99ceb03a1c
This formats all copyright comments according to SPDX formatting guidelines. Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
108 lines
4.4 KiB
C++
108 lines
4.4 KiB
C++
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <array>
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#include "common/assert.h"
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#include "common/literals.h"
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#include "core/hle/kernel/k_address_space_info.h"
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namespace Kernel {
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namespace {
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using namespace Common::Literals;
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constexpr u64 Size_Invalid = UINT64_MAX;
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// clang-format off
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constexpr std::array<KAddressSpaceInfo, 13> AddressSpaceInfos{{
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{ .bit_width = 32, .address = 2_MiB , .size = 1_GiB - 2_MiB , .type = KAddressSpaceInfo::Type::MapSmall, },
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{ .bit_width = 32, .address = 1_GiB , .size = 4_GiB - 1_GiB , .type = KAddressSpaceInfo::Type::MapLarge, },
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{ .bit_width = 32, .address = Size_Invalid, .size = 1_GiB , .type = KAddressSpaceInfo::Type::Alias, },
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{ .bit_width = 32, .address = Size_Invalid, .size = 1_GiB , .type = KAddressSpaceInfo::Type::Heap, },
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{ .bit_width = 36, .address = 128_MiB , .size = 2_GiB - 128_MiB, .type = KAddressSpaceInfo::Type::MapSmall, },
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{ .bit_width = 36, .address = 2_GiB , .size = 64_GiB - 2_GiB , .type = KAddressSpaceInfo::Type::MapLarge, },
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{ .bit_width = 36, .address = Size_Invalid, .size = 6_GiB , .type = KAddressSpaceInfo::Type::Heap, },
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{ .bit_width = 36, .address = Size_Invalid, .size = 6_GiB , .type = KAddressSpaceInfo::Type::Alias, },
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{ .bit_width = 39, .address = 128_MiB , .size = 512_GiB - 128_MiB, .type = KAddressSpaceInfo::Type::Map39Bit, },
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{ .bit_width = 39, .address = Size_Invalid, .size = 64_GiB , .type = KAddressSpaceInfo::Type::MapSmall },
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{ .bit_width = 39, .address = Size_Invalid, .size = 6_GiB , .type = KAddressSpaceInfo::Type::Heap, },
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{ .bit_width = 39, .address = Size_Invalid, .size = 64_GiB , .type = KAddressSpaceInfo::Type::Alias, },
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{ .bit_width = 39, .address = Size_Invalid, .size = 2_GiB , .type = KAddressSpaceInfo::Type::Stack, },
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}};
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// clang-format on
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constexpr bool IsAllowedIndexForAddress(std::size_t index) {
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return index < AddressSpaceInfos.size() && AddressSpaceInfos[index].address != Size_Invalid;
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}
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using IndexArray =
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std::array<std::size_t, static_cast<std::size_t>(KAddressSpaceInfo::Type::Count)>;
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constexpr IndexArray AddressSpaceIndices32Bit{
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0, 1, 0, 2, 0, 3,
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};
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constexpr IndexArray AddressSpaceIndices36Bit{
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4, 5, 4, 6, 4, 7,
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};
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constexpr IndexArray AddressSpaceIndices39Bit{
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9, 8, 8, 10, 12, 11,
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};
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constexpr bool IsAllowed32BitType(KAddressSpaceInfo::Type type) {
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return type < KAddressSpaceInfo::Type::Count && type != KAddressSpaceInfo::Type::Map39Bit &&
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type != KAddressSpaceInfo::Type::Stack;
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}
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constexpr bool IsAllowed36BitType(KAddressSpaceInfo::Type type) {
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return type < KAddressSpaceInfo::Type::Count && type != KAddressSpaceInfo::Type::Map39Bit &&
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type != KAddressSpaceInfo::Type::Stack;
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}
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constexpr bool IsAllowed39BitType(KAddressSpaceInfo::Type type) {
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return type < KAddressSpaceInfo::Type::Count && type != KAddressSpaceInfo::Type::MapLarge;
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}
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} // namespace
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u64 KAddressSpaceInfo::GetAddressSpaceStart(std::size_t width, Type type) {
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const std::size_t index{static_cast<std::size_t>(type)};
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switch (width) {
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case 32:
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ASSERT(IsAllowed32BitType(type));
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ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices32Bit[index]));
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return AddressSpaceInfos[AddressSpaceIndices32Bit[index]].address;
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case 36:
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ASSERT(IsAllowed36BitType(type));
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ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices36Bit[index]));
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return AddressSpaceInfos[AddressSpaceIndices36Bit[index]].address;
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case 39:
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ASSERT(IsAllowed39BitType(type));
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ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices39Bit[index]));
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return AddressSpaceInfos[AddressSpaceIndices39Bit[index]].address;
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}
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UNREACHABLE();
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return 0;
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}
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std::size_t KAddressSpaceInfo::GetAddressSpaceSize(std::size_t width, Type type) {
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const std::size_t index{static_cast<std::size_t>(type)};
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switch (width) {
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case 32:
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ASSERT(IsAllowed32BitType(type));
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return AddressSpaceInfos[AddressSpaceIndices32Bit[index]].size;
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case 36:
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ASSERT(IsAllowed36BitType(type));
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return AddressSpaceInfos[AddressSpaceIndices36Bit[index]].size;
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case 39:
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ASSERT(IsAllowed39BitType(type));
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return AddressSpaceInfos[AddressSpaceIndices39Bit[index]].size;
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}
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UNREACHABLE();
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return 0;
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}
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} // namespace Kernel
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