On Sat, Jul 03, 2004 at 01:21:14PM +0200, Djoumé SALVETTI wrote:
> Le vendredi 07/02/04 Luis Sanjuan <[EMAIL PROTECTED]> a écrit :
> > FYI. From kernel Documentation:
> >
> > CONFIG_CPU_FREQ_PROC_INTF:
> >
> > This enables the /proc/cpufreq interface for controlling
> > CPUFreq. Please note that it is recommended to use the sysfs
> > interface instead (which is built automatically).
> >
> > CONFIG_CPU_FREQ_24_API:
> >
> > This enables the /proc/sys/cpu/ sysctl interface for controlling
> > the CPUFreq,"userspace" governor. This is the same interface
> >
> > as known from the 2.4.-kernel patches for CPUFreq, and offers
> > the same functionality as long as "userspace" is the
> >
> > selected governor for the specified CPU.
> >
> > I assume that different interfaces are not incompatible.
>
> Yes, I also think so because I already use the two interfaces in
> parallel on other computers (x86).
>
> > Can you see anything on /proc/sys/cpu ?
>
> gotan:/proc/sys/cpu# find
> .
> ./0
> ./0/speed
> ./0/speed-min
> ./0/speed-max
> gotan:/proc/sys/cpu# cat 0/*
> 0
> 0
> 0
> gotan:/proc/sys/cpu#
>
> > Are you sure you are using a freq control program and add the
> > corresponding modules.
>
> gotan:/proc/sys/cpu# lsmod | grep freq
> cpufreq_powersave 2016 0
> cpufreq_userspace 10104 0
>
> I don't use any freq control program yet.
>
> > What is the output of your /proc/cpuinfo ?
>
> gotan:/proc/sys/cpu# cat /proc/cpuinfo
> processor : 0
> cpu : 7447A, altivec supported
> clock : 1333MHz
> revision : 1.1 (pvr 8003 0101)
> bogomips : 663.55
> machine : PowerBook6,4
> motherboard : PowerBook6,4 MacRISC3 Power Macintosh
> detected as : 287 (Unknown Intrepid-based)
> pmac flags : 00000008
> L2 cache : 512K unified
> memory : 512MB
> pmac-generation : NewWorld
>
> What is yours?
This is my cpuinfo. Clock is currently at 816MHz:
processor : 0
cpu : 7457, altivec supported
clock : 816MHz
revision : 1.1 (pvr 8002 0101)
bogomips : 813.05
machine : PowerBook5,3
motherboard : PowerBook5,3 MacRISC3 Power Macintosh
detected as : 287 (PowerBook G4 17")
pmac flags : 0000000a
L2 cache : 512K unified
memory : 512MB
pmac-generation : NewWorld
At startup PowerMac CPU freq driver is registered:
[EMAIL PROTECTED]:~$ dmesg | grep -A 1 'frequency driver'
Registering PowerMac CPU frequency driver
Low: 816 Mhz, High: 1333 Mhz, Boot: 816 Mhz, switch method: GPIOs
Can you see anything as that ?
> My understanding is that my CPU ID (PowerBook6,4) is not
> yet supported by the Linux kernel because in
> linux-2.6.7/arch/ppc/platforms/pmac_cpufreq.c I see :
>
> | /* Check for newer machines */
> | if (machine_is_compatible("PowerBook3,4") ||
> | machine_is_compatible("PowerBook3,5") ||
> | machine_is_compatible("MacRISC3")) {
>
> But some people seems to have their Powerbook 12" 867Mhz supported (by
> cpufreq) which have a cpuinfo that give :
>
> cpu : 7455, altivec supported
> clock : 53MHz
> revision : 3.3 (pvr 8001 0303)
> bogomips : 51.90
> machine : PowerBook6,1
> motherboard : PowerBook6,1 MacRISC3 Power Macintosh
> detected as : 271 (Unknown Pangea-based)
> pmac flags : 00000008
> L2 cache : 256K unified
> memory : 384MB
> pmac-generation : NewWorld
>
> So I supposed it's the MacRISC3 compatibilty mode that must be used in
> cpufreq code, but it doesn't seems to work with my CPU...
>
>
Maybe. Can anybody confirm wheather PowerBook6,4 is supported
by cpufreq ?
