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authorEric Biggers <ebiggers@kernel.org>2025-07-12 16:23:04 -0700
committerEric Biggers <ebiggers@kernel.org>2025-07-14 11:28:35 -0700
commitf3d6cb3dc0394b866bc0d1e15157ce45844cf3d3 (patch)
tree49d272f7f91c2cb5dfe9339107b8b487aa47f664 /lib
parentc751059985e02467c7fa6b14676c1d56d089b3cc (diff)
lib/crypto: x86/sha1: Migrate optimized code into library
Instead of exposing the x86-optimized SHA-1 code via x86-specific crypto_shash algorithms, instead just implement the sha1_blocks() library function. This is much simpler, it makes the SHA-1 library functions be x86-optimized, and it fixes the longstanding issue where the x86-optimized SHA-1 code was disabled by default. SHA-1 still remains available through crypto_shash, but individual architectures no longer need to handle it. To match sha1_blocks(), change the type of the nblocks parameter of the assembly functions from int to size_t. The assembly functions actually already treated it as size_t. Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20250712232329.818226-14-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/crypto/Kconfig1
-rw-r--r--lib/crypto/Makefile3
-rw-r--r--lib/crypto/x86/sha1-avx2-asm.S697
-rw-r--r--lib/crypto/x86/sha1-ni-asm.S299
-rw-r--r--lib/crypto/x86/sha1-ssse3-and-avx.S551
-rw-r--r--lib/crypto/x86/sha1.h74
6 files changed, 1625 insertions, 0 deletions
diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index 019034f2bb53..dc34441a80bd 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -152,6 +152,7 @@ config CRYPTO_LIB_SHA1_ARCH
default y if PPC
default y if S390
default y if SPARC64
+ default y if X86_64
config CRYPTO_LIB_SHA256
tristate
diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile
index 7897da2de623..b09fdb7f4b4c 100644
--- a/lib/crypto/Makefile
+++ b/lib/crypto/Makefile
@@ -82,6 +82,9 @@ libsha1-y += powerpc/sha1-powerpc-asm.o
libsha1-$(CONFIG_SPE) += powerpc/sha1-spe-asm.o
endif
libsha1-$(CONFIG_SPARC) += sparc/sha1_asm.o
+libsha1-$(CONFIG_X86) += x86/sha1-ssse3-and-avx.o \
+ x86/sha1-avx2-asm.o \
+ x86/sha1-ni-asm.o
endif # CONFIG_CRYPTO_LIB_SHA1_ARCH
################################################################################
diff --git a/lib/crypto/x86/sha1-avx2-asm.S b/lib/crypto/x86/sha1-avx2-asm.S
new file mode 100644
index 000000000000..91b2dc6db179
--- /dev/null
+++ b/lib/crypto/x86/sha1-avx2-asm.S
@@ -0,0 +1,697 @@
+/*
+ * Implement fast SHA-1 with AVX2 instructions. (x86_64)
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Contact Information:
+ * Ilya Albrekht <ilya.albrekht@intel.com>
+ * Maxim Locktyukhin <maxim.locktyukhin@intel.com>
+ * Ronen Zohar <ronen.zohar@intel.com>
+ * Chandramouli Narayanan <mouli@linux.intel.com>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+ * SHA-1 implementation with Intel(R) AVX2 instruction set extensions.
+ *
+ *This implementation is based on the previous SSSE3 release:
+ *Visit http://software.intel.com/en-us/articles/
+ *and refer to improving-the-performance-of-the-secure-hash-algorithm-1/
+ *
+ * void sha1_transform_avx2(struct sha1_block_state *state,
+ * const u8 *data, size_t nblocks);
+ */
+
+#include <linux/linkage.h>
+
+#define CTX %rdi /* arg1 */
+#define BUF %rsi /* arg2 */
+#define CNT %rdx /* arg3 */
+
+#define REG_A %ecx
+#define REG_B %esi
+#define REG_C %edi
+#define REG_D %eax
+#define REG_E %edx
+#define REG_TB %ebx
+#define REG_TA %r12d
+#define REG_RA %rcx
+#define REG_RB %rsi
+#define REG_RC %rdi
+#define REG_RD %rax
+#define REG_RE %rdx
+#define REG_RTA %r12
+#define REG_RTB %rbx
+#define REG_T1 %r11d
+#define xmm_mov vmovups
+#define avx2_zeroupper vzeroupper
+#define RND_F1 1
+#define RND_F2 2
+#define RND_F3 3
+
+.macro REGALLOC
+ .set A, REG_A
+ .set B, REG_B
+ .set C, REG_C
+ .set D, REG_D
+ .set E, REG_E
+ .set TB, REG_TB
+ .set TA, REG_TA
+
+ .set RA, REG_RA
+ .set RB, REG_RB
+ .set RC, REG_RC
+ .set RD, REG_RD
+ .set RE, REG_RE
+
+ .set RTA, REG_RTA
+ .set RTB, REG_RTB
+
+ .set T1, REG_T1
+.endm
+
+#define HASH_PTR %r9
+#define BLOCKS_CTR %r8
+#define BUFFER_PTR %r10
+#define BUFFER_PTR2 %r13
+
+#define PRECALC_BUF %r14
+#define WK_BUF %r15
+
+#define W_TMP %xmm0
+#define WY_TMP %ymm0
+#define WY_TMP2 %ymm9
+
+# AVX2 variables
+#define WY0 %ymm3
+#define WY4 %ymm5
+#define WY08 %ymm7
+#define WY12 %ymm8
+#define WY16 %ymm12
+#define WY20 %ymm13
+#define WY24 %ymm14
+#define WY28 %ymm15
+
+#define YMM_SHUFB_BSWAP %ymm10
+
+/*
+ * Keep 2 iterations precalculated at a time:
+ * - 80 DWORDs per iteration * 2
+ */
+#define W_SIZE (80*2*2 +16)
+
+#define WK(t) ((((t) % 80) / 4)*32 + ( (t) % 4)*4 + ((t)/80)*16 )(WK_BUF)
+#define PRECALC_WK(t) ((t)*2*2)(PRECALC_BUF)
+
+
+.macro UPDATE_HASH hash, val
+ add \hash, \val
+ mov \val, \hash
+.endm
+
+.macro PRECALC_RESET_WY
+ .set WY_00, WY0
+ .set WY_04, WY4
+ .set WY_08, WY08
+ .set WY_12, WY12
+ .set WY_16, WY16
+ .set WY_20, WY20
+ .set WY_24, WY24
+ .set WY_28, WY28
+ .set WY_32, WY_00
+.endm
+
+.macro PRECALC_ROTATE_WY
+ /* Rotate macros */
+ .set WY_32, WY_28
+ .set WY_28, WY_24
+ .set WY_24, WY_20
+ .set WY_20, WY_16
+ .set WY_16, WY_12
+ .set WY_12, WY_08
+ .set WY_08, WY_04
+ .set WY_04, WY_00
+ .set WY_00, WY_32
+
+ /* Define register aliases */
+ .set WY, WY_00
+ .set WY_minus_04, WY_04
+ .set WY_minus_08, WY_08
+ .set WY_minus_12, WY_12
+ .set WY_minus_16, WY_16
+ .set WY_minus_20, WY_20
+ .set WY_minus_24, WY_24
+ .set WY_minus_28, WY_28
+ .set WY_minus_32, WY
+.endm
+
+.macro PRECALC_00_15
+ .if (i == 0) # Initialize and rotate registers
+ PRECALC_RESET_WY
+ PRECALC_ROTATE_WY
+ .endif
+
+ /* message scheduling pre-compute for rounds 0-15 */
+ .if ((i & 7) == 0)
+ /*
+ * blended AVX2 and ALU instruction scheduling
+ * 1 vector iteration per 8 rounds
+ */
+ vmovdqu (i * 2)(BUFFER_PTR), W_TMP
+ .elseif ((i & 7) == 1)
+ vinsertf128 $1, ((i-1) * 2)(BUFFER_PTR2),\
+ WY_TMP, WY_TMP
+ .elseif ((i & 7) == 2)
+ vpshufb YMM_SHUFB_BSWAP, WY_TMP, WY
+ .elseif ((i & 7) == 4)
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
+ .elseif ((i & 7) == 7)
+ vmovdqu WY_TMP, PRECALC_WK(i&~7)
+
+ PRECALC_ROTATE_WY
+ .endif
+.endm
+
+.macro PRECALC_16_31
+ /*
+ * message scheduling pre-compute for rounds 16-31
+ * calculating last 32 w[i] values in 8 XMM registers
+ * pre-calculate K+w[i] values and store to mem
+ * for later load by ALU add instruction
+ *
+ * "brute force" vectorization for rounds 16-31 only
+ * due to w[i]->w[i-3] dependency
+ */
+ .if ((i & 7) == 0)
+ /*
+ * blended AVX2 and ALU instruction scheduling
+ * 1 vector iteration per 8 rounds
+ */
+ /* w[i-14] */
+ vpalignr $8, WY_minus_16, WY_minus_12, WY
+ vpsrldq $4, WY_minus_04, WY_TMP /* w[i-3] */
+ .elseif ((i & 7) == 1)
+ vpxor WY_minus_08, WY, WY
+ vpxor WY_minus_16, WY_TMP, WY_TMP
+ .elseif ((i & 7) == 2)
+ vpxor WY_TMP, WY, WY
+ vpslldq $12, WY, WY_TMP2
+ .elseif ((i & 7) == 3)
+ vpslld $1, WY, WY_TMP
+ vpsrld $31, WY, WY
+ .elseif ((i & 7) == 4)
+ vpor WY, WY_TMP, WY_TMP
+ vpslld $2, WY_TMP2, WY
+ .elseif ((i & 7) == 5)
+ vpsrld $30, WY_TMP2, WY_TMP2
+ vpxor WY, WY_TMP, WY_TMP
+ .elseif ((i & 7) == 7)
+ vpxor WY_TMP2, WY_TMP, WY
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
+ vmovdqu WY_TMP, PRECALC_WK(i&~7)
+
+ PRECALC_ROTATE_WY
+ .endif
+.endm
+
+.macro PRECALC_32_79
+ /*
+ * in SHA-1 specification:
+ * w[i] = (w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16]) rol 1
+ * instead we do equal:
+ * w[i] = (w[i-6] ^ w[i-16] ^ w[i-28] ^ w[i-32]) rol 2
+ * allows more efficient vectorization
+ * since w[i]=>w[i-3] dependency is broken
+ */
+
+ .if ((i & 7) == 0)
+ /*
+ * blended AVX2 and ALU instruction scheduling
+ * 1 vector iteration per 8 rounds
+ */
+ vpalignr $8, WY_minus_08, WY_minus_04, WY_TMP
+ .elseif ((i & 7) == 1)
+ /* W is W_minus_32 before xor */
+ vpxor WY_minus_28, WY, WY
+ .elseif ((i & 7) == 2)
+ vpxor WY_minus_16, WY_TMP, WY_TMP
+ .elseif ((i & 7) == 3)
+ vpxor WY_TMP, WY, WY
+ .elseif ((i & 7) == 4)
+ vpslld $2, WY, WY_TMP
+ .elseif ((i & 7) == 5)
+ vpsrld $30, WY, WY
+ vpor WY, WY_TMP, WY
+ .elseif ((i & 7) == 7)
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
+ vmovdqu WY_TMP, PRECALC_WK(i&~7)
+
+ PRECALC_ROTATE_WY
+ .endif
+.endm
+
+.macro PRECALC r, s
+ .set i, \r
+
+ .if (i < 40)
+ .set K_XMM, 32*0
+ .elseif (i < 80)
+ .set K_XMM, 32*1
+ .elseif (i < 120)
+ .set K_XMM, 32*2
+ .else
+ .set K_XMM, 32*3
+ .endif
+
+ .if (i<32)
+ PRECALC_00_15 \s
+ .elseif (i<64)
+ PRECALC_16_31 \s
+ .elseif (i < 160)
+ PRECALC_32_79 \s
+ .endif
+.endm
+
+.macro ROTATE_STATE
+ .set T_REG, E
+ .set E, D
+ .set D, C
+ .set C, B
+ .set B, TB
+ .set TB, A
+ .set A, T_REG
+
+ .set T_REG, RE
+ .set RE, RD
+ .set RD, RC
+ .set RC, RB
+ .set RB, RTB
+ .set RTB, RA
+ .set RA, T_REG
+.endm
+
+/* Macro relies on saved ROUND_Fx */
+
+.macro RND_FUN f, r
+ .if (\f == RND_F1)
+ ROUND_F1 \r
+ .elseif (\f == RND_F2)
+ ROUND_F2 \r
+ .elseif (\f == RND_F3)
+ ROUND_F3 \r
+ .endif
+.endm
+
+.macro RR r
+ .set round_id, (\r % 80)
+
+ .if (round_id == 0) /* Precalculate F for first round */
+ .set ROUND_FUNC, RND_F1
+ mov B, TB
+
+ rorx $(32-30), B, B /* b>>>2 */
+ andn D, TB, T1
+ and C, TB
+ xor T1, TB
+ .endif
+
+ RND_FUN ROUND_FUNC, \r
+ ROTATE_STATE
+
+ .if (round_id == 18)
+ .set ROUND_FUNC, RND_F2
+ .elseif (round_id == 38)
+ .set ROUND_FUNC, RND_F3
+ .elseif (round_id == 58)
+ .set ROUND_FUNC, RND_F2
+ .endif
+
+ .set round_id, ( (\r+1) % 80)
+
+ RND_FUN ROUND_FUNC, (\r+1)
+ ROTATE_STATE
+.endm
+
+.macro ROUND_F1 r
+ add WK(\r), E
+
+ andn C, A, T1 /* ~b&d */
+ lea (RE,RTB), E /* Add F from the previous round */
+
+ rorx $(32-5), A, TA /* T2 = A >>> 5 */
+ rorx $(32-30),A, TB /* b>>>2 for next round */
+
+ PRECALC (\r) /* msg scheduling for next 2 blocks */
+
+ /*
+ * Calculate F for the next round
+ * (b & c) ^ andn[b, d]
+ */
+ and B, A /* b&c */
+ xor T1, A /* F1 = (b&c) ^ (~b&d) */
+
+ lea (RE,RTA), E /* E += A >>> 5 */
+.endm
+
+.macro ROUND_F2 r
+ add WK(\r), E
+ lea (RE,RTB), E /* Add F from the previous round */
+
+ /* Calculate F for the next round */
+ rorx $(32-5), A, TA /* T2 = A >>> 5 */
+ .if ((round_id) < 79)
+ rorx $(32-30), A, TB /* b>>>2 for next round */
+ .endif
+ PRECALC (\r) /* msg scheduling for next 2 blocks */
+
+ .if ((round_id) < 79)
+ xor B, A
+ .endif
+
+ add TA, E /* E += A >>> 5 */
+
+ .if ((round_id) < 79)
+ xor C, A
+ .endif
+.endm
+
+.macro ROUND_F3 r
+ add WK(\r), E
+ PRECALC (\r) /* msg scheduling for next 2 blocks */
+
+ lea (RE,RTB), E /* Add F from the previous round */
+
+ mov B, T1
+ or A, T1
+
+ rorx $(32-5), A, TA /* T2 = A >>> 5 */
+ rorx $(32-30), A, TB /* b>>>2 for next round */
+
+ /* Calculate F for the next round
+ * (b and c) or (d and (b or c))
+ */
+ and C, T1
+ and B, A
+ or T1, A
+
+ add TA, E /* E += A >>> 5 */
+
+.endm
+
+/* Add constant only if (%2 > %3) condition met (uses RTA as temp)
+ * %1 + %2 >= %3 ? %4 : 0
+ */
+.macro ADD_IF_GE a, b, c, d
+ mov \a, RTA
+ add $\d, RTA
+ cmp $\c, \b
+ cmovge RTA, \a
+.endm
+
+/*
+ * macro implements 80 rounds of SHA-1, for multiple blocks with s/w pipelining
+ */
+.macro SHA1_PIPELINED_MAIN_BODY
+
+ REGALLOC
+
+ mov (HASH_PTR), A
+ mov 4(HASH_PTR), B
+ mov 8(HASH_PTR), C
+ mov 12(HASH_PTR), D
+ mov 16(HASH_PTR), E
+
+ mov %rsp, PRECALC_BUF
+ lea (2*4*80+32)(%rsp), WK_BUF
+
+ # Precalc WK for first 2 blocks
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 2, 64
+ .set i, 0
+ .rept 160
+ PRECALC i
+ .set i, i + 1
+ .endr
+
+ /* Go to next block if needed */
+ ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 3, 128
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
+ xchg WK_BUF, PRECALC_BUF
+
+ .align 32
+.L_loop:
+ /*
+ * code loops through more than one block
+ * we use K_BASE value as a signal of a last block,
+ * it is set below by: cmovae BUFFER_PTR, K_BASE
+ */
+ test BLOCKS_CTR, BLOCKS_CTR
+ jnz .L_begin
+ .align 32
+ jmp .L_end
+ .align 32
+.L_begin:
+
+ /*
+ * Do first block
+ * rounds: 0,2,4,6,8
+ */
+ .set j, 0
+ .rept 5
+ RR j
+ .set j, j+2
+ .endr
+
+ /*
+ * rounds:
+ * 10,12,14,16,18
+ * 20,22,24,26,28
+ * 30,32,34,36,38
+ * 40,42,44,46,48
+ * 50,52,54,56,58
+ */
+ .rept 25
+ RR j
+ .set j, j+2
+ .endr
+
+ /* Update Counter */
+ sub $1, BLOCKS_CTR
+ /* Move to the next block only if needed*/
+ ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 4, 128
+ /*
+ * rounds
+ * 60,62,64,66,68
+ * 70,72,74,76,78
+ */
+ .rept 10
+ RR j
+ .set j, j+2
+ .endr
+
+ UPDATE_HASH (HASH_PTR), A
+ UPDATE_HASH 4(HASH_PTR), TB
+ UPDATE_HASH 8(HASH_PTR), C
+ UPDATE_HASH 12(HASH_PTR), D
+ UPDATE_HASH 16(HASH_PTR), E
+
+ test BLOCKS_CTR, BLOCKS_CTR
+ jz .L_loop
+
+ mov TB, B
+
+ /* Process second block */
+ /*
+ * rounds
+ * 0+80, 2+80, 4+80, 6+80, 8+80
+ * 10+80,12+80,14+80,16+80,18+80
+ */
+
+ .set j, 0
+ .rept 10
+ RR j+80
+ .set j, j+2
+ .endr
+
+ /*
+ * rounds
+ * 20+80,22+80,24+80,26+80,28+80
+ * 30+80,32+80,34+80,36+80,38+80
+ */
+ .rept 10
+ RR j+80
+ .set j, j+2
+ .endr
+
+ /*
+ * rounds
+ * 40+80,42+80,44+80,46+80,48+80
+ * 50+80,52+80,54+80,56+80,58+80
+ */
+ .rept 10
+ RR j+80
+ .set j, j+2
+ .endr
+
+ /* update counter */
+ sub $1, BLOCKS_CTR
+ /* Move to the next block only if needed*/
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
+
+ /*
+ * rounds
+ * 60+80,62+80,64+80,66+80,68+80
+ * 70+80,72+80,74+80,76+80,78+80
+ */
+ .rept 10
+ RR j+80
+ .set j, j+2
+ .endr
+
+ UPDATE_HASH (HASH_PTR), A
+ UPDATE_HASH 4(HASH_PTR), TB
+ UPDATE_HASH 8(HASH_PTR), C
+ UPDATE_HASH 12(HASH_PTR), D
+ UPDATE_HASH 16(HASH_PTR), E
+
+ /* Reset state for AVX2 reg permutation */
+ mov A, TA
+ mov TB, A
+ mov C, TB
+ mov E, C
+ mov D, B
+ mov TA, D
+
+ REGALLOC
+
+ xchg WK_BUF, PRECALC_BUF
+
+ jmp .L_loop
+
+ .align 32
+.L_end:
+
+.endm
+/*
+ * macro implements SHA-1 function's body for several 64-byte blocks
+ * param: function's name
+ */
+.macro SHA1_VECTOR_ASM name
+ SYM_FUNC_START(\name)
+
+ push %rbx
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+
+ RESERVE_STACK = (W_SIZE*4 + 8+24)
+
+ /* Align stack */
+ push %rbp
+ mov %rsp, %rbp
+ and $~(0x20-1), %rsp
+ sub $RESERVE_STACK, %rsp
+
+ avx2_zeroupper
+
+ /* Setup initial values */
+ mov CTX, HASH_PTR
+ mov BUF, BUFFER_PTR
+
+ mov BUF, BUFFER_PTR2
+ mov CNT, BLOCKS_CTR
+
+ xmm_mov BSWAP_SHUFB_CTL(%rip), YMM_SHUFB_BSWAP
+
+ SHA1_PIPELINED_MAIN_BODY
+
+ avx2_zeroupper
+
+ mov %rbp, %rsp
+ pop %rbp
+
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbx
+
+ RET
+
+ SYM_FUNC_END(\name)
+.endm
+
+.section .rodata
+
+#define K1 0x5a827999
+#define K2 0x6ed9eba1
+#define K3 0x8f1bbcdc
+#define K4 0xca62c1d6
+
+.align 128
+K_XMM_AR:
+ .long K1, K1, K1, K1
+ .long K1, K1, K1, K1
+ .long K2, K2, K2, K2
+ .long K2, K2, K2, K2
+ .long K3, K3, K3, K3
+ .long K3, K3, K3, K3
+ .long K4, K4, K4, K4
+ .long K4, K4, K4, K4
+
+BSWAP_SHUFB_CTL:
+ .long 0x00010203
+ .long 0x04050607
+ .long 0x08090a0b
+ .long 0x0c0d0e0f
+ .long 0x00010203
+ .long 0x04050607
+ .long 0x08090a0b
+ .long 0x0c0d0e0f
+.text
+
+SHA1_VECTOR_ASM sha1_transform_avx2
diff --git a/lib/crypto/x86/sha1-ni-asm.S b/lib/crypto/x86/sha1-ni-asm.S
new file mode 100644
index 000000000000..3989b0642ff5
--- /dev/null
+++ b/lib/crypto/x86/sha1-ni-asm.S
@@ -0,0 +1,299 @@
+/*
+ * Intel SHA Extensions optimized implementation of a SHA-1 update function
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Contact Information:
+ * Sean Gulley <sean.m.gulley@intel.com>
+ * Tim Chen <tim.c.chen@linux.intel.com>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <linux/linkage.h>
+
+#define DIGEST_PTR %rdi /* 1st arg */
+#define DATA_PTR %rsi /* 2nd arg */
+#define NUM_BLKS %rdx /* 3rd arg */
+
+/* gcc conversion */
+#define FRAME_SIZE 32 /* space for 2x16 bytes */
+
+#define ABCD %xmm0
+#define E0 %xmm1 /* Need two E's b/c they ping pong */
+#define E1 %xmm2
+#define MSG0 %xmm3
+#define MSG1 %xmm4
+#define MSG2 %xmm5
+#define MSG3 %xmm6
+#define SHUF_MASK %xmm7
+
+
+/*
+ * Intel SHA Extensions optimized implementation of a SHA-1 block function
+ *
+ * This function takes a pointer to the current SHA-1 state, a pointer to the
+ * input data, and the number of 64-byte blocks to process. Once all blocks
+ * have been processed, the state is updated with the new state. This function
+ * only processes complete blocks. State initialization, buffering of partial
+ * blocks, and digest finalization are expected to be handled elsewhere.
+ *
+ * The indented lines in the loop are instructions related to rounds processing.
+ * The non-indented lines are instructions related to the message schedule.
+ *
+ * void sha1_ni_transform(struct sha1_block_state *state,
+ * const u8 *data, size_t nblocks)
+ */
+.text
+SYM_FUNC_START(sha1_ni_transform)
+ push %rbp
+ mov %rsp, %rbp
+ sub $FRAME_SIZE, %rsp
+ and $~0xF, %rsp
+
+ shl $6, NUM_BLKS /* convert to bytes */
+ jz .Ldone_hash
+ add DATA_PTR, NUM_BLKS /* pointer to end of data */
+
+ /* load initial hash values */
+ pinsrd $3, 1*16(DIGEST_PTR), E0
+ movdqu 0*16(DIGEST_PTR), ABCD
+ pand UPPER_WORD_MASK(%rip), E0
+ pshufd $0x1B, ABCD, ABCD
+
+ movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK
+
+.Lloop0:
+ /* Save hash values for addition after rounds */
+ movdqa E0, (0*16)(%rsp)
+ movdqa ABCD, (1*16)(%rsp)
+
+ /* Rounds 0-3 */
+ movdqu 0*16(DATA_PTR), MSG0
+ pshufb SHUF_MASK, MSG0
+ paddd MSG0, E0
+ movdqa ABCD, E1
+ sha1rnds4 $0, E0, ABCD
+
+ /* Rounds 4-7 */
+ movdqu 1*16(DATA_PTR), MSG1
+ pshufb SHUF_MASK, MSG1
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1rnds4 $0, E1, ABCD
+ sha1msg1 MSG1, MSG0
+
+ /* Rounds 8-11 */
+ movdqu 2*16(DATA_PTR), MSG2
+ pshufb SHUF_MASK, MSG2
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1rnds4 $0, E0, ABCD
+ sha1msg1 MSG2, MSG1
+ pxor MSG2, MSG0
+
+ /* Rounds 12-15 */
+ movdqu 3*16(DATA_PTR), MSG3
+ pshufb SHUF_MASK, MSG3
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG3, MSG0
+ sha1rnds4 $0, E1, ABCD
+ sha1msg1 MSG3, MSG2
+ pxor MSG3, MSG1
+
+ /* Rounds 16-19 */
+ sha1nexte MSG0, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG0, MSG1
+ sha1rnds4 $0, E0, ABCD
+ sha1msg1 MSG0, MSG3
+ pxor MSG0, MSG2
+
+ /* Rounds 20-23 */
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG1, MSG2
+ sha1rnds4 $1, E1, ABCD
+ sha1msg1 MSG1, MSG0
+ pxor MSG1, MSG3
+
+ /* Rounds 24-27 */
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG2, MSG3
+ sha1rnds4 $1, E0, ABCD
+ sha1msg1 MSG2, MSG1
+ pxor MSG2, MSG0
+
+ /* Rounds 28-31 */
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG3, MSG0
+ sha1rnds4 $1, E1, ABCD
+ sha1msg1 MSG3, MSG2
+ pxor MSG3, MSG1
+
+ /* Rounds 32-35 */
+ sha1nexte MSG0, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG0, MSG1
+ sha1rnds4 $1, E0, ABCD
+ sha1msg1 MSG0, MSG3
+ pxor MSG0, MSG2
+
+ /* Rounds 36-39 */
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG1, MSG2
+ sha1rnds4 $1, E1, ABCD
+ sha1msg1 MSG1, MSG0
+ pxor MSG1, MSG3
+
+ /* Rounds 40-43 */
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG2, MSG3
+ sha1rnds4 $2, E0, ABCD
+ sha1msg1 MSG2, MSG1
+ pxor MSG2, MSG0
+
+ /* Rounds 44-47 */
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG3, MSG0
+ sha1rnds4 $2, E1, ABCD
+ sha1msg1 MSG3, MSG2
+ pxor MSG3, MSG1
+
+ /* Rounds 48-51 */
+ sha1nexte MSG0, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG0, MSG1
+ sha1rnds4 $2, E0, ABCD
+ sha1msg1 MSG0, MSG3
+ pxor MSG0, MSG2
+
+ /* Rounds 52-55 */
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG1, MSG2
+ sha1rnds4 $2, E1, ABCD
+ sha1msg1 MSG1, MSG0
+ pxor MSG1, MSG3
+
+ /* Rounds 56-59 */
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG2, MSG3
+ sha1rnds4 $2, E0, ABCD
+ sha1msg1 MSG2, MSG1
+ pxor MSG2, MSG0
+
+ /* Rounds 60-63 */
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG3, MSG0
+ sha1rnds4 $3, E1, ABCD
+ sha1msg1 MSG3, MSG2
+ pxor MSG3, MSG1
+
+ /* Rounds 64-67 */
+ sha1nexte MSG0, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG0, MSG1
+ sha1rnds4 $3, E0, ABCD
+ sha1msg1 MSG0, MSG3
+ pxor MSG0, MSG2
+
+ /* Rounds 68-71 */
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG1, MSG2
+ sha1rnds4 $3, E1, ABCD
+ pxor MSG1, MSG3
+
+ /* Rounds 72-75 */
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG2, MSG3
+ sha1rnds4 $3, E0, ABCD
+
+ /* Rounds 76-79 */
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1rnds4 $3, E1, ABCD
+
+ /* Add current hash values with previously saved */
+ sha1nexte (0*16)(%rsp), E0
+ paddd (1*16)(%rsp), ABCD
+
+ /* Increment data pointer and loop if more to process */
+ add $64, DATA_PTR
+ cmp NUM_BLKS, DATA_PTR
+ jne .Lloop0
+
+ /* Write hash values back in the correct order */
+ pshufd $0x1B, ABCD, ABCD
+ movdqu ABCD, 0*16(DIGEST_PTR)
+ pextrd $3, E0, 1*16(DIGEST_PTR)
+
+.Ldone_hash:
+ mov %rbp, %rsp
+ pop %rbp
+
+ RET
+SYM_FUNC_END(sha1_ni_transform)
+
+.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
+.align 16
+PSHUFFLE_BYTE_FLIP_MASK:
+ .octa 0x000102030405060708090a0b0c0d0e0f
+
+.section .rodata.cst16.UPPER_WORD_MASK, "aM", @progbits, 16
+.align 16
+UPPER_WORD_MASK:
+ .octa 0xFFFFFFFF000000000000000000000000
diff --git a/lib/crypto/x86/sha1-ssse3-and-avx.S b/lib/crypto/x86/sha1-ssse3-and-avx.S
new file mode 100644
index 000000000000..78b48cb09c5b
--- /dev/null
+++ b/lib/crypto/x86/sha1-ssse3-and-avx.S
@@ -0,0 +1,551 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * This is a SIMD SHA-1 implementation. It requires the Intel(R) Supplemental
+ * SSE3 instruction set extensions introduced in Intel Core Microarchitecture
+ * processors. CPUs supporting Intel(R) AVX extensions will get an additional
+ * boost.
+ *
+ * This work was inspired by the vectorized implementation of Dean Gaudet.
+ * Additional information on it can be found at:
+ * http://www.arctic.org/~dean/crypto/sha1.html
+ *
+ * It was improved upon with more efficient vectorization of the message
+ * scheduling. This implementation has also been optimized for all current and
+ * several future generations of Intel CPUs.
+ *
+ * See this article for more information about the implementation details:
+ * http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1/
+ *
+ * Copyright (C) 2010, Intel Corp.
+ * Authors: Maxim Locktyukhin <maxim.locktyukhin@intel.com>
+ * Ronen Zohar <ronen.zohar@intel.com>
+ *
+ * Converted to AT&T syntax and adapted for inclusion in the Linux kernel:
+ * Author: Mathias Krause <minipli@googlemail.com>
+ */
+
+#include <linux/linkage.h>
+
+#define CTX %rdi // arg1
+#define BUF %rsi // arg2
+#define CNT %rdx // arg3
+
+#define REG_A %ecx
+#define REG_B %esi
+#define REG_C %edi
+#define REG_D %r12d
+#define REG_E %edx
+
+#define REG_T1 %eax
+#define REG_T2 %ebx
+
+#define K_BASE %r8
+#define HASH_PTR %r9
+#define BUFFER_PTR %r10
+#define BUFFER_END %r11
+
+#define W_TMP1 %xmm0
+#define W_TMP2 %xmm9
+
+#define W0 %xmm1
+#define W4 %xmm2
+#define W8 %xmm3
+#define W12 %xmm4
+#define W16 %xmm5
+#define W20 %xmm6
+#define W24 %xmm7
+#define W28 %xmm8
+
+#define XMM_SHUFB_BSWAP %xmm10
+
+/* we keep window of 64 w[i]+K pre-calculated values in a circular buffer */
+#define WK(t) (((t) & 15) * 4)(%rsp)
+#define W_PRECALC_AHEAD 16
+
+/*
+ * This macro implements the SHA-1 function's body for single 64-byte block
+ * param: function's name
+ */
+.macro SHA1_VECTOR_ASM name
+ SYM_FUNC_START(\name)
+
+ push %rbx
+ push %r12
+ push %rbp
+ mov %rsp, %rbp
+
+ sub $64, %rsp # allocate workspace
+ and $~15, %rsp # align stack
+
+ mov CTX, HASH_PTR
+ mov BUF, BUFFER_PTR
+
+ shl $6, CNT # multiply by 64
+ add BUF, CNT
+ mov CNT, BUFFER_END
+
+ lea K_XMM_AR(%rip), K_BASE
+ xmm_mov BSWAP_SHUFB_CTL(%rip), XMM_SHUFB_BSWAP
+
+ SHA1_PIPELINED_MAIN_BODY
+
+ # cleanup workspace
+ mov $8, %ecx
+ mov %rsp, %rdi
+ xor %eax, %eax
+ rep stosq
+
+ mov %rbp, %rsp # deallocate workspace
+ pop %rbp
+ pop %r12
+ pop %rbx
+ RET
+
+ SYM_FUNC_END(\name)
+.endm
+
+/*
+ * This macro implements 80 rounds of SHA-1 for one 64-byte block
+ */
+.macro SHA1_PIPELINED_MAIN_BODY
+ INIT_REGALLOC
+
+ mov (HASH_PTR), A
+ mov 4(HASH_PTR), B
+ mov 8(HASH_PTR), C
+ mov 12(HASH_PTR), D
+ mov 16(HASH_PTR), E
+
+ .set i, 0
+ .rept W_PRECALC_AHEAD
+ W_PRECALC i
+ .set i, (i+1)
+ .endr
+
+.align 4
+1:
+ RR F1,A,B,C,D,E,0
+ RR F1,D,E,A,B,C,2
+ RR F1,B,C,D,E,A,4
+ RR F1,E,A,B,C,D,6
+ RR F1,C,D,E,A,B,8
+
+ RR F1,A,B,C,D,E,10
+ RR F1,D,E,A,B,C,12
+ RR F1,B,C,D,E,A,14
+ RR F1,E,A,B,C,D,16
+ RR F1,C,D,E,A,B,18
+
+ RR F2,A,B,C,D,E,20
+ RR F2,D,E,A,B,C,22
+ RR F2,B,C,D,E,A,24
+ RR F2,E,A,B,C,D,26
+ RR F2,C,D,E,A,B,28
+
+ RR F2,A,B,C,D,E,30
+ RR F2,D,E,A,B,C,32
+ RR F2,B,C,D,E,A,34
+ RR F2,E,A,B,C,D,36
+ RR F2,C,D,E,A,B,38
+
+ RR F3,A,B,C,D,E,40
+ RR F3,D,E,A,B,C,42
+ RR F3,B,C,D,E,A,44
+ RR F3,E,A,B,C,D,46
+ RR F3,C,D,E,A,B,48
+
+ RR F3,A,B,C,D,E,50
+ RR F3,D,E,A,B,C,52
+ RR F3,B,C,D,E,A,54
+ RR F3,E,A,B,C,D,56
+ RR F3,C,D,E,A,B,58
+
+ add $64, BUFFER_PTR # move to the next 64-byte block
+ cmp BUFFER_END, BUFFER_PTR # if the current is the last one use
+ cmovae K_BASE, BUFFER_PTR # dummy source to avoid buffer overrun
+
+ RR F4,A,B,C,D,E,60
+ RR F4,D,E,A,B,C,62
+ RR F4,B,C,D,E,A,64
+ RR F4,E,A,B,C,D,66
+ RR F4,C,D,E,A,B,68
+
+ RR F4,A,B,C,D,E,70
+ RR F4,D,E,A,B,C,72
+ RR F4,B,C,D,E,A,74
+ RR F4,E,A,B,C,D,76
+ RR F4,C,D,E,A,B,78
+
+ UPDATE_HASH (HASH_PTR), A
+ UPDATE_HASH 4(HASH_PTR), B
+ UPDATE_HASH 8(HASH_PTR), C
+ UPDATE_HASH 12(HASH_PTR), D
+ UPDATE_HASH 16(HASH_PTR), E
+
+ RESTORE_RENAMED_REGS
+ cmp K_BASE, BUFFER_PTR # K_BASE means, we reached the end
+ jne 1b
+.endm
+
+.macro INIT_REGALLOC
+ .set A, REG_A
+ .set B, REG_B
+ .set C, REG_C
+ .set D, REG_D
+ .set E, REG_E
+ .set T1, REG_T1
+ .set T2, REG_T2
+.endm
+
+.macro RESTORE_RENAMED_REGS
+ # order is important (REG_C is where it should be)
+ mov B, REG_B
+ mov D, REG_D
+ mov A, REG_A
+ mov E, REG_E
+.endm
+
+.macro SWAP_REG_NAMES a, b
+ .set _T, \a
+ .set \a, \b
+ .set \b, _T
+.endm
+
+.macro F1 b, c, d
+ mov \c, T1
+ SWAP_REG_NAMES \c, T1
+ xor \d, T1
+ and \b, T1
+ xor \d, T1
+.endm
+
+.macro F2 b, c, d
+ mov \d, T1
+ SWAP_REG_NAMES \d, T1
+ xor \c, T1
+ xor \b, T1
+.endm
+
+.macro F3 b, c ,d
+ mov \c, T1
+ SWAP_REG_NAMES \c, T1
+ mov \b, T2
+ or \b, T1
+ and \c, T2
+ and \d, T1
+ or T2, T1
+.endm
+
+.macro F4 b, c, d
+ F2 \b, \c, \d
+.endm
+
+.macro UPDATE_HASH hash, val
+ add \hash, \val
+ mov \val, \hash
+.endm
+
+/*
+ * RR does two rounds of SHA-1 back to back with W[] pre-calc
+ * t1 = F(b, c, d); e += w(i)
+ * e += t1; b <<= 30; d += w(i+1);
+ * t1 = F(a, b, c);
+ * d += t1; a <<= 5;
+ * e += a;
+ * t1 = e; a >>= 7;
+ * t1 <<= 5;
+ * d += t1;
+ */
+.macro RR F, a, b, c, d, e, round
+ add WK(\round), \e
+ \F \b, \c, \d # t1 = F(b, c, d);
+ W_PRECALC (\round + W_PRECALC_AHEAD)
+ rol $30, \b
+ add T1, \e
+ add WK(\round + 1), \d
+
+ \F \a, \b, \c
+ W_PRECALC (\round + W_PRECALC_AHEAD + 1)
+ rol $5, \a
+ add \a, \e
+ add T1, \d
+ ror $7, \a # (a <<r 5) >>r 7) => a <<r 30)
+
+ mov \e, T1
+ SWAP_REG_NAMES \e, T1
+
+ rol $5, T1
+ add T1, \d
+
+ # write: \a, \b
+ # rotate: \a<=\d, \b<=\e, \c<=\a, \d<=\b, \e<=\c
+.endm
+
+.macro W_PRECALC r
+ .set i, \r
+
+ .if (i < 20)
+ .set K_XMM, 0
+ .elseif (i < 40)
+ .set K_XMM, 16
+ .elseif (i < 60)
+ .set K_XMM, 32
+ .elseif (i < 80)
+ .set K_XMM, 48
+ .endif
+
+ .if ((i < 16) || ((i >= 80) && (i < (80 + W_PRECALC_AHEAD))))
+ .set i, ((\r) % 80) # pre-compute for the next iteration
+ .if (i == 0)
+ W_PRECALC_RESET
+ .endif
+ W_PRECALC_00_15
+ .elseif (i<32)
+ W_PRECALC_16_31
+ .elseif (i < 80) // rounds 32-79
+ W_PRECALC_32_79
+ .endif
+.endm
+
+.macro W_PRECALC_RESET
+ .set W, W0
+ .set W_minus_04, W4
+ .set W_minus_08, W8
+ .set W_minus_12, W12
+ .set W_minus_16, W16
+ .set W_minus_20, W20
+ .set W_minus_24, W24
+ .set W_minus_28, W28
+ .set W_minus_32, W
+.endm
+
+.macro W_PRECALC_ROTATE
+ .set W_minus_32, W_minus_28
+ .set W_minus_28, W_minus_24
+ .set W_minus_24, W_minus_20
+ .set W_minus_20, W_minus_16
+ .set W_minus_16, W_minus_12
+ .set W_minus_12, W_minus_08
+ .set W_minus_08, W_minus_04
+ .set W_minus_04, W
+ .set W, W_minus_32
+.endm
+
+.macro W_PRECALC_SSSE3
+
+.macro W_PRECALC_00_15
+ W_PRECALC_00_15_SSSE3
+.endm
+.macro W_PRECALC_16_31
+ W_PRECALC_16_31_SSSE3
+.endm
+.macro W_PRECALC_32_79
+ W_PRECALC_32_79_SSSE3
+.endm
+
+/* message scheduling pre-compute for rounds 0-15 */
+.macro W_PRECALC_00_15_SSSE3
+ .if ((i & 3) == 0)
+ movdqu (i*4)(BUFFER_PTR), W_TMP1
+ .elseif ((i & 3) == 1)
+ pshufb XMM_SHUFB_BSWAP, W_TMP1
+ movdqa W_TMP1, W
+ .elseif ((i & 3) == 2)
+ paddd (K_BASE), W_TMP1
+ .elseif ((i & 3) == 3)
+ movdqa W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+/* message scheduling pre-compute for rounds 16-31
+ *
+ * - calculating last 32 w[i] values in 8 XMM registers
+ * - pre-calculate K+w[i] values and store to mem, for later load by ALU add
+ * instruction
+ *
+ * some "heavy-lifting" vectorization for rounds 16-31 due to w[i]->w[i-3]
+ * dependency, but improves for 32-79
+ */
+.macro W_PRECALC_16_31_SSSE3
+ # blended scheduling of vector and scalar instruction streams, one 4-wide
+ # vector iteration / 4 scalar rounds
+ .if ((i & 3) == 0)
+ movdqa W_minus_12, W
+ palignr $8, W_minus_16, W # w[i-14]
+ movdqa W_minus_04, W_TMP1
+ psrldq $4, W_TMP1 # w[i-3]
+ pxor W_minus_08, W
+ .elseif ((i & 3) == 1)
+ pxor W_minus_16, W_TMP1
+ pxor W_TMP1, W
+ movdqa W, W_TMP2
+ movdqa W, W_TMP1
+ pslldq $12, W_TMP2
+ .elseif ((i & 3) == 2)
+ psrld $31, W
+ pslld $1, W_TMP1
+ por W, W_TMP1
+ movdqa W_TMP2, W
+ psrld $30, W_TMP2
+ pslld $2, W
+ .elseif ((i & 3) == 3)
+ pxor W, W_TMP1
+ pxor W_TMP2, W_TMP1
+ movdqa W_TMP1, W
+ paddd K_XMM(K_BASE), W_TMP1
+ movdqa W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+/* message scheduling pre-compute for rounds 32-79
+ *
+ * in SHA-1 specification: w[i] = (w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16]) rol 1
+ * instead we do equal: w[i] = (w[i-6] ^ w[i-16] ^ w[i-28] ^ w[i-32]) rol 2
+ * allows more efficient vectorization since w[i]=>w[i-3] dependency is broken
+ */
+.macro W_PRECALC_32_79_SSSE3
+ .if ((i & 3) == 0)
+ movdqa W_minus_04, W_TMP1
+ pxor W_minus_28, W # W is W_minus_32 before xor
+ palignr $8, W_minus_08, W_TMP1
+ .elseif ((i & 3) == 1)
+ pxor W_minus_16, W
+ pxor W_TMP1, W
+ movdqa W, W_TMP1
+ .elseif ((i & 3) == 2)
+ psrld $30, W
+ pslld $2, W_TMP1
+ por W, W_TMP1
+ .elseif ((i & 3) == 3)
+ movdqa W_TMP1, W
+ paddd K_XMM(K_BASE), W_TMP1
+ movdqa W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+.endm // W_PRECALC_SSSE3
+
+
+#define K1 0x5a827999
+#define K2 0x6ed9eba1
+#define K3 0x8f1bbcdc
+#define K4 0xca62c1d6
+
+.section .rodata
+.align 16
+
+K_XMM_AR:
+ .long K1, K1, K1, K1
+ .long K2, K2, K2, K2
+ .long K3, K3, K3, K3
+ .long K4, K4, K4, K4
+
+BSWAP_SHUFB_CTL:
+ .long 0x00010203
+ .long 0x04050607
+ .long 0x08090a0b
+ .long 0x0c0d0e0f
+
+
+.section .text
+
+W_PRECALC_SSSE3
+.macro xmm_mov a, b
+ movdqu \a,\b
+.endm
+
+/*
+ * SSSE3 optimized implementation:
+ *
+ * void sha1_transform_ssse3(struct sha1_block_state *state,
+ * const u8 *data, size_t nblocks);
+ */
+SHA1_VECTOR_ASM sha1_transform_ssse3
+
+.macro W_PRECALC_AVX
+
+.purgem W_PRECALC_00_15
+.macro W_PRECALC_00_15
+ W_PRECALC_00_15_AVX
+.endm
+.purgem W_PRECALC_16_31
+.macro W_PRECALC_16_31
+ W_PRECALC_16_31_AVX
+.endm
+.purgem W_PRECALC_32_79
+.macro W_PRECALC_32_79
+ W_PRECALC_32_79_AVX
+.endm
+
+.macro W_PRECALC_00_15_AVX
+ .if ((i & 3) == 0)
+ vmovdqu (i*4)(BUFFER_PTR), W_TMP1
+ .elseif ((i & 3) == 1)
+ vpshufb XMM_SHUFB_BSWAP, W_TMP1, W
+ .elseif ((i & 3) == 2)
+ vpaddd (K_BASE), W, W_TMP1
+ .elseif ((i & 3) == 3)
+ vmovdqa W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+.macro W_PRECALC_16_31_AVX
+ .if ((i & 3) == 0)
+ vpalignr $8, W_minus_16, W_minus_12, W # w[i-14]
+ vpsrldq $4, W_minus_04, W_TMP1 # w[i-3]
+ vpxor W_minus_08, W, W
+ vpxor W_minus_16, W_TMP1, W_TMP1
+ .elseif ((i & 3) == 1)
+ vpxor W_TMP1, W, W
+ vpslldq $12, W, W_TMP2
+ vpslld $1, W, W_TMP1
+ .elseif ((i & 3) == 2)
+ vpsrld $31, W, W
+ vpor W, W_TMP1, W_TMP1
+ vpslld $2, W_TMP2, W
+ vpsrld $30, W_TMP2, W_TMP2
+ .elseif ((i & 3) == 3)
+ vpxor W, W_TMP1, W_TMP1
+ vpxor W_TMP2, W_TMP1, W
+ vpaddd K_XMM(K_BASE), W, W_TMP1
+ vmovdqu W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+.macro W_PRECALC_32_79_AVX
+ .if ((i & 3) == 0)
+ vpalignr $8, W_minus_08, W_minus_04, W_TMP1
+ vpxor W_minus_28, W, W # W is W_minus_32 before xor
+ .elseif ((i & 3) == 1)
+ vpxor W_minus_16, W_TMP1, W_TMP1
+ vpxor W_TMP1, W, W
+ .elseif ((i & 3) == 2)
+ vpslld $2, W, W_TMP1
+ vpsrld $30, W, W
+ vpor W, W_TMP1, W
+ .elseif ((i & 3) == 3)
+ vpaddd K_XMM(K_BASE), W, W_TMP1
+ vmovdqu W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+.endm // W_PRECALC_AVX
+
+W_PRECALC_AVX
+.purgem xmm_mov
+.macro xmm_mov a, b
+ vmovdqu \a,\b
+.endm
+
+
+/* AVX optimized implementation:
+ * void sha1_transform_avx(struct sha1_block_state *state,
+ * const u8 *data, size_t nblocks);
+ */
+SHA1_VECTOR_ASM sha1_transform_avx
diff --git a/lib/crypto/x86/sha1.h b/lib/crypto/x86/sha1.h
new file mode 100644
index 000000000000..e308379d89bc
--- /dev/null
+++ b/lib/crypto/x86/sha1.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SHA-1 optimized for x86_64
+ *
+ * Copyright 2025 Google LLC
+ */
+#include <asm/fpu/api.h>
+#include <linux/static_call.h>
+
+DEFINE_STATIC_CALL(sha1_blocks_x86, sha1_blocks_generic);
+
+#define DEFINE_X86_SHA1_FN(c_fn, asm_fn) \
+ asmlinkage void asm_fn(struct sha1_block_state *state, \
+ const u8 *data, size_t nblocks); \
+ static void c_fn(struct sha1_block_state *state, \
+ const u8 *data, size_t nblocks) \
+ { \
+ if (likely(irq_fpu_usable())) { \
+ kernel_fpu_begin(); \
+ asm_fn(state, data, nblocks); \
+ kernel_fpu_end(); \
+ } else { \
+ sha1_blocks_generic(state, data, nblocks); \
+ } \
+ }
+
+DEFINE_X86_SHA1_FN(sha1_blocks_ssse3, sha1_transform_ssse3);
+DEFINE_X86_SHA1_FN(sha1_blocks_avx, sha1_transform_avx);
+DEFINE_X86_SHA1_FN(sha1_blocks_ni, sha1_ni_transform);
+
+#define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */
+
+asmlinkage void sha1_transform_avx2(struct sha1_block_state *state,
+ const u8 *data, size_t nblocks);
+static void sha1_blocks_avx2(struct sha1_block_state *state,
+ const u8 *data, size_t nblocks)
+{
+ if (likely(irq_fpu_usable())) {
+ kernel_fpu_begin();
+ /* Select the optimal transform based on the number of blocks */
+ if (nblocks >= SHA1_AVX2_BLOCK_OPTSIZE)
+ sha1_transform_avx2(state, data, nblocks);
+ else
+ sha1_transform_avx(state, data, nblocks);
+ kernel_fpu_end();
+ } else {
+ sha1_blocks_generic(state, data, nblocks);
+ }
+}
+
+static void sha1_blocks(struct sha1_block_state *state,
+ const u8 *data, size_t nblocks)
+{
+ static_call(sha1_blocks_x86)(state, data, nblocks);
+}
+
+#define sha1_mod_init_arch sha1_mod_init_arch
+static inline void sha1_mod_init_arch(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SHA_NI)) {
+ static_call_update(sha1_blocks_x86, sha1_blocks_ni);
+ } else if (cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ NULL) &&
+ boot_cpu_has(X86_FEATURE_AVX)) {
+ if (boot_cpu_has(X86_FEATURE_AVX2) &&
+ boot_cpu_has(X86_FEATURE_BMI1) &&
+ boot_cpu_has(X86_FEATURE_BMI2))
+ static_call_update(sha1_blocks_x86, sha1_blocks_avx2);
+ else
+ static_call_update(sha1_blocks_x86, sha1_blocks_avx);
+ } else if (boot_cpu_has(X86_FEATURE_SSSE3)) {
+ static_call_update(sha1_blocks_x86, sha1_blocks_ssse3);
+ }
+}