Messages in this thread | | | From | Laurent Pinchart <> | Subject | Re: [PATCH v3 2/8] dma-mapping: add {map,unmap}_resource to dma_map_ops | Date | Thu, 11 Feb 2016 02:03:40 +0200 |
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Hi Niklas,
Thank you for the patch.
On Wednesday 10 February 2016 01:57:52 Niklas Söderlund wrote: > Add methods to handle mapping of device resources from a physical > address. This is needed for example to map be able to map MMIO FIFO > registers to a IOMMU. > > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Apart from the typo in the commit message that Sergei already pointed out,
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> --- > include/linux/dma-mapping.h | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h > index 75857cd..e3aba4e 100644 > --- a/include/linux/dma-mapping.h > +++ b/include/linux/dma-mapping.h > @@ -49,6 +49,12 @@ struct dma_map_ops { > struct scatterlist *sg, int nents, > enum dma_data_direction dir, > struct dma_attrs *attrs); > + dma_addr_t (*map_resource)(struct device *dev, phys_addr_t phys_addr, > + size_t size, enum dma_data_direction dir, > + struct dma_attrs *attrs); > + void (*unmap_resource)(struct device *dev, dma_addr_t dma_handle, > + size_t size, enum dma_data_direction dir, > + struct dma_attrs *attrs); > void (*sync_single_for_cpu)(struct device *dev, > dma_addr_t dma_handle, size_t size, > enum dma_data_direction dir);
-- Regards,
Laurent Pinchart
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