From: Alexandre Courbot <acourbot@nvidia.com>
Date: Mon, 27 Oct 2014 09:49:16 +0000 (+0900)
Subject: drm/nouveau: introduce nv_device_is_cpu_coherent()
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~77^2~15^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5d7ddf70a8445f711f5ab9ab92bd4f59f993262;p=pandora-kernel.git

drm/nouveau: introduce nv_device_is_cpu_coherent()

Add a function allowing us to know whether a device is CPU-coherent,
i.e. accesses performed by the CPU on GPU-mapped buffers will
be immediately visible on the GPU side and vice-versa.

For now, a device is considered to be coherent if it uses the PCI bus on
a non-ARM architecture.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---

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