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arm64: consolidate __swiotlb_mmap

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Since commit 9d3bfbb4df ("arm64: Combine coherent and non-coherent
swiotlb dma_ops"), __dma_common_mmap is no longer shared between two
callers, so roll it into the remaining one.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Robin Murphy 2015-07-10 16:47:56 +01:00 committed by Will Deacon
parent d3127afa71
commit aaf6f2f098
1 changed files with 7 additions and 13 deletions
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20
arch/arm64/mm/dma-mapping.c
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@ -303,9 +303,10 @@ static void __swiotlb_sync_sg_for_device(struct device *dev,
sg->length, dir);
}
/* vma->vm_page_prot must be set appropriately before calling this function */
static int __dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size)
static int __swiotlb_mmap(struct device *dev,
struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
struct dma_attrs *attrs)
{
int ret = -ENXIO;
unsigned long nr_vma_pages = (vma->vm_end - vma->vm_start) >>
@ -314,6 +315,9 @@ static int __dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
unsigned long pfn = dma_to_phys(dev, dma_addr) >> PAGE_SHIFT;
unsigned long off = vma->vm_pgoff;
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
is_device_dma_coherent(dev));
if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
@ -327,16 +331,6 @@ static int __dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
return ret;
}
static int __swiotlb_mmap(struct device *dev,
struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
struct dma_attrs *attrs)
{
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
is_device_dma_coherent(dev));
return __dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
}
static struct dma_map_ops swiotlb_dma_ops = {
.alloc = __dma_alloc,
.free = __dma_free,