drm/amdgpu:insert switch buffer only for VM submit

for non-VM submit which is from kernel side, no need
to switch buffer at all.

Signed-off-by: Monk Liu <Monk.Liu@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 5329ac9..dcf1d8a 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -224,7 +224,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
                amdgpu_ring_patch_cond_exec(ring, patch_offset);
 
        ring->current_ctx = fence_ctx;
-       if (ring->funcs->emit_switch_buffer)
+       if (vm && ring->funcs->emit_switch_buffer)
                amdgpu_ring_emit_switch_buffer(ring);
        amdgpu_ring_commit(ring);
        return 0;