diff options
| author |   Ming Lei <ming.lei@canonical.com> | 2011-09-27 22:53:27 +0200 |
|---|---|---|
| committer |   Rafael J. Wysocki <rjw@sisk.pl> | 2011-09-27 22:53:27 +0200 |
| commit | 53b615ccca567ada1931eb04ad0614ac150c14a3 (patch) | |
| tree | f09512d0dabaeff71b9ee66c26ca02cae2947873 /kernel/trace | |
| parent | PM / Runtime: Don't run callbacks under lock for power.irq_safe set (diff) | |
| download | linux-dev-53b615ccca567ada1931eb04ad0614ac150c14a3.tar.xz linux-dev-53b615ccca567ada1931eb04ad0614ac150c14a3.zip | |
PM / Runtime: Introduce trace points for tracing rpm_* functions
This patch introduces 3 trace points to prepare for tracing
rpm_idle/rpm_suspend/rpm_resume functions, so we can use these
trace points to replace the current dev_dbg().
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/Makefile | 1 | ||||
| -rw-r--r-- | kernel/trace/rpm-traces.c | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile index 761c510a06c5..56bdab5b3793 100644 --- a/kernel/trace/Makefile +++ b/kernel/trace/Makefile @@ -53,6 +53,7 @@ endif obj-$(CONFIG_EVENT_TRACING) += trace_events_filter.o obj-$(CONFIG_KPROBE_EVENT) += trace_kprobe.o obj-$(CONFIG_TRACEPOINTS) += power-traces.o +obj-$(CONFIG_TRACEPOINTS) += rpm-traces.o ifeq ($(CONFIG_TRACING),y) obj-$(CONFIG_KGDB_KDB) += trace_kdb.o endif diff --git a/kernel/trace/rpm-traces.c b/kernel/trace/rpm-traces.c new file mode 100644 index 000000000000..4b3b5eaf94d1 --- /dev/null +++ b/kernel/trace/rpm-traces.c @@ -0,0 +1,20 @@ +/* + * Power trace points + * + * Copyright (C) 2009 Ming Lei <ming.lei@canonical.com> + */ + +#include <linux/string.h> +#include <linux/types.h> +#include <linux/workqueue.h> +#include <linux/sched.h> +#include <linux/module.h> +#include <linux/usb.h> + +#define CREATE_TRACE_POINTS +#include <trace/events/rpm.h> + +EXPORT_TRACEPOINT_SYMBOL_GPL(rpm_return_int); +EXPORT_TRACEPOINT_SYMBOL_GPL(rpm_idle); +EXPORT_TRACEPOINT_SYMBOL_GPL(rpm_suspend); +EXPORT_TRACEPOINT_SYMBOL_GPL(rpm_resume); |