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From: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [PATCH 6/7] MPIC MSI allocator
Date: Tue, 24 Apr 2007 11:44:37 +0200
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Olof Johansson <olof@lixom.net>, linuxppc-dev@ozlabs.org,
	linux-pci@atrey.karlin.mff.cuni.cz
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>> First-gen G5's need that just as well, they just don't
>> have such interrupts on the default system configuration,
>> as far as I remember.
>
> They didn't have an HT APIC or if they had one, they didn't enable it
> (they probably did in the tunnel).

Yes, the two HT APICs on the tunnel were enabled.

> They didn't use the U3 MPIC as an HT
> IRQ master, thus it's irrelevant.

They did for the plugin PCI-X slots (well, it's chained
to another MPIC, but you still need the workaround).

> Anyway, there is no point in this
> discussion :-)

Yeah, the new name for CONFIG_BROKEN_U3 is fine
no matter what :-)


Segher