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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>
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@ -313,7 +313,6 @@ static void sdma_v4_0_ring_set_wptr(struct amdgpu_ring *ring)
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offset = adev->sdma.instance[i].poll_mem_offs;
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atomic64_set((atomic64_t *)&adev->wb.wb[offset],
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(ring->wptr << 2));
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nbio_v6_1_hdp_flush(adev);
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}
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}
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}
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