Commit b699a644 authored by Erik Gilling's avatar Erik Gilling Committed by Greg Kroah-Hartman
Browse files

staging: sync: Add tracepoint support 



Add support for tracepoints

Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <robclark@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: dri-devel@lists.freedesktop.org
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: default avatarErik Gilling <konkers@android.com>
[jstultz: Whitespace changes, add commit message, move to staging]
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 135114a5

drivers/staging/android/sync.c

+11 −0
Original line number Diff line number Diff line
@@ -28,6 +28,9 @@ 


#include "sync.h"



#define CREATE_TRACE_POINTS

#include "trace/sync.h"



static void sync_fence_signal_pt(struct sync_pt *pt);

static int _sync_pt_has_signaled(struct sync_pt *pt);

static void sync_fence_free(struct kref *kref);
@@ -134,6 +137,8 @@ void sync_timeline_signal(struct sync_timeline *obj) 
	LIST_HEAD(signaled_pts);

	struct list_head *pos, *n;



	trace_sync_timeline(obj);



	spin_lock_irqsave(&obj->active_list_lock, flags);



	list_for_each_safe(pos, n, &obj->active_list_head) {
@@ -581,6 +586,11 @@ static bool sync_fence_check(struct sync_fence *fence) 
int sync_fence_wait(struct sync_fence *fence, long timeout)

{

	int err = 0;

	struct sync_pt *pt;



	trace_sync_wait(fence, 1);

	list_for_each_entry(pt, &fence->pt_list_head, pt_list)

		trace_sync_pt(pt);



	if (timeout > 0) {

		timeout = msecs_to_jiffies(timeout);
@@ -591,6 +601,7 @@ int sync_fence_wait(struct sync_fence *fence, long timeout) 
		err = wait_event_interruptible(fence->wq,

					       sync_fence_check(fence));

	}

	trace_sync_wait(fence, 0);



	if (err < 0)

		return err;

drivers/staging/android/trace/sync.h

0 → 100644
+82 −0
Original line number Diff line number Diff line 
#undef TRACE_SYSTEM

#define TRACE_INCLUDE_PATH ../../drivers/staging/android/trace

#define TRACE_SYSTEM sync



#if !defined(_TRACE_SYNC_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_SYNC_H



#include "../sync.h"

#include <linux/tracepoint.h>



TRACE_EVENT(sync_timeline,

	TP_PROTO(struct sync_timeline *timeline),



	TP_ARGS(timeline),



	TP_STRUCT__entry(

			__string(name, timeline->name)

			__array(char, value, 32)

	),



	TP_fast_assign(

			__assign_str(name, timeline->name);

			if (timeline->ops->timeline_value_str) {

				timeline->ops->timeline_value_str(timeline,

							__entry->value,

							sizeof(__entry->value));

			} else {

				__entry->value[0] = '\0';

			}

	),



	TP_printk("name=%s value=%s", __get_str(name), __entry->value)

);



TRACE_EVENT(sync_wait,

	TP_PROTO(struct sync_fence *fence, int begin),



	TP_ARGS(fence, begin),



	TP_STRUCT__entry(

			__string(name, fence->name)

			__field(s32, status)

			__field(u32, begin)

	),



	TP_fast_assign(

			__assign_str(name, fence->name);

			__entry->status = fence->status;

			__entry->begin = begin;

	),



	TP_printk("%s name=%s state=%d", __entry->begin ? "begin" : "end",

			__get_str(name), __entry->status)

);



TRACE_EVENT(sync_pt,

	TP_PROTO(struct sync_pt *pt),



	TP_ARGS(pt),



	TP_STRUCT__entry(

		__string(timeline, pt->parent->name)

		__array(char, value, 32)

	),



	TP_fast_assign(

		__assign_str(timeline, pt->parent->name);

		if (pt->parent->ops->pt_value_str) {

			pt->parent->ops->pt_value_str(pt, __entry->value,

							sizeof(__entry->value));

		} else {

			__entry->value[0] = '\0';

		}

	),



	TP_printk("name=%s value=%s", __get_str(timeline), __entry->value)

);



#endif /* if !defined(_TRACE_SYNC_H) || defined(TRACE_HEADER_MULTI_READ) */



/* This part must be outside protection */

#include <trace/define_trace.h>

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