Powerlogix upgraded Pismo and Linux...

[Greg Hamilton]

I wonder how complicated enabling the cache is. It may be as simple as=20=

writing a few magic numbers to the right registers or it may be=20
devilishly complicated and completely beyond my powers of comprehension.

I wonder also if the cache can be enabled/ disabled once Linux is=20
running or if it would have to happen early in the boot process. I=20
don't know enough about that sort of hardware to be sure.

If the cache can be enabled once Linux has booted and if enabling the=20
cache is as simple as I suspect then writing a kernel module to enable/=20=

disable the cache would an option.

Ask the manufacturer if they are willing to give you some more=20
technical details.

Greg Hamilton

On Saturday, August 30, 2003, at 06:32  AM, Etienne Beaule wrote:

> Hello all...
>
> I upgraded my Pismo with the PowerLogix BlueChip G3 900=20
> (http://www.powerlogix.com/products2/bcg3pismo/index.html). While it=20=

> works great under Mac OS X, I failed to see any improvements under=20
> Linux. I just contacted the company and they told me and here is what=20=

> I got:
>
>>> Are the startup files (and kext) absolutely required to benefit from=20=

>>> your upgrade? If so, do you plan to release something for linux?
>> Yes, they turn on the cache.
>> Sorry, we don't make any software for Linux and there are no plans=20
>> for that as you are only the second person to ask : )
>
> So it seems that I will have to run linux without a processor cache=20
> for the time being...
>
> Does anybody know if there is a way to activate that cache under =
linux?
>
> Thanks,
>
> =C9tienne
>
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