linux-kernel - fix radeon and amdgpu for addressing limited root ports

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Message-Id: <20190815072703.7010-1-hch@lst.de>
Date:   Thu, 15 Aug 2019 09:26:59 +0200
From:   Christoph Hellwig <hch@....de>
To:     Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>
Cc:     Atish Patra <Atish.Patra@....com>,
        Alistair Francis <alistair.francis@....com>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: fix radeon and amdgpu for addressing limited root ports

Hi AMD graphics maintainers,

this series fixes a problem in the radeon driver for systems where the
PCIe root port only supports limited (32-bit) addressing as reported
by Atish.  I then also fixed the same issue in amdgpu as the code was
copy and pasted there, and cleaned up the dma mask setting while
touching that area.