]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915: mark a newly-created GEM object dirty when filled with data
authorDave Gordon <david.s.gordon@intel.com>
Thu, 10 Dec 2015 18:51:24 +0000 (18:51 +0000)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 11 Dec 2015 17:20:19 +0000 (18:20 +0100)
commit40f33e25b3873f5d2f026e4e626a2daabee83ead
tree60077e145dbafefaa287eb6d31f6bbec73324c0f
parentd5fa9077b065388ba3e754a21db156770a273a5b
drm/i915: mark a newly-created GEM object dirty when filled with data

When creating a new (pageable) GEM object and filling it with data, we
must mark it as 'dirty', i.e. backing store is out-of-date w.r.t. the
newly-written content. This ensures that if the object is evicted under
memory pressure, its pages in the pagecache will be written to backing
store rather than discarded.

Based on an original version by Alex Dai.

Signed-off-by: Alex Dai <yu.dai@intel.com>
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1449773486-30822-3-git-send-email-david.s.gordon@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_gem.c