arch/sparc/include/asm/cacheflush_32.h

   1 #ifndef _SPARC_CACHEFLUSH_H
   2 #define _SPARC_CACHEFLUSH_H
   3
   4 #include <linux/mm.h>           /* Common for other includes */
   5 // #include <linux/kernel.h> from pgalloc.h
   6 // #include <linux/sched.h>  from pgalloc.h
   7
   8 // #include <asm/page.h>
   9 #include <asm/btfixup.h>
  10
  11 /*
  12  * Fine grained cache flushing.
  13  */
  14 #ifdef CONFIG_SMP
  15
  16 BTFIXUPDEF_CALL(void, local_flush_cache_all, void)
  17 BTFIXUPDEF_CALL(void, local_flush_cache_mm, struct mm_struct *)
  18 BTFIXUPDEF_CALL(void, local_flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
  19 BTFIXUPDEF_CALL(void, local_flush_cache_page, struct vm_area_struct *, unsigned long)
  20
  21 #define local_flush_cache_all() BTFIXUP_CALL(local_flush_cache_all)()
  22 #define local_flush_cache_mm(mm) BTFIXUP_CALL(local_flush_cache_mm)(mm)
  23 #define local_flush_cache_range(vma,start,end) BTFIXUP_CALL(local_flush_cache_range)(vma,start,end)
  24 #define local_flush_cache_page(vma,addr) BTFIXUP_CALL(local_flush_cache_page)(vma,addr)
  25
  26 BTFIXUPDEF_CALL(void, local_flush_page_to_ram, unsigned long)
  27 BTFIXUPDEF_CALL(void, local_flush_sig_insns, struct mm_struct *, unsigned long)
  28
  29 #define local_flush_page_to_ram(addr) BTFIXUP_CALL(local_flush_page_to_ram)(addr)
  30 #define local_flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(local_flush_sig_insns)(mm,insn_addr)
  31
  32 extern void smp_flush_cache_all(void);
  33 extern void smp_flush_cache_mm(struct mm_struct *mm);
  34 extern void smp_flush_cache_range(struct vm_area_struct *vma,
  35                                   unsigned long start,
  36                                   unsigned long end);
  37 extern void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
  38
  39 extern void smp_flush_page_to_ram(unsigned long page);
  40 extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr);
  41
  42 #endif /* CONFIG_SMP */
  43
  44 BTFIXUPDEF_CALL(void, flush_cache_all, void)
  45 BTFIXUPDEF_CALL(void, flush_cache_mm, struct mm_struct *)
  46 BTFIXUPDEF_CALL(void, flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long)
  47 BTFIXUPDEF_CALL(void, flush_cache_page, struct vm_area_struct *, unsigned long)
  48
  49 #define flush_cache_all() BTFIXUP_CALL(flush_cache_all)()
  50 #define flush_cache_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
  51 #define flush_cache_dup_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm)
  52 #define flush_cache_range(vma,start,end) BTFIXUP_CALL(flush_cache_range)(vma,start,end)
  53 #define flush_cache_page(vma,addr,pfn) BTFIXUP_CALL(flush_cache_page)(vma,addr)
  54 #define flush_icache_range(start, end)          do { } while (0)
  55 #define flush_icache_page(vma, pg)              do { } while (0)
  56
  57 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  58
  59 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
  60         do {                                                    \
  61                 flush_cache_page(vma, vaddr, page_to_pfn(page));\
  62                 memcpy(dst, src, len);                          \
  63         } while (0)
  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         } while (0)
  69
  70 BTFIXUPDEF_CALL(void, __flush_page_to_ram, unsigned long)
  71 BTFIXUPDEF_CALL(void, flush_sig_insns, struct mm_struct *, unsigned long)
  72
  73 #define __flush_page_to_ram(addr) BTFIXUP_CALL(__flush_page_to_ram)(addr)
  74 #define flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(flush_sig_insns)(mm,insn_addr)
  75
  76 extern void sparc_flush_page_to_ram(struct page *page);
  77
  78 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
  79 #define flush_dcache_page(page)                 sparc_flush_page_to_ram(page)
  80 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
  81 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  82
  83 #define flush_cache_vmap(start, end)            flush_cache_all()
  84 #define flush_cache_vunmap(start, end)          flush_cache_all()
  85
  86 #endif /* _SPARC_CACHEFLUSH_H */