[PATCH] ppc32: Fix AGP and sleep again

[pandora-kernel.git] / arch / ppc64 / kernel / pmac_feature.c

diff --git a/arch/ppc64/kernel/pmac_feature.c b/arch/ppc64/kernel/pmac_feature.c
index 7f1062d..086abc1 100644 (file)
--- a/arch/ppc64/kernel/pmac_feature.c
+++ b/arch/ppc64/kernel/pmac_feature.c
@@ -674,3 +674,67 @@ void __init pmac_check_ht_link(void)
        dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
 #endif
 }
+
+/*
+ * Early video resume hook
+ */
+
+static void (*pmac_early_vresume_proc)(void *data) __pmacdata;
+static void *pmac_early_vresume_data __pmacdata;
+
+void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
+{
+       if (_machine != _MACH_Pmac)
+               return;
+       preempt_disable();
+       pmac_early_vresume_proc = proc;
+       pmac_early_vresume_data = data;
+       preempt_enable();
+}
+EXPORT_SYMBOL(pmac_set_early_video_resume);
+
+
+/*
+ * AGP related suspend/resume code
+ */
+
+static struct pci_dev *pmac_agp_bridge __pmacdata;
+static int (*pmac_agp_suspend)(struct pci_dev *bridge) __pmacdata;
+static int (*pmac_agp_resume)(struct pci_dev *bridge) __pmacdata;
+
+void __pmac pmac_register_agp_pm(struct pci_dev *bridge,
+                                int (*suspend)(struct pci_dev *bridge),
+                                int (*resume)(struct pci_dev *bridge))
+{
+       if (suspend || resume) {
+               pmac_agp_bridge = bridge;
+               pmac_agp_suspend = suspend;
+               pmac_agp_resume = resume;
+               return;
+       }
+       if (bridge != pmac_agp_bridge)
+               return;
+       pmac_agp_suspend = pmac_agp_resume = NULL;
+       return;
+}
+EXPORT_SYMBOL(pmac_register_agp_pm);
+
+void __pmac pmac_suspend_agp_for_card(struct pci_dev *dev)
+{
+       if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
+               return;
+       if (pmac_agp_bridge->bus != dev->bus)
+               return;
+       pmac_agp_suspend(pmac_agp_bridge);
+}
+EXPORT_SYMBOL(pmac_suspend_agp_for_card);
+
+void __pmac pmac_resume_agp_for_card(struct pci_dev *dev)
+{
+       if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
+               return;
+       if (pmac_agp_bridge->bus != dev->bus)
+               return;
+       pmac_agp_resume(pmac_agp_bridge);
+}
+EXPORT_SYMBOL(pmac_resume_agp_for_card);