diff -u -r 50_iosapic_segment/arch/ia64/kernel/acpi.c 60_pci_tra/arch/ia64/kernel/acpi.c
--- 50_iosapic_segment/arch/ia64/kernel/acpi.c	Fri Jul 19 17:24:49 2002
+++ 60_pci_tra/arch/ia64/kernel/acpi.c	Fri Jul 19 17:24:50 2002
@@ -166,6 +166,73 @@
 	kfree(buf->pointer);
 }
 
+static void
+acpi_get_crs_addr (acpi_buffer *buf, int type, u64 *base, u64 *size, u64 *tra)
+{
+	int offset = 0;
+	acpi_resource_address16 *addr16;
+	acpi_resource_address32 *addr32;
+	acpi_resource_address64 *addr64;
+
+	for (;;) {
+		acpi_resource *res = acpi_get_crs_next(buf, &offset);
+		if (!res)
+			return;
+		switch (res->id) {
+			case ACPI_RSTYPE_ADDRESS16:
+				addr16 = (acpi_resource_address16 *) &res->data;
+
+				if (type == addr16->resource_type) {
+					*base = addr16->min_address_range;
+					*size = addr16->address_length;
+					*tra = addr16->address_translation_offset;
+					return;
+				}
+				break;
+			case ACPI_RSTYPE_ADDRESS32:
+				addr32 = (acpi_resource_address32 *) &res->data;
+				if (type == addr32->resource_type) {
+					*base = addr32->min_address_range;
+					*size = addr32->address_length;
+					*tra = addr32->address_translation_offset;
+					return;
+				}
+				break;
+			case ACPI_RSTYPE_ADDRESS64:
+				addr64 = (acpi_resource_address64 *) &res->data;
+				if (type == addr64->resource_type) {
+					*base = addr64->min_address_range;
+					*size = addr64->address_length;
+					*tra = addr64->address_translation_offset;
+					return;
+				}
+				break;
+		}
+	}
+}
+
+acpi_status
+acpi_get_addr_space(acpi_handle obj, u8 type, u64 *base, u64 *length, u64 *tra)
+{
+	acpi_status status;
+	acpi_buffer buf;
+
+	*base = 0;
+	*length = 0;
+	*tra = 0;
+
+	status = acpi_get_crs(obj, &buf);
+	if (ACPI_FAILURE(status)) {
+		printk(KERN_ERR PREFIX "Unable to get _CRS data on object\n");
+		return status;
+	}
+
+	acpi_get_crs_addr(&buf, type, base, length, tra);
+
+	acpi_dispose_crs(&buf);
+
+	return AE_OK;
+}
 #endif /* CONFIG_ACPI */
 
 #ifdef CONFIG_ACPI_BOOT
diff -u -r 50_iosapic_segment/arch/ia64/kernel/pci.c 60_pci_tra/arch/ia64/kernel/pci.c
--- 50_iosapic_segment/arch/ia64/kernel/pci.c	Fri Jul 19 17:24:49 2002
+++ 60_pci_tra/arch/ia64/kernel/pci.c	Fri Jul 19 17:24:50 2002
@@ -13,6 +13,7 @@
 #include <linux/slab.h>
 #include <linux/smp_lock.h>
 #include <linux/spinlock.h>
+#include <linux/acpi.h>
 
 #include <asm/machvec.h>
 #include <asm/page.h>
@@ -214,6 +215,7 @@
 pcibios_scan_root(void *handle, int seg, int bus)
 {
 	struct pci_controller *controller;
+	u64 base, size, offset;
 
 	printk("PCI: Probing PCI hardware on bus (%02x:%02x)\n", seg, bus);
 
@@ -222,6 +224,10 @@
 		return NULL;
 
 	controller->acpi_handle = handle;
+
+	acpi_get_addr_space(handle, ACPI_MEMORY_RANGE, &base, &size, &offset);
+	controller->mem_offset = offset;
+
 	return scan_root_bus(bus, pci_root_ops, controller);
 }
 
@@ -267,6 +273,27 @@
 
 subsys_initcall(pcibios_init);
 
+static void __init
+pcibios_fixup_resource(struct resource *res, u64 offset)
+{
+	res->start += offset;
+	res->end += offset;
+}
+
+void __init
+pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus)
+{
+	int i;
+
+	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+		if (!dev->resource[i].start)
+			continue;
+		if (dev->resource[i].flags & IORESOURCE_MEM)
+			pcibios_fixup_resource(&dev->resource[i],
+				PCI_CONTROLLER(dev)->mem_offset);
+	}
+}
+
 /*
  *  Called after each bus is probed, but before its children
  *  are examined.
@@ -274,7 +301,10 @@
 void __init
 pcibios_fixup_bus (struct pci_bus *b)
 {
-	return;
+	struct list_head *ln;
+
+	for (ln = b->devices.next; ln != &b->devices; ln = ln->next)
+		pcibios_fixup_device_resources(pci_dev_b(ln), b);
 }
 
 void __init
diff -u -r 50_iosapic_segment/include/asm-ia64/pci.h 60_pci_tra/include/asm-ia64/pci.h
--- 50_iosapic_segment/include/asm-ia64/pci.h	Fri Jul 19 17:24:49 2002
+++ 60_pci_tra/include/asm-ia64/pci.h	Fri Jul 19 17:24:50 2002
@@ -99,6 +99,8 @@
 struct pci_controller {
 	void *acpi_handle;
 	int segment;
+
+	u64 mem_offset;
 };
 
 #define PCI_CONTROLLER(dev) ((struct pci_controller *) dev->sysdata)
diff -u -r 50_iosapic_segment/include/linux/acpi.h 60_pci_tra/include/linux/acpi.h
--- 50_iosapic_segment/include/linux/acpi.h	Fri Jul 19 17:24:49 2002
+++ 60_pci_tra/include/linux/acpi.h	Fri Jul 19 17:30:06 2002
@@ -390,6 +390,7 @@
 
 int acpi_init(void);
 int acpi_irq_to_vector(u32 irq);
+acpi_status acpi_get_addr_space(acpi_handle, u8 type, u64 *base, u64 *length, u64 *tra);
 
 #endif /*CONFIG_ACPI_INTERPRETER*/