summaryrefslogtreecommitdiff
path: root/arch/powerpc
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2019-02-23 11:13:50 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-02-23 11:13:50 -0800
commite60b5f79bd7529e76b13cf1e85823abbd0e33634 (patch)
tree67d54525fe5b0618e64749a86a8438cc1ea31d8a /arch/powerpc
parent6089a91fc02e0a4f8962f0df1be236c44248d7ea (diff)
parent8f5b27347e88b171c755562f0090ce40e514fc00 (diff)
Merge tag 'powerpc-5.0-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman: "One fix for an oops when using SRIOV, introduced by the recent changes to support compound IOMMU groups. Thanks to Alexey Kardashevskiy" * tag 'powerpc-5.0-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/powernv/sriov: Register IOMMU groups for VFs
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/powernv/pci-ioda.c2
-rw-r--r--arch/powerpc/platforms/powernv/pci.c2
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 7db3119f8a5b..145373f0e5dc 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1593,6 +1593,8 @@ static void pnv_ioda_setup_vf_PE(struct pci_dev *pdev, u16 num_vfs)
pnv_pci_ioda2_setup_dma_pe(phb, pe);
#ifdef CONFIG_IOMMU_API
+ iommu_register_group(&pe->table_group,
+ pe->phb->hose->global_number, pe->pe_number);
pnv_ioda_setup_bus_iommu_group(pe, &pe->table_group, NULL);
#endif
}
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 45fb70b4bfa7..ef9448a907c6 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -1147,6 +1147,8 @@ static int pnv_tce_iommu_bus_notifier(struct notifier_block *nb,
return 0;
pe = &phb->ioda.pe_array[pdn->pe_number];
+ if (!pe->table_group.group)
+ return 0;
iommu_add_device(&pe->table_group, dev);
return 0;
case BUS_NOTIFY_DEL_DEVICE: