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 13 #define flushi(addr) __asm__ __volatile__ ("flush %0" : : "r" (addr) : "memory") 14 #define flushw_all() __asm__ __volatile__("flushw") 15 16 extern void __flushw_user(void); 17 #define flushw_user() __flushw_user() 18 19 #define flush_user_windows flushw_user 20 #define flush_register_windows flushw_all 21 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) 30 31 /* 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. 35 */ 36 extern void flush_icache_range(unsigned long start, unsigned long end); 37 extern void __flush_icache_page(unsigned long); 38 39 extern void __flush_dcache_page(void *addr, int flush_icache); 40 extern void flush_dcache_page_impl(struct page *page); 41 #ifdef CONFIG_SMP 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); 44 #else 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) 47 #endif 48 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); 52 53 #define flush_icache_page(vma, pg) do { } while(0) 54 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) 55 56 extern void flush_ptrace_access(struct vm_area_struct *, struct page *, 57 unsigned long uaddr, void *kaddr, 58 unsigned long len, int write); 59 60 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ 61 do { \ 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); \ 65 } while (0) 66 67 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ 68 do { \ 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); \ 72 } while (0) 73 74 #define flush_dcache_mmap_lock(mapping) do { } while (0) 75 #define flush_dcache_mmap_unlock(mapping) do { } while (0) 76 77 #define flush_cache_vmap(start, end) do { } while (0) 78 #define flush_cache_vunmap(start, end) do { } while (0) 79 80 #ifdef CONFIG_DEBUG_PAGEALLOC 81 /* internal debugging function */ 82 void kernel_map_pages(struct page *page, int numpages, int enable); 83 #endif 84 85 #endif /* !__ASSEMBLY__ */ 86 87 #endif /* _SPARC64_CACHEFLUSH_H */ 88