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

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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>
This commit is contained in:
Eric Anholt 2010-01-26 09:43:10 -08:00
parent c480441169
commit b397c836ef
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/i915_gem.c
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@ -4794,7 +4794,8 @@ i915_gem_load(struct drm_device *dev)
spin_unlock(&shrink_list_lock);
/* Old X drivers will take 0-2 for front, back, depth buffers */
dev_priv->fence_reg_start = 3;
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))
dev_priv->num_fence_regs = 16;