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drm/amdgpu: add hdp invalidation for sdma v2_4 

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 12:06:34 +08:00 committed by Alex Deucher
parent 498dd97ddb
commit 6ad550c35d
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
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@ -300,6 +300,13 @@ static void sdma_v2_4_ring_emit_hdp_flush(struct amdgpu_ring *ring)
SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
}
static void sdma_v2_4_ring_emit_hdp_invalidate(struct amdgpu_ring *ring)
{
amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
amdgpu_ring_write(ring, mmHDP_DEBUG0);
amdgpu_ring_write(ring, 1);
}
/**
* sdma_v2_4_ring_emit_fence - emit a fence on the DMA ring
*
@ -1291,6 +1298,7 @@ static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
.emit_fence = sdma_v2_4_ring_emit_fence,
.emit_vm_flush = sdma_v2_4_ring_emit_vm_flush,
.emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush,
.emit_hdp_invalidate = sdma_v2_4_ring_emit_hdp_invalidate,
.test_ring = sdma_v2_4_ring_test_ring,
.test_ib = sdma_v2_4_ring_test_ib,
.insert_nop = sdma_v2_4_ring_insert_nop,