Documentation/ABI: Add ABI documentation for hv-gpci format (435387dd) · Commits · 戴 / test

Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci

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Original line number	Diff line number	Diff line
		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>