drm/i915: Don't reserve compatibility fence regs in KMS mode.



The fence start is for compatibility with UMS X Servers before fence
management.  KMS X Servers only started doing tiling after fence
management appeared.

Signed-off-by: Eric Anholt <eric@anholt.net>

parent c4804411

drivers/gpu/drm/i915/i915_gem.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -4794,6 +4794,7 @@ i915_gem_load(struct drm_device *dev)
		spin_unlock(&shrink_list_lock);

		/* Old X drivers will take 0-2 for front, back, depth buffers */
		if (!drm_core_check_feature(dev, DRIVER_MODESET))
		dev_priv->fence_reg_start = 3;

		if (IS_I965G(dev) \|\| IS_I945G(dev) \|\| IS_I945GM(dev) \|\| IS_G33(dev))