iommu/vt-d: Drop IOVA cookie management

The core code bakes its own cookies now.

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/e9dbe3b6108f8538e17e0c5f59f8feeb714f51a4.1628682048.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index c12cc95..7e16863 100644 (file)
--- 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   =