88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
/* XMRig
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* Copyright (c) 2018-2021 SChernykh <https://github.com/SChernykh>
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* Copyright (c) 2016-2021 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 "hw/msr/Msr.h"
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#include "base/io/log/Log.h"
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namespace xmrig {
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static const char *kTag = YELLOW_BG_BOLD(WHITE_BOLD_S " msr ");
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static std::weak_ptr<Msr> instance;
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} // namespace xmrig
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const char *xmrig::Msr::tag()
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{
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return kTag;
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}
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std::shared_ptr<xmrig::Msr> xmrig::Msr::get()
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{
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auto msr = instance.lock();
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if (!msr) {
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msr = std::make_shared<Msr>();
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instance = msr;
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}
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if (msr->isAvailable()) {
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return msr;
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}
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return {};
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}
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bool xmrig::Msr::write(uint32_t reg, uint64_t value, int32_t cpu, uint64_t mask, bool verbose)
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{
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if (mask != MsrItem::kNoMask) {
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uint64_t old_value;
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if (rdmsr(reg, cpu, old_value)) {
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value = MsrItem::maskedValue(old_value, value, mask);
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}
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}
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const bool result = wrmsr(reg, value, cpu);
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if (!result && verbose) {
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LOG_WARN("%s " YELLOW_BOLD("cannot set MSR 0x%08" PRIx32 " to 0x%016" PRIx64), tag(), reg, value);
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}
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return result;
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}
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xmrig::MsrItem xmrig::Msr::read(uint32_t reg, int32_t cpu, bool verbose) const
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{
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uint64_t value = 0;
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if (rdmsr(reg, cpu, value)) {
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return { reg, value };
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}
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if (verbose) {
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LOG_WARN("%s " YELLOW_BOLD("cannot read MSR 0x%08" PRIx32), tag(), reg);
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}
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return {};
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}
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