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gerrit-public.fairphone.software / kernel / msm / 0c99c5288eb9b1bbc9684b0ec0fd7efc578749b3 / . / arch / powerpc / boot / ps3-hvcall.S
blob: d6068f1829ca354552d3d6632a889fedaa627c75 [file] [log] [blame]
Geoff Levandbafdb642007-07-04 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
Geoff Levand24ed8552007-07-21 04:37:49 -0700[diff] [blame]23 .machine "ppc64"
24
Geoff Levandbafdb642007-07-04 09:07:18 +1000[diff] [blame]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)
Geoff Levande5a21dd2008-02-09 09:52:48 +1100[diff] [blame]148 lwz r11, 20(r1)
Geoff Levandbafdb642007-07-04 09:07:18 +1000[diff] [blame]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
157GLOBAL 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
165GLOBAL 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
173GLOBAL 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
181GLOBAL lv1_panic
182 SAVE_LR
183 LOAD_REGS_8
184 HVCALL 255
185 LOAD_LR
186 blr