linux-kernel - [PATCH v12 09/11] drm/gem: Export drm_gem

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Message-Id: <20230305221011.1404672-10-dmitry.osipenko@collabora.com>
Date:   Mon,  6 Mar 2023 01:10:09 +0300
From:   Dmitry Osipenko <dmitry.osipenko@...labora.com>
To:     David Airlie <airlied@...il.com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Gurchetan Singh <gurchetansingh@...omium.org>,
        Chia-I Wu <olvaffe@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Daniel Almeida <daniel.almeida@...labora.com>,
        Gustavo Padovan <gustavo.padovan@...labora.com>,
        Daniel Stone <daniel@...ishbar.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Qiang Yu <yuq825@...il.com>,
        Steven Price <steven.price@....com>,
        Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
        Rob Herring <robh@...nel.org>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com, virtualization@...ts.linux-foundation.org,
        intel-gfx@...ts.freedesktop.org
Subject: [PATCH v12 09/11] drm/gem: Export drm_gem_pin/unpin()

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@...labora.com>
---
 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