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