segher at kernel.crashing.org
Wed Jan 21 05:01:15 EST 2004
On 19-jan-04, at 23:05, Benjamin Herrenschmidt wrote:
>> The BAT thing at least is documented (and has been documented
>> _for ever_ -- see the PEM, the 970 is a 64-bit chip. Get the
>> rev 2.0 PEM from the 970 doc page).
>> The large page thing is cpu specific afaik (from memory).
> POWER3 had BATs
Sure, but BATs are not *required* by the 64-bit architecture.
p.s. Well actually, I went to check -- and the PEM 2.0 _does_
define BATs for 64-bit. Let's put this under "POWER4 and
derivatives specific" as well then, until the docs get fixed :-)
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