tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __ARM_MMU_H
2#define __ARM_MMU_H
3
4#ifdef CONFIG_MMU
5
6typedef 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 */
31typedef struct {
32 unsigned long end_brk;
33} mm_context_t;
34
35#endif
36
37#endif