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20#ifndef ALPHA_CPU_H
21#define ALPHA_CPU_H
22
23#include "cpu-qom.h"
24#include "exec/cpu-defs.h"
25
26
27#define TCG_GUEST_DEFAULT_MO (0)
28
29#define ICACHE_LINE_SIZE 32
30#define DCACHE_LINE_SIZE 32
31
32
33enum {
34 ALPHA_EV3 = 1,
35 ALPHA_EV4 = 2,
36 ALPHA_SIM = 3,
37 ALPHA_LCA = 4,
38 ALPHA_EV5 = 5,
39 ALPHA_EV45 = 6,
40 ALPHA_EV56 = 7,
41};
42
43
44enum {
45 ALPHA_EV4_2 = 0,
46 ALPHA_EV4_3 = 1,
47};
48
49
50enum {
51 ALPHA_LCA_1 = 1,
52 ALPHA_LCA_2 = 2,
53 ALPHA_LCA_3 = 3,
54 ALPHA_LCA_4 = 4,
55 ALPHA_LCA_5 = 5,
56 ALPHA_LCA_6 = 6,
57};
58
59
60enum {
61 ALPHA_EV5_1 = 1,
62 ALPHA_EV5_2 = 2,
63 ALPHA_EV5_3 = 3,
64 ALPHA_EV5_4 = 4,
65 ALPHA_EV5_5 = 5,
66};
67
68
69enum {
70 ALPHA_EV45_1 = 1,
71 ALPHA_EV45_2 = 2,
72 ALPHA_EV45_3 = 3,
73};
74
75
76enum {
77 ALPHA_EV56_1 = 1,
78 ALPHA_EV56_2 = 2,
79};
80
81enum {
82 IMPLVER_2106x = 0,
83 IMPLVER_21164 = 1,
84 IMPLVER_21264 = 2,
85 IMPLVER_21364 = 3,
86};
87
88enum {
89 AMASK_BWX = 0x00000001,
90 AMASK_FIX = 0x00000002,
91 AMASK_CIX = 0x00000004,
92 AMASK_MVI = 0x00000100,
93 AMASK_TRAP = 0x00000200,
94 AMASK_PREFETCH = 0x00001000,
95};
96
97enum {
98 VAX_ROUND_NORMAL = 0,
99 VAX_ROUND_CHOPPED,
100};
101
102enum {
103 IEEE_ROUND_NORMAL = 0,
104 IEEE_ROUND_DYNAMIC,
105 IEEE_ROUND_PLUS,
106 IEEE_ROUND_MINUS,
107 IEEE_ROUND_CHOPPED,
108};
109
110
111
112enum {
113 FP_TRAP_I = 0x0,
114 FP_TRAP_U = 0x1,
115 FP_TRAP_S = 0x4,
116 FP_TRAP_SU = 0x5,
117 FP_TRAP_SUI = 0x7,
118};
119
120
121enum {
122 FP_ROUND_CHOPPED = 0x0,
123 FP_ROUND_MINUS = 0x1,
124 FP_ROUND_NORMAL = 0x2,
125 FP_ROUND_DYNAMIC = 0x3,
126};
127
128
129#define FPCR_SUM (1U << (63 - 32))
130#define FPCR_INED (1U << (62 - 32))
131#define FPCR_UNFD (1U << (61 - 32))
132#define FPCR_UNDZ (1U << (60 - 32))
133#define FPCR_DYN_SHIFT (58 - 32)
134#define FPCR_DYN_CHOPPED (0U << FPCR_DYN_SHIFT)
135#define FPCR_DYN_MINUS (1U << FPCR_DYN_SHIFT)
136#define FPCR_DYN_NORMAL (2U << FPCR_DYN_SHIFT)
137#define FPCR_DYN_PLUS (3U << FPCR_DYN_SHIFT)
138#define FPCR_DYN_MASK (3U << FPCR_DYN_SHIFT)
139#define FPCR_IOV (1U << (57 - 32))
140#define FPCR_INE (1U << (56 - 32))
141#define FPCR_UNF (1U << (55 - 32))
142#define FPCR_OVF (1U << (54 - 32))
143#define FPCR_DZE (1U << (53 - 32))
144#define FPCR_INV (1U << (52 - 32))
145#define FPCR_OVFD (1U << (51 - 32))
146#define FPCR_DZED (1U << (50 - 32))
147#define FPCR_INVD (1U << (49 - 32))
148#define FPCR_DNZ (1U << (48 - 32))
149#define FPCR_DNOD (1U << (47 - 32))
150#define FPCR_STATUS_MASK (FPCR_IOV | FPCR_INE | FPCR_UNF \
151 | FPCR_OVF | FPCR_DZE | FPCR_INV)
152
153
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155
156
157#define SWCR_TRAP_ENABLE_INV (1U << 1)
158#define SWCR_TRAP_ENABLE_DZE (1U << 2)
159#define SWCR_TRAP_ENABLE_OVF (1U << 3)
160#define SWCR_TRAP_ENABLE_UNF (1U << 4)
161#define SWCR_TRAP_ENABLE_INE (1U << 5)
162#define SWCR_TRAP_ENABLE_DNO (1U << 6)
163#define SWCR_TRAP_ENABLE_MASK ((1U << 7) - (1U << 1))
164
165#define SWCR_MAP_DMZ (1U << 12)
166#define SWCR_MAP_UMZ (1U << 13)
167#define SWCR_MAP_MASK (SWCR_MAP_DMZ | SWCR_MAP_UMZ)
168
169#define SWCR_STATUS_INV (1U << 17)
170#define SWCR_STATUS_DZE (1U << 18)
171#define SWCR_STATUS_OVF (1U << 19)
172#define SWCR_STATUS_UNF (1U << 20)
173#define SWCR_STATUS_INE (1U << 21)
174#define SWCR_STATUS_DNO (1U << 22)
175#define SWCR_STATUS_MASK ((1U << 23) - (1U << 17))
176
177#define SWCR_STATUS_TO_EXCSUM_SHIFT 16
178
179#define SWCR_MASK (SWCR_TRAP_ENABLE_MASK | SWCR_MAP_MASK | SWCR_STATUS_MASK)
180
181
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194
195
196#define MMU_KERNEL_IDX 0
197#define MMU_USER_IDX 1
198#define MMU_PHYS_IDX 2
199
200typedef struct CPUAlphaState CPUAlphaState;
201
202struct CPUAlphaState {
203 uint64_t ir[31];
204 float64 fir[31];
205 uint64_t pc;
206 uint64_t unique;
207 uint64_t lock_addr;
208 uint64_t lock_value;
209
210
211 uint32_t fpcr;
212#ifdef CONFIG_USER_ONLY
213 uint32_t swcr;
214#endif
215 uint32_t fpcr_exc_enable;
216 float_status fp_status;
217 uint8_t fpcr_dyn_round;
218 uint8_t fpcr_flush_to_zero;
219
220
221
222 uint32_t flags;
223
224
225 uint32_t pcc_ofs;
226
227
228
229
230 uint64_t trap_arg0;
231 uint64_t trap_arg1;
232 uint64_t trap_arg2;
233
234#if !defined(CONFIG_USER_ONLY)
235
236 uint64_t exc_addr;
237 uint64_t palbr;
238 uint64_t ptbr;
239 uint64_t vptptr;
240 uint64_t sysval;
241 uint64_t usp;
242 uint64_t shadow[8];
243 uint64_t scratch[24];
244#endif
245
246
247 uint64_t alarm_expire;
248
249 int error_code;
250
251 uint32_t features;
252 uint32_t amask;
253 int implver;
254};
255
256
257
258
259
260
261
262struct AlphaCPU {
263
264 CPUState parent_obj;
265
266
267 CPUNegativeOffsetState neg;
268 CPUAlphaState env;
269
270
271 QEMUTimer *alarm_timer;
272};
273
274
275#ifndef CONFIG_USER_ONLY
276extern const VMStateDescription vmstate_alpha_cpu;
277#endif
278
279void alpha_cpu_do_interrupt(CPUState *cpu);
280bool alpha_cpu_exec_interrupt(CPUState *cpu, int int_req);
281void alpha_cpu_dump_state(CPUState *cs, FILE *f, int flags);
282hwaddr alpha_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
283int alpha_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
284int alpha_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
285void alpha_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
286 MMUAccessType access_type,
287 int mmu_idx, uintptr_t retaddr);
288
289#define cpu_list alpha_cpu_list
290#define cpu_signal_handler cpu_alpha_signal_handler
291
292typedef CPUAlphaState CPUArchState;
293typedef AlphaCPU ArchCPU;
294
295#include "exec/cpu-all.h"
296
297enum {
298 FEATURE_ASN = 0x00000001,
299 FEATURE_SPS = 0x00000002,
300 FEATURE_VIRBND = 0x00000004,
301 FEATURE_TBCHK = 0x00000008,
302};
303
304enum {
305 EXCP_RESET,
306 EXCP_MCHK,
307 EXCP_SMP_INTERRUPT,
308 EXCP_CLK_INTERRUPT,
309 EXCP_DEV_INTERRUPT,
310 EXCP_MMFAULT,
311 EXCP_UNALIGN,
312 EXCP_OPCDEC,
313 EXCP_ARITH,
314 EXCP_FEN,
315 EXCP_CALL_PAL,
316};
317
318
319#define CPU_INTERRUPT_TIMER CPU_INTERRUPT_TGT_EXT_0
320#define CPU_INTERRUPT_SMP CPU_INTERRUPT_TGT_EXT_1
321#define CPU_INTERRUPT_MCHK CPU_INTERRUPT_TGT_EXT_2
322
323
324enum {
325 PTE_VALID = 0x0001,
326 PTE_FOR = 0x0002,
327 PTE_FOW = 0x0004,
328 PTE_FOE = 0x0008,
329 PTE_ASM = 0x0010,
330 PTE_KRE = 0x0100,
331 PTE_URE = 0x0200,
332 PTE_KWE = 0x1000,
333 PTE_UWE = 0x2000
334};
335
336
337enum {
338 INT_K_IP,
339 INT_K_CLK,
340 INT_K_MCHK,
341 INT_K_DEV,
342 INT_K_PERF,
343};
344
345
346enum {
347 MM_K_TNV,
348 MM_K_ACV,
349 MM_K_FOR,
350 MM_K_FOE,
351 MM_K_FOW
352};
353
354
355enum {
356 EXC_M_SWC = 1,
357 EXC_M_INV = 2,
358 EXC_M_DZE = 4,
359 EXC_M_FOV = 8,
360 EXC_M_UNF = 16,
361 EXC_M_INE = 32,
362 EXC_M_IOV = 64
363};
364
365
366
367#define PS_INT_MASK 7u
368
369
370
371#define PS_USER_MODE 8u
372
373
374
375
376
377#define ENV_FLAG_PAL_SHIFT 0
378#define ENV_FLAG_PS_SHIFT 8
379#define ENV_FLAG_RX_SHIFT 16
380#define ENV_FLAG_FEN_SHIFT 24
381
382#define ENV_FLAG_PAL_MODE (1u << ENV_FLAG_PAL_SHIFT)
383#define ENV_FLAG_PS_USER (PS_USER_MODE << ENV_FLAG_PS_SHIFT)
384#define ENV_FLAG_RX_FLAG (1u << ENV_FLAG_RX_SHIFT)
385#define ENV_FLAG_FEN (1u << ENV_FLAG_FEN_SHIFT)
386
387#define ENV_FLAG_TB_MASK \
388 (ENV_FLAG_PAL_MODE | ENV_FLAG_PS_USER | ENV_FLAG_FEN)
389
390static inline int cpu_mmu_index(CPUAlphaState *env, bool ifetch)
391{
392 int ret = env->flags & ENV_FLAG_PS_USER ? MMU_USER_IDX : MMU_KERNEL_IDX;
393 if (env->flags & ENV_FLAG_PAL_MODE) {
394 ret = MMU_KERNEL_IDX;
395 }
396 return ret;
397}
398
399enum {
400 IR_V0 = 0,
401 IR_T0 = 1,
402 IR_T1 = 2,
403 IR_T2 = 3,
404 IR_T3 = 4,
405 IR_T4 = 5,
406 IR_T5 = 6,
407 IR_T6 = 7,
408 IR_T7 = 8,
409 IR_S0 = 9,
410 IR_S1 = 10,
411 IR_S2 = 11,
412 IR_S3 = 12,
413 IR_S4 = 13,
414 IR_S5 = 14,
415 IR_S6 = 15,
416 IR_FP = IR_S6,
417 IR_A0 = 16,
418 IR_A1 = 17,
419 IR_A2 = 18,
420 IR_A3 = 19,
421 IR_A4 = 20,
422 IR_A5 = 21,
423 IR_T8 = 22,
424 IR_T9 = 23,
425 IR_T10 = 24,
426 IR_T11 = 25,
427 IR_RA = 26,
428 IR_T12 = 27,
429 IR_PV = IR_T12,
430 IR_AT = 28,
431 IR_GP = 29,
432 IR_SP = 30,
433 IR_ZERO = 31,
434};
435
436void alpha_translate_init(void);
437
438#define ALPHA_CPU_TYPE_SUFFIX "-" TYPE_ALPHA_CPU
439#define ALPHA_CPU_TYPE_NAME(model) model ALPHA_CPU_TYPE_SUFFIX
440#define CPU_RESOLVING_TYPE TYPE_ALPHA_CPU
441
442void alpha_cpu_list(void);
443
444
445
446int cpu_alpha_signal_handler(int host_signum, void *pinfo,
447 void *puc);
448bool alpha_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
449 MMUAccessType access_type, int mmu_idx,
450 bool probe, uintptr_t retaddr);
451void QEMU_NORETURN dynamic_excp(CPUAlphaState *, uintptr_t, int, int);
452void QEMU_NORETURN arith_excp(CPUAlphaState *, uintptr_t, int, uint64_t);
453
454uint64_t cpu_alpha_load_fpcr (CPUAlphaState *env);
455void cpu_alpha_store_fpcr (CPUAlphaState *env, uint64_t val);
456uint64_t cpu_alpha_load_gr(CPUAlphaState *env, unsigned reg);
457void cpu_alpha_store_gr(CPUAlphaState *env, unsigned reg, uint64_t val);
458#ifndef CONFIG_USER_ONLY
459void alpha_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
460 vaddr addr, unsigned size,
461 MMUAccessType access_type,
462 int mmu_idx, MemTxAttrs attrs,
463 MemTxResult response, uintptr_t retaddr);
464#endif
465
466static inline void cpu_get_tb_cpu_state(CPUAlphaState *env, target_ulong *pc,
467 target_ulong *cs_base, uint32_t *pflags)
468{
469 *pc = env->pc;
470 *cs_base = 0;
471 *pflags = env->flags & ENV_FLAG_TB_MASK;
472}
473
474#ifdef CONFIG_USER_ONLY
475
476static inline uint64_t alpha_ieee_swcr_to_fpcr(uint64_t swcr)
477{
478 uint64_t fpcr = 0;
479
480 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
481 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
482 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
483 | SWCR_TRAP_ENABLE_DZE
484 | SWCR_TRAP_ENABLE_OVF)) << 48;
485 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
486 | SWCR_TRAP_ENABLE_INE)) << 57;
487 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
488 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
489
490 return fpcr;
491}
492
493
494static inline uint64_t alpha_ieee_fpcr_to_swcr(uint64_t fpcr)
495{
496 uint64_t swcr = 0;
497
498 swcr |= (fpcr >> 35) & SWCR_STATUS_MASK;
499 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
500 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
501 | SWCR_TRAP_ENABLE_DZE
502 | SWCR_TRAP_ENABLE_OVF);
503 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF | SWCR_TRAP_ENABLE_INE);
504 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
505 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
506
507 return swcr;
508}
509#endif
510
511#endif
512