diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 11 | ||||
| -rw-r--r-- | drivers/iommu/tegra-smmu.c | 4 |
2 files changed, 10 insertions, 5 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index f7fd3d0aeb4..c2c07a4a7f2 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -1827,10 +1827,17 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, if (!pte) return -ENOMEM; /* It is large page*/ - if (largepage_lvl > 1) + if (largepage_lvl > 1) { pteval |= DMA_PTE_LARGE_PAGE; - else + /* Ensure that old small page tables are removed to make room + for superpage, if they exist. */ + dma_pte_clear_range(domain, iov_pfn, + iov_pfn + lvl_to_nr_pages(largepage_lvl) - 1); + dma_pte_free_pagetable(domain, iov_pfn, + iov_pfn + lvl_to_nr_pages(largepage_lvl) - 1); + } else { pteval &= ~(uint64_t)DMA_PTE_LARGE_PAGE; + } } /* We don't need lock here, nobody else diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 843123acbb8..25c1210c083 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -34,13 +34,11 @@ #include <linux/of_iommu.h> #include <linux/debugfs.h> #include <linux/seq_file.h> +#include <linux/tegra-ahb.h> #include <asm/page.h> #include <asm/cacheflush.h> -#include <mach/iomap.h> -#include <mach/tegra-ahb.h> - enum smmu_hwgrp { HWGRP_AFI, HWGRP_AVPC, |