linux-kernel - Re: [PATCH v1 1/3] gpu: host1x: Remove implicit IOMMU backing on client's registration

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Message-ID: <20190624070413.GA23846@infradead.org>
Date:   Mon, 24 Jun 2019 00:04:13 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        dri-devel@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/3] gpu: host1x: Remove implicit IOMMU backing on
 client's registration

Don't we have a device tree problem here if there is a domain covering
them?  I though we should only pick up an IOMMU for a given device
if DT explicitly asked for that?