kolibrios-fun/contrib/other/uarm/dcache.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

50 lines
1.1 KiB
C
Executable File

#ifndef _DCACHE_H_
#define _DCACHE_H_
#include "types.h"
#include "CPU.h"
#define DCACHE_L 5UL //line size is 2^L bytes
#define DCACHE_S 6UL //number of sets is 2^S
#define DCACHE_A 4UL //set associativity
#define DCACHE_LINE_SZ (1UL << ICACHE_L)
#define DCACHE_BUCKET_NUM (1UL << ICACHE_S)
#define DCACHE_BUCKET_SZ (ICACHE_A)
#define DCACHE_ADDR_MASK ((UInt32)-ICACHE_LINE_SZ)
#define DCACHE_USED_MASK 1
#define DCACHE_PRIV_MASK 2
typedef struct{
UInt32 info; //addr, masks
UInt8 data[DCACHE_LINE_SZ];
}dcacheLine;
typedef struct{
struct ArmCpu* cpu;
ArmCpuMemF memF;
dcacheLine lines[DCACHE_BUCKET_NUM][DCACHE_BUCKET_SZ];
UInt8 ptr[DCACHE_BUCKET_NUM];
}dcache;
void dcacheInit(dcache* ic, struct ArmCpu* cpu, ArmCpuMemF memF);
Boolean dcacheFetch(dcache* ic, UInt32 va, UInt8 sz, Boolean priviledged, UInt8* fsr, void* buf);
Boolean dcacheWrite(dcache* ic, UInt32 va, UInt8 sz, Boolean priviledged, UInt8* fsr, void* buf);
void dcacheFlush(dcache* ic);
void dcacheFlushAddr(dcache* ic, UInt32 addr);
void dcacheInval(dcache* ic);
void dcacheInvalAddr(dcache* ic, UInt32 addr);
#endif