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FROMLIST: iommu: Export core IOMMU functions to kernel modules

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IOMMU drivers that can be compiled as modules need to use
some of the IOMMU core functions, so expose them.

Change-Id: I84004fdcd7eee3f56d08db76c3b0421990179810
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
Bug: 140290589
Link: https://patchwork.kernel.org/patch/10948413/
This commit is contained in:
Isaac J. Manjarres
2019-09-10 15:41:16 -07:00
parent c32fef399d
commit 82047fdd5d
2 changed files with 9 additions and 0 deletions
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3
drivers/iommu/iommu-sysfs.c
View File

@@ -87,6 +87,7 @@ error:
put_device(iommu->dev);
return ret;
}
EXPORT_SYMBOL_GPL(iommu_device_sysfs_add);
void iommu_device_sysfs_remove(struct iommu_device *iommu)
{
@@ -119,6 +120,7 @@ int iommu_device_link(struct iommu_device *iommu, struct device *link)
return ret;
}
EXPORT_SYMBOL_GPL(iommu_device_link);
void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
{
@@ -128,3 +130,4 @@ void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
sysfs_remove_link(&link->kobj, "iommu");
sysfs_remove_link_from_group(&iommu->dev->kobj, "devices", dev_name(link));
}
EXPORT_SYMBOL_GPL(iommu_device_unlink);

6
drivers/iommu/iommu.c
View File

@@ -141,6 +141,7 @@ int iommu_device_register(struct iommu_device *iommu)
spin_unlock(&iommu_device_lock);
return 0;
}
EXPORT_SYMBOL_GPL(iommu_device_register);
void iommu_device_unregister(struct iommu_device *iommu)
{
@@ -886,6 +887,7 @@ struct iommu_group *iommu_group_ref_get(struct iommu_group *group)
kobject_get(group->devices_kobj);
return group;
}
EXPORT_SYMBOL_GPL(iommu_group_ref_get);
/**
* iommu_group_put - Decrement group reference
@@ -1259,6 +1261,7 @@ struct iommu_group *generic_device_group(struct device *dev)
{
return iommu_group_alloc();
}
EXPORT_SYMBOL_GPL(generic_device_group);
/*
* Use standard PCI bus topology, isolation features, and DMA alias quirks
@@ -1326,6 +1329,7 @@ struct iommu_group *pci_device_group(struct device *dev)
/* No shared group found, allocate new */
return iommu_group_alloc();
}
EXPORT_SYMBOL_GPL(pci_device_group);
/* Get the IOMMU group for device on fsl-mc bus */
struct iommu_group *fsl_mc_device_group(struct device *dev)
@@ -1406,6 +1410,7 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev)
return group;
}
EXPORT_SYMBOL_GPL(iommu_group_get_for_dev);
struct iommu_domain *iommu_group_default_domain(struct iommu_group *group)
{
@@ -2185,6 +2190,7 @@ struct iommu_resv_region *iommu_alloc_resv_region(phys_addr_t start,
region->type = type;
return region;
}
EXPORT_SYMBOL_GPL(iommu_alloc_resv_region);
static int
request_default_domain_for_dev(struct device *dev, unsigned long type)