drm/amdgpu: Add mem sync flag for IB allocated by SA

The buffer of SA bo will be used by many cases. So it's better
to invalidate the cache of indirect buffer allocated by SA before
commit the IB.

Signed-off-by: Jinzhou Su <Jinzhou.Su@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 148a3b481b12970826d346bc083d358275aad292..a2fe2dac32c16f1f0d35e111b2a70cf04dcb18b8 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -76,6 +76,8 @@ int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm,
                }
 
                ib->ptr = amdgpu_sa_bo_cpu_addr(ib->sa_bo);
+               /* flush the cache before commit the IB */
+               ib->flags = AMDGPU_IB_FLAG_EMIT_MEM_SYNC;
 
                if (!vm)
                        ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);