Merge branch 'v3.10/topic/configs' into linux-linaro-lsk-v3.10
[firefly-linux-kernel-4.4.55.git] / arch / arm / include / asm / mmu.h
1 #ifndef __ARM_MMU_H
2 #define __ARM_MMU_H
3
4 #ifdef CONFIG_MMU
5
6 typedef struct {
7 #ifdef CONFIG_CPU_HAS_ASID
8         atomic64_t      id;
9 #else
10         int             switch_pending;
11 #endif
12         unsigned int    vmalloc_seq;
13         unsigned long   sigpage;
14 } mm_context_t;
15
16 #ifdef CONFIG_CPU_HAS_ASID
17 #define ASID_BITS       8
18 #define ASID_MASK       ((~0ULL) << ASID_BITS)
19 #define ASID(mm)        ((unsigned int)((mm)->context.id.counter & ~ASID_MASK))
20 #else
21 #define ASID(mm)        (0)
22 #endif
23
24 #else
25
26 /*
27  * From nommu.h:
28  *  Copyright (C) 2002, David McCullough <davidm@snapgear.com>
29  *  modified for 2.6 by Hyok S. Choi <hyok.choi@samsung.com>
30  */
31 typedef struct {
32         unsigned long   end_brk;
33 } mm_context_t;
34
35 #endif
36
37 #endif