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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: Wang Zhenyu <zhenyu.z.wang@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Wang Zhenyu 2007-01-17 11:07:54 +08:00 committed by Dave Jones
parent 7b37b064c2
commit 4b95320fc4
1 changed files with 9 additions and 0 deletions
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9
drivers/char/agp/intel-agp.c
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@ -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)