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Mark Brownf6e763b2014-03-04 07:51:17 +00001#ifndef __ASM_TOPOLOGY_H
2#define __ASM_TOPOLOGY_H
3
Mark Brownf6e763b2014-03-04 07:51:17 +00004#include <linux/cpumask.h>
5
6struct cpu_topology {
7 int thread_id;
8 int core_id;
9 int cluster_id;
10 cpumask_t thread_sibling;
11 cpumask_t core_sibling;
12};
13
14extern struct cpu_topology cpu_topology[NR_CPUS];
15
16#define topology_physical_package_id(cpu) (cpu_topology[cpu].cluster_id)
17#define topology_core_id(cpu) (cpu_topology[cpu].core_id)
18#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling)
Bartosz Golaszewski06931e62015-05-26 15:11:28 +020019#define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling)
Mark Brownf6e763b2014-03-04 07:51:17 +000020
Mark Brownf6e763b2014-03-04 07:51:17 +000021void init_cpu_topology(void);
22void store_cpu_topology(unsigned int cpuid);
23const struct cpumask *cpu_coregroup_mask(int cpu);
24
Ganapatrao Kulkarni1a2db302016-04-08 15:50:27 -070025#ifdef CONFIG_NUMA
26
27struct pci_bus;
28int pcibus_to_node(struct pci_bus *bus);
29#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
30 cpu_all_mask : \
31 cpumask_of_node(pcibus_to_node(bus)))
32
33#endif /* CONFIG_NUMA */
Juri Lelli5e900d42015-04-30 11:53:48 +010034struct sched_domain;
Dietmar Eggemannea31a3e2015-09-25 17:15:11 +010035#ifdef CONFIG_CPU_FREQ
36#define arch_scale_freq_capacity cpufreq_scale_freq_capacity
Dietmar Eggemannea31a3e2015-09-25 17:15:11 +010037extern unsigned long cpufreq_scale_freq_capacity(struct sched_domain *sd, int cpu);
Dietmar Eggemannbcf1c9d2017-07-14 14:30:31 +010038#define arch_scale_max_freq_capacity cpufreq_scale_max_freq_capacity
39extern unsigned long cpufreq_scale_max_freq_capacity(struct sched_domain *sd, int cpu);
Chris Redpath55e95f992017-05-25 11:17:05 +010040#define arch_scale_min_freq_capacity cpufreq_scale_min_freq_capacity
41extern unsigned long cpufreq_scale_min_freq_capacity(struct sched_domain *sd, int cpu);
Dietmar Eggemannea31a3e2015-09-25 17:15:11 +010042#endif
Juri Lelli5e900d42015-04-30 11:53:48 +010043#define arch_scale_cpu_capacity scale_cpu_capacity
44extern unsigned long scale_cpu_capacity(struct sched_domain *sd, int cpu);
Ganapatrao Kulkarni1a2db302016-04-08 15:50:27 -070045
Mark Brownf6e763b2014-03-04 07:51:17 +000046#include <asm-generic/topology.h>
47
48#endif /* _ASM_ARM_TOPOLOGY_H */