openwrt/staging/blogic.git
13 years ago[media] ngene: CXD2099AR Common Interface driver
Ralph Metzler [Mon, 10 Jan 2011 09:36:15 +0000 (06:36 -0300)]
[media] ngene: CXD2099AR Common Interface driver

Driver for the Common Interface Controller CXD2099AR.
Supports the CI of the cineS2 DVB-S2.

For now, data is passed through '/dev/dvb/adapterX/sec0':
- Encrypted data must be written to 'sec0'.
- Decrypted data can be read from 'sec0'.
- Setup the CAM using device 'ca0'.

Signed-off-by: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] ngene: Clean-up driver initialisation (part 1)
Oliver Endriss [Mon, 10 Jan 2011 09:36:14 +0000 (06:36 -0300)]
[media] ngene: Clean-up driver initialisation (part 1)

If tuner initialisation failed, the frontend node was not removed.
When the frontend was opened, a kernel oops occurred...

This is the first step to improve error handling during initialisation.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] ngene: Support up to 4 tuners
Oliver Endriss [Mon, 10 Jan 2011 09:36:13 +0000 (06:36 -0300)]
[media] ngene: Support up to 4 tuners

Support up to 4 tuners for cineS2 v5, duoflex & mystique v2.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] ngene: Fixes for TS input over I2S
Oliver Endriss [Mon, 10 Jan 2011 09:36:12 +0000 (06:36 -0300)]
[media] ngene: Fixes for TS input over I2S

Fix TS input over I2S.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] ngene: Firmware 18 support
Oliver Endriss [Mon, 10 Jan 2011 09:36:11 +0000 (06:36 -0300)]
[media] ngene: Firmware 18 support

Small modifications for firmware 18.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] stv090x: Optional external lock routine
Oliver Endriss [Mon, 10 Jan 2011 09:36:10 +0000 (06:36 -0300)]
[media] stv090x: Optional external lock routine

Card driver may supply its own lock routine now.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] stv090x: make sleep/wakeup specific to the demod path
Andreas Regel [Mon, 10 Jan 2011 09:36:09 +0000 (06:36 -0300)]
[media] stv090x: make sleep/wakeup specific to the demod path

The STV0900 features two demodulator paths in one chip. Thus it is not
possible to use the generic power off function of the chip when sending
one of them to standby. The other path will stop working in that case.

The sleep function now switches off functionality specific to the demod
path. The global stuff is only switched off, when both paths are in
sleep mode. The wakeup function always turns on the global functionality
and then works specific to the path.

Signed-off-by: Andreas Regel <andreas.regel@gmx.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] dib8000: Fix some wrong alignments
Mauro Carvalho Chehab [Sun, 16 Jan 2011 15:02:52 +0000 (13:02 -0200)]
[media] dib8000: Fix some wrong alignments

Something went wrong with the alignments for the if clause at line 2113.
Instead of using one tab for alignments, it used 3 tabs, plus one space
character.

WARNING: suspect code indent for conditional statements (8, 33)
+ if ((state->fe[0]->dtv_property_cache.delivery_system != SYS_ISDBT) ||
[...]
+  int i = 80000;

WARNING: suspect code indent for conditional statements (33, 41)
+  for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+  dib8000_set_bandwidth(state->fe[index_frontend], fe->dtv_property_cache.bandwidth_hz / 1000);

WARNING: suspect code indent for conditional statements (33, 41)
+  do {
+  msleep(20);

WARNING: suspect code indent for conditional statements (41, 49)
+  for (index_frontend = 0; (index_frontend < MAX_NUMBER_OF_FRONTENDS) && (state->fe[index_frontend] != NULL); index_frontend++) {
+  if (((tune_failed >> index_frontend) & 0x1) == 0) {

WARNING: suspect code indent for conditional statements (49, 57)
+  if (((tune_failed >> index_frontend) & 0x1) == 0) {
+  found = dib8000_autosearch_irq(state->fe[index_frontend]);

WARNING: suspect code indent for conditional statements (41, 49)
+  if ((nbr_pending == 0) && (exit_condition == 0))
+  exit_condition = 1;

Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] dib7000p: Fix 4-byte wrong alignments for some case statements
Mauro Carvalho Chehab [Sun, 16 Jan 2011 15:01:20 +0000 (13:01 -0200)]
[media] dib7000p: Fix 4-byte wrong alignments for some case statements

ERROR: switch and case should be at the same indent
  switch (ch->u.ofdm.transmission_mode) {
[...]
+    case TRANSMISSION_MODE_4K:

WARNING: please, no spaces at the start of a line
+    case TRANSMISSION_MODE_4K:$

ERROR: switch and case should be at the same indent
  switch (ch->u.ofdm.transmission_mode) {
[...]
+    case TRANSMISSION_MODE_4K:

WARNING: please, no spaces at the start of a line
+    case TRANSMISSION_MODE_4K:$

ERROR: switch and case should be at the same indent
  switch (ch->u.ofdm.transmission_mode) {
[...]
+    case TRANSMISSION_MODE_4K:

WARNING: please, no spaces at the start of a line
+    case TRANSMISSION_MODE_4K:$

Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] DiBxxxx: Codingstype updates
Olivier Grenie [Tue, 4 Jan 2011 16:08:14 +0000 (13:08 -0300)]
[media] DiBxxxx: Codingstype updates

This patchs fix several conding-style violations.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] DiB0700: add support for several board-layouts
Olivier Grenie [Tue, 4 Jan 2011 08:42:19 +0000 (05:42 -0300)]
[media] DiB0700: add support for several board-layouts

This patchs adds support for DiBcom's NIM8096MD, NIM9090M, NIM9090MD,
NIM7090, TFE7090PVR (no diversity) reference designs.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] DiB7090: add support for the dib7090 based
Olivier Grenie [Tue, 4 Jan 2011 07:54:31 +0000 (04:54 -0300)]
[media] DiB7090: add support for the dib7090 based

This patch adds support for the SoC DiB7090 DVB-T demodulator and its
melt-in UHF/VHF RF tuner.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] DIB9000: initial support added
Olivier Grenie [Tue, 4 Jan 2011 07:28:59 +0000 (04:28 -0300)]
[media] DIB9000: initial support added

This patchs add initial support for the DiB9000-device. This
demodulator is firmware-driven.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] DiB0090: misc improvements
Olivier Grenie [Tue, 4 Jan 2011 07:27:11 +0000 (04:27 -0300)]
[media] DiB0090: misc improvements

This patch adds several performance improvements and prepares the
usage of firmware-based devices.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] DiBx000: add addition i2c-interface names
Olivier Grenie [Mon, 3 Jan 2011 18:39:35 +0000 (15:39 -0300)]
[media] DiBx000: add addition i2c-interface names

This patch adds the possibitity to use different I2C-ports to talk to
slave-devices than the standard ones.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] DiB8000: add diversity support
Olivier Grenie [Mon, 3 Jan 2011 18:33:37 +0000 (15:33 -0300)]
[media] DiB8000: add diversity support

This patch adds a set a functions which allow the handling of multiple
demodulator in a diversity reception chain.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] DiB0700: add function to change I2C-speed
Olivier Grenie [Mon, 3 Jan 2011 18:30:14 +0000 (15:30 -0300)]
[media] DiB0700: add function to change I2C-speed

This commit adds a function to the DiB0700 USB driver which allows
drivers to change the I2C clock speed.

Signed-off-by: Olivier Grenie <olivier.grenie@dibcom.fr>
Signed-off-by: Patrick Boettcher <patrick.boettcher@dibcom.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] Add v4l2 subdev driver for NOON010PC30L image sensor
Sylwester Nawrocki [Mon, 3 Jan 2011 11:07:30 +0000 (08:07 -0300)]
[media] Add v4l2 subdev driver for NOON010PC30L image sensor

Add I2C/V4L2 subdev driver for Siliconfile NOON010PC30 CIF camera.
The driver implements basic functionality, i.e. CIF/QCIF/QQCIF
resolution and color format selection, automatic/manual color
balance control. Other functions like cropping, rotation/flip,
exposure etc. can be easily implemented if needed.

Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] Add chip identity for NOON010PC30 camera sensor
Sylwester Nawrocki [Tue, 30 Nov 2010 15:54:56 +0000 (12:54 -0300)]
[media] Add chip identity for NOON010PC30 camera sensor

Add ID for NOON010PC30 camera chip and reserve ID range for
Siliconfile sensors.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: fimc_stop_capture bug fix
Sungchun Kang [Thu, 30 Dec 2010 05:35:28 +0000 (02:35 -0300)]
[media] s5p-fimc: fimc_stop_capture bug fix

When is called fimc_stop_capture, it seems that wait_event_timeout
used improperly. It should be wake up by irq handler.

Reviewed-by Jonghun Han <jonghun.han@samsung.com>

Signed-off-by: Sungchun Kang <sungchun.kang@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: fix MSCTRL.FIFO_CTRL for performance enhancement
Hyunwoong Kim [Wed, 29 Dec 2010 10:08:32 +0000 (07:08 -0300)]
[media] s5p-fimc: fix MSCTRL.FIFO_CTRL for performance enhancement

This patch fixes the value of FIFO_CTRL in MSCTRL.
Main-scaler has the value to specify a basis FIFO control of input DMA.

The description of FIFO_CTRL has been changed as below.
0 = FIFO Empty (Next burst transaction is possible when FIFO is empty)
1 = FIFO Full (Next burst transaction is possible except Full FIFO)

Value '1' is recommended to enhance the FIMC operation performance.

Reviewed-by: Jonghun Han <jonghun.han@samsung.com>
Signed-off-by: Hyunwoong Kim <khw0178.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Support stop_streaming and job_abort
Hyunwoong Kim [Wed, 29 Dec 2010 07:47:49 +0000 (04:47 -0300)]
[media] s5p-fimc: Support stop_streaming and job_abort

This patch adds callback functions, stop_streaming and job_abort,
to abort or finish any DMA in progress. stop_streaming is called
by videobuf2 framework and job_abort is called by m2m framework.
ST_M2M_PEND state is added to discard the next job.

Reviewed-by: Jonghun Han <jonghun.han@samsung.com>
Signed-off-by: Hyunwoong Kim <khw0178.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: update checking scaling ratio range
Hyunwoong Kim [Wed, 29 Dec 2010 01:12:43 +0000 (22:12 -0300)]
[media] s5p-fimc: update checking scaling ratio range

Horizontal and vertical scaling range are according to the following equations.
If (SRC_Width >= 64 x DST_Width) { Exit(-1);  /* Out of Horizontal scale range}
If (SRC_Height >= 64 x DST_Height) { Exit(-1);  /* Out of Vertical scale range}

fimc_check_scaler_ratio() is used to check if horizontal and vertical
scale range are valid or not. To use fimc_check_scaler_ratio,
source and destination format should be set by VIDIOC_S_FMT.
And in case of scaling up, it doesn't have to check the scale range.

Reviewed-by: Jonghun Han <jonghun.han@samsung.com>
Signed-off-by: Hyunwoong Kim <khw0178.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Move scaler details handling to the register API file
Sylwester Nawrocki [Tue, 28 Dec 2010 14:37:55 +0000 (11:37 -0300)]
[media] s5p-fimc: Move scaler details handling to the register API file

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Configure scaler registers depending on FIMC version
Hyunwoong Kim [Tue, 28 Dec 2010 14:27:13 +0000 (11:27 -0300)]
[media] s5p-fimc: Configure scaler registers depending on FIMC version

The main scaler has four SFRs for main scaler ratio depending on FIMC version.
FIMC 4.x has only two SFRs and FIMC 5.x has four SFRs for main scaler.
Those are MainHorRatio, MainHorRatio_ext, MainVerRatio and MainverRatio_ext.

The FIMC 5.x has 15 bit resolution for scaling ratio as below.
{MainHorRatio,MainHorRatio_ext} = {[14:6],[5:0]}.
{MainVerRatio,MainVerRatio_ext} = {[14:6],[5:0]}.
MainHorRatio = CISCCTRL[24:16], MainHorRatio_ext = CIEXTEN[15:10]
MainVerRatio = CISCCTRL[8:0],   MainVerRatio_ext = CIEXTEN[5:0]

This patch supports FIMC 4.x and FIMC 5.x using platform_device_id::driver_data.

Reviewed-by: Jonghun Han <jonghun.han@samsung.com>
Signed-off-by: Hyunwoong Kim <khw0178.kim@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: fix the value of YUV422 1-plane formats
Hyunwoong Kim [Wed, 22 Dec 2010 03:56:05 +0000 (00:56 -0300)]
[media] s5p-fimc: fix the value of YUV422 1-plane formats

Some color formats are mismatched in s5p-fimc driver.
CIOCTRL[1:0], order422_out, should be set 2b'00 not 2b'11
to use V4L2_PIX_FMT_YUYV. Because in V4L2 standard V4L2_PIX_FMT_YUYV means
"start + 0: Y'00 Cb00 Y'01 Cr00 Y'02 Cb01 Y'03 Cr01". According to datasheet
2b'00 is right value for V4L2_PIX_FMT_YUYV.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Add control of the external sensor clock
Sylwester Nawrocki [Mon, 27 Dec 2010 18:34:43 +0000 (15:34 -0300)]
[media] s5p-fimc: Add control of the external sensor clock

Manage the camera sensor clock in the host driver rather than
leaving this task for sensor drivers. The clock frequency
must be passed in the sensor's and host driver's platform data.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Enable simultaneous rotation and flipping
Sylwester Nawrocki [Mon, 27 Dec 2010 17:47:32 +0000 (14:47 -0300)]
[media] s5p-fimc: Enable simultaneous rotation and flipping

Map all (0, 90, 180, 270) deg counterclockwise rotation and
horizontal and vertical flip controls to (0, 90) deg rotation,
horizontal and vertical flip transformations available
in the device.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Use default input DMA burst count
Sylwester Nawrocki [Wed, 8 Dec 2010 15:48:23 +0000 (12:48 -0300)]
[media] s5p-fimc: Use default input DMA burst count

Increase the input DMA "successive burst count" to default
value 4 to improve DMA performance. Minor cleanup.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Enable interworking without subdev s_stream
Sylwester Nawrocki [Mon, 27 Dec 2010 18:05:58 +0000 (15:05 -0300)]
[media] s5p-fimc: Enable interworking without subdev s_stream

Prevent VIDIOC_STREAMON failing when s_stream callback is
not implemented by a sensor subdev driver.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Derive camera bus width from mediabus pixelcode
Sylwester Nawrocki [Mon, 27 Dec 2010 18:02:16 +0000 (15:02 -0300)]
[media] s5p-fimc: Derive camera bus width from mediabus pixelcode

Remove bus_width from s5p_fimc_isp_info data structure.
Determine camera data bus width based on mediabus pixel format.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Rename s3c_fimc* to s5p_fimc*
Sylwester Nawrocki [Mon, 27 Dec 2010 17:42:15 +0000 (14:42 -0300)]
[media] s5p-fimc: Rename s3c_fimc* to s5p_fimc*

Change s3c_fimc.h header file name to s5p_fimc.h, replace s3c_fimc_*
names with s5p_fimc_*. s3c_fimc need to be reserved for S3C series
and s5p-fimc driver will not cover CAMIF devices in S3C SoC series.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Use v4l core mutex in ioctl and file operations
Sylwester Nawrocki [Wed, 1 Dec 2010 13:25:18 +0000 (10:25 -0300)]
[media] s5p-fimc: Use v4l core mutex in ioctl and file operations

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Conversion to multiplanar formats
Sylwester Nawrocki [Wed, 8 Dec 2010 17:05:08 +0000 (14:05 -0300)]
[media] s5p-fimc: Conversion to multiplanar formats

Conversion to multiplanar color formats and minor cleanup.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] s5p-fimc: Porting to videobuf 2
Sylwester Nawrocki [Wed, 1 Dec 2010 13:14:59 +0000 (10:14 -0300)]
[media] s5p-fimc: Porting to videobuf 2

Porting to videobuf 2 and minor cleanup.
Separate videobuf_queue_ops are are created for m2m
and capture video nodes.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: Add DocBook documentation for YU12M, NV12M image formats
Sylwester Nawrocki [Sun, 9 Jan 2011 12:01:10 +0000 (09:01 -0300)]
[media] v4l: Add DocBook documentation for YU12M, NV12M image formats

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: Add multiplanar format fourccs for s5p-fimc driver
Sylwester Nawrocki [Tue, 28 Dec 2010 15:32:39 +0000 (12:32 -0300)]
[media] v4l: Add multiplanar format fourccs for s5p-fimc driver

Add definitions for format with color planes non-contiguous
in physical memory. These formats apply only if the V4L2 multiplane
extension is used.

V4L2_PIX_FMT_NV12M   - 2-plane Y/CbCr
V4L2_PIX_FMT_NV12MT  - 2-plane Y/CbCr tiled (64x32 pixel macroblocks)
V4L2_PIX_FMT_YUV420M - 3-plane Y/Cb/Cr

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: mem2mem: port m2m_testdev to vb2
Marek Szyprowski [Wed, 12 Jan 2011 09:50:55 +0000 (06:50 -0300)]
[media] v4l: mem2mem: port m2m_testdev to vb2

This patch ports mem2mem test device to videobuf2 framework.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: mem2mem: port to videobuf2
Marek Szyprowski [Wed, 12 Jan 2011 09:50:24 +0000 (06:50 -0300)]
[media] v4l: mem2mem: port to videobuf2

Port memory-to-memory framework to videobuf2 framework.

Add support for multi-planar Video for Linux 2 API extensions to the
memory-to-memory driver framework.

Based on the original patch written by Pawel Osciak.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] Add multi-planar API documentation
Pawel Osciak [Fri, 7 Jan 2011 04:41:33 +0000 (01:41 -0300)]
[media] Add multi-planar API documentation

Add DocBook documentation for the new multi-planar API extensions to the
Video for Linux 2 API DocBook.

Signed-off-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] Fix mmap() example in the V4L2 API DocBook
Pawel Osciak [Wed, 12 Jan 2011 08:57:26 +0000 (05:57 -0300)]
[media] Fix mmap() example in the V4L2 API DocBook

Correct ioctl return value handling and fix coding style issues.

[mchehab@redhat.com: return -1 is OK, according with ioctl manpages. Reverting ioctl changes]
Signed-off-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] vb2 core: Fix a few printk warnings
Mauro Carvalho Chehab [Tue, 11 Jan 2011 20:12:34 +0000 (17:12 -0300)]
[media] vb2 core: Fix a few printk warnings

drivers/media/video/videobuf2-core.c: In function ‘__vb2_perform_fileio’:
drivers/media/video/videobuf2-core.c:1638: warning: format ‘%ld’ expects type ‘long int’, but argument 4 has type ‘size_t’
drivers/media/video/videobuf2-core.c:1697: warning: format ‘%ld’ expects type ‘long int’, but argument 2 has type ‘size_t’
drivers/media/video/videobuf2-core.c:1703: warning: format ‘%ld’ expects type ‘long int’, but argument 2 has type ‘size_t’

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: videobuf2: add read() and write() emulator
Marek Szyprowski [Mon, 6 Dec 2010 08:56:55 +0000 (05:56 -0300)]
[media] v4l: videobuf2: add read() and write() emulator

Add a generic file io (read and write) emulator for videobuf2. It uses
MMAP memory type buffers and generic vb2 calls: req_bufs, qbuf and
dqbuf. Video date is being copied from mmap buffers to userspace with
standard copy_to_user() function. To add support for file io the driver
needs to provide an additional callback - read_setup or write_setup. It
should provide the default number of buffers used by emulator and flags.

With these flags one can detemine the style of read() or write()
emulation. By default 'streaming' style is used. With
VB2_FILEIO_READ_ONCE flag one can select 'one shot' mode for read()
emulator. With VB2_FILEIO_WRITE_IMMEDIATE flag one can select immediate
conversion of write calls to qbuf for write() emulator, so the vb2 will
not wait until each buffer is filled completely before queueing it to
the driver.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: videobuf2: add DMA scatter/gather allocator
Andrzej Pietrasiewicz [Mon, 29 Nov 2010 14:53:34 +0000 (11:53 -0300)]
[media] v4l: videobuf2: add DMA scatter/gather allocator

Add an implementation of DMA scatter/gather allocator and handling
routines for videobuf2.

For mmap operation mode it is implemented on top of
alloc_page + sg_set_page/_free_page.

For userptr operation mode it is implemented on top of
get_user_pages + sg_set_page/put_page.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: videobuf2: add DMA coherent allocator
Pawel Osciak [Mon, 11 Oct 2010 13:59:36 +0000 (10:59 -0300)]
[media] v4l: videobuf2: add DMA coherent allocator

Add an implementation of DMA coherent memory allocator and handling
routines for videobuf2, implemented on top of dma_alloc_coherent() call.

Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: videobuf2: add vmalloc allocator
Pawel Osciak [Mon, 11 Oct 2010 13:58:53 +0000 (10:58 -0300)]
[media] v4l: videobuf2: add vmalloc allocator

Add an implementation of contiguous virtual memory allocator and handling
routines for videobuf2, implemented on top of vmalloc()/vfree() calls.

Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: videobuf2: add generic memory handling routines
Marek Szyprowski [Thu, 9 Dec 2010 13:20:47 +0000 (10:20 -0300)]
[media] v4l: videobuf2: add generic memory handling routines

Add generic memory handling routines for userspace pointer handling,
contiguous memory verification and mapping.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: add videobuf2 Video for Linux 2 driver framework
Pawel Osciak [Mon, 11 Oct 2010 13:56:41 +0000 (10:56 -0300)]
[media] v4l: add videobuf2 Video for Linux 2 driver framework

Videobuf2 is a Video for Linux 2 API-compatible driver framework for
multimedia devices. It acts as an intermediate layer between userspace
applications and device drivers. It also provides low-level, modular
memory management functions for drivers.

Videobuf2 eases driver development, reduces drivers' code size and aids in
proper and consistent implementation of V4L2 API in drivers.

Videobuf2 memory management backend is fully modular. This allows custom
memory management routines for devices and platforms with non-standard
memory management requirements to be plugged in, without changing the
high-level buffer management functions and API.

The framework provides:
- implementations of streaming I/O V4L2 ioctls and file operations
- high-level video buffer, video queue and state management functions
- video buffer memory allocation and management

Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: Add compat functions for the multi-planar API
Pawel Osciak [Thu, 29 Jul 2010 17:56:47 +0000 (14:56 -0300)]
[media] v4l: Add compat functions for the multi-planar API

Add multi-planar ioctl handling to the 32bit compatibility layer.

[mchehab@redhat.com: Merged with a fixup patch from Pawel]
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: Add multi-planar ioctl handling code
Pawel Osciak [Thu, 23 Dec 2010 07:15:27 +0000 (04:15 -0300)]
[media] v4l: Add multi-planar ioctl handling code

Add multi-planar API core ioctl handling and conversion functions.

[mchehab@redhat.com: CondingStyle fixup]
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] v4l: Add multi-planar API definitions to the V4L2 API
Pawel Osciak [Thu, 29 Jul 2010 17:44:25 +0000 (14:44 -0300)]
[media] v4l: Add multi-planar API definitions to the V4L2 API

Multi-planar API is as a backwards-compatible extension of the V4L2 API,
which allows video buffers to consist of one or more planes. Planes are
separate memory buffers; each has its own mapping, backed by usually
separate physical memory buffers.

Many different uses for the multi-planar API are possible, examples
include:
- embedded devices requiring video components to be placed in physically
separate buffers, e.g. for Samsung S3C/S5P SoC series' video codec,
Y and interleaved Cb/Cr components reside in buffers in different
memory banks;
- applications may receive (or choose to store) video data of one video
buffer in separate memory buffers; such data would have to be temporarily
copied together into one buffer before passing it to a V4L2 device;
- applications or drivers may want to pass metadata related to a buffer and
it may not be possible to place it in the same buffer, together with video
data.

[mchehab@redhat.com: CodingStyle fixes]
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] technisat-usb2: Don't use a deprecated call
Mauro Carvalho Chehab [Mon, 10 Jan 2011 23:42:12 +0000 (21:42 -0200)]
[media] technisat-usb2: Don't use a deprecated call

drivers/media/dvb/dvb-usb/technisat-usb2.c: In function ‘technisat_usb2_disconnect’:
drivers/media/dvb/dvb-usb/technisat-usb2.c:770: warning: ‘cancel_rearming_delayed_work’ is deprecated (declared at include/linux/workqueue.h:421)

Cc: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] technisat-usb2: added driver for Technisat's USB2.0 DVB-S/S2 receiver
Patrick Boettcher [Sun, 31 Oct 2010 19:24:19 +0000 (16:24 -0300)]
[media] technisat-usb2: added driver for Technisat's USB2.0 DVB-S/S2 receiver

This patch is adding support for Technisat's new USB2.0 DVB-S/S2 receiver
device. The development was sponsored by Technisat.

The Green led is toggle depending on the frontend-state. The Red LED is turned
on all the time.

The MAC address reading from the EEPROM along with the
LRC-method to check whether its valid.

Support for the IR-receiver of the Technisat USB2 box. The keys of
small, black remote-control are built-in, repeated key behaviour are
simulated.

The i2c-mutex of the dvb-usb-structure is used as a general mutex for
USB requests, as there are 3 threads racing for atomic requests
consisting of multiple usb-requests.

A module option is there which disables the toggling of LEDs by the
driver on certain triggers. Useful when being used in a "dark"
environment.

[mchehab@redhat.com: Fix merge conflicts with RC renaming patches]
Signed-off-by: Martin Wilks <m.wilks@technisat.com>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] stv090x: add tei-field to config-structure
Patrick Boettcher [Sat, 9 Oct 2010 13:12:34 +0000 (10:12 -0300)]
[media] stv090x: add tei-field to config-structure

Some backends want to receive the full transport stream including
uncorrected packets. To have that feature this patchs add a field to
the config-structure called TEI (transport stream error indicator).

Cc: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: Martin Wilks <m.wilks@technisat.com>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] stv090x: added function to control GPIOs from the outside
Patrick Boettcher [Sun, 10 Oct 2010 16:45:54 +0000 (13:45 -0300)]
[media] stv090x: added function to control GPIOs from the outside

This patch STV090X adds and exports a function to control the GPIOs of
the stv090x-devices.

Cc: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: Martin Wilks <m.wilks@technisat.com>
Signed-off-by: Patrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years agoLinux 2.6.38
Linus Torvalds [Tue, 15 Mar 2011 01:20:32 +0000 (18:20 -0700)]
Linux 2.6.38

13 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux...
Linus Torvalds [Mon, 14 Mar 2011 22:20:39 +0000 (15:20 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/dhowells/linux-2.6-mn10300

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300:
  MN10300: atomic_read() should ensure it emits a load
  MN10300: The SMP_ICACHE_INV_FLUSH_RANGE IPI command does not exist
  MN10300: Proper use of macros get_user() in the case of incremented pointers

13 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Mon, 14 Mar 2011 22:20:12 +0000 (15:20 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/upstream-linus

* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (26 commits)
  MIPS: Alchemy: Fix reset for MTX-1 and XXS1500
  MIPS: MTX-1: Make au1000_eth probe all PHY addresses
  MIPS: Jz4740: Add HAVE_CLK
  MIPS: Move idle task creation to work queue
  MIPS, Perf-events: Use unsigned delta for right shift in event update
  MIPS, Perf-events: Work with the new callchain interface
  MIPS, Perf-events: Fix event check in validate_event()
  MIPS, Perf-events: Work with the new PMU interface
  MIPS, Perf-events: Work with irq_work
  MIPS: Fix always CONFIG_LOONGSON_UART_BASE=y
  MIPS: Loongson: Fix potentially wrong string handling
  MIPS: Fix GCC-4.6 'set but not used' warning in arch/mips/mm/init.c
  MIPS: Fix GCC-4.6 'set but not used' warning in ieee754int.h
  MIPS: Remove unused code from arch/mips/kernel/syscall.c
  MIPS: Fix GCC-4.6 'set but not used' warning in signal*.c
  MIPS: MSP: Fix MSP71xx bpci interrupt handler return value
  MIPS: Select R4K timer lib for all MSP platforms
  MIPS: Loongson: Remove ad-hoc cmdline default
  MIPS: Clear the correct flag in sysmips(MIPS_FIXADE, ...).
  MIPS: Add an unreachable return statement to satisfy buggy GCCs.
  ...

13 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 14 Mar 2011 22:19:09 +0000 (15:19 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: ce4100: Set pci ops via callback instead of module init
  x86/mm: Fix pgd_lock deadlock
  x86/mm: Handle mm_fault_error() in kernel space
  x86: Don't check for BIOS corruption in first 64K when there's no need to

13 years agoRevert "oom: oom_kill_process: fix the child_points logic"
Linus Torvalds [Mon, 14 Mar 2011 22:17:07 +0000 (15:17 -0700)]
Revert "oom: oom_kill_process: fix the child_points logic"

This reverts the parent commit.  I hate doing that, but it's generating
some discussion ("half of it is right"), and since I am planning on
doing the 2.6.38 release later today we can punt it to stable if
required. Let's not rock the boat right now.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agooom: oom_kill_process: fix the child_points logic
Oleg Nesterov [Mon, 14 Mar 2011 19:05:30 +0000 (20:05 +0100)]
oom: oom_kill_process: fix the child_points logic

oom_kill_process() starts with victim_points == 0.  This means that
(most likely) any child has more points and can be killed erroneously.

Also, "children has a different mm" doesn't match the reality, we should
check child->mm != t->mm.  This check is not exactly correct if t->mm ==
NULL but this doesn't really matter, oom_kill_task() will kill them
anyway.

Note: "Kill all processes sharing p->mm" in oom_kill_task() is wrong
too.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMIPS: Alchemy: Fix reset for MTX-1 and XXS1500
Florian Fainelli [Mon, 21 Feb 2011 13:28:02 +0000 (14:28 +0100)]
MIPS: Alchemy: Fix reset for MTX-1 and XXS1500

Since commit 32fd6901 (MIPS: Alchemy: get rid of common/reset.c)
Alchemy-based boards use their own reset function. For MTX-1 and XXS1500,
the reset function pokes at the BCSR.SYSTEM_RESET register, but this does
not work. According to Bruno Randolf, this was not tested when written.

Previously, the generic au1000_restart() routine called the board specific
reset function, which for MTX-1 and XXS1500 did not work, but finally made
a jump to the reset vector, which really triggers a system restart. Fix
reboot for both targets by jumping to the reset vector.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2093/
Acked-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: MTX-1: Make au1000_eth probe all PHY addresses
Florian Fainelli [Sun, 27 Feb 2011 18:53:53 +0000 (19:53 +0100)]
MIPS: MTX-1: Make au1000_eth probe all PHY addresses

When au1000_eth probes the MII bus for PHY address, if we do not set
au1000_eth platform data's phy_search_highest_address, the MII probing
logic will exit early and will assume a valid PHY is found at address 0.
For MTX-1, the PHY is at address 31, and without this patch, the link
detection/speed/duplex would not work correctly.

CC: stable@kernel.org
Signed-off-by: Florian Fainelli <florian@openwrt.org>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2111/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Jz4740: Add HAVE_CLK
Maurus Cuelenaere [Mon, 28 Feb 2011 23:20:01 +0000 (00:20 +0100)]
MIPS: Jz4740: Add HAVE_CLK

Jz4740 supports the clock framework but doesn't have HAVE_CLK defined,
so define it!

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
To: linux-mips@linux-mips.org
To: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2112/
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Move idle task creation to work queue
Maksim Rayskiy [Sat, 12 Feb 2011 18:21:32 +0000 (10:21 -0800)]
MIPS: Move idle task creation to work queue

To avoid forking usermode thread when creating an idle task, move fork_idle
to a work queue.

If kernel starts with maxcpus= option which does not bring all available
cpus online at boot time, idle tasks for offline cpus are not created. If
later offline cpus are hotplugged through sysfs, __cpu_up is called in
the context of the user task, and fork_idle copies its non-zero mm
pointer.  This causes BUG() in per_cpu_trap_init.

This also avoids issues with resource limits of the CPU writing to sysfs,
containers, maybe others.

Signed-off-by: Maksim Rayskiy <mrayskiy@broadcom.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2070/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS, Perf-events: Use unsigned delta for right shift in event update
Deng-Cheng Zhu [Fri, 21 Jan 2011 08:19:21 +0000 (16:19 +0800)]
MIPS, Perf-events: Use unsigned delta for right shift in event update

Leverage the commit for ARM by Will Deacon:

446a5a8b1eb91a6990e5c8fe29f14e7a95b69132
    ARM: 6205/1: perf: ensure counter delta is treated as unsigned

    Hardware performance counters on ARM are 32-bits wide but atomic64_t
    variables are used to represent counter data in the hw_perf_event structure.

    The armpmu_event_update function right-shifts a signed 64-bit delta variable
    and adds the result to the event count. This can lead to shifting in sign-bits
    if the MSB of the 32-bit counter value is set. This results in perf output
    such as:

     Performance counter stats for 'sleep 20':

     18446744073460670464  cycles             <-- 0xFFFFFFFFF12A6000
            7783773  instructions             #      0.000 IPC
                465  context-switches
                161  page-faults
            1172393  branches

       20.154242147  seconds time elapsed

    This patch ensures that the delta value is treated as unsigned so that the
    right shift sets the upper bits to zero.

Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
To: a.p.zijlstra@chello.nl
To: fweisbec@gmail.com
To: will.deacon@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: wuzhangjin@gmail.com
Cc: paulus@samba.org
Cc: mingo@elte.hu
Cc: acme@redhat.com
Cc: matt@console-pimps.org
Cc: sshtylyov@mvista.com
Patchwork: http://patchwork.linux-mips.org/patch/2015/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS, Perf-events: Work with the new callchain interface
Deng-Cheng Zhu [Fri, 21 Jan 2011 08:19:20 +0000 (16:19 +0800)]
MIPS, Perf-events: Work with the new callchain interface

This is the MIPS part of the following commits by Frederic Weisbecker:

f72c1a931e311bb7780fee19e41a89ac42cab50e
    perf: Factorize callchain context handling

    Store the kernel and user contexts from the generic layer instead
    of archs, this gathers some repetitive code.

56962b4449af34070bb1994621ef4f0265eed4d8
    perf: Generalize some arch callchain code

    - Most archs use one callchain buffer per cpu, except x86 that needs
      to deal with NMIs. Provide a default perf_callchain_buffer()
      implementation that x86 overrides.

    - Centralize all the kernel/user regs handling and invoke new arch
      handlers from there: perf_callchain_user() / perf_callchain_kernel()
      That avoid all the user_mode(), current->mm checks and so...

    - Invert some parameters in perf_callchain_*() helpers: entry to the
      left, regs to the right, following the traditional (dst, src).

70791ce9ba68a5921c9905ef05d23f62a90bc10c
    perf: Generalize callchain_store()

    callchain_store() is the same on every archs, inline it in
    perf_event.h and rename it to perf_callchain_store() to avoid
    any collision.

    This removes repetitive code.

c1a65932fd7216fdc9a0db8bbffe1d47842f862c
    perf: Drop unappropriate tests on arch callchains

    Drop the TASK_RUNNING test on user tasks for callchains as
    this check doesn't seem to make any sense.

    Also remove the tests for !current that is not supposed to
    happen and current->pid as this should be handled at the
    generic level, with exclude_idle attribute.

Reported-by: Wu Zhangjin <wuzhangjin@gmail.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
To: a.p.zijlstra@chello.nl
To: will.deacon@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: paulus@samba.org
Cc: mingo@elte.hu
Cc: acme@redhat.com
Cc: dengcheng.zhu@gmail.com
Cc: matt@console-pimps.org
Cc: sshtylyov@mvista.com
Patchwork: http://patchwork.linux-mips.org/patch/2014/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS, Perf-events: Fix event check in validate_event()
Deng-Cheng Zhu [Fri, 21 Jan 2011 08:19:19 +0000 (16:19 +0800)]
MIPS, Perf-events: Fix event check in validate_event()

Ignore events that are in off/error state or belong to a different PMU.

This patch originates from the following commit for ARM by Will Deacon:

65b4711ff513767341aa1915c822de6ec0de65cb
    ARM: 6352/1: perf: fix event validation

    The validate_event function in the ARM perf events backend has the
    following problems:

    1.) Events that are disabled count towards the cost.
    2.) Events associated with other PMUs [for example, software events or
        breakpoints] do not count towards the cost, but do fail validation,
        causing the group to fail.

    This patch changes validate_event so that it ignores events in the
    PERF_EVENT_STATE_OFF state or that are scheduled for other PMUs.

Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
To: a.p.zijlstra@chello.nl
To: fweisbec@gmail.com
To: will.deacon@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: wuzhangjin@gmail.com
Cc: paulus@samba.org
Cc: mingo@elte.hu
Cc: acme@redhat.com
Cc: dengcheng.zhu@gmail.com
Cc: matt@console-pimps.org
Cc: sshtylyov@mvista.com
Cc: ddaney@caviumnetworks.com
Patchwork: http://patchwork.linux-mips.org/patch/2013/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS, Perf-events: Work with the new PMU interface
Deng-Cheng Zhu [Fri, 21 Jan 2011 08:19:18 +0000 (16:19 +0800)]
MIPS, Perf-events: Work with the new PMU interface

This is the MIPS part of the following commits by Peter Zijlstra:

a4eaf7f14675cb512d69f0c928055e73d0c6d252
    perf: Rework the PMU methods

    Replace pmu::{enable,disable,start,stop,unthrottle} with
    pmu::{add,del,start,stop}, all of which take a flags argument.

    The new interface extends the capability to stop a counter while
    keeping it scheduled on the PMU. We replace the throttled state with
    the generic stopped state.

    This also allows us to efficiently stop/start counters over certain
    code paths (like IRQ handlers).

    It also allows scheduling a counter without it starting, allowing for
    a generic frozen state (useful for rotating stopped counters).

    The stopped state is implemented in two different ways, depending on
    how the architecture implemented the throttled state:

     1) We disable the counter:
        a) the pmu has per-counter enable bits, we flip that
        b) we program a NOP event, preserving the counter state

     2) We store the counter state and ignore all read/overflow events

For MIPSXX, the stopped state is implemented in the way of 1.b as above.

33696fc0d141bbbcb12f75b69608ea83282e3117
    perf: Per PMU disable

    Changes perf_disable() into perf_pmu_disable().

24cd7f54a0d47e1d5b3de29e2456bfbd2d8447b7
    perf: Reduce perf_disable() usage

    Since the current perf_disable() usage is only an optimization,
    remove it for now. This eases the removal of the __weak
    hw_perf_enable() interface.

b0a873ebbf87bf38bf70b5e39a7cadc96099fa13
    perf: Register PMU implementations

    Simple registration interface for struct pmu, this provides the
    infrastructure for removing all the weak functions.

51b0fe39549a04858001922919ab355dee9bdfcf
    perf: Deconstify struct pmu

    sed -ie 's/const struct pmu\>/struct pmu/g' `git grep -l "const struct pmu\>"`

Reported-by: Wu Zhangjin <wuzhangjin@gmail.com>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
To: a.p.zijlstra@chello.nl
To: fweisbec@gmail.com
To: will.deacon@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: wuzhangjin@gmail.com
Cc: paulus@samba.org
Cc: mingo@elte.hu
Cc: acme@redhat.com
Cc: dengcheng.zhu@gmail.com
Cc: matt@console-pimps.org
Cc: sshtylyov@mvista.com
Cc: ddaney@caviumnetworks.com
Patchwork: http://patchwork.linux-mips.org/patch/2012/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS, Perf-events: Work with irq_work
Deng-Cheng Zhu [Fri, 21 Jan 2011 08:19:17 +0000 (16:19 +0800)]
MIPS, Perf-events: Work with irq_work

This is the MIPS part of the following commit by Peter Zijlstra:

e360adbe29241a0194e10e20595360dd7b98a2b3
    irq_work: Add generic hardirq context callbacks

    Provide a mechanism that allows running code in IRQ context. It is
    most useful for NMI code that needs to interact with the rest of the
    system -- like wakeup a task to drain buffers.

    Perf currently has such a mechanism, so extract that and provide it as
    a generic feature, independent of perf so that others may also
    benefit.

    The IRQ context callback is generated through self-IPIs where
    possible, or on architectures like powerpc the decrementer (the
    built-in timer facility) is set to generate an interrupt immediately.

    Architectures that don't have anything like this get to do with a
    callback from the timer tick. These architectures can call
    irq_work_run() at the tail of any IRQ handlers that might enqueue such
    work (like the perf IRQ handler) to avoid undue latencies in
    processing the work.

For MIPSXX, we need to call irq_work_run() at the tail of the perf IRQ
handler as described above.

Reported-by: Wu Zhangjin <wuzhangjin@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
To: fweisbec@gmail.com
To: will.deacon@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: paulus@samba.org
Cc: mingo@elte.hu
Cc: acme@redhat.com
Cc: matt@console-pimps.org
Cc: sshtylyov@mvista.com,
Patchwork: http://patchwork.linux-mips.org/patch/2011/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Fix always CONFIG_LOONGSON_UART_BASE=y
Yoichi Yuasa [Mon, 7 Feb 2011 02:31:36 +0000 (11:31 +0900)]
MIPS: Fix always CONFIG_LOONGSON_UART_BASE=y

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2055/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Loongson: Fix potentially wrong string handling
Stefan Weil [Sun, 30 Jan 2011 20:41:44 +0000 (21:41 +0100)]
MIPS: Loongson: Fix potentially wrong string handling

This error was reported by cppcheck:
arch/mips/loongson/common/machtype.c:56: error: Dangerous usage of 'str' (strncpy doesn't always 0-terminate it)

If strncpy copied MACHTYPE_LEN bytes, the destination string str
was not terminated.

The patch adds one more byte to str and makes sure that this byte is
always 0.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Arnaud Patard <apatard@mandriva.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2053/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Fix GCC-4.6 'set but not used' warning in arch/mips/mm/init.c
David Daney [Mon, 24 Jan 2011 22:51:37 +0000 (14:51 -0800)]
MIPS: Fix GCC-4.6 'set but not used' warning in arch/mips/mm/init.c

Under some combinations of CONFIG_*, lastpfn in page_is_ram is 'set
but not used'.  Mark it as __maybe_unused to quiet the warning/error.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2033/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Fix GCC-4.6 'set but not used' warning in ieee754int.h
David Daney [Mon, 24 Jan 2011 22:51:36 +0000 (14:51 -0800)]
MIPS: Fix GCC-4.6 'set but not used' warning in ieee754int.h

GCC-4.6 can find more unused code than previous versions could.

In the case of arch/mips/math-emu/ieee754int.h, the COMPXSP and
COMPXDP macros are used in several places, but a couple of them leave
xs unused.  The easiest thing to do is mark it as __maybe_unused to
quiet the warning.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2032/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Remove unused code from arch/mips/kernel/syscall.c
David Daney [Mon, 24 Jan 2011 22:51:35 +0000 (14:51 -0800)]
MIPS: Remove unused code from arch/mips/kernel/syscall.c

The variable arg3 in _sys_sysmips() is unused.  Remove it.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2034/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Fix GCC-4.6 'set but not used' warning in signal*.c
David Daney [Mon, 24 Jan 2011 22:51:34 +0000 (14:51 -0800)]
MIPS: Fix GCC-4.6 'set but not used' warning in signal*.c

GCC-4.6 can find more unused code than previous versions could.

In the case of protected_restore_fp_context{,32}, the variable tmp is
really used.  Its use is tricky in that we really care about the side
effects of the __put_user() calls.  So we must mark tmp with
__maybe_unused to quiet the warning.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2035/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: MSP: Fix MSP71xx bpci interrupt handler return value
Anoop P A [Thu, 18 Nov 2010 10:32:50 +0000 (16:02 +0530)]
MIPS: MSP: Fix MSP71xx bpci interrupt handler return value

Signed-off-by: Anoop P A <anoop.pa@gmail.com>
To: Ben Hutchings <ben@decadent.org.uk>
To: linux-mips@linux-mips.org
To: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1804/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Select R4K timer lib for all MSP platforms
Anoop P A [Thu, 18 Nov 2010 08:12:28 +0000 (13:42 +0530)]
MIPS: Select R4K timer lib for all MSP platforms

Signed-off-by: Anoop P A <anoop.pa@gmail.com>
To: linux-mips@linux-mips.org
To: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1803/
Tested-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Loongson: Remove ad-hoc cmdline default
Robert Millan [Sun, 7 Nov 2010 12:38:29 +0000 (13:38 +0100)]
MIPS: Loongson: Remove ad-hoc cmdline default

Loongson builds have an ad-hoc cmdline default of "console=ttyS0,115200
root=/dev/hda1". These settings come from a vendor; I remember builds
from Lemote branch requiring a "console=tty" override in order to get a
working console.

At least on Yeeloong, they're particularly useless: there's no external
serial port, and the IDE drive is now recognised as /dev/sda.

Signed-off-by: Robert Millan <rmh@gnu.org>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1759/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Clear the correct flag in sysmips(MIPS_FIXADE, ...).
Stefan Oberhumer [Mon, 17 Jan 2011 08:19:53 +0000 (09:19 +0100)]
MIPS: Clear the correct flag in sysmips(MIPS_FIXADE, ...).

The sysmips(MIPS_FIXADE, ...) case contains an obvious copy-and-paste
error in the handling of the TIF_LOGADE flag. Fix that

Patchwork: https://patchwork.linux-mips.org/patch/1997/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS: Add an unreachable return statement to satisfy buggy GCCs.
David Daney [Wed, 19 Jan 2011 23:24:42 +0000 (15:24 -0800)]
MIPS: Add an unreachable return statement to satisfy buggy GCCs.

It was reported that GCC-4.3.3 (with CodeSourcery extensions) fails
without this.

Reported-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2010/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
13 years agoMIPS, Tracing: Fix set_graph_function of function graph tracer
Wu Zhangjin [Fri, 21 Jan 2011 18:01:53 +0000 (02:01 +0800)]
MIPS, Tracing: Fix set_graph_function of function graph tracer

trace.func should be set to the recorded ip of the mcount calling site
in the __mcount_loc section to filter the function entries configured
through the tracing/set_graph_function interface, but before, this is
set to the self_ra(the return address of mcount), which has made
set_graph_function not work as expected.

This fixes it via calculating the right recorded ip in the __mcount_loc
section and assign it to trace.func.

Reported-by: Zhiping Zhong <xzhong86@163.com>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2017/
Signed-off-by: Ralf Baechle <ralf@duck.linux-mips.net>
13 years agoMIPS, Tracing: Clean up ftrace_make_nop()
Wu Zhangjin [Wed, 19 Jan 2011 19:28:31 +0000 (03:28 +0800)]
MIPS, Tracing: Clean up ftrace_make_nop()

This moves the comments out of ftrace_make_nop() and cleans it.  At the
same time, a macro MCOUNT_OFFSET_INSNS is defined for sharing with the
next patch.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2008/
Signed-off-by: Ralf Baechle <ralf@duck.linux-mips.net>
13 years agoMIPS, Tracing: Clean up prepare_ftrace_return()
Wu Zhangjin [Wed, 19 Jan 2011 19:28:30 +0000 (03:28 +0800)]
MIPS, Tracing: Clean up prepare_ftrace_return()

The old prepare_ftrace_return() for MIPS is confused and have introduced
some problem. This patch cleans up the names of the arguments, variables
and related functions.

For MIPS, the 2nd argument of prepare_ftrace_return() is not really the
'selfpc' described in ftrace-design.txt but instead it is the self
return address. This did break the compatibility of the generic
interface but really reduced one unneeded calculation for to get the
current function name, the parent return address and the self return
address are enough, no need to tranform the self return address to the
self address.

But set_graph_function of function graph tracer is an exception, it does
need the 2nd argument of prepare_ftrace_return() as 'selfpc', for it
will use 'selfpc' to match user's configuration of function graph
entries, but in reality, it doesn't need the 'selfpc' but the recorded
ip address of the mcount calling site in the __mcount_loc section. So,
the 2nd argument of prepare_ftrace_return() is not important, the real
requirement is the right recorded ip address should be calculated and
assign to trace.func, this will be fixed in the next patches.

Reported-by: Zhiping Zhong <xzhong86@163.com>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2007/
Signed-off-by: Ralf Baechle <ralf@duck.linux-mips.net>
13 years agoMIPS, Tracing: Substitute in_kernel_space() for in_module()
Wu Zhangjin [Wed, 19 Jan 2011 19:28:29 +0000 (03:28 +0800)]
MIPS, Tracing: Substitute in_kernel_space() for in_module()

The old in_module() may not work in some situations(e.g. when module &
kernel are in the same address space when CONFIG_MAPPED_KERNEL=y), The
in_kernel_space() is more generic and it is also easy to be implemented
via cloning the existing core_kernel_text(), so, replace the in_module()
with in_kernel_space().

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2005/
Signed-off-by: Ralf Baechle <ralf@duck.linux-mips.net>
13 years agoMIPS, Tracing: Speed up function graph tracer
Wu Zhangjin [Wed, 19 Jan 2011 19:28:27 +0000 (03:28 +0800)]
MIPS, Tracing: Speed up function graph tracer

This simply moves the "ip-=4" statement down to the end of the do { ...
} while (...); loop, which reduces one unneeded subtration and the
subsequent memory loading and comparison.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2006/
Signed-off-by: Ralf Baechle <ralf@duck.linux-mips.net>
13 years agoMIPS: Replace deprecated spinlock initialization
Thomas Gleixner [Sun, 23 Jan 2011 15:17:00 +0000 (15:17 +0000)]
MIPS: Replace deprecated spinlock initialization

SPIN_LOCK_UNLOCK is deprecated. Use the lockdep capable variant instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2025/
Signed-off-by: Ralf Baechle <ralf@duck.linux-mips.net>
13 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Mon, 14 Mar 2011 18:19:50 +0000 (11:19 -0700)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFS: NFSROOT should default to "proto=udp"
  nfs4: remove duplicated #include
  NFSv4: nfs4_state_mark_reclaim_nograce() should be static
  NFSv4: Fix the setlk error handler
  NFSv4.1: Fix the handling of the SEQUENCE status bits
  NFSv4/4.1: Fix nfs4_schedule_state_recovery abuses
  NFSv4.1 reclaim complete must wait for completion
  NFSv4: remove duplicate clientid in struct nfs_client
  NFSv4.1: Retry CREATE_SESSION on NFS4ERR_DELAY
  sunrpc: Propagate errors from xs_bind() through xs_create_sock()
  (try3-resend) Fix nfs_compat_user_ino64 so it doesn't cause problems if bit 31 or 63 are set in fileid
  nfs: fix compilation warning
  nfs: add kmalloc return value check in decode_and_add_ds
  SUNRPC: Remove resource leak in svc_rdma_send_error()
  nfs: close NFSv4 COMMIT vs. CLOSE race
  SUNRPC: Close a race in __rpc_wait_for_completion_task()

13 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Mon, 14 Mar 2011 18:17:43 +0000 (11:17 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon: fix problem with changing active VRAM size. (v2)

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Mon, 14 Mar 2011 17:15:43 +0000 (10:15 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  watchdog: hpwdt: eliminate section mismatch warning
  watchdog: w83697ug_wdt: Fix set bit 0 to activate GPIO2
  watchdog: sch311x_wdt: fix printk condition
  watchdog: sch311x_wdt: Fix LDN active check
  watchdog: cpwd: Fix buffer-overflow

13 years agoFix corrupted OSF partition table parsing
Timo Warns [Mon, 14 Mar 2011 13:59:33 +0000 (14:59 +0100)]
Fix corrupted OSF partition table parsing

The kernel automatically evaluates partition tables of storage devices.
The code for evaluating OSF partitions contains a bug that leaks data
from kernel heap memory to userspace for certain corrupted OSF
partitions.

In more detail:

  for (i = 0 ; i < le16_to_cpu(label->d_npartitions); i++, partition++) {

iterates from 0 to d_npartitions - 1, where d_npartitions is read from
the partition table without validation and partition is a pointer to an
array of at most 8 d_partitions.

Add the proper and obvious validation.

Signed-off-by: Timo Warns <warns@pre-sense.de>
Cc: stable@kernel.org
[ Changed the patch trivially to not repeat the whole le16_to_cpu()
  thing, and to use an explicit constant for the magic value '8' ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agothp+memcg-numa: fix BUG at include/linux/mm.h:370!
Hugh Dickins [Mon, 14 Mar 2011 08:08:47 +0000 (01:08 -0700)]
thp+memcg-numa: fix BUG at include/linux/mm.h:370!

THP's collapse_huge_page() has an understandable but ugly difference
in when its huge page is allocated: inside if NUMA but outside if not.
It's hardly surprising that the memcg failure path forgot that, freeing
the page in the non-NUMA case, then hitting a VM_BUG_ON in get_page()
(or even worse, using the freed page).

Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMN10300: atomic_read() should ensure it emits a load
David Howells [Mon, 14 Mar 2011 14:49:44 +0000 (14:49 +0000)]
MN10300: atomic_read() should ensure it emits a load

atomic_read() needs to ensure that it emits a load (which it can do by using
ACCESS_ONCE()).

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: David Howells <dhowells@redhat.com>
13 years agoMN10300: The SMP_ICACHE_INV_FLUSH_RANGE IPI command does not exist
David Howells [Mon, 14 Mar 2011 14:45:29 +0000 (14:45 +0000)]
MN10300: The SMP_ICACHE_INV_FLUSH_RANGE IPI command does not exist

The invalidate-only versions of flush_icache_*range() are trying sending the
SMP_ICACHE_INV_FLUSH_RANGE IPI command in SMP kernels when they should be
sending SMP_ICACHE_INV_RANGE as the former does not exist.

Signed-off-by: David Howells <dhowells@redhat.com>
13 years agoMN10300: Proper use of macros get_user() in the case of incremented pointers
Tkhai Kirill [Mon, 14 Mar 2011 13:27:46 +0000 (13:27 +0000)]
MN10300: Proper use of macros get_user() in the case of incremented pointers

Using __get_user_check(x, ptr++, size) leads to double increment of pointer.
This macro uses the macro get_user directly, which itself is used in this way
(get_user(x, ptr++)) in some functions of the kernel. The patch fixes the
error.

Reported-by: Tkhai Kirill <tkhai@yandex.ru>
Signed-off-by: David Howells <dhowells@redhat.com>
13 years agox86: ce4100: Set pci ops via callback instead of module init
Sebastian Andrzej Siewior [Mon, 14 Mar 2011 09:33:40 +0000 (10:33 +0100)]
x86: ce4100: Set pci ops via callback instead of module init

Setting the pci ops on subsys initcall unconditionally will break
multi platform kernels on anything except ce4100.

Use x86_init.pci.init ops to call this only on real ce4100 platforms.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: sodaville@linutronix.de
LKML-Reference: <20110314093340.GA21026@www.tglx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
13 years agowatchdog: hpwdt: eliminate section mismatch warning
Axel Lin [Wed, 2 Mar 2011 03:49:44 +0000 (11:49 +0800)]
watchdog: hpwdt: eliminate section mismatch warning

hpwdt_init_nmi_decoding() is called in hpwdt_init_one error handling,
thus remove the  __devexit annotation of hpwdt_exit_nmi_decoding().

This patch fixes below warning:

WARNING: drivers/watchdog/hpwdt.o(.devinit.text+0x36f): Section mismatch in reference from the function hpwdt_init_one() to the function .devexit.text:hpwdt_exit_nmi_decoding()
The function __devinit hpwdt_init_one() references
a function __devexit hpwdt_exit_nmi_decoding().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __devexit annotation of
hpwdt_exit_nmi_decoding() so it may be used outside an exit section.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Thomas Mingarelli <Thomas.Mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years agowatchdog: w83697ug_wdt: Fix set bit 0 to activate GPIO2
Wim Van Sebroeck [Mon, 21 Feb 2011 19:28:58 +0000 (19:28 +0000)]
watchdog: w83697ug_wdt: Fix set bit 0 to activate GPIO2

outb_p(c || 0x01, WDT_EFDR); -> || should be |

Reported-By: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years agowatchdog: sch311x_wdt: fix printk condition
Dan Carpenter [Wed, 23 Feb 2011 20:26:01 +0000 (23:26 +0300)]
watchdog: sch311x_wdt: fix printk condition

"==" has higher precedence than "&".  Since
if (sch311x_sio_inb(sio_config_port, 0x30) & (0x01 == 0)) is always
false the message is never printed.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years agowatchdog: sch311x_wdt: Fix LDN active check
Wim Van Sebroeck [Mon, 21 Feb 2011 19:09:40 +0000 (19:09 +0000)]
watchdog: sch311x_wdt: Fix LDN active check

if (sch311x_sio_inb(sio_config_port, 0x30) && 0x01 == 0) -> && should be &

Reported-By: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>