fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-sparc64 / cacheflush.h
blob122e4058dd9ec745ecc3645c402cc1fd0c674dae
1 #ifndef _SPARC64_CACHEFLUSH_H
2 #define _SPARC64_CACHEFLUSH_H
4 #include <asm/page.h>
6 #ifndef __ASSEMBLY__
8 #include <linux/mm.h>
10 /* Cache flush operations. */
12 /* These are the same regardless of whether this is an SMP kernel or not. */
13 #define flush_cache_mm(__mm) \
14 do { if ((__mm) == current->mm) flushw_user(); } while(0)
15 #define flush_cache_dup_mm(mm) flush_cache_mm(mm)
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)
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.
26 extern void flush_icache_range(unsigned long start, unsigned long end);
27 extern void __flush_icache_page(unsigned long);
29 extern void __flush_dcache_page(void *addr, int flush_icache);
30 extern void flush_dcache_page_impl(struct page *page);
31 #ifdef CONFIG_SMP
32 extern void smp_flush_dcache_page_impl(struct page *page, int cpu);
33 extern 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
39 extern void __flush_dcache_range(unsigned long start, unsigned long end);
40 extern void flush_dcache_page(struct page *page);
42 #define flush_icache_page(vma, pg) do { } while(0)
43 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
45 extern void flush_ptrace_access(struct vm_area_struct *, struct page *,
46 unsigned long uaddr, void *kaddr,
47 unsigned long len, int write);
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)
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)
63 #define flush_dcache_mmap_lock(mapping) do { } while (0)
64 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
66 #define flush_cache_vmap(start, end) do { } while (0)
67 #define flush_cache_vunmap(start, end) do { } while (0)
69 #ifdef CONFIG_DEBUG_PAGEALLOC
70 /* internal debugging function */
71 void kernel_map_pages(struct page *page, int numpages, int enable);
72 #endif
74 #endif /* !__ASSEMBLY__ */
76 #endif /* _SPARC64_CACHEFLUSH_H */