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drm/i915: Rotated view does not need a fence

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We do not need to set up a fence for the rotated view.

Display does not need it and no one can access it.

v2: Move code to __i915_vma_set_map_and_fenceable. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: 05a20d098d ("drm/i915: Move map-and-fenceable tracking to the VMA")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Tvrtko Ursulin 2016-10-25 17:40:35 +01:00
parent ed4596ea99
commit 07ee2bce6a
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/i915/i915_gem.c
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@ -3790,7 +3790,12 @@ void __i915_vma_set_map_and_fenceable(struct i915_vma *vma)
mappable = (vma->node.start + fence_size <=
dev_priv->ggtt.mappable_end);
if (mappable && fenceable)
/*
* Explicitly disable for rotated VMA since the display does not
* need the fence and the VMA is not accessible to other users.
*/
if (mappable && fenceable &&
vma->ggtt_view.type != I915_GGTT_VIEW_ROTATED)
vma->flags |= I915_VMA_CAN_FENCE;
else
vma->flags &= ~I915_VMA_CAN_FENCE;