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path: root/drivers/gpu/drm/drm_stub.c
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Diffstat (limited to 'drivers/gpu/drm/drm_stub.c')
-rw-r--r--drivers/gpu/drm/drm_stub.c142
1 files changed, 132 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 66c96ec6667..5ca132afa4f 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -57,6 +57,14 @@ static int drm_minor_get_id(struct drm_device *dev, int type)
int ret;
int base = 0, limit = 63;
+ if (type == DRM_MINOR_CONTROL) {
+ base += 64;
+ limit = base + 127;
+ } else if (type == DRM_MINOR_RENDER) {
+ base += 128;
+ limit = base + 255;
+ }
+
again:
if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) {
DRM_ERROR("Out of memory expanding drawable idr\n");
@@ -79,6 +87,104 @@ again:
return new_id;
}
+struct drm_master *drm_master_create(struct drm_minor *minor)
+{
+ struct drm_master *master;
+
+ master = drm_calloc(1, sizeof(*master), DRM_MEM_DRIVER);
+ if (!master)
+ return NULL;
+
+ kref_init(&master->refcount);
+ spin_lock_init(&master->lock.spinlock);
+ init_waitqueue_head(&master->lock.lock_queue);
+ drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
+ INIT_LIST_HEAD(&master->magicfree);
+ master->minor = minor;
+
+ list_add_tail(&master->head, &minor->master_list);
+
+ return master;
+}
+
+struct drm_master *drm_master_get(struct drm_master *master)
+{
+ kref_get(&master->refcount);
+ return master;
+}
+
+static void drm_master_destroy(struct kref *kref)
+{
+ struct drm_master *master = container_of(kref, struct drm_master, refcount);
+ struct drm_magic_entry *pt, *next;
+ struct drm_device *dev = master->minor->dev;
+
+ list_del(&master->head);
+
+ if (dev->driver->master_destroy)
+ dev->driver->master_destroy(dev, master);
+
+ if (master->unique) {
+ drm_free(master->unique, master->unique_size, DRM_MEM_DRIVER);
+ master->unique = NULL;
+ master->unique_len = 0;
+ }
+
+ list_for_each_entry_safe(pt, next, &master->magicfree, head) {
+ list_del(&pt->head);
+ drm_ht_remove_item(&master->magiclist, &pt->hash_item);
+ drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
+ }
+
+ drm_ht_remove(&master->magiclist);
+
+ if (master->lock.hw_lock) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL;
+ master->lock.file_priv = NULL;
+ wake_up_interruptible(&master->lock.lock_queue);
+ }
+
+ drm_free(master, sizeof(*master), DRM_MEM_DRIVER);
+}
+
+void drm_master_put(struct drm_master **master)
+{
+ kref_put(&(*master)->refcount, drm_master_destroy);
+ *master = NULL;
+}
+
+int drm_setmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->minor->master &&
+ file_priv->minor->master != file_priv->master) {
+ mutex_lock(&dev->struct_mutex);
+ file_priv->minor->master = drm_master_get(file_priv->master);
+ mutex_lock(&dev->struct_mutex);
+ }
+
+ return 0;
+}
+
+int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ if (!file_priv->master)
+ return -EINVAL;
+ mutex_lock(&dev->struct_mutex);
+ drm_master_put(&file_priv->minor->master);
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
const struct pci_device_id *ent,
struct drm_driver *driver)
@@ -92,7 +198,6 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
spin_lock_init(&dev->count_lock);
spin_lock_init(&dev->drw_lock);
- spin_lock_init(&dev->lock.spinlock);
init_timer(&dev->timer);
mutex_init(&dev->struct_mutex);
mutex_init(&dev->ctxlist_mutex);
@@ -140,9 +245,6 @@ static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
}
}
- if (dev->driver->load)
- if ((retcode = dev->driver->load(dev, ent->driver_data)))
- goto error_out_unreg;
retcode = drm_ctxbitmap_init(dev);
if (retcode) {
@@ -200,6 +302,7 @@ static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int t
new_minor->device = MKDEV(DRM_MAJOR, minor_id);
new_minor->dev = dev;
new_minor->index = minor_id;
+ INIT_LIST_HEAD(&new_minor->master_list);
idr_replace(&drm_minors_idr, new_minor, minor_id);
@@ -267,8 +370,30 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
goto err_g2;
}
+
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
+ if (ret)
+ goto err_g2;
+ }
+
if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY)))
- goto err_g2;
+ goto err_g3;
+
+ if (dev->driver->load) {
+ ret = dev->driver->load(dev, ent->driver_data);
+ if (ret)
+ goto err_g3;
+ }
+
+ /* setup the grouping for the legacy output */
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ ret = drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group);
+ if (ret)
+ goto err_g3;
+ }
+
+ list_add_tail(&dev->driver_item, &driver->device_list);
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
driver->name, driver->major, driver->minor, driver->patchlevel,
@@ -276,6 +401,8 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
return 0;
+err_g3:
+ drm_put_minor(&dev->primary);
err_g2:
pci_disable_device(pdev);
err_g1:
@@ -297,11 +424,6 @@ int drm_put_dev(struct drm_device * dev)
{
DRM_DEBUG("release primary %s\n", dev->driver->pci_driver.name);
- if (dev->unique) {
- drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
- dev->unique = NULL;
- dev->unique_len = 0;
- }
if (dev->devname) {
drm_free(dev->devname, strlen(dev->devname) + 1,
DRM_MEM_DRIVER);