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| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-11-29 23:42:27 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-02 19:04:39 +0300 |
| commit | 90337f526c98129b0b180fc52dc5f57d8e7a8614 (patch) | |
| tree | d7458a03027cde56b8191f656dc5cdf1531a767d /drivers/iommu/intel/iommu.c | |
| parent | 169dd5c987e60e62aa5785b30d22ded2ae000286 (diff) | |
| parent | b7b275e60bcd5f89771e865a8239325f86d9927d (diff) | |
| download | linux-90337f526c98129b0b180fc52dc5f57d8e7a8614.tar.xz | |
Merge tag 'v6.1-rc7' into iommufd.git for-next
Resolve conflicts in drivers/vfio/vfio_main.c by using the iommfd version.
The rc fix was done a different way when iommufd patches reworked this
code.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/iommu/intel/iommu.c')
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 157c97274110..ebe44a07c4b0 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -959,11 +959,9 @@ static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain, domain_flush_cache(domain, tmp_page, VTD_PAGE_SIZE); pteval = ((uint64_t)virt_to_dma_pfn(tmp_page) << VTD_PAGE_SHIFT) | DMA_PTE_READ | DMA_PTE_WRITE; - if (domain_use_first_level(domain)) { - pteval |= DMA_FL_PTE_XD | DMA_FL_PTE_US; - if (iommu_is_dma_domain(&domain->domain)) - pteval |= DMA_FL_PTE_ACCESS; - } + if (domain_use_first_level(domain)) + pteval |= DMA_FL_PTE_XD | DMA_FL_PTE_US | DMA_FL_PTE_ACCESS; + if (cmpxchg64(&pte->val, 0ULL, pteval)) /* Someone else set it while we were thinking; use theirs. */ free_pgtable_page(tmp_page); |