From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1GksaQ-0001Pq-0i for qemu-devel@nongnu.org; Thu, 16 Nov 2006 20:32:10 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1GksaM-0001JA-GR for qemu-devel@nongnu.org; Thu, 16 Nov 2006 20:32:08 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1GksaM-0001Iz-1n for qemu-devel@nongnu.org; Thu, 16 Nov 2006 20:32:06 -0500 Received: from [65.74.133.4] (helo=mail.codesourcery.com) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA:32) (Exim 4.52) id 1GksaM-0001P1-9A for qemu-devel@nongnu.org; Thu, 16 Nov 2006 20:32:06 -0500 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH] Experimental initial patch providing accelerated OpenGL for Linux i386 (2nd attempt to post) Date: Fri, 17 Nov 2006 01:25:18 +0000 References: <200611162134.48783.even.rouault@mines-paris.org> <455CE92F.2000100@bellard.org> In-Reply-To: <455CE92F.2000100@bellard.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200611170125.20350.paul@codesourcery.com> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org > My main remark is that the host/guest communication system must be > changed and I can help you to implement it. I would prefer to use a PCI > device and to avoid any i386 dependent code. For the PCI device, using > the Bochs VGA adapter could be a possible idea. All the parameters and > data should be transmitted as if the PCI device was doing DMA. A single > I/O port could be used to start executing a list of OpenGL commands. I agree, except please make it a memory mapped region rather than an actual IO port. This makes it easier to implement on non-x86 architectures. Most CPUs don't have a native IO port space like x86 does. Paul