/* sha256-ppc.c - PowerPC vcrypto implementation of SHA-256 transform * Copyright (C) 2019,2023 Jussi Kivilinna * * This file is part of Libgcrypt. * * Libgcrypt is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * Libgcrypt 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, see . */ #include #if defined(ENABLE_PPC_CRYPTO_SUPPORT) && \ defined(HAVE_COMPATIBLE_CC_PPC_ALTIVEC) && \ defined(HAVE_GCC_INLINE_ASM_PPC_ALTIVEC) && \ defined(USE_SHA256) && \ __GNUC__ >= 4 #include #include "bufhelp.h" typedef vector unsigned char vector16x_u8; typedef vector unsigned int vector4x_u32; typedef vector unsigned long long vector2x_u64; #define ALWAYS_INLINE inline __attribute__((always_inline)) #define NO_INLINE __attribute__((noinline)) #define NO_INSTRUMENT_FUNCTION __attribute__((no_instrument_function)) #define ASM_FUNC_ATTR NO_INSTRUMENT_FUNCTION #define ASM_FUNC_ATTR_INLINE ASM_FUNC_ATTR ALWAYS_INLINE #define ASM_FUNC_ATTR_NOINLINE ASM_FUNC_ATTR NO_INLINE #ifdef HAVE_GCC_ATTRIBUTE_OPTIMIZE # define FUNC_ATTR_OPT_O2 __attribute__((optimize("-O2"))) #else # define FUNC_ATTR_OPT_O2 #endif #if defined(__clang__) && defined(HAVE_CLANG_ATTRIBUTE_PPC_TARGET) # define FUNC_ATTR_TARGET_P8 __attribute__((target("arch=pwr8"))) # define FUNC_ATTR_TARGET_P9 __attribute__((target("arch=pwr9"))) #elif defined(HAVE_GCC_ATTRIBUTE_PPC_TARGET) # define FUNC_ATTR_TARGET_P8 __attribute__((target("cpu=power8"))) # define FUNC_ATTR_TARGET_P9 __attribute__((target("cpu=power9"))) #else # define FUNC_ATTR_TARGET_P8 # define FUNC_ATTR_TARGET_P9 #endif static const vector4x_u32 K[64 / 4] = { #define TBL(v) v { TBL(0x428a2f98), TBL(0x71374491), TBL(0xb5c0fbcf), TBL(0xe9b5dba5) }, { TBL(0x3956c25b), TBL(0x59f111f1), TBL(0x923f82a4), TBL(0xab1c5ed5) }, { TBL(0xd807aa98), TBL(0x12835b01), TBL(0x243185be), TBL(0x550c7dc3) }, { TBL(0x72be5d74), TBL(0x80deb1fe), TBL(0x9bdc06a7), TBL(0xc19bf174) }, { TBL(0xe49b69c1), TBL(0xefbe4786), TBL(0x0fc19dc6), TBL(0x240ca1cc) }, { TBL(0x2de92c6f), TBL(0x4a7484aa), TBL(0x5cb0a9dc), TBL(0x76f988da) }, { TBL(0x983e5152), TBL(0xa831c66d), TBL(0xb00327c8), TBL(0xbf597fc7) }, { TBL(0xc6e00bf3), TBL(0xd5a79147), TBL(0x06ca6351), TBL(0x14292967) }, { TBL(0x27b70a85), TBL(0x2e1b2138), TBL(0x4d2c6dfc), TBL(0x53380d13) }, { TBL(0x650a7354), TBL(0x766a0abb), TBL(0x81c2c92e), TBL(0x92722c85) }, { TBL(0xa2bfe8a1), TBL(0xa81a664b), TBL(0xc24b8b70), TBL(0xc76c51a3) }, { TBL(0xd192e819), TBL(0xd6990624), TBL(0xf40e3585), TBL(0x106aa070) }, { TBL(0x19a4c116), TBL(0x1e376c08), TBL(0x2748774c), TBL(0x34b0bcb5) }, { TBL(0x391c0cb3), TBL(0x4ed8aa4a), TBL(0x5b9cca4f), TBL(0x682e6ff3) }, { TBL(0x748f82ee), TBL(0x78a5636f), TBL(0x84c87814), TBL(0x8cc70208) }, { TBL(0x90befffa), TBL(0xa4506ceb), TBL(0xbef9a3f7), TBL(0xc67178f2) } #undef TBL }; static ASM_FUNC_ATTR_INLINE vector4x_u32 vec_rol_elems(vector4x_u32 v, unsigned int idx) { #ifndef WORDS_BIGENDIAN return vec_sld (v, v, (16 - (4 * idx)) & 15); #else return vec_sld (v, v, (4 * idx) & 15); #endif } static ASM_FUNC_ATTR_INLINE vector4x_u32 vec_merge_idx0_elems(vector4x_u32 v0, vector4x_u32 v1, vector4x_u32 v2, vector4x_u32 v3) { return (vector4x_u32)vec_mergeh ((vector2x_u64) vec_mergeh(v0, v1), (vector2x_u64) vec_mergeh(v2, v3)); } static ASM_FUNC_ATTR_INLINE vector4x_u32 vec_vshasigma_u32(vector4x_u32 v, unsigned int a, unsigned int b) { asm ("vshasigmaw %0,%1,%2,%3" : "=v" (v) : "v" (v), "g" (a), "g" (b) : "memory"); return v; } static ASM_FUNC_ATTR_INLINE vector4x_u32 vec_add_u32(vector4x_u32 v, vector4x_u32 w) { __asm__ ("vadduwm %0,%1,%2" : "=v" (v) : "v" (v), "v" (w) : "memory"); return v; } static ASM_FUNC_ATTR_INLINE vector4x_u32 vec_u32_load_be(unsigned long offset, const void *ptr) { vector4x_u32 vecu32; #if __GNUC__ >= 4 if (__builtin_constant_p (offset) && offset == 0) __asm__ volatile ("lxvw4x %x0,0,%1\n\t" : "=wa" (vecu32) : "r" ((uintptr_t)ptr) : "memory"); else #endif __asm__ volatile ("lxvw4x %x0,%1,%2\n\t" : "=wa" (vecu32) : "r" (offset), "r" ((uintptr_t)ptr) : "memory", "r0"); #ifndef WORDS_BIGENDIAN return (vector4x_u32)vec_reve((vector16x_u8)vecu32); #else return vecu32; #endif } /* SHA2 round in vector registers */ #define R(a,b,c,d,e,f,g,h,ki,w) do \ { \ t1 = vec_add_u32((h), (w)); \ t2 = Cho((e),(f),(g)); \ t1 = vec_add_u32(t1, GETK(ki)); \ t1 = vec_add_u32(t1, t2); \ t1 = Sum1add(t1, e); \ t2 = Maj((a),(b),(c)); \ t2 = Sum0add(t2, a); \ h = vec_add_u32(t1, t2); \ d += t1; \ } while (0) #define GETK(kidx) \ ({ \ vector4x_u32 rk; \ if (((kidx) % 4) == 0) \ { \ rk = ktmp = *(kptr++); \ if ((kidx) < 63) \ asm volatile("" : "+r" (kptr) :: "memory"); \ } \ else if (((kidx) % 4) == 1) \ { \ rk = vec_mergeo(ktmp, ktmp); \ } \ else \ { \ rk = vec_rol_elems(ktmp, ((kidx) % 4)); \ } \ rk; \ }) #define Cho(b, c, d) (vec_sel(d, c, b)) #define Maj(c, d, b) (vec_sel(c, b, c ^ d)) #define Sum0(x) (vec_vshasigma_u32(x, 1, 0)) #define Sum1(x) (vec_vshasigma_u32(x, 1, 15)) #define S0(x) (vec_vshasigma_u32(x, 0, 0)) #define S1(x) (vec_vshasigma_u32(x, 0, 15)) #define Xadd(X, d, x) vec_add_u32(d, X(x)) #define Sum0add(d, x) Xadd(Sum0, d, x) #define Sum1add(d, x) Xadd(Sum1, d, x) #define S0add(d, x) Xadd(S0, d, x) #define S1add(d, x) Xadd(S1, d, x) #define I(i) \ ({ \ if (((i) % 4) == 0) \ { \ w[i] = vec_u32_load_be(0, data); \ data += 4 * 4; \ if ((i) / 4 < 3) \ asm volatile("" : "+r"(data) :: "memory"); \ } \ else if (((i) % 4) == 1) \ { \ w[i] = vec_mergeo(w[(i) - 1], w[(i) - 1]); \ } \ else \ { \ w[i] = vec_rol_elems(w[(i) - (i) % 4], (i)); \ } \ }) #define WN(i) ({ w[(i)&0x0f] += w[((i)-7) &0x0f]; \ w[(i)&0x0f] = S0add(w[(i)&0x0f], w[((i)-15)&0x0f]); \ w[(i)&0x0f] = S1add(w[(i)&0x0f], w[((i)-2) &0x0f]); }) #define W(i) ({ vector4x_u32 r = w[(i)&0x0f]; WN(i); r; }) #define L(i) w[(i)&0x0f] #define I2(i) \ ({ \ if ((i) % 4 == 0) \ { \ vector4x_u32 iw = vec_u32_load_be(0, data); \ vector4x_u32 iw2 = vec_u32_load_be(64, data); \ if ((i) / 4 < 3) \ { \ data += 4 * 4; \ asm volatile("" : "+r"(data) :: "memory"); \ } \ else \ { \ data += 4 * 4 + 64; \ asm volatile("" : "+r"(data) :: "memory"); \ } \ w[(i) + 0] = vec_mergeh(iw, iw2); \ w[(i) + 1] = vec_rol_elems(w[(i) + 0], 2); \ w[(i) + 2] = vec_mergel(iw, iw2); \ w[(i) + 3] = vec_rol_elems(w[(i) + 2], 2); \ } \ }) #define W2(i) \ ({ \ vector4x_u32 wt1 = w[(i)&0x0f]; \ WN(i); \ w2[(i) / 2] = (((i) % 2) == 0) ? wt1 : vec_mergeo(w2[(i) / 2], wt1); \ wt1; \ }) #define L2(i) \ ({ \ vector4x_u32 lt1 = w[(i)&0x0f]; \ w2[(i) / 2] = (((i) % 2) == 0) ? lt1 : vec_mergeo(w2[(i) / 2], lt1); \ lt1; \ }) #define WL(i) \ ({ \ vector4x_u32 wlt1 = w2[(i) / 2]; \ if (((i) % 2) == 0 && (i) < 63) \ w2[(i) / 2] = vec_mergeo(wlt1, wlt1); \ wlt1; \ }) static ASM_FUNC_ATTR_INLINE FUNC_ATTR_OPT_O2 unsigned int sha256_transform_ppc(u32 state[8], const unsigned char *data, size_t nblks) { vector4x_u32 h0, h1, h2, h3, h4, h5, h6, h7; vector4x_u32 h0_h3, h4_h7; vector4x_u32 a, b, c, d, e, f, g, h, t1, t2; vector4x_u32 w[16]; vector4x_u32 w2[64 / 2]; h0_h3 = vec_vsx_ld (4 * 0, state); h4_h7 = vec_vsx_ld (4 * 4, state); h0 = h0_h3; h1 = vec_mergeo (h0_h3, h0_h3); h2 = vec_rol_elems (h0_h3, 2); h3 = vec_rol_elems (h0_h3, 3); h4 = h4_h7; h5 = vec_mergeo (h4_h7, h4_h7); h6 = vec_rol_elems (h4_h7, 2); h7 = vec_rol_elems (h4_h7, 3); while (nblks >= 2) { const vector4x_u32 *kptr = K; vector4x_u32 ktmp; a = h0; b = h1; c = h2; d = h3; e = h4; f = h5; g = h6; h = h7; I2(0); I2(1); I2(2); I2(3); I2(4); I2(5); I2(6); I2(7); I2(8); I2(9); I2(10); I2(11); I2(12); I2(13); I2(14); I2(15); R(a, b, c, d, e, f, g, h, 0, W2(0)); R(h, a, b, c, d, e, f, g, 1, W2(1)); R(g, h, a, b, c, d, e, f, 2, W2(2)); R(f, g, h, a, b, c, d, e, 3, W2(3)); R(e, f, g, h, a, b, c, d, 4, W2(4)); R(d, e, f, g, h, a, b, c, 5, W2(5)); R(c, d, e, f, g, h, a, b, 6, W2(6)); R(b, c, d, e, f, g, h, a, 7, W2(7)); R(a, b, c, d, e, f, g, h, 8, W2(8)); R(h, a, b, c, d, e, f, g, 9, W2(9)); R(g, h, a, b, c, d, e, f, 10, W2(10)); R(f, g, h, a, b, c, d, e, 11, W2(11)); R(e, f, g, h, a, b, c, d, 12, W2(12)); R(d, e, f, g, h, a, b, c, 13, W2(13)); R(c, d, e, f, g, h, a, b, 14, W2(14)); R(b, c, d, e, f, g, h, a, 15, W2(15)); R(a, b, c, d, e, f, g, h, 16, W2(16)); R(h, a, b, c, d, e, f, g, 17, W2(17)); R(g, h, a, b, c, d, e, f, 18, W2(18)); R(f, g, h, a, b, c, d, e, 19, W2(19)); R(e, f, g, h, a, b, c, d, 20, W2(20)); R(d, e, f, g, h, a, b, c, 21, W2(21)); R(c, d, e, f, g, h, a, b, 22, W2(22)); R(b, c, d, e, f, g, h, a, 23, W2(23)); R(a, b, c, d, e, f, g, h, 24, W2(24)); R(h, a, b, c, d, e, f, g, 25, W2(25)); R(g, h, a, b, c, d, e, f, 26, W2(26)); R(f, g, h, a, b, c, d, e, 27, W2(27)); R(e, f, g, h, a, b, c, d, 28, W2(28)); R(d, e, f, g, h, a, b, c, 29, W2(29)); R(c, d, e, f, g, h, a, b, 30, W2(30)); R(b, c, d, e, f, g, h, a, 31, W2(31)); R(a, b, c, d, e, f, g, h, 32, W2(32)); R(h, a, b, c, d, e, f, g, 33, W2(33)); R(g, h, a, b, c, d, e, f, 34, W2(34)); R(f, g, h, a, b, c, d, e, 35, W2(35)); R(e, f, g, h, a, b, c, d, 36, W2(36)); R(d, e, f, g, h, a, b, c, 37, W2(37)); R(c, d, e, f, g, h, a, b, 38, W2(38)); R(b, c, d, e, f, g, h, a, 39, W2(39)); R(a, b, c, d, e, f, g, h, 40, W2(40)); R(h, a, b, c, d, e, f, g, 41, W2(41)); R(g, h, a, b, c, d, e, f, 42, W2(42)); R(f, g, h, a, b, c, d, e, 43, W2(43)); R(e, f, g, h, a, b, c, d, 44, W2(44)); R(d, e, f, g, h, a, b, c, 45, W2(45)); R(c, d, e, f, g, h, a, b, 46, W2(46)); R(b, c, d, e, f, g, h, a, 47, W2(47)); R(a, b, c, d, e, f, g, h, 48, L2(48)); R(h, a, b, c, d, e, f, g, 49, L2(49)); R(g, h, a, b, c, d, e, f, 50, L2(50)); R(f, g, h, a, b, c, d, e, 51, L2(51)); R(e, f, g, h, a, b, c, d, 52, L2(52)); R(d, e, f, g, h, a, b, c, 53, L2(53)); R(c, d, e, f, g, h, a, b, 54, L2(54)); R(b, c, d, e, f, g, h, a, 55, L2(55)); R(a, b, c, d, e, f, g, h, 56, L2(56)); R(h, a, b, c, d, e, f, g, 57, L2(57)); R(g, h, a, b, c, d, e, f, 58, L2(58)); R(f, g, h, a, b, c, d, e, 59, L2(59)); R(e, f, g, h, a, b, c, d, 60, L2(60)); R(d, e, f, g, h, a, b, c, 61, L2(61)); R(c, d, e, f, g, h, a, b, 62, L2(62)); R(b, c, d, e, f, g, h, a, 63, L2(63)); h0 += a; h1 += b; h2 += c; h3 += d; h4 += e; h5 += f; h6 += g; h7 += h; kptr = K; a = h0; b = h1; c = h2; d = h3; e = h4; f = h5; g = h6; h = h7; R(a, b, c, d, e, f, g, h, 0, WL(0)); R(h, a, b, c, d, e, f, g, 1, WL(1)); R(g, h, a, b, c, d, e, f, 2, WL(2)); R(f, g, h, a, b, c, d, e, 3, WL(3)); R(e, f, g, h, a, b, c, d, 4, WL(4)); R(d, e, f, g, h, a, b, c, 5, WL(5)); R(c, d, e, f, g, h, a, b, 6, WL(6)); R(b, c, d, e, f, g, h, a, 7, WL(7)); R(a, b, c, d, e, f, g, h, 8, WL(8)); R(h, a, b, c, d, e, f, g, 9, WL(9)); R(g, h, a, b, c, d, e, f, 10, WL(10)); R(f, g, h, a, b, c, d, e, 11, WL(11)); R(e, f, g, h, a, b, c, d, 12, WL(12)); R(d, e, f, g, h, a, b, c, 13, WL(13)); R(c, d, e, f, g, h, a, b, 14, WL(14)); R(b, c, d, e, f, g, h, a, 15, WL(15)); R(a, b, c, d, e, f, g, h, 16, WL(16)); R(h, a, b, c, d, e, f, g, 17, WL(17)); R(g, h, a, b, c, d, e, f, 18, WL(18)); R(f, g, h, a, b, c, d, e, 19, WL(19)); R(e, f, g, h, a, b, c, d, 20, WL(20)); R(d, e, f, g, h, a, b, c, 21, WL(21)); R(c, d, e, f, g, h, a, b, 22, WL(22)); R(b, c, d, e, f, g, h, a, 23, WL(23)); R(a, b, c, d, e, f, g, h, 24, WL(24)); R(h, a, b, c, d, e, f, g, 25, WL(25)); R(g, h, a, b, c, d, e, f, 26, WL(26)); R(f, g, h, a, b, c, d, e, 27, WL(27)); R(e, f, g, h, a, b, c, d, 28, WL(28)); R(d, e, f, g, h, a, b, c, 29, WL(29)); R(c, d, e, f, g, h, a, b, 30, WL(30)); R(b, c, d, e, f, g, h, a, 31, WL(31)); R(a, b, c, d, e, f, g, h, 32, WL(32)); R(h, a, b, c, d, e, f, g, 33, WL(33)); R(g, h, a, b, c, d, e, f, 34, WL(34)); R(f, g, h, a, b, c, d, e, 35, WL(35)); R(e, f, g, h, a, b, c, d, 36, WL(36)); R(d, e, f, g, h, a, b, c, 37, WL(37)); R(c, d, e, f, g, h, a, b, 38, WL(38)); R(b, c, d, e, f, g, h, a, 39, WL(39)); R(a, b, c, d, e, f, g, h, 40, WL(40)); R(h, a, b, c, d, e, f, g, 41, WL(41)); R(g, h, a, b, c, d, e, f, 42, WL(42)); R(f, g, h, a, b, c, d, e, 43, WL(43)); R(e, f, g, h, a, b, c, d, 44, WL(44)); R(d, e, f, g, h, a, b, c, 45, WL(45)); R(c, d, e, f, g, h, a, b, 46, WL(46)); R(b, c, d, e, f, g, h, a, 47, WL(47)); R(a, b, c, d, e, f, g, h, 48, WL(48)); R(h, a, b, c, d, e, f, g, 49, WL(49)); R(g, h, a, b, c, d, e, f, 50, WL(50)); R(f, g, h, a, b, c, d, e, 51, WL(51)); R(e, f, g, h, a, b, c, d, 52, WL(52)); R(d, e, f, g, h, a, b, c, 53, WL(53)); R(c, d, e, f, g, h, a, b, 54, WL(54)); R(b, c, d, e, f, g, h, a, 55, WL(55)); R(a, b, c, d, e, f, g, h, 56, WL(56)); R(h, a, b, c, d, e, f, g, 57, WL(57)); R(g, h, a, b, c, d, e, f, 58, WL(58)); R(f, g, h, a, b, c, d, e, 59, WL(59)); R(e, f, g, h, a, b, c, d, 60, WL(60)); R(d, e, f, g, h, a, b, c, 61, WL(61)); R(c, d, e, f, g, h, a, b, 62, WL(62)); R(b, c, d, e, f, g, h, a, 63, WL(63)); h0 += a; h1 += b; h2 += c; h3 += d; h4 += e; h5 += f; h6 += g; h7 += h; nblks -= 2; } if (nblks) { const vector4x_u32 *kptr = K; vector4x_u32 ktmp; a = h0; b = h1; c = h2; d = h3; e = h4; f = h5; g = h6; h = h7; I(0); I(1); I(2); I(3); I(4); I(5); I(6); I(7); I(8); I(9); I(10); I(11); I(12); I(13); I(14); I(15); R(a, b, c, d, e, f, g, h, 0, W(0)); R(h, a, b, c, d, e, f, g, 1, W(1)); R(g, h, a, b, c, d, e, f, 2, W(2)); R(f, g, h, a, b, c, d, e, 3, W(3)); R(e, f, g, h, a, b, c, d, 4, W(4)); R(d, e, f, g, h, a, b, c, 5, W(5)); R(c, d, e, f, g, h, a, b, 6, W(6)); R(b, c, d, e, f, g, h, a, 7, W(7)); R(a, b, c, d, e, f, g, h, 8, W(8)); R(h, a, b, c, d, e, f, g, 9, W(9)); R(g, h, a, b, c, d, e, f, 10, W(10)); R(f, g, h, a, b, c, d, e, 11, W(11)); R(e, f, g, h, a, b, c, d, 12, W(12)); R(d, e, f, g, h, a, b, c, 13, W(13)); R(c, d, e, f, g, h, a, b, 14, W(14)); R(b, c, d, e, f, g, h, a, 15, W(15)); R(a, b, c, d, e, f, g, h, 16, W(16)); R(h, a, b, c, d, e, f, g, 17, W(17)); R(g, h, a, b, c, d, e, f, 18, W(18)); R(f, g, h, a, b, c, d, e, 19, W(19)); R(e, f, g, h, a, b, c, d, 20, W(20)); R(d, e, f, g, h, a, b, c, 21, W(21)); R(c, d, e, f, g, h, a, b, 22, W(22)); R(b, c, d, e, f, g, h, a, 23, W(23)); R(a, b, c, d, e, f, g, h, 24, W(24)); R(h, a, b, c, d, e, f, g, 25, W(25)); R(g, h, a, b, c, d, e, f, 26, W(26)); R(f, g, h, a, b, c, d, e, 27, W(27)); R(e, f, g, h, a, b, c, d, 28, W(28)); R(d, e, f, g, h, a, b, c, 29, W(29)); R(c, d, e, f, g, h, a, b, 30, W(30)); R(b, c, d, e, f, g, h, a, 31, W(31)); R(a, b, c, d, e, f, g, h, 32, W(32)); R(h, a, b, c, d, e, f, g, 33, W(33)); R(g, h, a, b, c, d, e, f, 34, W(34)); R(f, g, h, a, b, c, d, e, 35, W(35)); R(e, f, g, h, a, b, c, d, 36, W(36)); R(d, e, f, g, h, a, b, c, 37, W(37)); R(c, d, e, f, g, h, a, b, 38, W(38)); R(b, c, d, e, f, g, h, a, 39, W(39)); R(a, b, c, d, e, f, g, h, 40, W(40)); R(h, a, b, c, d, e, f, g, 41, W(41)); R(g, h, a, b, c, d, e, f, 42, W(42)); R(f, g, h, a, b, c, d, e, 43, W(43)); R(e, f, g, h, a, b, c, d, 44, W(44)); R(d, e, f, g, h, a, b, c, 45, W(45)); R(c, d, e, f, g, h, a, b, 46, W(46)); R(b, c, d, e, f, g, h, a, 47, W(47)); R(a, b, c, d, e, f, g, h, 48, L(48)); R(h, a, b, c, d, e, f, g, 49, L(49)); R(g, h, a, b, c, d, e, f, 50, L(50)); R(f, g, h, a, b, c, d, e, 51, L(51)); R(e, f, g, h, a, b, c, d, 52, L(52)); R(d, e, f, g, h, a, b, c, 53, L(53)); R(c, d, e, f, g, h, a, b, 54, L(54)); R(b, c, d, e, f, g, h, a, 55, L(55)); R(a, b, c, d, e, f, g, h, 56, L(56)); R(h, a, b, c, d, e, f, g, 57, L(57)); R(g, h, a, b, c, d, e, f, 58, L(58)); R(f, g, h, a, b, c, d, e, 59, L(59)); R(e, f, g, h, a, b, c, d, 60, L(60)); R(d, e, f, g, h, a, b, c, 61, L(61)); R(c, d, e, f, g, h, a, b, 62, L(62)); R(b, c, d, e, f, g, h, a, 63, L(63)); h0 += a; h1 += b; h2 += c; h3 += d; h4 += e; h5 += f; h6 += g; h7 += h; nblks--; } h0_h3 = vec_merge_idx0_elems (h0, h1, h2, h3); h4_h7 = vec_merge_idx0_elems (h4, h5, h6, h7); vec_vsx_st (h0_h3, 4 * 0, state); vec_vsx_st (h4_h7, 4 * 4, state); return sizeof(w2) + sizeof(w); } unsigned int ASM_FUNC_ATTR FUNC_ATTR_TARGET_P8 FUNC_ATTR_OPT_O2 _gcry_sha256_transform_ppc8(u32 state[8], const unsigned char *data, size_t nblks) { return sha256_transform_ppc(state, data, nblks); } unsigned int ASM_FUNC_ATTR FUNC_ATTR_TARGET_P9 FUNC_ATTR_OPT_O2 _gcry_sha256_transform_ppc9(u32 state[8], const unsigned char *data, size_t nblks) { return sha256_transform_ppc(state, data, nblks); } #endif /* ENABLE_PPC_CRYPTO_SUPPORT */