| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * SM4 Cipher Algorithm, AES-NI/AVX optimized. |
| * as specified in |
| * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html |
| * |
| * Copyright (C) 2018 Markku-Juhani O. Saarinen <mjos@iki.fi> |
| * Copyright (C) 2020 Jussi Kivilinna <jussi.kivilinna@iki.fi> |
| * Copyright (c) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com> |
| */ |
| |
| /* Based on SM4 AES-NI work by libgcrypt and Markku-Juhani O. Saarinen at: |
| * https://github.com/mjosaarinen/sm4ni |
| */ |
| |
| #include <linux/linkage.h> |
| #include <asm/frame.h> |
| |
| #define rRIP (%rip) |
| |
| #define RX0 %xmm0 |
| #define RX1 %xmm1 |
| #define MASK_4BIT %xmm2 |
| #define RTMP0 %xmm3 |
| #define RTMP1 %xmm4 |
| #define RTMP2 %xmm5 |
| #define RTMP3 %xmm6 |
| #define RTMP4 %xmm7 |
| |
| #define RA0 %xmm8 |
| #define RA1 %xmm9 |
| #define RA2 %xmm10 |
| #define RA3 %xmm11 |
| |
| #define RB0 %xmm12 |
| #define RB1 %xmm13 |
| #define RB2 %xmm14 |
| #define RB3 %xmm15 |
| |
| #define RNOT %xmm0 |
| #define RBSWAP %xmm1 |
| |
| |
| /* Transpose four 32-bit words between 128-bit vectors. */ |
| #define transpose_4x4(x0, x1, x2, x3, t1, t2) \ |
| vpunpckhdq x1, x0, t2; \ |
| vpunpckldq x1, x0, x0; \ |
| \ |
| vpunpckldq x3, x2, t1; \ |
| vpunpckhdq x3, x2, x2; \ |
| \ |
| vpunpckhqdq t1, x0, x1; \ |
| vpunpcklqdq t1, x0, x0; \ |
| \ |
| vpunpckhqdq x2, t2, x3; \ |
| vpunpcklqdq x2, t2, x2; |
| |
| /* pre-SubByte transform. */ |
| #define transform_pre(x, lo_t, hi_t, mask4bit, tmp0) \ |
| vpand x, mask4bit, tmp0; \ |
| vpandn x, mask4bit, x; \ |
| vpsrld $4, x, x; \ |
| \ |
| vpshufb tmp0, lo_t, tmp0; \ |
| vpshufb x, hi_t, x; \ |
| vpxor tmp0, x, x; |
| |
| /* post-SubByte transform. Note: x has been XOR'ed with mask4bit by |
| * 'vaeslastenc' instruction. |
| */ |
| #define transform_post(x, lo_t, hi_t, mask4bit, tmp0) \ |
| vpandn mask4bit, x, tmp0; \ |
| vpsrld $4, x, x; \ |
| vpand x, mask4bit, x; \ |
| \ |
| vpshufb tmp0, lo_t, tmp0; \ |
| vpshufb x, hi_t, x; \ |
| vpxor tmp0, x, x; |
| |
| |
| .section .rodata.cst16, "aM", @progbits, 16 |
| .align 16 |
| |
| /* |
| * Following four affine transform look-up tables are from work by |
| * Markku-Juhani O. Saarinen, at https://github.com/mjosaarinen/sm4ni |
| * |
| * These allow exposing SM4 S-Box from AES SubByte. |
| */ |
| |
| /* pre-SubByte affine transform, from SM4 field to AES field. */ |
| .Lpre_tf_lo_s: |
| .quad 0x9197E2E474720701, 0xC7C1B4B222245157 |
| .Lpre_tf_hi_s: |
| .quad 0xE240AB09EB49A200, 0xF052B91BF95BB012 |
| |
| /* post-SubByte affine transform, from AES field to SM4 field. */ |
| .Lpost_tf_lo_s: |
| .quad 0x5B67F2CEA19D0834, 0xEDD14478172BBE82 |
| .Lpost_tf_hi_s: |
| .quad 0xAE7201DD73AFDC00, 0x11CDBE62CC1063BF |
| |
| /* For isolating SubBytes from AESENCLAST, inverse shift row */ |
| .Linv_shift_row: |
| .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b |
| .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03 |
| |
| /* Inverse shift row + Rotate left by 8 bits on 32-bit words with vpshufb */ |
| .Linv_shift_row_rol_8: |
| .byte 0x07, 0x00, 0x0d, 0x0a, 0x0b, 0x04, 0x01, 0x0e |
| .byte 0x0f, 0x08, 0x05, 0x02, 0x03, 0x0c, 0x09, 0x06 |
| |
| /* Inverse shift row + Rotate left by 16 bits on 32-bit words with vpshufb */ |
| .Linv_shift_row_rol_16: |
| .byte 0x0a, 0x07, 0x00, 0x0d, 0x0e, 0x0b, 0x04, 0x01 |
| .byte 0x02, 0x0f, 0x08, 0x05, 0x06, 0x03, 0x0c, 0x09 |
| |
| /* Inverse shift row + Rotate left by 24 bits on 32-bit words with vpshufb */ |
| .Linv_shift_row_rol_24: |
| .byte 0x0d, 0x0a, 0x07, 0x00, 0x01, 0x0e, 0x0b, 0x04 |
| .byte 0x05, 0x02, 0x0f, 0x08, 0x09, 0x06, 0x03, 0x0c |
| |
| /* For CTR-mode IV byteswap */ |
| .Lbswap128_mask: |
| .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 |
| |
| /* For input word byte-swap */ |
| .Lbswap32_mask: |
| .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 |
| |
| .align 4 |
| /* 4-bit mask */ |
| .L0f0f0f0f: |
| .long 0x0f0f0f0f |
| |
| /* 12 bytes, only for padding */ |
| .Lpadding_deadbeef: |
| .long 0xdeadbeef, 0xdeadbeef, 0xdeadbeef |
| |
| |
| .text |
| .align 16 |
| |
| /* |
| * void sm4_aesni_avx_crypt4(const u32 *rk, u8 *dst, |
| * const u8 *src, int nblocks) |
| */ |
| .align 8 |
| SYM_FUNC_START(sm4_aesni_avx_crypt4) |
| /* input: |
| * %rdi: round key array, CTX |
| * %rsi: dst (1..4 blocks) |
| * %rdx: src (1..4 blocks) |
| * %rcx: num blocks (1..4) |
| */ |
| FRAME_BEGIN |
| |
| vmovdqu 0*16(%rdx), RA0; |
| vmovdqa RA0, RA1; |
| vmovdqa RA0, RA2; |
| vmovdqa RA0, RA3; |
| cmpq $2, %rcx; |
| jb .Lblk4_load_input_done; |
| vmovdqu 1*16(%rdx), RA1; |
| je .Lblk4_load_input_done; |
| vmovdqu 2*16(%rdx), RA2; |
| cmpq $3, %rcx; |
| je .Lblk4_load_input_done; |
| vmovdqu 3*16(%rdx), RA3; |
| |
| .Lblk4_load_input_done: |
| |
| vmovdqa .Lbswap32_mask rRIP, RTMP2; |
| vpshufb RTMP2, RA0, RA0; |
| vpshufb RTMP2, RA1, RA1; |
| vpshufb RTMP2, RA2, RA2; |
| vpshufb RTMP2, RA3, RA3; |
| |
| vbroadcastss .L0f0f0f0f rRIP, MASK_4BIT; |
| vmovdqa .Lpre_tf_lo_s rRIP, RTMP4; |
| vmovdqa .Lpre_tf_hi_s rRIP, RB0; |
| vmovdqa .Lpost_tf_lo_s rRIP, RB1; |
| vmovdqa .Lpost_tf_hi_s rRIP, RB2; |
| vmovdqa .Linv_shift_row rRIP, RB3; |
| vmovdqa .Linv_shift_row_rol_8 rRIP, RTMP2; |
| vmovdqa .Linv_shift_row_rol_16 rRIP, RTMP3; |
| transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1); |
| |
| #define ROUND(round, s0, s1, s2, s3) \ |
| vbroadcastss (4*(round))(%rdi), RX0; \ |
| vpxor s1, RX0, RX0; \ |
| vpxor s2, RX0, RX0; \ |
| vpxor s3, RX0, RX0; /* s1 ^ s2 ^ s3 ^ rk */ \ |
| \ |
| /* sbox, non-linear part */ \ |
| transform_pre(RX0, RTMP4, RB0, MASK_4BIT, RTMP0); \ |
| vaesenclast MASK_4BIT, RX0, RX0; \ |
| transform_post(RX0, RB1, RB2, MASK_4BIT, RTMP0); \ |
| \ |
| /* linear part */ \ |
| vpshufb RB3, RX0, RTMP0; \ |
| vpxor RTMP0, s0, s0; /* s0 ^ x */ \ |
| vpshufb RTMP2, RX0, RTMP1; \ |
| vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) */ \ |
| vpshufb RTMP3, RX0, RTMP1; \ |
| vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) ^ rol(x,16) */ \ |
| vpshufb .Linv_shift_row_rol_24 rRIP, RX0, RTMP1; \ |
| vpxor RTMP1, s0, s0; /* s0 ^ x ^ rol(x,24) */ \ |
| vpslld $2, RTMP0, RTMP1; \ |
| vpsrld $30, RTMP0, RTMP0; \ |
| vpxor RTMP0, s0, s0; \ |
| /* s0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \ |
| vpxor RTMP1, s0, s0; |
| |
| leaq (32*4)(%rdi), %rax; |
| .align 16 |
| .Lroundloop_blk4: |
| ROUND(0, RA0, RA1, RA2, RA3); |
| ROUND(1, RA1, RA2, RA3, RA0); |
| ROUND(2, RA2, RA3, RA0, RA1); |
| ROUND(3, RA3, RA0, RA1, RA2); |
| leaq (4*4)(%rdi), %rdi; |
| cmpq %rax, %rdi; |
| jne .Lroundloop_blk4; |
| |
| #undef ROUND |
| |
| vmovdqa .Lbswap128_mask rRIP, RTMP2; |
| |
| transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1); |
| vpshufb RTMP2, RA0, RA0; |
| vpshufb RTMP2, RA1, RA1; |
| vpshufb RTMP2, RA2, RA2; |
| vpshufb RTMP2, RA3, RA3; |
| |
| vmovdqu RA0, 0*16(%rsi); |
| cmpq $2, %rcx; |
| jb .Lblk4_store_output_done; |
| vmovdqu RA1, 1*16(%rsi); |
| je .Lblk4_store_output_done; |
| vmovdqu RA2, 2*16(%rsi); |
| cmpq $3, %rcx; |
| je .Lblk4_store_output_done; |
| vmovdqu RA3, 3*16(%rsi); |
| |
| .Lblk4_store_output_done: |
| vzeroall; |
| FRAME_END |
| ret; |
| SYM_FUNC_END(sm4_aesni_avx_crypt4) |
| |
| .align 8 |
| SYM_FUNC_START_LOCAL(__sm4_crypt_blk8) |
| /* input: |
| * %rdi: round key array, CTX |
| * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: eight parallel |
| * plaintext blocks |
| * output: |
| * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: eight parallel |
| * ciphertext blocks |
| */ |
| FRAME_BEGIN |
| |
| vmovdqa .Lbswap32_mask rRIP, RTMP2; |
| vpshufb RTMP2, RA0, RA0; |
| vpshufb RTMP2, RA1, RA1; |
| vpshufb RTMP2, RA2, RA2; |
| vpshufb RTMP2, RA3, RA3; |
| vpshufb RTMP2, RB0, RB0; |
| vpshufb RTMP2, RB1, RB1; |
| vpshufb RTMP2, RB2, RB2; |
| vpshufb RTMP2, RB3, RB3; |
| |
| vbroadcastss .L0f0f0f0f rRIP, MASK_4BIT; |
| transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1); |
| transpose_4x4(RB0, RB1, RB2, RB3, RTMP0, RTMP1); |
| |
| #define ROUND(round, s0, s1, s2, s3, r0, r1, r2, r3) \ |
| vbroadcastss (4*(round))(%rdi), RX0; \ |
| vmovdqa .Lpre_tf_lo_s rRIP, RTMP4; \ |
| vmovdqa .Lpre_tf_hi_s rRIP, RTMP1; \ |
| vmovdqa RX0, RX1; \ |
| vpxor s1, RX0, RX0; \ |
| vpxor s2, RX0, RX0; \ |
| vpxor s3, RX0, RX0; /* s1 ^ s2 ^ s3 ^ rk */ \ |
| vmovdqa .Lpost_tf_lo_s rRIP, RTMP2; \ |
| vmovdqa .Lpost_tf_hi_s rRIP, RTMP3; \ |
| vpxor r1, RX1, RX1; \ |
| vpxor r2, RX1, RX1; \ |
| vpxor r3, RX1, RX1; /* r1 ^ r2 ^ r3 ^ rk */ \ |
| \ |
| /* sbox, non-linear part */ \ |
| transform_pre(RX0, RTMP4, RTMP1, MASK_4BIT, RTMP0); \ |
| transform_pre(RX1, RTMP4, RTMP1, MASK_4BIT, RTMP0); \ |
| vmovdqa .Linv_shift_row rRIP, RTMP4; \ |
| vaesenclast MASK_4BIT, RX0, RX0; \ |
| vaesenclast MASK_4BIT, RX1, RX1; \ |
| transform_post(RX0, RTMP2, RTMP3, MASK_4BIT, RTMP0); \ |
| transform_post(RX1, RTMP2, RTMP3, MASK_4BIT, RTMP0); \ |
| \ |
| /* linear part */ \ |
| vpshufb RTMP4, RX0, RTMP0; \ |
| vpxor RTMP0, s0, s0; /* s0 ^ x */ \ |
| vpshufb RTMP4, RX1, RTMP2; \ |
| vmovdqa .Linv_shift_row_rol_8 rRIP, RTMP4; \ |
| vpxor RTMP2, r0, r0; /* r0 ^ x */ \ |
| vpshufb RTMP4, RX0, RTMP1; \ |
| vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) */ \ |
| vpshufb RTMP4, RX1, RTMP3; \ |
| vmovdqa .Linv_shift_row_rol_16 rRIP, RTMP4; \ |
| vpxor RTMP3, RTMP2, RTMP2; /* x ^ rol(x,8) */ \ |
| vpshufb RTMP4, RX0, RTMP1; \ |
| vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) ^ rol(x,16) */ \ |
| vpshufb RTMP4, RX1, RTMP3; \ |
| vmovdqa .Linv_shift_row_rol_24 rRIP, RTMP4; \ |
| vpxor RTMP3, RTMP2, RTMP2; /* x ^ rol(x,8) ^ rol(x,16) */ \ |
| vpshufb RTMP4, RX0, RTMP1; \ |
| vpxor RTMP1, s0, s0; /* s0 ^ x ^ rol(x,24) */ \ |
| /* s0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \ |
| vpslld $2, RTMP0, RTMP1; \ |
| vpsrld $30, RTMP0, RTMP0; \ |
| vpxor RTMP0, s0, s0; \ |
| vpxor RTMP1, s0, s0; \ |
| vpshufb RTMP4, RX1, RTMP3; \ |
| vpxor RTMP3, r0, r0; /* r0 ^ x ^ rol(x,24) */ \ |
| /* r0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \ |
| vpslld $2, RTMP2, RTMP3; \ |
| vpsrld $30, RTMP2, RTMP2; \ |
| vpxor RTMP2, r0, r0; \ |
| vpxor RTMP3, r0, r0; |
| |
| leaq (32*4)(%rdi), %rax; |
| .align 16 |
| .Lroundloop_blk8: |
| ROUND(0, RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3); |
| ROUND(1, RA1, RA2, RA3, RA0, RB1, RB2, RB3, RB0); |
| ROUND(2, RA2, RA3, RA0, RA1, RB2, RB3, RB0, RB1); |
| ROUND(3, RA3, RA0, RA1, RA2, RB3, RB0, RB1, RB2); |
| leaq (4*4)(%rdi), %rdi; |
| cmpq %rax, %rdi; |
| jne .Lroundloop_blk8; |
| |
| #undef ROUND |
| |
| vmovdqa .Lbswap128_mask rRIP, RTMP2; |
| |
| transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1); |
| transpose_4x4(RB0, RB1, RB2, RB3, RTMP0, RTMP1); |
| vpshufb RTMP2, RA0, RA0; |
| vpshufb RTMP2, RA1, RA1; |
| vpshufb RTMP2, RA2, RA2; |
| vpshufb RTMP2, RA3, RA3; |
| vpshufb RTMP2, RB0, RB0; |
| vpshufb RTMP2, RB1, RB1; |
| vpshufb RTMP2, RB2, RB2; |
| vpshufb RTMP2, RB3, RB3; |
| |
| FRAME_END |
| ret; |
| SYM_FUNC_END(__sm4_crypt_blk8) |
| |
| /* |
| * void sm4_aesni_avx_crypt8(const u32 *rk, u8 *dst, |
| * const u8 *src, int nblocks) |
| */ |
| .align 8 |
| SYM_FUNC_START(sm4_aesni_avx_crypt8) |
| /* input: |
| * %rdi: round key array, CTX |
| * %rsi: dst (1..8 blocks) |
| * %rdx: src (1..8 blocks) |
| * %rcx: num blocks (1..8) |
| */ |
| cmpq $5, %rcx; |
| jb sm4_aesni_avx_crypt4; |
| |
| FRAME_BEGIN |
| |
| vmovdqu (0 * 16)(%rdx), RA0; |
| vmovdqu (1 * 16)(%rdx), RA1; |
| vmovdqu (2 * 16)(%rdx), RA2; |
| vmovdqu (3 * 16)(%rdx), RA3; |
| vmovdqu (4 * 16)(%rdx), RB0; |
| vmovdqa RB0, RB1; |
| vmovdqa RB0, RB2; |
| vmovdqa RB0, RB3; |
| je .Lblk8_load_input_done; |
| vmovdqu (5 * 16)(%rdx), RB1; |
| cmpq $7, %rcx; |
| jb .Lblk8_load_input_done; |
| vmovdqu (6 * 16)(%rdx), RB2; |
| je .Lblk8_load_input_done; |
| vmovdqu (7 * 16)(%rdx), RB3; |
| |
| .Lblk8_load_input_done: |
| call __sm4_crypt_blk8; |
| |
| cmpq $6, %rcx; |
| vmovdqu RA0, (0 * 16)(%rsi); |
| vmovdqu RA1, (1 * 16)(%rsi); |
| vmovdqu RA2, (2 * 16)(%rsi); |
| vmovdqu RA3, (3 * 16)(%rsi); |
| vmovdqu RB0, (4 * 16)(%rsi); |
| jb .Lblk8_store_output_done; |
| vmovdqu RB1, (5 * 16)(%rsi); |
| je .Lblk8_store_output_done; |
| vmovdqu RB2, (6 * 16)(%rsi); |
| cmpq $7, %rcx; |
| je .Lblk8_store_output_done; |
| vmovdqu RB3, (7 * 16)(%rsi); |
| |
| .Lblk8_store_output_done: |
| vzeroall; |
| FRAME_END |
| ret; |
| SYM_FUNC_END(sm4_aesni_avx_crypt8) |
| |
| /* |
| * void sm4_aesni_avx_ctr_enc_blk8(const u32 *rk, u8 *dst, |
| * const u8 *src, u8 *iv) |
| */ |
| .align 8 |
| SYM_FUNC_START(sm4_aesni_avx_ctr_enc_blk8) |
| /* input: |
| * %rdi: round key array, CTX |
| * %rsi: dst (8 blocks) |
| * %rdx: src (8 blocks) |
| * %rcx: iv (big endian, 128bit) |
| */ |
| FRAME_BEGIN |
| |
| /* load IV and byteswap */ |
| vmovdqu (%rcx), RA0; |
| |
| vmovdqa .Lbswap128_mask rRIP, RBSWAP; |
| vpshufb RBSWAP, RA0, RTMP0; /* be => le */ |
| |
| vpcmpeqd RNOT, RNOT, RNOT; |
| vpsrldq $8, RNOT, RNOT; /* low: -1, high: 0 */ |
| |
| #define inc_le128(x, minus_one, tmp) \ |
| vpcmpeqq minus_one, x, tmp; \ |
| vpsubq minus_one, x, x; \ |
| vpslldq $8, tmp, tmp; \ |
| vpsubq tmp, x, x; |
| |
| /* construct IVs */ |
| inc_le128(RTMP0, RNOT, RTMP2); /* +1 */ |
| vpshufb RBSWAP, RTMP0, RA1; |
| inc_le128(RTMP0, RNOT, RTMP2); /* +2 */ |
| vpshufb RBSWAP, RTMP0, RA2; |
| inc_le128(RTMP0, RNOT, RTMP2); /* +3 */ |
| vpshufb RBSWAP, RTMP0, RA3; |
| inc_le128(RTMP0, RNOT, RTMP2); /* +4 */ |
| vpshufb RBSWAP, RTMP0, RB0; |
| inc_le128(RTMP0, RNOT, RTMP2); /* +5 */ |
| vpshufb RBSWAP, RTMP0, RB1; |
| inc_le128(RTMP0, RNOT, RTMP2); /* +6 */ |
| vpshufb RBSWAP, RTMP0, RB2; |
| inc_le128(RTMP0, RNOT, RTMP2); /* +7 */ |
| vpshufb RBSWAP, RTMP0, RB3; |
| inc_le128(RTMP0, RNOT, RTMP2); /* +8 */ |
| vpshufb RBSWAP, RTMP0, RTMP1; |
| |
| /* store new IV */ |
| vmovdqu RTMP1, (%rcx); |
| |
| call __sm4_crypt_blk8; |
| |
| vpxor (0 * 16)(%rdx), RA0, RA0; |
| vpxor (1 * 16)(%rdx), RA1, RA1; |
| vpxor (2 * 16)(%rdx), RA2, RA2; |
| vpxor (3 * 16)(%rdx), RA3, RA3; |
| vpxor (4 * 16)(%rdx), RB0, RB0; |
| vpxor (5 * 16)(%rdx), RB1, RB1; |
| vpxor (6 * 16)(%rdx), RB2, RB2; |
| vpxor (7 * 16)(%rdx), RB3, RB3; |
| |
| vmovdqu RA0, (0 * 16)(%rsi); |
| vmovdqu RA1, (1 * 16)(%rsi); |
| vmovdqu RA2, (2 * 16)(%rsi); |
| vmovdqu RA3, (3 * 16)(%rsi); |
| vmovdqu RB0, (4 * 16)(%rsi); |
| vmovdqu RB1, (5 * 16)(%rsi); |
| vmovdqu RB2, (6 * 16)(%rsi); |
| vmovdqu RB3, (7 * 16)(%rsi); |
| |
| vzeroall; |
| FRAME_END |
| ret; |
| SYM_FUNC_END(sm4_aesni_avx_ctr_enc_blk8) |
| |
| /* |
| * void sm4_aesni_avx_cbc_dec_blk8(const u32 *rk, u8 *dst, |
| * const u8 *src, u8 *iv) |
| */ |
| .align 8 |
| SYM_FUNC_START(sm4_aesni_avx_cbc_dec_blk8) |
| /* input: |
| * %rdi: round key array, CTX |
| * %rsi: dst (8 blocks) |
| * %rdx: src (8 blocks) |
| * %rcx: iv |
| */ |
| FRAME_BEGIN |
| |
| vmovdqu (0 * 16)(%rdx), RA0; |
| vmovdqu (1 * 16)(%rdx), RA1; |
| vmovdqu (2 * 16)(%rdx), RA2; |
| vmovdqu (3 * 16)(%rdx), RA3; |
| vmovdqu (4 * 16)(%rdx), RB0; |
| vmovdqu (5 * 16)(%rdx), RB1; |
| vmovdqu (6 * 16)(%rdx), RB2; |
| vmovdqu (7 * 16)(%rdx), RB3; |
| |
| call __sm4_crypt_blk8; |
| |
| vmovdqu (7 * 16)(%rdx), RNOT; |
| vpxor (%rcx), RA0, RA0; |
| vpxor (0 * 16)(%rdx), RA1, RA1; |
| vpxor (1 * 16)(%rdx), RA2, RA2; |
| vpxor (2 * 16)(%rdx), RA3, RA3; |
| vpxor (3 * 16)(%rdx), RB0, RB0; |
| vpxor (4 * 16)(%rdx), RB1, RB1; |
| vpxor (5 * 16)(%rdx), RB2, RB2; |
| vpxor (6 * 16)(%rdx), RB3, RB3; |
| vmovdqu RNOT, (%rcx); /* store new IV */ |
| |
| vmovdqu RA0, (0 * 16)(%rsi); |
| vmovdqu RA1, (1 * 16)(%rsi); |
| vmovdqu RA2, (2 * 16)(%rsi); |
| vmovdqu RA3, (3 * 16)(%rsi); |
| vmovdqu RB0, (4 * 16)(%rsi); |
| vmovdqu RB1, (5 * 16)(%rsi); |
| vmovdqu RB2, (6 * 16)(%rsi); |
| vmovdqu RB3, (7 * 16)(%rsi); |
| |
| vzeroall; |
| FRAME_END |
| ret; |
| SYM_FUNC_END(sm4_aesni_avx_cbc_dec_blk8) |
| |
| /* |
| * void sm4_aesni_avx_cfb_dec_blk8(const u32 *rk, u8 *dst, |
| * const u8 *src, u8 *iv) |
| */ |
| .align 8 |
| SYM_FUNC_START(sm4_aesni_avx_cfb_dec_blk8) |
| /* input: |
| * %rdi: round key array, CTX |
| * %rsi: dst (8 blocks) |
| * %rdx: src (8 blocks) |
| * %rcx: iv |
| */ |
| FRAME_BEGIN |
| |
| /* Load input */ |
| vmovdqu (%rcx), RA0; |
| vmovdqu 0 * 16(%rdx), RA1; |
| vmovdqu 1 * 16(%rdx), RA2; |
| vmovdqu 2 * 16(%rdx), RA3; |
| vmovdqu 3 * 16(%rdx), RB0; |
| vmovdqu 4 * 16(%rdx), RB1; |
| vmovdqu 5 * 16(%rdx), RB2; |
| vmovdqu 6 * 16(%rdx), RB3; |
| |
| /* Update IV */ |
| vmovdqu 7 * 16(%rdx), RNOT; |
| vmovdqu RNOT, (%rcx); |
| |
| call __sm4_crypt_blk8; |
| |
| vpxor (0 * 16)(%rdx), RA0, RA0; |
| vpxor (1 * 16)(%rdx), RA1, RA1; |
| vpxor (2 * 16)(%rdx), RA2, RA2; |
| vpxor (3 * 16)(%rdx), RA3, RA3; |
| vpxor (4 * 16)(%rdx), RB0, RB0; |
| vpxor (5 * 16)(%rdx), RB1, RB1; |
| vpxor (6 * 16)(%rdx), RB2, RB2; |
| vpxor (7 * 16)(%rdx), RB3, RB3; |
| |
| vmovdqu RA0, (0 * 16)(%rsi); |
| vmovdqu RA1, (1 * 16)(%rsi); |
| vmovdqu RA2, (2 * 16)(%rsi); |
| vmovdqu RA3, (3 * 16)(%rsi); |
| vmovdqu RB0, (4 * 16)(%rsi); |
| vmovdqu RB1, (5 * 16)(%rsi); |
| vmovdqu RB2, (6 * 16)(%rsi); |
| vmovdqu RB3, (7 * 16)(%rsi); |
| |
| vzeroall; |
| FRAME_END |
| ret; |
| SYM_FUNC_END(sm4_aesni_avx_cfb_dec_blk8) |
