48 lines
992 B
C
48 lines
992 B
C
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#ifndef _ICACHE_H_
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#define _ICACHE_H_
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#include "types.h"
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#include "CPU.h"
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#define ICACHE_L 4UL //line size is 2^L bytes
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#define ICACHE_S 6UL //number of sets is 2^S
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#define ICACHE_A 6UL //set associativity
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#define ICACHE_LINE_SZ (1UL << ICACHE_L)
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#define ICACHE_BUCKET_NUM (1UL << ICACHE_S)
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#define ICACHE_BUCKET_SZ (ICACHE_A)
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#define ICACHE_ADDR_MASK ((UInt32)-ICACHE_LINE_SZ)
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#define ICACHE_USED_MASK 1UL
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#define ICACHE_PRIV_MASK 2UL
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typedef struct{
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UInt32 info; //addr, masks
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UInt8 data[ICACHE_LINE_SZ];
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}icacheLine;
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typedef struct{
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struct ArmCpu* cpu;
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ArmCpuMemF memF;
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icacheLine lines[ICACHE_BUCKET_NUM][ICACHE_BUCKET_SZ];
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UInt8 ptr[ICACHE_BUCKET_NUM];
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}icache;
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void icacheInit(icache* ic, struct ArmCpu* cpu, ArmCpuMemF memF);
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Boolean icacheFetch(icache* ic, UInt32 va, UInt8 sz, Boolean priviledged, UInt8* fsr, void* buf);
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void icacheInval(icache* ic);
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void icacheInvalAddr(icache* ic, UInt32 addr);
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#endif
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