Date: Sat, 10 Jan 2004 23:21:40 -0800 (PST) From: Nate Lawson <nate@root.org> To: Warner Losh <imp@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/pci pci_pci.c pcib_private.h Message-ID: <20040110232115.R49720@root.org> In-Reply-To: <20040111065246.651CF16A4F9@hub.freebsd.org> References: <20040111065246.651CF16A4F9@hub.freebsd.org>
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On Sat, 10 Jan 2004, Warner Losh wrote: > Modified files: > sys/dev/pci pci_pci.c pcib_private.h > Log: > Add support for subtractive decoding bridges. These bridges pass all > signals to addresses to the child busses. Typically, ProgIf of 1 > means a subtractive bridge. However, Intel has a whole lot of ones > with a ProgIf of 80 that are also subtractive. We cope with these > bridges too. This eliminates hw.pci.allow_unsupported_io_range > because that had almost the same effect as these patches (almost means > 'buggy'). Remove the bogus checks for ISA bus locations: these cycles > aren't special and are only passed by transparent bridges. > > We allow any range to succeed. If the range is a superset of the > range that's decoded, trim the resource to that range. Otherwise, > pass the range unchanged. This will change the location that PC Card > and CardBus cards are attached. This might bogusly cause some > overlapping allocation that wasn't present before, but the overlapping > fixes need to be in the pci level. > > There's also a few formatting changes here. > > Revision Changes Path > 1.29 +126 -159 src/sys/dev/pci/pci_pci.c > 1.6 +2 -0 src/sys/dev/pci/pcib_private.h Woo hoo! Scary also. :) -Nate
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