linux-kernel - Re: [PATCH v3 3/5] PCI: Skip IORESOURCE_MMIO allocation for root bus without MMIO range

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Date:	Wed, 08 May 2013 11:16:18 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Gavin Shan <shangw@...ux.vnet.ibm.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 3/5] PCI: Skip IORESOURCE_MMIO allocation for root
 bus without MMIO range

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.


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