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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
|
// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "platform.h"
using sycl::float16;
using sycl::float8;
using sycl::float4;
using sycl::float3;
using sycl::float2;
using sycl::int16;
using sycl::int8;
using sycl::int4;
using sycl::int3;
using sycl::int2;
using sycl::uint16;
using sycl::uint8;
using sycl::uint4;
using sycl::uint3;
using sycl::uint2;
using sycl::uchar16;
using sycl::uchar8;
using sycl::uchar4;
using sycl::uchar3;
using sycl::uchar2;
using sycl::ushort16;
using sycl::ushort8;
using sycl::ushort4;
using sycl::ushort3;
using sycl::ushort2;
#ifdef __SYCL_DEVICE_ONLY__
#define GLOBAL __attribute__((opencl_global))
#define LOCAL __attribute__((opencl_local))
SYCL_EXTERNAL extern int work_group_reduce_add(int x);
SYCL_EXTERNAL extern float work_group_reduce_min(float x);
SYCL_EXTERNAL extern float work_group_reduce_max(float x);
SYCL_EXTERNAL extern float atomic_min(volatile GLOBAL float *p, float val);
SYCL_EXTERNAL extern float atomic_min(volatile LOCAL float *p, float val);
SYCL_EXTERNAL extern float atomic_max(volatile GLOBAL float *p, float val);
SYCL_EXTERNAL extern float atomic_max(volatile LOCAL float *p, float val);
SYCL_EXTERNAL extern "C" unsigned int intel_sub_group_ballot(bool valid);
SYCL_EXTERNAL extern "C" void __builtin_IB_assume_uniform(void *p);
// Load message caching control
enum LSC_LDCC {
LSC_LDCC_DEFAULT,
LSC_LDCC_L1UC_L3UC, // Override to L1 uncached and L3 uncached
LSC_LDCC_L1UC_L3C, // Override to L1 uncached and L3 cached
LSC_LDCC_L1C_L3UC, // Override to L1 cached and L3 uncached
LSC_LDCC_L1C_L3C, // Override to L1 cached and L3 cached
LSC_LDCC_L1S_L3UC, // Override to L1 streaming load and L3 uncached
LSC_LDCC_L1S_L3C, // Override to L1 streaming load and L3 cached
LSC_LDCC_L1IAR_L3C, // Override to L1 invalidate-after-read, and L3 cached
};
// Store message caching control (also used for atomics)
enum LSC_STCC {
LSC_STCC_DEFAULT,
LSC_STCC_L1UC_L3UC, // Override to L1 uncached and L3 uncached
LSC_STCC_L1UC_L3WB, // Override to L1 uncached and L3 written back
LSC_STCC_L1WT_L3UC, // Override to L1 written through and L3 uncached
LSC_STCC_L1WT_L3WB, // Override to L1 written through and L3 written back
LSC_STCC_L1S_L3UC, // Override to L1 streaming and L3 uncached
LSC_STCC_L1S_L3WB, // Override to L1 streaming and L3 written back
LSC_STCC_L1WB_L3WB, // Override to L1 written through and L3 written back
};
///////////////////////////////////////////////////////////////////////
// LSC Loads
///////////////////////////////////////////////////////////////////////
SYCL_EXTERNAL /* extern "C" */ uint32_t __builtin_IB_lsc_load_global_uchar_to_uint (const GLOBAL uint8_t *base, int elemOff, enum LSC_LDCC cacheOpt); //D8U32
SYCL_EXTERNAL /* extern "C" */ uint32_t __builtin_IB_lsc_load_global_ushort_to_uint(const GLOBAL uint16_t *base, int elemOff, enum LSC_LDCC cacheOpt); //D16U32
SYCL_EXTERNAL /* extern "C" */ uint32_t __builtin_IB_lsc_load_global_uint (const GLOBAL uint32_t *base, int elemOff, enum LSC_LDCC cacheOpt); //D32V1
SYCL_EXTERNAL /* extern "C" */ sycl::uint2 __builtin_IB_lsc_load_global_uint2 (const GLOBAL sycl::uint2 *base, int elemOff, enum LSC_LDCC cacheOpt); //D32V2
SYCL_EXTERNAL /* extern "C" */ sycl::uint3 __builtin_IB_lsc_load_global_uint3 (const GLOBAL sycl::uint3 *base, int elemOff, enum LSC_LDCC cacheOpt); //D32V3
SYCL_EXTERNAL /* extern "C" */ sycl::uint4 __builtin_IB_lsc_load_global_uint4 (const GLOBAL sycl::uint4 *base, int elemOff, enum LSC_LDCC cacheOpt); //D32V4
SYCL_EXTERNAL /* extern "C" */ sycl::uint8 __builtin_IB_lsc_load_global_uint8 (const GLOBAL sycl::uint8 *base, int elemOff, enum LSC_LDCC cacheOpt); //D32V8
SYCL_EXTERNAL /* extern "C" */ uint64_t __builtin_IB_lsc_load_global_ulong (const GLOBAL uint64_t *base, int elemOff, enum LSC_LDCC cacheOpt); //D64V1
SYCL_EXTERNAL /* extern "C" */ sycl::ulong2 __builtin_IB_lsc_load_global_ulong2 (const GLOBAL sycl::ulong2 *base, int elemOff, enum LSC_LDCC cacheOpt); //D64V2
SYCL_EXTERNAL /* extern "C" */ sycl::ulong3 __builtin_IB_lsc_load_global_ulong3 (const GLOBAL sycl::ulong3 *base, int elemOff, enum LSC_LDCC cacheOpt); //D64V3
SYCL_EXTERNAL /* extern "C" */ sycl::ulong4 __builtin_IB_lsc_load_global_ulong4 (const GLOBAL sycl::ulong4 *base, int elemOff, enum LSC_LDCC cacheOpt); //D64V4
SYCL_EXTERNAL /* extern "C" */ sycl::ulong8 __builtin_IB_lsc_load_global_ulong8 (const GLOBAL sycl::ulong8 *base, int elemOff, enum LSC_LDCC cacheOpt); //D64V8
// global address space
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_uchar_from_uint (GLOBAL uint8_t *base, int immElemOff, uint32_t val, enum LSC_STCC cacheOpt); //D8U32
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_ushort_from_uint(GLOBAL uint16_t *base, int immElemOff, uint32_t val, enum LSC_STCC cacheOpt); //D16U32
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_uint (GLOBAL uint32_t *base, int immElemOff, uint32_t val, enum LSC_STCC cacheOpt); //D32V1
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_uint2 (GLOBAL sycl::uint2 *base, int immElemOff, sycl::uint2 val, enum LSC_STCC cacheOpt); //D32V2
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_uint3 (GLOBAL sycl::uint3 *base, int immElemOff, sycl::uint3 val, enum LSC_STCC cacheOpt); //D32V3
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_uint4 (GLOBAL sycl::uint4 *base, int immElemOff, sycl::uint4 val, enum LSC_STCC cacheOpt); //D32V4
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_uint8 (GLOBAL sycl::uint8 *base, int immElemOff, sycl::uint8 val, enum LSC_STCC cacheOpt); //D32V8
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_ulong (GLOBAL uint64_t *base, int immElemOff, uint64_t val, enum LSC_STCC cacheOpt); //D64V1
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_ulong2 (GLOBAL sycl::ulong2 *base, int immElemOff, sycl::ulong2 val, enum LSC_STCC cacheOpt); //D64V2
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_ulong3 (GLOBAL sycl::ulong3 *base, int immElemOff, sycl::ulong3 val, enum LSC_STCC cacheOpt); //D64V3
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_ulong4 (GLOBAL sycl::ulong4 *base, int immElemOff, sycl::ulong4 val, enum LSC_STCC cacheOpt); //D64V4
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_store_global_ulong8 (GLOBAL sycl::ulong8 *base, int immElemOff, sycl::ulong8 val, enum LSC_STCC cacheOpt); //D64V8
///////////////////////////////////////////////////////////////////////
// prefetching
///////////////////////////////////////////////////////////////////////
//
// LSC Pre-Fetch Load functions with CacheControls
// global address space
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_uchar (const GLOBAL uint8_t *base, int immElemOff, enum LSC_LDCC cacheOpt); //D8U32
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_ushort(const GLOBAL uint16_t *base, int immElemOff, enum LSC_LDCC cacheOpt); //D16U32
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_uint (const GLOBAL uint32_t *base, int immElemOff, enum LSC_LDCC cacheOpt); //D32V1
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_uint2 (const GLOBAL sycl::uint2 *base, int immElemOff, enum LSC_LDCC cacheOpt); //D32V2
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_uint3 (const GLOBAL sycl::uint3 *base, int immElemOff, enum LSC_LDCC cacheOpt); //D32V3
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_uint4 (const GLOBAL sycl::uint4 *base, int immElemOff, enum LSC_LDCC cacheOpt); //D32V4
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_uint8 (const GLOBAL sycl::uint8 *base, int immElemOff, enum LSC_LDCC cacheOpt); //D32V8
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_ulong (const GLOBAL uint64_t *base, int immElemOff, enum LSC_LDCC cacheOpt); //D64V1
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_ulong2(const GLOBAL sycl::ulong2 *base, int immElemOff, enum LSC_LDCC cacheOpt); //D64V2
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_ulong3(const GLOBAL sycl::ulong3 *base, int immElemOff, enum LSC_LDCC cacheOpt); //D64V3
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_ulong4(const GLOBAL sycl::ulong4 *base, int immElemOff, enum LSC_LDCC cacheOpt); //D64V4
SYCL_EXTERNAL extern "C" void __builtin_IB_lsc_prefetch_global_ulong8(const GLOBAL sycl::ulong8 *base, int immElemOff, enum LSC_LDCC cacheOpt); //D64V8
#else
#define GLOBAL
#define LOCAL
/* dummy functions for host */
inline int work_group_reduce_add(int x) { return x; }
inline float work_group_reduce_min(float x) { return x; }
inline float work_group_reduce_max(float x) { return x; }
inline float atomic_min(volatile float *p, float val) { return val; };
inline float atomic_max(volatile float *p, float val) { return val; };
inline uint32_t intel_sub_group_ballot(bool valid) { return 0; }
#endif
/* creates a temporary that is enforced to be uniform */
#define SYCL_UNIFORM_VAR(Ty,tmp,k) \
Ty tmp##_data; \
Ty* p##tmp##_data = (Ty*) sub_group_broadcast((uint64_t)&tmp##_data,k); \
Ty& tmp = *p##tmp##_data;
#if !defined(__forceinline)
#define __forceinline inline __attribute__((always_inline))
#endif
#if __SYCL_COMPILER_VERSION < 20210801
#define all_of_group all_of
#define any_of_group any_of
#define none_of_group none_of
#define group_broadcast broadcast
#define reduce_over_group reduce
#define exclusive_scan_over_group exclusive_scan
#define inclusive_scan_over_group inclusive_scan
#endif
namespace embree
{
template<typename T>
__forceinline T cselect(const bool mask, const T &a, const T &b)
{
return sycl::select(b,a,(int)mask);
}
template<typename T, typename M>
__forceinline T cselect(const M &mask, const T &a, const T &b)
{
return sycl::select(b,a,mask);
}
__forceinline const sycl::sub_group this_sub_group() {
return sycl::ext::oneapi::experimental::this_sub_group();
}
__forceinline const uint32_t get_sub_group_local_id() {
return this_sub_group().get_local_id()[0];
}
__forceinline const uint32_t get_sub_group_size() {
return this_sub_group().get_max_local_range().size();
}
__forceinline const uint32_t get_sub_group_id() {
return this_sub_group().get_group_id()[0];
}
__forceinline const uint32_t get_num_sub_groups() {
return this_sub_group().get_group_range().size();
}
__forceinline uint32_t sub_group_ballot(bool pred) {
return intel_sub_group_ballot(pred);
}
__forceinline bool sub_group_all_of(bool pred) {
return sycl::all_of_group(this_sub_group(),pred);
}
__forceinline bool sub_group_any_of(bool pred) {
return sycl::any_of_group(this_sub_group(),pred);
}
__forceinline bool sub_group_none_of(bool pred) {
return sycl::none_of_group(this_sub_group(),pred);
}
template <typename T> __forceinline T sub_group_broadcast(T x, sycl::id<1> local_id) {
return sycl::group_broadcast<sycl::sub_group>(this_sub_group(),x,local_id);
}
template <typename T> __forceinline T sub_group_make_uniform(T x) {
return sub_group_broadcast(x,sycl::ctz(intel_sub_group_ballot(true)));
}
__forceinline void assume_uniform_array(void* ptr) {
#ifdef __SYCL_DEVICE_ONLY__
__builtin_IB_assume_uniform(ptr);
#endif
}
template <typename T, class BinaryOperation> __forceinline T sub_group_reduce(T x, BinaryOperation binary_op) {
return sycl::reduce_over_group<sycl::sub_group>(this_sub_group(),x,binary_op);
}
template <typename T, class BinaryOperation> __forceinline T sub_group_reduce(T x, T init, BinaryOperation binary_op) {
return sycl::reduce_over_group<sycl::sub_group>(this_sub_group(),x,init,binary_op);
}
template <typename T> __forceinline T sub_group_reduce_min(T x, T init) {
return sub_group_reduce(x, init, sycl::ext::oneapi::minimum<T>());
}
template <typename T> __forceinline T sub_group_reduce_min(T x) {
return sub_group_reduce(x, sycl::ext::oneapi::minimum<T>());
}
template <typename T> __forceinline T sub_group_reduce_max(T x) {
return sub_group_reduce(x, sycl::ext::oneapi::maximum<T>());
}
template <typename T> __forceinline T sub_group_reduce_add(T x) {
return sub_group_reduce(x, sycl::ext::oneapi::plus<T>());
}
template <typename T, class BinaryOperation> __forceinline T sub_group_exclusive_scan(T x, BinaryOperation binary_op) {
return sycl::exclusive_scan_over_group(this_sub_group(),x,binary_op);
}
template <typename T, class BinaryOperation> __forceinline T sub_group_exclusive_scan_min(T x) {
return sub_group_exclusive_scan(x,sycl::ext::oneapi::minimum<T>());
}
template <typename T, class BinaryOperation> __forceinline T sub_group_exclusive_scan(T x, T init, BinaryOperation binary_op) {
return sycl::exclusive_scan_over_group(this_sub_group(),x,init,binary_op);
}
template <typename T, class BinaryOperation> __forceinline T sub_group_inclusive_scan(T x, BinaryOperation binary_op) {
return sycl::inclusive_scan_over_group(this_sub_group(),x,binary_op);
}
template <typename T, class BinaryOperation> __forceinline T sub_group_inclusive_scan(T x, BinaryOperation binary_op, T init) {
return sycl::inclusive_scan_over_group(this_sub_group(),x,binary_op,init);
}
template <typename T> __forceinline T sub_group_shuffle(T x, sycl::id<1> local_id) {
return this_sub_group().shuffle(x, local_id);
}
template <typename T> __forceinline T sub_group_shuffle_down(T x, uint32_t delta) {
return this_sub_group().shuffle_down(x, delta);
}
template <typename T> __forceinline T sub_group_shuffle_up(T x, uint32_t delta) {
return this_sub_group().shuffle_up(x, delta);
}
template <typename T> __forceinline T sub_group_load(const void* src) {
return this_sub_group().load(sycl::multi_ptr<T,sycl::access::address_space::global_space>((T*)src));
}
template <typename T> __forceinline void sub_group_store(void* dst, const T& x) {
this_sub_group().store(sycl::multi_ptr<T,sycl::access::address_space::global_space>((T*)dst),x);
}
}
#if __SYCL_COMPILER_VERSION < 20210801
#undef all_of_group
#undef any_of_group
#undef none_of_group
#undef group_broadcast
#undef reduce_over_group
#undef exclusive_scan_over_group
#undef inclusive_scan_over_group
#endif
|
