drm/i915: Track display alignment on VMA

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When using the aliasing ppgtt and pageflipping with the shrinker/eviction
active, we note that we often have to rebind the backbuffer before
flipping onto the scanout because it has an invalid alignment. If we
store the worst-case alignment required for a VMA, we can avoid having
to rebind at critical junctures.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-28-chris@chris-wilson.co.uk

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Chris Wilson 2016-08-18 17:17:07 +01:00

parent 2efb813d53

commit d8923dcfa5

2 changed files with 9 additions and 13 deletions

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21

drivers/gpu/drm/i915/i915_gem.c

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1

drivers/gpu/drm/i915/i915_gem_gtt.h

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