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1What: nvdimm2Date: July 20203KernelVersion: 5.84Contact: Dan Williams <dan.j.williams@intel.com>5Description:6 7The libnvdimm sub-system implements a common sysfs interface for8platform nvdimm resources. See Documentation/driver-api/nvdimm/.9 10What: /sys/bus/event_source/devices/nmemX/format11Date: February 202212KernelVersion: 5.1813Contact: Kajol Jain <kjain@linux.ibm.com>14Description: (RO) Attribute group to describe the magic bits15 that go into perf_event_attr.config for a particular pmu.16 (See ABI/testing/sysfs-bus-event_source-devices-format).17 18 Each attribute under this group defines a bit range of the19 perf_event_attr.config. Supported attribute is listed20 below::21 22 event = "config:0-4" - event ID23 24 For example::25 26 ctl_res_cnt = "event=0x1"27 28What: /sys/bus/event_source/devices/nmemX/events29Date: February 202230KernelVersion: 5.1831Contact: Kajol Jain <kjain@linux.ibm.com>32Description: (RO) Attribute group to describe performance monitoring events33 for the nvdimm memory device. Each attribute in this group34 describes a single performance monitoring event supported by35 this nvdimm pmu. The name of the file is the name of the event.36 (See ABI/testing/sysfs-bus-event_source-devices-events). A37 listing of the events supported by a given nvdimm provider type38 can be found in Documentation/driver-api/nvdimm/$provider.39 40What: /sys/bus/event_source/devices/nmemX/cpumask41Date: February 202242KernelVersion: 5.1843Contact: Kajol Jain <kjain@linux.ibm.com>44Description: (RO) This sysfs file exposes the cpumask which is designated to45 to retrieve nvdimm pmu event counter data.46 47What: /sys/bus/nd/devices/nmemX/cxl/id48Date: November 202249KernelVersion: 6.250Contact: Dave Jiang <dave.jiang@intel.com>51Description: (RO) Show the id (serial) of the device. This is CXL specific.52 53What: /sys/bus/nd/devices/nmemX/cxl/provider54Date: November 202255KernelVersion: 6.256Contact: Dave Jiang <dave.jiang@intel.com>57Description: (RO) Shows the CXL bridge device that ties to a CXL memory device58 to this NVDIMM device. I.e. the parent of the device returned is59 a /sys/bus/cxl/devices/memX instance.60