KawPow WIP

2020-05-24 23:57:41 +02:00 · 2020-05-24 23:57:41 +02:00 · 22b937cc1c
commit 22b937cc1c
parent 07025dc41b
88 changed files with 11004 additions and 8383 deletions
--- a/src/crypto/kawpow/KPCache.h
+++ b/src/crypto/kawpow/KPCache.h
@ -0,0 +1,80 @@
+/* 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 2017-2019 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018      Lee Clagett <https://github.com/vtnerd>
+ * Copyright 2018-2019 tevador     <tevador@gmail.com>
+ * Copyright 2018-2020 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2019 XMRig       <https://github.com/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/>.
+ */
+
+#ifndef XMRIG_KP_CACHE_H
+#define XMRIG_KP_CACHE_H
+
+
+#include "base/tools/Object.h"
+#include <mutex>
+
+
+namespace xmrig
+{
+
+
+class VirtualMemory;
+
+
+class KPCache
+{
+public:
+    static constexpr size_t l1_cache_size = 16 * 1024;
+    static constexpr size_t l1_cache_num_items = l1_cache_size / sizeof(uint32_t);
+    static constexpr uint32_t num_dataset_parents = 512;
+
+    XMRIG_DISABLE_COPY_MOVE(KPCache)
+
+    KPCache();
+    ~KPCache();
+
+    bool init(uint32_t epoch);
+
+    void* data() const;
+    size_t size() const { return m_size; }
+    uint32_t epoch() const { return m_epoch; }
+
+    const uint32_t* l1_cache() const { return m_l1Cache; }
+
+    static uint64_t dag_size(uint32_t epoch);
+
+    static void calculate_fast_mod_data(uint32_t divisor, uint32_t &reciprocal, uint32_t &increment, uint32_t& shift);
+
+    static std::mutex s_cacheMutex;
+    static KPCache s_cache;
+
+private:
+    VirtualMemory* m_memory = nullptr;
+    size_t m_size = 0;
+    uint32_t m_epoch = 0xFFFFFFFFUL;
+    uint32_t m_l1Cache[l1_cache_num_items] = {};
+};
+
+
+} /* namespace xmrig */
+
+
+#endif /* XMRIG_KP_CACHE_H */