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MIPS TLB style selection at runtime, by Herve Poussineau.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2809 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-05-13 13:49:44 +00:00
parent f707cfba9a
commit 29929e3490
8 changed files with 149 additions and 114 deletions
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32
target-mips/cpu.h
View file

@ -33,9 +33,8 @@ union fpr_t {
# define FP_ENDIAN_IDX 0
#endif
#if defined(MIPS_USES_R4K_TLB)
typedef struct tlb_t tlb_t;
struct tlb_t {
typedef struct r4k_tlb_t r4k_tlb_t;
struct r4k_tlb_t {
target_ulong VPN;
uint32_t PageMask;
uint_fast8_t ASID;
@ -48,7 +47,6 @@ struct tlb_t {
uint_fast16_t D1:1;
target_ulong PFN[2];
};
#endif
typedef struct CPUMIPSState CPUMIPSState;
struct CPUMIPSState {
@ -100,11 +98,19 @@ struct CPUMIPSState {
#define FP_INVALID 16
#define FP_UNIMPLEMENTED 32
#if defined(MIPS_USES_R4K_TLB)
tlb_t tlb[MIPS_TLB_MAX];
uint32_t tlb_in_use;
uint32_t nb_tlb;
#endif
uint32_t tlb_in_use;
int (*map_address) (CPUMIPSState *env, target_ulong *physical, int *prot, target_ulong address, int rw, int access_type);
void (*do_tlbwi) (void);
void (*do_tlbwr) (void);
void (*do_tlbp) (void);
void (*do_tlbr) (void);
union {
struct {
r4k_tlb_t tlb[MIPS_TLB_MAX];
} r4k;
} mmu;
int32_t CP0_Index;
int32_t CP0_Random;
target_ulong CP0_EntryLo0;
@ -289,6 +295,16 @@ struct CPUMIPSState {
struct QEMUTimer *timer; /* Internal timer */
};
int no_mmu_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
target_ulong address, int rw, int access_type);
int fixed_mmu_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
target_ulong address, int rw, int access_type);
int r4k_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
target_ulong address, int rw, int access_type);
void r4k_do_tlbwi (void);
void r4k_do_tlbwr (void);
void r4k_do_tlbp (void);
void r4k_do_tlbr (void);
typedef struct mips_def_t mips_def_t;
int mips_find_by_name (const unsigned char *name, mips_def_t **def);
void mips_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...));