diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-07-02 03:47:31 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-07-02 08:02:44 +0400 |
| commit | ac2874b980e05ed7a4ea8fed7b0a92428b51ce58 (patch) | |
| tree | 71c0c8e4abe395a46ca21d2bdc3493cce19719e7 /drivers/gpu/drm/drm_trace.h | |
| parent | 97e0214044d9f279a3d6286c9f859696ef0b7ebe (diff) | |
| download | linux-ac2874b980e05ed7a4ea8fed7b0a92428b51ce58.tar.xz | |
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.h | 37 |
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 000000000000..8a92683f14ec --- /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> |