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- #ifndef _IOMMU_H
- #define _IOMMU_H 1
- #include <linux/pci.h>
- struct parisc_device;
- struct ioc;
- static inline struct pci_hba_data *parisc_walk_tree(struct device *dev)
- {
- struct device *otherdev;
- if (likely(dev->platform_data))
- return dev->platform_data;
- /* OK, just traverse the bus to find it */
- for (otherdev = dev->parent;
- otherdev;
- otherdev = otherdev->parent) {
- if (otherdev->platform_data) {
- dev->platform_data = otherdev->platform_data;
- break;
- }
- }
- return dev->platform_data;
- }
- static inline struct ioc *GET_IOC(struct device *dev)
- {
- struct pci_hba_data *pdata = parisc_walk_tree(dev);
- if (!pdata)
- return NULL;
- return pdata->iommu;
- }
- #ifdef CONFIG_IOMMU_CCIO
- void *ccio_get_iommu(const struct parisc_device *dev);
- int ccio_request_resource(const struct parisc_device *dev,
- struct resource *res);
- int ccio_allocate_resource(const struct parisc_device *dev,
- struct resource *res, unsigned long size,
- unsigned long min, unsigned long max, unsigned long align);
- #else /* !CONFIG_IOMMU_CCIO */
- #define ccio_get_iommu(dev) NULL
- #define ccio_request_resource(dev, res) insert_resource(&iomem_resource, res)
- #define ccio_allocate_resource(dev, res, size, min, max, align) \
- allocate_resource(&iomem_resource, res, size, min, max, \
- align, NULL, NULL)
- #endif /* !CONFIG_IOMMU_CCIO */
- void *sba_get_iommu(struct parisc_device *dev);
- #endif /* _IOMMU_H */
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