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118 lines
2.8 KiB
118 lines
2.8 KiB
/* |
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* whirlpool routine (djm) |
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* whirlpoolx routine (provos alexis, tpruvot) |
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*/ |
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extern "C" { |
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#include "sph/sph_whirlpool.h" |
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} |
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#include "miner.h" |
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#include "cuda_helper.h" |
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static uint32_t *d_hash[MAX_GPUS]; |
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extern void whirlpoolx_cpu_init(int thr_id, uint32_t threads); |
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extern void whirlpoolx_cpu_free(int thr_id); |
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extern void whirlpoolx_setBlock_80(void *pdata, const void *ptarget); |
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extern uint32_t whirlpoolx_cpu_hash(int thr_id, uint32_t threads, uint32_t startNounce); |
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extern void whirlpoolx_precompute(int thr_id); |
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// CPU Hash function |
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extern "C" void whirlxHash(void *state, const void *input) |
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{ |
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sph_whirlpool_context ctx_whirlpool; |
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unsigned char hash[64]; |
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unsigned char hash_xored[32]; |
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sph_whirlpool_init(&ctx_whirlpool); |
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sph_whirlpool(&ctx_whirlpool, input, 80); |
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sph_whirlpool_close(&ctx_whirlpool, hash); |
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// compress the 48 first bytes of the hash to 32 |
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for (int i = 0; i < 32; i++) { |
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hash_xored[i] = hash[i] ^ hash[i + 16]; |
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} |
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memcpy(state, hash_xored, 32); |
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} |
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static bool init[MAX_GPUS] = { 0 }; |
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extern "C" int scanhash_whirlx(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done) |
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{ |
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uint32_t *pdata = work->data; |
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uint32_t *ptarget = work->target; |
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const uint32_t first_nonce = pdata[19]; |
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uint32_t endiandata[20]; |
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int intensity = is_windows() ? 20 : 22; |
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uint32_t throughput = device_intensity(thr_id, __func__, 1U << intensity); |
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throughput = min(throughput, max_nonce - first_nonce); |
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if (opt_benchmark) |
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((uint32_t*)ptarget)[7] = 0x0000ff; |
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if (!init[thr_id]) { |
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cudaSetDevice(device_map[thr_id]); |
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CUDA_CALL_OR_RET_X(cudaMalloc(&d_hash[thr_id], 64 * throughput), 0); |
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whirlpoolx_cpu_init(thr_id, throughput); |
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init[thr_id] = true; |
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} |
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for (int k=0; k < 20; k++) { |
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be32enc(&endiandata[k], pdata[k]); |
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} |
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whirlpoolx_setBlock_80((void*)endiandata, ptarget); |
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whirlpoolx_precompute(thr_id); |
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do { |
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uint32_t foundNonce = whirlpoolx_cpu_hash(thr_id, throughput, pdata[19]); |
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if (foundNonce != UINT32_MAX) |
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{ |
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const uint32_t Htarg = ptarget[7]; |
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uint32_t vhash64[8]; |
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be32enc(&endiandata[19], foundNonce); |
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whirlxHash(vhash64, endiandata); |
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*hashes_done = pdata[19] - first_nonce + throughput; |
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if (vhash64[7] <= Htarg && fulltest(vhash64, ptarget)) { |
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bn_store_hash_target_ratio(vhash64, ptarget, work); |
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pdata[19] = foundNonce; |
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return 1; |
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} else { |
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applog(LOG_WARNING, "GPU #%d: result for %08x does not validate on CPU!", device_map[thr_id], foundNonce); |
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} |
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} |
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pdata[19] += throughput; |
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if (((uint64_t)pdata[19]+throughput) >= max_nonce) { |
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break; |
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} |
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} while (!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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// cleanup |
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extern "C" void free_whirlx(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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cudaFree(d_hash[thr_id]); |
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whirlpoolx_cpu_free(thr_id); |
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init[thr_id] = false; |
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cudaDeviceSynchronize(); |
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} |