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cpufreq: interactive: add boost pulse interface

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Change-Id: Icf1e86d2065cc8f0816ba9c6b065eb056d4e8249
Signed-off-by: Todd Poynor <toddpoynor@google.com>
This commit is contained in:
Todd Poynor 2012-05-03 00:16:55 -07:00
parent aadf030d84
commit 2e739a0791
3 changed files with 44 additions and 17 deletions
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9
Documentation/cpu-freq/governors.txt
View file

@ -241,8 +241,13 @@ not idle. Default is 20000 uS.
input_boost: If non-zero, boost speed of all CPUs to hispeed_freq on
touchscreen activity. Default is 0.
boost: If non-zero, immediately boost speed of all CPUs to
hispeed_freq. If zero, allow CPU speeds to drop below hispeed_freq.
boost: If non-zero, immediately boost speed of all CPUs to at least
hispeed_freq until zero is written to this attribute. If zero, allow
CPU speeds to drop below hispeed_freq according to load as usual.
boostpulse: Immediately boost speed of all CPUs to hispeed_freq for
min_sample_time, after which speeds are allowed to drop below
hispeed_freq according to load as usual.
3. The Governor Interface in the CPUfreq Core

32
drivers/cpufreq/cpufreq_interactive.c
View file

@ -494,7 +494,6 @@ static void cpufreq_interactive_boost(void)
unsigned long flags;
struct cpufreq_interactive_cpuinfo *pcpu;
trace_cpufreq_interactive_boost(hispeed_freq);
spin_lock_irqsave(&up_cpumask_lock, flags);
for_each_online_cpu(i) {
@ -533,9 +532,11 @@ static void cpufreq_interactive_input_event(struct input_handle *handle,
unsigned int type,
unsigned int code, int value)
{
if (input_boost_val && type == EV_SYN && code == SYN_REPORT)
if (input_boost_val && type == EV_SYN && code == SYN_REPORT) {
trace_cpufreq_interactive_boost("input");
cpufreq_interactive_boost();
}
}
static void cpufreq_interactive_input_open(struct work_struct *w)
{
@ -762,16 +763,36 @@ static ssize_t store_boost(struct kobject *kobj, struct attribute *attr,
boost_val = val;
if (boost_val)
if (boost_val) {
trace_cpufreq_interactive_boost("on");
cpufreq_interactive_boost();
else
trace_cpufreq_interactive_unboost(hispeed_freq);
} else {
trace_cpufreq_interactive_unboost("off");
}
return count;
}
define_one_global_rw(boost);
static ssize_t store_boostpulse(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t count)
{
int ret;
unsigned long val;
ret = kstrtoul(buf, 0, &val);
if (ret < 0)
return ret;
trace_cpufreq_interactive_boost("pulse");
cpufreq_interactive_boost();
return count;
}
static struct global_attr boostpulse =
__ATTR(boostpulse, 0200, NULL, store_boostpulse);
static struct attribute *interactive_attributes[] = {
&hispeed_freq_attr.attr,
&go_hispeed_load_attr.attr,
@ -780,6 +801,7 @@ static struct attribute *interactive_attributes[] = {
&timer_rate_attr.attr,
&input_boost.attr,
&boost.attr,
&boostpulse.attr,
NULL,
};

20
include/trace/events/cpufreq_interactive.h
View file

@ -83,27 +83,27 @@ DEFINE_EVENT(loadeval, cpufreq_interactive_notyet,
);
TRACE_EVENT(cpufreq_interactive_boost,
TP_PROTO(unsigned long freq),
TP_ARGS(freq),
TP_PROTO(char *s),
TP_ARGS(s),
TP_STRUCT__entry(
__field(unsigned long, freq)
__field(char *, s)
),
TP_fast_assign(
__entry->freq = freq;
__entry->s = s;
),
TP_printk("freq=%lu", __entry->freq)
TP_printk("%s", __entry->s)
);
TRACE_EVENT(cpufreq_interactive_unboost,
TP_PROTO(unsigned long freq),
TP_ARGS(freq),
TP_PROTO(char *s),
TP_ARGS(s),
TP_STRUCT__entry(
__field(unsigned long, freq)
__field(char *, s)
),
TP_fast_assign(
__entry->freq = freq;
__entry->s = s;
),
TP_printk("freq=%lu", __entry->freq)
TP_printk("%s", __entry->s)
);
#endif /* _TRACE_CPUFREQ_INTERACTIVE_H */