134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2023 Loongson Technology Corporation Limited
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*/
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#include <drm/drm_debugfs.h>
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#include "lsdc_benchmark.h"
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#include "lsdc_drv.h"
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#include "lsdc_gem.h"
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#include "lsdc_ttm.h"
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typedef void (*lsdc_copy_proc_t)(struct lsdc_bo *src_bo,
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struct lsdc_bo *dst_bo,
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unsigned int size,
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int n);
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static void lsdc_copy_gtt_to_vram_cpu(struct lsdc_bo *src_bo,
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struct lsdc_bo *dst_bo,
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unsigned int size,
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int n)
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{
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lsdc_bo_kmap(src_bo);
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lsdc_bo_kmap(dst_bo);
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while (n--)
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memcpy_toio(dst_bo->kptr, src_bo->kptr, size);
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lsdc_bo_kunmap(src_bo);
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lsdc_bo_kunmap(dst_bo);
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}
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static void lsdc_copy_vram_to_gtt_cpu(struct lsdc_bo *src_bo,
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struct lsdc_bo *dst_bo,
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unsigned int size,
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int n)
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{
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lsdc_bo_kmap(src_bo);
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lsdc_bo_kmap(dst_bo);
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while (n--)
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memcpy_fromio(dst_bo->kptr, src_bo->kptr, size);
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lsdc_bo_kunmap(src_bo);
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lsdc_bo_kunmap(dst_bo);
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}
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static void lsdc_copy_gtt_to_gtt_cpu(struct lsdc_bo *src_bo,
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struct lsdc_bo *dst_bo,
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unsigned int size,
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int n)
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{
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lsdc_bo_kmap(src_bo);
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lsdc_bo_kmap(dst_bo);
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while (n--)
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memcpy(dst_bo->kptr, src_bo->kptr, size);
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lsdc_bo_kunmap(src_bo);
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lsdc_bo_kunmap(dst_bo);
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}
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static void lsdc_benchmark_copy(struct lsdc_device *ldev,
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unsigned int size,
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unsigned int n,
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u32 src_domain,
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u32 dst_domain,
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lsdc_copy_proc_t copy_proc,
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struct drm_printer *p)
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{
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struct drm_device *ddev = &ldev->base;
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struct lsdc_bo *src_bo;
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struct lsdc_bo *dst_bo;
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unsigned long start_jiffies;
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unsigned long end_jiffies;
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unsigned int throughput;
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unsigned int time;
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src_bo = lsdc_bo_create_kernel_pinned(ddev, src_domain, size);
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dst_bo = lsdc_bo_create_kernel_pinned(ddev, dst_domain, size);
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start_jiffies = jiffies;
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copy_proc(src_bo, dst_bo, size, n);
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end_jiffies = jiffies;
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lsdc_bo_free_kernel_pinned(src_bo);
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lsdc_bo_free_kernel_pinned(dst_bo);
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time = jiffies_to_msecs(end_jiffies - start_jiffies);
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throughput = (n * (size >> 10)) / time;
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drm_printf(p,
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"Copy bo of %uKiB %u times from %s to %s in %ums: %uMB/s\n",
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size >> 10, n,
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lsdc_domain_to_str(src_domain),
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lsdc_domain_to_str(dst_domain),
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time, throughput);
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}
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int lsdc_show_benchmark_copy(struct lsdc_device *ldev, struct drm_printer *p)
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{
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unsigned int buffer_size = 1920 * 1080 * 4;
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unsigned int iteration = 60;
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lsdc_benchmark_copy(ldev,
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buffer_size,
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iteration,
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LSDC_GEM_DOMAIN_GTT,
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LSDC_GEM_DOMAIN_GTT,
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lsdc_copy_gtt_to_gtt_cpu,
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p);
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lsdc_benchmark_copy(ldev,
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buffer_size,
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iteration,
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LSDC_GEM_DOMAIN_GTT,
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LSDC_GEM_DOMAIN_VRAM,
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lsdc_copy_gtt_to_vram_cpu,
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p);
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lsdc_benchmark_copy(ldev,
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buffer_size,
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iteration,
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LSDC_GEM_DOMAIN_VRAM,
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LSDC_GEM_DOMAIN_GTT,
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lsdc_copy_vram_to_gtt_cpu,
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p);
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return 0;
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}
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