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KERNEL: Pre-kernel sets up the physical memory manager.

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* BUG: allocated blocks is possibly incorrect!
* prekernel no longer gets compiled as being in physical memory
This commit is contained in:
Nigel Barink
2022-09-03 01:00:17 +02:00
parent 01fcb0aa15
commit 656ca0baa8
9 changed files with 193 additions and 237 deletions
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22
source/kernel/memory/PhysicalMemoryManager.h
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@ -5,22 +5,14 @@
#include "../lib/mem.h"
#include "../bitmap.h"
// Asumming i386 for now!
#define BLOCK_SIZE 4092
#define IS_ALIGNED(addr, align) !((addr) & ~((align) - 1))
#define ALIGN(addr, align) (((addr) & ~((align) - 1 )) + (align))
struct PhysicalMemoryManagerInfoBlock
{
uint32_t* memoryBitMap;
uint32_t pmmap_size;
uint32_t max_blocks;
int used_blocks;
};
void SetupPhysicalMemoryManager(uint32_t mapAddress, uint32_t memorySize);
void SetupPhysicalMemoryManager(BootInfoBlock* memory);
void free_block(void* ptr);
void* allocate_block();
void allocate_region(uint32_t, uint32_t);
void deallocate_region(uint32_t , uint32_t );
void free_block(void* ptr);
void allocate_region(uint32_t address, uint32_t size);
void deallocate_region(uint32_t address, uint32_t size);
int GetUsedBlocks();