summaryrefslogtreecommitdiffstats
path: root/kernel/arch/m32r/include/asm/cacheflush.h
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/arch/m32r/include/asm/cacheflush.h')
-rw-r--r--kernel/arch/m32r/include/asm/cacheflush.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/kernel/arch/m32r/include/asm/cacheflush.h b/kernel/arch/m32r/include/asm/cacheflush.h
new file mode 100644
index 000000000..8e8e04516
--- /dev/null
+++ b/kernel/arch/m32r/include/asm/cacheflush.h
@@ -0,0 +1,72 @@
+#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 ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 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 ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 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 ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 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 */