drm/i915: correctly set IGD device's gtt size for KMS.
IGD device only has last 1 page used by GTT. This should match the AGP gart code. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
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@ -922,7 +922,7 @@ static int i915_probe_agp(struct drm_device *dev, unsigned long *aperture_size,
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* Some of the preallocated space is taken by the GTT
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* and popup. GTT is 1K per MB of aperture size, and popup is 4K.
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*/
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if (IS_G4X(dev))
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if (IS_G4X(dev) || IS_IGD(dev))
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overhead = 4096;
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else
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overhead = (*aperture_size / 1024) + 4096;
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