| /* 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 |
