From: Oded Gabbay <oded.gabbay@amd.com>
Date: Mon, 14 Jul 2014 12:36:08 +0000 (+0300)
Subject: drm/radeon: adding synchronization for GRBM GFX
X-Git-Tag: omap-for-v3.19/fixes-rc1~80^2~36^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1c0a46255f8d7daf5b601668836e185fd1294e94;p=pandora-kernel.git

drm/radeon: adding synchronization for GRBM GFX

Implementing a lock for selecting and accessing shader engines and arrays.
This lock will make sure that radeon and amdkfd are not colliding when
accessing shader engines and arrays with GRBM_GFX_INDEX register.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
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