| The Android Open Source Project | 4e468ed | 2008-12-17 18:03:48 -0800 | [diff] [blame^] | 1 | /**************************************************************************** |
| 2 | **************************************************************************** |
| 3 | *** |
| 4 | *** This header was automatically generated from a Linux kernel header |
| 5 | *** of the same name, to make information necessary for userspace to |
| 6 | *** call into the kernel available to libc. It contains only constants, |
| 7 | *** structures, and macros generated from the original header, and thus, |
| 8 | *** contains no copyrightable information. |
| 9 | *** |
| 10 | **************************************************************************** |
| 11 | ****************************************************************************/ |
| 12 | #ifndef _ASM_SEGMENT_H |
| 13 | #define _ASM_SEGMENT_H |
| 14 | |
| 15 | #define GDT_ENTRY_TLS_ENTRIES 3 |
| 16 | #define GDT_ENTRY_TLS_MIN 6 |
| 17 | #define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1) |
| 18 | |
| 19 | #define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8) |
| 20 | |
| 21 | #define GDT_ENTRY_DEFAULT_USER_CS 14 |
| 22 | #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS * 8 + 3) |
| 23 | |
| 24 | #define GDT_ENTRY_DEFAULT_USER_DS 15 |
| 25 | #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS * 8 + 3) |
| 26 | |
| 27 | #define GDT_ENTRY_KERNEL_BASE 12 |
| 28 | |
| 29 | #define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE + 0) |
| 30 | #define __KERNEL_CS (GDT_ENTRY_KERNEL_CS * 8) |
| 31 | |
| 32 | #define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE + 1) |
| 33 | #define __KERNEL_DS (GDT_ENTRY_KERNEL_DS * 8) |
| 34 | |
| 35 | #define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE + 4) |
| 36 | #define GDT_ENTRY_LDT (GDT_ENTRY_KERNEL_BASE + 5) |
| 37 | |
| 38 | #define GDT_ENTRY_PNPBIOS_BASE (GDT_ENTRY_KERNEL_BASE + 6) |
| 39 | #define GDT_ENTRY_APMBIOS_BASE (GDT_ENTRY_KERNEL_BASE + 11) |
| 40 | |
| 41 | #define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14) |
| 42 | #define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8) |
| 43 | |
| 44 | #define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15) |
| 45 | #define __KERNEL_PERCPU 0 |
| 46 | |
| 47 | #define GDT_ENTRY_DOUBLEFAULT_TSS 31 |
| 48 | |
| 49 | #define GDT_ENTRIES 32 |
| 50 | #define GDT_SIZE (GDT_ENTRIES * 8) |
| 51 | |
| 52 | #define GDT_ENTRY_BOOT_CS 2 |
| 53 | #define __BOOT_CS (GDT_ENTRY_BOOT_CS * 8) |
| 54 | |
| 55 | #define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1) |
| 56 | #define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8) |
| 57 | |
| 58 | #define GDT_ENTRY_PNPBIOS_CS32 (GDT_ENTRY_PNPBIOS_BASE + 0) |
| 59 | #define GDT_ENTRY_PNPBIOS_CS16 (GDT_ENTRY_PNPBIOS_BASE + 1) |
| 60 | #define GDT_ENTRY_PNPBIOS_DS (GDT_ENTRY_PNPBIOS_BASE + 2) |
| 61 | #define GDT_ENTRY_PNPBIOS_TS1 (GDT_ENTRY_PNPBIOS_BASE + 3) |
| 62 | #define GDT_ENTRY_PNPBIOS_TS2 (GDT_ENTRY_PNPBIOS_BASE + 4) |
| 63 | |
| 64 | #define PNP_CS32 (GDT_ENTRY_PNPBIOS_CS32 * 8) |
| 65 | #define PNP_CS16 (GDT_ENTRY_PNPBIOS_CS16 * 8) |
| 66 | #define PNP_DS (GDT_ENTRY_PNPBIOS_DS * 8) |
| 67 | #define PNP_TS1 (GDT_ENTRY_PNPBIOS_TS1 * 8) |
| 68 | #define PNP_TS2 (GDT_ENTRY_PNPBIOS_TS2 * 8) |
| 69 | |
| 70 | #define IDT_ENTRIES 256 |
| 71 | |
| 72 | #define SEGMENT_RPL_MASK 0x3 |
| 73 | |
| 74 | #define SEGMENT_TI_MASK 0x4 |
| 75 | |
| 76 | #define USER_RPL 0x3 |
| 77 | |
| 78 | #define SEGMENT_LDT 0x4 |
| 79 | #define SEGMENT_GDT 0x0 |
| 80 | |
| 81 | #define get_kernel_rpl() 0 |
| 82 | |
| 83 | #define SEGMENT_IS_KERNEL_CODE(x) (((x) & 0xfc) == GDT_ENTRY_KERNEL_CS * 8) |
| 84 | |
| 85 | #define SEGMENT_IS_FLAT_CODE(x) (((x) & 0xec) == GDT_ENTRY_KERNEL_CS * 8) |
| 86 | |
| 87 | #define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) |
| 88 | |
| 89 | #endif |