From: Chunming Zhou Date: Wed, 27 Apr 2016 10:07:41 +0000 (+0800) Subject: drm/amdgpu: add pipeline sync for compute job X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fe707664879b15b9caafd3b9f0f9897aa26a7edd;p=linux-beck.git drm/amdgpu: add pipeline sync for compute job hardware ring is async processed, the job is executed in parallel. In some case, this will result vm fault, like jobs with different vmids. This works around a CPC hw issue which will eventually be fixed in fw. Signed-off-by: Chunming Zhou Reviewed-by: Alex Deucher Reviewed-by: Christian König Reviewed-by: Monk Liu Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 692d0d02b644..62ce7253e917 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -300,7 +300,8 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, int r; if (ring->funcs->emit_pipeline_sync && ( - pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed)) + pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed || + ring->type == AMDGPU_RING_TYPE_COMPUTE)) amdgpu_ring_emit_pipeline_sync(ring); if (ring->funcs->emit_vm_flush &&