From a0c4e2203fdde7b2636eab3f1406ea66f0e0da19 Mon Sep 17 00:00:00 2001
From: Lucas Stach <dev@lynxeye.de>
Date: Thu, 5 Mar 2015 22:49:58 +0100
Subject: dma: add streaming DMA ops

This will allow us to implement cache maintenance in a platform
agnostic way.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 include/dma.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'include/dma.h')

diff --git a/include/dma.h b/include/dma.h
index 899f831faa..fb75eec678 100644
--- a/include/dma.h
+++ b/include/dma.h
@@ -11,6 +11,7 @@
 #include <malloc.h>
 #include <xfuncs.h>
 
+#include <dma-dir.h>
 #include <asm/dma.h>
 
 #ifndef dma_alloc
@@ -27,4 +28,14 @@ static inline void dma_free(void *mem)
 }
 #endif
 
+/* streaming DMA - implement the below calls to support HAS_DMA */
+void dma_sync_single_for_cpu(unsigned long address, size_t size,
+			     enum dma_data_direction dir);
+
+void dma_sync_single_for_device(unsigned long address, size_t size,
+				enum dma_data_direction dir);
+
+void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle);
+void dma_free_coherent(void *mem, dma_addr_t dma_handle, size_t size);
+
 #endif /* __DMA_H */
-- 
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