Date: Sun, 11 Jan 2004 00:28:38 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: nate@root.org Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/pci pci_pci.c pcib_private.h Message-ID: <20040111.002838.75200166.imp@bsdimp.com> In-Reply-To: <20040110232115.R49720@root.org> References: <20040111065246.651CF16A4F9@hub.freebsd.org> <20040110232115.R49720@root.org>
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In message: <20040110232115.R49720@root.org>
Nate Lawson <nate@root.org> writes:
: 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. :)
Tell me about it :-)
I'll likely tease out the resource allocation stuff from the power
stuff once I get it fixed to try to do allocations that are properly
aligned.
Warner
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