f6aedd8606
Also add a comment to dev_archdata, indicating that changes there need to be verified against the driver code. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
40 lines
789 B
C
40 lines
789 B
C
/*
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* Arch specific extensions to struct device
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*
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* This file is released under the GPLv2
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*/
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#ifndef _ASM_POWERPC_DEVICE_H
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#define _ASM_POWERPC_DEVICE_H
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struct dma_map_ops;
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struct device_node;
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/*
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* Arch extensions to struct device.
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*
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* When adding fields, consider macio_add_one_device in
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* drivers/macintosh/macio_asic.c
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*/
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struct dev_archdata {
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/* DMA operations on that device */
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struct dma_map_ops *dma_ops;
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/*
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* When an iommu is in use, dma_data is used as a ptr to the base of the
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* iommu_table. Otherwise, it is a simple numerical offset.
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*/
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union {
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dma_addr_t dma_offset;
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void *iommu_table_base;
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} dma_data;
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#ifdef CONFIG_SWIOTLB
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dma_addr_t max_direct_dma_addr;
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#endif
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};
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struct pdev_archdata {
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u64 dma_mask;
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};
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#endif /* _ASM_POWERPC_DEVICE_H */
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