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20#ifndef SH4_CPU_H
21#define SH4_CPU_H
22
23#include "cpu-qom.h"
24#include "exec/cpu-defs.h"
25
26
27#define SH_CPU_SH7750 (1 << 0)
28#define SH_CPU_SH7750S (1 << 1)
29#define SH_CPU_SH7750R (1 << 2)
30#define SH_CPU_SH7751 (1 << 3)
31#define SH_CPU_SH7751R (1 << 4)
32#define SH_CPU_SH7785 (1 << 5)
33#define SH_CPU_SH7750_ALL (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7750R)
34#define SH_CPU_SH7751_ALL (SH_CPU_SH7751 | SH_CPU_SH7751R)
35
36#define SR_MD 30
37#define SR_RB 29
38#define SR_BL 28
39#define SR_FD 15
40#define SR_M 9
41#define SR_Q 8
42#define SR_I3 7
43#define SR_I2 6
44#define SR_I1 5
45#define SR_I0 4
46#define SR_S 1
47#define SR_T 0
48
49#define FPSCR_MASK (0x003fffff)
50#define FPSCR_FR (1 << 21)
51#define FPSCR_SZ (1 << 20)
52#define FPSCR_PR (1 << 19)
53#define FPSCR_DN (1 << 18)
54#define FPSCR_CAUSE_MASK (0x3f << 12)
55#define FPSCR_CAUSE_SHIFT (12)
56#define FPSCR_CAUSE_E (1 << 17)
57#define FPSCR_CAUSE_V (1 << 16)
58#define FPSCR_CAUSE_Z (1 << 15)
59#define FPSCR_CAUSE_O (1 << 14)
60#define FPSCR_CAUSE_U (1 << 13)
61#define FPSCR_CAUSE_I (1 << 12)
62#define FPSCR_ENABLE_MASK (0x1f << 7)
63#define FPSCR_ENABLE_SHIFT (7)
64#define FPSCR_ENABLE_V (1 << 11)
65#define FPSCR_ENABLE_Z (1 << 10)
66#define FPSCR_ENABLE_O (1 << 9)
67#define FPSCR_ENABLE_U (1 << 8)
68#define FPSCR_ENABLE_I (1 << 7)
69#define FPSCR_FLAG_MASK (0x1f << 2)
70#define FPSCR_FLAG_SHIFT (2)
71#define FPSCR_FLAG_V (1 << 6)
72#define FPSCR_FLAG_Z (1 << 5)
73#define FPSCR_FLAG_O (1 << 4)
74#define FPSCR_FLAG_U (1 << 3)
75#define FPSCR_FLAG_I (1 << 2)
76#define FPSCR_RM_MASK (0x03 << 0)
77#define FPSCR_RM_NEAREST (0 << 0)
78#define FPSCR_RM_ZERO (1 << 0)
79
80#define DELAY_SLOT_MASK 0x7
81#define DELAY_SLOT (1 << 0)
82#define DELAY_SLOT_CONDITIONAL (1 << 1)
83#define DELAY_SLOT_RTE (1 << 2)
84
85#define TB_FLAG_PENDING_MOVCA (1 << 3)
86
87#define GUSA_SHIFT 4
88#ifdef CONFIG_USER_ONLY
89#define GUSA_EXCLUSIVE (1 << 12)
90#define GUSA_MASK ((0xff << GUSA_SHIFT) | GUSA_EXCLUSIVE)
91#else
92
93
94#define GUSA_EXCLUSIVE 0
95#define GUSA_MASK 0
96#endif
97
98#define TB_FLAG_ENVFLAGS_MASK (DELAY_SLOT_MASK | GUSA_MASK)
99
100typedef struct tlb_t {
101 uint32_t vpn;
102 uint32_t ppn;
103 uint32_t size;
104 uint8_t asid;
105 uint8_t v:1;
106 uint8_t sz:2;
107 uint8_t sh:1;
108 uint8_t c:1;
109 uint8_t pr:2;
110 uint8_t d:1;
111 uint8_t wt:1;
112 uint8_t sa:3;
113 uint8_t tc:1;
114} tlb_t;
115
116#define UTLB_SIZE 64
117#define ITLB_SIZE 4
118
119#define TARGET_INSN_START_EXTRA_WORDS 1
120
121enum sh_features {
122 SH_FEATURE_SH4A = 1,
123 SH_FEATURE_BCR3_AND_BCR4 = 2,
124};
125
126typedef struct memory_content {
127 uint32_t address;
128 uint32_t value;
129 struct memory_content *next;
130} memory_content;
131
132typedef struct CPUSH4State {
133 uint32_t flags;
134 uint32_t gregs[24];
135 float32 fregs[32];
136 uint32_t sr;
137 uint32_t sr_m;
138 uint32_t sr_q;
139 uint32_t sr_t;
140 uint32_t ssr;
141 uint32_t spc;
142 uint32_t gbr;
143 uint32_t vbr;
144 uint32_t sgr;
145 uint32_t dbr;
146 uint32_t pc;
147 uint32_t delayed_pc;
148 uint32_t delayed_cond;
149 uint32_t mach;
150 uint32_t macl;
151 uint32_t pr;
152 uint32_t fpscr;
153 uint32_t fpul;
154
155
156 float_status fp_status;
157
158
159 uint32_t mmucr;
160 uint32_t pteh;
161 uint32_t ptel;
162 uint32_t ptea;
163 uint32_t ttb;
164 uint32_t tea;
165 uint32_t tra;
166 uint32_t expevt;
167 uint32_t intevt;
168
169 tlb_t itlb[ITLB_SIZE];
170 tlb_t utlb[UTLB_SIZE];
171
172
173 uint32_t lock_addr;
174 uint32_t lock_value;
175
176
177 struct {} end_reset_fields;
178
179
180 int id;
181
182
183 uint32_t features;
184
185 void *intc_handle;
186 int in_sleep;
187 memory_content *movcal_backup;
188 memory_content **movcal_backup_tail;
189} CPUSH4State;
190
191
192
193
194
195
196
197struct SuperHCPU {
198
199 CPUState parent_obj;
200
201
202 CPUNegativeOffsetState neg;
203 CPUSH4State env;
204};
205
206
207void superh_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
208hwaddr superh_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
209int superh_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
210int superh_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
211void superh_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
212 MMUAccessType access_type, int mmu_idx,
213 uintptr_t retaddr) QEMU_NORETURN;
214
215void sh4_translate_init(void);
216void sh4_cpu_list(void);
217
218#if !defined(CONFIG_USER_ONLY)
219bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
220 MMUAccessType access_type, int mmu_idx,
221 bool probe, uintptr_t retaddr);
222void superh_cpu_do_interrupt(CPUState *cpu);
223bool superh_cpu_exec_interrupt(CPUState *cpu, int int_req);
224void cpu_sh4_invalidate_tlb(CPUSH4State *s);
225uint32_t cpu_sh4_read_mmaped_itlb_addr(CPUSH4State *s,
226 hwaddr addr);
227void cpu_sh4_write_mmaped_itlb_addr(CPUSH4State *s, hwaddr addr,
228 uint32_t mem_value);
229uint32_t cpu_sh4_read_mmaped_itlb_data(CPUSH4State *s,
230 hwaddr addr);
231void cpu_sh4_write_mmaped_itlb_data(CPUSH4State *s, hwaddr addr,
232 uint32_t mem_value);
233uint32_t cpu_sh4_read_mmaped_utlb_addr(CPUSH4State *s,
234 hwaddr addr);
235void cpu_sh4_write_mmaped_utlb_addr(CPUSH4State *s, hwaddr addr,
236 uint32_t mem_value);
237uint32_t cpu_sh4_read_mmaped_utlb_data(CPUSH4State *s,
238 hwaddr addr);
239void cpu_sh4_write_mmaped_utlb_data(CPUSH4State *s, hwaddr addr,
240 uint32_t mem_value);
241#endif
242
243int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr);
244
245void cpu_load_tlb(CPUSH4State * env);
246
247#define SUPERH_CPU_TYPE_SUFFIX "-" TYPE_SUPERH_CPU
248#define SUPERH_CPU_TYPE_NAME(model) model SUPERH_CPU_TYPE_SUFFIX
249#define CPU_RESOLVING_TYPE TYPE_SUPERH_CPU
250
251#define cpu_list sh4_cpu_list
252
253
254#define MMU_USER_IDX 1
255static inline int cpu_mmu_index (CPUSH4State *env, bool ifetch)
256{
257
258
259 if (ifetch && (env->flags & DELAY_SLOT_RTE)) {
260 return 0;
261 } else {
262 return (env->sr & (1u << SR_MD)) == 0 ? 1 : 0;
263 }
264}
265
266typedef CPUSH4State CPUArchState;
267typedef SuperHCPU ArchCPU;
268
269#include "exec/cpu-all.h"
270
271
272#define MMUCR 0x1F000010
273#define MMUCR_AT (1<<0)
274#define MMUCR_TI (1<<2)
275#define MMUCR_SV (1<<8)
276#define MMUCR_URC_BITS (6)
277#define MMUCR_URC_OFFSET (10)
278#define MMUCR_URC_SIZE (1 << MMUCR_URC_BITS)
279#define MMUCR_URC_MASK (((MMUCR_URC_SIZE) - 1) << MMUCR_URC_OFFSET)
280static inline int cpu_mmucr_urc (uint32_t mmucr)
281{
282 return ((mmucr & MMUCR_URC_MASK) >> MMUCR_URC_OFFSET);
283}
284
285
286#define PTEH_ASID_BITS (8)
287#define PTEH_ASID_SIZE (1 << PTEH_ASID_BITS)
288#define PTEH_ASID_MASK (PTEH_ASID_SIZE - 1)
289#define cpu_pteh_asid(pteh) ((pteh) & PTEH_ASID_MASK)
290#define PTEH_VPN_BITS (22)
291#define PTEH_VPN_OFFSET (10)
292#define PTEH_VPN_SIZE (1 << PTEH_VPN_BITS)
293#define PTEH_VPN_MASK (((PTEH_VPN_SIZE) - 1) << PTEH_VPN_OFFSET)
294static inline int cpu_pteh_vpn (uint32_t pteh)
295{
296 return ((pteh & PTEH_VPN_MASK) >> PTEH_VPN_OFFSET);
297}
298
299
300#define PTEL_V (1 << 8)
301#define cpu_ptel_v(ptel) (((ptel) & PTEL_V) >> 8)
302#define PTEL_C (1 << 3)
303#define cpu_ptel_c(ptel) (((ptel) & PTEL_C) >> 3)
304#define PTEL_D (1 << 2)
305#define cpu_ptel_d(ptel) (((ptel) & PTEL_D) >> 2)
306#define PTEL_SH (1 << 1)
307#define cpu_ptel_sh(ptel)(((ptel) & PTEL_SH) >> 1)
308#define PTEL_WT (1 << 0)
309#define cpu_ptel_wt(ptel) ((ptel) & PTEL_WT)
310
311#define PTEL_SZ_HIGH_OFFSET (7)
312#define PTEL_SZ_HIGH (1 << PTEL_SZ_HIGH_OFFSET)
313#define PTEL_SZ_LOW_OFFSET (4)
314#define PTEL_SZ_LOW (1 << PTEL_SZ_LOW_OFFSET)
315static inline int cpu_ptel_sz (uint32_t ptel)
316{
317 int sz;
318 sz = (ptel & PTEL_SZ_HIGH) >> PTEL_SZ_HIGH_OFFSET;
319 sz <<= 1;
320 sz |= (ptel & PTEL_SZ_LOW) >> PTEL_SZ_LOW_OFFSET;
321 return sz;
322}
323
324#define PTEL_PPN_BITS (19)
325#define PTEL_PPN_OFFSET (10)
326#define PTEL_PPN_SIZE (1 << PTEL_PPN_BITS)
327#define PTEL_PPN_MASK (((PTEL_PPN_SIZE) - 1) << PTEL_PPN_OFFSET)
328static inline int cpu_ptel_ppn (uint32_t ptel)
329{
330 return ((ptel & PTEL_PPN_MASK) >> PTEL_PPN_OFFSET);
331}
332
333#define PTEL_PR_BITS (2)
334#define PTEL_PR_OFFSET (5)
335#define PTEL_PR_SIZE (1 << PTEL_PR_BITS)
336#define PTEL_PR_MASK (((PTEL_PR_SIZE) - 1) << PTEL_PR_OFFSET)
337static inline int cpu_ptel_pr (uint32_t ptel)
338{
339 return ((ptel & PTEL_PR_MASK) >> PTEL_PR_OFFSET);
340}
341
342
343#define PTEA_SA_BITS (3)
344#define PTEA_SA_SIZE (1 << PTEA_SA_BITS)
345#define PTEA_SA_MASK (PTEA_SA_SIZE - 1)
346#define cpu_ptea_sa(ptea) ((ptea) & PTEA_SA_MASK)
347#define PTEA_TC (1 << 3)
348#define cpu_ptea_tc(ptea) (((ptea) & PTEA_TC) >> 3)
349
350static inline target_ulong cpu_read_sr(CPUSH4State *env)
351{
352 return env->sr | (env->sr_m << SR_M) |
353 (env->sr_q << SR_Q) |
354 (env->sr_t << SR_T);
355}
356
357static inline void cpu_write_sr(CPUSH4State *env, target_ulong sr)
358{
359 env->sr_m = (sr >> SR_M) & 1;
360 env->sr_q = (sr >> SR_Q) & 1;
361 env->sr_t = (sr >> SR_T) & 1;
362 env->sr = sr & ~((1u << SR_M) | (1u << SR_Q) | (1u << SR_T));
363}
364
365static inline void cpu_get_tb_cpu_state(CPUSH4State *env, target_ulong *pc,
366 target_ulong *cs_base, uint32_t *flags)
367{
368 *pc = env->pc;
369
370 *cs_base = env->flags & GUSA_MASK ? env->gregs[0] : 0;
371 *flags = env->flags
372 | (env->fpscr & (FPSCR_FR | FPSCR_SZ | FPSCR_PR))
373 | (env->sr & ((1u << SR_MD) | (1u << SR_RB)))
374 | (env->sr & (1u << SR_FD))
375 | (env->movcal_backup ? TB_FLAG_PENDING_MOVCA : 0);
376}
377
378#endif
379