250 lines
		
	
	
		
			6.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			250 lines
		
	
	
		
			6.8 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/radeon_drm.h>
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| #include "radeon_reg.h"
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| #include "radeon.h"
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| 
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| #define RADEON_BENCHMARK_COPY_BLIT 1
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| #define RADEON_BENCHMARK_COPY_DMA  0
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| 
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| #define RADEON_BENCHMARK_ITERATIONS 1024
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| #define RADEON_BENCHMARK_COMMON_MODES_N 17
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| 
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| static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
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| 				    uint64_t saddr, uint64_t daddr,
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| 				    int flag, int n,
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| 				    struct reservation_object *resv)
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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 radeon_fence *fence = NULL;
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| 	int i, r;
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| 
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| 	start_jiffies = jiffies;
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| 	for (i = 0; i < n; i++) {
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| 		switch (flag) {
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| 		case RADEON_BENCHMARK_COPY_DMA:
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| 			fence = radeon_copy_dma(rdev, saddr, daddr,
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| 						size / RADEON_GPU_PAGE_SIZE,
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| 						resv);
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| 			break;
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| 		case RADEON_BENCHMARK_COPY_BLIT:
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| 			fence = radeon_copy_blit(rdev, saddr, daddr,
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| 						 size / RADEON_GPU_PAGE_SIZE,
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| 						 resv);
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| 			break;
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| 		default:
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| 			DRM_ERROR("Unknown copy method\n");
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| 			return -EINVAL;
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| 		}
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| 		if (IS_ERR(fence))
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| 			return PTR_ERR(fence);
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| 
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| 		r = radeon_fence_wait(fence, false);
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| 		radeon_fence_unref(&fence);
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| 		if (r)
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| 			return r;
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| 	}
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| 	end_jiffies = jiffies;
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| 	return jiffies_to_msecs(end_jiffies - start_jiffies);
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| }
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| 
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| 
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| static void radeon_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("radeon: %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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| 
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| static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
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| 				  unsigned sdomain, unsigned ddomain)
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| {
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| 	struct radeon_bo *dobj = NULL;
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| 	struct radeon_bo *sobj = NULL;
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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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| 
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| 	n = RADEON_BENCHMARK_ITERATIONS;
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| 	r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, 0, NULL, NULL, &sobj);
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| 	if (r) {
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| 		goto out_cleanup;
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| 	}
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| 	r = radeon_bo_reserve(sobj, false);
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| 	if (unlikely(r != 0))
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| 		goto out_cleanup;
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| 	r = radeon_bo_pin(sobj, sdomain, &saddr);
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| 	radeon_bo_unreserve(sobj);
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| 	if (r) {
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| 		goto out_cleanup;
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| 	}
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| 	r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, 0, NULL, NULL, &dobj);
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| 	if (r) {
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| 		goto out_cleanup;
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| 	}
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| 	r = radeon_bo_reserve(dobj, false);
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| 	if (unlikely(r != 0))
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| 		goto out_cleanup;
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| 	r = radeon_bo_pin(dobj, ddomain, &daddr);
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| 	radeon_bo_unreserve(dobj);
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| 	if (r) {
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| 		goto out_cleanup;
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| 	}
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| 
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| 	if (rdev->asic->copy.dma) {
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| 		time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
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| 						RADEON_BENCHMARK_COPY_DMA, n,
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| 						dobj->tbo.resv);
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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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| 			radeon_benchmark_log_results(n, size, time,
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| 						     sdomain, ddomain, "dma");
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| 	}
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| 
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| 	if (rdev->asic->copy.blit) {
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| 		time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
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| 						RADEON_BENCHMARK_COPY_BLIT, n,
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| 						dobj->tbo.resv);
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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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| 			radeon_benchmark_log_results(n, size, time,
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| 						     sdomain, ddomain, "blit");
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| 	}
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| 
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| out_cleanup:
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| 	if (sobj) {
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| 		r = radeon_bo_reserve(sobj, false);
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| 		if (likely(r == 0)) {
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| 			radeon_bo_unpin(sobj);
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| 			radeon_bo_unreserve(sobj);
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| 		}
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| 		radeon_bo_unref(&sobj);
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| 	}
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| 	if (dobj) {
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| 		r = radeon_bo_reserve(dobj, false);
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| 		if (likely(r == 0)) {
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| 			radeon_bo_unpin(dobj);
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| 			radeon_bo_unreserve(dobj);
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| 		}
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| 		radeon_bo_unref(&dobj);
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| 	}
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| 
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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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| }
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| 
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| void radeon_benchmark(struct radeon_device *rdev, int test_number)
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| {
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| 	int i;
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| 	int common_modes[RADEON_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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| 
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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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| 		radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
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| 				      RADEON_GEM_DOMAIN_VRAM);
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| 		radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
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| 				      RADEON_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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| 		radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
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| 				      RADEON_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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| 			radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
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| 					      RADEON_GEM_DOMAIN_GTT,
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| 					      RADEON_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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| 			radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
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| 					      RADEON_GEM_DOMAIN_VRAM,
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| 					      RADEON_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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| 			radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
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| 					      RADEON_GEM_DOMAIN_VRAM,
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| 					      RADEON_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 < RADEON_BENCHMARK_COMMON_MODES_N; i++)
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| 			radeon_benchmark_move(rdev, common_modes[i],
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| 					      RADEON_GEM_DOMAIN_GTT,
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| 					      RADEON_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 < RADEON_BENCHMARK_COMMON_MODES_N; i++)
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| 			radeon_benchmark_move(rdev, common_modes[i],
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| 					      RADEON_GEM_DOMAIN_VRAM,
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| 					      RADEON_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 < RADEON_BENCHMARK_COMMON_MODES_N; i++)
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| 			radeon_benchmark_move(rdev, common_modes[i],
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| 					      RADEON_GEM_DOMAIN_VRAM,
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| 					      RADEON_GEM_DOMAIN_VRAM);
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| 		break;
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| 
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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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