GOSTcoin support for ccminer CUDA miner project, compatible with most nvidia cards
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/**
* Fresh algorithm
*/
extern "C" {
#include "sph/sph_shavite.h"
#include "sph/sph_simd.h"
#include "sph/sph_echo.h"
}
#include "miner.h"
#include "cuda_helper.h"
// to test gpu hash on a null buffer
#define NULLTEST 0
static uint32_t *d_hash[8];
extern void x11_shavite512_cpu_init(int thr_id, int threads);
extern void x11_shavite512_setBlock_80(void *pdata);
extern void x11_shavite512_cpu_hash_80(int thr_id, int threads, uint32_t startNounce, uint32_t *d_hash, int order);
extern void x11_shavite512_cpu_hash_64(int thr_id, int threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
extern int x11_simd512_cpu_init(int thr_id, int threads);
extern void x11_simd512_cpu_hash_64(int thr_id, int threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
extern void x11_echo512_cpu_init(int thr_id, int threads);
extern void x11_echo512_cpu_hash_64(int thr_id, int threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
extern void quark_compactTest_cpu_init(int thr_id, int threads);
extern void quark_compactTest_cpu_hash_64(int thr_id, int threads, uint32_t startNounce, uint32_t *inpHashes,
uint32_t *d_noncesTrue, size_t *nrmTrue, uint32_t *d_noncesFalse, size_t *nrmFalse,
int order);
// CPU Hash
extern "C" void fresh_hash(void *state, const void *input)
{
// shavite-simd-shavite-simd-echo
sph_shavite512_context ctx_shavite;
sph_simd512_context ctx_simd;
sph_echo512_context ctx_echo;
unsigned char hash[128]; // uint32_t hashA[16], hashB[16];
#define hashA hash
#define hashB hash+64
memset(hash, 0, sizeof hash);
sph_shavite512_init(&ctx_shavite);
sph_shavite512(&ctx_shavite, input, 80);
sph_shavite512_close(&ctx_shavite, hashA);
sph_simd512_init(&ctx_simd);
sph_simd512(&ctx_simd, hashA, 64);
sph_simd512_close(&ctx_simd, hashB);
sph_shavite512_init(&ctx_shavite);
sph_shavite512(&ctx_shavite, hashB, 64);
sph_shavite512_close(&ctx_shavite, hashA);
sph_simd512_init(&ctx_simd);
sph_simd512(&ctx_simd, hashA, 64);
sph_simd512_close(&ctx_simd, hashB);
sph_echo512_init(&ctx_echo);
sph_echo512(&ctx_echo, hashB, 64);
sph_echo512_close(&ctx_echo, hashA);
memcpy(state, hash, 32);
}
static bool init[8] = { 0 };
extern "C" int scanhash_fresh(int thr_id, uint32_t *pdata,
const uint32_t *ptarget, uint32_t max_nonce,
unsigned long *hashes_done)
{
const uint32_t first_nonce = pdata[19];
uint32_t endiandata[20];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*256*8;
throughput = min(throughput, (int) (max_nonce - first_nonce));
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x00ff;
if (!init[thr_id])
{
cudaSetDevice(device_map[thr_id]);
x11_shavite512_cpu_init(thr_id, throughput);
x11_simd512_cpu_init(thr_id, throughput);
x11_echo512_cpu_init(thr_id, throughput);
CUDA_CALL_OR_RET_X(cudaMalloc(&d_hash[thr_id], 16 * sizeof(uint32_t) * throughput + 4), 0);
cuda_check_cpu_init(thr_id, throughput);
init[thr_id] = true;
}
for (int k=0; k < 20; k++)
be32enc(&endiandata[k], ((uint32_t*)pdata)[k]);
x11_shavite512_setBlock_80((void*)endiandata);
cuda_check_cpu_setTarget(ptarget);
do {
uint32_t Htarg = ptarget[7];
uint32_t foundNonce;
int order = 0;
// GPU Hash
x11_shavite512_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], order++);
x11_simd512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
x11_shavite512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
x11_simd512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
x11_echo512_cpu_hash_64(thr_id, throughput, pdata[19], NULL, d_hash[thr_id], order++);
#if NULLTEST
uint32_t buf[8]; memset(buf, 0, sizeof buf);
CUDA_SAFE_CALL(cudaMemcpy(buf, d_hash[thr_id], sizeof buf, cudaMemcpyDeviceToHost));
CUDA_SAFE_CALL(cudaThreadSynchronize());
print_hash((unsigned char*)buf); printf("\n");
#endif
foundNonce = cuda_check_hash(thr_id, throughput, pdata[19], d_hash[thr_id]);
if (foundNonce != 0xffffffff)
{
uint32_t vhash64[8];
be32enc(&endiandata[19], foundNonce);
fresh_hash(vhash64, endiandata);
if (vhash64[7] <= Htarg && fulltest(vhash64, ptarget)) {
pdata[19] = foundNonce;
*hashes_done = foundNonce - first_nonce + 1;
return 1;
}
else if (vhash64[7] > Htarg) {
applog(LOG_INFO, "GPU #%d: result for %08x is not in range: %x > %x", thr_id, foundNonce, vhash64[7], Htarg);
}
else {
applog(LOG_INFO, "GPU #%d: result for %08x does not validate on CPU!", thr_id, foundNonce);
}
}
pdata[19] += throughput;
} while (pdata[19] < max_nonce && !work_restart[thr_id].restart);
*hashes_done = pdata[19] - first_nonce + 1;
return 0;
}