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/*

 * 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