On Fri, May 29, 2015 at 12:14:42PM -0500, wdavis@xxxxxxxxxx wrote:
> From: Will Davis <wdavis@xxxxxxxxxx>
>
> Simply route these through to the new dma_(un)map_resource APIs.
>
> Signed-off-by: Will Davis <wdavis@xxxxxxxxxx>
> Reviewed-by: Terence Ripperda <tripperda@xxxxxxxxxx>
> Reviewed-by: John Hubbard <jhubbard@xxxxxxxxxx>
> ---
> include/asm-generic/pci-dma-compat.h | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/include/asm-generic/pci-dma-compat.h b/include/asm-generic/pci-dma-compat.h
> index c110843..ac4a4ad 100644
> --- a/include/asm-generic/pci-dma-compat.h
> +++ b/include/asm-generic/pci-dma-compat.h
> @@ -61,6 +61,20 @@ pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
> dma_unmap_page(hwdev == NULL ? NULL : &hwdev->dev, dma_address, size, (enum dma_data_direction)direction);
> }
>
> +static inline dma_addr_t
> +pci_map_resource(struct pci_dev *hwdev, struct resource *resource,
> + unsigned long offset, size_t size, int direction)
After 3a9ad0b4fdcd ("PCI: Add pci_bus_addr_t"), which will appear in
v4.2-rc1, there is a pci_bus_addr_t, and I think you need that instead
of dma_addr_t.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a9ad0b4fdcd
> +{
> + return dma_map_resource(hwdev == NULL ? NULL : &hwdev->dev, resource, offset, size, (enum dma_data_direction)direction);
> +}
> +
> +static inline void
> +pci_unmap_resource(struct pci_dev *hwdev, dma_addr_t dma_address, size_t size,
> + int direction)
> +{
> + dma_unmap_resource(hwdev == NULL ? NULL : &hwdev->dev, dma_address, size, (enum dma_data_direction)direction);
> +}
> +
> static inline int
> pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
> int nents, int direction)
> --
> 2.4.0
>
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