[PATCH v12 09/11] drm/gem: Export drm_gem_pin/unpin()

[Dmitry Osipenko]

Export drm_gem_un/pin() functions. They will be used by VirtIO-GPU driver
for pinning of an active framebuffer, preventing it from swapping out by
memory shrinker.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/drm_gem.c      | 2 ++
 drivers/gpu/drm/drm_internal.h | 2 --
 include/drm/drm_gem.h          | 3 +++
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 3da34b121c93..6492c47b7142 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -1153,12 +1153,14 @@ int drm_gem_pin(struct drm_gem_object *obj)
 	else
 		return 0;
 }
+EXPORT_SYMBOL(drm_gem_pin);
 
 void drm_gem_unpin(struct drm_gem_object *obj)
 {
 	if (obj->funcs->unpin)
 		obj->funcs->unpin(obj);
 }
+EXPORT_SYMBOL(drm_gem_unpin);
 
 int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
index d7e023bbb0d5..55d0ee7475f7 100644
--- a/drivers/gpu/drm/drm_internal.h
+++ b/drivers/gpu/drm/drm_internal.h
@@ -173,8 +173,6 @@ 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_vmap(struct drm_gem_object *obj, struct iosys_map *map);
 void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
 
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 7bd8e2bbbb36..f7703cb66569 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -493,4 +493,7 @@ unsigned long drm_gem_lru_scan(struct drm_gem_lru *lru,
 
 int drm_gem_evict(struct drm_gem_object *obj);
 
+int drm_gem_pin(struct drm_gem_object *obj);
+void drm_gem_unpin(struct drm_gem_object *obj);
+
 #endif /* __DRM_GEM_H__ */
-- 
2.39.2