linux-kernel - Re: [PATCH v7 1/6] pci: Introduce pci_register_io

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Message-ID: <1396862008.3671.39.camel@pasglop>
Date:	Mon, 07 Apr 2014 19:13:28 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Liviu Dudau <Liviu.Dudau@....com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	linux-pci <linux-pci@...r.kernel.org>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Will Deacon <Will.Deacon@....com>,
	linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Arnd Bergmann <arnd@...db.de>,
	LKML <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	LAKML <linux-arm-kernel@...ts.infradead.org>,
	Tanmay Inamdar <tinamdar@....com>,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH v7 1/6] pci: Introduce pci_register_io_range() helper
 function.

On Mon, 2014-04-07 at 09:35 +0100, Liviu Dudau wrote:
> Thanks for the summary, is really useful as I was recently looking
> into code in that
> area. One thing I was trying to understand is why ppc needs _IO_BASE
> at all rather
> than using the generic PCI_IOBASE? 

Perhaps because our code predates it ? :-) I haven't looked much into
the semantics of PCI_IOBASE yet...

Cheers,
Ben.


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