linux-stable.git/drivers/gpu, branch v4.1.38

drivers/gpu/drm/ast: Fix infinite loop if read fails

2017-01-13T01:56:58+00:00

[ Upstream commit 298360af3dab45659810fdc51aba0c9f4097e4f6 ]

ast_get_dram_info() configures a window in order to access BMC memory.
A BMC register can be configured to disallow this, and if so, causes
an infinite loop in the ast driver which renders the system unusable.

Fix this by erroring out if an error is detected.  On powerpc systems with
EEH, this leads to the device being fenced and the system continuing to
operate.

Cc:  # 3.10+
Signed-off-by: Russell Currey 
Reviewed-by: Joel Stanley 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/20161215051241.20815-1-ruscur@russell.cc
Signed-off-by: Sasha Levin

drm/radeon: add additional pci revision to dpm workaround

2017-01-13T01:56:56+00:00

[ Upstream commit 8729675c00a8d13cb2094d617d70a4a4da7d83c5 ]

New variant.

Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

drm/radeon: Hide the HW cursor while it's out of bounds

2017-01-13T01:56:56+00:00

[ Upstream commit 6b16cf7785a4200b1bddf4f70c9dda2efc49e278 ]

Fixes hangs in that case under some circumstances.

v2:
* Only use non-0 x/yorigin if the cursor is (partially) outside of the
  top/left edge of the total surface with AVIVO/DCE

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1000433
Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer 
Reviewed-by: Alex Deucher  (v1)
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/radeon: Always store CRTC relative radeon_crtc->cursor_x/y values

2017-01-13T01:56:56+00:00

[ Upstream commit 4349bd775cc8fd75cb648e3a2036a690f497de5c ]

We were storing viewport relative coordinates for AVIVO/DCE display
engines. However, radeon_crtc_cursor_set2 and radeon_cursor_reset pass
radeon_crtc->cursor_x/y as the x/y parameters of
radeon_cursor_move_locked, which would break if the CRTC isn't located
at (0, 0).

Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/radeon: Also call cursor_move_locked when the cursor size changes

2017-01-13T01:56:56+00:00

[ Upstream commit dcab0fa64e300afa18f39cd98d05e0950f652adf ]

The cursor size also affects the register programming.

Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/gma500: Add compat ioctl

2017-01-13T01:56:52+00:00

[ Upstream commit 0a97c81a9717431e6c57ea845b59c3c345edce67 ]

Hook up drm_compat_ioctl to support 32-bit userspace on 64-bit kernels.
It turns out that N2600 and N2800 comes with 64-bit enabled. We
previously assumed there where no such systems out there.

Cc: stable@vger.kernel.org
Signed-off-by: Patrik Jakobsson 
Signed-off-by: Sean Paul 
Link: http://patchwork.freedesktop.org/patch/msgid/20161101144315.2955-1-patrik.r.jakobsson@gmail.com
Signed-off-by: Sasha Levin

drm/i915: Unalias obj->phys_handle and obj->userptr

2017-01-13T01:50:07+00:00

[ Upstream commit 5f12b80a0b42da253691ca03828033014bb786eb ]

We use obj->phys_handle to choose the pread/pwrite path, but as
obj->phys_handle is a union with obj->userptr, we then mistakenly use
the phys_handle path for userptr objects within pread/pwrite.

Testcase: igt/gem_userptr_blits/forbidden-operations
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97519
Signed-off-by: Chris Wilson 
Cc: stable@vger.kernel.org
Reviewed-by: Joonas Lahtinen 
Link: http://patchwork.freedesktop.org/patch/msgid/20161003124516.12388-2-chris@chris-wilson.co.uk
Signed-off-by: Sasha Levin

drm/i915/gen9: fix the WaWmMemoryReadLatency implementation

2017-01-12T17:12:04+00:00

[ Upstream commit 0727e40a48a1d08cf54ce2c01e120864b92e59bf ]

Bspec says:
  "The mailbox response data may not account for memory read latency.
   If the mailbox response data for level 0 is 0us, add 2 microseconds
   to the result for each valid level."

This means we should only do the +2 in case wm[0] == 0, not always.

So split the sanitizing implementation from the WA implementation and
fix the WA implementation.

v2: Add Fixes tag (Maarten).

Fixes: 367294be7c25 ("drm/i915/gen9: Add 2us read latency to WM level")
Cc: stable@vger.kernel.org
Cc: Vandana Kannan 
Reviewed-by: Maarten Lankhorst 
Signed-off-by: Paulo Zanoni 
Link: http://patchwork.freedesktop.org/patch/msgid/1474578035-424-5-git-send-email-paulo.r.zanoni@intel.com
Signed-off-by: Sasha Levin

drm/msm: fix use of copy_from_user() while holding spinlock

2016-12-22T03:45:42+00:00

[ Upstream commit 89f82cbb0d5c0ab768c8d02914188aa2211cd2e3 ]

Use instead __copy_from_user_inatomic() and fallback to slow-path where
we drop and re-aquire the lock in case of fault.

Cc: stable@vger.kernel.org
Reported-by: Vaishali Thakkar 
Signed-off-by: Rob Clark 
Signed-off-by: Sasha Levin

drm/radeon/si_dpm: workaround for SI kickers

2016-11-26T03:57:03+00:00

[ Upstream commit 7dc86ef5ac91642dfc3eb93ee0f0458e702a343e ]

Consolidate existing quirks. Fixes stability issues
on some kickers.

Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin