12dd0e8d2SSandeepa Prabhu /* 22dd0e8d2SSandeepa Prabhu * arch/arm64/kernel/probes/decode-insn.h 32dd0e8d2SSandeepa Prabhu * 42dd0e8d2SSandeepa Prabhu * Copyright (C) 2013 Linaro Limited. 52dd0e8d2SSandeepa Prabhu * 62dd0e8d2SSandeepa Prabhu * This program is free software; you can redistribute it and/or modify 72dd0e8d2SSandeepa Prabhu * it under the terms of the GNU General Public License version 2 as 82dd0e8d2SSandeepa Prabhu * published by the Free Software Foundation. 92dd0e8d2SSandeepa Prabhu * 102dd0e8d2SSandeepa Prabhu * This program is distributed in the hope that it will be useful, 112dd0e8d2SSandeepa Prabhu * but WITHOUT ANY WARRANTY; without even the implied warranty of 122dd0e8d2SSandeepa Prabhu * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 132dd0e8d2SSandeepa Prabhu * General Public License for more details. 142dd0e8d2SSandeepa Prabhu */ 152dd0e8d2SSandeepa Prabhu 162dd0e8d2SSandeepa Prabhu #ifndef _ARM_KERNEL_KPROBES_ARM64_H 172dd0e8d2SSandeepa Prabhu #define _ARM_KERNEL_KPROBES_ARM64_H 182dd0e8d2SSandeepa Prabhu 19*7d134b2cSLuis R. Rodriguez #include <asm/kprobes.h> 20*7d134b2cSLuis R. Rodriguez 212dd0e8d2SSandeepa Prabhu /* 222dd0e8d2SSandeepa Prabhu * ARM strongly recommends a limit of 128 bytes between LoadExcl and 232dd0e8d2SSandeepa Prabhu * StoreExcl instructions in a single thread of execution. So keep the 242dd0e8d2SSandeepa Prabhu * max atomic context size as 32. 252dd0e8d2SSandeepa Prabhu */ 262dd0e8d2SSandeepa Prabhu #define MAX_ATOMIC_CONTEXT_SIZE (128 / sizeof(kprobe_opcode_t)) 272dd0e8d2SSandeepa Prabhu 28c2249707SPratyush Anand enum probe_insn { 292dd0e8d2SSandeepa Prabhu INSN_REJECTED, 3039a67d49SSandeepa Prabhu INSN_GOOD_NO_SLOT, 312dd0e8d2SSandeepa Prabhu INSN_GOOD, 322dd0e8d2SSandeepa Prabhu }; 332dd0e8d2SSandeepa Prabhu 34c2249707SPratyush Anand #ifdef CONFIG_KPROBES 35c2249707SPratyush Anand enum probe_insn __kprobes 362dd0e8d2SSandeepa Prabhu arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi); 37c2249707SPratyush Anand #endif 38c2249707SPratyush Anand enum probe_insn __kprobes 39c2249707SPratyush Anand arm_probe_decode_insn(probe_opcode_t insn, struct arch_probe_insn *asi); 402dd0e8d2SSandeepa Prabhu 412dd0e8d2SSandeepa Prabhu #endif /* _ARM_KERNEL_KPROBES_ARM64_H */ 42