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Kirill Smelkov
linux
Commits
355edfc4
Commit
355edfc4
authored
Apr 06, 2004
by
Dave Jones
Committed by
Dave Jones
Apr 06, 2004
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Plain Diff
[CPUFREQ] Use the new fill_powernow_table() to fill struct instead of doing it inline.
parent
f52f1b29
Changes
1
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Inline
Side-by-side
Showing
1 changed file
with
23 additions
and
86 deletions
+23
-86
arch/i386/kernel/cpu/cpufreq/powernow-k8.c
arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+23
-86
No files found.
arch/i386/kernel/cpu/cpufreq/powernow-k8.c
View file @
355edfc4
...
...
@@ -509,9 +509,8 @@ static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst, u8
printk
(
KERN_ERR
PFX
"lastfid invalid
\n
"
);
return
-
EINVAL
;
}
if
(
lastfid
>
LO_FID_TABLE_TOP
)
{
if
(
lastfid
>
LO_FID_TABLE_TOP
)
printk
(
KERN_INFO
PFX
"first fid not from lo freq table
\n
"
);
}
return
0
;
}
...
...
@@ -590,10 +589,8 @@ static int fill_powernow_table(struct powernow_k8_data *data, struct pst_s *pst,
/* Find and validate the PSB/PST table in BIOS. */
static
int
find_psb_table
(
struct
powernow_k8_data
*
data
)
{
struct
cpufreq_frequency_table
*
powernow_table
;
struct
psb_s
*
psb
;
struct
pst_s
*
pst
;
unsigned
int
i
,
j
;
unsigned
int
i
;
u32
mvs
;
u8
maxvid
;
...
...
@@ -629,12 +626,9 @@ static int find_psb_table(struct powernow_k8_data *data)
data
->
vidmvs
=
1
<<
mvs
;
data
->
batps
=
((
psb
->
flags2
)
>>
6
)
&
3
;
printk
(
KERN_INFO
PFX
"voltage stable in %d usec"
,
data
->
vstable
*
20
);
if
(
data
->
batps
)
printk
(
", only %d lowest states on battery"
,
data
->
batps
);
printk
(
", ramp voltage offset: %d"
,
data
->
rvo
);
printk
(
", isochronous relief time: %d"
,
data
->
irt
);
printk
(
", maximum voltage step: %d
\n
"
,
mvs
);
dprintk
(
KERN_INFO
PFX
"ramp voltage offset: %d
\n
"
,
data
->
rvo
);
dprintk
(
KERN_INFO
PFX
"isochronous relief time: %d
\n
"
,
data
->
irt
);
dprintk
(
KERN_INFO
PFX
"maximum voltage step: %d - %x
\n
"
,
mvs
,
data
->
vidmvs
);
dprintk
(
KERN_DEBUG
PFX
"numpst: 0x%x
\n
"
,
psb
->
numpst
);
if
(
psb
->
numpst
!=
1
)
{
...
...
@@ -642,85 +636,28 @@ static int find_psb_table(struct powernow_k8_data *data)
return
-
ENODEV
;
}
dprintk
(
KERN_DEBUG
PFX
"cpuid: 0x%x
\n
"
,
psb
->
cpuid
);
data
->
plllock
=
psb
->
plllocktime
;
printk
(
KERN_INFO
PFX
"pll lock time: 0x%x, "
,
data
->
plllock
);
dprintk
(
KERN_INFO
PFX
"plllocktime: %x (units 1us)
\n
"
,
psb
->
plllocktime
);
dprintk
(
KERN_INFO
PFX
"maxfid: %x
\n
"
,
psb
->
maxfid
);
dprintk
(
KERN_INFO
PFX
"maxvid: %x
\n
"
,
psb
->
maxvid
);
maxvid
=
psb
->
maxvid
;
printk
(
"maxfid 0x%x (%d MHz), maxvid 0x%x
\n
"
,
psb
->
maxfid
,
find_freq_from_fid
(
psb
->
maxfid
),
maxvid
);
data
->
numps
=
psb
->
numpstates
;
if
(
data
->
numps
<
2
)
{
printk
(
KERN_ERR
BFX
"no p states to transition
\n
"
);
return
-
ENODEV
;
}
if
(
data
->
batps
==
0
)
{
data
->
batps
=
data
->
numps
;
}
else
if
(
data
->
batps
>
data
->
numps
)
{
printk
(
KERN_ERR
BFX
"batterypstates > numpstates
\n
"
);
data
->
batps
=
data
->
numps
;
}
else
{
printk
(
KERN_ERR
PFX
"Restricting operation to %d p-states
\n
"
,
data
->
batps
);
printk
(
KERN_ERR
PFX
"Check for an updated driver to access all "
"%d p-states
\n
"
,
data
->
numps
);
}
if
(
data
->
numps
<=
1
)
{
printk
(
KERN_ERR
PFX
"only 1 p-state to transition
\n
"
);
return
-
ENODEV
;
}
pst
=
(
struct
pst_s
*
)
(
psb
+
1
);
if
(
check_pst_table
(
data
,
pst
,
maxvid
))
return
-
EINVAL
;
powernow_table
=
kmalloc
((
sizeof
(
struct
cpufreq_frequency_table
)
*
(
data
->
numps
+
1
)),
GFP_KERNEL
);
if
(
!
powernow_table
)
{
printk
(
KERN_ERR
PFX
"powernow_table memory alloc failure
\n
"
);
return
-
ENOMEM
;
}
for
(
j
=
0
;
j
<
psb
->
numpstates
;
j
++
)
{
powernow_table
[
j
].
index
=
pst
[
j
].
fid
;
/* lower 8 bits */
powernow_table
[
j
].
index
|=
(
pst
[
j
].
vid
<<
8
);
/* upper 8 bits */
}
/* If you want to override your frequency tables, this
is right place. */
for
(
j
=
0
;
j
<
data
->
numps
;
j
++
)
{
powernow_table
[
j
].
frequency
=
find_freq_from_fid
(
powernow_table
[
j
].
index
&
0xff
)
*
1000
;
printk
(
KERN_INFO
PFX
" %d : fid 0x%x (%d MHz), vid 0x%x
\n
"
,
j
,
powernow_table
[
j
].
index
&
0xff
,
powernow_table
[
j
].
frequency
/
1000
,
powernow_table
[
j
].
index
>>
8
);
}
powernow_table
[
data
->
numps
].
frequency
=
CPUFREQ_TABLE_END
;
powernow_table
[
data
->
numps
].
index
=
0
;
if
(
query_current_values_with_pending_wait
(
data
))
{
kfree
(
powernow_table
);
return
-
EIO
;
}
printk
(
KERN_INFO
PFX
"currfid 0x%x (%d MHz), currvid 0x%x
\n
"
,
data
->
currfid
,
find_freq_from_fid
(
data
->
currfid
),
data
->
currvid
);
for
(
j
=
0
;
j
<
data
->
numps
;
j
++
)
if
((
pst
[
j
].
fid
==
data
->
currfid
)
&&
(
pst
[
j
].
vid
==
data
->
currvid
))
return
0
;
printk
(
KERN_ERR
BFX
"currfid/vid do not match PST, ignoring
\n
"
);
return
0
;
}
printk
(
KERN_ERR
BFX
"no PSB
\n
"
);
dprintk
(
KERN_INFO
PFX
"numpstates: %x
\n
"
,
data
->
numps
);
return
fill_powernow_table
(
data
,
(
struct
pst_s
*
)(
psb
+
1
),
maxvid
);
}
/*
* If you see this message, complain to BIOS manufacturer. If
* he tells you "we do not support Linux" or some similar
* nonsense, remember that Windows 2000 uses the same legacy
* mechanism that the old Linux PSB driver uses. Tell them it
* is broken with Windows 2000.
*
* The reference to the AMD documentation is chapter 9 in the
* BIOS and Kernel Developer's Guide, which is available on
* www.amd.com
*/
printk
(
KERN_ERR
PFX
"BIOS error - no PSB
\n
"
);
return
-
ENODEV
;
}
...
...
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