drm/gem: Add _unlocked postfix to drm_gem_pin/unpin()

Make clear that drm_gem_pin/unpin() functions take reservation lock by
adding _unlocked postfix to the function names.

Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>

drivers/gpu/drm/drm_gem.c

@@ -1146,7 +1146,7 @@ void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
 		obj->funcs->print_info(p, indent, obj);
 }
 
-int drm_gem_pin(struct drm_gem_object *obj)
+int drm_gem_pin_unlocked(struct drm_gem_object *obj)
 {
 	if (obj->funcs->pin)
 		return obj->funcs->pin(obj);
@@ -1154,7 +1154,7 @@ int drm_gem_pin(struct drm_gem_object *obj)
 	return 0;
 }
 
-void drm_gem_unpin(struct drm_gem_object *obj)
+void drm_gem_unpin_unlocked(struct drm_gem_object *obj)
 {
 	if (obj->funcs->unpin)
 		obj->funcs->unpin(obj);

drivers/gpu/drm/drm_internal.h

@@ -173,8 +173,8 @@ void drm_gem_release(struct drm_device *dev, struct drm_file *file_private);
 void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
 			const struct drm_gem_object *obj);
 
-int drm_gem_pin(struct drm_gem_object *obj);
-void drm_gem_unpin(struct drm_gem_object *obj);
+int drm_gem_pin_unlocked(struct drm_gem_object *obj);
+void drm_gem_unpin_unlocked(struct drm_gem_object *obj);
 int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map);
 void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
 

drivers/gpu/drm/drm_prime.c

@@ -583,7 +583,7 @@ int drm_gem_map_attach(struct dma_buf *dma_buf,
 	if (!obj->funcs->get_sg_table)
 		return -ENOSYS;
 
-	return drm_gem_pin(obj);
+	return drm_gem_pin_unlocked(obj);
 }
 EXPORT_SYMBOL(drm_gem_map_attach);
 
@@ -601,7 +601,7 @@ void drm_gem_map_detach(struct dma_buf *dma_buf,
 {
 	struct drm_gem_object *obj = dma_buf->priv;
 
-	drm_gem_unpin(obj);
+	drm_gem_unpin_unlocked(obj);
 }
 EXPORT_SYMBOL(drm_gem_map_detach);