1#ifndef _ALPHA_CACHEFLUSH_H
2#define _ALPHA_CACHEFLUSH_H
3
4#include <linux/mm.h>
5
6
7#define flush_cache_all() do { } while (0)
8#define flush_cache_mm(mm) do { } while (0)
9#define flush_cache_dup_mm(mm) do { } while (0)
10#define flush_cache_range(vma, start, end) do { } while (0)
11#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
12#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
13#define flush_dcache_page(page) do { } while (0)
14#define flush_dcache_mmap_lock(mapping) do { } while (0)
15#define flush_dcache_mmap_unlock(mapping) do { } while (0)
16#define flush_cache_vmap(start, end) do { } while (0)
17#define flush_cache_vunmap(start, end) do { } while (0)
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30
31#ifndef CONFIG_SMP
32#define flush_icache_range(start, end) imb()
33#else
34#define flush_icache_range(start, end) smp_imb()
35extern void smp_imb(void);
36#endif
37
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43
44
45#ifndef CONFIG_SMP
46#include <linux/sched.h>
47
48extern void __load_new_mm_context(struct mm_struct *);
49static inline void
50flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
51 unsigned long addr, int len)
52{
53 if (vma->vm_flags & VM_EXEC) {
54 struct mm_struct *mm = vma->vm_mm;
55 if (current->active_mm == mm)
56 __load_new_mm_context(mm);
57 else
58 mm->context[smp_processor_id()] = 0;
59 }
60}
61#else
62extern void flush_icache_user_range(struct vm_area_struct *vma,
63 struct page *page, unsigned long addr, int len);
64#endif
65
66
67#define flush_icache_page(vma, page) \
68 flush_icache_user_range((vma), (page), 0, 0)
69
70#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
71do { memcpy(dst, src, len); \
72 flush_icache_user_range(vma, page, vaddr, len); \
73} while (0)
74#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
75 memcpy(dst, src, len)
76
77#endif
78