diff mbox series

[v4,02/24] iommu/amd: Drop IOVA cookie management

Message ID 648e74e7422caa6a7db7fb0c36813c7bd2007af8.1628682048.git.robin.murphy@arm.com (mailing list archive)
State New, archived
Headers show
Series iommu: Refactor DMA domain strictness | expand

Commit Message

Robin Murphy Aug. 11, 2021, 12:21 p.m. UTC 
The core code bakes its own cookies now.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 drivers/iommu/amd/iommu.c | 12 ------------
 1 file changed, 12 deletions(-)
diff mbox series

Patch

diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 52fe2326042a..0fd98d35d73b 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1918,16 +1918,7 @@  static struct iommu_domain *amd_iommu_domain_alloc(unsigned type)
 	domain->domain.geometry.aperture_end   = ~0ULL;
 	domain->domain.geometry.force_aperture = true;
 
-	if (type == IOMMU_DOMAIN_DMA &&
-	    iommu_get_dma_cookie(&domain->domain) == -ENOMEM)
-		goto free_domain;
-
 	return &domain->domain;
-
-free_domain:
-	protection_domain_free(domain);
-
-	return NULL;
 }
 
 static void amd_iommu_domain_free(struct iommu_domain *dom)
@@ -1944,9 +1935,6 @@  static void amd_iommu_domain_free(struct iommu_domain *dom)
 	if (!dom)
 		return;
 
-	if (dom->type == IOMMU_DOMAIN_DMA)
-		iommu_put_dma_cookie(&domain->domain);
-
 	if (domain->flags & PD_IOMMUV2_MASK)
 		free_gcr3_table(domain);