1#ifndef __UM_SEGMENT_H
2#define __UM_SEGMENT_H
3
4extern int host_gdt_entry_tls_min;
5
6#define GDT_ENTRY_TLS_ENTRIES 3
7#define GDT_ENTRY_TLS_MIN host_gdt_entry_tls_min
8#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
9
10typedef struct {
11	unsigned long seg;
12} mm_segment_t;
13
14#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })
15#define KERNEL_DS	MAKE_MM_SEG(~0UL)
16#define USER_DS		MAKE_MM_SEG(TASK_SIZE)
17
18#endif
19