Date: Tue, 25 Jan 2000 18:01:28 -0800 From: Mike Smith <msmith@freebsd.org> To: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/i386 nexus.c Message-ID: <200001260201.SAA04206@mass.cdrom.com> In-Reply-To: Your message of "Tue, 25 Jan 2000 20:39:37 EST." <200001260139.UAA08386@khavrinen.lcs.mit.edu>
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> <<On Tue, 25 Jan 2000 17:32:52 -0800 (PST), Mike Smith <msmith@FreeBSD.org> said: > > > Correctly initialise the available IRQ numbers in the APIC_IO case. > > IRQ 2 was being unilaterally disallowed, which is only appropriate if > > the interrupt hardware is the traditional chained PIC arrangement. > > It shouldn't be disallowed in the PNPBIOS case, either. Peter, Doug, > and I have discussed how to do this right, but we did not come to a > final conclusion. In my "ideal world": - IRQ 2 would be explicitly consumed by the driver for the chained PIC. - PNPBIOS would not be optional (I don't know of any systems it doesn't work on, and I've considered making it the default for 4.0) - If we don't find a PnP BIOS, we should insert a minimal set of 'standard' motherboard resources to match what we expect the system to have. Regardless, I have a system here that assigns the low-level handler #2 to a device, and I needed it to work Right Now, so this is the result. It's not pretty, but it's enough for now. -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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