2013-04-22 05:09:52

by Damian Hobson-Garcia

[permalink] [raw]
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

Add default implementations for these functions on c6x.

Signed-off-by: Damian Hobson-Garcia <[email protected]>
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,