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Date: Sat, 30 Jul 2011 09:49:52 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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To: John Baldwin <jhb@FreeBSD.org>
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Cc: freebsd-current@FreeBSD.org
Subject: Re: ichwd0: unable to reserve GCS registers
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on 19/07/2011 18:16 John Baldwin said the following:
> Hmm, can you get devinfo -r output from a working kernel with ichwd loaded?  
> You might be able to just build the kernel with 'nooptions NEW_PCIB'.

I believe that I've got a similar problem with amdsbwd(4).
It needs some resources (I/O ports) that belong to ACPI.
The problem is that the driver attaches to isa bus which is under
isab->pci->pcib and those particular resources are not assigned to the Host-PCI
bridge.

I think that you already made a suggestion that perhaps isa bus should  directly
attach to acpi bus when acpi is available.  Not sure if there are any
alternative approaches.

-- 
Andriy Gapon