From: Christian König <christian.koenig@amd.com>
Date: Tue, 18 Feb 2014 14:24:06 +0000 (+0100)
Subject: drm/radeon: improve ring lockup detection code v2
X-Git-Tag: v3.15-rc1~51^2~58^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aee4aa73a1af3176cc3eea5833cae596b4b7dd22;p=pandora-kernel.git

drm/radeon: improve ring lockup detection code v2

Use atomics and jiffies_64, so that we don't need to have the
ring mutex locked any more and avoid wrap arounds.

v2: fix some checkpatch warnings

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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