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/cirrus/cirrus_drv.h | 4 ++++ drivers/gpu/drm/cirrus/cirrus_main.c | 15 +++++++++++++++ 2 files changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.h b/drivers/gpu/drm/cirrus/cirrus_drv.h index 9b0bb91..2fec34b 100644 --- a/drivers/gpu/drm/cirrus/cirrus_drv.h +++ b/drivers/gpu/drm/cirrus/cirrus_drv.h @@ -193,6 +193,10 @@ int cirrus_device_init(struct cirrus_device *cdev, void cirrus_device_fini(struct cirrus_device *cdev); int cirrus_gem_init_object(struct drm_gem_object *obj); void cirrus_gem_free_object(struct drm_gem_object *obj); +int cirrus_gem_open_object(struct drm_gem_object *obj, + struct drm_file *file_priv); +void cirrus_gem_close_object(struct drm_gem_object *obj, + struct drm_file *file_priv); int cirrus_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev, uint32_t handle, diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c index f130a53..7046c4b 100644 --- a/drivers/gpu/drm/cirrus/cirrus_main.c +++ b/drivers/gpu/drm/cirrus/cirrus_main.c @@ -284,6 +284,21 @@ void cirrus_gem_free_object(struct drm_gem_object *obj) cirrus_bo_unref(&cirrus_bo); }
+int cirrus_gem_open_object(struct drm_gem_object *obj, + struct drm_file *file_priv) +{ + struct cirrus_bo *bo = gem_to_cirrus_bo(obj); + + return drm_vma_node_allow(&bo->bo.vma_node, file_priv->filp); +} + +void cirrus_gem_close_object(struct drm_gem_object *obj, + struct drm_file *file_priv) +{ + struct cirrus_bo *bo = gem_to_cirrus_bo(obj); + + drm_vma_node_revoke(&bo->bo.vma_node, file_priv->filp); +}
static inline u64 cirrus_bo_mmap_offset(struct cirrus_bo *bo) {