Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 *  PS3 bootwrapper hvcalls.

 *

 *  Copyright (C) 2007 Sony Computer Entertainment Inc.

 *  Copyright 2007 Sony Corp.

 *

 *  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; version 2 of the License.

 *

 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#include "ppc_asm.h"

        .machine "ppc64"

/*

 * The PS3 hypervisor uses a 64 bit "C" language calling convention.

 * The routines here marshal arguments between the 32 bit wrapper

 * program and the 64 bit hvcalls.

 *

 *  wrapper           lv1

 *  32-bit (h,l)      64-bit

 *

 *  1: r3,r4          <-> r3

 *  2: r5,r6          <-> r4

 *  3: r7,r8          <-> r5

 *  4: r9,r10         <-> r6

 *  5: 8(r1),12(r1)   <-> r7

 *  6: 16(r1),20(r1)  <-> r8

 *  7: 24(r1),28(r1)  <-> r9

 *  8: 32(r1),36(r1)  <-> r10

 *

 */

.macro GLOBAL name

        .section ".text"

        .balign 4

        .globl \name

\name:

.endm

.macro NO_SUPPORT name

        GLOBAL \name

        b ps3_no_support

.endm

.macro HVCALL num

        li r11, \num

        .long 0x44000022

        extsw r3, r3

.endm

.macro SAVE_LR offset=4

        mflr r0

        stw r0, \offset(r1)

.endm

.macro LOAD_LR offset=4

        lwz r0, \offset(r1)

        mtlr r0

.endm

.macro LOAD_64_REG target,high,low

        sldi r11, \high, 32

        or \target, r11, \low

.endm

.macro LOAD_64_STACK target,offset

        ld \target, \offset(r1)

.endm

.macro LOAD_R3

        LOAD_64_REG r3,r3,r4

.endm

.macro LOAD_R4

        LOAD_64_REG r4,r5,r6

.endm

.macro LOAD_R5

        LOAD_64_REG r5,r7,r8

.endm

.macro LOAD_R6

        LOAD_64_REG r6,r9,r10

.endm

.macro LOAD_R7

        LOAD_64_STACK r7,8

.endm

.macro LOAD_R8

        LOAD_64_STACK r8,16

.endm

.macro LOAD_R9

        LOAD_64_STACK r9,24

.endm

.macro LOAD_R10

        LOAD_64_STACK r10,32

.endm

.macro LOAD_REGS_0

        stwu 1,-16(1)

        stw 3, 8(1)

.endm

.macro LOAD_REGS_5

        LOAD_R3

        LOAD_R4

        LOAD_R5

        LOAD_R6

        LOAD_R7

.endm

.macro LOAD_REGS_6

        LOAD_REGS_5

        LOAD_R8

.endm

.macro LOAD_REGS_8

        LOAD_REGS_6

        LOAD_R9

        LOAD_R10

.endm

.macro STORE_REGS_0_1

        lwz r11, 8(r1)

        std r4, 0(r11)

        mr r4, r3

        li r3, 0

        addi r1,r1,16

.endm

.macro STORE_REGS_5_2

        lwz r11, 16(r1)

        std r4, 0(r11)

        lwz r11, 24(r1)

        std r5, 0(r11)

.endm

.macro STORE_REGS_6_1

        lwz r11, 24(r1)

        std r4, 0(r11)

.endm

GLOBAL lv1_get_logical_ppe_id

        SAVE_LR

        LOAD_REGS_0

        HVCALL 69

        STORE_REGS_0_1

        LOAD_LR

        blr

GLOBAL lv1_get_logical_partition_id

        SAVE_LR

        LOAD_REGS_0

        HVCALL 74

        STORE_REGS_0_1

        LOAD_LR

        blr

GLOBAL lv1_get_repository_node_value

        SAVE_LR

        LOAD_REGS_5

        HVCALL 91

        STORE_REGS_5_2

        LOAD_LR

        blr

GLOBAL lv1_panic

        SAVE_LR

        LOAD_REGS_8

        HVCALL 255

        LOAD_LR

        blr