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Atmosphere/libraries/libmesosphere/include/mesosphere/kern_select_cpu.hpp

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1.9 KiB
C++

/*
* Copyright (c) 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>
#ifdef ATMOSPHERE_ARCH_ARM64
#include <mesosphere/arch/arm64/kern_cpu.hpp>
namespace ams::kern::cpu {
using namespace ams::kern::arch::arm64::cpu;
}
#else
#error "Unknown architecture for CPU"
#endif
#ifdef ATMOSPHERE_BOARD_NINTENDO_NX
#include <mesosphere/board/nintendo/nx/kern_cpu_map.hpp>
namespace ams::kern::cpu {
using namespace ams::kern::board::nintendo::nx::impl::cpu;
}
#elif defined(ATMOSPHERE_BOARD_QEMU_VIRT)
#include <mesosphere/board/qemu/virt/kern_cpu_map.hpp>
namespace ams::kern::cpu {
using namespace ams::kern::board::qemu::virt::impl::cpu;
}
#else
#error "Unknown board for CPU Map"
#endif
namespace ams::kern {
namespace cpu {
static constexpr inline size_t NumVirtualCores = BITSIZEOF(u64);
static constexpr inline u64 VirtualCoreMask = [] {
u64 mask = 0;
for (size_t i = 0; i < NumVirtualCores; ++i) {
mask |= (UINT64_C(1) << i);
}
return mask;
}();
}
static_assert(cpu::NumCores <= cpu::NumVirtualCores);
static_assert(util::size(cpu::VirtualToPhysicalCoreMap) == cpu::NumVirtualCores);
}