2020-10-30 07:40:49 +00:00
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What: nvdimm
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Date: July 2020
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KernelVersion: 5.8
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Contact: Dan Williams <dan.j.williams@intel.com>
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Description:
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2020-07-20 22:08:18 +00:00
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The libnvdimm sub-system implements a common sysfs interface for
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platform nvdimm resources. See Documentation/driver-api/nvdimm/.
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2022-02-25 14:30:24 +00:00
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What: /sys/bus/event_source/devices/nmemX/format
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Date: February 2022
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KernelVersion: 5.18
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Contact: Kajol Jain <kjain@linux.ibm.com>
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Description: (RO) 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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Each attribute under this group defines a bit range of the
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perf_event_attr.config. Supported attribute is listed
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below::
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2023-07-21 20:44:47 +00:00
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2022-02-25 14:30:24 +00:00
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event = "config:0-4" - event ID
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For example::
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2023-07-21 20:44:47 +00:00
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ctl_res_cnt = "event=0x1"
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2022-02-25 14:30:24 +00:00
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What: /sys/bus/event_source/devices/nmemX/events
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Date: February 2022
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KernelVersion: 5.18
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Contact: Kajol Jain <kjain@linux.ibm.com>
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Description: (RO) Attribute group to describe performance monitoring events
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for the nvdimm memory device. Each attribute in this group
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describes a single performance monitoring event supported by
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this nvdimm pmu. The name of the file is the name of the event.
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(See ABI/testing/sysfs-bus-event_source-devices-events). A
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listing of the events supported by a given nvdimm provider type
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can be found in Documentation/driver-api/nvdimm/$provider.
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What: /sys/bus/event_source/devices/nmemX/cpumask
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Date: February 2022
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KernelVersion: 5.18
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Contact: Kajol Jain <kjain@linux.ibm.com>
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Description: (RO) This sysfs file exposes the cpumask which is designated to
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to retrieve nvdimm pmu event counter data.
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2022-11-30 19:22:50 +00:00
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What: /sys/bus/nd/devices/nmemX/cxl/id
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Date: November 2022
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KernelVersion: 6.2
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Contact: Dave Jiang <dave.jiang@intel.com>
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Description: (RO) Show the id (serial) of the device. This is CXL specific.
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2022-11-30 19:23:01 +00:00
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What: /sys/bus/nd/devices/nmemX/cxl/provider
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Date: November 2022
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KernelVersion: 6.2
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Contact: Dave Jiang <dave.jiang@intel.com>
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Description: (RO) Shows the CXL bridge device that ties to a CXL memory device
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to this NVDIMM device. I.e. the parent of the device returned is
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a /sys/bus/cxl/devices/memX instance.
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