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drm_writeback.h revision 1.6 
      1 /*	$NetBSD: drm_writeback.h,v 1.6 2021/12/19 10:46:03 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2018 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Taylor R. Campbell.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef	_DRM_DRM_WRITEBACK_H_
     33 #define	_DRM_DRM_WRITEBACK_H_
     34 
     35 #include <drm/drm_connector.h>
     36 
     37 struct dma_fence;
     38 struct drm_connector;
     39 struct drm_connector_state;
     40 struct drm_framebuffer;
     41 struct drm_writeback_connector;
     42 
     43 struct drm_writeback_connector {
     44 	struct drm_connector	base;
     45 };
     46 
     47 struct drm_writeback_job {
     48 	struct drm_framebuffer	*fb;
     49 	struct dma_fence	*out_fence;
     50 };
     51 
     52 struct drm_writeback_connector *
     53 	drm_connector_to_writeback(struct drm_connector *);
     54 struct dma_fence *
     55 	drm_writeback_get_out_fence(struct drm_writeback_connector *);
     56 int	drm_writeback_prepare_job(struct drm_writeback_job *);
     57 void	drm_writeback_cleanup_job(struct drm_writeback_job *);
     58 int	drm_writeback_set_fb(struct drm_connector_state *,
     59 	    struct drm_framebuffer *);
     60 
     61 #endif	/* _DRM_DRM_WRITEBACK_H_ */
     62