drm/nouveau: workaround semaphore hw bug causing unnecessary interrupts

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The HW will only accept the DMA_FROM_MEMORY class for DMA_SEMAPHORE without
asking the driver to intervene.

It appears that semaphores will work correctly even without DMA_IN_MEMORY,
so lets avoid the large amount of interrupts generated by x-chan sync.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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Ben Skeggs 2011-07-25 20:26:19 +10:00

parent afb0c796d8

commit 91a8f1ea4b

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/nouveau/nouveau_fence.c

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