1 /* $NetBSD: irq_dispatch.S,v 1.5 2003/10/30 08:57:24 scw Exp $ */
2
3 /*-
4 * Copyright (c) 2002 Fujitsu Component Limited
5 * Copyright (c) 2002 Genetec Corporation
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 * 3. Neither the name of The Fujitsu Component Limited nor the name of
17 * Genetec corporation may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC
21 * CORPORATION ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
22 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED. IN NO EVENT SHALL FUJITSU COMPONENT LIMITED OR GENETEC
25 * CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
28 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
29 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 */
35
36 /*-
37 * Copyright (c) 2002, 2003 Wasabi Systems, Inc.
38 * All rights reserved.
39 *
40 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgement:
52 * This product includes software developed for the NetBSD Project by
53 * Wasabi Systems, Inc.
54 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
55 * or promote products derived from this software without specific prior
56 * written permission.
57 *
58 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
60 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
61 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
62 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
63 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
64 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
65 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
66 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
67 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
68 * POSSIBILITY OF SUCH DAMAGE.
69 */
70
71 #include "assym.s"
72 #include <machine/asm.h>
73 #include <machine/asmacros.h>
74 #include <machine/armreg.h>
75 __FBSDID("$FreeBSD: src/sys/arm/arm/irq_dispatch.S,v 1.4 2005/01/05 21:58:47 imp Exp $");
76
77 /*
78 * irq_entry:
79 * Main entry point for the IRQ vector. This is a generic version
80 * which can be used by different platforms.
81 */
82 .text
83 .align 0
84
85 .Lcurrent_intr_depth:
86 .word _C_LABEL(current_intr_depth)
87 AST_LOCALS
88
89 ASENTRY_NP(irq_entry)
90 sub lr, lr, #0x00000004 /* Adjust the lr */
91 PUSHFRAMEINSVC /* Push an interrupt frame */
92 mov r0, sp /* arg for dispatcher */
93
94 mov r1, #0
95 bl _C_LABEL(arm_handler_execute)
96
97 DO_AST
98 PULLFRAMEFROMSVCANDEXIT
99 movs pc, lr /* Exit */
100
101 .bss
102 .align 0
103
104
105 .global _C_LABEL(intrnames), _C_LABEL(eintrnames)
106 .global _C_LABEL(intrcnt), _C_LABEL(eintrcnt)
107 _C_LABEL(intrnames):
108 .space NIRQ * (MAXCOMLEN + 1)
109 _C_LABEL(eintrnames):
110 _C_LABEL(intrcnt):
111 .space NIRQ * 4
112 _C_LABEL(eintrcnt):
113
114 .global _C_LABEL(current_intr_depth)
115 _C_LABEL(current_intr_depth):
116 .word 0
117
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