drm/i915: Keep MCHBAR always enabled
As we need more and more controls within MCHBAR for memory config and
power management, this trys to keep MCHBAR enabled from driver load and
only tear down in driver unload.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b99b6a8..f2742d6 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -590,6 +590,7 @@
int child_dev_num;
struct child_device_config *child_dev;
struct drm_connector *int_lvds_connector;
+ bool mchbar_need_disable;
} drm_i915_private_t;
/** driver private structure attached to each drm_gem_object */