2/* $NetBSD: locore.S,v 1.24 2000/05/31 05:09:17 thorpej Exp $ */
3
4/*
5 * Copyright (C) 2001 Benno Rice
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
26 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28/*
29 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
30 * Copyright (C) 1995, 1996 TooLs GmbH.
31 * All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by TooLs GmbH.
44 * 4. The name of TooLs GmbH may not be used to endorse or promote products
45 * derived from this software without specific prior written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
50 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
51 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
52 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
53 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
54 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
55 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
56 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
57 */
58
59#include "assym.s"
60
61#include <sys/syscall.h>
62
63#include <machine/trap.h>
64#include <machine/param.h>
65#include <machine/sr.h>
66#include <machine/spr.h>
67#include <machine/psl.h>
68#include <machine/asm.h>
69
70/* Locate the per-CPU data structure */
71#define GET_CPUINFO(r) \
72 mfsprg0 r
73
74/*
75 * Globals
76 */
77 .data
78GLOBAL(tmpstk)
79 .space 8208
80GLOBAL(esym)
81 .long 0 /* end of symbol table */
82
83GLOBAL(ofmsr)
84 .long 0 /* msr used in Open Firmware */
85
86GLOBAL(powersave)
87 .long 0
88
89#define INTSTK 16384 /* 16K interrupt stack */
90#define INTRCNT_COUNT 256 /* max(HROWPIC_IRQMAX,OPENPIC_IRQMAX) */
91GLOBAL(intrnames)
92 .space INTRCNT_COUNT * (MAXCOMLEN + 1) * 2
93GLOBAL(eintrnames)
94 .align 4
95GLOBAL(intrcnt)
96 .space INTRCNT_COUNT * 4 * 2
97GLOBAL(eintrcnt)
98
99/*
100 * File-scope for locore.S
101 */
102idle_u:
103 .long 0 /* fake uarea during idle after exit */
104openfirmware_entry:
| 2/* $NetBSD: locore.S,v 1.24 2000/05/31 05:09:17 thorpej Exp $ */
3
4/*
5 * Copyright (C) 2001 Benno Rice
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
26 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28/*
29 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
30 * Copyright (C) 1995, 1996 TooLs GmbH.
31 * All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by TooLs GmbH.
44 * 4. The name of TooLs GmbH may not be used to endorse or promote products
45 * derived from this software without specific prior written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
50 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
51 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
52 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
53 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
54 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
55 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
56 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
57 */
58
59#include "assym.s"
60
61#include <sys/syscall.h>
62
63#include <machine/trap.h>
64#include <machine/param.h>
65#include <machine/sr.h>
66#include <machine/spr.h>
67#include <machine/psl.h>
68#include <machine/asm.h>
69
70/* Locate the per-CPU data structure */
71#define GET_CPUINFO(r) \
72 mfsprg0 r
73
74/*
75 * Globals
76 */
77 .data
78GLOBAL(tmpstk)
79 .space 8208
80GLOBAL(esym)
81 .long 0 /* end of symbol table */
82
83GLOBAL(ofmsr)
84 .long 0 /* msr used in Open Firmware */
85
86GLOBAL(powersave)
87 .long 0
88
89#define INTSTK 16384 /* 16K interrupt stack */
90#define INTRCNT_COUNT 256 /* max(HROWPIC_IRQMAX,OPENPIC_IRQMAX) */
91GLOBAL(intrnames)
92 .space INTRCNT_COUNT * (MAXCOMLEN + 1) * 2
93GLOBAL(eintrnames)
94 .align 4
95GLOBAL(intrcnt)
96 .space INTRCNT_COUNT * 4 * 2
97GLOBAL(eintrcnt)
98
99/*
100 * File-scope for locore.S
101 */
102idle_u:
103 .long 0 /* fake uarea during idle after exit */
104openfirmware_entry:
|
106srsave:
107 .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
108
109/*
110 * This symbol is here for the benefit of kvm_mkdb, and is supposed to
111 * mark the start of kernel text.
112 */
113 .text
114 .globl kernel_text
115kernel_text:
116
117/*
118 * Startup entry. Note, this must be the first thing in the text
119 * segment!
120 */
121 .text
122 .globl __start
123__start:
124#ifdef FIRMWORKSBUGS
125 mfmsr 0
126 andi. 0,0,PSL_IR|PSL_DR
127 beq 1f
128
129 bl ofwr_init
1301:
131#endif
132 li 8,0
133 li 9,0x100
134 mtctr 9
1351:
136 dcbf 0,8
137 icbi 0,8
138 addi 8,8,0x20
139 bdnz 1b
140 sync
141 isync
142
143 /* Save the argument pointer and length */
144 mr 20,6
145 mr 21,7
146
147 lis 8,openfirmware_entry@ha
148 stw 5,openfirmware_entry@l(8) /* save client interface handler */
149 mr 3,5
150
151 lis 1,tmpstk@ha
152 addi 1,1,tmpstk@l
153 addi 1,1,8192
154
155 mfmsr 0
156 lis 9,ofmsr@ha
157 stw 0,ofmsr@l(9)
158
159 bl OF_init
160
161 lis 4,end@ha
162 addi 4,4,end@l
163 mr 5,4
164
165 lis 3,kernel_text@ha
166 addi 3,3,kernel_text@l
167
168 /* Restore the argument pointer and length */
169 mr 6,20
170 mr 7,21
171
172 bl powerpc_init
173 bl mi_startup
174 b OF_exit
175
176/*
177 * int setfault()
178 *
179 * Similar to setjmp to setup for handling faults on accesses to user memory.
180 * Any routine using this may only call bcopy, either the form below,
181 * or the (currently used) C code optimized, so it doesn't use any non-volatile
182 * registers.
183 */
184 .globl setfault
185setfault:
186 mflr 0
187 mfcr 12
188 mfsprg 4,0
189 lwz 4,PC_CURTHREAD(4)
190 lwz 4,TD_PCB(4)
191 stw 3,PCB_ONFAULT(4)
192 stw 0,0(3)
193 stw 1,4(3)
194 stw 2,8(3)
195 stmw 12,12(3)
196 xor 3,3,3
197 blr
198
199#include <powerpc/powerpc/trap_subr.S>
| 106srsave:
107 .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
108
109/*
110 * This symbol is here for the benefit of kvm_mkdb, and is supposed to
111 * mark the start of kernel text.
112 */
113 .text
114 .globl kernel_text
115kernel_text:
116
117/*
118 * Startup entry. Note, this must be the first thing in the text
119 * segment!
120 */
121 .text
122 .globl __start
123__start:
124#ifdef FIRMWORKSBUGS
125 mfmsr 0
126 andi. 0,0,PSL_IR|PSL_DR
127 beq 1f
128
129 bl ofwr_init
1301:
131#endif
132 li 8,0
133 li 9,0x100
134 mtctr 9
1351:
136 dcbf 0,8
137 icbi 0,8
138 addi 8,8,0x20
139 bdnz 1b
140 sync
141 isync
142
143 /* Save the argument pointer and length */
144 mr 20,6
145 mr 21,7
146
147 lis 8,openfirmware_entry@ha
148 stw 5,openfirmware_entry@l(8) /* save client interface handler */
149 mr 3,5
150
151 lis 1,tmpstk@ha
152 addi 1,1,tmpstk@l
153 addi 1,1,8192
154
155 mfmsr 0
156 lis 9,ofmsr@ha
157 stw 0,ofmsr@l(9)
158
159 bl OF_init
160
161 lis 4,end@ha
162 addi 4,4,end@l
163 mr 5,4
164
165 lis 3,kernel_text@ha
166 addi 3,3,kernel_text@l
167
168 /* Restore the argument pointer and length */
169 mr 6,20
170 mr 7,21
171
172 bl powerpc_init
173 bl mi_startup
174 b OF_exit
175
176/*
177 * int setfault()
178 *
179 * Similar to setjmp to setup for handling faults on accesses to user memory.
180 * Any routine using this may only call bcopy, either the form below,
181 * or the (currently used) C code optimized, so it doesn't use any non-volatile
182 * registers.
183 */
184 .globl setfault
185setfault:
186 mflr 0
187 mfcr 12
188 mfsprg 4,0
189 lwz 4,PC_CURTHREAD(4)
190 lwz 4,TD_PCB(4)
191 stw 3,PCB_ONFAULT(4)
192 stw 0,0(3)
193 stw 1,4(3)
194 stw 2,8(3)
195 stmw 12,12(3)
196 xor 3,3,3
197 blr
198
199#include <powerpc/powerpc/trap_subr.S>
|