#include "los_typedef.h"
#include "los_errno.h"

los_dynshm.h 的引用(Include)关系图:

结构体
struct	PageTableConfig

struct	SysPageTable

struct	DynShmRegion

struct	DynShmBulkMem

struct	DynShmConfig

宏定义
#define	LOS_ERRNO_DYN_SHM_NO_MEMORY LOS_ERRNO_OS_ERROR(LOS_MOD_DYN_SHM, 0x00)

#define	LOS_ERRNO_DYN_SHM_INPUT_INVALID LOS_ERRNO_OS_ERROR(LOS_MOD_DYN_SHM, 0x01)

#define	LOS_ERRNO_DYN_SHM_INIT_FAILED LOS_ERRNO_OS_ERROR(LOS_MOD_DYN_SHM, 0x02)

#define	LOS_ERRNO_DYN_SHM_ALREADY_MAPPED LOS_ERRNO_OS_ERROR(LOS_MOD_DYN_SHM, 0x03)

#define	LOS_ERRNO_DYN_SHM_INIT_REPEATEDLY LOS_ERRNO_OS_ERROR(LOS_MOD_DYN_SHM, 0x04)

#define	LOS_ERRNO_DYN_SHM_IN_ISR LOS_ERRNO_OS_ERROR(LOS_MOD_DYN_SHM, 0x05)

#define	LOS_ERRNO_DYN_SHM_NOT_READY LOS_ERRNO_OS_ERROR(LOS_MOD_DYN_SHM, 0x06)

#define	SHM_CACHE_MASK 0b001

#define	SHM_SEC_MASK 0b010

#define	SHM_MMZ_MASK 0b100

#define	LOS_SHM_IS_CACHE(x) ((UINT32)(x) & SHM_CACHE_MASK)

#define	LOS_SHM_IS_SEC(x) ((UINT32)(x) & SHM_SEC_MASK)

#define	LOS_SHM_IS_MMZ(x) ((UINT32)(x) & SHM_MMZ_MASK)

#define	SHM_ALIGN_UP(val, align) (((val) + (align) - 1) & (~((UADDR)(align) - 1)))

#define	SHM_ALIGN_DN(val, align) ((val) & (~((UADDR)(align) - 1)))

#define	SHM_ALIGN_OFFSET(val, align) ((val) & ((UADDR)(align) - 1))

#define	DYN_SHM_RGN_MAX 8

类型定义
typedef UINT64	UADDR

typedef UINT32(*	DynShmFlushIoMmuTlbHandler) (BOOL flushCache)

typedef UINT32(*	DynShmBulkAllocHandler) (DynShmBulkMem *mem)

typedef UINT32(*	DynShmBulkFreeHandler) (DynShmBulkMem *mem)

枚举
enum	DynShmMemType { LOS_VA_SPACE_NOSEC_NOCACHE = 0b000 , LOS_VA_SPACE_NOSEC_CACHE = 0b001 , LOS_VA_SPACE_SEC_NOCACHE = 0b010 , LOS_VA_SPACE_SEC_CACHE = 0b011 , LOS_VA_SPACE_TYPE_MAX = 4 , LOS_MMZ_SPACE_NOSEC_NOCACHE = 0b100 , LOS_MMZ_SPACE_NOSEC_CACHE = 0b101 , LOS_MMZ_SPACE_SEC_NOCACHE = 0b110 , LOS_MMZ_SPACE_SEC_CACHE = 0b111 , LOS_SHM_TYPE_MAX }

enum	DynShmTransType { INNER_VA_TO_OUTER_VA = 0 , OUTER_VA_TO_INNER_VA , INNER_VA_TO_MEM_PA , OUTER_VA_TO_MEM_PA , SHM_ADDR_TRANS_TYPE_MAX }

函数
UINT32	LOS_DynShmInit (DynShmConfig *config)
	Init dynamic shared memory module.

UINT32	LOS_DynShmMap (UADDR inAddr, UINT32 size, DynShmMemType memType, UINTPTR *outAddr)
	Setup Mapping from input address to output address.

UINT32	LOS_DynShmUnmap (UINTPTR virAddr, UINT32 size)
	Destroy Mapping from input address to output address.

UINT32	LOS_DynShmAddrTranslate (UADDR inAddr, UADDR *outAddr, DynShmTransType optType)
	Translate address from input to output.

void *	LOS_DynShmBulkMalloc (DynShmBulkMem *mem)
	Malloc memory in bulk.

UINT32	LOS_DynShmBulkFree (DynShmBulkMem *mem)
	Malloc memory in bulk.

宏定义说明

◆ DYN_SHM_RGN_MAX

#define DYN_SHM_RGN_MAX 8

◆ LOS_SHM_IS_CACHE

#define LOS_SHM_IS_CACHE ( x ) ((UINT32)(x) & SHM_CACHE_MASK)

◆ LOS_SHM_IS_MMZ

#define LOS_SHM_IS_MMZ ( x ) ((UINT32)(x) & SHM_MMZ_MASK)

◆ LOS_SHM_IS_SEC

#define LOS_SHM_IS_SEC ( x ) ((UINT32)(x) & SHM_SEC_MASK)

◆ SHM_ALIGN_DN

#define SHM_ALIGN_DN	(	val,
		align
	)	((val) & (~((UADDR)(align) - 1)))

◆ SHM_ALIGN_OFFSET

#define SHM_ALIGN_OFFSET	(	val,
		align
	)	((val) & ((UADDR)(align) - 1))

◆ SHM_ALIGN_UP

#define SHM_ALIGN_UP	(	val,
		align
	)	(((val) + (align) - 1) & (~((UADDR)(align) - 1)))

◆ SHM_CACHE_MASK

#define SHM_CACHE_MASK 0b001

◆ SHM_MMZ_MASK

#define SHM_MMZ_MASK 0b100

◆ SHM_SEC_MASK

#define SHM_SEC_MASK 0b010

类型定义说明

◆ DynShmBulkAllocHandler

typedef UINT32(* DynShmBulkAllocHandler) (DynShmBulkMem *mem)

◆ DynShmBulkFreeHandler

typedef UINT32(* DynShmBulkFreeHandler) (DynShmBulkMem *mem)

◆ DynShmFlushIoMmuTlbHandler

typedef UINT32(* DynShmFlushIoMmuTlbHandler) (BOOL flushCache)

◆ UADDR

typedef UINT64 UADDR

枚举类型说明

◆ DynShmMemType

enum DynShmMemType

枚举值
LOS_VA_SPACE_NOSEC_NOCACHE
LOS_VA_SPACE_NOSEC_CACHE
LOS_VA_SPACE_SEC_NOCACHE
LOS_VA_SPACE_SEC_CACHE
LOS_VA_SPACE_TYPE_MAX
LOS_MMZ_SPACE_NOSEC_NOCACHE
LOS_MMZ_SPACE_NOSEC_CACHE
LOS_MMZ_SPACE_SEC_NOCACHE
LOS_MMZ_SPACE_SEC_CACHE
LOS_SHM_TYPE_MAX

◆ DynShmTransType

enum DynShmTransType

枚举值
INNER_VA_TO_OUTER_VA
OUTER_VA_TO_INNER_VA
INNER_VA_TO_MEM_PA
OUTER_VA_TO_MEM_PA
SHM_ADDR_TRANS_TYPE_MAX

结构体

宏定义

类型定义

枚举

函数