linux.git/drivers/gpu/drm/cirrus, branch v3.12.65

drm/cirrus: bind also to qemu-xen-traditional

2014-11-13T18:02:20+00:00

commit c0c3e735fa7bae29c6623511127fd021b2d6d849 upstream.

qemu as used by xend/xm toolstack uses a different subvendor id.
Bind the drm driver also to this emulated card.

Signed-off-by: Olaf Hering 
Signed-off-by: Dave Airlie 
Signed-off-by: Jiri Slaby

drm: cirrus: add power management support

2014-05-15T07:56:18+00:00

commit 2f1e800799bf478494cec3573cd63eb34ca89c9d upstream.

cirrus kms driver lacks power management support, thus
the vga display doesn't work any more after S3 resume.

Fix this by adding suspend and resume functions.
Also make the mode_set function unblank the screen.

Signed-off-by: Gerd Hoffmann 
Signed-off-by: Dave Airlie 
Signed-off-by: Jiri Slaby

drm/cirrus: use drm_set_preferred_mode

2014-04-18T09:05:24+00:00

commit 121a6a17439b000b9699c3fa876636db20fa4107 upstream.

Explicitly set 1024x768 as default mode, so the display doesn't come up
with the largest supported mode.

While being at it drop first three drm_add_modes_noedid calls.  As
drm_add_modes_noedid fills the mode list with modes from the database
*up to* the specified size it is pretty pointless to call it multiple
times with different sizes.

Signed-off-by: Gerd Hoffmann 
Signed-off-by: Dave Airlie 
Signed-off-by: Jiri Slaby

drm/cirrus: Fix cirrus drm driver for fbdev + qemu

2014-04-18T08:59:50+00:00

commit 99d4a8ae93ead27b5a88cdbd09dc556fe96ac3a8 upstream.

Xorg fbdev driver requires smem_start/smem_len, otherwise
it tries to map 0 bytes as video memory.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=856760
Signed-off-by: Martin Koegler 
Signed-off-by: Takashi Iwai 
Signed-off-by: Dave Airlie 
Signed-off-by: Jiri Slaby

drm/mgag200,ast,cirrus: fix regression with drm_can_sleep conversion

2014-02-13T21:50:24+00:00

commit 8b7ad1bb3d440da888f2a939dc870eba429b9192 upstream.

I totally sign inverted my way out of this one.

Reported-by: "Sabrina Dubroca" 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm: ast,cirrus,mgag200: use drm_can_sleep

2014-02-13T21:50:24+00:00

commit f4b4718b61d1d5a7442a4fd6863ea80c3a10e508 upstream.

these 3 were checking in_interrupt but we have situations where
calling vunmap under this could cause a BUG to be hit in
smp_call_function_many. Use the drm_can_sleep macro instead,
which should stop this path from been taken in this case.

Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/cirrus: correct register values for 16bpp

2014-02-13T21:50:23+00:00

commit 2510538fa000dd13a3e57b79bf073ffb1748976c upstream.

When the mode is set with 16bpp on QEMU, the output gets totally broken.
The culprit is the bogus register values set for 16bpp, which was likely
copied from from a wrong place.

Addresses https://bugzilla.novell.com/show_bug.cgi?id=799216

Signed-off-by: Takashi Iwai 
Signed-off-by: Jiri Slaby 
Cc: David Airlie 
Signed-off-by: Andrew Morton 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-next

2013-09-01T23:31:40+00:00

Alex writes:
This is the radeon drm-next request.  Big changes include:
- support for dpm on CIK parts
- support for ASPM on CIK parts
- support for berlin GPUs
- major ring handling cleanup
- remove the old 3D blit code for bo moves in favor of CP DMA or sDMA
- lots of bug fixes

[airlied: fix up a bunch of conflicts from drm_order removal]

* 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux: (898 commits)
  drm/radeon/dpm: make sure dc performance level limits are valid (CI)
  drm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2)
  drm/radeon: gcc fixes for extended dpm tables
  drm/radeon: gcc fixes for kb/kv dpm
  drm/radeon: gcc fixes for ci dpm
  drm/radeon: gcc fixes for si dpm
  drm/radeon: gcc fixes for ni dpm
  drm/radeon: gcc fixes for trinity dpm
  drm/radeon: gcc fixes for sumo dpm
  drm/radeonn: gcc fixes for rv7xx/eg/btc dpm
  drm/radeon: gcc fixes for rv6xx dpm
  drm/radeon: gcc fixes for radeon_atombios.c
  drm/radeon: enable UVD interrupts on CIK
  drm/radeon: fix init ordering for r600+
  drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled
  drm/radeon: check the return value of uvd_v1_0_start in uvd_v1_0_init
  drm/radeon: split out radeon_uvd_resume from uvd_v4_2_resume
  radeon kms: fix uninitialised hotplug work usage in r100_irq_process()
  drm/radeon/audio: set up the sads on DCE3.2 asics
  drm/radeon: fix handling of variable sized arrays for router objects
  ...

Conflicts:
	drivers/gpu/drm/i915/i915_dma.c
	drivers/gpu/drm/i915/i915_gem_dmabuf.c
	drivers/gpu/drm/i915/intel_pm.c
	drivers/gpu/drm/radeon/cik.c
	drivers/gpu/drm/radeon/ni.c
	drivers/gpu/drm/radeon/r600.c

drm: verify vma access in TTM+GEM drivers

2013-08-27T01:54:58+00:00

GEM does already a good job in tracking access to gem buffers via handles
and drm_vma access management. However, TTM drivers currently do not
verify this during mmap().

TTM provides the verify_access() callback to test this. So fix all drivers
to actually call into gem+vma to verify access instead of always returning
0.

All drivers assume that user-space can only get access to TTM buffers via
GEM handles. So whenever the verify_access() callback is called from
ttm_bo_mmap(), the buffer must have a valid embedded gem object. This is
true for all TTM+GEM drivers. But that's why this patch doesn't touch pure
TTM drivers (ie, vmwgfx).

v2: Switch to drm_vma_node_verify_access() to correctly return -EACCES if
    access was denied.

Cc: Dave Airlie 
Cc: Alex Deucher 
Cc: Ben Skeggs 
Cc: Maarten Lankhorst 
Cc: Jerome Glisse 
Signed-off-by: David Herrmann 
Signed-off-by: Dave Airlie

drm: rip out drm_core_has_MTRR checks

2013-08-19T04:11:44+00:00

The new arch_phys_wc_add/del functions do the right thing both with
and without MTRR support in the kernel. So we can drop these
additional checks.

David Herrmann suggest to also kill the DRIVER_USE_MTRR flag since
it's now unused, which spurred me to do a bit a better audit of the
affected drivers. David helped a lot in that. Quoting our mail
discussion:

On Wed, Jul 10, 2013 at 5:41 PM, David Herrmann  wrote:
> On Wed, Jul 10, 2013 at 5:22 PM, Daniel Vetter  wrote:
>> On Wed, Jul 10, 2013 at 3:51 PM, David Herrmann  wrote:
>>>> -#if __OS_HAS_MTRR
>>>> -static inline int drm_core_has_MTRR(struct drm_device *dev)
>>>> -{
>>>> -       return drm_core_check_feature(dev, DRIVER_USE_MTRR);
>>>> -}
>>>> -#else
>>>> -#define drm_core_has_MTRR(dev) (0)
>>>> -#endif
>>>> -
>>>
>>> That was the last user of DRIVER_USE_MTRR (apart from drivers setting
>>> it in .driver_features). Any reason to keep it around?
>>
>> Yeah, I guess we could rip things out. Which will also force me to
>> properly audit drivers for the eventual behaviour change this could
>> entail (in case there's an x86 driver which did not ask for an mtrr,
>> but iirc there isn't).
>
> david@david-mb ~/dev/kernel/linux $ for i in drivers/gpu/drm/* ; do if
> test -d "$i" ; then if ! grep -q USE_MTRR -r $i ; then echo $i ; fi ;
> fi ; done
> drivers/gpu/drm/exynos
> drivers/gpu/drm/gma500
> drivers/gpu/drm/i2c
> drivers/gpu/drm/nouveau
> drivers/gpu/drm/omapdrm
> drivers/gpu/drm/qxl
> drivers/gpu/drm/rcar-du
> drivers/gpu/drm/shmobile
> drivers/gpu/drm/tilcdc
> drivers/gpu/drm/ttm
> drivers/gpu/drm/udl
> drivers/gpu/drm/vmwgfx
> david@david-mb ~/dev/kernel/linux $
>
> So for x86 gma500,nouveau,qxl,udl,vmwgfx don't set DRIVER_USE_MTRR.
> But I cannot tell whether they break if we call arch_phys_wc_add/del,
> anyway. At least nouveau seemed to work here, but it doesn't use AGP
> or drm_bufs, I guess.

Cool, thanks a lot for stitching together the list of drivers to look
at. So for real KMS drivers it's the drives responsibility to add an
mtrr if it needs one. nouvea, radeon, mgag200, i915 and vmwgfx do that
already. Somehow the savage driver also ends up doing that, I have no
idea why.

Note that gma500 as a pure KMS driver doesn't need MTRR setup since
the platforms that it supports all support PAT. So no MTRRs needed to
get wc iomappings.

The mtrr support in the drm core is all for legacy mappings of garts,
framebuffers and registers. All legacy drivers set the USE_MTRR flag,
so we're good there.

All in all I think we can really just ditch this

/endquote

v2: Also kill DRIVER_USE_MTRR as suggested by David Herrmann

v3: Rebase on top of David Herrmann's agp setup/cleanup changes.

Cc: David Herrmann 
Cc: Andy Lutomirski 
Signed-off-by: Daniel Vetter 
Acked-by: Andy Lutomirski 
Reviewed-by: David Herrmann 
Signed-off-by: Dave Airlie