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 */ 26extern void flush_icache_range(unsigned long start, unsigned long end); 27extern void __flush_icache_page(unsigned long); 28 29extern void __flush_dcache_page(void *addr, int flush_icache); 30extern void flush_dcache_page_impl(struct page *page); 31#ifdef CONFIG_SMP 32extern void smp_flush_dcache_page_impl(struct page *page, int cpu); 33extern 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 39extern void __flush_dcache_range(unsigned long start, unsigned long end); 40#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 41extern 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 46extern 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 */ 72void kernel_map_pages(struct page *page, int numpages, int enable); 73#endif 74 75#endif /* !__ASSEMBLY__ */ 76 77#endif /* _SPARC64_CACHEFLUSH_H */ 78