What: /sys/bus/event_source/devices/dfl_fmeX/format Date: April 2020 KernelVersion: 5.8 Contact: Wu Hao 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:: event = "config:0-11" - event ID evtype = "config:12-15" - event type portid = "config:16-23" - event source For example:: fab_mmio_read = "event=0x06,evtype=0x02,portid=0xff" It shows this fab_mmio_read is a fabric type (0x02) event with 0x06 local event id for overall monitoring (portid=0xff). What: /sys/bus/event_source/devices/dfl_fmeX/cpumask Date: April 2020 KernelVersion: 5.8 Contact: Wu Hao Description: Read-only. This file always returns cpu which the PMU is bound for access to all fme pmu performance monitoring events. What: /sys/bus/event_source/devices/dfl_fmeX/events Date: April 2020 KernelVersion: 5.8 Contact: Wu Hao Description: Read-only. Attribute group to describe performance monitoring events specific to fme. Each attribute in this group describes a single performance monitoring event supported by this fme pmu. The name of the file is the name of the event. (See ABI/testing/sysfs-bus-event_source-devices-events). All supported performance monitoring events are listed below. Basic events (evtype=0x00):: clock = "event=0x00,evtype=0x00,portid=0xff" Cache events (evtype=0x01):: cache_read_hit = "event=0x00,evtype=0x01,portid=0xff" cache_read_miss = "event=0x01,evtype=0x01,portid=0xff" cache_write_hit = "event=0x02,evtype=0x01,portid=0xff" cache_write_miss = "event=0x03,evtype=0x01,portid=0xff" cache_hold_request = "event=0x05,evtype=0x01,portid=0xff" cache_data_write_port_contention = "event=0x06,evtype=0x01,portid=0xff" cache_tag_write_port_contention = "event=0x07,evtype=0x01,portid=0xff" cache_tx_req_stall = "event=0x08,evtype=0x01,portid=0xff" cache_rx_req_stall = "event=0x09,evtype=0x01,portid=0xff" cache_eviction = "event=0x0a,evtype=0x01,portid=0xff" Fabric events (evtype=0x02):: fab_pcie0_read = "event=0x00,evtype=0x02,portid=0xff" fab_pcie0_write = "event=0x01,evtype=0x02,portid=0xff" fab_pcie1_read = "event=0x02,evtype=0x02,portid=0xff" fab_pcie1_write = "event=0x03,evtype=0x02,portid=0xff" fab_upi_read = "event=0x04,evtype=0x02,portid=0xff" fab_upi_write = "event=0x05,evtype=0x02,portid=0xff" fab_mmio_read = "event=0x06,evtype=0x02,portid=0xff" fab_mmio_write = "event=0x07,evtype=0x02,portid=0xff" fab_port_pcie0_read = "event=0x00,evtype=0x02,portid=?" fab_port_pcie0_write = "event=0x01,evtype=0x02,portid=?" fab_port_pcie1_read = "event=0x02,evtype=0x02,portid=?" fab_port_pcie1_write = "event=0x03,evtype=0x02,portid=?" fab_port_upi_read = "event=0x04,evtype=0x02,portid=?" fab_port_upi_write = "event=0x05,evtype=0x02,portid=?" fab_port_mmio_read = "event=0x06,evtype=0x02,portid=?" fab_port_mmio_write = "event=0x07,evtype=0x02,portid=?" VTD events (evtype=0x03):: vtd_port_read_transaction = "event=0x00,evtype=0x03,portid=?" vtd_port_write_transaction = "event=0x01,evtype=0x03,portid=?" vtd_port_devtlb_read_hit = "event=0x02,evtype=0x03,portid=?" vtd_port_devtlb_write_hit = "event=0x03,evtype=0x03,portid=?" vtd_port_devtlb_4k_fill = "event=0x04,evtype=0x03,portid=?" vtd_port_devtlb_2m_fill = "event=0x05,evtype=0x03,portid=?" vtd_port_devtlb_1g_fill = "event=0x06,evtype=0x03,portid=?" VTD SIP events (evtype=0x04):: vtd_sip_iotlb_4k_hit = "event=0x00,evtype=0x04,portid=0xff" vtd_sip_iotlb_2m_hit = "event=0x01,evtype=0x04,portid=0xff" vtd_sip_iotlb_1g_hit = "event=0x02,evtype=0x04,portid=0xff" vtd_sip_slpwc_l3_hit = "event=0x03,evtype=0x04,portid=0xff" vtd_sip_slpwc_l4_hit = "event=0x04,evtype=0x04,portid=0xff" vtd_sip_rcc_hit = "event=0x05,evtype=0x04,portid=0xff" vtd_sip_iotlb_4k_miss = "event=0x06,evtype=0x04,portid=0xff" vtd_sip_iotlb_2m_miss = "event=0x07,evtype=0x04,portid=0xff" vtd_sip_iotlb_1g_miss = "event=0x08,evtype=0x04,portid=0xff" vtd_sip_slpwc_l3_miss = "event=0x09,evtype=0x04,portid=0xff" vtd_sip_slpwc_l4_miss = "event=0x0a,evtype=0x04,portid=0xff" vtd_sip_rcc_miss = "event=0x0b,evtype=0x04,portid=0xff"