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This patch replaces ARM-specific IOMMU-based DMA-mapping implementation with generic IOMMU DMA-mapping code shared with ARM64 architecture. The side-effect of this change is a switch from bitmap-based IO address space management to tree-based code. There should be no functional changes for drivers, which rely on initialization from generic arch_setup_dna_ops() interface. Code, which used old arm_iommu_* functions must be updated to new interface. To avoid build failed on ARCH arm,we mannually fix the following two files that to use arch_set_dma_ops API arch/arm/mach-highbank/highbank.c arch/arm/mach-mvebu/coherency.c Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Conflicts: arch/arm/mm/dma-mapping.c Change-Id: Iffad16a7a511d50cc8e422bc61497f117279c66d Signed-off-by: Simon <xxm@rock-chips.com> Signed-off-by: Mark Yao <mark.yao@rock-chips.com> (am from https://patchwork.freedesktop.org/patch/74409/)
29 lines
475 B
C
29 lines
475 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 ASMARM_DEVICE_H
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#define ASMARM_DEVICE_H
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struct dev_archdata {
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struct dma_map_ops *dma_ops;
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#ifdef CONFIG_DMABOUNCE
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struct dmabounce_device_info *dmabounce;
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#endif
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#ifdef CONFIG_IOMMU_API
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void *iommu; /* private IOMMU data */
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#endif
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bool dma_coherent;
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};
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struct omap_device;
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struct pdev_archdata {
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#ifdef CONFIG_ARCH_OMAP
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struct omap_device *od;
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#endif
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};
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#endif
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