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git01.mediatek.com / filogic / atf / 1a270c07f1a7b8f880f45578ec522e6a50bea2d9 / . / common / aarch64 / early_exceptions.S
blob: 64bfcd0f0cb5ec89b4bcf7025723a13f88b7a0ea [file] [log] [blame]
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]1/*
Yatharth Kochar6c0566c2015-10-02 17:56:48 +0100[diff] [blame]2 * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * Neither the name of ARM nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific
16 * prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]31#include <asm_macros.S>
Yatharth Kochar6c0566c2015-10-02 17:56:48 +0100[diff] [blame]32#include <bl_common.h>
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]33
34 .globl early_exceptions
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]35
Achin Guptab739f222014-01-18 16:50:09 +0000[diff] [blame]36 .section .vectors, "ax"; .align 11
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]37
38 /* -----------------------------------------------------
Sandrine Bailleux4d052752014-03-24 10:24:08 +0000[diff] [blame]39 * Very simple stackless exception handlers used by BL2
Juan Castillo7d199412015-12-14 09:35:25 +0000[diff] [blame]40 * and BL31 bootloader stages. BL31 uses them before
Sandrine Bailleux4d052752014-03-24 10:24:08 +0000[diff] [blame]41 * stacks are setup. BL2 uses them throughout.
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]42 * -----------------------------------------------------
43 */
44 .align 7
45early_exceptions:
46 /* -----------------------------------------------------
47 * Current EL with SP0 : 0x0 - 0x180
48 * -----------------------------------------------------
49 */
50SynchronousExceptionSP0:
51 mov x0, #SYNC_EXCEPTION_SP_EL0
52 bl plat_report_exception
53 b SynchronousExceptionSP0
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]54 check_vector_size SynchronousExceptionSP0
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]55
56 .align 7
57IrqSP0:
58 mov x0, #IRQ_SP_EL0
59 bl plat_report_exception
60 b IrqSP0
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]61 check_vector_size IrqSP0
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]62
63 .align 7
64FiqSP0:
65 mov x0, #FIQ_SP_EL0
66 bl plat_report_exception
67 b FiqSP0
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]68 check_vector_size FiqSP0
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]69
70 .align 7
71SErrorSP0:
72 mov x0, #SERROR_SP_EL0
73 bl plat_report_exception
74 b SErrorSP0
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]75 check_vector_size SErrorSP0
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]76
77 /* -----------------------------------------------------
78 * Current EL with SPx: 0x200 - 0x380
79 * -----------------------------------------------------
80 */
81 .align 7
82SynchronousExceptionSPx:
83 mov x0, #SYNC_EXCEPTION_SP_ELX
84 bl plat_report_exception
85 b SynchronousExceptionSPx
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]86 check_vector_size SynchronousExceptionSPx
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]87
88 .align 7
89IrqSPx:
90 mov x0, #IRQ_SP_ELX
91 bl plat_report_exception
92 b IrqSPx
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]93 check_vector_size IrqSPx
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]94
95 .align 7
96FiqSPx:
97 mov x0, #FIQ_SP_ELX
98 bl plat_report_exception
99 b FiqSPx
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]100 check_vector_size FiqSPx
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]101
102 .align 7
103SErrorSPx:
104 mov x0, #SERROR_SP_ELX
105 bl plat_report_exception
106 b SErrorSPx
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]107 check_vector_size SErrorSPx
Achin Gupta4f6ad662013-10-25 09:08:21 +0100[diff] [blame]108
109 /* -----------------------------------------------------
110 * Lower EL using AArch64 : 0x400 - 0x580
111 * -----------------------------------------------------
112 */
113 .align 7
114SynchronousExceptionA64:
Sandrine Bailleux4d052752014-03-24 10:24:08 +0000[diff] [blame]115 mov x0, #SYNC_EXCEPTION_AARCH64
116 bl plat_report_exception
117 b SynchronousExceptionA64
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]118 check_vector_size SynchronousExceptionA64
Jeenu Viswambharan65f07302014-02-07 15:50:57 +0000[diff] [blame]119
120 .align 7
121IrqA64:
122 mov x0, #IRQ_AARCH64
123 bl plat_report_exception
124 b IrqA64
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]125 check_vector_size IrqA64
Jeenu Viswambharan65f07302014-02-07 15:50:57 +0000[diff] [blame]126
127 .align 7
128FiqA64:
129 mov x0, #FIQ_AARCH64
130 bl plat_report_exception
131 b FiqA64
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]132 check_vector_size FiqA64
Jeenu Viswambharan65f07302014-02-07 15:50:57 +0000[diff] [blame]133
134 .align 7
135SErrorA64:
136 mov x0, #SERROR_AARCH64
137 bl plat_report_exception
138 b SErrorA64
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]139 check_vector_size SErrorA64
Jeenu Viswambharan65f07302014-02-07 15:50:57 +0000[diff] [blame]140
141 /* -----------------------------------------------------
142 * Lower EL using AArch32 : 0x0 - 0x180
143 * -----------------------------------------------------
144 */
145 .align 7
146SynchronousExceptionA32:
147 mov x0, #SYNC_EXCEPTION_AARCH32
148 bl plat_report_exception
149 b SynchronousExceptionA32
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]150 check_vector_size SynchronousExceptionA32
Jeenu Viswambharan65f07302014-02-07 15:50:57 +0000[diff] [blame]151
152 .align 7
153IrqA32:
154 mov x0, #IRQ_AARCH32
155 bl plat_report_exception
156 b IrqA32
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]157 check_vector_size IrqA32
Jeenu Viswambharan65f07302014-02-07 15:50:57 +0000[diff] [blame]158
159 .align 7
160FiqA32:
161 mov x0, #FIQ_AARCH32
162 bl plat_report_exception
163 b FiqA32
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]164 check_vector_size FiqA32
Jeenu Viswambharan65f07302014-02-07 15:50:57 +0000[diff] [blame]165
166 .align 7
167SErrorA32:
168 mov x0, #SERROR_AARCH32
169 bl plat_report_exception
170 b SErrorA32
Jeenu Viswambharana7934d62014-02-07 15:53:18 +0000[diff] [blame]171 check_vector_size SErrorA32