Re: pgprot_writecombine & shub 1.x

David Mosberger
2005-01-20T17:17:43Z

>>>>> On 20 Jan 2005 04:03:19 -0500, Jes Sorensen <jes@wildopensource.com> said:

Jes> What about real memory and mapping it uncached? Do we need to
Jes> play the same trick before allowing it to be mapped uncached?

It needs to be done on a granule-boundary, too, yes.

Jes> Trying to map real memory uncached was what made me stumble
Jes> upon the PREFETCH_VISIBILITY limitation in the PAL code.

I assume you're using this as part of the procedure outlined in
Section 4.4.11.2 of IASD v2 "Physical Addressing Attribute
Transition", right?

--david