Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...

[powerpc.git] / drivers / char / agp / nvidia-agp.c

diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c
index 70b8ed9..df7f37b 100644 (file)
--- a/drivers/char/agp/nvidia-agp.c
+++ b/drivers/char/agp/nvidia-agp.c
@@ -11,6 +11,7 @@
 #include <linux/gfp.h>
 #include <linux/page-flags.h>
 #include <linux/mm.h>
+#include <linux/jiffies.h>
 #include "agp.h"
 
 /* NVIDIA registers */
@@ -256,7 +257,7 @@ static void nvidia_tlbflush(struct agp_memory *mem)
                do {
                        pci_read_config_dword(nvidia_private.dev_1,
                                        NVIDIA_1_WBC, &wbc_reg);
-                       if ((signed)(end - jiffies) <= 0) {
+                       if (time_before_eq(end, jiffies)) {
                                printk(KERN_ERR PFX
                                    "TLB flush took more than 3 seconds.\n");
                        }
@@ -375,6 +376,29 @@ 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)
+{
+       /* 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),
@@ -402,6 +426,10 @@ 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)