[PATCH 3/5] drm/amdgpu/sdma4: drop hdp flush from wptr shadow update

[Alex Deucher]

The wb buffer is in system memory, not vram so the flush
is useless.

Cc: Frank Min <Frank.Min at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 9392799..3ffdf88 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -312,7 +312,6 @@ static void sdma_v4_0_ring_set_wptr(struct amdgpu_ring *ring)
 					offset = adev->sdma.instance[i].poll_mem_offs;
 					atomic64_set((atomic64_t *)&adev->wb.wb[offset],
 						     (ring->wptr << 2));
-					nbio_v6_1_hdp_flush(adev);
 				}
 			}
 		}
-- 
2.5.5