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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_ppc32_CONTEXT_OFFSET_H_

#define KERN_ppc32_CONTEXT_OFFSET_H_

#define OFFSET_SP    0x0

#define OFFSET_PC    0x4

#define OFFSET_R2    0x8

#define OFFSET_R13   0xc

#define OFFSET_R14   0x10

#define OFFSET_R15   0x14

#define OFFSET_R16   0x18

#define OFFSET_R17   0x1c

#define OFFSET_R18   0x20

#define OFFSET_R19   0x24

#define OFFSET_R20   0x28

#define OFFSET_R21   0x2c

#define OFFSET_R22   0x30

#define OFFSET_R23   0x34

#define OFFSET_R24   0x38

#define OFFSET_R25   0x3c

#define OFFSET_R26   0x40

#define OFFSET_R27   0x44

#define OFFSET_R28   0x48

#define OFFSET_R29   0x4c

#define OFFSET_R30   0x50

#define OFFSET_R31   0x54

#define OFFSET_CR    0x58

#define OFFSET_FR14  0x0

#define OFFSET_FR15  0x8

#define OFFSET_FR16  0x10

#define OFFSET_FR17  0x18

#define OFFSET_FR18  0x20

#define OFFSET_FR19  0x28

#define OFFSET_FR20  0x30

#define OFFSET_FR21  0x38

#define OFFSET_FR22  0x40

#define OFFSET_FR23  0x48

#define OFFSET_FR24  0x50

#define OFFSET_FR25  0x58

#define OFFSET_FR26  0x60

#define OFFSET_FR27  0x68

#define OFFSET_FR28  0x70

#define OFFSET_FR29  0x78

#define OFFSET_FR30  0x80

#define OFFSET_FR31  0x88

#define OFFSET_FPSCR 0x90

#ifdef __ASM__

# include <arch/asm/regname.h>

# ctx: address of the structure with saved context

.macro CONTEXT_SAVE_ARCH_CORE ctx:req

    stw sp, OFFSET_SP(\ctx)

    stw r2, OFFSET_R2(\ctx)

    stw r13, OFFSET_R13(\ctx)

    stw r14, OFFSET_R14(\ctx)

    stw r15, OFFSET_R15(\ctx)

    stw r16, OFFSET_R16(\ctx)

    stw r17, OFFSET_R17(\ctx)

    stw r18, OFFSET_R18(\ctx)

    stw r19, OFFSET_R19(\ctx)

    stw r20, OFFSET_R20(\ctx)

    stw r21, OFFSET_R21(\ctx)

    stw r22, OFFSET_R22(\ctx)

    stw r23, OFFSET_R23(\ctx)

    stw r24, OFFSET_R24(\ctx)

    stw r25, OFFSET_R25(\ctx)

    stw r26, OFFSET_R26(\ctx)

    stw r27, OFFSET_R27(\ctx)

    stw r28, OFFSET_R28(\ctx)

    stw r29, OFFSET_R29(\ctx)

    stw r30, OFFSET_R30(\ctx)

    stw r31, OFFSET_R31(\ctx)

.endm

# ctx: address of the structure with saved context

.macro CONTEXT_RESTORE_ARCH_CORE ctx:req

    lwz sp, OFFSET_SP(\ctx)

    lwz r2, OFFSET_R2(\ctx)

    lwz r13, OFFSET_R13(\ctx)

    lwz r14, OFFSET_R14(\ctx)

    lwz r15, OFFSET_R15(\ctx)

    lwz r16, OFFSET_R16(\ctx)

    lwz r17, OFFSET_R17(\ctx)

    lwz r18, OFFSET_R18(\ctx)

    lwz r19, OFFSET_R19(\ctx)

    lwz r20, OFFSET_R20(\ctx)

    lwz r21, OFFSET_R21(\ctx)

    lwz r22, OFFSET_R22(\ctx)

    lwz r23, OFFSET_R23(\ctx)

    lwz r24, OFFSET_R24(\ctx)

    lwz r25, OFFSET_R25(\ctx)

    lwz r26, OFFSET_R26(\ctx)

    lwz r27, OFFSET_R27(\ctx)

    lwz r28, OFFSET_R28(\ctx)

    lwz r29, OFFSET_R29(\ctx)

    lwz r30, OFFSET_R30(\ctx)

    lwz r31, OFFSET_R31(\ctx)

.endm

#endif /* __ASM__ */

#endif