arch/csky/include/asm/segment.h

   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 */