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sparc64 marge (Blue Swirl)
[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
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9#else
10#define TARGET_LONG_BITS 64
11#define TARGET_FPREGS 64
af7bf89b 12#endif
3475187d 13#define TARGET_FPREG_T float
3cf1e035 14
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15#include "cpu-defs.h"
16
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17#include "softfloat.h"
18
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19#define TARGET_HAS_ICE 1
20
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21/*#define EXCP_INTERRUPT 0x100*/
22
cf495bcf 23/* trap definitions */
3475187d 24#ifndef TARGET_SPARC64
878d3096 25#define TT_TFAULT 0x01
cf495bcf 26#define TT_ILL_INSN 0x02
e8af50a3 27#define TT_PRIV_INSN 0x03
e80cfcfc 28#define TT_NFPU_INSN 0x04
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29#define TT_WIN_OVF 0x05
30#define TT_WIN_UNF 0x06
e8af50a3 31#define TT_FP_EXCP 0x08
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32#define TT_DFAULT 0x09
33#define TT_EXTINT 0x10
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34#define TT_DIV_ZERO 0x2a
35#define TT_TRAP 0x80
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36#else
37#define TT_TFAULT 0x08
38#define TT_ILL_INSN 0x10
39#define TT_PRIV_INSN 0x11
40#define TT_NFPU_INSN 0x20
41#define TT_FP_EXCP 0x21
42#define TT_CLRWIN 0x24
43#define TT_DIV_ZERO 0x28
44#define TT_DFAULT 0x30
45#define TT_EXTINT 0x40
46#define TT_SPILL 0x80
47#define TT_FILL 0xc0
48#define TT_WOTHER 0x10
49#define TT_TRAP 0x100
50#endif
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51
52#define PSR_NEG (1<<23)
53#define PSR_ZERO (1<<22)
54#define PSR_OVF (1<<21)
55#define PSR_CARRY (1<<20)
e8af50a3 56#define PSR_ICC (PSR_NEG|PSR_ZERO|PSR_OVF|PSR_CARRY)
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57#define PSR_EF (1<<12)
58#define PSR_PIL 0xf00
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59#define PSR_S (1<<7)
60#define PSR_PS (1<<6)
61#define PSR_ET (1<<5)
62#define PSR_CWP 0x1f
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63
64/* Trap base register */
65#define TBR_BASE_MASK 0xfffff000
66
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67#if defined(TARGET_SPARC64)
68#define PS_PEF (1<<4)
69#define PS_AM (1<<3)
70#define PS_PRIV (1<<2)
71#define PS_IE (1<<1)
72#endif
73
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74/* Fcc */
75#define FSR_RD1 (1<<31)
76#define FSR_RD0 (1<<30)
77#define FSR_RD_MASK (FSR_RD1 | FSR_RD0)
78#define FSR_RD_NEAREST 0
79#define FSR_RD_ZERO FSR_RD0
80#define FSR_RD_POS FSR_RD1
81#define FSR_RD_NEG (FSR_RD1 | FSR_RD0)
82
83#define FSR_NVM (1<<27)
84#define FSR_OFM (1<<26)
85#define FSR_UFM (1<<25)
86#define FSR_DZM (1<<24)
87#define FSR_NXM (1<<23)
88#define FSR_TEM_MASK (FSR_NVM | FSR_OFM | FSR_UFM | FSR_DZM | FSR_NXM)
89
90#define FSR_NVA (1<<9)
91#define FSR_OFA (1<<8)
92#define FSR_UFA (1<<7)
93#define FSR_DZA (1<<6)
94#define FSR_NXA (1<<5)
95#define FSR_AEXC_MASK (FSR_NVA | FSR_OFA | FSR_UFA | FSR_DZA | FSR_NXA)
96
97#define FSR_NVC (1<<4)
98#define FSR_OFC (1<<3)
99#define FSR_UFC (1<<2)
100#define FSR_DZC (1<<1)
101#define FSR_NXC (1<<0)
102#define FSR_CEXC_MASK (FSR_NVC | FSR_OFC | FSR_UFC | FSR_DZC | FSR_NXC)
103
104#define FSR_FTT2 (1<<16)
105#define FSR_FTT1 (1<<15)
106#define FSR_FTT0 (1<<14)
107#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0)
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108#define FSR_FTT_IEEE_EXCP (1 << 14)
109#define FSR_FTT_UNIMPFPOP (3 << 14)
110#define FSR_FTT_INVAL_FPR (6 << 14)
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111
112#define FSR_FCC1 (1<<11)
113#define FSR_FCC0 (1<<10)
114
115/* MMU */
116#define MMU_E (1<<0)
117#define MMU_NF (1<<1)
118
119#define PTE_ENTRYTYPE_MASK 3
120#define PTE_ACCESS_MASK 0x1c
121#define PTE_ACCESS_SHIFT 2
8d5f07fa 122#define PTE_PPN_SHIFT 7
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123#define PTE_ADDR_MASK 0xffffff00
124
125#define PG_ACCESSED_BIT 5
126#define PG_MODIFIED_BIT 6
127#define PG_CACHE_BIT 7
128
129#define PG_ACCESSED_MASK (1 << PG_ACCESSED_BIT)
130#define PG_MODIFIED_MASK (1 << PG_MODIFIED_BIT)
131#define PG_CACHE_MASK (1 << PG_CACHE_BIT)
132
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133/* 2 <= NWINDOWS <= 32. In QEMU it must also be a power of two. */
134#define NWINDOWS 8
cf495bcf 135
7a3f1944 136typedef struct CPUSPARCState {
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137 target_ulong gregs[8]; /* general registers */
138 target_ulong *regwptr; /* pointer to current register window */
139 TARGET_FPREG_T fpr[TARGET_FPREGS]; /* floating point registers */
140 target_ulong pc; /* program counter */
141 target_ulong npc; /* next program counter */
142 target_ulong y; /* multiply/divide register */
cf495bcf 143 uint32_t psr; /* processor state register */
3475187d 144 target_ulong fsr; /* FPU state register */
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145 uint32_t cwp; /* index of current register window (extracted
146 from PSR) */
147 uint32_t wim; /* window invalid mask */
3475187d 148 target_ulong tbr; /* trap base register */
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149 int psrs; /* supervisor mode (extracted from PSR) */
150 int psrps; /* previous supervisor mode */
151 int psret; /* enable traps */
3475187d 152 uint32_t psrpil; /* interrupt level */
e80cfcfc 153 int psref; /* enable fpu */
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154 jmp_buf jmp_env;
155 int user_mode_only;
156 int exception_index;
157 int interrupt_index;
158 int interrupt_request;
159 struct TranslationBlock *current_tb;
160 void *opaque;
161 /* NOTE: we allow 8 more registers to handle wrapping */
af7bf89b 162 target_ulong regbase[NWINDOWS * 16 + 8];
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163
164 /* in order to avoid passing too many arguments to the memory
165 write helpers, we store some rarely used information in the CPU
166 context) */
167 unsigned long mem_write_pc; /* host pc at which the memory was
168 written */
169 unsigned long mem_write_vaddr; /* target virtual addr at which the
170 memory was written */
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171 /* 0 = kernel, 1 = user (may have 2 = kernel code, 3 = user code ?) */
172 CPUTLBEntry tlb_read[2][CPU_TLB_SIZE];
173 CPUTLBEntry tlb_write[2][CPU_TLB_SIZE];
e8af50a3 174 /* MMU regs */
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175#if defined(TARGET_SPARC64)
176 uint64_t lsu;
177#define DMMU_E 0x8
178#define IMMU_E 0x4
179 uint64_t immuregs[16];
180 uint64_t dmmuregs[16];
181 uint64_t itlb_tag[64];
182 uint64_t itlb_tte[64];
183 uint64_t dtlb_tag[64];
184 uint64_t dtlb_tte[64];
185#else
e8af50a3 186 uint32_t mmuregs[16];
3475187d 187#endif
e8af50a3 188 /* temporary float registers */
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189 float ft0, ft1;
190 double dt0, dt1;
7a0e1f41 191 float_status fp_status;
af7bf89b 192#if defined(TARGET_SPARC64)
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193#define MAXTL 4
194 uint64_t t0, t1, t2;
195 uint64_t tpc[MAXTL];
196 uint64_t tnpc[MAXTL];
197 uint64_t tstate[MAXTL];
198 uint32_t tt[MAXTL];
199 uint32_t xcc; /* Extended integer condition codes */
200 uint32_t asi;
201 uint32_t pstate;
202 uint32_t tl;
203 uint32_t cansave, canrestore, otherwin, wstate, cleanwin;
204 target_ulong agregs[8]; /* alternate general registers */
205 target_ulong igregs[8]; /* interrupt general registers */
206 target_ulong mgregs[8]; /* mmu general registers */
207 uint64_t version;
208 uint64_t fprs;
209#endif
210#if !defined(TARGET_SPARC64) && !defined(reg_T2)
211 target_ulong t2;
af7bf89b 212#endif
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213
214 /* ice debug support */
af7bf89b 215 target_ulong breakpoints[MAX_BREAKPOINTS];
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216 int nb_breakpoints;
217 int singlestep_enabled; /* XXX: should use CPU single step mode instead */
218
7a3f1944 219} CPUSPARCState;
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220#if defined(TARGET_SPARC64)
221#define GET_FSR32(env) (env->fsr & 0xcfc1ffff)
222#define PUT_FSR32(env, val) do { uint32_t _tmp = val; \
223 env->fsr = (_tmp & 0xcfc1c3ff) | (env->fsr & 0x3f00000000ULL); \
224 } while (0)
225#define GET_FSR64(env) (env->fsr & 0x3fcfc1ffffULL)
226#define PUT_FSR64(env, val) do { uint64_t _tmp = val; \
227 env->fsr = _tmp & 0x3fcfc1c3ffULL; \
228 } while (0)
229// Manuf 0x17, version 0x11, mask 0 (UltraSparc-II)
230#define GET_VER(env) ((0x17ULL << 48) | (0x11ULL << 32) | \
231 (0 << 24) | (MAXTL << 8) | (NWINDOWS - 1))
232#else
233#define GET_FSR32(env) (env->fsr)
234#define PUT_FSR32(env, val) do { uint32_t _tmp = val; \
235 env->fsr = _tmp & 0xcfc1ffff; \
236 } while (0)
237#endif
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238
239CPUSPARCState *cpu_sparc_init(void);
240int cpu_sparc_exec(CPUSPARCState *s);
241int cpu_sparc_close(CPUSPARCState *s);
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242void cpu_get_fp64(uint64_t *pmant, uint16_t *pexp, double f);
243double cpu_put_fp64(uint64_t mant, uint16_t exp);
7a3f1944 244
b4ff5987 245/* Fake impl 0, version 4 */
af7bf89b 246#define GET_PSR(env) ((0 << 28) | (4 << 24) | (env->psr & PSR_ICC) | \
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247 (env->psref? PSR_EF : 0) | \
248 (env->psrpil << 8) | \
249 (env->psrs? PSR_S : 0) | \
afc7df11 250 (env->psrps? PSR_PS : 0) | \
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251 (env->psret? PSR_ET : 0) | env->cwp)
252
253#ifndef NO_CPU_IO_DEFS
254void cpu_set_cwp(CPUSPARCState *env1, int new_cwp);
255#endif
256
257#define PUT_PSR(env, val) do { int _tmp = val; \
af7bf89b 258 env->psr = _tmp & PSR_ICC; \
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259 env->psref = (_tmp & PSR_EF)? 1 : 0; \
260 env->psrpil = (_tmp & PSR_PIL) >> 8; \
261 env->psrs = (_tmp & PSR_S)? 1 : 0; \
262 env->psrps = (_tmp & PSR_PS)? 1 : 0; \
263 env->psret = (_tmp & PSR_ET)? 1 : 0; \
264 cpu_set_cwp(env, _tmp & PSR_CWP & (NWINDOWS - 1)); \
265 } while (0)
266
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267#ifdef TARGET_SPARC64
268#define GET_CCR(env) ((env->xcc << 4) | (env->psr & PSR_ICC))
269#define PUT_CCR(env, val) do { int _tmp = val; \
270 env->xcc = _tmp >> 4; \
271 env->psr = (_tmp & 0xf) << 20; \
272 } while (0)
273#endif
274
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275struct siginfo;
276int cpu_sparc_signal_handler(int hostsignum, struct siginfo *info, void *puc);
7a3f1944 277
e8af50a3 278#define TARGET_PAGE_BITS 12 /* 4k */
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279#include "cpu-all.h"
280
281#endif
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