Re: MTRR initialization

[Howard Chu <hyc@symas.com>]

Siddha, Suresh B wrote:
> On Fri, Sep 14, 2007 at 09:33:30AM -0700, Howard Chu wrote:
> > So now I have this, which is pretty much
> > what
> > I wanted:
> >
> > reg00: base=0x00000000 (   0MB), size=2048MB: write-back, count=1
> > reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1
> > reg02: base=0x100000000 (4096MB), size=1024MB: write-back, count=1
> > reg03: base=0xc0000000 (3072MB), size=1024MB: uncachable, count=1
> > reg04: base=0xc0000000 (3072MB), size= 256MB: write-combining, count=1
> > reg05: base=0xd0000000 (3328MB), size= 256MB: write-combining, count=1
>
> BTW, having overlapping WC, UC regions make the end result UC. So in this
> case, you may not be getting the desired performance.

Thanks, I noticed that later. I simply deleted the UC mapping since it was no 
longer needed.
--
  -- Howard Chu
  Chief Architect, Symas Corp.  http://www.symas.com
  Director, Highland Sun        http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP     http://www.openldap.org/project/
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