linux-kernel - Re: [PATCH 1/2] add phys_addr_t for holding physical addresses

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Date:	Mon, 11 Aug 2008 16:02:49 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	benh@...nel.crashing.org
CC:	Andrew Morton <akpm@...ux-foundation.org>, ehabkost@...hat.com,
	x86@...nel.org, linux-kernel@...r.kernel.org,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH 1/2] add phys_addr_t for holding physical addresses

Benjamin Herrenschmidt wrote:
> On Mon, 2008-08-11 at 15:50 -0700, Jeremy Fitzhardinge wrote:
>   
>> Benjamin Herrenschmidt wrote:
>>     
>>> Are we sure resource_size_t is -never- used to represent memory ? I
>>> though it was on some platforms....
>>>       
>> On x86 it's optionally used to put memory in the resource tree, but if 
>> the memory is larger than can be held in resource_size_t it simply skips 
>> it.  Don't know about elsewhere.
>>     
>
> That sounds like a good enough reason to not separate the two concepts..

The resource_size_t situation is obscure.  I'd be happy to just remove 
its config, use my patch and typedef phys_addr_t resource_size_t.

    J

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