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Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 0eef096183e8..f7df4aa527f3 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -37,11 +37,18 @@ struct iommu_domain;
typedef int (*iommu_fault_handler_t)(struct iommu_domain *,
struct device *, unsigned long, int, void *);
+struct iommu_domain_geometry {
+ dma_addr_t aperture_start; /* First address that can be mapped */
+ dma_addr_t aperture_end; /* Last address that can be mapped */
+ bool force_aperture; /* DMA only allowed in mappable range? */
+};
+
struct iommu_domain {
struct iommu_ops *ops;
void *priv;
iommu_fault_handler_t handler;
void *handler_token;
+ struct iommu_domain_geometry geometry;
};
#define IOMMU_CAP_CACHE_COHERENCY 0x1
@@ -49,6 +56,7 @@ struct iommu_domain {
enum iommu_attr {
DOMAIN_ATTR_MAX,
+ DOMAIN_ATTR_GEOMETRY,
};
#ifdef CONFIG_IOMMU_API