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From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Will Deacon <will@kernel.org>
Cc: Qi Liu <liuqi115@huawei.com>, <mark.rutland@arm.com>,
	<bhelgaas@google.com>, <linux-pci@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <linuxarm@huawei.com>,
	<zhangshaokun@hisilicon.com>
Subject: Re: [PATCH v6 2/2] drivers/perf: hisi: Add driver for HiSilicon PCIe PMU
Date: Mon, 14 Jun 2021 10:20:25 +0100	[thread overview]
Message-ID: <20210614102025.0000222b@Huawei.com> (raw)
In-Reply-To: <20210611162347.GA16284@willie-the-truck>

On Fri, 11 Jun 2021 17:23:48 +0100
Will Deacon <will@kernel.org> wrote:

> On Mon, May 31, 2021 at 09:32:31PM +0800, Qi Liu wrote:
> > PCIe PMU Root Complex Integrated End Point(RCiEP) device is supported
> > to sample bandwidth, latency, buffer occupation etc.
> > 
> > Each PMU RCiEP device monitors multiple Root Ports, and each RCiEP is
> > registered as a PMU in /sys/bus/event_source/devices, so users can
> > select target PMU, and use filter to do further sets.
> > 
> > Filtering options contains:
> > event        - select the event.
> > subevent     - select the subevent.
> > port         - select target Root Ports. Information of Root Ports
> >                are shown under sysfs.
> > bdf          - select requester_id of target EP device.
> > trig_len     - set trigger condition for starting event statistics.
> > trigger_mode - set trigger mode. 0 means starting to statistic when
> >                bigger than trigger condition, and 1 means smaller.
> > thr_len      - set threshold for statistics.
> > thr_mode     - set threshold mode. 0 means count when bigger than
> >                threshold, and 1 means smaller.
> > 
> > Reviewed-by: John Garry <john.garry@huawei.com>
> > Signed-off-by: Qi Liu <liuqi115@huawei.com>
> > ---
> >  MAINTAINERS                                |    6 +
> >  drivers/perf/Kconfig                       |    2 +
> >  drivers/perf/Makefile                      |    1 +
> >  drivers/perf/pci/Kconfig                   |   16 +
> >  drivers/perf/pci/Makefile                  |    2 +
> >  drivers/perf/pci/hisilicon/Makefile        |    3 +
> >  drivers/perf/pci/hisilicon/hisi_pcie_pmu.c | 1019 ++++++++++++++++++++++++++++  
> 
> Can we keep this under drivers/perf/hisilicon/ please? I don't see the
> need to create a 'pci' directory here.

https://lore.kernel.org/linux-pci/20190103154439.GC16311@edgewater-inn.cambridge.arm.com/

Discussion back in 2018 about where to put these...

Though, perf/pci/hisilicon does seem over the top in terms of depth, maybe perf/pci/
or just give up on that plan and put them (for now at least) in per company directories.

Jonathan

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  reply	other threads:[~2021-06-14  9:22 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-31 13:32 [PATCH v6 0/2] drivers/perf: hisi: Add support for " Qi Liu
2021-05-31 13:32 ` [PATCH v6 1/2] docs: perf: Add description for HiSilicon PCIe PMU driver Qi Liu
2021-05-31 13:32 ` [PATCH v6 2/2] drivers/perf: hisi: Add driver for HiSilicon PCIe PMU Qi Liu
2021-06-11 16:23   ` Will Deacon
2021-06-14  9:20     ` Jonathan Cameron [this message]
2021-06-15  9:26       ` Will Deacon
2021-06-15  8:57     ` liuqi (BA)
2021-06-15  9:35       ` Will Deacon
2021-06-16  1:54         ` liuqi (BA)
2021-06-16 13:42           ` Will Deacon
2021-06-17 11:00             ` liuqi (BA)
2021-06-17 17:57               ` Will Deacon
2021-06-18  9:32                 ` liuqi (BA)
2021-06-21 17:59                   ` Will Deacon
2021-06-23  9:59                     ` liuqi (BA)
2021-06-11 23:33   ` Krzysztof Wilczyński
2021-06-16  1:09     ` liuqi (BA)
2021-06-16 15:23       ` Bjorn Helgaas
2021-06-16 17:27         ` Will Deacon
2021-06-16 14:14     ` Bjorn Helgaas
2021-06-11 10:04 ` [PATCH v6 0/2] drivers/perf: hisi: Add support for " liuqi (BA)

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