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Date: Mon, 10 Jan 2011 05:27:09 -0700
From: Warner Losh <imp@bsdimp.com>
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Subject: Re: [PATCH] Support for 64-bit PTEs on n64
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On 01/09/2011 22:03, Juli Mallett wrote:
> On Sun, Jan 9, 2011 at 20:51, Jayachandran C.<c.jayachandran@gmail.com>  wrote:
>> Here's my initial code to support>4GB physical memory on MIPS.  This
>> patch adds 64 bit page table entries in n64 compilation.
>>
>> I would like to add this as an optional feature for n32/o32
>> compilation with 'option PHYSADDR_64_BIT' later.
> This is great!  Can you put the PTE-related assembly macros into an
> existing header file instead of in the sources?  That's the only thing
> that really stands out to me.
>

Agreed.  Too many magic constants in magic places.

On question, however.  The 64-bit PTEs won't get in the way when we're 
running 32-bit binaries on a 64-bit kernel, will they?

Warner