| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __UM_SEGMENT_H |
| 3 | #define __UM_SEGMENT_H |
| 4 | |
| 5 | extern int host_gdt_entry_tls_min; |
| 6 | |
| 7 | #define GDT_ENTRY_TLS_ENTRIES 3 |
| 8 | #define GDT_ENTRY_TLS_MIN host_gdt_entry_tls_min |
| 9 | #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1) |
| 10 | |
| 11 | typedef struct { |
| 12 | unsigned long seg; |
| 13 | } mm_segment_t; |
| 14 | |
| 15 | #define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) |
| 16 | #define KERNEL_DS MAKE_MM_SEG(~0UL) |
| 17 | #define USER_DS MAKE_MM_SEG(TASK_SIZE) |
| 18 | |
| 19 | #endif |