LXR linux/arch/m32r/include/asm/cacheflush.h

   1#ifndef _ASM_M32R_CACHEFLUSH_H
   2#define _ASM_M32R_CACHEFLUSH_H
   3
   4#include <linux/mm.h>
   5
   6extern void _flush_cache_all(void);
   7extern void _flush_cache_copyback_all(void);
   8
   9#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
  10#define flush_cache_all()                       do { } while (0)
  11#define flush_cache_mm(mm)                      do { } while (0)
  12#define flush_cache_dup_mm(mm)                  do { } while (0)
  13#define flush_cache_range(vma, start, end)      do { } while (0)
  14#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
  15#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
  16#define flush_dcache_page(page)                 do { } while (0)
  17#define flush_dcache_mmap_lock(mapping)         do { } while (0)
  18#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  19#ifndef CONFIG_SMP
  20#define flush_icache_range(start, end)          _flush_cache_copyback_all()
  21#define flush_icache_page(vma,pg)               _flush_cache_copyback_all()
  22#define flush_icache_user_range(vma,pg,adr,len) _flush_cache_copyback_all()
  23#define flush_cache_sigtramp(addr)              _flush_cache_copyback_all()
  24#else   /* CONFIG_SMP */
  25extern void smp_flush_cache_all(void);
  26#define flush_icache_range(start, end)          smp_flush_cache_all()
  27#define flush_icache_page(vma,pg)               smp_flush_cache_all()
  28#define flush_icache_user_range(vma,pg,adr,len) smp_flush_cache_all()
  29#define flush_cache_sigtramp(addr)              _flush_cache_copyback_all()
  30#endif  /* CONFIG_SMP */
  31#elif defined(CONFIG_CHIP_M32102)
  32#define flush_cache_all()                       do { } while (0)
  33#define flush_cache_mm(mm)                      do { } while (0)
  34#define flush_cache_dup_mm(mm)                  do { } while (0)
  35#define flush_cache_range(vma, start, end)      do { } while (0)
  36#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
  37#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
  38#define flush_dcache_page(page)                 do { } while (0)
  39#define flush_dcache_mmap_lock(mapping)         do { } while (0)
  40#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  41#define flush_icache_range(start, end)          _flush_cache_all()
  42#define flush_icache_page(vma,pg)               _flush_cache_all()
  43#define flush_icache_user_range(vma,pg,adr,len) _flush_cache_all()
  44#define flush_cache_sigtramp(addr)              _flush_cache_all()
  45#else
  46#define flush_cache_all()                       do { } while (0)
  47#define flush_cache_mm(mm)                      do { } while (0)
  48#define flush_cache_dup_mm(mm)                  do { } while (0)
  49#define flush_cache_range(vma, start, end)      do { } while (0)
  50#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
  51#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
  52#define flush_dcache_page(page)                 do { } while (0)
  53#define flush_dcache_mmap_lock(mapping)         do { } while (0)
  54#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  55#define flush_icache_range(start, end)          do { } while (0)
  56#define flush_icache_page(vma,pg)               do { } while (0)
  57#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  58#define flush_cache_sigtramp(addr)              do { } while (0)
  59#endif  /* CONFIG_CHIP_* */
  60
  61#define flush_cache_vmap(start, end)    do { } while (0)
  62#define flush_cache_vunmap(start, end)  do { } while (0)
  63
  64#define copy_to_user_page(vma, page, vaddr, dst, src, len)      \
  65do {                                                            \
  66        memcpy(dst, src, len);                                  \
  67        flush_icache_user_range(vma, page, vaddr, len);         \
  68} while (0)
  69#define copy_from_user_page(vma, page, vaddr, dst, src, len)    \
  70        memcpy(dst, src, len)
  71
  72#endif /* _ASM_M32R_CACHEFLUSH_H */
  73