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| author | Takashi Iwai <tiwai@suse.de> | 2011-08-08 14:30:29 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-08-08 14:30:29 +0200 |
| commit | 0a2d31b62dba9b5b92a38c67c9cc42630513662a (patch) | |
| tree | f755d74ec85248de645e10c45ed1a2ed467530f6 /tools/power/cpupower/utils/helpers/sysfs.h | |
| parent | 8039290a91c5dc4414093c086987a5d7738fe2fd (diff) | |
| parent | df944f66784e6d4f2f50739263a4947885d8b6ae (diff) | |
Merge branch 'fix/kconfig' into for-linus
Diffstat (limited to 'tools/power/cpupower/utils/helpers/sysfs.h')
| -rw-r--r-- | tools/power/cpupower/utils/helpers/sysfs.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/power/cpupower/utils/helpers/sysfs.h b/tools/power/cpupower/utils/helpers/sysfs.h new file mode 100644 index 00000000000..f9373e09063 --- /dev/null +++ b/tools/power/cpupower/utils/helpers/sysfs.h @@ -0,0 +1,28 @@ +#ifndef __CPUPOWER_HELPERS_SYSFS_H__ +#define __CPUPOWER_HELPERS_SYSFS_H__ + +#define PATH_TO_CPU "/sys/devices/system/cpu/" +#define MAX_LINE_LEN 255 +#define SYSFS_PATH_MAX 255 + +extern unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen); + +extern unsigned long sysfs_get_idlestate_latency(unsigned int cpu, + unsigned int idlestate); +extern unsigned long sysfs_get_idlestate_usage(unsigned int cpu, + unsigned int idlestate); +extern unsigned long long sysfs_get_idlestate_time(unsigned int cpu, + unsigned int idlestate); +extern char *sysfs_get_idlestate_name(unsigned int cpu, + unsigned int idlestate); +extern char *sysfs_get_idlestate_desc(unsigned int cpu, + unsigned int idlestate); +extern int sysfs_get_idlestate_count(unsigned int cpu); + +extern char *sysfs_get_cpuidle_governor(void); +extern char *sysfs_get_cpuidle_driver(void); + +extern int sysfs_get_sched(const char *smt_mc); +extern int sysfs_set_sched(const char *smt_mc, int val); + +#endif /* __CPUPOWER_HELPERS_SYSFS_H__ */ |