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Commit 6ad550c3 authored by Chunming Zhou's avatar Chunming Zhou Committed by Alex Deucher
Browse files

drm/amdgpu: add hdp invalidation for sdma v2_4 



Signed-off-by: default avatarChunming Zhou <David1.Zhou@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 498dd97d

drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c

+8 −0
Original line number Diff line number Diff line
@@ -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,