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Commit 4b95320f authored by Wang Zhenyu's avatar Wang Zhenyu Committed by Dave Jones
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[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: default avatarWang Zhenyu <zhenyu.z.wang@intel.com>
Signed-off-by: default avatarDave Jones <davej@redhat.com>
parent 7b37b064

drivers/char/agp/intel-agp.c

+9 −0
Original line number Diff line number Diff line
@@ -1955,6 +1955,15 @@ static int agp_intel_resume(struct pci_dev *pdev) 


	pci_restore_state(pdev);



	/* We should restore our graphics device's config space,

	 * as host bridge (00:00) resumes before graphics device (02:00),

	 * then our access to its pci space can work right.

	 */

	if (intel_i810_private.i810_dev)

		pci_restore_state(intel_i810_private.i810_dev);

	if (intel_i830_private.i830_dev)

		pci_restore_state(intel_i830_private.i830_dev);



	if (bridge->driver == &intel_generic_driver)

		intel_configure();

	else if (bridge->driver == &intel_850_driver)