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authorakpm@osdl.org <akpm@osdl.org>2006-01-03 23:00:10 -0800
committerDave Jones <davej@redhat.com>2006-01-16 20:53:45 -0800
commit90be4b49b8b54505772a6a766ac0891ec92b4c2d (patch)
treef3d679d5be9a2694b226ac255170b1fb2e06ec37 /drivers
parent496ebd386439fee838df6b9c7d1306c36e7f6952 (diff)
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[AGPGART] Suspend/Resume support for AMD64 GART.
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/agp/amd64-agp.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 810679dcbbb..9964c508c11 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -600,6 +600,26 @@ static void __devexit agp_amd64_remove(struct pci_dev *pdev)
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[] = {
{
.class = (PCI_CLASS_BRIDGE_HOST << 8),
@@ -718,6 +738,10 @@ static struct pci_driver agp_amd64_pci_driver = {
.id_table = agp_amd64_pci_table,
.probe = agp_amd64_probe,
.remove = agp_amd64_remove,
+#ifdef CONFIG_PM
+ .suspend = agp_amd64_suspend,
+ .resume = agp_amd64_resume,
+#endif
};