From: Chen Liang Date: Fri, 2 Sep 2016 08:03:52 +0000 (+0800) Subject: cpufreq: interactive: add touch boost and init some param on rockchip platform X-Git-Tag: firefly_0821_release~1597 X-Git-Url: http://plrg.eecs.uci.edu/git/?p=firefly-linux-kernel-4.4.55.git;a=commitdiff_plain;h=0d162fd338537952190c6447a42c8331516ebdc6 cpufreq: interactive: add touch boost and init some param on rockchip platform Change-Id: Iebc2edaedbeeb5a3a758b963230b5f95136b2af6 Signed-off-by: Chen Liang --- diff --git a/drivers/cpufreq/cpufreq_interactive.c b/drivers/cpufreq/cpufreq_interactive.c index f2929e628820..d9927f92ea8b 100644 --- a/drivers/cpufreq/cpufreq_interactive.c +++ b/drivers/cpufreq/cpufreq_interactive.c @@ -19,6 +19,9 @@ #include #include #include +#ifdef CONFIG_ARCH_ROCKCHIP +#include +#endif #include #include #include @@ -106,6 +109,14 @@ struct cpufreq_interactive_tunables { int boostpulse_duration_val; /* End time of boost pulse in ktime converted to usecs */ u64 boostpulse_endtime; +#ifdef CONFIG_ARCH_ROCKCHIP + /* Frequency to which a touch boost takes the cpus to */ + unsigned long touchboost_freq; + /* Duration of a touchboost pulse in usecs */ + int touchboostpulse_duration_val; + /* End time of touchboost pulse in ktime converted to usecs */ + u64 touchboostpulse_endtime; +#endif bool boosted; /* * Max additional time to wait in idle, beyond timer_rate, at speeds @@ -383,7 +394,12 @@ static void cpufreq_interactive_timer(unsigned long data) pcpu->policy->cur < tunables->hispeed_freq) new_freq = tunables->hispeed_freq; } - +#ifdef CONFIG_ARCH_ROCKCHIP + if ((now < tunables->touchboostpulse_endtime) && + (new_freq < tunables->touchboost_freq)) { + new_freq = tunables->touchboost_freq; + } +#endif if (pcpu->policy->cur >= tunables->hispeed_freq && new_freq > pcpu->policy->cur && now - pcpu->pol_hispeed_val_time < @@ -1133,6 +1149,147 @@ static struct notifier_block cpufreq_interactive_idle_nb = { .notifier_call = cpufreq_interactive_idle_notifier, }; +#ifdef CONFIG_ARCH_ROCKCHIP +static void cpufreq_interactive_input_event(struct input_handle *handle, + unsigned int type, + unsigned int code, + int value) +{ + u64 now, endtime; + int i; + int anyboost = 0; + unsigned long flags[2]; + struct cpufreq_interactive_cpuinfo *pcpu; + struct cpufreq_interactive_tunables *tunables; + + if ((type != EV_ABS) && (type != EV_KEY)) + return; + + trace_cpufreq_interactive_boost("touch"); + spin_lock_irqsave(&speedchange_cpumask_lock, flags[0]); + + now = ktime_to_us(ktime_get()); + for_each_online_cpu(i) { + pcpu = &per_cpu(cpuinfo, i); + if (have_governor_per_policy()) + tunables = pcpu->policy->governor_data; + else + tunables = common_tunables; + if (!tunables) + continue; + + endtime = now + tunables->touchboostpulse_duration_val; + if (endtime < (tunables->touchboostpulse_endtime + + 10 * USEC_PER_MSEC)) + continue; + tunables->touchboostpulse_endtime = endtime; + + spin_lock_irqsave(&pcpu->target_freq_lock, flags[1]); + if (pcpu->target_freq < tunables->touchboost_freq) { + pcpu->target_freq = tunables->touchboost_freq; + cpumask_set_cpu(i, &speedchange_cpumask); + pcpu->loc_hispeed_val_time = + ktime_to_us(ktime_get()); + anyboost = 1; + } + + pcpu->floor_freq = tunables->touchboost_freq; + pcpu->loc_floor_val_time = ktime_to_us(ktime_get()); + + spin_unlock_irqrestore(&pcpu->target_freq_lock, flags[1]); + } + + spin_unlock_irqrestore(&speedchange_cpumask_lock, flags[0]); + + if (anyboost) + wake_up_process(speedchange_task); +} + +static int cpufreq_interactive_input_connect(struct input_handler *handler, + struct input_dev *dev, + const struct input_device_id *id) +{ + struct input_handle *handle; + int error; + + handle = kzalloc(sizeof(*handle), GFP_KERNEL); + if (!handle) + return -ENOMEM; + + handle->dev = dev; + handle->handler = handler; + handle->name = "cpufreq"; + + error = input_register_handle(handle); + if (error) + goto err2; + + error = input_open_device(handle); + if (error) + goto err1; + + return 0; +err1: + input_unregister_handle(handle); +err2: + kfree(handle); + return error; +} + +static void cpufreq_interactive_input_disconnect(struct input_handle *handle) +{ + input_close_device(handle); + input_unregister_handle(handle); + kfree(handle); +} + +static const struct input_device_id cpufreq_interactive_ids[] = { + { + .flags = INPUT_DEVICE_ID_MATCH_EVBIT | + INPUT_DEVICE_ID_MATCH_ABSBIT, + .evbit = { BIT_MASK(EV_ABS) }, + .absbit = { [BIT_WORD(ABS_MT_POSITION_X)] = + BIT_MASK(ABS_MT_POSITION_X) | + BIT_MASK(ABS_MT_POSITION_Y) }, + }, + { + .flags = INPUT_DEVICE_ID_MATCH_KEYBIT | + INPUT_DEVICE_ID_MATCH_ABSBIT, + .keybit = { [BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH) }, + .absbit = { [BIT_WORD(ABS_X)] = + BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) }, + }, + { + .flags = INPUT_DEVICE_ID_MATCH_EVBIT, + .evbit = { BIT_MASK(EV_KEY) }, + }, + { }, +}; + +static struct input_handler cpufreq_interactive_input_handler = { + .event = cpufreq_interactive_input_event, + .connect = cpufreq_interactive_input_connect, + .disconnect = cpufreq_interactive_input_disconnect, + .name = "cpufreq_interactive", + .id_table = cpufreq_interactive_ids, +}; + +static void rockchip_cpufreq_policy_init(struct cpufreq_policy *policy) +{ + struct cpufreq_interactive_tunables *tunables = policy->governor_data; + + tunables->min_sample_time = 40 * USEC_PER_MSEC; + tunables->boostpulse_duration_val = 40 * USEC_PER_MSEC; + if (policy->cpu == 0) { + tunables->hispeed_freq = 1008000; + tunables->touchboostpulse_duration_val = 500 * USEC_PER_MSEC; + tunables->touchboost_freq = 1200000; + } else { + tunables->hispeed_freq = 816000; + } +} +#endif + static int cpufreq_governor_interactive(struct cpufreq_policy *policy, unsigned int event) { @@ -1186,6 +1343,10 @@ static int cpufreq_governor_interactive(struct cpufreq_policy *policy, common_tunables = tunables; } +#ifdef CONFIG_ARCH_ROCKCHIP + rockchip_cpufreq_policy_init(policy); +#endif + rc = sysfs_create_group(get_governor_parent_kobj(policy), get_sysfs_attr()); if (rc) { @@ -1201,6 +1362,10 @@ static int cpufreq_governor_interactive(struct cpufreq_policy *policy, idle_notifier_register(&cpufreq_interactive_idle_nb); cpufreq_register_notifier(&cpufreq_notifier_block, CPUFREQ_TRANSITION_NOTIFIER); +#ifdef CONFIG_ARCH_ROCKCHIP + rc = input_register_handler(&cpufreq_interactive_input_handler); +#endif + } break; @@ -1208,6 +1373,9 @@ static int cpufreq_governor_interactive(struct cpufreq_policy *policy, case CPUFREQ_GOV_POLICY_EXIT: if (!--tunables->usage_count) { if (policy->governor->initialized == 1) { +#ifdef CONFIG_ARCH_ROCKCHIP + input_unregister_handler(&cpufreq_interactive_input_handler); +#endif cpufreq_unregister_notifier(&cpufreq_notifier_block, CPUFREQ_TRANSITION_NOTIFIER); idle_notifier_unregister(&cpufreq_interactive_idle_nb);