diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/cpufreq/cpufreq_governor.h | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/cpufreq/cpufreq_governor.h')
-rw-r--r-- | kernel/drivers/cpufreq/cpufreq_governor.h | 57 |
1 files changed, 29 insertions, 28 deletions
diff --git a/kernel/drivers/cpufreq/cpufreq_governor.h b/kernel/drivers/cpufreq/cpufreq_governor.h index cc401d147..5621bb03e 100644 --- a/kernel/drivers/cpufreq/cpufreq_governor.h +++ b/kernel/drivers/cpufreq/cpufreq_governor.h @@ -109,7 +109,7 @@ store_one(_gov, file_name) /* create helper routines */ #define define_get_cpu_dbs_routines(_dbs_info) \ -static struct cpu_dbs_common_info *get_cpu_cdbs(int cpu) \ +static struct cpu_dbs_info *get_cpu_cdbs(int cpu) \ { \ return &per_cpu(_dbs_info, cpu).cdbs; \ } \ @@ -128,9 +128,20 @@ static void *get_cpu_dbs_info_s(int cpu) \ * cs_*: Conservative governor */ +/* Common to all CPUs of a policy */ +struct cpu_common_dbs_info { + struct cpufreq_policy *policy; + /* + * percpu mutex that serializes governor limit change with dbs_timer + * invocation. We do not want dbs_timer to run when user is changing + * the governor or limits. + */ + struct mutex timer_mutex; + ktime_t time_stamp; +}; + /* Per cpu structures */ -struct cpu_dbs_common_info { - int cpu; +struct cpu_dbs_info { u64 prev_cpu_idle; u64 prev_cpu_wall; u64 prev_cpu_nice; @@ -141,19 +152,12 @@ struct cpu_dbs_common_info { * wake-up from idle. */ unsigned int prev_load; - struct cpufreq_policy *cur_policy; - struct delayed_work work; - /* - * percpu mutex that serializes governor limit change with gov_dbs_timer - * invocation. We do not want gov_dbs_timer to run when user is changing - * the governor or limits. - */ - struct mutex timer_mutex; - ktime_t time_stamp; + struct delayed_work dwork; + struct cpu_common_dbs_info *shared; }; struct od_cpu_dbs_info_s { - struct cpu_dbs_common_info cdbs; + struct cpu_dbs_info cdbs; struct cpufreq_frequency_table *freq_table; unsigned int freq_lo; unsigned int freq_lo_jiffies; @@ -163,10 +167,9 @@ struct od_cpu_dbs_info_s { }; struct cs_cpu_dbs_info_s { - struct cpu_dbs_common_info cdbs; + struct cpu_dbs_info cdbs; unsigned int down_skip; unsigned int requested_freq; - unsigned int enable:1; }; /* Per policy Governors sysfs tunables */ @@ -204,15 +207,22 @@ struct common_dbs_data { */ struct dbs_data *gdbs_data; - struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu); + struct cpu_dbs_info *(*get_cpu_cdbs)(int cpu); void *(*get_cpu_dbs_info_s)(int cpu); - void (*gov_dbs_timer)(struct work_struct *work); + unsigned int (*gov_dbs_timer)(struct cpu_dbs_info *cdbs, + struct dbs_data *dbs_data, + bool modify_all); void (*gov_check_cpu)(int cpu, unsigned int load); - int (*init)(struct dbs_data *dbs_data); - void (*exit)(struct dbs_data *dbs_data); + int (*init)(struct dbs_data *dbs_data, bool notify); + void (*exit)(struct dbs_data *dbs_data, bool notify); /* Governor specific ops, see below */ void *gov_ops; + + /* + * Protects governor's data (struct dbs_data and struct common_dbs_data) + */ + struct mutex mutex; }; /* Governor Per policy data */ @@ -221,9 +231,6 @@ struct dbs_data { unsigned int min_sampling_rate; int usage_count; void *tuners; - - /* dbs_mutex protects dbs_enable in governor start/stop */ - struct mutex mutex; }; /* Governor specific ops, will be passed to dbs_data->gov_ops */ @@ -234,10 +241,6 @@ struct od_ops { void (*freq_increase)(struct cpufreq_policy *policy, unsigned int freq); }; -struct cs_ops { - struct notifier_block *notifier_block; -}; - static inline int delay_for_sampling_rate(unsigned int sampling_rate) { int delay = usecs_to_jiffies(sampling_rate); @@ -267,8 +270,6 @@ static ssize_t show_sampling_rate_min_gov_pol \ extern struct mutex cpufreq_governor_lock; void dbs_check_cpu(struct dbs_data *dbs_data, int cpu); -bool need_load_eval(struct cpu_dbs_common_info *cdbs, - unsigned int sampling_rate); int cpufreq_governor_dbs(struct cpufreq_policy *policy, struct common_dbs_data *cdata, unsigned int event); void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy, |