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authorWill Deacon <will@kernel.org>2024-05-09 15:56:10 +0100
committerWill Deacon <will@kernel.org>2024-05-09 15:56:10 +0100
commit42e7ddbaf1909835a81e8e746cf6420bdd63d237 (patch)
treec9717442318bf745c97d3500dbd0c5b8520b0bec /Documentation/admin-guide
parenta5a5ce57953b53e5ec5b9b9455176bc90253cfa8 (diff)
parent410e471f87465f04d7ae7f8ed16ef8e7a3b5517c (diff)
downloadlinux-42e7ddbaf1909835a81e8e746cf6420bdd63d237.tar.gz
Merge branch 'for-next/perf' into for-next/core
* for-next/perf: (41 commits) arm64: Add USER_STACKTRACE support drivers/perf: hisi: hns3: Actually use devm_add_action_or_reset() drivers/perf: hisi: hns3: Fix out-of-bound access when valid event group drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group perf/arm-spe: Assign parents for event_source device perf/arm-smmuv3: Assign parents for event_source device perf/arm-dsu: Assign parents for event_source device perf/arm-dmc620: Assign parents for event_source device perf/arm-ccn: Assign parents for event_source device perf/arm-cci: Assign parents for event_source device perf/alibaba_uncore: Assign parents for event_source device perf/arm_pmu: Assign parents for event_source devices perf/imx_ddr: Assign parents for event_source devices perf/qcom: Assign parents for event_source devices Documentation: qcom-pmu: Use /sys/bus/event_source/devices paths perf/riscv: Assign parents for event_source devices perf/thunderx2: Assign parents for event_source devices Documentation: thunderx2-pmu: Use /sys/bus/event_source/devices paths perf/xgene: Assign parents for event_source devices Documentation: xgene-pmu: Use /sys/bus/event_source/devices paths ...
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/perf/hisi-pmu.rst1
-rw-r--r--Documentation/admin-guide/perf/hns3-pmu.rst8
-rw-r--r--Documentation/admin-guide/perf/qcom_l2_pmu.rst2
-rw-r--r--Documentation/admin-guide/perf/qcom_l3_pmu.rst2
-rw-r--r--Documentation/admin-guide/perf/thunderx2-pmu.rst2
-rw-r--r--Documentation/admin-guide/perf/xgene-pmu.rst2
6 files changed, 8 insertions, 9 deletions
diff --git a/Documentation/admin-guide/perf/hisi-pmu.rst b/Documentation/admin-guide/perf/hisi-pmu.rst
index e0174d20809a18..5cc248d18c63a7 100644
--- a/Documentation/admin-guide/perf/hisi-pmu.rst
+++ b/Documentation/admin-guide/perf/hisi-pmu.rst
@@ -20,7 +20,6 @@ interrupt, and the PMU driver shall register perf PMU drivers like L3C,
HHA and DDRC etc. The available events and configuration options shall
be described in the sysfs, see:
-/sys/devices/hisi_sccl{X}_<l3c{Y}/hha{Y}/ddrc{Y}>/, or
/sys/bus/event_source/devices/hisi_sccl{X}_<l3c{Y}/hha{Y}/ddrc{Y}>.
The "perf list" command shall list the available events from sysfs.
diff --git a/Documentation/admin-guide/perf/hns3-pmu.rst b/Documentation/admin-guide/perf/hns3-pmu.rst
index 75a40846d47f5f..1195e570f2d6b5 100644
--- a/Documentation/admin-guide/perf/hns3-pmu.rst
+++ b/Documentation/admin-guide/perf/hns3-pmu.rst
@@ -16,7 +16,7 @@ HNS3 PMU driver
The HNS3 PMU driver registers a perf PMU with the name of its sicl id.::
- /sys/devices/hns3_pmu_sicl_<sicl_id>
+ /sys/bus/event_source/devices/hns3_pmu_sicl_<sicl_id>
PMU driver provides description of available events, filter modes, format,
identifier and cpumask in sysfs.
@@ -40,9 +40,9 @@ device.
Example usage of checking event code and subevent code::
- $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time
config=0x00204
- $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num
config=0x10204
Each performance statistic has a pair of events to get two values to
@@ -60,7 +60,7 @@ computation to calculate real performance data is:::
Example usage of checking supported filter mode::
- $# cat /sys/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num
filter mode supported: global/port/port-tc/func/func-queue/
Example usage of perf::
diff --git a/Documentation/admin-guide/perf/qcom_l2_pmu.rst b/Documentation/admin-guide/perf/qcom_l2_pmu.rst
index c130178a4a5559..c37c6be9b8d889 100644
--- a/Documentation/admin-guide/perf/qcom_l2_pmu.rst
+++ b/Documentation/admin-guide/perf/qcom_l2_pmu.rst
@@ -10,7 +10,7 @@ There is one logical L2 PMU exposed, which aggregates the results from
the physical PMUs.
The driver provides a description of its available events and configuration
-options in sysfs, see /sys/devices/l2cache_0.
+options in sysfs, see /sys/bus/event_source/devices/l2cache_0.
The "format" directory describes the format of the events.
diff --git a/Documentation/admin-guide/perf/qcom_l3_pmu.rst b/Documentation/admin-guide/perf/qcom_l3_pmu.rst
index a3d014a46bfdb3..a66556b7e985c1 100644
--- a/Documentation/admin-guide/perf/qcom_l3_pmu.rst
+++ b/Documentation/admin-guide/perf/qcom_l3_pmu.rst
@@ -9,7 +9,7 @@ PMU with device name l3cache_<socket>_<instance>. User space is responsible
for aggregating across slices.
The driver provides a description of its available events and configuration
-options in sysfs, see /sys/devices/l3cache*. Given that these are uncore PMUs
+options in sysfs, see /sys/bus/event_source/devices/l3cache*. Given that these are uncore PMUs
the driver also exposes a "cpumask" sysfs attribute which contains a mask
consisting of one CPU per socket which will be used to handle all the PMU
events on that socket.
diff --git a/Documentation/admin-guide/perf/thunderx2-pmu.rst b/Documentation/admin-guide/perf/thunderx2-pmu.rst
index 01f158238ae1ee..9255f7bf945202 100644
--- a/Documentation/admin-guide/perf/thunderx2-pmu.rst
+++ b/Documentation/admin-guide/perf/thunderx2-pmu.rst
@@ -22,7 +22,7 @@ The thunderx2_pmu driver registers per-socket perf PMUs for the DMC and
L3C devices. Each PMU can be used to count up to 4 (DMC/L3C) or up to 8
(CCPI2) events simultaneously. The PMUs provide a description of their
available events and configuration options under sysfs, see
-/sys/devices/uncore_<l3c_S/dmc_S/ccpi2_S/>; S is the socket id.
+/sys/bus/event_source/devices/uncore_<l3c_S/dmc_S/ccpi2_S/>; S is the socket id.
The driver does not support sampling, therefore "perf record" will not
work. Per-task perf sessions are also not supported.
diff --git a/Documentation/admin-guide/perf/xgene-pmu.rst b/Documentation/admin-guide/perf/xgene-pmu.rst
index 644f8ed89152d6..98ccb8e777c4d1 100644
--- a/Documentation/admin-guide/perf/xgene-pmu.rst
+++ b/Documentation/admin-guide/perf/xgene-pmu.rst
@@ -13,7 +13,7 @@ PMU (perf) driver
The xgene-pmu driver registers several perf PMU drivers. Each of the perf
driver provides description of its available events and configuration options
-in sysfs, see /sys/devices/<l3cX/iobX/mcbX/mcX>/.
+in sysfs, see /sys/bus/event_source/devices/<l3cX/iobX/mcbX/mcX>/.
The "format" directory describes format of the config (event ID),
config1 (agent ID) fields of the perf_event_attr structure. The "events"