drm/radeon: add trace_radeon_vm_flush

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/radeon_trace.h

@@ -104,6 +104,24 @@ TRACE_EVENT(radeon_vm_set_page,
 		      __entry->flags, __entry->count)
 );
 
+TRACE_EVENT(radeon_vm_flush,
+	    TP_PROTO(uint64_t pd_addr, unsigned ring, unsigned id),
+	    TP_ARGS(pd_addr, ring, id),
+	    TP_STRUCT__entry(
+			     __field(u64, pd_addr)
+			     __field(u32, ring)
+			     __field(u32, id)
+			     ),
+
+	    TP_fast_assign(
+			   __entry->pd_addr = pd_addr;
+			   __entry->ring = ring;
+			   __entry->id = id;
+			   ),
+	    TP_printk("pd_addr=%010Lx, ring=%u, id=%u",
+		      __entry->pd_addr, __entry->ring, __entry->id)
+);
+
 DECLARE_EVENT_CLASS(radeon_fence_request,
 
 	    TP_PROTO(struct drm_device *dev, int ring, u32 seqno),

drivers/gpu/drm/radeon/radeon_vm.c

@@ -240,6 +240,7 @@ void radeon_vm_flush(struct radeon_device *rdev,
 	/* if we can't remember our last VM flush then flush now! */
 	/* XXX figure out why we have to flush all the time */
 	if (!vm->last_flush || true || pd_addr != vm->pd_gpu_addr) {
+		trace_radeon_vm_flush(pd_addr, ring, vm->id);
 		vm->pd_gpu_addr = pd_addr;
 		radeon_ring_vm_flush(rdev, ring, vm);
 	}