linux-kernel - Re: [PATCH 1/3] Loongson-2F: Flush the branch target history such as BTB and RAS

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Message-ID: <1268234645.19976.1.camel@falcon>
Date:	Wed, 10 Mar 2010 23:24:04 +0800
From:	Wu Zhangjin <wuzhangjin@...il.com>
To:	Sergei Shtylyov <sshtylyov@...sta.com>
Cc:	Ralf Baechle <ralf@...ux-mips.org>, Greg KH <gregkh@...e.de>,
	linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] Loongson-2F: Flush the branch target history such
 as BTB and RAS

Hi,

Thanks very much for your careful review, will resend a new one later.

Regards,
	Wu Zhangjin

On Wed, 2010-03-10 at 13:44 +0300, Sergei Shtylyov wrote:
[...]
> > diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h
> > index 3b6da33..b84cfda 100644
> > --- a/arch/mips/include/asm/stackframe.h
> > +++ b/arch/mips/include/asm/stackframe.h
> > @@ -121,6 +121,25 @@
> >  		.endm
> >  #else
> >  		.macro	get_saved_sp	/* Uniprocessor variation */
> > +#ifdef CONFIG_CPU_LOONGSON2F
> > +		/*
> > +		 * Clear BTB(branch target buffer), forbid RAS(row address
> > +		 * strobe)
> 
>    No spaces before the left paren...
> 
> >  to workaround the Out-of-oder Issue in Loongson2F
> > +		 * via it's diagnostic register.
> >   
> 
>    Only "its".
> 
> > +		 */
> > +		move k0, ra
> >   
> 
>    Operands misalined...
> 
> WBR, Sergei
> 
> 


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