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iommu/core: Add bus_type parameter to iommu_domain_alloc

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This is necessary to store a pointer to the bus-specific
iommu_ops in the iommu-domain structure. It will be used
later to call into bus-specific iommu-ops.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel
2011-09-06 16:03:26 +02:00
parent ff21776d12
commit 905d66c1e5
4 changed files with 19 additions and 5 deletions
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6
include/linux/iommu.h
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@@ -25,10 +25,12 @@
#define IOMMU_WRITE (2)
#define IOMMU_CACHE (4) /* DMA cache coherency */
struct iommu_ops;
struct bus_type;
struct device;
struct iommu_domain {
struct iommu_ops *ops;
void *priv;
};
@@ -55,7 +57,7 @@ struct iommu_ops {
extern void register_iommu(struct iommu_ops *ops);
extern int bus_set_iommu(struct bus_type *bus, struct iommu_ops *ops);
extern bool iommu_found(void);
extern struct iommu_domain *iommu_domain_alloc(void);
extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus);
extern void iommu_domain_free(struct iommu_domain *domain);
extern int iommu_attach_device(struct iommu_domain *domain,
struct device *dev);
@@ -79,7 +81,7 @@ static inline bool iommu_found(void)
return false;
}
static inline struct iommu_domain *iommu_domain_alloc(void)
static inline struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
{
return NULL;
}