diff options
Diffstat (limited to 'Documentation/ABI')
-rw-r--r-- | Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 | 25 | ||||
-rw-r--r-- | Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci | 38 |
2 files changed, 63 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 e82fc37be802..2273627df190 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> 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..6a023b42486c 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> @@ -41,3 +72,10 @@ Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> Description: A number indicating the latest version of the gpci interface that the kernel is aware of. + +What: /sys/devices/hv_gpci/cpumask +Date: October 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-gpci pmu event counter data. |