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