linux-kernel - Re: Xilinx: hwicap driver comments

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Message-Id: <1202420016.7079.138.camel@pasglop>
Date:	Fri, 08 Feb 2008 08:33:36 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Stephen Neuendorffer <stephen.neuendorffer@...inx.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Xilinx: hwicap driver comments


On Thu, 2008-02-07 at 22:28 +0100, Jiri Slaby wrote:
> On 02/07/2008 10:17 PM, Benjamin Herrenschmidt wrote:
> > On Thu, 2008-02-07 at 21:08 +0100, Jiri Slaby wrote:
> >> - io resources are at least ulong
> > 
> > They should actually be resource_size_t :-)
> 
> Yup, should... [I don't know how ofter people have 64bit resources on 32 bit 
> this becomes a problem.]

For MMIO it's becoming more and more common actually in the embedded
space. Xilinx uses 405 cores which I think still only have a 32 bits
physical bus though, but if they ever extend it or switch to 440 they'll
have a 36 bits bus.

Ben.

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