include/asm-x86/cacheflush.h

   1 #ifndef _ASM_X86_CACHEFLUSH_H
   2 #define _ASM_X86_CACHEFLUSH_H
   3
   4 /* Keep includes the same across arches.  */
   5 #include <linux/mm.h>
   6
   7 /* Caches aren't brain-dead on the intel. */
   8 #define flush_cache_all()                       do { } while (0)
   9 #define flush_cache_mm(mm)                      do { } while (0)
  10 #define flush_cache_dup_mm(mm)                  do { } while (0)
  11 #define flush_cache_range(vma, start, end)      do { } while (0)
  12 #define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
  13 #define flush_dcache_page(page)                 do { } while (0)
  14 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
  15 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  16 #define flush_icache_range(start, end)          do { } while (0)
  17 #define flush_icache_page(vma,pg)               do { } while (0)
  18 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  19 #define flush_cache_vmap(start, end)            do { } while (0)
  20 #define flush_cache_vunmap(start, end)          do { } while (0)
  21
  22 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
  23         memcpy(dst, src, len)
  24 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
  25         memcpy(dst, src, len)
  26
  27 int __deprecated_for_modules change_page_attr(struct page *page, int numpages,
  28                                                                 pgprot_t prot);
  29
  30 int set_pages_uc(struct page *page, int numpages);
  31 int set_pages_wb(struct page *page, int numpages);
  32 int set_pages_x(struct page *page, int numpages);
  33 int set_pages_nx(struct page *page, int numpages);
  34 int set_pages_ro(struct page *page, int numpages);
  35 int set_pages_rw(struct page *page, int numpages);
  36
  37 int set_memory_uc(unsigned long addr, int numpages);
  38 int set_memory_wb(unsigned long addr, int numpages);
  39 int set_memory_x(unsigned long addr, int numpages);
  40 int set_memory_nx(unsigned long addr, int numpages);
  41 int set_memory_ro(unsigned long addr, int numpages);
  42 int set_memory_rw(unsigned long addr, int numpages);
  43 int set_memory_np(unsigned long addr, int numpages);
  44
  45 void clflush_cache_range(void *addr, unsigned int size);
  46
  47 void cpa_init(void);
  48
  49 #ifdef CONFIG_DEBUG_RODATA
  50 void mark_rodata_ro(void);
  51 extern const int rodata_test_data;
  52 #endif
  53
  54 #ifdef CONFIG_DEBUG_RODATA_TEST
  55 int rodata_test(void);
  56 #else
  57 static inline int rodata_test(void)
  58 {
  59         return 0;
  60 }
  61 #endif
  62
  63 #endif