diff options
| author | Kajol Jain <kjain@linux.ibm.com> | 2020-10-03 13:19:41 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-10-07 22:34:48 +1100 |
| commit | 435387dd1f6fc03c64e3fdb4cc8737904c08a4db (patch) | |
| tree | a84a03dba165f3276836d4211d836ff6c079511b /Documentation/ABI | |
| parent | 264a034099b6e3c76fae85e75329373f3652a033 (diff) | |
Documentation/ABI: Add ABI documentation for hv-gpci format
This patch adds ABI documentation for hv-gpci event format.
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201003074943.338618-3-kjain@linux.ibm.com
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci index 3ca4e554d2f9..ed989869d116 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci @@ -1,3 +1,34 @@ +What: /sys/bus/event_source/devices/hv_gpci/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. + + counter_info_version = "config:16-23" + length = "config:24-31" + partition_id = "config:32-63" + request = "config:0-31" + sibling_part_id = "config:32-63" + hw_chip_id = "config:32-63" + offset = "config:32-63" + phys_processor_idx = "config:32-63" + secondary_index = "config:0-15" + starting_index = "config:32-63" + + For example, + + processor_core_utilization_instructions_completed = "request=0x94, + phys_processor_idx=?,counter_info_version=0x8, + length=8,offset=0x18" + + In this event, '?' after phys_processor_idx specifies this value + this value will be provided by user while running this event. + What: /sys/bus/event_source/devices/hv_gpci/interface/collect_privileged Date: February 2014 Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> |