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linux
linux-davinci
Commits
a0b6ca69
Commit
a0b6ca69
authored
Sep 15, 2009
by
Stephen Rothwell
Browse files
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Merge commit 'cpufreq/next'
parents
85c004ca
1a8e42fa
Changes
6
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6 changed files
with
342 additions
and
171 deletions
+342
-171
Documentation/cpu-freq/user-guide.txt
Documentation/cpu-freq/user-guide.txt
+7
-2
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+21
-0
arch/x86/kernel/cpu/cpufreq/powernow-k8.c
arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+4
-25
drivers/cpufreq/cpufreq.c
drivers/cpufreq/cpufreq.c
+187
-118
drivers/cpufreq/cpufreq_ondemand.c
drivers/cpufreq/cpufreq_ondemand.c
+113
-26
include/linux/cpufreq.h
include/linux/cpufreq.h
+10
-0
No files found.
Documentation/cpu-freq/user-guide.txt
View file @
a0b6ca69
...
@@ -176,7 +176,9 @@ scaling_governor, and by "echoing" the name of another
...
@@ -176,7 +176,9 @@ scaling_governor, and by "echoing" the name of another
work on some specific architectures or
work on some specific architectures or
processors.
processors.
cpuinfo_cur_freq : Current speed of the CPU, in KHz.
cpuinfo_cur_freq : Current frequency of the CPU as obtained from
the hardware, in KHz. This is the frequency
the CPU actually runs at.
scaling_available_frequencies : List of available frequencies, in KHz.
scaling_available_frequencies : List of available frequencies, in KHz.
...
@@ -196,7 +198,10 @@ related_cpus : List of CPUs that need some sort of frequency
...
@@ -196,7 +198,10 @@ related_cpus : List of CPUs that need some sort of frequency
scaling_driver : Hardware driver for cpufreq.
scaling_driver : Hardware driver for cpufreq.
scaling_cur_freq : Current frequency of the CPU, in KHz.
scaling_cur_freq : Current frequency of the CPU as determined by
the governor and cpufreq core, in KHz. This is
the frequency the kernel thinks the CPU runs
at.
If you have selected the "userspace" governor which allows you to
If you have selected the "userspace" governor which allows you to
set the CPU operating frequency to a specific value, you can read out
set the CPU operating frequency to a specific value, you can read out
...
...
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
View file @
a0b6ca69
...
@@ -588,6 +588,21 @@ static const struct dmi_system_id sw_any_bug_dmi_table[] = {
...
@@ -588,6 +588,21 @@ static const struct dmi_system_id sw_any_bug_dmi_table[] = {
},
},
{
}
{
}
};
};
static
int
acpi_cpufreq_blacklist
(
struct
cpuinfo_x86
*
c
)
{
/* http://www.intel.com/Assets/PDF/specupdate/314554.pdf
* AL30: A Machine Check Exception (MCE) Occurring during an
* Enhanced Intel SpeedStep Technology Ratio Change May Cause
* Both Processor Cores to Lock Up when HT is enabled*/
if
(
c
->
x86_vendor
==
X86_VENDOR_INTEL
)
{
if
((
c
->
x86
==
15
)
&&
(
c
->
x86_model
==
6
)
&&
(
c
->
x86_mask
==
8
)
&&
smt_capable
())
return
-
ENODEV
;
}
return
0
;
}
#endif
#endif
static
int
acpi_cpufreq_cpu_init
(
struct
cpufreq_policy
*
policy
)
static
int
acpi_cpufreq_cpu_init
(
struct
cpufreq_policy
*
policy
)
...
@@ -602,6 +617,12 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
...
@@ -602,6 +617,12 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
dprintk
(
"acpi_cpufreq_cpu_init
\n
"
);
dprintk
(
"acpi_cpufreq_cpu_init
\n
"
);
#ifdef CONFIG_SMP
result
=
acpi_cpufreq_blacklist
(
c
);
if
(
result
)
return
result
;
#endif
data
=
kzalloc
(
sizeof
(
struct
acpi_cpufreq_data
),
GFP_KERNEL
);
data
=
kzalloc
(
sizeof
(
struct
acpi_cpufreq_data
),
GFP_KERNEL
);
if
(
!
data
)
if
(
!
data
)
return
-
ENOMEM
;
return
-
ENOMEM
;
...
...
arch/x86/kernel/cpu/cpufreq/powernow-k8.c
View file @
a0b6ca69
...
@@ -854,6 +854,10 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
...
@@ -854,6 +854,10 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
goto
err_out
;
goto
err_out
;
}
}
/* fill in data */
data
->
numps
=
data
->
acpi_data
.
state_count
;
powernow_k8_acpi_pst_values
(
data
,
0
);
if
(
cpu_family
==
CPU_HW_PSTATE
)
if
(
cpu_family
==
CPU_HW_PSTATE
)
ret_val
=
fill_powernow_table_pstate
(
data
,
powernow_table
);
ret_val
=
fill_powernow_table_pstate
(
data
,
powernow_table
);
else
else
...
@@ -866,11 +870,8 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
...
@@ -866,11 +870,8 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
powernow_table
[
data
->
acpi_data
.
state_count
].
index
=
0
;
powernow_table
[
data
->
acpi_data
.
state_count
].
index
=
0
;
data
->
powernow_table
=
powernow_table
;
data
->
powernow_table
=
powernow_table
;
/* fill in data */
data
->
numps
=
data
->
acpi_data
.
state_count
;
if
(
cpumask_first
(
cpu_core_mask
(
data
->
cpu
))
==
data
->
cpu
)
if
(
cpumask_first
(
cpu_core_mask
(
data
->
cpu
))
==
data
->
cpu
)
print_basics
(
data
);
print_basics
(
data
);
powernow_k8_acpi_pst_values
(
data
,
0
);
/* notify BIOS that we exist */
/* notify BIOS that we exist */
acpi_processor_notify_smm
(
THIS_MODULE
);
acpi_processor_notify_smm
(
THIS_MODULE
);
...
@@ -941,7 +942,6 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
...
@@ -941,7 +942,6 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
struct
cpufreq_frequency_table
*
powernow_table
)
struct
cpufreq_frequency_table
*
powernow_table
)
{
{
int
i
;
int
i
;
int
cntlofreq
=
0
;
for
(
i
=
0
;
i
<
data
->
acpi_data
.
state_count
;
i
++
)
{
for
(
i
=
0
;
i
<
data
->
acpi_data
.
state_count
;
i
++
)
{
u32
fid
;
u32
fid
;
...
@@ -982,27 +982,6 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
...
@@ -982,27 +982,6 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
continue
;
continue
;
}
}
/* verify only 1 entry from the lo frequency table */
if
(
fid
<
HI_FID_TABLE_BOTTOM
)
{
if
(
cntlofreq
)
{
/* if both entries are the same,
* ignore this one ... */
if
((
freq
!=
powernow_table
[
cntlofreq
].
frequency
)
||
(
index
!=
powernow_table
[
cntlofreq
].
index
))
{
printk
(
KERN_ERR
PFX
"Too many lo freq table "
"entries
\n
"
);
return
1
;
}
dprintk
(
"double low frequency table entry, "
"ignoring it.
\n
"
);
invalidate_entry
(
data
,
i
);
continue
;
}
else
cntlofreq
=
i
;
}
if
(
freq
!=
(
data
->
acpi_data
.
states
[
i
].
core_frequency
*
1000
))
{
if
(
freq
!=
(
data
->
acpi_data
.
states
[
i
].
core_frequency
*
1000
))
{
printk
(
KERN_INFO
PFX
"invalid freq entries "
printk
(
KERN_INFO
PFX
"invalid freq entries "
"%u kHz vs. %u kHz
\n
"
,
freq
,
"%u kHz vs. %u kHz
\n
"
,
freq
,
...
...
drivers/cpufreq/cpufreq.c
View file @
a0b6ca69
This diff is collapsed.
Click to expand it.
drivers/cpufreq/cpufreq_ondemand.c
View file @
a0b6ca69
...
@@ -55,6 +55,18 @@ static unsigned int min_sampling_rate;
...
@@ -55,6 +55,18 @@ static unsigned int min_sampling_rate;
#define TRANSITION_LATENCY_LIMIT (10 * 1000 * 1000)
#define TRANSITION_LATENCY_LIMIT (10 * 1000 * 1000)
static
void
do_dbs_timer
(
struct
work_struct
*
work
);
static
void
do_dbs_timer
(
struct
work_struct
*
work
);
static
int
cpufreq_governor_dbs
(
struct
cpufreq_policy
*
policy
,
unsigned
int
event
);
#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND
static
#endif
struct
cpufreq_governor
cpufreq_gov_ondemand
=
{
.
name
=
"ondemand"
,
.
governor
=
cpufreq_governor_dbs
,
.
max_transition_latency
=
TRANSITION_LATENCY_LIMIT
,
.
owner
=
THIS_MODULE
,
};
/* Sampling types */
/* Sampling types */
enum
{
DBS_NORMAL_SAMPLE
,
DBS_SUB_SAMPLE
};
enum
{
DBS_NORMAL_SAMPLE
,
DBS_SUB_SAMPLE
};
...
@@ -206,20 +218,23 @@ static void ondemand_powersave_bias_init(void)
...
@@ -206,20 +218,23 @@ static void ondemand_powersave_bias_init(void)
}
}
/************************** sysfs interface ************************/
/************************** sysfs interface ************************/
static
ssize_t
show_sampling_rate_max
(
struct
cpufreq_policy
*
policy
,
char
*
buf
)
static
ssize_t
show_sampling_rate_max
(
struct
kobject
*
kobj
,
struct
attribute
*
attr
,
char
*
buf
)
{
{
printk_once
(
KERN_INFO
"CPUFREQ: ondemand sampling_rate_max "
printk_once
(
KERN_INFO
"CPUFREQ: ondemand sampling_rate_max "
"sysfs file is deprecated - used by: %s
\n
"
,
current
->
comm
);
"sysfs file is deprecated - used by: %s
\n
"
,
current
->
comm
);
return
sprintf
(
buf
,
"%u
\n
"
,
-
1U
);
return
sprintf
(
buf
,
"%u
\n
"
,
-
1U
);
}
}
static
ssize_t
show_sampling_rate_min
(
struct
cpufreq_policy
*
policy
,
char
*
buf
)
static
ssize_t
show_sampling_rate_min
(
struct
kobject
*
kobj
,
struct
attribute
*
attr
,
char
*
buf
)
{
{
return
sprintf
(
buf
,
"%u
\n
"
,
min_sampling_rate
);
return
sprintf
(
buf
,
"%u
\n
"
,
min_sampling_rate
);
}
}
#define define_one_ro(_name) \
#define define_one_ro(_name) \
static struct
freq_attr _name =
\
static struct
global_attr _name =
\
__ATTR(_name, 0444, show_##_name, NULL)
__ATTR(_name, 0444, show_##_name, NULL)
define_one_ro
(
sampling_rate_max
);
define_one_ro
(
sampling_rate_max
);
...
@@ -228,7 +243,7 @@ define_one_ro(sampling_rate_min);
...
@@ -228,7 +243,7 @@ define_one_ro(sampling_rate_min);
/* cpufreq_ondemand Governor Tunables */
/* cpufreq_ondemand Governor Tunables */
#define show_one(file_name, object) \
#define show_one(file_name, object) \
static ssize_t show_##file_name \
static ssize_t show_##file_name \
(struct
cpufreq_policy *unused, char *buf)
\
(struct
kobject *kobj, struct attribute *attr, char *buf)
\
{ \
{ \
return sprintf(buf, "%u\n", dbs_tuners_ins.object); \
return sprintf(buf, "%u\n", dbs_tuners_ins.object); \
}
}
...
@@ -237,7 +252,37 @@ show_one(up_threshold, up_threshold);
...
@@ -237,7 +252,37 @@ show_one(up_threshold, up_threshold);
show_one
(
ignore_nice_load
,
ignore_nice
);
show_one
(
ignore_nice_load
,
ignore_nice
);
show_one
(
powersave_bias
,
powersave_bias
);
show_one
(
powersave_bias
,
powersave_bias
);
static
ssize_t
store_sampling_rate
(
struct
cpufreq_policy
*
unused
,
/*** delete after deprecation time ***/
#define DEPRECATION_MSG(file_name) \
printk_once(KERN_INFO "CPUFREQ: Per core ondemand sysfs " \
"interface is deprecated - " #file_name "\n");
#define show_one_old(file_name) \
static ssize_t show_##file_name##_old \
(struct cpufreq_policy *unused, char *buf) \
{ \
printk_once(KERN_INFO "CPUFREQ: Per core ondemand sysfs " \
"interface is deprecated - " #file_name "\n"); \
return show_##file_name(NULL, NULL, buf); \
}
show_one_old
(
sampling_rate
);
show_one_old
(
up_threshold
);
show_one_old
(
ignore_nice_load
);
show_one_old
(
powersave_bias
);
show_one_old
(
sampling_rate_min
);
show_one_old
(
sampling_rate_max
);
#define define_one_ro_old(object, _name) \
static struct freq_attr object = \
__ATTR(_name, 0444, show_##_name##_old, NULL)
define_one_ro_old
(
sampling_rate_min_old
,
sampling_rate_min
);
define_one_ro_old
(
sampling_rate_max_old
,
sampling_rate_max
);
/*** delete after deprecation time ***/
static
ssize_t
store_sampling_rate
(
struct
kobject
*
a
,
struct
attribute
*
b
,
const
char
*
buf
,
size_t
count
)
const
char
*
buf
,
size_t
count
)
{
{
unsigned
int
input
;
unsigned
int
input
;
...
@@ -253,7 +298,7 @@ static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
...
@@ -253,7 +298,7 @@ static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
return
count
;
return
count
;
}
}
static
ssize_t
store_up_threshold
(
struct
cpufreq_policy
*
unused
,
static
ssize_t
store_up_threshold
(
struct
kobject
*
a
,
struct
attribute
*
b
,
const
char
*
buf
,
size_t
count
)
const
char
*
buf
,
size_t
count
)
{
{
unsigned
int
input
;
unsigned
int
input
;
...
@@ -272,7 +317,7 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
...
@@ -272,7 +317,7 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
return
count
;
return
count
;
}
}
static
ssize_t
store_ignore_nice_load
(
struct
cpufreq_policy
*
policy
,
static
ssize_t
store_ignore_nice_load
(
struct
kobject
*
a
,
struct
attribute
*
b
,
const
char
*
buf
,
size_t
count
)
const
char
*
buf
,
size_t
count
)
{
{
unsigned
int
input
;
unsigned
int
input
;
...
@@ -309,7 +354,7 @@ static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
...
@@ -309,7 +354,7 @@ static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
return
count
;
return
count
;
}
}
static
ssize_t
store_powersave_bias
(
struct
cpufreq_policy
*
unused
,
static
ssize_t
store_powersave_bias
(
struct
kobject
*
a
,
struct
attribute
*
b
,
const
char
*
buf
,
size_t
count
)
const
char
*
buf
,
size_t
count
)
{
{
unsigned
int
input
;
unsigned
int
input
;
...
@@ -331,7 +376,7 @@ static ssize_t store_powersave_bias(struct cpufreq_policy *unused,
...
@@ -331,7 +376,7 @@ static ssize_t store_powersave_bias(struct cpufreq_policy *unused,
}
}
#define define_one_rw(_name) \
#define define_one_rw(_name) \
static struct
freq
_attr _name = \
static struct
global
_attr _name = \
__ATTR(_name, 0644, show_##_name, store_##_name)
__ATTR(_name, 0644, show_##_name, store_##_name)
define_one_rw
(
sampling_rate
);
define_one_rw
(
sampling_rate
);
...
@@ -354,6 +399,47 @@ static struct attribute_group dbs_attr_group = {
...
@@ -354,6 +399,47 @@ static struct attribute_group dbs_attr_group = {
.
name
=
"ondemand"
,
.
name
=
"ondemand"
,
};
};
/*** delete after deprecation time ***/
#define write_one_old(file_name) \
static ssize_t store_##file_name##_old \
(struct cpufreq_policy *unused, const char *buf, size_t count) \
{ \
printk_once(KERN_INFO "CPUFREQ: Per core ondemand sysfs " \
"interface is deprecated - " #file_name "\n"); \
return store_##file_name(NULL, NULL, buf, count); \
}
write_one_old
(
sampling_rate
);
write_one_old
(
up_threshold
);
write_one_old
(
ignore_nice_load
);
write_one_old
(
powersave_bias
);
#define define_one_rw_old(object, _name) \
static struct freq_attr object = \
__ATTR(_name, 0644, show_##_name##_old, store_##_name##_old)
define_one_rw_old
(
sampling_rate_old
,
sampling_rate
);
define_one_rw_old
(
up_threshold_old
,
up_threshold
);
define_one_rw_old
(
ignore_nice_load_old
,
ignore_nice_load
);
define_one_rw_old
(
powersave_bias_old
,
powersave_bias
);
static
struct
attribute
*
dbs_attributes_old
[]
=
{
&
sampling_rate_max_old
.
attr
,
&
sampling_rate_min_old
.
attr
,
&
sampling_rate_old
.
attr
,
&
up_threshold_old
.
attr
,
&
ignore_nice_load_old
.
attr
,
&
powersave_bias_old
.
attr
,
NULL
};
static
struct
attribute_group
dbs_attr_group_old
=
{
.
attrs
=
dbs_attributes_old
,
.
name
=
"ondemand"
,
};
/*** delete after deprecation time ***/
/************************** sysfs end ************************/
/************************** sysfs end ************************/
static
void
dbs_check_cpu
(
struct
cpu_dbs_info_s
*
this_dbs_info
)
static
void
dbs_check_cpu
(
struct
cpu_dbs_info_s
*
this_dbs_info
)
...
@@ -544,7 +630,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
...
@@ -544,7 +630,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
mutex_lock
(
&
dbs_mutex
);
mutex_lock
(
&
dbs_mutex
);
rc
=
sysfs_create_group
(
&
policy
->
kobj
,
&
dbs_attr_group
);
rc
=
sysfs_create_group
(
&
policy
->
kobj
,
&
dbs_attr_group
_old
);
if
(
rc
)
{
if
(
rc
)
{
mutex_unlock
(
&
dbs_mutex
);
mutex_unlock
(
&
dbs_mutex
);
return
rc
;
return
rc
;
...
@@ -565,13 +651,20 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
...
@@ -565,13 +651,20 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
}
}
this_dbs_info
->
cpu
=
cpu
;
this_dbs_info
->
cpu
=
cpu
;
ondemand_powersave_bias_init_cpu
(
cpu
);
ondemand_powersave_bias_init_cpu
(
cpu
);
mutex_init
(
&
this_dbs_info
->
timer_mutex
);
/*
/*
* Start the timerschedule work, when this governor
* Start the timerschedule work, when this governor
* is used for first time
* is used for first time
*/
*/
if
(
dbs_enable
==
1
)
{
if
(
dbs_enable
==
1
)
{
unsigned
int
latency
;
unsigned
int
latency
;
rc
=
sysfs_create_group
(
cpufreq_global_kobject
,
&
dbs_attr_group
);
if
(
rc
)
{
mutex_unlock
(
&
dbs_mutex
);
return
rc
;
}
/* policy latency is in nS. Convert it to uS first */
/* policy latency is in nS. Convert it to uS first */
latency
=
policy
->
cpuinfo
.
transition_latency
/
1000
;
latency
=
policy
->
cpuinfo
.
transition_latency
/
1000
;
if
(
latency
==
0
)
if
(
latency
==
0
)
...
@@ -585,6 +678,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
...
@@ -585,6 +678,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
}
}
mutex_unlock
(
&
dbs_mutex
);
mutex_unlock
(
&
dbs_mutex
);
mutex_init
(
&
this_dbs_info
->
timer_mutex
);
dbs_timer_init
(
this_dbs_info
);
dbs_timer_init
(
this_dbs_info
);
break
;
break
;
...
@@ -592,10 +686,13 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
...
@@ -592,10 +686,13 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
dbs_timer_exit
(
this_dbs_info
);
dbs_timer_exit
(
this_dbs_info
);
mutex_lock
(
&
dbs_mutex
);
mutex_lock
(
&
dbs_mutex
);
sysfs_remove_group
(
&
policy
->
kobj
,
&
dbs_attr_group
);
sysfs_remove_group
(
&
policy
->
kobj
,
&
dbs_attr_group
_old
);
mutex_destroy
(
&
this_dbs_info
->
timer_mutex
);
mutex_destroy
(
&
this_dbs_info
->
timer_mutex
);
dbs_enable
--
;
dbs_enable
--
;
mutex_unlock
(
&
dbs_mutex
);
mutex_unlock
(
&
dbs_mutex
);
if
(
!
dbs_enable
)
sysfs_remove_group
(
cpufreq_global_kobject
,
&
dbs_attr_group
);
break
;
break
;
...
@@ -613,16 +710,6 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
...
@@ -613,16 +710,6 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
return
0
;
return
0
;
}
}
#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND
static
#endif
struct
cpufreq_governor
cpufreq_gov_ondemand
=
{
.
name
=
"ondemand"
,
.
governor
=
cpufreq_governor_dbs
,
.
max_transition_latency
=
TRANSITION_LATENCY_LIMIT
,
.
owner
=
THIS_MODULE
,
};
static
int
__init
cpufreq_gov_dbs_init
(
void
)
static
int
__init
cpufreq_gov_dbs_init
(
void
)
{
{
int
err
;
int
err
;
...
...
include/linux/cpufreq.h
View file @
a0b6ca69
...
@@ -65,6 +65,9 @@ static inline int cpufreq_unregister_notifier(struct notifier_block *nb,
...
@@ -65,6 +65,9 @@ static inline int cpufreq_unregister_notifier(struct notifier_block *nb,
struct
cpufreq_governor
;
struct
cpufreq_governor
;
/* /sys/devices/system/cpu/cpufreq: entry point for global variables */
extern
struct
kobject
*
cpufreq_global_kobject
;
#define CPUFREQ_ETERNAL (-1)
#define CPUFREQ_ETERNAL (-1)
struct
cpufreq_cpuinfo
{
struct
cpufreq_cpuinfo
{
unsigned
int
max_freq
;
unsigned
int
max_freq
;
...
@@ -274,6 +277,13 @@ struct freq_attr {
...
@@ -274,6 +277,13 @@ struct freq_attr {
ssize_t
(
*
store
)(
struct
cpufreq_policy
*
,
const
char
*
,
size_t
count
);
ssize_t
(
*
store
)(
struct
cpufreq_policy
*
,
const
char
*
,
size_t
count
);
};
};
struct
global_attr
{
struct
attribute
attr
;
ssize_t
(
*
show
)(
struct
kobject
*
kobj
,
struct
attribute
*
attr
,
char
*
buf
);
ssize_t
(
*
store
)(
struct
kobject
*
a
,
struct
attribute
*
b
,
const
char
*
c
,
size_t
count
);
};
/*********************************************************************
/*********************************************************************
* CPUFREQ 2.6. INTERFACE *
* CPUFREQ 2.6. INTERFACE *
...
...
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