Commit 79964a1c authored by Benjamin Gaignard's avatar Benjamin Gaignard Committed by Russell King

ARM: 8633/1: nommu: allow mmap when !CONFIG_MMU

commit ab6494f0 ("nommu: Add noMMU support to the DMA API") have
add CONFIG_MMU compilation flag but that prohibit to use dma_mmap_wc()
when the platform doesn't have MMU.

This patch call vm_iomap_memory() in noMMU case to test if addresses
are correct and set vma->vm_flags rather than all return an error.
Signed-off-by: default avatarBenjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 00a19f3e
...@@ -868,6 +868,9 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma, ...@@ -868,6 +868,9 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma,
vma->vm_end - vma->vm_start, vma->vm_end - vma->vm_start,
vma->vm_page_prot); vma->vm_page_prot);
} }
#else
ret = vm_iomap_memory(vma, vma->vm_start,
(vma->vm_end - vma->vm_start));
#endif /* CONFIG_MMU */ #endif /* CONFIG_MMU */
return ret; return ret;
......
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