Date: Tue, 24 Sep 2002 11:39:17 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: jhb@FreeBSD.org, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/conf files.i386 src/sys/i386/i386 legacy.c src/sys/i386/include legacyvar.h Message-ID: <20020924020917.GC76938@wantadilla.lemis.com> In-Reply-To: <20020923.200706.128047002.imp@bsdimp.com> References: <200209231550.g8NFo6tV086431@freefall.freebsd.org> <20020924014944.GC14284@wantadilla.lemis.com> <20020923.200706.128047002.imp@bsdimp.com>
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On Monday, 23 September 2002 at 20:07:06 -0600, M. Warner Losh wrote: > In message: <20020924014944.GC14284@wantadilla.lemis.com> > "Greg 'groggy' Lehey" <grog@FreeBSD.org> writes: >> On Monday, 23 September 2002 at 8:50:06 -0700, John Baldwin wrote: >>> jhb 2002/09/23 08:50:06 PDT >>> >>> Modified files: >>> sys/conf files.i386 >>> sys/i386/i386 legacy.c >>> sys/i386/include legacyvar.h >>> Log: >>> Add a new legacy(4) device driver for use on machines that do not have >>> ACPI or for when ACPI support is disabled or not present in the kernel. >>> Basically, the nexus device is now split into two with some parts >>> (such as adding default ISA, MCA, and EISA busses if they aren't found >>> as well as support for PCI bus device ivars) being moved to the legacy >>> driver. >> >> What's the rationale for this? > > Cleanliness of implementation. The ia32 architecture has basically > gone to requiring ACPI. Hmm, you mean the PC architecture, right? Does this affect PC98 as well? > Using ACPI means we do a whole lot of things differently. So if we > are using ACPI we attach ACPI drivers that do ACPI specific things. > When we don't we attach the non-ACPI specific ones. This has been > discussed rather heavily over the last several weeks. I've reviewed > this as well, and it seems like a very sane thing to do. So we > really have gotten to the point where we have the 'legacy' way of > doing and the 'acpi' way. This makes good sense. Thanks. > Do you have a specific problem with it, or does it just smell a > little weird at first? Neither. I was just wondering. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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