1 #ifndef _SPARC64_CACHEFLUSH_H 2 #define _SPARC64_CACHEFLUSH_H 3 4 #include <asm/page.h> 5 6 #ifndef __ASSEMBLY__ 7 8 #include <linux/mm.h> 9 10 /* Cache flush operations. */ 11 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) 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 */ 26 extern void flush_icache_range(unsigned long start, unsigned long end); 27 extern void __flush_icache_page(unsigned long); 28 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 38 39 extern void __flush_dcache_range(unsigned long start, unsigned long end); 40 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 41 extern void flush_dcache_page(struct page *page); 42 43 #define flush_icache_page(vma, pg) do { } while(0) 44 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) 45 46 extern void flush_ptrace_access(struct vm_area_struct *, struct page *, 47 unsigned long uaddr, void *kaddr, 48 unsigned long len, int write); 49 50 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ 51 do { \ 52 flush_cache_page(vma, vaddr, page_to_pfn(page)); \ 53 memcpy(dst, src, len); \ 54 flush_ptrace_access(vma, page, vaddr, src, len, 0); \ 55 } while (0) 56 57 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ 58 do { \ 59 flush_cache_page(vma, vaddr, page_to_pfn(page)); \ 60 memcpy(dst, src, len); \ 61 flush_ptrace_access(vma, page, vaddr, dst, len, 1); \ 62 } while (0) 63 64 #define flush_dcache_mmap_lock(mapping) do { } while (0) 65 #define flush_dcache_mmap_unlock(mapping) do { } while (0) 66 67 #define flush_cache_vmap(start, end) do { } while (0) 68 #define flush_cache_vunmap(start, end) do { } while (0) 69 70 #ifdef CONFIG_DEBUG_PAGEALLOC 71 /* internal debugging function */ 72 void kernel_map_pages(struct page *page, int numpages, int enable); 73 #endif 74 75 #endif /* !__ASSEMBLY__ */ 76 77 #endif /* _SPARC64_CACHEFLUSH_H */ 78