/*
* Copyright (c) 2005 Martin Decky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef KERN_mips32_CONTEXT_OFFSET_H_
#define KERN_mips32_CONTEXT_OFFSET_H_
#define OFFSET_SP 0x0
#define OFFSET_PC 0x4
#define OFFSET_S0 0x8
#define OFFSET_S1 0xc
#define OFFSET_S2 0x10
#define OFFSET_S3 0x14
#define OFFSET_S4 0x18
#define OFFSET_S5 0x1c
#define OFFSET_S6 0x20
#define OFFSET_S7 0x24
#define OFFSET_S8 0x28
#define OFFSET_GP 0x2c
#ifdef KERNEL
# define OFFSET_IPL 0x30
#else
# define OFFSET_TLS 0x30
# define OFFSET_F20 0x34
# define OFFSET_F21 0x38
# define OFFSET_F22 0x3c
# define OFFSET_F23 0x40
# define OFFSET_F24 0x44
# define OFFSET_F25 0x48
# define OFFSET_F26 0x4c
# define OFFSET_F27 0x50
# define OFFSET_F28 0x54
# define OFFSET_F29 0x58
# define OFFSET_F30 0x5c
#endif /* KERNEL */
/* istate_t */
#define EOFFSET_AT 0x0
#define EOFFSET_V0 0x4
#define EOFFSET_V1 0x8
#define EOFFSET_A0 0xc
#define EOFFSET_A1 0x10
#define EOFFSET_A2 0x14
#define EOFFSET_A3 0x18
#define EOFFSET_T0 0x1c
#define EOFFSET_T1 0x20
#define EOFFSET_T2 0x24
#define EOFFSET_T3 0x28
#define EOFFSET_T4 0x2c
#define EOFFSET_T5 0x30
#define EOFFSET_T6 0x34
#define EOFFSET_T7 0x38
#define EOFFSET_T8 0x3c
#define EOFFSET_T9 0x40
#define EOFFSET_GP 0x44
#define EOFFSET_SP 0x48
#define EOFFSET_RA 0x4c
#define EOFFSET_LO 0x50
#define EOFFSET_HI 0x54
#define EOFFSET_STATUS 0x58
#define EOFFSET_EPC 0x5c
#define EOFFSET_K1 0x60
#define REGISTER_SPACE 104 /* respect stack alignment */
#ifdef __ASM__
#include <arch/asm/regname.h>
# ctx: address of the structure with saved context
.macro CONTEXT_SAVE_ARCH_CORE ctx:req
sw $s0,OFFSET_S0(\ctx)
sw $s1,OFFSET_S1(\ctx)
sw $s2,OFFSET_S2(\ctx)
sw $s3,OFFSET_S3(\ctx)
sw $s4,OFFSET_S4(\ctx)
sw $s5,OFFSET_S5(\ctx)
sw $s6,OFFSET_S6(\ctx)
sw $s7,OFFSET_S7(\ctx)
sw $s8,OFFSET_S8(\ctx)
sw $gp,OFFSET_GP(\ctx)
#ifndef KERNEL
sw $k1,OFFSET_TLS(\ctx)
#ifdef CONFIG_FPU
mfc1 $t0,$20
sw $t0, OFFSET_F20(\ctx)
mfc1 $t0,$21
sw $t0, OFFSET_F21(\ctx)
mfc1 $t0,$22
sw $t0, OFFSET_F22(\ctx)
mfc1 $t0,$23
sw $t0, OFFSET_F23(\ctx)
mfc1 $t0,$24
sw $t0, OFFSET_F24(\ctx)
mfc1 $t0,$25
sw $t0, OFFSET_F25(\ctx)
mfc1 $t0,$26
sw $t0, OFFSET_F26(\ctx)
mfc1 $t0,$27
sw $t0, OFFSET_F27(\ctx)
mfc1 $t0,$28
sw $t0, OFFSET_F28(\ctx)
mfc1 $t0,$29
sw $t0, OFFSET_F29(\ctx)
mfc1 $t0,$30
sw $t0, OFFSET_F30(\ctx)
#endif /* CONFIG_FPU */
#endif /* KERNEL */
sw $ra,OFFSET_PC(\ctx)
sw $sp,OFFSET_SP(\ctx)
.endm
# ctx: address of the structure with saved context
.macro CONTEXT_RESTORE_ARCH_CORE ctx:req
lw $s0,OFFSET_S0(\ctx)
lw $s1,OFFSET_S1(\ctx)
lw $s2,OFFSET_S2(\ctx)
lw $s3,OFFSET_S3(\ctx)
lw $s4,OFFSET_S4(\ctx)
lw $s5,OFFSET_S5(\ctx)
lw $s6,OFFSET_S6(\ctx)
lw $s7,OFFSET_S7(\ctx)
lw $s8,OFFSET_S8(\ctx)
lw $gp,OFFSET_GP(\ctx)
#ifndef KERNEL
lw $k1,OFFSET_TLS(\ctx)
#ifdef CONFIG_FPU
lw $t0, OFFSET_F20(\ctx)
mtc1 $t0,$20
lw $t0, OFFSET_F21(\ctx)
mtc1 $t0,$21
lw $t0, OFFSET_F22(\ctx)
mtc1 $t0,$22
lw $t0, OFFSET_F23(\ctx)
mtc1 $t0,$23
lw $t0, OFFSET_F24(\ctx)
mtc1 $t0,$24
lw $t0, OFFSET_F25(\ctx)
mtc1 $t0,$25
lw $t0, OFFSET_F26(\ctx)
mtc1 $t0,$26
lw $t0, OFFSET_F27(\ctx)
mtc1 $t0,$27
lw $t0, OFFSET_F28(\ctx)
mtc1 $t0,$28
lw $t0, OFFSET_F29(\ctx)
mtc1 $t0,$29
lw $t0, OFFSET_F30(\ctx)
mtc1 $t0,$30
#endif /* CONFIG_FPU */
#endif /* KERNEL */
lw $ra,OFFSET_PC(\ctx)
lw $sp,OFFSET_SP(\ctx)
.endm
#endif
#endif