From 0ff64f80e075ae036a4c80c7d7752b1e07fed792 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 26 Jan 2012 19:40:53 +0100 Subject: iommu/amd: Implement DOMAIN_ATTR_GEOMETRY attribute Implement the attribute itself and add the code for the AMD IOMMU driver. Signed-off-by: Joerg Roedel --- include/linux/iommu.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux/iommu.h') 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 -- cgit v1.2.3-59-g8ed1b