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Re: [PATCH v3 1/3] Loongson-2F: Flush the branch target history s

To: Wu Zhangjin <wuzhangjin@gmail.com>, Ralf Baechle <ralf@linux-mips.org>, linux-mips@linux-mips.org
Subject: Re: [PATCH v3 1/3] Loongson-2F: Flush the branch target history such as BTB and RAS
From: Andreas Barth <aba@not.so.argh.org>
Date: Sat, 3 Apr 2010 05:11:26 +0200
In-reply-to: <20100403015352.GA26168@woodpecker.gentoo.org>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <cover.1268453720.git.wuzhangjin@gmail.com> <05e2ba2596f23fa4dda64d63ce2480504b1be4ac.1268453720.git.wuzhangjin@gmail.com> <20100402145401.GS27216@mails.so.argh.org> <20100403015352.GA26168@woodpecker.gentoo.org>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.5.18 (2008-05-17)
* Zhang Le (r0bertz@gentoo.org) [100403 04:20]:
> On 16:54 Fri 02 Apr     , Andreas Barth wrote:
> > * Wu Zhangjin (wuzhangjin@gmail.com) [100313 05:45]:
> > > This patch did clear BTB(branch target buffer), forbid RAS(return
> > > address stack) via Loongson-2F's 64bit diagnostic register.
> > 
> > Unfortunatly the Loongson 2F here still fails with this patch,
> > compiled with the new binutils and both options enabled.
> 
> Which version of binutils exactly?
> The patch is in cvs, but latest binutils-2.20.1 still didn't include it.
> You need to patch it.

Yes, binutils are patched with
http://sourceware.org/ml/binutils/2009-11/msg00387.html


Andi

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