1 files changed, 46 insertions, 0 deletions

diff --git a/include/trace/events/swiotlb.h b/include/trace/events/swiotlb.h
new file mode 100644
index 000000000000..7ea4c5e7c448
--- /dev/null
+++ b/include/trace/events/swiotlb.h
@@ -0,0 +1,46 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM swiotlb
+
+#if !defined(_TRACE_SWIOTLB_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SWIOTLB_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(swiotlb_bounced,
+
+        TP_PROTO(struct device *dev,
+                 dma_addr_t dev_addr,
+                 size_t size,
+                 int swiotlb_force),
+
+        TP_ARGS(dev, dev_addr, size, swiotlb_force),
+
+        TP_STRUCT__entry(
+                __string(       dev_name,       dev_name(dev)   )
+                __field(        u64,    dma_mask                )
+                __field(        dma_addr_t,     dev_addr        )
+                __field(        size_t, size                    )
+                __field(        int,    swiotlb_force           )
+        ),
+
+        TP_fast_assign(
+                __assign_str(dev_name, dev_name(dev));
+                __entry->dma_mask = (dev->dma_mask ? *dev->dma_mask : 0);
+                __entry->dev_addr = dev_addr;
+                __entry->size = size;
+                __entry->swiotlb_force = swiotlb_force;
+        ),
+
+        TP_printk("dev_name: %s dma_mask=%llx dev_addr=%llx "
+                "size=%zu %s",
+                __get_str(dev_name),
+                __entry->dma_mask,
+                (unsigned long long)__entry->dev_addr,
+                __entry->size,
+                __entry->swiotlb_force ? "swiotlb_force" : "" )
+);
+
+#endif /*  _TRACE_SWIOTLB_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>