1 /* $NetBSD: drm_writeback.c,v 1.1 2021/12/19 10:46:02 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2020 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: drm_writeback.c,v 1.1 2021/12/19 10:46:02 riastradh Exp $"); 31 32 #include <drm/drm_writeback.h> 33 34 struct drm_writeback_connector * 35 drm_connector_to_writeback(struct drm_connector *connector) 36 { 37 38 return container_of(connector, struct drm_writeback_connector, base); 39 } 40 41 struct dma_fence * 42 drm_writeback_get_out_fence(struct drm_writeback_connector *wbconn) 43 { 44 panic("writeback connectors not implemented"); 45 return NULL; 46 } 47 48 int 49 drm_writeback_prepare_job(struct drm_writeback_job *wbj) 50 { 51 panic("writeback connectors not implemented"); 52 return -ENXIO; 53 } 54 55 void 56 drm_writeback_cleanup_job(struct drm_writeback_job *job) 57 { 58 panic("writeback connectors not implemented"); 59 } 60 61 int 62 drm_writeback_set_fb(struct drm_connector_state *state, 63 struct drm_framebuffer *fb) 64 { 65 panic("writeback connectors not implemented"); 66 return -ENXIO; 67 } 68