diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/iommu.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/iommu.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 534cd159e9ab..ae6f7a235d8b 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -1650,7 +1650,8 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn) iommu_table_setparms_common(newtbl, pci->phb->bus->number, create.liobn, dynamic_addr, dynamic_len, page_shift, NULL, &iommu_table_lpar_multi_ops); - iommu_init_table(newtbl, pci->phb->node, start, end); + iommu_init_table(newtbl, pci->phb->node, + start >> page_shift, end >> page_shift); pci->table_group->tables[default_win_removed ? 0 : 1] = newtbl; @@ -2065,7 +2066,9 @@ static long spapr_tce_create_table(struct iommu_table_group *table_group, int nu offset, 1UL << window_shift, IOMMU_PAGE_SHIFT_4K, NULL, &iommu_table_lpar_multi_ops); - iommu_init_table(tbl, pci->phb->node, start, end); + iommu_init_table(tbl, pci->phb->node, + start >> IOMMU_PAGE_SHIFT_4K, + end >> IOMMU_PAGE_SHIFT_4K); table_group->tables[0] = tbl; @@ -2136,7 +2139,7 @@ static long spapr_tce_create_table(struct iommu_table_group *table_group, int nu /* New table for using DDW instead of the default DMA window */ iommu_table_setparms_common(tbl, pci->phb->bus->number, create.liobn, win_addr, 1UL << len, page_shift, NULL, &iommu_table_lpar_multi_ops); - iommu_init_table(tbl, pci->phb->node, start, end); + iommu_init_table(tbl, pci->phb->node, start >> page_shift, end >> page_shift); pci->table_group->tables[num] = tbl; set_iommu_table_base(&pdev->dev, tbl); @@ -2205,6 +2208,9 @@ static long spapr_tce_unset_window(struct iommu_table_group *table_group, int nu const char *win_name; int ret = -ENODEV; + if (!tbl) /* The table was never created OR window was never opened */ + return 0; + mutex_lock(&dma_win_init_mutex); if ((num == 0) && is_default_window_table(table_group, tbl)) |