From owner-freebsd-hackers Sun Sep 8 13:20:57 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8F35E37B400 for ; Sun, 8 Sep 2002 13:20:55 -0700 (PDT) Received: from harmony.village.org (rover.bsdimp.com [204.144.255.66]) by mx1.FreeBSD.org (Postfix) with ESMTP id BBCCA43E3B for ; Sun, 8 Sep 2002 13:20:54 -0700 (PDT) (envelope-from imp@bsdimp.com) Received: from localhost (warner@rover2.village.org [10.0.0.1]) by harmony.village.org (8.12.3/8.12.3) with ESMTP id g88KKrGq027900; Sun, 8 Sep 2002 14:20:53 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Sun, 08 Sep 2002 14:20:46 -0600 (MDT) Message-Id: <20020908.142046.92054545.imp@bsdimp.com> To: bms@spc.org Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: PCMCIA questions: mapping attribute and common memory? From: "M. Warner Losh" In-Reply-To: <20020908193956.GF3235@spc.org> References: <20020908190057.GE3235@spc.org> <20020908.131633.124488233.imp@bsdimp.com> <20020908193956.GF3235@spc.org> X-Mailer: Mew version 2.1 on Emacs 21.2 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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 In message: <20020908193956.GF3235@spc.org> Bruce M Simpson writes: : On Sun, Sep 08, 2002 at 01:16:33PM -0600, M. Warner Losh wrote: : > I still don't understand why you need ISA routed interrupts. What was : > wrong with sharing a PCI one? I had nothing but grief trying to make : : The Vaio Z600 muxes everything on IRQ 9. The PCMCIA device did not support : IRQ 9. Windows 2000 was able to route IRQ 7 as an ISA function interrupt : which allows it to support the device. FreeBSD did not; and I was in a : hurry to get my code written. What do you mean 'The PCMCIA device did not support IRQ 9'? All PCMCIA devices have only one interrupt line, so it has no way of knowing if that interrupt is routed to IRQ 9 or 7 or anything else. Sure, it might not be listed in the preferred IRQ list in the CIS, but that's just a hint to configruation software, not what the hardware can do. I've not yet encountered a device that cared one whit about ISA vs PCI interrupts... This would be a first if it really is the case. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message