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[linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_ttm.h
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 "amdgpu.h"
28 #include "gpu_scheduler.h"
29
30 #define AMDGPU_PL_GDS           (TTM_PL_PRIV + 0)
31 #define AMDGPU_PL_GWS           (TTM_PL_PRIV + 1)
32 #define AMDGPU_PL_OA            (TTM_PL_PRIV + 2)
33
34 #define AMDGPU_PL_FLAG_GDS              (TTM_PL_FLAG_PRIV << 0)
35 #define AMDGPU_PL_FLAG_GWS              (TTM_PL_FLAG_PRIV << 1)
36 #define AMDGPU_PL_FLAG_OA               (TTM_PL_FLAG_PRIV << 2)
37
38 #define AMDGPU_GTT_MAX_TRANSFER_SIZE    512
39 #define AMDGPU_GTT_NUM_TRANSFER_WINDOWS 2
40
41 struct amdgpu_mman {
42         struct ttm_bo_global_ref        bo_global_ref;
43         struct drm_global_reference     mem_global_ref;
44         struct ttm_bo_device            bdev;
45         bool                            mem_global_referenced;
46         bool                            initialized;
47
48 #if defined(CONFIG_DEBUG_FS)
49         struct dentry                   *debugfs_entries[8];
50 #endif
51
52         /* buffer handling */
53         const struct amdgpu_buffer_funcs        *buffer_funcs;
54         struct amdgpu_ring                      *buffer_funcs_ring;
55
56         struct mutex                            gtt_window_lock;
57         /* Scheduler entity for buffer moves */
58         struct amd_sched_entity                 entity;
59 };
60
61 struct amdgpu_copy_mem {
62         struct ttm_buffer_object        *bo;
63         struct ttm_mem_reg              *mem;
64         unsigned long                   offset;
65 };
66
67 extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
68 extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
69
70 bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem);
71 uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man);
72
73 uint64_t amdgpu_vram_mgr_usage(struct ttm_mem_type_manager *man);
74 uint64_t amdgpu_vram_mgr_vis_usage(struct ttm_mem_type_manager *man);
75
76 int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset,
77                        uint64_t dst_offset, uint32_t byte_count,
78                        struct reservation_object *resv,
79                        struct dma_fence **fence, bool direct_submit,
80                        bool vm_needs_flush);
81 int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev,
82                                struct amdgpu_copy_mem *src,
83                                struct amdgpu_copy_mem *dst,
84                                uint64_t size,
85                                struct reservation_object *resv,
86                                struct dma_fence **f);
87 int amdgpu_fill_buffer(struct amdgpu_bo *bo,
88                         uint64_t src_data,
89                         struct reservation_object *resv,
90                         struct dma_fence **fence);
91
92 int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma);
93 bool amdgpu_ttm_is_bound(struct ttm_tt *ttm);
94 int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem);
95 int amdgpu_ttm_recover_gart(struct amdgpu_device *adev);
96
97 int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages);
98 void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct page **pages);
99 void amdgpu_ttm_tt_mark_user_pages(struct ttm_tt *ttm);
100 int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr,
101                                      uint32_t flags);
102 bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm);
103 struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm);
104 bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
105                                   unsigned long end);
106 bool amdgpu_ttm_tt_userptr_invalidated(struct ttm_tt *ttm,
107                                        int *last_invalidated);
108 bool amdgpu_ttm_tt_userptr_needs_pages(struct ttm_tt *ttm);
109 bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm);
110 uint64_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm,
111                                  struct ttm_mem_reg *mem);
112
113 #endif
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