linux-kernel - Re: cmpxchg is not available to generic code

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Message-ID: <21d7e9970707190123n328300a6m8debe274b959ab30@mail.gmail.com>
Date:	Thu, 19 Jul 2007 18:23:40 +1000
From:	"Dave Airlie" <airlied@...il.com>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	"David Miller" <davem@...emloft.net>, airlied@...ux.ie,
	linux-kernel@...r.kernel.org
Subject: Re: cmpxchg is not available to generic code

On 7/19/07, Andrew Morton <akpm@...ux-foundation.org> wrote:
> On Thu, 19 Jul 2007 18:15:03 +1000 "Dave Airlie" <airlied@...il.com> wrote:
>
> > Maybe we could add CONFIG_HAVE_CMPXCHG and let DRM depend on it..
>
> That would certainly be better than adding a sprinkle of architectures
> in DRM Kconfig dependencies.
>
> I don't know how important DRM is on ARM.  Zero?
>

I'd guess zero I suppose if you wanted you could hook up a PCI
graphics card on ARM, but if you do that I think you could implement
cmpxchg :-)

Dave.
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