1 #if !defined (__MIPS_CPU_H__)
4 #define TARGET_HAS_ICE 1
6 #define ELF_MACHINE EM_MIPS
11 #include "softfloat.h"
13 // uint_fast8_t and uint_fast16_t not in <sys/int_types.h>
14 // XXX: move that elsewhere
15 #if defined(HOST_SOLARIS) && HOST_SOLARIS < 10
16 typedef unsigned char uint_fast8_t;
17 typedef unsigned int uint_fast16_t;
22 typedef struct r4k_tlb_t r4k_tlb_t;
37 typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
38 struct CPUMIPSTLBContext {
41 int (*map_address) (struct CPUMIPSState *env, target_ulong *physical, int *prot, target_ulong address, int rw, int access_type);
42 void (*do_tlbwi) (void);
43 void (*do_tlbwr) (void);
44 void (*do_tlbp) (void);
45 void (*do_tlbr) (void);
48 r4k_tlb_t tlb[MIPS_TLB_MAX];
53 typedef union fpr_t fpr_t;
55 float64 fd; /* ieee double precision */
56 float32 fs[2];/* ieee single precision */
57 uint64_t d; /* binary double fixed-point */
58 uint32_t w[2]; /* binary single fixed-point */
60 /* define FP_ENDIAN_IDX to access the same location
61 * in the fpr_t union regardless of the host endianess
63 #if defined(WORDS_BIGENDIAN)
64 # define FP_ENDIAN_IDX 1
66 # define FP_ENDIAN_IDX 0
69 typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
70 struct CPUMIPSFPUContext {
71 /* Floating point registers */
73 #ifndef USE_HOST_FLOAT_REGS
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_DSP_ACC 4
142 typedef struct CPUMIPSState CPUMIPSState;
143 struct CPUMIPSState {
144 /* General integer registers */
145 target_ulong gpr[32][MIPS_SHADOW_SET_MAX];
146 /* Special registers */
147 target_ulong PC[MIPS_TC_MAX];
148 #if TARGET_LONG_BITS > HOST_LONG_BITS
153 target_ulong HI[MIPS_DSP_ACC][MIPS_TC_MAX];
154 target_ulong LO[MIPS_DSP_ACC][MIPS_TC_MAX];
155 target_ulong ACX[MIPS_DSP_ACC][MIPS_TC_MAX];
156 target_ulong DSPControl[MIPS_TC_MAX];
158 CPUMIPSMVPContext *mvp;
159 CPUMIPSTLBContext *tlb;
160 CPUMIPSFPUContext *fpu;
164 target_ulong SEGMask;
167 /* CP0_MVP* are per MVP registers. */
169 int32_t CP0_VPEControl;
170 #define CP0VPECo_YSI 21
171 #define CP0VPECo_GSI 20
172 #define CP0VPECo_EXCPT 16
173 #define CP0VPECo_TE 15
174 #define CP0VPECo_TargTC 0
175 int32_t CP0_VPEConf0;
176 #define CP0VPEC0_M 31
177 #define CP0VPEC0_XTC 21
178 #define CP0VPEC0_TCS 19
179 #define CP0VPEC0_SCS 18
180 #define CP0VPEC0_DSC 17
181 #define CP0VPEC0_ICS 16
182 #define CP0VPEC0_MVP 1
183 #define CP0VPEC0_VPA 0
184 int32_t CP0_VPEConf1;
185 #define CP0VPEC1_NCX 20
186 #define CP0VPEC1_NCP2 10
187 #define CP0VPEC1_NCP1 0
188 target_ulong CP0_YQMask;
189 target_ulong CP0_VPESchedule;
190 target_ulong CP0_VPEScheFBack;
192 #define CP0VPEOpt_IWX7 15
193 #define CP0VPEOpt_IWX6 14
194 #define CP0VPEOpt_IWX5 13
195 #define CP0VPEOpt_IWX4 12
196 #define CP0VPEOpt_IWX3 11
197 #define CP0VPEOpt_IWX2 10
198 #define CP0VPEOpt_IWX1 9
199 #define CP0VPEOpt_IWX0 8
200 #define CP0VPEOpt_DWX7 7
201 #define CP0VPEOpt_DWX6 6
202 #define CP0VPEOpt_DWX5 5
203 #define CP0VPEOpt_DWX4 4
204 #define CP0VPEOpt_DWX3 3
205 #define CP0VPEOpt_DWX2 2
206 #define CP0VPEOpt_DWX1 1
207 #define CP0VPEOpt_DWX0 0
208 target_ulong CP0_EntryLo0;
209 int32_t CP0_TCStatus[MIPS_TC_MAX];
210 #define CP0TCSt_TCU3 31
211 #define CP0TCSt_TCU2 30
212 #define CP0TCSt_TCU1 29
213 #define CP0TCSt_TCU0 28
214 #define CP0TCSt_TMX 27
215 #define CP0TCSt_RNST 23
216 #define CP0TCSt_TDS 21
217 #define CP0TCSt_DT 20
218 #define CP0TCSt_DA 15
220 #define CP0TCSt_TKSU 11
221 #define CP0TCSt_IXMT 10
222 #define CP0TCSt_TASID 0
223 int32_t CP0_TCBind[MIPS_TC_MAX];
224 #define CP0TCBd_CurTC 21
225 #define CP0TCBd_TBE 17
226 #define CP0TCBd_CurVPE 0
227 target_ulong CP0_TCHalt[MIPS_TC_MAX];
228 target_ulong CP0_TCContext[MIPS_TC_MAX];
229 target_ulong CP0_TCSchedule[MIPS_TC_MAX];
230 target_ulong CP0_TCScheFBack[MIPS_TC_MAX];
231 target_ulong CP0_EntryLo1;
232 target_ulong CP0_Context;
233 int32_t CP0_PageMask;
234 int32_t CP0_PageGrain;
236 int32_t CP0_SRSConf0_rw_bitmask;
237 int32_t CP0_SRSConf0;
238 #define CP0SRSC0_M 31
239 #define CP0SRSC0_SRS3 20
240 #define CP0SRSC0_SRS2 10
241 #define CP0SRSC0_SRS1 0
242 int32_t CP0_SRSConf1_rw_bitmask;
243 int32_t CP0_SRSConf1;
244 #define CP0SRSC1_M 31
245 #define CP0SRSC1_SRS6 20
246 #define CP0SRSC1_SRS5 10
247 #define CP0SRSC1_SRS4 0
248 int32_t CP0_SRSConf2_rw_bitmask;
249 int32_t CP0_SRSConf2;
250 #define CP0SRSC2_M 31
251 #define CP0SRSC2_SRS9 20
252 #define CP0SRSC2_SRS8 10
253 #define CP0SRSC2_SRS7 0
254 int32_t CP0_SRSConf3_rw_bitmask;
255 int32_t CP0_SRSConf3;
256 #define CP0SRSC3_M 31
257 #define CP0SRSC3_SRS12 20
258 #define CP0SRSC3_SRS11 10
259 #define CP0SRSC3_SRS10 0
260 int32_t CP0_SRSConf4_rw_bitmask;
261 int32_t CP0_SRSConf4;
262 #define CP0SRSC4_SRS15 20
263 #define CP0SRSC4_SRS14 10
264 #define CP0SRSC4_SRS13 0
266 target_ulong CP0_BadVAddr;
268 target_ulong CP0_EntryHi;
293 #define CP0IntCtl_IPTI 29
294 #define CP0IntCtl_IPPC1 26
295 #define CP0IntCtl_VS 5
297 #define CP0SRSCtl_HSS 26
298 #define CP0SRSCtl_EICSS 18
299 #define CP0SRSCtl_ESS 12
300 #define CP0SRSCtl_PSS 6
301 #define CP0SRSCtl_CSS 0
303 #define CP0SRSMap_SSV7 28
304 #define CP0SRSMap_SSV6 24
305 #define CP0SRSMap_SSV5 20
306 #define CP0SRSMap_SSV4 16
307 #define CP0SRSMap_SSV3 12
308 #define CP0SRSMap_SSV2 8
309 #define CP0SRSMap_SSV1 4
310 #define CP0SRSMap_SSV0 0
320 #define CP0Ca_IP_mask 0x0000FF00
322 target_ulong CP0_EPC;
366 #define CP0C3_DSPP 10
376 /* XXX: Maybe make LLAddr per-TC? */
377 target_ulong CP0_LLAddr;
378 target_ulong CP0_WatchLo[8];
379 int32_t CP0_WatchHi[8];
380 target_ulong CP0_XContext;
381 int32_t CP0_Framemask;
385 #define CP0DB_LSNM 28
386 #define CP0DB_Doze 27
387 #define CP0DB_Halt 26
389 #define CP0DB_IBEP 24
390 #define CP0DB_DBEP 21
391 #define CP0DB_IEXI 20
401 int32_t CP0_Debug_tcstatus[MIPS_TC_MAX];
402 target_ulong CP0_DEPC;
403 int32_t CP0_Performance0;
408 target_ulong CP0_ErrorEPC;
411 int interrupt_request;
415 int user_mode_only; /* user mode only simulation */
416 uint32_t hflags; /* CPU State */
417 /* TMASK defines different execution modes */
418 #define MIPS_HFLAG_TMASK 0x00FF
419 #define MIPS_HFLAG_MODE 0x0007 /* execution modes */
420 /* The KSU flags must be the lowest bits in hflags. The flag order
421 must be the same as defined for CP0 Status. This allows to use
422 the bits as the value of mmu_idx. */
423 #define MIPS_HFLAG_KSU 0x0003 /* kernel/supervisor/user mode mask */
424 #define MIPS_HFLAG_UM 0x0002 /* user mode flag */
425 #define MIPS_HFLAG_SM 0x0001 /* supervisor mode flag */
426 #define MIPS_HFLAG_KM 0x0000 /* kernel mode flag */
427 #define MIPS_HFLAG_DM 0x0004 /* Debug mode */
428 #define MIPS_HFLAG_64 0x0008 /* 64-bit instructions enabled */
429 #define MIPS_HFLAG_CP0 0x0010 /* CP0 enabled */
430 #define MIPS_HFLAG_FPU 0x0020 /* FPU enabled */
431 #define MIPS_HFLAG_F64 0x0040 /* 64-bit FPU enabled */
432 #define MIPS_HFLAG_RE 0x0080 /* Reversed endianness */
433 /* If translation is interrupted between the branch instruction and
434 * the delay slot, record what type of branch it is so that we can
435 * resume translation properly. It might be possible to reduce
436 * this from three bits to two. */
437 #define MIPS_HFLAG_BMASK 0x0700
438 #define MIPS_HFLAG_B 0x0100 /* Unconditional branch */
439 #define MIPS_HFLAG_BC 0x0200 /* Conditional branch */
440 #define MIPS_HFLAG_BL 0x0300 /* Likely branch */
441 #define MIPS_HFLAG_BR 0x0400 /* branch to register (can't link TB) */
442 target_ulong btarget; /* Jump / branch target */
443 int bcond; /* Branch condition (if needed) */
445 int halted; /* TRUE if the CPU is in suspend state */
447 int SYNCI_Step; /* Address step size for SYNCI */
448 int CCRes; /* Cycle count resolution/divisor */
449 uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
450 uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
451 int insn_flags; /* Supported instruction set */
453 #ifdef CONFIG_USER_ONLY
454 target_ulong tls_value;
459 const mips_def_t *cpu_model;
460 #ifndef CONFIG_USER_ONLY
464 struct QEMUTimer *timer; /* Internal timer */
467 int no_mmu_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
468 target_ulong address, int rw, int access_type);
469 int fixed_mmu_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
470 target_ulong address, int rw, int access_type);
471 int r4k_map_address (CPUMIPSState *env, target_ulong *physical, int *prot,
472 target_ulong address, int rw, int access_type);
473 void r4k_do_tlbwi (void);
474 void r4k_do_tlbwr (void);
475 void r4k_do_tlbp (void);
476 void r4k_do_tlbr (void);
477 void mips_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
479 void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
482 #define CPUState CPUMIPSState
483 #define cpu_init cpu_mips_init
484 #define cpu_exec cpu_mips_exec
485 #define cpu_gen_code cpu_mips_gen_code
486 #define cpu_signal_handler cpu_mips_signal_handler
487 #define cpu_list mips_cpu_list
489 /* MMU modes definitions. We carefully match the indices with our
491 #define MMU_MODE0_SUFFIX _kernel
492 #define MMU_MODE1_SUFFIX _super
493 #define MMU_MODE2_SUFFIX _user
494 #define MMU_USER_IDX 2
495 static inline int cpu_mmu_index (CPUState *env)
497 return env->hflags & MIPS_HFLAG_KSU;
502 /* Memory access type :
503 * may be needed for precise access rights control and precise exceptions.
506 /* 1 bit to define user level / supervisor access */
509 /* 1 bit to indicate direction */
511 /* Type of instruction that generated the access */
512 ACCESS_CODE = 0x10, /* Code fetch access */
513 ACCESS_INT = 0x20, /* Integer load/store access */
514 ACCESS_FLOAT = 0x30, /* floating point load/store access */
552 EXCP_MTCP0 = 0x104, /* mtmsr instruction: */
553 /* may change privilege level */
554 EXCP_BRANCH = 0x108, /* branch instruction */
555 EXCP_ERET = 0x10C, /* return from interrupt */
556 EXCP_SYSCALL_USER = 0x110, /* System call in user mode only */
560 int cpu_mips_exec(CPUMIPSState *s);
561 CPUMIPSState *cpu_mips_init(const char *cpu_model);
562 uint32_t cpu_mips_get_clock (void);
563 int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
565 #endif /* !defined (__MIPS_CPU_H__) */