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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/ptrace.h>
12
13#include <linux/interrupt.h>
14
15#define __exception_irq_entry __irq_entry
16
17static inline unsigned long disr_to_esr(u64 disr)
18{
19 unsigned long esr = ESR_ELx_EC_SERROR << ESR_ELx_EC_SHIFT;
20
21 if ((disr & DISR_EL1_IDS) == 0)
22 esr |= (disr & DISR_EL1_ESR_MASK);
23 else
24 esr |= (disr & ESR_ELx_ISS_MASK);
25
26 return esr;
27}
28
29asmlinkage void __noreturn handle_bad_stack(struct pt_regs *regs);
30
31asmlinkage void el1t_64_sync_handler(struct pt_regs *regs);
32asmlinkage void el1t_64_irq_handler(struct pt_regs *regs);
33asmlinkage void el1t_64_fiq_handler(struct pt_regs *regs);
34asmlinkage void el1t_64_error_handler(struct pt_regs *regs);
35
36asmlinkage void el1h_64_sync_handler(struct pt_regs *regs);
37asmlinkage void el1h_64_irq_handler(struct pt_regs *regs);
38asmlinkage void el1h_64_fiq_handler(struct pt_regs *regs);
39asmlinkage void el1h_64_error_handler(struct pt_regs *regs);
40
41asmlinkage void el0t_64_sync_handler(struct pt_regs *regs);
42asmlinkage void el0t_64_irq_handler(struct pt_regs *regs);
43asmlinkage void el0t_64_fiq_handler(struct pt_regs *regs);
44asmlinkage void el0t_64_error_handler(struct pt_regs *regs);
45
46asmlinkage void el0t_32_sync_handler(struct pt_regs *regs);
47asmlinkage void el0t_32_irq_handler(struct pt_regs *regs);
48asmlinkage void el0t_32_fiq_handler(struct pt_regs *regs);
49asmlinkage void el0t_32_error_handler(struct pt_regs *regs);
50
51asmlinkage void call_on_irq_stack(struct pt_regs *regs,
52 void (*func)(struct pt_regs *));
53asmlinkage void asm_exit_to_user_mode(struct pt_regs *regs);
54
55void do_mem_abort(unsigned long far, unsigned long esr, struct pt_regs *regs);
56void do_el0_undef(struct pt_regs *regs, unsigned long esr);
57void do_el1_undef(struct pt_regs *regs, unsigned long esr);
58void do_el0_bti(struct pt_regs *regs);
59void do_el1_bti(struct pt_regs *regs, unsigned long esr);
60void do_el0_gcs(struct pt_regs *regs, unsigned long esr);
61void do_el1_gcs(struct pt_regs *regs, unsigned long esr);
62#ifdef CONFIG_HAVE_HW_BREAKPOINT
63void do_breakpoint(unsigned long esr, struct pt_regs *regs);
64void do_watchpoint(unsigned long addr, unsigned long esr,
65 struct pt_regs *regs);
66#else
67static inline void do_breakpoint(unsigned long esr, struct pt_regs *regs) {}
68static inline void do_watchpoint(unsigned long addr, unsigned long esr,
69 struct pt_regs *regs) {}
70#endif /* CONFIG_HAVE_HW_BREAKPOINT */
71void do_el0_softstep(unsigned long esr, struct pt_regs *regs);
72void do_el1_softstep(unsigned long esr, struct pt_regs *regs);
73void do_el0_brk64(unsigned long esr, struct pt_regs *regs);
74void do_el1_brk64(unsigned long esr, struct pt_regs *regs);
75void do_bkpt32(unsigned long esr, struct pt_regs *regs);
76void do_fpsimd_acc(unsigned long esr, struct pt_regs *regs);
77void do_sve_acc(unsigned long esr, struct pt_regs *regs);
78void do_sme_acc(unsigned long esr, struct pt_regs *regs);
79void do_fpsimd_exc(unsigned long esr, struct pt_regs *regs);
80void do_el0_sys(unsigned long esr, struct pt_regs *regs);
81void do_sp_pc_abort(unsigned long addr, unsigned long esr, struct pt_regs *regs);
82void bad_el0_sync(struct pt_regs *regs, int reason, unsigned long esr);
83void do_el0_cp15(unsigned long esr, struct pt_regs *regs);
84int do_compat_alignment_fixup(unsigned long addr, struct pt_regs *regs);
85void do_el0_svc(struct pt_regs *regs);
86void do_el0_svc_compat(struct pt_regs *regs);
87void do_el0_fpac(struct pt_regs *regs, unsigned long esr);
88void do_el1_fpac(struct pt_regs *regs, unsigned long esr);
89void do_el0_mops(struct pt_regs *regs, unsigned long esr);
90void do_el1_mops(struct pt_regs *regs, unsigned long esr);
91void do_serror(struct pt_regs *regs, unsigned long esr);
92
93void __noreturn panic_bad_stack(struct pt_regs *regs, unsigned long esr, unsigned long far);
94#endif /* __ASM_EXCEPTION_H */