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received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: QquWOpGJM0iOt5ptzRnSevgGeVDzMEFV08e9CbXlGGHLXcgJawobSCjlogSKOIbTPN7JsVEw67K+A3VuZ5DTKfuCsSvWEHAvcPDDmosDdgSG5+fSu7ySFjYCqF24LWDcN0jAH7viikcKG9+FUN2rL8+CPFZ8fTOm94qjMSTOq2C/PdTYMSlUImWl0T4u84awae2gNb2rdJ2ijtFYJw3A2lhnZSLj8nuSTXrI3y2BsBQlThx6fQkMLKsKAqq2xP3YRNB0xMKjsqcZVxh1/+c2AZ+4IA1WM5JreOuji2jblgfbt8J9Gh71/zeiHTkviR0s spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6a452ab9-f452-4897-baf6-08d669805e13 X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Dec 2018 09:15:37.8558 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM3PR08MB0183 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Signed-off-by: James (Qian) Wang --- drivers/gpu/drm/drm_atomic.c | 45 +++++++++++++++++++++++++++++++++++- include/drm/drm_atomic.h | 6 +++++ 2 files changed, 50 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 9ac26437051b..6ff29f3862fc 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -764,6 +764,50 @@ drm_atomic_get_private_obj_state(struct drm_atomic_sta= te *state, } EXPORT_SYMBOL(drm_atomic_get_private_obj_state); =20 +/** + * 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 privat= e_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 =3D 0; i < state->num_private_objs; i++) + if (obj =3D=3D 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 privat= e_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 =3D 0; i < state->num_private_objs; i++) + if (obj =3D=3D 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 @@ -1203,4 +1247,3 @@ int drm_atomic_debugfs_init(struct drm_minor *minor) minor->debugfs_root, minor); } #endif - diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h index f9b35834c45d..beb7b7fb6067 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -408,6 +408,12 @@ void drm_atomic_private_obj_fini(struct drm_private_ob= j *obj); struct drm_private_state * __must_check drm_atomic_get_private_obj_state(struct drm_atomic_state *state, struct drm_private_obj *obj); +struct drm_private_state * +drm_atomic_get_old_private_obj_state(struct drm_atomic_state *state, + struct drm_private_obj *obj); +struct drm_private_state * +drm_atomic_get_new_private_obj_state(struct drm_atomic_state *state, + struct drm_private_obj *obj); =20 /** * drm_atomic_get_existing_crtc_state - get crtc state, if it exists --=20 2.17.1