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From: Marcelo Tosatti <marcelo@kvack.org>
To: Jochen Friedrich <jochen@scram.de>, Paul Mackerras <paulus@samba.org>
Cc: linux-kernel@vger.kernel.org, linuxppc-embedded@ozlabs.org
Subject: Re: [PATCH] ppc32/8xx: Fix r3 trashing due to 8MB TLB page instantiation
Date: Wed, 29 Aug 2007 08:22:43 -0400	[thread overview]
Message-ID: <20070829122243.GA21150@dmt> (raw)
In-Reply-To: <46D40510.3060805@scram.de>


Please apply. 

On Tue, Aug 28, 2007 at 01:20:48PM +0200, Jochen Friedrich wrote:
> Instantiation of 8MB pages on the TLB cache for the kernel static
> mapping trashes r3 register on !CONFIG_8xx_CPU6 configurations.
> This ensures r3 gets saved and restored.
> 
> This has been posted to linuxppc-embedded by Marcelo Tosatti
> <marcelo@kvack.org>, but only an incomplete version of the patch
> has been applied in c51e078f82096a7d35ac8ec2416272e843a0e1c4.
> This patch adds the rest of the fix.
> 
> Signed-off-by: Jochen Friedrich <jochen@scram.de>
> ---
>  arch/ppc/kernel/head_8xx.S |    2 --
>  1 files changed, 0 insertions(+), 2 deletions(-)
> 
> This can be pulled from git://git.bocc.de/dbox2.git ppc-fixes

WARNING: multiple messages have this Message-ID (diff)
From: Marcelo Tosatti <marcelo@kvack.org>
To: Jochen Friedrich <jochen@scram.de>, Paul Mackerras <paulus@samba.org>
Cc: linuxppc-embedded@ozlabs.org, linux-kernel@vger.kernel.org,
	Marcelo Tosatti <marcelo@kvack.org>
Subject: Re: [PATCH] ppc32/8xx: Fix r3 trashing due to 8MB TLB page instantiation
Date: Wed, 29 Aug 2007 08:22:43 -0400	[thread overview]
Message-ID: <20070829122243.GA21150@dmt> (raw)
In-Reply-To: <46D40510.3060805@scram.de>


Please apply. 

On Tue, Aug 28, 2007 at 01:20:48PM +0200, Jochen Friedrich wrote:
> Instantiation of 8MB pages on the TLB cache for the kernel static
> mapping trashes r3 register on !CONFIG_8xx_CPU6 configurations.
> This ensures r3 gets saved and restored.
> 
> This has been posted to linuxppc-embedded by Marcelo Tosatti
> <marcelo@kvack.org>, but only an incomplete version of the patch
> has been applied in c51e078f82096a7d35ac8ec2416272e843a0e1c4.
> This patch adds the rest of the fix.
> 
> Signed-off-by: Jochen Friedrich <jochen@scram.de>
> ---
>  arch/ppc/kernel/head_8xx.S |    2 --
>  1 files changed, 0 insertions(+), 2 deletions(-)
> 
> This can be pulled from git://git.bocc.de/dbox2.git ppc-fixes



  reply	other threads:[~2007-08-29 13:18 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-28 11:20 [PATCH] ppc32/8xx: Fix r3 trashing due to 8MB TLB page instantiation Jochen Friedrich
2007-08-28 11:20 ` Jochen Friedrich
2007-08-29 12:22 ` Marcelo Tosatti [this message]
2007-08-29 12:22   ` Marcelo Tosatti
2007-08-29 23:08 ` Kumar Gala
2007-08-29 23:08   ` Kumar Gala
2007-08-30  8:48   ` Jochen Friedrich
2007-08-30  8:48     ` Jochen Friedrich

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