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
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2009, Intel Corporation.
* All rights reserved.
*/
/*
* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#ifndef _CRC_HD_H
#define _CRC_HD_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#ifdef __cplusplus
#ifndef INLINE
#define INLINE inline
#endif
#else
#ifndef INLINE
#define INLINE
#endif
#endif
#if defined(__i386) || defined(__amd_64) || defined(__x86_64)
#ifdef _KERNEL
#include <sys/x86_archext.h> /* x86_featureset, X86FSET_SSE4_2 */
#else
#include <sys/auxv.h> /* getisax() */
#include <sys/auxv_386.h> /* AV_386_SSE4_2 bit */
#endif
static INLINE uint32_t
#ifdef _KERNEL
/*LINTED:E_FUNC_ARG_UNUSED*/
mm_crc32_u8(uint32_t crc, uint8_t *data)
#else
mm_crc32_u8(uint32_t crc, uint8_t *data)
#endif /* _KERNEL */
{
__asm__ __volatile__(
/* "crc32 r32, r/m8" */
".byte 0xF2, 0x0F, 0x38, 0xF0, 0xF1"
: "=S" (crc)
: "0" (crc), "c" (*data));
return (crc);
}
#if defined(__amd64) || defined(__x86_64)
static INLINE uint32_t
#ifdef _KERNEL
/*LINTED:E_FUNC_ARG_UNUSED*/
mm_crc32_u64(uint32_t crc, uint64_t *data)
#else
mm_crc32_u64(uint32_t crc, uint64_t *data)
#endif /* _KERNEL */
{
__asm__ __volatile__(
/* "crc32 r32, r/m64" */
".byte 0xF2, 0x48, 0x0F, 0x38, 0xF1, 0xF1"
: "=S" (crc)
: "0" (crc), "c" (*data));
return (crc);
}
#define INTEL_CRC_ALIGN_MASK 0x7
#define INTEL_CRC_SIZE 8
#define INTEL_CRC_DATA_TYPE uint64_t
#define INTEL_CRC_FUNC mm_crc32_u64
#else
static INLINE uint32_t
#ifdef _KERNEL
/*LINTED:E_FUNC_ARG_UNUSED*/
mm_crc32_u32(uint32_t crc, uint32_t *data)
#else
mm_crc32_u32(uint32_t crc, uint32_t *data)
#endif /* _KERNEL */
{
__asm__ __volatile__(
/* "crc32 r32, r/m32" */
".byte 0xF2, 0x0F, 0x38, 0xF1, 0xF1"
: "=S" (crc)
: "0" (crc), "c" (*data));
return (crc);
}
#define INTEL_CRC_ALIGN_MASK 0x3
#define INTEL_CRC_SIZE 4
#define INTEL_CRC_DATA_TYPE uint32_t
#define INTEL_CRC_FUNC mm_crc32_u32
#endif
static INLINE uint32_t
intel_crc32c(uint8_t *address, unsigned long length, uint32_t crc)
{
uint32_t i = (uintptr_t)address & INTEL_CRC_ALIGN_MASK;
uint8_t *data = address;
/* Process unaligned header data */
while ((length > 0) && (i > 0)) {
crc = mm_crc32_u8(crc, data);
++ data;
-- length;
i ++;
i &= INTEL_CRC_ALIGN_MASK;
}
/* aligned data part */
while (length >= INTEL_CRC_SIZE) {
/*LINTED:E_BAD_PTR_CAST_ALIGN*/
crc = INTEL_CRC_FUNC(crc, (INTEL_CRC_DATA_TYPE *)data);
data += INTEL_CRC_SIZE;
length -= INTEL_CRC_SIZE;
}
/* unaligned tail data */
while (length > 0) {
crc = mm_crc32_u8(crc, data);
++ data;
-- length;
}
return (crc ^ 0xFFFFFFFF);
}
#define HW_CRC32(buffer, length, crc) (intel_crc32c((buffer), (length), (crc)))
#define HW_CRC32_CONT(buffer, length, crc) \
(intel_crc32c((buffer), (length), (crc) ^ 0xFFFFFFFF))
#else
#define HW_CRC32(buffer, length, crc) 0
#define HW_CRC32_CONT(buffer, length, crc) 0
#endif
static INLINE boolean_t
#if defined(_KERNEL) && !defined(__i386) && !defined(__amd_64) &&\
!defined(__x86_64)
/*LINTED:E_FUNC_ARG_UNUSED*/
hd_crc32_avail(uint32_t *crc32_table)
#else
hd_crc32_avail(uint32_t *crc32_table)
#endif
{
#if defined(__i386) || defined(__amd_64) || defined(__x86_64)
int i;
/* poly = 0x1EDC6F41 */
static const uint32_t _intel_crc32_hd_table[256] = {
0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4,
0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B,
0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B,
0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54,
0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A,
0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5,
0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45,
0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A,
0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48,
0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687,
0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927,
0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8,
0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096,
0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859,
0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9,
0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36,
0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C,
0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043,
0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3,
0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C,
0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652,
0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D,
0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D,
0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2,
0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530,
0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF,
0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F,
0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90,
0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE,
0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321,
0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81,
0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E,
0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351
};
#ifdef _KERNEL
if (!is_x86_feature(x86_featureset, X86FSET_SSE4_2)) {
return (B_FALSE);
} else {
#else
{
uint_t ui = 0;
(void) getisax(&ui, 1);
if (!(ui & AV_386_SSE4_2)) {
return (B_FALSE);
}
#endif /* _KERNEL */
for (i = 0; i < 256; i++) {
if (crc32_table[i] != _intel_crc32_hd_table[i])
return (B_FALSE);
}
return (B_TRUE);
}
#else
return (B_FALSE);
#endif
}
#ifdef __cplusplus
}
#endif
#endif /* _CRC_HD_H */
|
