diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index 098d3573315c..277343cc6a3d 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -47,6 +47,10 @@ static int pnv_msi_check_device(struct pci_dev* pdev, int nvec, int type) { struct pci_controller *hose = pci_bus_to_host(pdev->bus); struct pnv_phb *phb = hose->private_data; + struct pci_dn *pdn = pci_get_pdn(pdev); + + if (pdn && pdn->force_32bit_msi && !phb->msi32_support) + return -ENODEV; return (phb && phb->msi_bmp.bitmap) ? 0 : -ENODEV; } |