Commit | Line | Data |
---|---|---|
60ffc30d CM |
1 | /* |
2 | * Based on arch/arm/include/asm/traps.h | |
3 | * | |
4 | * Copyright (C) 2012 ARM Ltd. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | #ifndef __ASM_TRAP_H | |
19 | #define __ASM_TRAP_H | |
20 | ||
9b79f52d | 21 | #include <linux/list.h> |
ee78fdc7 | 22 | #include <asm/sections.h> |
9b79f52d PA |
23 | |
24 | struct pt_regs; | |
25 | ||
26 | struct undef_hook { | |
27 | struct list_head node; | |
28 | u32 instr_mask; | |
29 | u32 instr_val; | |
30 | u64 pstate_mask; | |
31 | u64 pstate_val; | |
32 | int (*fn)(struct pt_regs *regs, u32 instr); | |
33 | }; | |
34 | ||
35 | void register_undef_hook(struct undef_hook *hook); | |
36 | void unregister_undef_hook(struct undef_hook *hook); | |
37 | ||
390bf177 AP |
38 | void arm64_notify_segfault(struct pt_regs *regs, unsigned long addr); |
39 | ||
9a5ad7d0 JL |
40 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER |
41 | static inline int __in_irqentry_text(unsigned long ptr) | |
42 | { | |
9a5ad7d0 JL |
43 | return ptr >= (unsigned long)&__irqentry_text_start && |
44 | ptr < (unsigned long)&__irqentry_text_end; | |
45 | } | |
46 | #else | |
47 | static inline int __in_irqentry_text(unsigned long ptr) | |
48 | { | |
49 | return 0; | |
50 | } | |
51 | #endif | |
52 | ||
60ffc30d CM |
53 | static inline int in_exception_text(unsigned long ptr) |
54 | { | |
9a5ad7d0 JL |
55 | int in; |
56 | ||
57 | in = ptr >= (unsigned long)&__exception_text_start && | |
58 | ptr < (unsigned long)&__exception_text_end; | |
60ffc30d | 59 | |
9a5ad7d0 | 60 | return in ? : __in_irqentry_text(ptr); |
60ffc30d CM |
61 | } |
62 | ||
63 | #endif |