/* * Copyright 2009 Jerome Glisse. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Jerome Glisse */ #include #include "amdgpu.h" #define AMDGPU_BENCHMARK_ITERATIONS 1024 #define AMDGPU_BENCHMARK_COMMON_MODES_N 17 static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size, uint64_t saddr, uint64_t daddr, int n, s64 *time_ms) { ktime_t stime, etime; struct dma_fence *fence; int i, r; stime = ktime_get(); for (i = 0; i < n; i++) { struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; r = amdgpu_copy_buffer(ring, saddr, daddr, size, NULL, &fence, false, false, false); if (r) goto exit_do_move; r = dma_fence_wait(fence, false); dma_fence_put(fence); if (r) goto exit_do_move; } exit_do_move: etime = ktime_get(); *time_ms = ktime_ms_delta(etime, stime); return r; } static void amdgpu_benchmark_log_results(struct amdgpu_device *adev, int n, unsigned size, s64 time_ms, unsigned sdomain, unsigned ddomain, char *kind) { s64 throughput = (n * (size >> 10)); throughput = div64_s64(throughput, time_ms); dev_info(adev->dev, "amdgpu: %s %u bo moves of %u kB from" " %d to %d in %lld ms, throughput: %lld Mb/s or %lld MB/s\n", kind, n, size >> 10, sdomain, ddomain, time_ms, throughput * 8, throughput); } static int amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size, unsigned sdomain, unsigned ddomain) { struct amdgpu_bo *dobj = NULL; struct amdgpu_bo *sobj = NULL; uint64_t saddr, daddr; s64 time_ms; int r, n; n = AMDGPU_BENCHMARK_ITERATIONS; r = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE, sdomain, &sobj, &saddr, NULL); if (r) goto out_cleanup; r = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE, ddomain, &dobj, &daddr, NULL); if (r) goto out_cleanup; if (adev->mman.buffer_funcs) { r = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n, &time_ms); if (r) goto out_cleanup; else amdgpu_benchmark_log_results(adev, n, size, time_ms, sdomain, ddomain, "dma"); } out_cleanup: /* Check error value now. The value can be overwritten when clean up.*/ if (r < 0) dev_info(adev->dev, "Error while benchmarking BO move.\n"); if (sobj) amdgpu_bo_free_kernel(&sobj, &saddr, NULL); if (dobj) amdgpu_bo_free_kernel(&dobj, &daddr, NULL); return r; } int amdgpu_benchmark(struct amdgpu_device *adev, int test_number) { int i, r; static const int common_modes[AMDGPU_BENCHMARK_COMMON_MODES_N] = { 640 * 480 * 4, 720 * 480 * 4, 800 * 600 * 4, 848 * 480 * 4, 1024 * 768 * 4, 1152 * 768 * 4, 1280 * 720 * 4, 1280 * 800 * 4, 1280 * 854 * 4, 1280 * 960 * 4, 1280 * 1024 * 4, 1440 * 900 * 4, 1400 * 1050 * 4, 1680 * 1050 * 4, 1600 * 1200 * 4, 1920 * 1080 * 4, 1920 * 1200 * 4 }; mutex_lock(&adev->benchmark_mutex); switch (test_number) { case 1: dev_info(adev->dev, "benchmark test: %d (simple test, VRAM to GTT and GTT to VRAM)\n", test_number); /* simple test, VRAM to GTT and GTT to VRAM */ r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT, AMDGPU_GEM_DOMAIN_VRAM); if (r) goto done; r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_GTT); if (r) goto done; break; case 2: dev_info(adev->dev, "benchmark test: %d (simple test, VRAM to VRAM)\n", test_number); /* simple test, VRAM to VRAM */ r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_VRAM); if (r) goto done; break; case 3: dev_info(adev->dev, "benchmark test: %d (GTT to VRAM, buffer size sweep, powers of 2)\n", test_number); /* GTT to VRAM, buffer size sweep, powers of 2 */ for (i = 1; i <= 16384; i <<= 1) { r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT, AMDGPU_GEM_DOMAIN_VRAM); if (r) goto done; } break; case 4: dev_info(adev->dev, "benchmark test: %d (VRAM to GTT, buffer size sweep, powers of 2)\n", test_number); /* VRAM to GTT, buffer size sweep, powers of 2 */ for (i = 1; i <= 16384; i <<= 1) { r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_GTT); if (r) goto done; } break; case 5: dev_info(adev->dev, "benchmark test: %d (VRAM to VRAM, buffer size sweep, powers of 2)\n", test_number); /* VRAM to VRAM, buffer size sweep, powers of 2 */ for (i = 1; i <= 16384; i <<= 1) { r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_VRAM); if (r) goto done; } break; case 6: dev_info(adev->dev, "benchmark test: %d (GTT to VRAM, buffer size sweep, common modes)\n", test_number); /* GTT to VRAM, buffer size sweep, common modes */ for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) { r = amdgpu_benchmark_move(adev, common_modes[i], AMDGPU_GEM_DOMAIN_GTT, AMDGPU_GEM_DOMAIN_VRAM); if (r) goto done; } break; case 7: dev_info(adev->dev, "benchmark test: %d (VRAM to GTT, buffer size sweep, common modes)\n", test_number); /* VRAM to GTT, buffer size sweep, common modes */ for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) { r = amdgpu_benchmark_move(adev, common_modes[i], AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_GTT); if (r) goto done; } break; case 8: dev_info(adev->dev, "benchmark test: %d (VRAM to VRAM, buffer size sweep, common modes)\n", test_number); /* VRAM to VRAM, buffer size sweep, common modes */ for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) { r = amdgpu_benchmark_move(adev, common_modes[i], AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_VRAM); if (r) goto done; } break; default: dev_info(adev->dev, "Unknown benchmark %d\n", test_number); r = -EINVAL; break; } done: mutex_unlock(&adev->benchmark_mutex); return r; }