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82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
/* XMRig
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* Copyright 2010 Jeff Garzik <jgarzik@pobox.com>
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* Copyright 2012-2014 pooler <pooler@litecoinpool.org>
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* Copyright 2014 Lucas Jones <https://github.com/lucasjones>
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* Copyright 2014-2016 Wolf9466 <https://github.com/OhGodAPet>
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* Copyright 2016 Jay D Dee <jayddee246@gmail.com>
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* Copyright 2017-2018 XMR-Stak <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
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* Copyright 2018 Lee Clagett <https://github.com/vtnerd>
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* Copyright 2018-2019 SChernykh <https://github.com/SChernykh>
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* Copyright 2016-2019 XMRig <https://github.com/xmrig>, <support@xmrig.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <limits>
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#include "crypto/cn/CryptoNight.h"
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#include "crypto/common/portable/mm_malloc.h"
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#include "crypto/common/VirtualMemory.h"
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#include "Mem.h"
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bool Mem::m_enabled = true;
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int Mem::m_flags = 0;
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MemInfo Mem::create(cryptonight_ctx **ctx, const xmrig::Algorithm &algorithm, size_t count)
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{
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using namespace xmrig;
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constexpr CnAlgo<Algorithm::CN_0> props;
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MemInfo info;
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info.size = props.memory(algorithm.id()) * count;
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constexpr const size_t align_size = 2 * 1024 * 1024;
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info.size = ((info.size + align_size - 1) / align_size) * align_size;
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info.pages = info.size / align_size;
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allocate(info, m_enabled);
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for (size_t i = 0; i < count; ++i) {
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cryptonight_ctx *c = static_cast<cryptonight_ctx *>(_mm_malloc(sizeof(cryptonight_ctx), 4096));
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c->memory = info.memory + (i * props.memory(algorithm.id()));
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c->generated_code = reinterpret_cast<cn_mainloop_fun_ms_abi>(VirtualMemory::allocateExecutableMemory(0x4000));
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c->generated_code_data.algo = Algorithm::INVALID;
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c->generated_code_data.height = std::numeric_limits<uint64_t>::max();
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ctx[i] = c;
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}
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return info;
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}
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void Mem::release(cryptonight_ctx **ctx, size_t count, MemInfo &info)
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{
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if (info.memory == nullptr) {
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return;
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}
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release(info);
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for (size_t i = 0; i < count; ++i) {
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_mm_free(ctx[i]);
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}
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}
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