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Subject: Re: [PATCH v3 3/5] PCI: Skip IORESOURCE_MMIO allocation for root
 bus without MMIO range
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
        Gavin Shan <shangw@linux.vnet.ibm.com>,
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Date: Wed, 08 May 2013 11:16:18 +1000
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On Tue, 2013-05-07 at 15:44 -0700, Yinghai Lu wrote:
> x86 32 socket system, we may need to leave more mmiol for only several
> sockets to make them work with cards that does not support mmio 64 bit
> pref.

Ok, while on POWER each root bridge has its own distinct 32-bit space
(mapped elsewhere in CPU space). So at least we don't have *that*
specific problem :-)

Cheers,
Ben.