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Diffstat (limited to 'include/exec/cpu_ldst_template.h')
| -rw-r--r-- | include/exec/cpu_ldst_template.h | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/include/exec/cpu_ldst_template.h b/include/exec/cpu_ldst_template.h new file mode 100644 index 0000000000..006093ac49 --- /dev/null +++ b/include/exec/cpu_ldst_template.h @@ -0,0 +1,193 @@ +/* + * 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 cpu_ldst.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 DATA_SIZE == 8 +#define RES_TYPE uint64_t +#else +#define RES_TYPE uint32_t +#endif + +#ifdef SOFTMMU_CODE_ACCESS +#define ADDR_READ addr_code +#define MMUSUFFIX _cmmu +#else +#define ADDR_READ addr_read +#define MMUSUFFIX _mmu +#endif + +/* generic load/store macros */ + +static inline RES_TYPE +glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, 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(helper_ld, SUFFIX), MMUSUFFIX)(env, 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(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, 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(helper_ld, SUFFIX), + MMUSUFFIX)(env, 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 + +#ifndef SOFTMMU_CODE_ACCESS + +/* generic store macro */ + +static inline void +glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, 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(helper_st, SUFFIX), MMUSUFFIX)(env, addr, v, mmu_idx); + } else { + uintptr_t hostaddr = addr + env->tlb_table[mmu_idx][page_index].addend; + glue(glue(st, SUFFIX), _raw)(hostaddr, v); + } +} + + + +#if DATA_SIZE == 8 +static inline float64 glue(cpu_ldfq, MEMSUFFIX)(CPUArchState *env, + target_ulong ptr) +{ + union { + float64 d; + uint64_t i; + } u; + u.i = glue(cpu_ldq, MEMSUFFIX)(env, ptr); + return u.d; +} + +static inline void glue(cpu_stfq, MEMSUFFIX)(CPUArchState *env, + target_ulong ptr, float64 v) +{ + union { + float64 d; + uint64_t i; + } u; + u.d = v; + glue(cpu_stq, MEMSUFFIX)(env, ptr, u.i); +} +#endif /* DATA_SIZE == 8 */ + +#if DATA_SIZE == 4 +static inline float32 glue(cpu_ldfl, MEMSUFFIX)(CPUArchState *env, + target_ulong ptr) +{ + union { + float32 f; + uint32_t i; + } u; + u.i = glue(cpu_ldl, MEMSUFFIX)(env, ptr); + return u.f; +} + +static inline void glue(cpu_stfl, MEMSUFFIX)(CPUArchState *env, + target_ulong ptr, float32 v) +{ + union { + float32 f; + uint32_t i; + } u; + u.f = v; + glue(cpu_stl, MEMSUFFIX)(env, ptr, u.i); +} +#endif /* DATA_SIZE == 4 */ + +#endif /* !SOFTMMU_CODE_ACCESS */ + +#undef RES_TYPE +#undef DATA_TYPE +#undef DATA_STYPE +#undef SUFFIX +#undef USUFFIX +#undef DATA_SIZE +#undef MMUSUFFIX +#undef ADDR_READ |