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drm/amdgpu/sdma4: drop hdp flush from wptr shadow update 

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

Cc: Frank Min <Frank.Min@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2017-07-27 15:30:27 -04:00
parent 575a07d2da
commit a67094432d
1 changed files with 0 additions and 1 deletions
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1
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
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@ -313,7 +313,6 @@ static void sdma_v4_0_ring_set_wptr(struct amdgpu_ring *ring)
offset = adev->sdma.instance[i].poll_mem_offs; offset = adev->sdma.instance[i].poll_mem_offs;
atomic64_set((atomic64_t *)&adev->wb.wb[offset], atomic64_set((atomic64_t *)&adev->wb.wb[offset],
(ring->wptr << 2)); (ring->wptr << 2));
nbio_v6_1_hdp_flush(adev);
} }
} }
} }