diff options
Diffstat (limited to 'drivers/staging/skein/skein_block.h')
| -rw-r--r-- | drivers/staging/skein/skein_block.h | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/drivers/staging/skein/skein_block.h b/drivers/staging/skein/skein_block.h index ec1baea25c9e..b3bb3d24273b 100644 --- a/drivers/staging/skein/skein_block.h +++ b/drivers/staging/skein/skein_block.h @@ -14,6 +14,329 @@ #include "skein_base.h" /* get the Skein API definitions */ +#ifndef SKEIN_USE_ASM +#define SKEIN_USE_ASM (0) /* default is all C code (no ASM) */ +#endif + +#ifndef SKEIN_LOOP +#define SKEIN_LOOP 001 /* default: unroll 256 and 512, but not 1024 */ +#endif + +#define BLK_BITS (WCNT * 64) /* some useful definitions for code here */ +#define KW_TWK_BASE (0) +#define KW_KEY_BASE (3) +#define ks (kw + KW_KEY_BASE) +#define ts (kw + KW_TWK_BASE) + +#ifdef SKEIN_DEBUG +#define debug_save_tweak(ctx) \ +{ \ + ctx->h.tweak[0] = ts[0]; \ + ctx->h.tweak[1] = ts[1]; \ +} +#else +#define debug_save_tweak(ctx) +#endif + +#if !(SKEIN_USE_ASM & 256) +#undef RCNT +#define RCNT (SKEIN_256_ROUNDS_TOTAL / 8) +#ifdef SKEIN_LOOP /* configure how much to unroll the loop */ +#define SKEIN_UNROLL_256 (((SKEIN_LOOP) / 100) % 10) +#else +#define SKEIN_UNROLL_256 (0) +#endif + +#if SKEIN_UNROLL_256 +#if (RCNT % SKEIN_UNROLL_256) +#error "Invalid SKEIN_UNROLL_256" /* sanity check on unroll count */ +#endif +#endif +#define ROUND256(p0, p1, p2, p3, ROT, r_num) \ + do { \ + X##p0 += X##p1; \ + X##p1 = rol64(X##p1, ROT##_0); \ + X##p1 ^= X##p0; \ + X##p2 += X##p3; \ + X##p3 = rol64(X##p3, ROT##_1); \ + X##p3 ^= X##p2; \ + } while (0) + +#if SKEIN_UNROLL_256 == 0 +#define R256(p0, p1, p2, p3, ROT, r_num) /* fully unrolled */ \ + ROUND256(p0, p1, p2, p3, ROT, r_num) + +#define I256(R) \ + do { \ + /* inject the key schedule value */ \ + X0 += ks[((R) + 1) % 5]; \ + X1 += ks[((R) + 2) % 5] + ts[((R) + 1) % 3]; \ + X2 += ks[((R) + 3) % 5] + ts[((R) + 2) % 3]; \ + X3 += ks[((R) + 4) % 5] + (R) + 1; \ + } while (0) +#else +/* looping version */ +#define R256(p0, p1, p2, p3, ROT, r_num) ROUND256(p0, p1, p2, p3, ROT, r_num) + +#define I256(R) \ + do { \ + /* inject the key schedule value */ \ + X0 += ks[r + (R) + 0]; \ + X1 += ks[r + (R) + 1] + ts[r + (R) + 0];\ + X2 += ks[r + (R) + 2] + ts[r + (R) + 1];\ + X3 += ks[r + (R) + 3] + r + (R); \ + /* rotate key schedule */ \ + ks[r + (R) + 4] = ks[r + (R) - 1]; \ + ts[r + (R) + 2] = ts[r + (R) - 1]; \ + } while (0) +#endif +#define R256_8_ROUNDS(R) \ + do { \ + R256(0, 1, 2, 3, R_256_0, 8 * (R) + 1); \ + R256(0, 3, 2, 1, R_256_1, 8 * (R) + 2); \ + R256(0, 1, 2, 3, R_256_2, 8 * (R) + 3); \ + R256(0, 3, 2, 1, R_256_3, 8 * (R) + 4); \ + I256(2 * (R)); \ + R256(0, 1, 2, 3, R_256_4, 8 * (R) + 5); \ + R256(0, 3, 2, 1, R_256_5, 8 * (R) + 6); \ + R256(0, 1, 2, 3, R_256_6, 8 * (R) + 7); \ + R256(0, 3, 2, 1, R_256_7, 8 * (R) + 8); \ + I256(2 * (R) + 1); \ + } while (0) + +#define R256_UNROLL_R(NN) \ + ((SKEIN_UNROLL_256 == 0 && \ + SKEIN_256_ROUNDS_TOTAL / 8 > (NN)) || \ + (SKEIN_UNROLL_256 > (NN))) + +#if (SKEIN_UNROLL_256 > 14) +#error "need more unrolling in skein_256_process_block" +#endif +#endif + +#if !(SKEIN_USE_ASM & 512) +#undef RCNT +#define RCNT (SKEIN_512_ROUNDS_TOTAL / 8) + +#ifdef SKEIN_LOOP /* configure how much to unroll the loop */ +#define SKEIN_UNROLL_512 (((SKEIN_LOOP) / 10) % 10) +#else +#define SKEIN_UNROLL_512 (0) +#endif + +#if SKEIN_UNROLL_512 +#if (RCNT % SKEIN_UNROLL_512) +#error "Invalid SKEIN_UNROLL_512" /* sanity check on unroll count */ +#endif +#endif +#define ROUND512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) \ + do { \ + X##p0 += X##p1; \ + X##p1 = rol64(X##p1, ROT##_0); \ + X##p1 ^= X##p0; \ + X##p2 += X##p3; \ + X##p3 = rol64(X##p3, ROT##_1); \ + X##p3 ^= X##p2; \ + X##p4 += X##p5; \ + X##p5 = rol64(X##p5, ROT##_2); \ + X##p5 ^= X##p4; \ + X##p6 += X##p7; \ + X##p7 = rol64(X##p7, ROT##_3); \ + X##p7 ^= X##p6; \ + } while (0) + +#if SKEIN_UNROLL_512 == 0 +#define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) /* unrolled */ \ + ROUND512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) + +#define I512(R) \ + do { \ + /* inject the key schedule value */ \ + X0 += ks[((R) + 1) % 9]; \ + X1 += ks[((R) + 2) % 9]; \ + X2 += ks[((R) + 3) % 9]; \ + X3 += ks[((R) + 4) % 9]; \ + X4 += ks[((R) + 5) % 9]; \ + X5 += ks[((R) + 6) % 9] + ts[((R) + 1) % 3]; \ + X6 += ks[((R) + 7) % 9] + ts[((R) + 2) % 3]; \ + X7 += ks[((R) + 8) % 9] + (R) + 1; \ + } while (0) + +#else /* looping version */ +#define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) \ + ROUND512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) \ + +#define I512(R) \ + do { \ + /* inject the key schedule value */ \ + X0 += ks[r + (R) + 0]; \ + X1 += ks[r + (R) + 1]; \ + X2 += ks[r + (R) + 2]; \ + X3 += ks[r + (R) + 3]; \ + X4 += ks[r + (R) + 4]; \ + X5 += ks[r + (R) + 5] + ts[r + (R) + 0]; \ + X6 += ks[r + (R) + 6] + ts[r + (R) + 1]; \ + X7 += ks[r + (R) + 7] + r + (R); \ + /* rotate key schedule */ \ + ks[r + (R) + 8] = ks[r + (R) - 1]; \ + ts[r + (R) + 2] = ts[r + (R) - 1]; \ + } while (0) +#endif /* end of looped code definitions */ +#define R512_8_ROUNDS(R) /* do 8 full rounds */ \ + do { \ + R512(0, 1, 2, 3, 4, 5, 6, 7, R_512_0, 8 * (R) + 1); \ + R512(2, 1, 4, 7, 6, 5, 0, 3, R_512_1, 8 * (R) + 2); \ + R512(4, 1, 6, 3, 0, 5, 2, 7, R_512_2, 8 * (R) + 3); \ + R512(6, 1, 0, 7, 2, 5, 4, 3, R_512_3, 8 * (R) + 4); \ + I512(2 * (R)); \ + R512(0, 1, 2, 3, 4, 5, 6, 7, R_512_4, 8 * (R) + 5); \ + R512(2, 1, 4, 7, 6, 5, 0, 3, R_512_5, 8 * (R) + 6); \ + R512(4, 1, 6, 3, 0, 5, 2, 7, R_512_6, 8 * (R) + 7); \ + R512(6, 1, 0, 7, 2, 5, 4, 3, R_512_7, 8 * (R) + 8); \ + I512(2 * (R) + 1); /* and key injection */ \ + } while (0) +#define R512_UNROLL_R(NN) \ + ((SKEIN_UNROLL_512 == 0 && \ + SKEIN_512_ROUNDS_TOTAL / 8 > (NN)) || \ + (SKEIN_UNROLL_512 > (NN))) + +#if (SKEIN_UNROLL_512 > 14) +#error "need more unrolling in skein_512_process_block" +#endif +#endif + +#if !(SKEIN_USE_ASM & 1024) +#undef RCNT +#define RCNT (SKEIN_1024_ROUNDS_TOTAL / 8) +#ifdef SKEIN_LOOP /* configure how much to unroll the loop */ +#define SKEIN_UNROLL_1024 ((SKEIN_LOOP) % 10) +#else +#define SKEIN_UNROLL_1024 (0) +#endif + +#if (SKEIN_UNROLL_1024 != 0) +#if (RCNT % SKEIN_UNROLL_1024) +#error "Invalid SKEIN_UNROLL_1024" /* sanity check on unroll count */ +#endif +#endif +#define ROUND1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, \ + pF, ROT, r_num) \ + do { \ + X##p0 += X##p1; \ + X##p1 = rol64(X##p1, ROT##_0); \ + X##p1 ^= X##p0; \ + X##p2 += X##p3; \ + X##p3 = rol64(X##p3, ROT##_1); \ + X##p3 ^= X##p2; \ + X##p4 += X##p5; \ + X##p5 = rol64(X##p5, ROT##_2); \ + X##p5 ^= X##p4; \ + X##p6 += X##p7; \ + X##p7 = rol64(X##p7, ROT##_3); \ + X##p7 ^= X##p6; \ + X##p8 += X##p9; \ + X##p9 = rol64(X##p9, ROT##_4); \ + X##p9 ^= X##p8; \ + X##pA += X##pB; \ + X##pB = rol64(X##pB, ROT##_5); \ + X##pB ^= X##pA; \ + X##pC += X##pD; \ + X##pD = rol64(X##pD, ROT##_6); \ + X##pD ^= X##pC; \ + X##pE += X##pF; \ + X##pF = rol64(X##pF, ROT##_7); \ + X##pF ^= X##pE; \ + } while (0) + +#if SKEIN_UNROLL_1024 == 0 +#define R1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, \ + ROT, rn) \ + ROUND1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, \ + pF, ROT, rn) \ + +#define I1024(R) \ + do { \ + /* inject the key schedule value */ \ + X00 += ks[((R) + 1) % 17]; \ + X01 += ks[((R) + 2) % 17]; \ + X02 += ks[((R) + 3) % 17]; \ + X03 += ks[((R) + 4) % 17]; \ + X04 += ks[((R) + 5) % 17]; \ + X05 += ks[((R) + 6) % 17]; \ + X06 += ks[((R) + 7) % 17]; \ + X07 += ks[((R) + 8) % 17]; \ + X08 += ks[((R) + 9) % 17]; \ + X09 += ks[((R) + 10) % 17]; \ + X10 += ks[((R) + 11) % 17]; \ + X11 += ks[((R) + 12) % 17]; \ + X12 += ks[((R) + 13) % 17]; \ + X13 += ks[((R) + 14) % 17] + ts[((R) + 1) % 3]; \ + X14 += ks[((R) + 15) % 17] + ts[((R) + 2) % 3]; \ + X15 += ks[((R) + 16) % 17] + (R) + 1; \ + } while (0) +#else /* looping version */ +#define R1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, \ + ROT, rn) \ + ROUND1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, \ + pF, ROT, rn) \ + +#define I1024(R) \ + do { \ + /* inject the key schedule value */ \ + X00 += ks[r + (R) + 0]; \ + X01 += ks[r + (R) + 1]; \ + X02 += ks[r + (R) + 2]; \ + X03 += ks[r + (R) + 3]; \ + X04 += ks[r + (R) + 4]; \ + X05 += ks[r + (R) + 5]; \ + X06 += ks[r + (R) + 6]; \ + X07 += ks[r + (R) + 7]; \ + X08 += ks[r + (R) + 8]; \ + X09 += ks[r + (R) + 9]; \ + X10 += ks[r + (R) + 10]; \ + X11 += ks[r + (R) + 11]; \ + X12 += ks[r + (R) + 12]; \ + X13 += ks[r + (R) + 13] + ts[r + (R) + 0]; \ + X14 += ks[r + (R) + 14] + ts[r + (R) + 1]; \ + X15 += ks[r + (R) + 15] + r + (R); \ + /* rotate key schedule */ \ + ks[r + (R) + 16] = ks[r + (R) - 1]; \ + ts[r + (R) + 2] = ts[r + (R) - 1]; \ + } while (0) + +#endif +#define R1024_8_ROUNDS(R) \ + do { \ + R1024(00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, \ + 13, 14, 15, R1024_0, 8 * (R) + 1); \ + R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, \ + 05, 08, 01, R1024_1, 8 * (R) + 2); \ + R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, \ + 11, 10, 09, R1024_2, 8 * (R) + 3); \ + R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, \ + 03, 12, 07, R1024_3, 8 * (R) + 4); \ + I1024(2 * (R)); \ + R1024(00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, \ + 13, 14, 15, R1024_4, 8 * (R) + 5); \ + R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, \ + 05, 08, 01, R1024_5, 8 * (R) + 6); \ + R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, \ + 11, 10, 09, R1024_6, 8 * (R) + 7); \ + R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, \ + 03, 12, 07, R1024_7, 8 * (R) + 8); \ + I1024(2 * (R) + 1); \ + } while (0) + +#define R1024_UNROLL_R(NN) \ + ((SKEIN_UNROLL_1024 == 0 && \ + SKEIN_1024_ROUNDS_TOTAL / 8 > (NN)) || \ + (SKEIN_UNROLL_1024 > (NN))) + +#if (SKEIN_UNROLL_1024 > 14) +#error "need more unrolling in Skein_1024_Process_Block" +#endif +#endif + void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blk_ptr, size_t blk_cnt, size_t byte_cnt_add); void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blk_ptr, |