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authorLinus Torvalds <torvalds@linux-foundation.org>2017-04-14 09:16:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-04-14 09:16:23 -0700
commite16d8b6e1f8b67eda0a746a3b9ee7c37fc3b688b (patch)
treee998680184bf84c756b44870d328f72748e3e44e /drivers
parentMerge tag 'acpi-4.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm (diff)
parentMerge branches 'pm-cpufreq-fixes' and 'pm-tools-fixes' (diff)
downloadlinux-dev-e16d8b6e1f8b67eda0a746a3b9ee7c37fc3b688b.tar.xz
linux-dev-e16d8b6e1f8b67eda0a746a3b9ee7c37fc3b688b.zip
Merge tag 'pm-4.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki: "These fix a cpufreq core regression related to CPU online/offline and several issues in the turbostat and cpupower utilities. Specifics: - Allow CPUs to be put back online even if the cpufreq driver is unable to work with them (eg. due to missing information from platform firmware), which was the previous behavior expected by users, but changed in the 4.9 time frame (Chen Yu). - Fix a few minor issues in the turbostat utility, introduced mostly during the recent update of it (Len Brown, Doug Smythies). - Fix a cpupower utility bug causing it to report incorrect values for turbo frequencies in some cases (Ben Hutchings)" * tag 'pm-4.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores cpufreq: Bring CPUs up even if cpufreq_online() failed tools/power turbostat: update version number tools/power turbostat: fix impossibly large CPU%c1 value tools/power turbostat: turbostat.8 add missing column definitions tools/power turbostat: update HWP dump to decimal from hex tools/power turbostat: enable package THERM_INTERRUPT dump tools/power turbostat: show missing Core and GFX power on SKL and KBL tools/power turbostat: bugfix: GFXMHz column not changing
Diffstat (limited to 'drivers')
-rw-r--r--drivers/cpufreq/cpufreq.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index bc96d423781a..0e3f6496524d 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2398,6 +2398,20 @@ EXPORT_SYMBOL_GPL(cpufreq_boost_enabled);
*********************************************************************/
static enum cpuhp_state hp_online;
+static int cpuhp_cpufreq_online(unsigned int cpu)
+{
+ cpufreq_online(cpu);
+
+ return 0;
+}
+
+static int cpuhp_cpufreq_offline(unsigned int cpu)
+{
+ cpufreq_offline(cpu);
+
+ return 0;
+}
+
/**
* cpufreq_register_driver - register a CPU Frequency driver
* @driver_data: A struct cpufreq_driver containing the values#
@@ -2460,8 +2474,8 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
}
ret = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "cpufreq:online",
- cpufreq_online,
- cpufreq_offline);
+ cpuhp_cpufreq_online,
+ cpuhp_cpufreq_offline);
if (ret < 0)
goto err_if_unreg;
hp_online = ret;