/* SPDX-License-Identifier: GPL-2.0 */#ifndef RESCTRL_H#define RESCTRL_H#include <stdio.h>#include <math.h>#include <errno.h>#include <sched.h>#include <stdlib.h>#include <unistd.h>#include <string.h>#include <signal.h>#include <dirent.h>#include <stdbool.h>#include <sys/stat.h>#include <sys/ioctl.h>#include <sys/mount.h>#include <sys/types.h>#include <sys/wait.h>#include <sys/select.h>#include <sys/time.h>#include <sys/eventfd.h>#include <asm/unistd.h>#include <linux/perf_event.h>#include "../kselftest.h" #define MB			(1024 * 1024)#define RESCTRL_PATH		"/sys/fs/resctrl"#define PHYS_ID_PATH		"/sys/devices/system/cpu/cpu"#define INFO_PATH		"/sys/fs/resctrl/info" #define ARCH_INTEL     1#define ARCH_AMD       2 #define END_OF_TESTS	1 #define BENCHMARK_ARGS		64 #define DEFAULT_SPAN		(250 * MB) #define PARENT_EXIT(err_msg)			\	do {					\		perror(err_msg);		\		kill(ppid, SIGKILL);		\		umount_resctrlfs();		\		exit(EXIT_FAILURE);		\	} while (0) /* * resctrl_val_param:	resctrl test parameters * @resctrl_val:	Resctrl feature (Eg: mbm, mba.. etc) * @ctrlgrp:		Name of the control monitor group (con_mon grp) * @mongrp:		Name of the monitor group (mon grp) * @cpu_no:		CPU number to which the benchmark would be binded * @filename:		Name of file to which the o/p should be written * @bw_report:		Bandwidth report type (reads vs writes) * @setup:		Call back function to setup test environment */struct resctrl_val_param {	char		*resctrl_val;	char		ctrlgrp[64];	char		mongrp[64];	int		cpu_no;	char		filename[64];	char		*bw_report;	unsigned long	mask;	int		num_of_runs;	int		(*setup)(struct resctrl_val_param *param);}; #define MBM_STR			"mbm"#define MBA_STR			"mba"#define CMT_STR			"cmt"#define CAT_STR			"cat" extern pid_t bm_pid, ppid; extern char llc_occup_path[1024]; int get_vendor(void);bool check_resctrlfs_support(void);int filter_dmesg(void);int get_resource_id(int cpu_no, int *resource_id);int mount_resctrlfs(void);int umount_resctrlfs(void);int validate_bw_report_request(char *bw_report);bool validate_resctrl_feature_request(const char *resource, const char *feature);char *fgrep(FILE *inf, const char *str);int taskset_benchmark(pid_t bm_pid, int cpu_no);int write_schemata(char *ctrlgrp, char *schemata, int cpu_no,		   char *resctrl_val);int write_bm_pid_to_resctrl(pid_t bm_pid, char *ctrlgrp, char *mongrp,			    char *resctrl_val);int perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu,		    int group_fd, unsigned long flags);int run_fill_buf(size_t span, int memflush, int op, bool once);int resctrl_val(const char * const *benchmark_cmd, struct resctrl_val_param *param);int mbm_bw_change(int cpu_no, const char * const *benchmark_cmd);void tests_cleanup(void);void mbm_test_cleanup(void);int mba_schemata_change(int cpu_no, const char * const *benchmark_cmd);void mba_test_cleanup(void);int get_cbm_mask(char *cache_type, char *cbm_mask);int get_cache_size(int cpu_no, char *cache_type, unsigned long *cache_size);void ctrlc_handler(int signum, siginfo_t *info, void *ptr);int signal_handler_register(void);void signal_handler_unregister(void);int cat_val(struct resctrl_val_param *param, size_t span);void cat_test_cleanup(void);int cat_perf_miss_val(int cpu_no, int no_of_bits, char *cache_type);int cmt_resctrl_val(int cpu_no, int n, const char * const *benchmark_cmd);unsigned int count_bits(unsigned long n);void cmt_test_cleanup(void);int get_core_sibling(int cpu_no);int measure_cache_vals(struct resctrl_val_param *param, int bm_pid);int show_cache_info(unsigned long sum_llc_val, int no_of_bits,		    size_t cache_span, unsigned long max_diff,		    unsigned long max_diff_percent, unsigned long num_of_runs,		    bool platform, bool cmt); #endif /* RESCTRL_H */