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(parent: 68f95ba) | patch
drm/i915: Avoid moving from CPU domain during pwrite
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 27 May 2010 13:21:01 +0000 (14:21 +0100)
committerEric Anholt <eric@anholt.net>
Fri, 28 May 2010 18:02:00 +0000 (11:02 -0700)
commit9b8c4a0b215e603497daebe8ecbc9b1f0f035808
tree50aa5824d31631d4b4ec21d5fd23a581d715c092tree | snapshot
parent68f95ba9e260516411411524c45263b5d53f393ccommit | diff
drm/i915: Avoid moving from CPU domain during pwrite

We can avoid an early clflush when pwriting if we use the current CPU
write domain rather than moving the object to the GTT domain for the
purposes of the pwrite. This has the advantage of not flushing the
presumably hot data that we want to upload into the bo, and of ascribing
the clflush to the execution when profiling.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
drivers/gpu/drm/i915/i915_gem.c diff | blob | history
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