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1
/*
2
 *  sparc helpers
3
 *
4
 *  Copyright (c) 2003-2005 Fabrice Bellard
5
 *
6
 * This library is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2 of the License, or (at your option) any later version.
10
 *
11
 * This library is distributed in the hope that it will be useful,
12
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
 * Lesser General Public License for more details.
15
 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19
 */
20
#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include <signal.h>
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#include <assert.h>
27

    
28
#include "cpu.h"
29
#include "exec-all.h"
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#include "qemu-common.h"
31

    
32
//#define DEBUG_MMU
33

    
34
typedef struct sparc_def_t sparc_def_t;
35

    
36
struct sparc_def_t {
37
    const unsigned char *name;
38
    target_ulong iu_version;
39
    uint32_t fpu_version;
40
    uint32_t mmu_version;
41
    uint32_t mmu_bm;
42
    uint32_t mmu_ctpr_mask;
43
    uint32_t mmu_cxr_mask;
44
    uint32_t mmu_sfsr_mask;
45
    uint32_t mmu_trcr_mask;
46
};
47

    
48
static const sparc_def_t *cpu_sparc_find_by_name(const unsigned char *name);
49

    
50
/* Sparc MMU emulation */
51

    
52
/* thread support */
53

    
54
spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
55

    
56
void cpu_lock(void)
57
{
58
    spin_lock(&global_cpu_lock);
59
}
60

    
61
void cpu_unlock(void)
62
{
63
    spin_unlock(&global_cpu_lock);
64
}
65

    
66
#if defined(CONFIG_USER_ONLY)
67

    
68
int cpu_sparc_handle_mmu_fault(CPUState *env, target_ulong address, int rw,
69
                               int mmu_idx, int is_softmmu)
70
{
71
    if (rw & 2)
72
        env->exception_index = TT_TFAULT;
73
    else
74
        env->exception_index = TT_DFAULT;
75
    return 1;
76
}
77

    
78
#else
79

    
80
#ifndef TARGET_SPARC64
81
/*
82
 * Sparc V8 Reference MMU (SRMMU)
83
 */
84
static const int access_table[8][8] = {
85
    { 0, 0, 0, 0, 2, 0, 3, 3 },
86
    { 0, 0, 0, 0, 2, 0, 0, 0 },
87
    { 2, 2, 0, 0, 0, 2, 3, 3 },
88
    { 2, 2, 0, 0, 0, 2, 0, 0 },
89
    { 2, 0, 2, 0, 2, 2, 3, 3 },
90
    { 2, 0, 2, 0, 2, 0, 2, 0 },
91
    { 2, 2, 2, 0, 2, 2, 3, 3 },
92
    { 2, 2, 2, 0, 2, 2, 2, 0 }
93
};
94

    
95
static const int perm_table[2][8] = {
96
    {
97
        PAGE_READ,
98
        PAGE_READ | PAGE_WRITE,
99
        PAGE_READ | PAGE_EXEC,
100
        PAGE_READ | PAGE_WRITE | PAGE_EXEC,
101
        PAGE_EXEC,
102
        PAGE_READ | PAGE_WRITE,
103
        PAGE_READ | PAGE_EXEC,
104
        PAGE_READ | PAGE_WRITE | PAGE_EXEC
105
    },
106
    {
107
        PAGE_READ,
108
        PAGE_READ | PAGE_WRITE,
109
        PAGE_READ | PAGE_EXEC,
110
        PAGE_READ | PAGE_WRITE | PAGE_EXEC,
111
        PAGE_EXEC,
112
        PAGE_READ,
113
        0,
114
        0,
115
    }
116
};
117

    
118
static int get_physical_address(CPUState *env, target_phys_addr_t *physical,
119
                                int *prot, int *access_index,
120
                                target_ulong address, int rw, int mmu_idx)
121
{
122
    int access_perms = 0;
123
    target_phys_addr_t pde_ptr;
124
    uint32_t pde;
125
    target_ulong virt_addr;
126
    int error_code = 0, is_dirty, is_user;
127
    unsigned long page_offset;
128

    
129
    is_user = mmu_idx == MMU_USER_IDX;
130
    virt_addr = address & TARGET_PAGE_MASK;
131

    
132
    if ((env->mmuregs[0] & MMU_E) == 0) { /* MMU disabled */
133
        // Boot mode: instruction fetches are taken from PROM
134
        if (rw == 2 && (env->mmuregs[0] & env->mmu_bm)) {
135
            *physical = env->prom_addr | (address & 0x7ffffULL);
136
            *prot = PAGE_READ | PAGE_EXEC;
137
            return 0;
138
        }
139
        *physical = address;
140
        *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
141
        return 0;
142
    }
143

    
144
    *access_index = ((rw & 1) << 2) | (rw & 2) | (is_user? 0 : 1);
145
    *physical = 0xffffffffffff0000ULL;
146

    
147
    /* SPARC reference MMU table walk: Context table->L1->L2->PTE */
148
    /* Context base + context number */
149
    pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2);
150
    pde = ldl_phys(pde_ptr);
151

    
152
    /* Ctx pde */
153
    switch (pde & PTE_ENTRYTYPE_MASK) {
154
    default:
155
    case 0: /* Invalid */
156
        return 1 << 2;
157
    case 2: /* L0 PTE, maybe should not happen? */
158
    case 3: /* Reserved */
159
        return 4 << 2;
160
    case 1: /* L0 PDE */
161
        pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4);
162
        pde = ldl_phys(pde_ptr);
163

    
164
        switch (pde & PTE_ENTRYTYPE_MASK) {
165
        default:
166
        case 0: /* Invalid */
167
            return (1 << 8) | (1 << 2);
168
        case 3: /* Reserved */
169
            return (1 << 8) | (4 << 2);
170
        case 1: /* L1 PDE */
171
            pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4);
172
            pde = ldl_phys(pde_ptr);
173

    
174
            switch (pde & PTE_ENTRYTYPE_MASK) {
175
            default:
176
            case 0: /* Invalid */
177
                return (2 << 8) | (1 << 2);
178
            case 3: /* Reserved */
179
                return (2 << 8) | (4 << 2);
180
            case 1: /* L2 PDE */
181
                pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4);
182
                pde = ldl_phys(pde_ptr);
183

    
184
                switch (pde & PTE_ENTRYTYPE_MASK) {
185
                default:
186
                case 0: /* Invalid */
187
                    return (3 << 8) | (1 << 2);
188
                case 1: /* PDE, should not happen */
189
                case 3: /* Reserved */
190
                    return (3 << 8) | (4 << 2);
191
                case 2: /* L3 PTE */
192
                    virt_addr = address & TARGET_PAGE_MASK;
193
                    page_offset = (address & TARGET_PAGE_MASK) & (TARGET_PAGE_SIZE - 1);
194
                }
195
                break;
196
            case 2: /* L2 PTE */
197
                virt_addr = address & ~0x3ffff;
198
                page_offset = address & 0x3ffff;
199
            }
200
            break;
201
        case 2: /* L1 PTE */
202
            virt_addr = address & ~0xffffff;
203
            page_offset = address & 0xffffff;
204
        }
205
    }
206

    
207
    /* update page modified and dirty bits */
208
    is_dirty = (rw & 1) && !(pde & PG_MODIFIED_MASK);
209
    if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
210
        pde |= PG_ACCESSED_MASK;
211
        if (is_dirty)
212
            pde |= PG_MODIFIED_MASK;
213
        stl_phys_notdirty(pde_ptr, pde);
214
    }
215
    /* check access */
216
    access_perms = (pde & PTE_ACCESS_MASK) >> PTE_ACCESS_SHIFT;
217
    error_code = access_table[*access_index][access_perms];
218
    if (error_code && !((env->mmuregs[0] & MMU_NF) && is_user))
219
        return error_code;
220

    
221
    /* the page can be put in the TLB */
222
    *prot = perm_table[is_user][access_perms];
223
    if (!(pde & PG_MODIFIED_MASK)) {
224
        /* only set write access if already dirty... otherwise wait
225
           for dirty access */
226
        *prot &= ~PAGE_WRITE;
227
    }
228

    
229
    /* Even if large ptes, we map only one 4KB page in the cache to
230
       avoid filling it too fast */
231
    *physical = ((target_phys_addr_t)(pde & PTE_ADDR_MASK) << 4) + page_offset;
232
    return error_code;
233
}
234

    
235
/* Perform address translation */
236
int cpu_sparc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
237
                              int mmu_idx, int is_softmmu)
238
{
239
    target_phys_addr_t paddr;
240
    target_ulong vaddr;
241
    int error_code = 0, prot, ret = 0, access_index;
242

    
243
    error_code = get_physical_address(env, &paddr, &prot, &access_index, address, rw, mmu_idx);
244
    if (error_code == 0) {
245
        vaddr = address & TARGET_PAGE_MASK;
246
        paddr &= TARGET_PAGE_MASK;
247
#ifdef DEBUG_MMU
248
        printf("Translate at " TARGET_FMT_lx " -> " TARGET_FMT_plx ", vaddr "
249
               TARGET_FMT_lx "\n", address, paddr, vaddr);
250
#endif
251
        ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
252
        return ret;
253
    }
254

    
255
    if (env->mmuregs[3]) /* Fault status register */
256
        env->mmuregs[3] = 1; /* overflow (not read before another fault) */
257
    env->mmuregs[3] |= (access_index << 5) | error_code | 2;
258
    env->mmuregs[4] = address; /* Fault address register */
259

    
260
    if ((env->mmuregs[0] & MMU_NF) || env->psret == 0)  {
261
        // No fault mode: if a mapping is available, just override
262
        // permissions. If no mapping is available, redirect accesses to
263
        // neverland. Fake/overridden mappings will be flushed when
264
        // switching to normal mode.
265
        vaddr = address & TARGET_PAGE_MASK;
266
        prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
267
        ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
268
        return ret;
269
    } else {
270
        if (rw & 2)
271
            env->exception_index = TT_TFAULT;
272
        else
273
            env->exception_index = TT_DFAULT;
274
        return 1;
275
    }
276
}
277

    
278
target_ulong mmu_probe(CPUState *env, target_ulong address, int mmulev)
279
{
280
    target_phys_addr_t pde_ptr;
281
    uint32_t pde;
282

    
283
    /* Context base + context number */
284
    pde_ptr = (target_phys_addr_t)(env->mmuregs[1] << 4) +
285
        (env->mmuregs[2] << 2);
286
    pde = ldl_phys(pde_ptr);
287

    
288
    switch (pde & PTE_ENTRYTYPE_MASK) {
289
    default:
290
    case 0: /* Invalid */
291
    case 2: /* PTE, maybe should not happen? */
292
    case 3: /* Reserved */
293
        return 0;
294
    case 1: /* L1 PDE */
295
        if (mmulev == 3)
296
            return pde;
297
        pde_ptr = ((address >> 22) & ~3) + ((pde & ~3) << 4);
298
        pde = ldl_phys(pde_ptr);
299

    
300
        switch (pde & PTE_ENTRYTYPE_MASK) {
301
        default:
302
        case 0: /* Invalid */
303
        case 3: /* Reserved */
304
            return 0;
305
        case 2: /* L1 PTE */
306
            return pde;
307
        case 1: /* L2 PDE */
308
            if (mmulev == 2)
309
                return pde;
310
            pde_ptr = ((address & 0xfc0000) >> 16) + ((pde & ~3) << 4);
311
            pde = ldl_phys(pde_ptr);
312

    
313
            switch (pde & PTE_ENTRYTYPE_MASK) {
314
            default:
315
            case 0: /* Invalid */
316
            case 3: /* Reserved */
317
                return 0;
318
            case 2: /* L2 PTE */
319
                return pde;
320
            case 1: /* L3 PDE */
321
                if (mmulev == 1)
322
                    return pde;
323
                pde_ptr = ((address & 0x3f000) >> 10) + ((pde & ~3) << 4);
324
                pde = ldl_phys(pde_ptr);
325

    
326
                switch (pde & PTE_ENTRYTYPE_MASK) {
327
                default:
328
                case 0: /* Invalid */
329
                case 1: /* PDE, should not happen */
330
                case 3: /* Reserved */
331
                    return 0;
332
                case 2: /* L3 PTE */
333
                    return pde;
334
                }
335
            }
336
        }
337
    }
338
    return 0;
339
}
340

    
341
#ifdef DEBUG_MMU
342
void dump_mmu(CPUState *env)
343
{
344
    target_ulong va, va1, va2;
345
    unsigned int n, m, o;
346
    target_phys_addr_t pde_ptr, pa;
347
    uint32_t pde;
348

    
349
    printf("MMU dump:\n");
350
    pde_ptr = (env->mmuregs[1] << 4) + (env->mmuregs[2] << 2);
351
    pde = ldl_phys(pde_ptr);
352
    printf("Root ptr: " TARGET_FMT_plx ", ctx: %d\n",
353
           (target_phys_addr_t)env->mmuregs[1] << 4, env->mmuregs[2]);
354
    for (n = 0, va = 0; n < 256; n++, va += 16 * 1024 * 1024) {
355
        pde = mmu_probe(env, va, 2);
356
        if (pde) {
357
            pa = cpu_get_phys_page_debug(env, va);
358
            printf("VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_plx
359
                   " PDE: " TARGET_FMT_lx "\n", va, pa, pde);
360
            for (m = 0, va1 = va; m < 64; m++, va1 += 256 * 1024) {
361
                pde = mmu_probe(env, va1, 1);
362
                if (pde) {
363
                    pa = cpu_get_phys_page_debug(env, va1);
364
                    printf(" VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_plx
365
                           " PDE: " TARGET_FMT_lx "\n", va1, pa, pde);
366
                    for (o = 0, va2 = va1; o < 64; o++, va2 += 4 * 1024) {
367
                        pde = mmu_probe(env, va2, 0);
368
                        if (pde) {
369
                            pa = cpu_get_phys_page_debug(env, va2);
370
                            printf("  VA: " TARGET_FMT_lx ", PA: "
371
                                   TARGET_FMT_plx " PTE: " TARGET_FMT_lx "\n",
372
                                   va2, pa, pde);
373
                        }
374
                    }
375
                }
376
            }
377
        }
378
    }
379
    printf("MMU dump ends\n");
380
}
381
#endif /* DEBUG_MMU */
382

    
383
#else /* !TARGET_SPARC64 */
384
/*
385
 * UltraSparc IIi I/DMMUs
386
 */
387
static int get_physical_address_data(CPUState *env, target_phys_addr_t *physical, int *prot,
388
                          int *access_index, target_ulong address, int rw,
389
                          int is_user)
390
{
391
    target_ulong mask;
392
    unsigned int i;
393

    
394
    if ((env->lsu & DMMU_E) == 0) { /* DMMU disabled */
395
        *physical = address;
396
        *prot = PAGE_READ | PAGE_WRITE;
397
        return 0;
398
    }
399

    
400
    for (i = 0; i < 64; i++) {
401
        switch ((env->dtlb_tte[i] >> 61) & 3) {
402
        default:
403
        case 0x0: // 8k
404
            mask = 0xffffffffffffe000ULL;
405
            break;
406
        case 0x1: // 64k
407
            mask = 0xffffffffffff0000ULL;
408
            break;
409
        case 0x2: // 512k
410
            mask = 0xfffffffffff80000ULL;
411
            break;
412
        case 0x3: // 4M
413
            mask = 0xffffffffffc00000ULL;
414
            break;
415
        }
416
        // ctx match, vaddr match?
417
        if (env->dmmuregs[1] == (env->dtlb_tag[i] & 0x1fff) &&
418
            (address & mask) == (env->dtlb_tag[i] & ~0x1fffULL)) {
419
            // valid, access ok?
420
            if ((env->dtlb_tte[i] & 0x8000000000000000ULL) == 0 ||
421
                ((env->dtlb_tte[i] & 0x4) && is_user) ||
422
                (!(env->dtlb_tte[i] & 0x2) && (rw == 1))) {
423
                if (env->dmmuregs[3]) /* Fault status register */
424
                    env->dmmuregs[3] = 2; /* overflow (not read before another fault) */
425
                env->dmmuregs[3] |= (is_user << 3) | ((rw == 1) << 2) | 1;
426
                env->dmmuregs[4] = address; /* Fault address register */
427
                env->exception_index = TT_DFAULT;
428
#ifdef DEBUG_MMU
429
                printf("DFAULT at 0x%" PRIx64 "\n", address);
430
#endif
431
                return 1;
432
            }
433
            *physical = (env->dtlb_tte[i] & mask & 0x1fffffff000ULL) + (address & ~mask & 0x1fffffff000ULL);
434
            *prot = PAGE_READ;
435
            if (env->dtlb_tte[i] & 0x2)
436
                *prot |= PAGE_WRITE;
437
            return 0;
438
        }
439
    }
440
#ifdef DEBUG_MMU
441
    printf("DMISS at 0x%" PRIx64 "\n", address);
442
#endif
443
    env->exception_index = TT_DMISS;
444
    return 1;
445
}
446

    
447
static int get_physical_address_code(CPUState *env, target_phys_addr_t *physical, int *prot,
448
                          int *access_index, target_ulong address, int rw,
449
                          int is_user)
450
{
451
    target_ulong mask;
452
    unsigned int i;
453

    
454
    if ((env->lsu & IMMU_E) == 0) { /* IMMU disabled */
455
        *physical = address;
456
        *prot = PAGE_EXEC;
457
        return 0;
458
    }
459

    
460
    for (i = 0; i < 64; i++) {
461
        switch ((env->itlb_tte[i] >> 61) & 3) {
462
        default:
463
        case 0x0: // 8k
464
            mask = 0xffffffffffffe000ULL;
465
            break;
466
        case 0x1: // 64k
467
            mask = 0xffffffffffff0000ULL;
468
            break;
469
        case 0x2: // 512k
470
            mask = 0xfffffffffff80000ULL;
471
            break;
472
        case 0x3: // 4M
473
            mask = 0xffffffffffc00000ULL;
474
                break;
475
        }
476
        // ctx match, vaddr match?
477
        if (env->dmmuregs[1] == (env->itlb_tag[i] & 0x1fff) &&
478
            (address & mask) == (env->itlb_tag[i] & ~0x1fffULL)) {
479
            // valid, access ok?
480
            if ((env->itlb_tte[i] & 0x8000000000000000ULL) == 0 ||
481
                ((env->itlb_tte[i] & 0x4) && is_user)) {
482
                if (env->immuregs[3]) /* Fault status register */
483
                    env->immuregs[3] = 2; /* overflow (not read before another fault) */
484
                env->immuregs[3] |= (is_user << 3) | 1;
485
                env->exception_index = TT_TFAULT;
486
#ifdef DEBUG_MMU
487
                printf("TFAULT at 0x%" PRIx64 "\n", address);
488
#endif
489
                return 1;
490
            }
491
            *physical = (env->itlb_tte[i] & mask & 0x1fffffff000ULL) + (address & ~mask & 0x1fffffff000ULL);
492
            *prot = PAGE_EXEC;
493
            return 0;
494
        }
495
    }
496
#ifdef DEBUG_MMU
497
    printf("TMISS at 0x%" PRIx64 "\n", address);
498
#endif
499
    env->exception_index = TT_TMISS;
500
    return 1;
501
}
502

    
503
static int get_physical_address(CPUState *env, target_phys_addr_t *physical,
504
                                int *prot, int *access_index,
505
                                target_ulong address, int rw, int mmu_idx)
506
{
507
    int is_user = mmu_idx == MMU_USER_IDX;
508

    
509
    if (rw == 2)
510
        return get_physical_address_code(env, physical, prot, access_index, address, rw, is_user);
511
    else
512
        return get_physical_address_data(env, physical, prot, access_index, address, rw, is_user);
513
}
514

    
515
/* Perform address translation */
516
int cpu_sparc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
517
                              int mmu_idx, int is_softmmu)
518
{
519
    target_ulong virt_addr, vaddr;
520
    target_phys_addr_t paddr;
521
    int error_code = 0, prot, ret = 0, access_index;
522

    
523
    error_code = get_physical_address(env, &paddr, &prot, &access_index, address, rw, mmu_idx);
524
    if (error_code == 0) {
525
        virt_addr = address & TARGET_PAGE_MASK;
526
        vaddr = virt_addr + ((address & TARGET_PAGE_MASK) & (TARGET_PAGE_SIZE - 1));
527
#ifdef DEBUG_MMU
528
        printf("Translate at 0x%" PRIx64 " -> 0x%" PRIx64 ", vaddr 0x%" PRIx64 "\n", address, paddr, vaddr);
529
#endif
530
        ret = tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
531
        return ret;
532
    }
533
    // XXX
534
    return 1;
535
}
536

    
537
#ifdef DEBUG_MMU
538
void dump_mmu(CPUState *env)
539
{
540
    unsigned int i;
541
    const char *mask;
542

    
543
    printf("MMU contexts: Primary: %" PRId64 ", Secondary: %" PRId64 "\n", env->dmmuregs[1], env->dmmuregs[2]);
544
    if ((env->lsu & DMMU_E) == 0) {
545
        printf("DMMU disabled\n");
546
    } else {
547
        printf("DMMU dump:\n");
548
        for (i = 0; i < 64; i++) {
549
            switch ((env->dtlb_tte[i] >> 61) & 3) {
550
            default:
551
            case 0x0:
552
                mask = "  8k";
553
                break;
554
            case 0x1:
555
                mask = " 64k";
556
                break;
557
            case 0x2:
558
                mask = "512k";
559
                break;
560
            case 0x3:
561
                mask = "  4M";
562
                break;
563
            }
564
            if ((env->dtlb_tte[i] & 0x8000000000000000ULL) != 0) {
565
                printf("VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx ", %s, %s, %s, %s, ctx %" PRId64 "\n",
566
                       env->dtlb_tag[i] & ~0x1fffULL,
567
                       env->dtlb_tte[i] & 0x1ffffffe000ULL,
568
                       mask,
569
                       env->dtlb_tte[i] & 0x4? "priv": "user",
570
                       env->dtlb_tte[i] & 0x2? "RW": "RO",
571
                       env->dtlb_tte[i] & 0x40? "locked": "unlocked",
572
                       env->dtlb_tag[i] & 0x1fffULL);
573
            }
574
        }
575
    }
576
    if ((env->lsu & IMMU_E) == 0) {
577
        printf("IMMU disabled\n");
578
    } else {
579
        printf("IMMU dump:\n");
580
        for (i = 0; i < 64; i++) {
581
            switch ((env->itlb_tte[i] >> 61) & 3) {
582
            default:
583
            case 0x0:
584
                mask = "  8k";
585
                break;
586
            case 0x1:
587
                mask = " 64k";
588
                break;
589
            case 0x2:
590
                mask = "512k";
591
                break;
592
            case 0x3:
593
                mask = "  4M";
594
                break;
595
            }
596
            if ((env->itlb_tte[i] & 0x8000000000000000ULL) != 0) {
597
                printf("VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx ", %s, %s, %s, ctx %" PRId64 "\n",
598
                       env->itlb_tag[i] & ~0x1fffULL,
599
                       env->itlb_tte[i] & 0x1ffffffe000ULL,
600
                       mask,
601
                       env->itlb_tte[i] & 0x4? "priv": "user",
602
                       env->itlb_tte[i] & 0x40? "locked": "unlocked",
603
                       env->itlb_tag[i] & 0x1fffULL);
604
            }
605
        }
606
    }
607
}
608
#endif /* DEBUG_MMU */
609

    
610
#endif /* TARGET_SPARC64 */
611
#endif /* !CONFIG_USER_ONLY */
612

    
613

    
614
#if defined(CONFIG_USER_ONLY)
615
target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
616
{
617
    return addr;
618
}
619

    
620
#else
621
target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
622
{
623
    target_phys_addr_t phys_addr;
624
    int prot, access_index;
625

    
626
    if (get_physical_address(env, &phys_addr, &prot, &access_index, addr, 2,
627
                             MMU_KERNEL_IDX) != 0)
628
        if (get_physical_address(env, &phys_addr, &prot, &access_index, addr,
629
                                 0, MMU_KERNEL_IDX) != 0)
630
            return -1;
631
    if (cpu_get_physical_page_desc(phys_addr) == IO_MEM_UNASSIGNED)
632
        return -1;
633
    return phys_addr;
634
}
635
#endif
636

    
637
void memcpy32(target_ulong *dst, const target_ulong *src)
638
{
639
    dst[0] = src[0];
640
    dst[1] = src[1];
641
    dst[2] = src[2];
642
    dst[3] = src[3];
643
    dst[4] = src[4];
644
    dst[5] = src[5];
645
    dst[6] = src[6];
646
    dst[7] = src[7];
647
}
648

    
649
void helper_flush(target_ulong addr)
650
{
651
    addr &= ~7;
652
    tb_invalidate_page_range(addr, addr + 8);
653
}
654

    
655
void cpu_reset(CPUSPARCState *env)
656
{
657
    tlb_flush(env, 1);
658
    env->cwp = 0;
659
    env->wim = 1;
660
    env->regwptr = env->regbase + (env->cwp * 16);
661
#if defined(CONFIG_USER_ONLY)
662
    env->user_mode_only = 1;
663
#ifdef TARGET_SPARC64
664
    env->cleanwin = NWINDOWS - 2;
665
    env->cansave = NWINDOWS - 2;
666
    env->pstate = PS_RMO | PS_PEF | PS_IE;
667
    env->asi = 0x82; // Primary no-fault
668
#endif
669
#else
670
    env->psret = 0;
671
    env->psrs = 1;
672
    env->psrps = 1;
673
#ifdef TARGET_SPARC64
674
    env->pstate = PS_PRIV;
675
    env->hpstate = HS_PRIV;
676
    env->pc = 0x1fff0000000ULL;
677
    env->tsptr = &env->ts[env->tl];
678
#else
679
    env->pc = 0;
680
    env->mmuregs[0] &= ~(MMU_E | MMU_NF);
681
    env->mmuregs[0] |= env->mmu_bm;
682
#endif
683
    env->npc = env->pc + 4;
684
#endif
685
}
686

    
687
CPUSPARCState *cpu_sparc_init(const char *cpu_model)
688
{
689
    CPUSPARCState *env;
690
    const sparc_def_t *def;
691

    
692
    def = cpu_sparc_find_by_name(cpu_model);
693
    if (!def)
694
        return NULL;
695

    
696
    env = qemu_mallocz(sizeof(CPUSPARCState));
697
    if (!env)
698
        return NULL;
699
    cpu_exec_init(env);
700
    env->cpu_model_str = cpu_model;
701
    env->version = def->iu_version;
702
    env->fsr = def->fpu_version;
703
#if !defined(TARGET_SPARC64)
704
    env->mmu_bm = def->mmu_bm;
705
    env->mmu_ctpr_mask = def->mmu_ctpr_mask;
706
    env->mmu_cxr_mask = def->mmu_cxr_mask;
707
    env->mmu_sfsr_mask = def->mmu_sfsr_mask;
708
    env->mmu_trcr_mask = def->mmu_trcr_mask;
709
    env->mmuregs[0] |= def->mmu_version;
710
    cpu_sparc_set_id(env, 0);
711
#endif
712

    
713
    gen_intermediate_code_init(env);
714

    
715
    cpu_reset(env);
716

    
717
    return env;
718
}
719

    
720
void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu)
721
{
722
#if !defined(TARGET_SPARC64)
723
    env->mxccregs[7] = ((cpu + 8) & 0xf) << 24;
724
#endif
725
}
726

    
727
static const sparc_def_t sparc_defs[] = {
728
#ifdef TARGET_SPARC64
729
    {
730
        .name = "Fujitsu Sparc64",
731
        .iu_version = ((0x04ULL << 48) | (0x02ULL << 32) | (0ULL << 24)
732
                       | (MAXTL << 8) | (NWINDOWS - 1)),
733
        .fpu_version = 0x00000000,
734
        .mmu_version = 0,
735
    },
736
    {
737
        .name = "Fujitsu Sparc64 III",
738
        .iu_version = ((0x04ULL << 48) | (0x03ULL << 32) | (0ULL << 24)
739
                       | (MAXTL << 8) | (NWINDOWS - 1)),
740
        .fpu_version = 0x00000000,
741
        .mmu_version = 0,
742
    },
743
    {
744
        .name = "Fujitsu Sparc64 IV",
745
        .iu_version = ((0x04ULL << 48) | (0x04ULL << 32) | (0ULL << 24)
746
                       | (MAXTL << 8) | (NWINDOWS - 1)),
747
        .fpu_version = 0x00000000,
748
        .mmu_version = 0,
749
    },
750
    {
751
        .name = "Fujitsu Sparc64 V",
752
        .iu_version = ((0x04ULL << 48) | (0x05ULL << 32) | (0x51ULL << 24)
753
                       | (MAXTL << 8) | (NWINDOWS - 1)),
754
        .fpu_version = 0x00000000,
755
        .mmu_version = 0,
756
    },
757
    {
758
        .name = "TI UltraSparc I",
759
        .iu_version = ((0x17ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)
760
                       | (MAXTL << 8) | (NWINDOWS - 1)),
761
        .fpu_version = 0x00000000,
762
        .mmu_version = 0,
763
    },
764
    {
765
        .name = "TI UltraSparc II",
766
        .iu_version = ((0x17ULL << 48) | (0x11ULL << 32) | (0x20ULL << 24)
767
                       | (MAXTL << 8) | (NWINDOWS - 1)),
768
        .fpu_version = 0x00000000,
769
        .mmu_version = 0,
770
    },
771
    {
772
        .name = "TI UltraSparc IIi",
773
        .iu_version = ((0x17ULL << 48) | (0x12ULL << 32) | (0x91ULL << 24)
774
                       | (MAXTL << 8) | (NWINDOWS - 1)),
775
        .fpu_version = 0x00000000,
776
        .mmu_version = 0,
777
    },
778
    {
779
        .name = "TI UltraSparc IIe",
780
        .iu_version = ((0x17ULL << 48) | (0x13ULL << 32) | (0x14ULL << 24)
781
                       | (MAXTL << 8) | (NWINDOWS - 1)),
782
        .fpu_version = 0x00000000,
783
        .mmu_version = 0,
784
    },
785
    {
786
        .name = "Sun UltraSparc III",
787
        .iu_version = ((0x3eULL << 48) | (0x14ULL << 32) | (0x34ULL << 24)
788
                       | (MAXTL << 8) | (NWINDOWS - 1)),
789
        .fpu_version = 0x00000000,
790
        .mmu_version = 0,
791
    },
792
    {
793
        .name = "Sun UltraSparc III Cu",
794
        .iu_version = ((0x3eULL << 48) | (0x15ULL << 32) | (0x41ULL << 24)
795
                       | (MAXTL << 8) | (NWINDOWS - 1)),
796
        .fpu_version = 0x00000000,
797
        .mmu_version = 0,
798
    },
799
    {
800
        .name = "Sun UltraSparc IIIi",
801
        .iu_version = ((0x3eULL << 48) | (0x16ULL << 32) | (0x34ULL << 24)
802
                       | (MAXTL << 8) | (NWINDOWS - 1)),
803
        .fpu_version = 0x00000000,
804
        .mmu_version = 0,
805
    },
806
    {
807
        .name = "Sun UltraSparc IV",
808
        .iu_version = ((0x3eULL << 48) | (0x18ULL << 32) | (0x31ULL << 24)
809
                       | (MAXTL << 8) | (NWINDOWS - 1)),
810
        .fpu_version = 0x00000000,
811
        .mmu_version = 0,
812
    },
813
    {
814
        .name = "Sun UltraSparc IV+",
815
        .iu_version = ((0x3eULL << 48) | (0x19ULL << 32) | (0x22ULL << 24)
816
                       | (MAXTL << 8) | (NWINDOWS - 1)),
817
        .fpu_version = 0x00000000,
818
        .mmu_version = 0,
819
    },
820
    {
821
        .name = "Sun UltraSparc IIIi+",
822
        .iu_version = ((0x3eULL << 48) | (0x22ULL << 32) | (0ULL << 24)
823
                       | (MAXTL << 8) | (NWINDOWS - 1)),
824
        .fpu_version = 0x00000000,
825
        .mmu_version = 0,
826
    },
827
    {
828
        .name = "NEC UltraSparc I",
829
        .iu_version = ((0x22ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)
830
                       | (MAXTL << 8) | (NWINDOWS - 1)),
831
        .fpu_version = 0x00000000,
832
        .mmu_version = 0,
833
    },
834
#else
835
    {
836
        .name = "Fujitsu MB86900",
837
        .iu_version = 0x00 << 24, /* Impl 0, ver 0 */
838
        .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
839
        .mmu_version = 0x00 << 24, /* Impl 0, ver 0 */
840
        .mmu_bm = 0x00004000,
841
        .mmu_ctpr_mask = 0x007ffff0,
842
        .mmu_cxr_mask = 0x0000003f,
843
        .mmu_sfsr_mask = 0xffffffff,
844
        .mmu_trcr_mask = 0xffffffff,
845
    },
846
    {
847
        .name = "Fujitsu MB86904",
848
        .iu_version = 0x04 << 24, /* Impl 0, ver 4 */
849
        .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
850
        .mmu_version = 0x04 << 24, /* Impl 0, ver 4 */
851
        .mmu_bm = 0x00004000,
852
        .mmu_ctpr_mask = 0x00ffffc0,
853
        .mmu_cxr_mask = 0x000000ff,
854
        .mmu_sfsr_mask = 0x00016fff,
855
        .mmu_trcr_mask = 0x00ffffff,
856
    },
857
    {
858
        .name = "Fujitsu MB86907",
859
        .iu_version = 0x05 << 24, /* Impl 0, ver 5 */
860
        .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
861
        .mmu_version = 0x05 << 24, /* Impl 0, ver 5 */
862
        .mmu_bm = 0x00004000,
863
        .mmu_ctpr_mask = 0xffffffc0,
864
        .mmu_cxr_mask = 0x000000ff,
865
        .mmu_sfsr_mask = 0x00016fff,
866
        .mmu_trcr_mask = 0xffffffff,
867
    },
868
    {
869
        .name = "LSI L64811",
870
        .iu_version = 0x10 << 24, /* Impl 1, ver 0 */
871
        .fpu_version = 1 << 17, /* FPU version 1 (LSI L64814) */
872
        .mmu_version = 0x10 << 24,
873
        .mmu_bm = 0x00004000,
874
        .mmu_ctpr_mask = 0x007ffff0,
875
        .mmu_cxr_mask = 0x0000003f,
876
        .mmu_sfsr_mask = 0xffffffff,
877
        .mmu_trcr_mask = 0xffffffff,
878
    },
879
    {
880
        .name = "Cypress CY7C601",
881
        .iu_version = 0x11 << 24, /* Impl 1, ver 1 */
882
        .fpu_version = 3 << 17, /* FPU version 3 (Cypress CY7C602) */
883
        .mmu_version = 0x10 << 24,
884
        .mmu_bm = 0x00004000,
885
        .mmu_ctpr_mask = 0x007ffff0,
886
        .mmu_cxr_mask = 0x0000003f,
887
        .mmu_sfsr_mask = 0xffffffff,
888
        .mmu_trcr_mask = 0xffffffff,
889
    },
890
    {
891
        .name = "Cypress CY7C611",
892
        .iu_version = 0x13 << 24, /* Impl 1, ver 3 */
893
        .fpu_version = 3 << 17, /* FPU version 3 (Cypress CY7C602) */
894
        .mmu_version = 0x10 << 24,
895
        .mmu_bm = 0x00004000,
896
        .mmu_ctpr_mask = 0x007ffff0,
897
        .mmu_cxr_mask = 0x0000003f,
898
        .mmu_sfsr_mask = 0xffffffff,
899
        .mmu_trcr_mask = 0xffffffff,
900
    },
901
    {
902
        .name = "TI SuperSparc II",
903
        .iu_version = 0x40000000,
904
        .fpu_version = 0 << 17,
905
        .mmu_version = 0x04000000,
906
        .mmu_bm = 0x00002000,
907
        .mmu_ctpr_mask = 0xffffffc0,
908
        .mmu_cxr_mask = 0x0000ffff,
909
        .mmu_sfsr_mask = 0xffffffff,
910
        .mmu_trcr_mask = 0xffffffff,
911
    },
912
    {
913
        .name = "TI MicroSparc I",
914
        .iu_version = 0x41000000,
915
        .fpu_version = 4 << 17,
916
        .mmu_version = 0x41000000,
917
        .mmu_bm = 0x00004000,
918
        .mmu_ctpr_mask = 0x007ffff0,
919
        .mmu_cxr_mask = 0x0000003f,
920
        .mmu_sfsr_mask = 0x00016fff,
921
        .mmu_trcr_mask = 0x0000003f,
922
    },
923
    {
924
        .name = "TI MicroSparc II",
925
        .iu_version = 0x42000000,
926
        .fpu_version = 4 << 17,
927
        .mmu_version = 0x02000000,
928
        .mmu_bm = 0x00004000,
929
        .mmu_ctpr_mask = 0x00ffffc0,
930
        .mmu_cxr_mask = 0x000000ff,
931
        .mmu_sfsr_mask = 0x00016fff,
932
        .mmu_trcr_mask = 0x00ffffff,
933
    },
934
    {
935
        .name = "TI MicroSparc IIep",
936
        .iu_version = 0x42000000,
937
        .fpu_version = 4 << 17,
938
        .mmu_version = 0x04000000,
939
        .mmu_bm = 0x00004000,
940
        .mmu_ctpr_mask = 0x00ffffc0,
941
        .mmu_cxr_mask = 0x000000ff,
942
        .mmu_sfsr_mask = 0x00016bff,
943
        .mmu_trcr_mask = 0x00ffffff,
944
    },
945
    {
946
        .name = "TI SuperSparc 51",
947
        .iu_version = 0x43000000,
948
        .fpu_version = 0 << 17,
949
        .mmu_version = 0x04000000,
950
        .mmu_bm = 0x00002000,
951
        .mmu_ctpr_mask = 0xffffffc0,
952
        .mmu_cxr_mask = 0x0000ffff,
953
        .mmu_sfsr_mask = 0xffffffff,
954
        .mmu_trcr_mask = 0xffffffff,
955
    },
956
    {
957
        .name = "TI SuperSparc 61",
958
        .iu_version = 0x44000000,
959
        .fpu_version = 0 << 17,
960
        .mmu_version = 0x04000000,
961
        .mmu_bm = 0x00002000,
962
        .mmu_ctpr_mask = 0xffffffc0,
963
        .mmu_cxr_mask = 0x0000ffff,
964
        .mmu_sfsr_mask = 0xffffffff,
965
        .mmu_trcr_mask = 0xffffffff,
966
    },
967
    {
968
        .name = "Ross RT625",
969
        .iu_version = 0x1e000000,
970
        .fpu_version = 1 << 17,
971
        .mmu_version = 0x1e000000,
972
        .mmu_bm = 0x00004000,
973
        .mmu_ctpr_mask = 0x007ffff0,
974
        .mmu_cxr_mask = 0x0000003f,
975
        .mmu_sfsr_mask = 0xffffffff,
976
        .mmu_trcr_mask = 0xffffffff,
977
    },
978
    {
979
        .name = "Ross RT620",
980
        .iu_version = 0x1f000000,
981
        .fpu_version = 1 << 17,
982
        .mmu_version = 0x1f000000,
983
        .mmu_bm = 0x00004000,
984
        .mmu_ctpr_mask = 0x007ffff0,
985
        .mmu_cxr_mask = 0x0000003f,
986
        .mmu_sfsr_mask = 0xffffffff,
987
        .mmu_trcr_mask = 0xffffffff,
988
    },
989
    {
990
        .name = "BIT B5010",
991
        .iu_version = 0x20000000,
992
        .fpu_version = 0 << 17, /* B5010/B5110/B5120/B5210 */
993
        .mmu_version = 0x20000000,
994
        .mmu_bm = 0x00004000,
995
        .mmu_ctpr_mask = 0x007ffff0,
996
        .mmu_cxr_mask = 0x0000003f,
997
        .mmu_sfsr_mask = 0xffffffff,
998
        .mmu_trcr_mask = 0xffffffff,
999
    },
1000
    {
1001
        .name = "Matsushita MN10501",
1002
        .iu_version = 0x50000000,
1003
        .fpu_version = 0 << 17,
1004
        .mmu_version = 0x50000000,
1005
        .mmu_bm = 0x00004000,
1006
        .mmu_ctpr_mask = 0x007ffff0,
1007
        .mmu_cxr_mask = 0x0000003f,
1008
        .mmu_sfsr_mask = 0xffffffff,
1009
        .mmu_trcr_mask = 0xffffffff,
1010
    },
1011
    {
1012
        .name = "Weitek W8601",
1013
        .iu_version = 0x90 << 24, /* Impl 9, ver 0 */
1014
        .fpu_version = 3 << 17, /* FPU version 3 (Weitek WTL3170/2) */
1015
        .mmu_version = 0x10 << 24,
1016
        .mmu_bm = 0x00004000,
1017
        .mmu_ctpr_mask = 0x007ffff0,
1018
        .mmu_cxr_mask = 0x0000003f,
1019
        .mmu_sfsr_mask = 0xffffffff,
1020
        .mmu_trcr_mask = 0xffffffff,
1021
    },
1022
    {
1023
        .name = "LEON2",
1024
        .iu_version = 0xf2000000,
1025
        .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
1026
        .mmu_version = 0xf2000000,
1027
        .mmu_bm = 0x00004000,
1028
        .mmu_ctpr_mask = 0x007ffff0,
1029
        .mmu_cxr_mask = 0x0000003f,
1030
        .mmu_sfsr_mask = 0xffffffff,
1031
        .mmu_trcr_mask = 0xffffffff,
1032
    },
1033
    {
1034
        .name = "LEON3",
1035
        .iu_version = 0xf3000000,
1036
        .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
1037
        .mmu_version = 0xf3000000,
1038
        .mmu_bm = 0x00004000,
1039
        .mmu_ctpr_mask = 0x007ffff0,
1040
        .mmu_cxr_mask = 0x0000003f,
1041
        .mmu_sfsr_mask = 0xffffffff,
1042
        .mmu_trcr_mask = 0xffffffff,
1043
    },
1044
#endif
1045
};
1046

    
1047
static const sparc_def_t *cpu_sparc_find_by_name(const unsigned char *name)
1048
{
1049
    unsigned int i;
1050

    
1051
    for (i = 0; i < sizeof(sparc_defs) / sizeof(sparc_def_t); i++) {
1052
        if (strcasecmp(name, sparc_defs[i].name) == 0) {
1053
            return &sparc_defs[i];
1054
        }
1055
    }
1056
    return NULL;
1057
}
1058

    
1059
void sparc_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
1060
{
1061
    unsigned int i;
1062

    
1063
    for (i = 0; i < sizeof(sparc_defs) / sizeof(sparc_def_t); i++) {
1064
        (*cpu_fprintf)(f, "Sparc %16s IU " TARGET_FMT_lx " FPU %08x MMU %08x\n",
1065
                       sparc_defs[i].name,
1066
                       sparc_defs[i].iu_version,
1067
                       sparc_defs[i].fpu_version,
1068
                       sparc_defs[i].mmu_version);
1069
    }
1070
}
1071

    
1072
#define GET_FLAG(a,b) ((env->psr & a)?b:'-')
1073

    
1074
void cpu_dump_state(CPUState *env, FILE *f,
1075
                    int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
1076
                    int flags)
1077
{
1078
    int i, x;
1079

    
1080
    cpu_fprintf(f, "pc: " TARGET_FMT_lx "  npc: " TARGET_FMT_lx "\n", env->pc, env->npc);
1081
    cpu_fprintf(f, "General Registers:\n");
1082
    for (i = 0; i < 4; i++)
1083
        cpu_fprintf(f, "%%g%c: " TARGET_FMT_lx "\t", i + '0', env->gregs[i]);
1084
    cpu_fprintf(f, "\n");
1085
    for (; i < 8; i++)
1086
        cpu_fprintf(f, "%%g%c: " TARGET_FMT_lx "\t", i + '0', env->gregs[i]);
1087
    cpu_fprintf(f, "\nCurrent Register Window:\n");
1088
    for (x = 0; x < 3; x++) {
1089
        for (i = 0; i < 4; i++)
1090
            cpu_fprintf(f, "%%%c%d: " TARGET_FMT_lx "\t",
1091
                    (x == 0 ? 'o' : (x == 1 ? 'l' : 'i')), i,
1092
                    env->regwptr[i + x * 8]);
1093
        cpu_fprintf(f, "\n");
1094
        for (; i < 8; i++)
1095
            cpu_fprintf(f, "%%%c%d: " TARGET_FMT_lx "\t",
1096
                    (x == 0 ? 'o' : x == 1 ? 'l' : 'i'), i,
1097
                    env->regwptr[i + x * 8]);
1098
        cpu_fprintf(f, "\n");
1099
    }
1100
    cpu_fprintf(f, "\nFloating Point Registers:\n");
1101
    for (i = 0; i < 32; i++) {
1102
        if ((i & 3) == 0)
1103
            cpu_fprintf(f, "%%f%02d:", i);
1104
        cpu_fprintf(f, " %016lf", env->fpr[i]);
1105
        if ((i & 3) == 3)
1106
            cpu_fprintf(f, "\n");
1107
    }
1108
#ifdef TARGET_SPARC64
1109
    cpu_fprintf(f, "pstate: 0x%08x ccr: 0x%02x asi: 0x%02x tl: %d fprs: %d\n",
1110
                env->pstate, GET_CCR(env), env->asi, env->tl, env->fprs);
1111
    cpu_fprintf(f, "cansave: %d canrestore: %d otherwin: %d wstate %d cleanwin %d cwp %d\n",
1112
                env->cansave, env->canrestore, env->otherwin, env->wstate,
1113
                env->cleanwin, NWINDOWS - 1 - env->cwp);
1114
#else
1115
    cpu_fprintf(f, "psr: 0x%08x -> %c%c%c%c %c%c%c wim: 0x%08x\n", GET_PSR(env),
1116
            GET_FLAG(PSR_ZERO, 'Z'), GET_FLAG(PSR_OVF, 'V'),
1117
            GET_FLAG(PSR_NEG, 'N'), GET_FLAG(PSR_CARRY, 'C'),
1118
            env->psrs?'S':'-', env->psrps?'P':'-',
1119
            env->psret?'E':'-', env->wim);
1120
#endif
1121
    cpu_fprintf(f, "fsr: 0x%08x\n", GET_FSR32(env));
1122
}
1123

    
1124
#ifdef TARGET_SPARC64
1125
#if !defined(CONFIG_USER_ONLY)
1126
#include "qemu-common.h"
1127
#include "hw/irq.h"
1128
#include "qemu-timer.h"
1129
#endif
1130

    
1131
void helper_tick_set_count(void *opaque, uint64_t count)
1132
{
1133
#if !defined(CONFIG_USER_ONLY)
1134
    ptimer_set_count(opaque, -count);
1135
#endif
1136
}
1137

    
1138
uint64_t helper_tick_get_count(void *opaque)
1139
{
1140
#if !defined(CONFIG_USER_ONLY)
1141
    return -ptimer_get_count(opaque);
1142
#else
1143
    return 0;
1144
#endif
1145
}
1146

    
1147
void helper_tick_set_limit(void *opaque, uint64_t limit)
1148
{
1149
#if !defined(CONFIG_USER_ONLY)
1150
    ptimer_set_limit(opaque, -limit, 0);
1151
#endif
1152
}
1153
#endif