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(parent: c2e22e2) | patch
drm/nouveau/instmem/gk20a: add write barrier when releasing DMA object
authorAlexandre Courbot <acourbot@nvidia.com>
Thu, 3 Mar 2016 07:38:12 +0000 (16:38 +0900)
committerBen Skeggs <bskeggs@redhat.com>
Mon, 14 Mar 2016 00:13:34 +0000 (10:13 +1000)
commit55a82eed73c8c9d18ae780db3c1f0edffca72504
treed80f3a467335d5722c8af6f17bd812e5f4d15f9atree | snapshot
parentc2e22e22ca7d7ec84d139ec56ac5fabd81f1a124commit | diff
drm/nouveau/instmem/gk20a: add write barrier when releasing DMA object

When using the DMA-API for instmem, we may obtain a write-combined
mapping. For such cases, add a write barrier in
gk20a_instobj_release_dma() to make sure that all writes have reached
memory at this time.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c diff | blob | history
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