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Kirill Smelkov
linux
Commits
04529916
Commit
04529916
authored
Aug 03, 2004
by
Dave Jones
Committed by
Dave Jones
Aug 03, 2004
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[CPUFREQ] Whitespace/CodingStyle fixes for speedstep-ich
Signed-off-by:
Dave Jones
<
davej@redhat.com
>
parent
6c7b6c0c
Changes
1
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1 changed file
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41 additions
and
45 deletions
+41
-45
arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
+41
-45
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arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
View file @
04529916
...
...
@@ -7,7 +7,7 @@
* for chipsets ICH2-M and ICH3-M.
*
* Many thanks to Ducrot Bruno for finding and fixing the last
* "missing link" for ICH2-M/ICH3-M support, and to Thomas Winkler
* "missing link" for ICH2-M/ICH3-M support, and to Thomas Winkler
* for extensive testing.
*
* BIG FAT DISCLAIMER: Work in progress code. Possibly *dangerous*
...
...
@@ -19,7 +19,7 @@
*********************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/pci.h>
...
...
@@ -29,24 +29,24 @@
/* speedstep_chipset:
* It is necessary to know which chipset is used. As accesses to
* this device occur at various places in this module, we need a
* It is necessary to know which chipset is used. As accesses to
* this device occur at various places in this module, we need a
* static struct pci_dev * pointing to that device.
*/
static
struct
pci_dev
*
speedstep_chipset_dev
;
static
struct
pci_dev
*
speedstep_chipset_dev
;
/* speedstep_processor
*/
static
unsigned
int
speedstep_processor
=
0
;
static
unsigned
int
speedstep_processor
=
0
;
/*
/*
* There are only two frequency states for each processor. Values
* are in kHz for the time being.
*/
static
struct
cpufreq_frequency_table
speedstep_freqs
[]
=
{
{
SPEEDSTEP_HIGH
,
0
},
{
SPEEDSTEP_HIGH
,
0
},
{
SPEEDSTEP_LOW
,
0
},
{
0
,
CPUFREQ_TABLE_END
},
};
...
...
@@ -68,22 +68,21 @@ static struct cpufreq_frequency_table speedstep_freqs[] = {
* speedstep_set_state - set the SpeedStep state
* @state: new processor frequency state (SPEEDSTEP_LOW or SPEEDSTEP_HIGH)
*
* Tries to change the SpeedStep state.
* Tries to change the SpeedStep state.
*/
static
void
speedstep_set_state
(
unsigned
int
state
)
{
u32
pmbase
;
u8
pm2_blk
;
u8
value
;
unsigned
long
flags
;
u32
pmbase
;
u8
pm2_blk
;
u8
value
;
unsigned
long
flags
;
if
(
!
speedstep_chipset_dev
||
(
state
>
0x1
))
return
;
/* get PMBASE */
pci_read_config_dword
(
speedstep_chipset_dev
,
0x40
,
&
pmbase
);
if
(
!
(
pmbase
&
0x01
))
{
if
(
!
(
pmbase
&
0x01
))
{
printk
(
KERN_ERR
"cpufreq: could not find speedstep register
\n
"
);
return
;
}
...
...
@@ -146,18 +145,16 @@ static void speedstep_set_state (unsigned int state)
*/
static
int
speedstep_activate
(
void
)
{
u16
value
=
0
;
u16
value
=
0
;
if
(
!
speedstep_chipset_dev
)
return
-
EINVAL
;
pci_read_config_word
(
speedstep_chipset_dev
,
0x00A0
,
&
value
);
pci_read_config_word
(
speedstep_chipset_dev
,
0x00A0
,
&
value
);
if
(
!
(
value
&
0x08
))
{
value
|=
0x08
;
dprintk
(
KERN_DEBUG
"cpufreq: activating SpeedStep (TM) registers
\n
"
);
pci_write_config_word
(
speedstep_chipset_dev
,
0x00A0
,
value
);
pci_write_config_word
(
speedstep_chipset_dev
,
0x00A0
,
value
);
}
return
0
;
...
...
@@ -167,15 +164,15 @@ static int speedstep_activate (void)
/**
* speedstep_detect_chipset - detect the Southbridge which contains SpeedStep logic
*
* Detects ICH2-M, ICH3-M and ICH4-M so far. The pci_dev points to
* the LPC bridge / PM module which contains all power-management
* Detects ICH2-M, ICH3-M and ICH4-M so far. The pci_dev points to
* the LPC bridge / PM module which contains all power-management
* functions. Returns the SPEEDSTEP_CHIPSET_-number for the detected
* chipset, or zero on failure.
*/
static
unsigned
int
speedstep_detect_chipset
(
void
)
{
speedstep_chipset_dev
=
pci_find_subsys
(
PCI_VENDOR_ID_INTEL
,
PCI_DEVICE_ID_INTEL_82801DB_12
,
PCI_DEVICE_ID_INTEL_82801DB_12
,
PCI_ANY_ID
,
PCI_ANY_ID
,
NULL
);
...
...
@@ -183,7 +180,7 @@ static unsigned int speedstep_detect_chipset (void)
return
4
;
/* 4-M */
speedstep_chipset_dev
=
pci_find_subsys
(
PCI_VENDOR_ID_INTEL
,
PCI_DEVICE_ID_INTEL_82801CA_12
,
PCI_DEVICE_ID_INTEL_82801CA_12
,
PCI_ANY_ID
,
PCI_ANY_ID
,
NULL
);
...
...
@@ -198,11 +195,11 @@ static unsigned int speedstep_detect_chipset (void)
NULL
);
if
(
speedstep_chipset_dev
)
{
/* speedstep.c causes lockups on Dell Inspirons 8000 and
* 8100 which use a pretty old revision of the 82815
* 8100 which use a pretty old revision of the 82815
* host brige. Abort on these systems.
*/
static
struct
pci_dev
*
hostbridge
;
u8
rev
=
0
;
static
struct
pci_dev
*
hostbridge
;
u8
rev
=
0
;
hostbridge
=
pci_find_subsys
(
PCI_VENDOR_ID_INTEL
,
PCI_DEVICE_ID_INTEL_82815_MC
,
...
...
@@ -212,7 +209,7 @@ static unsigned int speedstep_detect_chipset (void)
if
(
!
hostbridge
)
return
2
;
/* 2-M */
pci_read_config_byte
(
hostbridge
,
PCI_REVISION_ID
,
&
rev
);
if
(
rev
<
5
)
{
dprintk
(
KERN_INFO
"cpufreq: hostbridge does not support speedstep
\n
"
);
...
...
@@ -228,8 +225,8 @@ static unsigned int speedstep_detect_chipset (void)
static
unsigned
int
speedstep_get
(
unsigned
int
cpu
)
{
unsigned
int
speed
;
cpumask_t
cpus_allowed
,
affected_cpu_map
;
unsigned
int
speed
;
cpumask_t
cpus_allowed
,
affected_cpu_map
;
/* only run on CPU to be set, or on its sibling */
cpus_allowed
=
current
->
cpus_allowed
;
...
...
@@ -256,7 +253,7 @@ static int speedstep_target (struct cpufreq_policy *policy,
unsigned
int
target_freq
,
unsigned
int
relation
)
{
unsigned
int
newstate
=
0
;
unsigned
int
newstate
=
0
;
struct
cpufreq_freqs
freqs
;
cpumask_t
cpus_allowed
,
affected_cpu_map
;
int
i
;
...
...
@@ -318,9 +315,9 @@ static int speedstep_verify (struct cpufreq_policy *policy)
static
int
speedstep_cpu_init
(
struct
cpufreq_policy
*
policy
)
{
int
result
=
0
;
unsigned
int
speed
;
cpumask_t
cpus_allowed
,
affected_cpu_map
;
int
result
=
0
;
unsigned
int
speed
;
cpumask_t
cpus_allowed
,
affected_cpu_map
;
/* capability check */
...
...
@@ -342,16 +339,15 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
&
speedstep_freqs
[
SPEEDSTEP_HIGH
].
frequency
,
&
speedstep_set_state
);
set_cpus_allowed
(
current
,
cpus_allowed
);
if
(
result
)
{
if
(
result
)
return
result
;
}
/* get current speed setting */
speed
=
speedstep_get
(
policy
->
cpu
);
if
(
!
speed
)
return
-
EIO
;
dprintk
(
KERN_INFO
"cpufreq: currently at %s speed setting - %i MHz
\n
"
,
dprintk
(
KERN_INFO
"cpufreq: currently at %s speed setting - %i MHz
\n
"
,
(
speed
==
speedstep_freqs
[
SPEEDSTEP_LOW
].
frequency
)
?
"low"
:
"high"
,
(
speed
/
1000
));
...
...
@@ -383,14 +379,14 @@ static struct freq_attr* speedstep_attr[] = {
static
struct
cpufreq_driver
speedstep_driver
=
{
.
name
=
"speedstep-ich"
,
.
verify
=
speedstep_verify
,
.
target
=
speedstep_target
,
.
init
=
speedstep_cpu_init
,
.
exit
=
speedstep_cpu_exit
,
.
get
=
speedstep_get
,
.
owner
=
THIS_MODULE
,
.
attr
=
speedstep_attr
,
.
name
=
"speedstep-ich"
,
.
verify
=
speedstep_verify
,
.
target
=
speedstep_target
,
.
init
=
speedstep_cpu_init
,
.
exit
=
speedstep_cpu_exit
,
.
get
=
speedstep_get
,
.
owner
=
THIS_MODULE
,
.
attr
=
speedstep_attr
,
};
...
...
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