/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_CSKY_SEGMENT_H #define __ASM_CSKY_SEGMENT_H typedef struct { unsigned long seg; } mm_segment_t; #define KERNEL_DS ((mm_segment_t) { 0xFFFFFFFF }) #define USER_DS ((mm_segment_t) { PAGE_OFFSET }) #define get_fs() (current_thread_info()->addr_limit) #define set_fs(x) (current_thread_info()->addr_limit = (x)) #define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg) #endif /* __ASM_CSKY_SEGMENT_H */