kolibrios-fun/contrib/other/uarm/MMU.h
maxcodehack a03882245a Upload uARM emulator (linux4kolibri)
git-svn-id: svn://kolibrios.org@8327 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-12-05 14:28:30 +00:00

65 lines
1.3 KiB
C
Executable File

#ifndef _MMU_H_
#define _MMU_H_
#include "types.h"
#define MMU_TLB_BUCKET_SIZE 8
#define MMU_TLB_BUCKET_NUM 32
#define MMU_DISABLED_TTP 0xFFFFFFFFUL
typedef Err (*ArmMmuReadF)(void* userData, UInt32* buf, UInt32 pa); //read a word
#define errMmuTranslation (errMmu + 1)
#define errMmuDomain (errMmu + 2)
#define errMmuPermission (errMmu + 3)
typedef struct {
UInt32 pa, va;
UInt32 sz;
UInt32 ap:2;
UInt32 domain:4;
}ArmPrvTlb;
typedef struct ArmMmu{
UInt32 transTablPA;
UInt8 S:1;
UInt8 R:1;
UInt8 readPos[MMU_TLB_BUCKET_NUM];
UInt8 replPos[MMU_TLB_BUCKET_NUM];
ArmPrvTlb tlb[MMU_TLB_BUCKET_NUM][MMU_TLB_BUCKET_SIZE];
UInt32 domainCfg;
ArmMmuReadF readF;
void* userData;
}ArmMmu;
void mmuInit(ArmMmu* mmu, ArmMmuReadF readF, void* userData);
void muDeinit(ArmMmu* mmu);
Boolean mmuTranslate(ArmMmu* mmu, UInt32 va, Boolean priviledged, Boolean write, UInt32* paP, UInt8* fsrP);
UInt32 mmuGetTTP(ArmMmu* mmu);
void mmuSetTTP(ArmMmu* mmu, UInt32 ttp);
void mmuSetS(ArmMmu* mmu, Boolean on);
void mmuSetR(ArmMmu* mmu, Boolean on);
Boolean mmuGetS(ArmMmu* mmu);
Boolean mmuGetR(ArmMmu* mmu);
UInt32 mmuGetDomainCfg(ArmMmu* mmu);
void mmuSetDomainCfg(ArmMmu* mmu, UInt32 val);
void mmuTlbFlush(ArmMmu* mmu);
#endif