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iommu/amd: Remove PD_DMA_OPS_MASK

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This is covered by IOMMU_DOMAIN_DMA from the IOMMU core code already,
so remove it.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20200527115313.7426-8-joro@8bytes.org
This commit is contained in:
Joerg Roedel 2020-05-27 13:53:10 +02:00
parent 301441a099
commit e1980df36c
1 changed files with 7 additions and 17 deletions
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24
drivers/iommu/amd_iommu.c
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@ -1817,15 +1817,6 @@ static void free_gcr3_table(struct protection_domain *domain)
free_page((unsigned long)domain->gcr3_tbl);
}
/*
* little helper function to check whether a given protection domain is a
* dma_ops domain
*/
static bool dma_ops_domain(struct protection_domain *domain)
{
return domain->flags & PD_DMA_OPS_MASK;
}
static void set_dte_entry(u16 devid, struct protection_domain *domain,
struct domain_pgtable *pgtable,
bool ats, bool ppr)
@ -2408,11 +2399,9 @@ 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) {
if (iommu_get_dma_cookie(&domain->domain) == -ENOMEM)
goto free_domain;
domain->flags = PD_DMA_OPS_MASK;
}
if (type == IOMMU_DOMAIN_DMA &&
iommu_get_dma_cookie(&domain->domain) == -ENOMEM)
goto free_domain;
return &domain->domain;
@ -3024,17 +3013,18 @@ struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev)
if (!check_device(dev))
return NULL;
pdomain = get_dev_data(dev)->domain;
pdomain = get_dev_data(dev)->domain;
io_domain = iommu_get_domain_for_dev(dev);
if (pdomain == NULL && get_dev_data(dev)->defer_attach) {
get_dev_data(dev)->defer_attach = false;
io_domain = iommu_get_domain_for_dev(dev);
pdomain = to_pdomain(io_domain);
attach_device(dev, pdomain);
}
if (pdomain == NULL)
return NULL;
if (!dma_ops_domain(pdomain))
if (io_domain->type != IOMMU_DOMAIN_DMA)
return NULL;
/* Only return IOMMUv2 domains */