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Kirill Smelkov
linux
Commits
da9888d1
Commit
da9888d1
authored
Jul 03, 2004
by
Dave Jones
Browse files
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Plain Diff
[CPUFREQ] Trailing whitespace removal in longrun driver.
Signed-off-by:
Dave Jones
<
davej@redhat.com
>
parent
1bd0aaa0
Changes
1
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Showing
1 changed file
with
21 additions
and
21 deletions
+21
-21
arch/i386/kernel/cpu/cpufreq/longrun.c
arch/i386/kernel/cpu/cpufreq/longrun.c
+21
-21
No files found.
arch/i386/kernel/cpu/cpufreq/longrun.c
View file @
da9888d1
...
@@ -7,7 +7,7 @@
...
@@ -7,7 +7,7 @@
*/
*/
#include <linux/kernel.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/slab.h>
#include <linux/cpufreq.h>
#include <linux/cpufreq.h>
...
@@ -19,7 +19,7 @@
...
@@ -19,7 +19,7 @@
static
struct
cpufreq_driver
longrun_driver
;
static
struct
cpufreq_driver
longrun_driver
;
/**
/**
* longrun_{low,high}_freq is needed for the conversion of cpufreq kHz
* longrun_{low,high}_freq is needed for the conversion of cpufreq kHz
* values into per cent values. In TMTA microcode, the following is valid:
* values into per cent values. In TMTA microcode, the following is valid:
* performance_pctg = (current_freq - low_freq)/(high_freq - low_freq)
* performance_pctg = (current_freq - low_freq)/(high_freq - low_freq)
*/
*/
...
@@ -42,18 +42,18 @@ static void __init longrun_get_policy(struct cpufreq_policy *policy)
...
@@ -42,18 +42,18 @@ static void __init longrun_get_policy(struct cpufreq_policy *policy)
policy
->
policy
=
CPUFREQ_POLICY_PERFORMANCE
;
policy
->
policy
=
CPUFREQ_POLICY_PERFORMANCE
;
else
else
policy
->
policy
=
CPUFREQ_POLICY_POWERSAVE
;
policy
->
policy
=
CPUFREQ_POLICY_POWERSAVE
;
rdmsr
(
MSR_TMTA_LONGRUN_CTRL
,
msr_lo
,
msr_hi
);
rdmsr
(
MSR_TMTA_LONGRUN_CTRL
,
msr_lo
,
msr_hi
);
msr_lo
&=
0x0000007F
;
msr_lo
&=
0x0000007F
;
msr_hi
&=
0x0000007F
;
msr_hi
&=
0x0000007F
;
if
(
longrun_high_freq
<=
longrun_low_freq
)
{
if
(
longrun_high_freq
<=
longrun_low_freq
)
{
/* Assume degenerate Longrun table */
/* Assume degenerate Longrun table */
policy
->
min
=
policy
->
max
=
longrun_high_freq
;
policy
->
min
=
policy
->
max
=
longrun_high_freq
;
}
else
{
}
else
{
policy
->
min
=
longrun_low_freq
+
msr_lo
*
policy
->
min
=
longrun_low_freq
+
msr_lo
*
((
longrun_high_freq
-
longrun_low_freq
)
/
100
);
((
longrun_high_freq
-
longrun_low_freq
)
/
100
);
policy
->
max
=
longrun_low_freq
+
msr_hi
*
policy
->
max
=
longrun_low_freq
+
msr_hi
*
((
longrun_high_freq
-
longrun_low_freq
)
/
100
);
((
longrun_high_freq
-
longrun_low_freq
)
/
100
);
}
}
policy
->
cpu
=
0
;
policy
->
cpu
=
0
;
...
@@ -79,9 +79,9 @@ static int longrun_set_policy(struct cpufreq_policy *policy)
...
@@ -79,9 +79,9 @@ static int longrun_set_policy(struct cpufreq_policy *policy)
/* Assume degenerate Longrun table */
/* Assume degenerate Longrun table */
pctg_lo
=
pctg_hi
=
100
;
pctg_lo
=
pctg_hi
=
100
;
}
else
{
}
else
{
pctg_lo
=
(
policy
->
min
-
longrun_low_freq
)
/
pctg_lo
=
(
policy
->
min
-
longrun_low_freq
)
/
((
longrun_high_freq
-
longrun_low_freq
)
/
100
);
((
longrun_high_freq
-
longrun_low_freq
)
/
100
);
pctg_hi
=
(
policy
->
max
-
longrun_low_freq
)
/
pctg_hi
=
(
policy
->
max
-
longrun_low_freq
)
/
((
longrun_high_freq
-
longrun_low_freq
)
/
100
);
((
longrun_high_freq
-
longrun_low_freq
)
/
100
);
}
}
...
@@ -118,7 +118,7 @@ static int longrun_set_policy(struct cpufreq_policy *policy)
...
@@ -118,7 +118,7 @@ static int longrun_set_policy(struct cpufreq_policy *policy)
* longrun_verify_poliy - verifies a new CPUFreq policy
* longrun_verify_poliy - verifies a new CPUFreq policy
* @policy: the policy to verify
* @policy: the policy to verify
*
*
* Validates a new CPUFreq policy. This function has to be called with
* Validates a new CPUFreq policy. This function has to be called with
* cpufreq_driver locked.
* cpufreq_driver locked.
*/
*/
static
int
longrun_verify_policy
(
struct
cpufreq_policy
*
policy
)
static
int
longrun_verify_policy
(
struct
cpufreq_policy
*
policy
)
...
@@ -127,8 +127,8 @@ static int longrun_verify_policy(struct cpufreq_policy *policy)
...
@@ -127,8 +127,8 @@ static int longrun_verify_policy(struct cpufreq_policy *policy)
return
-
EINVAL
;
return
-
EINVAL
;
policy
->
cpu
=
0
;
policy
->
cpu
=
0
;
cpufreq_verify_within_limits
(
policy
,
cpufreq_verify_within_limits
(
policy
,
policy
->
cpuinfo
.
min_freq
,
policy
->
cpuinfo
.
min_freq
,
policy
->
cpuinfo
.
max_freq
);
policy
->
cpuinfo
.
max_freq
);
if
((
policy
->
policy
!=
CPUFREQ_POLICY_POWERSAVE
)
&&
if
((
policy
->
policy
!=
CPUFREQ_POLICY_POWERSAVE
)
&&
...
@@ -160,7 +160,7 @@ static unsigned int longrun_get(unsigned int cpu)
...
@@ -160,7 +160,7 @@ static unsigned int longrun_get(unsigned int cpu)
* TMTA rules:
* TMTA rules:
* performance_pctg = (target_freq - low_freq)/(high_freq - low_freq)
* performance_pctg = (target_freq - low_freq)/(high_freq - low_freq)
*/
*/
static
unsigned
int
__init
longrun_determine_freqs
(
unsigned
int
*
low_freq
,
static
unsigned
int
__init
longrun_determine_freqs
(
unsigned
int
*
low_freq
,
unsigned
int
*
high_freq
)
unsigned
int
*
high_freq
)
{
{
u32
msr_lo
,
msr_hi
;
u32
msr_lo
,
msr_hi
;
...
@@ -174,9 +174,9 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
...
@@ -174,9 +174,9 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
if
(
cpu_has
(
c
,
X86_FEATURE_LRTI
))
{
if
(
cpu_has
(
c
,
X86_FEATURE_LRTI
))
{
/* if the LongRun Table Interface is present, the
/* if the LongRun Table Interface is present, the
* detection is a bit easier:
* detection is a bit easier:
* For minimum frequency, read out the maximum
* For minimum frequency, read out the maximum
* level (msr_hi), write that into "currently
* level (msr_hi), write that into "currently
* selected level", and read out the frequency.
* selected level", and read out the frequency.
* For maximum frequency, read out level zero.
* For maximum frequency, read out level zero.
*/
*/
...
@@ -223,7 +223,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
...
@@ -223,7 +223,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
cpuid
(
0x80860007
,
&
eax
,
&
ebx
,
&
ecx
,
&
edx
);
cpuid
(
0x80860007
,
&
eax
,
&
ebx
,
&
ecx
,
&
edx
);
/* restore values */
/* restore values */
wrmsr
(
MSR_TMTA_LONGRUN_CTRL
,
save_lo
,
save_hi
);
wrmsr
(
MSR_TMTA_LONGRUN_CTRL
,
save_lo
,
save_hi
);
}
}
/* performance_pctg = (current_freq - low_freq)/(high_freq - low_freq)
/* performance_pctg = (current_freq - low_freq)/(high_freq - low_freq)
...
@@ -237,7 +237,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
...
@@ -237,7 +237,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
if
((
ecx
>
95
)
||
(
ecx
==
0
)
||
(
eax
<
ebx
))
if
((
ecx
>
95
)
||
(
ecx
==
0
)
||
(
eax
<
ebx
))
return
-
EIO
;
return
-
EIO
;
edx
=
(
eax
-
ebx
)
/
(
100
-
ecx
);
edx
=
(
eax
-
ebx
)
/
(
100
-
ecx
);
*
low_freq
=
edx
*
1000
;
/* back to kHz */
*
low_freq
=
edx
*
1000
;
/* back to kHz */
if
(
*
low_freq
>
*
high_freq
)
if
(
*
low_freq
>
*
high_freq
)
...
@@ -249,7 +249,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
...
@@ -249,7 +249,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq,
static
int
__init
longrun_cpu_init
(
struct
cpufreq_policy
*
policy
)
static
int
__init
longrun_cpu_init
(
struct
cpufreq_policy
*
policy
)
{
{
int
result
=
0
;
int
result
=
0
;
/* capability check */
/* capability check */
if
(
policy
->
cpu
!=
0
)
if
(
policy
->
cpu
!=
0
)
...
@@ -265,15 +265,15 @@ static int __init longrun_cpu_init(struct cpufreq_policy *policy)
...
@@ -265,15 +265,15 @@ static int __init longrun_cpu_init(struct cpufreq_policy *policy)
policy
->
cpuinfo
.
max_freq
=
longrun_high_freq
;
policy
->
cpuinfo
.
max_freq
=
longrun_high_freq
;
policy
->
cpuinfo
.
transition_latency
=
CPUFREQ_ETERNAL
;
policy
->
cpuinfo
.
transition_latency
=
CPUFREQ_ETERNAL
;
longrun_get_policy
(
policy
);
longrun_get_policy
(
policy
);
return
0
;
return
0
;
}
}
static
struct
cpufreq_driver
longrun_driver
=
{
static
struct
cpufreq_driver
longrun_driver
=
{
.
flags
=
CPUFREQ_CONST_LOOPS
,
.
flags
=
CPUFREQ_CONST_LOOPS
,
.
verify
=
longrun_verify_policy
,
.
verify
=
longrun_verify_policy
,
.
setpolicy
=
longrun_set_policy
,
.
setpolicy
=
longrun_set_policy
,
.
get
=
longrun_get
,
.
get
=
longrun_get
,
.
init
=
longrun_cpu_init
,
.
init
=
longrun_cpu_init
,
.
name
=
"longrun"
,
.
name
=
"longrun"
,
...
@@ -290,7 +290,7 @@ static int __init longrun_init(void)
...
@@ -290,7 +290,7 @@ static int __init longrun_init(void)
{
{
struct
cpuinfo_x86
*
c
=
cpu_data
;
struct
cpuinfo_x86
*
c
=
cpu_data
;
if
(
c
->
x86_vendor
!=
X86_VENDOR_TRANSMETA
||
if
(
c
->
x86_vendor
!=
X86_VENDOR_TRANSMETA
||
!
cpu_has
(
c
,
X86_FEATURE_LONGRUN
))
!
cpu_has
(
c
,
X86_FEATURE_LONGRUN
))
return
-
ENODEV
;
return
-
ENODEV
;
...
...
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