1 /* SPDX-License-Identifier: GPL-2.0 */ 2 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. 3 4 #ifndef __ASM_CSKY_SEGMENT_H 5 #define __ASM_CSKY_SEGMENT_H 6 7 typedef struct { 8 unsigned long seg; 9 } mm_segment_t; 10 11 #define KERNEL_DS ((mm_segment_t) { 0xFFFFFFFF }) 12 13 #define USER_DS ((mm_segment_t) { 0x80000000UL }) 14 #define get_fs() (current_thread_info()->addr_limit) 15 #define set_fs(x) (current_thread_info()->addr_limit = (x)) 16 #define segment_eq(a, b) ((a).seg == (b).seg) 17 18 #endif /* __ASM_CSKY_SEGMENT_H */ 19