Merge branch 's390-for-upstream' of git://repo.or.cz/qemu/agraf
[qemu.git] / softmmu_header.h
blobcf1aa38fc7b084bbeb65f46b81435148fe273b27
1 /*
2 * Software MMU support
4 * Generate inline load/store functions for one MMU mode and data
5 * size.
7 * Generate a store function as well as signed and unsigned loads. For
8 * 32 and 64 bit cases, also generate floating point functions with
9 * the same size.
11 * Not used directly but included from softmmu_exec.h and exec-all.h.
13 * Copyright (c) 2003 Fabrice Bellard
15 * This library is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU Lesser General Public
17 * License as published by the Free Software Foundation; either
18 * version 2 of the License, or (at your option) any later version.
20 * This library is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 * Lesser General Public License for more details.
25 * You should have received a copy of the GNU Lesser General Public
26 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
28 #if DATA_SIZE == 8
29 #define SUFFIX q
30 #define USUFFIX q
31 #define DATA_TYPE uint64_t
32 #elif DATA_SIZE == 4
33 #define SUFFIX l
34 #define USUFFIX l
35 #define DATA_TYPE uint32_t
36 #elif DATA_SIZE == 2
37 #define SUFFIX w
38 #define USUFFIX uw
39 #define DATA_TYPE uint16_t
40 #define DATA_STYPE int16_t
41 #elif DATA_SIZE == 1
42 #define SUFFIX b
43 #define USUFFIX ub
44 #define DATA_TYPE uint8_t
45 #define DATA_STYPE int8_t
46 #else
47 #error unsupported data size
48 #endif
50 #if ACCESS_TYPE < (NB_MMU_MODES)
52 #define CPU_MMU_INDEX ACCESS_TYPE
53 #define MMUSUFFIX _mmu
55 #elif ACCESS_TYPE == (NB_MMU_MODES)
57 #define CPU_MMU_INDEX (cpu_mmu_index(env))
58 #define MMUSUFFIX _mmu
60 #elif ACCESS_TYPE == (NB_MMU_MODES + 1)
62 #define CPU_MMU_INDEX (cpu_mmu_index(env))
63 #define MMUSUFFIX _cmmu
65 #else
66 #error invalid ACCESS_TYPE
67 #endif
69 #if DATA_SIZE == 8
70 #define RES_TYPE uint64_t
71 #else
72 #define RES_TYPE uint32_t
73 #endif
75 #if ACCESS_TYPE == (NB_MMU_MODES + 1)
76 #define ADDR_READ addr_code
77 #else
78 #define ADDR_READ addr_read
79 #endif
81 #ifndef CONFIG_TCG_PASS_AREG0
82 #define ENV_PARAM
83 #define ENV_VAR
84 #define CPU_PREFIX
85 #define HELPER_PREFIX __
86 #else
87 #define ENV_PARAM CPUArchState *env,
88 #define ENV_VAR env,
89 #define CPU_PREFIX cpu_
90 #define HELPER_PREFIX helper_
91 #endif
93 /* generic load/store macros */
95 static inline RES_TYPE
96 glue(glue(glue(CPU_PREFIX, ld), USUFFIX), MEMSUFFIX)(ENV_PARAM
97 target_ulong ptr)
99 int page_index;
100 RES_TYPE res;
101 target_ulong addr;
102 int mmu_idx;
104 addr = ptr;
105 page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
106 mmu_idx = CPU_MMU_INDEX;
107 if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
108 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
109 res = glue(glue(glue(HELPER_PREFIX, ld), SUFFIX), MMUSUFFIX)(ENV_VAR
110 addr,
111 mmu_idx);
112 } else {
113 uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
114 res = glue(glue(ld, USUFFIX), _raw)(hostaddr);
116 return res;
119 #if DATA_SIZE <= 2
120 static inline int
121 glue(glue(glue(CPU_PREFIX, lds), SUFFIX), MEMSUFFIX)(ENV_PARAM
122 target_ulong ptr)
124 int res, page_index;
125 target_ulong addr;
126 int mmu_idx;
128 addr = ptr;
129 page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
130 mmu_idx = CPU_MMU_INDEX;
131 if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
132 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
133 res = (DATA_STYPE)glue(glue(glue(HELPER_PREFIX, ld), SUFFIX),
134 MMUSUFFIX)(ENV_VAR addr, mmu_idx);
135 } else {
136 uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
137 res = glue(glue(lds, SUFFIX), _raw)(hostaddr);
139 return res;
141 #endif
143 #if ACCESS_TYPE != (NB_MMU_MODES + 1)
145 /* generic store macro */
147 static inline void
148 glue(glue(glue(CPU_PREFIX, st), SUFFIX), MEMSUFFIX)(ENV_PARAM target_ulong ptr,
149 RES_TYPE v)
151 int page_index;
152 target_ulong addr;
153 int mmu_idx;
155 addr = ptr;
156 page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
157 mmu_idx = CPU_MMU_INDEX;
158 if (unlikely(env->tlb_table[mmu_idx][page_index].addr_write !=
159 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
160 glue(glue(glue(HELPER_PREFIX, st), SUFFIX), MMUSUFFIX)(ENV_VAR addr, v,
161 mmu_idx);
162 } else {
163 uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
164 glue(glue(st, SUFFIX), _raw)(hostaddr, v);
168 #endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */
170 #if ACCESS_TYPE != (NB_MMU_MODES + 1)
172 #if DATA_SIZE == 8
173 static inline float64 glue(glue(CPU_PREFIX, ldfq), MEMSUFFIX)(ENV_PARAM
174 target_ulong ptr)
176 union {
177 float64 d;
178 uint64_t i;
179 } u;
180 u.i = glue(glue(CPU_PREFIX, ldq), MEMSUFFIX)(ENV_VAR ptr);
181 return u.d;
184 static inline void glue(glue(CPU_PREFIX, stfq), MEMSUFFIX)(ENV_PARAM
185 target_ulong ptr,
186 float64 v)
188 union {
189 float64 d;
190 uint64_t i;
191 } u;
192 u.d = v;
193 glue(glue(CPU_PREFIX, stq), MEMSUFFIX)(ENV_VAR ptr, u.i);
195 #endif /* DATA_SIZE == 8 */
197 #if DATA_SIZE == 4
198 static inline float32 glue(glue(CPU_PREFIX, ldfl), MEMSUFFIX)(ENV_PARAM
199 target_ulong ptr)
201 union {
202 float32 f;
203 uint32_t i;
204 } u;
205 u.i = glue(glue(CPU_PREFIX, ldl), MEMSUFFIX)(ENV_VAR ptr);
206 return u.f;
209 static inline void glue(glue(CPU_PREFIX, stfl), MEMSUFFIX)(ENV_PARAM
210 target_ulong ptr,
211 float32 v)
213 union {
214 float32 f;
215 uint32_t i;
216 } u;
217 u.f = v;
218 glue(glue(CPU_PREFIX, stl), MEMSUFFIX)(ENV_VAR ptr, u.i);
220 #endif /* DATA_SIZE == 4 */
222 #endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */
224 #undef RES_TYPE
225 #undef DATA_TYPE
226 #undef DATA_STYPE
227 #undef SUFFIX
228 #undef USUFFIX
229 #undef DATA_SIZE
230 #undef CPU_MMU_INDEX
231 #undef MMUSUFFIX
232 #undef ADDR_READ
233 #undef ENV_PARAM
234 #undef ENV_VAR
235 #undef CPU_PREFIX
236 #undef HELPER_PREFIX