5 files changed, 72 insertions, 19 deletions

diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 810679dcbbb0..9964c508c111 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
 };
 
 
diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c
index 53372a83b675..5b74c36c116c 100644
--- a/drivers/char/agp/ati-agp.c
+++ b/drivers/char/agp/ati-agp.c
@@ -244,6 +244,22 @@ static int ati_configure(void)
 }
 
 
+#ifdef CONFIG_PM
+static int agp_ati_resume(struct pci_dev *dev)
+{
+        pci_restore_state(dev);
+
+        return ati_configure();
+}
+
+static int agp_ati_suspend(struct pci_dev *dev, pm_message_t state)
+{
+        pci_save_state(dev);
+
+        return 0;
+}
+#endif
+
 /*
  *Since we don't need contigious memory we just try
  * to get the gatt table once
@@ -525,6 +541,10 @@ static struct pci_driver agp_ati_pci_driver = {
         .id_table       = agp_ati_pci_table,
         .probe          = agp_ati_probe,
         .remove         = agp_ati_remove,
+#ifdef CONFIG_PM
+        .resume         = agp_ati_resume,
+        .suspend        = agp_ati_suspend,
+#endif
 };
 
 static int __init agp_ati_init(void)
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 17f520c9d471..97eeb2345b18 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -592,7 +592,7 @@ static int agp_mmap(struct file *file, struct vm_area_struct *vma)
         struct agp_file_private *priv = file->private_data;
         struct agp_kern_info kerninfo;
 
-        down(&(agp_fe.agp_mutex));
+        mutex_lock(&(agp_fe.agp_mutex));
 
         if (agp_fe.backend_acquired != TRUE)
                 goto out_eperm;
@@ -627,7 +627,7 @@ static int agp_mmap(struct file *file, struct vm_area_struct *vma)
                                             size, vma->vm_page_prot)) {
                         goto out_again;
                 }
-                up(&(agp_fe.agp_mutex));
+                mutex_unlock(&(agp_fe.agp_mutex));
                 return 0;
         }
 
@@ -643,20 +643,20 @@ static int agp_mmap(struct file *file, struct vm_area_struct *vma)
                                             size, vma->vm_page_prot)) {
                         goto out_again;
                 }
-                up(&(agp_fe.agp_mutex));
+                mutex_unlock(&(agp_fe.agp_mutex));
                 return 0;
         }
 
 out_eperm:
-        up(&(agp_fe.agp_mutex));
+        mutex_unlock(&(agp_fe.agp_mutex));
         return -EPERM;
 
 out_inval:
-        up(&(agp_fe.agp_mutex));
+        mutex_unlock(&(agp_fe.agp_mutex));
         return -EINVAL;
 
 out_again:
-        up(&(agp_fe.agp_mutex));
+        mutex_unlock(&(agp_fe.agp_mutex));
         return -EAGAIN;
 }
 
@@ -664,7 +664,7 @@ static int agp_release(struct inode *inode, struct file *file)
 {
         struct agp_file_private *priv = file->private_data;
 
-        down(&(agp_fe.agp_mutex));
+        mutex_lock(&(agp_fe.agp_mutex));
 
         DBG("priv=%p", priv);
 
@@ -687,7 +687,7 @@ static int agp_release(struct inode *inode, struct file *file)
         agp_remove_file_private(priv);
         kfree(priv);
         file->private_data = NULL;
-        up(&(agp_fe.agp_mutex));
+        mutex_unlock(&(agp_fe.agp_mutex));
         return 0;
 }
 
@@ -698,7 +698,7 @@ static int agp_open(struct inode *inode, struct file *file)
         struct agp_client *client;
         int rc = -ENXIO;
 
-        down(&(agp_fe.agp_mutex));
+        mutex_lock(&(agp_fe.agp_mutex));
 
         if (minor != AGPGART_MINOR)
                 goto err_out;
@@ -723,13 +723,13 @@ static int agp_open(struct inode *inode, struct file *file)
         file->private_data = (void *) priv;
         agp_insert_file_private(priv);
         DBG("private=%p, client=%p", priv, client);
-        up(&(agp_fe.agp_mutex));
+        mutex_unlock(&(agp_fe.agp_mutex));
         return 0;
 
 err_out_nomem:
         rc = -ENOMEM;
 err_out:
-        up(&(agp_fe.agp_mutex));
+        mutex_unlock(&(agp_fe.agp_mutex));
         return rc;
 }
 
@@ -985,7 +985,7 @@ static int agp_ioctl(struct inode *inode, struct file *file,
         int ret_val = -ENOTTY;
 
         DBG("priv=%p, cmd=%x", curr_priv, cmd);
-        down(&(agp_fe.agp_mutex));
+        mutex_lock(&(agp_fe.agp_mutex));
 
         if ((agp_fe.current_controller == NULL) &&
             (cmd != AGPIOC_ACQUIRE)) {
@@ -1055,7 +1055,7 @@ static int agp_ioctl(struct inode *inode, struct file *file,
 
 ioctl_out:
         DBG("ioctl returns %d\n", ret_val);
-        up(&(agp_fe.agp_mutex));
+        mutex_unlock(&(agp_fe.agp_mutex));
         return ret_val;
 }
 
@@ -1081,7 +1081,7 @@ static struct miscdevice agp_miscdev =
 int agp_frontend_initialize(void)
 {
         memset(&agp_fe, 0, sizeof(struct agp_front_data));
-        sema_init(&(agp_fe.agp_mutex), 1);
+        mutex_init(&(agp_fe.agp_mutex));
 
         if (misc_register(&agp_miscdev)) {
                 printk(KERN_ERR PFX "unable to get minor: %d\n", AGPGART_MINOR);
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index e7bed5047dcc..631531fd97a5 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -422,7 +422,8 @@ static void intel_i830_init_gtt_entries(void)
                         /* Check it's really I915G */
                         if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
                             agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
-                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB)
+                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
+                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB)
                                 gtt_entries = MB(48) - KB(size);
                         else
                                 gtt_entries = 0;
@@ -431,7 +432,8 @@ static void intel_i830_init_gtt_entries(void)
                         /* Check it's really I915G */
                         if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
                             agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
-                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB)
+                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
+                            agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB)
                                 gtt_entries = MB(64) - KB(size);
                         else
                                 gtt_entries = 0;
@@ -1681,6 +1683,14 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
                 }
                 name = "945G";
                 break;
+        case PCI_DEVICE_ID_INTEL_82945GM_HB:
+                if (find_i830(PCI_DEVICE_ID_INTEL_82945GM_IG)) {
+                        bridge->driver = &intel_915_driver;
+                } else {
+                        bridge->driver = &intel_845_driver;
+                }
+                name = "945GM";
+                break;
         case PCI_DEVICE_ID_INTEL_7505_0:
                 bridge->driver = &intel_7505_driver;
                 name = "E7505";
@@ -1821,6 +1831,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
         ID(PCI_DEVICE_ID_INTEL_82915G_HB),
         ID(PCI_DEVICE_ID_INTEL_82915GM_HB),
         ID(PCI_DEVICE_ID_INTEL_82945G_HB),
+        ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
         { }
 };
 
diff --git a/drivers/char/agp/isoch.c b/drivers/char/agp/isoch.c
index 40083241804e..7c14a096b85e 100644
--- a/drivers/char/agp/isoch.c
+++ b/drivers/char/agp/isoch.c
@@ -218,10 +218,8 @@ static int agp_3_5_isochronous_node_enable(struct agp_bridge_data *bridge,
                         master[cdev].rq *= (1 << (master[cdev].y - 1));
 
                 tot_rq += master[cdev].rq;
-
-                if (cdev == ndevs-1)
-                        master[cdev].n += rem;
         }
+        master[ndevs-1].n += rem;
 
         /* Figure the number of isochronous and asynchronous RQ slots the
          * target is providing. */