aboutsummaryrefslogtreecommitdiff
path: root/softmmu_header.h
blob: cf1aa38fc7b084bbeb65f46b81435148fe273b27 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
/*
 *  Software MMU support
 *
 * Generate inline load/store functions for one MMU mode and data
 * size.
 *
 * Generate a store function as well as signed and unsigned loads. For
 * 32 and 64 bit cases, also generate floating point functions with
 * the same size.
 *
 * Not used directly but included from softmmu_exec.h and exec-all.h.
 *
 *  Copyright (c) 2003 Fabrice Bellard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */
#if DATA_SIZE == 8
#define SUFFIX q
#define USUFFIX q
#define DATA_TYPE uint64_t
#elif DATA_SIZE == 4
#define SUFFIX l
#define USUFFIX l
#define DATA_TYPE uint32_t
#elif DATA_SIZE == 2
#define SUFFIX w
#define USUFFIX uw
#define DATA_TYPE uint16_t
#define DATA_STYPE int16_t
#elif DATA_SIZE == 1
#define SUFFIX b
#define USUFFIX ub
#define DATA_TYPE uint8_t
#define DATA_STYPE int8_t
#else
#error unsupported data size
#endif

#if ACCESS_TYPE < (NB_MMU_MODES)

#define CPU_MMU_INDEX ACCESS_TYPE
#define MMUSUFFIX _mmu

#elif ACCESS_TYPE == (NB_MMU_MODES)

#define CPU_MMU_INDEX (cpu_mmu_index(env))
#define MMUSUFFIX _mmu

#elif ACCESS_TYPE == (NB_MMU_MODES + 1)

#define CPU_MMU_INDEX (cpu_mmu_index(env))
#define MMUSUFFIX _cmmu

#else
#error invalid ACCESS_TYPE
#endif

#if DATA_SIZE == 8
#define RES_TYPE uint64_t
#else
#define RES_TYPE uint32_t
#endif

#if ACCESS_TYPE == (NB_MMU_MODES + 1)
#define ADDR_READ addr_code
#else
#define ADDR_READ addr_read
#endif

#ifndef CONFIG_TCG_PASS_AREG0
#define ENV_PARAM
#define ENV_VAR
#define CPU_PREFIX
#define HELPER_PREFIX __
#else
#define ENV_PARAM CPUArchState *env,
#define ENV_VAR env,
#define CPU_PREFIX cpu_
#define HELPER_PREFIX helper_
#endif

/* generic load/store macros */

static inline RES_TYPE
glue(glue(glue(CPU_PREFIX, ld), USUFFIX), MEMSUFFIX)(ENV_PARAM
                                                     target_ulong ptr)
{
    int page_index;
    RES_TYPE res;
    target_ulong addr;
    int mmu_idx;

    addr = ptr;
    page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
    mmu_idx = CPU_MMU_INDEX;
    if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
                 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
        res = glue(glue(glue(HELPER_PREFIX, ld), SUFFIX), MMUSUFFIX)(ENV_VAR
                                                                     addr,
                                                                     mmu_idx);
    } else {
        uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
        res = glue(glue(ld, USUFFIX), _raw)(hostaddr);
    }
    return res;
}

#if DATA_SIZE <= 2
static inline int
glue(glue(glue(CPU_PREFIX, lds), SUFFIX), MEMSUFFIX)(ENV_PARAM
                                                     target_ulong ptr)
{
    int res, page_index;
    target_ulong addr;
    int mmu_idx;

    addr = ptr;
    page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
    mmu_idx = CPU_MMU_INDEX;
    if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
                 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
        res = (DATA_STYPE)glue(glue(glue(HELPER_PREFIX, ld), SUFFIX),
                               MMUSUFFIX)(ENV_VAR addr, mmu_idx);
    } else {
        uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
        res = glue(glue(lds, SUFFIX), _raw)(hostaddr);
    }
    return res;
}
#endif

#if ACCESS_TYPE != (NB_MMU_MODES + 1)

/* generic store macro */

static inline void
glue(glue(glue(CPU_PREFIX, st), SUFFIX), MEMSUFFIX)(ENV_PARAM target_ulong ptr,
                                                    RES_TYPE v)
{
    int page_index;
    target_ulong addr;
    int mmu_idx;

    addr = ptr;
    page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
    mmu_idx = CPU_MMU_INDEX;
    if (unlikely(env->tlb_table[mmu_idx][page_index].addr_write !=
                 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
        glue(glue(glue(HELPER_PREFIX, st), SUFFIX), MMUSUFFIX)(ENV_VAR addr, v,
                                                               mmu_idx);
    } else {
        uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
        glue(glue(st, SUFFIX), _raw)(hostaddr, v);
    }
}

#endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */

#if ACCESS_TYPE != (NB_MMU_MODES + 1)

#if DATA_SIZE == 8
static inline float64 glue(glue(CPU_PREFIX, ldfq), MEMSUFFIX)(ENV_PARAM
                                                              target_ulong ptr)
{
    union {
        float64 d;
        uint64_t i;
    } u;
    u.i = glue(glue(CPU_PREFIX, ldq), MEMSUFFIX)(ENV_VAR ptr);
    return u.d;
}

static inline void glue(glue(CPU_PREFIX, stfq), MEMSUFFIX)(ENV_PARAM
                                                           target_ulong ptr,
                                                           float64 v)
{
    union {
        float64 d;
        uint64_t i;
    } u;
    u.d = v;
    glue(glue(CPU_PREFIX, stq), MEMSUFFIX)(ENV_VAR ptr, u.i);
}
#endif /* DATA_SIZE == 8 */

#if DATA_SIZE == 4
static inline float32 glue(glue(CPU_PREFIX, ldfl), MEMSUFFIX)(ENV_PARAM
                                                              target_ulong ptr)
{
    union {
        float32 f;
        uint32_t i;
    } u;
    u.i = glue(glue(CPU_PREFIX, ldl), MEMSUFFIX)(ENV_VAR ptr);
    return u.f;
}

static inline void glue(glue(CPU_PREFIX, stfl), MEMSUFFIX)(ENV_PARAM
                                                           target_ulong ptr,
                                                           float32 v)
{
    union {
        float32 f;
        uint32_t i;
    } u;
    u.f = v;
    glue(glue(CPU_PREFIX, stl), MEMSUFFIX)(ENV_VAR ptr, u.i);
}
#endif /* DATA_SIZE == 4 */

#endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */

#undef RES_TYPE
#undef DATA_TYPE
#undef DATA_STYPE
#undef SUFFIX
#undef USUFFIX
#undef DATA_SIZE
#undef CPU_MMU_INDEX
#undef MMUSUFFIX
#undef ADDR_READ
#undef ENV_PARAM
#undef ENV_VAR
#undef CPU_PREFIX
#undef HELPER_PREFIX