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