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iommu/virtio: Drop IOVA cookie management 

The core code bakes its own cookies now.

Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/f05cd2d0a0f414de3180e2536c7656faf1e52418.1628682049.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Robin Murphy 2021-08-11 13:21:25 +01:00 committed by Joerg Roedel
parent aa6546423a
commit ca84ed7f72
1 changed files with 0 additions and 8 deletions
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8
drivers/iommu/virtio-iommu.c
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@ -598,12 +598,6 @@ static struct iommu_domain *viommu_domain_alloc(unsigned type)
spin_lock_init(&vdomain->mappings_lock);
vdomain->mappings = RB_ROOT_CACHED;
if (type == IOMMU_DOMAIN_DMA &&
iommu_get_dma_cookie(&vdomain->domain)) {
kfree(vdomain);
return NULL;
}
return &vdomain->domain;
}
@ -643,8 +637,6 @@ static void viommu_domain_free(struct iommu_domain *domain)
{
struct viommu_domain *vdomain = to_viommu_domain(domain);
iommu_put_dma_cookie(domain);
/* Free all remaining mappings (size 2^64) */
viommu_del_mappings(vdomain, 0, 0);