tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
41struct 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
61struct amdgpu_copy_mem {
62 struct ttm_buffer_object *bo;
63 struct ttm_mem_reg *mem;
64 unsigned long offset;
65};
66
67extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
68extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
69
70bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem);
71uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man);
72
73uint64_t amdgpu_vram_mgr_usage(struct ttm_mem_type_manager *man);
74uint64_t amdgpu_vram_mgr_vis_usage(struct ttm_mem_type_manager *man);
75
76int 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);
81int 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);
87int amdgpu_fill_buffer(struct amdgpu_bo *bo,
88 uint64_t src_data,
89 struct reservation_object *resv,
90 struct dma_fence **fence);
91
92int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma);
93bool amdgpu_ttm_is_bound(struct ttm_tt *ttm);
94int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem);
95int amdgpu_ttm_recover_gart(struct amdgpu_device *adev);
96
97int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages);
98void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct page **pages);
99void amdgpu_ttm_tt_mark_user_pages(struct ttm_tt *ttm);
100int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr,
101 uint32_t flags);
102bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm);
103struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm);
104bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
105 unsigned long end);
106bool amdgpu_ttm_tt_userptr_invalidated(struct ttm_tt *ttm,
107 int *last_invalidated);
108bool amdgpu_ttm_tt_userptr_needs_pages(struct ttm_tt *ttm);
109bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm);
110uint64_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm,
111 struct ttm_mem_reg *mem);
112
113#endif