diff options
Diffstat (limited to 'drivers/iommu/amd/iommu.c')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 80e8e1916dd1..3ac42bbdefc6 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -884,7 +884,7 @@ static inline u64 build_inv_address(u64 address, size_t size) * The msb-bit must be clear on the address. Just set all the * lower bits. */ - address |= 1ull << (msb_diff - 1); + address |= (1ull << msb_diff) - 1; } /* Clear bits 11:0 */ @@ -1714,6 +1714,8 @@ static void amd_iommu_probe_finalize(struct device *dev) domain = iommu_get_domain_for_dev(dev); if (domain->type == IOMMU_DOMAIN_DMA) iommu_setup_dma_ops(dev, IOVA_START_PFN << PAGE_SHIFT, 0); + else + set_dma_ops(dev, NULL); } static void amd_iommu_release_device(struct device *dev) |