Correctly allow and revoke buffer access on each open/close via the new VMA offset manager.
Cc: Dave Airlie airlied@redhat.com Signed-off-by: David Herrmann dh.herrmann@gmail.com --- drivers/gpu/drm/mgag200/mgag200_drv.c | 2 ++ drivers/gpu/drm/mgag200/mgag200_drv.h | 4 ++++ drivers/gpu/drm/mgag200/mgag200_main.c | 15 +++++++++++++++ 3 files changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c index 122b571..d26a244 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.c +++ b/drivers/gpu/drm/mgag200/mgag200_drv.c @@ -102,6 +102,8 @@ static struct drm_driver driver = {
.gem_init_object = mgag200_gem_init_object, .gem_free_object = mgag200_gem_free_object, + .gem_open_object = mgag200_gem_open_object, + .gem_close_object = mgag200_gem_close_object, .dumb_create = mgag200_dumb_create, .dumb_map_offset = mgag200_dumb_mmap_offset, .dumb_destroy = mgag200_dumb_destroy, diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index 12e2499..4e674be 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -268,6 +268,10 @@ int mgag200_dumb_destroy(struct drm_file *file, struct drm_device *dev, uint32_t handle); void mgag200_gem_free_object(struct drm_gem_object *obj); +int mgag200_gem_open_object(struct drm_gem_object *obj, + struct drm_file *file_priv); +void mgag200_gem_close_object(struct drm_gem_object *obj, + struct drm_file *file_priv); int mgag200_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev, diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c index 1a75ea3..26bee28 100644 --- a/drivers/gpu/drm/mgag200/mgag200_main.c +++ b/drivers/gpu/drm/mgag200/mgag200_main.c @@ -346,6 +346,21 @@ void mgag200_gem_free_object(struct drm_gem_object *obj) mgag200_bo_unref(&mgag200_bo); }
+int mgag200_gem_open_object(struct drm_gem_object *obj, + struct drm_file *file_priv) +{ + struct mgag200_bo *bo = gem_to_mga_bo(obj); + + return drm_vma_node_allow(&bo->bo.vma_node, file_priv->filp); +} + +void mgag200_gem_close_object(struct drm_gem_object *obj, + struct drm_file *file_priv) +{ + struct mgag200_bo *bo = gem_to_mga_bo(obj); + + drm_vma_node_revoke(&bo->bo.vma_node, file_priv->filp); +}
static inline u64 mgag200_bo_mmap_offset(struct mgag200_bo *bo) {