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