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Kirill Smelkov
linux
Commits
27e45c6a
Commit
27e45c6a
authored
Feb 10, 2004
by
Dave Jones
Committed by
Dave Jones
Feb 10, 2004
Browse files
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Plain Diff
[CPUFREQ] powernow-k8 printk cleanups from Pavel.
parent
e9e4f3bb
Changes
1
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Showing
1 changed file
with
38 additions
and
50 deletions
+38
-50
arch/i386/kernel/cpu/cpufreq/powernow-k8.c
arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+38
-50
No files found.
arch/i386/kernel/cpu/cpufreq/powernow-k8.c
View file @
27e45c6a
...
...
@@ -31,7 +31,7 @@
#define PFX "powernow-k8: "
#define BFX PFX "BIOS error: "
#define VERSION "version 1.00.08
- September 26, 2003
"
#define VERSION "version 1.00.08
a
"
#include "powernow-k8.h"
#ifdef CONFIG_PREEMPT
...
...
@@ -90,25 +90,27 @@ convert_fid_to_vco_fid(u32 fid)
}
}
/* Return 1 if the pending bit is set. Unless we are actually just told the */
/* processor to transition a state, seeing this bit set is really bad news. */
/*
* Return 1 if the pending bit is set. Unless we are actually just told the
* processor to transition a state, seeing this bit set is really bad news.
*/
static
inline
int
pending_bit_stuck
(
void
)
{
u32
lo
;
u32
hi
;
u32
lo
,
hi
;
rdmsr
(
MSR_FIDVID_STATUS
,
lo
,
hi
);
return
lo
&
MSR_S_LO_CHANGE_PENDING
?
1
:
0
;
}
/* Update the global current fid / vid values from the status msr. Returns 1 */
/* on error. */
/*
* Update the global current fid / vid values from the status msr. Returns 1
* on error.
*/
static
int
query_current_values_with_pending_wait
(
void
)
{
u32
lo
;
u32
hi
;
u32
lo
,
hi
;
u32
i
=
0
;
lo
=
MSR_S_LO_CHANGE_PENDING
;
...
...
@@ -223,9 +225,11 @@ write_new_vid(u32 vid)
return
0
;
}
/* Reduce the vid by the max of step or reqvid. */
/* Decreasing vid codes represent increasing voltages : */
/* vid of 0 is 1.550V, vid of 0x1e is 0.800V, vid of 0x1f is off. */
/*
* Reduce the vid by the max of step or reqvid.
* Decreasing vid codes represent increasing voltages:
* vid of 0 is 1.550V, vid of 0x1e is 0.800V, vid of 0x1f is off.
*/
static
int
decrease_vid_code_by_step
(
u32
reqvid
,
u32
step
)
{
...
...
@@ -268,8 +272,10 @@ transition_fid_vid(u32 reqfid, u32 reqvid)
return
0
;
}
/* Phase 1 - core voltage transition ... setup appropriate voltage for the */
/* fid transition. */
/*
* Phase 1 - core voltage transition ... setup appropriate voltage for the
* fid transition.
*/
static
inline
int
core_voltage_pre_transition
(
u32
reqvid
)
{
...
...
@@ -452,7 +458,9 @@ check_supported_cpu(void)
}
if
(
c
->
x86_vendor
!=
X86_VENDOR_AMD
)
{
#ifdef MODULE
printk
(
KERN_INFO
PFX
"Not an AMD processor
\n
"
);
#endif
return
0
;
}
...
...
@@ -485,9 +493,7 @@ check_supported_cpu(void)
return
0
;
}
printk
(
KERN_INFO
PFX
"Found AMD Athlon 64 / Opteron processor "
"supporting p-state transitions
\n
"
);
printk
(
KERN_INFO
PFX
"Found AMD64 processor supporting PowerNow ("
VERSION
")
\n
"
);
return
1
;
}
...
...
@@ -566,33 +572,19 @@ find_psb_table(void)
}
vstable
=
psb
->
voltagestabilizationtime
;
printk
(
KERN_INFO
PFX
"voltage stable time: %d (units 20us)
\n
"
,
vstable
);
dprintk
(
KERN_DEBUG
PFX
"flags2: 0x%x
\n
"
,
psb
->
flags2
);
rvo
=
psb
->
flags2
&
3
;
irt
=
((
psb
->
flags2
)
>>
2
)
&
3
;
mvs
=
((
psb
->
flags2
)
>>
4
)
&
3
;
vidmvs
=
1
<<
mvs
;
batps
=
((
psb
->
flags2
)
>>
6
)
&
3
;
printk
(
KERN_INFO
PFX
"p states on battery: %d "
,
batps
);
switch
(
batps
)
{
case
0
:
printk
(
"- all available
\n
"
);
break
;
case
1
:
printk
(
"- only the minimum
\n
"
);
break
;
case
2
:
printk
(
"- only the 2 lowest
\n
"
);
break
;
case
3
:
printk
(
"- only the 3 lowest
\n
"
);
break
;
}
printk
(
KERN_INFO
PFX
"ramp voltage offset: %d
\n
"
,
rvo
);
printk
(
KERN_INFO
PFX
"isochronous relief time: %d
\n
"
,
irt
);
printk
(
KERN_INFO
PFX
"maximum voltage step: %d
\n
"
,
mvs
);
printk
(
KERN_INFO
PFX
"voltage stable in %d usec"
,
vstable
*
20
);
if
(
batps
)
printk
(
", only %d lowest states on battery"
,
batps
);
printk
(
", ramp voltage offset: %d"
,
rvo
);
printk
(
", isochronous relief time: %d"
,
irt
);
printk
(
", maximum voltage step: %d
\n
"
,
mvs
);
dprintk
(
KERN_DEBUG
PFX
"numpst: 0x%x
\n
"
,
psb
->
numpst
);
if
(
psb
->
numpst
!=
1
)
{
...
...
@@ -603,14 +595,13 @@ find_psb_table(void)
dprintk
(
KERN_DEBUG
PFX
"cpuid: 0x%x
\n
"
,
psb
->
cpuid
);
plllock
=
psb
->
plllocktime
;
printk
(
KERN_INFO
PFX
"pll lock time: 0x%x
\n
"
,
plllock
);
printk
(
KERN_INFO
PFX
"pll lock time: 0x%x
,
"
,
plllock
);
maxvid
=
psb
->
maxvid
;
printk
(
KERN_INFO
PFX
"maxfid: 0x%x
\n
"
,
psb
->
maxfid
);
printk
(
KERN_INFO
PFX
"maxvid: 0x%x
\n
"
,
maxvid
);
printk
(
"maxfid 0x%x (%d MHz), maxvid 0x%x
\n
"
,
psb
->
maxfid
,
find_freq_from_fid
(
psb
->
maxfid
)
,
maxvid
);
numps
=
psb
->
numpstates
;
printk
(
KERN_INFO
PFX
"numpstates: 0x%x
\n
"
,
numps
);
if
(
numps
<
2
)
{
printk
(
KERN_ERR
BFX
"no p states to transition
\n
"
);
return
-
ENODEV
;
...
...
@@ -629,7 +620,7 @@ find_psb_table(void)
"%d p-states
\n
"
,
numps
);
}
if
(
(
numps
<=
1
)
||
(
batps
<=
1
)
)
{
if
(
numps
<=
1
)
{
printk
(
KERN_ERR
PFX
"only 1 p-state to transition
\n
"
);
return
-
ENODEV
;
}
...
...
@@ -645,9 +636,8 @@ find_psb_table(void)
}
for
(
j
=
0
;
j
<
numps
;
j
++
)
{
printk
(
KERN_INFO
PFX
" %d : fid 0x%x, vid 0x%x
\n
"
,
j
,
pst
[
j
].
fid
,
pst
[
j
].
vid
);
printk
(
KERN_INFO
PFX
" %d : fid 0x%x (%d MHz), vid 0x%x
\n
"
,
j
,
pst
[
j
].
fid
,
find_freq_from_fid
(
pst
[
j
].
fid
),
pst
[
j
].
vid
);
powernow_table
[
j
].
index
=
pst
[
j
].
fid
;
/* lower 8 bits */
powernow_table
[
j
].
index
|=
(
pst
[
j
].
vid
<<
8
);
/* upper 8 bits */
powernow_table
[
j
].
frequency
=
find_freq_from_fid
(
pst
[
j
].
fid
);
...
...
@@ -660,8 +650,8 @@ find_psb_table(void)
return
-
EIO
;
}
printk
(
KERN_INFO
PFX
"currfid 0x%x, currvid 0x%x
\n
"
,
currfid
,
currvid
);
printk
(
KERN_INFO
PFX
"currfid 0x%x
(%d MHz)
, currvid 0x%x
\n
"
,
currfid
,
find_freq_from_fid
(
currfid
),
currvid
);
for
(
j
=
0
;
j
<
numps
;
j
++
)
if
((
pst
[
j
].
fid
==
currfid
)
&&
(
pst
[
j
].
vid
==
currvid
))
...
...
@@ -844,8 +834,6 @@ powernowk8_init(void)
{
int
rc
;
printk
(
KERN_INFO
PFX
VERSION
"
\n
"
);
if
(
check_supported_cpu
()
==
0
)
return
-
ENODEV
;
...
...
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