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Diffstat (limited to 'linux-core/drm_fops.c')
-rw-r--r--linux-core/drm_fops.c228
1 files changed, 115 insertions, 113 deletions
diff --git a/linux-core/drm_fops.c b/linux-core/drm_fops.c
index 7bc73d26..ec521101 100644
--- a/linux-core/drm_fops.c
+++ b/linux-core/drm_fops.c
@@ -43,8 +43,10 @@ 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);
@@ -52,13 +54,20 @@ 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;
+ atomic_set(&dev->buf_alloc, 0);
- if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && !drm_core_check_feature(dev, DRIVER_MODESET)) {
- dev->buf_use = 0;
- atomic_set(&dev->buf_alloc, 0);
-
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) {
i = drm_dma_setup(dev);
if (i < 0)
return i;
@@ -67,8 +76,11 @@ static int drm_setup(struct drm_device * dev)
for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
atomic_set(&dev->counts[i], 0);
- dev->sigdata.lock = NULL;
+ 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;
@@ -222,6 +234,7 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
int minor_id = iminor(inode);
struct drm_file *priv;
int ret;
+ int i, j;
if (filp->f_flags & O_EXCL)
return -EBUSY; /* No exclusive opens */
@@ -246,7 +259,20 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
priv->lock_count = 0;
INIT_LIST_HEAD(&priv->lhead);
- INIT_LIST_HEAD(&priv->fbs);
+ INIT_LIST_HEAD(&priv->refd_objects);
+
+ for (i = 0; i < _DRM_NO_REF_TYPES; ++i) {
+ ret = drm_ht_create(&priv->refd_object_hash[i],
+ DRM_FILE_HASH_ORDER);
+ if (ret)
+ break;
+ }
+
+ if (ret) {
+ for (j = 0; j < i; ++j)
+ drm_ht_remove(&priv->refd_object_hash[j]);
+ goto out_free;
+ }
if (dev->driver->driver_features & DRIVER_GEM)
drm_gem_open(dev, priv);
@@ -257,42 +283,10 @@ 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 (!priv->minor->master) {
- /* create a new master */
- priv->minor->master = drm_master_create(priv->minor);
- if (!priv->minor->master) {
- ret = -ENOMEM;
- goto out_free;
- }
+ if (list_empty(&dev->filelist))
+ priv->master = 1;
- priv->is_master = 1;
- /* take another reference for the copy in the local file priv */
- priv->master = drm_master_get(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) {
- mutex_lock(&dev->struct_mutex);
- /* drop both references if this fails */
- drm_master_put(&priv->minor->master);
- drm_master_put(&priv->master);
- mutex_unlock(&dev->struct_mutex);
- goto out_free;
- }
- }
- } else {
- /* get a reference to the master */
- priv->master = drm_master_get(priv->minor->master);
- mutex_unlock(&dev->struct_mutex);
- }
-
- mutex_lock(&dev->struct_mutex);
list_add(&priv->lhead, &dev->filelist);
mutex_unlock(&dev->struct_mutex);
@@ -338,6 +332,33 @@ int drm_fasync(int fd, struct file *filp, int on)
}
EXPORT_SYMBOL(drm_fasync);
+static void drm_object_release(struct file *filp)
+{
+ struct drm_file *priv = filp->private_data;
+ struct list_head *head;
+ struct drm_ref_object *ref_object;
+ int i;
+
+ /*
+ * Free leftover ref objects created by me. Note that we cannot use
+ * list_for_each() here, as the struct_mutex may be temporarily
+ * released by the remove_() functions, and thus the lists may be
+ * altered.
+ * Also, a drm_remove_ref_object() will not remove it
+ * from the list unless its refcount is 1.
+ */
+
+ head = &priv->refd_objects;
+ while (head->next != head) {
+ ref_object = list_entry(head->next, struct drm_ref_object, list);
+ drm_remove_ref_object(priv, ref_object);
+ head = &priv->refd_objects;
+ }
+
+ for (i = 0; i < _DRM_NO_REF_TYPES; ++i)
+ drm_ht_remove(&priv->refd_object_hash[i]);
+}
+
/**
* Release file.
*
@@ -371,63 +392,59 @@ int drm_release(struct inode *inode, struct file *filp)
current->pid, (long)old_encode_dev(file_priv->minor->device),
dev->open_count);
- /* 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);
+ 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 (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);
-
+ dev->driver->reclaim_buffers_locked(dev, file_priv);
+ drm_idlelock_release(&dev->lock);
}
+ }
+ if (dev->driver->reclaim_buffers_idlelocked && dev->lock.hw_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));
- }
-
+ drm_idlelock_take(&dev->lock);
+ dev->driver->reclaim_buffers_idlelocked(dev, file_priv);
+ drm_idlelock_release(&dev->lock);
- if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
- !dev->driver->reclaim_buffers_locked) {
- dev->driver->reclaim_buffers(dev, file_priv);
- }
+ }
+
+ 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_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)
@@ -457,29 +474,14 @@ int drm_release(struct inode *inode, struct file *filp)
}
mutex_unlock(&dev->ctxlist_mutex);
- if (drm_core_check_feature(dev, DRIVER_MODESET))
- drm_fb_release(filp);
-
mutex_lock(&dev->struct_mutex);
-
- if (file_priv->is_master) {
+ drm_object_release(filp);
+ if (file_priv->remove_auth_on_close == 1) {
struct drm_file *temp;
- list_for_each_entry(temp, &dev->filelist, lhead) {
- if ((temp->master == file_priv->master) &&
- (temp != file_priv))
- temp->authenticated = 0;
- }
- if (file_priv->minor->master == file_priv->master) {
- /* drop the reference held my the minor */
- drm_master_put(&file_priv->minor->master);
- }
+ list_for_each_entry(temp, &dev->filelist, lhead)
+ temp->authenticated = 0;
}
-
- /* drop the reference held my the file priv */
- drm_master_put(&file_priv->master);
- file_priv->is_master = 0;
-
list_del(&file_priv->lhead);
mutex_unlock(&dev->struct_mutex);
@@ -494,9 +496,9 @@ 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)) {
- DRM_ERROR("Device busy: %d\n",
- atomic_read(&dev->ioctl_count));
+ if (atomic_read(&dev->ioctl_count) || dev->blocked) {
+ DRM_ERROR("Device busy: %d %d\n",
+ atomic_read(&dev->ioctl_count), dev->blocked);
spin_unlock(&dev->count_lock);
unlock_kernel();
return -EBUSY;