From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 29 May 2001 17:05:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 29 May 2001 17:05:06 -0400 Received: from wb3-a.mail.utexas.edu ([128.83.126.138]:50948 "HELO mail.utexas.edu") by vger.kernel.org with SMTP id ; Tue, 29 May 2001 17:04:53 -0400 Message-ID: <3B136639.D883F0C8@mail.utexas.edu> Date: Tue, 29 May 2001 15:04:57 +0600 From: "Bobby D. Bryant" Organization: (I do not speak for) The University of Texas at Austin (nor they for me). X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.4-athlon i686) X-Accept-Language: en,fr,de MIME-Version: 1.0 To: "linux-kernel@vger.kernel.org" Subject: Re: Status of ALi MAGiK 1 support in 2.4.? In-Reply-To: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Alan Cox wrote: > > May 22 21:45:07 pollux kernel: ALI15X3: simplex device: DMA disabled > > May 22 21:45:07 pollux kernel: ide0: ALI15X3 Bus-Master DMA disabled > > (BIOS) > > May 22 21:45:07 pollux kernel: ALI15X3: simplex device: DMA disabled > > May 22 21:45:07 pollux kernel: ide1: ALI15X3 Bus-Master DMA disabled > > The DMA was off because the BIOS left it off. I just checked, and the BIOS auto-detect page for that drive shows PIO Mode 4 and Ultra DMA Mode 5. The BIOS also shows a summary chart during boot, just before the LILO prompt, and that summary also reports UDMA 5 for that drive. It really looks like the kernel is not getting the correct device info from the BIOS. As I mentioned earlier, the A7A266 supposedly has an ALi M1535D+ southbridge "with PCI Super-I/O Integrated Peripheral Controller (PSIPC)", rather than the ALI15X3 reported by the kernel. Thanks, Bobby Bryant Austin, Texas