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Re: down_trylock() implementation for MIPS 4KEc CPU implies 64bitarithme

To: Emmanuel Michon <em@realmagic.fr>
Subject: Re: down_trylock() implementation for MIPS 4KEc CPU implies 64bitarithmetics?
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Date: Wed, 26 May 2004 19:40:43 +0200 (CEST)
Cc: "Kevin D. Kissell" <kevink@mips.com>, linux-mips@linux-mips.org
In-reply-to: <1085592477.20233.111.camel@avalon.france.sdesigns.com>
Organization: Technical University of Gdansk
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On Wed, 26 May 2004, Emmanuel Michon wrote:

> > > No, because this choice of CPU CONFIG_MIPS32
> > > is exclusive with CONFIG_CPU_R3000 and CONFIG_CPU_R4X00
> > > 
> > > I do use CONFIG_CPU_R4X00 so that appropriate cache routines are used
> > 
> >  Well, the cache routines for both CONFIG_CPU_R4X00 and CONFIG_MIPS32 are 
> > the same.
> > 
> > > I'd prefer to find the appropriate combination of flags to get things
> > > right though...
> > 
> >  The defaults for CONFIG_MIPS32 should be OK.
> 
> What is the difference between CONFIG_CPU_MIPS32 and CONFIG_MIPS32?

 Oops -- I've meant CONFIG_CPU_MIPS32, of course, which selects a MIPS32
ISA compliant CPU.  CONFIG_MIPS32 (together with CONFIG_MIPS64) selects
between a 32-bit and a 64-bit kernel, and for 2.4 it's not directly
settable -- it's implied by the architecture selected with the ARCH
Makefile variable.

 Sorry for the confusion.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +

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