diff options
author | David S. Miller <davem@davemloft.net> | 2017-03-15 11:59:10 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2017-03-15 11:59:10 -0700 |
commit | 101c431492d297dd0d111b461d8d324895676bee (patch) | |
tree | 06d8a02a4fd91acdd6c31340452e85feaac4ecb7 /arch/powerpc/platforms/powernv/pci-ioda.c | |
parent | 9c79ddaa0f962d1f26537a670b0652ff509a6fe0 (diff) | |
parent | 95422dec6bd4a7c57444743f7b1bb375335a6298 (diff) | |
download | linux-101c431492d297dd0d111b461d8d324895676bee.tar.gz linux-101c431492d297dd0d111b461d8d324895676bee.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/broadcom/genet/bcmgenet.c
net/core/sock.c
Conflicts were overlapping changes in bcmgenet and the
lockdep handling of sockets.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci-ioda.c')
-rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 6901a06da2f9..e36738291c32 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -1775,17 +1775,20 @@ static u64 pnv_pci_ioda_dma_get_required_mask(struct pci_dev *pdev) } static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, - struct pci_bus *bus) + struct pci_bus *bus, + bool add_to_group) { struct pci_dev *dev; list_for_each_entry(dev, &bus->devices, bus_list) { set_iommu_table_base(&dev->dev, pe->table_group.tables[0]); set_dma_offset(&dev->dev, pe->tce_bypass_base); - iommu_add_device(&dev->dev); + if (add_to_group) + iommu_add_device(&dev->dev); if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate) - pnv_ioda_setup_bus_dma(pe, dev->subordinate); + pnv_ioda_setup_bus_dma(pe, dev->subordinate, + add_to_group); } } @@ -2191,7 +2194,7 @@ found: set_iommu_table_base(&pe->pdev->dev, tbl); iommu_add_device(&pe->pdev->dev); } else if (pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL)) - pnv_ioda_setup_bus_dma(pe, pe->pbus); + pnv_ioda_setup_bus_dma(pe, pe->pbus, true); return; fail: @@ -2426,6 +2429,8 @@ static void pnv_ioda2_take_ownership(struct iommu_table_group *table_group) pnv_pci_ioda2_set_bypass(pe, false); pnv_pci_ioda2_unset_window(&pe->table_group, 0); + if (pe->pbus) + pnv_ioda_setup_bus_dma(pe, pe->pbus, false); pnv_ioda2_table_free(tbl); } @@ -2435,6 +2440,8 @@ static void pnv_ioda2_release_ownership(struct iommu_table_group *table_group) table_group); pnv_pci_ioda2_setup_default_config(pe); + if (pe->pbus) + pnv_ioda_setup_bus_dma(pe, pe->pbus, false); } static struct iommu_table_group_ops pnv_pci_ioda2_ops = { @@ -2624,6 +2631,9 @@ static long pnv_pci_ioda2_table_alloc_pages(int nid, __u64 bus_offset, level_shift = entries_shift + 3; level_shift = max_t(unsigned, level_shift, PAGE_SHIFT); + if ((level_shift - 3) * levels + page_shift >= 60) + return -EINVAL; + /* Allocate TCE table */ addr = pnv_pci_ioda2_table_do_alloc_pages(nid, level_shift, levels, tce_table_size, &offset, &total_allocated); @@ -2728,7 +2738,7 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb, if (pe->flags & PNV_IODA_PE_DEV) iommu_add_device(&pe->pdev->dev); else if (pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL)) - pnv_ioda_setup_bus_dma(pe, pe->pbus); + pnv_ioda_setup_bus_dma(pe, pe->pbus, true); } #ifdef CONFIG_PCI_MSI |