Merge branch 'pm-cpufreq'
[muen/linux.git] / arch / arm64 / include / asm / topology.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_TOPOLOGY_H
3 #define __ASM_TOPOLOGY_H
4
5 #include <linux/cpumask.h>
6
7 struct cpu_topology {
8         int thread_id;
9         int core_id;
10         int cluster_id;
11         cpumask_t thread_sibling;
12         cpumask_t core_sibling;
13 };
14
15 extern struct cpu_topology cpu_topology[NR_CPUS];
16
17 #define topology_physical_package_id(cpu)       (cpu_topology[cpu].cluster_id)
18 #define topology_core_id(cpu)           (cpu_topology[cpu].core_id)
19 #define topology_core_cpumask(cpu)      (&cpu_topology[cpu].core_sibling)
20 #define topology_sibling_cpumask(cpu)   (&cpu_topology[cpu].thread_sibling)
21
22 void init_cpu_topology(void);
23 void store_cpu_topology(unsigned int cpuid);
24 const struct cpumask *cpu_coregroup_mask(int cpu);
25
26 #ifdef CONFIG_NUMA
27
28 struct pci_bus;
29 int pcibus_to_node(struct pci_bus *bus);
30 #define cpumask_of_pcibus(bus)  (pcibus_to_node(bus) == -1 ?            \
31                                  cpu_all_mask :                         \
32                                  cpumask_of_node(pcibus_to_node(bus)))
33
34 #endif /* CONFIG_NUMA */
35
36 #include <linux/arch_topology.h>
37
38 /* Replace task scheduler's default frequency-invariant accounting */
39 #define arch_scale_freq_capacity topology_get_freq_scale
40
41 /* Replace task scheduler's default cpu-invariant accounting */
42 #define arch_scale_cpu_capacity topology_get_cpu_scale
43
44 #include <asm-generic/topology.h>
45
46 #endif /* _ASM_ARM_TOPOLOGY_H */