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iommu/core: Convert iommu_found to iommu_present

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With per-bus iommu_ops the iommu_found function needs to
work on a bus_type too. This patch adds a bus_type parameter
to that function and converts all call-places.
The function is also renamed to iommu_present because the
function now checks if an iommu is present for a given bus
and does not check for a global iommu anymore.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2011-09-06 18:46:34 +02:00
parent 905d66c1e5
commit a1b60c1cd9
5 changed files with 13 additions and 8 deletions
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4
include/linux/iommu.h
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@ -56,7 +56,7 @@ 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 bool iommu_present(struct bus_type *bus);
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,
@ -76,7 +76,7 @@ extern int iommu_domain_has_cap(struct iommu_domain *domain,
struct iommu_ops {};
static inline bool iommu_found(void)
static inline bool iommu_present(struct bus_type *bus)
{
return false;
}