diff options
| author | Eric Auger <eric.auger@redhat.com> | 2017-01-19 23:57:47 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-01-23 14:48:16 +0300 |
| commit | e5b5234a36ca283158721d3d2e0cddfa324abdf9 (patch) | |
| tree | ea96d338820402dc371f2a60b526b973a543f9a3 /drivers/iommu/iommu.c | |
| parent | fdbe574eb69312a7fbe09674d69c01b80e4ed9dc (diff) | |
| download | linux-e5b5234a36ca283158721d3d2e0cddfa324abdf9.tar.xz | |
iommu: Rename iommu_dm_regions into iommu_resv_regions
We want to extend the callbacks used for dm regions and
use them for reserved regions. Reserved regions can be
- directly mapped regions
- regions that cannot be iommu mapped (PCI host bridge windows, ...)
- MSI regions (because they belong to another address space or because
they are not translated by the IOMMU and need special handling)
So let's rename the struct and also the callbacks.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
Tested-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
Tested-by: Bharat Bhushan <bharat.bhushan@nxp.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index dbe7f653bb7c..1cee5c361c21 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -318,7 +318,7 @@ static int iommu_group_create_direct_mappings(struct iommu_group *group, struct device *dev) { struct iommu_domain *domain = group->default_domain; - struct iommu_dm_region *entry; + struct iommu_resv_region *entry; struct list_head mappings; unsigned long pg_size; int ret = 0; @@ -331,14 +331,14 @@ static int iommu_group_create_direct_mappings(struct iommu_group *group, pg_size = 1UL << __ffs(domain->pgsize_bitmap); INIT_LIST_HEAD(&mappings); - iommu_get_dm_regions(dev, &mappings); + iommu_get_resv_regions(dev, &mappings); /* We need to consider overlapping regions for different devices */ 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); + if (domain->ops->apply_resv_region) + domain->ops->apply_resv_region(dev, domain, entry); start = ALIGN(entry->start, pg_size); end = ALIGN(entry->start + entry->length, pg_size); @@ -358,7 +358,7 @@ static int iommu_group_create_direct_mappings(struct iommu_group *group, } out: - iommu_put_dm_regions(dev, &mappings); + iommu_put_resv_regions(dev, &mappings); return ret; } @@ -1559,20 +1559,20 @@ int iommu_domain_set_attr(struct iommu_domain *domain, } EXPORT_SYMBOL_GPL(iommu_domain_set_attr); -void iommu_get_dm_regions(struct device *dev, struct list_head *list) +void iommu_get_resv_regions(struct device *dev, struct list_head *list) { const struct iommu_ops *ops = dev->bus->iommu_ops; - if (ops && ops->get_dm_regions) - ops->get_dm_regions(dev, list); + if (ops && ops->get_resv_regions) + ops->get_resv_regions(dev, list); } -void iommu_put_dm_regions(struct device *dev, struct list_head *list) +void iommu_put_resv_regions(struct device *dev, struct list_head *list) { const struct iommu_ops *ops = dev->bus->iommu_ops; - if (ops && ops->put_dm_regions) - ops->put_dm_regions(dev, list); + if (ops && ops->put_resv_regions) + ops->put_resv_regions(dev, list); } /* Request that a device is direct mapped by the IOMMU */ |