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