cfb470b336
Add a private iommu pointer to the ARM-specific arch data in the device struct, which will be used to attach iommu-specific data to devices which require iommu support. Different iommu implementations (on different platforms) will attach different types of data to this pointer, so 'void *' is currently used (the downside is reduced typesafety). Note: ia64, x86 and sparc have this exact iommu extension as well, and if others are likely to adopt it too, we might want to consider adding this to the device struct itself directly. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
21 lines
348 B
C
21 lines
348 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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#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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};
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struct pdev_archdata {
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};
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#endif
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