1 files changed, 104 insertions, 71 deletions

diff --git a/linux-core/drm_fops.c b/linux-core/drm_fops.c
index ec521101..3b3a0a3c 100644
--- a/linux-core/drm_fops.c
+++ b/linux-core/drm_fops.c
@@ -43,10 +43,8 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
 
 static int drm_setup(struct drm_device * dev)
 {
-	drm_local_map_t *map;
 	int i;
 	int ret;
-	int sareapage;
 
 	if (dev->driver->firstopen) {
 		ret = dev->driver->firstopen(dev);
@@ -54,14 +52,6 @@ static int drm_setup(struct drm_device * dev)
 			return ret;
 	}
 
-	dev->magicfree.next = NULL;
-
-	/* prebuild the SAREA */
-	sareapage = max(SAREA_MAX, PAGE_SIZE);
-	i = drm_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK, &map);
-	if (i != 0)
-		return i;
-
 	atomic_set(&dev->ioctl_count, 0);
 	atomic_set(&dev->vma_count, 0);
 	dev->buf_use = 0;
@@ -76,11 +66,8 @@ static int drm_setup(struct drm_device * dev)
 	for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
 		atomic_set(&dev->counts[i], 0);
 
-	drm_ht_create(&dev->magiclist, DRM_MAGIC_HASH_ORDER);
-	INIT_LIST_HEAD(&dev->magicfree);
-
 	dev->sigdata.lock = NULL;
-	init_waitqueue_head(&dev->lock.lock_queue);
+
 	dev->queue_count = 0;
 	dev->queue_reserved = 0;
 	dev->queue_slots = 0;
@@ -260,6 +247,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
 
 	INIT_LIST_HEAD(&priv->lhead);
 	INIT_LIST_HEAD(&priv->refd_objects);
+	INIT_LIST_HEAD(&priv->fbs);
 
 	for (i = 0; i < _DRM_NO_REF_TYPES; ++i) {
 		ret = drm_ht_create(&priv->refd_object_hash[i],
@@ -283,10 +271,36 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
 			goto out_free;
 	}
 
+
+	/* if there is no current master make this fd it */
 	mutex_lock(&dev->struct_mutex);
-	if (list_empty(&dev->filelist))
-		priv->master = 1;
+	if (!priv->minor->master) {
+		priv->minor->master = drm_get_master(priv->minor);
+		if (!priv->minor->master) {
+			ret = -ENOMEM;
+			goto out_free;
+		}
 
+		priv->is_master = 1;
+		priv->master = priv->minor->master;
+
+		priv->authenticated = 1;
+		mutex_unlock(&dev->struct_mutex);
+		if (dev->driver->master_create) {
+			ret = dev->driver->master_create(dev, priv->master);
+			if (ret) {
+				drm_put_master(priv->minor->master);
+				priv->minor->master = priv->master = NULL;
+				mutex_unlock(&dev->struct_mutex);
+				goto out_free;
+			}
+		}
+	} else {
+		priv->master = priv->minor->master;
+		mutex_unlock(&dev->struct_mutex);
+	}
+
+	mutex_lock(&dev->struct_mutex);
 	list_add(&priv->lhead, &dev->filelist);
 	mutex_unlock(&dev->struct_mutex);
 
@@ -392,59 +406,63 @@ int drm_release(struct inode *inode, struct file *filp)
 		  current->pid, (long)old_encode_dev(file_priv->minor->device),
 		  dev->open_count);
 
-	if (dev->driver->reclaim_buffers_locked && dev->lock.hw_lock) {
-		if (drm_i_have_hw_lock(dev, file_priv)) {
-			dev->driver->reclaim_buffers_locked(dev, file_priv);
-		} else {
-			unsigned long _end=jiffies + 3*DRM_HZ;
-			int locked = 0;
-
-			drm_idlelock_take(&dev->lock);
-
-			/*
-			 * Wait for a while.
-			 */
-
-			do{
-				spin_lock_bh(&dev->lock.spinlock);
-				locked = dev->lock.idle_has_lock;
-				spin_unlock_bh(&dev->lock.spinlock);
-				if (locked)
-					break;
-				schedule();
-			} while (!time_after_eq(jiffies, _end));
-
-			if (!locked) {
-				DRM_ERROR("reclaim_buffers_locked() deadlock. Please rework this\n"
-					  "\tdriver to use reclaim_buffers_idlelocked() instead.\n"
-					  "\tI will go on reclaiming the buffers anyway.\n");
+	/* if the master has gone away we can't do anything with the lock */
+	if (file_priv->minor->master) {
+		if (dev->driver->reclaim_buffers_locked && file_priv->master->lock.hw_lock) {
+			if (drm_i_have_hw_lock(dev, file_priv)) {
+				dev->driver->reclaim_buffers_locked(dev, file_priv);
+			} else {
+				unsigned long _end=jiffies + 3*DRM_HZ;
+				int locked = 0;
+				
+				drm_idlelock_take(&file_priv->master->lock);
+				
+				/*
+				 * Wait for a while.
+				 */
+				
+				do{
+					spin_lock_bh(&file_priv->master->lock.spinlock);
+					locked = file_priv->master->lock.idle_has_lock;
+					spin_unlock_bh(&file_priv->master->lock.spinlock);
+					if (locked)
+						break;
+					schedule();
+				} while (!time_after_eq(jiffies, _end));
+				
+				if (!locked) {
+					DRM_ERROR("reclaim_buffers_locked() deadlock. Please rework this\n"
+						  "\tdriver to use reclaim_buffers_idlelocked() instead.\n"
+						  "\tI will go on reclaiming the buffers anyway.\n");
+				}
+				
+				dev->driver->reclaim_buffers_locked(dev, file_priv);
+				drm_idlelock_release(&file_priv->master->lock);
 			}
-
-			dev->driver->reclaim_buffers_locked(dev, file_priv);
-			drm_idlelock_release(&dev->lock);
 		}
-	}
-
-	if (dev->driver->reclaim_buffers_idlelocked && dev->lock.hw_lock) {
-
-		drm_idlelock_take(&dev->lock);
-		dev->driver->reclaim_buffers_idlelocked(dev, file_priv);
-		drm_idlelock_release(&dev->lock);
 
-	}
+		if (dev->driver->reclaim_buffers_idlelocked && file_priv->master->lock.hw_lock) {
+			
+			drm_idlelock_take(&file_priv->master->lock);
+			dev->driver->reclaim_buffers_idlelocked(dev, file_priv);
+			drm_idlelock_release(&file_priv->master->lock);
+			
+		}
 
-	if (drm_i_have_hw_lock(dev, file_priv)) {
-		DRM_DEBUG("File %p released, freeing lock for context %d\n",
-			  filp, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
-
-		drm_lock_free(&dev->lock,
-			      _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
-	}
 
+		if (drm_i_have_hw_lock(dev, file_priv)) {
+			DRM_DEBUG("File %p released, freeing lock for context %d\n",
+				  filp, _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+			
+			drm_lock_free(&file_priv->master->lock,
+				      _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
+		}
+		
 
-	if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
-	    !dev->driver->reclaim_buffers_locked) {
-		dev->driver->reclaim_buffers(dev, file_priv);
+		if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+		    !dev->driver->reclaim_buffers_locked) {
+			dev->driver->reclaim_buffers(dev, file_priv);
+		}
 	}
 
 	if (dev->driver->driver_features & DRIVER_GEM)
@@ -474,15 +492,30 @@ int drm_release(struct inode *inode, struct file *filp)
 	}
 	mutex_unlock(&dev->ctxlist_mutex);
 
-	mutex_lock(&dev->struct_mutex);
-	drm_object_release(filp);
-	if (file_priv->remove_auth_on_close == 1) {
+	if (drm_core_check_feature(dev, DRIVER_MODESET))
+		drm_fb_release(filp);
+
+	if (file_priv->is_master) {
 		struct drm_file *temp;
+		list_for_each_entry(temp, &dev->filelist, lhead) {
+			if ((temp->master == file_priv->master) &&
+			    (temp != file_priv))
+				temp->authenticated = 0;
+		}
 
-		list_for_each_entry(temp, &dev->filelist, lhead)
-			temp->authenticated = 0;
+		if (file_priv->minor->master == file_priv->master)
+			file_priv->minor->master = NULL;
+		drm_put_master(file_priv->master);
 	}
+
+	file_priv->master = NULL;
+	file_priv->is_master = 0;
+
+	mutex_lock(&dev->struct_mutex);
+	drm_object_release(filp);
+
 	list_del(&file_priv->lhead);
+
 	mutex_unlock(&dev->struct_mutex);
 
 	if (dev->driver->postclose)
@@ -496,9 +529,9 @@ int drm_release(struct inode *inode, struct file *filp)
 	atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
 	spin_lock(&dev->count_lock);
 	if (!--dev->open_count) {
-		if (atomic_read(&dev->ioctl_count) || dev->blocked) {
-			DRM_ERROR("Device busy: %d %d\n",
-				  atomic_read(&dev->ioctl_count), dev->blocked);
+		if (atomic_read(&dev->ioctl_count)) {
+			DRM_ERROR("Device busy: %d\n",
+				  atomic_read(&dev->ioctl_count));
 			spin_unlock(&dev->count_lock);
 			unlock_kernel();
 			return -EBUSY;