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Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 index ec27c6c9e737..de390a010af8 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 @@ -1,3 +1,28 @@ +What: /sys/bus/event_source/devices/hv_24x7/format +Date: September 2020 +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> +Description: Read-only. 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. All supported attributes are listed + below:: + + chip = "config:16-31" + core = "config:16-31" + domain = "config:0-3" + lpar = "config:0-15" + offset = "config:32-63" + vcpu = "config:16-31" + + For example:: + + PM_PB_CYC = "domain=1,offset=0x80,chip=?,lpar=0x0" + + In this event, '?' after chip specifies that + this value will be provided by user while running this event. + What: /sys/bus/event_source/devices/hv_24x7/interface/catalog Date: February 2014 Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> @@ -22,6 +47,34 @@ Description: Exposes the "version" field of the 24x7 catalog. This is also extractable from the provided binary "catalog" sysfs entry. +What: /sys/devices/hv_24x7/interface/sockets +Date: May 2020 +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> +Description: read only + This sysfs interface exposes the number of sockets present in the + system. + +What: /sys/devices/hv_24x7/interface/chipspersocket +Date: May 2020 +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> +Description: read only + This sysfs interface exposes the number of chips per socket + present in the system. + +What: /sys/devices/hv_24x7/interface/coresperchip +Date: May 2020 +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> +Description: read only + This sysfs interface exposes the number of cores per chip + present in the system. + +What: /sys/devices/hv_24x7/cpumask +Date: July 2020 +Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> +Description: read only + This sysfs file exposes the cpumask which is designated to make + HCALLs to retrieve hv-24x7 pmu event counter data. + What: /sys/bus/event_source/devices/hv_24x7/event_descs/<event-name> Date: February 2014 Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> |