1#if !defined (__MIPS_CPU_H__)
2#define __MIPS_CPU_H__
3
4#define TARGET_HAS_ICE 1
5
6#define ELF_MACHINE	EM_MIPS
7
8#define CPUState struct CPUMIPSState
9
10#include "config.h"
11#include "mips-defs.h"
12#include "cpu-defs.h"
13#include "softfloat.h"
14
15// uint_fast8_t and uint_fast16_t not in <sys/int_types.h>
16// XXX: move that elsewhere
17#if defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10
18typedef unsigned char           uint_fast8_t;
19typedef unsigned int            uint_fast16_t;
20#endif
21
22struct CPUMIPSState;
23
24typedef struct r4k_tlb_t r4k_tlb_t;
25struct r4k_tlb_t {
26    target_ulong VPN;
27    uint32_t PageMask;
28    uint_fast8_t ASID;
29    uint_fast16_t G:1;
30    uint_fast16_t C0:3;
31    uint_fast16_t C1:3;
32    uint_fast16_t V0:1;
33    uint_fast16_t V1:1;
34    uint_fast16_t D0:1;
35    uint_fast16_t D1:1;
36    target_ulong PFN[2];
37};
38
39typedef struct CPUMIPSTLBContext CPUMIPSTLBContext;
40struct CPUMIPSTLBContext {
41    uint32_t nb_tlb;
42    uint32_t tlb_in_use;
43    int (*map_address) (struct CPUMIPSState *env, target_phys_addr_t *physical, int *prot, target_ulong address, int rw, int access_type);
44    void (*helper_tlbwi) (void);
45    void (*helper_tlbwr) (void);
46    void (*helper_tlbp) (void);
47    void (*helper_tlbr) (void);
48    union {
49        struct {
50            r4k_tlb_t tlb[MIPS_TLB_MAX];
51        } r4k;
52    } mmu;
53};
54
55typedef union fpr_t fpr_t;
56union fpr_t {
57    float64  fd;   /* ieee double precision */
58    float32  fs[2];/* ieee single precision */
59    uint64_t d;    /* binary double fixed-point */
60    uint32_t w[2]; /* binary single fixed-point */
61};
62/* define FP_ENDIAN_IDX to access the same location
63 * in the fpr_t union regardless of the host endianess
64 */
65#if defined(HOST_WORDS_BIGENDIAN)
66#  define FP_ENDIAN_IDX 1
67#else
68#  define FP_ENDIAN_IDX 0
69#endif
70
71typedef struct CPUMIPSFPUContext CPUMIPSFPUContext;
72struct CPUMIPSFPUContext {
73    /* Floating point registers */
74    fpr_t fpr[32];
75    float_status fp_status;
76    /* fpu implementation/revision register (fir) */
77    uint32_t fcr0;
78#define FCR0_F64 22
79#define FCR0_L 21
80#define FCR0_W 20
81#define FCR0_3D 19
82#define FCR0_PS 18
83#define FCR0_D 17
84#define FCR0_S 16
85#define FCR0_PRID 8
86#define FCR0_REV 0
87    /* fcsr */
88    uint32_t fcr31;
89#define SET_FP_COND(num,env)     do { ((env).fcr31) |= ((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0)
90#define CLEAR_FP_COND(num,env)   do { ((env).fcr31) &= ~((num) ? (1 << ((num) + 24)) : (1 << 23)); } while(0)
91#define GET_FP_COND(env)         ((((env).fcr31 >> 24) & 0xfe) | (((env).fcr31 >> 23) & 0x1))
92#define GET_FP_CAUSE(reg)        (((reg) >> 12) & 0x3f)
93#define GET_FP_ENABLE(reg)       (((reg) >>  7) & 0x1f)
94#define GET_FP_FLAGS(reg)        (((reg) >>  2) & 0x1f)
95#define SET_FP_CAUSE(reg,v)      do { (reg) = ((reg) & ~(0x3f << 12)) | ((v & 0x3f) << 12); } while(0)
96#define SET_FP_ENABLE(reg,v)     do { (reg) = ((reg) & ~(0x1f <<  7)) | ((v & 0x1f) << 7); } while(0)
97#define SET_FP_FLAGS(reg,v)      do { (reg) = ((reg) & ~(0x1f <<  2)) | ((v & 0x1f) << 2); } while(0)
98#define UPDATE_FP_FLAGS(reg,v)   do { (reg) |= ((v & 0x1f) << 2); } while(0)
99#define FP_INEXACT        1
100#define FP_UNDERFLOW      2
101#define FP_OVERFLOW       4
102#define FP_DIV0           8
103#define FP_INVALID        16
104#define FP_UNIMPLEMENTED  32
105};
106
107#define NB_MMU_MODES 3
108
109typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
110struct CPUMIPSMVPContext {
111    int32_t CP0_MVPControl;
112#define CP0MVPCo_CPA	3
113#define CP0MVPCo_STLB	2
114#define CP0MVPCo_VPC	1
115#define CP0MVPCo_EVP	0
116    int32_t CP0_MVPConf0;
117#define CP0MVPC0_M	31
118#define CP0MVPC0_TLBS	29
119#define CP0MVPC0_GS	28
120#define CP0MVPC0_PCP	27
121#define CP0MVPC0_PTLBE	16
122#define CP0MVPC0_TCA	15
123#define CP0MVPC0_PVPE	10
124#define CP0MVPC0_PTC	0
125    int32_t CP0_MVPConf1;
126#define CP0MVPC1_CIM	31
127#define CP0MVPC1_CIF	30
128#define CP0MVPC1_PCX	20
129#define CP0MVPC1_PCP2	10
130#define CP0MVPC1_PCP1	0
131};
132
133typedef struct mips_def_t mips_def_t;
134
135#define MIPS_SHADOW_SET_MAX 16
136#define MIPS_TC_MAX 5
137#define MIPS_FPU_MAX 1
138#define MIPS_DSP_ACC 4
139
140typedef struct TCState TCState;
141struct TCState {
142    target_ulong gpr[32];
143    target_ulong PC;
144    target_ulong HI[MIPS_DSP_ACC];
145    target_ulong LO[MIPS_DSP_ACC];
146    target_ulong ACX[MIPS_DSP_ACC];
147    target_ulong DSPControl;
148    int32_t CP0_TCStatus;
149#define CP0TCSt_TCU3	31
150#define CP0TCSt_TCU2	30
151#define CP0TCSt_TCU1	29
152#define CP0TCSt_TCU0	28
153#define CP0TCSt_TMX	27
154#define CP0TCSt_RNST	23
155#define CP0TCSt_TDS	21
156#define CP0TCSt_DT	20
157#define CP0TCSt_DA	15
158#define CP0TCSt_A	13
159#define CP0TCSt_TKSU	11
160#define CP0TCSt_IXMT	10
161#define CP0TCSt_TASID	0
162    int32_t CP0_TCBind;
163#define CP0TCBd_CurTC	21
164#define CP0TCBd_TBE	17
165#define CP0TCBd_CurVPE	0
166    target_ulong CP0_TCHalt;
167    target_ulong CP0_TCContext;
168    target_ulong CP0_TCSchedule;
169    target_ulong CP0_TCScheFBack;
170    int32_t CP0_Debug_tcstatus;
171};
172
173typedef struct CPUMIPSState CPUMIPSState;
174struct CPUMIPSState {
175    TCState active_tc;
176    CPUMIPSFPUContext active_fpu;
177
178    uint32_t current_tc;
179    uint32_t current_fpu;
180
181    uint32_t SEGBITS;
182    uint32_t PABITS;
183    target_ulong SEGMask;
184    target_ulong PAMask;
185
186    int32_t CP0_Index;
187    /* CP0_MVP* are per MVP registers. */
188    int32_t CP0_Random;
189    int32_t CP0_VPEControl;
190#define CP0VPECo_YSI	21
191#define CP0VPECo_GSI	20
192#define CP0VPECo_EXCPT	16
193#define CP0VPECo_TE	15
194#define CP0VPECo_TargTC	0
195    int32_t CP0_VPEConf0;
196#define CP0VPEC0_M	31
197#define CP0VPEC0_XTC	21
198#define CP0VPEC0_TCS	19
199#define CP0VPEC0_SCS	18
200#define CP0VPEC0_DSC	17
201#define CP0VPEC0_ICS	16
202#define CP0VPEC0_MVP	1
203#define CP0VPEC0_VPA	0
204    int32_t CP0_VPEConf1;
205#define CP0VPEC1_NCX	20
206#define CP0VPEC1_NCP2	10
207#define CP0VPEC1_NCP1	0
208    target_ulong CP0_YQMask;
209    target_ulong CP0_VPESchedule;
210    target_ulong CP0_VPEScheFBack;
211    int32_t CP0_VPEOpt;
212#define CP0VPEOpt_IWX7	15
213#define CP0VPEOpt_IWX6	14
214#define CP0VPEOpt_IWX5	13
215#define CP0VPEOpt_IWX4	12
216#define CP0VPEOpt_IWX3	11
217#define CP0VPEOpt_IWX2	10
218#define CP0VPEOpt_IWX1	9
219#define CP0VPEOpt_IWX0	8
220#define CP0VPEOpt_DWX7	7
221#define CP0VPEOpt_DWX6	6
222#define CP0VPEOpt_DWX5	5
223#define CP0VPEOpt_DWX4	4
224#define CP0VPEOpt_DWX3	3
225#define CP0VPEOpt_DWX2	2
226#define CP0VPEOpt_DWX1	1
227#define CP0VPEOpt_DWX0	0
228    target_ulong CP0_EntryLo0;
229    target_ulong CP0_EntryLo1;
230    target_ulong CP0_Context;
231    int32_t CP0_PageMask;
232    int32_t CP0_PageGrain;
233    int32_t CP0_Wired;
234    int32_t CP0_SRSConf0_rw_bitmask;
235    int32_t CP0_SRSConf0;
236#define CP0SRSC0_M	31
237#define CP0SRSC0_SRS3	20
238#define CP0SRSC0_SRS2	10
239#define CP0SRSC0_SRS1	0
240    int32_t CP0_SRSConf1_rw_bitmask;
241    int32_t CP0_SRSConf1;
242#define CP0SRSC1_M	31
243#define CP0SRSC1_SRS6	20
244#define CP0SRSC1_SRS5	10
245#define CP0SRSC1_SRS4	0
246    int32_t CP0_SRSConf2_rw_bitmask;
247    int32_t CP0_SRSConf2;
248#define CP0SRSC2_M	31
249#define CP0SRSC2_SRS9	20
250#define CP0SRSC2_SRS8	10
251#define CP0SRSC2_SRS7	0
252    int32_t CP0_SRSConf3_rw_bitmask;
253    int32_t CP0_SRSConf3;
254#define CP0SRSC3_M	31
255#define CP0SRSC3_SRS12	20
256#define CP0SRSC3_SRS11	10
257#define CP0SRSC3_SRS10	0
258    int32_t CP0_SRSConf4_rw_bitmask;
259    int32_t CP0_SRSConf4;
260#define CP0SRSC4_SRS15	20
261#define CP0SRSC4_SRS14	10
262#define CP0SRSC4_SRS13	0
263    int32_t CP0_HWREna;
264    target_ulong CP0_BadVAddr;
265    int32_t CP0_Count;
266    target_ulong CP0_EntryHi;
267    int32_t CP0_Compare;
268    int32_t CP0_Status;
269#define CP0St_CU3   31
270#define CP0St_CU2   30
271#define CP0St_CU1   29
272#define CP0St_CU0   28
273#define CP0St_RP    27
274#define CP0St_FR    26
275#define CP0St_RE    25
276#define CP0St_MX    24
277#define CP0St_PX    23
278#define CP0St_BEV   22
279#define CP0St_TS    21
280#define CP0St_SR    20
281#define CP0St_NMI   19
282#define CP0St_IM    8
283#define CP0St_KX    7
284#define CP0St_SX    6
285#define CP0St_UX    5
286#define CP0St_KSU   3
287#define CP0St_ERL   2
288#define CP0St_EXL   1
289#define CP0St_IE    0
290    int32_t CP0_IntCtl;
291#define CP0IntCtl_IPTI 29
292#define CP0IntCtl_IPPC1 26
293#define CP0IntCtl_VS 5
294    int32_t CP0_SRSCtl;
295#define CP0SRSCtl_HSS 26
296#define CP0SRSCtl_EICSS 18
297#define CP0SRSCtl_ESS 12
298#define CP0SRSCtl_PSS 6
299#define CP0SRSCtl_CSS 0
300    int32_t CP0_SRSMap;
301#define CP0SRSMap_SSV7 28
302#define CP0SRSMap_SSV6 24
303#define CP0SRSMap_SSV5 20
304#define CP0SRSMap_SSV4 16
305#define CP0SRSMap_SSV3 12
306#define CP0SRSMap_SSV2 8
307#define CP0SRSMap_SSV1 4
308#define CP0SRSMap_SSV0 0
309    int32_t CP0_Cause;
310#define CP0Ca_BD   31
311#define CP0Ca_TI   30
312#define CP0Ca_CE   28
313#define CP0Ca_DC   27
314#define CP0Ca_PCI  26
315#define CP0Ca_IV   23
316#define CP0Ca_WP   22
317#define CP0Ca_IP    8
318#define CP0Ca_IP_mask 0x0000FF00
319#define CP0Ca_EC    2
320    target_ulong CP0_EPC;
321    int32_t CP0_PRid;
322    int32_t CP0_EBase;
323    int32_t CP0_Config0;
324#define CP0C0_M    31
325#define CP0C0_K23  28
326#define CP0C0_KU   25
327#define CP0C0_MDU  20
328#define CP0C0_MM   17
329#define CP0C0_BM   16
330#define CP0C0_BE   15
331#define CP0C0_AT   13
332#define CP0C0_AR   10
333#define CP0C0_MT   7
334#define CP0C0_VI   3
335#define CP0C0_K0   0
336    int32_t CP0_Config1;
337#define CP0C1_M    31
338#define CP0C1_MMU  25
339#define CP0C1_IS   22
340#define CP0C1_IL   19
341#define CP0C1_IA   16
342#define CP0C1_DS   13
343#define CP0C1_DL   10
344#define CP0C1_DA   7
345#define CP0C1_C2   6
346#define CP0C1_MD   5
347#define CP0C1_PC   4
348#define CP0C1_WR   3
349#define CP0C1_CA   2
350#define CP0C1_EP   1
351#define CP0C1_FP   0
352    int32_t CP0_Config2;
353#define CP0C2_M    31
354#define CP0C2_TU   28
355#define CP0C2_TS   24
356#define CP0C2_TL   20
357#define CP0C2_TA   16
358#define CP0C2_SU   12
359#define CP0C2_SS   8
360#define CP0C2_SL   4
361#define CP0C2_SA   0
362    int32_t CP0_Config3;
363#define CP0C3_M    31
364#define CP0C3_DSPP 10
365#define CP0C3_LPA  7
366#define CP0C3_VEIC 6
367#define CP0C3_VInt 5
368#define CP0C3_SP   4
369#define CP0C3_MT   2
370#define CP0C3_SM   1
371#define CP0C3_TL   0
372    int32_t CP0_Config6;
373    int32_t CP0_Config7;
374    /* XXX: Maybe make LLAddr per-TC? */
375    target_ulong lladdr;
376    target_ulong llval;
377    target_ulong llnewval;
378    target_ulong llreg;
379    target_ulong CP0_LLAddr_rw_bitmask;
380    int CP0_LLAddr_shift;
381    target_ulong CP0_WatchLo[8];
382    int32_t CP0_WatchHi[8];
383    target_ulong CP0_XContext;
384    int32_t CP0_Framemask;
385    int32_t CP0_Debug;
386#define CP0DB_DBD  31
387#define CP0DB_DM   30
388#define CP0DB_LSNM 28
389#define CP0DB_Doze 27
390#define CP0DB_Halt 26
391#define CP0DB_CNT  25
392#define CP0DB_IBEP 24
393#define CP0DB_DBEP 21
394#define CP0DB_IEXI 20
395#define CP0DB_VER  15
396#define CP0DB_DEC  10
397#define CP0DB_SSt  8
398#define CP0DB_DINT 5
399#define CP0DB_DIB  4
400#define CP0DB_DDBS 3
401#define CP0DB_DDBL 2
402#define CP0DB_DBp  1
403#define CP0DB_DSS  0
404    target_ulong CP0_DEPC;
405    int32_t CP0_Performance0;
406    int32_t CP0_TagLo;
407    int32_t CP0_DataLo;
408    int32_t CP0_TagHi;
409    int32_t CP0_DataHi;
410    target_ulong CP0_ErrorEPC;
411    int32_t CP0_DESAVE;
412    /* We waste some space so we can handle shadow registers like TCs. */
413    TCState tcs[MIPS_SHADOW_SET_MAX];
414    CPUMIPSFPUContext fpus[MIPS_FPU_MAX];
415    /* Qemu */
416    int error_code;
417    uint32_t hflags;    /* CPU State */
418    /* TMASK defines different execution modes */
419#define MIPS_HFLAG_TMASK  0x03FF
420#define MIPS_HFLAG_MODE   0x0007 /* execution modes                    */
421    /* The KSU flags must be the lowest bits in hflags. The flag order
422       must be the same as defined for CP0 Status. This allows to use
423       the bits as the value of mmu_idx. */
424#define MIPS_HFLAG_KSU    0x0003 /* kernel/supervisor/user mode mask   */
425#define MIPS_HFLAG_UM       0x0002 /* user mode flag */
426#define MIPS_HFLAG_SM       0x0001 /* supervisor mode flag */
427#define MIPS_HFLAG_KM       0x0000 /* kernel mode flag */
428#define MIPS_HFLAG_DM     0x0004 /* Debug mode                         */
429#define MIPS_HFLAG_64     0x0008 /* 64-bit instructions enabled        */
430#define MIPS_HFLAG_CP0    0x0010 /* CP0 enabled                        */
431#define MIPS_HFLAG_FPU    0x0020 /* FPU enabled                        */
432#define MIPS_HFLAG_F64    0x0040 /* 64-bit FPU enabled                 */
433    /* True if the MIPS IV COP1X instructions can be used.  This also
434       controls the non-COP1X instructions RECIP.S, RECIP.D, RSQRT.S
435       and RSQRT.D.  */
436#define MIPS_HFLAG_COP1X  0x0080 /* COP1X instructions enabled         */
437#define MIPS_HFLAG_RE     0x0100 /* Reversed endianness                */
438#define MIPS_HFLAG_UX     0x0200 /* 64-bit user mode                   */
439    /* If translation is interrupted between the branch instruction and
440     * the delay slot, record what type of branch it is so that we can
441     * resume translation properly.  It might be possible to reduce
442     * this from three bits to two.  */
443#define MIPS_HFLAG_BMASK  0x1C00
444#define MIPS_HFLAG_B      0x0400 /* Unconditional branch               */
445#define MIPS_HFLAG_BC     0x0800 /* Conditional branch                 */
446#define MIPS_HFLAG_BL     0x0C00 /* Likely branch                      */
447#define MIPS_HFLAG_BR     0x1000 /* branch to register (can't link TB) */
448    target_ulong btarget;        /* Jump / branch target               */
449    target_ulong bcond;          /* Branch condition (if needed)       */
450
451    int SYNCI_Step; /* Address step size for SYNCI */
452    int CCRes; /* Cycle count resolution/divisor */
453    uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */
454    uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */
455    int insn_flags; /* Supported instruction set */
456
457    target_ulong tls_value; /* For usermode emulation */
458
459    CPU_COMMON
460
461    CPUMIPSMVPContext *mvp;
462    CPUMIPSTLBContext *tlb;
463
464    const mips_def_t *cpu_model;
465    void *irq[8];
466    struct QEMUTimer *timer; /* Internal timer */
467};
468
469int no_mmu_map_address (CPUMIPSState *env, target_phys_addr_t *physical, int *prot,
470                        target_ulong address, int rw, int access_type);
471int fixed_mmu_map_address (CPUMIPSState *env, target_phys_addr_t *physical, int *prot,
472                           target_ulong address, int rw, int access_type);
473int r4k_map_address (CPUMIPSState *env, target_phys_addr_t *physical, int *prot,
474                     target_ulong address, int rw, int access_type);
475void r4k_helper_tlbwi (void);
476void r4k_helper_tlbwr (void);
477void r4k_helper_tlbp (void);
478void r4k_helper_tlbr (void);
479void mips_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
480
481void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
482                          int unused, int size);
483
484#define cpu_init cpu_mips_init
485#define cpu_exec cpu_mips_exec
486#define cpu_gen_code cpu_mips_gen_code
487#define cpu_signal_handler cpu_mips_signal_handler
488#define cpu_list mips_cpu_list
489
490#define CPU_SAVE_VERSION 3
491
492/* MMU modes definitions. We carefully match the indices with our
493   hflags layout. */
494#define MMU_MODE0_SUFFIX _kernel
495#define MMU_MODE1_SUFFIX _super
496#define MMU_MODE2_SUFFIX _user
497#define MMU_USER_IDX 2
498static inline int cpu_mmu_index (CPUState *env)
499{
500    return env->hflags & MIPS_HFLAG_KSU;
501}
502
503static inline int is_cpu_user (CPUState *env)
504{
505#ifdef CONFIG_USER_ONLY
506    return 1;
507#else
508    return ((env->CP0_Status &
509	     ((3 << CP0St_KSU) | (1 << CP0St_ERL) | (1 << CP0St_EXL))) == (3 << CP0St_KSU));
510#endif  // CONFIG_USER_ONLY
511}
512
513static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
514{
515    if (newsp)
516        env->active_tc.gpr[29] = newsp;
517    env->active_tc.gpr[7] = 0;
518    env->active_tc.gpr[2] = 0;
519}
520
521#include "cpu-all.h"
522#include "exec-all.h"
523
524/* Memory access type :
525 * may be needed for precise access rights control and precise exceptions.
526 */
527enum {
528    /* 1 bit to define user level / supervisor access */
529    ACCESS_USER  = 0x00,
530    ACCESS_SUPER = 0x01,
531    /* 1 bit to indicate direction */
532    ACCESS_STORE = 0x02,
533    /* Type of instruction that generated the access */
534    ACCESS_CODE  = 0x10, /* Code fetch access                */
535    ACCESS_INT   = 0x20, /* Integer load/store access        */
536    ACCESS_FLOAT = 0x30, /* floating point load/store access */
537};
538
539/* Exceptions */
540enum {
541    EXCP_NONE          = -1,
542    EXCP_RESET         = 0,
543    EXCP_SRESET,
544    EXCP_DSS,
545    EXCP_DINT,
546    EXCP_DDBL,
547    EXCP_DDBS,
548    EXCP_NMI,
549    EXCP_MCHECK,
550    EXCP_EXT_INTERRUPT, /* 8 */
551    EXCP_DFWATCH,
552    EXCP_DIB,
553    EXCP_IWATCH,
554    EXCP_AdEL,
555    EXCP_AdES,
556    EXCP_TLBF,
557    EXCP_IBE,
558    EXCP_DBp, /* 16 */
559    EXCP_SYSCALL,
560    EXCP_BREAK,
561    EXCP_CpU,
562    EXCP_RI,
563    EXCP_OVERFLOW,
564    EXCP_TRAP,
565    EXCP_FPE,
566    EXCP_DWATCH, /* 24 */
567    EXCP_LTLBL,
568    EXCP_TLBL,
569    EXCP_TLBS,
570    EXCP_DBE,
571    EXCP_THREAD,
572    EXCP_MDMX,
573    EXCP_C2E,
574    EXCP_CACHE, /* 32 */
575
576    EXCP_LAST = EXCP_CACHE,
577};
578/* Dummy exception for conditional stores.  */
579#define EXCP_SC 0x100
580
581int cpu_mips_exec(CPUMIPSState *s);
582CPUMIPSState *cpu_mips_init(const char *cpu_model);
583//~ uint32_t cpu_mips_get_clock (void);
584int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
585
586/* mips_timer.c */
587uint32_t cpu_mips_get_random (CPUState *env);
588uint32_t cpu_mips_get_count (CPUState *env);
589void cpu_mips_store_count (CPUState *env, uint32_t value);
590void cpu_mips_store_compare (CPUState *env, uint32_t value);
591void cpu_mips_start_count(CPUState *env);
592void cpu_mips_stop_count(CPUState *env);
593
594/* mips_int.c */
595void cpu_mips_update_irq (CPUState *env);
596
597/* helper.c */
598int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
599                               int mmu_idx, int is_softmmu);
600#define cpu_handle_mmu_fault cpu_mips_handle_mmu_fault
601void do_interrupt (CPUState *env);
602void r4k_invalidate_tlb (CPUState *env, int idx, int use_extra);
603target_phys_addr_t cpu_mips_translate_address (CPUState *env, target_ulong address,
604		                               int rw);
605
606static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb)
607{
608    env->active_tc.PC = tb->pc;
609    env->hflags &= ~MIPS_HFLAG_BMASK;
610    env->hflags |= tb->flags & MIPS_HFLAG_BMASK;
611}
612
613static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc,
614                                        target_ulong *cs_base, int *flags)
615{
616    *pc = env->active_tc.PC;
617    *cs_base = 0;
618    *flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK);
619}
620
621static inline void cpu_set_tls(CPUState *env, target_ulong newtls)
622{
623    env->tls_value = newtls;
624}
625
626#endif /* !defined (__MIPS_CPU_H__) */
627