x86: move dma_cache_sync to common header

they are the same in both architectures.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

3 files changed, 6 insertions, 14 deletions

diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index b331a8d3a7cf..51a79d71dabd 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -185,4 +185,10 @@ static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
         dma_unmap_single(dev, addr, size, direction);
 }
 
+static inline void
+dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+        enum dma_data_direction dir)
+{
+        flush_write_buffers();
+}
 #endif
diff --git a/include/asm-x86/dma-mapping_32.h b/include/asm-x86/dma-mapping_32.h
index c61ae7ff222c..e60c30a88311 100644
--- a/include/asm-x86/dma-mapping_32.h
+++ b/include/asm-x86/dma-mapping_32.h
@@ -55,13 +55,6 @@ dma_get_cache_alignment(void)
 
 #define dma_is_consistent(d, h) (1)
 
-static inline void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-               enum dma_data_direction direction)
-{
-        flush_write_buffers();
-}
-
 #define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
 extern int
 dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
diff --git a/include/asm-x86/dma-mapping_64.h b/include/asm-x86/dma-mapping_64.h
index 2b4a43080db9..b1bc6ca7613d 100644
--- a/include/asm-x86/dma-mapping_64.h
+++ b/include/asm-x86/dma-mapping_64.h
@@ -24,13 +24,6 @@ static inline int dma_get_cache_alignment(void)
 
 extern int dma_set_mask(struct device *dev, u64 mask);
 
-static inline void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-        enum dma_data_direction dir)
-{
-        flush_write_buffers();
-}
-
 extern struct device fallback_dev;
 extern int panic_on_overflow;