uaccess.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * User memory access support for Hexagon
 4 *
 5 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
 6 */
 7
 8#ifndef _ASM_UACCESS_H
 9#define _ASM_UACCESS_H
10/*
11 * User space memory access functions
12 */
13#include <asm/sections.h>
14
15/*
16 * When a kernel-mode page fault is taken, the faulting instruction
17 * address is checked against a table of exception_table_entries.
18 * Each entry is a tuple of the address of an instruction that may
19 * be authorized to fault, and the address at which execution should
20 * be resumed instead of the faulting instruction, so as to effect
21 * a workaround.
22 */
23
24/*  Assembly somewhat optimized copy routines  */
25unsigned long raw_copy_from_user(void *to, const void __user *from,
26				     unsigned long n);
27unsigned long raw_copy_to_user(void __user *to, const void *from,
28				   unsigned long n);
29#define INLINE_COPY_FROM_USER
30#define INLINE_COPY_TO_USER
31
32__kernel_size_t __clear_user_hexagon(void __user *dest, unsigned long count);
33#define __clear_user(a, s) __clear_user_hexagon((a), (s))
34
35#include <asm-generic/uaccess.h>
36
37
38#endif