2 * Copyright 2016 Advanced Micro Devices, Inc.
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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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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
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20 * OTHER DEALINGS IN THE SOFTWARE.
24 #ifndef __AMDGPU_TTM_H__
25 #define __AMDGPU_TTM_H__
27 #include "gpu_scheduler.h"
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)
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)
37 #define AMDGPU_TTM_LRU_SIZE 20
39 struct amdgpu_mman_lru {
40 struct list_head *lru[TTM_NUM_MEM_TYPES];
41 struct list_head *swap_lru;
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;
51 #if defined(CONFIG_DEBUG_FS)
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;
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;
68 extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
69 extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
71 int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
72 struct ttm_buffer_object *tbo,
73 const struct ttm_place *place,
74 struct ttm_mem_reg *mem);
76 int amdgpu_copy_buffer(struct amdgpu_ring *ring,
80 struct reservation_object *resv,
81 struct dma_fence **fence, bool direct_submit);
82 int amdgpu_fill_buffer(struct amdgpu_bo *bo,
84 struct reservation_object *resv,
85 struct dma_fence **fence);
87 int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma);
88 bool amdgpu_ttm_is_bound(struct ttm_tt *ttm);
89 int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem);