1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation 3 */ 4 5 #ifndef _POWER_COMMON_H_ 6 #define _POWER_COMMON_H_ 7 8 9 #include <rte_common.h> 10 11 #define RTE_POWER_INVALID_FREQ_INDEX (~0) 12 13 14 #ifdef RTE_LIBRTE_POWER_DEBUG 15 #define POWER_DEBUG_TRACE(fmt, args...) \ 16 RTE_LOG(ERR, POWER, "%s: " fmt, __func__, ## args) 17 #else 18 #define POWER_DEBUG_TRACE(fmt, args...) 19 #endif 20 21 /* check if scaling driver matches one we want */ 22 int cpufreq_check_scaling_driver(const char *driver); 23 int power_set_governor(unsigned int lcore_id, const char *new_governor, 24 char *orig_governor, size_t orig_governor_len); 25 int open_core_sysfs_file(FILE **f, const char *mode, const char *format, ...) 26 __rte_format_printf(3, 4); 27 int read_core_sysfs_u32(FILE *f, uint32_t *val); 28 int read_core_sysfs_s(FILE *f, char *buf, unsigned int len); 29 int write_core_sysfs_s(FILE *f, const char *str); 30 31 #endif /* _POWER_COMMON_H_ */ 32