firefly-linux-kernel-4.4.55.git
13 years agovideo: tegra: clear video modes on hdmi unplug
Erik Gilling [Tue, 19 Oct 2010 21:51:09 +0000 (14:51 -0700)]
video: tegra: clear video modes on hdmi unplug

Change-Id: If9aabc5efa1b934c94e71e0210f38979f6f7e58e
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agovideo: tegra: allow clearing of video modes in fb driver
Erik Gilling [Tue, 19 Oct 2010 21:49:05 +0000 (14:49 -0700)]
video: tegra: allow clearing of video modes in fb driver

Change-Id: Ibec4fd2ef7136843b68c52b60862b2c5c3e795fc
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agovideo: tegra: don't enable display when mode is invalid
Erik Gilling [Tue, 19 Oct 2010 21:48:26 +0000 (14:48 -0700)]
video: tegra: don't enable display when mode is invalid

Change-Id: I84a494f7c125ceadbe39a681a8ed7cfa244a6a2b
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agovideo: tegra: fb: Add flag to flip fb during probe
Colin Cross [Wed, 20 Oct 2010 05:11:37 +0000 (22:11 -0700)]
video: tegra: fb: Add flag to flip fb during probe

Change-Id: Ibe65175392fe2fe491cb88b5df0771a17bc0c706
Signed-off-by: Colin Cross <ccross@android.com>
13 years agovideo: tegra: dc: Move init to module_init
Colin Cross [Thu, 14 Oct 2010 01:01:45 +0000 (18:01 -0700)]
video: tegra: dc: Move init to module_init

Move dc init to the device init level so that all clocks are
initialized before the late init level.  This depends on I2C
being initialized in the subsys init level.

Change-Id: Iafe759d943b6cc90d5c6718b69e872e14d6acd4e
Signed-off-by: Colin Cross <ccross@android.com>
13 years agoi2c: busses: i2c-tegra: Move init to subsys_initcall
Colin Cross [Thu, 14 Oct 2010 01:00:21 +0000 (18:00 -0700)]
i2c: busses: i2c-tegra: Move init to subsys_initcall

Some drivers (like hdmi) need to communicate over i2c during probe.
Move the i2c bus init to the subsys init level so that i2c is ready
for the start of the device init level.

Change-Id: I81234d42aa26b657ffc619099e47df09e12083bb
Signed-off-by: Colin Cross <ccross@android.com>
13 years ago[ARM] tegra: Add function to copy framebuffer contents
Colin Cross [Wed, 20 Oct 2010 04:09:29 +0000 (21:09 -0700)]
[ARM] tegra: Add function to copy framebuffer contents

Due to conflicting restrictions on the location of the framebuffer
between the bootloader and the protected aperture, the framebuffer
is likely to need to be moved during boot.  This patch provides
tegra_move_framebuffer, which can handle move the framebuffer from
lowmem, highmem, or unmapped memory into unmapped memory.

Change-Id: Ic37e5e337cd3129065fe56fd7777a86d06ad69ac

13 years agovideo: tegra: nvmap: Prevent reverting to sysmem for small allocations
Colin Cross [Wed, 20 Oct 2010 01:33:52 +0000 (18:33 -0700)]
video: tegra: nvmap: Prevent reverting to sysmem for small allocations

Change-Id: Icfe552ad4a968329a1a2959d5b438062587a83b6
Signed-off-by: Colin Cross <ccross@android.com>
13 years ago[ARM] tegra: suspend: Save protected aperture across LP0
Colin Cross [Tue, 19 Oct 2010 23:08:48 +0000 (16:08 -0700)]
[ARM] tegra: suspend: Save protected aperture across LP0

Change-Id: Iab66c566957cfbac8ddab615ec92e57c2164ab68
Signed-off-by: Colin Cross <ccross@android.com>
13 years ago[ARM] tegra: Add function to enable protected aperture
Colin Cross [Tue, 19 Oct 2010 23:12:33 +0000 (16:12 -0700)]
[ARM] tegra: Add function to enable protected aperture

Change-Id: I699cee3bc9a131259b330655126146f5d1f92043
Signed-off-by: Colin Cross <ccross@android.com>
13 years ago[ARM] tegra: Use memblock_remove to allocate carveout and framebuffer
Colin Cross [Tue, 19 Oct 2010 21:45:50 +0000 (14:45 -0700)]
[ARM] tegra: Use memblock_remove to allocate carveout and framebuffer

This uses the patch by rmk to allow memblock_remove to be used to
remove areas of memory from the 1:1 mapping, allowing them to be
remapped later using iomap or, for Tegra, nvmap.

Also uses memblock_reserve to reserve the lp0 boot vector, so it
doesn't need to be copied later in tegra_init_suspend.

tegra_reserve should be called from the machine reserve callback
after any board-specific memory areas are reserved.

Change-Id: I26be8544a03b6da74fe66dc53a77681d431c303c
Signed-off-by: Colin Cross <ccross@android.com>
13 years ago[ARM] mm: init: Use memblock to set up memory map
Colin Cross [Tue, 19 Oct 2010 19:42:34 +0000 (12:42 -0700)]
[ARM] mm: init: Use memblock to set up memory map

Based on patch by rmk on lkml at http://lkml.org/lkml/2010/10/11/179
Reverts changes to find_limits to fix crash when using memblock_remove
on the end of memory.

Original-author: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Colin Cross <ccross@android.com>
Change-Id: I6137a7939329381e4ed34bfcdc8b713dc50ebcc8

13 years agovideo: tegra: nvmap: Remove warning from nvmap_pin
Rebecca Schultz Zavin [Tue, 19 Oct 2010 22:57:40 +0000 (15:57 -0700)]
video: tegra: nvmap: Remove warning from nvmap_pin

The framebuffer driver needs to be able to arbitrarily pin whatever
gets handed to it.  Regardless of the interface used, functions need
to unpin as soon as they finish using the gart anyway.

Change-Id: Ida8aea2fb6eaca8bcbf3ae72f8dfa849dc198542
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
13 years ago[ARM] tegra_i2s_audio: support mono capture
Chris Fries [Wed, 20 Oct 2010 18:10:29 +0000 (13:10 -0500)]
[ARM] tegra_i2s_audio: support mono capture

Support mono data formats such as DSP PCM Mode with 16 bit mono capture.

This patch also disables the in-driver downsampler.

Signed-off-by: Iliyan Malchev <malchev@google.com>
13 years ago[ARM] tegra_i2s_audio: add support for selecting tx/rx channels separately
Iliyan Malchev [Wed, 20 Oct 2010 00:50:32 +0000 (17:50 -0700)]
[ARM] tegra_i2s_audio: add support for selecting tx/rx channels separately

Signed-off-by: Iliyan Malchev <malchev@google.com>
13 years agommc: sdhci: Enable MMC_CAP_ERASE
Dmitry Shmidt [Tue, 19 Oct 2010 23:06:36 +0000 (16:06 -0700)]
mmc: sdhci: Enable MMC_CAP_ERASE

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
13 years agoRevert "[ARM] mm: add page allocator for modifying cache attributes"
Gary King [Wed, 13 Oct 2010 01:10:31 +0000 (18:10 -0700)]
Revert "[ARM] mm: add page allocator for modifying cache attributes"

This reverts commit 54d414570432ce07fa1a14b657f53bed752e3d7e.

Change-Id: I8e5cf6ef3555129da9741ef52a1e6a3a772ad588
Signed-off-by: Gary King <gking@nvidia.com>
13 years agovideo: tegra: nvmap: eliminate arm_attrib_allocator dependency
Gary King [Wed, 13 Oct 2010 00:40:18 +0000 (17:40 -0700)]
video: tegra: nvmap: eliminate arm_attrib_allocator dependency

remove the dependency that nvmap has on the arm_attrib_allocator
and the lowmem in PTEs change by adding a private page allocator
utility function and calling vm_map_ram unconditionally for all
sysmem handles.

also, add Kconfig variables to allow platforms to disallow the
SYSMEM heap, and to optionally restrict the SYSMEM and IOVMM
heaps to just HIGHMEM.

Change-Id: I3dab1c7323f54a8ab3994dc672b27fd79a9057d7
Signed-off-by: Gary King <gking@nvidia.com>
13 years ago[ARM] tegra: Set bit 22 in the PL310 AuxCtrl
Gary King [Wed, 13 Oct 2010 01:55:07 +0000 (18:55 -0700)]
[ARM] tegra: Set bit 22 in the PL310 AuxCtrl

Duplicate Catalin Marinas' <catalin.marinas@arm.com> ARM change
6395/1 for VExpress to tegra

Clearing bit 22 in the PL310 Auxiliary Control register (shared
attribute override enable) has the side effect of transforming Normal
Shared Non-cacheable reads into Cacheable no-allocate reads.

Coherent DMA buffers in Linux always have a Cacheable alias via the
kernel linear mapping and the processor can speculatively load cache
lines into the PL310 controller. With bit 22 cleared, Non-cacheable
reads would unexpectedly hit such cache lines leading to buffer
corruption.

Change-Id: I37232041c035f5153a7ad73257c6333634a5f4b8
Signed-off-by: Gary King <gking@nvidia.com>
13 years agospi: tegra: Use shared DMA channel
Colin Cross [Mon, 18 Oct 2010 22:07:30 +0000 (15:07 -0700)]
spi: tegra: Use shared DMA channel

To avoid running out of DMA channels, use the shared DMA channel
for all four Tegra spi controllers.

Change-Id: Iff644253cf7fae36aa2e42321a1ded35a728da4f
Signed-off-by: Colin Cross <ccross@android.com>
13 years ago[arm/tegra]serial:rewrite interrupt handler
Jay Cheng [Mon, 18 Oct 2010 05:41:04 +0000 (01:41 -0400)]
[arm/tegra]serial:rewrite interrupt handler

rewrite interrupt handler to prevent race condition between dma operation
 and serial isr.

Change-Id: I4464ba882f39ff1dc2423241f6582df687057420

Signed-off-by: Jay Cheng <jacheng@nvidia.com>
13 years ago[ARM/tegra] dma: add transfer count query. Checking interrupt pending status.
Jay Cheng [Sat, 16 Oct 2010 03:55:02 +0000 (23:55 -0400)]
[ARM/tegra] dma: add transfer count query. Checking interrupt pending status.
 Stopping Dma after last req transfer.

add an API to return the completed transfer count of a pending, active
or finished DMA request

originally fixed by Gary King <gking@nvidia.com>

It is observed that the dma interrupt has the lower priority then
its client interupt priority. When client's isr calls dma get transfer,
the dma status has not been upated as dma isr have not been served yet.
So before reading the status, explicitly checking the interrupt status and
handling accordingly.

The another issue which is observed is that if dma has transferred the data
of amount = requested -4 and if it moves to invalid requestor before stopping
then status got reset and tarnsfered bytes becomes 0. This seems the apb dma
hw behavior. Following is the suggestion to overcome this issue:
- Disable global enable bit.
- Read status.
- Stop dma.
- Enable global status bit.

Added this workaround and it worked fine.

originally fixed by Laxman Dewangan <ldewangan@nvidia.com>

In continous mode, dma should stop after last transfer completed and
if there is no more req pending.
If there is pending req then it should check whether it has updated
in hw for next transfer or not and if it has not started then stop dma
and start new req immediatley.

originally fixed by Laxman Dewangan <ldewangan@nvidia.com>

Change-Id: I49c97c96eacdf4060de6b21cec0e71d940d33f00

13 years agovideo: tegra: add hdmi switch_dev for hotplug notifications
Erik Gilling [Mon, 18 Oct 2010 22:38:22 +0000 (15:38 -0700)]
video: tegra: add hdmi switch_dev for hotplug notifications

Change-Id: I0454179633835d35367bc5c28513319e3aa6a069
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agovideo: tegra: disable display on hotunplug
Erik Gilling [Mon, 18 Oct 2010 22:22:05 +0000 (15:22 -0700)]
video: tegra: disable display on hotunplug

Also tighents up the hotplug detect timing

Change-Id: I2d48c38250b5aaef2d30895fe44806e7d133a823
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agousb: host: ehci-tegra: Don't power down the phy on shutdown
Benoit Goby [Fri, 15 Oct 2010 21:32:21 +0000 (14:32 -0700)]
usb: host: ehci-tegra: Don't power down the phy on shutdown

There is no need to poweroff the phy and disable the clocks on shutdown.
This interferes with autopm that may try to disable the clocks after
shutdown.

Change-Id: I3aee19abe6dd11685b3be348e25fc3e195a2a416
Signed-off-by: Benoit Goby <benoit@android.com>
13 years agoi2c: tegra: fix repeated start handling
Erik Gilling [Mon, 18 Oct 2010 22:20:42 +0000 (15:20 -0700)]
i2c: tegra: fix repeated start handling

A repeated start should be used for all but the last msg in an xfer.  The
NOSTART flag is for skipping the START frame (addr/rw)

Change-Id: If4bc88478521a8c4e1ec761bd42a84d3e398fa26
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agovideo: tegra: don't assert/deassert reset in dc
Erik Gilling [Fri, 15 Oct 2010 00:18:31 +0000 (17:18 -0700)]
video: tegra: don't assert/deassert reset in dc

There seems to be some interdependency between the two display controllers'
resets and HDMI.  If dc0 is put into reset while HDMI is connected to dc1,
HDMI will blank.

Change-Id: I978814628609ebe3d78e7809fccef6a3d19c0f7f
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agovideo: tegra: fb var info on monspecs change
Erik Gilling [Thu, 14 Oct 2010 21:56:05 +0000 (14:56 -0700)]
video: tegra: fb var info on monspecs change

activates the default mode

Change-Id: I34d27d2947377771e8f1c89f3933204d7e65364f
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agovideo: tegra: ensure first video mode is marked with FB_MODE_IS_FIRST
Erik Gilling [Thu, 14 Oct 2010 19:46:57 +0000 (12:46 -0700)]
video: tegra: ensure first video mode is marked with FB_MODE_IS_FIRST

Change-Id: If3c417c670962e4ca6ff92c3bd1a388c189f11ab
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agovideo: modedb: make fb_add_videomode keep modelist in order added
Erik Gilling [Thu, 14 Oct 2010 19:44:10 +0000 (12:44 -0700)]
video: modedb: make fb_add_videomode keep modelist in order added

This makes the default case in fb_find_best_display ("last resort, use
the very first mode") actually use the first mode added.

Change-Id: Ia43ac4a4251522cd30c0da514da23e47b2906e2c
Signed-off-by: Erik Gilling <konkers@android.com>
13 years ago[ARM] tegra_i2s_audio: allow different DMA bus widths
Chris Fries [Thu, 14 Oct 2010 21:31:52 +0000 (16:31 -0500)]
[ARM] tegra_i2s_audio: allow different DMA bus widths

Added separate APB DMA bus-width controls depending on the audio bus format.

Signed-off-by: Iliyan Malchev <malchev@google.com>
13 years ago[ARM] tegra_i2s_audio: add suspend/resume handlers
Chris Fries [Thu, 14 Oct 2010 21:31:52 +0000 (16:31 -0500)]
[ARM] tegra_i2s_audio: add suspend/resume handlers

The resume handler restores i2s state, which gets lost on LP0

Signed-off-by: Iliyan Malchev <malchev@google.com>
13 years ago[ARM] tegra_i2s_audio: add a few overlooked checks
Iliyan Malchev [Fri, 15 Oct 2010 21:13:48 +0000 (14:13 -0700)]
[ARM] tegra_i2s_audio: add a few overlooked checks

Signed-off-by: Iliyan Malchev <malchev@google.com>
13 years agoMerge commit 'v2.6.36-rc8' into linux-tegra-2.6.36
Colin Cross [Fri, 15 Oct 2010 19:03:22 +0000 (12:03 -0700)]
Merge commit 'v2.6.36-rc8' into linux-tegra-2.6.36

13 years agoLinux 2.6.36-rc8
Linus Torvalds [Thu, 14 Oct 2010 23:26:43 +0000 (16:26 -0700)]
Linux 2.6.36-rc8

13 years ago[arm]: tegra: dma: DMA error debugging.
Mike Corrigan [Thu, 14 Oct 2010 18:56:13 +0000 (13:56 -0500)]
[arm]: tegra: dma: DMA error debugging.

Print an error message when a DMA channel cannot be allocated.

Change-Id: I93a96851ac12c5ea66b2fb053033aa4260c2178a
Signed-off-by: Mike Corrigan <michael.corrigan@motorola.com>
13 years ago[arm]: tegra: serial: DMA allocation fix.
Mike Corrigan [Thu, 14 Oct 2010 18:55:13 +0000 (13:55 -0500)]
[arm]: tegra: serial: DMA allocation fix.

Handle the case where DMA channels cannot be allocated and PIO must be used.
Fixed a typo for forcing RX to use PIO.

Change-Id: I167184f9ce936d4a08dd9919ae4f8b0d9ad7e0c4
Signed-off-by: Mike Corrigan <michael.corrigan@motorola.com>
13 years agoUn-inline the core-dump helper functions
Linus Torvalds [Thu, 14 Oct 2010 21:32:06 +0000 (14:32 -0700)]
Un-inline the core-dump helper functions

Tony Luck reports that the addition of the access_ok() check in commit
0eead9ab41da ("Don't dump task struct in a.out core-dumps") broke the
ia64 compile due to missing the necessary header file includes.

Rather than add yet another include (<asm/unistd.h>) to make everything
happy, just uninline the silly core dump helper functions and move the
bodies to fs/exec.c where they make a lot more sense.

dump_seek() in particular was too big to be an inline function anyway,
and none of them are in any way performance-critical.  And we really
don't need to mess up our include file headers more than they already
are.

Reported-and-tested-by: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agovideo: tegra: update overlay stride in fb_set_par
Erik Gilling [Fri, 17 Sep 2010 21:44:28 +0000 (14:44 -0700)]
video: tegra: update overlay stride in fb_set_par

Fixes recovery graphics

Change-Id: I68824dfcd29b40eaa27a8b5ee437e5763288a49e
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agospi: tegra: cleanups from upstream review
Erik Gilling [Wed, 13 Oct 2010 20:06:29 +0000 (13:06 -0700)]
spi: tegra: cleanups from upstream review

Change-Id: Icecf7e64efcb39de072a15234ba1faa4bad40d25
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 14 Oct 2010 18:19:44 +0000 (11:19 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  ehea: Fix a checksum issue on the receive path
  net: allow FEC driver to use fixed PHY support
  tg3: restore rx_dropped accounting
  b44: fix carrier detection on bind
  net: clear heap allocations for privileged ethtool actions
  NET: wimax, fix use after free
  ATM: iphase, remove sleep-inside-atomic
  ATM: mpc, fix use after free
  ATM: solos-pci, remove use after free
  net/fec: carrier off initially to avoid root mount failure
  r8169: use device model DMA API
  r8169: allocate with GFP_KERNEL flag when able to sleep

13 years agoDon't dump task struct in a.out core-dumps
Linus Torvalds [Thu, 14 Oct 2010 17:57:40 +0000 (10:57 -0700)]
Don't dump task struct in a.out core-dumps

akiphie points out that a.out core-dumps have that odd task struct
dumping that was never used and was never really a good idea (it goes
back into the mists of history, probably the original core-dumping
code).  Just remove it.

Also do the access_ok() check on dump_write().  It probably doesn't
matter (since normal filesystems all seem to do it anyway), but he
points out that it's normally done by the VFS layer, so ...

[ I suspect that we should possibly do "vfs_write()" instead of
  calling ->write directly.  That also does the whole fsnotify and write
  statistics thing, which may or may not be a good idea. ]

And just to be anal, do this all for the x86-64 32-bit a.out emulation
code too, even though it's not enabled (and won't currently even
compile)

Reported-by: akiphie <akiphie@lavabit.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years ago[ARM] tegra_i2s_audio: add support for DSP (PCM) mode.
Chris Fries [Wed, 13 Oct 2010 03:00:25 +0000 (22:00 -0500)]
[ARM] tegra_i2s_audio: add support for DSP (PCM) mode.

Change-Id: I132b8b7709c154ca1fb52f437966bd90451e89f7
Signed-off-by: Iliyan Malchev <malchev@google.com>
13 years ago[ARM] tegra_i2s_audio: fixes
Iliyan Malchev [Tue, 12 Oct 2010 19:50:48 +0000 (12:50 -0700)]
[ARM] tegra_i2s_audio: fixes

-- Ignore kfifo thresholds on recording and playback and adjust the delays.
-- Take out the code from TEGRA_AUDIO_IN_STOP into a separate function
   stop_recording_nosync()
-- Rename stop_recording() to wait_for_recording_to_stop().
-- add ioctl(TEGRA_AUDIO_OUT_FLUSH), which blocks the caller until the output
   fifo is drained.  While the caller is blocked, pending write() calls will
   return immediately with whatever data they had managed to queue up.
-- removed ioctl(TEGRA_AUDIO_OUT_PRELOAD_FIFO)
-- since TEGRA_AUDIO_OUT_FLUSH and TEGRA_AUDIO_IN_STOP act similarly, moved
   audio_driver_state::recording_cancelled to audio_stream::stop and changed
   the code accordingly.  Renamed functions wait_for_recording_to_stop() and
   stop_recording_nosync() to wait_till_stopped() and request_stop_nosync()
   since they handle both playback and recording.
-- print errors on close() if wakelocks are still held
-- Call request_stop_nosync() on close() of a recording file handle
-- Do not use struct audio_stream::active for playback streams.  Instead,
   where applicable, use kfifo_len().  As a consequence, playback kfifo
   underruns are no longer reported.  These were bogus anyway, as we really
   need the DMA engine to tell us if there are underruns.
-- Because of above item, had to rework tx_fifo_atn_store(),
   rx_fifo_atn_store(), and __attr_fifo_atn_write().
-- Set struct audio_stream::active for a recording stream to true when a
   recording starts, and set it to false when recording get stopped.  Do not
   set/clear it within the body of read(), because just being within read()
   does not mean that recording is in progress.
-- In tegra_audio_read(), check for stop == true before calling
   start_recording_if_necessary(); this makes sure that if a user calls read()
   after calling ioctl(TEGRA_AUDIO_IN_STOP), recording will not resume unless
   ioctl(TEGRA_AUDIO_IN_START) gets called, or the file is closed and
   re-opened.
-- Fixed TEGRA_AUDIO_IN_START
-- In PIO mode, enabled FIFOs before enabling interrupts as specified in the
   TRM.
-- Added missing break in tegra_audio_ioctl().
-- Silenced some debug spew

Signed-off-by: Iliyan Malchev <malchev@google.com>
13 years agousb: gadget: fsl_udc: Add support for USB test mode feature
Jay Cheng [Thu, 10 Jun 2010 20:27:56 +0000 (16:27 -0400)]
usb: gadget: fsl_udc: Add support for USB test mode feature

Adding support for USB-IF High Speed electrical test mode for device mode.
Support added for electrical test modes:
1. TEST_J
2. TEST_K
3. TEST_SE0_NAK
4. TEST_PACKET
5. TEST_FORCE_ENABLE

originally fixed by Venkat Moganty <vmoganty@nvidia.com>

Change-Id: If5a4dcf9eb81dc368f24c660460d35495b6a4253
Signed-off-by: Jay Cheng <jacheng@nvidia.com>
13 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
Linus Torvalds [Wed, 13 Oct 2010 23:51:59 +0000 (16:51 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/djbw/async_tx

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
  ioat2: fix performance regression

13 years agoMerge branch 'for-2.6.36' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Wed, 13 Oct 2010 23:51:29 +0000 (16:51 -0700)]
Merge branch 'for-2.6.36' of git://linux-nfs.org/~bfields/linux

* 'for-2.6.36' of git://linux-nfs.org/~bfields/linux:
  nfsd: fix BUG at fs/nfsd/nfsfh.h:199 on unlink

13 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 13 Oct 2010 23:50:23 +0000 (16:50 -0700)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ring-buffer: Fix typo of time extends per page
  perf, MIPS: Support cross compiling of tools/perf for MIPS
  perf: Fix incorrect copy_from_user() usage

13 years agousb: gadget: fsl_udc: Fix dTDs allocation gfp flags
Benoit Goby [Tue, 21 Sep 2010 04:19:37 +0000 (21:19 -0700)]
usb: gadget: fsl_udc: Fix dTDs allocation gfp flags

fsl_build_dtd may be called from atomic context. Don't hardcode the gfp
flag to GFP_KERNEL. Pass down to dma_pool_alloc the flag used by the
function driver to enqueue the request.

Change-Id: Iba1ccf73bbcd648b8c13228157431d2ce52979ef
Signed-off-by: Benoit Goby <benoit@android.com>
13 years agousb: gadget: fsl_udc: Prevent udc timeout on suspend
Colin Cross [Fri, 23 Jul 2010 19:54:37 +0000 (12:54 -0700)]
usb: gadget: fsl_udc: Prevent udc timeout on suspend

Change-Id: Ic4780063d432860df835c54c17b2b9249132c8c5
Signed-off-by: Colin Cross <ccross@android.com>
13 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Wed, 13 Oct 2010 23:35:33 +0000 (16:35 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: relax ioremap prohibition (309caa9) for -final and -stable
  ARM: 6440/1: ep93xx: DMA: fix channel_disable
  cpuimx27: fix i2c bus selection
  cpuimx27: fix compile when ULPI is selected
  ARM: 6435/1: Fix HWCAP_TLS flag for ARM11MPCore/Cortex-A9
  ARM: 6436/1: AT91: Fix power-saving in idle-mode on 926T processors
  ARM: fix section mismatch warnings in Versatile Express
  ARM: 6412/1: kprobes-decode: add support for MOVW instruction
  ARM: 6419/1: mmu: Fix MT_MEMORY and MT_MEMORY_NONCACHED pte flags
  ARM: 6416/1: errata: faulty hazard checking in the Store Buffer may lead to data corruption

13 years agoMerge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 13 Oct 2010 23:35:05 +0000 (16:35 -0700)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
  omap: iommu-load cam register before flushing the entry

13 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Wed, 13 Oct 2010 23:34:46 +0000 (16:34 -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/kms: Silent spurious error message
  drm/radeon/kms: fix bad cast/shift in evergreen.c
  drm/radeon/kms: make TV/DFP table info less verbose
  drm/radeon/kms: leave certain CP int bits enabled
  drm/radeon/kms: avoid corner case issue with unmappable vram V2

13 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 13 Oct 2010 23:34:23 +0000 (16:34 -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, numa: For each node, register the memory blocks actually used
  x86, AMD, MCE thresholding: Fix the MCi_MISCj iteration order
  x86, mce, therm_throt.c: Fix missing curly braces in error handling logic

13 years agoioat2: fix performance regression
Dan Williams [Wed, 13 Oct 2010 22:43:10 +0000 (15:43 -0700)]
ioat2: fix performance regression

Commit 0793448 "DMAENGINE: generic channel status v2" changed the interface for
how dma channel progress is retrieved.  It inadvertently exported an internal
helper function ioat_tx_status() instead of ioat_dma_tx_status().  The latter
polls the hardware to get the latest completion state, while the helper just
evaluates the current state without touching hardware.  The effect is that we
end up waiting for completion timeouts or descriptor allocation errors before
the completion state is updated.

iperf (before fix):
[SUM]  0.0-41.3 sec   364 MBytes  73.9 Mbits/sec

iperf (after fix):
[SUM]  0.0- 4.5 sec   499 MBytes   940 Mbits/sec

This is a regression starting with 2.6.35.

Cc: <stable@kernel.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Reported-by: Richard Scobie <richard@sauce.co.nz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoehea: Fix a checksum issue on the receive path
Breno Leitao [Thu, 7 Oct 2010 13:17:33 +0000 (13:17 +0000)]
ehea: Fix a checksum issue on the receive path

Currently we set all skbs with CHECKSUM_UNNECESSARY, even
those whose protocol we don't know. This patch just
add the CHECKSUM_COMPLETE tag for non TCP/UDP packets.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonfsd: fix BUG at fs/nfsd/nfsfh.h:199 on unlink
J. Bruce Fields [Wed, 13 Oct 2010 18:46:17 +0000 (14:46 -0400)]
nfsd: fix BUG at fs/nfsd/nfsfh.h:199 on unlink

As of commit 43a9aa64a2f4330a9cb59aaf5c5636566bce067c "NFSD:
Fill in WCC data for REMOVE, RMDIR, MKNOD, and MKDIR", we sometimes call
fh_unlock on a filehandle that isn't fully initialized.

We should fix up the callers, but as a quick fix it is also sufficient
just to remove this assertion.

Reported-by: Marius Tolzmann <tolzmann@molgen.mpg.de>
Cc: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonet: allow FEC driver to use fixed PHY support
Greg Ungerer [Mon, 11 Oct 2010 21:03:05 +0000 (21:03 +0000)]
net: allow FEC driver to use fixed PHY support

At least one board using the FEC driver does not have a conventional
PHY attached to it, it is directly connected to a somewhat simple
ethernet switch (the board is the SnapGear/LITE, and the attached
4-port ethernet switch is a RealTek RTL8305). This switch does not
present the usual register interface of a PHY, it presents nothing.
So a PHY scan will find nothing - it finds ID's of 0 for each PHY
on the attached MII bus.

After the FEC driver was changed to use phylib for supporting PHYs
it no longer works on this particular board/switch setup.

Add code support to use a fixed phy if no PHY is found on the MII bus.
This is based on the way the cpmac.c driver solved this same problem.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago[ARM] tegra: ventana: add graphics support
Gary King [Sat, 2 Oct 2010 00:00:39 +0000 (17:00 -0700)]
[ARM] tegra: ventana: add graphics support

register the tegradc0, tegradc1, grhost, pwm-backlight and carveout
devices

Change-Id: Ia61c0632470e571cc57279dc3b197ccd1fca80f0
Signed-off-by: Gary King <gking@nvidia.com>
13 years ago[ARM] tegra: ventana: add ldo3 consumer for avdd_lvds
Gary King [Fri, 10 Sep 2010 03:01:08 +0000 (20:01 -0700)]
[ARM] tegra: ventana: add ldo3 consumer for avdd_lvds

Change-Id: If5e07b2eb62805a00426799184989fa290318f4a
Signed-off-by: Gary King <gking@nvidia.com>
13 years ago[ARM] tegra: ventana: remove BUG() in set_charge.
Gary King [Fri, 1 Oct 2010 00:03:16 +0000 (17:03 -0700)]
[ARM] tegra: ventana: remove BUG() in set_charge.

Signed-off-by: Gary King <gking@nvidia.com>
13 years agovideo: tegra: nvmap: Only allow allocations out of highmem
Rebecca Schultz Zavin [Wed, 13 Oct 2010 00:03:02 +0000 (17:03 -0700)]
video: tegra: nvmap: Only allow allocations out of highmem

Low mem pages are allocated in larger super pages and their caching
attributes can't be controlled on a per page basis.  This patch
forces nvmap to map out of highmem pages which are guaranteed to have
page mappings.

Change-Id: Id3921342ecceb0345d43365d4dd90b82ca8cfd11
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
13 years agoRevert "[ARM] mmu: add option to map lowmem with page mappings"
Rebecca Schultz Zavin [Tue, 12 Oct 2010 23:58:27 +0000 (16:58 -0700)]
Revert "[ARM] mmu: add option to map lowmem with page mappings"

This reverts commit ac21b321048091bdbf45bbda87161cc9f312c393.

13 years ago[ARM] attrib_alloc: fix outer cache flush end address
Gary King [Tue, 12 Oct 2010 22:37:01 +0000 (15:37 -0700)]
[ARM] attrib_alloc: fix outer cache flush end address

when allocating uncached pages, the outer cache should be flushed;
the end address should be specified in bytes, not in pages.

Change-Id: I3fe036f4f7e10e009f96567e3afeeef6ea603240
Signed-off-by: Gary King <gking@nvidia.com>
13 years agoRevert "video: tegra: add utility function to compute framebuffer stride"
Erik Gilling [Mon, 11 Oct 2010 22:36:11 +0000 (15:36 -0700)]
Revert "video: tegra: add utility function to compute framebuffer stride"

This reverts commit 10c751b8f5bb78f674d4939b47be933934bb23dd.

Change-Id: I236ddcd531d3ca17c8727cac84e6d2aa6e27dbe1

13 years agovideo: tegra: clean up fb flipping code
Erik Gilling [Mon, 11 Oct 2010 22:35:41 +0000 (15:35 -0700)]
video: tegra: clean up fb flipping code

Signed-off-by: Erik Gilling <konkers@android.com>
Change-Id: I1c1f5aea92c1b062c8ccf2f2f6116c399d847262

13 years ago[ARM] tegra: add 10us delay after unclamping in powergate_on sequence
Erik Gilling [Fri, 8 Oct 2010 21:12:15 +0000 (14:12 -0700)]
[ARM] tegra: add 10us delay after unclamping in powergate_on sequence

Signed-off-by: Erik Gilling <konkers@android.com>
Change-Id: I94a979e6a1ec6ecf80b4d4f1721a8aacac7b8a11

13 years agovideo: tegra: dump current pushbuffer from channel debugger
Michael I. Gold [Fri, 24 Sep 2010 18:41:51 +0000 (11:41 -0700)]
video: tegra: dump current pushbuffer from channel debugger

Signed-off-by: Erik Gilling <konkers@android.com>
Change-Id: Ia14a2bad23ae1c6401755d413ffdc32c9f35b0fd

13 years agovideo: tegra: fix host1x command decoding debug prints
Erik Gilling [Thu, 7 Oct 2010 22:47:26 +0000 (15:47 -0700)]
video: tegra: fix host1x command decoding debug prints

Signed-off-by: Erik Gilling <konkers@android.com>
Change-Id: Ia0073a4e679174fc7e9ca6ff0b67973980c6af97

13 years agovideo: tegra: lock around DC suspend/resume
Erik Gilling [Thu, 7 Oct 2010 22:45:49 +0000 (15:45 -0700)]
video: tegra: lock around DC suspend/resume

Change-Id: I9c134a2417106538b15cc1cfd615cfb65573e878
Signed-off-by: Erik Gilling <konkers@android.com>
13 years agoARM: relax ioremap prohibition (309caa9) for -final and -stable
Russell King [Tue, 12 Oct 2010 23:15:25 +0000 (00:15 +0100)]
ARM: relax ioremap prohibition (309caa9) for -final and -stable

... but produce a big warning about the problem as encouragement
for people to fix their drivers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoMerge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6
Russell King [Tue, 12 Oct 2010 21:43:26 +0000 (22:43 +0100)]
Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6

13 years agoARM: 6440/1: ep93xx: DMA: fix channel_disable
Mika Westerberg [Tue, 12 Oct 2010 09:37:59 +0000 (10:37 +0100)]
ARM: 6440/1: ep93xx: DMA: fix channel_disable

When channel_disable() is called, it disables per channel interrupts and
waits until channels state becomes STATE_STALL, and then disables the
channel. Now, if the DMA transfer is disabled while the channel is in
STATE_NEXT we will not wait anything and disable the channel immediately.
This seems to cause weird data corruption for example in audio transfers.

Fix is to wait while we are in STATE_NEXT or STATE_ON and only then
disable the channel.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoMerge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Tue, 12 Oct 2010 16:16:01 +0000 (09:16 -0700)]
Merge branch 'kvm-updates/2.6.36' of git://git./virt/kvm/kvm

* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Move TSC reset out of vmcb_init
  KVM: x86: Fix SVM VMCB reset

13 years agoring-buffer: Fix typo of time extends per page
Steven Rostedt [Tue, 12 Oct 2010 16:06:43 +0000 (12:06 -0400)]
ring-buffer: Fix typo of time extends per page

Time stamps for the ring buffer are created by the difference between
two events. Each page of the ring buffer holds a full 64 bit timestamp.
Each event has a 27 bit delta stamp from the last event. The unit of time
is nanoseconds, so 27 bits can hold ~134 milliseconds. If two events
happen more than 134 milliseconds apart, a time extend is inserted
to add more bits for the delta. The time extend has 59 bits, which
is good for ~18 years.

Currently the time extend is committed separately from the event.
If an event is discarded before it is committed, due to filtering,
the time extend still exists. If all events are being filtered, then
after ~134 milliseconds a new time extend will be added to the buffer.

This can only happen till the end of the page. Since each page holds
a full timestamp, there is no reason to add a time extend to the
beginning of a page. Time extends can only fill a page that has actual
data at the beginning, so there is no fear that time extends will fill
more than a page without any data.

When reading an event, a loop is made to skip over time extends
since they are only used to maintain the time stamp and are never
given to the caller. As a paranoid check to prevent the loop running
forever, with the knowledge that time extends may only fill a page,
a check is made that tests the iteration of the loop, and if the
iteration is more than the number of time extends that can fit in a page
a warning is printed and the ring buffer is disabled (all of ftrace
is also disabled with it).

There is another event type that is called a TIMESTAMP which can
hold 64 bits of data in the theoretical case that two events happen
18 years apart. This code has not been implemented, but the name
of this event exists, as well as the structure for it. The
size of a TIMESTAMP is 16 bytes, where as a time extend is only
8 bytes. The macro used to calculate how many time extends can fit on
a page used the TIMESTAMP size instead of the time extend size
cutting the amount in half.

The following test case can easily trigger the warning since we only
need to have half the page filled with time extends to trigger the
warning:

 # cd /sys/kernel/debug/tracing/
 # echo function > current_tracer
 # echo 'common_pid < 0' > events/ftrace/function/filter
 # echo > trace
 # echo 1 > trace_marker
 # sleep 120
 # cat trace

Enabling the function tracer and then setting the filter to only trace
functions where the process id is negative (no events), then clearing
the trace buffer to ensure that we have nothing in the buffer,
then write to trace_marker to add an event to the beginning of a page,
sleep for 2 minutes (only 35 seconds is probably needed, but this
guarantees the bug), and then finally reading the trace which will
trigger the bug.

This patch fixes the typo and prevents the false positive of that warning.

Reported-by: Hans J. Koch <hjk@linutronix.de>
Tested-by: Hans J. Koch <hjk@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Stable Kernel <stable@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
13 years agoperf, MIPS: Support cross compiling of tools/perf for MIPS
Deng-Cheng Zhu [Tue, 12 Oct 2010 11:33:33 +0000 (19:33 +0800)]
perf, MIPS: Support cross compiling of tools/perf for MIPS

Changes:
 v4: Fix the cosmetic issue of redundant dot-ops
 v3: Change rmb() to use SYNC
 v2: Include mips unistd.h and define rmb()/cpu_relax() in tools/perf/perf.h

Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agodrm/radeon/kms: Silent spurious error message
Jean Delvare [Fri, 8 Oct 2010 12:34:49 +0000 (14:34 +0200)]
drm/radeon/kms: Silent spurious error message

I see the following error message in my kernel log from time to time:
radeon 0000:07:00.0: ffff88007c334000 reserve failed for wait
radeon 0000:07:00.0: ffff88007c334000 reserve failed for wait

After investigation, it turns out that there's nothing to be afraid of
and everything works as intended. So remove the spurious log message.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
13 years agodrm/radeon/kms: fix bad cast/shift in evergreen.c
Alex Deucher [Mon, 11 Oct 2010 16:41:32 +0000 (12:41 -0400)]
drm/radeon/kms: fix bad cast/shift in evergreen.c

Missing parens.

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=30718

Reported-by: Dave Gilbert <freedesktop@treblig.org>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
13 years agodrm/radeon/kms: make TV/DFP table info less verbose
Alex Deucher [Fri, 8 Oct 2010 02:38:42 +0000 (22:38 -0400)]
drm/radeon/kms: make TV/DFP table info less verbose

Make TV standard and DFP table revisions debug only.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
13 years agodrm/radeon/kms: leave certain CP int bits enabled
Alex Deucher [Fri, 8 Oct 2010 16:09:12 +0000 (12:09 -0400)]
drm/radeon/kms: leave certain CP int bits enabled

These bits are used for internal communication and should
be left enabled.  This may fix s/r issues on some systems.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
13 years agodrm/radeon/kms: avoid corner case issue with unmappable vram V2
Jerome Glisse [Tue, 10 Aug 2010 21:41:31 +0000 (17:41 -0400)]
drm/radeon/kms: avoid corner case issue with unmappable vram V2

We should not allocate any object into unmappable vram if we
have no means to access them which on all GPU means having the
CP running and on newer GPU having the blit utility working.

This patch limit the vram allocation to visible vram until
we have acceleration up and running.

Note that it's more than unlikely that we run into any issue
related to that as when acceleration is not woring userspace
should allocate any object in vram beside front buffer which
should fit in visible vram.

V2 use real_vram_size as mc_vram_size could be bigger than
   the actual amount of vram

[airlied: fixup r700_cp_stop case]

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
13 years agoperf: Fix incorrect copy_from_user() usage
John Blackwood [Tue, 28 Sep 2010 22:03:11 +0000 (18:03 -0400)]
perf: Fix incorrect copy_from_user() usage

perf events: repair incorrect use of copy_from_user

This makes the perf_event_period() return 0 instead of
-EFAULT on success.

Signed-off-by: John Blackwood<john.blackwood@ccur.com>
Signed-off-by: Joe Korty <joe.korty@ccur.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100928220311.GA18145@tsunami.ccur.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agofanotify: disable fanotify syscalls
Eric Paris [Mon, 11 Oct 2010 22:13:31 +0000 (18:13 -0400)]
fanotify: disable fanotify syscalls

This patch disables the fanotify syscalls by just not building them and
letting the cond_syscall() statements in kernel/sys_ni.c redirect them
to sys_ni_syscall().

It was pointed out by Tvrtko Ursulin that the fanotify interface did not
include an explicit prioritization between groups.  This is necessary
for fanotify to be usable for hierarchical storage management software,
as they must get first access to the file, before inotify-like notifiers
see the file.

This feature can be added in an ABI compatible way in the next release
(by using a number of bits in the flags field to carry the info) but it
was suggested by Alan that maybe we should just hold off and do it in
the next cycle, likely with an (new) explicit argument to the syscall.
I don't like this approach best as I know people are already starting to
use the current interface, but Alan is all wise and noone on list backed
me up with just using what we have.  I feel this is needlessly ripping
the rug out from under people at the last minute, but if others think it
needs to be a new argument it might be the best way forward.

Three choices:
Go with what we got (and implement the new feature next cycle).  Add a
new field right now (and implement the new feature next cycle).  Wait
till next cycle to release the ABI (and implement the new feature next
cycle).  This is number 3.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agovideo: tegra: nvmap: fix read failures, super user and noref pinning
Gary King [Mon, 11 Oct 2010 21:22:35 +0000 (14:22 -0700)]
video: tegra: nvmap: fix read failures, super user and noref pinning

a >= vs > error when checking the operating region of the read and
write ioctls was causing failures when reading the last byte of a handle.

the super-user node (knvmap) wasn't registered correctly due to a cut-
and-paste error, and the regular user node was assigned super-user
priveleges.

noref pinning wasn't correctly validating that the specified handle
existed before pinning it, which caused the reference count for the
handle to become imbalanced on a subsequent unpin

Change-Id: I9985b85023705b00389a53fb962c3b60d62da6b8
Signed-off-by: Gary King <gking@nvidia.com>
13 years agotg3: restore rx_dropped accounting
Eric Dumazet [Sun, 10 Oct 2010 19:55:52 +0000 (19:55 +0000)]
tg3: restore rx_dropped accounting

commit 511d22247be7 (tg3: 64 bit stats on all arches), overlooked the
rx_dropped accounting.

We use a full "struct rtnl_link_stats64" to hold rx_dropped value, but
forgot to report it in tg3_get_stats64().

Use an "unsigned long" instead to shrink "struct tg3" by 176 bytes, and
report this value to stats readers.

Increment rx_dropped counter for oversized frames.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Michael Chan <mchan@broadcom.com>
CC: Matt Carlson <mcarlson@broadcom.com>
Acked-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agob44: fix carrier detection on bind
Paul Fertser [Mon, 11 Oct 2010 22:45:35 +0000 (15:45 -0700)]
b44: fix carrier detection on bind

For carrier detection to work properly when binding the driver with a cable
unplugged, netif_carrier_off() should be called after register_netdev(),
not before.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agox86, numa: For each node, register the memory blocks actually used
Yinghai Lu [Mon, 11 Oct 2010 02:52:15 +0000 (19:52 -0700)]
x86, numa: For each node, register the memory blocks actually used

Russ reported SGI UV is broken recently. He said:

| The SRAT table shows that memory range is spread over two nodes.
|
| SRAT: Node 0 PXM 0 100000000-800000000
| SRAT: Node 1 PXM 1 800000000-1000000000
| SRAT: Node 0 PXM 0 1000000000-1080000000
|
|Previously, the kernel early_node_map[] would show three entries
|with the proper node.
|
|[    0.000000]     0: 0x00100000 -> 0x00800000
|[    0.000000]     1: 0x00800000 -> 0x01000000
|[    0.000000]     0: 0x01000000 -> 0x01080000
|
|The problem is recent community kernel early_node_map[] shows
|only two entries with the node 0 entry overlapping the node 1
|entry.
|
|    0: 0x00100000 -> 0x01080000
|    1: 0x00800000 -> 0x01000000

After looking at the changelog, Found out that it has been broken for a while by
following commit

|commit 8716273caef7f55f39fe4fc6c69c5f9f197f41f1
|Author: David Rientjes <rientjes@google.com>
|Date:   Fri Sep 25 15:20:04 2009 -0700
|
|    x86: Export srat physical topology

Before that commit, register_active_regions() is called for every SRAT memory
entry right away.

Use nodememblk_range[] instead of nodes[] in order to make sure we
capture the actual memory blocks registered with each node.  nodes[]
contains an extended range which spans all memory regions associated
with a node, but that does not mean that all the memory in between are
included.

Reported-by: Russ Anderson <rja@sgi.com>
Tested-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <4CB27BDF.5000800@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: <stable@kernel.org> 2.6.33 .34 .35 .36
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
13 years agonet: clear heap allocations for privileged ethtool actions
Kees Cook [Mon, 11 Oct 2010 19:23:25 +0000 (12:23 -0700)]
net: clear heap allocations for privileged ethtool actions

Several other ethtool functions leave heap uncleared (potentially) by
drivers. Some interfaces appear safe (eeprom, etc), in that the sizes
are well controlled. In some situations (e.g. unchecked error conditions),
the heap will remain unchanged in areas before copying back to userspace.
Note that these are less of an issue since these all require CAP_NET_ADMIN.

Cc: stable@kernel.org
Signed-off-by: Kees Cook <kees.cook@canonical.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoNET: wimax, fix use after free
Jiri Slaby [Sun, 10 Oct 2010 23:26:58 +0000 (23:26 +0000)]
NET: wimax, fix use after free

Stanse found that i2400m_rx frees skb, but still uses skb->len even
though it has skb_len defined. So use skb_len properly in the code.

And also define it unsinged int rather than size_t to solve
compilation warnings.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Cc: linux-wimax@intel.com
Acked-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoATM: iphase, remove sleep-inside-atomic
Jiri Slaby [Sun, 10 Oct 2010 23:26:57 +0000 (23:26 +0000)]
ATM: iphase, remove sleep-inside-atomic

Stanse found that ia_init_one locks a spinlock and inside of that it
calls ia_start which calls:
* request_irq
* tx_init which does kmalloc(GFP_KERNEL)

Both of them can thus sleep and result in a deadlock. I don't see a
reason to have a per-device spinlock there which is used only there
and inited right before the lock location. So remove it completely.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoATM: mpc, fix use after free
Jiri Slaby [Sun, 10 Oct 2010 22:46:34 +0000 (22:46 +0000)]
ATM: mpc, fix use after free

Stanse found that mpc_push frees skb and then it dereferences it. It
is a typo, new_skb should be dereferenced there.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoATM: solos-pci, remove use after free
Jiri Slaby [Sun, 10 Oct 2010 21:50:44 +0000 (21:50 +0000)]
ATM: solos-pci, remove use after free

Stanse found we do in console_show:
  kfree_skb(skb);
  return skb->len;
which is not good. Fix that by remembering the len and use it in the
function instead.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuil...
Linus Torvalds [Mon, 11 Oct 2010 17:19:24 +0000 (10:19 -0700)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild-2.6

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  kbuild: fix oldnoconfig to do the right thing
  kconfig: Temporarily disable dependency warnings
  kconfig: delay symbol direct dependency initialization

13 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platf...
Linus Torvalds [Mon, 11 Oct 2010 17:05:05 +0000 (10:05 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mjg59/platform-drivers-x86

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
  IPS driver: Fix limit clamping when reducing CPU power
  [PATCH 2/2] IPS driver: disable CPU turbo
  IPS driver: apply BIOS provided CPU limit if different from default
  intel_ips -- ensure we do not enable gpu turbo mode without driver linkage
  intel_ips: Print MCP limit exceeded values.
  IPS driver: verify BIOS provided limits
  IPS driver: don't toggle CPU turbo on unsupported CPUs
  NULL pointer might be used in ips_monitor()
  Release symbol on error-handling path of ips_get_i915_syms()
  old_cpu_power is wrongly divided by 65535 in ips_monitor()
  seqno mask of THM_ITV register is 16bit

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Mon, 11 Oct 2010 17:03:19 +0000 (10:03 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - fix pressure in Cintiq 21UX2

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Mon, 11 Oct 2010 17:02:57 +0000 (10:02 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Add another HP DV6 quirk
  OSS: soundcard: locking bug in sound_ioctl()
  ASoC: Update links for Wolfson MAINTAINERS entry
  ASoC: Add Dimitris Papastamos to Wolfson maintainers
  ASoC: Add Jassi Brar as Samsung maintainer

13 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Mon, 11 Oct 2010 12:36:25 +0000 (14:36 +0200)]
Merge branch 'fix/asoc' into for-linus

13 years agoALSA: hda - Add another HP DV6 quirk
Luke Yelavich [Wed, 6 Oct 2010 04:45:46 +0000 (15:45 +1100)]
ALSA: hda - Add another HP DV6 quirk

BugLink: https://bugs.launchpad.net/bugs/653420
Add another HP DV6 notebook (103c:363e) to use STAC_HP_DV5.

Signed-off-by: Luke Yelavich <luke.yelavich@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoOSS: soundcard: locking bug in sound_ioctl()
Dan Carpenter [Sun, 10 Oct 2010 17:33:52 +0000 (19:33 +0200)]
OSS: soundcard: locking bug in sound_ioctl()

We shouldn't return directly here because we're still holding the
&soundcard_mutex.

This bug goes all the way back to the start of git.  It's strange that
no one has complained about it as a runtime bug.

CC: stable@kernel.org
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoKVM: x86: Move TSC reset out of vmcb_init
Zachary Amsden [Fri, 20 Aug 2010 08:07:19 +0000 (22:07 -1000)]
KVM: x86: Move TSC reset out of vmcb_init

The VMCB is reset whenever we receive a startup IPI, so Linux is setting
TSC back to zero happens very late in the boot process and destabilizing
the TSC.  Instead, just set TSC to zero once at VCPU creation time.

Why the separate patch?  So git-bisect is your friend.

Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>