powerpc: Make radeon 32-bit MSI quirk work on powernv

[mirror_ubuntu-zesty-kernel.git] / arch / powerpc / platforms / powernv / pci.c

diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 55dfca844ddf0f8f38cbb5cb1c6863b71e217110..277343cc6a3d7f87966408f088a33b61f502ecda 100644 (file)
--- 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;
 }
@@ -367,7 +371,7 @@ static void pnv_tce_free(struct iommu_table *tbl, long index, long npages)
        while (npages--)
                *(tcep++) = 0;
 
-       if (tbl->it_type & TCE_PCI_SWINV_CREATE)
+       if (tbl->it_type & TCE_PCI_SWINV_FREE)
                pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1);
 }
 
@@ -450,6 +454,18 @@ static void pnv_pci_dma_dev_setup(struct pci_dev *pdev)
                pnv_pci_dma_fallback_setup(hose, pdev);
 }
 
+void pnv_pci_shutdown(void)
+{
+       struct pci_controller *hose;
+
+       list_for_each_entry(hose, &hose_list, list_node) {
+               struct pnv_phb *phb = hose->private_data;
+
+               if (phb && phb->shutdown)
+                       phb->shutdown(phb);
+       }
+}
+
 /* Fixup wrong class code in p7ioc and p8 root complex */
 static void pnv_p7ioc_rc_quirk(struct pci_dev *dev)
 {