/* * 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) { unsigned long start_jiffies; unsigned long end_jiffies; struct dma_fence *fence; int i, r; start_jiffies = jiffies; 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; } end_jiffies = jiffies; r = jiffies_to_msecs(end_jiffies - start_jiffies); exit_do_move: return r; } static void amdgpu_benchmark_log_results(int n, unsigned size, unsigned int time, unsigned sdomain, unsigned ddomain, char *kind) { unsigned int throughput = (n * (size >> 10)) / time; DRM_INFO("amdgpu: %s %u bo moves of %u kB from" " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n", kind, n, size >> 10, sdomain, ddomain, time, throughput * 8, throughput); } static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size, unsigned sdomain, unsigned ddomain) { struct amdgpu_bo *dobj = NULL; struct amdgpu_bo *sobj = NULL; struct amdgpu_bo_param bp; uint64_t saddr, daddr; int r, n; int time; memset(&bp, 0, sizeof(bp)); bp.size = size; bp.byte_align = PAGE_SIZE; bp.domain = sdomain; bp.flags = 0; bp.type = ttm_bo_type_kernel; bp.resv = NULL; n = AMDGPU_BENCHMARK_ITERATIONS; r = amdgpu_bo_create(adev, &bp, &sobj); if (r) { goto out_cleanup; } r = amdgpu_bo_reserve(sobj, false); if (unlikely(r != 0)) goto out_cleanup; r = amdgpu_bo_pin(sobj, sdomain); if (r) { amdgpu_bo_unreserve(sobj); goto out_cleanup; } r = amdgpu_ttm_alloc_gart(&sobj->tbo); amdgpu_bo_unreserve(sobj); if (r) { goto out_cleanup; } saddr = amdgpu_bo_gpu_offset(sobj); bp.domain = ddomain; r = amdgpu_bo_create(adev, &bp, &dobj); if (r) { goto out_cleanup; } r = amdgpu_bo_reserve(dobj, false); if (unlikely(r != 0)) goto out_cleanup; r = amdgpu_bo_pin(dobj, ddomain); if (r) { amdgpu_bo_unreserve(sobj); goto out_cleanup; } r = amdgpu_ttm_alloc_gart(&dobj->tbo); amdgpu_bo_unreserve(dobj); if (r) { goto out_cleanup; } daddr = amdgpu_bo_gpu_offset(dobj); if (adev->mman.buffer_funcs) { time = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n); if (time < 0) goto out_cleanup; if (time > 0) amdgpu_benchmark_log_results(n, size, time, sdomain, ddomain, "dma"); } out_cleanup: /* Check error value now. The value can be overwritten when clean up.*/ if (r) { DRM_ERROR("Error while benchmarking BO move.\n"); } if (sobj) { r = amdgpu_bo_reserve(sobj, true); if (likely(r == 0)) { amdgpu_bo_unpin(sobj); amdgpu_bo_unreserve(sobj); } amdgpu_bo_unref(&sobj); } if (dobj) { r = amdgpu_bo_reserve(dobj, true); if (likely(r == 0)) { amdgpu_bo_unpin(dobj); amdgpu_bo_unreserve(dobj); } amdgpu_bo_unref(&dobj); } } void amdgpu_benchmark(struct amdgpu_device *adev, int test_number) { int i; 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 }; switch (test_number) { case 1: /* simple test, VRAM to GTT and GTT to VRAM */ amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT, AMDGPU_GEM_DOMAIN_VRAM); amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_GTT); break; case 2: /* simple test, VRAM to VRAM */ amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_VRAM); break; case 3: /* GTT to VRAM, buffer size sweep, powers of 2 */ for (i = 1; i <= 16384; i <<= 1) amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT, AMDGPU_GEM_DOMAIN_VRAM); break; case 4: /* VRAM to GTT, buffer size sweep, powers of 2 */ for (i = 1; i <= 16384; i <<= 1) amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_GTT); break; case 5: /* VRAM to VRAM, buffer size sweep, powers of 2 */ for (i = 1; i <= 16384; i <<= 1) amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_VRAM); break; case 6: /* GTT to VRAM, buffer size sweep, common modes */ for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) amdgpu_benchmark_move(adev, common_modes[i], AMDGPU_GEM_DOMAIN_GTT, AMDGPU_GEM_DOMAIN_VRAM); break; case 7: /* VRAM to GTT, buffer size sweep, common modes */ for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) amdgpu_benchmark_move(adev, common_modes[i], AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_GTT); break; case 8: /* VRAM to VRAM, buffer size sweep, common modes */ for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) amdgpu_benchmark_move(adev, common_modes[i], AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_DOMAIN_VRAM); break; default: DRM_ERROR("Unknown benchmark\n"); } }