mirror of https://gitee.com/openkylin/linux.git
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>
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drivers/gpu/drm/i915
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@ -4794,7 +4794,8 @@ i915_gem_load(struct drm_device *dev)
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spin_unlock(&shrink_list_lock);
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/* Old X drivers will take 0-2 for front, back, depth buffers */
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dev_priv->fence_reg_start = 3;
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if (!drm_core_check_feature(dev, DRIVER_MODESET))
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dev_priv->fence_reg_start = 3;
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if (IS_I965G(dev) || IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
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dev_priv->num_fence_regs = 16;
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