From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Implement cpu_v7_reset.
Date: Thu, 2 Sep 2010 09:41:01 +0100 [thread overview]
Message-ID: <20100902084101.GA26319@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20100902083423.GI25559@gw.healthdatacare.com>
On Thu, Sep 02, 2010 at 11:34:23AM +0300, Mika Westerberg wrote:
> Hi,
>
> On Thu, Sep 02, 2010 at 12:23:07AM +0100, Russell King - ARM Linux wrote:
> >
> > The only thing this should be doing is turning off the MMU and jumping to
> > the provided pointer.
>
> I have one question related to this.
>
> When the MMU is turned off, should we be running on 1:1 mappings?
Mappings are setup, but not for this code. This code relies upon the
instruction which jumps to already be in the pipeline at the point when
the MMU is turned off - and the destination for that jump to be a 1:1
mapping.
next prev parent reply other threads:[~2010-09-02 8:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-01 14:01 [PATCH] ARM: Implement cpu_v7_reset Linus Walleij
2010-09-01 21:18 ` Stephen Boyd
2010-09-02 5:03 ` Uwe Kleine-König
2010-09-02 8:43 ` Russell King - ARM Linux
2010-09-01 23:23 ` Russell King - ARM Linux
2010-09-02 8:34 ` Mika Westerberg
2010-09-02 8:41 ` Russell King - ARM Linux [this message]
2010-09-02 8:53 ` Mika Westerberg
2010-09-02 10:39 ` Russell King - ARM Linux
2010-09-02 11:52 ` Mika Westerberg
2010-09-02 12:18 ` Russell King - ARM Linux
2010-09-02 13:48 ` Mika Westerberg
2010-09-03 6:04 ` Mika Westerberg
2010-09-06 8:58 ` Per Fransson
2010-09-06 17:24 ` Mika Westerberg
2010-09-02 13:30 ` Per Fransson
2010-09-03 18:17 ` Per Fransson
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