Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268566AbTGIWL2 (ORCPT ); Wed, 9 Jul 2003 18:11:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268568AbTGIWL2 (ORCPT ); Wed, 9 Jul 2003 18:11:28 -0400 Received: from air-2.osdl.org ([65.172.181.6]:25283 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S268566AbTGIWL1 (ORCPT ); Wed, 9 Jul 2003 18:11:27 -0400 Date: Wed, 9 Jul 2003 15:25:59 -0700 (PDT) From: Linus Torvalds To: Jeff Garzik cc: Linux Kernel Mailing List , Alan Cox , Bartlomiej Zolnierkiewicz Subject: Re: Fix IDE initialization when we don't probe for interrupts. In-Reply-To: <3F0C9251.2010107@pobox.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1029 Lines: 29 On Wed, 9 Jul 2003, Jeff Garzik wrote: > > I'm curious where interrupts are re-enabled, though? The low-level drivers seem to do it at every IO. Don't ask me why. But it gets done automatically by any code that does hwif->OUTB(drive->ctl, IDE_CONTROL_REG); which is pretty common (just grep for "IDE_CONTROL_REG" and you'll see what I mean). I note that I should have made this "disable irq" be dependent on IDE_CONTROL_REG being non-zero. Although I don't see when that register _can_ be zero, it would be a major bummer not to have access to the control register. (Obviously it must be zero for some architecture, though, or those conditionals woulnd't make sense. Alan? Bartlomiej? What kind of sick pseudo-IDE controller doesn't have a control register?). Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/