2 |
#define CPU_MIPS_H |
#define CPU_MIPS_H |
3 |
|
|
4 |
/* |
/* |
5 |
* Copyright (C) 2003-2005 Anders Gavare. All rights reserved. |
* Copyright (C) 2003-2006 Anders Gavare. All rights reserved. |
6 |
* |
* |
7 |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
8 |
* modification, are permitted provided that the following conditions are met: |
* modification, are permitted provided that the following conditions are met: |
28 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
29 |
* |
* |
30 |
* |
* |
31 |
* $Id: cpu_mips.h,v 1.16 2005/06/26 22:23:43 debug Exp $ |
* $Id: cpu_mips.h,v 1.50 2006/10/14 23:47:37 debug Exp $ |
32 |
*/ |
*/ |
33 |
|
|
34 |
#include "misc.h" |
#include "misc.h" |
35 |
|
|
|
/* |
|
|
* ENABLE_MIPS16 should be defined on the cc commandline using -D, if you |
|
|
* want it. (This is done by ./configure --mips16) |
|
|
*/ |
|
|
/* #define MFHILO_DELAY */ |
|
|
|
|
36 |
struct cpu_family; |
struct cpu_family; |
37 |
struct emul; |
struct emul; |
38 |
struct machine; |
struct machine; |
39 |
|
struct timer; |
40 |
|
|
41 |
/* |
/* |
42 |
* CPU type definitions: See mips_cpu_types.h. |
* CPU type definitions: See mips_cpu_types.h. |
50 |
char exc_model; /* EXC3K or EXC4K */ |
char exc_model; /* EXC3K or EXC4K */ |
51 |
char mmu_model; /* MMU3K or MMU4K */ |
char mmu_model; /* MMU3K or MMU4K */ |
52 |
char isa_level; /* 1, 2, 3, 4, 5, 32, 64 */ |
char isa_level; /* 1, 2, 3, 4, 5, 32, 64 */ |
53 |
|
char isa_revision; /* 1 or 2 (for MIPS32/64) */ |
54 |
int nr_of_tlb_entries; /* 32, 48, 64, ... */ |
int nr_of_tlb_entries; /* 32, 48, 64, ... */ |
55 |
char instrs_per_cycle; /* simplified, 1, 2, or 4 */ |
char instrs_per_cycle; /* simplified, 1, 2, or 4 */ |
56 |
int default_picache; |
int picache; |
57 |
int default_pdcache; |
int pilinesize; |
58 |
int default_pilinesize; |
int piways; |
59 |
int default_pdlinesize; |
int pdcache; |
60 |
int default_scache; |
int pdlinesize; |
61 |
int default_slinesize; |
int pdways; |
62 |
|
int scache; |
63 |
|
int slinesize; |
64 |
|
int sways; |
65 |
}; |
}; |
66 |
|
|
67 |
#define INITIAL_PC 0xffffffffbfc00000ULL |
#define INITIAL_PC 0xffffffffbfc00000ULL |
70 |
|
|
71 |
/* |
/* |
72 |
* Coproc 0: |
* Coproc 0: |
73 |
|
* |
74 |
|
* NOTE: |
75 |
|
* On R3000, only hi and lo0 are used, and then only the lowest 32 bits. |
76 |
*/ |
*/ |
77 |
#define N_MIPS_COPROC_REGS 32 |
#define N_MIPS_COPROC_REGS 32 |
78 |
struct mips_tlb { |
struct mips_tlb { |
86 |
/* |
/* |
87 |
* Coproc 1: |
* Coproc 1: |
88 |
*/ |
*/ |
89 |
#define N_MIPS_FCRS 32 |
/* FPU control registers: */ |
90 |
|
#define N_MIPS_FCRS 32 |
91 |
|
#define MIPS_FPU_FCIR 0 |
92 |
|
#define MIPS_FPU_FCCR 25 |
93 |
|
#define MIPS_FPU_FCSR 31 |
94 |
|
#define MIPS_FCSR_FCC0_SHIFT 23 |
95 |
|
#define MIPS_FCSR_FCC1_SHIFT 25 |
96 |
|
|
97 |
|
#define N_VADDR_TO_TLB_INDEX_ENTRIES (1 << 20) |
98 |
|
|
99 |
struct mips_coproc { |
struct mips_coproc { |
100 |
int coproc_nr; |
int coproc_nr; |
163 |
#define MIPS_GPR_FP 30 /* fp */ |
#define MIPS_GPR_FP 30 /* fp */ |
164 |
#define MIPS_GPR_RA 31 /* ra */ |
#define MIPS_GPR_RA 31 /* ra */ |
165 |
|
|
|
/* Meaning of delay_slot: */ |
|
|
#define NOT_DELAYED 0 |
|
|
#define DELAYED 1 |
|
|
#define TO_BE_DELAYED 2 |
|
|
|
|
166 |
#define N_HI6 64 |
#define N_HI6 64 |
167 |
#define N_SPECIAL 64 |
#define N_SPECIAL 64 |
168 |
#define N_REGIMM 32 |
#define N_REGIMM 32 |
169 |
|
|
|
/* Number of "tiny" translation cache entries: */ |
|
|
#define N_TRANSLATION_CACHE_INSTR 5 |
|
|
#define N_TRANSLATION_CACHE_DATA 5 |
|
|
|
|
|
struct translation_cache_entry { |
|
|
int wf; |
|
|
uint64_t vaddr_pfn; |
|
|
uint64_t paddr; |
|
|
}; |
|
|
|
|
|
/* This should be a value which the program counter |
|
|
can "never" have: */ |
|
|
#define PC_LAST_PAGE_IMPOSSIBLE_VALUE 3 |
|
170 |
|
|
171 |
/* An "impossible" paddr: */ |
/* An "impossible" paddr: */ |
172 |
#define IMPOSSIBLE_PADDR 0x1212343456566767ULL |
#define IMPOSSIBLE_PADDR 0x1212343456566767ULL |
185 |
char dummy; |
char dummy; |
186 |
}; |
}; |
187 |
|
|
|
#define BINTRANS_DONT_RUN_NEXT 0x1000000 |
|
|
#define BINTRANS_N_MASK 0x0ffffff |
|
188 |
|
|
189 |
#define N_SAFE_BINTRANS_LIMIT_SHIFT 14 |
#ifdef ONEKPAGE |
190 |
#define N_SAFE_BINTRANS_LIMIT ((1 << (N_SAFE_BINTRANS_LIMIT_SHIFT - 1)) - 1) |
#define MIPS_IC_ENTRIES_SHIFT 8 |
191 |
|
#else |
192 |
|
#define MIPS_IC_ENTRIES_SHIFT 10 |
193 |
|
#endif |
194 |
|
|
195 |
#define N_BINTRANS_VADDR_TO_HOST 20 |
#define MIPS_N_IC_ARGS 3 |
196 |
|
#define MIPS_INSTR_ALIGNMENT_SHIFT 2 |
197 |
|
#define MIPS_IC_ENTRIES_PER_PAGE (1 << MIPS_IC_ENTRIES_SHIFT) |
198 |
|
#define MIPS_PC_TO_IC_ENTRY(a) (((a)>>MIPS_INSTR_ALIGNMENT_SHIFT) \ |
199 |
|
& (MIPS_IC_ENTRIES_PER_PAGE-1)) |
200 |
|
#define MIPS_ADDR_TO_PAGENR(a) ((a) >> (MIPS_IC_ENTRIES_SHIFT \ |
201 |
|
+ MIPS_INSTR_ALIGNMENT_SHIFT)) |
202 |
|
|
203 |
|
#define MIPS_L2N 17 |
204 |
|
#define MIPS_L3N 18 |
205 |
|
|
206 |
|
#define MIPS_MAX_VPH_TLB_ENTRIES 192 |
207 |
|
DYNTRANS_MISC_DECLARATIONS(mips,MIPS,uint64_t) |
208 |
|
DYNTRANS_MISC64_DECLARATIONS(mips,MIPS,uint8_t) |
209 |
|
|
|
/* Virtual to host address translation tables: */ |
|
|
struct vth32_table { |
|
|
void *haddr_entry[1024 * 2]; |
|
|
uint32_t paddr_entry[1024]; |
|
|
uint32_t *bintrans_chunks[1024]; |
|
|
struct vth32_table *next_free; |
|
|
int refcount; |
|
|
}; |
|
210 |
|
|
211 |
struct mips_cpu { |
struct mips_cpu { |
212 |
struct mips_cpu_type_def cpu_type; |
struct mips_cpu_type_def cpu_type; |
213 |
|
|
214 |
struct mips_coproc *coproc[N_MIPS_COPROCS]; |
/* General purpose registers: */ |
215 |
|
uint64_t gpr[N_MIPS_GPRS]; |
216 |
|
|
217 |
int compare_register_set; |
/* Dummy destination register when writing to the zero register: */ |
218 |
|
uint64_t scratch; |
219 |
|
|
220 |
/* Special purpose registers: */ |
/* Special purpose registers: */ |
|
uint64_t pc_last; /* PC of last instruction */ |
|
221 |
uint64_t hi; |
uint64_t hi; |
222 |
uint64_t lo; |
uint64_t lo; |
223 |
|
|
224 |
/* General purpose registers: */ |
/* Coprocessors: */ |
225 |
uint64_t gpr[N_MIPS_GPRS]; |
struct mips_coproc *coproc[N_MIPS_COPROCS]; |
226 |
|
uint64_t cop0_config_select1; |
|
/* |
|
|
* The translation_cached stuff is used to speed up the |
|
|
* most recent lookups into the TLB. Whenever the TLB is |
|
|
* written to, translation_cached[] must be filled with zeros. |
|
|
*/ |
|
|
#ifdef USE_TINY_CACHE |
|
|
struct translation_cache_entry |
|
|
translation_cache_instr[N_TRANSLATION_CACHE_INSTR]; |
|
|
struct translation_cache_entry |
|
|
translation_cache_data[N_TRANSLATION_CACHE_DATA]; |
|
|
#endif |
|
|
|
|
|
/* |
|
|
* For faster memory lookup when running instructions: |
|
|
* |
|
|
* Reading memory to load instructions is a very common thing in the |
|
|
* emulator, and an instruction is very often read from the address |
|
|
* following the previously executed instruction. That means that we |
|
|
* don't have to go through the TLB each time. |
|
|
* |
|
|
* We then get the vaddr -> paddr translation for free. There is an |
|
|
* even better case when the paddr is a RAM address (as opposed to an |
|
|
* address in a memory mapped device). Then we can figure out the |
|
|
* address in the host's memory directly, and skip the paddr -> host |
|
|
* address calculation as well. |
|
|
* |
|
|
* A modification to the TLB should set the virtual_page variable to |
|
|
* an "impossible" value, so that there won't be a hit on the next |
|
|
* instruction. |
|
|
*/ |
|
|
uint64_t pc_last_virtual_page; |
|
|
uint64_t pc_last_physical_page; |
|
|
unsigned char *pc_last_host_4k_page; |
|
|
|
|
|
#ifdef BINTRANS |
|
|
int dont_run_next_bintrans; |
|
|
int bintrans_instructions_executed; /* set to the |
|
|
number of bintranslated instructions executed |
|
|
when running a bintrans codechunk */ |
|
|
int pc_bintrans_paddr_valid; |
|
|
uint64_t pc_bintrans_paddr; |
|
|
unsigned char *pc_bintrans_host_4kpage; |
|
|
|
|
|
/* Chunk base address: */ |
|
|
unsigned char *chunk_base_address; |
|
|
|
|
|
/* This should work for 32-bit MIPS emulation: */ |
|
|
struct vth32_table *vaddr_to_hostaddr_nulltable; |
|
|
struct vth32_table *vaddr_to_hostaddr_r2k3k_icachetable; |
|
|
struct vth32_table *vaddr_to_hostaddr_r2k3k_dcachetable; |
|
|
struct vth32_table **vaddr_to_hostaddr_table0_kernel; |
|
|
struct vth32_table **vaddr_to_hostaddr_table0_cacheisol_i; |
|
|
struct vth32_table **vaddr_to_hostaddr_table0_cacheisol_d; |
|
|
struct vth32_table **vaddr_to_hostaddr_table0_user; |
|
|
struct vth32_table **vaddr_to_hostaddr_table0; /* should point to kernel or user */ |
|
|
struct vth32_table *next_free_vth_table; |
|
|
|
|
|
/* For 64-bit (generic) emulation: */ |
|
|
unsigned char *(*fast_vaddr_to_hostaddr)(struct cpu *cpu, |
|
|
uint64_t vaddr, int writeflag); |
|
|
int bintrans_next_index; |
|
|
int bintrans_data_writable[N_BINTRANS_VADDR_TO_HOST]; |
|
|
uint64_t bintrans_data_vaddr[N_BINTRANS_VADDR_TO_HOST]; |
|
|
unsigned char *bintrans_data_hostpage[N_BINTRANS_VADDR_TO_HOST]; |
|
|
|
|
|
void (*bintrans_load_32bit)(struct cpu *); /* Note: incorrect args */ |
|
|
void (*bintrans_store_32bit)(struct cpu *); /* Note: incorrect args */ |
|
|
void (*bintrans_jump_to_32bit_pc)(struct cpu *); |
|
|
void (*bintrans_simple_exception)(struct cpu *, int); |
|
|
void (*bintrans_fast_rfe)(struct cpu *); |
|
|
void (*bintrans_fast_eret)(struct cpu *); |
|
|
void (*bintrans_fast_tlbwri)(struct cpu *, int); |
|
|
void (*bintrans_fast_tlbpr)(struct cpu *, int); |
|
|
#endif |
|
|
|
|
|
#ifdef ENABLE_MIPS16 |
|
|
int mips16; /* non-zero if MIPS16 code is allowed */ |
|
|
uint16_t mips16_extend; /* set on 'extend' instructions to the entire 16-bit extend instruction */ |
|
|
#endif |
|
|
|
|
|
#ifdef ENABLE_INSTRUCTION_DELAYS |
|
|
int instruction_delay; |
|
|
#endif |
|
227 |
|
|
228 |
int trace_tree_depth; |
int last_written_tlb_index; |
229 |
|
|
230 |
uint64_t delay_jmpaddr; /* only used if delay_slot > 0 */ |
/* Count/compare timer: */ |
231 |
int delay_slot; |
int compare_register_set; |
232 |
int nullify_next; /* set to 1 if next instruction |
int compare_interrupts_pending; |
233 |
is to be nullified */ |
struct timer *timer; |
|
|
|
|
/* This is set to non-zero, if it is possible at all that an |
|
|
interrupt will occur. */ |
|
|
int cached_interrupt_is_possible; |
|
|
|
|
|
int show_trace_delay; /* 0=normal, > 0 = delay until show_trace */ |
|
|
uint64_t show_trace_addr; |
|
|
|
|
|
int last_was_jumptoself; |
|
|
int jump_to_self_reg; |
|
|
|
|
|
#ifdef MFHILO_DELAY |
|
|
int mfhi_delay; /* instructions since last mfhi */ |
|
|
int mflo_delay; /* instructions since last mflo */ |
|
|
#endif |
|
234 |
|
|
235 |
int rmw; /* Read-Modify-Write */ |
int rmw; /* Read-Modify-Write */ |
236 |
int rmw_len; /* Length of rmw modification */ |
int rmw_len; /* Length of rmw modification */ |
237 |
uint64_t rmw_addr; /* Address of rmw modification */ |
uint64_t rmw_addr; /* Address of rmw modification */ |
238 |
|
|
239 |
/* |
/* |
240 |
* TODO: The R5900 has 128-bit registers. I'm not really sure |
* NOTE: The R5900 has 128-bit registers. I'm not really sure |
241 |
* whether they are used a lot or not, at least with code produced |
* whether they are used a lot or not, at least with code produced |
242 |
* with gcc they are not. An important case however is lq and sq |
* with gcc they are not. An important case however is lq and sq |
243 |
* (load and store of 128-bit values). These "upper halves" of R5900 |
* (load and store of 128-bit values). These "upper halves" of R5900 |
244 |
* quadwords can be used in those cases. |
* quadwords can be used in those cases. |
245 |
* |
* |
246 |
|
* hi1 and lo1 are the high 64-bit parts of the hi and lo registers. |
247 |
|
* sa is a 32-bit "shift amount" register. |
248 |
|
* |
249 |
* TODO: Generalize this. |
* TODO: Generalize this. |
250 |
*/ |
*/ |
251 |
uint64_t gpr_quadhi[N_MIPS_GPRS]; |
uint64_t gpr_quadhi[N_MIPS_GPRS]; |
252 |
|
uint64_t hi1; |
253 |
|
uint64_t lo1; |
254 |
/* |
uint32_t r5900_sa; |
|
* Statistics: |
|
|
*/ |
|
|
long stats_opcode[N_HI6]; |
|
|
long stats__special[N_SPECIAL]; |
|
|
long stats__regimm[N_REGIMM]; |
|
|
long stats__special2[N_SPECIAL]; |
|
255 |
|
|
256 |
/* Data and Instruction caches: */ |
/* Data and Instruction caches: */ |
257 |
unsigned char *cache[2]; |
unsigned char *cache[2]; |
262 |
int cache_mask[2]; |
int cache_mask[2]; |
263 |
int cache_miss_penalty[2]; |
int cache_miss_penalty[2]; |
264 |
|
|
265 |
/* Other stuff: */ |
|
266 |
uint64_t cop0_config_select1; |
/* |
267 |
|
* Instruction translation cache and Virtual->Physical->Host |
268 |
|
* address translation: |
269 |
|
*/ |
270 |
|
DYNTRANS_ITC(mips) |
271 |
|
VPH_TLBS(mips,MIPS) |
272 |
|
VPH32(mips,MIPS,uint64_t,uint8_t) |
273 |
|
VPH64(mips,MIPS,uint8_t) |
274 |
}; |
}; |
275 |
|
|
276 |
|
|
277 |
/* cpu_mips.c: */ |
/* cpu_mips.c: */ |
278 |
void mips_cpu_show_full_statistics(struct machine *m); |
int mips_cpu_instruction_has_delayslot(struct cpu *cpu, unsigned char *ib); |
279 |
void mips_cpu_tlbdump(struct machine *m, int x, int rawflag); |
void mips_cpu_tlbdump(struct machine *m, int x, int rawflag); |
280 |
void mips_cpu_register_match(struct machine *m, char *name, |
void mips_cpu_register_match(struct machine *m, char *name, |
281 |
int writeflag, uint64_t *valuep, int *match_register); |
int writeflag, uint64_t *valuep, int *match_register); |
282 |
void mips_cpu_register_dump(struct cpu *cpu, int gprs, int coprocs); |
void mips_cpu_register_dump(struct cpu *cpu, int gprs, int coprocs); |
283 |
int mips_cpu_disassemble_instr(struct cpu *cpu, unsigned char *instr, |
int mips_cpu_disassemble_instr(struct cpu *cpu, unsigned char *instr, |
284 |
int running, uint64_t addr, int bintrans); |
int running, uint64_t addr); |
285 |
int mips_cpu_interrupt(struct cpu *cpu, uint64_t irq_nr); |
int mips_cpu_interrupt(struct cpu *cpu, uint64_t irq_nr); |
286 |
int mips_cpu_interrupt_ack(struct cpu *cpu, uint64_t irq_nr); |
int mips_cpu_interrupt_ack(struct cpu *cpu, uint64_t irq_nr); |
287 |
void mips_cpu_exception(struct cpu *cpu, int exccode, int tlb, uint64_t vaddr, |
void mips_cpu_exception(struct cpu *cpu, int exccode, int tlb, uint64_t vaddr, |
288 |
/* uint64_t pagemask, */ int coproc_nr, uint64_t vaddr_vpn2, |
/* uint64_t pagemask, */ int coproc_nr, uint64_t vaddr_vpn2, |
289 |
int vaddr_asid, int x_64); |
int vaddr_asid, int x_64); |
|
void mips_cpu_cause_simple_exception(struct cpu *cpu, int exc_code); |
|
290 |
int mips_cpu_run(struct emul *emul, struct machine *machine); |
int mips_cpu_run(struct emul *emul, struct machine *machine); |
291 |
void mips_cpu_dumpinfo(struct cpu *cpu); |
void mips_cpu_dumpinfo(struct cpu *cpu); |
292 |
void mips_cpu_list_available_types(void); |
void mips_cpu_list_available_types(void); |
299 |
uint64_t vaddr, uint64_t paddr0, uint64_t paddr1, |
uint64_t vaddr, uint64_t paddr0, uint64_t paddr1, |
300 |
int valid0, int valid1, int dirty0, int dirty1, int global, int asid, |
int valid0, int valid1, int dirty0, int dirty1, int global, int asid, |
301 |
int cachealgo0, int cachealgo1); |
int cachealgo0, int cachealgo1); |
|
void update_translation_table(struct cpu *cpu, uint64_t vaddr_page, |
|
|
unsigned char *host_page, int writeflag, uint64_t paddr_page); |
|
|
void clear_all_chunks_from_all_tables(struct cpu *cpu); |
|
|
void mips_invalidate_translation_caches_paddr(struct cpu *cpu, uint64_t paddr); |
|
302 |
void coproc_register_read(struct cpu *cpu, |
void coproc_register_read(struct cpu *cpu, |
303 |
struct mips_coproc *cp, int reg_nr, uint64_t *ptr, int select); |
struct mips_coproc *cp, int reg_nr, uint64_t *ptr, int select); |
304 |
void coproc_register_write(struct cpu *cpu, |
void coproc_register_write(struct cpu *cpu, |
318 |
int mips_memory_rw(struct cpu *cpu, struct memory *mem, uint64_t vaddr, |
int mips_memory_rw(struct cpu *cpu, struct memory *mem, uint64_t vaddr, |
319 |
unsigned char *data, size_t len, int writeflag, int cache_flags); |
unsigned char *data, size_t len, int writeflag, int cache_flags); |
320 |
|
|
321 |
|
int translate_v2p_mmu3k(struct cpu *cpu, uint64_t vaddr, |
322 |
/* mips16.c: */ |
uint64_t *return_addr, int flags); |
323 |
int mips16_to_32(struct cpu *cpu, unsigned char *instr16, unsigned char *instr); |
int translate_v2p_mmu8k(struct cpu *cpu, uint64_t vaddr, |
324 |
|
uint64_t *return_addr, int flags); |
325 |
|
int translate_v2p_mmu10k(struct cpu *cpu, uint64_t vaddr, |
326 |
|
uint64_t *return_addr, int flags); |
327 |
|
int translate_v2p_mmu4100(struct cpu *cpu, uint64_t vaddr, |
328 |
|
uint64_t *return_addr, int flags); |
329 |
|
int translate_v2p_generic(struct cpu *cpu, uint64_t vaddr, |
330 |
|
uint64_t *return_addr, int flags); |
331 |
|
|
332 |
|
|
333 |
|
/* Dyntrans unaligned load/store: */ |
334 |
|
void mips_unaligned_loadstore(struct cpu *cpu, struct mips_instr_call *ic, |
335 |
|
int is_left, int wlen, int store); |
336 |
|
|
337 |
|
|
338 |
|
int mips_run_instr(struct cpu *cpu); |
339 |
|
void mips_update_translation_table(struct cpu *cpu, uint64_t vaddr_page, |
340 |
|
unsigned char *host_page, int writeflag, uint64_t paddr_page); |
341 |
|
void mips_invalidate_translation_caches(struct cpu *cpu, uint64_t, int); |
342 |
|
void mips_invalidate_code_translation(struct cpu *cpu, uint64_t, int); |
343 |
|
int mips32_run_instr(struct cpu *cpu); |
344 |
|
void mips32_update_translation_table(struct cpu *cpu, uint64_t vaddr_page, |
345 |
|
unsigned char *host_page, int writeflag, uint64_t paddr_page); |
346 |
|
void mips32_invalidate_translation_caches(struct cpu *cpu, uint64_t, int); |
347 |
|
void mips32_invalidate_code_translation(struct cpu *cpu, uint64_t, int); |
348 |
|
|
349 |
|
|
350 |
#endif /* CPU_MIPS_H */ |
#endif /* CPU_MIPS_H */ |