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Kernel: Heap implementation can now give free pages from all of RAM

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Bananymous
2023-04-14 23:23:31 +03:00
parent 0374b68fa1
commit bf0c7b9ae8
2 changed files with 74 additions and 24 deletions
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19
kernel/include/kernel/Memory/Heap.h
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@@ -22,12 +22,19 @@ namespace Kernel::Memory
paddr_t reserve_page();
void release_page(paddr_t);
paddr_t start() const { return m_start + m_list_pages * PAGE_SIZE; }
paddr_t end() const { return m_start + m_total_pages * PAGE_SIZE; }
uint64_t pages() const { return m_reservable_pages; }
paddr_t usable_start() const { return m_start + m_list_pages * PAGE_SIZE; }
paddr_t usable_end() const { return m_start + m_total_pages * PAGE_SIZE; }
uint64_t usable_pages() const { return m_reservable_pages; }
private:
paddr_t page_address(uint64_t) const;
struct node
{
node* next;
node* prev;
};
paddr_t page_address(const node*) const;
node* node_address(paddr_t) const;
private:
paddr_t m_start { 0 };
@@ -37,8 +44,8 @@ namespace Kernel::Memory
uint64_t m_reservable_pages { 0 };
uint64_t m_list_pages { 0 };
uint64_t* m_free_list { nullptr };
uint64_t* m_used_list { nullptr };
node* m_free_list { nullptr };
node* m_used_list { nullptr };
};
class Heap