Merge branch 'linus' into x86/pci-ioapic-boot-irq-quirks

Conflicts:

	drivers/pci/quirks.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

15 files changed, 292 insertions, 163 deletions

diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile
index c5c8e48..e515e8d 100644
--- a/arch/x86/pci/Makefile
+++ b/arch/x86/pci/Makefile
@@ -1,5 +1,17 @@
-ifeq ($(CONFIG_X86_32),y)
-include ${srctree}/arch/x86/pci/Makefile_32
-else
-include ${srctree}/arch/x86/pci/Makefile_64
-endif
+obj-y				:= i386.o init.o
+
+obj-$(CONFIG_PCI_BIOS)		+= pcbios.o
+obj-$(CONFIG_PCI_MMCONFIG)	+= mmconfig_$(BITS).o direct.o mmconfig-shared.o
+obj-$(CONFIG_PCI_DIRECT)	+= direct.o
+obj-$(CONFIG_PCI_OLPC)		+= olpc.o
+
+pci-y				:= fixup.o
+pci-$(CONFIG_ACPI)		+= acpi.o
+pci-y				+= legacy.o irq.o
+
+pci-$(CONFIG_X86_VISWS)		+= visws.o
+
+pci-$(CONFIG_X86_NUMAQ)		+= numa.o
+
+obj-y				+= $(pci-y) common.o early.o
+obj-y				+= amd_bus.o
diff --git a/arch/x86/pci/Makefile_32 b/arch/x86/pci/Makefile_32
deleted file mode 100644
index a34fbf5..0000000
--- a/arch/x86/pci/Makefile_32
+++ /dev/null
@@ -1,26 +0,0 @@
-obj-y				:= i386.o init.o
-
-obj-$(CONFIG_PCI_BIOS)		+= pcbios.o
-obj-$(CONFIG_PCI_MMCONFIG)	+= mmconfig_32.o direct.o mmconfig-shared.o
-obj-$(CONFIG_PCI_DIRECT)	+= direct.o
-obj-$(CONFIG_PCI_OLPC)		+= olpc.o
-
-pci-y				:= fixup.o
-
-# Do not change the ordering here. There is a nasty init function
-# ordering dependency which breaks when you move acpi.o below
-# legacy/irq.o
-pci-$(CONFIG_ACPI)		+= acpi.o
-pci-y				+= legacy.o irq.o
-
-# Careful: VISWS overrule the pci-y above. The colons are
-# therefor correct. This needs a proper fix by distangling the code.
-pci-$(CONFIG_X86_VISWS)		:= visws.o fixup.o
-
-pci-$(CONFIG_X86_NUMAQ)		+= numa.o
-
-# Necessary for NUMAQ as well
-pci-$(CONFIG_NUMA)		+= mp_bus_to_node.o
-
-obj-y				+= $(pci-y) common.o early.o
-obj-y				+= amd_bus.o
diff --git a/arch/x86/pci/Makefile_64 b/arch/x86/pci/Makefile_64
deleted file mode 100644
index fd47068..0000000
--- a/arch/x86/pci/Makefile_64
+++ /dev/null
@@ -1,17 +0,0 @@
-#
-# Makefile for X86_64 specific PCI routines
-#
-# Reuse the i386 PCI subsystem
-#
-EXTRA_CFLAGS += -Iarch/x86/pci
-
-obj-y		:= i386.o
-obj-$(CONFIG_PCI_DIRECT)+= direct.o
-obj-y		+= fixup.o init.o
-obj-$(CONFIG_ACPI)	+= acpi.o
-obj-y			+= legacy.o irq.o common.o early.o
-# mmconfig has a 64bit special
-obj-$(CONFIG_PCI_MMCONFIG) += mmconfig_64.o direct.o mmconfig-shared.o
-
-obj-y		+= amd_bus.o
-
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 4fa52d3..19af069 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -223,7 +223,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
 	return bus;
 }
 
-static int __init pci_acpi_init(void)
+int __init pci_acpi_init(void)
 {
 	struct pci_dev *dev = NULL;
 
@@ -257,4 +257,3 @@ static int __init pci_acpi_init(void)
 
 	return 0;
 }
-subsys_initcall(pci_acpi_init);
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index d02c598..dbf5323 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -1,44 +1,25 @@
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <linux/topology.h>
 #include "pci.h"
 
 #ifdef CONFIG_X86_64
-
 #include <asm/pci-direct.h>
 #include <asm/mpspec.h>
 #include <linux/cpumask.h>
-#include <linux/topology.h>
+#endif
 
 /*
  * This discovers the pcibus <-> node mapping on AMD K8.
  * also get peer root bus resource for io,mmio
  */
 
-
-/*
- * sub bus (transparent) will use entres from 3 to store extra from root,
- * so need to make sure have enought slot there, increase PCI_BUS_NUM_RESOURCES?
- */
-#define RES_NUM 16
-struct pci_root_info {
-	char name[12];
-	unsigned int res_num;
-	struct resource res[RES_NUM];
-	int bus_min;
-	int bus_max;
-	int node;
-	int link;
-};
-
-/* 4 at this time, it may become to 32 */
-#define PCI_ROOT_NR 4
-static int pci_root_num;
-static struct pci_root_info pci_root_info[PCI_ROOT_NR];
-
 #ifdef CONFIG_NUMA
 
 #define BUS_NR 256
 
+#ifdef CONFIG_X86_64
+
 static int mp_bus_to_node[BUS_NR];
 
 void set_mp_bus_to_node(int busnum, int node)
@@ -65,7 +46,52 @@ int get_mp_bus_to_node(int busnum)
 
 	return node;
 }
-#endif
+
+#else /* CONFIG_X86_32 */
+
+static unsigned char mp_bus_to_node[BUS_NR];
+
+void set_mp_bus_to_node(int busnum, int node)
+{
+	if (busnum >= 0 &&  busnum < BUS_NR)
+	mp_bus_to_node[busnum] = (unsigned char) node;
+}
+
+int get_mp_bus_to_node(int busnum)
+{
+	int node;
+
+	if (busnum < 0 || busnum > (BUS_NR - 1))
+		return 0;
+	node = mp_bus_to_node[busnum];
+	return node;
+}
+
+#endif /* CONFIG_X86_32 */
+
+#endif /* CONFIG_NUMA */
+
+#ifdef CONFIG_X86_64
+
+/*
+ * sub bus (transparent) will use entres from 3 to store extra from root,
+ * so need to make sure have enought slot there, increase PCI_BUS_NUM_RESOURCES?
+ */
+#define RES_NUM 16
+struct pci_root_info {
+	char name[12];
+	unsigned int res_num;
+	struct resource res[RES_NUM];
+	int bus_min;
+	int bus_max;
+	int node;
+	int link;
+};
+
+/* 4 at this time, it may become to 32 */
+#define PCI_ROOT_NR 4
+static int pci_root_num;
+static struct pci_root_info pci_root_info[PCI_ROOT_NR];
 
 void set_pci_bus_resources_arch_default(struct pci_bus *b)
 {
@@ -552,7 +578,7 @@ static int __init enable_pci_io_ecs(void)
 	/* assume all cpus from fam10h have IO ECS */
         if (boot_cpu_data.x86 < 0x10)
 		return 0;
-	on_each_cpu(enable_pci_io_ecs_per_cpu, NULL, 1, 1);
+	on_each_cpu(enable_pci_io_ecs_per_cpu, NULL, 1);
 	pci_probe |= PCI_HAS_IO_ECS;
 	return 0;
 }
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 00a319c..1485a26 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -20,6 +20,7 @@
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
 				PCI_PROBE_MMCONF;
 
+unsigned int pci_early_dump_regs;
 static int pci_bf_sort;
 int pci_routeirq;
 int noioapicquirk;
@@ -33,7 +34,7 @@ struct pci_raw_ops *raw_pci_ext_ops;
 int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn,
 						int reg, int len, u32 *val)
 {
-	if (reg < 256 && raw_pci_ops)
+	if (domain == 0 && reg < 256 && raw_pci_ops)
 		return raw_pci_ops->read(domain, bus, devfn, reg, len, val);
 	if (raw_pci_ext_ops)
 		return raw_pci_ext_ops->read(domain, bus, devfn, reg, len, val);
@@ -43,7 +44,7 @@ int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn,
 int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn,
 						int reg, int len, u32 val)
 {
-	if (reg < 256 && raw_pci_ops)
+	if (domain == 0 && reg < 256 && raw_pci_ops)
 		return raw_pci_ops->write(domain, bus, devfn, reg, len, val);
 	if (raw_pci_ext_ops)
 		return raw_pci_ext_ops->write(domain, bus, devfn, reg, len, val);
@@ -123,6 +124,21 @@ void __init dmi_check_skip_isa_align(void)
 	dmi_check_system(can_skip_pciprobe_dmi_table);
 }
 
+static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
+{
+	struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE];
+
+	if (pci_probe & PCI_NOASSIGN_ROMS) {
+		if (rom_r->parent)
+			return;
+		if (rom_r->start) {
+			/* we deal with BIOS assigned ROM later */
+			return;
+		}
+		rom_r->start = rom_r->end = rom_r->flags = 0;
+	}
+}
+
 /*
  *  Called after each bus is probed, but before its children
  *  are examined.
@@ -130,7 +146,11 @@ void __init dmi_check_skip_isa_align(void)
 
 void __devinit  pcibios_fixup_bus(struct pci_bus *b)
 {
+	struct pci_dev *dev;
+
 	pci_read_bridge_bases(b);
+	list_for_each_entry(dev, &b->devices, bus_list)
+		pcibios_fixup_device_resources(dev);
 }
 
 /*
@@ -386,7 +406,7 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum)
 
 extern u8 pci_cache_line_size;
 
-static int __init pcibios_init(void)
+int __init pcibios_init(void)
 {
 	struct cpuinfo_x86 *c = &boot_cpu_data;
 
@@ -413,8 +433,6 @@ static int __init pcibios_init(void)
 	return 0;
 }
 
-subsys_initcall(pcibios_init);
-
 char * __devinit  pcibios_setup(char *str)
 {
 	if (!strcmp(str, "off")) {
@@ -485,12 +503,18 @@ char * __devinit  pcibios_setup(char *str)
 	else if (!strcmp(str, "rom")) {
 		pci_probe |= PCI_ASSIGN_ROMS;
 		return NULL;
+	} else if (!strcmp(str, "norom")) {
+		pci_probe |= PCI_NOASSIGN_ROMS;
+		return NULL;
 	} else if (!strcmp(str, "assign-busses")) {
 		pci_probe |= PCI_ASSIGN_ALL_BUSSES;
 		return NULL;
 	} else if (!strcmp(str, "use_crs")) {
 		pci_probe |= PCI_USE__CRS;
 		return NULL;
+	} else if (!strcmp(str, "earlydump")) {
+		pci_early_dump_regs = 1;
+		return NULL;
 	} else if (!strcmp(str, "routeirq")) {
 		pci_routeirq = 1;
 		return NULL;
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index 42df4b6..858dbe3 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -49,7 +49,14 @@ void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val)
 {
 	PDprintk("%x writing to %x: %x\n", slot, offset, val);
 	outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
-	outb(val, 0xcfc);
+	outb(val, 0xcfc + (offset&3));
+}
+
+void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
+{
+	PDprintk("%x writing to %x: %x\n", slot, offset, val);
+	outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
+	outw(val, 0xcfc + (offset&2));
 }
 
 int early_pci_allowed(void)
@@ -57,3 +64,54 @@ int early_pci_allowed(void)
 	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
 			PCI_PROBE_CONF1;
 }
+
+void early_dump_pci_device(u8 bus, u8 slot, u8 func)
+{
+	int i;
+	int j;
+	u32 val;
+
+	printk("PCI: %02x:%02x:%02x", bus, slot, func);
+
+	for (i = 0; i < 256; i += 4) {
+		if (!(i & 0x0f))
+			printk("\n%04x:",i);
+
+		val = read_pci_config(bus, slot, func, i);
+		for (j = 0; j < 4; j++) {
+			printk(" %02x", val & 0xff);
+			val >>= 8;
+		}
+	}
+	printk("\n");
+}
+
+void early_dump_pci_devices(void)
+{
+	unsigned bus, slot, func;
+
+	if (!early_pci_allowed())
+		return;
+
+	for (bus = 0; bus < 256; bus++) {
+		for (slot = 0; slot < 32; slot++) {
+			for (func = 0; func < 8; func++) {
+				u32 class;
+				u8 type;
+				class = read_pci_config(bus, slot, func,
+							PCI_CLASS_REVISION);
+				if (class == 0xffffffff)
+					break;
+
+				early_dump_pci_device(bus, slot, func);
+
+				/* No multi-function device? */
+				type = read_pci_config_byte(bus, slot, func,
+							       PCI_HEADER_TYPE);
+				if (!(type & 0x80))
+					break;
+			}
+		}
+	}
+}
+
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 6ccd7a1..2aafb67 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -334,7 +334,9 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
 		flags = new_flags;
 	}
 
-	if (vma->vm_pgoff <= max_pfn_mapped &&
+	if (((vma->vm_pgoff < max_low_pfn_mapped) ||
+	     (vma->vm_pgoff >= (1UL<<(32 - PAGE_SHIFT)) &&
+	      vma->vm_pgoff < max_pfn_mapped)) &&
 	    ioremap_change_attr((unsigned long)__va(addr), len, flags)) {
 		free_memtype(addr, addr + len);
 		return -EINVAL;
diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c
index b821f44..d6c950f 100644
--- a/arch/x86/pci/init.c
+++ b/arch/x86/pci/init.c
@@ -4,7 +4,7 @@
 
 /* arch_initcall has too random ordering, so call the initializers
    in the right sequence from here. */
-static __init int pci_access_init(void)
+static __init int pci_arch_init(void)
 {
 #ifdef CONFIG_PCI_DIRECT
 	int type = 0;
@@ -40,4 +40,4 @@ static __init int pci_access_init(void)
 
 	return 0;
 }
-arch_initcall(pci_access_init);
+arch_initcall(pci_arch_init);
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index f0859de..6a06a2e 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -45,7 +45,8 @@ struct irq_router {
 	char *name;
 	u16 vendor, device;
 	int (*get)(struct pci_dev *router, struct pci_dev *dev, int pirq);
-	int (*set)(struct pci_dev *router, struct pci_dev *dev, int pirq, int new);
+	int (*set)(struct pci_dev *router, struct pci_dev *dev, int pirq,
+		int new);
 };
 
 struct irq_router_handler {
@@ -77,7 +78,8 @@ static inline struct irq_routing_table *pirq_check_routing_table(u8 *addr)
 	for (i = 0; i < rt->size; i++)
 		sum += addr[i];
 	if (!sum) {
-		DBG(KERN_DEBUG "PCI: Interrupt Routing Table found at 0x%p\n", rt);
+		DBG(KERN_DEBUG "PCI: Interrupt Routing Table found at 0x%p\n",
+			rt);
 		return rt;
 	}
 	return NULL;
@@ -183,7 +185,8 @@ static unsigned int read_config_nybble(struct pci_dev *router, unsigned offset,
 	return (nr & 1) ? (x >> 4) : (x & 0xf);
 }
 
-static void write_config_nybble(struct pci_dev *router, unsigned offset, unsigned nr, unsigned int val)
+static void write_config_nybble(struct pci_dev *router, unsigned offset,
+	unsigned nr, unsigned int val)
 {
 	u8 x;
 	unsigned reg = offset + (nr >> 1);
@@ -467,7 +470,8 @@ static int pirq_serverworks_get(struct pci_dev *router, struct pci_dev *dev, int
 	return inb(0xc01) & 0xf;
 }
 
-static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
+static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev,
+	int pirq, int irq)
 {
 	outb(pirq, 0xc00);
 	outb(irq, 0xc01);
@@ -660,7 +664,8 @@ static __init int vlsi_router_probe(struct irq_router *r, struct pci_dev *router
 }
 
 
-static __init int serverworks_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
+static __init int serverworks_router_probe(struct irq_router *r,
+		struct pci_dev *router, u16 device)
 {
 	switch (device) {
 	case PCI_DEVICE_ID_SERVERWORKS_OSB4:
@@ -827,10 +832,12 @@ static void __init pirq_find_router(struct irq_router *r)
 
 	for (h = pirq_routers; h->vendor; h++) {
 		/* First look for a router match */
-		if (rt->rtr_vendor == h->vendor && h->probe(r, pirq_router_dev, rt->rtr_device))
+		if (rt->rtr_vendor == h->vendor &&
+			h->probe(r, pirq_router_dev, rt->rtr_device))
 			break;
 		/* Fall back to a device match */
-		if (pirq_router_dev->vendor == h->vendor && h->probe(r, pirq_router_dev, pirq_router_dev->device))
+		if (pirq_router_dev->vendor == h->vendor &&
+			h->probe(r, pirq_router_dev, pirq_router_dev->device))
 			break;
 	}
 	printk(KERN_INFO "PCI: Using IRQ router %s [%04x/%04x] at %s\n",
@@ -845,11 +852,13 @@ static void __init pirq_find_router(struct irq_router *r)
 static struct irq_info *pirq_get_info(struct pci_dev *dev)
 {
 	struct irq_routing_table *rt = pirq_table;
-	int entries = (rt->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info);
+	int entries = (rt->size - sizeof(struct irq_routing_table)) /
+		sizeof(struct irq_info);
 	struct irq_info *info;
 
 	for (info = rt->slots; entries--; info++)
-		if (info->bus == dev->bus->number && PCI_SLOT(info->devfn) == PCI_SLOT(dev->devfn))
+		if (info->bus == dev->bus->number &&
+			PCI_SLOT(info->devfn) == PCI_SLOT(dev->devfn))
 			return info;
 	return NULL;
 }
@@ -890,7 +899,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
 		DBG(" -> not routed\n" KERN_DEBUG);
 		return 0;
 	}
-	DBG(" -> PIRQ %02x, mask %04x, excl %04x", pirq, mask, pirq_table->exclusive_irqs);
+	DBG(" -> PIRQ %02x, mask %04x, excl %04x", pirq, mask,
+		pirq_table->exclusive_irqs);
 	mask &= pcibios_irq_mask;
 
 	/* Work around broken HP Pavilion Notebooks which assign USB to
@@ -903,7 +913,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
 	}
 
 	/* same for Acer Travelmate 360, but with CB and irq 11 -> 10 */
-	if (acer_tm360_irqrouting && dev->irq == 11 && dev->vendor == PCI_VENDOR_ID_O2) {
+	if (acer_tm360_irqrouting && dev->irq == 11 &&
+		dev->vendor == PCI_VENDOR_ID_O2) {
 		pirq = 0x68;
 		mask = 0x400;
 		dev->irq = r->get(pirq_router_dev, dev, pirq);
@@ -920,15 +931,16 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
 			newirq = 0;
 		else
 			printk("\n" KERN_WARNING
-			"PCI: IRQ %i for device %s doesn't match PIRQ mask "
-			"- try pci=usepirqmask\n" KERN_DEBUG, newirq,
-			pci_name(dev));
+				"PCI: IRQ %i for device %s doesn't match PIRQ mask - try pci=usepirqmask\n"
+				KERN_DEBUG, newirq,
+				pci_name(dev));
 	}
 	if (!newirq && assign) {
 		for (i = 0; i < 16; i++) {
 			if (!(mask & (1 << i)))
 				continue;
-			if (pirq_penalty[i] < pirq_penalty[newirq] && can_request_irq(i, IRQF_SHARED))
+			if (pirq_penalty[i] < pirq_penalty[newirq] &&
+				can_request_irq(i, IRQF_SHARED))
 				newirq = i;
 		}
 	}
@@ -944,7 +956,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
 		DBG(" -> got IRQ %d\n", irq);
 		msg = "Found";
 		eisa_set_level_irq(irq);
-	} else if (newirq && r->set && (dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) {
+	} else if (newirq && r->set &&
+		(dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) {
 		DBG(" -> assigning IRQ %d", newirq);
 		if (r->set(pirq_router_dev, dev, pirq, newirq)) {
 			eisa_set_level_irq(newirq);
@@ -962,7 +975,8 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
 		} else
 			return 0;
 	}
-	printk(KERN_INFO "PCI: %s IRQ %d for device %s\n", msg, irq, pci_name(dev));
+	printk(KERN_INFO "PCI: %s IRQ %d for device %s\n", msg, irq,
+		pci_name(dev));
 
 	/* Update IRQ for all devices with the same pirq value */
 	while ((dev2 = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev2)) != NULL) {
@@ -974,7 +988,10 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
 		if (!info)
 			continue;
 		if (info->irq[pin].link == pirq) {
-			/* We refuse to override the dev->irq information. Give a warning! */
+			/*
+			 * We refuse to override the dev->irq
+			 * information. Give a warning!
+			 */
 			if (dev2->irq && dev2->irq != irq && \
 			(!(pci_probe & PCI_USE_PIRQ_MASK) || \
 			((1 << dev2->irq) & mask))) {
@@ -987,7 +1004,9 @@ static int pcibios_lookup_irq(struct pci_dev *dev, int assign)
 			dev2->irq = irq;
 			pirq_penalty[irq]++;
 			if (dev != dev2)
-				printk(KERN_INFO "PCI: Sharing IRQ %d with %s\n", irq, pci_name(dev2));
+				printk(KERN_INFO
+					"PCI: Sharing IRQ %d with %s\n",
+					irq, pci_name(dev2));
 		}
 	}
 	return 1;
@@ -1001,15 +1020,21 @@ static void __init pcibios_fixup_irqs(void)
 	DBG(KERN_DEBUG "PCI: IRQ fixup\n");
 	while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
 		/*
-		 * If the BIOS has set an out of range IRQ number, just ignore it.
-		 * Also keep track of which IRQ's are already in use.
+		 * If the BIOS has set an out of range IRQ number, just
+		 * ignore it.  Also keep track of which IRQ's are
+		 * already in use.
 		 */
 		if (dev->irq >= 16) {
-			DBG(KERN_DEBUG "%s: ignoring bogus IRQ %d\n", pci_name(dev), dev->irq);
+			DBG(KERN_DEBUG "%s: ignoring bogus IRQ %d\n",
+				pci_name(dev), dev->irq);
 			dev->irq = 0;
 		}
-		/* If the IRQ is already assigned to a PCI device, ignore its ISA use penalty */
-		if (pirq_penalty[dev->irq] >= 100 && pirq_penalty[dev->irq] < 100000)
+		/*
+		 * If the IRQ is already assigned to a PCI device,
+		 * ignore its ISA use penalty
+		 */
+		if (pirq_penalty[dev->irq] >= 100 &&
+				pirq_penalty[dev->irq] < 100000)
 			pirq_penalty[dev->irq] = 0;
 		pirq_penalty[dev->irq]++;
 	}
@@ -1025,8 +1050,13 @@ static void __init pcibios_fixup_irqs(void)
 			int irq;
 
 			if (pin) {
-				pin--;		/* interrupt pins are numbered starting from 1 */
-				irq = IO_APIC_get_PCI_irq_vector(dev->bus->number, PCI_SLOT(dev->devfn), pin);
+				/*
+				 * interrupt pins are numbered starting
+				 * from 1
+				 */
+				pin--;
+				irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
+					PCI_SLOT(dev->devfn), pin);
 	/*
 	 * Busses behind bridges are typically not listed in the MP-table.
 	 * In this case we have to look up the IRQ based on the parent bus,
@@ -1067,7 +1097,8 @@ static int __init fix_broken_hp_bios_irq9(const struct dmi_system_id *d)
 {
 	if (!broken_hp_bios_irq9) {
 		broken_hp_bios_irq9 = 1;
-		printk(KERN_INFO "%s detected - fixing broken IRQ routing\n", d->ident);
+		printk(KERN_INFO "%s detected - fixing broken IRQ routing\n",
+			d->ident);
 	}
 	return 0;
 }
@@ -1080,7 +1111,8 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
 {
 	if (!acer_tm360_irqrouting) {
 		acer_tm360_irqrouting = 1;
-		printk(KERN_INFO "%s detected - fixing broken IRQ routing\n", d->ident);
+		printk(KERN_INFO "%s detected - fixing broken IRQ routing\n",
+			d->ident);
 	}
 	return 0;
 }
@@ -1092,7 +1124,8 @@ static struct dmi_system_id __initdata pciirq_dmi_table[] = {
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 			DMI_MATCH(DMI_BIOS_VERSION, "GE.M1.03"),
-			DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook Model GE"),
+			DMI_MATCH(DMI_PRODUCT_VERSION,
+				"HP Pavilion Notebook Model GE"),
 			DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
 		},
 	},
@@ -1107,7 +1140,7 @@ static struct dmi_system_id __initdata pciirq_dmi_table[] = {
 	{ }
 };
 
-static int __init pcibios_irq_init(void)
+int __init pcibios_irq_init(void)
 {
 	DBG(KERN_DEBUG "PCI: IRQ init\n");
 
@@ -1131,7 +1164,10 @@ static int __init pcibios_irq_init(void)
 				if (!(pirq_table->exclusive_irqs & (1 << i)))
 					pirq_penalty[i] += 100;
 		}
-		/* If we're using the I/O APIC, avoid using the PCI IRQ routing table */
+		/*
+		 * If we're using the I/O APIC, avoid using the PCI IRQ
+		 * routing table
+		 */
 		if (io_apic_assign_pci_irqs)
 			pirq_table = NULL;
 	}
@@ -1142,9 +1178,6 @@ static int __init pcibios_irq_init(void)
 	return 0;
 }
 
-subsys_initcall(pcibios_irq_init);
-
-
 static void pirq_penalize_isa_irq(int irq, int active)
 {
 	/*
@@ -1178,7 +1211,7 @@ static int pirq_enable_irq(struct pci_dev *dev)
 	if (pin && !pcibios_lookup_irq(dev, 1) && !dev->irq) {
 		char *msg = "";
 
-		pin--;		/* interrupt pins are numbered starting from 1 */
+		pin--; /* interrupt pins are numbered starting from 1 */
 
 		if (io_apic_assign_pci_irqs) {
 			int irq;
@@ -1198,13 +1231,16 @@ static int pirq_enable_irq(struct pci_dev *dev)
 				irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number,
 						PCI_SLOT(bridge->devfn), pin);
 				if (irq >= 0)
-					printk(KERN_WARNING "PCI: using PPB %s[%c] to get irq %d\n",
-						pci_name(bridge), 'A' + pin, irq);
+					printk(KERN_WARNING
+						"PCI: using PPB %s[%c] to get irq %d\n",
+						pci_name(bridge),
+						'A' + pin, irq);
 				dev = bridge;
 			}
 			dev = temp_dev;
 			if (irq >= 0) {
-				printk(KERN_INFO "PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n",
+				printk(KERN_INFO
+					"PCI->APIC IRQ transform: %s[%c] -> IRQ %d\n",
 					pci_name(dev), 'A' + pin, irq);
 				dev->irq = irq;
 				return 0;
@@ -1215,12 +1251,17 @@ static int pirq_enable_irq(struct pci_dev *dev)
 		else
 			msg = " Please try using pci=biosirq.";
 
-		/* With IDE legacy devices the IRQ lookup failure is not a problem.. */
-		if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE && !(dev->class & 0x5))
+		/*
+		 * With IDE legacy devices the IRQ lookup failure is not
+		 * a problem..
+		 */
+		if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE &&
+				!(dev->class & 0x5))
 			return 0;
 
-		printk(KERN_WARNING "PCI: No IRQ known for interrupt pin %c of device %s.%s\n",
-		       'A' + pin, pci_name(dev), msg);
+		printk(KERN_WARNING
+			"PCI: No IRQ known for interrupt pin %c of device %s.%s\n",
+			'A' + pin, pci_name(dev), msg);
 	}
 	return 0;
 }
diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c
index a67921c..132876c 100644
--- a/arch/x86/pci/legacy.c
+++ b/arch/x86/pci/legacy.c
@@ -55,4 +55,18 @@ static int __init pci_legacy_init(void)
 	return 0;
 }
 
-subsys_initcall(pci_legacy_init);
+int __init pci_subsys_init(void)
+{
+#ifdef CONFIG_ACPI
+	pci_acpi_init();
+#endif
+	pci_legacy_init();
+	pcibios_irq_init();
+#ifdef CONFIG_X86_NUMAQ
+	pci_numa_init();
+#endif
+	pcibios_init();
+
+	return 0;
+}
+subsys_initcall(pci_subsys_init);
diff --git a/arch/x86/pci/mp_bus_to_node.c b/arch/x86/pci/mp_bus_to_node.c
deleted file mode 100644
index 0229439..0000000
--- a/arch/x86/pci/mp_bus_to_node.c
+++ /dev/null
@@ -1,23 +0,0 @@
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/topology.h>
-
-#define BUS_NR 256
-
-static unsigned char mp_bus_to_node[BUS_NR];
-
-void set_mp_bus_to_node(int busnum, int node)
-{
-	if (busnum >= 0 &&  busnum < BUS_NR)
-	mp_bus_to_node[busnum] = (unsigned char) node;
-}
-
-int get_mp_bus_to_node(int busnum)
-{
-	int node;
-
-	if (busnum < 0 || busnum > (BUS_NR - 1))
-		return 0;
-	node = mp_bus_to_node[busnum];
-	return node;
-}
diff --git a/arch/x86/pci/numa.c b/arch/x86/pci/numa.c
index 99f1ecd..8b5ca19 100644
--- a/arch/x86/pci/numa.c
+++ b/arch/x86/pci/numa.c
@@ -151,7 +151,7 @@ static void __devinit pci_fixup_i450nx(struct pci_dev *d)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, pci_fixup_i450nx);
 
-static int __init pci_numa_init(void)
+int __init pci_numa_init(void)
 {
 	int quad;
 
@@ -176,5 +176,3 @@ static int __init pci_numa_init(void)
 		}
 	return 0;
 }
-
-subsys_initcall(pci_numa_init);
diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h
index ba263e6..3e25deb 100644
--- a/arch/x86/pci/pci.h
+++ b/arch/x86/pci/pci.h
@@ -28,6 +28,7 @@
 #define PCI_USE__CRS		0x10000
 #define PCI_CHECK_ENABLE_AMD_MMCONF	0x20000
 #define PCI_HAS_IO_ECS		0x40000
+#define PCI_NOASSIGN_ROMS	0x80000
 
 extern unsigned int pci_probe;
 extern unsigned long pirq_table_addr;
@@ -39,9 +40,6 @@ enum pci_bf_sort_state {
 	pci_dmi_bf,
 };
 
-extern void __init dmi_check_pciprobe(void);
-extern void __init dmi_check_skip_isa_align(void);
-
 /* pci-i386.c */
 
 extern unsigned int pcibios_max_latency;
@@ -99,10 +97,19 @@ extern struct pci_raw_ops *raw_pci_ext_ops;
 
 extern struct pci_raw_ops pci_direct_conf1;
 
+/* arch_initcall level */
 extern int pci_direct_probe(void);
 extern void pci_direct_init(int type);
 extern void pci_pcbios_init(void);
 extern int pci_olpc_init(void);
+extern void __init dmi_check_pciprobe(void);
+extern void __init dmi_check_skip_isa_align(void);
+
+/* some common used subsys_initcalls */
+extern int __init pci_acpi_init(void);
+extern int __init pcibios_irq_init(void);
+extern int __init pci_numa_init(void);
+extern int __init pcibios_init(void);
 
 /* pci-mmconfig.c */
 
diff --git a/arch/x86/pci/visws.c b/arch/x86/pci/visws.c
index c2df4e9..1a7bed4 100644
--- a/arch/x86/pci/visws.c
+++ b/arch/x86/pci/visws.c
@@ -8,18 +8,19 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 
-#include "cobalt.h"
-#include "lithium.h"
+#include <asm/setup.h>
+#include <asm/visws/cobalt.h>
+#include <asm/visws/lithium.h>
 
 #include "pci.h"
 
 static int pci_visws_enable_irq(struct pci_dev *dev) { return 0; }
 static void pci_visws_disable_irq(struct pci_dev *dev) { }
 
-int (*pcibios_enable_irq)(struct pci_dev *dev) = &pci_visws_enable_irq;
-void (*pcibios_disable_irq)(struct pci_dev *dev) = &pci_visws_disable_irq;
+/* int (*pcibios_enable_irq)(struct pci_dev *dev) = &pci_visws_enable_irq; */
+/* void (*pcibios_disable_irq)(struct pci_dev *dev) = &pci_visws_disable_irq; */
 
-void __init pcibios_penalize_isa_irq(int irq, int active) {}
+/* void __init pcibios_penalize_isa_irq(int irq, int active) {} */
 
 
 unsigned int pci_bus0, pci_bus1;
@@ -85,7 +86,7 @@ void __init pcibios_update_irq(struct pci_dev *dev, int irq)
 	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
 }
 
-static int __init pcibios_init(void)
+static int __init pci_visws_init(void)
 {
 	/* The VISWS supports configuration access type 1 only */
 	pci_probe = (pci_probe | PCI_PROBE_CONF1) &
@@ -105,4 +106,17 @@ static int __init pcibios_init(void)
 	return 0;
 }
 
-subsys_initcall(pcibios_init);
+static __init int pci_subsys_init(void)
+{
+	if (!is_visws_box())
+		return -1;
+
+	pcibios_enable_irq = &pci_visws_enable_irq;
+	pcibios_disable_irq = &pci_visws_disable_irq;
+
+	pci_visws_init();
+	pcibios_init();
+
+	return 0;
+}
+subsys_initcall(pci_subsys_init);