summaryrefslogtreecommitdiff
path: root/arch/x86/um/asm/segment.h
blob: 41dd5e1f3cd705b7c70f08d50efb2c67811b4a62 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
#ifndef __UM_SEGMENT_H
#define __UM_SEGMENT_H

extern int host_gdt_entry_tls_min;

#define GDT_ENTRY_TLS_ENTRIES 3
#define GDT_ENTRY_TLS_MIN host_gdt_entry_tls_min
#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)

typedef struct {
	unsigned long seg;
} mm_segment_t;

#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })
#define KERNEL_DS	MAKE_MM_SEG(~0UL)
#define USER_DS		MAKE_MM_SEG(TASK_SIZE)

#endif