1 1.4 skrll /* $NetBSD: drm_gem_cma_helper.h,v 1.4 2022/07/02 04:37:15 skrll Exp $ */ 2 1.1 riastrad 3 1.3 riastrad /*- 4 1.3 riastrad * Copyright (c) 2022 The NetBSD Foundation, Inc. 5 1.3 riastrad * All rights reserved. 6 1.3 riastrad * 7 1.3 riastrad * Redistribution and use in source and binary forms, with or without 8 1.3 riastrad * modification, are permitted provided that the following conditions 9 1.3 riastrad * are met: 10 1.3 riastrad * 1. Redistributions of source code must retain the above copyright 11 1.3 riastrad * notice, this list of conditions and the following disclaimer. 12 1.3 riastrad * 2. Redistributions in binary form must reproduce the above copyright 13 1.3 riastrad * notice, this list of conditions and the following disclaimer in the 14 1.3 riastrad * documentation and/or other materials provided with the distribution. 15 1.3 riastrad * 16 1.3 riastrad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 1.3 riastrad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 1.3 riastrad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 1.3 riastrad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 1.3 riastrad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 1.3 riastrad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 1.3 riastrad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 1.3 riastrad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 1.3 riastrad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 1.3 riastrad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.3 riastrad * POSSIBILITY OF SUCH DAMAGE. 27 1.3 riastrad */ 28 1.1 riastrad 29 1.3 riastrad #ifndef _DRM_DRM_GEM_CMA_HELPER_H_ 30 1.3 riastrad #define _DRM_DRM_GEM_CMA_HELPER_H_ 31 1.3 riastrad 32 1.3 riastrad #include <sys/types.h> 33 1.1 riastrad 34 1.3 riastrad #include <sys/bus.h> 35 1.2 riastrad #include <sys/vmem.h> 36 1.2 riastrad 37 1.3 riastrad #include <uvm/uvm_pager.h> 38 1.3 riastrad 39 1.3 riastrad #include <drm/drm_gem.h> 40 1.3 riastrad 41 1.4 skrll struct dma_buf_attachment; 42 1.3 riastrad struct drm_device; 43 1.3 riastrad struct drm_file; 44 1.3 riastrad struct drm_gem_cma_object; 45 1.3 riastrad struct drm_gem_object; 46 1.1 riastrad struct drm_mode_create_dumb; 47 1.3 riastrad struct sg_table; 48 1.3 riastrad struct vmem; 49 1.1 riastrad 50 1.1 riastrad struct drm_gem_cma_object { 51 1.1 riastrad struct drm_gem_object base; 52 1.3 riastrad bus_dmamap_t dmamap; 53 1.1 riastrad bus_dma_segment_t dmasegs[1]; 54 1.1 riastrad bus_size_t dmasize; 55 1.3 riastrad bus_dma_tag_t dmat; 56 1.1 riastrad struct sg_table *sgt; 57 1.1 riastrad void *vaddr; 58 1.3 riastrad vmem_addr_t vmem_addr; 59 1.3 riastrad struct vmem *vmem_pool; 60 1.1 riastrad }; 61 1.1 riastrad 62 1.3 riastrad #define to_drm_gem_cma_obj(GEM_OBJ) \ 63 1.3 riastrad container_of((GEM_OBJ), struct drm_gem_cma_object, base) 64 1.1 riastrad 65 1.3 riastrad extern const struct uvm_pagerops drm_gem_cma_uvm_ops; 66 1.1 riastrad 67 1.3 riastrad struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *, size_t); 68 1.3 riastrad int drm_gem_cma_dumb_create(struct drm_file *, struct drm_device *, 69 1.3 riastrad struct drm_mode_create_dumb *); 70 1.3 riastrad void drm_gem_cma_free_object(struct drm_gem_object *); 71 1.3 riastrad struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *); 72 1.3 riastrad struct drm_gem_object *drm_gem_cma_prime_import_sg_table(struct drm_device *, 73 1.3 riastrad struct dma_buf_attachment *, struct sg_table *); 74 1.3 riastrad void *drm_gem_cma_prime_vmap(struct drm_gem_object *); 75 1.3 riastrad void drm_gem_cma_prime_vunmap(struct drm_gem_object *, void *); 76 1.1 riastrad 77 1.3 riastrad #endif /* _DRM_DRM_GEM_CMA_HELPER_H_ */ 78
Indexes created Thu Sep 25 16:09:42 GMT 2025