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-rw-r--r--cmd/raidz_test/raidz_test.h2
-rw-r--r--include/sys/vdev_raidz_impl.h6
-rw-r--r--lib/libzpool/Makefile.am2
-rw-r--r--man/man5/zfs-module-parameters.52
-rw-r--r--module/zfs/Makefile.in2
-rw-r--r--module/zfs/vdev_raidz_math.c6
-rw-r--r--module/zfs/vdev_raidz_math_avx512bw.c428
-rw-r--r--module/zfs/vdev_raidz_math_avx512f.c523
8 files changed, 971 insertions, 0 deletions
diff --git a/cmd/raidz_test/raidz_test.h b/cmd/raidz_test/raidz_test.h
index 89bbf413b..b279d82f2 100644
--- a/cmd/raidz_test/raidz_test.h
+++ b/cmd/raidz_test/raidz_test.h
@@ -34,6 +34,8 @@ static const char *raidz_impl_names[] = {
"sse2",
"ssse3",
"avx2",
+ "avx512f",
+ "avx512bw",
"aarch64_neon",
"aarch64_neonx2",
NULL
diff --git a/include/sys/vdev_raidz_impl.h b/include/sys/vdev_raidz_impl.h
index ca902f15d..735b67764 100644
--- a/include/sys/vdev_raidz_impl.h
+++ b/include/sys/vdev_raidz_impl.h
@@ -141,6 +141,12 @@ extern const raidz_impl_ops_t vdev_raidz_ssse3_impl;
#if defined(__x86_64) && defined(HAVE_AVX2) /* only x86_64 for now */
extern const raidz_impl_ops_t vdev_raidz_avx2_impl;
#endif
+#if defined(__x86_64) && defined(HAVE_AVX512F) /* only x86_64 for now */
+extern const raidz_impl_ops_t vdev_raidz_avx512f_impl;
+#endif
+#if defined(__x86_64) && defined(HAVE_AVX512BW) /* only x86_64 for now */
+extern const raidz_impl_ops_t vdev_raidz_avx512bw_impl;
+#endif
#if defined(__aarch64__)
extern const raidz_impl_ops_t vdev_raidz_aarch64_neon_impl;
extern const raidz_impl_ops_t vdev_raidz_aarch64_neonx2_impl;
diff --git a/lib/libzpool/Makefile.am b/lib/libzpool/Makefile.am
index 13353a58a..ac1a78208 100644
--- a/lib/libzpool/Makefile.am
+++ b/lib/libzpool/Makefile.am
@@ -102,6 +102,8 @@ KERNEL_C = \
vdev_raidz_math_sse2.c \
vdev_raidz_math_ssse3.c \
vdev_raidz_math_avx2.c \
+ vdev_raidz_math_avx512f.c \
+ vdev_raidz_math_avx512bw.c \
vdev_raidz_math_aarch64_neon.c \
vdev_raidz_math_aarch64_neonx2.c \
vdev_root.c \
diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5
index 8e37a97e2..dc6601581 100644
--- a/man/man5/zfs-module-parameters.5
+++ b/man/man5/zfs-module-parameters.5
@@ -1775,6 +1775,8 @@ Possible options are:
sse2 - implementation using SSE2 instruction set (64bit x86 only)
ssse3 - implementation using SSSE3 instruction set (64bit x86 only)
avx2 - implementation using AVX2 instruction set (64bit x86 only)
+ avx512f - implementation using AVX512F instruction set (64bit x86 only)
+ avx512bw - implementation using AVX512F & AVX512BW instruction sets (64bit x86 only)
aarch64_neon - implementation using NEON (Aarch64/64 bit ARMv8 only)
aarch64_neonx2 - implementation using NEON with more unrolling (Aarch64/64 bit ARMv8 only)
.sp
diff --git a/module/zfs/Makefile.in b/module/zfs/Makefile.in
index ce368880c..5ad319f32 100644
--- a/module/zfs/Makefile.in
+++ b/module/zfs/Makefile.in
@@ -117,6 +117,8 @@ $(MODULE)-objs += dsl_userhold.o
$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_sse2.o
$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_ssse3.o
$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_avx2.o
+$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_avx512f.o
+$(MODULE)-$(CONFIG_X86) += vdev_raidz_math_avx512bw.o
$(MODULE)-$(CONFIG_ARM64) += vdev_raidz_math_aarch64_neon.o
$(MODULE)-$(CONFIG_ARM64) += vdev_raidz_math_aarch64_neonx2.o
diff --git a/module/zfs/vdev_raidz_math.c b/module/zfs/vdev_raidz_math.c
index c22d54418..33c05dadd 100644
--- a/module/zfs/vdev_raidz_math.c
+++ b/module/zfs/vdev_raidz_math.c
@@ -57,6 +57,12 @@ const raidz_impl_ops_t *raidz_all_maths[] = {
#if defined(__x86_64) && defined(HAVE_AVX2) /* only x86_64 for now */
&vdev_raidz_avx2_impl,
#endif
+#if defined(__x86_64) && defined(HAVE_AVX512F) /* only x86_64 for now */
+ &vdev_raidz_avx512f_impl,
+#endif
+#if defined(__x86_64) && defined(HAVE_AVX512BW) /* only x86_64 for now */
+ &vdev_raidz_avx512bw_impl,
+#endif
#if defined(__aarch64__)
&vdev_raidz_aarch64_neon_impl,
&vdev_raidz_aarch64_neonx2_impl,
diff --git a/module/zfs/vdev_raidz_math_avx512bw.c b/module/zfs/vdev_raidz_math_avx512bw.c
new file mode 100644
index 000000000..bcbe657d0
--- /dev/null
+++ b/module/zfs/vdev_raidz_math_avx512bw.c
@@ -0,0 +1,428 @@
+/*
+ * 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) 2016 Romain Dolbeau. All rights reserved.
+ */
+
+#include <sys/isa_defs.h>
+
+#if defined(__x86_64) && defined(HAVE_AVX512BW)
+
+#include <sys/types.h>
+#include <linux/simd_x86.h>
+
+#define __asm __asm__ __volatile__
+
+#define _REG_CNT(_0, _1, _2, _3, _4, _5, _6, _7, N, ...) N
+#define REG_CNT(r...) _REG_CNT(r, 8, 7, 6, 5, 4, 3, 2, 1)
+
+#define VR0_(REG, ...) "zmm"#REG
+#define VR1_(_1, REG, ...) "zmm"#REG
+#define VR2_(_1, _2, REG, ...) "zmm"#REG
+#define VR3_(_1, _2, _3, REG, ...) "zmm"#REG
+#define VR4_(_1, _2, _3, _4, REG, ...) "zmm"#REG
+#define VR5_(_1, _2, _3, _4, _5, REG, ...) "zmm"#REG
+#define VR6_(_1, _2, _3, _4, _5, _6, REG, ...) "zmm"#REG
+#define VR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) "zmm"#REG
+
+#define VR0(r...) VR0_(r)
+#define VR1(r...) VR1_(r)
+#define VR2(r...) VR2_(r, 1)
+#define VR3(r...) VR3_(r, 1, 2)
+#define VR4(r...) VR4_(r, 1, 2)
+#define VR5(r...) VR5_(r, 1, 2, 3)
+#define VR6(r...) VR6_(r, 1, 2, 3, 4)
+#define VR7(r...) VR7_(r, 1, 2, 3, 4, 5)
+
+#define R_01(REG1, REG2, ...) REG1, REG2
+#define _R_23(_0, _1, REG2, REG3, ...) REG2, REG3
+#define R_23(REG...) _R_23(REG, 1, 2, 3)
+
+#define ASM_BUG() ASSERT(0)
+
+extern const uint8_t gf_clmul_mod_lt[4*256][16];
+
+#define ELEM_SIZE 64
+
+typedef struct v {
+ uint8_t b[ELEM_SIZE] __attribute__((aligned(ELEM_SIZE)));
+} v_t;
+
+#define PREFETCHNTA(ptr, offset) \
+{ \
+ __asm( \
+ "prefetchnta " #offset "(%[MEM])\n" \
+ : : [MEM] "r" (ptr)); \
+}
+
+#define PREFETCH(ptr, offset) \
+{ \
+ __asm( \
+ "prefetcht0 " #offset "(%[MEM])\n" \
+ : : [MEM] "r" (ptr)); \
+}
+
+#define XOR_ACC(src, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ __asm( \
+ "vpxorq 0x00(%[SRC]), %%" VR0(r)", %%" VR0(r) "\n" \
+ "vpxorq 0x40(%[SRC]), %%" VR1(r)", %%" VR1(r) "\n" \
+ "vpxorq 0x80(%[SRC]), %%" VR2(r)", %%" VR2(r) "\n" \
+ "vpxorq 0xc0(%[SRC]), %%" VR3(r)", %%" VR3(r) "\n" \
+ : : [SRC] "r" (src)); \
+ break; \
+ case 2: \
+ __asm( \
+ "vpxorq 0x00(%[SRC]), %%" VR0(r)", %%" VR0(r) "\n" \
+ "vpxorq 0x40(%[SRC]), %%" VR1(r)", %%" VR1(r) "\n" \
+ : : [SRC] "r" (src)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define XOR(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 8: \
+ __asm( \
+ "vpxorq %" VR0(r) ", %" VR4(r)", %" VR4(r) "\n" \
+ "vpxorq %" VR1(r) ", %" VR5(r)", %" VR5(r) "\n" \
+ "vpxorq %" VR2(r) ", %" VR6(r)", %" VR6(r) "\n" \
+ "vpxorq %" VR3(r) ", %" VR7(r)", %" VR7(r)); \
+ break; \
+ case 4: \
+ __asm( \
+ "vpxorq %" VR0(r) ", %" VR2(r)", %" VR2(r) "\n" \
+ "vpxorq %" VR1(r) ", %" VR3(r)", %" VR3(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define ZERO(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ __asm( \
+ "vpxorq %" VR0(r) ", %" VR0(r)", %" VR0(r) "\n" \
+ "vpxorq %" VR1(r) ", %" VR1(r)", %" VR1(r) "\n" \
+ "vpxorq %" VR2(r) ", %" VR2(r)", %" VR2(r) "\n" \
+ "vpxorq %" VR3(r) ", %" VR3(r)", %" VR3(r)); \
+ break; \
+ case 2: \
+ __asm( \
+ "vpxorq %" VR0(r) ", %" VR0(r)", %" VR0(r) "\n" \
+ "vpxorq %" VR1(r) ", %" VR1(r)", %" VR1(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define COPY(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 8: \
+ __asm( \
+ "vmovdqa64 %" VR0(r) ", %" VR4(r) "\n" \
+ "vmovdqa64 %" VR1(r) ", %" VR5(r) "\n" \
+ "vmovdqa64 %" VR2(r) ", %" VR6(r) "\n" \
+ "vmovdqa64 %" VR3(r) ", %" VR7(r)); \
+ break; \
+ case 4: \
+ __asm( \
+ "vmovdqa64 %" VR0(r) ", %" VR2(r) "\n" \
+ "vmovdqa64 %" VR1(r) ", %" VR3(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define LOAD(src, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ __asm( \
+ "vmovdqa64 0x00(%[SRC]), %%" VR0(r) "\n" \
+ "vmovdqa64 0x40(%[SRC]), %%" VR1(r) "\n" \
+ "vmovdqa64 0x80(%[SRC]), %%" VR2(r) "\n" \
+ "vmovdqa64 0xc0(%[SRC]), %%" VR3(r) "\n" \
+ : : [SRC] "r" (src)); \
+ break; \
+ case 2: \
+ __asm( \
+ "vmovdqa64 0x00(%[SRC]), %%" VR0(r) "\n" \
+ "vmovdqa64 0x40(%[SRC]), %%" VR1(r) "\n" \
+ : : [SRC] "r" (src)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define STORE(dst, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ __asm( \
+ "vmovdqa64 %%" VR0(r) ", 0x00(%[DST])\n" \
+ "vmovdqa64 %%" VR1(r) ", 0x40(%[DST])\n" \
+ "vmovdqa64 %%" VR2(r) ", 0x80(%[DST])\n" \
+ "vmovdqa64 %%" VR3(r) ", 0xc0(%[DST])\n" \
+ : : [DST] "r" (dst)); \
+ break; \
+ case 2: \
+ __asm( \
+ "vmovdqa64 %%" VR0(r) ", 0x00(%[DST])\n" \
+ "vmovdqa64 %%" VR1(r) ", 0x40(%[DST])\n" \
+ : : [DST] "r" (dst)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define FLUSH() \
+{ \
+ __asm("vzeroupper"); \
+}
+
+#define MUL2_SETUP() \
+{ \
+ __asm("vmovq %0, %%xmm14" :: "r"(0x1d1d1d1d1d1d1d1d)); \
+ __asm("vpbroadcastq %xmm14, %zmm14"); \
+ __asm("vmovq %0, %%xmm13" :: "r"(0x8080808080808080)); \
+ __asm("vpbroadcastq %xmm13, %zmm13"); \
+ __asm("vmovq %0, %%xmm12" :: "r"(0xfefefefefefefefe)); \
+ __asm("vpbroadcastq %xmm12, %zmm12"); \
+ __asm("vpxorq %zmm15, %zmm15 ,%zmm15"); \
+}
+
+#define _MUL2(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 2: \
+ __asm( \
+ "vpandq %" VR0(r)", %zmm13, %zmm10\n" \
+ "vpandq %" VR1(r)", %zmm13, %zmm11\n" \
+ "vpsrlq $7, %zmm10, %zmm8\n" \
+ "vpsrlq $7, %zmm11, %zmm9\n" \
+ "vpsllq $1, %zmm10, %zmm10\n" \
+ "vpsllq $1, %zmm11, %zmm11\n" \
+ "vpsubq %zmm8, %zmm10, %zmm10\n" \
+ "vpsubq %zmm9, %zmm11, %zmm11\n" \
+ "vpsllq $1, %" VR0(r)", %" VR0(r) "\n" \
+ "vpsllq $1, %" VR1(r)", %" VR1(r) "\n" \
+ "vpandq %zmm10, %zmm14, %zmm10\n" \
+ "vpandq %zmm11, %zmm14, %zmm11\n" \
+ "vpternlogd $0x6c,%zmm12, %zmm10, %" VR0(r) "\n" \
+ "vpternlogd $0x6c,%zmm12, %zmm11, %" VR1(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define MUL2(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ _MUL2(R_01(r)); \
+ _MUL2(R_23(r)); \
+ break; \
+ case 2: \
+ _MUL2(r); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define MUL4(r...) \
+{ \
+ MUL2(r); \
+ MUL2(r); \
+}
+
+#define _0f "zmm15"
+#define _as "zmm14"
+#define _bs "zmm13"
+#define _ltmod "zmm12"
+#define _ltmul "zmm11"
+#define _ta "zmm10"
+#define _tb "zmm15"
+
+static const uint8_t __attribute__((aligned(32))) _mul_mask = 0x0F;
+
+#define _MULx2(c, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 2: \
+ __asm( \
+ "vpbroadcastb (%[mask]), %%" _0f "\n" \
+ /* upper bits */ \
+ "vbroadcasti32x4 0x00(%[lt]), %%" _ltmod "\n" \
+ "vbroadcasti32x4 0x10(%[lt]), %%" _ltmul "\n" \
+ \
+ "vpsraw $0x4, %%" VR0(r) ", %%"_as "\n" \
+ "vpsraw $0x4, %%" VR1(r) ", %%"_bs "\n" \
+ "vpandq %%" _0f ", %%" VR0(r) ", %%" VR0(r) "\n" \
+ "vpandq %%" _0f ", %%" VR1(r) ", %%" VR1(r) "\n" \
+ "vpandq %%" _0f ", %%" _as ", %%" _as "\n" \
+ "vpandq %%" _0f ", %%" _bs ", %%" _bs "\n" \
+ \
+ "vpshufb %%" _as ", %%" _ltmod ", %%" _ta "\n" \
+ "vpshufb %%" _bs ", %%" _ltmod ", %%" _tb "\n" \
+ "vpshufb %%" _as ", %%" _ltmul ", %%" _as "\n" \
+ "vpshufb %%" _bs ", %%" _ltmul ", %%" _bs "\n" \
+ /* lower bits */ \
+ "vbroadcasti32x4 0x20(%[lt]), %%" _ltmod "\n" \
+ "vbroadcasti32x4 0x30(%[lt]), %%" _ltmul "\n" \
+ \
+ "vpxorq %%" _ta ", %%" _as ", %%" _as "\n" \
+ "vpxorq %%" _tb ", %%" _bs ", %%" _bs "\n" \
+ \
+ "vpshufb %%" VR0(r) ", %%" _ltmod ", %%" _ta "\n" \
+ "vpshufb %%" VR1(r) ", %%" _ltmod ", %%" _tb "\n" \
+ "vpshufb %%" VR0(r) ", %%" _ltmul ", %%" VR0(r) "\n"\
+ "vpshufb %%" VR1(r) ", %%" _ltmul ", %%" VR1(r) "\n"\
+ \
+ "vpxorq %%" _ta ", %%" VR0(r) ", %%" VR0(r) "\n" \
+ "vpxorq %%" _as ", %%" VR0(r) ", %%" VR0(r) "\n" \
+ "vpxorq %%" _tb ", %%" VR1(r) ", %%" VR1(r) "\n" \
+ "vpxorq %%" _bs ", %%" VR1(r) ", %%" VR1(r) "\n" \
+ : : [mask] "r" (&_mul_mask), \
+ [lt] "r" (gf_clmul_mod_lt[4*(c)])); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define MUL(c, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ _MULx2(c, R_01(r)); \
+ _MULx2(c, R_23(r)); \
+ break; \
+ case 2: \
+ _MULx2(c, R_01(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define raidz_math_begin() kfpu_begin()
+#define raidz_math_end() \
+{ \
+ FLUSH(); \
+ kfpu_end(); \
+}
+
+#define GEN_P_DEFINE() {}
+#define GEN_P_STRIDE 4
+#define GEN_P_P 0, 1, 2, 3
+
+#define GEN_PQ_DEFINE() {}
+#define GEN_PQ_STRIDE 4
+#define GEN_PQ_D 0, 1, 2, 3
+#define GEN_PQ_P 4, 5, 6, 7
+#define GEN_PQ_Q 20, 21, 22, 23
+
+#define GEN_PQR_DEFINE() {}
+#define GEN_PQR_STRIDE 2
+#define GEN_PQR_D 0, 1
+#define GEN_PQR_P 2, 3
+#define GEN_PQR_Q 4, 5
+#define GEN_PQR_R 6, 7
+
+#define REC_P_DEFINE() {}
+#define REC_P_STRIDE 4
+#define REC_P_X 0, 1, 2, 3
+
+#define REC_Q_DEFINE() {}
+#define REC_Q_STRIDE 4
+#define REC_Q_X 0, 1, 2, 3
+
+#define REC_R_DEFINE() {}
+#define REC_R_STRIDE 4
+#define REC_R_X 0, 1, 2, 3
+
+#define REC_PQ_DEFINE() {}
+#define REC_PQ_STRIDE 4
+#define REC_PQ_X 0, 1, 2, 3
+#define REC_PQ_Y 4, 5, 6, 7
+#define REC_PQ_D 20, 21, 22, 23
+
+#define REC_PR_DEFINE() {}
+#define REC_PR_STRIDE 4
+#define REC_PR_X 0, 1, 2, 3
+#define REC_PR_Y 4, 5, 6, 7
+#define REC_PR_D 20, 21, 22, 23
+
+#define REC_QR_DEFINE() {}
+#define REC_QR_STRIDE 4
+#define REC_QR_X 0, 1, 2, 3
+#define REC_QR_Y 4, 5, 6, 7
+#define REC_QR_D 20, 21, 22, 23
+
+#define REC_PQR_DEFINE() {}
+#define REC_PQR_STRIDE 2
+#define REC_PQR_X 0, 1
+#define REC_PQR_Y 2, 3
+#define REC_PQR_Z 4, 5
+#define REC_PQR_D 6, 7
+#define REC_PQR_XS 6, 7
+#define REC_PQR_YS 8, 9
+
+
+#include <sys/vdev_raidz_impl.h>
+#include "vdev_raidz_math_impl.h"
+
+DEFINE_GEN_METHODS(avx512bw);
+DEFINE_REC_METHODS(avx512bw);
+
+static boolean_t
+raidz_will_avx512bw_work(void)
+{
+ return (zfs_avx_available() &&
+ zfs_avx512f_available() &&
+ zfs_avx512bw_available());
+}
+
+const raidz_impl_ops_t vdev_raidz_avx512bw_impl = {
+ .init = NULL,
+ .fini = NULL,
+ .gen = RAIDZ_GEN_METHODS(avx512bw),
+ .rec = RAIDZ_REC_METHODS(avx512bw),
+ .is_supported = &raidz_will_avx512bw_work,
+ .name = "avx512bw"
+};
+
+#endif /* defined(__x86_64) && defined(HAVE_AVX512BW) */
diff --git a/module/zfs/vdev_raidz_math_avx512f.c b/module/zfs/vdev_raidz_math_avx512f.c
new file mode 100644
index 000000000..cc3868bce
--- /dev/null
+++ b/module/zfs/vdev_raidz_math_avx512f.c
@@ -0,0 +1,523 @@
+/*
+ * 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) 2016 Romain Dolbeau. All rights reserved.
+ */
+
+#include <sys/isa_defs.h>
+
+#if defined(__x86_64) && defined(HAVE_AVX512F)
+
+#include <sys/types.h>
+#include <linux/simd_x86.h>
+
+#define __asm __asm__ __volatile__
+
+#define _REG_CNT(_0, _1, _2, _3, _4, _5, _6, _7, N, ...) N
+#define REG_CNT(r...) _REG_CNT(r, 8, 7, 6, 5, 4, 3, 2, 1)
+
+#define VR0_(REG, ...) "zmm"#REG
+#define VR1_(_1, REG, ...) "zmm"#REG
+#define VR2_(_1, _2, REG, ...) "zmm"#REG
+#define VR3_(_1, _2, _3, REG, ...) "zmm"#REG
+#define VR4_(_1, _2, _3, _4, REG, ...) "zmm"#REG
+#define VR5_(_1, _2, _3, _4, _5, REG, ...) "zmm"#REG
+#define VR6_(_1, _2, _3, _4, _5, _6, REG, ...) "zmm"#REG
+#define VR7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) "zmm"#REG
+
+#define VR0(r...) VR0_(r)
+#define VR1(r...) VR1_(r)
+#define VR2(r...) VR2_(r, 1)
+#define VR3(r...) VR3_(r, 1, 2)
+#define VR4(r...) VR4_(r, 1, 2)
+#define VR5(r...) VR5_(r, 1, 2, 3)
+#define VR6(r...) VR6_(r, 1, 2, 3, 4)
+#define VR7(r...) VR7_(r, 1, 2, 3, 4, 5)
+
+#define VRy0_(REG, ...) "ymm"#REG
+#define VRy1_(_1, REG, ...) "ymm"#REG
+#define VRy2_(_1, _2, REG, ...) "ymm"#REG
+#define VRy3_(_1, _2, _3, REG, ...) "ymm"#REG
+#define VRy4_(_1, _2, _3, _4, REG, ...) "ymm"#REG
+#define VRy5_(_1, _2, _3, _4, _5, REG, ...) "ymm"#REG
+#define VRy6_(_1, _2, _3, _4, _5, _6, REG, ...) "ymm"#REG
+#define VRy7_(_1, _2, _3, _4, _5, _6, _7, REG, ...) "ymm"#REG
+
+#define VRy0(r...) VRy0_(r)
+#define VRy1(r...) VRy1_(r)
+#define VRy2(r...) VRy2_(r, 1)
+#define VRy3(r...) VRy3_(r, 1, 2)
+#define VRy4(r...) VRy4_(r, 1, 2)
+#define VRy5(r...) VRy5_(r, 1, 2, 3)
+#define VRy6(r...) VRy6_(r, 1, 2, 3, 4)
+#define VRy7(r...) VRy7_(r, 1, 2, 3, 4, 5)
+
+#define R_01(REG1, REG2, ...) REG1, REG2
+#define _R_23(_0, _1, REG2, REG3, ...) REG2, REG3
+#define R_23(REG...) _R_23(REG, 1, 2, 3)
+
+#define ASM_BUG() ASSERT(0)
+
+extern const uint8_t gf_clmul_mod_lt[4*256][16];
+
+#define ELEM_SIZE 64
+
+typedef struct v {
+ uint8_t b[ELEM_SIZE] __attribute__((aligned(ELEM_SIZE)));
+} v_t;
+
+#define PREFETCHNTA(ptr, offset) \
+{ \
+ __asm( \
+ "prefetchnta " #offset "(%[MEM])\n" \
+ : : [MEM] "r" (ptr)); \
+}
+
+#define PREFETCH(ptr, offset) \
+{ \
+ __asm( \
+ "prefetcht0 " #offset "(%[MEM])\n" \
+ : : [MEM] "r" (ptr)); \
+}
+
+#define XOR_ACC(src, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ __asm( \
+ "vpxorq 0x00(%[SRC]), %%" VR0(r)", %%" VR0(r) "\n" \
+ "vpxorq 0x40(%[SRC]), %%" VR1(r)", %%" VR1(r) "\n" \
+ "vpxorq 0x80(%[SRC]), %%" VR2(r)", %%" VR2(r) "\n" \
+ "vpxorq 0xc0(%[SRC]), %%" VR3(r)", %%" VR3(r) "\n" \
+ : : [SRC] "r" (src)); \
+ break; \
+ case 2: \
+ __asm( \
+ "vpxorq 0x00(%[SRC]), %%" VR0(r)", %%" VR0(r) "\n" \
+ "vpxorq 0x40(%[SRC]), %%" VR1(r)", %%" VR1(r) "\n" \
+ : : [SRC] "r" (src)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define XOR(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 8: \
+ __asm( \
+ "vpxorq %" VR0(r) ", %" VR4(r)", %" VR4(r) "\n" \
+ "vpxorq %" VR1(r) ", %" VR5(r)", %" VR5(r) "\n" \
+ "vpxorq %" VR2(r) ", %" VR6(r)", %" VR6(r) "\n" \
+ "vpxorq %" VR3(r) ", %" VR7(r)", %" VR7(r)); \
+ break; \
+ case 4: \
+ __asm( \
+ "vpxorq %" VR0(r) ", %" VR2(r)", %" VR2(r) "\n" \
+ "vpxorq %" VR1(r) ", %" VR3(r)", %" VR3(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define ZERO(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ __asm( \
+ "vpxorq %" VR0(r) ", %" VR0(r)", %" VR0(r) "\n" \
+ "vpxorq %" VR1(r) ", %" VR1(r)", %" VR1(r) "\n" \
+ "vpxorq %" VR2(r) ", %" VR2(r)", %" VR2(r) "\n" \
+ "vpxorq %" VR3(r) ", %" VR3(r)", %" VR3(r)); \
+ break; \
+ case 2: \
+ __asm( \
+ "vpxorq %" VR0(r) ", %" VR0(r)", %" VR0(r) "\n" \
+ "vpxorq %" VR1(r) ", %" VR1(r)", %" VR1(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define COPY(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 8: \
+ __asm( \
+ "vmovdqa64 %" VR0(r) ", %" VR4(r) "\n" \
+ "vmovdqa64 %" VR1(r) ", %" VR5(r) "\n" \
+ "vmovdqa64 %" VR2(r) ", %" VR6(r) "\n" \
+ "vmovdqa64 %" VR3(r) ", %" VR7(r)); \
+ break; \
+ case 4: \
+ __asm( \
+ "vmovdqa64 %" VR0(r) ", %" VR2(r) "\n" \
+ "vmovdqa64 %" VR1(r) ", %" VR3(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define LOAD(src, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ __asm( \
+ "vmovdqa64 0x00(%[SRC]), %%" VR0(r) "\n" \
+ "vmovdqa64 0x40(%[SRC]), %%" VR1(r) "\n" \
+ "vmovdqa64 0x80(%[SRC]), %%" VR2(r) "\n" \
+ "vmovdqa64 0xc0(%[SRC]), %%" VR3(r) "\n" \
+ : : [SRC] "r" (src)); \
+ break; \
+ case 2: \
+ __asm( \
+ "vmovdqa64 0x00(%[SRC]), %%" VR0(r) "\n" \
+ "vmovdqa64 0x40(%[SRC]), %%" VR1(r) "\n" \
+ : : [SRC] "r" (src)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define STORE(dst, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ __asm( \
+ "vmovdqa64 %%" VR0(r) ", 0x00(%[DST])\n" \
+ "vmovdqa64 %%" VR1(r) ", 0x40(%[DST])\n" \
+ "vmovdqa64 %%" VR2(r) ", 0x80(%[DST])\n" \
+ "vmovdqa64 %%" VR3(r) ", 0xc0(%[DST])\n" \
+ : : [DST] "r" (dst)); \
+ break; \
+ case 2: \
+ __asm( \
+ "vmovdqa64 %%" VR0(r) ", 0x00(%[DST])\n" \
+ "vmovdqa64 %%" VR1(r) ", 0x40(%[DST])\n" \
+ : : [DST] "r" (dst)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define FLUSH() \
+{ \
+ __asm("vzeroupper"); \
+}
+
+#define MUL2_SETUP() \
+{ \
+ __asm("vmovq %0, %%xmm14" :: "r"(0x1d1d1d1d1d1d1d1d)); \
+ __asm("vpbroadcastq %xmm14, %zmm14"); \
+ __asm("vmovq %0, %%xmm13" :: "r"(0x8080808080808080)); \
+ __asm("vpbroadcastq %xmm13, %zmm13"); \
+ __asm("vmovq %0, %%xmm12" :: "r"(0xfefefefefefefefe)); \
+ __asm("vpbroadcastq %xmm12, %zmm12"); \
+ __asm("vpxorq %zmm0, %zmm0 ,%zmm0"); \
+}
+
+#define _MUL2(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 2: \
+ __asm( \
+ "vpandq %" VR0(r)", %zmm13, %zmm10\n" \
+ "vpandq %" VR1(r)", %zmm13, %zmm11\n" \
+ "vpsrlq $7, %zmm10, %zmm30\n" \
+ "vpsrlq $7, %zmm11, %zmm31\n" \
+ "vpsllq $1, %zmm10, %zmm10\n" \
+ "vpsllq $1, %zmm11, %zmm11\n" \
+ "vpsubq %zmm30, %zmm10, %zmm10\n" \
+ "vpsubq %zmm31, %zmm11, %zmm11\n" \
+ "vpsllq $1, %" VR0(r)", %" VR0(r) "\n" \
+ "vpsllq $1, %" VR1(r)", %" VR1(r) "\n" \
+ "vpandq %zmm10, %zmm14, %zmm10\n" \
+ "vpandq %zmm11, %zmm14, %zmm11\n" \
+ "vpternlogd $0x6c,%zmm12, %zmm10, %" VR0(r) "\n" \
+ "vpternlogd $0x6c,%zmm12, %zmm11, %" VR1(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define MUL2(r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ _MUL2(R_01(r)); \
+ _MUL2(R_23(r)); \
+ break; \
+ case 2: \
+ _MUL2(r); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define MUL4(r...) \
+{ \
+ MUL2(r); \
+ MUL2(r); \
+}
+
+/*
+ * Must match the init above
+ */
+#define _0f "zmm0"
+#define _as "zmm14"
+#define _bs "zmm13"
+#define _ltmod "zmm12"
+#define _ltmul "zmm11"
+#define _ta "zmm10"
+#define _tb "zmm15"
+
+/*
+ * Must be in the first 16, otherwise an EVEX pshufb is generated
+ * Must match above
+ */
+#define _asYlo "ymm14"
+#define _bsYlo "ymm13"
+#define _ltmodYlo "ymm12"
+#define _ltmulYlo "ymm11"
+#define _taYlo "ymm10"
+#define _tbYlo "ymm15"
+
+/*
+ * Must be in the first 16, otherwise an EVEX pshufb is generated
+ * ...
+ */
+#define _asYhi "ymm9"
+#define _bsYhi "ymm8"
+#define _ltmodYhi "ymm7"
+#define _ltmulYhi "ymm6"
+#define _taYhi "ymm5"
+#define _tbYhi "ymm4"
+
+/*
+ * This uses a pair of AVX2 pshufb to emulate the missing AVX512 pshufb.
+ * AVX512BW has the full pshufb
+ * To get VEX pshufb (AVX2, supported in KNL) instead of EVEX pshufb
+ * (AVX512BW, not supported on KNL, probably also requiring AVX51VL
+ * since we use a 256 bits version), all registers in parameters to
+ * pshufb must be among ymm0-ymm15, since only EVEX can encore
+ * ymm16-ymm31
+ * This is a bit hackish, but short of encoding the instruction in
+ * binary, how do we force the use of AVX2 pshufb ?
+ * Note that the other way round (forcing AVX512) is easy, just encode
+ * k0 as the mask register (k0 is all-1).
+ */
+#define _MULx2(c, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 2: \
+ __asm( \
+ "vmovq %[c0f], %%xmm0\n" \
+ "vpbroadcastq %%xmm0, %%" _0f "\n" \
+ /* upper bits */ \
+ "vbroadcasti32x4 0x00(%[lt]), %%" _ltmod "\n" \
+ "vbroadcasti32x4 0x10(%[lt]), %%" _ltmul "\n" \
+ \
+ "vpsrad $0x4, %%" VR0(r) ", %%"_as "\n" \
+ "vpsrad $0x4, %%" VR1(r) ", %%"_bs "\n" \
+ "vpandq %%" _0f ", %%" VR0(r) ", %%" VR0(r) "\n" \
+ "vpandq %%" _0f ", %%" VR1(r) ", %%" VR1(r) "\n" \
+ "vpandq %%" _0f ", %%" _as ", %%" _as "\n" \
+ "vpandq %%" _0f ", %%" _bs ", %%" _bs "\n" \
+ \
+ "vextracti64x4 $1,%%" _ltmod ",%%" _ltmodYhi"\n" \
+ \
+ "vextracti64x4 $1,%%" _as ",%%" _asYhi"\n" \
+ "vpshufb %%" _asYlo ", %%" _ltmodYlo ", %%" _taYlo "\n" \
+ "vpshufb %%" _asYhi ", %%" _ltmodYhi ", %%" _taYhi "\n" \
+ "vinserti64x4 $1,%%" _taYhi ",%%" _ta ",%%" _ta "\n" \
+ \
+ "vextracti64x4 $1,%%" _bs ",%%" _bsYhi"\n" \
+ "vpshufb %%" _bsYlo ", %%" _ltmodYlo ", %%" _tbYlo "\n" \
+ "vpshufb %%" _bsYhi ", %%" _ltmodYhi ", %%" _tbYhi "\n" \
+ "vinserti64x4 $1,%%" _tbYhi ",%%" _tb ",%%" _tb "\n" \
+ \
+ "vextracti64x4 $1,%%" _ltmul ",%%" _ltmulYhi"\n" \
+ \
+ "vpshufb %%" _asYlo ", %%" _ltmulYlo ", %%" _asYlo "\n" \
+ "vpshufb %%" _asYhi ", %%" _ltmulYhi ", %%" _asYhi "\n" \
+ "vinserti64x4 $1,%%" _asYhi ",%%" _as ",%%" _as "\n" \
+ \
+ "vpshufb %%" _bsYlo ", %%" _ltmulYlo ", %%" _bsYlo "\n" \
+ "vpshufb %%" _bsYhi ", %%" _ltmulYhi ", %%" _bsYhi "\n" \
+ "vinserti64x4 $1,%%" _bsYhi ",%%" _bs ",%%" _bs "\n" \
+ \
+ /* lower bits */ \
+ "vbroadcasti32x4 0x20(%[lt]), %%" _ltmod "\n" \
+ "vbroadcasti32x4 0x30(%[lt]), %%" _ltmul "\n" \
+ \
+ "vpxorq %%" _ta ", %%" _as ", %%" _as "\n" \
+ "vpxorq %%" _tb ", %%" _bs ", %%" _bs "\n" \
+ \
+ "vextracti64x4 $1,%%" _ltmod ",%%" _ltmodYhi"\n" \
+ \
+ "vextracti64x4 $0,%%" VR0(r) ",%%" "ymm1" "\n" \
+ "vextracti64x4 $1,%%" VR0(r) ",%%" _asYhi"\n" \
+ "vpshufb %%" "ymm1" ", %%" _ltmodYlo ", %%" _taYlo "\n" \
+ "vpshufb %%" _asYhi ", %%" _ltmodYhi ", %%" _taYhi "\n" \
+ "vinserti64x4 $1,%%" _taYhi ",%%" _ta ",%%" _ta "\n" \
+ \
+ "vextracti64x4 $0,%%" VR1(r) ",%%" "ymm2" "\n" \
+ "vextracti64x4 $1,%%" VR1(r) ",%%" _bsYhi"\n" \
+ "vpshufb %%" "ymm2" ", %%" _ltmodYlo ", %%" _tbYlo "\n" \
+ "vpshufb %%" _bsYhi ", %%" _ltmodYhi ", %%" _tbYhi "\n" \
+ "vinserti64x4 $1,%%" _tbYhi ",%%" _tb ",%%" _tb "\n" \
+ \
+ "vextracti64x4 $1,%%" _ltmul ",%%" _ltmulYhi"\n" \
+ \
+ "vpshufb %%" "ymm1" ", %%" _ltmulYlo ", %%" "ymm1" "\n" \
+ "vpshufb %%" _asYhi ", %%" _ltmulYhi ", %%" _asYhi "\n" \
+ "vinserti64x4 $1,%%" _asYhi ",%%" "zmm1" ",%%" VR0(r) "\n" \
+ \
+ "vpshufb %%" "ymm2" ", %%" _ltmulYlo ", %%" "ymm2" "\n" \
+ "vpshufb %%" _bsYhi ", %%" _ltmulYhi ", %%" _bsYhi "\n" \
+ "vinserti64x4 $1,%%" _bsYhi ",%%" "zmm2" ",%%" VR1(r) "\n" \
+ \
+ "vpxorq %%" _ta ", %%" VR0(r) ", %%" VR0(r) "\n" \
+ "vpxorq %%" _as ", %%" VR0(r) ", %%" VR0(r) "\n" \
+ "vpxorq %%" _tb ", %%" VR1(r) ", %%" VR1(r) "\n" \
+ "vpxorq %%" _bs ", %%" VR1(r) ", %%" VR1(r) "\n" \
+ : : [c0f] "r" (0x0f0f0f0f0f0f0f0f), \
+ [lt] "r" (gf_clmul_mod_lt[4*(c)])); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define MUL(c, r...) \
+{ \
+ switch (REG_CNT(r)) { \
+ case 4: \
+ _MULx2(c, R_01(r)); \
+ _MULx2(c, R_23(r)); \
+ break; \
+ case 2: \
+ _MULx2(c, R_01(r)); \
+ break; \
+ default: \
+ ASM_BUG(); \
+ } \
+}
+
+#define raidz_math_begin() kfpu_begin()
+#define raidz_math_end() \
+{ \
+ FLUSH(); \
+ kfpu_end(); \
+}
+
+/*
+ * This use zmm16-zmm31 registers to free up zmm0-zmm15
+ * to use with the AVX2 pshufb, see above
+ */
+#define GEN_P_DEFINE() {}
+#define GEN_P_STRIDE 4
+#define GEN_P_P 20, 21, 22, 23
+
+#define GEN_PQ_DEFINE() {}
+#define GEN_PQ_STRIDE 4
+#define GEN_PQ_D 20, 21, 22, 23
+#define GEN_PQ_P 24, 25, 26, 27
+#define GEN_PQ_Q 28, 29, 3, 4
+
+#define GEN_PQR_DEFINE() {}
+#define GEN_PQR_STRIDE 2
+#define GEN_PQR_D 20, 21
+#define GEN_PQR_P 22, 23
+#define GEN_PQR_Q 24, 25
+#define GEN_PQR_R 26, 27
+
+#define REC_P_DEFINE() {}
+#define REC_P_STRIDE 4
+#define REC_P_X 20, 21, 22, 23
+
+#define REC_Q_DEFINE() {}
+#define REC_Q_STRIDE 4
+#define REC_Q_X 20, 21, 22, 23
+
+#define REC_R_DEFINE() {}
+#define REC_R_STRIDE 4
+#define REC_R_X 20, 21, 22, 23
+
+#define REC_PQ_DEFINE() {}
+#define REC_PQ_STRIDE 2
+#define REC_PQ_X 20, 21
+#define REC_PQ_Y 22, 23
+#define REC_PQ_D 24, 25
+
+#define REC_PR_DEFINE() {}
+#define REC_PR_STRIDE 2
+#define REC_PR_X 20, 21
+#define REC_PR_Y 22, 23
+#define REC_PR_D 24, 25
+
+#define REC_QR_DEFINE() {}
+#define REC_QR_STRIDE 2
+#define REC_QR_X 20, 21
+#define REC_QR_Y 22, 23
+#define REC_QR_D 24, 25
+
+#define REC_PQR_DEFINE() {}
+#define REC_PQR_STRIDE 2
+#define REC_PQR_X 20, 21
+#define REC_PQR_Y 22, 23
+#define REC_PQR_Z 24, 25
+#define REC_PQR_D 26, 27
+#define REC_PQR_XS 26, 27
+#define REC_PQR_YS 28, 29
+
+
+#include <sys/vdev_raidz_impl.h>
+#include "vdev_raidz_math_impl.h"
+
+DEFINE_GEN_METHODS(avx512f);
+DEFINE_REC_METHODS(avx512f);
+
+static boolean_t
+raidz_will_avx512f_work(void)
+{
+ return (zfs_avx_available() &&
+ zfs_avx512f_available());
+}
+
+const raidz_impl_ops_t vdev_raidz_avx512f_impl = {
+ .init = NULL,
+ .fini = NULL,
+ .gen = RAIDZ_GEN_METHODS(avx512f),
+ .rec = RAIDZ_REC_METHODS(avx512f),
+ .is_supported = &raidz_will_avx512f_work,
+ .name = "avx512f"
+};
+
+#endif /* defined(__x86_64) && defined(HAVE_AVX512F) */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 10:43:21 +0000