1 /* $NetBSD: qxl_object.h,v 1.2 2018/08/27 04:58:35 riastradh Exp $ */ 2 3 /* 4 * Copyright 2013 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Dave Airlie 25 * Alon Levy 26 */ 27 #ifndef QXL_OBJECT_H 28 #define QXL_OBJECT_H 29 30 #include "qxl_drv.h" 31 32 static inline int qxl_bo_reserve(struct qxl_bo *bo, bool no_wait) 33 { 34 int r; 35 36 r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL); 37 if (unlikely(r != 0)) { 38 if (r != -ERESTARTSYS) { 39 struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private; 40 dev_err(qdev->dev, "%p reserve failed\n", bo); 41 } 42 return r; 43 } 44 return 0; 45 } 46 47 static inline void qxl_bo_unreserve(struct qxl_bo *bo) 48 { 49 ttm_bo_unreserve(&bo->tbo); 50 } 51 52 static inline u64 qxl_bo_gpu_offset(struct qxl_bo *bo) 53 { 54 return bo->tbo.offset; 55 } 56 57 static inline unsigned long qxl_bo_size(struct qxl_bo *bo) 58 { 59 return bo->tbo.num_pages << PAGE_SHIFT; 60 } 61 62 static inline u64 qxl_bo_mmap_offset(struct qxl_bo *bo) 63 { 64 return drm_vma_node_offset_addr(&bo->tbo.vma_node); 65 } 66 67 static inline int qxl_bo_wait(struct qxl_bo *bo, u32 *mem_type, 68 bool no_wait) 69 { 70 int r; 71 72 r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL); 73 if (unlikely(r != 0)) { 74 if (r != -ERESTARTSYS) { 75 struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private; 76 dev_err(qdev->dev, "%p reserve failed for wait\n", 77 bo); 78 } 79 return r; 80 } 81 if (mem_type) 82 *mem_type = bo->tbo.mem.mem_type; 83 84 r = ttm_bo_wait(&bo->tbo, true, true, no_wait); 85 ttm_bo_unreserve(&bo->tbo); 86 return r; 87 } 88 89 extern int qxl_bo_create(struct qxl_device *qdev, 90 unsigned long size, 91 bool kernel, bool pinned, u32 domain, 92 struct qxl_surface *surf, 93 struct qxl_bo **bo_ptr); 94 extern int qxl_bo_kmap(struct qxl_bo *bo, void **ptr); 95 extern void qxl_bo_kunmap(struct qxl_bo *bo); 96 void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, int page_offset); 97 void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, void *map); 98 extern struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo); 99 extern void qxl_bo_unref(struct qxl_bo **bo); 100 extern int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr); 101 extern int qxl_bo_unpin(struct qxl_bo *bo); 102 extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned); 103 extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo); 104 105 #endif 106