diff options
| author | james qian wang (Arm Technology China) <james.qian.wang@arm.com> | 2019-01-22 14:05:41 +0300 |
|---|---|---|
| committer | Liviu Dudau <Liviu.Dudau@arm.com> | 2019-04-29 14:35:56 +0300 |
| commit | 9801a7eadf4cc29cdc90583a49f12decbb832ced (patch) | |
| tree | b3a910508da90107fec15f80909faa668fbc03a8 /drivers/gpu/drm/drm_atomic.c | |
| parent | 7c13e5cc2391950541f41fc9ab0336aae77c7f63 (diff) | |
| download | linux-9801a7eadf4cc29cdc90583a49f12decbb832ced.tar.xz | |
drm: Add drm_atomic_get_old/new_private_obj_state
This pair of functions return the old/new private object state for the
given private_obj, or NULL if the private_obj is not part of the global
atomic state.
Reviewed-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 5eb40130fafb..f4924cb7f495 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -798,6 +798,50 @@ drm_atomic_get_private_obj_state(struct drm_atomic_state *state, EXPORT_SYMBOL(drm_atomic_get_private_obj_state); /** + * drm_atomic_get_old_private_obj_state + * @state: global atomic state object + * @obj: private_obj to grab + * + * This function returns the old private object state for the given private_obj, + * or NULL if the private_obj is not part of the global atomic state. + */ +struct drm_private_state * +drm_atomic_get_old_private_obj_state(struct drm_atomic_state *state, + struct drm_private_obj *obj) +{ + int i; + + for (i = 0; i < state->num_private_objs; i++) + if (obj == state->private_objs[i].ptr) + return state->private_objs[i].old_state; + + return NULL; +} +EXPORT_SYMBOL(drm_atomic_get_old_private_obj_state); + +/** + * drm_atomic_get_new_private_obj_state + * @state: global atomic state object + * @obj: private_obj to grab + * + * This function returns the new private object state for the given private_obj, + * or NULL if the private_obj is not part of the global atomic state. + */ +struct drm_private_state * +drm_atomic_get_new_private_obj_state(struct drm_atomic_state *state, + struct drm_private_obj *obj) +{ + int i; + + for (i = 0; i < state->num_private_objs; i++) + if (obj == state->private_objs[i].ptr) + return state->private_objs[i].new_state; + + return NULL; +} +EXPORT_SYMBOL(drm_atomic_get_new_private_obj_state); + +/** * drm_atomic_get_connector_state - get connector state * @state: global atomic state object * @connector: connector to get state object for @@ -1236,4 +1280,3 @@ int drm_atomic_debugfs_init(struct drm_minor *minor) minor->debugfs_root, minor); } #endif - |