9ae0eeeb87
- In commit b3facaa6bb, the copyright header was
updated to include "Citron Homebrew Project" across multiple files, regardless
of whether any contributions were made.
- This commit removes the incorrect attribution and reverts the copyright header
to its previous state.
- Copyright attribution should only be added when meaningful contributions have
been made to the file.
- This commit ensures proper compliance with copyright standards and maintains
correct attribution to the respective contributors.
- Special thanks to Tachi for pointing out the need for these corrections and
ensuring that proper attribution practices are followed.
98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <atomic>
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#include <mutex>
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#include <set>
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#include <shared_mutex>
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#include "common/host_memory.h"
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#include "common/intrusive_red_black_tree.h"
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namespace Common {
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struct SeparateHeapMap {
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Common::IntrusiveRedBlackTreeNode addr_node{};
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Common::IntrusiveRedBlackTreeNode tick_node{};
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VAddr vaddr{};
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PAddr paddr{};
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size_t size{};
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size_t tick{};
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MemoryPermission perm{};
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bool is_resident{};
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};
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struct SeparateHeapMapAddrComparator {
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static constexpr int Compare(const SeparateHeapMap& lhs, const SeparateHeapMap& rhs) {
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if (lhs.vaddr < rhs.vaddr) {
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return -1;
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} else if (lhs.vaddr <= (rhs.vaddr + rhs.size - 1)) {
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return 0;
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} else {
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return 1;
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}
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}
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};
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struct SeparateHeapMapTickComparator {
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static constexpr int Compare(const SeparateHeapMap& lhs, const SeparateHeapMap& rhs) {
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if (lhs.tick < rhs.tick) {
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return -1;
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} else if (lhs.tick > rhs.tick) {
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return 1;
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} else {
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return SeparateHeapMapAddrComparator::Compare(lhs, rhs);
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}
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}
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};
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class HeapTracker {
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public:
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explicit HeapTracker(Common::HostMemory& buffer);
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~HeapTracker();
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void Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perm,
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bool is_separate_heap);
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void Unmap(size_t virtual_offset, size_t size, bool is_separate_heap);
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void Protect(size_t virtual_offset, size_t length, MemoryPermission perm);
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u8* VirtualBasePointer() {
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return m_buffer.VirtualBasePointer();
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}
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bool DeferredMapSeparateHeap(u8* fault_address);
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bool DeferredMapSeparateHeap(size_t virtual_offset);
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private:
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using AddrTreeTraits =
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Common::IntrusiveRedBlackTreeMemberTraitsDeferredAssert<&SeparateHeapMap::addr_node>;
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using AddrTree = AddrTreeTraits::TreeType<SeparateHeapMapAddrComparator>;
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using TickTreeTraits =
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Common::IntrusiveRedBlackTreeMemberTraitsDeferredAssert<&SeparateHeapMap::tick_node>;
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using TickTree = TickTreeTraits::TreeType<SeparateHeapMapTickComparator>;
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AddrTree m_mappings{};
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TickTree m_resident_mappings{};
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private:
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void SplitHeapMap(VAddr offset, size_t size);
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void SplitHeapMapLocked(VAddr offset);
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AddrTree::iterator GetNearestHeapMapLocked(VAddr offset);
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void RebuildSeparateHeapAddressSpace();
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private:
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Common::HostMemory& m_buffer;
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const s64 m_max_resident_map_count;
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std::shared_mutex m_rebuild_lock{};
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std::mutex m_lock{};
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s64 m_map_count{};
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s64 m_resident_map_count{};
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size_t m_tick{};
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};
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} // namespace Common
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