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// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <atomic>
#include "core/hle/kernel/k_dynamic_resource_manager.h"
#include "core/hle/kernel/k_page_table_slab_heap.h"
#include "core/hle/kernel/k_typed_address.h"
namespace Kernel {
class KPageTableManager : public KDynamicResourceManager<impl::PageTablePage, true> {
public:
using RefCount = KPageTableSlabHeap::RefCount;
static constexpr size_t PageTableSize = KPageTableSlabHeap::PageTableSize;
public:
KPageTableManager() = default;
void Initialize(KDynamicPageManager* page_allocator, KPageTableSlabHeap* pt_heap) {
m_pt_heap = pt_heap;
static_assert(std::derived_from<KPageTableSlabHeap, DynamicSlabType>);
BaseHeap::Initialize(page_allocator, pt_heap);
}
KVirtualAddress Allocate() {
return KVirtualAddress(BaseHeap::Allocate());
}
RefCount GetRefCount(KVirtualAddress addr) const {
return m_pt_heap->GetRefCount(addr);
}
void Open(KVirtualAddress addr, int count) {
return m_pt_heap->Open(addr, count);
}
bool Close(KVirtualAddress addr, int count) {
return m_pt_heap->Close(addr, count);
}
bool IsInPageTableHeap(KVirtualAddress addr) const {
return m_pt_heap->IsInRange(addr);
}
private:
using BaseHeap = KDynamicResourceManager<impl::PageTablePage, true>;
KPageTableSlabHeap* m_pt_heap{};
};
} // namespace Kernel
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