v4.19.13 snapshot.
diff --git a/tools/power/cpupower/utils/cpupower-set.c b/tools/power/cpupower/utils/cpupower-set.c
new file mode 100644
index 0000000..532f46b
--- /dev/null
+++ b/tools/power/cpupower/utils/cpupower-set.c
@@ -0,0 +1,99 @@
+/*
+ * (C) 2011 Thomas Renninger <trenn@suse.de>, Novell Inc.
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ */
+
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <getopt.h>
+
+#include "helpers/helpers.h"
+#include "helpers/sysfs.h"
+#include "helpers/bitmask.h"
+
+static struct option set_opts[] = {
+ {"perf-bias", required_argument, NULL, 'b'},
+ { },
+};
+
+static void print_wrong_arg_exit(void)
+{
+ printf(_("invalid or unknown argument\n"));
+ exit(EXIT_FAILURE);
+}
+
+int cmd_set(int argc, char **argv)
+{
+ extern char *optarg;
+ extern int optind, opterr, optopt;
+ unsigned int cpu;
+
+ union {
+ struct {
+ int perf_bias:1;
+ };
+ int params;
+ } params;
+ int perf_bias = 0;
+ int ret = 0;
+
+ setlocale(LC_ALL, "");
+ textdomain(PACKAGE);
+
+ params.params = 0;
+ /* parameter parsing */
+ while ((ret = getopt_long(argc, argv, "b:",
+ set_opts, NULL)) != -1) {
+ switch (ret) {
+ case 'b':
+ if (params.perf_bias)
+ print_wrong_arg_exit();
+ perf_bias = atoi(optarg);
+ if (perf_bias < 0 || perf_bias > 15) {
+ printf(_("--perf-bias param out "
+ "of range [0-%d]\n"), 15);
+ print_wrong_arg_exit();
+ }
+ params.perf_bias = 1;
+ break;
+ default:
+ print_wrong_arg_exit();
+ }
+ };
+
+ if (!params.params)
+ print_wrong_arg_exit();
+
+ /* Default is: set all CPUs */
+ if (bitmask_isallclear(cpus_chosen))
+ bitmask_setall(cpus_chosen);
+
+ /* loop over CPUs */
+ for (cpu = bitmask_first(cpus_chosen);
+ cpu <= bitmask_last(cpus_chosen); cpu++) {
+
+ if (!bitmask_isbitset(cpus_chosen, cpu))
+ continue;
+
+ if (sysfs_is_cpu_online(cpu) != 1){
+ fprintf(stderr, _("Cannot set values on CPU %d:"), cpu);
+ fprintf(stderr, _(" *is offline\n"));
+ continue;
+ }
+
+ if (params.perf_bias) {
+ ret = msr_intel_set_perf_bias(cpu, perf_bias);
+ if (ret) {
+ fprintf(stderr, _("Error setting perf-bias "
+ "value on CPU %d\n"), cpu);
+ break;
+ }
+ }
+ }
+ return ret;
+}