Merge tag 'drm-misc-next-2018-11-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v4.21, part 1:

UAPI Changes:
- Add syncobj timeline support to drm.

Cross-subsystem Changes:
- Remove shared fence staging in dma-buf's fence object, and allow
  reserving more than 1 fence and add more paranoia when debugging.
- Constify infoframe functions in video/hdmi.

Core Changes:
- Add vkms todo, and a lot of assorted doc fixes.
- Drop transitional helpers and convert drivers to use drm_atomic_helper_shutdown().
- Move atomic state helper functions to drm_atomic_state_helper.[ch]
- Refactor drm selftests, and add new tests.
- DP MST atomic state cleanups.
- Drop EXPORT_SYMBOL from drm leases.
- Lease cleanups and fixes.
- Create render node for vgem.

Driver Changes:
- Fix build failure in imx without fbdev emulation.
- Add rotation quirk for GPD win2 panel.
- Add support for various CDTech panels, Banana Pi Panel, DLC1010GIG,
  Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA,
  Himax HX8357D, simulated RTSM AEMv8.
- Add dw_hdmi support to rockchip driver.
- Fix YUV support in vc4.
- Fix resource id handling in virtio.
- Make rockchip use dw-mipi-dsi bridge driver, and add dual dsi support.
- Advertise that tinydrm only supports DRM_FORMAT_MOD_LINEAR.
- Convert many drivers to use atomic helpers, and drm_fbdev_generic_setup().
- Add Mali linear tiled formats, and enable them in the Mali-DP driver.
- Add support for H6 DE3 mixer 0, DW HDMI, HDMI PHY and TCON TOP.
- Assorted driver cleanups and fixes.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/be7ebd91-edd9-8fa4-4286-1c57e3165113@linux.intel.com

1 files changed, 40 insertions, 35 deletions

diff --git a/include/drm/drm_syncobj.h b/include/drm/drm_syncobj.h
index 425432b85a87..29244cbcd05e 100644
--- a/include/drm/drm_syncobj.h
+++ b/include/drm/drm_syncobj.h
@@ -30,10 +30,15 @@
 
 struct drm_syncobj_cb;
 
+enum drm_syncobj_type {
+	DRM_SYNCOBJ_TYPE_BINARY,
+	DRM_SYNCOBJ_TYPE_TIMELINE
+};
+
 /**
  * struct drm_syncobj - sync object.
  *
- * This structure defines a generic sync object which wraps a &dma_fence.
+ * This structure defines a generic sync object which is timeline based.
  */
 struct drm_syncobj {
 	/**
@@ -41,21 +46,42 @@ struct drm_syncobj {
 	 */
 	struct kref refcount;
 	/**
-	 * @fence:
-	 * NULL or a pointer to the fence bound to this object.
-	 *
-	 * This field should not be used directly. Use drm_syncobj_fence_get()
-	 * and drm_syncobj_replace_fence() instead.
+	 * @type: indicate syncobj type
+	 */
+	enum drm_syncobj_type type;
+	/**
+	 * @wq: wait signal operation work queue
+	 */
+	wait_queue_head_t	wq;
+	/**
+	 * @timeline_context: fence context used by timeline
 	 */
-	struct dma_fence __rcu *fence;
+	u64 timeline_context;
 	/**
-	 * @cb_list: List of callbacks to call when the &fence gets replaced.
+	 * @timeline: syncobj timeline value, which indicates point is signaled.
 	 */
+	u64 timeline;
+	/**
+	 * @signal_point: which indicates the latest signaler point.
+	 */
+	u64 signal_point;
+	/**
+	 * @signal_pt_list: signaler point list.
+	 */
+	struct list_head signal_pt_list;
+
+	/**
+         * @cb_list: List of callbacks to call when the &fence gets replaced.
+         */
 	struct list_head cb_list;
 	/**
-	 * @lock: Protects &cb_list and write-locks &fence.
+	 * @pt_lock: Protects pt list.
 	 */
-	spinlock_t lock;
+	spinlock_t pt_lock;
+	/**
+	 * @cb_mutex: Protects syncobj cb list.
+	 */
+	struct mutex cb_mutex;
 	/**
 	 * @file: A file backing for this syncobj.
 	 */
@@ -68,7 +94,7 @@ typedef void (*drm_syncobj_func_t)(struct drm_syncobj *syncobj,
 /**
  * struct drm_syncobj_cb - callback for drm_syncobj_add_callback
  * @node: used by drm_syncob_add_callback to append this struct to
- *	  &drm_syncobj.cb_list
+ *       &drm_syncobj.cb_list
  * @func: drm_syncobj_func_t to call
  *
  * This struct will be initialized by drm_syncobj_add_callback, additional
@@ -106,35 +132,12 @@ drm_syncobj_put(struct drm_syncobj *obj)
 	kref_put(&obj->refcount, drm_syncobj_free);
 }
 
-/**
- * drm_syncobj_fence_get - get a reference to a fence in a sync object
- * @syncobj: sync object.
- *
- * This acquires additional reference to &drm_syncobj.fence contained in @obj,
- * if not NULL. It is illegal to call this without already holding a reference.
- * No locks required.
- *
- * Returns:
- * Either the fence of @obj or NULL if there's none.
- */
-static inline struct dma_fence *
-drm_syncobj_fence_get(struct drm_syncobj *syncobj)
-{
-	struct dma_fence *fence;
-
-	rcu_read_lock();
-	fence = dma_fence_get_rcu_safe(&syncobj->fence);
-	rcu_read_unlock();
-
-	return fence;
-}
-
 struct drm_syncobj *drm_syncobj_find(struct drm_file *file_private,
 				     u32 handle);
 void drm_syncobj_replace_fence(struct drm_syncobj *syncobj, u64 point,
 			       struct dma_fence *fence);
 int drm_syncobj_find_fence(struct drm_file *file_private,
-			   u32 handle, u64 point,
+			   u32 handle, u64 point, u64 flags,
 			   struct dma_fence **fence);
 void drm_syncobj_free(struct kref *kref);
 int drm_syncobj_create(struct drm_syncobj **out_syncobj, uint32_t flags,
@@ -142,5 +145,7 @@ int drm_syncobj_create(struct drm_syncobj **out_syncobj, uint32_t flags,
 int drm_syncobj_get_handle(struct drm_file *file_private,
 			   struct drm_syncobj *syncobj, u32 *handle);
 int drm_syncobj_get_fd(struct drm_syncobj *syncobj, int *p_fd);
+int drm_syncobj_search_fence(struct drm_syncobj *syncobj, u64 point, u64 flags,
+			     struct dma_fence **fence);
 
 #endif