diff options
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 7c5b5f78f1f..186d62eb063 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -129,7 +129,7 @@ drm_gem_destroy(struct drm_device *dev) } /** - * Initialize an already allocate GEM object of the specified size with + * Initialize an already allocated GEM object of the specified size with * shmfs backing store. */ int drm_gem_object_init(struct drm_device *dev, @@ -151,6 +151,27 @@ int drm_gem_object_init(struct drm_device *dev, EXPORT_SYMBOL(drm_gem_object_init); /** + * Initialize an already allocated GEM object of the specified size with + * no GEM provided backing store. Instead the caller is responsible for + * backing the object and handling it. + */ +int drm_gem_private_object_init(struct drm_device *dev, + struct drm_gem_object *obj, size_t size) +{ + BUG_ON((size & (PAGE_SIZE - 1)) != 0); + + obj->dev = dev; + obj->filp = NULL; + + kref_init(&obj->refcount); + atomic_set(&obj->handle_count, 0); + obj->size = size; + + return 0; +} +EXPORT_SYMBOL(drm_gem_private_object_init); + +/** * Allocate a GEM object of the specified size with shmfs backing store */ struct drm_gem_object * @@ -444,7 +465,8 @@ drm_gem_release(struct drm_device *dev, struct drm_file *file_private) void drm_gem_object_release(struct drm_gem_object *obj) { - fput(obj->filp); + if (obj->filp) + fput(obj->filp); } EXPORT_SYMBOL(drm_gem_object_release); |