iommu-api: Add ->{un}map callbacks to iommu_ops
This patch adds new callbacks for mapping and unmapping pages to the iommu_ops structure. These callbacks are aware of page sizes which makes them different to the ->{un}map_range callbacks. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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@ -119,6 +119,9 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
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BUG_ON((iova | paddr) & invalid_mask);
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if (iommu_ops->map)
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return iommu_ops->map(domain, iova, paddr, gfp_order, prot);
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return iommu_ops->map_range(domain, iova, paddr, size, prot);
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}
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EXPORT_SYMBOL_GPL(iommu_map);
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@ -133,6 +136,9 @@ int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order)
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BUG_ON(iova & invalid_mask);
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if (iommu_ops->unmap)
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return iommu_ops->unmap(domain, iova, gfp_order);
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iommu_ops->unmap_range(domain, iova, size);
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return gfp_order;
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@ -36,6 +36,10 @@ struct iommu_ops {
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void (*domain_destroy)(struct iommu_domain *domain);
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int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
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void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
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int (*map)(struct iommu_domain *domain, unsigned long iova,
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phys_addr_t paddr, int gfp_order, int prot);
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int (*unmap)(struct iommu_domain *domain, unsigned long iova,
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int gfp_order);
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int (*map_range)(struct iommu_domain *domain, unsigned long iova,
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phys_addr_t paddr, size_t size, int prot);
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void (*unmap_range)(struct iommu_domain *domain, unsigned long iova,
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