From 44139ed4943ee8ec186eea3e9072ca16d2b48133 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 29 Jul 2015 16:23:09 +0530 Subject: cpufreq: Allow drivers to enable boost support after registering driver In some cases it wouldn't be known at time of driver registration, if the driver needs to support boost frequencies. For example, while getting boost information from DT with opp-v2 bindings, we need to parse the bindings for all the CPUs to know if turbo/boost OPPs are supported or not. One way out to do that efficiently is to delay supporting boost mode (i.e. creating /sys/devices/system/cpu/cpufreq/boost file), until the time OPP bindings are parsed. At that point, the driver can enable boost support. This can be done at ->init(), where the frequency table is created. To do that, the driver requires few APIs from cpufreq core that let him do this. This patch provides these APIs. Signed-off-by: Viresh Kumar Reviewed-by: Stephen Boyd Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux/cpufreq.h') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index bde1e567b3a9..95f018649abf 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -578,6 +578,8 @@ ssize_t cpufreq_show_cpus(const struct cpumask *mask, char *buf); int cpufreq_boost_trigger_state(int state); int cpufreq_boost_supported(void); int cpufreq_boost_enabled(void); +int cpufreq_enable_boost_support(void); +bool policy_has_boost_freq(struct cpufreq_policy *policy); #else static inline int cpufreq_boost_trigger_state(int state) { @@ -591,6 +593,16 @@ static inline int cpufreq_boost_enabled(void) { return 0; } + +static inline int cpufreq_enable_boost_support(void) +{ + return -EINVAL; +} + +static inline bool policy_has_boost_freq(struct cpufreq_policy *policy) +{ + return false; +} #endif /* the following funtion is for cpufreq core use only */ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu); -- cgit v1.2.3 From 21c36d35711d24a7689b7fb9606ce78f3b4c3d3b Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 7 Aug 2015 13:59:16 +0200 Subject: cpufreq-dt: make scaling_boost_freqs sysfs attr available when boost is enabled Make scaling_boost_freqs sysfs attribute is available when cpufreq-dt driver is used and boost support is enabled. Suggested-by: Viresh Kumar Acked-by: Viresh Kumar Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/cpufreq.h') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 95f018649abf..657542d3e23b 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -609,6 +609,7 @@ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu); /* the following are really really optional */ extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs; +extern struct freq_attr cpufreq_freq_attr_scaling_boost_freqs; extern struct freq_attr *cpufreq_generic_attr[]; int cpufreq_table_validate_and_show(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table); -- cgit v1.2.3 From 6bfb7c7434f75d29241413dc7e784295ba56de98 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 3 Aug 2015 08:36:14 +0530 Subject: cpufreq: remove redundant CPUFREQ_INCOMPATIBLE notifier event What's being done from CPUFREQ_INCOMPATIBLE, can also be done with CPUFREQ_ADJUST. There is nothing special with CPUFREQ_INCOMPATIBLE notifier. Kill CPUFREQ_INCOMPATIBLE and fix its usage sites. This also updates the numbering of notifier events to remove holes. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'include/linux/cpufreq.h') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index bde1e567b3a9..bedcc90c0757 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -369,11 +369,10 @@ static inline void cpufreq_resume(void) {} /* Policy Notifiers */ #define CPUFREQ_ADJUST (0) -#define CPUFREQ_INCOMPATIBLE (1) -#define CPUFREQ_NOTIFY (2) -#define CPUFREQ_START (3) -#define CPUFREQ_CREATE_POLICY (4) -#define CPUFREQ_REMOVE_POLICY (5) +#define CPUFREQ_NOTIFY (1) +#define CPUFREQ_START (2) +#define CPUFREQ_CREATE_POLICY (3) +#define CPUFREQ_REMOVE_POLICY (4) #ifdef CONFIG_CPU_FREQ int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list); -- cgit v1.2.3 From e27f8bd248756310a6df8b67f96d41d5a693642c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 3 Aug 2015 08:36:17 +0530 Subject: cpufreq: remove redundant 'governor' field from user_policy Its always same as policy->governor, and there is no need to keep another copy of it. Remove it. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux/cpufreq.h') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index bedcc90c0757..752bf8a5c314 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -55,7 +55,6 @@ struct cpufreq_real_policy { unsigned int min; /* in kHz */ unsigned int max; /* in kHz */ unsigned int policy; /* see above */ - struct cpufreq_governor *governor; /* see below */ }; struct cpufreq_policy { -- cgit v1.2.3 From 88dc4384958759510db248bf9158434ac783d407 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 3 Aug 2015 08:36:18 +0530 Subject: cpufreq: remove redundant 'policy' field from user_policy Its always same as policy->policy, and there is no need to keep another copy of it. Remove it. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux/cpufreq.h') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 752bf8a5c314..54dbbff0a55e 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -54,7 +54,6 @@ struct cpufreq_cpuinfo { struct cpufreq_real_policy { unsigned int min; /* in kHz */ unsigned int max; /* in kHz */ - unsigned int policy; /* see above */ }; struct cpufreq_policy { -- cgit v1.2.3 From c7a7b418dd1991079dd7ef03fec7d1863ef96154 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 3 Aug 2015 08:36:19 +0530 Subject: cpufreq: rename cpufreq_real_policy as cpufreq_user_policy Its all about caching min/max freq requested by userspace, and the name 'cpufreq_real_policy' doesn't fit that well. Rename it to cpufreq_user_policy. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux/cpufreq.h') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 54dbbff0a55e..6ff6a4d95eea 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -51,7 +51,7 @@ struct cpufreq_cpuinfo { unsigned int transition_latency; }; -struct cpufreq_real_policy { +struct cpufreq_user_policy { unsigned int min; /* in kHz */ unsigned int max; /* in kHz */ }; @@ -86,7 +86,7 @@ struct cpufreq_policy { struct work_struct update; /* if update_policy() needs to be * called, but you're in IRQ context */ - struct cpufreq_real_policy user_policy; + struct cpufreq_user_policy user_policy; struct cpufreq_frequency_table *freq_table; struct list_head policy_list; -- cgit v1.2.3