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authorRodrigo Vivi <rodrigo.vivi@intel.com>2017-11-14 07:43:00 -0800
committerRodrigo Vivi <rodrigo.vivi@intel.com>2017-11-14 07:43:00 -0800
commit176d5325d1a7d088e96cfef898fa7d3a622a6903 (patch)
treef12c24b72202e032114aef576f53deac9f595646 /drivers/gpu/drm/drm_mode_object.c
parent70a84f3c6075031dbf004a1610ca2471f4c528aa (diff)
parentf150891fd9878ef0d9197c4e8451ce67c3bdd014 (diff)
Merge airlied/drm-next into drm-intel-next-queued
Catchup with upstream. Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/drm_mode_object.c')
-rw-r--r--drivers/gpu/drm/drm_mode_object.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c
index 240a05d91a53..ce4d2fb32810 100644
--- a/drivers/gpu/drm/drm_mode_object.c
+++ b/drivers/gpu/drm/drm_mode_object.c
@@ -104,6 +104,25 @@ void drm_mode_object_unregister(struct drm_device *dev,
mutex_unlock(&dev->mode_config.idr_mutex);
}
+/**
+ * drm_lease_required - check types which must be leased to be used
+ * @type: type of object
+ *
+ * Returns whether the provided type of drm_mode_object must
+ * be owned or leased to be used by a process.
+ */
+bool drm_mode_object_lease_required(uint32_t type)
+{
+ switch(type) {
+ case DRM_MODE_OBJECT_CRTC:
+ case DRM_MODE_OBJECT_CONNECTOR:
+ case DRM_MODE_OBJECT_PLANE:
+ return true;
+ default:
+ return false;
+ }
+}
+
struct drm_mode_object *__drm_mode_object_find(struct drm_device *dev,
struct drm_file *file_priv,
uint32_t id, uint32_t type)
@@ -117,6 +136,10 @@ struct drm_mode_object *__drm_mode_object_find(struct drm_device *dev,
if (obj && obj->id != id)
obj = NULL;
+ if (obj && drm_mode_object_lease_required(obj->type) &&
+ !_drm_lease_held(file_priv, obj->id))
+ obj = NULL;
+
if (obj && obj->free_cb) {
if (!kref_get_unless_zero(&obj->refcount))
obj = NULL;
@@ -128,6 +151,7 @@ struct drm_mode_object *__drm_mode_object_find(struct drm_device *dev,
/**
* drm_mode_object_find - look up a drm object with static lifetime
+ * @dev: drm device
* @file_priv: drm file
* @id: id of the mode object
* @type: type of the mode object