GOSTcoin support for ccminer CUDA miner project, compatible with most nvidia cards
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/*
* luffa 80 algo (Introduced by Doomcoin)
*/
extern "C" {
#include "sph/sph_luffa.h"
}
#include "miner.h"
#include "cuda_helper.h"
static uint32_t *d_hash[MAX_GPUS];
extern void qubit_luffa512_cpu_init(int thr_id, uint32_t threads);
extern void qubit_luffa512_cpu_setBlock_80(void *pdata);
extern void qubit_luffa512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int order);
extern "C" void luffa_hash(void *state, const void *input)
{
uint8_t _ALIGN(64) hash[64];
sph_luffa512_context ctx_luffa;
sph_luffa512_init(&ctx_luffa);
sph_luffa512 (&ctx_luffa, input, 80);
sph_luffa512_close(&ctx_luffa, (void*) hash);
memcpy(state, hash, 32);
}
static bool init[MAX_GPUS] = { 0 };
extern "C" int scanhash_luffa(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
uint32_t max_nonce, unsigned long *hashes_done)
{
uint32_t _ALIGN(64) endiandata[20];
const uint32_t first_nonce = pdata[19];
uint32_t throughput = device_intensity(thr_id, __func__, 1U << 22); // 256*256*8*8
throughput = min(throughput, max_nonce - first_nonce);
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x0000f;
if (!init[thr_id])
{
cudaSetDevice(device_map[thr_id]);
CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], throughput * 64));
qubit_luffa512_cpu_init(thr_id, throughput);
cuda_check_cpu_init(thr_id, throughput);
init[thr_id] = true;
}
for (int k=0; k < 19; k++)
be32enc(&endiandata[k], pdata[k]);
qubit_luffa512_cpu_setBlock_80((void*)endiandata);
cuda_check_cpu_setTarget(ptarget);
do {
int order = 0;
*hashes_done = pdata[19] - first_nonce + throughput;
qubit_luffa512_cpu_hash_80(thr_id, (int) throughput, pdata[19], d_hash[thr_id], order++);
uint32_t foundNonce = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]);
if (foundNonce != UINT32_MAX)
{
uint32_t _ALIGN(64) vhash64[8];
be32enc(&endiandata[19], foundNonce);
luffa_hash(vhash64, endiandata);
if (vhash64[7] <= ptarget[7] && fulltest(vhash64, ptarget)) {
//*hashes_done = min(max_nonce - first_nonce, (uint64_t) pdata[19] - first_nonce + throughput);
pdata[19] = foundNonce;
return 1;
} else {
applog(LOG_WARNING, "GPU #%d: result for nonce %08x does not validate on CPU!", device_map[thr_id], foundNonce);
}
}
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 + 1;
return 0;
}