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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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