1 files changed, 69 insertions, 0 deletions

diff --git a/arch/m32r/include/asm/cacheflush.h b/arch/m32r/include/asm/cacheflush.h
new file mode 100644
index 00000000000..78587c95814
--- /dev/null
+++ b/arch/m32r/include/asm/cacheflush.h
@@ -0,0 +1,69 @@
+#ifndef _ASM_M32R_CACHEFLUSH_H
+#define _ASM_M32R_CACHEFLUSH_H
+
+#include <linux/mm.h>
+
+extern void _flush_cache_all(void);
+extern void _flush_cache_copyback_all(void);
+
+#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
+#define flush_cache_all()                       do { } while (0)
+#define flush_cache_mm(mm)                      do { } while (0)
+#define flush_cache_dup_mm(mm)                  do { } while (0)
+#define flush_cache_range(vma, start, end)      do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
+#define flush_dcache_page(page)                 do { } while (0)
+#define flush_dcache_mmap_lock(mapping)         do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
+#ifndef CONFIG_SMP
+#define flush_icache_range(start, end)          _flush_cache_copyback_all()
+#define flush_icache_page(vma,pg)               _flush_cache_copyback_all()
+#define flush_icache_user_range(vma,pg,adr,len) _flush_cache_copyback_all()
+#define flush_cache_sigtramp(addr)              _flush_cache_copyback_all()
+#else   /* CONFIG_SMP */
+extern void smp_flush_cache_all(void);
+#define flush_icache_range(start, end)          smp_flush_cache_all()
+#define flush_icache_page(vma,pg)               smp_flush_cache_all()
+#define flush_icache_user_range(vma,pg,adr,len) smp_flush_cache_all()
+#define flush_cache_sigtramp(addr)              _flush_cache_copyback_all()
+#endif  /* CONFIG_SMP */
+#elif defined(CONFIG_CHIP_M32102)
+#define flush_cache_all()                       do { } while (0)
+#define flush_cache_mm(mm)                      do { } while (0)
+#define flush_cache_dup_mm(mm)                  do { } while (0)
+#define flush_cache_range(vma, start, end)      do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
+#define flush_dcache_page(page)                 do { } while (0)
+#define flush_dcache_mmap_lock(mapping)         do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
+#define flush_icache_range(start, end)          _flush_cache_all()
+#define flush_icache_page(vma,pg)               _flush_cache_all()
+#define flush_icache_user_range(vma,pg,adr,len) _flush_cache_all()
+#define flush_cache_sigtramp(addr)              _flush_cache_all()
+#else
+#define flush_cache_all()                       do { } while (0)
+#define flush_cache_mm(mm)                      do { } while (0)
+#define flush_cache_dup_mm(mm)                  do { } while (0)
+#define flush_cache_range(vma, start, end)      do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
+#define flush_dcache_page(page)                 do { } while (0)
+#define flush_dcache_mmap_lock(mapping)         do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
+#define flush_icache_range(start, end)          do { } while (0)
+#define flush_icache_page(vma,pg)               do { } while (0)
+#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
+#define flush_cache_sigtramp(addr)              do { } while (0)
+#endif  /* CONFIG_CHIP_* */
+
+#define flush_cache_vmap(start, end)    do { } while (0)
+#define flush_cache_vunmap(start, end)  do { } while (0)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len)      \
+do {                                                            \
+        memcpy(dst, src, len);                                  \
+        flush_icache_user_range(vma, page, vaddr, len);         \
+} while (0)
+#define copy_from_user_page(vma, page, vaddr, dst, src, len)    \
+        memcpy(dst, src, len)
+
+#endif /* _ASM_M32R_CACHEFLUSH_H */