66 void membw_initialize_perf_event_attr(int i, int j)  in membw_initialize_perf_event_attr()  argument
68 	memset(&imc_counters_config[i][j].pe, 0,  in membw_initialize_perf_event_attr()
70 	imc_counters_config[i][j].pe.type = imc_counters_config[i][j].type;  in membw_initialize_perf_event_attr()
71 	imc_counters_config[i][j].pe.size = sizeof(struct perf_event_attr);  in membw_initialize_perf_event_attr()
72 	imc_counters_config[i][j].pe.disabled = 1;  in membw_initialize_perf_event_attr()
73 	imc_counters_config[i][j].pe.inherit = 1;  in membw_initialize_perf_event_attr()
74 	imc_counters_config[i][j].pe.exclude_guest = 0;  in membw_initialize_perf_event_attr()
75 	imc_counters_config[i][j].pe.config =  in membw_initialize_perf_event_attr()
76 		imc_counters_config[i][j].umask << 8 |  in membw_initialize_perf_event_attr()
77 		imc_counters_config[i][j].event;  in membw_initialize_perf_event_attr()
78 	imc_counters_config[i][j].pe.sample_type = PERF_SAMPLE_IDENTIFIER;  in membw_initialize_perf_event_attr()
79 	imc_counters_config[i][j].pe.read_format =  in membw_initialize_perf_event_attr()
83 void membw_ioctl_perf_event_ioc_reset_enable(int i, int j)  in membw_ioctl_perf_event_ioc_reset_enable()  argument
85 	ioctl(imc_counters_config[i][j].fd, PERF_EVENT_IOC_RESET, 0);  in membw_ioctl_perf_event_ioc_reset_enable()
86 	ioctl(imc_counters_config[i][j].fd, PERF_EVENT_IOC_ENABLE, 0);  in membw_ioctl_perf_event_ioc_reset_enable()
89 void membw_ioctl_perf_event_ioc_disable(int i, int j)  in membw_ioctl_perf_event_ioc_disable()  argument
91 	ioctl(imc_counters_config[i][j].fd, PERF_EVENT_IOC_DISABLE, 0);  in membw_ioctl_perf_event_ioc_disable()
133 static int open_perf_event(int i, int cpu_no, int j)  in open_perf_event()  argument
135 	imc_counters_config[i][j].fd =  in open_perf_event()
136 		perf_event_open(&imc_counters_config[i][j].pe, -1, cpu_no, -1,  in open_perf_event()
139 	if (imc_counters_config[i][j].fd == -1) {  in open_perf_event()
141 			imc_counters_config[i][j].pe.config);  in open_perf_event()
280 	int imc, j;  in initialize_mem_bw_imc()  local
288 		for (j = 0; j < 2; j++)  in initialize_mem_bw_imc()
289 			membw_initialize_perf_event_attr(imc, j);  in initialize_mem_bw_imc()
308 	int imc, j, ret;  in get_mem_bw_imc()  local
313 		for (j = 0; j < 2; j++) {  in get_mem_bw_imc()
314 			ret = open_perf_event(imc, cpu_no, j);  in get_mem_bw_imc()
318 		for (j = 0; j < 2; j++)  in get_mem_bw_imc()
319 			membw_ioctl_perf_event_ioc_reset_enable(imc, j);  in get_mem_bw_imc()
326 		for (j = 0; j < 2; j++)  in get_mem_bw_imc()
327 			membw_ioctl_perf_event_ioc_disable(imc, j);  in get_mem_bw_imc()