drm/i915: Init some CHV workarounds via LRIs in ring->init_context()

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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>

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Ville Syrjälä 2014-08-27 17:33:12 +03:00 • committed by Daniel Vetter

parent 21386f86c9

commit 00e1e623e6

2 changed files with 44 additions and 16 deletions

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14

drivers/gpu/drm/i915/intel_pm.c

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46

drivers/gpu/drm/i915/intel_ringbuffer.c

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