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