diff options
| author | Gary S. Robertson <gary.robertson@linaro.org> | 2015-12-16 20:33:52 -0600 |
|---|---|---|
| committer | Gary S. Robertson <gary.robertson@linaro.org> | 2015-12-16 20:33:52 -0600 |
| commit | 75e2d5300fc98dccb3b99031daf1081a8952a738 (patch) | |
| tree | df130108bbac39067b9ad1cbda2f4fd4116da59e /drivers/iommu/intel-iommu.c | |
| parent | fe7e08f8621d68222f1c65599d8c8d10f0cf5164 (diff) | |
| parent | 6844488aaa6b23d45106c9c3c3ba2f2ee4a612f9 (diff) | |
Merge tag 'lsk-v4.1-15.11' of http://git.linaro.org/kernel/linux-linaro-stable into linux-linaro-lng-v4.1linux-lng-4.1.13-2015.12
LSK 15.11 v4.1
Signed-off-by: Gary S. Robertson <gary.robertson@linaro.org>
Conflicts:
linaro/configs/preempt-rt.conf
linaro/configs/vexpress64.conf
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; } |