Merge remote-tracking branch 'stefanha/trivial-patches' into staging
[qemu.git] / softmmu_header.h
blob2f95c334094cf49f8ee0937ba35e481ccbc79029
1 /*
2 * Software MMU support
4 * Copyright (c) 2003 Fabrice Bellard
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.
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.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19 #if DATA_SIZE == 8
20 #define SUFFIX q
21 #define USUFFIX q
22 #define DATA_TYPE uint64_t
23 #elif DATA_SIZE == 4
24 #define SUFFIX l
25 #define USUFFIX l
26 #define DATA_TYPE uint32_t
27 #elif DATA_SIZE == 2
28 #define SUFFIX w
29 #define USUFFIX uw
30 #define DATA_TYPE uint16_t
31 #define DATA_STYPE int16_t
32 #elif DATA_SIZE == 1
33 #define SUFFIX b
34 #define USUFFIX ub
35 #define DATA_TYPE uint8_t
36 #define DATA_STYPE int8_t
37 #else
38 #error unsupported data size
39 #endif
41 #if ACCESS_TYPE < (NB_MMU_MODES)
43 #define CPU_MMU_INDEX ACCESS_TYPE
44 #define MMUSUFFIX _mmu
46 #elif ACCESS_TYPE == (NB_MMU_MODES)
48 #define CPU_MMU_INDEX (cpu_mmu_index(env))
49 #define MMUSUFFIX _mmu
51 #elif ACCESS_TYPE == (NB_MMU_MODES + 1)
53 #define CPU_MMU_INDEX (cpu_mmu_index(env))
54 #define MMUSUFFIX _cmmu
56 #else
57 #error invalid ACCESS_TYPE
58 #endif
60 #if DATA_SIZE == 8
61 #define RES_TYPE uint64_t
62 #else
63 #define RES_TYPE uint32_t
64 #endif
66 #if ACCESS_TYPE == (NB_MMU_MODES + 1)
67 #define ADDR_READ addr_code
68 #else
69 #define ADDR_READ addr_read
70 #endif
72 /* generic load/store macros */
74 static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(target_ulong ptr)
76 int page_index;
77 RES_TYPE res;
78 target_ulong addr;
79 unsigned long physaddr;
80 int mmu_idx;
82 addr = ptr;
83 page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
84 mmu_idx = CPU_MMU_INDEX;
85 if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
86 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
87 res = glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, mmu_idx);
88 } else {
89 physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
90 res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)physaddr);
92 return res;
95 #if DATA_SIZE <= 2
96 static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(target_ulong ptr)
98 int res, page_index;
99 target_ulong addr;
100 unsigned long physaddr;
101 int mmu_idx;
103 addr = ptr;
104 page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
105 mmu_idx = CPU_MMU_INDEX;
106 if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ !=
107 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
108 res = (DATA_STYPE)glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, mmu_idx);
109 } else {
110 physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
111 res = glue(glue(lds, SUFFIX), _raw)((uint8_t *)physaddr);
113 return res;
115 #endif
117 #if ACCESS_TYPE != (NB_MMU_MODES + 1)
119 /* generic store macro */
121 static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(target_ulong ptr, RES_TYPE v)
123 int page_index;
124 target_ulong addr;
125 unsigned long physaddr;
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_write !=
132 (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) {
133 glue(glue(__st, SUFFIX), MMUSUFFIX)(addr, v, mmu_idx);
134 } else {
135 physaddr = addr + env->tlb_table[mmu_idx][page_index].addend;
136 glue(glue(st, SUFFIX), _raw)((uint8_t *)physaddr, v);
140 #endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */
142 #if ACCESS_TYPE != (NB_MMU_MODES + 1)
144 #if DATA_SIZE == 8
145 static inline float64 glue(ldfq, MEMSUFFIX)(target_ulong ptr)
147 union {
148 float64 d;
149 uint64_t i;
150 } u;
151 u.i = glue(ldq, MEMSUFFIX)(ptr);
152 return u.d;
155 static inline void glue(stfq, MEMSUFFIX)(target_ulong ptr, float64 v)
157 union {
158 float64 d;
159 uint64_t i;
160 } u;
161 u.d = v;
162 glue(stq, MEMSUFFIX)(ptr, u.i);
164 #endif /* DATA_SIZE == 8 */
166 #if DATA_SIZE == 4
167 static inline float32 glue(ldfl, MEMSUFFIX)(target_ulong ptr)
169 union {
170 float32 f;
171 uint32_t i;
172 } u;
173 u.i = glue(ldl, MEMSUFFIX)(ptr);
174 return u.f;
177 static inline void glue(stfl, MEMSUFFIX)(target_ulong ptr, float32 v)
179 union {
180 float32 f;
181 uint32_t i;
182 } u;
183 u.f = v;
184 glue(stl, MEMSUFFIX)(ptr, u.i);
186 #endif /* DATA_SIZE == 4 */
188 #endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */
190 #undef RES_TYPE
191 #undef DATA_TYPE
192 #undef DATA_STYPE
193 #undef SUFFIX
194 #undef USUFFIX
195 #undef DATA_SIZE
196 #undef CPU_MMU_INDEX
197 #undef MMUSUFFIX
198 #undef ADDR_READ