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20#ifndef SH4_CPU_H
21#define SH4_CPU_H
22
23#include "qemu-common.h"
24#include "cpu-qom.h"
25
26#define TARGET_LONG_BITS 32
27#define ALIGNED_ONLY
28
29
30#define SH_CPU_SH7750 (1 << 0)
31#define SH_CPU_SH7750S (1 << 1)
32#define SH_CPU_SH7750R (1 << 2)
33#define SH_CPU_SH7751 (1 << 3)
34#define SH_CPU_SH7751R (1 << 4)
35#define SH_CPU_SH7785 (1 << 5)
36#define SH_CPU_SH7750_ALL (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7750R)
37#define SH_CPU_SH7751_ALL (SH_CPU_SH7751 | SH_CPU_SH7751R)
38
39#define CPUArchState struct CPUSH4State
40
41#include "exec/cpu-defs.h"
42
43#define TARGET_PAGE_BITS 12
44
45#define TARGET_PHYS_ADDR_SPACE_BITS 32
46#ifdef CONFIG_USER_ONLY
47# define TARGET_VIRT_ADDR_SPACE_BITS 31
48#else
49# define TARGET_VIRT_ADDR_SPACE_BITS 32
50#endif
51
52#define SR_MD 30
53#define SR_RB 29
54#define SR_BL 28
55#define SR_FD 15
56#define SR_M 9
57#define SR_Q 8
58#define SR_I3 7
59#define SR_I2 6
60#define SR_I1 5
61#define SR_I0 4
62#define SR_S 1
63#define SR_T 0
64
65#define FPSCR_MASK (0x003fffff)
66#define FPSCR_FR (1 << 21)
67#define FPSCR_SZ (1 << 20)
68#define FPSCR_PR (1 << 19)
69#define FPSCR_DN (1 << 18)
70#define FPSCR_CAUSE_MASK (0x3f << 12)
71#define FPSCR_CAUSE_SHIFT (12)
72#define FPSCR_CAUSE_E (1 << 17)
73#define FPSCR_CAUSE_V (1 << 16)
74#define FPSCR_CAUSE_Z (1 << 15)
75#define FPSCR_CAUSE_O (1 << 14)
76#define FPSCR_CAUSE_U (1 << 13)
77#define FPSCR_CAUSE_I (1 << 12)
78#define FPSCR_ENABLE_MASK (0x1f << 7)
79#define FPSCR_ENABLE_SHIFT (7)
80#define FPSCR_ENABLE_V (1 << 11)
81#define FPSCR_ENABLE_Z (1 << 10)
82#define FPSCR_ENABLE_O (1 << 9)
83#define FPSCR_ENABLE_U (1 << 8)
84#define FPSCR_ENABLE_I (1 << 7)
85#define FPSCR_FLAG_MASK (0x1f << 2)
86#define FPSCR_FLAG_SHIFT (2)
87#define FPSCR_FLAG_V (1 << 6)
88#define FPSCR_FLAG_Z (1 << 5)
89#define FPSCR_FLAG_O (1 << 4)
90#define FPSCR_FLAG_U (1 << 3)
91#define FPSCR_FLAG_I (1 << 2)
92#define FPSCR_RM_MASK (0x03 << 0)
93#define FPSCR_RM_NEAREST (0 << 0)
94#define FPSCR_RM_ZERO (1 << 0)
95
96#define DELAY_SLOT_MASK 0x7
97#define DELAY_SLOT (1 << 0)
98#define DELAY_SLOT_CONDITIONAL (1 << 1)
99#define DELAY_SLOT_RTE (1 << 2)
100
101#define TB_FLAG_PENDING_MOVCA (1 << 3)
102
103#define GUSA_SHIFT 4
104#ifdef CONFIG_USER_ONLY
105#define GUSA_EXCLUSIVE (1 << 12)
106#define GUSA_MASK ((0xff << GUSA_SHIFT) | GUSA_EXCLUSIVE)
107#else
108
109
110#define GUSA_EXCLUSIVE 0
111#define GUSA_MASK 0
112#endif
113
114#define TB_FLAG_ENVFLAGS_MASK (DELAY_SLOT_MASK | GUSA_MASK)
115
116typedef struct tlb_t {
117 uint32_t vpn;
118 uint32_t ppn;
119 uint32_t size;
120 uint8_t asid;
121 uint8_t v:1;
122 uint8_t sz:2;
123 uint8_t sh:1;
124 uint8_t c:1;
125 uint8_t pr:2;
126 uint8_t d:1;
127 uint8_t wt:1;
128 uint8_t sa:3;
129 uint8_t tc:1;
130} tlb_t;
131
132#define UTLB_SIZE 64
133#define ITLB_SIZE 4
134
135#define NB_MMU_MODES 2
136#define TARGET_INSN_START_EXTRA_WORDS 1
137
138enum sh_features {
139 SH_FEATURE_SH4A = 1,
140 SH_FEATURE_BCR3_AND_BCR4 = 2,
141};
142
143typedef struct memory_content {
144 uint32_t address;
145 uint32_t value;
146 struct memory_content *next;
147} memory_content;
148
149typedef struct CPUSH4State {
150 uint32_t flags;
151 uint32_t gregs[24];
152 float32 fregs[32];
153 uint32_t sr;
154 uint32_t sr_m;
155 uint32_t sr_q;
156 uint32_t sr_t;
157 uint32_t ssr;
158 uint32_t spc;
159 uint32_t gbr;
160 uint32_t vbr;
161 uint32_t sgr;
162 uint32_t dbr;
163 uint32_t pc;
164 uint32_t delayed_pc;
165 uint32_t delayed_cond;
166 uint32_t mach;
167 uint32_t macl;
168 uint32_t pr;
169 uint32_t fpscr;
170 uint32_t fpul;
171
172
173 float_status fp_status;
174
175
176 uint32_t mmucr;
177 uint32_t pteh;
178 uint32_t ptel;
179 uint32_t ptea;
180 uint32_t ttb;
181 uint32_t tea;
182 uint32_t tra;
183 uint32_t expevt;
184 uint32_t intevt;
185
186 tlb_t itlb[ITLB_SIZE];
187 tlb_t utlb[UTLB_SIZE];
188
189
190 uint32_t lock_addr;
191 uint32_t lock_value;
192
193
194 struct {} end_reset_fields;
195
196 CPU_COMMON
197
198
199 int id;
200
201
202 uint32_t features;
203
204 void *intc_handle;
205 int in_sleep;
206 memory_content *movcal_backup;
207 memory_content **movcal_backup_tail;
208} CPUSH4State;
209
210
211
212
213
214
215
216struct SuperHCPU {
217
218 CPUState parent_obj;
219
220
221 CPUSH4State env;
222};
223
224static inline SuperHCPU *sh_env_get_cpu(CPUSH4State *env)
225{
226 return container_of(env, SuperHCPU, env);
227}
228
229#define ENV_GET_CPU(e) CPU(sh_env_get_cpu(e))
230
231#define ENV_OFFSET offsetof(SuperHCPU, env)
232
233void superh_cpu_do_interrupt(CPUState *cpu);
234bool superh_cpu_exec_interrupt(CPUState *cpu, int int_req);
235void superh_cpu_dump_state(CPUState *cpu, FILE *f,
236 fprintf_function cpu_fprintf, int flags);
237hwaddr superh_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
238int superh_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
239int superh_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
240void superh_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
241 MMUAccessType access_type,
242 int mmu_idx, uintptr_t retaddr);
243
244void sh4_translate_init(void);
245int cpu_sh4_signal_handler(int host_signum, void *pinfo,
246 void *puc);
247int superh_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int size, int rw,
248 int mmu_idx);
249
250void sh4_cpu_list(FILE *f, fprintf_function cpu_fprintf);
251#if !defined(CONFIG_USER_ONLY)
252void cpu_sh4_invalidate_tlb(CPUSH4State *s);
253uint32_t cpu_sh4_read_mmaped_itlb_addr(CPUSH4State *s,
254 hwaddr addr);
255void cpu_sh4_write_mmaped_itlb_addr(CPUSH4State *s, hwaddr addr,
256 uint32_t mem_value);
257uint32_t cpu_sh4_read_mmaped_itlb_data(CPUSH4State *s,
258 hwaddr addr);
259void cpu_sh4_write_mmaped_itlb_data(CPUSH4State *s, hwaddr addr,
260 uint32_t mem_value);
261uint32_t cpu_sh4_read_mmaped_utlb_addr(CPUSH4State *s,
262 hwaddr addr);
263void cpu_sh4_write_mmaped_utlb_addr(CPUSH4State *s, hwaddr addr,
264 uint32_t mem_value);
265uint32_t cpu_sh4_read_mmaped_utlb_data(CPUSH4State *s,
266 hwaddr addr);
267void cpu_sh4_write_mmaped_utlb_data(CPUSH4State *s, hwaddr addr,
268 uint32_t mem_value);
269#endif
270
271int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr);
272
273void cpu_load_tlb(CPUSH4State * env);
274
275#define SUPERH_CPU_TYPE_SUFFIX "-" TYPE_SUPERH_CPU
276#define SUPERH_CPU_TYPE_NAME(model) model SUPERH_CPU_TYPE_SUFFIX
277#define CPU_RESOLVING_TYPE TYPE_SUPERH_CPU
278
279#define cpu_signal_handler cpu_sh4_signal_handler
280#define cpu_list sh4_cpu_list
281
282
283#define MMU_MODE0_SUFFIX _kernel
284#define MMU_MODE1_SUFFIX _user
285#define MMU_USER_IDX 1
286static inline int cpu_mmu_index (CPUSH4State *env, bool ifetch)
287{
288
289
290 if (ifetch && (env->flags & DELAY_SLOT_RTE)) {
291 return 0;
292 } else {
293 return (env->sr & (1u << SR_MD)) == 0 ? 1 : 0;
294 }
295}
296
297#include "exec/cpu-all.h"
298
299
300enum {
301
302 ACCESS_PRIV = 0x01,
303
304 ACCESS_WRITE = 0x02,
305
306 ACCESS_CODE = 0x10,
307 ACCESS_INT = 0x20
308};
309
310
311#define MMUCR 0x1F000010
312#define MMUCR_AT (1<<0)
313#define MMUCR_TI (1<<2)
314#define MMUCR_SV (1<<8)
315#define MMUCR_URC_BITS (6)
316#define MMUCR_URC_OFFSET (10)
317#define MMUCR_URC_SIZE (1 << MMUCR_URC_BITS)
318#define MMUCR_URC_MASK (((MMUCR_URC_SIZE) - 1) << MMUCR_URC_OFFSET)
319static inline int cpu_mmucr_urc (uint32_t mmucr)
320{
321 return ((mmucr & MMUCR_URC_MASK) >> MMUCR_URC_OFFSET);
322}
323
324
325#define PTEH_ASID_BITS (8)
326#define PTEH_ASID_SIZE (1 << PTEH_ASID_BITS)
327#define PTEH_ASID_MASK (PTEH_ASID_SIZE - 1)
328#define cpu_pteh_asid(pteh) ((pteh) & PTEH_ASID_MASK)
329#define PTEH_VPN_BITS (22)
330#define PTEH_VPN_OFFSET (10)
331#define PTEH_VPN_SIZE (1 << PTEH_VPN_BITS)
332#define PTEH_VPN_MASK (((PTEH_VPN_SIZE) - 1) << PTEH_VPN_OFFSET)
333static inline int cpu_pteh_vpn (uint32_t pteh)
334{
335 return ((pteh & PTEH_VPN_MASK) >> PTEH_VPN_OFFSET);
336}
337
338
339#define PTEL_V (1 << 8)
340#define cpu_ptel_v(ptel) (((ptel) & PTEL_V) >> 8)
341#define PTEL_C (1 << 3)
342#define cpu_ptel_c(ptel) (((ptel) & PTEL_C) >> 3)
343#define PTEL_D (1 << 2)
344#define cpu_ptel_d(ptel) (((ptel) & PTEL_D) >> 2)
345#define PTEL_SH (1 << 1)
346#define cpu_ptel_sh(ptel)(((ptel) & PTEL_SH) >> 1)
347#define PTEL_WT (1 << 0)
348#define cpu_ptel_wt(ptel) ((ptel) & PTEL_WT)
349
350#define PTEL_SZ_HIGH_OFFSET (7)
351#define PTEL_SZ_HIGH (1 << PTEL_SZ_HIGH_OFFSET)
352#define PTEL_SZ_LOW_OFFSET (4)
353#define PTEL_SZ_LOW (1 << PTEL_SZ_LOW_OFFSET)
354static inline int cpu_ptel_sz (uint32_t ptel)
355{
356 int sz;
357 sz = (ptel & PTEL_SZ_HIGH) >> PTEL_SZ_HIGH_OFFSET;
358 sz <<= 1;
359 sz |= (ptel & PTEL_SZ_LOW) >> PTEL_SZ_LOW_OFFSET;
360 return sz;
361}
362
363#define PTEL_PPN_BITS (19)
364#define PTEL_PPN_OFFSET (10)
365#define PTEL_PPN_SIZE (1 << PTEL_PPN_BITS)
366#define PTEL_PPN_MASK (((PTEL_PPN_SIZE) - 1) << PTEL_PPN_OFFSET)
367static inline int cpu_ptel_ppn (uint32_t ptel)
368{
369 return ((ptel & PTEL_PPN_MASK) >> PTEL_PPN_OFFSET);
370}
371
372#define PTEL_PR_BITS (2)
373#define PTEL_PR_OFFSET (5)
374#define PTEL_PR_SIZE (1 << PTEL_PR_BITS)
375#define PTEL_PR_MASK (((PTEL_PR_SIZE) - 1) << PTEL_PR_OFFSET)
376static inline int cpu_ptel_pr (uint32_t ptel)
377{
378 return ((ptel & PTEL_PR_MASK) >> PTEL_PR_OFFSET);
379}
380
381
382#define PTEA_SA_BITS (3)
383#define PTEA_SA_SIZE (1 << PTEA_SA_BITS)
384#define PTEA_SA_MASK (PTEA_SA_SIZE - 1)
385#define cpu_ptea_sa(ptea) ((ptea) & PTEA_SA_MASK)
386#define PTEA_TC (1 << 3)
387#define cpu_ptea_tc(ptea) (((ptea) & PTEA_TC) >> 3)
388
389static inline target_ulong cpu_read_sr(CPUSH4State *env)
390{
391 return env->sr | (env->sr_m << SR_M) |
392 (env->sr_q << SR_Q) |
393 (env->sr_t << SR_T);
394}
395
396static inline void cpu_write_sr(CPUSH4State *env, target_ulong sr)
397{
398 env->sr_m = (sr >> SR_M) & 1;
399 env->sr_q = (sr >> SR_Q) & 1;
400 env->sr_t = (sr >> SR_T) & 1;
401 env->sr = sr & ~((1u << SR_M) | (1u << SR_Q) | (1u << SR_T));
402}
403
404static inline void cpu_get_tb_cpu_state(CPUSH4State *env, target_ulong *pc,
405 target_ulong *cs_base, uint32_t *flags)
406{
407 *pc = env->pc;
408
409 *cs_base = env->flags & GUSA_MASK ? env->gregs[0] : 0;
410 *flags = env->flags
411 | (env->fpscr & (FPSCR_FR | FPSCR_SZ | FPSCR_PR))
412 | (env->sr & ((1u << SR_MD) | (1u << SR_RB)))
413 | (env->sr & (1u << SR_FD))
414 | (env->movcal_backup ? TB_FLAG_PENDING_MOVCA : 0);
415}
416
417#endif
418