drm/amdgpu: drop the extra VM huge page flag v2
[linux-2.6-block.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_vm.h
CommitLineData
073440d2
CK
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 * Authors: Christian König
23 */
24#ifndef __AMDGPU_VM_H__
25#define __AMDGPU_VM_H__
26
27#include <linux/rbtree.h>
28
29#include "gpu_scheduler.h"
30#include "amdgpu_sync.h"
31#include "amdgpu_ring.h"
32
33struct amdgpu_bo_va;
34struct amdgpu_job;
35struct amdgpu_bo_list_entry;
36
37/*
38 * GPUVM handling
39 */
40
41/* maximum number of VMIDs */
42#define AMDGPU_NUM_VM 16
43
44/* Maximum number of PTEs the hardware can write with one command */
45#define AMDGPU_VM_MAX_UPDATE_SIZE 0x3FFFF
46
47/* number of entries in page table */
36b32a68 48#define AMDGPU_VM_PTE_COUNT(adev) (1 << (adev)->vm_manager.block_size)
073440d2
CK
49
50/* PTBs (Page Table Blocks) need to be aligned to 32K */
51#define AMDGPU_VM_PTB_ALIGN_SIZE 32768
52
53/* LOG2 number of continuous pages for the fragment field */
6be7adb3
CK
54#define AMDGPU_LOG2_PAGES_PER_FRAG(adev) \
55 ((adev)->asic_type < CHIP_VEGA10 ? 4 : \
56 (adev)->vm_manager.block_size)
073440d2 57
35ba15f0
CK
58#define AMDGPU_PTE_VALID (1ULL << 0)
59#define AMDGPU_PTE_SYSTEM (1ULL << 1)
60#define AMDGPU_PTE_SNOOPED (1ULL << 2)
073440d2
CK
61
62/* VI only */
35ba15f0 63#define AMDGPU_PTE_EXECUTABLE (1ULL << 4)
073440d2 64
35ba15f0
CK
65#define AMDGPU_PTE_READABLE (1ULL << 5)
66#define AMDGPU_PTE_WRITEABLE (1ULL << 6)
073440d2 67
982a1348 68#define AMDGPU_PTE_FRAG(x) ((x & 0x1fULL) << 7)
073440d2 69
d0766e98
ZJ
70/* TILED for VEGA10, reserved for older ASICs */
71#define AMDGPU_PTE_PRT (1ULL << 51)
284710fa 72
cf2f0a37
AD
73/* PDE is handled as PTE for VEGA10 */
74#define AMDGPU_PDE_PTE (1ULL << 54)
75
ca02061c
AD
76/* VEGA10 only */
77#define AMDGPU_PTE_MTYPE(a) ((uint64_t)a << 57)
78#define AMDGPU_PTE_MTYPE_MASK AMDGPU_PTE_MTYPE(3ULL)
79
073440d2
CK
80/* How to programm VM fault handling */
81#define AMDGPU_VM_FAULT_STOP_NEVER 0
82#define AMDGPU_VM_FAULT_STOP_FIRST 1
83#define AMDGPU_VM_FAULT_STOP_ALWAYS 2
84
eb60ef2b
CK
85/* max number of VMHUB */
86#define AMDGPU_MAX_VMHUBS 2
87#define AMDGPU_GFXHUB 0
88#define AMDGPU_MMHUB 1
89
90/* hardcode that limit for now */
91#define AMDGPU_VA_RESERVED_SIZE (8 << 20)
c3505770
CZ
92/* max vmids dedicated for process */
93#define AMDGPU_VM_MAX_RESERVED_VMID 1
eb60ef2b 94
9a4b7d4c
HK
95#define AMDGPU_VM_CONTEXT_GFX 0
96#define AMDGPU_VM_CONTEXT_COMPUTE 1
97
98/* See vm_update_mode */
99#define AMDGPU_VM_USE_CPU_FOR_GFX (1 << 0)
100#define AMDGPU_VM_USE_CPU_FOR_COMPUTE (1 << 1)
101
102
073440d2
CK
103struct amdgpu_vm_pt {
104 struct amdgpu_bo *bo;
105 uint64_t addr;
67003a15
CK
106
107 /* array of page tables, one for each directory entry */
108 struct amdgpu_vm_pt *entries;
109 unsigned last_entry_used;
073440d2
CK
110};
111
112struct amdgpu_vm {
113 /* tree of virtual addresses mapped */
114 struct rb_root va;
115
116 /* protecting invalidated */
117 spinlock_t status_lock;
118
119 /* BOs moved, but not yet updated in the PT */
120 struct list_head invalidated;
121
122 /* BOs cleared in the PT because of a move */
123 struct list_head cleared;
124
125 /* BO mappings freed, but not yet updated in the PT */
126 struct list_head freed;
127
128 /* contains the page directory */
67003a15 129 struct amdgpu_vm_pt root;
a24960f3 130 struct dma_fence *last_dir_update;
073440d2
CK
131 uint64_t last_eviction_counter;
132
073440d2
CK
133 /* protecting freed */
134 spinlock_t freed_lock;
135
136 /* Scheduler entity for page table updates */
137 struct amd_sched_entity entity;
138
139 /* client id */
140 u64 client_id;
36bbf3bf
CZ
141 /* dedicated to vm */
142 struct amdgpu_vm_id *reserved_vmid[AMDGPU_MAX_VMHUBS];
9a4b7d4c
HK
143
144 /* Flag to indicate if VM tables are updated by CPU or GPU (SDMA) */
145 bool use_cpu_for_update;
51ac7eec
YZ
146
147 /* Flag to indicate ATS support from PTE for GFX9 */
148 bool pte_support_ats;
073440d2
CK
149};
150
151struct amdgpu_vm_id {
152 struct list_head list;
073440d2 153 struct amdgpu_sync active;
220196b3 154 struct dma_fence *last_flush;
073440d2
CK
155 atomic64_t owner;
156
157 uint64_t pd_gpu_addr;
158 /* last flushed PD/PT update */
220196b3 159 struct dma_fence *flushed_updates;
073440d2
CK
160
161 uint32_t current_gpu_reset_count;
162
163 uint32_t gds_base;
164 uint32_t gds_size;
165 uint32_t gws_base;
166 uint32_t gws_size;
167 uint32_t oa_base;
168 uint32_t oa_size;
169};
170
7645670d
CK
171struct amdgpu_vm_id_manager {
172 struct mutex lock;
173 unsigned num_ids;
174 struct list_head ids_lru;
175 struct amdgpu_vm_id ids[AMDGPU_NUM_VM];
c3505770 176 atomic_t reserved_vmid_num;
7645670d
CK
177};
178
073440d2
CK
179struct amdgpu_vm_manager {
180 /* Handling of VMIDs */
7645670d 181 struct amdgpu_vm_id_manager id_mgr[AMDGPU_MAX_VMHUBS];
073440d2
CK
182
183 /* Handling of VM fences */
184 u64 fence_context;
185 unsigned seqno[AMDGPU_MAX_RINGS];
186
22770e5a 187 uint64_t max_pfn;
8437a097 188 uint32_t num_level;
36b32a68
ZJ
189 uint64_t vm_size;
190 uint32_t block_size;
073440d2
CK
191 /* vram base address for page table entry */
192 u64 vram_base_offset;
073440d2
CK
193 /* vm pte handling */
194 const struct amdgpu_vm_pte_funcs *vm_pte_funcs;
195 struct amdgpu_ring *vm_pte_rings[AMDGPU_MAX_RINGS];
196 unsigned vm_pte_num_rings;
197 atomic_t vm_pte_next_ring;
198 /* client id counter */
199 atomic64_t client_counter;
284710fa
CK
200
201 /* partial resident texture handling */
202 spinlock_t prt_lock;
451bc8eb 203 atomic_t num_prt_users;
9a4b7d4c
HK
204
205 /* controls how VM page tables are updated for Graphics and Compute.
206 * BIT0[= 0] Graphics updated by SDMA [= 1] by CPU
207 * BIT1[= 0] Compute updated by SDMA [= 1] by CPU
208 */
209 int vm_update_mode;
073440d2
CK
210};
211
212void amdgpu_vm_manager_init(struct amdgpu_device *adev);
213void amdgpu_vm_manager_fini(struct amdgpu_device *adev);
9a4b7d4c
HK
214int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
215 int vm_context);
073440d2
CK
216void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm);
217void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
218 struct list_head *validated,
219 struct amdgpu_bo_list_entry *entry);
220int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
221 int (*callback)(void *p, struct amdgpu_bo *bo),
222 void *param);
663e4577
CK
223int amdgpu_vm_alloc_pts(struct amdgpu_device *adev,
224 struct amdgpu_vm *vm,
225 uint64_t saddr, uint64_t size);
073440d2 226int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
220196b3 227 struct amdgpu_sync *sync, struct dma_fence *fence,
073440d2 228 struct amdgpu_job *job);
8fdf074f 229int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job, bool need_pipe_sync);
7645670d
CK
230void amdgpu_vm_reset_id(struct amdgpu_device *adev, unsigned vmhub,
231 unsigned vmid);
32601d48 232void amdgpu_vm_reset_all_ids(struct amdgpu_device *adev);
194d2161
CK
233int amdgpu_vm_update_directories(struct amdgpu_device *adev,
234 struct amdgpu_vm *vm);
073440d2 235int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
f3467818
NH
236 struct amdgpu_vm *vm,
237 struct dma_fence **fence);
073440d2
CK
238int amdgpu_vm_clear_invalids(struct amdgpu_device *adev, struct amdgpu_vm *vm,
239 struct amdgpu_sync *sync);
240int amdgpu_vm_bo_update(struct amdgpu_device *adev,
241 struct amdgpu_bo_va *bo_va,
242 bool clear);
243void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev,
244 struct amdgpu_bo *bo);
245struct amdgpu_bo_va *amdgpu_vm_bo_find(struct amdgpu_vm *vm,
246 struct amdgpu_bo *bo);
247struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev,
248 struct amdgpu_vm *vm,
249 struct amdgpu_bo *bo);
250int amdgpu_vm_bo_map(struct amdgpu_device *adev,
251 struct amdgpu_bo_va *bo_va,
252 uint64_t addr, uint64_t offset,
268c3001 253 uint64_t size, uint64_t flags);
80f95c57
CK
254int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev,
255 struct amdgpu_bo_va *bo_va,
256 uint64_t addr, uint64_t offset,
257 uint64_t size, uint64_t flags);
073440d2
CK
258int amdgpu_vm_bo_unmap(struct amdgpu_device *adev,
259 struct amdgpu_bo_va *bo_va,
260 uint64_t addr);
dc54d3d1
CK
261int amdgpu_vm_bo_clear_mappings(struct amdgpu_device *adev,
262 struct amdgpu_vm *vm,
263 uint64_t saddr, uint64_t size);
073440d2
CK
264void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
265 struct amdgpu_bo_va *bo_va);
bab4fee7 266void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size);
cfbcacf4 267int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
b9bf33d5
CZ
268bool amdgpu_vm_need_pipeline_sync(struct amdgpu_ring *ring,
269 struct amdgpu_job *job);
e59c0205 270void amdgpu_vm_check_compute_bug(struct amdgpu_device *adev);
073440d2
CK
271
272#endif