1 #ifndef _SPARC64_CACHEFLUSH_H
2 #define _SPARC64_CACHEFLUSH_H
4 #include <linux/config.h>
7 /* Flushing for D-cache alias handling is only needed if
8 * the page size is smaller than 16K.
11 #define DCACHE_ALIASING_POSSIBLE
18 /* Cache flush operations. */
20 /* These are the same regardless of whether this is an SMP kernel or not. */
21 #define flush_cache_mm(__mm) \
22 do { if ((__mm) == current->mm) flushw_user(); } while(0)
23 #define flush_cache_range(vma, start, end) \
24 flush_cache_mm((vma)->vm_mm)
25 #define flush_cache_page(vma, page, pfn) \
26 flush_cache_mm((vma)->vm_mm)
29 * On spitfire, the icache doesn't snoop local stores and we don't
30 * use block commit stores (which invalidate icache lines) during
31 * module load, so we need this.
33 extern void flush_icache_range(unsigned long start, unsigned long end);
34 extern void __flush_icache_page(unsigned long);
36 extern void __flush_dcache_page(void *addr, int flush_icache);
37 extern void flush_dcache_page_impl(struct page *page);
39 extern void smp_flush_dcache_page_impl(struct page *page, int cpu);
40 extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
42 #define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page)
43 #define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page)
46 extern void __flush_dcache_range(unsigned long start, unsigned long end);
47 extern void flush_dcache_page(struct page *page);
49 #define flush_icache_page(vma, pg) do { } while(0)
50 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
52 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
54 flush_cache_page(vma, vaddr, page_to_pfn(page));\
55 memcpy(dst, src, len); \
58 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
60 flush_cache_page(vma, vaddr, page_to_pfn(page));\
61 memcpy(dst, src, len); \
64 #define flush_dcache_mmap_lock(mapping) do { } while (0)
65 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
67 #define flush_cache_vmap(start, end) do { } while (0)
68 #define flush_cache_vunmap(start, end) do { } while (0)
70 #endif /* !__ASSEMBLY__ */
72 #endif /* _SPARC64_CACHEFLUSH_H */