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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2011-06-24 12:42:55 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2011-06-24 12:42:55 +1000 |
| commit | a1d9899f9317b86bec4058b65aa6d5945738f185 (patch) | |
| tree | da7671cbac625a58c6cb7619e8e8e61bbbb8afc5 /tools/power/cpupower/utils/helpers/sysfs.h | |
| parent | 573f2de9614336f1d02ab84639390350d5f750c9 (diff) | |
| parent | 9cd581865c6ad25348b6b6d61859a1773c1728bf (diff) | |
Merge remote-tracking branch 'cpupowerutils/master'
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 000000000000..f9373e090637 --- /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__ */ |