1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Copyright (c) 2021 Loongson Technology Corporation Limited
8 #include "qemu/osdep.h"
10 #include "qemu/qemu-print.h"
11 #include "qapi/error.h"
12 #include "qemu/module.h"
13 #include "sysemu/qtest.h"
14 #include "exec/exec-all.h"
15 #include "qapi/qapi-commands-machine-target.h"
17 #include "internals.h"
18 #include "fpu/softfloat-helpers.h"
20 #include "sysemu/reset.h"
22 const char * const regnames
[32] = {
23 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
24 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
25 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
26 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
29 const char * const fregnames
[32] = {
30 "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
31 "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
32 "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
33 "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
36 static const char * const excp_names
[] = {
37 [EXCCODE_INT
] = "Interrupt",
38 [EXCCODE_PIL
] = "Page invalid exception for load",
39 [EXCCODE_PIS
] = "Page invalid exception for store",
40 [EXCCODE_PIF
] = "Page invalid exception for fetch",
41 [EXCCODE_PME
] = "Page modified exception",
42 [EXCCODE_PNR
] = "Page Not Readable exception",
43 [EXCCODE_PNX
] = "Page Not Executable exception",
44 [EXCCODE_PPI
] = "Page Privilege error",
45 [EXCCODE_ADEF
] = "Address error for instruction fetch",
46 [EXCCODE_ADEM
] = "Address error for Memory access",
47 [EXCCODE_SYS
] = "Syscall",
48 [EXCCODE_BRK
] = "Break",
49 [EXCCODE_INE
] = "Instruction Non-Existent",
50 [EXCCODE_IPE
] = "Instruction privilege error",
51 [EXCCODE_FPE
] = "Floating Point Exception",
52 [EXCCODE_DBP
] = "Debug breakpoint",
53 [EXCCODE_BCE
] = "Bound Check Exception",
56 const char *loongarch_exception_name(int32_t exception
)
58 assert(excp_names
[exception
]);
59 return excp_names
[exception
];
62 void G_NORETURN
do_raise_exception(CPULoongArchState
*env
,
66 CPUState
*cs
= env_cpu(env
);
68 qemu_log_mask(CPU_LOG_INT
, "%s: %d (%s)\n",
71 loongarch_exception_name(exception
));
72 cs
->exception_index
= exception
;
74 cpu_loop_exit_restore(cs
, pc
);
77 static void loongarch_cpu_set_pc(CPUState
*cs
, vaddr value
)
79 LoongArchCPU
*cpu
= LOONGARCH_CPU(cs
);
80 CPULoongArchState
*env
= &cpu
->env
;
85 #ifndef CONFIG_USER_ONLY
86 #include "hw/loongarch/virt.h"
88 void loongarch_cpu_set_irq(void *opaque
, int irq
, int level
)
90 LoongArchCPU
*cpu
= opaque
;
91 CPULoongArchState
*env
= &cpu
->env
;
92 CPUState
*cs
= CPU(cpu
);
94 if (irq
< 0 || irq
>= N_IRQS
) {
98 env
->CSR_ESTAT
= deposit64(env
->CSR_ESTAT
, irq
, 1, level
!= 0);
100 if (FIELD_EX64(env
->CSR_ESTAT
, CSR_ESTAT
, IS
)) {
101 cpu_interrupt(cs
, CPU_INTERRUPT_HARD
);
103 cpu_reset_interrupt(cs
, CPU_INTERRUPT_HARD
);
107 static inline bool cpu_loongarch_hw_interrupts_enabled(CPULoongArchState
*env
)
111 ret
= (FIELD_EX64(env
->CSR_CRMD
, CSR_CRMD
, IE
) &&
112 !(FIELD_EX64(env
->CSR_DBG
, CSR_DBG
, DST
)));
117 /* Check if there is pending and not masked out interrupt */
118 static inline bool cpu_loongarch_hw_interrupts_pending(CPULoongArchState
*env
)
124 pending
= FIELD_EX64(env
->CSR_ESTAT
, CSR_ESTAT
, IS
);
125 status
= FIELD_EX64(env
->CSR_ECFG
, CSR_ECFG
, LIE
);
127 r
= (pending
& status
) != 0;
131 static void loongarch_cpu_do_interrupt(CPUState
*cs
)
133 LoongArchCPU
*cpu
= LOONGARCH_CPU(cs
);
134 CPULoongArchState
*env
= &cpu
->env
;
135 bool update_badinstr
= 1;
138 bool tlbfill
= FIELD_EX64(env
->CSR_TLBRERA
, CSR_TLBRERA
, ISTLBR
);
139 uint32_t vec_size
= FIELD_EX64(env
->CSR_ECFG
, CSR_ECFG
, VS
);
141 if (cs
->exception_index
!= EXCCODE_INT
) {
142 if (cs
->exception_index
< 0 ||
143 cs
->exception_index
> ARRAY_SIZE(excp_names
)) {
146 name
= excp_names
[cs
->exception_index
];
149 qemu_log_mask(CPU_LOG_INT
,
150 "%s enter: pc " TARGET_FMT_lx
" ERA " TARGET_FMT_lx
151 " TLBRERA " TARGET_FMT_lx
" %s exception\n", __func__
,
152 env
->pc
, env
->CSR_ERA
, env
->CSR_TLBRERA
, name
);
155 switch (cs
->exception_index
) {
157 env
->CSR_DBG
= FIELD_DP64(env
->CSR_DBG
, CSR_DBG
, DCL
, 1);
158 env
->CSR_DBG
= FIELD_DP64(env
->CSR_DBG
, CSR_DBG
, ECODE
, 0xC);
161 env
->CSR_DERA
= env
->pc
;
162 env
->CSR_DBG
= FIELD_DP64(env
->CSR_DBG
, CSR_DBG
, DST
, 1);
163 env
->pc
= env
->CSR_EENTRY
+ 0x480;
166 if (FIELD_EX64(env
->CSR_DBG
, CSR_DBG
, DST
)) {
167 env
->CSR_DBG
= FIELD_DP64(env
->CSR_DBG
, CSR_DBG
, DEI
, 1);
172 cause
= cs
->exception_index
;
181 env
->CSR_BADV
= env
->pc
;
190 cause
= cs
->exception_index
;
193 qemu_log("Error: exception(%d) '%s' has not been supported\n",
194 cs
->exception_index
, excp_names
[cs
->exception_index
]);
198 if (update_badinstr
) {
199 env
->CSR_BADI
= cpu_ldl_code(env
, env
->pc
);
202 /* Save PLV and IE */
204 env
->CSR_TLBRPRMD
= FIELD_DP64(env
->CSR_TLBRPRMD
, CSR_TLBRPRMD
, PPLV
,
205 FIELD_EX64(env
->CSR_CRMD
,
207 env
->CSR_TLBRPRMD
= FIELD_DP64(env
->CSR_TLBRPRMD
, CSR_TLBRPRMD
, PIE
,
208 FIELD_EX64(env
->CSR_CRMD
, CSR_CRMD
, IE
));
209 /* set the DA mode */
210 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, DA
, 1);
211 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, PG
, 0);
212 env
->CSR_TLBRERA
= FIELD_DP64(env
->CSR_TLBRERA
, CSR_TLBRERA
,
215 env
->CSR_ESTAT
= FIELD_DP64(env
->CSR_ESTAT
, CSR_ESTAT
, ECODE
, cause
);
216 env
->CSR_PRMD
= FIELD_DP64(env
->CSR_PRMD
, CSR_PRMD
, PPLV
,
217 FIELD_EX64(env
->CSR_CRMD
, CSR_CRMD
, PLV
));
218 env
->CSR_PRMD
= FIELD_DP64(env
->CSR_PRMD
, CSR_PRMD
, PIE
,
219 FIELD_EX64(env
->CSR_CRMD
, CSR_CRMD
, IE
));
220 env
->CSR_ERA
= env
->pc
;
223 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, PLV
, 0);
224 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, IE
, 0);
227 vec_size
= (1 << vec_size
) * 4;
230 if (cs
->exception_index
== EXCCODE_INT
) {
233 uint32_t pending
= FIELD_EX64(env
->CSR_ESTAT
, CSR_ESTAT
, IS
);
234 pending
&= FIELD_EX64(env
->CSR_ECFG
, CSR_ECFG
, LIE
);
236 /* Find the highest-priority interrupt. */
237 vector
= 31 - clz32(pending
);
238 env
->pc
= env
->CSR_EENTRY
+ (EXCCODE_EXTERNAL_INT
+ vector
) * vec_size
;
239 qemu_log_mask(CPU_LOG_INT
,
240 "%s: PC " TARGET_FMT_lx
" ERA " TARGET_FMT_lx
241 " cause %d\n" " A " TARGET_FMT_lx
" D "
242 TARGET_FMT_lx
" vector = %d ExC " TARGET_FMT_lx
"ExS"
244 __func__
, env
->pc
, env
->CSR_ERA
,
245 cause
, env
->CSR_BADV
, env
->CSR_DERA
, vector
,
246 env
->CSR_ECFG
, env
->CSR_ESTAT
);
249 env
->pc
= env
->CSR_TLBRENTRY
;
251 env
->pc
= env
->CSR_EENTRY
;
252 env
->pc
+= cause
* vec_size
;
254 qemu_log_mask(CPU_LOG_INT
,
255 "%s: PC " TARGET_FMT_lx
" ERA " TARGET_FMT_lx
256 " cause %d%s\n, ESTAT " TARGET_FMT_lx
257 " EXCFG " TARGET_FMT_lx
" BADVA " TARGET_FMT_lx
258 "BADI " TARGET_FMT_lx
" SYS_NUM " TARGET_FMT_lu
259 " cpu %d asid " TARGET_FMT_lx
"\n", __func__
, env
->pc
,
260 tlbfill
? env
->CSR_TLBRERA
: env
->CSR_ERA
,
261 cause
, tlbfill
? "(refill)" : "", env
->CSR_ESTAT
,
263 tlbfill
? env
->CSR_TLBRBADV
: env
->CSR_BADV
,
264 env
->CSR_BADI
, env
->gpr
[11], cs
->cpu_index
,
267 cs
->exception_index
= -1;
270 static void loongarch_cpu_do_transaction_failed(CPUState
*cs
, hwaddr physaddr
,
271 vaddr addr
, unsigned size
,
272 MMUAccessType access_type
,
273 int mmu_idx
, MemTxAttrs attrs
,
274 MemTxResult response
,
277 LoongArchCPU
*cpu
= LOONGARCH_CPU(cs
);
278 CPULoongArchState
*env
= &cpu
->env
;
280 if (access_type
== MMU_INST_FETCH
) {
281 do_raise_exception(env
, EXCCODE_ADEF
, retaddr
);
283 do_raise_exception(env
, EXCCODE_ADEM
, retaddr
);
287 static bool loongarch_cpu_exec_interrupt(CPUState
*cs
, int interrupt_request
)
289 if (interrupt_request
& CPU_INTERRUPT_HARD
) {
290 LoongArchCPU
*cpu
= LOONGARCH_CPU(cs
);
291 CPULoongArchState
*env
= &cpu
->env
;
293 if (cpu_loongarch_hw_interrupts_enabled(env
) &&
294 cpu_loongarch_hw_interrupts_pending(env
)) {
296 cs
->exception_index
= EXCCODE_INT
;
297 loongarch_cpu_do_interrupt(cs
);
306 static void loongarch_cpu_synchronize_from_tb(CPUState
*cs
,
307 const TranslationBlock
*tb
)
309 LoongArchCPU
*cpu
= LOONGARCH_CPU(cs
);
310 CPULoongArchState
*env
= &cpu
->env
;
314 #endif /* CONFIG_TCG */
316 static bool loongarch_cpu_has_work(CPUState
*cs
)
318 #ifdef CONFIG_USER_ONLY
321 LoongArchCPU
*cpu
= LOONGARCH_CPU(cs
);
322 CPULoongArchState
*env
= &cpu
->env
;
323 bool has_work
= false;
325 if ((cs
->interrupt_request
& CPU_INTERRUPT_HARD
) &&
326 cpu_loongarch_hw_interrupts_pending(env
)) {
334 static void loongarch_la464_initfn(Object
*obj
)
336 LoongArchCPU
*cpu
= LOONGARCH_CPU(obj
);
337 CPULoongArchState
*env
= &cpu
->env
;
340 for (i
= 0; i
< 21; i
++) {
341 env
->cpucfg
[i
] = 0x0;
344 env
->cpucfg
[0] = 0x14c010; /* PRID */
347 data
= FIELD_DP32(data
, CPUCFG1
, ARCH
, 2);
348 data
= FIELD_DP32(data
, CPUCFG1
, PGMMU
, 1);
349 data
= FIELD_DP32(data
, CPUCFG1
, IOCSR
, 1);
350 data
= FIELD_DP32(data
, CPUCFG1
, PALEN
, 0x2f);
351 data
= FIELD_DP32(data
, CPUCFG1
, VALEN
, 0x2f);
352 data
= FIELD_DP32(data
, CPUCFG1
, UAL
, 1);
353 data
= FIELD_DP32(data
, CPUCFG1
, RI
, 1);
354 data
= FIELD_DP32(data
, CPUCFG1
, EP
, 1);
355 data
= FIELD_DP32(data
, CPUCFG1
, RPLV
, 1);
356 data
= FIELD_DP32(data
, CPUCFG1
, HP
, 1);
357 data
= FIELD_DP32(data
, CPUCFG1
, IOCSR_BRD
, 1);
358 env
->cpucfg
[1] = data
;
361 data
= FIELD_DP32(data
, CPUCFG2
, FP
, 1);
362 data
= FIELD_DP32(data
, CPUCFG2
, FP_SP
, 1);
363 data
= FIELD_DP32(data
, CPUCFG2
, FP_DP
, 1);
364 data
= FIELD_DP32(data
, CPUCFG2
, FP_VER
, 1);
365 data
= FIELD_DP32(data
, CPUCFG2
, LLFTP
, 1);
366 data
= FIELD_DP32(data
, CPUCFG2
, LLFTP_VER
, 1);
367 data
= FIELD_DP32(data
, CPUCFG2
, LAM
, 1);
368 env
->cpucfg
[2] = data
;
370 env
->cpucfg
[4] = 100 * 1000 * 1000; /* Crystal frequency */
373 data
= FIELD_DP32(data
, CPUCFG5
, CC_MUL
, 1);
374 data
= FIELD_DP32(data
, CPUCFG5
, CC_DIV
, 1);
375 env
->cpucfg
[5] = data
;
378 data
= FIELD_DP32(data
, CPUCFG16
, L1_IUPRE
, 1);
379 data
= FIELD_DP32(data
, CPUCFG16
, L1_DPRE
, 1);
380 data
= FIELD_DP32(data
, CPUCFG16
, L2_IUPRE
, 1);
381 data
= FIELD_DP32(data
, CPUCFG16
, L2_IUUNIFY
, 1);
382 data
= FIELD_DP32(data
, CPUCFG16
, L2_IUPRIV
, 1);
383 data
= FIELD_DP32(data
, CPUCFG16
, L3_IUPRE
, 1);
384 data
= FIELD_DP32(data
, CPUCFG16
, L3_IUUNIFY
, 1);
385 data
= FIELD_DP32(data
, CPUCFG16
, L3_IUINCL
, 1);
386 env
->cpucfg
[16] = data
;
389 data
= FIELD_DP32(data
, CPUCFG17
, L1IU_WAYS
, 3);
390 data
= FIELD_DP32(data
, CPUCFG17
, L1IU_SETS
, 8);
391 data
= FIELD_DP32(data
, CPUCFG17
, L1IU_SIZE
, 6);
392 env
->cpucfg
[17] = data
;
395 data
= FIELD_DP32(data
, CPUCFG18
, L1D_WAYS
, 3);
396 data
= FIELD_DP32(data
, CPUCFG18
, L1D_SETS
, 8);
397 data
= FIELD_DP32(data
, CPUCFG18
, L1D_SIZE
, 6);
398 env
->cpucfg
[18] = data
;
401 data
= FIELD_DP32(data
, CPUCFG19
, L2IU_WAYS
, 15);
402 data
= FIELD_DP32(data
, CPUCFG19
, L2IU_SETS
, 8);
403 data
= FIELD_DP32(data
, CPUCFG19
, L2IU_SIZE
, 6);
404 env
->cpucfg
[19] = data
;
407 data
= FIELD_DP32(data
, CPUCFG20
, L3IU_WAYS
, 15);
408 data
= FIELD_DP32(data
, CPUCFG20
, L3IU_SETS
, 14);
409 data
= FIELD_DP32(data
, CPUCFG20
, L3IU_SETS
, 6);
410 env
->cpucfg
[20] = data
;
412 env
->CSR_ASID
= FIELD_DP64(0, CSR_ASID
, ASIDBITS
, 0xa);
415 static void loongarch_cpu_list_entry(gpointer data
, gpointer user_data
)
417 const char *typename
= object_class_get_name(OBJECT_CLASS(data
));
419 qemu_printf("%s\n", typename
);
422 void loongarch_cpu_list(void)
425 list
= object_class_get_list_sorted(TYPE_LOONGARCH_CPU
, false);
426 g_slist_foreach(list
, loongarch_cpu_list_entry
, NULL
);
430 static void loongarch_cpu_reset(DeviceState
*dev
)
432 CPUState
*cs
= CPU(dev
);
433 LoongArchCPU
*cpu
= LOONGARCH_CPU(cs
);
434 LoongArchCPUClass
*lacc
= LOONGARCH_CPU_GET_CLASS(cpu
);
435 CPULoongArchState
*env
= &cpu
->env
;
437 lacc
->parent_reset(dev
);
439 env
->fcsr0_mask
= FCSR0_M1
| FCSR0_M2
| FCSR0_M3
;
443 /* Set csr registers value after reset */
444 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, PLV
, 0);
445 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, IE
, 0);
446 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, DA
, 1);
447 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, PG
, 0);
448 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, DATF
, 1);
449 env
->CSR_CRMD
= FIELD_DP64(env
->CSR_CRMD
, CSR_CRMD
, DATM
, 1);
451 env
->CSR_EUEN
= FIELD_DP64(env
->CSR_EUEN
, CSR_EUEN
, FPE
, 0);
452 env
->CSR_EUEN
= FIELD_DP64(env
->CSR_EUEN
, CSR_EUEN
, SXE
, 0);
453 env
->CSR_EUEN
= FIELD_DP64(env
->CSR_EUEN
, CSR_EUEN
, ASXE
, 0);
454 env
->CSR_EUEN
= FIELD_DP64(env
->CSR_EUEN
, CSR_EUEN
, BTE
, 0);
458 env
->CSR_ECFG
= FIELD_DP64(env
->CSR_ECFG
, CSR_ECFG
, VS
, 0);
459 env
->CSR_ECFG
= FIELD_DP64(env
->CSR_ECFG
, CSR_ECFG
, LIE
, 0);
461 env
->CSR_ESTAT
= env
->CSR_ESTAT
& (~MAKE_64BIT_MASK(0, 2));
462 env
->CSR_RVACFG
= FIELD_DP64(env
->CSR_RVACFG
, CSR_RVACFG
, RBITS
, 0);
463 env
->CSR_TCFG
= FIELD_DP64(env
->CSR_TCFG
, CSR_TCFG
, EN
, 0);
464 env
->CSR_LLBCTL
= FIELD_DP64(env
->CSR_LLBCTL
, CSR_LLBCTL
, KLO
, 0);
465 env
->CSR_TLBRERA
= FIELD_DP64(env
->CSR_TLBRERA
, CSR_TLBRERA
, ISTLBR
, 0);
466 env
->CSR_MERRCTL
= FIELD_DP64(env
->CSR_MERRCTL
, CSR_MERRCTL
, ISMERR
, 0);
468 env
->CSR_PRCFG3
= FIELD_DP64(env
->CSR_PRCFG3
, CSR_PRCFG3
, TLB_TYPE
, 2);
469 env
->CSR_PRCFG3
= FIELD_DP64(env
->CSR_PRCFG3
, CSR_PRCFG3
, MTLB_ENTRY
, 63);
470 env
->CSR_PRCFG3
= FIELD_DP64(env
->CSR_PRCFG3
, CSR_PRCFG3
, STLB_WAYS
, 7);
471 env
->CSR_PRCFG3
= FIELD_DP64(env
->CSR_PRCFG3
, CSR_PRCFG3
, STLB_SETS
, 8);
473 for (n
= 0; n
< 4; n
++) {
474 env
->CSR_DMW
[n
] = FIELD_DP64(env
->CSR_DMW
[n
], CSR_DMW
, PLV0
, 0);
475 env
->CSR_DMW
[n
] = FIELD_DP64(env
->CSR_DMW
[n
], CSR_DMW
, PLV1
, 0);
476 env
->CSR_DMW
[n
] = FIELD_DP64(env
->CSR_DMW
[n
], CSR_DMW
, PLV2
, 0);
477 env
->CSR_DMW
[n
] = FIELD_DP64(env
->CSR_DMW
[n
], CSR_DMW
, PLV3
, 0);
480 #ifndef CONFIG_USER_ONLY
481 env
->pc
= 0x1c000000;
484 restore_fp_status(env
);
485 cs
->exception_index
= -1;
488 static void loongarch_cpu_disas_set_info(CPUState
*s
, disassemble_info
*info
)
490 info
->print_insn
= print_insn_loongarch
;
493 static void loongarch_cpu_realizefn(DeviceState
*dev
, Error
**errp
)
495 CPUState
*cs
= CPU(dev
);
496 LoongArchCPUClass
*lacc
= LOONGARCH_CPU_GET_CLASS(dev
);
497 Error
*local_err
= NULL
;
499 cpu_exec_realizefn(cs
, &local_err
);
500 if (local_err
!= NULL
) {
501 error_propagate(errp
, local_err
);
505 loongarch_cpu_register_gdb_regs_for_features(cs
);
510 lacc
->parent_realize(dev
, errp
);
513 #ifndef CONFIG_USER_ONLY
514 static void loongarch_qemu_write(void *opaque
, hwaddr addr
,
515 uint64_t val
, unsigned size
)
519 static uint64_t loongarch_qemu_read(void *opaque
, hwaddr addr
, unsigned size
)
523 return 1ULL << IOCSRF_MSI
| 1ULL << IOCSRF_EXTIOI
|
524 1ULL << IOCSRF_CSRIPI
;
526 return 0x6e6f73676e6f6f4cULL
; /* "Loongson" */
528 return 0x303030354133ULL
; /* "3A5000" */
530 return 1ULL << IOCSRM_EXTIOI_EN
;
535 static const MemoryRegionOps loongarch_qemu_ops
= {
536 .read
= loongarch_qemu_read
,
537 .write
= loongarch_qemu_write
,
538 .endianness
= DEVICE_LITTLE_ENDIAN
,
540 .min_access_size
= 4,
541 .max_access_size
= 8,
544 .min_access_size
= 8,
545 .max_access_size
= 8,
550 static void loongarch_cpu_init(Object
*obj
)
552 LoongArchCPU
*cpu
= LOONGARCH_CPU(obj
);
554 cpu_set_cpustate_pointers(cpu
);
556 #ifndef CONFIG_USER_ONLY
557 CPULoongArchState
*env
= &cpu
->env
;
558 qdev_init_gpio_in(DEVICE(cpu
), loongarch_cpu_set_irq
, N_IRQS
);
559 timer_init_ns(&cpu
->timer
, QEMU_CLOCK_VIRTUAL
,
560 &loongarch_constant_timer_cb
, cpu
);
561 memory_region_init_io(&env
->system_iocsr
, OBJECT(cpu
), NULL
,
562 env
, "iocsr", UINT64_MAX
);
563 address_space_init(&env
->address_space_iocsr
, &env
->system_iocsr
, "IOCSR");
564 memory_region_init_io(&env
->iocsr_mem
, OBJECT(cpu
), &loongarch_qemu_ops
,
565 NULL
, "iocsr_misc", 0x428);
566 memory_region_add_subregion(&env
->system_iocsr
, 0, &env
->iocsr_mem
);
570 static ObjectClass
*loongarch_cpu_class_by_name(const char *cpu_model
)
575 typename
= g_strdup_printf(LOONGARCH_CPU_TYPE_NAME("%s"), cpu_model
);
576 oc
= object_class_by_name(typename
);
581 void loongarch_cpu_dump_state(CPUState
*cs
, FILE *f
, int flags
)
583 LoongArchCPU
*cpu
= LOONGARCH_CPU(cs
);
584 CPULoongArchState
*env
= &cpu
->env
;
587 qemu_fprintf(f
, " PC=%016" PRIx64
" ", env
->pc
);
588 qemu_fprintf(f
, " FCSR0 0x%08x fp_status 0x%02x\n", env
->fcsr0
,
589 get_float_exception_flags(&env
->fp_status
));
592 for (i
= 0; i
< 32; i
++) {
594 qemu_fprintf(f
, " GPR%02d:", i
);
596 qemu_fprintf(f
, " %s %016" PRIx64
, regnames
[i
], env
->gpr
[i
]);
598 qemu_fprintf(f
, "\n");
602 qemu_fprintf(f
, "CRMD=%016" PRIx64
"\n", env
->CSR_CRMD
);
603 qemu_fprintf(f
, "PRMD=%016" PRIx64
"\n", env
->CSR_PRMD
);
604 qemu_fprintf(f
, "EUEN=%016" PRIx64
"\n", env
->CSR_EUEN
);
605 qemu_fprintf(f
, "ESTAT=%016" PRIx64
"\n", env
->CSR_ESTAT
);
606 qemu_fprintf(f
, "ERA=%016" PRIx64
"\n", env
->CSR_ERA
);
607 qemu_fprintf(f
, "BADV=%016" PRIx64
"\n", env
->CSR_BADV
);
608 qemu_fprintf(f
, "BADI=%016" PRIx64
"\n", env
->CSR_BADI
);
609 qemu_fprintf(f
, "EENTRY=%016" PRIx64
"\n", env
->CSR_EENTRY
);
610 qemu_fprintf(f
, "PRCFG1=%016" PRIx64
", PRCFG2=%016" PRIx64
","
611 " PRCFG3=%016" PRIx64
"\n",
612 env
->CSR_PRCFG1
, env
->CSR_PRCFG3
, env
->CSR_PRCFG3
);
613 qemu_fprintf(f
, "TLBRENTRY=%016" PRIx64
"\n", env
->CSR_TLBRENTRY
);
614 qemu_fprintf(f
, "TLBRBADV=%016" PRIx64
"\n", env
->CSR_TLBRBADV
);
615 qemu_fprintf(f
, "TLBRERA=%016" PRIx64
"\n", env
->CSR_TLBRERA
);
618 if (flags
& CPU_DUMP_FPU
) {
619 for (i
= 0; i
< 32; i
++) {
620 qemu_fprintf(f
, " %s %016" PRIx64
, fregnames
[i
], env
->fpr
[i
]);
622 qemu_fprintf(f
, "\n");
629 #include "hw/core/tcg-cpu-ops.h"
631 static struct TCGCPUOps loongarch_tcg_ops
= {
632 .initialize
= loongarch_translate_init
,
633 .synchronize_from_tb
= loongarch_cpu_synchronize_from_tb
,
635 #ifndef CONFIG_USER_ONLY
636 .tlb_fill
= loongarch_cpu_tlb_fill
,
637 .cpu_exec_interrupt
= loongarch_cpu_exec_interrupt
,
638 .do_interrupt
= loongarch_cpu_do_interrupt
,
639 .do_transaction_failed
= loongarch_cpu_do_transaction_failed
,
642 #endif /* CONFIG_TCG */
644 #ifndef CONFIG_USER_ONLY
645 #include "hw/core/sysemu-cpu-ops.h"
647 static const struct SysemuCPUOps loongarch_sysemu_ops
= {
648 .get_phys_page_debug
= loongarch_cpu_get_phys_page_debug
,
652 static void loongarch_cpu_class_init(ObjectClass
*c
, void *data
)
654 LoongArchCPUClass
*lacc
= LOONGARCH_CPU_CLASS(c
);
655 CPUClass
*cc
= CPU_CLASS(c
);
656 DeviceClass
*dc
= DEVICE_CLASS(c
);
658 device_class_set_parent_realize(dc
, loongarch_cpu_realizefn
,
659 &lacc
->parent_realize
);
660 device_class_set_parent_reset(dc
, loongarch_cpu_reset
, &lacc
->parent_reset
);
662 cc
->class_by_name
= loongarch_cpu_class_by_name
;
663 cc
->has_work
= loongarch_cpu_has_work
;
664 cc
->dump_state
= loongarch_cpu_dump_state
;
665 cc
->set_pc
= loongarch_cpu_set_pc
;
666 #ifndef CONFIG_USER_ONLY
667 dc
->vmsd
= &vmstate_loongarch_cpu
;
668 cc
->sysemu_ops
= &loongarch_sysemu_ops
;
670 cc
->disas_set_info
= loongarch_cpu_disas_set_info
;
671 cc
->gdb_read_register
= loongarch_cpu_gdb_read_register
;
672 cc
->gdb_write_register
= loongarch_cpu_gdb_write_register
;
673 cc
->disas_set_info
= loongarch_cpu_disas_set_info
;
674 cc
->gdb_num_core_regs
= 34;
675 cc
->gdb_core_xml_file
= "loongarch-base64.xml";
676 cc
->gdb_stop_before_watchpoint
= true;
679 cc
->tcg_ops
= &loongarch_tcg_ops
;
683 #define DEFINE_LOONGARCH_CPU_TYPE(model, initfn) \
685 .parent = TYPE_LOONGARCH_CPU, \
686 .instance_init = initfn, \
687 .name = LOONGARCH_CPU_TYPE_NAME(model), \
690 static const TypeInfo loongarch_cpu_type_infos
[] = {
692 .name
= TYPE_LOONGARCH_CPU
,
694 .instance_size
= sizeof(LoongArchCPU
),
695 .instance_init
= loongarch_cpu_init
,
698 .class_size
= sizeof(LoongArchCPUClass
),
699 .class_init
= loongarch_cpu_class_init
,
701 DEFINE_LOONGARCH_CPU_TYPE("la464", loongarch_la464_initfn
),
704 DEFINE_TYPES(loongarch_cpu_type_infos
)
706 static void loongarch_cpu_add_definition(gpointer data
, gpointer user_data
)
708 ObjectClass
*oc
= data
;
709 CpuDefinitionInfoList
**cpu_list
= user_data
;
710 CpuDefinitionInfo
*info
= g_new0(CpuDefinitionInfo
, 1);
711 const char *typename
= object_class_get_name(oc
);
713 info
->name
= g_strndup(typename
,
714 strlen(typename
) - strlen("-" TYPE_LOONGARCH_CPU
));
715 info
->q_typename
= g_strdup(typename
);
717 QAPI_LIST_PREPEND(*cpu_list
, info
);
720 CpuDefinitionInfoList
*qmp_query_cpu_definitions(Error
**errp
)
722 CpuDefinitionInfoList
*cpu_list
= NULL
;
725 list
= object_class_get_list(TYPE_LOONGARCH_CPU
, false);
726 g_slist_foreach(list
, loongarch_cpu_add_definition
, &cpu_list
);