drm/amdgpu/gfx8: specify which engine to wait before vm flush

Select between me and pfp properly.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 1c40bd9..7086ac1 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4809,7 +4809,8 @@ static void gfx_v8_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
 
        amdgpu_ring_write(ring, PACKET3(PACKET3_WAIT_REG_MEM, 5));
        amdgpu_ring_write(ring, (WAIT_REG_MEM_MEM_SPACE(1) | /* memory */
-                WAIT_REG_MEM_FUNCTION(3))); /* equal */
+                                WAIT_REG_MEM_FUNCTION(3) | /* equal */
+                                WAIT_REG_MEM_ENGINE(usepfp))); /* pfp or me */
        amdgpu_ring_write(ring, addr & 0xfffffffc);
        amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
        amdgpu_ring_write(ring, seq);