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| author | Chunming Zhou <David1.Zhou@amd.com> | 2016-04-27 10:07:41 (GMT) |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-05-11 16:31:16 (GMT) |
| commit | fe707664879b15b9caafd3b9f0f9897aa26a7edd (patch) | |
| tree | a3a51520004a57177942dbc50d2469981794a036 | |
| parent | c5637837ba5d5b5e962e73f5a1a7c5456fa85a68 (diff) | |
| download | linux-fe707664879b15b9caafd3b9f0f9897aa26a7edd.tar.xz | |
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 <David1.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -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 692d0d02..62ce725 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 && |