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| author | Tony Luck <tony.luck@intel.com> | 2016-10-22 06:19:48 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-10-26 23:12:37 +0200 |
| commit | 1d78dc59f5ab6f467e49882518453adc7e4caa44 (patch) | |
| tree | 6cd42b6f317dc645a6c7b88a4a3fccf712d89def | |
| parent | 9fe68cad6e74967b88d0c6aeca7d9cd6b6e91942 (diff) | |
| download | linux-1d78dc59f5ab6f467e49882518453adc7e4caa44.tar.gz linux-1d78dc59f5ab6f467e49882518453adc7e4caa44.tar.bz2 linux-1d78dc59f5ab6f467e49882518453adc7e4caa44.zip | |
Documentation, ABI: Document the new sysfs files for cpu cache ids
Add an ABI document entry for /sys/devices/system/cpu/cpu*/cache/index*/id.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com>
Cc: "David Carrillo-Cisneros" <davidcc@google.com>
Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com>
Cc: "Peter Zijlstra" <peterz@infradead.org>
Cc: "Stephane Eranian" <eranian@google.com>
Cc: "Dave Hansen" <dave.hansen@intel.com>
Cc: "Shaohua Li" <shli@fb.com>
Cc: "Nilay Vaish" <nilayvaish@gmail.com>
Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com>
Cc: "Ingo Molnar" <mingo@elte.hu>
Cc: "Borislav Petkov" <bp@suse.de>
Cc: "H. Peter Anvin" <h.peter.anvin@intel.com>
Link: http://lkml.kernel.org/r/1477142405-32078-2-git-send-email-fenghua.yu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 498741737055..2a4a423d08e0 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -272,6 +272,22 @@ Description: Parameters for the CPU cache attributes the modified cache line is written to main memory only when it is replaced + +What: /sys/devices/system/cpu/cpu*/cache/index*/id +Date: September 2016 +Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> +Description: Cache id + + The id provides a unique number for a specific instance of + a cache of a particular type. E.g. there may be a level + 3 unified cache on each socket in a server and we may + assign them ids 0, 1, 2, ... + + Note that id value can be non-contiguous. E.g. level 1 + caches typically exist per core, but there may not be a + power of two cores on a socket, so these caches may be + numbered 0, 1, 2, 3, 4, 5, 8, 9, 10, ... + What: /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/turbo_stat /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/sub_turbo_stat |