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Commit c5f2f261 authored by Dave Jones's avatar Dave Jones
Browse files

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



Based on a patch from the Ubuntu kernel.

Signed-off-by: default avatarBen Collins <bcollins@ubuntu.com>
Signed-off-by: default avatarDave Jones <davej@redhat.com>
parent a4aec262

drivers/char/agp/nvidia-agp.c

+29 −0
Original line number Diff line number Diff line
@@ -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)