100 lines
4.0 KiB
Diff
100 lines
4.0 KiB
Diff
From f6ad3073186b182d495dc42c48baac26cb1c16f2 Mon Sep 17 00:00:00 2001
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From: Yicong Yang <yangyicong@hisilicon.com>
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Date: Thu, 17 Nov 2022 16:41:34 +0800
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Subject: [PATCH 39/55] docs: perf: Fix PMU instance name of hisi-pcie-pmu
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mainline inclusion
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from mainline-v6.2-rc1
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commit eb79f12b4c41dd2403a0d16772ee72fcd6416015
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bugzilla: https://gitee.com/openeuler/kernel/issues/I8AU2M
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Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb79f12b4c41dd2403a0d16772ee72fcd6416015
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--------------------------------------------------------------------
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The PMU instance will be called hisi_pcie<sicl>_core<core> rather than
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hisi_pcie<sicl>_<core>. Fix this in the documentation.
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Fixes: c8602008e247 ("docs: perf: Add description for HiSilicon PCIe PMU driver")
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Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
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Link: https://lore.kernel.org/r/20221117084136.53572-3-yangyicong@huawei.com
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Signed-off-by: Will Deacon <will@kernel.org>
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Signed-off-by: hongrongxuan <hongrongxuan@huawei.com>
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---
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.../admin-guide/perf/hisi-pcie-pmu.rst | 22 +++++++++----------
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1 file changed, 11 insertions(+), 11 deletions(-)
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diff --git a/Documentation/admin-guide/perf/hisi-pcie-pmu.rst b/Documentation/admin-guide/perf/hisi-pcie-pmu.rst
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index 294ebbdb22af..bbe66480ff85 100644
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--- a/Documentation/admin-guide/perf/hisi-pcie-pmu.rst
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+++ b/Documentation/admin-guide/perf/hisi-pcie-pmu.rst
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@@ -15,10 +15,10 @@ HiSilicon PCIe PMU driver
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The PCIe PMU driver registers a perf PMU with the name of its sicl-id and PCIe
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Core id.::
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- /sys/bus/event_source/hisi_pcie<sicl>_<core>
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+ /sys/bus/event_source/hisi_pcie<sicl>_core<core>
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PMU driver provides description of available events and filter options in sysfs,
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-see /sys/bus/event_source/devices/hisi_pcie<sicl>_<core>.
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+see /sys/bus/event_source/devices/hisi_pcie<sicl>_core<core>.
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The "format" directory describes all formats of the config (events) and config1
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(filter options) fields of the perf_event_attr structure. The "events" directory
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@@ -33,13 +33,13 @@ monitored by PMU.
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Example usage of perf::
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$# perf list
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- hisi_pcie0_0/rx_mwr_latency/ [kernel PMU event]
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- hisi_pcie0_0/rx_mwr_cnt/ [kernel PMU event]
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+ hisi_pcie0_core0/rx_mwr_latency/ [kernel PMU event]
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+ hisi_pcie0_core0/rx_mwr_cnt/ [kernel PMU event]
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------------------------------------------
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- $# perf stat -e hisi_pcie0_0/rx_mwr_latency/
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- $# perf stat -e hisi_pcie0_0/rx_mwr_cnt/
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- $# perf stat -g -e hisi_pcie0_0/rx_mwr_latency/ -e hisi_pcie0_0/rx_mwr_cnt/
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+ $# perf stat -e hisi_pcie0_core0/rx_mwr_latency/
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+ $# perf stat -e hisi_pcie0_core0/rx_mwr_cnt/
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+ $# perf stat -g -e hisi_pcie0_core0/rx_mwr_latency/ -e hisi_pcie0_core0/rx_mwr_cnt/
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The current driver does not support sampling. So "perf record" is unsupported.
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Also attach to a task is unsupported for PCIe PMU.
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@@ -64,7 +64,7 @@ bit8 is set, port=0x100; if these two Root Ports are both monitored, port=0x101.
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Example usage of perf::
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- $# perf stat -e hisi_pcie0_0/rx_mwr_latency,port=0x1/ sleep 5
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+ $# perf stat -e hisi_pcie0_core0/rx_mwr_latency,port=0x1/ sleep 5
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-bdf
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@@ -76,7 +76,7 @@ For example, "bdf=0x3900" means BDF of target Endpoint is 0000:39:00.0.
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Example usage of perf::
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- $# perf stat -e hisi_pcie0_0/rx_mrd_flux,bdf=0x3900/ sleep 5
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+ $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,bdf=0x3900/ sleep 5
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2. Trigger filter
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Event statistics start when the first time TLP length is greater/smaller
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@@ -90,7 +90,7 @@ means start when TLP length < condition.
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Example usage of perf::
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- $# perf stat -e hisi_pcie0_0/rx_mrd_flux,trig_len=0x4,trig_mode=1/ sleep 5
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+ $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,trig_len=0x4,trig_mode=1/ sleep 5
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3. Threshold filter
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Counter counts when TLP length within the specified range. You can set the
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@@ -103,4 +103,4 @@ when TLP length < threshold.
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Example usage of perf::
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- $# perf stat -e hisi_pcie0_0/rx_mrd_flux,thr_len=0x4,thr_mode=1/ sleep 5
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+ $# perf stat -e hisi_pcie0_core0/rx_mrd_flux,thr_len=0x4,thr_mode=1/ sleep 5
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--
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2.27.0
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