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 #define flushw_all() __asm__ __volatile__("flushw") 12 13 extern void __flushw_user(void); 14 #define flushw_user() __flushw_user() 15 16 #define flush_user_windows flushw_user 17 #define flush_register_windows flushw_all 18 19 /* These are the same regardless of whether this is an SMP kernel or not. */ 20 #define flush_cache_mm(__mm) \ 21 do { if ((__mm) == current->mm) flushw_user(); } while(0) 22 #define flush_cache_dup_mm(mm) flush_cache_mm(mm) 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) 27 28 /* 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. 32 */ 33 extern void flush_icache_range(unsigned long start, unsigned long end); 34 extern void __flush_icache_page(unsigned long); 35 36 extern void __flush_dcache_page(void *addr, int flush_icache); 37 extern void flush_dcache_page_impl(struct page *page); 38 #ifdef CONFIG_SMP 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); 41 #else 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) 44 #endif 45 46 extern void __flush_dcache_range(unsigned long start, unsigned long end); 47 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 48 extern void flush_dcache_page(struct page *page); 49 50 #define flush_icache_page(vma, pg) do { } while(0) 51 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) 52 53 extern void flush_ptrace_access(struct vm_area_struct *, struct page *, 54 unsigned long uaddr, void *kaddr, 55 unsigned long len, int write); 56 57 #define copy_to_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, src, len, 0); \ 62 } while (0) 63 64 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ 65 do { \ 66 flush_cache_page(vma, vaddr, page_to_pfn(page)); \ 67 memcpy(dst, src, len); \ 68 flush_ptrace_access(vma, page, vaddr, dst, len, 1); \ 69 } while (0) 70 71 #define flush_dcache_mmap_lock(mapping) do { } while (0) 72 #define flush_dcache_mmap_unlock(mapping) do { } while (0) 73 74 #define flush_cache_vmap(start, end) do { } while (0) 75 #define flush_cache_vunmap(start, end) do { } while (0) 76 77 #ifdef CONFIG_DEBUG_PAGEALLOC 78 /* internal debugging function */ 79 void kernel_map_pages(struct page *page, int numpages, int enable); 80 #endif 81 82 #endif /* !__ASSEMBLY__ */ 83 84 #endif /* _SPARC64_CACHEFLUSH_H */ 85