From: jgunthorpe@obsidianresearch.com (Jason Gunthorpe)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] [ARM] Feroceon: fix kexec by setting outer_cache.inv_all
Date: Mon, 25 Mar 2013 11:21:13 -0600 [thread overview]
Message-ID: <20130325172113.GC16690@obsidianresearch.com> (raw)
In-Reply-To: <514E0D70.3060202@grapecom.com>
On Sat, Mar 23, 2013 at 10:15:44PM +0200, Elijah Ragozin wrote:
> Hello,
>
> I have a simple fix for kexec on Marvell Feroceon SoC.
> Originally created and tested on kernel version 2.6.39.2,
> but appliable for the 3.9 kernel as well.
> Could you pls review. The patch is below.
Hmm, I am using kexec on Kirkwood (a Feroceon SOC) and haven't had any
problems with L2 coherency.. What exactly goes wrong here?
The only reason I could think of that this would make a difference is
if something along the boot path was turning on/off the L2? However if
you turn off the L2 then it needs to be invalidated before it is
turned on again. enable_l2 already does this properly..
Is the decompressor fiddling with the L2?
Jason
next prev parent reply other threads:[~2013-03-25 17:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-23 20:15 [PATCH] [ARM] Feroceon: fix kexec by setting outer_cache.inv_all Elijah Ragozin
2013-03-25 17:21 ` Jason Gunthorpe [this message]
2013-03-25 17:49 ` Elijah Ragozin
2013-03-25 18:13 ` Jason Gunthorpe
2013-03-25 18:43 ` Elijah Ragozin
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