From: Alexandre Courbot <acourbot@nvidia.com>
Date: Fri, 2 May 2014 09:32:34 +0000 (+0900)
Subject: drm/nouveau/bar: only ioremap BAR3 if it exists
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~44^2~2^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53d206bb4aadba255d20b70893ed5ba1d89f41e1;p=pandora-kernel.git

drm/nouveau/bar: only ioremap BAR3 if it exists

Some chips that use system memory exclusively (e.g. GK20A) do not
expose 2 BAR regions. For them only BAR1 exists, and it should be used
for USERD mapping. Do not map BAR3 if its resource does not exist.

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

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