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drm/amdgpu: add hdp invalidation for cik sdma 

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-03-03 12:05:44 +08:00 committed by Alex Deucher
parent d35db5617a
commit 498dd97ddb
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/cik_sdma.c
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@ -261,6 +261,13 @@ static void cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring)
amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
}
static void cik_sdma_ring_emit_hdp_invalidate(struct amdgpu_ring *ring)
{
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
amdgpu_ring_write(ring, mmHDP_DEBUG0);
amdgpu_ring_write(ring, 1);
}
/**
* cik_sdma_ring_emit_fence - emit a fence on the DMA ring
*
@ -1286,6 +1293,7 @@ static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
.emit_fence = cik_sdma_ring_emit_fence,
.emit_vm_flush = cik_sdma_ring_emit_vm_flush,
.emit_hdp_flush = cik_sdma_ring_emit_hdp_flush,
.emit_hdp_invalidate = cik_sdma_ring_emit_hdp_invalidate,
.test_ring = cik_sdma_ring_test_ring,
.test_ib = cik_sdma_ring_test_ib,
.insert_nop = cik_sdma_ring_insert_nop,