tlb: Add "ifetch" argument to cpu_mmu_index()
[qemu.git] / include / exec / cpu_ldst.h
CommitLineData
f08b6170
PB
1/*
2 * Software MMU support
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
16 *
17 */
18
19/*
20 * Generate inline load/store functions for all MMU modes (typically
21 * at least _user and _kernel) as well as _data versions, for all data
22 * sizes.
23 *
24 * Used by target op helpers.
25 *
db5fd8d7
PM
26 * The syntax for the accessors is:
27 *
28 * load: cpu_ld{sign}{size}_{mmusuffix}(env, ptr)
29 *
30 * store: cpu_st{sign}{size}_{mmusuffix}(env, ptr, val)
31 *
32 * sign is:
33 * (empty): for 32 and 64 bit sizes
34 * u : unsigned
35 * s : signed
36 *
37 * size is:
38 * b: 8 bits
39 * w: 16 bits
40 * l: 32 bits
41 * q: 64 bits
42 *
43 * mmusuffix is one of the generic suffixes "data" or "code", or
44 * (for softmmu configs) a target-specific MMU mode suffix as defined
45 * in target cpu.h.
f08b6170
PB
46 */
47#ifndef CPU_LDST_H
48#define CPU_LDST_H
49
c773828a
PB
50#if defined(CONFIG_USER_ONLY)
51/* All direct uses of g2h and h2g need to go away for usermode softmmu. */
b76f21a7 52#define g2h(x) ((void *)((unsigned long)(target_ulong)(x) + guest_base))
c773828a
PB
53
54#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS
55#define h2g_valid(x) 1
56#else
57#define h2g_valid(x) ({ \
b76f21a7 58 unsigned long __guest = (unsigned long)(x) - guest_base; \
c773828a 59 (__guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) && \
b76f21a7 60 (!reserved_va || (__guest < reserved_va)); \
c773828a
PB
61})
62#endif
63
64#define h2g_nocheck(x) ({ \
b76f21a7 65 unsigned long __ret = (unsigned long)(x) - guest_base; \
c773828a
PB
66 (abi_ulong)__ret; \
67})
68
69#define h2g(x) ({ \
70 /* Check if given address fits target address space */ \
71 assert(h2g_valid(x)); \
72 h2g_nocheck(x); \
73})
74
f08b6170
PB
75#endif
76
c773828a
PB
77#if defined(CONFIG_USER_ONLY)
78
9220fe54
PM
79/* In user-only mode we provide only the _code and _data accessors. */
80
81#define MEMSUFFIX _data
82#define DATA_SIZE 1
83#include "exec/cpu_ldst_useronly_template.h"
84
85#define DATA_SIZE 2
86#include "exec/cpu_ldst_useronly_template.h"
87
88#define DATA_SIZE 4
89#include "exec/cpu_ldst_useronly_template.h"
90
91#define DATA_SIZE 8
92#include "exec/cpu_ldst_useronly_template.h"
93#undef MEMSUFFIX
94
95#define MEMSUFFIX _code
96#define CODE_ACCESS
97#define DATA_SIZE 1
98#include "exec/cpu_ldst_useronly_template.h"
99
100#define DATA_SIZE 2
101#include "exec/cpu_ldst_useronly_template.h"
102
103#define DATA_SIZE 4
104#include "exec/cpu_ldst_useronly_template.h"
105
106#define DATA_SIZE 8
107#include "exec/cpu_ldst_useronly_template.h"
108#undef MEMSUFFIX
109#undef CODE_ACCESS
c773828a
PB
110
111#else
112
c773828a
PB
113/* The memory helpers for tcg-generated code need tcg_target_long etc. */
114#include "tcg.h"
115
116uint8_t helper_ldb_mmu(CPUArchState *env, target_ulong addr, int mmu_idx);
117uint16_t helper_ldw_mmu(CPUArchState *env, target_ulong addr, int mmu_idx);
118uint32_t helper_ldl_mmu(CPUArchState *env, target_ulong addr, int mmu_idx);
119uint64_t helper_ldq_mmu(CPUArchState *env, target_ulong addr, int mmu_idx);
120
121void helper_stb_mmu(CPUArchState *env, target_ulong addr,
122 uint8_t val, int mmu_idx);
123void helper_stw_mmu(CPUArchState *env, target_ulong addr,
124 uint16_t val, int mmu_idx);
125void helper_stl_mmu(CPUArchState *env, target_ulong addr,
126 uint32_t val, int mmu_idx);
127void helper_stq_mmu(CPUArchState *env, target_ulong addr,
128 uint64_t val, int mmu_idx);
129
130uint8_t helper_ldb_cmmu(CPUArchState *env, target_ulong addr, int mmu_idx);
131uint16_t helper_ldw_cmmu(CPUArchState *env, target_ulong addr, int mmu_idx);
132uint32_t helper_ldl_cmmu(CPUArchState *env, target_ulong addr, int mmu_idx);
133uint64_t helper_ldq_cmmu(CPUArchState *env, target_ulong addr, int mmu_idx);
134
de5ee4a8 135#ifdef MMU_MODE0_SUFFIX
c773828a
PB
136#define CPU_MMU_INDEX 0
137#define MEMSUFFIX MMU_MODE0_SUFFIX
138#define DATA_SIZE 1
139#include "exec/cpu_ldst_template.h"
140
141#define DATA_SIZE 2
142#include "exec/cpu_ldst_template.h"
143
144#define DATA_SIZE 4
145#include "exec/cpu_ldst_template.h"
146
147#define DATA_SIZE 8
148#include "exec/cpu_ldst_template.h"
149#undef CPU_MMU_INDEX
150#undef MEMSUFFIX
de5ee4a8 151#endif
c773828a 152
de5ee4a8 153#if (NB_MMU_MODES >= 2) && defined(MMU_MODE1_SUFFIX)
c773828a
PB
154#define CPU_MMU_INDEX 1
155#define MEMSUFFIX MMU_MODE1_SUFFIX
156#define DATA_SIZE 1
157#include "exec/cpu_ldst_template.h"
158
159#define DATA_SIZE 2
160#include "exec/cpu_ldst_template.h"
161
162#define DATA_SIZE 4
163#include "exec/cpu_ldst_template.h"
164
165#define DATA_SIZE 8
166#include "exec/cpu_ldst_template.h"
167#undef CPU_MMU_INDEX
168#undef MEMSUFFIX
de5ee4a8 169#endif
c773828a 170
de5ee4a8 171#if (NB_MMU_MODES >= 3) && defined(MMU_MODE2_SUFFIX)
c773828a
PB
172
173#define CPU_MMU_INDEX 2
174#define MEMSUFFIX MMU_MODE2_SUFFIX
175#define DATA_SIZE 1
176#include "exec/cpu_ldst_template.h"
177
178#define DATA_SIZE 2
179#include "exec/cpu_ldst_template.h"
180
181#define DATA_SIZE 4
182#include "exec/cpu_ldst_template.h"
183
184#define DATA_SIZE 8
185#include "exec/cpu_ldst_template.h"
186#undef CPU_MMU_INDEX
187#undef MEMSUFFIX
188#endif /* (NB_MMU_MODES >= 3) */
189
de5ee4a8 190#if (NB_MMU_MODES >= 4) && defined(MMU_MODE3_SUFFIX)
c773828a
PB
191
192#define CPU_MMU_INDEX 3
193#define MEMSUFFIX MMU_MODE3_SUFFIX
194#define DATA_SIZE 1
195#include "exec/cpu_ldst_template.h"
196
197#define DATA_SIZE 2
198#include "exec/cpu_ldst_template.h"
199
200#define DATA_SIZE 4
201#include "exec/cpu_ldst_template.h"
202
203#define DATA_SIZE 8
204#include "exec/cpu_ldst_template.h"
205#undef CPU_MMU_INDEX
206#undef MEMSUFFIX
207#endif /* (NB_MMU_MODES >= 4) */
208
de5ee4a8 209#if (NB_MMU_MODES >= 5) && defined(MMU_MODE4_SUFFIX)
c773828a
PB
210
211#define CPU_MMU_INDEX 4
212#define MEMSUFFIX MMU_MODE4_SUFFIX
213#define DATA_SIZE 1
214#include "exec/cpu_ldst_template.h"
215
216#define DATA_SIZE 2
217#include "exec/cpu_ldst_template.h"
218
219#define DATA_SIZE 4
220#include "exec/cpu_ldst_template.h"
221
222#define DATA_SIZE 8
223#include "exec/cpu_ldst_template.h"
224#undef CPU_MMU_INDEX
225#undef MEMSUFFIX
226#endif /* (NB_MMU_MODES >= 5) */
227
de5ee4a8 228#if (NB_MMU_MODES >= 6) && defined(MMU_MODE5_SUFFIX)
c773828a
PB
229
230#define CPU_MMU_INDEX 5
231#define MEMSUFFIX MMU_MODE5_SUFFIX
232#define DATA_SIZE 1
233#include "exec/cpu_ldst_template.h"
234
235#define DATA_SIZE 2
236#include "exec/cpu_ldst_template.h"
237
238#define DATA_SIZE 4
239#include "exec/cpu_ldst_template.h"
240
241#define DATA_SIZE 8
242#include "exec/cpu_ldst_template.h"
243#undef CPU_MMU_INDEX
244#undef MEMSUFFIX
245#endif /* (NB_MMU_MODES >= 6) */
246
8f3ae2ae
PM
247#if (NB_MMU_MODES >= 7) && defined(MMU_MODE6_SUFFIX)
248
249#define CPU_MMU_INDEX 6
250#define MEMSUFFIX MMU_MODE6_SUFFIX
251#define DATA_SIZE 1
252#include "exec/cpu_ldst_template.h"
253
254#define DATA_SIZE 2
255#include "exec/cpu_ldst_template.h"
256
257#define DATA_SIZE 4
258#include "exec/cpu_ldst_template.h"
259
260#define DATA_SIZE 8
261#include "exec/cpu_ldst_template.h"
262#undef CPU_MMU_INDEX
263#undef MEMSUFFIX
264#endif /* (NB_MMU_MODES >= 7) */
265
1de29aef
PB
266#if (NB_MMU_MODES >= 8) && defined(MMU_MODE7_SUFFIX)
267
268#define CPU_MMU_INDEX 7
269#define MEMSUFFIX MMU_MODE7_SUFFIX
270#define DATA_SIZE 1
271#include "exec/cpu_ldst_template.h"
272
273#define DATA_SIZE 2
274#include "exec/cpu_ldst_template.h"
275
276#define DATA_SIZE 4
277#include "exec/cpu_ldst_template.h"
278
279#define DATA_SIZE 8
280#include "exec/cpu_ldst_template.h"
281#undef CPU_MMU_INDEX
282#undef MEMSUFFIX
283#endif /* (NB_MMU_MODES >= 8) */
284
285#if (NB_MMU_MODES >= 9) && defined(MMU_MODE8_SUFFIX)
286
287#define CPU_MMU_INDEX 8
288#define MEMSUFFIX MMU_MODE8_SUFFIX
289#define DATA_SIZE 1
290#include "exec/cpu_ldst_template.h"
291
292#define DATA_SIZE 2
293#include "exec/cpu_ldst_template.h"
294
295#define DATA_SIZE 4
296#include "exec/cpu_ldst_template.h"
297
298#define DATA_SIZE 8
299#include "exec/cpu_ldst_template.h"
300#undef CPU_MMU_INDEX
301#undef MEMSUFFIX
302#endif /* (NB_MMU_MODES >= 9) */
303
304#if (NB_MMU_MODES >= 10) && defined(MMU_MODE9_SUFFIX)
305
306#define CPU_MMU_INDEX 9
307#define MEMSUFFIX MMU_MODE9_SUFFIX
308#define DATA_SIZE 1
309#include "exec/cpu_ldst_template.h"
310
311#define DATA_SIZE 2
312#include "exec/cpu_ldst_template.h"
313
314#define DATA_SIZE 4
315#include "exec/cpu_ldst_template.h"
316
317#define DATA_SIZE 8
318#include "exec/cpu_ldst_template.h"
319#undef CPU_MMU_INDEX
320#undef MEMSUFFIX
321#endif /* (NB_MMU_MODES >= 10) */
322
323#if (NB_MMU_MODES >= 11) && defined(MMU_MODE10_SUFFIX)
324
325#define CPU_MMU_INDEX 10
326#define MEMSUFFIX MMU_MODE10_SUFFIX
327#define DATA_SIZE 1
328#include "exec/cpu_ldst_template.h"
329
330#define DATA_SIZE 2
331#include "exec/cpu_ldst_template.h"
332
333#define DATA_SIZE 4
334#include "exec/cpu_ldst_template.h"
335
336#define DATA_SIZE 8
337#include "exec/cpu_ldst_template.h"
338#undef CPU_MMU_INDEX
339#undef MEMSUFFIX
340#endif /* (NB_MMU_MODES >= 11) */
341
342#if (NB_MMU_MODES >= 12) && defined(MMU_MODE11_SUFFIX)
343
344#define CPU_MMU_INDEX 11
345#define MEMSUFFIX MMU_MODE11_SUFFIX
346#define DATA_SIZE 1
347#include "exec/cpu_ldst_template.h"
348
349#define DATA_SIZE 2
350#include "exec/cpu_ldst_template.h"
351
352#define DATA_SIZE 4
353#include "exec/cpu_ldst_template.h"
354
355#define DATA_SIZE 8
356#include "exec/cpu_ldst_template.h"
357#undef CPU_MMU_INDEX
358#undef MEMSUFFIX
359#endif /* (NB_MMU_MODES >= 12) */
360
361#if (NB_MMU_MODES > 12)
362#error "NB_MMU_MODES > 12 is not supported for now"
363#endif /* (NB_MMU_MODES > 12) */
c773828a
PB
364
365/* these access are slower, they must be as rare as possible */
97ed5ccd 366#define CPU_MMU_INDEX (cpu_mmu_index(env, false))
c773828a
PB
367#define MEMSUFFIX _data
368#define DATA_SIZE 1
369#include "exec/cpu_ldst_template.h"
370
371#define DATA_SIZE 2
372#include "exec/cpu_ldst_template.h"
373
374#define DATA_SIZE 4
375#include "exec/cpu_ldst_template.h"
376
377#define DATA_SIZE 8
378#include "exec/cpu_ldst_template.h"
379#undef CPU_MMU_INDEX
380#undef MEMSUFFIX
381
97ed5ccd 382#define CPU_MMU_INDEX (cpu_mmu_index(env, true))
c773828a
PB
383#define MEMSUFFIX _code
384#define SOFTMMU_CODE_ACCESS
385
386#define DATA_SIZE 1
387#include "exec/cpu_ldst_template.h"
388
389#define DATA_SIZE 2
390#include "exec/cpu_ldst_template.h"
391
392#define DATA_SIZE 4
393#include "exec/cpu_ldst_template.h"
394
395#define DATA_SIZE 8
396#include "exec/cpu_ldst_template.h"
397
398#undef CPU_MMU_INDEX
399#undef MEMSUFFIX
400#undef SOFTMMU_CODE_ACCESS
401
2e83c496
AJ
402#endif /* defined(CONFIG_USER_ONLY) */
403
c773828a
PB
404/**
405 * tlb_vaddr_to_host:
406 * @env: CPUArchState
407 * @addr: guest virtual address to look up
408 * @access_type: 0 for read, 1 for write, 2 for execute
409 * @mmu_idx: MMU index to use for lookup
410 *
411 * Look up the specified guest virtual index in the TCG softmmu TLB.
412 * If the TLB contains a host virtual address suitable for direct RAM
413 * access, then return it. Otherwise (TLB miss, TLB entry is for an
414 * I/O access, etc) return NULL.
415 *
416 * This is the equivalent of the initial fast-path code used by
417 * TCG backends for guest load and store accesses.
418 */
419static inline void *tlb_vaddr_to_host(CPUArchState *env, target_ulong addr,
420 int access_type, int mmu_idx)
421{
2e83c496
AJ
422#if defined(CONFIG_USER_ONLY)
423 return g2h(vaddr);
424#else
c773828a
PB
425 int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
426 CPUTLBEntry *tlbentry = &env->tlb_table[mmu_idx][index];
427 target_ulong tlb_addr;
428 uintptr_t haddr;
429
430 switch (access_type) {
431 case 0:
432 tlb_addr = tlbentry->addr_read;
433 break;
434 case 1:
435 tlb_addr = tlbentry->addr_write;
436 break;
437 case 2:
438 tlb_addr = tlbentry->addr_code;
439 break;
440 default:
441 g_assert_not_reached();
442 }
443
444 if ((addr & TARGET_PAGE_MASK)
445 != (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) {
446 /* TLB entry is for a different page */
447 return NULL;
448 }
449
450 if (tlb_addr & ~TARGET_PAGE_MASK) {
451 /* IO access */
452 return NULL;
453 }
454
455 haddr = addr + env->tlb_table[mmu_idx][index].addend;
456 return (void *)haddr;
c773828a 457#endif /* defined(CONFIG_USER_ONLY) */
2e83c496 458}
c773828a 459
f08b6170 460#endif /* CPU_LDST_H */
This page took 0.162118 seconds and 4 git commands to generate.