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