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dma-buf: allow reserving more than one shared fence slot

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Let's support simultaneous submissions to multiple engines.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Link: https://patchwork.kernel.org/patch/10626149/
This commit is contained in:
Christian König
2018-09-19 16:12:25 +02:00
parent 27836b641c
commit ca05359f1e
16 changed files with 28 additions and 23 deletions
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2
drivers/gpu/drm/vgem/vgem_fence.c
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@@ -180,7 +180,7 @@ int vgem_fence_attach_ioctl(struct drm_device *dev,
reservation_object_lock(resv, NULL);
if (arg->flags & VGEM_FENCE_WRITE)
reservation_object_add_excl_fence(resv, fence);
else if ((ret = reservation_object_reserve_shared(resv)) == 0)
else if ((ret = reservation_object_reserve_shared(resv, 1)) == 0)
reservation_object_add_shared_fence(resv, fence);
reservation_object_unlock(resv);