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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
#include "llvm/Config/llvm-config.h"
#ifdef HAS_GL_EGL
#include "EGL/egl.h"
#include "EGL/eglext.h"
#endif
#include "cl_platform_id.h"
#include "cl_device_id.h"
#include "cl_internals.h"
#include "CL/cl.h"
#include "cl_utils.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
/* This extension should be common for all the intel GPU platform.
Every device may have its own additional externsions. */
static struct cl_extensions intel_platform_extensions =
{
{
#define DECL_EXT(name) \
{(struct cl_extension_base){.ext_id = cl_##name##_ext_id, .ext_name = "cl_" #name, .ext_enabled = 0}},
DECL_ALL_EXTENSIONS
},
#undef DECL_EXT
{""}
};
void check_basic_extension(cl_extensions_t *extensions)
{
int id;
for(id = BASE_EXT_START_ID; id <= BASE_EXT_END_ID; id++)
if (id != EXT_ID(khr_fp64))
extensions->extensions[id].base.ext_enabled = 1;
}
void check_opt1_extension(cl_extensions_t *extensions)
{
int id;
for(id = OPT1_EXT_START_ID; id <= OPT1_EXT_END_ID; id++)
{
if (id == EXT_ID(khr_icd))
extensions->extensions[id].base.ext_enabled = 1;
#if LLVM_VERSION_MAJOR * 10 + LLVM_VERSION_MINOR >= 35
if (id == EXT_ID(khr_spir))
extensions->extensions[id].base.ext_enabled = 1;
#endif
if (id == EXT_ID(khr_image2d_from_buffer))
extensions->extensions[id].base.ext_enabled = 1;
if (id == EXT_ID(khr_3d_image_writes))
extensions->extensions[id].base.ext_enabled = 1;
}
}
void
check_gl_extension(cl_extensions_t *extensions) {
#if defined(HAS_GL_EGL)
int id;
/* For now, we only support cl_khr_gl_sharing. */
for(id = GL_EXT_START_ID; id <= GL_EXT_END_ID; id++)
if (id == EXT_ID(khr_gl_sharing))
extensions->extensions[id].base.ext_enabled = 1;
#endif
}
void
check_intel_extension(cl_extensions_t *extensions)
{
int id;
for(id = INTEL_EXT_START_ID; id <= INTEL_EXT_END_ID; id++)
if(id != EXT_ID(intel_motion_estimation))
extensions->extensions[id].base.ext_enabled = 1;
}
void
process_extension_str(cl_extensions_t *extensions)
{
int str_max = sizeof(extensions->ext_str);
int str_offset = 0;
int id;
memset(extensions->ext_str, 0, sizeof(extensions->ext_str));
for(id = 0; id < cl_khr_extension_id_max; id++)
{
if (extensions->extensions[id].base.ext_enabled) {
int copy_len;
char *ext_name = extensions->extensions[id].base.ext_name;
if (str_offset + 1 >= str_max)
return;
if (str_offset != 0)
extensions->ext_str[str_offset - 1] = ' ';
copy_len = (strlen(ext_name) + 1 + str_offset) < str_max
? (strlen(ext_name) + 1) : (str_max - str_offset - 1);
strncpy(&extensions->ext_str[str_offset],
extensions->extensions[id].base.ext_name, copy_len);
str_offset += copy_len;
}
}
}
LOCAL void
cl_intel_platform_get_default_extension(cl_device_id device)
{
cl_platform_id pf = device->platform;
memcpy((char*)device->extensions,
pf->internal_extensions->ext_str, sizeof(device->extensions));
device->extensions_sz = strlen(pf->internal_extensions->ext_str) + 1;
}
LOCAL void
cl_intel_platform_enable_extension(cl_device_id device, uint32_t ext)
{
int id;
char* ext_str = NULL;
cl_platform_id pf = device->platform;
assert(pf);
for(id = BASE_EXT_START_ID; id < cl_khr_extension_id_max; id++) {
if (id == ext) {
if (!pf->internal_extensions->extensions[id].base.ext_enabled)
ext_str = pf->internal_extensions->extensions[id].base.ext_name;
break;
}
}
/* already enabled, skip. */
if (ext_str && strstr(device->extensions, ext_str))
ext_str = NULL;
if (ext_str) {
if (device->extensions_sz <= 1) {
memcpy((char*)device->extensions, ext_str, strlen(ext_str));
device->extensions_sz = strlen(ext_str) + 1;
} else {
assert(device->extensions_sz + 1 + strlen(ext_str) < EXTENSTION_LENGTH);
*(char*)(device->extensions + device->extensions_sz - 1) = ' ';
memcpy((char*)device->extensions + device->extensions_sz, ext_str, strlen(ext_str));
device->extensions_sz = device->extensions_sz + strlen(ext_str) + 1;
}
*(char*)(device->extensions + device->extensions_sz - 1) = 0;
}
}
LOCAL void
cl_intel_platform_extension_init(cl_platform_id intel_platform)
{
static int ext_initialized = 0;
/* The EXT should be only inited once. */
(void) ext_initialized;
assert(!ext_initialized);
check_basic_extension(&intel_platform_extensions);
check_opt1_extension(&intel_platform_extensions);
check_gl_extension(&intel_platform_extensions);
check_intel_extension(&intel_platform_extensions);
process_extension_str(&intel_platform_extensions);
ext_initialized = 1;
intel_platform->internal_extensions = &intel_platform_extensions;
intel_platform->extensions = intel_platform_extensions.ext_str;
intel_platform->extensions_sz = strlen(intel_platform->extensions) + 1;
return;
}
|
