1 /*
2 * Copyright 2009 Jerome Glisse.
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: Jerome Glisse
23 */
24
25 #include <drm/amdgpu_drm.h>
26 #include "amdgpu.h"
27
28 #define AMDGPU_BENCHMARK_ITERATIONS 1024
29 #define AMDGPU_BENCHMARK_COMMON_MODES_N 17
30
amdgpu_benchmark_do_move(struct amdgpu_device * adev,unsigned size,uint64_t saddr,uint64_t daddr,int n,s64 * time_ms)31 static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,
32 uint64_t saddr, uint64_t daddr, int n, s64 *time_ms)
33 {
34 ktime_t stime, etime;
35 struct dma_fence *fence;
36 int i, r;
37
38 stime = ktime_get();
39 for (i = 0; i < n; i++) {
40 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
41 r = amdgpu_copy_buffer(ring, saddr, daddr, size, NULL, &fence,
42 false, false, 0);
43 if (r)
44 goto exit_do_move;
45 r = dma_fence_wait(fence, false);
46 dma_fence_put(fence);
47 if (r)
48 goto exit_do_move;
49 }
50
51 exit_do_move:
52 etime = ktime_get();
53 *time_ms = ktime_ms_delta(etime, stime);
54
55 return r;
56 }
57
58
amdgpu_benchmark_log_results(struct amdgpu_device * adev,int n,unsigned size,s64 time_ms,unsigned sdomain,unsigned ddomain,char * kind)59 static void amdgpu_benchmark_log_results(struct amdgpu_device *adev,
60 int n, unsigned size,
61 s64 time_ms,
62 unsigned sdomain, unsigned ddomain,
63 char *kind)
64 {
65 s64 throughput = (n * (size >> 10));
66
67 throughput = div64_s64(throughput, time_ms);
68
69 dev_info(adev->dev, "amdgpu: %s %u bo moves of %u kB from"
70 " %d to %d in %lld ms, throughput: %lld Mb/s or %lld MB/s\n",
71 kind, n, size >> 10, sdomain, ddomain, time_ms,
72 throughput * 8, throughput);
73 }
74
amdgpu_benchmark_move(struct amdgpu_device * adev,unsigned size,unsigned sdomain,unsigned ddomain)75 static int amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
76 unsigned sdomain, unsigned ddomain)
77 {
78 struct amdgpu_bo *dobj = NULL;
79 struct amdgpu_bo *sobj = NULL;
80 uint64_t saddr, daddr;
81 s64 time_ms;
82 int r, n;
83
84 n = AMDGPU_BENCHMARK_ITERATIONS;
85
86 r = amdgpu_bo_create_kernel(adev, size,
87 PAGE_SIZE, sdomain,
88 &sobj,
89 &saddr,
90 NULL);
91 if (r)
92 goto out_cleanup;
93 r = amdgpu_bo_create_kernel(adev, size,
94 PAGE_SIZE, ddomain,
95 &dobj,
96 &daddr,
97 NULL);
98 if (r)
99 goto out_cleanup;
100
101 if (adev->mman.buffer_funcs) {
102 r = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n, &time_ms);
103 if (r)
104 goto out_cleanup;
105 else
106 amdgpu_benchmark_log_results(adev, n, size, time_ms,
107 sdomain, ddomain, "dma");
108 }
109
110 out_cleanup:
111 /* Check error value now. The value can be overwritten when clean up.*/
112 if (r < 0)
113 dev_info(adev->dev, "Error while benchmarking BO move.\n");
114
115 if (sobj)
116 amdgpu_bo_free_kernel(&sobj, &saddr, NULL);
117 if (dobj)
118 amdgpu_bo_free_kernel(&dobj, &daddr, NULL);
119 return r;
120 }
121
amdgpu_benchmark(struct amdgpu_device * adev,int test_number)122 int amdgpu_benchmark(struct amdgpu_device *adev, int test_number)
123 {
124 int i, r;
125 static const int common_modes[AMDGPU_BENCHMARK_COMMON_MODES_N] = {
126 640 * 480 * 4,
127 720 * 480 * 4,
128 800 * 600 * 4,
129 848 * 480 * 4,
130 1024 * 768 * 4,
131 1152 * 768 * 4,
132 1280 * 720 * 4,
133 1280 * 800 * 4,
134 1280 * 854 * 4,
135 1280 * 960 * 4,
136 1280 * 1024 * 4,
137 1440 * 900 * 4,
138 1400 * 1050 * 4,
139 1680 * 1050 * 4,
140 1600 * 1200 * 4,
141 1920 * 1080 * 4,
142 1920 * 1200 * 4
143 };
144
145 mutex_lock(&adev->benchmark_mutex);
146 switch (test_number) {
147 case 1:
148 dev_info(adev->dev,
149 "benchmark test: %d (simple test, VRAM to GTT and GTT to VRAM)\n",
150 test_number);
151 /* simple test, VRAM to GTT and GTT to VRAM */
152 r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT,
153 AMDGPU_GEM_DOMAIN_VRAM);
154 if (r)
155 goto done;
156 r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
157 AMDGPU_GEM_DOMAIN_GTT);
158 if (r)
159 goto done;
160 break;
161 case 2:
162 dev_info(adev->dev,
163 "benchmark test: %d (simple test, VRAM to VRAM)\n",
164 test_number);
165 /* simple test, VRAM to VRAM */
166 r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
167 AMDGPU_GEM_DOMAIN_VRAM);
168 if (r)
169 goto done;
170 break;
171 case 3:
172 dev_info(adev->dev,
173 "benchmark test: %d (GTT to VRAM, buffer size sweep, powers of 2)\n",
174 test_number);
175 /* GTT to VRAM, buffer size sweep, powers of 2 */
176 for (i = 1; i <= 16384; i <<= 1) {
177 r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
178 AMDGPU_GEM_DOMAIN_GTT,
179 AMDGPU_GEM_DOMAIN_VRAM);
180 if (r)
181 goto done;
182 }
183 break;
184 case 4:
185 dev_info(adev->dev,
186 "benchmark test: %d (VRAM to GTT, buffer size sweep, powers of 2)\n",
187 test_number);
188 /* VRAM to GTT, buffer size sweep, powers of 2 */
189 for (i = 1; i <= 16384; i <<= 1) {
190 r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
191 AMDGPU_GEM_DOMAIN_VRAM,
192 AMDGPU_GEM_DOMAIN_GTT);
193 if (r)
194 goto done;
195 }
196 break;
197 case 5:
198 dev_info(adev->dev,
199 "benchmark test: %d (VRAM to VRAM, buffer size sweep, powers of 2)\n",
200 test_number);
201 /* VRAM to VRAM, buffer size sweep, powers of 2 */
202 for (i = 1; i <= 16384; i <<= 1) {
203 r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
204 AMDGPU_GEM_DOMAIN_VRAM,
205 AMDGPU_GEM_DOMAIN_VRAM);
206 if (r)
207 goto done;
208 }
209 break;
210 case 6:
211 dev_info(adev->dev,
212 "benchmark test: %d (GTT to VRAM, buffer size sweep, common modes)\n",
213 test_number);
214 /* GTT to VRAM, buffer size sweep, common modes */
215 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {
216 r = amdgpu_benchmark_move(adev, common_modes[i],
217 AMDGPU_GEM_DOMAIN_GTT,
218 AMDGPU_GEM_DOMAIN_VRAM);
219 if (r)
220 goto done;
221 }
222 break;
223 case 7:
224 dev_info(adev->dev,
225 "benchmark test: %d (VRAM to GTT, buffer size sweep, common modes)\n",
226 test_number);
227 /* VRAM to GTT, buffer size sweep, common modes */
228 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {
229 r = amdgpu_benchmark_move(adev, common_modes[i],
230 AMDGPU_GEM_DOMAIN_VRAM,
231 AMDGPU_GEM_DOMAIN_GTT);
232 if (r)
233 goto done;
234 }
235 break;
236 case 8:
237 dev_info(adev->dev,
238 "benchmark test: %d (VRAM to VRAM, buffer size sweep, common modes)\n",
239 test_number);
240 /* VRAM to VRAM, buffer size sweep, common modes */
241 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {
242 r = amdgpu_benchmark_move(adev, common_modes[i],
243 AMDGPU_GEM_DOMAIN_VRAM,
244 AMDGPU_GEM_DOMAIN_VRAM);
245 if (r)
246 goto done;
247 }
248 break;
249
250 default:
251 dev_info(adev->dev, "Unknown benchmark %d\n", test_number);
252 r = -EINVAL;
253 break;
254 }
255
256 done:
257 mutex_unlock(&adev->benchmark_mutex);
258
259 return r;
260 }
261