cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sysfs.h (1440B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __CPUPOWER_HELPERS_SYSFS_H__
      3#define __CPUPOWER_HELPERS_SYSFS_H__
      4
      5#define PATH_TO_CPU "/sys/devices/system/cpu/"
      6#define MAX_LINE_LEN 255
      7#define SYSFS_PATH_MAX 255
      8
      9extern unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen);
     10
     11extern unsigned int sysfs_idlestate_file_exists(unsigned int cpu,
     12						unsigned int idlestate,
     13						const char *fname);
     14
     15extern int sysfs_is_cpu_online(unsigned int cpu);
     16
     17extern int sysfs_is_idlestate_disabled(unsigned int cpu,
     18				       unsigned int idlestate);
     19extern int sysfs_idlestate_disable(unsigned int cpu, unsigned int idlestate,
     20				   unsigned int disable);
     21extern unsigned long sysfs_get_idlestate_latency(unsigned int cpu,
     22						unsigned int idlestate);
     23extern unsigned long sysfs_get_idlestate_usage(unsigned int cpu,
     24					unsigned int idlestate);
     25extern unsigned long long sysfs_get_idlestate_time(unsigned int cpu,
     26						unsigned int idlestate);
     27extern char *sysfs_get_idlestate_name(unsigned int cpu,
     28				unsigned int idlestate);
     29extern char *sysfs_get_idlestate_desc(unsigned int cpu,
     30				unsigned int idlestate);
     31extern unsigned int sysfs_get_idlestate_count(unsigned int cpu);
     32
     33extern char *sysfs_get_cpuidle_governor(void);
     34extern char *sysfs_get_cpuidle_driver(void);
     35
     36extern int sysfs_get_sched(const char *smt_mc);
     37extern int sysfs_set_sched(const char *smt_mc, int val);
     38
     39#endif /* __CPUPOWER_HELPERS_SYSFS_H__ */