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authorJoerg Roedel <jroedel@suse.de>2016-07-07 15:57:04 +0200
committerJoerg Roedel <jroedel@suse.de>2016-07-14 10:21:16 +0200
commitcda7005ba2cbd0744fea343dd5b2aa637eba5b9e (patch)
treee065d0850efe345528c1df6932dd7baa912e80da /drivers/iommu
parentd26592a93ddb7a73cbd82b08e2e0d2985d68d750 (diff)
iommu/amd: Handle IOMMU_DOMAIN_DMA in ops->domain_free call-back
This domain type is not yet handled in the iommu_ops->domain_free() call-back. Fix that. Fixes: 0bb6e243d7fb ('iommu/amd: Support IOMMU_DOMAIN_DMA type allocation') Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/amd_iommu.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 155a3e6f1373..5c72d124403c 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2863,9 +2863,7 @@ static struct iommu_domain *amd_iommu_domain_alloc(unsigned type)
static void amd_iommu_domain_free(struct iommu_domain *dom)
{
struct protection_domain *domain;
-
- if (!dom)
- return;
+ struct dma_ops_domain *dma_dom;
domain = to_pdomain(dom);
@@ -2874,13 +2872,24 @@ static void amd_iommu_domain_free(struct iommu_domain *dom)
BUG_ON(domain->dev_cnt != 0);
- if (domain->mode != PAGE_MODE_NONE)
- free_pagetable(domain);
+ if (!dom)
+ return;
- if (domain->flags & PD_IOMMUV2_MASK)
- free_gcr3_table(domain);
+ switch (dom->type) {
+ case IOMMU_DOMAIN_DMA:
+ dma_dom = domain->priv;
+ dma_ops_domain_free(dma_dom);
+ break;
+ default:
+ if (domain->mode != PAGE_MODE_NONE)
+ free_pagetable(domain);
- protection_domain_free(domain);
+ if (domain->flags & PD_IOMMUV2_MASK)
+ free_gcr3_table(domain);
+
+ protection_domain_free(domain);
+ break;
+ }
}
static void amd_iommu_detach_device(struct iommu_domain *dom,