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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2014-03-21 13:16:43 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-03-21 16:13:14 +0100 |
| commit | 698b3135acb94e838a33a69f1a7a684fe0d90734 (patch) | |
| tree | dc610c8c34825f722ac354393586c6ded3e55c45 /drivers/gpu/drm/i915/intel_lvds.c | |
| parent | d0a7b6de04dab17ee2c0cde22705d48c4ce5f6e0 (diff) | |
drm/i915: Include a note about the dangers of I915_READ64/I915_WRITE64
It is important that the user is fully aware that the seemingly atomic
read/write of a 64-bit value from MMIO space, may in fact be 2 separate
operations of 32-bits. This can lead to hilarity, such as
commit d18b9619034230b6f945e215276425636ca401fe
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed Jul 10 13:36:23 2013 +0100
drm/i915: Fix incoherence with fence updates on Sandybridge+
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
0 files changed, 0 insertions, 0 deletions