From owner-freebsd-hackers Tue Oct 9 16:57:38 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from alicia.nttmcl.com (alicia.nttmcl.com [216.69.69.10]) by hub.freebsd.org (Postfix) with ESMTP id 187DE37B403 for ; Tue, 9 Oct 2001 16:57:36 -0700 (PDT) Received: (from gene@localhost) by alicia.nttmcl.com (8.10.1/8.10.1) id f99NvZC23245 for freebsd-hackers@freebsd.org; Tue, 9 Oct 2001 16:57:35 -0700 (PDT) Date: Tue, 9 Oct 2001 16:57:35 -0700 From: "Eugene M. Kim" To: freebsd-hackers@freebsd.org Subject: VM question (I hate Intel 810/815 chipsets...) Message-ID: <20011009165735.A22544@alicia.nttmcl.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG What would be the best way to allocate: 1) a VM page whose physical address falls within a certain boundary, and 2) a VM object whose pages are contiguous in physical address space? Background: The !@*%^*!&#^%*&!#^$!@ Intel 810/815 graphics controller requires its instruction and hardware cursor buffers to reside within first 32MB and 512MB of *physical* memory space respectively. :( :( ;( The XFree86 driver assumes the Linux memory model (virtual addr == physical addr), so it runs on Linux, but not always on FreeBSD. Cheers, Eugene To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message