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Re: [PATCH -queue v0 1/6] [loongson] add basic loongson-2f support

To: Wu Zhangjin <wuzhangjin@gmail.com>
Subject: Re: [PATCH -queue v0 1/6] [loongson] add basic loongson-2f support
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 5 Nov 2009 11:28:38 +0100
Cc: linux-mips@linux-mips.org, LKML <linux-kernel@vger.kernel.org>, huhb@lemote.com, yanh@lemote.com, Zhang Le <r0bertz@gentoo.org>, Thomas Gleixner <tglx@linutronix.de>, Nicholas Mc Guire <der.herr@hofr.at>, zhangfx@lemote.com, liujl@lemote.com
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On Thu, Nov 05, 2009 at 05:48:43PM +0800, Wu Zhangjin wrote:

> > I thought the Loongson 2E/2F were MIPS64 Release 1 compatible?
> > 
> 
> They told me MIPS III, but added MMX instruction set ;)

Just when I thought MIPS III was on the way out ;-)

> > You're ifdefing on Loongson 2F - doesn't that mean that you can't have a
> > kernel that supports both Loongson 2E and 2F?
> > 
> 
> Currently, not consider it yet;) It's a little hard to cope with, should
> we consider it at this moment? if yes, I will try it with the help of
> exisiting machtype asap. but I think it's better to let it be the future
> job ;)

Fair enough - though I'm sure Linux distributions would be happy to have
one kernel variant less to ship.

> > static struct irqaction __maybe_unused dma_timeout_irqaction = {
> > [...]
> > };
> > 
> 
> okay, will apply it later.

Thanks.

  Ralf

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