| /* |
| * Xtensa hardware breakpoints/watchpoints handling functions |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 2016 Cadence Design Systems Inc. |
| */ |
| |
| #ifndef __ASM_XTENSA_HW_BREAKPOINT_H |
| #define __ASM_XTENSA_HW_BREAKPOINT_H |
| |
| #ifdef CONFIG_HAVE_HW_BREAKPOINT |
| |
| #include <linux/kdebug.h> |
| #include <linux/types.h> |
| #include <uapi/linux/hw_breakpoint.h> |
| |
| /* Breakpoint */ |
| #define XTENSA_BREAKPOINT_EXECUTE 0 |
| |
| /* Watchpoints */ |
| #define XTENSA_BREAKPOINT_LOAD 1 |
| #define XTENSA_BREAKPOINT_STORE 2 |
| |
| struct arch_hw_breakpoint { |
| unsigned long address; |
| u16 len; |
| u16 type; |
| }; |
| |
| struct perf_event; |
| struct pt_regs; |
| struct task_struct; |
| |
| int hw_breakpoint_slots(int type); |
| int arch_check_bp_in_kernelspace(struct perf_event *bp); |
| int arch_validate_hwbkpt_settings(struct perf_event *bp); |
| int hw_breakpoint_exceptions_notify(struct notifier_block *unused, |
| unsigned long val, void *data); |
| |
| int arch_install_hw_breakpoint(struct perf_event *bp); |
| void arch_uninstall_hw_breakpoint(struct perf_event *bp); |
| void hw_breakpoint_pmu_read(struct perf_event *bp); |
| int check_hw_breakpoint(struct pt_regs *regs); |
| void clear_ptrace_hw_breakpoint(struct task_struct *tsk); |
| |
| #else |
| |
| struct task_struct; |
| |
| static inline void clear_ptrace_hw_breakpoint(struct task_struct *tsk) |
| { |
| } |
| |
| #endif /* CONFIG_HAVE_HW_BREAKPOINT */ |
| #endif /* __ASM_XTENSA_HW_BREAKPOINT_H */ |
