linux-kernel - Re: [PATCH v3 2/3] drivers/perf: hisi: Add support for HiSilicon UC PMU driver

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Date:   Fri, 9 Jun 2023 14:17:47 +0800
From:   hejunhao <hejunhao3@...wei.com>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>
CC:     <will@...nel.org>, <linux-kernel@...r.kernel.org>,
        <mark.rutland@....com>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-doc@...r.kernel.org>, <linuxarm@...wei.com>,
        <yangyicong@...wei.com>, <shenyang39@...wei.com>,
        <prime.zeng@...ilicon.com>
Subject: Re: [PATCH v3 2/3] drivers/perf: hisi: Add support for HiSilicon UC
 PMU driver

Hi, Jonathan


On 2023/6/8 21:22, Jonathan Cameron wrote:
> On Thu, 8 Jun 2023 19:37:18 +0800
> Junhao He <hejunhao3@...wei.com> wrote:
>
>
>> On HiSilicon Hip09 platform, there is 4 UC (unified cache) module
> are 4 UC (unified cache) modules

Ok, will fix it.
Thanks.

>> on each chip CCL (CPU Cluster). UC is a cache that provides
>> coherence between NUMA and UMA domains. It is located between L2
>> and Memory System. And many PMU events are supported. Let's support
> Many PMU events are supported.

Ok, will fix it.
Thanks.

>> the UC PMU driver using the HiSilicon uncore PMU framework.
>>
>> * rd_req_en : rd_req_en is the abbreviation of read request tracetag
>> enable and allows user to count only read operations. Details are listed
>> in the hisi-pmu document at Documentation/admin-guide/perf/hisi-pmu.rst
>>
>> * srcid_en & srcid: Allows users to filter statistical information based
>> on specific CPU/ICL by srcid.
>> srcid_en depending on rd_req_en enabled.
> srcid_en depends on rd_req_en being enabled.

Ok, will fix it.
Thanks.

>> * uring_channel: Allows users to filter statistical information based on
>> the specified tx request uring channel.
>> uring_channel only supported events: [0x47 ~ 0x59].
>>
>> Signed-off-by: Junhao He <hejunhao3@...wei.com>
>> Reviewed-by: Yicong Yang <yangyicong@...ilicon.com>
> The editorial stuff above is trivial and original text can be easily
> understood. So maintainers may not care. If you happen to be re rolling
> the patch then nice to clean it up.
>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> .

Sure, Will fix in next version.
Thanks.