/* SPDX-License-Identifier: GPL-2.0 */#define _GNU_SOURCE#ifndef RESCTRL_H#define RESCTRL_H#include <stdio.h>#include <stdarg.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> #define MB			(1024 * 1024)#define RESCTRL_PATH		"/sys/fs/resctrl"#define PHYS_ID_PATH		"/sys/devices/system/cpu/cpu"#define CBM_MASK_PATH		"/sys/fs/resctrl/info" #define PARENT_EXIT(err_msg)			\	do {					\		perror(err_msg);		\		kill(ppid, SIGKILL);		\		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 * @span:		Memory bytes accessed in each benchmark iteration * @mum_resctrlfs:	Should the resctrl FS be remounted? * @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;	unsigned long	span;	int		mum_resctrlfs;	char		filename[64];	char		*bw_report;	unsigned long	mask;	int		num_of_runs;	int		(*setup)(int num, ...);}; pid_t bm_pid, ppid;int tests_run; char llc_occup_path[1024];bool is_amd; bool check_resctrlfs_support(void);int filter_dmesg(void);int remount_resctrlfs(bool mum_resctrlfs);int get_resource_id(int cpu_no, int *resource_id);int umount_resctrlfs(void);int validate_bw_report_request(char *bw_report);bool validate_resctrl_feature_request(char *resctrl_val);char *fgrep(FILE *inf, const char *str);int taskset_benchmark(pid_t bm_pid, int cpu_no);void run_benchmark(int signum, siginfo_t *info, void *ucontext);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(unsigned long span, int malloc_and_init_memory, int memflush,		 int op, char *resctrl_va);int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param);int mbm_bw_change(int span, int cpu_no, char *bw_report, char **benchmark_cmd);void tests_cleanup(void);void mbm_test_cleanup(void);int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd);void mba_test_cleanup(void);int get_cbm_mask(char *cache_type);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 cat_val(struct resctrl_val_param *param);void cat_test_cleanup(void);int cat_perf_miss_val(int cpu_no, int no_of_bits, char *cache_type);int cqm_resctrl_val(int cpu_no, int n, char **benchmark_cmd);unsigned int count_bits(unsigned long n);void cqm_test_cleanup(void);int get_core_sibling(int cpu_no);int measure_cache_vals(struct resctrl_val_param *param, int bm_pid); #endif /* RESCTRL_H */