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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-15 08:46:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-15 08:46:44 -0700
commitbfbfbf7368627860dd769567599d73ad8f6d8191 (patch)
tree0db55522cfa41fa95fa236c7074753dfc6c7e2e8 /arch/sparc/kernel/time_64.c
parent88f76bc31b93cc228f5a43d5b565dc53615970ae (diff)
parent2a8d69f6139b605b2e36c80540cb8e8da2d016be (diff)
download96b-common-bfbfbf7368627860dd769567599d73ad8f6d8191.tar.gz
Merge tag 'pm-5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki: "These fix a recent regression causing kernels built with CONFIG_PM unset to crash on systems that support the Performance and Energy Bias Hint (EPB), clean up the cpufreq core and some users of transition notifiers and introduce a new power domain flag into the generic power domains framework (genpd). Specifics: - Fix recent regression causing kernels built with CONFIG_PM unset to crash on systems that support the Performance and Energy Bias Hint (EPB) by avoiding to compile the EPB-related code depending on CONFIG_PM when it is unset (Rafael Wysocki). - Clean up the transition notifier invocation code in the cpufreq core and change some users of cpufreq transition notifiers accordingly (Viresh Kumar). - Change MAINTAINERS to cover the schedutil governor as part of cpufreq (Viresh Kumar). - Simplify cpufreq_init_policy() to avoid redundant computations (Yue Hu). - Add explanatory comment to the cpufreq core (Rafael Wysocki). - Introduce a new flag, GENPD_FLAG_RPM_ALWAYS_ON, to the generic power domains (genpd) framework along with the first user of it (Leonard Crestez)" * tag 'pm-5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: soc: imx: gpc: Use GENPD_FLAG_RPM_ALWAYS_ON for ERR009619 PM / Domains: Add GENPD_FLAG_RPM_ALWAYS_ON flag cpufreq: Update MAINTAINERS to include schedutil governor cpufreq: Don't find governor for setpolicy drivers in cpufreq_init_policy() cpufreq: Explain the kobject_put() in cpufreq_policy_alloc() cpufreq: Call transition notifier only once for each policy x86: intel_epb: Take CONFIG_PM into account
Diffstat (limited to 'arch/sparc/kernel/time_64.c')
-rw-r--r--arch/sparc/kernel/time_64.c28
1 files changed, 16 insertions, 12 deletions
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 3eb77943ce12..89fb05f90609 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -653,19 +653,23 @@ static int sparc64_cpufreq_notifier(struct notifier_block *nb, unsigned long val
void *data)
{
struct cpufreq_freqs *freq = data;
- unsigned int cpu = freq->cpu;
- struct freq_table *ft = &per_cpu(sparc64_freq_table, cpu);
+ unsigned int cpu;
+ struct freq_table *ft;
- if (!ft->ref_freq) {
- ft->ref_freq = freq->old;
- ft->clock_tick_ref = cpu_data(cpu).clock_tick;
- }
- if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
- (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
- cpu_data(cpu).clock_tick =
- cpufreq_scale(ft->clock_tick_ref,
- ft->ref_freq,
- freq->new);
+ for_each_cpu(cpu, freq->policy->cpus) {
+ ft = &per_cpu(sparc64_freq_table, cpu);
+
+ if (!ft->ref_freq) {
+ ft->ref_freq = freq->old;
+ ft->clock_tick_ref = cpu_data(cpu).clock_tick;
+ }
+
+ if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
+ (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
+ cpu_data(cpu).clock_tick =
+ cpufreq_scale(ft->clock_tick_ref, ft->ref_freq,
+ freq->new);
+ }
}
return 0;