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-rw-r--r--include/trace/events/swiotlb.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/include/trace/events/swiotlb.h b/include/trace/events/swiotlb.h
new file mode 100644
index 0000000000..da05c9ebd2
--- /dev/null
+++ b/include/trace/events/swiotlb.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#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),
+ TP_ARGS(dev, dev_addr, size),
+
+ TP_STRUCT__entry(
+ __string(dev_name, dev_name(dev))
+ __field(u64, dma_mask)
+ __field(dma_addr_t, dev_addr)
+ __field(size_t, size)
+ __field(bool, 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->force = is_swiotlb_force_bounce(dev);
+ ),
+
+ 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->force ? "FORCE" : "NORMAL")
+);
+
+#endif /* _TRACE_SWIOTLB_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>