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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * include/linux/arch_topology.h - arch specific cpu topology information
4 */
5#ifndef _LINUX_ARCH_TOPOLOGY_H_
6#define _LINUX_ARCH_TOPOLOGY_H_
7
8#include <linux/types.h>
9#include <linux/percpu.h>
10
11void topology_normalize_cpu_scale(void);
12
13struct device_node;
14bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
15
16DECLARE_PER_CPU(unsigned long, cpu_scale);
17
18struct sched_domain;
19static inline
20unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)
21{
22 return per_cpu(cpu_scale, cpu);
23}
24
25void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);
26
27DECLARE_PER_CPU(unsigned long, freq_scale);
28
29static inline
30unsigned long topology_get_freq_scale(int cpu)
31{
32 return per_cpu(freq_scale, cpu);
33}
34
35#endif /* _LINUX_ARCH_TOPOLOGY_H_ */