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msm_mpdecision.c
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msm_mpdecision.c
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/*
* arch/arm/mach-msm/msm_mpdecision.c
*
* This program features:
* -cpu auto-hotplug/unplug based on system load for MSM multicore cpus
* -single core while screen is off
* -extensive sysfs tuneables
* -deep integration with MSM-Thermal-X
*
* Copyright (c) 2012-2013, Dennis Rassmann <showp1984@gmail.com>
* Copyright (c) 2014-2015, Yusuf Mostafa <ymostafa30@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "msm_mpdecision.h"
#ifndef CONFIG_HAS_EARLYSUSPEND
#include <linux/lcd_notify.h>
#else
#include <linux/earlysuspend.h>
#endif
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/workqueue.h>
#include <linux/completion.h>
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <asm-generic/cputime.h>
#include <linux/hrtimer.h>
#include <linux/delay.h>
#include <linux/export.h>
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
#include <linux/input.h>
#include <linux/slab.h>
#endif
#include "acpuclock.h"
#define DEBUG 0
DEFINE_PER_CPU(struct msm_mpdec_cpudata_t, msm_mpdec_cpudata);
EXPORT_PER_CPU_SYMBOL_GPL(msm_mpdec_cpudata);
static bool mpdec_suspended = false;
#ifndef CONFIG_HAS_EARLYSUSPEND
static struct notifier_block msm_mpdec_lcd_notif;
#endif
static struct delayed_work msm_mpdec_work;
static struct workqueue_struct *msm_mpdec_workq;
static DEFINE_MUTEX(mpdec_msm_cpu_lock);
static DEFINE_MUTEX(mpdec_msm_susres_lock);
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
static struct workqueue_struct *mpdec_input_wq;
static DEFINE_PER_CPU(struct work_struct, mpdec_input_work);
static struct workqueue_struct *msm_mpdec_revib_workq;
static DEFINE_PER_CPU(struct delayed_work, msm_mpdec_revib_work);
#endif
static struct msm_mpdec_tuners {
unsigned int startdelay;
unsigned int delay;
unsigned int pause;
bool scroff_single_core;
unsigned long int idle_freq;
unsigned int max_cpus;
unsigned int min_cpus;
u64 last_input_time;
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
bool boost_enabled;
unsigned int boost_time;
unsigned long int boost_freq[4];
#endif
} msm_mpdec_tuners_ins = {
.startdelay = MSM_MPDEC_STARTDELAY,
.delay = MSM_MPDEC_DELAY,
.pause = MSM_MPDEC_PAUSE,
.scroff_single_core = true,
.idle_freq = MSM_MPDEC_IDLE_FREQ,
.max_cpus = CONFIG_NR_CPUS,
.min_cpus = 1,
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
.boost_enabled = true,
.boost_time = MSM_MPDEC_BOOSTTIME,
.boost_freq = {
MSM_MPDEC_BOOSTFREQ_CPU0,
MSM_MPDEC_BOOSTFREQ_CPU1,
MSM_MPDEC_BOOSTFREQ_CPU2,
MSM_MPDEC_BOOSTFREQ_CPU3
},
#endif
};
static u64 last_input_time;
static unsigned int NwNs_Threshold[8] = {12, 0, 25, 7, 30, 10, 0, 18};
static unsigned int TwTs_Threshold[8] = {140, 0, 140, 190, 140, 190, 0, 190};
extern unsigned int get_rq_info(void);
extern unsigned long acpuclk_get_rate(int);
unsigned int state = MSM_MPDEC_IDLE;
bool was_paused = false;
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
bool is_screen_on = true;
static int update_cpu_min_freq(struct cpufreq_policy *cpu_policy,
int cpu, int new_freq);
static void unboost_cpu(int cpu);
#endif
static cputime64_t mpdec_paused_until = 0;
static unsigned long get_rate(int cpu) {
return acpuclk_get_rate(cpu);
}
static int get_slowest_cpu(void) {
int i, cpu = 0;
unsigned long rate, slow_rate = 0;
for (i = 1; i < CONFIG_NR_CPUS; i++) {
if (!cpu_online(i))
continue;
rate = get_rate(i);
if (slow_rate == 0) {
cpu = i;
slow_rate = rate;
continue;
}
if ((rate <= slow_rate) && (slow_rate != 0)) {
cpu = i;
slow_rate = rate;
}
}
return cpu;
}
static unsigned long get_slowest_cpu_rate(void) {
int i = 0;
unsigned long rate, slow_rate = 0;
for (i = 0; i < CONFIG_NR_CPUS; i++) {
if (!cpu_online(i))
continue;
rate = get_rate(i);
if ((rate < slow_rate) && (slow_rate != 0)) {
slow_rate = rate;
continue;
}
if (slow_rate == 0) {
slow_rate = rate;
}
}
return slow_rate;
}
static void mpdec_cpu_up(int cpu) {
if (!cpu_online(cpu)) {
mutex_lock(&per_cpu(msm_mpdec_cpudata, cpu).hotplug_mutex);
cpu_up(cpu);
per_cpu(msm_mpdec_cpudata, cpu).on_time = ktime_to_ms(ktime_get());
per_cpu(msm_mpdec_cpudata, cpu).online = true;
per_cpu(msm_mpdec_cpudata, cpu).times_cpu_hotplugged += 1;
pr_info(MPDEC_TAG"CPU[%d] off->on | Mask=[%d%d%d%d]\n",
cpu, cpu_online(0), cpu_online(1), cpu_online(2), cpu_online(3));
mutex_unlock(&per_cpu(msm_mpdec_cpudata, cpu).hotplug_mutex);
}
}
EXPORT_SYMBOL_GPL(mpdec_cpu_up);
static void mpdec_cpu_down(int cpu) {
cputime64_t on_time = 0;
if (cpu_online(cpu)) {
mutex_lock(&per_cpu(msm_mpdec_cpudata, cpu).hotplug_mutex);
cpu_down(cpu);
on_time = (ktime_to_ms(ktime_get()) - per_cpu(msm_mpdec_cpudata, cpu).on_time);
per_cpu(msm_mpdec_cpudata, cpu).online = false;
per_cpu(msm_mpdec_cpudata, cpu).on_time_total += on_time;
per_cpu(msm_mpdec_cpudata, cpu).times_cpu_unplugged += 1;
pr_info(MPDEC_TAG"CPU[%d] on->off | Mask=[%d%d%d%d] | time online: %llu\n",
cpu, cpu_online(0), cpu_online(1), cpu_online(2), cpu_online(3), on_time);
mutex_unlock(&per_cpu(msm_mpdec_cpudata, cpu).hotplug_mutex);
}
}
EXPORT_SYMBOL_GPL(mpdec_cpu_down);
static int mp_decision(void) {
static bool first_call = true;
int new_state = MSM_MPDEC_IDLE;
int nr_cpu_online;
int index;
unsigned int rq_depth;
static cputime64_t total_time = 0;
static cputime64_t last_time;
cputime64_t current_time;
cputime64_t this_time = 0;
if (state == MSM_MPDEC_DISABLED)
return MSM_MPDEC_DISABLED;
current_time = ktime_to_ms(ktime_get());
if (first_call) {
first_call = false;
} else {
this_time = current_time - last_time;
}
total_time += this_time;
rq_depth = get_rq_info();
nr_cpu_online = num_online_cpus();
if (nr_cpu_online) {
index = (nr_cpu_online - 1) * 2;
if ((nr_cpu_online < CONFIG_NR_CPUS) && (rq_depth >= NwNs_Threshold[index])) {
if ((total_time >= TwTs_Threshold[index]) &&
(nr_cpu_online < msm_mpdec_tuners_ins.max_cpus)) {
new_state = MSM_MPDEC_UP;
if (get_slowest_cpu_rate() <= msm_mpdec_tuners_ins.idle_freq)
new_state = MSM_MPDEC_IDLE;
}
} else if ((nr_cpu_online > 1) && (rq_depth <= NwNs_Threshold[index+1])) {
if ((total_time >= TwTs_Threshold[index+1]) &&
(nr_cpu_online > msm_mpdec_tuners_ins.min_cpus)) {
new_state = MSM_MPDEC_DOWN;
if (get_slowest_cpu_rate() > msm_mpdec_tuners_ins.idle_freq)
new_state = MSM_MPDEC_IDLE;
}
} else {
new_state = MSM_MPDEC_IDLE;
total_time = 0;
}
} else {
total_time = 0;
}
if (new_state != MSM_MPDEC_IDLE) {
total_time = 0;
}
last_time = ktime_to_ms(ktime_get());
#if DEBUG
pr_info(MPDEC_TAG"[DEBUG] rq: %u, new_state: %i | Mask=[%d%d%d%d]\n",
rq_depth, new_state, cpu_online(0), cpu_online(1), cpu_online(2), cpu_online(3));
#endif
return new_state;
}
static void msm_mpdec_work_thread(struct work_struct *work) {
unsigned int cpu = nr_cpu_ids;
/* Check if we are paused */
if (mpdec_paused_until >= ktime_to_ms(ktime_get()))
goto out;
if (mpdec_suspended == true)
goto out;
if (!mutex_trylock(&mpdec_msm_cpu_lock))
goto out;
/* if sth messed with the cpus, update the check vars so we can proceed */
if (was_paused) {
for_each_possible_cpu(cpu) {
if (cpu_online(cpu))
per_cpu(msm_mpdec_cpudata, cpu).online = true;
else if (!cpu_online(cpu))
per_cpu(msm_mpdec_cpudata, cpu).online = false;
}
was_paused = false;
}
state = mp_decision();
switch (state) {
case MSM_MPDEC_DISABLED:
case MSM_MPDEC_IDLE:
break;
case MSM_MPDEC_DOWN:
cpu = get_slowest_cpu();
if (cpu < nr_cpu_ids) {
if ((per_cpu(msm_mpdec_cpudata, cpu).online == true) && (cpu_online(cpu))) {
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
unboost_cpu(cpu);
#endif
mpdec_cpu_down(cpu);
} else if (per_cpu(msm_mpdec_cpudata, cpu).online != cpu_online(cpu)) {
pr_info(MPDEC_TAG"CPU[%d] was controlled outside of mpdecision! | pausing [%d]ms\n",
cpu, msm_mpdec_tuners_ins.pause);
mpdec_paused_until = ktime_to_ms(ktime_get()) + msm_mpdec_tuners_ins.pause;
was_paused = true;
}
}
break;
case MSM_MPDEC_UP:
cpu = cpumask_next_zero(0, cpu_online_mask);
if (cpu < nr_cpu_ids) {
if ((per_cpu(msm_mpdec_cpudata, cpu).online == false) && (!cpu_online(cpu))) {
mpdec_cpu_up(cpu);
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
unboost_cpu(cpu);
#endif
} else if (per_cpu(msm_mpdec_cpudata, cpu).online != cpu_online(cpu)) {
pr_info(MPDEC_TAG"CPU[%d] was controlled outside of mpdecision! | pausing [%d]ms\n",
cpu, msm_mpdec_tuners_ins.pause);
mpdec_paused_until = ktime_to_ms(ktime_get()) + msm_mpdec_tuners_ins.pause;
was_paused = true;
}
}
break;
default:
pr_err(MPDEC_TAG"%s: invalid mpdec hotplug state %d\n",
__func__, state);
}
mutex_unlock(&mpdec_msm_cpu_lock);
out:
if (state != MSM_MPDEC_DISABLED)
queue_delayed_work(msm_mpdec_workq, &msm_mpdec_work,
msecs_to_jiffies(msm_mpdec_tuners_ins.delay));
return;
}
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
static int update_cpu_min_freq(struct cpufreq_policy *cpu_policy,
int cpu, int new_freq) {
int ret = 0;
if (!cpu_policy)
return -EINVAL;
cpufreq_verify_within_limits(cpu_policy, new_freq, cpu_policy->max);
cpu_policy->user_policy.min = new_freq;
ret = cpufreq_update_policy(cpu);
if (!ret) {
pr_debug(MPDEC_TAG"Touch event! Setting CPU%d min frequency to %d\n",
cpu, new_freq);
}
return ret;
}
static void unboost_cpu(int cpu) {
/* we don't use mpdec's cpu up/down funcs here to control offline, to be
* unboosted, cpus to avoid influencing mpdec's stats */
struct cpufreq_policy *cpu_policy = NULL;
bool cpu_mod = false;
if (per_cpu(msm_mpdec_cpudata, cpu).is_boosted) {
if (mutex_trylock(&per_cpu(msm_mpdec_cpudata, cpu).unboost_mutex)) {
if (!cpu_online(cpu)) {
pr_info(MPDEC_TAG"cpu%i is to be unboosted but offline! Hotplugging...", cpu);
cpu_up(cpu);
cpu_mod = true;
}
cpu_policy = cpufreq_cpu_get(cpu);
if (!cpu_policy) {
pr_debug(MPDEC_TAG"NULL policy on cpu %d\n", cpu);
if (cpu_mod) {
pr_info(MPDEC_TAG"cpu%i was modified. Restoring state...", cpu);
cpu_down(cpu);
}
return;
}
#if DEBUG
pr_info(MPDEC_TAG"un boosted cpu%i to %lu", cpu, per_cpu(msm_mpdec_cpudata, cpu).norm_min_freq);
#endif
per_cpu(msm_mpdec_cpudata, cpu).is_boosted = false;
per_cpu(msm_mpdec_cpudata, cpu).revib_wq_running = false;
if ((cpu_policy->min != per_cpu(msm_mpdec_cpudata, cpu).boost_freq) &&
(cpu_policy->min != per_cpu(msm_mpdec_cpudata, cpu).norm_min_freq)) {
pr_info(MPDEC_TAG"cpu%u min was changed while boosted (%lu->%u), using new min",
cpu, per_cpu(msm_mpdec_cpudata, cpu).norm_min_freq, cpu_policy->min);
per_cpu(msm_mpdec_cpudata, cpu).norm_min_freq = cpu_policy->min;
}
update_cpu_min_freq(cpu_policy, cpu, per_cpu(msm_mpdec_cpudata, cpu).norm_min_freq);
cpufreq_cpu_put(cpu_policy);
mutex_unlock(&per_cpu(msm_mpdec_cpudata, cpu).unboost_mutex);
}
}
if (cpu_mod) {
pr_info(MPDEC_TAG"cpu%i was modified. Restoring state...", cpu);
cpu_down(cpu);
}
return;
}
static void msm_mpdec_revib_work_thread(struct work_struct *work) {
int cpu = smp_processor_id();
if (per_cpu(msm_mpdec_cpudata, cpu).is_boosted) {
per_cpu(msm_mpdec_cpudata, cpu).revib_wq_running = true;
if (ktime_to_ms(ktime_get()) > per_cpu(msm_mpdec_cpudata, cpu).boost_until) {
unboost_cpu(cpu);
} else {
queue_delayed_work_on(
cpu,
msm_mpdec_revib_workq,
&per_cpu(msm_mpdec_revib_work, cpu),
msecs_to_jiffies((per_cpu(msm_mpdec_cpudata, cpu).boost_until - ktime_to_ms(ktime_get())))
);
}
} else {
per_cpu(msm_mpdec_cpudata, cpu).revib_wq_running = false;
}
return;
}
static void mpdec_input_callback(struct work_struct *unused) {
struct cpufreq_policy *cpu_policy = NULL;
int cpu = smp_processor_id();
bool boosted = false;
if (!per_cpu(msm_mpdec_cpudata, cpu).is_boosted) {
if (mutex_trylock(&per_cpu(msm_mpdec_cpudata, cpu).boost_mutex)) {
cpu_policy = cpufreq_cpu_get(cpu);
if (!cpu_policy) {
pr_debug(MPDEC_TAG"NULL policy on cpu %d\n", cpu);
return;
}
per_cpu(msm_mpdec_cpudata, cpu).norm_min_freq = cpu_policy->min;
/* check if boost freq is > minfreq */
cpufreq_verify_within_limits(cpu_policy, cpu_policy->min, per_cpu(msm_mpdec_cpudata, cpu).boost_freq);
update_cpu_min_freq(cpu_policy, cpu, per_cpu(msm_mpdec_cpudata, cpu).boost_freq);
#if DEBUG
pr_info(MPDEC_TAG"boosted cpu%i to %lu", cpu, per_cpu(msm_mpdec_cpudata, cpu).boost_freq);
#endif
per_cpu(msm_mpdec_cpudata, cpu).is_boosted = true;
per_cpu(msm_mpdec_cpudata, cpu).boost_until = ktime_to_ms(ktime_get()) + msm_mpdec_tuners_ins.boost_time;
boosted = true;
cpufreq_cpu_put(cpu_policy);
mutex_unlock(&per_cpu(msm_mpdec_cpudata, cpu).boost_mutex);
}
} else {
boosted = true;
}
if (boosted && !per_cpu(msm_mpdec_cpudata, cpu).revib_wq_running) {
per_cpu(msm_mpdec_cpudata, cpu).revib_wq_running = true;
queue_delayed_work_on(
cpu,
msm_mpdec_revib_workq,
&per_cpu(msm_mpdec_revib_work, cpu),
msecs_to_jiffies(msm_mpdec_tuners_ins.boost_time)
);
} else if (boosted && per_cpu(msm_mpdec_cpudata, cpu).revib_wq_running) {
per_cpu(msm_mpdec_cpudata, cpu).boost_until = ktime_to_ms(ktime_get()) + msm_mpdec_tuners_ins.boost_time;
}
return;
}
#ifdef CONFIG_MSM_THERMAL_X
extern int msm_thermal_x_throttled;
#endif
static void mpdec_input_event(struct input_handle *handle, unsigned int type,
unsigned int code, int value) {
int i = 0;
u64 now;
#ifdef CONFIG_MSM_THERMAL_X
if (msm_thermal_x_throttled > 0)
return;
#endif
if (!msm_mpdec_tuners_ins.boost_enabled)
return;
now = ktime_to_us(ktime_get());
if (now - last_input_time < MIN_INPUT_INTERVAL)
return;
if (!is_screen_on)
return;
for_each_online_cpu(i) {
queue_work_on(i, mpdec_input_wq, &per_cpu(mpdec_input_work, i));
}
last_input_time = ktime_to_us(ktime_get());
}
static int input_dev_filter(const char *input_dev_name) {
if (strstr(input_dev_name, "touch") ||
strstr(input_dev_name, "key") ||
strstr(input_dev_name, "power") ||
strstr(input_dev_name, "pwr") ||
strstr(input_dev_name, "lid")) {
return 0;
} else {
return 1;
}
}
static int mpdec_input_connect(struct input_handler *handler,
struct input_dev *dev, const struct input_device_id *id) {
struct input_handle *handle;
int error;
if (input_dev_filter(dev->name))
return -ENODEV;
handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
if (!handle)
return -ENOMEM;
handle->dev = dev;
handle->handler = handler;
handle->name = "mpdec";
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 mpdec_input_disconnect(struct input_handle *handle) {
input_close_device(handle);
input_unregister_handle(handle);
kfree(handle);
}
static const struct input_device_id mpdec_ids[] = {
{ .driver_info = 1 },
{ },
};
static struct input_handler mpdec_input_handler = {
.event = mpdec_input_event,
.connect = mpdec_input_connect,
.disconnect = mpdec_input_disconnect,
.name = "mpdec_inputreq",
.id_table = mpdec_ids,
};
#endif
static void msm_mpdec_suspend(struct work_struct * msm_mpdec_suspend_work) {
int cpu = nr_cpu_ids;
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
is_screen_on = false;
#endif
if (!msm_mpdec_tuners_ins.scroff_single_core) {
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
for_each_possible_cpu(cpu)
unboost_cpu(cpu);
#endif
pr_info(MPDEC_TAG"Screen -> off\n");
return;
}
/* main work thread can sleep now */
cancel_delayed_work(&msm_mpdec_work);
for_each_possible_cpu(cpu) {
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
unboost_cpu(cpu);
#endif
if ((cpu >= 1) && (cpu_online(cpu))) {
mpdec_cpu_down(cpu);
}
}
mpdec_suspended = true;
pr_info(MPDEC_TAG"Screen -> off. Deactivated mpdecision.\n");
}
static DECLARE_WORK(msm_mpdec_suspend_work, msm_mpdec_suspend);
static void msm_mpdec_resume(struct work_struct * msm_mpdec_suspend_work) {
int cpu = nr_cpu_ids;
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
is_screen_on = true;
#endif
if (!mpdec_suspended) {
pr_info(MPDEC_TAG"Screen -> on\n");
return;
}
mpdec_suspended = false;
if (msm_mpdec_tuners_ins.scroff_single_core) {
/* wake up main work thread */
was_paused = true;
queue_delayed_work(msm_mpdec_workq, &msm_mpdec_work, 0);
/* restore min/max cpus limits */
for (cpu=1; cpu<CONFIG_NR_CPUS; cpu++) {
if (cpu < msm_mpdec_tuners_ins.min_cpus) {
if (!cpu_online(cpu))
mpdec_cpu_up(cpu);
} else if (cpu > msm_mpdec_tuners_ins.max_cpus) {
if (cpu_online(cpu))
mpdec_cpu_down(cpu);
}
}
pr_info(MPDEC_TAG"Screen -> on. Activated mpdecision. | Mask=[%d%d%d%d]\n",
cpu_online(0), cpu_online(1), cpu_online(2), cpu_online(3));
} else {
pr_info(MPDEC_TAG"Screen -> on\n");
}
}
static DECLARE_WORK(msm_mpdec_resume_work, msm_mpdec_resume);
#ifndef CONFIG_HAS_EARLYSUSPEND
static int msm_mpdec_lcd_notifier_callback(struct notifier_block *this,
unsigned long event, void *data) {
pr_debug("%s: event = %lu\n", __func__, event);
switch (event) {
case LCD_EVENT_OFF_START:
mutex_lock(&mpdec_msm_susres_lock);
schedule_work(&msm_mpdec_suspend_work);
break;
case LCD_EVENT_ON_START:
mutex_lock(&mpdec_msm_susres_lock);
schedule_work(&msm_mpdec_resume_work);
break;
case LCD_EVENT_OFF_END:
mutex_unlock(&mpdec_msm_susres_lock);
break;
case LCD_EVENT_ON_END:
mutex_unlock(&mpdec_msm_susres_lock);
break;
default:
break;
}
return 0;
}
#else
static void msm_mpdec_early_suspend(struct early_suspend *h) {
mutex_lock(&mpdec_msm_susres_lock);
schedule_work(&msm_mpdec_suspend_work);
mutex_unlock(&mpdec_msm_susres_lock);
}
static void wakeup_boost(void)
{
unsigned int i, ret;
struct cpufreq_policy policy;
for_each_online_cpu(i) {
ret = cpufreq_get_policy(&policy, i);
if (ret)
continue;
policy.cur = policy.max;
cpufreq_update_policy(i);
}
}
static void msm_mpdec_late_resume(struct early_suspend *h) {
mutex_lock(&mpdec_msm_susres_lock);
schedule_work(&msm_mpdec_resume_work);
mutex_unlock(&mpdec_msm_susres_lock);
wakeup_boost();
}
static struct early_suspend msm_mpdec_early_suspend_handler = {
.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN,
.suspend = msm_mpdec_early_suspend,
.resume = msm_mpdec_late_resume,
};
#endif
/**************************** SYSFS START ****************************/
struct kobject *msm_mpdec_kobject;
#define show_one(file_name, object) \
static ssize_t show_##file_name \
(struct kobject *kobj, struct attribute *attr, char *buf) \
{ \
return sprintf(buf, "%u\n", msm_mpdec_tuners_ins.object); \
}
show_one(startdelay, startdelay);
show_one(delay, delay);
show_one(pause, pause);
show_one(scroff_single_core, scroff_single_core);
show_one(min_cpus, min_cpus);
show_one(max_cpus, max_cpus);
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
show_one(boost_enabled, boost_enabled);
show_one(boost_time, boost_time);
#endif
#define show_one_twts(file_name, arraypos) \
static ssize_t show_##file_name \
(struct kobject *kobj, struct attribute *attr, char *buf) \
{ \
return sprintf(buf, "%u\n", TwTs_Threshold[arraypos]); \
}
show_one_twts(twts_threshold_0, 0);
show_one_twts(twts_threshold_1, 1);
show_one_twts(twts_threshold_2, 2);
show_one_twts(twts_threshold_3, 3);
show_one_twts(twts_threshold_4, 4);
show_one_twts(twts_threshold_5, 5);
show_one_twts(twts_threshold_6, 6);
show_one_twts(twts_threshold_7, 7);
#define store_one_twts(file_name, arraypos) \
static ssize_t store_##file_name \
(struct kobject *a, struct attribute *b, const char *buf, size_t count) \
{ \
unsigned int input; \
int ret; \
ret = sscanf(buf, "%u", &input); \
if (ret != 1) \
return -EINVAL; \
TwTs_Threshold[arraypos] = input; \
return count; \
} \
define_one_global_rw(file_name);
store_one_twts(twts_threshold_0, 0);
store_one_twts(twts_threshold_1, 1);
store_one_twts(twts_threshold_2, 2);
store_one_twts(twts_threshold_3, 3);
store_one_twts(twts_threshold_4, 4);
store_one_twts(twts_threshold_5, 5);
store_one_twts(twts_threshold_6, 6);
store_one_twts(twts_threshold_7, 7);
#define show_one_nwns(file_name, arraypos) \
static ssize_t show_##file_name \
(struct kobject *kobj, struct attribute *attr, char *buf) \
{ \
return sprintf(buf, "%u\n", NwNs_Threshold[arraypos]); \
}
show_one_nwns(nwns_threshold_0, 0);
show_one_nwns(nwns_threshold_1, 1);
show_one_nwns(nwns_threshold_2, 2);
show_one_nwns(nwns_threshold_3, 3);
show_one_nwns(nwns_threshold_4, 4);
show_one_nwns(nwns_threshold_5, 5);
show_one_nwns(nwns_threshold_6, 6);
show_one_nwns(nwns_threshold_7, 7);
#define store_one_nwns(file_name, arraypos) \
static ssize_t store_##file_name \
(struct kobject *a, struct attribute *b, const char *buf, size_t count) \
{ \
unsigned int input; \
int ret; \
ret = sscanf(buf, "%u", &input); \
if (ret != 1) \
return -EINVAL; \
NwNs_Threshold[arraypos] = input; \
return count; \
} \
define_one_global_rw(file_name);
store_one_nwns(nwns_threshold_0, 0);
store_one_nwns(nwns_threshold_1, 1);
store_one_nwns(nwns_threshold_2, 2);
store_one_nwns(nwns_threshold_3, 3);
store_one_nwns(nwns_threshold_4, 4);
store_one_nwns(nwns_threshold_5, 5);
store_one_nwns(nwns_threshold_6, 6);
store_one_nwns(nwns_threshold_7, 7);
static ssize_t show_idle_freq (struct kobject *kobj, struct attribute *attr,
char *buf)
{
return sprintf(buf, "%lu\n", msm_mpdec_tuners_ins.idle_freq);
}
static ssize_t show_enabled(struct kobject *a, struct attribute *b,
char *buf)
{
unsigned int enabled;
switch (state) {
case MSM_MPDEC_DISABLED:
enabled = 0;
break;
case MSM_MPDEC_IDLE:
case MSM_MPDEC_DOWN:
case MSM_MPDEC_UP:
enabled = 1;
break;
default:
enabled = 333;
}
return sprintf(buf, "%u\n", enabled);
}
static ssize_t store_startdelay(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
msm_mpdec_tuners_ins.startdelay = input;
return count;
}
static ssize_t store_delay(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
msm_mpdec_tuners_ins.delay = input;
return count;
}
static ssize_t store_pause(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
msm_mpdec_tuners_ins.pause = input;
return count;
}
static ssize_t store_idle_freq(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
long unsigned int input;
int ret;
ret = sscanf(buf, "%lu", &input);
if (ret != 1)
return -EINVAL;
msm_mpdec_tuners_ins.idle_freq = input;
return count;
}
static ssize_t store_scroff_single_core(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
switch (buf[0]) {
case '0':
case '1':
msm_mpdec_tuners_ins.scroff_single_core = input;
break;
default:
ret = -EINVAL;
}
return count;
}
static ssize_t store_max_cpus(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int input;
int ret, cpu;
ret = sscanf(buf, "%u", &input);
if ((ret != 1) || input > CONFIG_NR_CPUS || input < msm_mpdec_tuners_ins.min_cpus)
return -EINVAL;
msm_mpdec_tuners_ins.max_cpus = input;
if (num_online_cpus() > input) {
for (cpu=CONFIG_NR_CPUS; cpu>0; cpu--) {
if (num_online_cpus() <= input)
break;
if (!cpu_online(cpu))
continue;
mpdec_cpu_down(cpu);
}
pr_info(MPDEC_TAG"max_cpus set to %u. Affected CPUs were unplugged!\n", input);
}
return count;
}
static ssize_t store_min_cpus(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int input;
int ret, cpu;
ret = sscanf(buf, "%u", &input);
if ((ret != 1) || input < 1 || input > msm_mpdec_tuners_ins.max_cpus)
return -EINVAL;
msm_mpdec_tuners_ins.min_cpus = input;
if (num_online_cpus() < input) {
for (cpu=1; cpu<CONFIG_NR_CPUS; cpu++) {
if (num_online_cpus() >= input)
break;
if (cpu_online(cpu))
continue;
mpdec_cpu_up(cpu);
}
pr_info(MPDEC_TAG"min_cpus set to %u. Affected CPUs were hotplugged!\n", input);
}
return count;
}
static ssize_t store_enabled(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int cpu, input, enabled;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
switch (state) {
case MSM_MPDEC_DISABLED:
enabled = 0;
break;
case MSM_MPDEC_IDLE:
case MSM_MPDEC_DOWN:
case MSM_MPDEC_UP:
enabled = 1;
break;
default:
enabled = 333;
}
if (buf[0] == enabled)
return -EINVAL;
switch (buf[0]) {
case '0':
state = MSM_MPDEC_DISABLED;
pr_info(MPDEC_TAG"nap time... Hot plugging offline CPUs...\n");
for (cpu = 1; cpu < CONFIG_NR_CPUS; cpu++)
if (!cpu_online(cpu))
mpdec_cpu_up(cpu);
break;
case '1':
state = MSM_MPDEC_IDLE;
was_paused = true;
queue_delayed_work(msm_mpdec_workq, &msm_mpdec_work,
msecs_to_jiffies(msm_mpdec_tuners_ins.delay));
pr_info(MPDEC_TAG"firing up mpdecision...\n");
break;
default:
ret = -EINVAL;
}
return count;
}
#ifdef CONFIG_MSM_MPDEC_INPUTBOOST_CPUMIN
static ssize_t store_boost_enabled(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
msm_mpdec_tuners_ins.boost_enabled = input;
return count;
}
static ssize_t store_boost_time(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
unsigned int input;
int ret;
ret = sscanf(buf, "%u", &input);
if (ret != 1)