5113f6f70
 김현기
kernel add
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
#ifndef __ASM_SH_MMU_CONTEXT_32_H
#define __ASM_SH_MMU_CONTEXT_32_H
/*
* Destroy context related info for an mm_struct that is about
* to be put to rest.
*/
static inline void destroy_context(struct mm_struct *mm)
{
/* Do nothing */
}
#ifdef CONFIG_CPU_HAS_PTEAEX
static inline void set_asid(unsigned long asid)
{
__raw_writel(asid, MMU_PTEAEX);
}
static inline unsigned long get_asid(void)
{
return __raw_readl(MMU_PTEAEX) & MMU_CONTEXT_ASID_MASK;
}
#else
static inline void set_asid(unsigned long asid)
{
unsigned long __dummy;
__asm__ __volatile__ ("mov.l %2, %0
\t"
"and %3, %0
\t"
"or %1, %0
\t"
"mov.l %0, %2"
: "=&r" (__dummy)
: "r" (asid), "m" (__m(MMU_PTEH)),
"r" (0xffffff00));
}
static inline unsigned long get_asid(void)
{
unsigned long asid;
__asm__ __volatile__ ("mov.l %1, %0"
: "=r" (asid)
: "m" (__m(MMU_PTEH)));
asid &= MMU_CONTEXT_ASID_MASK;
return asid;
}
#endif /* CONFIG_CPU_HAS_PTEAEX */
/* MMU_TTB is used for optimizing the fault handling. */
static inline void set_TTB(pgd_t *pgd)
{
__raw_writel((unsigned long)pgd, MMU_TTB);
}
static inline pgd_t *get_TTB(void)
{
return (pgd_t *)__raw_readl(MMU_TTB);
}
#endif /* __ASM_SH_MMU_CONTEXT_32_H */
|