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.
102 lines
2.5 KiB
102 lines
2.5 KiB
9 years ago
|
/**
|
||
|
|
* bmw-256 MDT
|
||
|
|
* tpruvot - 2015
|
||
|
|
*/
|
||
|
|
extern "C" {
|
||
|
|
#include "sph/sph_bmw.h"
|
||
|
|
}
|
||
|
|
|
||
|
|
#include "miner.h"
|
||
|
|
|
||
|
|
#include "cuda_helper.h"
|
||
|
|
|
||
|
|
static uint32_t *d_hash[MAX_GPUS];
|
||
|
|
|
||
|
|
extern void bmw256_midstate_init(int thr_id, uint32_t threads);
|
||
|
|
extern void bmw256_setBlock_80(int thr_id, void *pdata);
|
||
|
|
extern void bmw256_cpu_hash_80(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_outputHash, int swap);
|
||
|
|
|
||
|
|
extern uint32_t cuda_check_hash_32(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_inputHash);
|
||
|
|
|
||
|
|
// CPU Hash
|
||
|
|
extern "C" void bmw_hash(void *state, const void *input)
|
||
|
|
{
|
||
|
|
uint32_t _ALIGN(64) hash[16];
|
||
|
|
sph_bmw256_context ctx;
|
||
|
|
|
||
|
|
sph_bmw256_init(&ctx);
|
||
|
|
sph_bmw256(&ctx, input, 80);
|
||
|
|
sph_bmw256_close(&ctx, (void*) hash);
|
||
|
|
|
||
|
|
memcpy(state, hash, 32);
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool init[MAX_GPUS] = { 0 };
|
||
|
|
|
||
|
|
static __inline uint32_t swab32_if(uint32_t val, bool iftrue) {
|
||
|
|
return iftrue ? swab32(val) : val;
|
||
|
|
}
|
||
|
|
|
||
|
|
extern "C" int scanhash_bmw(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];
|
||
|
|
bool swapnonce = true;
|
||
|
|
uint32_t throughput = device_intensity(thr_id, __func__, 1U << 21);
|
||
|
|
throughput = min(throughput, max_nonce - first_nonce);
|
||
|
|
|
||
|
|
if (opt_benchmark)
|
||
|
|
((uint32_t*)ptarget)[7] = 0x0005;
|
||
|
|
|
||
|
|
if (!init[thr_id]) {
|
||
|
|
cudaSetDevice(device_map[thr_id]);
|
||
|
|
|
||
|
|
cuda_check_cpu_init(thr_id, throughput);
|
||
|
|
bmw256_midstate_init(thr_id, throughput);
|
||
|
|
|
||
|
|
CUDA_SAFE_CALL(cudaMalloc(&d_hash[thr_id], (size_t)32 * throughput));
|
||
|
|
|
||
|
|
init[thr_id] = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
uint32_t endiandata[20];
|
||
|
|
for (int k=0; k < 20; k++) {
|
||
|
|
be32enc(&endiandata[k], ((uint32_t*)pdata)[k]);
|
||
|
|
}
|
||
|
|
|
||
|
|
bmw256_setBlock_80(thr_id, (void*)endiandata);
|
||
|
|
|
||
|
|
cuda_check_cpu_setTarget(ptarget);
|
||
|
|
|
||
|
|
do {
|
||
|
|
bmw256_cpu_hash_80(thr_id, (int) throughput, pdata[19], d_hash[thr_id], (int) swapnonce);
|
||
|
|
uint32_t foundNonce = cuda_check_hash_32(thr_id, throughput, pdata[19], d_hash[thr_id]);
|
||
|
|
if (foundNonce != UINT32_MAX)
|
||
|
|
{
|
||
|
|
uint32_t _ALIGN(64) vhash64[8];
|
||
|
|
endiandata[19] = swab32_if(foundNonce, swapnonce);
|
||
|
|
bmw_hash(vhash64, endiandata);
|
||
|
|
|
||
|
|
if (vhash64[7] <= ptarget[7] && fulltest(vhash64, ptarget)) {
|
||
|
|
*hashes_done = foundNonce - first_nonce + 1;
|
||
|
|
pdata[19] = swab32_if(foundNonce,!swapnonce);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
applog(LOG_DEBUG, "GPU #%d: result for nounce %08x does not validate on CPU!", 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;
|
||
|
|
return 0;
|
||
|
|
}
|