Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef _SPARC64_CACHEFLUSH_H
2#define _SPARC64_CACHEFLUSH_H
3
4#include <linux/config.h>
5#include <asm/page.h>
6
7#ifndef __ASSEMBLY__
8
9#include <linux/mm.h>
10
11/* Cache flush operations. */
12
13/* These are the same regardless of whether this is an SMP kernel or not. */
14#define flush_cache_mm(__mm) \
15 do { if ((__mm) == current->mm) flushw_user(); } while(0)
16#define flush_cache_range(vma, start, end) \
17 flush_cache_mm((vma)->vm_mm)
18#define flush_cache_page(vma, page, pfn) \
19 flush_cache_mm((vma)->vm_mm)
20
21/*
22 * On spitfire, the icache doesn't snoop local stores and we don't
23 * use block commit stores (which invalidate icache lines) during
24 * module load, so we need this.
25 */
26extern void flush_icache_range(unsigned long start, unsigned long end);
27extern void __flush_icache_page(unsigned long);
28
29extern void __flush_dcache_page(void *addr, int flush_icache);
30extern void flush_dcache_page_impl(struct page *page);
31#ifdef CONFIG_SMP
32extern void smp_flush_dcache_page_impl(struct page *page, int cpu);
33extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
34#else
35#define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page)
36#define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page)
37#endif
38
39extern void __flush_dcache_range(unsigned long start, unsigned long end);
40extern void flush_dcache_page(struct page *page);
41
42#define flush_icache_page(vma, pg) do { } while(0)
43#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
44
45extern void flush_ptrace_access(struct vm_area_struct *, struct page *,
46 unsigned long uaddr, void *kaddr,
47 unsigned long len, int write);
48
49#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
50 do { \
51 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
52 memcpy(dst, src, len); \
53 flush_ptrace_access(vma, page, vaddr, src, len, 0); \
54 } while (0)
55
56#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
57 do { \
58 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
59 memcpy(dst, src, len); \
60 flush_ptrace_access(vma, page, vaddr, dst, len, 1); \
61 } while (0)
62
63#define flush_dcache_mmap_lock(mapping) do { } while (0)
64#define flush_dcache_mmap_unlock(mapping) do { } while (0)
65
66#define flush_cache_vmap(start, end) do { } while (0)
67#define flush_cache_vunmap(start, end) do { } while (0)
68
69#ifdef CONFIG_DEBUG_PAGEALLOC
70/* internal debugging function */
71void kernel_map_pages(struct page *page, int numpages, int enable);
72#endif
73
74#endif /* !__ASSEMBLY__ */
75
76#endif /* _SPARC64_CACHEFLUSH_H */