From owner-freebsd-current Thu Jul 8 19:32:55 1999 Delivered-To: freebsd-current@freebsd.org Received: from bilby.prth.tensor.pgs.com (bilby.prth.tensor.pgs.com [157.147.232.237]) by hub.freebsd.org (Postfix) with ESMTP id 8F71914D0C for ; Thu, 8 Jul 1999 19:32:43 -0700 (PDT) (envelope-from shocking@ariadne.prth.tensor.pgs.com) Received: from bandicoot.prth.tensor.pgs.com (bandicoot.prth.tensor.pgs.com [157.147.224.1]) by bilby.prth.tensor.pgs.com (8.9.3/8.8.8) with ESMTP id KAA15204 for ; Fri, 9 Jul 1999 10:31:28 +0800 (WST) Received: from ariadne.tensor.pgs.com (ariadne [157.147.227.36]) by bandicoot.prth.tensor.pgs.com (8.9.3/8.8.8) with SMTP id KAA28880 for ; Fri, 9 Jul 1999 10:32:38 +0800 (WST) Received: from ariadne by ariadne.tensor.pgs.com (SMI-8.6/SMI-SVR4) id KAA04002; Fri, 9 Jul 1999 10:32:37 +0800 Message-Id: <199907090232.KAA04002@ariadne.tensor.pgs.com> X-Mailer: exmh version 2.0.2 2/24/98 To: current@freebsd.org Subject: MTRR stuff Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 09 Jul 1999 10:32:37 +0800 From: Stephen Hocking-Senior Programmer PGS Tensor Perth Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG For some video cards (to wit, the voodoo stuff), the MTRRs should be set up as follows write-combining +----------------------------------------------------------+ +-------+ uncacheable i.e. the two regions have the same starting area, but the small chunk for the registers should be uncacheable. When I try to do this using memconf on my K6-2, it spits the dummy. Is there a work around for this? Stephen -- The views expressed above are not those of PGS Tensor. "We've heard that a million monkeys at a million keyboards could produce the Complete Works of Shakespeare; now, thanks to the Internet, we know this is not true." Robert Wilensky, University of California To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message