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| author | Len Brown <len.brown@intel.com> | 2019-05-13 13:58:56 -0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-05-23 10:08:34 +0200 |
| commit | 2e4c54dac7b360c3820399bdf06cde9134a4495b (patch) | |
| tree | 21c10b11e98d2d5b13096de21fb339590baab13e /Documentation | |
| parent | b73ed8dc0597c11ec5064d06b9bbd4e541b6d4e7 (diff) | |
| download | linux-2e4c54dac7b360c3820399bdf06cde9134a4495b.tar.bz2 | |
topology: Create core_cpus and die_cpus sysfs attributes
Create CPU topology sysfs attributes: "core_cpus" and "core_cpus_list"
These attributes represent all of the logical CPUs that share the
same core.
These attriutes is synonymous with the existing "thread_siblings" and
"thread_siblings_list" attribute, which will be deprecated.
Create CPU topology sysfs attributes: "die_cpus" and "die_cpus_list".
These attributes represent all of the logical CPUs that share the
same die.
Suggested-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/071c23a298cd27ede6ed0b6460cae190d193364f.1557769318.git.len.brown@intel.com
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/cputopology.txt | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/Documentation/cputopology.txt b/Documentation/cputopology.txt index 48af5c290e20..b90dafcc8237 100644 --- a/Documentation/cputopology.txt +++ b/Documentation/cputopology.txt @@ -36,15 +36,15 @@ drawer_id: identifier (rather than the kernel's). The actual value is architecture and platform dependent. -thread_siblings: +core_cpus: - internal kernel map of cpuX's hardware threads within the same - core as cpuX. + internal kernel map of CPUs within the same core. + (deprecated name: "thread_siblings") -thread_siblings_list: +core_cpus_list: - human-readable list of cpuX's hardware threads within the same - core as cpuX. + human-readable list of CPUs within the same core. + (deprecated name: "thread_siblings_list"); package_cpus: @@ -56,6 +56,14 @@ package_cpus_list: human-readable list of CPUs sharing the same physical_package_id. (deprecated name: "core_siblings_list") +die_cpus: + + internal kernel map of CPUs within the same die. + +die_cpus_list: + + human-readable list of CPUs within the same die. + book_siblings: internal kernel map of cpuX's hardware threads within the same @@ -93,6 +101,7 @@ these macros in include/asm-XXX/topology.h:: #define topology_drawer_id(cpu) #define topology_sibling_cpumask(cpu) #define topology_core_cpumask(cpu) + #define topology_die_cpumask(cpu) #define topology_book_cpumask(cpu) #define topology_drawer_cpumask(cpu) |