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authorJesse Barnes <jbarnes@virtuousgeek.org>2010-07-01 16:47:31 -0700
committerDave Airlie <airlied@redhat.com>2010-07-02 14:02:44 +1000
commitac2874b980e05ed7a4ea8fed7b0a92428b51ce58 (patch)
tree71c0c8e4abe395a46ca21d2bdc3493cce19719e7 /drivers/gpu/drm/drm_trace.h
parent97e0214044d9f279a3d6286c9f859696ef0b7ebe (diff)
downloadop-kernel-dev-ac2874b980e05ed7a4ea8fed7b0a92428b51ce58.zip
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drm: add vblank event trace point
Emit a trace point for vblank events. This can be helpful for mapping drawing activity against the vblank frequency and period. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_trace.h')
-rw-r--r--drivers/gpu/drm/drm_trace.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_trace.h b/drivers/gpu/drm/drm_trace.h
new file mode 100644
index 0000000..8a92683
--- /dev/null
+++ b/drivers/gpu/drm/drm_trace.h
@@ -0,0 +1,37 @@
+#if !defined(_DRM_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _DRM_TRACE_H_
+
+#include <linux/stringify.h>
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM drm
+#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM)
+#define TRACE_INCLUDE_FILE drm_trace
+
+TRACE_EVENT(drm_vblank_event,
+
+ TP_PROTO(int crtc, unsigned int seq),
+
+ TP_ARGS(crtc, seq),
+
+ TP_STRUCT__entry(
+ __field(int, crtc)
+ __field(unsigned int, seq)
+ ),
+
+ TP_fast_assign(
+ __entry->crtc = crtc;
+ __entry->seq = seq;
+ ),
+
+ TP_printk("crtc=%d, seq=%d", __entry->crtc, __entry->seq)
+);
+
+#endif /* _DRM_TRACE_H_ */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#include <trace/define_trace.h>
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