GOSTcoin support for ccminer CUDA miner project, compatible with most nvidia cards
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/*
* whirlpool routine (djm)
*/
extern "C"
{
#include "sph/sph_whirlpool.h"
#include "miner.h"
}
#include "cuda_helper.h"
static uint32_t *d_hash[MAX_GPUS];
extern void x15_whirlpool_cpu_init(int thr_id, uint32_t threads, int mode);
extern void x15_whirlpool_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
extern void x15_whirlpool_cpu_free(int thr_id);
extern void whirlpool512_setBlock_80(void *pdata, const void *ptarget);
extern void whirlpool512_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_hash, int order);
extern uint32_t whirlpool512_cpu_finalhash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
// CPU Hash function
extern "C" void wcoinhash(void *state, const void *input)
{
sph_whirlpool_context ctx_whirlpool;
unsigned char hash[128]; // uint32_t hashA[16], hashB[16];
#define hashB hash+64
memset(hash, 0, sizeof hash);
sph_whirlpool1_init(&ctx_whirlpool);
sph_whirlpool1(&ctx_whirlpool, input, 80);
sph_whirlpool1_close(&ctx_whirlpool, hash);
sph_whirlpool1_init(&ctx_whirlpool);
sph_whirlpool1(&ctx_whirlpool, hash, 64);
sph_whirlpool1_close(&ctx_whirlpool, hashB);
sph_whirlpool1_init(&ctx_whirlpool);
sph_whirlpool1(&ctx_whirlpool, hashB, 64);
sph_whirlpool1_close(&ctx_whirlpool, hash);
sph_whirlpool1_init(&ctx_whirlpool);
sph_whirlpool1(&ctx_whirlpool, hash, 64);
sph_whirlpool1_close(&ctx_whirlpool, hash);
memcpy(state, hash, 32);
}
static bool init[MAX_GPUS] = { 0 };
extern "C" int scanhash_whirl(int thr_id, struct work* work, uint32_t max_nonce, unsigned long *hashes_done)
{
uint32_t _ALIGN(128) endiandata[20];
uint32_t* pdata = work->data;
uint32_t* ptarget = work->target;
const uint32_t first_nonce = pdata[19];
uint32_t throughput = cuda_default_throughput(thr_id, 1U << 19); // 19=256*256*8;
if (init[thr_id]) throughput = min(throughput, max_nonce - first_nonce);
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x0000ff;
if (!init[thr_id]) {
cudaSetDevice(device_map[thr_id]);
cudaMalloc(&d_hash[thr_id], 16 * sizeof(uint32_t) * throughput);
x15_whirlpool_cpu_init(thr_id, throughput, 1 /* old whirlpool */);
init[thr_id] = true;
}
for (int k=0; k < 20; k++) {
be32enc(&endiandata[k], pdata[k]);
}
whirlpool512_setBlock_80((void*)endiandata, ptarget);
do {
uint32_t foundNonce;
int order = 0;
whirlpool512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], order++);
x15_whirlpool_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
x15_whirlpool_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
foundNonce = whirlpool512_cpu_finalhash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
if (foundNonce != UINT32_MAX)
{
const uint32_t Htarg = ptarget[7];
uint32_t vhash[8];
be32enc(&endiandata[19], foundNonce);
wcoinhash(vhash, endiandata);
if (vhash[7] <= Htarg && fulltest(vhash, ptarget)) {
int res = 1;
*hashes_done = pdata[19] - first_nonce + throughput;
work_set_target_ratio(work, vhash);
#if 0
uint32_t secNonce = cuda_check_hash_suppl(thr_id, throughput, pdata[19], d_hash[thr_id], 1);
if (secNonce != 0) {
pdata[21] = secNonce;
res++;
}
#endif
pdata[19] = foundNonce;
return res;
} else {
applog(LOG_WARNING, "GPU #%d: result for %08x does not validate on CPU!", device_map[thr_id], foundNonce);
}
}
pdata[19] += throughput;
} while (pdata[19] < max_nonce && !work_restart[thr_id].restart);
*hashes_done = pdata[19] - first_nonce;
return 0;
}
// cleanup
extern "C" void free_whirl(int thr_id)
{
if (!init[thr_id])
return;
cudaSetDevice(device_map[thr_id]);
cudaFree(d_hash[thr_id]);
x15_whirlpool_cpu_free(thr_id);
init[thr_id] = false;
cudaDeviceSynchronize();
}