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From: Kumar Gala <galak@kernel.crashing.org>
To: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: linuxppc-dev@ozlabs.org,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: Re: [PATCH 1/3] powerpc/head fsl: fix the case where we are not in the first page
Date: Mon, 24 May 2010 14:01:39 -0500	[thread overview]
Message-ID: <1B420EEE-E06B-4AA2-977E-D3B1B0166679@kernel.crashing.org> (raw)
In-Reply-To: <1270412343-19334-2-git-send-email-sebastian@breakpoint.cc>


On Apr 4, 2010, at 3:19 PM, Sebastian Andrzej Siewior wrote:

> From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> 
> During boot we change the mapping a few times until we have a "defined"
> mapping. During this procedure a small 4KiB mapping is created and after
> that one a 64MiB. Currently the offset of the 4KiB page in that we run
> is zero because the complete startup up code is in first page which
> starts at RPN zero.
> If the code is recycled and moved to another location then its execution
> will fail because the start address in 64 MiB mapping is computed
> wrongly. It does not consider the offset to the page from the begin of
> the memory.
> This patch fixes this. Usually (system boot) r25 is zero so this does
> not change anything unless the code is recycled.
> 
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> ---
> arch/powerpc/kernel/head_fsl_booke.S |    1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)

applied to next

- k

  reply	other threads:[~2010-05-24 19:02 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-04 20:19 Kexec on FSL-Book-E, v4 Sebastian Andrzej Siewior
2010-04-04 20:19 ` [PATCH 1/3] powerpc/head fsl: fix the case where we are not in the first page Sebastian Andrzej Siewior
2010-05-24 19:01   ` Kumar Gala [this message]
2010-04-04 20:19 ` [PATCH 2/3] powerpc/fsl head: move the entry setup code into a seperate file Sebastian Andrzej Siewior
2010-05-24 19:01   ` Kumar Gala
2010-04-04 20:19 ` [PATCH 3/3] powerpc/kexec: Add support for FSL-BookE Sebastian Andrzej Siewior
2010-05-07  6:50   ` Kumar Gala
2010-05-07  7:24     ` Sebastian Andrzej Siewior
2010-05-07 11:35       ` wilbur.chan
2010-05-07 12:16         ` Josh Boyer
2010-05-07 12:50           ` Kumar Gala
2010-05-24 19:01   ` Kumar Gala

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