From: Adrian Hunter <adrian.hunter@intel.com>
To: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
linux-kernel@vger.kernel.org,
Frederic Weisbecker <fweisbec@gmail.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@gmail.com>,
Paul Mackerras <paulus@samba.org>,
Stephane Eranian <eranian@google.com>,
John Stultz <john.stultz@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Pawel Moll <pawel.moll@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Andi Kleen <ak@linux.intel.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>
Subject: Re: [PATCH V2 1/2] perf: Sample additional clock value
Date: Mon, 23 Feb 2015 09:29:35 +0200 [thread overview]
Message-ID: <54EAD6DF.1000709@intel.com> (raw)
In-Reply-To: <54E769A4.2090502@gmail.com>
On 20/02/15 19:06, David Ahern wrote:
> On 2/20/15 5:44 AM, Adrian Hunter wrote:
>> diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
>> index efe2d2d..9385140 100644
>> --- a/include/linux/perf_event.h
>> +++ b/include/linux/perf_event.h
>> @@ -655,7 +655,7 @@ extern void perf_pmu_migrate_context(struct pmu *pmu,
>> int src_cpu, int dst_cpu);
>> extern u64 perf_event_read_value(struct perf_event *event,
>> u64 *enabled, u64 *running);
>> -
>> +u64 perf_sample_clock_pt(void);
>
> Core functions should not be arch specific. PT == x86.
Actually it was one of the ARM guys that asked for it to be called
"Processor Trace". It was "arch" in V1.
http://marc.info/?l=linux-kernel&m=142436891806015
But it has been superseded completely by patches from Peter, so it
is not going further anyway.
next prev parent reply other threads:[~2015-02-23 7:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-20 12:44 [PATCH V2 0/2] perf/x86: Add ability to sample TSC Adrian Hunter
2015-02-20 12:44 ` [PATCH V2 1/2] perf: Sample additional clock value Adrian Hunter
2015-02-20 17:06 ` David Ahern
2015-02-23 7:29 ` Adrian Hunter [this message]
2015-02-20 12:44 ` [PATCH V2 2/2] perf/x86: Provide TSC for PERF_SAMPLE_CLOCK_PT Adrian Hunter
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