1 /* $NetBSD: amdgpu_benchmark.c,v 1.4 2021/12/18 23:44:58 riastradh Exp $ */ 2 3 /* 4 * Copyright 2009 Jerome Glisse. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Jerome Glisse 25 */ 26 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: amdgpu_benchmark.c,v 1.4 2021/12/18 23:44:58 riastradh Exp $"); 29 30 #include <drm/amdgpu_drm.h> 31 #include "amdgpu.h" 32 33 #define AMDGPU_BENCHMARK_ITERATIONS 1024 34 #define AMDGPU_BENCHMARK_COMMON_MODES_N 17 35 36 static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size, 37 uint64_t saddr, uint64_t daddr, int n) 38 { 39 unsigned long start_jiffies; 40 unsigned long end_jiffies; 41 struct dma_fence *fence; 42 int i, r; 43 44 start_jiffies = jiffies; 45 for (i = 0; i < n; i++) { 46 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; 47 r = amdgpu_copy_buffer(ring, saddr, daddr, size, NULL, &fence, 48 false, false); 49 if (r) 50 goto exit_do_move; 51 r = dma_fence_wait(fence, false); 52 dma_fence_put(fence); 53 if (r) 54 goto exit_do_move; 55 } 56 end_jiffies = jiffies; 57 r = jiffies_to_msecs(end_jiffies - start_jiffies); 58 59 exit_do_move: 60 return r; 61 } 62 63 64 static void amdgpu_benchmark_log_results(int n, unsigned size, 65 unsigned int time, 66 unsigned sdomain, unsigned ddomain, 67 const char *kind) 68 { 69 unsigned int throughput = (n * (size >> 10)) / time; 70 DRM_INFO("amdgpu: %s %u bo moves of %u kB from" 71 " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n", 72 kind, n, size >> 10, sdomain, ddomain, time, 73 throughput * 8, throughput); 74 } 75 76 static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size, 77 unsigned sdomain, unsigned ddomain) 78 { 79 struct amdgpu_bo *dobj = NULL; 80 struct amdgpu_bo *sobj = NULL; 81 struct amdgpu_bo_param bp; 82 uint64_t saddr, daddr; 83 int r, n; 84 int time; 85 86 memset(&bp, 0, sizeof(bp)); 87 bp.size = size; 88 bp.byte_align = PAGE_SIZE; 89 bp.domain = sdomain; 90 bp.flags = 0; 91 bp.type = ttm_bo_type_kernel; 92 bp.resv = NULL; 93 n = AMDGPU_BENCHMARK_ITERATIONS; 94 r = amdgpu_bo_create(adev, &bp, &sobj); 95 if (r) { 96 goto out_cleanup; 97 } 98 r = amdgpu_bo_reserve(sobj, false); 99 if (unlikely(r != 0)) 100 goto out_cleanup; 101 r = amdgpu_bo_pin(sobj, sdomain); 102 if (r) { 103 amdgpu_bo_unreserve(sobj); 104 goto out_cleanup; 105 } 106 r = amdgpu_ttm_alloc_gart(&sobj->tbo); 107 amdgpu_bo_unreserve(sobj); 108 if (r) { 109 goto out_cleanup; 110 } 111 saddr = amdgpu_bo_gpu_offset(sobj); 112 bp.domain = ddomain; 113 r = amdgpu_bo_create(adev, &bp, &dobj); 114 if (r) { 115 goto out_cleanup; 116 } 117 r = amdgpu_bo_reserve(dobj, false); 118 if (unlikely(r != 0)) 119 goto out_cleanup; 120 r = amdgpu_bo_pin(dobj, ddomain); 121 if (r) { 122 amdgpu_bo_unreserve(sobj); 123 goto out_cleanup; 124 } 125 r = amdgpu_ttm_alloc_gart(&dobj->tbo); 126 amdgpu_bo_unreserve(dobj); 127 if (r) { 128 goto out_cleanup; 129 } 130 daddr = amdgpu_bo_gpu_offset(dobj); 131 132 if (adev->mman.buffer_funcs) { 133 time = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n); 134 if (time < 0) 135 goto out_cleanup; 136 if (time > 0) 137 amdgpu_benchmark_log_results(n, size, time, 138 sdomain, ddomain, "dma"); 139 } 140 141 out_cleanup: 142 /* Check error value now. The value can be overwritten when clean up.*/ 143 if (r) { 144 DRM_ERROR("Error while benchmarking BO move.\n"); 145 } 146 147 if (sobj) { 148 r = amdgpu_bo_reserve(sobj, true); 149 if (likely(r == 0)) { 150 amdgpu_bo_unpin(sobj); 151 amdgpu_bo_unreserve(sobj); 152 } 153 amdgpu_bo_unref(&sobj); 154 } 155 if (dobj) { 156 r = amdgpu_bo_reserve(dobj, true); 157 if (likely(r == 0)) { 158 amdgpu_bo_unpin(dobj); 159 amdgpu_bo_unreserve(dobj); 160 } 161 amdgpu_bo_unref(&dobj); 162 } 163 } 164 165 void amdgpu_benchmark(struct amdgpu_device *adev, int test_number) 166 { 167 int i; 168 static const int common_modes[AMDGPU_BENCHMARK_COMMON_MODES_N] = { 169 640 * 480 * 4, 170 720 * 480 * 4, 171 800 * 600 * 4, 172 848 * 480 * 4, 173 1024 * 768 * 4, 174 1152 * 768 * 4, 175 1280 * 720 * 4, 176 1280 * 800 * 4, 177 1280 * 854 * 4, 178 1280 * 960 * 4, 179 1280 * 1024 * 4, 180 1440 * 900 * 4, 181 1400 * 1050 * 4, 182 1680 * 1050 * 4, 183 1600 * 1200 * 4, 184 1920 * 1080 * 4, 185 1920 * 1200 * 4 186 }; 187 188 switch (test_number) { 189 case 1: 190 /* simple test, VRAM to GTT and GTT to VRAM */ 191 amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT, 192 AMDGPU_GEM_DOMAIN_VRAM); 193 amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM, 194 AMDGPU_GEM_DOMAIN_GTT); 195 break; 196 case 2: 197 /* simple test, VRAM to VRAM */ 198 amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM, 199 AMDGPU_GEM_DOMAIN_VRAM); 200 break; 201 case 3: 202 /* GTT to VRAM, buffer size sweep, powers of 2 */ 203 for (i = 1; i <= 16384; i <<= 1) 204 amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, 205 AMDGPU_GEM_DOMAIN_GTT, 206 AMDGPU_GEM_DOMAIN_VRAM); 207 break; 208 case 4: 209 /* VRAM to GTT, buffer size sweep, powers of 2 */ 210 for (i = 1; i <= 16384; i <<= 1) 211 amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, 212 AMDGPU_GEM_DOMAIN_VRAM, 213 AMDGPU_GEM_DOMAIN_GTT); 214 break; 215 case 5: 216 /* VRAM to VRAM, buffer size sweep, powers of 2 */ 217 for (i = 1; i <= 16384; i <<= 1) 218 amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, 219 AMDGPU_GEM_DOMAIN_VRAM, 220 AMDGPU_GEM_DOMAIN_VRAM); 221 break; 222 case 6: 223 /* GTT to VRAM, buffer size sweep, common modes */ 224 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) 225 amdgpu_benchmark_move(adev, common_modes[i], 226 AMDGPU_GEM_DOMAIN_GTT, 227 AMDGPU_GEM_DOMAIN_VRAM); 228 break; 229 case 7: 230 /* VRAM to GTT, buffer size sweep, common modes */ 231 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) 232 amdgpu_benchmark_move(adev, common_modes[i], 233 AMDGPU_GEM_DOMAIN_VRAM, 234 AMDGPU_GEM_DOMAIN_GTT); 235 break; 236 case 8: 237 /* VRAM to VRAM, buffer size sweep, common modes */ 238 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) 239 amdgpu_benchmark_move(adev, common_modes[i], 240 AMDGPU_GEM_DOMAIN_VRAM, 241 AMDGPU_GEM_DOMAIN_VRAM); 242 break; 243 244 default: 245 DRM_ERROR("Unknown benchmark\n"); 246 } 247 } 248
Indexes created Sat Sep 20 22:09:52 GMT 2025