1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2023 Loongson Technology Corporation Limited
*/
#include <drm/drm_debugfs.h>
#include "lsdc_benchmark.h"
#include "lsdc_drv.h"
#include "lsdc_gem.h"
#include "lsdc_ttm.h"
typedef void (*lsdc_copy_proc_t)(struct lsdc_bo *src_bo,
struct lsdc_bo *dst_bo,
unsigned int size,
int n);
static void lsdc_copy_gtt_to_vram_cpu(struct lsdc_bo *src_bo,
struct lsdc_bo *dst_bo,
unsigned int size,
int n)
{
lsdc_bo_kmap(src_bo);
lsdc_bo_kmap(dst_bo);
while (n--)
memcpy_toio(dst_bo->kptr, src_bo->kptr, size);
lsdc_bo_kunmap(src_bo);
lsdc_bo_kunmap(dst_bo);
}
static void lsdc_copy_vram_to_gtt_cpu(struct lsdc_bo *src_bo,
struct lsdc_bo *dst_bo,
unsigned int size,
int n)
{
lsdc_bo_kmap(src_bo);
lsdc_bo_kmap(dst_bo);
while (n--)
memcpy_fromio(dst_bo->kptr, src_bo->kptr, size);
lsdc_bo_kunmap(src_bo);
lsdc_bo_kunmap(dst_bo);
}
static void lsdc_copy_gtt_to_gtt_cpu(struct lsdc_bo *src_bo,
struct lsdc_bo *dst_bo,
unsigned int size,
int n)
{
lsdc_bo_kmap(src_bo);
lsdc_bo_kmap(dst_bo);
while (n--)
memcpy(dst_bo->kptr, src_bo->kptr, size);
lsdc_bo_kunmap(src_bo);
lsdc_bo_kunmap(dst_bo);
}
static void lsdc_benchmark_copy(struct lsdc_device *ldev,
unsigned int size,
unsigned int n,
u32 src_domain,
u32 dst_domain,
lsdc_copy_proc_t copy_proc,
struct drm_printer *p)
{
struct drm_device *ddev = &ldev->base;
struct lsdc_bo *src_bo;
struct lsdc_bo *dst_bo;
unsigned long start_jiffies;
unsigned long end_jiffies;
unsigned int throughput;
unsigned int time;
src_bo = lsdc_bo_create_kernel_pinned(ddev, src_domain, size);
dst_bo = lsdc_bo_create_kernel_pinned(ddev, dst_domain, size);
start_jiffies = jiffies;
copy_proc(src_bo, dst_bo, size, n);
end_jiffies = jiffies;
lsdc_bo_free_kernel_pinned(src_bo);
lsdc_bo_free_kernel_pinned(dst_bo);
time = jiffies_to_msecs(end_jiffies - start_jiffies);
throughput = (n * (size >> 10)) / time;
drm_printf(p,
"Copy bo of %uKiB %u times from %s to %s in %ums: %uMB/s\n",
size >> 10, n,
lsdc_domain_to_str(src_domain),
lsdc_domain_to_str(dst_domain),
time, throughput);
}
int lsdc_show_benchmark_copy(struct lsdc_device *ldev, struct drm_printer *p)
{
unsigned int buffer_size = 1920 * 1080 * 4;
unsigned int iteration = 60;
lsdc_benchmark_copy(ldev,
buffer_size,
iteration,
LSDC_GEM_DOMAIN_GTT,
LSDC_GEM_DOMAIN_GTT,
lsdc_copy_gtt_to_gtt_cpu,
p);
lsdc_benchmark_copy(ldev,
buffer_size,
iteration,
LSDC_GEM_DOMAIN_GTT,
LSDC_GEM_DOMAIN_VRAM,
lsdc_copy_gtt_to_vram_cpu,
p);
lsdc_benchmark_copy(ldev,
buffer_size,
iteration,
LSDC_GEM_DOMAIN_VRAM,
LSDC_GEM_DOMAIN_GTT,
lsdc_copy_vram_to_gtt_cpu,
p);
return 0;
}
|
