| #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 |