1 #ifndef _SPARC64_CACHEFLUSH_H
2 #define _SPARC64_CACHEFLUSH_H
10 /* Cache flush operations. */
13 #define flushi(addr) __asm__ __volatile__ ("flush %0" : : "r" (addr) : "memory")
14 #define flushw_all() __asm__ __volatile__("flushw")
16 extern void __flushw_user(void);
17 #define flushw_user() __flushw_user()
19 #define flush_user_windows flushw_user
20 #define flush_register_windows flushw_all
22 /* These are the same regardless of whether this is an SMP kernel or not. */
23 #define flush_cache_mm(__mm) \
24 do { if ((__mm) == current->mm) flushw_user(); } while(0)
25 #define flush_cache_dup_mm(mm) flush_cache_mm(mm)
26 #define flush_cache_range(vma, start, end) \
27 flush_cache_mm((vma)->vm_mm)
28 #define flush_cache_page(vma, page, pfn) \
29 flush_cache_mm((vma)->vm_mm)
32 * On spitfire, the icache doesn't snoop local stores and we don't
33 * use block commit stores (which invalidate icache lines) during
34 * module load, so we need this.
36 extern void flush_icache_range(unsigned long start, unsigned long end);
37 extern void __flush_icache_page(unsigned long);
39 extern void __flush_dcache_page(void *addr, int flush_icache);
40 extern void flush_dcache_page_impl(struct page *page);
42 extern void smp_flush_dcache_page_impl(struct page *page, int cpu);
43 extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page);
45 #define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page)
46 #define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page)
49 extern void __flush_dcache_range(unsigned long start, unsigned long end);
50 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
51 extern void flush_dcache_page(struct page *page);
53 #define flush_icache_page(vma, pg) do { } while(0)
54 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
56 extern void flush_ptrace_access(struct vm_area_struct *, struct page *,
57 unsigned long uaddr, void *kaddr,
58 unsigned long len, int write);
60 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
62 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
63 memcpy(dst, src, len); \
64 flush_ptrace_access(vma, page, vaddr, src, len, 0); \
67 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
69 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
70 memcpy(dst, src, len); \
71 flush_ptrace_access(vma, page, vaddr, dst, len, 1); \
74 #define flush_dcache_mmap_lock(mapping) do { } while (0)
75 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
77 #define flush_cache_vmap(start, end) do { } while (0)
78 #define flush_cache_vunmap(start, end) do { } while (0)
80 #ifdef CONFIG_DEBUG_PAGEALLOC
81 /* internal debugging function */
82 void kernel_map_pages(struct page *page, int numpages, int enable);
85 #endif /* !__ASSEMBLY__ */
87 #endif /* _SPARC64_CACHEFLUSH_H */