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116 lines
2.9 KiB
116 lines
2.9 KiB
#include <string.h> |
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#include <stdint.h> |
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#include <cuda_runtime.h> |
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#include "sph/sph_fugue.h" |
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#include "miner.h" |
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#include "cuda_fugue256.h" |
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extern "C" void my_fugue256_init(void *cc); |
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extern "C" void my_fugue256(void *cc, const void *data, size_t len); |
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extern "C" void my_fugue256_close(void *cc, void *dst); |
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extern "C" void my_fugue256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); |
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// vorbereitete Kontexte nach den ersten 80 Bytes |
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// sph_fugue256_context ctx_fugue_const[MAX_GPUS]; |
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#define SWAP32(x) \ |
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((((x) << 24) & 0xff000000u) | (((x) << 8) & 0x00ff0000u) | \ |
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(((x) >> 8) & 0x0000ff00u) | (((x) >> 24) & 0x000000ffu)) |
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void fugue256_hash(unsigned char* output, const unsigned char* input, int len) |
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{ |
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sph_fugue256_context ctx; |
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sph_fugue256_init(&ctx); |
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sph_fugue256(&ctx, input, len); |
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sph_fugue256_close(&ctx, (void *)output); |
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} |
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static bool init[MAX_GPUS] = { 0 }; |
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int scanhash_fugue256(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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uint32_t start_nonce = pdata[19]++; |
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int intensity = (device_sm[device_map[thr_id]] > 500) ? 22 : 19; |
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uint32_t throughput = device_intensity(thr_id, __func__, 1 << intensity); // 256*256*8 |
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throughput = min(throughput, max_nonce - start_nonce); |
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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0xf; |
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// init |
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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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fugue256_cpu_init(thr_id, throughput); |
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init[thr_id] = true; |
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} |
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// Endian |
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for (int kk=0; kk < 20; kk++) |
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be32enc(&endiandata[kk], pdata[kk]); |
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// Context mit dem Endian gedrehten Blockheader vorbereiten (Nonce wird später ersetzt) |
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fugue256_cpu_setBlock(thr_id, endiandata, (void*)ptarget); |
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do { |
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// GPU |
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uint32_t foundNounce = UINT32_MAX; |
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fugue256_cpu_hash(thr_id, throughput, pdata[19], NULL, &foundNounce); |
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if (foundNounce < UINT32_MAX) |
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{ |
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uint32_t vhash[8]; |
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sph_fugue256_context ctx_fugue; |
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endiandata[19] = SWAP32(foundNounce); |
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sph_fugue256_init(&ctx_fugue); |
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sph_fugue256 (&ctx_fugue, endiandata, 80); |
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sph_fugue256_close(&ctx_fugue, &vhash); |
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if (vhash[7] <= ptarget[7] && fulltest(vhash, ptarget)) |
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{ |
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work_set_target_ratio(work, vhash); |
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pdata[19] = foundNounce; |
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*hashes_done = foundNounce - start_nonce + 1; |
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return 1; |
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} else { |
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applog(LOG_WARNING, "GPU #%d: result for nonce %08x does not validate on CPU!", |
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device_map[thr_id], foundNounce); |
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} |
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} |
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if ((uint64_t) pdata[19] + throughput > (uint64_t) 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] - start_nonce + 1; |
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return 0; |
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} |
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// cleanup |
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void free_fugue256(int thr_id) |
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{ |
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if (!init[thr_id]) |
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return; |
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cudaSetDevice(device_map[thr_id]); |
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fugue256_cpu_free(thr_id); |
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init[thr_id] = false; |
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cudaDeviceSynchronize(); |
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} |