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cdcc9708 PM |
1 | #ifndef __ASM_SH_MMU_CONTEXT_32_H |
2 | #define __ASM_SH_MMU_CONTEXT_32_H | |
3 | ||
4 | /* | |
5 | * Destroy context related info for an mm_struct that is about | |
6 | * to be put to rest. | |
7 | */ | |
8 | static inline void destroy_context(struct mm_struct *mm) | |
9 | { | |
10 | /* Do nothing */ | |
11 | } | |
12 | ||
13 | static inline void set_asid(unsigned long asid) | |
14 | { | |
15 | unsigned long __dummy; | |
16 | ||
17 | __asm__ __volatile__ ("mov.l %2, %0\n\t" | |
18 | "and %3, %0\n\t" | |
19 | "or %1, %0\n\t" | |
20 | "mov.l %0, %2" | |
21 | : "=&r" (__dummy) | |
22 | : "r" (asid), "m" (__m(MMU_PTEH)), | |
23 | "r" (0xffffff00)); | |
24 | } | |
25 | ||
26 | static inline unsigned long get_asid(void) | |
27 | { | |
28 | unsigned long asid; | |
29 | ||
30 | __asm__ __volatile__ ("mov.l %1, %0" | |
31 | : "=r" (asid) | |
32 | : "m" (__m(MMU_PTEH))); | |
33 | asid &= MMU_CONTEXT_ASID_MASK; | |
34 | return asid; | |
35 | } | |
36 | ||
37 | /* MMU_TTB is used for optimizing the fault handling. */ | |
38 | static inline void set_TTB(pgd_t *pgd) | |
39 | { | |
40 | ctrl_outl((unsigned long)pgd, MMU_TTB); | |
41 | } | |
42 | ||
43 | static inline pgd_t *get_TTB(void) | |
44 | { | |
45 | return (pgd_t *)ctrl_inl(MMU_TTB); | |
46 | } | |
47 | #endif /* __ASM_SH_MMU_CONTEXT_32_H */ |