drm/amdgpu: add VM CS mapping trace point

Output all VM mappings a command submission uses.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -111,7 +111,7 @@ TRACE_EVENT(amdgpu_vm_bo_unmap,
 		      __entry->offset, __entry->flags)
 );
 
-TRACE_EVENT(amdgpu_vm_bo_update,
+DECLARE_EVENT_CLASS(amdgpu_vm_mapping,
 	    TP_PROTO(struct amdgpu_bo_va_mapping *mapping),
 	    TP_ARGS(mapping),
 	    TP_STRUCT__entry(
@@ -129,6 +129,16 @@ TRACE_EVENT(amdgpu_vm_bo_update,
 		      __entry->soffset, __entry->eoffset, __entry->flags)
 );
 
+DEFINE_EVENT(amdgpu_vm_mapping, amdgpu_vm_bo_update,
+	    TP_PROTO(struct amdgpu_bo_va_mapping *mapping),
+	    TP_ARGS(mapping)
+);
+
+DEFINE_EVENT(amdgpu_vm_mapping, amdgpu_vm_bo_mapping,
+	    TP_PROTO(struct amdgpu_bo_va_mapping *mapping),
+	    TP_ARGS(mapping)
+);
+
 TRACE_EVENT(amdgpu_vm_set_page,
 	    TP_PROTO(uint64_t pe, uint64_t addr, unsigned count,
 		     uint32_t incr, uint32_t flags),

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

@@ -852,6 +852,14 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
 			return r;
 	}
 
+	if (trace_amdgpu_vm_bo_mapping_enabled()) {
+		list_for_each_entry(mapping, &bo_va->valids, list)
+			trace_amdgpu_vm_bo_mapping(mapping);
+
+		list_for_each_entry(mapping, &bo_va->invalids, list)
+			trace_amdgpu_vm_bo_mapping(mapping);
+	}
+
 	spin_lock(&vm->status_lock);
 	list_splice_init(&bo_va->invalids, &bo_va->valids);
 	list_del_init(&bo_va->vm_status);