tools/power/cpupower/lib/cpupower.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __CPUPOWER_CPUPOWER_H__
   3 #define __CPUPOWER_CPUPOWER_H__
   4
   5 struct cpupower_topology {
   6         /* Amount of CPU cores, packages and threads per core in the system */
   7         unsigned int cores;
   8         unsigned int pkgs;
   9         unsigned int threads; /* per core */
  10
  11         /* Array gets mallocated with cores entries, holding per core info */
  12         struct cpuid_core_info *core_info;
  13 };
  14
  15 struct cpuid_core_info {
  16         int pkg;
  17         int core;
  18         int cpu;
  19
  20         /* flags */
  21         unsigned int is_online:1;
  22 };
  23
  24 #ifdef __cplusplus
  25 extern "C" {
  26 #endif
  27
  28 int get_cpu_topology(struct cpupower_topology *cpu_top);
  29 void cpu_topology_release(struct cpupower_topology cpu_top);
  30 int cpupower_is_cpu_online(unsigned int cpu);
  31
  32 #ifdef __cplusplus
  33 }
  34 #endif
  35
  36 #endif