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
next prev parent 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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