trace: Add an option for boot clock as trace clock
Unlike monotonic clock, boot clock as a trace clock will account for time spent in suspend useful for tracing suspend/resume. This uses earlier introduced infrastructure for using the fast boot clock. Signed-off-by: Joel Fernandes <joelaf@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Richard Cochran <richardcochran@gmail.com> Link: http://lkml.kernel.org/r/1480372524-15181-7-git-send-email-john.stultz@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -1125,6 +1125,7 @@ static struct {
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{ trace_clock, "perf", 1 },
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{ ktime_get_mono_fast_ns, "mono", 1 },
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{ ktime_get_raw_fast_ns, "mono_raw", 1 },
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{ ktime_get_boot_fast_ns, "boot", 1 },
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ARCH_TRACE_CLOCKS
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};
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