mirror of https://github.com/GOSTSec/ccminer
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
104 lines
2.2 KiB
104 lines
2.2 KiB
10 years ago
|
/*
|
||
|
|
* Keccak 256
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
extern "C"
|
||
|
|
{
|
||
|
|
#include "sph/sph_shavite.h"
|
||
|
|
#include "sph/sph_simd.h"
|
||
|
|
#include "sph/sph_keccak.h"
|
||
|
|
|
||
|
|
#include "miner.h"
|
||
|
|
}
|
||
|
|
|
||
|
|
#include "cuda_helper.h"
|
||
|
|
|
||
|
|
// in cpu-miner.c
|
||
|
|
extern int device_map[8];
|
||
|
|
|
||
|
|
static uint32_t *d_hash[8];
|
||
|
|
|
||
|
|
extern void keccak256_cpu_init(int thr_id, int threads);
|
||
|
|
extern void keccak256_setBlock_80(void *pdata,const void *ptarget);
|
||
|
|
extern uint32_t keccak256_cpu_hash_80(int thr_id, int threads, uint32_t startNounce, uint32_t *d_hash, int order);
|
||
|
|
|
||
|
|
// CPU Hash
|
||
|
|
extern "C" void keccak256_hash(void *state, const void *input)
|
||
|
|
{
|
||
|
|
sph_keccak_context ctx_keccak;
|
||
|
|
|
||
|
|
uint32_t hash[16];
|
||
|
|
|
||
|
|
sph_keccak256_init(&ctx_keccak);
|
||
|
|
sph_keccak256 (&ctx_keccak, input, 80);
|
||
|
|
sph_keccak256_close(&ctx_keccak, (void*) hash);
|
||
|
|
|
||
|
|
memcpy(state, hash, 32);
|
||
|
|
}
|
||
|
|
|
||
|
|
extern "C" int scanhash_keccak256(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];
|
||
|
|
|
||
|
|
if (opt_benchmark)
|
||
|
|
((uint32_t*)ptarget)[7] = 0x000f;
|
||
|
|
|
||
|
|
const uint32_t Htarg = ptarget[7];
|
||
|
|
|
||
|
|
const int throughput = 256*256*8*8;
|
||
|
|
|
||
|
|
static bool init[8] = {0,0,0,0,0,0,0,0};
|
||
|
|
if (!init[thr_id]) {
|
||
|
|
cudaSetDevice(device_map[thr_id]);
|
||
|
|
|
||
|
|
CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], 16 * sizeof(uint32_t) * throughput));
|
||
|
|
keccak256_cpu_init(thr_id, throughput);
|
||
|
|
|
||
|
|
init[thr_id] = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
uint32_t endiandata[20];
|
||
|
|
for (int k=0; k < 20; k++) {
|
||
|
|
be32enc(&endiandata[k], ((uint32_t*)pdata)[k]);
|
||
|
|
}
|
||
|
|
|
||
|
|
keccak256_setBlock_80((void*)endiandata, ptarget);
|
||
|
|
do {
|
||
|
|
int order = 0;
|
||
|
|
|
||
|
|
uint32_t foundNonce = keccak256_cpu_hash_80(thr_id, throughput, pdata[19], d_hash[thr_id], order++);
|
||
|
|
if (foundNonce != 0xffffffff)
|
||
|
|
{
|
||
|
|
|
||
|
|
uint32_t vhash64[8];
|
||
|
|
be32enc(&endiandata[19], foundNonce);
|
||
|
|
|
||
|
|
keccak256_hash(vhash64, endiandata);
|
||
|
|
|
||
|
|
if (vhash64[7] <= Htarg && fulltest(vhash64, ptarget)) {
|
||
|
|
|
||
|
|
pdata[19] = foundNonce;
|
||
|
|
*hashes_done = foundNonce - first_nonce + 1;
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
applog(LOG_DEBUG, "GPU #%d: result for nounce %08x does not validate on CPU!", thr_id, foundNonce);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((uint64_t) pdata[19] + throughput > (uint64_t) 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;
|
||
|
|
}
|