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TOMOYO Linux Cross Reference
Linux/arch/m32r/include/asm/cacheflush.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _ASM_M32R_CACHEFLUSH_H
  3 #define _ASM_M32R_CACHEFLUSH_H
  4 
  5 #include <linux/mm.h>
  6 
  7 extern void _flush_cache_all(void);
  8 extern void _flush_cache_copyback_all(void);
  9 
 10 #if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
 11 #define flush_cache_all()                       do { } while (0)
 12 #define flush_cache_mm(mm)                      do { } while (0)
 13 #define flush_cache_dup_mm(mm)                  do { } while (0)
 14 #define flush_cache_range(vma, start, end)      do { } while (0)
 15 #define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
 16 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
 17 #define flush_dcache_page(page)                 do { } while (0)
 18 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
 19 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
 20 #ifndef CONFIG_SMP
 21 #define flush_icache_range(start, end)          _flush_cache_copyback_all()
 22 #define flush_icache_page(vma,pg)               _flush_cache_copyback_all()
 23 #define flush_icache_user_range(vma,pg,adr,len) _flush_cache_copyback_all()
 24 #define flush_cache_sigtramp(addr)              _flush_cache_copyback_all()
 25 #else   /* CONFIG_SMP */
 26 extern void smp_flush_cache_all(void);
 27 #define flush_icache_range(start, end)          smp_flush_cache_all()
 28 #define flush_icache_page(vma,pg)               smp_flush_cache_all()
 29 #define flush_icache_user_range(vma,pg,adr,len) smp_flush_cache_all()
 30 #define flush_cache_sigtramp(addr)              _flush_cache_copyback_all()
 31 #endif  /* CONFIG_SMP */
 32 #elif defined(CONFIG_CHIP_M32102)
 33 #define flush_cache_all()                       do { } while (0)
 34 #define flush_cache_mm(mm)                      do { } while (0)
 35 #define flush_cache_dup_mm(mm)                  do { } while (0)
 36 #define flush_cache_range(vma, start, end)      do { } while (0)
 37 #define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
 38 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
 39 #define flush_dcache_page(page)                 do { } while (0)
 40 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
 41 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
 42 #define flush_icache_range(start, end)          _flush_cache_all()
 43 #define flush_icache_page(vma,pg)               _flush_cache_all()
 44 #define flush_icache_user_range(vma,pg,adr,len) _flush_cache_all()
 45 #define flush_cache_sigtramp(addr)              _flush_cache_all()
 46 #else
 47 #define flush_cache_all()                       do { } while (0)
 48 #define flush_cache_mm(mm)                      do { } while (0)
 49 #define flush_cache_dup_mm(mm)                  do { } while (0)
 50 #define flush_cache_range(vma, start, end)      do { } while (0)
 51 #define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
 52 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
 53 #define flush_dcache_page(page)                 do { } while (0)
 54 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
 55 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
 56 #define flush_icache_range(start, end)          do { } while (0)
 57 #define flush_icache_page(vma,pg)               do { } while (0)
 58 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
 59 #define flush_cache_sigtramp(addr)              do { } while (0)
 60 #endif  /* CONFIG_CHIP_* */
 61 
 62 #define flush_cache_vmap(start, end)    do { } while (0)
 63 #define flush_cache_vunmap(start, end)  do { } while (0)
 64 
 65 #define copy_to_user_page(vma, page, vaddr, dst, src, len)      \
 66 do {                                                            \
 67         memcpy(dst, src, len);                                  \
 68         flush_icache_user_range(vma, page, vaddr, len);         \
 69 } while (0)
 70 #define copy_from_user_page(vma, page, vaddr, dst, src, len)    \
 71         memcpy(dst, src, len)
 72 
 73 #endif /* _ASM_M32R_CACHEFLUSH_H */
 74 

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