/*
* Beat hypervisor call I/F
*
* (C) Copyright 2007 TOSHIBA CORPORATION
*
* This code is based on arch/powerpc/platforms/pseries/hvCall.S.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <asm/ppc_asm.h>
#define STK_PARM(i) (48 + ((i)-3)*8)
/* Not implemented on Beat, now */
#define HCALL_INST_PRECALL
#define HCALL_INST_POSTCALL
.text
#define HVSC .long 0x44000022
/* Note: takes only 7 input parameters at maximum */
_GLOBAL(beat_hcall_norets)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HCALL_INST_PRECALL
mr r11,r3
mr r3,r4
mr r4,r5
mr r5,r6
mr r6,r7
mr r7,r8
mr r8,r9
HVSC /* invoke the hypervisor */
HCALL_INST_POSTCALL
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
/* Note: takes 8 input parameters at maximum */
_GLOBAL(beat_hcall_norets8)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HCALL_INST_PRECALL
mr r11,r3
mr r3,r4
mr r4,r5
mr r5,r6
mr r6,r7
mr r7,r8
mr r8,r9
ld r10,STK_PARM(r10)(r1)
HVSC /* invoke the hypervisor */
HCALL_INST_POSTCALL
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
/* Note: takes only 6 input parameters, 1 output parameters at maximum */
_GLOBAL(beat_hcall1)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HCALL_INST_PRECALL
std r4,STK_PARM(r4)(r1) /* save ret buffer */
mr r11,r3
mr r3,r5
mr r4,r6
mr r5,r7
mr r6,r8
mr r7,r9
mr r8,r10
HVSC /* invoke the hypervisor */
HCALL_INST_POSTCALL
ld r12,STK_PARM(r4)(r1)
std r4, 0(r12)
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
/* Note: takes only 6 input parameters, 2 output parameters at maximum */
_GLOBAL(beat_hcall2)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HCALL_INST_PRECALL
std r4,STK_PARM(r4)(r1) /* save ret buffer */
mr r11,r3
mr r3,r5
mr r4,r6
mr r5,r7
mr r6,r8
mr r7,r9
mr r8,r10
HVSC /* invoke the hypervisor */
HCALL_INST_POSTCALL
ld r12,STK_PARM(r4)(r1)
std r4, 0(r12)
std r5, 8(r12)
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
/* Note: takes only 6 input parameters, 3 output parameters at maximum */
_GLOBAL(beat_hcall3)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HCALL_INST_PRECALL
std r4,STK_PARM(r4)(r1) /* save ret buffer */
mr r11,r3
mr r3,r5
mr r4,r6
mr r5,r7
mr r6,r8
mr r7,r9
mr r8,r10
HVSC /* invoke the hypervisor */
HCALL_INST_POSTCALL
ld r12,STK_PARM(r4)(r1)
std r4, 0(r12)
std r5, 8(r12)
std r6, 16(r12)
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
/* Note: takes only 6 input parameters, 4 output parameters at maximum */
_GLOBAL(beat_hcall4)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HCALL_INST_PRECALL
std r4,STK_PARM(r4)(r1) /* save ret buffer */
mr r11,r3
mr r3,r5
mr r4,r6
mr r5,r7
mr r6,r8
mr r7,r9
mr r8,r10
HVSC /* invoke the hypervisor */
HCALL_INST_POSTCALL
ld r12,STK_PARM(r4)(r1)
std r4, 0(r12)
std r5, 8(r12)
std r6, 16(r12)
std r7, 24(r12)
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
/* Note: takes only 6 input parameters, 5 output parameters at maximum */
_GLOBAL(beat_hcall5)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HCALL_INST_PRECALL
std r4,STK_PARM(r4)(r1) /* save ret buffer */
mr r11,r3
mr r3,r5
mr r4,r6
mr r5,r7
mr r6,r8
mr r7,r9
mr r8,r10
HVSC /* invoke the hypervisor */
HCALL_INST_POSTCALL
ld r12,STK_PARM(r4)(r1)
std r4, 0(r12)
std r5, 8(r12)
std r6, 16(r12)
std r7, 24(r12)
std r8, 32(r12)
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
/* Note: takes only 6 input parameters, 6 output parameters at maximum */
_GLOBAL(beat_hcall6)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
HCALL_INST_PRECALL
std r4,STK_PARM(r4)(r1) /* save ret buffer */
mr r11,r3
mr r3,r5
mr r4,r6
mr r5,r7
mr r6,r8
mr r7,r9
mr r8,r10
HVSC /* invoke the hypervisor */
HCALL_INST_POSTCALL
ld r12,STK_PARM(r4)(r1)
std r4, 0(r12)
std r5, 8(r12)
std r6, 16(r12)
std r7, 24(r12)
std r8, 32(r12)
std r9, 40(r12)
lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
