From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] ARM: mmp: bring up pxa988 with device tree support
Date: Fri, 14 Jun 2013 14:56:15 +0200 [thread overview]
Message-ID: <2766142.mFu63TyH69@wuerfel> (raw)
In-Reply-To: <CADApbeh9EJDetkvx9Sq=y58mkhU_X1oo-e_hgZqeBV9nriqTiQ@mail.gmail.com>
On Friday 14 June 2013 17:15:33 Chao Xie wrote:
> On Mon, Jun 10, 2013 at 4:35 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> > I guess that is a problem we have on other platforms as well, we should
> > find a generic solution for that. It would be nice to reserve a page
> > in "fixmap" and have common code map the SCU page into that.
> >
>
> So you mean that reserve a page in arch/arm/asm/include/fixmap.h?
Yes.
> This reserve will depend on the cpu type beacuse only A9 will have SCU part.
I think A5 and ARM11MPCore as well.
> I do not know that in fixmap, the #ifdef is acceptable or not.
Yes, it is. We don't really use fixmap on ARM for anything other than
kmap_atomic at the moment. Please have a look at the powerpc and x86
implementations.
> For the common code to map the SCU page, where do you suggest to put it?
arch/arm/kernel/smp_scu.c.
Arnd
next prev parent reply other threads:[~2013-06-14 12:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-31 2:58 [PATCH v2] bring up pxa988 with DT Neil Zhang
2013-05-31 2:58 ` [PATCH v2] ARM: mmp: bring up pxa988 with device tree support Neil Zhang
2013-05-31 11:24 ` Arnd Bergmann
2013-06-06 2:48 ` Neil Zhang
2013-06-06 16:26 ` Arnd Bergmann
2013-06-08 1:07 ` Chao Xie
2013-06-10 8:35 ` Arnd Bergmann
2013-06-14 9:15 ` Chao Xie
2013-06-14 12:56 ` Arnd Bergmann [this message]
2013-06-17 4:17 ` Chao Xie
2013-06-17 21:34 ` Arnd Bergmann
2013-06-20 0:55 ` Chao Xie
2013-06-28 2:15 ` Chao Xie
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