[PATCH 10/20] drm/amdgpu: add PASID mapping for SDMA v4

[Christian König]

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/sdma_v4_0.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 64926191edd7..c3f34d1a7169 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -35,6 +35,7 @@
 #include "mmhub/mmhub_1_0_sh_mask.h"
 #include "hdp/hdp_4_0_offset.h"
 #include "sdma0/sdma0_4_1_default.h"
+#include "oss/osssys_4_0_offset.h"
 
 #include "soc15_common.h"
 #include "soc15.h"
@@ -1136,10 +1137,12 @@ static void sdma_v4_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
 					 unsigned vmid, unsigned pasid,
 					 uint64_t pd_addr)
 {
-	struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
-	uint32_t req = ring->adev->gart.gart_funcs->get_invalidate_req(vmid);
+	struct amdgpu_device *adev = ring->adev;
+	struct amdgpu_vmhub *hub = &adev->vmhub[ring->funcs->vmhub];
+	uint32_t req = adev->gart.gart_funcs->get_invalidate_req(vmid);
 	uint64_t flags = AMDGPU_PTE_VALID;
 	unsigned eng = ring->vm_inv_eng;
+	uint32_t reg;
 
 	amdgpu_gart_get_vm_pde(ring->adev, -1, &pd_addr, &flags);
 	pd_addr |= flags;
@@ -1154,6 +1157,12 @@ static void sdma_v4_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
 	amdgpu_ring_write(ring, hub->ctx0_ptb_addr_hi32 + vmid * 2);
 	amdgpu_ring_write(ring, upper_32_bits(pd_addr));
 
+	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
+			  SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
+	reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid;
+	amdgpu_ring_write(ring, reg);
+	amdgpu_ring_write(ring, pasid);
+
 	/* flush TLB */
 	amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
 			  SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
-- 
2.14.1