Date: Sun, 20 Sep 2009 18:59:30 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/dev/pci pci.c src/sys/sparc64/include param.h Message-ID: <200909201900.n8KJ07to004799@repoman.freebsd.org>
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marius 2009-09-20 18:59:30 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/dev/pci pci.c
sys/sparc64/include param.h
Log:
SVN rev 197367 on 2009-09-20 18:59:30Z by marius
MFC: r195808
Add a MD __PCI_BAR_ZERO_VALID which denotes that BARs containing 0
actually specify valid bases that should be treated just as normal.
The PCI specifications have no indication that 0 would be a magic value
indicating a disabled BAR as commonly used on at least amd64 and i386
but not sparc64. It's unclear what to do in pci_delete_resource()
instead of writing 0 to a BAR though as there's no (other) way do
disable individual BARs so its decoding is left enabled in case of
__PCI_BAR_ZERO_VALID for now.
Approved by: jhb
Revision Changes Path
1.355.2.12 +15 -8 src/sys/dev/pci/pci.c
1.22.2.2 +2 -0 src/sys/sparc64/include/param.h
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