106 lines
3.1 KiB
C++
106 lines
3.1 KiB
C++
/* XMRig
|
|
* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
|
|
* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
|
|
* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
|
|
* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
|
|
* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
|
|
* Copyright 2016-2017 XMRig <support@xmrig.com>
|
|
*
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
#include <stdlib.h>
|
|
#include <sys/mman.h>
|
|
|
|
|
|
#if defined(XMRIG_ARM) && !defined(__clang__)
|
|
# include "aligned_malloc.h"
|
|
#else
|
|
# include <mm_malloc.h>
|
|
#endif
|
|
|
|
|
|
#include "crypto/CryptoNight.h"
|
|
#include "log/Log.h"
|
|
#include "Mem.h"
|
|
#include "Options.h"
|
|
|
|
|
|
bool Mem::allocate(const Options* options)
|
|
{
|
|
m_algo = options->algo();
|
|
m_threads = options->threads();
|
|
m_doubleHash = options->doubleHash();
|
|
m_doubleHashThreadMask = options->doubleHashThreadMask();
|
|
m_memorySize = 0;
|
|
|
|
size_t scratchPadSize = m_algo == Options::ALGO_CRYPTONIGHT ? MEMORY : MEMORY_LITE;
|
|
for (int i=0; i < m_threads; i++) {
|
|
m_memorySize += sizeof(cryptonight_ctx);
|
|
|
|
if (isDoubleHash(i)) {
|
|
m_memorySize += scratchPadSize*2;
|
|
} else {
|
|
m_memorySize += scratchPadSize;
|
|
}
|
|
}
|
|
|
|
if (!options->hugePages()) {
|
|
m_memory = static_cast<uint8_t*>(_mm_malloc(m_memorySize, 16));
|
|
return true;
|
|
}
|
|
|
|
m_flags |= HugepagesAvailable;
|
|
|
|
# if defined(__APPLE__)
|
|
m_memory = static_cast<uint8_t*>(mmap(0, m_memorySize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, VM_FLAGS_SUPERPAGE_SIZE_2MB, 0));
|
|
# elif defined(__FreeBSD__)
|
|
m_memory = static_cast<uint8_t*>(mmap(0, m_memorySize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_ALIGNED_SUPER | MAP_PREFAULT_READ, -1, 0));
|
|
# else
|
|
m_memory = static_cast<uint8_t*>(mmap(0, m_memorySize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, 0, 0));
|
|
# endif
|
|
if (m_memory == MAP_FAILED) {
|
|
m_memory = static_cast<uint8_t*>(_mm_malloc(m_memorySize, 16));
|
|
return true;
|
|
}
|
|
|
|
m_flags |= HugepagesEnabled;
|
|
|
|
if (madvise(m_memory, m_memorySize, MADV_RANDOM | MADV_WILLNEED) != 0) {
|
|
LOG_ERR("madvise failed");
|
|
}
|
|
|
|
if (mlock(m_memory, m_memorySize) == 0) {
|
|
m_flags |= Lock;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void Mem::release()
|
|
{
|
|
if (m_flags & HugepagesEnabled) {
|
|
if (m_flags & Lock) {
|
|
munlock(m_memory, m_memorySize);
|
|
}
|
|
|
|
munmap(m_memory, m_memorySize);
|
|
}
|
|
else {
|
|
_mm_free(m_memory);
|
|
}
|
|
}
|