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Diffstat (limited to 'arch/riscv/crypto/sha256-riscv64-zvknha_or_zvknhb-zvkb.S')
| -rw-r--r-- | arch/riscv/crypto/sha256-riscv64-zvknha_or_zvknhb-zvkb.S | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/arch/riscv/crypto/sha256-riscv64-zvknha_or_zvknhb-zvkb.S b/arch/riscv/crypto/sha256-riscv64-zvknha_or_zvknhb-zvkb.S deleted file mode 100644 index 8ebcc17de4dc..000000000000 --- a/arch/riscv/crypto/sha256-riscv64-zvknha_or_zvknhb-zvkb.S +++ /dev/null @@ -1,225 +0,0 @@ -/* SPDX-License-Identifier: Apache-2.0 OR BSD-2-Clause */ -// -// This file is dual-licensed, meaning that you can use it under your -// choice of either of the following two licenses: -// -// Copyright 2023 The OpenSSL Project Authors. All Rights Reserved. -// -// Licensed under the Apache License 2.0 (the "License"). You can obtain -// a copy in the file LICENSE in the source distribution or at -// https://www.openssl.org/source/license.html -// -// or -// -// Copyright (c) 2023, Christoph Müllner <christoph.muellner@vrull.eu> -// Copyright (c) 2023, Phoebe Chen <phoebe.chen@sifive.com> -// Copyright 2024 Google LLC -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions -// are met: -// 1. Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// 2. 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. -// -// 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. - -// The generated code of this file depends on the following RISC-V extensions: -// - RV64I -// - RISC-V Vector ('V') with VLEN >= 128 -// - RISC-V Vector SHA-2 Secure Hash extension ('Zvknha' or 'Zvknhb') -// - RISC-V Vector Cryptography Bit-manipulation extension ('Zvkb') - -#include <linux/cfi_types.h> - -.text -.option arch, +zvknha, +zvkb - -#define STATEP a0 -#define DATA a1 -#define NUM_BLOCKS a2 - -#define STATEP_C a3 - -#define MASK v0 -#define INDICES v1 -#define W0 v2 -#define W1 v3 -#define W2 v4 -#define W3 v5 -#define VTMP v6 -#define FEBA v7 -#define HGDC v8 -#define K0 v10 -#define K1 v11 -#define K2 v12 -#define K3 v13 -#define K4 v14 -#define K5 v15 -#define K6 v16 -#define K7 v17 -#define K8 v18 -#define K9 v19 -#define K10 v20 -#define K11 v21 -#define K12 v22 -#define K13 v23 -#define K14 v24 -#define K15 v25 -#define PREV_FEBA v26 -#define PREV_HGDC v27 - -// Do 4 rounds of SHA-256. w0 contains the current 4 message schedule words. -// -// If not all the message schedule words have been computed yet, then this also -// computes 4 more message schedule words. w1-w3 contain the next 3 groups of 4 -// message schedule words; this macro computes the group after w3 and writes it -// to w0. This means that the next (w0, w1, w2, w3) is the current (w1, w2, w3, -// w0), so the caller must cycle through the registers accordingly. -.macro sha256_4rounds last, k, w0, w1, w2, w3 - vadd.vv VTMP, \k, \w0 - vsha2cl.vv HGDC, FEBA, VTMP - vsha2ch.vv FEBA, HGDC, VTMP -.if !\last - vmerge.vvm VTMP, \w2, \w1, MASK - vsha2ms.vv \w0, VTMP, \w3 -.endif -.endm - -.macro sha256_16rounds last, k0, k1, k2, k3 - sha256_4rounds \last, \k0, W0, W1, W2, W3 - sha256_4rounds \last, \k1, W1, W2, W3, W0 - sha256_4rounds \last, \k2, W2, W3, W0, W1 - sha256_4rounds \last, \k3, W3, W0, W1, W2 -.endm - -// void sha256_transform_zvknha_or_zvknhb_zvkb(u32 state[8], const u8 *data, -// int num_blocks); -SYM_TYPED_FUNC_START(sha256_transform_zvknha_or_zvknhb_zvkb) - - // Load the round constants into K0-K15. - vsetivli zero, 4, e32, m1, ta, ma - la t0, K256 - vle32.v K0, (t0) - addi t0, t0, 16 - vle32.v K1, (t0) - addi t0, t0, 16 - vle32.v K2, (t0) - addi t0, t0, 16 - vle32.v K3, (t0) - addi t0, t0, 16 - vle32.v K4, (t0) - addi t0, t0, 16 - vle32.v K5, (t0) - addi t0, t0, 16 - vle32.v K6, (t0) - addi t0, t0, 16 - vle32.v K7, (t0) - addi t0, t0, 16 - vle32.v K8, (t0) - addi t0, t0, 16 - vle32.v K9, (t0) - addi t0, t0, 16 - vle32.v K10, (t0) - addi t0, t0, 16 - vle32.v K11, (t0) - addi t0, t0, 16 - vle32.v K12, (t0) - addi t0, t0, 16 - vle32.v K13, (t0) - addi t0, t0, 16 - vle32.v K14, (t0) - addi t0, t0, 16 - vle32.v K15, (t0) - - // Setup mask for the vmerge to replace the first word (idx==0) in - // message scheduling. There are 4 words, so an 8-bit mask suffices. - vsetivli zero, 1, e8, m1, ta, ma - vmv.v.i MASK, 0x01 - - // Load the state. The state is stored as {a,b,c,d,e,f,g,h}, but we - // need {f,e,b,a},{h,g,d,c}. The dst vtype is e32m1 and the index vtype - // is e8mf4. We use index-load with the i8 indices {20, 16, 4, 0}, - // loaded using the 32-bit little endian value 0x00041014. - li t0, 0x00041014 - vsetivli zero, 1, e32, m1, ta, ma - vmv.v.x INDICES, t0 - addi STATEP_C, STATEP, 8 - vsetivli zero, 4, e32, m1, ta, ma - vluxei8.v FEBA, (STATEP), INDICES - vluxei8.v HGDC, (STATEP_C), INDICES - -.Lnext_block: - addi NUM_BLOCKS, NUM_BLOCKS, -1 - - // Save the previous state, as it's needed later. - vmv.v.v PREV_FEBA, FEBA - vmv.v.v PREV_HGDC, HGDC - - // Load the next 512-bit message block and endian-swap each 32-bit word. - vle32.v W0, (DATA) - vrev8.v W0, W0 - addi DATA, DATA, 16 - vle32.v W1, (DATA) - vrev8.v W1, W1 - addi DATA, DATA, 16 - vle32.v W2, (DATA) - vrev8.v W2, W2 - addi DATA, DATA, 16 - vle32.v W3, (DATA) - vrev8.v W3, W3 - addi DATA, DATA, 16 - - // Do the 64 rounds of SHA-256. - sha256_16rounds 0, K0, K1, K2, K3 - sha256_16rounds 0, K4, K5, K6, K7 - sha256_16rounds 0, K8, K9, K10, K11 - sha256_16rounds 1, K12, K13, K14, K15 - - // Add the previous state. - vadd.vv FEBA, FEBA, PREV_FEBA - vadd.vv HGDC, HGDC, PREV_HGDC - - // Repeat if more blocks remain. - bnez NUM_BLOCKS, .Lnext_block - - // Store the new state and return. - vsuxei8.v FEBA, (STATEP), INDICES - vsuxei8.v HGDC, (STATEP_C), INDICES - ret -SYM_FUNC_END(sha256_transform_zvknha_or_zvknhb_zvkb) - -.section ".rodata" -.p2align 2 -.type K256, @object -K256: - .word 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5 - .word 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5 - .word 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3 - .word 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174 - .word 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc - .word 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da - .word 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7 - .word 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967 - .word 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13 - .word 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85 - .word 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3 - .word 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070 - .word 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5 - .word 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3 - .word 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208 - .word 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 -.size K256, . - K256 |