1 files changed, 26 insertions, 20 deletions

diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 20a1192de1a..03a7dc494b4 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -104,7 +104,7 @@ pcibios_fixup_resources(struct pci_dev *dev)
 {
 	struct pci_controller* hose = (struct pci_controller *)dev->sysdata;
 	int i;
-	unsigned long offset;
+	resource_size_t offset, mask;
 
 	if (!hose) {
 		printk(KERN_ERR "No hose for PCI dev %s!\n", pci_name(dev));
@@ -123,15 +123,17 @@ pcibios_fixup_resources(struct pci_dev *dev)
 			continue;
 		}
 		offset = 0;
+		mask = (resource_size_t)-1;
 		if (res->flags & IORESOURCE_MEM) {
 			offset = hose->pci_mem_offset;
 		} else if (res->flags & IORESOURCE_IO) {
 			offset = (unsigned long) hose->io_base_virt
 				- isa_io_base;
+			mask = 0xffffffffu;
 		}
 		if (offset != 0) {
-			res->start += offset;
-			res->end += offset;
+			res->start = (res->start + offset) & mask;
+			res->end = (res->end + offset) & mask;
 			DBG("Fixup res %d (%lx) of dev %s: %llx -> %llx\n",
 			    i, res->flags, pci_name(dev),
 			    (u64)res->start - offset, (u64)res->start);
@@ -147,30 +149,32 @@ DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID,		PCI_ANY_ID,			pcibios_fixup_resources);
 void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
 			struct resource *res)
 {
-	unsigned long offset = 0;
+	resource_size_t offset = 0, mask = (resource_size_t)-1;
 	struct pci_controller *hose = dev->sysdata;
 
-	if (hose && res->flags & IORESOURCE_IO)
+	if (hose && res->flags & IORESOURCE_IO) {
 		offset = (unsigned long)hose->io_base_virt - isa_io_base;
-	else if (hose && res->flags & IORESOURCE_MEM)
+		mask = 0xffffffffu;
+	} else if (hose && res->flags & IORESOURCE_MEM)
 		offset = hose->pci_mem_offset;
-	region->start = res->start - offset;
-	region->end = res->end - offset;
+	region->start = (res->start - offset) & mask;
+	region->end = (res->end - offset) & mask;
 }
 EXPORT_SYMBOL(pcibios_resource_to_bus);
 
 void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			     struct pci_bus_region *region)
 {
-	unsigned long offset = 0;
+	resource_size_t offset = 0, mask = (resource_size_t)-1;
 	struct pci_controller *hose = dev->sysdata;
 
-	if (hose && res->flags & IORESOURCE_IO)
+	if (hose && res->flags & IORESOURCE_IO) {
 		offset = (unsigned long)hose->io_base_virt - isa_io_base;
-	else if (hose && res->flags & IORESOURCE_MEM)
+		mask = 0xffffffffu;
+	} else if (hose && res->flags & IORESOURCE_MEM)
 		offset = hose->pci_mem_offset;
-	res->start = region->start + offset;
-	res->end = region->end + offset;
+	res->start = (region->start + offset) & mask;
+	res->end = (region->end + offset) & mask;
 }
 EXPORT_SYMBOL(pcibios_bus_to_resource);
 
@@ -334,9 +338,9 @@ static int __init
 pci_relocate_bridge_resource(struct pci_bus *bus, int i)
 {
 	struct resource *res, *pr, *conflict;
-	unsigned long try, size;
-	int j;
+	resource_size_t try, size;
 	struct pci_bus *parent = bus->parent;
+	int j;
 
 	if (parent == NULL) {
 		/* shouldn't ever happen */
@@ -438,7 +442,7 @@ update_bridge_resource(struct pci_dev *dev, struct resource *res)
 	u8 io_base_lo, io_limit_lo;
 	u16 mem_base, mem_limit;
 	u16 cmd;
-	unsigned long start, end, off;
+	resource_size_t start, end, off;
 	struct pci_controller *hose = dev->sysdata;
 
 	if (!hose) {
@@ -1157,8 +1161,8 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 			res->end = IO_SPACE_LIMIT;
 			res->flags = IORESOURCE_IO;
 		}
-		res->start += io_offset;
-		res->end += io_offset;
+		res->start = (res->start + io_offset) & 0xffffffffu;
+		res->end = (res->end + io_offset) & 0xffffffffu;
 
 		for (i = 0; i < 3; ++i) {
 			res = &hose->mem_resources[i];
@@ -1183,8 +1187,10 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 			if (!res->flags || bus->self->transparent)
 				continue;
 			if (io_offset && (res->flags & IORESOURCE_IO)) {
-				res->start += io_offset;
-				res->end += io_offset;
+				res->start = (res->start + io_offset) &
+					0xffffffffu;
+				res->end = (res->end + io_offset) &
+					0xffffffffu;
 			} else if (hose->pci_mem_offset
 				   && (res->flags & IORESOURCE_MEM)) {
 				res->start += hose->pci_mem_offset;