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iommu/amd: Implement DOMAIN_ATTR_GEOMETRY attribute

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Implement the attribute itself and add the code for the
AMD IOMMU driver.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2012-01-26 19:40:53 +01:00
parent 0cd76dd13b
commit 0ff64f80e0
3 changed files with 28 additions and 3 deletions
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8
include/linux/iommu.h
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@ -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