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authorNoralf Trønnes <noralf@tronnes.org>2018-11-10 15:56:43 +0100
committerNoralf Trønnes <noralf@tronnes.org>2018-11-20 14:54:15 +0100
commitf001488112c43fea6b7558e15f71d64ee7495286 (patch)
tree35bf3c91043118a17d6bdb0e6c492e6a4903bafc
parentf577f7eac5ad19eb1455acd2ec22aeb5f6a40ba0 (diff)
drm/driver: Add defaults for .gem_prime_export/import callbacks
The majority of drivers use drm_gem_prime_export() and drm_gem_prime_import() for these callbacks so let's make them the default. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181110145647.17580-2-noralf@tronnes.org
-rw-r--r--Documentation/gpu/todo.rst7
-rw-r--r--drivers/gpu/drm/drm_prime.c10
-rw-r--r--include/drm/drm_drv.h4
3 files changed, 19 insertions, 2 deletions
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 5c9d86c962af..abc31956ef15 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -234,6 +234,13 @@ efficient.
Contact: Daniel Vetter
+Defaults for .gem_prime_import and export
+-----------------------------------------
+
+Most drivers don't need to set drm_driver->gem_prime_import and
+->gem_prime_export now that drm_gem_prime_import() and drm_gem_prime_export()
+are the default.
+
Core refactorings
=================
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 8d54d51a6b6b..ba6c7e02a2ae 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -529,7 +529,10 @@ static struct dma_buf *export_and_register_object(struct drm_device *dev,
return dmabuf;
}
- dmabuf = dev->driver->gem_prime_export(dev, obj, flags);
+ if (dev->driver->gem_prime_export)
+ dmabuf = dev->driver->gem_prime_export(dev, obj, flags);
+ else
+ dmabuf = drm_gem_prime_export(dev, obj, flags);
if (IS_ERR(dmabuf)) {
/* normally the created dma-buf takes ownership of the ref,
* but if that fails then drop the ref
@@ -762,7 +765,10 @@ int drm_gem_prime_fd_to_handle(struct drm_device *dev,
/* never seen this one, need to import */
mutex_lock(&dev->object_name_lock);
- obj = dev->driver->gem_prime_import(dev, dma_buf);
+ if (dev->driver->gem_prime_import)
+ obj = dev->driver->gem_prime_import(dev, dma_buf);
+ else
+ obj = drm_gem_prime_import(dev, dma_buf);
if (IS_ERR(obj)) {
ret = PTR_ERR(obj);
goto out_unlock;
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 3199ef70c007..dbb2f6ad184a 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -471,6 +471,8 @@ struct drm_driver {
* @gem_prime_export:
*
* export GEM -> dmabuf
+ *
+ * This defaults to drm_gem_prime_export() if not set.
*/
struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
struct drm_gem_object *obj, int flags);
@@ -478,6 +480,8 @@ struct drm_driver {
* @gem_prime_import:
*
* import dmabuf -> GEM
+ *
+ * This defaults to drm_gem_prime_import() if not set.
*/
struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
struct dma_buf *dma_buf);