/* * 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/amdgpu_drm.h>#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 amdgpu_fence *fence = NULL;	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);		if (r)			goto exit_do_move;		r = amdgpu_fence_wait(fence, false);		if (r)			goto exit_do_move;		amdgpu_fence_unref(&fence);	}	end_jiffies = jiffies;	r = jiffies_to_msecs(end_jiffies - start_jiffies); exit_do_move:	if (fence)		amdgpu_fence_unref(&fence);	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;	uint64_t saddr, daddr;	int r, n;	int time; 	n = AMDGPU_BENCHMARK_ITERATIONS;	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, sdomain, 0, NULL, &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, &saddr);	amdgpu_bo_unreserve(sobj);	if (r) {		goto out_cleanup;	}	r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, ddomain, 0, NULL, &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, &daddr);	amdgpu_bo_unreserve(dobj);	if (r) {		goto out_cleanup;	} 	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:	if (sobj) {		r = amdgpu_bo_reserve(sobj, false);		if (likely(r == 0)) {			amdgpu_bo_unpin(sobj);			amdgpu_bo_unreserve(sobj);		}		amdgpu_bo_unref(&sobj);	}	if (dobj) {		r = amdgpu_bo_reserve(dobj, false);		if (likely(r == 0)) {			amdgpu_bo_unpin(dobj);			amdgpu_bo_unreserve(dobj);		}		amdgpu_bo_unref(&dobj);	} 	if (r) {		DRM_ERROR("Error while benchmarking BO move.\n");	}} void amdgpu_benchmark(struct amdgpu_device *adev, int test_number){	int i;	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");	}}