Merge branch 'pm-cpufreq'
[muen/linux.git] / arch / arm / include / asm / topology.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_ARM_TOPOLOGY_H
3 #define _ASM_ARM_TOPOLOGY_H
4
5 #ifdef CONFIG_ARM_CPU_TOPOLOGY
6
7 #include <linux/cpumask.h>
8
9 struct cputopo_arm {
10         int thread_id;
11         int core_id;
12         int socket_id;
13         cpumask_t thread_sibling;
14         cpumask_t core_sibling;
15 };
16
17 extern struct cputopo_arm cpu_topology[NR_CPUS];
18
19 #define topology_physical_package_id(cpu)       (cpu_topology[cpu].socket_id)
20 #define topology_core_id(cpu)           (cpu_topology[cpu].core_id)
21 #define topology_core_cpumask(cpu)      (&cpu_topology[cpu].core_sibling)
22 #define topology_sibling_cpumask(cpu)   (&cpu_topology[cpu].thread_sibling)
23
24 void init_cpu_topology(void);
25 void store_cpu_topology(unsigned int cpuid);
26 const struct cpumask *cpu_coregroup_mask(int cpu);
27
28 #include <linux/arch_topology.h>
29
30 /* Replace task scheduler's default frequency-invariant accounting */
31 #define arch_scale_freq_capacity topology_get_freq_scale
32
33 /* Replace task scheduler's default cpu-invariant accounting */
34 #define arch_scale_cpu_capacity topology_get_cpu_scale
35
36 #else
37
38 static inline void init_cpu_topology(void) { }
39 static inline void store_cpu_topology(unsigned int cpuid) { }
40
41 #endif
42
43 #include <asm-generic/topology.h>
44
45 #endif /* _ASM_ARM_TOPOLOGY_H */