[PATCH v2 04/24] iommu/vt-d: Drop IOVA cookie management

Robin Murphy
2021-07-28T16:01:36Z

The core code bakes its own cookies now.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
drivers/iommu/intel/iommu.c | 8 --------
1 file changed, 8 deletions(-)

diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index c12cc955389a..7e168634c433 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -1979,10 +1979,6 @@ static void domain_exit(struct dmar_domain *domain)
/* Remove associated devices and clear attached or cached domains */
domain_remove_dev_info(domain);

- /* destroy iovas */
- if (domain->domain.type == IOMMU_DOMAIN_DMA)
- iommu_put_dma_cookie(&domain->domain);
-
if (domain->pgd) {
struct page *freelist;

@@ -4544,10 +4540,6 @@ static struct iommu_domain *intel_iommu_domain_alloc(unsigned type)
return NULL;
}

- if (type == IOMMU_DOMAIN_DMA &&
- iommu_get_dma_cookie(&dmar_domain->domain))
- return NULL;
-
domain = &dmar_domain->domain;
domain->geometry.aperture_start = 0;
domain->geometry.aperture_end =
--
2.25.1