3 files changed, 27 insertions, 6 deletions

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 6a3c1e728900..1ae9c3f50ffa 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -649,6 +649,9 @@ static void pci_read_irq(struct pci_dev *dev)
  * Returns 0 on success and -1 if unknown type of device (not normal, bridge
  * or CardBus).
  */
+
+#define LEGACY_IO_RESOURCE      (IORESOURCE_IO | IORESOURCE_PCI_FIXED)
+
 static int pci_setup_device(struct pci_dev * dev)
 {
         u32 class;
@@ -692,18 +695,18 @@ static int pci_setup_device(struct pci_dev * dev)
                         if ((progif & 1) == 0) {
                                 dev->resource[0].start = 0x1F0;
                                 dev->resource[0].end = 0x1F7;
-                                dev->resource[0].flags = IORESOURCE_IO;
+                                dev->resource[0].flags = LEGACY_IO_RESOURCE;
                                 dev->resource[1].start = 0x3F6;
                                 dev->resource[1].end = 0x3F6;
-                                dev->resource[1].flags = IORESOURCE_IO;
+                                dev->resource[1].flags = LEGACY_IO_RESOURCE;
                         }
                         if ((progif & 4) == 0) {
                                 dev->resource[2].start = 0x170;
                                 dev->resource[2].end = 0x177;
-                                dev->resource[2].flags = IORESOURCE_IO;
+                                dev->resource[2].flags = LEGACY_IO_RESOURCE;
                                 dev->resource[3].start = 0x376;
                                 dev->resource[3].end = 0x376;
-                                dev->resource[3].flags = IORESOURCE_IO;
+                                dev->resource[3].flags = LEGACY_IO_RESOURCE;
                         }
                 }
                 break;
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index ab78e4bbdd83..cb4ced3560e9 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -33,11 +33,22 @@ pci_update_resource(struct pci_dev *dev, struct resource *res, int resno)
         u32 new, check, mask;
         int reg;
 
-        /* Ignore resources for unimplemented BARs and unused resource slots
-           for 64 bit BARs. */
+        /*
+         * Ignore resources for unimplemented BARs and unused resource slots
+         * for 64 bit BARs.
+         */
         if (!res->flags)
                 return;
 
+        /*
+         * Ignore non-moveable resources.  This might be legacy resources for
+         * which no functional BAR register exists or another important
+         * system resource we should better not move around in system address
+         * space.
+         */
+        if (res->flags & IORESOURCE_PCI_FIXED)
+                return;
+
         pcibios_resource_to_bus(dev, &region, res);
 
         pr_debug("  got res [%llx:%llx] bus [%lx:%lx] flags %lx for "
@@ -212,6 +223,10 @@ pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)
                 resource_size_t r_align;
 
                 r = &dev->resource[i];
+
+                if (r->flags & IORESOURCE_PCI_FIXED)
+                        continue;
+
                 r_align = r->end - r->start;
                 
                 if (!(r->flags) || r->parent)
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index cf8696d4a138..15228d79c5bc 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -91,6 +91,9 @@ struct resource_list {
 #define IORESOURCE_ROM_COPY             (1<<2)  /* ROM is alloc'd copy, resource field overlaid */
 #define IORESOURCE_ROM_BIOS_COPY        (1<<3)  /* ROM is BIOS copy, resource field overlaid */
 
+/* PCI control bits.  Shares IORESOURCE_BITS with above PCI ROM.  */
+#define IORESOURCE_PCI_FIXED            (1<<4)  /* Do not move resource */
+
 /* PC/ISA/whatever - the normal PC address spaces: IO and memory */
 extern struct resource ioport_resource;
 extern struct resource iomem_resource;