Merge branch 'linux-2.6' into for-linus

30 files changed, 363 insertions, 245 deletions

diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index 7cc0b189b82..0677908dfa0 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -42,6 +42,10 @@ cflags-$(CONFIG_REGPARM) += -mregparm=3
 # temporary until string.h is fixed
 cflags-y += -ffreestanding
 
+# this works around some issues with generating unwind tables in older gccs
+# newer gccs do it by default
+cflags-y += -maccumulate-outgoing-args
+
 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
 # a lot more stack due to the lack of sharing of stacklots:
 CFLAGS				+= $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
@@ -51,8 +55,8 @@ cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
 AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
 
 # is .cfi_signal_frame supported too?
-cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
-AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
+cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
+AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
 
 CFLAGS += $(cflags-y)
 
diff --git a/arch/i386/defconfig b/arch/i386/defconfig
index 60c0c02574f..97aacd6bd7d 100644
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.19-rc1
-# Thu Oct  5 13:04:53 2006
+# Linux kernel version: 2.6.19-rc2-git4
+# Sat Oct 21 03:38:56 2006
 #
 CONFIG_X86_32=y
 CONFIG_GENERIC_TIME=y
@@ -380,8 +380,8 @@ CONFIG_INET6_XFRM_MODE_TRANSPORT=y
 CONFIG_INET6_XFRM_MODE_TUNNEL=y
 # CONFIG_INET6_XFRM_MODE_BEET is not set
 # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+CONFIG_IPV6_SIT=y
 # CONFIG_IPV6_TUNNEL is not set
-# CONFIG_IPV6_SUBTREES is not set
 # CONFIG_IPV6_MULTIPLE_TABLES is not set
 # CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETFILTER is not set
@@ -483,6 +483,13 @@ CONFIG_BLK_DEV_INITRD=y
 # CONFIG_ATA_OVER_ETH is not set
 
 #
+# Misc devices
+#
+# CONFIG_IBM_ASM is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
+
+#
 # ATA/ATAPI/MFM/RLL support
 #
 CONFIG_IDE=y
@@ -1024,6 +1031,7 @@ CONFIG_HANGCHECK_TIMER=y
 #
 # Dallas's 1-wire bus
 #
+# CONFIG_W1 is not set
 
 #
 # Hardware Monitoring support
@@ -1032,12 +1040,6 @@ CONFIG_HANGCHECK_TIMER=y
 # CONFIG_HWMON_VID is not set
 
 #
-# Misc devices
-#
-# CONFIG_IBM_ASM is not set
-# CONFIG_TIFM_CORE is not set
-
-#
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
@@ -1169,7 +1171,6 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_ATI_REMOTE2 is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
 # CONFIG_USB_APPLETOUCH is not set
-# CONFIG_USB_TRANCEVIBRATOR is not set
 
 #
 # USB Imaging devices
@@ -1215,6 +1216,7 @@ CONFIG_USB_MON=y
 # CONFIG_USB_APPLEDISPLAY is not set
 # CONFIG_USB_SISUSBVGA is not set
 # CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
 # CONFIG_USB_TEST is not set
 
 #
@@ -1284,6 +1286,7 @@ CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_XATTR=y
 CONFIG_EXT3_FS_POSIX_ACL=y
 # CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
 CONFIG_JBD=y
 # CONFIG_JBD_DEBUG is not set
 CONFIG_FS_MBCACHE=y
@@ -1307,6 +1310,7 @@ CONFIG_DNOTIFY=y
 # CONFIG_AUTOFS_FS is not set
 CONFIG_AUTOFS4_FS=y
 # CONFIG_FUSE_FS is not set
+CONFIG_GENERIC_ACL=y
 
 #
 # CD-ROM/DVD Filesystems
@@ -1384,7 +1388,6 @@ CONFIG_SUNRPC=y
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
 # CONFIG_9P_FS is not set
-CONFIG_GENERIC_ACL=y
 
 #
 # Partition Types
@@ -1437,10 +1440,6 @@ CONFIG_NLS_ISO8859_15=y
 CONFIG_NLS_UTF8=y
 
 #
-# Distributed Lock Manager
-#
-
-#
 # Instrumentation Support
 #
 CONFIG_PROFILING=y
@@ -1480,6 +1479,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_UNWIND_INFO=y
 CONFIG_STACK_UNWIND=y
 # CONFIG_FORCED_INLINING is not set
+# CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_LKDTM is not set
 CONFIG_EARLY_PRINTK=y
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index ab974ff9707..c8f96cff07c 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -70,7 +70,7 @@ static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return
 
 #define PREFIX			"ACPI: "
 
-int acpi_noirq __initdata;	/* skip ACPI IRQ initialization */
+int acpi_noirq;				/* skip ACPI IRQ initialization */
 int acpi_pci_disabled __initdata;	/* skip ACPI PCI scan and IRQ initialization */
 int acpi_ht __initdata = 1;	/* enable HT */
 
@@ -82,6 +82,7 @@ EXPORT_SYMBOL(acpi_strict);
 acpi_interrupt_flags acpi_sci_flags __initdata;
 int acpi_sci_override_gsi __initdata;
 int acpi_skip_timer_override __initdata;
+int acpi_use_timer_override __initdata;
 
 #ifdef CONFIG_X86_LOCAL_APIC
 static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
@@ -332,7 +333,7 @@ acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end)
 /*
  * Parse Interrupt Source Override for the ACPI SCI
  */
-static void acpi_sci_ioapic_setup(u32 bus_irq, u32 gsi, u16 polarity, u16 trigger)
+static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
 {
 	if (trigger == 0)	/* compatible SCI trigger is level */
 		trigger = 3;
@@ -352,13 +353,13 @@ static void acpi_sci_ioapic_setup(u32 bus_irq, u32 gsi, u16 polarity, u16 trigge
 	 * If GSI is < 16, this will update its flags,
 	 * else it will create a new mp_irqs[] entry.
 	 */
-	mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
+	mp_override_legacy_irq(gsi, polarity, trigger, gsi);
 
 	/*
 	 * stash over-ride to indicate we've been here
 	 * and for later update of acpi_fadt
 	 */
-	acpi_sci_override_gsi = bus_irq;
+	acpi_sci_override_gsi = gsi;
 	return;
 }
 
@@ -376,7 +377,7 @@ acpi_parse_int_src_ovr(acpi_table_entry_header * header,
 	acpi_table_print_madt_entry(header);
 
 	if (intsrc->bus_irq == acpi_fadt.sci_int) {
-		acpi_sci_ioapic_setup(intsrc->bus_irq, intsrc->global_irq,
+		acpi_sci_ioapic_setup(intsrc->global_irq,
 				      intsrc->flags.polarity,
 				      intsrc->flags.trigger);
 		return 0;
@@ -879,7 +880,7 @@ static int __init acpi_parse_madt_ioapic_entries(void)
 	 * pretend we got one so we can set the SCI flags.
 	 */
 	if (!acpi_sci_override_gsi)
-		acpi_sci_ioapic_setup(acpi_fadt.sci_int, acpi_fadt.sci_int, 0, 0);
+		acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0);
 
 	/* Fill in identity legacy mapings where no override */
 	mp_config_acpi_legacy_irqs();
@@ -1300,6 +1301,13 @@ static int __init parse_acpi_skip_timer_override(char *arg)
 	return 0;
 }
 early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override);
+
+static int __init parse_acpi_use_timer_override(char *arg)
+{
+	acpi_use_timer_override = 1;
+	return 0;
+}
+early_param("acpi_use_timer_override", parse_acpi_use_timer_override);
 #endif /* CONFIG_X86_IO_APIC */
 
 static int __init setup_acpi_sci(char *s)
diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c
index fe799b11ac0..c9841692bb7 100644
--- a/arch/i386/kernel/acpi/earlyquirk.c
+++ b/arch/i386/kernel/acpi/earlyquirk.c
@@ -27,11 +27,17 @@ static int __init check_bridge(int vendor, int device)
 #ifdef CONFIG_ACPI
 	/* According to Nvidia all timer overrides are bogus unless HPET
 	   is enabled. */
-	if (vendor == PCI_VENDOR_ID_NVIDIA) {
+	if (!acpi_use_timer_override && vendor == PCI_VENDOR_ID_NVIDIA) {
 		nvidia_hpet_detected = 0;
 		acpi_table_parse(ACPI_HPET, nvidia_hpet_check);
 		if (nvidia_hpet_detected == 0) {
 			acpi_skip_timer_override = 1;
+			  printk(KERN_INFO "Nvidia board "
+                       "detected. Ignoring ACPI "
+                       "timer override.\n");
+                printk(KERN_INFO "If you got timer trouble "
+			 	 "try acpi_use_timer_override\n");
+
 		}
 	}
 #endif
diff --git a/arch/i386/kernel/alternative.c b/arch/i386/kernel/alternative.c
index 28ab8064976..583c238e17f 100644
--- a/arch/i386/kernel/alternative.c
+++ b/arch/i386/kernel/alternative.c
@@ -344,6 +344,7 @@ void alternatives_smp_switch(int smp)
 
 void __init alternative_instructions(void)
 {
+	unsigned long flags;
 	if (no_replacement) {
 		printk(KERN_INFO "(SMP-)alternatives turned off\n");
 		free_init_pages("SMP alternatives",
@@ -351,6 +352,8 @@ void __init alternative_instructions(void)
 				(unsigned long)__smp_alt_end);
 		return;
 	}
+
+	local_irq_save(flags);
 	apply_alternatives(__alt_instructions, __alt_instructions_end);
 
 	/* switch to patch-once-at-boottime-only mode and free the
@@ -386,4 +389,5 @@ void __init alternative_instructions(void)
 		alternatives_smp_switch(0);
 	}
 #endif
+	local_irq_restore(flags);
 }
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index b42f2d914af..a60358fe9a4 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -198,7 +198,7 @@
  *   (APM) BIOS Interface Specification, Revision 1.2, February 1996.
  *
  * [This document is available from Microsoft at:
- *    http://www.microsoft.com/hwdev/busbios/amp_12.htm]
+ *    http://www.microsoft.com/whdc/archive/amp_12.mspx]
  */
 
 #include <linux/module.h>
@@ -540,11 +540,30 @@ static inline void apm_restore_cpus(cpumask_t mask)
  * Also, we KNOW that for the non error case of apm_bios_call, there
  * is no useful data returned in the low order 8 bits of eax.
  */
-#define APM_DO_CLI	\
-	if (apm_info.allow_ints) \
-		local_irq_enable(); \
-	else \
+
+static inline unsigned long __apm_irq_save(void)
+{
+	unsigned long flags;
+	local_save_flags(flags);
+	if (apm_info.allow_ints) {
+		if (irqs_disabled_flags(flags))
+			local_irq_enable();
+	} else
+		local_irq_disable();
+
+	return flags;
+}
+
+#define apm_irq_save(flags) \
+	do { flags = __apm_irq_save(); } while (0)
+
+static inline void apm_irq_restore(unsigned long flags)
+{
+	if (irqs_disabled_flags(flags))
 		local_irq_disable();
+	else if (irqs_disabled())
+		local_irq_enable();
+}
 
 #ifdef APM_ZERO_SEGS
 #	define APM_DECL_SEGS \
@@ -596,12 +615,11 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
 	save_desc_40 = gdt[0x40 / 8];
 	gdt[0x40 / 8] = bad_bios_desc;
 
-	local_save_flags(flags);
-	APM_DO_CLI;
+	apm_irq_save(flags);
 	APM_DO_SAVE_SEGS;
 	apm_bios_call_asm(func, ebx_in, ecx_in, eax, ebx, ecx, edx, esi);
 	APM_DO_RESTORE_SEGS;
-	local_irq_restore(flags);
+	apm_irq_restore(flags);
 	gdt[0x40 / 8] = save_desc_40;
 	put_cpu();
 	apm_restore_cpus(cpus);
@@ -640,12 +658,11 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
 	save_desc_40 = gdt[0x40 / 8];
 	gdt[0x40 / 8] = bad_bios_desc;
 
-	local_save_flags(flags);
-	APM_DO_CLI;
+	apm_irq_save(flags);
 	APM_DO_SAVE_SEGS;
 	error = apm_bios_call_simple_asm(func, ebx_in, ecx_in, eax);
 	APM_DO_RESTORE_SEGS;
-	local_irq_restore(flags);
+	apm_irq_restore(flags);
 	gdt[0x40 / 8] = save_desc_40;
 	put_cpu();
 	apm_restore_cpus(cpus);
diff --git a/arch/i386/kernel/cpuid.c b/arch/i386/kernel/cpuid.c
index fde8bea85ce..ab0c327e79d 100644
--- a/arch/i386/kernel/cpuid.c
+++ b/arch/i386/kernel/cpuid.c
@@ -156,14 +156,14 @@ static struct file_operations cpuid_fops = {
 	.open = cpuid_open,
 };
 
-static int cpuid_class_device_create(int i)
+static int cpuid_device_create(int i)
 {
 	int err = 0;
-	struct class_device *class_err;
+	struct device *dev;
 
-	class_err = class_device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, i), NULL, "cpu%d",i);
-	if (IS_ERR(class_err))
-		err = PTR_ERR(class_err);
+	dev = device_create(cpuid_class, NULL, MKDEV(CPUID_MAJOR, i), "cpu%d",i);
+	if (IS_ERR(dev))
+		err = PTR_ERR(dev);
 	return err;
 }
 
@@ -174,10 +174,10 @@ static int cpuid_class_cpu_callback(struct notifier_block *nfb, unsigned long ac
 
 	switch (action) {
 	case CPU_ONLINE:
-		cpuid_class_device_create(cpu);
+		cpuid_device_create(cpu);
 		break;
 	case CPU_DEAD:
-		class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
+		device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
 		break;
 	}
 	return NOTIFY_OK;
@@ -206,7 +206,7 @@ static int __init cpuid_init(void)
 		goto out_chrdev;
 	}
 	for_each_online_cpu(i) {
-		err = cpuid_class_device_create(i);
+		err = cpuid_device_create(i);
 		if (err != 0) 
 			goto out_class;
 	}
@@ -218,7 +218,7 @@ static int __init cpuid_init(void)
 out_class:
 	i = 0;
 	for_each_online_cpu(i) {
-		class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, i));
+		device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, i));
 	}
 	class_destroy(cpuid_class);
 out_chrdev:
@@ -232,7 +232,7 @@ static void __exit cpuid_exit(void)
 	int cpu = 0;
 
 	for_each_online_cpu(cpu)
-		class_device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
+		device_destroy(cpuid_class, MKDEV(CPUID_MAJOR, cpu));
 	class_destroy(cpuid_class);
 	unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
 	unregister_hotcpu_notifier(&cpuid_class_cpu_notifier);
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S
index be9d883c62c..ca31f18d277 100644
--- a/arch/i386/kernel/head.S
+++ b/arch/i386/kernel/head.S
@@ -317,7 +317,7 @@ is386:	movl $2,%ecx		# set MP
 	movl %eax,%gs
 	lldt %ax
 	cld			# gcc2 wants the direction flag cleared at all times
-	pushl %eax		# fake return address
+	pushl $0		# fake return address for unwinder
 #ifdef CONFIG_SMP
 	movb ready, %cl
 	movb $1, ready
diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c
index 477b24daff5..9a0060b92e3 100644
--- a/arch/i386/kernel/i8253.c
+++ b/arch/i386/kernel/i8253.c
@@ -109,7 +109,7 @@ static struct clocksource clocksource_pit = {
 
 static int __init init_pit_clocksource(void)
 {
-	if (num_possible_cpus() > 4) /* PIT does not scale! */
+	if (num_possible_cpus() > 1) /* PIT does not scale! */
 		return 0;
 
 	clocksource_pit.mult = clocksource_hz2mult(CLOCK_TICK_RATE, 20);
diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c
index d53eafb6daa..62996cd1708 100644
--- a/arch/i386/kernel/i8259.c
+++ b/arch/i386/kernel/i8259.c
@@ -113,7 +113,8 @@ void make_8259A_irq(unsigned int irq)
 {
 	disable_irq_nosync(irq);
 	io_apic_irqs &= ~(1<<irq);
-	set_irq_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
+	set_irq_chip_and_handler_name(irq, &i8259A_chip, handle_level_irq,
+				      "XT");
 	enable_irq(irq);
 }
 
@@ -369,8 +370,8 @@ void __init init_ISA_irqs (void)
 			/*
 			 * 16 old-style INTA-cycle interrupts:
 			 */
-			set_irq_chip_and_handler(i, &i8259A_chip,
-						 handle_level_irq);
+			set_irq_chip_and_handler_name(i, &i8259A_chip,
+						      handle_level_irq, "XT");
 		} else {
 			/*
 			 * 'high' PCI IRQs filled in on demand
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 27bceaf5ce4..3b7a63e0ed1 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -91,6 +91,46 @@ static struct irq_pin_list {
 	int apic, pin, next;
 } irq_2_pin[PIN_MAP_SIZE];
 
+struct io_apic {
+	unsigned int index;
+	unsigned int unused[3];
+	unsigned int data;
+};
+
+static __attribute_const__ struct io_apic __iomem *io_apic_base(int idx)
+{
+	return (void __iomem *) __fix_to_virt(FIX_IO_APIC_BASE_0 + idx)
+		+ (mp_ioapics[idx].mpc_apicaddr & ~PAGE_MASK);
+}
+
+static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
+{
+	struct io_apic __iomem *io_apic = io_apic_base(apic);
+	writel(reg, &io_apic->index);
+	return readl(&io_apic->data);
+}
+
+static inline void io_apic_write(unsigned int apic, unsigned int reg, unsigned int value)
+{
+	struct io_apic __iomem *io_apic = io_apic_base(apic);
+	writel(reg, &io_apic->index);
+	writel(value, &io_apic->data);
+}
+
+/*
+ * Re-write a value: to be used for read-modify-write
+ * cycles where the read already set up the index register.
+ *
+ * Older SiS APIC requires we rewrite the index register
+ */
+static inline void io_apic_modify(unsigned int apic, unsigned int reg, unsigned int value)
+{
+	volatile struct io_apic *io_apic = io_apic_base(apic);
+	if (sis_apic_bug)
+		writel(reg, &io_apic->index);
+	writel(value, &io_apic->data);
+}
+
 union entry_union {
 	struct { u32 w1, w2; };
 	struct IO_APIC_route_entry entry;
@@ -107,12 +147,34 @@ static struct IO_APIC_route_entry ioapic_read_entry(int apic, int pin)
 	return eu.entry;
 }
 
+/*
+ * When we write a new IO APIC routing entry, we need to write the high
+ * word first! If the mask bit in the low word is clear, we will enable
+ * the interrupt, and we need to make sure the entry is fully populated
+ * before that happens.
+ */
 static void ioapic_write_entry(int apic, int pin, struct IO_APIC_route_entry e)
 {
 	unsigned long flags;
 	union entry_union eu;
 	eu.entry = e;
 	spin_lock_irqsave(&ioapic_lock, flags);
+	io_apic_write(apic, 0x11 + 2*pin, eu.w2);
+	io_apic_write(apic, 0x10 + 2*pin, eu.w1);
+	spin_unlock_irqrestore(&ioapic_lock, flags);
+}
+
+/*
+ * When we mask an IO APIC routing entry, we need to write the low
+ * word first, in order to set the mask bit before we change the
+ * high bits!
+ */
+static void ioapic_mask_entry(int apic, int pin)
+{
+	unsigned long flags;
+	union entry_union eu = { .entry.mask = 1 };
+
+	spin_lock_irqsave(&ioapic_lock, flags);
 	io_apic_write(apic, 0x10 + 2*pin, eu.w1);
 	io_apic_write(apic, 0x11 + 2*pin, eu.w2);
 	spin_unlock_irqrestore(&ioapic_lock, flags);
@@ -234,9 +296,7 @@ static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin)
 	/*
 	 * Disable it in the IO-APIC irq-routing table:
 	 */
-	memset(&entry, 0, sizeof(entry));
-	entry.mask = 1;
-	ioapic_write_entry(apic, pin, entry);
+	ioapic_mask_entry(apic, pin);
 }
 
 static void clear_IO_APIC (void)
@@ -1225,11 +1285,13 @@ static void ioapic_register_intr(int irq, int vector, unsigned long trigger)
 {
 	if ((trigger == IOAPIC_AUTO && IO_APIC_irq_trigger(irq)) ||
 			trigger == IOAPIC_LEVEL)
-		set_irq_chip_and_handler(irq, &ioapic_chip,
-					 handle_fasteoi_irq);
-	else
-		set_irq_chip_and_handler(irq, &ioapic_chip,
-					 handle_edge_irq);
+		set_irq_chip_and_handler_name(irq, &ioapic_chip,
+					 handle_fasteoi_irq, "fasteoi");
+	else {
+		irq_desc[irq].status |= IRQ_DELAYED_DISABLE;
+		set_irq_chip_and_handler_name(irq, &ioapic_chip,
+					 handle_edge_irq, "edge");
+	}
 	set_intr_gate(vector, interrupt[irq]);
 }
 
@@ -2235,7 +2297,8 @@ static inline void check_timer(void)
 	printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
 
 	disable_8259A_irq(0);
-	set_irq_chip_and_handler(0, &lapic_chip, handle_fasteoi_irq);
+	set_irq_chip_and_handler_name(0, &lapic_chip, handle_fasteoi_irq,
+				      "fasteio");
 	apic_write_around(APIC_LVT0, APIC_DM_FIXED | vector);	/* Fixed mode */
 	enable_8259A_irq(0);
 
@@ -2541,7 +2604,8 @@ int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev)
 
 	write_msi_msg(irq, &msg);
 
-	set_irq_chip_and_handler(irq, &msi_chip, handle_edge_irq);
+	set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq,
+				      "edge");
 
 	return 0;
 }
@@ -2562,18 +2626,16 @@ void arch_teardown_msi_irq(unsigned int irq)
 
 static void target_ht_irq(unsigned int irq, unsigned int dest)
 {
-	u32 low, high;
-	low  = read_ht_irq_low(irq);
-	high = read_ht_irq_high(irq);
+	struct ht_irq_msg msg;
+	fetch_ht_irq_msg(irq, &msg);
 
-	low  &= ~(HT_IRQ_LOW_DEST_ID_MASK);
-	high &= ~(HT_IRQ_HIGH_DEST_ID_MASK);
+	msg.address_lo &= ~(HT_IRQ_LOW_DEST_ID_MASK);
+	msg.address_hi &= ~(HT_IRQ_HIGH_DEST_ID_MASK);
 
-	low  |= HT_IRQ_LOW_DEST_ID(dest);
-	high |= HT_IRQ_HIGH_DEST_ID(dest);
+	msg.address_lo |= HT_IRQ_LOW_DEST_ID(dest);
+	msg.address_hi |= HT_IRQ_HIGH_DEST_ID(dest);
 
-	write_ht_irq_low(irq, low);
-	write_ht_irq_high(irq, high);
+	write_ht_irq_msg(irq, &msg);
 }
 
 static void set_ht_irq_affinity(unsigned int irq, cpumask_t mask)
@@ -2611,7 +2673,7 @@ int arch_setup_ht_irq(unsigned int irq, struct pci_dev *dev)
 
 	vector = assign_irq_vector(irq);
 	if (vector >= 0) {
-		u32 low, high;
+		struct ht_irq_msg msg;
 		unsigned dest;
 		cpumask_t tmp;
 
@@ -2619,9 +2681,10 @@ int arch_setup_ht_irq(unsigned int irq, struct pci_dev *dev)
 		cpu_set(vector >> 8, tmp);
 		dest = cpu_mask_to_apicid(tmp);
 
-		high = 	HT_IRQ_HIGH_DEST_ID(dest);
+		msg.address_hi = HT_IRQ_HIGH_DEST_ID(dest);
 
-		low =	HT_IRQ_LOW_BASE |
+		msg.address_lo =
+			HT_IRQ_LOW_BASE |
 			HT_IRQ_LOW_DEST_ID(dest) |
 			HT_IRQ_LOW_VECTOR(vector) |
 			((INT_DEST_MODE == 0) ?
@@ -2633,10 +2696,10 @@ int arch_setup_ht_irq(unsigned int irq, struct pci_dev *dev)
 				HT_IRQ_LOW_MT_ARBITRATED) |
 			HT_IRQ_LOW_IRQ_MASKED;
 
-		write_ht_irq_low(irq, low);
-		write_ht_irq_high(irq, high);
+		write_ht_irq_msg(irq, &msg);
 
-		set_irq_chip_and_handler(irq, &ht_irq_chip, handle_edge_irq);
+		set_irq_chip_and_handler_name(irq, &ht_irq_chip,
+					      handle_edge_irq, "edge");
 	}
 	return vector;
 }
diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c
index 8cfc7dbec7b..3201d421090 100644
--- a/arch/i386/kernel/irq.c
+++ b/arch/i386/kernel/irq.c
@@ -258,7 +258,7 @@ int show_interrupts(struct seq_file *p, void *v)
 			seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
 #endif
 		seq_printf(p, " %8s", irq_desc[i].chip->name);
-		seq_printf(p, "-%s", handle_irq_name(irq_desc[i].handle_irq));
+		seq_printf(p, "-%-8s", irq_desc[i].name);
 		seq_printf(p, "  %s", action->name);
 
 		for (action=action->next; action; action = action->next)
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index d98e44b16fe..fc79e1e859c 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -361,8 +361,11 @@ no_kprobe:
 	asm volatile ( ".global kretprobe_trampoline\n"
 			"kretprobe_trampoline: \n"
 			"	pushf\n"
-			/* skip cs, eip, orig_eax, es, ds */
-			"	subl $20, %esp\n"
+			/* skip cs, eip, orig_eax */
+			"	subl $12, %esp\n"
+			"	pushl %gs\n"
+			"	pushl %ds\n"
+			"	pushl %es\n"
 			"	pushl %eax\n"
 			"	pushl %ebp\n"
 			"	pushl %edi\n"
@@ -373,10 +376,10 @@ no_kprobe:
 			"	movl %esp, %eax\n"
 			"	call trampoline_handler\n"
 			/* move eflags to cs */
-			"	movl 48(%esp), %edx\n"
-			"	movl %edx, 44(%esp)\n"
+			"	movl 52(%esp), %edx\n"
+			"	movl %edx, 48(%esp)\n"
 			/* save true return address on eflags */
-			"	movl %eax, 48(%esp)\n"
+			"	movl %eax, 52(%esp)\n"
 			"	popl %ebx\n"
 			"	popl %ecx\n"
 			"	popl %edx\n"
@@ -384,8 +387,8 @@ no_kprobe:
 			"	popl %edi\n"
 			"	popl %ebp\n"
 			"	popl %eax\n"
-			/* skip eip, orig_eax, es, ds */
-			"	addl $16, %esp\n"
+			/* skip eip, orig_eax, es, ds, gs */
+			"	addl $20, %esp\n"
 			"	popf\n"
 			"	ret\n");
 }
@@ -404,6 +407,10 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
 	INIT_HLIST_HEAD(&empty_rp);
 	spin_lock_irqsave(&kretprobe_lock, flags);
 	head = kretprobe_inst_table_head(current);
+	/* fixup registers */
+	regs->xcs = __KERNEL_CS;
+	regs->eip = trampoline_address;
+	regs->orig_eax = 0xffffffff;
 
 	/*
 	 * It is possible to have multiple instances associated with a given
@@ -425,6 +432,7 @@ fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
 
 		if (ri->rp && ri->rp->handler){
 			__get_cpu_var(current_kprobe) = &ri->rp->kp;
+			get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
 			ri->rp->handler(ri, regs);
 			__get_cpu_var(current_kprobe) = NULL;
 		}
diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c
index c4d0291b519..23f5984d065 100644
--- a/arch/i386/kernel/microcode.c
+++ b/arch/i386/kernel/microcode.c
@@ -577,7 +577,7 @@ static void microcode_init_cpu(int cpu)
 	set_cpus_allowed(current, cpumask_of_cpu(cpu));
 	mutex_lock(&microcode_mutex);
 	collect_cpu_info(cpu);
-	if (uci->valid)
+	if (uci->valid && system_state == SYSTEM_RUNNING)
 		cpu_request_microcode(cpu);
 	mutex_unlock(&microcode_mutex);
 	set_cpus_allowed(current, old);
diff --git a/arch/i386/kernel/msr.c b/arch/i386/kernel/msr.c
index d535cdbbfd2..a773f776c9e 100644
--- a/arch/i386/kernel/msr.c
+++ b/arch/i386/kernel/msr.c
@@ -239,14 +239,14 @@ static struct file_operations msr_fops = {
 	.open = msr_open,
 };
 
-static int msr_class_device_create(int i)
+static int msr_device_create(int i)
 {
 	int err = 0;
-	struct class_device *class_err;
+	struct device *dev;
 
-	class_err = class_device_create(msr_class, NULL, MKDEV(MSR_MAJOR, i), NULL, "msr%d",i);
-	if (IS_ERR(class_err)) 
-		err = PTR_ERR(class_err);
+	dev = device_create(msr_class, NULL, MKDEV(MSR_MAJOR, i), "msr%d",i);
+	if (IS_ERR(dev))
+		err = PTR_ERR(dev);
 	return err;
 }
 
@@ -258,10 +258,10 @@ static int msr_class_cpu_callback(struct notifier_block *nfb,
 
 	switch (action) {
 	case CPU_ONLINE:
-		msr_class_device_create(cpu);
+		msr_device_create(cpu);
 		break;
 	case CPU_DEAD:
-		class_device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
+		device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
 		break;
 	}
 	return NOTIFY_OK;
@@ -290,7 +290,7 @@ static int __init msr_init(void)
 		goto out_chrdev;
 	}
 	for_each_online_cpu(i) {
-		err = msr_class_device_create(i);
+		err = msr_device_create(i);
 		if (err != 0)
 			goto out_class;
 	}
@@ -302,7 +302,7 @@ static int __init msr_init(void)
 out_class:
 	i = 0;
 	for_each_online_cpu(i)
-		class_device_destroy(msr_class, MKDEV(MSR_MAJOR, i));
+		device_destroy(msr_class, MKDEV(MSR_MAJOR, i));
 	class_destroy(msr_class);
 out_chrdev:
 	unregister_chrdev(MSR_MAJOR, "cpu/msr");
@@ -314,7 +314,7 @@ static void __exit msr_exit(void)
 {
 	int cpu = 0;
 	for_each_online_cpu(cpu)
-		class_device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
+		device_destroy(msr_class, MKDEV(MSR_MAJOR, cpu));
 	class_destroy(msr_class);
 	unregister_chrdev(MSR_MAJOR, "cpu/msr");
 	unregister_hotcpu_notifier(&msr_class_cpu_notifier);
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 3e8e3adb048..eaafe233a5d 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -219,11 +219,11 @@ static int __init check_nmi_watchdog(void)
 	int cpu;
 
 	/* Enable NMI watchdog for newer systems.
-           Actually it should be safe for most systems before 2004 too except
-	   for some IBM systems that corrupt registers when NMI happens
-	   during SMM. Unfortunately we don't have more exact information
- 	   on these and use this coarse check. */
-	if (nmi_watchdog == NMI_DEFAULT && dmi_get_year(DMI_BIOS_DATE) >= 2004)
+	   Probably safe on most older systems too, but let's be careful.
+	   IBM ThinkPads use INT10 inside SMM and that allows early NMI inside SMM
+	   which hangs the system. Disable watchdog for all thinkpads */
+	if (nmi_watchdog == NMI_DEFAULT && dmi_get_year(DMI_BIOS_DATE) >= 2004 &&
+		!dmi_name_in_vendors("ThinkPad"))
 		nmi_watchdog = NMI_LOCAL_APIC;
 
 	if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DEFAULT))
diff --git a/arch/i386/kernel/pci-dma.c b/arch/i386/kernel/pci-dma.c
index 25fe6685393..5c8c6ef1fc5 100644
--- a/arch/i386/kernel/pci-dma.c
+++ b/arch/i386/kernel/pci-dma.c
@@ -75,7 +75,7 @@ EXPORT_SYMBOL(dma_free_coherent);
 int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
 				dma_addr_t device_addr, size_t size, int flags)
 {
-	void __iomem *mem_base;
+	void __iomem *mem_base = NULL;
 	int pages = size >> PAGE_SHIFT;
 	int bitmap_size = (pages + 31)/32;
 
@@ -114,6 +114,8 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
  free1_out:
 	kfree(dev->dma_mem->bitmap);
  out:
+	if (mem_base)
+		iounmap(mem_base);
 	return 0;
 }
 EXPORT_SYMBOL(dma_declare_coherent_memory);
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 57d375900af..dd53c58f64f 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -205,7 +205,7 @@ void cpu_idle(void)
 void cpu_idle_wait(void)
 {
 	unsigned int cpu, this_cpu = get_cpu();
-	cpumask_t map;
+	cpumask_t map, tmp = current->cpus_allowed;
 
 	set_cpus_allowed(current, cpumask_of_cpu(this_cpu));
 	put_cpu();
@@ -227,6 +227,8 @@ void cpu_idle_wait(void)
 		}
 		cpus_and(map, map, cpu_online_map);
 	} while (!cpus_empty(map));
+
+	set_cpus_allowed(current, tmp);
 }
 EXPORT_SYMBOL_GPL(cpu_idle_wait);
 
@@ -336,7 +338,6 @@ extern void kernel_thread_helper(void);
 int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 {
 	struct pt_regs regs;
-	int err;
 
 	memset(&regs, 0, sizeof(regs));
 
@@ -351,10 +352,7 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 	regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2;
 
 	/* Ok, create the new process.. */
-	err = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
-	if (err == 0) /* terminate kernel stack */
-		task_pt_regs(current)->eip = 0;
-	return err;
+	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
 }
 EXPORT_SYMBOL(kernel_thread);
 
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 519e63c3c13..141041dde74 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -846,7 +846,7 @@ efi_find_max_pfn(unsigned long start, unsigned long end, void *arg)
 static int __init
 efi_memory_present_wrapper(unsigned long start, unsigned long end, void *arg)
 {
-	memory_present(0, start, end);
+	memory_present(0, PFN_UP(start), PFN_DOWN(end));
 	return 0;
 }
 
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 00489b706d2..fe9c5e8e7e6 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -129,15 +129,19 @@ static inline unsigned long print_context_stack(struct thread_info *tinfo,
 
 #ifdef	CONFIG_FRAME_POINTER
 	while (valid_stack_ptr(tinfo, (void *)ebp)) {
+		unsigned long new_ebp;
 		addr = *(unsigned long *)(ebp + 4);
 		ops->address(data, addr);
 		/*
 		 * break out of recursive entries (such as
-		 * end_of_stack_stop_unwind_function):
+		 * end_of_stack_stop_unwind_function). Also,
+		 * we can never allow a frame pointer to
+		 * move downwards!
 	 	 */
-		if (ebp == *(unsigned long *)ebp)
+	 	new_ebp = *(unsigned long *)ebp;
+		if (new_ebp <= ebp)
 			break;
-		ebp = *(unsigned long *)ebp;
+		ebp = new_ebp;
 	}
 #else
 	while (valid_stack_ptr(tinfo, stack)) {
diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c
index b8fa0a8b2e4..fbc95828cd7 100644
--- a/arch/i386/kernel/tsc.c
+++ b/arch/i386/kernel/tsc.c
@@ -349,8 +349,8 @@ static int tsc_update_callback(void)
 	int change = 0;
 
 	/* check to see if we should switch to the safe clocksource: */
-	if (clocksource_tsc.rating != 50 && check_tsc_unstable()) {
-		clocksource_tsc.rating = 50;
+	if (clocksource_tsc.rating != 0 && check_tsc_unstable()) {
+		clocksource_tsc.rating = 0;
 		clocksource_reselect();
 		change = 1;
 	}
@@ -461,7 +461,7 @@ static int __init init_tsc_clocksource(void)
 							clocksource_tsc.shift);
 		/* lower the rating if we already know its unstable: */
 		if (check_tsc_unstable())
-			clocksource_tsc.rating = 50;
+			clocksource_tsc.rating = 0;
 
 		init_timer(&verify_tsc_freq_timer);
 		verify_tsc_freq_timer.function = verify_tsc_freq;
diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S
index 1e7ac1c44dd..c6f84a0322b 100644
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -51,6 +51,7 @@ SECTIONS
   __tracedata_end = .;
 
   /* writeable */
+  . = ALIGN(4096);
   .data : AT(ADDR(.data) - LOAD_OFFSET) {	/* Data */
 	*(.data)
 	CONSTRUCTORS
@@ -126,13 +127,7 @@ SECTIONS
   __setup_end = .;
   __initcall_start = .;
   .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) {
-	*(.initcall1.init) 
-	*(.initcall2.init) 
-	*(.initcall3.init) 
-	*(.initcall4.init) 
-	*(.initcall5.init) 
-	*(.initcall6.init) 
-	*(.initcall7.init)
+	INITCALLS
   }
   __initcall_end = .;
   __con_initcall_start = .;
diff --git a/arch/i386/lib/usercopy.c b/arch/i386/lib/usercopy.c
index 258df6b4d7d..d22cfc9d656 100644
--- a/arch/i386/lib/usercopy.c
+++ b/arch/i386/lib/usercopy.c
@@ -9,6 +9,7 @@
 #include <linux/highmem.h>
 #include <linux/blkdev.h>
 #include <linux/module.h>
+#include <linux/backing-dev.h>
 #include <asm/uaccess.h>
 #include <asm/mmx.h>
 
@@ -741,7 +742,7 @@ survive:
 
 			if (retval == -ENOMEM && is_init(current)) {
 				up_read(&current->mm->mmap_sem);
-				blk_congestion_wait(WRITE, HZ/50);
+				congestion_wait(WRITE, HZ/50);
 				goto survive;
 			}
 
diff --git a/arch/i386/mach-visws/visws_apic.c b/arch/i386/mach-visws/visws_apic.c
index 07097ed4889..38c2b13124d 100644
--- a/arch/i386/mach-visws/visws_apic.c
+++ b/arch/i386/mach-visws/visws_apic.c
@@ -122,7 +122,7 @@ static void end_cobalt_irq(unsigned int irq)
 	spin_unlock_irqrestore(&cobalt_lock, flags);
 }
 
-static struct hw_interrupt_type cobalt_irq_type = {
+static struct irq_chip cobalt_irq_type = {
 	.typename =	"Cobalt-APIC",
 	.startup =	startup_cobalt_irq,
 	.shutdown =	disable_cobalt_irq,
@@ -159,7 +159,7 @@ static void end_piix4_master_irq(unsigned int irq)
 	spin_unlock_irqrestore(&cobalt_lock, flags);
 }
 
-static struct hw_interrupt_type piix4_master_irq_type = {
+static struct irq_chip piix4_master_irq_type = {
 	.typename =	"PIIX4-master",
 	.startup =	startup_piix4_master_irq,
 	.ack =		ack_cobalt_irq,
@@ -167,9 +167,8 @@ static struct hw_interrupt_type piix4_master_irq_type = {
 };
 
 
-static struct hw_interrupt_type piix4_virtual_irq_type = {
+static struct irq_chip piix4_virtual_irq_type = {
 	.typename =	"PIIX4-virtual",
-	.startup =	startup_8259A_irq,
 	.shutdown =	disable_8259A_irq,
 	.enable =	enable_8259A_irq,
 	.disable =	disable_8259A_irq,
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index 68bce194e68..53ca6e89798 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -20,6 +20,7 @@
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
 				PCI_PROBE_MMCONF;
 
+static int pci_bf_sort;
 int pci_routeirq;
 int pcibios_last_bus = -1;
 unsigned long pirq_table_addr;
@@ -118,6 +119,20 @@ void __devinit  pcibios_fixup_bus(struct pci_bus *b)
 }
 
 /*
+ * Only use DMI information to set this if nothing was passed
+ * on the kernel command line (which was parsed earlier).
+ */
+
+static int __devinit set_bf_sort(struct dmi_system_id *d)
+{
+	if (pci_bf_sort == pci_bf_sort_default) {
+		pci_bf_sort = pci_dmi_bf;
+		printk(KERN_INFO "PCI: %s detected, enabling pci=bfsort.\n", d->ident);
+	}
+	return 0;
+}
+
+/*
  * Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus)
  */
 #ifdef __i386__
@@ -130,11 +145,11 @@ static int __devinit assign_all_busses(struct dmi_system_id *d)
 }
 #endif
 
+static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
+#ifdef __i386__
 /*
  * Laptops which need pci=assign-busses to see Cardbus cards
  */
-static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
-#ifdef __i386__
 	{
 		.callback = assign_all_busses,
 		.ident = "Samsung X20 Laptop",
@@ -144,6 +159,38 @@ static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
 		},
 	},
 #endif		/* __i386__ */
+	{
+		.callback = set_bf_sort,
+		.ident = "Dell PowerEdge 1950",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1950"),
+		},
+	},
+	{
+		.callback = set_bf_sort,
+		.ident = "Dell PowerEdge 1955",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1955"),
+		},
+	},
+	{
+		.callback = set_bf_sort,
+		.ident = "Dell PowerEdge 2900",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2900"),
+		},
+	},
+	{
+		.callback = set_bf_sort,
+		.ident = "Dell PowerEdge 2950",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2950"),
+		},
+	},
 	{}
 };
 
@@ -189,6 +236,8 @@ static int __init pcibios_init(void)
 
 	pcibios_resource_survey();
 
+	if (pci_bf_sort >= pci_force_bf)
+		pci_sort_breadthfirst();
 #ifdef CONFIG_PCI_BIOS
 	if ((pci_probe & PCI_BIOS_SORT) && !(pci_probe & PCI_NO_SORT))
 		pcibios_sort();
@@ -203,6 +252,12 @@ char * __devinit  pcibios_setup(char *str)
 	if (!strcmp(str, "off")) {
 		pci_probe = 0;
 		return NULL;
+	} else if (!strcmp(str, "bfsort")) {
+		pci_bf_sort = pci_force_bf;
+		return NULL;
+	} else if (!strcmp(str, "nobfsort")) {
+		pci_bf_sort = pci_force_nobf;
+		return NULL;
 	}
 #ifdef CONFIG_PCI_BIOS
 	else if (!strcmp(str, "bios")) {
@@ -288,7 +343,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 
 void pcibios_disable_device (struct pci_dev *dev)
 {
-	pcibios_disable_resources(dev);
 	if (pcibios_disable_irq)
 		pcibios_disable_irq(dev);
 }
diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c
index b60d7e8689e..cde1170b01a 100644
--- a/arch/i386/pci/fixup.c
+++ b/arch/i386/pci/fixup.c
@@ -74,52 +74,6 @@ static void __devinit  pci_fixup_ncr53c810(struct pci_dev *d)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, pci_fixup_ncr53c810);
 
-static void __devinit pci_fixup_ide_bases(struct pci_dev *d)
-{
-	int i;
-
-	/*
-	 * PCI IDE controllers use non-standard I/O port decoding, respect it.
-	 */
-	if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
-		return;
-	DBG("PCI: IDE base address fixup for %s\n", pci_name(d));
-	for(i=0; i<4; i++) {
-		struct resource *r = &d->resource[i];
-		if ((r->start & ~0x80) == 0x374) {
-			r->start |= 2;
-			r->end = r->start;
-		}
-	}
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
-
-static void __devinit  pci_fixup_ide_trash(struct pci_dev *d)
-{
-	int i;
-
-	/*
-	 * Runs the fixup only for the first IDE controller
-	 * (Shai Fultheim - shai@ftcon.com)
-	 */
-	static int called = 0;
-	if (called)
-		return;
-	called = 1;
-
-	/*
-	 * There exist PCI IDE controllers which have utter garbage
-	 * in first four base registers. Ignore that.
-	 */
-	DBG("PCI: IDE base address trash cleared for %s\n", pci_name(d));
-	for(i=0; i<4; i++)
-		d->resource[i].start = d->resource[i].end = d->resource[i].flags = 0;
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_11, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_9, pci_fixup_ide_trash);
-
 static void __devinit  pci_fixup_latency(struct pci_dev *d)
 {
 	/*
@@ -348,8 +302,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PC1,	pcie_r
  * From information provided by "Jon Smirl" <jonsmirl@gmail.com>
  *
  * The standard boot ROM sequence for an x86 machine uses the BIOS
- * to select an initial video card for boot display. This boot video 
- * card will have it's BIOS copied to C0000 in system RAM. 
+ * to select an initial video card for boot display. This boot video
+ * card will have it's BIOS copied to C0000 in system RAM.
  * IORESOURCE_ROM_SHADOW is used to associate the boot video
  * card with this copy. On laptops this copy has to be used since
  * the main ROM may be compressed or combined with another image.
@@ -371,7 +325,17 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev)
 	bus = pdev->bus;
 	while (bus) {
 		bridge = bus->self;
-		if (bridge) {
+
+		/*
+		 * From information provided by
+		 * "David Miller" <davem@davemloft.net>
+		 * The bridge control register is valid for PCI header
+		 * type BRIDGE, or CARDBUS. Host to PCI controllers use
+		 * PCI header type NORMAL.
+		 */
+		if (bridge
+		    &&((bridge->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+		       ||(bridge->hdr_type == PCI_HEADER_TYPE_CARDBUS))) {
 			pci_read_config_word(bridge, PCI_BRIDGE_CONTROL,
 						&config);
 			if (!(config & PCI_BRIDGE_CTL_VGA))
diff --git a/arch/i386/pci/i386.c b/arch/i386/pci/i386.c
index 10154a2cac6..43005f04442 100644
--- a/arch/i386/pci/i386.c
+++ b/arch/i386/pci/i386.c
@@ -104,16 +104,24 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
 	/* Depth-First Search on bus tree */
 	list_for_each_entry(bus, bus_list, node) {
 		if ((dev = bus->self)) {
-			for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) {
+			for (idx = PCI_BRIDGE_RESOURCES;
+			    idx < PCI_NUM_RESOURCES; idx++) {
 				r = &dev->resource[idx];
 				if (!r->flags)
 					continue;
 				pr = pci_find_parent_resource(dev, r);
-				if (!r->start || !pr || request_resource(pr, r) < 0) {
-					printk(KERN_ERR "PCI: Cannot allocate resource region %d of bridge %s\n", idx, pci_name(dev));
-					/* Something is wrong with the region.
-					   Invalidate the resource to prevent child
-					   resource allocations in this range. */
+				if (!r->start || !pr ||
+				    request_resource(pr, r) < 0) {
+					printk(KERN_ERR "PCI: Cannot allocate "
+						"resource region %d "
+						"of bridge %s\n",
+						idx, pci_name(dev));
+					/*
+					 * Something is wrong with the region.
+					 * Invalidate the resource to prevent
+					 * child resource allocations in this
+					 * range.
+					 */
 					r->flags = 0;
 				}
 			}
@@ -131,7 +139,7 @@ static void __init pcibios_allocate_resources(int pass)
 
 	for_each_pci_dev(dev) {
 		pci_read_config_word(dev, PCI_COMMAND, &command);
-		for(idx = 0; idx < 6; idx++) {
+		for (idx = 0; idx < PCI_ROM_RESOURCE; idx++) {
 			r = &dev->resource[idx];
 			if (r->parent)		/* Already allocated */
 				continue;
@@ -142,11 +150,15 @@ static void __init pcibios_allocate_resources(int pass)
 			else
 				disabled = !(command & PCI_COMMAND_MEMORY);
 			if (pass == disabled) {
-				DBG("PCI: Resource %08lx-%08lx (f=%lx, d=%d, p=%d)\n",
+				DBG("PCI: Resource %08lx-%08lx "
+				    "(f=%lx, d=%d, p=%d)\n",
 				    r->start, r->end, r->flags, disabled, pass);
 				pr = pci_find_parent_resource(dev, r);
 				if (!pr || request_resource(pr, r) < 0) {
-					printk(KERN_ERR "PCI: Cannot allocate resource region %d of device %s\n", idx, pci_name(dev));
+					printk(KERN_ERR "PCI: Cannot allocate "
+						"resource region %d "
+						"of device %s\n",
+						idx, pci_name(dev));
 					/* We'll assign a new address later */
 					r->end -= r->start;
 					r->start = 0;
@@ -156,12 +168,16 @@ static void __init pcibios_allocate_resources(int pass)
 		if (!pass) {
 			r = &dev->resource[PCI_ROM_RESOURCE];
 			if (r->flags & IORESOURCE_ROM_ENABLE) {
-				/* Turn the ROM off, leave the resource region, but keep it unregistered. */
+				/* Turn the ROM off, leave the resource region,
+				 * but keep it unregistered. */
 				u32 reg;
-				DBG("PCI: Switching off ROM of %s\n", pci_name(dev));
+				DBG("PCI: Switching off ROM of %s\n",
+					pci_name(dev));
 				r->flags &= ~IORESOURCE_ROM_ENABLE;
-				pci_read_config_dword(dev, dev->rom_base_reg, &reg);
-				pci_write_config_dword(dev, dev->rom_base_reg, reg & ~PCI_ROM_ADDRESS_ENABLE);
+				pci_read_config_dword(dev,
+						dev->rom_base_reg, &reg);
+				pci_write_config_dword(dev, dev->rom_base_reg,
+						reg & ~PCI_ROM_ADDRESS_ENABLE);
 			}
 		}
 	}
@@ -173,9 +189,11 @@ static int __init pcibios_assign_resources(void)
 	struct resource *r, *pr;
 
 	if (!(pci_probe & PCI_ASSIGN_ROMS)) {
-		/* Try to use BIOS settings for ROMs, otherwise let
-		   pci_assign_unassigned_resources() allocate the new
-		   addresses. */
+		/*
+		 * Try to use BIOS settings for ROMs, otherwise let
+		 * pci_assign_unassigned_resources() allocate the new
+		 * addresses.
+		 */
 		for_each_pci_dev(dev) {
 			r = &dev->resource[PCI_ROM_RESOURCE];
 			if (!r->flags || !r->start)
@@ -215,9 +233,9 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask)
 
 	pci_read_config_word(dev, PCI_COMMAND, &cmd);
 	old_cmd = cmd;
-	for(idx = 0; idx < PCI_NUM_RESOURCES; idx++) {
+	for (idx = 0; idx < PCI_NUM_RESOURCES; idx++) {
 		/* Only set up the requested stuff */
-		if (!(mask & (1<<idx)))
+		if (!(mask & (1 << idx)))
 			continue;
 
 		r = &dev->resource[idx];
@@ -227,7 +245,9 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask)
 				(!(r->flags & IORESOURCE_ROM_ENABLE)))
 			continue;
 		if (!r->start && r->end) {
-			printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
+			printk(KERN_ERR "PCI: Device %s not available "
+				"because of resource collisions\n",
+				pci_name(dev));
 			return -EINVAL;
 		}
 		if (r->flags & IORESOURCE_IO)
@@ -236,21 +256,13 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask)
 			cmd |= PCI_COMMAND_MEMORY;
 	}
 	if (cmd != old_cmd) {
-		printk("PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
+		printk("PCI: Enabling device %s (%04x -> %04x)\n",
+			pci_name(dev), old_cmd, cmd);
 		pci_write_config_word(dev, PCI_COMMAND, cmd);
 	}
 	return 0;
 }
 
-void pcibios_disable_resources(struct pci_dev *dev)
-{
-	u16 cmd;
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-	cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
-	pci_write_config_word(dev, PCI_COMMAND, cmd);
-}
-
 /*
  *  If we set up a device for bus mastering, we need to check the latency
  *  timer as certain crappy BIOSes forget to set it properly.
@@ -267,7 +279,8 @@ void pcibios_set_master(struct pci_dev *dev)
 		lat = pcibios_max_latency;
 	else
 		return;
-	printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat);
+	printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n",
+		pci_name(dev), lat);
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
 }
 
diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c
index dbc4aae9195..e65551cd821 100644
--- a/arch/i386/pci/irq.c
+++ b/arch/i386/pci/irq.c
@@ -255,13 +255,13 @@ static int pirq_via_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
  */
 static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
 {
-	static const unsigned int pirqmap[4] = { 3, 2, 5, 1 };
+	static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
 	return read_config_nybble(router, 0x55, pirqmap[pirq-1]);
 }
 
 static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
 {
-	static const unsigned int pirqmap[4] = { 3, 2, 5, 1 };
+	static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
 	write_config_nybble(router, 0x55, pirqmap[pirq-1], irq);
 	return 1;
 }
@@ -543,6 +543,12 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
 		case PCI_DEVICE_ID_INTEL_ICH8_2:
 		case PCI_DEVICE_ID_INTEL_ICH8_3:
 		case PCI_DEVICE_ID_INTEL_ICH8_4:
+		case PCI_DEVICE_ID_INTEL_ICH9_0:
+		case PCI_DEVICE_ID_INTEL_ICH9_1:
+		case PCI_DEVICE_ID_INTEL_ICH9_2:
+		case PCI_DEVICE_ID_INTEL_ICH9_3:
+		case PCI_DEVICE_ID_INTEL_ICH9_4:
+		case PCI_DEVICE_ID_INTEL_ICH9_5:
 			r->name = "PIIX/ICH";
 			r->get = pirq_piix_get;
 			r->set = pirq_piix_set;
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index d0c3da3aa2a..c6b6d9bbc45 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -154,38 +154,6 @@ static struct pci_raw_ops pci_mmcfg = {
 	.write =	pci_mmcfg_write,
 };
 
-
-static __init void pci_mmcfg_insert_resources(void)
-{
-#define PCI_MMCFG_RESOURCE_NAME_LEN 19
-	int i;
-	struct resource *res;
-	char *names;
-	unsigned num_buses;
-
-	res = kcalloc(PCI_MMCFG_RESOURCE_NAME_LEN + sizeof(*res),
-			pci_mmcfg_config_num, GFP_KERNEL);
-
-	if (!res) {
-		printk(KERN_ERR "PCI: Unable to allocate MMCONFIG resources\n");
-		return;
-	}
-
-	names = (void *)&res[pci_mmcfg_config_num];
-	for (i = 0; i < pci_mmcfg_config_num; i++, res++) {
-		num_buses = pci_mmcfg_config[i].end_bus_number -
-		    pci_mmcfg_config[i].start_bus_number + 1;
-		res->name = names;
-		snprintf(names, PCI_MMCFG_RESOURCE_NAME_LEN, "PCI MMCONFIG %u",
-			pci_mmcfg_config[i].pci_segment_group_number);
-		res->start = pci_mmcfg_config[i].base_address;
-		res->end = res->start + (num_buses << 20) - 1;
-		res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-		insert_resource(&iomem_resource, res);
-		names += PCI_MMCFG_RESOURCE_NAME_LEN;
-	}
-}
-
 /* K8 systems have some devices (typically in the builtin northbridge)
    that are only accessible using type1
    Normally this can be expressed in the MCFG by not listing them
@@ -222,8 +190,6 @@ static __init void unreachable_devices(void)
 	}
 }
 
-
-
 void __init pci_mmcfg_init(int type)
 {
 	if ((pci_probe & PCI_PROBE_MMCONF) == 0)
@@ -251,5 +217,4 @@ void __init pci_mmcfg_init(int type)
 	pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
 
 	unreachable_devices();
-	pci_mmcfg_insert_resources();
 }
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h
index 1814f74569c..a0a25180b61 100644
--- a/arch/i386/pci/pci.h
+++ b/arch/i386/pci/pci.h
@@ -30,13 +30,19 @@
 extern unsigned int pci_probe;
 extern unsigned long pirq_table_addr;
 
+enum pci_bf_sort_state {
+	pci_bf_sort_default,
+	pci_force_nobf,
+	pci_force_bf,
+	pci_dmi_bf,
+};
+
 /* pci-i386.c */
 
 extern unsigned int pcibios_max_latency;
 
 void pcibios_resource_survey(void);
 int pcibios_enable_resources(struct pci_dev *, int);
-void pcibios_disable_resources(struct pci_dev *);
 
 /* pci-pc.c */