From: Kajol Jain <kjain@linux.ibm.com>
To: acme@kernel.org, linuxppc-dev@lists.ozlabs.org,
mpe@ellerman.id.au, sukadev@linux.vnet.ibm.com
Cc: mark.rutland@arm.com, maddy@linux.vnet.ibm.com,
peterz@infradead.org, yao.jin@linux.intel.com, mingo@kernel.org,
kan.liang@linux.intel.com, ak@linux.intel.com,
alexander.shishkin@linux.intel.com, anju@linux.vnet.ibm.com,
mamatha4@linux.vnet.ibm.com, ravi.bangoria@linux.ibm.com,
kjain@linux.ibm.com, jmario@redhat.com, namhyung@kernel.org,
tglx@linutronix.de, mpetlan@redhat.com,
gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
linux-perf-users@vger.kernel.org, jolsa@kernel.org
Subject: [PATCH v7 0/5] powerpc/hv-24x7: Expose chip/sockets info to add json file metric support for the hv_24x7 socket/chip level events
Date: Fri, 27 Mar 2020 12:06:37 +0530 [thread overview]
Message-ID: <20200327063642.26175-1-kjain@linux.ibm.com> (raw)
Patchset fixes the inconsistent results we are getting when
we run multiple 24x7 events.
"hv_24x7" pmu interface events needs system dependent parameter
like socket/chip/core. For example, hv_24x7 chip level events needs
specific chip-id to which the data is requested should be added as part
of pmu events.
So to enable JSON file support to "hv_24x7" interface, patchset expose
total number of sockets and chips per-socket details in sysfs
files (sockets, chips) under "/sys/devices/hv_24x7/interface/".
To get sockets and number of chips per sockets, patchset adds a rtas call
with token "PROCESSOR_MODULE_INFO" to get these details. Patchset also
handles partition migration case to re-init these system depended
parameters by adding proper calls in post_mobility_fixup() (mobility.c).
v6: http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=164769
Changelog:
v6 -> v7
- Split patchset into two patch series, one with kernel changes
and another with perf tool side changes. This pachset contain
all kernel side changes.
Kajol Jain (5):
powerpc/perf/hv-24x7: Fix inconsistent output values incase multiple
hv-24x7 events run
powerpc/hv-24x7: Add rtas call in hv-24x7 driver to get processor
details
powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show
processor details
Documentation/ABI: Add ABI documentation for chips and sockets
powerpc/hv-24x7: Update post_mobility_fixup() to handle migration
.../sysfs-bus-event_source-devices-hv_24x7 | 14 +++
arch/powerpc/perf/hv-24x7.c | 104 ++++++++++++++++--
arch/powerpc/platforms/pseries/mobility.c | 12 ++
arch/powerpc/platforms/pseries/pseries.h | 3 +
4 files changed, 123 insertions(+), 10 deletions(-)
--
2.18.1
next reply other threads:[~2020-03-27 6:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-27 6:36 Kajol Jain [this message]
2020-03-27 6:36 ` [PATCH v7 1/5] powerpc/perf/hv-24x7: Fix inconsistent output values incase multiple hv-24x7 events run Kajol Jain
2020-04-29 8:56 ` Madhavan Srinivasan
2020-03-27 6:36 ` [PATCH v7 2/5] powerpc/hv-24x7: Add rtas call in hv-24x7 driver to get processor details Kajol Jain
2020-04-29 8:02 ` Madhavan Srinivasan
2020-04-29 11:31 ` Michael Ellerman
2020-05-06 9:53 ` kajoljain
2020-03-27 6:36 ` [PATCH v7 3/5] powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show " Kajol Jain
2020-04-29 9:08 ` Madhavan Srinivasan
2020-04-29 11:32 ` Michael Ellerman
2020-04-29 11:33 ` Michael Ellerman
2020-03-27 6:36 ` [PATCH v7 4/5] Documentation/ABI: Add ABI documentation for chips and sockets Kajol Jain
2020-03-27 6:36 ` [PATCH v7 5/5] powerpc/hv-24x7: Update post_mobility_fixup() to handle migration Kajol Jain
2020-04-29 9:10 ` Madhavan Srinivasan
2020-04-29 11:37 ` Michael Ellerman
2020-05-05 6:57 ` kajoljain
2020-05-05 7:05 ` Michael Ellerman
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