linux-kernel - Re: [PATCH v6 1/7] drm/tilcdc: ensure nonatomic iowrite64 is not used

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Message-ID: <15c19bbe-a178-5c60-530e-14229bfdc906@deltatee.com>
Date:   Fri, 4 Aug 2017 09:47:37 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Tomi Valkeinen <tomi.valkeinen@...com>,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-ntb@...glegroups.com, linux-crypto@...r.kernel.org,
        Jyri Sarha <jsarha@...com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Horia Geantă <horia.geanta@....com>,
        Stephen Bates <sbates@...thlin.com>,
        David Airlie <airlied@...ux.ie>
Subject: Re: [PATCH v6 1/7] drm/tilcdc: ensure nonatomic iowrite64 is not used



On 04/08/17 07:03 AM, Tomi Valkeinen wrote:
> I haven't really followed the discussion on this, but if the tilcdc's
> use of iowrite64 causes (real) problems/complications elsewhere, I think
> we could drop it.

Well, that's up to you. The patch I submitted should still be correct
though, and if arm ever gets a proper atomic iowrite64 implementation it
would be good to use it. So in an annotative sense it's nice to keep the
function call in there.

Thanks,

Logan