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| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2015-12-15 14:51:17 +0100 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2015-12-15 14:51:17 +0100 |
| commit | e6d111cd909551cec5902358db1e25dcaa8c86bb (patch) | |
| tree | 99673aec563c76a1a4d7ca2d31b90b47549ae40b /drivers/iommu/intel-iommu.c | |
| parent | 1dcb97e485420a25461cc44d43f987c8bbf50e7a (diff) | |
| parent | 07cc49f66973f49a391c91bf4b158fa0f2562ca8 (diff) | |
Merge tag 'v4.1.15' into toradex_vf_4.1-nextColibri_VF_LinuxImageV2.5Beta3_20151215
This is the 4.1.15 stable release
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index c23427951ec1..8b0178db6a04 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2033,15 +2033,19 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, return -ENOMEM; /* It is large page*/ if (largepage_lvl > 1) { + unsigned long nr_superpages, end_pfn; + pteval |= DMA_PTE_LARGE_PAGE; lvl_pages = lvl_to_nr_pages(largepage_lvl); + + nr_superpages = sg_res / lvl_pages; + end_pfn = iov_pfn + nr_superpages * lvl_pages - 1; + /* * Ensure that old small page tables are - * removed to make room for superpage, - * if they exist. + * removed to make room for superpage(s). */ - dma_pte_free_pagetable(domain, iov_pfn, - iov_pfn + lvl_pages - 1); + dma_pte_free_pagetable(domain, iov_pfn, end_pfn); } else { pteval &= ~(uint64_t)DMA_PTE_LARGE_PAGE; } |