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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: Erik Gilling <konkers@android.com>
[jstultz: Whitespace changes, add commit message, move to staging]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Erik Gilling 2013-02-28 16:43:23 -08:00 committed by Greg Kroah-Hartman
parent 135114a566
commit b699a644f8
2 changed files with 93 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/staging/android/sync.c
View File

@ -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;

82
drivers/staging/android/trace/sync.h Normal file
View File

@ -0,0 +1,82 @@
#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>