This wasn't an asm-generic header to start with, and can be merged into
dma-mapping.h trivially.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
arch/xtensa/include/asm/dma-mapping.h | 2 --
drivers/base/dma-mapping.c | 3 +--
include/asm-generic/dma-coherent.h | 32 --------------------------------
include/linux/dma-mapping.h | 34 ++++++++++++++++++++++++++++------
4 files changed, 29 insertions(+), 42 deletions(-)
delete mode 100644 include/asm-generic/dma-coherent.h
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 32350e9..4e6ff4d 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -13,8 +13,6 @@
#include <asm/cache.h>
#include <asm/io.h>
-#include <asm-generic/dma-coherent.h>
-
#include <linux/mm.h>
#include <linux/scatterlist.h>
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index 381e39d..d799662 100644
--- a/drivers/base/dma-mapping.c
+++ b/drivers/base/dma-mapping.c
@@ -12,7 +12,6 @@
#include <linux/gfp.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
-#include <asm-generic/dma-coherent.h>
/*
* Managed DMA API
@@ -167,7 +166,7 @@ void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
}
EXPORT_SYMBOL(dmam_free_noncoherent);
-#ifdef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
static void dmam_coherent_decl_release(struct device *dev, void *res)
{
diff --git a/include/asm-generic/dma-coherent.h b/include/asm-generic/dma-coherent.h
deleted file mode 100644
index 0297e58..0000000
--- a/include/asm-generic/dma-coherent.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef DMA_COHERENT_H
-#define DMA_COHERENT_H
-
-#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
-/*
- * These three functions are only for dma allocator.
- * Don't use them in device drivers.
- */
-int dma_alloc_from_coherent(struct device *dev, ssize_t size,
- dma_addr_t *dma_handle, void **ret);
-int dma_release_from_coherent(struct device *dev, int order, void *vaddr);
-
-int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
- void *cpu_addr, size_t size, int *ret);
-/*
- * Standard interface
- */
-#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
-int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
- dma_addr_t device_addr, size_t size, int flags);
-
-void dma_release_declared_memory(struct device *dev);
-
-void *dma_mark_declared_memory_occupied(struct device *dev,
- dma_addr_t device_addr, size_t size);
-#else
-#define dma_alloc_from_coherent(dev, size, handle, ret) (0)
-#define dma_release_from_coherent(dev, order, vaddr) (0)
-#define dma_mmap_from_coherent(dev, vma, vaddr, order, ret) (0)
-#endif
-
-#endif
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index cc0517b..d6b575b 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -11,7 +11,6 @@
#include <linux/scatterlist.h>
#include <linux/kmemcheck.h>
#include <linux/bug.h>
-#include <asm-generic/dma-coherent.h>
/*
* A dma_addr_t can hold any valid DMA or bus address for the platform.
@@ -87,6 +86,23 @@ static inline int is_device_dma_capable(struct device *dev)
return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
}
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
+/*
+ * These three functions are only for dma allocator.
+ * Don't use them in device drivers.
+ */
+int dma_alloc_from_coherent(struct device *dev, ssize_t size,
+ dma_addr_t *dma_handle, void **ret);
+int dma_release_from_coherent(struct device *dev, int order, void *vaddr);
+
+int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, size_t size, int *ret);
+#else
+#define dma_alloc_from_coherent(dev, size, handle, ret) (0)
+#define dma_release_from_coherent(dev, order, vaddr) (0)
+#define dma_mmap_from_coherent(dev, vma, vaddr, order, ret) (0)
+#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
+
#ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h>
#else
@@ -568,7 +584,13 @@ static inline int dma_get_cache_alignment(void)
#define DMA_MEMORY_INCLUDES_CHILDREN 0x04
#define DMA_MEMORY_EXCLUSIVE 0x08
-#ifndef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
+int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
+ dma_addr_t device_addr, size_t size, int flags);
+void dma_release_declared_memory(struct device *dev);
+void *dma_mark_declared_memory_occupied(struct device *dev,
+ dma_addr_t device_addr, size_t size);
+#else
static inline int
dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size, int flags)
@@ -587,7 +609,7 @@ dma_mark_declared_memory_occupied(struct device *dev,
{
return ERR_PTR(-EBUSY);
}
-#endif
+#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
/*
* Managed DMA API
@@ -600,13 +622,13 @@ extern void *dmam_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp);
extern void dmam_free_noncoherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle);
-#ifdef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
extern int dmam_declare_coherent_memory(struct device *dev,
phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size,
int flags);
extern void dmam_release_declared_memory(struct device *dev);
-#else /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
+#else /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
static inline int dmam_declare_coherent_memory(struct device *dev,
phys_addr_t phys_addr, dma_addr_t device_addr,
size_t size, gfp_t gfp)
@@ -617,7 +639,7 @@ static inline int dmam_declare_coherent_memory(struct device *dev,
static inline void dmam_release_declared_memory(struct device *dev)
{
}
-#endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
+#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
static inline void *dma_alloc_writecombine(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t gfp)
--
1.9.1
--
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