1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Based on arch/arm/include/asm/exception.h
4 *
5 * Copyright (C) 2012 ARM Ltd.
6 */
7 #ifndef __ASM_EXCEPTION_H
8 #define __ASM_EXCEPTION_H
9
10 #include <asm/esr.h>
11 #include <asm/kprobes.h>
12 #include <asm/ptrace.h>
13
14 #include <linux/interrupt.h>
15
16 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
17 #define __exception_irq_entry __irq_entry
18 #else
19 #define __exception_irq_entry __kprobes
20 #endif
21
disr_to_esr(u64 disr)22 static inline u32 disr_to_esr(u64 disr)
23 {
24 unsigned int esr = ESR_ELx_EC_SERROR << ESR_ELx_EC_SHIFT;
25
26 if ((disr & DISR_EL1_IDS) == 0)
27 esr |= (disr & DISR_EL1_ESR_MASK);
28 else
29 esr |= (disr & ESR_ELx_ISS_MASK);
30
31 return esr;
32 }
33
34 asmlinkage void handle_bad_stack(struct pt_regs *regs);
35
36 asmlinkage void el1t_64_sync_handler(struct pt_regs *regs);
37 asmlinkage void el1t_64_irq_handler(struct pt_regs *regs);
38 asmlinkage void el1t_64_fiq_handler(struct pt_regs *regs);
39 asmlinkage void el1t_64_error_handler(struct pt_regs *regs);
40
41 asmlinkage void el1h_64_sync_handler(struct pt_regs *regs);
42 asmlinkage void el1h_64_irq_handler(struct pt_regs *regs);
43 asmlinkage void el1h_64_fiq_handler(struct pt_regs *regs);
44 asmlinkage void el1h_64_error_handler(struct pt_regs *regs);
45
46 asmlinkage void el0t_64_sync_handler(struct pt_regs *regs);
47 asmlinkage void el0t_64_irq_handler(struct pt_regs *regs);
48 asmlinkage void el0t_64_fiq_handler(struct pt_regs *regs);
49 asmlinkage void el0t_64_error_handler(struct pt_regs *regs);
50
51 asmlinkage void el0t_32_sync_handler(struct pt_regs *regs);
52 asmlinkage void el0t_32_irq_handler(struct pt_regs *regs);
53 asmlinkage void el0t_32_fiq_handler(struct pt_regs *regs);
54 asmlinkage void el0t_32_error_handler(struct pt_regs *regs);
55
56 asmlinkage void call_on_irq_stack(struct pt_regs *regs,
57 void (*func)(struct pt_regs *));
58 asmlinkage void asm_exit_to_user_mode(struct pt_regs *regs);
59
60 void do_mem_abort(unsigned long far, unsigned int esr, struct pt_regs *regs);
61 void do_undefinstr(struct pt_regs *regs);
62 void do_bti(struct pt_regs *regs);
63 void do_debug_exception(unsigned long addr_if_watchpoint, unsigned int esr,
64 struct pt_regs *regs);
65 void do_fpsimd_acc(unsigned int esr, struct pt_regs *regs);
66 void do_sve_acc(unsigned int esr, struct pt_regs *regs);
67 void do_fpsimd_exc(unsigned int esr, struct pt_regs *regs);
68 void do_sysinstr(unsigned int esr, struct pt_regs *regs);
69 void do_sp_pc_abort(unsigned long addr, unsigned int esr, struct pt_regs *regs);
70 void bad_el0_sync(struct pt_regs *regs, int reason, unsigned int esr);
71 void do_cp15instr(unsigned int esr, struct pt_regs *regs);
72 void do_el0_svc(struct pt_regs *regs);
73 void do_el0_svc_compat(struct pt_regs *regs);
74 void do_ptrauth_fault(struct pt_regs *regs, unsigned int esr);
75 void do_serror(struct pt_regs *regs, unsigned int esr);
76 void do_notify_resume(struct pt_regs *regs, unsigned long thread_flags);
77
78 void panic_bad_stack(struct pt_regs *regs, unsigned int esr, unsigned long far);
79 #endif /* __ASM_EXCEPTION_H */
80
