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Implement low power mode (double hash).

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XMRig 2017-05-01 03:49:05 +03:00
parent caf7cda1d5
commit 1678dc1d6d
18 changed files with 686 additions and 390 deletions
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111
algo/cryptonight/cryptonight_av2_aesni_double.c Normal file
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/* XMRig
* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
* Copyright 2017 fireice-uk <https://github.com/fireice-uk>
* Copyright 2016-2017 XMRig <support@xmrig.com>
*
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <x86intrin.h>
#include <string.h>
#include "cryptonight.h"
#include "cryptonight_aesni.h"
#include "crypto/c_keccak.h"
void cryptonight_av2_aesni_double(const void *restrict input, size_t size, void *restrict output, struct cryptonight_ctx *restrict ctx)
{
keccak((const uint8_t *) input, size, ctx->state0, 200);
keccak((const uint8_t *) input + size, size, ctx->state1, 200);
const uint8_t* l0 = ctx->memory;
const uint8_t* l1 = ctx->memory + MEMORY;
uint64_t* h0 = (uint64_t*) ctx->state0;
uint64_t* h1 = (uint64_t*) ctx->state1;
cn_explode_scratchpad((__m128i*) h0, (__m128i*) l0);
cn_explode_scratchpad((__m128i*) h1, (__m128i*) l1);
uint64_t al0 = h0[0] ^ h0[4];
uint64_t al1 = h1[0] ^ h1[4];
uint64_t ah0 = h0[1] ^ h0[5];
uint64_t ah1 = h1[1] ^ h1[5];
__m128i bx0 = _mm_set_epi64x(h0[3] ^ h0[7], h0[2] ^ h0[6]);
__m128i bx1 = _mm_set_epi64x(h1[3] ^ h1[7], h1[2] ^ h1[6]);
uint64_t idx0 = h0[0] ^ h0[4];
uint64_t idx1 = h1[0] ^ h1[4];
for (size_t i = 0; __builtin_expect(i < 0x80000, 1); i++) {
__m128i cx0 = _mm_load_si128((__m128i *) &l0[idx0 & 0x1FFFF0]);
__m128i cx1 = _mm_load_si128((__m128i *) &l1[idx1 & 0x1FFFF0]);
cx0 = _mm_aesenc_si128(cx0, _mm_set_epi64x(ah0, al0));
cx1 = _mm_aesenc_si128(cx1, _mm_set_epi64x(ah1, al1));
_mm_store_si128((__m128i *) &l0[idx0 & 0x1FFFF0], _mm_xor_si128(bx0, cx0));
_mm_store_si128((__m128i *) &l1[idx1 & 0x1FFFF0], _mm_xor_si128(bx1, cx1));
idx0 = EXTRACT64(cx0);
idx1 = EXTRACT64(cx1);
bx0 = cx0;
bx1 = cx1;
uint64_t hi, lo, cl, ch;
cl = ((uint64_t*) &l0[idx0 & 0x1FFFF0])[0];
ch = ((uint64_t*) &l0[idx0 & 0x1FFFF0])[1];
lo = _umul128(idx0, cl, &hi);
al0 += hi;
ah0 += lo;
((uint64_t*) &l0[idx0 & 0x1FFFF0])[0] = al0;
((uint64_t*) &l0[idx0 & 0x1FFFF0])[1] = ah0;
ah0 ^= ch;
al0 ^= cl;
idx0 = al0;
cl = ((uint64_t*) &l1[idx1 & 0x1FFFF0])[0];
ch = ((uint64_t*) &l1[idx1 & 0x1FFFF0])[1];
lo = _umul128(idx1, cl, &hi);
al1 += hi;
ah1 += lo;
((uint64_t*) &l1[idx1 & 0x1FFFF0])[0] = al1;
((uint64_t*) &l1[idx1 & 0x1FFFF0])[1] = ah1;
ah1 ^= ch;
al1 ^= cl;
idx1 = al1;
}
cn_implode_scratchpad((__m128i*) l0, (__m128i*) h0);
cn_implode_scratchpad((__m128i*) l1, (__m128i*) h1);
keccakf(h0, 24);
keccakf(h1, 24);
extra_hashes[ctx->state0[0] & 3](ctx->state0, 200, output);
extra_hashes[ctx->state1[0] & 3](ctx->state1, 200, (char*) output + 32);
}