linux-kernel - [RFC/PATCH 2/4] c6x: Provide default implementation for dma_{alloc,free}

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Message-Id: <1366607379-3055-1-git-send-email-dhobsong@igel.co.jp>
Date:	Mon, 22 Apr 2013 14:09:38 +0900
From:	Damian Hobson-Garcia <dhobsong@...l.co.jp>
To:	linux-kernel@...r.kernel.org
Cc:	msalter@...hat.com, linux-c6x-dev@...ux-c6x.org,
	Damian Hobson-Garcia <dhobsong@...l.co.jp>
Subject: [RFC/PATCH 2/4] c6x: Provide default implementation for dma_{alloc,free}_attrs

Most architectures that define CONFIG_HAVE_DMA, have implementations for
both dma_alloc_attrs() and dma_free_attrs().  All achitectures that do
not define CONFIG_HAVE_DMA also have both of these definitions provided by
dma-mapping-broken.h.

Add default implementations for these functions on c6x.

Signed-off-by: Damian Hobson-Garcia <dhobsong@...l.co.jp>
---
 arch/c6x/include/asm/dma-mapping.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 88bd0d8..8947605 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -89,6 +89,9 @@ extern void dma_free_coherent(struct device *, size_t, void *, dma_addr_t);
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent((d), (s), (h), (f))
 #define dma_free_noncoherent(d, s, v, h)  dma_free_coherent((d), (s), (v), (h))
 
+#define dma_alloc_attrs(d, s, h, f, a) dma_alloc_coherent(d, s, h, f)
+#define dma_free_attrs(d, s, h, f, a) dma_free_coherent(d, s, h, f)
+
 /* Not supported for now */
 static inline int dma_mmap_coherent(struct device *dev,
 				    struct vm_area_struct *vma, void *cpu_addr,
-- 
1.7.5.4

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