drm/i915: Init some CHV workarounds via LRIs in ring->init_context()
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Wed, 27 Aug 2014 14:33:12 +0000 (17:33 +0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 3 Sep 2014 09:04:59 +0000 (11:04 +0200)
commit00e1e623e62cd8452e28633182b91ddcbb70cc7c
tree0c34d696170a4cee7ad138eb008080bf7c6a3016
parent21386f86c9af92fea4897e90c1671b3f0010e936
drm/i915: Init some CHV workarounds via LRIs in ring->init_context()

Follow the BDW example and apply the workarounds touching registers
which are saved in the context image through LRIs in the new
ring->init_context() hook.

This makes Mesa much happier and eg. glxgears doesn't hang after
the first frame.

Cc: Arun Siluvery <arun.siluvery@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Add missing wa table initialization to avoid a functional
conflict with Arun's wa table debugfs support.]
Reviewed-by: "Barbalho, Rafael" <rafael.barbalho@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c
drivers/gpu/drm/i915/intel_ringbuffer.c