From: Dan Williams <dan.j.williams@intel.com>
To: Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Liang Kan <kan.liang@linux.intel.com>,
<linux-cxl@vger.kernel.org>, <peterz@infradead.org>
Cc: <mingo@redhat.com>, <acme@kernel.org>, <mark.rutland@arm.com>,
<will@kernel.org>, <dan.j.williams@intel.com>,
<linuxarm@huawei.com>, <linux-perf-users@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
"Davidlohr Bueso" <dave@stgolabs.net>,
Dave Jiang <dave.jiang@intel.com>
Subject: RE: [PATCH v4 2/5] perf: Allow a PMU to have a parent
Date: Mon, 3 Apr 2023 21:03:28 -0700 [thread overview]
Message-ID: <642ba19065e_29cc294f8@dwillia2-xfh.jf.intel.com.notmuch> (raw)
In-Reply-To: <20230330164556.31533-3-Jonathan.Cameron@huawei.com>
Jonathan Cameron wrote:
> Some PMUs have well defined parents such as PCI devices.
> As the device_initialize() and device_add() are all within
> pmu_dev_alloc() which is called from perf_pmu_register()
> there is no opportunity to set the parent from within a driver.
>
> Add a struct device *parent field to struct pmu and use that
> to set the parent.
>
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> ---
> v4: No change
> Note that this may first merge as part of a larger series I
> plan to post next week that adds parents for many of the of the
> other struct pmu instances. If so please drop this patch whilst
> applying.
Feel free to add my:
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
...whereever this gets applied, and yes it makes sense especially as
more device attached PMUs are showing up.
next prev parent reply other threads:[~2023-04-04 4:03 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-30 16:45 [PATCH v4 0/5] CXL 3.0 Performance Monitoring Unit support Jonathan Cameron
2023-03-30 16:45 ` [PATCH v4 1/5] cxl: Add function to count regblocks of a given type Jonathan Cameron
2023-04-04 3:59 ` Dan Williams
2023-03-30 16:45 ` [PATCH v4 2/5] perf: Allow a PMU to have a parent Jonathan Cameron
2023-04-04 4:03 ` Dan Williams [this message]
2023-03-30 16:45 ` [PATCH v4 3/5] cxl/pci: Find and register CXL PMU devices Jonathan Cameron
2023-04-04 19:17 ` Dan Williams
2023-04-05 10:48 ` Jonathan Cameron
2023-03-30 16:45 ` [PATCH v4 4/5] cxl: CXL Performance Monitoring Unit driver Jonathan Cameron
2023-04-03 17:32 ` Liang, Kan
2023-04-04 16:48 ` Jonathan Cameron
2023-04-04 21:53 ` Dan Williams
2023-04-05 16:08 ` Jonathan Cameron
2023-04-05 19:26 ` Dan Williams
2023-03-30 16:45 ` [PATCH v4 5/5] docs: perf: Minimal introduction the the CXL PMU device and driver Jonathan Cameron
2023-04-03 17:45 ` Liang, Kan
2023-04-04 16:55 ` Jonathan Cameron
2023-04-04 22:24 ` Dan Williams
2023-04-06 16:33 ` Jonathan Cameron
2023-04-04 3:55 ` [PATCH v4 0/5] CXL 3.0 Performance Monitoring Unit support Dan Williams
2023-04-11 13:21 ` Jonathan Cameron
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