Cpufreq for 2.4: what is the best source?

Cpufreq for 2.4: what is the best source?

[Bas Mevissen]

Hi all,

What is the best source for CPUFREQ for a 2.4.22-rc2 kernels? Is it the 
2.4.22-rc2-ac1 kernel version or the 2.4 tarballs on 
ftp://ftp.linux.org.uk/pub/linux/cpufreq/ or the LINUX_2_4 tag from CVS?

(BTW I want to use it with a P4-M CPU)

Does someone know when codemonkey comes on-line again? Or is there 
another place where I can find up to date documentation?

Regards,

Bas.

Re: Cpufreq for 2.4: what is the best source?

[Dominik Brodowski]

On Fri, Aug 15, 2003 at 12:18:32PM +0200, Bas Mevissen wrote:
> 
> Hi all,
> 
> What is the best source for CPUFREQ for a 2.4.22-rc2 kernels? Is it the 
> 2.4.22-rc2-ac1 kernel version or the 2.4 tarballs on 
> ftp://ftp.linux.org.uk/pub/linux/cpufreq/ or the LINUX_2_4 tag from CVS?

Either 2.4.22-rc2-ac1 or the latest 2.4 backport on www.codemonkey.org.uk -
but as that's offline at the moment, I'd try -ac. Or 2.6.0-test3-bk-current
:)

> Does someone know when codemonkey comes on-line again? Or is there 
> another place where I can find up to date documentation?
IIRC there's zero extra documentation on "codemonkey.org.uk" 
The best documentation is within the linux kernel sources [2.4.-patched,
2.4-ac, or 2.6.] in Documentation/cpu-freq/

	Dominik

Re: Cpufreq for 2.4: what is the best source?

[Georg Sauthoff]

On Friday 15 August 2003 17:41, Dominik Brodowski wrote:

Hi,

> On Fri, Aug 15, 2003 at 12:18:32PM +0200, Bas Mevissen wrote:

> > What is the best source for CPUFREQ for a 2.4.22-rc2 kernels? Is it the
> > 2.4.22-rc2-ac1 kernel version or the 2.4 tarballs on
> > ftp://ftp.linux.org.uk/pub/linux/cpufreq/ or the LINUX_2_4 tag from CVS?

> Either 2.4.22-rc2-ac1 or the latest 2.4 backport on www.codemonkey.org.uk -
> but as that's offline at the moment, I'd try -ac. Or 2.6.0-test3-bk-current
>
> :)

unfortunely I can't use -ac 2.4. Kernels ... (because of my hardware and not 
2.6. because of a Cisco VPN). Is (or was) www.codemonkey.org.uk really the 
only place, to get the cpufreq backports against vanilla 2.4. kernels?

What about cvs? And the ftp location mentioned by Bas Mevissen is outdated?

BTW I need cpufreq for Pentium M.

Regards
Georg Sauthoff

Re: Cpufreq for 2.4: what is the best source?

[Russell King]

On Fri, Aug 15, 2003 at 06:53:30PM +0200, Georg Sauthoff wrote:
> unfortunely I can't use -ac 2.4. Kernels ... (because of my hardware and not 
> 2.6. because of a Cisco VPN). Is (or was) www.codemonkey.org.uk really the 
> only place, to get the cpufreq backports against vanilla 2.4. kernels?
> 
> What about cvs? And the ftp location mentioned by Bas Mevissen is outdated?

The ftp is updated each night.  Whether it contains anything useful
depends on whether people check the changes into the cvs tree(s).

If people want a 2.4-ac snapshot and the maintainers are willing to
create a cvs branch for them, its pretty simple to add it to nightly
scripts.

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html

Re: Cpufreq for 2.4: what is the best source?

[Dominik Brodowski]

On Fri, Aug 15, 2003 at 06:53:30PM +0200, Georg Sauthoff wrote:
> On Friday 15 August 2003 17:41, Dominik Brodowski wrote:
> 
> Hi,
> 
> > On Fri, Aug 15, 2003 at 12:18:32PM +0200, Bas Mevissen wrote:
> 
> > > What is the best source for CPUFREQ for a 2.4.22-rc2 kernels? Is it the
> > > 2.4.22-rc2-ac1 kernel version or the 2.4 tarballs on
> > > ftp://ftp.linux.org.uk/pub/linux/cpufreq/ or the LINUX_2_4 tag from CVS?
> 
> > Either 2.4.22-rc2-ac1 or the latest 2.4 backport on www.codemonkey.org.uk -
> > but as that's offline at the moment, I'd try -ac. Or 2.6.0-test3-bk-current
> >
> > :)
> 
> unfortunely I can't use -ac 2.4. Kernels ... (because of my hardware and not 
> 2.6. because of a Cisco VPN). Is (or was) www.codemonkey.org.uk really the 
> only place, to get the cpufreq backports against vanilla 2.4. kernels?

Yes.

> What about cvs? And the ftp location mentioned by Bas Mevissen is outdated?

The ftp location takes the latest cvs sources. And the CVS sources aren't
kept up to date for the 2.4. backports.

	Dominik

Re: Cpufreq for 2.4: what is the best source?

[Bas Mevissen]

Dominik Brodowski wrote:

> 
> Either 2.4.22-rc2-ac1 or the latest 2.4 backport on www.codemonkey.org.uk -
> but as that's offline at the moment, I'd try -ac. Or 2.6.0-test3-bk-current
> :)
> 

Can someone please make a backport of CPUFREQ to 2.4.22-rc2? The -ac has 
   a new scheduler (backport from 2.6?) and that breaks swsusp for the 
moment. So I would like to go for 2.4.22-rc2 (or later) with the -ac 
patches.

It seems that more people are waiting for a 2.4.22+swsusp+cpufreq, so it 
is not a waste of time.

Regards,

Bas.

Re: Cpufreq for 2.4: what is the best source?

[Dominik Brodowski]

On Mon, Aug 18, 2003 at 11:37:24AM +0200, Bas Mevissen wrote:
> Dominik Brodowski wrote:
> 
> >
> >Either 2.4.22-rc2-ac1 or the latest 2.4 backport on www.codemonkey.org.uk -
> >but as that's offline at the moment, I'd try -ac. Or 2.6.0-test3-bk-current
> >:)
> >
> 
> Can someone please make a backport of CPUFREQ to 2.4.22-rc2? The -ac has 
>   a new scheduler (backport from 2.6?) and that breaks swsusp for the 
> moment. So I would like to go for 2.4.22-rc2 (or later) with the -ac 
> patches.
> 
> It seems that more people are waiting for a 2.4.22+swsusp+cpufreq, so it 
> is not a waste of time.

Already done. As Dave's site isn't yet back online, it can temporarily be
accessed at
http://www.brodo.de/cpufreq_tmp/cpufreq-2.4.22-rc2-1__.gz

	Dominik

Re: Cpufreq for 2.4: what is the best source?

[Bas Mevissen]

[-- Attachment #1: Type: text/plain, Size: 1820 bytes --]

On Monday 18 August 2003 19:53, Dominik Brodowski wrote:
>
> Already done. As Dave's site isn't yet back online, it can temporarily be
> accessed at
> http://www.brodo.de/cpufreq_tmp/cpufreq-2.4.22-rc2-1__.gz
>

Hmmm. A few problems with this patch:

1) double quotes "userspace" governor configuration text confuse make 
menuconfig. So it shows no help text. Escaping them didn't help, so I made a 
new text. Note that  this is a problem in the -ac too.

--- linux-2.4.22-rc2-sgm1/arch/i386/config.in.orig	2003-08-18 
19:37:12.000000000 +0200
+++ linux-2.4.22-rc2-sgm1/arch/i386/config.in	2003-08-18 20:32:59.000000000 
+0200
@@ -201,7 +201,7 @@
    bool ' CPU frequency table helpers' CONFIG_CPU_FREQ_TABLE
    define_bool CONFIG_CPU_FREQ_PROC_INTF y
    comment 'CPUFreq governors'
-   bool ' "userspace" for userspace frequency scaling' 
CONFIG_CPU_FREQ_GOV_USERSPACE
+   bool ' Support for governing from userspace' CONFIG_CPU_FREQ_GOV_USERSPACE
    define_bool CONFIG_CPU_FREQ_24_API y
    comment 'CPUFreq processor drivers'
    dep_tristate ' AMD Mobile K6-2/K6-3 PowerNow!' CONFIG_X86_POWERNOW_K6 
$CONFIG_CPU_FREQ_TABLE

2) Compile error from speedstep-lib.c caused by exported symbols. Patch below:

--- linux-2.4.22-rc2-sgm1/arch/i386/kernel/Makefile.orig	2003-08-18 
20:58:28.000000000 +0200
+++ linux-2.4.22-rc2-sgm1/arch/i386/kernel/Makefile	2003-08-18 
21:56:15.000000000 +0200
@@ -14,7 +14,7 @@
 
 O_TARGET := kernel.o
 
-export-objs     := mca.o mtrr.o msr.o cpuid.o microcode.o i386_ksyms.o time.o 
setup.o
+export-objs     := mca.o mtrr.o msr.o cpuid.o microcode.o i386_ksyms.o time.o 
setup.o speedstep-lib.o
 
 obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \
 		ptrace.o i8259.o ioport.o ldt.o setup.o time.o sys_i386.o \

Files attached for convieniance :-)

Regards,

Bas.

[-- Attachment #2: cpufreq_config.diff --]
[-- Type: text/x-diff, Size: 670 bytes --]

--- linux-2.4.22-rc2-sgm1/arch/i386/config.in.orig	2003-08-18 19:37:12.000000000 +0200
+++ linux-2.4.22-rc2-sgm1/arch/i386/config.in	2003-08-18 20:32:59.000000000 +0200
@@ -201,7 +201,7 @@
    bool ' CPU frequency table helpers' CONFIG_CPU_FREQ_TABLE
    define_bool CONFIG_CPU_FREQ_PROC_INTF y
    comment 'CPUFreq governors'
-   bool ' "userspace" for userspace frequency scaling' CONFIG_CPU_FREQ_GOV_USERSPACE
+   bool ' Support for governing from userspace' CONFIG_CPU_FREQ_GOV_USERSPACE
    define_bool CONFIG_CPU_FREQ_24_API y
    comment 'CPUFreq processor drivers'
    dep_tristate ' AMD Mobile K6-2/K6-3 PowerNow!' CONFIG_X86_POWERNOW_K6 $CONFIG_CPU_FREQ_TABLE

[-- Attachment #3: cpufreq_speedstep_lib_build_fix.diff --]
[-- Type: text/x-diff, Size: 552 bytes --]

--- linux-2.4.22-rc2-sgm1/arch/i386/kernel/Makefile.orig	2003-08-18 20:58:28.000000000 +0200
+++ linux-2.4.22-rc2-sgm1/arch/i386/kernel/Makefile	2003-08-18 21:56:15.000000000 +0200
@@ -14,7 +14,7 @@
 
 O_TARGET := kernel.o
 
-export-objs     := mca.o mtrr.o msr.o cpuid.o microcode.o i386_ksyms.o time.o setup.o
+export-objs     := mca.o mtrr.o msr.o cpuid.o microcode.o i386_ksyms.o time.o setup.o speedstep-lib.o
 
 obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \
 		ptrace.o i8259.o ioport.o ldt.o setup.o time.o sys_i386.o \

Re: Cpufreq for 2.4: what is the best source?

[Bas Mevissen]

Dominik Brodowski wrote:

>  
> Already done. As Dave's site isn't yet back online, it can temporarily be
> accessed at
> http://www.brodo.de/cpufreq_tmp/cpufreq-2.4.22-rc2-1__.gz
> 

How up to date is this one? It looks like it doesn't work with a ICH4 
P4-M combination. With 2.6.0-test3 it works out of the box.

With speedstep_ich.o and (..._lib.o) loaded, I get:
cd /proc/sys/cpu ; cat *
2000000 # speed_max, which is correct
0       # speed_min
0       # spped_max

BTW where can I find documentation about how to set a different policy 
with the patch above? The documentation in the tree deliberately doesn't 
detail it...

(I mean setting the policy with e.g. echo userspace >/proc/cpufreq)

Bas.

Re: Cpufreq for 2.4: what is the best source?

[Ducrot Bruno]

> (I mean setting the policy with e.g. echo userspace >/proc/cpufreq)

echo 0%100%userspace > /proc/cpufreq


-- 
Ducrot Bruno

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