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| author | Joerg Roedel <jroedel@suse.de> | 2016-07-07 15:57:04 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-07-14 10:21:16 +0200 |
| commit | cda7005ba2cbd0744fea343dd5b2aa637eba5b9e (patch) | |
| tree | e065d0850efe345528c1df6932dd7baa912e80da /drivers/iommu | |
| parent | d26592a93ddb7a73cbd82b08e2e0d2985d68d750 (diff) | |
| download | linux-cda7005ba2cbd0744fea343dd5b2aa637eba5b9e.tar.gz linux-cda7005ba2cbd0744fea343dd5b2aa637eba5b9e.tar.bz2 linux-cda7005ba2cbd0744fea343dd5b2aa637eba5b9e.zip | |
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.c | 25 |
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, |