1 /* 2 * Copyright 2016 Advanced Micro Devices, 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 */ 23 24 #ifndef __AMDGPU_TTM_H__ 25 #define __AMDGPU_TTM_H__ 26 27 #include "gpu_scheduler.h" 28 29 #define AMDGPU_PL_GDS (TTM_PL_PRIV + 0) 30 #define AMDGPU_PL_GWS (TTM_PL_PRIV + 1) 31 #define AMDGPU_PL_OA (TTM_PL_PRIV + 2) 32 33 #define AMDGPU_PL_FLAG_GDS (TTM_PL_FLAG_PRIV << 0) 34 #define AMDGPU_PL_FLAG_GWS (TTM_PL_FLAG_PRIV << 1) 35 #define AMDGPU_PL_FLAG_OA (TTM_PL_FLAG_PRIV << 2) 36 37 #define AMDGPU_TTM_LRU_SIZE 20 38 39 struct amdgpu_mman_lru { 40 struct list_head *lru[TTM_NUM_MEM_TYPES]; 41 struct list_head *swap_lru; 42 }; 43 44 struct amdgpu_mman { 45 struct ttm_bo_global_ref bo_global_ref; 46 struct drm_global_reference mem_global_ref; 47 struct ttm_bo_device bdev; 48 bool mem_global_referenced; 49 bool initialized; 50 51 #if defined(CONFIG_DEBUG_FS) 52 struct dentry *vram; 53 struct dentry *gtt; 54 #endif 55 56 /* buffer handling */ 57 const struct amdgpu_buffer_funcs *buffer_funcs; 58 struct amdgpu_ring *buffer_funcs_ring; 59 /* Scheduler entity for buffer moves */ 60 struct amd_sched_entity entity; 61 62 /* custom LRU management */ 63 struct amdgpu_mman_lru log2_size[AMDGPU_TTM_LRU_SIZE]; 64 /* guard for log2_size array, don't add anything in between */ 65 struct amdgpu_mman_lru guard; 66 }; 67 68 extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func; 69 70 int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man, 71 struct ttm_buffer_object *tbo, 72 const struct ttm_place *place, 73 struct ttm_mem_reg *mem); 74 75 int amdgpu_copy_buffer(struct amdgpu_ring *ring, 76 uint64_t src_offset, 77 uint64_t dst_offset, 78 uint32_t byte_count, 79 struct reservation_object *resv, 80 struct fence **fence, bool direct_submit); 81 int amdgpu_fill_buffer(struct amdgpu_bo *bo, 82 uint32_t src_data, 83 struct reservation_object *resv, 84 struct fence **fence); 85 86 int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma); 87 bool amdgpu_ttm_is_bound(struct ttm_tt *ttm); 88 int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem); 89 90 #endif 91