Pentium IIIM not recognised

Pentium IIIM not recognised

[Ivan Kanis]

Hello,

I applied the patch on my 2.4.21 kernel from Dave Jones's home
page. The name of the patch was cpufreq-2.4.21-2.gz.

I have set the following options when compiling the kernel:
[*] CPU Frequency scaling
[*]  CPU frequency table helpers
[*]  "userspace" for userspace frequency scaling
<*>  Intel Speedstep (ICH)

dmesg | grep -i cpu

Initializing CPU#0
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 512K
CPU:     After generic, caps: 0383f9ff 00000000 00000000 00000000
CPU:             Common caps: 0383f9ff 00000000 00000000 00000000
CPU: Intel(R) Pentium(R) III Mobile CPU      1000MHz stepping 01
cpufreq: Intel(R) SpeedStep(TM) for this chipset not (yet) available.

I find that kind of strange. Shouldn't my processor be supported?
Should I use a differrent patch.

Thanks in advance for any explanations,

Ivan Kanis

Re: Pentium IIIM not recognised

[Ducrot Bruno]

On Tue, Sep 16, 2003 at 12:58:45AM +0200, Ivan Kanis wrote:
> Hello,
> 
> I applied the patch on my 2.4.21 kernel from Dave Jones's home
> page. The name of the patch was cpufreq-2.4.21-2.gz.
> 
> I have set the following options when compiling the kernel:
> [*] CPU Frequency scaling
> [*]  CPU frequency table helpers
> [*]  "userspace" for userspace frequency scaling
> <*>  Intel Speedstep (ICH)
> 

could you post lspci -v please?

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.

Re: Pentium IIIM not recognised

[Ivan Kanis]

    Ducrot> could you post lspci -v please?

Bien sur!

00:00.0 Host bridge: Intel Corp. 82815 815 Chipset Host Bridge and Memory Controller Hub (rev 04)
	Flags: bus master, fast devsel, latency 0
	Memory at e8000000 (32-bit, prefetchable) [size=64M]
	Capabilities: <available only to root>

00:01.0 PCI bridge: Intel Corp.: Unknown device 1131 (rev 04) (prog-if 00 [Normal decode])
	Flags: bus master, 66Mhz, fast devsel, latency 32
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
	I/O behind bridge: 0000c000-0000cfff
	Memory behind bridge: fc000000-fdffffff
	Prefetchable memory behind bridge: e0000000-e7ffffff

00:1e.0 PCI bridge: Intel Corp. 82820 820 (Camino 2) Chipset PCI (-M) (rev 03) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=02, subordinate=10, sec-latency=32
	I/O behind bridge: 0000d000-0000ffff
	Memory behind bridge: f2000000-fbffffff

00:1f.0 ISA bridge: Intel Corp. 82820 820 (Camino 2) Chipset ISA Bridge (ICH2-M) (rev 03)
	Flags: bus master, medium devsel, latency 0

00:1f.1 IDE interface: Intel Corp. 82820 820 (Camino 2) Chipset IDE U100 (-M) (rev 03) (prog-if 80 [Master])
	Subsystem: Intel Corp.: Unknown device 4541
	Flags: bus master, medium devsel, latency 0
	I/O ports at bfa0 [size=16]

00:1f.2 USB Controller: Intel Corp. 82820 820 (Camino 2) Chipset USB (Hub A) (rev 03) (prog-if 00 [UHCI])
	Subsystem: Intel Corp.: Unknown device 4541
	Flags: bus master, medium devsel, latency 0, IRQ 10
	I/O ports at bce0 [size=32]

01:00.0 VGA compatible controller: ATI Technologies Inc: Unknown device 4c66 (rev 01) (prog-if 00 [VGA])
	Subsystem: Dell Computer Corporation: Unknown device 00e6
	Flags: bus master, VGA palette snoop, stepping, 66Mhz, medium devsel, latency 32, IRQ 11
	Memory at e0000000 (32-bit, prefetchable) [size=128M]
	I/O ports at cc00 [size=256]
	Memory at fcff0000 (32-bit, non-prefetchable) [size=64K]
	Expansion ROM at 80000000 [disabled] [size=128K]
	Capabilities: <available only to root>

02:03.0 Multimedia audio controller: ESS Technology ES1983S Maestro-3i PCI Audio Accelerator (rev 10)
	Subsystem: Dell Computer Corporation: Unknown device 00e6
	Flags: bus master, medium devsel, latency 32, IRQ 5
	I/O ports at dc00 [size=256]
	Memory at f6ffe000 (32-bit, non-prefetchable) [size=8K]
	Capabilities: <available only to root>

02:06.0 PCI bridge: Action Tec Electronics Inc: Unknown device 0100 (rev 11) (prog-if 00 [Normal decode])
	Flags: bus master, medium devsel, latency 32
	Bus: primary=02, secondary=08, subordinate=08, sec-latency=32
	I/O behind bridge: 0000e000-0000efff
	Memory behind bridge: f8000000-f9ffffff
	Capabilities: <available only to root>

02:0f.0 CardBus bridge: Texas Instruments PCI4451 PC card Cardbus Controller
	Subsystem: Dell Computer Corporation: Unknown device 00e6
	Flags: bus master, medium devsel, latency 168, IRQ 10
	Memory at 10000000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=02, secondary=09, subordinate=0c, sec-latency=176
	Memory window 0: 10400000-107ff000 (prefetchable)
	Memory window 1: 10800000-10bff000
	I/O window 0: 00004000-000040ff
	I/O window 1: 00004400-000044ff
	16-bit legacy interface ports at 0001

02:0f.1 CardBus bridge: Texas Instruments PCI4451 PC card Cardbus Controller
	Subsystem: Dell Computer Corporation: Unknown device 00e6
	Flags: bus master, medium devsel, latency 168, IRQ 10
	Memory at 10001000 (32-bit, non-prefetchable) [size=4K]
	Bus: primary=02, secondary=0d, subordinate=10, sec-latency=176
	Memory window 0: 10c00000-10fff000 (prefetchable)
	Memory window 1: 11000000-113ff000
	I/O window 0: 00004800-000048ff
	I/O window 1: 00004c00-00004cff
	16-bit legacy interface ports at 0001

02:0f.2 FireWire (IEEE 1394): Texas Instruments: Unknown device 8027 (prog-if 10 [OHCI])
	Subsystem: Dell Computer Corporation: Unknown device 00e6
	Flags: bus master, medium devsel, latency 32, IRQ 10
	Memory at f6ffd800 (32-bit, non-prefetchable) [size=2K]
	Memory at f6ff8000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: <available only to root>

08:04.0 Ethernet controller: Intel Corp. 82557 [Ethernet Pro 100] (rev 08)
	Subsystem: Action Tec Electronics Inc: Unknown device 1100
	Flags: bus master, medium devsel, latency 32, IRQ 10
	Memory at f8fff000 (32-bit, non-prefetchable) [size=4K]
	I/O ports at ecc0 [size=64]
	Memory at f8e00000 (32-bit, non-prefetchable) [size=1M]
	Expansion ROM at f9000000 [disabled] [size=1M]
	Capabilities: <available only to root>

08:08.0 Communication controller: Lucent Microelectronics WinModem 56k (rev 01)
	Subsystem: Action Tec Electronics Inc: Unknown device 2400
	Flags: bus master, medium devsel, latency 0, IRQ 10
	Memory at f8ffec00 (32-bit, non-prefetchable) [size=256]
	I/O ports at ecb8 [size=8]
	I/O ports at e800 [size=256]
	Capabilities: <available only to root>

09:00.0 Ethernet controller: Xircom Cardbus Ethernet 10/100 (rev 03)
	Subsystem: Xircom Cardbus Ethernet 10/100
	Flags: medium devsel, IRQ 10
	I/O ports at 4000 [size=128]
	Memory at 10800000 (32-bit, non-prefetchable) [size=2K]
	Memory at 10800800 (32-bit, non-prefetchable) [size=2K]
	Expansion ROM at 10400000 [size=16K]
	Capabilities: <available only to root>

09:00.1 Serial controller: Xircom Cardbus Ethernet + 56k Modem (rev 03) (prog-if 02 [16550])
	Subsystem: Xircom CBEM56G-100 Ethernet + 56k Modem
	Flags: medium devsel, IRQ 10
	I/O ports at 4080 [size=8]
	Memory at 10801000 (32-bit, non-prefetchable) [size=2K]
	Memory at 10801800 (32-bit, non-prefetchable) [size=2K]
	Expansion ROM at 10404000 [size=16K]
	Capabilities: <available only to root>

Re: Pentium IIIM not recognised

[Ducrot Bruno]

On Tue, Sep 16, 2003 at 12:09:13PM +0200, Ivan Kanis wrote:
> 
>     Ducrot> could you post lspci -v please?
> 
> Bien sur!
> 

Could you decomment that line, in arch/i386/kernel/speedstep-ich.c :

//#define SPEEDSTEP_DEBUG

Then try to replace:

               pci_read_config_byte(hostbridge, PCI_REVISION_ID, &rev);
               if (rev < 5) {
	       ^^^^^^^^^^^^
	    here, change to something like:
	       if (rev < 4) {


	       dprintk(KERN_INFO "cpufreq: hostbridge does not support speedstep\n");
                       speedstep_chipset_dev = NULL;
                       return 0;
               }


Unfortunately, if you have a dell i8k, speedstep-ich will not work.
If you don't have such a dell, perhaps it may work.

As an alternative, you can try cpufreq-smi from cvs.

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.

Re: Pentium IIIM not recognised

[AthlonRob]

On Tue, 2003-09-16 at 03:26, Ducrot Bruno wrote:

> Unfortunately, if you have a dell i8k, speedstep-ich will not work.
> If you don't have such a dell, perhaps it may work.

Is this documented somewhere... and why, exactly, is that?

I wondered why my speedstep-ich wasn't working... I guess that's why. 
:-)

The ACPI cpufreq module seems to work, though.

Rob

Re: Pentium IIIM not recognised

[Ducrot Bruno]

On Tue, Sep 16, 2003 at 11:39:44AM -0700, AthlonRob wrote:
> On Tue, 2003-09-16 at 03:26, Ducrot Bruno wrote:
> 
> > Unfortunately, if you have a dell i8k, speedstep-ich will not work.
> > If you don't have such a dell, perhaps it may work.
> 
> Is this documented somewhere... and why, exactly, is that?

Who knows.  SpeedStep(tm)(*) technology, especially the old one,
is under NDA.
Therefore, ask Dell or Intel.  Not me.


(*)SpeedStep is a trademark of Intel(r).

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.

Re: Pentium IIIM not recognised

[Ivan Kanis]

    Ducrot> Unfortunately, if you have a dell i8k, speedstep-ich will
    Ducrot> not work.  If you don't have such a dell, perhaps it may
    Ducrot> work.

Alas it is a dell i8k :(

    Ducrot> As an alternative, you can try cpufreq-smi from cvs.

Would that one work? Could you tell me where the CVS server is
located?

I would like to explain what I am trying to do. I don't want to hear
the fan anymore. I don't mind if my systems runs 3 times slower I just
want to focus on my work and the fan is annoying. Is there any other
way than cpufreq to achieve this?

Thank you,

Ivan

Re: Pentium IIIM not recognised

[Ducrot Bruno]

On Tue, Sep 16, 2003 at 09:33:29PM +0200, Ivan Kanis wrote:
>     Ducrot> Unfortunately, if you have a dell i8k, speedstep-ich will
>     Ducrot> not work.  If you don't have such a dell, perhaps it may
>     Ducrot> work.
> 
> Alas it is a dell i8k :(
> 
>     Ducrot> As an alternative, you can try cpufreq-smi from cvs.
> 
> Would that one work? Could you tell me where the CVS server is
> located?
> 
> I would like to explain what I am trying to do. I don't want to hear
> the fan anymore. I don't mind if my systems runs 3 times slower I just
> want to focus on my work and the fan is annoying. Is there any other
> way than cpufreq to achieve this?
> 

For cpufreq cvs:
cvs -d:pserver:cvs@pubcvs.arm.linux.org.uk:/mnt/src/cvsroot co -rLINUX_2_4 cpufreq

then:
cd cpufreq
./patchin.sh /path/to/kernel

Please note that you need at least 2.4.22, not 2.4.21 (well, 2.4.21 should
be OK, but there are some rejects, just adding them by hand is easy, I
guess).

You may try also acpi for his idling stuff, which shall save more power
comsuption of the processor, and you may have ability to throtte the CPU.
AFAIR, there is no thermal zone in the i8k dsdt, but my memory may be
wrong, though.

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.

Re: Pentium IIIM not recognised

[Ivan Kanis]

    Bruno> For cpufreq cvs: cvs
    Bruno> -d:pserver:cvs@pubcvs.arm.linux.org.uk:/mnt/src/cvsroot co
    Bruno> -rLINUX_2_4 cpufreq
    Bruno> then: cd cpufreq ./patchin.sh /path/to/kernel

Ok I have done that on 2.4.22 and it seems to be happy at boot up:

speedstep-smi: IST_SMI: signature:0x47534943, command:0x008200b2, event:0x000000
00, perf_level:0x00000101
cpufreq: currently at high speed setting - 1000 MHz

But when I try to speed down the laptop my settings don't seem to
take:

dell:~# echo "77%77%powersave" > /proc/cpufreq 
dell:~# cat /proc/cpufreq 
          minimum CPU frequency  -  maximum CPU frequency  -  policy
CPU  0       733000 kHz ( 73 %)  -    1000000 kHz (100 %)  -  performance

I am missing something or is just not working ?

    Bruno> You may try also acpi for his idling stuff, which shall
    Bruno> save more power comsuption of the processor, and you may
    Bruno> have ability to throtte the CPU.  AFAIR, there is no
    Bruno> thermal zone in the i8k dsdt, but my memory may be wrong,
    Bruno> though.

I have played a little with the ACPI stuff but it has a bit of a
drawback. I can't hibernate my laptop anymore since it's not supported
yet. You are right that there is no thermal zone but that information
can be had with the i8k.c code.

I could do something drastic and change the CPU of this beast. What
would people recommend for a cool laptop? Cool as in temperature, of
course! Would the VIA C3 work?

Sorry for asking too many questions.

Ivan

Re: Pentium IIIM not recognised

[Hiroshi Miura]

Hi, Ivan.

At Mon, 22 Sep 2003 00:29:09 +0200,
Ivan Kanis wrote:
> Ok I have done that on 2.4.22 and it seems to be happy at boot up:
> 
> speedstep-smi: IST_SMI: signature:0x47534943, command:0x008200b2, event:0x000000
> 00, perf_level:0x00000101
> cpufreq: currently at high speed setting - 1000 MHz

Nice.

That's first time I see  'perf_level' is 0x00000101. 
Many machines have 0x07d00000 or 0x07d00100. 
I assumes the bit 1 means that it is not support an event notification. 
Bit 8 means it is not supports SMI function 'get_freqs'. 

> But when I try to speed down the laptop my settings don't seem to
> take:
> 
> dell:~# echo "77%77%powersave" > /proc/cpufreq 
> dell:~# cat /proc/cpufreq 
>           minimum CPU frequency  -  maximum CPU frequency  -  policy
> CPU  0       733000 kHz ( 73 %)  -    1000000 kHz (100 %)  -  performance
> 
> I am missing something or is just not working ?

Can you try these?

# echo "0:733000:1000000:powersave" > /proc/cpufreq

# echo "70%100%powersave" > /proc/cpufreq

Limit must be within speedstep_low_freq and speedstep_high_freq, with
at least one border included.

If it don't work, I will re-consider the speedstep driver code.

-- 
Hiroshi Miura  --- http://www.da-cha.org/ 
NTTDATA Corp. Marketing & Business Strategy Planning Dept. --- miurahr@nttdata.co.jp 
Key fingerprint = 9117 9407 5684 FBF1 4063  15B4 401D D077 04AB 8617
-- My hacking life is happy as the day is long

Re: Pentium IIIM not recognised

[Ivan Kanis]

    Hiroshi> That's first time I see 'perf_level' is 0x00000101.  Many
    Hiroshi> machines have 0x07d00000 or 0x07d00100.  I assumes the
    Hiroshi> bit 1 means that it is not support an event notification.
    Hiroshi> Bit 8 means it is not supports SMI function 'get_freqs'.

It sounds like it's not a very good CPU.

    Hiroshi> # echo "0:733000:1000000:powersave" > /proc/cpufreq

It works very nicely:

dell:~# bogomips 
Calibrating delay loop.. ok - 984.00 BogoMips
dell:~# echo "0:733000:1000000:powersave" > /proc/cpufreq
dell:~# bogomips 
Calibrating delay loop.. ok - 714.00 BogoMips

Thank you!

Ivan