pmmngr.h File Reference

#include <aurora.h>

Include dependency graph for pmmngr.h:

Go to the source code of this file.

Classes
struct	_au_pmm_stats_
struct	_au_page_desc_

Macros
#define	AURORA_PAGE_KERNEL   (1ULL<<0)
#define	AURORA_PAGE_SHM   (1ULL<<1)
#define	AURORA_PAGE_DMA   (1ULL<<2)
#define	AURORA_PAGE_NORMAL   (1ULL << 3)
#define	PMM_INVALID_PHYS   UINT64_MAX
#define	AuPmmngrAllocPage(type)   ((uint64_t)AuPmmngrAlloc())
#define	AuPmmngrAllocPages(pages, alignment, ceiling, type)    ((uint64_t)AuPmmngrAllocBlocks((int)(pages)))
#define	AuPmmngrReleasePage(physaddr)    (AuPmmngrFree((void*)(uint64_t)(physaddr)), true)

Typedefs
typedef struct _au_pmm_stats_	AuPmmStats
typedef struct _au_page_desc_	AuPageDesc

Functions
void	AuPmmngrInitialize (KERNEL_BOOT_INFO *info)
AU_EXTERN AU_EXPORT void *	AuPmmngrAlloc ()
AU_EXTERN AU_EXPORT void *	AuPmmngrAllocBlocks (int num)
AU_EXTERN AU_EXPORT void	AuPmmngrFree (void *Address)
AU_EXTERN AU_EXPORT void	AuPmmngrFreeBlocks (void *Addr, int Count)
uint64_t	AuPmmngrGetFreeMem ()
uint64_t	AuPmmngrGetUsedMem ()
uint64_t	AuPmmngrGetTotalMem ()
void	AuPmmngrAddRefcount (uint64_t physaddr, uint16_t count)
uint16_t	AuPmmngrGetRefcount (uint64_t physaddr)
AuPageDesc *	AuPmmngrGetPageDesc (uint64_t physaddr)
void	AuPmmngrSetPageType (uint64_t physaddr, uint8_t flags)
AU_EXTERN AU_EXPORT uint64_t	P2V (uint64_t addr)
	P2V – Physical to Virtual conversion.
AU_EXTERN AU_EXPORT uint64_t	V2P (uint64_t vaddr)
	V2P – Virtual to Physical conversion.
void	AuPmmngrMoveHigher ()
	AuPmmngrMoveHigher – moves the kernel to higher half of memory.

Detailed Description

BSD 2-Clause License

Copyright (c) 2022, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Macro Definition Documentation

AuPmmngrAllocPage

#define AuPmmngrAllocPage

(

type

)

((uint64_t)AuPmmngrAlloc())

AuPmmngrAllocPages

#define AuPmmngrAllocPages	(		pages,
			alignment,
			ceiling,
			type
	)		((uint64_t)AuPmmngrAllocBlocks((int)(pages)))

AuPmmngrReleasePage

#define AuPmmngrReleasePage

(

physaddr

)

(AuPmmngrFree((void*)(uint64_t)(physaddr)), true)

AURORA_PAGE_DMA

#define AURORA_PAGE_DMA   (1ULL<<2)

AURORA_PAGE_KERNEL

#define AURORA_PAGE_KERNEL   (1ULL<<0)

AURORA_PAGE_NORMAL

#define AURORA_PAGE_NORMAL   (1ULL << 3)

AURORA_PAGE_SHM

#define AURORA_PAGE_SHM   (1ULL<<1)

PMM_INVALID_PHYS

#define PMM_INVALID_PHYS   UINT64_MAX

Typedef Documentation

AuPageDesc

typedef struct _au_page_desc_ AuPageDesc

AuPmmStats

typedef struct _au_pmm_stats_ AuPmmStats

Function Documentation

AuPmmngrAddRefcount()

void AuPmmngrAddRefcount ( uint64_t  physaddr, uint16_t  count  )

extern

AuPmmngrAlloc()

AU_EXTERN AU_EXPORT void * AuPmmngrAlloc

(

)

AuPmmngrAllocBlocks()

AU_EXTERN AU_EXPORT void * AuPmmngrAllocBlocks

(

int

num

)

AuPmmngrFree()

AU_EXTERN AU_EXPORT void AuPmmngrFree

(

void *

Address

)

AuPmmngrFreeBlocks()

AU_EXTERN AU_EXPORT void AuPmmngrFreeBlocks	(	void *	Addr,
		int	Count
	)

AuPmmngrGetFreeMem()

uint64_t AuPmmngrGetFreeMem ( )

extern

AuPmmngrGetPageDesc()

AuPageDesc * AuPmmngrGetPageDesc ( uint64_t  physaddr )

extern

AuPmmngrGetRefcount()

uint16_t AuPmmngrGetRefcount ( uint64_t  physaddr )

extern

AuPmmngrGetTotalMem()

uint64_t AuPmmngrGetTotalMem ( )

extern

AuPmmngrGetUsedMem()

uint64_t AuPmmngrGetUsedMem ( )

extern

AuPmmngrInitialize()

void AuPmmngrInitialize ( KERNEL_BOOT_INFO *  info )

extern

AuPmmngrMoveHigher()

void AuPmmngrMoveHigher ( )

extern

AuPmmngrMoveHigher – moves the kernel to higher half of memory.

AuPmmngrSetPageType()

void AuPmmngrSetPageType ( uint64_t  physaddr, uint8_t  flags  )

extern

P2V()

AU_EXTERN AU_EXPORT uint64_t P2V

(

uint64_t

addr

)

P2V – Physical to Virtual conversion.

Parameters

addr	– Address to convert

V2P()

AU_EXTERN AU_EXPORT uint64_t V2P

(

uint64_t

vaddr

)

V2P – Virtual to Physical conversion.

Parameters

vaddr

– Address to convert