89 lines
2.7 KiB
C++
89 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 2017-2019 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 tevador <tevador@gmail.com>
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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 "crypto/rx/RxCache.h"
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#include "crypto/common/VirtualMemory.h"
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#include "crypto/randomx/randomx.h"
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static_assert(RANDOMX_FLAG_JIT == 8, "RANDOMX_FLAG_JIT flag mismatch");
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static_assert(RANDOMX_FLAG_LARGE_PAGES == 1, "RANDOMX_FLAG_LARGE_PAGES flag mismatch");
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xmrig::RxCache::RxCache(bool hugePages)
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{
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if (hugePages) {
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m_flags = RANDOMX_FLAG_JIT | RANDOMX_FLAG_LARGE_PAGES;
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m_cache = randomx_alloc_cache(static_cast<randomx_flags>(m_flags));
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}
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if (!m_cache) {
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m_flags = RANDOMX_FLAG_JIT;
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m_cache = randomx_alloc_cache(static_cast<randomx_flags>(m_flags));
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}
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if (!m_cache) {
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m_flags = RANDOMX_FLAG_DEFAULT;
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m_cache = randomx_alloc_cache(static_cast<randomx_flags>(m_flags));
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}
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}
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xmrig::RxCache::~RxCache()
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{
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if (m_cache) {
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randomx_release_cache(m_cache);
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}
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}
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bool xmrig::RxCache::init(const Buffer &seed)
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{
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if (m_seed == seed) {
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return false;
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}
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m_seed = seed;
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randomx_init_cache(m_cache, m_seed.data(), m_seed.size());
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return true;
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}
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std::pair<uint32_t, uint32_t> xmrig::RxCache::hugePages() const
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{
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constexpr size_t twoMiB = 2u * 1024u * 1024u;
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constexpr size_t total = VirtualMemory::align(maxSize(), twoMiB) / twoMiB;
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uint32_t count = 0;
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if (isHugePages()) {
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count += total;
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}
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return { count, total };
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}
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