Date: Mon, 12 Jul 1999 16:56:24 -0700 From: Mike Smith <mike@smith.net.au> To: Stephen Hocking-Senior Programmer PGS Tensor Perth <shocking@prth.pgs.com> Cc: "Brian F. Feldman" <green@freebsd.org>, current@freebsd.org Subject: Re: MTRR stuff Message-ID: <199907122356.QAA02518@dingo.cdrom.com> In-Reply-To: Your message of "Sat, 10 Jul 1999 13:00:18 %2B0800." <199907100500.NAA05937@ariadne.tensor.pgs.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> > > What exactly are the ranges? You haven't given me enough info yet. I wrote the > > K6-* MTRR driver, so I'd like to help. > > > OK, the Linux 3dfx driver attempts to set up a write combining range starting > at the card's base address and 0x400000 bytes long. After doing this it then > sets up a range marked as uncacheable starting at the card's base address of > length 0x1000. The current i686 MTRR driver doesn't allow overlapping ranges at all; this is a defect in its implementation that will be rectified when I get to work on it next (hopefully in the next week or so). -- \\ The mind's the standard \\ Mike Smith \\ of the man. \\ msmith@freebsd.org \\ -- Joseph Merrick \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199907122356.QAA02518>