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authorThomas Renninger <trenn@suse.de>2009-07-24 15:25:05 +0200
committerDave Jones <davej@redhat.com>2009-09-01 12:45:14 -0400
commit8aa84ad8d6c740a04386f599694609ee4998e82e (patch)
treeb5bedf4203f038c0f624d3240d9d23dbc9e20e63 /drivers/cpufreq/cpufreq.c
parent4bfa042cd304aa48cf05cd0a13c2d0794a675c0e (diff)
[CPUFREQ] Introduce global, not per core: /sys/devices/system/cpu/cpufreq
Currently everything in the cpufreq layer is per core based. This does not reflect reality, for example ondemand on conservative governors have global sysfs variables. Introduce a global cpufreq directory and add the kobject to the governor struct, so that governors can easily access it. The directory is initialized in the cpufreq_core_init initcall and thus will always be created if cpufreq is compiled in, even if no cpufreq driver is active later. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r--drivers/cpufreq/cpufreq.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index bbd5c2164ab..4da28444b23 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -686,6 +686,9 @@ static struct attribute *default_attrs[] = {
NULL
};
+struct kobject *cpufreq_global_kobject;
+EXPORT_SYMBOL(cpufreq_global_kobject);
+
#define to_policy(k) container_of(k, struct cpufreq_policy, kobj)
#define to_attr(a) container_of(a, struct freq_attr, attr)
@@ -1935,7 +1938,11 @@ static int __init cpufreq_core_init(void)
per_cpu(policy_cpu, cpu) = -1;
init_rwsem(&per_cpu(cpu_policy_rwsem, cpu));
}
+
+ cpufreq_global_kobject = kobject_create_and_add("cpufreq",
+ &cpu_sysdev_class.kset.kobj);
+ BUG_ON(!cpufreq_global_kobject);
+
return 0;
}
-
core_initcall(cpufreq_core_init);