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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
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
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 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

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