1 /* $NetBSD: pmppc_locore.S,v 1.3 2008/02/05 22:31:49 garbled Exp $ */
2 /* $OpenBSD: locore.S,v 1.4 1997/01/26 09:06:38 rahnds Exp $ */
5 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
6 * Copyright (C) 1995, 1996 TooLs GmbH.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by TooLs GmbH.
20 * 4. The name of TooLs GmbH may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 #include "fs_kernfs.h"
38 #include "opt_ipkdb.h"
39 #include "opt_multiprocessor.h"
40 #include "opt_openpic.h"
41 #include "opt_ppcparam.h"
44 #include <sys/syscall.h>
46 #include <machine/param.h>
47 #include <machine/vmparam.h>
48 #include <machine/pmap.h>
49 #include <machine/psl.h>
50 #include <machine/trap.h>
52 #include <machine/asm.h>
54 #include <powerpc/spr.h>
55 #include <powerpc/oea/hid.h>
60 * Some instructions gas doesn't understand (yet?)
62 #define bdneq bdnzf 2,
68 .long 0 /* start symbol table */
70 .long 0 /* end symbol table */
72 .long 0 /* cpu features */
74 * This symbol is here for the benefit of kvm_mkdb, and is supposed to
75 * mark the start of kernel text.
78 .globl _C_LABEL(kernel_text)
79 _C_LABEL(kernel_text):
82 * Startup entry. Note, this must be the first thing in the text
89 mtmsr 0 /* Disable FPU/MMU/exceptions */
92 /* Enable data and instruction caches */
95 ori 8, 8, (HID0_ICE | HID0_DCE)@l
99 /* compute end of kernel memory */
100 lis 4,_C_LABEL(end)@ha
101 addi 4,4,_C_LABEL(end)@l
103 INIT_CPUINFO(4,1,9,0)
115 ori 8, 8, (HID0_ICE | HID0_DCE)@l
123 loop: b loop /* XXX not reached */
125 .globl _C_LABEL(enable_intr)
126 _C_LABEL(enable_intr):
132 .globl _C_LABEL(disable_intr)
133 _C_LABEL(disable_intr):
140 * Include common switch / setfault code
142 #include <powerpc/powerpc/locore_subr.S>
145 * Include common trap / execption code
147 #include <powerpc/powerpc/trap_subr.S>
150 * Include PIO routines
152 #include <powerpc/powerpc/pio_subr.S>