15 files changed, 166 insertions, 196 deletions

diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 9c17591..2ff7c32 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -359,140 +359,17 @@ void pcibios_fixup_bus(struct pci_bus *pbus)
 	pbus->resource[1] = &pbm->mem_space;
 }
 
-int pci_claim_resource(struct pci_dev *pdev, int resource)
+struct resource *pcibios_select_root(struct pci_dev *pdev, struct resource *r)
 {
 	struct pci_pbm_info *pbm = pdev->bus->sysdata;
-	struct resource *res = &pdev->resource[resource];
-	struct resource *root;
-
-	if (!pbm)
-		return -EINVAL;
+	struct resource *root = NULL;
 
-	if (res->flags & IORESOURCE_IO)
+	if (r->flags & IORESOURCE_IO)
 		root = &pbm->io_space;
-	else
+	if (r->flags & IORESOURCE_MEM)
 		root = &pbm->mem_space;
 
-	pbm->parent->resource_adjust(pdev, res, root);
-
-	return request_resource(root, res);
-}
-
-/*
- * Given the PCI bus a device resides on, try to
- * find an acceptable resource allocation for a
- * specific device resource..
- */
-static int pci_assign_bus_resource(const struct pci_bus *bus,
-	struct pci_dev *dev,
-	struct resource *res,
-	unsigned long size,
-	unsigned long min,
-	int resno)
-{
-	unsigned int type_mask;
-	int i;
-
-	type_mask = IORESOURCE_IO | IORESOURCE_MEM;
-	for (i = 0 ; i < 4; i++) {
-		struct resource *r = bus->resource[i];
-		if (!r)
-			continue;
-
-		/* type_mask must match */
-		if ((res->flags ^ r->flags) & type_mask)
-			continue;
-
-		/* Ok, try it out.. */
-		if (allocate_resource(r, res, size, min, -1, size, NULL, NULL) < 0)
-			continue;
-
-		/* PCI config space updated by caller.  */
-		return 0;
-	}
-	return -EBUSY;
-}
-
-void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno)
-{
-	/* Not implemented for sparc64... */
-	BUG();
-}
-
-int pci_assign_resource(struct pci_dev *pdev, int resource)
-{
-	struct pcidev_cookie *pcp = pdev->sysdata;
-	struct pci_pbm_info *pbm = pcp->pbm;
-	struct resource *res = &pdev->resource[resource];
-	unsigned long min, size;
-	int err;
-
-	if (res->flags & IORESOURCE_IO)
-		min = pbm->io_space.start + 0x400UL;
-	else
-		min = pbm->mem_space.start;
-
-	size = res->end - res->start + 1;
-
-	err = pci_assign_bus_resource(pdev->bus, pdev, res, size, min, resource);
-
-	if (err < 0) {
-		printk("PCI: Failed to allocate resource %d for %s\n",
-		       resource, pci_name(pdev));
-	} else {
-		/* Update PCI config space. */
-		pbm->parent->base_address_update(pdev, resource);
-	}
-
-	return err;
-}
-
-/* Sort resources by alignment */
-void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)
-{
-	int i;
-
-	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-		struct resource *r;
-		struct resource_list *list, *tmp;
-		unsigned long r_align;
-
-		r = &dev->resource[i];
-		r_align = r->end - r->start;
-		
-		if (!(r->flags) || r->parent)
-			continue;
-		if (!r_align) {
-			printk(KERN_WARNING "PCI: Ignore bogus resource %d "
-					    "[%lx:%lx] of %s\n",
-					    i, r->start, r->end, pci_name(dev));
-			continue;
-		}
-		r_align = (i < PCI_BRIDGE_RESOURCES) ? r_align + 1 : r->start;
-		for (list = head; ; list = list->next) {
-			unsigned long align = 0;
-			struct resource_list *ln = list->next;
-			int idx;
-
-			if (ln) {
-				idx = ln->res - &ln->dev->resource[0];
-				align = (idx < PCI_BRIDGE_RESOURCES) ?
-					ln->res->end - ln->res->start + 1 :
-					ln->res->start;
-			}
-			if (r_align > align) {
-				tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
-				if (!tmp)
-					panic("pdev_sort_resources(): "
-					      "kmalloc() failed!\n");
-				tmp->next = ln;
-				tmp->res = r;
-				tmp->dev = dev;
-				list->next = tmp;
-				break;
-			}
-		}
-	}
+	return root;
 }
 
 void pcibios_update_irq(struct pci_dev *pdev, int irq)
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index 91ab466..6ed1ef2 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -307,7 +307,7 @@ static unsigned char psycho_pil_table[] = {
 /*0x32*/15,		/* Power Management		*/
 };
 
-static int __init psycho_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
+static int psycho_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
 {
 	int ret;
 
@@ -344,9 +344,9 @@ static int __init psycho_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
 	return ret;
 }
 
-static unsigned int __init psycho_irq_build(struct pci_pbm_info *pbm,
-					    struct pci_dev *pdev,
-					    unsigned int ino)
+static unsigned int psycho_irq_build(struct pci_pbm_info *pbm,
+				     struct pci_dev *pdev,
+				     unsigned int ino)
 {
 	struct ino_bucket *bucket;
 	unsigned long imap, iclr;
@@ -1024,7 +1024,7 @@ static irqreturn_t psycho_pcierr_intr(int irq, void *dev_id, struct pt_regs *reg
 #define PSYCHO_CE_INO		0x2f
 #define PSYCHO_PCIERR_A_INO	0x30
 #define PSYCHO_PCIERR_B_INO	0x31
-static void __init psycho_register_error_handlers(struct pci_controller_info *p)
+static void psycho_register_error_handlers(struct pci_controller_info *p)
 {
 	struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */
 	unsigned long base = p->pbm_A.controller_regs;
@@ -1091,15 +1091,15 @@ static void __init psycho_register_error_handlers(struct pci_controller_info *p)
 }
 
 /* PSYCHO boot time probing and initialization. */
-static void __init psycho_resource_adjust(struct pci_dev *pdev,
-					  struct resource *res,
-					  struct resource *root)
+static void psycho_resource_adjust(struct pci_dev *pdev,
+				   struct resource *res,
+				   struct resource *root)
 {
 	res->start += root->start;
 	res->end += root->start;
 }
 
-static void __init psycho_base_address_update(struct pci_dev *pdev, int resource)
+static void psycho_base_address_update(struct pci_dev *pdev, int resource)
 {
 	struct pcidev_cookie *pcp = pdev->sysdata;
 	struct pci_pbm_info *pbm = pcp->pbm;
@@ -1144,7 +1144,7 @@ static void __init psycho_base_address_update(struct pci_dev *pdev, int resource
 		pci_write_config_dword(pdev, where + 4, 0);
 }
 
-static void __init pbm_config_busmastering(struct pci_pbm_info *pbm)
+static void pbm_config_busmastering(struct pci_pbm_info *pbm)
 {
 	u8 *addr;
 
@@ -1161,8 +1161,8 @@ static void __init pbm_config_busmastering(struct pci_pbm_info *pbm)
 	pci_config_write8(addr, 64);
 }
 
-static void __init pbm_scan_bus(struct pci_controller_info *p,
-				struct pci_pbm_info *pbm)
+static void pbm_scan_bus(struct pci_controller_info *p,
+			 struct pci_pbm_info *pbm)
 {
 	struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL);
 
@@ -1189,7 +1189,7 @@ static void __init pbm_scan_bus(struct pci_controller_info *p,
 	pci_setup_busmastering(pbm, pbm->pci_bus);
 }
 
-static void __init psycho_scan_bus(struct pci_controller_info *p)
+static void psycho_scan_bus(struct pci_controller_info *p)
 {
 	pbm_config_busmastering(&p->pbm_B);
 	p->pbm_B.is_66mhz_capable = 0;
@@ -1204,7 +1204,7 @@ static void __init psycho_scan_bus(struct pci_controller_info *p)
 	psycho_register_error_handlers(p);
 }
 
-static void __init psycho_iommu_init(struct pci_controller_info *p)
+static void psycho_iommu_init(struct pci_controller_info *p)
 {
 	struct pci_iommu *iommu = p->pbm_A.iommu;
 	unsigned long tsbbase, i;
@@ -1327,8 +1327,8 @@ static void psycho_controller_hwinit(struct pci_controller_info *p)
 	psycho_write(p->pbm_A.controller_regs + PSYCHO_PCIB_DIAG, tmp);
 }
 
-static void __init pbm_register_toplevel_resources(struct pci_controller_info *p,
-						   struct pci_pbm_info *pbm)
+static void pbm_register_toplevel_resources(struct pci_controller_info *p,
+					    struct pci_pbm_info *pbm)
 {
 	char *name = pbm->name;
 
@@ -1481,7 +1481,7 @@ static void psycho_pbm_init(struct pci_controller_info *p,
 
 #define PSYCHO_CONFIGSPACE	0x001000000UL
 
-void __init psycho_init(int node, char *model_name)
+void psycho_init(int node, char *model_name)
 {
 	struct linux_prom64_registers pr_regs[3];
 	struct pci_controller_info *p;
diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c
index 52bf343..0ee6bd5 100644
--- a/arch/sparc64/kernel/pci_sabre.c
+++ b/arch/sparc64/kernel/pci_sabre.c
@@ -554,7 +554,7 @@ static unsigned char sabre_pil_table[] = {
 /*0x32*/15,		/* Power Management		*/
 };
 
-static int __init sabre_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
+static int sabre_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
 {
 	int ret;
 
@@ -612,9 +612,9 @@ static void sabre_wsync_handler(struct ino_bucket *bucket, void *_arg1, void *_a
 	sabre_read(sync_reg);
 }
 
-static unsigned int __init sabre_irq_build(struct pci_pbm_info *pbm,
-					   struct pci_dev *pdev,
-					   unsigned int ino)
+static unsigned int sabre_irq_build(struct pci_pbm_info *pbm,
+				    struct pci_dev *pdev,
+				    unsigned int ino)
 {
 	struct ino_bucket *bucket;
 	unsigned long imap, iclr;
@@ -1009,7 +1009,7 @@ static irqreturn_t sabre_pcierr_intr(int irq, void *dev_id, struct pt_regs *regs
 #define SABRE_UE_INO		0x2e
 #define SABRE_CE_INO		0x2f
 #define SABRE_PCIERR_INO	0x30
-static void __init sabre_register_error_handlers(struct pci_controller_info *p)
+static void sabre_register_error_handlers(struct pci_controller_info *p)
 {
 	struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */
 	unsigned long base = pbm->controller_regs;
@@ -1056,9 +1056,9 @@ static void __init sabre_register_error_handlers(struct pci_controller_info *p)
 	sabre_write(base + SABRE_PCICTRL, tmp);
 }
 
-static void __init sabre_resource_adjust(struct pci_dev *pdev,
-					 struct resource *res,
-					 struct resource *root)
+static void sabre_resource_adjust(struct pci_dev *pdev,
+				  struct resource *res,
+				  struct resource *root)
 {
 	struct pci_pbm_info *pbm = pdev->bus->sysdata;
 	unsigned long base;
@@ -1072,7 +1072,7 @@ static void __init sabre_resource_adjust(struct pci_dev *pdev,
 	res->end += base;
 }
 
-static void __init sabre_base_address_update(struct pci_dev *pdev, int resource)
+static void sabre_base_address_update(struct pci_dev *pdev, int resource)
 {
 	struct pcidev_cookie *pcp = pdev->sysdata;
 	struct pci_pbm_info *pbm = pcp->pbm;
@@ -1118,7 +1118,7 @@ static void __init sabre_base_address_update(struct pci_dev *pdev, int resource)
 		pci_write_config_dword(pdev, where + 4, 0);
 }
 
-static void __init apb_init(struct pci_controller_info *p, struct pci_bus *sabre_bus)
+static void apb_init(struct pci_controller_info *p, struct pci_bus *sabre_bus)
 {
 	struct pci_dev *pdev;
 
@@ -1181,7 +1181,7 @@ static struct pcidev_cookie *alloc_bridge_cookie(struct pci_pbm_info *pbm)
 	return cookie;
 }
 
-static void __init sabre_scan_bus(struct pci_controller_info *p)
+static void sabre_scan_bus(struct pci_controller_info *p)
 {
 	static int once;
 	struct pci_bus *sabre_bus, *pbus;
@@ -1262,9 +1262,9 @@ static void __init sabre_scan_bus(struct pci_controller_info *p)
 	sabre_register_error_handlers(p);
 }
 
-static void __init sabre_iommu_init(struct pci_controller_info *p,
-				    int tsbsize, unsigned long dvma_offset,
-				    u32 dma_mask)
+static void sabre_iommu_init(struct pci_controller_info *p,
+			     int tsbsize, unsigned long dvma_offset,
+			     u32 dma_mask)
 {
 	struct pci_iommu *iommu = p->pbm_A.iommu;
 	unsigned long tsbbase, i, order;
@@ -1345,8 +1345,8 @@ static void __init sabre_iommu_init(struct pci_controller_info *p,
 	}
 }
 
-static void __init pbm_register_toplevel_resources(struct pci_controller_info *p,
-						   struct pci_pbm_info *pbm)
+static void pbm_register_toplevel_resources(struct pci_controller_info *p,
+					    struct pci_pbm_info *pbm)
 {
 	char *name = pbm->name;
 	unsigned long ibase = p->pbm_A.controller_regs + SABRE_IOSPACE;
@@ -1415,7 +1415,7 @@ static void __init pbm_register_toplevel_resources(struct pci_controller_info *p
 					    &pbm->mem_space);
 }
 
-static void __init sabre_pbm_init(struct pci_controller_info *p, int sabre_node, u32 dma_begin)
+static void sabre_pbm_init(struct pci_controller_info *p, int sabre_node, u32 dma_begin)
 {
 	struct pci_pbm_info *pbm;
 	char namebuf[128];
@@ -1552,7 +1552,7 @@ static void __init sabre_pbm_init(struct pci_controller_info *p, int sabre_node,
 	}
 }
 
-void __init sabre_init(int pnode, char *model_name)
+void sabre_init(int pnode, char *model_name)
 {
 	struct linux_prom64_registers pr_regs[2];
 	struct pci_controller_info *p;
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index 6a182bb..331382e 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -285,7 +285,7 @@ static unsigned char schizo_pil_table[] = {
 /*0x3f*/0,		/* Reserved for NewLink		*/
 };
 
-static int __init schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
+static int schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
 {
 	int ret;
 
@@ -1221,7 +1221,7 @@ static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id, struct pt_regs *
  * PCI bus units of the same Tomatillo.  I still have not really
  * figured this out...
  */
-static void __init tomatillo_register_error_handlers(struct pci_controller_info *p)
+static void tomatillo_register_error_handlers(struct pci_controller_info *p)
 {
 	struct pci_pbm_info *pbm;
 	unsigned int irq;
@@ -1359,7 +1359,7 @@ static void __init tomatillo_register_error_handlers(struct pci_controller_info
 		     (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP)));
 }
 
-static void __init schizo_register_error_handlers(struct pci_controller_info *p)
+static void schizo_register_error_handlers(struct pci_controller_info *p)
 {
 	struct pci_pbm_info *pbm;
 	unsigned int irq;
@@ -1505,7 +1505,7 @@ static void __init schizo_register_error_handlers(struct pci_controller_info *p)
 		     (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP)));
 }
 
-static void __init pbm_config_busmastering(struct pci_pbm_info *pbm)
+static void pbm_config_busmastering(struct pci_pbm_info *pbm)
 {
 	u8 *addr;
 
@@ -1522,8 +1522,8 @@ static void __init pbm_config_busmastering(struct pci_pbm_info *pbm)
 	pci_config_write8(addr, 64);
 }
 
-static void __init pbm_scan_bus(struct pci_controller_info *p,
-				struct pci_pbm_info *pbm)
+static void pbm_scan_bus(struct pci_controller_info *p,
+			 struct pci_pbm_info *pbm)
 {
 	struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL);
 
@@ -1550,8 +1550,8 @@ static void __init pbm_scan_bus(struct pci_controller_info *p,
 	pci_setup_busmastering(pbm, pbm->pci_bus);
 }
 
-static void __init __schizo_scan_bus(struct pci_controller_info *p,
-				     int chip_type)
+static void __schizo_scan_bus(struct pci_controller_info *p,
+			      int chip_type)
 {
 	if (!p->pbm_B.prom_node || !p->pbm_A.prom_node) {
 		printk("PCI: Only one PCI bus module of controller found.\n");
@@ -1577,17 +1577,17 @@ static void __init __schizo_scan_bus(struct pci_controller_info *p,
 		schizo_register_error_handlers(p);
 }
 
-static void __init schizo_scan_bus(struct pci_controller_info *p)
+static void schizo_scan_bus(struct pci_controller_info *p)
 {
 	__schizo_scan_bus(p, PBM_CHIP_TYPE_SCHIZO);
 }
 
-static void __init tomatillo_scan_bus(struct pci_controller_info *p)
+static void tomatillo_scan_bus(struct pci_controller_info *p)
 {
 	__schizo_scan_bus(p, PBM_CHIP_TYPE_TOMATILLO);
 }
 
-static void __init schizo_base_address_update(struct pci_dev *pdev, int resource)
+static void schizo_base_address_update(struct pci_dev *pdev, int resource)
 {
 	struct pcidev_cookie *pcp = pdev->sysdata;
 	struct pci_pbm_info *pbm = pcp->pbm;
@@ -1632,9 +1632,9 @@ static void __init schizo_base_address_update(struct pci_dev *pdev, int resource
 		pci_write_config_dword(pdev, where + 4, 0);
 }
 
-static void __init schizo_resource_adjust(struct pci_dev *pdev,
-					  struct resource *res,
-					  struct resource *root)
+static void schizo_resource_adjust(struct pci_dev *pdev,
+				   struct resource *res,
+				   struct resource *root)
 {
 	res->start += root->start;
 	res->end += root->start;
@@ -1702,8 +1702,8 @@ static void schizo_determine_mem_io_space(struct pci_pbm_info *pbm)
 	       pbm->mem_space.start);
 }
 
-static void __init pbm_register_toplevel_resources(struct pci_controller_info *p,
-						   struct pci_pbm_info *pbm)
+static void pbm_register_toplevel_resources(struct pci_controller_info *p,
+					    struct pci_pbm_info *pbm)
 {
 	pbm->io_space.name = pbm->mem_space.name = pbm->name;
 
@@ -1932,7 +1932,7 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
 #define TOMATILLO_PCI_IOC_TDIAG		(0x2250UL)
 #define TOMATILLO_PCI_IOC_DDIAG		(0x2290UL)
 
-static void __init schizo_pbm_hw_init(struct pci_pbm_info *pbm)
+static void schizo_pbm_hw_init(struct pci_pbm_info *pbm)
 {
 	u64 tmp;
 
@@ -1986,9 +1986,9 @@ static void __init schizo_pbm_hw_init(struct pci_pbm_info *pbm)
 	}
 }
 
-static void __init schizo_pbm_init(struct pci_controller_info *p,
-				   int prom_node, u32 portid,
-				   int chip_type)
+static void schizo_pbm_init(struct pci_controller_info *p,
+			    int prom_node, u32 portid,
+			    int chip_type)
 {
 	struct linux_prom64_registers pr_regs[4];
 	unsigned int busrange[2];
@@ -2145,7 +2145,7 @@ static inline int portid_compare(u32 x, u32 y, int chip_type)
 	return (x == y);
 }
 
-static void __init __schizo_init(int node, char *model_name, int chip_type)
+static void __schizo_init(int node, char *model_name, int chip_type)
 {
 	struct pci_controller_info *p;
 	struct pci_iommu *iommu;
@@ -2213,17 +2213,17 @@ static void __init __schizo_init(int node, char *model_name, int chip_type)
 	schizo_pbm_init(p, node, portid, chip_type);
 }
 
-void __init schizo_init(int node, char *model_name)
+void schizo_init(int node, char *model_name)
 {
 	__schizo_init(node, model_name, PBM_CHIP_TYPE_SCHIZO);
 }
 
-void __init schizo_plus_init(int node, char *model_name)
+void schizo_plus_init(int node, char *model_name)
 {
 	__schizo_init(node, model_name, PBM_CHIP_TYPE_SCHIZO_PLUS);
 }
 
-void __init tomatillo_init(int node, char *model_name)
+void tomatillo_init(int node, char *model_name)
 {
 	__schizo_init(node, model_name, PBM_CHIP_TYPE_TOMATILLO);
 }
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 87cbf2d..716df015 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -3,13 +3,9 @@
 #
 
 obj-y		+= access.o bus.o probe.o remove.o pci.o quirks.o \
-			pci-driver.o search.o pci-sysfs.o rom.o
+			pci-driver.o search.o pci-sysfs.o rom.o setup-res.o
 obj-$(CONFIG_PROC_FS) += proc.o
 
-ifndef CONFIG_SPARC64
-obj-y += setup-res.o
-endif
-
 obj-$(CONFIG_HOTPLUG) += hotplug.o
 
 # Build the PCI Hotplug drivers if we were asked to
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 140354a..4f0c1bd 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -245,12 +245,19 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region, unsi
 {
 	region &= ~(size-1);
 	if (region) {
+		struct pci_bus_region bus_region;
 		struct resource *res = dev->resource + nr;
 
 		res->name = pci_name(dev);
 		res->start = region;
 		res->end = region + size - 1;
 		res->flags = IORESOURCE_IO;
+
+		/* Convert from PCI bus to resource space.  */
+		bus_region.start = res->start;
+		bus_region.end = res->end;
+		pcibios_bus_to_resource(dev, res, &bus_region);
+
 		pci_claim_resource(dev, nr);
 	}
 }	
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 362f933..50d6685 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -97,10 +97,7 @@ pci_claim_resource(struct pci_dev *dev, int resource)
 	char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge";
 	int err;
 
-	if (res->flags & IORESOURCE_IO)
-		root = &ioport_resource;
-	if (res->flags & IORESOURCE_MEM)
-		root = &iomem_resource;
+	root = pcibios_select_root(dev, res);
 
 	err = -EINVAL;
 	if (root != NULL)
diff --git a/include/asm-alpha/pci.h b/include/asm-alpha/pci.h
index f681e67..4e115f3 100644
--- a/include/asm-alpha/pci.h
+++ b/include/asm-alpha/pci.h
@@ -254,6 +254,19 @@ extern void pcibios_resource_to_bus(struct pci_dev *, struct pci_bus_region *,
 extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 				    struct pci_bus_region *region);
 
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
 #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
 
 static inline int pci_proc_domain(struct pci_bus *bus)
diff --git a/include/asm-arm/pci.h b/include/asm-arm/pci.h
index 38ea589..ead3ced 100644
--- a/include/asm-arm/pci.h
+++ b/include/asm-arm/pci.h
@@ -64,6 +64,19 @@ extern void
 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			struct pci_bus_region *region);
 
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
 {
 }
diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h
index ee1d8b5..c36a77d 100644
--- a/include/asm-generic/pci.h
+++ b/include/asm-generic/pci.h
@@ -30,6 +30,19 @@ pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 	res->end = region->end;
 }
 
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
 #define pcibios_scan_all_fns(a, b)	0
 
 #ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
diff --git a/include/asm-ia64/pci.h b/include/asm-ia64/pci.h
index dba9f22..ef616fd 100644
--- a/include/asm-ia64/pci.h
+++ b/include/asm-ia64/pci.h
@@ -156,6 +156,19 @@ extern void pcibios_resource_to_bus(struct pci_dev *dev,
 extern void pcibios_bus_to_resource(struct pci_dev *dev,
 		struct resource *res, struct pci_bus_region *region);
 
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
 #define pcibios_scan_all_fns(a, b)	0
 
 #endif /* _ASM_IA64_PCI_H */
diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h
index 98d79a3..d0b761f 100644
--- a/include/asm-parisc/pci.h
+++ b/include/asm-parisc/pci.h
@@ -257,6 +257,19 @@ extern void
 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			struct pci_bus_region *region);
 
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
 {
 }
diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h
index a811e44..9dd06cd 100644
--- a/include/asm-ppc/pci.h
+++ b/include/asm-ppc/pci.h
@@ -109,6 +109,19 @@ extern void
 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			struct pci_bus_region *region);
 
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
 extern void pcibios_add_platform_entries(struct pci_dev *dev);
 
 struct file;
diff --git a/include/asm-ppc64/pci.h b/include/asm-ppc64/pci.h
index 4d05745..a88bbfc 100644
--- a/include/asm-ppc64/pci.h
+++ b/include/asm-ppc64/pci.h
@@ -138,6 +138,19 @@ extern void
 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			struct pci_bus_region *region);
 
+static inline struct resource *
+pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+{
+	struct resource *root = NULL;
+
+	if (res->flags & IORESOURCE_IO)
+		root = &ioport_resource;
+	if (res->flags & IORESOURCE_MEM)
+		root = &iomem_resource;
+
+	return root;
+}
+
 extern int
 unmap_bus_range(struct pci_bus *bus);
 
diff --git a/include/asm-sparc64/pci.h b/include/asm-sparc64/pci.h
index a4ab0ec..89bd71b 100644
--- a/include/asm-sparc64/pci.h
+++ b/include/asm-sparc64/pci.h
@@ -269,6 +269,8 @@ extern void
 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
 			struct pci_bus_region *region);
 
+extern struct resource *pcibios_select_root(struct pci_dev *, struct resource *);
+
 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
 {
 }