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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-14 13:12:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-14 13:12:32 -0700
commit4d25ec19669292a65a32498eabdabdd32b1a8747 (patch)
treec05bcadf3c4f24dedac48a3256add87a5af7655e /include
parent907afe5923b4f89b3c377e8ce3b495124321659c (diff)
parent5d72ed35678a351a1aed4b454c25d583f8bccb28 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui: - Improve thermal cpu_cooling interaction with cpufreq core. The cpu_cooling driver is designed to use CPU frequency scaling to avoid high thermal states for a platform. But it wasn't glued really well with cpufreq core. For example clipped-cpus is copied from the policy structure and its much better to use the policy->cpus (or related_cpus) fields directly as they may have got updated. Not that things were broken before this series, but they can be optimized a bit more. This series tries to improve interactions between cpufreq core and cpu_cooling driver and does some fixes/cleanups to the cpu_cooling driver. (Viresh Kumar) - A couple of fixes and cleanups in thermal core and imx, hisilicon, bcm_2835, int340x thermal drivers. (Arvind Yadav, Dan Carpenter, Sumeet Pawnikar, Srinivas Pandruvada, Willy WOLFF) * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (24 commits) thermal: bcm2835: fix an error code in probe() thermal: hisilicon: Handle return value of clk_prepare_enable thermal: imx: Handle return value of clk_prepare_enable thermal: int340x: check for sensor when PTYP is missing Thermal/int340x: Fix few typos and kernel-doc style thermal: fix source code documentation for parameters thermal: cpu_cooling: Replace kmalloc with kmalloc_array thermal: cpu_cooling: Rearrange struct cpufreq_cooling_device thermal: cpu_cooling: 'freq' can't be zero in cpufreq_state2power() thermal: cpu_cooling: don't store cpu_dev in cpufreq_cdev thermal: cpu_cooling: get_level() can't fail thermal: cpu_cooling: create structure for idle time stats thermal: cpu_cooling: merge frequency and power tables thermal: cpu_cooling: get rid of 'allowed_cpus' thermal: cpu_cooling: OPPs are registered for all CPUs thermal: cpu_cooling: store cpufreq policy cpufreq: create cpufreq_table_count_valid_entries() thermal: cpu_cooling: use cpufreq_policy to register cooling device thermal: cpu_cooling: get rid of a variable in cpufreq_set_cur_state() thermal: cpu_cooling: remove cpufreq_cooling_get_level() ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/cpu_cooling.h32
-rw-r--r--include/linux/cpufreq.h14
2 files changed, 28 insertions, 18 deletions
diff --git a/include/linux/cpu_cooling.h b/include/linux/cpu_cooling.h
index c156f5082758..d4292ebc5c8b 100644
--- a/include/linux/cpu_cooling.h
+++ b/include/linux/cpu_cooling.h
@@ -28,47 +28,49 @@
#include <linux/thermal.h>
#include <linux/cpumask.h>
+struct cpufreq_policy;
+
typedef int (*get_static_t)(cpumask_t *cpumask, int interval,
unsigned long voltage, u32 *power);
#ifdef CONFIG_CPU_THERMAL
/**
* cpufreq_cooling_register - function to create cpufreq cooling device.
- * @clip_cpus: cpumask of cpus where the frequency constraints will happen
+ * @policy: cpufreq policy.
*/
struct thermal_cooling_device *
-cpufreq_cooling_register(const struct cpumask *clip_cpus);
+cpufreq_cooling_register(struct cpufreq_policy *policy);
struct thermal_cooling_device *
-cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
+cpufreq_power_cooling_register(struct cpufreq_policy *policy,
u32 capacitance, get_static_t plat_static_func);
/**
* of_cpufreq_cooling_register - create cpufreq cooling device based on DT.
* @np: a valid struct device_node to the cooling device device tree node.
- * @clip_cpus: cpumask of cpus where the frequency constraints will happen
+ * @policy: cpufreq policy.
*/
#ifdef CONFIG_THERMAL_OF
struct thermal_cooling_device *
of_cpufreq_cooling_register(struct device_node *np,
- const struct cpumask *clip_cpus);
+ struct cpufreq_policy *policy);
struct thermal_cooling_device *
of_cpufreq_power_cooling_register(struct device_node *np,
- const struct cpumask *clip_cpus,
+ struct cpufreq_policy *policy,
u32 capacitance,
get_static_t plat_static_func);
#else
static inline struct thermal_cooling_device *
of_cpufreq_cooling_register(struct device_node *np,
- const struct cpumask *clip_cpus)
+ struct cpufreq_policy *policy)
{
return ERR_PTR(-ENOSYS);
}
static inline struct thermal_cooling_device *
of_cpufreq_power_cooling_register(struct device_node *np,
- const struct cpumask *clip_cpus,
+ struct cpufreq_policy *policy,
u32 capacitance,
get_static_t plat_static_func)
{
@@ -82,15 +84,14 @@ of_cpufreq_power_cooling_register(struct device_node *np,
*/
void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev);
-unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq);
#else /* !CONFIG_CPU_THERMAL */
static inline struct thermal_cooling_device *
-cpufreq_cooling_register(const struct cpumask *clip_cpus)
+cpufreq_cooling_register(struct cpufreq_policy *policy)
{
return ERR_PTR(-ENOSYS);
}
static inline struct thermal_cooling_device *
-cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
+cpufreq_power_cooling_register(struct cpufreq_policy *policy,
u32 capacitance, get_static_t plat_static_func)
{
return NULL;
@@ -98,14 +99,14 @@ cpufreq_power_cooling_register(const struct cpumask *clip_cpus,
static inline struct thermal_cooling_device *
of_cpufreq_cooling_register(struct device_node *np,
- const struct cpumask *clip_cpus)
+ struct cpufreq_policy *policy)
{
return ERR_PTR(-ENOSYS);
}
static inline struct thermal_cooling_device *
of_cpufreq_power_cooling_register(struct device_node *np,
- const struct cpumask *clip_cpus,
+ struct cpufreq_policy *policy,
u32 capacitance,
get_static_t plat_static_func)
{
@@ -117,11 +118,6 @@ void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
{
return;
}
-static inline
-unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq)
-{
- return THERMAL_CSTATE_INVALID;
-}
#endif /* CONFIG_CPU_THERMAL */
#endif /* __CPU_COOLING_H__ */
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 905117bd5012..f10a9b3761cd 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -862,6 +862,20 @@ static inline int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
return -EINVAL;
}
}
+
+static inline int cpufreq_table_count_valid_entries(const struct cpufreq_policy *policy)
+{
+ struct cpufreq_frequency_table *pos;
+ int count = 0;
+
+ if (unlikely(!policy->freq_table))
+ return 0;
+
+ cpufreq_for_each_valid_entry(pos, policy->freq_table)
+ count++;
+
+ return count;
+}
#else
static inline int cpufreq_boost_trigger_state(int state)
{