmap_min_addr - nr_hugepages - nr_overcommit_hugepages -- nr_pdflush_threads - nr_trim_pages (only if CONFIG_MMU=n) - numa_zonelist_order - oom_dump_tasks @@ -426,16 +425,6 @@ See Documentation/vm/hugetlbpage.txt ============================================================== -nr_pdflush_threads - -The current number of pdflush threads. This value is read-only. -The value changes according to the number of dirty pages in the system. - -When necessary, additional pdflush threads are created, one per second, up to -nr_pdflush_threads_max. - -============================================================== - nr_trim_pages This is available only on NOMMU kernels. @@ -502,9 +491,10 @@ oom_dump_tasks Enables a system-wide task dump (excluding kernel threads) to be produced when the kernel performs an OOM-killing and includes such -information as pid, uid, tgid, vm size, rss, cpu, oom_adj score, and -name. This is helpful to determine why the OOM killer was invoked -and to identify the rogue task that caused it. +information as pid, uid, tgid, vm size, rss, nr_ptes, swapents, +oom_score_adj score, and name. This is helpful to determine why the +OOM killer was invoked, to identify the rogue task that caused it, +and to determine why the OOM killer chose the task it did to kill. If this is set to zero, this information is suppressed. On very large systems with thousands of tasks it may not be feasible to dump @@ -574,16 +564,24 @@ of physical RAM. See above. page-cluster -page-cluster controls the number of pages which are written to swap in -a single attempt. The swap I/O size. +page-cluster controls the number of pages up to which consecutive pages +are read in from swap in a single attempt. This is the swap counterpart +to page cache readahead. +The mentioned consecutivity is not in terms of virtual/physical addresses, +but consecutive on swap space - that means they were swapped out together. It is a logarithmic value - setting it to zero means "1 page", setting it to 1 means "2 pages", setting it to 2 means "4 pages", etc. +Zero disables swap readahead completely. The default value is three (eight pages at a time). There may be some small benefits in tuning this to a different value if your workload is swap-intensive. +Lower values mean lower latencies for initial faults, but at the same time +extra faults and I/O delays for following faults if they would have been part of +that consecutive pages readahead would have brought in. + ============================================================= panic_on_oom diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt new file mode 100644 index 0000000..0cb6685 --- /dev/null +++ b/Documentation/vfio.txt @@ -0,0 +1,314 @@ +VFIO - "Virtual Function I/O"[1] +------------------------------------------------------------------------------- +Many modern system now provide DMA and interrupt remapping facilities +to help ensure I/O devices behave within the boundaries they've been +allotted. This includes x86 hardware with AMD-Vi and Intel VT-d, +POWER systems with Partitionable Endpoints (PEs) and embedded PowerPC +systems such as Freescale PAMU. The VFIO driver is an IOMMU/device +agnostic framework for exposing direct device access to userspace, in +a secure, IOMMU protected environment. In other words, this allows +safe[2], non-privileged, userspace drivers. + +Why do we want that? Virtual machines often make use of direct device +access ("device assignment") when configured for the highest possible +I/O performance. From a device and host perspective, this simply +turns the VM into a userspace driver, with the benefits of +significantly reduced latency, higher bandwidth, and direct use of +bare-metal device drivers[3]. + +Some applications, particularly in the high performance computing +field, also benefit from low-overhead, direct device access from +userspace. Examples include network adapters (often non-TCP/IP based) +and compute accelerators. Prior to VFIO, these drivers had to either +go through the full development cycle to become proper upstream +driver, be maintained out of tree, or make use of the UIO framework, +which has no notion of IOMMU protection, limited interrupt support, +and requires root privileges to access things like PCI configuration +space. + +The VFIO driver framework intends to unify these, replacing both the +KVM PCI specific device assignment code as well as provide a more +secure, more featureful userspace driver environment than UIO. + +Groups, Devices, and IOMMUs +------------------------------------------------------------------------------- + +Devices are the main target of any I/O driver. Devices typically +create a programming interface made up of I/O access, interrupts, +and DMA. Without going into the details of each of these, DMA is +by far the most critical aspect for maintaining a secure environment +as allowing a device read-write access to system memory imposes the +greatest risk to the overall system integrity. + +To help mitigate this risk, many modern IOMMUs now incorporate +isolation properties into what was, in many cases, an interface only +meant for translation (ie. solving the addressing problems of devices +with limited address spaces). With this, devices can now be isolated +from each other and from arbitrary memory access, thus allowing +things like secure direct assignment of devices into virtual machines. + +This isolation is not always at the granularity of a single device +though. Even when an IOMMU is capable of this, properties of devices, +interconnects, and IOMMU topologies can each reduce this isolation. +For instance, an individual device may be part of a larger multi- +function enclosure. While the IOMMU may be able to distinguish +between devices within the enclosure, the enclosure may not require +transactions between devices to reach the IOMMU. Examples of this +could be anything from a multi-function PCI device with backdoors +between functions to a non-PCI-ACS (Access Control Services) capable +bridge allowing redirection without reaching the IOMMU. Topology +can also play a factor in terms of hiding devices. A PCIe-to-PCI +bridge masks the devices behind it, making transaction appear as if +from the bridge itself. Obviously IOMMU design plays a major factor +as well. + +Therefore, while for the most part an IOMMU may have device level +granularity, any system is susceptible to reduced granularity. The +IOMMU API therefore supports a notion of IOMMU groups. A group is +a set of devices which is isolatable from all other devices in the +system. Groups are therefore the unit of ownership used by VFIO. + +While the group is the minimum granularity that must be used to +ensure secure user access, it's not necessarily the preferred +granularity. In IOMMUs which make use of page tables, it may be +possible to share a set of page tables between different groups, +reducing the overhead both to the platform (reduced TLB thrashing, +reduced duplicate page tables), and to the user (programming only +a single set of translations). For this reason, VFIO makes use of +a container class, which may hold one or more groups. A container +is created by simply opening the /dev/vfio/vfio character device. + +On its own, the container provides little functionality, with all +but a couple version and extension query interfaces locked away. +The user needs to add a group into the container for the next level +of functionality. To do this, the user first needs to identify the +group associated with the desired device. This can be done using +the sysfs links described in the example below. By unbinding the +device from the host driver and binding it to a VFIO driver, a new +VFIO group will appear for the group as /dev/vfio/$GROUP, where +$GROUP is the IOMMU group number of which the device is a member. +If the IOMMU group contains multiple devices, each will need to +be bound to a VFIO driver before operations on the VFIO group +are allowed (it's also sufficient to only unbind the device from +host drivers if a VFIO driver is unavailable; this will make the +group available, but not that particular device). TBD - interface +for disabling driver probing/locking a device. + +Once the group is ready, it may be added to the container by opening +the VFIO group character device (/dev/vfio/$GROUP) and using the +VFIO_GROUP_SET_CONTAINER ioctl, passing the file descriptor of the +previously opened container file. If desired and if the IOMMU driver +supports sharing the IOMMU context between groups, multiple groups may +be set to the same container. If a group fails to set to a container +with existing groups, a new empty container will need to be used +instead. + +With a group (or groups) attached to a container, the remaining +ioctls become available, enabling access to the VFIO IOMMU interfaces. +Additionally, it now becomes possible to get file descriptors for each +device within a group using an ioctl on the VFIO group file descriptor. + +The VFIO device API includes ioctls for describing the device, the I/O +regions and their read/write/mmap offsets on the device descriptor, as +well as mechanisms for describing and registering interrupt +notifications. + +VFIO Usage Example +------------------------------------------------------------------------------- + +Assume user wants to access PCI device 0000:06:0d.0 + +$ readlink /sys/bus/pci/devices/0000:06:0d.0/iommu_group +../../../../kernel/iommu_groups/26 + +This device is therefore in IOMMU group 26. This device is on the +pci bus, therefore the user will make use of vfio-pci to manage the +group: + +# modprobe vfio-pci + +Binding this device to the vfio-pci driver creates the VFIO group +character devices for this group: + +$ lspci -n -s 0000:06:0d.0 +06:0d.0 0401: 1102:0002 (rev 08) +# echo 0000:06:0d.0 > /sys/bus/pci/devices/0000:06:0d.0/driver/unbind +# echo 1102 0002 > /sys/bus/pci/drivers/vfio/new_id + +Now we need to look at what other devices are in the group to free +it for use by VFIO: + +$ ls -l /sys/bus/pci/devices/0000:06:0d.0/iommu_group/devices +total 0 +lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:00:1e.0 -> + ../../../../devices/pci0000:00/0000:00:1e.0 +lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.0 -> + ../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.0 +lrwxrwxrwx. 1 root root 0 Apr 23 16:13 0000:06:0d.1 -> + ../../../../devices/pci0000:00/0000:00:1e.0/0000:06:0d.1 + +This device is behind a PCIe-to-PCI bridge[4], therefore we also +need to add device 0000:06:0d.1 to the group following the same +procedure as above. Device 0000:00:1e.0 is a bridge that does +not currently have a host driver, therefore it's not required to +bind this device to the vfio-pci driver (vfio-pci does not currently +support PCI bridges). + +The final step is to provide the user with access to the group if +unprivileged operation is desired (note that /dev/vfio/vfio provides +no capabilities on its own and is therefore expected to be set to +mode 0666 by the system). + +# chown user:user /dev/vfio/26 + +The user now has full access to all the devices and the iommu for this +group and can access them as follows: + + int container, group, device, i; + struct vfio_group_status group_status = + { .argsz = sizeof(group_status) }; + struct vfio_iommu_x86_info iommu_info = { .argsz = sizeof(iommu_info) }; + struct vfio_iommu_x86_dma_map dma_map = { .argsz = sizeof(dma_map) }; + struct vfio_device_info device_info = { .argsz = sizeof(device_info) }; + + /* Create a new container */ + container = open("/dev/vfio/vfio, O_RDWR); + + if (ioctl(container, VFIO_GET_API_VERSION) != VFIO_API_VERSION) + /* Unknown API version */ + + if (!ioctl(container, VFIO_CHECK_EXTENSION, VFIO_X86_IOMMU)) + /* Doesn't support the IOMMU driver we want. */ + + /* Open the group */ + group = open("/dev/vfio/26", O_RDWR); + + /* Test the group is viable and available */ + ioctl(group, VFIO_GROUP_GET_STATUS, &group_status); + + if (!(group_status.flags & VFIO_GROUP_FLAGS_VIABLE)) + /* Group is not viable (ie, not all devices bound for vfio) */ + + /* Add the group to the container */ + ioctl(group, VFIO_GROUP_SET_CONTAINER, &container); + + /* Enable the IOMMU model we want */ + ioctl(container, VFIO_SET_IOMMU, VFIO_X86_IOMMU) + + /* Get addition IOMMU info */ + ioctl(container, VFIO_IOMMU_GET_INFO, &iommu_info); + + /* Allocate some space and setup a DMA mapping */ + dma_map.vaddr = mmap(0, 1024 * 1024, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); + dma_map.size = 1024 * 1024; + dma_map.iova = 0; /* 1MB starting at 0x0 from device view */ + dma_map.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE; + + ioctl(container, VFIO_IOMMU_MAP_DMA, &dma_map); + + /* Get a file descriptor for the device */ + device = ioctl(group, VFIO_GROUP_GET_DEVICE_FD, "0000:06:0d.0"); + + /* Test and setup the device */ + ioctl(device, VFIO_DEVICE_GET_INFO, &device_info); + + for (i = 0; i < device_info.num_regions; i++) { + struct vfio_region_info reg = { .argsz = sizeof(reg) }; + + reg.index = i; + + ioctl(device, VFIO_DEVICE_GET_REGION_INFO, ®); + + /* Setup mappings... read/write offsets, mmaps + * For PCI devices, config space is a region */ + } + + for (i = 0; i < device_info.num_irqs; i++) { + struct vfio_irq_info irq = { .argsz = sizeof(irq) }; + + irq.index = i; + + ioctl(device, VFIO_DEVICE_GET_IRQ_INFO, ®); + + /* Setup IRQs... eventfds, VFIO_DEVICE_SET_IRQS */ + } + + /* Gratuitous device reset and go... */ + ioctl(device, VFIO_DEVICE_RESET); + +VFIO User API +------------------------------------------------------------------------------- + +Please see include/linux/vfio.h for complete API documentation. + +VFIO bus driver API +------------------------------------------------------------------------------- + +VFIO bus drivers, such as vfio-pci make use of only a few interfaces +into VFIO core. When devices are bound and unbound to the driver, +the driver should call vfio_add_group_dev() and vfio_del_group_dev() +respectively: + +extern int vfio_add_group_dev(struct iommu_group *iommu_group, + struct device *dev, + const struct vfio_device_ops *ops, + void *device_data); + +extern void *vfio_del_group_dev(struct device *dev); + +vfio_add_group_dev() indicates to the core to begin tracking the +specified iommu_group and register the specified dev as owned by +a VFIO bus driver. The driver provides an ops structure for callbacks +similar to a file operations structure: + +struct vfio_device_ops { + int (*open)(void *device_data); + void (*release)(void *device_data); + ssize_t (*read)(void *device_data, char __user *buf, + size_t count, loff_t *ppos); + ssize_t (*write)(void *device_data, const char __user *buf, + size_t size, loff_t *ppos); + long (*ioctl)(void *device_data, unsigned int cmd, + unsigned long arg); + int (*mmap)(void *device_data, struct vm_area_struct *vma); +}; + +Each function is passed the device_data that was originally registered +in the vfio_add_group_dev() call above. This allows the bus driver +an easy place to store its opaque, private data. The open/release +callbacks are issued when a new file descriptor is created for a +device (via VFIO_GROUP_GET_DEVICE_FD). The ioctl interface provides +a direct pass through for VFIO_DEVICE_* ioctls. The read/write/mmap +interfaces implement the device region access defined by the device's +own VFIO_DEVICE_GET_REGION_INFO ioctl. + +------------------------------------------------------------------------------- + +[1] VFIO was originally an acronym for "Virtual Function I/O" in its +initial implementation by Tom Lyon while as Cisco. We've since +outgrown the acronym, but it's catchy. + +[2] "safe" also depends upon a device being "well behaved". It's +possible for multi-function devices to have backdoors between +functions and even for single function devices to have alternative +access to things like PCI config space through MMIO registers. To +guard against the former we can include additional precautions in the +IOMMU driver to group multi-function PCI devices together +(iommu=group_mf). The latter we can't prevent, but the IOMMU should +still provide isolation. For PCI, SR-IOV Virtual Functions are the +best indicator of "well behaved", as these are designed for +virtualization usage models. + +[3] As always there are trade-offs to virtual machine device +assignment that are beyond the scope of VFIO. It's expected that +future IOMMU technologies will reduce some, but maybe not all, of +these trade-offs. + +[4] In this case the device is below a PCI bridge, so transactions +from either function of the device are indistinguishable to the iommu: + +-[0000:00]-+-1e.0-[06]--+-0d.0 + \-0d.1 + +00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90) diff --git a/Documentation/video4linux/CARDLIST.au0828 b/Documentation/video4linux/CARDLIST.au0828 index 7b59e95..a8a6575 100644 --- a/Documentation/video4linux/CARDLIST.au0828 +++ b/Documentation/video4linux/CARDLIST.au0828 @@ -3,4 +3,4 @@ 2 -> Hauppauge HVR850 (au0828) [2040:7240] 3 -> DViCO FusionHDTV USB (au0828) [0fe9:d620] 4 -> Hauppauge HVR950Q rev xxF8 (au0828) [2040:7201,2040:7211,2040:7281] - 5 -> Hauppauge Woodbury (au0828) [2040:8200] + 5 -> Hauppauge Woodbury (au0828) [05e1:0480,2040:8200] diff --git a/Documentation/video4linux/CARDLIST.bttv b/Documentation/video4linux/CARDLIST.bttv index b753906..581f666 100644 --- a/Documentation/video4linux/CARDLIST.bttv +++ b/Documentation/video4linux/CARDLIST.bttv @@ -159,3 +159,4 @@ 158 -> Geovision GV-800(S) (slave) [800b:763d,800c:763d,800d:763d] 159 -> ProVideo PV183 [1830:1540,1831:1540,1832:1540,1833:1540,1834:1540,1835:1540,1836:1540,1837:1540] 160 -> Tongwei Video Technology TD-3116 [f200:3116] +161 -> Aposonic W-DVR [0279:0228] diff --git a/Documentation/video4linux/CARDLIST.cx23885 b/Documentation/video4linux/CARDLIST.cx23885 index f316d18..652aecd 100644 --- a/Documentation/video4linux/CARDLIST.cx23885 +++ b/Documentation/video4linux/CARDLIST.cx23885 @@ -18,7 +18,7 @@ 17 -> NetUP Dual DVB-S2 CI [1b55:2a2c] 18 -> Hauppauge WinTV-HVR1270 [0070:2211] 19 -> Hauppauge WinTV-HVR1275 [0070:2215,0070:221d,0070:22f2] - 20 -> Hauppauge WinTV-HVR1255 [0070:2251,0070:2259,0070:22f1] + 20 -> Hauppauge WinTV-HVR1255 [0070:2251,0070:22f1] 21 -> Hauppauge WinTV-HVR1210 [0070:2291,0070:2295,0070:2299,0070:229d,0070:22f0,0070:22f3,0070:22f4,0070:22f5] 22 -> Mygica X8506 DMB-TH [14f1:8651] 23 -> Magic-Pro ProHDTV Extreme 2 [14f1:8657] @@ -33,3 +33,5 @@ 32 -> MPX-885 33 -> Mygica X8507 [14f1:8502] 34 -> TerraTec Cinergy T PCIe Dual [153b:117e] + 35 -> TeVii S471 [d471:9022] + 36 -> Hauppauge WinTV-HVR1255 [0070:2259] diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index 34f3b33..94d9025 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 @@ -188,3 +188,4 @@ 187 -> Beholder BeholdTV 503 FM [5ace:5030] 188 -> Sensoray 811/911 [6000:0811,6000:0911] 189 -> Kworld PC150-U [17de:a134] +190 -> Asus My Cinema PS3-100 [1043:48cd] diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 1f59052..89318be 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt @@ -594,6 +594,15 @@ You should also set these fields: unlocked_ioctl file operation is called this lock will be taken by the core and released afterwards. See the next section for more details. +- queue: a pointer to the struct vb2_queue associated with this device node. + If queue is non-NULL, and queue->lock is non-NULL, then queue->lock is + used for the queuing ioctls (VIDIOC_REQBUFS, CREATE_BUFS, QBUF, DQBUF, + QUERYBUF, PREPARE_BUF, STREAMON and STREAMOFF) instead of the lock above. + That way the vb2 queuing framework does not have to wait for other ioctls. + This queue pointer is also used by the vb2 helper functions to check for + queuing ownership (i.e. is the filehandle calling it allowed to do the + operation). + - prio: keeps track of the priorities. Used to implement VIDIOC_G/S_PRIORITY. If left to NULL, then it will use the struct v4l2_prio_state in v4l2_device. If you want to have a separate priority state per (group of) device node(s), @@ -647,47 +656,43 @@ manually set the struct media_entity type and name fields. A reference to the entity will be automatically acquired/released when the video device is opened/closed. -v4l2_file_operations and locking --------------------------------- - -You can set a pointer to a mutex_lock in struct video_device. Usually this -will be either a top-level mutex or a mutex per device node. By default this -lock will be used for unlocked_ioctl, but you can disable locking for -selected ioctls by calling: - - void v4l2_disable_ioctl_locking(struct video_device *vdev, unsigned int cmd); - -E.g.: v4l2_disable_ioctl_locking(vdev, VIDIOC_DQBUF); +ioctls and locking +------------------ -You have to call this before you register the video_device. +The V4L core provides optional locking services. The main service is the +lock field in struct video_device, which is a pointer to a mutex. If you set +this pointer, then that will be used by unlocked_ioctl to serialize all ioctls. -Particularly with USB drivers where certain commands such as setting controls -can take a long time you may want to do your own locking for the buffer queuing -ioctls. +If you are using the videobuf2 framework, then there is a second lock that you +can set: video_device->queue->lock. If set, then this lock will be used instead +of video_device->lock to serialize all queuing ioctls (see the previous section +for the full list of those ioctls). -If you want still finer-grained locking then you have to set mutex_lock to NULL -and do you own locking completely. +The advantage of using a different lock for the queuing ioctls is that for some +drivers (particularly USB drivers) certain commands such as setting controls +can take a long time, so you want to use a separate lock for the buffer queuing +ioctls. That way your VIDIOC_DQBUF doesn't stall because the driver is busy +changing the e.g. exposure of the webcam. -It is up to the driver developer to decide which method to use. However, if -your driver has high-latency operations (for example, changing the exposure -of a USB webcam might take a long time), then you might be better off with -doing your own locking if you want to allow the user to do other things with -the device while waiting for the high-latency command to finish. +Of course, you can always do all the locking yourself by leaving both lock +pointers at NULL. -If a lock is specified then all ioctl commands will be serialized on that -lock. If you use videobuf then you must pass the same lock to the videobuf -queue initialize function: if videobuf has to wait for a frame to arrive, then -it will temporarily unlock the lock and relock it afterwards. If your driver -also waits in the code, then you should do the same to allow other processes -to access the device node while the first process is waiting for something. +If you use the old videobuf then you must pass the video_device lock to the +videobuf queue initialize function: if videobuf has to wait for a frame to +arrive, then it will temporarily unlock the lock and relock it afterwards. If +your driver also waits in the code, then you should do the same to allow other +processes to access the device node while the first process is waiting for +something. In the case of videobuf2 you will need to implement the wait_prepare and -wait_finish callbacks to unlock/lock if applicable. In particular, if you use -the lock in struct video_device then you must unlock/lock this mutex in -wait_prepare and wait_finish. - -The implementation of a hotplug disconnect should also take the lock before -calling v4l2_device_disconnect. +wait_finish callbacks to unlock/lock if applicable. If you use the queue->lock +pointer, then you can use the helper functions vb2_ops_wait_prepare/finish. + +The implementation of a hotplug disconnect should also take the lock from +video_device before calling v4l2_device_disconnect. If you are also using +video_device->queue->lock, then you have to first lock video_device->queue->lock +followed by video_device->lock. That way you can be sure no ioctl is running +when you call v4l2_device_disconnect. video_device registration ------------------------- diff --git a/MAINTAINERS b/MAINTAINERS index 19f7050..94b823f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1789,15 +1789,16 @@ F: arch/powerpc/oprofile/*cell* F: arch/powerpc/platforms/cell/ CEPH DISTRIBUTED FILE SYSTEM CLIENT -M: Sage Weil +M: Sage Weil L: ceph-devel@vger.kernel.org -W: http://ceph.newdream.net/ +W: http://ceph.com/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git S: Supported F: Documentation/filesystems/ceph.txt F: fs/ceph F: net/ceph F: include/linux/ceph +F: include/linux/crush CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM: L: linux-usb@vger.kernel.org @@ -2750,6 +2751,7 @@ M: Jingoo Han L: linux-fbdev@vger.kernel.org S: Maintained F: drivers/video/exynos/exynos_dp* +F: include/video/exynos_dp* EXYNOS MIPI DISPLAY DRIVERS M: Inki Dae @@ -3155,8 +3157,7 @@ S: Maintained F: drivers/media/video/gspca/t613.c GSPCA USB WEBCAM DRIVER -M: Jean-Francois Moine -W: http://moinejf.free.fr +M: Hans de Goede L: linux-media@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git S: Maintained @@ -5639,10 +5640,12 @@ S: Supported F: arch/hexagon/ RADOS BLOCK DEVICE (RBD) -F: include/linux/qnxtypes.h -M: Yehuda Sadeh -M: Sage Weil +M: Yehuda Sadeh +M: Sage Weil +M: Alex Elder M: ceph-devel@vger.kernel.org +W: http://ceph.com/ +T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git S: Supported F: drivers/block/rbd.c F: drivers/block/rbd_types.h @@ -5679,7 +5682,7 @@ F: Documentation/blockdev/ramdisk.txt F: drivers/block/brd.c RANDOM NUMBER DRIVER -M: Matt Mackall +M: Theodore Ts'o" S: Maintained F: drivers/char/random.c @@ -7379,6 +7382,7 @@ W: http://user-mode-linux.sourceforge.net S: Maintained F: Documentation/virtual/uml/ F: arch/um/ +F: arch/x86/um/ F: fs/hostfs/ F: fs/hppfs/ @@ -7411,6 +7415,14 @@ S: Maintained F: Documentation/filesystems/vfat.txt F: fs/fat/ +VFIO DRIVER +M: Alex Williamson +L: kvm@vger.kernel.org +S: Maintained +F: Documentation/vfio.txt +F: drivers/vfio/ +F: include/linux/vfio.h + VIDEOBUF2 FRAMEWORK M: Pawel Osciak M: Marek Szyprowski diff --git a/Makefile b/Makefile index 8e4c0a7..ddf5be9 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 -PATCHLEVEL = 5 +PATCHLEVEL = 6 SUBLEVEL = 0 -EXTRAVERSION = +EXTRAVERSION = -rc1 NAME = Saber-toothed Squirrel # *DOCUMENTATION* diff --git a/arch/Kconfig b/arch/Kconfig index 8c3d957..72f2fa1 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -248,7 +248,14 @@ config HAVE_CMPXCHG_LOCAL config HAVE_CMPXCHG_DOUBLE bool +config ARCH_WANT_IPC_PARSE_VERSION + bool + +config ARCH_WANT_COMPAT_IPC_PARSE_VERSION + bool + config ARCH_WANT_OLD_COMPAT_IPC + select ARCH_WANT_COMPAT_IPC_PARSE_VERSION bool config HAVE_ARCH_SECCOMP_FILTER diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 3de74c9..d5b9b5e 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -14,6 +14,7 @@ config ALPHA select AUTO_IRQ_AFFINITY if SMP select GENERIC_IRQ_SHOW select ARCH_WANT_OPTIONAL_GPIOLIB + select ARCH_WANT_IPC_PARSE_VERSION select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_SMP_IDLE_THREAD select GENERIC_CMOS_UPDATE diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h index d1f23b7..633b23b 100644 --- a/arch/alpha/include/asm/unistd.h +++ b/arch/alpha/include/asm/unistd.h @@ -470,7 +470,6 @@ #define NR_SYSCALLS 504 -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_GETHOSTNAME diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c index 0435921d..c803fc7 100644 --- a/arch/alpha/kernel/smc37c669.c +++ b/arch/alpha/kernel/smc37c669.c @@ -933,18 +933,6 @@ void SMC37c669_display_device_info( * *-- */ -#if 0 -/* $INCLUDE_OPTIONS$ */ -#include "cp$inc:platform_io.h" -/* $INCLUDE_OPTIONS_END$ */ -#include "cp$src:common.h" -#include "cp$inc:prototypes.h" -#include "cp$src:kernel_def.h" -#include "cp$src:msg_def.h" -#include "cp$src:smcc669_def.h" -/* Platform-specific includes */ -#include "cp$src:platform.h" -#endif #ifndef TRUE #define TRUE 1 diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 6b86bb9..e91c7cd 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -11,6 +11,7 @@ config ARM select RTC_LIB select SYS_SUPPORTS_APM_EMULATION select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI) + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select HAVE_OPROFILE if (HAVE_PERF_EVENTS) select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL select HAVE_ARCH_KGDB @@ -38,6 +39,7 @@ config ARM select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_IRQ_PROBE + select ARCH_WANT_IPC_PARSE_VERSION select HARDIRQS_SW_RESEND select CPU_PM if (SUSPEND || CPU_IDLE) select GENERIC_PCI_IOMAP @@ -1149,6 +1151,7 @@ config PLAT_ORION bool select CLKSRC_MMIO select GENERIC_IRQ_CHIP + select IRQ_DOMAIN select COMMON_CLK config PLAT_PXA diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi index e1fa7e6..71d6b5d 100644 --- a/arch/arm/boot/dts/armada-xp.dtsi +++ b/arch/arm/boot/dts/armada-xp.dtsi @@ -12,7 +12,7 @@ * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. * - * Contains definitions specific to the Armada 370 SoC that are not + * Contains definitions specific to the Armada XP SoC that are not * common to all Armada SoCs. */ diff --git a/arch/arm/boot/dts/kirkwood-dns320.dts b/arch/arm/boot/dts/kirkwood-dns320.dts index 9a33077..5bb0bf3 100644 --- a/arch/arm/boot/dts/kirkwood-dns320.dts +++ b/arch/arm/boot/dts/kirkwood-dns320.dts @@ -1,6 +1,6 @@ /dts-v1/; -/include/ "kirkwood.dtsi" +/include/ "kirkwood-dnskw.dtsi" / { model = "D-Link DNS-320 NAS (Rev A1)"; @@ -15,6 +15,31 @@ bootargs = "console=ttyS0,115200n8 earlyprintk"; }; + gpio-leds { + compatible = "gpio-leds"; + blue-power { + label = "dns320:blue:power"; + gpios = <&gpio0 26 1>; /* GPIO 26 Active Low */ + linux,default-trigger = "default-on"; + }; + blue-usb { + label = "dns320:blue:usb"; + gpios = <&gpio1 11 1>; /* GPIO 43 Active Low */ + }; + orange-l_hdd { + label = "dns320:orange:l_hdd"; + gpios = <&gpio0 28 1>; /* GPIO 28 Active Low */ + }; + orange-r_hdd { + label = "dns320:orange:r_hdd"; + gpios = <&gpio0 27 1>; /* GPIO 27 Active Low */ + }; + orange-usb { + label = "dns320:orange:usb"; + gpios = <&gpio1 3 1>; /* GPIO 35 Active Low */ + }; + }; + ocp@f1000000 { serial@12000 { clock-frequency = <166666667>; @@ -25,40 +50,5 @@ clock-frequency = <166666667>; status = "okay"; }; - - nand@3000000 { - status = "okay"; - - partition@0 { - label = "u-boot"; - reg = <0x0000000 0x100000>; - read-only; - }; - - partition@100000 { - label = "uImage"; - reg = <0x0100000 0x500000>; - }; - - partition@600000 { - label = "ramdisk"; - reg = <0x0600000 0x500000>; - }; - - partition@b00000 { - label = "image"; - reg = <0x0b00000 0x6600000>; - }; - - partition@7100000 { - label = "mini firmware"; - reg = <0x7100000 0xa00000>; - }; - - partition@7b00000 { - label = "config"; - reg = <0x7b00000 0x500000>; - }; - }; }; }; diff --git a/arch/arm/boot/dts/kirkwood-dns325.dts b/arch/arm/boot/dts/kirkwood-dns325.dts index 16734c1..d430713 100644 --- a/arch/arm/boot/dts/kirkwood-dns325.dts +++ b/arch/arm/boot/dts/kirkwood-dns325.dts @@ -1,6 +1,6 @@ /dts-v1/; -/include/ "kirkwood.dtsi" +/include/ "kirkwood-dnskw.dtsi" / { model = "D-Link DNS-325 NAS (Rev A1)"; @@ -15,45 +15,43 @@ bootargs = "console=ttyS0,115200n8 earlyprintk"; }; - ocp@f1000000 { - serial@12000 { - clock-frequency = <200000000>; - status = "okay"; + gpio-leds { + compatible = "gpio-leds"; + white-power { + label = "dns325:white:power"; + gpios = <&gpio0 26 1>; /* GPIO 26 Active Low */ + linux,default-trigger = "default-on"; + }; + white-usb { + label = "dns325:white:usb"; + gpios = <&gpio1 11 1>; /* GPIO 43 Active Low */ + }; + red-l_hdd { + label = "dns325:red:l_hdd"; + gpios = <&gpio0 28 1>; /* GPIO 28 Active Low */ }; + red-r_hdd { + label = "dns325:red:r_hdd"; + gpios = <&gpio0 27 1>; /* GPIO 27 Active Low */ + }; + red-usb { + label = "dns325:red:usb"; + gpios = <&gpio0 29 1>; /* GPIO 29 Active Low */ + }; + }; - nand@3000000 { + ocp@f1000000 { + i2c@11000 { status = "okay"; - partition@0 { - label = "u-boot"; - reg = <0x0000000 0x100000>; - read-only; - }; - - partition@100000 { - label = "uImage"; - reg = <0x0100000 0x500000>; - }; - - partition@600000 { - label = "ramdisk"; - reg = <0x0600000 0x500000>; - }; - - partition@b00000 { - label = "image"; - reg = <0x0b00000 0x6600000>; - }; - - partition@7100000 { - label = "mini firmware"; - reg = <0x7100000 0xa00000>; - }; - - partition@7b00000 { - label = "config"; - reg = <0x7b00000 0x500000>; + lm75: lm75@48 { + compatible = "national,lm75"; + reg = <0x48>; }; }; + serial@12000 { + clock-frequency = <200000000>; + status = "okay"; + }; }; }; diff --git a/arch/arm/boot/dts/kirkwood-dnskw.dtsi b/arch/arm/boot/dts/kirkwood-dnskw.dtsi new file mode 100644 index 0000000..7408655 --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-dnskw.dtsi @@ -0,0 +1,69 @@ +/include/ "kirkwood.dtsi" + +/ { + model = "D-Link DNS NASes (kirkwood-based)"; + compatible = "dlink,dns-kirkwood", "marvell,kirkwood-88f6281", "marvell,kirkwood"; + + gpio_keys { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + button@1 { + label = "Power button"; + linux,code = <116>; + gpios = <&gpio1 2 1>; + }; + button@2 { + label = "USB unmount button"; + linux,code = <161>; + gpios = <&gpio1 15 1>; + }; + button@3 { + label = "Reset button"; + linux,code = <0x198>; + gpios = <&gpio1 16 1>; + }; + }; + + ocp@f1000000 { + sata@80000 { + status = "okay"; + nr-ports = <2>; + }; + + nand@3000000 { + status = "okay"; + + partition@0 { + label = "u-boot"; + reg = <0x0000000 0x100000>; + read-only; + }; + + partition@100000 { + label = "uImage"; + reg = <0x0100000 0x500000>; + }; + + partition@600000 { + label = "ramdisk"; + reg = <0x0600000 0x500000>; + }; + + partition@b00000 { + label = "image"; + reg = <0x0b00000 0x6600000>; + }; + + partition@7100000 { + label = "mini firmware"; + reg = <0x7100000 0xa00000>; + }; + + partition@7b00000 { + label = "config"; + reg = <0x7b00000 0x500000>; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-dreamplug.dts b/arch/arm/boot/dts/kirkwood-dreamplug.dts index 78b0f06..26e281f 100644 --- a/arch/arm/boot/dts/kirkwood-dreamplug.dts +++ b/arch/arm/boot/dts/kirkwood-dreamplug.dts @@ -20,5 +20,55 @@ clock-frequency = <200000000>; status = "ok"; }; + + spi@10600 { + status = "okay"; + + m25p40@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "mx25l1606e"; + reg = <0>; + spi-max-frequency = <50000000>; + mode = <0>; + + partition@0 { + reg = <0x0 0x80000>; + label = "u-boot"; + }; + + partition@100000 { + reg = <0x100000 0x10000>; + label = "u-boot env"; + }; + + partition@180000 { + reg = <0x180000 0x10000>; + label = "dtb"; + }; + }; + }; + + sata@80000 { + status = "okay"; + nr-ports = <1>; + }; + }; + + gpio-leds { + compatible = "gpio-leds"; + + bluetooth { + label = "dreamplug:blue:bluetooth"; + gpios = <&gpio1 15 1>; + }; + wifi { + label = "dreamplug:green:wifi"; + gpios = <&gpio1 16 1>; + }; + wifi-ap { + label = "dreamplug:green:wifi_ap"; + gpios = <&gpio1 17 1>; + }; }; }; diff --git a/arch/arm/boot/dts/kirkwood-goflexnet.dts b/arch/arm/boot/dts/kirkwood-goflexnet.dts new file mode 100644 index 0000000..7c8238f --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-goflexnet.dts @@ -0,0 +1,99 @@ +/dts-v1/; + +/include/ "kirkwood.dtsi" + +/ { + model = "Seagate GoFlex Net"; + compatible = "seagate,goflexnet", "marvell,kirkwood-88f6281", "marvell,kirkwood"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x8000000>; + }; + + chosen { + bootargs = "console=ttyS0,115200n8 earlyprintk root=/dev/sda1 rootdelay=10"; + }; + + ocp@f1000000 { + serial@12000 { + clock-frequency = <200000000>; + status = "ok"; + }; + + nand@3000000 { + status = "okay"; + + partition@0 { + label = "u-boot"; + reg = <0x0000000 0x100000>; + read-only; + }; + + partition@100000 { + label = "uImage"; + reg = <0x0100000 0x400000>; + }; + + partition@500000 { + label = "pogoplug"; + reg = <0x0500000 0x2000000>; + }; + + partition@2500000 { + label = "root"; + reg = <0x02500000 0xd800000>; + }; + }; + sata@80000 { + status = "okay"; + nr-ports = <2>; + }; + + }; + gpio-leds { + compatible = "gpio-leds"; + + health { + label = "status:green:health"; + gpios = <&gpio1 14 1>; + linux,default-trigger = "default-on"; + }; + fault { + label = "status:orange:fault"; + gpios = <&gpio1 15 1>; + }; + left0 { + label = "status:white:left0"; + gpios = <&gpio1 10 0>; + }; + left1 { + label = "status:white:left1"; + gpios = <&gpio1 11 0>; + }; + left2 { + label = "status:white:left2"; + gpios = <&gpio1 12 0>; + }; + left3 { + label = "status:white:left3"; + gpios = <&gpio1 13 0>; + }; + right0 { + label = "status:white:right0"; + gpios = <&gpio1 6 0>; + }; + right1 { + label = "status:white:right1"; + gpios = <&gpio1 7 0>; + }; + right2 { + label = "status:white:right2"; + gpios = <&gpio1 8 0>; + }; + right3 { + label = "status:white:right3"; + gpios = <&gpio1 9 0>; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-ib62x0.dts b/arch/arm/boot/dts/kirkwood-ib62x0.dts index f59dcf6..66794ed 100644 --- a/arch/arm/boot/dts/kirkwood-ib62x0.dts +++ b/arch/arm/boot/dts/kirkwood-ib62x0.dts @@ -21,6 +21,11 @@ status = "okay"; }; + sata@80000 { + status = "okay"; + nr-ports = <2>; + }; + nand@3000000 { status = "okay"; @@ -41,4 +46,37 @@ }; }; + + gpio_keys { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + button@1 { + label = "USB Copy"; + linux,code = <133>; + gpios = <&gpio0 29 1>; + }; + button@2 { + label = "Reset"; + linux,code = <0x198>; + gpios = <&gpio0 28 1>; + }; + }; + gpio-leds { + compatible = "gpio-leds"; + + green-os { + label = "ib62x0:green:os"; + gpios = <&gpio0 25 0>; + linux,default-trigger = "default-on"; + }; + red-os { + label = "ib62x0:red:os"; + gpios = <&gpio0 22 0>; + }; + usb-copy { + label = "ib62x0:red:usb_copy"; + gpios = <&gpio0 27 0>; + }; + }; }; diff --git a/arch/arm/boot/dts/kirkwood-iconnect.dts b/arch/arm/boot/dts/kirkwood-iconnect.dts index 026a1f8..52d9470 100644 --- a/arch/arm/boot/dts/kirkwood-iconnect.dts +++ b/arch/arm/boot/dts/kirkwood-iconnect.dts @@ -18,9 +18,51 @@ }; ocp@f1000000 { + i2c@11000 { + status = "okay"; + + lm63: lm63@4c { + compatible = "national,lm63"; + reg = <0x4c>; + }; + }; serial@12000 { clock-frequency = <200000000>; status = "ok"; }; }; + gpio-leds { + compatible = "gpio-leds"; + + led-level { + label = "led_level"; + gpios = <&gpio1 9 0>; + linux,default-trigger = "default-on"; + }; + power-blue { + label = "power:blue"; + gpios = <&gpio1 11 0>; + linux,default-trigger = "timer"; + }; + usb1 { + label = "usb1:blue"; + gpios = <&gpio1 12 0>; + }; + usb2 { + label = "usb2:blue"; + gpios = <&gpio1 13 0>; + }; + usb3 { + label = "usb3:blue"; + gpios = <&gpio1 14 0>; + }; + usb4 { + label = "usb4:blue"; + gpios = <&gpio1 15 0>; + }; + otb { + label = "otb:blue"; + gpios = <&gpio1 16 0>; + }; + }; }; diff --git a/arch/arm/boot/dts/kirkwood-lschlv2.dts b/arch/arm/boot/dts/kirkwood-lschlv2.dts new file mode 100644 index 0000000..9510c9e --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-lschlv2.dts @@ -0,0 +1,20 @@ +/dts-v1/; + +/include/ "kirkwood-lsxl.dtsi" + +/ { + model = "Buffalo Linkstation LS-CHLv2"; + compatible = "buffalo,lschlv2", "buffalo,lsxl", "marvell,kirkwood-88f6281", "marvell,kirkwood"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x4000000>; + }; + + ocp@f1000000 { + serial@12000 { + clock-frequency = <166666667>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-lsxhl.dts b/arch/arm/boot/dts/kirkwood-lsxhl.dts new file mode 100644 index 0000000..739019c --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-lsxhl.dts @@ -0,0 +1,20 @@ +/dts-v1/; + +/include/ "kirkwood-lsxl.dtsi" + +/ { + model = "Buffalo Linkstation LS-XHL"; + compatible = "buffalo,lsxhl", "buffalo,lsxl", "marvell,kirkwood-88f6281", "marvell,kirkwood"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x10000000>; + }; + + ocp@f1000000 { + serial@12000 { + clock-frequency = <200000000>; + status = "okay"; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-lsxl.dtsi b/arch/arm/boot/dts/kirkwood-lsxl.dtsi new file mode 100644 index 0000000..8ac51c0 --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-lsxl.dtsi @@ -0,0 +1,95 @@ +/include/ "kirkwood.dtsi" + +/ { + chosen { + bootargs = "console=ttyS0,115200n8 earlyprintk"; + }; + + ocp@f1000000 { + sata@80000 { + status = "okay"; + nr-ports = <1>; + }; + + spi@10600 { + status = "okay"; + + m25p40@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "m25p40"; + reg = <0>; + spi-max-frequency = <25000000>; + mode = <0>; + + partition@0 { + reg = <0x0 0x60000>; + label = "uboot"; + read-only; + }; + + partition@60000 { + reg = <0x60000 0x10000>; + label = "dtb"; + read-only; + }; + + partition@70000 { + reg = <0x70000 0x10000>; + label = "uboot_env"; + }; + }; + }; + }; + + gpio_keys { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + button@1 { + label = "Function Button"; + linux,code = <132>; + gpios = <&gpio1 9 1>; + }; + button@2 { + label = "Power-on Switch"; + linux,code = <116>; + gpios = <&gpio1 10 1>; + }; + button@3 { + label = "Power-auto Switch"; + linux,code = <142>; + gpios = <&gpio1 11 1>; + }; + }; + + gpio_leds { + compatible = "gpio-leds"; + + led@1 { + label = "lschlv2:blue:func"; + gpios = <&gpio1 4 1>; + }; + + led@2 { + label = "lschlv2:red:alarm"; + gpios = <&gpio1 5 1>; + }; + + led@3 { + label = "lschlv2:amber:info"; + gpios = <&gpio1 6 1>; + }; + + led@4 { + label = "lschlv2:blue:power"; + gpios = <&gpio1 7 1>; + linux,default-trigger = "default-on"; + }; + + led@5 { + label = "lschlv2:red:func"; + gpios = <&gpio1 16 1>; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-ts219-6281.dts b/arch/arm/boot/dts/kirkwood-ts219-6281.dts new file mode 100644 index 0000000..ccbf327 --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-ts219-6281.dts @@ -0,0 +1,21 @@ +/dts-v1/; + +/include/ "kirkwood-ts219.dtsi" + +/ { + gpio_keys { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + button@1 { + label = "USB Copy"; + linux,code = <133>; + gpios = <&gpio0 15 1>; + }; + button@2 { + label = "Reset"; + linux,code = <0x198>; + gpios = <&gpio0 16 1>; + }; + }; +}; \ No newline at end of file diff --git a/arch/arm/boot/dts/kirkwood-ts219-6282.dts b/arch/arm/boot/dts/kirkwood-ts219-6282.dts new file mode 100644 index 0000000..fbe9932 --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-ts219-6282.dts @@ -0,0 +1,21 @@ +/dts-v1/; + +/include/ "kirkwood-ts219.dtsi" + +/ { + gpio_keys { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + button@1 { + label = "USB Copy"; + linux,code = <133>; + gpios = <&gpio1 11 1>; + }; + button@2 { + label = "Reset"; + linux,code = <0x198>; + gpios = <&gpio1 5 1>; + }; + }; +}; \ No newline at end of file diff --git a/arch/arm/boot/dts/kirkwood-ts219.dtsi b/arch/arm/boot/dts/kirkwood-ts219.dtsi new file mode 100644 index 0000000..64ea27c --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-ts219.dtsi @@ -0,0 +1,78 @@ +/include/ "kirkwood.dtsi" + +/ { + model = "QNAP TS219 family"; + compatible = "qnap,ts219", "marvell,kirkwood"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x20000000>; + }; + + chosen { + bootargs = "console=ttyS0,115200n8"; + }; + + ocp@f1000000 { + i2c@11000 { + status = "okay"; + clock-frequency = <400000>; + + s35390a: s35390a@30 { + compatible = "s35390a"; + reg = <0x30>; + }; + }; + serial@12000 { + clock-frequency = <200000000>; + status = "okay"; + }; + serial@12100 { + clock-frequency = <200000000>; + status = "okay"; + }; + spi@10600 { + status = "okay"; + + m25p128@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "m25p128"; + reg = <0>; + spi-max-frequency = <20000000>; + mode = <0>; + + partition@0000000 { + reg = <0x00000000 0x00080000>; + label = "U-Boot"; + }; + + partition@00200000 { + reg = <0x00200000 0x00200000>; + label = "Kernel"; + }; + + partition@00400000 { + reg = <0x00400000 0x00900000>; + label = "RootFS1"; + }; + partition@00d00000 { + reg = <0x00d00000 0x00300000>; + label = "RootFS2"; + }; + partition@00040000 { + reg = <0x00080000 0x00040000>; + label = "U-Boot Config"; + }; + partition@000c0000 { + reg = <0x000c0000 0x00140000>; + label = "NAS Config"; + }; + }; + }; + sata@80000 { + status = "okay"; + nr-ports = <2>; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi index f95dbc1..cef9616 100644 --- a/arch/arm/boot/dts/kirkwood.dtsi +++ b/arch/arm/boot/dts/kirkwood.dtsi @@ -2,6 +2,15 @@ / { compatible = "marvell,kirkwood"; + interrupt-parent = <&intc>; + + intc: interrupt-controller { + compatible = "marvell,orion-intc", "marvell,intc"; + interrupt-controller; + #interrupt-cells = <1>; + reg = <0xf1020204 0x04>, + <0xf1020214 0x04>; + }; ocp@f1000000 { compatible = "simple-bus"; @@ -9,6 +18,24 @@ #address-cells = <1>; #size-cells = <1>; + gpio0: gpio@10100 { + compatible = "marvell,orion-gpio"; + #gpio-cells = <2>; + gpio-controller; + reg = <0x10100 0x40>; + ngpio = <32>; + interrupts = <35>, <36>, <37>, <38>; + }; + + gpio1: gpio@10140 { + compatible = "marvell,orion-gpio"; + #gpio-cells = <2>; + gpio-controller; + reg = <0x10140 0x40>; + ngpio = <18>; + interrupts = <39>, <40>, <41>; + }; + serial@12000 { compatible = "ns16550a"; reg = <0x12000 0x100>; @@ -33,6 +60,29 @@ interrupts = <53>; }; + spi@10600 { + compatible = "marvell,orion-spi"; + #address-cells = <1>; + #size-cells = <0>; + cell-index = <0>; + interrupts = <23>; + reg = <0x10600 0x28>; + status = "disabled"; + }; + + wdt@20300 { + compatible = "marvell,orion-wdt"; + reg = <0x20300 0x28>; + status = "okay"; + }; + + sata@80000 { + compatible = "marvell,orion-sata"; + reg = <0x80000 0x5000>; + interrupts = <21>; + status = "disabled"; + }; + nand@3000000 { #address-cells = <1>; #size-cells = <1>; @@ -45,5 +95,15 @@ /* set partition map and/or chip-delay in board dts */ status = "disabled"; }; + + i2c@11000 { + compatible = "marvell,mv64xxx-i2c"; + reg = <0x11000 0x20>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <29>; + clock-frequency = <100000>; + status = "disabled"; + }; }; }; diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index b152de7..e58edc3 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -193,6 +193,8 @@ CONFIG_MMC_OMAP_HS=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_TWL92330=y CONFIG_RTC_DRV_TWL4030=y +CONFIG_DMADEVICES=y +CONFIG_DMA_OMAP=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_FS_XATTR is not set diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 004c1bc..e4448e1 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -215,7 +215,9 @@ static inline void vivt_flush_cache_mm(struct mm_struct *mm) static inline void vivt_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) + struct mm_struct *mm = vma->vm_mm; + + if (!mm || cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) __cpuc_flush_user_range(start & PAGE_MASK, PAGE_ALIGN(end), vma->vm_flags); } @@ -223,7 +225,9 @@ vivt_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned static inline void vivt_flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn) { - if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) { + struct mm_struct *mm = vma->vm_mm; + + if (!mm || cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) { unsigned long addr = user_addr & PAGE_MASK; __cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags); } diff --git a/arch/arm/include/asm/mutex.h b/arch/arm/include/asm/mutex.h index 93226cf..b1479fd 100644 --- a/arch/arm/include/asm/mutex.h +++ b/arch/arm/include/asm/mutex.h @@ -7,121 +7,10 @@ */ #ifndef _ASM_MUTEX_H #define _ASM_MUTEX_H - -#if __LINUX_ARM_ARCH__ < 6 -/* On pre-ARMv6 hardware the swp based implementation is the most efficient. */ -# include -#else - /* - * Attempting to lock a mutex on ARMv6+ can be done with a bastardized - * atomic decrement (it is not a reliable atomic decrement but it satisfies - * the defined semantics for our purpose, while being smaller and faster - * than a real atomic decrement or atomic swap. The idea is to attempt - * decrementing the lock value only once. If once decremented it isn't zero, - * or if its store-back fails due to a dispute on the exclusive store, we - * simply bail out immediately through the slow path where the lock will be - * reattempted until it succeeds. + * On pre-ARMv6 hardware this results in a swp-based implementation, + * which is the most efficient. For ARMv6+, we emit a pair of exclusive + * accesses instead. */ -static inline void -__mutex_fastpath_lock(atomic_t *count, void (*fail_fn)(atomic_t *)) -{ - int __ex_flag, __res; - - __asm__ ( - - "ldrex %0, [%2] \n\t" - "sub %0, %0, #1 \n\t" - "strex %1, %0, [%2] " - - : "=&r" (__res), "=&r" (__ex_flag) - : "r" (&(count)->counter) - : "cc","memory" ); - - __res |= __ex_flag; - if (unlikely(__res != 0)) - fail_fn(count); -} - -static inline int -__mutex_fastpath_lock_retval(atomic_t *count, int (*fail_fn)(atomic_t *)) -{ - int __ex_flag, __res; - - __asm__ ( - - "ldrex %0, [%2] \n\t" - "sub %0, %0, #1 \n\t" - "strex %1, %0, [%2] " - - : "=&r" (__res), "=&r" (__ex_flag) - : "r" (&(count)->counter) - : "cc","memory" ); - - __res |= __ex_flag; - if (unlikely(__res != 0)) - __res = fail_fn(count); - return __res; -} - -/* - * Same trick is used for the unlock fast path. However the original value, - * rather than the result, is used to test for success in order to have - * better generated assembly. - */ -static inline void -__mutex_fastpath_unlock(atomic_t *count, void (*fail_fn)(atomic_t *)) -{ - int __ex_flag, __res, __orig; - - __asm__ ( - - "ldrex %0, [%3] \n\t" - "add %1, %0, #1 \n\t" - "strex %2, %1, [%3] " - - : "=&r" (__orig), "=&r" (__res), "=&r" (__ex_flag) - : "r" (&(count)->counter) - : "cc","memory" ); - - __orig |= __ex_flag; - if (unlikely(__orig != 0)) - fail_fn(count); -} - -/* - * If the unlock was done on a contended lock, or if the unlock simply fails - * then the mutex remains locked. - */ -#define __mutex_slowpath_needs_to_unlock() 1 - -/* - * For __mutex_fastpath_trylock we use another construct which could be - * described as a "single value cmpxchg". - * - * This provides the needed trylock semantics like cmpxchg would, but it is - * lighter and less generic than a true cmpxchg implementation. - */ -static inline int -__mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *)) -{ - int __ex_flag, __res, __orig; - - __asm__ ( - - "1: ldrex %0, [%3] \n\t" - "subs %1, %0, #1 \n\t" - "strexeq %2, %1, [%3] \n\t" - "movlt %0, #0 \n\t" - "cmpeq %2, #0 \n\t" - "bgt 1b " - - : "=&r" (__orig), "=&r" (__res), "=&r" (__ex_flag) - : "r" (&count->counter) - : "cc", "memory" ); - - return __orig; -} - -#endif +#include #endif diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h index 23ebc0c..24d284a 100644 --- a/arch/arm/include/asm/setup.h +++ b/arch/arm/include/asm/setup.h @@ -196,7 +196,7 @@ static const struct tagtable __tagtable_##fn __tag = { tag, fn } struct membank { phys_addr_t start; - unsigned long size; + phys_addr_t size; unsigned int highmem; }; @@ -217,7 +217,7 @@ extern struct meminfo meminfo; #define bank_phys_end(bank) ((bank)->start + (bank)->size) #define bank_phys_size(bank) (bank)->size -extern int arm_add_memory(phys_addr_t start, unsigned long size); +extern int arm_add_memory(phys_addr_t start, phys_addr_t size); extern void early_print(const char *str, ...); extern void dump_machine_table(void); diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index 512cd14..0cab47d 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -446,7 +446,6 @@ #ifdef __KERNEL__ -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_GETHOSTNAME #define __ARCH_WANT_SYS_PAUSE diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 0d1851c..0f82098 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -244,6 +244,19 @@ svc_preempt: b 1b #endif +__und_fault: + @ Correct the PC such that it is pointing at the instruction + @ which caused the fault. If the faulting instruction was ARM + @ the PC will be pointing at the next instruction, and have to + @ subtract 4. Otherwise, it is Thumb, and the PC will be + @ pointing at the second half of the Thumb instruction. We + @ have to subtract 2. + ldr r2, [r0, #S_PC] + sub r2, r2, r1 + str r2, [r0, #S_PC] + b do_undefinstr +ENDPROC(__und_fault) + .align 5 __und_svc: #ifdef CONFIG_KPROBES @@ -261,25 +274,32 @@ __und_svc: @ @ r0 - instruction @ -#ifndef CONFIG_THUMB2_KERNEL +#ifndef CONFIG_THUMB2_KERNEL ldr r0, [r4, #-4] #else + mov r1, #2 ldrh r0, [r4, #-2] @ Thumb instruction at LR - 2 cmp r0, #0xe800 @ 32-bit instruction if xx >= 0 - ldrhhs r9, [r4] @ bottom 16 bits - orrhs r0, r9, r0, lsl #16 + blo __und_svc_fault + ldrh r9, [r4] @ bottom 16 bits + add r4, r4, #2 + str r4, [sp, #S_PC] + orr r0, r9, r0, lsl #16 #endif - adr r9, BSYM(1f) + adr r9, BSYM(__und_svc_finish) mov r2, r4 bl call_fpe + mov r1, #4 @ PC correction to apply +__und_svc_fault: mov r0, sp @ struct pt_regs *regs - bl do_undefinstr + bl __und_fault @ @ IRQs off again before pulling preserved data off the stack @ -1: disable_irq_notrace +__und_svc_finish: + disable_irq_notrace @ @ restore SPSR and restart the instruction @@ -423,25 +443,33 @@ __und_usr: mov r2, r4 mov r3, r5 + @ r2 = regs->ARM_pc, which is either 2 or 4 bytes ahead of the + @ faulting instruction depending on Thumb mode. + @ r3 = regs->ARM_cpsr @ - @ fall through to the emulation code, which returns using r9 if - @ it has emulated the instruction, or the more conventional lr - @ if we are to treat this as a real undefined instruction - @ - @ r0 - instruction + @ The emulation code returns using r9 if it has emulated the + @ instruction, or the more conventional lr if we are to treat + @ this as a real undefined instruction @ adr r9, BSYM(ret_from_exception) - adr lr, BSYM(__und_usr_unknown) + tst r3, #PSR_T_BIT @ Thumb mode? - itet eq @ explicit IT needed for the 1f label - subeq r4, r2, #4 @ ARM instr at LR - 4 - subne r4, r2, #2 @ Thumb instr at LR - 2 -1: ldreqt r0, [r4] + bne __und_usr_thumb + sub r4, r2, #4 @ ARM instr at LR - 4 +1: ldrt r0, [r4] #ifdef CONFIG_CPU_ENDIAN_BE8 - reveq r0, r0 @ little endian instruction + rev r0, r0 @ little endian instruction #endif - beq call_fpe + @ r0 = 32-bit ARM instruction which caused the exception + @ r2 = PC value for the following instruction (:= regs->ARM_pc) + @ r4 = PC value for the faulting instruction + @ lr = 32-bit undefined instruction function + adr lr, BSYM(__und_usr_fault_32) + b call_fpe + +__und_usr_thumb: @ Thumb instruction + sub r4, r2, #2 @ First half of thumb instr at LR - 2 #if CONFIG_ARM_THUMB && __LINUX_ARM_ARCH__ >= 6 && CONFIG_CPU_V7 /* * Thumb-2 instruction handling. Note that because pre-v6 and >= v6 platforms @@ -455,7 +483,7 @@ __und_usr: ldr r5, .LCcpu_architecture ldr r5, [r5] cmp r5, #CPU_ARCH_ARMv7 - blo __und_usr_unknown + blo __und_usr_fault_16 @ 16bit undefined instruction /* * The following code won't get run unless the running CPU really is v7, so * coding round the lack of ldrht on older arches is pointless. Temporarily @@ -463,15 +491,18 @@ __und_usr: */ .arch armv6t2 #endif -2: - ARM( ldrht r5, [r4], #2 ) - THUMB( ldrht r5, [r4] ) - THUMB( add r4, r4, #2 ) +2: ldrht r5, [r4] cmp r5, #0xe800 @ 32bit instruction if xx != 0 - blo __und_usr_unknown -3: ldrht r0, [r4] + blo __und_usr_fault_16 @ 16bit undefined instruction +3: ldrht r0, [r2] add r2, r2, #2 @ r2 is PC + 2, make it PC + 4 + str r2, [sp, #S_PC] @ it's a 2x16bit instr, update orr r0, r0, r5, lsl #16 + adr lr, BSYM(__und_usr_fault_32) + @ r0 = the two 16-bit Thumb instructions which caused the exception + @ r2 = PC value for the following Thumb instruction (:= regs->ARM_pc) + @ r4 = PC value for the first 16-bit Thumb instruction + @ lr = 32bit undefined instruction function #if __LINUX_ARM_ARCH__ < 7 /* If the target arch was overridden, change it back: */ @@ -482,17 +513,13 @@ __und_usr: #endif #endif /* __LINUX_ARM_ARCH__ < 7 */ #else /* !(CONFIG_ARM_THUMB && __LINUX_ARM_ARCH__ >= 6 && CONFIG_CPU_V7) */ - b __und_usr_unknown + b __und_usr_fault_16 #endif - UNWIND(.fnend ) + UNWIND(.fnend) ENDPROC(__und_usr) - @ - @ fallthrough to call_fpe - @ - /* - * The out of line fixup for the ldrt above. + * The out of line fixup for the ldrt instructions above. */ .pushsection .fixup, "ax" .align 2 @@ -524,11 +551,12 @@ ENDPROC(__und_usr) * NEON handler code. * * Emulators may wish to make use of the following registers: - * r0 = instruction opcode. - * r2 = PC+4 + * r0 = instruction opcode (32-bit ARM or two 16-bit Thumb) + * r2 = PC value to resume execution after successful emulation * r9 = normal "successful" return address - * r10 = this threads thread_info structure. + * r10 = this threads thread_info structure * lr = unrecognised instruction return address + * IRQs disabled, FIQs enabled. */ @ @ Fall-through from Thumb-2 __und_usr @@ -659,12 +687,17 @@ ENTRY(no_fp) mov pc, lr ENDPROC(no_fp) -__und_usr_unknown: - enable_irq +__und_usr_fault_32: + mov r1, #4 + b 1f +__und_usr_fault_16: + mov r1, #2 +1: enable_irq mov r0, sp adr lr, BSYM(ret_from_exception) - b do_undefinstr -ENDPROC(__und_usr_unknown) + b __und_fault +ENDPROC(__und_usr_fault_32) +ENDPROC(__und_usr_fault_16) .align 5 __pabt_usr: diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 49d9f93..978eac5 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -51,23 +51,15 @@ ret_fast_syscall: fast_work_pending: str r0, [sp, #S_R0+S_OFF]! @ returned r0 work_pending: - tst r1, #_TIF_NEED_RESCHED - bne work_resched - /* - * TIF_SIGPENDING or TIF_NOTIFY_RESUME must've been set if we got here - */ - ldr r2, [sp, #S_PSR] mov r0, sp @ 'regs' - tst r2, #15 @ are we returning to user mode? - bne no_work_pending @ no? just leave, then... mov r2, why @ 'syscall' - tst r1, #_TIF_SIGPENDING @ delivering a signal? - movne why, #0 @ prevent further restarts - bl do_notify_resume - b ret_slow_syscall @ Check work again + bl do_work_pending + cmp r0, #0 + beq no_work_pending + movlt scno, #(__NR_restart_syscall - __NR_SYSCALL_BASE) + ldmia sp, {r0 - r6} @ have to reload r0 - r6 + b local_restart @ ... and off we go -work_resched: - bl schedule /* * "slow" syscall return path. "why" tells us if this was a real syscall. */ @@ -409,6 +401,7 @@ ENTRY(vector_swi) eor scno, scno, #__NR_SYSCALL_BASE @ check OS number #endif +local_restart: ldr r10, [tsk, #TI_FLAGS] @ check for syscall tracing stmdb sp!, {r4, r5} @ push fifth and sixth args @@ -450,7 +443,8 @@ __sys_trace: mov scno, r0 @ syscall number (possibly new) add r1, sp, #S_R0 + S_OFF @ pointer to regs cmp scno, #NR_syscalls @ check upper syscall limit - ldmccia r1, {r0 - r3} @ have to reload r0 - r3 + ldmccia r1, {r0 - r6} @ have to reload r0 - r6 + stmccia sp, {r4, r5} @ and update the stack args ldrcc pc, [tbl, scno, lsl #2] @ call sys_* routine b 2b diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c index df0bf0c..34e5664 100644 --- a/arch/arm/kernel/ftrace.c +++ b/arch/arm/kernel/ftrace.c @@ -179,19 +179,20 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr, old = *parent; *parent = return_hooker; - err = ftrace_push_return_trace(old, self_addr, &trace.depth, - frame_pointer); - if (err == -EBUSY) { - *parent = old; - return; - } - trace.func = self_addr; + trace.depth = current->curr_ret_stack + 1; /* Only trace if the calling function expects to */ if (!ftrace_graph_entry(&trace)) { - current->curr_ret_stack--; *parent = old; + return; + } + + err = ftrace_push_return_trace(old, self_addr, &trace.depth, + frame_pointer); + if (err == -EBUSY) { + *parent = old; + return; } } diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 19c95ea..693b744 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -247,6 +247,7 @@ void machine_shutdown(void) void machine_halt(void) { machine_shutdown(); + local_irq_disable(); while (1); } @@ -268,6 +269,7 @@ void machine_restart(char *cmd) /* Whoops - the platform was unable to reboot. Tell the user! */ printk("Reboot failed -- System halted\n"); + local_irq_disable(); while (1); } diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index dab711e..3e0fc5f 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index e15d83b..a81dcec 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -508,7 +508,7 @@ void __init dump_machine_table(void) /* can't use cpu_relax() here as it may require MMU setup */; } -int __init arm_add_memory(phys_addr_t start, unsigned long size) +int __init arm_add_memory(phys_addr_t start, phys_addr_t size) { struct membank *bank = &meminfo.bank[meminfo.nr_banks]; @@ -538,7 +538,7 @@ int __init arm_add_memory(phys_addr_t start, unsigned long size) } #endif - bank->size = size & PAGE_MASK; + bank->size = size & ~(phys_addr_t)(PAGE_SIZE - 1); /* * Check whether this memory region has non-zero size or @@ -558,7 +558,7 @@ int __init arm_add_memory(phys_addr_t start, unsigned long size) static int __init early_mem(char *p) { static int usermem __initdata = 0; - unsigned long size; + phys_addr_t size; phys_addr_t start; char *endp; diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 536c5d6..f27789e 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -27,7 +27,6 @@ */ #define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE)) #define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE)) -#define SWI_SYS_RESTART (0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE) /* * With EABI, the syscall number has to be loaded into r7. @@ -48,18 +47,6 @@ const unsigned long sigreturn_codes[7] = { }; /* - * Either we support OABI only, or we have EABI with the OABI - * compat layer enabled. In the later case we don't know if - * user space is EABI or not, and if not we must not clobber r7. - * Always using the OABI syscall solves that issue and works for - * all those cases. - */ -const unsigned long syscall_restart_code[2] = { - SWI_SYS_RESTART, /* swi __NR_restart_syscall */ - 0xe49df004, /* ldr pc, [sp], #4 */ -}; - -/* * atomically swap in the new signal mask, and wait for a signal. */ asmlinkage int sys_sigsuspend(int restart, unsigned long oldmask, old_sigset_t mask) @@ -582,12 +569,13 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, * the kernel can handle, and then we build all the user-level signal handling * stack-frames in one go after that. */ -static void do_signal(struct pt_regs *regs, int syscall) +static int do_signal(struct pt_regs *regs, int syscall) { unsigned int retval = 0, continue_addr = 0, restart_addr = 0; struct k_sigaction ka; siginfo_t info; int signr; + int restart = 0; /* * If we were from a system call, check for system call restarting... @@ -602,15 +590,15 @@ static void do_signal(struct pt_regs *regs, int syscall) * debugger will see the already changed PSW. */ switch (retval) { + case -ERESTART_RESTARTBLOCK: + restart -= 2; case -ERESTARTNOHAND: case -ERESTARTSYS: case -ERESTARTNOINTR: + restart++; regs->ARM_r0 = regs->ARM_ORIG_r0; regs->ARM_pc = restart_addr; break; - case -ERESTART_RESTARTBLOCK: - regs->ARM_r0 = -EINTR; - break; } } @@ -619,14 +607,17 @@ static void do_signal(struct pt_regs *regs, int syscall) * point the debugger may change all our registers ... */ signr = get_signal_to_deliver(&info, &ka, regs, NULL); + /* + * Depending on the signal settings we may need to revert the + * decision to restart the system call. But skip this if a + * debugger has chosen to restart at a different PC. + */ + if (regs->ARM_pc != restart_addr) + restart = 0; if (signr > 0) { - /* - * Depending on the signal settings we may need to revert the - * decision to restart the system call. But skip this if a - * debugger has chosen to restart at a different PC. - */ - if (regs->ARM_pc == restart_addr) { - if (retval == -ERESTARTNOHAND + if (unlikely(restart)) { + if (retval == -ERESTARTNOHAND || + retval == -ERESTART_RESTARTBLOCK || (retval == -ERESTARTSYS && !(ka.sa.sa_flags & SA_RESTART))) { regs->ARM_r0 = -EINTR; @@ -635,52 +626,43 @@ static void do_signal(struct pt_regs *regs, int syscall) } handle_signal(signr, &ka, &info, regs); - return; - } - - if (syscall) { - /* - * Handle restarting a different system call. As above, - * if a debugger has chosen to restart at a different PC, - * ignore the restart. - */ - if (retval == -ERESTART_RESTARTBLOCK - && regs->ARM_pc == continue_addr) { - if (thumb_mode(regs)) { - regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE; - regs->ARM_pc -= 2; - } else { -#if defined(CONFIG_AEABI) && !defined(CONFIG_OABI_COMPAT) - regs->ARM_r7 = __NR_restart_syscall; - regs->ARM_pc -= 4; -#else - u32 __user *usp; - - regs->ARM_sp -= 4; - usp = (u32 __user *)regs->ARM_sp; - - if (put_user(regs->ARM_pc, usp) == 0) { - regs->ARM_pc = KERN_RESTART_CODE; - } else { - regs->ARM_sp += 4; - force_sigsegv(0, current); - } -#endif - } - } + return 0; } restore_saved_sigmask(); + if (unlikely(restart)) + regs->ARM_pc = continue_addr; + return restart; } -asmlinkage void -do_notify_resume(struct pt_regs *regs, unsigned int thread_flags, int syscall) +asmlinkage int +do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall) { - if (thread_flags & _TIF_SIGPENDING) - do_signal(regs, syscall); - - if (thread_flags & _TIF_NOTIFY_RESUME) { - clear_thread_flag(TIF_NOTIFY_RESUME); - tracehook_notify_resume(regs); - } + do { + if (likely(thread_flags & _TIF_NEED_RESCHED)) { + schedule(); + } else { + if (unlikely(!user_mode(regs))) + return 0; + local_irq_enable(); + if (thread_flags & _TIF_SIGPENDING) { + int restart = do_signal(regs, syscall); + if (unlikely(restart)) { + /* + * Restart without handlers. + * Deal with it without leaving + * the kernel space. + */ + return restart; + } + syscall = 0; + } else { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } + } + local_irq_disable(); + thread_flags = current_thread_info()->flags; + } while (thread_flags & _TIF_WORK_MASK); + return 0; } diff --git a/arch/arm/kernel/signal.h b/arch/arm/kernel/signal.h index 6fcfe83..5ff067b7 100644 --- a/arch/arm/kernel/signal.h +++ b/arch/arm/kernel/signal.h @@ -8,7 +8,5 @@ * published by the Free Software Foundation. */ #define KERN_SIGRETURN_CODE (CONFIG_VECTORS_BASE + 0x00000500) -#define KERN_RESTART_CODE (KERN_SIGRETURN_CODE + sizeof(sigreturn_codes)) extern const unsigned long sigreturn_codes[7]; -extern const unsigned long syscall_restart_code[2]; diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index aea74f5..ebd8ad2 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -563,7 +563,8 @@ void smp_send_stop(void) cpumask_copy(&mask, cpu_online_mask); cpumask_clear_cpu(smp_processor_id(), &mask); - smp_cross_call(&mask, IPI_CPU_STOP); + if (!cpumask_empty(&mask)) + smp_cross_call(&mask, IPI_CPU_STOP); /* Wait up to one second for other CPUs to stop */ timeout = USEC_PER_SEC; diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 8b97d73..f794521 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -402,18 +402,10 @@ static int call_undef_hook(struct pt_regs *regs, unsigned int instr) asmlinkage void __exception do_undefinstr(struct pt_regs *regs) { - unsigned int correction = thumb_mode(regs) ? 2 : 4; unsigned int instr; siginfo_t info; void __user *pc; - /* - * According to the ARM ARM, PC is 2 or 4 bytes ahead, - * depending whether we're in Thumb mode or not. - * Correct this offset. - */ - regs->ARM_pc -= correction; - pc = (void __user *)instruction_pointer(regs); if (processor_mode(regs) == SVC_MODE) { @@ -852,8 +844,6 @@ void __init early_trap_init(void *vectors_base) */ memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE), sigreturn_codes, sizeof(sigreturn_codes)); - memcpy((void *)(vectors + KERN_RESTART_CODE - CONFIG_VECTORS_BASE), - syscall_restart_code, sizeof(syscall_restart_code)); flush_icache_range(vectors, vectors + PAGE_SIZE); modify_domain(DOMAIN_USER, DOMAIN_CLIENT); diff --git a/arch/arm/lib/io-acorn.S b/arch/arm/lib/io-acorn.S index 1b197ea..69719ba 100644 --- a/arch/arm/lib/io-acorn.S +++ b/arch/arm/lib/io-acorn.S @@ -11,13 +11,14 @@ * */ #include +#include #include .text .align .Liosl_warning: - .ascii "<4>insl/outsl not implemented, called from %08lX\0" + .ascii KERN_WARNING "insl/outsl not implemented, called from %08lX\0" .align /* diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index d1624a3..783eab6 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -546,6 +546,7 @@ static struct lcd_ctrl_config lcd_cfg = { .sync_edge = 0, .sync_ctrl = 1, .raster_order = 0, + .fifo_th = 6, }; struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata = { diff --git a/arch/arm/mach-dove/irq.c b/arch/arm/mach-dove/irq.c index f07fd16..9bc97a5 100644 --- a/arch/arm/mach-dove/irq.c +++ b/arch/arm/mach-dove/irq.c @@ -20,22 +20,6 @@ #include #include "common.h" -static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - int irqoff; - BUG_ON(irq < IRQ_DOVE_GPIO_0_7 || irq > IRQ_DOVE_HIGH_GPIO); - - irqoff = irq <= IRQ_DOVE_GPIO_16_23 ? irq - IRQ_DOVE_GPIO_0_7 : - 3 + irq - IRQ_DOVE_GPIO_24_31; - - orion_gpio_irq_handler(irqoff << 3); - if (irq == IRQ_DOVE_HIGH_GPIO) { - orion_gpio_irq_handler(40); - orion_gpio_irq_handler(48); - orion_gpio_irq_handler(56); - } -} - static void pmu_irq_mask(struct irq_data *d) { int pin = irq_to_pmu(d->irq); @@ -90,6 +74,27 @@ static void pmu_irq_handler(unsigned int irq, struct irq_desc *desc) } } +static int __initdata gpio0_irqs[4] = { + IRQ_DOVE_GPIO_0_7, + IRQ_DOVE_GPIO_8_15, + IRQ_DOVE_GPIO_16_23, + IRQ_DOVE_GPIO_24_31, +}; + +static int __initdata gpio1_irqs[4] = { + IRQ_DOVE_HIGH_GPIO, + 0, + 0, + 0, +}; + +static int __initdata gpio2_irqs[4] = { + 0, + 0, + 0, + 0, +}; + void __init dove_init_irq(void) { int i; @@ -100,19 +105,14 @@ void __init dove_init_irq(void) /* * Initialize gpiolib for GPIOs 0-71. */ - orion_gpio_init(0, 32, DOVE_GPIO_LO_VIRT_BASE, 0, - IRQ_DOVE_GPIO_START); - irq_set_chained_handler(IRQ_DOVE_GPIO_0_7, gpio_irq_handler); - irq_set_chained_handler(IRQ_DOVE_GPIO_8_15, gpio_irq_handler); - irq_set_chained_handler(IRQ_DOVE_GPIO_16_23, gpio_irq_handler); - irq_set_chained_handler(IRQ_DOVE_GPIO_24_31, gpio_irq_handler); - - orion_gpio_init(32, 32, DOVE_GPIO_HI_VIRT_BASE, 0, - IRQ_DOVE_GPIO_START + 32); - irq_set_chained_handler(IRQ_DOVE_HIGH_GPIO, gpio_irq_handler); - - orion_gpio_init(64, 8, DOVE_GPIO2_VIRT_BASE, 0, - IRQ_DOVE_GPIO_START + 64); + orion_gpio_init(NULL, 0, 32, (void __iomem *)DOVE_GPIO_LO_VIRT_BASE, 0, + IRQ_DOVE_GPIO_START, gpio0_irqs); + + orion_gpio_init(NULL, 32, 32, (void __iomem *)DOVE_GPIO_HI_VIRT_BASE, 0, + IRQ_DOVE_GPIO_START + 32, gpio1_irqs); + + orion_gpio_init(NULL, 64, 8, (void __iomem *)DOVE_GPIO2_VIRT_BASE, 0, + IRQ_DOVE_GPIO_START + 64, gpio2_irqs); /* * Mask and clear PMU interrupts diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig index 199764f..ca5c15a 100644 --- a/arch/arm/mach-kirkwood/Kconfig +++ b/arch/arm/mach-kirkwood/Kconfig @@ -80,6 +80,35 @@ config MACH_IB62X0_DT RaidSonic IB-NAS6210 & IB-NAS6220 devices, using Flattened Device Tree. +config MACH_TS219_DT + bool "Device Tree for QNAP TS-11X, TS-21X NAS" + select ARCH_KIRKWOOD_DT + select ARM_APPENDED_DTB + select ARM_ATAG_DTB_COMPAT + help + Say 'Y' here if you want your kernel to support the QNAP + TS-110, TS-119, TS-119P+, TS-210, TS-219, TS-219P and + TS-219P+ Turbo NAS devices using Fattened Device Tree. + There are two different Device Tree descriptions, depending + on if the device is based on an if the board uses the MV6281 + or MV6282. If you have the wrong one, the buttons will not + work. + +config MACH_GOFLEXNET_DT + bool "Seagate GoFlex Net (Flattened Device Tree)" + select ARCH_KIRKWOOD_DT + help + Say 'Y' here if you want your kernel to support the + Seagate GoFlex Net (Flattened Device Tree). + +config MACH_LSXL_DT + bool "Buffalo Linkstation LS-XHL, LS-CHLv2 (Flattened Device Tree)" + select ARCH_KIRKWOOD_DT + help + Say 'Y' here if you want your kernel to support the + Buffalo Linkstation LS-XHL & LS-CHLv2 devices, using + Flattened Device Tree. + config MACH_TS219 bool "QNAP TS-110, TS-119, TS-119P+, TS-210, TS-219, TS-219P and TS-219P+ Turbo NAS" help diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile index d2b0590..055c85a 100644 --- a/arch/arm/mach-kirkwood/Makefile +++ b/arch/arm/mach-kirkwood/Makefile @@ -25,3 +25,6 @@ obj-$(CONFIG_MACH_DREAMPLUG_DT) += board-dreamplug.o obj-$(CONFIG_MACH_ICONNECT_DT) += board-iconnect.o obj-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += board-dnskw.o obj-$(CONFIG_MACH_IB62X0_DT) += board-ib62x0.o +obj-$(CONFIG_MACH_TS219_DT) += board-ts219.o tsx1x-common.o +obj-$(CONFIG_MACH_GOFLEXNET_DT) += board-goflexnet.o +obj-$(CONFIG_MACH_LSXL_DT) += board-lsxl.o diff --git a/arch/arm/mach-kirkwood/Makefile.boot b/arch/arm/mach-kirkwood/Makefile.boot index 02edbdf..2a576ab 100644 --- a/arch/arm/mach-kirkwood/Makefile.boot +++ b/arch/arm/mach-kirkwood/Makefile.boot @@ -7,3 +7,7 @@ dtb-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += kirkwood-dns320.dtb dtb-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += kirkwood-dns325.dtb dtb-$(CONFIG_MACH_ICONNECT_DT) += kirkwood-iconnect.dtb dtb-$(CONFIG_MACH_IB62X0_DT) += kirkwood-ib62x0.dtb +dtb-$(CONFIG_MACH_TS219_DT) += kirkwood-qnap-ts219.dtb +dtb-$(CONFIG_MACH_GOFLEXNET_DT) += kirkwood-goflexnet.dtb +dbt-$(CONFIG_MACH_LSXL_DT) += kirkwood-lschlv2.dtb +dbt-$(CONFIG_MACH_LSXL_DT) += kirkwood-lsxhl.dtb diff --git a/arch/arm/mach-kirkwood/board-dnskw.c b/arch/arm/mach-kirkwood/board-dnskw.c index 58c2d68..4ab3506 100644 --- a/arch/arm/mach-kirkwood/board-dnskw.c +++ b/arch/arm/mach-kirkwood/board-dnskw.c @@ -14,13 +14,11 @@ #include #include #include -#include #include #include #include #include #include -#include #include #include #include @@ -35,10 +33,6 @@ static struct mv643xx_eth_platform_data dnskw_ge00_data = { .phy_addr = MV643XX_ETH_PHY_ADDR(8), }; -static struct mv_sata_platform_data dnskw_sata_data = { - .n_ports = 2, -}; - static unsigned int dnskw_mpp_config[] __initdata = { MPP13_UART1_TXD, /* Custom ... */ MPP14_UART1_RXD, /* ... Controller (DNS-320 only) */ @@ -73,132 +67,6 @@ static unsigned int dnskw_mpp_config[] __initdata = { 0 }; -static struct gpio_led dns325_led_pins[] = { - { - .name = "dns325:white:power", - .gpio = 26, - .active_low = 1, - .default_trigger = "default-on", - }, - { - .name = "dns325:white:usb", - .gpio = 43, - .active_low = 1, - }, - { - .name = "dns325:red:l_hdd", - .gpio = 28, - .active_low = 1, - }, - { - .name = "dns325:red:r_hdd", - .gpio = 27, - .active_low = 1, - }, - { - .name = "dns325:red:usb", - .gpio = 29, - .active_low = 1, - }, -}; - -static struct gpio_led_platform_data dns325_led_data = { - .num_leds = ARRAY_SIZE(dns325_led_pins), - .leds = dns325_led_pins, -}; - -static struct platform_device dns325_led_device = { - .name = "leds-gpio", - .id = -1, - .dev = { - .platform_data = &dns325_led_data, - }, -}; - -static struct gpio_led dns320_led_pins[] = { - { - .name = "dns320:blue:power", - .gpio = 26, - .active_low = 1, - .default_trigger = "default-on", - }, - { - .name = "dns320:blue:usb", - .gpio = 43, - .active_low = 1, - }, - { - .name = "dns320:orange:l_hdd", - .gpio = 28, - .active_low = 1, - }, - { - .name = "dns320:orange:r_hdd", - .gpio = 27, - .active_low = 1, - }, - { - .name = "dns320:orange:usb", - .gpio = 35, - .active_low = 1, - }, -}; - -static struct gpio_led_platform_data dns320_led_data = { - .num_leds = ARRAY_SIZE(dns320_led_pins), - .leds = dns320_led_pins, -}; - -static struct platform_device dns320_led_device = { - .name = "leds-gpio", - .id = -1, - .dev = { - .platform_data = &dns320_led_data, - }, -}; - -static struct i2c_board_info dns325_i2c_board_info[] __initdata = { - { - I2C_BOARD_INFO("lm75", 0x48), - }, - /* Something at 0x0c also */ -}; - -static struct gpio_keys_button dnskw_button_pins[] = { - { - .code = KEY_POWER, - .gpio = 34, - .desc = "Power button", - .active_low = 1, - }, - { - .code = KEY_EJECTCD, - .gpio = 47, - .desc = "USB unmount button", - .active_low = 1, - }, - { - .code = KEY_RESTART, - .gpio = 48, - .desc = "Reset button", - .active_low = 1, - }, -}; - -static struct gpio_keys_platform_data dnskw_button_data = { - .buttons = dnskw_button_pins, - .nbuttons = ARRAY_SIZE(dnskw_button_pins), -}; - -static struct platform_device dnskw_button_device = { - .name = "gpio-keys", - .id = -1, - .num_resources = 0, - .dev = { - .platform_data = &dnskw_button_data, - } -}; - /* Fan: ADDA AD045HB-G73 40mm 6000rpm@5v */ static struct gpio_fan_speed dnskw_fan_speed[] = { { 0, 0 }, @@ -245,20 +113,9 @@ void __init dnskw_init(void) kirkwood_ehci_init(); kirkwood_ge00_init(&dnskw_ge00_data); - kirkwood_sata_init(&dnskw_sata_data); - kirkwood_i2c_init(); - platform_device_register(&dnskw_button_device); platform_device_register(&dnskw_fan_device); - if (of_machine_is_compatible("dlink,dns-325")) { - i2c_register_board_info(0, dns325_i2c_board_info, - ARRAY_SIZE(dns325_i2c_board_info)); - platform_device_register(&dns325_led_device); - - } else if (of_machine_is_compatible("dlink,dns-320")) - platform_device_register(&dns320_led_device); - /* Register power-off GPIO. */ if (gpio_request(36, "dnskw:power:off") == 0 && gpio_direction_output(36, 0) == 0) diff --git a/arch/arm/mach-kirkwood/board-dreamplug.c b/arch/arm/mach-kirkwood/board-dreamplug.c index 55e357a..aeb234d 100644 --- a/arch/arm/mach-kirkwood/board-dreamplug.c +++ b/arch/arm/mach-kirkwood/board-dreamplug.c @@ -14,7 +14,6 @@ #include #include #include -#include #include #include #include @@ -23,7 +22,6 @@ #include #include #include -#include #include #include #include @@ -36,42 +34,6 @@ #include "common.h" #include "mpp.h" -struct mtd_partition dreamplug_partitions[] = { - { - .name = "u-boot", - .size = SZ_512K, - .offset = 0, - }, - { - .name = "u-boot env", - .size = SZ_64K, - .offset = SZ_512K + SZ_512K, - }, - { - .name = "dtb", - .size = SZ_64K, - .offset = SZ_512K + SZ_512K + SZ_512K, - }, -}; - -static const struct flash_platform_data dreamplug_spi_slave_data = { - .type = "mx25l1606e", - .name = "spi_flash", - .parts = dreamplug_partitions, - .nr_parts = ARRAY_SIZE(dreamplug_partitions), -}; - -static struct spi_board_info __initdata dreamplug_spi_slave_info[] = { - { - .modalias = "m25p80", - .platform_data = &dreamplug_spi_slave_data, - .irq = -1, - .max_speed_hz = 50000000, - .bus_num = 0, - .chip_select = 0, - }, -}; - static struct mv643xx_eth_platform_data dreamplug_ge00_data = { .phy_addr = MV643XX_ETH_PHY_ADDR(0), }; @@ -80,45 +42,10 @@ static struct mv643xx_eth_platform_data dreamplug_ge01_data = { .phy_addr = MV643XX_ETH_PHY_ADDR(1), }; -static struct mv_sata_platform_data dreamplug_sata_data = { - .n_ports = 1, -}; - static struct mvsdio_platform_data dreamplug_mvsdio_data = { /* unfortunately the CD signal has not been connected */ }; -static struct gpio_led dreamplug_led_pins[] = { - { - .name = "dreamplug:blue:bluetooth", - .gpio = 47, - .active_low = 1, - }, - { - .name = "dreamplug:green:wifi", - .gpio = 48, - .active_low = 1, - }, - { - .name = "dreamplug:green:wifi_ap", - .gpio = 49, - .active_low = 1, - }, -}; - -static struct gpio_led_platform_data dreamplug_led_data = { - .leds = dreamplug_led_pins, - .num_leds = ARRAY_SIZE(dreamplug_led_pins), -}; - -static struct platform_device dreamplug_leds = { - .name = "leds-gpio", - .id = -1, - .dev = { - .platform_data = &dreamplug_led_data, - } -}; - static unsigned int dreamplug_mpp_config[] __initdata = { MPP0_SPI_SCn, MPP1_SPI_MOSI, @@ -137,15 +64,8 @@ void __init dreamplug_init(void) */ kirkwood_mpp_conf(dreamplug_mpp_config); - spi_register_board_info(dreamplug_spi_slave_info, - ARRAY_SIZE(dreamplug_spi_slave_info)); - kirkwood_spi_init(); - kirkwood_ehci_init(); kirkwood_ge00_init(&dreamplug_ge00_data); kirkwood_ge01_init(&dreamplug_ge01_data); - kirkwood_sata_init(&dreamplug_sata_data); kirkwood_sdio_init(&dreamplug_mvsdio_data); - - platform_device_register(&dreamplug_leds); } diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c index edc3f8a..e4eb450 100644 --- a/arch/arm/mach-kirkwood/board-dt.c +++ b/arch/arm/mach-kirkwood/board-dt.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "common.h" static struct of_device_id kirkwood_dt_match_table[] __initdata = { @@ -25,6 +26,16 @@ static struct of_device_id kirkwood_dt_match_table[] __initdata = { { } }; +struct of_dev_auxdata kirkwood_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL), + OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0", + NULL), + OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL), + OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL), + OF_DEV_AUXDATA("marvell,orion-nand", 0xf4000000, "orion_nand", NULL), + {}, +}; + static void __init kirkwood_dt_init(void) { pr_info("Kirkwood: %s, TCLK=%d.\n", kirkwood_id(), kirkwood_tclk); @@ -47,7 +58,6 @@ static void __init kirkwood_dt_init(void) kirkwood_clk_init(); /* internal devices that every board has */ - kirkwood_wdt_init(); kirkwood_xor0_init(); kirkwood_xor1_init(); kirkwood_crypto_init(); @@ -68,7 +78,17 @@ static void __init kirkwood_dt_init(void) if (of_machine_is_compatible("raidsonic,ib-nas62x0")) ib62x0_init(); - of_platform_populate(NULL, kirkwood_dt_match_table, NULL, NULL); + if (of_machine_is_compatible("qnap,ts219")) + qnap_dt_ts219_init(); + + if (of_machine_is_compatible("seagate,goflexnet")) + goflexnet_init(); + + if (of_machine_is_compatible("buffalo,lsxl")) + lsxl_init(); + + of_platform_populate(NULL, kirkwood_dt_match_table, + kirkwood_auxdata_lookup, NULL); } static const char *kirkwood_dt_board_compat[] = { @@ -77,6 +97,9 @@ static const char *kirkwood_dt_board_compat[] = { "dlink,dns-325", "iom,iconnect", "raidsonic,ib-nas62x0", + "qnap,ts219", + "seagate,goflexnet", + "buffalo,lsxl", NULL }; @@ -84,7 +107,7 @@ DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)") /* Maintainer: Jason Cooper */ .map_io = kirkwood_map_io, .init_early = kirkwood_init_early, - .init_irq = kirkwood_init_irq, + .init_irq = orion_dt_init_irq, .timer = &kirkwood_timer, .init_machine = kirkwood_dt_init, .restart = kirkwood_restart, diff --git a/arch/arm/mach-kirkwood/board-goflexnet.c b/arch/arm/mach-kirkwood/board-goflexnet.c new file mode 100644 index 0000000..413e2c8 --- /dev/null +++ b/arch/arm/mach-kirkwood/board-goflexnet.c @@ -0,0 +1,71 @@ +/* + * Copyright 2012 (C), Jason Cooper + * + * arch/arm/mach-kirkwood/board-goflexnet.c + * + * Seagate GoFlext Net Board Init for drivers not converted to + * flattened device tree yet. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * Copied and modified for Seagate GoFlex Net support by + * Joshua Coombs based on ArchLinux ARM's + * GoFlex kernel patches. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "common.h" +#include "mpp.h" + +static struct mv643xx_eth_platform_data goflexnet_ge00_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(0), +}; + +static unsigned int goflexnet_mpp_config[] __initdata = { + MPP29_GPIO, /* USB Power Enable */ + MPP47_GPIO, /* LED Orange */ + MPP46_GPIO, /* LED Green */ + MPP45_GPIO, /* LED Left Capacity 3 */ + MPP44_GPIO, /* LED Left Capacity 2 */ + MPP43_GPIO, /* LED Left Capacity 1 */ + MPP42_GPIO, /* LED Left Capacity 0 */ + MPP41_GPIO, /* LED Right Capacity 3 */ + MPP40_GPIO, /* LED Right Capacity 2 */ + MPP39_GPIO, /* LED Right Capacity 1 */ + MPP38_GPIO, /* LED Right Capacity 0 */ + 0 +}; + +void __init goflexnet_init(void) +{ + /* + * Basic setup. Needs to be called early. + */ + kirkwood_mpp_conf(goflexnet_mpp_config); + + if (gpio_request(29, "USB Power Enable") != 0 || + gpio_direction_output(29, 1) != 0) + pr_err("can't setup GPIO 29 (USB Power Enable)\n"); + kirkwood_ehci_init(); + + kirkwood_ge00_init(&goflexnet_ge00_data); +} diff --git a/arch/arm/mach-kirkwood/board-ib62x0.c b/arch/arm/mach-kirkwood/board-ib62x0.c index eddf1df..cfc47f8 100644 --- a/arch/arm/mach-kirkwood/board-ib62x0.c +++ b/arch/arm/mach-kirkwood/board-ib62x0.c @@ -18,9 +18,7 @@ #include #include #include -#include #include -#include #include #include #include @@ -33,10 +31,6 @@ static struct mv643xx_eth_platform_data ib62x0_ge00_data = { .phy_addr = MV643XX_ETH_PHY_ADDR(8), }; -static struct mv_sata_platform_data ib62x0_sata_data = { - .n_ports = 2, -}; - static unsigned int ib62x0_mpp_config[] __initdata = { MPP0_NF_IO2, MPP1_NF_IO3, @@ -55,69 +49,6 @@ static unsigned int ib62x0_mpp_config[] __initdata = { 0 }; -static struct gpio_led ib62x0_led_pins[] = { - { - .name = "ib62x0:green:os", - .default_trigger = "default-on", - .gpio = 25, - .active_low = 0, - }, - { - .name = "ib62x0:red:os", - .default_trigger = "none", - .gpio = 22, - .active_low = 0, - }, - { - .name = "ib62x0:red:usb_copy", - .default_trigger = "none", - .gpio = 27, - .active_low = 0, - }, -}; - -static struct gpio_led_platform_data ib62x0_led_data = { - .leds = ib62x0_led_pins, - .num_leds = ARRAY_SIZE(ib62x0_led_pins), -}; - -static struct platform_device ib62x0_led_device = { - .name = "leds-gpio", - .id = -1, - .dev = { - .platform_data = &ib62x0_led_data, - } -}; - -static struct gpio_keys_button ib62x0_button_pins[] = { - { - .code = KEY_COPY, - .gpio = 29, - .desc = "USB Copy", - .active_low = 1, - }, - { - .code = KEY_RESTART, - .gpio = 28, - .desc = "Reset", - .active_low = 1, - }, -}; - -static struct gpio_keys_platform_data ib62x0_button_data = { - .buttons = ib62x0_button_pins, - .nbuttons = ARRAY_SIZE(ib62x0_button_pins), -}; - -static struct platform_device ib62x0_button_device = { - .name = "gpio-keys", - .id = -1, - .num_resources = 0, - .dev = { - .platform_data = &ib62x0_button_data, - } -}; - static void ib62x0_power_off(void) { gpio_set_value(IB62X0_GPIO_POWER_OFF, 1); @@ -132,9 +63,6 @@ void __init ib62x0_init(void) kirkwood_ehci_init(); kirkwood_ge00_init(&ib62x0_ge00_data); - kirkwood_sata_init(&ib62x0_sata_data); - platform_device_register(&ib62x0_led_device); - platform_device_register(&ib62x0_button_device); if (gpio_request(IB62X0_GPIO_POWER_OFF, "ib62x0:power:off") == 0 && gpio_direction_output(IB62X0_GPIO_POWER_OFF, 0) == 0) pm_power_off = ib62x0_power_off; diff --git a/arch/arm/mach-kirkwood/board-iconnect.c b/arch/arm/mach-kirkwood/board-iconnect.c index b0d3cc4..d7a9198 100644 --- a/arch/arm/mach-kirkwood/board-iconnect.c +++ b/arch/arm/mach-kirkwood/board-iconnect.c @@ -19,8 +19,6 @@ #include #include #include -#include -#include #include #include #include @@ -32,50 +30,6 @@ static struct mv643xx_eth_platform_data iconnect_ge00_data = { .phy_addr = MV643XX_ETH_PHY_ADDR(11), }; -static struct gpio_led iconnect_led_pins[] = { - { - .name = "led_level", - .gpio = 41, - .default_trigger = "default-on", - }, { - .name = "power:blue", - .gpio = 42, - .default_trigger = "timer", - }, { - .name = "power:red", - .gpio = 43, - }, { - .name = "usb1:blue", - .gpio = 44, - }, { - .name = "usb2:blue", - .gpio = 45, - }, { - .name = "usb3:blue", - .gpio = 46, - }, { - .name = "usb4:blue", - .gpio = 47, - }, { - .name = "otb:blue", - .gpio = 48, - }, -}; - -static struct gpio_led_platform_data iconnect_led_data = { - .leds = iconnect_led_pins, - .num_leds = ARRAY_SIZE(iconnect_led_pins), - .gpio_blink_set = orion_gpio_led_blink_set, -}; - -static struct platform_device iconnect_leds = { - .name = "leds-gpio", - .id = -1, - .dev = { - .platform_data = &iconnect_led_data, - } -}; - static unsigned int iconnect_mpp_config[] __initdata = { MPP12_GPIO, MPP35_GPIO, @@ -90,12 +44,6 @@ static unsigned int iconnect_mpp_config[] __initdata = { 0 }; -static struct i2c_board_info __initdata iconnect_board_info[] = { - { - I2C_BOARD_INFO("lm63", 0x4c), - }, -}; - static struct mtd_partition iconnect_nand_parts[] = { { .name = "flash", @@ -142,15 +90,11 @@ void __init iconnect_init(void) { kirkwood_mpp_conf(iconnect_mpp_config); kirkwood_nand_init(ARRAY_AND_SIZE(iconnect_nand_parts), 25); - kirkwood_i2c_init(); - i2c_register_board_info(0, iconnect_board_info, - ARRAY_SIZE(iconnect_board_info)); kirkwood_ehci_init(); kirkwood_ge00_init(&iconnect_ge00_data); platform_device_register(&iconnect_button_device); - platform_device_register(&iconnect_leds); } static int __init iconnect_pci_init(void) diff --git a/arch/arm/mach-kirkwood/board-lsxl.c b/arch/arm/mach-kirkwood/board-lsxl.c new file mode 100644 index 0000000..83d8975 --- /dev/null +++ b/arch/arm/mach-kirkwood/board-lsxl.c @@ -0,0 +1,135 @@ +/* + * Copyright 2012 (C), Michael Walle + * + * arch/arm/mach-kirkwood/board-lsxl.c + * + * Buffalo Linkstation LS-XHL and LS-CHLv2 init for drivers not + * converted to flattened device tree yet. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "common.h" +#include "mpp.h" + +static struct mv643xx_eth_platform_data lsxl_ge00_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(0), +}; + +static struct mv643xx_eth_platform_data lsxl_ge01_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(8), +}; + +static unsigned int lsxl_mpp_config[] __initdata = { + MPP10_GPO, /* HDD Power Enable */ + MPP11_GPIO, /* USB Vbus Enable */ + MPP18_GPO, /* FAN High Enable# */ + MPP19_GPO, /* FAN Low Enable# */ + MPP36_GPIO, /* Function Blue LED */ + MPP37_GPIO, /* Alarm LED */ + MPP38_GPIO, /* Info LED */ + MPP39_GPIO, /* Power LED */ + MPP40_GPIO, /* Fan Lock */ + MPP41_GPIO, /* Function Button */ + MPP42_GPIO, /* Power Switch */ + MPP43_GPIO, /* Power Auto Switch */ + MPP48_GPIO, /* Function Red LED */ + 0 +}; + +#define LSXL_GPIO_FAN_HIGH 18 +#define LSXL_GPIO_FAN_LOW 19 +#define LSXL_GPIO_FAN_LOCK 40 + +static struct gpio_fan_alarm lsxl_alarm = { + .gpio = LSXL_GPIO_FAN_LOCK, +}; + +static struct gpio_fan_speed lsxl_speeds[] = { + { + .rpm = 0, + .ctrl_val = 3, + }, { + .rpm = 1500, + .ctrl_val = 1, + }, { + .rpm = 3250, + .ctrl_val = 2, + }, { + .rpm = 5000, + .ctrl_val = 0, + } +}; + +static int lsxl_gpio_list[] = { + LSXL_GPIO_FAN_HIGH, LSXL_GPIO_FAN_LOW, +}; + +static struct gpio_fan_platform_data lsxl_fan_data = { + .num_ctrl = ARRAY_SIZE(lsxl_gpio_list), + .ctrl = lsxl_gpio_list, + .alarm = &lsxl_alarm, + .num_speed = ARRAY_SIZE(lsxl_speeds), + .speed = lsxl_speeds, +}; + +static struct platform_device lsxl_fan_device = { + .name = "gpio-fan", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &lsxl_fan_data, + }, +}; + +/* + * On the LS-XHL/LS-CHLv2, the shutdown process is following: + * - Userland monitors key events until the power switch goes to off position + * - The board reboots + * - U-boot starts and goes into an idle mode waiting for the user + * to move the switch to ON position + * + */ +static void lsxl_power_off(void) +{ + kirkwood_restart('h', NULL); +} + +#define LSXL_GPIO_HDD_POWER 10 +#define LSXL_GPIO_USB_POWER 11 + +void __init lsxl_init(void) +{ + /* + * Basic setup. Needs to be called early. + */ + kirkwood_mpp_conf(lsxl_mpp_config); + + /* usb and sata power on */ + gpio_set_value(LSXL_GPIO_USB_POWER, 1); + gpio_set_value(LSXL_GPIO_HDD_POWER, 1); + + kirkwood_ehci_init(); + kirkwood_ge00_init(&lsxl_ge00_data); + kirkwood_ge01_init(&lsxl_ge01_data); + platform_device_register(&lsxl_fan_device); + + /* register power-off method */ + pm_power_off = lsxl_power_off; +} diff --git a/arch/arm/mach-kirkwood/board-ts219.c b/arch/arm/mach-kirkwood/board-ts219.c new file mode 100644 index 0000000..1750e68 --- /dev/null +++ b/arch/arm/mach-kirkwood/board-ts219.c @@ -0,0 +1,82 @@ +/* + * + * QNAP TS-11x/TS-21x Turbo NAS Board Setup via DT + * + * Copyright (C) 2012 Andrew Lunn + * + * Based on the board file ts219-setup.c: + * + * Copyright (C) 2009 Martin Michlmayr + * Copyright (C) 2008 Byron Bradley + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "common.h" +#include "mpp.h" +#include "tsx1x-common.h" + +static struct mv643xx_eth_platform_data qnap_ts219_ge00_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(8), +}; + +static unsigned int qnap_ts219_mpp_config[] __initdata = { + MPP0_SPI_SCn, + MPP1_SPI_MOSI, + MPP2_SPI_SCK, + MPP3_SPI_MISO, + MPP4_SATA1_ACTn, + MPP5_SATA0_ACTn, + MPP8_TW0_SDA, + MPP9_TW0_SCK, + MPP10_UART0_TXD, + MPP11_UART0_RXD, + MPP13_UART1_TXD, /* PIC controller */ + MPP14_UART1_RXD, /* PIC controller */ + MPP15_GPIO, /* USB Copy button (on devices with 88F6281) */ + MPP16_GPIO, /* Reset button (on devices with 88F6281) */ + MPP36_GPIO, /* RAM: 0: 256 MB, 1: 512 MB */ + MPP37_GPIO, /* Reset button (on devices with 88F6282) */ + MPP43_GPIO, /* USB Copy button (on devices with 88F6282) */ + MPP44_GPIO, /* Board ID: 0: TS-11x, 1: TS-21x */ + 0 +}; + +void __init qnap_dt_ts219_init(void) +{ + u32 dev, rev; + + kirkwood_mpp_conf(qnap_ts219_mpp_config); + + kirkwood_pcie_id(&dev, &rev); + if (dev == MV88F6282_DEV_ID) + qnap_ts219_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0); + + kirkwood_ge00_init(&qnap_ts219_ge00_data); + kirkwood_ehci_init(); + + pm_power_off = qnap_tsx1x_power_off; +} + +/* FIXME: Will not work with DT. Maybe use MPP40_GPIO? */ +static int __init ts219_pci_init(void) +{ + if (machine_is_ts219()) + kirkwood_pcie_init(KW_PCIE0); + + return 0; +} +subsys_initcall(ts219_pci_init); diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index c920153..c4b64ad 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -276,6 +277,7 @@ void __init kirkwood_clk_init(void) orion_clkdev_add("0", "pcie", pex0); orion_clkdev_add("1", "pcie", pex1); orion_clkdev_add(NULL, "kirkwood-i2s", audio); + orion_clkdev_add(NULL, MV64XXX_I2C_CTLR_NAME ".0", runit); /* Marvell says runit is used by SPI, UART, NAND, TWSI, ..., * so should never be gated. diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h index 9248fa2..304dd1a 100644 --- a/arch/arm/mach-kirkwood/common.h +++ b/arch/arm/mach-kirkwood/common.h @@ -58,6 +58,11 @@ void dreamplug_init(void); #else static inline void dreamplug_init(void) {}; #endif +#ifdef CONFIG_MACH_TS219_DT +void qnap_dt_ts219_init(void); +#else +static inline void qnap_dt_ts219_init(void) {}; +#endif #ifdef CONFIG_MACH_DLINK_KIRKWOOD_DT void dnskw_init(void); @@ -77,6 +82,18 @@ void ib62x0_init(void); static inline void ib62x0_init(void) {}; #endif +#ifdef CONFIG_MACH_GOFLEXNET_DT +void goflexnet_init(void); +#else +static inline void goflexnet_init(void) {}; +#endif + +#ifdef CONFIG_MACH_LSXL_DT +void lsxl_init(void); +#else +static inline void lsxl_init(void) {}; +#endif + /* early init functions not converted to fdt yet */ char *kirkwood_id(void); void kirkwood_l2_init(void); diff --git a/arch/arm/mach-kirkwood/irq.c b/arch/arm/mach-kirkwood/irq.c index c4c68e5..720063f 100644 --- a/arch/arm/mach-kirkwood/irq.c +++ b/arch/arm/mach-kirkwood/irq.c @@ -9,20 +9,23 @@ */ #include #include -#include #include -#include #include #include -#include "common.h" -static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - BUG_ON(irq < IRQ_KIRKWOOD_GPIO_LOW_0_7); - BUG_ON(irq > IRQ_KIRKWOOD_GPIO_HIGH_16_23); +static int __initdata gpio0_irqs[4] = { + IRQ_KIRKWOOD_GPIO_LOW_0_7, + IRQ_KIRKWOOD_GPIO_LOW_8_15, + IRQ_KIRKWOOD_GPIO_LOW_16_23, + IRQ_KIRKWOOD_GPIO_LOW_24_31, +}; - orion_gpio_irq_handler((irq - IRQ_KIRKWOOD_GPIO_LOW_0_7) << 3); -} +static int __initdata gpio1_irqs[4] = { + IRQ_KIRKWOOD_GPIO_HIGH_0_7, + IRQ_KIRKWOOD_GPIO_HIGH_8_15, + IRQ_KIRKWOOD_GPIO_HIGH_16_23, + 0, +}; void __init kirkwood_init_irq(void) { @@ -32,17 +35,8 @@ void __init kirkwood_init_irq(void) /* * Initialize gpiolib for GPIOs 0-49. */ - orion_gpio_init(0, 32, GPIO_LOW_VIRT_BASE, 0, - IRQ_KIRKWOOD_GPIO_START); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_0_7, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_8_15, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_16_23, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_LOW_24_31, gpio_irq_handler); - - orion_gpio_init(32, 18, GPIO_HIGH_VIRT_BASE, 0, - IRQ_KIRKWOOD_GPIO_START + 32); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_0_7, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_8_15, gpio_irq_handler); - irq_set_chained_handler(IRQ_KIRKWOOD_GPIO_HIGH_16_23, - gpio_irq_handler); + orion_gpio_init(NULL, 0, 32, (void __iomem *)GPIO_LOW_VIRT_BASE, 0, + IRQ_KIRKWOOD_GPIO_START, gpio0_irqs); + orion_gpio_init(NULL, 32, 18, (void __iomem *)GPIO_HIGH_VIRT_BASE, 0, + IRQ_KIRKWOOD_GPIO_START + 32, gpio1_irqs); } diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c index f516e74..5c3d61e 100644 --- a/arch/arm/mach-mmp/gplugd.c +++ b/arch/arm/mach-mmp/gplugd.c @@ -14,6 +14,7 @@ #include #include +#include #include #include diff --git a/arch/arm/mach-mv78xx0/irq.c b/arch/arm/mach-mv78xx0/irq.c index e421b70..eff9a75 100644 --- a/arch/arm/mach-mv78xx0/irq.c +++ b/arch/arm/mach-mv78xx0/irq.c @@ -9,19 +9,17 @@ */ #include #include -#include -#include #include #include #include #include "common.h" -static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - BUG_ON(irq < IRQ_MV78XX0_GPIO_0_7 || irq > IRQ_MV78XX0_GPIO_24_31); - - orion_gpio_irq_handler((irq - IRQ_MV78XX0_GPIO_0_7) << 3); -} +static int __initdata gpio0_irqs[4] = { + IRQ_MV78XX0_GPIO_0_7, + IRQ_MV78XX0_GPIO_8_15, + IRQ_MV78XX0_GPIO_16_23, + IRQ_MV78XX0_GPIO_24_31, +}; void __init mv78xx0_init_irq(void) { @@ -34,11 +32,7 @@ void __init mv78xx0_init_irq(void) * registers for core #1 are at an offset of 0x18 from those of * core #0.) */ - orion_gpio_init(0, 32, GPIO_VIRT_BASE, + orion_gpio_init(NULL, 0, 32, (void __iomem *)GPIO_VIRT_BASE, mv78xx0_core_index() ? 0x18 : 0, - IRQ_MV78XX0_GPIO_START); - irq_set_chained_handler(IRQ_MV78XX0_GPIO_0_7, gpio_irq_handler); - irq_set_chained_handler(IRQ_MV78XX0_GPIO_8_15, gpio_irq_handler); - irq_set_chained_handler(IRQ_MV78XX0_GPIO_16_23, gpio_irq_handler); - irq_set_chained_handler(IRQ_MV78XX0_GPIO_24_31, gpio_irq_handler); + IRQ_MV78XX0_GPIO_START, gpio0_irqs); } diff --git a/arch/arm/mach-netx/fb.c b/arch/arm/mach-netx/fb.c index 2cdf6ef..d122ee6 100644 --- a/arch/arm/mach-netx/fb.c +++ b/arch/arm/mach-netx/fb.c @@ -69,29 +69,6 @@ void netx_clcd_remove(struct clcd_fb *fb) fb->fb.screen_base, fb->fb.fix.smem_start); } -void clk_disable(struct clk *clk) -{ -} - -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - return 0; -} - -int clk_enable(struct clk *clk) -{ - return 0; -} - -struct clk *clk_get(struct device *dev, const char *id) -{ - return dev && strcmp(dev_name(dev), "fb") == 0 ? NULL : ERR_PTR(-ENOENT); -} - -void clk_put(struct clk *clk) -{ -} - static AMBA_AHB_DEVICE(fb, "fb", 0, 0x00104000, { NETX_IRQ_LCD }, NULL); int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel) diff --git a/arch/arm/mach-omap1/board-h2-mmc.c b/arch/arm/mach-omap1/board-h2-mmc.c index da0e37d..e1362ce 100644 --- a/arch/arm/mach-omap1/board-h2-mmc.c +++ b/arch/arm/mach-omap1/board-h2-mmc.c @@ -54,7 +54,6 @@ static struct omap_mmc_platform_data mmc1_data = { .nr_slots = 1, .init = mmc_late_init, .cleanup = mmc_cleanup, - .dma_mask = 0xffffffff, .slots[0] = { .set_power = mmc_set_power, .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, diff --git a/arch/arm/mach-omap1/board-h3-mmc.c b/arch/arm/mach-omap1/board-h3-mmc.c index f8242aa..c74daac 100644 --- a/arch/arm/mach-omap1/board-h3-mmc.c +++ b/arch/arm/mach-omap1/board-h3-mmc.c @@ -36,7 +36,6 @@ static int mmc_set_power(struct device *dev, int slot, int power_on, */ static struct omap_mmc_platform_data mmc1_data = { .nr_slots = 1, - .dma_mask = 0xffffffff, .slots[0] = { .set_power = mmc_set_power, .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c index 4007a37..2c0ca8f 100644 --- a/arch/arm/mach-omap1/board-nokia770.c +++ b/arch/arm/mach-omap1/board-nokia770.c @@ -185,7 +185,6 @@ static int nokia770_mmc_get_cover_state(struct device *dev, int slot) static struct omap_mmc_platform_data nokia770_mmc2_data = { .nr_slots = 1, - .dma_mask = 0xffffffff, .max_freq = 12000000, .slots[0] = { .set_power = nokia770_mmc_set_power, diff --git a/arch/arm/mach-omap1/board-palmz71.c b/arch/arm/mach-omap1/board-palmz71.c index cc71a26..3559803 100644 --- a/arch/arm/mach-omap1/board-palmz71.c +++ b/arch/arm/mach-omap1/board-palmz71.c @@ -288,8 +288,7 @@ palmz71_gpio_setup(int early) } gpio_direction_input(PALMZ71_USBDETECT_GPIO); if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO), - palmz71_powercable, IRQF_SAMPLE_RANDOM, - "palmz71-cable", NULL)) + palmz71_powercable, 0, "palmz71-cable", NULL)) printk(KERN_ERR "IRQ request for power cable failed!\n"); palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL); diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index dd0fbf7..dd2db02 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -62,6 +62,7 @@ config ARCH_OMAP4 select PM_OPP if PM select USB_ARCH_HAS_EHCI if USB_SUPPORT select ARM_CPU_SUSPEND if PM + select ARCH_NEEDS_CPU_IDLE_COUPLED config SOC_OMAP5 bool "TI OMAP5" diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c index 2c5d0ed..677357f 100644 --- a/arch/arm/mach-omap2/board-n8x0.c +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -468,7 +468,6 @@ static struct omap_mmc_platform_data mmc1_data = { .cleanup = n8x0_mmc_cleanup, .shutdown = n8x0_mmc_shutdown, .max_freq = 24000000, - .dma_mask = 0xffffffff, .slots[0] = { .wires = 4, .set_power = n8x0_mmc_set_power, diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c index 02d15bb..ee05e19 100644 --- a/arch/arm/mach-omap2/cpuidle44xx.c +++ b/arch/arm/mach-omap2/cpuidle44xx.c @@ -21,6 +21,7 @@ #include "common.h" #include "pm.h" #include "prm.h" +#include "clockdomain.h" /* Machine specific information */ struct omap4_idle_statedata { @@ -47,10 +48,14 @@ static struct omap4_idle_statedata omap4_idle_data[] = { }, }; -static struct powerdomain *mpu_pd, *cpu0_pd, *cpu1_pd; +static struct powerdomain *mpu_pd, *cpu_pd[NR_CPUS]; +static struct clockdomain *cpu_clkdm[NR_CPUS]; + +static atomic_t abort_barrier; +static bool cpu_done[NR_CPUS]; /** - * omap4_enter_idle - Programs OMAP4 to enter the specified state + * omap4_enter_idle_coupled_[simple/coupled] - OMAP4 cpuidle entry functions * @dev: cpuidle device * @drv: cpuidle driver * @index: the index of state to be entered @@ -59,60 +64,84 @@ static struct powerdomain *mpu_pd, *cpu0_pd, *cpu1_pd; * specified low power state selected by the governor. * Returns the amount of time spent in the low power state. */ -static int omap4_enter_idle(struct cpuidle_device *dev, +static int omap4_enter_idle_simple(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + local_fiq_disable(); + omap_do_wfi(); + local_fiq_enable(); + + return index; +} + +static int omap4_enter_idle_coupled(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { struct omap4_idle_statedata *cx = &omap4_idle_data[index]; - u32 cpu1_state; int cpu_id = smp_processor_id(); local_fiq_disable(); /* - * CPU0 has to stay ON (i.e in C1) until CPU1 is OFF state. + * CPU0 has to wait and stay ON until CPU1 is OFF state. * This is necessary to honour hardware recommondation * of triggeing all the possible low power modes once CPU1 is * out of coherency and in OFF mode. - * Update dev->last_state so that governor stats reflects right - * data. */ - cpu1_state = pwrdm_read_pwrst(cpu1_pd); - if (cpu1_state != PWRDM_POWER_OFF) { - index = drv->safe_state_index; - cx = &omap4_idle_data[index]; + if (dev->cpu == 0 && cpumask_test_cpu(1, cpu_online_mask)) { + while (pwrdm_read_pwrst(cpu_pd[1]) != PWRDM_POWER_OFF) { + cpu_relax(); + + /* + * CPU1 could have already entered & exited idle + * without hitting off because of a wakeup + * or a failed attempt to hit off mode. Check for + * that here, otherwise we could spin forever + * waiting for CPU1 off. + */ + if (cpu_done[1]) + goto fail; + + } } - if (index > 0) - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu_id); + clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu_id); /* * Call idle CPU PM enter notifier chain so that * VFP and per CPU interrupt context is saved. */ - if (cx->cpu_state == PWRDM_POWER_OFF) - cpu_pm_enter(); - - pwrdm_set_logic_retst(mpu_pd, cx->mpu_logic_state); - omap_set_pwrdm_state(mpu_pd, cx->mpu_state); - - /* - * Call idle CPU cluster PM enter notifier chain - * to save GIC and wakeupgen context. - */ - if ((cx->mpu_state == PWRDM_POWER_RET) && - (cx->mpu_logic_state == PWRDM_POWER_OFF)) - cpu_cluster_pm_enter(); + cpu_pm_enter(); + + if (dev->cpu == 0) { + pwrdm_set_logic_retst(mpu_pd, cx->mpu_logic_state); + omap_set_pwrdm_state(mpu_pd, cx->mpu_state); + + /* + * Call idle CPU cluster PM enter notifier chain + * to save GIC and wakeupgen context. + */ + if ((cx->mpu_state == PWRDM_POWER_RET) && + (cx->mpu_logic_state == PWRDM_POWER_OFF)) + cpu_cluster_pm_enter(); + } omap4_enter_lowpower(dev->cpu, cx->cpu_state); + cpu_done[dev->cpu] = true; + + /* Wakeup CPU1 only if it is not offlined */ + if (dev->cpu == 0 && cpumask_test_cpu(1, cpu_online_mask)) { + clkdm_wakeup(cpu_clkdm[1]); + clkdm_allow_idle(cpu_clkdm[1]); + } /* * Call idle CPU PM exit notifier chain to restore - * VFP and per CPU IRQ context. Only CPU0 state is - * considered since CPU1 is managed by CPU hotplug. + * VFP and per CPU IRQ context. */ - if (pwrdm_read_prev_pwrst(cpu0_pd) == PWRDM_POWER_OFF) - cpu_pm_exit(); + cpu_pm_exit(); /* * Call idle CPU cluster PM exit notifier chain @@ -121,8 +150,11 @@ static int omap4_enter_idle(struct cpuidle_device *dev, if (omap4_mpuss_read_prev_context_state()) cpu_cluster_pm_exit(); - if (index > 0) - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id); + clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id); + +fail: + cpuidle_coupled_parallel_barrier(dev, &abort_barrier); + cpu_done[dev->cpu] = false; local_fiq_enable(); @@ -141,7 +173,7 @@ struct cpuidle_driver omap4_idle_driver = { .exit_latency = 2 + 2, .target_residency = 5, .flags = CPUIDLE_FLAG_TIME_VALID, - .enter = omap4_enter_idle, + .enter = omap4_enter_idle_simple, .name = "C1", .desc = "MPUSS ON" }, @@ -149,8 +181,8 @@ struct cpuidle_driver omap4_idle_driver = { /* C2 - CPU0 OFF + CPU1 OFF + MPU CSWR */ .exit_latency = 328 + 440, .target_residency = 960, - .flags = CPUIDLE_FLAG_TIME_VALID, - .enter = omap4_enter_idle, + .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED, + .enter = omap4_enter_idle_coupled, .name = "C2", .desc = "MPUSS CSWR", }, @@ -158,8 +190,8 @@ struct cpuidle_driver omap4_idle_driver = { /* C3 - CPU0 OFF + CPU1 OFF + MPU OSWR */ .exit_latency = 460 + 518, .target_residency = 1100, - .flags = CPUIDLE_FLAG_TIME_VALID, - .enter = omap4_enter_idle, + .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED, + .enter = omap4_enter_idle_coupled, .name = "C3", .desc = "MPUSS OSWR", }, @@ -168,6 +200,16 @@ struct cpuidle_driver omap4_idle_driver = { .safe_state_index = 0, }; +/* + * For each cpu, setup the broadcast timer because local timers + * stops for the states above C1. + */ +static void omap_setup_broadcast_timer(void *arg) +{ + int cpu = smp_processor_id(); + clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu); +} + /** * omap4_idle_init - Init routine for OMAP4 idle * @@ -180,19 +222,30 @@ int __init omap4_idle_init(void) unsigned int cpu_id = 0; mpu_pd = pwrdm_lookup("mpu_pwrdm"); - cpu0_pd = pwrdm_lookup("cpu0_pwrdm"); - cpu1_pd = pwrdm_lookup("cpu1_pwrdm"); - if ((!mpu_pd) || (!cpu0_pd) || (!cpu1_pd)) + cpu_pd[0] = pwrdm_lookup("cpu0_pwrdm"); + cpu_pd[1] = pwrdm_lookup("cpu1_pwrdm"); + if ((!mpu_pd) || (!cpu_pd[0]) || (!cpu_pd[1])) return -ENODEV; - dev = &per_cpu(omap4_idle_dev, cpu_id); - dev->cpu = cpu_id; + cpu_clkdm[0] = clkdm_lookup("mpu0_clkdm"); + cpu_clkdm[1] = clkdm_lookup("mpu1_clkdm"); + if (!cpu_clkdm[0] || !cpu_clkdm[1]) + return -ENODEV; + + /* Configure the broadcast timer on each cpu */ + on_each_cpu(omap_setup_broadcast_timer, NULL, 1); + + for_each_cpu(cpu_id, cpu_online_mask) { + dev = &per_cpu(omap4_idle_dev, cpu_id); + dev->cpu = cpu_id; + dev->coupled_cpus = *cpu_online_mask; - cpuidle_register_driver(&omap4_idle_driver); + cpuidle_register_driver(&omap4_idle_driver); - if (cpuidle_register_device(dev)) { - pr_err("%s: CPUidle register device failed\n", __func__); - return -EIO; + if (cpuidle_register_device(dev)) { + pr_err("%s: CPUidle register failed\n", __func__); + return -EIO; + } } return 0; diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 5fb47a1..af1ed7d 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -37,6 +37,7 @@ #define DISPC_CONTROL 0x0040 #define DISPC_CONTROL2 0x0238 +#define DISPC_CONTROL3 0x0848 #define DISPC_IRQSTATUS 0x0018 #define DSS_SYSCONFIG 0x10 @@ -52,6 +53,7 @@ #define EVSYNC_EVEN_IRQ_SHIFT 2 #define EVSYNC_ODD_IRQ_SHIFT 3 #define FRAMEDONE2_IRQ_SHIFT 22 +#define FRAMEDONE3_IRQ_SHIFT 30 #define FRAMEDONETV_IRQ_SHIFT 24 /* @@ -376,7 +378,7 @@ int __init omap_display_init(struct omap_dss_board_info *board_data) static void dispc_disable_outputs(void) { u32 v, irq_mask = 0; - bool lcd_en, digit_en, lcd2_en = false; + bool lcd_en, digit_en, lcd2_en = false, lcd3_en = false; int i; struct omap_dss_dispc_dev_attr *da; struct omap_hwmod *oh; @@ -405,7 +407,13 @@ static void dispc_disable_outputs(void) lcd2_en = v & LCD_EN_MASK; } - if (!(lcd_en | digit_en | lcd2_en)) + /* store value of LCDENABLE for LCD3 */ + if (da->manager_count > 3) { + v = omap_hwmod_read(oh, DISPC_CONTROL3); + lcd3_en = v & LCD_EN_MASK; + } + + if (!(lcd_en | digit_en | lcd2_en | lcd3_en)) return; /* no managers currently enabled */ /* @@ -426,10 +434,12 @@ static void dispc_disable_outputs(void) if (lcd2_en) irq_mask |= 1 << FRAMEDONE2_IRQ_SHIFT; + if (lcd3_en) + irq_mask |= 1 << FRAMEDONE3_IRQ_SHIFT; /* * clear any previous FRAMEDONE, FRAMEDONETV, - * EVSYNC_EVEN/ODD or FRAMEDONE2 interrupts + * EVSYNC_EVEN/ODD, FRAMEDONE2 or FRAMEDONE3 interrupts */ omap_hwmod_write(irq_mask, oh, DISPC_IRQSTATUS); @@ -445,12 +455,19 @@ static void dispc_disable_outputs(void) omap_hwmod_write(v, oh, DISPC_CONTROL2); } + /* disable LCD3 manager */ + if (da->manager_count > 3) { + v = omap_hwmod_read(oh, DISPC_CONTROL3); + v &= ~LCD_EN_MASK; + omap_hwmod_write(v, oh, DISPC_CONTROL3); + } + i = 0; while ((omap_hwmod_read(oh, DISPC_IRQSTATUS) & irq_mask) != irq_mask) { i++; if (i > FRAMEDONE_IRQ_TIMEOUT) { - pr_err("didn't get FRAMEDONE1/2 or TV interrupt\n"); + pr_err("didn't get FRAMEDONE1/2/3 or TV interrupt\n"); break; } mdelay(1); diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index be697d4..a9675d8 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -315,7 +315,6 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c, mmc->slots[0].caps = c->caps; mmc->slots[0].pm_caps = c->pm_caps; mmc->slots[0].internal_clock = !c->ext_clock; - mmc->dma_mask = 0xffffffff; mmc->max_freq = c->max_freq; if (cpu_is_omap44xx()) mmc->reg_offset = OMAP4_MMC_REG_OFFSET; diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index 13d20c8..2ff6d41 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -130,6 +130,7 @@ static struct clock_event_device clockevent_gpt = { .name = "gp_timer", .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .shift = 32, + .rating = 300, .set_next_event = omap2_gp_timer_set_next_event, .set_mode = omap2_gp_timer_set_mode, }; @@ -223,7 +224,8 @@ static void __init omap2_gp_clockevent_init(int gptimer_id, clockevent_delta2ns(3, &clockevent_gpt); /* Timer internal resynch latency. */ - clockevent_gpt.cpumask = cpumask_of(0); + clockevent_gpt.cpumask = cpu_possible_mask; + clockevent_gpt.irq = omap_dm_timer_get_irq(&clkev); clockevents_register_device(&clockevent_gpt); pr_info("OMAP clockevent source: GPTIMER%d at %lu Hz\n", diff --git a/arch/arm/mach-orion5x/irq.c b/arch/arm/mach-orion5x/irq.c index b1b45ff..17da709 100644 --- a/arch/arm/mach-orion5x/irq.c +++ b/arch/arm/mach-orion5x/irq.c @@ -11,19 +11,16 @@ */ #include #include -#include #include -#include #include #include -#include "common.h" -static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - BUG_ON(irq < IRQ_ORION5X_GPIO_0_7 || irq > IRQ_ORION5X_GPIO_24_31); - - orion_gpio_irq_handler((irq - IRQ_ORION5X_GPIO_0_7) << 3); -} +static int __initdata gpio0_irqs[4] = { + IRQ_ORION5X_GPIO_0_7, + IRQ_ORION5X_GPIO_8_15, + IRQ_ORION5X_GPIO_16_23, + IRQ_ORION5X_GPIO_24_31, +}; void __init orion5x_init_irq(void) { @@ -32,9 +29,6 @@ void __init orion5x_init_irq(void) /* * Initialize gpiolib for GPIOs 0-31. */ - orion_gpio_init(0, 32, GPIO_VIRT_BASE, 0, IRQ_ORION5X_GPIO_START); - irq_set_chained_handler(IRQ_ORION5X_GPIO_0_7, gpio_irq_handler); - irq_set_chained_handler(IRQ_ORION5X_GPIO_8_15, gpio_irq_handler); - irq_set_chained_handler(IRQ_ORION5X_GPIO_16_23, gpio_irq_handler); - irq_set_chained_handler(IRQ_ORION5X_GPIO_24_31, gpio_irq_handler); + orion_gpio_init(NULL, 0, 32, (void __iomem *)GPIO_VIRT_BASE, 0, + IRQ_ORION5X_GPIO_START, gpio0_irqs); } diff --git a/arch/arm/mach-prima2/timer.c b/arch/arm/mach-prima2/timer.c index 0d024b1..f224107 100644 --- a/arch/arm/mach-prima2/timer.c +++ b/arch/arm/mach-prima2/timer.c @@ -132,11 +132,11 @@ static void sirfsoc_clocksource_resume(struct clocksource *cs) { int i; - for (i = 0; i < SIRFSOC_TIMER_REG_CNT; i++) + for (i = 0; i < SIRFSOC_TIMER_REG_CNT - 2; i++) writel_relaxed(sirfsoc_timer_reg_val[i], sirfsoc_timer_base + sirfsoc_timer_reg_list[i]); - writel_relaxed(sirfsoc_timer_reg_val[i - 2], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_LO); - writel_relaxed(sirfsoc_timer_reg_val[i - 1], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_HI); + writel_relaxed(sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT - 2], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_LO); + writel_relaxed(sirfsoc_timer_reg_val[SIRFSOC_TIMER_REG_CNT - 1], sirfsoc_timer_base + SIRFSOC_TIMER_COUNTER_HI); } static struct clock_event_device sirfsoc_clockevent = { diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index 6bb3f47..0ca0db7 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -456,7 +456,7 @@ static int lubbock_mci_init(struct device *dev, init_timer(&mmc_timer); mmc_timer.data = (unsigned long) data; return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int, - IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data); + 0, "lubbock-sd-detect", data); } static int lubbock_mci_get_ro(struct device *dev) diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c index 2db697c..39561dc 100644 --- a/arch/arm/mach-pxa/magician.c +++ b/arch/arm/mach-pxa/magician.c @@ -633,9 +633,8 @@ static struct platform_device bq24022 = { static int magician_mci_init(struct device *dev, irq_handler_t detect_irq, void *data) { - return request_irq(IRQ_MAGICIAN_SD, detect_irq, - IRQF_DISABLED | IRQF_SAMPLE_RANDOM, - "mmc card detect", data); + return request_irq(IRQ_MAGICIAN_SD, detect_irq, IRQF_DISABLED, + "mmc card detect", data); } static void magician_mci_exit(struct device *dev, void *data) diff --git a/arch/arm/mach-pxa/trizeps4.c b/arch/arm/mach-pxa/trizeps4.c index 2b6ac00..166dd32 100644 --- a/arch/arm/mach-pxa/trizeps4.c +++ b/arch/arm/mach-pxa/trizeps4.c @@ -332,8 +332,8 @@ static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int, int err; err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SAMPLE_RANDOM, - "MMC card detect", data); + IRQF_DISABLED | IRQF_TRIGGER_RISING, + "MMC card detect", data); if (err) { printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request" "MMC card detect IRQ\n"); diff --git a/arch/arm/mach-spear3xx/spear300.c b/arch/arm/mach-spear3xx/spear300.c index 0f882ec..6ec3005 100644 --- a/arch/arm/mach-spear3xx/spear300.c +++ b/arch/arm/mach-spear3xx/spear300.c @@ -120,182 +120,156 @@ struct pl08x_channel_data spear300_dma_info[] = { .min_signal = 2, .max_signal = 2, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart0_tx", .min_signal = 3, .max_signal = 3, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_rx", .min_signal = 8, .max_signal = 8, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_tx", .min_signal = 9, .max_signal = 9, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c_rx", .min_signal = 10, .max_signal = 10, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c_tx", .min_signal = 11, .max_signal = 11, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "irda", .min_signal = 12, .max_signal = 12, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "adc", .min_signal = 13, .max_signal = 13, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "to_jpeg", .min_signal = 14, .max_signal = 14, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "from_jpeg", .min_signal = 15, .max_signal = 15, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras0_rx", .min_signal = 0, .max_signal = 0, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras0_tx", .min_signal = 1, .max_signal = 1, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras1_rx", .min_signal = 2, .max_signal = 2, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras1_tx", .min_signal = 3, .max_signal = 3, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras2_rx", .min_signal = 4, .max_signal = 4, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras2_tx", .min_signal = 5, .max_signal = 5, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras3_rx", .min_signal = 6, .max_signal = 6, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras3_tx", .min_signal = 7, .max_signal = 7, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras4_rx", .min_signal = 8, .max_signal = 8, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras4_tx", .min_signal = 9, .max_signal = 9, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras5_rx", .min_signal = 10, .max_signal = 10, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras5_tx", .min_signal = 11, .max_signal = 11, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras6_rx", .min_signal = 12, .max_signal = 12, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras6_tx", .min_signal = 13, .max_signal = 13, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras7_rx", .min_signal = 14, .max_signal = 14, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras7_tx", .min_signal = 15, .max_signal = 15, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, }; diff --git a/arch/arm/mach-spear3xx/spear310.c b/arch/arm/mach-spear3xx/spear310.c index bbcf457..1d0e435 100644 --- a/arch/arm/mach-spear3xx/spear310.c +++ b/arch/arm/mach-spear3xx/spear310.c @@ -205,182 +205,156 @@ struct pl08x_channel_data spear310_dma_info[] = { .min_signal = 2, .max_signal = 2, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart0_tx", .min_signal = 3, .max_signal = 3, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_rx", .min_signal = 8, .max_signal = 8, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_tx", .min_signal = 9, .max_signal = 9, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c_rx", .min_signal = 10, .max_signal = 10, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c_tx", .min_signal = 11, .max_signal = 11, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "irda", .min_signal = 12, .max_signal = 12, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "adc", .min_signal = 13, .max_signal = 13, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "to_jpeg", .min_signal = 14, .max_signal = 14, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "from_jpeg", .min_signal = 15, .max_signal = 15, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart1_rx", .min_signal = 0, .max_signal = 0, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart1_tx", .min_signal = 1, .max_signal = 1, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart2_rx", .min_signal = 2, .max_signal = 2, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart2_tx", .min_signal = 3, .max_signal = 3, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart3_rx", .min_signal = 4, .max_signal = 4, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart3_tx", .min_signal = 5, .max_signal = 5, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart4_rx", .min_signal = 6, .max_signal = 6, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart4_tx", .min_signal = 7, .max_signal = 7, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart5_rx", .min_signal = 8, .max_signal = 8, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart5_tx", .min_signal = 9, .max_signal = 9, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras5_rx", .min_signal = 10, .max_signal = 10, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras5_tx", .min_signal = 11, .max_signal = 11, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras6_rx", .min_signal = 12, .max_signal = 12, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras6_tx", .min_signal = 13, .max_signal = 13, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras7_rx", .min_signal = 14, .max_signal = 14, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras7_tx", .min_signal = 15, .max_signal = 15, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, }; diff --git a/arch/arm/mach-spear3xx/spear320.c b/arch/arm/mach-spear3xx/spear320.c index 88d483b..fd823c6 100644 --- a/arch/arm/mach-spear3xx/spear320.c +++ b/arch/arm/mach-spear3xx/spear320.c @@ -213,182 +213,156 @@ struct pl08x_channel_data spear320_dma_info[] = { .min_signal = 2, .max_signal = 2, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart0_tx", .min_signal = 3, .max_signal = 3, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_rx", .min_signal = 8, .max_signal = 8, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_tx", .min_signal = 9, .max_signal = 9, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c0_rx", .min_signal = 10, .max_signal = 10, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c0_tx", .min_signal = 11, .max_signal = 11, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "irda", .min_signal = 12, .max_signal = 12, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "adc", .min_signal = 13, .max_signal = 13, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "to_jpeg", .min_signal = 14, .max_signal = 14, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "from_jpeg", .min_signal = 15, .max_signal = 15, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp1_rx", .min_signal = 0, .max_signal = 0, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ssp1_tx", .min_signal = 1, .max_signal = 1, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ssp2_rx", .min_signal = 2, .max_signal = 2, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ssp2_tx", .min_signal = 3, .max_signal = 3, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "uart1_rx", .min_signal = 4, .max_signal = 4, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "uart1_tx", .min_signal = 5, .max_signal = 5, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "uart2_rx", .min_signal = 6, .max_signal = 6, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "uart2_tx", .min_signal = 7, .max_signal = 7, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "i2c1_rx", .min_signal = 8, .max_signal = 8, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "i2c1_tx", .min_signal = 9, .max_signal = 9, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "i2c2_rx", .min_signal = 10, .max_signal = 10, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "i2c2_tx", .min_signal = 11, .max_signal = 11, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "i2s_rx", .min_signal = 12, .max_signal = 12, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "i2s_tx", .min_signal = 13, .max_signal = 13, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "rs485_rx", .min_signal = 14, .max_signal = 14, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "rs485_tx", .min_signal = 15, .max_signal = 15, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB2, }, }; diff --git a/arch/arm/mach-spear3xx/spear3xx.c b/arch/arm/mach-spear3xx/spear3xx.c index 66db5f1..98144ba 100644 --- a/arch/arm/mach-spear3xx/spear3xx.c +++ b/arch/arm/mach-spear3xx/spear3xx.c @@ -46,7 +46,8 @@ struct pl022_ssp_controller pl022_plat_data = { struct pl08x_platform_data pl080_plat_data = { .memcpy_channel = { .bus_id = "memcpy", - .cctl = (PL080_BSIZE_16 << PL080_CONTROL_SB_SIZE_SHIFT | \ + .cctl_memcpy = + (PL080_BSIZE_16 << PL080_CONTROL_SB_SIZE_SHIFT | \ PL080_BSIZE_16 << PL080_CONTROL_DB_SIZE_SHIFT | \ PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT | \ PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT | \ diff --git a/arch/arm/mach-spear6xx/spear6xx.c b/arch/arm/mach-spear6xx/spear6xx.c index 9af67d0..5a5a52d 100644 --- a/arch/arm/mach-spear6xx/spear6xx.c +++ b/arch/arm/mach-spear6xx/spear6xx.c @@ -36,336 +36,288 @@ static struct pl08x_channel_data spear600_dma_info[] = { .min_signal = 0, .max_signal = 0, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp1_tx", .min_signal = 1, .max_signal = 1, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart0_rx", .min_signal = 2, .max_signal = 2, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart0_tx", .min_signal = 3, .max_signal = 3, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart1_rx", .min_signal = 4, .max_signal = 4, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "uart1_tx", .min_signal = 5, .max_signal = 5, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp2_rx", .min_signal = 6, .max_signal = 6, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ssp2_tx", .min_signal = 7, .max_signal = 7, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ssp0_rx", .min_signal = 8, .max_signal = 8, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ssp0_tx", .min_signal = 9, .max_signal = 9, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c_rx", .min_signal = 10, .max_signal = 10, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "i2c_tx", .min_signal = 11, .max_signal = 11, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "irda", .min_signal = 12, .max_signal = 12, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "adc", .min_signal = 13, .max_signal = 13, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "to_jpeg", .min_signal = 14, .max_signal = 14, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "from_jpeg", .min_signal = 15, .max_signal = 15, .muxval = 0, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras0_rx", .min_signal = 0, .max_signal = 0, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras0_tx", .min_signal = 1, .max_signal = 1, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras1_rx", .min_signal = 2, .max_signal = 2, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras1_tx", .min_signal = 3, .max_signal = 3, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras2_rx", .min_signal = 4, .max_signal = 4, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras2_tx", .min_signal = 5, .max_signal = 5, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras3_rx", .min_signal = 6, .max_signal = 6, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras3_tx", .min_signal = 7, .max_signal = 7, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras4_rx", .min_signal = 8, .max_signal = 8, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras4_tx", .min_signal = 9, .max_signal = 9, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras5_rx", .min_signal = 10, .max_signal = 10, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras5_tx", .min_signal = 11, .max_signal = 11, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras6_rx", .min_signal = 12, .max_signal = 12, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras6_tx", .min_signal = 13, .max_signal = 13, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras7_rx", .min_signal = 14, .max_signal = 14, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ras7_tx", .min_signal = 15, .max_signal = 15, .muxval = 1, - .cctl = 0, .periph_buses = PL08X_AHB1, }, { .bus_id = "ext0_rx", .min_signal = 0, .max_signal = 0, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext0_tx", .min_signal = 1, .max_signal = 1, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext1_rx", .min_signal = 2, .max_signal = 2, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext1_tx", .min_signal = 3, .max_signal = 3, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext2_rx", .min_signal = 4, .max_signal = 4, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext2_tx", .min_signal = 5, .max_signal = 5, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext3_rx", .min_signal = 6, .max_signal = 6, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext3_tx", .min_signal = 7, .max_signal = 7, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext4_rx", .min_signal = 8, .max_signal = 8, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext4_tx", .min_signal = 9, .max_signal = 9, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext5_rx", .min_signal = 10, .max_signal = 10, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext5_tx", .min_signal = 11, .max_signal = 11, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext6_rx", .min_signal = 12, .max_signal = 12, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext6_tx", .min_signal = 13, .max_signal = 13, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext7_rx", .min_signal = 14, .max_signal = 14, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, { .bus_id = "ext7_tx", .min_signal = 15, .max_signal = 15, .muxval = 2, - .cctl = 0, .periph_buses = PL08X_AHB2, }, }; @@ -373,7 +325,8 @@ static struct pl08x_channel_data spear600_dma_info[] = { struct pl08x_platform_data pl080_plat_data = { .memcpy_channel = { .bus_id = "memcpy", - .cctl = (PL080_BSIZE_16 << PL080_CONTROL_SB_SIZE_SHIFT | \ + .cctl_memcpy = + (PL080_BSIZE_16 << PL080_CONTROL_SB_SIZE_SHIFT | \ PL080_BSIZE_16 << PL080_CONTROL_DB_SIZE_SHIFT | \ PL080_WIDTH_32BIT << PL080_CONTROL_SWIDTH_SHIFT | \ PL080_WIDTH_32BIT << PL080_CONTROL_DWIDTH_SHIFT | \ diff --git a/arch/arm/mm/tlb-v7.S b/arch/arm/mm/tlb-v7.S index 845f461..c202113 100644 --- a/arch/arm/mm/tlb-v7.S +++ b/arch/arm/mm/tlb-v7.S @@ -38,11 +38,19 @@ ENTRY(v7wbi_flush_user_tlb_range) dsb mov r0, r0, lsr #PAGE_SHIFT @ align address mov r1, r1, lsr #PAGE_SHIFT +#ifdef CONFIG_ARM_ERRATA_720789 + mov r3, #0 +#else asid r3, r3 @ mask ASID +#endif orr r0, r3, r0, lsl #PAGE_SHIFT @ Create initial MVA mov r1, r1, lsl #PAGE_SHIFT 1: +#ifdef CONFIG_ARM_ERRATA_720789 + ALT_SMP(mcr p15, 0, r0, c8, c3, 3) @ TLB invalidate U MVA all ASID (shareable) +#else ALT_SMP(mcr p15, 0, r0, c8, c3, 1) @ TLB invalidate U MVA (shareable) +#endif ALT_UP(mcr p15, 0, r0, c8, c7, 1) @ TLB invalidate U MVA add r0, r0, #PAGE_SZ @@ -67,7 +75,11 @@ ENTRY(v7wbi_flush_kern_tlb_range) mov r0, r0, lsl #PAGE_SHIFT mov r1, r1, lsl #PAGE_SHIFT 1: +#ifdef CONFIG_ARM_ERRATA_720789 + ALT_SMP(mcr p15, 0, r0, c8, c3, 3) @ TLB invalidate U MVA all ASID (shareable) +#else ALT_SMP(mcr p15, 0, r0, c8, c3, 1) @ TLB invalidate U MVA (shareable) +#endif ALT_UP(mcr p15, 0, r0, c8, c7, 1) @ TLB invalidate U MVA add r0, r0, #PAGE_SZ cmp r0, r1 diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c index c219317..3ed1adb 100644 --- a/arch/arm/plat-mxc/tzic.c +++ b/arch/arm/plat-mxc/tzic.c @@ -23,6 +23,7 @@ #include #include +#include #include "irq-common.h" diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h index 5493bd9..eb3e4d5 100644 --- a/arch/arm/plat-omap/include/plat/mmc.h +++ b/arch/arm/plat-omap/include/plat/mmc.h @@ -81,8 +81,6 @@ struct omap_mmc_platform_data { /* Return context loss count due to PM states changing */ int (*get_context_loss_count)(struct device *dev); - u64 dma_mask; - /* Integrating attributes from the omap_hwmod layer */ u8 controller_flags; diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c index c179378..d245a87 100644 --- a/arch/arm/plat-orion/common.c +++ b/arch/arm/plat-orion/common.c @@ -47,6 +47,7 @@ void __init orion_clkdev_init(struct clk *tclk) orion_clkdev_add(NULL, MV643XX_ETH_NAME ".2", tclk); orion_clkdev_add(NULL, MV643XX_ETH_NAME ".3", tclk); orion_clkdev_add(NULL, "orion_wdt", tclk); + orion_clkdev_add(NULL, MV64XXX_I2C_CTLR_NAME ".0", tclk); } /* Fill in the resources structure and link it into the platform diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c index af95af2..dfda74f 100644 --- a/arch/arm/plat-orion/gpio.c +++ b/arch/arm/plat-orion/gpio.c @@ -8,15 +8,22 @@ * warranty of any kind, whether express or implied. */ +#define DEBUG + #include #include #include +#include #include #include #include #include #include #include +#include +#include +#include +#include /* * GPIO unit register offsets. @@ -38,6 +45,7 @@ struct orion_gpio_chip { unsigned long valid_output; int mask_offset; int secondary_irq_base; + struct irq_domain *domain; }; static void __iomem *GPIO_OUT(struct orion_gpio_chip *ochip) @@ -222,10 +230,10 @@ static int orion_gpio_to_irq(struct gpio_chip *chip, unsigned pin) struct orion_gpio_chip *ochip = container_of(chip, struct orion_gpio_chip, chip); - return ochip->secondary_irq_base + pin; + return irq_create_mapping(ochip->domain, + ochip->secondary_irq_base + pin); } - /* * Orion-specific GPIO API extensions. */ @@ -353,12 +361,10 @@ static int gpio_irq_set_type(struct irq_data *d, u32 type) int pin; u32 u; - pin = d->irq - gc->irq_base; + pin = d->hwirq - ochip->secondary_irq_base; u = readl(GPIO_IO_CONF(ochip)) & (1 << pin); if (!u) { - printk(KERN_ERR "orion gpio_irq_set_type failed " - "(irq %d, pin %d).\n", d->irq, pin); return -EINVAL; } @@ -397,17 +403,53 @@ static int gpio_irq_set_type(struct irq_data *d, u32 type) u &= ~(1 << pin); /* rising */ writel(u, GPIO_IN_POL(ochip)); } - return 0; } -void __init orion_gpio_init(int gpio_base, int ngpio, - u32 base, int mask_offset, int secondary_irq_base) +static void gpio_irq_handler(unsigned irq, struct irq_desc *desc) +{ + struct orion_gpio_chip *ochip = irq_get_handler_data(irq); + u32 cause, type; + int i; + + if (ochip == NULL) + return; + + cause = readl(GPIO_DATA_IN(ochip)) & readl(GPIO_LEVEL_MASK(ochip)); + cause |= readl(GPIO_EDGE_CAUSE(ochip)) & readl(GPIO_EDGE_MASK(ochip)); + + for (i = 0; i < ochip->chip.ngpio; i++) { + int irq; + + irq = ochip->secondary_irq_base + i; + + if (!(cause & (1 << i))) + continue; + + type = irqd_get_trigger_type(irq_get_irq_data(irq)); + if ((type & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) { + /* Swap polarity (race with GPIO line) */ + u32 polarity; + + polarity = readl(GPIO_IN_POL(ochip)); + polarity ^= 1 << i; + writel(polarity, GPIO_IN_POL(ochip)); + } + generic_handle_irq(irq); + } +} + +void __init orion_gpio_init(struct device_node *np, + int gpio_base, int ngpio, + void __iomem *base, int mask_offset, + int secondary_irq_base, + int irqs[4]) { struct orion_gpio_chip *ochip; struct irq_chip_generic *gc; struct irq_chip_type *ct; char gc_label[16]; + int i; if (orion_gpio_chip_count == ARRAY_SIZE(orion_gpio_chips)) return; @@ -426,6 +468,10 @@ void __init orion_gpio_init(int gpio_base, int ngpio, ochip->chip.base = gpio_base; ochip->chip.ngpio = ngpio; ochip->chip.can_sleep = 0; +#ifdef CONFIG_OF + ochip->chip.of_node = np; +#endif + spin_lock_init(&ochip->lock); ochip->base = (void __iomem *)base; ochip->valid_input = 0; @@ -435,8 +481,6 @@ void __init orion_gpio_init(int gpio_base, int ngpio, gpiochip_add(&ochip->chip); - orion_gpio_chip_count++; - /* * Mask and clear GPIO interrupts. */ @@ -444,16 +488,28 @@ void __init orion_gpio_init(int gpio_base, int ngpio, writel(0, GPIO_EDGE_MASK(ochip)); writel(0, GPIO_LEVEL_MASK(ochip)); - gc = irq_alloc_generic_chip("orion_gpio_irq", 2, secondary_irq_base, + /* Setup the interrupt handlers. Each chip can have up to 4 + * interrupt handlers, with each handler dealing with 8 GPIO + * pins. */ + + for (i = 0; i < 4; i++) { + if (irqs[i]) { + irq_set_handler_data(irqs[i], ochip); + irq_set_chained_handler(irqs[i], gpio_irq_handler); + } + } + + gc = irq_alloc_generic_chip("orion_gpio_irq", 2, + secondary_irq_base, ochip->base, handle_level_irq); gc->private = ochip; - ct = gc->chip_types; ct->regs.mask = ochip->mask_offset + GPIO_LEVEL_MASK_OFF; ct->type = IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW; ct->chip.irq_mask = irq_gc_mask_clr_bit; ct->chip.irq_unmask = irq_gc_mask_set_bit; ct->chip.irq_set_type = gpio_irq_set_type; + ct->chip.name = ochip->chip.label; ct++; ct->regs.mask = ochip->mask_offset + GPIO_EDGE_MASK_OFF; @@ -464,41 +520,69 @@ void __init orion_gpio_init(int gpio_base, int ngpio, ct->chip.irq_unmask = irq_gc_mask_set_bit; ct->chip.irq_set_type = gpio_irq_set_type; ct->handler = handle_edge_irq; + ct->chip.name = ochip->chip.label; irq_setup_generic_chip(gc, IRQ_MSK(ngpio), IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE); -} -void orion_gpio_irq_handler(int pinoff) -{ - struct orion_gpio_chip *ochip; - u32 cause, type; - int i; - - ochip = orion_gpio_chip_find(pinoff); - if (ochip == NULL) - return; - - cause = readl(GPIO_DATA_IN(ochip)) & readl(GPIO_LEVEL_MASK(ochip)); - cause |= readl(GPIO_EDGE_CAUSE(ochip)) & readl(GPIO_EDGE_MASK(ochip)); - - for (i = 0; i < ochip->chip.ngpio; i++) { - int irq; + /* Setup irq domain on top of the generic chip. */ + ochip->domain = irq_domain_add_legacy(np, + ochip->chip.ngpio, + ochip->secondary_irq_base, + ochip->secondary_irq_base, + &irq_domain_simple_ops, + ochip); + if (!ochip->domain) + panic("%s: couldn't allocate irq domain (DT).\n", + ochip->chip.label); - irq = ochip->secondary_irq_base + i; + orion_gpio_chip_count++; +} - if (!(cause & (1 << i))) - continue; +#ifdef CONFIG_OF +static void __init orion_gpio_of_init_one(struct device_node *np, + int irq_gpio_base) +{ + int ngpio, gpio_base, mask_offset; + void __iomem *base; + int ret, i; + int irqs[4]; + int secondary_irq_base; + + ret = of_property_read_u32(np, "ngpio", &ngpio); + if (ret) + goto out; + ret = of_property_read_u32(np, "mask-offset", &mask_offset); + if (ret == -EINVAL) + mask_offset = 0; + else + goto out; + base = of_iomap(np, 0); + if (!base) + goto out; + + secondary_irq_base = irq_gpio_base + (32 * orion_gpio_chip_count); + gpio_base = 32 * orion_gpio_chip_count; + + /* Get the interrupt numbers. Each chip can have up to 4 + * interrupt handlers, with each handler dealing with 8 GPIO + * pins. */ + + for (i = 0; i < 4; i++) + irqs[i] = irq_of_parse_and_map(np, i); + + orion_gpio_init(np, gpio_base, ngpio, base, mask_offset, + secondary_irq_base, irqs); + return; +out: + pr_err("%s: %s: missing mandatory property\n", __func__, np->name); +} - type = irqd_get_trigger_type(irq_get_irq_data(irq)); - if ((type & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) { - /* Swap polarity (race with GPIO line) */ - u32 polarity; +void __init orion_gpio_of_init(int irq_gpio_base) +{ + struct device_node *np; - polarity = readl(GPIO_IN_POL(ochip)); - polarity ^= 1 << i; - writel(polarity, GPIO_IN_POL(ochip)); - } - generic_handle_irq(irq); - } + for_each_compatible_node(np, NULL, "marvell,orion-gpio") + orion_gpio_of_init_one(np, irq_gpio_base); } +#endif diff --git a/arch/arm/plat-orion/include/plat/gpio.h b/arch/arm/plat-orion/include/plat/gpio.h index bec0c98..81c6fc8 100644 --- a/arch/arm/plat-orion/include/plat/gpio.h +++ b/arch/arm/plat-orion/include/plat/gpio.h @@ -13,7 +13,7 @@ #include #include - +#include /* * Orion-specific GPIO API extensions. */ @@ -27,13 +27,11 @@ int orion_gpio_led_blink_set(unsigned gpio, int state, void orion_gpio_set_valid(unsigned pin, int mode); /* Initialize gpiolib. */ -void __init orion_gpio_init(int gpio_base, int ngpio, - u32 base, int mask_offset, int secondary_irq_base); - -/* - * GPIO interrupt handling. - */ -void orion_gpio_irq_handler(int irqoff); - +void __init orion_gpio_init(struct device_node *np, + int gpio_base, int ngpio, + void __iomem *base, int mask_offset, + int secondary_irq_base, + int irq[4]); +void __init orion_gpio_of_init(int irq_gpio_base); #endif diff --git a/arch/arm/plat-orion/include/plat/irq.h b/arch/arm/plat-orion/include/plat/irq.h index f05eeab..50547e4 100644 --- a/arch/arm/plat-orion/include/plat/irq.h +++ b/arch/arm/plat-orion/include/plat/irq.h @@ -12,6 +12,5 @@ #define __PLAT_IRQ_H void orion_irq_init(unsigned int irq_start, void __iomem *maskaddr); - - +void __init orion_dt_init_irq(void); #endif diff --git a/arch/arm/plat-orion/irq.c b/arch/arm/plat-orion/irq.c index 2d5b9c1..d751964 100644 --- a/arch/arm/plat-orion/irq.c +++ b/arch/arm/plat-orion/irq.c @@ -11,8 +11,12 @@ #include #include #include +#include #include +#include +#include #include +#include void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr) { @@ -32,3 +36,39 @@ void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr) irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST, IRQ_LEVEL | IRQ_NOPROBE); } + +#ifdef CONFIG_OF +static int __init orion_add_irq_domain(struct device_node *np, + struct device_node *interrupt_parent) +{ + int i = 0, irq_gpio; + void __iomem *base; + + do { + base = of_iomap(np, i); + if (base) { + orion_irq_init(i * 32, base); + i++; + } + } while (base); + + irq_domain_add_legacy(np, i * 32, 0, 0, + &irq_domain_simple_ops, NULL); + + irq_gpio = i * 32; + orion_gpio_of_init(irq_gpio); + + return 0; +} + +static const struct of_device_id orion_irq_match[] = { + { .compatible = "marvell,orion-intc", + .data = orion_add_irq_domain, }, + {}, +}; + +void __init orion_dt_init_irq(void) +{ + of_irq_init(orion_irq_match); +} +#endif diff --git a/arch/arm/plat-spear/include/plat/pl080.h b/arch/arm/plat-spear/include/plat/pl080.h index 2bc6b54..eb6590d 100644 --- a/arch/arm/plat-spear/include/plat/pl080.h +++ b/arch/arm/plat-spear/include/plat/pl080.h @@ -14,8 +14,8 @@ #ifndef __PLAT_PL080_H #define __PLAT_PL080_H -struct pl08x_dma_chan; -int pl080_get_signal(struct pl08x_dma_chan *ch); -void pl080_put_signal(struct pl08x_dma_chan *ch); +struct pl08x_channel_data; +int pl080_get_signal(const struct pl08x_channel_data *cd); +void pl080_put_signal(const struct pl08x_channel_data *cd, int signal); #endif /* __PLAT_PL080_H */ diff --git a/arch/arm/plat-spear/pl080.c b/arch/arm/plat-spear/pl080.c index 12cf27f..cfa1199 100644 --- a/arch/arm/plat-spear/pl080.c +++ b/arch/arm/plat-spear/pl080.c @@ -27,9 +27,8 @@ struct { unsigned char val; } signals[16] = {{0, 0}, }; -int pl080_get_signal(struct pl08x_dma_chan *ch) +int pl080_get_signal(const struct pl08x_channel_data *cd) { - const struct pl08x_channel_data *cd = ch->cd; unsigned int signal = cd->min_signal, val; unsigned long flags; @@ -63,18 +62,17 @@ int pl080_get_signal(struct pl08x_dma_chan *ch) return signal; } -void pl080_put_signal(struct pl08x_dma_chan *ch) +void pl080_put_signal(const struct pl08x_channel_data *cd, int signal) { - const struct pl08x_channel_data *cd = ch->cd; unsigned long flags; spin_lock_irqsave(&lock, flags); /* if signal is not used */ - if (!signals[cd->min_signal].busy) + if (!signals[signal].busy) BUG(); - signals[cd->min_signal].busy--; + signals[signal].busy--; spin_unlock_irqrestore(&lock, flags); } diff --git a/arch/arm/vfp/entry.S b/arch/arm/vfp/entry.S index 4fa9903..cc926c9 100644 --- a/arch/arm/vfp/entry.S +++ b/arch/arm/vfp/entry.S @@ -7,18 +7,20 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * Basic entry code, called from the kernel's undefined instruction trap. - * r0 = faulted instruction - * r5 = faulted PC+4 - * r9 = successful return - * r10 = thread_info structure - * lr = failure return */ #include #include #include "../kernel/entry-header.S" +@ VFP entry point. +@ +@ r0 = instruction opcode (32-bit ARM or two 16-bit Thumb) +@ r2 = PC value to resume execution after successful emulation +@ r9 = normal "successful" return address +@ r10 = this threads thread_info structure +@ lr = unrecognised instruction return address +@ IRQs disabled. +@ ENTRY(do_vfp) #ifdef CONFIG_PREEMPT ldr r4, [r10, #TI_PREEMPT] @ get preempt count diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S index 2d30c7f..ea0349f 100644 --- a/arch/arm/vfp/vfphw.S +++ b/arch/arm/vfp/vfphw.S @@ -16,6 +16,7 @@ */ #include #include +#include #include "../kernel/entry-header.S" .macro DBGSTR, str @@ -24,7 +25,7 @@ add r0, pc, #4 bl printk b 1f - .asciz "<7>VFP: \str\n" + .asciz KERN_DEBUG "VFP: \str\n" .balign 4 1: ldmfd sp!, {r0-r3, ip, lr} #endif @@ -37,7 +38,7 @@ add r0, pc, #4 bl printk b 1f - .asciz "<7>VFP: \str\n" + .asciz KERN_DEBUG "VFP: \str\n" .balign 4 1: ldmfd sp!, {r0-r3, ip, lr} #endif @@ -52,7 +53,7 @@ add r0, pc, #4 bl printk b 1f - .asciz "<7>VFP: \str\n" + .asciz KERN_DEBUG "VFP: \str\n" .balign 4 1: ldmfd sp!, {r0-r3, ip, lr} #endif @@ -61,13 +62,13 @@ @ VFP hardware support entry point. @ -@ r0 = faulted instruction -@ r2 = faulted PC+4 -@ r9 = successful return +@ r0 = instruction opcode (32-bit ARM or two 16-bit Thumb) +@ r2 = PC value to resume execution after successful emulation +@ r9 = normal "successful" return address @ r10 = vfp_state union @ r11 = CPU number -@ lr = failure return - +@ lr = unrecognised instruction return address +@ IRQs enabled. ENTRY(vfp_support_entry) DBGSTR3 "instr %08x pc %08x state %p", r0, r2, r10 @@ -161,9 +162,12 @@ vfp_hw_state_valid: @ exception before retrying branch @ out before setting an FPEXC that @ stops us reading stuff - VFPFMXR FPEXC, r1 @ restore FPEXC last - sub r2, r2, #4 - str r2, [sp, #S_PC] @ retry the instruction + VFPFMXR FPEXC, r1 @ Restore FPEXC last + sub r2, r2, #4 @ Retry current instruction - if Thumb + str r2, [sp, #S_PC] @ mode it's two 16-bit instructions, + @ else it's one 32-bit instruction, so + @ always subtract 4 from the following + @ instruction address. #ifdef CONFIG_PREEMPT get_thread_info r10 ldr r4, [r10, #TI_PREEMPT] @ get preempt count diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 58696192..fb849d0 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -457,10 +457,16 @@ static int vfp_pm_suspend(void) /* disable, just in case */ fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN); + } else if (vfp_current_hw_state[ti->cpu]) { +#ifndef CONFIG_SMP + fmxr(FPEXC, fpexc | FPEXC_EN); + vfp_save_state(vfp_current_hw_state[ti->cpu], fpexc); + fmxr(FPEXC, fpexc); +#endif } /* clear any information we had about last context state */ - memset(vfp_current_hw_state, 0, sizeof(vfp_current_hw_state)); + vfp_current_hw_state[ti->cpu] = NULL; return 0; } diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index 71d38c7..5ade51c 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -12,6 +12,7 @@ config AVR32 select HARDIRQS_SW_RESEND select GENERIC_IRQ_SHOW select ARCH_HAVE_CUSTOM_GPIO_H + select ARCH_WANT_IPC_PARSE_VERSION select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_CLOCKEVENTS help diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c index dc52633..6c80aba 100644 --- a/arch/avr32/boards/atstk1000/atstk1002.c +++ b/arch/avr32/boards/atstk1000/atstk1002.c @@ -97,7 +97,7 @@ static struct atmel_nand_data atstk1006_nand_data __initdata = { .enable_pin = GPIO_PIN_PB(29), .ecc_mode = NAND_ECC_SOFT, .parts = nand_partitions, - .num_parts = ARRAY_SIZE(num_partitions), + .num_parts = ARRAY_SIZE(nand_partitions), }; #endif diff --git a/arch/avr32/include/asm/unistd.h b/arch/avr32/include/asm/unistd.h index f714544..1358e36 100644 --- a/arch/avr32/include/asm/unistd.h +++ b/arch/avr32/include/asm/unistd.h @@ -318,7 +318,6 @@ /* SMP stuff */ #define __IGNORE_getcpu -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_ALARM #define __ARCH_WANT_SYS_GETHOSTNAME diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c index f7040a1..b92e609 100644 --- a/arch/avr32/mm/fault.c +++ b/arch/avr32/mm/fault.c @@ -61,10 +61,10 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs) const struct exception_table_entry *fixup; unsigned long address; unsigned long page; - int writeaccess; long signr; int code; int fault; + unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE; if (notify_page_fault(regs, ecr)) return; @@ -86,6 +86,7 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs) local_irq_enable(); +retry: down_read(&mm->mmap_sem); vma = find_vma(mm, address); @@ -104,7 +105,6 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs) */ good_area: code = SEGV_ACCERR; - writeaccess = 0; switch (ecr) { case ECR_PROTECTION_X: @@ -121,7 +121,7 @@ good_area: case ECR_TLB_MISS_W: if (!(vma->vm_flags & VM_WRITE)) goto bad_area; - writeaccess = 1; + flags |= FAULT_FLAG_WRITE; break; default: panic("Unhandled case %lu in do_page_fault!", ecr); @@ -132,7 +132,11 @@ good_area: * sure we exit gracefully rather than endlessly redo the * fault. */ - fault = handle_mm_fault(mm, vma, address, writeaccess ? FAULT_FLAG_WRITE : 0); + fault = handle_mm_fault(mm, vma, address, flags); + + if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) + return; + if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) goto out_of_memory; @@ -140,10 +144,23 @@ good_area: goto do_sigbus; BUG(); } - if (fault & VM_FAULT_MAJOR) - tsk->maj_flt++; - else - tsk->min_flt++; + + if (flags & FAULT_FLAG_ALLOW_RETRY) { + if (fault & VM_FAULT_MAJOR) + tsk->maj_flt++; + else + tsk->min_flt++; + if (fault & VM_FAULT_RETRY) { + flags &= ~FAULT_FLAG_ALLOW_RETRY; + + /* + * No need to up_read(&mm->mmap_sem) as we would have + * already released it in __lock_page_or_retry() in + * mm/filemap.c. + */ + goto retry; + } + } up_read(&mm->mmap_sem); return; diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index ec44fc6..f348619 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -33,6 +33,7 @@ config BLACKFIN select HAVE_PERF_EVENTS select ARCH_HAVE_CUSTOM_GPIO_H select ARCH_WANT_OPTIONAL_GPIOLIB + select ARCH_WANT_IPC_PARSE_VERSION select HAVE_GENERIC_HARDIRQS select GENERIC_ATOMIC64 select GENERIC_IRQ_PROBE diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h index 3287222..5b2a074 100644 --- a/arch/blackfin/include/asm/unistd.h +++ b/arch/blackfin/include/asm/unistd.h @@ -434,7 +434,6 @@ #define __IGNORE_getcpu #ifdef __KERNEL__ -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_ALARM #define __ARCH_WANT_SYS_GETHOSTNAME diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index bb34465..e922154 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -42,6 +42,7 @@ config CRIS select HAVE_IDE select GENERIC_ATOMIC64 select HAVE_GENERIC_HARDIRQS + select ARCH_WANT_IPC_PARSE_VERSION select GENERIC_IRQ_SHOW select GENERIC_IOMAP select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32 diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h index f921b8b..51873a4 100644 --- a/arch/cris/include/asm/unistd.h +++ b/arch/cris/include/asm/unistd.h @@ -347,7 +347,6 @@ #include -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT #define __ARCH_WANT_STAT64 diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index a685910..971c0a1 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -9,6 +9,7 @@ config FRV select GENERIC_IRQ_SHOW select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_CPU_DEVICES + select ARCH_WANT_IPC_PARSE_VERSION config ZONE_DMA bool diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h index a569dff..67f23a3 100644 --- a/arch/frv/include/asm/unistd.h +++ b/arch/frv/include/asm/unistd.h @@ -349,7 +349,6 @@ #define NR_syscalls 338 -#define __ARCH_WANT_IPC_PARSE_VERSION /* #define __ARCH_WANT_OLD_READDIR */ #define __ARCH_WANT_OLD_STAT #define __ARCH_WANT_STAT64 diff --git a/arch/frv/kernel/kernel_thread.S b/arch/frv/kernel/kernel_thread.S index 4531c83..f0e5294 100644 --- a/arch/frv/kernel/kernel_thread.S +++ b/arch/frv/kernel/kernel_thread.S @@ -10,10 +10,10 @@ */ #include +#include #include #define CLONE_VM 0x00000100 /* set if VM shared between processes */ -#define KERN_ERR "<3>" .section .rodata kernel_thread_emsg: diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index 56e890d..5e8a0d9 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -3,6 +3,7 @@ config H8300 default y select HAVE_IDE select HAVE_GENERIC_HARDIRQS + select ARCH_WANT_IPC_PARSE_VERSION select GENERIC_IRQ_SHOW select GENERIC_CPU_DEVICES diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h index 7185113..5cd8828 100644 --- a/arch/h8300/include/asm/unistd.h +++ b/arch/h8300/include/asm/unistd.h @@ -331,7 +331,6 @@ #define NR_syscalls 321 -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT #define __ARCH_WANT_STAT64 diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 5c3e088..1034884 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -23,7 +23,6 @@ #include #include #include -#include /* for rand_initialize_irq() */ #include #include #include diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index d7f558c..3fa4bc5 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -2353,7 +2353,6 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t */ insert_vm_struct(mm, vma); - mm->total_vm += size >> PAGE_SHIFT; vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file, vma_pages(vma)); up_write(&task->mm->mmap_sem); diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index b638d5b..49498bb 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -7,6 +7,7 @@ config M32R select HAVE_KERNEL_GZIP select HAVE_KERNEL_BZIP2 select HAVE_KERNEL_LZMA + select ARCH_WANT_IPC_PARSE_VERSION select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h index 3e1db56..d5e66a4 100644 --- a/arch/m32r/include/asm/unistd.h +++ b/arch/m32r/include/asm/unistd.h @@ -336,7 +336,6 @@ #define NR_syscalls 326 -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_ALARM #define __ARCH_WANT_SYS_GETHOSTNAME diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 1471201..0b0f8b8 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -10,6 +10,7 @@ config M68K select GENERIC_STRNCPY_FROM_USER if MMU select GENERIC_STRNLEN_USER if MMU select FPU if MMU + select ARCH_WANT_IPC_PARSE_VERSION select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE config RWSEM_GENERIC_SPINLOCK diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index ea0b502..045cfd6 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -357,7 +357,6 @@ #define NR_syscalls 347 -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT #define __ARCH_WANT_STAT64 diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 0bf4423..ab9afca 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -15,6 +15,7 @@ config MICROBLAZE select TRACING_SUPPORT select OF select OF_EARLY_FLATTREE + select ARCH_WANT_IPC_PARSE_VERSION select IRQ_DOMAIN select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_PROBE diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h index d20ffbc..6985e6e 100644 --- a/arch/microblaze/include/asm/unistd.h +++ b/arch/microblaze/include/asm/unistd.h @@ -400,7 +400,6 @@ #ifdef __KERNEL__ #ifndef __ASSEMBLY__ -#define __ARCH_WANT_IPC_PARSE_VERSION /* #define __ARCH_WANT_OLD_READDIR */ /* #define __ARCH_WANT_OLD_STAT */ #define __ARCH_WANT_STAT64 diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 7504290..331d574 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -20,12 +20,14 @@ config MIPS select ARCH_BINFMT_ELF_RANDOMIZE_PIE select RTC_LIB if !MACH_LOONGSON select GENERIC_ATOMIC64 if !64BIT + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select HAVE_DMA_ATTRS select HAVE_DMA_API_DEBUG select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select HAVE_ARCH_JUMP_LABEL + select ARCH_WANT_IPC_PARSE_VERSION select IRQ_FORCED_THREADING select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP @@ -75,6 +77,7 @@ config AR7 select SYS_SUPPORTS_ZBOOT_UART16550 select ARCH_REQUIRE_GPIOLIB select VLYNQ + select HAVE_CLK help Support for the Texas Instruments AR7 System-on-a-Chip family: TNETD7100, 7200 and 7300. @@ -122,6 +125,7 @@ config BCM63XX select SYS_HAS_EARLY_PRINTK select SWAP_IO_SPACE select ARCH_REQUIRE_GPIOLIB + select HAVE_CLK help Support for BCM63XX based boards diff --git a/arch/mips/include/asm/clock.h b/arch/mips/include/asm/clock.h index 83894aa..c9456e7 100644 --- a/arch/mips/include/asm/clock.h +++ b/arch/mips/include/asm/clock.h @@ -50,15 +50,4 @@ void clk_recalc_rate(struct clk *); int clk_register(struct clk *); void clk_unregister(struct clk *); -/* the exported API, in addition to clk_set_rate */ -/** - * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter - * @clk: clock source - * @rate: desired clock rate in Hz - * @algo_id: algorithm id to be passed down to ops->set_rate - * - * Returns success (0) or negative errno. - */ -int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id); - #endif /* __ASM_MIPS_CLOCK_H */ diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h index 06367c3..5222a00 100644 --- a/arch/mips/include/asm/mach-loongson/loongson.h +++ b/arch/mips/include/asm/mach-loongson/loongson.h @@ -245,7 +245,6 @@ static inline void do_perfcnt_IRQ(void) #ifdef CONFIG_CPU_SUPPORTS_CPUFREQ #include -extern void loongson2_cpu_wait(void); extern struct cpufreq_frequency_table loongson2_clockmod_table[]; /* Chip Config */ diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h index d8dad53..bebbde0 100644 --- a/arch/mips/include/asm/unistd.h +++ b/arch/mips/include/asm/unistd.h @@ -1034,7 +1034,6 @@ #ifndef __ASSEMBLY__ #define __ARCH_OMIT_COMPAT_SYS_GETDENTS64 -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_SYS_ALARM #define __ARCH_WANT_SYS_GETHOSTNAME diff --git a/arch/mips/kernel/cpufreq/Makefile b/arch/mips/kernel/cpufreq/Makefile index c3479a43..05a5715 100644 --- a/arch/mips/kernel/cpufreq/Makefile +++ b/arch/mips/kernel/cpufreq/Makefile @@ -2,4 +2,4 @@ # Makefile for the Linux/MIPS cpufreq. # -obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o loongson2_clock.o +obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o diff --git a/arch/mips/kernel/cpufreq/loongson2_clock.c b/arch/mips/kernel/cpufreq/loongson2_clock.c deleted file mode 100644 index 5426779..0000000 --- a/arch/mips/kernel/cpufreq/loongson2_clock.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * Copyright (C) 2006 - 2008 Lemote Inc. & Insititute of Computing Technology - * Author: Yanhua, yanh@lemote.com - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#include -#include -#include - -#include - -#include - -static LIST_HEAD(clock_list); -static DEFINE_SPINLOCK(clock_lock); -static DEFINE_MUTEX(clock_list_sem); - -/* Minimum CLK support */ -enum { - DC_ZERO, DC_25PT = 2, DC_37PT, DC_50PT, DC_62PT, DC_75PT, - DC_87PT, DC_DISABLE, DC_RESV -}; - -struct cpufreq_frequency_table loongson2_clockmod_table[] = { - {DC_RESV, CPUFREQ_ENTRY_INVALID}, - {DC_ZERO, CPUFREQ_ENTRY_INVALID}, - {DC_25PT, 0}, - {DC_37PT, 0}, - {DC_50PT, 0}, - {DC_62PT, 0}, - {DC_75PT, 0}, - {DC_87PT, 0}, - {DC_DISABLE, 0}, - {DC_RESV, CPUFREQ_TABLE_END}, -}; -EXPORT_SYMBOL_GPL(loongson2_clockmod_table); - -static struct clk cpu_clk = { - .name = "cpu_clk", - .flags = CLK_ALWAYS_ENABLED | CLK_RATE_PROPAGATES, - .rate = 800000000, -}; - -struct clk *clk_get(struct device *dev, const char *id) -{ - return &cpu_clk; -} -EXPORT_SYMBOL(clk_get); - -static void propagate_rate(struct clk *clk) -{ - struct clk *clkp; - - list_for_each_entry(clkp, &clock_list, node) { - if (likely(clkp->parent != clk)) - continue; - if (likely(clkp->ops && clkp->ops->recalc)) - clkp->ops->recalc(clkp); - if (unlikely(clkp->flags & CLK_RATE_PROPAGATES)) - propagate_rate(clkp); - } -} - -int clk_enable(struct clk *clk) -{ - return 0; -} -EXPORT_SYMBOL(clk_enable); - -void clk_disable(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_disable); - -unsigned long clk_get_rate(struct clk *clk) -{ - return (unsigned long)clk->rate; -} -EXPORT_SYMBOL(clk_get_rate); - -void clk_put(struct clk *clk) -{ -} -EXPORT_SYMBOL(clk_put); - -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - return clk_set_rate_ex(clk, rate, 0); -} -EXPORT_SYMBOL_GPL(clk_set_rate); - -int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id) -{ - int ret = 0; - int regval; - int i; - - if (likely(clk->ops && clk->ops->set_rate)) { - unsigned long flags; - - spin_lock_irqsave(&clock_lock, flags); - ret = clk->ops->set_rate(clk, rate, algo_id); - spin_unlock_irqrestore(&clock_lock, flags); - } - - if (unlikely(clk->flags & CLK_RATE_PROPAGATES)) - propagate_rate(clk); - - for (i = 0; loongson2_clockmod_table[i].frequency != CPUFREQ_TABLE_END; - i++) { - if (loongson2_clockmod_table[i].frequency == - CPUFREQ_ENTRY_INVALID) - continue; - if (rate == loongson2_clockmod_table[i].frequency) - break; - } - if (rate != loongson2_clockmod_table[i].frequency) - return -ENOTSUPP; - - clk->rate = rate; - - regval = LOONGSON_CHIPCFG0; - regval = (regval & ~0x7) | (loongson2_clockmod_table[i].index - 1); - LOONGSON_CHIPCFG0 = regval; - - return ret; -} -EXPORT_SYMBOL_GPL(clk_set_rate_ex); - -long clk_round_rate(struct clk *clk, unsigned long rate) -{ - if (likely(clk->ops && clk->ops->round_rate)) { - unsigned long flags, rounded; - - spin_lock_irqsave(&clock_lock, flags); - rounded = clk->ops->round_rate(clk, rate); - spin_unlock_irqrestore(&clock_lock, flags); - - return rounded; - } - - return rate; -} -EXPORT_SYMBOL_GPL(clk_round_rate); - -/* - * This is the simple version of Loongson-2 wait, Maybe we need do this in - * interrupt disabled content - */ - -DEFINE_SPINLOCK(loongson2_wait_lock); -void loongson2_cpu_wait(void) -{ - u32 cpu_freq; - unsigned long flags; - - spin_lock_irqsave(&loongson2_wait_lock, flags); - cpu_freq = LOONGSON_CHIPCFG0; - LOONGSON_CHIPCFG0 &= ~0x7; /* Put CPU into wait mode */ - LOONGSON_CHIPCFG0 = cpu_freq; /* Restore CPU state */ - spin_unlock_irqrestore(&loongson2_wait_lock, flags); -} -EXPORT_SYMBOL_GPL(loongson2_cpu_wait); - -MODULE_AUTHOR("Yanhua "); -MODULE_DESCRIPTION("cpufreq driver for Loongson 2F"); -MODULE_LICENSE("GPL"); diff --git a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c b/arch/mips/kernel/cpufreq/loongson2_cpufreq.c index ae5db20..e7c98e2 100644 --- a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c +++ b/arch/mips/kernel/cpufreq/loongson2_cpufreq.c @@ -19,7 +19,7 @@ #include -#include +#include static uint nowait; @@ -181,6 +181,25 @@ static struct platform_driver platform_driver = { .id_table = platform_device_ids, }; +/* + * This is the simple version of Loongson-2 wait, Maybe we need do this in + * interrupt disabled context. + */ + +static DEFINE_SPINLOCK(loongson2_wait_lock); + +static void loongson2_cpu_wait(void) +{ + unsigned long flags; + u32 cpu_freq; + + spin_lock_irqsave(&loongson2_wait_lock, flags); + cpu_freq = LOONGSON_CHIPCFG0; + LOONGSON_CHIPCFG0 &= ~0x7; /* Put CPU into wait mode */ + LOONGSON_CHIPCFG0 = cpu_freq; /* Restore CPU state */ + spin_unlock_irqrestore(&loongson2_wait_lock, flags); +} + static int __init cpufreq_init(void) { int ret; diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c index d3bcc33..ce2f129 100644 --- a/arch/mips/lantiq/clk.c +++ b/arch/mips/lantiq/clk.c @@ -135,6 +135,11 @@ void clk_deactivate(struct clk *clk) } EXPORT_SYMBOL(clk_deactivate); +struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec) +{ + return NULL; +} + static inline u32 get_counter_resolution(void) { u32 res; diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c index d185e84..6cfd611 100644 --- a/arch/mips/lantiq/prom.c +++ b/arch/mips/lantiq/prom.c @@ -8,7 +8,10 @@ #include #include +#include #include +#include + #include #include @@ -70,6 +73,25 @@ void __init plat_mem_setup(void) __dt_setup_arch(&__dtb_start); } +void __init device_tree_init(void) +{ + unsigned long base, size; + + if (!initial_boot_params) + return; + + base = virt_to_phys((void *)initial_boot_params); + size = be32_to_cpu(initial_boot_params->totalsize); + + /* Before we do anything, lets reserve the dt blob */ + reserve_bootmem(base, size, BOOTMEM_DEFAULT); + + unflatten_device_tree(); + + /* free the space reserved for the dt blob */ + free_bootmem(base, size); +} + void __init prom_init(void) { /* call the soc specific detetcion code and get it to fill soc_info */ diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c index 83780f7..befbb76 100644 --- a/arch/mips/lantiq/xway/sysctrl.c +++ b/arch/mips/lantiq/xway/sysctrl.c @@ -20,10 +20,12 @@ /* clock control register */ #define CGU_IFCCR 0x0018 +#define CGU_IFCCR_VR9 0x0024 /* system clock register */ #define CGU_SYS 0x0010 /* pci control register */ #define CGU_PCICR 0x0034 +#define CGU_PCICR_VR9 0x0038 /* ephy configuration register */ #define CGU_EPHY 0x10 /* power control register */ @@ -80,6 +82,9 @@ static void __iomem *pmu_membase; void __iomem *ltq_cgu_membase; void __iomem *ltq_ebu_membase; +static u32 ifccr = CGU_IFCCR; +static u32 pcicr = CGU_PCICR; + /* legacy function kept alive to ease clkdev transition */ void ltq_pmu_enable(unsigned int module) { @@ -103,14 +108,14 @@ EXPORT_SYMBOL(ltq_pmu_disable); /* enable a hw clock */ static int cgu_enable(struct clk *clk) { - ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) | clk->bits, CGU_IFCCR); + ltq_cgu_w32(ltq_cgu_r32(ifccr) | clk->bits, ifccr); return 0; } /* disable a hw clock */ static void cgu_disable(struct clk *clk) { - ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) & ~clk->bits, CGU_IFCCR); + ltq_cgu_w32(ltq_cgu_r32(ifccr) & ~clk->bits, ifccr); } /* enable a clock gate */ @@ -138,22 +143,22 @@ static void pmu_disable(struct clk *clk) /* the pci enable helper */ static int pci_enable(struct clk *clk) { - unsigned int ifccr = ltq_cgu_r32(CGU_IFCCR); + unsigned int val = ltq_cgu_r32(ifccr); /* set bus clock speed */ if (of_machine_is_compatible("lantiq,ar9")) { - ifccr &= ~0x1f00000; + val &= ~0x1f00000; if (clk->rate == CLOCK_33M) - ifccr |= 0xe00000; + val |= 0xe00000; else - ifccr |= 0x700000; /* 62.5M */ + val |= 0x700000; /* 62.5M */ } else { - ifccr &= ~0xf00000; + val &= ~0xf00000; if (clk->rate == CLOCK_33M) - ifccr |= 0x800000; + val |= 0x800000; else - ifccr |= 0x400000; /* 62.5M */ + val |= 0x400000; /* 62.5M */ } - ltq_cgu_w32(ifccr, CGU_IFCCR); + ltq_cgu_w32(val, ifccr); pmu_enable(clk); return 0; } @@ -161,18 +166,16 @@ static int pci_enable(struct clk *clk) /* enable the external clock as a source */ static int pci_ext_enable(struct clk *clk) { - ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) & ~(1 << 16), - CGU_IFCCR); - ltq_cgu_w32((1 << 30), CGU_PCICR); + ltq_cgu_w32(ltq_cgu_r32(ifccr) & ~(1 << 16), ifccr); + ltq_cgu_w32((1 << 30), pcicr); return 0; } /* disable the external clock as a source */ static void pci_ext_disable(struct clk *clk) { - ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) | (1 << 16), - CGU_IFCCR); - ltq_cgu_w32((1 << 31) | (1 << 30), CGU_PCICR); + ltq_cgu_w32(ltq_cgu_r32(ifccr) | (1 << 16), ifccr); + ltq_cgu_w32((1 << 31) | (1 << 30), pcicr); } /* enable a clockout source */ @@ -184,11 +187,11 @@ static int clkout_enable(struct clk *clk) for (i = 0; i < 4; i++) { if (clk->rates[i] == clk->rate) { int shift = 14 - (2 * clk->module); - unsigned int ifccr = ltq_cgu_r32(CGU_IFCCR); + unsigned int val = ltq_cgu_r32(ifccr); - ifccr &= ~(3 << shift); - ifccr |= i << shift; - ltq_cgu_w32(ifccr, CGU_IFCCR); + val &= ~(3 << shift); + val |= i << shift; + ltq_cgu_w32(val, ifccr); return 0; } } @@ -336,8 +339,12 @@ void __init ltq_soc_init(void) clkdev_add_clkout(); /* add the soc dependent clocks */ - if (!of_machine_is_compatible("lantiq,vr9")) + if (of_machine_is_compatible("lantiq,vr9")) { + ifccr = CGU_IFCCR_VR9; + pcicr = CGU_PCICR_VR9; + } else { clkdev_add_pmu("1e180000.etop", NULL, 0, PMU_PPE); + } if (!of_machine_is_compatible("lantiq,ase")) { clkdev_add_pmu("1e100c00.serial", NULL, 0, PMU_ASC1); diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig index aca93ee..263beb9 100644 --- a/arch/mips/loongson/Kconfig +++ b/arch/mips/loongson/Kconfig @@ -41,6 +41,7 @@ config LEMOTE_MACH2F select CSRC_R4K if ! MIPS_EXTERNAL_TIMER select DMA_NONCOHERENT select GENERIC_ISA_DMA_SUPPORT_BROKEN + select HAVE_CLK select HW_HAS_PCI select I8259 select IRQ_CPU diff --git a/arch/mips/loongson/lemote-2f/Makefile b/arch/mips/loongson/lemote-2f/Makefile index 8699a53..4f9eaa3 100644 --- a/arch/mips/loongson/lemote-2f/Makefile +++ b/arch/mips/loongson/lemote-2f/Makefile @@ -2,7 +2,7 @@ # Makefile for lemote loongson2f family machines # -obj-y += machtype.o irq.o reset.o ec_kb3310b.o +obj-y += clock.o machtype.o irq.o reset.o ec_kb3310b.o # # Suspend Support diff --git a/arch/mips/loongson/lemote-2f/clock.c b/arch/mips/loongson/lemote-2f/clock.c new file mode 100644 index 0000000..bc739d4 --- /dev/null +++ b/arch/mips/loongson/lemote-2f/clock.c @@ -0,0 +1,145 @@ +/* + * Copyright (C) 2006 - 2008 Lemote Inc. & Insititute of Computing Technology + * Author: Yanhua, yanh@lemote.com + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +static LIST_HEAD(clock_list); +static DEFINE_SPINLOCK(clock_lock); +static DEFINE_MUTEX(clock_list_sem); + +/* Minimum CLK support */ +enum { + DC_ZERO, DC_25PT = 2, DC_37PT, DC_50PT, DC_62PT, DC_75PT, + DC_87PT, DC_DISABLE, DC_RESV +}; + +struct cpufreq_frequency_table loongson2_clockmod_table[] = { + {DC_RESV, CPUFREQ_ENTRY_INVALID}, + {DC_ZERO, CPUFREQ_ENTRY_INVALID}, + {DC_25PT, 0}, + {DC_37PT, 0}, + {DC_50PT, 0}, + {DC_62PT, 0}, + {DC_75PT, 0}, + {DC_87PT, 0}, + {DC_DISABLE, 0}, + {DC_RESV, CPUFREQ_TABLE_END}, +}; +EXPORT_SYMBOL_GPL(loongson2_clockmod_table); + +static struct clk cpu_clk = { + .name = "cpu_clk", + .flags = CLK_ALWAYS_ENABLED | CLK_RATE_PROPAGATES, + .rate = 800000000, +}; + +struct clk *clk_get(struct device *dev, const char *id) +{ + return &cpu_clk; +} +EXPORT_SYMBOL(clk_get); + +static void propagate_rate(struct clk *clk) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &clock_list, node) { + if (likely(clkp->parent != clk)) + continue; + if (likely(clkp->ops && clkp->ops->recalc)) + clkp->ops->recalc(clkp); + if (unlikely(clkp->flags & CLK_RATE_PROPAGATES)) + propagate_rate(clkp); + } +} + +int clk_enable(struct clk *clk) +{ + return 0; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_disable); + +unsigned long clk_get_rate(struct clk *clk) +{ + return (unsigned long)clk->rate; +} +EXPORT_SYMBOL(clk_get_rate); + +void clk_put(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_put); + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + int ret = 0; + int regval; + int i; + + if (likely(clk->ops && clk->ops->set_rate)) { + unsigned long flags; + + spin_lock_irqsave(&clock_lock, flags); + ret = clk->ops->set_rate(clk, rate, 0); + spin_unlock_irqrestore(&clock_lock, flags); + } + + if (unlikely(clk->flags & CLK_RATE_PROPAGATES)) + propagate_rate(clk); + + for (i = 0; loongson2_clockmod_table[i].frequency != CPUFREQ_TABLE_END; + i++) { + if (loongson2_clockmod_table[i].frequency == + CPUFREQ_ENTRY_INVALID) + continue; + if (rate == loongson2_clockmod_table[i].frequency) + break; + } + if (rate != loongson2_clockmod_table[i].frequency) + return -ENOTSUPP; + + clk->rate = rate; + + regval = LOONGSON_CHIPCFG0; + regval = (regval & ~0x7) | (loongson2_clockmod_table[i].index - 1); + LOONGSON_CHIPCFG0 = regval; + + return ret; +} +EXPORT_SYMBOL_GPL(clk_set_rate); + +long clk_round_rate(struct clk *clk, unsigned long rate) +{ + if (likely(clk->ops && clk->ops->round_rate)) { + unsigned long flags, rounded; + + spin_lock_irqsave(&clock_lock, flags); + rounded = clk->ops->round_rate(clk, rate); + spin_unlock_irqrestore(&clock_lock, flags); + + return rounded; + } + + return rate; +} +EXPORT_SYMBOL_GPL(clk_round_rate); diff --git a/arch/mips/loongson1/Kconfig b/arch/mips/loongson1/Kconfig index 237fa21..a9a14d6 100644 --- a/arch/mips/loongson1/Kconfig +++ b/arch/mips/loongson1/Kconfig @@ -15,6 +15,7 @@ config LOONGSON1_LS1B select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_HIGHMEM select SYS_HAS_EARLY_PRINTK + select HAVE_CLK endchoice diff --git a/arch/mips/loongson1/common/clock.c b/arch/mips/loongson1/common/clock.c index 2d98fb0..1bbbbec 100644 --- a/arch/mips/loongson1/common/clock.c +++ b/arch/mips/loongson1/common/clock.c @@ -38,12 +38,28 @@ struct clk *clk_get(struct device *dev, const char *name) } EXPORT_SYMBOL(clk_get); +int clk_enable(struct clk *clk) +{ + return 0; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_disable); + unsigned long clk_get_rate(struct clk *clk) { return clk->rate; } EXPORT_SYMBOL(clk_get_rate); +void clk_put(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_put); + static void pll_clk_init(struct clk *clk) { u32 pll; diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index b105eca..cd8fcab 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -401,6 +401,7 @@ static void __init node_mem_init(cnodeid_t node) * Allocate the node data structures on the node first. */ __node_data[node] = __va(slot_freepfn << PAGE_SHIFT); + memset(__node_data[node], 0, PAGE_SIZE); NODE_DATA(node)->bdata = &bootmem_node_data[node]; NODE_DATA(node)->node_start_pfn = start_pfn; diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig index 852ae4b..6d40bc7 100644 --- a/arch/mips/txx9/Kconfig +++ b/arch/mips/txx9/Kconfig @@ -20,6 +20,7 @@ config MACH_TXX9 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_BIG_ENDIAN + select HAVE_CLK config TOSHIBA_JMR3927 bool "Toshiba JMR-TX3927 board" diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 687f9b4..5cfb086 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -3,6 +3,7 @@ config MN10300 select HAVE_OPROFILE select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW + select ARCH_WANT_IPC_PARSE_VERSION select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_KGDB select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h index 9051f92..866eb14 100644 --- a/arch/mn10300/include/asm/unistd.h +++ b/arch/mn10300/include/asm/unistd.h @@ -358,7 +358,6 @@ /* * specify the deprecated syscalls we want to support on this arch */ -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT #define __ARCH_WANT_STAT64 diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 9a5d3cd..352f416 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -115,11 +115,13 @@ config PPC select HAVE_OPROFILE select HAVE_SYSCALL_WRAPPERS if PPC64 select GENERIC_ATOMIC64 if PPC32 + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select HAVE_IRQ_WORK select HAVE_PERF_EVENTS select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 select HAVE_GENERIC_HARDIRQS + select ARCH_WANT_IPC_PARSE_VERSION select SPARSE_IRQ select IRQ_PER_CPU select IRQ_DOMAIN diff --git a/arch/powerpc/boot/dts/p2020rdb-pc_32b.dts b/arch/powerpc/boot/dts/p2020rdb-pc_32b.dts index 852e5b2..57573bd 100644 --- a/arch/powerpc/boot/dts/p2020rdb-pc_32b.dts +++ b/arch/powerpc/boot/dts/p2020rdb-pc_32b.dts @@ -56,7 +56,7 @@ ranges = <0x0 0x0 0xffe00000 0x100000>; }; - pci0: pcie@ffe08000 { + pci2: pcie@ffe08000 { reg = <0 0xffe08000 0 0x1000>; status = "disabled"; }; @@ -76,7 +76,7 @@ }; }; - pci2: pcie@ffe0a000 { + pci0: pcie@ffe0a000 { reg = <0 0xffe0a000 0 0x1000>; ranges = <0x2000000 0x0 0xe0000000 0 0x80000000 0x0 0x20000000 0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>; diff --git a/arch/powerpc/boot/dts/p2020rdb-pc_36b.dts b/arch/powerpc/boot/dts/p2020rdb-pc_36b.dts index b5a56ca..470247e 100644 --- a/arch/powerpc/boot/dts/p2020rdb-pc_36b.dts +++ b/arch/powerpc/boot/dts/p2020rdb-pc_36b.dts @@ -56,7 +56,7 @@ ranges = <0x0 0xf 0xffe00000 0x100000>; }; - pci0: pcie@fffe08000 { + pci2: pcie@fffe08000 { reg = <0xf 0xffe08000 0 0x1000>; status = "disabled"; }; @@ -76,7 +76,7 @@ }; }; - pci2: pcie@fffe0a000 { + pci0: pcie@fffe0a000 { reg = <0xf 0xffe0a000 0 0x1000>; ranges = <0x2000000 0x0 0xe0000000 0xc 0x00000000 0x0 0x20000000 0x1000000 0x0 0x00000000 0xf 0xffc00000 0x0 0x10000>; diff --git a/arch/powerpc/boot/dts/p3041ds.dts b/arch/powerpc/boot/dts/p3041ds.dts index 22a215e..6cdcadc 100644 --- a/arch/powerpc/boot/dts/p3041ds.dts +++ b/arch/powerpc/boot/dts/p3041ds.dts @@ -58,7 +58,7 @@ #size-cells = <1>; compatible = "spansion,s25sl12801"; reg = <0>; - spi-max-frequency = <40000000>; /* input clock */ + spi-max-frequency = <35000000>; /* input clock */ partition@u-boot { label = "u-boot"; reg = <0x00000000 0x00100000>; diff --git a/arch/powerpc/configs/chroma_defconfig b/arch/powerpc/configs/chroma_defconfig index b1f9597..29bb11e 100644 --- a/arch/powerpc/configs/chroma_defconfig +++ b/arch/powerpc/configs/chroma_defconfig @@ -21,8 +21,8 @@ CONFIG_CGROUP_DEVICE=y CONFIG_CPUSETS=y CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y -CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y +CONFIG_CGROUP_MEMCG=y +CONFIG_CGROUP_MEMCG_SWAP=y CONFIG_NAMESPACES=y CONFIG_RELAY=y CONFIG_BLK_DEV_INITRD=y diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index d3d1b5e..bd377a3 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -389,7 +389,6 @@ #include #include -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_ALARM diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S index ab523f3..9ecf6e3 100644 --- a/arch/powerpc/kvm/book3s_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_rmhandlers.S @@ -67,7 +67,6 @@ kvmppc_skip_Hinterrupt: #elif defined(CONFIG_PPC_BOOK3S_32) #define FUNC(name) name -#define MTMSR_EERI(reg) mtmsr (reg) .macro INTERRUPT_TRAMPOLINE intno diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c index 89ee02c..3c732ac 100644 --- a/arch/powerpc/platforms/85xx/p1022_ds.c +++ b/arch/powerpc/platforms/85xx/p1022_ds.c @@ -208,6 +208,7 @@ static void p1022ds_set_monitor_port(enum fsl_diu_monitor_port port) u8 __iomem *lbc_lcs0_ba = NULL; u8 __iomem *lbc_lcs1_ba = NULL; phys_addr_t cs0_addr, cs1_addr; + u32 br0, or0, br1, or1; const __be32 *iprop; unsigned int num_laws; u8 b; @@ -256,11 +257,70 @@ static void p1022ds_set_monitor_port(enum fsl_diu_monitor_port port) } num_laws = be32_to_cpup(iprop); - cs0_addr = lbc_br_to_phys(ecm, num_laws, in_be32(&lbc->bank[0].br)); - cs1_addr = lbc_br_to_phys(ecm, num_laws, in_be32(&lbc->bank[1].br)); + /* + * Indirect mode requires both BR0 and BR1 to be set to "GPCM", + * otherwise writes to these addresses won't actually appear on the + * local bus, and so the PIXIS won't see them. + * + * In FCM mode, writes go to the NAND controller, which does not pass + * them to the localbus directly. So we force BR0 and BR1 into GPCM + * mode, since we don't care about what's behind the localbus any + * more. + */ + br0 = in_be32(&lbc->bank[0].br); + br1 = in_be32(&lbc->bank[1].br); + or0 = in_be32(&lbc->bank[0].or); + or1 = in_be32(&lbc->bank[1].or); + + /* Make sure CS0 and CS1 are programmed */ + if (!(br0 & BR_V) || !(br1 & BR_V)) { + pr_err("p1022ds: CS0 and/or CS1 is not programmed\n"); + goto exit; + } + + /* + * Use the existing BRx/ORx values if it's already GPCM. Otherwise, + * force the values to simple 32KB GPCM windows with the most + * conservative timing. + */ + if ((br0 & BR_MSEL) != BR_MS_GPCM) { + br0 = (br0 & BR_BA) | BR_V; + or0 = 0xFFFF8000 | 0xFF7; + out_be32(&lbc->bank[0].br, br0); + out_be32(&lbc->bank[0].or, or0); + } + if ((br1 & BR_MSEL) != BR_MS_GPCM) { + br1 = (br1 & BR_BA) | BR_V; + or1 = 0xFFFF8000 | 0xFF7; + out_be32(&lbc->bank[1].br, br1); + out_be32(&lbc->bank[1].or, or1); + } + + cs0_addr = lbc_br_to_phys(ecm, num_laws, br0); + if (!cs0_addr) { + pr_err("p1022ds: could not determine physical address for CS0" + " (BR0=%08x)\n", br0); + goto exit; + } + cs1_addr = lbc_br_to_phys(ecm, num_laws, br1); + if (!cs0_addr) { + pr_err("p1022ds: could not determine physical address for CS1" + " (BR1=%08x)\n", br1); + goto exit; + } lbc_lcs0_ba = ioremap(cs0_addr, 1); + if (!lbc_lcs0_ba) { + pr_err("p1022ds: could not ioremap CS0 address %llx\n", + (unsigned long long)cs0_addr); + goto exit; + } lbc_lcs1_ba = ioremap(cs1_addr, 1); + if (!lbc_lcs1_ba) { + pr_err("p1022ds: could not ioremap CS1 address %llx\n", + (unsigned long long)cs1_addr); + goto exit; + } /* Make sure we're in indirect mode first. */ if ((in_be32(&guts->pmuxcr) & PMUXCR_ELBCDIU_MASK) != @@ -419,18 +479,6 @@ void __init p1022_ds_pic_init(void) #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) -/* - * Disables a node in the device tree. - * - * This function is called before kmalloc() is available, so the 'new' object - * should be allocated in the global area. The easiest way is to do that is - * to allocate one static local variable for each call to this function. - */ -static void __init disable_one_node(struct device_node *np, struct property *new) -{ - prom_update_property(np, new); -} - /* TRUE if there is a "video=fslfb" command-line parameter. */ static bool fslfb; @@ -493,28 +541,58 @@ static void __init p1022_ds_setup_arch(void) diu_ops.valid_monitor_port = p1022ds_valid_monitor_port; /* - * Disable the NOR flash node if there is video=fslfb... command-line - * parameter. When the DIU is active, NOR flash is unavailable, so we - * have to disable the node before the MTD driver loads. + * Disable the NOR and NAND flash nodes if there is video=fslfb... + * command-line parameter. When the DIU is active, the localbus is + * unavailable, so we have to disable these nodes before the MTD + * driver loads. */ if (fslfb) { struct device_node *np = of_find_compatible_node(NULL, NULL, "fsl,p1022-elbc"); if (np) { - np = of_find_compatible_node(np, NULL, "cfi-flash"); - if (np) { + struct device_node *np2; + + of_node_get(np); + np2 = of_find_compatible_node(np, NULL, "cfi-flash"); + if (np2) { static struct property nor_status = { .name = "status", .value = "disabled", .length = sizeof("disabled"), }; + /* + * prom_update_property() is called before + * kmalloc() is available, so the 'new' object + * should be allocated in the global area. + * The easiest way is to do that is to + * allocate one static local variable for each + * call to this function. + */ pr_info("p1022ds: disabling %s node", - np->full_name); - disable_one_node(np, &nor_status); - of_node_put(np); + np2->full_name); + prom_update_property(np2, &nor_status); + of_node_put(np2); } + + of_node_get(np); + np2 = of_find_compatible_node(np, NULL, + "fsl,elbc-fcm-nand"); + if (np2) { + static struct property nand_status = { + .name = "status", + .value = "disabled", + .length = sizeof("disabled"), + }; + + pr_info("p1022ds: disabling %s node", + np2->full_name); + prom_update_property(np2, &nand_status); + of_node_put(np2); + } + + of_node_put(np); } } diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index d544d78..dba1ce2 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -186,10 +186,13 @@ static void spufs_prune_dir(struct dentry *dir) static int spufs_rmdir(struct inode *parent, struct dentry *dir) { /* remove all entries */ + int res; spufs_prune_dir(dir); d_drop(dir); - - return simple_rmdir(parent, dir); + res = simple_rmdir(parent, dir); + /* We have to give up the mm_struct */ + spu_forget(SPUFS_I(dir->d_inode)->i_ctx); + return res; } static int spufs_fill_dir(struct dentry *dir, @@ -245,9 +248,6 @@ static int spufs_dir_close(struct inode *inode, struct file *file) mutex_unlock(&parent->i_mutex); WARN_ON(ret); - /* We have to give up the mm_struct */ - spu_forget(ctx); - return dcache_dir_close(inode, file); } @@ -450,28 +450,24 @@ spufs_create_context(struct inode *inode, struct dentry *dentry, struct spu_context *neighbor; struct path path = {.mnt = mnt, .dentry = dentry}; - ret = -EPERM; if ((flags & SPU_CREATE_NOSCHED) && !capable(CAP_SYS_NICE)) - goto out_unlock; + return -EPERM; - ret = -EINVAL; if ((flags & (SPU_CREATE_NOSCHED | SPU_CREATE_ISOLATE)) == SPU_CREATE_ISOLATE) - goto out_unlock; + return -EINVAL; - ret = -ENODEV; if ((flags & SPU_CREATE_ISOLATE) && !isolated_loader) - goto out_unlock; + return -ENODEV; gang = NULL; neighbor = NULL; affinity = flags & (SPU_CREATE_AFFINITY_MEM | SPU_CREATE_AFFINITY_SPU); if (affinity) { gang = SPUFS_I(inode)->i_gang; - ret = -EINVAL; if (!gang) - goto out_unlock; + return -EINVAL; mutex_lock(&gang->aff_mutex); neighbor = spufs_assert_affinity(flags, gang, aff_filp); if (IS_ERR(neighbor)) { @@ -492,22 +488,12 @@ spufs_create_context(struct inode *inode, struct dentry *dentry, } ret = spufs_context_open(&path); - if (ret < 0) { + if (ret < 0) WARN_ON(spufs_rmdir(inode, dentry)); - if (affinity) - mutex_unlock(&gang->aff_mutex); - mutex_unlock(&inode->i_mutex); - spu_forget(SPUFS_I(dentry->d_inode)->i_ctx); - goto out; - } out_aff_unlock: if (affinity) mutex_unlock(&gang->aff_mutex); -out_unlock: - mutex_unlock(&inode->i_mutex); -out: - dput(dentry); return ret; } @@ -580,18 +566,13 @@ static int spufs_create_gang(struct inode *inode, int ret; ret = spufs_mkgang(inode, dentry, mode & S_IRWXUGO); - if (ret) - goto out; - - ret = spufs_gang_open(&path); - if (ret < 0) { - int err = simple_rmdir(inode, dentry); - WARN_ON(err); + if (!ret) { + ret = spufs_gang_open(&path); + if (ret < 0) { + int err = simple_rmdir(inode, dentry); + WARN_ON(err); + } } - -out: - mutex_unlock(&inode->i_mutex); - dput(dentry); return ret; } @@ -601,40 +582,32 @@ static struct file_system_type spufs_type; long spufs_create(struct path *path, struct dentry *dentry, unsigned int flags, umode_t mode, struct file *filp) { + struct inode *dir = path->dentry->d_inode; int ret; - ret = -EINVAL; /* check if we are on spufs */ if (path->dentry->d_sb->s_type != &spufs_type) - goto out; + return -EINVAL; /* don't accept undefined flags */ if (flags & (~SPU_CREATE_FLAG_ALL)) - goto out; + return -EINVAL; /* only threads can be underneath a gang */ - if (path->dentry != path->dentry->d_sb->s_root) { - if ((flags & SPU_CREATE_GANG) || - !SPUFS_I(path->dentry->d_inode)->i_gang) - goto out; - } + if (path->dentry != path->dentry->d_sb->s_root) + if ((flags & SPU_CREATE_GANG) || !SPUFS_I(dir)->i_gang) + return -EINVAL; mode &= ~current_umask(); if (flags & SPU_CREATE_GANG) - ret = spufs_create_gang(path->dentry->d_inode, - dentry, path->mnt, mode); + ret = spufs_create_gang(dir, dentry, path->mnt, mode); else - ret = spufs_create_context(path->dentry->d_inode, - dentry, path->mnt, flags, mode, + ret = spufs_create_context(dir, dentry, path->mnt, flags, mode, filp); if (ret >= 0) - fsnotify_mkdir(path->dentry->d_inode, dentry); - return ret; + fsnotify_mkdir(dir, dentry); -out: - mutex_unlock(&path->dentry->d_inode->i_mutex); - dput(dentry); return ret; } diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c index 5665dcc..5b7d8ff 100644 --- a/arch/powerpc/platforms/cell/spufs/syscalls.c +++ b/arch/powerpc/platforms/cell/spufs/syscalls.c @@ -70,7 +70,7 @@ static long do_spu_create(const char __user *pathname, unsigned int flags, ret = PTR_ERR(dentry); if (!IS_ERR(dentry)) { ret = spufs_create(&path, dentry, flags, mode, neighbor); - path_put(&path); + done_path_create(&path, dentry); } return ret; diff --git a/arch/powerpc/sysdev/fsl_85xx_cache_ctlr.h b/arch/powerpc/sysdev/fsl_85xx_cache_ctlr.h index 60c9c0b..2aa97ddb 100644 --- a/arch/powerpc/sysdev/fsl_85xx_cache_ctlr.h +++ b/arch/powerpc/sysdev/fsl_85xx_cache_ctlr.h @@ -1,5 +1,5 @@ /* - * Copyright 2009-2010 Freescale Semiconductor, Inc + * Copyright 2009-2010, 2012 Freescale Semiconductor, Inc * * QorIQ based Cache Controller Memory Mapped Registers * @@ -91,7 +91,7 @@ struct mpc85xx_l2ctlr { struct sram_parameters { unsigned int sram_size; - uint64_t sram_offset; + phys_addr_t sram_offset; }; extern int instantiate_cache_sram(struct platform_device *dev, diff --git a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c index cedabd0..68ac3aa 100644 --- a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c +++ b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c @@ -1,5 +1,5 @@ /* - * Copyright 2009-2010 Freescale Semiconductor, Inc. + * Copyright 2009-2010, 2012 Freescale Semiconductor, Inc. * * QorIQ (P1/P2) L2 controller init for Cache-SRAM instantiation * @@ -31,24 +31,21 @@ static char *sram_size; static char *sram_offset; struct mpc85xx_l2ctlr __iomem *l2ctlr; -static long get_cache_sram_size(void) +static int get_cache_sram_params(struct sram_parameters *sram_params) { - unsigned long val; + unsigned long long addr; + unsigned int size; - if (!sram_size || (strict_strtoul(sram_size, 0, &val) < 0)) + if (!sram_size || (kstrtouint(sram_size, 0, &size) < 0)) return -EINVAL; - return val; -} - -static long get_cache_sram_offset(void) -{ - unsigned long val; - - if (!sram_offset || (strict_strtoul(sram_offset, 0, &val) < 0)) + if (!sram_offset || (kstrtoull(sram_offset, 0, &addr) < 0)) return -EINVAL; - return val; + sram_params->sram_offset = addr; + sram_params->sram_size = size; + + return 0; } static int __init get_size_from_cmdline(char *str) @@ -93,17 +90,9 @@ static int __devinit mpc85xx_l2ctlr_of_probe(struct platform_device *dev) } l2cache_size = *prop; - sram_params.sram_size = get_cache_sram_size(); - if ((int)sram_params.sram_size <= 0) { - dev_err(&dev->dev, - "Entire L2 as cache, Aborting Cache-SRAM stuff\n"); - return -EINVAL; - } - - sram_params.sram_offset = get_cache_sram_offset(); - if ((int64_t)sram_params.sram_offset <= 0) { + if (get_cache_sram_params(&sram_params)) { dev_err(&dev->dev, - "Entire L2 as cache, provide a valid sram offset\n"); + "Entire L2 as cache, provide valid sram offset and size\n"); return -EINVAL; } @@ -125,14 +114,14 @@ static int __devinit mpc85xx_l2ctlr_of_probe(struct platform_device *dev) * Write bits[0-17] to srbar0 */ out_be32(&l2ctlr->srbar0, - sram_params.sram_offset & L2SRAM_BAR_MSK_LO18); + lower_32_bits(sram_params.sram_offset) & L2SRAM_BAR_MSK_LO18); /* * Write bits[18-21] to srbare0 */ #ifdef CONFIG_PHYS_64BIT out_be32(&l2ctlr->srbarea0, - (sram_params.sram_offset >> 32) & L2SRAM_BARE_MSK_HI4); + upper_32_bits(sram_params.sram_offset) & L2SRAM_BARE_MSK_HI4); #endif clrsetbits_be32(&l2ctlr->ctl, L2CR_L2E, L2CR_L2FI); diff --git a/arch/powerpc/sysdev/xics/icp-hv.c b/arch/powerpc/sysdev/xics/icp-hv.c index 253dce9..14469cf 100644 --- a/arch/powerpc/sysdev/xics/icp-hv.c +++ b/arch/powerpc/sysdev/xics/icp-hv.c @@ -111,7 +111,7 @@ static unsigned int icp_hv_get_irq(void) if (vec == XICS_IRQ_SPURIOUS) return NO_IRQ; - irq = irq_radix_revmap_lookup(xics_host, vec); + irq = irq_find_mapping(xics_host, vec); if (likely(irq != NO_IRQ)) { xics_push_cppr(vec); return irq; diff --git a/arch/powerpc/sysdev/xics/icp-native.c b/arch/powerpc/sysdev/xics/icp-native.c index 4c79b6f..48861d3 100644 --- a/arch/powerpc/sysdev/xics/icp-native.c +++ b/arch/powerpc/sysdev/xics/icp-native.c @@ -119,7 +119,7 @@ static unsigned int icp_native_get_irq(void) if (vec == XICS_IRQ_SPURIOUS) return NO_IRQ; - irq = irq_radix_revmap_lookup(xics_host, vec); + irq = irq_find_mapping(xics_host, vec); if (likely(irq != NO_IRQ)) { xics_push_cppr(vec); return irq; diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c index cd1d18d..9049d9f 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -329,9 +329,6 @@ static int xics_host_map(struct irq_domain *h, unsigned int virq, pr_devel("xics: map virq %d, hwirq 0x%lx\n", virq, hw); - /* Insert the interrupt mapping into the radix tree for fast lookup */ - irq_radix_revmap_insert(xics_host, virq, hw); - /* They aren't all level sensitive but we just don't really know */ irq_set_status_flags(virq, IRQ_LEVEL); diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index a39b469..76de6b6 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -85,10 +85,12 @@ config S390 select HAVE_ARCH_MUTEX_CPU_RELAX select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 select ARCH_SAVE_PAGE_KEYS if HIBERNATION + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP select HAVE_CMPXCHG_LOCAL select ARCH_DISCARD_MEMBLOCK + select BUILDTIME_EXTABLE_SORT select ARCH_INLINE_SPIN_TRYLOCK select ARCH_INLINE_SPIN_TRYLOCK_BH select ARCH_INLINE_SPIN_LOCK @@ -117,6 +119,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_BH select ARCH_INLINE_WRITE_UNLOCK_IRQ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE + select ARCH_WANT_IPC_PARSE_VERSION select GENERIC_SMP_IDLE_THREAD select GENERIC_TIME_VSYSCALL select GENERIC_CLOCKEVENTS diff --git a/arch/s390/defconfig b/arch/s390/defconfig index 37d2bf2..f39cd71 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -7,13 +7,16 @@ CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y CONFIG_AUDIT=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y +CONFIG_RCU_FAST_NO_HZ=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_CGROUPS=y CONFIG_CPUSETS=y CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y +CONFIG_CGROUP_MEMCG=y CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y CONFIG_CGROUP_SCHED=y CONFIG_RT_GROUP_SCHED=y @@ -35,8 +38,6 @@ CONFIG_MODVERSIONS=y CONFIG_PARTITION_ADVANCED=y CONFIG_IBM_PARTITION=y CONFIG_DEFAULT_DEADLINE=y -CONFIG_NO_HZ=y -CONFIG_HIGH_RES_TIMERS=y CONFIG_PREEMPT=y CONFIG_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTREMOVE=y diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 5c63615..b749c57 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -11,7 +11,6 @@ #include #include #include -#include static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) @@ -58,7 +57,7 @@ static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk) pgd_t *pgd = mm->pgd; S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd); - if (user_mode != HOME_SPACE_MODE) { + if (addressing_mode != HOME_SPACE_MODE) { /* Load primary space page table origin. */ asm volatile(LCTL_OPCODE" 1,1,%0\n" : : "m" (S390_lowcore.user_asce) ); @@ -91,4 +90,17 @@ static inline void activate_mm(struct mm_struct *prev, switch_mm(prev, next, current); } +static inline void arch_dup_mmap(struct mm_struct *oldmm, + struct mm_struct *mm) +{ +#ifdef CONFIG_64BIT + if (oldmm->context.asce_limit < mm->context.asce_limit) + crst_table_downgrade(mm, oldmm->context.asce_limit); +#endif +} + +static inline void arch_exit_mmap(struct mm_struct *mm) +{ +} + #endif /* __S390_MMU_CONTEXT_H */ diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index c40fa91..11e4e32 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -120,7 +120,9 @@ struct stack_frame { regs->psw.mask = psw_user_bits | PSW_MASK_BA; \ regs->psw.addr = new_psw | PSW_ADDR_AMODE; \ regs->gprs[15] = new_stackp; \ + __tlb_flush_mm(current->mm); \ crst_table_downgrade(current->mm, 1UL << 31); \ + update_mm(current->mm, current); \ } while (0) /* Forward declaration, a strange C thing */ diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 57e8053..e6859d1 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -60,7 +60,7 @@ void create_mem_hole(struct mem_chunk memory_chunk[], unsigned long addr, #define SECONDARY_SPACE_MODE 2 #define HOME_SPACE_MODE 3 -extern unsigned int user_mode; +extern unsigned int addressing_mode; /* * Machine features detected in head.S diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 2e37157..6756e78 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -388,7 +388,6 @@ #define __IGNORE_recvmmsg #define __IGNORE_sendmmsg -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_SYS_ALARM #define __ARCH_WANT_SYS_GETHOSTNAME diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c index 21be961..ba500d8 100644 --- a/arch/s390/kernel/debug.c +++ b/arch/s390/kernel/debug.c @@ -110,6 +110,7 @@ struct debug_view debug_raw_view = { NULL, NULL }; +EXPORT_SYMBOL(debug_raw_view); struct debug_view debug_hex_ascii_view = { "hex_ascii", @@ -119,6 +120,7 @@ struct debug_view debug_hex_ascii_view = { NULL, NULL }; +EXPORT_SYMBOL(debug_hex_ascii_view); static struct debug_view debug_level_view = { "level", @@ -155,6 +157,7 @@ struct debug_view debug_sprintf_view = { NULL, NULL }; +EXPORT_SYMBOL(debug_sprintf_view); /* used by dump analysis tools to determine version of debug feature */ static unsigned int __used debug_feature_version = __DEBUG_FEATURE_VERSION; @@ -730,6 +733,7 @@ debug_info_t *debug_register(const char *name, int pages_per_area, return debug_register_mode(name, pages_per_area, nr_areas, buf_size, S_IRUSR | S_IWUSR, 0, 0); } +EXPORT_SYMBOL(debug_register); /* * debug_unregister: @@ -748,6 +752,7 @@ debug_unregister(debug_info_t * id) out: return; } +EXPORT_SYMBOL(debug_unregister); /* * debug_set_size: @@ -810,7 +815,7 @@ debug_set_level(debug_info_t* id, int new_level) } spin_unlock_irqrestore(&id->lock,flags); } - +EXPORT_SYMBOL(debug_set_level); /* * proceed_active_entry: @@ -930,7 +935,7 @@ debug_stop_all(void) if (debug_stoppable) debug_active = 0; } - +EXPORT_SYMBOL(debug_stop_all); void debug_set_critical(void) { @@ -963,6 +968,7 @@ debug_event_common(debug_info_t * id, int level, const void *buf, int len) return active; } +EXPORT_SYMBOL(debug_event_common); /* * debug_exception_common: @@ -990,6 +996,7 @@ debug_entry_t return active; } +EXPORT_SYMBOL(debug_exception_common); /* * counts arguments in format string for sprintf view @@ -1043,6 +1050,7 @@ debug_sprintf_event(debug_info_t* id, int level,char *string,...) return active; } +EXPORT_SYMBOL(debug_sprintf_event); /* * debug_sprintf_exception: @@ -1081,25 +1089,7 @@ debug_sprintf_exception(debug_info_t* id, int level,char *string,...) return active; } - -/* - * debug_init: - * - is called exactly once to initialize the debug feature - */ - -static int -__init debug_init(void) -{ - int rc = 0; - - s390dbf_sysctl_header = register_sysctl_table(s390dbf_dir_table); - mutex_lock(&debug_mutex); - debug_debugfs_root_entry = debugfs_create_dir(DEBUG_DIR_ROOT,NULL); - initialized = 1; - mutex_unlock(&debug_mutex); - - return rc; -} +EXPORT_SYMBOL(debug_sprintf_exception); /* * debug_register_view: @@ -1147,6 +1137,7 @@ debug_register_view(debug_info_t * id, struct debug_view *view) out: return rc; } +EXPORT_SYMBOL(debug_register_view); /* * debug_unregister_view: @@ -1176,6 +1167,7 @@ debug_unregister_view(debug_info_t * id, struct debug_view *view) out: return rc; } +EXPORT_SYMBOL(debug_unregister_view); static inline char * debug_get_user_string(const char __user *user_buf, size_t user_len) @@ -1485,6 +1477,7 @@ debug_dflt_header_fn(debug_info_t * id, struct debug_view *view, except_str, entry->id.fields.cpuid, (void *) caller); return rc; } +EXPORT_SYMBOL(debug_dflt_header_fn); /* * prints debug data sprintf-formated: @@ -1533,33 +1526,16 @@ out: } /* - * clean up module + * debug_init: + * - is called exactly once to initialize the debug feature */ -static void __exit debug_exit(void) +static int __init debug_init(void) { - debugfs_remove(debug_debugfs_root_entry); - unregister_sysctl_table(s390dbf_sysctl_header); - return; + s390dbf_sysctl_header = register_sysctl_table(s390dbf_dir_table); + mutex_lock(&debug_mutex); + debug_debugfs_root_entry = debugfs_create_dir(DEBUG_DIR_ROOT, NULL); + initialized = 1; + mutex_unlock(&debug_mutex); + return 0; } - -/* - * module definitions - */ postcore_initcall(debug_init); -module_exit(debug_exit); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(debug_register); -EXPORT_SYMBOL(debug_unregister); -EXPORT_SYMBOL(debug_set_level); -EXPORT_SYMBOL(debug_stop_all); -EXPORT_SYMBOL(debug_register_view); -EXPORT_SYMBOL(debug_unregister_view); -EXPORT_SYMBOL(debug_event_common); -EXPORT_SYMBOL(debug_exception_common); -EXPORT_SYMBOL(debug_hex_ascii_view); -EXPORT_SYMBOL(debug_raw_view); -EXPORT_SYMBOL(debug_dflt_header_fn); -EXPORT_SYMBOL(debug_sprintf_view); -EXPORT_SYMBOL(debug_sprintf_exception); -EXPORT_SYMBOL(debug_sprintf_event); diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c index 1f6b428..619c5d3 100644 --- a/arch/s390/kernel/dis.c +++ b/arch/s390/kernel/dis.c @@ -1531,7 +1531,7 @@ static int print_insn(char *buffer, unsigned char *code, unsigned long addr) void show_code(struct pt_regs *regs) { - char *mode = (regs->psw.mask & PSW_MASK_PSTATE) ? "User" : "Krnl"; + char *mode = user_mode(regs) ? "User" : "Krnl"; unsigned char code[64]; char buffer[64], *ptr; mm_segment_t old_fs; @@ -1540,7 +1540,7 @@ void show_code(struct pt_regs *regs) /* Get a snapshot of the 64 bytes surrounding the fault address. */ old_fs = get_fs(); - set_fs((regs->psw.mask & PSW_MASK_PSTATE) ? USER_DS : KERNEL_DS); + set_fs(user_mode(regs) ? USER_DS : KERNEL_DS); for (start = 32; start && regs->psw.addr >= 34 - start; start -= 2) { addr = regs->psw.addr - 34 + start; if (__copy_from_user(code + start - 2, diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index bc95a8e..83c3271 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -455,7 +455,6 @@ void __init startup_init(void) init_kernel_storage_key(); lockdep_init(); lockdep_off(); - sort_main_extable(); setup_lowcore_early(); setup_facility_list(); detect_machine_type(); diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index e64d141..6ffcd32 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -1583,7 +1583,7 @@ static struct kset *vmcmd_kset; static void vmcmd_run(struct shutdown_trigger *trigger) { - char *cmd, *next_cmd; + char *cmd; if (strcmp(trigger->name, ON_REIPL_STR) == 0) cmd = vmcmd_on_reboot; @@ -1600,15 +1600,7 @@ static void vmcmd_run(struct shutdown_trigger *trigger) if (strlen(cmd) == 0) return; - do { - next_cmd = strchr(cmd, '\n'); - if (next_cmd) { - next_cmd[0] = 0; - next_cmd += 1; - } - __cpcmd(cmd, NULL, 0, NULL); - cmd = next_cmd; - } while (cmd != NULL); + __cpcmd(cmd, NULL, 0, NULL); } static int vmcmd_init(void) diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 743c0f3..f86c81e 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -302,8 +302,8 @@ static int __init parse_vmalloc(char *arg) } early_param("vmalloc", parse_vmalloc); -unsigned int user_mode = HOME_SPACE_MODE; -EXPORT_SYMBOL_GPL(user_mode); +unsigned int addressing_mode = HOME_SPACE_MODE; +EXPORT_SYMBOL_GPL(addressing_mode); static int set_amode_primary(void) { @@ -328,7 +328,7 @@ static int set_amode_primary(void) */ static int __init early_parse_switch_amode(char *p) { - user_mode = PRIMARY_SPACE_MODE; + addressing_mode = PRIMARY_SPACE_MODE; return 0; } early_param("switch_amode", early_parse_switch_amode); @@ -336,9 +336,9 @@ early_param("switch_amode", early_parse_switch_amode); static int __init early_parse_user_mode(char *p) { if (p && strcmp(p, "primary") == 0) - user_mode = PRIMARY_SPACE_MODE; + addressing_mode = PRIMARY_SPACE_MODE; else if (!p || strcmp(p, "home") == 0) - user_mode = HOME_SPACE_MODE; + addressing_mode = HOME_SPACE_MODE; else return 1; return 0; @@ -347,7 +347,7 @@ early_param("user_mode", early_parse_user_mode); static void setup_addressing_mode(void) { - if (user_mode == PRIMARY_SPACE_MODE) { + if (addressing_mode == PRIMARY_SPACE_MODE) { if (set_amode_primary()) pr_info("Address spaces switched, " "mvcos available\n"); diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index af2421a..01775c0 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -185,7 +185,7 @@ void show_registers(struct pt_regs *regs) { char *mode; - mode = (regs->psw.mask & PSW_MASK_PSTATE) ? "User" : "Krnl"; + mode = user_mode(regs) ? "User" : "Krnl"; printk("%s PSW : %p %p", mode, (void *) regs->psw.mask, (void *) regs->psw.addr); @@ -225,7 +225,7 @@ void show_regs(struct pt_regs *regs) (void *) current->thread.ksp); show_registers(regs); /* Show stack backtrace if pt_regs is from kernel mode */ - if (!(regs->psw.mask & PSW_MASK_PSTATE)) + if (!user_mode(regs)) show_trace(NULL, (unsigned long *) regs->gprs[15]); show_last_breaking_event(regs); } @@ -300,7 +300,7 @@ static void __kprobes do_trap(struct pt_regs *regs, regs->int_code, si_signo) == NOTIFY_STOP) return; - if (regs->psw.mask & PSW_MASK_PSTATE) { + if (user_mode(regs)) { info.si_signo = si_signo; info.si_errno = 0; info.si_code = si_code; @@ -341,7 +341,7 @@ void __kprobes do_per_trap(struct pt_regs *regs) static void default_trap_handler(struct pt_regs *regs) { - if (regs->psw.mask & PSW_MASK_PSTATE) { + if (user_mode(regs)) { report_user_fault(regs, SIGSEGV); do_exit(SIGSEGV); } else @@ -410,7 +410,7 @@ static void __kprobes illegal_op(struct pt_regs *regs) location = get_psw_address(regs); - if (regs->psw.mask & PSW_MASK_PSTATE) { + if (user_mode(regs)) { if (get_user(*((__u16 *) opcode), (__u16 __user *) location)) return; if (*((__u16 *) opcode) == S390_BREAKPOINT_U16) { @@ -478,7 +478,7 @@ void specification_exception(struct pt_regs *regs) location = (__u16 __user *) get_psw_address(regs); - if (regs->psw.mask & PSW_MASK_PSTATE) { + if (user_mode(regs)) { get_user(*((__u16 *) opcode), location); switch (opcode[0]) { case 0x28: /* LDR Rx,Ry */ @@ -531,7 +531,7 @@ static void data_exception(struct pt_regs *regs) asm volatile("stfpc %0" : "=m" (current->thread.fp_regs.fpc)); #ifdef CONFIG_MATHEMU - else if (regs->psw.mask & PSW_MASK_PSTATE) { + else if (user_mode(regs)) { __u8 opcode[6]; get_user(*((__u16 *) opcode), location); switch (opcode[0]) { @@ -598,7 +598,7 @@ static void data_exception(struct pt_regs *regs) static void space_switch_exception(struct pt_regs *regs) { /* Set user psw back to home space mode. */ - if (regs->psw.mask & PSW_MASK_PSTATE) + if (user_mode(regs)) regs->psw.mask |= PSW_ASC_HOME; /* Send SIGILL. */ do_trap(regs, SIGILL, ILL_PRVOPC, "space switch event"); diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index ea5590f..9a19ca3 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -84,7 +84,8 @@ struct vdso_data *vdso_data = &vdso_data_store.data; */ static void vdso_init_data(struct vdso_data *vd) { - vd->ectg_available = user_mode != HOME_SPACE_MODE && test_facility(31); + vd->ectg_available = + addressing_mode != HOME_SPACE_MODE && test_facility(31); } #ifdef CONFIG_64BIT @@ -101,7 +102,7 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore) lowcore->vdso_per_cpu_data = __LC_PASTE; - if (user_mode == HOME_SPACE_MODE || !vdso_enabled) + if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled) return 0; segment_table = __get_free_pages(GFP_KERNEL, SEGMENT_ORDER); @@ -146,7 +147,7 @@ void vdso_free_per_cpu(struct _lowcore *lowcore) unsigned long segment_table, page_table, page_frame; u32 *psal, *aste; - if (user_mode == HOME_SPACE_MODE || !vdso_enabled) + if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled) return; psal = (u32 *)(addr_t) lowcore->paste[4]; @@ -164,7 +165,7 @@ static void vdso_init_cr5(void) { unsigned long cr5; - if (user_mode == HOME_SPACE_MODE || !vdso_enabled) + if (addressing_mode == HOME_SPACE_MODE || !vdso_enabled) return; cr5 = offsetof(struct _lowcore, paste); __ctl_load(cr5, 5, 5); diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 21109c6..de8fa9b 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -45,7 +45,7 @@ SECTIONS .dummy : { *(.dummy) } :data - RODATA + RO_DATA_SECTION(PAGE_SIZE) #ifdef CONFIG_SHARED_KERNEL . = ALIGN(0x100000); /* VM shared segments are 1MB aligned */ diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 6a12d1b..6c013f5 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -49,6 +49,7 @@ #define VM_FAULT_BADCONTEXT 0x010000 #define VM_FAULT_BADMAP 0x020000 #define VM_FAULT_BADACCESS 0x040000 +#define VM_FAULT_SIGNAL 0x080000 static unsigned long store_indication; @@ -110,7 +111,7 @@ static inline int user_space_fault(unsigned long trans_exc_code) if (trans_exc_code == 2) /* Access via secondary space, set_fs setting decides */ return current->thread.mm_segment.ar4; - if (user_mode == HOME_SPACE_MODE) + if (addressing_mode == HOME_SPACE_MODE) /* User space if the access has been done via home space. */ return trans_exc_code == 3; /* @@ -219,7 +220,7 @@ static noinline void do_fault_error(struct pt_regs *regs, int fault) case VM_FAULT_BADACCESS: case VM_FAULT_BADMAP: /* Bad memory access. Check if it is kernel or user space. */ - if (regs->psw.mask & PSW_MASK_PSTATE) { + if (user_mode(regs)) { /* User mode accesses just cause a SIGSEGV */ si_code = (fault == VM_FAULT_BADMAP) ? SEGV_MAPERR : SEGV_ACCERR; @@ -229,15 +230,19 @@ static noinline void do_fault_error(struct pt_regs *regs, int fault) case VM_FAULT_BADCONTEXT: do_no_context(regs); break; + case VM_FAULT_SIGNAL: + if (!user_mode(regs)) + do_no_context(regs); + break; default: /* fault & VM_FAULT_ERROR */ if (fault & VM_FAULT_OOM) { - if (!(regs->psw.mask & PSW_MASK_PSTATE)) + if (!user_mode(regs)) do_no_context(regs); else pagefault_out_of_memory(); } else if (fault & VM_FAULT_SIGBUS) { /* Kernel mode? Handle exceptions or die */ - if (!(regs->psw.mask & PSW_MASK_PSTATE)) + if (!user_mode(regs)) do_no_context(regs); else do_sigbus(regs); @@ -286,7 +291,7 @@ static inline int do_exception(struct pt_regs *regs, int access) address = trans_exc_code & __FAIL_ADDR_MASK; perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); - flags = FAULT_FLAG_ALLOW_RETRY; + flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE; if (access == VM_WRITE || (trans_exc_code & store_indication) == 0x400) flags |= FAULT_FLAG_WRITE; down_read(&mm->mmap_sem); @@ -335,6 +340,11 @@ retry: * the fault. */ fault = handle_mm_fault(mm, vma, address, flags); + /* No reason to continue if interrupted by SIGKILL. */ + if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) { + fault = VM_FAULT_SIGNAL; + goto out; + } if (unlikely(fault & VM_FAULT_ERROR)) goto out_up; @@ -426,7 +436,7 @@ void __kprobes do_asce_exception(struct pt_regs *regs) } /* User mode accesses just cause a SIGSEGV */ - if (regs->psw.mask & PSW_MASK_PSTATE) { + if (user_mode(regs)) { do_sigsegv(regs, SEGV_MAPERR); return; } @@ -441,6 +451,7 @@ int __handle_fault(unsigned long uaddr, unsigned long pgm_int_code, int write) struct pt_regs regs; int access, fault; + /* Emulate a uaccess fault from kernel mode. */ regs.psw.mask = psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_MCHECK; if (!irqs_disabled()) regs.psw.mask |= PSW_MASK_IO | PSW_MASK_EXT; @@ -450,12 +461,12 @@ int __handle_fault(unsigned long uaddr, unsigned long pgm_int_code, int write) regs.int_parm_long = (uaddr & PAGE_MASK) | 2; access = write ? VM_WRITE : VM_READ; fault = do_exception(®s, access); - if (unlikely(fault)) { - if (fault & VM_FAULT_OOM) - return -EFAULT; - else if (fault & VM_FAULT_SIGBUS) - do_sigbus(®s); - } + /* + * Since the fault happened in kernel mode while performing a uaccess + * all we need to do now is emulating a fixup in case "fault" is not + * zero. + * For the calling uaccess functions this results always in -EFAULT. + */ return fault ? -EFAULT : 0; } diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c index 5733842..c59a5ef 100644 --- a/arch/s390/mm/mmap.c +++ b/arch/s390/mm/mmap.c @@ -103,9 +103,15 @@ void arch_pick_mmap_layout(struct mm_struct *mm) int s390_mmap_check(unsigned long addr, unsigned long len) { + int rc; + if (!is_compat_task() && - len >= TASK_SIZE && TASK_SIZE < (1UL << 53)) - return crst_table_upgrade(current->mm, 1UL << 53); + len >= TASK_SIZE && TASK_SIZE < (1UL << 53)) { + rc = crst_table_upgrade(current->mm, 1UL << 53); + if (rc) + return rc; + update_mm(current->mm, current); + } return 0; } @@ -125,6 +131,7 @@ s390_get_unmapped_area(struct file *filp, unsigned long addr, rc = crst_table_upgrade(mm, 1UL << 53); if (rc) return (unsigned long) rc; + update_mm(mm, current); area = arch_get_unmapped_area(filp, addr, len, pgoff, flags); } return area; @@ -147,6 +154,7 @@ s390_get_unmapped_area_topdown(struct file *filp, const unsigned long addr, rc = crst_table_upgrade(mm, 1UL << 53); if (rc) return (unsigned long) rc; + update_mm(mm, current); area = arch_get_unmapped_area_topdown(filp, addr, len, pgoff, flags); } diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 1cab221..18df31d 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -85,7 +85,6 @@ repeat: crst_table_free(mm, table); if (mm->context.asce_limit < limit) goto repeat; - update_mm(mm, current); return 0; } @@ -93,9 +92,6 @@ void crst_table_downgrade(struct mm_struct *mm, unsigned long limit) { pgd_t *pgd; - if (mm->context.asce_limit <= limit) - return; - __tlb_flush_mm(mm); while (mm->context.asce_limit > limit) { pgd = mm->pgd; switch (pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) { @@ -118,7 +114,6 @@ void crst_table_downgrade(struct mm_struct *mm, unsigned long limit) mm->task_size = mm->context.asce_limit; crst_table_free(mm, (unsigned long *) pgd); } - update_mm(mm, current); } #endif @@ -801,7 +796,7 @@ int s390_enable_sie(void) struct mm_struct *mm, *old_mm; /* Do we have switched amode? If no, we cannot do sie */ - if (user_mode == HOME_SPACE_MODE) + if (addressing_mode == HOME_SPACE_MODE) return -EINVAL; /* Do we have pgstes? if yes, we are done */ diff --git a/arch/s390/oprofile/backtrace.c b/arch/s390/oprofile/backtrace.c index c82f62f..8a6811b 100644 --- a/arch/s390/oprofile/backtrace.c +++ b/arch/s390/oprofile/backtrace.c @@ -58,7 +58,7 @@ void s390_backtrace(struct pt_regs * const regs, unsigned int depth) unsigned long head; struct stack_frame* head_sf; - if (user_mode (regs)) + if (user_mode(regs)) return; head = regs->gprs[15]; diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index a24595d..36f5141 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -21,6 +21,7 @@ config SUPERH select HAVE_KERNEL_LZMA select HAVE_KERNEL_XZ select HAVE_KERNEL_LZO + select ARCH_WANT_IPC_PARSE_VERSION select HAVE_SYSCALL_TRACEPOINTS select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_GENERIC_HARDIRQS @@ -50,6 +51,7 @@ config SUPERH32 select HAVE_DYNAMIC_FTRACE select HAVE_FUNCTION_TRACE_MCOUNT_TEST select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE + select ARCH_WANT_IPC_PARSE_VERSION select HAVE_FUNCTION_GRAPH_TRACER select HAVE_ARCH_KGDB select HAVE_HW_BREAKPOINT diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig index 7048c03..fb58057 100644 --- a/arch/sh/boards/Kconfig +++ b/arch/sh/boards/Kconfig @@ -57,6 +57,7 @@ config SH_7724_SOLUTION_ENGINE depends on CPU_SUBTYPE_SH7724 select ARCH_REQUIRE_GPIOLIB select SND_SOC_AK4642 if SND_SIMPLE_CARD + select REGULATOR_FIXED_VOLTAGE if REGULATOR help Select 7724 SolutionEngine if configuring for a Hitachi SH7724 evaluation board. @@ -140,6 +141,7 @@ config SH_RSK bool "Renesas Starter Kit" depends on CPU_SUBTYPE_SH7201 || CPU_SUBTYPE_SH7203 || \ CPU_SUBTYPE_SH7264 || CPU_SUBTYPE_SH7269 + select REGULATOR_FIXED_VOLTAGE if REGULATOR help Select this option if configuring for any of the RSK+ MCU evaluation platforms. @@ -159,6 +161,7 @@ config SH_SDK7786 select NO_IOPORT if !PCI select ARCH_WANT_OPTIONAL_GPIOLIB select HAVE_SRAM_POOL + select REGULATOR_FIXED_VOLTAGE if REGULATOR help Select SDK7786 if configuring for a Renesas Technology Europe SH7786-65nm board. @@ -173,6 +176,7 @@ config SH_SH7757LCR bool "SH7757LCR" depends on CPU_SUBTYPE_SH7757 select ARCH_REQUIRE_GPIOLIB + select REGULATOR_FIXED_VOLTAGE if REGULATOR config SH_SH7785LCR bool "SH7785LCR" @@ -206,6 +210,7 @@ config SH_MIGOR bool "Migo-R" depends on CPU_SUBTYPE_SH7722 select ARCH_REQUIRE_GPIOLIB + select REGULATOR_FIXED_VOLTAGE if REGULATOR help Select Migo-R if configuring for the SH7722 Migo-R platform by Renesas System Solutions Asia Pte. Ltd. @@ -214,6 +219,7 @@ config SH_AP325RXA bool "AP-325RXA" depends on CPU_SUBTYPE_SH7723 select ARCH_REQUIRE_GPIOLIB + select REGULATOR_FIXED_VOLTAGE if REGULATOR help Renesas "AP-325RXA" support. Compatible with ALGO SYSTEM CO.,LTD. "AP-320A" @@ -222,6 +228,7 @@ config SH_KFR2R09 bool "KFR2R09" depends on CPU_SUBTYPE_SH7724 select ARCH_REQUIRE_GPIOLIB + select REGULATOR_FIXED_VOLTAGE if REGULATOR help "Kit For R2R for 2009" support. @@ -230,6 +237,7 @@ config SH_ECOVEC depends on CPU_SUBTYPE_SH7724 select ARCH_REQUIRE_GPIOLIB select SND_SOC_DA7210 if SND_SIMPLE_CARD + select REGULATOR_FIXED_VOLTAGE if REGULATOR help Renesas "R0P7724LC0011/21RL (EcoVec)" support. @@ -305,6 +313,7 @@ config SH_MAGIC_PANEL_R2 bool "Magic Panel R2" depends on CPU_SUBTYPE_SH7720 select ARCH_REQUIRE_GPIOLIB + select REGULATOR_FIXED_VOLTAGE if REGULATOR help Select Magic Panel R2 if configuring for Magic Panel R2. @@ -316,6 +325,7 @@ config SH_CAYMAN config SH_POLARIS bool "SMSC Polaris" select CPU_HAS_IPR_IRQ + select REGULATOR_FIXED_VOLTAGE if REGULATOR depends on CPU_SUBTYPE_SH7709 help Select if configuring for an SMSC Polaris development board @@ -323,6 +333,7 @@ config SH_POLARIS config SH_SH2007 bool "SH-2007 board" select NO_IOPORT + select REGULATOR_FIXED_VOLTAGE if REGULATOR depends on CPU_SUBTYPE_SH7780 help SH-2007 is a single-board computer based around SH7780 chip @@ -334,6 +345,7 @@ config SH_SH2007 config SH_APSH4A3A bool "AP-SH4A-3A" select SH_ALPHA_BOARD + select REGULATOR_FIXED_VOLTAGE if REGULATOR depends on CPU_SUBTYPE_SH7785 help Select AP-SH4A-3A if configuring for an ALPHAPROJECT AP-SH4A-3A. @@ -342,6 +354,7 @@ config SH_APSH4AD0A bool "AP-SH4AD-0A" select SH_ALPHA_BOARD select SYS_SUPPORTS_PCI + select REGULATOR_FIXED_VOLTAGE if REGULATOR depends on CPU_SUBTYPE_SH7786 help Select AP-SH4AD-0A if configuring for an ALPHAPROJECT AP-SH4AD-0A. diff --git a/arch/sh/boards/board-apsh4a3a.c b/arch/sh/boards/board-apsh4a3a.c index 2823619..0a39c24 100644 --- a/arch/sh/boards/board-apsh4a3a.c +++ b/arch/sh/boards/board-apsh4a3a.c @@ -13,6 +13,8 @@ #include #include #include +#include +#include #include #include #include @@ -66,6 +68,12 @@ static struct platform_device nor_flash_device = { .resource = nor_flash_resources, }; +/* Dummy supplies, where voltage doesn't matter */ +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x"), + REGULATOR_SUPPLY("vdd33a", "smsc911x"), +}; + static struct resource smsc911x_resources[] = { [0] = { .name = "smsc911x-memory", @@ -105,6 +113,8 @@ static struct platform_device *apsh4a3a_devices[] __initdata = { static int __init apsh4a3a_devices_setup(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + return platform_add_devices(apsh4a3a_devices, ARRAY_SIZE(apsh4a3a_devices)); } diff --git a/arch/sh/boards/board-apsh4ad0a.c b/arch/sh/boards/board-apsh4ad0a.c index b4d6292..92eac3a 100644 --- a/arch/sh/boards/board-apsh4ad0a.c +++ b/arch/sh/boards/board-apsh4ad0a.c @@ -12,12 +12,20 @@ #include #include #include +#include +#include #include #include #include #include #include +/* Dummy supplies, where voltage doesn't matter */ +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x"), + REGULATOR_SUPPLY("vdd33a", "smsc911x"), +}; + static struct resource smsc911x_resources[] = { [0] = { .name = "smsc911x-memory", @@ -56,6 +64,8 @@ static struct platform_device *apsh4ad0a_devices[] __initdata = { static int __init apsh4ad0a_devices_setup(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + return platform_add_devices(apsh4ad0a_devices, ARRAY_SIZE(apsh4ad0a_devices)); } diff --git a/arch/sh/boards/board-magicpanelr2.c b/arch/sh/boards/board-magicpanelr2.c index 90568f9..2050085 100644 --- a/arch/sh/boards/board-magicpanelr2.c +++ b/arch/sh/boards/board-magicpanelr2.c @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include #include #include @@ -24,6 +26,12 @@ #include #include +/* Dummy supplies, where voltage doesn't matter */ +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x"), + REGULATOR_SUPPLY("vdd33a", "smsc911x"), +}; + #define LAN9115_READY (__raw_readl(0xA8000084UL) & 0x00000001UL) /* Wait until reset finished. Timeout is 100ms. */ @@ -348,6 +356,8 @@ static struct platform_device *mpr2_devices[] __initdata = { static int __init mpr2_devices_setup(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + return platform_add_devices(mpr2_devices, ARRAY_SIZE(mpr2_devices)); } device_initcall(mpr2_devices_setup); diff --git a/arch/sh/boards/board-polaris.c b/arch/sh/boards/board-polaris.c index 0978ae2..37a08d0 100644 --- a/arch/sh/boards/board-polaris.c +++ b/arch/sh/boards/board-polaris.c @@ -9,6 +9,8 @@ #include #include #include +#include +#include #include #include #include @@ -22,6 +24,12 @@ #define AREA5_WAIT_CTRL (0x1C00) #define WAIT_STATES_10 (0x7) +/* Dummy supplies, where voltage doesn't matter */ +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), +}; + static struct resource smsc911x_resources[] = { [0] = { .name = "smsc911x-memory", @@ -88,6 +96,8 @@ static int __init polaris_initialise(void) printk(KERN_INFO "Configuring Polaris external bus\n"); + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + /* Configure area 5 with 2 wait states */ wcr = __raw_readw(WCR2); wcr &= (~AREA5_WAIT_CTRL); diff --git a/arch/sh/boards/board-sh2007.c b/arch/sh/boards/board-sh2007.c index b90b78f..1980bb7 100644 --- a/arch/sh/boards/board-sh2007.c +++ b/arch/sh/boards/board-sh2007.c @@ -6,6 +6,8 @@ */ #include #include +#include +#include #include #include #include @@ -13,6 +15,14 @@ #include #include +/* Dummy supplies, where voltage doesn't matter */ +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x.0"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.0"), + REGULATOR_SUPPLY("vddvario", "smsc911x.1"), + REGULATOR_SUPPLY("vdd33a", "smsc911x.1"), +}; + struct smsc911x_platform_config smc911x_info = { .flags = SMSC911X_USE_32BIT, .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, @@ -98,6 +108,8 @@ static struct platform_device *sh2007_devices[] __initdata = { static int __init sh2007_io_init(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + platform_add_devices(sh2007_devices, ARRAY_SIZE(sh2007_devices)); return 0; } diff --git a/arch/sh/boards/board-sh7757lcr.c b/arch/sh/boards/board-sh7757lcr.c index 5087f8b..41f8670 100644 --- a/arch/sh/boards/board-sh7757lcr.c +++ b/arch/sh/boards/board-sh7757lcr.c @@ -12,6 +12,8 @@ #include #include #include +#include +#include #include #include #include @@ -199,6 +201,15 @@ static struct platform_device sh7757_eth_giga1_device = { }, }; +/* Fixed 3.3V regulator to be used by SDHI0, MMCIF */ +static struct regulator_consumer_supply fixed3v3_power_consumers[] = +{ + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"), + REGULATOR_SUPPLY("vqmmc", "sh_mmcif.0"), +}; + /* SH_MMCIF */ static struct resource sh_mmcif_resources[] = { [0] = { @@ -329,6 +340,9 @@ static struct spi_board_info spi_board_info[] = { static int __init sh7757lcr_devices_setup(void) { + regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers, + ARRAY_SIZE(fixed3v3_power_consumers), 3300000); + /* RGMII (PTA) */ gpio_request(GPIO_FN_ET0_MDC, NULL); gpio_request(GPIO_FN_ET0_MDIO, NULL); diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c index f33ebf4..9e963c1 100644 --- a/arch/sh/boards/mach-ap325rxa/setup.c +++ b/arch/sh/boards/mach-ap325rxa/setup.c @@ -20,6 +20,8 @@ #include #include #include +#include +#include #include #include #include @@ -34,6 +36,12 @@ #include #include +/* Dummy supplies, where voltage doesn't matter */ +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x"), + REGULATOR_SUPPLY("vdd33a", "smsc911x"), +}; + static struct smsc911x_platform_config smsc911x_config = { .phy_interface = PHY_INTERFACE_MODE_MII, .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, @@ -423,6 +431,15 @@ static struct platform_device ceu_device = { }, }; +/* Fixed 3.3V regulators to be used by SDHI0, SDHI1 */ +static struct regulator_consumer_supply fixed3v3_power_consumers[] = +{ + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.1"), +}; + static struct resource sdhi0_cn3_resources[] = { [0] = { .name = "SDHI0", @@ -544,6 +561,10 @@ static int __init ap325rxa_devices_setup(void) &ap325rxa_sdram_leave_start, &ap325rxa_sdram_leave_end); + regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers, + ARRAY_SIZE(fixed3v3_power_consumers), 3300000); + regulator_register_fixed(1, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + /* LD3 and LD4 LEDs */ gpio_request(GPIO_PTX5, NULL); /* RUN */ gpio_direction_output(GPIO_PTX5, 1); diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c index 4158d70..64559e8a 100644 --- a/arch/sh/boards/mach-ecovec24/setup.c +++ b/arch/sh/boards/mach-ecovec24/setup.c @@ -19,6 +19,8 @@ #include #include #include +#include +#include #include #include #include @@ -242,9 +244,17 @@ static int usbhs_get_id(struct platform_device *pdev) return gpio_get_value(GPIO_PTB3); } +static void usbhs_phy_reset(struct platform_device *pdev) +{ + /* enable vbus if HOST */ + if (!gpio_get_value(GPIO_PTB3)) + gpio_set_value(GPIO_PTB5, 1); +} + static struct renesas_usbhs_platform_info usbhs_info = { .platform_callback = { .get_id = usbhs_get_id, + .phy_reset = usbhs_phy_reset, }, .driver_param = { .buswait_bwait = 4, @@ -518,10 +528,86 @@ static struct i2c_board_info ts_i2c_clients = { .irq = IRQ0, }; +static struct regulator_consumer_supply cn12_power_consumers[] = +{ + REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"), + REGULATOR_SUPPLY("vqmmc", "sh_mmcif.0"), + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.1"), +}; + +static struct regulator_init_data cn12_power_init_data = { + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = ARRAY_SIZE(cn12_power_consumers), + .consumer_supplies = cn12_power_consumers, +}; + +static struct fixed_voltage_config cn12_power_info = { + .supply_name = "CN12 SD/MMC Vdd", + .microvolts = 3300000, + .gpio = GPIO_PTB7, + .enable_high = 1, + .init_data = &cn12_power_init_data, +}; + +static struct platform_device cn12_power = { + .name = "reg-fixed-voltage", + .id = 0, + .dev = { + .platform_data = &cn12_power_info, + }, +}; + #if defined(CONFIG_MMC_SDHI) || defined(CONFIG_MMC_SDHI_MODULE) /* SDHI0 */ +static struct regulator_consumer_supply sdhi0_power_consumers[] = +{ + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"), +}; + +static struct regulator_init_data sdhi0_power_init_data = { + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = ARRAY_SIZE(sdhi0_power_consumers), + .consumer_supplies = sdhi0_power_consumers, +}; + +static struct fixed_voltage_config sdhi0_power_info = { + .supply_name = "CN11 SD/MMC Vdd", + .microvolts = 3300000, + .gpio = GPIO_PTB6, + .enable_high = 1, + .init_data = &sdhi0_power_init_data, +}; + +static struct platform_device sdhi0_power = { + .name = "reg-fixed-voltage", + .id = 1, + .dev = { + .platform_data = &sdhi0_power_info, + }, +}; + static void sdhi0_set_pwr(struct platform_device *pdev, int state) { + static int power_gpio = -EINVAL; + + if (power_gpio < 0) { + int ret = gpio_request(GPIO_PTB6, NULL); + if (!ret) { + power_gpio = GPIO_PTB6; + gpio_direction_output(power_gpio, 0); + } + } + + /* + * Toggle the GPIO regardless, whether we managed to grab it above or + * the fixed regulator driver did. + */ gpio_set_value(GPIO_PTB6, state); } @@ -562,13 +648,27 @@ static struct platform_device sdhi0_device = { }, }; -#if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE) -/* SDHI1 */ -static void sdhi1_set_pwr(struct platform_device *pdev, int state) +static void cn12_set_pwr(struct platform_device *pdev, int state) { + static int power_gpio = -EINVAL; + + if (power_gpio < 0) { + int ret = gpio_request(GPIO_PTB7, NULL); + if (!ret) { + power_gpio = GPIO_PTB7; + gpio_direction_output(power_gpio, 0); + } + } + + /* + * Toggle the GPIO regardless, whether we managed to grab it above or + * the fixed regulator driver did. + */ gpio_set_value(GPIO_PTB7, state); } +#if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE) +/* SDHI1 */ static int sdhi1_get_cd(struct platform_device *pdev) { return !gpio_get_value(GPIO_PTW7); @@ -579,7 +679,7 @@ static struct sh_mobile_sdhi_info sdhi1_info = { .dma_slave_rx = SHDMA_SLAVE_SDHI1_RX, .tmio_caps = MMC_CAP_SDIO_IRQ | MMC_CAP_POWER_OFF_CARD | MMC_CAP_NEEDS_POLL, - .set_pwr = sdhi1_set_pwr, + .set_pwr = cn12_set_pwr, .get_cd = sdhi1_get_cd, }; @@ -899,14 +999,9 @@ static struct platform_device vou_device = { #if defined(CONFIG_MMC_SH_MMCIF) || defined(CONFIG_MMC_SH_MMCIF_MODULE) /* SH_MMCIF */ -static void mmcif_set_pwr(struct platform_device *pdev, int state) -{ - gpio_set_value(GPIO_PTB7, state); -} - static void mmcif_down_pwr(struct platform_device *pdev) { - gpio_set_value(GPIO_PTB7, 0); + cn12_set_pwr(pdev, 0); } static struct resource sh_mmcif_resources[] = { @@ -929,7 +1024,7 @@ static struct resource sh_mmcif_resources[] = { }; static struct sh_mmcif_plat_data sh_mmcif_plat = { - .set_pwr = mmcif_set_pwr, + .set_pwr = cn12_set_pwr, .down_pwr = mmcif_down_pwr, .sup_pclk = 0, /* SH7724: Max Pclk/2 */ .caps = MMC_CAP_4_BIT_DATA | @@ -960,7 +1055,9 @@ static struct platform_device *ecovec_devices[] __initdata = { &ceu0_device, &ceu1_device, &keysc_device, + &cn12_power, #if defined(CONFIG_MMC_SDHI) || defined(CONFIG_MMC_SDHI_MODULE) + &sdhi0_power, &sdhi0_device, #if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE) &sdhi1_device, @@ -1258,8 +1355,6 @@ static int __init arch_setup(void) gpio_request(GPIO_FN_SDHI0D2, NULL); gpio_request(GPIO_FN_SDHI0D1, NULL); gpio_request(GPIO_FN_SDHI0D0, NULL); - gpio_request(GPIO_PTB6, NULL); - gpio_direction_output(GPIO_PTB6, 0); #else /* enable MSIOF0 on CN11 (needs DS2.4 set to OFF) */ gpio_request(GPIO_FN_MSIOF0_TXD, NULL); @@ -1288,8 +1383,6 @@ static int __init arch_setup(void) gpio_request(GPIO_FN_MMC_D0, NULL); gpio_request(GPIO_FN_MMC_CLK, NULL); gpio_request(GPIO_FN_MMC_CMD, NULL); - gpio_request(GPIO_PTB7, NULL); - gpio_direction_output(GPIO_PTB7, 0); cn12_enabled = true; #elif defined(CONFIG_MMC_SDHI) || defined(CONFIG_MMC_SDHI_MODULE) @@ -1301,8 +1394,6 @@ static int __init arch_setup(void) gpio_request(GPIO_FN_SDHI1D2, NULL); gpio_request(GPIO_FN_SDHI1D1, NULL); gpio_request(GPIO_FN_SDHI1D0, NULL); - gpio_request(GPIO_PTB7, NULL); - gpio_direction_output(GPIO_PTB7, 0); /* Card-detect, used on CN12 with SDHI1 */ gpio_request(GPIO_PTW7, NULL); diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c index 43a179c..f2a4304 100644 --- a/arch/sh/boards/mach-kfr2r09/setup.c +++ b/arch/sh/boards/mach-kfr2r09/setup.c @@ -21,6 +21,8 @@ #include #include #include +#include +#include #include #include #include @@ -341,6 +343,13 @@ static struct platform_device kfr2r09_camera = { }, }; +/* Fixed 3.3V regulator to be used by SDHI0 */ +static struct regulator_consumer_supply fixed3v3_power_consumers[] = +{ + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"), +}; + static struct resource kfr2r09_sh_sdhi0_resources[] = { [0] = { .name = "SDHI0", @@ -523,6 +532,9 @@ static int __init kfr2r09_devices_setup(void) &kfr2r09_sdram_leave_start, &kfr2r09_sdram_leave_end); + regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers, + ARRAY_SIZE(fixed3v3_power_consumers), 3300000); + /* enable SCIF1 serial port for YC401 console support */ gpio_request(GPIO_FN_SCIF1_RXD, NULL); gpio_request(GPIO_FN_SCIF1_TXD, NULL); diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c index a8a1ca7..8b73194 100644 --- a/arch/sh/boards/mach-migor/setup.c +++ b/arch/sh/boards/mach-migor/setup.c @@ -17,6 +17,8 @@ #include #include #include +#include +#include #include #include #include @@ -386,6 +388,13 @@ static struct platform_device migor_ceu_device = { }, }; +/* Fixed 3.3V regulator to be used by SDHI0 */ +static struct regulator_consumer_supply fixed3v3_power_consumers[] = +{ + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"), +}; + static struct resource sdhi_cn9_resources[] = { [0] = { .name = "SDHI", @@ -498,6 +507,10 @@ static int __init migor_devices_setup(void) &migor_sdram_enter_end, &migor_sdram_leave_start, &migor_sdram_leave_end); + + regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers, + ARRAY_SIZE(fixed3v3_power_consumers), 3300000); + /* Let D11 LED show STATUS0 */ gpio_request(GPIO_FN_STATUS0, NULL); diff --git a/arch/sh/boards/mach-rsk/setup.c b/arch/sh/boards/mach-rsk/setup.c index 895f030..2685ea0 100644 --- a/arch/sh/boards/mach-rsk/setup.c +++ b/arch/sh/boards/mach-rsk/setup.c @@ -16,9 +16,17 @@ #include #include #include +#include +#include #include #include +/* Dummy supplies, where voltage doesn't matter */ +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x"), + REGULATOR_SUPPLY("vdd33a", "smsc911x"), +}; + static const char *part_probes[] = { "cmdlinepart", NULL }; static struct mtd_partition rsk_partitions[] = { @@ -67,6 +75,8 @@ static struct platform_device *rsk_devices[] __initdata = { static int __init rsk_devices_setup(void) { + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + return platform_add_devices(rsk_devices, ARRAY_SIZE(rsk_devices)); } diff --git a/arch/sh/boards/mach-sdk7786/setup.c b/arch/sh/boards/mach-sdk7786/setup.c index 27a2314..c29268b 100644 --- a/arch/sh/boards/mach-sdk7786/setup.c +++ b/arch/sh/boards/mach-sdk7786/setup.c @@ -11,6 +11,8 @@ #include #include #include +#include +#include #include #include #include @@ -38,6 +40,12 @@ static struct platform_device heartbeat_device = { .resource = &heartbeat_resource, }; +/* Dummy supplies, where voltage doesn't matter */ +static struct regulator_consumer_supply dummy_supplies[] = { + REGULATOR_SUPPLY("vddvario", "smsc911x"), + REGULATOR_SUPPLY("vdd33a", "smsc911x"), +}; + static struct resource smsc911x_resources[] = { [0] = { .name = "smsc911x-memory", @@ -236,6 +244,8 @@ static void __init sdk7786_setup(char **cmdline_p) { pr_info("Renesas Technology Europe SDK7786 support:\n"); + regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + sdk7786_fpga_init(); sdk7786_nmi_init(); diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c index ffbf5bc..35f6efa 100644 --- a/arch/sh/boards/mach-se/7724/setup.c +++ b/arch/sh/boards/mach-se/7724/setup.c @@ -18,6 +18,8 @@ #include #include #include +#include +#include #include #include #include @@ -454,6 +456,15 @@ static struct platform_device sh7724_usb1_gadget_device = { .resource = sh7724_usb1_gadget_resources, }; +/* Fixed 3.3V regulator to be used by SDHI0, SDHI1 */ +static struct regulator_consumer_supply fixed3v3_power_consumers[] = +{ + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"), + REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.1"), +}; + static struct resource sdhi0_cn7_resources[] = { [0] = { .name = "SDHI0", @@ -684,6 +695,10 @@ static int __init devices_setup(void) &ms7724se_sdram_enter_end, &ms7724se_sdram_leave_start, &ms7724se_sdram_leave_end); + + regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers, + ARRAY_SIZE(fixed3v3_power_consumers), 3300000); + /* Reset Release */ fpga_out = __raw_readw(FPGA_OUT); /* bit4: NTSC_PDN, bit5: NTSC_RESET */ diff --git a/arch/sh/configs/apsh4ad0a_defconfig b/arch/sh/configs/apsh4ad0a_defconfig index e758348..95ae23f 100644 --- a/arch/sh/configs/apsh4ad0a_defconfig +++ b/arch/sh/configs/apsh4ad0a_defconfig @@ -11,7 +11,7 @@ CONFIG_CGROUP_FREEZER=y CONFIG_CGROUP_DEVICE=y CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y +CONFIG_CGROUP_MEMCG=y CONFIG_BLK_CGROUP=y CONFIG_NAMESPACES=y CONFIG_BLK_DEV_INITRD=y diff --git a/arch/sh/configs/sdk7786_defconfig b/arch/sh/configs/sdk7786_defconfig index 8a7dd7b..76a76a2 100644 --- a/arch/sh/configs/sdk7786_defconfig +++ b/arch/sh/configs/sdk7786_defconfig @@ -18,8 +18,8 @@ CONFIG_CPUSETS=y # CONFIG_PROC_PID_CPUSET is not set CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y -CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y +CONFIG_CGROUP_MEMCG=y +CONFIG_CGROUP_MEMCG_SWAP=y CONFIG_CGROUP_SCHED=y CONFIG_RT_GROUP_SCHED=y CONFIG_BLK_CGROUP=y diff --git a/arch/sh/configs/se7206_defconfig b/arch/sh/configs/se7206_defconfig index 72c3fad..6bc30ab 100644 --- a/arch/sh/configs/se7206_defconfig +++ b/arch/sh/configs/se7206_defconfig @@ -11,7 +11,7 @@ CONFIG_CGROUP_DEBUG=y CONFIG_CGROUP_DEVICE=y CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y +CONFIG_CGROUP_MEMCG=y CONFIG_RELAY=y CONFIG_NAMESPACES=y CONFIG_UTS_NS=y diff --git a/arch/sh/configs/shx3_defconfig b/arch/sh/configs/shx3_defconfig index 6bb4130..cd6c519 100644 --- a/arch/sh/configs/shx3_defconfig +++ b/arch/sh/configs/shx3_defconfig @@ -13,7 +13,7 @@ CONFIG_CGROUP_FREEZER=y CONFIG_CGROUP_DEVICE=y CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y +CONFIG_CGROUP_MEMCG=y CONFIG_RELAY=y CONFIG_NAMESPACES=y CONFIG_UTS_NS=y diff --git a/arch/sh/configs/urquell_defconfig b/arch/sh/configs/urquell_defconfig index 8bfa4d0..d7f89be 100644 --- a/arch/sh/configs/urquell_defconfig +++ b/arch/sh/configs/urquell_defconfig @@ -15,8 +15,8 @@ CONFIG_CPUSETS=y # CONFIG_PROC_PID_CPUSET is not set CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y -CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y +CONFIG_CGROUP_MEMCG=y +CONFIG_CGROUP_MEMCG_SWAP=y CONFIG_CGROUP_SCHED=y CONFIG_RT_GROUP_SCHED=y CONFIG_BLK_DEV_INITRD=y diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h index e800a38..7bc6707 100644 --- a/arch/sh/include/asm/unistd.h +++ b/arch/sh/include/asm/unistd.h @@ -6,7 +6,6 @@ # endif # define __ARCH_WANT_SYS_RT_SIGSUSPEND -# define __ARCH_WANT_IPC_PARSE_VERSION # define __ARCH_WANT_OLD_READDIR # define __ARCH_WANT_OLD_STAT # define __ARCH_WANT_STAT64 diff --git a/arch/sh/include/cpu-sh4/cpu/sh7757.h b/arch/sh/include/cpu-sh4/cpu/sh7757.h index 41f9f8b..5340f3b 100644 --- a/arch/sh/include/cpu-sh4/cpu/sh7757.h +++ b/arch/sh/include/cpu-sh4/cpu/sh7757.h @@ -283,5 +283,7 @@ enum { SHDMA_SLAVE_RIIC8_RX, SHDMA_SLAVE_RIIC9_TX, SHDMA_SLAVE_RIIC9_RX, + SHDMA_SLAVE_RSPI_TX, + SHDMA_SLAVE_RSPI_RX, }; #endif /* __ASM_SH7757_H__ */ diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c index c87e78f..5f30f80 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c @@ -334,8 +334,8 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("tpu0", &mstp_clks[HWBLK_TPU]), CLKDEV_CON_ID("irda0", &mstp_clks[HWBLK_IRDA]), CLKDEV_CON_ID("tsif0", &mstp_clks[HWBLK_TSIF]), - CLKDEV_CON_ID("usb1", &mstp_clks[HWBLK_USB1]), - CLKDEV_CON_ID("usb0", &mstp_clks[HWBLK_USB0]), + CLKDEV_DEV_ID("renesas_usbhs.1", &mstp_clks[HWBLK_USB1]), + CLKDEV_DEV_ID("renesas_usbhs.0", &mstp_clks[HWBLK_USB0]), CLKDEV_CON_ID("2dg0", &mstp_clks[HWBLK_2DG]), CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[HWBLK_SDHI0]), CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[HWBLK_SDHI1]), diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c index 65786c7..6a868b0 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7757.c b/arch/sh/kernel/cpu/sh4a/setup-sh7757.c index a770842..4a2f357 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7757.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7757.c @@ -216,6 +216,20 @@ static const struct sh_dmae_slave_config sh7757_dmae1_slaves[] = { TS_INDEX2VAL(XMIT_SZ_8BIT), .mid_rid = 0x42, }, + { + .slave_id = SHDMA_SLAVE_RSPI_TX, + .addr = 0xfe480004, + .chcr = SM_INC | 0x800 | 0x40000000 | + TS_INDEX2VAL(XMIT_SZ_16BIT), + .mid_rid = 0xc1, + }, + { + .slave_id = SHDMA_SLAVE_RSPI_RX, + .addr = 0xfe480004, + .chcr = DM_INC | 0x800 | 0x40000000 | + TS_INDEX2VAL(XMIT_SZ_16BIT), + .mid_rid = 0xc2, + }, }; static const struct sh_dmae_slave_config sh7757_dmae2_slaves[] = { diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index 1fc25d8..3bdc1ad 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -58,11 +58,15 @@ static void show_pte(struct mm_struct *mm, unsigned long addr) { pgd_t *pgd; - if (mm) + if (mm) { pgd = mm->pgd; - else + } else { pgd = get_TTB(); + if (unlikely(!pgd)) + pgd = swapper_pg_dir; + } + printk(KERN_ALERT "pgd = %p\n", pgd); pgd += pgd_index(addr); printk(KERN_ALERT "[%08lx] *pgd=%0*Lx", addr, diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index e74ff13..67f1f6f 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -27,6 +27,7 @@ config SPARC select HAVE_ARCH_JUMP_LABEL select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW + select ARCH_WANT_IPC_PARSE_VERSION select USE_GENERIC_SMP_HELPERS if SMP select GENERIC_PCI_IOMAP select HAVE_NMI_WATCHDOG if SPARC64 diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h index c7cb0af..fb26934 100644 --- a/arch/sparc/include/asm/unistd.h +++ b/arch/sparc/include/asm/unistd.h @@ -423,7 +423,6 @@ #endif #ifdef __KERNEL__ -#define __ARCH_WANT_IPC_PARSE_VERSION #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_ALARM diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index 435e406..81d92fc 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -1250,14 +1250,12 @@ int ldc_bind(struct ldc_channel *lp, const char *name) snprintf(lp->rx_irq_name, LDC_IRQ_NAME_MAX, "%s RX", name); snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name); - err = request_irq(lp->cfg.rx_irq, ldc_rx, - IRQF_SAMPLE_RANDOM | IRQF_DISABLED, + err = request_irq(lp->cfg.rx_irq, ldc_rx, IRQF_DISABLED, lp->rx_irq_name, lp); if (err) return err; - err = request_irq(lp->cfg.tx_irq, ldc_tx, - IRQF_SAMPLE_RANDOM | IRQF_DISABLED, + err = request_irq(lp->cfg.tx_irq, ldc_tx, IRQF_DISABLED, lp->tx_irq_name, lp); if (err) { free_irq(lp->cfg.rx_irq, lp); diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index c38e5aa..0dc1f57 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -470,7 +470,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second switch (call) { case SHMAT: { ulong raddr; - err = do_shmat(first, ptr, (int)second, &raddr); + err = do_shmat(first, ptr, (int)second, &raddr, SHMLBA); if (!err) { if (put_user(raddr, (ulong __user *) third)) diff --git a/arch/tile/configs/tilegx_defconfig b/arch/tile/configs/tilegx_defconfig index b8d99ac..0270620 100644 --- a/arch/tile/configs/tilegx_defconfig +++ b/arch/tile/configs/tilegx_defconfig @@ -18,8 +18,8 @@ CONFIG_CGROUP_DEVICE=y CONFIG_CPUSETS=y CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y -CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y +CONFIG_CGROUP_MEMCG=y +CONFIG_CGROUP_MEMCG_SWAP=y CONFIG_CGROUP_SCHED=y CONFIG_RT_GROUP_SCHED=y CONFIG_BLK_CGROUP=y diff --git a/arch/tile/configs/tilepro_defconfig b/arch/tile/configs/tilepro_defconfig index 2b1fd31..c11de27 100644 --- a/arch/tile/configs/tilepro_defconfig +++ b/arch/tile/configs/tilepro_defconfig @@ -17,8 +17,8 @@ CONFIG_CGROUP_DEVICE=y CONFIG_CPUSETS=y CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y -CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y +CONFIG_CGROUP_MEMCG=y +CONFIG_CGROUP_MEMCG_SWAP=y CONFIG_CGROUP_SCHED=y CONFIG_RT_GROUP_SCHED=y CONFIG_BLK_CGROUP=y diff --git a/arch/um/defconfig b/arch/um/defconfig index 7823ab1..08107a7 100644 --- a/arch/um/defconfig +++ b/arch/um/defconfig @@ -155,15 +155,15 @@ CONFIG_CPUSETS=y CONFIG_PROC_PID_CPUSET=y CONFIG_CGROUP_CPUACCT=y CONFIG_RESOURCE_COUNTERS=y -CONFIG_CGROUP_MEM_RES_CTLR=y -CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y -# CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED is not set -# CONFIG_CGROUP_MEM_RES_CTLR_KMEM is not set +CONFIG_CGROUP_MEMCG=y +CONFIG_CGROUP_MEMCG_SWAP=y +# CONFIG_CGROUP_MEMCG_SWAP_ENABLED is not set +# CONFIG_CGROUP_MEMCG_KMEM is not set CONFIG_CGROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y # CONFIG_CFS_BANDWIDTH is not set # CONFIG_RT_GROUP_SCHED is not set -CONFIG_BLK_CGROUP=m +CONFIG_BLK_CGROUP=y # CONFIG_DEBUG_BLK_CGROUP is not set # CONFIG_CHECKPOINT_RESTORE is not set CONFIG_NAMESPACES=y diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index 45e248c..87eebfe 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c @@ -150,9 +150,11 @@ void chan_enable_winch(struct chan *chan, struct tty_struct *tty) static void line_timer_cb(struct work_struct *work) { struct line *line = container_of(work, struct line, task.work); + struct tty_struct *tty = tty_port_tty_get(&line->port); if (!line->throttled) - chan_interrupt(line, line->tty, line->driver->read_irq); + chan_interrupt(line, tty, line->driver->read_irq); + tty_kref_put(tty); } int enable_chan(struct line *line) diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index acfd0e0..bbaf2c5 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -19,9 +19,11 @@ static irqreturn_t line_interrupt(int irq, void *data) { struct chan *chan = data; struct line *line = chan->line; + struct tty_struct *tty = tty_port_tty_get(&line->port); if (line) - chan_interrupt(line, line->tty, irq); + chan_interrupt(line, tty, irq); + tty_kref_put(tty); return IRQ_HANDLED; } @@ -219,92 +221,6 @@ void line_set_termios(struct tty_struct *tty, struct ktermios * old) /* nothing */ } -static const struct { - int cmd; - char *level; - char *name; -} tty_ioctls[] = { - /* don't print these, they flood the log ... */ - { TCGETS, NULL, "TCGETS" }, - { TCSETS, NULL, "TCSETS" }, - { TCSETSW, NULL, "TCSETSW" }, - { TCFLSH, NULL, "TCFLSH" }, - { TCSBRK, NULL, "TCSBRK" }, - - /* general tty stuff */ - { TCSETSF, KERN_DEBUG, "TCSETSF" }, - { TCGETA, KERN_DEBUG, "TCGETA" }, - { TIOCMGET, KERN_DEBUG, "TIOCMGET" }, - { TCSBRKP, KERN_DEBUG, "TCSBRKP" }, - { TIOCMSET, KERN_DEBUG, "TIOCMSET" }, - - /* linux-specific ones */ - { TIOCLINUX, KERN_INFO, "TIOCLINUX" }, - { KDGKBMODE, KERN_INFO, "KDGKBMODE" }, - { KDGKBTYPE, KERN_INFO, "KDGKBTYPE" }, - { KDSIGACCEPT, KERN_INFO, "KDSIGACCEPT" }, -}; - -int line_ioctl(struct tty_struct *tty, unsigned int cmd, - unsigned long arg) -{ - int ret; - int i; - - ret = 0; - switch(cmd) { -#ifdef TIOCGETP - case TIOCGETP: - case TIOCSETP: - case TIOCSETN: -#endif -#ifdef TIOCGETC - case TIOCGETC: - case TIOCSETC: -#endif -#ifdef TIOCGLTC - case TIOCGLTC: - case TIOCSLTC: -#endif - /* Note: these are out of date as we now have TCGETS2 etc but this - whole lot should probably go away */ - case TCGETS: - case TCSETSF: - case TCSETSW: - case TCSETS: - case TCGETA: - case TCSETAF: - case TCSETAW: - case TCSETA: - case TCXONC: - case TCFLSH: - case TIOCOUTQ: - case TIOCINQ: - case TIOCGLCKTRMIOS: - case TIOCSLCKTRMIOS: - case TIOCPKT: - case TIOCGSOFTCAR: - case TIOCSSOFTCAR: - return -ENOIOCTLCMD; -#if 0 - case TCwhatever: - /* do something */ - break; -#endif - default: - for (i = 0; i < ARRAY_SIZE(tty_ioctls); i++) - if (cmd == tty_ioctls[i].cmd) - break; - if (i == ARRAY_SIZE(tty_ioctls)) { - printk(KERN_ERR "%s: %s: unknown ioctl: 0x%x\n", - __func__, tty->name, cmd); - } - ret = -ENOIOCTLCMD; - break; - } - return ret; -} - void line_throttle(struct tty_struct *tty) { struct line *line = tty->driver_data; @@ -333,7 +249,7 @@ static irqreturn_t line_write_interrupt(int irq, void *data) { struct chan *chan = data; struct line *line = chan->line; - struct tty_struct *tty = line->tty; + struct tty_struct *tty; int err; /* @@ -352,68 +268,42 @@ static irqreturn_t line_write_interrupt(int irq, void *data) } spin_unlock(&line->lock); + tty = tty_port_tty_get(&line->port); if (tty == NULL) return IRQ_NONE; tty_wakeup(tty); + tty_kref_put(tty); + return IRQ_HANDLED; } int line_setup_irq(int fd, int input, int output, struct line *line, void *data) { const struct line_driver *driver = line->driver; - int err = 0, flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM; + int err = 0; if (input) err = um_request_irq(driver->read_irq, fd, IRQ_READ, - line_interrupt, flags, - driver->read_irq_name, data); + line_interrupt, IRQF_SHARED, + driver->read_irq_name, data); if (err) return err; if (output) err = um_request_irq(driver->write_irq, fd, IRQ_WRITE, - line_write_interrupt, flags, - driver->write_irq_name, data); + line_write_interrupt, IRQF_SHARED, + driver->write_irq_name, data); return err; } -/* - * Normally, a driver like this can rely mostly on the tty layer - * locking, particularly when it comes to the driver structure. - * However, in this case, mconsole requests can come in "from the - * side", and race with opens and closes. - * - * mconsole config requests will want to be sure the device isn't in - * use, and get_config, open, and close will want a stable - * configuration. The checking and modification of the configuration - * is done under a spinlock. Checking whether the device is in use is - * line->tty->count > 1, also under the spinlock. - * - * line->count serves to decide whether the device should be enabled or - * disabled on the host. If it's equal to 0, then we are doing the - * first open or last close. Otherwise, open and close just return. - */ - -int line_open(struct line *lines, struct tty_struct *tty) +static int line_activate(struct tty_port *port, struct tty_struct *tty) { - struct line *line = &lines[tty->index]; - int err = -ENODEV; - - mutex_lock(&line->count_lock); - if (!line->valid) - goto out_unlock; - - err = 0; - if (line->count++) - goto out_unlock; - - BUG_ON(tty->driver_data); - tty->driver_data = line; - line->tty = tty; + int ret; + struct line *line = tty->driver_data; - err = enable_chan(line); - if (err) /* line_close() will be called by our caller */ - goto out_unlock; + ret = enable_chan(line); + if (ret) + return ret; if (!line->sigio) { chan_enable_winch(line->chan_out, tty); @@ -421,44 +311,60 @@ int line_open(struct line *lines, struct tty_struct *tty) } chan_window_size(line, &tty->winsize.ws_row, - &tty->winsize.ws_col); -out_unlock: - mutex_unlock(&line->count_lock); - return err; + &tty->winsize.ws_col); + + return 0; } -static void unregister_winch(struct tty_struct *tty); +static const struct tty_port_operations line_port_ops = { + .activate = line_activate, +}; -void line_close(struct tty_struct *tty, struct file * filp) +int line_open(struct tty_struct *tty, struct file *filp) { struct line *line = tty->driver_data; - /* - * If line_open fails (and tty->driver_data is never set), - * tty_open will call line_close. So just return in this case. - */ - if (line == NULL) - return; + return tty_port_open(&line->port, tty, filp); +} - /* We ignore the error anyway! */ - flush_buffer(line); +int line_install(struct tty_driver *driver, struct tty_struct *tty, + struct line *line) +{ + int ret; - mutex_lock(&line->count_lock); - BUG_ON(!line->valid); + ret = tty_standard_install(driver, tty); + if (ret) + return ret; - if (--line->count) - goto out_unlock; + tty->driver_data = line; - line->tty = NULL; - tty->driver_data = NULL; + return 0; +} + +static void unregister_winch(struct tty_struct *tty); + +void line_cleanup(struct tty_struct *tty) +{ + struct line *line = tty->driver_data; if (line->sigio) { unregister_winch(tty); line->sigio = 0; } +} + +void line_close(struct tty_struct *tty, struct file * filp) +{ + struct line *line = tty->driver_data; -out_unlock: - mutex_unlock(&line->count_lock); + tty_port_close(&line->port, tty, filp); +} + +void line_hangup(struct tty_struct *tty) +{ + struct line *line = tty->driver_data; + + tty_port_hangup(&line->port); } void close_lines(struct line *lines, int nlines) @@ -476,9 +382,7 @@ int setup_one_line(struct line *lines, int n, char *init, struct tty_driver *driver = line->driver->driver; int err = -EINVAL; - mutex_lock(&line->count_lock); - - if (line->count) { + if (line->port.count) { *error_out = "Device is already open"; goto out; } @@ -519,7 +423,6 @@ int setup_one_line(struct line *lines, int n, char *init, } } out: - mutex_unlock(&line->count_lock); return err; } @@ -607,13 +510,17 @@ int line_get_config(char *name, struct line *lines, unsigned int num, char *str, line = &lines[dev]; - mutex_lock(&line->count_lock); if (!line->valid) CONFIG_CHUNK(str, size, n, "none", 1); - else if (line->tty == NULL) - CONFIG_CHUNK(str, size, n, line->init_str, 1); - else n = chan_config_string(line, str, size, error_out); - mutex_unlock(&line->count_lock); + else { + struct tty_struct *tty = tty_port_tty_get(&line->port); + if (tty == NULL) { + CONFIG_CHUNK(str, size, n, line->init_str, 1); + } else { + n = chan_config_string(line, str, size, error_out); + tty_kref_put(tty); + } + } return n; } @@ -663,8 +570,9 @@ int register_lines(struct line_driver *line_driver, driver->init_termios = tty_std_termios; for (i = 0; i < nlines; i++) { + tty_port_init(&lines[i].port); + lines[i].port.ops = &line_port_ops; spin_lock_init(&lines[i].lock); - mutex_init(&lines[i].count_lock); lines[i].driver = line_driver; INIT_LIST_HEAD(&lines[i].chan_list); } @@ -779,8 +687,7 @@ void register_winch_irq(int fd, int tty_fd, int pid, struct tty_struct *tty, .stack = stack }); if (um_request_irq(WINCH_IRQ, fd, IRQ_READ, winch_interrupt, - IRQF_SHARED | IRQF_SAMPLE_RANDOM, - "winch", winch) < 0) { + IRQF_SHARED, "winch", winch) < 0) { printk(KERN_ERR "register_winch_irq - failed to register " "IRQ\n"); goto out_free; diff --git a/arch/um/drivers/line.h b/arch/um/drivers/line.h index 0a18347..bae9561 100644 --- a/arch/um/drivers/line.h +++ b/arch/um/drivers/line.h @@ -32,9 +32,7 @@ struct line_driver { }; struct line { - struct tty_struct *tty; - struct mutex count_lock; - unsigned long count; + struct tty_port port; int valid; char *init_str; @@ -59,7 +57,11 @@ struct line { }; extern void line_close(struct tty_struct *tty, struct file * filp); -extern int line_open(struct line *lines, struct tty_struct *tty); +extern int line_open(struct tty_struct *tty, struct file *filp); +extern int line_install(struct tty_driver *driver, struct tty_struct *tty, + struct line *line); +extern void line_cleanup(struct tty_struct *tty); +extern void line_hangup(struct tty_struct *tty); extern int line_setup(char **conf, unsigned nlines, char **def, char *init, char *name); extern int line_write(struct tty_struct *tty, const unsigned char *buf, @@ -70,8 +72,6 @@ extern int line_chars_in_buffer(struct tty_struct *tty); extern void line_flush_buffer(struct tty_struct *tty); extern void line_flush_chars(struct tty_struct *tty); extern int line_write_room(struct tty_struct *tty); -extern int line_ioctl(struct tty_struct *tty, unsigned int cmd, - unsigned long arg); extern void line_throttle(struct tty_struct *tty); extern void line_unthrottle(struct tty_struct *tty); diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 43b39d6..664a60e 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -774,8 +774,7 @@ static int __init mconsole_init(void) register_reboot_notifier(&reboot_notifier); err = um_request_irq(MCONSOLE_IRQ, sock, IRQ_READ, mconsole_interrupt, - IRQF_SHARED | IRQF_SAMPLE_RANDOM, - "mconsole", (void *)sock); + IRQF_SHARED, "mconsole", (void *)sock); if (err) { printk(KERN_ERR "Failed to get IRQ for management console\n"); goto out; diff --git a/arch/um/drivers/port_kern.c b/arch/um/drivers/port_kern.c index 11866ff..1d83d50 100644 --- a/arch/um/drivers/port_kern.c +++ b/arch/um/drivers/port_kern.c @@ -100,8 +100,7 @@ static int port_accept(struct port_list *port) .port = port }); if (um_request_irq(TELNETD_IRQ, socket[0], IRQ_READ, pipe_interrupt, - IRQF_SHARED | IRQF_SAMPLE_RANDOM, - "telnetd", conn)) { + IRQF_SHARED, "telnetd", conn)) { printk(KERN_ERR "port_accept : failed to get IRQ for " "telnetd\n"); goto out_free; @@ -184,8 +183,7 @@ void *port_data(int port_num) } if (um_request_irq(ACCEPT_IRQ, fd, IRQ_READ, port_interrupt, - IRQF_SHARED | IRQF_SAMPLE_RANDOM, - "port", port)) { + IRQF_SHARED, "port", port)) { printk(KERN_ERR "Failed to get IRQ for port %d\n", port_num); goto out_close; } diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c index b25296e..e32c6aa 100644 --- a/arch/um/drivers/random.c +++ b/arch/um/drivers/random.c @@ -131,8 +131,7 @@ static int __init rng_init (void) random_fd = err; err = um_request_irq(RANDOM_IRQ, random_fd, IRQ_READ, random_interrupt, - IRQF_SAMPLE_RANDOM, "random", - NULL); + 0, "random", NULL); if (err) goto err_out_cleanup_hw; diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c index e09801a..7e86f00 100644 --- a/arch/um/drivers/ssl.c +++ b/arch/um/drivers/ssl.c @@ -87,40 +87,13 @@ static int ssl_remove(int n, char **error_out) error_out); } -static int ssl_open(struct tty_struct *tty, struct file *filp) -{ - int err = line_open(serial_lines, tty); - - if (err) - printk(KERN_ERR "Failed to open serial line %d, err = %d\n", - tty->index, err); - - return err; -} - -#if 0 -static void ssl_flush_buffer(struct tty_struct *tty) -{ - return; -} - -static void ssl_stop(struct tty_struct *tty) -{ - printk(KERN_ERR "Someone should implement ssl_stop\n"); -} - -static void ssl_start(struct tty_struct *tty) -{ - printk(KERN_ERR "Someone should implement ssl_start\n"); -} - -void ssl_hangup(struct tty_struct *tty) +static int ssl_install(struct tty_driver *driver, struct tty_struct *tty) { + return line_install(driver, tty, &serial_lines[tty->index]); } -#endif static const struct tty_operations ssl_ops = { - .open = ssl_open, + .open = line_open, .close = line_close, .write = line_write, .put_char = line_put_char, @@ -129,14 +102,11 @@ static const struct tty_operations ssl_ops = { .flush_buffer = line_flush_buffer, .flush_chars = line_flush_chars, .set_termios = line_set_termios, - .ioctl = line_ioctl, .throttle = line_throttle, .unthrottle = line_unthrottle, -#if 0 - .stop = ssl_stop, - .start = ssl_start, - .hangup = ssl_hangup, -#endif + .install = ssl_install, + .cleanup = line_cleanup, + .hangup = line_hangup, }; /* Changed by ssl_init and referenced by ssl_exit, which are both serialized diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c index 7663541..929b99a 100644 --- a/arch/um/drivers/stdio_console.c +++ b/arch/um/drivers/stdio_console.c @@ -89,21 +89,17 @@ static int con_remove(int n, char **error_out) return line_remove(vts, ARRAY_SIZE(vts), n, error_out); } -static int con_open(struct tty_struct *tty, struct file *filp) -{ - int err = line_open(vts, tty); - if (err) - printk(KERN_ERR "Failed to open console %d, err = %d\n", - tty->index, err); - - return err; -} - /* Set in an initcall, checked in an exitcall */ static int con_init_done = 0; +static int con_install(struct tty_driver *driver, struct tty_struct *tty) +{ + return line_install(driver, tty, &vts[tty->index]); +} + static const struct tty_operations console_ops = { - .open = con_open, + .open = line_open, + .install = con_install, .close = line_close, .write = line_write, .put_char = line_put_char, @@ -112,9 +108,10 @@ static const struct tty_operations console_ops = { .flush_buffer = line_flush_buffer, .flush_chars = line_flush_chars, .set_termios = line_set_termios, - .ioctl = line_ioctl, .throttle = line_throttle, .unthrottle = line_unthrottle, + .cleanup = line_cleanup, + .hangup = line_hangup, }; static void uml_console_write(struct console *console, const char *string, diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 20505ca..0643e5b 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -514,7 +514,7 @@ static inline int ubd_file_size(struct ubd *ubd_dev, __u64 *size_out) goto out; } - fd = os_open_file(ubd_dev->file, global_openflags, 0); + fd = os_open_file(ubd_dev->file, of_read(OPENFLAGS()), 0); if (fd < 0) return fd; diff --git a/arch/um/drivers/xterm_kern.c b/arch/um/drivers/xterm_kern.c index b68bbe2..e3031e6 100644 --- a/arch/um/drivers/xterm_kern.c +++ b/arch/um/drivers/xterm_kern.c @@ -50,8 +50,7 @@ int xterm_fd(int socket, int *pid_out) init_completion(&data->ready); err = um_request_irq(XTERM_IRQ, socket, IRQ_READ, xterm_interrupt, - IRQF_SHARED | IRQF_SAMPLE_RANDOM, - "xterm", data); + IRQF_SHARED, "xterm", data); if (err) { printk(KERN_ERR "xterm_fd : failed to get IRQ for xterm, " "err = %d\n", err); diff --git a/arch/um/include/asm/ptrace-generic.h b/arch/um/include/asm/ptrace-generic.h index e786a6a..442f1d0 100644 --- a/arch/um/include/asm/ptrace-generic.h +++ b/arch/um/include/asm/ptrace-generic.h @@ -37,6 +37,8 @@ extern int putreg(struct task_struct *child, int regno, unsigned long value); extern int arch_copy_tls(struct task_struct *new); extern void clear_flushed_tls(struct task_struct *task); +extern void syscall_trace_enter(struct pt_regs *regs); +extern void syscall_trace_leave(struct pt_regs *regs); #endif diff --git a/arch/um/include/shared/as-layout.h b/arch/um/include/shared/as-layout.h index 896e166..86daa54 100644 --- a/arch/um/include/shared/as-layout.h +++ b/arch/um/include/shared/as-layout.h @@ -60,7 +60,8 @@ extern unsigned long host_task_size; extern int linux_main(int argc, char **argv); -extern void (*sig_info[])(int, struct uml_pt_regs *); +struct siginfo; +extern void (*sig_info[])(int, struct siginfo *si, struct uml_pt_regs *); #endif diff --git a/arch/um/include/shared/irq_user.h b/arch/um/include/shared/irq_user.h index c6c784d..2b6d703 100644 --- a/arch/um/include/shared/irq_user.h +++ b/arch/um/include/shared/irq_user.h @@ -20,7 +20,8 @@ struct irq_fd { enum { IRQ_READ, IRQ_WRITE }; -extern void sigio_handler(int sig, struct uml_pt_regs *regs); +struct siginfo; +extern void sigio_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs); extern void free_irq_by_fd(int fd); extern void reactivate_fd(int fd, int irqnum); extern void deactivate_fd(int fd, int irqnum); diff --git a/arch/um/include/shared/kern_util.h b/arch/um/include/shared/kern_util.h index 00965d0..af6b6dc 100644 --- a/arch/um/include/shared/kern_util.h +++ b/arch/um/include/shared/kern_util.h @@ -9,6 +9,8 @@ #include "sysdep/ptrace.h" #include "sysdep/faultinfo.h" +struct siginfo; + extern int uml_exitcode; extern int ncpus; @@ -22,7 +24,7 @@ extern void free_stack(unsigned long stack, int order); extern int do_signal(void); extern void interrupt_end(void); -extern void relay_signal(int sig, struct uml_pt_regs *regs); +extern void relay_signal(int sig, struct siginfo *si, struct uml_pt_regs *regs); extern unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, struct uml_pt_regs *regs); @@ -33,9 +35,8 @@ extern unsigned int do_IRQ(int irq, struct uml_pt_regs *regs); extern int smp_sigio_handler(void); extern void initial_thread_cb(void (*proc)(void *), void *arg); extern int is_syscall(unsigned long addr); -extern void timer_handler(int sig, struct uml_pt_regs *regs); -extern void timer_handler(int sig, struct uml_pt_regs *regs); +extern void timer_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs); extern int start_uml(void); extern void paging_init(void); @@ -59,9 +60,9 @@ extern unsigned long from_irq_stack(int nested); extern void syscall_trace(struct uml_pt_regs *regs, int entryexit); extern int singlestepping(void *t); -extern void segv_handler(int sig, struct uml_pt_regs *regs); -extern void bus_handler(int sig, struct uml_pt_regs *regs); -extern void winch(int sig, struct uml_pt_regs *regs); +extern void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs); +extern void bus_handler(int sig, struct siginfo *si, struct uml_pt_regs *regs); +extern void winch(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs); extern void fatal_sigsegv(void) __attribute__ ((noreturn)); diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index 00506c3..9883026 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -30,7 +30,7 @@ static struct irq_fd **last_irq_ptr = &active_fds; extern void free_irqs(void); -void sigio_handler(int sig, struct uml_pt_regs *regs) +void sigio_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs) { struct irq_fd *irq_fd; int n; diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index ccb9a9d..57fc702 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -151,12 +151,10 @@ void new_thread_handler(void) * 0 if it just exits */ n = run_kernel_thread(fn, arg, ¤t->thread.exec_buf); - if (n == 1) { - /* Handle any immediate reschedules or signals */ - interrupt_end(); + if (n == 1) userspace(¤t->thread.regs.regs); - } - else do_exit(0); + else + do_exit(0); } /* Called magically, see new_thread_handler above */ @@ -175,9 +173,6 @@ void fork_handler(void) current->thread.prev_sched = NULL; - /* Handle any immediate reschedules or signals */ - interrupt_end(); - userspace(¤t->thread.regs.regs); } @@ -193,7 +188,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, if (current->thread.forking) { memcpy(&p->thread.regs.regs, ®s->regs, sizeof(p->thread.regs.regs)); - UPT_SET_SYSCALL_RETURN(&p->thread.regs.regs, 0); + PT_REGS_SET_SYSCALL_RETURN(&p->thread.regs, 0); if (sp != 0) REGS_SP(p->thread.regs.regs.gp) = sp; diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c index 06b1903..694d551 100644 --- a/arch/um/kernel/ptrace.c +++ b/arch/um/kernel/ptrace.c @@ -3,11 +3,12 @@ * Licensed under the GPL */ -#include "linux/audit.h" -#include "linux/ptrace.h" -#include "linux/sched.h" -#include "asm/uaccess.h" -#include "skas_ptrace.h" +#include +#include +#include +#include +#include +#include @@ -162,48 +163,36 @@ static void send_sigtrap(struct task_struct *tsk, struct uml_pt_regs *regs, * XXX Check PT_DTRACE vs TIF_SINGLESTEP for singlestepping check and * PT_PTRACED vs TIF_SYSCALL_TRACE for syscall tracing check */ -void syscall_trace(struct uml_pt_regs *regs, int entryexit) +void syscall_trace_enter(struct pt_regs *regs) { - int is_singlestep = (current->ptrace & PT_DTRACE) && entryexit; - int tracesysgood; - - if (!entryexit) - audit_syscall_entry(HOST_AUDIT_ARCH, - UPT_SYSCALL_NR(regs), - UPT_SYSCALL_ARG1(regs), - UPT_SYSCALL_ARG2(regs), - UPT_SYSCALL_ARG3(regs), - UPT_SYSCALL_ARG4(regs)); - else - audit_syscall_exit(regs); - - /* Fake a debug trap */ - if (is_singlestep) - send_sigtrap(current, regs, 0); + audit_syscall_entry(HOST_AUDIT_ARCH, + UPT_SYSCALL_NR(®s->regs), + UPT_SYSCALL_ARG1(®s->regs), + UPT_SYSCALL_ARG2(®s->regs), + UPT_SYSCALL_ARG3(®s->regs), + UPT_SYSCALL_ARG4(®s->regs)); if (!test_thread_flag(TIF_SYSCALL_TRACE)) return; - if (!(current->ptrace & PT_PTRACED)) - return; + tracehook_report_syscall_entry(regs); +} - /* - * the 0x80 provides a way for the tracing parent to distinguish - * between a syscall stop and SIGTRAP delivery - */ - tracesysgood = (current->ptrace & PT_TRACESYSGOOD); - ptrace_notify(SIGTRAP | (tracesysgood ? 0x80 : 0)); +void syscall_trace_leave(struct pt_regs *regs) +{ + int ptraced = current->ptrace; - if (entryexit) /* force do_signal() --> is_syscall() */ - set_thread_flag(TIF_SIGPENDING); + audit_syscall_exit(regs); - /* - * this isn't the same as continuing with a signal, but it will do - * for normal use. strace only continues with a signal if the - * stopping signal is not SIGTRAP. -brl - */ - if (current->exit_code) { - send_sig(current->exit_code, current, 1); - current->exit_code = 0; - } + /* Fake a debug trap */ + if (ptraced & PT_DTRACE) + send_sigtrap(current, ®s->regs, 0); + + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + return; + + tracehook_report_syscall_exit(regs, 0); + /* force do_signal() --> is_syscall() */ + if (ptraced & PT_PTRACED) + set_thread_flag(TIF_SIGPENDING); } diff --git a/arch/um/kernel/sigio.c b/arch/um/kernel/sigio.c index 2a16392..c882111 100644 --- a/arch/um/kernel/sigio.c +++ b/arch/um/kernel/sigio.c @@ -25,8 +25,7 @@ int write_sigio_irq(int fd) int err; err = um_request_irq(SIGIO_WRITE_IRQ, fd, IRQ_READ, sigio_interrupt, - IRQF_SAMPLE_RANDOM, "write sigio", - NULL); + 0, "write sigio", NULL); if (err) { printk(KERN_ERR "write_sigio_irq : um_request_irq failed, " "err = %d\n", err); diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c index 05fbeb4..86368a0 100644 --- a/arch/um/kernel/skas/syscall.c +++ b/arch/um/kernel/skas/syscall.c @@ -18,7 +18,7 @@ void handle_syscall(struct uml_pt_regs *r) long result; int syscall; - syscall_trace(r, 0); + syscall_trace_enter(regs); /* * This should go in the declaration of syscall, but when I do that, @@ -34,7 +34,7 @@ void handle_syscall(struct uml_pt_regs *r) result = -ENOSYS; else result = EXECUTE_SYSCALL(syscall, regs); - UPT_SET_SYSCALL_RETURN(r, result); + PT_REGS_SET_SYSCALL_RETURN(regs, result); - syscall_trace(r, 1); + syscall_trace_leave(regs); } diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c index d1a23fb..5f76d4b 100644 --- a/arch/um/kernel/time.c +++ b/arch/um/kernel/time.c @@ -13,7 +13,7 @@ #include "kern_util.h" #include "os.h" -void timer_handler(int sig, struct uml_pt_regs *regs) +void timer_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs) { unsigned long flags; diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c index 3be6076..0353b98 100644 --- a/arch/um/kernel/trap.c +++ b/arch/um/kernel/trap.c @@ -172,7 +172,7 @@ void fatal_sigsegv(void) os_dump_core(); } -void segv_handler(int sig, struct uml_pt_regs *regs) +void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs) { struct faultinfo * fi = UPT_FAULTINFO(regs); @@ -258,8 +258,11 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user, return 0; } -void relay_signal(int sig, struct uml_pt_regs *regs) +void relay_signal(int sig, struct siginfo *si, struct uml_pt_regs *regs) { + struct faultinfo *fi; + struct siginfo clean_si; + if (!UPT_IS_USER(regs)) { if (sig == SIGBUS) printk(KERN_ERR "Bus error - the host /dev/shm or /tmp " @@ -269,18 +272,40 @@ void relay_signal(int sig, struct uml_pt_regs *regs) arch_examine_signal(sig, regs); - current->thread.arch.faultinfo = *UPT_FAULTINFO(regs); - force_sig(sig, current); + memset(&clean_si, 0, sizeof(clean_si)); + clean_si.si_signo = si->si_signo; + clean_si.si_errno = si->si_errno; + clean_si.si_code = si->si_code; + switch (sig) { + case SIGILL: + case SIGFPE: + case SIGSEGV: + case SIGBUS: + case SIGTRAP: + fi = UPT_FAULTINFO(regs); + clean_si.si_addr = (void __user *) FAULT_ADDRESS(*fi); + current->thread.arch.faultinfo = *fi; +#ifdef __ARCH_SI_TRAPNO + clean_si.si_trapno = si->si_trapno; +#endif + break; + default: + printk(KERN_ERR "Attempted to relay unknown signal %d (si_code = %d)\n", + sig, si->si_code); + } + + force_sig_info(sig, &clean_si, current); } -void bus_handler(int sig, struct uml_pt_regs *regs) +void bus_handler(int sig, struct siginfo *si, struct uml_pt_regs *regs) { if (current->thread.fault_catcher != NULL) UML_LONGJMP(current->thread.fault_catcher, 1); - else relay_signal(sig, regs); + else + relay_signal(sig, si, regs); } -void winch(int sig, struct uml_pt_regs *regs) +void winch(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs) { do_IRQ(WINCH_IRQ, regs); } diff --git a/arch/um/os-Linux/internal.h b/arch/um/os-Linux/internal.h index 2c3c3ec..0dc2c9f 100644 --- a/arch/um/os-Linux/internal.h +++ b/arch/um/os-Linux/internal.h @@ -1 +1 @@ -void alarm_handler(int, mcontext_t *); +void alarm_handler(int sig, struct siginfo *unused_si, mcontext_t *mc); diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index 2d22f1f..6366ce9 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -13,8 +13,9 @@ #include "kern_util.h" #include "os.h" #include "sysdep/mcontext.h" +#include "internal.h" -void (*sig_info[NSIG])(int, struct uml_pt_regs *) = { +void (*sig_info[NSIG])(int, siginfo_t *, struct uml_pt_regs *) = { [SIGTRAP] = relay_signal, [SIGFPE] = relay_signal, [SIGILL] = relay_signal, @@ -24,7 +25,7 @@ void (*sig_info[NSIG])(int, struct uml_pt_regs *) = { [SIGIO] = sigio_handler, [SIGVTALRM] = timer_handler }; -static void sig_handler_common(int sig, mcontext_t *mc) +static void sig_handler_common(int sig, siginfo_t *si, mcontext_t *mc) { struct uml_pt_regs r; int save_errno = errno; @@ -40,7 +41,7 @@ static void sig_handler_common(int sig, mcontext_t *mc) if ((sig != SIGIO) && (sig != SIGWINCH) && (sig != SIGVTALRM)) unblock_signals(); - (*sig_info[sig])(sig, &r); + (*sig_info[sig])(sig, si, &r); errno = save_errno; } @@ -60,7 +61,7 @@ static void sig_handler_common(int sig, mcontext_t *mc) static int signals_enabled; static unsigned int signals_pending; -void sig_handler(int sig, mcontext_t *mc) +void sig_handler(int sig, siginfo_t *si, mcontext_t *mc) { int enabled; @@ -72,7 +73,7 @@ void sig_handler(int sig, mcontext_t *mc) block_signals(); - sig_handler_common(sig, mc); + sig_handler_common(sig, si, mc); set_signals(enabled); } @@ -85,10 +86,10 @@ static void real_alarm_handler(mcontext_t *mc) get_regs_from_mc(®s, mc); regs.is_user = 0; unblock_signals(); - timer_handler(SIGVTALRM, ®s); + timer_handler(SIGVTALRM, NULL, ®s); } -void alarm_handler(int sig, mcontext_t *mc) +void alarm_handler(int sig, struct siginfo *unused_si, mcontext_t *mc) { int enabled; @@ -119,7 +120,7 @@ void set_sigstack(void *sig_stack, int size) panic("enabling signal stack failed, errno = %d\n", errno); } -static void (*handlers[_NSIG])(int sig, mcontext_t *mc) = { +static void (*handlers[_NSIG])(int sig, siginfo_t *si, mcontext_t *mc) = { [SIGSEGV] = sig_handler, [SIGBUS] = sig_handler, [SIGILL] = sig_handler, @@ -132,7 +133,7 @@ static void (*handlers[_NSIG])(int sig, mcontext_t *mc) = { }; -static void hard_handler(int sig, siginfo_t *info, void *p) +static void hard_handler(int sig, siginfo_t *si, void *p) { struct ucontext *uc = p; mcontext_t *mc = &uc->uc_mcontext; @@ -161,7 +162,7 @@ static void hard_handler(int sig, siginfo_t *info, void *p) while ((sig = ffs(pending)) != 0){ sig--; pending &= ~(1 << sig); - (*handlers[sig])(sig, mc); + (*handlers[sig])(sig, si, mc); } /* @@ -273,9 +274,12 @@ void unblock_signals(void) * Deal with SIGIO first because the alarm handler might * schedule, leaving the pending SIGIO stranded until we come * back here. + * + * SIGIO's handler doesn't use siginfo or mcontext, + * so they can be NULL. */ if (save_pending & SIGIO_MASK) - sig_handler_common(SIGIO, NULL); + sig_handler_common(SIGIO, NULL, NULL); if (save_pending & SIGVTALRM_MASK) real_alarm_handler(NULL); diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index cd65727..d93bb40 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -346,6 +346,10 @@ void userspace(struct uml_pt_regs *regs) int err, status, op, pid = userspace_pid[0]; /* To prevent races if using_sysemu changes under us.*/ int local_using_sysemu; + siginfo_t si; + + /* Handle any immediate reschedules or signals */ + interrupt_end(); if (getitimer(ITIMER_VIRTUAL, &timer)) printk(UM_KERN_ERR "Failed to get itimer, errno = %d\n", errno); @@ -404,13 +408,17 @@ void userspace(struct uml_pt_regs *regs) if (WIFSTOPPED(status)) { int sig = WSTOPSIG(status); + + ptrace(PTRACE_GETSIGINFO, pid, 0, &si); + switch (sig) { case SIGSEGV: if (PTRACE_FULL_FAULTINFO || !ptrace_faultinfo) { get_skas_faultinfo(pid, ®s->faultinfo); - (*sig_info[SIGSEGV])(SIGSEGV, regs); + (*sig_info[SIGSEGV])(SIGSEGV, &si, + regs); } else handle_segv(pid, regs); break; @@ -418,14 +426,14 @@ void userspace(struct uml_pt_regs *regs) handle_trap(pid, regs, local_using_sysemu); break; case SIGTRAP: - relay_signal(SIGTRAP, regs); + relay_signal(SIGTRAP, &si, regs); break; case SIGVTALRM: now = os_nsecs(); if (now < nsecs) break; block_signals(); - (*sig_info[sig])(sig, regs); + (*sig_info[sig])(sig, &si, regs); unblock_signals(); nsecs = timer.it_value.tv_sec * UM_NSEC_PER_SEC + @@ -439,7 +447,7 @@ void userspace(struct uml_pt_regs *regs) case SIGFPE: case SIGWINCH: block_signals(); - (*sig_info[sig])(sig, regs); + (*sig_info[sig])(sig, &si, regs); unblock_signals(); break; default: diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c index 910499d..f602385 100644 --- a/arch/um/os-Linux/time.c +++ b/arch/um/os-Linux/time.c @@ -87,7 +87,7 @@ static int after_sleep_interval(struct timespec *ts) static void deliver_alarm(void) { - alarm_handler(SIGVTALRM, NULL); + alarm_handler(SIGVTALRM, NULL, NULL); } static unsigned long long sleep_time(unsigned long long nsecs) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c70684f..ba2657c 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -70,6 +70,7 @@ config X86 select HAVE_ARCH_JUMP_LABEL select HAVE_TEXT_POKE_SMP select HAVE_GENERIC_HARDIRQS + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select SPARSE_IRQ select GENERIC_FIND_FIRST_BIT select GENERIC_IRQ_PROBE @@ -84,6 +85,7 @@ config X86 select GENERIC_IOMAP select DCACHE_WORD_ACCESS select GENERIC_SMP_IDLE_THREAD + select ARCH_WANT_IPC_PARSE_VERSION if X86_32 select HAVE_ARCH_SECCOMP_FILTER select BUILDTIME_EXTABLE_SORT select GENERIC_CMOS_UPDATE diff --git a/arch/x86/include/asm/olpc.h b/arch/x86/include/asm/olpc.h index 87bdbca..72f9adf6 100644 --- a/arch/x86/include/asm/olpc.h +++ b/arch/x86/include/asm/olpc.h @@ -100,25 +100,6 @@ extern void olpc_xo1_pm_wakeup_clear(u16 value); extern int pci_olpc_init(void); -/* EC related functions */ - -extern int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen, - unsigned char *outbuf, size_t outlen); - -/* EC commands */ - -#define EC_FIRMWARE_REV 0x08 -#define EC_WRITE_SCI_MASK 0x1b -#define EC_WAKE_UP_WLAN 0x24 -#define EC_WLAN_LEAVE_RESET 0x25 -#define EC_READ_EB_MODE 0x2a -#define EC_SET_SCI_INHIBIT 0x32 -#define EC_SET_SCI_INHIBIT_RELEASE 0x34 -#define EC_WLAN_ENTER_RESET 0x35 -#define EC_WRITE_EXT_SCI_MASK 0x38 -#define EC_SCI_QUERY 0x84 -#define EC_EXT_SCI_QUERY 0x85 - /* SCI source values */ #define EC_SCI_SRC_EMPTY 0x00 diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index c78f14a..dab3935 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -234,7 +234,7 @@ extern struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr); extern void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap); extern void perf_check_microcode(void); #else -static inline perf_guest_switch_msr *perf_guest_get_msrs(int *nr) +static inline struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr) { *nr = 0; return NULL; diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h index 4437001..0d9776e 100644 --- a/arch/x86/include/asm/unistd.h +++ b/arch/x86/include/asm/unistd.h @@ -15,7 +15,6 @@ # ifdef CONFIG_X86_32 # include -# define __ARCH_WANT_IPC_PARSE_VERSION # define __ARCH_WANT_STAT64 # define __ARCH_WANT_SYS_IPC # define __ARCH_WANT_SYS_OLD_MMAP diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h index a15df4b..821d53b 100644 --- a/arch/x86/kernel/cpu/perf_event.h +++ b/arch/x86/kernel/cpu/perf_event.h @@ -374,7 +374,7 @@ struct x86_pmu { /* * Intel DebugStore bits */ - int bts :1, + unsigned int bts :1, bts_active :1, pebs :1, pebs_active :1, diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index 7a8b9d0..3823669 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -138,6 +138,84 @@ static u64 intel_pmu_event_map(int hw_event) return intel_perfmon_event_map[hw_event]; } +#define SNB_DMND_DATA_RD (1ULL << 0) +#define SNB_DMND_RFO (1ULL << 1) +#define SNB_DMND_IFETCH (1ULL << 2) +#define SNB_DMND_WB (1ULL << 3) +#define SNB_PF_DATA_RD (1ULL << 4) +#define SNB_PF_RFO (1ULL << 5) +#define SNB_PF_IFETCH (1ULL << 6) +#define SNB_LLC_DATA_RD (1ULL << 7) +#define SNB_LLC_RFO (1ULL << 8) +#define SNB_LLC_IFETCH (1ULL << 9) +#define SNB_BUS_LOCKS (1ULL << 10) +#define SNB_STRM_ST (1ULL << 11) +#define SNB_OTHER (1ULL << 15) +#define SNB_RESP_ANY (1ULL << 16) +#define SNB_NO_SUPP (1ULL << 17) +#define SNB_LLC_HITM (1ULL << 18) +#define SNB_LLC_HITE (1ULL << 19) +#define SNB_LLC_HITS (1ULL << 20) +#define SNB_LLC_HITF (1ULL << 21) +#define SNB_LOCAL (1ULL << 22) +#define SNB_REMOTE (0xffULL << 23) +#define SNB_SNP_NONE (1ULL << 31) +#define SNB_SNP_NOT_NEEDED (1ULL << 32) +#define SNB_SNP_MISS (1ULL << 33) +#define SNB_NO_FWD (1ULL << 34) +#define SNB_SNP_FWD (1ULL << 35) +#define SNB_HITM (1ULL << 36) +#define SNB_NON_DRAM (1ULL << 37) + +#define SNB_DMND_READ (SNB_DMND_DATA_RD|SNB_LLC_DATA_RD) +#define SNB_DMND_WRITE (SNB_DMND_RFO|SNB_LLC_RFO) +#define SNB_DMND_PREFETCH (SNB_PF_DATA_RD|SNB_PF_RFO) + +#define SNB_SNP_ANY (SNB_SNP_NONE|SNB_SNP_NOT_NEEDED| \ + SNB_SNP_MISS|SNB_NO_FWD|SNB_SNP_FWD| \ + SNB_HITM) + +#define SNB_DRAM_ANY (SNB_LOCAL|SNB_REMOTE|SNB_SNP_ANY) +#define SNB_DRAM_REMOTE (SNB_REMOTE|SNB_SNP_ANY) + +#define SNB_L3_ACCESS SNB_RESP_ANY +#define SNB_L3_MISS (SNB_DRAM_ANY|SNB_NON_DRAM) + +static __initconst const u64 snb_hw_cache_extra_regs + [PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX] = +{ + [ C(LL ) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = SNB_DMND_READ|SNB_L3_ACCESS, + [ C(RESULT_MISS) ] = SNB_DMND_READ|SNB_L3_MISS, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = SNB_DMND_WRITE|SNB_L3_ACCESS, + [ C(RESULT_MISS) ] = SNB_DMND_WRITE|SNB_L3_MISS, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = SNB_DMND_PREFETCH|SNB_L3_ACCESS, + [ C(RESULT_MISS) ] = SNB_DMND_PREFETCH|SNB_L3_MISS, + }, + }, + [ C(NODE) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = SNB_DMND_READ|SNB_DRAM_ANY, + [ C(RESULT_MISS) ] = SNB_DMND_READ|SNB_DRAM_REMOTE, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = SNB_DMND_WRITE|SNB_DRAM_ANY, + [ C(RESULT_MISS) ] = SNB_DMND_WRITE|SNB_DRAM_REMOTE, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = SNB_DMND_PREFETCH|SNB_DRAM_ANY, + [ C(RESULT_MISS) ] = SNB_DMND_PREFETCH|SNB_DRAM_REMOTE, + }, + }, +}; + static __initconst const u64 snb_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] @@ -235,16 +313,16 @@ static __initconst const u64 snb_hw_cache_event_ids }, [ C(NODE) ] = { [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, + [ C(RESULT_ACCESS) ] = 0x01b7, + [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, + [ C(RESULT_ACCESS) ] = 0x01b7, + [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, + [ C(RESULT_ACCESS) ] = 0x01b7, + [ C(RESULT_MISS) ] = 0x01b7, }, }, @@ -1964,6 +2042,8 @@ __init int intel_pmu_init(void) case 58: /* IvyBridge */ memcpy(hw_cache_event_ids, snb_hw_cache_event_ids, sizeof(hw_cache_event_ids)); + memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs, + sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_snb(); diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c index 19faffc..7563fda 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c @@ -18,6 +18,7 @@ static struct event_constraint constraint_empty = EVENT_CONSTRAINT(0, 0, 0); DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7"); +DEFINE_UNCORE_FORMAT_ATTR(event_ext, event, "config:0-7,21"); DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15"); DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18"); DEFINE_UNCORE_FORMAT_ATTR(tid_en, tid_en, "config:19"); @@ -33,10 +34,81 @@ DEFINE_UNCORE_FORMAT_ATTR(filter_tid, filter_tid, "config1:0-4"); DEFINE_UNCORE_FORMAT_ATTR(filter_nid, filter_nid, "config1:10-17"); DEFINE_UNCORE_FORMAT_ATTR(filter_state, filter_state, "config1:18-22"); DEFINE_UNCORE_FORMAT_ATTR(filter_opc, filter_opc, "config1:23-31"); -DEFINE_UNCORE_FORMAT_ATTR(filter_brand0, filter_brand0, "config1:0-7"); -DEFINE_UNCORE_FORMAT_ATTR(filter_brand1, filter_brand1, "config1:8-15"); -DEFINE_UNCORE_FORMAT_ATTR(filter_brand2, filter_brand2, "config1:16-23"); -DEFINE_UNCORE_FORMAT_ATTR(filter_brand3, filter_brand3, "config1:24-31"); +DEFINE_UNCORE_FORMAT_ATTR(filter_band0, filter_band0, "config1:0-7"); +DEFINE_UNCORE_FORMAT_ATTR(filter_band1, filter_band1, "config1:8-15"); +DEFINE_UNCORE_FORMAT_ATTR(filter_band2, filter_band2, "config1:16-23"); +DEFINE_UNCORE_FORMAT_ATTR(filter_band3, filter_band3, "config1:24-31"); + +static u64 uncore_msr_read_counter(struct intel_uncore_box *box, struct perf_event *event) +{ + u64 count; + + rdmsrl(event->hw.event_base, count); + + return count; +} + +/* + * generic get constraint function for shared match/mask registers. + */ +static struct event_constraint * +uncore_get_constraint(struct intel_uncore_box *box, struct perf_event *event) +{ + struct intel_uncore_extra_reg *er; + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct hw_perf_event_extra *reg2 = &event->hw.branch_reg; + unsigned long flags; + bool ok = false; + + /* + * reg->alloc can be set due to existing state, so for fake box we + * need to ignore this, otherwise we might fail to allocate proper + * fake state for this extra reg constraint. + */ + if (reg1->idx == EXTRA_REG_NONE || + (!uncore_box_is_fake(box) && reg1->alloc)) + return NULL; + + er = &box->shared_regs[reg1->idx]; + raw_spin_lock_irqsave(&er->lock, flags); + if (!atomic_read(&er->ref) || + (er->config1 == reg1->config && er->config2 == reg2->config)) { + atomic_inc(&er->ref); + er->config1 = reg1->config; + er->config2 = reg2->config; + ok = true; + } + raw_spin_unlock_irqrestore(&er->lock, flags); + + if (ok) { + if (!uncore_box_is_fake(box)) + reg1->alloc = 1; + return NULL; + } + + return &constraint_empty; +} + +static void uncore_put_constraint(struct intel_uncore_box *box, struct perf_event *event) +{ + struct intel_uncore_extra_reg *er; + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + + /* + * Only put constraint if extra reg was actually allocated. Also + * takes care of event which do not use an extra shared reg. + * + * Also, if this is a fake box we shouldn't touch any event state + * (reg->alloc) and we don't care about leaving inconsistent box + * state either since it will be thrown out. + */ + if (uncore_box_is_fake(box) || !reg1->alloc) + return; + + er = &box->shared_regs[reg1->idx]; + atomic_dec(&er->ref); + reg1->alloc = 0; +} /* Sandy Bridge-EP uncore support */ static struct intel_uncore_type snbep_uncore_cbox; @@ -64,18 +136,15 @@ static void snbep_uncore_pci_enable_box(struct intel_uncore_box *box) pci_write_config_dword(pdev, box_ctl, config); } -static void snbep_uncore_pci_enable_event(struct intel_uncore_box *box, - struct perf_event *event) +static void snbep_uncore_pci_enable_event(struct intel_uncore_box *box, struct perf_event *event) { struct pci_dev *pdev = box->pci_dev; struct hw_perf_event *hwc = &event->hw; - pci_write_config_dword(pdev, hwc->config_base, hwc->config | - SNBEP_PMON_CTL_EN); + pci_write_config_dword(pdev, hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN); } -static void snbep_uncore_pci_disable_event(struct intel_uncore_box *box, - struct perf_event *event) +static void snbep_uncore_pci_disable_event(struct intel_uncore_box *box, struct perf_event *event) { struct pci_dev *pdev = box->pci_dev; struct hw_perf_event *hwc = &event->hw; @@ -83,8 +152,7 @@ static void snbep_uncore_pci_disable_event(struct intel_uncore_box *box, pci_write_config_dword(pdev, hwc->config_base, hwc->config); } -static u64 snbep_uncore_pci_read_counter(struct intel_uncore_box *box, - struct perf_event *event) +static u64 snbep_uncore_pci_read_counter(struct intel_uncore_box *box, struct perf_event *event) { struct pci_dev *pdev = box->pci_dev; struct hw_perf_event *hwc = &event->hw; @@ -92,14 +160,15 @@ static u64 snbep_uncore_pci_read_counter(struct intel_uncore_box *box, pci_read_config_dword(pdev, hwc->event_base, (u32 *)&count); pci_read_config_dword(pdev, hwc->event_base + 4, (u32 *)&count + 1); + return count; } static void snbep_uncore_pci_init_box(struct intel_uncore_box *box) { struct pci_dev *pdev = box->pci_dev; - pci_write_config_dword(pdev, SNBEP_PCI_PMON_BOX_CTL, - SNBEP_PMON_BOX_CTL_INT); + + pci_write_config_dword(pdev, SNBEP_PCI_PMON_BOX_CTL, SNBEP_PMON_BOX_CTL_INT); } static void snbep_uncore_msr_disable_box(struct intel_uncore_box *box) @@ -112,7 +181,6 @@ static void snbep_uncore_msr_disable_box(struct intel_uncore_box *box) rdmsrl(msr, config); config |= SNBEP_PMON_BOX_CTL_FRZ; wrmsrl(msr, config); - return; } } @@ -126,12 +194,10 @@ static void snbep_uncore_msr_enable_box(struct intel_uncore_box *box) rdmsrl(msr, config); config &= ~SNBEP_PMON_BOX_CTL_FRZ; wrmsrl(msr, config); - return; } } -static void snbep_uncore_msr_enable_event(struct intel_uncore_box *box, - struct perf_event *event) +static void snbep_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; struct hw_perf_event_extra *reg1 = &hwc->extra_reg; @@ -150,68 +216,15 @@ static void snbep_uncore_msr_disable_event(struct intel_uncore_box *box, wrmsrl(hwc->config_base, hwc->config); } -static u64 snbep_uncore_msr_read_counter(struct intel_uncore_box *box, - struct perf_event *event) -{ - struct hw_perf_event *hwc = &event->hw; - u64 count; - - rdmsrl(hwc->event_base, count); - return count; -} - static void snbep_uncore_msr_init_box(struct intel_uncore_box *box) { unsigned msr = uncore_msr_box_ctl(box); + if (msr) wrmsrl(msr, SNBEP_PMON_BOX_CTL_INT); } -static struct event_constraint * -snbep_uncore_get_constraint(struct intel_uncore_box *box, - struct perf_event *event) -{ - struct intel_uncore_extra_reg *er; - struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; - unsigned long flags; - bool ok = false; - - if (reg1->idx == EXTRA_REG_NONE || (box->phys_id >= 0 && reg1->alloc)) - return NULL; - - er = &box->shared_regs[reg1->idx]; - raw_spin_lock_irqsave(&er->lock, flags); - if (!atomic_read(&er->ref) || er->config1 == reg1->config) { - atomic_inc(&er->ref); - er->config1 = reg1->config; - ok = true; - } - raw_spin_unlock_irqrestore(&er->lock, flags); - - if (ok) { - if (box->phys_id >= 0) - reg1->alloc = 1; - return NULL; - } - return &constraint_empty; -} - -static void snbep_uncore_put_constraint(struct intel_uncore_box *box, - struct perf_event *event) -{ - struct intel_uncore_extra_reg *er; - struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; - - if (box->phys_id < 0 || !reg1->alloc) - return; - - er = &box->shared_regs[reg1->idx]; - atomic_dec(&er->ref); - reg1->alloc = 0; -} - -static int snbep_uncore_hw_config(struct intel_uncore_box *box, - struct perf_event *event) +static int snbep_uncore_hw_config(struct intel_uncore_box *box, struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; struct hw_perf_event_extra *reg1 = &hwc->extra_reg; @@ -221,14 +234,16 @@ static int snbep_uncore_hw_config(struct intel_uncore_box *box, SNBEP_CBO_MSR_OFFSET * box->pmu->pmu_idx; reg1->config = event->attr.config1 & SNBEP_CB0_MSR_PMON_BOX_FILTER_MASK; - } else if (box->pmu->type == &snbep_uncore_pcu) { - reg1->reg = SNBEP_PCU_MSR_PMON_BOX_FILTER; - reg1->config = event->attr.config1 & - SNBEP_PCU_MSR_PMON_BOX_FILTER_MASK; } else { - return 0; + if (box->pmu->type == &snbep_uncore_pcu) { + reg1->reg = SNBEP_PCU_MSR_PMON_BOX_FILTER; + reg1->config = event->attr.config1 & SNBEP_PCU_MSR_PMON_BOX_FILTER_MASK; + } else { + return 0; + } } reg1->idx = 0; + return 0; } @@ -272,10 +287,19 @@ static struct attribute *snbep_uncore_pcu_formats_attr[] = { &format_attr_thresh5.attr, &format_attr_occ_invert.attr, &format_attr_occ_edge.attr, - &format_attr_filter_brand0.attr, - &format_attr_filter_brand1.attr, - &format_attr_filter_brand2.attr, - &format_attr_filter_brand3.attr, + &format_attr_filter_band0.attr, + &format_attr_filter_band1.attr, + &format_attr_filter_band2.attr, + &format_attr_filter_band3.attr, + NULL, +}; + +static struct attribute *snbep_uncore_qpi_formats_attr[] = { + &format_attr_event_ext.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_inv.attr, + &format_attr_thresh8.attr, NULL, }; @@ -314,15 +338,20 @@ static struct attribute_group snbep_uncore_pcu_format_group = { .attrs = snbep_uncore_pcu_formats_attr, }; +static struct attribute_group snbep_uncore_qpi_format_group = { + .name = "format", + .attrs = snbep_uncore_qpi_formats_attr, +}; + static struct intel_uncore_ops snbep_uncore_msr_ops = { .init_box = snbep_uncore_msr_init_box, .disable_box = snbep_uncore_msr_disable_box, .enable_box = snbep_uncore_msr_enable_box, .disable_event = snbep_uncore_msr_disable_event, .enable_event = snbep_uncore_msr_enable_event, - .read_counter = snbep_uncore_msr_read_counter, - .get_constraint = snbep_uncore_get_constraint, - .put_constraint = snbep_uncore_put_constraint, + .read_counter = uncore_msr_read_counter, + .get_constraint = uncore_get_constraint, + .put_constraint = uncore_put_constraint, .hw_config = snbep_uncore_hw_config, }; @@ -485,8 +514,13 @@ static struct intel_uncore_type snbep_uncore_qpi = { .num_counters = 4, .num_boxes = 2, .perf_ctr_bits = 48, + .perf_ctr = SNBEP_PCI_PMON_CTR0, + .event_ctl = SNBEP_PCI_PMON_CTL0, + .event_mask = SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK, + .box_ctl = SNBEP_PCI_PMON_BOX_CTL, + .ops = &snbep_uncore_pci_ops, .event_descs = snbep_uncore_qpi_events, - SNBEP_UNCORE_PCI_COMMON_INIT(), + .format_group = &snbep_uncore_qpi_format_group, }; @@ -589,188 +623,1208 @@ static void snbep_pci2phy_map_init(void) /* get the Node ID mapping */ pci_read_config_dword(ubox_dev, 0x54, &config); /* - * every three bits in the Node ID mapping register maps - * to a particular node. + * every three bits in the Node ID mapping register maps + * to a particular node. + */ + for (i = 0; i < 8; i++) { + if (nodeid == ((config >> (3 * i)) & 0x7)) { + pcibus_to_physid[bus] = i; + break; + } + } + }; + return; +} +/* end of Sandy Bridge-EP uncore support */ + +/* Sandy Bridge uncore support */ +static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + + if (hwc->idx < UNCORE_PMC_IDX_FIXED) + wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN); + else + wrmsrl(hwc->config_base, SNB_UNC_CTL_EN); +} + +static void snb_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + wrmsrl(event->hw.config_base, 0); +} + +static void snb_uncore_msr_init_box(struct intel_uncore_box *box) +{ + if (box->pmu->pmu_idx == 0) { + wrmsrl(SNB_UNC_PERF_GLOBAL_CTL, + SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL); + } +} + +static struct attribute *snb_uncore_formats_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_inv.attr, + &format_attr_cmask5.attr, + NULL, +}; + +static struct attribute_group snb_uncore_format_group = { + .name = "format", + .attrs = snb_uncore_formats_attr, +}; + +static struct intel_uncore_ops snb_uncore_msr_ops = { + .init_box = snb_uncore_msr_init_box, + .disable_event = snb_uncore_msr_disable_event, + .enable_event = snb_uncore_msr_enable_event, + .read_counter = uncore_msr_read_counter, +}; + +static struct event_constraint snb_uncore_cbox_constraints[] = { + UNCORE_EVENT_CONSTRAINT(0x80, 0x1), + UNCORE_EVENT_CONSTRAINT(0x83, 0x1), + EVENT_CONSTRAINT_END +}; + +static struct intel_uncore_type snb_uncore_cbox = { + .name = "cbox", + .num_counters = 2, + .num_boxes = 4, + .perf_ctr_bits = 44, + .fixed_ctr_bits = 48, + .perf_ctr = SNB_UNC_CBO_0_PER_CTR0, + .event_ctl = SNB_UNC_CBO_0_PERFEVTSEL0, + .fixed_ctr = SNB_UNC_FIXED_CTR, + .fixed_ctl = SNB_UNC_FIXED_CTR_CTRL, + .single_fixed = 1, + .event_mask = SNB_UNC_RAW_EVENT_MASK, + .msr_offset = SNB_UNC_CBO_MSR_OFFSET, + .constraints = snb_uncore_cbox_constraints, + .ops = &snb_uncore_msr_ops, + .format_group = &snb_uncore_format_group, +}; + +static struct intel_uncore_type *snb_msr_uncores[] = { + &snb_uncore_cbox, + NULL, +}; +/* end of Sandy Bridge uncore support */ + +/* Nehalem uncore support */ +static void nhm_uncore_msr_disable_box(struct intel_uncore_box *box) +{ + wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, 0); +} + +static void nhm_uncore_msr_enable_box(struct intel_uncore_box *box) +{ + wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, NHM_UNC_GLOBAL_CTL_EN_PC_ALL | NHM_UNC_GLOBAL_CTL_EN_FC); +} + +static void nhm_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + + if (hwc->idx < UNCORE_PMC_IDX_FIXED) + wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN); + else + wrmsrl(hwc->config_base, NHM_UNC_FIXED_CTR_CTL_EN); +} + +static struct attribute *nhm_uncore_formats_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_inv.attr, + &format_attr_cmask8.attr, + NULL, +}; + +static struct attribute_group nhm_uncore_format_group = { + .name = "format", + .attrs = nhm_uncore_formats_attr, +}; + +static struct uncore_event_desc nhm_uncore_events[] = { + INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"), + INTEL_UNCORE_EVENT_DESC(qmc_writes_full_any, "event=0x2f,umask=0x0f"), + INTEL_UNCORE_EVENT_DESC(qmc_normal_reads_any, "event=0x2c,umask=0x0f"), + INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_reads, "event=0x20,umask=0x01"), + INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_writes, "event=0x20,umask=0x02"), + INTEL_UNCORE_EVENT_DESC(qhl_request_remote_reads, "event=0x20,umask=0x04"), + INTEL_UNCORE_EVENT_DESC(qhl_request_remote_writes, "event=0x20,umask=0x08"), + INTEL_UNCORE_EVENT_DESC(qhl_request_local_reads, "event=0x20,umask=0x10"), + INTEL_UNCORE_EVENT_DESC(qhl_request_local_writes, "event=0x20,umask=0x20"), + { /* end: all zeroes */ }, +}; + +static struct intel_uncore_ops nhm_uncore_msr_ops = { + .disable_box = nhm_uncore_msr_disable_box, + .enable_box = nhm_uncore_msr_enable_box, + .disable_event = snb_uncore_msr_disable_event, + .enable_event = nhm_uncore_msr_enable_event, + .read_counter = uncore_msr_read_counter, +}; + +static struct intel_uncore_type nhm_uncore = { + .name = "", + .num_counters = 8, + .num_boxes = 1, + .perf_ctr_bits = 48, + .fixed_ctr_bits = 48, + .event_ctl = NHM_UNC_PERFEVTSEL0, + .perf_ctr = NHM_UNC_UNCORE_PMC0, + .fixed_ctr = NHM_UNC_FIXED_CTR, + .fixed_ctl = NHM_UNC_FIXED_CTR_CTRL, + .event_mask = NHM_UNC_RAW_EVENT_MASK, + .event_descs = nhm_uncore_events, + .ops = &nhm_uncore_msr_ops, + .format_group = &nhm_uncore_format_group, +}; + +static struct intel_uncore_type *nhm_msr_uncores[] = { + &nhm_uncore, + NULL, +}; +/* end of Nehalem uncore support */ + +/* Nehalem-EX uncore support */ +#define __BITS_VALUE(x, i, n) ((typeof(x))(((x) >> ((i) * (n))) & \ + ((1ULL << (n)) - 1))) + +DEFINE_UNCORE_FORMAT_ATTR(event5, event, "config:1-5"); +DEFINE_UNCORE_FORMAT_ATTR(counter, counter, "config:6-7"); +DEFINE_UNCORE_FORMAT_ATTR(mm_cfg, mm_cfg, "config:63"); +DEFINE_UNCORE_FORMAT_ATTR(match, match, "config1:0-63"); +DEFINE_UNCORE_FORMAT_ATTR(mask, mask, "config2:0-63"); + +static void nhmex_uncore_msr_init_box(struct intel_uncore_box *box) +{ + wrmsrl(NHMEX_U_MSR_PMON_GLOBAL_CTL, NHMEX_U_PMON_GLOBAL_EN_ALL); +} + +static void nhmex_uncore_msr_disable_box(struct intel_uncore_box *box) +{ + unsigned msr = uncore_msr_box_ctl(box); + u64 config; + + if (msr) { + rdmsrl(msr, config); + config &= ~((1ULL << uncore_num_counters(box)) - 1); + /* WBox has a fixed counter */ + if (uncore_msr_fixed_ctl(box)) + config &= ~NHMEX_W_PMON_GLOBAL_FIXED_EN; + wrmsrl(msr, config); + } +} + +static void nhmex_uncore_msr_enable_box(struct intel_uncore_box *box) +{ + unsigned msr = uncore_msr_box_ctl(box); + u64 config; + + if (msr) { + rdmsrl(msr, config); + config |= (1ULL << uncore_num_counters(box)) - 1; + /* WBox has a fixed counter */ + if (uncore_msr_fixed_ctl(box)) + config |= NHMEX_W_PMON_GLOBAL_FIXED_EN; + wrmsrl(msr, config); + } +} + +static void nhmex_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + wrmsrl(event->hw.config_base, 0); +} + +static void nhmex_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + + if (hwc->idx >= UNCORE_PMC_IDX_FIXED) + wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0); + else if (box->pmu->type->event_mask & NHMEX_PMON_CTL_EN_BIT0) + wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT22); + else + wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT0); +} + +#define NHMEX_UNCORE_OPS_COMMON_INIT() \ + .init_box = nhmex_uncore_msr_init_box, \ + .disable_box = nhmex_uncore_msr_disable_box, \ + .enable_box = nhmex_uncore_msr_enable_box, \ + .disable_event = nhmex_uncore_msr_disable_event, \ + .read_counter = uncore_msr_read_counter + +static struct intel_uncore_ops nhmex_uncore_ops = { + NHMEX_UNCORE_OPS_COMMON_INIT(), + .enable_event = nhmex_uncore_msr_enable_event, +}; + +static struct attribute *nhmex_uncore_ubox_formats_attr[] = { + &format_attr_event.attr, + &format_attr_edge.attr, + NULL, +}; + +static struct attribute_group nhmex_uncore_ubox_format_group = { + .name = "format", + .attrs = nhmex_uncore_ubox_formats_attr, +}; + +static struct intel_uncore_type nhmex_uncore_ubox = { + .name = "ubox", + .num_counters = 1, + .num_boxes = 1, + .perf_ctr_bits = 48, + .event_ctl = NHMEX_U_MSR_PMON_EV_SEL, + .perf_ctr = NHMEX_U_MSR_PMON_CTR, + .event_mask = NHMEX_U_PMON_RAW_EVENT_MASK, + .box_ctl = NHMEX_U_MSR_PMON_GLOBAL_CTL, + .ops = &nhmex_uncore_ops, + .format_group = &nhmex_uncore_ubox_format_group +}; + +static struct attribute *nhmex_uncore_cbox_formats_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_inv.attr, + &format_attr_thresh8.attr, + NULL, +}; + +static struct attribute_group nhmex_uncore_cbox_format_group = { + .name = "format", + .attrs = nhmex_uncore_cbox_formats_attr, +}; + +static struct intel_uncore_type nhmex_uncore_cbox = { + .name = "cbox", + .num_counters = 6, + .num_boxes = 8, + .perf_ctr_bits = 48, + .event_ctl = NHMEX_C0_MSR_PMON_EV_SEL0, + .perf_ctr = NHMEX_C0_MSR_PMON_CTR0, + .event_mask = NHMEX_PMON_RAW_EVENT_MASK, + .box_ctl = NHMEX_C0_MSR_PMON_GLOBAL_CTL, + .msr_offset = NHMEX_C_MSR_OFFSET, + .pair_ctr_ctl = 1, + .ops = &nhmex_uncore_ops, + .format_group = &nhmex_uncore_cbox_format_group +}; + +static struct uncore_event_desc nhmex_uncore_wbox_events[] = { + INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0"), + { /* end: all zeroes */ }, +}; + +static struct intel_uncore_type nhmex_uncore_wbox = { + .name = "wbox", + .num_counters = 4, + .num_boxes = 1, + .perf_ctr_bits = 48, + .event_ctl = NHMEX_W_MSR_PMON_CNT0, + .perf_ctr = NHMEX_W_MSR_PMON_EVT_SEL0, + .fixed_ctr = NHMEX_W_MSR_PMON_FIXED_CTR, + .fixed_ctl = NHMEX_W_MSR_PMON_FIXED_CTL, + .event_mask = NHMEX_PMON_RAW_EVENT_MASK, + .box_ctl = NHMEX_W_MSR_GLOBAL_CTL, + .pair_ctr_ctl = 1, + .event_descs = nhmex_uncore_wbox_events, + .ops = &nhmex_uncore_ops, + .format_group = &nhmex_uncore_cbox_format_group +}; + +static int nhmex_bbox_hw_config(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + struct hw_perf_event_extra *reg2 = &hwc->branch_reg; + int ctr, ev_sel; + + ctr = (hwc->config & NHMEX_B_PMON_CTR_MASK) >> + NHMEX_B_PMON_CTR_SHIFT; + ev_sel = (hwc->config & NHMEX_B_PMON_CTL_EV_SEL_MASK) >> + NHMEX_B_PMON_CTL_EV_SEL_SHIFT; + + /* events that do not use the match/mask registers */ + if ((ctr == 0 && ev_sel > 0x3) || (ctr == 1 && ev_sel > 0x6) || + (ctr == 2 && ev_sel != 0x4) || ctr == 3) + return 0; + + if (box->pmu->pmu_idx == 0) + reg1->reg = NHMEX_B0_MSR_MATCH; + else + reg1->reg = NHMEX_B1_MSR_MATCH; + reg1->idx = 0; + reg1->config = event->attr.config1; + reg2->config = event->attr.config2; + return 0; +} + +static void nhmex_bbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + struct hw_perf_event_extra *reg2 = &hwc->branch_reg; + + if (reg1->idx != EXTRA_REG_NONE) { + wrmsrl(reg1->reg, reg1->config); + wrmsrl(reg1->reg + 1, reg2->config); + } + wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0 | + (hwc->config & NHMEX_B_PMON_CTL_EV_SEL_MASK)); +} + +/* + * The Bbox has 4 counters, but each counter monitors different events. + * Use bits 6-7 in the event config to select counter. + */ +static struct event_constraint nhmex_uncore_bbox_constraints[] = { + EVENT_CONSTRAINT(0 , 1, 0xc0), + EVENT_CONSTRAINT(0x40, 2, 0xc0), + EVENT_CONSTRAINT(0x80, 4, 0xc0), + EVENT_CONSTRAINT(0xc0, 8, 0xc0), + EVENT_CONSTRAINT_END, +}; + +static struct attribute *nhmex_uncore_bbox_formats_attr[] = { + &format_attr_event5.attr, + &format_attr_counter.attr, + &format_attr_match.attr, + &format_attr_mask.attr, + NULL, +}; + +static struct attribute_group nhmex_uncore_bbox_format_group = { + .name = "format", + .attrs = nhmex_uncore_bbox_formats_attr, +}; + +static struct intel_uncore_ops nhmex_uncore_bbox_ops = { + NHMEX_UNCORE_OPS_COMMON_INIT(), + .enable_event = nhmex_bbox_msr_enable_event, + .hw_config = nhmex_bbox_hw_config, + .get_constraint = uncore_get_constraint, + .put_constraint = uncore_put_constraint, +}; + +static struct intel_uncore_type nhmex_uncore_bbox = { + .name = "bbox", + .num_counters = 4, + .num_boxes = 2, + .perf_ctr_bits = 48, + .event_ctl = NHMEX_B0_MSR_PMON_CTL0, + .perf_ctr = NHMEX_B0_MSR_PMON_CTR0, + .event_mask = NHMEX_B_PMON_RAW_EVENT_MASK, + .box_ctl = NHMEX_B0_MSR_PMON_GLOBAL_CTL, + .msr_offset = NHMEX_B_MSR_OFFSET, + .pair_ctr_ctl = 1, + .num_shared_regs = 1, + .constraints = nhmex_uncore_bbox_constraints, + .ops = &nhmex_uncore_bbox_ops, + .format_group = &nhmex_uncore_bbox_format_group +}; + +static int nhmex_sbox_hw_config(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct hw_perf_event_extra *reg2 = &event->hw.branch_reg; + + if (event->attr.config & NHMEX_S_PMON_MM_CFG_EN) { + reg1->config = event->attr.config1; + reg2->config = event->attr.config2; + } else { + reg1->config = ~0ULL; + reg2->config = ~0ULL; + } + + if (box->pmu->pmu_idx == 0) + reg1->reg = NHMEX_S0_MSR_MM_CFG; + else + reg1->reg = NHMEX_S1_MSR_MM_CFG; + + reg1->idx = 0; + + return 0; +} + +static void nhmex_sbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + struct hw_perf_event_extra *reg2 = &hwc->branch_reg; + + wrmsrl(reg1->reg, 0); + if (reg1->config != ~0ULL || reg2->config != ~0ULL) { + wrmsrl(reg1->reg + 1, reg1->config); + wrmsrl(reg1->reg + 2, reg2->config); + wrmsrl(reg1->reg, NHMEX_S_PMON_MM_CFG_EN); + } + wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT22); +} + +static struct attribute *nhmex_uncore_sbox_formats_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + &format_attr_edge.attr, + &format_attr_inv.attr, + &format_attr_thresh8.attr, + &format_attr_mm_cfg.attr, + &format_attr_match.attr, + &format_attr_mask.attr, + NULL, +}; + +static struct attribute_group nhmex_uncore_sbox_format_group = { + .name = "format", + .attrs = nhmex_uncore_sbox_formats_attr, +}; + +static struct intel_uncore_ops nhmex_uncore_sbox_ops = { + NHMEX_UNCORE_OPS_COMMON_INIT(), + .enable_event = nhmex_sbox_msr_enable_event, + .hw_config = nhmex_sbox_hw_config, + .get_constraint = uncore_get_constraint, + .put_constraint = uncore_put_constraint, +}; + +static struct intel_uncore_type nhmex_uncore_sbox = { + .name = "sbox", + .num_counters = 4, + .num_boxes = 2, + .perf_ctr_bits = 48, + .event_ctl = NHMEX_S0_MSR_PMON_CTL0, + .perf_ctr = NHMEX_S0_MSR_PMON_CTR0, + .event_mask = NHMEX_PMON_RAW_EVENT_MASK, + .box_ctl = NHMEX_S0_MSR_PMON_GLOBAL_CTL, + .msr_offset = NHMEX_S_MSR_OFFSET, + .pair_ctr_ctl = 1, + .num_shared_regs = 1, + .ops = &nhmex_uncore_sbox_ops, + .format_group = &nhmex_uncore_sbox_format_group +}; + +enum { + EXTRA_REG_NHMEX_M_FILTER, + EXTRA_REG_NHMEX_M_DSP, + EXTRA_REG_NHMEX_M_ISS, + EXTRA_REG_NHMEX_M_MAP, + EXTRA_REG_NHMEX_M_MSC_THR, + EXTRA_REG_NHMEX_M_PGT, + EXTRA_REG_NHMEX_M_PLD, + EXTRA_REG_NHMEX_M_ZDP_CTL_FVC, +}; + +static struct extra_reg nhmex_uncore_mbox_extra_regs[] = { + MBOX_INC_SEL_EXTAR_REG(0x0, DSP), + MBOX_INC_SEL_EXTAR_REG(0x4, MSC_THR), + MBOX_INC_SEL_EXTAR_REG(0x5, MSC_THR), + MBOX_INC_SEL_EXTAR_REG(0x9, ISS), + /* event 0xa uses two extra registers */ + MBOX_INC_SEL_EXTAR_REG(0xa, ISS), + MBOX_INC_SEL_EXTAR_REG(0xa, PLD), + MBOX_INC_SEL_EXTAR_REG(0xb, PLD), + /* events 0xd ~ 0x10 use the same extra register */ + MBOX_INC_SEL_EXTAR_REG(0xd, ZDP_CTL_FVC), + MBOX_INC_SEL_EXTAR_REG(0xe, ZDP_CTL_FVC), + MBOX_INC_SEL_EXTAR_REG(0xf, ZDP_CTL_FVC), + MBOX_INC_SEL_EXTAR_REG(0x10, ZDP_CTL_FVC), + MBOX_INC_SEL_EXTAR_REG(0x16, PGT), + MBOX_SET_FLAG_SEL_EXTRA_REG(0x0, DSP), + MBOX_SET_FLAG_SEL_EXTRA_REG(0x1, ISS), + MBOX_SET_FLAG_SEL_EXTRA_REG(0x5, PGT), + MBOX_SET_FLAG_SEL_EXTRA_REG(0x6, MAP), + EVENT_EXTRA_END +}; + +static bool nhmex_mbox_get_shared_reg(struct intel_uncore_box *box, int idx, u64 config) +{ + struct intel_uncore_extra_reg *er; + unsigned long flags; + bool ret = false; + u64 mask; + + if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) { + er = &box->shared_regs[idx]; + raw_spin_lock_irqsave(&er->lock, flags); + if (!atomic_read(&er->ref) || er->config == config) { + atomic_inc(&er->ref); + er->config = config; + ret = true; + } + raw_spin_unlock_irqrestore(&er->lock, flags); + + return ret; + } + /* + * The ZDP_CTL_FVC MSR has 4 fields which are used to control + * events 0xd ~ 0x10. Besides these 4 fields, there are additional + * fields which are shared. + */ + idx -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC; + if (WARN_ON_ONCE(idx >= 4)) + return false; + + /* mask of the shared fields */ + mask = NHMEX_M_PMON_ZDP_CTL_FVC_MASK; + er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC]; + + raw_spin_lock_irqsave(&er->lock, flags); + /* add mask of the non-shared field if it's in use */ + if (__BITS_VALUE(atomic_read(&er->ref), idx, 8)) + mask |= NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx); + + if (!atomic_read(&er->ref) || !((er->config ^ config) & mask)) { + atomic_add(1 << (idx * 8), &er->ref); + mask = NHMEX_M_PMON_ZDP_CTL_FVC_MASK | + NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx); + er->config &= ~mask; + er->config |= (config & mask); + ret = true; + } + raw_spin_unlock_irqrestore(&er->lock, flags); + + return ret; +} + +static void nhmex_mbox_put_shared_reg(struct intel_uncore_box *box, int idx) +{ + struct intel_uncore_extra_reg *er; + + if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) { + er = &box->shared_regs[idx]; + atomic_dec(&er->ref); + return; + } + + idx -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC; + er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC]; + atomic_sub(1 << (idx * 8), &er->ref); +} + +u64 nhmex_mbox_alter_er(struct perf_event *event, int new_idx, bool modify) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + int idx, orig_idx = __BITS_VALUE(reg1->idx, 0, 8); + u64 config = reg1->config; + + /* get the non-shared control bits and shift them */ + idx = orig_idx - EXTRA_REG_NHMEX_M_ZDP_CTL_FVC; + config &= NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx); + if (new_idx > orig_idx) { + idx = new_idx - orig_idx; + config <<= 3 * idx; + } else { + idx = orig_idx - new_idx; + config >>= 3 * idx; + } + + /* add the shared control bits back */ + config |= NHMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config; + if (modify) { + /* adjust the main event selector */ + if (new_idx > orig_idx) + hwc->config += idx << NHMEX_M_PMON_CTL_INC_SEL_SHIFT; + else + hwc->config -= idx << NHMEX_M_PMON_CTL_INC_SEL_SHIFT; + reg1->config = config; + reg1->idx = ~0xff | new_idx; + } + return config; +} + +static struct event_constraint * +nhmex_mbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct hw_perf_event_extra *reg2 = &event->hw.branch_reg; + int i, idx[2], alloc = 0; + u64 config1 = reg1->config; + + idx[0] = __BITS_VALUE(reg1->idx, 0, 8); + idx[1] = __BITS_VALUE(reg1->idx, 1, 8); +again: + for (i = 0; i < 2; i++) { + if (!uncore_box_is_fake(box) && (reg1->alloc & (0x1 << i))) + idx[i] = 0xff; + + if (idx[i] == 0xff) + continue; + + if (!nhmex_mbox_get_shared_reg(box, idx[i], + __BITS_VALUE(config1, i, 32))) + goto fail; + alloc |= (0x1 << i); + } + + /* for the match/mask registers */ + if ((uncore_box_is_fake(box) || !reg2->alloc) && + !nhmex_mbox_get_shared_reg(box, reg2->idx, reg2->config)) + goto fail; + + /* + * If it's a fake box -- as per validate_{group,event}() we + * shouldn't touch event state and we can avoid doing so + * since both will only call get_event_constraints() once + * on each event, this avoids the need for reg->alloc. + */ + if (!uncore_box_is_fake(box)) { + if (idx[0] != 0xff && idx[0] != __BITS_VALUE(reg1->idx, 0, 8)) + nhmex_mbox_alter_er(event, idx[0], true); + reg1->alloc |= alloc; + reg2->alloc = 1; + } + return NULL; +fail: + if (idx[0] != 0xff && !(alloc & 0x1) && + idx[0] >= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) { + /* + * events 0xd ~ 0x10 are functional identical, but are + * controlled by different fields in the ZDP_CTL_FVC + * register. If we failed to take one field, try the + * rest 3 choices. */ - for (i = 0; i < 8; i++) { - if (nodeid == ((config >> (3 * i)) & 0x7)) { - pcibus_to_physid[bus] = i; - break; - } + BUG_ON(__BITS_VALUE(reg1->idx, 1, 8) != 0xff); + idx[0] -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC; + idx[0] = (idx[0] + 1) % 4; + idx[0] += EXTRA_REG_NHMEX_M_ZDP_CTL_FVC; + if (idx[0] != __BITS_VALUE(reg1->idx, 0, 8)) { + config1 = nhmex_mbox_alter_er(event, idx[0], false); + goto again; } - }; - return; -} -/* end of Sandy Bridge-EP uncore support */ + } + if (alloc & 0x1) + nhmex_mbox_put_shared_reg(box, idx[0]); + if (alloc & 0x2) + nhmex_mbox_put_shared_reg(box, idx[1]); + return &constraint_empty; +} -/* Sandy Bridge uncore support */ -static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, - struct perf_event *event) +static void nhmex_mbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event) { - struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct hw_perf_event_extra *reg2 = &event->hw.branch_reg; - if (hwc->idx < UNCORE_PMC_IDX_FIXED) - wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN); - else - wrmsrl(hwc->config_base, SNB_UNC_CTL_EN); + if (uncore_box_is_fake(box)) + return; + + if (reg1->alloc & 0x1) + nhmex_mbox_put_shared_reg(box, __BITS_VALUE(reg1->idx, 0, 8)); + if (reg1->alloc & 0x2) + nhmex_mbox_put_shared_reg(box, __BITS_VALUE(reg1->idx, 1, 8)); + reg1->alloc = 0; + + if (reg2->alloc) { + nhmex_mbox_put_shared_reg(box, reg2->idx); + reg2->alloc = 0; + } } -static void snb_uncore_msr_disable_event(struct intel_uncore_box *box, - struct perf_event *event) +static int nhmex_mbox_extra_reg_idx(struct extra_reg *er) { - wrmsrl(event->hw.config_base, 0); + if (er->idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) + return er->idx; + return er->idx + (er->event >> NHMEX_M_PMON_CTL_INC_SEL_SHIFT) - 0xd; } -static u64 snb_uncore_msr_read_counter(struct intel_uncore_box *box, - struct perf_event *event) +static int nhmex_mbox_hw_config(struct intel_uncore_box *box, struct perf_event *event) { - u64 count; - rdmsrl(event->hw.event_base, count); - return count; + struct intel_uncore_type *type = box->pmu->type; + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct hw_perf_event_extra *reg2 = &event->hw.branch_reg; + struct extra_reg *er; + unsigned msr; + int reg_idx = 0; + + if (WARN_ON_ONCE(reg1->idx != -1)) + return -EINVAL; + /* + * The mbox events may require 2 extra MSRs at the most. But only + * the lower 32 bits in these MSRs are significant, so we can use + * config1 to pass two MSRs' config. + */ + for (er = nhmex_uncore_mbox_extra_regs; er->msr; er++) { + if (er->event != (event->hw.config & er->config_mask)) + continue; + if (event->attr.config1 & ~er->valid_mask) + return -EINVAL; + if (er->idx == __BITS_VALUE(reg1->idx, 0, 8) || + er->idx == __BITS_VALUE(reg1->idx, 1, 8)) + continue; + if (WARN_ON_ONCE(reg_idx >= 2)) + return -EINVAL; + + msr = er->msr + type->msr_offset * box->pmu->pmu_idx; + if (WARN_ON_ONCE(msr >= 0xffff || er->idx >= 0xff)) + return -EINVAL; + + /* always use the 32~63 bits to pass the PLD config */ + if (er->idx == EXTRA_REG_NHMEX_M_PLD) + reg_idx = 1; + + reg1->idx &= ~(0xff << (reg_idx * 8)); + reg1->reg &= ~(0xffff << (reg_idx * 16)); + reg1->idx |= nhmex_mbox_extra_reg_idx(er) << (reg_idx * 8); + reg1->reg |= msr << (reg_idx * 16); + reg1->config = event->attr.config1; + reg_idx++; + } + /* use config2 to pass the filter config */ + reg2->idx = EXTRA_REG_NHMEX_M_FILTER; + if (event->attr.config2 & NHMEX_M_PMON_MM_CFG_EN) + reg2->config = event->attr.config2; + else + reg2->config = ~0ULL; + if (box->pmu->pmu_idx == 0) + reg2->reg = NHMEX_M0_MSR_PMU_MM_CFG; + else + reg2->reg = NHMEX_M1_MSR_PMU_MM_CFG; + + return 0; } -static void snb_uncore_msr_init_box(struct intel_uncore_box *box) +static u64 nhmex_mbox_shared_reg_config(struct intel_uncore_box *box, int idx) { - if (box->pmu->pmu_idx == 0) { - wrmsrl(SNB_UNC_PERF_GLOBAL_CTL, - SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL); - } + struct intel_uncore_extra_reg *er; + unsigned long flags; + u64 config; + + if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) + return box->shared_regs[idx].config; + + er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC]; + raw_spin_lock_irqsave(&er->lock, flags); + config = er->config; + raw_spin_unlock_irqrestore(&er->lock, flags); + return config; } -static struct attribute *snb_uncore_formats_attr[] = { - &format_attr_event.attr, - &format_attr_umask.attr, - &format_attr_edge.attr, - &format_attr_inv.attr, - &format_attr_cmask5.attr, +static void nhmex_mbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + struct hw_perf_event_extra *reg2 = &hwc->branch_reg; + int idx; + + idx = __BITS_VALUE(reg1->idx, 0, 8); + if (idx != 0xff) + wrmsrl(__BITS_VALUE(reg1->reg, 0, 16), + nhmex_mbox_shared_reg_config(box, idx)); + idx = __BITS_VALUE(reg1->idx, 1, 8); + if (idx != 0xff) + wrmsrl(__BITS_VALUE(reg1->reg, 1, 16), + nhmex_mbox_shared_reg_config(box, idx)); + + wrmsrl(reg2->reg, 0); + if (reg2->config != ~0ULL) { + wrmsrl(reg2->reg + 1, + reg2->config & NHMEX_M_PMON_ADDR_MATCH_MASK); + wrmsrl(reg2->reg + 2, NHMEX_M_PMON_ADDR_MASK_MASK & + (reg2->config >> NHMEX_M_PMON_ADDR_MASK_SHIFT)); + wrmsrl(reg2->reg, NHMEX_M_PMON_MM_CFG_EN); + } + + wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT0); +} + +DEFINE_UNCORE_FORMAT_ATTR(count_mode, count_mode, "config:2-3"); +DEFINE_UNCORE_FORMAT_ATTR(storage_mode, storage_mode, "config:4-5"); +DEFINE_UNCORE_FORMAT_ATTR(wrap_mode, wrap_mode, "config:6"); +DEFINE_UNCORE_FORMAT_ATTR(flag_mode, flag_mode, "config:7"); +DEFINE_UNCORE_FORMAT_ATTR(inc_sel, inc_sel, "config:9-13"); +DEFINE_UNCORE_FORMAT_ATTR(set_flag_sel, set_flag_sel, "config:19-21"); +DEFINE_UNCORE_FORMAT_ATTR(filter_cfg, filter_cfg, "config2:63"); +DEFINE_UNCORE_FORMAT_ATTR(filter_match, filter_match, "config2:0-33"); +DEFINE_UNCORE_FORMAT_ATTR(filter_mask, filter_mask, "config2:34-61"); +DEFINE_UNCORE_FORMAT_ATTR(dsp, dsp, "config1:0-31"); +DEFINE_UNCORE_FORMAT_ATTR(thr, thr, "config1:0-31"); +DEFINE_UNCORE_FORMAT_ATTR(fvc, fvc, "config1:0-31"); +DEFINE_UNCORE_FORMAT_ATTR(pgt, pgt, "config1:0-31"); +DEFINE_UNCORE_FORMAT_ATTR(map, map, "config1:0-31"); +DEFINE_UNCORE_FORMAT_ATTR(iss, iss, "config1:0-31"); +DEFINE_UNCORE_FORMAT_ATTR(pld, pld, "config1:32-63"); + +static struct attribute *nhmex_uncore_mbox_formats_attr[] = { + &format_attr_count_mode.attr, + &format_attr_storage_mode.attr, + &format_attr_wrap_mode.attr, + &format_attr_flag_mode.attr, + &format_attr_inc_sel.attr, + &format_attr_set_flag_sel.attr, + &format_attr_filter_cfg.attr, + &format_attr_filter_match.attr, + &format_attr_filter_mask.attr, + &format_attr_dsp.attr, + &format_attr_thr.attr, + &format_attr_fvc.attr, + &format_attr_pgt.attr, + &format_attr_map.attr, + &format_attr_iss.attr, + &format_attr_pld.attr, NULL, }; -static struct attribute_group snb_uncore_format_group = { - .name = "format", - .attrs = snb_uncore_formats_attr, +static struct attribute_group nhmex_uncore_mbox_format_group = { + .name = "format", + .attrs = nhmex_uncore_mbox_formats_attr, }; -static struct intel_uncore_ops snb_uncore_msr_ops = { - .init_box = snb_uncore_msr_init_box, - .disable_event = snb_uncore_msr_disable_event, - .enable_event = snb_uncore_msr_enable_event, - .read_counter = snb_uncore_msr_read_counter, +static struct uncore_event_desc nhmex_uncore_mbox_events[] = { + INTEL_UNCORE_EVENT_DESC(bbox_cmds_read, "inc_sel=0xd,fvc=0x2800"), + INTEL_UNCORE_EVENT_DESC(bbox_cmds_write, "inc_sel=0xd,fvc=0x2820"), + { /* end: all zeroes */ }, }; -static struct event_constraint snb_uncore_cbox_constraints[] = { - UNCORE_EVENT_CONSTRAINT(0x80, 0x1), - UNCORE_EVENT_CONSTRAINT(0x83, 0x1), - EVENT_CONSTRAINT_END +static struct intel_uncore_ops nhmex_uncore_mbox_ops = { + NHMEX_UNCORE_OPS_COMMON_INIT(), + .enable_event = nhmex_mbox_msr_enable_event, + .hw_config = nhmex_mbox_hw_config, + .get_constraint = nhmex_mbox_get_constraint, + .put_constraint = nhmex_mbox_put_constraint, }; -static struct intel_uncore_type snb_uncore_cbox = { - .name = "cbox", - .num_counters = 2, - .num_boxes = 4, - .perf_ctr_bits = 44, - .fixed_ctr_bits = 48, - .perf_ctr = SNB_UNC_CBO_0_PER_CTR0, - .event_ctl = SNB_UNC_CBO_0_PERFEVTSEL0, - .fixed_ctr = SNB_UNC_FIXED_CTR, - .fixed_ctl = SNB_UNC_FIXED_CTR_CTRL, - .single_fixed = 1, - .event_mask = SNB_UNC_RAW_EVENT_MASK, - .msr_offset = SNB_UNC_CBO_MSR_OFFSET, - .constraints = snb_uncore_cbox_constraints, - .ops = &snb_uncore_msr_ops, - .format_group = &snb_uncore_format_group, +static struct intel_uncore_type nhmex_uncore_mbox = { + .name = "mbox", + .num_counters = 6, + .num_boxes = 2, + .perf_ctr_bits = 48, + .event_ctl = NHMEX_M0_MSR_PMU_CTL0, + .perf_ctr = NHMEX_M0_MSR_PMU_CNT0, + .event_mask = NHMEX_M_PMON_RAW_EVENT_MASK, + .box_ctl = NHMEX_M0_MSR_GLOBAL_CTL, + .msr_offset = NHMEX_M_MSR_OFFSET, + .pair_ctr_ctl = 1, + .num_shared_regs = 8, + .event_descs = nhmex_uncore_mbox_events, + .ops = &nhmex_uncore_mbox_ops, + .format_group = &nhmex_uncore_mbox_format_group, }; -static struct intel_uncore_type *snb_msr_uncores[] = { - &snb_uncore_cbox, - NULL, -}; -/* end of Sandy Bridge uncore support */ +void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + int port; -/* Nehalem uncore support */ -static void nhm_uncore_msr_disable_box(struct intel_uncore_box *box) + /* adjust the main event selector */ + if (reg1->idx % 2) { + reg1->idx--; + hwc->config -= 1 << NHMEX_R_PMON_CTL_EV_SEL_SHIFT; + } else { + reg1->idx++; + hwc->config += 1 << NHMEX_R_PMON_CTL_EV_SEL_SHIFT; + } + + /* adjust address or config of extra register */ + port = reg1->idx / 6 + box->pmu->pmu_idx * 4; + switch (reg1->idx % 6) { + case 0: + reg1->reg = NHMEX_R_MSR_PORTN_IPERF_CFG0(port); + break; + case 1: + reg1->reg = NHMEX_R_MSR_PORTN_IPERF_CFG1(port); + break; + case 2: + /* the 8~15 bits to the 0~7 bits */ + reg1->config >>= 8; + break; + case 3: + /* the 0~7 bits to the 8~15 bits */ + reg1->config <<= 8; + break; + case 4: + reg1->reg = NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(port); + break; + case 5: + reg1->reg = NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(port); + break; + }; +} + +/* + * Each rbox has 4 event set which monitor PQI port 0~3 or 4~7. + * An event set consists of 6 events, the 3rd and 4th events in + * an event set use the same extra register. So an event set uses + * 5 extra registers. + */ +static struct event_constraint * +nhmex_rbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event) { - wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, 0); + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + struct hw_perf_event_extra *reg2 = &hwc->branch_reg; + struct intel_uncore_extra_reg *er; + unsigned long flags; + int idx, er_idx; + u64 config1; + bool ok = false; + + if (!uncore_box_is_fake(box) && reg1->alloc) + return NULL; + + idx = reg1->idx % 6; + config1 = reg1->config; +again: + er_idx = idx; + /* the 3rd and 4th events use the same extra register */ + if (er_idx > 2) + er_idx--; + er_idx += (reg1->idx / 6) * 5; + + er = &box->shared_regs[er_idx]; + raw_spin_lock_irqsave(&er->lock, flags); + if (idx < 2) { + if (!atomic_read(&er->ref) || er->config == reg1->config) { + atomic_inc(&er->ref); + er->config = reg1->config; + ok = true; + } + } else if (idx == 2 || idx == 3) { + /* + * these two events use different fields in a extra register, + * the 0~7 bits and the 8~15 bits respectively. + */ + u64 mask = 0xff << ((idx - 2) * 8); + if (!__BITS_VALUE(atomic_read(&er->ref), idx - 2, 8) || + !((er->config ^ config1) & mask)) { + atomic_add(1 << ((idx - 2) * 8), &er->ref); + er->config &= ~mask; + er->config |= config1 & mask; + ok = true; + } + } else { + if (!atomic_read(&er->ref) || + (er->config == (hwc->config >> 32) && + er->config1 == reg1->config && + er->config2 == reg2->config)) { + atomic_inc(&er->ref); + er->config = (hwc->config >> 32); + er->config1 = reg1->config; + er->config2 = reg2->config; + ok = true; + } + } + raw_spin_unlock_irqrestore(&er->lock, flags); + + if (!ok) { + /* + * The Rbox events are always in pairs. The paired + * events are functional identical, but use different + * extra registers. If we failed to take an extra + * register, try the alternative. + */ + if (idx % 2) + idx--; + else + idx++; + if (idx != reg1->idx % 6) { + if (idx == 2) + config1 >>= 8; + else if (idx == 3) + config1 <<= 8; + goto again; + } + } else { + if (!uncore_box_is_fake(box)) { + if (idx != reg1->idx % 6) + nhmex_rbox_alter_er(box, event); + reg1->alloc = 1; + } + return NULL; + } + return &constraint_empty; } -static void nhm_uncore_msr_enable_box(struct intel_uncore_box *box) +static void nhmex_rbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event) { - wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, - NHM_UNC_GLOBAL_CTL_EN_PC_ALL | NHM_UNC_GLOBAL_CTL_EN_FC); + struct intel_uncore_extra_reg *er; + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + int idx, er_idx; + + if (uncore_box_is_fake(box) || !reg1->alloc) + return; + + idx = reg1->idx % 6; + er_idx = idx; + if (er_idx > 2) + er_idx--; + er_idx += (reg1->idx / 6) * 5; + + er = &box->shared_regs[er_idx]; + if (idx == 2 || idx == 3) + atomic_sub(1 << ((idx - 2) * 8), &er->ref); + else + atomic_dec(&er->ref); + + reg1->alloc = 0; } -static void nhm_uncore_msr_enable_event(struct intel_uncore_box *box, - struct perf_event *event) +static int nhmex_rbox_hw_config(struct intel_uncore_box *box, struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; + struct hw_perf_event_extra *reg2 = &event->hw.branch_reg; + int port, idx; - if (hwc->idx < UNCORE_PMC_IDX_FIXED) - wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN); - else - wrmsrl(hwc->config_base, NHM_UNC_FIXED_CTR_CTL_EN); + idx = (event->hw.config & NHMEX_R_PMON_CTL_EV_SEL_MASK) >> + NHMEX_R_PMON_CTL_EV_SEL_SHIFT; + if (idx >= 0x18) + return -EINVAL; + + reg1->idx = idx; + reg1->config = event->attr.config1; + + port = idx / 6 + box->pmu->pmu_idx * 4; + idx %= 6; + switch (idx) { + case 0: + reg1->reg = NHMEX_R_MSR_PORTN_IPERF_CFG0(port); + break; + case 1: + reg1->reg = NHMEX_R_MSR_PORTN_IPERF_CFG1(port); + break; + case 2: + case 3: + reg1->reg = NHMEX_R_MSR_PORTN_QLX_CFG(port); + break; + case 4: + case 5: + if (idx == 4) + reg1->reg = NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(port); + else + reg1->reg = NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(port); + reg2->config = event->attr.config2; + hwc->config |= event->attr.config & (~0ULL << 32); + break; + }; + return 0; } -static struct attribute *nhm_uncore_formats_attr[] = { - &format_attr_event.attr, - &format_attr_umask.attr, - &format_attr_edge.attr, - &format_attr_inv.attr, - &format_attr_cmask8.attr, +static u64 nhmex_rbox_shared_reg_config(struct intel_uncore_box *box, int idx) +{ + struct intel_uncore_extra_reg *er; + unsigned long flags; + u64 config; + + er = &box->shared_regs[idx]; + + raw_spin_lock_irqsave(&er->lock, flags); + config = er->config; + raw_spin_unlock_irqrestore(&er->lock, flags); + + return config; +} + +static void nhmex_rbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + struct hw_perf_event_extra *reg1 = &hwc->extra_reg; + struct hw_perf_event_extra *reg2 = &hwc->branch_reg; + int idx, er_idx; + + idx = reg1->idx % 6; + er_idx = idx; + if (er_idx > 2) + er_idx--; + er_idx += (reg1->idx / 6) * 5; + + switch (idx) { + case 0: + case 1: + wrmsrl(reg1->reg, reg1->config); + break; + case 2: + case 3: + wrmsrl(reg1->reg, nhmex_rbox_shared_reg_config(box, er_idx)); + break; + case 4: + case 5: + wrmsrl(reg1->reg, reg1->config); + wrmsrl(reg1->reg + 1, hwc->config >> 32); + wrmsrl(reg1->reg + 2, reg2->config); + break; + }; + + wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0 | + (hwc->config & NHMEX_R_PMON_CTL_EV_SEL_MASK)); +} + +DEFINE_UNCORE_FORMAT_ATTR(xbr_match, xbr_match, "config:32-63"); +DEFINE_UNCORE_FORMAT_ATTR(xbr_mm_cfg, xbr_mm_cfg, "config1:0-63"); +DEFINE_UNCORE_FORMAT_ATTR(xbr_mask, xbr_mask, "config2:0-63"); +DEFINE_UNCORE_FORMAT_ATTR(qlx_cfg, qlx_cfg, "config1:0-15"); +DEFINE_UNCORE_FORMAT_ATTR(iperf_cfg, iperf_cfg, "config1:0-31"); + +static struct attribute *nhmex_uncore_rbox_formats_attr[] = { + &format_attr_event5.attr, + &format_attr_xbr_mm_cfg.attr, + &format_attr_xbr_match.attr, + &format_attr_xbr_mask.attr, + &format_attr_qlx_cfg.attr, + &format_attr_iperf_cfg.attr, NULL, }; -static struct attribute_group nhm_uncore_format_group = { +static struct attribute_group nhmex_uncore_rbox_format_group = { .name = "format", - .attrs = nhm_uncore_formats_attr, + .attrs = nhmex_uncore_rbox_formats_attr, }; -static struct uncore_event_desc nhm_uncore_events[] = { - INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"), - INTEL_UNCORE_EVENT_DESC(qmc_writes_full_any, "event=0x2f,umask=0x0f"), - INTEL_UNCORE_EVENT_DESC(qmc_normal_reads_any, "event=0x2c,umask=0x0f"), - INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_reads, "event=0x20,umask=0x01"), - INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_writes, "event=0x20,umask=0x02"), - INTEL_UNCORE_EVENT_DESC(qhl_request_remote_reads, "event=0x20,umask=0x04"), - INTEL_UNCORE_EVENT_DESC(qhl_request_remote_writes, "event=0x20,umask=0x08"), - INTEL_UNCORE_EVENT_DESC(qhl_request_local_reads, "event=0x20,umask=0x10"), - INTEL_UNCORE_EVENT_DESC(qhl_request_local_writes, "event=0x20,umask=0x20"), +static struct uncore_event_desc nhmex_uncore_rbox_events[] = { + INTEL_UNCORE_EVENT_DESC(qpi0_flit_send, "event=0x0,iperf_cfg=0x80000000"), + INTEL_UNCORE_EVENT_DESC(qpi1_filt_send, "event=0x6,iperf_cfg=0x80000000"), + INTEL_UNCORE_EVENT_DESC(qpi0_idle_filt, "event=0x0,iperf_cfg=0x40000000"), + INTEL_UNCORE_EVENT_DESC(qpi1_idle_filt, "event=0x6,iperf_cfg=0x40000000"), + INTEL_UNCORE_EVENT_DESC(qpi0_date_response, "event=0x0,iperf_cfg=0xc4"), + INTEL_UNCORE_EVENT_DESC(qpi1_date_response, "event=0x6,iperf_cfg=0xc4"), { /* end: all zeroes */ }, }; -static struct intel_uncore_ops nhm_uncore_msr_ops = { - .disable_box = nhm_uncore_msr_disable_box, - .enable_box = nhm_uncore_msr_enable_box, - .disable_event = snb_uncore_msr_disable_event, - .enable_event = nhm_uncore_msr_enable_event, - .read_counter = snb_uncore_msr_read_counter, +static struct intel_uncore_ops nhmex_uncore_rbox_ops = { + NHMEX_UNCORE_OPS_COMMON_INIT(), + .enable_event = nhmex_rbox_msr_enable_event, + .hw_config = nhmex_rbox_hw_config, + .get_constraint = nhmex_rbox_get_constraint, + .put_constraint = nhmex_rbox_put_constraint, }; -static struct intel_uncore_type nhm_uncore = { - .name = "", - .num_counters = 8, - .num_boxes = 1, - .perf_ctr_bits = 48, - .fixed_ctr_bits = 48, - .event_ctl = NHM_UNC_PERFEVTSEL0, - .perf_ctr = NHM_UNC_UNCORE_PMC0, - .fixed_ctr = NHM_UNC_FIXED_CTR, - .fixed_ctl = NHM_UNC_FIXED_CTR_CTRL, - .event_mask = NHM_UNC_RAW_EVENT_MASK, - .event_descs = nhm_uncore_events, - .ops = &nhm_uncore_msr_ops, - .format_group = &nhm_uncore_format_group, +static struct intel_uncore_type nhmex_uncore_rbox = { + .name = "rbox", + .num_counters = 8, + .num_boxes = 2, + .perf_ctr_bits = 48, + .event_ctl = NHMEX_R_MSR_PMON_CTL0, + .perf_ctr = NHMEX_R_MSR_PMON_CNT0, + .event_mask = NHMEX_R_PMON_RAW_EVENT_MASK, + .box_ctl = NHMEX_R_MSR_GLOBAL_CTL, + .msr_offset = NHMEX_R_MSR_OFFSET, + .pair_ctr_ctl = 1, + .num_shared_regs = 20, + .event_descs = nhmex_uncore_rbox_events, + .ops = &nhmex_uncore_rbox_ops, + .format_group = &nhmex_uncore_rbox_format_group }; -static struct intel_uncore_type *nhm_msr_uncores[] = { - &nhm_uncore, +static struct intel_uncore_type *nhmex_msr_uncores[] = { + &nhmex_uncore_ubox, + &nhmex_uncore_cbox, + &nhmex_uncore_bbox, + &nhmex_uncore_sbox, + &nhmex_uncore_mbox, + &nhmex_uncore_rbox, + &nhmex_uncore_wbox, NULL, }; -/* end of Nehalem uncore support */ +/* end of Nehalem-EX uncore support */ -static void uncore_assign_hw_event(struct intel_uncore_box *box, - struct perf_event *event, int idx) +static void uncore_assign_hw_event(struct intel_uncore_box *box, struct perf_event *event, int idx) { struct hw_perf_event *hwc = &event->hw; @@ -787,8 +1841,7 @@ static void uncore_assign_hw_event(struct intel_uncore_box *box, hwc->event_base = uncore_perf_ctr(box, hwc->idx); } -static void uncore_perf_event_update(struct intel_uncore_box *box, - struct perf_event *event) +static void uncore_perf_event_update(struct intel_uncore_box *box, struct perf_event *event) { u64 prev_count, new_count, delta; int shift; @@ -858,14 +1911,12 @@ static void uncore_pmu_init_hrtimer(struct intel_uncore_box *box) box->hrtimer.function = uncore_pmu_hrtimer; } -struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type, - int cpu) +struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type, int cpu) { struct intel_uncore_box *box; int i, size; - size = sizeof(*box) + type->num_shared_regs * - sizeof(struct intel_uncore_extra_reg); + size = sizeof(*box) + type->num_shared_regs * sizeof(struct intel_uncore_extra_reg); box = kmalloc_node(size, GFP_KERNEL | __GFP_ZERO, cpu_to_node(cpu)); if (!box) @@ -915,12 +1966,11 @@ static struct intel_uncore_box *uncore_event_to_box(struct perf_event *event) * perf core schedules event on the basis of cpu, uncore events are * collected by one of the cpus inside a physical package. */ - return uncore_pmu_to_box(uncore_event_to_pmu(event), - smp_processor_id()); + return uncore_pmu_to_box(uncore_event_to_pmu(event), smp_processor_id()); } -static int uncore_collect_events(struct intel_uncore_box *box, - struct perf_event *leader, bool dogrp) +static int +uncore_collect_events(struct intel_uncore_box *box, struct perf_event *leader, bool dogrp) { struct perf_event *event; int n, max_count; @@ -952,8 +2002,7 @@ static int uncore_collect_events(struct intel_uncore_box *box, } static struct event_constraint * -uncore_get_event_constraint(struct intel_uncore_box *box, - struct perf_event *event) +uncore_get_event_constraint(struct intel_uncore_box *box, struct perf_event *event) { struct intel_uncore_type *type = box->pmu->type; struct event_constraint *c; @@ -977,15 +2026,13 @@ uncore_get_event_constraint(struct intel_uncore_box *box, return &type->unconstrainted; } -static void uncore_put_event_constraint(struct intel_uncore_box *box, - struct perf_event *event) +static void uncore_put_event_constraint(struct intel_uncore_box *box, struct perf_event *event) { if (box->pmu->type->ops->put_constraint) box->pmu->type->ops->put_constraint(box, event); } -static int uncore_assign_events(struct intel_uncore_box *box, - int assign[], int n) +static int uncore_assign_events(struct intel_uncore_box *box, int assign[], int n) { unsigned long used_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)]; struct event_constraint *c, *constraints[UNCORE_PMC_IDX_MAX]; @@ -1407,8 +2454,7 @@ static bool pcidrv_registered; /* * add a pci uncore device */ -static int __devinit uncore_pci_add(struct intel_uncore_type *type, - struct pci_dev *pdev) +static int __devinit uncore_pci_add(struct intel_uncore_type *type, struct pci_dev *pdev) { struct intel_uncore_pmu *pmu; struct intel_uncore_box *box; @@ -1485,6 +2531,7 @@ static int __devinit uncore_pci_probe(struct pci_dev *pdev, struct intel_uncore_type *type; type = (struct intel_uncore_type *)id->driver_data; + return uncore_pci_add(type, pdev); } @@ -1612,8 +2659,8 @@ static int __cpuinit uncore_cpu_prepare(int cpu, int phys_id) return 0; } -static void __cpuinit uncore_change_context(struct intel_uncore_type **uncores, - int old_cpu, int new_cpu) +static void __cpuinit +uncore_change_context(struct intel_uncore_type **uncores, int old_cpu, int new_cpu) { struct intel_uncore_type *type; struct intel_uncore_pmu *pmu; @@ -1694,8 +2741,8 @@ static void __cpuinit uncore_event_init_cpu(int cpu) uncore_change_context(pci_uncores, -1, cpu); } -static int __cpuinit uncore_cpu_notifier(struct notifier_block *self, - unsigned long action, void *hcpu) +static int + __cpuinit uncore_cpu_notifier(struct notifier_block *self, unsigned long action, void *hcpu) { unsigned int cpu = (long)hcpu; @@ -1732,12 +2779,12 @@ static int __cpuinit uncore_cpu_notifier(struct notifier_block *self, } static struct notifier_block uncore_cpu_nb __cpuinitdata = { - .notifier_call = uncore_cpu_notifier, + .notifier_call = uncore_cpu_notifier, /* * to migrate uncore events, our notifier should be executed * before perf core's notifier. */ - .priority = CPU_PRI_PERF + 1, + .priority = CPU_PRI_PERF + 1, }; static void __init uncore_cpu_setup(void *dummy) @@ -1767,6 +2814,9 @@ static int __init uncore_cpu_init(void) snbep_uncore_cbox.num_boxes = max_cores; msr_uncores = snbep_msr_uncores; break; + case 46: + msr_uncores = nhmex_msr_uncores; + break; default: return 0; } diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h index b13e9ea..f385189 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h @@ -5,8 +5,6 @@ #include "perf_event.h" #define UNCORE_PMU_NAME_LEN 32 -#define UNCORE_BOX_HASH_SIZE 8 - #define UNCORE_PMU_HRTIMER_INTERVAL (60 * NSEC_PER_SEC) #define UNCORE_FIXED_EVENT 0xff @@ -115,6 +113,10 @@ SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \ SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET) +#define SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK \ + (SNBEP_PMON_RAW_EVENT_MASK | \ + SNBEP_PMON_CTL_EV_SEL_EXT) + /* SNB-EP pci control register */ #define SNBEP_PCI_PMON_BOX_CTL 0xf4 #define SNBEP_PCI_PMON_CTL0 0xd8 @@ -158,6 +160,193 @@ #define SNBEP_PCU_MSR_CORE_C3_CTR 0x3fc #define SNBEP_PCU_MSR_CORE_C6_CTR 0x3fd +/* NHM-EX event control */ +#define NHMEX_PMON_CTL_EV_SEL_MASK 0x000000ff +#define NHMEX_PMON_CTL_UMASK_MASK 0x0000ff00 +#define NHMEX_PMON_CTL_EN_BIT0 (1 << 0) +#define NHMEX_PMON_CTL_EDGE_DET (1 << 18) +#define NHMEX_PMON_CTL_PMI_EN (1 << 20) +#define NHMEX_PMON_CTL_EN_BIT22 (1 << 22) +#define NHMEX_PMON_CTL_INVERT (1 << 23) +#define NHMEX_PMON_CTL_TRESH_MASK 0xff000000 +#define NHMEX_PMON_RAW_EVENT_MASK (NHMEX_PMON_CTL_EV_SEL_MASK | \ + NHMEX_PMON_CTL_UMASK_MASK | \ + NHMEX_PMON_CTL_EDGE_DET | \ + NHMEX_PMON_CTL_INVERT | \ + NHMEX_PMON_CTL_TRESH_MASK) + +/* NHM-EX Ubox */ +#define NHMEX_U_MSR_PMON_GLOBAL_CTL 0xc00 +#define NHMEX_U_MSR_PMON_CTR 0xc11 +#define NHMEX_U_MSR_PMON_EV_SEL 0xc10 + +#define NHMEX_U_PMON_GLOBAL_EN (1 << 0) +#define NHMEX_U_PMON_GLOBAL_PMI_CORE_SEL 0x0000001e +#define NHMEX_U_PMON_GLOBAL_EN_ALL (1 << 28) +#define NHMEX_U_PMON_GLOBAL_RST_ALL (1 << 29) +#define NHMEX_U_PMON_GLOBAL_FRZ_ALL (1 << 31) + +#define NHMEX_U_PMON_RAW_EVENT_MASK \ + (NHMEX_PMON_CTL_EV_SEL_MASK | \ + NHMEX_PMON_CTL_EDGE_DET) + +/* NHM-EX Cbox */ +#define NHMEX_C0_MSR_PMON_GLOBAL_CTL 0xd00 +#define NHMEX_C0_MSR_PMON_CTR0 0xd11 +#define NHMEX_C0_MSR_PMON_EV_SEL0 0xd10 +#define NHMEX_C_MSR_OFFSET 0x20 + +/* NHM-EX Bbox */ +#define NHMEX_B0_MSR_PMON_GLOBAL_CTL 0xc20 +#define NHMEX_B0_MSR_PMON_CTR0 0xc31 +#define NHMEX_B0_MSR_PMON_CTL0 0xc30 +#define NHMEX_B_MSR_OFFSET 0x40 +#define NHMEX_B0_MSR_MATCH 0xe45 +#define NHMEX_B0_MSR_MASK 0xe46 +#define NHMEX_B1_MSR_MATCH 0xe4d +#define NHMEX_B1_MSR_MASK 0xe4e + +#define NHMEX_B_PMON_CTL_EN (1 << 0) +#define NHMEX_B_PMON_CTL_EV_SEL_SHIFT 1 +#define NHMEX_B_PMON_CTL_EV_SEL_MASK \ + (0x1f << NHMEX_B_PMON_CTL_EV_SEL_SHIFT) +#define NHMEX_B_PMON_CTR_SHIFT 6 +#define NHMEX_B_PMON_CTR_MASK \ + (0x3 << NHMEX_B_PMON_CTR_SHIFT) +#define NHMEX_B_PMON_RAW_EVENT_MASK \ + (NHMEX_B_PMON_CTL_EV_SEL_MASK | \ + NHMEX_B_PMON_CTR_MASK) + +/* NHM-EX Sbox */ +#define NHMEX_S0_MSR_PMON_GLOBAL_CTL 0xc40 +#define NHMEX_S0_MSR_PMON_CTR0 0xc51 +#define NHMEX_S0_MSR_PMON_CTL0 0xc50 +#define NHMEX_S_MSR_OFFSET 0x80 +#define NHMEX_S0_MSR_MM_CFG 0xe48 +#define NHMEX_S0_MSR_MATCH 0xe49 +#define NHMEX_S0_MSR_MASK 0xe4a +#define NHMEX_S1_MSR_MM_CFG 0xe58 +#define NHMEX_S1_MSR_MATCH 0xe59 +#define NHMEX_S1_MSR_MASK 0xe5a + +#define NHMEX_S_PMON_MM_CFG_EN (0x1ULL << 63) + +/* NHM-EX Mbox */ +#define NHMEX_M0_MSR_GLOBAL_CTL 0xca0 +#define NHMEX_M0_MSR_PMU_DSP 0xca5 +#define NHMEX_M0_MSR_PMU_ISS 0xca6 +#define NHMEX_M0_MSR_PMU_MAP 0xca7 +#define NHMEX_M0_MSR_PMU_MSC_THR 0xca8 +#define NHMEX_M0_MSR_PMU_PGT 0xca9 +#define NHMEX_M0_MSR_PMU_PLD 0xcaa +#define NHMEX_M0_MSR_PMU_ZDP_CTL_FVC 0xcab +#define NHMEX_M0_MSR_PMU_CTL0 0xcb0 +#define NHMEX_M0_MSR_PMU_CNT0 0xcb1 +#define NHMEX_M_MSR_OFFSET 0x40 +#define NHMEX_M0_MSR_PMU_MM_CFG 0xe54 +#define NHMEX_M1_MSR_PMU_MM_CFG 0xe5c + +#define NHMEX_M_PMON_MM_CFG_EN (1ULL << 63) +#define NHMEX_M_PMON_ADDR_MATCH_MASK 0x3ffffffffULL +#define NHMEX_M_PMON_ADDR_MASK_MASK 0x7ffffffULL +#define NHMEX_M_PMON_ADDR_MASK_SHIFT 34 + +#define NHMEX_M_PMON_CTL_EN (1 << 0) +#define NHMEX_M_PMON_CTL_PMI_EN (1 << 1) +#define NHMEX_M_PMON_CTL_COUNT_MODE_SHIFT 2 +#define NHMEX_M_PMON_CTL_COUNT_MODE_MASK \ + (0x3 << NHMEX_M_PMON_CTL_COUNT_MODE_SHIFT) +#define NHMEX_M_PMON_CTL_STORAGE_MODE_SHIFT 4 +#define NHMEX_M_PMON_CTL_STORAGE_MODE_MASK \ + (0x3 << NHMEX_M_PMON_CTL_STORAGE_MODE_SHIFT) +#define NHMEX_M_PMON_CTL_WRAP_MODE (1 << 6) +#define NHMEX_M_PMON_CTL_FLAG_MODE (1 << 7) +#define NHMEX_M_PMON_CTL_INC_SEL_SHIFT 9 +#define NHMEX_M_PMON_CTL_INC_SEL_MASK \ + (0x1f << NHMEX_M_PMON_CTL_INC_SEL_SHIFT) +#define NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT 19 +#define NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK \ + (0x7 << NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT) +#define NHMEX_M_PMON_RAW_EVENT_MASK \ + (NHMEX_M_PMON_CTL_COUNT_MODE_MASK | \ + NHMEX_M_PMON_CTL_STORAGE_MODE_MASK | \ + NHMEX_M_PMON_CTL_WRAP_MODE | \ + NHMEX_M_PMON_CTL_FLAG_MODE | \ + NHMEX_M_PMON_CTL_INC_SEL_MASK | \ + NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK) + + +#define NHMEX_M_PMON_ZDP_CTL_FVC_FVID_MASK 0x1f +#define NHMEX_M_PMON_ZDP_CTL_FVC_BCMD_MASK (0x7 << 5) +#define NHMEX_M_PMON_ZDP_CTL_FVC_RSP_MASK (0x7 << 8) +#define NHMEX_M_PMON_ZDP_CTL_FVC_PBOX_INIT_ERR (1 << 23) +#define NHMEX_M_PMON_ZDP_CTL_FVC_MASK \ + (NHMEX_M_PMON_ZDP_CTL_FVC_FVID_MASK | \ + NHMEX_M_PMON_ZDP_CTL_FVC_BCMD_MASK | \ + NHMEX_M_PMON_ZDP_CTL_FVC_RSP_MASK | \ + NHMEX_M_PMON_ZDP_CTL_FVC_PBOX_INIT_ERR) +#define NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7 << (11 + 3 * (n))) + +/* + * use the 9~13 bits to select event If the 7th bit is not set, + * otherwise use the 19~21 bits to select event. + */ +#define MBOX_INC_SEL(x) ((x) << NHMEX_M_PMON_CTL_INC_SEL_SHIFT) +#define MBOX_SET_FLAG_SEL(x) (((x) << NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT) | \ + NHMEX_M_PMON_CTL_FLAG_MODE) +#define MBOX_INC_SEL_MASK (NHMEX_M_PMON_CTL_INC_SEL_MASK | \ + NHMEX_M_PMON_CTL_FLAG_MODE) +#define MBOX_SET_FLAG_SEL_MASK (NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK | \ + NHMEX_M_PMON_CTL_FLAG_MODE) +#define MBOX_INC_SEL_EXTAR_REG(c, r) \ + EVENT_EXTRA_REG(MBOX_INC_SEL(c), NHMEX_M0_MSR_PMU_##r, \ + MBOX_INC_SEL_MASK, (u64)-1, NHMEX_M_##r) +#define MBOX_SET_FLAG_SEL_EXTRA_REG(c, r) \ + EVENT_EXTRA_REG(MBOX_SET_FLAG_SEL(c), NHMEX_M0_MSR_PMU_##r, \ + MBOX_SET_FLAG_SEL_MASK, \ + (u64)-1, NHMEX_M_##r) + +/* NHM-EX Rbox */ +#define NHMEX_R_MSR_GLOBAL_CTL 0xe00 +#define NHMEX_R_MSR_PMON_CTL0 0xe10 +#define NHMEX_R_MSR_PMON_CNT0 0xe11 +#define NHMEX_R_MSR_OFFSET 0x20 + +#define NHMEX_R_MSR_PORTN_QLX_CFG(n) \ + ((n) < 4 ? (0xe0c + (n)) : (0xe2c + (n) - 4)) +#define NHMEX_R_MSR_PORTN_IPERF_CFG0(n) (0xe04 + (n)) +#define NHMEX_R_MSR_PORTN_IPERF_CFG1(n) (0xe24 + (n)) +#define NHMEX_R_MSR_PORTN_XBR_OFFSET(n) \ + (((n) < 4 ? 0 : 0x10) + (n) * 4) +#define NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) \ + (0xe60 + NHMEX_R_MSR_PORTN_XBR_OFFSET(n)) +#define NHMEX_R_MSR_PORTN_XBR_SET1_MATCH(n) \ + (NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) + 1) +#define NHMEX_R_MSR_PORTN_XBR_SET1_MASK(n) \ + (NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) + 2) +#define NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) \ + (0xe70 + NHMEX_R_MSR_PORTN_XBR_OFFSET(n)) +#define NHMEX_R_MSR_PORTN_XBR_SET2_MATCH(n) \ + (NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) + 1) +#define NHMEX_R_MSR_PORTN_XBR_SET2_MASK(n) \ + (NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) + 2) + +#define NHMEX_R_PMON_CTL_EN (1 << 0) +#define NHMEX_R_PMON_CTL_EV_SEL_SHIFT 1 +#define NHMEX_R_PMON_CTL_EV_SEL_MASK \ + (0x1f << NHMEX_R_PMON_CTL_EV_SEL_SHIFT) +#define NHMEX_R_PMON_CTL_PMI_EN (1 << 6) +#define NHMEX_R_PMON_RAW_EVENT_MASK NHMEX_R_PMON_CTL_EV_SEL_MASK + +/* NHM-EX Wbox */ +#define NHMEX_W_MSR_GLOBAL_CTL 0xc80 +#define NHMEX_W_MSR_PMON_CNT0 0xc90 +#define NHMEX_W_MSR_PMON_EVT_SEL0 0xc91 +#define NHMEX_W_MSR_PMON_FIXED_CTR 0x394 +#define NHMEX_W_MSR_PMON_FIXED_CTL 0x395 + +#define NHMEX_W_PMON_GLOBAL_FIXED_EN (1ULL << 31) + struct intel_uncore_ops; struct intel_uncore_pmu; struct intel_uncore_box; @@ -178,6 +367,7 @@ struct intel_uncore_type { unsigned msr_offset; unsigned num_shared_regs:8; unsigned single_fixed:1; + unsigned pair_ctr_ctl:1; struct event_constraint unconstrainted; struct event_constraint *constraints; struct intel_uncore_pmu *pmus; @@ -213,7 +403,7 @@ struct intel_uncore_pmu { struct intel_uncore_extra_reg { raw_spinlock_t lock; - u64 config1; + u64 config, config1, config2; atomic_t ref; }; @@ -323,14 +513,16 @@ unsigned uncore_msr_fixed_ctr(struct intel_uncore_box *box) static inline unsigned uncore_msr_event_ctl(struct intel_uncore_box *box, int idx) { - return idx + box->pmu->type->event_ctl + + return box->pmu->type->event_ctl + + (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) + box->pmu->type->msr_offset * box->pmu->pmu_idx; } static inline unsigned uncore_msr_perf_ctr(struct intel_uncore_box *box, int idx) { - return idx + box->pmu->type->perf_ctr + + return box->pmu->type->perf_ctr + + (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) + box->pmu->type->msr_offset * box->pmu->pmu_idx; } @@ -422,3 +614,8 @@ static inline void uncore_box_init(struct intel_uncore_box *box) box->pmu->type->ops->init_box(box); } } + +static inline bool uncore_box_is_fake(struct intel_uncore_box *box) +{ + return (box->phys_id < 0); +} diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 4185797..ed858e9 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -944,7 +944,7 @@ void __init e820_reserve_resources(void) for (i = 0; i < e820_saved.nr_map; i++) { struct e820entry *entry = &e820_saved.map[i]; firmware_map_add_early(entry->addr, - entry->addr + entry->size - 1, + entry->addr + entry->size, e820_type_to_string(entry->type)); } } diff --git a/arch/x86/platform/olpc/olpc-xo1-pm.c b/arch/x86/platform/olpc/olpc-xo1-pm.c index 0ce8616c..d75582d 100644 --- a/arch/x86/platform/olpc/olpc-xo1-pm.c +++ b/arch/x86/platform/olpc/olpc-xo1-pm.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -51,16 +52,11 @@ EXPORT_SYMBOL_GPL(olpc_xo1_pm_wakeup_clear); static int xo1_power_state_enter(suspend_state_t pm_state) { unsigned long saved_sci_mask; - int r; /* Only STR is supported */ if (pm_state != PM_SUSPEND_MEM) return -EINVAL; - r = olpc_ec_cmd(EC_SET_SCI_INHIBIT, NULL, 0, NULL, 0); - if (r) - return r; - /* * Save SCI mask (this gets lost since PM1_EN is used as a mask for * wakeup events, which is not necessarily the same event set) @@ -76,16 +72,6 @@ static int xo1_power_state_enter(suspend_state_t pm_state) /* Restore SCI mask (using dword access to CS5536_PM1_EN) */ outl(saved_sci_mask, acpi_base + CS5536_PM1_STS); - /* Tell the EC to stop inhibiting SCIs */ - olpc_ec_cmd(EC_SET_SCI_INHIBIT_RELEASE, NULL, 0, NULL, 0); - - /* - * Tell the wireless module to restart USB communication. - * Must be done twice. - */ - olpc_ec_cmd(EC_WAKE_UP_WLAN, NULL, 0, NULL, 0); - olpc_ec_cmd(EC_WAKE_UP_WLAN, NULL, 0, NULL, 0); - return 0; } diff --git a/arch/x86/platform/olpc/olpc-xo1-sci.c b/arch/x86/platform/olpc/olpc-xo1-sci.c index 04b8c73..63d4aa4 100644 --- a/arch/x86/platform/olpc/olpc-xo1-sci.c +++ b/arch/x86/platform/olpc/olpc-xo1-sci.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include diff --git a/arch/x86/platform/olpc/olpc-xo15-sci.c b/arch/x86/platform/olpc/olpc-xo15-sci.c index 599be49..2fdca25 100644 --- a/arch/x86/platform/olpc/olpc-xo15-sci.c +++ b/arch/x86/platform/olpc/olpc-xo15-sci.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include diff --git a/arch/x86/platform/olpc/olpc.c b/arch/x86/platform/olpc/olpc.c index a4bee53..2737608 100644 --- a/arch/x86/platform/olpc/olpc.c +++ b/arch/x86/platform/olpc/olpc.c @@ -14,14 +14,13 @@ #include #include #include -#include #include #include #include #include #include -#include #include +#include #include #include @@ -31,17 +30,6 @@ struct olpc_platform_t olpc_platform_info; EXPORT_SYMBOL_GPL(olpc_platform_info); -static DEFINE_SPINLOCK(ec_lock); - -/* debugfs interface to EC commands */ -#define EC_MAX_CMD_ARGS (5 + 1) /* cmd byte + 5 args */ -#define EC_MAX_CMD_REPLY (8) - -static struct dentry *ec_debugfs_dir; -static DEFINE_MUTEX(ec_debugfs_cmd_lock); -static unsigned char ec_debugfs_resp[EC_MAX_CMD_REPLY]; -static unsigned int ec_debugfs_resp_bytes; - /* EC event mask to be applied during suspend (defining wakeup sources). */ static u16 ec_wakeup_mask; @@ -125,16 +113,13 @@ static int __wait_on_obf(unsigned int line, unsigned int port, int desired) * . Unfortunately, while * OpenFirmware's source is available, the EC's is not. */ -int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen, - unsigned char *outbuf, size_t outlen) +static int olpc_xo1_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, + size_t outlen, void *arg) { - unsigned long flags; int ret = -EIO; int i; int restarts = 0; - spin_lock_irqsave(&ec_lock, flags); - /* Clear OBF */ for (i = 0; i < 10 && (obf_status(0x6c) == 1); i++) inb(0x68); @@ -198,10 +183,8 @@ restart: ret = 0; err: - spin_unlock_irqrestore(&ec_lock, flags); return ret; } -EXPORT_SYMBOL_GPL(olpc_ec_cmd); void olpc_ec_wakeup_set(u16 value) { @@ -280,96 +263,6 @@ int olpc_ec_sci_query(u16 *sci_value) } EXPORT_SYMBOL_GPL(olpc_ec_sci_query); -static ssize_t ec_debugfs_cmd_write(struct file *file, const char __user *buf, - size_t size, loff_t *ppos) -{ - int i, m; - unsigned char ec_cmd[EC_MAX_CMD_ARGS]; - unsigned int ec_cmd_int[EC_MAX_CMD_ARGS]; - char cmdbuf[64]; - int ec_cmd_bytes; - - mutex_lock(&ec_debugfs_cmd_lock); - - size = simple_write_to_buffer(cmdbuf, sizeof(cmdbuf), ppos, buf, size); - - m = sscanf(cmdbuf, "%x:%u %x %x %x %x %x", &ec_cmd_int[0], - &ec_debugfs_resp_bytes, - &ec_cmd_int[1], &ec_cmd_int[2], &ec_cmd_int[3], - &ec_cmd_int[4], &ec_cmd_int[5]); - if (m < 2 || ec_debugfs_resp_bytes > EC_MAX_CMD_REPLY) { - /* reset to prevent overflow on read */ - ec_debugfs_resp_bytes = 0; - - printk(KERN_DEBUG "olpc-ec: bad ec cmd: " - "cmd:response-count [arg1 [arg2 ...]]\n"); - size = -EINVAL; - goto out; - } - - /* convert scanf'd ints to char */ - ec_cmd_bytes = m - 2; - for (i = 0; i <= ec_cmd_bytes; i++) - ec_cmd[i] = ec_cmd_int[i]; - - printk(KERN_DEBUG "olpc-ec: debugfs cmd 0x%02x with %d args " - "%02x %02x %02x %02x %02x, want %d returns\n", - ec_cmd[0], ec_cmd_bytes, ec_cmd[1], ec_cmd[2], ec_cmd[3], - ec_cmd[4], ec_cmd[5], ec_debugfs_resp_bytes); - - olpc_ec_cmd(ec_cmd[0], (ec_cmd_bytes == 0) ? NULL : &ec_cmd[1], - ec_cmd_bytes, ec_debugfs_resp, ec_debugfs_resp_bytes); - - printk(KERN_DEBUG "olpc-ec: response " - "%02x %02x %02x %02x %02x %02x %02x %02x (%d bytes expected)\n", - ec_debugfs_resp[0], ec_debugfs_resp[1], ec_debugfs_resp[2], - ec_debugfs_resp[3], ec_debugfs_resp[4], ec_debugfs_resp[5], - ec_debugfs_resp[6], ec_debugfs_resp[7], ec_debugfs_resp_bytes); - -out: - mutex_unlock(&ec_debugfs_cmd_lock); - return size; -} - -static ssize_t ec_debugfs_cmd_read(struct file *file, char __user *buf, - size_t size, loff_t *ppos) -{ - unsigned int i, r; - char *rp; - char respbuf[64]; - - mutex_lock(&ec_debugfs_cmd_lock); - rp = respbuf; - rp += sprintf(rp, "%02x", ec_debugfs_resp[0]); - for (i = 1; i < ec_debugfs_resp_bytes; i++) - rp += sprintf(rp, ", %02x", ec_debugfs_resp[i]); - mutex_unlock(&ec_debugfs_cmd_lock); - rp += sprintf(rp, "\n"); - - r = rp - respbuf; - return simple_read_from_buffer(buf, size, ppos, respbuf, r); -} - -static const struct file_operations ec_debugfs_genops = { - .write = ec_debugfs_cmd_write, - .read = ec_debugfs_cmd_read, -}; - -static void setup_debugfs(void) -{ - ec_debugfs_dir = debugfs_create_dir("olpc-ec", 0); - if (ec_debugfs_dir == ERR_PTR(-ENODEV)) - return; - - debugfs_create_file("cmd", 0600, ec_debugfs_dir, NULL, - &ec_debugfs_genops); -} - -static int olpc_ec_suspend(void) -{ - return olpc_ec_mask_write(ec_wakeup_mask); -} - static bool __init check_ofw_architecture(struct device_node *root) { const char *olpc_arch; @@ -424,8 +317,59 @@ static int __init add_xo1_platform_devices(void) return 0; } -static struct syscore_ops olpc_syscore_ops = { - .suspend = olpc_ec_suspend, +static int olpc_xo1_ec_probe(struct platform_device *pdev) +{ + /* get the EC revision */ + olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, + (unsigned char *) &olpc_platform_info.ecver, 1); + + /* EC version 0x5f adds support for wide SCI mask */ + if (olpc_platform_info.ecver >= 0x5f) + olpc_platform_info.flags |= OLPC_F_EC_WIDE_SCI; + + pr_info("OLPC board revision %s%X (EC=%x)\n", + ((olpc_platform_info.boardrev & 0xf) < 8) ? "pre" : "", + olpc_platform_info.boardrev >> 4, + olpc_platform_info.ecver); + + return 0; +} +static int olpc_xo1_ec_suspend(struct platform_device *pdev) +{ + olpc_ec_mask_write(ec_wakeup_mask); + + /* + * Squelch SCIs while suspended. This is a fix for + * . + */ + return olpc_ec_cmd(EC_SET_SCI_INHIBIT, NULL, 0, NULL, 0); +} + +static int olpc_xo1_ec_resume(struct platform_device *pdev) +{ + /* Tell the EC to stop inhibiting SCIs */ + olpc_ec_cmd(EC_SET_SCI_INHIBIT_RELEASE, NULL, 0, NULL, 0); + + /* + * Tell the wireless module to restart USB communication. + * Must be done twice. + */ + olpc_ec_cmd(EC_WAKE_UP_WLAN, NULL, 0, NULL, 0); + olpc_ec_cmd(EC_WAKE_UP_WLAN, NULL, 0, NULL, 0); + + return 0; +} + +static struct olpc_ec_driver ec_xo1_driver = { + .probe = olpc_xo1_ec_probe, + .suspend = olpc_xo1_ec_suspend, + .resume = olpc_xo1_ec_resume, + .ec_cmd = olpc_xo1_ec_cmd, +}; + +static struct olpc_ec_driver ec_xo1_5_driver = { + .probe = olpc_xo1_ec_probe, + .ec_cmd = olpc_xo1_ec_cmd, }; static int __init olpc_init(void) @@ -435,16 +379,17 @@ static int __init olpc_init(void) if (!olpc_ofw_present() || !platform_detect()) return 0; - spin_lock_init(&ec_lock); + /* register the XO-1 and 1.5-specific EC handler */ + if (olpc_platform_info.boardrev < olpc_board_pre(0xd0)) /* XO-1 */ + olpc_ec_driver_register(&ec_xo1_driver, NULL); + else + olpc_ec_driver_register(&ec_xo1_5_driver, NULL); + platform_device_register_simple("olpc-ec", -1, NULL, 0); /* assume B1 and above models always have a DCON */ if (olpc_board_at_least(olpc_board(0xb1))) olpc_platform_info.flags |= OLPC_F_DCON; - /* get the EC revision */ - olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, - (unsigned char *) &olpc_platform_info.ecver, 1); - #ifdef CONFIG_PCI_OLPC /* If the VSA exists let it emulate PCI, if not emulate in kernel. * XO-1 only. */ @@ -452,14 +397,6 @@ static int __init olpc_init(void) !cs5535_has_vsa2()) x86_init.pci.arch_init = pci_olpc_init; #endif - /* EC version 0x5f adds support for wide SCI mask */ - if (olpc_platform_info.ecver >= 0x5f) - olpc_platform_info.flags |= OLPC_F_EC_WIDE_SCI; - - printk(KERN_INFO "OLPC board revision %s%X (EC=%x)\n", - ((olpc_platform_info.boardrev & 0xf) < 8) ? "pre" : "", - olpc_platform_info.boardrev >> 4, - olpc_platform_info.ecver); if (olpc_platform_info.boardrev < olpc_board_pre(0xd0)) { /* XO-1 */ r = add_xo1_platform_devices(); @@ -467,9 +404,6 @@ static int __init olpc_init(void) return r; } - register_syscore_ops(&olpc_syscore_ops); - setup_debugfs(); - return 0; } diff --git a/arch/x86/um/asm/ptrace.h b/arch/x86/um/asm/ptrace.h index 950dfb7..e72cd0d 100644 --- a/arch/x86/um/asm/ptrace.h +++ b/arch/x86/um/asm/ptrace.h @@ -30,10 +30,10 @@ #define profile_pc(regs) PT_REGS_IP(regs) #define UPT_RESTART_SYSCALL(r) (UPT_IP(r) -= 2) -#define UPT_SET_SYSCALL_RETURN(r, res) (UPT_AX(r) = (res)) +#define PT_REGS_SET_SYSCALL_RETURN(r, res) (PT_REGS_AX(r) = (res)) -static inline long regs_return_value(struct uml_pt_regs *regs) +static inline long regs_return_value(struct pt_regs *regs) { - return UPT_AX(regs); + return PT_REGS_AX(regs); } #endif /* __UM_X86_PTRACE_H */ diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 8a3f835..8ed64cf 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -7,6 +7,7 @@ config ZONE_DMA config XTENSA def_bool y select HAVE_IDE + select GENERIC_ATOMIC64 select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW select GENERIC_CPU_DEVICES diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c index 816e6d0..05b3f09 100644 --- a/arch/xtensa/kernel/syscall.c +++ b/arch/xtensa/kernel/syscall.c @@ -44,7 +44,7 @@ asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg) unsigned long ret; long err; - err = do_shmat(shmid, shmaddr, shmflg, &ret); + err = do_shmat(shmid, shmaddr, shmflg, &ret, SHMLBA); if (err) return err; return (long)ret; diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c index b17885a..5a74c53 100644 --- a/arch/xtensa/mm/fault.c +++ b/arch/xtensa/mm/fault.c @@ -44,6 +44,7 @@ void do_page_fault(struct pt_regs *regs) int is_write, is_exec; int fault; + unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE; info.si_code = SEGV_MAPERR; @@ -71,6 +72,7 @@ void do_page_fault(struct pt_regs *regs) address, exccause, regs->pc, is_write? "w":"", is_exec? "x":""); #endif +retry: down_read(&mm->mmap_sem); vma = find_vma(mm, address); @@ -93,6 +95,7 @@ good_area: if (is_write) { if (!(vma->vm_flags & VM_WRITE)) goto bad_area; + flags |= FAULT_FLAG_WRITE; } else if (is_exec) { if (!(vma->vm_flags & VM_EXEC)) goto bad_area; @@ -104,7 +107,11 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ - fault = handle_mm_fault(mm, vma, address, is_write ? FAULT_FLAG_WRITE : 0); + fault = handle_mm_fault(mm, vma, address, flags); + + if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) + return; + if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) goto out_of_memory; @@ -112,10 +119,22 @@ good_area: goto do_sigbus; BUG(); } - if (fault & VM_FAULT_MAJOR) - current->maj_flt++; - else - current->min_flt++; + if (flags & FAULT_FLAG_ALLOW_RETRY) { + if (fault & VM_FAULT_MAJOR) + current->maj_flt++; + else + current->min_flt++; + if (fault & VM_FAULT_RETRY) { + flags &= ~FAULT_FLAG_ALLOW_RETRY; + + /* No need to up_read(&mm->mmap_sem) as we would + * have already released it in __lock_page_or_retry + * in mm/filemap.c. + */ + + goto retry; + } + } up_read(&mm->mmap_sem); return; diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index e7dee61..f3b44a6 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -31,27 +31,6 @@ EXPORT_SYMBOL_GPL(blkcg_root); static struct blkcg_policy *blkcg_policy[BLKCG_MAX_POLS]; -struct blkcg *cgroup_to_blkcg(struct cgroup *cgroup) -{ - return container_of(cgroup_subsys_state(cgroup, blkio_subsys_id), - struct blkcg, css); -} -EXPORT_SYMBOL_GPL(cgroup_to_blkcg); - -static struct blkcg *task_blkcg(struct task_struct *tsk) -{ - return container_of(task_subsys_state(tsk, blkio_subsys_id), - struct blkcg, css); -} - -struct blkcg *bio_blkcg(struct bio *bio) -{ - if (bio && bio->bi_css) - return container_of(bio->bi_css, struct blkcg, css); - return task_blkcg(current); -} -EXPORT_SYMBOL_GPL(bio_blkcg); - static bool blkcg_policy_enabled(struct request_queue *q, const struct blkcg_policy *pol) { @@ -84,6 +63,7 @@ static void blkg_free(struct blkcg_gq *blkg) kfree(pd); } + blk_exit_rl(&blkg->rl); kfree(blkg); } @@ -91,16 +71,18 @@ static void blkg_free(struct blkcg_gq *blkg) * blkg_alloc - allocate a blkg * @blkcg: block cgroup the new blkg is associated with * @q: request_queue the new blkg is associated with + * @gfp_mask: allocation mask to use * * Allocate a new blkg assocating @blkcg and @q. */ -static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q) +static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q, + gfp_t gfp_mask) { struct blkcg_gq *blkg; int i; /* alloc and init base part */ - blkg = kzalloc_node(sizeof(*blkg), GFP_ATOMIC, q->node); + blkg = kzalloc_node(sizeof(*blkg), gfp_mask, q->node); if (!blkg) return NULL; @@ -109,6 +91,13 @@ static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q) blkg->blkcg = blkcg; blkg->refcnt = 1; + /* root blkg uses @q->root_rl, init rl only for !root blkgs */ + if (blkcg != &blkcg_root) { + if (blk_init_rl(&blkg->rl, q, gfp_mask)) + goto err_free; + blkg->rl.blkg = blkg; + } + for (i = 0; i < BLKCG_MAX_POLS; i++) { struct blkcg_policy *pol = blkcg_policy[i]; struct blkg_policy_data *pd; @@ -117,11 +106,9 @@ static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q) continue; /* alloc per-policy data and attach it to blkg */ - pd = kzalloc_node(pol->pd_size, GFP_ATOMIC, q->node); - if (!pd) { - blkg_free(blkg); - return NULL; - } + pd = kzalloc_node(pol->pd_size, gfp_mask, q->node); + if (!pd) + goto err_free; blkg->pd[i] = pd; pd->blkg = blkg; @@ -132,6 +119,10 @@ static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q) } return blkg; + +err_free: + blkg_free(blkg); + return NULL; } static struct blkcg_gq *__blkg_lookup(struct blkcg *blkcg, @@ -175,9 +166,13 @@ struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, struct request_queue *q) } EXPORT_SYMBOL_GPL(blkg_lookup); +/* + * If @new_blkg is %NULL, this function tries to allocate a new one as + * necessary using %GFP_ATOMIC. @new_blkg is always consumed on return. + */ static struct blkcg_gq *__blkg_lookup_create(struct blkcg *blkcg, - struct request_queue *q) - __releases(q->queue_lock) __acquires(q->queue_lock) + struct request_queue *q, + struct blkcg_gq *new_blkg) { struct blkcg_gq *blkg; int ret; @@ -189,24 +184,26 @@ static struct blkcg_gq *__blkg_lookup_create(struct blkcg *blkcg, blkg = __blkg_lookup(blkcg, q); if (blkg) { rcu_assign_pointer(blkcg->blkg_hint, blkg); - return blkg; + goto out_free; } /* blkg holds a reference to blkcg */ - if (!css_tryget(&blkcg->css)) - return ERR_PTR(-EINVAL); + if (!css_tryget(&blkcg->css)) { + blkg = ERR_PTR(-EINVAL); + goto out_free; + } /* allocate */ - ret = -ENOMEM; - blkg = blkg_alloc(blkcg, q); - if (unlikely(!blkg)) - goto err_put; + if (!new_blkg) { + new_blkg = blkg_alloc(blkcg, q, GFP_ATOMIC); + if (unlikely(!new_blkg)) { + blkg = ERR_PTR(-ENOMEM); + goto out_put; + } + } + blkg = new_blkg; /* insert */ - ret = radix_tree_preload(GFP_ATOMIC); - if (ret) - goto err_free; - spin_lock(&blkcg->lock); ret = radix_tree_insert(&blkcg->blkg_tree, q->id, blkg); if (likely(!ret)) { @@ -215,15 +212,15 @@ static struct blkcg_gq *__blkg_lookup_create(struct blkcg *blkcg, } spin_unlock(&blkcg->lock); - radix_tree_preload_end(); - if (!ret) return blkg; -err_free: - blkg_free(blkg); -err_put: + + blkg = ERR_PTR(ret); +out_put: css_put(&blkcg->css); - return ERR_PTR(ret); +out_free: + blkg_free(new_blkg); + return blkg; } struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg, @@ -235,7 +232,7 @@ struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg, */ if (unlikely(blk_queue_bypass(q))) return ERR_PTR(blk_queue_dead(q) ? -EINVAL : -EBUSY); - return __blkg_lookup_create(blkcg, q); + return __blkg_lookup_create(blkcg, q, NULL); } EXPORT_SYMBOL_GPL(blkg_lookup_create); @@ -313,6 +310,38 @@ void __blkg_release(struct blkcg_gq *blkg) } EXPORT_SYMBOL_GPL(__blkg_release); +/* + * The next function used by blk_queue_for_each_rl(). It's a bit tricky + * because the root blkg uses @q->root_rl instead of its own rl. + */ +struct request_list *__blk_queue_next_rl(struct request_list *rl, + struct request_queue *q) +{ + struct list_head *ent; + struct blkcg_gq *blkg; + + /* + * Determine the current blkg list_head. The first entry is + * root_rl which is off @q->blkg_list and mapped to the head. + */ + if (rl == &q->root_rl) { + ent = &q->blkg_list; + } else { + blkg = container_of(rl, struct blkcg_gq, rl); + ent = &blkg->q_node; + } + + /* walk to the next list_head, skip root blkcg */ + ent = ent->next; + if (ent == &q->root_blkg->q_node) + ent = ent->next; + if (ent == &q->blkg_list) + return NULL; + + blkg = container_of(ent, struct blkcg_gq, q_node); + return &blkg->rl; +} + static int blkcg_reset_stats(struct cgroup *cgroup, struct cftype *cftype, u64 val) { @@ -734,24 +763,36 @@ int blkcg_activate_policy(struct request_queue *q, struct blkcg_gq *blkg; struct blkg_policy_data *pd, *n; int cnt = 0, ret; + bool preloaded; if (blkcg_policy_enabled(q, pol)) return 0; + /* preallocations for root blkg */ + blkg = blkg_alloc(&blkcg_root, q, GFP_KERNEL); + if (!blkg) + return -ENOMEM; + + preloaded = !radix_tree_preload(GFP_KERNEL); + blk_queue_bypass_start(q); /* make sure the root blkg exists and count the existing blkgs */ spin_lock_irq(q->queue_lock); rcu_read_lock(); - blkg = __blkg_lookup_create(&blkcg_root, q); + blkg = __blkg_lookup_create(&blkcg_root, q, blkg); rcu_read_unlock(); + if (preloaded) + radix_tree_preload_end(); + if (IS_ERR(blkg)) { ret = PTR_ERR(blkg); goto out_unlock; } q->root_blkg = blkg; + q->root_rl.blkg = blkg; list_for_each_entry(blkg, &q->blkg_list, q_node) cnt++; diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 8ac457c..2459730 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -17,6 +17,7 @@ #include #include #include +#include /* Max limits for throttle policy */ #define THROTL_IOPS_MAX UINT_MAX @@ -93,6 +94,8 @@ struct blkcg_gq { struct list_head q_node; struct hlist_node blkcg_node; struct blkcg *blkcg; + /* request allocation list for this blkcg-q pair */ + struct request_list rl; /* reference count */ int refcnt; @@ -120,8 +123,6 @@ struct blkcg_policy { extern struct blkcg blkcg_root; -struct blkcg *cgroup_to_blkcg(struct cgroup *cgroup); -struct blkcg *bio_blkcg(struct bio *bio); struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, struct request_queue *q); struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg, struct request_queue *q); @@ -160,6 +161,25 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol, void blkg_conf_finish(struct blkg_conf_ctx *ctx); +static inline struct blkcg *cgroup_to_blkcg(struct cgroup *cgroup) +{ + return container_of(cgroup_subsys_state(cgroup, blkio_subsys_id), + struct blkcg, css); +} + +static inline struct blkcg *task_blkcg(struct task_struct *tsk) +{ + return container_of(task_subsys_state(tsk, blkio_subsys_id), + struct blkcg, css); +} + +static inline struct blkcg *bio_blkcg(struct bio *bio) +{ + if (bio && bio->bi_css) + return container_of(bio->bi_css, struct blkcg, css); + return task_blkcg(current); +} + /** * blkg_to_pdata - get policy private data * @blkg: blkg of interest @@ -234,6 +254,95 @@ static inline void blkg_put(struct blkcg_gq *blkg) } /** + * blk_get_rl - get request_list to use + * @q: request_queue of interest + * @bio: bio which will be attached to the allocated request (may be %NULL) + * + * The caller wants to allocate a request from @q to use for @bio. Find + * the request_list to use and obtain a reference on it. Should be called + * under queue_lock. This function is guaranteed to return non-%NULL + * request_list. + */ +static inline struct request_list *blk_get_rl(struct request_queue *q, + struct bio *bio) +{ + struct blkcg *blkcg; + struct blkcg_gq *blkg; + + rcu_read_lock(); + + blkcg = bio_blkcg(bio); + + /* bypass blkg lookup and use @q->root_rl directly for root */ + if (blkcg == &blkcg_root) + goto root_rl; + + /* + * Try to use blkg->rl. blkg lookup may fail under memory pressure + * or if either the blkcg or queue is going away. Fall back to + * root_rl in such cases. + */ + blkg = blkg_lookup_create(blkcg, q); + if (unlikely(IS_ERR(blkg))) + goto root_rl; + + blkg_get(blkg); + rcu_read_unlock(); + return &blkg->rl; +root_rl: + rcu_read_unlock(); + return &q->root_rl; +} + +/** + * blk_put_rl - put request_list + * @rl: request_list to put + * + * Put the reference acquired by blk_get_rl(). Should be called under + * queue_lock. + */ +static inline void blk_put_rl(struct request_list *rl) +{ + /* root_rl may not have blkg set */ + if (rl->blkg && rl->blkg->blkcg != &blkcg_root) + blkg_put(rl->blkg); +} + +/** + * blk_rq_set_rl - associate a request with a request_list + * @rq: request of interest + * @rl: target request_list + * + * Associate @rq with @rl so that accounting and freeing can know the + * request_list @rq came from. + */ +static inline void blk_rq_set_rl(struct request *rq, struct request_list *rl) +{ + rq->rl = rl; +} + +/** + * blk_rq_rl - return the request_list a request came from + * @rq: request of interest + * + * Return the request_list @rq is allocated from. + */ +static inline struct request_list *blk_rq_rl(struct request *rq) +{ + return rq->rl; +} + +struct request_list *__blk_queue_next_rl(struct request_list *rl, + struct request_queue *q); +/** + * blk_queue_for_each_rl - iterate through all request_lists of a request_queue + * + * Should be used under queue_lock. + */ +#define blk_queue_for_each_rl(rl, q) \ + for ((rl) = &(q)->root_rl; (rl); (rl) = __blk_queue_next_rl((rl), (q))) + +/** * blkg_stat_add - add a value to a blkg_stat * @stat: target blkg_stat * @val: value to add @@ -351,6 +460,7 @@ static inline void blkg_rwstat_reset(struct blkg_rwstat *rwstat) #else /* CONFIG_BLK_CGROUP */ struct cgroup; +struct blkcg; struct blkg_policy_data { }; @@ -361,8 +471,6 @@ struct blkcg_gq { struct blkcg_policy { }; -static inline struct blkcg *cgroup_to_blkcg(struct cgroup *cgroup) { return NULL; } -static inline struct blkcg *bio_blkcg(struct bio *bio) { return NULL; } static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, void *key) { return NULL; } static inline int blkcg_init_queue(struct request_queue *q) { return 0; } static inline void blkcg_drain_queue(struct request_queue *q) { } @@ -374,6 +482,9 @@ static inline int blkcg_activate_policy(struct request_queue *q, static inline void blkcg_deactivate_policy(struct request_queue *q, const struct blkcg_policy *pol) { } +static inline struct blkcg *cgroup_to_blkcg(struct cgroup *cgroup) { return NULL; } +static inline struct blkcg *bio_blkcg(struct bio *bio) { return NULL; } + static inline struct blkg_policy_data *blkg_to_pd(struct blkcg_gq *blkg, struct blkcg_policy *pol) { return NULL; } static inline struct blkcg_gq *pd_to_blkg(struct blkg_policy_data *pd) { return NULL; } @@ -381,5 +492,14 @@ static inline char *blkg_path(struct blkcg_gq *blkg) { return NULL; } static inline void blkg_get(struct blkcg_gq *blkg) { } static inline void blkg_put(struct blkcg_gq *blkg) { } +static inline struct request_list *blk_get_rl(struct request_queue *q, + struct bio *bio) { return &q->root_rl; } +static inline void blk_put_rl(struct request_list *rl) { } +static inline void blk_rq_set_rl(struct request *rq, struct request_list *rl) { } +static inline struct request_list *blk_rq_rl(struct request *rq) { return &rq->q->root_rl; } + +#define blk_queue_for_each_rl(rl, q) \ + for ((rl) = &(q)->root_rl; (rl); (rl) = NULL) + #endif /* CONFIG_BLK_CGROUP */ #endif /* _BLK_CGROUP_H */ diff --git a/block/blk-core.c b/block/blk-core.c index 93eb3e4..4b4dbdf 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -387,7 +387,7 @@ void blk_drain_queue(struct request_queue *q, bool drain_all) if (!list_empty(&q->queue_head) && q->request_fn) __blk_run_queue(q); - drain |= q->rq.elvpriv; + drain |= q->nr_rqs_elvpriv; /* * Unfortunately, requests are queued at and tracked from @@ -397,7 +397,7 @@ void blk_drain_queue(struct request_queue *q, bool drain_all) if (drain_all) { drain |= !list_empty(&q->queue_head); for (i = 0; i < 2; i++) { - drain |= q->rq.count[i]; + drain |= q->nr_rqs[i]; drain |= q->in_flight[i]; drain |= !list_empty(&q->flush_queue[i]); } @@ -416,9 +416,14 @@ void blk_drain_queue(struct request_queue *q, bool drain_all) * left with hung waiters. We need to wake up those waiters. */ if (q->request_fn) { + struct request_list *rl; + spin_lock_irq(q->queue_lock); - for (i = 0; i < ARRAY_SIZE(q->rq.wait); i++) - wake_up_all(&q->rq.wait[i]); + + blk_queue_for_each_rl(rl, q) + for (i = 0; i < ARRAY_SIZE(rl->wait); i++) + wake_up_all(&rl->wait[i]); + spin_unlock_irq(q->queue_lock); } } @@ -517,28 +522,33 @@ void blk_cleanup_queue(struct request_queue *q) } EXPORT_SYMBOL(blk_cleanup_queue); -static int blk_init_free_list(struct request_queue *q) +int blk_init_rl(struct request_list *rl, struct request_queue *q, + gfp_t gfp_mask) { - struct request_list *rl = &q->rq; - if (unlikely(rl->rq_pool)) return 0; + rl->q = q; rl->count[BLK_RW_SYNC] = rl->count[BLK_RW_ASYNC] = 0; rl->starved[BLK_RW_SYNC] = rl->starved[BLK_RW_ASYNC] = 0; - rl->elvpriv = 0; init_waitqueue_head(&rl->wait[BLK_RW_SYNC]); init_waitqueue_head(&rl->wait[BLK_RW_ASYNC]); rl->rq_pool = mempool_create_node(BLKDEV_MIN_RQ, mempool_alloc_slab, - mempool_free_slab, request_cachep, q->node); - + mempool_free_slab, request_cachep, + gfp_mask, q->node); if (!rl->rq_pool) return -ENOMEM; return 0; } +void blk_exit_rl(struct request_list *rl) +{ + if (rl->rq_pool) + mempool_destroy(rl->rq_pool); +} + struct request_queue *blk_alloc_queue(gfp_t gfp_mask) { return blk_alloc_queue_node(gfp_mask, -1); @@ -680,7 +690,7 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn, if (!q) return NULL; - if (blk_init_free_list(q)) + if (blk_init_rl(&q->root_rl, q, GFP_KERNEL)) return NULL; q->request_fn = rfn; @@ -722,15 +732,15 @@ bool blk_get_queue(struct request_queue *q) } EXPORT_SYMBOL(blk_get_queue); -static inline void blk_free_request(struct request_queue *q, struct request *rq) +static inline void blk_free_request(struct request_list *rl, struct request *rq) { if (rq->cmd_flags & REQ_ELVPRIV) { - elv_put_request(q, rq); + elv_put_request(rl->q, rq); if (rq->elv.icq) put_io_context(rq->elv.icq->ioc); } - mempool_free(rq, q->rq.rq_pool); + mempool_free(rq, rl->rq_pool); } /* @@ -767,18 +777,23 @@ static void ioc_set_batching(struct request_queue *q, struct io_context *ioc) ioc->last_waited = jiffies; } -static void __freed_request(struct request_queue *q, int sync) +static void __freed_request(struct request_list *rl, int sync) { - struct request_list *rl = &q->rq; + struct request_queue *q = rl->q; - if (rl->count[sync] < queue_congestion_off_threshold(q)) + /* + * bdi isn't aware of blkcg yet. As all async IOs end up root + * blkcg anyway, just use root blkcg state. + */ + if (rl == &q->root_rl && + rl->count[sync] < queue_congestion_off_threshold(q)) blk_clear_queue_congested(q, sync); if (rl->count[sync] + 1 <= q->nr_requests) { if (waitqueue_active(&rl->wait[sync])) wake_up(&rl->wait[sync]); - blk_clear_queue_full(q, sync); + blk_clear_rl_full(rl, sync); } } @@ -786,19 +801,20 @@ static void __freed_request(struct request_queue *q, int sync) * A request has just been released. Account for it, update the full and * congestion status, wake up any waiters. Called under q->queue_lock. */ -static void freed_request(struct request_queue *q, unsigned int flags) +static void freed_request(struct request_list *rl, unsigned int flags) { - struct request_list *rl = &q->rq; + struct request_queue *q = rl->q; int sync = rw_is_sync(flags); + q->nr_rqs[sync]--; rl->count[sync]--; if (flags & REQ_ELVPRIV) - rl->elvpriv--; + q->nr_rqs_elvpriv--; - __freed_request(q, sync); + __freed_request(rl, sync); if (unlikely(rl->starved[sync ^ 1])) - __freed_request(q, sync ^ 1); + __freed_request(rl, sync ^ 1); } /* @@ -837,8 +853,8 @@ static struct io_context *rq_ioc(struct bio *bio) } /** - * get_request - get a free request - * @q: request_queue to allocate request from + * __get_request - get a free request + * @rl: request list to allocate from * @rw_flags: RW and SYNC flags * @bio: bio to allocate request for (can be %NULL) * @gfp_mask: allocation mask @@ -850,20 +866,16 @@ static struct io_context *rq_ioc(struct bio *bio) * Returns %NULL on failure, with @q->queue_lock held. * Returns !%NULL on success, with @q->queue_lock *not held*. */ -static struct request *get_request(struct request_queue *q, int rw_flags, - struct bio *bio, gfp_t gfp_mask) +static struct request *__get_request(struct request_list *rl, int rw_flags, + struct bio *bio, gfp_t gfp_mask) { + struct request_queue *q = rl->q; struct request *rq; - struct request_list *rl = &q->rq; - struct elevator_type *et; - struct io_context *ioc; + struct elevator_type *et = q->elevator->type; + struct io_context *ioc = rq_ioc(bio); struct io_cq *icq = NULL; const bool is_sync = rw_is_sync(rw_flags) != 0; - bool retried = false; int may_queue; -retry: - et = q->elevator->type; - ioc = rq_ioc(bio); if (unlikely(blk_queue_dead(q))) return NULL; @@ -875,28 +887,14 @@ retry: if (rl->count[is_sync]+1 >= queue_congestion_on_threshold(q)) { if (rl->count[is_sync]+1 >= q->nr_requests) { /* - * We want ioc to record batching state. If it's - * not already there, creating a new one requires - * dropping queue_lock, which in turn requires - * retesting conditions to avoid queue hang. - */ - if (!ioc && !retried) { - spin_unlock_irq(q->queue_lock); - create_io_context(gfp_mask, q->node); - spin_lock_irq(q->queue_lock); - retried = true; - goto retry; - } - - /* * The queue will fill after this allocation, so set * it as full, and mark this process as "batching". * This process will be allowed to complete a batch of * requests, others will be blocked. */ - if (!blk_queue_full(q, is_sync)) { + if (!blk_rl_full(rl, is_sync)) { ioc_set_batching(q, ioc); - blk_set_queue_full(q, is_sync); + blk_set_rl_full(rl, is_sync); } else { if (may_queue != ELV_MQUEUE_MUST && !ioc_batching(q, ioc)) { @@ -909,7 +907,12 @@ retry: } } } - blk_set_queue_congested(q, is_sync); + /* + * bdi isn't aware of blkcg yet. As all async IOs end up + * root blkcg anyway, just use root blkcg state. + */ + if (rl == &q->root_rl) + blk_set_queue_congested(q, is_sync); } /* @@ -920,6 +923,7 @@ retry: if (rl->count[is_sync] >= (3 * q->nr_requests / 2)) return NULL; + q->nr_rqs[is_sync]++; rl->count[is_sync]++; rl->starved[is_sync] = 0; @@ -935,7 +939,7 @@ retry: */ if (blk_rq_should_init_elevator(bio) && !blk_queue_bypass(q)) { rw_flags |= REQ_ELVPRIV; - rl->elvpriv++; + q->nr_rqs_elvpriv++; if (et->icq_cache && ioc) icq = ioc_lookup_icq(ioc, q); } @@ -945,22 +949,19 @@ retry: spin_unlock_irq(q->queue_lock); /* allocate and init request */ - rq = mempool_alloc(q->rq.rq_pool, gfp_mask); + rq = mempool_alloc(rl->rq_pool, gfp_mask); if (!rq) goto fail_alloc; blk_rq_init(q, rq); + blk_rq_set_rl(rq, rl); rq->cmd_flags = rw_flags | REQ_ALLOCED; /* init elvpriv */ if (rw_flags & REQ_ELVPRIV) { if (unlikely(et->icq_cache && !icq)) { - create_io_context(gfp_mask, q->node); - ioc = rq_ioc(bio); - if (!ioc) - goto fail_elvpriv; - - icq = ioc_create_icq(ioc, q, gfp_mask); + if (ioc) + icq = ioc_create_icq(ioc, q, gfp_mask); if (!icq) goto fail_elvpriv; } @@ -1000,7 +1001,7 @@ fail_elvpriv: rq->elv.icq = NULL; spin_lock_irq(q->queue_lock); - rl->elvpriv--; + q->nr_rqs_elvpriv--; spin_unlock_irq(q->queue_lock); goto out; @@ -1013,7 +1014,7 @@ fail_alloc: * queue, but this is pretty rare. */ spin_lock_irq(q->queue_lock); - freed_request(q, rw_flags); + freed_request(rl, rw_flags); /* * in the very unlikely event that allocation failed and no @@ -1029,56 +1030,58 @@ rq_starved: } /** - * get_request_wait - get a free request with retry + * get_request - get a free request * @q: request_queue to allocate request from * @rw_flags: RW and SYNC flags * @bio: bio to allocate request for (can be %NULL) + * @gfp_mask: allocation mask * - * Get a free request from @q. This function keeps retrying under memory - * pressure and fails iff @q is dead. + * Get a free request from @q. If %__GFP_WAIT is set in @gfp_mask, this + * function keeps retrying under memory pressure and fails iff @q is dead. * * Must be callled with @q->queue_lock held and, * Returns %NULL on failure, with @q->queue_lock held. * Returns !%NULL on success, with @q->queue_lock *not held*. */ -static struct request *get_request_wait(struct request_queue *q, int rw_flags, - struct bio *bio) +static struct request *get_request(struct request_queue *q, int rw_flags, + struct bio *bio, gfp_t gfp_mask) { const bool is_sync = rw_is_sync(rw_flags) != 0; + DEFINE_WAIT(wait); + struct request_list *rl; struct request *rq; - rq = get_request(q, rw_flags, bio, GFP_NOIO); - while (!rq) { - DEFINE_WAIT(wait); - struct request_list *rl = &q->rq; - - if (unlikely(blk_queue_dead(q))) - return NULL; + rl = blk_get_rl(q, bio); /* transferred to @rq on success */ +retry: + rq = __get_request(rl, rw_flags, bio, gfp_mask); + if (rq) + return rq; - prepare_to_wait_exclusive(&rl->wait[is_sync], &wait, - TASK_UNINTERRUPTIBLE); + if (!(gfp_mask & __GFP_WAIT) || unlikely(blk_queue_dead(q))) { + blk_put_rl(rl); + return NULL; + } - trace_block_sleeprq(q, bio, rw_flags & 1); + /* wait on @rl and retry */ + prepare_to_wait_exclusive(&rl->wait[is_sync], &wait, + TASK_UNINTERRUPTIBLE); - spin_unlock_irq(q->queue_lock); - io_schedule(); + trace_block_sleeprq(q, bio, rw_flags & 1); - /* - * After sleeping, we become a "batching" process and - * will be able to allocate at least one request, and - * up to a big batch of them for a small period time. - * See ioc_batching, ioc_set_batching - */ - create_io_context(GFP_NOIO, q->node); - ioc_set_batching(q, current->io_context); + spin_unlock_irq(q->queue_lock); + io_schedule(); - spin_lock_irq(q->queue_lock); - finish_wait(&rl->wait[is_sync], &wait); + /* + * After sleeping, we become a "batching" process and will be able + * to allocate at least one request, and up to a big batch of them + * for a small period time. See ioc_batching, ioc_set_batching + */ + ioc_set_batching(q, current->io_context); - rq = get_request(q, rw_flags, bio, GFP_NOIO); - }; + spin_lock_irq(q->queue_lock); + finish_wait(&rl->wait[is_sync], &wait); - return rq; + goto retry; } struct request *blk_get_request(struct request_queue *q, int rw, gfp_t gfp_mask) @@ -1087,11 +1090,11 @@ struct request *blk_get_request(struct request_queue *q, int rw, gfp_t gfp_mask) BUG_ON(rw != READ && rw != WRITE); + /* create ioc upfront */ + create_io_context(gfp_mask, q->node); + spin_lock_irq(q->queue_lock); - if (gfp_mask & __GFP_WAIT) - rq = get_request_wait(q, rw, NULL); - else - rq = get_request(q, rw, NULL, gfp_mask); + rq = get_request(q, rw, NULL, gfp_mask); if (!rq) spin_unlock_irq(q->queue_lock); /* q->queue_lock is unlocked at this point */ @@ -1248,12 +1251,14 @@ void __blk_put_request(struct request_queue *q, struct request *req) */ if (req->cmd_flags & REQ_ALLOCED) { unsigned int flags = req->cmd_flags; + struct request_list *rl = blk_rq_rl(req); BUG_ON(!list_empty(&req->queuelist)); BUG_ON(!hlist_unhashed(&req->hash)); - blk_free_request(q, req); - freed_request(q, flags); + blk_free_request(rl, req); + freed_request(rl, flags); + blk_put_rl(rl); } } EXPORT_SYMBOL_GPL(__blk_put_request); @@ -1481,7 +1486,7 @@ get_rq: * Grab a free request. This is might sleep but can not fail. * Returns with the queue unlocked. */ - req = get_request_wait(q, rw_flags, bio); + req = get_request(q, rw_flags, bio, GFP_NOIO); if (unlikely(!req)) { bio_endio(bio, -ENODEV); /* @q is dead */ goto out_unlock; @@ -1702,6 +1707,14 @@ generic_make_request_checks(struct bio *bio) goto end_io; } + /* + * Various block parts want %current->io_context and lazy ioc + * allocation ends up trading a lot of pain for a small amount of + * memory. Just allocate it upfront. This may fail and block + * layer knows how to live with it. + */ + create_io_context(GFP_ATOMIC, q->node); + if (blk_throtl_bio(q, bio)) return false; /* throttled, will be resubmitted later */ @@ -2896,23 +2909,47 @@ static void queue_unplugged(struct request_queue *q, unsigned int depth, } -static void flush_plug_callbacks(struct blk_plug *plug) +static void flush_plug_callbacks(struct blk_plug *plug, bool from_schedule) { LIST_HEAD(callbacks); - if (list_empty(&plug->cb_list)) - return; + while (!list_empty(&plug->cb_list)) { + list_splice_init(&plug->cb_list, &callbacks); - list_splice_init(&plug->cb_list, &callbacks); - - while (!list_empty(&callbacks)) { - struct blk_plug_cb *cb = list_first_entry(&callbacks, + while (!list_empty(&callbacks)) { + struct blk_plug_cb *cb = list_first_entry(&callbacks, struct blk_plug_cb, list); - list_del(&cb->list); - cb->callback(cb); + list_del(&cb->list); + cb->callback(cb, from_schedule); + } + } +} + +struct blk_plug_cb *blk_check_plugged(blk_plug_cb_fn unplug, void *data, + int size) +{ + struct blk_plug *plug = current->plug; + struct blk_plug_cb *cb; + + if (!plug) + return NULL; + + list_for_each_entry(cb, &plug->cb_list, list) + if (cb->callback == unplug && cb->data == data) + return cb; + + /* Not currently on the callback list */ + BUG_ON(size < sizeof(*cb)); + cb = kzalloc(size, GFP_ATOMIC); + if (cb) { + cb->data = data; + cb->callback = unplug; + list_add(&cb->list, &plug->cb_list); } + return cb; } +EXPORT_SYMBOL(blk_check_plugged); void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule) { @@ -2924,7 +2961,7 @@ void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule) BUG_ON(plug->magic != PLUG_MAGIC); - flush_plug_callbacks(plug); + flush_plug_callbacks(plug, from_schedule); if (list_empty(&plug->list)) return; diff --git a/block/blk-ioc.c b/block/blk-ioc.c index 893b800..fab4cdd 100644 --- a/block/blk-ioc.c +++ b/block/blk-ioc.c @@ -244,6 +244,7 @@ int create_task_io_context(struct task_struct *task, gfp_t gfp_flags, int node) /* initialize */ atomic_long_set(&ioc->refcount, 1); + atomic_set(&ioc->nr_tasks, 1); atomic_set(&ioc->active_ref, 1); spin_lock_init(&ioc->lock); INIT_RADIX_TREE(&ioc->icq_tree, GFP_ATOMIC | __GFP_HIGH); diff --git a/block/blk-settings.c b/block/blk-settings.c index d3234fc..565a678 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -143,8 +143,7 @@ void blk_set_stacking_limits(struct queue_limits *lim) lim->discard_zeroes_data = 1; lim->max_segments = USHRT_MAX; lim->max_hw_sectors = UINT_MAX; - - lim->max_sectors = BLK_DEF_MAX_SECTORS; + lim->max_sectors = UINT_MAX; } EXPORT_SYMBOL(blk_set_stacking_limits); diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index aa41b47..9628b29 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -40,7 +40,7 @@ static ssize_t queue_requests_show(struct request_queue *q, char *page) static ssize_t queue_requests_store(struct request_queue *q, const char *page, size_t count) { - struct request_list *rl = &q->rq; + struct request_list *rl; unsigned long nr; int ret; @@ -55,6 +55,9 @@ queue_requests_store(struct request_queue *q, const char *page, size_t count) q->nr_requests = nr; blk_queue_congestion_threshold(q); + /* congestion isn't cgroup aware and follows root blkcg for now */ + rl = &q->root_rl; + if (rl->count[BLK_RW_SYNC] >= queue_congestion_on_threshold(q)) blk_set_queue_congested(q, BLK_RW_SYNC); else if (rl->count[BLK_RW_SYNC] < queue_congestion_off_threshold(q)) @@ -65,19 +68,22 @@ queue_requests_store(struct request_queue *q, const char *page, size_t count) else if (rl->count[BLK_RW_ASYNC] < queue_congestion_off_threshold(q)) blk_clear_queue_congested(q, BLK_RW_ASYNC); - if (rl->count[BLK_RW_SYNC] >= q->nr_requests) { - blk_set_queue_full(q, BLK_RW_SYNC); - } else { - blk_clear_queue_full(q, BLK_RW_SYNC); - wake_up(&rl->wait[BLK_RW_SYNC]); + blk_queue_for_each_rl(rl, q) { + if (rl->count[BLK_RW_SYNC] >= q->nr_requests) { + blk_set_rl_full(rl, BLK_RW_SYNC); + } else { + blk_clear_rl_full(rl, BLK_RW_SYNC); + wake_up(&rl->wait[BLK_RW_SYNC]); + } + + if (rl->count[BLK_RW_ASYNC] >= q->nr_requests) { + blk_set_rl_full(rl, BLK_RW_ASYNC); + } else { + blk_clear_rl_full(rl, BLK_RW_ASYNC); + wake_up(&rl->wait[BLK_RW_ASYNC]); + } } - if (rl->count[BLK_RW_ASYNC] >= q->nr_requests) { - blk_set_queue_full(q, BLK_RW_ASYNC); - } else { - blk_clear_queue_full(q, BLK_RW_ASYNC); - wake_up(&rl->wait[BLK_RW_ASYNC]); - } spin_unlock_irq(q->queue_lock); return ret; } @@ -476,7 +482,6 @@ static void blk_release_queue(struct kobject *kobj) { struct request_queue *q = container_of(kobj, struct request_queue, kobj); - struct request_list *rl = &q->rq; blk_sync_queue(q); @@ -489,8 +494,7 @@ static void blk_release_queue(struct kobject *kobj) elevator_exit(q->elevator); } - if (rl->rq_pool) - mempool_destroy(rl->rq_pool); + blk_exit_rl(&q->root_rl); if (q->queue_tags) __blk_queue_free_tags(q); diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 5b06595..e287c19 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -1123,9 +1123,6 @@ bool blk_throtl_bio(struct request_queue *q, struct bio *bio) goto out; } - /* bio_associate_current() needs ioc, try creating */ - create_io_context(GFP_ATOMIC, q->node); - /* * A throtl_grp pointer retrieved under rcu can be used to access * basic fields like stats and io rates. If a group has no rules, diff --git a/block/blk.h b/block/blk.h index 85f6ae4..2a0ea32 100644 --- a/block/blk.h +++ b/block/blk.h @@ -18,6 +18,9 @@ static inline void __blk_get_queue(struct request_queue *q) kobject_get(&q->kobj); } +int blk_init_rl(struct request_list *rl, struct request_queue *q, + gfp_t gfp_mask); +void blk_exit_rl(struct request_list *rl); void init_request_from_bio(struct request *req, struct bio *bio); void blk_rq_bio_prep(struct request_queue *q, struct request *rq, struct bio *bio); @@ -33,7 +36,6 @@ bool __blk_end_bidi_request(struct request *rq, int error, void blk_rq_timed_out_timer(unsigned long data); void blk_delete_timer(struct request *); void blk_add_timer(struct request *); -void __generic_unplug_device(struct request_queue *); /* * Internal atomic flags for request handling diff --git a/block/bsg-lib.c b/block/bsg-lib.c index 7ad49c8..deee61f 100644 --- a/block/bsg-lib.c +++ b/block/bsg-lib.c @@ -243,56 +243,3 @@ int bsg_setup_queue(struct device *dev, struct request_queue *q, return 0; } EXPORT_SYMBOL_GPL(bsg_setup_queue); - -/** - * bsg_remove_queue - Deletes the bsg dev from the q - * @q: the request_queue that is to be torn down. - * - * Notes: - * Before unregistering the queue empty any requests that are blocked - */ -void bsg_remove_queue(struct request_queue *q) -{ - struct request *req; /* block request */ - int counts; /* totals for request_list count and starved */ - - if (!q) - return; - - /* Stop taking in new requests */ - spin_lock_irq(q->queue_lock); - blk_stop_queue(q); - - /* drain all requests in the queue */ - while (1) { - /* need the lock to fetch a request - * this may fetch the same reqeust as the previous pass - */ - req = blk_fetch_request(q); - /* save requests in use and starved */ - counts = q->rq.count[0] + q->rq.count[1] + - q->rq.starved[0] + q->rq.starved[1]; - spin_unlock_irq(q->queue_lock); - /* any requests still outstanding? */ - if (counts == 0) - break; - - /* This may be the same req as the previous iteration, - * always send the blk_end_request_all after a prefetch. - * It is not okay to not end the request because the - * prefetch started the request. - */ - if (req) { - /* return -ENXIO to indicate that this queue is - * going away - */ - req->errors = -ENXIO; - blk_end_request_all(req, -ENXIO); - } - - msleep(200); /* allow bsg to possibly finish */ - spin_lock_irq(q->queue_lock); - } - bsg_unregister_queue(q); -} -EXPORT_SYMBOL_GPL(bsg_remove_queue); diff --git a/block/genhd.c b/block/genhd.c index 9cf5583..cac7366 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -154,7 +154,7 @@ struct hd_struct *disk_part_iter_next(struct disk_part_iter *piter) part = rcu_dereference(ptbl->part[piter->idx]); if (!part) continue; - if (!part->nr_sects && + if (!part_nr_sects_read(part) && !(piter->flags & DISK_PITER_INCL_EMPTY) && !(piter->flags & DISK_PITER_INCL_EMPTY_PART0 && piter->idx == 0)) @@ -191,7 +191,7 @@ EXPORT_SYMBOL_GPL(disk_part_iter_exit); static inline int sector_in_part(struct hd_struct *part, sector_t sector) { return part->start_sect <= sector && - sector < part->start_sect + part->nr_sects; + sector < part->start_sect + part_nr_sects_read(part); } /** @@ -769,8 +769,8 @@ void __init printk_all_partitions(void) printk("%s%s %10llu %s %s", is_part0 ? "" : " ", bdevt_str(part_devt(part), devt_buf), - (unsigned long long)part->nr_sects >> 1, - disk_name(disk, part->partno, name_buf), + (unsigned long long)part_nr_sects_read(part) >> 1 + , disk_name(disk, part->partno, name_buf), uuid_buf); if (is_part0) { if (disk->driverfs_dev != NULL && @@ -862,7 +862,7 @@ static int show_partition(struct seq_file *seqf, void *v) while ((part = disk_part_iter_next(&piter))) seq_printf(seqf, "%4d %7d %10llu %s\n", MAJOR(part_devt(part)), MINOR(part_devt(part)), - (unsigned long long)part->nr_sects >> 1, + (unsigned long long)part_nr_sects_read(part) >> 1, disk_name(sgp, part->partno, buf)); disk_part_iter_exit(&piter); @@ -1268,6 +1268,16 @@ struct gendisk *alloc_disk_node(int minors, int node_id) } disk->part_tbl->part[0] = &disk->part0; + /* + * set_capacity() and get_capacity() currently don't use + * seqcounter to read/update the part0->nr_sects. Still init + * the counter as we can read the sectors in IO submission + * patch using seqence counters. + * + * TODO: Ideally set_capacity() and get_capacity() should be + * converted to make use of bd_mutex and sequence counters. + */ + seqcount_init(&disk->part0.nr_sects_seq); hd_ref_init(&disk->part0); disk->minors = minors; diff --git a/block/ioctl.c b/block/ioctl.c index ba15b2d..4476e0e8 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -13,7 +13,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user { struct block_device *bdevp; struct gendisk *disk; - struct hd_struct *part; + struct hd_struct *part, *lpart; struct blkpg_ioctl_arg a; struct blkpg_partition p; struct disk_part_iter piter; @@ -36,8 +36,8 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user case BLKPG_ADD_PARTITION: start = p.start >> 9; length = p.length >> 9; - /* check for fit in a hd_struct */ - if (sizeof(sector_t) == sizeof(long) && + /* check for fit in a hd_struct */ + if (sizeof(sector_t) == sizeof(long) && sizeof(long long) > sizeof(long)) { long pstart = start, plength = length; if (pstart != start || plength != length @@ -92,6 +92,59 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user bdput(bdevp); return 0; + case BLKPG_RESIZE_PARTITION: + start = p.start >> 9; + /* new length of partition in bytes */ + length = p.length >> 9; + /* check for fit in a hd_struct */ + if (sizeof(sector_t) == sizeof(long) && + sizeof(long long) > sizeof(long)) { + long pstart = start, plength = length; + if (pstart != start || plength != length + || pstart < 0 || plength < 0) + return -EINVAL; + } + part = disk_get_part(disk, partno); + if (!part) + return -ENXIO; + bdevp = bdget(part_devt(part)); + if (!bdevp) { + disk_put_part(part); + return -ENOMEM; + } + mutex_lock(&bdevp->bd_mutex); + mutex_lock_nested(&bdev->bd_mutex, 1); + if (start != part->start_sect) { + mutex_unlock(&bdevp->bd_mutex); + mutex_unlock(&bdev->bd_mutex); + bdput(bdevp); + disk_put_part(part); + return -EINVAL; + } + /* overlap? */ + disk_part_iter_init(&piter, disk, + DISK_PITER_INCL_EMPTY); + while ((lpart = disk_part_iter_next(&piter))) { + if (lpart->partno != partno && + !(start + length <= lpart->start_sect || + start >= lpart->start_sect + lpart->nr_sects) + ) { + disk_part_iter_exit(&piter); + mutex_unlock(&bdevp->bd_mutex); + mutex_unlock(&bdev->bd_mutex); + bdput(bdevp); + disk_put_part(part); + return -EBUSY; + } + } + disk_part_iter_exit(&piter); + part_nr_sects_write(part, (sector_t)length); + i_size_write(bdevp->bd_inode, p.length); + mutex_unlock(&bdevp->bd_mutex); + mutex_unlock(&bdev->bd_mutex); + bdput(bdevp); + disk_put_part(part); + return 0; default: return -EINVAL; } diff --git a/block/partition-generic.c b/block/partition-generic.c index 6df5d69..f1d1451 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -84,7 +84,7 @@ ssize_t part_size_show(struct device *dev, struct device_attribute *attr, char *buf) { struct hd_struct *p = dev_to_part(dev); - return sprintf(buf, "%llu\n",(unsigned long long)p->nr_sects); + return sprintf(buf, "%llu\n",(unsigned long long)part_nr_sects_read(p)); } static ssize_t part_ro_show(struct device *dev, @@ -294,6 +294,8 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno, err = -ENOMEM; goto out_free; } + + seqcount_init(&p->nr_sects_seq); pdev = part_to_dev(p); p->start_sect = start; diff --git a/drivers/Kconfig b/drivers/Kconfig index 805c432..ece958d 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -112,6 +112,8 @@ source "drivers/auxdisplay/Kconfig" source "drivers/uio/Kconfig" +source "drivers/vfio/Kconfig" + source "drivers/vlynq/Kconfig" source "drivers/virtio/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index bd36f09..5b42184 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -60,6 +60,7 @@ obj-$(CONFIG_ATM) += atm/ obj-$(CONFIG_FUSION) += message/ obj-y += firewire/ obj-$(CONFIG_UIO) += uio/ +obj-$(CONFIG_VFIO) += vfio/ obj-y += cdrom/ obj-y += auxdisplay/ obj-$(CONFIG_PCCARD) += pcmcia/ diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index ac6a5be..bfaa5cb 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -184,10 +184,8 @@ struct arasan_cf_dev { /* pointer to ata_host structure */ struct ata_host *host; - /* clk structure, only if HAVE_CLK is defined */ -#ifdef CONFIG_HAVE_CLK + /* clk structure */ struct clk *clk; -#endif /* physical base address of controller */ dma_addr_t pbase; @@ -312,13 +310,11 @@ static int cf_init(struct arasan_cf_dev *acdev) unsigned long flags; int ret = 0; -#ifdef CONFIG_HAVE_CLK ret = clk_enable(acdev->clk); if (ret) { dev_dbg(acdev->host->dev, "clock enable failed"); return ret; } -#endif spin_lock_irqsave(&acdev->host->lock, flags); /* configure CF interface clock */ @@ -344,9 +340,7 @@ static void cf_exit(struct arasan_cf_dev *acdev) writel(readl(acdev->vbase + OP_MODE) & ~CFHOST_ENB, acdev->vbase + OP_MODE); spin_unlock_irqrestore(&acdev->host->lock, flags); -#ifdef CONFIG_HAVE_CLK clk_disable(acdev->clk); -#endif } static void dma_callback(void *dev) @@ -828,13 +822,11 @@ static int __devinit arasan_cf_probe(struct platform_device *pdev) return -ENOMEM; } -#ifdef CONFIG_HAVE_CLK acdev->clk = clk_get(&pdev->dev, NULL); if (IS_ERR(acdev->clk)) { dev_warn(&pdev->dev, "Clock not found\n"); return PTR_ERR(acdev->clk); } -#endif /* allocate host */ host = ata_host_alloc(&pdev->dev, 1); @@ -899,9 +891,7 @@ static int __devinit arasan_cf_probe(struct platform_device *pdev) &arasan_cf_sht); free_clk: -#ifdef CONFIG_HAVE_CLK clk_put(acdev->clk); -#endif return ret; } @@ -912,9 +902,7 @@ static int __devexit arasan_cf_remove(struct platform_device *pdev) ata_host_detach(host); cf_exit(acdev); -#ifdef CONFIG_HAVE_CLK clk_put(acdev->clk); -#endif return 0; } diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 24712ad..311be18 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -65,6 +65,8 @@ #include #include #include +#include +#include #include #include #include @@ -4026,7 +4028,7 @@ static int mv_platform_probe(struct platform_device *pdev) struct ata_host *host; struct mv_host_priv *hpriv; struct resource *res; - int n_ports = 0; + int n_ports = 0, irq = 0; int rc; #if defined(CONFIG_HAVE_CLK) int port; @@ -4050,8 +4052,14 @@ static int mv_platform_probe(struct platform_device *pdev) return -EINVAL; /* allocate host */ - mv_platform_data = pdev->dev.platform_data; - n_ports = mv_platform_data->n_ports; + if (pdev->dev.of_node) { + of_property_read_u32(pdev->dev.of_node, "nr-ports", &n_ports); + irq = irq_of_parse_and_map(pdev->dev.of_node, 0); + } else { + mv_platform_data = pdev->dev.platform_data; + n_ports = mv_platform_data->n_ports; + irq = platform_get_irq(pdev, 0); + } host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); @@ -4109,8 +4117,7 @@ static int mv_platform_probe(struct platform_device *pdev) dev_info(&pdev->dev, "slots %u ports %d\n", (unsigned)MV_MAX_Q_DEPTH, host->n_ports); - rc = ata_host_activate(host, platform_get_irq(pdev, 0), mv_interrupt, - IRQF_SHARED, &mv6_sht); + rc = ata_host_activate(host, irq, mv_interrupt, IRQF_SHARED, &mv6_sht); if (!rc) return 0; @@ -4205,15 +4212,24 @@ static int mv_platform_resume(struct platform_device *pdev) #define mv_platform_resume NULL #endif +#ifdef CONFIG_OF +static struct of_device_id mv_sata_dt_ids[] __devinitdata = { + { .compatible = "marvell,orion-sata", }, + {}, +}; +MODULE_DEVICE_TABLE(of, mv_sata_dt_ids); +#endif + static struct platform_driver mv_platform_driver = { - .probe = mv_platform_probe, - .remove = __devexit_p(mv_platform_remove), - .suspend = mv_platform_suspend, - .resume = mv_platform_resume, - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, + .probe = mv_platform_probe, + .remove = __devexit_p(mv_platform_remove), + .suspend = mv_platform_suspend, + .resume = mv_platform_resume, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(mv_sata_dt_ids), + }, }; diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index 9b21469..08b4c52 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -196,6 +196,7 @@ config CMA bool "Contiguous Memory Allocator (EXPERIMENTAL)" depends on HAVE_DMA_CONTIGUOUS && HAVE_MEMBLOCK && EXPERIMENTAL select MIGRATION + select MEMORY_ISOLATION help This enables the Contiguous Memory Allocator which allows drivers to allocate big physically-contiguous blocks of memory for use with diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index d91a3a0..deb4a45 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -156,9 +156,7 @@ static int dev_mkdir(const char *name, umode_t mode) if (!err) /* mark as kernel-created inode */ dentry->d_inode->i_private = &thread; - dput(dentry); - mutex_unlock(&path.dentry->d_inode->i_mutex); - path_put(&path); + done_path_create(&path, dentry); return err; } @@ -218,10 +216,7 @@ static int handle_create(const char *nodename, umode_t mode, struct device *dev) /* mark as kernel-created inode */ dentry->d_inode->i_private = &thread; } - dput(dentry); - - mutex_unlock(&path.dentry->d_inode->i_mutex); - path_put(&path); + done_path_create(&path, dentry); return err; } diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index e54e31b..3fbef01 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -411,7 +411,7 @@ w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused) + mdev->ldev->md.al_offset + mdev->al_tr_pos; if (!drbd_md_sync_page_io(mdev, mdev->ldev, sector, WRITE)) - drbd_chk_io_error(mdev, 1, true); + drbd_chk_io_error(mdev, 1, DRBD_META_IO_ERROR); if (++mdev->al_tr_pos > div_ceil(mdev->act_log->nr_elements, AL_EXTENTS_PT)) @@ -876,7 +876,11 @@ int __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size, unsigned int enr, count = 0; struct lc_element *e; - if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) { + /* this should be an empty REQ_FLUSH */ + if (size == 0) + return 0; + + if (size < 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) { dev_err(DEV, "sector: %llus, size: %d\n", (unsigned long long)sector, size); return 0; diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index fcb956b..ba91b40 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -1096,7 +1096,7 @@ static int bm_rw(struct drbd_conf *mdev, int rw, unsigned flags, unsigned lazy_w if (ctx->error) { dev_alert(DEV, "we had at least one MD IO ERROR during bitmap IO\n"); - drbd_chk_io_error(mdev, 1, true); + drbd_chk_io_error(mdev, 1, DRBD_META_IO_ERROR); err = -EIO; /* ctx->error ? */ } @@ -1212,7 +1212,7 @@ int drbd_bm_write_page(struct drbd_conf *mdev, unsigned int idx) __must_hold(loc wait_until_done_or_disk_failure(mdev, mdev->ldev, &ctx->done); if (ctx->error) - drbd_chk_io_error(mdev, 1, true); + drbd_chk_io_error(mdev, 1, DRBD_META_IO_ERROR); /* that should force detach, so the in memory bitmap will be * gone in a moment as well. */ diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 02f013a..b2ca143 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -813,7 +813,6 @@ enum { SIGNAL_ASENDER, /* whether asender wants to be interrupted */ SEND_PING, /* whether asender should send a ping asap */ - UNPLUG_QUEUED, /* only relevant with kernel 2.4 */ UNPLUG_REMOTE, /* sending a "UnplugRemote" could help */ MD_DIRTY, /* current uuids and flags not yet on disk */ DISCARD_CONCURRENT, /* Set on one node, cleared on the peer! */ @@ -824,7 +823,6 @@ enum { CRASHED_PRIMARY, /* This node was a crashed primary. * Gets cleared when the state.conn * goes into C_CONNECTED state. */ - NO_BARRIER_SUPP, /* underlying block device doesn't implement barriers */ CONSIDER_RESYNC, MD_NO_FUA, /* Users wants us to not use FUA/FLUSH on meta data dev */ @@ -834,6 +832,7 @@ enum { BITMAP_IO_QUEUED, /* Started bitmap IO */ GO_DISKLESS, /* Disk is being detached, on io-error or admin request. */ WAS_IO_ERROR, /* Local disk failed returned IO error */ + FORCE_DETACH, /* Force-detach from local disk, aborting any pending local IO */ RESYNC_AFTER_NEG, /* Resync after online grow after the attach&negotiate finished. */ NET_CONGESTED, /* The data socket is congested */ @@ -851,6 +850,13 @@ enum { AL_SUSPENDED, /* Activity logging is currently suspended. */ AHEAD_TO_SYNC_SOURCE, /* Ahead -> SyncSource queued */ STATE_SENT, /* Do not change state/UUIDs while this is set */ + + CALLBACK_PENDING, /* Whether we have a call_usermodehelper(, UMH_WAIT_PROC) + * pending, from drbd worker context. + * If set, bdi_write_congested() returns true, + * so shrink_page_list() would not recurse into, + * and potentially deadlock on, this drbd worker. + */ }; struct drbd_bitmap; /* opaque for drbd_conf */ @@ -1130,8 +1136,8 @@ struct drbd_conf { int rs_in_flight; /* resync sectors in flight (to proxy, in proxy and from proxy) */ int rs_planed; /* resync sectors already planned */ atomic_t ap_in_flight; /* App sectors in flight (waiting for ack) */ - int peer_max_bio_size; - int local_max_bio_size; + unsigned int peer_max_bio_size; + unsigned int local_max_bio_size; }; static inline struct drbd_conf *minor_to_mdev(unsigned int minor) @@ -1435,9 +1441,9 @@ struct bm_extent { * hash table. */ #define HT_SHIFT 8 #define DRBD_MAX_BIO_SIZE (1U<<(9+HT_SHIFT)) -#define DRBD_MAX_BIO_SIZE_SAFE (1 << 12) /* Works always = 4k */ +#define DRBD_MAX_BIO_SIZE_SAFE (1U << 12) /* Works always = 4k */ -#define DRBD_MAX_SIZE_H80_PACKET (1 << 15) /* The old header only allows packets up to 32Kib data */ +#define DRBD_MAX_SIZE_H80_PACKET (1U << 15) /* The old header only allows packets up to 32Kib data */ /* Number of elements in the app_reads_hash */ #define APP_R_HSIZE 15 @@ -1840,12 +1846,20 @@ static inline int drbd_request_state(struct drbd_conf *mdev, return _drbd_request_state(mdev, mask, val, CS_VERBOSE + CS_ORDERED); } +enum drbd_force_detach_flags { + DRBD_IO_ERROR, + DRBD_META_IO_ERROR, + DRBD_FORCE_DETACH, +}; + #define __drbd_chk_io_error(m,f) __drbd_chk_io_error_(m,f, __func__) -static inline void __drbd_chk_io_error_(struct drbd_conf *mdev, int forcedetach, const char *where) +static inline void __drbd_chk_io_error_(struct drbd_conf *mdev, + enum drbd_force_detach_flags forcedetach, + const char *where) { switch (mdev->ldev->dc.on_io_error) { case EP_PASS_ON: - if (!forcedetach) { + if (forcedetach == DRBD_IO_ERROR) { if (__ratelimit(&drbd_ratelimit_state)) dev_err(DEV, "Local IO failed in %s.\n", where); if (mdev->state.disk > D_INCONSISTENT) @@ -1856,6 +1870,8 @@ static inline void __drbd_chk_io_error_(struct drbd_conf *mdev, int forcedetach, case EP_DETACH: case EP_CALL_HELPER: set_bit(WAS_IO_ERROR, &mdev->flags); + if (forcedetach == DRBD_FORCE_DETACH) + set_bit(FORCE_DETACH, &mdev->flags); if (mdev->state.disk > D_FAILED) { _drbd_set_state(_NS(mdev, disk, D_FAILED), CS_HARD, NULL); dev_err(DEV, @@ -1875,7 +1891,7 @@ static inline void __drbd_chk_io_error_(struct drbd_conf *mdev, int forcedetach, */ #define drbd_chk_io_error(m,e,f) drbd_chk_io_error_(m,e,f, __func__) static inline void drbd_chk_io_error_(struct drbd_conf *mdev, - int error, int forcedetach, const char *where) + int error, enum drbd_force_detach_flags forcedetach, const char *where) { if (error) { unsigned long flags; @@ -2405,15 +2421,17 @@ static inline void dec_ap_bio(struct drbd_conf *mdev) int ap_bio = atomic_dec_return(&mdev->ap_bio_cnt); D_ASSERT(ap_bio >= 0); + + if (ap_bio == 0 && test_bit(BITMAP_IO, &mdev->flags)) { + if (!test_and_set_bit(BITMAP_IO_QUEUED, &mdev->flags)) + drbd_queue_work(&mdev->data.work, &mdev->bm_io_work.w); + } + /* this currently does wake_up for every dec_ap_bio! * maybe rather introduce some type of hysteresis? * e.g. (ap_bio == mxb/2 || ap_bio == 0) ? */ if (ap_bio < mxb) wake_up(&mdev->misc_wait); - if (ap_bio == 0 && test_bit(BITMAP_IO, &mdev->flags)) { - if (!test_and_set_bit(BITMAP_IO_QUEUED, &mdev->flags)) - drbd_queue_work(&mdev->data.work, &mdev->bm_io_work.w); - } } static inline int drbd_set_ed_uuid(struct drbd_conf *mdev, u64 val) diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 920ede2..2e0e7fc 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1514,6 +1514,13 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, /* Do not change the order of the if above and the two below... */ if (os.pdsk == D_DISKLESS && ns.pdsk > D_DISKLESS) { /* attach on the peer */ + /* we probably will start a resync soon. + * make sure those things are properly reset. */ + mdev->rs_total = 0; + mdev->rs_failed = 0; + atomic_set(&mdev->rs_pending_cnt, 0); + drbd_rs_cancel_all(mdev); + drbd_send_uuids(mdev); drbd_send_state(mdev, ns); } @@ -1630,9 +1637,24 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, eh = mdev->ldev->dc.on_io_error; was_io_error = test_and_clear_bit(WAS_IO_ERROR, &mdev->flags); - /* Immediately allow completion of all application IO, that waits - for completion from the local disk. */ - tl_abort_disk_io(mdev); + if (was_io_error && eh == EP_CALL_HELPER) + drbd_khelper(mdev, "local-io-error"); + + /* Immediately allow completion of all application IO, + * that waits for completion from the local disk, + * if this was a force-detach due to disk_timeout + * or administrator request (drbdsetup detach --force). + * Do NOT abort otherwise. + * Aborting local requests may cause serious problems, + * if requests are completed to upper layers already, + * and then later the already submitted local bio completes. + * This can cause DMA into former bio pages that meanwhile + * have been re-used for other things. + * So aborting local requests may cause crashes, + * or even worse, silent data corruption. + */ + if (test_and_clear_bit(FORCE_DETACH, &mdev->flags)) + tl_abort_disk_io(mdev); /* current state still has to be D_FAILED, * there is only one way out: to D_DISKLESS, @@ -1653,9 +1675,6 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, drbd_md_sync(mdev); } put_ldev(mdev); - - if (was_io_error && eh == EP_CALL_HELPER) - drbd_khelper(mdev, "local-io-error"); } /* second half of local IO error, failure to attach, @@ -1669,10 +1688,6 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, "ASSERT FAILED: disk is %s while going diskless\n", drbd_disk_str(mdev->state.disk)); - mdev->rs_total = 0; - mdev->rs_failed = 0; - atomic_set(&mdev->rs_pending_cnt, 0); - if (ns.conn >= C_CONNECTED) drbd_send_state(mdev, ns); @@ -2194,7 +2209,8 @@ int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags fl { struct p_sizes p; sector_t d_size, u_size; - int q_order_type, max_bio_size; + int q_order_type; + unsigned int max_bio_size; int ok; if (get_ldev_if_state(mdev, D_NEGOTIATING)) { @@ -2203,7 +2219,7 @@ int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags fl u_size = mdev->ldev->dc.disk_size; q_order_type = drbd_queue_order_type(mdev); max_bio_size = queue_max_hw_sectors(mdev->ldev->backing_bdev->bd_disk->queue) << 9; - max_bio_size = min_t(int, max_bio_size, DRBD_MAX_BIO_SIZE); + max_bio_size = min(max_bio_size, DRBD_MAX_BIO_SIZE); put_ldev(mdev); } else { d_size = 0; @@ -2214,7 +2230,7 @@ int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags fl /* Never allow old drbd (up to 8.3.7) to see more than 32KiB */ if (mdev->agreed_pro_version <= 94) - max_bio_size = min_t(int, max_bio_size, DRBD_MAX_SIZE_H80_PACKET); + max_bio_size = min(max_bio_size, DRBD_MAX_SIZE_H80_PACKET); p.d_size = cpu_to_be64(d_size); p.u_size = cpu_to_be64(u_size); @@ -3541,6 +3557,22 @@ static int drbd_congested(void *congested_data, int bdi_bits) goto out; } + if (test_bit(CALLBACK_PENDING, &mdev->flags)) { + r |= (1 << BDI_async_congested); + /* Without good local data, we would need to read from remote, + * and that would need the worker thread as well, which is + * currently blocked waiting for that usermode helper to + * finish. + */ + if (!get_ldev_if_state(mdev, D_UP_TO_DATE)) + r |= (1 << BDI_sync_congested); + else + put_ldev(mdev); + r &= bdi_bits; + reason = 'c'; + goto out; + } + if (get_ldev(mdev)) { q = bdev_get_queue(mdev->ldev->backing_bdev); r = bdi_congested(&q->backing_dev_info, bdi_bits); @@ -3604,6 +3636,7 @@ struct drbd_conf *drbd_new_device(unsigned int minor) q->backing_dev_info.congested_data = mdev; blk_queue_make_request(q, drbd_make_request); + blk_queue_flush(q, REQ_FLUSH | REQ_FUA); /* Setting the max_hw_sectors to an odd value of 8kibyte here This triggers a max_bio_size message upon first attach or connect */ blk_queue_max_hw_sectors(q, DRBD_MAX_BIO_SIZE_SAFE >> 8); @@ -3870,7 +3903,7 @@ void drbd_md_sync(struct drbd_conf *mdev) if (!drbd_md_sync_page_io(mdev, mdev->ldev, sector, WRITE)) { /* this was a try anyways ... */ dev_err(DEV, "meta data update failed!\n"); - drbd_chk_io_error(mdev, 1, true); + drbd_chk_io_error(mdev, 1, DRBD_META_IO_ERROR); } /* Update mdev->ldev->md.la_size_sect, @@ -3950,9 +3983,9 @@ int drbd_md_read(struct drbd_conf *mdev, struct drbd_backing_dev *bdev) spin_lock_irq(&mdev->req_lock); if (mdev->state.conn < C_CONNECTED) { - int peer; + unsigned int peer; peer = be32_to_cpu(buffer->la_peer_max_bio_size); - peer = max_t(int, peer, DRBD_MAX_BIO_SIZE_SAFE); + peer = max(peer, DRBD_MAX_BIO_SIZE_SAFE); mdev->peer_max_bio_size = peer; } spin_unlock_irq(&mdev->req_lock); diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 6d4de6a..fb9dce8 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -147,6 +147,9 @@ int drbd_khelper(struct drbd_conf *mdev, char *cmd) char *argv[] = {usermode_helper, cmd, mb, NULL }; int ret; + if (current == mdev->worker.task) + set_bit(CALLBACK_PENDING, &mdev->flags); + snprintf(mb, 12, "minor-%d", mdev_to_minor(mdev)); if (get_net_conf(mdev)) { @@ -189,6 +192,9 @@ int drbd_khelper(struct drbd_conf *mdev, char *cmd) usermode_helper, cmd, mb, (ret >> 8) & 0xff, ret); + if (current == mdev->worker.task) + clear_bit(CALLBACK_PENDING, &mdev->flags); + if (ret < 0) /* Ignore any ERRNOs we got. */ ret = 0; @@ -795,8 +801,8 @@ static int drbd_check_al_size(struct drbd_conf *mdev) static void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_bio_size) { struct request_queue * const q = mdev->rq_queue; - int max_hw_sectors = max_bio_size >> 9; - int max_segments = 0; + unsigned int max_hw_sectors = max_bio_size >> 9; + unsigned int max_segments = 0; if (get_ldev_if_state(mdev, D_ATTACHING)) { struct request_queue * const b = mdev->ldev->backing_bdev->bd_disk->queue; @@ -829,7 +835,7 @@ static void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_bio_ void drbd_reconsider_max_bio_size(struct drbd_conf *mdev) { - int now, new, local, peer; + unsigned int now, new, local, peer; now = queue_max_hw_sectors(mdev->rq_queue) << 9; local = mdev->local_max_bio_size; /* Eventually last known value, from volatile memory */ @@ -840,13 +846,14 @@ void drbd_reconsider_max_bio_size(struct drbd_conf *mdev) mdev->local_max_bio_size = local; put_ldev(mdev); } + local = min(local, DRBD_MAX_BIO_SIZE); /* We may ignore peer limits if the peer is modern enough. Because new from 8.3.8 onwards the peer can use multiple BIOs for a single peer_request */ if (mdev->state.conn >= C_CONNECTED) { if (mdev->agreed_pro_version < 94) { - peer = min_t(int, mdev->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET); + peer = min(mdev->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET); /* Correct old drbd (up to 8.3.7) if it believes it can do more than 32KiB */ } else if (mdev->agreed_pro_version == 94) peer = DRBD_MAX_SIZE_H80_PACKET; @@ -854,10 +861,10 @@ void drbd_reconsider_max_bio_size(struct drbd_conf *mdev) peer = DRBD_MAX_BIO_SIZE; } - new = min_t(int, local, peer); + new = min(local, peer); if (mdev->state.role == R_PRIMARY && new < now) - dev_err(DEV, "ASSERT FAILED new < now; (%d < %d)\n", new, now); + dev_err(DEV, "ASSERT FAILED new < now; (%u < %u)\n", new, now); if (new != now) dev_info(DEV, "max BIO size = %u\n", new); @@ -950,6 +957,14 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp * to realize a "hot spare" feature (not that I'd recommend that) */ wait_event(mdev->misc_wait, !atomic_read(&mdev->local_cnt)); + /* make sure there is no leftover from previous force-detach attempts */ + clear_bit(FORCE_DETACH, &mdev->flags); + + /* and no leftover from previously aborted resync or verify, either */ + mdev->rs_total = 0; + mdev->rs_failed = 0; + atomic_set(&mdev->rs_pending_cnt, 0); + /* allocation not in the IO path, cqueue thread context */ nbc = kzalloc(sizeof(struct drbd_backing_dev), GFP_KERNEL); if (!nbc) { @@ -1345,6 +1360,7 @@ static int drbd_nl_detach(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, } if (dt.detach_force) { + set_bit(FORCE_DETACH, &mdev->flags); drbd_force_state(mdev, NS(disk, D_FAILED)); reply->ret_code = SS_SUCCESS; goto out; @@ -1962,9 +1978,11 @@ static int drbd_nl_invalidate(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl int retcode; /* If there is still bitmap IO pending, probably because of a previous - * resync just being finished, wait for it before requesting a new resync. */ + * resync just being finished, wait for it before requesting a new resync. + * Also wait for it's after_state_ch(). */ drbd_suspend_io(mdev); wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); + drbd_flush_workqueue(mdev); retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T), CS_ORDERED); @@ -2003,9 +2021,11 @@ static int drbd_nl_invalidate_peer(struct drbd_conf *mdev, struct drbd_nl_cfg_re int retcode; /* If there is still bitmap IO pending, probably because of a previous - * resync just being finished, wait for it before requesting a new resync. */ + * resync just being finished, wait for it before requesting a new resync. + * Also wait for it's after_state_ch(). */ drbd_suspend_io(mdev); wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); + drbd_flush_workqueue(mdev); retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S), CS_ORDERED); diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 869bada..5496104 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -245,6 +245,9 @@ static int drbd_seq_show(struct seq_file *seq, void *v) mdev->state.role == R_SECONDARY) { seq_printf(seq, "%2d: cs:Unconfigured\n", i); } else { + /* reset mdev->congestion_reason */ + bdi_rw_congested(&mdev->rq_queue->backing_dev_info); + seq_printf(seq, "%2d: cs:%s ro:%s/%s ds:%s/%s %c %c%c%c%c%c%c\n" " ns:%u nr:%u dw:%u dr:%u al:%u bm:%u " diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index ea4836e..c74ca2d 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -277,6 +277,9 @@ static void drbd_pp_free(struct drbd_conf *mdev, struct page *page, int is_net) atomic_t *a = is_net ? &mdev->pp_in_use_by_net : &mdev->pp_in_use; int i; + if (page == NULL) + return; + if (drbd_pp_vacant > (DRBD_MAX_BIO_SIZE/PAGE_SIZE)*minor_count) i = page_chain_free(page); else { @@ -316,7 +319,7 @@ struct drbd_epoch_entry *drbd_alloc_ee(struct drbd_conf *mdev, gfp_t gfp_mask) __must_hold(local) { struct drbd_epoch_entry *e; - struct page *page; + struct page *page = NULL; unsigned nr_pages = (data_size + PAGE_SIZE -1) >> PAGE_SHIFT; if (drbd_insert_fault(mdev, DRBD_FAULT_AL_EE)) @@ -329,9 +332,11 @@ struct drbd_epoch_entry *drbd_alloc_ee(struct drbd_conf *mdev, return NULL; } - page = drbd_pp_alloc(mdev, nr_pages, (gfp_mask & __GFP_WAIT)); - if (!page) - goto fail; + if (data_size) { + page = drbd_pp_alloc(mdev, nr_pages, (gfp_mask & __GFP_WAIT)); + if (!page) + goto fail; + } INIT_HLIST_NODE(&e->collision); e->epoch = NULL; @@ -1270,7 +1275,6 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ data_size -= dgs; - ERR_IF(data_size == 0) return NULL; ERR_IF(data_size & 0x1ff) return NULL; ERR_IF(data_size > DRBD_MAX_BIO_SIZE) return NULL; @@ -1291,6 +1295,9 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __ if (!e) return NULL; + if (!data_size) + return e; + ds = data_size; page = e->pages; page_chain_for_each(page) { @@ -1715,6 +1722,10 @@ static int receive_Data(struct drbd_conf *mdev, enum drbd_packets cmd, unsigned dp_flags = be32_to_cpu(p->dp_flags); rw |= wire_flags_to_bio(mdev, dp_flags); + if (e->pages == NULL) { + D_ASSERT(e->size == 0); + D_ASSERT(dp_flags & DP_FLUSH); + } if (dp_flags & DP_MAY_SET_IN_SYNC) e->flags |= EE_MAY_SET_IN_SYNC; @@ -3801,11 +3812,18 @@ void drbd_free_tl_hash(struct drbd_conf *mdev) mdev->ee_hash = NULL; mdev->ee_hash_s = 0; - /* paranoia code */ - for (h = mdev->tl_hash; h < mdev->tl_hash + mdev->tl_hash_s; h++) - if (h->first) - dev_err(DEV, "ASSERT FAILED tl_hash[%u] == %p, expected NULL\n", - (int)(h - mdev->tl_hash), h->first); + /* We may not have had the chance to wait for all locally pending + * application requests. The hlist_add_fake() prevents access after + * free on master bio completion. */ + for (h = mdev->tl_hash; h < mdev->tl_hash + mdev->tl_hash_s; h++) { + struct drbd_request *req; + struct hlist_node *pos, *n; + hlist_for_each_entry_safe(req, pos, n, h, collision) { + hlist_del_init(&req->collision); + hlist_add_fake(&req->collision); + } + } + kfree(mdev->tl_hash); mdev->tl_hash = NULL; mdev->tl_hash_s = 0; diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 8e93a6a..910335c 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -455,7 +455,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, req->rq_state |= RQ_LOCAL_COMPLETED; req->rq_state &= ~RQ_LOCAL_PENDING; - __drbd_chk_io_error(mdev, false); + __drbd_chk_io_error(mdev, DRBD_IO_ERROR); _req_may_be_done_not_susp(req, m); break; @@ -477,7 +477,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, break; } - __drbd_chk_io_error(mdev, false); + __drbd_chk_io_error(mdev, DRBD_IO_ERROR); goto_queue_for_net_read: @@ -1111,13 +1111,12 @@ void drbd_make_request(struct request_queue *q, struct bio *bio) /* * what we "blindly" assume: */ - D_ASSERT(bio->bi_size > 0); D_ASSERT((bio->bi_size & 0x1ff) == 0); /* to make some things easier, force alignment of requests within the * granularity of our hash tables */ s_enr = bio->bi_sector >> HT_SHIFT; - e_enr = (bio->bi_sector+(bio->bi_size>>9)-1) >> HT_SHIFT; + e_enr = bio->bi_size ? (bio->bi_sector+(bio->bi_size>>9)-1) >> HT_SHIFT : s_enr; if (likely(s_enr == e_enr)) { do { @@ -1275,7 +1274,7 @@ void request_timer_fn(unsigned long data) time_after(now, req->start_time + dt) && !time_in_range(now, mdev->last_reattach_jif, mdev->last_reattach_jif + dt)) { dev_warn(DEV, "Local backing device failed to meet the disk-timeout\n"); - __drbd_chk_io_error(mdev, 1); + __drbd_chk_io_error(mdev, DRBD_FORCE_DETACH); } nt = (time_after(now, req->start_time + et) ? now : req->start_time) + et; spin_unlock_irq(&mdev->req_lock); diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 620c70f..6bce2cc 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -111,7 +111,7 @@ void drbd_endio_read_sec_final(struct drbd_epoch_entry *e) __releases(local) if (list_empty(&mdev->read_ee)) wake_up(&mdev->ee_wait); if (test_bit(__EE_WAS_ERROR, &e->flags)) - __drbd_chk_io_error(mdev, false); + __drbd_chk_io_error(mdev, DRBD_IO_ERROR); spin_unlock_irqrestore(&mdev->req_lock, flags); drbd_queue_work(&mdev->data.work, &e->w); @@ -154,7 +154,7 @@ static void drbd_endio_write_sec_final(struct drbd_epoch_entry *e) __releases(lo : list_empty(&mdev->active_ee); if (test_bit(__EE_WAS_ERROR, &e->flags)) - __drbd_chk_io_error(mdev, false); + __drbd_chk_io_error(mdev, DRBD_IO_ERROR); spin_unlock_irqrestore(&mdev->req_lock, flags); if (is_syncer_req) @@ -1501,14 +1501,6 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) return; } - if (mdev->state.conn < C_AHEAD) { - /* In case a previous resync run was aborted by an IO error/detach on the peer. */ - drbd_rs_cancel_all(mdev); - /* This should be done when we abort the resync. We definitely do not - want to have this for connections going back and forth between - Ahead/Behind and SyncSource/SyncTarget */ - } - if (side == C_SYNC_TARGET) { /* Since application IO was locked out during C_WF_BITMAP_T and C_WF_SYNC_UUID we are still unmodified. Before going to C_SYNC_TARGET diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 553f43a..a7d6347 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -191,6 +191,7 @@ static int print_unex = 1; #include #include #include +#include /* * PS/2 floppies have much slower step rates than regular floppies. @@ -2516,8 +2517,7 @@ static int make_raw_rw_request(void) set_fdc((long)current_req->rq_disk->private_data); raw_cmd = &default_raw_cmd; - raw_cmd->flags = FD_RAW_SPIN | FD_RAW_NEED_DISK | FD_RAW_NEED_DISK | - FD_RAW_NEED_SEEK; + raw_cmd->flags = FD_RAW_SPIN | FD_RAW_NEED_DISK | FD_RAW_NEED_SEEK; raw_cmd->cmd_count = NR_RW; if (rq_data_dir(current_req) == READ) { raw_cmd->flags |= FD_RAW_READ; @@ -4123,7 +4123,7 @@ static struct kobject *floppy_find(dev_t dev, int *part, void *data) return get_disk(disks[drive]); } -static int __init floppy_init(void) +static int __init do_floppy_init(void) { int i, unit, drive; int err, dr; @@ -4338,6 +4338,24 @@ out_put_disk: return err; } +#ifndef MODULE +static __init void floppy_async_init(void *data, async_cookie_t cookie) +{ + do_floppy_init(); +} +#endif + +static int __init floppy_init(void) +{ +#ifdef MODULE + return do_floppy_init(); +#else + /* Don't hold up the bootup by the floppy initialization */ + async_schedule(floppy_async_init, NULL); + return 0; +#endif +} + static const struct io_region { int offset; int size; diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 061427a..d07c9f7 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -154,6 +154,7 @@ static int sock_xmit(struct nbd_device *nbd, int send, void *buf, int size, struct msghdr msg; struct kvec iov; sigset_t blocked, oldset; + unsigned long pflags = current->flags; if (unlikely(!sock)) { dev_err(disk_to_dev(nbd->disk), @@ -167,8 +168,9 @@ static int sock_xmit(struct nbd_device *nbd, int send, void *buf, int size, siginitsetinv(&blocked, sigmask(SIGKILL)); sigprocmask(SIG_SETMASK, &blocked, &oldset); + current->flags |= PF_MEMALLOC; do { - sock->sk->sk_allocation = GFP_NOIO; + sock->sk->sk_allocation = GFP_NOIO | __GFP_MEMALLOC; iov.iov_base = buf; iov.iov_len = size; msg.msg_name = NULL; @@ -214,6 +216,7 @@ static int sock_xmit(struct nbd_device *nbd, int send, void *buf, int size, } while (size > 0); sigprocmask(SIG_SETMASK, &oldset, NULL); + tsk_restore_flags(current, pflags, PF_MEMALLOC); return result; } @@ -405,6 +408,7 @@ static int nbd_do_it(struct nbd_device *nbd) BUG_ON(nbd->magic != NBD_MAGIC); + sk_set_memalloc(nbd->sock->sk); nbd->pid = task_pid_nr(current); ret = device_create_file(disk_to_dev(nbd->disk), &pid_attr); if (ret) { @@ -481,7 +485,7 @@ static void nbd_handle_req(struct nbd_device *nbd, struct request *req) nbd_end_request(req); } else { spin_lock(&nbd->queue_lock); - list_add(&req->queuelist, &nbd->queue_head); + list_add_tail(&req->queuelist, &nbd->queue_head); spin_unlock(&nbd->queue_lock); } diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 8f428a8..9917943 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -55,8 +55,6 @@ #define RBD_MINORS_PER_MAJOR 256 /* max minors per blkdev */ -#define RBD_MAX_MD_NAME_LEN (RBD_MAX_OBJ_NAME_LEN + sizeof(RBD_SUFFIX)) -#define RBD_MAX_POOL_NAME_LEN 64 #define RBD_MAX_SNAP_NAME_LEN 32 #define RBD_MAX_OPT_LEN 1024 @@ -78,13 +76,12 @@ */ struct rbd_image_header { u64 image_size; - char block_name[32]; + char *object_prefix; __u8 obj_order; __u8 crypt_type; __u8 comp_type; struct ceph_snap_context *snapc; size_t snap_names_len; - u64 snap_seq; u32 total_snaps; char *snap_names; @@ -150,7 +147,7 @@ struct rbd_snap { * a single device */ struct rbd_device { - int id; /* blkdev unique id */ + int dev_id; /* blkdev unique id */ int major; /* blkdev assigned major */ struct gendisk *disk; /* blkdev's gendisk and rq */ @@ -163,20 +160,24 @@ struct rbd_device { spinlock_t lock; /* queue lock */ struct rbd_image_header header; - char obj[RBD_MAX_OBJ_NAME_LEN]; /* rbd image name */ - int obj_len; - char obj_md_name[RBD_MAX_MD_NAME_LEN]; /* hdr nm. */ - char pool_name[RBD_MAX_POOL_NAME_LEN]; - int poolid; + char *image_name; + size_t image_name_len; + char *header_name; + char *pool_name; + int pool_id; struct ceph_osd_event *watch_event; struct ceph_osd_request *watch_request; /* protects updating the header */ struct rw_semaphore header_rwsem; - char snap_name[RBD_MAX_SNAP_NAME_LEN]; + /* name of the snapshot this device reads from */ + char *snap_name; + /* id of the snapshot this device reads from */ u64 snap_id; /* current snapshot id */ - int read_only; + /* whether the snap_id this device reads from still exists */ + bool snap_exists; + int read_only; struct list_head node; @@ -201,8 +202,7 @@ static ssize_t rbd_snap_add(struct device *dev, struct device_attribute *attr, const char *buf, size_t count); -static void __rbd_remove_snap_dev(struct rbd_device *rbd_dev, - struct rbd_snap *snap); +static void __rbd_remove_snap_dev(struct rbd_snap *snap); static ssize_t rbd_add(struct bus_type *bus, const char *buf, size_t count); @@ -240,7 +240,7 @@ static void rbd_put_dev(struct rbd_device *rbd_dev) put_device(&rbd_dev->dev); } -static int __rbd_refresh_header(struct rbd_device *rbd_dev); +static int rbd_refresh_header(struct rbd_device *rbd_dev, u64 *hver); static int rbd_open(struct block_device *bdev, fmode_t mode) { @@ -273,9 +273,9 @@ static const struct block_device_operations rbd_bd_ops = { /* * Initialize an rbd client instance. - * We own *opt. + * We own *ceph_opts. */ -static struct rbd_client *rbd_client_create(struct ceph_options *opt, +static struct rbd_client *rbd_client_create(struct ceph_options *ceph_opts, struct rbd_options *rbd_opts) { struct rbd_client *rbdc; @@ -291,10 +291,10 @@ static struct rbd_client *rbd_client_create(struct ceph_options *opt, mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); - rbdc->client = ceph_create_client(opt, rbdc, 0, 0); + rbdc->client = ceph_create_client(ceph_opts, rbdc, 0, 0); if (IS_ERR(rbdc->client)) goto out_mutex; - opt = NULL; /* Now rbdc->client is responsible for opt */ + ceph_opts = NULL; /* Now rbdc->client is responsible for ceph_opts */ ret = ceph_open_session(rbdc->client); if (ret < 0) @@ -317,23 +317,23 @@ out_mutex: mutex_unlock(&ctl_mutex); kfree(rbdc); out_opt: - if (opt) - ceph_destroy_options(opt); + if (ceph_opts) + ceph_destroy_options(ceph_opts); return ERR_PTR(ret); } /* * Find a ceph client with specific addr and configuration. */ -static struct rbd_client *__rbd_client_find(struct ceph_options *opt) +static struct rbd_client *__rbd_client_find(struct ceph_options *ceph_opts) { struct rbd_client *client_node; - if (opt->flags & CEPH_OPT_NOSHARE) + if (ceph_opts->flags & CEPH_OPT_NOSHARE) return NULL; list_for_each_entry(client_node, &rbd_client_list, node) - if (ceph_compare_options(opt, client_node->client) == 0) + if (!ceph_compare_options(ceph_opts, client_node->client)) return client_node; return NULL; } @@ -349,7 +349,7 @@ enum { /* string args above */ }; -static match_table_t rbdopt_tokens = { +static match_table_t rbd_opts_tokens = { {Opt_notify_timeout, "notify_timeout=%d"}, /* int args above */ /* string args above */ @@ -358,11 +358,11 @@ static match_table_t rbdopt_tokens = { static int parse_rbd_opts_token(char *c, void *private) { - struct rbd_options *rbdopt = private; + struct rbd_options *rbd_opts = private; substring_t argstr[MAX_OPT_ARGS]; int token, intval, ret; - token = match_token(c, rbdopt_tokens, argstr); + token = match_token(c, rbd_opts_tokens, argstr); if (token < 0) return -EINVAL; @@ -383,7 +383,7 @@ static int parse_rbd_opts_token(char *c, void *private) switch (token) { case Opt_notify_timeout: - rbdopt->notify_timeout = intval; + rbd_opts->notify_timeout = intval; break; default: BUG_ON(token); @@ -400,7 +400,7 @@ static struct rbd_client *rbd_get_client(const char *mon_addr, char *options) { struct rbd_client *rbdc; - struct ceph_options *opt; + struct ceph_options *ceph_opts; struct rbd_options *rbd_opts; rbd_opts = kzalloc(sizeof(*rbd_opts), GFP_KERNEL); @@ -409,29 +409,29 @@ static struct rbd_client *rbd_get_client(const char *mon_addr, rbd_opts->notify_timeout = RBD_NOTIFY_TIMEOUT_DEFAULT; - opt = ceph_parse_options(options, mon_addr, - mon_addr + mon_addr_len, - parse_rbd_opts_token, rbd_opts); - if (IS_ERR(opt)) { + ceph_opts = ceph_parse_options(options, mon_addr, + mon_addr + mon_addr_len, + parse_rbd_opts_token, rbd_opts); + if (IS_ERR(ceph_opts)) { kfree(rbd_opts); - return ERR_CAST(opt); + return ERR_CAST(ceph_opts); } spin_lock(&rbd_client_list_lock); - rbdc = __rbd_client_find(opt); + rbdc = __rbd_client_find(ceph_opts); if (rbdc) { /* using an existing client */ kref_get(&rbdc->kref); spin_unlock(&rbd_client_list_lock); - ceph_destroy_options(opt); + ceph_destroy_options(ceph_opts); kfree(rbd_opts); return rbdc; } spin_unlock(&rbd_client_list_lock); - rbdc = rbd_client_create(opt, rbd_opts); + rbdc = rbd_client_create(ceph_opts, rbd_opts); if (IS_ERR(rbdc)) kfree(rbd_opts); @@ -480,46 +480,60 @@ static void rbd_coll_release(struct kref *kref) kfree(coll); } +static bool rbd_dev_ondisk_valid(struct rbd_image_header_ondisk *ondisk) +{ + return !memcmp(&ondisk->text, + RBD_HEADER_TEXT, sizeof (RBD_HEADER_TEXT)); +} + /* * Create a new header structure, translate header format from the on-disk * header. */ static int rbd_header_from_disk(struct rbd_image_header *header, struct rbd_image_header_ondisk *ondisk, - u32 allocated_snaps, - gfp_t gfp_flags) + u32 allocated_snaps) { - u32 i, snap_count; + u32 snap_count; - if (memcmp(ondisk, RBD_HEADER_TEXT, sizeof(RBD_HEADER_TEXT))) + if (!rbd_dev_ondisk_valid(ondisk)) return -ENXIO; snap_count = le32_to_cpu(ondisk->snap_count); - if (snap_count > (UINT_MAX - sizeof(struct ceph_snap_context)) - / sizeof (*ondisk)) + if (snap_count > (SIZE_MAX - sizeof(struct ceph_snap_context)) + / sizeof (u64)) return -EINVAL; header->snapc = kmalloc(sizeof(struct ceph_snap_context) + snap_count * sizeof(u64), - gfp_flags); + GFP_KERNEL); if (!header->snapc) return -ENOMEM; - header->snap_names_len = le64_to_cpu(ondisk->snap_names_len); if (snap_count) { + header->snap_names_len = le64_to_cpu(ondisk->snap_names_len); header->snap_names = kmalloc(header->snap_names_len, - gfp_flags); + GFP_KERNEL); if (!header->snap_names) goto err_snapc; header->snap_sizes = kmalloc(snap_count * sizeof(u64), - gfp_flags); + GFP_KERNEL); if (!header->snap_sizes) goto err_names; } else { + WARN_ON(ondisk->snap_names_len); + header->snap_names_len = 0; header->snap_names = NULL; header->snap_sizes = NULL; } - memcpy(header->block_name, ondisk->block_name, + + header->object_prefix = kmalloc(sizeof (ondisk->block_name) + 1, + GFP_KERNEL); + if (!header->object_prefix) + goto err_sizes; + + memcpy(header->object_prefix, ondisk->block_name, sizeof(ondisk->block_name)); + header->object_prefix[sizeof (ondisk->block_name)] = '\0'; header->image_size = le64_to_cpu(ondisk->image_size); header->obj_order = ondisk->options.order; @@ -527,11 +541,13 @@ static int rbd_header_from_disk(struct rbd_image_header *header, header->comp_type = ondisk->options.comp_type; atomic_set(&header->snapc->nref, 1); - header->snap_seq = le64_to_cpu(ondisk->snap_seq); + header->snapc->seq = le64_to_cpu(ondisk->snap_seq); header->snapc->num_snaps = snap_count; header->total_snaps = snap_count; if (snap_count && allocated_snaps == snap_count) { + int i; + for (i = 0; i < snap_count; i++) { header->snapc->snaps[i] = le64_to_cpu(ondisk->snaps[i].id); @@ -540,16 +556,22 @@ static int rbd_header_from_disk(struct rbd_image_header *header, } /* copy snapshot names */ - memcpy(header->snap_names, &ondisk->snaps[i], + memcpy(header->snap_names, &ondisk->snaps[snap_count], header->snap_names_len); } return 0; +err_sizes: + kfree(header->snap_sizes); + header->snap_sizes = NULL; err_names: kfree(header->snap_names); + header->snap_names = NULL; err_snapc: kfree(header->snapc); + header->snapc = NULL; + return -ENOMEM; } @@ -575,52 +597,50 @@ static int snap_by_name(struct rbd_image_header *header, const char *snap_name, return -ENOENT; } -static int rbd_header_set_snap(struct rbd_device *dev, u64 *size) +static int rbd_header_set_snap(struct rbd_device *rbd_dev, u64 *size) { - struct rbd_image_header *header = &dev->header; - struct ceph_snap_context *snapc = header->snapc; - int ret = -ENOENT; - - BUILD_BUG_ON(sizeof (dev->snap_name) < sizeof (RBD_SNAP_HEAD_NAME)); + int ret; - down_write(&dev->header_rwsem); + down_write(&rbd_dev->header_rwsem); - if (!memcmp(dev->snap_name, RBD_SNAP_HEAD_NAME, + if (!memcmp(rbd_dev->snap_name, RBD_SNAP_HEAD_NAME, sizeof (RBD_SNAP_HEAD_NAME))) { - if (header->total_snaps) - snapc->seq = header->snap_seq; - else - snapc->seq = 0; - dev->snap_id = CEPH_NOSNAP; - dev->read_only = 0; + rbd_dev->snap_id = CEPH_NOSNAP; + rbd_dev->snap_exists = false; + rbd_dev->read_only = 0; if (size) - *size = header->image_size; + *size = rbd_dev->header.image_size; } else { - ret = snap_by_name(header, dev->snap_name, &snapc->seq, size); + u64 snap_id = 0; + + ret = snap_by_name(&rbd_dev->header, rbd_dev->snap_name, + &snap_id, size); if (ret < 0) goto done; - dev->snap_id = snapc->seq; - dev->read_only = 1; + rbd_dev->snap_id = snap_id; + rbd_dev->snap_exists = true; + rbd_dev->read_only = 1; } ret = 0; done: - up_write(&dev->header_rwsem); + up_write(&rbd_dev->header_rwsem); return ret; } static void rbd_header_free(struct rbd_image_header *header) { - kfree(header->snapc); - kfree(header->snap_names); + kfree(header->object_prefix); kfree(header->snap_sizes); + kfree(header->snap_names); + ceph_put_snap_context(header->snapc); } /* * get the actual striped segment name, offset and length */ static u64 rbd_get_segment(struct rbd_image_header *header, - const char *block_name, + const char *object_prefix, u64 ofs, u64 len, char *seg_name, u64 *segofs) { @@ -628,7 +648,7 @@ static u64 rbd_get_segment(struct rbd_image_header *header, if (seg_name) snprintf(seg_name, RBD_MAX_SEG_NAME_LEN, - "%s.%012llx", block_name, seg); + "%s.%012llx", object_prefix, seg); ofs = ofs & ((1 << header->obj_order) - 1); len = min_t(u64, len, (1 << header->obj_order) - ofs); @@ -726,9 +746,8 @@ static struct bio *bio_chain_clone(struct bio **old, struct bio **next, * split_bio will BUG_ON if this is not the case */ dout("bio_chain_clone split! total=%d remaining=%d" - "bi_size=%d\n", - (int)total, (int)len-total, - (int)old_chain->bi_size); + "bi_size=%u\n", + total, len - total, old_chain->bi_size); /* split the bio. We'll release it either in the next call, or it will have to be released outside */ @@ -777,22 +796,24 @@ err_out: /* * helpers for osd request op vectors. */ -static int rbd_create_rw_ops(struct ceph_osd_req_op **ops, - int num_ops, - int opcode, - u32 payload_len) -{ - *ops = kzalloc(sizeof(struct ceph_osd_req_op) * (num_ops + 1), - GFP_NOIO); - if (!*ops) - return -ENOMEM; - (*ops)[0].op = opcode; +static struct ceph_osd_req_op *rbd_create_rw_ops(int num_ops, + int opcode, u32 payload_len) +{ + struct ceph_osd_req_op *ops; + + ops = kzalloc(sizeof (*ops) * (num_ops + 1), GFP_NOIO); + if (!ops) + return NULL; + + ops[0].op = opcode; + /* * op extent offset and length will be set later on * in calc_raw_layout() */ - (*ops)[0].payload_len = payload_len; - return 0; + ops[0].payload_len = payload_len; + + return ops; } static void rbd_destroy_ops(struct ceph_osd_req_op *ops) @@ -808,8 +829,8 @@ static void rbd_coll_end_req_index(struct request *rq, struct request_queue *q; int min, max, i; - dout("rbd_coll_end_req_index %p index %d ret %d len %lld\n", - coll, index, ret, len); + dout("rbd_coll_end_req_index %p index %d ret %d len %llu\n", + coll, index, ret, (unsigned long long) len); if (!rq) return; @@ -848,16 +869,15 @@ static void rbd_coll_end_req(struct rbd_request *req, * Send ceph osd request */ static int rbd_do_request(struct request *rq, - struct rbd_device *dev, + struct rbd_device *rbd_dev, struct ceph_snap_context *snapc, u64 snapid, - const char *obj, u64 ofs, u64 len, + const char *object_name, u64 ofs, u64 len, struct bio *bio, struct page **pages, int num_pages, int flags, struct ceph_osd_req_op *ops, - int num_reply, struct rbd_req_coll *coll, int coll_index, void (*rbd_cb)(struct ceph_osd_request *req, @@ -887,15 +907,13 @@ static int rbd_do_request(struct request *rq, req_data->coll_index = coll_index; } - dout("rbd_do_request obj=%s ofs=%lld len=%lld\n", obj, len, ofs); - - down_read(&dev->header_rwsem); + dout("rbd_do_request object_name=%s ofs=%llu len=%llu\n", object_name, + (unsigned long long) ofs, (unsigned long long) len); - osdc = &dev->rbd_client->client->osdc; + osdc = &rbd_dev->rbd_client->client->osdc; req = ceph_osdc_alloc_request(osdc, flags, snapc, ops, false, GFP_NOIO, pages, bio); if (!req) { - up_read(&dev->header_rwsem); ret = -ENOMEM; goto done_pages; } @@ -912,7 +930,7 @@ static int rbd_do_request(struct request *rq, reqhead = req->r_request->front.iov_base; reqhead->snapid = cpu_to_le64(CEPH_NOSNAP); - strncpy(req->r_oid, obj, sizeof(req->r_oid)); + strncpy(req->r_oid, object_name, sizeof(req->r_oid)); req->r_oid_len = strlen(req->r_oid); layout = &req->r_file_layout; @@ -920,7 +938,7 @@ static int rbd_do_request(struct request *rq, layout->fl_stripe_unit = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER); layout->fl_stripe_count = cpu_to_le32(1); layout->fl_object_size = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER); - layout->fl_pg_pool = cpu_to_le32(dev->poolid); + layout->fl_pg_pool = cpu_to_le32(rbd_dev->pool_id); ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno, req, ops); @@ -929,7 +947,6 @@ static int rbd_do_request(struct request *rq, snapc, &mtime, req->r_oid, req->r_oid_len); - up_read(&dev->header_rwsem); if (linger_req) { ceph_osdc_set_request_linger(osdc, req); @@ -944,8 +961,9 @@ static int rbd_do_request(struct request *rq, ret = ceph_osdc_wait_request(osdc, req); if (ver) *ver = le64_to_cpu(req->r_reassert_version.version); - dout("reassert_ver=%lld\n", - le64_to_cpu(req->r_reassert_version.version)); + dout("reassert_ver=%llu\n", + (unsigned long long) + le64_to_cpu(req->r_reassert_version.version)); ceph_osdc_put_request(req); } return ret; @@ -979,7 +997,8 @@ static void rbd_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg) bytes = le64_to_cpu(op->extent.length); read_op = (le16_to_cpu(op->op) == CEPH_OSD_OP_READ); - dout("rbd_req_cb bytes=%lld readop=%d rc=%d\n", bytes, read_op, rc); + dout("rbd_req_cb bytes=%llu readop=%d rc=%d\n", + (unsigned long long) bytes, read_op, (int) rc); if (rc == -ENOENT && read_op) { zero_bio_chain(req_data->bio, 0); @@ -1006,14 +1025,12 @@ static void rbd_simple_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg /* * Do a synchronous ceph osd operation */ -static int rbd_req_sync_op(struct rbd_device *dev, +static int rbd_req_sync_op(struct rbd_device *rbd_dev, struct ceph_snap_context *snapc, u64 snapid, - int opcode, int flags, - struct ceph_osd_req_op *orig_ops, - int num_reply, - const char *obj, + struct ceph_osd_req_op *ops, + const char *object_name, u64 ofs, u64 len, char *buf, struct ceph_osd_request **linger_req, @@ -1022,45 +1039,28 @@ static int rbd_req_sync_op(struct rbd_device *dev, int ret; struct page **pages; int num_pages; - struct ceph_osd_req_op *ops = orig_ops; - u32 payload_len; + + BUG_ON(ops == NULL); num_pages = calc_pages_for(ofs , len); pages = ceph_alloc_page_vector(num_pages, GFP_KERNEL); if (IS_ERR(pages)) return PTR_ERR(pages); - if (!orig_ops) { - payload_len = (flags & CEPH_OSD_FLAG_WRITE ? len : 0); - ret = rbd_create_rw_ops(&ops, 1, opcode, payload_len); - if (ret < 0) - goto done; - - if ((flags & CEPH_OSD_FLAG_WRITE) && buf) { - ret = ceph_copy_to_page_vector(pages, buf, ofs, len); - if (ret < 0) - goto done_ops; - } - } - - ret = rbd_do_request(NULL, dev, snapc, snapid, - obj, ofs, len, NULL, + ret = rbd_do_request(NULL, rbd_dev, snapc, snapid, + object_name, ofs, len, NULL, pages, num_pages, flags, ops, - 2, NULL, 0, NULL, linger_req, ver); if (ret < 0) - goto done_ops; + goto done; if ((flags & CEPH_OSD_FLAG_READ) && buf) ret = ceph_copy_from_page_vector(pages, buf, ofs, ret); -done_ops: - if (!orig_ops) - rbd_destroy_ops(ops); done: ceph_release_page_vector(pages, num_pages); return ret; @@ -1070,10 +1070,10 @@ done: * Do an asynchronous ceph osd operation */ static int rbd_do_op(struct request *rq, - struct rbd_device *rbd_dev , + struct rbd_device *rbd_dev, struct ceph_snap_context *snapc, u64 snapid, - int opcode, int flags, int num_reply, + int opcode, int flags, u64 ofs, u64 len, struct bio *bio, struct rbd_req_coll *coll, @@ -1091,14 +1091,15 @@ static int rbd_do_op(struct request *rq, return -ENOMEM; seg_len = rbd_get_segment(&rbd_dev->header, - rbd_dev->header.block_name, + rbd_dev->header.object_prefix, ofs, len, seg_name, &seg_ofs); payload_len = (flags & CEPH_OSD_FLAG_WRITE ? seg_len : 0); - ret = rbd_create_rw_ops(&ops, 1, opcode, payload_len); - if (ret < 0) + ret = -ENOMEM; + ops = rbd_create_rw_ops(1, opcode, payload_len); + if (!ops) goto done; /* we've taken care of segment sizes earlier when we @@ -1112,7 +1113,6 @@ static int rbd_do_op(struct request *rq, NULL, 0, flags, ops, - num_reply, coll, coll_index, rbd_req_cb, 0, NULL); @@ -1136,7 +1136,6 @@ static int rbd_req_write(struct request *rq, return rbd_do_op(rq, rbd_dev, snapc, CEPH_NOSNAP, CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, - 2, ofs, len, bio, coll, coll_index); } @@ -1155,55 +1154,58 @@ static int rbd_req_read(struct request *rq, snapid, CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, - 2, ofs, len, bio, coll, coll_index); } /* * Request sync osd read */ -static int rbd_req_sync_read(struct rbd_device *dev, - struct ceph_snap_context *snapc, +static int rbd_req_sync_read(struct rbd_device *rbd_dev, u64 snapid, - const char *obj, + const char *object_name, u64 ofs, u64 len, char *buf, u64 *ver) { - return rbd_req_sync_op(dev, NULL, + struct ceph_osd_req_op *ops; + int ret; + + ops = rbd_create_rw_ops(1, CEPH_OSD_OP_READ, 0); + if (!ops) + return -ENOMEM; + + ret = rbd_req_sync_op(rbd_dev, NULL, snapid, - CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, - NULL, - 1, obj, ofs, len, buf, NULL, ver); + ops, object_name, ofs, len, buf, NULL, ver); + rbd_destroy_ops(ops); + + return ret; } /* * Request sync osd watch */ -static int rbd_req_sync_notify_ack(struct rbd_device *dev, +static int rbd_req_sync_notify_ack(struct rbd_device *rbd_dev, u64 ver, - u64 notify_id, - const char *obj) + u64 notify_id) { struct ceph_osd_req_op *ops; - struct page **pages = NULL; int ret; - ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY_ACK, 0); - if (ret < 0) - return ret; + ops = rbd_create_rw_ops(1, CEPH_OSD_OP_NOTIFY_ACK, 0); + if (!ops) + return -ENOMEM; - ops[0].watch.ver = cpu_to_le64(dev->header.obj_version); + ops[0].watch.ver = cpu_to_le64(ver); ops[0].watch.cookie = notify_id; ops[0].watch.flag = 0; - ret = rbd_do_request(NULL, dev, NULL, CEPH_NOSNAP, - obj, 0, 0, NULL, - pages, 0, + ret = rbd_do_request(NULL, rbd_dev, NULL, CEPH_NOSNAP, + rbd_dev->header_name, 0, 0, NULL, + NULL, 0, CEPH_OSD_FLAG_READ, ops, - 1, NULL, 0, rbd_simple_req_cb, 0, NULL); @@ -1213,54 +1215,53 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev, static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data) { - struct rbd_device *dev = (struct rbd_device *)data; + struct rbd_device *rbd_dev = (struct rbd_device *)data; + u64 hver; int rc; - if (!dev) + if (!rbd_dev) return; - dout("rbd_watch_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name, - notify_id, (int)opcode); - mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); - rc = __rbd_refresh_header(dev); - mutex_unlock(&ctl_mutex); + dout("rbd_watch_cb %s notify_id=%llu opcode=%u\n", + rbd_dev->header_name, (unsigned long long) notify_id, + (unsigned int) opcode); + rc = rbd_refresh_header(rbd_dev, &hver); if (rc) pr_warning(RBD_DRV_NAME "%d got notification but failed to " - " update snaps: %d\n", dev->major, rc); + " update snaps: %d\n", rbd_dev->major, rc); - rbd_req_sync_notify_ack(dev, ver, notify_id, dev->obj_md_name); + rbd_req_sync_notify_ack(rbd_dev, hver, notify_id); } /* * Request sync osd watch */ -static int rbd_req_sync_watch(struct rbd_device *dev, - const char *obj, - u64 ver) +static int rbd_req_sync_watch(struct rbd_device *rbd_dev) { struct ceph_osd_req_op *ops; - struct ceph_osd_client *osdc = &dev->rbd_client->client->osdc; + struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; + int ret; - int ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_WATCH, 0); - if (ret < 0) - return ret; + ops = rbd_create_rw_ops(1, CEPH_OSD_OP_WATCH, 0); + if (!ops) + return -ENOMEM; ret = ceph_osdc_create_event(osdc, rbd_watch_cb, 0, - (void *)dev, &dev->watch_event); + (void *)rbd_dev, &rbd_dev->watch_event); if (ret < 0) goto fail; - ops[0].watch.ver = cpu_to_le64(ver); - ops[0].watch.cookie = cpu_to_le64(dev->watch_event->cookie); + ops[0].watch.ver = cpu_to_le64(rbd_dev->header.obj_version); + ops[0].watch.cookie = cpu_to_le64(rbd_dev->watch_event->cookie); ops[0].watch.flag = 1; - ret = rbd_req_sync_op(dev, NULL, + ret = rbd_req_sync_op(rbd_dev, NULL, CEPH_NOSNAP, - 0, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, ops, - 1, obj, 0, 0, NULL, - &dev->watch_request, NULL); + rbd_dev->header_name, + 0, 0, NULL, + &rbd_dev->watch_request, NULL); if (ret < 0) goto fail_event; @@ -1269,8 +1270,8 @@ static int rbd_req_sync_watch(struct rbd_device *dev, return 0; fail_event: - ceph_osdc_cancel_event(dev->watch_event); - dev->watch_event = NULL; + ceph_osdc_cancel_event(rbd_dev->watch_event); + rbd_dev->watch_event = NULL; fail: rbd_destroy_ops(ops); return ret; @@ -1279,64 +1280,65 @@ fail: /* * Request sync osd unwatch */ -static int rbd_req_sync_unwatch(struct rbd_device *dev, - const char *obj) +static int rbd_req_sync_unwatch(struct rbd_device *rbd_dev) { struct ceph_osd_req_op *ops; + int ret; - int ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_WATCH, 0); - if (ret < 0) - return ret; + ops = rbd_create_rw_ops(1, CEPH_OSD_OP_WATCH, 0); + if (!ops) + return -ENOMEM; ops[0].watch.ver = 0; - ops[0].watch.cookie = cpu_to_le64(dev->watch_event->cookie); + ops[0].watch.cookie = cpu_to_le64(rbd_dev->watch_event->cookie); ops[0].watch.flag = 0; - ret = rbd_req_sync_op(dev, NULL, + ret = rbd_req_sync_op(rbd_dev, NULL, CEPH_NOSNAP, - 0, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, ops, - 1, obj, 0, 0, NULL, NULL, NULL); + rbd_dev->header_name, + 0, 0, NULL, NULL, NULL); + rbd_destroy_ops(ops); - ceph_osdc_cancel_event(dev->watch_event); - dev->watch_event = NULL; + ceph_osdc_cancel_event(rbd_dev->watch_event); + rbd_dev->watch_event = NULL; return ret; } struct rbd_notify_info { - struct rbd_device *dev; + struct rbd_device *rbd_dev; }; static void rbd_notify_cb(u64 ver, u64 notify_id, u8 opcode, void *data) { - struct rbd_device *dev = (struct rbd_device *)data; - if (!dev) + struct rbd_device *rbd_dev = (struct rbd_device *)data; + if (!rbd_dev) return; - dout("rbd_notify_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name, - notify_id, (int)opcode); + dout("rbd_notify_cb %s notify_id=%llu opcode=%u\n", + rbd_dev->header_name, (unsigned long long) notify_id, + (unsigned int) opcode); } /* * Request sync osd notify */ -static int rbd_req_sync_notify(struct rbd_device *dev, - const char *obj) +static int rbd_req_sync_notify(struct rbd_device *rbd_dev) { struct ceph_osd_req_op *ops; - struct ceph_osd_client *osdc = &dev->rbd_client->client->osdc; + struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; struct ceph_osd_event *event; struct rbd_notify_info info; int payload_len = sizeof(u32) + sizeof(u32); int ret; - ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY, payload_len); - if (ret < 0) - return ret; + ops = rbd_create_rw_ops(1, CEPH_OSD_OP_NOTIFY, payload_len); + if (!ops) + return -ENOMEM; - info.dev = dev; + info.rbd_dev = rbd_dev; ret = ceph_osdc_create_event(osdc, rbd_notify_cb, 1, (void *)&info, &event); @@ -1349,12 +1351,12 @@ static int rbd_req_sync_notify(struct rbd_device *dev, ops[0].watch.prot_ver = RADOS_NOTIFY_VER; ops[0].watch.timeout = 12; - ret = rbd_req_sync_op(dev, NULL, + ret = rbd_req_sync_op(rbd_dev, NULL, CEPH_NOSNAP, - 0, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, ops, - 1, obj, 0, 0, NULL, NULL, NULL); + rbd_dev->header_name, + 0, 0, NULL, NULL, NULL); if (ret < 0) goto fail_event; @@ -1373,36 +1375,37 @@ fail: /* * Request sync osd read */ -static int rbd_req_sync_exec(struct rbd_device *dev, - const char *obj, - const char *cls, - const char *method, +static int rbd_req_sync_exec(struct rbd_device *rbd_dev, + const char *object_name, + const char *class_name, + const char *method_name, const char *data, int len, u64 *ver) { struct ceph_osd_req_op *ops; - int cls_len = strlen(cls); - int method_len = strlen(method); - int ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_CALL, - cls_len + method_len + len); - if (ret < 0) - return ret; + int class_name_len = strlen(class_name); + int method_name_len = strlen(method_name); + int ret; - ops[0].cls.class_name = cls; - ops[0].cls.class_len = (__u8)cls_len; - ops[0].cls.method_name = method; - ops[0].cls.method_len = (__u8)method_len; + ops = rbd_create_rw_ops(1, CEPH_OSD_OP_CALL, + class_name_len + method_name_len + len); + if (!ops) + return -ENOMEM; + + ops[0].cls.class_name = class_name; + ops[0].cls.class_len = (__u8) class_name_len; + ops[0].cls.method_name = method_name; + ops[0].cls.method_len = (__u8) method_name_len; ops[0].cls.argc = 0; ops[0].cls.indata = data; ops[0].cls.indata_len = len; - ret = rbd_req_sync_op(dev, NULL, + ret = rbd_req_sync_op(rbd_dev, NULL, CEPH_NOSNAP, - 0, CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK, ops, - 1, obj, 0, 0, NULL, NULL, ver); + object_name, 0, 0, NULL, NULL, ver); rbd_destroy_ops(ops); @@ -1437,10 +1440,12 @@ static void rbd_rq_fn(struct request_queue *q) struct bio *bio; struct bio *rq_bio, *next_bio = NULL; bool do_write; - int size, op_size = 0; + unsigned int size; + u64 op_size = 0; u64 ofs; int num_segs, cur_seg = 0; struct rbd_req_coll *coll; + struct ceph_snap_context *snapc; /* peek at request from block layer */ if (!rq) @@ -1467,23 +1472,38 @@ static void rbd_rq_fn(struct request_queue *q) spin_unlock_irq(q->queue_lock); + down_read(&rbd_dev->header_rwsem); + + if (rbd_dev->snap_id != CEPH_NOSNAP && !rbd_dev->snap_exists) { + up_read(&rbd_dev->header_rwsem); + dout("request for non-existent snapshot"); + spin_lock_irq(q->queue_lock); + __blk_end_request_all(rq, -ENXIO); + continue; + } + + snapc = ceph_get_snap_context(rbd_dev->header.snapc); + + up_read(&rbd_dev->header_rwsem); + dout("%s 0x%x bytes at 0x%llx\n", do_write ? "write" : "read", - size, blk_rq_pos(rq) * SECTOR_SIZE); + size, (unsigned long long) blk_rq_pos(rq) * SECTOR_SIZE); num_segs = rbd_get_num_segments(&rbd_dev->header, ofs, size); coll = rbd_alloc_coll(num_segs); if (!coll) { spin_lock_irq(q->queue_lock); __blk_end_request_all(rq, -ENOMEM); + ceph_put_snap_context(snapc); continue; } do { /* a bio clone to be passed down to OSD req */ - dout("rq->bio->bi_vcnt=%d\n", rq->bio->bi_vcnt); + dout("rq->bio->bi_vcnt=%hu\n", rq->bio->bi_vcnt); op_size = rbd_get_segment(&rbd_dev->header, - rbd_dev->header.block_name, + rbd_dev->header.object_prefix, ofs, size, NULL, NULL); kref_get(&coll->kref); @@ -1499,7 +1519,7 @@ static void rbd_rq_fn(struct request_queue *q) /* init OSD command: write or read */ if (do_write) rbd_req_write(rq, rbd_dev, - rbd_dev->header.snapc, + snapc, ofs, op_size, bio, coll, cur_seg); @@ -1522,6 +1542,8 @@ next_seg: if (bp) bio_pair_release(bp); spin_lock_irq(q->queue_lock); + + ceph_put_snap_context(snapc); } } @@ -1592,18 +1614,19 @@ static int rbd_read_header(struct rbd_device *rbd_dev, return -ENOMEM; rc = rbd_req_sync_read(rbd_dev, - NULL, CEPH_NOSNAP, - rbd_dev->obj_md_name, + CEPH_NOSNAP, + rbd_dev->header_name, 0, len, (char *)dh, &ver); if (rc < 0) goto out_dh; - rc = rbd_header_from_disk(header, dh, snap_count, GFP_KERNEL); + rc = rbd_header_from_disk(header, dh, snap_count); if (rc < 0) { if (rc == -ENXIO) pr_warning("unrecognized header format" - " for image %s", rbd_dev->obj); + " for image %s\n", + rbd_dev->image_name); goto out_dh; } @@ -1628,7 +1651,7 @@ out_dh: /* * create a snapshot */ -static int rbd_header_add_snap(struct rbd_device *dev, +static int rbd_header_add_snap(struct rbd_device *rbd_dev, const char *snap_name, gfp_t gfp_flags) { @@ -1636,16 +1659,15 @@ static int rbd_header_add_snap(struct rbd_device *dev, u64 new_snapid; int ret; void *data, *p, *e; - u64 ver; struct ceph_mon_client *monc; /* we should create a snapshot only if we're pointing at the head */ - if (dev->snap_id != CEPH_NOSNAP) + if (rbd_dev->snap_id != CEPH_NOSNAP) return -EINVAL; - monc = &dev->rbd_client->client->monc; - ret = ceph_monc_create_snapid(monc, dev->poolid, &new_snapid); - dout("created snapid=%lld\n", new_snapid); + monc = &rbd_dev->rbd_client->client->monc; + ret = ceph_monc_create_snapid(monc, rbd_dev->pool_id, &new_snapid); + dout("created snapid=%llu\n", (unsigned long long) new_snapid); if (ret < 0) return ret; @@ -1659,19 +1681,13 @@ static int rbd_header_add_snap(struct rbd_device *dev, ceph_encode_string_safe(&p, e, snap_name, name_len, bad); ceph_encode_64_safe(&p, e, new_snapid, bad); - ret = rbd_req_sync_exec(dev, dev->obj_md_name, "rbd", "snap_add", - data, p - data, &ver); + ret = rbd_req_sync_exec(rbd_dev, rbd_dev->header_name, + "rbd", "snap_add", + data, p - data, NULL); kfree(data); - if (ret < 0) - return ret; - - down_write(&dev->header_rwsem); - dev->header.snapc->seq = new_snapid; - up_write(&dev->header_rwsem); - - return 0; + return ret < 0 ? ret : 0; bad: return -ERANGE; } @@ -1679,52 +1695,52 @@ bad: static void __rbd_remove_all_snaps(struct rbd_device *rbd_dev) { struct rbd_snap *snap; + struct rbd_snap *next; - while (!list_empty(&rbd_dev->snaps)) { - snap = list_first_entry(&rbd_dev->snaps, struct rbd_snap, node); - __rbd_remove_snap_dev(rbd_dev, snap); - } + list_for_each_entry_safe(snap, next, &rbd_dev->snaps, node) + __rbd_remove_snap_dev(snap); } /* * only read the first part of the ondisk header, without the snaps info */ -static int __rbd_refresh_header(struct rbd_device *rbd_dev) +static int __rbd_refresh_header(struct rbd_device *rbd_dev, u64 *hver) { int ret; struct rbd_image_header h; - u64 snap_seq; - int follow_seq = 0; ret = rbd_read_header(rbd_dev, &h); if (ret < 0) return ret; - /* resized? */ - set_capacity(rbd_dev->disk, h.image_size / SECTOR_SIZE); - down_write(&rbd_dev->header_rwsem); - snap_seq = rbd_dev->header.snapc->seq; - if (rbd_dev->header.total_snaps && - rbd_dev->header.snapc->snaps[0] == snap_seq) - /* pointing at the head, will need to follow that - if head moves */ - follow_seq = 1; + /* resized? */ + if (rbd_dev->snap_id == CEPH_NOSNAP) { + sector_t size = (sector_t) h.image_size / SECTOR_SIZE; - kfree(rbd_dev->header.snapc); - kfree(rbd_dev->header.snap_names); + dout("setting size to %llu sectors", (unsigned long long) size); + set_capacity(rbd_dev->disk, size); + } + + /* rbd_dev->header.object_prefix shouldn't change */ kfree(rbd_dev->header.snap_sizes); + kfree(rbd_dev->header.snap_names); + /* osd requests may still refer to snapc */ + ceph_put_snap_context(rbd_dev->header.snapc); + if (hver) + *hver = h.obj_version; + rbd_dev->header.obj_version = h.obj_version; + rbd_dev->header.image_size = h.image_size; rbd_dev->header.total_snaps = h.total_snaps; rbd_dev->header.snapc = h.snapc; rbd_dev->header.snap_names = h.snap_names; rbd_dev->header.snap_names_len = h.snap_names_len; rbd_dev->header.snap_sizes = h.snap_sizes; - if (follow_seq) - rbd_dev->header.snapc->seq = rbd_dev->header.snapc->snaps[0]; - else - rbd_dev->header.snapc->seq = snap_seq; + /* Free the extra copy of the object prefix */ + WARN_ON(strcmp(rbd_dev->header.object_prefix, h.object_prefix)); + kfree(h.object_prefix); ret = __rbd_init_snaps_header(rbd_dev); @@ -1733,6 +1749,17 @@ static int __rbd_refresh_header(struct rbd_device *rbd_dev) return ret; } +static int rbd_refresh_header(struct rbd_device *rbd_dev, u64 *hver) +{ + int ret; + + mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); + ret = __rbd_refresh_header(rbd_dev, hver); + mutex_unlock(&ctl_mutex); + + return ret; +} + static int rbd_init_disk(struct rbd_device *rbd_dev) { struct gendisk *disk; @@ -1762,7 +1789,7 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) goto out; snprintf(disk->disk_name, sizeof(disk->disk_name), RBD_DRV_NAME "%d", - rbd_dev->id); + rbd_dev->dev_id); disk->major = rbd_dev->major; disk->first_minor = 0; disk->fops = &rbd_bd_ops; @@ -1819,8 +1846,13 @@ static ssize_t rbd_size_show(struct device *dev, struct device_attribute *attr, char *buf) { struct rbd_device *rbd_dev = dev_to_rbd_dev(dev); + sector_t size; + + down_read(&rbd_dev->header_rwsem); + size = get_capacity(rbd_dev->disk); + up_read(&rbd_dev->header_rwsem); - return sprintf(buf, "%llu\n", (unsigned long long)rbd_dev->header.image_size); + return sprintf(buf, "%llu\n", (unsigned long long) size * SECTOR_SIZE); } static ssize_t rbd_major_show(struct device *dev, @@ -1848,12 +1880,20 @@ static ssize_t rbd_pool_show(struct device *dev, return sprintf(buf, "%s\n", rbd_dev->pool_name); } +static ssize_t rbd_pool_id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct rbd_device *rbd_dev = dev_to_rbd_dev(dev); + + return sprintf(buf, "%d\n", rbd_dev->pool_id); +} + static ssize_t rbd_name_show(struct device *dev, struct device_attribute *attr, char *buf) { struct rbd_device *rbd_dev = dev_to_rbd_dev(dev); - return sprintf(buf, "%s\n", rbd_dev->obj); + return sprintf(buf, "%s\n", rbd_dev->image_name); } static ssize_t rbd_snap_show(struct device *dev, @@ -1871,23 +1911,18 @@ static ssize_t rbd_image_refresh(struct device *dev, size_t size) { struct rbd_device *rbd_dev = dev_to_rbd_dev(dev); - int rc; - int ret = size; - - mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); + int ret; - rc = __rbd_refresh_header(rbd_dev); - if (rc < 0) - ret = rc; + ret = rbd_refresh_header(rbd_dev, NULL); - mutex_unlock(&ctl_mutex); - return ret; + return ret < 0 ? ret : size; } static DEVICE_ATTR(size, S_IRUGO, rbd_size_show, NULL); static DEVICE_ATTR(major, S_IRUGO, rbd_major_show, NULL); static DEVICE_ATTR(client_id, S_IRUGO, rbd_client_id_show, NULL); static DEVICE_ATTR(pool, S_IRUGO, rbd_pool_show, NULL); +static DEVICE_ATTR(pool_id, S_IRUGO, rbd_pool_id_show, NULL); static DEVICE_ATTR(name, S_IRUGO, rbd_name_show, NULL); static DEVICE_ATTR(refresh, S_IWUSR, NULL, rbd_image_refresh); static DEVICE_ATTR(current_snap, S_IRUGO, rbd_snap_show, NULL); @@ -1898,6 +1933,7 @@ static struct attribute *rbd_attrs[] = { &dev_attr_major.attr, &dev_attr_client_id.attr, &dev_attr_pool.attr, + &dev_attr_pool_id.attr, &dev_attr_name.attr, &dev_attr_current_snap.attr, &dev_attr_refresh.attr, @@ -1977,15 +2013,13 @@ static struct device_type rbd_snap_device_type = { .release = rbd_snap_dev_release, }; -static void __rbd_remove_snap_dev(struct rbd_device *rbd_dev, - struct rbd_snap *snap) +static void __rbd_remove_snap_dev(struct rbd_snap *snap) { list_del(&snap->node); device_unregister(&snap->dev); } -static int rbd_register_snap_dev(struct rbd_device *rbd_dev, - struct rbd_snap *snap, +static int rbd_register_snap_dev(struct rbd_snap *snap, struct device *parent) { struct device *dev = &snap->dev; @@ -2000,29 +2034,36 @@ static int rbd_register_snap_dev(struct rbd_device *rbd_dev, return ret; } -static int __rbd_add_snap_dev(struct rbd_device *rbd_dev, - int i, const char *name, - struct rbd_snap **snapp) +static struct rbd_snap *__rbd_add_snap_dev(struct rbd_device *rbd_dev, + int i, const char *name) { + struct rbd_snap *snap; int ret; - struct rbd_snap *snap = kzalloc(sizeof(*snap), GFP_KERNEL); + + snap = kzalloc(sizeof (*snap), GFP_KERNEL); if (!snap) - return -ENOMEM; + return ERR_PTR(-ENOMEM); + + ret = -ENOMEM; snap->name = kstrdup(name, GFP_KERNEL); + if (!snap->name) + goto err; + snap->size = rbd_dev->header.snap_sizes[i]; snap->id = rbd_dev->header.snapc->snaps[i]; if (device_is_registered(&rbd_dev->dev)) { - ret = rbd_register_snap_dev(rbd_dev, snap, - &rbd_dev->dev); + ret = rbd_register_snap_dev(snap, &rbd_dev->dev); if (ret < 0) goto err; } - *snapp = snap; - return 0; + + return snap; + err: kfree(snap->name); kfree(snap); - return ret; + + return ERR_PTR(ret); } /* @@ -2055,7 +2096,6 @@ static int __rbd_init_snaps_header(struct rbd_device *rbd_dev) const char *name, *first_name; int i = rbd_dev->header.total_snaps; struct rbd_snap *snap, *old_snap = NULL; - int ret; struct list_head *p, *n; first_name = rbd_dev->header.snap_names; @@ -2070,8 +2110,15 @@ static int __rbd_init_snaps_header(struct rbd_device *rbd_dev) cur_id = rbd_dev->header.snapc->snaps[i - 1]; if (!i || old_snap->id < cur_id) { - /* old_snap->id was skipped, thus was removed */ - __rbd_remove_snap_dev(rbd_dev, old_snap); + /* + * old_snap->id was skipped, thus was + * removed. If this rbd_dev is mapped to + * the removed snapshot, record that it no + * longer exists, to prevent further I/O. + */ + if (rbd_dev->snap_id == old_snap->id) + rbd_dev->snap_exists = false; + __rbd_remove_snap_dev(old_snap); continue; } if (old_snap->id == cur_id) { @@ -2091,9 +2138,9 @@ static int __rbd_init_snaps_header(struct rbd_device *rbd_dev) if (cur_id >= old_snap->id) break; /* a new snapshot */ - ret = __rbd_add_snap_dev(rbd_dev, i - 1, name, &snap); - if (ret < 0) - return ret; + snap = __rbd_add_snap_dev(rbd_dev, i - 1, name); + if (IS_ERR(snap)) + return PTR_ERR(snap); /* note that we add it backward so using n and not p */ list_add(&snap->node, n); @@ -2107,9 +2154,9 @@ static int __rbd_init_snaps_header(struct rbd_device *rbd_dev) WARN_ON(1); return -EINVAL; } - ret = __rbd_add_snap_dev(rbd_dev, i - 1, name, &snap); - if (ret < 0) - return ret; + snap = __rbd_add_snap_dev(rbd_dev, i - 1, name); + if (IS_ERR(snap)) + return PTR_ERR(snap); list_add(&snap->node, &rbd_dev->snaps); } @@ -2129,14 +2176,13 @@ static int rbd_bus_add_dev(struct rbd_device *rbd_dev) dev->type = &rbd_device_type; dev->parent = &rbd_root_dev; dev->release = rbd_dev_release; - dev_set_name(dev, "%d", rbd_dev->id); + dev_set_name(dev, "%d", rbd_dev->dev_id); ret = device_register(dev); if (ret < 0) goto out; list_for_each_entry(snap, &rbd_dev->snaps, node) { - ret = rbd_register_snap_dev(rbd_dev, snap, - &rbd_dev->dev); + ret = rbd_register_snap_dev(snap, &rbd_dev->dev); if (ret < 0) break; } @@ -2155,12 +2201,9 @@ static int rbd_init_watch_dev(struct rbd_device *rbd_dev) int ret, rc; do { - ret = rbd_req_sync_watch(rbd_dev, rbd_dev->obj_md_name, - rbd_dev->header.obj_version); + ret = rbd_req_sync_watch(rbd_dev); if (ret == -ERANGE) { - mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); - rc = __rbd_refresh_header(rbd_dev); - mutex_unlock(&ctl_mutex); + rc = rbd_refresh_header(rbd_dev, NULL); if (rc < 0) return rc; } @@ -2177,7 +2220,7 @@ static atomic64_t rbd_id_max = ATOMIC64_INIT(0); */ static void rbd_id_get(struct rbd_device *rbd_dev) { - rbd_dev->id = atomic64_inc_return(&rbd_id_max); + rbd_dev->dev_id = atomic64_inc_return(&rbd_id_max); spin_lock(&rbd_dev_list_lock); list_add_tail(&rbd_dev->node, &rbd_dev_list); @@ -2191,7 +2234,7 @@ static void rbd_id_get(struct rbd_device *rbd_dev) static void rbd_id_put(struct rbd_device *rbd_dev) { struct list_head *tmp; - int rbd_id = rbd_dev->id; + int rbd_id = rbd_dev->dev_id; int max_id; BUG_ON(rbd_id < 1); @@ -2282,19 +2325,58 @@ static inline size_t copy_token(const char **buf, } /* - * This fills in the pool_name, obj, obj_len, snap_name, obj_len, + * Finds the next token in *buf, dynamically allocates a buffer big + * enough to hold a copy of it, and copies the token into the new + * buffer. The copy is guaranteed to be terminated with '\0'. Note + * that a duplicate buffer is created even for a zero-length token. + * + * Returns a pointer to the newly-allocated duplicate, or a null + * pointer if memory for the duplicate was not available. If + * the lenp argument is a non-null pointer, the length of the token + * (not including the '\0') is returned in *lenp. + * + * If successful, the *buf pointer will be updated to point beyond + * the end of the found token. + * + * Note: uses GFP_KERNEL for allocation. + */ +static inline char *dup_token(const char **buf, size_t *lenp) +{ + char *dup; + size_t len; + + len = next_token(buf); + dup = kmalloc(len + 1, GFP_KERNEL); + if (!dup) + return NULL; + + memcpy(dup, *buf, len); + *(dup + len) = '\0'; + *buf += len; + + if (lenp) + *lenp = len; + + return dup; +} + +/* + * This fills in the pool_name, image_name, image_name_len, snap_name, * rbd_dev, rbd_md_name, and name fields of the given rbd_dev, based * on the list of monitor addresses and other options provided via * /sys/bus/rbd/add. + * + * Note: rbd_dev is assumed to have been initially zero-filled. */ static int rbd_add_parse_args(struct rbd_device *rbd_dev, const char *buf, const char **mon_addrs, size_t *mon_addrs_size, char *options, - size_t options_size) + size_t options_size) { - size_t len; + size_t len; + int ret; /* The first four tokens are required */ @@ -2310,56 +2392,74 @@ static int rbd_add_parse_args(struct rbd_device *rbd_dev, if (!len || len >= options_size) return -EINVAL; - len = copy_token(&buf, rbd_dev->pool_name, sizeof (rbd_dev->pool_name)); - if (!len || len >= sizeof (rbd_dev->pool_name)) - return -EINVAL; - - len = copy_token(&buf, rbd_dev->obj, sizeof (rbd_dev->obj)); - if (!len || len >= sizeof (rbd_dev->obj)) - return -EINVAL; + ret = -ENOMEM; + rbd_dev->pool_name = dup_token(&buf, NULL); + if (!rbd_dev->pool_name) + goto out_err; - /* We have the object length in hand, save it. */ + rbd_dev->image_name = dup_token(&buf, &rbd_dev->image_name_len); + if (!rbd_dev->image_name) + goto out_err; - rbd_dev->obj_len = len; + /* Create the name of the header object */ - BUILD_BUG_ON(RBD_MAX_MD_NAME_LEN - < RBD_MAX_OBJ_NAME_LEN + sizeof (RBD_SUFFIX)); - sprintf(rbd_dev->obj_md_name, "%s%s", rbd_dev->obj, RBD_SUFFIX); + rbd_dev->header_name = kmalloc(rbd_dev->image_name_len + + sizeof (RBD_SUFFIX), + GFP_KERNEL); + if (!rbd_dev->header_name) + goto out_err; + sprintf(rbd_dev->header_name, "%s%s", rbd_dev->image_name, RBD_SUFFIX); /* - * The snapshot name is optional, but it's an error if it's - * too long. If no snapshot is supplied, fill in the default. + * The snapshot name is optional. If none is is supplied, + * we use the default value. */ - len = copy_token(&buf, rbd_dev->snap_name, sizeof (rbd_dev->snap_name)); - if (!len) + rbd_dev->snap_name = dup_token(&buf, &len); + if (!rbd_dev->snap_name) + goto out_err; + if (!len) { + /* Replace the empty name with the default */ + kfree(rbd_dev->snap_name); + rbd_dev->snap_name + = kmalloc(sizeof (RBD_SNAP_HEAD_NAME), GFP_KERNEL); + if (!rbd_dev->snap_name) + goto out_err; + memcpy(rbd_dev->snap_name, RBD_SNAP_HEAD_NAME, sizeof (RBD_SNAP_HEAD_NAME)); - else if (len >= sizeof (rbd_dev->snap_name)) - return -EINVAL; + } return 0; + +out_err: + kfree(rbd_dev->header_name); + kfree(rbd_dev->image_name); + kfree(rbd_dev->pool_name); + rbd_dev->pool_name = NULL; + + return ret; } static ssize_t rbd_add(struct bus_type *bus, const char *buf, size_t count) { - struct rbd_device *rbd_dev; + char *options; + struct rbd_device *rbd_dev = NULL; const char *mon_addrs = NULL; size_t mon_addrs_size = 0; - char *options = NULL; struct ceph_osd_client *osdc; int rc = -ENOMEM; if (!try_module_get(THIS_MODULE)) return -ENODEV; - rbd_dev = kzalloc(sizeof(*rbd_dev), GFP_KERNEL); - if (!rbd_dev) - goto err_nomem; options = kmalloc(count, GFP_KERNEL); if (!options) goto err_nomem; + rbd_dev = kzalloc(sizeof(*rbd_dev), GFP_KERNEL); + if (!rbd_dev) + goto err_nomem; /* static rbd_device initialization */ spin_lock_init(&rbd_dev->lock); @@ -2367,15 +2467,13 @@ static ssize_t rbd_add(struct bus_type *bus, INIT_LIST_HEAD(&rbd_dev->snaps); init_rwsem(&rbd_dev->header_rwsem); - init_rwsem(&rbd_dev->header_rwsem); - /* generate unique id: find highest unique id, add one */ rbd_id_get(rbd_dev); /* Fill in the device name, now that we have its id. */ BUILD_BUG_ON(DEV_NAME_LEN < sizeof (RBD_DRV_NAME) + MAX_INT_FORMAT_WIDTH); - sprintf(rbd_dev->name, "%s%d", RBD_DRV_NAME, rbd_dev->id); + sprintf(rbd_dev->name, "%s%d", RBD_DRV_NAME, rbd_dev->dev_id); /* parse add command */ rc = rbd_add_parse_args(rbd_dev, buf, &mon_addrs, &mon_addrs_size, @@ -2395,7 +2493,7 @@ static ssize_t rbd_add(struct bus_type *bus, rc = ceph_pg_poolid_by_name(osdc->osdmap, rbd_dev->pool_name); if (rc < 0) goto err_out_client; - rbd_dev->poolid = rc; + rbd_dev->pool_id = rc; /* register our block device */ rc = register_blkdev(0, rbd_dev->name); @@ -2435,10 +2533,16 @@ err_out_blkdev: err_out_client: rbd_put_client(rbd_dev); err_put_id: + if (rbd_dev->pool_name) { + kfree(rbd_dev->snap_name); + kfree(rbd_dev->header_name); + kfree(rbd_dev->image_name); + kfree(rbd_dev->pool_name); + } rbd_id_put(rbd_dev); err_nomem: - kfree(options); kfree(rbd_dev); + kfree(options); dout("Error adding device %s\n", buf); module_put(THIS_MODULE); @@ -2446,7 +2550,7 @@ err_nomem: return (ssize_t) rc; } -static struct rbd_device *__rbd_get_dev(unsigned long id) +static struct rbd_device *__rbd_get_dev(unsigned long dev_id) { struct list_head *tmp; struct rbd_device *rbd_dev; @@ -2454,7 +2558,7 @@ static struct rbd_device *__rbd_get_dev(unsigned long id) spin_lock(&rbd_dev_list_lock); list_for_each(tmp, &rbd_dev_list) { rbd_dev = list_entry(tmp, struct rbd_device, node); - if (rbd_dev->id == id) { + if (rbd_dev->dev_id == dev_id) { spin_unlock(&rbd_dev_list_lock); return rbd_dev; } @@ -2474,7 +2578,7 @@ static void rbd_dev_release(struct device *dev) rbd_dev->watch_request); } if (rbd_dev->watch_event) - rbd_req_sync_unwatch(rbd_dev, rbd_dev->obj_md_name); + rbd_req_sync_unwatch(rbd_dev); rbd_put_client(rbd_dev); @@ -2483,6 +2587,10 @@ static void rbd_dev_release(struct device *dev) unregister_blkdev(rbd_dev->major, rbd_dev->name); /* done with the id, and with the rbd_dev */ + kfree(rbd_dev->snap_name); + kfree(rbd_dev->header_name); + kfree(rbd_dev->pool_name); + kfree(rbd_dev->image_name); rbd_id_put(rbd_dev); kfree(rbd_dev); @@ -2544,7 +2652,7 @@ static ssize_t rbd_snap_add(struct device *dev, if (ret < 0) goto err_unlock; - ret = __rbd_refresh_header(rbd_dev); + ret = __rbd_refresh_header(rbd_dev, NULL); if (ret < 0) goto err_unlock; @@ -2553,7 +2661,7 @@ static ssize_t rbd_snap_add(struct device *dev, mutex_unlock(&ctl_mutex); /* make a best effort, don't error if failed */ - rbd_req_sync_notify(rbd_dev, rbd_dev->obj_md_name); + rbd_req_sync_notify(rbd_dev); ret = count; kfree(name); diff --git a/drivers/block/rbd_types.h b/drivers/block/rbd_types.h index 9507086..0924e9e 100644 --- a/drivers/block/rbd_types.h +++ b/drivers/block/rbd_types.h @@ -31,7 +31,6 @@ #define RBD_MIN_OBJ_ORDER 16 #define RBD_MAX_OBJ_ORDER 30 -#define RBD_MAX_OBJ_NAME_LEN 96 #define RBD_MAX_SEG_NAME_LEN 128 #define RBD_COMP_NONE 0 diff --git a/drivers/block/umem.c b/drivers/block/umem.c index 9a72277..eb0d821 100644 --- a/drivers/block/umem.c +++ b/drivers/block/umem.c @@ -513,42 +513,19 @@ static void process_page(unsigned long data) } } -struct mm_plug_cb { - struct blk_plug_cb cb; - struct cardinfo *card; -}; - -static void mm_unplug(struct blk_plug_cb *cb) +static void mm_unplug(struct blk_plug_cb *cb, bool from_schedule) { - struct mm_plug_cb *mmcb = container_of(cb, struct mm_plug_cb, cb); + struct cardinfo *card = cb->data; - spin_lock_irq(&mmcb->card->lock); - activate(mmcb->card); - spin_unlock_irq(&mmcb->card->lock); - kfree(mmcb); + spin_lock_irq(&card->lock); + activate(card); + spin_unlock_irq(&card->lock); + kfree(cb); } static int mm_check_plugged(struct cardinfo *card) { - struct blk_plug *plug = current->plug; - struct mm_plug_cb *mmcb; - - if (!plug) - return 0; - - list_for_each_entry(mmcb, &plug->cb_list, cb.list) { - if (mmcb->cb.callback == mm_unplug && mmcb->card == card) - return 1; - } - /* Not currently on the callback list */ - mmcb = kmalloc(sizeof(*mmcb), GFP_ATOMIC); - if (!mmcb) - return 0; - - mmcb->card = card; - mmcb->cb.callback = mm_unplug; - list_add(&mmcb->cb.list, &plug->cb_list); - return 1; + return !!blk_check_plugged(mm_unplug, card, sizeof(struct blk_plug_cb)); } static void mm_make_request(struct request_queue *q, struct bio *bio) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index e4fb337..2c2d2e5 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -888,9 +888,8 @@ static int setup_blkring(struct xenbus_device *dev, if (err) goto fail; - err = bind_evtchn_to_irqhandler(info->evtchn, - blkif_interrupt, - IRQF_SAMPLE_RANDOM, "blkif", info); + err = bind_evtchn_to_irqhandler(info->evtchn, blkif_interrupt, 0, + "blkif", info); if (err <= 0) { xenbus_dev_fatal(dev, err, "bind_evtchn_to_irqhandler failed"); diff --git a/drivers/char/random.c b/drivers/char/random.c index 4ec04a7..b86eae9 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -125,21 +125,26 @@ * The current exported interfaces for gathering environmental noise * from the devices are: * + * void add_device_randomness(const void *buf, unsigned int size); * void add_input_randomness(unsigned int type, unsigned int code, * unsigned int value); - * void add_interrupt_randomness(int irq); + * void add_interrupt_randomness(int irq, int irq_flags); * void add_disk_randomness(struct gendisk *disk); * + * add_device_randomness() is for adding data to the random pool that + * is likely to differ between two devices (or possibly even per boot). + * This would be things like MAC addresses or serial numbers, or the + * read-out of the RTC. This does *not* add any actual entropy to the + * pool, but it initializes the pool to different values for devices + * that might otherwise be identical and have very little entropy + * available to them (particularly common in the embedded world). + * * add_input_randomness() uses the input layer interrupt timing, as well as * the event type information from the hardware. * - * add_interrupt_randomness() uses the inter-interrupt timing as random - * inputs to the entropy pool. Note that not all interrupts are good - * sources of randomness! For example, the timer interrupts is not a - * good choice, because the periodicity of the interrupts is too - * regular, and hence predictable to an attacker. Network Interface - * Controller interrupts are a better measure, since the timing of the - * NIC interrupts are more unpredictable. + * add_interrupt_randomness() uses the interrupt timing as random + * inputs to the entropy pool. Using the cycle counters and the irq source + * as inputs, it feeds the randomness roughly once a second. * * add_disk_randomness() uses what amounts to the seek time of block * layer request events, on a per-disk_devt basis, as input to the @@ -248,6 +253,8 @@ #include #include #include +#include +#include #ifdef CONFIG_GENERIC_HARDIRQS # include @@ -256,8 +263,12 @@ #include #include #include +#include #include +#define CREATE_TRACE_POINTS +#include + /* * Configuration information */ @@ -266,6 +277,8 @@ #define SEC_XFER_SIZE 512 #define EXTRACT_SIZE 10 +#define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long)) + /* * The minimum number of bits of entropy before we wake up a read on * /dev/random. Should be enough to do a significant reseed. @@ -420,8 +433,10 @@ struct entropy_store { /* read-write data: */ spinlock_t lock; unsigned add_ptr; + unsigned input_rotate; int entropy_count; - int input_rotate; + int entropy_total; + unsigned int initialized:1; __u8 last_data[EXTRACT_SIZE]; }; @@ -454,6 +469,10 @@ static struct entropy_store nonblocking_pool = { .pool = nonblocking_pool_data }; +static __u32 const twist_table[8] = { + 0x00000000, 0x3b6e20c8, 0x76dc4190, 0x4db26158, + 0xedb88320, 0xd6d6a3e8, 0x9b64c2b0, 0xa00ae278 }; + /* * This function adds bytes into the entropy "pool". It does not * update the entropy estimate. The caller should call @@ -464,29 +483,24 @@ static struct entropy_store nonblocking_pool = { * it's cheap to do so and helps slightly in the expected case where * the entropy is concentrated in the low-order bits. */ -static void mix_pool_bytes_extract(struct entropy_store *r, const void *in, - int nbytes, __u8 out[64]) +static void _mix_pool_bytes(struct entropy_store *r, const void *in, + int nbytes, __u8 out[64]) { - static __u32 const twist_table[8] = { - 0x00000000, 0x3b6e20c8, 0x76dc4190, 0x4db26158, - 0xedb88320, 0xd6d6a3e8, 0x9b64c2b0, 0xa00ae278 }; unsigned long i, j, tap1, tap2, tap3, tap4, tap5; int input_rotate; int wordmask = r->poolinfo->poolwords - 1; const char *bytes = in; __u32 w; - unsigned long flags; - /* Taps are constant, so we can load them without holding r->lock. */ tap1 = r->poolinfo->tap1; tap2 = r->poolinfo->tap2; tap3 = r->poolinfo->tap3; tap4 = r->poolinfo->tap4; tap5 = r->poolinfo->tap5; - spin_lock_irqsave(&r->lock, flags); - input_rotate = r->input_rotate; - i = r->add_ptr; + smp_rmb(); + input_rotate = ACCESS_ONCE(r->input_rotate); + i = ACCESS_ONCE(r->add_ptr); /* mix one byte at a time to simplify size handling and churn faster */ while (nbytes--) { @@ -513,19 +527,61 @@ static void mix_pool_bytes_extract(struct entropy_store *r, const void *in, input_rotate += i ? 7 : 14; } - r->input_rotate = input_rotate; - r->add_ptr = i; + ACCESS_ONCE(r->input_rotate) = input_rotate; + ACCESS_ONCE(r->add_ptr) = i; + smp_wmb(); if (out) for (j = 0; j < 16; j++) ((__u32 *)out)[j] = r->pool[(i - j) & wordmask]; +} + +static void __mix_pool_bytes(struct entropy_store *r, const void *in, + int nbytes, __u8 out[64]) +{ + trace_mix_pool_bytes_nolock(r->name, nbytes, _RET_IP_); + _mix_pool_bytes(r, in, nbytes, out); +} + +static void mix_pool_bytes(struct entropy_store *r, const void *in, + int nbytes, __u8 out[64]) +{ + unsigned long flags; + trace_mix_pool_bytes(r->name, nbytes, _RET_IP_); + spin_lock_irqsave(&r->lock, flags); + _mix_pool_bytes(r, in, nbytes, out); spin_unlock_irqrestore(&r->lock, flags); } -static void mix_pool_bytes(struct entropy_store *r, const void *in, int bytes) +struct fast_pool { + __u32 pool[4]; + unsigned long last; + unsigned short count; + unsigned char rotate; + unsigned char last_timer_intr; +}; + +/* + * This is a fast mixing routine used by the interrupt randomness + * collector. It's hardcoded for an 128 bit pool and assumes that any + * locks that might be needed are taken by the caller. + */ +static void fast_mix(struct fast_pool *f, const void *in, int nbytes) { - mix_pool_bytes_extract(r, in, bytes, NULL); + const char *bytes = in; + __u32 w; + unsigned i = f->count; + unsigned input_rotate = f->rotate; + + while (nbytes--) { + w = rol32(*bytes++, input_rotate & 31) ^ f->pool[i & 3] ^ + f->pool[(i + 1) & 3]; + f->pool[i & 3] = (w >> 3) ^ twist_table[w & 7]; + input_rotate += (i++ & 3) ? 7 : 14; + } + f->count = i; + f->rotate = input_rotate; } /* @@ -533,30 +589,38 @@ static void mix_pool_bytes(struct entropy_store *r, const void *in, int bytes) */ static void credit_entropy_bits(struct entropy_store *r, int nbits) { - unsigned long flags; - int entropy_count; + int entropy_count, orig; if (!nbits) return; - spin_lock_irqsave(&r->lock, flags); - DEBUG_ENT("added %d entropy credits to %s\n", nbits, r->name); - entropy_count = r->entropy_count; +retry: + entropy_count = orig = ACCESS_ONCE(r->entropy_count); entropy_count += nbits; + if (entropy_count < 0) { DEBUG_ENT("negative entropy/overflow\n"); entropy_count = 0; } else if (entropy_count > r->poolinfo->POOLBITS) entropy_count = r->poolinfo->POOLBITS; - r->entropy_count = entropy_count; + if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig) + goto retry; + + if (!r->initialized && nbits > 0) { + r->entropy_total += nbits; + if (r->entropy_total > 128) + r->initialized = 1; + } + + trace_credit_entropy_bits(r->name, nbits, entropy_count, + r->entropy_total, _RET_IP_); /* should we wake readers? */ if (r == &input_pool && entropy_count >= random_read_wakeup_thresh) { wake_up_interruptible(&random_read_wait); kill_fasync(&fasync, SIGIO, POLL_IN); } - spin_unlock_irqrestore(&r->lock, flags); } /********************************************************************* @@ -572,42 +636,24 @@ struct timer_rand_state { unsigned dont_count_entropy:1; }; -#ifndef CONFIG_GENERIC_HARDIRQS - -static struct timer_rand_state *irq_timer_state[NR_IRQS]; - -static struct timer_rand_state *get_timer_rand_state(unsigned int irq) -{ - return irq_timer_state[irq]; -} - -static void set_timer_rand_state(unsigned int irq, - struct timer_rand_state *state) -{ - irq_timer_state[irq] = state; -} - -#else - -static struct timer_rand_state *get_timer_rand_state(unsigned int irq) -{ - struct irq_desc *desc; - - desc = irq_to_desc(irq); - - return desc->timer_rand_state; -} - -static void set_timer_rand_state(unsigned int irq, - struct timer_rand_state *state) +/* + * Add device- or boot-specific data to the input and nonblocking + * pools to help initialize them to unique values. + * + * None of this adds any entropy, it is meant to avoid the + * problem of the nonblocking pool having similar initial state + * across largely identical devices. + */ +void add_device_randomness(const void *buf, unsigned int size) { - struct irq_desc *desc; + unsigned long time = get_cycles() ^ jiffies; - desc = irq_to_desc(irq); - - desc->timer_rand_state = state; + mix_pool_bytes(&input_pool, buf, size, NULL); + mix_pool_bytes(&input_pool, &time, sizeof(time), NULL); + mix_pool_bytes(&nonblocking_pool, buf, size, NULL); + mix_pool_bytes(&nonblocking_pool, &time, sizeof(time), NULL); } -#endif +EXPORT_SYMBOL(add_device_randomness); static struct timer_rand_state input_timer_state; @@ -637,13 +683,9 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num) goto out; sample.jiffies = jiffies; - - /* Use arch random value, fall back to cycles */ - if (!arch_get_random_int(&sample.cycles)) - sample.cycles = get_cycles(); - + sample.cycles = get_cycles(); sample.num = num; - mix_pool_bytes(&input_pool, &sample, sizeof(sample)); + mix_pool_bytes(&input_pool, &sample, sizeof(sample), NULL); /* * Calculate number of bits of randomness we probably added. @@ -700,17 +742,48 @@ void add_input_randomness(unsigned int type, unsigned int code, } EXPORT_SYMBOL_GPL(add_input_randomness); -void add_interrupt_randomness(int irq) +static DEFINE_PER_CPU(struct fast_pool, irq_randomness); + +void add_interrupt_randomness(int irq, int irq_flags) { - struct timer_rand_state *state; + struct entropy_store *r; + struct fast_pool *fast_pool = &__get_cpu_var(irq_randomness); + struct pt_regs *regs = get_irq_regs(); + unsigned long now = jiffies; + __u32 input[4], cycles = get_cycles(); + + input[0] = cycles ^ jiffies; + input[1] = irq; + if (regs) { + __u64 ip = instruction_pointer(regs); + input[2] = ip; + input[3] = ip >> 32; + } - state = get_timer_rand_state(irq); + fast_mix(fast_pool, input, sizeof(input)); - if (state == NULL) + if ((fast_pool->count & 1023) && + !time_after(now, fast_pool->last + HZ)) return; - DEBUG_ENT("irq event %d\n", irq); - add_timer_randomness(state, 0x100 + irq); + fast_pool->last = now; + + r = nonblocking_pool.initialized ? &input_pool : &nonblocking_pool; + __mix_pool_bytes(r, &fast_pool->pool, sizeof(fast_pool->pool), NULL); + /* + * If we don't have a valid cycle counter, and we see + * back-to-back timer interrupts, then skip giving credit for + * any entropy. + */ + if (cycles == 0) { + if (irq_flags & __IRQF_TIMER) { + if (fast_pool->last_timer_intr) + return; + fast_pool->last_timer_intr = 1; + } else + fast_pool->last_timer_intr = 0; + } + credit_entropy_bits(r, 1); } #ifdef CONFIG_BLOCK @@ -742,7 +815,7 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf, */ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes) { - __u32 tmp[OUTPUT_POOL_WORDS]; + __u32 tmp[OUTPUT_POOL_WORDS]; if (r->pull && r->entropy_count < nbytes * 8 && r->entropy_count < r->poolinfo->POOLBITS) { @@ -761,7 +834,7 @@ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes) bytes = extract_entropy(r->pull, tmp, bytes, random_read_wakeup_thresh / 8, rsvd); - mix_pool_bytes(r, tmp, bytes); + mix_pool_bytes(r, tmp, bytes, NULL); credit_entropy_bits(r, bytes*8); } } @@ -820,13 +893,19 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min, static void extract_buf(struct entropy_store *r, __u8 *out) { int i; - __u32 hash[5], workspace[SHA_WORKSPACE_WORDS]; + union { + __u32 w[5]; + unsigned long l[LONGS(EXTRACT_SIZE)]; + } hash; + __u32 workspace[SHA_WORKSPACE_WORDS]; __u8 extract[64]; + unsigned long flags; /* Generate a hash across the pool, 16 words (512 bits) at a time */ - sha_init(hash); + sha_init(hash.w); + spin_lock_irqsave(&r->lock, flags); for (i = 0; i < r->poolinfo->poolwords; i += 16) - sha_transform(hash, (__u8 *)(r->pool + i), workspace); + sha_transform(hash.w, (__u8 *)(r->pool + i), workspace); /* * We mix the hash back into the pool to prevent backtracking @@ -837,13 +916,14 @@ static void extract_buf(struct entropy_store *r, __u8 *out) * brute-forcing the feedback as hard as brute-forcing the * hash. */ - mix_pool_bytes_extract(r, hash, sizeof(hash), extract); + __mix_pool_bytes(r, hash.w, sizeof(hash.w), extract); + spin_unlock_irqrestore(&r->lock, flags); /* * To avoid duplicates, we atomically extract a portion of the * pool while mixing, and hash one final time. */ - sha_transform(hash, extract, workspace); + sha_transform(hash.w, extract, workspace); memset(extract, 0, sizeof(extract)); memset(workspace, 0, sizeof(workspace)); @@ -852,20 +932,32 @@ static void extract_buf(struct entropy_store *r, __u8 *out) * pattern, we fold it in half. Thus, we always feed back * twice as much data as we output. */ - hash[0] ^= hash[3]; - hash[1] ^= hash[4]; - hash[2] ^= rol32(hash[2], 16); - memcpy(out, hash, EXTRACT_SIZE); - memset(hash, 0, sizeof(hash)); + hash.w[0] ^= hash.w[3]; + hash.w[1] ^= hash.w[4]; + hash.w[2] ^= rol32(hash.w[2], 16); + + /* + * If we have a architectural hardware random number + * generator, mix that in, too. + */ + for (i = 0; i < LONGS(EXTRACT_SIZE); i++) { + unsigned long v; + if (!arch_get_random_long(&v)) + break; + hash.l[i] ^= v; + } + + memcpy(out, &hash, EXTRACT_SIZE); + memset(&hash, 0, sizeof(hash)); } static ssize_t extract_entropy(struct entropy_store *r, void *buf, - size_t nbytes, int min, int reserved) + size_t nbytes, int min, int reserved) { ssize_t ret = 0, i; __u8 tmp[EXTRACT_SIZE]; - unsigned long flags; + trace_extract_entropy(r->name, nbytes, r->entropy_count, _RET_IP_); xfer_secondary_pool(r, nbytes); nbytes = account(r, nbytes, min, reserved); @@ -873,6 +965,8 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf, extract_buf(r, tmp); if (fips_enabled) { + unsigned long flags; + spin_lock_irqsave(&r->lock, flags); if (!memcmp(tmp, r->last_data, EXTRACT_SIZE)) panic("Hardware RNG duplicated output!\n"); @@ -898,6 +992,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf, ssize_t ret = 0, i; __u8 tmp[EXTRACT_SIZE]; + trace_extract_entropy_user(r->name, nbytes, r->entropy_count, _RET_IP_); xfer_secondary_pool(r, nbytes); nbytes = account(r, nbytes, 0, 0); @@ -931,17 +1026,35 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf, /* * This function is the exported kernel interface. It returns some - * number of good random numbers, suitable for seeding TCP sequence - * numbers, etc. + * number of good random numbers, suitable for key generation, seeding + * TCP sequence numbers, etc. It does not use the hw random number + * generator, if available; use get_random_bytes_arch() for that. */ void get_random_bytes(void *buf, int nbytes) { + extract_entropy(&nonblocking_pool, buf, nbytes, 0, 0); +} +EXPORT_SYMBOL(get_random_bytes); + +/* + * This function will use the architecture-specific hardware random + * number generator if it is available. The arch-specific hw RNG will + * almost certainly be faster than what we can do in software, but it + * is impossible to verify that it is implemented securely (as + * opposed, to, say, the AES encryption of a sequence number using a + * key known by the NSA). So it's useful if we need the speed, but + * only if we're willing to trust the hardware manufacturer not to + * have put in a back door. + */ +void get_random_bytes_arch(void *buf, int nbytes) +{ char *p = buf; + trace_get_random_bytes(nbytes, _RET_IP_); while (nbytes) { unsigned long v; int chunk = min(nbytes, (int)sizeof(unsigned long)); - + if (!arch_get_random_long(&v)) break; @@ -950,9 +1063,11 @@ void get_random_bytes(void *buf, int nbytes) nbytes -= chunk; } - extract_entropy(&nonblocking_pool, p, nbytes, 0, 0); + if (nbytes) + extract_entropy(&nonblocking_pool, p, nbytes, 0, 0); } -EXPORT_SYMBOL(get_random_bytes); +EXPORT_SYMBOL(get_random_bytes_arch); + /* * init_std_data - initialize pool with system data @@ -966,23 +1081,30 @@ EXPORT_SYMBOL(get_random_bytes); static void init_std_data(struct entropy_store *r) { int i; - ktime_t now; - unsigned long flags; + ktime_t now = ktime_get_real(); + unsigned long rv; - spin_lock_irqsave(&r->lock, flags); r->entropy_count = 0; - spin_unlock_irqrestore(&r->lock, flags); - - now = ktime_get_real(); - mix_pool_bytes(r, &now, sizeof(now)); - for (i = r->poolinfo->POOLBYTES; i > 0; i -= sizeof flags) { - if (!arch_get_random_long(&flags)) + r->entropy_total = 0; + mix_pool_bytes(r, &now, sizeof(now), NULL); + for (i = r->poolinfo->POOLBYTES; i > 0; i -= sizeof(rv)) { + if (!arch_get_random_long(&rv)) break; - mix_pool_bytes(r, &flags, sizeof(flags)); + mix_pool_bytes(r, &rv, sizeof(rv), NULL); } - mix_pool_bytes(r, utsname(), sizeof(*(utsname()))); + mix_pool_bytes(r, utsname(), sizeof(*(utsname())), NULL); } +/* + * Note that setup_arch() may call add_device_randomness() + * long before we get here. This allows seeding of the pools + * with some platform dependent data very early in the boot + * process. But it limits our options here. We must use + * statically allocated structures that already have all + * initializations complete at compile time. We should also + * take care not to overwrite the precious per platform data + * we were given. + */ static int rand_initialize(void) { init_std_data(&input_pool); @@ -992,24 +1114,6 @@ static int rand_initialize(void) } module_init(rand_initialize); -void rand_initialize_irq(int irq) -{ - struct timer_rand_state *state; - - state = get_timer_rand_state(irq); - - if (state) - return; - - /* - * If kzalloc returns null, we just won't use that entropy - * source. - */ - state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL); - if (state) - set_timer_rand_state(irq, state); -} - #ifdef CONFIG_BLOCK void rand_initialize_disk(struct gendisk *disk) { @@ -1117,7 +1221,7 @@ write_pool(struct entropy_store *r, const char __user *buffer, size_t count) count -= bytes; p += bytes; - mix_pool_bytes(r, buf, bytes); + mix_pool_bytes(r, buf, bytes, NULL); cond_resched(); } @@ -1279,6 +1383,7 @@ static int proc_do_uuid(ctl_table *table, int write, } static int sysctl_poolsize = INPUT_POOL_WORDS * 32; +extern ctl_table random_table[]; ctl_table random_table[] = { { .procname = "poolsize", @@ -1344,7 +1449,7 @@ late_initcall(random_int_secret_init); * value is not cryptographically secure but for several uses the cost of * depleting entropy is too high */ -DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash); +static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash); unsigned int get_random_int(void) { __u32 *hash; diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 3f99b90..7f0b5ca 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -25,7 +25,6 @@ menu "Common Clock Framework" config COMMON_CLK_DEBUG bool "DebugFS representation of clock tree" - depends on COMMON_CLK select DEBUG_FS ---help--- Creates a directory hierchy in debugfs for visualizing the clk diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index c87fdd7..efdfd00 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -465,6 +465,9 @@ static void __clk_disable(struct clk *clk) if (!clk) return; + if (WARN_ON(IS_ERR(clk))) + return; + if (WARN_ON(clk->enable_count == 0)) return; diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c index 67b97c5..a8bd031 100644 --- a/drivers/crypto/n2_core.c +++ b/drivers/crypto/n2_core.c @@ -1610,8 +1610,7 @@ static int spu_map_ino(struct platform_device *dev, struct spu_mdesc_info *ip, sprintf(p->irq_name, "%s-%d", irq_name, index); - return request_irq(p->irq, handler, IRQF_SAMPLE_RANDOM, - p->irq_name, p); + return request_irq(p->irq, handler, 0, p->irq_name, p); } static struct kmem_cache *queue_cache[2]; diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index d45cf1b..d06ea29 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -53,6 +53,7 @@ config AMBA_PL08X bool "ARM PrimeCell PL080 or PL081 support" depends on ARM_AMBA && EXPERIMENTAL select DMA_ENGINE + select DMA_VIRTUAL_CHANNELS help Platform has a PL08x DMAC device which can provide DMA engine support @@ -269,6 +270,7 @@ config DMA_SA11X0 tristate "SA-11x0 DMA support" depends on ARCH_SA1100 select DMA_ENGINE + select DMA_VIRTUAL_CHANNELS help Support the DMA engine found on Intel StrongARM SA-1100 and SA-1110 SoCs. This DMA engine can only be used with on-chip @@ -284,9 +286,18 @@ config MMP_TDMA Say Y here if you enabled MMP ADMA, otherwise say N. +config DMA_OMAP + tristate "OMAP DMA support" + depends on ARCH_OMAP + select DMA_ENGINE + select DMA_VIRTUAL_CHANNELS + config DMA_ENGINE bool +config DMA_VIRTUAL_CHANNELS + tristate + comment "DMA Clients" depends on DMA_ENGINE diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index 640356a..4cf6b12 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -2,6 +2,7 @@ ccflags-$(CONFIG_DMADEVICES_DEBUG) := -DDEBUG ccflags-$(CONFIG_DMADEVICES_VDEBUG) += -DVERBOSE_DEBUG obj-$(CONFIG_DMA_ENGINE) += dmaengine.o +obj-$(CONFIG_DMA_VIRTUAL_CHANNELS) += virt-dma.o obj-$(CONFIG_NET_DMA) += iovlock.o obj-$(CONFIG_INTEL_MID_DMAC) += intel_mid_dma.o obj-$(CONFIG_DMATEST) += dmatest.o @@ -30,3 +31,4 @@ obj-$(CONFIG_AMBA_PL08X) += amba-pl08x.o obj-$(CONFIG_EP93XX_DMA) += ep93xx_dma.o obj-$(CONFIG_DMA_SA11X0) += sa11x0-dma.o obj-$(CONFIG_MMP_TDMA) += mmp_tdma.o +obj-$(CONFIG_DMA_OMAP) += omap-dma.o diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 49ecbbb..6fbeebb 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -86,10 +86,12 @@ #include #include "dmaengine.h" +#include "virt-dma.h" #define DRIVER_NAME "pl08xdmac" static struct amba_driver pl08x_amba_driver; +struct pl08x_driver_data; /** * struct vendor_data - vendor-specific config parameters for PL08x derivatives @@ -119,6 +121,123 @@ struct pl08x_lli { }; /** + * struct pl08x_bus_data - information of source or destination + * busses for a transfer + * @addr: current address + * @maxwidth: the maximum width of a transfer on this bus + * @buswidth: the width of this bus in bytes: 1, 2 or 4 + */ +struct pl08x_bus_data { + dma_addr_t addr; + u8 maxwidth; + u8 buswidth; +}; + +/** + * struct pl08x_phy_chan - holder for the physical channels + * @id: physical index to this channel + * @lock: a lock to use when altering an instance of this struct + * @serving: the virtual channel currently being served by this physical + * channel + * @locked: channel unavailable for the system, e.g. dedicated to secure + * world + */ +struct pl08x_phy_chan { + unsigned int id; + void __iomem *base; + spinlock_t lock; + struct pl08x_dma_chan *serving; + bool locked; +}; + +/** + * struct pl08x_sg - structure containing data per sg + * @src_addr: src address of sg + * @dst_addr: dst address of sg + * @len: transfer len in bytes + * @node: node for txd's dsg_list + */ +struct pl08x_sg { + dma_addr_t src_addr; + dma_addr_t dst_addr; + size_t len; + struct list_head node; +}; + +/** + * struct pl08x_txd - wrapper for struct dma_async_tx_descriptor + * @vd: virtual DMA descriptor + * @dsg_list: list of children sg's + * @llis_bus: DMA memory address (physical) start for the LLIs + * @llis_va: virtual memory address start for the LLIs + * @cctl: control reg values for current txd + * @ccfg: config reg values for current txd + * @done: this marks completed descriptors, which should not have their + * mux released. + */ +struct pl08x_txd { + struct virt_dma_desc vd; + struct list_head dsg_list; + dma_addr_t llis_bus; + struct pl08x_lli *llis_va; + /* Default cctl value for LLIs */ + u32 cctl; + /* + * Settings to be put into the physical channel when we + * trigger this txd. Other registers are in llis_va[0]. + */ + u32 ccfg; + bool done; +}; + +/** + * struct pl08x_dma_chan_state - holds the PL08x specific virtual channel + * states + * @PL08X_CHAN_IDLE: the channel is idle + * @PL08X_CHAN_RUNNING: the channel has allocated a physical transport + * channel and is running a transfer on it + * @PL08X_CHAN_PAUSED: the channel has allocated a physical transport + * channel, but the transfer is currently paused + * @PL08X_CHAN_WAITING: the channel is waiting for a physical transport + * channel to become available (only pertains to memcpy channels) + */ +enum pl08x_dma_chan_state { + PL08X_CHAN_IDLE, + PL08X_CHAN_RUNNING, + PL08X_CHAN_PAUSED, + PL08X_CHAN_WAITING, +}; + +/** + * struct pl08x_dma_chan - this structure wraps a DMA ENGINE channel + * @vc: wrappped virtual channel + * @phychan: the physical channel utilized by this channel, if there is one + * @name: name of channel + * @cd: channel platform data + * @runtime_addr: address for RX/TX according to the runtime config + * @at: active transaction on this channel + * @lock: a lock for this channel data + * @host: a pointer to the host (internal use) + * @state: whether the channel is idle, paused, running etc + * @slave: whether this channel is a device (slave) or for memcpy + * @signal: the physical DMA request signal which this channel is using + * @mux_use: count of descriptors using this DMA request signal setting + */ +struct pl08x_dma_chan { + struct virt_dma_chan vc; + struct pl08x_phy_chan *phychan; + const char *name; + const struct pl08x_channel_data *cd; + struct dma_slave_config cfg; + struct pl08x_txd *at; + struct pl08x_driver_data *host; + enum pl08x_dma_chan_state state; + bool slave; + int signal; + unsigned mux_use; +}; + +/** * struct pl08x_driver_data - the local state holder for the PL08x * @slave: slave engine for this instance * @memcpy: memcpy engine for this instance @@ -128,7 +247,6 @@ struct pl08x_lli { * @pd: platform data passed in from the platform/machine * @phy_chans: array of data for the physical channels * @pool: a pool for the LLI descriptors - * @pool_ctr: counter of LLIs in the pool * @lli_buses: bitmask to or in to LLI pointer selecting AHB port for LLI * fetches * @mem_buses: set to indicate memory transfers on AHB2. @@ -143,10 +261,8 @@ struct pl08x_driver_data { struct pl08x_platform_data *pd; struct pl08x_phy_chan *phy_chans; struct dma_pool *pool; - int pool_ctr; u8 lli_buses; u8 mem_buses; - spinlock_t lock; }; /* @@ -162,12 +278,51 @@ struct pl08x_driver_data { static inline struct pl08x_dma_chan *to_pl08x_chan(struct dma_chan *chan) { - return container_of(chan, struct pl08x_dma_chan, chan); + return container_of(chan, struct pl08x_dma_chan, vc.chan); } static inline struct pl08x_txd *to_pl08x_txd(struct dma_async_tx_descriptor *tx) { - return container_of(tx, struct pl08x_txd, tx); + return container_of(tx, struct pl08x_txd, vd.tx); +} + +/* + * Mux handling. + * + * This gives us the DMA request input to the PL08x primecell which the + * peripheral described by the channel data will be routed to, possibly + * via a board/SoC specific external MUX. One important point to note + * here is that this does not depend on the physical channel. + */ +static int pl08x_request_mux(struct pl08x_dma_chan *plchan) +{ + const struct pl08x_platform_data *pd = plchan->host->pd; + int ret; + + if (plchan->mux_use++ == 0 && pd->get_signal) { + ret = pd->get_signal(plchan->cd); + if (ret < 0) { + plchan->mux_use = 0; + return ret; + } + + plchan->signal = ret; + } + return 0; +} + +static void pl08x_release_mux(struct pl08x_dma_chan *plchan) +{ + const struct pl08x_platform_data *pd = plchan->host->pd; + + if (plchan->signal >= 0) { + WARN_ON(plchan->mux_use == 0); + + if (--plchan->mux_use == 0 && pd->put_signal) { + pd->put_signal(plchan->cd, plchan->signal); + plchan->signal = -1; + } + } } /* @@ -189,20 +344,25 @@ static int pl08x_phy_channel_busy(struct pl08x_phy_chan *ch) * been set when the LLIs were constructed. Poke them into the hardware * and start the transfer. */ -static void pl08x_start_txd(struct pl08x_dma_chan *plchan, - struct pl08x_txd *txd) +static void pl08x_start_next_txd(struct pl08x_dma_chan *plchan) { struct pl08x_driver_data *pl08x = plchan->host; struct pl08x_phy_chan *phychan = plchan->phychan; - struct pl08x_lli *lli = &txd->llis_va[0]; + struct virt_dma_desc *vd = vchan_next_desc(&plchan->vc); + struct pl08x_txd *txd = to_pl08x_txd(&vd->tx); + struct pl08x_lli *lli; u32 val; + list_del(&txd->vd.node); + plchan->at = txd; /* Wait for channel inactive */ while (pl08x_phy_channel_busy(phychan)) cpu_relax(); + lli = &txd->llis_va[0]; + dev_vdbg(&pl08x->adev->dev, "WRITE channel %d: csrc=0x%08x, cdst=0x%08x, " "clli=0x%08x, cctl=0x%08x, ccfg=0x%08x\n", @@ -311,10 +471,8 @@ static u32 pl08x_getbytes_chan(struct pl08x_dma_chan *plchan) { struct pl08x_phy_chan *ch; struct pl08x_txd *txd; - unsigned long flags; size_t bytes = 0; - spin_lock_irqsave(&plchan->lock, flags); ch = plchan->phychan; txd = plchan->at; @@ -354,18 +512,6 @@ static u32 pl08x_getbytes_chan(struct pl08x_dma_chan *plchan) } } - /* Sum up all queued transactions */ - if (!list_empty(&plchan->pend_list)) { - struct pl08x_txd *txdi; - list_for_each_entry(txdi, &plchan->pend_list, node) { - struct pl08x_sg *dsg; - list_for_each_entry(dsg, &txd->dsg_list, node) - bytes += dsg->len; - } - } - - spin_unlock_irqrestore(&plchan->lock, flags); - return bytes; } @@ -391,7 +537,6 @@ pl08x_get_phy_channel(struct pl08x_driver_data *pl08x, if (!ch->locked && !ch->serving) { ch->serving = virt_chan; - ch->signal = -1; spin_unlock_irqrestore(&ch->lock, flags); break; } @@ -404,25 +549,114 @@ pl08x_get_phy_channel(struct pl08x_driver_data *pl08x, return NULL; } - pm_runtime_get_sync(&pl08x->adev->dev); return ch; } +/* Mark the physical channel as free. Note, this write is atomic. */ static inline void pl08x_put_phy_channel(struct pl08x_driver_data *pl08x, struct pl08x_phy_chan *ch) { - unsigned long flags; + ch->serving = NULL; +} + +/* + * Try to allocate a physical channel. When successful, assign it to + * this virtual channel, and initiate the next descriptor. The + * virtual channel lock must be held at this point. + */ +static void pl08x_phy_alloc_and_start(struct pl08x_dma_chan *plchan) +{ + struct pl08x_driver_data *pl08x = plchan->host; + struct pl08x_phy_chan *ch; - spin_lock_irqsave(&ch->lock, flags); + ch = pl08x_get_phy_channel(pl08x, plchan); + if (!ch) { + dev_dbg(&pl08x->adev->dev, "no physical channel available for xfer on %s\n", plchan->name); + plchan->state = PL08X_CHAN_WAITING; + return; + } - /* Stop the channel and clear its interrupts */ - pl08x_terminate_phy_chan(pl08x, ch); + dev_dbg(&pl08x->adev->dev, "allocated physical channel %d for xfer on %s\n", + ch->id, plchan->name); - pm_runtime_put(&pl08x->adev->dev); + plchan->phychan = ch; + plchan->state = PL08X_CHAN_RUNNING; + pl08x_start_next_txd(plchan); +} - /* Mark it as free */ - ch->serving = NULL; - spin_unlock_irqrestore(&ch->lock, flags); +static void pl08x_phy_reassign_start(struct pl08x_phy_chan *ch, + struct pl08x_dma_chan *plchan) +{ + struct pl08x_driver_data *pl08x = plchan->host; + + dev_dbg(&pl08x->adev->dev, "reassigned physical channel %d for xfer on %s\n", + ch->id, plchan->name); + + /* + * We do this without taking the lock; we're really only concerned + * about whether this pointer is NULL or not, and we're guaranteed + * that this will only be called when it _already_ is non-NULL. + */ + ch->serving = plchan; + plchan->phychan = ch; + plchan->state = PL08X_CHAN_RUNNING; + pl08x_start_next_txd(plchan); +} + +/* + * Free a physical DMA channel, potentially reallocating it to another + * virtual channel if we have any pending. + */ +static void pl08x_phy_free(struct pl08x_dma_chan *plchan) +{ + struct pl08x_driver_data *pl08x = plchan->host; + struct pl08x_dma_chan *p, *next; + + retry: + next = NULL; + + /* Find a waiting virtual channel for the next transfer. */ + list_for_each_entry(p, &pl08x->memcpy.channels, vc.chan.device_node) + if (p->state == PL08X_CHAN_WAITING) { + next = p; + break; + } + + if (!next) { + list_for_each_entry(p, &pl08x->slave.channels, vc.chan.device_node) + if (p->state == PL08X_CHAN_WAITING) { + next = p; + break; + } + } + + /* Ensure that the physical channel is stopped */ + pl08x_terminate_phy_chan(pl08x, plchan->phychan); + + if (next) { + bool success; + + /* + * Eww. We know this isn't going to deadlock + * but lockdep probably doesn't. + */ + spin_lock(&next->vc.lock); + /* Re-check the state now that we have the lock */ + success = next->state == PL08X_CHAN_WAITING; + if (success) + pl08x_phy_reassign_start(plchan->phychan, next); + spin_unlock(&next->vc.lock); + + /* If the state changed, try to find another channel */ + if (!success) + goto retry; + } else { + /* No more jobs, so free up the physical channel */ + pl08x_put_phy_channel(pl08x, plchan->phychan); + } + + plchan->phychan = NULL; + plchan->state = PL08X_CHAN_IDLE; } /* @@ -585,8 +819,6 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, return 0; } - pl08x->pool_ctr++; - bd.txd = txd; bd.lli_bus = (pl08x->lli_buses & PL08X_AHB2) ? PL080_LLI_LM_AHB2 : 0; cctl = txd->cctl; @@ -802,18 +1034,14 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, return num_llis; } -/* You should call this with the struct pl08x lock held */ static void pl08x_free_txd(struct pl08x_driver_data *pl08x, struct pl08x_txd *txd) { struct pl08x_sg *dsg, *_dsg; - /* Free the LLI */ if (txd->llis_va) dma_pool_free(pl08x->pool, txd->llis_va, txd->llis_bus); - pl08x->pool_ctr--; - list_for_each_entry_safe(dsg, _dsg, &txd->dsg_list, node) { list_del(&dsg->node); kfree(dsg); @@ -822,133 +1050,75 @@ static void pl08x_free_txd(struct pl08x_driver_data *pl08x, kfree(txd); } -static void pl08x_free_txd_list(struct pl08x_driver_data *pl08x, - struct pl08x_dma_chan *plchan) +static void pl08x_unmap_buffers(struct pl08x_txd *txd) { - struct pl08x_txd *txdi = NULL; - struct pl08x_txd *next; - - if (!list_empty(&plchan->pend_list)) { - list_for_each_entry_safe(txdi, - next, &plchan->pend_list, node) { - list_del(&txdi->node); - pl08x_free_txd(pl08x, txdi); + struct device *dev = txd->vd.tx.chan->device->dev; + struct pl08x_sg *dsg; + + if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) { + if (txd->vd.tx.flags & DMA_COMPL_SRC_UNMAP_SINGLE) + list_for_each_entry(dsg, &txd->dsg_list, node) + dma_unmap_single(dev, dsg->src_addr, dsg->len, + DMA_TO_DEVICE); + else { + list_for_each_entry(dsg, &txd->dsg_list, node) + dma_unmap_page(dev, dsg->src_addr, dsg->len, + DMA_TO_DEVICE); } } + if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) { + if (txd->vd.tx.flags & DMA_COMPL_DEST_UNMAP_SINGLE) + list_for_each_entry(dsg, &txd->dsg_list, node) + dma_unmap_single(dev, dsg->dst_addr, dsg->len, + DMA_FROM_DEVICE); + else + list_for_each_entry(dsg, &txd->dsg_list, node) + dma_unmap_page(dev, dsg->dst_addr, dsg->len, + DMA_FROM_DEVICE); + } } -/* - * The DMA ENGINE API - */ -static int pl08x_alloc_chan_resources(struct dma_chan *chan) +static void pl08x_desc_free(struct virt_dma_desc *vd) { - return 0; -} + struct pl08x_txd *txd = to_pl08x_txd(&vd->tx); + struct pl08x_dma_chan *plchan = to_pl08x_chan(vd->tx.chan); -static void pl08x_free_chan_resources(struct dma_chan *chan) -{ + if (!plchan->slave) + pl08x_unmap_buffers(txd); + + if (!txd->done) + pl08x_release_mux(plchan); + + pl08x_free_txd(plchan->host, txd); } -/* - * This should be called with the channel plchan->lock held - */ -static int prep_phy_channel(struct pl08x_dma_chan *plchan, - struct pl08x_txd *txd) +static void pl08x_free_txd_list(struct pl08x_driver_data *pl08x, + struct pl08x_dma_chan *plchan) { - struct pl08x_driver_data *pl08x = plchan->host; - struct pl08x_phy_chan *ch; - int ret; - - /* Check if we already have a channel */ - if (plchan->phychan) { - ch = plchan->phychan; - goto got_channel; - } + LIST_HEAD(head); + struct pl08x_txd *txd; - ch = pl08x_get_phy_channel(pl08x, plchan); - if (!ch) { - /* No physical channel available, cope with it */ - dev_dbg(&pl08x->adev->dev, "no physical channel available for xfer on %s\n", plchan->name); - return -EBUSY; - } + vchan_get_all_descriptors(&plchan->vc, &head); - /* - * OK we have a physical channel: for memcpy() this is all we - * need, but for slaves the physical signals may be muxed! - * Can the platform allow us to use this channel? - */ - if (plchan->slave && pl08x->pd->get_signal) { - ret = pl08x->pd->get_signal(plchan); - if (ret < 0) { - dev_dbg(&pl08x->adev->dev, - "unable to use physical channel %d for transfer on %s due to platform restrictions\n", - ch->id, plchan->name); - /* Release physical channel & return */ - pl08x_put_phy_channel(pl08x, ch); - return -EBUSY; - } - ch->signal = ret; + while (!list_empty(&head)) { + txd = list_first_entry(&head, struct pl08x_txd, vd.node); + list_del(&txd->vd.node); + pl08x_desc_free(&txd->vd); } - - plchan->phychan = ch; - dev_dbg(&pl08x->adev->dev, "allocated physical channel %d and signal %d for xfer on %s\n", - ch->id, - ch->signal, - plchan->name); - -got_channel: - /* Assign the flow control signal to this channel */ - if (txd->direction == DMA_MEM_TO_DEV) - txd->ccfg |= ch->signal << PL080_CONFIG_DST_SEL_SHIFT; - else if (txd->direction == DMA_DEV_TO_MEM) - txd->ccfg |= ch->signal << PL080_CONFIG_SRC_SEL_SHIFT; - - plchan->phychan_hold++; - - return 0; } -static void release_phy_channel(struct pl08x_dma_chan *plchan) +/* + * The DMA ENGINE API + */ +static int pl08x_alloc_chan_resources(struct dma_chan *chan) { - struct pl08x_driver_data *pl08x = plchan->host; - - if ((plchan->phychan->signal >= 0) && pl08x->pd->put_signal) { - pl08x->pd->put_signal(plchan); - plchan->phychan->signal = -1; - } - pl08x_put_phy_channel(pl08x, plchan->phychan); - plchan->phychan = NULL; + return 0; } -static dma_cookie_t pl08x_tx_submit(struct dma_async_tx_descriptor *tx) +static void pl08x_free_chan_resources(struct dma_chan *chan) { - struct pl08x_dma_chan *plchan = to_pl08x_chan(tx->chan); - struct pl08x_txd *txd = to_pl08x_txd(tx); - unsigned long flags; - dma_cookie_t cookie; - - spin_lock_irqsave(&plchan->lock, flags); - cookie = dma_cookie_assign(tx); - - /* Put this onto the pending list */ - list_add_tail(&txd->node, &plchan->pend_list); - - /* - * If there was no physical channel available for this memcpy, - * stack the request up and indicate that the channel is waiting - * for a free physical channel. - */ - if (!plchan->slave && !plchan->phychan) { - /* Do this memcpy whenever there is a channel ready */ - plchan->state = PL08X_CHAN_WAITING; - plchan->waiting = txd; - } else { - plchan->phychan_hold--; - } - - spin_unlock_irqrestore(&plchan->lock, flags); - - return cookie; + /* Ensure all queued descriptors are freed */ + vchan_free_chan_resources(to_virt_chan(chan)); } static struct dma_async_tx_descriptor *pl08x_prep_dma_interrupt( @@ -968,23 +1138,53 @@ static enum dma_status pl08x_dma_tx_status(struct dma_chan *chan, dma_cookie_t cookie, struct dma_tx_state *txstate) { struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); + struct virt_dma_desc *vd; + unsigned long flags; enum dma_status ret; + size_t bytes = 0; ret = dma_cookie_status(chan, cookie, txstate); if (ret == DMA_SUCCESS) return ret; /* + * There's no point calculating the residue if there's + * no txstate to store the value. + */ + if (!txstate) { + if (plchan->state == PL08X_CHAN_PAUSED) + ret = DMA_PAUSED; + return ret; + } + + spin_lock_irqsave(&plchan->vc.lock, flags); + ret = dma_cookie_status(chan, cookie, txstate); + if (ret != DMA_SUCCESS) { + vd = vchan_find_desc(&plchan->vc, cookie); + if (vd) { + /* On the issued list, so hasn't been processed yet */ + struct pl08x_txd *txd = to_pl08x_txd(&vd->tx); + struct pl08x_sg *dsg; + + list_for_each_entry(dsg, &txd->dsg_list, node) + bytes += dsg->len; + } else { + bytes = pl08x_getbytes_chan(plchan); + } + } + spin_unlock_irqrestore(&plchan->vc.lock, flags); + + /* * This cookie not complete yet * Get number of bytes left in the active transactions and queue */ - dma_set_residue(txstate, pl08x_getbytes_chan(plchan)); + dma_set_residue(txstate, bytes); - if (plchan->state == PL08X_CHAN_PAUSED) - return DMA_PAUSED; + if (plchan->state == PL08X_CHAN_PAUSED && ret == DMA_IN_PROGRESS) + ret = DMA_PAUSED; /* Whether waiting or running, we're in progress */ - return DMA_IN_PROGRESS; + return ret; } /* PrimeCell DMA extension */ @@ -1080,38 +1280,14 @@ static u32 pl08x_burst(u32 maxburst) return burst_sizes[i].reg; } -static int dma_set_runtime_config(struct dma_chan *chan, - struct dma_slave_config *config) +static u32 pl08x_get_cctl(struct pl08x_dma_chan *plchan, + enum dma_slave_buswidth addr_width, u32 maxburst) { - struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); - struct pl08x_driver_data *pl08x = plchan->host; - enum dma_slave_buswidth addr_width; - u32 width, burst, maxburst; - u32 cctl = 0; - - if (!plchan->slave) - return -EINVAL; - - /* Transfer direction */ - plchan->runtime_direction = config->direction; - if (config->direction == DMA_MEM_TO_DEV) { - addr_width = config->dst_addr_width; - maxburst = config->dst_maxburst; - } else if (config->direction == DMA_DEV_TO_MEM) { - addr_width = config->src_addr_width; - maxburst = config->src_maxburst; - } else { - dev_err(&pl08x->adev->dev, - "bad runtime_config: alien transfer direction\n"); - return -EINVAL; - } + u32 width, burst, cctl = 0; width = pl08x_width(addr_width); - if (width == ~0) { - dev_err(&pl08x->adev->dev, - "bad runtime_config: alien address width\n"); - return -EINVAL; - } + if (width == ~0) + return ~0; cctl |= width << PL080_CONTROL_SWIDTH_SHIFT; cctl |= width << PL080_CONTROL_DWIDTH_SHIFT; @@ -1128,28 +1304,23 @@ static int dma_set_runtime_config(struct dma_chan *chan, cctl |= burst << PL080_CONTROL_SB_SIZE_SHIFT; cctl |= burst << PL080_CONTROL_DB_SIZE_SHIFT; - plchan->device_fc = config->device_fc; + return pl08x_cctl(cctl); +} - if (plchan->runtime_direction == DMA_DEV_TO_MEM) { - plchan->src_addr = config->src_addr; - plchan->src_cctl = pl08x_cctl(cctl) | PL080_CONTROL_DST_INCR | - pl08x_select_bus(plchan->cd->periph_buses, - pl08x->mem_buses); - } else { - plchan->dst_addr = config->dst_addr; - plchan->dst_cctl = pl08x_cctl(cctl) | PL080_CONTROL_SRC_INCR | - pl08x_select_bus(pl08x->mem_buses, - plchan->cd->periph_buses); - } +static int dma_set_runtime_config(struct dma_chan *chan, + struct dma_slave_config *config) +{ + struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); - dev_dbg(&pl08x->adev->dev, - "configured channel %s (%s) for %s, data width %d, " - "maxburst %d words, LE, CCTL=0x%08x\n", - dma_chan_name(chan), plchan->name, - (config->direction == DMA_DEV_TO_MEM) ? "RX" : "TX", - addr_width, - maxburst, - cctl); + if (!plchan->slave) + return -EINVAL; + + /* Reject definitely invalid configurations */ + if (config->src_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES || + config->dst_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES) + return -EINVAL; + + plchan->cfg = *config; return 0; } @@ -1163,95 +1334,19 @@ static void pl08x_issue_pending(struct dma_chan *chan) struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); unsigned long flags; - spin_lock_irqsave(&plchan->lock, flags); - /* Something is already active, or we're waiting for a channel... */ - if (plchan->at || plchan->state == PL08X_CHAN_WAITING) { - spin_unlock_irqrestore(&plchan->lock, flags); - return; - } - - /* Take the first element in the queue and execute it */ - if (!list_empty(&plchan->pend_list)) { - struct pl08x_txd *next; - - next = list_first_entry(&plchan->pend_list, - struct pl08x_txd, - node); - list_del(&next->node); - plchan->state = PL08X_CHAN_RUNNING; - - pl08x_start_txd(plchan, next); + spin_lock_irqsave(&plchan->vc.lock, flags); + if (vchan_issue_pending(&plchan->vc)) { + if (!plchan->phychan && plchan->state != PL08X_CHAN_WAITING) + pl08x_phy_alloc_and_start(plchan); } - - spin_unlock_irqrestore(&plchan->lock, flags); -} - -static int pl08x_prep_channel_resources(struct pl08x_dma_chan *plchan, - struct pl08x_txd *txd) -{ - struct pl08x_driver_data *pl08x = plchan->host; - unsigned long flags; - int num_llis, ret; - - num_llis = pl08x_fill_llis_for_desc(pl08x, txd); - if (!num_llis) { - spin_lock_irqsave(&plchan->lock, flags); - pl08x_free_txd(pl08x, txd); - spin_unlock_irqrestore(&plchan->lock, flags); - return -EINVAL; - } - - spin_lock_irqsave(&plchan->lock, flags); - - /* - * See if we already have a physical channel allocated, - * else this is the time to try to get one. - */ - ret = prep_phy_channel(plchan, txd); - if (ret) { - /* - * No physical channel was available. - * - * memcpy transfers can be sorted out at submission time. - * - * Slave transfers may have been denied due to platform - * channel muxing restrictions. Since there is no guarantee - * that this will ever be resolved, and the signal must be - * acquired AFTER acquiring the physical channel, we will let - * them be NACK:ed with -EBUSY here. The drivers can retry - * the prep() call if they are eager on doing this using DMA. - */ - if (plchan->slave) { - pl08x_free_txd_list(pl08x, plchan); - pl08x_free_txd(pl08x, txd); - spin_unlock_irqrestore(&plchan->lock, flags); - return -EBUSY; - } - } else - /* - * Else we're all set, paused and ready to roll, status - * will switch to PL08X_CHAN_RUNNING when we call - * issue_pending(). If there is something running on the - * channel already we don't change its state. - */ - if (plchan->state == PL08X_CHAN_IDLE) - plchan->state = PL08X_CHAN_PAUSED; - - spin_unlock_irqrestore(&plchan->lock, flags); - - return 0; + spin_unlock_irqrestore(&plchan->vc.lock, flags); } -static struct pl08x_txd *pl08x_get_txd(struct pl08x_dma_chan *plchan, - unsigned long flags) +static struct pl08x_txd *pl08x_get_txd(struct pl08x_dma_chan *plchan) { struct pl08x_txd *txd = kzalloc(sizeof(*txd), GFP_NOWAIT); if (txd) { - dma_async_tx_descriptor_init(&txd->tx, &plchan->chan); - txd->tx.flags = flags; - txd->tx.tx_submit = pl08x_tx_submit; - INIT_LIST_HEAD(&txd->node); INIT_LIST_HEAD(&txd->dsg_list); /* Always enable error and terminal interrupts */ @@ -1274,7 +1369,7 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_memcpy( struct pl08x_sg *dsg; int ret; - txd = pl08x_get_txd(plchan, flags); + txd = pl08x_get_txd(plchan); if (!txd) { dev_err(&pl08x->adev->dev, "%s no memory for descriptor\n", __func__); @@ -1290,14 +1385,13 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_memcpy( } list_add_tail(&dsg->node, &txd->dsg_list); - txd->direction = DMA_NONE; dsg->src_addr = src; dsg->dst_addr = dest; dsg->len = len; /* Set platform data for m2m */ txd->ccfg |= PL080_FLOW_MEM2MEM << PL080_CONFIG_FLOW_CONTROL_SHIFT; - txd->cctl = pl08x->pd->memcpy_channel.cctl & + txd->cctl = pl08x->pd->memcpy_channel.cctl_memcpy & ~(PL080_CONTROL_DST_AHB2 | PL080_CONTROL_SRC_AHB2); /* Both to be incremented or the code will break */ @@ -1307,11 +1401,13 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_memcpy( txd->cctl |= pl08x_select_bus(pl08x->mem_buses, pl08x->mem_buses); - ret = pl08x_prep_channel_resources(plchan, txd); - if (ret) + ret = pl08x_fill_llis_for_desc(plchan->host, txd); + if (!ret) { + pl08x_free_txd(pl08x, txd); return NULL; + } - return &txd->tx; + return vchan_tx_prep(&plchan->vc, &txd->vd, flags); } static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( @@ -1324,36 +1420,40 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( struct pl08x_txd *txd; struct pl08x_sg *dsg; struct scatterlist *sg; + enum dma_slave_buswidth addr_width; dma_addr_t slave_addr; int ret, tmp; + u8 src_buses, dst_buses; + u32 maxburst, cctl; dev_dbg(&pl08x->adev->dev, "%s prepare transaction of %d bytes from %s\n", __func__, sg_dma_len(sgl), plchan->name); - txd = pl08x_get_txd(plchan, flags); + txd = pl08x_get_txd(plchan); if (!txd) { dev_err(&pl08x->adev->dev, "%s no txd\n", __func__); return NULL; } - if (direction != plchan->runtime_direction) - dev_err(&pl08x->adev->dev, "%s DMA setup does not match " - "the direction configured for the PrimeCell\n", - __func__); - /* * Set up addresses, the PrimeCell configured address * will take precedence since this may configure the * channel target address dynamically at runtime. */ - txd->direction = direction; - if (direction == DMA_MEM_TO_DEV) { - txd->cctl = plchan->dst_cctl; - slave_addr = plchan->dst_addr; + cctl = PL080_CONTROL_SRC_INCR; + slave_addr = plchan->cfg.dst_addr; + addr_width = plchan->cfg.dst_addr_width; + maxburst = plchan->cfg.dst_maxburst; + src_buses = pl08x->mem_buses; + dst_buses = plchan->cd->periph_buses; } else if (direction == DMA_DEV_TO_MEM) { - txd->cctl = plchan->src_cctl; - slave_addr = plchan->src_addr; + cctl = PL080_CONTROL_DST_INCR; + slave_addr = plchan->cfg.src_addr; + addr_width = plchan->cfg.src_addr_width; + maxburst = plchan->cfg.src_maxburst; + src_buses = plchan->cd->periph_buses; + dst_buses = pl08x->mem_buses; } else { pl08x_free_txd(pl08x, txd); dev_err(&pl08x->adev->dev, @@ -1361,7 +1461,17 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( return NULL; } - if (plchan->device_fc) + cctl |= pl08x_get_cctl(plchan, addr_width, maxburst); + if (cctl == ~0) { + pl08x_free_txd(pl08x, txd); + dev_err(&pl08x->adev->dev, + "DMA slave configuration botched?\n"); + return NULL; + } + + txd->cctl = cctl | pl08x_select_bus(src_buses, dst_buses); + + if (plchan->cfg.device_fc) tmp = (direction == DMA_MEM_TO_DEV) ? PL080_FLOW_MEM2PER_PER : PL080_FLOW_PER2MEM_PER; else @@ -1370,9 +1480,28 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( txd->ccfg |= tmp << PL080_CONFIG_FLOW_CONTROL_SHIFT; + ret = pl08x_request_mux(plchan); + if (ret < 0) { + pl08x_free_txd(pl08x, txd); + dev_dbg(&pl08x->adev->dev, + "unable to mux for transfer on %s due to platform restrictions\n", + plchan->name); + return NULL; + } + + dev_dbg(&pl08x->adev->dev, "allocated DMA request signal %d for xfer on %s\n", + plchan->signal, plchan->name); + + /* Assign the flow control signal to this channel */ + if (direction == DMA_MEM_TO_DEV) + txd->ccfg |= plchan->signal << PL080_CONFIG_DST_SEL_SHIFT; + else + txd->ccfg |= plchan->signal << PL080_CONFIG_SRC_SEL_SHIFT; + for_each_sg(sgl, sg, sg_len, tmp) { dsg = kzalloc(sizeof(struct pl08x_sg), GFP_NOWAIT); if (!dsg) { + pl08x_release_mux(plchan); pl08x_free_txd(pl08x, txd); dev_err(&pl08x->adev->dev, "%s no mem for pl080 sg\n", __func__); @@ -1390,11 +1519,14 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( } } - ret = pl08x_prep_channel_resources(plchan, txd); - if (ret) + ret = pl08x_fill_llis_for_desc(plchan->host, txd); + if (!ret) { + pl08x_release_mux(plchan); + pl08x_free_txd(pl08x, txd); return NULL; + } - return &txd->tx; + return vchan_tx_prep(&plchan->vc, &txd->vd, flags); } static int pl08x_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, @@ -1415,9 +1547,9 @@ static int pl08x_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, * Anything succeeds on channels with no physical allocation and * no queued transfers. */ - spin_lock_irqsave(&plchan->lock, flags); + spin_lock_irqsave(&plchan->vc.lock, flags); if (!plchan->phychan && !plchan->at) { - spin_unlock_irqrestore(&plchan->lock, flags); + spin_unlock_irqrestore(&plchan->vc.lock, flags); return 0; } @@ -1426,18 +1558,15 @@ static int pl08x_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, plchan->state = PL08X_CHAN_IDLE; if (plchan->phychan) { - pl08x_terminate_phy_chan(pl08x, plchan->phychan); - /* * Mark physical channel as free and free any slave * signal */ - release_phy_channel(plchan); - plchan->phychan_hold = 0; + pl08x_phy_free(plchan); } /* Dequeue jobs and free LLIs */ if (plchan->at) { - pl08x_free_txd(pl08x, plchan->at); + pl08x_desc_free(&plchan->at->vd); plchan->at = NULL; } /* Dequeue jobs not yet fired as well */ @@ -1457,7 +1586,7 @@ static int pl08x_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, break; } - spin_unlock_irqrestore(&plchan->lock, flags); + spin_unlock_irqrestore(&plchan->vc.lock, flags); return ret; } @@ -1494,123 +1623,6 @@ static void pl08x_ensure_on(struct pl08x_driver_data *pl08x) writel(PL080_CONFIG_ENABLE, pl08x->base + PL080_CONFIG); } -static void pl08x_unmap_buffers(struct pl08x_txd *txd) -{ - struct device *dev = txd->tx.chan->device->dev; - struct pl08x_sg *dsg; - - if (!(txd->tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - if (txd->tx.flags & DMA_COMPL_SRC_UNMAP_SINGLE) - list_for_each_entry(dsg, &txd->dsg_list, node) - dma_unmap_single(dev, dsg->src_addr, dsg->len, - DMA_TO_DEVICE); - else { - list_for_each_entry(dsg, &txd->dsg_list, node) - dma_unmap_page(dev, dsg->src_addr, dsg->len, - DMA_TO_DEVICE); - } - } - if (!(txd->tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (txd->tx.flags & DMA_COMPL_DEST_UNMAP_SINGLE) - list_for_each_entry(dsg, &txd->dsg_list, node) - dma_unmap_single(dev, dsg->dst_addr, dsg->len, - DMA_FROM_DEVICE); - else - list_for_each_entry(dsg, &txd->dsg_list, node) - dma_unmap_page(dev, dsg->dst_addr, dsg->len, - DMA_FROM_DEVICE); - } -} - -static void pl08x_tasklet(unsigned long data) -{ - struct pl08x_dma_chan *plchan = (struct pl08x_dma_chan *) data; - struct pl08x_driver_data *pl08x = plchan->host; - struct pl08x_txd *txd; - unsigned long flags; - - spin_lock_irqsave(&plchan->lock, flags); - - txd = plchan->at; - plchan->at = NULL; - - if (txd) { - /* Update last completed */ - dma_cookie_complete(&txd->tx); - } - - /* If a new descriptor is queued, set it up plchan->at is NULL here */ - if (!list_empty(&plchan->pend_list)) { - struct pl08x_txd *next; - - next = list_first_entry(&plchan->pend_list, - struct pl08x_txd, - node); - list_del(&next->node); - - pl08x_start_txd(plchan, next); - } else if (plchan->phychan_hold) { - /* - * This channel is still in use - we have a new txd being - * prepared and will soon be queued. Don't give up the - * physical channel. - */ - } else { - struct pl08x_dma_chan *waiting = NULL; - - /* - * No more jobs, so free up the physical channel - * Free any allocated signal on slave transfers too - */ - release_phy_channel(plchan); - plchan->state = PL08X_CHAN_IDLE; - - /* - * And NOW before anyone else can grab that free:d up - * physical channel, see if there is some memcpy pending - * that seriously needs to start because of being stacked - * up while we were choking the physical channels with data. - */ - list_for_each_entry(waiting, &pl08x->memcpy.channels, - chan.device_node) { - if (waiting->state == PL08X_CHAN_WAITING && - waiting->waiting != NULL) { - int ret; - - /* This should REALLY not fail now */ - ret = prep_phy_channel(waiting, - waiting->waiting); - BUG_ON(ret); - waiting->phychan_hold--; - waiting->state = PL08X_CHAN_RUNNING; - waiting->waiting = NULL; - pl08x_issue_pending(&waiting->chan); - break; - } - } - } - - spin_unlock_irqrestore(&plchan->lock, flags); - - if (txd) { - dma_async_tx_callback callback = txd->tx.callback; - void *callback_param = txd->tx.callback_param; - - /* Don't try to unmap buffers on slave channels */ - if (!plchan->slave) - pl08x_unmap_buffers(txd); - - /* Free the descriptor */ - spin_lock_irqsave(&plchan->lock, flags); - pl08x_free_txd(pl08x, txd); - spin_unlock_irqrestore(&plchan->lock, flags); - - /* Callback to signal completion */ - if (callback) - callback(callback_param); - } -} - static irqreturn_t pl08x_irq(int irq, void *dev) { struct pl08x_driver_data *pl08x = dev; @@ -1635,6 +1647,7 @@ static irqreturn_t pl08x_irq(int irq, void *dev) /* Locate physical channel */ struct pl08x_phy_chan *phychan = &pl08x->phy_chans[i]; struct pl08x_dma_chan *plchan = phychan->serving; + struct pl08x_txd *tx; if (!plchan) { dev_err(&pl08x->adev->dev, @@ -1643,8 +1656,29 @@ static irqreturn_t pl08x_irq(int irq, void *dev) continue; } - /* Schedule tasklet on this channel */ - tasklet_schedule(&plchan->tasklet); + spin_lock(&plchan->vc.lock); + tx = plchan->at; + if (tx) { + plchan->at = NULL; + /* + * This descriptor is done, release its mux + * reservation. + */ + pl08x_release_mux(plchan); + tx->done = true; + vchan_cookie_complete(&tx->vd); + + /* + * And start the next descriptor (if any), + * otherwise free this channel. + */ + if (vchan_next_desc(&plchan->vc)) + pl08x_start_next_txd(plchan); + else + pl08x_phy_free(plchan); + } + spin_unlock(&plchan->vc.lock); + mask |= (1 << i); } } @@ -1654,16 +1688,10 @@ static irqreturn_t pl08x_irq(int irq, void *dev) static void pl08x_dma_slave_init(struct pl08x_dma_chan *chan) { - u32 cctl = pl08x_cctl(chan->cd->cctl); - chan->slave = true; chan->name = chan->cd->bus_id; - chan->src_addr = chan->cd->addr; - chan->dst_addr = chan->cd->addr; - chan->src_cctl = cctl | PL080_CONTROL_DST_INCR | - pl08x_select_bus(chan->cd->periph_buses, chan->host->mem_buses); - chan->dst_cctl = cctl | PL080_CONTROL_SRC_INCR | - pl08x_select_bus(chan->host->mem_buses, chan->cd->periph_buses); + chan->cfg.src_addr = chan->cd->addr; + chan->cfg.dst_addr = chan->cd->addr; } /* @@ -1693,6 +1721,7 @@ static int pl08x_dma_init_virtual_channels(struct pl08x_driver_data *pl08x, chan->host = pl08x; chan->state = PL08X_CHAN_IDLE; + chan->signal = -1; if (slave) { chan->cd = &pl08x->pd->slave_channels[i]; @@ -1705,26 +1734,12 @@ static int pl08x_dma_init_virtual_channels(struct pl08x_driver_data *pl08x, return -ENOMEM; } } - if (chan->cd->circular_buffer) { - dev_err(&pl08x->adev->dev, - "channel %s: circular buffers not supported\n", - chan->name); - kfree(chan); - continue; - } dev_dbg(&pl08x->adev->dev, "initialize virtual channel \"%s\"\n", chan->name); - chan->chan.device = dmadev; - dma_cookie_init(&chan->chan); - - spin_lock_init(&chan->lock); - INIT_LIST_HEAD(&chan->pend_list); - tasklet_init(&chan->tasklet, pl08x_tasklet, - (unsigned long) chan); - - list_add_tail(&chan->chan.device_node, &dmadev->channels); + chan->vc.desc_free = pl08x_desc_free; + vchan_init(&chan->vc, dmadev); } dev_info(&pl08x->adev->dev, "initialized %d virtual %s channels\n", i, slave ? "slave" : "memcpy"); @@ -1737,8 +1752,8 @@ static void pl08x_free_virtual_channels(struct dma_device *dmadev) struct pl08x_dma_chan *next; list_for_each_entry_safe(chan, - next, &dmadev->channels, chan.device_node) { - list_del(&chan->chan.device_node); + next, &dmadev->channels, vc.chan.device_node) { + list_del(&chan->vc.chan.device_node); kfree(chan); } } @@ -1791,7 +1806,7 @@ static int pl08x_debugfs_show(struct seq_file *s, void *data) seq_printf(s, "\nPL08x virtual memcpy channels:\n"); seq_printf(s, "CHANNEL:\tSTATE:\n"); seq_printf(s, "--------\t------\n"); - list_for_each_entry(chan, &pl08x->memcpy.channels, chan.device_node) { + list_for_each_entry(chan, &pl08x->memcpy.channels, vc.chan.device_node) { seq_printf(s, "%s\t\t%s\n", chan->name, pl08x_state_str(chan->state)); } @@ -1799,7 +1814,7 @@ static int pl08x_debugfs_show(struct seq_file *s, void *data) seq_printf(s, "\nPL08x virtual slave channels:\n"); seq_printf(s, "CHANNEL:\tSTATE:\n"); seq_printf(s, "--------\t------\n"); - list_for_each_entry(chan, &pl08x->slave.channels, chan.device_node) { + list_for_each_entry(chan, &pl08x->slave.channels, vc.chan.device_node) { seq_printf(s, "%s\t\t%s\n", chan->name, pl08x_state_str(chan->state)); } @@ -1851,9 +1866,6 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) goto out_no_pl08x; } - pm_runtime_set_active(&adev->dev); - pm_runtime_enable(&adev->dev); - /* Initialize memcpy engine */ dma_cap_set(DMA_MEMCPY, pl08x->memcpy.cap_mask); pl08x->memcpy.dev = &adev->dev; @@ -1903,8 +1915,6 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) goto out_no_lli_pool; } - spin_lock_init(&pl08x->lock); - pl08x->base = ioremap(adev->res.start, resource_size(&adev->res)); if (!pl08x->base) { ret = -ENOMEM; @@ -1942,7 +1952,6 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) ch->id = i; ch->base = pl08x->base + PL080_Cx_BASE(i); spin_lock_init(&ch->lock); - ch->signal = -1; /* * Nomadik variants can have channels that are locked @@ -2007,7 +2016,6 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) amba_part(adev), amba_rev(adev), (unsigned long long)adev->res.start, adev->irq[0]); - pm_runtime_put(&adev->dev); return 0; out_no_slave_reg: @@ -2026,9 +2034,6 @@ out_no_ioremap: dma_pool_destroy(pl08x->pool); out_no_lli_pool: out_no_platdata: - pm_runtime_put(&adev->dev); - pm_runtime_disable(&adev->dev); - kfree(pl08x); out_no_pl08x: amba_release_regions(adev); diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c new file mode 100644 index 0000000..ae05618 --- /dev/null +++ b/drivers/dma/omap-dma.c @@ -0,0 +1,669 @@ +/* + * OMAP DMAengine support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "virt-dma.h" +#include + +struct omap_dmadev { + struct dma_device ddev; + spinlock_t lock; + struct tasklet_struct task; + struct list_head pending; +}; + +struct omap_chan { + struct virt_dma_chan vc; + struct list_head node; + + struct dma_slave_config cfg; + unsigned dma_sig; + bool cyclic; + + int dma_ch; + struct omap_desc *desc; + unsigned sgidx; +}; + +struct omap_sg { + dma_addr_t addr; + uint32_t en; /* number of elements (24-bit) */ + uint32_t fn; /* number of frames (16-bit) */ +}; + +struct omap_desc { + struct virt_dma_desc vd; + enum dma_transfer_direction dir; + dma_addr_t dev_addr; + + int16_t fi; /* for OMAP_DMA_SYNC_PACKET */ + uint8_t es; /* OMAP_DMA_DATA_TYPE_xxx */ + uint8_t sync_mode; /* OMAP_DMA_SYNC_xxx */ + uint8_t sync_type; /* OMAP_DMA_xxx_SYNC* */ + uint8_t periph_port; /* Peripheral port */ + + unsigned sglen; + struct omap_sg sg[0]; +}; + +static const unsigned es_bytes[] = { + [OMAP_DMA_DATA_TYPE_S8] = 1, + [OMAP_DMA_DATA_TYPE_S16] = 2, + [OMAP_DMA_DATA_TYPE_S32] = 4, +}; + +static inline struct omap_dmadev *to_omap_dma_dev(struct dma_device *d) +{ + return container_of(d, struct omap_dmadev, ddev); +} + +static inline struct omap_chan *to_omap_dma_chan(struct dma_chan *c) +{ + return container_of(c, struct omap_chan, vc.chan); +} + +static inline struct omap_desc *to_omap_dma_desc(struct dma_async_tx_descriptor *t) +{ + return container_of(t, struct omap_desc, vd.tx); +} + +static void omap_dma_desc_free(struct virt_dma_desc *vd) +{ + kfree(container_of(vd, struct omap_desc, vd)); +} + +static void omap_dma_start_sg(struct omap_chan *c, struct omap_desc *d, + unsigned idx) +{ + struct omap_sg *sg = d->sg + idx; + + if (d->dir == DMA_DEV_TO_MEM) + omap_set_dma_dest_params(c->dma_ch, OMAP_DMA_PORT_EMIFF, + OMAP_DMA_AMODE_POST_INC, sg->addr, 0, 0); + else + omap_set_dma_src_params(c->dma_ch, OMAP_DMA_PORT_EMIFF, + OMAP_DMA_AMODE_POST_INC, sg->addr, 0, 0); + + omap_set_dma_transfer_params(c->dma_ch, d->es, sg->en, sg->fn, + d->sync_mode, c->dma_sig, d->sync_type); + + omap_start_dma(c->dma_ch); +} + +static void omap_dma_start_desc(struct omap_chan *c) +{ + struct virt_dma_desc *vd = vchan_next_desc(&c->vc); + struct omap_desc *d; + + if (!vd) { + c->desc = NULL; + return; + } + + list_del(&vd->node); + + c->desc = d = to_omap_dma_desc(&vd->tx); + c->sgidx = 0; + + if (d->dir == DMA_DEV_TO_MEM) + omap_set_dma_src_params(c->dma_ch, d->periph_port, + OMAP_DMA_AMODE_CONSTANT, d->dev_addr, 0, d->fi); + else + omap_set_dma_dest_params(c->dma_ch, d->periph_port, + OMAP_DMA_AMODE_CONSTANT, d->dev_addr, 0, d->fi); + + omap_dma_start_sg(c, d, 0); +} + +static void omap_dma_callback(int ch, u16 status, void *data) +{ + struct omap_chan *c = data; + struct omap_desc *d; + unsigned long flags; + + spin_lock_irqsave(&c->vc.lock, flags); + d = c->desc; + if (d) { + if (!c->cyclic) { + if (++c->sgidx < d->sglen) { + omap_dma_start_sg(c, d, c->sgidx); + } else { + omap_dma_start_desc(c); + vchan_cookie_complete(&d->vd); + } + } else { + vchan_cyclic_callback(&d->vd); + } + } + spin_unlock_irqrestore(&c->vc.lock, flags); +} + +/* + * This callback schedules all pending channels. We could be more + * clever here by postponing allocation of the real DMA channels to + * this point, and freeing them when our virtual channel becomes idle. + * + * We would then need to deal with 'all channels in-use' + */ +static void omap_dma_sched(unsigned long data) +{ + struct omap_dmadev *d = (struct omap_dmadev *)data; + LIST_HEAD(head); + + spin_lock_irq(&d->lock); + list_splice_tail_init(&d->pending, &head); + spin_unlock_irq(&d->lock); + + while (!list_empty(&head)) { + struct omap_chan *c = list_first_entry(&head, + struct omap_chan, node); + + spin_lock_irq(&c->vc.lock); + list_del_init(&c->node); + omap_dma_start_desc(c); + spin_unlock_irq(&c->vc.lock); + } +} + +static int omap_dma_alloc_chan_resources(struct dma_chan *chan) +{ + struct omap_chan *c = to_omap_dma_chan(chan); + + dev_info(c->vc.chan.device->dev, "allocating channel for %u\n", c->dma_sig); + + return omap_request_dma(c->dma_sig, "DMA engine", + omap_dma_callback, c, &c->dma_ch); +} + +static void omap_dma_free_chan_resources(struct dma_chan *chan) +{ + struct omap_chan *c = to_omap_dma_chan(chan); + + vchan_free_chan_resources(&c->vc); + omap_free_dma(c->dma_ch); + + dev_info(c->vc.chan.device->dev, "freeing channel for %u\n", c->dma_sig); +} + +static size_t omap_dma_sg_size(struct omap_sg *sg) +{ + return sg->en * sg->fn; +} + +static size_t omap_dma_desc_size(struct omap_desc *d) +{ + unsigned i; + size_t size; + + for (size = i = 0; i < d->sglen; i++) + size += omap_dma_sg_size(&d->sg[i]); + + return size * es_bytes[d->es]; +} + +static size_t omap_dma_desc_size_pos(struct omap_desc *d, dma_addr_t addr) +{ + unsigned i; + size_t size, es_size = es_bytes[d->es]; + + for (size = i = 0; i < d->sglen; i++) { + size_t this_size = omap_dma_sg_size(&d->sg[i]) * es_size; + + if (size) + size += this_size; + else if (addr >= d->sg[i].addr && + addr < d->sg[i].addr + this_size) + size += d->sg[i].addr + this_size - addr; + } + return size; +} + +static enum dma_status omap_dma_tx_status(struct dma_chan *chan, + dma_cookie_t cookie, struct dma_tx_state *txstate) +{ + struct omap_chan *c = to_omap_dma_chan(chan); + struct virt_dma_desc *vd; + enum dma_status ret; + unsigned long flags; + + ret = dma_cookie_status(chan, cookie, txstate); + if (ret == DMA_SUCCESS || !txstate) + return ret; + + spin_lock_irqsave(&c->vc.lock, flags); + vd = vchan_find_desc(&c->vc, cookie); + if (vd) { + txstate->residue = omap_dma_desc_size(to_omap_dma_desc(&vd->tx)); + } else if (c->desc && c->desc->vd.tx.cookie == cookie) { + struct omap_desc *d = c->desc; + dma_addr_t pos; + + if (d->dir == DMA_MEM_TO_DEV) + pos = omap_get_dma_src_pos(c->dma_ch); + else if (d->dir == DMA_DEV_TO_MEM) + pos = omap_get_dma_dst_pos(c->dma_ch); + else + pos = 0; + + txstate->residue = omap_dma_desc_size_pos(d, pos); + } else { + txstate->residue = 0; + } + spin_unlock_irqrestore(&c->vc.lock, flags); + + return ret; +} + +static void omap_dma_issue_pending(struct dma_chan *chan) +{ + struct omap_chan *c = to_omap_dma_chan(chan); + unsigned long flags; + + spin_lock_irqsave(&c->vc.lock, flags); + if (vchan_issue_pending(&c->vc) && !c->desc) { + struct omap_dmadev *d = to_omap_dma_dev(chan->device); + spin_lock(&d->lock); + if (list_empty(&c->node)) + list_add_tail(&c->node, &d->pending); + spin_unlock(&d->lock); + tasklet_schedule(&d->task); + } + spin_unlock_irqrestore(&c->vc.lock, flags); +} + +static struct dma_async_tx_descriptor *omap_dma_prep_slave_sg( + struct dma_chan *chan, struct scatterlist *sgl, unsigned sglen, + enum dma_transfer_direction dir, unsigned long tx_flags, void *context) +{ + struct omap_chan *c = to_omap_dma_chan(chan); + enum dma_slave_buswidth dev_width; + struct scatterlist *sgent; + struct omap_desc *d; + dma_addr_t dev_addr; + unsigned i, j = 0, es, en, frame_bytes, sync_type; + u32 burst; + + if (dir == DMA_DEV_TO_MEM) { + dev_addr = c->cfg.src_addr; + dev_width = c->cfg.src_addr_width; + burst = c->cfg.src_maxburst; + sync_type = OMAP_DMA_SRC_SYNC; + } else if (dir == DMA_MEM_TO_DEV) { + dev_addr = c->cfg.dst_addr; + dev_width = c->cfg.dst_addr_width; + burst = c->cfg.dst_maxburst; + sync_type = OMAP_DMA_DST_SYNC; + } else { + dev_err(chan->device->dev, "%s: bad direction?\n", __func__); + return NULL; + } + + /* Bus width translates to the element size (ES) */ + switch (dev_width) { + case DMA_SLAVE_BUSWIDTH_1_BYTE: + es = OMAP_DMA_DATA_TYPE_S8; + break; + case DMA_SLAVE_BUSWIDTH_2_BYTES: + es = OMAP_DMA_DATA_TYPE_S16; + break; + case DMA_SLAVE_BUSWIDTH_4_BYTES: + es = OMAP_DMA_DATA_TYPE_S32; + break; + default: /* not reached */ + return NULL; + } + + /* Now allocate and setup the descriptor. */ + d = kzalloc(sizeof(*d) + sglen * sizeof(d->sg[0]), GFP_ATOMIC); + if (!d) + return NULL; + + d->dir = dir; + d->dev_addr = dev_addr; + d->es = es; + d->sync_mode = OMAP_DMA_SYNC_FRAME; + d->sync_type = sync_type; + d->periph_port = OMAP_DMA_PORT_TIPB; + + /* + * Build our scatterlist entries: each contains the address, + * the number of elements (EN) in each frame, and the number of + * frames (FN). Number of bytes for this entry = ES * EN * FN. + * + * Burst size translates to number of elements with frame sync. + * Note: DMA engine defines burst to be the number of dev-width + * transfers. + */ + en = burst; + frame_bytes = es_bytes[es] * en; + for_each_sg(sgl, sgent, sglen, i) { + d->sg[j].addr = sg_dma_address(sgent); + d->sg[j].en = en; + d->sg[j].fn = sg_dma_len(sgent) / frame_bytes; + j++; + } + + d->sglen = j; + + return vchan_tx_prep(&c->vc, &d->vd, tx_flags); +} + +static struct dma_async_tx_descriptor *omap_dma_prep_dma_cyclic( + struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, + size_t period_len, enum dma_transfer_direction dir, void *context) +{ + struct omap_chan *c = to_omap_dma_chan(chan); + enum dma_slave_buswidth dev_width; + struct omap_desc *d; + dma_addr_t dev_addr; + unsigned es, sync_type; + u32 burst; + + if (dir == DMA_DEV_TO_MEM) { + dev_addr = c->cfg.src_addr; + dev_width = c->cfg.src_addr_width; + burst = c->cfg.src_maxburst; + sync_type = OMAP_DMA_SRC_SYNC; + } else if (dir == DMA_MEM_TO_DEV) { + dev_addr = c->cfg.dst_addr; + dev_width = c->cfg.dst_addr_width; + burst = c->cfg.dst_maxburst; + sync_type = OMAP_DMA_DST_SYNC; + } else { + dev_err(chan->device->dev, "%s: bad direction?\n", __func__); + return NULL; + } + + /* Bus width translates to the element size (ES) */ + switch (dev_width) { + case DMA_SLAVE_BUSWIDTH_1_BYTE: + es = OMAP_DMA_DATA_TYPE_S8; + break; + case DMA_SLAVE_BUSWIDTH_2_BYTES: + es = OMAP_DMA_DATA_TYPE_S16; + break; + case DMA_SLAVE_BUSWIDTH_4_BYTES: + es = OMAP_DMA_DATA_TYPE_S32; + break; + default: /* not reached */ + return NULL; + } + + /* Now allocate and setup the descriptor. */ + d = kzalloc(sizeof(*d) + sizeof(d->sg[0]), GFP_ATOMIC); + if (!d) + return NULL; + + d->dir = dir; + d->dev_addr = dev_addr; + d->fi = burst; + d->es = es; + d->sync_mode = OMAP_DMA_SYNC_PACKET; + d->sync_type = sync_type; + d->periph_port = OMAP_DMA_PORT_MPUI; + d->sg[0].addr = buf_addr; + d->sg[0].en = period_len / es_bytes[es]; + d->sg[0].fn = buf_len / period_len; + d->sglen = 1; + + if (!c->cyclic) { + c->cyclic = true; + omap_dma_link_lch(c->dma_ch, c->dma_ch); + omap_enable_dma_irq(c->dma_ch, OMAP_DMA_FRAME_IRQ); + omap_disable_dma_irq(c->dma_ch, OMAP_DMA_BLOCK_IRQ); + } + + if (!cpu_class_is_omap1()) { + omap_set_dma_src_burst_mode(c->dma_ch, OMAP_DMA_DATA_BURST_16); + omap_set_dma_dest_burst_mode(c->dma_ch, OMAP_DMA_DATA_BURST_16); + } + + return vchan_tx_prep(&c->vc, &d->vd, DMA_CTRL_ACK | DMA_PREP_INTERRUPT); +} + +static int omap_dma_slave_config(struct omap_chan *c, struct dma_slave_config *cfg) +{ + if (cfg->src_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES || + cfg->dst_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES) + return -EINVAL; + + memcpy(&c->cfg, cfg, sizeof(c->cfg)); + + return 0; +} + +static int omap_dma_terminate_all(struct omap_chan *c) +{ + struct omap_dmadev *d = to_omap_dma_dev(c->vc.chan.device); + unsigned long flags; + LIST_HEAD(head); + + spin_lock_irqsave(&c->vc.lock, flags); + + /* Prevent this channel being scheduled */ + spin_lock(&d->lock); + list_del_init(&c->node); + spin_unlock(&d->lock); + + /* + * Stop DMA activity: we assume the callback will not be called + * after omap_stop_dma() returns (even if it does, it will see + * c->desc is NULL and exit.) + */ + if (c->desc) { + c->desc = NULL; + omap_stop_dma(c->dma_ch); + } + + if (c->cyclic) { + c->cyclic = false; + omap_dma_unlink_lch(c->dma_ch, c->dma_ch); + } + + vchan_get_all_descriptors(&c->vc, &head); + spin_unlock_irqrestore(&c->vc.lock, flags); + vchan_dma_desc_free_list(&c->vc, &head); + + return 0; +} + +static int omap_dma_pause(struct omap_chan *c) +{ + /* FIXME: not supported by platform private API */ + return -EINVAL; +} + +static int omap_dma_resume(struct omap_chan *c) +{ + /* FIXME: not supported by platform private API */ + return -EINVAL; +} + +static int omap_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, + unsigned long arg) +{ + struct omap_chan *c = to_omap_dma_chan(chan); + int ret; + + switch (cmd) { + case DMA_SLAVE_CONFIG: + ret = omap_dma_slave_config(c, (struct dma_slave_config *)arg); + break; + + case DMA_TERMINATE_ALL: + ret = omap_dma_terminate_all(c); + break; + + case DMA_PAUSE: + ret = omap_dma_pause(c); + break; + + case DMA_RESUME: + ret = omap_dma_resume(c); + break; + + default: + ret = -ENXIO; + break; + } + + return ret; +} + +static int omap_dma_chan_init(struct omap_dmadev *od, int dma_sig) +{ + struct omap_chan *c; + + c = kzalloc(sizeof(*c), GFP_KERNEL); + if (!c) + return -ENOMEM; + + c->dma_sig = dma_sig; + c->vc.desc_free = omap_dma_desc_free; + vchan_init(&c->vc, &od->ddev); + INIT_LIST_HEAD(&c->node); + + od->ddev.chancnt++; + + return 0; +} + +static void omap_dma_free(struct omap_dmadev *od) +{ + tasklet_kill(&od->task); + while (!list_empty(&od->ddev.channels)) { + struct omap_chan *c = list_first_entry(&od->ddev.channels, + struct omap_chan, vc.chan.device_node); + + list_del(&c->vc.chan.device_node); + tasklet_kill(&c->vc.task); + kfree(c); + } + kfree(od); +} + +static int omap_dma_probe(struct platform_device *pdev) +{ + struct omap_dmadev *od; + int rc, i; + + od = kzalloc(sizeof(*od), GFP_KERNEL); + if (!od) + return -ENOMEM; + + dma_cap_set(DMA_SLAVE, od->ddev.cap_mask); + dma_cap_set(DMA_CYCLIC, od->ddev.cap_mask); + od->ddev.device_alloc_chan_resources = omap_dma_alloc_chan_resources; + od->ddev.device_free_chan_resources = omap_dma_free_chan_resources; + od->ddev.device_tx_status = omap_dma_tx_status; + od->ddev.device_issue_pending = omap_dma_issue_pending; + od->ddev.device_prep_slave_sg = omap_dma_prep_slave_sg; + od->ddev.device_prep_dma_cyclic = omap_dma_prep_dma_cyclic; + od->ddev.device_control = omap_dma_control; + od->ddev.dev = &pdev->dev; + INIT_LIST_HEAD(&od->ddev.channels); + INIT_LIST_HEAD(&od->pending); + spin_lock_init(&od->lock); + + tasklet_init(&od->task, omap_dma_sched, (unsigned long)od); + + for (i = 0; i < 127; i++) { + rc = omap_dma_chan_init(od, i); + if (rc) { + omap_dma_free(od); + return rc; + } + } + + rc = dma_async_device_register(&od->ddev); + if (rc) { + pr_warn("OMAP-DMA: failed to register slave DMA engine device: %d\n", + rc); + omap_dma_free(od); + } else { + platform_set_drvdata(pdev, od); + } + + dev_info(&pdev->dev, "OMAP DMA engine driver\n"); + + return rc; +} + +static int omap_dma_remove(struct platform_device *pdev) +{ + struct omap_dmadev *od = platform_get_drvdata(pdev); + + dma_async_device_unregister(&od->ddev); + omap_dma_free(od); + + return 0; +} + +static struct platform_driver omap_dma_driver = { + .probe = omap_dma_probe, + .remove = omap_dma_remove, + .driver = { + .name = "omap-dma-engine", + .owner = THIS_MODULE, + }, +}; + +bool omap_dma_filter_fn(struct dma_chan *chan, void *param) +{ + if (chan->device->dev->driver == &omap_dma_driver.driver) { + struct omap_chan *c = to_omap_dma_chan(chan); + unsigned req = *(unsigned *)param; + + return req == c->dma_sig; + } + return false; +} +EXPORT_SYMBOL_GPL(omap_dma_filter_fn); + +static struct platform_device *pdev; + +static const struct platform_device_info omap_dma_dev_info = { + .name = "omap-dma-engine", + .id = -1, + .dma_mask = DMA_BIT_MASK(32), +}; + +static int omap_dma_init(void) +{ + int rc = platform_driver_register(&omap_dma_driver); + + if (rc == 0) { + pdev = platform_device_register_full(&omap_dma_dev_info); + if (IS_ERR(pdev)) { + platform_driver_unregister(&omap_dma_driver); + rc = PTR_ERR(pdev); + } + } + return rc; +} +subsys_initcall(omap_dma_init); + +static void __exit omap_dma_exit(void) +{ + platform_device_unregister(pdev); + platform_driver_unregister(&omap_dma_driver); +} +module_exit(omap_dma_exit); + +MODULE_AUTHOR("Russell King"); +MODULE_LICENSE("GPL"); diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c index ec78cce..f5a7360 100644 --- a/drivers/dma/sa11x0-dma.c +++ b/drivers/dma/sa11x0-dma.c @@ -21,6 +21,8 @@ #include #include +#include "virt-dma.h" + #define NR_PHY_CHAN 6 #define DMA_ALIGN 3 #define DMA_MAX_SIZE 0x1fff @@ -72,12 +74,13 @@ struct sa11x0_dma_sg { }; struct sa11x0_dma_desc { - struct dma_async_tx_descriptor tx; + struct virt_dma_desc vd; + u32 ddar; size_t size; + unsigned period; + bool cyclic; - /* maybe protected by c->lock */ - struct list_head node; unsigned sglen; struct sa11x0_dma_sg sg[0]; }; @@ -85,15 +88,11 @@ struct sa11x0_dma_desc { struct sa11x0_dma_phy; struct sa11x0_dma_chan { - struct dma_chan chan; - spinlock_t lock; - dma_cookie_t lc; + struct virt_dma_chan vc; - /* protected by c->lock */ + /* protected by c->vc.lock */ struct sa11x0_dma_phy *phy; enum dma_status status; - struct list_head desc_submitted; - struct list_head desc_issued; /* protected by d->lock */ struct list_head node; @@ -109,7 +108,7 @@ struct sa11x0_dma_phy { struct sa11x0_dma_chan *vchan; - /* Protected by c->lock */ + /* Protected by c->vc.lock */ unsigned sg_load; struct sa11x0_dma_desc *txd_load; unsigned sg_done; @@ -127,13 +126,12 @@ struct sa11x0_dma_dev { spinlock_t lock; struct tasklet_struct task; struct list_head chan_pending; - struct list_head desc_complete; struct sa11x0_dma_phy phy[NR_PHY_CHAN]; }; static struct sa11x0_dma_chan *to_sa11x0_dma_chan(struct dma_chan *chan) { - return container_of(chan, struct sa11x0_dma_chan, chan); + return container_of(chan, struct sa11x0_dma_chan, vc.chan); } static struct sa11x0_dma_dev *to_sa11x0_dma(struct dma_device *dmadev) @@ -141,27 +139,26 @@ static struct sa11x0_dma_dev *to_sa11x0_dma(struct dma_device *dmadev) return container_of(dmadev, struct sa11x0_dma_dev, slave); } -static struct sa11x0_dma_desc *to_sa11x0_dma_tx(struct dma_async_tx_descriptor *tx) +static struct sa11x0_dma_desc *sa11x0_dma_next_desc(struct sa11x0_dma_chan *c) { - return container_of(tx, struct sa11x0_dma_desc, tx); + struct virt_dma_desc *vd = vchan_next_desc(&c->vc); + + return vd ? container_of(vd, struct sa11x0_dma_desc, vd) : NULL; } -static struct sa11x0_dma_desc *sa11x0_dma_next_desc(struct sa11x0_dma_chan *c) +static void sa11x0_dma_free_desc(struct virt_dma_desc *vd) { - if (list_empty(&c->desc_issued)) - return NULL; - - return list_first_entry(&c->desc_issued, struct sa11x0_dma_desc, node); + kfree(container_of(vd, struct sa11x0_dma_desc, vd)); } static void sa11x0_dma_start_desc(struct sa11x0_dma_phy *p, struct sa11x0_dma_desc *txd) { - list_del(&txd->node); + list_del(&txd->vd.node); p->txd_load = txd; p->sg_load = 0; dev_vdbg(p->dev->slave.dev, "pchan %u: txd %p[%x]: starting: DDAR:%x\n", - p->num, txd, txd->tx.cookie, txd->ddar); + p->num, &txd->vd, txd->vd.tx.cookie, txd->ddar); } static void noinline sa11x0_dma_start_sg(struct sa11x0_dma_phy *p, @@ -183,19 +180,24 @@ static void noinline sa11x0_dma_start_sg(struct sa11x0_dma_phy *p, return; if (p->sg_load == txd->sglen) { - struct sa11x0_dma_desc *txn = sa11x0_dma_next_desc(c); + if (!txd->cyclic) { + struct sa11x0_dma_desc *txn = sa11x0_dma_next_desc(c); - /* - * We have reached the end of the current descriptor. - * Peek at the next descriptor, and if compatible with - * the current, start processing it. - */ - if (txn && txn->ddar == txd->ddar) { - txd = txn; - sa11x0_dma_start_desc(p, txn); + /* + * We have reached the end of the current descriptor. + * Peek at the next descriptor, and if compatible with + * the current, start processing it. + */ + if (txn && txn->ddar == txd->ddar) { + txd = txn; + sa11x0_dma_start_desc(p, txn); + } else { + p->txd_load = NULL; + return; + } } else { - p->txd_load = NULL; - return; + /* Cyclic: reset back to beginning */ + p->sg_load = 0; } } @@ -229,21 +231,21 @@ static void noinline sa11x0_dma_complete(struct sa11x0_dma_phy *p, struct sa11x0_dma_desc *txd = p->txd_done; if (++p->sg_done == txd->sglen) { - struct sa11x0_dma_dev *d = p->dev; - - dev_vdbg(d->slave.dev, "pchan %u: txd %p[%x]: completed\n", - p->num, p->txd_done, p->txd_done->tx.cookie); - - c->lc = txd->tx.cookie; + if (!txd->cyclic) { + vchan_cookie_complete(&txd->vd); - spin_lock(&d->lock); - list_add_tail(&txd->node, &d->desc_complete); - spin_unlock(&d->lock); + p->sg_done = 0; + p->txd_done = p->txd_load; - p->sg_done = 0; - p->txd_done = p->txd_load; + if (!p->txd_done) + tasklet_schedule(&p->dev->task); + } else { + if ((p->sg_done % txd->period) == 0) + vchan_cyclic_callback(&txd->vd); - tasklet_schedule(&d->task); + /* Cyclic: reset back to beginning */ + p->sg_done = 0; + } } sa11x0_dma_start_sg(p, c); @@ -280,7 +282,7 @@ static irqreturn_t sa11x0_dma_irq(int irq, void *dev_id) if (c) { unsigned long flags; - spin_lock_irqsave(&c->lock, flags); + spin_lock_irqsave(&c->vc.lock, flags); /* * Now that we're holding the lock, check that the vchan * really is associated with this pchan before touching the @@ -294,7 +296,7 @@ static irqreturn_t sa11x0_dma_irq(int irq, void *dev_id) if (dcsr & DCSR_DONEB) sa11x0_dma_complete(p, c); } - spin_unlock_irqrestore(&c->lock, flags); + spin_unlock_irqrestore(&c->vc.lock, flags); } return IRQ_HANDLED; @@ -332,28 +334,15 @@ static void sa11x0_dma_tasklet(unsigned long arg) struct sa11x0_dma_dev *d = (struct sa11x0_dma_dev *)arg; struct sa11x0_dma_phy *p; struct sa11x0_dma_chan *c; - struct sa11x0_dma_desc *txd, *txn; - LIST_HEAD(head); unsigned pch, pch_alloc = 0; dev_dbg(d->slave.dev, "tasklet enter\n"); - /* Get the completed tx descriptors */ - spin_lock_irq(&d->lock); - list_splice_init(&d->desc_complete, &head); - spin_unlock_irq(&d->lock); - - list_for_each_entry(txd, &head, node) { - c = to_sa11x0_dma_chan(txd->tx.chan); - - dev_dbg(d->slave.dev, "vchan %p: txd %p[%x] completed\n", - c, txd, txd->tx.cookie); - - spin_lock_irq(&c->lock); + list_for_each_entry(c, &d->slave.channels, vc.chan.device_node) { + spin_lock_irq(&c->vc.lock); p = c->phy; - if (p) { - if (!p->txd_done) - sa11x0_dma_start_txd(c); + if (p && !p->txd_done) { + sa11x0_dma_start_txd(c); if (!p->txd_done) { /* No current txd associated with this channel */ dev_dbg(d->slave.dev, "pchan %u: free\n", p->num); @@ -363,7 +352,7 @@ static void sa11x0_dma_tasklet(unsigned long arg) p->vchan = NULL; } } - spin_unlock_irq(&c->lock); + spin_unlock_irq(&c->vc.lock); } spin_lock_irq(&d->lock); @@ -380,7 +369,7 @@ static void sa11x0_dma_tasklet(unsigned long arg) /* Mark this channel allocated */ p->vchan = c; - dev_dbg(d->slave.dev, "pchan %u: alloc vchan %p\n", pch, c); + dev_dbg(d->slave.dev, "pchan %u: alloc vchan %p\n", pch, &c->vc); } } spin_unlock_irq(&d->lock); @@ -390,42 +379,18 @@ static void sa11x0_dma_tasklet(unsigned long arg) p = &d->phy[pch]; c = p->vchan; - spin_lock_irq(&c->lock); + spin_lock_irq(&c->vc.lock); c->phy = p; sa11x0_dma_start_txd(c); - spin_unlock_irq(&c->lock); + spin_unlock_irq(&c->vc.lock); } } - /* Now free the completed tx descriptor, and call their callbacks */ - list_for_each_entry_safe(txd, txn, &head, node) { - dma_async_tx_callback callback = txd->tx.callback; - void *callback_param = txd->tx.callback_param; - - dev_dbg(d->slave.dev, "txd %p[%x]: callback and free\n", - txd, txd->tx.cookie); - - kfree(txd); - - if (callback) - callback(callback_param); - } - dev_dbg(d->slave.dev, "tasklet exit\n"); } -static void sa11x0_dma_desc_free(struct sa11x0_dma_dev *d, struct list_head *head) -{ - struct sa11x0_dma_desc *txd, *txn; - - list_for_each_entry_safe(txd, txn, head, node) { - dev_dbg(d->slave.dev, "txd %p: freeing\n", txd); - kfree(txd); - } -} - static int sa11x0_dma_alloc_chan_resources(struct dma_chan *chan) { return 0; @@ -436,18 +401,12 @@ static void sa11x0_dma_free_chan_resources(struct dma_chan *chan) struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan); struct sa11x0_dma_dev *d = to_sa11x0_dma(chan->device); unsigned long flags; - LIST_HEAD(head); - spin_lock_irqsave(&c->lock, flags); - spin_lock(&d->lock); + spin_lock_irqsave(&d->lock, flags); list_del_init(&c->node); - spin_unlock(&d->lock); - - list_splice_tail_init(&c->desc_submitted, &head); - list_splice_tail_init(&c->desc_issued, &head); - spin_unlock_irqrestore(&c->lock, flags); + spin_unlock_irqrestore(&d->lock, flags); - sa11x0_dma_desc_free(d, &head); + vchan_free_chan_resources(&c->vc); } static dma_addr_t sa11x0_dma_pos(struct sa11x0_dma_phy *p) @@ -472,33 +431,47 @@ static enum dma_status sa11x0_dma_tx_status(struct dma_chan *chan, struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan); struct sa11x0_dma_dev *d = to_sa11x0_dma(chan->device); struct sa11x0_dma_phy *p; - struct sa11x0_dma_desc *txd; - dma_cookie_t last_used, last_complete; + struct virt_dma_desc *vd; unsigned long flags; enum dma_status ret; - size_t bytes = 0; - - last_used = c->chan.cookie; - last_complete = c->lc; - ret = dma_async_is_complete(cookie, last_complete, last_used); - if (ret == DMA_SUCCESS) { - dma_set_tx_state(state, last_complete, last_used, 0); + ret = dma_cookie_status(&c->vc.chan, cookie, state); + if (ret == DMA_SUCCESS) return ret; - } - spin_lock_irqsave(&c->lock, flags); + if (!state) + return c->status; + + spin_lock_irqsave(&c->vc.lock, flags); p = c->phy; - ret = c->status; - if (p) { - dma_addr_t addr = sa11x0_dma_pos(p); - dev_vdbg(d->slave.dev, "tx_status: addr:%x\n", addr); + /* + * If the cookie is on our issue queue, then the residue is + * its total size. + */ + vd = vchan_find_desc(&c->vc, cookie); + if (vd) { + state->residue = container_of(vd, struct sa11x0_dma_desc, vd)->size; + } else if (!p) { + state->residue = 0; + } else { + struct sa11x0_dma_desc *txd; + size_t bytes = 0; - txd = p->txd_done; + if (p->txd_done && p->txd_done->vd.tx.cookie == cookie) + txd = p->txd_done; + else if (p->txd_load && p->txd_load->vd.tx.cookie == cookie) + txd = p->txd_load; + else + txd = NULL; + + ret = c->status; if (txd) { + dma_addr_t addr = sa11x0_dma_pos(p); unsigned i; + dev_vdbg(d->slave.dev, "tx_status: addr:%x\n", addr); + for (i = 0; i < txd->sglen; i++) { dev_vdbg(d->slave.dev, "tx_status: [%u] %x+%x\n", i, txd->sg[i].addr, txd->sg[i].len); @@ -521,17 +494,11 @@ static enum dma_status sa11x0_dma_tx_status(struct dma_chan *chan, bytes += txd->sg[i].len; } } - if (txd != p->txd_load && p->txd_load) - bytes += p->txd_load->size; - } - list_for_each_entry(txd, &c->desc_issued, node) { - bytes += txd->size; + state->residue = bytes; } - spin_unlock_irqrestore(&c->lock, flags); - - dma_set_tx_state(state, last_complete, last_used, bytes); + spin_unlock_irqrestore(&c->vc.lock, flags); - dev_vdbg(d->slave.dev, "tx_status: bytes 0x%zx\n", bytes); + dev_vdbg(d->slave.dev, "tx_status: bytes 0x%zx\n", state->residue); return ret; } @@ -547,40 +514,20 @@ static void sa11x0_dma_issue_pending(struct dma_chan *chan) struct sa11x0_dma_dev *d = to_sa11x0_dma(chan->device); unsigned long flags; - spin_lock_irqsave(&c->lock, flags); - list_splice_tail_init(&c->desc_submitted, &c->desc_issued); - if (!list_empty(&c->desc_issued)) { - spin_lock(&d->lock); - if (!c->phy && list_empty(&c->node)) { - list_add_tail(&c->node, &d->chan_pending); - tasklet_schedule(&d->task); - dev_dbg(d->slave.dev, "vchan %p: issued\n", c); + spin_lock_irqsave(&c->vc.lock, flags); + if (vchan_issue_pending(&c->vc)) { + if (!c->phy) { + spin_lock(&d->lock); + if (list_empty(&c->node)) { + list_add_tail(&c->node, &d->chan_pending); + tasklet_schedule(&d->task); + dev_dbg(d->slave.dev, "vchan %p: issued\n", &c->vc); + } + spin_unlock(&d->lock); } - spin_unlock(&d->lock); } else - dev_dbg(d->slave.dev, "vchan %p: nothing to issue\n", c); - spin_unlock_irqrestore(&c->lock, flags); -} - -static dma_cookie_t sa11x0_dma_tx_submit(struct dma_async_tx_descriptor *tx) -{ - struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(tx->chan); - struct sa11x0_dma_desc *txd = to_sa11x0_dma_tx(tx); - unsigned long flags; - - spin_lock_irqsave(&c->lock, flags); - c->chan.cookie += 1; - if (c->chan.cookie < 0) - c->chan.cookie = 1; - txd->tx.cookie = c->chan.cookie; - - list_add_tail(&txd->node, &c->desc_submitted); - spin_unlock_irqrestore(&c->lock, flags); - - dev_dbg(tx->chan->device->dev, "vchan %p: txd %p[%x]: submitted\n", - c, txd, txd->tx.cookie); - - return txd->tx.cookie; + dev_dbg(d->slave.dev, "vchan %p: nothing to issue\n", &c->vc); + spin_unlock_irqrestore(&c->vc.lock, flags); } static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( @@ -596,7 +543,7 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( /* SA11x0 channels can only operate in their native direction */ if (dir != (c->ddar & DDAR_RW ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV)) { dev_err(chan->device->dev, "vchan %p: bad DMA direction: DDAR:%08x dir:%u\n", - c, c->ddar, dir); + &c->vc, c->ddar, dir); return NULL; } @@ -612,14 +559,14 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( j += DIV_ROUND_UP(len, DMA_MAX_SIZE & ~DMA_ALIGN) - 1; if (addr & DMA_ALIGN) { dev_dbg(chan->device->dev, "vchan %p: bad buffer alignment: %08x\n", - c, addr); + &c->vc, addr); return NULL; } } txd = kzalloc(sizeof(*txd) + j * sizeof(txd->sg[0]), GFP_ATOMIC); if (!txd) { - dev_dbg(chan->device->dev, "vchan %p: kzalloc failed\n", c); + dev_dbg(chan->device->dev, "vchan %p: kzalloc failed\n", &c->vc); return NULL; } @@ -655,17 +602,73 @@ static struct dma_async_tx_descriptor *sa11x0_dma_prep_slave_sg( } while (len); } - dma_async_tx_descriptor_init(&txd->tx, &c->chan); - txd->tx.flags = flags; - txd->tx.tx_submit = sa11x0_dma_tx_submit; txd->ddar = c->ddar; txd->size = size; txd->sglen = j; dev_dbg(chan->device->dev, "vchan %p: txd %p: size %u nr %u\n", - c, txd, txd->size, txd->sglen); + &c->vc, &txd->vd, txd->size, txd->sglen); - return &txd->tx; + return vchan_tx_prep(&c->vc, &txd->vd, flags); +} + +static struct dma_async_tx_descriptor *sa11x0_dma_prep_dma_cyclic( + struct dma_chan *chan, dma_addr_t addr, size_t size, size_t period, + enum dma_transfer_direction dir, void *context) +{ + struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan); + struct sa11x0_dma_desc *txd; + unsigned i, j, k, sglen, sgperiod; + + /* SA11x0 channels can only operate in their native direction */ + if (dir != (c->ddar & DDAR_RW ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV)) { + dev_err(chan->device->dev, "vchan %p: bad DMA direction: DDAR:%08x dir:%u\n", + &c->vc, c->ddar, dir); + return NULL; + } + + sgperiod = DIV_ROUND_UP(period, DMA_MAX_SIZE & ~DMA_ALIGN); + sglen = size * sgperiod / period; + + /* Do not allow zero-sized txds */ + if (sglen == 0) + return NULL; + + txd = kzalloc(sizeof(*txd) + sglen * sizeof(txd->sg[0]), GFP_ATOMIC); + if (!txd) { + dev_dbg(chan->device->dev, "vchan %p: kzalloc failed\n", &c->vc); + return NULL; + } + + for (i = k = 0; i < size / period; i++) { + size_t tlen, len = period; + + for (j = 0; j < sgperiod; j++, k++) { + tlen = len; + + if (tlen > DMA_MAX_SIZE) { + unsigned mult = DIV_ROUND_UP(tlen, DMA_MAX_SIZE & ~DMA_ALIGN); + tlen = (tlen / mult) & ~DMA_ALIGN; + } + + txd->sg[k].addr = addr; + txd->sg[k].len = tlen; + addr += tlen; + len -= tlen; + } + + WARN_ON(len != 0); + } + + WARN_ON(k != sglen); + + txd->ddar = c->ddar; + txd->size = size; + txd->sglen = sglen; + txd->cyclic = 1; + txd->period = sgperiod; + + return vchan_tx_prep(&c->vc, &txd->vd, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); } static int sa11x0_dma_slave_config(struct sa11x0_dma_chan *c, struct dma_slave_config *cfg) @@ -695,8 +698,8 @@ static int sa11x0_dma_slave_config(struct sa11x0_dma_chan *c, struct dma_slave_c if (maxburst == 8) ddar |= DDAR_BS; - dev_dbg(c->chan.device->dev, "vchan %p: dma_slave_config addr %x width %u burst %u\n", - c, addr, width, maxburst); + dev_dbg(c->vc.chan.device->dev, "vchan %p: dma_slave_config addr %x width %u burst %u\n", + &c->vc, addr, width, maxburst); c->ddar = ddar | (addr & 0xf0000000) | (addr & 0x003ffffc) << 6; @@ -718,16 +721,13 @@ static int sa11x0_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, return sa11x0_dma_slave_config(c, (struct dma_slave_config *)arg); case DMA_TERMINATE_ALL: - dev_dbg(d->slave.dev, "vchan %p: terminate all\n", c); + dev_dbg(d->slave.dev, "vchan %p: terminate all\n", &c->vc); /* Clear the tx descriptor lists */ - spin_lock_irqsave(&c->lock, flags); - list_splice_tail_init(&c->desc_submitted, &head); - list_splice_tail_init(&c->desc_issued, &head); + spin_lock_irqsave(&c->vc.lock, flags); + vchan_get_all_descriptors(&c->vc, &head); p = c->phy; if (p) { - struct sa11x0_dma_desc *txd, *txn; - dev_dbg(d->slave.dev, "pchan %u: terminating\n", p->num); /* vchan is assigned to a pchan - stop the channel */ writel(DCSR_RUN | DCSR_IE | @@ -735,17 +735,13 @@ static int sa11x0_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, DCSR_STRTB | DCSR_DONEB, p->base + DMA_DCSR_C); - list_for_each_entry_safe(txd, txn, &d->desc_complete, node) - if (txd->tx.chan == &c->chan) - list_move(&txd->node, &head); - if (p->txd_load) { if (p->txd_load != p->txd_done) - list_add_tail(&p->txd_load->node, &head); + list_add_tail(&p->txd_load->vd.node, &head); p->txd_load = NULL; } if (p->txd_done) { - list_add_tail(&p->txd_done->node, &head); + list_add_tail(&p->txd_done->vd.node, &head); p->txd_done = NULL; } c->phy = NULL; @@ -754,14 +750,14 @@ static int sa11x0_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, spin_unlock(&d->lock); tasklet_schedule(&d->task); } - spin_unlock_irqrestore(&c->lock, flags); - sa11x0_dma_desc_free(d, &head); + spin_unlock_irqrestore(&c->vc.lock, flags); + vchan_dma_desc_free_list(&c->vc, &head); ret = 0; break; case DMA_PAUSE: - dev_dbg(d->slave.dev, "vchan %p: pause\n", c); - spin_lock_irqsave(&c->lock, flags); + dev_dbg(d->slave.dev, "vchan %p: pause\n", &c->vc); + spin_lock_irqsave(&c->vc.lock, flags); if (c->status == DMA_IN_PROGRESS) { c->status = DMA_PAUSED; @@ -774,26 +770,26 @@ static int sa11x0_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, spin_unlock(&d->lock); } } - spin_unlock_irqrestore(&c->lock, flags); + spin_unlock_irqrestore(&c->vc.lock, flags); ret = 0; break; case DMA_RESUME: - dev_dbg(d->slave.dev, "vchan %p: resume\n", c); - spin_lock_irqsave(&c->lock, flags); + dev_dbg(d->slave.dev, "vchan %p: resume\n", &c->vc); + spin_lock_irqsave(&c->vc.lock, flags); if (c->status == DMA_PAUSED) { c->status = DMA_IN_PROGRESS; p = c->phy; if (p) { writel(DCSR_RUN | DCSR_IE, p->base + DMA_DCSR_S); - } else if (!list_empty(&c->desc_issued)) { + } else if (!list_empty(&c->vc.desc_issued)) { spin_lock(&d->lock); list_add_tail(&c->node, &d->chan_pending); spin_unlock(&d->lock); } } - spin_unlock_irqrestore(&c->lock, flags); + spin_unlock_irqrestore(&c->vc.lock, flags); ret = 0; break; @@ -853,15 +849,13 @@ static int __devinit sa11x0_dma_init_dmadev(struct dma_device *dmadev, return -ENOMEM; } - c->chan.device = dmadev; c->status = DMA_IN_PROGRESS; c->ddar = chan_desc[i].ddar; c->name = chan_desc[i].name; - spin_lock_init(&c->lock); - INIT_LIST_HEAD(&c->desc_submitted); - INIT_LIST_HEAD(&c->desc_issued); INIT_LIST_HEAD(&c->node); - list_add_tail(&c->chan.device_node, &dmadev->channels); + + c->vc.desc_free = sa11x0_dma_free_desc; + vchan_init(&c->vc, dmadev); } return dma_async_device_register(dmadev); @@ -890,8 +884,9 @@ static void sa11x0_dma_free_channels(struct dma_device *dmadev) { struct sa11x0_dma_chan *c, *cn; - list_for_each_entry_safe(c, cn, &dmadev->channels, chan.device_node) { - list_del(&c->chan.device_node); + list_for_each_entry_safe(c, cn, &dmadev->channels, vc.chan.device_node) { + list_del(&c->vc.chan.device_node); + tasklet_kill(&c->vc.task); kfree(c); } } @@ -915,7 +910,6 @@ static int __devinit sa11x0_dma_probe(struct platform_device *pdev) spin_lock_init(&d->lock); INIT_LIST_HEAD(&d->chan_pending); - INIT_LIST_HEAD(&d->desc_complete); d->base = ioremap(res->start, resource_size(res)); if (!d->base) { @@ -947,7 +941,9 @@ static int __devinit sa11x0_dma_probe(struct platform_device *pdev) } dma_cap_set(DMA_SLAVE, d->slave.cap_mask); + dma_cap_set(DMA_CYCLIC, d->slave.cap_mask); d->slave.device_prep_slave_sg = sa11x0_dma_prep_slave_sg; + d->slave.device_prep_dma_cyclic = sa11x0_dma_prep_dma_cyclic; ret = sa11x0_dma_init_dmadev(&d->slave, &pdev->dev); if (ret) { dev_warn(d->slave.dev, "failed to register slave async device: %d\n", diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c index 27f5c78..f4cd946 100644 --- a/drivers/dma/sh/shdma-base.c +++ b/drivers/dma/sh/shdma-base.c @@ -483,6 +483,7 @@ static struct shdma_desc *shdma_add_desc(struct shdma_chan *schan, new->mark = DESC_PREPARED; new->async_tx.flags = flags; new->direction = direction; + new->partial = 0; *len -= copy_size; if (direction == DMA_MEM_TO_MEM || direction == DMA_MEM_TO_DEV) @@ -644,6 +645,14 @@ static int shdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, case DMA_TERMINATE_ALL: spin_lock_irqsave(&schan->chan_lock, flags); ops->halt_channel(schan); + + if (ops->get_partial && !list_empty(&schan->ld_queue)) { + /* Record partial transfer */ + struct shdma_desc *desc = list_first_entry(&schan->ld_queue, + struct shdma_desc, node); + desc->partial = ops->get_partial(schan, desc); + } + spin_unlock_irqrestore(&schan->chan_lock, flags); shdma_chan_ld_cleanup(schan, true); diff --git a/drivers/dma/sh/shdma.c b/drivers/dma/sh/shdma.c index 027c9be..f41bcc5 100644 --- a/drivers/dma/sh/shdma.c +++ b/drivers/dma/sh/shdma.c @@ -381,6 +381,17 @@ static bool sh_dmae_chan_irq(struct shdma_chan *schan, int irq) return true; } +static size_t sh_dmae_get_partial(struct shdma_chan *schan, + struct shdma_desc *sdesc) +{ + struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan, + shdma_chan); + struct sh_dmae_desc *sh_desc = container_of(sdesc, + struct sh_dmae_desc, shdma_desc); + return (sh_desc->hw.tcr - sh_dmae_readl(sh_chan, TCR)) << + sh_chan->xmit_shift; +} + /* Called from error IRQ or NMI */ static bool sh_dmae_reset(struct sh_dmae_device *shdev) { @@ -632,6 +643,7 @@ static const struct shdma_ops sh_dmae_shdma_ops = { .start_xfer = sh_dmae_start_xfer, .embedded_desc = sh_dmae_embedded_desc, .chan_irq = sh_dmae_chan_irq, + .get_partial = sh_dmae_get_partial, }; static int __devinit sh_dmae_probe(struct platform_device *pdev) diff --git a/drivers/dma/virt-dma.c b/drivers/dma/virt-dma.c new file mode 100644 index 0000000..6f80432 --- /dev/null +++ b/drivers/dma/virt-dma.c @@ -0,0 +1,123 @@ +/* + * Virtual DMA channel support for DMAengine + * + * Copyright (C) 2012 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include +#include +#include +#include + +#include "virt-dma.h" + +static struct virt_dma_desc *to_virt_desc(struct dma_async_tx_descriptor *tx) +{ + return container_of(tx, struct virt_dma_desc, tx); +} + +dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *tx) +{ + struct virt_dma_chan *vc = to_virt_chan(tx->chan); + struct virt_dma_desc *vd = to_virt_desc(tx); + unsigned long flags; + dma_cookie_t cookie; + + spin_lock_irqsave(&vc->lock, flags); + cookie = dma_cookie_assign(tx); + + list_add_tail(&vd->node, &vc->desc_submitted); + spin_unlock_irqrestore(&vc->lock, flags); + + dev_dbg(vc->chan.device->dev, "vchan %p: txd %p[%x]: submitted\n", + vc, vd, cookie); + + return cookie; +} +EXPORT_SYMBOL_GPL(vchan_tx_submit); + +struct virt_dma_desc *vchan_find_desc(struct virt_dma_chan *vc, + dma_cookie_t cookie) +{ + struct virt_dma_desc *vd; + + list_for_each_entry(vd, &vc->desc_issued, node) + if (vd->tx.cookie == cookie) + return vd; + + return NULL; +} +EXPORT_SYMBOL_GPL(vchan_find_desc); + +/* + * This tasklet handles the completion of a DMA descriptor by + * calling its callback and freeing it. + */ +static void vchan_complete(unsigned long arg) +{ + struct virt_dma_chan *vc = (struct virt_dma_chan *)arg; + struct virt_dma_desc *vd; + dma_async_tx_callback cb = NULL; + void *cb_data = NULL; + LIST_HEAD(head); + + spin_lock_irq(&vc->lock); + list_splice_tail_init(&vc->desc_completed, &head); + vd = vc->cyclic; + if (vd) { + vc->cyclic = NULL; + cb = vd->tx.callback; + cb_data = vd->tx.callback_param; + } + spin_unlock_irq(&vc->lock); + + if (cb) + cb(cb_data); + + while (!list_empty(&head)) { + vd = list_first_entry(&head, struct virt_dma_desc, node); + cb = vd->tx.callback; + cb_data = vd->tx.callback_param; + + list_del(&vd->node); + + vc->desc_free(vd); + + if (cb) + cb(cb_data); + } +} + +void vchan_dma_desc_free_list(struct virt_dma_chan *vc, struct list_head *head) +{ + while (!list_empty(head)) { + struct virt_dma_desc *vd = list_first_entry(head, + struct virt_dma_desc, node); + list_del(&vd->node); + dev_dbg(vc->chan.device->dev, "txd %p: freeing\n", vd); + vc->desc_free(vd); + } +} +EXPORT_SYMBOL_GPL(vchan_dma_desc_free_list); + +void vchan_init(struct virt_dma_chan *vc, struct dma_device *dmadev) +{ + dma_cookie_init(&vc->chan); + + spin_lock_init(&vc->lock); + INIT_LIST_HEAD(&vc->desc_submitted); + INIT_LIST_HEAD(&vc->desc_issued); + INIT_LIST_HEAD(&vc->desc_completed); + + tasklet_init(&vc->task, vchan_complete, (unsigned long)vc); + + vc->chan.device = dmadev; + list_add_tail(&vc->chan.device_node, &dmadev->channels); +} +EXPORT_SYMBOL_GPL(vchan_init); + +MODULE_AUTHOR("Russell King"); +MODULE_LICENSE("GPL"); diff --git a/drivers/dma/virt-dma.h b/drivers/dma/virt-dma.h new file mode 100644 index 0000000..85c19d6 --- /dev/null +++ b/drivers/dma/virt-dma.h @@ -0,0 +1,152 @@ +/* + * Virtual DMA channel support for DMAengine + * + * Copyright (C) 2012 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef VIRT_DMA_H +#define VIRT_DMA_H + +#include +#include + +#include "dmaengine.h" + +struct virt_dma_desc { + struct dma_async_tx_descriptor tx; + /* protected by vc.lock */ + struct list_head node; +}; + +struct virt_dma_chan { + struct dma_chan chan; + struct tasklet_struct task; + void (*desc_free)(struct virt_dma_desc *); + + spinlock_t lock; + + /* protected by vc.lock */ + struct list_head desc_submitted; + struct list_head desc_issued; + struct list_head desc_completed; + + struct virt_dma_desc *cyclic; +}; + +static inline struct virt_dma_chan *to_virt_chan(struct dma_chan *chan) +{ + return container_of(chan, struct virt_dma_chan, chan); +} + +void vchan_dma_desc_free_list(struct virt_dma_chan *vc, struct list_head *head); +void vchan_init(struct virt_dma_chan *vc, struct dma_device *dmadev); +struct virt_dma_desc *vchan_find_desc(struct virt_dma_chan *, dma_cookie_t); + +/** + * vchan_tx_prep - prepare a descriptor + * vc: virtual channel allocating this descriptor + * vd: virtual descriptor to prepare + * tx_flags: flags argument passed in to prepare function + */ +static inline struct dma_async_tx_descriptor *vchan_tx_prep(struct virt_dma_chan *vc, + struct virt_dma_desc *vd, unsigned long tx_flags) +{ + extern dma_cookie_t vchan_tx_submit(struct dma_async_tx_descriptor *); + + dma_async_tx_descriptor_init(&vd->tx, &vc->chan); + vd->tx.flags = tx_flags; + vd->tx.tx_submit = vchan_tx_submit; + + return &vd->tx; +} + +/** + * vchan_issue_pending - move submitted descriptors to issued list + * vc: virtual channel to update + * + * vc.lock must be held by caller + */ +static inline bool vchan_issue_pending(struct virt_dma_chan *vc) +{ + list_splice_tail_init(&vc->desc_submitted, &vc->desc_issued); + return !list_empty(&vc->desc_issued); +} + +/** + * vchan_cookie_complete - report completion of a descriptor + * vd: virtual descriptor to update + * + * vc.lock must be held by caller + */ +static inline void vchan_cookie_complete(struct virt_dma_desc *vd) +{ + struct virt_dma_chan *vc = to_virt_chan(vd->tx.chan); + + dma_cookie_complete(&vd->tx); + dev_vdbg(vc->chan.device->dev, "txd %p[%x]: marked complete\n", + vd, vd->tx.cookie); + list_add_tail(&vd->node, &vc->desc_completed); + + tasklet_schedule(&vc->task); +} + +/** + * vchan_cyclic_callback - report the completion of a period + * vd: virtual descriptor + */ +static inline void vchan_cyclic_callback(struct virt_dma_desc *vd) +{ + struct virt_dma_chan *vc = to_virt_chan(vd->tx.chan); + + vc->cyclic = vd; + tasklet_schedule(&vc->task); +} + +/** + * vchan_next_desc - peek at the next descriptor to be processed + * vc: virtual channel to obtain descriptor from + * + * vc.lock must be held by caller + */ +static inline struct virt_dma_desc *vchan_next_desc(struct virt_dma_chan *vc) +{ + if (list_empty(&vc->desc_issued)) + return NULL; + + return list_first_entry(&vc->desc_issued, struct virt_dma_desc, node); +} + +/** + * vchan_get_all_descriptors - obtain all submitted and issued descriptors + * vc: virtual channel to get descriptors from + * head: list of descriptors found + * + * vc.lock must be held by caller + * + * Removes all submitted and issued descriptors from internal lists, and + * provides a list of all descriptors found + */ +static inline void vchan_get_all_descriptors(struct virt_dma_chan *vc, + struct list_head *head) +{ + list_splice_tail_init(&vc->desc_submitted, head); + list_splice_tail_init(&vc->desc_issued, head); + list_splice_tail_init(&vc->desc_completed, head); +} + +static inline void vchan_free_chan_resources(struct virt_dma_chan *vc) +{ + unsigned long flags; + LIST_HEAD(head); + + spin_lock_irqsave(&vc->lock, flags); + vchan_get_all_descriptors(vc, &head); + spin_unlock_irqrestore(&vc->lock, flags); + + vchan_dma_desc_free_list(vc, &head); +} + +#endif diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 153980b..b298158 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -6,6 +6,7 @@ #include #include #include +#include #include /* @@ -111,6 +112,8 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *, dmi_table(buf, dmi_len, dmi_num, decode, NULL); + add_device_randomness(buf, dmi_len); + dmi_iounmap(buf, dmi_len); return 0; } diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c index adc0710..c1cdc92 100644 --- a/drivers/firmware/memmap.c +++ b/drivers/firmware/memmap.c @@ -98,7 +98,7 @@ static LIST_HEAD(map_entries); /** * firmware_map_add_entry() - Does the real work to add a firmware memmap entry. * @start: Start of the memory range. - * @end: End of the memory range (inclusive). + * @end: End of the memory range (exclusive). * @type: Type of the memory range. * @entry: Pre-allocated (either kmalloc() or bootmem allocator), uninitialised * entry. @@ -113,7 +113,7 @@ static int firmware_map_add_entry(u64 start, u64 end, BUG_ON(start > end); entry->start = start; - entry->end = end; + entry->end = end - 1; entry->type = type; INIT_LIST_HEAD(&entry->list); kobject_init(&entry->kobj, &memmap_ktype); @@ -148,7 +148,7 @@ static int add_sysfs_fw_map_entry(struct firmware_map_entry *entry) * firmware_map_add_hotplug() - Adds a firmware mapping entry when we do * memory hotplug. * @start: Start of the memory range. - * @end: End of the memory range (inclusive). + * @end: End of the memory range (exclusive) * @type: Type of the memory range. * * Adds a firmware mapping entry. This function is for memory hotplug, it is @@ -175,7 +175,7 @@ int __meminit firmware_map_add_hotplug(u64 start, u64 end, const char *type) /** * firmware_map_add_early() - Adds a firmware mapping entry. * @start: Start of the memory range. - * @end: End of the memory range (inclusive). + * @end: End of the memory range. * @type: Type of the memory range. * * Adds a firmware mapping entry. This function uses the bootmem allocator diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c index 51e0e2d..a330492 100644 --- a/drivers/firmware/pcdp.c +++ b/drivers/firmware/pcdp.c @@ -95,7 +95,7 @@ efi_setup_pcdp_console(char *cmdline) if (efi.hcdp == EFI_INVALID_TABLE_ADDR) return -ENODEV; - pcdp = ioremap(efi.hcdp, 4096); + pcdp = early_ioremap(efi.hcdp, 4096); printk(KERN_INFO "PCDP: v%d at 0x%lx\n", pcdp->rev, efi.hcdp); if (strstr(cmdline, "console=hcdp")) { @@ -131,6 +131,6 @@ efi_setup_pcdp_console(char *cmdline) } out: - iounmap(pcdp); + early_iounmap(pcdp, 4096); return rc; } diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 500844f..60ea284 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1928,6 +1928,7 @@ static const struct hid_device_id hid_ignore_list[] = { { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, + { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) }, { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 41c34f2..1dcb76f 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -333,6 +333,7 @@ #define USB_VENDOR_ID_GRIFFIN 0x077d #define USB_DEVICE_ID_POWERMATE 0x0410 #define USB_DEVICE_ID_SOUNDKNOB 0x04AA +#define USB_DEVICE_ID_RADIOSHARK 0x627a #define USB_VENDOR_ID_GTCO 0x078c #define USB_DEVICE_ID_GTCO_90 0x0090 diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index a220e57..4748086 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -545,8 +545,7 @@ static int vmbus_bus_init(int irq) if (ret) goto err_cleanup; - ret = request_irq(irq, vmbus_isr, IRQF_SAMPLE_RANDOM, - driver_name, hv_acpi_dev); + ret = request_irq(irq, vmbus_isr, 0, driver_name, hv_acpi_dev); if (ret != 0) { pr_err("Unable to request IRQ %d\n", diff --git a/drivers/i2c/busses/i2c-pmcmsp.c b/drivers/i2c/busses/i2c-pmcmsp.c index 07b7447..3d71395 100644 --- a/drivers/i2c/busses/i2c-pmcmsp.c +++ b/drivers/i2c/busses/i2c-pmcmsp.c @@ -306,8 +306,7 @@ static int __devinit pmcmsptwi_probe(struct platform_device *pldev) pmcmsptwi_data.irq = platform_get_irq(pldev, 0); if (pmcmsptwi_data.irq) { rc = request_irq(pmcmsptwi_data.irq, &pmcmsptwi_interrupt, - IRQF_SHARED | IRQF_SAMPLE_RANDOM, - pldev->name, &pmcmsptwi_data); + IRQF_SHARED, pldev->name, &pmcmsptwi_data); if (rc == 0) { /* * Enable 'DONE' interrupt only. diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index a997c7d..1034d93 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c @@ -41,13 +41,6 @@ #include -#ifndef CONFIG_HAVE_CLK -#define clk_get(dev, id) NULL -#define clk_put(clk) do { } while (0) -#define clk_disable(clk) do { } while (0) -#define clk_enable(clk) do { } while (0) -#endif - struct pxa_reg_layout { u32 ibmr; u32 idbr; diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 26488aa..2efa56c 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1312,6 +1312,37 @@ module_exit(i2c_exit); */ /** + * __i2c_transfer - unlocked flavor of i2c_transfer + * @adap: Handle to I2C bus + * @msgs: One or more messages to execute before STOP is issued to + * terminate the operation; each message begins with a START. + * @num: Number of messages to be executed. + * + * Returns negative errno, else the number of messages executed. + * + * Adapter lock must be held when calling this function. No debug logging + * takes place. adap->algo->master_xfer existence isn't checked. + */ +int __i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) +{ + unsigned long orig_jiffies; + int ret, try; + + /* Retry automatically on arbitration loss */ + orig_jiffies = jiffies; + for (ret = 0, try = 0; try <= adap->retries; try++) { + ret = adap->algo->master_xfer(adap, msgs, num); + if (ret != -EAGAIN) + break; + if (time_after(jiffies, orig_jiffies + adap->timeout)) + break; + } + + return ret; +} +EXPORT_SYMBOL(__i2c_transfer); + +/** * i2c_transfer - execute a single or combined I2C message * @adap: Handle to I2C bus * @msgs: One or more messages to execute before STOP is issued to @@ -1325,8 +1356,7 @@ module_exit(i2c_exit); */ int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { - unsigned long orig_jiffies; - int ret, try; + int ret; /* REVISIT the fault reporting model here is weak: * @@ -1364,15 +1394,7 @@ int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) i2c_lock_adapter(adap); } - /* Retry automatically on arbitration loss */ - orig_jiffies = jiffies; - for (ret = 0, try = 0; try <= adap->retries; try++) { - ret = adap->algo->master_xfer(adap, msgs, num); - if (ret != -EAGAIN) - break; - if (time_after(jiffies, orig_jiffies + adap->timeout)) - break; - } + ret = __i2c_transfer(adap, msgs, num); i2c_unlock_adapter(adap); return ret; diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 5a335b5..7172559 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -3064,10 +3064,7 @@ static int cma_join_ib_multicast(struct rdma_id_private *id_priv, id_priv->id.port_num, &rec, comp_mask, GFP_KERNEL, cma_ib_mc_handler, mc); - if (IS_ERR(mc->multicast.ib)) - return PTR_ERR(mc->multicast.ib); - - return 0; + return PTR_RET(mc->multicast.ib); } static void iboe_mcast_work_handler(struct work_struct *work) diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 893cb87..6bf8504 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -1002,23 +1002,18 @@ static ssize_t ucma_set_option(struct ucma_file *file, const char __user *inbuf, if (IS_ERR(ctx)) return PTR_ERR(ctx); - optval = kmalloc(cmd.optlen, GFP_KERNEL); - if (!optval) { - ret = -ENOMEM; - goto out1; - } - - if (copy_from_user(optval, (void __user *) (unsigned long) cmd.optval, - cmd.optlen)) { - ret = -EFAULT; - goto out2; + optval = memdup_user((void __user *) (unsigned long) cmd.optval, + cmd.optlen); + if (IS_ERR(optval)) { + ret = PTR_ERR(optval); + goto out; } ret = ucma_set_option_level(ctx, cmd.level, cmd.optname, optval, cmd.optlen); -out2: kfree(optval); -out1: + +out: ucma_put_ctx(ctx); return ret; } diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index b2f9784..cb5b7f7 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -893,7 +893,9 @@ static int ocrdma_check_qp_params(struct ib_pd *ibpd, struct ocrdma_dev *dev, /* verify consumer QPs are not trying to use GSI QP's CQ */ if ((attrs->qp_type != IB_QPT_GSI) && (dev->gsi_qp_created)) { if ((dev->gsi_sqcq == get_ocrdma_cq(attrs->send_cq)) || - (dev->gsi_sqcq == get_ocrdma_cq(attrs->send_cq))) { + (dev->gsi_sqcq == get_ocrdma_cq(attrs->recv_cq)) || + (dev->gsi_rqcq == get_ocrdma_cq(attrs->send_cq)) || + (dev->gsi_rqcq == get_ocrdma_cq(attrs->recv_cq))) { ocrdma_err("%s(%d) Consumer QP cannot use GSI CQs.\n", __func__, dev->id); return -EINVAL; diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h index 6e19ec8..7b1b8669 100644 --- a/drivers/infiniband/hw/qib/qib.h +++ b/drivers/infiniband/hw/qib/qib.h @@ -656,6 +656,11 @@ struct qib_pportdata { /* 16 congestion entries with each entry corresponding to a SL */ struct ib_cc_congestion_entry_shadow *congestion_entries; + /* Maximum number of congestion control entries that the agent expects + * the manager to send. + */ + u16 cc_supported_table_entries; + /* Total number of congestion control table entries */ u16 total_cct_entry; @@ -667,11 +672,6 @@ struct qib_pportdata { /* CA's max number of 64 entry units in the congestion control table */ u8 cc_max_table_entries; - - /* Maximum number of congestion control entries that the agent expects - * the manager to send. - */ - u8 cc_supported_table_entries; }; /* Observers. Not to be taken lightly, possibly not to ship. */ diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 86df632..ca43901 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -92,6 +92,8 @@ enum { IPOIB_STOP_REAPER = 7, IPOIB_FLAG_ADMIN_CM = 9, IPOIB_FLAG_UMCAST = 10, + IPOIB_STOP_NEIGH_GC = 11, + IPOIB_NEIGH_TBL_FLUSH = 12, IPOIB_MAX_BACKOFF_SECONDS = 16, @@ -260,6 +262,20 @@ struct ipoib_ethtool_st { u16 max_coalesced_frames; }; +struct ipoib_neigh_hash { + struct ipoib_neigh __rcu **buckets; + struct rcu_head rcu; + u32 mask; + u32 size; +}; + +struct ipoib_neigh_table { + struct ipoib_neigh_hash __rcu *htbl; + rwlock_t rwlock; + atomic_t entries; + struct completion flushed; +}; + /* * Device private locking: network stack tx_lock protects members used * in TX fast path, lock protects everything else. lock nests inside @@ -279,6 +295,8 @@ struct ipoib_dev_priv { struct rb_root path_tree; struct list_head path_list; + struct ipoib_neigh_table ntbl; + struct ipoib_mcast *broadcast; struct list_head multicast_list; struct rb_root multicast_tree; @@ -291,7 +309,7 @@ struct ipoib_dev_priv { struct work_struct flush_heavy; struct work_struct restart_task; struct delayed_work ah_reap_task; - + struct delayed_work neigh_reap_task; struct ib_device *ca; u8 port; u16 pkey; @@ -377,13 +395,16 @@ struct ipoib_neigh { #ifdef CONFIG_INFINIBAND_IPOIB_CM struct ipoib_cm_tx *cm; #endif - union ib_gid dgid; + u8 daddr[INFINIBAND_ALEN]; struct sk_buff_head queue; - struct neighbour *neighbour; struct net_device *dev; struct list_head list; + struct ipoib_neigh __rcu *hnext; + struct rcu_head rcu; + atomic_t refcnt; + unsigned long alive; }; #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) @@ -394,21 +415,17 @@ static inline int ipoib_ud_need_sg(unsigned int ib_mtu) return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE; } -/* - * We stash a pointer to our private neighbour information after our - * hardware address in neigh->ha. The ALIGN() expression here makes - * sure that this pointer is stored aligned so that an unaligned - * load is not needed to dereference it. - */ -static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) +void ipoib_neigh_dtor(struct ipoib_neigh *neigh); +static inline void ipoib_neigh_put(struct ipoib_neigh *neigh) { - return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + - INFINIBAND_ALEN, sizeof(void *)); + if (atomic_dec_and_test(&neigh->refcnt)) + ipoib_neigh_dtor(neigh); } - -struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, +struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr); +struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr, struct net_device *dev); -void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); +void ipoib_neigh_free(struct ipoib_neigh *neigh); +void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid); extern struct workqueue_struct *ipoib_workqueue; @@ -425,7 +442,6 @@ static inline void ipoib_put_ah(struct ipoib_ah *ah) { kref_put(&ah->ref, ipoib_free_ah); } - int ipoib_open(struct net_device *dev); int ipoib_add_pkey_attr(struct net_device *dev); int ipoib_add_umcast_attr(struct net_device *dev); @@ -455,7 +471,7 @@ void ipoib_dev_cleanup(struct net_device *dev); void ipoib_mcast_join_task(struct work_struct *work); void ipoib_mcast_carrier_on_task(struct work_struct *work); -void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); +void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb); void ipoib_mcast_restart_task(struct work_struct *work); int ipoib_mcast_start_thread(struct net_device *dev); @@ -517,10 +533,10 @@ static inline int ipoib_cm_admin_enabled(struct net_device *dev) test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); } -static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) +static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) { struct ipoib_dev_priv *priv = netdev_priv(dev); - return IPOIB_CM_SUPPORTED(n->ha) && + return IPOIB_CM_SUPPORTED(hwaddr) && test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); } @@ -575,7 +591,7 @@ static inline int ipoib_cm_admin_enabled(struct net_device *dev) { return 0; } -static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) +static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) { return 0; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 6d66ab0..95ecf4e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -811,9 +811,7 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) if (neigh) { neigh->cm = NULL; list_del(&neigh->list); - if (neigh->ah) - ipoib_put_ah(neigh->ah); - ipoib_neigh_free(dev, neigh); + ipoib_neigh_free(neigh); tx->neigh = NULL; } @@ -1230,9 +1228,7 @@ static int ipoib_cm_tx_handler(struct ib_cm_id *cm_id, if (neigh) { neigh->cm = NULL; list_del(&neigh->list); - if (neigh->ah) - ipoib_put_ah(neigh->ah); - ipoib_neigh_free(dev, neigh); + ipoib_neigh_free(neigh); tx->neigh = NULL; } @@ -1279,7 +1275,7 @@ void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) list_move(&tx->list, &priv->cm.reap_list); queue_work(ipoib_workqueue, &priv->cm.reap_task); ipoib_dbg(priv, "Reap connection for gid %pI6\n", - tx->neigh->dgid.raw); + tx->neigh->daddr + 4); tx->neigh = NULL; } } @@ -1304,7 +1300,7 @@ static void ipoib_cm_tx_start(struct work_struct *work) p = list_entry(priv->cm.start_list.next, typeof(*p), list); list_del_init(&p->list); neigh = p->neigh; - qpn = IPOIB_QPN(neigh->neighbour->ha); + qpn = IPOIB_QPN(neigh->daddr); memcpy(&pathrec, &p->path->pathrec, sizeof pathrec); spin_unlock_irqrestore(&priv->lock, flags); @@ -1320,9 +1316,7 @@ static void ipoib_cm_tx_start(struct work_struct *work) if (neigh) { neigh->cm = NULL; list_del(&neigh->list); - if (neigh->ah) - ipoib_put_ah(neigh->ah); - ipoib_neigh_free(dev, neigh); + ipoib_neigh_free(neigh); } list_del(&p->list); kfree(p); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index bbee4b2..97920b7 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -46,7 +46,8 @@ #include #include -#include +#include +#include MODULE_AUTHOR("Roland Dreier"); MODULE_DESCRIPTION("IP-over-InfiniBand net driver"); @@ -84,6 +85,7 @@ struct ib_sa_client ipoib_sa_client; static void ipoib_add_one(struct ib_device *device); static void ipoib_remove_one(struct ib_device *device); +static void ipoib_neigh_reclaim(struct rcu_head *rp); static struct ib_client ipoib_client = { .name = "ipoib", @@ -264,30 +266,15 @@ static int __path_add(struct net_device *dev, struct ipoib_path *path) static void path_free(struct net_device *dev, struct ipoib_path *path) { - struct ipoib_dev_priv *priv = netdev_priv(dev); - struct ipoib_neigh *neigh, *tn; struct sk_buff *skb; - unsigned long flags; while ((skb = __skb_dequeue(&path->queue))) dev_kfree_skb_irq(skb); - spin_lock_irqsave(&priv->lock, flags); - - list_for_each_entry_safe(neigh, tn, &path->neigh_list, list) { - /* - * It's safe to call ipoib_put_ah() inside priv->lock - * here, because we know that path->ah will always - * hold one more reference, so ipoib_put_ah() will - * never do more than decrement the ref count. - */ - if (neigh->ah) - ipoib_put_ah(neigh->ah); - - ipoib_neigh_free(dev, neigh); - } + ipoib_dbg(netdev_priv(dev), "path_free\n"); - spin_unlock_irqrestore(&priv->lock, flags); + /* remove all neigh connected to this path */ + ipoib_del_neighs_by_gid(dev, path->pathrec.dgid.raw); if (path->ah) ipoib_put_ah(path->ah); @@ -458,19 +445,15 @@ static void path_rec_completion(int status, } kref_get(&path->ah->ref); neigh->ah = path->ah; - memcpy(&neigh->dgid.raw, &path->pathrec.dgid.raw, - sizeof(union ib_gid)); - if (ipoib_cm_enabled(dev, neigh->neighbour)) { + if (ipoib_cm_enabled(dev, neigh->daddr)) { if (!ipoib_cm_get(neigh)) ipoib_cm_set(neigh, ipoib_cm_create_tx(dev, path, neigh)); if (!ipoib_cm_get(neigh)) { list_del(&neigh->list); - if (neigh->ah) - ipoib_put_ah(neigh->ah); - ipoib_neigh_free(dev, neigh); + ipoib_neigh_free(neigh); continue; } } @@ -555,15 +538,15 @@ static int path_rec_start(struct net_device *dev, return 0; } -/* called with rcu_read_lock */ -static void neigh_add_path(struct sk_buff *skb, struct neighbour *n, struct net_device *dev) +static void neigh_add_path(struct sk_buff *skb, u8 *daddr, + struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_path *path; struct ipoib_neigh *neigh; unsigned long flags; - neigh = ipoib_neigh_alloc(n, skb->dev); + neigh = ipoib_neigh_alloc(daddr, dev); if (!neigh) { ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); @@ -572,9 +555,9 @@ static void neigh_add_path(struct sk_buff *skb, struct neighbour *n, struct net_ spin_lock_irqsave(&priv->lock, flags); - path = __path_find(dev, n->ha + 4); + path = __path_find(dev, daddr + 4); if (!path) { - path = path_rec_create(dev, n->ha + 4); + path = path_rec_create(dev, daddr + 4); if (!path) goto err_path; @@ -586,17 +569,13 @@ static void neigh_add_path(struct sk_buff *skb, struct neighbour *n, struct net_ if (path->ah) { kref_get(&path->ah->ref); neigh->ah = path->ah; - memcpy(&neigh->dgid.raw, &path->pathrec.dgid.raw, - sizeof(union ib_gid)); - if (ipoib_cm_enabled(dev, neigh->neighbour)) { + if (ipoib_cm_enabled(dev, neigh->daddr)) { if (!ipoib_cm_get(neigh)) ipoib_cm_set(neigh, ipoib_cm_create_tx(dev, path, neigh)); if (!ipoib_cm_get(neigh)) { list_del(&neigh->list); - if (neigh->ah) - ipoib_put_ah(neigh->ah); - ipoib_neigh_free(dev, neigh); + ipoib_neigh_free(neigh); goto err_drop; } if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) @@ -608,7 +587,8 @@ static void neigh_add_path(struct sk_buff *skb, struct neighbour *n, struct net_ } } else { spin_unlock_irqrestore(&priv->lock, flags); - ipoib_send(dev, skb, path->ah, IPOIB_QPN(n->ha)); + ipoib_send(dev, skb, path->ah, IPOIB_QPN(daddr)); + ipoib_neigh_put(neigh); return; } } else { @@ -621,35 +601,20 @@ static void neigh_add_path(struct sk_buff *skb, struct neighbour *n, struct net_ } spin_unlock_irqrestore(&priv->lock, flags); + ipoib_neigh_put(neigh); return; err_list: list_del(&neigh->list); err_path: - ipoib_neigh_free(dev, neigh); + ipoib_neigh_free(neigh); err_drop: ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); spin_unlock_irqrestore(&priv->lock, flags); -} - -/* called with rcu_read_lock */ -static void ipoib_path_lookup(struct sk_buff *skb, struct neighbour *n, struct net_device *dev) -{ - struct ipoib_dev_priv *priv = netdev_priv(skb->dev); - - /* Look up path record for unicasts */ - if (n->ha[4] != 0xff) { - neigh_add_path(skb, n, dev); - return; - } - - /* Add in the P_Key for multicasts */ - n->ha[8] = (priv->pkey >> 8) & 0xff; - n->ha[9] = priv->pkey & 0xff; - ipoib_mcast_send(dev, n->ha + 4, skb); + ipoib_neigh_put(neigh); } static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev, @@ -710,96 +675,80 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ipoib_neigh *neigh; - struct neighbour *n = NULL; + struct ipoib_cb *cb = (struct ipoib_cb *) skb->cb; + struct ipoib_header *header; unsigned long flags; - rcu_read_lock(); - if (likely(skb_dst(skb))) { - n = dst_neigh_lookup_skb(skb_dst(skb), skb); - if (!n) { + header = (struct ipoib_header *) skb->data; + + if (unlikely(cb->hwaddr[4] == 0xff)) { + /* multicast, arrange "if" according to probability */ + if ((header->proto != htons(ETH_P_IP)) && + (header->proto != htons(ETH_P_IPV6)) && + (header->proto != htons(ETH_P_ARP)) && + (header->proto != htons(ETH_P_RARP))) { + /* ethertype not supported by IPoIB */ ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); - goto unlock; + return NETDEV_TX_OK; } + /* Add in the P_Key for multicast*/ + cb->hwaddr[8] = (priv->pkey >> 8) & 0xff; + cb->hwaddr[9] = priv->pkey & 0xff; + + neigh = ipoib_neigh_get(dev, cb->hwaddr); + if (likely(neigh)) + goto send_using_neigh; + ipoib_mcast_send(dev, cb->hwaddr, skb); + return NETDEV_TX_OK; } - if (likely(n)) { - if (unlikely(!*to_ipoib_neigh(n))) { - ipoib_path_lookup(skb, n, dev); - goto unlock; - } - - neigh = *to_ipoib_neigh(n); - if (unlikely((memcmp(&neigh->dgid.raw, - n->ha + 4, - sizeof(union ib_gid))) || - (neigh->dev != dev))) { - spin_lock_irqsave(&priv->lock, flags); - /* - * It's safe to call ipoib_put_ah() inside - * priv->lock here, because we know that - * path->ah will always hold one more reference, - * so ipoib_put_ah() will never do more than - * decrement the ref count. - */ - if (neigh->ah) - ipoib_put_ah(neigh->ah); - list_del(&neigh->list); - ipoib_neigh_free(dev, neigh); - spin_unlock_irqrestore(&priv->lock, flags); - ipoib_path_lookup(skb, n, dev); - goto unlock; + /* unicast, arrange "switch" according to probability */ + switch (header->proto) { + case htons(ETH_P_IP): + case htons(ETH_P_IPV6): + neigh = ipoib_neigh_get(dev, cb->hwaddr); + if (unlikely(!neigh)) { + neigh_add_path(skb, cb->hwaddr, dev); + return NETDEV_TX_OK; } + break; + case htons(ETH_P_ARP): + case htons(ETH_P_RARP): + /* for unicast ARP and RARP should always perform path find */ + unicast_arp_send(skb, dev, cb); + return NETDEV_TX_OK; + default: + /* ethertype not supported by IPoIB */ + ++dev->stats.tx_dropped; + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } - if (ipoib_cm_get(neigh)) { - if (ipoib_cm_up(neigh)) { - ipoib_cm_send(dev, skb, ipoib_cm_get(neigh)); - goto unlock; - } - } else if (neigh->ah) { - ipoib_send(dev, skb, neigh->ah, IPOIB_QPN(n->ha)); - goto unlock; +send_using_neigh: + /* note we now hold a ref to neigh */ + if (ipoib_cm_get(neigh)) { + if (ipoib_cm_up(neigh)) { + ipoib_cm_send(dev, skb, ipoib_cm_get(neigh)); + goto unref; } + } else if (neigh->ah) { + ipoib_send(dev, skb, neigh->ah, IPOIB_QPN(cb->hwaddr)); + goto unref; + } - if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) { - spin_lock_irqsave(&priv->lock, flags); - __skb_queue_tail(&neigh->queue, skb); - spin_unlock_irqrestore(&priv->lock, flags); - } else { - ++dev->stats.tx_dropped; - dev_kfree_skb_any(skb); - } + if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) { + spin_lock_irqsave(&priv->lock, flags); + __skb_queue_tail(&neigh->queue, skb); + spin_unlock_irqrestore(&priv->lock, flags); } else { - struct ipoib_cb *cb = (struct ipoib_cb *) skb->cb; - - if (cb->hwaddr[4] == 0xff) { - /* Add in the P_Key for multicast*/ - cb->hwaddr[8] = (priv->pkey >> 8) & 0xff; - cb->hwaddr[9] = priv->pkey & 0xff; + ++dev->stats.tx_dropped; + dev_kfree_skb_any(skb); + } - ipoib_mcast_send(dev, cb->hwaddr + 4, skb); - } else { - /* unicast GID -- should be ARP or RARP reply */ - - if ((be16_to_cpup((__be16 *) skb->data) != ETH_P_ARP) && - (be16_to_cpup((__be16 *) skb->data) != ETH_P_RARP)) { - ipoib_warn(priv, "Unicast, no %s: type %04x, QPN %06x %pI6\n", - skb_dst(skb) ? "neigh" : "dst", - be16_to_cpup((__be16 *) skb->data), - IPOIB_QPN(cb->hwaddr), - cb->hwaddr + 4); - dev_kfree_skb_any(skb); - ++dev->stats.tx_dropped; - goto unlock; - } +unref: + ipoib_neigh_put(neigh); - unicast_arp_send(skb, dev, cb); - } - } -unlock: - if (n) - neigh_release(n); - rcu_read_unlock(); return NETDEV_TX_OK; } @@ -821,6 +770,7 @@ static int ipoib_hard_header(struct sk_buff *skb, const void *daddr, const void *saddr, unsigned len) { struct ipoib_header *header; + struct ipoib_cb *cb = (struct ipoib_cb *) skb->cb; header = (struct ipoib_header *) skb_push(skb, sizeof *header); @@ -828,14 +778,11 @@ static int ipoib_hard_header(struct sk_buff *skb, header->reserved = 0; /* - * If we don't have a dst_entry structure, stuff the + * we don't rely on dst_entry structure, always stuff the * destination address into skb->cb so we can figure out where * to send the packet later. */ - if (!skb_dst(skb)) { - struct ipoib_cb *cb = (struct ipoib_cb *) skb->cb; - memcpy(cb->hwaddr, daddr, INFINIBAND_ALEN); - } + memcpy(cb->hwaddr, daddr, INFINIBAND_ALEN); return 0; } @@ -852,86 +799,438 @@ static void ipoib_set_mcast_list(struct net_device *dev) queue_work(ipoib_workqueue, &priv->restart_task); } -static void ipoib_neigh_cleanup(struct neighbour *n) +static u32 ipoib_addr_hash(struct ipoib_neigh_hash *htbl, u8 *daddr) { - struct ipoib_neigh *neigh; - struct ipoib_dev_priv *priv = netdev_priv(n->dev); + /* + * Use only the address parts that contributes to spreading + * The subnet prefix is not used as one can not connect to + * same remote port (GUID) using the same remote QPN via two + * different subnets. + */ + /* qpn octets[1:4) & port GUID octets[12:20) */ + u32 *daddr_32 = (u32 *) daddr; + u32 hv; + + hv = jhash_3words(daddr_32[3], daddr_32[4], 0xFFFFFF & daddr_32[0], 0); + return hv & htbl->mask; +} + +struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + struct ipoib_neigh_table *ntbl = &priv->ntbl; + struct ipoib_neigh_hash *htbl; + struct ipoib_neigh *neigh = NULL; + u32 hash_val; + + rcu_read_lock_bh(); + + htbl = rcu_dereference_bh(ntbl->htbl); + + if (!htbl) + goto out_unlock; + + hash_val = ipoib_addr_hash(htbl, daddr); + for (neigh = rcu_dereference_bh(htbl->buckets[hash_val]); + neigh != NULL; + neigh = rcu_dereference_bh(neigh->hnext)) { + if (memcmp(daddr, neigh->daddr, INFINIBAND_ALEN) == 0) { + /* found, take one ref on behalf of the caller */ + if (!atomic_inc_not_zero(&neigh->refcnt)) { + /* deleted */ + neigh = NULL; + goto out_unlock; + } + neigh->alive = jiffies; + goto out_unlock; + } + } + +out_unlock: + rcu_read_unlock_bh(); + return neigh; +} + +static void __ipoib_reap_neigh(struct ipoib_dev_priv *priv) +{ + struct ipoib_neigh_table *ntbl = &priv->ntbl; + struct ipoib_neigh_hash *htbl; + unsigned long neigh_obsolete; + unsigned long dt; unsigned long flags; - struct ipoib_ah *ah = NULL; + int i; - neigh = *to_ipoib_neigh(n); - if (neigh) - priv = netdev_priv(neigh->dev); - else + if (test_bit(IPOIB_STOP_NEIGH_GC, &priv->flags)) return; - ipoib_dbg(priv, - "neigh_cleanup for %06x %pI6\n", - IPOIB_QPN(n->ha), - n->ha + 4); - spin_lock_irqsave(&priv->lock, flags); + write_lock_bh(&ntbl->rwlock); + + htbl = rcu_dereference_protected(ntbl->htbl, + lockdep_is_held(&ntbl->rwlock)); + + if (!htbl) + goto out_unlock; + + /* neigh is obsolete if it was idle for two GC periods */ + dt = 2 * arp_tbl.gc_interval; + neigh_obsolete = jiffies - dt; + /* handle possible race condition */ + if (test_bit(IPOIB_STOP_NEIGH_GC, &priv->flags)) + goto out_unlock; + + for (i = 0; i < htbl->size; i++) { + struct ipoib_neigh *neigh; + struct ipoib_neigh __rcu **np = &htbl->buckets[i]; + + while ((neigh = rcu_dereference_protected(*np, + lockdep_is_held(&ntbl->rwlock))) != NULL) { + /* was the neigh idle for two GC periods */ + if (time_after(neigh_obsolete, neigh->alive)) { + rcu_assign_pointer(*np, + rcu_dereference_protected(neigh->hnext, + lockdep_is_held(&ntbl->rwlock))); + /* remove from path/mc list */ + spin_lock_irqsave(&priv->lock, flags); + list_del(&neigh->list); + spin_unlock_irqrestore(&priv->lock, flags); + call_rcu(&neigh->rcu, ipoib_neigh_reclaim); + } else { + np = &neigh->hnext; + } - if (neigh->ah) - ah = neigh->ah; - list_del(&neigh->list); - ipoib_neigh_free(n->dev, neigh); + } + } - spin_unlock_irqrestore(&priv->lock, flags); +out_unlock: + write_unlock_bh(&ntbl->rwlock); +} - if (ah) - ipoib_put_ah(ah); +static void ipoib_reap_neigh(struct work_struct *work) +{ + struct ipoib_dev_priv *priv = + container_of(work, struct ipoib_dev_priv, neigh_reap_task.work); + + __ipoib_reap_neigh(priv); + + if (!test_bit(IPOIB_STOP_NEIGH_GC, &priv->flags)) + queue_delayed_work(ipoib_workqueue, &priv->neigh_reap_task, + arp_tbl.gc_interval); } -struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neighbour, + +static struct ipoib_neigh *ipoib_neigh_ctor(u8 *daddr, struct net_device *dev) { struct ipoib_neigh *neigh; - neigh = kmalloc(sizeof *neigh, GFP_ATOMIC); + neigh = kzalloc(sizeof *neigh, GFP_ATOMIC); if (!neigh) return NULL; - neigh->neighbour = neighbour; neigh->dev = dev; - memset(&neigh->dgid.raw, 0, sizeof (union ib_gid)); - *to_ipoib_neigh(neighbour) = neigh; + memcpy(&neigh->daddr, daddr, sizeof(neigh->daddr)); skb_queue_head_init(&neigh->queue); + INIT_LIST_HEAD(&neigh->list); ipoib_cm_set(neigh, NULL); + /* one ref on behalf of the caller */ + atomic_set(&neigh->refcnt, 1); + + return neigh; +} + +struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr, + struct net_device *dev) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + struct ipoib_neigh_table *ntbl = &priv->ntbl; + struct ipoib_neigh_hash *htbl; + struct ipoib_neigh *neigh; + u32 hash_val; + + write_lock_bh(&ntbl->rwlock); + + htbl = rcu_dereference_protected(ntbl->htbl, + lockdep_is_held(&ntbl->rwlock)); + if (!htbl) { + neigh = NULL; + goto out_unlock; + } + + /* need to add a new neigh, but maybe some other thread succeeded? + * recalc hash, maybe hash resize took place so we do a search + */ + hash_val = ipoib_addr_hash(htbl, daddr); + for (neigh = rcu_dereference_protected(htbl->buckets[hash_val], + lockdep_is_held(&ntbl->rwlock)); + neigh != NULL; + neigh = rcu_dereference_protected(neigh->hnext, + lockdep_is_held(&ntbl->rwlock))) { + if (memcmp(daddr, neigh->daddr, INFINIBAND_ALEN) == 0) { + /* found, take one ref on behalf of the caller */ + if (!atomic_inc_not_zero(&neigh->refcnt)) { + /* deleted */ + neigh = NULL; + break; + } + neigh->alive = jiffies; + goto out_unlock; + } + } + + neigh = ipoib_neigh_ctor(daddr, dev); + if (!neigh) + goto out_unlock; + + /* one ref on behalf of the hash table */ + atomic_inc(&neigh->refcnt); + neigh->alive = jiffies; + /* put in hash */ + rcu_assign_pointer(neigh->hnext, + rcu_dereference_protected(htbl->buckets[hash_val], + lockdep_is_held(&ntbl->rwlock))); + rcu_assign_pointer(htbl->buckets[hash_val], neigh); + atomic_inc(&ntbl->entries); + +out_unlock: + write_unlock_bh(&ntbl->rwlock); return neigh; } -void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh) +void ipoib_neigh_dtor(struct ipoib_neigh *neigh) { + /* neigh reference count was dropprd to zero */ + struct net_device *dev = neigh->dev; + struct ipoib_dev_priv *priv = netdev_priv(dev); struct sk_buff *skb; - *to_ipoib_neigh(neigh->neighbour) = NULL; + if (neigh->ah) + ipoib_put_ah(neigh->ah); while ((skb = __skb_dequeue(&neigh->queue))) { ++dev->stats.tx_dropped; dev_kfree_skb_any(skb); } if (ipoib_cm_get(neigh)) ipoib_cm_destroy_tx(ipoib_cm_get(neigh)); + ipoib_dbg(netdev_priv(dev), + "neigh free for %06x %pI6\n", + IPOIB_QPN(neigh->daddr), + neigh->daddr + 4); kfree(neigh); + if (atomic_dec_and_test(&priv->ntbl.entries)) { + if (test_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags)) + complete(&priv->ntbl.flushed); + } +} + +static void ipoib_neigh_reclaim(struct rcu_head *rp) +{ + /* Called as a result of removal from hash table */ + struct ipoib_neigh *neigh = container_of(rp, struct ipoib_neigh, rcu); + /* note TX context may hold another ref */ + ipoib_neigh_put(neigh); } -static int ipoib_neigh_setup_dev(struct net_device *dev, struct neigh_parms *parms) +void ipoib_neigh_free(struct ipoib_neigh *neigh) { - parms->neigh_cleanup = ipoib_neigh_cleanup; + struct net_device *dev = neigh->dev; + struct ipoib_dev_priv *priv = netdev_priv(dev); + struct ipoib_neigh_table *ntbl = &priv->ntbl; + struct ipoib_neigh_hash *htbl; + struct ipoib_neigh __rcu **np; + struct ipoib_neigh *n; + u32 hash_val; + + write_lock_bh(&ntbl->rwlock); + + htbl = rcu_dereference_protected(ntbl->htbl, + lockdep_is_held(&ntbl->rwlock)); + if (!htbl) + goto out_unlock; + + hash_val = ipoib_addr_hash(htbl, neigh->daddr); + np = &htbl->buckets[hash_val]; + for (n = rcu_dereference_protected(*np, + lockdep_is_held(&ntbl->rwlock)); + n != NULL; + n = rcu_dereference_protected(neigh->hnext, + lockdep_is_held(&ntbl->rwlock))) { + if (n == neigh) { + /* found */ + rcu_assign_pointer(*np, + rcu_dereference_protected(neigh->hnext, + lockdep_is_held(&ntbl->rwlock))); + call_rcu(&neigh->rcu, ipoib_neigh_reclaim); + goto out_unlock; + } else { + np = &n->hnext; + } + } + +out_unlock: + write_unlock_bh(&ntbl->rwlock); + +} + +static int ipoib_neigh_hash_init(struct ipoib_dev_priv *priv) +{ + struct ipoib_neigh_table *ntbl = &priv->ntbl; + struct ipoib_neigh_hash *htbl; + struct ipoib_neigh **buckets; + u32 size; + + clear_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags); + ntbl->htbl = NULL; + rwlock_init(&ntbl->rwlock); + htbl = kzalloc(sizeof(*htbl), GFP_KERNEL); + if (!htbl) + return -ENOMEM; + set_bit(IPOIB_STOP_NEIGH_GC, &priv->flags); + size = roundup_pow_of_two(arp_tbl.gc_thresh3); + buckets = kzalloc(size * sizeof(*buckets), GFP_KERNEL); + if (!buckets) { + kfree(htbl); + return -ENOMEM; + } + htbl->size = size; + htbl->mask = (size - 1); + htbl->buckets = buckets; + ntbl->htbl = htbl; + atomic_set(&ntbl->entries, 0); + + /* start garbage collection */ + clear_bit(IPOIB_STOP_NEIGH_GC, &priv->flags); + queue_delayed_work(ipoib_workqueue, &priv->neigh_reap_task, + arp_tbl.gc_interval); return 0; } +static void neigh_hash_free_rcu(struct rcu_head *head) +{ + struct ipoib_neigh_hash *htbl = container_of(head, + struct ipoib_neigh_hash, + rcu); + struct ipoib_neigh __rcu **buckets = htbl->buckets; + + kfree(buckets); + kfree(htbl); +} + +void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + struct ipoib_neigh_table *ntbl = &priv->ntbl; + struct ipoib_neigh_hash *htbl; + unsigned long flags; + int i; + + /* remove all neigh connected to a given path or mcast */ + write_lock_bh(&ntbl->rwlock); + + htbl = rcu_dereference_protected(ntbl->htbl, + lockdep_is_held(&ntbl->rwlock)); + + if (!htbl) + goto out_unlock; + + for (i = 0; i < htbl->size; i++) { + struct ipoib_neigh *neigh; + struct ipoib_neigh __rcu **np = &htbl->buckets[i]; + + while ((neigh = rcu_dereference_protected(*np, + lockdep_is_held(&ntbl->rwlock))) != NULL) { + /* delete neighs belong to this parent */ + if (!memcmp(gid, neigh->daddr + 4, sizeof (union ib_gid))) { + rcu_assign_pointer(*np, + rcu_dereference_protected(neigh->hnext, + lockdep_is_held(&ntbl->rwlock))); + /* remove from parent list */ + spin_lock_irqsave(&priv->lock, flags); + list_del(&neigh->list); + spin_unlock_irqrestore(&priv->lock, flags); + call_rcu(&neigh->rcu, ipoib_neigh_reclaim); + } else { + np = &neigh->hnext; + } + + } + } +out_unlock: + write_unlock_bh(&ntbl->rwlock); +} + +static void ipoib_flush_neighs(struct ipoib_dev_priv *priv) +{ + struct ipoib_neigh_table *ntbl = &priv->ntbl; + struct ipoib_neigh_hash *htbl; + unsigned long flags; + int i; + + write_lock_bh(&ntbl->rwlock); + + htbl = rcu_dereference_protected(ntbl->htbl, + lockdep_is_held(&ntbl->rwlock)); + if (!htbl) + goto out_unlock; + + for (i = 0; i < htbl->size; i++) { + struct ipoib_neigh *neigh; + struct ipoib_neigh __rcu **np = &htbl->buckets[i]; + + while ((neigh = rcu_dereference_protected(*np, + lockdep_is_held(&ntbl->rwlock))) != NULL) { + rcu_assign_pointer(*np, + rcu_dereference_protected(neigh->hnext, + lockdep_is_held(&ntbl->rwlock))); + /* remove from path/mc list */ + spin_lock_irqsave(&priv->lock, flags); + list_del(&neigh->list); + spin_unlock_irqrestore(&priv->lock, flags); + call_rcu(&neigh->rcu, ipoib_neigh_reclaim); + } + } + + rcu_assign_pointer(ntbl->htbl, NULL); + call_rcu(&htbl->rcu, neigh_hash_free_rcu); + +out_unlock: + write_unlock_bh(&ntbl->rwlock); +} + +static void ipoib_neigh_hash_uninit(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + int stopped; + + ipoib_dbg(priv, "ipoib_neigh_hash_uninit\n"); + init_completion(&priv->ntbl.flushed); + set_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags); + + /* Stop GC if called at init fail need to cancel work */ + stopped = test_and_set_bit(IPOIB_STOP_NEIGH_GC, &priv->flags); + if (!stopped) + cancel_delayed_work(&priv->neigh_reap_task); + + if (atomic_read(&priv->ntbl.entries)) { + ipoib_flush_neighs(priv); + wait_for_completion(&priv->ntbl.flushed); + } +} + + int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port) { struct ipoib_dev_priv *priv = netdev_priv(dev); + if (ipoib_neigh_hash_init(priv) < 0) + goto out; /* Allocate RX/TX "rings" to hold queued skbs */ priv->rx_ring = kzalloc(ipoib_recvq_size * sizeof *priv->rx_ring, GFP_KERNEL); if (!priv->rx_ring) { printk(KERN_WARNING "%s: failed to allocate RX ring (%d entries)\n", ca->name, ipoib_recvq_size); - goto out; + goto out_neigh_hash_cleanup; } priv->tx_ring = vzalloc(ipoib_sendq_size * sizeof *priv->tx_ring); @@ -954,6 +1253,8 @@ out_tx_ring_cleanup: out_rx_ring_cleanup: kfree(priv->rx_ring); +out_neigh_hash_cleanup: + ipoib_neigh_hash_uninit(dev); out: return -ENOMEM; } @@ -966,6 +1267,9 @@ void ipoib_dev_cleanup(struct net_device *dev) /* Delete any child interfaces first */ list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) { + /* Stop GC on child */ + set_bit(IPOIB_STOP_NEIGH_GC, &cpriv->flags); + cancel_delayed_work(&cpriv->neigh_reap_task); unregister_netdev(cpriv->dev); ipoib_dev_cleanup(cpriv->dev); free_netdev(cpriv->dev); @@ -978,6 +1282,8 @@ void ipoib_dev_cleanup(struct net_device *dev) priv->rx_ring = NULL; priv->tx_ring = NULL; + + ipoib_neigh_hash_uninit(dev); } static const struct header_ops ipoib_header_ops = { @@ -992,7 +1298,6 @@ static const struct net_device_ops ipoib_netdev_ops = { .ndo_start_xmit = ipoib_start_xmit, .ndo_tx_timeout = ipoib_timeout, .ndo_set_rx_mode = ipoib_set_mcast_list, - .ndo_neigh_setup = ipoib_neigh_setup_dev, }; static void ipoib_setup(struct net_device *dev) @@ -1041,6 +1346,7 @@ static void ipoib_setup(struct net_device *dev) INIT_WORK(&priv->flush_heavy, ipoib_ib_dev_flush_heavy); INIT_WORK(&priv->restart_task, ipoib_mcast_restart_task); INIT_DELAYED_WORK(&priv->ah_reap_task, ipoib_reap_ah); + INIT_DELAYED_WORK(&priv->neigh_reap_task, ipoib_reap_neigh); } struct ipoib_dev_priv *ipoib_intf_alloc(const char *name) @@ -1281,6 +1587,9 @@ sysfs_failed: register_failed: ib_unregister_event_handler(&priv->event_handler); + /* Stop GC if started before flush */ + set_bit(IPOIB_STOP_NEIGH_GC, &priv->flags); + cancel_delayed_work(&priv->neigh_reap_task); flush_workqueue(ipoib_workqueue); event_failed: @@ -1347,6 +1656,9 @@ static void ipoib_remove_one(struct ib_device *device) dev_change_flags(priv->dev, priv->dev->flags & ~IFF_UP); rtnl_unlock(); + /* Stop GC */ + set_bit(IPOIB_STOP_NEIGH_GC, &priv->flags); + cancel_delayed_work(&priv->neigh_reap_task); flush_workqueue(ipoib_workqueue); unregister_netdev(priv->dev); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 7cecb16..13f4aa7 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -69,28 +69,13 @@ struct ipoib_mcast_iter { static void ipoib_mcast_free(struct ipoib_mcast *mcast) { struct net_device *dev = mcast->dev; - struct ipoib_dev_priv *priv = netdev_priv(dev); - struct ipoib_neigh *neigh, *tmp; int tx_dropped = 0; ipoib_dbg_mcast(netdev_priv(dev), "deleting multicast group %pI6\n", mcast->mcmember.mgid.raw); - spin_lock_irq(&priv->lock); - - list_for_each_entry_safe(neigh, tmp, &mcast->neigh_list, list) { - /* - * It's safe to call ipoib_put_ah() inside priv->lock - * here, because we know that mcast->ah will always - * hold one more reference, so ipoib_put_ah() will - * never do more than decrement the ref count. - */ - if (neigh->ah) - ipoib_put_ah(neigh->ah); - ipoib_neigh_free(dev, neigh); - } - - spin_unlock_irq(&priv->lock); + /* remove all neigh connected to this mcast */ + ipoib_del_neighs_by_gid(dev, mcast->mcmember.mgid.raw); if (mcast->ah) ipoib_put_ah(mcast->ah); @@ -655,17 +640,12 @@ static int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast) return 0; } -void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb) +void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb) { struct ipoib_dev_priv *priv = netdev_priv(dev); - struct dst_entry *dst = skb_dst(skb); struct ipoib_mcast *mcast; - struct neighbour *n; unsigned long flags; - - n = NULL; - if (dst) - n = dst_neigh_lookup_skb(dst, skb); + void *mgid = daddr + 4; spin_lock_irqsave(&priv->lock, flags); @@ -721,28 +701,29 @@ void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb) out: if (mcast && mcast->ah) { - if (n) { - if (!*to_ipoib_neigh(n)) { - struct ipoib_neigh *neigh; - - neigh = ipoib_neigh_alloc(n, skb->dev); - if (neigh) { - kref_get(&mcast->ah->ref); - neigh->ah = mcast->ah; - list_add_tail(&neigh->list, - &mcast->neigh_list); - } + struct ipoib_neigh *neigh; + + spin_unlock_irqrestore(&priv->lock, flags); + neigh = ipoib_neigh_get(dev, daddr); + spin_lock_irqsave(&priv->lock, flags); + if (!neigh) { + spin_unlock_irqrestore(&priv->lock, flags); + neigh = ipoib_neigh_alloc(daddr, dev); + spin_lock_irqsave(&priv->lock, flags); + if (neigh) { + kref_get(&mcast->ah->ref); + neigh->ah = mcast->ah; + list_add_tail(&neigh->list, &mcast->neigh_list); } - neigh_release(n); } spin_unlock_irqrestore(&priv->lock, flags); ipoib_send(dev, skb, mcast->ah, IB_MULTICAST_QPN); + if (neigh) + ipoib_neigh_put(neigh); return; } unlock: - if (n) - neigh_release(n); spin_unlock_irqrestore(&priv->lock, flags); } diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c index 09a0899..d7a7e54 100644 --- a/drivers/input/serio/hp_sdc.c +++ b/drivers/input/serio/hp_sdc.c @@ -878,7 +878,7 @@ static int __init hp_sdc_init(void) #endif errstr = "IRQ not available for"; - if (request_irq(hp_sdc.irq, &hp_sdc_isr, IRQF_SHARED|IRQF_SAMPLE_RANDOM, + if (request_irq(hp_sdc.irq, &hp_sdc_isr, IRQF_SHARED, "HP SDC", &hp_sdc)) goto err1; diff --git a/drivers/isdn/hardware/mISDN/avmfritz.c b/drivers/isdn/hardware/mISDN/avmfritz.c index c08fc60..fa6ca47 100644 --- a/drivers/isdn/hardware/mISDN/avmfritz.c +++ b/drivers/isdn/hardware/mISDN/avmfritz.c @@ -449,7 +449,8 @@ hdlc_fill_fifo(struct bchannel *bch) { struct fritzcard *fc = bch->hw; struct hdlc_hw *hdlc; - int count, fs, cnt = 0, idx, fillempty = 0; + int count, fs, cnt = 0, idx; + bool fillempty = false; u8 *p; u32 *ptr, val, addr; @@ -462,7 +463,7 @@ hdlc_fill_fifo(struct bchannel *bch) return; count = fs; p = bch->fill; - fillempty = 1; + fillempty = true; } else { count = bch->tx_skb->len - bch->tx_idx; if (count <= 0) @@ -477,7 +478,7 @@ hdlc_fill_fifo(struct bchannel *bch) hdlc->ctrl.sr.cmd |= HDLC_CMD_XME; } ptr = (u32 *)p; - if (fillempty) { + if (!fillempty) { pr_debug("%s.B%d: %d/%d/%d", fc->name, bch->nr, count, bch->tx_idx, bch->tx_skb->len); bch->tx_idx += count; diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 1eee45b..d949b78 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -268,13 +268,14 @@ config DM_MIRROR needed for live data migration tools such as 'pvmove'. config DM_RAID - tristate "RAID 1/4/5/6 target" + tristate "RAID 1/4/5/6/10 target" depends on BLK_DEV_DM select MD_RAID1 + select MD_RAID10 select MD_RAID456 select BLK_DEV_MD ---help--- - A dm target that supports RAID1, RAID4, RAID5 and RAID6 mappings + A dm target that supports RAID1, RAID10, RAID4, RAID5 and RAID6 mappings A RAID-5 set of N drives with a capacity of C MB per drive provides the capacity of C * (N - 1) MB, and protects against a failure diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 15dbe03..94e7f6b 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1305,7 +1305,7 @@ int bitmap_startwrite(struct bitmap *bitmap, sector_t offset, unsigned long sect prepare_to_wait(&bitmap->overflow_wait, &__wait, TASK_UNINTERRUPTIBLE); spin_unlock_irq(&bitmap->counts.lock); - io_schedule(); + schedule(); finish_wait(&bitmap->overflow_wait, &__wait); continue; } diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c index 65ebaeb..627d191 100644 --- a/drivers/md/dm-log.c +++ b/drivers/md/dm-log.c @@ -571,16 +571,6 @@ static void disk_dtr(struct dm_dirty_log *log) destroy_log_context(lc); } -static int count_bits32(uint32_t *addr, unsigned size) -{ - int count = 0, i; - - for (i = 0; i < size; i++) { - count += hweight32(*(addr+i)); - } - return count; -} - static void fail_log_device(struct log_c *lc) { if (lc->log_dev_failed) @@ -629,7 +619,8 @@ static int disk_resume(struct dm_dirty_log *log) /* copy clean across to sync */ memcpy(lc->sync_bits, lc->clean_bits, size); - lc->sync_count = count_bits32(lc->clean_bits, lc->bitset_uint32_count); + lc->sync_count = memweight(lc->clean_bits, + lc->bitset_uint32_count * sizeof(uint32_t)); lc->sync_search = 0; /* set the correct number of regions in the header */ diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index f2f29c5..982e3e3 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -11,6 +11,7 @@ #include "md.h" #include "raid1.h" #include "raid5.h" +#include "raid10.h" #include "bitmap.h" #include @@ -52,7 +53,10 @@ struct raid_dev { #define DMPF_MAX_RECOVERY_RATE 0x20 #define DMPF_MAX_WRITE_BEHIND 0x40 #define DMPF_STRIPE_CACHE 0x80 -#define DMPF_REGION_SIZE 0X100 +#define DMPF_REGION_SIZE 0x100 +#define DMPF_RAID10_COPIES 0x200 +#define DMPF_RAID10_FORMAT 0x400 + struct raid_set { struct dm_target *ti; @@ -76,6 +80,7 @@ static struct raid_type { const unsigned algorithm; /* RAID algorithm. */ } raid_types[] = { {"raid1", "RAID1 (mirroring)", 0, 2, 1, 0 /* NONE */}, + {"raid10", "RAID10 (striped mirrors)", 0, 2, 10, UINT_MAX /* Varies */}, {"raid4", "RAID4 (dedicated parity disk)", 1, 2, 5, ALGORITHM_PARITY_0}, {"raid5_la", "RAID5 (left asymmetric)", 1, 2, 5, ALGORITHM_LEFT_ASYMMETRIC}, {"raid5_ra", "RAID5 (right asymmetric)", 1, 2, 5, ALGORITHM_RIGHT_ASYMMETRIC}, @@ -86,6 +91,17 @@ static struct raid_type { {"raid6_nc", "RAID6 (N continue)", 2, 4, 6, ALGORITHM_ROTATING_N_CONTINUE} }; +static unsigned raid10_md_layout_to_copies(int layout) +{ + return layout & 0xFF; +} + +static int raid10_format_to_md_layout(char *format, unsigned copies) +{ + /* 1 "far" copy, and 'copies' "near" copies */ + return (1 << 8) | (copies & 0xFF); +} + static struct raid_type *get_raid_type(char *name) { int i; @@ -339,10 +355,16 @@ static int validate_region_size(struct raid_set *rs, unsigned long region_size) * [max_write_behind ] See '-write-behind=' (man mdadm) * [stripe_cache ] Stripe cache size for higher RAIDs * [region_size ] Defines granularity of bitmap + * + * RAID10-only options: + * [raid10_copies <# copies>] Number of copies. (Default: 2) + * [raid10_format ] Layout algorithm. (Default: near) */ static int parse_raid_params(struct raid_set *rs, char **argv, unsigned num_raid_params) { + char *raid10_format = "near"; + unsigned raid10_copies = 2; unsigned i, rebuild_cnt = 0; unsigned long value, region_size = 0; sector_t sectors_per_dev = rs->ti->len; @@ -416,11 +438,28 @@ static int parse_raid_params(struct raid_set *rs, char **argv, } key = argv[i++]; + + /* Parameters that take a string value are checked here. */ + if (!strcasecmp(key, "raid10_format")) { + if (rs->raid_type->level != 10) { + rs->ti->error = "'raid10_format' is an invalid parameter for this RAID type"; + return -EINVAL; + } + if (strcmp("near", argv[i])) { + rs->ti->error = "Invalid 'raid10_format' value given"; + return -EINVAL; + } + raid10_format = argv[i]; + rs->print_flags |= DMPF_RAID10_FORMAT; + continue; + } + if (strict_strtoul(argv[i], 10, &value) < 0) { rs->ti->error = "Bad numerical argument given in raid params"; return -EINVAL; } + /* Parameters that take a numeric value are checked here */ if (!strcasecmp(key, "rebuild")) { rebuild_cnt++; @@ -439,6 +478,7 @@ static int parse_raid_params(struct raid_set *rs, char **argv, return -EINVAL; } break; + case 10: default: DMERR("The rebuild parameter is not supported for %s", rs->raid_type->name); rs->ti->error = "Rebuild not supported for this RAID type"; @@ -495,7 +535,8 @@ static int parse_raid_params(struct raid_set *rs, char **argv, */ value /= 2; - if (rs->raid_type->level < 5) { + if ((rs->raid_type->level != 5) && + (rs->raid_type->level != 6)) { rs->ti->error = "Inappropriate argument: stripe_cache"; return -EINVAL; } @@ -520,6 +561,14 @@ static int parse_raid_params(struct raid_set *rs, char **argv, } else if (!strcasecmp(key, "region_size")) { rs->print_flags |= DMPF_REGION_SIZE; region_size = value; + } else if (!strcasecmp(key, "raid10_copies") && + (rs->raid_type->level == 10)) { + if ((value < 2) || (value > 0xFF)) { + rs->ti->error = "Bad value for 'raid10_copies'"; + return -EINVAL; + } + rs->print_flags |= DMPF_RAID10_COPIES; + raid10_copies = value; } else { DMERR("Unable to parse RAID parameter: %s", key); rs->ti->error = "Unable to parse RAID parameters"; @@ -538,8 +587,22 @@ static int parse_raid_params(struct raid_set *rs, char **argv, if (dm_set_target_max_io_len(rs->ti, max_io_len)) return -EINVAL; - if ((rs->raid_type->level > 1) && - sector_div(sectors_per_dev, (rs->md.raid_disks - rs->raid_type->parity_devs))) { + if (rs->raid_type->level == 10) { + if (raid10_copies > rs->md.raid_disks) { + rs->ti->error = "Not enough devices to satisfy specification"; + return -EINVAL; + } + + /* (Len * #mirrors) / #devices */ + sectors_per_dev = rs->ti->len * raid10_copies; + sector_div(sectors_per_dev, rs->md.raid_disks); + + rs->md.layout = raid10_format_to_md_layout(raid10_format, + raid10_copies); + rs->md.new_layout = rs->md.layout; + } else if ((rs->raid_type->level > 1) && + sector_div(sectors_per_dev, + (rs->md.raid_disks - rs->raid_type->parity_devs))) { rs->ti->error = "Target length not divisible by number of data devices"; return -EINVAL; } @@ -566,6 +629,9 @@ static int raid_is_congested(struct dm_target_callbacks *cb, int bits) if (rs->raid_type->level == 1) return md_raid1_congested(&rs->md, bits); + if (rs->raid_type->level == 10) + return md_raid10_congested(&rs->md, bits); + return md_raid5_congested(&rs->md, bits); } @@ -884,6 +950,9 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs) case 6: redundancy = rs->raid_type->parity_devs; break; + case 10: + redundancy = raid10_md_layout_to_copies(mddev->layout) - 1; + break; default: ti->error = "Unknown RAID type"; return -EINVAL; @@ -1049,12 +1118,19 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv) goto bad; } + if (ti->len != rs->md.array_sectors) { + ti->error = "Array size does not match requested target length"; + ret = -EINVAL; + goto size_mismatch; + } rs->callbacks.congested_fn = raid_is_congested; dm_table_add_target_callbacks(ti->table, &rs->callbacks); mddev_suspend(&rs->md); return 0; +size_mismatch: + md_stop(&rs->md); bad: context_free(rs); @@ -1203,6 +1279,13 @@ static int raid_status(struct dm_target *ti, status_type_t type, DMEMIT(" region_size %lu", rs->md.bitmap_info.chunksize >> 9); + if (rs->print_flags & DMPF_RAID10_COPIES) + DMEMIT(" raid10_copies %u", + raid10_md_layout_to_copies(rs->md.layout)); + + if (rs->print_flags & DMPF_RAID10_FORMAT) + DMEMIT(" raid10_format near"); + DMEMIT(" %d", rs->md.raid_disks); for (i = 0; i < rs->md.raid_disks; i++) { if (rs->dev[i].meta_dev) @@ -1277,7 +1360,7 @@ static void raid_resume(struct dm_target *ti) static struct target_type raid_target = { .name = "raid", - .version = {1, 2, 0}, + .version = {1, 3, 0}, .module = THIS_MODULE, .ctr = raid_ctr, .dtr = raid_dtr, @@ -1304,6 +1387,8 @@ module_init(dm_raid_init); module_exit(dm_raid_exit); MODULE_DESCRIPTION(DM_NAME " raid4/5/6 target"); +MODULE_ALIAS("dm-raid1"); +MODULE_ALIAS("dm-raid10"); MODULE_ALIAS("dm-raid4"); MODULE_ALIAS("dm-raid5"); MODULE_ALIAS("dm-raid6"); diff --git a/drivers/md/md.c b/drivers/md/md.c index d5ab449..fcd0987 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -498,61 +498,13 @@ void md_flush_request(struct mddev *mddev, struct bio *bio) } EXPORT_SYMBOL(md_flush_request); -/* Support for plugging. - * This mirrors the plugging support in request_queue, but does not - * require having a whole queue or request structures. - * We allocate an md_plug_cb for each md device and each thread it gets - * plugged on. This links tot the private plug_handle structure in the - * personality data where we keep a count of the number of outstanding - * plugs so other code can see if a plug is active. - */ -struct md_plug_cb { - struct blk_plug_cb cb; - struct mddev *mddev; -}; - -static void plugger_unplug(struct blk_plug_cb *cb) -{ - struct md_plug_cb *mdcb = container_of(cb, struct md_plug_cb, cb); - if (atomic_dec_and_test(&mdcb->mddev->plug_cnt)) - md_wakeup_thread(mdcb->mddev->thread); - kfree(mdcb); -} - -/* Check that an unplug wakeup will come shortly. - * If not, wakeup the md thread immediately - */ -int mddev_check_plugged(struct mddev *mddev) +void md_unplug(struct blk_plug_cb *cb, bool from_schedule) { - struct blk_plug *plug = current->plug; - struct md_plug_cb *mdcb; - - if (!plug) - return 0; - - list_for_each_entry(mdcb, &plug->cb_list, cb.list) { - if (mdcb->cb.callback == plugger_unplug && - mdcb->mddev == mddev) { - /* Already on the list, move to top */ - if (mdcb != list_first_entry(&plug->cb_list, - struct md_plug_cb, - cb.list)) - list_move(&mdcb->cb.list, &plug->cb_list); - return 1; - } - } - /* Not currently on the callback list */ - mdcb = kmalloc(sizeof(*mdcb), GFP_ATOMIC); - if (!mdcb) - return 0; - - mdcb->mddev = mddev; - mdcb->cb.callback = plugger_unplug; - atomic_inc(&mddev->plug_cnt); - list_add(&mdcb->cb.list, &plug->cb_list); - return 1; + struct mddev *mddev = cb->data; + md_wakeup_thread(mddev->thread); + kfree(cb); } -EXPORT_SYMBOL_GPL(mddev_check_plugged); +EXPORT_SYMBOL(md_unplug); static inline struct mddev *mddev_get(struct mddev *mddev) { @@ -602,7 +554,6 @@ void mddev_init(struct mddev *mddev) atomic_set(&mddev->active, 1); atomic_set(&mddev->openers, 0); atomic_set(&mddev->active_io, 0); - atomic_set(&mddev->plug_cnt, 0); spin_lock_init(&mddev->write_lock); atomic_set(&mddev->flush_pending, 0); init_waitqueue_head(&mddev->sb_wait); @@ -3942,17 +3893,13 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len) break; case clear: /* stopping an active array */ - if (atomic_read(&mddev->openers) > 0) - return -EBUSY; err = do_md_stop(mddev, 0, NULL); break; case inactive: /* stopping an active array */ - if (mddev->pers) { - if (atomic_read(&mddev->openers) > 0) - return -EBUSY; + if (mddev->pers) err = do_md_stop(mddev, 2, NULL); - } else + else err = 0; /* already inactive */ break; case suspended: diff --git a/drivers/md/md.h b/drivers/md/md.h index 7b4a3c3..f385b03 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -266,9 +266,6 @@ struct mddev { int new_chunk_sectors; int reshape_backwards; - atomic_t plug_cnt; /* If device is expecting - * more bios soon. - */ struct md_thread *thread; /* management thread */ struct md_thread *sync_thread; /* doing resync or reconstruct */ sector_t curr_resync; /* last block scheduled */ @@ -630,6 +627,12 @@ extern struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask, struct mddev *mddev); extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, struct mddev *mddev); -extern int mddev_check_plugged(struct mddev *mddev); extern void md_trim_bio(struct bio *bio, int offset, int size); + +extern void md_unplug(struct blk_plug_cb *cb, bool from_schedule); +static inline int mddev_check_plugged(struct mddev *mddev) +{ + return !!blk_check_plugged(md_unplug, mddev, + sizeof(struct blk_plug_cb)); +} #endif /* _MD_MD_H */ diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index cacd008..611b5f7 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -46,6 +46,20 @@ */ #define NR_RAID1_BIOS 256 +/* when we get a read error on a read-only array, we redirect to another + * device without failing the first device, or trying to over-write to + * correct the read error. To keep track of bad blocks on a per-bio + * level, we store IO_BLOCKED in the appropriate 'bios' pointer + */ +#define IO_BLOCKED ((struct bio *)1) +/* When we successfully write to a known bad-block, we need to remove the + * bad-block marking which must be done from process context. So we record + * the success by setting devs[n].bio to IO_MADE_GOOD + */ +#define IO_MADE_GOOD ((struct bio *)2) + +#define BIO_SPECIAL(bio) ((unsigned long)bio <= 2) + /* When there are this many requests queue to be written by * the raid1 thread, we become 'congested' to provide back-pressure * for writeback. @@ -483,12 +497,14 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect const sector_t this_sector = r1_bio->sector; int sectors; int best_good_sectors; - int start_disk; - int best_disk; - int i; + int best_disk, best_dist_disk, best_pending_disk; + int has_nonrot_disk; + int disk; sector_t best_dist; + unsigned int min_pending; struct md_rdev *rdev; int choose_first; + int choose_next_idle; rcu_read_lock(); /* @@ -499,26 +515,26 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect retry: sectors = r1_bio->sectors; best_disk = -1; + best_dist_disk = -1; best_dist = MaxSector; + best_pending_disk = -1; + min_pending = UINT_MAX; best_good_sectors = 0; + has_nonrot_disk = 0; + choose_next_idle = 0; if (conf->mddev->recovery_cp < MaxSector && - (this_sector + sectors >= conf->next_resync)) { + (this_sector + sectors >= conf->next_resync)) choose_first = 1; - start_disk = 0; - } else { + else choose_first = 0; - start_disk = conf->last_used; - } - for (i = 0 ; i < conf->raid_disks * 2 ; i++) { + for (disk = 0 ; disk < conf->raid_disks * 2 ; disk++) { sector_t dist; sector_t first_bad; int bad_sectors; - - int disk = start_disk + i; - if (disk >= conf->raid_disks * 2) - disk -= conf->raid_disks * 2; + unsigned int pending; + bool nonrot; rdev = rcu_dereference(conf->mirrors[disk].rdev); if (r1_bio->bios[disk] == IO_BLOCKED @@ -577,22 +593,77 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect } else best_good_sectors = sectors; + nonrot = blk_queue_nonrot(bdev_get_queue(rdev->bdev)); + has_nonrot_disk |= nonrot; + pending = atomic_read(&rdev->nr_pending); dist = abs(this_sector - conf->mirrors[disk].head_position); - if (choose_first - /* Don't change to another disk for sequential reads */ - || conf->next_seq_sect == this_sector - || dist == 0 - /* If device is idle, use it */ - || atomic_read(&rdev->nr_pending) == 0) { + if (choose_first) { + best_disk = disk; + break; + } + /* Don't change to another disk for sequential reads */ + if (conf->mirrors[disk].next_seq_sect == this_sector + || dist == 0) { + int opt_iosize = bdev_io_opt(rdev->bdev) >> 9; + struct raid1_info *mirror = &conf->mirrors[disk]; + + best_disk = disk; + /* + * If buffered sequential IO size exceeds optimal + * iosize, check if there is idle disk. If yes, choose + * the idle disk. read_balance could already choose an + * idle disk before noticing it's a sequential IO in + * this disk. This doesn't matter because this disk + * will idle, next time it will be utilized after the + * first disk has IO size exceeds optimal iosize. In + * this way, iosize of the first disk will be optimal + * iosize at least. iosize of the second disk might be + * small, but not a big deal since when the second disk + * starts IO, the first disk is likely still busy. + */ + if (nonrot && opt_iosize > 0 && + mirror->seq_start != MaxSector && + mirror->next_seq_sect > opt_iosize && + mirror->next_seq_sect - opt_iosize >= + mirror->seq_start) { + choose_next_idle = 1; + continue; + } + break; + } + /* If device is idle, use it */ + if (pending == 0) { best_disk = disk; break; } + + if (choose_next_idle) + continue; + + if (min_pending > pending) { + min_pending = pending; + best_pending_disk = disk; + } + if (dist < best_dist) { best_dist = dist; - best_disk = disk; + best_dist_disk = disk; } } + /* + * If all disks are rotational, choose the closest disk. If any disk is + * non-rotational, choose the disk with less pending request even the + * disk is rotational, which might/might not be optimal for raids with + * mixed ratation/non-rotational disks depending on workload. + */ + if (best_disk == -1) { + if (has_nonrot_disk) + best_disk = best_pending_disk; + else + best_disk = best_dist_disk; + } + if (best_disk >= 0) { rdev = rcu_dereference(conf->mirrors[best_disk].rdev); if (!rdev) @@ -606,8 +677,11 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect goto retry; } sectors = best_good_sectors; - conf->next_seq_sect = this_sector + sectors; - conf->last_used = best_disk; + + if (conf->mirrors[best_disk].next_seq_sect != this_sector) + conf->mirrors[best_disk].seq_start = this_sector; + + conf->mirrors[best_disk].next_seq_sect = this_sector + sectors; } rcu_read_unlock(); *max_sectors = sectors; @@ -870,10 +944,48 @@ do_sync_io: pr_debug("%dB behind alloc failed, doing sync I/O\n", bio->bi_size); } +struct raid1_plug_cb { + struct blk_plug_cb cb; + struct bio_list pending; + int pending_cnt; +}; + +static void raid1_unplug(struct blk_plug_cb *cb, bool from_schedule) +{ + struct raid1_plug_cb *plug = container_of(cb, struct raid1_plug_cb, + cb); + struct mddev *mddev = plug->cb.data; + struct r1conf *conf = mddev->private; + struct bio *bio; + + if (from_schedule) { + spin_lock_irq(&conf->device_lock); + bio_list_merge(&conf->pending_bio_list, &plug->pending); + conf->pending_count += plug->pending_cnt; + spin_unlock_irq(&conf->device_lock); + md_wakeup_thread(mddev->thread); + kfree(plug); + return; + } + + /* we aren't scheduling, so we can do the write-out directly. */ + bio = bio_list_get(&plug->pending); + bitmap_unplug(mddev->bitmap); + wake_up(&conf->wait_barrier); + + while (bio) { /* submit pending writes */ + struct bio *next = bio->bi_next; + bio->bi_next = NULL; + generic_make_request(bio); + bio = next; + } + kfree(plug); +} + static void make_request(struct mddev *mddev, struct bio * bio) { struct r1conf *conf = mddev->private; - struct mirror_info *mirror; + struct raid1_info *mirror; struct r1bio *r1_bio; struct bio *read_bio; int i, disks; @@ -883,6 +995,8 @@ static void make_request(struct mddev *mddev, struct bio * bio) const unsigned long do_sync = (bio->bi_rw & REQ_SYNC); const unsigned long do_flush_fua = (bio->bi_rw & (REQ_FLUSH | REQ_FUA)); struct md_rdev *blocked_rdev; + struct blk_plug_cb *cb; + struct raid1_plug_cb *plug = NULL; int first_clone; int sectors_handled; int max_sectors; @@ -1185,11 +1299,22 @@ read_again: mbio->bi_private = r1_bio; atomic_inc(&r1_bio->remaining); + + cb = blk_check_plugged(raid1_unplug, mddev, sizeof(*plug)); + if (cb) + plug = container_of(cb, struct raid1_plug_cb, cb); + else + plug = NULL; spin_lock_irqsave(&conf->device_lock, flags); - bio_list_add(&conf->pending_bio_list, mbio); - conf->pending_count++; + if (plug) { + bio_list_add(&plug->pending, mbio); + plug->pending_cnt++; + } else { + bio_list_add(&conf->pending_bio_list, mbio); + conf->pending_count++; + } spin_unlock_irqrestore(&conf->device_lock, flags); - if (!mddev_check_plugged(mddev)) + if (!plug) md_wakeup_thread(mddev->thread); } /* Mustn't call r1_bio_write_done before this next test, @@ -1364,7 +1489,7 @@ static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev) struct r1conf *conf = mddev->private; int err = -EEXIST; int mirror = 0; - struct mirror_info *p; + struct raid1_info *p; int first = 0; int last = conf->raid_disks - 1; struct request_queue *q = bdev_get_queue(rdev->bdev); @@ -1433,7 +1558,7 @@ static int raid1_remove_disk(struct mddev *mddev, struct md_rdev *rdev) struct r1conf *conf = mddev->private; int err = 0; int number = rdev->raid_disk; - struct mirror_info *p = conf->mirrors+ number; + struct raid1_info *p = conf->mirrors + number; if (rdev != p->rdev) p = conf->mirrors + conf->raid_disks + number; @@ -2173,8 +2298,7 @@ static void raid1d(struct mddev *mddev) blk_start_plug(&plug); for (;;) { - if (atomic_read(&mddev->plug_cnt) == 0) - flush_pending_writes(conf); + flush_pending_writes(conf); spin_lock_irqsave(&conf->device_lock, flags); if (list_empty(head)) { @@ -2371,6 +2495,18 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp bio->bi_rw = READ; bio->bi_end_io = end_sync_read; read_targets++; + } else if (!test_bit(WriteErrorSeen, &rdev->flags) && + test_bit(MD_RECOVERY_SYNC, &mddev->recovery) && + !test_bit(MD_RECOVERY_CHECK, &mddev->recovery)) { + /* + * The device is suitable for reading (InSync), + * but has bad block(s) here. Let's try to correct them, + * if we are doing resync or repair. Otherwise, leave + * this device alone for this sync request. + */ + bio->bi_rw = WRITE; + bio->bi_end_io = end_sync_write; + write_targets++; } } if (bio->bi_end_io) { @@ -2428,7 +2564,10 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp /* There is nowhere to write, so all non-sync * drives must be failed - so we are finished */ - sector_t rv = max_sector - sector_nr; + sector_t rv; + if (min_bad > 0) + max_sector = sector_nr + min_bad; + rv = max_sector - sector_nr; *skipped = 1; put_buf(r1_bio); return rv; @@ -2521,7 +2660,7 @@ static struct r1conf *setup_conf(struct mddev *mddev) { struct r1conf *conf; int i; - struct mirror_info *disk; + struct raid1_info *disk; struct md_rdev *rdev; int err = -ENOMEM; @@ -2529,7 +2668,7 @@ static struct r1conf *setup_conf(struct mddev *mddev) if (!conf) goto abort; - conf->mirrors = kzalloc(sizeof(struct mirror_info) + conf->mirrors = kzalloc(sizeof(struct raid1_info) * mddev->raid_disks * 2, GFP_KERNEL); if (!conf->mirrors) @@ -2572,6 +2711,7 @@ static struct r1conf *setup_conf(struct mddev *mddev) mddev->merge_check_needed = 1; disk->head_position = 0; + disk->seq_start = MaxSector; } conf->raid_disks = mddev->raid_disks; conf->mddev = mddev; @@ -2585,7 +2725,6 @@ static struct r1conf *setup_conf(struct mddev *mddev) conf->recovery_disabled = mddev->recovery_disabled - 1; err = -EIO; - conf->last_used = -1; for (i = 0; i < conf->raid_disks * 2; i++) { disk = conf->mirrors + i; @@ -2611,19 +2750,9 @@ static struct r1conf *setup_conf(struct mddev *mddev) if (disk->rdev && (disk->rdev->saved_raid_disk < 0)) conf->fullsync = 1; - } else if (conf->last_used < 0) - /* - * The first working device is used as a - * starting point to read balancing. - */ - conf->last_used = i; + } } - if (conf->last_used < 0) { - printk(KERN_ERR "md/raid1:%s: no operational mirrors\n", - mdname(mddev)); - goto abort; - } err = -ENOMEM; conf->thread = md_register_thread(raid1d, mddev, "raid1"); if (!conf->thread) { @@ -2798,7 +2927,7 @@ static int raid1_reshape(struct mddev *mddev) */ mempool_t *newpool, *oldpool; struct pool_info *newpoolinfo; - struct mirror_info *newmirrors; + struct raid1_info *newmirrors; struct r1conf *conf = mddev->private; int cnt, raid_disks; unsigned long flags; @@ -2841,7 +2970,7 @@ static int raid1_reshape(struct mddev *mddev) kfree(newpoolinfo); return -ENOMEM; } - newmirrors = kzalloc(sizeof(struct mirror_info) * raid_disks * 2, + newmirrors = kzalloc(sizeof(struct raid1_info) * raid_disks * 2, GFP_KERNEL); if (!newmirrors) { kfree(newpoolinfo); @@ -2880,7 +3009,6 @@ static int raid1_reshape(struct mddev *mddev) conf->raid_disks = mddev->raid_disks = raid_disks; mddev->delta_disks = 0; - conf->last_used = 0; /* just make sure it is in-range */ lower_barrier(conf); set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h index 80ded13..0ff3715 100644 --- a/drivers/md/raid1.h +++ b/drivers/md/raid1.h @@ -1,9 +1,15 @@ #ifndef _RAID1_H #define _RAID1_H -struct mirror_info { +struct raid1_info { struct md_rdev *rdev; sector_t head_position; + + /* When choose the best device for a read (read_balance()) + * we try to keep sequential reads one the same device + */ + sector_t next_seq_sect; + sector_t seq_start; }; /* @@ -24,17 +30,11 @@ struct pool_info { struct r1conf { struct mddev *mddev; - struct mirror_info *mirrors; /* twice 'raid_disks' to + struct raid1_info *mirrors; /* twice 'raid_disks' to * allow for replacements. */ int raid_disks; - /* When choose the best device for a read (read_balance()) - * we try to keep sequential reads one the same device - * using 'last_used' and 'next_seq_sect' - */ - int last_used; - sector_t next_seq_sect; /* During resync, read_balancing is only allowed on the part * of the array that has been resynced. 'next_resync' tells us * where that is. @@ -135,20 +135,6 @@ struct r1bio { /* DO NOT PUT ANY NEW FIELDS HERE - bios array is contiguously alloced*/ }; -/* when we get a read error on a read-only array, we redirect to another - * device without failing the first device, or trying to over-write to - * correct the read error. To keep track of bad blocks on a per-bio - * level, we store IO_BLOCKED in the appropriate 'bios' pointer - */ -#define IO_BLOCKED ((struct bio *)1) -/* When we successfully write to a known bad-block, we need to remove the - * bad-block marking which must be done from process context. So we record - * the success by setting bios[n] to IO_MADE_GOOD - */ -#define IO_MADE_GOOD ((struct bio *)2) - -#define BIO_SPECIAL(bio) ((unsigned long)bio <= 2) - /* bits for r1bio.state */ #define R1BIO_Uptodate 0 #define R1BIO_IsSync 1 diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 8da6282..de5ed6f 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -60,7 +60,21 @@ */ #define NR_RAID10_BIOS 256 -/* When there are this many requests queue to be written by +/* when we get a read error on a read-only array, we redirect to another + * device without failing the first device, or trying to over-write to + * correct the read error. To keep track of bad blocks on a per-bio + * level, we store IO_BLOCKED in the appropriate 'bios' pointer + */ +#define IO_BLOCKED ((struct bio *)1) +/* When we successfully write to a known bad-block, we need to remove the + * bad-block marking which must be done from process context. So we record + * the success by setting devs[n].bio to IO_MADE_GOOD + */ +#define IO_MADE_GOOD ((struct bio *)2) + +#define BIO_SPECIAL(bio) ((unsigned long)bio <= 2) + +/* When there are this many requests queued to be written by * the raid10 thread, we become 'congested' to provide back-pressure * for writeback. */ @@ -717,7 +731,7 @@ static struct md_rdev *read_balance(struct r10conf *conf, int sectors = r10_bio->sectors; int best_good_sectors; sector_t new_distance, best_dist; - struct md_rdev *rdev, *best_rdev; + struct md_rdev *best_rdev, *rdev = NULL; int do_balance; int best_slot; struct geom *geo = &conf->geo; @@ -839,9 +853,8 @@ retry: return rdev; } -static int raid10_congested(void *data, int bits) +int md_raid10_congested(struct mddev *mddev, int bits) { - struct mddev *mddev = data; struct r10conf *conf = mddev->private; int i, ret = 0; @@ -849,8 +862,6 @@ static int raid10_congested(void *data, int bits) conf->pending_count >= max_queued_requests) return 1; - if (mddev_congested(mddev, bits)) - return 1; rcu_read_lock(); for (i = 0; (i < conf->geo.raid_disks || i < conf->prev.raid_disks) @@ -866,6 +877,15 @@ static int raid10_congested(void *data, int bits) rcu_read_unlock(); return ret; } +EXPORT_SYMBOL_GPL(md_raid10_congested); + +static int raid10_congested(void *data, int bits) +{ + struct mddev *mddev = data; + + return mddev_congested(mddev, bits) || + md_raid10_congested(mddev, bits); +} static void flush_pending_writes(struct r10conf *conf) { @@ -1546,7 +1566,7 @@ static void error(struct mddev *mddev, struct md_rdev *rdev) static void print_conf(struct r10conf *conf) { int i; - struct mirror_info *tmp; + struct raid10_info *tmp; printk(KERN_DEBUG "RAID10 conf printout:\n"); if (!conf) { @@ -1580,7 +1600,7 @@ static int raid10_spare_active(struct mddev *mddev) { int i; struct r10conf *conf = mddev->private; - struct mirror_info *tmp; + struct raid10_info *tmp; int count = 0; unsigned long flags; @@ -1655,7 +1675,7 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev) else mirror = first; for ( ; mirror <= last ; mirror++) { - struct mirror_info *p = &conf->mirrors[mirror]; + struct raid10_info *p = &conf->mirrors[mirror]; if (p->recovery_disabled == mddev->recovery_disabled) continue; if (p->rdev) { @@ -1709,7 +1729,7 @@ static int raid10_remove_disk(struct mddev *mddev, struct md_rdev *rdev) int err = 0; int number = rdev->raid_disk; struct md_rdev **rdevp; - struct mirror_info *p = conf->mirrors + number; + struct raid10_info *p = conf->mirrors + number; print_conf(conf); if (rdev == p->rdev) @@ -2660,8 +2680,7 @@ static void raid10d(struct mddev *mddev) blk_start_plug(&plug); for (;;) { - if (atomic_read(&mddev->plug_cnt) == 0) - flush_pending_writes(conf); + flush_pending_writes(conf); spin_lock_irqsave(&conf->device_lock, flags); if (list_empty(head)) { @@ -2876,7 +2895,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, sector_t sect; int must_sync; int any_working; - struct mirror_info *mirror = &conf->mirrors[i]; + struct raid10_info *mirror = &conf->mirrors[i]; if ((mirror->rdev == NULL || test_bit(In_sync, &mirror->rdev->flags)) @@ -3388,7 +3407,7 @@ static struct r10conf *setup_conf(struct mddev *mddev) goto out; /* FIXME calc properly */ - conf->mirrors = kzalloc(sizeof(struct mirror_info)*(mddev->raid_disks + + conf->mirrors = kzalloc(sizeof(struct raid10_info)*(mddev->raid_disks + max(0,mddev->delta_disks)), GFP_KERNEL); if (!conf->mirrors) @@ -3452,7 +3471,7 @@ static int run(struct mddev *mddev) { struct r10conf *conf; int i, disk_idx, chunk_size; - struct mirror_info *disk; + struct raid10_info *disk; struct md_rdev *rdev; sector_t size; sector_t min_offset_diff = 0; @@ -3472,12 +3491,14 @@ static int run(struct mddev *mddev) conf->thread = NULL; chunk_size = mddev->chunk_sectors << 9; - blk_queue_io_min(mddev->queue, chunk_size); - if (conf->geo.raid_disks % conf->geo.near_copies) - blk_queue_io_opt(mddev->queue, chunk_size * conf->geo.raid_disks); - else - blk_queue_io_opt(mddev->queue, chunk_size * - (conf->geo.raid_disks / conf->geo.near_copies)); + if (mddev->queue) { + blk_queue_io_min(mddev->queue, chunk_size); + if (conf->geo.raid_disks % conf->geo.near_copies) + blk_queue_io_opt(mddev->queue, chunk_size * conf->geo.raid_disks); + else + blk_queue_io_opt(mddev->queue, chunk_size * + (conf->geo.raid_disks / conf->geo.near_copies)); + } rdev_for_each(rdev, mddev) { long long diff; @@ -3511,8 +3532,9 @@ static int run(struct mddev *mddev) if (first || diff < min_offset_diff) min_offset_diff = diff; - disk_stack_limits(mddev->gendisk, rdev->bdev, - rdev->data_offset << 9); + if (mddev->gendisk) + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); disk->head_position = 0; } @@ -3575,22 +3597,22 @@ static int run(struct mddev *mddev) md_set_array_sectors(mddev, size); mddev->resync_max_sectors = size; - mddev->queue->backing_dev_info.congested_fn = raid10_congested; - mddev->queue->backing_dev_info.congested_data = mddev; - - /* Calculate max read-ahead size. - * We need to readahead at least twice a whole stripe.... - * maybe... - */ - { + if (mddev->queue) { int stripe = conf->geo.raid_disks * ((mddev->chunk_sectors << 9) / PAGE_SIZE); + mddev->queue->backing_dev_info.congested_fn = raid10_congested; + mddev->queue->backing_dev_info.congested_data = mddev; + + /* Calculate max read-ahead size. + * We need to readahead at least twice a whole stripe.... + * maybe... + */ stripe /= conf->geo.near_copies; if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe) mddev->queue->backing_dev_info.ra_pages = 2 * stripe; + blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec); } - blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec); if (md_integrity_register(mddev)) goto out_free_conf; @@ -3641,7 +3663,10 @@ static int stop(struct mddev *mddev) lower_barrier(conf); md_unregister_thread(&mddev->thread); - blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/ + if (mddev->queue) + /* the unplug fn references 'conf'*/ + blk_sync_queue(mddev->queue); + if (conf->r10bio_pool) mempool_destroy(conf->r10bio_pool); kfree(conf->mirrors); @@ -3805,7 +3830,7 @@ static int raid10_check_reshape(struct mddev *mddev) if (mddev->delta_disks > 0) { /* allocate new 'mirrors' list */ conf->mirrors_new = kzalloc( - sizeof(struct mirror_info) + sizeof(struct raid10_info) *(mddev->raid_disks + mddev->delta_disks), GFP_KERNEL); @@ -3930,7 +3955,7 @@ static int raid10_start_reshape(struct mddev *mddev) spin_lock_irq(&conf->device_lock); if (conf->mirrors_new) { memcpy(conf->mirrors_new, conf->mirrors, - sizeof(struct mirror_info)*conf->prev.raid_disks); + sizeof(struct raid10_info)*conf->prev.raid_disks); smp_mb(); kfree(conf->mirrors_old); /* FIXME and elsewhere */ conf->mirrors_old = conf->mirrors; diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h index 135b1b0..007c2c6 100644 --- a/drivers/md/raid10.h +++ b/drivers/md/raid10.h @@ -1,7 +1,7 @@ #ifndef _RAID10_H #define _RAID10_H -struct mirror_info { +struct raid10_info { struct md_rdev *rdev, *replacement; sector_t head_position; int recovery_disabled; /* matches @@ -13,8 +13,8 @@ struct mirror_info { struct r10conf { struct mddev *mddev; - struct mirror_info *mirrors; - struct mirror_info *mirrors_new, *mirrors_old; + struct raid10_info *mirrors; + struct raid10_info *mirrors_new, *mirrors_old; spinlock_t device_lock; /* geometry */ @@ -123,20 +123,6 @@ struct r10bio { } devs[0]; }; -/* when we get a read error on a read-only array, we redirect to another - * device without failing the first device, or trying to over-write to - * correct the read error. To keep track of bad blocks on a per-bio - * level, we store IO_BLOCKED in the appropriate 'bios' pointer - */ -#define IO_BLOCKED ((struct bio*)1) -/* When we successfully write to a known bad-block, we need to remove the - * bad-block marking which must be done from process context. So we record - * the success by setting devs[n].bio to IO_MADE_GOOD - */ -#define IO_MADE_GOOD ((struct bio *)2) - -#define BIO_SPECIAL(bio) ((unsigned long)bio <= 2) - /* bits for r10bio.state */ enum r10bio_state { R10BIO_Uptodate, @@ -159,4 +145,7 @@ enum r10bio_state { */ R10BIO_Previous, }; + +extern int md_raid10_congested(struct mddev *mddev, int bits); + #endif diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 04348d7..adda94d 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -99,34 +99,40 @@ static inline struct bio *r5_next_bio(struct bio *bio, sector_t sector) * We maintain a biased count of active stripes in the bottom 16 bits of * bi_phys_segments, and a count of processed stripes in the upper 16 bits */ -static inline int raid5_bi_phys_segments(struct bio *bio) +static inline int raid5_bi_processed_stripes(struct bio *bio) { - return bio->bi_phys_segments & 0xffff; + atomic_t *segments = (atomic_t *)&bio->bi_phys_segments; + return (atomic_read(segments) >> 16) & 0xffff; } -static inline int raid5_bi_hw_segments(struct bio *bio) +static inline int raid5_dec_bi_active_stripes(struct bio *bio) { - return (bio->bi_phys_segments >> 16) & 0xffff; + atomic_t *segments = (atomic_t *)&bio->bi_phys_segments; + return atomic_sub_return(1, segments) & 0xffff; } -static inline int raid5_dec_bi_phys_segments(struct bio *bio) +static inline void raid5_inc_bi_active_stripes(struct bio *bio) { - --bio->bi_phys_segments; - return raid5_bi_phys_segments(bio); + atomic_t *segments = (atomic_t *)&bio->bi_phys_segments; + atomic_inc(segments); } -static inline int raid5_dec_bi_hw_segments(struct bio *bio) +static inline void raid5_set_bi_processed_stripes(struct bio *bio, + unsigned int cnt) { - unsigned short val = raid5_bi_hw_segments(bio); + atomic_t *segments = (atomic_t *)&bio->bi_phys_segments; + int old, new; - --val; - bio->bi_phys_segments = (val << 16) | raid5_bi_phys_segments(bio); - return val; + do { + old = atomic_read(segments); + new = (old & 0xffff) | (cnt << 16); + } while (atomic_cmpxchg(segments, old, new) != old); } -static inline void raid5_set_bi_hw_segments(struct bio *bio, unsigned int cnt) +static inline void raid5_set_bi_stripes(struct bio *bio, unsigned int cnt) { - bio->bi_phys_segments = raid5_bi_phys_segments(bio) | (cnt << 16); + atomic_t *segments = (atomic_t *)&bio->bi_phys_segments; + atomic_set(segments, cnt); } /* Find first data disk in a raid6 stripe */ @@ -190,49 +196,56 @@ static int stripe_operations_active(struct stripe_head *sh) test_bit(STRIPE_COMPUTE_RUN, &sh->state); } -static void __release_stripe(struct r5conf *conf, struct stripe_head *sh) +static void do_release_stripe(struct r5conf *conf, struct stripe_head *sh) { - if (atomic_dec_and_test(&sh->count)) { - BUG_ON(!list_empty(&sh->lru)); - BUG_ON(atomic_read(&conf->active_stripes)==0); - if (test_bit(STRIPE_HANDLE, &sh->state)) { - if (test_bit(STRIPE_DELAYED, &sh->state) && - !test_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) - list_add_tail(&sh->lru, &conf->delayed_list); - else if (test_bit(STRIPE_BIT_DELAY, &sh->state) && - sh->bm_seq - conf->seq_write > 0) - list_add_tail(&sh->lru, &conf->bitmap_list); - else { - clear_bit(STRIPE_DELAYED, &sh->state); - clear_bit(STRIPE_BIT_DELAY, &sh->state); - list_add_tail(&sh->lru, &conf->handle_list); - } - md_wakeup_thread(conf->mddev->thread); - } else { - BUG_ON(stripe_operations_active(sh)); - if (test_and_clear_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) - if (atomic_dec_return(&conf->preread_active_stripes) - < IO_THRESHOLD) - md_wakeup_thread(conf->mddev->thread); - atomic_dec(&conf->active_stripes); - if (!test_bit(STRIPE_EXPANDING, &sh->state)) { - list_add_tail(&sh->lru, &conf->inactive_list); - wake_up(&conf->wait_for_stripe); - if (conf->retry_read_aligned) - md_wakeup_thread(conf->mddev->thread); - } + BUG_ON(!list_empty(&sh->lru)); + BUG_ON(atomic_read(&conf->active_stripes)==0); + if (test_bit(STRIPE_HANDLE, &sh->state)) { + if (test_bit(STRIPE_DELAYED, &sh->state) && + !test_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) + list_add_tail(&sh->lru, &conf->delayed_list); + else if (test_bit(STRIPE_BIT_DELAY, &sh->state) && + sh->bm_seq - conf->seq_write > 0) + list_add_tail(&sh->lru, &conf->bitmap_list); + else { + clear_bit(STRIPE_DELAYED, &sh->state); + clear_bit(STRIPE_BIT_DELAY, &sh->state); + list_add_tail(&sh->lru, &conf->handle_list); + } + md_wakeup_thread(conf->mddev->thread); + } else { + BUG_ON(stripe_operations_active(sh)); + if (test_and_clear_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) + if (atomic_dec_return(&conf->preread_active_stripes) + < IO_THRESHOLD) + md_wakeup_thread(conf->mddev->thread); + atomic_dec(&conf->active_stripes); + if (!test_bit(STRIPE_EXPANDING, &sh->state)) { + list_add_tail(&sh->lru, &conf->inactive_list); + wake_up(&conf->wait_for_stripe); + if (conf->retry_read_aligned) + md_wakeup_thread(conf->mddev->thread); } } } +static void __release_stripe(struct r5conf *conf, struct stripe_head *sh) +{ + if (atomic_dec_and_test(&sh->count)) + do_release_stripe(conf, sh); +} + static void release_stripe(struct stripe_head *sh) { struct r5conf *conf = sh->raid_conf; unsigned long flags; - spin_lock_irqsave(&conf->device_lock, flags); - __release_stripe(conf, sh); - spin_unlock_irqrestore(&conf->device_lock, flags); + local_irq_save(flags); + if (atomic_dec_and_lock(&sh->count, &conf->device_lock)) { + do_release_stripe(conf, sh); + spin_unlock(&conf->device_lock); + } + local_irq_restore(flags); } static inline void remove_hash(struct stripe_head *sh) @@ -471,7 +484,8 @@ get_active_stripe(struct r5conf *conf, sector_t sector, } else { if (atomic_read(&sh->count)) { BUG_ON(!list_empty(&sh->lru) - && !test_bit(STRIPE_EXPANDING, &sh->state)); + && !test_bit(STRIPE_EXPANDING, &sh->state) + && !test_bit(STRIPE_ON_UNPLUG_LIST, &sh->state)); } else { if (!test_bit(STRIPE_HANDLE, &sh->state)) atomic_inc(&conf->active_stripes); @@ -640,6 +654,9 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) else bi->bi_sector = (sh->sector + rdev->data_offset); + if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) + bi->bi_rw |= REQ_FLUSH; + bi->bi_flags = 1 << BIO_UPTODATE; bi->bi_idx = 0; bi->bi_io_vec[0].bv_len = STRIPE_SIZE; @@ -749,14 +766,12 @@ static void ops_complete_biofill(void *stripe_head_ref) { struct stripe_head *sh = stripe_head_ref; struct bio *return_bi = NULL; - struct r5conf *conf = sh->raid_conf; int i; pr_debug("%s: stripe %llu\n", __func__, (unsigned long long)sh->sector); /* clear completed biofills */ - spin_lock_irq(&conf->device_lock); for (i = sh->disks; i--; ) { struct r5dev *dev = &sh->dev[i]; @@ -774,7 +789,7 @@ static void ops_complete_biofill(void *stripe_head_ref) while (rbi && rbi->bi_sector < dev->sector + STRIPE_SECTORS) { rbi2 = r5_next_bio(rbi, dev->sector); - if (!raid5_dec_bi_phys_segments(rbi)) { + if (!raid5_dec_bi_active_stripes(rbi)) { rbi->bi_next = return_bi; return_bi = rbi; } @@ -782,7 +797,6 @@ static void ops_complete_biofill(void *stripe_head_ref) } } } - spin_unlock_irq(&conf->device_lock); clear_bit(STRIPE_BIOFILL_RUN, &sh->state); return_io(return_bi); @@ -794,7 +808,6 @@ static void ops_complete_biofill(void *stripe_head_ref) static void ops_run_biofill(struct stripe_head *sh) { struct dma_async_tx_descriptor *tx = NULL; - struct r5conf *conf = sh->raid_conf; struct async_submit_ctl submit; int i; @@ -805,10 +818,10 @@ static void ops_run_biofill(struct stripe_head *sh) struct r5dev *dev = &sh->dev[i]; if (test_bit(R5_Wantfill, &dev->flags)) { struct bio *rbi; - spin_lock_irq(&conf->device_lock); + spin_lock_irq(&sh->stripe_lock); dev->read = rbi = dev->toread; dev->toread = NULL; - spin_unlock_irq(&conf->device_lock); + spin_unlock_irq(&sh->stripe_lock); while (rbi && rbi->bi_sector < dev->sector + STRIPE_SECTORS) { tx = async_copy_data(0, rbi, dev->page, @@ -1144,12 +1157,12 @@ ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx) if (test_and_clear_bit(R5_Wantdrain, &dev->flags)) { struct bio *wbi; - spin_lock_irq(&sh->raid_conf->device_lock); + spin_lock_irq(&sh->stripe_lock); chosen = dev->towrite; dev->towrite = NULL; BUG_ON(dev->written); wbi = dev->written = chosen; - spin_unlock_irq(&sh->raid_conf->device_lock); + spin_unlock_irq(&sh->stripe_lock); while (wbi && wbi->bi_sector < dev->sector + STRIPE_SECTORS) { @@ -1454,6 +1467,8 @@ static int grow_one_stripe(struct r5conf *conf) init_waitqueue_head(&sh->ops.wait_for_ops); #endif + spin_lock_init(&sh->stripe_lock); + if (grow_buffers(sh)) { shrink_buffers(sh); kmem_cache_free(conf->slab_cache, sh); @@ -1739,7 +1754,9 @@ static void raid5_end_read_request(struct bio * bi, int error) atomic_add(STRIPE_SECTORS, &rdev->corrected_errors); clear_bit(R5_ReadError, &sh->dev[i].flags); clear_bit(R5_ReWrite, &sh->dev[i].flags); - } + } else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) + clear_bit(R5_ReadNoMerge, &sh->dev[i].flags); + if (atomic_read(&rdev->read_errors)) atomic_set(&rdev->read_errors, 0); } else { @@ -1784,7 +1801,11 @@ static void raid5_end_read_request(struct bio * bi, int error) else retry = 1; if (retry) - set_bit(R5_ReadError, &sh->dev[i].flags); + if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) { + set_bit(R5_ReadError, &sh->dev[i].flags); + clear_bit(R5_ReadNoMerge, &sh->dev[i].flags); + } else + set_bit(R5_ReadNoMerge, &sh->dev[i].flags); else { clear_bit(R5_ReadError, &sh->dev[i].flags); clear_bit(R5_ReWrite, &sh->dev[i].flags); @@ -2340,11 +2361,18 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in (unsigned long long)bi->bi_sector, (unsigned long long)sh->sector); - - spin_lock_irq(&conf->device_lock); + /* + * If several bio share a stripe. The bio bi_phys_segments acts as a + * reference count to avoid race. The reference count should already be + * increased before this function is called (for example, in + * make_request()), so other bio sharing this stripe will not free the + * stripe. If a stripe is owned by one stripe, the stripe lock will + * protect it. + */ + spin_lock_irq(&sh->stripe_lock); if (forwrite) { bip = &sh->dev[dd_idx].towrite; - if (*bip == NULL && sh->dev[dd_idx].written == NULL) + if (*bip == NULL) firstwrite = 1; } else bip = &sh->dev[dd_idx].toread; @@ -2360,7 +2388,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in if (*bip) bi->bi_next = *bip; *bip = bi; - bi->bi_phys_segments++; + raid5_inc_bi_active_stripes(bi); if (forwrite) { /* check if page is covered */ @@ -2375,7 +2403,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in if (sector >= sh->dev[dd_idx].sector + STRIPE_SECTORS) set_bit(R5_OVERWRITE, &sh->dev[dd_idx].flags); } - spin_unlock_irq(&conf->device_lock); + spin_unlock_irq(&sh->stripe_lock); pr_debug("added bi b#%llu to stripe s#%llu, disk %d.\n", (unsigned long long)(*bip)->bi_sector, @@ -2391,7 +2419,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in overlap: set_bit(R5_Overlap, &sh->dev[dd_idx].flags); - spin_unlock_irq(&conf->device_lock); + spin_unlock_irq(&sh->stripe_lock); return 0; } @@ -2441,10 +2469,11 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh, rdev_dec_pending(rdev, conf->mddev); } } - spin_lock_irq(&conf->device_lock); + spin_lock_irq(&sh->stripe_lock); /* fail all writes first */ bi = sh->dev[i].towrite; sh->dev[i].towrite = NULL; + spin_unlock_irq(&sh->stripe_lock); if (bi) { s->to_write--; bitmap_end = 1; @@ -2457,13 +2486,17 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh, sh->dev[i].sector + STRIPE_SECTORS) { struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector); clear_bit(BIO_UPTODATE, &bi->bi_flags); - if (!raid5_dec_bi_phys_segments(bi)) { + if (!raid5_dec_bi_active_stripes(bi)) { md_write_end(conf->mddev); bi->bi_next = *return_bi; *return_bi = bi; } bi = nextbi; } + if (bitmap_end) + bitmap_endwrite(conf->mddev->bitmap, sh->sector, + STRIPE_SECTORS, 0, 0); + bitmap_end = 0; /* and fail all 'written' */ bi = sh->dev[i].written; sh->dev[i].written = NULL; @@ -2472,7 +2505,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh, sh->dev[i].sector + STRIPE_SECTORS) { struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector); clear_bit(BIO_UPTODATE, &bi->bi_flags); - if (!raid5_dec_bi_phys_segments(bi)) { + if (!raid5_dec_bi_active_stripes(bi)) { md_write_end(conf->mddev); bi->bi_next = *return_bi; *return_bi = bi; @@ -2496,14 +2529,13 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh, struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector); clear_bit(BIO_UPTODATE, &bi->bi_flags); - if (!raid5_dec_bi_phys_segments(bi)) { + if (!raid5_dec_bi_active_stripes(bi)) { bi->bi_next = *return_bi; *return_bi = bi; } bi = nextbi; } } - spin_unlock_irq(&conf->device_lock); if (bitmap_end) bitmap_endwrite(conf->mddev->bitmap, sh->sector, STRIPE_SECTORS, 0, 0); @@ -2707,30 +2739,23 @@ static void handle_stripe_clean_event(struct r5conf *conf, test_bit(R5_UPTODATE, &dev->flags)) { /* We can return any write requests */ struct bio *wbi, *wbi2; - int bitmap_end = 0; pr_debug("Return write for disc %d\n", i); - spin_lock_irq(&conf->device_lock); wbi = dev->written; dev->written = NULL; while (wbi && wbi->bi_sector < dev->sector + STRIPE_SECTORS) { wbi2 = r5_next_bio(wbi, dev->sector); - if (!raid5_dec_bi_phys_segments(wbi)) { + if (!raid5_dec_bi_active_stripes(wbi)) { md_write_end(conf->mddev); wbi->bi_next = *return_bi; *return_bi = wbi; } wbi = wbi2; } - if (dev->towrite == NULL) - bitmap_end = 1; - spin_unlock_irq(&conf->device_lock); - if (bitmap_end) - bitmap_endwrite(conf->mddev->bitmap, - sh->sector, - STRIPE_SECTORS, + bitmap_endwrite(conf->mddev->bitmap, sh->sector, + STRIPE_SECTORS, !test_bit(STRIPE_DEGRADED, &sh->state), - 0); + 0); } } @@ -3182,7 +3207,6 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s) /* Now to look around and see what can be done */ rcu_read_lock(); - spin_lock_irq(&conf->device_lock); for (i=disks; i--; ) { struct md_rdev *rdev; sector_t first_bad; @@ -3328,7 +3352,6 @@ static void analyse_stripe(struct stripe_head *sh, struct stripe_head_state *s) do_recovery = 1; } } - spin_unlock_irq(&conf->device_lock); if (test_bit(STRIPE_SYNCING, &sh->state)) { /* If there is a failed device being replaced, * we must be recovering. @@ -3791,7 +3814,7 @@ static struct bio *remove_bio_from_retry(struct r5conf *conf) * this sets the active strip count to 1 and the processed * strip count to zero (upper 8 bits) */ - bi->bi_phys_segments = 1; /* biased count of active stripes */ + raid5_set_bi_stripes(bi, 1); /* biased count of active stripes */ } return bi; @@ -3988,6 +4011,62 @@ static struct stripe_head *__get_priority_stripe(struct r5conf *conf) return sh; } +struct raid5_plug_cb { + struct blk_plug_cb cb; + struct list_head list; +}; + +static void raid5_unplug(struct blk_plug_cb *blk_cb, bool from_schedule) +{ + struct raid5_plug_cb *cb = container_of( + blk_cb, struct raid5_plug_cb, cb); + struct stripe_head *sh; + struct mddev *mddev = cb->cb.data; + struct r5conf *conf = mddev->private; + + if (cb->list.next && !list_empty(&cb->list)) { + spin_lock_irq(&conf->device_lock); + while (!list_empty(&cb->list)) { + sh = list_first_entry(&cb->list, struct stripe_head, lru); + list_del_init(&sh->lru); + /* + * avoid race release_stripe_plug() sees + * STRIPE_ON_UNPLUG_LIST clear but the stripe + * is still in our list + */ + smp_mb__before_clear_bit(); + clear_bit(STRIPE_ON_UNPLUG_LIST, &sh->state); + __release_stripe(conf, sh); + } + spin_unlock_irq(&conf->device_lock); + } + kfree(cb); +} + +static void release_stripe_plug(struct mddev *mddev, + struct stripe_head *sh) +{ + struct blk_plug_cb *blk_cb = blk_check_plugged( + raid5_unplug, mddev, + sizeof(struct raid5_plug_cb)); + struct raid5_plug_cb *cb; + + if (!blk_cb) { + release_stripe(sh); + return; + } + + cb = container_of(blk_cb, struct raid5_plug_cb, cb); + + if (cb->list.next == NULL) + INIT_LIST_HEAD(&cb->list); + + if (!test_and_set_bit(STRIPE_ON_UNPLUG_LIST, &sh->state)) + list_add_tail(&sh->lru, &cb->list); + else + release_stripe(sh); +} + static void make_request(struct mddev *mddev, struct bio * bi) { struct r5conf *conf = mddev->private; @@ -4113,11 +4192,10 @@ static void make_request(struct mddev *mddev, struct bio * bi) finish_wait(&conf->wait_for_overlap, &w); set_bit(STRIPE_HANDLE, &sh->state); clear_bit(STRIPE_DELAYED, &sh->state); - if ((bi->bi_rw & REQ_SYNC) && + if ((bi->bi_rw & REQ_NOIDLE) && !test_and_set_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) atomic_inc(&conf->preread_active_stripes); - mddev_check_plugged(mddev); - release_stripe(sh); + release_stripe_plug(mddev, sh); } else { /* cannot get stripe for read-ahead, just give-up */ clear_bit(BIO_UPTODATE, &bi->bi_flags); @@ -4126,9 +4204,7 @@ static void make_request(struct mddev *mddev, struct bio * bi) } } - spin_lock_irq(&conf->device_lock); - remaining = raid5_dec_bi_phys_segments(bi); - spin_unlock_irq(&conf->device_lock); + remaining = raid5_dec_bi_active_stripes(bi); if (remaining == 0) { if ( rw == WRITE ) @@ -4484,7 +4560,7 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio) sector += STRIPE_SECTORS, scnt++) { - if (scnt < raid5_bi_hw_segments(raid_bio)) + if (scnt < raid5_bi_processed_stripes(raid_bio)) /* already done this stripe */ continue; @@ -4492,25 +4568,24 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio) if (!sh) { /* failed to get a stripe - must wait */ - raid5_set_bi_hw_segments(raid_bio, scnt); + raid5_set_bi_processed_stripes(raid_bio, scnt); conf->retry_read_aligned = raid_bio; return handled; } if (!add_stripe_bio(sh, raid_bio, dd_idx, 0)) { release_stripe(sh); - raid5_set_bi_hw_segments(raid_bio, scnt); + raid5_set_bi_processed_stripes(raid_bio, scnt); conf->retry_read_aligned = raid_bio; return handled; } + set_bit(R5_ReadNoMerge, &sh->dev[dd_idx].flags); handle_stripe(sh); release_stripe(sh); handled++; } - spin_lock_irq(&conf->device_lock); - remaining = raid5_dec_bi_phys_segments(raid_bio); - spin_unlock_irq(&conf->device_lock); + remaining = raid5_dec_bi_active_stripes(raid_bio); if (remaining == 0) bio_endio(raid_bio, 0); if (atomic_dec_and_test(&conf->active_aligned_reads)) @@ -4518,6 +4593,30 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio) return handled; } +#define MAX_STRIPE_BATCH 8 +static int handle_active_stripes(struct r5conf *conf) +{ + struct stripe_head *batch[MAX_STRIPE_BATCH], *sh; + int i, batch_size = 0; + + while (batch_size < MAX_STRIPE_BATCH && + (sh = __get_priority_stripe(conf)) != NULL) + batch[batch_size++] = sh; + + if (batch_size == 0) + return batch_size; + spin_unlock_irq(&conf->device_lock); + + for (i = 0; i < batch_size; i++) + handle_stripe(batch[i]); + + cond_resched(); + + spin_lock_irq(&conf->device_lock); + for (i = 0; i < batch_size; i++) + __release_stripe(conf, batch[i]); + return batch_size; +} /* * This is our raid5 kernel thread. @@ -4528,7 +4627,6 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio) */ static void raid5d(struct mddev *mddev) { - struct stripe_head *sh; struct r5conf *conf = mddev->private; int handled; struct blk_plug plug; @@ -4542,8 +4640,9 @@ static void raid5d(struct mddev *mddev) spin_lock_irq(&conf->device_lock); while (1) { struct bio *bio; + int batch_size; - if (atomic_read(&mddev->plug_cnt) == 0 && + if ( !list_empty(&conf->bitmap_list)) { /* Now is a good time to flush some bitmap updates */ conf->seq_flush++; @@ -4553,8 +4652,7 @@ static void raid5d(struct mddev *mddev) conf->seq_write = conf->seq_flush; activate_bit_delay(conf); } - if (atomic_read(&mddev->plug_cnt) == 0) - raid5_activate_delayed(conf); + raid5_activate_delayed(conf); while ((bio = remove_bio_from_retry(conf))) { int ok; @@ -4566,21 +4664,16 @@ static void raid5d(struct mddev *mddev) handled++; } - sh = __get_priority_stripe(conf); - - if (!sh) + batch_size = handle_active_stripes(conf); + if (!batch_size) break; - spin_unlock_irq(&conf->device_lock); - - handled++; - handle_stripe(sh); - release_stripe(sh); - cond_resched(); + handled += batch_size; - if (mddev->flags & ~(1<flags & ~(1<device_lock); md_check_recovery(mddev); - - spin_lock_irq(&conf->device_lock); + spin_lock_irq(&conf->device_lock); + } } pr_debug("%d stripes handled\n", handled); diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h index 2164021..a9fc249 100644 --- a/drivers/md/raid5.h +++ b/drivers/md/raid5.h @@ -210,6 +210,7 @@ struct stripe_head { int disks; /* disks in stripe */ enum check_states check_state; enum reconstruct_states reconstruct_state; + spinlock_t stripe_lock; /** * struct stripe_operations * @target - STRIPE_OP_COMPUTE_BLK target @@ -273,6 +274,7 @@ enum r5dev_flags { R5_Wantwrite, R5_Overlap, /* There is a pending overlapping request * on this block */ + R5_ReadNoMerge, /* prevent bio from merging in block-layer */ R5_ReadError, /* seen a read error here recently */ R5_ReWrite, /* have tried to over-write the readerror */ @@ -319,6 +321,7 @@ enum { STRIPE_BIOFILL_RUN, STRIPE_COMPUTE_RUN, STRIPE_OPS_REQ_PENDING, + STRIPE_ON_UNPLUG_LIST, }; /* diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig index 9575db4..d941581 100644 --- a/drivers/media/Kconfig +++ b/drivers/media/Kconfig @@ -6,20 +6,82 @@ menuconfig MEDIA_SUPPORT tristate "Multimedia support" depends on HAS_IOMEM help - If you want to use Video for Linux, DVB for Linux, or DAB adapters, + If you want to use Webcams, Video grabber devices and/or TV devices enable this option and other options below. + Additional info and docs are available on the web at + if MEDIA_SUPPORT comment "Multimedia core support" # +# Multimedia support - automatically enable V4L2 and DVB core +# +config MEDIA_CAMERA_SUPPORT + bool "Cameras/video grabbers support" + ---help--- + Enable support for webcams and video grabbers. + + Say Y when you have a webcam or a video capture grabber board. + +config MEDIA_ANALOG_TV_SUPPORT + bool "Analog TV support" + ---help--- + Enable analog TV support. + + Say Y when you have a TV board with analog support or with a + hybrid analog/digital TV chipset. + + Note: There are several DVB cards that are based on chips that + support both analog and digital TV. Disabling this option + will disable support for them. + +config MEDIA_DIGITAL_TV_SUPPORT + bool "Digital TV support" + ---help--- + Enable digital TV support. + + Say Y when you have a board with digital support or a board with + hybrid digital TV and analog TV. + +config MEDIA_RADIO_SUPPORT + bool "AM/FM radio receivers/transmitters support" + ---help--- + Enable AM/FM radio support. + + Additional info and docs are available on the web at + + + Say Y when you have a board with radio support. + + Note: There are several TV cards that are based on chips that + support radio reception. Disabling this option will + disable support for them. + +config MEDIA_RC_SUPPORT + bool "Remote Controller support" + depends on INPUT + ---help--- + Enable support for Remote Controllers on Linux. This is + needed in order to support several video capture adapters, + standalone IR receivers/transmitters, and RF receivers. + + Enable this option if you have a video capture board even + if you don't need IR, as otherwise, you may not be able to + compile the driver for your adapter. + + Say Y when you have a TV or an IR device. + +# # Media controller +# Selectable only for webcam/grabbers, as other drivers don't use it # config MEDIA_CONTROLLER bool "Media Controller API (EXPERIMENTAL)" depends on EXPERIMENTAL + depends on MEDIA_CAMERA_SUPPORT ---help--- Enable the media controller API used to query media devices internal topology and configure it dynamically. @@ -27,26 +89,15 @@ config MEDIA_CONTROLLER This API is mostly used by camera interfaces in embedded platforms. # -# V4L core and enabled API's +# Video4Linux support +# Only enables if one of the V4L2 types (ATV, webcam, radio) is selected # config VIDEO_DEV - tristate "Video For Linux" - ---help--- - V4L core support for video capture and overlay devices, webcams and - AM/FM radio cards. - - This kernel includes support for the new Video for Linux Two API, - (V4L2). - - Additional info and docs are available on the web at - - - Documentation for V4L2 is also available on the web at - . - - To compile this driver as a module, choose M here: the - module will be called videodev. + tristate + depends on MEDIA_SUPPORT + depends on MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_RADIO_SUPPORT + default y config VIDEO_V4L2_COMMON tristate @@ -64,25 +115,15 @@ config VIDEO_V4L2_SUBDEV_API # # DVB Core +# Only enables if one of DTV is selected # config DVB_CORE - tristate "DVB for Linux" + tristate + depends on MEDIA_SUPPORT + depends on MEDIA_DIGITAL_TV_SUPPORT + default y select CRC32 - help - DVB core utility functions for device handling, software fallbacks etc. - - Enable this if you own a DVB/ATSC adapter and want to use it or if - you compile Linux for a digital SetTopBox. - - Say Y when you have a DVB or an ATSC card and want to use it. - - API specs and user tools are available from . - - Please report problems regarding this support to the LinuxDVB - mailing list. - - If unsure say N. config DVB_NET bool "DVB Network Support" @@ -97,12 +138,7 @@ config DVB_NET You may want to disable the network support on embedded devices. If unsure say Y. -config VIDEO_MEDIA - tristate - default (DVB_CORE && (VIDEO_DEV = n)) || (VIDEO_DEV && (DVB_CORE = n)) || (DVB_CORE && VIDEO_DEV) - -comment "Multimedia drivers" - +comment "Media drivers" source "drivers/media/common/Kconfig" source "drivers/media/rc/Kconfig" diff --git a/drivers/media/common/tuners/Kconfig b/drivers/media/common/tuners/Kconfig index bbf4945..94c6ff7 100644 --- a/drivers/media/common/tuners/Kconfig +++ b/drivers/media/common/tuners/Kconfig @@ -1,7 +1,8 @@ config MEDIA_ATTACH bool "Load and attach frontend and tuner driver modules as needed" - depends on VIDEO_MEDIA + depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT depends on MODULES + default y if !EXPERT help Remove the static dependency of DVB card drivers on all frontend modules for all possible card variants. Instead, @@ -19,15 +20,15 @@ config MEDIA_ATTACH config MEDIA_TUNER tristate - default VIDEO_MEDIA && I2C - depends on VIDEO_MEDIA && I2C + depends on (MEDIA_ANALOG_TV_SUPPORT || MEDIA_RADIO_SUPPORT) && I2C + default y select MEDIA_TUNER_XC2028 if !MEDIA_TUNER_CUSTOMISE select MEDIA_TUNER_XC5000 if !MEDIA_TUNER_CUSTOMISE select MEDIA_TUNER_XC4000 if !MEDIA_TUNER_CUSTOMISE select MEDIA_TUNER_MT20XX if !MEDIA_TUNER_CUSTOMISE select MEDIA_TUNER_TDA8290 if !MEDIA_TUNER_CUSTOMISE - select MEDIA_TUNER_TEA5761 if !MEDIA_TUNER_CUSTOMISE && EXPERIMENTAL - select MEDIA_TUNER_TEA5767 if !MEDIA_TUNER_CUSTOMISE + select MEDIA_TUNER_TEA5761 if !MEDIA_TUNER_CUSTOMISE && MEDIA_RADIO_SUPPORT && EXPERIMENTAL + select MEDIA_TUNER_TEA5767 if !MEDIA_TUNER_CUSTOMISE && MEDIA_RADIO_SUPPORT select MEDIA_TUNER_SIMPLE if !MEDIA_TUNER_CUSTOMISE select MEDIA_TUNER_TDA9887 if !MEDIA_TUNER_CUSTOMISE select MEDIA_TUNER_MC44S803 if !MEDIA_TUNER_CUSTOMISE @@ -47,10 +48,11 @@ config MEDIA_TUNER_CUSTOMISE menu "Customize TV tuners" visible if MEDIA_TUNER_CUSTOMISE + depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT config MEDIA_TUNER_SIMPLE tristate "Simple tuner support" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C select MEDIA_TUNER_TDA9887 default m if MEDIA_TUNER_CUSTOMISE help @@ -58,7 +60,7 @@ config MEDIA_TUNER_SIMPLE config MEDIA_TUNER_TDA8290 tristate "TDA 8290/8295 + 8275(a)/18271 tuner combo" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C select MEDIA_TUNER_TDA827X select MEDIA_TUNER_TDA18271 default m if MEDIA_TUNER_CUSTOMISE @@ -67,21 +69,21 @@ config MEDIA_TUNER_TDA8290 config MEDIA_TUNER_TDA827X tristate "Philips TDA827X silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A DVB-T silicon tuner module. Say Y when you want to support this tuner. config MEDIA_TUNER_TDA18271 tristate "NXP TDA18271 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A silicon tuner module. Say Y when you want to support this tuner. config MEDIA_TUNER_TDA9887 tristate "TDA 9885/6/7 analog IF demodulator" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Say Y here to include support for Philips TDA9885/6/7 @@ -89,7 +91,7 @@ config MEDIA_TUNER_TDA9887 config MEDIA_TUNER_TEA5761 tristate "TEA 5761 radio tuner (EXPERIMENTAL)" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C depends on EXPERIMENTAL default m if MEDIA_TUNER_CUSTOMISE help @@ -97,63 +99,63 @@ config MEDIA_TUNER_TEA5761 config MEDIA_TUNER_TEA5767 tristate "TEA 5767 radio tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Say Y here to include support for the Philips TEA5767 radio tuner. config MEDIA_TUNER_MT20XX tristate "Microtune 2032 / 2050 tuners" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Say Y here to include support for the MT2032 / MT2050 tuner. config MEDIA_TUNER_MT2060 tristate "Microtune MT2060 silicon IF tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon IF tuner MT2060 from Microtune. config MEDIA_TUNER_MT2063 tristate "Microtune MT2063 silicon IF tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon IF tuner MT2063 from Microtune. config MEDIA_TUNER_MT2266 tristate "Microtune MT2266 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon baseband tuner MT2266 from Microtune. config MEDIA_TUNER_MT2131 tristate "Microtune MT2131 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon baseband tuner MT2131 from Microtune. config MEDIA_TUNER_QT1010 tristate "Quantek QT1010 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon tuner QT1010 from Quantek. config MEDIA_TUNER_XC2028 tristate "XCeive xc2028/xc3028 tuners" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Say Y here to include support for the xc2028/xc3028 tuners. config MEDIA_TUNER_XC5000 tristate "Xceive XC5000 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon tuner XC5000 from Xceive. @@ -162,7 +164,7 @@ config MEDIA_TUNER_XC5000 config MEDIA_TUNER_XC4000 tristate "Xceive XC4000 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon tuner XC4000 from Xceive. @@ -171,70 +173,70 @@ config MEDIA_TUNER_XC4000 config MEDIA_TUNER_MXL5005S tristate "MaxLinear MSL5005S silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon tuner MXL5005S from MaxLinear. config MEDIA_TUNER_MXL5007T tristate "MaxLinear MxL5007T silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon tuner MxL5007T from MaxLinear. config MEDIA_TUNER_MC44S803 tristate "Freescale MC44S803 Low Power CMOS Broadband tuners" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Say Y here to support the Freescale MC44S803 based tuners config MEDIA_TUNER_MAX2165 tristate "Maxim MAX2165 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help A driver for the silicon tuner MAX2165 from Maxim. config MEDIA_TUNER_TDA18218 tristate "NXP TDA18218 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help NXP TDA18218 silicon tuner driver. config MEDIA_TUNER_FC0011 tristate "Fitipower FC0011 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Fitipower FC0011 silicon tuner driver. config MEDIA_TUNER_FC0012 tristate "Fitipower FC0012 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Fitipower FC0012 silicon tuner driver. config MEDIA_TUNER_FC0013 tristate "Fitipower FC0013 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Fitipower FC0013 silicon tuner driver. config MEDIA_TUNER_TDA18212 tristate "NXP TDA18212 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help NXP TDA18212 silicon tuner driver. config MEDIA_TUNER_TUA9001 tristate "Infineon TUA 9001 silicon tuner" - depends on VIDEO_MEDIA && I2C + depends on MEDIA_SUPPORT && I2C default m if MEDIA_TUNER_CUSTOMISE help Infineon TUA 9001 silicon tuner driver. diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c index b5ee3eb..ea0550e 100644 --- a/drivers/media/common/tuners/tuner-xc2028.c +++ b/drivers/media/common/tuners/tuner-xc2028.c @@ -90,11 +90,22 @@ struct firmware_properties { int scode_nr; }; +enum xc2028_state { + XC2028_NO_FIRMWARE = 0, + XC2028_WAITING_FIRMWARE, + XC2028_ACTIVE, + XC2028_SLEEP, + XC2028_NODEV, +}; + struct xc2028_data { struct list_head hybrid_tuner_instance_list; struct tuner_i2c_props i2c_props; __u32 frequency; + enum xc2028_state state; + const char *fname; + struct firmware_description *firm; int firm_size; __u16 firm_version; @@ -255,6 +266,21 @@ static v4l2_std_id parse_audio_std_option(void) return 0; } +static int check_device_status(struct xc2028_data *priv) +{ + switch (priv->state) { + case XC2028_NO_FIRMWARE: + case XC2028_WAITING_FIRMWARE: + return -EAGAIN; + case XC2028_ACTIVE: + case XC2028_SLEEP: + return 0; + case XC2028_NODEV: + return -ENODEV; + } + return 0; +} + static void free_firmware(struct xc2028_data *priv) { int i; @@ -270,45 +296,28 @@ static void free_firmware(struct xc2028_data *priv) priv->firm = NULL; priv->firm_size = 0; + priv->state = XC2028_NO_FIRMWARE; memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); } -static int load_all_firmwares(struct dvb_frontend *fe) +static int load_all_firmwares(struct dvb_frontend *fe, + const struct firmware *fw) { struct xc2028_data *priv = fe->tuner_priv; - const struct firmware *fw = NULL; const unsigned char *p, *endp; int rc = 0; int n, n_array; char name[33]; - char *fname; tuner_dbg("%s called\n", __func__); - if (!firmware_name[0]) - fname = priv->ctrl.fname; - else - fname = firmware_name; - - tuner_dbg("Reading firmware %s\n", fname); - rc = request_firmware(&fw, fname, priv->i2c_props.adap->dev.parent); - if (rc < 0) { - if (rc == -ENOENT) - tuner_err("Error: firmware %s not found.\n", - fname); - else - tuner_err("Error %d while requesting firmware %s \n", - rc, fname); - - return rc; - } p = fw->data; endp = p + fw->size; if (fw->size < sizeof(name) - 1 + 2 + 2) { tuner_err("Error: firmware file %s has invalid size!\n", - fname); + priv->fname); goto corrupt; } @@ -323,7 +332,7 @@ static int load_all_firmwares(struct dvb_frontend *fe) p += 2; tuner_info("Loading %d firmware images from %s, type: %s, ver %d.%d\n", - n_array, fname, name, + n_array, priv->fname, name, priv->firm_version >> 8, priv->firm_version & 0xff); priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL); @@ -417,9 +426,10 @@ err: free_firmware(priv); done: - release_firmware(fw); if (rc == 0) tuner_dbg("Firmware files loaded.\n"); + else + priv->state = XC2028_NODEV; return rc; } @@ -707,22 +717,15 @@ static int check_firmware(struct dvb_frontend *fe, unsigned int type, { struct xc2028_data *priv = fe->tuner_priv; struct firmware_properties new_fw; - int rc = 0, retry_count = 0; + int rc, retry_count = 0; u16 version, hwmodel; v4l2_std_id std0; tuner_dbg("%s called\n", __func__); - if (!priv->firm) { - if (!priv->ctrl.fname) { - tuner_info("xc2028/3028 firmware name not set!\n"); - return -EINVAL; - } - - rc = load_all_firmwares(fe); - if (rc < 0) - return rc; - } + rc = check_device_status(priv); + if (rc < 0) + return rc; if (priv->ctrl.mts && !(type & FM)) type |= MTS; @@ -749,9 +752,13 @@ retry: printk("scode_nr %d\n", new_fw.scode_nr); } - /* No need to reload base firmware if it matches */ - if (((BASE | new_fw.type) & BASE_TYPES) == - (priv->cur_fw.type & BASE_TYPES)) { + /* + * No need to reload base firmware if it matches and if the tuner + * is not at sleep mode + */ + if ((priv->state == XC2028_ACTIVE) && + (((BASE | new_fw.type) & BASE_TYPES) == + (priv->cur_fw.type & BASE_TYPES))) { tuner_dbg("BASE firmware not changed.\n"); goto skip_base; } @@ -872,10 +879,13 @@ read_not_reliable: * 2. Tell whether BASE firmware was just changed the next time through. */ priv->cur_fw.type |= BASE; + priv->state = XC2028_ACTIVE; return 0; fail: + priv->state = XC2028_SLEEP; + memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); if (retry_count < 8) { msleep(50); @@ -893,28 +903,39 @@ static int xc2028_signal(struct dvb_frontend *fe, u16 *strength) { struct xc2028_data *priv = fe->tuner_priv; u16 frq_lock, signal = 0; - int rc; + int rc, i; tuner_dbg("%s called\n", __func__); + rc = check_device_status(priv); + if (rc < 0) + return rc; + mutex_lock(&priv->lock); /* Sync Lock Indicator */ - rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock); - if (rc < 0) - goto ret; + for (i = 0; i < 3; i++) { + rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock); + if (rc < 0) + goto ret; - /* Frequency is locked */ - if (frq_lock == 1) - signal = 1 << 11; + if (frq_lock) + break; + msleep(6); + } + + /* Frequency didn't lock */ + if (frq_lock == 2) + goto ret; /* Get SNR of the video signal */ rc = xc2028_get_reg(priv, XREG_SNR, &signal); if (rc < 0) goto ret; - /* Use both frq_lock and signal to generate the result */ - signal = signal || ((signal & 0x07) << 12); + /* Signal level is 3 bits only */ + + signal = ((1 << 12) - 1) | ((signal & 0x07) << 12); ret: mutex_unlock(&priv->lock); @@ -926,6 +947,49 @@ ret: return rc; } +static int xc2028_get_afc(struct dvb_frontend *fe, s32 *afc) +{ + struct xc2028_data *priv = fe->tuner_priv; + int i, rc; + u16 frq_lock = 0; + s16 afc_reg = 0; + + rc = check_device_status(priv); + if (rc < 0) + return rc; + + mutex_lock(&priv->lock); + + /* Sync Lock Indicator */ + for (i = 0; i < 3; i++) { + rc = xc2028_get_reg(priv, XREG_LOCK, &frq_lock); + if (rc < 0) + goto ret; + + if (frq_lock) + break; + msleep(6); + } + + /* Frequency didn't lock */ + if (frq_lock == 2) + goto ret; + + /* Get AFC */ + rc = xc2028_get_reg(priv, XREG_FREQ_ERROR, &afc_reg); + if (rc < 0) + goto ret; + + *afc = afc_reg * 15625; /* Hz */ + + tuner_dbg("AFC is %d Hz\n", *afc); + +ret: + mutex_unlock(&priv->lock); + + return rc; +} + #define DIV 15625 static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */, @@ -1111,11 +1175,16 @@ static int xc2028_set_params(struct dvb_frontend *fe) u32 delsys = c->delivery_system; u32 bw = c->bandwidth_hz; struct xc2028_data *priv = fe->tuner_priv; - unsigned int type=0; + int rc; + unsigned int type = 0; u16 demod = 0; tuner_dbg("%s called\n", __func__); + rc = check_device_status(priv); + if (rc < 0) + return rc; + switch (delsys) { case SYS_DVBT: case SYS_DVBT2: @@ -1201,7 +1270,11 @@ static int xc2028_set_params(struct dvb_frontend *fe) static int xc2028_sleep(struct dvb_frontend *fe) { struct xc2028_data *priv = fe->tuner_priv; - int rc = 0; + int rc; + + rc = check_device_status(priv); + if (rc < 0) + return rc; /* Avoid firmware reload on slow devices or if PM disabled */ if (no_poweroff || priv->ctrl.disable_power_mgmt) @@ -1220,7 +1293,7 @@ static int xc2028_sleep(struct dvb_frontend *fe) else rc = send_seq(priv, {0x80, XREG_POWER_DOWN, 0x00, 0x00}); - priv->cur_fw.type = 0; /* need firmware reload */ + priv->state = XC2028_SLEEP; mutex_unlock(&priv->lock); @@ -1237,8 +1310,9 @@ static int xc2028_dvb_release(struct dvb_frontend *fe) /* only perform final cleanup if this is the last instance */ if (hybrid_tuner_report_instance_count(priv) == 1) { - kfree(priv->ctrl.fname); free_firmware(priv); + kfree(priv->ctrl.fname); + priv->ctrl.fname = NULL; } if (priv) @@ -1254,14 +1328,42 @@ static int xc2028_dvb_release(struct dvb_frontend *fe) static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency) { struct xc2028_data *priv = fe->tuner_priv; + int rc; tuner_dbg("%s called\n", __func__); + rc = check_device_status(priv); + if (rc < 0) + return rc; + *frequency = priv->frequency; return 0; } +static void load_firmware_cb(const struct firmware *fw, + void *context) +{ + struct dvb_frontend *fe = context; + struct xc2028_data *priv = fe->tuner_priv; + int rc; + + tuner_dbg("request_firmware_nowait(): %s\n", fw ? "OK" : "error"); + if (!fw) { + tuner_err("Could not load firmware %s.\n", priv->fname); + priv->state = XC2028_NODEV; + return; + } + + rc = load_all_firmwares(fe, fw); + + release_firmware(fw); + + if (rc < 0) + return; + priv->state = XC2028_SLEEP; +} + static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg) { struct xc2028_data *priv = fe->tuner_priv; @@ -1272,21 +1374,49 @@ static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg) mutex_lock(&priv->lock); + /* + * Copy the config data. + * For the firmware name, keep a local copy of the string, + * in order to avoid troubles during device release. + */ + if (priv->ctrl.fname) + kfree(priv->ctrl.fname); memcpy(&priv->ctrl, p, sizeof(priv->ctrl)); - if (priv->ctrl.max_len < 9) - priv->ctrl.max_len = 13; - if (p->fname) { - if (priv->ctrl.fname && strcmp(p->fname, priv->ctrl.fname)) { - kfree(priv->ctrl.fname); - free_firmware(priv); - } - priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL); if (priv->ctrl.fname == NULL) rc = -ENOMEM; } + /* + * If firmware name changed, frees firmware. As free_firmware will + * reset the status to NO_FIRMWARE, this forces a new request_firmware + */ + if (!firmware_name[0] && p->fname && + priv->fname && strcmp(p->fname, priv->fname)) + free_firmware(priv); + + if (priv->ctrl.max_len < 9) + priv->ctrl.max_len = 13; + + if (priv->state == XC2028_NO_FIRMWARE) { + if (!firmware_name[0]) + priv->fname = priv->ctrl.fname; + else + priv->fname = firmware_name; + + rc = request_firmware_nowait(THIS_MODULE, 1, + priv->fname, + priv->i2c_props.adap->dev.parent, + GFP_KERNEL, + fe, load_firmware_cb); + if (rc < 0) { + tuner_err("Failed to request firmware %s\n", + priv->fname); + priv->state = XC2028_NODEV; + } + priv->state = XC2028_WAITING_FIRMWARE; + } mutex_unlock(&priv->lock); return rc; @@ -1305,6 +1435,7 @@ static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = { .release = xc2028_dvb_release, .get_frequency = xc2028_get_frequency, .get_rf_strength = xc2028_signal, + .get_afc = xc2028_get_afc, .set_params = xc2028_set_params, .sleep = xc2028_sleep, }; @@ -1375,3 +1506,5 @@ MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver"); MODULE_AUTHOR("Michel Ludwig "); MODULE_AUTHOR("Mauro Carvalho Chehab "); MODULE_LICENSE("GPL"); +MODULE_FIRMWARE(XC2028_DEFAULT_FIRMWARE); +MODULE_FIRMWARE(XC3028L_DEFAULT_FIRMWARE); diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c index dcca42c..362a8d7 100644 --- a/drivers/media/common/tuners/xc5000.c +++ b/drivers/media/common/tuners/xc5000.c @@ -210,13 +210,15 @@ struct xc5000_fw_cfg { u16 size; }; +#define XC5000A_FIRMWARE "dvb-fe-xc5000-1.6.114.fw" static const struct xc5000_fw_cfg xc5000a_1_6_114 = { - .name = "dvb-fe-xc5000-1.6.114.fw", + .name = XC5000A_FIRMWARE, .size = 12401, }; +#define XC5000C_FIRMWARE "dvb-fe-xc5000c-41.024.5.fw" static const struct xc5000_fw_cfg xc5000c_41_024_5 = { - .name = "dvb-fe-xc5000c-41.024.5.fw", + .name = XC5000C_FIRMWARE, .size = 16497, }; @@ -717,6 +719,12 @@ static int xc5000_set_params(struct dvb_frontend *fe) priv->freq_hz = freq - 1750000; priv->video_standard = DTV6; break; + case SYS_ISDBT: + /* All ISDB-T are currently for 6 MHz bw */ + if (!bw) + bw = 6000000; + /* fall to OFDM handling */ + case SYS_DMBTH: case SYS_DVBT: case SYS_DVBT2: dprintk(1, "%s() OFDM\n", __func__); @@ -1253,3 +1261,5 @@ EXPORT_SYMBOL(xc5000_attach); MODULE_AUTHOR("Steven Toth"); MODULE_DESCRIPTION("Xceive xc5000 silicon tuner driver"); MODULE_LICENSE("GPL"); +MODULE_FIRMWARE(XC5000A_FIRMWARE); +MODULE_FIRMWARE(XC5000C_FIRMWARE); diff --git a/drivers/media/dvb/ddbridge/ddbridge-core.c b/drivers/media/dvb/ddbridge/ddbridge-core.c index 131b938..ebf3f05 100644 --- a/drivers/media/dvb/ddbridge/ddbridge-core.c +++ b/drivers/media/dvb/ddbridge/ddbridge-core.c @@ -578,6 +578,7 @@ static int demod_attach_drxk(struct ddb_input *input) memset(&config, 0, sizeof(config)); config.microcode_name = "drxk_a3.mc"; + config.qam_demod_parameter_count = 4; config.adr = 0x29 + (input->nr & 1); fe = input->fe = dvb_attach(drxk_attach, &config, i2c); diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.h b/drivers/media/dvb/dvb-core/dvb_frontend.h index e929d56..7c64c09 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb/dvb-core/dvb_frontend.h @@ -220,6 +220,7 @@ struct dvb_tuner_ops { #define TUNER_STATUS_STEREO 2 int (*get_status)(struct dvb_frontend *fe, u32 *status); int (*get_rf_strength)(struct dvb_frontend *fe, u16 *strength); + int (*get_afc)(struct dvb_frontend *fe, s32 *afc); /** These are provided separately from set_params in order to facilitate silicon * tuners which require sophisticated tuning loops, controlling each parameter separately. */ diff --git a/drivers/media/dvb/dvb-usb/Kconfig b/drivers/media/dvb/dvb-usb/Kconfig index a269493..c216156 100644 --- a/drivers/media/dvb/dvb-usb/Kconfig +++ b/drivers/media/dvb/dvb-usb/Kconfig @@ -418,9 +418,12 @@ config DVB_USB_RTL28XXU tristate "Realtek RTL28xxU DVB USB support" depends on DVB_USB && EXPERIMENTAL select DVB_RTL2830 + select DVB_RTL2832 select MEDIA_TUNER_QT1010 if !MEDIA_TUNER_CUSTOMISE select MEDIA_TUNER_MT2060 if !MEDIA_TUNER_CUSTOMISE select MEDIA_TUNER_MXL5005S if !MEDIA_TUNER_CUSTOMISE + select MEDIA_TUNER_FC0012 if !MEDIA_TUNER_CUSTOMISE + select MEDIA_TUNER_FC0013 if !MEDIA_TUNER_CUSTOMISE help Say Y here to support the Realtek RTL28xxU DVB USB receiver. diff --git a/drivers/media/dvb/dvb-usb/az6007.c b/drivers/media/dvb/dvb-usb/az6007.c index 4008b9c..86861e6 100644 --- a/drivers/media/dvb/dvb-usb/az6007.c +++ b/drivers/media/dvb/dvb-usb/az6007.c @@ -590,12 +590,10 @@ static int az6007_read_mac_addr(struct dvb_usb_device *d, u8 mac[6]) int ret; ret = az6007_read(d, AZ6007_READ_DATA, 6, 0, st->data, 6); - memcpy(mac, st->data, sizeof(mac)); + memcpy(mac, st->data, 6); if (ret > 0) - deb_info("%s: mac is %02x:%02x:%02x:%02x:%02x:%02x\n", - __func__, mac[0], mac[1], mac[2], - mac[3], mac[4], mac[5]); + deb_info("%s: mac is %pM\n", __func__, mac); return ret; } diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h index 7a6160b..26c4481 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h +++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h @@ -100,6 +100,7 @@ #define USB_PID_CONCEPTRONIC_CTVDIGRCU 0xe397 #define USB_PID_CONEXANT_D680_DMB 0x86d6 #define USB_PID_CREATIX_CTX1921 0x1921 +#define USB_PID_DELOCK_USB2_DVBT 0xb803 #define USB_PID_DIBCOM_HOOK_DEFAULT 0x0064 #define USB_PID_DIBCOM_HOOK_DEFAULT_REENUM 0x0065 #define USB_PID_DIBCOM_MOD3000_COLD 0x0bb8 @@ -160,6 +161,7 @@ #define USB_PID_TERRATEC_CINERGY_T_STICK 0x0093 #define USB_PID_TERRATEC_CINERGY_T_STICK_RC 0x0097 #define USB_PID_TERRATEC_CINERGY_T_STICK_DUAL_RC 0x0099 +#define USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1 0x00a9 #define USB_PID_TWINHAN_VP7041_COLD 0x3201 #define USB_PID_TWINHAN_VP7041_WARM 0x3202 #define USB_PID_TWINHAN_VP7020_COLD 0x3203 @@ -245,6 +247,7 @@ #define USB_PID_TERRATEC_H7_2 0x10a3 #define USB_PID_TERRATEC_T3 0x10a0 #define USB_PID_TERRATEC_T5 0x10a1 +#define USB_PID_NOXON_DAB_STICK 0x00b3 #define USB_PID_PINNACLE_EXPRESSCARD_320CX 0x022e #define USB_PID_PINNACLE_PCTV2000E 0x022c #define USB_PID_PINNACLE_PCTV_DVB_T_FLASH 0x0228 diff --git a/drivers/media/dvb/dvb-usb/rtl28xxu.c b/drivers/media/dvb/dvb-usb/rtl28xxu.c index 41e1f55..6bd0bd7 100644 --- a/drivers/media/dvb/dvb-usb/rtl28xxu.c +++ b/drivers/media/dvb/dvb-usb/rtl28xxu.c @@ -3,6 +3,7 @@ * * Copyright (C) 2009 Antti Palosaari * Copyright (C) 2011 Antti Palosaari + * Copyright (C) 2012 Thomas Mair * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -22,10 +23,13 @@ #include "rtl28xxu.h" #include "rtl2830.h" +#include "rtl2832.h" #include "qt1010.h" #include "mt2060.h" #include "mxl5005s.h" +#include "fc0012.h" +#include "fc0013.h" /* debug */ static int dvb_usb_rtl28xxu_debug; @@ -80,7 +84,7 @@ err: return ret; } -static int rtl2831_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len) +static int rtl28xx_wr_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len) { struct rtl28xxu_req req; @@ -116,12 +120,12 @@ static int rtl2831_rd_regs(struct dvb_usb_device *d, u16 reg, u8 *val, int len) return rtl28xxu_ctrl_msg(d, &req); } -static int rtl2831_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val) +static int rtl28xx_wr_reg(struct dvb_usb_device *d, u16 reg, u8 val) { - return rtl2831_wr_regs(d, reg, &val, 1); + return rtl28xx_wr_regs(d, reg, &val, 1); } -static int rtl2831_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val) +static int rtl28xx_rd_reg(struct dvb_usb_device *d, u16 reg, u8 *val) { return rtl2831_rd_regs(d, reg, val, 1); } @@ -308,12 +312,12 @@ static int rtl2831u_frontend_attach(struct dvb_usb_adapter *adap) */ /* GPIO direction */ - ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_DIR, 0x0a); + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_DIR, 0x0a); if (ret) goto err; /* enable as output GPIO0, GPIO2, GPIO4 */ - ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_EN, 0x15); + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_OUT_EN, 0x15); if (ret) goto err; @@ -381,34 +385,159 @@ err: return ret; } +static struct rtl2832_config rtl28xxu_rtl2832_fc0012_config = { + .i2c_addr = 0x10, /* 0x20 */ + .xtal = 28800000, + .if_dvbt = 0, + .tuner = TUNER_RTL2832_FC0012 +}; + +static struct rtl2832_config rtl28xxu_rtl2832_fc0013_config = { + .i2c_addr = 0x10, /* 0x20 */ + .xtal = 28800000, + .if_dvbt = 0, + .tuner = TUNER_RTL2832_FC0013 +}; + +static int rtl2832u_fc0012_tuner_callback(struct dvb_usb_device *d, + int cmd, int arg) +{ + int ret; + u8 val; + + deb_info("%s cmd=%d arg=%d\n", __func__, cmd, arg); + switch (cmd) { + case FC_FE_CALLBACK_VHF_ENABLE: + /* set output values */ + ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &val); + if (ret) + goto err; + + if (arg) + val &= 0xbf; /* set GPIO6 low */ + else + val |= 0x40; /* set GPIO6 high */ + + + ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val); + if (ret) + goto err; + break; + default: + ret = -EINVAL; + goto err; + } + return 0; + +err: + err("%s: failed=%d\n", __func__, ret); + + return ret; +} + + +static int rtl2832u_fc0013_tuner_callback(struct dvb_usb_device *d, + int cmd, int arg) +{ + /* TODO implement*/ + return 0; +} + +static int rtl2832u_tuner_callback(struct dvb_usb_device *d, int cmd, int arg) +{ + struct rtl28xxu_priv *priv = d->priv; + + switch (priv->tuner) { + case TUNER_RTL2832_FC0012: + return rtl2832u_fc0012_tuner_callback(d, cmd, arg); + + case TUNER_RTL2832_FC0013: + return rtl2832u_fc0013_tuner_callback(d, cmd, arg); + default: + break; + } + + return -ENODEV; +} + +static int rtl2832u_frontend_callback(void *adapter_priv, int component, + int cmd, int arg) +{ + struct i2c_adapter *adap = adapter_priv; + struct dvb_usb_device *d = i2c_get_adapdata(adap); + + switch (component) { + case DVB_FRONTEND_COMPONENT_TUNER: + return rtl2832u_tuner_callback(d, cmd, arg); + default: + break; + } + + return -EINVAL; +} + + + + static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap) { int ret; struct rtl28xxu_priv *priv = adap->dev->priv; - u8 buf[1]; + struct rtl2832_config *rtl2832_config; + + u8 buf[2], val; /* open RTL2832U/RTL2832 I2C gate */ struct rtl28xxu_req req_gate_open = {0x0120, 0x0011, 0x0001, "\x18"}; /* close RTL2832U/RTL2832 I2C gate */ struct rtl28xxu_req req_gate_close = {0x0120, 0x0011, 0x0001, "\x10"}; + /* for FC0012 tuner probe */ + struct rtl28xxu_req req_fc0012 = {0x00c6, CMD_I2C_RD, 1, buf}; + /* for FC0013 tuner probe */ + struct rtl28xxu_req req_fc0013 = {0x00c6, CMD_I2C_RD, 1, buf}; + /* for MT2266 tuner probe */ + struct rtl28xxu_req req_mt2266 = {0x00c0, CMD_I2C_RD, 1, buf}; /* for FC2580 tuner probe */ struct rtl28xxu_req req_fc2580 = {0x01ac, CMD_I2C_RD, 1, buf}; + /* for MT2063 tuner probe */ + struct rtl28xxu_req req_mt2063 = {0x00c0, CMD_I2C_RD, 1, buf}; + /* for MAX3543 tuner probe */ + struct rtl28xxu_req req_max3543 = {0x00c0, CMD_I2C_RD, 1, buf}; + /* for TUA9001 tuner probe */ + struct rtl28xxu_req req_tua9001 = {0x7ec0, CMD_I2C_RD, 2, buf}; + /* for MXL5007T tuner probe */ + struct rtl28xxu_req req_mxl5007t = {0xd9c0, CMD_I2C_RD, 1, buf}; + /* for E4000 tuner probe */ + struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf}; + /* for TDA18272 tuner probe */ + struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf}; deb_info("%s:\n", __func__); - /* GPIO direction */ - ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_DIR, 0x0a); + + ret = rtl28xx_rd_reg(adap->dev, SYS_GPIO_DIR, &val); if (ret) goto err; - /* enable as output GPIO0, GPIO2, GPIO4 */ - ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_EN, 0x15); + val &= 0xbf; + + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_DIR, val); if (ret) goto err; - ret = rtl2831_wr_reg(adap->dev, SYS_DEMOD_CTL, 0xe8); + + /* enable as output GPIO3 and GPIO6*/ + ret = rtl28xx_rd_reg(adap->dev, SYS_GPIO_OUT_EN, &val); if (ret) goto err; + val |= 0x48; + + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_OUT_EN, val); + if (ret) + goto err; + + + /* * Probe used tuner. We need to know used tuner before demod attach * since there is some demod params needed to set according to tuner. @@ -419,25 +548,108 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap) if (ret) goto err; + priv->tuner = TUNER_NONE; + + /* check FC0012 ID register; reg=00 val=a1 */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_fc0012); + if (ret == 0 && buf[0] == 0xa1) { + priv->tuner = TUNER_RTL2832_FC0012; + rtl2832_config = &rtl28xxu_rtl2832_fc0012_config; + info("%s: FC0012 tuner found", __func__); + goto found; + } + + /* check FC0013 ID register; reg=00 val=a3 */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_fc0013); + if (ret == 0 && buf[0] == 0xa3) { + priv->tuner = TUNER_RTL2832_FC0013; + rtl2832_config = &rtl28xxu_rtl2832_fc0013_config; + info("%s: FC0013 tuner found", __func__); + goto found; + } + + /* check MT2266 ID register; reg=00 val=85 */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_mt2266); + if (ret == 0 && buf[0] == 0x85) { + priv->tuner = TUNER_RTL2832_MT2266; + /* TODO implement tuner */ + info("%s: MT2266 tuner found", __func__); + goto unsupported; + } + /* check FC2580 ID register; reg=01 val=56 */ ret = rtl28xxu_ctrl_msg(adap->dev, &req_fc2580); if (ret == 0 && buf[0] == 0x56) { priv->tuner = TUNER_RTL2832_FC2580; - deb_info("%s: FC2580\n", __func__); - goto found; - } else { - deb_info("%s: FC2580 probe failed=%d - %02x\n", - __func__, ret, buf[0]); + /* TODO implement tuner */ + info("%s: FC2580 tuner found", __func__); + goto unsupported; } + /* check MT2063 ID register; reg=00 val=9e || 9c */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_mt2063); + if (ret == 0 && (buf[0] == 0x9e || buf[0] == 0x9c)) { + priv->tuner = TUNER_RTL2832_MT2063; + /* TODO implement tuner */ + info("%s: MT2063 tuner found", __func__); + goto unsupported; + } + + /* check MAX3543 ID register; reg=00 val=38 */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_max3543); + if (ret == 0 && buf[0] == 0x38) { + priv->tuner = TUNER_RTL2832_MAX3543; + /* TODO implement tuner */ + info("%s: MAX3534 tuner found", __func__); + goto unsupported; + } + + /* check TUA9001 ID register; reg=7e val=2328 */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_tua9001); + if (ret == 0 && buf[0] == 0x23 && buf[1] == 0x28) { + priv->tuner = TUNER_RTL2832_TUA9001; + /* TODO implement tuner */ + info("%s: TUA9001 tuner found", __func__); + goto unsupported; + } + + /* check MXL5007R ID register; reg=d9 val=14 */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_mxl5007t); + if (ret == 0 && buf[0] == 0x14) { + priv->tuner = TUNER_RTL2832_MXL5007T; + /* TODO implement tuner */ + info("%s: MXL5007T tuner found", __func__); + goto unsupported; + } + + /* check E4000 ID register; reg=02 val=40 */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_e4000); + if (ret == 0 && buf[0] == 0x40) { + priv->tuner = TUNER_RTL2832_E4000; + /* TODO implement tuner */ + info("%s: E4000 tuner found", __func__); + goto unsupported; + } + + /* check TDA18272 ID register; reg=00 val=c760 */ + ret = rtl28xxu_ctrl_msg(adap->dev, &req_tda18272); + if (ret == 0 && (buf[0] == 0xc7 || buf[1] == 0x60)) { + priv->tuner = TUNER_RTL2832_TDA18272; + /* TODO implement tuner */ + info("%s: TDA18272 tuner found", __func__); + goto unsupported; + } + +unsupported: /* close demod I2C gate */ ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_close); if (ret) goto err; /* tuner not found */ + deb_info("No compatible tuner found"); ret = -ENODEV; - goto err; + return ret; found: /* close demod I2C gate */ @@ -446,9 +658,18 @@ found: goto err; /* attach demodulator */ - /* TODO: */ + adap->fe_adap[0].fe = dvb_attach(rtl2832_attach, rtl2832_config, + &adap->dev->i2c_adap); + if (adap->fe_adap[0].fe == NULL) { + ret = -ENODEV; + goto err; + } + + /* set fe callbacks */ + adap->fe_adap[0].fe->callback = rtl2832u_frontend_callback; return ret; + err: deb_info("%s: failed=%d\n", __func__, ret); return ret; @@ -531,10 +752,24 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap) deb_info("%s:\n", __func__); switch (priv->tuner) { - case TUNER_RTL2832_FC2580: - /* TODO: */ - fe = NULL; + case TUNER_RTL2832_FC0012: + fe = dvb_attach(fc0012_attach, adap->fe_adap[0].fe, + &adap->dev->i2c_adap, 0xc6>>1, 0, FC_XTAL_28_8_MHZ); + + /* since fc0012 includs reading the signal strength delegate + * that to the tuner driver */ + adap->fe_adap[0].fe->ops.read_signal_strength = adap->fe_adap[0]. + fe->ops.tuner_ops.get_rf_strength; + return 0; break; + case TUNER_RTL2832_FC0013: + fe = dvb_attach(fc0013_attach, adap->fe_adap[0].fe, + &adap->dev->i2c_adap, 0xc6>>1, 0, FC_XTAL_28_8_MHZ); + + /* fc0013 also supports signal strength reading */ + adap->fe_adap[0].fe->ops.read_signal_strength = adap->fe_adap[0] + .fe->ops.tuner_ops.get_rf_strength; + return 0; default: fe = NULL; err("unknown tuner=%d", priv->tuner); @@ -551,14 +786,14 @@ err: return ret; } -static int rtl28xxu_streaming_ctrl(struct dvb_usb_adapter *adap , int onoff) +static int rtl2831u_streaming_ctrl(struct dvb_usb_adapter *adap , int onoff) { int ret; u8 buf[2], gpio; deb_info("%s: onoff=%d\n", __func__, onoff); - ret = rtl2831_rd_reg(adap->dev, SYS_GPIO_OUT_VAL, &gpio); + ret = rtl28xx_rd_reg(adap->dev, SYS_GPIO_OUT_VAL, &gpio); if (ret) goto err; @@ -572,11 +807,37 @@ static int rtl28xxu_streaming_ctrl(struct dvb_usb_adapter *adap , int onoff) gpio &= (~0x04); /* LED off */ } - ret = rtl2831_wr_reg(adap->dev, SYS_GPIO_OUT_VAL, gpio); + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_OUT_VAL, gpio); if (ret) goto err; - ret = rtl2831_wr_regs(adap->dev, USB_EPA_CTL, buf, 2); + ret = rtl28xx_wr_regs(adap->dev, USB_EPA_CTL, buf, 2); + if (ret) + goto err; + + return ret; +err: + deb_info("%s: failed=%d\n", __func__, ret); + return ret; +} + +static int rtl2832u_streaming_ctrl(struct dvb_usb_adapter *adap , int onoff) +{ + int ret; + u8 buf[2]; + + deb_info("%s: onoff=%d\n", __func__, onoff); + + + if (onoff) { + buf[0] = 0x00; + buf[1] = 0x00; + } else { + buf[0] = 0x10; /* stall EPA */ + buf[1] = 0x02; /* reset EPA */ + } + + ret = rtl28xx_wr_regs(adap->dev, USB_EPA_CTL, buf, 2); if (ret) goto err; @@ -586,7 +847,7 @@ err: return ret; } -static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff) +static int rtl2831u_power_ctrl(struct dvb_usb_device *d, int onoff) { int ret; u8 gpio, sys0; @@ -594,12 +855,12 @@ static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff) deb_info("%s: onoff=%d\n", __func__, onoff); /* demod adc */ - ret = rtl2831_rd_reg(d, SYS_SYS0, &sys0); + ret = rtl28xx_rd_reg(d, SYS_SYS0, &sys0); if (ret) goto err; /* tuner power, read GPIOs */ - ret = rtl2831_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio); + ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &gpio); if (ret) goto err; @@ -619,12 +880,12 @@ static int rtl28xxu_power_ctrl(struct dvb_usb_device *d, int onoff) deb_info("%s: WR SYS0=%02x GPIO_OUT_VAL=%02x\n", __func__, sys0, gpio); /* demod adc */ - ret = rtl2831_wr_reg(d, SYS_SYS0, sys0); + ret = rtl28xx_wr_reg(d, SYS_SYS0, sys0); if (ret) goto err; /* tuner power, write GPIOs */ - ret = rtl2831_wr_reg(d, SYS_GPIO_OUT_VAL, gpio); + ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, gpio); if (ret) goto err; @@ -634,6 +895,128 @@ err: return ret; } +static int rtl2832u_power_ctrl(struct dvb_usb_device *d, int onoff) +{ + int ret; + u8 val; + + deb_info("%s: onoff=%d\n", __func__, onoff); + + if (onoff) { + /* set output values */ + ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &val); + if (ret) + goto err; + + val |= 0x08; + val &= 0xef; + + ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val); + if (ret) + goto err; + + /* demod_ctl_1 */ + ret = rtl28xx_rd_reg(d, SYS_DEMOD_CTL1, &val); + if (ret) + goto err; + + val &= 0xef; + + ret = rtl28xx_wr_reg(d, SYS_DEMOD_CTL1, val); + if (ret) + goto err; + + /* demod control */ + /* PLL enable */ + ret = rtl28xx_rd_reg(d, SYS_DEMOD_CTL, &val); + if (ret) + goto err; + + /* bit 7 to 1 */ + val |= 0x80; + + ret = rtl28xx_wr_reg(d, SYS_DEMOD_CTL, val); + if (ret) + goto err; + + /* demod HW reset */ + ret = rtl28xx_rd_reg(d, SYS_DEMOD_CTL, &val); + if (ret) + goto err; + /* bit 5 to 0 */ + val &= 0xdf; + + ret = rtl28xx_wr_reg(d, SYS_DEMOD_CTL, val); + if (ret) + goto err; + + ret = rtl28xx_rd_reg(d, SYS_DEMOD_CTL, &val); + if (ret) + goto err; + + val |= 0x20; + + ret = rtl28xx_wr_reg(d, SYS_DEMOD_CTL, val); + if (ret) + goto err; + + mdelay(5); + + /*enable ADC_Q and ADC_I */ + ret = rtl28xx_rd_reg(d, SYS_DEMOD_CTL, &val); + if (ret) + goto err; + + val |= 0x48; + + ret = rtl28xx_wr_reg(d, SYS_DEMOD_CTL, val); + if (ret) + goto err; + + + } else { + /* demod_ctl_1 */ + ret = rtl28xx_rd_reg(d, SYS_DEMOD_CTL1, &val); + if (ret) + goto err; + + val |= 0x0c; + + ret = rtl28xx_wr_reg(d, SYS_DEMOD_CTL1, val); + if (ret) + goto err; + + /* set output values */ + ret = rtl28xx_rd_reg(d, SYS_GPIO_OUT_VAL, &val); + if (ret) + goto err; + + val |= 0x10; + + ret = rtl28xx_wr_reg(d, SYS_GPIO_OUT_VAL, val); + if (ret) + goto err; + + /* demod control */ + ret = rtl28xx_rd_reg(d, SYS_DEMOD_CTL, &val); + if (ret) + goto err; + + val &= 0x37; + + ret = rtl28xx_wr_reg(d, SYS_DEMOD_CTL, val); + if (ret) + goto err; + + } + + return ret; +err: + deb_info("%s: failed=%d\n", __func__, ret); + return ret; +} + + static int rtl2831u_rc_query(struct dvb_usb_device *d) { int ret, i; @@ -660,7 +1043,7 @@ static int rtl2831u_rc_query(struct dvb_usb_device *d) /* init remote controller */ if (!priv->rc_active) { for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) { - ret = rtl2831_wr_reg(d, rc_nec_tab[i].reg, + ret = rtl28xx_wr_reg(d, rc_nec_tab[i].reg, rc_nec_tab[i].val); if (ret) goto err; @@ -690,12 +1073,12 @@ static int rtl2831u_rc_query(struct dvb_usb_device *d) rc_keydown(d->rc_dev, rc_code, 0); - ret = rtl2831_wr_reg(d, SYS_IRRC_SR, 1); + ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1); if (ret) goto err; /* repeated intentionally to avoid extra keypress */ - ret = rtl2831_wr_reg(d, SYS_IRRC_SR, 1); + ret = rtl28xx_wr_reg(d, SYS_IRRC_SR, 1); if (ret) goto err; } @@ -732,7 +1115,7 @@ static int rtl2832u_rc_query(struct dvb_usb_device *d) /* init remote controller */ if (!priv->rc_active) { for (i = 0; i < ARRAY_SIZE(rc_nec_tab); i++) { - ret = rtl2831_wr_reg(d, rc_nec_tab[i].reg, + ret = rtl28xx_wr_reg(d, rc_nec_tab[i].reg, rc_nec_tab[i].val); if (ret) goto err; @@ -740,14 +1123,14 @@ static int rtl2832u_rc_query(struct dvb_usb_device *d) priv->rc_active = true; } - ret = rtl2831_rd_reg(d, IR_RX_IF, &buf[0]); + ret = rtl28xx_rd_reg(d, IR_RX_IF, &buf[0]); if (ret) goto err; if (buf[0] != 0x83) goto exit; - ret = rtl2831_rd_reg(d, IR_RX_BC, &buf[0]); + ret = rtl28xx_rd_reg(d, IR_RX_BC, &buf[0]); if (ret) goto err; @@ -756,9 +1139,9 @@ static int rtl2832u_rc_query(struct dvb_usb_device *d) /* TODO: pass raw IR to Kernel IR decoder */ - ret = rtl2831_wr_reg(d, IR_RX_IF, 0x03); - ret = rtl2831_wr_reg(d, IR_RX_BUF_CTRL, 0x80); - ret = rtl2831_wr_reg(d, IR_RX_CTRL, 0x80); + ret = rtl28xx_wr_reg(d, IR_RX_IF, 0x03); + ret = rtl28xx_wr_reg(d, IR_RX_BUF_CTRL, 0x80); + ret = rtl28xx_wr_reg(d, IR_RX_CTRL, 0x80); exit: return ret; @@ -771,6 +1154,9 @@ enum rtl28xxu_usb_table_entry { RTL2831U_0BDA_2831, RTL2831U_14AA_0160, RTL2831U_14AA_0161, + RTL2832U_0CCD_00A9, + RTL2832U_1F4D_B803, + RTL2832U_0CCD_00B3, }; static struct usb_device_id rtl28xxu_table[] = { @@ -783,6 +1169,12 @@ static struct usb_device_id rtl28xxu_table[] = { USB_DEVICE(USB_VID_WIDEVIEW, USB_PID_FREECOM_DVBT_2)}, /* RTL2832U */ + [RTL2832U_0CCD_00A9] = { + USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_CINERGY_T_STICK_BLACK_REV1)}, + [RTL2832U_1F4D_B803] = { + USB_DEVICE(USB_VID_GTEK, USB_PID_DELOCK_USB2_DVBT)}, + [RTL2832U_0CCD_00B3] = { + USB_DEVICE(USB_VID_TERRATEC, USB_PID_NOXON_DAB_STICK)}, {} /* terminating entry */ }; @@ -805,7 +1197,7 @@ static struct dvb_usb_device_properties rtl28xxu_properties[] = { { .frontend_attach = rtl2831u_frontend_attach, .tuner_attach = rtl2831u_tuner_attach, - .streaming_ctrl = rtl28xxu_streaming_ctrl, + .streaming_ctrl = rtl2831u_streaming_ctrl, .stream = { .type = USB_BULK, .count = 6, @@ -821,7 +1213,7 @@ static struct dvb_usb_device_properties rtl28xxu_properties[] = { } }, - .power_ctrl = rtl28xxu_power_ctrl, + .power_ctrl = rtl2831u_power_ctrl, .rc.core = { .protocol = RC_TYPE_NEC, @@ -867,7 +1259,7 @@ static struct dvb_usb_device_properties rtl28xxu_properties[] = { { .frontend_attach = rtl2832u_frontend_attach, .tuner_attach = rtl2832u_tuner_attach, - .streaming_ctrl = rtl28xxu_streaming_ctrl, + .streaming_ctrl = rtl2832u_streaming_ctrl, .stream = { .type = USB_BULK, .count = 6, @@ -883,7 +1275,7 @@ static struct dvb_usb_device_properties rtl28xxu_properties[] = { } }, - .power_ctrl = rtl28xxu_power_ctrl, + .power_ctrl = rtl2832u_power_ctrl, .rc.core = { .protocol = RC_TYPE_NEC, @@ -896,10 +1288,25 @@ static struct dvb_usb_device_properties rtl28xxu_properties[] = { .i2c_algo = &rtl28xxu_i2c_algo, - .num_device_descs = 0, /* disabled as no support for RTL2832 */ + .num_device_descs = 3, .devices = { { - .name = "Realtek RTL2832U reference design", + .name = "Terratec Cinergy T Stick Black", + .warm_ids = { + &rtl28xxu_table[RTL2832U_0CCD_00A9], + }, + }, + { + .name = "G-Tek Electronics Group Lifeview LV5TDLX DVB-T", + .warm_ids = { + &rtl28xxu_table[RTL2832U_1F4D_B803], + }, + }, + { + .name = "NOXON DAB/DAB+ USB dongle", + .warm_ids = { + &rtl28xxu_table[RTL2832U_0CCD_00B3], + }, }, } }, @@ -910,6 +1317,7 @@ static int rtl28xxu_probe(struct usb_interface *intf, const struct usb_device_id *id) { int ret, i; + u8 val; int properties_count = ARRAY_SIZE(rtl28xxu_properties); struct dvb_usb_device *d; struct usb_device *udev; @@ -954,16 +1362,25 @@ static int rtl28xxu_probe(struct usb_interface *intf, if (ret) goto err; + /* init USB endpoints */ - ret = rtl2831_wr_reg(d, USB_SYSCTL_0, 0x09); + ret = rtl28xx_rd_reg(d, USB_SYSCTL_0, &val); + if (ret) + goto err; + + /* enable DMA and Full Packet Mode*/ + val |= 0x09; + ret = rtl28xx_wr_reg(d, USB_SYSCTL_0, val); if (ret) goto err; - ret = rtl2831_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4); + /* set EPA maximum packet size to 0x0200 */ + ret = rtl28xx_wr_regs(d, USB_EPA_MAXPKT, "\x00\x02\x00\x00", 4); if (ret) goto err; - ret = rtl2831_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4); + /* change EPA FIFO length */ + ret = rtl28xx_wr_regs(d, USB_EPA_FIFO_CFG, "\x14\x00\x00\x00", 4); if (ret) goto err; @@ -1007,4 +1424,5 @@ module_exit(rtl28xxu_module_exit); MODULE_DESCRIPTION("Realtek RTL28xxU DVB USB driver"); MODULE_AUTHOR("Antti Palosaari "); +MODULE_AUTHOR("Thomas Mair "); MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index b98ebb2..a08c215 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig @@ -1,6 +1,7 @@ config DVB_FE_CUSTOMISE bool "Customise the frontend modules to build" depends on DVB_CORE + depends on EXPERT default y if EXPERT help This allows the user to select/deselect frontend drivers for their @@ -432,6 +433,13 @@ config DVB_RTL2830 help Say Y when you want to support this frontend. +config DVB_RTL2832 + tristate "Realtek RTL2832 DVB-T" + depends on DVB_CORE && I2C + default m if DVB_FE_CUSTOMISE + help + Say Y when you want to support this frontend. + comment "DVB-C (cable) frontends" depends on DVB_CORE diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index cd1ac2f..185bb8b 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -99,6 +99,7 @@ obj-$(CONFIG_DVB_IT913X_FE) += it913x-fe.o obj-$(CONFIG_DVB_A8293) += a8293.o obj-$(CONFIG_DVB_TDA10071) += tda10071.o obj-$(CONFIG_DVB_RTL2830) += rtl2830.o +obj-$(CONFIG_DVB_RTL2832) += rtl2832.o obj-$(CONFIG_DVB_M88RS2000) += m88rs2000.o obj-$(CONFIG_DVB_AF9033) += af9033.o diff --git a/drivers/media/dvb/frontends/a8293.c b/drivers/media/dvb/frontends/a8293.c index bb56497..cff44a3 100644 --- a/drivers/media/dvb/frontends/a8293.c +++ b/drivers/media/dvb/frontends/a8293.c @@ -21,24 +21,6 @@ #include "dvb_frontend.h" #include "a8293.h" -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); - -#define LOG_PREFIX "a8293" - -#undef dbg -#define dbg(f, arg...) \ - if (debug) \ - printk(KERN_INFO LOG_PREFIX": " f "\n" , ## arg) -#undef err -#define err(f, arg...) printk(KERN_ERR LOG_PREFIX": " f "\n" , ## arg) -#undef info -#define info(f, arg...) printk(KERN_INFO LOG_PREFIX": " f "\n" , ## arg) -#undef warn -#define warn(f, arg...) printk(KERN_WARNING LOG_PREFIX": " f "\n" , ## arg) - - struct a8293_priv { struct i2c_adapter *i2c; const struct a8293_config *cfg; @@ -65,7 +47,8 @@ static int a8293_i2c(struct a8293_priv *priv, u8 *val, int len, bool rd) if (ret == 1) { ret = 0; } else { - warn("i2c failed=%d rd=%d", ret, rd); + dev_warn(&priv->i2c->dev, "%s: i2c failed=%d rd=%d\n", + KBUILD_MODNAME, ret, rd); ret = -EREMOTEIO; } @@ -88,7 +71,8 @@ static int a8293_set_voltage(struct dvb_frontend *fe, struct a8293_priv *priv = fe->sec_priv; int ret; - dbg("%s: fe_sec_voltage=%d", __func__, fe_sec_voltage); + dev_dbg(&priv->i2c->dev, "%s: fe_sec_voltage=%d\n", __func__, + fe_sec_voltage); switch (fe_sec_voltage) { case SEC_VOLTAGE_OFF: @@ -114,14 +98,12 @@ static int a8293_set_voltage(struct dvb_frontend *fe, return ret; err: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } static void a8293_release_sec(struct dvb_frontend *fe) { - dbg("%s:", __func__); - a8293_set_voltage(fe, SEC_VOLTAGE_OFF); kfree(fe->sec_priv); @@ -154,7 +136,7 @@ struct dvb_frontend *a8293_attach(struct dvb_frontend *fe, /* ENB=0 */ priv->reg[0] = 0x10; - ret = a8293_wr(priv, &priv->reg[1], 1); + ret = a8293_wr(priv, &priv->reg[0], 1); if (ret) goto err; @@ -164,16 +146,17 @@ struct dvb_frontend *a8293_attach(struct dvb_frontend *fe, if (ret) goto err; - info("Allegro A8293 SEC attached."); - fe->ops.release_sec = a8293_release_sec; /* override frontend ops */ fe->ops.set_voltage = a8293_set_voltage; + dev_info(&priv->i2c->dev, "%s: Allegro A8293 SEC attached\n", + KBUILD_MODNAME); + return fe; err: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret); kfree(priv); return NULL; } diff --git a/drivers/media/dvb/frontends/dib8000.c b/drivers/media/dvb/frontends/dib8000.c index 9ca34f4..1f3bcb5 100644 --- a/drivers/media/dvb/frontends/dib8000.c +++ b/drivers/media/dvb/frontends/dib8000.c @@ -2680,12 +2680,14 @@ static int dib8000_tune(struct dvb_frontend *fe) { struct dib8000_state *state = fe->demodulator_priv; int ret = 0; - u16 lock, value, mode = fft_to_mode(state); + u16 lock, value, mode; // we are already tuned - just resuming from suspend if (state == NULL) return -EINVAL; + mode = fft_to_mode(state); + dib8000_set_bandwidth(fe, state->fe[0]->dtv_property_cache.bandwidth_hz / 1000); dib8000_set_channel(state, 0, 0); diff --git a/drivers/media/dvb/frontends/drxk.h b/drivers/media/dvb/frontends/drxk.h index 9d64e4f..d615d7d 100644 --- a/drivers/media/dvb/frontends/drxk.h +++ b/drivers/media/dvb/frontends/drxk.h @@ -20,6 +20,14 @@ * means that 1=DVBC, 0 = DVBT. Zero means the opposite. * @mpeg_out_clk_strength: DRXK Mpeg output clock drive strength. * @microcode_name: Name of the firmware file with the microcode + * @qam_demod_parameter_count: The number of parameters used for the command + * to set the demodulator parameters. All + * firmwares are using the 2-parameter commmand. + * An exception is the "drxk_a3.mc" firmware, + * which uses the 4-parameter command. + * A value of 0 (default) or lower indicates that + * the correct number of parameters will be + * automatically detected. * * On the *_gpio vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is * UIO-3. @@ -38,7 +46,8 @@ struct drxk_config { u8 mpeg_out_clk_strength; int chunk_size; - const char *microcode_name; + const char *microcode_name; + int qam_demod_parameter_count; }; #if defined(CONFIG_DVB_DRXK) || (defined(CONFIG_DVB_DRXK_MODULE) \ diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c index 60b868f..1ab8154 100644 --- a/drivers/media/dvb/frontends/drxk_hard.c +++ b/drivers/media/dvb/frontends/drxk_hard.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include "dvb_frontend.h" @@ -308,16 +309,42 @@ static u32 Log10Times100(u32 x) /* I2C **********************************************************************/ /****************************************************************************/ -static int i2c_read1(struct i2c_adapter *adapter, u8 adr, u8 *val) +static int drxk_i2c_lock(struct drxk_state *state) +{ + i2c_lock_adapter(state->i2c); + state->drxk_i2c_exclusive_lock = true; + + return 0; +} + +static void drxk_i2c_unlock(struct drxk_state *state) +{ + if (!state->drxk_i2c_exclusive_lock) + return; + + i2c_unlock_adapter(state->i2c); + state->drxk_i2c_exclusive_lock = false; +} + +static int drxk_i2c_transfer(struct drxk_state *state, struct i2c_msg *msgs, + unsigned len) +{ + if (state->drxk_i2c_exclusive_lock) + return __i2c_transfer(state->i2c, msgs, len); + else + return i2c_transfer(state->i2c, msgs, len); +} + +static int i2c_read1(struct drxk_state *state, u8 adr, u8 *val) { struct i2c_msg msgs[1] = { {.addr = adr, .flags = I2C_M_RD, .buf = val, .len = 1} }; - return i2c_transfer(adapter, msgs, 1); + return drxk_i2c_transfer(state, msgs, 1); } -static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len) +static int i2c_write(struct drxk_state *state, u8 adr, u8 *data, int len) { int status; struct i2c_msg msg = { @@ -330,7 +357,7 @@ static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len) printk(KERN_CONT " %02x", data[i]); printk(KERN_CONT "\n"); } - status = i2c_transfer(adap, &msg, 1); + status = drxk_i2c_transfer(state, &msg, 1); if (status >= 0 && status != 1) status = -EIO; @@ -340,7 +367,7 @@ static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len) return status; } -static int i2c_read(struct i2c_adapter *adap, +static int i2c_read(struct drxk_state *state, u8 adr, u8 *msg, int len, u8 *answ, int alen) { int status; @@ -351,7 +378,7 @@ static int i2c_read(struct i2c_adapter *adap, .buf = answ, .len = alen} }; - status = i2c_transfer(adap, msgs, 2); + status = drxk_i2c_transfer(state, msgs, 2); if (status != 2) { if (debug > 2) printk(KERN_CONT ": ERROR!\n"); @@ -394,7 +421,7 @@ static int read16_flags(struct drxk_state *state, u32 reg, u16 *data, u8 flags) len = 2; } dprintk(2, "(0x%08x, 0x%02x)\n", reg, flags); - status = i2c_read(state->i2c, adr, mm1, len, mm2, 2); + status = i2c_read(state, adr, mm1, len, mm2, 2); if (status < 0) return status; if (data) @@ -428,7 +455,7 @@ static int read32_flags(struct drxk_state *state, u32 reg, u32 *data, u8 flags) len = 2; } dprintk(2, "(0x%08x, 0x%02x)\n", reg, flags); - status = i2c_read(state->i2c, adr, mm1, len, mm2, 4); + status = i2c_read(state, adr, mm1, len, mm2, 4); if (status < 0) return status; if (data) @@ -464,7 +491,7 @@ static int write16_flags(struct drxk_state *state, u32 reg, u16 data, u8 flags) mm[len + 1] = (data >> 8) & 0xff; dprintk(2, "(0x%08x, 0x%04x, 0x%02x)\n", reg, data, flags); - return i2c_write(state->i2c, adr, mm, len + 2); + return i2c_write(state, adr, mm, len + 2); } static int write16(struct drxk_state *state, u32 reg, u16 data) @@ -495,7 +522,7 @@ static int write32_flags(struct drxk_state *state, u32 reg, u32 data, u8 flags) mm[len + 3] = (data >> 24) & 0xff; dprintk(2, "(0x%08x, 0x%08x, 0x%02x)\n", reg, data, flags); - return i2c_write(state->i2c, adr, mm, len + 4); + return i2c_write(state, adr, mm, len + 4); } static int write32(struct drxk_state *state, u32 reg, u32 data) @@ -542,7 +569,7 @@ static int write_block(struct drxk_state *state, u32 Address, printk(KERN_CONT " %02x", pBlock[i]); printk(KERN_CONT "\n"); } - status = i2c_write(state->i2c, state->demod_address, + status = i2c_write(state, state->demod_address, &state->Chunk[0], Chunk + AdrLength); if (status < 0) { printk(KERN_ERR "drxk: %s: i2c write error at addr 0x%02x\n", @@ -568,17 +595,17 @@ int PowerUpDevice(struct drxk_state *state) dprintk(1, "\n"); - status = i2c_read1(state->i2c, state->demod_address, &data); + status = i2c_read1(state, state->demod_address, &data); if (status < 0) { do { data = 0; - status = i2c_write(state->i2c, state->demod_address, + status = i2c_write(state, state->demod_address, &data, 1); msleep(10); retryCount++; if (status < 0) continue; - status = i2c_read1(state->i2c, state->demod_address, + status = i2c_read1(state, state->demod_address, &data); } while (status < 0 && (retryCount < DRXK_MAX_RETRIES_POWERUP)); @@ -932,7 +959,7 @@ static int GetDeviceCapabilities(struct drxk_state *state) if (status < 0) goto error; -printk(KERN_ERR "drxk: status = 0x%08x\n", sioTopJtagidLo); + printk(KERN_INFO "drxk: status = 0x%08x\n", sioTopJtagidLo); /* driver 0.9.0 */ switch ((sioTopJtagidLo >> 29) & 0xF) { @@ -2824,7 +2851,7 @@ static int ConfigureI2CBridge(struct drxk_state *state, bool bEnableBridge) dprintk(1, "\n"); if (state->m_DrxkState == DRXK_UNINITIALIZED) - goto error; + return 0; if (state->m_DrxkState == DRXK_POWERED_DOWN) goto error; @@ -2977,7 +3004,7 @@ static int ADCSynchronization(struct drxk_state *state) status = read16(state, IQM_AF_CLKNEG__A, &clkNeg); if (status < 0) goto error; - if ((clkNeg | IQM_AF_CLKNEG_CLKNEGDATA__M) == + if ((clkNeg & IQM_AF_CLKNEG_CLKNEGDATA__M) == IQM_AF_CLKNEG_CLKNEGDATA_CLK_ADC_DATA_POS) { clkNeg &= (~(IQM_AF_CLKNEG_CLKNEGDATA__M)); clkNeg |= @@ -5361,7 +5388,7 @@ static int GetQAMLockStatus(struct drxk_state *state, u32 *pLockStatus) SCU_RAM_COMMAND_CMD_DEMOD_GET_LOCK, 0, NULL, 2, Result); if (status < 0) - printk(KERN_ERR "drxk: %s status = %08x\n", __func__, status); + printk(KERN_ERR "drxk: Error %d on %s\n", status, __func__); if (Result[1] < SCU_RAM_QAM_LOCKED_LOCKED_DEMOD_LOCKED) { /* 0x0000 NOT LOCKED */ @@ -5388,12 +5415,67 @@ static int GetQAMLockStatus(struct drxk_state *state, u32 *pLockStatus) #define QAM_LOCKRANGE__M 0x10 #define QAM_LOCKRANGE_NORMAL 0x10 +static int QAMDemodulatorCommand(struct drxk_state *state, + int numberOfParameters) +{ + int status; + u16 cmdResult; + u16 setParamParameters[4] = { 0, 0, 0, 0 }; + + setParamParameters[0] = state->m_Constellation; /* modulation */ + setParamParameters[1] = DRXK_QAM_I12_J17; /* interleave mode */ + + if (numberOfParameters == 2) { + u16 setEnvParameters[1] = { 0 }; + + if (state->m_OperationMode == OM_QAM_ITU_C) + setEnvParameters[0] = QAM_TOP_ANNEX_C; + else + setEnvParameters[0] = QAM_TOP_ANNEX_A; + + status = scu_command(state, + SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_ENV, + 1, setEnvParameters, 1, &cmdResult); + if (status < 0) + goto error; + + status = scu_command(state, + SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM, + numberOfParameters, setParamParameters, + 1, &cmdResult); + } else if (numberOfParameters == 4) { + if (state->m_OperationMode == OM_QAM_ITU_C) + setParamParameters[2] = QAM_TOP_ANNEX_C; + else + setParamParameters[2] = QAM_TOP_ANNEX_A; + + setParamParameters[3] |= (QAM_MIRROR_AUTO_ON); + /* Env parameters */ + /* check for LOCKRANGE Extented */ + /* setParamParameters[3] |= QAM_LOCKRANGE_NORMAL; */ + + status = scu_command(state, + SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM, + numberOfParameters, setParamParameters, + 1, &cmdResult); + } else { + printk(KERN_WARNING "drxk: Unknown QAM demodulator parameter " + "count %d\n", numberOfParameters); + } + +error: + if (status < 0) + printk(KERN_WARNING "drxk: Warning %d on %s\n", + status, __func__); + return status; +} + static int SetQAM(struct drxk_state *state, u16 IntermediateFreqkHz, s32 tunerFreqOffset) { int status; - u16 setParamParameters[4] = { 0, 0, 0, 0 }; u16 cmdResult; + int qamDemodParamCount = state->qam_demod_parameter_count; dprintk(1, "\n"); /* @@ -5445,34 +5527,42 @@ static int SetQAM(struct drxk_state *state, u16 IntermediateFreqkHz, } if (status < 0) goto error; - setParamParameters[0] = state->m_Constellation; /* modulation */ - setParamParameters[1] = DRXK_QAM_I12_J17; /* interleave mode */ - if (state->m_OperationMode == OM_QAM_ITU_C) - setParamParameters[2] = QAM_TOP_ANNEX_C; - else - setParamParameters[2] = QAM_TOP_ANNEX_A; - setParamParameters[3] |= (QAM_MIRROR_AUTO_ON); - /* Env parameters */ - /* check for LOCKRANGE Extented */ - /* setParamParameters[3] |= QAM_LOCKRANGE_NORMAL; */ - status = scu_command(state, SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM, 4, setParamParameters, 1, &cmdResult); - if (status < 0) { - /* Fall-back to the simpler call */ - if (state->m_OperationMode == OM_QAM_ITU_C) - setParamParameters[0] = QAM_TOP_ANNEX_C; - else - setParamParameters[0] = QAM_TOP_ANNEX_A; - status = scu_command(state, SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_ENV, 1, setParamParameters, 1, &cmdResult); - if (status < 0) - goto error; + /* Use the 4-parameter if it's requested or we're probing for + * the correct command. */ + if (state->qam_demod_parameter_count == 4 + || !state->qam_demod_parameter_count) { + qamDemodParamCount = 4; + status = QAMDemodulatorCommand(state, qamDemodParamCount); + } - setParamParameters[0] = state->m_Constellation; /* modulation */ - setParamParameters[1] = DRXK_QAM_I12_J17; /* interleave mode */ - status = scu_command(state, SCU_RAM_COMMAND_STANDARD_QAM | SCU_RAM_COMMAND_CMD_DEMOD_SET_PARAM, 2, setParamParameters, 1, &cmdResult); + /* Use the 2-parameter command if it was requested or if we're + * probing for the correct command and the 4-parameter command + * failed. */ + if (state->qam_demod_parameter_count == 2 + || (!state->qam_demod_parameter_count && status < 0)) { + qamDemodParamCount = 2; + status = QAMDemodulatorCommand(state, qamDemodParamCount); } - if (status < 0) + + if (status < 0) { + dprintk(1, "Could not set demodulator parameters. Make " + "sure qam_demod_parameter_count (%d) is correct for " + "your firmware (%s).\n", + state->qam_demod_parameter_count, + state->microcode_name); goto error; + } else if (!state->qam_demod_parameter_count) { + dprintk(1, "Auto-probing the correct QAM demodulator command " + "parameters was successful - using %d parameters.\n", + qamDemodParamCount); + + /* + * One of our commands was successful. We don't need to + * auto-probe anymore, now that we got the correct command. + */ + state->qam_demod_parameter_count = qamDemodParamCount; + } /* * STEP 3: enable the system in a mode where the ADC provides valid @@ -5968,34 +6058,15 @@ error: return status; } -static int load_microcode(struct drxk_state *state, const char *mc_name) -{ - const struct firmware *fw = NULL; - int err = 0; - - dprintk(1, "\n"); - - err = request_firmware(&fw, mc_name, state->i2c->dev.parent); - if (err < 0) { - printk(KERN_ERR - "drxk: Could not load firmware file %s.\n", mc_name); - printk(KERN_INFO - "drxk: Copy %s to your hotplug directory!\n", mc_name); - return err; - } - err = DownloadMicrocode(state, fw->data, fw->size); - release_firmware(fw); - return err; -} - static int init_drxk(struct drxk_state *state) { - int status = 0; + int status = 0, n = 0; enum DRXPowerMode powerMode = DRXK_POWER_DOWN_OFDM; u16 driverVersion; dprintk(1, "\n"); if ((state->m_DrxkState == DRXK_UNINITIALIZED)) { + drxk_i2c_lock(state); status = PowerUpDevice(state); if (status < 0) goto error; @@ -6073,8 +6144,12 @@ static int init_drxk(struct drxk_state *state) if (status < 0) goto error; - if (state->microcode_name) - load_microcode(state, state->microcode_name); + if (state->fw) { + status = DownloadMicrocode(state, state->fw->data, + state->fw->size); + if (status < 0) + goto error; + } /* disable token-ring bus through OFDM block for possible ucode upload */ status = write16(state, SIO_OFDM_SH_OFDM_RING_ENABLE__A, SIO_OFDM_SH_OFDM_RING_ENABLE_OFF); @@ -6167,19 +6242,71 @@ static int init_drxk(struct drxk_state *state) state->m_DrxkState = DRXK_POWERED_DOWN; } else state->m_DrxkState = DRXK_STOPPED; + + /* Initialize the supported delivery systems */ + n = 0; + if (state->m_hasDVBC) { + state->frontend.ops.delsys[n++] = SYS_DVBC_ANNEX_A; + state->frontend.ops.delsys[n++] = SYS_DVBC_ANNEX_C; + strlcat(state->frontend.ops.info.name, " DVB-C", + sizeof(state->frontend.ops.info.name)); + } + if (state->m_hasDVBT) { + state->frontend.ops.delsys[n++] = SYS_DVBT; + strlcat(state->frontend.ops.info.name, " DVB-T", + sizeof(state->frontend.ops.info.name)); + } + drxk_i2c_unlock(state); } error: - if (status < 0) + if (status < 0) { + state->m_DrxkState = DRXK_NO_DEV; + drxk_i2c_unlock(state); printk(KERN_ERR "drxk: Error %d on %s\n", status, __func__); + } return status; } +static void load_firmware_cb(const struct firmware *fw, + void *context) +{ + struct drxk_state *state = context; + + dprintk(1, ": %s\n", fw ? "firmware loaded" : "firmware not loaded"); + if (!fw) { + printk(KERN_ERR + "drxk: Could not load firmware file %s.\n", + state->microcode_name); + printk(KERN_INFO + "drxk: Copy %s to your hotplug directory!\n", + state->microcode_name); + state->microcode_name = NULL; + + /* + * As firmware is now load asynchronous, it is not possible + * anymore to fail at frontend attach. We might silently + * return here, and hope that the driver won't crash. + * We might also change all DVB callbacks to return -ENODEV + * if the device is not initialized. + * As the DRX-K devices have their own internal firmware, + * let's just hope that it will match a firmware revision + * compatible with this driver and proceed. + */ + } + state->fw = fw; + + init_drxk(state); +} + static void drxk_release(struct dvb_frontend *fe) { struct drxk_state *state = fe->demodulator_priv; dprintk(1, "\n"); + if (state->fw) + release_firmware(state->fw); + kfree(state); } @@ -6188,6 +6315,12 @@ static int drxk_sleep(struct dvb_frontend *fe) struct drxk_state *state = fe->demodulator_priv; dprintk(1, "\n"); + + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + if (state->m_DrxkState == DRXK_UNINITIALIZED) + return 0; + ShutDown(state); return 0; } @@ -6196,7 +6329,11 @@ static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable) { struct drxk_state *state = fe->demodulator_priv; - dprintk(1, "%s\n", enable ? "enable" : "disable"); + dprintk(1, ": %s\n", enable ? "enable" : "disable"); + + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + return ConfigureI2CBridge(state, enable ? true : false); } @@ -6209,6 +6346,12 @@ static int drxk_set_parameters(struct dvb_frontend *fe) dprintk(1, "\n"); + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + + if (state->m_DrxkState == DRXK_UNINITIALIZED) + return -EAGAIN; + if (!fe->ops.tuner_ops.get_if_frequency) { printk(KERN_ERR "drxk: Error: get_if_frequency() not defined at tuner. Can't work without it!\n"); @@ -6262,6 +6405,12 @@ static int drxk_read_status(struct dvb_frontend *fe, fe_status_t *status) u32 stat; dprintk(1, "\n"); + + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + if (state->m_DrxkState == DRXK_UNINITIALIZED) + return -EAGAIN; + *status = 0; GetLockStatus(state, &stat, 0); if (stat == MPEG_LOCK) @@ -6275,8 +6424,15 @@ static int drxk_read_status(struct dvb_frontend *fe, fe_status_t *status) static int drxk_read_ber(struct dvb_frontend *fe, u32 *ber) { + struct drxk_state *state = fe->demodulator_priv; + dprintk(1, "\n"); + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + if (state->m_DrxkState == DRXK_UNINITIALIZED) + return -EAGAIN; + *ber = 0; return 0; } @@ -6288,6 +6444,12 @@ static int drxk_read_signal_strength(struct dvb_frontend *fe, u32 val = 0; dprintk(1, "\n"); + + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + if (state->m_DrxkState == DRXK_UNINITIALIZED) + return -EAGAIN; + ReadIFAgc(state, &val); *strength = val & 0xffff; return 0; @@ -6299,6 +6461,12 @@ static int drxk_read_snr(struct dvb_frontend *fe, u16 *snr) s32 snr2; dprintk(1, "\n"); + + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + if (state->m_DrxkState == DRXK_UNINITIALIZED) + return -EAGAIN; + GetSignalToNoise(state, &snr2); *snr = snr2 & 0xffff; return 0; @@ -6310,6 +6478,12 @@ static int drxk_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) u16 err; dprintk(1, "\n"); + + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + if (state->m_DrxkState == DRXK_UNINITIALIZED) + return -EAGAIN; + DVBTQAMGetAccPktErr(state, &err); *ucblocks = (u32) err; return 0; @@ -6318,9 +6492,16 @@ static int drxk_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) static int drxk_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *sets) { + struct drxk_state *state = fe->demodulator_priv; struct dtv_frontend_properties *p = &fe->dtv_property_cache; dprintk(1, "\n"); + + if (state->m_DrxkState == DRXK_NO_DEV) + return -ENODEV; + if (state->m_DrxkState == DRXK_UNINITIALIZED) + return -EAGAIN; + switch (p->delivery_system) { case SYS_DVBC_ANNEX_A: case SYS_DVBC_ANNEX_C: @@ -6371,10 +6552,9 @@ static struct dvb_frontend_ops drxk_ops = { struct dvb_frontend *drxk_attach(const struct drxk_config *config, struct i2c_adapter *i2c) { - int n; - struct drxk_state *state = NULL; u8 adr = config->adr; + int status; dprintk(1, "\n"); state = kzalloc(sizeof(struct drxk_state), GFP_KERNEL); @@ -6385,6 +6565,7 @@ struct dvb_frontend *drxk_attach(const struct drxk_config *config, state->demod_address = adr; state->single_master = config->single_master; state->microcode_name = config->microcode_name; + state->qam_demod_parameter_count = config->qam_demod_parameter_count; state->no_i2c_bridge = config->no_i2c_bridge; state->antenna_gpio = config->antenna_gpio; state->antenna_dvbt = config->antenna_dvbt; @@ -6425,22 +6606,21 @@ struct dvb_frontend *drxk_attach(const struct drxk_config *config, state->frontend.demodulator_priv = state; init_state(state); - if (init_drxk(state) < 0) - goto error; - /* Initialize the supported delivery systems */ - n = 0; - if (state->m_hasDVBC) { - state->frontend.ops.delsys[n++] = SYS_DVBC_ANNEX_A; - state->frontend.ops.delsys[n++] = SYS_DVBC_ANNEX_C; - strlcat(state->frontend.ops.info.name, " DVB-C", - sizeof(state->frontend.ops.info.name)); - } - if (state->m_hasDVBT) { - state->frontend.ops.delsys[n++] = SYS_DVBT; - strlcat(state->frontend.ops.info.name, " DVB-T", - sizeof(state->frontend.ops.info.name)); - } + /* Load firmware and initialize DRX-K */ + if (state->microcode_name) { + status = request_firmware_nowait(THIS_MODULE, 1, + state->microcode_name, + state->i2c->dev.parent, + GFP_KERNEL, + state, load_firmware_cb); + if (status < 0) { + printk(KERN_ERR + "drxk: failed to request a firmware\n"); + return NULL; + } + } else if (init_drxk(state) < 0) + goto error; printk(KERN_INFO "drxk: frontend initialized.\n"); return &state->frontend; diff --git a/drivers/media/dvb/frontends/drxk_hard.h b/drivers/media/dvb/frontends/drxk_hard.h index 4bbf841..6bb9fc4 100644 --- a/drivers/media/dvb/frontends/drxk_hard.h +++ b/drivers/media/dvb/frontends/drxk_hard.h @@ -94,7 +94,15 @@ enum DRXPowerMode { enum AGC_CTRL_MODE { DRXK_AGC_CTRL_AUTO = 0, DRXK_AGC_CTRL_USER, DRXK_AGC_CTRL_OFF }; -enum EDrxkState { DRXK_UNINITIALIZED = 0, DRXK_STOPPED, DRXK_DTV_STARTED, DRXK_ATV_STARTED, DRXK_POWERED_DOWN }; +enum EDrxkState { + DRXK_UNINITIALIZED = 0, + DRXK_STOPPED, + DRXK_DTV_STARTED, + DRXK_ATV_STARTED, + DRXK_POWERED_DOWN, + DRXK_NO_DEV /* If drxk init failed */ +}; + enum EDrxkCoefArrayIndex { DRXK_COEF_IDX_MN = 0, DRXK_COEF_IDX_FM , @@ -325,6 +333,9 @@ struct drxk_state { enum DRXPowerMode m_currentPowerMode; + /* when true, avoids other devices to use the I2C bus */ + bool drxk_i2c_exclusive_lock; + /* * Configurable parameters at the driver. They stores the values found * at struct drxk_config. @@ -338,7 +349,11 @@ struct drxk_state { bool antenna_dvbt; u16 antenna_gpio; + /* Firmware */ const char *microcode_name; + struct completion fw_wait_load; + const struct firmware *fw; + int qam_demod_parameter_count; }; #define NEVER_LOCK 0 diff --git a/drivers/media/dvb/frontends/lgs8gxx.c b/drivers/media/dvb/frontends/lgs8gxx.c index 568363a..c2ea274 100644 --- a/drivers/media/dvb/frontends/lgs8gxx.c +++ b/drivers/media/dvb/frontends/lgs8gxx.c @@ -40,6 +40,8 @@ static int debug; static int fake_signal_str = 1; +#define LGS8GXX_FIRMWARE "lgs8g75.fw" + module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); @@ -592,7 +594,7 @@ static int lgs8g75_init_data(struct lgs8gxx_state *priv) int rc; int i; - rc = request_firmware(&fw, "lgs8g75.fw", &priv->i2c->dev); + rc = request_firmware(&fw, LGS8GXX_FIRMWARE, &priv->i2c->dev); if (rc) return rc; @@ -1070,3 +1072,4 @@ EXPORT_SYMBOL(lgs8gxx_attach); MODULE_DESCRIPTION("Legend Silicon LGS8913/LGS8GXX DMB-TH demodulator driver"); MODULE_AUTHOR("David T. L. Wong "); MODULE_LICENSE("GPL"); +MODULE_FIRMWARE(LGS8GXX_FIRMWARE); diff --git a/drivers/media/dvb/frontends/rtl2832.c b/drivers/media/dvb/frontends/rtl2832.c new file mode 100644 index 0000000..28269cc --- /dev/null +++ b/drivers/media/dvb/frontends/rtl2832.c @@ -0,0 +1,789 @@ +/* + * Realtek RTL2832 DVB-T demodulator driver + * + * Copyright (C) 2012 Thomas Mair + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "rtl2832_priv.h" +#include + +int rtl2832_debug; +module_param_named(debug, rtl2832_debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); + +#define REG_MASK(b) (BIT(b + 1) - 1) + +static const struct rtl2832_reg_entry registers[] = { + [DVBT_SOFT_RST] = {0x1, 0x1, 2, 2}, + [DVBT_IIC_REPEAT] = {0x1, 0x1, 3, 3}, + [DVBT_TR_WAIT_MIN_8K] = {0x1, 0x88, 11, 2}, + [DVBT_RSD_BER_FAIL_VAL] = {0x1, 0x8f, 15, 0}, + [DVBT_EN_BK_TRK] = {0x1, 0xa6, 7, 7}, + [DVBT_AD_EN_REG] = {0x0, 0x8, 7, 7}, + [DVBT_AD_EN_REG1] = {0x0, 0x8, 6, 6}, + [DVBT_EN_BBIN] = {0x1, 0xb1, 0, 0}, + [DVBT_MGD_THD0] = {0x1, 0x95, 7, 0}, + [DVBT_MGD_THD1] = {0x1, 0x96, 7, 0}, + [DVBT_MGD_THD2] = {0x1, 0x97, 7, 0}, + [DVBT_MGD_THD3] = {0x1, 0x98, 7, 0}, + [DVBT_MGD_THD4] = {0x1, 0x99, 7, 0}, + [DVBT_MGD_THD5] = {0x1, 0x9a, 7, 0}, + [DVBT_MGD_THD6] = {0x1, 0x9b, 7, 0}, + [DVBT_MGD_THD7] = {0x1, 0x9c, 7, 0}, + [DVBT_EN_CACQ_NOTCH] = {0x1, 0x61, 4, 4}, + [DVBT_AD_AV_REF] = {0x0, 0x9, 6, 0}, + [DVBT_REG_PI] = {0x0, 0xa, 2, 0}, + [DVBT_PIP_ON] = {0x0, 0x21, 3, 3}, + [DVBT_SCALE1_B92] = {0x2, 0x92, 7, 0}, + [DVBT_SCALE1_B93] = {0x2, 0x93, 7, 0}, + [DVBT_SCALE1_BA7] = {0x2, 0xa7, 7, 0}, + [DVBT_SCALE1_BA9] = {0x2, 0xa9, 7, 0}, + [DVBT_SCALE1_BAA] = {0x2, 0xaa, 7, 0}, + [DVBT_SCALE1_BAB] = {0x2, 0xab, 7, 0}, + [DVBT_SCALE1_BAC] = {0x2, 0xac, 7, 0}, + [DVBT_SCALE1_BB0] = {0x2, 0xb0, 7, 0}, + [DVBT_SCALE1_BB1] = {0x2, 0xb1, 7, 0}, + [DVBT_KB_P1] = {0x1, 0x64, 3, 1}, + [DVBT_KB_P2] = {0x1, 0x64, 6, 4}, + [DVBT_KB_P3] = {0x1, 0x65, 2, 0}, + [DVBT_OPT_ADC_IQ] = {0x0, 0x6, 5, 4}, + [DVBT_AD_AVI] = {0x0, 0x9, 1, 0}, + [DVBT_AD_AVQ] = {0x0, 0x9, 3, 2}, + [DVBT_K1_CR_STEP12] = {0x2, 0xad, 9, 4}, + [DVBT_TRK_KS_P2] = {0x1, 0x6f, 2, 0}, + [DVBT_TRK_KS_I2] = {0x1, 0x70, 5, 3}, + [DVBT_TR_THD_SET2] = {0x1, 0x72, 3, 0}, + [DVBT_TRK_KC_P2] = {0x1, 0x73, 5, 3}, + [DVBT_TRK_KC_I2] = {0x1, 0x75, 2, 0}, + [DVBT_CR_THD_SET2] = {0x1, 0x76, 7, 6}, + [DVBT_PSET_IFFREQ] = {0x1, 0x19, 21, 0}, + [DVBT_SPEC_INV] = {0x1, 0x15, 0, 0}, + [DVBT_RSAMP_RATIO] = {0x1, 0x9f, 27, 2}, + [DVBT_CFREQ_OFF_RATIO] = {0x1, 0x9d, 23, 4}, + [DVBT_FSM_STAGE] = {0x3, 0x51, 6, 3}, + [DVBT_RX_CONSTEL] = {0x3, 0x3c, 3, 2}, + [DVBT_RX_HIER] = {0x3, 0x3c, 6, 4}, + [DVBT_RX_C_RATE_LP] = {0x3, 0x3d, 2, 0}, + [DVBT_RX_C_RATE_HP] = {0x3, 0x3d, 5, 3}, + [DVBT_GI_IDX] = {0x3, 0x51, 1, 0}, + [DVBT_FFT_MODE_IDX] = {0x3, 0x51, 2, 2}, + [DVBT_RSD_BER_EST] = {0x3, 0x4e, 15, 0}, + [DVBT_CE_EST_EVM] = {0x4, 0xc, 15, 0}, + [DVBT_RF_AGC_VAL] = {0x3, 0x5b, 13, 0}, + [DVBT_IF_AGC_VAL] = {0x3, 0x59, 13, 0}, + [DVBT_DAGC_VAL] = {0x3, 0x5, 7, 0}, + [DVBT_SFREQ_OFF] = {0x3, 0x18, 13, 0}, + [DVBT_CFREQ_OFF] = {0x3, 0x5f, 17, 0}, + [DVBT_POLAR_RF_AGC] = {0x0, 0xe, 1, 1}, + [DVBT_POLAR_IF_AGC] = {0x0, 0xe, 0, 0}, + [DVBT_AAGC_HOLD] = {0x1, 0x4, 5, 5}, + [DVBT_EN_RF_AGC] = {0x1, 0x4, 6, 6}, + [DVBT_EN_IF_AGC] = {0x1, 0x4, 7, 7}, + [DVBT_IF_AGC_MIN] = {0x1, 0x8, 7, 0}, + [DVBT_IF_AGC_MAX] = {0x1, 0x9, 7, 0}, + [DVBT_RF_AGC_MIN] = {0x1, 0xa, 7, 0}, + [DVBT_RF_AGC_MAX] = {0x1, 0xb, 7, 0}, + [DVBT_IF_AGC_MAN] = {0x1, 0xc, 6, 6}, + [DVBT_IF_AGC_MAN_VAL] = {0x1, 0xc, 13, 0}, + [DVBT_RF_AGC_MAN] = {0x1, 0xe, 6, 6}, + [DVBT_RF_AGC_MAN_VAL] = {0x1, 0xe, 13, 0}, + [DVBT_DAGC_TRG_VAL] = {0x1, 0x12, 7, 0}, + [DVBT_AGC_TARG_VAL_0] = {0x1, 0x2, 0, 0}, + [DVBT_AGC_TARG_VAL_8_1] = {0x1, 0x3, 7, 0}, + [DVBT_AAGC_LOOP_GAIN] = {0x1, 0xc7, 5, 1}, + [DVBT_LOOP_GAIN2_3_0] = {0x1, 0x4, 4, 1}, + [DVBT_LOOP_GAIN2_4] = {0x1, 0x5, 7, 7}, + [DVBT_LOOP_GAIN3] = {0x1, 0xc8, 4, 0}, + [DVBT_VTOP1] = {0x1, 0x6, 5, 0}, + [DVBT_VTOP2] = {0x1, 0xc9, 5, 0}, + [DVBT_VTOP3] = {0x1, 0xca, 5, 0}, + [DVBT_KRF1] = {0x1, 0xcb, 7, 0}, + [DVBT_KRF2] = {0x1, 0x7, 7, 0}, + [DVBT_KRF3] = {0x1, 0xcd, 7, 0}, + [DVBT_KRF4] = {0x1, 0xce, 7, 0}, + [DVBT_EN_GI_PGA] = {0x1, 0xe5, 0, 0}, + [DVBT_THD_LOCK_UP] = {0x1, 0xd9, 8, 0}, + [DVBT_THD_LOCK_DW] = {0x1, 0xdb, 8, 0}, + [DVBT_THD_UP1] = {0x1, 0xdd, 7, 0}, + [DVBT_THD_DW1] = {0x1, 0xde, 7, 0}, + [DVBT_INTER_CNT_LEN] = {0x1, 0xd8, 3, 0}, + [DVBT_GI_PGA_STATE] = {0x1, 0xe6, 3, 3}, + [DVBT_EN_AGC_PGA] = {0x1, 0xd7, 0, 0}, + [DVBT_CKOUTPAR] = {0x1, 0x7b, 5, 5}, + [DVBT_CKOUT_PWR] = {0x1, 0x7b, 6, 6}, + [DVBT_SYNC_DUR] = {0x1, 0x7b, 7, 7}, + [DVBT_ERR_DUR] = {0x1, 0x7c, 0, 0}, + [DVBT_SYNC_LVL] = {0x1, 0x7c, 1, 1}, + [DVBT_ERR_LVL] = {0x1, 0x7c, 2, 2}, + [DVBT_VAL_LVL] = {0x1, 0x7c, 3, 3}, + [DVBT_SERIAL] = {0x1, 0x7c, 4, 4}, + [DVBT_SER_LSB] = {0x1, 0x7c, 5, 5}, + [DVBT_CDIV_PH0] = {0x1, 0x7d, 3, 0}, + [DVBT_CDIV_PH1] = {0x1, 0x7d, 7, 4}, + [DVBT_MPEG_IO_OPT_2_2] = {0x0, 0x6, 7, 7}, + [DVBT_MPEG_IO_OPT_1_0] = {0x0, 0x7, 7, 6}, + [DVBT_CKOUTPAR_PIP] = {0x0, 0xb7, 4, 4}, + [DVBT_CKOUT_PWR_PIP] = {0x0, 0xb7, 3, 3}, + [DVBT_SYNC_LVL_PIP] = {0x0, 0xb7, 2, 2}, + [DVBT_ERR_LVL_PIP] = {0x0, 0xb7, 1, 1}, + [DVBT_VAL_LVL_PIP] = {0x0, 0xb7, 0, 0}, + [DVBT_CKOUTPAR_PID] = {0x0, 0xb9, 4, 4}, + [DVBT_CKOUT_PWR_PID] = {0x0, 0xb9, 3, 3}, + [DVBT_SYNC_LVL_PID] = {0x0, 0xb9, 2, 2}, + [DVBT_ERR_LVL_PID] = {0x0, 0xb9, 1, 1}, + [DVBT_VAL_LVL_PID] = {0x0, 0xb9, 0, 0}, + [DVBT_SM_PASS] = {0x1, 0x93, 11, 0}, + [DVBT_AD7_SETTING] = {0x0, 0x11, 15, 0}, + [DVBT_RSSI_R] = {0x3, 0x1, 6, 0}, + [DVBT_ACI_DET_IND] = {0x3, 0x12, 0, 0}, + [DVBT_REG_MON] = {0x0, 0xd, 1, 0}, + [DVBT_REG_MONSEL] = {0x0, 0xd, 2, 2}, + [DVBT_REG_GPE] = {0x0, 0xd, 7, 7}, + [DVBT_REG_GPO] = {0x0, 0x10, 0, 0}, + [DVBT_REG_4MSEL] = {0x0, 0x13, 0, 0}, +}; + +/* write multiple hardware registers */ +static int rtl2832_wr(struct rtl2832_priv *priv, u8 reg, u8 *val, int len) +{ + int ret; + u8 buf[1+len]; + struct i2c_msg msg[1] = { + { + .addr = priv->cfg.i2c_addr, + .flags = 0, + .len = 1+len, + .buf = buf, + } + }; + + buf[0] = reg; + memcpy(&buf[1], val, len); + + ret = i2c_transfer(priv->i2c, msg, 1); + if (ret == 1) { + ret = 0; + } else { + warn("i2c wr failed=%d reg=%02x len=%d", ret, reg, len); + ret = -EREMOTEIO; + } + return ret; +} + +/* read multiple hardware registers */ +static int rtl2832_rd(struct rtl2832_priv *priv, u8 reg, u8 *val, int len) +{ + int ret; + struct i2c_msg msg[2] = { + { + .addr = priv->cfg.i2c_addr, + .flags = 0, + .len = 1, + .buf = ®, + }, { + .addr = priv->cfg.i2c_addr, + .flags = I2C_M_RD, + .len = len, + .buf = val, + } + }; + + ret = i2c_transfer(priv->i2c, msg, 2); + if (ret == 2) { + ret = 0; + } else { + warn("i2c rd failed=%d reg=%02x len=%d", ret, reg, len); + ret = -EREMOTEIO; +} +return ret; +} + +/* write multiple registers */ +static int rtl2832_wr_regs(struct rtl2832_priv *priv, u8 reg, u8 page, u8 *val, + int len) +{ + int ret; + + + /* switch bank if needed */ + if (page != priv->page) { + ret = rtl2832_wr(priv, 0x00, &page, 1); + if (ret) + return ret; + + priv->page = page; +} + +return rtl2832_wr(priv, reg, val, len); +} + +/* read multiple registers */ +static int rtl2832_rd_regs(struct rtl2832_priv *priv, u8 reg, u8 page, u8 *val, + int len) +{ + int ret; + + /* switch bank if needed */ + if (page != priv->page) { + ret = rtl2832_wr(priv, 0x00, &page, 1); + if (ret) + return ret; + + priv->page = page; + } + + return rtl2832_rd(priv, reg, val, len); +} + +#if 0 /* currently not used */ +/* write single register */ +static int rtl2832_wr_reg(struct rtl2832_priv *priv, u8 reg, u8 page, u8 val) +{ + return rtl2832_wr_regs(priv, reg, page, &val, 1); +} +#endif + +/* read single register */ +static int rtl2832_rd_reg(struct rtl2832_priv *priv, u8 reg, u8 page, u8 *val) +{ + return rtl2832_rd_regs(priv, reg, page, val, 1); +} + +int rtl2832_rd_demod_reg(struct rtl2832_priv *priv, int reg, u32 *val) +{ + int ret; + + u8 reg_start_addr; + u8 msb, lsb; + u8 page; + u8 reading[4]; + u32 reading_tmp; + int i; + + u8 len; + u32 mask; + + reg_start_addr = registers[reg].start_address; + msb = registers[reg].msb; + lsb = registers[reg].lsb; + page = registers[reg].page; + + len = (msb >> 3) + 1; + mask = REG_MASK(msb - lsb); + + ret = rtl2832_rd_regs(priv, reg_start_addr, page, &reading[0], len); + if (ret) + goto err; + + reading_tmp = 0; + for (i = 0; i < len; i++) + reading_tmp |= reading[i] << ((len - 1 - i) * 8); + + *val = (reading_tmp >> lsb) & mask; + + return ret; + +err: + dbg("%s: failed=%d", __func__, ret); + return ret; + +} + +int rtl2832_wr_demod_reg(struct rtl2832_priv *priv, int reg, u32 val) +{ + int ret, i; + u8 len; + u8 reg_start_addr; + u8 msb, lsb; + u8 page; + u32 mask; + + + u8 reading[4]; + u8 writing[4]; + u32 reading_tmp; + u32 writing_tmp; + + + reg_start_addr = registers[reg].start_address; + msb = registers[reg].msb; + lsb = registers[reg].lsb; + page = registers[reg].page; + + len = (msb >> 3) + 1; + mask = REG_MASK(msb - lsb); + + + ret = rtl2832_rd_regs(priv, reg_start_addr, page, &reading[0], len); + if (ret) + goto err; + + reading_tmp = 0; + for (i = 0; i < len; i++) + reading_tmp |= reading[i] << ((len - 1 - i) * 8); + + writing_tmp = reading_tmp & ~(mask << lsb); + writing_tmp |= ((val & mask) << lsb); + + + for (i = 0; i < len; i++) + writing[i] = (writing_tmp >> ((len - 1 - i) * 8)) & 0xff; + + ret = rtl2832_wr_regs(priv, reg_start_addr, page, &writing[0], len); + if (ret) + goto err; + + return ret; + +err: + dbg("%s: failed=%d", __func__, ret); + return ret; + +} + + +static int rtl2832_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) +{ + int ret; + struct rtl2832_priv *priv = fe->demodulator_priv; + + dbg("%s: enable=%d", __func__, enable); + + /* gate already open or close */ + if (priv->i2c_gate_state == enable) + return 0; + + ret = rtl2832_wr_demod_reg(priv, DVBT_IIC_REPEAT, (enable ? 0x1 : 0x0)); + if (ret) + goto err; + + priv->i2c_gate_state = enable; + + return ret; +err: + dbg("%s: failed=%d", __func__, ret); + return ret; +} + + + +static int rtl2832_init(struct dvb_frontend *fe) +{ + struct rtl2832_priv *priv = fe->demodulator_priv; + int i, ret; + + u8 en_bbin; + u64 pset_iffreq; + + /* initialization values for the demodulator registers */ + struct rtl2832_reg_value rtl2832_initial_regs[] = { + {DVBT_AD_EN_REG, 0x1}, + {DVBT_AD_EN_REG1, 0x1}, + {DVBT_RSD_BER_FAIL_VAL, 0x2800}, + {DVBT_MGD_THD0, 0x10}, + {DVBT_MGD_THD1, 0x20}, + {DVBT_MGD_THD2, 0x20}, + {DVBT_MGD_THD3, 0x40}, + {DVBT_MGD_THD4, 0x22}, + {DVBT_MGD_THD5, 0x32}, + {DVBT_MGD_THD6, 0x37}, + {DVBT_MGD_THD7, 0x39}, + {DVBT_EN_BK_TRK, 0x0}, + {DVBT_EN_CACQ_NOTCH, 0x0}, + {DVBT_AD_AV_REF, 0x2a}, + {DVBT_REG_PI, 0x6}, + {DVBT_PIP_ON, 0x0}, + {DVBT_CDIV_PH0, 0x8}, + {DVBT_CDIV_PH1, 0x8}, + {DVBT_SCALE1_B92, 0x4}, + {DVBT_SCALE1_B93, 0xb0}, + {DVBT_SCALE1_BA7, 0x78}, + {DVBT_SCALE1_BA9, 0x28}, + {DVBT_SCALE1_BAA, 0x59}, + {DVBT_SCALE1_BAB, 0x83}, + {DVBT_SCALE1_BAC, 0xd4}, + {DVBT_SCALE1_BB0, 0x65}, + {DVBT_SCALE1_BB1, 0x43}, + {DVBT_KB_P1, 0x1}, + {DVBT_KB_P2, 0x4}, + {DVBT_KB_P3, 0x7}, + {DVBT_K1_CR_STEP12, 0xa}, + {DVBT_REG_GPE, 0x1}, + {DVBT_SERIAL, 0x0}, + {DVBT_CDIV_PH0, 0x9}, + {DVBT_CDIV_PH1, 0x9}, + {DVBT_MPEG_IO_OPT_2_2, 0x0}, + {DVBT_MPEG_IO_OPT_1_0, 0x0}, + {DVBT_TRK_KS_P2, 0x4}, + {DVBT_TRK_KS_I2, 0x7}, + {DVBT_TR_THD_SET2, 0x6}, + {DVBT_TRK_KC_I2, 0x5}, + {DVBT_CR_THD_SET2, 0x1}, + {DVBT_SPEC_INV, 0x0}, + {DVBT_DAGC_TRG_VAL, 0x5a}, + {DVBT_AGC_TARG_VAL_0, 0x0}, + {DVBT_AGC_TARG_VAL_8_1, 0x5a}, + {DVBT_AAGC_LOOP_GAIN, 0x16}, + {DVBT_LOOP_GAIN2_3_0, 0x6}, + {DVBT_LOOP_GAIN2_4, 0x1}, + {DVBT_LOOP_GAIN3, 0x16}, + {DVBT_VTOP1, 0x35}, + {DVBT_VTOP2, 0x21}, + {DVBT_VTOP3, 0x21}, + {DVBT_KRF1, 0x0}, + {DVBT_KRF2, 0x40}, + {DVBT_KRF3, 0x10}, + {DVBT_KRF4, 0x10}, + {DVBT_IF_AGC_MIN, 0x80}, + {DVBT_IF_AGC_MAX, 0x7f}, + {DVBT_RF_AGC_MIN, 0x80}, + {DVBT_RF_AGC_MAX, 0x7f}, + {DVBT_POLAR_RF_AGC, 0x0}, + {DVBT_POLAR_IF_AGC, 0x0}, + {DVBT_AD7_SETTING, 0xe9bf}, + {DVBT_EN_GI_PGA, 0x0}, + {DVBT_THD_LOCK_UP, 0x0}, + {DVBT_THD_LOCK_DW, 0x0}, + {DVBT_THD_UP1, 0x11}, + {DVBT_THD_DW1, 0xef}, + {DVBT_INTER_CNT_LEN, 0xc}, + {DVBT_GI_PGA_STATE, 0x0}, + {DVBT_EN_AGC_PGA, 0x1}, + {DVBT_IF_AGC_MAN, 0x0}, + }; + + + dbg("%s", __func__); + + en_bbin = (priv->cfg.if_dvbt == 0 ? 0x1 : 0x0); + + /* + * PSET_IFFREQ = - floor((IfFreqHz % CrystalFreqHz) * pow(2, 22) + * / CrystalFreqHz) + */ + pset_iffreq = priv->cfg.if_dvbt % priv->cfg.xtal; + pset_iffreq *= 0x400000; + pset_iffreq = div_u64(pset_iffreq, priv->cfg.xtal); + pset_iffreq = pset_iffreq & 0x3fffff; + + + + for (i = 0; i < ARRAY_SIZE(rtl2832_initial_regs); i++) { + ret = rtl2832_wr_demod_reg(priv, rtl2832_initial_regs[i].reg, + rtl2832_initial_regs[i].value); + if (ret) + goto err; + } + + /* if frequency settings */ + ret = rtl2832_wr_demod_reg(priv, DVBT_EN_BBIN, en_bbin); + if (ret) + goto err; + + ret = rtl2832_wr_demod_reg(priv, DVBT_PSET_IFFREQ, pset_iffreq); + if (ret) + goto err; + + priv->sleeping = false; + + return ret; + +err: + dbg("%s: failed=%d", __func__, ret); + return ret; +} + +static int rtl2832_sleep(struct dvb_frontend *fe) +{ + struct rtl2832_priv *priv = fe->demodulator_priv; + + dbg("%s", __func__); + priv->sleeping = true; + return 0; +} + +int rtl2832_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *s) +{ + dbg("%s", __func__); + s->min_delay_ms = 1000; + s->step_size = fe->ops.info.frequency_stepsize * 2; + s->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; + return 0; +} + +static int rtl2832_set_frontend(struct dvb_frontend *fe) +{ + struct rtl2832_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, i, j; + u64 bw_mode, num, num2; + u32 resamp_ratio, cfreq_off_ratio; + + + static u8 bw_params[3][32] = { + /* 6 MHz bandwidth */ + { + 0xf5, 0xff, 0x15, 0x38, 0x5d, 0x6d, 0x52, 0x07, 0xfa, 0x2f, + 0x53, 0xf5, 0x3f, 0xca, 0x0b, 0x91, 0xea, 0x30, 0x63, 0xb2, + 0x13, 0xda, 0x0b, 0xc4, 0x18, 0x7e, 0x16, 0x66, 0x08, 0x67, + 0x19, 0xe0, + }, + + /* 7 MHz bandwidth */ + { + 0xe7, 0xcc, 0xb5, 0xba, 0xe8, 0x2f, 0x67, 0x61, 0x00, 0xaf, + 0x86, 0xf2, 0xbf, 0x59, 0x04, 0x11, 0xb6, 0x33, 0xa4, 0x30, + 0x15, 0x10, 0x0a, 0x42, 0x18, 0xf8, 0x17, 0xd9, 0x07, 0x22, + 0x19, 0x10, + }, + + /* 8 MHz bandwidth */ + { + 0x09, 0xf6, 0xd2, 0xa7, 0x9a, 0xc9, 0x27, 0x77, 0x06, 0xbf, + 0xec, 0xf4, 0x4f, 0x0b, 0xfc, 0x01, 0x63, 0x35, 0x54, 0xa7, + 0x16, 0x66, 0x08, 0xb4, 0x19, 0x6e, 0x19, 0x65, 0x05, 0xc8, + 0x19, 0xe0, + }, + }; + + + dbg("%s: frequency=%d bandwidth_hz=%d inversion=%d", __func__, + c->frequency, c->bandwidth_hz, c->inversion); + + + /* program tuner */ + if (fe->ops.tuner_ops.set_params) + fe->ops.tuner_ops.set_params(fe); + + + switch (c->bandwidth_hz) { + case 6000000: + i = 0; + bw_mode = 48000000; + break; + case 7000000: + i = 1; + bw_mode = 56000000; + break; + case 8000000: + i = 2; + bw_mode = 64000000; + break; + default: + dbg("invalid bandwidth"); + return -EINVAL; + } + + for (j = 0; j < sizeof(bw_params[0]); j++) { + ret = rtl2832_wr_regs(priv, 0x1c+j, 1, &bw_params[i][j], 1); + if (ret) + goto err; + } + + /* calculate and set resample ratio + * RSAMP_RATIO = floor(CrystalFreqHz * 7 * pow(2, 22) + * / ConstWithBandwidthMode) + */ + num = priv->cfg.xtal * 7; + num *= 0x400000; + num = div_u64(num, bw_mode); + resamp_ratio = num & 0x3ffffff; + ret = rtl2832_wr_demod_reg(priv, DVBT_RSAMP_RATIO, resamp_ratio); + if (ret) + goto err; + + /* calculate and set cfreq off ratio + * CFREQ_OFF_RATIO = - floor(ConstWithBandwidthMode * pow(2, 20) + * / (CrystalFreqHz * 7)) + */ + num = bw_mode << 20; + num2 = priv->cfg.xtal * 7; + num = div_u64(num, num2); + num = -num; + cfreq_off_ratio = num & 0xfffff; + ret = rtl2832_wr_demod_reg(priv, DVBT_CFREQ_OFF_RATIO, cfreq_off_ratio); + if (ret) + goto err; + + + /* soft reset */ + ret = rtl2832_wr_demod_reg(priv, DVBT_SOFT_RST, 0x1); + if (ret) + goto err; + + ret = rtl2832_wr_demod_reg(priv, DVBT_SOFT_RST, 0x0); + if (ret) + goto err; + + return ret; +err: + info("%s: failed=%d", __func__, ret); + return ret; +} + +static int rtl2832_read_status(struct dvb_frontend *fe, fe_status_t *status) +{ + struct rtl2832_priv *priv = fe->demodulator_priv; + int ret; + u32 tmp; + *status = 0; + + + dbg("%s", __func__); + if (priv->sleeping) + return 0; + + ret = rtl2832_rd_demod_reg(priv, DVBT_FSM_STAGE, &tmp); + if (ret) + goto err; + + if (tmp == 11) { + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; + } + /* TODO find out if this is also true for rtl2832? */ + /*else if (tmp == 10) { + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI; + }*/ + + return ret; +err: + info("%s: failed=%d", __func__, ret); + return ret; +} + +static int rtl2832_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + *snr = 0; + return 0; +} + +static int rtl2832_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + *ber = 0; + return 0; +} + +static int rtl2832_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + *ucblocks = 0; + return 0; +} + + +static int rtl2832_read_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + *strength = 0; + return 0; +} + +static struct dvb_frontend_ops rtl2832_ops; + +static void rtl2832_release(struct dvb_frontend *fe) +{ + struct rtl2832_priv *priv = fe->demodulator_priv; + + dbg("%s", __func__); + kfree(priv); +} + +struct dvb_frontend *rtl2832_attach(const struct rtl2832_config *cfg, + struct i2c_adapter *i2c) +{ + struct rtl2832_priv *priv = NULL; + int ret = 0; + u8 tmp; + + dbg("%s", __func__); + + /* allocate memory for the internal state */ + priv = kzalloc(sizeof(struct rtl2832_priv), GFP_KERNEL); + if (priv == NULL) + goto err; + + /* setup the priv */ + priv->i2c = i2c; + priv->tuner = cfg->tuner; + memcpy(&priv->cfg, cfg, sizeof(struct rtl2832_config)); + + /* check if the demod is there */ + ret = rtl2832_rd_reg(priv, 0x00, 0x0, &tmp); + if (ret) + goto err; + + /* create dvb_frontend */ + memcpy(&priv->fe.ops, &rtl2832_ops, sizeof(struct dvb_frontend_ops)); + priv->fe.demodulator_priv = priv; + + /* TODO implement sleep mode */ + priv->sleeping = true; + + return &priv->fe; +err: + dbg("%s: failed=%d", __func__, ret); + kfree(priv); + return NULL; +} +EXPORT_SYMBOL(rtl2832_attach); + +static struct dvb_frontend_ops rtl2832_ops = { + .delsys = { SYS_DVBT }, + .info = { + .name = "Realtek RTL2832 (DVB-T)", + .frequency_min = 174000000, + .frequency_max = 862000000, + .frequency_stepsize = 166667, + .caps = FE_CAN_FEC_1_2 | + FE_CAN_FEC_2_3 | + FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | + FE_CAN_FEC_7_8 | + FE_CAN_FEC_AUTO | + FE_CAN_QPSK | + FE_CAN_QAM_16 | + FE_CAN_QAM_64 | + FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_HIERARCHY_AUTO | + FE_CAN_RECOVER | + FE_CAN_MUTE_TS + }, + + .release = rtl2832_release, + + .init = rtl2832_init, + .sleep = rtl2832_sleep, + + .get_tune_settings = rtl2832_get_tune_settings, + + .set_frontend = rtl2832_set_frontend, + + .read_status = rtl2832_read_status, + .read_snr = rtl2832_read_snr, + .read_ber = rtl2832_read_ber, + .read_ucblocks = rtl2832_read_ucblocks, + .read_signal_strength = rtl2832_read_signal_strength, + .i2c_gate_ctrl = rtl2832_i2c_gate_ctrl, +}; + +MODULE_AUTHOR("Thomas Mair "); +MODULE_DESCRIPTION("Realtek RTL2832 DVB-T demodulator driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("0.5"); diff --git a/drivers/media/dvb/frontends/rtl2832.h b/drivers/media/dvb/frontends/rtl2832.h new file mode 100644 index 0000000..d94dc9a --- /dev/null +++ b/drivers/media/dvb/frontends/rtl2832.h @@ -0,0 +1,74 @@ +/* + * Realtek RTL2832 DVB-T demodulator driver + * + * Copyright (C) 2012 Thomas Mair + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef RTL2832_H +#define RTL2832_H + +#include + +struct rtl2832_config { + /* + * Demodulator I2C address. + */ + u8 i2c_addr; + + /* + * Xtal frequency. + * Hz + * 4000000, 16000000, 25000000, 28800000 + */ + u32 xtal; + + /* + * IFs for all used modes. + * Hz + * 4570000, 4571429, 36000000, 36125000, 36166667, 44000000 + */ + u32 if_dvbt; + + /* + */ + u8 tuner; +}; + + +#if defined(CONFIG_DVB_RTL2832) || \ + (defined(CONFIG_DVB_RTL2832_MODULE) && defined(MODULE)) +extern struct dvb_frontend *rtl2832_attach( + const struct rtl2832_config *cfg, + struct i2c_adapter *i2c +); + +extern struct i2c_adapter *rtl2832_get_tuner_i2c_adapter( + struct dvb_frontend *fe +); +#else +static inline struct dvb_frontend *rtl2832_attach( + const struct rtl2832_config *config, + struct i2c_adapter *i2c +) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + + +#endif /* RTL2832_H */ diff --git a/drivers/media/dvb/frontends/rtl2832_priv.h b/drivers/media/dvb/frontends/rtl2832_priv.h new file mode 100644 index 0000000..0ce9502 --- /dev/null +++ b/drivers/media/dvb/frontends/rtl2832_priv.h @@ -0,0 +1,260 @@ +/* + * Realtek RTL2832 DVB-T demodulator driver + * + * Copyright (C) 2012 Thomas Mair + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef RTL2832_PRIV_H +#define RTL2832_PRIV_H + +#include "dvb_frontend.h" +#include "rtl2832.h" + +#define LOG_PREFIX "rtl2832" + +#undef dbg +#define dbg(f, arg...) \ +do { \ + if (rtl2832_debug) \ + printk(KERN_INFO LOG_PREFIX": " f "\n" , ## arg); \ +} while (0) +#undef err +#define err(f, arg...) printk(KERN_ERR LOG_PREFIX": " f "\n" , ## arg) +#undef info +#define info(f, arg...) printk(KERN_INFO LOG_PREFIX": " f "\n" , ## arg) +#undef warn +#define warn(f, arg...) printk(KERN_WARNING LOG_PREFIX": " f "\n" , ## arg) + +struct rtl2832_priv { + struct i2c_adapter *i2c; + struct dvb_frontend fe; + struct rtl2832_config cfg; + + bool i2c_gate_state; + bool sleeping; + + u8 tuner; + u8 page; /* active register page */ +}; + +struct rtl2832_reg_entry { + u8 page; + u8 start_address; + u8 msb; + u8 lsb; +}; + +struct rtl2832_reg_value { + int reg; + u32 value; +}; + + +/* Demod register bit names */ +enum DVBT_REG_BIT_NAME { + DVBT_SOFT_RST, + DVBT_IIC_REPEAT, + DVBT_TR_WAIT_MIN_8K, + DVBT_RSD_BER_FAIL_VAL, + DVBT_EN_BK_TRK, + DVBT_REG_PI, + DVBT_REG_PFREQ_1_0, + DVBT_PD_DA8, + DVBT_LOCK_TH, + DVBT_BER_PASS_SCAL, + DVBT_CE_FFSM_BYPASS, + DVBT_ALPHAIIR_N, + DVBT_ALPHAIIR_DIF, + DVBT_EN_TRK_SPAN, + DVBT_LOCK_TH_LEN, + DVBT_CCI_THRE, + DVBT_CCI_MON_SCAL, + DVBT_CCI_M0, + DVBT_CCI_M1, + DVBT_CCI_M2, + DVBT_CCI_M3, + DVBT_SPEC_INIT_0, + DVBT_SPEC_INIT_1, + DVBT_SPEC_INIT_2, + DVBT_AD_EN_REG, + DVBT_AD_EN_REG1, + DVBT_EN_BBIN, + DVBT_MGD_THD0, + DVBT_MGD_THD1, + DVBT_MGD_THD2, + DVBT_MGD_THD3, + DVBT_MGD_THD4, + DVBT_MGD_THD5, + DVBT_MGD_THD6, + DVBT_MGD_THD7, + DVBT_EN_CACQ_NOTCH, + DVBT_AD_AV_REF, + DVBT_PIP_ON, + DVBT_SCALE1_B92, + DVBT_SCALE1_B93, + DVBT_SCALE1_BA7, + DVBT_SCALE1_BA9, + DVBT_SCALE1_BAA, + DVBT_SCALE1_BAB, + DVBT_SCALE1_BAC, + DVBT_SCALE1_BB0, + DVBT_SCALE1_BB1, + DVBT_KB_P1, + DVBT_KB_P2, + DVBT_KB_P3, + DVBT_OPT_ADC_IQ, + DVBT_AD_AVI, + DVBT_AD_AVQ, + DVBT_K1_CR_STEP12, + DVBT_TRK_KS_P2, + DVBT_TRK_KS_I2, + DVBT_TR_THD_SET2, + DVBT_TRK_KC_P2, + DVBT_TRK_KC_I2, + DVBT_CR_THD_SET2, + DVBT_PSET_IFFREQ, + DVBT_SPEC_INV, + DVBT_BW_INDEX, + DVBT_RSAMP_RATIO, + DVBT_CFREQ_OFF_RATIO, + DVBT_FSM_STAGE, + DVBT_RX_CONSTEL, + DVBT_RX_HIER, + DVBT_RX_C_RATE_LP, + DVBT_RX_C_RATE_HP, + DVBT_GI_IDX, + DVBT_FFT_MODE_IDX, + DVBT_RSD_BER_EST, + DVBT_CE_EST_EVM, + DVBT_RF_AGC_VAL, + DVBT_IF_AGC_VAL, + DVBT_DAGC_VAL, + DVBT_SFREQ_OFF, + DVBT_CFREQ_OFF, + DVBT_POLAR_RF_AGC, + DVBT_POLAR_IF_AGC, + DVBT_AAGC_HOLD, + DVBT_EN_RF_AGC, + DVBT_EN_IF_AGC, + DVBT_IF_AGC_MIN, + DVBT_IF_AGC_MAX, + DVBT_RF_AGC_MIN, + DVBT_RF_AGC_MAX, + DVBT_IF_AGC_MAN, + DVBT_IF_AGC_MAN_VAL, + DVBT_RF_AGC_MAN, + DVBT_RF_AGC_MAN_VAL, + DVBT_DAGC_TRG_VAL, + DVBT_AGC_TARG_VAL, + DVBT_LOOP_GAIN_3_0, + DVBT_LOOP_GAIN_4, + DVBT_VTOP, + DVBT_KRF, + DVBT_AGC_TARG_VAL_0, + DVBT_AGC_TARG_VAL_8_1, + DVBT_AAGC_LOOP_GAIN, + DVBT_LOOP_GAIN2_3_0, + DVBT_LOOP_GAIN2_4, + DVBT_LOOP_GAIN3, + DVBT_VTOP1, + DVBT_VTOP2, + DVBT_VTOP3, + DVBT_KRF1, + DVBT_KRF2, + DVBT_KRF3, + DVBT_KRF4, + DVBT_EN_GI_PGA, + DVBT_THD_LOCK_UP, + DVBT_THD_LOCK_DW, + DVBT_THD_UP1, + DVBT_THD_DW1, + DVBT_INTER_CNT_LEN, + DVBT_GI_PGA_STATE, + DVBT_EN_AGC_PGA, + DVBT_CKOUTPAR, + DVBT_CKOUT_PWR, + DVBT_SYNC_DUR, + DVBT_ERR_DUR, + DVBT_SYNC_LVL, + DVBT_ERR_LVL, + DVBT_VAL_LVL, + DVBT_SERIAL, + DVBT_SER_LSB, + DVBT_CDIV_PH0, + DVBT_CDIV_PH1, + DVBT_MPEG_IO_OPT_2_2, + DVBT_MPEG_IO_OPT_1_0, + DVBT_CKOUTPAR_PIP, + DVBT_CKOUT_PWR_PIP, + DVBT_SYNC_LVL_PIP, + DVBT_ERR_LVL_PIP, + DVBT_VAL_LVL_PIP, + DVBT_CKOUTPAR_PID, + DVBT_CKOUT_PWR_PID, + DVBT_SYNC_LVL_PID, + DVBT_ERR_LVL_PID, + DVBT_VAL_LVL_PID, + DVBT_SM_PASS, + DVBT_UPDATE_REG_2, + DVBT_BTHD_P3, + DVBT_BTHD_D3, + DVBT_FUNC4_REG0, + DVBT_FUNC4_REG1, + DVBT_FUNC4_REG2, + DVBT_FUNC4_REG3, + DVBT_FUNC4_REG4, + DVBT_FUNC4_REG5, + DVBT_FUNC4_REG6, + DVBT_FUNC4_REG7, + DVBT_FUNC4_REG8, + DVBT_FUNC4_REG9, + DVBT_FUNC4_REG10, + DVBT_FUNC5_REG0, + DVBT_FUNC5_REG1, + DVBT_FUNC5_REG2, + DVBT_FUNC5_REG3, + DVBT_FUNC5_REG4, + DVBT_FUNC5_REG5, + DVBT_FUNC5_REG6, + DVBT_FUNC5_REG7, + DVBT_FUNC5_REG8, + DVBT_FUNC5_REG9, + DVBT_FUNC5_REG10, + DVBT_FUNC5_REG11, + DVBT_FUNC5_REG12, + DVBT_FUNC5_REG13, + DVBT_FUNC5_REG14, + DVBT_FUNC5_REG15, + DVBT_FUNC5_REG16, + DVBT_FUNC5_REG17, + DVBT_FUNC5_REG18, + DVBT_AD7_SETTING, + DVBT_RSSI_R, + DVBT_ACI_DET_IND, + DVBT_REG_MON, + DVBT_REG_MONSEL, + DVBT_REG_GPE, + DVBT_REG_GPO, + DVBT_REG_4MSEL, + DVBT_TEST_REG_1, + DVBT_TEST_REG_2, + DVBT_TEST_REG_3, + DVBT_TEST_REG_4, + DVBT_REG_BIT_NAME_ITEM_TERMINATOR, +}; + +#endif /* RTL2832_PRIV_H */ diff --git a/drivers/media/dvb/frontends/s5h1420.c b/drivers/media/dvb/frontends/s5h1420.c index 2322257..e2fec9e 100644 --- a/drivers/media/dvb/frontends/s5h1420.c +++ b/drivers/media/dvb/frontends/s5h1420.c @@ -634,7 +634,6 @@ static int s5h1420_set_frontend(struct dvb_frontend *fe) struct s5h1420_state* state = fe->demodulator_priv; int frequency_delta; struct dvb_frontend_tune_settings fesettings; - uint8_t clock_setting; dprintk("enter %s\n", __func__); @@ -679,25 +678,6 @@ static int s5h1420_set_frontend(struct dvb_frontend *fe) else state->fclk = 44000000; - /* Clock */ - switch (state->fclk) { - default: - case 88000000: - clock_setting = 80; - break; - case 86000000: - clock_setting = 78; - break; - case 80000000: - clock_setting = 72; - break; - case 59000000: - clock_setting = 51; - break; - case 44000000: - clock_setting = 36; - break; - } dprintk("pll01: %d, ToneFreq: %d\n", state->fclk/1000000 - 8, (state->fclk + (TONE_FREQ * 32) - 1) / (TONE_FREQ * 32)); s5h1420_writereg(state, PLL01, state->fclk/1000000 - 8); s5h1420_writereg(state, PLL02, 0x40); diff --git a/drivers/media/dvb/frontends/stb0899_drv.c b/drivers/media/dvb/frontends/stb0899_drv.c index 8b0dc74..5d7f8a9 100644 --- a/drivers/media/dvb/frontends/stb0899_drv.c +++ b/drivers/media/dvb/frontends/stb0899_drv.c @@ -1129,7 +1129,6 @@ static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber) struct stb0899_internal *internal = &state->internal; u8 lsb, msb; - u32 i; *ber = 0; @@ -1137,14 +1136,9 @@ static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber) case SYS_DVBS: case SYS_DSS: if (internal->lock) { - /* average 5 BER values */ - for (i = 0; i < 5; i++) { - msleep(100); - lsb = stb0899_read_reg(state, STB0899_ECNT1L); - msb = stb0899_read_reg(state, STB0899_ECNT1M); - *ber += MAKEWORD16(msb, lsb); - } - *ber /= 5; + lsb = stb0899_read_reg(state, STB0899_ECNT1L); + msb = stb0899_read_reg(state, STB0899_ECNT1M); + *ber = MAKEWORD16(msb, lsb); /* Viterbi Check */ if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) { /* Error Rate */ @@ -1157,13 +1151,9 @@ static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber) break; case SYS_DVBS2: if (internal->lock) { - /* Average 5 PER values */ - for (i = 0; i < 5; i++) { - msleep(100); - lsb = stb0899_read_reg(state, STB0899_ECNT1L); - msb = stb0899_read_reg(state, STB0899_ECNT1M); - *ber += MAKEWORD16(msb, lsb); - } + lsb = stb0899_read_reg(state, STB0899_ECNT1L); + msb = stb0899_read_reg(state, STB0899_ECNT1M); + *ber = MAKEWORD16(msb, lsb); /* ber = ber * 10 ^ 7 */ *ber *= 10000000; *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl)))); diff --git a/drivers/media/dvb/frontends/stv0367.c b/drivers/media/dvb/frontends/stv0367.c index fdd20c7..2a8aaeb 100644 --- a/drivers/media/dvb/frontends/stv0367.c +++ b/drivers/media/dvb/frontends/stv0367.c @@ -1584,7 +1584,7 @@ static int stv0367ter_algo(struct dvb_frontend *fe) struct stv0367ter_state *ter_state = state->ter_state; int offset = 0, tempo = 0; u8 u_var; - u8 /*constell,*/ counter, tps_rcvd[2]; + u8 /*constell,*/ counter; s8 step; s32 timing_offset = 0; u32 trl_nomrate = 0, InternalFreq = 0, temp = 0; @@ -1709,9 +1709,6 @@ static int stv0367ter_algo(struct dvb_frontend *fe) return 0; ter_state->state = FE_TER_LOCKOK; - /* update results */ - tps_rcvd[0] = stv0367_readreg(state, R367TER_TPS_RCVD2); - tps_rcvd[1] = stv0367_readreg(state, R367TER_TPS_RCVD3); ter_state->mode = stv0367_readbits(state, F367TER_SYR_MODE); ter_state->guard = stv0367_readbits(state, F367TER_SYR_GUARD); diff --git a/drivers/media/dvb/frontends/stv090x.c b/drivers/media/dvb/frontends/stv090x.c index d79e69f..ea86a56 100644 --- a/drivers/media/dvb/frontends/stv090x.c +++ b/drivers/media/dvb/frontends/stv090x.c @@ -3172,7 +3172,7 @@ static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state) enum stv090x_signal_state signal_state = STV090x_NOCARRIER; u32 reg; s32 agc1_power, power_iq = 0, i; - int lock = 0, low_sr = 0, no_signal = 0; + int lock = 0, low_sr = 0; reg = STV090x_READ_DEMOD(state, TSCFGH); STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */ @@ -3413,7 +3413,7 @@ static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state) goto err; } else { signal_state = STV090x_NODATA; - no_signal = stv090x_chk_signal(state); + stv090x_chk_signal(state); } } return signal_state; diff --git a/drivers/media/dvb/frontends/tda10071.c b/drivers/media/dvb/frontends/tda10071.c index c21bc92..703c3d0 100644 --- a/drivers/media/dvb/frontends/tda10071.c +++ b/drivers/media/dvb/frontends/tda10071.c @@ -20,10 +20,6 @@ #include "tda10071_priv.h" -int tda10071_debug; -module_param_named(debug, tda10071_debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - static struct dvb_frontend_ops tda10071_ops; /* write multiple registers */ @@ -48,7 +44,8 @@ static int tda10071_wr_regs(struct tda10071_priv *priv, u8 reg, u8 *val, if (ret == 1) { ret = 0; } else { - warn("i2c wr failed=%d reg=%02x len=%d", ret, reg, len); + dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%02x " \ + "len=%d\n", KBUILD_MODNAME, ret, reg, len); ret = -EREMOTEIO; } return ret; @@ -79,7 +76,8 @@ static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val, memcpy(val, buf, len); ret = 0; } else { - warn("i2c rd failed=%d reg=%02x len=%d", ret, reg, len); + dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%02x " \ + "len=%d\n", KBUILD_MODNAME, ret, reg, len); ret = -EREMOTEIO; } return ret; @@ -170,7 +168,7 @@ static int tda10071_cmd_execute(struct tda10071_priv *priv, usleep_range(200, 5000); } - dbg("%s: loop=%d", __func__, i); + dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i); if (i == 0) { ret = -ETIMEDOUT; @@ -179,7 +177,7 @@ static int tda10071_cmd_execute(struct tda10071_priv *priv, return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -196,7 +194,8 @@ static int tda10071_set_tone(struct dvb_frontend *fe, goto error; } - dbg("%s: tone_mode=%d", __func__, fe_sec_tone_mode); + dev_dbg(&priv->i2c->dev, "%s: tone_mode=%d\n", __func__, + fe_sec_tone_mode); switch (fe_sec_tone_mode) { case SEC_TONE_ON: @@ -206,24 +205,25 @@ static int tda10071_set_tone(struct dvb_frontend *fe, tone = 0; break; default: - dbg("%s: invalid fe_sec_tone_mode", __func__); + dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_tone_mode\n", + __func__); ret = -EINVAL; goto error; } - cmd.args[0x00] = CMD_LNB_PCB_CONFIG; - cmd.args[0x01] = 0; - cmd.args[0x02] = 0x00; - cmd.args[0x03] = 0x00; - cmd.args[0x04] = tone; - cmd.len = 0x05; + cmd.args[0] = CMD_LNB_PCB_CONFIG; + cmd.args[1] = 0; + cmd.args[2] = 0x00; + cmd.args[3] = 0x00; + cmd.args[4] = tone; + cmd.len = 5; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -240,7 +240,7 @@ static int tda10071_set_voltage(struct dvb_frontend *fe, goto error; } - dbg("%s: voltage=%d", __func__, fe_sec_voltage); + dev_dbg(&priv->i2c->dev, "%s: voltage=%d\n", __func__, fe_sec_voltage); switch (fe_sec_voltage) { case SEC_VOLTAGE_13: @@ -253,22 +253,23 @@ static int tda10071_set_voltage(struct dvb_frontend *fe, voltage = 0; break; default: - dbg("%s: invalid fe_sec_voltage", __func__); + dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_voltage\n", + __func__); ret = -EINVAL; goto error; }; - cmd.args[0x00] = CMD_LNB_SET_DC_LEVEL; - cmd.args[0x01] = 0; - cmd.args[0x02] = voltage; - cmd.len = 0x03; + cmd.args[0] = CMD_LNB_SET_DC_LEVEL; + cmd.args[1] = 0; + cmd.args[2] = voltage; + cmd.len = 3; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -285,9 +286,10 @@ static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe, goto error; } - dbg("%s: msg_len=%d", __func__, diseqc_cmd->msg_len); + dev_dbg(&priv->i2c->dev, "%s: msg_len=%d\n", __func__, + diseqc_cmd->msg_len); - if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 16) { + if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) { ret = -EINVAL; goto error; } @@ -301,7 +303,7 @@ static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe, usleep_range(10000, 20000); } - dbg("%s: loop=%d", __func__, i); + dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i); if (i == 0) { ret = -ETIMEDOUT; @@ -312,22 +314,22 @@ static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe, if (ret) goto error; - cmd.args[0x00] = CMD_LNB_SEND_DISEQC; - cmd.args[0x01] = 0; - cmd.args[0x02] = 0; - cmd.args[0x03] = 0; - cmd.args[0x04] = 2; - cmd.args[0x05] = 0; - cmd.args[0x06] = diseqc_cmd->msg_len; - memcpy(&cmd.args[0x07], diseqc_cmd->msg, diseqc_cmd->msg_len); - cmd.len = 0x07 + diseqc_cmd->msg_len; + cmd.args[0] = CMD_LNB_SEND_DISEQC; + cmd.args[1] = 0; + cmd.args[2] = 0; + cmd.args[3] = 0; + cmd.args[4] = 2; + cmd.args[5] = 0; + cmd.args[6] = diseqc_cmd->msg_len; + memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len); + cmd.len = 7 + diseqc_cmd->msg_len; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -344,7 +346,7 @@ static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe, goto error; } - dbg("%s:", __func__); + dev_dbg(&priv->i2c->dev, "%s:\n", __func__); /* wait LNB RX */ for (i = 500, tmp = 0; i && !tmp; i--) { @@ -355,7 +357,7 @@ static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe, usleep_range(10000, 20000); } - dbg("%s: loop=%d", __func__, i); + dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i); if (i == 0) { ret = -ETIMEDOUT; @@ -372,9 +374,9 @@ static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe, reply->msg_len = sizeof(reply->msg); /* truncate API max */ /* read reply */ - cmd.args[0x00] = CMD_LNB_UPDATE_REPLY; - cmd.args[0x01] = 0; - cmd.len = 0x02; + cmd.args[0] = CMD_LNB_UPDATE_REPLY; + cmd.args[1] = 0; + cmd.len = 2; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -385,7 +387,7 @@ static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe, return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -402,7 +404,8 @@ static int tda10071_diseqc_send_burst(struct dvb_frontend *fe, goto error; } - dbg("%s: fe_sec_mini_cmd=%d", __func__, fe_sec_mini_cmd); + dev_dbg(&priv->i2c->dev, "%s: fe_sec_mini_cmd=%d\n", __func__, + fe_sec_mini_cmd); switch (fe_sec_mini_cmd) { case SEC_MINI_A: @@ -412,7 +415,8 @@ static int tda10071_diseqc_send_burst(struct dvb_frontend *fe, burst = 1; break; default: - dbg("%s: invalid fe_sec_mini_cmd", __func__); + dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_mini_cmd\n", + __func__); ret = -EINVAL; goto error; } @@ -426,7 +430,7 @@ static int tda10071_diseqc_send_burst(struct dvb_frontend *fe, usleep_range(10000, 20000); } - dbg("%s: loop=%d", __func__, i); + dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i); if (i == 0) { ret = -ETIMEDOUT; @@ -437,17 +441,17 @@ static int tda10071_diseqc_send_burst(struct dvb_frontend *fe, if (ret) goto error; - cmd.args[0x00] = CMD_LNB_SEND_TONEBURST; - cmd.args[0x01] = 0; - cmd.args[0x02] = burst; - cmd.len = 0x03; + cmd.args[0] = CMD_LNB_SEND_TONEBURST; + cmd.args[1] = 0; + cmd.args[2] = burst; + cmd.len = 3; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -481,7 +485,7 @@ static int tda10071_read_status(struct dvb_frontend *fe, fe_status_t *status) return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -506,7 +510,7 @@ static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr) return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -523,9 +527,9 @@ static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength) goto error; } - cmd.args[0x00] = CMD_GET_AGCACC; - cmd.args[0x01] = 0; - cmd.len = 0x02; + cmd.args[0] = CMD_GET_AGCACC; + cmd.args[1] = 0; + cmd.len = 2; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -545,7 +549,7 @@ static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength) return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -583,17 +587,18 @@ static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber) goto error; if (priv->meas_count[i] == tmp) { - dbg("%s: meas not ready=%02x", __func__, tmp); + dev_dbg(&priv->i2c->dev, "%s: meas not ready=%02x\n", __func__, + tmp); *ber = priv->ber; return 0; } else { priv->meas_count[i] = tmp; } - cmd.args[0x00] = CMD_BER_UPDATE_COUNTERS; - cmd.args[0x01] = 0; - cmd.args[0x02] = i; - cmd.len = 0x03; + cmd.args[0] = CMD_BER_UPDATE_COUNTERS; + cmd.args[1] = 0; + cmd.args[2] = i; + cmd.len = 3; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -612,7 +617,7 @@ static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber) return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -632,7 +637,7 @@ static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -644,10 +649,11 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) int ret, i; u8 mode, rolloff, pilot, inversion, div; - dbg("%s: delivery_system=%d modulation=%d frequency=%d " \ - "symbol_rate=%d inversion=%d pilot=%d rolloff=%d", __func__, - c->delivery_system, c->modulation, c->frequency, - c->symbol_rate, c->inversion, c->pilot, c->rolloff); + dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d modulation=%d " \ + "frequency=%d symbol_rate=%d inversion=%d pilot=%d " \ + "rolloff=%d\n", __func__, c->delivery_system, c->modulation, + c->frequency, c->symbol_rate, c->inversion, c->pilot, + c->rolloff); priv->delivery_system = SYS_UNDEFINED; @@ -669,7 +675,7 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) inversion = 3; break; default: - dbg("%s: invalid inversion", __func__); + dev_dbg(&priv->i2c->dev, "%s: invalid inversion\n", __func__); ret = -EINVAL; goto error; } @@ -692,7 +698,8 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) break; case ROLLOFF_AUTO: default: - dbg("%s: invalid rolloff", __func__); + dev_dbg(&priv->i2c->dev, "%s: invalid rolloff\n", + __func__); ret = -EINVAL; goto error; } @@ -708,13 +715,15 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) pilot = 2; break; default: - dbg("%s: invalid pilot", __func__); + dev_dbg(&priv->i2c->dev, "%s: invalid pilot\n", + __func__); ret = -EINVAL; goto error; } break; default: - dbg("%s: invalid delivery_system", __func__); + dev_dbg(&priv->i2c->dev, "%s: invalid delivery_system\n", + __func__); ret = -EINVAL; goto error; } @@ -724,13 +733,15 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) c->modulation == TDA10071_MODCOD[i].modulation && c->fec_inner == TDA10071_MODCOD[i].fec) { mode = TDA10071_MODCOD[i].val; - dbg("%s: mode found=%02x", __func__, mode); + dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n", + __func__, mode); break; } } if (mode == 0xff) { - dbg("%s: invalid parameter combination", __func__); + dev_dbg(&priv->i2c->dev, "%s: invalid parameter combination\n", + __func__); ret = -EINVAL; goto error; } @@ -748,22 +759,22 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) if (ret) goto error; - cmd.args[0x00] = CMD_CHANGE_CHANNEL; - cmd.args[0x01] = 0; - cmd.args[0x02] = mode; - cmd.args[0x03] = (c->frequency >> 16) & 0xff; - cmd.args[0x04] = (c->frequency >> 8) & 0xff; - cmd.args[0x05] = (c->frequency >> 0) & 0xff; - cmd.args[0x06] = ((c->symbol_rate / 1000) >> 8) & 0xff; - cmd.args[0x07] = ((c->symbol_rate / 1000) >> 0) & 0xff; - cmd.args[0x08] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff; - cmd.args[0x09] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff; - cmd.args[0x0a] = rolloff; - cmd.args[0x0b] = inversion; - cmd.args[0x0c] = pilot; - cmd.args[0x0d] = 0x00; - cmd.args[0x0e] = 0x00; - cmd.len = 0x0f; + cmd.args[0] = CMD_CHANGE_CHANNEL; + cmd.args[1] = 0; + cmd.args[2] = mode; + cmd.args[3] = (c->frequency >> 16) & 0xff; + cmd.args[4] = (c->frequency >> 8) & 0xff; + cmd.args[5] = (c->frequency >> 0) & 0xff; + cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff; + cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff; + cmd.args[8] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff; + cmd.args[9] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff; + cmd.args[10] = rolloff; + cmd.args[11] = inversion; + cmd.args[12] = pilot; + cmd.args[13] = 0x00; + cmd.args[14] = 0x00; + cmd.len = 15; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -772,7 +783,7 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -829,7 +840,7 @@ static int tda10071_get_frontend(struct dvb_frontend *fe) return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -915,10 +926,10 @@ static int tda10071_init(struct dvb_frontend *fe) goto error; } - cmd.args[0x00] = CMD_SET_SLEEP_MODE; - cmd.args[0x01] = 0; - cmd.args[0x02] = 0; - cmd.len = 0x03; + cmd.args[0] = CMD_SET_SLEEP_MODE; + cmd.args[1] = 0; + cmd.args[2] = 0; + cmd.len = 3; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -929,10 +940,11 @@ static int tda10071_init(struct dvb_frontend *fe) /* request the firmware, this will block and timeout */ ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent); if (ret) { - err("did not find the firmware file. (%s) " - "Please see linux/Documentation/dvb/ for more" \ - " details on firmware-problems. (%d)", - fw_file, ret); + dev_err(&priv->i2c->dev, "%s: did not find the " \ + "firmware file. (%s) Please see " \ + "linux/Documentation/dvb/ for more " \ + "details on firmware-problems. (%d)\n", + KBUILD_MODNAME, fw_file, ret); goto error; } @@ -961,10 +973,11 @@ static int tda10071_init(struct dvb_frontend *fe) if (ret) goto error_release_firmware; - info("found a '%s' in cold state, will try to load a firmware", - tda10071_ops.info.name); - - info("downloading firmware from file '%s'", fw_file); + dev_info(&priv->i2c->dev, "%s: found a '%s' in cold state, " \ + "will try to load a firmware\n", KBUILD_MODNAME, + tda10071_ops.info.name); + dev_info(&priv->i2c->dev, "%s: downloading firmware from " \ + "file '%s'\n", KBUILD_MODNAME, fw_file); /* do not download last byte */ fw_size = fw->size - 1; @@ -978,7 +991,9 @@ static int tda10071_init(struct dvb_frontend *fe) ret = tda10071_wr_regs(priv, 0xfa, (u8 *) &fw->data[fw_size - remaining], len); if (ret) { - err("firmware download failed=%d", ret); + dev_err(&priv->i2c->dev, "%s: firmware " \ + "download failed=%d\n", + KBUILD_MODNAME, ret); if (ret) goto error_release_firmware; } @@ -1002,15 +1017,16 @@ static int tda10071_init(struct dvb_frontend *fe) goto error; if (tmp) { - info("firmware did not run"); + dev_info(&priv->i2c->dev, "%s: firmware did not run\n", + KBUILD_MODNAME); ret = -EFAULT; goto error; } else { priv->warm = 1; } - cmd.args[0x00] = CMD_GET_FW_VERSION; - cmd.len = 0x01; + cmd.args[0] = CMD_GET_FW_VERSION; + cmd.len = 1; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -1019,54 +1035,55 @@ static int tda10071_init(struct dvb_frontend *fe) if (ret) goto error; - info("firmware version %d.%d.%d.%d", - buf[0], buf[1], buf[2], buf[3]); - info("found a '%s' in warm state.", tda10071_ops.info.name); + dev_info(&priv->i2c->dev, "%s: firmware version %d.%d.%d.%d\n", + KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]); + dev_info(&priv->i2c->dev, "%s: found a '%s' in warm state\n", + KBUILD_MODNAME, tda10071_ops.info.name); ret = tda10071_rd_regs(priv, 0x81, buf, 2); if (ret) goto error; - cmd.args[0x00] = CMD_DEMOD_INIT; - cmd.args[0x01] = ((priv->cfg.xtal / 1000) >> 8) & 0xff; - cmd.args[0x02] = ((priv->cfg.xtal / 1000) >> 0) & 0xff; - cmd.args[0x03] = buf[0]; - cmd.args[0x04] = buf[1]; - cmd.args[0x05] = priv->cfg.pll_multiplier; - cmd.args[0x06] = priv->cfg.spec_inv; - cmd.args[0x07] = 0x00; - cmd.len = 0x08; + cmd.args[0] = CMD_DEMOD_INIT; + cmd.args[1] = ((priv->cfg.xtal / 1000) >> 8) & 0xff; + cmd.args[2] = ((priv->cfg.xtal / 1000) >> 0) & 0xff; + cmd.args[3] = buf[0]; + cmd.args[4] = buf[1]; + cmd.args[5] = priv->cfg.pll_multiplier; + cmd.args[6] = priv->cfg.spec_inv; + cmd.args[7] = 0x00; + cmd.len = 8; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; - cmd.args[0x00] = CMD_TUNER_INIT; - cmd.args[0x01] = 0x00; - cmd.args[0x02] = 0x00; - cmd.args[0x03] = 0x00; - cmd.args[0x04] = 0x00; - cmd.args[0x05] = 0x14; - cmd.args[0x06] = 0x00; - cmd.args[0x07] = 0x03; - cmd.args[0x08] = 0x02; - cmd.args[0x09] = 0x02; - cmd.args[0x0a] = 0x00; - cmd.args[0x0b] = 0x00; - cmd.args[0x0c] = 0x00; - cmd.args[0x0d] = 0x00; - cmd.args[0x0e] = 0x00; - cmd.len = 0x0f; + cmd.args[0] = CMD_TUNER_INIT; + cmd.args[1] = 0x00; + cmd.args[2] = 0x00; + cmd.args[3] = 0x00; + cmd.args[4] = 0x00; + cmd.args[5] = 0x14; + cmd.args[6] = 0x00; + cmd.args[7] = 0x03; + cmd.args[8] = 0x02; + cmd.args[9] = 0x02; + cmd.args[10] = 0x00; + cmd.args[11] = 0x00; + cmd.args[12] = 0x00; + cmd.args[13] = 0x00; + cmd.args[14] = 0x00; + cmd.len = 15; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; - cmd.args[0x00] = CMD_MPEG_CONFIG; - cmd.args[0x01] = 0; - cmd.args[0x02] = priv->cfg.ts_mode; - cmd.args[0x03] = 0x00; - cmd.args[0x04] = 0x04; - cmd.args[0x05] = 0x00; - cmd.len = 0x06; + cmd.args[0] = CMD_MPEG_CONFIG; + cmd.args[1] = 0; + cmd.args[2] = priv->cfg.ts_mode; + cmd.args[3] = 0x00; + cmd.args[4] = 0x04; + cmd.args[5] = 0x00; + cmd.len = 6; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -1075,27 +1092,27 @@ static int tda10071_init(struct dvb_frontend *fe) if (ret) goto error; - cmd.args[0x00] = CMD_LNB_CONFIG; - cmd.args[0x01] = 0; - cmd.args[0x02] = 150; - cmd.args[0x03] = 3; - cmd.args[0x04] = 22; - cmd.args[0x05] = 1; - cmd.args[0x06] = 1; - cmd.args[0x07] = 30; - cmd.args[0x08] = 30; - cmd.args[0x09] = 30; - cmd.args[0x0a] = 30; - cmd.len = 0x0b; + cmd.args[0] = CMD_LNB_CONFIG; + cmd.args[1] = 0; + cmd.args[2] = 150; + cmd.args[3] = 3; + cmd.args[4] = 22; + cmd.args[5] = 1; + cmd.args[6] = 1; + cmd.args[7] = 30; + cmd.args[8] = 30; + cmd.args[9] = 30; + cmd.args[10] = 30; + cmd.len = 11; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; - cmd.args[0x00] = CMD_BER_CONTROL; - cmd.args[0x01] = 0; - cmd.args[0x02] = 14; - cmd.args[0x03] = 14; - cmd.len = 0x04; + cmd.args[0] = CMD_BER_CONTROL; + cmd.args[1] = 0; + cmd.args[2] = 14; + cmd.args[3] = 14; + cmd.len = 4; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -1105,7 +1122,7 @@ static int tda10071_init(struct dvb_frontend *fe) error_release_firmware: release_firmware(fw); error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -1132,10 +1149,10 @@ static int tda10071_sleep(struct dvb_frontend *fe) goto error; } - cmd.args[0x00] = CMD_SET_SLEEP_MODE; - cmd.args[0x01] = 0; - cmd.args[0x02] = 1; - cmd.len = 0x03; + cmd.args[0] = CMD_SET_SLEEP_MODE; + cmd.args[1] = 0; + cmd.args[2] = 1; + cmd.len = 3; ret = tda10071_cmd_execute(priv, &cmd); if (ret) goto error; @@ -1149,7 +1166,7 @@ static int tda10071_sleep(struct dvb_frontend *fe) return ret; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); return ret; } @@ -1208,7 +1225,7 @@ struct dvb_frontend *tda10071_attach(const struct tda10071_config *config, return &priv->fe; error: - dbg("%s: failed=%d", __func__, ret); + dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret); kfree(priv); return NULL; } diff --git a/drivers/media/dvb/frontends/tda10071_priv.h b/drivers/media/dvb/frontends/tda10071_priv.h index 93c5e63..0fa85cf 100644 --- a/drivers/media/dvb/frontends/tda10071_priv.h +++ b/drivers/media/dvb/frontends/tda10071_priv.h @@ -25,19 +25,6 @@ #include "tda10071.h" #include -#define LOG_PREFIX "tda10071" - -#undef dbg -#define dbg(f, arg...) \ - if (tda10071_debug) \ - printk(KERN_INFO LOG_PREFIX": " f "\n" , ## arg) -#undef err -#define err(f, arg...) printk(KERN_ERR LOG_PREFIX": " f "\n" , ## arg) -#undef info -#define info(f, arg...) printk(KERN_INFO LOG_PREFIX": " f "\n" , ## arg) -#undef warn -#define warn(f, arg...) printk(KERN_WARNING LOG_PREFIX": " f "\n" , ## arg) - struct tda10071_priv { struct i2c_adapter *i2c; struct dvb_frontend fe; @@ -112,7 +99,7 @@ struct tda10071_reg_val_mask { #define CMD_BER_UPDATE_COUNTERS 0x3f /* firmare command struct */ -#define TDA10071_ARGLEN 0x1e +#define TDA10071_ARGLEN 30 struct tda10071_cmd { u8 args[TDA10071_ARGLEN]; u8 len; diff --git a/drivers/media/dvb/ngene/ngene-cards.c b/drivers/media/dvb/ngene/ngene-cards.c index 7539a5d..72ee8de 100644 --- a/drivers/media/dvb/ngene/ngene-cards.c +++ b/drivers/media/dvb/ngene/ngene-cards.c @@ -217,6 +217,7 @@ static int demod_attach_drxk(struct ngene_channel *chan, memset(&config, 0, sizeof(config)); config.microcode_name = "drxk_a3.mc"; + config.qam_demod_parameter_count = 4; config.adr = 0x29 + (chan->number ^ 2); chan->fe = dvb_attach(drxk_attach, &config, i2c); diff --git a/drivers/media/dvb/siano/smscoreapi.c b/drivers/media/dvb/siano/smscoreapi.c index 7331e84..9cc5554 100644 --- a/drivers/media/dvb/siano/smscoreapi.c +++ b/drivers/media/dvb/siano/smscoreapi.c @@ -276,16 +276,13 @@ static void smscore_notify_clients(struct smscore_device_t *coredev) static int smscore_notify_callbacks(struct smscore_device_t *coredev, struct device *device, int arrival) { - struct list_head *next, *first; + struct smscore_device_notifyee_t *elem; int rc = 0; /* note: must be called under g_deviceslock */ - first = &g_smscore_notifyees; - - for (next = first->next; next != first; next = next->next) { - rc = ((struct smscore_device_notifyee_t *) next)-> - hotplug(coredev, device, arrival); + list_for_each_entry(elem, &g_smscore_notifyees, entry) { + rc = elem->hotplug(coredev, device, arrival); if (rc < 0) break; } @@ -940,29 +937,25 @@ static struct smscore_client_t *smscore_find_client(struct smscore_device_t *coredev, int data_type, int id) { - struct smscore_client_t *client = NULL; - struct list_head *next, *first; + struct list_head *first; + struct smscore_client_t *client; unsigned long flags; - struct list_head *firstid, *nextid; - + struct list_head *firstid; + struct smscore_idlist_t *client_id; spin_lock_irqsave(&coredev->clientslock, flags); first = &coredev->clients; - for (next = first->next; - (next != first) && !client; - next = next->next) { - firstid = &((struct smscore_client_t *)next)->idlist; - for (nextid = firstid->next; - nextid != firstid; - nextid = nextid->next) { - if ((((struct smscore_idlist_t *)nextid)->id == id) && - (((struct smscore_idlist_t *)nextid)->data_type == data_type || - (((struct smscore_idlist_t *)nextid)->data_type == 0))) { - client = (struct smscore_client_t *) next; - break; - } + list_for_each_entry(client, first, entry) { + firstid = &client->idlist; + list_for_each_entry(client_id, firstid, entry) { + if ((client_id->id == id) && + (client_id->data_type == data_type || + (client_id->data_type == 0))) + goto found; } } + client = NULL; +found: spin_unlock_irqrestore(&coredev->clientslock, flags); return client; } diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig index c257da1..8090b87 100644 --- a/drivers/media/radio/Kconfig +++ b/drivers/media/radio/Kconfig @@ -5,6 +5,7 @@ menuconfig RADIO_ADAPTERS bool "Radio Adapters" depends on VIDEO_V4L2 + depends on MEDIA_RADIO_SUPPORT default y ---help--- Say Y here to enable selecting AM/FM radio adapters. @@ -56,6 +57,39 @@ config RADIO_MAXIRADIO To compile this driver as a module, choose M here: the module will be called radio-maxiradio. +config RADIO_SHARK + tristate "Griffin radioSHARK USB radio receiver" + depends on USB && SND + ---help--- + Choose Y here if you have this radio receiver. + + There are 2 versions of this device, this driver is for version 1, + which is white. + + In order to control your radio card, you will need to use programs + that are compatible with the Video For Linux API. Information on + this API and pointers to "v4l" programs may be found at + . + + To compile this driver as a module, choose M here: the + module will be called radio-shark. + +config RADIO_SHARK2 + tristate "Griffin radioSHARK2 USB radio receiver" + depends on USB + ---help--- + Choose Y here if you have this radio receiver. + + There are 2 versions of this device, this driver is for version 2, + which is black. + + In order to control your radio card, you will need to use programs + that are compatible with the Video For Linux API. Information on + this API and pointers to "v4l" programs may be found at + . + + To compile this driver as a module, choose M here: the + module will be called radio-shark2. config I2C_SI4713 tristate "I2C driver for Silicon Labs Si4713 device" diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile index ca8c7d1..c03ce4f 100644 --- a/drivers/media/radio/Makefile +++ b/drivers/media/radio/Makefile @@ -11,6 +11,8 @@ obj-$(CONFIG_RADIO_CADET) += radio-cadet.o obj-$(CONFIG_RADIO_TYPHOON) += radio-typhoon.o obj-$(CONFIG_RADIO_TERRATEC) += radio-terratec.o obj-$(CONFIG_RADIO_MAXIRADIO) += radio-maxiradio.o +obj-$(CONFIG_RADIO_SHARK) += radio-shark.o +obj-$(CONFIG_RADIO_SHARK2) += shark2.o obj-$(CONFIG_RADIO_RTRACK) += radio-aimslab.o obj-$(CONFIG_RADIO_ZOLTRIX) += radio-zoltrix.o obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o @@ -29,4 +31,6 @@ obj-$(CONFIG_RADIO_TIMBERDALE) += radio-timb.o obj-$(CONFIG_RADIO_WL1273) += radio-wl1273.o obj-$(CONFIG_RADIO_WL128X) += wl128x/ +shark2-objs := radio-shark2.o radio-tea5777.o + ccflags-y += -Isound diff --git a/drivers/media/radio/lm7000.h b/drivers/media/radio/lm7000.h new file mode 100644 index 0000000..139cd6b --- /dev/null +++ b/drivers/media/radio/lm7000.h @@ -0,0 +1,43 @@ +#ifndef __LM7000_H +#define __LM7000_H + +/* Sanyo LM7000 tuner chip control + * + * Copyright 2012 Ondrej Zary + * based on radio-aimslab.c by M. Kirkwood + * and radio-sf16fmi.c by M. Kirkwood and Petr Vandrovec + */ + +#define LM7000_DATA (1 << 0) +#define LM7000_CLK (1 << 1) +#define LM7000_CE (1 << 2) + +#define LM7000_FM_100 (0 << 20) +#define LM7000_FM_50 (1 << 20) +#define LM7000_FM_25 (2 << 20) +#define LM7000_BIT_FM (1 << 23) + +static inline void lm7000_set_freq(u32 freq, void *handle, + void (*set_pins)(void *handle, u8 pins)) +{ + int i; + u8 data; + u32 val; + + freq += 171200; /* Add 10.7 MHz IF */ + freq /= 400; /* Convert to 25 kHz units */ + val = freq | LM7000_FM_25 | LM7000_BIT_FM; + /* write the 24-bit register, starting with LSB */ + for (i = 0; i < 24; i++) { + data = val & (1 << i) ? LM7000_DATA : 0; + set_pins(handle, data | LM7000_CE); + udelay(2); + set_pins(handle, data | LM7000_CE | LM7000_CLK); + udelay(2); + set_pins(handle, data | LM7000_CE); + udelay(2); + } + set_pins(handle, 0); +} + +#endif /* __LM7000_H */ diff --git a/drivers/media/radio/radio-aimslab.c b/drivers/media/radio/radio-aimslab.c index 98e0c8c..12c70e8 100644 --- a/drivers/media/radio/radio-aimslab.c +++ b/drivers/media/radio/radio-aimslab.c @@ -37,6 +37,7 @@ #include #include #include "radio-isa.h" +#include "lm7000.h" MODULE_AUTHOR("M. Kirkwood"); MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card."); @@ -72,55 +73,38 @@ static struct radio_isa_card *rtrack_alloc(void) return rt ? &rt->isa : NULL; } -/* The 128+64 on these outb's is to keep the volume stable while tuning. - * Without them, the volume _will_ creep up with each frequency change - * and bit 4 (+16) is to keep the signal strength meter enabled. - */ +#define AIMS_BIT_TUN_CE (1 << 0) +#define AIMS_BIT_TUN_CLK (1 << 1) +#define AIMS_BIT_TUN_DATA (1 << 2) +#define AIMS_BIT_VOL_CE (1 << 3) +#define AIMS_BIT_TUN_STRQ (1 << 4) +/* bit 5 is not connected */ +#define AIMS_BIT_VOL_UP (1 << 6) /* active low */ +#define AIMS_BIT_VOL_DN (1 << 7) /* active low */ -static void send_0_byte(struct radio_isa_card *isa, int on) +void rtrack_set_pins(void *handle, u8 pins) { - outb_p(128+64+16+on+1, isa->io); /* wr-enable + data low */ - outb_p(128+64+16+on+2+1, isa->io); /* clock */ - msleep(1); -} + struct radio_isa_card *isa = handle; + struct rtrack *rt = container_of(isa, struct rtrack, isa); + u8 bits = AIMS_BIT_VOL_DN | AIMS_BIT_VOL_UP | AIMS_BIT_TUN_STRQ; -static void send_1_byte(struct radio_isa_card *isa, int on) -{ - outb_p(128+64+16+on+4+1, isa->io); /* wr-enable+data high */ - outb_p(128+64+16+on+4+2+1, isa->io); /* clock */ - msleep(1); + if (!v4l2_ctrl_g_ctrl(rt->isa.mute)) + bits |= AIMS_BIT_VOL_CE; + + if (pins & LM7000_DATA) + bits |= AIMS_BIT_TUN_DATA; + if (pins & LM7000_CLK) + bits |= AIMS_BIT_TUN_CLK; + if (pins & LM7000_CE) + bits |= AIMS_BIT_TUN_CE; + + outb_p(bits, rt->isa.io); } static int rtrack_s_frequency(struct radio_isa_card *isa, u32 freq) { - int on = v4l2_ctrl_g_ctrl(isa->mute) ? 0 : 8; - int i; - - freq += 171200; /* Add 10.7 MHz IF */ - freq /= 800; /* Convert to 50 kHz units */ - - send_0_byte(isa, on); /* 0: LSB of frequency */ - - for (i = 0; i < 13; i++) /* : frequency bits (1-13) */ - if (freq & (1 << i)) - send_1_byte(isa, on); - else - send_0_byte(isa, on); - - send_0_byte(isa, on); /* 14: test bit - always 0 */ - send_0_byte(isa, on); /* 15: test bit - always 0 */ - - send_0_byte(isa, on); /* 16: band data 0 - always 0 */ - send_0_byte(isa, on); /* 17: band data 1 - always 0 */ - send_0_byte(isa, on); /* 18: band data 2 - always 0 */ - send_0_byte(isa, on); /* 19: time base - always 0 */ - - send_0_byte(isa, on); /* 20: spacing (0 = 25 kHz) */ - send_1_byte(isa, on); /* 21: spacing (1 = 25 kHz) */ - send_0_byte(isa, on); /* 22: spacing (0 = 25 kHz) */ - send_1_byte(isa, on); /* 23: AM/FM (FM = 1, always) */ + lm7000_set_freq(freq, isa, rtrack_set_pins); - outb(0xd0 + on, isa->io); /* volume steady + sigstr */ return 0; } diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c index 16a089f..697a421 100644 --- a/drivers/media/radio/radio-cadet.c +++ b/drivers/media/radio/radio-cadet.c @@ -41,6 +41,9 @@ #include /* outb, outb_p */ #include #include +#include +#include +#include MODULE_AUTHOR("Fred Gleason, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath"); MODULE_DESCRIPTION("A driver for the ADS Cadet AM/FM/RDS radio card."); @@ -61,14 +64,15 @@ module_param(radio_nr, int, 0); struct cadet { struct v4l2_device v4l2_dev; struct video_device vdev; + struct v4l2_ctrl_handler ctrl_handler; int io; - int users; - int curtuner; + bool is_fm_band; + u32 curfreq; int tunestat; int sigstrength; wait_queue_head_t read_queue; struct timer_list readtimer; - __u8 rdsin, rdsout, rdsstat; + u8 rdsin, rdsout, rdsstat; unsigned char rdsbuf[RDS_BUFFER]; struct mutex lock; int reading; @@ -81,9 +85,9 @@ static struct cadet cadet_card; * The V4L API spec does not define any particular unit for the signal * strength value. These values are in microvolts of RF at the tuner's input. */ -static __u16 sigtable[2][4] = { - { 5, 10, 30, 150 }, - { 28, 40, 63, 1000 } +static u16 sigtable[2][4] = { + { 1835, 2621, 4128, 65535 }, + { 2185, 4369, 13107, 65535 }, }; @@ -91,14 +95,12 @@ static int cadet_getstereo(struct cadet *dev) { int ret = V4L2_TUNER_SUB_MONO; - if (dev->curtuner != 0) /* Only FM has stereo capability! */ + if (!dev->is_fm_band) /* Only FM has stereo capability! */ return V4L2_TUNER_SUB_MONO; - mutex_lock(&dev->lock); outb(7, dev->io); /* Select tuner control */ if ((inb(dev->io + 1) & 0x40) == 0) ret = V4L2_TUNER_SUB_STEREO; - mutex_unlock(&dev->lock); return ret; } @@ -111,8 +113,6 @@ static unsigned cadet_gettune(struct cadet *dev) * Prepare for read */ - mutex_lock(&dev->lock); - outb(7, dev->io); /* Select tuner control */ curvol = inb(dev->io + 1); /* Save current volume/mute setting */ outb(0x00, dev->io + 1); /* Ensure WRITE-ENABLE is LOW */ @@ -134,8 +134,6 @@ static unsigned cadet_gettune(struct cadet *dev) * Restore volume/mute setting */ outb(curvol, dev->io + 1); - mutex_unlock(&dev->lock); - return fifo; } @@ -152,20 +150,18 @@ static unsigned cadet_getfreq(struct cadet *dev) /* * Convert to actual frequency */ - if (dev->curtuner == 0) { /* FM */ - test = 12500; - for (i = 0; i < 14; i++) { - if ((fifo & 0x01) != 0) - freq += test; - test = test << 1; - fifo = fifo >> 1; - } - freq -= 10700000; /* IF frequency is 10.7 MHz */ - freq = (freq * 16) / 1000000; /* Make it 1/16 MHz */ + if (!dev->is_fm_band) /* AM */ + return ((fifo & 0x7fff) - 450) * 16; + + test = 12500; + for (i = 0; i < 14; i++) { + if ((fifo & 0x01) != 0) + freq += test; + test = test << 1; + fifo = fifo >> 1; } - if (dev->curtuner == 1) /* AM */ - freq = ((fifo & 0x7fff) - 2010) * 16; - + freq -= 10700000; /* IF frequency is 10.7 MHz */ + freq = (freq * 16) / 1000; /* Make it 1/16 kHz */ return freq; } @@ -174,8 +170,6 @@ static void cadet_settune(struct cadet *dev, unsigned fifo) int i; unsigned test; - mutex_lock(&dev->lock); - outb(7, dev->io); /* Select tuner control */ /* * Write the shift register @@ -194,7 +188,6 @@ static void cadet_settune(struct cadet *dev, unsigned fifo) test = 0x1c | ((fifo >> 23) & 0x02); outb(test, dev->io + 1); } - mutex_unlock(&dev->lock); } static void cadet_setfreq(struct cadet *dev, unsigned freq) @@ -203,13 +196,14 @@ static void cadet_setfreq(struct cadet *dev, unsigned freq) int i, j, test; int curvol; + dev->curfreq = freq; /* * Formulate a fifo command */ fifo = 0; - if (dev->curtuner == 0) { /* FM */ + if (dev->is_fm_band) { /* FM */ test = 102400; - freq = (freq * 1000) / 16; /* Make it kHz */ + freq = freq / 16; /* Make it kHz */ freq += 10700; /* IF is 10700 kHz */ for (i = 0; i < 14; i++) { fifo = fifo << 1; @@ -219,20 +213,17 @@ static void cadet_setfreq(struct cadet *dev, unsigned freq) } test = test >> 1; } - } - if (dev->curtuner == 1) { /* AM */ - fifo = (freq / 16) + 2010; /* Make it kHz */ - fifo |= 0x100000; /* Select AM Band */ + } else { /* AM */ + fifo = (freq / 16) + 450; /* Make it kHz */ + fifo |= 0x100000; /* Select AM Band */ } /* * Save current volume/mute setting */ - mutex_lock(&dev->lock); outb(7, dev->io); /* Select tuner control */ curvol = inb(dev->io + 1); - mutex_unlock(&dev->lock); /* * Tune the card @@ -240,49 +231,24 @@ static void cadet_setfreq(struct cadet *dev, unsigned freq) for (j = 3; j > -1; j--) { cadet_settune(dev, fifo | (j << 16)); - mutex_lock(&dev->lock); outb(7, dev->io); /* Select tuner control */ outb(curvol, dev->io + 1); - mutex_unlock(&dev->lock); msleep(100); cadet_gettune(dev); if ((dev->tunestat & 0x40) == 0) { /* Tuned */ - dev->sigstrength = sigtable[dev->curtuner][j]; - return; + dev->sigstrength = sigtable[dev->is_fm_band][j]; + goto reset_rds; } } dev->sigstrength = 0; +reset_rds: + outb(3, dev->io); + outb(inb(dev->io + 1) & 0x7f, dev->io + 1); } -static int cadet_getvol(struct cadet *dev) -{ - int ret = 0; - - mutex_lock(&dev->lock); - - outb(7, dev->io); /* Select tuner control */ - if ((inb(dev->io + 1) & 0x20) != 0) - ret = 0xffff; - - mutex_unlock(&dev->lock); - return ret; -} - - -static void cadet_setvol(struct cadet *dev, int vol) -{ - mutex_lock(&dev->lock); - outb(7, dev->io); /* Select tuner control */ - if (vol > 0) - outb(0x20, dev->io + 1); - else - outb(0x00, dev->io + 1); - mutex_unlock(&dev->lock); -} - static void cadet_handler(unsigned long data) { struct cadet *dev = (void *)data; @@ -295,7 +261,7 @@ static void cadet_handler(unsigned long data) outb(0x80, dev->io); /* Select RDS fifo */ while ((inb(dev->io) & 0x80) != 0) { dev->rdsbuf[dev->rdsin] = inb(dev->io + 1); - if (dev->rdsin == dev->rdsout) + if (dev->rdsin + 1 == dev->rdsout) printk(KERN_WARNING "cadet: RDS buffer overflow\n"); else dev->rdsin++; @@ -314,11 +280,21 @@ static void cadet_handler(unsigned long data) */ init_timer(&dev->readtimer); dev->readtimer.function = cadet_handler; - dev->readtimer.data = (unsigned long)0; + dev->readtimer.data = data; dev->readtimer.expires = jiffies + msecs_to_jiffies(50); add_timer(&dev->readtimer); } +static void cadet_start_rds(struct cadet *dev) +{ + dev->rdsstat = 1; + outb(0x80, dev->io); /* Select RDS fifo */ + init_timer(&dev->readtimer); + dev->readtimer.function = cadet_handler; + dev->readtimer.data = (unsigned long)dev; + dev->readtimer.expires = jiffies + msecs_to_jiffies(50); + add_timer(&dev->readtimer); +} static ssize_t cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { @@ -327,28 +303,24 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo int i = 0; mutex_lock(&dev->lock); - if (dev->rdsstat == 0) { - dev->rdsstat = 1; - outb(0x80, dev->io); /* Select RDS fifo */ - init_timer(&dev->readtimer); - dev->readtimer.function = cadet_handler; - dev->readtimer.data = (unsigned long)dev; - dev->readtimer.expires = jiffies + msecs_to_jiffies(50); - add_timer(&dev->readtimer); - } + if (dev->rdsstat == 0) + cadet_start_rds(dev); if (dev->rdsin == dev->rdsout) { + if (file->f_flags & O_NONBLOCK) { + i = -EWOULDBLOCK; + goto unlock; + } mutex_unlock(&dev->lock); - if (file->f_flags & O_NONBLOCK) - return -EWOULDBLOCK; interruptible_sleep_on(&dev->read_queue); mutex_lock(&dev->lock); } while (i < count && dev->rdsin != dev->rdsout) readbuf[i++] = dev->rdsbuf[dev->rdsout++]; - mutex_unlock(&dev->lock); - if (copy_to_user(data, readbuf, i)) - return -EFAULT; + if (i && copy_to_user(data, readbuf, i)) + i = -EFAULT; +unlock: + mutex_unlock(&dev->lock); return i; } @@ -359,48 +331,58 @@ static int vidioc_querycap(struct file *file, void *priv, strlcpy(v->driver, "ADS Cadet", sizeof(v->driver)); strlcpy(v->card, "ADS Cadet", sizeof(v->card)); strlcpy(v->bus_info, "ISA", sizeof(v->bus_info)); - v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO | + v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_READWRITE | V4L2_CAP_RDS_CAPTURE; + v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS; return 0; } +static const struct v4l2_frequency_band bands[] = { + { + .index = 0, + .type = V4L2_TUNER_RADIO, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 8320, /* 520 kHz */ + .rangehigh = 26400, /* 1650 kHz */ + .modulation = V4L2_BAND_MODULATION_AM, + }, { + .index = 1, + .type = V4L2_TUNER_RADIO, + .capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS | + V4L2_TUNER_CAP_RDS_BLOCK_IO | V4L2_TUNER_CAP_LOW | + V4L2_TUNER_CAP_FREQ_BANDS, + .rangelow = 1400000, /* 87.5 MHz */ + .rangehigh = 1728000, /* 108.0 MHz */ + .modulation = V4L2_BAND_MODULATION_FM, + }, +}; + static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { struct cadet *dev = video_drvdata(file); + if (v->index) + return -EINVAL; v->type = V4L2_TUNER_RADIO; - switch (v->index) { - case 0: - strlcpy(v->name, "FM", sizeof(v->name)); - v->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS | - V4L2_TUNER_CAP_RDS_BLOCK_IO; - v->rangelow = 1400; /* 87.5 MHz */ - v->rangehigh = 1728; /* 108.0 MHz */ + strlcpy(v->name, "Radio", sizeof(v->name)); + v->capability = bands[0].capability | bands[1].capability; + v->rangelow = bands[0].rangelow; /* 520 kHz (start of AM band) */ + v->rangehigh = bands[1].rangehigh; /* 108.0 MHz (end of FM band) */ + if (dev->is_fm_band) { v->rxsubchans = cadet_getstereo(dev); - switch (v->rxsubchans) { - case V4L2_TUNER_SUB_MONO: - v->audmode = V4L2_TUNER_MODE_MONO; - break; - case V4L2_TUNER_SUB_STEREO: - v->audmode = V4L2_TUNER_MODE_STEREO; - break; - default: - break; - } - v->rxsubchans |= V4L2_TUNER_SUB_RDS; - break; - case 1: - strlcpy(v->name, "AM", sizeof(v->name)); - v->capability = V4L2_TUNER_CAP_LOW; + outb(3, dev->io); + outb(inb(dev->io + 1) & 0x7f, dev->io + 1); + mdelay(100); + outb(3, dev->io); + if (inb(dev->io + 1) & 0x80) + v->rxsubchans |= V4L2_TUNER_SUB_RDS; + } else { v->rangelow = 8320; /* 520 kHz */ v->rangehigh = 26400; /* 1650 kHz */ v->rxsubchans = V4L2_TUNER_SUB_MONO; - v->audmode = V4L2_TUNER_MODE_MONO; - break; - default: - return -EINVAL; } + v->audmode = V4L2_TUNER_MODE_STEREO; v->signal = dev->sigstrength; /* We might need to modify scaling of this */ return 0; } @@ -408,11 +390,17 @@ static int vidioc_g_tuner(struct file *file, void *priv, static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - struct cadet *dev = video_drvdata(file); + return v->index ? -EINVAL : 0; +} - if (v->index != 0 && v->index != 1) +static int vidioc_enum_freq_bands(struct file *file, void *priv, + struct v4l2_frequency_band *band) +{ + if (band->tuner) + return -EINVAL; + if (band->index >= ARRAY_SIZE(bands)) return -EINVAL; - dev->curtuner = v->index; + *band = bands[band->index]; return 0; } @@ -421,9 +409,10 @@ static int vidioc_g_frequency(struct file *file, void *priv, { struct cadet *dev = video_drvdata(file); - f->tuner = dev->curtuner; + if (f->tuner) + return -EINVAL; f->type = V4L2_TUNER_RADIO; - f->frequency = cadet_getfreq(dev); + f->frequency = dev->curfreq; return 0; } @@ -433,103 +422,46 @@ static int vidioc_s_frequency(struct file *file, void *priv, { struct cadet *dev = video_drvdata(file); - if (f->type != V4L2_TUNER_RADIO) - return -EINVAL; - if (dev->curtuner == 0 && (f->frequency < 1400 || f->frequency > 1728)) - return -EINVAL; - if (dev->curtuner == 1 && (f->frequency < 8320 || f->frequency > 26400)) + if (f->tuner) return -EINVAL; + dev->is_fm_band = + f->frequency >= (bands[0].rangehigh + bands[1].rangelow) / 2; + clamp(f->frequency, bands[dev->is_fm_band].rangelow, + bands[dev->is_fm_band].rangehigh); cadet_setfreq(dev, f->frequency); return 0; } -static int vidioc_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *qc) +static int cadet_s_ctrl(struct v4l2_ctrl *ctrl) { - switch (qc->id) { - case V4L2_CID_AUDIO_MUTE: - return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); - case V4L2_CID_AUDIO_VOLUME: - return v4l2_ctrl_query_fill(qc, 0, 0xff, 1, 0xff); - } - return -EINVAL; -} - -static int vidioc_g_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct cadet *dev = video_drvdata(file); + struct cadet *dev = container_of(ctrl->handler, struct cadet, ctrl_handler); switch (ctrl->id) { - case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */ - ctrl->value = (cadet_getvol(dev) == 0); - break; - case V4L2_CID_AUDIO_VOLUME: - ctrl->value = cadet_getvol(dev); - break; - default: - return -EINVAL; - } - return 0; -} - -static int vidioc_s_ctrl(struct file *file, void *priv, - struct v4l2_control *ctrl) -{ - struct cadet *dev = video_drvdata(file); - - switch (ctrl->id){ - case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */ - if (ctrl->value) - cadet_setvol(dev, 0); + case V4L2_CID_AUDIO_MUTE: + outb(7, dev->io); /* Select tuner control */ + if (ctrl->val) + outb(0x00, dev->io + 1); else - cadet_setvol(dev, 0xffff); - break; - case V4L2_CID_AUDIO_VOLUME: - cadet_setvol(dev, ctrl->value); - break; - default: - return -EINVAL; + outb(0x20, dev->io + 1); + return 0; } - return 0; -} - -static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i) -{ - *i = 0; - return 0; -} - -static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) -{ - return i ? -EINVAL : 0; -} - -static int vidioc_g_audio(struct file *file, void *priv, - struct v4l2_audio *a) -{ - a->index = 0; - strlcpy(a->name, "Radio", sizeof(a->name)); - a->capability = V4L2_AUDCAP_STEREO; - return 0; -} - -static int vidioc_s_audio(struct file *file, void *priv, - struct v4l2_audio *a) -{ - return a->index ? -EINVAL : 0; + return -EINVAL; } static int cadet_open(struct file *file) { struct cadet *dev = video_drvdata(file); + int err; mutex_lock(&dev->lock); - dev->users++; - if (1 == dev->users) + err = v4l2_fh_open(file); + if (err) + goto fail; + if (v4l2_fh_is_singular_file(file)) init_waitqueue_head(&dev->read_queue); +fail: mutex_unlock(&dev->lock); - return 0; + return err; } static int cadet_release(struct file *file) @@ -537,11 +469,11 @@ static int cadet_release(struct file *file) struct cadet *dev = video_drvdata(file); mutex_lock(&dev->lock); - dev->users--; - if (0 == dev->users) { + if (v4l2_fh_is_singular_file(file) && dev->rdsstat) { del_timer_sync(&dev->readtimer); dev->rdsstat = 0; } + v4l2_fh_release(file); mutex_unlock(&dev->lock); return 0; } @@ -549,11 +481,19 @@ static int cadet_release(struct file *file) static unsigned int cadet_poll(struct file *file, struct poll_table_struct *wait) { struct cadet *dev = video_drvdata(file); + unsigned long req_events = poll_requested_events(wait); + unsigned int res = v4l2_ctrl_poll(file, wait); poll_wait(file, &dev->read_queue, wait); + if (dev->rdsstat == 0 && (req_events & (POLLIN | POLLRDNORM))) { + mutex_lock(&dev->lock); + if (dev->rdsstat == 0) + cadet_start_rds(dev); + mutex_unlock(&dev->lock); + } if (dev->rdsin != dev->rdsout) - return POLLIN | POLLRDNORM; - return 0; + res |= POLLIN | POLLRDNORM; + return res; } @@ -572,13 +512,14 @@ static const struct v4l2_ioctl_ops cadet_ioctl_ops = { .vidioc_s_tuner = vidioc_s_tuner, .vidioc_g_frequency = vidioc_g_frequency, .vidioc_s_frequency = vidioc_s_frequency, - .vidioc_queryctrl = vidioc_queryctrl, - .vidioc_g_ctrl = vidioc_g_ctrl, - .vidioc_s_ctrl = vidioc_s_ctrl, - .vidioc_g_audio = vidioc_g_audio, - .vidioc_s_audio = vidioc_s_audio, - .vidioc_g_input = vidioc_g_input, - .vidioc_s_input = vidioc_s_input, + .vidioc_enum_freq_bands = vidioc_enum_freq_bands, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct v4l2_ctrl_ops cadet_ctrl_ops = { + .s_ctrl = cadet_s_ctrl, }; #ifdef CONFIG_PNP @@ -628,8 +569,8 @@ static void cadet_probe(struct cadet *dev) for (i = 0; i < 8; i++) { dev->io = iovals[i]; if (request_region(dev->io, 2, "cadet-probe")) { - cadet_setfreq(dev, 1410); - if (cadet_getfreq(dev) == 1410) { + cadet_setfreq(dev, bands[1].rangelow); + if (cadet_getfreq(dev) == bands[1].rangelow) { release_region(dev->io, 2); return; } @@ -648,7 +589,8 @@ static int __init cadet_init(void) { struct cadet *dev = &cadet_card; struct v4l2_device *v4l2_dev = &dev->v4l2_dev; - int res; + struct v4l2_ctrl_handler *hdl; + int res = -ENODEV; strlcpy(v4l2_dev->name, "cadet", sizeof(v4l2_dev->name)); mutex_init(&dev->lock); @@ -680,23 +622,40 @@ static int __init cadet_init(void) goto fail; } + hdl = &dev->ctrl_handler; + v4l2_ctrl_handler_init(hdl, 2); + v4l2_ctrl_new_std(hdl, &cadet_ctrl_ops, + V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); + v4l2_dev->ctrl_handler = hdl; + if (hdl->error) { + res = hdl->error; + v4l2_err(v4l2_dev, "Could not register controls\n"); + goto err_hdl; + } + + dev->is_fm_band = true; + dev->curfreq = bands[dev->is_fm_band].rangelow; + cadet_setfreq(dev, dev->curfreq); strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name)); dev->vdev.v4l2_dev = v4l2_dev; dev->vdev.fops = &cadet_fops; dev->vdev.ioctl_ops = &cadet_ioctl_ops; dev->vdev.release = video_device_release_empty; + dev->vdev.lock = &dev->lock; + set_bit(V4L2_FL_USE_FH_PRIO, &dev->vdev.flags); video_set_drvdata(&dev->vdev, dev); - if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) { - v4l2_device_unregister(v4l2_dev); - release_region(dev->io, 2); - goto fail; - } + if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) + goto err_hdl; v4l2_info(v4l2_dev, "ADS Cadet Radio Card at 0x%x\n", dev->io); return 0; +err_hdl: + v4l2_ctrl_handler_free(hdl); + v4l2_device_unregister(v4l2_dev); + release_region(dev->io, 2); fail: pnp_unregister_driver(&cadet_pnp_driver); - return -ENODEV; + return res; } static void __exit cadet_exit(void) @@ -704,7 +663,10 @@ static void __exit cadet_exit(void) struct cadet *dev = &cadet_card; video_unregister_device(&dev->vdev); + v4l2_ctrl_handler_free(&dev->ctrl_handler); v4l2_device_unregister(&dev->v4l2_dev); + outb(7, dev->io); /* Mute */ + outb(0x00, dev->io + 1); release_region(dev->io, 2); pnp_unregister_driver(&cadet_pnp_driver); } diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c index 94cb6bc..3182b26 100644 --- a/drivers/media/radio/radio-mr800.c +++ b/drivers/media/radio/radio-mr800.c @@ -295,7 +295,8 @@ static int vidioc_g_tuner(struct file *file, void *priv, v->type = V4L2_TUNER_RADIO; v->rangelow = FREQ_MIN * FREQ_MUL; v->rangehigh = FREQ_MAX * FREQ_MUL; - v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO; + v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_HWSEEK_WRAP; v->rxsubchans = is_stereo ? V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO; v->audmode = radio->stereo ? V4L2_TUNER_MODE_STEREO : V4L2_TUNER_MODE_MONO; @@ -372,7 +373,7 @@ static int vidioc_s_hw_freq_seek(struct file *file, void *priv, timeout = jiffies + msecs_to_jiffies(30000); for (;;) { if (time_after(jiffies, timeout)) { - retval = -EAGAIN; + retval = -ENODATA; break; } if (schedule_timeout_interruptible(msecs_to_jiffies(10))) { diff --git a/drivers/media/radio/radio-sf16fmi.c b/drivers/media/radio/radio-sf16fmi.c index a81d723..8185d5f 100644 --- a/drivers/media/radio/radio-sf16fmi.c +++ b/drivers/media/radio/radio-sf16fmi.c @@ -27,6 +27,7 @@ #include /* outb, outb_p */ #include #include +#include "lm7000.h" MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood"); MODULE_DESCRIPTION("A driver for the SF16-FMI, SF16-FMP and SF16-FMD radio."); @@ -54,31 +55,33 @@ static struct fmi fmi_card; static struct pnp_dev *dev; bool pnp_attached; -/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */ -/* It is only useful to give freq in interval of 800 (=0.05Mhz), - * other bits will be truncated, e.g 92.7400016 -> 92.7, but - * 92.7400017 -> 92.75 - */ -#define RSF16_ENCODE(x) ((x) / 800 + 214) #define RSF16_MINFREQ (87 * 16000) #define RSF16_MAXFREQ (108 * 16000) -static void outbits(int bits, unsigned int data, int io) +#define FMI_BIT_TUN_CE (1 << 0) +#define FMI_BIT_TUN_CLK (1 << 1) +#define FMI_BIT_TUN_DATA (1 << 2) +#define FMI_BIT_VOL_SW (1 << 3) +#define FMI_BIT_TUN_STRQ (1 << 4) + +void fmi_set_pins(void *handle, u8 pins) { - while (bits--) { - if (data & 1) { - outb(5, io); - udelay(6); - outb(7, io); - udelay(6); - } else { - outb(1, io); - udelay(6); - outb(3, io); - udelay(6); - } - data >>= 1; - } + struct fmi *fmi = handle; + u8 bits = FMI_BIT_TUN_STRQ; + + if (!fmi->mute) + bits |= FMI_BIT_VOL_SW; + + if (pins & LM7000_DATA) + bits |= FMI_BIT_TUN_DATA; + if (pins & LM7000_CLK) + bits |= FMI_BIT_TUN_CLK; + if (pins & LM7000_CE) + bits |= FMI_BIT_TUN_CE; + + mutex_lock(&fmi->lock); + outb_p(bits, fmi->io); + mutex_unlock(&fmi->lock); } static inline void fmi_mute(struct fmi *fmi) @@ -95,20 +98,6 @@ static inline void fmi_unmute(struct fmi *fmi) mutex_unlock(&fmi->lock); } -static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq) -{ - mutex_lock(&fmi->lock); - fmi->curfreq = freq; - - outbits(16, RSF16_ENCODE(freq), fmi->io); - outbits(8, 0xC0, fmi->io); - msleep(143); /* was schedule_timeout(HZ/7) */ - mutex_unlock(&fmi->lock); - if (!fmi->mute) - fmi_unmute(fmi); - return 0; -} - static inline int fmi_getsigstr(struct fmi *fmi) { int val; @@ -173,7 +162,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, return -EINVAL; /* rounding in steps of 800 to match the freq that will be used */ - fmi_setfreq(fmi, (f->frequency / 800) * 800); + lm7000_set_freq((f->frequency / 800) * 800, fmi, fmi_set_pins); return 0; } diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c new file mode 100644 index 0000000..d0b6bb5 --- /dev/null +++ b/drivers/media/radio/radio-shark.c @@ -0,0 +1,376 @@ +/* + * Linux V4L2 radio driver for the Griffin radioSHARK USB radio receiver + * + * Note the radioSHARK offers the audio through a regular USB audio device, + * this driver only handles the tuning. + * + * The info necessary to drive the shark was taken from the small userspace + * shark.c program by Michael Rolig, which he kindly placed in the Public + * Domain. + * + * Copyright (c) 2012 Hans de Goede + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Version Information + */ +MODULE_AUTHOR("Hans de Goede "); +MODULE_DESCRIPTION("Griffin radioSHARK, USB radio receiver driver"); +MODULE_LICENSE("GPL"); + +#define SHARK_IN_EP 0x83 +#define SHARK_OUT_EP 0x05 + +#define TEA575X_BIT_MONO (1<<22) /* 0 = stereo, 1 = mono */ +#define TEA575X_BIT_BAND_MASK (3<<20) +#define TEA575X_BIT_BAND_FM (0<<20) + +#define TB_LEN 6 +#define DRV_NAME "radioshark" + +#define v4l2_dev_to_shark(d) container_of(d, struct shark_device, v4l2_dev) + +enum { BLUE_LED, BLUE_PULSE_LED, RED_LED, NO_LEDS }; + +static void shark_led_set_blue(struct led_classdev *led_cdev, + enum led_brightness value); +static void shark_led_set_blue_pulse(struct led_classdev *led_cdev, + enum led_brightness value); +static void shark_led_set_red(struct led_classdev *led_cdev, + enum led_brightness value); + +static const struct led_classdev shark_led_templates[NO_LEDS] = { + [BLUE_LED] = { + .name = "%s:blue:", + .brightness = LED_OFF, + .max_brightness = 127, + .brightness_set = shark_led_set_blue, + }, + [BLUE_PULSE_LED] = { + .name = "%s:blue-pulse:", + .brightness = LED_OFF, + .max_brightness = 255, + .brightness_set = shark_led_set_blue_pulse, + }, + [RED_LED] = { + .name = "%s:red:", + .brightness = LED_OFF, + .max_brightness = 1, + .brightness_set = shark_led_set_red, + }, +}; + +struct shark_device { + struct usb_device *usbdev; + struct v4l2_device v4l2_dev; + struct snd_tea575x tea; + + struct work_struct led_work; + struct led_classdev leds[NO_LEDS]; + char led_names[NO_LEDS][32]; + atomic_t brightness[NO_LEDS]; + unsigned long brightness_new; + + u8 *transfer_buffer; + u32 last_val; +}; + +static atomic_t shark_instance = ATOMIC_INIT(0); + +static void shark_write_val(struct snd_tea575x *tea, u32 val) +{ + struct shark_device *shark = tea->private_data; + int i, res, actual_len; + + /* Avoid unnecessary (slow) USB transfers */ + if (shark->last_val == val) + return; + + memset(shark->transfer_buffer, 0, TB_LEN); + shark->transfer_buffer[0] = 0xc0; /* Write shift register command */ + for (i = 0; i < 4; i++) + shark->transfer_buffer[i] |= (val >> (24 - i * 8)) & 0xff; + + res = usb_interrupt_msg(shark->usbdev, + usb_sndintpipe(shark->usbdev, SHARK_OUT_EP), + shark->transfer_buffer, TB_LEN, + &actual_len, 1000); + if (res >= 0) + shark->last_val = val; + else + v4l2_err(&shark->v4l2_dev, "set-freq error: %d\n", res); +} + +static u32 shark_read_val(struct snd_tea575x *tea) +{ + struct shark_device *shark = tea->private_data; + int i, res, actual_len; + u32 val = 0; + + memset(shark->transfer_buffer, 0, TB_LEN); + shark->transfer_buffer[0] = 0x80; + res = usb_interrupt_msg(shark->usbdev, + usb_sndintpipe(shark->usbdev, SHARK_OUT_EP), + shark->transfer_buffer, TB_LEN, + &actual_len, 1000); + if (res < 0) { + v4l2_err(&shark->v4l2_dev, "request-status error: %d\n", res); + return shark->last_val; + } + + res = usb_interrupt_msg(shark->usbdev, + usb_rcvintpipe(shark->usbdev, SHARK_IN_EP), + shark->transfer_buffer, TB_LEN, + &actual_len, 1000); + if (res < 0) { + v4l2_err(&shark->v4l2_dev, "get-status error: %d\n", res); + return shark->last_val; + } + + for (i = 0; i < 4; i++) + val |= shark->transfer_buffer[i] << (24 - i * 8); + + shark->last_val = val; + + /* + * The shark does not allow actually reading the stereo / mono pin :( + * So assume that when we're tuned to an FM station and mono has not + * been requested, that we're receiving stereo. + */ + if (((val & TEA575X_BIT_BAND_MASK) == TEA575X_BIT_BAND_FM) && + !(val & TEA575X_BIT_MONO)) + shark->tea.stereo = true; + else + shark->tea.stereo = false; + + return val; +} + +static struct snd_tea575x_ops shark_tea_ops = { + .write_val = shark_write_val, + .read_val = shark_read_val, +}; + +static void shark_led_work(struct work_struct *work) +{ + struct shark_device *shark = + container_of(work, struct shark_device, led_work); + int i, res, brightness, actual_len; + + /* + * We use the v4l2_dev lock and registered bit to ensure the device + * does not get unplugged and unreffed while we're running. + */ + mutex_lock(&shark->tea.mutex); + if (!video_is_registered(&shark->tea.vd)) + goto leave; + + for (i = 0; i < 3; i++) { + if (!test_and_clear_bit(i, &shark->brightness_new)) + continue; + + brightness = atomic_read(&shark->brightness[i]); + memset(shark->transfer_buffer, 0, TB_LEN); + if (i != RED_LED) { + shark->transfer_buffer[0] = 0xA0 + i; + shark->transfer_buffer[1] = brightness; + } else + shark->transfer_buffer[0] = brightness ? 0xA9 : 0xA8; + res = usb_interrupt_msg(shark->usbdev, + usb_sndintpipe(shark->usbdev, 0x05), + shark->transfer_buffer, TB_LEN, + &actual_len, 1000); + if (res < 0) + v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n", + shark->led_names[i], res); + } +leave: + mutex_unlock(&shark->tea.mutex); +} + +static void shark_led_set_blue(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct shark_device *shark = + container_of(led_cdev, struct shark_device, leds[BLUE_LED]); + + atomic_set(&shark->brightness[BLUE_LED], value); + set_bit(BLUE_LED, &shark->brightness_new); + schedule_work(&shark->led_work); +} + +static void shark_led_set_blue_pulse(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct shark_device *shark = container_of(led_cdev, + struct shark_device, leds[BLUE_PULSE_LED]); + + atomic_set(&shark->brightness[BLUE_PULSE_LED], 256 - value); + set_bit(BLUE_PULSE_LED, &shark->brightness_new); + schedule_work(&shark->led_work); +} + +static void shark_led_set_red(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct shark_device *shark = + container_of(led_cdev, struct shark_device, leds[RED_LED]); + + atomic_set(&shark->brightness[RED_LED], value); + set_bit(RED_LED, &shark->brightness_new); + schedule_work(&shark->led_work); +} + +static void usb_shark_disconnect(struct usb_interface *intf) +{ + struct v4l2_device *v4l2_dev = usb_get_intfdata(intf); + struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev); + int i; + + mutex_lock(&shark->tea.mutex); + v4l2_device_disconnect(&shark->v4l2_dev); + snd_tea575x_exit(&shark->tea); + mutex_unlock(&shark->tea.mutex); + + for (i = 0; i < NO_LEDS; i++) + led_classdev_unregister(&shark->leds[i]); + + v4l2_device_put(&shark->v4l2_dev); +} + +static void usb_shark_release(struct v4l2_device *v4l2_dev) +{ + struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev); + + cancel_work_sync(&shark->led_work); + v4l2_device_unregister(&shark->v4l2_dev); + kfree(shark->transfer_buffer); + kfree(shark); +} + +static int usb_shark_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct shark_device *shark; + int i, retval = -ENOMEM; + + shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL); + if (!shark) + return retval; + + shark->transfer_buffer = kmalloc(TB_LEN, GFP_KERNEL); + if (!shark->transfer_buffer) + goto err_alloc_buffer; + + /* + * Work around a bug in usbhid/hid-core.c, where it leaves a dangling + * pointer in intfdata causing v4l2-device.c to not set it. Which + * results in usb_shark_disconnect() referencing the dangling pointer + * + * REMOVE (as soon as the above bug is fixed, patch submitted) + */ + usb_set_intfdata(intf, NULL); + + shark->v4l2_dev.release = usb_shark_release; + v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance); + retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev); + if (retval) { + v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n"); + goto err_reg_dev; + } + + shark->usbdev = interface_to_usbdev(intf); + shark->tea.v4l2_dev = &shark->v4l2_dev; + shark->tea.private_data = shark; + shark->tea.radio_nr = -1; + shark->tea.ops = &shark_tea_ops; + shark->tea.cannot_mute = true; + strlcpy(shark->tea.card, "Griffin radioSHARK", + sizeof(shark->tea.card)); + usb_make_path(shark->usbdev, shark->tea.bus_info, + sizeof(shark->tea.bus_info)); + + retval = snd_tea575x_init(&shark->tea, THIS_MODULE); + if (retval) { + v4l2_err(&shark->v4l2_dev, "couldn't init tea5757\n"); + goto err_init_tea; + } + + INIT_WORK(&shark->led_work, shark_led_work); + for (i = 0; i < NO_LEDS; i++) { + shark->leds[i] = shark_led_templates[i]; + snprintf(shark->led_names[i], sizeof(shark->led_names[0]), + shark->leds[i].name, shark->v4l2_dev.name); + shark->leds[i].name = shark->led_names[i]; + /* + * We don't fail the probe if we fail to register the leds, + * because once we've called snd_tea575x_init, the /dev/radio0 + * node may be opened from userspace holding a reference to us! + * + * Note we cannot register the leds first instead as + * shark_led_work depends on the v4l2 mutex and registered bit. + */ + retval = led_classdev_register(&intf->dev, &shark->leds[i]); + if (retval) + v4l2_err(&shark->v4l2_dev, + "couldn't register led: %s\n", + shark->led_names[i]); + } + + return 0; + +err_init_tea: + v4l2_device_unregister(&shark->v4l2_dev); +err_reg_dev: + kfree(shark->transfer_buffer); +err_alloc_buffer: + kfree(shark); + + return retval; +} + +/* Specify the bcdDevice value, as the radioSHARK and radioSHARK2 share ids */ +static struct usb_device_id usb_shark_device_table[] = { + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION | + USB_DEVICE_ID_MATCH_INT_CLASS, + .idVendor = 0x077d, + .idProduct = 0x627a, + .bcdDevice_lo = 0x0001, + .bcdDevice_hi = 0x0001, + .bInterfaceClass = 3, + }, + { } +}; +MODULE_DEVICE_TABLE(usb, usb_shark_device_table); + +static struct usb_driver usb_shark_driver = { + .name = DRV_NAME, + .probe = usb_shark_probe, + .disconnect = usb_shark_disconnect, + .id_table = usb_shark_device_table, +}; +module_usb_driver(usb_shark_driver); diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c new file mode 100644 index 0000000..b9575de --- /dev/null +++ b/drivers/media/radio/radio-shark2.c @@ -0,0 +1,348 @@ +/* + * Linux V4L2 radio driver for the Griffin radioSHARK2 USB radio receiver + * + * Note the radioSHARK2 offers the audio through a regular USB audio device, + * this driver only handles the tuning. + * + * The info necessary to drive the shark2 was taken from the small userspace + * shark2.c program by Hisaaki Shibata, which he kindly placed in the Public + * Domain. + * + * Copyright (c) 2012 Hans de Goede + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "radio-tea5777.h" + +MODULE_AUTHOR("Hans de Goede "); +MODULE_DESCRIPTION("Griffin radioSHARK2, USB radio receiver driver"); +MODULE_LICENSE("GPL"); + +static int debug; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0-1)"); + + +#define SHARK_IN_EP 0x83 +#define SHARK_OUT_EP 0x05 + +#define TB_LEN 7 +#define DRV_NAME "radioshark2" + +#define v4l2_dev_to_shark(d) container_of(d, struct shark_device, v4l2_dev) + +enum { BLUE_LED, RED_LED, NO_LEDS }; + +static void shark_led_set_blue(struct led_classdev *led_cdev, + enum led_brightness value); +static void shark_led_set_red(struct led_classdev *led_cdev, + enum led_brightness value); + +static const struct led_classdev shark_led_templates[NO_LEDS] = { + [BLUE_LED] = { + .name = "%s:blue:", + .brightness = LED_OFF, + .max_brightness = 127, + .brightness_set = shark_led_set_blue, + }, + [RED_LED] = { + .name = "%s:red:", + .brightness = LED_OFF, + .max_brightness = 1, + .brightness_set = shark_led_set_red, + }, +}; + +struct shark_device { + struct usb_device *usbdev; + struct v4l2_device v4l2_dev; + struct radio_tea5777 tea; + + struct work_struct led_work; + struct led_classdev leds[NO_LEDS]; + char led_names[NO_LEDS][32]; + atomic_t brightness[NO_LEDS]; + unsigned long brightness_new; + + u8 *transfer_buffer; +}; + +static atomic_t shark_instance = ATOMIC_INIT(0); + +static int shark_write_reg(struct radio_tea5777 *tea, u64 reg) +{ + struct shark_device *shark = tea->private_data; + int i, res, actual_len; + + memset(shark->transfer_buffer, 0, TB_LEN); + shark->transfer_buffer[0] = 0x81; /* Write register command */ + for (i = 0; i < 6; i++) + shark->transfer_buffer[i + 1] = (reg >> (40 - i * 8)) & 0xff; + + v4l2_dbg(1, debug, tea->v4l2_dev, + "shark2-write: %02x %02x %02x %02x %02x %02x %02x\n", + shark->transfer_buffer[0], shark->transfer_buffer[1], + shark->transfer_buffer[2], shark->transfer_buffer[3], + shark->transfer_buffer[4], shark->transfer_buffer[5], + shark->transfer_buffer[6]); + + res = usb_interrupt_msg(shark->usbdev, + usb_sndintpipe(shark->usbdev, SHARK_OUT_EP), + shark->transfer_buffer, TB_LEN, + &actual_len, 1000); + if (res < 0) { + v4l2_err(tea->v4l2_dev, "write error: %d\n", res); + return res; + } + + return 0; +} + +static int shark_read_reg(struct radio_tea5777 *tea, u32 *reg_ret) +{ + struct shark_device *shark = tea->private_data; + int i, res, actual_len; + u32 reg = 0; + + memset(shark->transfer_buffer, 0, TB_LEN); + shark->transfer_buffer[0] = 0x82; + res = usb_interrupt_msg(shark->usbdev, + usb_sndintpipe(shark->usbdev, SHARK_OUT_EP), + shark->transfer_buffer, TB_LEN, + &actual_len, 1000); + if (res < 0) { + v4l2_err(tea->v4l2_dev, "request-read error: %d\n", res); + return res; + } + + res = usb_interrupt_msg(shark->usbdev, + usb_rcvintpipe(shark->usbdev, SHARK_IN_EP), + shark->transfer_buffer, TB_LEN, + &actual_len, 1000); + if (res < 0) { + v4l2_err(tea->v4l2_dev, "read error: %d\n", res); + return res; + } + + for (i = 0; i < 3; i++) + reg |= shark->transfer_buffer[i] << (16 - i * 8); + + v4l2_dbg(1, debug, tea->v4l2_dev, "shark2-read: %02x %02x %02x\n", + shark->transfer_buffer[0], shark->transfer_buffer[1], + shark->transfer_buffer[2]); + + *reg_ret = reg; + return 0; +} + +static struct radio_tea5777_ops shark_tea_ops = { + .write_reg = shark_write_reg, + .read_reg = shark_read_reg, +}; + +static void shark_led_work(struct work_struct *work) +{ + struct shark_device *shark = + container_of(work, struct shark_device, led_work); + int i, res, brightness, actual_len; + /* + * We use the v4l2_dev lock and registered bit to ensure the device + * does not get unplugged and unreffed while we're running. + */ + mutex_lock(&shark->tea.mutex); + if (!video_is_registered(&shark->tea.vd)) + goto leave; + + for (i = 0; i < 2; i++) { + if (!test_and_clear_bit(i, &shark->brightness_new)) + continue; + + brightness = atomic_read(&shark->brightness[i]); + memset(shark->transfer_buffer, 0, TB_LEN); + shark->transfer_buffer[0] = 0x83 + i; + shark->transfer_buffer[1] = brightness; + res = usb_interrupt_msg(shark->usbdev, + usb_sndintpipe(shark->usbdev, + SHARK_OUT_EP), + shark->transfer_buffer, TB_LEN, + &actual_len, 1000); + if (res < 0) + v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n", + shark->led_names[i], res); + } +leave: + mutex_unlock(&shark->tea.mutex); +} + +static void shark_led_set_blue(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct shark_device *shark = + container_of(led_cdev, struct shark_device, leds[BLUE_LED]); + + atomic_set(&shark->brightness[BLUE_LED], value); + set_bit(BLUE_LED, &shark->brightness_new); + schedule_work(&shark->led_work); +} + +static void shark_led_set_red(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct shark_device *shark = + container_of(led_cdev, struct shark_device, leds[RED_LED]); + + atomic_set(&shark->brightness[RED_LED], value); + set_bit(RED_LED, &shark->brightness_new); + schedule_work(&shark->led_work); +} + +static void usb_shark_disconnect(struct usb_interface *intf) +{ + struct v4l2_device *v4l2_dev = usb_get_intfdata(intf); + struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev); + int i; + + mutex_lock(&shark->tea.mutex); + v4l2_device_disconnect(&shark->v4l2_dev); + radio_tea5777_exit(&shark->tea); + mutex_unlock(&shark->tea.mutex); + + for (i = 0; i < NO_LEDS; i++) + led_classdev_unregister(&shark->leds[i]); + + v4l2_device_put(&shark->v4l2_dev); +} + +static void usb_shark_release(struct v4l2_device *v4l2_dev) +{ + struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev); + + cancel_work_sync(&shark->led_work); + v4l2_device_unregister(&shark->v4l2_dev); + kfree(shark->transfer_buffer); + kfree(shark); +} + +static int usb_shark_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct shark_device *shark; + int i, retval = -ENOMEM; + + shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL); + if (!shark) + return retval; + + shark->transfer_buffer = kmalloc(TB_LEN, GFP_KERNEL); + if (!shark->transfer_buffer) + goto err_alloc_buffer; + + /* + * Work around a bug in usbhid/hid-core.c, where it leaves a dangling + * pointer in intfdata causing v4l2-device.c to not set it. Which + * results in usb_shark_disconnect() referencing the dangling pointer + * + * REMOVE (as soon as the above bug is fixed, patch submitted) + */ + usb_set_intfdata(intf, NULL); + + shark->v4l2_dev.release = usb_shark_release; + v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance); + retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev); + if (retval) { + v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n"); + goto err_reg_dev; + } + + shark->usbdev = interface_to_usbdev(intf); + shark->tea.v4l2_dev = &shark->v4l2_dev; + shark->tea.private_data = shark; + shark->tea.ops = &shark_tea_ops; + shark->tea.has_am = true; + shark->tea.write_before_read = true; + strlcpy(shark->tea.card, "Griffin radioSHARK2", + sizeof(shark->tea.card)); + usb_make_path(shark->usbdev, shark->tea.bus_info, + sizeof(shark->tea.bus_info)); + + retval = radio_tea5777_init(&shark->tea, THIS_MODULE); + if (retval) { + v4l2_err(&shark->v4l2_dev, "couldn't init tea5777\n"); + goto err_init_tea; + } + + INIT_WORK(&shark->led_work, shark_led_work); + for (i = 0; i < NO_LEDS; i++) { + shark->leds[i] = shark_led_templates[i]; + snprintf(shark->led_names[i], sizeof(shark->led_names[0]), + shark->leds[i].name, shark->v4l2_dev.name); + shark->leds[i].name = shark->led_names[i]; + /* + * We don't fail the probe if we fail to register the leds, + * because once we've called radio_tea5777_init, the /dev/radio0 + * node may be opened from userspace holding a reference to us! + * + * Note we cannot register the leds first instead as + * shark_led_work depends on the v4l2 mutex and registered bit. + */ + retval = led_classdev_register(&intf->dev, &shark->leds[i]); + if (retval) + v4l2_err(&shark->v4l2_dev, + "couldn't register led: %s\n", + shark->led_names[i]); + } + + return 0; + +err_init_tea: + v4l2_device_unregister(&shark->v4l2_dev); +err_reg_dev: + kfree(shark->transfer_buffer); +err_alloc_buffer: + kfree(shark); + + return retval; +} + +/* Specify the bcdDevice value, as the radioSHARK and radioSHARK2 share ids */ +static struct usb_device_id usb_shark_device_table[] = { + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION | + USB_DEVICE_ID_MATCH_INT_CLASS, + .idVendor = 0x077d, + .idProduct = 0x627a, + .bcdDevice_lo = 0x0010, + .bcdDevice_hi = 0x0010, + .bInterfaceClass = 3, + }, + { } +}; +MODULE_DEVICE_TABLE(usb, usb_shark_device_table); + +static struct usb_driver usb_shark_driver = { + .name = DRV_NAME, + .probe = usb_shark_probe, + .disconnect = usb_shark_disconnect, + .id_table = usb_shark_device_table, +}; +module_usb_driver(usb_shark_driver); diff --git a/drivers/media/radio/radio-tea5777.c b/drivers/media/radio/radio-tea5777.c new file mode 100644 index 0000000..5bc9fa6 --- /dev/null +++ b/drivers/media/radio/radio-tea5777.c @@ -0,0 +1,491 @@ +/* + * v4l2 driver for TEA5777 Philips AM/FM radio tuner chips + * + * Copyright (c) 2012 Hans de Goede + * + * Based on the ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips: + * + * Copyright (c) 2004 Jaroslav Kysela + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "radio-tea5777.h" + +MODULE_AUTHOR("Hans de Goede "); +MODULE_DESCRIPTION("Routines for control of TEA5777 Philips AM/FM radio tuner chips"); +MODULE_LICENSE("GPL"); + +/* Fixed FM only band for now, will implement multi-band support when the + VIDIOC_ENUM_FREQ_BANDS API is upstream */ +#define TEA5777_FM_RANGELOW (76000 * 16) +#define TEA5777_FM_RANGEHIGH (108000 * 16) + +#define TEA5777_FM_IF 150 /* kHz */ +#define TEA5777_FM_FREQ_STEP 50 /* kHz */ + +/* Write reg, common bits */ +#define TEA5777_W_MUTE_MASK (1LL << 47) +#define TEA5777_W_MUTE_SHIFT 47 +#define TEA5777_W_AM_FM_MASK (1LL << 46) +#define TEA5777_W_AM_FM_SHIFT 46 +#define TEA5777_W_STB_MASK (1LL << 45) +#define TEA5777_W_STB_SHIFT 45 + +#define TEA5777_W_IFCE_MASK (1LL << 29) +#define TEA5777_W_IFCE_SHIFT 29 +#define TEA5777_W_IFW_MASK (1LL << 28) +#define TEA5777_W_IFW_SHIFT 28 +#define TEA5777_W_HILO_MASK (1LL << 27) +#define TEA5777_W_HILO_SHIFT 27 +#define TEA5777_W_DBUS_MASK (1LL << 26) +#define TEA5777_W_DBUS_SHIFT 26 + +#define TEA5777_W_INTEXT_MASK (1LL << 24) +#define TEA5777_W_INTEXT_SHIFT 24 +#define TEA5777_W_P1_MASK (1LL << 23) +#define TEA5777_W_P1_SHIFT 23 +#define TEA5777_W_P0_MASK (1LL << 22) +#define TEA5777_W_P0_SHIFT 22 +#define TEA5777_W_PEN1_MASK (1LL << 21) +#define TEA5777_W_PEN1_SHIFT 21 +#define TEA5777_W_PEN0_MASK (1LL << 20) +#define TEA5777_W_PEN0_SHIFT 20 + +#define TEA5777_W_CHP0_MASK (1LL << 18) +#define TEA5777_W_CHP0_SHIFT 18 +#define TEA5777_W_DEEM_MASK (1LL << 17) +#define TEA5777_W_DEEM_SHIFT 17 + +#define TEA5777_W_SEARCH_MASK (1LL << 7) +#define TEA5777_W_SEARCH_SHIFT 7 +#define TEA5777_W_PROGBLIM_MASK (1LL << 6) +#define TEA5777_W_PROGBLIM_SHIFT 6 +#define TEA5777_W_UPDWN_MASK (1LL << 5) +#define TEA5777_W_UPDWN_SHIFT 5 +#define TEA5777_W_SLEV_MASK (3LL << 3) +#define TEA5777_W_SLEV_SHIFT 3 + +/* Write reg, FM specific bits */ +#define TEA5777_W_FM_PLL_MASK (0x1fffLL << 32) +#define TEA5777_W_FM_PLL_SHIFT 32 +#define TEA5777_W_FM_FREF_MASK (0x03LL << 30) +#define TEA5777_W_FM_FREF_SHIFT 30 +#define TEA5777_W_FM_FREF_VALUE 0 /* 50 kHz tune steps, 150 kHz IF */ + +#define TEA5777_W_FM_FORCEMONO_MASK (1LL << 15) +#define TEA5777_W_FM_FORCEMONO_SHIFT 15 +#define TEA5777_W_FM_SDSOFF_MASK (1LL << 14) +#define TEA5777_W_FM_SDSOFF_SHIFT 14 +#define TEA5777_W_FM_DOFF_MASK (1LL << 13) +#define TEA5777_W_FM_DOFF_SHIFT 13 + +#define TEA5777_W_FM_STEP_MASK (3LL << 1) +#define TEA5777_W_FM_STEP_SHIFT 1 + +/* Write reg, AM specific bits */ +#define TEA5777_W_AM_PLL_MASK (0x7ffLL << 34) +#define TEA5777_W_AM_PLL_SHIFT 34 +#define TEA5777_W_AM_AGCRF_MASK (1LL << 33) +#define TEA5777_W_AM_AGCRF_SHIFT 33 +#define TEA5777_W_AM_AGCIF_MASK (1LL << 32) +#define TEA5777_W_AM_AGCIF_SHIFT 32 +#define TEA5777_W_AM_MWLW_MASK (1LL << 31) +#define TEA5777_W_AM_MWLW_SHIFT 31 +#define TEA5777_W_AM_LNA_MASK (1LL << 30) +#define TEA5777_W_AM_LNA_SHIFT 30 + +#define TEA5777_W_AM_PEAK_MASK (1LL << 25) +#define TEA5777_W_AM_PEAK_SHIFT 25 + +#define TEA5777_W_AM_RFB_MASK (1LL << 16) +#define TEA5777_W_AM_RFB_SHIFT 16 +#define TEA5777_W_AM_CALLIGN_MASK (1LL << 15) +#define TEA5777_W_AM_CALLIGN_SHIFT 15 +#define TEA5777_W_AM_CBANK_MASK (0x7fLL << 8) +#define TEA5777_W_AM_CBANK_SHIFT 8 + +#define TEA5777_W_AM_DELAY_MASK (1LL << 2) +#define TEA5777_W_AM_DELAY_SHIFT 2 +#define TEA5777_W_AM_STEP_MASK (1LL << 1) +#define TEA5777_W_AM_STEP_SHIFT 1 + +/* Read reg, common bits */ +#define TEA5777_R_LEVEL_MASK (0x0f << 17) +#define TEA5777_R_LEVEL_SHIFT 17 +#define TEA5777_R_SFOUND_MASK (0x01 << 16) +#define TEA5777_R_SFOUND_SHIFT 16 +#define TEA5777_R_BLIM_MASK (0x01 << 15) +#define TEA5777_R_BLIM_SHIFT 15 + +/* Read reg, FM specific bits */ +#define TEA5777_R_FM_STEREO_MASK (0x01 << 21) +#define TEA5777_R_FM_STEREO_SHIFT 21 +#define TEA5777_R_FM_PLL_MASK 0x1fff +#define TEA5777_R_FM_PLL_SHIFT 0 + +static u32 tea5777_freq_to_v4l2_freq(struct radio_tea5777 *tea, u32 freq) +{ + return (freq * TEA5777_FM_FREQ_STEP + TEA5777_FM_IF) * 16; +} + +static int radio_tea5777_set_freq(struct radio_tea5777 *tea) +{ + u64 freq; + int res; + + freq = clamp_t(u32, tea->freq, + TEA5777_FM_RANGELOW, TEA5777_FM_RANGEHIGH) + 8; + do_div(freq, 16); /* to kHz */ + + freq -= TEA5777_FM_IF; + do_div(freq, TEA5777_FM_FREQ_STEP); + + tea->write_reg &= ~(TEA5777_W_FM_PLL_MASK | TEA5777_W_FM_FREF_MASK); + tea->write_reg |= freq << TEA5777_W_FM_PLL_SHIFT; + tea->write_reg |= TEA5777_W_FM_FREF_VALUE << TEA5777_W_FM_FREF_SHIFT; + + res = tea->ops->write_reg(tea, tea->write_reg); + if (res) + return res; + + tea->needs_write = false; + tea->read_reg = -1; + tea->freq = tea5777_freq_to_v4l2_freq(tea, freq); + + return 0; +} + +static int radio_tea5777_update_read_reg(struct radio_tea5777 *tea, int wait) +{ + int res; + + if (tea->read_reg != -1) + return 0; + + if (tea->write_before_read && tea->needs_write) { + res = radio_tea5777_set_freq(tea); + if (res) + return res; + } + + if (wait) { + if (schedule_timeout_interruptible(msecs_to_jiffies(wait))) + return -ERESTARTSYS; + } + + res = tea->ops->read_reg(tea, &tea->read_reg); + if (res) + return res; + + tea->needs_write = true; + return 0; +} + +/* + * Linux Video interface + */ + +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *v) +{ + struct radio_tea5777 *tea = video_drvdata(file); + + strlcpy(v->driver, tea->v4l2_dev->name, sizeof(v->driver)); + strlcpy(v->card, tea->card, sizeof(v->card)); + strlcat(v->card, " TEA5777", sizeof(v->card)); + strlcpy(v->bus_info, tea->bus_info, sizeof(v->bus_info)); + v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO; + v->device_caps |= V4L2_CAP_HW_FREQ_SEEK; + v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int vidioc_g_tuner(struct file *file, void *priv, + struct v4l2_tuner *v) +{ + struct radio_tea5777 *tea = video_drvdata(file); + int res; + + if (v->index > 0) + return -EINVAL; + + res = radio_tea5777_update_read_reg(tea, 0); + if (res) + return res; + + memset(v, 0, sizeof(*v)); + if (tea->has_am) + strlcpy(v->name, "AM/FM", sizeof(v->name)); + else + strlcpy(v->name, "FM", sizeof(v->name)); + v->type = V4L2_TUNER_RADIO; + v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_HWSEEK_BOUNDED; + v->rangelow = TEA5777_FM_RANGELOW; + v->rangehigh = TEA5777_FM_RANGEHIGH; + v->rxsubchans = (tea->read_reg & TEA5777_R_FM_STEREO_MASK) ? + V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO; + v->audmode = (tea->write_reg & TEA5777_W_FM_FORCEMONO_MASK) ? + V4L2_TUNER_MODE_MONO : V4L2_TUNER_MODE_STEREO; + /* shift - 12 to convert 4-bits (0-15) scale to 16-bits (0-65535) */ + v->signal = (tea->read_reg & TEA5777_R_LEVEL_MASK) >> + (TEA5777_R_LEVEL_SHIFT - 12); + + /* Invalidate read_reg, so that next call we return up2date signal */ + tea->read_reg = -1; + + return 0; +} + +static int vidioc_s_tuner(struct file *file, void *priv, + struct v4l2_tuner *v) +{ + struct radio_tea5777 *tea = video_drvdata(file); + + if (v->index) + return -EINVAL; + + if (v->audmode == V4L2_TUNER_MODE_MONO) + tea->write_reg |= TEA5777_W_FM_FORCEMONO_MASK; + else + tea->write_reg &= ~TEA5777_W_FM_FORCEMONO_MASK; + + return radio_tea5777_set_freq(tea); +} + +static int vidioc_g_frequency(struct file *file, void *priv, + struct v4l2_frequency *f) +{ + struct radio_tea5777 *tea = video_drvdata(file); + + if (f->tuner != 0) + return -EINVAL; + f->type = V4L2_TUNER_RADIO; + f->frequency = tea->freq; + return 0; +} + +static int vidioc_s_frequency(struct file *file, void *priv, + struct v4l2_frequency *f) +{ + struct radio_tea5777 *tea = video_drvdata(file); + + if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO) + return -EINVAL; + + tea->freq = f->frequency; + return radio_tea5777_set_freq(tea); +} + +static int vidioc_s_hw_freq_seek(struct file *file, void *fh, + struct v4l2_hw_freq_seek *a) +{ + struct radio_tea5777 *tea = video_drvdata(file); + u32 orig_freq = tea->freq; + unsigned long timeout; + int res, spacing = 200 * 16; /* 200 kHz */ + /* These are fixed *for now* */ + const u32 seek_rangelow = TEA5777_FM_RANGELOW; + const u32 seek_rangehigh = TEA5777_FM_RANGEHIGH; + + if (a->tuner || a->wrap_around) + return -EINVAL; + + tea->write_reg |= TEA5777_W_PROGBLIM_MASK; + if (seek_rangelow != tea->seek_rangelow) { + tea->write_reg &= ~TEA5777_W_UPDWN_MASK; + tea->freq = seek_rangelow; + res = radio_tea5777_set_freq(tea); + if (res) + goto leave; + tea->seek_rangelow = tea->freq; + } + if (seek_rangehigh != tea->seek_rangehigh) { + tea->write_reg |= TEA5777_W_UPDWN_MASK; + tea->freq = seek_rangehigh; + res = radio_tea5777_set_freq(tea); + if (res) + goto leave; + tea->seek_rangehigh = tea->freq; + } + tea->write_reg &= ~TEA5777_W_PROGBLIM_MASK; + + tea->write_reg |= TEA5777_W_SEARCH_MASK; + if (a->seek_upward) { + tea->write_reg |= TEA5777_W_UPDWN_MASK; + tea->freq = orig_freq + spacing; + } else { + tea->write_reg &= ~TEA5777_W_UPDWN_MASK; + tea->freq = orig_freq - spacing; + } + res = radio_tea5777_set_freq(tea); + if (res) + goto leave; + + timeout = jiffies + msecs_to_jiffies(5000); + for (;;) { + if (time_after(jiffies, timeout)) { + res = -ENODATA; + break; + } + + res = radio_tea5777_update_read_reg(tea, 100); + if (res) + break; + + /* + * Note we use tea->freq to track how far we've searched sofar + * this is necessary to ensure we continue seeking at the right + * point, in the write_before_read case. + */ + tea->freq = (tea->read_reg & TEA5777_R_FM_PLL_MASK); + tea->freq = tea5777_freq_to_v4l2_freq(tea, tea->freq); + + if ((tea->read_reg & TEA5777_R_SFOUND_MASK)) { + tea->write_reg &= ~TEA5777_W_SEARCH_MASK; + return 0; + } + + if (tea->read_reg & TEA5777_R_BLIM_MASK) { + res = -ENODATA; + break; + } + + /* Force read_reg update */ + tea->read_reg = -1; + } +leave: + tea->write_reg &= ~TEA5777_W_PROGBLIM_MASK; + tea->write_reg &= ~TEA5777_W_SEARCH_MASK; + tea->freq = orig_freq; + radio_tea5777_set_freq(tea); + return res; +} + +static int tea575x_s_ctrl(struct v4l2_ctrl *c) +{ + struct radio_tea5777 *tea = + container_of(c->handler, struct radio_tea5777, ctrl_handler); + + switch (c->id) { + case V4L2_CID_AUDIO_MUTE: + if (c->val) + tea->write_reg |= TEA5777_W_MUTE_MASK; + else + tea->write_reg &= ~TEA5777_W_MUTE_MASK; + + return radio_tea5777_set_freq(tea); + } + + return -EINVAL; +} + +static const struct v4l2_file_operations tea575x_fops = { + .unlocked_ioctl = video_ioctl2, + .open = v4l2_fh_open, + .release = v4l2_fh_release, + .poll = v4l2_ctrl_poll, +}; + +static const struct v4l2_ioctl_ops tea575x_ioctl_ops = { + .vidioc_querycap = vidioc_querycap, + .vidioc_g_tuner = vidioc_g_tuner, + .vidioc_s_tuner = vidioc_s_tuner, + .vidioc_g_frequency = vidioc_g_frequency, + .vidioc_s_frequency = vidioc_s_frequency, + .vidioc_s_hw_freq_seek = vidioc_s_hw_freq_seek, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct video_device tea575x_radio = { + .ioctl_ops = &tea575x_ioctl_ops, + .release = video_device_release_empty, +}; + +static const struct v4l2_ctrl_ops tea575x_ctrl_ops = { + .s_ctrl = tea575x_s_ctrl, +}; + +int radio_tea5777_init(struct radio_tea5777 *tea, struct module *owner) +{ + int res; + + tea->write_reg = (1LL << TEA5777_W_IFCE_SHIFT) | + (1LL << TEA5777_W_IFW_SHIFT) | + (1LL << TEA5777_W_INTEXT_SHIFT) | + (1LL << TEA5777_W_CHP0_SHIFT) | + (2LL << TEA5777_W_SLEV_SHIFT); + tea->freq = 90500 * 16; /* 90.5Mhz default */ + res = radio_tea5777_set_freq(tea); + if (res) { + v4l2_err(tea->v4l2_dev, "can't set initial freq (%d)\n", res); + return res; + } + + tea->vd = tea575x_radio; + video_set_drvdata(&tea->vd, tea); + mutex_init(&tea->mutex); + strlcpy(tea->vd.name, tea->v4l2_dev->name, sizeof(tea->vd.name)); + tea->vd.lock = &tea->mutex; + tea->vd.v4l2_dev = tea->v4l2_dev; + tea->fops = tea575x_fops; + tea->fops.owner = owner; + tea->vd.fops = &tea->fops; + set_bit(V4L2_FL_USE_FH_PRIO, &tea->vd.flags); + + tea->vd.ctrl_handler = &tea->ctrl_handler; + v4l2_ctrl_handler_init(&tea->ctrl_handler, 1); + v4l2_ctrl_new_std(&tea->ctrl_handler, &tea575x_ctrl_ops, + V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); + res = tea->ctrl_handler.error; + if (res) { + v4l2_err(tea->v4l2_dev, "can't initialize controls\n"); + v4l2_ctrl_handler_free(&tea->ctrl_handler); + return res; + } + v4l2_ctrl_handler_setup(&tea->ctrl_handler); + + res = video_register_device(&tea->vd, VFL_TYPE_RADIO, -1); + if (res) { + v4l2_err(tea->v4l2_dev, "can't register video device!\n"); + v4l2_ctrl_handler_free(tea->vd.ctrl_handler); + return res; + } + + return 0; +} +EXPORT_SYMBOL_GPL(radio_tea5777_init); + +void radio_tea5777_exit(struct radio_tea5777 *tea) +{ + video_unregister_device(&tea->vd); + v4l2_ctrl_handler_free(tea->vd.ctrl_handler); +} +EXPORT_SYMBOL_GPL(radio_tea5777_exit); diff --git a/drivers/media/radio/radio-tea5777.h b/drivers/media/radio/radio-tea5777.h new file mode 100644 index 0000000..55cbd78 --- /dev/null +++ b/drivers/media/radio/radio-tea5777.h @@ -0,0 +1,87 @@ +#ifndef __RADIO_TEA5777_H +#define __RADIO_TEA5777_H + +/* + * v4l2 driver for TEA5777 Philips AM/FM radio tuner chips + * + * Copyright (c) 2012 Hans de Goede + * + * Based on the ALSA driver for TEA5757/5759 Philips AM/FM radio tuner chips: + * + * Copyright (c) 2004 Jaroslav Kysela + * Copyright (c) 2012 Hans de Goede + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include +#include +#include + +#define TEA575X_FMIF 10700 +#define TEA575X_AMIF 450 + +struct radio_tea5777; + +struct radio_tea5777_ops { + /* + * Write the 6 bytes large write register of the tea5777 + * + * val represents the 6 write registers, with byte 1 from the + * datasheet being the most significant byte (so byte 5 of the u64), + * and byte 6 from the datasheet being the least significant byte. + * + * returns 0 on success. + */ + int (*write_reg)(struct radio_tea5777 *tea, u64 val); + /* + * Read the 3 bytes large read register of the tea5777 + * + * The read value gets returned in val, akin to write_reg, byte 1 from + * the datasheet is stored as the most significant byte (so byte 2 of + * the u32), and byte 3 from the datasheet gets stored as the least + * significant byte (iow byte 0 of the u32). + * + * returns 0 on success. + */ + int (*read_reg)(struct radio_tea5777 *tea, u32 *val); +}; + +struct radio_tea5777 { + struct v4l2_device *v4l2_dev; + struct v4l2_file_operations fops; + struct video_device vd; /* video device */ + bool has_am; /* Device can tune to AM freqs */ + bool write_before_read; /* must write before read quirk */ + bool needs_write; /* for write before read quirk */ + u32 freq; /* current frequency */ + u32 seek_rangelow; /* current hwseek limits */ + u32 seek_rangehigh; + u32 read_reg; + u64 write_reg; + struct mutex mutex; + struct radio_tea5777_ops *ops; + void *private_data; + u8 card[32]; + u8 bus_info[32]; + struct v4l2_ctrl_handler ctrl_handler; +}; + +int radio_tea5777_init(struct radio_tea5777 *tea, struct module *owner); +void radio_tea5777_exit(struct radio_tea5777 *tea); + +#endif /* __RADIO_TEA5777_H */ diff --git a/drivers/media/radio/radio-wl1273.c b/drivers/media/radio/radio-wl1273.c index f1b6070..e8428f5 100644 --- a/drivers/media/radio/radio-wl1273.c +++ b/drivers/media/radio/radio-wl1273.c @@ -1514,7 +1514,8 @@ static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv, tuner->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH); tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS | - V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO; + V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO | + V4L2_TUNER_CAP_HWSEEK_BOUNDED | V4L2_TUNER_CAP_HWSEEK_WRAP; if (radio->stereo) tuner->audmode = V4L2_TUNER_MODE_STEREO; diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c index 969cf49..9e38132 100644 --- a/drivers/media/radio/si470x/radio-si470x-common.c +++ b/drivers/media/radio/si470x/radio-si470x-common.c @@ -4,6 +4,7 @@ * Driver for radios with Silicon Labs Si470x FM Radio Receivers * * Copyright (c) 2009 Tobias Lorenz + * Copyright (c) 2012 Hans de Goede * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -127,14 +128,6 @@ static unsigned short space = 2; module_param(space, ushort, 0444); MODULE_PARM_DESC(space, "Spacing: 0=200kHz 1=100kHz *2=50kHz*"); -/* Bottom of Band (MHz) */ -/* 0: 87.5 - 108 MHz (USA, Europe)*/ -/* 1: 76 - 108 MHz (Japan wide band) */ -/* 2: 76 - 90 MHz (Japan) */ -static unsigned short band = 1; -module_param(band, ushort, 0444); -MODULE_PARM_DESC(band, "Band: 0=87.5..108MHz *1=76..108MHz* 2=76..90MHz"); - /* De-emphasis */ /* 0: 75 us (USA) */ /* 1: 50 us (Europe, Australia, Japan) */ @@ -152,19 +145,66 @@ static unsigned int seek_timeout = 5000; module_param(seek_timeout, uint, 0644); MODULE_PARM_DESC(seek_timeout, "Seek timeout: *5000*"); - +static const struct v4l2_frequency_band bands[] = { + { + .type = V4L2_TUNER_RADIO, + .index = 0, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO | + V4L2_TUNER_CAP_HWSEEK_BOUNDED | + V4L2_TUNER_CAP_HWSEEK_WRAP, + .rangelow = 87500 * 16, + .rangehigh = 108000 * 16, + .modulation = V4L2_BAND_MODULATION_FM, + }, + { + .type = V4L2_TUNER_RADIO, + .index = 1, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO | + V4L2_TUNER_CAP_HWSEEK_BOUNDED | + V4L2_TUNER_CAP_HWSEEK_WRAP, + .rangelow = 76000 * 16, + .rangehigh = 108000 * 16, + .modulation = V4L2_BAND_MODULATION_FM, + }, + { + .type = V4L2_TUNER_RADIO, + .index = 2, + .capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO | + V4L2_TUNER_CAP_HWSEEK_BOUNDED | + V4L2_TUNER_CAP_HWSEEK_WRAP, + .rangelow = 76000 * 16, + .rangehigh = 90000 * 16, + .modulation = V4L2_BAND_MODULATION_FM, + }, +}; /************************************************************************** * Generic Functions **************************************************************************/ /* + * si470x_set_band - set the band + */ +static int si470x_set_band(struct si470x_device *radio, int band) +{ + if (radio->band == band) + return 0; + + radio->band = band; + radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_BAND; + radio->registers[SYSCONFIG2] |= radio->band << 6; + return si470x_set_register(radio, SYSCONFIG2); +} + +/* * si470x_set_chan - set the channel */ static int si470x_set_chan(struct si470x_device *radio, unsigned short chan) { int retval; - unsigned long timeout; bool timed_out = 0; /* start tuning */ @@ -174,26 +214,12 @@ static int si470x_set_chan(struct si470x_device *radio, unsigned short chan) if (retval < 0) goto done; - /* currently I2C driver only uses interrupt way to tune */ - if (radio->stci_enabled) { - INIT_COMPLETION(radio->completion); - - /* wait till tune operation has completed */ - retval = wait_for_completion_timeout(&radio->completion, - msecs_to_jiffies(tune_timeout)); - if (!retval) - timed_out = true; - } else { - /* wait till tune operation has completed */ - timeout = jiffies + msecs_to_jiffies(tune_timeout); - do { - retval = si470x_get_register(radio, STATUSRSSI); - if (retval < 0) - goto stop; - timed_out = time_after(jiffies, timeout); - } while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) - && (!timed_out)); - } + /* wait till tune operation has completed */ + INIT_COMPLETION(radio->completion); + retval = wait_for_completion_timeout(&radio->completion, + msecs_to_jiffies(tune_timeout)); + if (!retval) + timed_out = true; if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) dev_warn(&radio->videodev.dev, "tune does not complete\n"); @@ -201,7 +227,6 @@ static int si470x_set_chan(struct si470x_device *radio, unsigned short chan) dev_warn(&radio->videodev.dev, "tune timed out after %u ms\n", tune_timeout); -stop: /* stop tuning */ radio->registers[CHANNEL] &= ~CHANNEL_TUNE; retval = si470x_set_register(radio, CHANNEL); @@ -210,48 +235,39 @@ done: return retval; } - /* - * si470x_get_freq - get the frequency + * si470x_get_step - get channel spacing */ -static int si470x_get_freq(struct si470x_device *radio, unsigned int *freq) +static unsigned int si470x_get_step(struct si470x_device *radio) { - unsigned int spacing, band_bottom; - unsigned short chan; - int retval; - /* Spacing (kHz) */ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) { /* 0: 200 kHz (USA, Australia) */ case 0: - spacing = 0.200 * FREQ_MUL; break; + return 200 * 16; /* 1: 100 kHz (Europe, Japan) */ case 1: - spacing = 0.100 * FREQ_MUL; break; + return 100 * 16; /* 2: 50 kHz */ default: - spacing = 0.050 * FREQ_MUL; break; + return 50 * 16; }; +} - /* Bottom of Band (MHz) */ - switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) { - /* 0: 87.5 - 108 MHz (USA, Europe) */ - case 0: - band_bottom = 87.5 * FREQ_MUL; break; - /* 1: 76 - 108 MHz (Japan wide band) */ - default: - band_bottom = 76 * FREQ_MUL; break; - /* 2: 76 - 90 MHz (Japan) */ - case 2: - band_bottom = 76 * FREQ_MUL; break; - }; + +/* + * si470x_get_freq - get the frequency + */ +static int si470x_get_freq(struct si470x_device *radio, unsigned int *freq) +{ + int chan, retval; /* read channel */ retval = si470x_get_register(radio, READCHAN); chan = radio->registers[READCHAN] & READCHAN_READCHAN; /* Frequency (MHz) = Spacing (kHz) x Channel + Bottom of Band (MHz) */ - *freq = chan * spacing + band_bottom; + *freq = chan * si470x_get_step(radio) + bands[radio->band].rangelow; return retval; } @@ -262,44 +278,12 @@ static int si470x_get_freq(struct si470x_device *radio, unsigned int *freq) */ int si470x_set_freq(struct si470x_device *radio, unsigned int freq) { - unsigned int spacing, band_bottom, band_top; unsigned short chan; - /* Spacing (kHz) */ - switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) { - /* 0: 200 kHz (USA, Australia) */ - case 0: - spacing = 0.200 * FREQ_MUL; break; - /* 1: 100 kHz (Europe, Japan) */ - case 1: - spacing = 0.100 * FREQ_MUL; break; - /* 2: 50 kHz */ - default: - spacing = 0.050 * FREQ_MUL; break; - }; - - /* Bottom/Top of Band (MHz) */ - switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) { - /* 0: 87.5 - 108 MHz (USA, Europe) */ - case 0: - band_bottom = 87.5 * FREQ_MUL; - band_top = 108 * FREQ_MUL; - break; - /* 1: 76 - 108 MHz (Japan wide band) */ - default: - band_bottom = 76 * FREQ_MUL; - band_top = 108 * FREQ_MUL; - break; - /* 2: 76 - 90 MHz (Japan) */ - case 2: - band_bottom = 76 * FREQ_MUL; - band_top = 90 * FREQ_MUL; - break; - }; - - freq = clamp(freq, band_bottom, band_top); + freq = clamp(freq, bands[radio->band].rangelow, + bands[radio->band].rangehigh); /* Chan = [ Freq (Mhz) - Bottom of Band (MHz) ] / Spacing (kHz) */ - chan = (freq - band_bottom) / spacing; + chan = (freq - bands[radio->band].rangelow) / si470x_get_step(radio); return si470x_set_chan(radio, chan); } @@ -309,19 +293,43 @@ int si470x_set_freq(struct si470x_device *radio, unsigned int freq) * si470x_set_seek - set seek */ static int si470x_set_seek(struct si470x_device *radio, - unsigned int wrap_around, unsigned int seek_upward) + struct v4l2_hw_freq_seek *seek) { - int retval = 0; - unsigned long timeout; + int band, retval; + unsigned int freq; bool timed_out = 0; + /* set band */ + if (seek->rangelow || seek->rangehigh) { + for (band = 0; band < ARRAY_SIZE(bands); band++) { + if (bands[band].rangelow == seek->rangelow && + bands[band].rangehigh == seek->rangehigh) + break; + } + if (band == ARRAY_SIZE(bands)) + return -EINVAL; /* No matching band found */ + } else + band = 1; /* If nothing is specified seek 76 - 108 Mhz */ + + if (radio->band != band) { + retval = si470x_get_freq(radio, &freq); + if (retval) + return retval; + retval = si470x_set_band(radio, band); + if (retval) + return retval; + retval = si470x_set_freq(radio, freq); + if (retval) + return retval; + } + /* start seeking */ radio->registers[POWERCFG] |= POWERCFG_SEEK; - if (wrap_around == 1) + if (seek->wrap_around) radio->registers[POWERCFG] &= ~POWERCFG_SKMODE; else radio->registers[POWERCFG] |= POWERCFG_SKMODE; - if (seek_upward == 1) + if (seek->seek_upward) radio->registers[POWERCFG] |= POWERCFG_SEEKUP; else radio->registers[POWERCFG] &= ~POWERCFG_SEEKUP; @@ -329,26 +337,12 @@ static int si470x_set_seek(struct si470x_device *radio, if (retval < 0) return retval; - /* currently I2C driver only uses interrupt way to seek */ - if (radio->stci_enabled) { - INIT_COMPLETION(radio->completion); - - /* wait till seek operation has completed */ - retval = wait_for_completion_timeout(&radio->completion, - msecs_to_jiffies(seek_timeout)); - if (!retval) - timed_out = true; - } else { - /* wait till seek operation has completed */ - timeout = jiffies + msecs_to_jiffies(seek_timeout); - do { - retval = si470x_get_register(radio, STATUSRSSI); - if (retval < 0) - goto stop; - timed_out = time_after(jiffies, timeout); - } while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) - && (!timed_out)); - } + /* wait till tune operation has completed */ + INIT_COMPLETION(radio->completion); + retval = wait_for_completion_timeout(&radio->completion, + msecs_to_jiffies(seek_timeout)); + if (!retval) + timed_out = true; if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) dev_warn(&radio->videodev.dev, "seek does not complete\n"); @@ -356,14 +350,13 @@ static int si470x_set_seek(struct si470x_device *radio, dev_warn(&radio->videodev.dev, "seek failed / band limit reached\n"); -stop: /* stop seeking */ radio->registers[POWERCFG] &= ~POWERCFG_SEEK; retval = si470x_set_register(radio, POWERCFG); /* try again, if timed out */ if (retval == 0 && timed_out) - return -EAGAIN; + return -ENODATA; return retval; } @@ -391,8 +384,8 @@ int si470x_start(struct si470x_device *radio) /* sysconfig 2 */ radio->registers[SYSCONFIG2] = - (0x3f << 8) | /* SEEKTH */ - ((band << 6) & SYSCONFIG2_BAND) | /* BAND */ + (0x1f << 8) | /* SEEKTH */ + ((radio->band << 6) & SYSCONFIG2_BAND) |/* BAND */ ((space << 4) & SYSCONFIG2_SPACE) | /* SPACE */ 15; /* VOLUME (max) */ retval = si470x_set_register(radio, SYSCONFIG2); @@ -583,39 +576,26 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *tuner) { stru