162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci#include <sys/types.h> 362306a36Sopenharmony_ci#include <errno.h> 462306a36Sopenharmony_ci#include <unistd.h> 562306a36Sopenharmony_ci#include <stdio.h> 662306a36Sopenharmony_ci#include <stdlib.h> 762306a36Sopenharmony_ci#include <string.h> 862306a36Sopenharmony_ci#include <linux/stringify.h> 962306a36Sopenharmony_ci#include "header.h" 1062306a36Sopenharmony_ci#include "utils_header.h" 1162306a36Sopenharmony_ci#include "metricgroup.h" 1262306a36Sopenharmony_ci#include <api/fs/fs.h> 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ciint 1562306a36Sopenharmony_ciget_cpuid(char *buffer, size_t sz) 1662306a36Sopenharmony_ci{ 1762306a36Sopenharmony_ci unsigned long pvr; 1862306a36Sopenharmony_ci int nb; 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci pvr = mfspr(SPRN_PVR); 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci nb = scnprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr)); 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ci /* look for end marker to ensure the entire data fit */ 2562306a36Sopenharmony_ci if (strchr(buffer, '$')) { 2662306a36Sopenharmony_ci buffer[nb-1] = '\0'; 2762306a36Sopenharmony_ci return 0; 2862306a36Sopenharmony_ci } 2962306a36Sopenharmony_ci return ENOBUFS; 3062306a36Sopenharmony_ci} 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_cichar * 3362306a36Sopenharmony_ciget_cpuid_str(struct perf_pmu *pmu __maybe_unused) 3462306a36Sopenharmony_ci{ 3562306a36Sopenharmony_ci char *bufp; 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci if (asprintf(&bufp, "%.8lx", mfspr(SPRN_PVR)) < 0) 3862306a36Sopenharmony_ci bufp = NULL; 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci return bufp; 4162306a36Sopenharmony_ci} 4262306a36Sopenharmony_ci 4362306a36Sopenharmony_ciint arch_get_runtimeparam(const struct pmu_metric *pm) 4462306a36Sopenharmony_ci{ 4562306a36Sopenharmony_ci int count; 4662306a36Sopenharmony_ci char path[PATH_MAX] = "/devices/hv_24x7/interface/"; 4762306a36Sopenharmony_ci 4862306a36Sopenharmony_ci strcat(path, pm->aggr_mode == PerChip ? "sockets" : "coresperchip"); 4962306a36Sopenharmony_ci return sysfs__read_int(path, &count) < 0 ? 1 : count; 5062306a36Sopenharmony_ci} 51