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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 | ||
24ed8559 GL |
23 | .machine "ppc64" |
24 | ||
bafdb645 GL |
25 | /* |
26 | * The PS3 hypervisor uses a 64 bit "C" language calling convention. | |
27 | * The routines here marshal arguments between the 32 bit wrapper | |
28 | * program and the 64 bit hvcalls. | |
29 | * | |
30 | * wrapper lv1 | |
31 | * 32-bit (h,l) 64-bit | |
32 | * | |
33 | * 1: r3,r4 <-> r3 | |
34 | * 2: r5,r6 <-> r4 | |
35 | * 3: r7,r8 <-> r5 | |
36 | * 4: r9,r10 <-> r6 | |
37 | * 5: 8(r1),12(r1) <-> r7 | |
38 | * 6: 16(r1),20(r1) <-> r8 | |
39 | * 7: 24(r1),28(r1) <-> r9 | |
40 | * 8: 32(r1),36(r1) <-> r10 | |
41 | * | |
42 | */ | |
43 | ||
44 | .macro GLOBAL name | |
45 | .section ".text" | |
46 | .balign 4 | |
47 | .globl \name | |
48 | \name: | |
49 | .endm | |
50 | ||
51 | .macro NO_SUPPORT name | |
52 | GLOBAL \name | |
53 | b ps3_no_support | |
54 | .endm | |
55 | ||
56 | .macro HVCALL num | |
57 | li r11, \num | |
58 | .long 0x44000022 | |
59 | extsw r3, r3 | |
60 | .endm | |
61 | ||
62 | .macro SAVE_LR offset=4 | |
63 | mflr r0 | |
64 | stw r0, \offset(r1) | |
65 | .endm | |
66 | ||
67 | .macro LOAD_LR offset=4 | |
68 | lwz r0, \offset(r1) | |
69 | mtlr r0 | |
70 | .endm | |
71 | ||
72 | .macro LOAD_64_REG target,high,low | |
73 | sldi r11, \high, 32 | |
74 | or \target, r11, \low | |
75 | .endm | |
76 | ||
77 | .macro LOAD_64_STACK target,offset | |
78 | ld \target, \offset(r1) | |
79 | .endm | |
80 | ||
81 | .macro LOAD_R3 | |
82 | LOAD_64_REG r3,r3,r4 | |
83 | .endm | |
84 | ||
85 | .macro LOAD_R4 | |
86 | LOAD_64_REG r4,r5,r6 | |
87 | .endm | |
88 | ||
89 | .macro LOAD_R5 | |
90 | LOAD_64_REG r5,r7,r8 | |
91 | .endm | |
92 | ||
93 | .macro LOAD_R6 | |
94 | LOAD_64_REG r6,r9,r10 | |
95 | .endm | |
96 | ||
97 | .macro LOAD_R7 | |
98 | LOAD_64_STACK r7,8 | |
99 | .endm | |
100 | ||
101 | .macro LOAD_R8 | |
102 | LOAD_64_STACK r8,16 | |
103 | .endm | |
104 | ||
105 | .macro LOAD_R9 | |
106 | LOAD_64_STACK r9,24 | |
107 | .endm | |
108 | ||
109 | .macro LOAD_R10 | |
110 | LOAD_64_STACK r10,32 | |
111 | .endm | |
112 | ||
113 | .macro LOAD_REGS_0 | |
114 | stwu 1,-16(1) | |
115 | stw 3, 8(1) | |
116 | .endm | |
117 | ||
118 | .macro LOAD_REGS_5 | |
119 | LOAD_R3 | |
120 | LOAD_R4 | |
121 | LOAD_R5 | |
122 | LOAD_R6 | |
123 | LOAD_R7 | |
124 | .endm | |
125 | ||
126 | .macro LOAD_REGS_6 | |
127 | LOAD_REGS_5 | |
128 | LOAD_R8 | |
129 | .endm | |
130 | ||
131 | .macro LOAD_REGS_8 | |
132 | LOAD_REGS_6 | |
133 | LOAD_R9 | |
134 | LOAD_R10 | |
135 | .endm | |
136 | ||
137 | .macro STORE_REGS_0_1 | |
138 | lwz r11, 8(r1) | |
139 | std r4, 0(r11) | |
140 | mr r4, r3 | |
141 | li r3, 0 | |
142 | addi r1,r1,16 | |
143 | .endm | |
144 | ||
145 | .macro STORE_REGS_5_2 | |
146 | lwz r11, 16(r1) | |
147 | std r4, 0(r11) | |
e5a21dd8 | 148 | lwz r11, 20(r1) |
bafdb645 GL |
149 | std r5, 0(r11) |
150 | .endm | |
151 | ||
152 | .macro STORE_REGS_6_1 | |
153 | lwz r11, 24(r1) | |
154 | std r4, 0(r11) | |
155 | .endm | |
156 | ||
157 | GLOBAL lv1_get_logical_ppe_id | |
158 | SAVE_LR | |
159 | LOAD_REGS_0 | |
160 | HVCALL 69 | |
161 | STORE_REGS_0_1 | |
162 | LOAD_LR | |
163 | blr | |
164 | ||
165 | GLOBAL lv1_get_logical_partition_id | |
166 | SAVE_LR | |
167 | LOAD_REGS_0 | |
168 | HVCALL 74 | |
169 | STORE_REGS_0_1 | |
170 | LOAD_LR | |
171 | blr | |
172 | ||
173 | GLOBAL lv1_get_repository_node_value | |
174 | SAVE_LR | |
175 | LOAD_REGS_5 | |
176 | HVCALL 91 | |
177 | STORE_REGS_5_2 | |
178 | LOAD_LR | |
179 | blr | |
180 | ||
181 | GLOBAL lv1_panic | |
182 | SAVE_LR | |
183 | LOAD_REGS_8 | |
184 | HVCALL 255 | |
185 | LOAD_LR | |
186 | blr |