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1/*2 * Copyright 2009 Jerome Glisse.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Jerome Glisse23 */24 25#include <drm/amdgpu_drm.h>26#include "amdgpu.h"27 28#define AMDGPU_BENCHMARK_ITERATIONS 102429#define AMDGPU_BENCHMARK_COMMON_MODES_N 1730 31static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,32 uint64_t saddr, uint64_t daddr, int n, s64 *time_ms)33{34 ktime_t stime, etime;35 struct dma_fence *fence;36 int i, r;37 38 stime = ktime_get();39 for (i = 0; i < n; i++) {40 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;41 r = amdgpu_copy_buffer(ring, saddr, daddr, size, NULL, &fence,42 false, false, 0);43 if (r)44 goto exit_do_move;45 r = dma_fence_wait(fence, false);46 dma_fence_put(fence);47 if (r)48 goto exit_do_move;49 }50 51exit_do_move:52 etime = ktime_get();53 *time_ms = ktime_ms_delta(etime, stime);54 55 return r;56}57 58 59static void amdgpu_benchmark_log_results(struct amdgpu_device *adev,60 int n, unsigned size,61 s64 time_ms,62 unsigned sdomain, unsigned ddomain,63 char *kind)64{65 s64 throughput = (n * (size >> 10));66 67 throughput = div64_s64(throughput, time_ms);68 69 dev_info(adev->dev, "amdgpu: %s %u bo moves of %u kB from"70 " %d to %d in %lld ms, throughput: %lld Mb/s or %lld MB/s\n",71 kind, n, size >> 10, sdomain, ddomain, time_ms,72 throughput * 8, throughput);73}74 75static int amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,76 unsigned sdomain, unsigned ddomain)77{78 struct amdgpu_bo *dobj = NULL;79 struct amdgpu_bo *sobj = NULL;80 uint64_t saddr, daddr;81 s64 time_ms;82 int r, n;83 84 n = AMDGPU_BENCHMARK_ITERATIONS;85 86 r = amdgpu_bo_create_kernel(adev, size,87 PAGE_SIZE, sdomain,88 &sobj,89 &saddr,90 NULL);91 if (r)92 goto out_cleanup;93 r = amdgpu_bo_create_kernel(adev, size,94 PAGE_SIZE, ddomain,95 &dobj,96 &daddr,97 NULL);98 if (r)99 goto out_cleanup;100 101 if (adev->mman.buffer_funcs) {102 r = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n, &time_ms);103 if (r)104 goto out_cleanup;105 else106 amdgpu_benchmark_log_results(adev, n, size, time_ms,107 sdomain, ddomain, "dma");108 }109 110out_cleanup:111 /* Check error value now. The value can be overwritten when clean up.*/112 if (r < 0)113 dev_info(adev->dev, "Error while benchmarking BO move.\n");114 115 if (sobj)116 amdgpu_bo_free_kernel(&sobj, &saddr, NULL);117 if (dobj)118 amdgpu_bo_free_kernel(&dobj, &daddr, NULL);119 return r;120}121 122int amdgpu_benchmark(struct amdgpu_device *adev, int test_number)123{124 int i, r;125 static const int common_modes[AMDGPU_BENCHMARK_COMMON_MODES_N] = {126 640 * 480 * 4,127 720 * 480 * 4,128 800 * 600 * 4,129 848 * 480 * 4,130 1024 * 768 * 4,131 1152 * 768 * 4,132 1280 * 720 * 4,133 1280 * 800 * 4,134 1280 * 854 * 4,135 1280 * 960 * 4,136 1280 * 1024 * 4,137 1440 * 900 * 4,138 1400 * 1050 * 4,139 1680 * 1050 * 4,140 1600 * 1200 * 4,141 1920 * 1080 * 4,142 1920 * 1200 * 4143 };144 145 mutex_lock(&adev->benchmark_mutex);146 switch (test_number) {147 case 1:148 dev_info(adev->dev,149 "benchmark test: %d (simple test, VRAM to GTT and GTT to VRAM)\n",150 test_number);151 /* simple test, VRAM to GTT and GTT to VRAM */152 r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT,153 AMDGPU_GEM_DOMAIN_VRAM);154 if (r)155 goto done;156 r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,157 AMDGPU_GEM_DOMAIN_GTT);158 if (r)159 goto done;160 break;161 case 2:162 dev_info(adev->dev,163 "benchmark test: %d (simple test, VRAM to VRAM)\n",164 test_number);165 /* simple test, VRAM to VRAM */166 r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,167 AMDGPU_GEM_DOMAIN_VRAM);168 if (r)169 goto done;170 break;171 case 3:172 dev_info(adev->dev,173 "benchmark test: %d (GTT to VRAM, buffer size sweep, powers of 2)\n",174 test_number);175 /* GTT to VRAM, buffer size sweep, powers of 2 */176 for (i = 1; i <= 16384; i <<= 1) {177 r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,178 AMDGPU_GEM_DOMAIN_GTT,179 AMDGPU_GEM_DOMAIN_VRAM);180 if (r)181 goto done;182 }183 break;184 case 4:185 dev_info(adev->dev,186 "benchmark test: %d (VRAM to GTT, buffer size sweep, powers of 2)\n",187 test_number);188 /* VRAM to GTT, buffer size sweep, powers of 2 */189 for (i = 1; i <= 16384; i <<= 1) {190 r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,191 AMDGPU_GEM_DOMAIN_VRAM,192 AMDGPU_GEM_DOMAIN_GTT);193 if (r)194 goto done;195 }196 break;197 case 5:198 dev_info(adev->dev,199 "benchmark test: %d (VRAM to VRAM, buffer size sweep, powers of 2)\n",200 test_number);201 /* VRAM to VRAM, buffer size sweep, powers of 2 */202 for (i = 1; i <= 16384; i <<= 1) {203 r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,204 AMDGPU_GEM_DOMAIN_VRAM,205 AMDGPU_GEM_DOMAIN_VRAM);206 if (r)207 goto done;208 }209 break;210 case 6:211 dev_info(adev->dev,212 "benchmark test: %d (GTT to VRAM, buffer size sweep, common modes)\n",213 test_number);214 /* GTT to VRAM, buffer size sweep, common modes */215 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {216 r = amdgpu_benchmark_move(adev, common_modes[i],217 AMDGPU_GEM_DOMAIN_GTT,218 AMDGPU_GEM_DOMAIN_VRAM);219 if (r)220 goto done;221 }222 break;223 case 7:224 dev_info(adev->dev,225 "benchmark test: %d (VRAM to GTT, buffer size sweep, common modes)\n",226 test_number);227 /* VRAM to GTT, buffer size sweep, common modes */228 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {229 r = amdgpu_benchmark_move(adev, common_modes[i],230 AMDGPU_GEM_DOMAIN_VRAM,231 AMDGPU_GEM_DOMAIN_GTT);232 if (r)233 goto done;234 }235 break;236 case 8:237 dev_info(adev->dev,238 "benchmark test: %d (VRAM to VRAM, buffer size sweep, common modes)\n",239 test_number);240 /* VRAM to VRAM, buffer size sweep, common modes */241 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {242 r = amdgpu_benchmark_move(adev, common_modes[i],243 AMDGPU_GEM_DOMAIN_VRAM,244 AMDGPU_GEM_DOMAIN_VRAM);245 if (r)246 goto done;247 }248 break;249 250 default:251 dev_info(adev->dev, "Unknown benchmark %d\n", test_number);252 r = -EINVAL;253 break;254 }255 256done:257 mutex_unlock(&adev->benchmark_mutex);258 259 return r;260}261