[mirror_ubuntu-bionic-kernel.git] / include / linux / arch_topology.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * include/linux/arch_topology.h - arch specific cpu topology information
 */
#ifndef _LINUX_ARCH_TOPOLOGY_H_
#define _LINUX_ARCH_TOPOLOGY_H_

#include <linux/types.h>
#include <linux/percpu.h>

void topology_normalize_cpu_scale(void);

struct device_node;
bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);

DECLARE_PER_CPU(unsigned long, cpu_scale);

struct sched_domain;
static inline
unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)
{
	return per_cpu(cpu_scale, cpu);
}

void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);

DECLARE_PER_CPU(unsigned long, freq_scale);

static inline
unsigned long topology_get_freq_scale(struct sched_domain *sd, int cpu)
{
	return per_cpu(freq_scale, cpu);
}

#endif /* _LINUX_ARCH_TOPOLOGY_H_ */
Commit	Line	Data
	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
	11	void topology_normalize_cpu_scale(void);
	12
	13	struct device_node;
	14	bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
	15
	16	DECLARE_PER_CPU(unsigned long, cpu_scale);
	17
	18	struct sched_domain;
	19	static inline
	20	unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)
	21	{
	22	return per_cpu(cpu_scale, cpu);
	23	}
	24
	25	void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);
	26
	27	DECLARE_PER_CPU(unsigned long, freq_scale);
	28
	29	static inline
	30	unsigned long topology_get_freq_scale(struct sched_domain *sd, int cpu)
	31	{
	32	return per_cpu(freq_scale, cpu);
	33	}
	34
	35	#endif /* _LINUX_ARCH_TOPOLOGY_H_ */