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drm/amdgpu: remove 128 NOP hack from vm_flush v2

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With the padding raised to 256 DW that shouldn't be needed any more.

v2: reduce estimation as well

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2016-10-05 12:59:20 +02:00
committed by Alex Deucher
parent c81b07e6bc
commit e08c90a774
1 changed files with 1 additions and 5 deletions
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6
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@@ -6249,10 +6249,6 @@ static void gfx_v8_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
{
int usepfp = (ring->type == AMDGPU_RING_TYPE_GFX);
/* GFX8 emits 128 dw nop to prevent DE do vm_flush before CE finish CEIB */
if (usepfp)
amdgpu_ring_insert_nop(ring, 128);
amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(usepfp) |
WRITE_DATA_DST_SEL(0)) |
@@ -6381,7 +6377,7 @@ static unsigned gfx_v8_0_ring_get_dma_frame_size_gfx(struct amdgpu_ring *ring)
5 + /* gfx_v8_0_ring_emit_hdp_invalidate */
6 + 6 + 6 +/* gfx_v8_0_ring_emit_fence_gfx x3 for user fence, vm fence */
7 + /* gfx_v8_0_ring_emit_pipeline_sync */
256 + 19 + /* gfx_v8_0_ring_emit_vm_flush */
128 + 19 + /* gfx_v8_0_ring_emit_vm_flush */
2 + /* gfx_v8_ring_emit_sb */
3; /* gfx_v8_ring_emit_cntxcntl */
}