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