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Fix buffer mux handling for unconnected serial ports
[qemu.git] / target-sparc / cpu.h
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1#ifndef CPU_SPARC_H
2#define CPU_SPARC_H
3
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4#include "config.h"
5
6#if !defined(TARGET_SPARC64)
3cf1e035 7#define TARGET_LONG_BITS 32
af7bf89b 8#define TARGET_FPREGS 32
83469015 9#define TARGET_PAGE_BITS 12 /* 4k */
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10#else
11#define TARGET_LONG_BITS 64
12#define TARGET_FPREGS 64
33b37802 13#define TARGET_PAGE_BITS 13 /* 8k */
af7bf89b 14#endif
3cf1e035 15
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16#define TARGET_PHYS_ADDR_BITS 64
17
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18#include "cpu-defs.h"
19
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20#include "softfloat.h"
21
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22#define TARGET_HAS_ICE 1
23
9042c0e2 24#if !defined(TARGET_SPARC64)
0f8a249a 25#define ELF_MACHINE EM_SPARC
9042c0e2 26#else
0f8a249a 27#define ELF_MACHINE EM_SPARCV9
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28#endif
29
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30/*#define EXCP_INTERRUPT 0x100*/
31
cf495bcf 32/* trap definitions */
3475187d 33#ifndef TARGET_SPARC64
878d3096 34#define TT_TFAULT 0x01
cf495bcf 35#define TT_ILL_INSN 0x02
e8af50a3 36#define TT_PRIV_INSN 0x03
e80cfcfc 37#define TT_NFPU_INSN 0x04
cf495bcf 38#define TT_WIN_OVF 0x05
5fafdf24 39#define TT_WIN_UNF 0x06
d2889a3e 40#define TT_UNALIGNED 0x07
e8af50a3 41#define TT_FP_EXCP 0x08
878d3096 42#define TT_DFAULT 0x09
e32f879d 43#define TT_TOVF 0x0a
878d3096 44#define TT_EXTINT 0x10
1b2e93c1 45#define TT_CODE_ACCESS 0x21
b4f0a316 46#define TT_DATA_ACCESS 0x29
cf495bcf 47#define TT_DIV_ZERO 0x2a
fcc72045 48#define TT_NCP_INSN 0x24
cf495bcf 49#define TT_TRAP 0x80
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50#else
51#define TT_TFAULT 0x08
83469015 52#define TT_TMISS 0x09
1b2e93c1 53#define TT_CODE_ACCESS 0x0a
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54#define TT_ILL_INSN 0x10
55#define TT_PRIV_INSN 0x11
56#define TT_NFPU_INSN 0x20
57#define TT_FP_EXCP 0x21
e32f879d 58#define TT_TOVF 0x23
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59#define TT_CLRWIN 0x24
60#define TT_DIV_ZERO 0x28
61#define TT_DFAULT 0x30
83469015 62#define TT_DMISS 0x31
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63#define TT_DATA_ACCESS 0x32
64#define TT_DPROT 0x33
d2889a3e 65#define TT_UNALIGNED 0x34
83469015 66#define TT_PRIV_ACT 0x37
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67#define TT_EXTINT 0x40
68#define TT_SPILL 0x80
69#define TT_FILL 0xc0
70#define TT_WOTHER 0x10
71#define TT_TRAP 0x100
72#endif
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73
74#define PSR_NEG (1<<23)
75#define PSR_ZERO (1<<22)
76#define PSR_OVF (1<<21)
77#define PSR_CARRY (1<<20)
e8af50a3 78#define PSR_ICC (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
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79#define PSR_EF (1<<12)
80#define PSR_PIL 0xf00
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81#define PSR_S (1<<7)
82#define PSR_PS (1<<6)
83#define PSR_ET (1<<5)
84#define PSR_CWP 0x1f
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85
86/* Trap base register */
87#define TBR_BASE_MASK 0xfffff000
88
3475187d 89#if defined(TARGET_SPARC64)
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90#define PS_IG (1<<11)
91#define PS_MG (1<<10)
6ef905f6 92#define PS_RMO (1<<7)
83469015 93#define PS_RED (1<<5)
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94#define PS_PEF (1<<4)
95#define PS_AM (1<<3)
96#define PS_PRIV (1<<2)
97#define PS_IE (1<<1)
83469015 98#define PS_AG (1<<0)
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99
100#define FPRS_FEF (1<<2)
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101
102#define HS_PRIV (1<<2)
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103#endif
104
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105/* Fcc */
106#define FSR_RD1 (1<<31)
107#define FSR_RD0 (1<<30)
108#define FSR_RD_MASK (FSR_RD1 | FSR_RD0)
109#define FSR_RD_NEAREST 0
110#define FSR_RD_ZERO FSR_RD0
111#define FSR_RD_POS FSR_RD1
112#define FSR_RD_NEG (FSR_RD1 | FSR_RD0)
113
114#define FSR_NVM (1<<27)
115#define FSR_OFM (1<<26)
116#define FSR_UFM (1<<25)
117#define FSR_DZM (1<<24)
118#define FSR_NXM (1<<23)
119#define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)
120
121#define FSR_NVA (1<<9)
122#define FSR_OFA (1<<8)
123#define FSR_UFA (1<<7)
124#define FSR_DZA (1<<6)
125#define FSR_NXA (1<<5)
126#define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)
127
128#define FSR_NVC (1<<4)
129#define FSR_OFC (1<<3)
130#define FSR_UFC (1<<2)
131#define FSR_DZC (1<<1)
132#define FSR_NXC (1<<0)
133#define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)
134
135#define FSR_FTT2 (1<<16)
136#define FSR_FTT1 (1<<15)
137#define FSR_FTT0 (1<<14)
138#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
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139#define FSR_FTT_IEEE_EXCP (1 << 14)
140#define FSR_FTT_UNIMPFPOP (3 << 14)
9143e598 141#define FSR_FTT_SEQ_ERROR (4 << 14)
e80cfcfc 142#define FSR_FTT_INVAL_FPR (6 << 14)
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143
144#define FSR_FCC1 (1<<11)
145#define FSR_FCC0 (1<<10)
146
147/* MMU */
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148#define MMU_E (1<<0)
149#define MMU_NF (1<<1)
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150
151#define PTE_ENTRYTYPE_MASK 3
152#define PTE_ACCESS_MASK 0x1c
153#define PTE_ACCESS_SHIFT 2
8d5f07fa 154#define PTE_PPN_SHIFT 7
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155#define PTE_ADDR_MASK 0xffffff00
156
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157#define PG_ACCESSED_BIT 5
158#define PG_MODIFIED_BIT 6
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159#define PG_CACHE_BIT 7
160
161#define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
162#define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
163#define PG_CACHE_MASK (1 << PG_CACHE_BIT)
164
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165/* 2 <= NWINDOWS <= 32. In QEMU it must also be a power of two. */
166#define NWINDOWS 8
cf495bcf 167
6f27aba6 168#if !defined(TARGET_SPARC64)
6ebbf390 169#define NB_MMU_MODES 2
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170#else
171#define NB_MMU_MODES 3
172#endif
6ebbf390 173
7a3f1944 174typedef struct CPUSPARCState {
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175 target_ulong gregs[8]; /* general registers */
176 target_ulong *regwptr; /* pointer to current register window */
65ce8c2f 177 float32 fpr[TARGET_FPREGS]; /* floating point registers */
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178 target_ulong pc; /* program counter */
179 target_ulong npc; /* next program counter */
180 target_ulong y; /* multiply/divide register */
cf495bcf 181 uint32_t psr; /* processor state register */
3475187d 182 target_ulong fsr; /* FPU state register */
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183 uint32_t cwp; /* index of current register window (extracted
184 from PSR) */
185 uint32_t wim; /* window invalid mask */
3475187d 186 target_ulong tbr; /* trap base register */
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187 int psrs; /* supervisor mode (extracted from PSR) */
188 int psrps; /* previous supervisor mode */
189 int psret; /* enable traps */
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190 uint32_t psrpil; /* interrupt blocking level */
191 uint32_t pil_in; /* incoming interrupt level bitmap */
e80cfcfc 192 int psref; /* enable fpu */
62724a37 193 target_ulong version;
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194 jmp_buf jmp_env;
195 int user_mode_only;
196 int exception_index;
197 int interrupt_index;
198 int interrupt_request;
ba3c64fb 199 int halted;
6d5f237a 200 uint32_t mmu_bm;
cf495bcf 201 /* NOTE: we allow 8 more registers to handle wrapping */
af7bf89b 202 target_ulong regbase[NWINDOWS * 16 + 8];
d720b93d 203
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204 CPU_COMMON
205
e8af50a3 206 /* MMU regs */
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207#if defined(TARGET_SPARC64)
208 uint64_t lsu;
209#define DMMU_E 0x8
210#define IMMU_E 0x4
211 uint64_t immuregs[16];
212 uint64_t dmmuregs[16];
213 uint64_t itlb_tag[64];
214 uint64_t itlb_tte[64];
215 uint64_t dtlb_tag[64];
216 uint64_t dtlb_tte[64];
217#else
e8af50a3 218 uint32_t mmuregs[16];
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219 uint64_t mxccdata[4];
220 uint64_t mxccregs[8];
3475187d 221#endif
e8af50a3 222 /* temporary float registers */
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223 float32 ft0, ft1;
224 float64 dt0, dt1;
7a0e1f41 225 float_status fp_status;
af7bf89b 226#if defined(TARGET_SPARC64)
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227#define MAXTL 4
228 uint64_t t0, t1, t2;
229 uint64_t tpc[MAXTL];
230 uint64_t tnpc[MAXTL];
231 uint64_t tstate[MAXTL];
232 uint32_t tt[MAXTL];
0f8a249a 233 uint32_t xcc; /* Extended integer condition codes */
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234 uint32_t asi;
235 uint32_t pstate;
236 uint32_t tl;
237 uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
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238 uint64_t agregs[8]; /* alternate general registers */
239 uint64_t bgregs[8]; /* backup for normal global registers */
240 uint64_t igregs[8]; /* interrupt general registers */
241 uint64_t mgregs[8]; /* mmu general registers */
3475187d 242 uint64_t fprs;
83469015 243 uint64_t tick_cmpr, stick_cmpr;
20c9f095 244 void *tick, *stick;
725cb90b 245 uint64_t gsr;
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246 uint32_t gl; // UA2005
247 /* UA 2005 hyperprivileged registers */
248 uint64_t hpstate, htstate[MAXTL], hintp, htba, hver, hstick_cmpr, ssr;
20c9f095 249 void *hstick; // UA 2005
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250#endif
251#if !defined(TARGET_SPARC64) && !defined(reg_T2)
252 target_ulong t2;
af7bf89b 253#endif
7a3f1944 254} CPUSPARCState;
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255#if defined(TARGET_SPARC64)
256#define GET_FSR32(env) (env->fsr & 0xcfc1ffff)
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257#define PUT_FSR32(env, val) do { uint32_t _tmp = val; \
258 env->fsr = (_tmp & 0xcfc1c3ff) | (env->fsr & 0x3f00000000ULL); \
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259 } while (0)
260#define GET_FSR64(env) (env->fsr & 0x3fcfc1ffffULL)
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261#define PUT_FSR64(env, val) do { uint64_t _tmp = val; \
262 env->fsr = _tmp & 0x3fcfc1c3ffULL; \
3475187d 263 } while (0)
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264#else
265#define GET_FSR32(env) (env->fsr)
3e736bf4 266#define PUT_FSR32(env, val) do { uint32_t _tmp = val; \
9143e598 267 env->fsr = (_tmp & 0xcfc1dfff) | (env->fsr & 0x000e0000); \
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268 } while (0)
269#endif
7a3f1944 270
aaed909a 271CPUSPARCState *cpu_sparc_init(const char *cpu_model);
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272int cpu_sparc_exec(CPUSPARCState *s);
273int cpu_sparc_close(CPUSPARCState *s);
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274void sparc_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt,
275 ...));
aaed909a 276void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu);
7a3f1944 277
62724a37 278#define GET_PSR(env) (env->version | (env->psr & PSR_ICC) | \
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279 (env->psref? PSR_EF : 0) | \
280 (env->psrpil << 8) | \
281 (env->psrs? PSR_S : 0) | \
282 (env->psrps? PSR_PS : 0) | \
283 (env->psret? PSR_ET : 0) | env->cwp)
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284
285#ifndef NO_CPU_IO_DEFS
286void cpu_set_cwp(CPUSPARCState *env1, int new_cwp);
287#endif
288
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289#define PUT_PSR(env, val) do { int _tmp = val; \
290 env->psr = _tmp & PSR_ICC; \
291 env->psref = (_tmp & PSR_EF)? 1 : 0; \
292 env->psrpil = (_tmp & PSR_PIL) >> 8; \
293 env->psrs = (_tmp & PSR_S)? 1 : 0; \
294 env->psrps = (_tmp & PSR_PS)? 1 : 0; \
295 env->psret = (_tmp & PSR_ET)? 1 : 0; \
d4218d99 296 cpu_set_cwp(env, _tmp & PSR_CWP); \
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297 } while (0)
298
3475187d 299#ifdef TARGET_SPARC64
17d996e1 300#define GET_CCR(env) (((env->xcc >> 20) << 4) | ((env->psr & PSR_ICC) >> 20))
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301#define PUT_CCR(env, val) do { int _tmp = val; \
302 env->xcc = (_tmp >> 4) << 20; \
303 env->psr = (_tmp & 0xf) << 20; \
3475187d 304 } while (0)
17d996e1 305#define GET_CWP64(env) (NWINDOWS - 1 - (env)->cwp)
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306#define PUT_CWP64(env, val) \
307 cpu_set_cwp(env, NWINDOWS - 1 - ((val) & (NWINDOWS - 1)))
17d996e1 308
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309#endif
310
5a7b542b 311int cpu_sparc_signal_handler(int host_signum, void *pinfo, void *puc);
b4f0a316 312void raise_exception(int tt);
5dcb6b91 313void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
6c36d3fa 314 int is_asi);
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315void do_tick_set_count(void *opaque, uint64_t count);
316uint64_t do_tick_get_count(void *opaque);
317void do_tick_set_limit(void *opaque, uint64_t limit);
327ac2e7 318void cpu_check_irqs(CPUSPARCState *env);
7a3f1944 319
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320#define CPUState CPUSPARCState
321#define cpu_init cpu_sparc_init
322#define cpu_exec cpu_sparc_exec
323#define cpu_gen_code cpu_sparc_gen_code
324#define cpu_signal_handler cpu_sparc_signal_handler
c732abe2 325#define cpu_list sparc_cpu_list
9467d44c 326
6ebbf390 327/* MMU modes definitions */
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328#define MMU_MODE0_SUFFIX _user
329#define MMU_MODE1_SUFFIX _kernel
330#ifdef TARGET_SPARC64
331#define MMU_MODE2_SUFFIX _hypv
332#endif
333#define MMU_USER_IDX 0
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334static inline int cpu_mmu_index (CPUState *env)
335{
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336#if defined(CONFIG_USER_ONLY)
337 return 0;
338#elif !defined(TARGET_SPARC64)
339 return env->psrs;
340#else
341 if (!env->psrs)
342 return 0;
343 else if ((env->hpstate & HS_PRIV) == 0)
344 return 1;
345 else
346 return 2;
347#endif
348}
349
350static inline int cpu_fpu_enabled(CPUState *env)
351{
352#if defined(CONFIG_USER_ONLY)
353 return 1;
354#elif !defined(TARGET_SPARC64)
355 return env->psref;
356#else
357 return ((env->pstate & PS_PEF) != 0) && ((env->fprs & FPRS_FEF) != 0);
358#endif
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359}
360
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361#include "cpu-all.h"
362
363#endif