Re: instruction cache throttling
John Steele Scott <toojays@toojays.net> wrote:
> Joerg Sommer <joerg@alea.gnuu.de> writes:
>> John Steele Scott <toojays@toojays.net> wrote:
>> I found this document:
>> http://www-3.ibm.com/chips/techlib/techlib.nsf/techdocs/2EF555D341769CE787256E470077DD3D/$file/750gx_um_pub.pdf
>
> Ah, I didn't realise that the IBM chips had ICTC as well. My code checks the
> chip type in ict_init. Currently it will only run on the 7450 based CPUs. I
> referenced the Motorola datasheet because I have a G4; I had not looked at the
> IBM one before.
>
> What CPU are you using?
I have a G4 too, but I found the document before with google.
How system clock calibration is done after switching the frequency in
pmac_cpufreq? We need to adjust the clock after changing ICTC too. My
clock drifts away.
Jörg.
--
"...anytime you install something new on the Windows platform, you risk
spending the next five or six hours trying to figure out what happened"
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