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Diffstat (limited to 'include/linux/cpufreq.h')
-rw-r--r--include/linux/cpufreq.h48
1 files changed, 26 insertions, 22 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index c86d6d8bdfed..b160e98076e3 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -151,6 +151,9 @@ struct cpufreq_policy {
/* For cpufreq driver's internal use */
void *driver_data;
+
+ /* Pointer to the cooling device if used for thermal mitigation */
+ struct thermal_cooling_device *cdev;
};
/* Only for ACPI */
@@ -254,20 +257,12 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
static struct freq_attr _name = \
__ATTR(_name, 0200, NULL, store_##_name)
-struct global_attr {
- struct attribute attr;
- ssize_t (*show)(struct kobject *kobj,
- struct attribute *attr, char *buf);
- ssize_t (*store)(struct kobject *a, struct attribute *b,
- const char *c, size_t count);
-};
-
#define define_one_global_ro(_name) \
-static struct global_attr _name = \
+static struct kobj_attribute _name = \
__ATTR(_name, 0444, show_##_name, NULL)
#define define_one_global_rw(_name) \
-static struct global_attr _name = \
+static struct kobj_attribute _name = \
__ATTR(_name, 0644, show_##_name, store_##_name)
@@ -330,6 +325,8 @@ struct cpufreq_driver {
/* optional */
int (*bios_limit)(int cpu, unsigned int *limit);
+ int (*online)(struct cpufreq_policy *policy);
+ int (*offline)(struct cpufreq_policy *policy);
int (*exit)(struct cpufreq_policy *policy);
void (*stop_cpu)(struct cpufreq_policy *policy);
int (*suspend)(struct cpufreq_policy *policy);
@@ -346,14 +343,15 @@ struct cpufreq_driver {
};
/* flags */
-#define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
- all ->init() calls failed */
-#define CPUFREQ_CONST_LOOPS (1 << 1) /* loops_per_jiffy or other
- kernel "constants" aren't
- affected by frequency
- transitions */
-#define CPUFREQ_PM_NO_WARN (1 << 2) /* don't warn on suspend/resume
- speed mismatches */
+
+/* driver isn't removed even if all ->init() calls failed */
+#define CPUFREQ_STICKY BIT(0)
+
+/* loops_per_jiffy or other kernel "constants" aren't affected by frequency transitions */
+#define CPUFREQ_CONST_LOOPS BIT(1)
+
+/* don't warn on suspend/resume speed mismatches */
+#define CPUFREQ_PM_NO_WARN BIT(2)
/*
* This should be set by platforms having multiple clock-domains, i.e.
@@ -361,14 +359,14 @@ struct cpufreq_driver {
* be created in cpu/cpu<num>/cpufreq/ directory and so they can use the same
* governor with different tunables for different clusters.
*/
-#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3)
+#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY BIT(3)
/*
* Driver will do POSTCHANGE notifications from outside of their ->target()
* routine and so must set cpufreq_driver->flags with this flag, so that core
* can handle them specially.
*/
-#define CPUFREQ_ASYNC_NOTIFICATION (1 << 4)
+#define CPUFREQ_ASYNC_NOTIFICATION BIT(4)
/*
* Set by drivers which want cpufreq core to check if CPU is running at a
@@ -377,13 +375,19 @@ struct cpufreq_driver {
* from the table. And if that fails, we will stop further boot process by
* issuing a BUG_ON().
*/
-#define CPUFREQ_NEED_INITIAL_FREQ_CHECK (1 << 5)
+#define CPUFREQ_NEED_INITIAL_FREQ_CHECK BIT(5)
/*
* Set by drivers to disallow use of governors with "dynamic_switching" flag
* set.
*/
-#define CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING (1 << 6)
+#define CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING BIT(6)
+
+/*
+ * Set by drivers that want the core to automatically register the cpufreq
+ * driver as a thermal cooling device.
+ */
+#define CPUFREQ_IS_COOLING_DEV BIT(7)
int cpufreq_register_driver(struct cpufreq_driver *driver_data);
int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);