mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
/*
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* Copyright (c) 2019-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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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#pragma once
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#include "hvisor_cpu_sysreg_general.hpp"
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namespace ams::hvisor::cpu {
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static inline u64 MaskIrq()
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{
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u64 daif = THERMOSPHERE_GET_SYSREG(daif);
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THERMOSPHERE_SET_SYSREG_IMM(daifset, BIT(1));
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return daif;
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}
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static inline u64 UnmaskIrq()
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{
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u64 daif = THERMOSPHERE_GET_SYSREG(daif);
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THERMOSPHERE_SET_SYSREG_IMM(daifclr, BIT(1));
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return daif;
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}
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static inline void RestoreInterruptFlags(u64 flags)
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{
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THERMOSPHERE_SET_SYSREG(daif, flags);
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}
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class InterruptMaskGuard final {
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NON_COPYABLE(InterruptMaskGuard);
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NON_MOVEABLE(InterruptMaskGuard);
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private:
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u64 m_flags;
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public:
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ALWAYS_INLINE InterruptMaskGuard() : m_flags(MaskIrq()) {}
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ALWAYS_INLINE ~InterruptMaskGuard()
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{
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RestoreInterruptFlags(m_flags);
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}
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};
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}
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