Date: Tue, 16 Nov 2004 13:39:13 -0500 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-acpi@FreeBSD.org Cc: scottl@FreeBSD.org Subject: Re: New ACPI PCI Link Routing code Message-ID: <200411161339.13818.jhb@FreeBSD.org> In-Reply-To: <200411111737.00537.jhb@FreeBSD.org> References: <200411111737.00537.jhb@FreeBSD.org>
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On Thursday 11 November 2004 05:37 pm, John Baldwin wrote: > I've done some work on the ACPI PCI link code to make it a bit more like > $PIR in that it is link centric and uses actual new-bus devices for each > device link. One benefit of this is that unused links will be disabled now > which might help with interrupt aliasing problems on machines using APICs. > Also, instead of routing IRQs for links via PCI device numbers using > tunables, they are now routed via the link name ala $PIR. Thus, one uses > 'hw.pci.link.LNKA.irq=X' to route LNKA to IRQ X. Also, when choosing a > virgin interrupt, we no longer try to guess at which IRQs might be used by > ISA devices. Instead, we only use known-good IRQs including IRQs that the > BIOS has already used and the SCI if the link is being routed via ISA IRQs. > The patch is at http://www.FreeBSD.org/~jhb/patches/acpi_pci_link.patch > Please test and let me know if there are any problems, thanks. I've updated this to the latest current and verified that it compiles ok (since I had at least one report that it didn't patch cleanly and/or compile). I plan to commit this in a couple of days unless I hear some sort of negative feedback. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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