1 #ifndef _SPARC64_CACHEFLUSH_H
2 #define _SPARC64_CACHEFLUSH_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_range(vma, start, end) \
16 flush_cache_mm((vma)->vm_mm)
17 #define flush_cache_page(vma, page, pfn) \
18 flush_cache_mm((vma)->vm_mm)
21 * On spitfire, the icache doesn't snoop local stores and we don't
22 * use block commit stores (which invalidate icache lines) during
23 * module load, so we need this.
25 extern void flush_icache_range(unsigned long start, unsigned long end);
26 extern void __flush_icache_page(unsigned long);
28 extern void __flush_dcache_page(void *addr, int flush_icache);
29 extern void flush_dcache_page_impl(struct page *page);
31 extern void smp_flush_dcache_page_impl(struct page *page, int cpu);
32 extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
34 #define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page)
35 #define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page)
38 extern void __flush_dcache_range(unsigned long start, unsigned long end);
39 extern void flush_dcache_page(struct page *page);
41 #define flush_icache_page(vma, pg) do { } while(0)
42 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
44 extern void flush_ptrace_access(struct vm_area_struct *, struct page *,
45 unsigned long uaddr, void *kaddr,
46 unsigned long len, int write);
48 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
50 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
51 memcpy(dst, src, len); \
52 flush_ptrace_access(vma, page, vaddr, src, len, 0); \
55 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
57 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
58 memcpy(dst, src, len); \
59 flush_ptrace_access(vma, page, vaddr, dst, len, 1); \
62 #define flush_dcache_mmap_lock(mapping) do { } while (0)
63 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
65 #define flush_cache_vmap(start, end) do { } while (0)
66 #define flush_cache_vunmap(start, end) do { } while (0)
68 #ifdef CONFIG_DEBUG_PAGEALLOC
69 /* internal debugging function */
70 void kernel_map_pages(struct page *page, int numpages, int enable);
73 #endif /* !__ASSEMBLY__ */
75 #endif /* _SPARC64_CACHEFLUSH_H */