cpupower: Introduce idle-set subcommand and C-state enabling/disabling
Example:
cpupower idle-set -d 3
will disable C-state 3 on all processors (set commands are active on
all CPUs by default), same as:
cpupower -c all idle-set -d 3
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/tools/power/cpupower/utils/cpuidle-info.c b/tools/power/cpupower/utils/cpuidle-info.c
index edd5dba..75e66de 100644
--- a/tools/power/cpupower/utils/cpuidle-info.c
+++ b/tools/power/cpupower/utils/cpuidle-info.c
@@ -48,10 +48,14 @@
return;
for (idlestate = 0; idlestate < idlestates; idlestate++) {
+ int disabled = sysfs_is_idlestate_disabled(cpu, idlestate);
+ /* Disabled interface not supported on older kernels */
+ if (disabled < 0)
+ disabled = 0;
tmp = sysfs_get_idlestate_name(cpu, idlestate);
if (!tmp)
continue;
- printf("%s:\n", tmp);
+ printf("%s%s:\n", tmp, (disabled) ? " (DISABLED) " : "");
free(tmp);
tmp = sysfs_get_idlestate_desc(cpu, idlestate);