drm/i915: implement fastpath for overlay flip waiting

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As long as the gpu can keep up, neither the cpu (waiting for gpu)
nore the gpu (waiting for vblank to do an overlay flip) stalls.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>

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Daniel Vetter 2009-09-15 22:57:36 +02:00 • committed by Eric Anholt

parent 240a2d12df

commit 5a5a0c64a9

4 changed files with 41 additions and 11 deletions

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3

drivers/gpu/drm/i915/i915_drv.h

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4

drivers/gpu/drm/i915/i915_gem.c

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2

drivers/gpu/drm/i915/intel_drv.h

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43

drivers/gpu/drm/i915/intel_overlay.c

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