mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-15 01:01:26 +01:00
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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/>.
|
|
*/
|
|
#pragma once
|
|
#include <mesosphere/kern_common.hpp>
|
|
#include <mesosphere/kern_select_cpu.hpp>
|
|
|
|
namespace ams::kern {
|
|
|
|
class KAffinityMask {
|
|
private:
|
|
static constexpr u64 AllowedAffinityMask = (1ul << cpu::NumCores) - 1;
|
|
private:
|
|
u64 m_mask;
|
|
private:
|
|
static constexpr ALWAYS_INLINE u64 GetCoreBit(s32 core) {
|
|
MESOSPHERE_ASSERT(0 <= core && core < static_cast<s32>(cpu::NumCores));
|
|
return (1ul << core);
|
|
}
|
|
public:
|
|
constexpr ALWAYS_INLINE KAffinityMask() : m_mask(0) { MESOSPHERE_ASSERT_THIS(); }
|
|
|
|
constexpr ALWAYS_INLINE u64 GetAffinityMask() const { return m_mask; }
|
|
|
|
constexpr ALWAYS_INLINE void SetAffinityMask(u64 new_mask) {
|
|
MESOSPHERE_ASSERT((new_mask & ~AllowedAffinityMask) == 0);
|
|
m_mask = new_mask;
|
|
}
|
|
|
|
constexpr ALWAYS_INLINE bool GetAffinity(s32 core) const {
|
|
return m_mask & GetCoreBit(core);
|
|
}
|
|
|
|
constexpr ALWAYS_INLINE void SetAffinity(s32 core, bool set) {
|
|
MESOSPHERE_ASSERT(0 <= core && core < static_cast<s32>(cpu::NumCores));
|
|
|
|
if (set) {
|
|
m_mask |= GetCoreBit(core);
|
|
} else {
|
|
m_mask &= ~GetCoreBit(core);
|
|
}
|
|
}
|
|
|
|
constexpr ALWAYS_INLINE void SetAll() {
|
|
m_mask = AllowedAffinityMask;
|
|
}
|
|
};
|
|
|
|
}
|