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[AGPGART] Suspend/Resume support for AMD64 GART.

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This adds support for suspend/resume to the amd64-agp driver. Without
it, X displays garbage after resume from swsusp.

Signed-off-by: Michal Schmidt <xschmi00@stud.feec.vutbr.cz>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
akpm@osdl.org 2006-01-03 23:00:10 -08:00 committed by Dave Jones
parent 496ebd3864
commit 90be4b49b8
1 changed files with 24 additions and 0 deletions
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24
drivers/char/agp/amd64-agp.c
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@ -600,6 +600,26 @@ static void __devexit agp_amd64_remove(struct pci_dev *pdev)
agp_put_bridge(bridge); agp_put_bridge(bridge);
} }
#ifdef CONFIG_PM
static int agp_amd64_suspend(struct pci_dev *pdev, pm_message_t state)
{
pci_save_state(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
}
static int agp_amd64_resume(struct pci_dev *pdev)
{
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
return amd_8151_configure();
}
#endif /* CONFIG_PM */
static struct pci_device_id agp_amd64_pci_table[] = { static struct pci_device_id agp_amd64_pci_table[] = {
{ {
.class = (PCI_CLASS_BRIDGE_HOST << 8), .class = (PCI_CLASS_BRIDGE_HOST << 8),
@ -718,6 +738,10 @@ static struct pci_driver agp_amd64_pci_driver = {
.id_table = agp_amd64_pci_table, .id_table = agp_amd64_pci_table,
.probe = agp_amd64_probe, .probe = agp_amd64_probe,
.remove = agp_amd64_remove, .remove = agp_amd64_remove,
#ifdef CONFIG_PM
.suspend = agp_amd64_suspend,
.resume = agp_amd64_resume,
#endif
}; };