1/* $NetBSD: radeon_benchmark.c,v 1.4 2021/12/18 23:45:43 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: radeon_benchmark.c,v 1.4 2021/12/18 23:45:43 riastradh Exp $"); 29 30#include <drm/radeon_drm.h> 31#include "radeon_reg.h" 32#include "radeon.h" 33 34#define RADEON_BENCHMARK_COPY_BLIT 1 35#define RADEON_BENCHMARK_COPY_DMA 0 36 37#define RADEON_BENCHMARK_ITERATIONS 1024 38#define RADEON_BENCHMARK_COMMON_MODES_N 17 39 40static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size, 41 uint64_t saddr, uint64_t daddr, 42 int flag, int n, 43 struct dma_resv *resv) 44{ 45 unsigned long start_jiffies; 46 unsigned long end_jiffies; 47 struct radeon_fence *fence = NULL; 48 int i, r; 49 50 start_jiffies = jiffies; 51 for (i = 0; i < n; i++) { 52 switch (flag) { 53 case RADEON_BENCHMARK_COPY_DMA: 54 fence = radeon_copy_dma(rdev, saddr, daddr, 55 size / RADEON_GPU_PAGE_SIZE, 56 resv); 57 break; 58 case RADEON_BENCHMARK_COPY_BLIT: 59 fence = radeon_copy_blit(rdev, saddr, daddr, 60 size / RADEON_GPU_PAGE_SIZE, 61 resv); 62 break; 63 default: 64 DRM_ERROR("Unknown copy method\n"); 65 return -EINVAL; 66 } 67 if (IS_ERR(fence)) 68 return PTR_ERR(fence); 69 70 r = radeon_fence_wait(fence, false); 71 radeon_fence_unref(&fence); 72 if (r) 73 return r; 74 } 75 end_jiffies = jiffies; 76 return jiffies_to_msecs(end_jiffies - start_jiffies); 77} 78 79 80static void radeon_benchmark_log_results(int n, unsigned size, 81 unsigned int time, 82 unsigned sdomain, unsigned ddomain, 83 const char *kind) 84{ 85 unsigned int throughput = (n * (size >> 10)) / time; 86 DRM_INFO("radeon: %s %u bo moves of %u kB from" 87 " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n", 88 kind, n, size >> 10, sdomain, ddomain, time, 89 throughput * 8, throughput); 90} 91 92static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size, 93 unsigned sdomain, unsigned ddomain) 94{ 95 struct radeon_bo *dobj = NULL; 96 struct radeon_bo *sobj = NULL; 97 uint64_t saddr, daddr; 98 int r, n; 99 int time; 100 101 n = RADEON_BENCHMARK_ITERATIONS; 102 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, 0, NULL, NULL, &sobj); 103 if (r) { 104 goto out_cleanup; 105 } 106 r = radeon_bo_reserve(sobj, false); 107 if (unlikely(r != 0)) 108 goto out_cleanup; 109 r = radeon_bo_pin(sobj, sdomain, &saddr); 110 radeon_bo_unreserve(sobj); 111 if (r) { 112 goto out_cleanup; 113 } 114 r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, 0, NULL, NULL, &dobj); 115 if (r) { 116 goto out_cleanup; 117 } 118 r = radeon_bo_reserve(dobj, false); 119 if (unlikely(r != 0)) 120 goto out_cleanup; 121 r = radeon_bo_pin(dobj, ddomain, &daddr); 122 radeon_bo_unreserve(dobj); 123 if (r) { 124 goto out_cleanup; 125 } 126 127 if (rdev->asic->copy.dma) { 128 time = radeon_benchmark_do_move(rdev, size, saddr, daddr, 129 RADEON_BENCHMARK_COPY_DMA, n, 130 dobj->tbo.base.resv); 131 if (time < 0) 132 goto out_cleanup; 133 if (time > 0) 134 radeon_benchmark_log_results(n, size, time, 135 sdomain, ddomain, "dma"); 136 } 137 138 if (rdev->asic->copy.blit) { 139 time = radeon_benchmark_do_move(rdev, size, saddr, daddr, 140 RADEON_BENCHMARK_COPY_BLIT, n, 141 dobj->tbo.base.resv); 142 if (time < 0) 143 goto out_cleanup; 144 if (time > 0) 145 radeon_benchmark_log_results(n, size, time, 146 sdomain, ddomain, "blit"); 147 } 148 149out_cleanup: 150 if (sobj) { 151 r = radeon_bo_reserve(sobj, false); 152 if (likely(r == 0)) { 153 radeon_bo_unpin(sobj); 154 radeon_bo_unreserve(sobj); 155 } 156 radeon_bo_unref(&sobj); 157 } 158 if (dobj) { 159 r = radeon_bo_reserve(dobj, false); 160 if (likely(r == 0)) { 161 radeon_bo_unpin(dobj); 162 radeon_bo_unreserve(dobj); 163 } 164 radeon_bo_unref(&dobj); 165 } 166 167 if (r) { 168 DRM_ERROR("Error while benchmarking BO move.\n"); 169 } 170} 171 172void radeon_benchmark(struct radeon_device *rdev, int test_number) 173{ 174 int i; 175 int common_modes[RADEON_BENCHMARK_COMMON_MODES_N] = { 176 640 * 480 * 4, 177 720 * 480 * 4, 178 800 * 600 * 4, 179 848 * 480 * 4, 180 1024 * 768 * 4, 181 1152 * 768 * 4, 182 1280 * 720 * 4, 183 1280 * 800 * 4, 184 1280 * 854 * 4, 185 1280 * 960 * 4, 186 1280 * 1024 * 4, 187 1440 * 900 * 4, 188 1400 * 1050 * 4, 189 1680 * 1050 * 4, 190 1600 * 1200 * 4, 191 1920 * 1080 * 4, 192 1920 * 1200 * 4 193 }; 194 195 switch (test_number) { 196 case 1: 197 /* simple test, VRAM to GTT and GTT to VRAM */ 198 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT, 199 RADEON_GEM_DOMAIN_VRAM); 200 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM, 201 RADEON_GEM_DOMAIN_GTT); 202 break; 203 case 2: 204 /* simple test, VRAM to VRAM */ 205 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM, 206 RADEON_GEM_DOMAIN_VRAM); 207 break; 208 case 3: 209 /* GTT to VRAM, buffer size sweep, powers of 2 */ 210 for (i = 1; i <= 16384; i <<= 1) 211 radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE, 212 RADEON_GEM_DOMAIN_GTT, 213 RADEON_GEM_DOMAIN_VRAM); 214 break; 215 case 4: 216 /* VRAM to GTT, buffer size sweep, powers of 2 */ 217 for (i = 1; i <= 16384; i <<= 1) 218 radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE, 219 RADEON_GEM_DOMAIN_VRAM, 220 RADEON_GEM_DOMAIN_GTT); 221 break; 222 case 5: 223 /* VRAM to VRAM, buffer size sweep, powers of 2 */ 224 for (i = 1; i <= 16384; i <<= 1) 225 radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE, 226 RADEON_GEM_DOMAIN_VRAM, 227 RADEON_GEM_DOMAIN_VRAM); 228 break; 229 case 6: 230 /* GTT to VRAM, buffer size sweep, common modes */ 231 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++) 232 radeon_benchmark_move(rdev, common_modes[i], 233 RADEON_GEM_DOMAIN_GTT, 234 RADEON_GEM_DOMAIN_VRAM); 235 break; 236 case 7: 237 /* VRAM to GTT, buffer size sweep, common modes */ 238 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++) 239 radeon_benchmark_move(rdev, common_modes[i], 240 RADEON_GEM_DOMAIN_VRAM, 241 RADEON_GEM_DOMAIN_GTT); 242 break; 243 case 8: 244 /* VRAM to VRAM, buffer size sweep, common modes */ 245 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++) 246 radeon_benchmark_move(rdev, common_modes[i], 247 RADEON_GEM_DOMAIN_VRAM, 248 RADEON_GEM_DOMAIN_VRAM); 249 break; 250 251 default: 252 DRM_ERROR("Unknown benchmark\n"); 253 } 254} 255