^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Glue code for SHA-256 implementation for SPE instructions (PPC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Based on generic implementation. The assembler module takes care
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * about the SPE registers so it can run from interrupt context.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (c) 2015 Markus Stockhausen <stockhausen@collogia.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <crypto/internal/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <crypto/sha.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/byteorder.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <asm/switch_to.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/hardirq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * MAX_BYTES defines the number of bytes that are allowed to be processed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * between preempt_disable() and preempt_enable(). SHA256 takes ~2,000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * operations per 64 bytes. e500 cores can issue two arithmetic instructions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * per clock cycle using one 32/64 bit unit (SU1) and one 32 bit unit (SU2).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * Thus 1KB of input data will need an estimated maximum of 18,000 cycles.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * Headroom for cache misses included. Even with the low end model clocked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * at 667 MHz this equals to a critical time window of less than 27us.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define MAX_BYTES 1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) extern void ppc_spe_sha256_transform(u32 *state, const u8 *src, u32 blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static void spe_begin(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /* We just start SPE operations and will save SPE registers later. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) preempt_disable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) enable_kernel_spe();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static void spe_end(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) disable_kernel_spe();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) /* reenable preemption */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) preempt_enable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static inline void ppc_sha256_clear_context(struct sha256_state *sctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) int count = sizeof(struct sha256_state) >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) u32 *ptr = (u32 *)sctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /* make sure we can clear the fast way */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) BUILD_BUG_ON(sizeof(struct sha256_state) % 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) do { *ptr++ = 0; } while (--count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static int ppc_spe_sha256_init(struct shash_desc *desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) sctx->state[0] = SHA256_H0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) sctx->state[1] = SHA256_H1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) sctx->state[2] = SHA256_H2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) sctx->state[3] = SHA256_H3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) sctx->state[4] = SHA256_H4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) sctx->state[5] = SHA256_H5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) sctx->state[6] = SHA256_H6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) sctx->state[7] = SHA256_H7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) sctx->count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) static int ppc_spe_sha224_init(struct shash_desc *desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) sctx->state[0] = SHA224_H0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) sctx->state[1] = SHA224_H1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) sctx->state[2] = SHA224_H2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) sctx->state[3] = SHA224_H3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) sctx->state[4] = SHA224_H4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) sctx->state[5] = SHA224_H5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) sctx->state[6] = SHA224_H6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) sctx->state[7] = SHA224_H7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) sctx->count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static int ppc_spe_sha256_update(struct shash_desc *desc, const u8 *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) unsigned int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) const unsigned int offset = sctx->count & 0x3f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) const unsigned int avail = 64 - offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) unsigned int bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) const u8 *src = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) if (avail > len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) sctx->count += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) memcpy((char *)sctx->buf + offset, src, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) sctx->count += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (offset) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) memcpy((char *)sctx->buf + offset, src, avail);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) spe_begin();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) ppc_spe_sha256_transform(sctx->state, (const u8 *)sctx->buf, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) spe_end();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) len -= avail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) src += avail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) while (len > 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /* cut input data into smaller blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) bytes = (len > MAX_BYTES) ? MAX_BYTES : len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) bytes = bytes & ~0x3f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) spe_begin();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) ppc_spe_sha256_transform(sctx->state, src, bytes >> 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) spe_end();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) src += bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) len -= bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) memcpy((char *)sctx->buf, src, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static int ppc_spe_sha256_final(struct shash_desc *desc, u8 *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) const unsigned int offset = sctx->count & 0x3f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) char *p = (char *)sctx->buf + offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) int padlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) __be64 *pbits = (__be64 *)(((char *)&sctx->buf) + 56);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) __be32 *dst = (__be32 *)out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) padlen = 55 - offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) *p++ = 0x80;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) spe_begin();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (padlen < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) memset(p, 0x00, padlen + sizeof (u64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) ppc_spe_sha256_transform(sctx->state, sctx->buf, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) p = (char *)sctx->buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) padlen = 56;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) memset(p, 0, padlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) *pbits = cpu_to_be64(sctx->count << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) ppc_spe_sha256_transform(sctx->state, sctx->buf, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) spe_end();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) dst[0] = cpu_to_be32(sctx->state[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) dst[1] = cpu_to_be32(sctx->state[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) dst[2] = cpu_to_be32(sctx->state[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) dst[3] = cpu_to_be32(sctx->state[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) dst[4] = cpu_to_be32(sctx->state[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) dst[5] = cpu_to_be32(sctx->state[5]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) dst[6] = cpu_to_be32(sctx->state[6]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) dst[7] = cpu_to_be32(sctx->state[7]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) ppc_sha256_clear_context(sctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static int ppc_spe_sha224_final(struct shash_desc *desc, u8 *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) u32 D[SHA256_DIGEST_SIZE >> 2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) __be32 *dst = (__be32 *)out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) ppc_spe_sha256_final(desc, (u8 *)D);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) /* avoid bytewise memcpy */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) dst[0] = D[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) dst[1] = D[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) dst[2] = D[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) dst[3] = D[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) dst[4] = D[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) dst[5] = D[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) dst[6] = D[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) /* clear sensitive data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) memzero_explicit(D, SHA256_DIGEST_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static int ppc_spe_sha256_export(struct shash_desc *desc, void *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) memcpy(out, sctx, sizeof(*sctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static int ppc_spe_sha256_import(struct shash_desc *desc, const void *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) memcpy(sctx, in, sizeof(*sctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) static struct shash_alg algs[2] = { {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) .digestsize = SHA256_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) .init = ppc_spe_sha256_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) .update = ppc_spe_sha256_update,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) .final = ppc_spe_sha256_final,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .export = ppc_spe_sha256_export,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) .import = ppc_spe_sha256_import,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) .descsize = sizeof(struct sha256_state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) .statesize = sizeof(struct sha256_state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) .base = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) .cra_name = "sha256",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) .cra_driver_name= "sha256-ppc-spe",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) .cra_priority = 300,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) .cra_blocksize = SHA256_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) .cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) .digestsize = SHA224_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) .init = ppc_spe_sha224_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) .update = ppc_spe_sha256_update,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) .final = ppc_spe_sha224_final,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) .export = ppc_spe_sha256_export,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) .import = ppc_spe_sha256_import,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) .descsize = sizeof(struct sha256_state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) .statesize = sizeof(struct sha256_state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) .base = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) .cra_name = "sha224",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) .cra_driver_name= "sha224-ppc-spe",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) .cra_priority = 300,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) .cra_blocksize = SHA224_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) .cra_module = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) } };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) static int __init ppc_spe_sha256_mod_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return crypto_register_shashes(algs, ARRAY_SIZE(algs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) static void __exit ppc_spe_sha256_mod_fini(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) module_init(ppc_spe_sha256_mod_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) module_exit(ppc_spe_sha256_mod_fini);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm, SPE optimized");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) MODULE_ALIAS_CRYPTO("sha224");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) MODULE_ALIAS_CRYPTO("sha224-ppc-spe");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) MODULE_ALIAS_CRYPTO("sha256");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) MODULE_ALIAS_CRYPTO("sha256-ppc-spe");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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