linux-toradex.git/drivers/gpu/drm/ttm/ttm_tt.c, branch v4.4.69

drivers: gpu: Drop unlikely before IS_ERR(_OR_NULL)

2015-08-06T12:13:07+00:00

IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there
is no need to do that again from its callers. Drop it.

Signed-off-by: Viresh Kumar 
Reviewed-by: Sinclair Yeh 
Signed-off-by: Daniel Vetter

drm/ttm: expose CPU address of DMA-allocated pages

2014-08-09T15:08:03+00:00

Pages allocated using the DMA API have a coherent memory mapping. Make
this mapping visible to drivers so they can decide to use it instead of
creating their own redundant one.

Signed-off-by: Alexandre Courbot 
Acked-by: David Airlie 
Signed-off-by: Ben Skeggs

drm/ttm: Don't clear page metadata of imported sg pages

2014-02-05T15:03:29+00:00

These page pointers shouldn't be visible to TTM in the first place, but
until we fix that up, don't clear the page metadata because that
will upset the exporter.

Reported-and-tested-by: Cristoph Haag 
Signed-off-by: Thomas Hellstrom 
Reviewed-by: Jakob Bornecrantz

drm/ttm: Correctly set page mapping and -index members

2014-01-08T09:08:28+00:00

Needed for some vm operations; most notably unmap_mapping_range() with
even_cows = 0.

Signed-off-by: Thomas Hellstrom 
Reviewed-by: Brian Paul

drm/ttm: fix the tt_populated check in ttm_tt_destroy()

2013-09-19T01:48:30+00:00

After a vmalloc failure in ttm_dma_tt_alloc_page_directory(),
ttm_dma_tt_init() will call ttm_tt_destroy() to cleanup, and end up
inside the driver's unpopulate() hook when populate() has never yet
been called.

On nouveau, the first issue to be hit because of this is that
dma_address[] may be a NULL pointer.  After working around this,
ttm_pool_unpopulate() may potentially hit the same issue with
the pages[] array.

It seems to make more sense to avoid calling unpopulate on already
unpopulated TTMs than to add checks to all the implementations.

Signed-off-by: Ben Skeggs 
Reviewed-by: Thomas Hellstrom 
Cc: stable@vger.kernel.org
Cc: Jerome Glisse 
Signed-off-by: Dave Airlie

new helper: file_inode(file)

2013-02-23T04:31:31+00:00

Signed-off-by: Al Viro

drm/ttm: remove unneeded preempt_disable/enable

2012-11-15T23:59:51+00:00

It is unnecessary to disable preemption explicitly while calling
copy_highpage().  Because copy_highpage() will do it again through
kmap_atomic/kunmap_atomic.

Signed-off-by: Akinobu Mita 
Reviewed-by: Thomas Hellstrom 
Signed-off-by: Dave Airlie

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2012-10-04T06:29:23+00:00

Pull drm merge (part 1) from Dave Airlie:
 "So first of all my tree and uapi stuff has a conflict mess, its my
  fault as the nouveau stuff didn't hit -next as were trying to rebase
  regressions out of it before we merged.

  Highlights:
   - SH mobile modesetting driver and associated helpers
   - some DRM core documentation
   - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
     combined pte writing, ilk rc6 support,
   - nouveau: major driver rework into a hw core driver, makes features
     like SLI a lot saner to implement,
   - psb: add eDP/DP support for Cedarview
   - radeon: 2 layer page tables, async VM pte updates, better PLL
     selection for > 2 screens, better ACPI interactions

  The rest is general grab bag of fixes.

  So why part 1? well I have the exynos pull req which came in a bit
  late but was waiting for me to do something they shouldn't have and it
  looks fairly safe, and David Howells has some more header cleanups
  he'd like me to pull, that seem like a good idea, but I'd like to get
  this merge out of the way so -next dosen't get blocked."

Tons of conflicts mostly due to silly include line changes, but mostly
mindless.  A few other small semantic conflicts too, noted from Dave's
pre-merged branch.

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
  drm/nv98/crypt: fix fuc build with latest envyas
  drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
  drm/nv41/vm: fix and enable use of "real" pciegart
  drm/nv44/vm: fix and enable use of "real" pciegart
  drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
  drm/nouveau: store supported dma mask in vmmgr
  drm/nvc0/ibus: initial implementation of subdev
  drm/nouveau/therm: add support for fan-control modes
  drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
  drm/nouveau/therm: calculate the pwm divisor on nv50+
  drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
  drm/nouveau/therm: move thermal-related functions to the therm subdev
  drm/nouveau/bios: parse the pwm divisor from the perf table
  drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
  drm/nouveau/therm: rework thermal table parsing
  drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
  drm/nouveau: fix pm initialization order
  drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
  drm/nouveau: log channel debug/error messages from client object rather than drm client
  drm/nouveau: have drm debugging macros build on top of core macros
  ...

UAPI: (Scripted) Convert #include "..." to #include in drivers/gpu/

2012-10-02T17:01:07+00:00

Convert #include "..." to #include  in drivers/gpu/.

Signed-off-by: David Howells 
Acked-by: Dave Airlie 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones

gpu/drm/ttm: use copy_highpage

2012-10-01T23:26:17+00:00

Use copy_highpage() to copy from one page to another.

Signed-off-by: Akinobu Mita 
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dave Airlie