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132 lines
3.7 KiB
132 lines
3.7 KiB
/** |
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* S3 Hash (Also called 3S - Used by 1Coin) |
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*/ |
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extern "C" { |
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#include "sph/sph_skein.h" |
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#include "sph/sph_shavite.h" |
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#include "sph/sph_simd.h" |
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} |
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#include "miner.h" |
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#include "cuda_helper.h" |
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#include <stdint.h> |
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static uint32_t *d_hash[MAX_GPUS]; |
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extern void x11_shavite512_cpu_init(int thr_id, int threads); |
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extern void x11_shavite512_cpu_hash_80(int thr_id, int threads, uint32_t startNounce, uint32_t *d_hash, int order); |
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extern void x11_shavite512_setBlock_80(void *pdata); |
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extern int x11_simd512_cpu_init(int thr_id, int threads); |
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extern void x11_simd512_cpu_hash_64(int thr_id, int threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order); |
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extern void quark_skein512_cpu_init(int thr_id, int threads); |
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extern void quark_skein512_cpu_hash_64(int thr_id, int threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order); |
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/* CPU HASH */ |
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extern "C" void s3hash(void *output, const void *input) |
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{ |
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sph_shavite512_context ctx_shavite; |
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sph_simd512_context ctx_simd; |
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sph_skein512_context ctx_skein; |
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unsigned char hash[64]; |
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sph_shavite512_init(&ctx_shavite); |
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sph_shavite512(&ctx_shavite, input, 80); |
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sph_shavite512_close(&ctx_shavite, (void*) hash); |
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sph_simd512_init(&ctx_simd); |
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sph_simd512(&ctx_simd, (const void*) hash, 64); |
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sph_simd512_close(&ctx_simd, (void*) hash); |
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sph_skein512_init(&ctx_skein); |
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sph_skein512(&ctx_skein, (const void*) hash, 64); |
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sph_skein512_close(&ctx_skein, (void*) hash); |
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memcpy(output, hash, 32); |
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} |
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static bool init[MAX_GPUS] = { 0 }; |
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/* Main S3 entry point */ |
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extern "C" int scanhash_s3(int thr_id, uint32_t *pdata, |
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const uint32_t *ptarget, uint32_t max_nonce, |
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unsigned long *hashes_done) |
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{ |
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const uint32_t first_nonce = pdata[19]; |
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int intensity = 20; // 256*256*8*2; |
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#ifdef WIN32 |
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// reduce by one the intensity on windows |
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intensity--; |
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#endif |
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int throughput = (int) device_intensity(thr_id, __func__, 1 << intensity); |
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throughput = min(throughput, (int)(max_nonce - first_nonce)); |
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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0xF; |
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if (!init[thr_id]) |
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{ |
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cudaSetDevice(device_map[thr_id]); |
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x11_shavite512_cpu_init(thr_id, throughput); |
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x11_simd512_cpu_init(thr_id, throughput); |
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quark_skein512_cpu_init(thr_id, throughput); |
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CUDA_CALL_OR_RET_X(cudaMalloc(&d_hash[thr_id], 16 * sizeof(uint32_t) * throughput), 0); |
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cuda_check_cpu_init(thr_id, throughput); |
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init[thr_id] = true; |
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} |
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uint32_t endiandata[20]; |
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for (int k=0; k < 20; k++) |
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be32enc(&endiandata[k], ((uint32_t*)pdata)[k]); |
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x11_shavite512_setBlock_80((void*)endiandata); |
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cuda_check_cpu_setTarget(ptarget); |
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do { |
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const uint32_t Htarg = ptarget[7]; |
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uint32_t foundNonce; |
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int order = 0; |
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x11_shavite512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], order++); |
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x11_simd512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++); |
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quark_skein512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++); |
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foundNonce = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]); |
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if (foundNonce != UINT32_MAX) |
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{ |
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uint32_t vhash64[8]; |
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be32enc(&endiandata[19], foundNonce); |
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s3hash(vhash64, endiandata); |
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if (vhash64[7] <= Htarg && fulltest(vhash64, ptarget)) { |
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int res = 1; |
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uint32_t secNonce = cuda_check_hash_suppl(thr_id, throughput, pdata[19], d_hash[thr_id], 1); |
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*hashes_done = pdata[19] - first_nonce + throughput; |
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if (secNonce != 0) { |
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pdata[21] = secNonce; |
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res++; |
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} |
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pdata[19] = foundNonce; |
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return res; |
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} else { |
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applog(LOG_INFO, "GPU #%d: result for nonce $%08X does not validate on CPU!", thr_id, foundNonce); |
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} |
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} |
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pdata[19] += throughput; |
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} while (pdata[19] < max_nonce && !work_restart[thr_id].restart); |
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*hashes_done = pdata[19] - first_nonce + 1; |
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return 0; |
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}
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