sysfs-bus-event_source-devices-hv_24x7 (3861B)
1What: /sys/bus/event_source/devices/hv_24x7/format 2Date: September 2020 3Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 4Description: Read-only. Attribute group to describe the magic bits 5 that go into perf_event_attr.config for a particular pmu. 6 (See ABI/testing/sysfs-bus-event_source-devices-format). 7 8 Each attribute under this group defines a bit range of the 9 perf_event_attr.config. All supported attributes are listed 10 below:: 11 12 chip = "config:16-31" 13 core = "config:16-31" 14 domain = "config:0-3" 15 lpar = "config:0-15" 16 offset = "config:32-63" 17 vcpu = "config:16-31" 18 19 For example:: 20 21 PM_PB_CYC = "domain=1,offset=0x80,chip=?,lpar=0x0" 22 23 In this event, '?' after chip specifies that 24 this value will be provided by user while running this event. 25 26What: /sys/bus/event_source/devices/hv_24x7/interface/catalog 27Date: February 2014 28Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 29Description: 30 Provides access to the binary "24x7 catalog" provided by the 31 hypervisor on POWER7 and 8 systems. This catalog lists events 32 available from the powerpc "hv_24x7" pmu. Its format is 33 documented here: 34 https://raw.githubusercontent.com/jmesmon/catalog-24x7/master/hv-24x7-catalog.h 35 36What: /sys/bus/event_source/devices/hv_24x7/interface/catalog_length 37Date: February 2014 38Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 39Description: 40 A number equal to the length in bytes of the catalog. This is 41 also extractable from the provided binary "catalog" sysfs entry. 42 43What: /sys/bus/event_source/devices/hv_24x7/interface/catalog_version 44Date: February 2014 45Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 46Description: 47 Exposes the "version" field of the 24x7 catalog. This is also 48 extractable from the provided binary "catalog" sysfs entry. 49 50What: /sys/devices/hv_24x7/interface/sockets 51Date: May 2020 52Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 53Description: read only 54 This sysfs interface exposes the number of sockets present in the 55 system. 56 57What: /sys/devices/hv_24x7/interface/chipspersocket 58Date: May 2020 59Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 60Description: read only 61 This sysfs interface exposes the number of chips per socket 62 present in the system. 63 64What: /sys/devices/hv_24x7/interface/coresperchip 65Date: May 2020 66Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 67Description: read only 68 This sysfs interface exposes the number of cores per chip 69 present in the system. 70 71What: /sys/devices/hv_24x7/cpumask 72Date: July 2020 73Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 74Description: read only 75 This sysfs file exposes the cpumask which is designated to make 76 HCALLs to retrieve hv-24x7 pmu event counter data. 77 78What: /sys/bus/event_source/devices/hv_24x7/event_descs/<event-name> 79Date: February 2014 80Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 81Description: 82 Provides the description of a particular event as provided by 83 the firmware. If firmware does not provide a description, no 84 file will be created. 85 86 Note that the event-name lacks the domain suffix appended for 87 events in the events/ dir. 88 89What: /sys/bus/event_source/devices/hv_24x7/event_long_descs/<event-name> 90Date: February 2014 91Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org> 92Description: 93 Provides the "long" description of a particular event as 94 provided by the firmware. If firmware does not provide a 95 description, no file will be created. 96 97 Note that the event-name lacks the domain suffix appended for 98 events in the events/ dir.