1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun // Copyright (C) 2005-2017 Andes Technology Corporation 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #include <stdio.h> 5*4882a593Smuzhiyun #include <stdlib.h> 6*4882a593Smuzhiyun #include <api/fs/fs.h> 7*4882a593Smuzhiyun #include "header.h" 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #define STR_LEN 1024 10*4882a593Smuzhiyun get_cpuid_str(struct perf_pmu * pmu)11*4882a593Smuzhiyunchar *get_cpuid_str(struct perf_pmu *pmu) 12*4882a593Smuzhiyun { 13*4882a593Smuzhiyun /* In nds32, we only have one cpu */ 14*4882a593Smuzhiyun char *buf = NULL; 15*4882a593Smuzhiyun struct cpu_map *cpus; 16*4882a593Smuzhiyun const char *sysfs = sysfs__mountpoint(); 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun if (!sysfs || !pmu || !pmu->cpus) 19*4882a593Smuzhiyun return NULL; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun buf = malloc(STR_LEN); 22*4882a593Smuzhiyun if (!buf) 23*4882a593Smuzhiyun return NULL; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun cpus = cpu_map__get(pmu->cpus); 26*4882a593Smuzhiyun sprintf(buf, "0x%x", cpus->nr - 1); 27*4882a593Smuzhiyun cpu_map__put(cpus); 28*4882a593Smuzhiyun return buf; 29*4882a593Smuzhiyun } 30