priv_phys_mem_manager.h File Reference

#include "types.h"

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Macros
#define	PAGE_SIZE   KB(4)
#define	MAX_ALLOCS_PERENTRY   ((PAGE_SIZE / sizeof(PhysAllocInfoEntry)) - 1)
#define	KB4_DIVISOR   5
#define	KB4_MAX_VAL   32
#define	KB4_MAX_VAL_L   6
#define	KB4_MAX_VAL_MASK   (0xFFFFFFFF >> (32 - KB4_MAX_VAL_L))
#define	I_OFF(i)   ((i % KB4_DIVISOR) * KB4_MAX_VAL_L)
#define	SET_FREE_BITCOUNT(i, val)
#define	GET_FREE_BITCOUNT(i)
#define	DEC_FREE_BITCOUNT(i)   (SET_FREE_BITCOUNT(i, (GET_FREE_BITCOUNT(i) - 1)))
#define	INC_FREE_BITCOUNT(i)   (SET_FREE_BITCOUNT(i, (GET_FREE_BITCOUNT(i) + 1)))

Functions
void	MemMan_Initialize ()
void *	MemMan_Alloc (uint64_t size)
void	MemMan_Free (void *ptr, uint64_t size)
uint64_t	MemMan_CalculateBitmapIndex (uint64_t addr, size_t blockSize)
void	MemMan_MarkUsed (uint64_t addr, uint64_t size)
void	MemMan_MarkKB4Used (uint64_t addr, uint64_t size)

Variables
uint64_t	memory_size
uint64_t	page_count
uint32_t *	KB4_Blocks_Bitmap
uint32_t *	KB4_Blocks_FreeBitCount
uint64_t	KB4_Blocks_Count
uint64_t	KB4_Blocks_FreeBitCount_EntryNum
uint8_t *	MB2_Blocks_Bitmap
uint32_t	MB2_Blocks_Count
uint64_t	freePageCount
uint64_t	totalPageCount
uint64_t	lastNonFullPage

Macro Definition Documentation

#define DEC_FREE_BITCOUNT

(

i

)

(SET_FREE_BITCOUNT(i, (GET_FREE_BITCOUNT(i) - 1)))

#define GET_FREE_BITCOUNT

(

i

)

Value:

((KB4_Blocks_FreeBitCount[(i) / KB4_DIVISOR] >> I_OFF((i))) &                \
   KB4_MAX_VAL_MASK)

#define I_OFF

(

i

)

((i % KB4_DIVISOR) * KB4_MAX_VAL_L)

#define INC_FREE_BITCOUNT

(

i

)

(SET_FREE_BITCOUNT(i, (GET_FREE_BITCOUNT(i) + 1)))

#define KB4_DIVISOR   5

#define KB4_MAX_VAL   32

#define KB4_MAX_VAL_L   6

#define KB4_MAX_VAL_MASK   (0xFFFFFFFF >> (32 - KB4_MAX_VAL_L))

#define MAX_ALLOCS_PERENTRY   ((PAGE_SIZE / sizeof(PhysAllocInfoEntry)) - 1)

#define PAGE_SIZE   KB(4)

#define SET_FREE_BITCOUNT	(		i,
			val
	)

Value:

(KB4_Blocks_FreeBitCount[(i) / KB4_DIVISOR] =                                \
       (KB4_Blocks_FreeBitCount[(i) / KB4_DIVISOR] &                           \
        ~(KB4_MAX_VAL_MASK << I_OFF((i)))) |                                   \
       (((val)&KB4_MAX_VAL_MASK) << I_OFF((i))))

Function Documentation

void* MemMan_Alloc

(

uint64_t

size

)

uint64_t MemMan_CalculateBitmapIndex	(	uint64_t	addr,
		size_t	blockSize
	)

void MemMan_Free	(	void *	ptr,
		uint64_t	size
	)

void MemMan_Initialize

(

)

void MemMan_MarkKB4Used	(	uint64_t	addr,
		uint64_t	size
	)

void MemMan_MarkUsed	(	uint64_t	addr,
		uint64_t	size
	)

Variable Documentation

uint64_t freePageCount

uint32_t* KB4_Blocks_Bitmap

uint64_t KB4_Blocks_Count

uint32_t * KB4_Blocks_FreeBitCount

uint64_t KB4_Blocks_FreeBitCount_EntryNum

uint64_t lastNonFullPage

uint8_t* MB2_Blocks_Bitmap

uint32_t MB2_Blocks_Count

uint64_t memory_size

uint64_t page_count

uint64_t totalPageCount