| /* |
| * 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 <drm/drmP.h> |
| #include <drm/radeon_drm.h> |
| #include "radeon_reg.h" |
| #include "radeon.h" |
| |
| #define RADEON_BENCHMARK_COPY_BLIT 1 |
| #define RADEON_BENCHMARK_COPY_DMA 0 |
| |
| #define RADEON_BENCHMARK_ITERATIONS 1024 |
| |
| static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size, |
| uint64_t saddr, uint64_t daddr, |
| int flag, int n) |
| { |
| unsigned long start_jiffies; |
| unsigned long end_jiffies; |
| struct radeon_fence *fence = NULL; |
| int i, r; |
| |
| start_jiffies = jiffies; |
| for (i = 0; i < n; i++) { |
| r = radeon_fence_create(rdev, &fence); |
| if (r) |
| return r; |
| |
| switch (flag) { |
| case RADEON_BENCHMARK_COPY_DMA: |
| r = radeon_copy_dma(rdev, saddr, daddr, |
| size / RADEON_GPU_PAGE_SIZE, |
| fence); |
| break; |
| case RADEON_BENCHMARK_COPY_BLIT: |
| r = radeon_copy_blit(rdev, saddr, daddr, |
| size / RADEON_GPU_PAGE_SIZE, |
| fence); |
| break; |
| default: |
| DRM_ERROR("Unknown copy method\n"); |
| r = -EINVAL; |
| } |
| if (r) |
| goto exit_do_move; |
| r = radeon_fence_wait(fence, false); |
| if (r) |
| goto exit_do_move; |
| radeon_fence_unref(&fence); |
| } |
| end_jiffies = jiffies; |
| r = jiffies_to_msecs(end_jiffies - start_jiffies); |
| |
| exit_do_move: |
| if (fence) |
| radeon_fence_unref(&fence); |
| return r; |
| } |
| |
| |
| static void radeon_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("radeon: %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 radeon_benchmark_move(struct radeon_device *rdev, unsigned size, |
| unsigned sdomain, unsigned ddomain) |
| { |
| struct radeon_bo *dobj = NULL; |
| struct radeon_bo *sobj = NULL; |
| uint64_t saddr, daddr; |
| int r, n; |
| unsigned int time; |
| |
| n = RADEON_BENCHMARK_ITERATIONS; |
| r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, &sobj); |
| if (r) { |
| goto out_cleanup; |
| } |
| r = radeon_bo_reserve(sobj, false); |
| if (unlikely(r != 0)) |
| goto out_cleanup; |
| r = radeon_bo_pin(sobj, sdomain, &saddr); |
| radeon_bo_unreserve(sobj); |
| if (r) { |
| goto out_cleanup; |
| } |
| r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, &dobj); |
| if (r) { |
| goto out_cleanup; |
| } |
| r = radeon_bo_reserve(dobj, false); |
| if (unlikely(r != 0)) |
| goto out_cleanup; |
| r = radeon_bo_pin(dobj, ddomain, &daddr); |
| radeon_bo_unreserve(dobj); |
| if (r) { |
| goto out_cleanup; |
| } |
| |
| /* r100 doesn't have dma engine so skip the test */ |
| if (rdev->asic->copy_dma) { |
| time = radeon_benchmark_do_move(rdev, size, saddr, daddr, |
| RADEON_BENCHMARK_COPY_DMA, n); |
| if (time < 0) |
| goto out_cleanup; |
| if (time > 0) |
| radeon_benchmark_log_results(n, size, time, |
| sdomain, ddomain, "dma"); |
| } |
| |
| time = radeon_benchmark_do_move(rdev, size, saddr, daddr, |
| RADEON_BENCHMARK_COPY_BLIT, n); |
| if (time < 0) |
| goto out_cleanup; |
| if (time > 0) |
| radeon_benchmark_log_results(n, size, time, |
| sdomain, ddomain, "blit"); |
| |
| out_cleanup: |
| if (sobj) { |
| r = radeon_bo_reserve(sobj, false); |
| if (likely(r == 0)) { |
| radeon_bo_unpin(sobj); |
| radeon_bo_unreserve(sobj); |
| } |
| radeon_bo_unref(&sobj); |
| } |
| if (dobj) { |
| r = radeon_bo_reserve(dobj, false); |
| if (likely(r == 0)) { |
| radeon_bo_unpin(dobj); |
| radeon_bo_unreserve(dobj); |
| } |
| radeon_bo_unref(&dobj); |
| } |
| |
| if (r) { |
| DRM_ERROR("Error while benchmarking BO move.\n"); |
| } |
| } |
| |
| void radeon_benchmark(struct radeon_device *rdev) |
| { |
| radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT, |
| RADEON_GEM_DOMAIN_VRAM); |
| radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM, |
| RADEON_GEM_DOMAIN_GTT); |
| } |