diff options
Diffstat (limited to 'tools/perf/arch/powerpc/util/header.c')
-rw-r--r-- | tools/perf/arch/powerpc/util/header.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c new file mode 100644 index 000000000..58b2d610a --- /dev/null +++ b/tools/perf/arch/powerpc/util/header.c @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <sys/types.h> +#include <errno.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <linux/stringify.h> +#include "header.h" +#include "utils_header.h" +#include "metricgroup.h" +#include <api/fs/fs.h> + +int +get_cpuid(char *buffer, size_t sz) +{ + unsigned long pvr; + int nb; + + pvr = mfspr(SPRN_PVR); + + nb = scnprintf(buffer, sz, "%lu,%lu$", PVR_VER(pvr), PVR_REV(pvr)); + + /* look for end marker to ensure the entire data fit */ + if (strchr(buffer, '$')) { + buffer[nb-1] = '\0'; + return 0; + } + return ENOBUFS; +} + +char * +get_cpuid_str(struct perf_pmu *pmu __maybe_unused) +{ + char *bufp; + + if (asprintf(&bufp, "%.8lx", mfspr(SPRN_PVR)) < 0) + bufp = NULL; + + return bufp; +} + +int arch_get_runtimeparam(struct pmu_event *pe) +{ + int count; + char path[PATH_MAX] = "/devices/hv_24x7/interface/"; + + atoi(pe->aggr_mode) == PerChip ? strcat(path, "sockets") : strcat(path, "coresperchip"); + return sysfs__read_int(path, &count) < 0 ? 1 : count; +} |