bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Tiny Code Generator for QEMU |
| 3 | * |
| 4 | * Copyright (c) 2008 Fabrice Bellard |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
Peter Maydell | d38ea87 | 2016-01-29 17:50:05 +0000 | [diff] [blame] | 24 | #include "qemu/osdep.h" |
Richard Henderson | 696a8be | 2013-02-19 23:51:55 -0800 | [diff] [blame] | 25 | #include "qemu/host-utils.h" |
Richard Henderson | c482cb1 | 2016-06-28 11:37:27 -0700 | [diff] [blame] | 26 | #include "cpu.h" |
| 27 | #include "exec/helper-proto.h" |
| 28 | #include "exec/cpu_ldst.h" |
| 29 | #include "exec/exec-all.h" |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 30 | |
Aurelien Jarno | 31d6655 | 2010-03-02 23:16:36 +0100 | [diff] [blame] | 31 | /* 32-bit helpers */ |
| 32 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 33 | int32_t HELPER(div_i32)(int32_t arg1, int32_t arg2) |
Aurelien Jarno | 31d6655 | 2010-03-02 23:16:36 +0100 | [diff] [blame] | 34 | { |
| 35 | return arg1 / arg2; |
| 36 | } |
| 37 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 38 | int32_t HELPER(rem_i32)(int32_t arg1, int32_t arg2) |
Aurelien Jarno | 31d6655 | 2010-03-02 23:16:36 +0100 | [diff] [blame] | 39 | { |
| 40 | return arg1 % arg2; |
| 41 | } |
| 42 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 43 | uint32_t HELPER(divu_i32)(uint32_t arg1, uint32_t arg2) |
Aurelien Jarno | 31d6655 | 2010-03-02 23:16:36 +0100 | [diff] [blame] | 44 | { |
| 45 | return arg1 / arg2; |
| 46 | } |
| 47 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 48 | uint32_t HELPER(remu_i32)(uint32_t arg1, uint32_t arg2) |
Aurelien Jarno | 31d6655 | 2010-03-02 23:16:36 +0100 | [diff] [blame] | 49 | { |
| 50 | return arg1 % arg2; |
| 51 | } |
| 52 | |
| 53 | /* 64-bit helpers */ |
| 54 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 55 | uint64_t HELPER(shl_i64)(uint64_t arg1, uint64_t arg2) |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 56 | { |
| 57 | return arg1 << arg2; |
| 58 | } |
| 59 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 60 | uint64_t HELPER(shr_i64)(uint64_t arg1, uint64_t arg2) |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 61 | { |
| 62 | return arg1 >> arg2; |
| 63 | } |
| 64 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 65 | int64_t HELPER(sar_i64)(int64_t arg1, int64_t arg2) |
| 66 | { |
| 67 | return arg1 >> arg2; |
| 68 | } |
| 69 | |
| 70 | int64_t HELPER(div_i64)(int64_t arg1, int64_t arg2) |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 71 | { |
| 72 | return arg1 / arg2; |
| 73 | } |
| 74 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 75 | int64_t HELPER(rem_i64)(int64_t arg1, int64_t arg2) |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 76 | { |
balrog | c7b76a0a | 2008-05-06 14:40:28 +0000 | [diff] [blame] | 77 | return arg1 % arg2; |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 78 | } |
| 79 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 80 | uint64_t HELPER(divu_i64)(uint64_t arg1, uint64_t arg2) |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 81 | { |
| 82 | return arg1 / arg2; |
| 83 | } |
| 84 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 85 | uint64_t HELPER(remu_i64)(uint64_t arg1, uint64_t arg2) |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 86 | { |
balrog | c7b76a0a | 2008-05-06 14:40:28 +0000 | [diff] [blame] | 87 | return arg1 % arg2; |
bellard | c896fe2 | 2008-02-01 10:05:41 +0000 | [diff] [blame] | 88 | } |
Richard Henderson | 696a8be | 2013-02-19 23:51:55 -0800 | [diff] [blame] | 89 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 90 | uint64_t HELPER(muluh_i64)(uint64_t arg1, uint64_t arg2) |
Richard Henderson | 696a8be | 2013-02-19 23:51:55 -0800 | [diff] [blame] | 91 | { |
| 92 | uint64_t l, h; |
| 93 | mulu64(&l, &h, arg1, arg2); |
| 94 | return h; |
| 95 | } |
| 96 | |
Richard Henderson | 944eea9 | 2014-04-07 23:08:47 -0700 | [diff] [blame] | 97 | int64_t HELPER(mulsh_i64)(int64_t arg1, int64_t arg2) |
Richard Henderson | 696a8be | 2013-02-19 23:51:55 -0800 | [diff] [blame] | 98 | { |
| 99 | uint64_t l, h; |
| 100 | muls64(&l, &h, arg1, arg2); |
| 101 | return h; |
| 102 | } |
Richard Henderson | c482cb1 | 2016-06-28 11:37:27 -0700 | [diff] [blame] | 103 | |
Richard Henderson | df79b99 | 2016-09-02 12:23:57 -0700 | [diff] [blame] | 104 | void HELPER(exit_atomic)(CPUArchState *env) |
| 105 | { |
| 106 | cpu_loop_exit_atomic(ENV_GET_CPU(env), GETPC()); |
| 107 | } |
| 108 | |
Richard Henderson | c482cb1 | 2016-06-28 11:37:27 -0700 | [diff] [blame] | 109 | #ifndef CONFIG_SOFTMMU |
| 110 | /* The softmmu versions of these helpers are in cputlb.c. */ |
| 111 | |
| 112 | /* Do not allow unaligned operations to proceed. Return the host address. */ |
| 113 | static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, |
| 114 | int size, uintptr_t retaddr) |
| 115 | { |
| 116 | /* Enforce qemu required alignment. */ |
| 117 | if (unlikely(addr & (size - 1))) { |
| 118 | cpu_loop_exit_atomic(ENV_GET_CPU(env), retaddr); |
| 119 | } |
| 120 | return g2h(addr); |
| 121 | } |
| 122 | |
| 123 | /* Macro to call the above, with local variables from the use context. */ |
| 124 | #define ATOMIC_MMU_LOOKUP atomic_mmu_lookup(env, addr, DATA_SIZE, GETPC()) |
| 125 | |
| 126 | #define ATOMIC_NAME(X) HELPER(glue(glue(atomic_ ## X, SUFFIX), END)) |
| 127 | #define EXTRA_ARGS |
| 128 | |
| 129 | #define DATA_SIZE 1 |
| 130 | #include "atomic_template.h" |
| 131 | |
| 132 | #define DATA_SIZE 2 |
| 133 | #include "atomic_template.h" |
| 134 | |
| 135 | #define DATA_SIZE 4 |
| 136 | #include "atomic_template.h" |
| 137 | |
Richard Henderson | df79b99 | 2016-09-02 12:23:57 -0700 | [diff] [blame] | 138 | #ifdef CONFIG_ATOMIC64 |
Richard Henderson | c482cb1 | 2016-06-28 11:37:27 -0700 | [diff] [blame] | 139 | #define DATA_SIZE 8 |
| 140 | #include "atomic_template.h" |
Richard Henderson | df79b99 | 2016-09-02 12:23:57 -0700 | [diff] [blame] | 141 | #endif |
Richard Henderson | c482cb1 | 2016-06-28 11:37:27 -0700 | [diff] [blame] | 142 | |
Richard Henderson | 7ebee43 | 2016-06-29 21:10:59 -0700 | [diff] [blame] | 143 | /* The following is only callable from other helpers, and matches up |
| 144 | with the softmmu version. */ |
| 145 | |
| 146 | #ifdef CONFIG_ATOMIC128 |
| 147 | |
| 148 | #undef EXTRA_ARGS |
| 149 | #undef ATOMIC_NAME |
| 150 | #undef ATOMIC_MMU_LOOKUP |
| 151 | |
| 152 | #define EXTRA_ARGS , TCGMemOpIdx oi, uintptr_t retaddr |
| 153 | #define ATOMIC_NAME(X) \ |
| 154 | HELPER(glue(glue(glue(atomic_ ## X, SUFFIX), END), _mmu)) |
| 155 | #define ATOMIC_MMU_LOOKUP atomic_mmu_lookup(env, addr, DATA_SIZE, retaddr) |
| 156 | |
| 157 | #define DATA_SIZE 16 |
| 158 | #include "atomic_template.h" |
| 159 | #endif /* CONFIG_ATOMIC128 */ |
| 160 | |
Richard Henderson | c482cb1 | 2016-06-28 11:37:27 -0700 | [diff] [blame] | 161 | #endif /* !CONFIG_SOFTMMU */ |