| /* 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 |
