1 #if !defined (__MIPS_CPU_H__)
4 #define TARGET_HAS_ICE 1
6 #define ELF_MACHINE EM_MIPS
8 #define CPUState struct CPUMIPSState
11 #include "qemu-common.h"
12 #include "mips-defs.h"
14 #include "softfloat.h"
16 // uint_fast8_t and uint_fast16_t not in <sys/int_types.h>
17 // XXX: move that elsewhere
18 #if defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10
19 typedef unsigned char uint_fast8_t;
20 typedef unsigned int uint_fast16_t;
25 typedef struct r4k_tlb_t r4k_tlb_t;
40 #if !defined(CONFIG_USER_ONLY)
41 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
42 struct CPUMIPSTLBContext {
45 int (*map_address) (struct CPUMIPSState *env, target_phys_addr_t *physical, int *prot, target_ulong address, int rw, int access_type);
46 void (*helper_tlbwi) (void);
47 void (*helper_tlbwr) (void);
48 void (*helper_tlbp) (void);
49 void (*helper_tlbr) (void);
52 r4k_tlb_t tlb[MIPS_TLB_MAX];
58 typedef union fpr_t fpr_t;
60 float64 fd; /* ieee double precision */
61 float32 fs[2];/* ieee single precision */
62 uint64_t d; /* binary double fixed-point */
63 uint32_t w[2]; /* binary single fixed-point */
65 /* define FP_ENDIAN_IDX to access the same location
66 * in the fpr_t union regardless of the host endianess
68 #if defined(HOST_WORDS_BIGENDIAN)
69 # define FP_ENDIAN_IDX 1
71 # define FP_ENDIAN_IDX 0
74 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
75 struct CPUMIPSFPUContext {
76 /* Floating point registers */
78 float_status fp_status;
79 /* fpu implementation/revision register (fir) */
92 #define SET_FP_COND(num,env) do { ((env).fcr31) |= ((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0)
93 #define CLEAR_FP_COND(num,env) do { ((env).fcr31) &= ~((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0)
94 #define GET_FP_COND(env) ((((env).fcr31 >> 24) & 0xfe) | (((env).fcr31 >> 23) & 0x1))
95 #define GET_FP_CAUSE(reg) (((reg) >> 12) & 0x3f)
96 #define GET_FP_ENABLE(reg) (((reg) >> 7) & 0x1f)
97 #define GET_FP_FLAGS(reg) (((reg) >> 2) & 0x1f)
98 #define SET_FP_CAUSE(reg,v) do { (reg) = ((reg) & ~(0x3f << 12)) | ((v & 0x3f) << 12); } while(0)
99 #define SET_FP_ENABLE(reg,v) do { (reg) = ((reg) & ~(0x1f << 7)) | ((v & 0x1f) << 7); } while(0)
100 #define SET_FP_FLAGS(reg,v) do { (reg) = ((reg) & ~(0x1f << 2)) | ((v & 0x1f) << 2); } while(0)
101 #define UPDATE_FP_FLAGS(reg,v) do { (reg) |= ((v & 0x1f) << 2); } while(0)
103 #define FP_UNDERFLOW 2
104 #define FP_OVERFLOW 4
106 #define FP_INVALID 16
107 #define FP_UNIMPLEMENTED 32
110 #define NB_MMU_MODES 3
112 typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
113 struct CPUMIPSMVPContext {
114 int32_t CP0_MVPControl;
115 #define CP0MVPCo_CPA 3
116 #define CP0MVPCo_STLB 2
117 #define CP0MVPCo_VPC 1
118 #define CP0MVPCo_EVP 0
119 int32_t CP0_MVPConf0;
120 #define CP0MVPC0_M 31
121 #define CP0MVPC0_TLBS 29
122 #define CP0MVPC0_GS 28
123 #define CP0MVPC0_PCP 27
124 #define CP0MVPC0_PTLBE 16
125 #define CP0MVPC0_TCA 15
126 #define CP0MVPC0_PVPE 10
127 #define CP0MVPC0_PTC 0
128 int32_t CP0_MVPConf1;
129 #define CP0MVPC1_CIM 31
130 #define CP0MVPC1_CIF 30
131 #define CP0MVPC1_PCX 20
132 #define CP0MVPC1_PCP2 10
133 #define CP0MVPC1_PCP1 0
136 typedef struct mips_def_t mips_def_t;
138 #define MIPS_SHADOW_SET_MAX 16
139 #define MIPS_TC_MAX 5
140 #define MIPS_FPU_MAX 1
141 #define MIPS_DSP_ACC 4
143 typedef struct TCState TCState;
145 target_ulong gpr[32];
147 target_ulong HI[MIPS_DSP_ACC];
148 target_ulong LO[MIPS_DSP_ACC];
149 target_ulong ACX[MIPS_DSP_ACC];
150 target_ulong DSPControl;
151 int32_t CP0_TCStatus;
152 #define CP0TCSt_TCU3 31
153 #define CP0TCSt_TCU2 30
154 #define CP0TCSt_TCU1 29
155 #define CP0TCSt_TCU0 28
156 #define CP0TCSt_TMX 27
157 #define CP0TCSt_RNST 23
158 #define CP0TCSt_TDS 21
159 #define CP0TCSt_DT 20
160 #define CP0TCSt_DA 15
162 #define CP0TCSt_TKSU 11
163 #define CP0TCSt_IXMT 10
164 #define CP0TCSt_TASID 0
166 #define CP0TCBd_CurTC 21
167 #define CP0TCBd_TBE 17
168 #define CP0TCBd_CurVPE 0
169 target_ulong CP0_TCHalt;
170 target_ulong CP0_TCContext;
171 target_ulong CP0_TCSchedule;
172 target_ulong CP0_TCScheFBack;
173 int32_t CP0_Debug_tcstatus;
176 typedef struct CPUMIPSState CPUMIPSState;
177 struct CPUMIPSState {
179 CPUMIPSFPUContext active_fpu;
182 uint32_t current_fpu;
186 target_ulong SEGMask;
190 /* CP0_MVP* are per MVP registers. */
192 int32_t CP0_VPEControl;
193 #define CP0VPECo_YSI 21
194 #define CP0VPECo_GSI 20
195 #define CP0VPECo_EXCPT 16
196 #define CP0VPECo_TE 15
197 #define CP0VPECo_TargTC 0
198 int32_t CP0_VPEConf0;
199 #define CP0VPEC0_M 31
200 #define CP0VPEC0_XTC 21
201 #define CP0VPEC0_TCS 19
202 #define CP0VPEC0_SCS 18
203 #define CP0VPEC0_DSC 17
204 #define CP0VPEC0_ICS 16
205 #define CP0VPEC0_MVP 1
206 #define CP0VPEC0_VPA 0
207 int32_t CP0_VPEConf1;
208 #define CP0VPEC1_NCX 20
209 #define CP0VPEC1_NCP2 10
210 #define CP0VPEC1_NCP1 0
211 target_ulong CP0_YQMask;
212 target_ulong CP0_VPESchedule;
213 target_ulong CP0_VPEScheFBack;
215 #define CP0VPEOpt_IWX7 15
216 #define CP0VPEOpt_IWX6 14
217 #define CP0VPEOpt_IWX5 13
218 #define CP0VPEOpt_IWX4 12
219 #define CP0VPEOpt_IWX3 11
220 #define CP0VPEOpt_IWX2 10
221 #define CP0VPEOpt_IWX1 9
222 #define CP0VPEOpt_IWX0 8
223 #define CP0VPEOpt_DWX7 7
224 #define CP0VPEOpt_DWX6 6
225 #define CP0VPEOpt_DWX5 5
226 #define CP0VPEOpt_DWX4 4
227 #define CP0VPEOpt_DWX3 3
228 #define CP0VPEOpt_DWX2 2
229 #define CP0VPEOpt_DWX1 1
230 #define CP0VPEOpt_DWX0 0
231 target_ulong CP0_EntryLo0;
232 target_ulong CP0_EntryLo1;
233 target_ulong CP0_Context;
234 int32_t CP0_PageMask;
235 int32_t CP0_PageGrain;
237 int32_t CP0_SRSConf0_rw_bitmask;
238 int32_t CP0_SRSConf0;
239 #define CP0SRSC0_M 31
240 #define CP0SRSC0_SRS3 20
241 #define CP0SRSC0_SRS2 10
242 #define CP0SRSC0_SRS1 0
243 int32_t CP0_SRSConf1_rw_bitmask;
244 int32_t CP0_SRSConf1;
245 #define CP0SRSC1_M 31
246 #define CP0SRSC1_SRS6 20
247 #define CP0SRSC1_SRS5 10
248 #define CP0SRSC1_SRS4 0
249 int32_t CP0_SRSConf2_rw_bitmask;
250 int32_t CP0_SRSConf2;
251 #define CP0SRSC2_M 31
252 #define CP0SRSC2_SRS9 20
253 #define CP0SRSC2_SRS8 10
254 #define CP0SRSC2_SRS7 0
255 int32_t CP0_SRSConf3_rw_bitmask;
256 int32_t CP0_SRSConf3;
257 #define CP0SRSC3_M 31
258 #define CP0SRSC3_SRS12 20
259 #define CP0SRSC3_SRS11 10
260 #define CP0SRSC3_SRS10 0
261 int32_t CP0_SRSConf4_rw_bitmask;
262 int32_t CP0_SRSConf4;
263 #define CP0SRSC4_SRS15 20
264 #define CP0SRSC4_SRS14 10
265 #define CP0SRSC4_SRS13 0
267 target_ulong CP0_BadVAddr;
269 target_ulong CP0_EntryHi;
294 #define CP0IntCtl_IPTI 29
295 #define CP0IntCtl_IPPC1 26
296 #define CP0IntCtl_VS 5
298 #define CP0SRSCtl_HSS 26
299 #define CP0SRSCtl_EICSS 18
300 #define CP0SRSCtl_ESS 12
301 #define CP0SRSCtl_PSS 6
302 #define CP0SRSCtl_CSS 0
304 #define CP0SRSMap_SSV7 28
305 #define CP0SRSMap_SSV6 24
306 #define CP0SRSMap_SSV5 20
307 #define CP0SRSMap_SSV4 16
308 #define CP0SRSMap_SSV3 12
309 #define CP0SRSMap_SSV2 8
310 #define CP0SRSMap_SSV1 4
311 #define CP0SRSMap_SSV0 0
321 #define CP0Ca_IP_mask 0x0000FF00
323 target_ulong CP0_EPC;
367 #define CP0C3_ISA_ON_EXC 16
368 #define CP0C3_DSPP 10
378 /* XXX: Maybe make LLAddr per-TC? */
381 target_ulong llnewval;
383 target_ulong CP0_LLAddr_rw_bitmask;
384 int CP0_LLAddr_shift;
385 target_ulong CP0_WatchLo[8];
386 int32_t CP0_WatchHi[8];
387 target_ulong CP0_XContext;
388 int32_t CP0_Framemask;
392 #define CP0DB_LSNM 28
393 #define CP0DB_Doze 27
394 #define CP0DB_Halt 26
396 #define CP0DB_IBEP 24
397 #define CP0DB_DBEP 21
398 #define CP0DB_IEXI 20
408 target_ulong CP0_DEPC;
409 int32_t CP0_Performance0;
414 target_ulong CP0_ErrorEPC;
416 /* We waste some space so we can handle shadow registers like TCs. */
417 TCState tcs[MIPS_SHADOW_SET_MAX];
418 CPUMIPSFPUContext fpus[MIPS_FPU_MAX];
421 uint32_t hflags; /* CPU State */
422 /* TMASK defines different execution modes */
423 #define MIPS_HFLAG_TMASK 0x007FF
424 #define MIPS_HFLAG_MODE 0x00007 /* execution modes */
425 /* The KSU flags must be the lowest bits in hflags. The flag order
426 must be the same as defined for CP0 Status. This allows to use
427 the bits as the value of mmu_idx. */
428 #define MIPS_HFLAG_KSU 0x00003 /* kernel/supervisor/user mode mask */
429 #define MIPS_HFLAG_UM 0x00002 /* user mode flag */
430 #define MIPS_HFLAG_SM 0x00001 /* supervisor mode flag */
431 #define MIPS_HFLAG_KM 0x00000 /* kernel mode flag */
432 #define MIPS_HFLAG_DM 0x00004 /* Debug mode */
433 #define MIPS_HFLAG_64 0x00008 /* 64-bit instructions enabled */
434 #define MIPS_HFLAG_CP0 0x00010 /* CP0 enabled */
435 #define MIPS_HFLAG_FPU 0x00020 /* FPU enabled */
436 #define MIPS_HFLAG_F64 0x00040 /* 64-bit FPU enabled */
437 /* True if the MIPS IV COP1X instructions can be used. This also
438 controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
440 #define MIPS_HFLAG_COP1X 0x00080 /* COP1X instructions enabled */
441 #define MIPS_HFLAG_RE 0x00100 /* Reversed endianness */
442 #define MIPS_HFLAG_UX 0x00200 /* 64-bit user mode */
443 #define MIPS_HFLAG_M16 0x00400 /* MIPS16 mode flag */
444 #define MIPS_HFLAG_M16_SHIFT 10
445 /* If translation is interrupted between the branch instruction and
446 * the delay slot, record what type of branch it is so that we can
447 * resume translation properly. It might be possible to reduce
448 * this from three bits to two. */
449 #define MIPS_HFLAG_BMASK_BASE 0x03800
450 #define MIPS_HFLAG_B 0x00800 /* Unconditional branch */
451 #define MIPS_HFLAG_BC 0x01000 /* Conditional branch */
452 #define MIPS_HFLAG_BL 0x01800 /* Likely branch */
453 #define MIPS_HFLAG_BR 0x02000 /* branch to register (can't link TB) */
454 /* Extra flags about the current pending branch. */
455 #define MIPS_HFLAG_BMASK_EXT 0x3C000
456 #define MIPS_HFLAG_B16 0x04000 /* branch instruction was 16 bits */
457 #define MIPS_HFLAG_BDS16 0x08000 /* branch requires 16-bit delay slot */
458 #define MIPS_HFLAG_BDS32 0x10000 /* branch requires 32-bit delay slot */
459 #define MIPS_HFLAG_BX 0x20000 /* branch exchanges execution mode */
460 #define MIPS_HFLAG_BMASK (MIPS_HFLAG_BMASK_BASE | MIPS_HFLAG_BMASK_EXT)
461 target_ulong btarget; /* Jump / branch target */
462 target_ulong bcond; /* Branch condition (if needed) */
464 int SYNCI_Step; /* Address step size for SYNCI */
465 int CCRes; /* Cycle count resolution/divisor */
466 uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
467 uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
468 int insn_flags; /* Supported instruction set */
470 target_ulong tls_value; /* For usermode emulation */
474 CPUMIPSMVPContext *mvp;
475 #if !defined(CONFIG_USER_ONLY)
476 CPUMIPSTLBContext *tlb;
479 const mips_def_t *cpu_model;
481 struct QEMUTimer *timer; /* Internal timer */
484 #if !defined(CONFIG_USER_ONLY)
485 int no_mmu_map_address (CPUMIPSState *env, target_phys_addr_t *physical, int *prot,
486 target_ulong address, int rw, int access_type);
487 int fixed_mmu_map_address (CPUMIPSState *env, target_phys_addr_t *physical, int *prot,
488 target_ulong address, int rw, int access_type);
489 int r4k_map_address (CPUMIPSState *env, target_phys_addr_t *physical, int *prot,
490 target_ulong address, int rw, int access_type);
491 void r4k_helper_tlbwi (void);
492 void r4k_helper_tlbwr (void);
493 void r4k_helper_tlbp (void);
494 void r4k_helper_tlbr (void);
496 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
497 int unused, int size);
500 void mips_cpu_list (FILE *f, fprintf_function cpu_fprintf);
502 #define cpu_init cpu_mips_init
503 #define cpu_exec cpu_mips_exec
504 #define cpu_gen_code cpu_mips_gen_code
505 #define cpu_signal_handler cpu_mips_signal_handler
506 #define cpu_list mips_cpu_list
508 #define CPU_SAVE_VERSION 3
510 /* MMU modes definitions. We carefully match the indices with our
512 #define MMU_MODE0_SUFFIX _kernel
513 #define MMU_MODE1_SUFFIX _super
514 #define MMU_MODE2_SUFFIX _user
515 #define MMU_USER_IDX 2
516 static inline int cpu_mmu_index (CPUState *env)
518 return env->hflags & MIPS_HFLAG_KSU;
521 static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
524 env->active_tc.gpr[29] = newsp;
525 env->active_tc.gpr[7] = 0;
526 env->active_tc.gpr[2] = 0;
529 static inline int cpu_mips_hw_interrupts_pending(CPUState *env)
535 if (!(env->CP0_Status & (1 << CP0St_IE)) ||
536 (env->CP0_Status & (1 << CP0St_EXL)) ||
537 (env->CP0_Status & (1 << CP0St_ERL)) ||
538 (env->hflags & MIPS_HFLAG_DM)) {
539 /* Interrupts are disabled */
543 pending = env->CP0_Cause & CP0Ca_IP_mask;
544 status = env->CP0_Status & CP0Ca_IP_mask;
546 if (env->CP0_Config3 & (1 << CP0C3_VEIC)) {
547 /* A MIPS configured with a vectorizing external interrupt controller
548 will feed a vector into the Cause pending lines. The core treats
549 the status lines as a vector level, not as indiviual masks. */
550 r = pending > status;
552 /* A MIPS configured with compatibility or VInt (Vectored Interrupts)
553 treats the pending lines as individual interrupt lines, the status
554 lines are individual masks. */
555 r = pending & status;
562 /* Memory access type :
563 * may be needed for precise access rights control and precise exceptions.
566 /* 1 bit to define user level / supervisor access */
569 /* 1 bit to indicate direction */
571 /* Type of instruction that generated the access */
572 ACCESS_CODE = 0x10, /* Code fetch access */
573 ACCESS_INT = 0x20, /* Integer load/store access */
574 ACCESS_FLOAT = 0x30, /* floating point load/store access */
588 EXCP_EXT_INTERRUPT, /* 8 */
604 EXCP_DWATCH, /* 24 */
614 EXCP_LAST = EXCP_CACHE,
616 /* Dummy exception for conditional stores. */
617 #define EXCP_SC 0x100
619 int cpu_mips_exec(CPUMIPSState *s);
620 CPUMIPSState *cpu_mips_init(const char *cpu_model);
621 //~ uint32_t cpu_mips_get_clock (void);
622 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
625 uint32_t cpu_mips_get_random (CPUState *env);
626 uint32_t cpu_mips_get_count (CPUState *env);
627 void cpu_mips_store_count (CPUState *env, uint32_t value);
628 void cpu_mips_store_compare (CPUState *env, uint32_t value);
629 void cpu_mips_start_count(CPUState *env);
630 void cpu_mips_stop_count(CPUState *env);
633 void cpu_mips_soft_irq(CPUState *env, int irq, int level);
636 int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
637 int mmu_idx, int is_softmmu);
638 #define cpu_handle_mmu_fault cpu_mips_handle_mmu_fault
639 void do_interrupt (CPUState *env);
640 #if !defined(CONFIG_USER_ONLY)
641 void r4k_invalidate_tlb (CPUState *env, int idx, int use_extra);
642 target_phys_addr_t cpu_mips_translate_address (CPUState *env, target_ulong address,
646 static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc,
647 target_ulong *cs_base, int *flags)
649 *pc = env->active_tc.PC;
651 *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK);
654 static inline void cpu_set_tls(CPUState *env, target_ulong newtls)
656 env->tls_value = newtls;
659 #endif /* !defined (__MIPS_CPU_H__) */