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Kernel: Rewrite physical memory allocation with PageTable::fast_pages

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Bananymous
2024-10-14 11:28:15 +03:00
parent 6a46a25f48
commit 55fbd09e45
3 changed files with 101 additions and 119 deletions
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24
kernel/include/kernel/Memory/PhysicalRange.h
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@@ -19,31 +19,17 @@ namespace Kernel
void release_contiguous_pages(paddr_t paddr, size_t pages);
paddr_t start() const { return m_paddr; }
paddr_t end() const { return m_paddr + m_size; }
bool contains(paddr_t addr) const { return m_paddr <= addr && addr < m_paddr + m_size; }
paddr_t end() const { return m_paddr + m_page_count * PAGE_SIZE; }
bool contains(paddr_t addr) const { return start() <= addr && addr < end(); }
size_t usable_memory() const { return m_data_pages * PAGE_SIZE; }
size_t usable_memory() const { return m_page_count * PAGE_SIZE; }
size_t used_pages() const { return m_data_pages - m_free_pages; }
size_t used_pages() const { return m_page_count - m_free_pages; }
size_t free_pages() const { return m_free_pages; }
private:
unsigned long long* ull_bitmap_ptr() { return (unsigned long long*)m_vaddr; }
const unsigned long long* ull_bitmap_ptr() const { return (const unsigned long long*)m_vaddr; }
paddr_t paddr_for_bit(unsigned long long) const;
unsigned long long bit_for_paddr(paddr_t paddr) const;
unsigned long long contiguous_bits_set(unsigned long long start, unsigned long long count) const;
private:
const paddr_t m_paddr { 0 };
const size_t m_size { 0 };
vaddr_t m_vaddr { 0 };
const size_t m_bitmap_pages { 0 };
const size_t m_data_pages { 0 };
const size_t m_page_count { 0 };
size_t m_free_pages { 0 };
};