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authorJoerg Roedel <jroedel@suse.de>2014-09-03 18:47:25 +0200
committerJoerg Roedel <jroedel@suse.de>2014-09-25 15:44:49 +0200
commit3c0e0ca0a4e757159d868c4870556515d66b6c97 (patch)
tree2edcb98cf5ab39daa4423054870030c81dd399ec /include/linux/iommu.h
parent1aed074869a9cbe0a846ea7b254d8fd9a4a4d31f (diff)
downloadop-kernel-dev-3c0e0ca0a4e757159d868c4870556515d66b6c97.zip
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iommu: Introduce iommu_capable API function
This function will replace the current iommu_domain_has_cap function and clean up the interface while at it. Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 98fc126..d5534d5 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -105,6 +105,7 @@ enum iommu_attr {
* @pgsize_bitmap: bitmap of supported page sizes
*/
struct iommu_ops {
+ bool (*capable)(enum iommu_cap);
int (*domain_init)(struct iommu_domain *domain);
void (*domain_destroy)(struct iommu_domain *domain);
int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
@@ -145,6 +146,7 @@ struct iommu_ops {
extern int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops);
extern bool iommu_present(struct bus_type *bus);
+extern bool iommu_capable(struct bus_type *bus, enum iommu_cap cap);
extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus);
extern struct iommu_group *iommu_group_get_by_id(int id);
extern void iommu_domain_free(struct iommu_domain *domain);
@@ -253,6 +255,11 @@ static inline bool iommu_present(struct bus_type *bus)
return false;
}
+static inline bool iommu_capable(struct bus_type *bus, enum iommu_cap cap)
+{
+ return false;
+}
+
static inline struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
{
return NULL;
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