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authorJoerg Roedel <jroedel@suse.de>2017-02-01 16:56:46 +0100
committerJoerg Roedel <jroedel@suse.de>2017-02-10 13:44:57 +0100
commit39ab9555c24110671f8dc671311a26e5c985b592 (patch)
tree3b2a4fc649308a7116b48a0ce3a415ac28b814c2 /include
parentb0119e870837dcd15a207b4701542ebac5d19b45 (diff)
downloadlinux-39ab9555c24110671f8dc671311a26e5c985b592.tar.bz2
iommu: Add sysfs bindings for struct iommu_device
There is currently support for iommu sysfs bindings, but those need to be implemented in the IOMMU drivers. Add a more generic version of this by adding a struct device to struct iommu_device and use that for the sysfs bindings. Also convert the AMD and Intel IOMMU driver to make use of it. Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/linux/intel-iommu.h1
-rw-r--r--include/linux/iommu.h33
2 files changed, 18 insertions, 16 deletions
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 99a65a397861..3ba9b536387b 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -440,7 +440,6 @@ struct intel_iommu {
struct irq_domain *ir_domain;
struct irq_domain *ir_msi_domain;
#endif
- struct device *iommu_dev; /* IOMMU-sysfs device */
struct iommu_device iommu; /* IOMMU core code handle */
int node;
u32 flags; /* Software defined flags */
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 900ddd212364..c578ca135bed 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -209,14 +209,21 @@ struct iommu_ops {
* instance
* @list: Used by the iommu-core to keep a list of registered iommus
* @ops: iommu-ops for talking to this iommu
+ * @dev: struct device for sysfs handling
*/
struct iommu_device {
struct list_head list;
const struct iommu_ops *ops;
+ struct device dev;
};
int iommu_device_register(struct iommu_device *iommu);
void iommu_device_unregister(struct iommu_device *iommu);
+int iommu_device_sysfs_add(struct iommu_device *iommu,
+ struct device *parent,
+ const struct attribute_group **groups,
+ const char *fmt, ...) __printf(4, 5);
+void iommu_device_sysfs_remove(struct iommu_device *iommu);
static inline void iommu_device_set_ops(struct iommu_device *iommu,
const struct iommu_ops *ops)
@@ -287,10 +294,6 @@ extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr,
void *data);
extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr,
void *data);
-struct device *iommu_device_create(struct device *parent, void *drvdata,
- const struct attribute_group **groups,
- const char *fmt, ...) __printf(4, 5);
-void iommu_device_destroy(struct device *dev);
int iommu_device_link(struct device *dev, struct device *link);
void iommu_device_unlink(struct device *dev, struct device *link);
@@ -567,29 +570,29 @@ static inline int iommu_domain_set_attr(struct iommu_domain *domain,
return -EINVAL;
}
-static inline struct device *iommu_device_create(struct device *parent,
- void *drvdata,
- const struct attribute_group **groups,
- const char *fmt, ...)
+static inline int iommu_device_register(struct iommu_device *iommu)
{
- return ERR_PTR(-ENODEV);
+ return -ENODEV;
}
-static inline void iommu_device_destroy(struct device *dev)
+static inline void iommu_device_set_ops(struct iommu_device *iommu,
+ const struct iommu_ops *ops)
{
}
-static inline int iommu_device_register(struct iommu_device *iommu)
+static inline void iommu_device_unregister(struct iommu_device *iommu)
{
- return -ENODEV;
}
-static inline void iommu_device_set_ops(struct iommu_device *iommu,
- const struct iommu_ops *ops)
+static inline int iommu_device_sysfs_add(struct iommu_device *iommu,
+ struct device *parent,
+ const struct attribute_group **groups,
+ const char *fmt, ...)
{
+ return -ENODEV;
}
-static inline void iommu_device_unregister(struct iommu_device *iommu)
+static inline void iommu_device_sysfs_remove(struct iommu_device *iommu)
{
}