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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* (C) 2016 SUSE Software Solutions GmbH
* Thomas Renninger <trenn@suse.de>
*/
#ifndef __CPUPOWER_RAPL_H__
#define __CPUPOWER_RAPL_H__
#define PATH_TO_POWERCAP "/sys/devices/virtual/powercap"
#define PATH_TO_RAPL "/sys/devices/virtual/powercap/intel-rapl"
#define PATH_TO_RAPL_CLASS "/sys/devices/virtual/powercap/intel-rapl"
#define POWERCAP_MAX_CHILD_ZONES 10
#define POWERCAP_MAX_TREE_DEPTH 10
#define MAX_LINE_LEN 4096
#define SYSFS_PATH_MAX 255
#include <stdint.h>
struct powercap_zone {
char name[MAX_LINE_LEN];
/*
* sys_name relative to PATH_TO_POWERCAP,
* do not forget the / in between
*/
char sys_name[SYSFS_PATH_MAX];
int tree_depth;
struct powercap_zone *parent;
struct powercap_zone *children[POWERCAP_MAX_CHILD_ZONES];
/* More possible caps or attributes to be added? */
uint32_t has_power_uw:1,
has_energy_uj:1;
};
int powercap_walk_zones(struct powercap_zone *zone,
int (*f)(struct powercap_zone *zone));
struct powercap_zone *powercap_init_zones(void);
int powercap_get_enabled(int *mode);
int powercap_set_enabled(int mode);
int powercap_get_driver(char *driver, int buflen);
int powercap_get_max_energy_range_uj(struct powercap_zone *zone, uint64_t *val);
int powercap_get_energy_uj(struct powercap_zone *zone, uint64_t *val);
int powercap_get_max_power_range_uw(struct powercap_zone *zone, uint64_t *val);
int powercap_get_power_uw(struct powercap_zone *zone, uint64_t *val);
int powercap_zone_get_enabled(struct powercap_zone *zone, int *mode);
int powercap_zone_set_enabled(struct powercap_zone *zone, int mode);
#endif /* __CPUPOWER_RAPL_H__ */