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cda4b7d3a5
linux/drivers/gpu/drm/i915
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Chris Wilson cda4b7d3a5 drm/i915: Unset cursor if out-of-bounds upon mode change (v4) 
The docs warn that to position the cursor such that no part of it is
visible on the pipe is an undefined operation. Avoid such circumstances
upon changing the mode, or at any other time, by unsetting the cursor if
it moves out of bounds.

"For normal high resolution display modes, the cursor must have at least a
single pixel positioned over the active screen.” (p143, p148 of the hardware
registers docs).

Fixes:

  Bug 24748 - [965G] Graphics crashes when resolution is changed with KMS
              enabled
  https://bugs.freedesktop.org/show_bug.cgi?id=24748

v2: Only update the cursor registers if they change.
v3: Fix the unsigned comparision of x,y against width,height.
v4: Always set CUR.BASE or else the cursor may become corrupt.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Christian Eggers <ceggers@gmx.de>
Cc: Christopher James Halse Rogers  <chalserogers@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-08-01 19:58:28 -07:00
..
dvo_ch7xxx.c drm/i915: Remove dead KMS encoder save/restore code. 2010-04-12 09:23:30 -07:00
dvo_ch7017.c drm/i915: Remove dead KMS encoder save/restore code. 2010-04-12 09:23:30 -07:00
dvo_ivch.c drm/i915: Remove dead KMS encoder save/restore code. 2010-04-12 09:23:30 -07:00
dvo_sil164.c drm/i915: Remove dead KMS encoder save/restore code. 2010-04-12 09:23:30 -07:00
dvo_tfp410.c drm/i915: Use RSEN instead of HTPLG for tfp410 monitor detection. 2010-06-04 16:39:59 -07:00
dvo.h drm/i915: Remove dead KMS encoder save/restore code. 2010-04-12 09:23:30 -07:00
i915_debugfs.c drm/i915: disable FBC when more than one pipe is active 2010-07-26 11:27:06 -07:00
i915_dma.c Merge remote branch 'origin/master' into drm-intel-next 2010-08-01 19:34:47 -07:00
i915_drv.c drm/i915: Refactor i915_gem_retire_requests() 2010-08-01 19:52:57 -07:00
i915_drv.h drm/i915: Repeat unbinding during free if interrupted (v6) 2010-08-01 19:53:24 -07:00
i915_gem_debug.c drm/i915: drop pointer to drm_gem_object 2010-04-20 13:23:14 +10:00
i915_gem_tiling.c drm/i915: Remove the WARN when failing to set tiling. 2010-08-01 19:03:46 -07:00
i915_gem.c drm/i915: Unreference object not handle on creation 2010-08-01 19:58:06 -07:00
i915_ioc32.c drm: convert drm_ioctl to unlocked_ioctl 2009-12-18 11:22:31 +10:00
i915_irq.c drm/i915: Include instdone[1] in hangcheck 2010-08-01 19:03:46 -07:00
i915_mem.c drm: Remove memory debugging infrastructure. 2009-06-18 13:00:33 -07:00
i915_opregion.c drm/i915: set DIDL using the ACPI video output device _ADR method return. 2010-04-18 17:05:13 -07:00
i915_reg.h Merge remote branch 'origin/master' into drm-intel-next 2010-08-01 19:34:47 -07:00
i915_suspend.c drm/i915: Add frame buffer compression support on Ironlake mobile 2010-08-01 19:03:44 -07:00
i915_trace_points.c drm/i915: Add tracepoints 2009-09-23 01:05:21 +01:00
i915_trace.h drm/i915: add tracepoints for flip requests & completions 2010-07-02 14:04:14 +10:00
intel_bios.c drm/i915: Honor sync polarity from VBT panel timing descriptors 2010-06-01 10:19:37 -07:00
intel_bios.h drm/i915: parse eDP panel color depth from VBT block 2010-01-15 14:12:47 -08:00
intel_crt.c drm/i915: Fix CRT hotplug regression in 2.6.35-rc1 2010-07-01 15:35:57 -07:00
intel_display.c drm/i915: Unset cursor if out-of-bounds upon mode change (v4) 2010-08-01 19:58:28 -07:00
intel_dp.c drm/i915: Validate the mode for eDP by using fixed panel size 2010-08-01 19:40:38 -07:00
intel_drv.h drm/i915: Unset cursor if out-of-bounds upon mode change (v4) 2010-08-01 19:58:28 -07:00
intel_dvo.c Merge remote branch 'anholt/drm-intel-next' of /home/airlied/kernel/drm-next into drm-core-next 2010-04-20 13:11:45 +10:00
intel_fb.c drm/i915: fix deadlock in fb teardown 2010-07-26 11:27:46 -07:00
intel_hdmi.c drm/i915/hdmi: Set sync polarity based on actual mode 2010-08-01 19:38:08 -07:00
intel_i2c.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
intel_lvds.c drm/i915: Refactor panel fitting on the LVDS. (v2) 2010-08-01 19:35:17 -07:00
intel_modes.c Merge remote branch 'anholt/drm-intel-next' of /home/airlied/kernel/drm-next into drm-core-next 2010-04-20 13:11:45 +10:00
intel_overlay.c drm/i915: Typo in (unused) register mask for overlay. 2010-08-01 19:46:39 -07:00
intel_ringbuffer.c drm/i915: Account for space on the ring buffer consumed whilst wrapping. 2010-07-01 15:28:08 -07:00
intel_ringbuffer.h drm/i915: introduce intel_ring_buffer structure (V2) 2010-05-26 13:24:49 -07:00
intel_sdvo_regs.h drm/i915: enable sdvo lvds scaling function. 2009-07-01 11:44:45 -07:00
intel_sdvo.c drm/i915/sdvo: Set sync polarity based on actual mode 2010-08-01 19:38:12 -07:00
intel_tv.c drm/i915: cleanup: use ARRAY_SIZE() 2010-08-01 19:03:46 -07:00
Makefile drm/i915: Move ringbuffer-related code to intel_ringbuffer.c. 2010-05-26 12:36:00 -07:00