/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _H8300_SEGMENT_H #define _H8300_SEGMENT_H /* define constants */ #define USER_DATA (1) #ifndef __USER_DS #define __USER_DS (USER_DATA) #endif #define USER_PROGRAM (2) #define SUPER_DATA (3) #ifndef __KERNEL_DS #define __KERNEL_DS (SUPER_DATA) #endif #define SUPER_PROGRAM (4) #ifndef __ASSEMBLY__ typedef struct { unsigned long seg; } mm_segment_t; #define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) #define USER_DS MAKE_MM_SEG(__USER_DS) #define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS) /* * Get/set the SFC/DFC registers for MOVES instructions */ static inline mm_segment_t get_fs(void) { return USER_DS; } #define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg) #endif /* __ASSEMBLY__ */ #endif /* _H8300_SEGMENT_H */