linux-kernel - [PATCH] ppc32/8xx: Fix r3 trashing due to 8MB TLB page instantiation

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Message-ID: <46D40510.3060805@scram.de>
Date:	Tue, 28 Aug 2007 13:20:48 +0200
From:	Jochen Friedrich <jochen@...am.de>
To:	linuxppc-embedded@...abs.org
CC:	linux-kernel@...r.kernel.org, Marcelo Tosatti <marcelo@...ck.org>
Subject: [PATCH] ppc32/8xx: Fix r3 trashing due to 8MB TLB page instantiation

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@...ck.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@...am.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

View attachment "d14ebb1e9d133983252a14f2ef037f76969ab3c6.diff" of type "text/x-patch" (363 bytes)