summaryrefslogtreecommitdiff
path: root/include/asm-generic
diff options
context:
space:
mode:
authorMarek Szyprowski <m.szyprowski@samsung.com>2013-07-29 14:31:45 +0200
committerMarek Szyprowski <m.szyprowski@samsung.com>2013-08-27 09:18:29 +0200
commita2547380393ac82c659b40182b0da8d05a8365f3 (patch)
tree45ff811ef870825743dd88eb14128003a9e3e375 /include/asm-generic
parentf7d8f1e9cb44e6ee1602586dbf7f2bed637a2b4e (diff)
drivers: dma-contiguous: clean source code and prepare for device tree
This patch cleans the initialization of dma contiguous framework. The all-in-one dma_declare_contiguous() function is now separated into dma_contiguous_reserve_area() which only steals the the memory from memblock allocator and dma_contiguous_add_device() function, which assigns given device to the specified reserved memory area. This improves the flexibility in defining contiguous memory areas and assigning device to them, because now it is possible to assign more than one device to the given contiguous memory area. Such split in initialization procedure is also required for upcoming device tree support. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Tomasz Figa <t.figa@samsung.com>
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/dma-contiguous.h28
1 files changed, 0 insertions, 28 deletions
diff --git a/include/asm-generic/dma-contiguous.h b/include/asm-generic/dma-contiguous.h
deleted file mode 100644
index 294b1e755ab2..000000000000
--- a/include/asm-generic/dma-contiguous.h
+++ /dev/null
@@ -1,28 +0,0 @@
-#ifndef ASM_DMA_CONTIGUOUS_H
-#define ASM_DMA_CONTIGUOUS_H
-
-#ifdef __KERNEL__
-#ifdef CONFIG_CMA
-
-#include <linux/device.h>
-#include <linux/dma-contiguous.h>
-
-static inline struct cma *dev_get_cma_area(struct device *dev)
-{
- if (dev && dev->cma_area)
- return dev->cma_area;
- return dma_contiguous_default_area;
-}
-
-static inline void dev_set_cma_area(struct device *dev, struct cma *cma)
-{
- if (dev)
- dev->cma_area = cma;
- if (!dev && !dma_contiguous_default_area)
- dma_contiguous_default_area = cma;
-}
-
-#endif
-#endif
-
-#endif