| 1 | /*
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| 2 | * Copyright (c) 2005 Martin Decky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #ifndef KERN_mips64_CONTEXT_OFFSET_H_
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| 30 | #define KERN_mips64_CONTEXT_OFFSET_H_
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| 31 |
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| 32 | #define OFFSET_SP 0x00
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| 33 | #define OFFSET_PC 0x08
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| 34 | #define OFFSET_S0 0x10
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| 35 | #define OFFSET_S1 0x18
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| 36 | #define OFFSET_S2 0x20
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| 37 | #define OFFSET_S3 0x28
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| 38 | #define OFFSET_S4 0x30
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| 39 | #define OFFSET_S5 0x38
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| 40 | #define OFFSET_S6 0x40
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| 41 | #define OFFSET_S7 0x48
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| 42 | #define OFFSET_S8 0x50
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| 43 | #define OFFSET_GP 0x58
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| 44 |
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| 45 | #ifdef KERNEL
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| 46 | #define OFFSET_IPL 0x60
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| 47 | #else
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| 48 | #define OFFSET_TLS 0x60
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| 49 |
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| 50 | #define OFFSET_F20 0x68
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| 51 | #define OFFSET_F21 0x70
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| 52 | #define OFFSET_F22 0x78
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| 53 | #define OFFSET_F23 0x80
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| 54 | #define OFFSET_F24 0x88
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| 55 | #define OFFSET_F25 0x90
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| 56 | #define OFFSET_F26 0x98
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| 57 | #define OFFSET_F27 0xa0
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| 58 | #define OFFSET_F28 0xa8
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| 59 | #define OFFSET_F29 0xb0
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| 60 | #define OFFSET_F30 0xb8
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| 61 | #endif /* KERNEL */
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| 62 |
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| 63 | #ifdef __ASM__
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| 64 |
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| 65 | #include <arch/asm/regname.h>
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| 66 |
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| 67 | # ctx: address of the structure with saved context
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| 68 | .macro CONTEXT_SAVE_ARCH_CORE ctx:req
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| 69 | sd $s0, OFFSET_S0(\ctx)
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| 70 | sd $s1, OFFSET_S1(\ctx)
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| 71 | sd $s2, OFFSET_S2(\ctx)
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| 72 | sd $s3, OFFSET_S3(\ctx)
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| 73 | sd $s4, OFFSET_S4(\ctx)
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| 74 | sd $s5, OFFSET_S5(\ctx)
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| 75 | sd $s6, OFFSET_S6(\ctx)
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| 76 | sd $s7, OFFSET_S7(\ctx)
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| 77 | sd $s8, OFFSET_S8(\ctx)
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| 78 | sd $gp, OFFSET_GP(\ctx)
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| 79 |
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| 80 | #ifndef KERNEL
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| 81 | sd $k1, OFFSET_TLS(\ctx)
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| 82 |
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| 83 | #ifdef CONFIG_FPU
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| 84 | dmfc1 $t0, $20
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| 85 | sd $t0, OFFSET_F20(\ctx)
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| 86 |
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| 87 | dmfc1 $t0,$21
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| 88 | sd $t0, OFFSET_F21(\ctx)
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| 89 |
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| 90 | dmfc1 $t0,$22
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| 91 | sd $t0, OFFSET_F22(\ctx)
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| 92 |
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| 93 | dmfc1 $t0,$23
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| 94 | sd $t0, OFFSET_F23(\ctx)
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| 95 |
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| 96 | dmfc1 $t0,$24
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| 97 | sd $t0, OFFSET_F24(\ctx)
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| 98 |
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| 99 | dmfc1 $t0,$25
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| 100 | sd $t0, OFFSET_F25(\ctx)
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| 101 |
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| 102 | dmfc1 $t0,$26
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| 103 | sd $t0, OFFSET_F26(\ctx)
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| 104 |
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| 105 | dmfc1 $t0,$27
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| 106 | sd $t0, OFFSET_F27(\ctx)
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| 107 |
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| 108 | dmfc1 $t0,$28
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| 109 | sd $t0, OFFSET_F28(\ctx)
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| 110 |
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| 111 | dmfc1 $t0,$29
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| 112 | sd $t0, OFFSET_F29(\ctx)
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| 113 |
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| 114 | dmfc1 $t0,$30
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| 115 | sd $t0, OFFSET_F30(\ctx)
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| 116 | #endif /* CONFIG_FPU */
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| 117 | #endif /* KERNEL */
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| 118 |
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| 119 | sd $ra, OFFSET_PC(\ctx)
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| 120 | sd $sp, OFFSET_SP(\ctx)
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| 121 | .endm
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| 122 |
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| 123 | # ctx: address of the structure with saved context
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| 124 | .macro CONTEXT_RESTORE_ARCH_CORE ctx:req
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| 125 | ld $s0, OFFSET_S0(\ctx)
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| 126 | ld $s1, OFFSET_S1(\ctx)
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| 127 | ld $s2, OFFSET_S2(\ctx)
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| 128 | ld $s3, OFFSET_S3(\ctx)
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| 129 | ld $s4, OFFSET_S4(\ctx)
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| 130 | ld $s5, OFFSET_S5(\ctx)
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| 131 | ld $s6, OFFSET_S6(\ctx)
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| 132 | ld $s7, OFFSET_S7(\ctx)
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| 133 | ld $s8, OFFSET_S8(\ctx)
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| 134 | ld $gp, OFFSET_GP(\ctx)
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| 135 |
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| 136 | #ifndef KERNEL
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| 137 | ld $k1, OFFSET_TLS(\ctx)
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| 138 |
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| 139 | #ifdef CONFIG_FPU
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| 140 | ld $t0, OFFSET_F20(\ctx)
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| 141 | dmtc1 $t0,$20
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| 142 |
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| 143 | ld $t0, OFFSET_F21(\ctx)
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| 144 | dmtc1 $t0,$21
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| 145 |
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| 146 | ld $t0, OFFSET_F22(\ctx)
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| 147 | dmtc1 $t0,$22
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| 148 |
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| 149 | ld $t0, OFFSET_F23(\ctx)
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| 150 | dmtc1 $t0,$23
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| 151 |
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| 152 | ld $t0, OFFSET_F24(\ctx)
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| 153 | dmtc1 $t0,$24
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| 154 |
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| 155 | ld $t0, OFFSET_F25(\ctx)
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| 156 | dmtc1 $t0,$25
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| 157 |
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| 158 | ld $t0, OFFSET_F26(\ctx)
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| 159 | dmtc1 $t0,$26
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| 160 |
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| 161 | ld $t0, OFFSET_F27(\ctx)
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| 162 | dmtc1 $t0,$27
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| 163 |
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| 164 | ld $t0, OFFSET_F28(\ctx)
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| 165 | dmtc1 $t0,$28
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| 166 |
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| 167 | ld $t0, OFFSET_F29(\ctx)
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| 168 | dmtc1 $t0,$29
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| 169 |
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| 170 | ld $t0, OFFSET_F30(\ctx)
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| 171 | dmtc1 $t0,$30
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| 172 | #endif /* CONFIG_FPU */
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| 173 | #endif /* KERNEL */
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| 174 |
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| 175 | ld $ra, OFFSET_PC(\ctx)
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| 176 | ld $sp, OFFSET_SP(\ctx)
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| 177 | .endm
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| 178 |
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| 179 | #endif /* __ASM__ */
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| 180 |
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| 181 | #endif
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