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From: Jing Zhang <renyu.zj@linux.alibaba.com>
To: Will Deacon <will@kernel.org>, Namhyung Kim <namhyung@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	Jonathan Corbet <corbet@lwn.net>,
	John Garry <john.g.garry@oracle.com>,
	Shuai Xue <xueshuai@linux.alibaba.com>,
	Ian Rogers <irogers@google.com>,
	Robin Murphy <robin.murphy@arm.com>,
	James Clark <james.clark@arm.com>,
	Mike Leach <mike.leach@linaro.org>, Leo Yan <leo.yan@linaro.org>,
	Ilkka Koskinen <ilkka@os.amperecomputing.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org, linux-doc@vger.kernel.org,
	Zhuo Song <zhuo.song@linux.alibaba.com>
Subject: Re: [PATCH v4 0/4] Add JSON metrics for Yitian710 DDR
Date: Tue, 27 Jun 2023 15:19:48 +0800	[thread overview]
Message-ID: <e125258f-559e-ae0a-8eb3-f119b0e7c87c@linux.alibaba.com> (raw)
In-Reply-To: <20230626124431.GB20045@willie-the-truck>



在 2023/6/26 下午8:44, Will Deacon 写道:
> On Tue, Jun 20, 2023 at 10:00:46PM -0700, Namhyung Kim wrote:
>> On Tue, Jun 20, 2023 at 8:08 PM Jing Zhang <renyu.zj@linux.alibaba.com> wrote:
>>> 在 2023/6/21 上午3:04, Namhyung Kim 写道:
>>>> I'm curious why the first patch is needed, presumably the PMU
>>>> should have 'ali_drw' in the name already.  Do we use substring
>>>> match for the compat name in the JSON metric?
>>>>
>>>
>>> The main purpose of patch 1 is to add an identifier so that the Compat
>>> field can match the corresponding event when defining aliases or metrics
>>> for events.
>>>
>>> For example, "Unit" can match "ali_drw" in the name and different SoCs may
>>> be able to match ali_drw, but they may have different events, and even if
>>> the events are the same, the meanings may be different. Therefore, the
>>> Compat field is needed to match the Identifier to confirm which type and
>>> revision of PMU the current SoC has. Therefore, both "Unit" and "Compat"
>>> need to be matched at the same time. Although it seems that ali_drw is
>>> redundantly matched currently, it is meaningful for future expansion.
>>
>> I see, thanks for the explanation.
>>
>> I think you need to route the kernel patch differently.  I can apply the tools
>> part once the kernel patch gets Acks from others.
> 
> Sorry, I missed this initially as I didn't realise there were kernel changes
> hidden in this series (I saw "JSON" and ignored it...). Given that the 6.5
> merge window is now open, I'll pick the kernel change up for 6.6 when I
> start queueing patches in a few weeks.
> 
> Will

Thank you will, maybe it is because I did not describe this series well, and
it is easy to cause the patch to be ignored. I will pay attention to this
problem in the future.

Thanks,
Jing

  reply	other threads:[~2023-06-27  7:22 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-20  7:12 [PATCH v4 0/4] Add JSON metrics for Yitian710 DDR Jing Zhang
2023-06-20  7:12 ` [PATCH v4 1/4] driver/perf: Add identifier sysfs file for Yitian 710 DDR Jing Zhang
2023-06-20  7:12 ` [PATCH v4 2/4] perf jevents: Add support for Yitian 710 DDR PMU aliasing Jing Zhang
2023-06-20  7:12 ` [PATCH v4 3/4] perf vendor events: Add JSON metrics for Yitian 710 DDR Jing Zhang
2023-06-20  7:12 ` [PATCH v4 4/4] docs: perf: Update metric usage for Alibaba's T-Head PMU driver Jing Zhang
2023-06-20  7:30   ` John Garry
2023-06-20 19:04 ` [PATCH v4 0/4] Add JSON metrics for Yitian710 DDR Namhyung Kim
2023-06-21  3:08   ` Jing Zhang
2023-06-21  5:00     ` Namhyung Kim
2023-06-25  8:58       ` Jing Zhang
2023-06-26 12:44       ` Will Deacon
2023-06-27  7:19         ` Jing Zhang [this message]
2023-07-27 12:22 ` Will Deacon

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