[PATCH 08/21] drm/amdgpu: add PASID mapping for CIK SDMA

Christian König ckoenig.leichtzumerken at gmail.com
Wed Jan 10 12:54:11 UTC 2018


This way we can see the PASID in VM faults.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/cik_sdma.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index 985a6868b0a8..1d4787b78779 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -894,6 +894,10 @@ static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
 	}
 	amdgpu_ring_write(ring, pd_addr >> 12);
 
+	amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+	amdgpu_ring_write(ring, (mmIH_VMID_0_LUT + vmid));
+	amdgpu_ring_write(ring, pasid);
+
 	/* flush TLB */
 	amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
 	amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST);
@@ -1282,7 +1286,7 @@ static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
 		6 + /* cik_sdma_ring_emit_hdp_flush */
 		3 + /* cik_sdma_ring_emit_hdp_invalidate */
 		6 + /* cik_sdma_ring_emit_pipeline_sync */
-		12 + /* cik_sdma_ring_emit_vm_flush */
+		15 + /* cik_sdma_ring_emit_vm_flush */
 		9 + 9 + 9, /* cik_sdma_ring_emit_fence x3 for user fence, vm fence */
 	.emit_ib_size = 7 + 4, /* cik_sdma_ring_emit_ib */
 	.emit_ib = cik_sdma_ring_emit_ib,
-- 
2.14.1



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