Dave,
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. So
here's a patch to restore device's pci space early, which makes
resuming ok with X. Patch against 2.6.20-rc5.
Signed-off-by: Wang Zhenyu <[email protected]>
---
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index ab0a9c0..7af734b 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -1955,6 +1955,15 @@ static int agp_intel_resume(struct pci_d
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)
-
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