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1949 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Martin Decky
1949 jermar 3
 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef KERN_ppc32_CONTEXT_OFFSET_H_
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#define KERN_ppc32_CONTEXT_OFFSET_H_
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860 decky 32
#define OFFSET_SP    0x0
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#define OFFSET_PC    0x4
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#define OFFSET_R2    0x8
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#define OFFSET_R13   0xc
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#define OFFSET_R14   0x10
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#define OFFSET_R15   0x14
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#define OFFSET_R16   0x18
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#define OFFSET_R17   0x1c
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#define OFFSET_R18   0x20
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#define OFFSET_R19   0x24
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#define OFFSET_R20   0x28
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#define OFFSET_R21   0x2c
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#define OFFSET_R22   0x30
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#define OFFSET_R23   0x34
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#define OFFSET_R24   0x38
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#define OFFSET_R25   0x3c
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#define OFFSET_R26   0x40
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#define OFFSET_R27   0x44
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#define OFFSET_R28   0x48
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#define OFFSET_R29   0x4c
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#define OFFSET_R30   0x50
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#define OFFSET_R31   0x54
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#define OFFSET_CR    0x58
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#define OFFSET_FR14  0x0
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#define OFFSET_FR15  0x8
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#define OFFSET_FR16  0x10
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#define OFFSET_FR17  0x18
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#define OFFSET_FR18  0x20
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#define OFFSET_FR19  0x28
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#define OFFSET_FR20  0x30
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#define OFFSET_FR21  0x38
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#define OFFSET_FR22  0x40
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#define OFFSET_FR23  0x48
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#define OFFSET_FR24  0x50
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#define OFFSET_FR25  0x58
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#define OFFSET_FR26  0x60
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#define OFFSET_FR27  0x68
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#define OFFSET_FR28  0x70
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#define OFFSET_FR29  0x78
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#define OFFSET_FR30  0x80
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#define OFFSET_FR31  0x88
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#define OFFSET_FPSCR 0x90
1702 cejka 75
 
2781 cejka 76
#ifdef __ASM__
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# include <arch/asm/regname.h>
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# ctx: address of the structure with saved context
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.macro CONTEXT_SAVE_ARCH_CORE ctx:req
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    stw sp, OFFSET_SP(\ctx)
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    stw r2, OFFSET_R2(\ctx)
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    stw r13, OFFSET_R13(\ctx)
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    stw r14, OFFSET_R14(\ctx)
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    stw r15, OFFSET_R15(\ctx)
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    stw r16, OFFSET_R16(\ctx)
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    stw r17, OFFSET_R17(\ctx)
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    stw r18, OFFSET_R18(\ctx)
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    stw r19, OFFSET_R19(\ctx)
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    stw r20, OFFSET_R20(\ctx)
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    stw r21, OFFSET_R21(\ctx)
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    stw r22, OFFSET_R22(\ctx)
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    stw r23, OFFSET_R23(\ctx)
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    stw r24, OFFSET_R24(\ctx)
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    stw r25, OFFSET_R25(\ctx)
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    stw r26, OFFSET_R26(\ctx)
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    stw r27, OFFSET_R27(\ctx)
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    stw r28, OFFSET_R28(\ctx)
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    stw r29, OFFSET_R29(\ctx)
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    stw r30, OFFSET_R30(\ctx)
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    stw r31, OFFSET_R31(\ctx)
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.endm
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# ctx: address of the structure with saved context
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.macro CONTEXT_RESTORE_ARCH_CORE ctx:req
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    lwz sp, OFFSET_SP(\ctx)
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    lwz r2, OFFSET_R2(\ctx)
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    lwz r13, OFFSET_R13(\ctx)
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    lwz r14, OFFSET_R14(\ctx)
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    lwz r15, OFFSET_R15(\ctx)
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    lwz r16, OFFSET_R16(\ctx)
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    lwz r17, OFFSET_R17(\ctx)
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    lwz r18, OFFSET_R18(\ctx)
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    lwz r19, OFFSET_R19(\ctx)
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    lwz r20, OFFSET_R20(\ctx)
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    lwz r21, OFFSET_R21(\ctx)
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    lwz r22, OFFSET_R22(\ctx)
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    lwz r23, OFFSET_R23(\ctx)
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    lwz r24, OFFSET_R24(\ctx)
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    lwz r25, OFFSET_R25(\ctx)
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    lwz r26, OFFSET_R26(\ctx)
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    lwz r27, OFFSET_R27(\ctx)
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    lwz r28, OFFSET_R28(\ctx)
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    lwz r29, OFFSET_R29(\ctx)
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    lwz r30, OFFSET_R30(\ctx)
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    lwz r31, OFFSET_R31(\ctx)
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.endm
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#endif /* __ASM__ */
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#endif