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authorChristoph Hellwig <hch@lst.de>2018-12-25 17:44:19 +0100
committerChristoph Hellwig <hch@lst.de>2019-01-04 09:03:16 +0100
commitd7076f07840851bbe57cb21ba052d6a4a9b1efa9 (patch)
tree2cebc6f27705cdc0049be2489a7ff353f096b9f7 /include
parent2e05ea5cdc1ac55d9ef678ed5ea6c38acf7fd2a3 (diff)
dma-mapping: implement dmam_alloc_coherent using dmam_alloc_attrs
dmam_alloc_coherent is just the default no-flags case of dmam_alloc_attrs, so take advantage of this similar to the non-managed version. Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include')
-rw-r--r--include/linux/dma-mapping.h20
1 files changed, 13 insertions, 7 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 0452a8be2789..fa2ebe8ad4d0 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -677,21 +677,20 @@ dma_mark_declared_memory_occupied(struct device *dev,
* Managed DMA API
*/
#ifdef CONFIG_HAS_DMA
-extern void *dmam_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp);
+extern void *dmam_alloc_attrs(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+ unsigned long attrs);
extern void dmam_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle);
#else /* !CONFIG_HAS_DMA */
-static inline void *dmam_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp)
+static inline void *dmam_alloc_attrs(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+ unsigned long attrs)
{ return NULL; }
static inline void dmam_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle) { }
#endif /* !CONFIG_HAS_DMA */
-extern void *dmam_alloc_attrs(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp,
- unsigned long attrs);
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
extern int dmam_declare_coherent_memory(struct device *dev,
phys_addr_t phys_addr,
@@ -711,6 +710,13 @@ static inline void dmam_release_declared_memory(struct device *dev)
}
#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
+static inline void *dmam_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp)
+{
+ return dmam_alloc_attrs(dev, size, dma_handle, gfp,
+ (gfp & __GFP_NOWARN) ? DMA_ATTR_NO_WARN : 0);
+}
+
static inline void *dma_alloc_wc(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t gfp)
{