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Message-ID: <452BC4A5.3080706@innova-card.com>
Date:	Tue, 10 Oct 2006 18:04:53 +0200
Reply-To: Franck <vagabon.xyz@gmail.com>
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To:	Atsushi Nemoto <anemo@mba.ocn.ne.jp>
CC:	vagabon.xyz@gmail.com, ths@networkno.de, ralf@linux-mips.org,
	linux-mips@linux-mips.org
Subject: Re: [PATCH] setup.c: introduce __pa_symbol() and get ride of CPHYSADDR()
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From:	Franck Bui-Huu <vagabon.xyz@gmail.com>
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Atsushi Nemoto wrote:
> On Tue, 10 Oct 2006 17:01:53 +0200, Franck Bui-Huu <vagabon.xyz@gmail.com> wrote:
>>> I think this peice of code is just broken, as you said.  This is bogus
>>> but harmless since we have not checked these resources are
>>> successfully registered or not.
>> what about all other uses of virt_to_phys(x) ? And what the point to set
>> PAGE_OFFSET to 0xa800000000000000 ? I'm really confused...
> 
> For now I have not seen any problem on other usages.
> 

do you know at which point the kernel starts to use XKPHYS addresses ?

> We can use large flat mapping space in XKPHYS.  No TLB conversion, no
> highmem trick.
> 

ok, and does the trick on KSEG0/XKPHYS really worth ? I mean what is
the size code gain ?

Thanks
		Franck