linux-kernel - Re: [PATCH 2/9] Revert "drm/msm/a6xx: Use the DMA API for GMU memory objects"

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Message-ID: <20200421112130.GA29925@infradead.org>
Date:   Tue, 21 Apr 2020 04:21:30 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Jonathan Marek <jonathan@...ek.ca>
Cc:     freedreno@...ts.freedesktop.org, Rob Clark <robdclark@...il.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Jordan Crouse <jcrouse@...eaurora.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Sharat Masetty <smasetty@...eaurora.org>,
        "Michael J. Ruhl" <michael.j.ruhl@...el.com>,
        "open list:DRM DRIVER FOR MSM ADRENO GPU" 
        <linux-arm-msm@...r.kernel.org>,
        "open list:DRM DRIVER FOR MSM ADRENO GPU" 
        <dri-devel@...ts.freedesktop.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/9] Revert "drm/msm/a6xx: Use the DMA API for GMU memory
 objects"

Using VM_IOREMAP outside of ioremap implementations is completely
bogus.  Don't go there, especialy with such a horribly bad commit log.