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cpufreq: interactive: add touch boost and init some param on rockchip platform
Change-Id: Iebc2edaedbeeb5a3a758b963230b5f95136b2af6 Signed-off-by: Chen Liang <cl@rock-chips.com>
This commit is contained in:
Chen Liang
Huang, Tao
parent
5d9ccf47ca
commit
0d162fd338
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@ -19,6 +19,9 @@
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#include <linux/cpu.h>
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#include <linux/cpumask.h>
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#include <linux/cpufreq.h>
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#ifdef CONFIG_ARCH_ROCKCHIP
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#include <linux/input.h>
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#endif
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/rwsem.h>
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@ -106,6 +109,14 @@ struct cpufreq_interactive_tunables {
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int boostpulse_duration_val;
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/* End time of boost pulse in ktime converted to usecs */
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u64 boostpulse_endtime;
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#ifdef CONFIG_ARCH_ROCKCHIP
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/* Frequency to which a touch boost takes the cpus to */
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unsigned long touchboost_freq;
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/* Duration of a touchboost pulse in usecs */
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int touchboostpulse_duration_val;
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/* End time of touchboost pulse in ktime converted to usecs */
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u64 touchboostpulse_endtime;
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#endif
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bool boosted;
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/*
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* Max additional time to wait in idle, beyond timer_rate, at speeds
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@ -383,7 +394,12 @@ static void cpufreq_interactive_timer(unsigned long data)
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pcpu->policy->cur < tunables->hispeed_freq)
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new_freq = tunables->hispeed_freq;
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}
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#ifdef CONFIG_ARCH_ROCKCHIP
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if ((now < tunables->touchboostpulse_endtime) &&
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(new_freq < tunables->touchboost_freq)) {
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new_freq = tunables->touchboost_freq;
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}
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#endif
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if (pcpu->policy->cur >= tunables->hispeed_freq &&
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new_freq > pcpu->policy->cur &&
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now - pcpu->pol_hispeed_val_time <
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@ -1133,6 +1149,147 @@ static struct notifier_block cpufreq_interactive_idle_nb = {
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.notifier_call = cpufreq_interactive_idle_notifier,
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};
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#ifdef CONFIG_ARCH_ROCKCHIP
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static void cpufreq_interactive_input_event(struct input_handle *handle,
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unsigned int type,
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unsigned int code,
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int value)
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{
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u64 now, endtime;
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int i;
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int anyboost = 0;
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unsigned long flags[2];
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struct cpufreq_interactive_cpuinfo *pcpu;
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struct cpufreq_interactive_tunables *tunables;
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if ((type != EV_ABS) && (type != EV_KEY))
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return;
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trace_cpufreq_interactive_boost("touch");
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spin_lock_irqsave(&speedchange_cpumask_lock, flags[0]);
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now = ktime_to_us(ktime_get());
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for_each_online_cpu(i) {
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pcpu = &per_cpu(cpuinfo, i);
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if (have_governor_per_policy())
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tunables = pcpu->policy->governor_data;
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else
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tunables = common_tunables;
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if (!tunables)
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continue;
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endtime = now + tunables->touchboostpulse_duration_val;
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if (endtime < (tunables->touchboostpulse_endtime +
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10 * USEC_PER_MSEC))
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continue;
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tunables->touchboostpulse_endtime = endtime;
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spin_lock_irqsave(&pcpu->target_freq_lock, flags[1]);
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if (pcpu->target_freq < tunables->touchboost_freq) {
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pcpu->target_freq = tunables->touchboost_freq;
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cpumask_set_cpu(i, &speedchange_cpumask);
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pcpu->loc_hispeed_val_time =
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ktime_to_us(ktime_get());
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anyboost = 1;
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}
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pcpu->floor_freq = tunables->touchboost_freq;
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pcpu->loc_floor_val_time = ktime_to_us(ktime_get());
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spin_unlock_irqrestore(&pcpu->target_freq_lock, flags[1]);
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}
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spin_unlock_irqrestore(&speedchange_cpumask_lock, flags[0]);
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if (anyboost)
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wake_up_process(speedchange_task);
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}
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static int cpufreq_interactive_input_connect(struct input_handler *handler,
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struct input_dev *dev,
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const struct input_device_id *id)
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{
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struct input_handle *handle;
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int error;
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handle = kzalloc(sizeof(*handle), GFP_KERNEL);
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if (!handle)
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return -ENOMEM;
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handle->dev = dev;
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handle->handler = handler;
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handle->name = "cpufreq";
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error = input_register_handle(handle);
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if (error)
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goto err2;
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error = input_open_device(handle);
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if (error)
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goto err1;
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return 0;
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err1:
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input_unregister_handle(handle);
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err2:
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kfree(handle);
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return error;
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}
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static void cpufreq_interactive_input_disconnect(struct input_handle *handle)
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{
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input_close_device(handle);
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input_unregister_handle(handle);
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kfree(handle);
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}
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static const struct input_device_id cpufreq_interactive_ids[] = {
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{
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.flags = INPUT_DEVICE_ID_MATCH_EVBIT |
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INPUT_DEVICE_ID_MATCH_ABSBIT,
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.evbit = { BIT_MASK(EV_ABS) },
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.absbit = { [BIT_WORD(ABS_MT_POSITION_X)] =
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BIT_MASK(ABS_MT_POSITION_X) |
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BIT_MASK(ABS_MT_POSITION_Y) },
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},
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{
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.flags = INPUT_DEVICE_ID_MATCH_KEYBIT |
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INPUT_DEVICE_ID_MATCH_ABSBIT,
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.keybit = { [BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH) },
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.absbit = { [BIT_WORD(ABS_X)] =
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BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) },
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},
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{
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.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
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.evbit = { BIT_MASK(EV_KEY) },
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},
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{ },
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};
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static struct input_handler cpufreq_interactive_input_handler = {
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.event = cpufreq_interactive_input_event,
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.connect = cpufreq_interactive_input_connect,
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.disconnect = cpufreq_interactive_input_disconnect,
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.name = "cpufreq_interactive",
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.id_table = cpufreq_interactive_ids,
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};
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static void rockchip_cpufreq_policy_init(struct cpufreq_policy *policy)
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{
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struct cpufreq_interactive_tunables *tunables = policy->governor_data;
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tunables->min_sample_time = 40 * USEC_PER_MSEC;
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tunables->boostpulse_duration_val = 40 * USEC_PER_MSEC;
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if (policy->cpu == 0) {
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tunables->hispeed_freq = 1008000;
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tunables->touchboostpulse_duration_val = 500 * USEC_PER_MSEC;
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tunables->touchboost_freq = 1200000;
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} else {
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tunables->hispeed_freq = 816000;
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}
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}
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#endif
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static int cpufreq_governor_interactive(struct cpufreq_policy *policy,
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unsigned int event)
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{
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@ -1186,6 +1343,10 @@ static int cpufreq_governor_interactive(struct cpufreq_policy *policy,
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common_tunables = tunables;
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}
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#ifdef CONFIG_ARCH_ROCKCHIP
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rockchip_cpufreq_policy_init(policy);
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#endif
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rc = sysfs_create_group(get_governor_parent_kobj(policy),
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get_sysfs_attr());
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if (rc) {
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@ -1201,6 +1362,10 @@ static int cpufreq_governor_interactive(struct cpufreq_policy *policy,
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idle_notifier_register(&cpufreq_interactive_idle_nb);
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cpufreq_register_notifier(&cpufreq_notifier_block,
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CPUFREQ_TRANSITION_NOTIFIER);
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#ifdef CONFIG_ARCH_ROCKCHIP
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rc = input_register_handler(&cpufreq_interactive_input_handler);
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#endif
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}
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break;
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@ -1208,6 +1373,9 @@ static int cpufreq_governor_interactive(struct cpufreq_policy *policy,
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case CPUFREQ_GOV_POLICY_EXIT:
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if (!--tunables->usage_count) {
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if (policy->governor->initialized == 1) {
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#ifdef CONFIG_ARCH_ROCKCHIP
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input_unregister_handler(&cpufreq_interactive_input_handler);
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#endif
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cpufreq_unregister_notifier(&cpufreq_notifier_block,
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CPUFREQ_TRANSITION_NOTIFIER);
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idle_notifier_unregister(&cpufreq_interactive_idle_nb);
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