2 * (C) 2011 Thomas Renninger <trenn@suse.de>, Novell Inc.
4 * Licensed under the terms of the GNU GPL License version 2.
15 #include "helpers/helpers.h"
16 #include "helpers/sysfs.h"
18 static struct option set_opts
[] = {
19 {"perf-bias", optional_argument
, NULL
, 'b'},
23 static void print_wrong_arg_exit(void)
25 printf(_("invalid or unknown argument\n"));
29 int cmd_info(int argc
, char **argv
)
32 extern int optind
, opterr
, optopt
;
43 setlocale(LC_ALL
, "");
46 /* parameter parsing */
47 while ((ret
= getopt_long(argc
, argv
, "b", set_opts
, NULL
)) != -1) {
51 print_wrong_arg_exit();
55 print_wrong_arg_exit();
62 /* Default is: show output of CPU 0 only */
63 if (bitmask_isallclear(cpus_chosen
))
64 bitmask_setbit(cpus_chosen
, 0);
66 /* Add more per cpu options here */
67 if (!params
.perf_bias
)
70 if (params
.perf_bias
) {
73 printf(_("Intel's performance bias setting needs root privileges\n"));
74 } else if (!(cpupower_cpu_info
.caps
& CPUPOWER_CAP_PERF_BIAS
)) {
75 printf(_("System does not support Intel's performance"
82 for (cpu
= bitmask_first(cpus_chosen
);
83 cpu
<= bitmask_last(cpus_chosen
); cpu
++) {
85 if (!bitmask_isbitset(cpus_chosen
, cpu
))
88 printf(_("analyzing CPU %d:\n"), cpu
);
90 if (sysfs_is_cpu_online(cpu
) != 1){
91 printf(_(" *is offline\n"));
95 if (params
.perf_bias
) {
96 ret
= msr_intel_get_perf_bias(cpu
);
99 _("Could not read perf-bias value[%d]\n"), ret
);
102 printf(_("perf-bias: %d\n"), ret
);