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iommu: Remove domain_init and domain_free iommu_ops 

All drivers have been converted to the new domain_alloc and
domain_free iommu-ops. So remove the old ones and get rid of
iommu_domain->priv too, as this is no longer needed when the
struct iommu_domain is embedded in the private structures of
the iommu drivers.

Tested-by: Thierry Reding <treding@nvidia.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
hifive-unleashed-5.1
Joerg Roedel 2015-03-26 13:43:19 +01:00
parent 8d4bfe40bd
commit 89be34a1ce
2 changed files with 2 additions and 31 deletions
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30
drivers/iommu/iommu.c
View File

@ -900,51 +900,25 @@ EXPORT_SYMBOL_GPL(iommu_set_fault_handler);
struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
{
const struct iommu_ops *ops;
struct iommu_domain *domain;
if (bus == NULL || bus->iommu_ops == NULL)
return NULL;
ops = bus->iommu_ops;
if (ops->domain_alloc)
domain = ops->domain_alloc(IOMMU_DOMAIN_UNMANAGED);
else
domain = kzalloc(sizeof(*domain), GFP_KERNEL);
domain = bus->iommu_ops->domain_alloc(IOMMU_DOMAIN_UNMANAGED);
if (!domain)
return NULL;
domain->ops = bus->iommu_ops;
domain->type = IOMMU_DOMAIN_UNMANAGED;
if (ops->domain_init && domain->ops->domain_init(domain))
goto out_free;
return domain;
out_free:
if (ops->domain_free)
ops->domain_free(domain);
else
kfree(domain);
return NULL;
}
EXPORT_SYMBOL_GPL(iommu_domain_alloc);
void iommu_domain_free(struct iommu_domain *domain)
{
const struct iommu_ops *ops = domain->ops;
if (likely(ops->domain_destroy != NULL))
ops->domain_destroy(domain);
if (ops->domain_free)
ops->domain_free(domain);
else
kfree(domain);
domain->ops->domain_free(domain);
}
EXPORT_SYMBOL_GPL(iommu_domain_free);

3
include/linux/iommu.h
View File

@ -78,7 +78,6 @@ struct iommu_domain_geometry {
struct iommu_domain {
unsigned type;
const struct iommu_ops *ops;
void *priv;
iommu_fault_handler_t handler;
void *handler_token;
struct iommu_domain_geometry geometry;
@ -138,8 +137,6 @@ enum iommu_attr {
*/
struct iommu_ops {
bool (*capable)(enum iommu_cap);
int (*domain_init)(struct iommu_domain *domain);
void (*domain_destroy)(struct iommu_domain *domain);
/* Domain allocation and freeing by the iommu driver */
struct iommu_domain *(*domain_alloc)(unsigned iommu_domain_type);