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iommu: Introduce new 'struct iommu_device'

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This struct represents one hardware iommu in the iommu core
code. For now it only has the iommu-ops associated with it,
but that will be extended soon.

The register/unregister interface is also added, as well as
making use of it in the Intel and AMD IOMMU drivers.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel
2017-02-01 13:23:08 +01:00
parent c09e22d537
commit b0119e8708
8 changed files with 77 additions and 4 deletions
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4
drivers/iommu/amd_iommu.c
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@@ -112,7 +112,7 @@ static struct timer_list queue_timer;
* Domain for untranslated devices - only allocated
* if iommu=pt passed on kernel cmd line.
*/
static const struct iommu_ops amd_iommu_ops;
const struct iommu_ops amd_iommu_ops;
static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
int amd_iommu_max_glx_val = -1;
@@ -3217,7 +3217,7 @@ static void amd_iommu_apply_dm_region(struct device *dev,
WARN_ON_ONCE(reserve_iova(&dma_dom->iovad, start, end) == NULL);
}
static const struct iommu_ops amd_iommu_ops = {
const struct iommu_ops amd_iommu_ops = {
.capable = amd_iommu_capable,
.domain_alloc = amd_iommu_domain_alloc,
.domain_free = amd_iommu_domain_free,