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/*

 * 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 

#include "radeon_reg.h"

#include "radeon.h"

#define RADEON_BENCHMARK_COPY_BLIT 1

#define RADEON_BENCHMARK_COPY_DMA  0

#define RADEON_BENCHMARK_ITERATIONS 1024

#define RADEON_BENCHMARK_COMMON_MODES_N 17

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++) {

		switch (flag) {

		case RADEON_BENCHMARK_COPY_DMA:

			fence = radeon_copy_dma(rdev, saddr, daddr,

					    size / RADEON_GPU_PAGE_SIZE,

						NULL);

			break;

		case RADEON_BENCHMARK_COPY_BLIT:

			fence = radeon_copy_blit(rdev, saddr, daddr,

					     size / RADEON_GPU_PAGE_SIZE,

						 NULL);

			break;

		default:

			DRM_ERROR("Unknown copy method\n");

			return -EINVAL;

		}

		if (IS_ERR(fence))

			return PTR_ERR(fence);

		r = radeon_fence_wait(fence, false);

		radeon_fence_unref(&fence);

		if (r)

			return r;

	}

	end_jiffies = jiffies;

	return jiffies_to_msecs(end_jiffies - start_jiffies);

}

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;

	int time;

    ENTER();

	n = RADEON_BENCHMARK_ITERATIONS;

	r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, 0, NULL, NULL, &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, 0, NULL, NULL, &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;

	}

    dbgprintf("done\n");

	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");

	}

	if (rdev->asic->copy.blit) {

	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");

	}

    LEAVE();

}

void radeon_benchmark(struct radeon_device *rdev, int test_number)

{

	int i;

	int common_modes[RADEON_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 */

		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);

		break;

	case 2:

		/* simple test, VRAM to VRAM */

		radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,

				      RADEON_GEM_DOMAIN_VRAM);

		break;

	case 3:

		/* GTT to VRAM, buffer size sweep, powers of 2 */

		for (i = 1; i <= 16384; i <<= 1)

			radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,

					      RADEON_GEM_DOMAIN_GTT,

					      RADEON_GEM_DOMAIN_VRAM);

		break;

	case 4:

		/* VRAM to GTT, buffer size sweep, powers of 2 */

		for (i = 1; i <= 16384; i <<= 1)

			radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,

					      RADEON_GEM_DOMAIN_VRAM,

					      RADEON_GEM_DOMAIN_GTT);

		break;

	case 5:

		/* VRAM to VRAM, buffer size sweep, powers of 2 */

		for (i = 1; i <= 16384; i <<= 1)

			radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,

					      RADEON_GEM_DOMAIN_VRAM,

					      RADEON_GEM_DOMAIN_VRAM);

		break;

	case 6:

		/* GTT to VRAM, buffer size sweep, common modes */

		for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)

			radeon_benchmark_move(rdev, common_modes[i],

					      RADEON_GEM_DOMAIN_GTT,

                 RADEON_GEM_DOMAIN_VRAM);

		break;

	case 7:

		/* VRAM to GTT, buffer size sweep, common modes */

		for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)

			radeon_benchmark_move(rdev, common_modes[i],

					      RADEON_GEM_DOMAIN_VRAM,

                 RADEON_GEM_DOMAIN_GTT);

		break;

	case 8:

		/* VRAM to VRAM, buffer size sweep, common modes */

		for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)

			radeon_benchmark_move(rdev, common_modes[i],

					      RADEON_GEM_DOMAIN_VRAM,

                 RADEON_GEM_DOMAIN_VRAM);

		break;

	default:

		DRM_ERROR("Unknown benchmark\n");

	}

}