51 lines
1013 B
C
51 lines
1013 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <sys/types.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <linux/stringify.h>
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#include "header.h"
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#include "utils_header.h"
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#include "metricgroup.h"
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#include <api/fs/fs.h>
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int
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get_cpuid(char *buffer, size_t sz)
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{
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unsigned long pvr;
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int nb;
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pvr = mfspr(SPRN_PVR);
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nb = scnprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr));
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/* look for end marker to ensure the entire data fit */
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if (strchr(buffer, '$')) {
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buffer[nb-1] = '\0';
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return 0;
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}
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return ENOBUFS;
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}
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char *
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get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
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{
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char *bufp;
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if (asprintf(&bufp, "%.8lx", mfspr(SPRN_PVR)) < 0)
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bufp = NULL;
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return bufp;
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}
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int arch_get_runtimeparam(struct pmu_event *pe)
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{
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int count;
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char path[PATH_MAX] = "/devices/hv_24x7/interface/";
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atoi(pe->aggr_mode) == PerChip ? strcat(path, "sockets") : strcat(path, "coresperchip");
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return sysfs__read_int(path, &count) < 0 ? 1 : count;
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}
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