diff options
Diffstat (limited to 'libbb/hash_sha256_hwaccel_x86-32.S')
| -rw-r--r-- | libbb/hash_sha256_hwaccel_x86-32.S | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/libbb/hash_sha256_hwaccel_x86-32.S b/libbb/hash_sha256_hwaccel_x86-32.S new file mode 100644 index 000000000..a0e4a571a --- /dev/null +++ b/libbb/hash_sha256_hwaccel_x86-32.S @@ -0,0 +1,284 @@ +#if ENABLE_SHA256_HWACCEL && defined(__GNUC__) && defined(__i386__) +/* The code is adapted from Linux kernel's source */ + +// We use shorter insns, even though they are for "wrong" +// data type (fp, not int). +// For Intel, there is no penalty for doing it at all +// (CPUs which do have such penalty do not support SHA insns). +// For AMD, the penalty is one extra cycle +// (allegedly: I failed to find measurable difference). + +//#define mova128 movdqa +#define mova128 movaps +//#define movu128 movdqu +#define movu128 movups +//#define shuf128_32 pshufd +#define shuf128_32 shufps + +// pshufb and palignr are SSSE3 insns. +// We do not check SSSE3 in cpuid, +// all SHA-capable CPUs support it as well. + +#ifdef __linux__ + .section .note.GNU-stack, "", @progbits +#endif + .section .text.sha256_process_block64_shaNI, "ax", @progbits + .globl sha256_process_block64_shaNI + .hidden sha256_process_block64_shaNI + .type sha256_process_block64_shaNI, @function + +#define DATA_PTR %eax + +#define SHA256CONSTANTS %ecx + +#define MSG %xmm0 +#define STATE0 %xmm1 +#define STATE1 %xmm2 +#define MSGTMP0 %xmm3 +#define MSGTMP1 %xmm4 +#define MSGTMP2 %xmm5 +#define MSGTMP3 %xmm6 + +#define XMMTMP %xmm7 + +#define SHUF(a,b,c,d) $(a+(b<<2)+(c<<4)+(d<<6)) + + .balign 8 # allow decoders to fetch at least 2 first insns +sha256_process_block64_shaNI: + + movu128 76+0*16(%eax), XMMTMP /* ABCD (little-endian dword order) */ + movu128 76+1*16(%eax), STATE1 /* EFGH */ +/* shufps takes dwords 0,1 from *2nd* operand, and dwords 2,3 from 1st one */ + mova128 STATE1, STATE0 + /* --- -------------- ABCD -- EFGH */ + shufps SHUF(1,0,1,0), XMMTMP, STATE0 /* FEBA */ + shufps SHUF(3,2,3,2), XMMTMP, STATE1 /* HGDC */ + +/* XMMTMP holds flip mask from here... */ + mova128 PSHUFFLE_BSWAP32_FLIP_MASK, XMMTMP + movl $K256+8*16, SHA256CONSTANTS + + /* Rounds 0-3 */ + movu128 0*16(DATA_PTR), MSG + pshufb XMMTMP, MSG + mova128 MSG, MSGTMP0 + paddd 0*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + + /* Rounds 4-7 */ + movu128 1*16(DATA_PTR), MSG + pshufb XMMTMP, MSG + mova128 MSG, MSGTMP1 + paddd 1*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 8-11 */ + movu128 2*16(DATA_PTR), MSG + pshufb XMMTMP, MSG + mova128 MSG, MSGTMP2 + paddd 2*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 12-15 */ + movu128 3*16(DATA_PTR), MSG + pshufb XMMTMP, MSG +/* ...to here */ + mova128 MSG, MSGTMP3 + paddd 3*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP3, XMMTMP + palignr $4, MSGTMP2, XMMTMP + paddd XMMTMP, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 16-19 */ + mova128 MSGTMP0, MSG + paddd 4*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP0, XMMTMP + palignr $4, MSGTMP3, XMMTMP + paddd XMMTMP, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 20-23 */ + mova128 MSGTMP1, MSG + paddd 5*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP1, XMMTMP + palignr $4, MSGTMP0, XMMTMP + paddd XMMTMP, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 24-27 */ + mova128 MSGTMP2, MSG + paddd 6*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP2, XMMTMP + palignr $4, MSGTMP1, XMMTMP + paddd XMMTMP, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 28-31 */ + mova128 MSGTMP3, MSG + paddd 7*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP3, XMMTMP + palignr $4, MSGTMP2, XMMTMP + paddd XMMTMP, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 32-35 */ + mova128 MSGTMP0, MSG + paddd 8*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP0, XMMTMP + palignr $4, MSGTMP3, XMMTMP + paddd XMMTMP, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 36-39 */ + mova128 MSGTMP1, MSG + paddd 9*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP1, XMMTMP + palignr $4, MSGTMP0, XMMTMP + paddd XMMTMP, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 40-43 */ + mova128 MSGTMP2, MSG + paddd 10*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP2, XMMTMP + palignr $4, MSGTMP1, XMMTMP + paddd XMMTMP, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 44-47 */ + mova128 MSGTMP3, MSG + paddd 11*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP3, XMMTMP + palignr $4, MSGTMP2, XMMTMP + paddd XMMTMP, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 48-51 */ + mova128 MSGTMP0, MSG + paddd 12*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP0, XMMTMP + palignr $4, MSGTMP3, XMMTMP + paddd XMMTMP, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 52-55 */ + mova128 MSGTMP1, MSG + paddd 13*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP1, XMMTMP + palignr $4, MSGTMP0, XMMTMP + paddd XMMTMP, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + + /* Rounds 56-59 */ + mova128 MSGTMP2, MSG + paddd 14*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + mova128 MSGTMP2, XMMTMP + palignr $4, MSGTMP1, XMMTMP + paddd XMMTMP, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + + /* Rounds 60-63 */ + mova128 MSGTMP3, MSG + paddd 15*16-8*16(SHA256CONSTANTS), MSG + sha256rnds2 MSG, STATE0, STATE1 + shuf128_32 $0x0E, MSG, MSG + sha256rnds2 MSG, STATE1, STATE0 + + /* Write hash values back in the correct order */ + mova128 STATE0, XMMTMP +/* shufps takes dwords 0,1 from *2nd* operand, and dwords 2,3 from 1st one */ + /* --- -------------- HGDC -- FEBA */ + shufps SHUF(3,2,3,2), STATE1, STATE0 /* ABCD */ + shufps SHUF(1,0,1,0), STATE1, XMMTMP /* EFGH */ + /* add current hash values to previous ones */ + movu128 76+1*16(%eax), STATE1 + paddd XMMTMP, STATE1 + movu128 STATE1, 76+1*16(%eax) + movu128 76+0*16(%eax), XMMTMP + paddd XMMTMP, STATE0 + movu128 STATE0, 76+0*16(%eax) + + ret + .size sha256_process_block64_shaNI, .-sha256_process_block64_shaNI + + .section .rodata.cst256.K256, "aM", @progbits, 256 + .balign 16 +K256: + .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 + + .section .rodata.cst16.PSHUFFLE_BSWAP32_FLIP_MASK, "aM", @progbits, 16 + .balign 16 +PSHUFFLE_BSWAP32_FLIP_MASK: + .octa 0x0c0d0e0f08090a0b0405060700010203 + +#endif |