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| author | Ricardo Neri <ricardo.neri-calderon@linux.intel.com> | 2025-04-18 19:55:04 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-05-07 21:56:55 +0200 |
| commit | f1a50492f5bdb024a5eb4d1de6798369dbf93418 (patch) | |
| tree | ee16f8cae8fad5d027772d8cb32a244a4631b6e4 /tools/perf/scripts/python | |
| parent | arch_topology: Relocate cpu_scale to topology.[h|c] (diff) | |
| download | linux-f1a50492f5bdb024a5eb4d1de6798369dbf93418.tar.gz linux-f1a50492f5bdb024a5eb4d1de6798369dbf93418.zip | |
cpufreq: intel_pstate: Populate the cpu_capacity sysfs entries
Intel hybrid processors have CPUs of different capacity. Populate the
interface /sys/devices/system/cpu/cpuN/cpu_capacity.
This interface uses the per-CPU variable `cpu_scale`. On x86 this
variable has no other use besides feeding the sysfs entries. Initialize
it when setting CPU capacity for the scheduler and scale-invariant code.
Feed it with arch_scale_cpu_capacity() as it gives capacity normalized
to the interval [0, SCHED_CAPACITY_SCALE].
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions