segment.h 540 B

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