Re: Activating L3 cache on a Crescendo G4 400 card (powerMac 7300)

["vinai" <vroopcha@mcw.edu>]

I think you were on the right track. I have a similar setup: a Sonnet
G3/375 in an 8500.  I use Powerlogix's utilities to set the CPU:cache
ratio on boot up.  The Powerlogix extension loads before the BootX
extension, so I do nothing with the G3 settings in BootX. Under Linux,
a check of /proc/cpu/l2cr (or something similar) shows the cache is
activated and running.  Try that and see ...

cheers
vinai

> After a little bit of work it appears that BootX checks for a G3
> processor to enable the cache. Or G3 or G4 cards use the same way to
> enable the cache, so everything can work but is not.
> I did a small change in the GrabCache Settings app given with Bootx,
> and she writes the god informations now in the BootX prefs file. But
> bootx will not enable this checkbox, unless I figure out a way to
> remove the ?if ....¹ somewhere in the sourcecode. the pb is that I
> can¹t compile BootX for the moment (the 68k linker is not installed
> yet on my other box)
>
> The question is : Is there another way than bootx to enable the
> cache ? For example a small piece of code to run as root in linux
> that will do the job, or even a special version of the kernel ?
>
> Thanx for your help!
>>
>> Hi,
>>
>> I would like to use this cache on my box ...
>> I saw some tutorials for PowerLogic cards (with their Cache
>> Utilitie). It seems to work with the card even if it¹s not a power
>> logic, but the fact is bootx does not agree to enable the ?set
>> cache button¹
>>
>> Any tips ?