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// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include "common/assert.h"
#include "common/common_types.h"
#include "core/hardware_properties.h"
namespace Kernel {
class KAffinityMask {
public:
constexpr KAffinityMask() = default;
[[nodiscard]] constexpr u64 GetAffinityMask() const {
return this->mask;
}
constexpr void SetAffinityMask(u64 new_mask) {
ASSERT((new_mask & ~AllowedAffinityMask) == 0);
this->mask = new_mask;
}
[[nodiscard]] constexpr bool GetAffinity(s32 core) const {
return (this->mask & GetCoreBit(core)) != 0;
}
constexpr void SetAffinity(s32 core, bool set) {
if (set) {
this->mask |= GetCoreBit(core);
} else {
this->mask &= ~GetCoreBit(core);
}
}
constexpr void SetAll() {
this->mask = AllowedAffinityMask;
}
private:
[[nodiscard]] static constexpr u64 GetCoreBit(s32 core) {
ASSERT(0 <= core && core < static_cast<s32>(Core::Hardware::NUM_CPU_CORES));
return (1ULL << core);
}
static constexpr u64 AllowedAffinityMask = (1ULL << Core::Hardware::NUM_CPU_CORES) - 1;
u64 mask{};
};
} // namespace Kernel
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