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Re: MIPS64 status?

To: "Kevin D. Kissell" <kevink@mips.com>
Subject: Re: MIPS64 status?
From: Ralf Baechle <ralf@oss.sgi.com>
Date: Mon, 14 Jan 2002 15:23:55 -0800
Cc: Dominic Sweetman <dom@algor.co.uk>, Matthew Dharm <mdharm@momenco.com>, linux-mips@oss.sgi.com
In-reply-to: <00ee01c19cfa$ab8d3640$0deca8c0@Ulysses>; from kevink@mips.com on Mon, Jan 14, 2002 at 01:54:42PM +0100
References: <20020113211323.A7115@momenco.com> <15426.48692.795968.819750@gladsmuir.algor.co.uk> <00ee01c19cfa$ab8d3640$0deca8c0@Ulysses>
Sender: owner-linux-mips@oss.sgi.com
User-agent: Mutt/1.2.5i
On Mon, Jan 14, 2002 at 01:54:42PM +0100, Kevin D. Kissell wrote:

> The official MIPS64[tm] architecture spec from MIPS 
> Technologies also provides a bit (Status.PX) which enables
> the 64-bit data path without affecting address generation
> and translation, which removes this quirk.  Only the very
> most recent 64-bit cores and CPUs implement it, however.

And Linux doesn't use PX at all.

  Ralf

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