sh: consolidate flush_dcache_mmap_lock/unlock() definitions.

All of the flush_dcache_mmap_lock()/flush_dcache_mmap_unlock()
definitions are identical across all CPUs, so just provide them
generically in asm/cacheflush.h.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/include/asm/cacheflush.h

@@ -20,8 +20,6 @@
 #define flush_dcache_page(page)			do { } while (0)
 #define flush_icache_range(start, end)		do { } while (0)
 #define flush_icache_page(vma,pg)		do { } while (0)
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
 #define flush_cache_sigtramp(vaddr)		do { } while (0)
 #define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
 #define __flush_wback_region(start, size)	do { (void)(start); } while (0)
@@ -71,6 +69,9 @@ extern void copy_from_user_page(struct vm_area_struct *vma,
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
+#define flush_dcache_mmap_lock(mapping)		do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
+
 void kmap_coherent_init(void);
 void *kmap_coherent(struct page *page, unsigned long addr);
 void kunmap_coherent(void);

arch/sh/include/cpu-common/cpu/cacheflush.h

@@ -32,8 +32,6 @@
 #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)

arch/sh/include/cpu-sh2a/cpu/cacheflush.h

@@ -23,8 +23,6 @@
 #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)
 void flush_icache_range(unsigned long start, unsigned long end);
 #define flush_icache_page(vma,pg)		do { } while (0)
 #define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)

arch/sh/include/cpu-sh3/cpu/cacheflush.h

@@ -25,9 +25,6 @@ void flush_dcache_page(struct page *pg);
 void flush_icache_range(unsigned long start, unsigned long end);
 void flush_icache_page(struct vm_area_struct *vma, struct page *page);
 
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-
 /* SH3 has unified cache so no special action needed here */
 #define flush_cache_sigtramp(vaddr)		do { } while (0)
 #define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)

arch/sh/include/cpu-sh4/cpu/cacheflush.h

@@ -24,10 +24,6 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
 void flush_cache_page(struct vm_area_struct *vma, unsigned long addr,
 		      unsigned long pfn);
 void flush_dcache_page(struct page *pg);
-
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-
 void flush_icache_range(unsigned long start, unsigned long end);
 void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
 			     unsigned long addr, int len);

arch/sh/include/cpu-sh5/cpu/cacheflush.h

@@ -20,10 +20,6 @@ extern void flush_icache_user_range(struct vm_area_struct *vma,
 				    int len);
 
 #define flush_cache_dup_mm(mm)	flush_cache_mm(mm)
-
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-
 #define flush_icache_page(vma, page)	do { } while (0)
 
 #endif /* __ASSEMBLY__ */