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bafdb645 GL |
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 |