diff options
| author | Chunming Zhou <[email protected]> | 2016-04-27 18:07:41 +0800 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2016-05-11 12:31:16 -0400 |
| commit | fe707664879b15b9caafd3b9f0f9897aa26a7edd (patch) | |
| tree | a3a51520004a57177942dbc50d2469981794a036 | |
| parent | c5637837ba5d5b5e962e73f5a1a7c5456fa85a68 (diff) | |
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 <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Reviewed-by: Christian König <[email protected]>
Reviewed-by: Monk Liu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 3 |
1 files changed, 2 insertions, 1 deletions
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 && |