Date: Wed, 2 Dec 2015 13:57:57 +0000
From: Will Deacon <will.deacon@arm.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org,
        Yury Norov <ynorov@caviumnetworks.com>, pinskia@gmail.com,
        Prasun.Kapoor@caviumnetworks.com, catalin.marinas@arm.com,
        Nathan_Lynch@mentor.com, linux-kernel@vger.kernel.org, agraf@suse.de,
        klimov.linux@gmail.com, broonie@kernel.org, jan.dakinevich@gmail.com,
        joseph@codesourcery.com, ddaney.cavm@gmail.com, schwab@suse.de,
        bamvor.zhangjian@huawei.com, philipp.tomsich@theobroma-systems.com,
        andrey.konovalov@linaro.org, christoph.muellner@theobroma-systems.com
Subject: Re: [PATCH v6 14/19] arm64:ilp32: add sys_ilp32.c and a separate
 table (in entry.S) to use it
Message-ID: <20151202135757.GA6367@arm.com>
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 <2623148.F7bGmbuQQh@wuerfel>
 <7159845.QvBivUPZSS@wuerfel>
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On Wed, Dec 02, 2015 at 02:54:18PM +0100, Arnd Bergmann wrote:
> On Wednesday 02 December 2015 14:46:32 Arnd Bergmann wrote:
> > On Wednesday 02 December 2015 13:35:22 Yury Norov wrote:
> > > On Wed, Dec 02, 2015 at 09:37:05AM +0100, Arnd Bergmann wrote:
> > > > The 4*PAGE_SIZE on ARM is an architecture specific oddity, I believe
> > > > to work around aliasing caches on ARMv6. As no other architecture does
> > > > this, we're probably better off not duplicating it for aarch64-ilp32
> > > > and just use sys_shmat as your v6 patch does.
> > > >       Arnd
> > > 
> > > If you feel ARMv6 fix for caches will come soon, just ignore it.
> > > Otherwise, please pull it because compat_sys_shmat is broken now
> > > for 64K pages.
> > > 
> > > Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
> > > 
> > 
> > Sounds good. Will, do you want to take this for the arm64 tree.
> > 
> > Acked-by: Arnd Bergmann <arnd@arndb.de>
> 
> (actually Cc Will Deacon)
> 
> Will or Catalin, does this look ok to you?

Looks ok on the face of it (although I haven't tried compat w/ 64k pages).

I'll take it via the arm64 tree with your ack.

Cheers,

Will
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