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dc5bd18f MC |
1 | /* |
2 | * QEMU RISC-V CPU | |
3 | * | |
4 | * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu | |
5 | * Copyright (c) 2017-2018 SiFive, Inc. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms and conditions of the GNU General Public License, | |
9 | * version 2 or later, as published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef RISCV_CPU_H | |
21 | #define RISCV_CPU_H | |
22 | ||
2e5b09fd | 23 | #include "hw/core/cpu.h" |
2b7168fc | 24 | #include "hw/registerfields.h" |
32fa1776 | 25 | #include "hw/qdev-properties.h" |
dc5bd18f | 26 | #include "exec/cpu-defs.h" |
69242e7e | 27 | #include "qemu/cpu-float.h" |
db1015e9 | 28 | #include "qom/object.h" |
961738ff | 29 | #include "qemu/int128.h" |
e91a7227 | 30 | #include "cpu_bits.h" |
b902ff29 | 31 | #include "cpu_cfg.h" |
6f23aaeb | 32 | #include "qapi/qapi-types-common.h" |
85840bd2 | 33 | #include "cpu-qom.h" |
dc5bd18f | 34 | |
9348028e PMD |
35 | typedef struct CPUArchState CPURISCVState; |
36 | ||
66125f93 PMD |
37 | #define CPU_RESOLVING_TYPE TYPE_RISCV_CPU |
38 | ||
27a6e78e PMD |
39 | #if defined(TARGET_RISCV32) |
40 | # define TYPE_RISCV_CPU_BASE TYPE_RISCV_CPU_BASE32 | |
41 | #elif defined(TARGET_RISCV64) | |
42 | # define TYPE_RISCV_CPU_BASE TYPE_RISCV_CPU_BASE64 | |
43 | #endif | |
44 | ||
74433bf0 RH |
45 | #define TCG_GUEST_DEFAULT_MO 0 |
46 | ||
62cf0245 AP |
47 | /* |
48 | * RISC-V-specific extra insn start words: | |
49 | * 1: Original instruction opcode | |
50 | */ | |
51 | #define TARGET_INSN_START_EXTRA_WORDS 1 | |
52 | ||
dc5bd18f MC |
53 | #define RV(x) ((target_ulong)1 << (x - 'A')) |
54 | ||
ed7e6182 | 55 | /* |
efa365b7 | 56 | * Update misa_bits[], misa_ext_info_arr[] and misa_ext_cfgs[] |
ed7e6182 DHB |
57 | * when adding new MISA bits here. |
58 | */ | |
dc5bd18f | 59 | #define RVI RV('I') |
79f86934 | 60 | #define RVE RV('E') /* E and I are mutually exclusive */ |
dc5bd18f MC |
61 | #define RVM RV('M') |
62 | #define RVA RV('A') | |
63 | #define RVF RV('F') | |
64 | #define RVD RV('D') | |
ad9e5aa2 | 65 | #define RVV RV('V') |
dc5bd18f MC |
66 | #define RVC RV('C') |
67 | #define RVS RV('S') | |
68 | #define RVU RV('U') | |
af1fa003 | 69 | #define RVH RV('H') |
53dcea58 | 70 | #define RVJ RV('J') |
4f13abcb | 71 | #define RVG RV('G') |
dc5bd18f | 72 | |
efa365b7 | 73 | extern const uint32_t misa_bits[]; |
ed7e6182 DHB |
74 | const char *riscv_get_misa_ext_name(uint32_t bit); |
75 | const char *riscv_get_misa_ext_description(uint32_t bit); | |
dc5bd18f | 76 | |
238fd586 DHB |
77 | #define CPU_CFG_OFFSET(_prop) offsetof(struct RISCVCPUConfig, _prop) |
78 | ||
a46d410c AP |
79 | /* Privileged specification version */ |
80 | enum { | |
81 | PRIV_VERSION_1_10_0 = 0, | |
82 | PRIV_VERSION_1_11_0, | |
3a4af26d | 83 | PRIV_VERSION_1_12_0, |
b9a2b98e DHB |
84 | |
85 | PRIV_VERSION_LATEST = PRIV_VERSION_1_12_0, | |
a46d410c | 86 | }; |
dc5bd18f | 87 | |
9ec6622d | 88 | #define VEXT_VERSION_1_00_0 0x00010000 |
32931383 | 89 | |
33a9a57d YJ |
90 | enum { |
91 | TRANSLATE_SUCCESS, | |
92 | TRANSLATE_FAIL, | |
93 | TRANSLATE_PMP_FAIL, | |
94 | TRANSLATE_G_STAGE_FAIL | |
95 | }; | |
96 | ||
42967f40 LZ |
97 | /* Extension context status */ |
98 | typedef enum { | |
99 | EXT_STATUS_DISABLED = 0, | |
100 | EXT_STATUS_INITIAL, | |
101 | EXT_STATUS_CLEAN, | |
102 | EXT_STATUS_DIRTY, | |
103 | } RISCVExtStatus; | |
104 | ||
dc5bd18f MC |
105 | #define MMU_USER_IDX 3 |
106 | ||
107 | #define MAX_RISCV_PMPS (16) | |
108 | ||
bbf3d1b4 | 109 | #if !defined(CONFIG_USER_ONLY) |
dc5bd18f | 110 | #include "pmp.h" |
95799e36 | 111 | #include "debug.h" |
bbf3d1b4 | 112 | #endif |
dc5bd18f | 113 | |
8a4b5257 | 114 | #define RV_VLEN_MAX 1024 |
3780e337 | 115 | #define RV_MAX_MHPMEVENTS 32 |
621f35bb | 116 | #define RV_MAX_MHPMCOUNTERS 32 |
ad9e5aa2 | 117 | |
33f1beaf FC |
118 | FIELD(VTYPE, VLMUL, 0, 3) |
119 | FIELD(VTYPE, VSEW, 3, 3) | |
3479a814 FC |
120 | FIELD(VTYPE, VTA, 6, 1) |
121 | FIELD(VTYPE, VMA, 7, 1) | |
33f1beaf FC |
122 | FIELD(VTYPE, VEDIV, 8, 2) |
123 | FIELD(VTYPE, RESERVED, 10, sizeof(target_ulong) * 8 - 11) | |
2b7168fc | 124 | |
3780e337 AP |
125 | typedef struct PMUCTRState { |
126 | /* Current value of a counter */ | |
127 | target_ulong mhpmcounter_val; | |
3b57254d | 128 | /* Current value of a counter in RV32 */ |
3780e337 AP |
129 | target_ulong mhpmcounterh_val; |
130 | /* Snapshot values of counter */ | |
131 | target_ulong mhpmcounter_prev; | |
132 | /* Snapshort value of a counter in RV32 */ | |
133 | target_ulong mhpmcounterh_prev; | |
134 | bool started; | |
14664483 AP |
135 | /* Value beyond UINT32_MAX/UINT64_MAX before overflow interrupt trigger */ |
136 | target_ulong irq_overflow_left; | |
3780e337 AP |
137 | } PMUCTRState; |
138 | ||
1ea4a06a | 139 | struct CPUArchState { |
dc5bd18f | 140 | target_ulong gpr[32]; |
2b547084 | 141 | target_ulong gprh[32]; /* 64 top bits of the 128-bit registers */ |
ad9e5aa2 LZ |
142 | |
143 | /* vector coprocessor state. */ | |
144 | uint64_t vreg[32 * RV_VLEN_MAX / 64] QEMU_ALIGNED(16); | |
145 | target_ulong vxrm; | |
146 | target_ulong vxsat; | |
147 | target_ulong vl; | |
148 | target_ulong vstart; | |
149 | target_ulong vtype; | |
d96a271a | 150 | bool vill; |
ad9e5aa2 | 151 | |
dc5bd18f MC |
152 | target_ulong pc; |
153 | target_ulong load_res; | |
154 | target_ulong load_val; | |
155 | ||
04bc3027 PMD |
156 | /* Floating-Point state */ |
157 | uint64_t fpr[32]; /* assume both F and D extensions */ | |
dc5bd18f | 158 | target_ulong frm; |
04bc3027 | 159 | float_status fp_status; |
dc5bd18f MC |
160 | |
161 | target_ulong badaddr; | |
62cf0245 | 162 | target_ulong bins; |
48eaeb56 | 163 | |
36a18664 | 164 | target_ulong guest_phys_fault_addr; |
dc5bd18f | 165 | |
dc5bd18f | 166 | target_ulong priv_ver; |
d2c1a177 | 167 | target_ulong bext_ver; |
32931383 | 168 | target_ulong vext_ver; |
e91a7227 RH |
169 | |
170 | /* RISCVMXL, but uint32_t for vmstate migration */ | |
171 | uint32_t misa_mxl; /* current mxl */ | |
172 | uint32_t misa_mxl_max; /* max mxl for this cpu */ | |
173 | uint32_t misa_ext; /* current extensions */ | |
174 | uint32_t misa_ext_mask; /* max ext for this cpu */ | |
440544e1 | 175 | uint32_t xl; /* current xlen */ |
dc5bd18f | 176 | |
b3a5d1fb FP |
177 | /* 128-bit helpers upper part return value */ |
178 | target_ulong retxh; | |
179 | ||
ce3af0bb WL |
180 | target_ulong jvt; |
181 | ||
5836c3ec KC |
182 | #ifdef CONFIG_USER_ONLY |
183 | uint32_t elf_flags; | |
184 | #endif | |
185 | ||
dc5bd18f MC |
186 | #ifndef CONFIG_USER_ONLY |
187 | target_ulong priv; | |
ef6bb7b6 | 188 | /* This contains QEMU specific information about the virt state. */ |
b3c5077b | 189 | bool virt_enabled; |
cd032fe7 | 190 | target_ulong geilen; |
277b210d | 191 | uint64_t resetvec; |
dc5bd18f MC |
192 | |
193 | target_ulong mhartid; | |
284d697c YJ |
194 | /* |
195 | * For RV32 this is 32-bit mstatus and 32-bit mstatush. | |
196 | * For RV64 this is a 64-bit mstatus. | |
197 | */ | |
198 | uint64_t mstatus; | |
85ba724f | 199 | |
d028ac75 | 200 | uint64_t mip; |
33fe584f AF |
201 | /* |
202 | * MIP contains the software writable version of SEIP ORed with the | |
203 | * external interrupt value. The MIP register is always up-to-date. | |
204 | * To keep track of the current source, we also save booleans of the values | |
205 | * here. | |
206 | */ | |
207 | bool external_seip; | |
208 | bool software_seip; | |
66e594f2 | 209 | |
d028ac75 | 210 | uint64_t miclaim; |
85ba724f | 211 | |
d028ac75 AP |
212 | uint64_t mie; |
213 | uint64_t mideleg; | |
dc5bd18f | 214 | |
1697837e RK |
215 | /* |
216 | * When mideleg[i]=0 and mvien[i]=1, sie[i] is no more | |
217 | * alias of mie[i] and needs to be maintained separatly. | |
218 | */ | |
219 | uint64_t sie; | |
220 | ||
40336d5b RK |
221 | /* |
222 | * When hideleg[i]=0 and hvien[i]=1, vsie[i] is no more | |
223 | * alias of sie[i] (mie[i]) and needs to be maintained separatly. | |
224 | */ | |
225 | uint64_t vsie; | |
226 | ||
dc5bd18f | 227 | target_ulong satp; /* since: priv-1.10.0 */ |
ac12b601 | 228 | target_ulong stval; |
dc5bd18f MC |
229 | target_ulong medeleg; |
230 | ||
231 | target_ulong stvec; | |
232 | target_ulong sepc; | |
233 | target_ulong scause; | |
234 | ||
235 | target_ulong mtvec; | |
236 | target_ulong mepc; | |
237 | target_ulong mcause; | |
238 | target_ulong mtval; /* since: priv-1.10.0 */ | |
239 | ||
43dc93af AP |
240 | /* Machine and Supervisor interrupt priorities */ |
241 | uint8_t miprio[64]; | |
242 | uint8_t siprio[64]; | |
243 | ||
d1ceff40 AP |
244 | /* AIA CSRs */ |
245 | target_ulong miselect; | |
246 | target_ulong siselect; | |
1697837e RK |
247 | uint64_t mvien; |
248 | uint64_t mvip; | |
d1ceff40 | 249 | |
bd023ce3 AF |
250 | /* Hypervisor CSRs */ |
251 | target_ulong hstatus; | |
252 | target_ulong hedeleg; | |
d028ac75 | 253 | uint64_t hideleg; |
bd023ce3 AF |
254 | target_ulong hcounteren; |
255 | target_ulong htval; | |
256 | target_ulong htinst; | |
257 | target_ulong hgatp; | |
cd032fe7 AP |
258 | target_ulong hgeie; |
259 | target_ulong hgeip; | |
c6957248 | 260 | uint64_t htimedelta; |
40336d5b RK |
261 | uint64_t hvien; |
262 | ||
263 | /* | |
264 | * Bits VSSIP, VSTIP and VSEIP in hvip are maintained in mip. Other bits | |
265 | * from 0:12 are reserved. Bits 13:63 are not aliased and must be separately | |
266 | * maintain in hvip. | |
267 | */ | |
268 | uint64_t hvip; | |
bd023ce3 | 269 | |
43dc93af | 270 | /* Hypervisor controlled virtual interrupt priorities */ |
2b602398 | 271 | target_ulong hvictl; |
43dc93af AP |
272 | uint8_t hviprio[64]; |
273 | ||
2c64ab66 FP |
274 | /* Upper 64-bits of 128-bit CSRs */ |
275 | uint64_t mscratchh; | |
276 | uint64_t sscratchh; | |
277 | ||
bd023ce3 | 278 | /* Virtual CSRs */ |
284d697c YJ |
279 | /* |
280 | * For RV32 this is 32-bit vsstatus and 32-bit vsstatush. | |
281 | * For RV64 this is a 64-bit vsstatus. | |
282 | */ | |
283 | uint64_t vsstatus; | |
bd023ce3 AF |
284 | target_ulong vstvec; |
285 | target_ulong vsscratch; | |
286 | target_ulong vsepc; | |
287 | target_ulong vscause; | |
288 | target_ulong vstval; | |
289 | target_ulong vsatp; | |
290 | ||
d1ceff40 AP |
291 | /* AIA VS-mode CSRs */ |
292 | target_ulong vsiselect; | |
293 | ||
bd023ce3 AF |
294 | target_ulong mtval2; |
295 | target_ulong mtinst; | |
296 | ||
66e594f2 AF |
297 | /* HS Backup CSRs */ |
298 | target_ulong stvec_hs; | |
299 | target_ulong sscratch_hs; | |
300 | target_ulong sepc_hs; | |
301 | target_ulong scause_hs; | |
302 | target_ulong stval_hs; | |
303 | target_ulong satp_hs; | |
284d697c | 304 | uint64_t mstatus_hs; |
66e594f2 | 305 | |
3b57254d WL |
306 | /* |
307 | * Signals whether the current exception occurred with two-stage address | |
308 | * translation active. | |
309 | */ | |
ec352d0c | 310 | bool two_stage_lookup; |
8e2aa21b AP |
311 | /* |
312 | * Signals whether the current exception occurred while doing two-stage | |
313 | * address translation for the VS-stage page table walk. | |
314 | */ | |
315 | bool two_stage_indirect_lookup; | |
ec352d0c | 316 | |
8c59f5c1 MC |
317 | target_ulong scounteren; |
318 | target_ulong mcounteren; | |
dc5bd18f | 319 | |
b1675eeb AP |
320 | target_ulong mcountinhibit; |
321 | ||
3780e337 AP |
322 | /* PMU counter state */ |
323 | PMUCTRState pmu_ctrs[RV_MAX_MHPMCOUNTERS]; | |
621f35bb | 324 | |
3b57254d | 325 | /* PMU event selector configured values. First three are unused */ |
621f35bb AP |
326 | target_ulong mhpmevent_val[RV_MAX_MHPMEVENTS]; |
327 | ||
3b57254d | 328 | /* PMU event selector configured values for RV32 */ |
14664483 AP |
329 | target_ulong mhpmeventh_val[RV_MAX_MHPMEVENTS]; |
330 | ||
dc5bd18f MC |
331 | target_ulong sscratch; |
332 | target_ulong mscratch; | |
333 | ||
43888c2f AP |
334 | /* Sstc CSRs */ |
335 | uint64_t stimecmp; | |
336 | ||
3ec0fe18 AP |
337 | uint64_t vstimecmp; |
338 | ||
dc5bd18f MC |
339 | /* physical memory protection */ |
340 | pmp_table_t pmp_state; | |
2582a95c | 341 | target_ulong mseccfg; |
753e3fe2 | 342 | |
95799e36 BM |
343 | /* trigger module */ |
344 | target_ulong trigger_cur; | |
9495c488 FC |
345 | target_ulong tdata1[RV_MAX_TRIGGERS]; |
346 | target_ulong tdata2[RV_MAX_TRIGGERS]; | |
347 | target_ulong tdata3[RV_MAX_TRIGGERS]; | |
348 | struct CPUBreakpoint *cpu_breakpoint[RV_MAX_TRIGGERS]; | |
349 | struct CPUWatchpoint *cpu_watchpoint[RV_MAX_TRIGGERS]; | |
5a4ae64c LZ |
350 | QEMUTimer *itrigger_timer[RV_MAX_TRIGGERS]; |
351 | int64_t last_icount; | |
577f0286 | 352 | bool itrigger_enabled; |
95799e36 | 353 | |
c6957248 | 354 | /* machine specific rdtime callback */ |
e2f01f3c FC |
355 | uint64_t (*rdtime_fn)(void *); |
356 | void *rdtime_fn_arg; | |
c6957248 | 357 | |
69077dd6 AP |
358 | /* machine specific AIA ireg read-modify-write callback */ |
359 | #define AIA_MAKE_IREG(__isel, __priv, __virt, __vgein, __xlen) \ | |
360 | ((((__xlen) & 0xff) << 24) | \ | |
361 | (((__vgein) & 0x3f) << 20) | \ | |
362 | (((__virt) & 0x1) << 18) | \ | |
363 | (((__priv) & 0x3) << 16) | \ | |
364 | (__isel & 0xffff)) | |
365 | #define AIA_IREG_ISEL(__ireg) ((__ireg) & 0xffff) | |
366 | #define AIA_IREG_PRIV(__ireg) (((__ireg) >> 16) & 0x3) | |
367 | #define AIA_IREG_VIRT(__ireg) (((__ireg) >> 18) & 0x1) | |
368 | #define AIA_IREG_VGEIN(__ireg) (((__ireg) >> 20) & 0x3f) | |
369 | #define AIA_IREG_XLEN(__ireg) (((__ireg) >> 24) & 0xff) | |
370 | int (*aia_ireg_rmw_fn[4])(void *arg, target_ulong reg, | |
371 | target_ulong *val, target_ulong new_val, target_ulong write_mask); | |
372 | void *aia_ireg_rmw_fn_arg[4]; | |
373 | ||
753e3fe2 JW |
374 | /* True if in debugger mode. */ |
375 | bool debugger; | |
4bbe8033 AB |
376 | |
377 | /* | |
378 | * CSRs for PointerMasking extension | |
379 | */ | |
380 | target_ulong mmte; | |
381 | target_ulong mpmmask; | |
382 | target_ulong mpmbase; | |
383 | target_ulong spmmask; | |
384 | target_ulong spmbase; | |
385 | target_ulong upmmask; | |
386 | target_ulong upmbase; | |
29a9ec9b | 387 | |
42fe7499 | 388 | /* CSRs for execution environment configuration */ |
29a9ec9b | 389 | uint64_t menvcfg; |
3bee0e40 MC |
390 | uint64_t mstateen[SMSTATEEN_MAX_COUNT]; |
391 | uint64_t hstateen[SMSTATEEN_MAX_COUNT]; | |
392 | uint64_t sstateen[SMSTATEEN_MAX_COUNT]; | |
29a9ec9b AP |
393 | target_ulong senvcfg; |
394 | uint64_t henvcfg; | |
dc5bd18f | 395 | #endif |
40bfa5f6 LZ |
396 | target_ulong cur_pmmask; |
397 | target_ulong cur_pmbase; | |
dc5bd18f | 398 | |
dc5bd18f | 399 | /* Fields from here on are preserved across CPU reset. */ |
43888c2f | 400 | QEMUTimer *stimer; /* Internal timer for S-mode interrupt */ |
3ec0fe18 AP |
401 | QEMUTimer *vstimer; /* Internal timer for VS-mode interrupt */ |
402 | bool vstime_irq; | |
ad40be27 YJ |
403 | |
404 | hwaddr kernel_addr; | |
405 | hwaddr fdt_addr; | |
27abe66f | 406 | |
9638cbde | 407 | #ifdef CONFIG_KVM |
27abe66f YJ |
408 | /* kvm timer */ |
409 | bool kvm_timer_dirty; | |
410 | uint64_t kvm_timer_time; | |
411 | uint64_t kvm_timer_compare; | |
412 | uint64_t kvm_timer_state; | |
413 | uint64_t kvm_timer_frequency; | |
9638cbde | 414 | #endif /* CONFIG_KVM */ |
dc5bd18f MC |
415 | }; |
416 | ||
3b57254d | 417 | /* |
dc5bd18f MC |
418 | * RISCVCPU: |
419 | * @env: #CPURISCVState | |
420 | * | |
421 | * A RISCV CPU. | |
422 | */ | |
b36e239e | 423 | struct ArchCPU { |
dc5bd18f | 424 | CPUState parent_obj; |
3b3d7df5 | 425 | |
dc5bd18f | 426 | CPURISCVState env; |
c4e95030 | 427 | |
b93777e1 | 428 | char *dyn_csr_xml; |
719d3561 | 429 | char *dyn_vreg_xml; |
b93777e1 | 430 | |
c4e95030 | 431 | /* Configuration Settings */ |
466292bd | 432 | RISCVCPUConfig cfg; |
14664483 AP |
433 | |
434 | QEMUTimer *pmu_timer; | |
435 | /* A bitmask of Available programmable counters */ | |
436 | uint32_t pmu_avail_ctrs; | |
437 | /* Mapping of events to counters */ | |
438 | GHashTable *pmu_event_ctr_map; | |
db1015e9 | 439 | }; |
dc5bd18f | 440 | |
9348028e PMD |
441 | /** |
442 | * RISCVCPUClass: | |
443 | * @parent_realize: The parent class' realize handler. | |
444 | * @parent_phases: The parent class' reset phase handlers. | |
445 | * | |
446 | * A RISCV CPU model. | |
447 | */ | |
448 | struct RISCVCPUClass { | |
449 | CPUClass parent_class; | |
450 | ||
451 | DeviceRealize parent_realize; | |
452 | ResettablePhases parent_phases; | |
453 | }; | |
454 | ||
dc5bd18f MC |
455 | static inline int riscv_has_ext(CPURISCVState *env, target_ulong ext) |
456 | { | |
e91a7227 | 457 | return (env->misa_ext & ext) != 0; |
dc5bd18f MC |
458 | } |
459 | ||
dc5bd18f | 460 | #include "cpu_user.h" |
dc5bd18f MC |
461 | |
462 | extern const char * const riscv_int_regnames[]; | |
2b547084 | 463 | extern const char * const riscv_int_regnamesh[]; |
dc5bd18f | 464 | extern const char * const riscv_fpr_regnames[]; |
dc5bd18f | 465 | |
c51a3f5d | 466 | const char *riscv_cpu_get_trap_name(target_ulong cause, bool async); |
dc5bd18f | 467 | void riscv_cpu_do_interrupt(CPUState *cpu); |
43a96588 | 468 | int riscv_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs, |
1af0006a | 469 | int cpuid, DumpState *s); |
43a96588 | 470 | int riscv_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs, |
1af0006a | 471 | int cpuid, DumpState *s); |
a010bdbe | 472 | int riscv_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); |
dc5bd18f | 473 | int riscv_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); |
43dc93af AP |
474 | int riscv_cpu_hviprio_index2irq(int index, int *out_irq, int *out_rdzero); |
475 | uint8_t riscv_cpu_default_priority(int irq); | |
8f42415f | 476 | uint64_t riscv_cpu_all_pending(CPURISCVState *env); |
43dc93af AP |
477 | int riscv_cpu_mirq_pending(CPURISCVState *env); |
478 | int riscv_cpu_sirq_pending(CPURISCVState *env); | |
479 | int riscv_cpu_vsirq_pending(CPURISCVState *env); | |
b345b480 | 480 | bool riscv_cpu_fp_enabled(CPURISCVState *env); |
cd032fe7 AP |
481 | target_ulong riscv_cpu_get_geilen(CPURISCVState *env); |
482 | void riscv_cpu_set_geilen(CPURISCVState *env, target_ulong geilen); | |
61b4b69d | 483 | bool riscv_cpu_vector_enabled(CPURISCVState *env); |
ef6bb7b6 | 484 | void riscv_cpu_set_virt_enabled(CPURISCVState *env, bool enable); |
dc5bd18f | 485 | int riscv_cpu_mmu_index(CPURISCVState *env, bool ifetch); |
8905770b | 486 | G_NORETURN void riscv_cpu_do_unaligned_access(CPUState *cs, vaddr addr, |
246f8796 WL |
487 | MMUAccessType access_type, |
488 | int mmu_idx, uintptr_t retaddr); | |
8a4ca3c1 RH |
489 | bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size, |
490 | MMUAccessType access_type, int mmu_idx, | |
491 | bool probe, uintptr_t retaddr); | |
dc5bd18f | 492 | char *riscv_isa_string(RISCVCPU *cpu); |
0442428a | 493 | void riscv_cpu_list(void); |
dc5bd18f | 494 | |
dc5bd18f MC |
495 | #define cpu_list riscv_cpu_list |
496 | #define cpu_mmu_index riscv_cpu_mmu_index | |
497 | ||
85ba724f | 498 | #ifndef CONFIG_USER_ONLY |
d90ebc47 PMD |
499 | void riscv_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, |
500 | vaddr addr, unsigned size, | |
501 | MMUAccessType access_type, | |
502 | int mmu_idx, MemTxAttrs attrs, | |
503 | MemTxResult response, uintptr_t retaddr); | |
6d2d454a | 504 | hwaddr riscv_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); |
17b3c353 | 505 | bool riscv_cpu_exec_interrupt(CPUState *cs, int interrupt_request); |
66e594f2 | 506 | void riscv_cpu_swap_hypervisor_regs(CPURISCVState *env); |
d028ac75 | 507 | int riscv_cpu_claim_interrupts(RISCVCPU *cpu, uint64_t interrupts); |
bbb9fc25 WL |
508 | uint64_t riscv_cpu_update_mip(CPURISCVState *env, uint64_t mask, |
509 | uint64_t value); | |
1ebad505 | 510 | void riscv_cpu_interrupt(CPURISCVState *env); |
85ba724f | 511 | #define BOOL_TO_MASK(x) (-!!(x)) /* helper for riscv_cpu_update_mip value */ |
e2f01f3c FC |
512 | void riscv_cpu_set_rdtime_fn(CPURISCVState *env, uint64_t (*fn)(void *), |
513 | void *arg); | |
69077dd6 AP |
514 | void riscv_cpu_set_aia_ireg_rmw_fn(CPURISCVState *env, uint32_t priv, |
515 | int (*rmw_fn)(void *arg, | |
516 | target_ulong reg, | |
517 | target_ulong *val, | |
518 | target_ulong new_val, | |
519 | target_ulong write_mask), | |
520 | void *rmw_fn_arg); | |
ce3af0bb WL |
521 | |
522 | RISCVException smstateen_acc_ok(CPURISCVState *env, int index, uint64_t bit); | |
85ba724f | 523 | #endif |
fb738839 | 524 | void riscv_cpu_set_mode(CPURISCVState *env, target_ulong newpriv); |
dc5bd18f MC |
525 | |
526 | void riscv_translate_init(void); | |
8905770b MAL |
527 | G_NORETURN void riscv_raise_exception(CPURISCVState *env, |
528 | uint32_t exception, uintptr_t pc); | |
dc5bd18f | 529 | |
fb738839 MC |
530 | target_ulong riscv_cpu_get_fflags(CPURISCVState *env); |
531 | void riscv_cpu_set_fflags(CPURISCVState *env, target_ulong); | |
dc5bd18f | 532 | |
2b7168fc LZ |
533 | #include "exec/cpu-all.h" |
534 | ||
61d56494 | 535 | FIELD(TB_FLAGS, MEM_IDX, 0, 3) |
ebd47648 LZ |
536 | FIELD(TB_FLAGS, FS, 3, 2) |
537 | /* Vector flags */ | |
538 | FIELD(TB_FLAGS, VS, 5, 2) | |
539 | FIELD(TB_FLAGS, LMUL, 7, 3) | |
540 | FIELD(TB_FLAGS, SEW, 10, 3) | |
541 | FIELD(TB_FLAGS, VL_EQ_VLMAX, 13, 1) | |
542 | FIELD(TB_FLAGS, VILL, 14, 1) | |
0f58cbbe | 543 | FIELD(TB_FLAGS, VSTART_EQ_ZERO, 15, 1) |
92371bd9 | 544 | /* The combination of MXL/SXL/UXL that applies to the current cpu mode. */ |
25f3ddff | 545 | FIELD(TB_FLAGS, XL, 16, 2) |
0774a7a1 | 546 | /* If PointerMasking should be applied */ |
25f3ddff RH |
547 | FIELD(TB_FLAGS, PM_MASK_ENABLED, 18, 1) |
548 | FIELD(TB_FLAGS, PM_BASE_ENABLED, 19, 1) | |
549 | FIELD(TB_FLAGS, VTA, 20, 1) | |
550 | FIELD(TB_FLAGS, VMA, 21, 1) | |
2c9d7471 | 551 | /* Native debug itrigger */ |
25f3ddff | 552 | FIELD(TB_FLAGS, ITRIGGER, 22, 1) |
f1966390 | 553 | /* Virtual mode enabled */ |
25f3ddff | 554 | FIELD(TB_FLAGS, VIRT_ENABLED, 23, 1) |
0f58cbbe | 555 | FIELD(TB_FLAGS, PRIV, 24, 2) |
3a610f54 | 556 | FIELD(TB_FLAGS, AXL, 26, 2) |
2b7168fc | 557 | |
db23e5d9 RH |
558 | #ifdef TARGET_RISCV32 |
559 | #define riscv_cpu_mxl(env) ((void)(env), MXL_RV32) | |
560 | #else | |
561 | static inline RISCVMXL riscv_cpu_mxl(CPURISCVState *env) | |
562 | { | |
563 | return env->misa_mxl; | |
564 | } | |
565 | #endif | |
2b602398 | 566 | #define riscv_cpu_mxl_bits(env) (1UL << (4 + riscv_cpu_mxl(env))) |
51ae0cab | 567 | |
d4ea7117 DHB |
568 | static inline const RISCVCPUConfig *riscv_cpu_cfg(CPURISCVState *env) |
569 | { | |
570 | return &env_archcpu(env)->cfg; | |
571 | } | |
572 | ||
3a610f54 WL |
573 | #if !defined(CONFIG_USER_ONLY) |
574 | static inline int cpu_address_mode(CPURISCVState *env) | |
575 | { | |
576 | int mode = env->priv; | |
577 | ||
578 | if (mode == PRV_M && get_field(env->mstatus, MSTATUS_MPRV)) { | |
579 | mode = get_field(env->mstatus, MSTATUS_MPP); | |
580 | } | |
581 | return mode; | |
582 | } | |
583 | ||
584 | static inline RISCVMXL cpu_get_xl(CPURISCVState *env, target_ulong mode) | |
440544e1 LZ |
585 | { |
586 | RISCVMXL xl = env->misa_mxl; | |
440544e1 LZ |
587 | /* |
588 | * When emulating a 32-bit-only cpu, use RV32. | |
589 | * When emulating a 64-bit cpu, and MXL has been reduced to RV32, | |
590 | * MSTATUSH doesn't have UXL/SXL, therefore XLEN cannot be widened | |
591 | * back to RV64 for lower privs. | |
592 | */ | |
593 | if (xl != MXL_RV32) { | |
3a610f54 | 594 | switch (mode) { |
440544e1 LZ |
595 | case PRV_M: |
596 | break; | |
597 | case PRV_U: | |
598 | xl = get_field(env->mstatus, MSTATUS64_UXL); | |
599 | break; | |
44b8f74b | 600 | default: /* PRV_S */ |
440544e1 LZ |
601 | xl = get_field(env->mstatus, MSTATUS64_SXL); |
602 | break; | |
603 | } | |
604 | } | |
440544e1 LZ |
605 | return xl; |
606 | } | |
607 | #endif | |
608 | ||
3a610f54 WL |
609 | #if defined(TARGET_RISCV32) |
610 | #define cpu_recompute_xl(env) ((void)(env), MXL_RV32) | |
611 | #else | |
612 | static inline RISCVMXL cpu_recompute_xl(CPURISCVState *env) | |
613 | { | |
614 | #if !defined(CONFIG_USER_ONLY) | |
615 | return cpu_get_xl(env, env->priv); | |
616 | #else | |
617 | return env->misa_mxl; | |
618 | #endif | |
619 | } | |
620 | #endif | |
621 | ||
622 | #if defined(TARGET_RISCV32) | |
623 | #define cpu_address_xl(env) ((void)(env), MXL_RV32) | |
624 | #else | |
625 | static inline RISCVMXL cpu_address_xl(CPURISCVState *env) | |
626 | { | |
627 | #ifdef CONFIG_USER_ONLY | |
628 | return env->xl; | |
629 | #else | |
630 | int mode = cpu_address_mode(env); | |
631 | ||
632 | return cpu_get_xl(env, mode); | |
633 | #endif | |
634 | } | |
635 | #endif | |
636 | ||
31961cfe LZ |
637 | static inline int riscv_cpu_xlen(CPURISCVState *env) |
638 | { | |
639 | return 16 << env->xl; | |
640 | } | |
641 | ||
05e6ca5e GR |
642 | #ifdef TARGET_RISCV32 |
643 | #define riscv_cpu_sxl(env) ((void)(env), MXL_RV32) | |
644 | #else | |
645 | static inline RISCVMXL riscv_cpu_sxl(CPURISCVState *env) | |
646 | { | |
647 | #ifdef CONFIG_USER_ONLY | |
648 | return env->misa_mxl; | |
649 | #else | |
650 | return get_field(env->mstatus, MSTATUS64_SXL); | |
651 | #endif | |
652 | } | |
653 | #endif | |
654 | ||
2b7168fc | 655 | /* |
a689a82b FC |
656 | * Encode LMUL to lmul as follows: |
657 | * LMUL vlmul lmul | |
658 | * 1 000 0 | |
659 | * 2 001 1 | |
660 | * 4 010 2 | |
661 | * 8 011 3 | |
662 | * - 100 - | |
663 | * 1/8 101 -3 | |
664 | * 1/4 110 -2 | |
665 | * 1/2 111 -1 | |
666 | * | |
667 | * then, we can calculate VLMAX = vlen >> (vsew + 3 - lmul) | |
668 | * e.g. vlen = 256 bits, SEW = 16, LMUL = 1/8 | |
669 | * => VLMAX = vlen >> (1 + 3 - (-3)) | |
670 | * = 256 >> 7 | |
671 | * = 2 | |
2b7168fc LZ |
672 | */ |
673 | static inline uint32_t vext_get_vlmax(RISCVCPU *cpu, target_ulong vtype) | |
674 | { | |
a689a82b FC |
675 | uint8_t sew = FIELD_EX64(vtype, VTYPE, VSEW); |
676 | int8_t lmul = sextract32(FIELD_EX64(vtype, VTYPE, VLMUL), 0, 3); | |
2b7168fc LZ |
677 | return cpu->cfg.vlen >> (sew + 3 - lmul); |
678 | } | |
679 | ||
bb5de525 AJ |
680 | void cpu_get_tb_cpu_state(CPURISCVState *env, vaddr *pc, |
681 | uint64_t *cs_base, uint32_t *pflags); | |
dc5bd18f | 682 | |
40bfa5f6 LZ |
683 | void riscv_cpu_update_mask(CPURISCVState *env); |
684 | ||
533c91e8 AF |
685 | RISCVException riscv_csrrw(CPURISCVState *env, int csrno, |
686 | target_ulong *ret_value, | |
687 | target_ulong new_value, target_ulong write_mask); | |
688 | RISCVException riscv_csrrw_debug(CPURISCVState *env, int csrno, | |
689 | target_ulong *ret_value, | |
690 | target_ulong new_value, | |
691 | target_ulong write_mask); | |
c7b95171 | 692 | |
fb738839 MC |
693 | static inline void riscv_csr_write(CPURISCVState *env, int csrno, |
694 | target_ulong val) | |
c7b95171 MC |
695 | { |
696 | riscv_csrrw(env, csrno, NULL, val, MAKE_64BIT_MASK(0, TARGET_LONG_BITS)); | |
697 | } | |
698 | ||
fb738839 | 699 | static inline target_ulong riscv_csr_read(CPURISCVState *env, int csrno) |
c7b95171 MC |
700 | { |
701 | target_ulong val = 0; | |
702 | riscv_csrrw(env, csrno, &val, 0, 0); | |
703 | return val; | |
704 | } | |
705 | ||
0e62f92e AF |
706 | typedef RISCVException (*riscv_csr_predicate_fn)(CPURISCVState *env, |
707 | int csrno); | |
605def6e AF |
708 | typedef RISCVException (*riscv_csr_read_fn)(CPURISCVState *env, int csrno, |
709 | target_ulong *ret_value); | |
710 | typedef RISCVException (*riscv_csr_write_fn)(CPURISCVState *env, int csrno, | |
711 | target_ulong new_value); | |
712 | typedef RISCVException (*riscv_csr_op_fn)(CPURISCVState *env, int csrno, | |
713 | target_ulong *ret_value, | |
714 | target_ulong new_value, | |
715 | target_ulong write_mask); | |
c7b95171 | 716 | |
961738ff FP |
717 | RISCVException riscv_csrrw_i128(CPURISCVState *env, int csrno, |
718 | Int128 *ret_value, | |
719 | Int128 new_value, Int128 write_mask); | |
720 | ||
457c360f FP |
721 | typedef RISCVException (*riscv_csr_read128_fn)(CPURISCVState *env, int csrno, |
722 | Int128 *ret_value); | |
723 | typedef RISCVException (*riscv_csr_write128_fn)(CPURISCVState *env, int csrno, | |
724 | Int128 new_value); | |
725 | ||
c7b95171 | 726 | typedef struct { |
8ceac5dc | 727 | const char *name; |
a88365c1 | 728 | riscv_csr_predicate_fn predicate; |
c7b95171 MC |
729 | riscv_csr_read_fn read; |
730 | riscv_csr_write_fn write; | |
731 | riscv_csr_op_fn op; | |
457c360f FP |
732 | riscv_csr_read128_fn read128; |
733 | riscv_csr_write128_fn write128; | |
a4b2fa43 AP |
734 | /* The default priv spec version should be PRIV_VERSION_1_10_0 (i.e 0) */ |
735 | uint32_t min_priv_ver; | |
c7b95171 MC |
736 | } riscv_csr_operations; |
737 | ||
56118ee8 BM |
738 | /* CSR function table constants */ |
739 | enum { | |
740 | CSR_TABLE_SIZE = 0x1000 | |
741 | }; | |
742 | ||
3b57254d | 743 | /* |
14664483 AP |
744 | * The event id are encoded based on the encoding specified in the |
745 | * SBI specification v0.3 | |
746 | */ | |
747 | ||
748 | enum riscv_pmu_event_idx { | |
749 | RISCV_PMU_EVENT_HW_CPU_CYCLES = 0x01, | |
750 | RISCV_PMU_EVENT_HW_INSTRUCTIONS = 0x02, | |
751 | RISCV_PMU_EVENT_CACHE_DTLB_READ_MISS = 0x10019, | |
752 | RISCV_PMU_EVENT_CACHE_DTLB_WRITE_MISS = 0x1001B, | |
753 | RISCV_PMU_EVENT_CACHE_ITLB_PREFETCH_MISS = 0x10021, | |
754 | }; | |
755 | ||
36c1118d DHB |
756 | /* used by tcg/tcg-cpu.c*/ |
757 | void isa_ext_update_enabled(RISCVCPU *cpu, uint32_t ext_offset, bool en); | |
36c1118d | 758 | bool isa_ext_is_enabled(RISCVCPU *cpu, uint32_t ext_offset); |
f51d03b0 | 759 | void riscv_cpu_set_misa(CPURISCVState *env, RISCVMXL mxl, uint32_t ext); |
36c1118d | 760 | |
32fa1776 DHB |
761 | typedef struct RISCVCPUMultiExtConfig { |
762 | const char *name; | |
763 | uint32_t offset; | |
764 | bool enabled; | |
765 | } RISCVCPUMultiExtConfig; | |
766 | ||
767 | extern const RISCVCPUMultiExtConfig riscv_cpu_extensions[]; | |
768 | extern const RISCVCPUMultiExtConfig riscv_cpu_vendor_exts[]; | |
769 | extern const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[]; | |
8043effd | 770 | extern const RISCVCPUMultiExtConfig riscv_cpu_deprecated_exts[]; |
32fa1776 DHB |
771 | extern Property riscv_cpu_options[]; |
772 | ||
7935e2c4 DHB |
773 | typedef struct isa_ext_data { |
774 | const char *name; | |
775 | int min_version; | |
776 | int ext_enable_offset; | |
777 | } RISCVIsaExtData; | |
778 | extern const RISCVIsaExtData isa_edata_arr[]; | |
b933720b | 779 | char *riscv_cpu_get_name(RISCVCPU *cpu); |
7935e2c4 | 780 | |
a13a6082 | 781 | void riscv_cpu_finalize_features(RISCVCPU *cpu, Error **errp); |
7d0c302c | 782 | void riscv_add_satp_mode_properties(Object *obj); |
ef58fad0 | 783 | bool riscv_cpu_accelerator_compatible(RISCVCPU *cpu); |
32fa1776 | 784 | |
56118ee8 | 785 | /* CSR function table */ |
6f03770d | 786 | extern riscv_csr_operations csr_ops[CSR_TABLE_SIZE]; |
56118ee8 | 787 | |
6f23aaeb AG |
788 | extern const bool valid_vm_1_10_32[], valid_vm_1_10_64[]; |
789 | ||
c7b95171 MC |
790 | void riscv_get_csr_ops(int csrno, riscv_csr_operations *ops); |
791 | void riscv_set_csr_ops(int csrno, riscv_csr_operations *ops); | |
dc5bd18f | 792 | |
5371f5cd JW |
793 | void riscv_cpu_register_gdb_regs_for_features(CPUState *cs); |
794 | ||
6f23aaeb AG |
795 | uint8_t satp_mode_max_from_map(uint32_t map); |
796 | const char *satp_mode_str(uint8_t satp_mode, bool is_32_bit); | |
797 | ||
dc5bd18f | 798 | #endif /* RISCV_CPU_H */ |