mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-25 03:36:02 +00:00
43 lines
1.7 KiB
C++
43 lines
1.7 KiB
C++
/*
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* Copyright (c) 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 <vapours.hpp>
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namespace ams::mmu::arch::arm {
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/* NOTE: mmu is not supported by libexosphere-on-arm. */
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/* However, we want the memory layout to be parseable, so we will include some arm64 mmu definitions. */
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constexpr inline u64 L1EntryShift = 30;
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constexpr inline u64 L2EntryShift = 21;
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constexpr inline u64 L3EntryShift = 12;
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constexpr inline u64 L1EntrySize = 1_GB;
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constexpr inline u64 L2EntrySize = 2_MB;
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constexpr inline u64 L3EntrySize = 4_KB;
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constexpr inline u64 PageSize = L3EntrySize;
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constexpr inline u64 L1EntryMask = ((static_cast<u64>(1) << (48 - L1EntryShift)) - 1) << L1EntryShift;
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constexpr inline u64 L2EntryMask = ((static_cast<u64>(1) << (48 - L2EntryShift)) - 1) << L2EntryShift;
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constexpr inline u64 L3EntryMask = ((static_cast<u64>(1) << (48 - L3EntryShift)) - 1) << L3EntryShift;
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constexpr inline u64 TableEntryMask = L3EntryMask;
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static_assert(L1EntryMask == 0x0000FFFFC0000000ul);
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static_assert(L2EntryMask == 0x0000FFFFFFE00000ul);
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static_assert(L3EntryMask == 0x0000FFFFFFFFF000ul);
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}
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