extern "C" { #include "sph/sph_streebog.h" } #include "miner.h" #include "cuda_helper.h" #include <stdio.h> #include <memory.h> #define NBN 2 // GOST CPU Hash extern "C" void gostd_hash(void *output, const void *input) { unsigned char _ALIGN(64) hash[64]; sph_gost512(hash, (const void*)input, 80); sph_gost256(hash, (const void*)hash, 64); memcpy(output, hash, 32); } extern "C" void gostd(void *output, const void *input, size_t len) { unsigned char _ALIGN(64) hash[64]; sph_gost512(hash, (const void*)input, len); sph_gost256(hash, (const void*)hash, 64); memcpy(output, hash, 32); } //#define _DEBUG #define _DEBUG_PREFIX "gost" #include "cuda_debug.cuh" static bool init[MAX_GPUS] = { 0 }; extern void gostd_init(int thr_id); extern void gostd_free(int thr_id); extern void gostd_setBlock_80(uint32_t *pdata, uint32_t *ptarget); extern void gostd_hash_80(int thr_id, uint32_t threads, uint32_t startNonce, uint32_t *resNonces); extern "C" int scanhash_gostd(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done) { uint32_t _ALIGN(64) endiandata[20]; uint32_t *pdata = work->data; uint32_t *ptarget = work->target; //ptarget[7] = 0x000000FF; const uint32_t first_nonce = pdata[19]; uint32_t throughput = cuda_default_throughput(thr_id, 1U << 25); if (init[thr_id]) throughput = min(throughput, (max_nonce - first_nonce)); if (opt_benchmark) ((uint32_t*)ptarget)[7] = 0x03; if (!init[thr_id]) { cudaSetDevice(device_map[thr_id]); if (opt_cudaschedule == -1 && gpu_threads == 1) { cudaDeviceReset(); // reduce cpu usage cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync); CUDA_LOG_ERROR(); } gpulog(LOG_INFO, thr_id, "Intensity set to %g, %u cuda threads", throughput2intensity(throughput), throughput); gostd_init(thr_id); init[thr_id] = true; } for (int k=0; k < 19; k++) be32enc(&endiandata[k], pdata[k]); gostd_setBlock_80(endiandata, ptarget); do { // Hash with CUDA *hashes_done = pdata[19] - first_nonce + throughput; gostd_hash_80(thr_id, throughput, pdata[19], work->nonces); if (work->nonces[0] != UINT32_MAX) { uint32_t _ALIGN(64) vhash[8]; uint32_t _ALIGN(64) vhash_le[8]; endiandata[19] = swab32 (work->nonces[0]); gostd_hash(vhash, endiandata); if (swab32(vhash[0]) <= ptarget[7] /*&& fulltest(vhash, ptarget)*/) { work->valid_nonces = 1; for (int i = 0; i < 8; i++) vhash_le[i] = swab32(vhash[7-i]); work_set_target_ratio(work, vhash_le); if (work->nonces[1] != UINT32_MAX) { endiandata[19] = swab32 (work->nonces[1]); gostd_hash(vhash, endiandata); if (swab32(vhash[0]) <= ptarget[7] /*&& fulltest(vhash, ptarget)*/) { work->valid_nonces++; bn_set_target_ratio(work, vhash, 1); } pdata[19] = max(work->nonces[0], work->nonces[1]); } else pdata[19] = work->nonces[0]; return work->valid_nonces; } else if (swab32(vhash[0]) > ptarget[7]) { gpu_increment_reject(thr_id); if (!opt_quiet) gpulog(LOG_WARNING, thr_id, "result for %08x does not validate on CPU!", work->nonces[0]); pdata[19] = work->nonces[0] + 1; continue; } } if ((uint64_t) throughput + pdata[19] >= max_nonce) { pdata[19] = max_nonce; break; } pdata[19] += throughput; } while (!work_restart[thr_id].restart); *hashes_done = pdata[19] - first_nonce; return 0; } // cleanup extern "C" void free_gostd(int thr_id) { if (!init[thr_id]) return; cudaThreadSynchronize(); gostd_free(thr_id); init[thr_id] = false; cudaDeviceSynchronize(); }