162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * sha2-ce-core.S - SHA-224/256 secure hash using ARMv8 Crypto Extensions 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (C) 2015 Linaro Ltd. 662306a36Sopenharmony_ci * Author: Ard Biesheuvel <ard.biesheuvel@linaro.org> 762306a36Sopenharmony_ci */ 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#include <linux/linkage.h> 1062306a36Sopenharmony_ci#include <asm/assembler.h> 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci .text 1362306a36Sopenharmony_ci .arch armv8-a 1462306a36Sopenharmony_ci .fpu crypto-neon-fp-armv8 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci k0 .req q7 1762306a36Sopenharmony_ci k1 .req q8 1862306a36Sopenharmony_ci rk .req r3 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci ta0 .req q9 2162306a36Sopenharmony_ci ta1 .req q10 2262306a36Sopenharmony_ci tb0 .req q10 2362306a36Sopenharmony_ci tb1 .req q9 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci dga .req q11 2662306a36Sopenharmony_ci dgb .req q12 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci dg0 .req q13 2962306a36Sopenharmony_ci dg1 .req q14 3062306a36Sopenharmony_ci dg2 .req q15 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci .macro add_only, ev, s0 3362306a36Sopenharmony_ci vmov dg2, dg0 3462306a36Sopenharmony_ci .ifnb \s0 3562306a36Sopenharmony_ci vld1.32 {k\ev}, [rk, :128]! 3662306a36Sopenharmony_ci .endif 3762306a36Sopenharmony_ci sha256h.32 dg0, dg1, tb\ev 3862306a36Sopenharmony_ci sha256h2.32 dg1, dg2, tb\ev 3962306a36Sopenharmony_ci .ifnb \s0 4062306a36Sopenharmony_ci vadd.u32 ta\ev, q\s0, k\ev 4162306a36Sopenharmony_ci .endif 4262306a36Sopenharmony_ci .endm 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ci .macro add_update, ev, s0, s1, s2, s3 4562306a36Sopenharmony_ci sha256su0.32 q\s0, q\s1 4662306a36Sopenharmony_ci add_only \ev, \s1 4762306a36Sopenharmony_ci sha256su1.32 q\s0, q\s2, q\s3 4862306a36Sopenharmony_ci .endm 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_ci .align 6 5162306a36Sopenharmony_ci.Lsha256_rcon: 5262306a36Sopenharmony_ci .word 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5 5362306a36Sopenharmony_ci .word 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5 5462306a36Sopenharmony_ci .word 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3 5562306a36Sopenharmony_ci .word 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174 5662306a36Sopenharmony_ci .word 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc 5762306a36Sopenharmony_ci .word 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da 5862306a36Sopenharmony_ci .word 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7 5962306a36Sopenharmony_ci .word 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967 6062306a36Sopenharmony_ci .word 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13 6162306a36Sopenharmony_ci .word 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85 6262306a36Sopenharmony_ci .word 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3 6362306a36Sopenharmony_ci .word 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070 6462306a36Sopenharmony_ci .word 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5 6562306a36Sopenharmony_ci .word 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3 6662306a36Sopenharmony_ci .word 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208 6762306a36Sopenharmony_ci .word 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 6862306a36Sopenharmony_ci 6962306a36Sopenharmony_ci /* 7062306a36Sopenharmony_ci * void sha2_ce_transform(struct sha256_state *sst, u8 const *src, 7162306a36Sopenharmony_ci int blocks); 7262306a36Sopenharmony_ci */ 7362306a36Sopenharmony_ciENTRY(sha2_ce_transform) 7462306a36Sopenharmony_ci /* load state */ 7562306a36Sopenharmony_ci vld1.32 {dga-dgb}, [r0] 7662306a36Sopenharmony_ci 7762306a36Sopenharmony_ci /* load input */ 7862306a36Sopenharmony_ci0: vld1.32 {q0-q1}, [r1]! 7962306a36Sopenharmony_ci vld1.32 {q2-q3}, [r1]! 8062306a36Sopenharmony_ci subs r2, r2, #1 8162306a36Sopenharmony_ci 8262306a36Sopenharmony_ci#ifndef CONFIG_CPU_BIG_ENDIAN 8362306a36Sopenharmony_ci vrev32.8 q0, q0 8462306a36Sopenharmony_ci vrev32.8 q1, q1 8562306a36Sopenharmony_ci vrev32.8 q2, q2 8662306a36Sopenharmony_ci vrev32.8 q3, q3 8762306a36Sopenharmony_ci#endif 8862306a36Sopenharmony_ci 8962306a36Sopenharmony_ci /* load first round constant */ 9062306a36Sopenharmony_ci adr rk, .Lsha256_rcon 9162306a36Sopenharmony_ci vld1.32 {k0}, [rk, :128]! 9262306a36Sopenharmony_ci 9362306a36Sopenharmony_ci vadd.u32 ta0, q0, k0 9462306a36Sopenharmony_ci vmov dg0, dga 9562306a36Sopenharmony_ci vmov dg1, dgb 9662306a36Sopenharmony_ci 9762306a36Sopenharmony_ci add_update 1, 0, 1, 2, 3 9862306a36Sopenharmony_ci add_update 0, 1, 2, 3, 0 9962306a36Sopenharmony_ci add_update 1, 2, 3, 0, 1 10062306a36Sopenharmony_ci add_update 0, 3, 0, 1, 2 10162306a36Sopenharmony_ci add_update 1, 0, 1, 2, 3 10262306a36Sopenharmony_ci add_update 0, 1, 2, 3, 0 10362306a36Sopenharmony_ci add_update 1, 2, 3, 0, 1 10462306a36Sopenharmony_ci add_update 0, 3, 0, 1, 2 10562306a36Sopenharmony_ci add_update 1, 0, 1, 2, 3 10662306a36Sopenharmony_ci add_update 0, 1, 2, 3, 0 10762306a36Sopenharmony_ci add_update 1, 2, 3, 0, 1 10862306a36Sopenharmony_ci add_update 0, 3, 0, 1, 2 10962306a36Sopenharmony_ci 11062306a36Sopenharmony_ci add_only 1, 1 11162306a36Sopenharmony_ci add_only 0, 2 11262306a36Sopenharmony_ci add_only 1, 3 11362306a36Sopenharmony_ci add_only 0 11462306a36Sopenharmony_ci 11562306a36Sopenharmony_ci /* update state */ 11662306a36Sopenharmony_ci vadd.u32 dga, dga, dg0 11762306a36Sopenharmony_ci vadd.u32 dgb, dgb, dg1 11862306a36Sopenharmony_ci bne 0b 11962306a36Sopenharmony_ci 12062306a36Sopenharmony_ci /* store new state */ 12162306a36Sopenharmony_ci vst1.32 {dga-dgb}, [r0] 12262306a36Sopenharmony_ci bx lr 12362306a36Sopenharmony_ciENDPROC(sha2_ce_transform) 124