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1 | // SPDX-License-Identifier: GPL-2.0 OR MIT | |
2 | /* | |
3 | * Copyright 2009 VMware, Inc. | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |
6 | * copy of this software and associated documentation files (the "Software"), | |
7 | * to deal in the Software without restriction, including without limitation | |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
9 | * and/or sell copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
21 | * OTHER DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: Michel Dänzer | |
24 | */ | |
25 | ||
26 | #include <drm/amdgpu_drm.h> | |
27 | #include "amdgpu.h" | |
28 | #include "amdgpu_uvd.h" | |
29 | #include "amdgpu_vce.h" | |
30 | ||
31 | /* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */ | |
32 | static void amdgpu_do_test_moves(struct amdgpu_device *adev) | |
33 | { | |
34 | struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; | |
35 | struct amdgpu_bo *vram_obj = NULL; | |
36 | struct amdgpu_bo **gtt_obj = NULL; | |
37 | struct amdgpu_bo_param bp; | |
38 | uint64_t gart_addr, vram_addr; | |
39 | unsigned n, size; | |
40 | int i, r; | |
41 | ||
42 | size = 1024 * 1024; | |
43 | ||
44 | /* Number of tests = | |
45 | * (Total GTT - gart_pin_size - (2 transfer windows for buffer moves)) / test size | |
46 | */ | |
47 | n = adev->gmc.gart_size - atomic64_read(&adev->gart_pin_size); | |
48 | n -= AMDGPU_GTT_MAX_TRANSFER_SIZE * AMDGPU_GTT_NUM_TRANSFER_WINDOWS * | |
49 | AMDGPU_GPU_PAGE_SIZE; | |
50 | n /= size; | |
51 | ||
52 | gtt_obj = kcalloc(n, sizeof(*gtt_obj), GFP_KERNEL); | |
53 | if (!gtt_obj) { | |
54 | DRM_ERROR("Failed to allocate %d pointers\n", n); | |
55 | r = 1; | |
56 | goto out_cleanup; | |
57 | } | |
58 | memset(&bp, 0, sizeof(bp)); | |
59 | bp.size = size; | |
60 | bp.byte_align = PAGE_SIZE; | |
61 | bp.domain = AMDGPU_GEM_DOMAIN_VRAM; | |
62 | bp.flags = 0; | |
63 | bp.type = ttm_bo_type_kernel; | |
64 | bp.resv = NULL; | |
65 | bp.bo_ptr_size = sizeof(struct amdgpu_bo); | |
66 | ||
67 | r = amdgpu_bo_create(adev, &bp, &vram_obj); | |
68 | if (r) { | |
69 | DRM_ERROR("Failed to create VRAM object\n"); | |
70 | goto out_cleanup; | |
71 | } | |
72 | r = amdgpu_bo_reserve(vram_obj, false); | |
73 | if (unlikely(r != 0)) | |
74 | goto out_unref; | |
75 | r = amdgpu_bo_pin(vram_obj, AMDGPU_GEM_DOMAIN_VRAM); | |
76 | if (r) { | |
77 | DRM_ERROR("Failed to pin VRAM object\n"); | |
78 | goto out_unres; | |
79 | } | |
80 | vram_addr = amdgpu_bo_gpu_offset(vram_obj); | |
81 | for (i = 0; i < n; i++) { | |
82 | void *gtt_map, *vram_map; | |
83 | void **gart_start, **gart_end; | |
84 | void **vram_start, **vram_end; | |
85 | struct dma_fence *fence = NULL; | |
86 | ||
87 | bp.domain = AMDGPU_GEM_DOMAIN_GTT; | |
88 | r = amdgpu_bo_create(adev, &bp, gtt_obj + i); | |
89 | if (r) { | |
90 | DRM_ERROR("Failed to create GTT object %d\n", i); | |
91 | goto out_lclean; | |
92 | } | |
93 | ||
94 | r = amdgpu_bo_reserve(gtt_obj[i], false); | |
95 | if (unlikely(r != 0)) | |
96 | goto out_lclean_unref; | |
97 | r = amdgpu_bo_pin(gtt_obj[i], AMDGPU_GEM_DOMAIN_GTT); | |
98 | if (r) { | |
99 | DRM_ERROR("Failed to pin GTT object %d\n", i); | |
100 | goto out_lclean_unres; | |
101 | } | |
102 | r = amdgpu_ttm_alloc_gart(>t_obj[i]->tbo); | |
103 | if (r) { | |
104 | DRM_ERROR("%p bind failed\n", gtt_obj[i]); | |
105 | goto out_lclean_unpin; | |
106 | } | |
107 | gart_addr = amdgpu_bo_gpu_offset(gtt_obj[i]); | |
108 | ||
109 | r = amdgpu_bo_kmap(gtt_obj[i], >t_map); | |
110 | if (r) { | |
111 | DRM_ERROR("Failed to map GTT object %d\n", i); | |
112 | goto out_lclean_unpin; | |
113 | } | |
114 | ||
115 | for (gart_start = gtt_map, gart_end = gtt_map + size; | |
116 | gart_start < gart_end; | |
117 | gart_start++) | |
118 | *gart_start = gart_start; | |
119 | ||
120 | amdgpu_bo_kunmap(gtt_obj[i]); | |
121 | ||
122 | r = amdgpu_copy_buffer(ring, gart_addr, vram_addr, | |
123 | size, NULL, &fence, false, false, false); | |
124 | ||
125 | if (r) { | |
126 | DRM_ERROR("Failed GTT->VRAM copy %d\n", i); | |
127 | goto out_lclean_unpin; | |
128 | } | |
129 | ||
130 | r = dma_fence_wait(fence, false); | |
131 | if (r) { | |
132 | DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i); | |
133 | goto out_lclean_unpin; | |
134 | } | |
135 | ||
136 | dma_fence_put(fence); | |
137 | fence = NULL; | |
138 | ||
139 | r = amdgpu_bo_kmap(vram_obj, &vram_map); | |
140 | if (r) { | |
141 | DRM_ERROR("Failed to map VRAM object after copy %d\n", i); | |
142 | goto out_lclean_unpin; | |
143 | } | |
144 | ||
145 | for (gart_start = gtt_map, gart_end = gtt_map + size, | |
146 | vram_start = vram_map, vram_end = vram_map + size; | |
147 | vram_start < vram_end; | |
148 | gart_start++, vram_start++) { | |
149 | if (*vram_start != gart_start) { | |
150 | DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, " | |
151 | "expected 0x%p (GTT/VRAM offset " | |
152 | "0x%16llx/0x%16llx)\n", | |
153 | i, *vram_start, gart_start, | |
154 | (unsigned long long) | |
155 | (gart_addr - adev->gmc.gart_start + | |
156 | (void *)gart_start - gtt_map), | |
157 | (unsigned long long) | |
158 | (vram_addr - adev->gmc.vram_start + | |
159 | (void *)gart_start - gtt_map)); | |
160 | amdgpu_bo_kunmap(vram_obj); | |
161 | goto out_lclean_unpin; | |
162 | } | |
163 | *vram_start = vram_start; | |
164 | } | |
165 | ||
166 | amdgpu_bo_kunmap(vram_obj); | |
167 | ||
168 | r = amdgpu_copy_buffer(ring, vram_addr, gart_addr, | |
169 | size, NULL, &fence, false, false, false); | |
170 | ||
171 | if (r) { | |
172 | DRM_ERROR("Failed VRAM->GTT copy %d\n", i); | |
173 | goto out_lclean_unpin; | |
174 | } | |
175 | ||
176 | r = dma_fence_wait(fence, false); | |
177 | if (r) { | |
178 | DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i); | |
179 | goto out_lclean_unpin; | |
180 | } | |
181 | ||
182 | dma_fence_put(fence); | |
183 | fence = NULL; | |
184 | ||
185 | r = amdgpu_bo_kmap(gtt_obj[i], >t_map); | |
186 | if (r) { | |
187 | DRM_ERROR("Failed to map GTT object after copy %d\n", i); | |
188 | goto out_lclean_unpin; | |
189 | } | |
190 | ||
191 | for (gart_start = gtt_map, gart_end = gtt_map + size, | |
192 | vram_start = vram_map, vram_end = vram_map + size; | |
193 | gart_start < gart_end; | |
194 | gart_start++, vram_start++) { | |
195 | if (*gart_start != vram_start) { | |
196 | DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, " | |
197 | "expected 0x%p (VRAM/GTT offset " | |
198 | "0x%16llx/0x%16llx)\n", | |
199 | i, *gart_start, vram_start, | |
200 | (unsigned long long) | |
201 | (vram_addr - adev->gmc.vram_start + | |
202 | (void *)vram_start - vram_map), | |
203 | (unsigned long long) | |
204 | (gart_addr - adev->gmc.gart_start + | |
205 | (void *)vram_start - vram_map)); | |
206 | amdgpu_bo_kunmap(gtt_obj[i]); | |
207 | goto out_lclean_unpin; | |
208 | } | |
209 | } | |
210 | ||
211 | amdgpu_bo_kunmap(gtt_obj[i]); | |
212 | ||
213 | DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n", | |
214 | gart_addr - adev->gmc.gart_start); | |
215 | continue; | |
216 | ||
217 | out_lclean_unpin: | |
218 | amdgpu_bo_unpin(gtt_obj[i]); | |
219 | out_lclean_unres: | |
220 | amdgpu_bo_unreserve(gtt_obj[i]); | |
221 | out_lclean_unref: | |
222 | amdgpu_bo_unref(>t_obj[i]); | |
223 | out_lclean: | |
224 | for (--i; i >= 0; --i) { | |
225 | amdgpu_bo_unpin(gtt_obj[i]); | |
226 | amdgpu_bo_unreserve(gtt_obj[i]); | |
227 | amdgpu_bo_unref(>t_obj[i]); | |
228 | } | |
229 | if (fence) | |
230 | dma_fence_put(fence); | |
231 | break; | |
232 | } | |
233 | ||
234 | amdgpu_bo_unpin(vram_obj); | |
235 | out_unres: | |
236 | amdgpu_bo_unreserve(vram_obj); | |
237 | out_unref: | |
238 | amdgpu_bo_unref(&vram_obj); | |
239 | out_cleanup: | |
240 | kfree(gtt_obj); | |
241 | if (r) { | |
242 | pr_warn("Error while testing BO move\n"); | |
243 | } | |
244 | } | |
245 | ||
246 | void amdgpu_test_moves(struct amdgpu_device *adev) | |
247 | { | |
248 | if (adev->mman.buffer_funcs) | |
249 | amdgpu_do_test_moves(adev); | |
250 | } |