static int cpu__get_topology_int(int cpu, const char *name, int *value) { char path[PATH_MAX]; snprintf(path, PATH_MAX, "devices/system/cpu/cpu%d/topology/%s", cpu, name); return sysfs__read_int(path, value); }
int cpu__get_max_freq(unsigned long long *freq) { char entry[PATH_MAX]; int cpu; if (sysfs__read_int("devices/system/cpu/online", &cpu) < 0) return -1; snprintf(entry, sizeof(entry), "devices/system/cpu/cpu%d/cpufreq/cpuinfo_max_freq", cpu); return sysfs__read_ull(entry, freq); }
static void cache_line_size(int *cacheline_sizep) { if (sysfs__read_int("devices/system/cpu/cpu0/cache/index0/coherency_line_size", cacheline_sizep)) pr_debug("cannot determine cache line size"); }