| Geoff Levand | bafdb64 | 2007-07-04 09:07:18 +1000 | [diff] [blame^] | 1 | /* |
| 2 | * PS3 bootwrapper hvcalls. |
| 3 | * |
| 4 | * Copyright (C) 2007 Sony Computer Entertainment Inc. |
| 5 | * Copyright 2007 Sony Corp. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; version 2 of the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #include "ppc_asm.h" |
| 22 | |
| 23 | /* |
| 24 | * The PS3 hypervisor uses a 64 bit "C" language calling convention. |
| 25 | * The routines here marshal arguments between the 32 bit wrapper |
| 26 | * program and the 64 bit hvcalls. |
| 27 | * |
| 28 | * wrapper lv1 |
| 29 | * 32-bit (h,l) 64-bit |
| 30 | * |
| 31 | * 1: r3,r4 <-> r3 |
| 32 | * 2: r5,r6 <-> r4 |
| 33 | * 3: r7,r8 <-> r5 |
| 34 | * 4: r9,r10 <-> r6 |
| 35 | * 5: 8(r1),12(r1) <-> r7 |
| 36 | * 6: 16(r1),20(r1) <-> r8 |
| 37 | * 7: 24(r1),28(r1) <-> r9 |
| 38 | * 8: 32(r1),36(r1) <-> r10 |
| 39 | * |
| 40 | */ |
| 41 | |
| 42 | .macro GLOBAL name |
| 43 | .section ".text" |
| 44 | .balign 4 |
| 45 | .globl \name |
| 46 | \name: |
| 47 | .endm |
| 48 | |
| 49 | .macro NO_SUPPORT name |
| 50 | GLOBAL \name |
| 51 | b ps3_no_support |
| 52 | .endm |
| 53 | |
| 54 | .macro HVCALL num |
| 55 | li r11, \num |
| 56 | .long 0x44000022 |
| 57 | extsw r3, r3 |
| 58 | .endm |
| 59 | |
| 60 | .macro SAVE_LR offset=4 |
| 61 | mflr r0 |
| 62 | stw r0, \offset(r1) |
| 63 | .endm |
| 64 | |
| 65 | .macro LOAD_LR offset=4 |
| 66 | lwz r0, \offset(r1) |
| 67 | mtlr r0 |
| 68 | .endm |
| 69 | |
| 70 | .macro LOAD_64_REG target,high,low |
| 71 | sldi r11, \high, 32 |
| 72 | or \target, r11, \low |
| 73 | .endm |
| 74 | |
| 75 | .macro LOAD_64_STACK target,offset |
| 76 | ld \target, \offset(r1) |
| 77 | .endm |
| 78 | |
| 79 | .macro LOAD_R3 |
| 80 | LOAD_64_REG r3,r3,r4 |
| 81 | .endm |
| 82 | |
| 83 | .macro LOAD_R4 |
| 84 | LOAD_64_REG r4,r5,r6 |
| 85 | .endm |
| 86 | |
| 87 | .macro LOAD_R5 |
| 88 | LOAD_64_REG r5,r7,r8 |
| 89 | .endm |
| 90 | |
| 91 | .macro LOAD_R6 |
| 92 | LOAD_64_REG r6,r9,r10 |
| 93 | .endm |
| 94 | |
| 95 | .macro LOAD_R7 |
| 96 | LOAD_64_STACK r7,8 |
| 97 | .endm |
| 98 | |
| 99 | .macro LOAD_R8 |
| 100 | LOAD_64_STACK r8,16 |
| 101 | .endm |
| 102 | |
| 103 | .macro LOAD_R9 |
| 104 | LOAD_64_STACK r9,24 |
| 105 | .endm |
| 106 | |
| 107 | .macro LOAD_R10 |
| 108 | LOAD_64_STACK r10,32 |
| 109 | .endm |
| 110 | |
| 111 | .macro LOAD_REGS_0 |
| 112 | stwu 1,-16(1) |
| 113 | stw 3, 8(1) |
| 114 | .endm |
| 115 | |
| 116 | .macro LOAD_REGS_5 |
| 117 | LOAD_R3 |
| 118 | LOAD_R4 |
| 119 | LOAD_R5 |
| 120 | LOAD_R6 |
| 121 | LOAD_R7 |
| 122 | .endm |
| 123 | |
| 124 | .macro LOAD_REGS_6 |
| 125 | LOAD_REGS_5 |
| 126 | LOAD_R8 |
| 127 | .endm |
| 128 | |
| 129 | .macro LOAD_REGS_8 |
| 130 | LOAD_REGS_6 |
| 131 | LOAD_R9 |
| 132 | LOAD_R10 |
| 133 | .endm |
| 134 | |
| 135 | .macro STORE_REGS_0_1 |
| 136 | lwz r11, 8(r1) |
| 137 | std r4, 0(r11) |
| 138 | mr r4, r3 |
| 139 | li r3, 0 |
| 140 | addi r1,r1,16 |
| 141 | .endm |
| 142 | |
| 143 | .macro STORE_REGS_5_2 |
| 144 | lwz r11, 16(r1) |
| 145 | std r4, 0(r11) |
| 146 | lwz r11, 24(r1) |
| 147 | std r5, 0(r11) |
| 148 | .endm |
| 149 | |
| 150 | .macro STORE_REGS_6_1 |
| 151 | lwz r11, 24(r1) |
| 152 | std r4, 0(r11) |
| 153 | .endm |
| 154 | |
| 155 | GLOBAL lv1_get_logical_ppe_id |
| 156 | SAVE_LR |
| 157 | LOAD_REGS_0 |
| 158 | HVCALL 69 |
| 159 | STORE_REGS_0_1 |
| 160 | LOAD_LR |
| 161 | blr |
| 162 | |
| 163 | GLOBAL lv1_get_logical_partition_id |
| 164 | SAVE_LR |
| 165 | LOAD_REGS_0 |
| 166 | HVCALL 74 |
| 167 | STORE_REGS_0_1 |
| 168 | LOAD_LR |
| 169 | blr |
| 170 | |
| 171 | GLOBAL lv1_get_repository_node_value |
| 172 | SAVE_LR |
| 173 | LOAD_REGS_5 |
| 174 | HVCALL 91 |
| 175 | STORE_REGS_5_2 |
| 176 | LOAD_LR |
| 177 | blr |
| 178 | |
| 179 | GLOBAL lv1_panic |
| 180 | SAVE_LR |
| 181 | LOAD_REGS_8 |
| 182 | HVCALL 255 |
| 183 | LOAD_LR |
| 184 | blr |