linux-kernel - Re: fsl-dcu not works on latest "drm-next"

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Message-ID: <20160527122010.GH16172@sirena.org.uk>
Date:	Fri, 27 May 2016 13:20:10 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Stefan Agner <stefan@...er.ch>
Cc:	Alexander Stein <alexander.stein@...tec-electronic.com>,
	linux-kernel@...r.kernel.org, Meng Yi <meng.yi@....com>,
	dri-devel@...ts.freedesktop.org, David Airlie <airlied@...ux.ie>,
	airlied@...hat.com
Subject: Re: fsl-dcu not works on latest "drm-next"

On Thu, May 26, 2016 at 10:54:16PM -0700, Stefan Agner wrote:
> On 2016-05-26 02:11, Alexander Stein wrote:

> > This needs to be a flat cache. See
> > https://lists.freedesktop.org/archives/dri-devel/2016-January/099121.html
> > or https://lkml.org/lkml/2016/3/24/281
> > max_register also needs an appropriate value.

> FWIW, the latest patch which addresses this issue is Patch 5/6 of this
> patchset:
> https://lkml.org/lkml/2016/4/19/617

> Unfortunately, that patchset missed the 4.7 merge window. I still miss
> an Ack for the first patch of this patchset. But should go into the next
> release...

That's another way of addressing it of course, but unless the register
map actually is sparse it's probably still sensible to send the
conversion to flat cache as a fix.

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