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/*
 * 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 */

Filemanager

Name Type Size Permission Actions
Kbuild File 685 B 0644
asm-offsets.h File 35 B 0644
asm-uaccess.h File 4.11 KB 0644
asmmacro.h File 2.76 KB 0644
atomic.h File 7.38 KB 0644
barrier.h File 542 B 0644
bitops.h File 5.08 KB 0644
bootparam.h File 1.37 KB 0644
bugs.h File 451 B 0644
cache.h File 969 B 0644
cacheasm.h File 3.77 KB 0644
cacheflush.h File 5.76 KB 0644
checksum.h File 6 KB 0644
cmpxchg.h File 3.9 KB 0644
coprocessor.h File 5.05 KB 0644
current.h File 675 B 0644
delay.h File 1.63 KB 0644
dma-mapping.h File 855 B 0644
dma.h File 1.79 KB 0644
elf.h File 5.75 KB 0644
fixmap.h File 2.5 KB 0644
flat.h File 686 B 0644
ftrace.h File 979 B 0644
futex.h File 2.59 KB 0644
highmem.h File 2.33 KB 0644
hw_breakpoint.h File 1.45 KB 0644
hw_irq.h File 320 B 0644
initialize_mmu.h File 4.58 KB 0644
io.h File 2.09 KB 0644
irq.h File 1.46 KB 0644
irqflags.h File 1.99 KB 0644
kmem_layout.h File 2.07 KB 0644
mmu.h File 462 B 0644
mmu_context.h File 3.62 KB 0644
module.h File 525 B 0644
mxregs.h File 1.3 KB 0644
nommu_context.h File 602 B 0644
page.h File 5.69 KB 0644
pci-bridge.h File 2.16 KB 0644
pci.h File 1.37 KB 0644
perf_event.h File 108 B 0644
pgalloc.h File 1.84 KB 0644
pgtable.h File 14.89 KB 0644
platform.h File 1.75 KB 0644
processor.h File 7.44 KB 0644
ptrace.h File 3.74 KB 0644
regs.h File 3.87 KB 0644
segment.h File 376 B 0644
serial.h File 443 B 0644
shmparam.h File 561 B 0644
signal.h File 502 B 0644
smp.h File 967 B 0644
spinlock.h File 4.6 KB 0644
spinlock_types.h File 412 B 0644
stacktrace.h File 1.13 KB 0644
string.h File 2.65 KB 0644
switch_to.h File 601 B 0644
syscall.h File 982 B 0644
sysmem.h File 426 B 0644
thread_info.h File 3.62 KB 0644
timex.h File 1.79 KB 0644
tlb.h File 1.1 KB 0644
tlbflush.h File 5.53 KB 0644
traps.h File 1.87 KB 0644
types.h File 501 B 0644
uaccess.h File 8.67 KB 0644
ucontext.h File 540 B 0644
unaligned.h File 864 B 0644
unistd.h File 639 B 0644
user.h File 507 B 0644
vectors.h File 4.05 KB 0644
vga.h File 434 B 0644