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Date: Thu, 28 Feb 2013 16:43:23 -0800
From: John Stultz <john.stultz@...aro.org>
To: lkml <linux-kernel@...r.kernel.org>
Cc: Erik Gilling <konkers@...roid.com>,
Maarten Lankhorst <maarten.lankhorst@...onical.com>,
Daniel Vetter <daniel.vetter@...ll.ch>,
Rob Clark <robclark@...il.com>,
Sumit Semwal <sumit.semwal@...aro.org>,
Greg KH <gregkh@...uxfoundation.org>,
dri-devel@...ts.freedesktop.org,
Android Kernel Team <kernel-team@...roid.com>,
John Stultz <john.stultz@...aro.org>
Subject: [PATCH 27/30] staging: sync: Add tracepoint support
From: Erik Gilling <konkers@...roid.com>
Add support for tracepoints
Cc: Maarten Lankhorst <maarten.lankhorst@...onical.com>
Cc: Erik Gilling <konkers@...roid.com>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: Rob Clark <robclark@...il.com>
Cc: Sumit Semwal <sumit.semwal@...aro.org>
Cc: Greg KH <gregkh@...uxfoundation.org>
Cc: dri-devel@...ts.freedesktop.org
Cc: Android Kernel Team <kernel-team@...roid.com>
Signed-off-by: Erik Gilling <konkers@...roid.com>
[jstultz: Whitespace changes, add commit message, move to staging]
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
drivers/staging/android/sync.c | 11 +++++
drivers/staging/android/trace/sync.h | 82 ++++++++++++++++++++++++++++++++++
2 files changed, 93 insertions(+)
create mode 100644 drivers/staging/android/trace/sync.h
diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index 988f233..1ddc404 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -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;
diff --git a/drivers/staging/android/trace/sync.h b/drivers/staging/android/trace/sync.h
new file mode 100644
index 0000000..9546235
--- /dev/null
+++ b/drivers/staging/android/trace/sync.h
@@ -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>
--
1.7.10.4
--
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