1 /* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 2015 LunarG, 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 14 * in 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Chia-I Wu <olv (at) lunarg.com> 26 */ 27 28 #ifndef ILO_VMA_H 29 #define ILO_VMA_H 30 31 #include "ilo_core.h" 32 #include "ilo_debug.h" 33 #include "ilo_dev.h" 34 35 struct intel_bo; 36 37 /** 38 * A virtual memory area. 39 */ 40 struct ilo_vma { 41 /* address space */ 42 uint32_t vm_size; 43 uint32_t vm_alignment; 44 45 /* backing storage */ 46 struct intel_bo *bo; 47 uint32_t bo_offset; 48 }; 49 50 static inline bool 51 ilo_vma_init(struct ilo_vma *vma, const struct ilo_dev *dev, 52 uint32_t size, uint32_t alignment) 53 { 54 assert(ilo_is_zeroed(vma, sizeof(*vma))); 55 assert(size && alignment); 56 57 vma->vm_alignment = alignment; 58 vma->vm_size = size; 59 60 return true; 61 } 62 63 static inline void 64 ilo_vma_set_bo(struct ilo_vma *vma, const struct ilo_dev *dev, 65 struct intel_bo *bo, uint32_t offset) 66 { 67 assert(offset % vma->vm_alignment == 0); 68 69 vma->bo = bo; 70 vma->bo_offset = offset; 71 } 72 73 #endif /* ILO_VMA_H */ 74
