iommu: Add apply_dm_region call-back to iommu-ops
This new call-back will be used by the iommu driver to do reserve the given dm_region in its iova space before the mapping is created. The call-back is temporary until the dma-ops implementation is part of the common iommu code. Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
parent
b548e786ce
commit
33b21a6b20
|
@ -348,6 +348,9 @@ static int iommu_group_create_direct_mappings(struct iommu_group *group,
|
|||
list_for_each_entry(entry, &mappings, list) {
|
||||
dma_addr_t start, end, addr;
|
||||
|
||||
if (domain->ops->apply_dm_region)
|
||||
domain->ops->apply_dm_region(dev, domain, entry);
|
||||
|
||||
start = ALIGN(entry->start, pg_size);
|
||||
end = ALIGN(entry->start + entry->length, pg_size);
|
||||
|
||||
|
|
|
@ -152,6 +152,7 @@ struct iommu_dm_region {
|
|||
* @domain_set_attr: Change domain attributes
|
||||
* @get_dm_regions: Request list of direct mapping requirements for a device
|
||||
* @put_dm_regions: Free list of direct mapping requirements for a device
|
||||
* @apply_dm_region: Temporary helper call-back for iova reserved ranges
|
||||
* @domain_window_enable: Configure and enable a particular window for a domain
|
||||
* @domain_window_disable: Disable a particular window for a domain
|
||||
* @domain_set_windows: Set the number of windows for a domain
|
||||
|
@ -186,6 +187,8 @@ struct iommu_ops {
|
|||
/* Request/Free a list of direct mapping requirements for a device */
|
||||
void (*get_dm_regions)(struct device *dev, struct list_head *list);
|
||||
void (*put_dm_regions)(struct device *dev, struct list_head *list);
|
||||
void (*apply_dm_region)(struct device *dev, struct iommu_domain *domain,
|
||||
struct iommu_dm_region *region);
|
||||
|
||||
/* Window handling functions */
|
||||
int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr,
|
||||
|
|
Loading…
Reference in a new issue