drm/amdgpu: trace allocated PASIDs

Trace all allocated PASIDs.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -69,6 +69,9 @@ int amdgpu_pasid_alloc(unsigned int bits)
 			break;
 	}
 
+	if (pasid >= 0)
+		trace_amdgpu_pasid_allocated(pasid);
+
 	return pasid;
 }
 
@@ -78,6 +81,7 @@ int amdgpu_pasid_alloc(unsigned int bits)
  */
 void amdgpu_pasid_free(unsigned int pasid)
 {
+	trace_amdgpu_pasid_freed(pasid);
 	ida_simple_remove(&amdgpu_pasid_ida, pasid);
 }
 

drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h

@@ -378,6 +378,28 @@ TRACE_EVENT(amdgpu_vm_flush,
 		      __entry->vm_hub,__entry->pd_addr)
 );
 
+DECLARE_EVENT_CLASS(amdgpu_pasid,
+	    TP_PROTO(unsigned pasid),
+	    TP_ARGS(pasid),
+	    TP_STRUCT__entry(
+			     __field(unsigned, pasid)
+			     ),
+	    TP_fast_assign(
+			   __entry->pasid = pasid;
+			   ),
+	    TP_printk("pasid=%u", __entry->pasid)
+);
+
+DEFINE_EVENT(amdgpu_pasid, amdgpu_pasid_allocated,
+	    TP_PROTO(unsigned pasid),
+	    TP_ARGS(pasid)
+);
+
+DEFINE_EVENT(amdgpu_pasid, amdgpu_pasid_freed,
+	    TP_PROTO(unsigned pasid),
+	    TP_ARGS(pasid)
+);
+
 TRACE_EVENT(amdgpu_bo_list_set,
 	    TP_PROTO(struct amdgpu_bo_list *list, struct amdgpu_bo *bo),
 	    TP_ARGS(list, bo),