add boot partition size

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2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci
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+What:           /sys/bus/event_source/devices/hv_gpci/format
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+Date:           September 2020
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+Contact:        Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
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+Description:    Read-only. Attribute group to describe the magic bits
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+                that go into perf_event_attr.config for a particular pmu.
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+                (See ABI/testing/sysfs-bus-event_source-devices-format).
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+
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+                Each attribute under this group defines a bit range of the
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+                perf_event_attr.config. All supported attributes are listed
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+                below::
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+
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+				counter_info_version  = "config:16-23"
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+				length  = "config:24-31"
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+				partition_id  = "config:32-63"
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+				request = "config:0-31"
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+				sibling_part_id = "config:32-63"
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+				hw_chip_id = "config:32-63"
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+				offset = "config:32-63"
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+				phys_processor_idx = "config:32-63"
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+				secondary_index = "config:0-15"
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+				starting_index = "config:32-63"
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+
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+                For example::
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+
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+		  processor_core_utilization_instructions_completed = "request=0x94,
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+					phys_processor_idx=?,counter_info_version=0x8,
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+					length=8,offset=0x18"
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+
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+		In this event, '?' after phys_processor_idx specifies this value
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+		this value will be provided by user while running this event.
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+
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 What:		/sys/bus/event_source/devices/hv_gpci/interface/collect_privileged
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 Date:		February 2014
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 Contact:	Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
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 		'0' if the hypervisor is configured to forbid access to event
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 		counters being accumulated by other guests and to physical
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 		domain event counters.
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+
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 		'1' if that access is allowed.
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 What:		/sys/bus/event_source/devices/hv_gpci/interface/ga
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 Description:
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 		A number indicating the latest version of the gpci interface
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 		that the kernel is aware of.
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+
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+What:		/sys/devices/hv_gpci/cpumask
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+Date:		October 2020
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+Contact:	Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
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+Description:	read only
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+		This sysfs file exposes the cpumask which is designated to make
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+		HCALLs to retrieve hv-gpci pmu event counter data.