From: Andi Kleen <ak@linux.intel.com>
To: roman.sudarikov@linux.intel.com
Cc: gregkh@linux-foundation.org, roman.sudarikov@linux.intel.com,
peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
mark.rutland@arm.com, alexander.shishkin@linux.intel.com,
jolsa@redhat.com, namhyung@kernel.org,
linux-kernel@vger.kernel.org, eranian@google.com,
bgregg@netflix.com, kan.liang@linux.intel.com,
alexander.antonov@intel.com
Subject: Re: [PATCH v4 2/2] perf x86: Exposing an Uncore unit to PMON for Intel Xeon® server platform
Date: Fri, 17 Jan 2020 11:12:20 -0800 [thread overview]
Message-ID: <20200117191220.GN302770@tassilo.jf.intel.com> (raw)
In-Reply-To: <20200117184249.GB1969121@kroah.com>
> > pmon0-3: list of pci busses indexed by die
> >
> > To be honest the approach doesn't seem unreasonable to me. It's similar
> > e.g. how we express lists of cpus or nodes in sysfs today.
<snipped repeated form letter non answer to question>
Roman,
I suppose you'll need something like
/sys/device/system/dieXXX/pci-pmon<0-3>/bus
and bus could be a symlink to the pci bus directory.
The whole thing will be ugly and complicated and slow and difficult
to parse, but it will presumably follow Greg's rules.
-Andi
next prev parent reply other threads:[~2020-01-17 19:12 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-17 13:37 [PATCH v4 0/2] perf x86: Exposing IO stack to IO PMON mapping through sysfs roman.sudarikov
2020-01-17 13:37 ` [PATCH v4 1/2] perf x86: Infrastructure for exposing an Uncore unit to PMON mapping roman.sudarikov
2020-01-17 14:16 ` Greg KH
2020-01-17 13:37 ` [PATCH v4 2/2] perf x86: Exposing an Uncore unit to PMON for Intel Xeon® server platform roman.sudarikov
2020-01-17 14:19 ` Greg KH
2020-01-17 16:23 ` Andi Kleen
2020-01-17 16:54 ` Greg KH
2020-01-17 17:27 ` Andi Kleen
2020-01-17 18:42 ` Greg KH
2020-01-17 19:12 ` Andi Kleen [this message]
2020-01-17 23:03 ` Greg KH
2020-01-17 23:21 ` Andi Kleen
2020-01-21 16:15 ` Sudarikov, Roman
2020-01-21 17:15 ` Greg KH
2020-01-28 14:55 ` Sudarikov, Roman
2020-01-28 20:19 ` Liang, Kan
2020-01-17 14:14 ` [PATCH v4 0/2] perf x86: Exposing IO stack to IO PMON mapping through sysfs Greg KH
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