From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Yicong Yang <yangyicong@huawei.com>
Cc: <will@kernel.org>, <mark.rutland@arm.com>,
<linux-arm-kernel@lists.infradead.org>,
<yangyicong@hisilicon.com>, <hejunhao3@huawei.com>,
<linuxarm@huawei.com>, <wangyushan12@huawei.com>,
<prime.zeng@hisilicon.com>
Subject: Re: [PATCH 6/8] drivers/perf: hisi: Export associated CPUs of each PMU through sysfs
Date: Fri, 18 Oct 2024 14:19:54 +0100 [thread overview]
Message-ID: <20241018141954.00001452@Huawei.com> (raw)
In-Reply-To: <20241018095745.57057-7-yangyicong@huawei.com>
On Fri, 18 Oct 2024 17:57:43 +0800
Yicong Yang <yangyicong@huawei.com> wrote:
> From: Yicong Yang <yangyicong@hisilicon.com>
>
> Although the event of the uncore PMU can only be opened on a single
> CPU, some PMU does have the affinity on a range of CPUs. For example
> the L3C PMU is associated to the CPUs sharing the L3T it monitors.
> Users may infer this affinity by the PMU name which may have SCCL ID
> and CCL ID encoded (for L3C etc), but it's not that straightforward.
> So export this information by adding an "associated_cpus" sysfs
> attribute then user can get this directly.
>
> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Seems sensible to expose this.
Reviewed-by: Jonathan Cameron <Joanthan.Cameron@huawei.com>
next prev parent reply other threads:[~2024-10-18 13:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-18 9:57 [PATCH 0/8] Refactor the common parts to the HiSilicon Uncore PMU core and cleanups Yicong Yang
2024-10-18 9:57 ` [PATCH 1/8] drivers/perf: hisi: Define a symbol namespace for HiSilicon Uncore PMUs Yicong Yang
2024-10-18 12:43 ` Jonathan Cameron
2024-10-21 12:39 ` Yicong Yang
2024-10-18 9:57 ` [PATCH 2/8] drivers/perf: hisi: Improve the detection of associated CPUs Yicong Yang
2024-10-18 12:48 ` Jonathan Cameron
2024-10-21 12:41 ` Yicong Yang
2024-10-18 9:57 ` [PATCH 3/8] drivers/perf: hisi: Extract topology information to a separate structure Yicong Yang
2024-10-18 12:54 ` Jonathan Cameron
2024-10-21 12:44 ` Yicong Yang
2024-10-18 9:57 ` [PATCH 4/8] drivers/perf: hisi: Add a common function to retrieve topology from firmware Yicong Yang
2024-10-18 12:58 ` Jonathan Cameron
2024-10-18 9:57 ` [PATCH 5/8] drivers/perf: hisi: Refactor the attributes creation Yicong Yang
2024-10-18 13:47 ` Jonathan Cameron
2024-10-21 12:54 ` Yicong Yang
2024-10-18 9:57 ` [PATCH 6/8] drivers/perf: hisi: Export associated CPUs of each PMU through sysfs Yicong Yang
2024-10-18 13:19 ` Jonathan Cameron [this message]
2024-10-18 9:57 ` [PATCH 7/8] drivers/perf: hisi: Fix incorrect variable name "hha_pmu" in DDRC PMU driver Yicong Yang
2024-10-18 13:20 ` Jonathan Cameron
2024-10-18 9:57 ` [PATCH 8/8] drivers/perf: hisi: Delete redundant blank line of DDRC PMU Yicong Yang
2024-10-18 13:21 ` Jonathan Cameron
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