projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 LT |
2 | #ifndef __ARM_MMU_H |
| 3 | #define __ARM_MMU_H | |
| 4 | ||
| 002547b4 RK |
5 | #ifdef CONFIG_MMU |
| 6 | ||
| 1da177e4 | 7 | typedef struct { |
| 516793c6 | 8 | #ifdef CONFIG_CPU_HAS_ASID |
| 8a4e3a9e | 9 | atomic64_t id; |
| bdae73cd CM |
10 | #else |
| 11 | int switch_pending; | |
| 1da177e4 | 12 | #endif |
| 8a4e3a9e | 13 | unsigned int vmalloc_seq; |
| 48be69a0 | 14 | unsigned long sigpage; |
| 1713ce7c NL |
15 | #ifdef CONFIG_VDSO |
| 16 | unsigned long vdso; | |
| 17 | #endif | |
| 1da177e4 LT |
18 | } mm_context_t; |
| 19 | ||
| 516793c6 | 20 | #ifdef CONFIG_CPU_HAS_ASID |
| b5466f87 WD |
21 | #define ASID_BITS 8 |
| 22 | #define ASID_MASK ((~0ULL) << ASID_BITS) | |
| a1af3474 | 23 | #define ASID(mm) ((unsigned int)((mm)->context.id.counter & ~ASID_MASK)) |
| 1da177e4 LT |
24 | #else |
| 25 | #define ASID(mm) (0) | |
| 26 | #endif | |
| 27 | ||
| 002547b4 RK |
28 | #else |
| 29 | ||
| 30 | /* | |
| 31 | * From nommu.h: | |
| 32 | * Copyright (C) 2002, David McCullough <davidm@snapgear.com> | |
| 33 | * modified for 2.6 by Hyok S. Choi <hyok.choi@samsung.com> | |
| 34 | */ | |
| 35 | typedef struct { | |
| 8a4e3a9e | 36 | unsigned long end_brk; |
| 002547b4 RK |
37 | } mm_context_t; |
| 38 | ||
| 39 | #endif | |
| 40 | ||
| 1da177e4 | 41 | #endif |