xref: /freebsd/sys/contrib/openzfs/module/zfs/vdev_raidz_math_avx512f.c (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or https://opensource.org/licenses/CDDL-1.0.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (C) 2016 Romain Dolbeau. All rights reserved.
23  * Copyright (C) 2016 Gvozden Nešković. All rights reserved.
24  */
25 
26 #include <sys/isa_defs.h>
27 
28 #if defined(__x86_64) && defined(HAVE_AVX512F)
29 
30 #include <sys/types.h>
31 #include <sys/simd.h>
32 #include <sys/debug.h>
33 
34 #ifdef __linux__
35 #define	__asm __asm__ __volatile__
36 #endif
37 
38 #define	_REG_CNT(_0, _1, _2, _3, _4, _5, _6, _7, N, ...) N
39 #define	REG_CNT(r...) _REG_CNT(r, 8, 7, 6, 5, 4, 3, 2, 1)
40 
41 #define	VR0_(REG, ...) "zmm"#REG
42 #define	VR1_(_1, REG, ...) "zmm"#REG
43 #define	VR2_(_1, _2, REG, ...) "zmm"#REG
44 #define	VR3_(_1, _2, _3, REG, ...) "zmm"#REG
45 #define	VR4_(_1, _2, _3, _4, REG, ...) "zmm"#REG
46 #define	VR5_(_1, _2, _3, _4, _5, REG, ...) "zmm"#REG
47 #define	VR6_(_1, _2, _3, _4, _5, _6, REG, ...) "zmm"#REG
48 #define	VR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) "zmm"#REG
49 
50 #define	VR0(r...) VR0_(r)
51 #define	VR1(r...) VR1_(r)
52 #define	VR2(r...) VR2_(r, 1)
53 #define	VR3(r...) VR3_(r, 1, 2)
54 #define	VR4(r...) VR4_(r, 1, 2)
55 #define	VR5(r...) VR5_(r, 1, 2, 3)
56 #define	VR6(r...) VR6_(r, 1, 2, 3, 4)
57 #define	VR7(r...) VR7_(r, 1, 2, 3, 4, 5)
58 
59 #define	VRy0_(REG, ...) "ymm"#REG
60 #define	VRy1_(_1, REG, ...) "ymm"#REG
61 #define	VRy2_(_1, _2, REG, ...) "ymm"#REG
62 #define	VRy3_(_1, _2, _3, REG, ...) "ymm"#REG
63 #define	VRy4_(_1, _2, _3, _4, REG, ...) "ymm"#REG
64 #define	VRy5_(_1, _2, _3, _4, _5, REG, ...) "ymm"#REG
65 #define	VRy6_(_1, _2, _3, _4, _5, _6, REG, ...) "ymm"#REG
66 #define	VRy7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) "ymm"#REG
67 
68 #define	VRy0(r...) VRy0_(r)
69 #define	VRy1(r...) VRy1_(r)
70 #define	VRy2(r...) VRy2_(r, 1)
71 #define	VRy3(r...) VRy3_(r, 1, 2)
72 #define	VRy4(r...) VRy4_(r, 1, 2)
73 #define	VRy5(r...) VRy5_(r, 1, 2, 3)
74 #define	VRy6(r...) VRy6_(r, 1, 2, 3, 4)
75 #define	VRy7(r...) VRy7_(r, 1, 2, 3, 4, 5)
76 
77 #define	R_01(REG1, REG2, ...) REG1, REG2
78 #define	_R_23(_0, _1, REG2, REG3, ...) REG2, REG3
79 #define	R_23(REG...) _R_23(REG, 1, 2, 3)
80 
81 #define	ELEM_SIZE 64
82 
83 typedef struct v {
84 	uint8_t b[ELEM_SIZE] __attribute__((aligned(ELEM_SIZE)));
85 } v_t;
86 
87 
88 #define	XOR_ACC(src, r...)						\
89 {									\
90 	switch (REG_CNT(r)) {						\
91 	case 4:								\
92 		__asm(							\
93 		    "vpxorq 0x00(%[SRC]), %%" VR0(r)", %%" VR0(r) "\n"	\
94 		    "vpxorq 0x40(%[SRC]), %%" VR1(r)", %%" VR1(r) "\n"	\
95 		    "vpxorq 0x80(%[SRC]), %%" VR2(r)", %%" VR2(r) "\n"	\
96 		    "vpxorq 0xc0(%[SRC]), %%" VR3(r)", %%" VR3(r) "\n"	\
97 		    : : [SRC] "r" (src));				\
98 		break;							\
99 	}								\
100 }
101 
102 #define	XOR(r...)							\
103 {									\
104 	switch (REG_CNT(r)) {						\
105 	case 8:								\
106 		__asm(							\
107 		    "vpxorq %" VR0(r) ", %" VR4(r)", %" VR4(r) "\n"	\
108 		    "vpxorq %" VR1(r) ", %" VR5(r)", %" VR5(r) "\n"	\
109 		    "vpxorq %" VR2(r) ", %" VR6(r)", %" VR6(r) "\n"	\
110 		    "vpxorq %" VR3(r) ", %" VR7(r)", %" VR7(r));	\
111 		break;							\
112 	case 4:								\
113 		__asm(							\
114 		    "vpxorq %" VR0(r) ", %" VR2(r)", %" VR2(r) "\n"	\
115 		    "vpxorq %" VR1(r) ", %" VR3(r)", %" VR3(r));	\
116 		break;							\
117 	}								\
118 }
119 
120 
121 #define	ZERO(r...)	XOR(r, r)
122 
123 
124 #define	COPY(r...) 							\
125 {									\
126 	switch (REG_CNT(r)) {						\
127 	case 8:								\
128 		__asm(							\
129 		    "vmovdqa64 %" VR0(r) ", %" VR4(r) "\n"		\
130 		    "vmovdqa64 %" VR1(r) ", %" VR5(r) "\n"		\
131 		    "vmovdqa64 %" VR2(r) ", %" VR6(r) "\n"		\
132 		    "vmovdqa64 %" VR3(r) ", %" VR7(r));			\
133 		break;							\
134 	case 4:								\
135 		__asm(							\
136 		    "vmovdqa64 %" VR0(r) ", %" VR2(r) "\n"		\
137 		    "vmovdqa64 %" VR1(r) ", %" VR3(r));			\
138 		break;							\
139 	}								\
140 }
141 
142 #define	LOAD(src, r...) 						\
143 {									\
144 	switch (REG_CNT(r)) {						\
145 	case 4:								\
146 		__asm(							\
147 		    "vmovdqa64 0x00(%[SRC]), %%" VR0(r) "\n"		\
148 		    "vmovdqa64 0x40(%[SRC]), %%" VR1(r) "\n"		\
149 		    "vmovdqa64 0x80(%[SRC]), %%" VR2(r) "\n"		\
150 		    "vmovdqa64 0xc0(%[SRC]), %%" VR3(r) "\n"		\
151 		    : : [SRC] "r" (src));				\
152 		break;							\
153 	}								\
154 }
155 
156 #define	STORE(dst, r...)   						\
157 {									\
158 	switch (REG_CNT(r)) {						\
159 	case 4:								\
160 		__asm(							\
161 		    "vmovdqa64 %%" VR0(r) ", 0x00(%[DST])\n"		\
162 		    "vmovdqa64 %%" VR1(r) ", 0x40(%[DST])\n"		\
163 		    "vmovdqa64 %%" VR2(r) ", 0x80(%[DST])\n"		\
164 		    "vmovdqa64 %%" VR3(r) ", 0xc0(%[DST])\n"		\
165 		    : : [DST] "r" (dst));				\
166 		break;							\
167 	}								\
168 }
169 
170 #define	MUL2_SETUP() 							\
171 {   									\
172 	__asm("vmovq %0,   %%xmm31" :: "r"(0x1d1d1d1d1d1d1d1d));	\
173 	__asm("vpbroadcastq %xmm31, %zmm31");				\
174 	__asm("vmovq %0,   %%xmm30" :: "r"(0x8080808080808080));	\
175 	__asm("vpbroadcastq %xmm30, %zmm30");				\
176 	__asm("vmovq %0,   %%xmm29" :: "r"(0xfefefefefefefefe));	\
177 	__asm("vpbroadcastq %xmm29, %zmm29");				\
178 }
179 
180 #define	_MUL2(r...) 							\
181 {									\
182 	switch	(REG_CNT(r)) {						\
183 	case 2:								\
184 		__asm(							\
185 		    "vpandq   %" VR0(r)", %zmm30, %zmm26\n"		\
186 		    "vpandq   %" VR1(r)", %zmm30, %zmm25\n"		\
187 		    "vpsrlq   $7, %zmm26, %zmm28\n"			\
188 		    "vpsrlq   $7, %zmm25, %zmm27\n"			\
189 		    "vpsllq   $1, %zmm26, %zmm26\n"			\
190 		    "vpsllq   $1, %zmm25, %zmm25\n"			\
191 		    "vpsubq   %zmm28, %zmm26, %zmm26\n"			\
192 		    "vpsubq   %zmm27, %zmm25, %zmm25\n"			\
193 		    "vpsllq   $1, %" VR0(r)", %" VR0(r) "\n"		\
194 		    "vpsllq   $1, %" VR1(r)", %" VR1(r) "\n"		\
195 		    "vpandq   %zmm26, %zmm31, %zmm26\n" 		\
196 		    "vpandq   %zmm25, %zmm31, %zmm25\n" 		\
197 		    "vpternlogd $0x6c,%zmm29, %zmm26, %" VR0(r) "\n"	\
198 		    "vpternlogd $0x6c,%zmm29, %zmm25, %" VR1(r));	\
199 		break;							\
200 	default:							\
201 		VERIFY(0);						\
202 	}								\
203 }
204 
205 #define	MUL2(r...)							\
206 {									\
207 	switch (REG_CNT(r)) {						\
208 	case 4:								\
209 	    _MUL2(R_01(r));						\
210 	    _MUL2(R_23(r));						\
211 	    break;							\
212 	case 2:								\
213 	    _MUL2(r);							\
214 	    break;							\
215 	}								\
216 }
217 
218 #define	MUL4(r...)							\
219 {									\
220 	MUL2(r);							\
221 	MUL2(r);							\
222 }
223 
224 
225 /* General multiplication by adding powers of two */
226 
227 #define	_mul_x2_in	21, 22
228 #define	_mul_x2_acc	23, 24
229 
230 #define	_MUL_PARAM(x, in, acc)						\
231 {									\
232 	if (x & 0x01) {	COPY(in, acc); } else { ZERO(acc); }		\
233 	if (x & 0xfe) { MUL2(in); }					\
234 	if (x & 0x02) { XOR(in, acc); }					\
235 	if (x & 0xfc) { MUL2(in); }					\
236 	if (x & 0x04) { XOR(in, acc); }					\
237 	if (x & 0xf8) { MUL2(in); }					\
238 	if (x & 0x08) { XOR(in, acc); }					\
239 	if (x & 0xf0) { MUL2(in); }					\
240 	if (x & 0x10) { XOR(in, acc); }					\
241 	if (x & 0xe0) { MUL2(in); }					\
242 	if (x & 0x20) { XOR(in, acc); }					\
243 	if (x & 0xc0) { MUL2(in); }					\
244 	if (x & 0x40) { XOR(in, acc); }					\
245 	if (x & 0x80) { MUL2(in); XOR(in, acc); }			\
246 }
247 
248 #define	MUL_x2_DEFINE(x)						\
249 static void 								\
250 mul_x2_ ## x(void) { _MUL_PARAM(x, _mul_x2_in, _mul_x2_acc); }
251 
252 
253 MUL_x2_DEFINE(0); MUL_x2_DEFINE(1); MUL_x2_DEFINE(2); MUL_x2_DEFINE(3);
254 MUL_x2_DEFINE(4); MUL_x2_DEFINE(5); MUL_x2_DEFINE(6); MUL_x2_DEFINE(7);
255 MUL_x2_DEFINE(8); MUL_x2_DEFINE(9); MUL_x2_DEFINE(10); MUL_x2_DEFINE(11);
256 MUL_x2_DEFINE(12); MUL_x2_DEFINE(13); MUL_x2_DEFINE(14); MUL_x2_DEFINE(15);
257 MUL_x2_DEFINE(16); MUL_x2_DEFINE(17); MUL_x2_DEFINE(18); MUL_x2_DEFINE(19);
258 MUL_x2_DEFINE(20); MUL_x2_DEFINE(21); MUL_x2_DEFINE(22); MUL_x2_DEFINE(23);
259 MUL_x2_DEFINE(24); MUL_x2_DEFINE(25); MUL_x2_DEFINE(26); MUL_x2_DEFINE(27);
260 MUL_x2_DEFINE(28); MUL_x2_DEFINE(29); MUL_x2_DEFINE(30); MUL_x2_DEFINE(31);
261 MUL_x2_DEFINE(32); MUL_x2_DEFINE(33); MUL_x2_DEFINE(34); MUL_x2_DEFINE(35);
262 MUL_x2_DEFINE(36); MUL_x2_DEFINE(37); MUL_x2_DEFINE(38); MUL_x2_DEFINE(39);
263 MUL_x2_DEFINE(40); MUL_x2_DEFINE(41); MUL_x2_DEFINE(42); MUL_x2_DEFINE(43);
264 MUL_x2_DEFINE(44); MUL_x2_DEFINE(45); MUL_x2_DEFINE(46); MUL_x2_DEFINE(47);
265 MUL_x2_DEFINE(48); MUL_x2_DEFINE(49); MUL_x2_DEFINE(50); MUL_x2_DEFINE(51);
266 MUL_x2_DEFINE(52); MUL_x2_DEFINE(53); MUL_x2_DEFINE(54); MUL_x2_DEFINE(55);
267 MUL_x2_DEFINE(56); MUL_x2_DEFINE(57); MUL_x2_DEFINE(58); MUL_x2_DEFINE(59);
268 MUL_x2_DEFINE(60); MUL_x2_DEFINE(61); MUL_x2_DEFINE(62); MUL_x2_DEFINE(63);
269 MUL_x2_DEFINE(64); MUL_x2_DEFINE(65); MUL_x2_DEFINE(66); MUL_x2_DEFINE(67);
270 MUL_x2_DEFINE(68); MUL_x2_DEFINE(69); MUL_x2_DEFINE(70); MUL_x2_DEFINE(71);
271 MUL_x2_DEFINE(72); MUL_x2_DEFINE(73); MUL_x2_DEFINE(74); MUL_x2_DEFINE(75);
272 MUL_x2_DEFINE(76); MUL_x2_DEFINE(77); MUL_x2_DEFINE(78); MUL_x2_DEFINE(79);
273 MUL_x2_DEFINE(80); MUL_x2_DEFINE(81); MUL_x2_DEFINE(82); MUL_x2_DEFINE(83);
274 MUL_x2_DEFINE(84); MUL_x2_DEFINE(85); MUL_x2_DEFINE(86); MUL_x2_DEFINE(87);
275 MUL_x2_DEFINE(88); MUL_x2_DEFINE(89); MUL_x2_DEFINE(90); MUL_x2_DEFINE(91);
276 MUL_x2_DEFINE(92); MUL_x2_DEFINE(93); MUL_x2_DEFINE(94); MUL_x2_DEFINE(95);
277 MUL_x2_DEFINE(96); MUL_x2_DEFINE(97); MUL_x2_DEFINE(98); MUL_x2_DEFINE(99);
278 MUL_x2_DEFINE(100); MUL_x2_DEFINE(101); MUL_x2_DEFINE(102); MUL_x2_DEFINE(103);
279 MUL_x2_DEFINE(104); MUL_x2_DEFINE(105); MUL_x2_DEFINE(106); MUL_x2_DEFINE(107);
280 MUL_x2_DEFINE(108); MUL_x2_DEFINE(109); MUL_x2_DEFINE(110); MUL_x2_DEFINE(111);
281 MUL_x2_DEFINE(112); MUL_x2_DEFINE(113); MUL_x2_DEFINE(114); MUL_x2_DEFINE(115);
282 MUL_x2_DEFINE(116); MUL_x2_DEFINE(117); MUL_x2_DEFINE(118); MUL_x2_DEFINE(119);
283 MUL_x2_DEFINE(120); MUL_x2_DEFINE(121); MUL_x2_DEFINE(122); MUL_x2_DEFINE(123);
284 MUL_x2_DEFINE(124); MUL_x2_DEFINE(125); MUL_x2_DEFINE(126); MUL_x2_DEFINE(127);
285 MUL_x2_DEFINE(128); MUL_x2_DEFINE(129); MUL_x2_DEFINE(130); MUL_x2_DEFINE(131);
286 MUL_x2_DEFINE(132); MUL_x2_DEFINE(133); MUL_x2_DEFINE(134); MUL_x2_DEFINE(135);
287 MUL_x2_DEFINE(136); MUL_x2_DEFINE(137); MUL_x2_DEFINE(138); MUL_x2_DEFINE(139);
288 MUL_x2_DEFINE(140); MUL_x2_DEFINE(141); MUL_x2_DEFINE(142); MUL_x2_DEFINE(143);
289 MUL_x2_DEFINE(144); MUL_x2_DEFINE(145); MUL_x2_DEFINE(146); MUL_x2_DEFINE(147);
290 MUL_x2_DEFINE(148); MUL_x2_DEFINE(149); MUL_x2_DEFINE(150); MUL_x2_DEFINE(151);
291 MUL_x2_DEFINE(152); MUL_x2_DEFINE(153); MUL_x2_DEFINE(154); MUL_x2_DEFINE(155);
292 MUL_x2_DEFINE(156); MUL_x2_DEFINE(157); MUL_x2_DEFINE(158); MUL_x2_DEFINE(159);
293 MUL_x2_DEFINE(160); MUL_x2_DEFINE(161); MUL_x2_DEFINE(162); MUL_x2_DEFINE(163);
294 MUL_x2_DEFINE(164); MUL_x2_DEFINE(165); MUL_x2_DEFINE(166); MUL_x2_DEFINE(167);
295 MUL_x2_DEFINE(168); MUL_x2_DEFINE(169); MUL_x2_DEFINE(170); MUL_x2_DEFINE(171);
296 MUL_x2_DEFINE(172); MUL_x2_DEFINE(173); MUL_x2_DEFINE(174); MUL_x2_DEFINE(175);
297 MUL_x2_DEFINE(176); MUL_x2_DEFINE(177); MUL_x2_DEFINE(178); MUL_x2_DEFINE(179);
298 MUL_x2_DEFINE(180); MUL_x2_DEFINE(181); MUL_x2_DEFINE(182); MUL_x2_DEFINE(183);
299 MUL_x2_DEFINE(184); MUL_x2_DEFINE(185); MUL_x2_DEFINE(186); MUL_x2_DEFINE(187);
300 MUL_x2_DEFINE(188); MUL_x2_DEFINE(189); MUL_x2_DEFINE(190); MUL_x2_DEFINE(191);
301 MUL_x2_DEFINE(192); MUL_x2_DEFINE(193); MUL_x2_DEFINE(194); MUL_x2_DEFINE(195);
302 MUL_x2_DEFINE(196); MUL_x2_DEFINE(197); MUL_x2_DEFINE(198); MUL_x2_DEFINE(199);
303 MUL_x2_DEFINE(200); MUL_x2_DEFINE(201); MUL_x2_DEFINE(202); MUL_x2_DEFINE(203);
304 MUL_x2_DEFINE(204); MUL_x2_DEFINE(205); MUL_x2_DEFINE(206); MUL_x2_DEFINE(207);
305 MUL_x2_DEFINE(208); MUL_x2_DEFINE(209); MUL_x2_DEFINE(210); MUL_x2_DEFINE(211);
306 MUL_x2_DEFINE(212); MUL_x2_DEFINE(213); MUL_x2_DEFINE(214); MUL_x2_DEFINE(215);
307 MUL_x2_DEFINE(216); MUL_x2_DEFINE(217); MUL_x2_DEFINE(218); MUL_x2_DEFINE(219);
308 MUL_x2_DEFINE(220); MUL_x2_DEFINE(221); MUL_x2_DEFINE(222); MUL_x2_DEFINE(223);
309 MUL_x2_DEFINE(224); MUL_x2_DEFINE(225); MUL_x2_DEFINE(226); MUL_x2_DEFINE(227);
310 MUL_x2_DEFINE(228); MUL_x2_DEFINE(229); MUL_x2_DEFINE(230); MUL_x2_DEFINE(231);
311 MUL_x2_DEFINE(232); MUL_x2_DEFINE(233); MUL_x2_DEFINE(234); MUL_x2_DEFINE(235);
312 MUL_x2_DEFINE(236); MUL_x2_DEFINE(237); MUL_x2_DEFINE(238); MUL_x2_DEFINE(239);
313 MUL_x2_DEFINE(240); MUL_x2_DEFINE(241); MUL_x2_DEFINE(242); MUL_x2_DEFINE(243);
314 MUL_x2_DEFINE(244); MUL_x2_DEFINE(245); MUL_x2_DEFINE(246); MUL_x2_DEFINE(247);
315 MUL_x2_DEFINE(248); MUL_x2_DEFINE(249); MUL_x2_DEFINE(250); MUL_x2_DEFINE(251);
316 MUL_x2_DEFINE(252); MUL_x2_DEFINE(253); MUL_x2_DEFINE(254); MUL_x2_DEFINE(255);
317 
318 
319 typedef void (*mul_fn_ptr_t)(void);
320 
321 static const mul_fn_ptr_t __attribute__((aligned(256)))
322 gf_x2_mul_fns[256] = {
323 	mul_x2_0, mul_x2_1, mul_x2_2, mul_x2_3, mul_x2_4, mul_x2_5,
324 	mul_x2_6, mul_x2_7, mul_x2_8, mul_x2_9, mul_x2_10, mul_x2_11,
325 	mul_x2_12, mul_x2_13, mul_x2_14, mul_x2_15, mul_x2_16, mul_x2_17,
326 	mul_x2_18, mul_x2_19, mul_x2_20, mul_x2_21, mul_x2_22, mul_x2_23,
327 	mul_x2_24, mul_x2_25, mul_x2_26, mul_x2_27, mul_x2_28, mul_x2_29,
328 	mul_x2_30, mul_x2_31, mul_x2_32, mul_x2_33, mul_x2_34, mul_x2_35,
329 	mul_x2_36, mul_x2_37, mul_x2_38, mul_x2_39, mul_x2_40, mul_x2_41,
330 	mul_x2_42, mul_x2_43, mul_x2_44, mul_x2_45, mul_x2_46, mul_x2_47,
331 	mul_x2_48, mul_x2_49, mul_x2_50, mul_x2_51, mul_x2_52, mul_x2_53,
332 	mul_x2_54, mul_x2_55, mul_x2_56, mul_x2_57, mul_x2_58, mul_x2_59,
333 	mul_x2_60, mul_x2_61, mul_x2_62, mul_x2_63, mul_x2_64, mul_x2_65,
334 	mul_x2_66, mul_x2_67, mul_x2_68, mul_x2_69, mul_x2_70, mul_x2_71,
335 	mul_x2_72, mul_x2_73, mul_x2_74, mul_x2_75, mul_x2_76, mul_x2_77,
336 	mul_x2_78, mul_x2_79, mul_x2_80, mul_x2_81, mul_x2_82, mul_x2_83,
337 	mul_x2_84, mul_x2_85, mul_x2_86, mul_x2_87, mul_x2_88, mul_x2_89,
338 	mul_x2_90, mul_x2_91, mul_x2_92, mul_x2_93, mul_x2_94, mul_x2_95,
339 	mul_x2_96, mul_x2_97, mul_x2_98, mul_x2_99, mul_x2_100, mul_x2_101,
340 	mul_x2_102, mul_x2_103, mul_x2_104, mul_x2_105, mul_x2_106, mul_x2_107,
341 	mul_x2_108, mul_x2_109, mul_x2_110, mul_x2_111, mul_x2_112, mul_x2_113,
342 	mul_x2_114, mul_x2_115, mul_x2_116, mul_x2_117, mul_x2_118, mul_x2_119,
343 	mul_x2_120, mul_x2_121, mul_x2_122, mul_x2_123, mul_x2_124, mul_x2_125,
344 	mul_x2_126, mul_x2_127, mul_x2_128, mul_x2_129, mul_x2_130, mul_x2_131,
345 	mul_x2_132, mul_x2_133, mul_x2_134, mul_x2_135, mul_x2_136, mul_x2_137,
346 	mul_x2_138, mul_x2_139, mul_x2_140, mul_x2_141, mul_x2_142, mul_x2_143,
347 	mul_x2_144, mul_x2_145, mul_x2_146, mul_x2_147, mul_x2_148, mul_x2_149,
348 	mul_x2_150, mul_x2_151, mul_x2_152, mul_x2_153, mul_x2_154, mul_x2_155,
349 	mul_x2_156, mul_x2_157, mul_x2_158, mul_x2_159, mul_x2_160, mul_x2_161,
350 	mul_x2_162, mul_x2_163, mul_x2_164, mul_x2_165, mul_x2_166, mul_x2_167,
351 	mul_x2_168, mul_x2_169, mul_x2_170, mul_x2_171, mul_x2_172, mul_x2_173,
352 	mul_x2_174, mul_x2_175, mul_x2_176, mul_x2_177, mul_x2_178, mul_x2_179,
353 	mul_x2_180, mul_x2_181, mul_x2_182, mul_x2_183, mul_x2_184, mul_x2_185,
354 	mul_x2_186, mul_x2_187, mul_x2_188, mul_x2_189, mul_x2_190, mul_x2_191,
355 	mul_x2_192, mul_x2_193, mul_x2_194, mul_x2_195, mul_x2_196, mul_x2_197,
356 	mul_x2_198, mul_x2_199, mul_x2_200, mul_x2_201, mul_x2_202, mul_x2_203,
357 	mul_x2_204, mul_x2_205, mul_x2_206, mul_x2_207, mul_x2_208, mul_x2_209,
358 	mul_x2_210, mul_x2_211, mul_x2_212, mul_x2_213, mul_x2_214, mul_x2_215,
359 	mul_x2_216, mul_x2_217, mul_x2_218, mul_x2_219, mul_x2_220, mul_x2_221,
360 	mul_x2_222, mul_x2_223, mul_x2_224, mul_x2_225, mul_x2_226, mul_x2_227,
361 	mul_x2_228, mul_x2_229, mul_x2_230, mul_x2_231, mul_x2_232, mul_x2_233,
362 	mul_x2_234, mul_x2_235, mul_x2_236, mul_x2_237, mul_x2_238, mul_x2_239,
363 	mul_x2_240, mul_x2_241, mul_x2_242, mul_x2_243, mul_x2_244, mul_x2_245,
364 	mul_x2_246, mul_x2_247, mul_x2_248, mul_x2_249, mul_x2_250, mul_x2_251,
365 	mul_x2_252, mul_x2_253, mul_x2_254, mul_x2_255
366 };
367 
368 #define	MUL(c, r...) 							\
369 {									\
370 	switch (REG_CNT(r)) {						\
371 	case 4:								\
372 		COPY(R_01(r), _mul_x2_in);				\
373 		gf_x2_mul_fns[c]();					\
374 		COPY(_mul_x2_acc, R_01(r));				\
375 		COPY(R_23(r), _mul_x2_in);				\
376 		gf_x2_mul_fns[c]();					\
377 		COPY(_mul_x2_acc, R_23(r));				\
378 		break;							\
379 	default:							\
380 		VERIFY(0);						\
381 	}								\
382 }
383 
384 
385 #define	raidz_math_begin()	kfpu_begin()
386 #define	raidz_math_end()	kfpu_end()
387 
388 
389 #define	SYN_STRIDE		4
390 
391 #define	ZERO_STRIDE		4
392 #define	ZERO_DEFINE()		{}
393 #define	ZERO_D			0, 1, 2, 3
394 
395 #define	COPY_STRIDE		4
396 #define	COPY_DEFINE()		{}
397 #define	COPY_D			0, 1, 2, 3
398 
399 #define	ADD_STRIDE		4
400 #define	ADD_DEFINE()		{}
401 #define	ADD_D 			0, 1, 2, 3
402 
403 #define	MUL_STRIDE		4
404 #define	MUL_DEFINE() 		MUL2_SETUP()
405 #define	MUL_D			0, 1, 2, 3
406 
407 #define	GEN_P_STRIDE		4
408 #define	GEN_P_DEFINE()		{}
409 #define	GEN_P_P			0, 1, 2, 3
410 
411 #define	GEN_PQ_STRIDE		4
412 #define	GEN_PQ_DEFINE() 	{}
413 #define	GEN_PQ_D		0, 1, 2, 3
414 #define	GEN_PQ_C		4, 5, 6, 7
415 
416 #define	GEN_PQR_STRIDE		4
417 #define	GEN_PQR_DEFINE() 	{}
418 #define	GEN_PQR_D		0, 1, 2, 3
419 #define	GEN_PQR_C		4, 5, 6, 7
420 
421 #define	SYN_Q_DEFINE()		{}
422 #define	SYN_Q_D			0, 1, 2, 3
423 #define	SYN_Q_X			4, 5, 6, 7
424 
425 #define	SYN_R_DEFINE()		{}
426 #define	SYN_R_D			0, 1, 2, 3
427 #define	SYN_R_X			4, 5, 6, 7
428 
429 #define	SYN_PQ_DEFINE() 	{}
430 #define	SYN_PQ_D		0, 1, 2, 3
431 #define	SYN_PQ_X		4, 5, 6, 7
432 
433 #define	REC_PQ_STRIDE		4
434 #define	REC_PQ_DEFINE()		MUL2_SETUP()
435 #define	REC_PQ_X		0, 1, 2, 3
436 #define	REC_PQ_Y		4, 5, 6, 7
437 #define	REC_PQ_T		8, 9, 10, 11
438 
439 #define	SYN_PR_DEFINE() 	{}
440 #define	SYN_PR_D		0, 1, 2, 3
441 #define	SYN_PR_X		4, 5, 6, 7
442 
443 #define	REC_PR_STRIDE		4
444 #define	REC_PR_DEFINE() 	MUL2_SETUP()
445 #define	REC_PR_X		0, 1, 2, 3
446 #define	REC_PR_Y		4, 5, 6, 7
447 #define	REC_PR_T		8, 9, 10, 11
448 
449 #define	SYN_QR_DEFINE() 	{}
450 #define	SYN_QR_D		0, 1, 2, 3
451 #define	SYN_QR_X		4, 5, 6, 7
452 
453 #define	REC_QR_STRIDE		4
454 #define	REC_QR_DEFINE() 	MUL2_SETUP()
455 #define	REC_QR_X		0, 1, 2, 3
456 #define	REC_QR_Y		4, 5, 6, 7
457 #define	REC_QR_T		8, 9, 10, 11
458 
459 #define	SYN_PQR_DEFINE() 	{}
460 #define	SYN_PQR_D		0, 1, 2, 3
461 #define	SYN_PQR_X		4, 5, 6, 7
462 
463 #define	REC_PQR_STRIDE		4
464 #define	REC_PQR_DEFINE() 	MUL2_SETUP()
465 #define	REC_PQR_X		0, 1, 2, 3
466 #define	REC_PQR_Y		4, 5, 6, 7
467 #define	REC_PQR_Z		8, 9, 10, 11
468 #define	REC_PQR_XS		12, 13, 14, 15
469 #define	REC_PQR_YS		16, 17, 18, 19
470 
471 
472 #include <sys/vdev_raidz_impl.h>
473 #include "vdev_raidz_math_impl.h"
474 
475 DEFINE_GEN_METHODS(avx512f);
476 DEFINE_REC_METHODS(avx512f);
477 
478 static boolean_t
479 raidz_will_avx512f_work(void)
480 {
481 	return (kfpu_allowed() && zfs_avx_available() &&
482 	    zfs_avx2_available() && zfs_avx512f_available());
483 }
484 
485 const raidz_impl_ops_t vdev_raidz_avx512f_impl = {
486 	.init = NULL,
487 	.fini = NULL,
488 	.gen = RAIDZ_GEN_METHODS(avx512f),
489 	.rec = RAIDZ_REC_METHODS(avx512f),
490 	.is_supported = &raidz_will_avx512f_work,
491 	.name = "avx512f"
492 };
493 
494 #endif /* defined(__x86_64) && defined(HAVE_AVX512F) */
495