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[AGPGART] Suspend/Resume support for nVidia nForce AGP.

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Based on a patch from the Ubuntu kernel.

Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Dave Jones 2006-06-20 00:44:38 -04:00
parent a4aec26223
commit c5f2f261e7
1 changed files with 29 additions and 0 deletions
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29
drivers/char/agp/nvidia-agp.c
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@ -376,6 +376,31 @@ static void __devexit agp_nvidia_remove(struct pci_dev *pdev)
agp_put_bridge(bridge);
}
#ifdef CONFIG_PM
static int agp_nvidia_suspend(struct pci_dev *pdev, pm_message_t state)
{
pci_save_state (pdev);
pci_set_power_state (pdev, 3);
return 0;
}
static int agp_nvidia_resume(struct pci_dev *pdev)
{
struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
/* set power state 0 and restore PCI space */
pci_set_power_state (pdev, 0);
pci_restore_state(pdev);
/* reconfigure AGP hardware again */
nvidia_configure();
return 0;
}
#endif
static struct pci_device_id agp_nvidia_pci_table[] = {
{
.class = (PCI_CLASS_BRIDGE_HOST << 8),
@ -403,6 +428,10 @@ static struct pci_driver agp_nvidia_pci_driver = {
.id_table = agp_nvidia_pci_table,
.probe = agp_nvidia_probe,
.remove = agp_nvidia_remove,
#ifdef CONFIG_PM
.suspend = agp_nvidia_suspend,
.resume = agp_nvidia_resume,
#endif
};
static int __init agp_nvidia_init(void)