diff options
| author | Yicong Yang <yangyicong@hisilicon.com> | 2022-11-17 11:41:34 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-11-29 17:30:54 +0300 |
| commit | eb79f12b4c41dd2403a0d16772ee72fcd6416015 (patch) | |
| tree | d9f14731beebbacceae49e1f7ce757243b74aa1c /Documentation/admin-guide/perf | |
| parent | 6b4bb4f38dbfe85247f006f06135ba46450d5bf0 (diff) | |
| download | linux-eb79f12b4c41dd2403a0d16772ee72fcd6416015.tar.xz | |
docs: perf: Fix PMU instance name of hisi-pcie-pmu
The PMU instance will be called hisi_pcie<sicl>_core<core> rather than
hisi_pcie<sicl>_<core>. Fix this in the documentation.
Fixes: c8602008e247 ("docs: perf: Add description for HiSilicon PCIe PMU driver")
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/20221117084136.53572-3-yangyicong@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/admin-guide/perf')
| -rw-r--r-- | Documentation/admin-guide/perf/hisi-pcie-pmu.rst | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/Documentation/admin-guide/perf/hisi-pcie-pmu.rst b/Documentation/admin-guide/perf/hisi-pcie-pmu.rst index 294ebbdb22af..bbe66480ff85 100644 --- a/Documentation/admin-guide/perf/hisi-pcie-pmu.rst +++ b/Documentation/admin-guide/perf/hisi-pcie-pmu.rst @@ -15,10 +15,10 @@ HiSilicon PCIe PMU driver The PCIe PMU driver registers a perf PMU with the name of its sicl-id and PCIe Core id.:: - /sys/bus/event_source/hisi_pcie<sicl>_<core> + /sys/bus/event_source/hisi_pcie<sicl>_core<core> PMU driver provides description of available events and filter options in sysfs, -see /sys/bus/event_source/devices/hisi_pcie<sicl>_<core>. +see /sys/bus/event_source/devices/hisi_pcie<sicl>_core<core>. The "format" directory describes all formats of the config (events) and config1 (filter options) fields of the perf_event_attr structure. The "events" directory @@ -33,13 +33,13 @@ monitored by PMU. Example usage of perf:: $# perf list - hisi_pcie0_0/rx_mwr_latency/ [kernel PMU event] - hisi_pcie0_0/rx_mwr_cnt/ [kernel PMU event] + hisi_pcie0_core0/rx_mwr_latency/ [kernel PMU event] + hisi_pcie0_core0/rx_mwr_cnt/ [kernel PMU event] ------------------------------------------ - $# perf stat -e hisi_pcie0_0/rx_mwr_latency/ - $# perf stat -e hisi_pcie0_0/rx_mwr_cnt/ - $# perf stat -g -e hisi_pcie0_0/rx_mwr_latency/ -e hisi_pcie0_0/rx_mwr_cnt/ + $# perf stat -e hisi_pcie0_core0/rx_mwr_latency/ + $# perf stat -e hisi_pcie0_core0/rx_mwr_cnt/ + $# perf stat -g -e hisi_pcie0_core0/rx_mwr_latency/ -e hisi_pcie0_core0/rx_mwr_cnt/ The current driver does not support sampling. So "perf record" is unsupported. Also attach to a task is unsupported for PCIe PMU. @@ -64,7 +64,7 @@ bit8 is set, port=0x100; if these two Root Ports are both monitored, port=0x101. Example usage of perf:: - $# perf stat -e hisi_pcie0_0/rx_mwr_latency,port=0x1/ sleep 5 + $# perf stat -e hisi_pcie0_core0/rx_mwr_latency,port=0x1/ sleep 5 -bdf @@ -76,7 +76,7 @@ For example, "bdf=0x3900" means BDF of target Endpoint is 0000:39:00.0. Example usage of perf:: - $# perf stat -e hisi_pcie0_0/rx_mrd_flux,bdf=0x3900/ sleep 5 + $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,bdf=0x3900/ sleep 5 2. Trigger filter Event statistics start when the first time TLP length is greater/smaller @@ -90,7 +90,7 @@ means start when TLP length < condition. Example usage of perf:: - $# perf stat -e hisi_pcie0_0/rx_mrd_flux,trig_len=0x4,trig_mode=1/ sleep 5 + $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,trig_len=0x4,trig_mode=1/ sleep 5 3. Threshold filter Counter counts when TLP length within the specified range. You can set the @@ -103,4 +103,4 @@ when TLP length < threshold. Example usage of perf:: - $# perf stat -e hisi_pcie0_0/rx_mrd_flux,thr_len=0x4,thr_mode=1/ sleep 5 + $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,thr_len=0x4,thr_mode=1/ sleep 5 |