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 31static 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, false); 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 51exit_do_move: 52 etime = ktime_get(); 53 *time_ms = ktime_ms_delta(etime, stime); 54 55 return r; 56} 57 58 59static 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 75static 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 110out_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 122int 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 256done: 257 mutex_unlock(&adev->benchmark_mutex); 258 259 return r; 260} 261