Re: MTRR patch v1.5

Chris Evans (
Thu, 22 Jan 1998 16:08:36 +0000 (GMT)

On Mon, 19 Jan 1998, Richard Gooch wrote:

> Hi, Linus. Below is v1.5 of my MTRR patch (set Memory Type Range
> Registers to speed frame-buffer access by 2.5x). It includes a patch
> by David Wragg <> to properly set the passive-release
> enable bit (some BIOSes don't do this).

Does this help at all for normal Pentiums? Isn't there some trick Windows
pulls off to speed up access to PCI cards with mapped memory on normal
Pentiums? etc.?