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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-11-24 09:28:05 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-11-24 09:28:05 +0100 |
| commit | 1e5b3968a57d7894d5f86a2ecb58fa057cb6f7b2 (patch) | |
| tree | a1beadf663bf4a318cccbfba8b4679b5fd0991c7 /drivers/iommu/intel/iommu.c | |
| parent | 6fb6c979ca628583d4d0c59a0f8ff977e581ecc0 (diff) | |
| parent | d47f9580839eb6fe568e38b2084d94887fbf5ce0 (diff) | |
Merge drm/drm-next into drm-misc-next
Backmerging to get v6.1-rc6 into drm-misc-next.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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 48cdcd0a5cf3..996a8b5ee5ee 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); |