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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-05-05 14:22:23 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-05-05 14:22:23 +0200
commit02678c08822f45246e5efa371c91c9e154e34e11 (patch)
tree4c6a422f7b3ff1f5b421787b197aa5a95ba0f670 /drivers/cpufreq
parentMerge tag 'cpufreq-arm-fixes-5.18-rc5' of git://git.kernel.org/pub/scm/linux/... (diff)
parentcpufreq: Fix possible race in cpufreq online error path (diff)
downloadlinux-02678c08822f45246e5efa371c91c9e154e34e11.tar.xz
linux-02678c08822f45246e5efa371c91c9e154e34e11.zip
Merge back earlier cpufreq changes for 5.19.
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/cpufreq.c5
-rw-r--r--drivers/cpufreq/cpufreq_governor.c20
-rw-r--r--drivers/cpufreq/cpufreq_governor.h1
-rw-r--r--drivers/cpufreq/intel_pstate.c1
-rw-r--r--drivers/cpufreq/pasemi-cpufreq.c1
-rw-r--r--drivers/cpufreq/pmac32-cpufreq.c2
-rw-r--r--drivers/cpufreq/pmac64-cpufreq.c2
-rw-r--r--drivers/cpufreq/ppc_cbe_cpufreq.c1
-rw-r--r--drivers/cpufreq/ppc_cbe_cpufreq_pmi.c2
9 files changed, 21 insertions, 14 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 80f535cc8a75..0d58b0f8f3af 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1533,8 +1533,6 @@ out_destroy_policy:
for_each_cpu(j, policy->real_cpus)
remove_cpu_dev_symlink(policy, get_cpu_device(j));
- up_write(&policy->rwsem);
-
out_offline_policy:
if (cpufreq_driver->offline)
cpufreq_driver->offline(policy);
@@ -1543,6 +1541,9 @@ out_exit_policy:
if (cpufreq_driver->exit)
cpufreq_driver->exit(policy);
+ cpumask_clear(policy->cpus);
+ up_write(&policy->rwsem);
+
out_free_policy:
cpufreq_policy_free(policy);
return ret;
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 0d42cf8b88d8..85da677c43d6 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -388,6 +388,15 @@ static void free_policy_dbs_info(struct policy_dbs_info *policy_dbs,
gov->free(policy_dbs);
}
+static void cpufreq_dbs_data_release(struct kobject *kobj)
+{
+ struct dbs_data *dbs_data = to_dbs_data(to_gov_attr_set(kobj));
+ struct dbs_governor *gov = dbs_data->gov;
+
+ gov->exit(dbs_data);
+ kfree(dbs_data);
+}
+
int cpufreq_dbs_governor_init(struct cpufreq_policy *policy)
{
struct dbs_governor *gov = dbs_governor_of(policy);
@@ -425,6 +434,7 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy)
goto free_policy_dbs_info;
}
+ dbs_data->gov = gov;
gov_attr_set_init(&dbs_data->attr_set, &policy_dbs->list);
ret = gov->init(dbs_data);
@@ -447,6 +457,7 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy)
policy->governor_data = policy_dbs;
gov->kobj_type.sysfs_ops = &governor_sysfs_ops;
+ gov->kobj_type.release = cpufreq_dbs_data_release;
ret = kobject_init_and_add(&dbs_data->attr_set.kobj, &gov->kobj_type,
get_governor_parent_kobj(policy),
"%s", gov->gov.name);
@@ -488,13 +499,8 @@ void cpufreq_dbs_governor_exit(struct cpufreq_policy *policy)
policy->governor_data = NULL;
- if (!count) {
- if (!have_governor_per_policy())
- gov->gdbs_data = NULL;
-
- gov->exit(dbs_data);
- kfree(dbs_data);
- }
+ if (!count && !have_governor_per_policy())
+ gov->gdbs_data = NULL;
free_policy_dbs_info(policy_dbs, gov);
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index a5a0bc3cc23e..168c23fd7fca 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -37,6 +37,7 @@ enum {OD_NORMAL_SAMPLE, OD_SUB_SAMPLE};
/* Governor demand based switching data (per-policy or global). */
struct dbs_data {
struct gov_attr_set attr_set;
+ struct dbs_governor *gov;
void *tuners;
unsigned int ignore_nice_load;
unsigned int sampling_rate;
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 846bb3a78788..2216b24b6f84 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1322,6 +1322,7 @@ static ssize_t store_no_turbo(struct kobject *a, struct kobj_attribute *b,
mutex_unlock(&intel_pstate_limits_lock);
intel_pstate_update_policies();
+ arch_set_max_freq_ratio(global.no_turbo);
mutex_unlock(&intel_pstate_driver_lock);
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 815645170c4d..039a66bbe1be 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -18,7 +18,6 @@
#include <asm/hw_irq.h>
#include <asm/io.h>
-#include <asm/prom.h>
#include <asm/time.h>
#include <asm/smp.h>
diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index 4f20c6a9108d..20f64a8b0a35 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -24,7 +24,7 @@
#include <linux/device.h>
#include <linux/hardirq.h>
#include <linux/of_device.h>
-#include <asm/prom.h>
+
#include <asm/machdep.h>
#include <asm/irq.h>
#include <asm/pmac_feature.h>
diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index d7542a106e6b..ba9c31d98bd6 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -22,7 +22,7 @@
#include <linux/completion.h>
#include <linux/mutex.h>
#include <linux/of_device.h>
-#include <asm/prom.h>
+
#include <asm/machdep.h>
#include <asm/irq.h>
#include <asm/sections.h>
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index c58abb4cca3a..e3313ce63b38 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -12,7 +12,6 @@
#include <linux/of_platform.h>
#include <asm/machdep.h>
-#include <asm/prom.h>
#include <asm/cell-regs.h>
#include "ppc_cbe_cpufreq.h"
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq_pmi.c b/drivers/cpufreq/ppc_cbe_cpufreq_pmi.c
index 037fe23bc6ed..4fba3637b115 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq_pmi.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq_pmi.c
@@ -13,9 +13,9 @@
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/pm_qos.h>
+#include <linux/slab.h>
#include <asm/processor.h>
-#include <asm/prom.h>
#include <asm/pmi.h>
#include <asm/cell-regs.h>