Commit 87b54e78 authored by Gregory CLEMENT's avatar Gregory CLEMENT

arm: dma mapping: Export a dma ops function arm_dma_set_mask

Expose another DMA operations function: arm_dma_set_mask. This
function will be added to a custom DMA ops for Armada 370/XP.
Depending of its configuration Armada 370/XP can be set as a "nearly"
coherent architecture. In this case the DMA ops is made of:
- specific functions for this architecture
- already exposed arm DMA related functions
- the arm_dma_set_mask which was not exposed yet.
Signed-off-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
parent 45f5984a
......@@ -111,6 +111,8 @@ static inline void dma_free_noncoherent(struct device *dev, size_t size,
extern int dma_supported(struct device *dev, u64 mask);
extern int arm_dma_set_mask(struct device *dev, u64 dma_mask);
/**
* arm_dma_alloc - allocate consistent memory for DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
......
......@@ -124,8 +124,6 @@ static void arm_dma_sync_single_for_device(struct device *dev,
__dma_page_cpu_to_dev(page, offset, size, dir);
}
static int arm_dma_set_mask(struct device *dev, u64 dma_mask);
struct dma_map_ops arm_dma_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
......@@ -971,7 +969,7 @@ int dma_supported(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_supported);
static int arm_dma_set_mask(struct device *dev, u64 dma_mask)
int arm_dma_set_mask(struct device *dev, u64 dma_mask)
{
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment