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>
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97e0214044
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ac2874b980
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@ -11,7 +11,8 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \
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drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
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drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
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drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
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drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
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drm_crtc.o drm_modes.o drm_edid.o \
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drm_crtc.o drm_modes.o drm_edid.o \
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drm_info.o drm_debugfs.o drm_encoder_slave.o
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drm_info.o drm_debugfs.o drm_encoder_slave.o \
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drm_trace_points.o
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drm-$(CONFIG_COMPAT) += drm_ioc32.o
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drm-$(CONFIG_COMPAT) += drm_ioc32.o
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@ -19,6 +20,8 @@ drm_kms_helper-y := drm_fb_helper.o drm_crtc_helper.o drm_dp_i2c_helper.o
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obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
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obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
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CFLAGS_drm_trace_points.o := -I$(src)
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obj-$(CONFIG_DRM) += drm.o
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obj-$(CONFIG_DRM) += drm.o
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obj-$(CONFIG_DRM_TTM) += ttm/
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obj-$(CONFIG_DRM_TTM) += ttm/
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obj-$(CONFIG_DRM_TDFX) += tdfx/
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obj-$(CONFIG_DRM_TDFX) += tdfx/
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@ -34,6 +34,7 @@
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*/
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*/
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#include "drmP.h"
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#include "drmP.h"
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#include "drm_trace.h"
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#include <linux/interrupt.h> /* For task queue support */
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#include <linux/interrupt.h> /* For task queue support */
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#include <linux/slab.h>
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#include <linux/slab.h>
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@ -754,6 +755,8 @@ void drm_handle_vblank_events(struct drm_device *dev, int crtc)
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}
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}
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spin_unlock_irqrestore(&dev->event_lock, flags);
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spin_unlock_irqrestore(&dev->event_lock, flags);
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trace_drm_vblank_event(crtc, seq);
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}
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}
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/**
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/**
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@ -0,0 +1,37 @@
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#if !defined(_DRM_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
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#define _DRM_TRACE_H_
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#include <linux/stringify.h>
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM drm
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#define TRACE_SYSTEM_STRING __stringify(TRACE_SYSTEM)
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#define TRACE_INCLUDE_FILE drm_trace
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TRACE_EVENT(drm_vblank_event,
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TP_PROTO(int crtc, unsigned int seq),
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TP_ARGS(crtc, seq),
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TP_STRUCT__entry(
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__field(int, crtc)
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__field(unsigned int, seq)
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),
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TP_fast_assign(
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__entry->crtc = crtc;
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__entry->seq = seq;
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),
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TP_printk("crtc=%d, seq=%d", __entry->crtc, __entry->seq)
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);
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#endif /* _DRM_TRACE_H_ */
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/* This part must be outside protection */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#include <trace/define_trace.h>
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@ -0,0 +1,4 @@
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#include "drmP.h"
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#define CREATE_TRACE_POINTS
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#include "drm_trace.h"
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