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    Subject[RESEND PATCH v4 4/4] powerpc/papr_scm: Document papr_scm sysfs event format entries
    Date
    Details is added for the event, cpumask and format attributes
    in the ABI documentation.

    Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Reviewed-by: Madhavan Srinivasan <maddy@linux.ibm.com>
    Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com>
    Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
    ---
    Documentation/ABI/testing/sysfs-bus-papr-pmem | 31 +++++++++++++++++++
    1 file changed, 31 insertions(+)

    diff --git a/Documentation/ABI/testing/sysfs-bus-papr-pmem b/Documentation/ABI/testing/sysfs-bus-papr-pmem
    index 95254cec92bf..4d86252448f8 100644
    --- a/Documentation/ABI/testing/sysfs-bus-papr-pmem
    +++ b/Documentation/ABI/testing/sysfs-bus-papr-pmem
    @@ -61,3 +61,34 @@ Description:
    * "CchRHCnt" : Cache Read Hit Count
    * "CchWHCnt" : Cache Write Hit Count
    * "FastWCnt" : Fast Write Count
    +
    +What: /sys/devices/nmemX/format
    +Date: June 2021
    +Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, nvdimm@lists.linux.dev,
    +Description: (RO) Attribute group to describe the magic bits
    + that go into perf_event_attr.config for a particular pmu.
    + (See ABI/testing/sysfs-bus-event_source-devices-format).
    +
    + Each attribute under this group defines a bit range of the
    + perf_event_attr.config. Supported attribute is listed
    + below::
    +
    + event = "config:0-4" - event ID
    +
    + For example::
    + noopstat = "event=0x1"
    +
    +What: /sys/devices/nmemX/events
    +Date: June 2021
    +Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, nvdimm@lists.linux.dev,
    +Description: (RO) Attribute group to describe performance monitoring
    + events specific to papr-scm. Each attribute in this group describes
    + a single performance monitoring event supported by this nvdimm pmu.
    + The name of the file is the name of the event.
    + (See ABI/testing/sysfs-bus-event_source-devices-events).
    +
    +What: /sys/devices/nmemX/cpumask
    +Date: June 2021
    +Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, nvdimm@lists.linux.dev,
    +Description: (RO) This sysfs file exposes the cpumask which is designated to make
    + HCALLs to retrieve nvdimm pmu event counter data.
    --
    2.26.2
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