diff options
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/perf/fujitsu_uncore_pmu.rst | 7 | ||||
| -rw-r--r-- | Documentation/admin-guide/perf/hisi-pmu.rst | 4 | ||||
| -rw-r--r-- | Documentation/admin-guide/pm/cpufreq.rst | 4 |
3 files changed, 10 insertions, 5 deletions
diff --git a/Documentation/admin-guide/perf/fujitsu_uncore_pmu.rst b/Documentation/admin-guide/perf/fujitsu_uncore_pmu.rst index 46595b788d3a..2ec0249e37b6 100644 --- a/Documentation/admin-guide/perf/fujitsu_uncore_pmu.rst +++ b/Documentation/admin-guide/perf/fujitsu_uncore_pmu.rst @@ -15,15 +15,19 @@ The driver provides a description of its available events and configuration options in sysfs, see /sys/bus/event_sources/devices/mac_iod<iod>_mac<mac>_ch<ch>/ and /sys/bus/event_sources/devices/pci_iod<iod>_pci<pci>/. This driver exports: + - formats, used by perf user space and other tools to configure events - events, used by perf user space and other tools to create events - symbolically, e.g.: + symbolically, e.g.:: + perf stat -a -e mac_iod0_mac0_ch0/event=0x21/ ls perf stat -a -e pci_iod0_pci0/event=0x24/ ls + - cpumask, used by perf user space and other tools to know on which CPUs to open the events This driver supports the following events for MAC: + - cycles This event counts MAC cycles at MAC frequency. - read-count @@ -77,6 +81,7 @@ Examples for use with perf:: perf stat -e mac_iod0_mac0_ch0/ea-mac/ ls And, this driver supports the following events for PCI: + - pci-port0-cycles This event counts PCI cycles at PCI frequency in port0. - pci-port0-read-count diff --git a/Documentation/admin-guide/perf/hisi-pmu.rst b/Documentation/admin-guide/perf/hisi-pmu.rst index f3d9871906a2..d56b2d690709 100644 --- a/Documentation/admin-guide/perf/hisi-pmu.rst +++ b/Documentation/admin-guide/perf/hisi-pmu.rst @@ -66,6 +66,10 @@ specified as a bitmap:: This will only count the operations from core/thread 0 and 1 in this cluster. +User should not use tt_core_deprecated to specify the core/thread filtering. +This option is provided for backward compatiblility and only support 8bit +which may not cover all the core/thread sharing L3C. + 2. Tracetag allow the user to chose to count only read, write or atomic operations via the tt_req parameeter in perf. The default value counts all operations. tt_req is 3bits, 3'b100 represents read operations, 3'b101 diff --git a/Documentation/admin-guide/pm/cpufreq.rst b/Documentation/admin-guide/pm/cpufreq.rst index cacb9f0307dd..738d7b4dc33a 100644 --- a/Documentation/admin-guide/pm/cpufreq.rst +++ b/Documentation/admin-guide/pm/cpufreq.rst @@ -274,10 +274,6 @@ are the following: The time it takes to switch the CPUs belonging to this policy from one P-state to another, in nanoseconds. - If unknown or if known to be so high that the scaling driver does not - work with the `ondemand`_ governor, -1 (:c:macro:`CPUFREQ_ETERNAL`) - will be returned by reads from this attribute. - ``related_cpus`` List of all (online and offline) CPUs belonging to this policy. |