1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun #include <sys/types.h>
3*4882a593Smuzhiyun #include <errno.h>
4*4882a593Smuzhiyun #include <unistd.h>
5*4882a593Smuzhiyun #include <stdio.h>
6*4882a593Smuzhiyun #include <stdlib.h>
7*4882a593Smuzhiyun #include <string.h>
8*4882a593Smuzhiyun #include <linux/stringify.h>
9*4882a593Smuzhiyun #include "header.h"
10*4882a593Smuzhiyun #include "utils_header.h"
11*4882a593Smuzhiyun #include "metricgroup.h"
12*4882a593Smuzhiyun #include <api/fs/fs.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun int
get_cpuid(char * buffer,size_t sz)15*4882a593Smuzhiyun get_cpuid(char *buffer, size_t sz)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun unsigned long pvr;
18*4882a593Smuzhiyun int nb;
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun pvr = mfspr(SPRN_PVR);
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun nb = scnprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun /* look for end marker to ensure the entire data fit */
25*4882a593Smuzhiyun if (strchr(buffer, '$')) {
26*4882a593Smuzhiyun buffer[nb-1] = '\0';
27*4882a593Smuzhiyun return 0;
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun return ENOBUFS;
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun char *
get_cpuid_str(struct perf_pmu * pmu __maybe_unused)33*4882a593Smuzhiyun get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun char *bufp;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun if (asprintf(&bufp, "%.8lx", mfspr(SPRN_PVR)) < 0)
38*4882a593Smuzhiyun bufp = NULL;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun return bufp;
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun
arch_get_runtimeparam(struct pmu_event * pe)43*4882a593Smuzhiyun int arch_get_runtimeparam(struct pmu_event *pe)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun int count;
46*4882a593Smuzhiyun char path[PATH_MAX] = "/devices/hv_24x7/interface/";
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun atoi(pe->aggr_mode) == PerChip ? strcat(path, "sockets") : strcat(path, "coresperchip");
49*4882a593Smuzhiyun return sysfs__read_int(path, &count) < 0 ? 1 : count;
50*4882a593Smuzhiyun }
51