[AGPGART] intel_agp: restore graphics device's pci space early in resume
Currently in resuming path graphics device's pci space restore is behind host bridge, so resume function wrongly accesses graphics device's space. This makes resuming failure which crashed X. here's a patch to restore device's pci space early, which makes resuming ok with X. Signed-off-by: Wang Zhenyu <zhenyu.z.wang@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
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@ -1955,6 +1955,15 @@ static int agp_intel_resume(struct pci_dev *pdev)
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pci_restore_state(pdev);
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/* We should restore our graphics device's config space,
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* as host bridge (00:00) resumes before graphics device (02:00),
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* then our access to its pci space can work right.
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*/
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if (intel_i810_private.i810_dev)
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pci_restore_state(intel_i810_private.i810_dev);
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if (intel_i830_private.i830_dev)
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pci_restore_state(intel_i830_private.i830_dev);
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if (bridge->driver == &intel_generic_driver)
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intel_configure();
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else if (bridge->driver == &intel_850_driver)
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