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Diffstat (limited to 'arch/s390/pci/pci.c')
-rw-r--r--arch/s390/pci/pci.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 0ebb7c405a25..86ca7f88fb22 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -528,7 +528,10 @@ static int zpci_setup_bus_resources(struct zpci_dev *zdev,
 		if (zdev->bars[i].val & 4)
 			flags |= IORESOURCE_MEM_64;
 
-		addr = ZPCI_ADDR(entry);
+		if (static_branch_likely(&have_mio))
+			addr = (unsigned long) zdev->bars[i].mio_wb;
+		else
+			addr = ZPCI_ADDR(entry);
 		size = 1UL << zdev->bars[i].size;
 
 		res = __alloc_res(zdev, addr, size, flags);