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Kernel: Heap allows us to take free pages.

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The API is kinda weird and will probably be reworked in near future
but this will work for now :)
This commit is contained in:
Bananymous
2023-04-18 10:16:09 +03:00
parent 295a27f16a
commit 96ac072166
2 changed files with 37 additions and 6 deletions
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11
kernel/include/kernel/Memory/Heap.h
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@@ -22,9 +22,11 @@ namespace Kernel::Memory
paddr_t reserve_page();
void release_page(paddr_t);
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; }
paddr_t start() const { return m_start; }
paddr_t end() const { return m_start + m_size; }
bool contains(paddr_t addr) const { return m_start <= addr && addr < m_start + m_size; }
size_t usable_memory() const { return m_reservable_pages * PAGE_SIZE; }
private:
struct node
@@ -57,6 +59,9 @@ namespace Kernel::Memory
static void initialize();
static Heap& get();
paddr_t take_mapped_page(uint8_t);
void return_mapped_page(paddr_t);
private:
Heap() = default;
void initialize_impl();