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| /* SPDX-License-Identifier: GPL-2.0-only */
| /*
| * PS3 bootwrapper hvcalls.
| *
| * Copyright (C) 2007 Sony Computer Entertainment Inc.
| * Copyright 2007 Sony Corp.
| */
|
| #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, 20(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
|
|
