forked from KolibriOS/kolibrios
50 lines
1.1 KiB
C
Executable File
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
|