Merge drm/drm-next into drm-intel-next-queued

Generally catch up with 5.0-rc1, and specifically get the changes:

96d4f267e40f ("Remove 'type' argument from access_ok() function")
0b2c8f8b6b0c ("i915: fix missing user_access_end() in page fault exception case")
594cc251fdd0 ("make 'user_access_begin()' do 'access_ok()'")

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

1 files changed, 131 insertions, 50 deletions

diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 3583b98a1718..c95727425284 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -38,6 +38,121 @@
 
 #include <drm/drm_vma_manager.h>
 
+struct drm_gem_object;
+
+/**
+ * struct drm_gem_object_funcs - GEM object functions
+ */
+struct drm_gem_object_funcs {
+	/**
+	 * @free:
+	 *
+	 * Deconstructor for drm_gem_objects.
+	 *
+	 * This callback is mandatory.
+	 */
+	void (*free)(struct drm_gem_object *obj);
+
+	/**
+	 * @open:
+	 *
+	 * Called upon GEM handle creation.
+	 *
+	 * This callback is optional.
+	 */
+	int (*open)(struct drm_gem_object *obj, struct drm_file *file);
+
+	/**
+	 * @close:
+	 *
+	 * Called upon GEM handle release.
+	 *
+	 * This callback is optional.
+	 */
+	void (*close)(struct drm_gem_object *obj, struct drm_file *file);
+
+	/**
+	 * @print_info:
+	 *
+	 * If driver subclasses struct &drm_gem_object, it can implement this
+	 * optional hook for printing additional driver specific info.
+	 *
+	 * drm_printf_indent() should be used in the callback passing it the
+	 * indent argument.
+	 *
+	 * This callback is called from drm_gem_print_info().
+	 *
+	 * This callback is optional.
+	 */
+	void (*print_info)(struct drm_printer *p, unsigned int indent,
+			   const struct drm_gem_object *obj);
+
+	/**
+	 * @export:
+	 *
+	 * Export backing buffer as a &dma_buf.
+	 * If this is not set drm_gem_prime_export() is used.
+	 *
+	 * This callback is optional.
+	 */
+	struct dma_buf *(*export)(struct drm_gem_object *obj, int flags);
+
+	/**
+	 * @pin:
+	 *
+	 * Pin backing buffer in memory.
+	 *
+	 * This callback is optional.
+	 */
+	int (*pin)(struct drm_gem_object *obj);
+
+	/**
+	 * @unpin:
+	 *
+	 * Unpin backing buffer.
+	 *
+	 * This callback is optional.
+	 */
+	void (*unpin)(struct drm_gem_object *obj);
+
+	/**
+	 * @get_sg_table:
+	 *
+	 * Returns a Scatter-Gather table representation of the buffer.
+	 * Used when exporting a buffer.
+	 *
+	 * This callback is mandatory if buffer export is supported.
+	 */
+	struct sg_table *(*get_sg_table)(struct drm_gem_object *obj);
+
+	/**
+	 * @vmap:
+	 *
+	 * Returns a virtual address for the buffer.
+	 *
+	 * This callback is optional.
+	 */
+	void *(*vmap)(struct drm_gem_object *obj);
+
+	/**
+	 * @vunmap:
+	 *
+	 * Releases the the address previously returned by @vmap.
+	 *
+	 * This callback is optional.
+	 */
+	void (*vunmap)(struct drm_gem_object *obj, void *vaddr);
+
+	/**
+	 * @vm_ops:
+	 *
+	 * Virtual memory operations used with mmap.
+	 *
+	 * This is optional but necessary for mmap support.
+	 */
+	const struct vm_operations_struct *vm_ops;
+};
+
 /**
  * struct drm_gem_object - GEM buffer object
  *
@@ -146,6 +261,17 @@ struct drm_gem_object {
 	 * simply leave it as NULL.
 	 */
 	struct dma_buf_attachment *import_attach;
+
+	/**
+	 * @funcs:
+	 *
+	 * Optional GEM object functions. If this is set, it will be used instead of the
+	 * corresponding &drm_driver GEM callbacks.
+	 *
+	 * New drivers should use this.
+	 *
+	 */
+	const struct drm_gem_object_funcs *funcs;
 };
 
 /**
@@ -222,56 +348,6 @@ __drm_gem_object_put(struct drm_gem_object *obj)
 void drm_gem_object_put_unlocked(struct drm_gem_object *obj);
 void drm_gem_object_put(struct drm_gem_object *obj);
 
-/**
- * drm_gem_object_reference - acquire a GEM buffer object reference
- * @obj: GEM buffer object
- *
- * This is a compatibility alias for drm_gem_object_get() and should not be
- * used by new code.
- */
-static inline void drm_gem_object_reference(struct drm_gem_object *obj)
-{
-	drm_gem_object_get(obj);
-}
-
-/**
- * __drm_gem_object_unreference - raw function to release a GEM buffer object
- *                                reference
- * @obj: GEM buffer object
- *
- * This is a compatibility alias for __drm_gem_object_put() and should not be
- * used by new code.
- */
-static inline void __drm_gem_object_unreference(struct drm_gem_object *obj)
-{
-	__drm_gem_object_put(obj);
-}
-
-/**
- * drm_gem_object_unreference_unlocked - release a GEM buffer object reference
- * @obj: GEM buffer object
- *
- * This is a compatibility alias for drm_gem_object_put_unlocked() and should
- * not be used by new code.
- */
-static inline void
-drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
-{
-	drm_gem_object_put_unlocked(obj);
-}
-
-/**
- * drm_gem_object_unreference - release a GEM buffer object reference
- * @obj: GEM buffer object
- *
- * This is a compatibility alias for drm_gem_object_put() and should not be
- * used by new code.
- */
-static inline void drm_gem_object_unreference(struct drm_gem_object *obj)
-{
-	drm_gem_object_put(obj);
-}
-
 int drm_gem_handle_create(struct drm_file *file_priv,
 			  struct drm_gem_object *obj,
 			  u32 *handlep);
@@ -293,4 +369,9 @@ int drm_gem_dumb_destroy(struct drm_file *file,
 			 struct drm_device *dev,
 			 uint32_t handle);
 
+int drm_gem_pin(struct drm_gem_object *obj);
+void drm_gem_unpin(struct drm_gem_object *obj);
+void *drm_gem_vmap(struct drm_gem_object *obj);
+void drm_gem_vunmap(struct drm_gem_object *obj, void *vaddr);
+
 #endif /* __DRM_GEM_H__ */