Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6

* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (94 commits)
  [PATCH] x86-64: Remove mk_pte_phys()
  [PATCH] i386: Fix broken CONFIG_COMPAT_VDSO on i386
  [PATCH] i386: fix 32-bit ioctls on x64_32
  [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64
  [PATCH] i386: Remove extern declaration from mm/discontig.c, put in header.
  [PATCH] i386: Rename cpu_gdt_descr and remove extern declaration from smpboot.c
  [PATCH] i386: Move mce_disabled to asm/mce.h
  [PATCH] i386: paravirt unhandled fallthrough
  [PATCH] x86_64: Wire up compat epoll_pwait
  [PATCH] x86: Don't require the vDSO for handling a.out signals
  [PATCH] i386: Fix Cyrix MediaGX detection
  [PATCH] i386: Fix warning in cpu initialization
  [PATCH] i386: Fix warning in microcode.c
  [PATCH] x86: Enable NMI watchdog for AMD Family 0x10 CPUs
  [PATCH] x86: Add new CPUID bits for AMD Family 10 CPUs in /proc/cpuinfo
  [PATCH] i386: Remove fastcall in paravirt.[ch]
  [PATCH] x86-64: Fix wrong gcc check in bitops.h
  [PATCH] x86-64: survive having no irq mapping for a vector
  [PATCH] i386: geode configuration fixes
  [PATCH] i386: add option to show more code in oops reports
  ...

30 files changed, 761 insertions, 416 deletions

diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 02dd39457bc..7982cbc3bc9 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -152,18 +152,18 @@ config MPSC
 	  Optimize for Intel Pentium 4 and older Nocona/Dempsey Xeon CPUs
 	  with Intel Extended Memory 64 Technology(EM64T). For details see
 	  <http://www.intel.com/technology/64bitextensions/>.
-	  Note the the latest Xeons (Xeon 51xx and 53xx) are not based on the
-          Netburst core and shouldn't use this option. You can distingush them
+	  Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
+          Netburst core and shouldn't use this option. You can distinguish them
 	  using the cpu family field
-	  in /proc/cpuinfo. Family 15 is a older Xeon, Family 6 a newer one
-	  (this rule only applies to system that support EM64T)
+	  in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one
+	  (this rule only applies to systems that support EM64T)
 
 config MCORE2
 	bool "Intel Core2 / newer Xeon"
 	help
 	  Optimize for Intel Core2 and newer Xeons (51xx)
-	  You can distingush the newer Xeons from the older ones using
-	  the cpu family field in /proc/cpuinfo. 15 is a older Xeon
+	  You can distinguish the newer Xeons from the older ones using
+	  the cpu family field in /proc/cpuinfo. 15 is an older Xeon
 	  (use CONFIG_MPSC then), 6 is a newer one. This rule only
 	  applies to CPUs that support EM64T.
 
@@ -458,8 +458,8 @@ config IOMMU
 	  on systems with more than 3GB. This is usually needed for USB,
 	  sound, many IDE/SATA chipsets and some other devices.
 	  Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
-	  based IOMMU and a software bounce buffer based IOMMU used on Intel
-	  systems and as fallback.
+	  based hardware IOMMU and a software bounce buffer based IOMMU used
+	  on Intel systems and as fallback.
 	  The code is only active when needed (enough memory and limited
 	  device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
 	  too.
@@ -496,6 +496,12 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT
 # need this always selected by IOMMU for the VIA workaround
 config SWIOTLB
 	bool
+	help
+	  Support for software bounce buffers used on x86-64 systems
+	  which don't have a hardware IOMMU (e.g. the current generation
+	  of Intel's x86-64 CPUs). Using this PCI devices which can only
+	  access 32-bits of memory can be used on systems with more than
+	  3 GB of memory. If unsure, say Y.
 
 config X86_MCE
 	bool "Machine check support" if EMBEDDED
diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig
index 69584c29530..293a4a4c609 100644
--- a/arch/x86_64/defconfig
+++ b/arch/x86_64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20-rc3
-# Fri Jan  5 11:54:41 2007
+# Linux kernel version: 2.6.20-git8
+# Tue Feb 13 11:25:16 2007
 #
 CONFIG_X86_64=y
 CONFIG_64BIT=y
@@ -11,6 +11,7 @@ CONFIG_LOCKDEP_SUPPORT=y
 CONFIG_STACKTRACE_SUPPORT=y
 CONFIG_SEMAPHORE_SLEEPERS=y
 CONFIG_MMU=y
+CONFIG_ZONE_DMA=y
 CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
@@ -153,6 +154,7 @@ CONFIG_NEED_MULTIPLE_NODES=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_MIGRATION=y
 CONFIG_RESOURCES_64BIT=y
+CONFIG_ZONE_DMA_FLAG=1
 CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
 CONFIG_OUT_OF_LINE_PFN_TO_PAGE=y
 CONFIG_NR_CPUS=32
@@ -201,13 +203,14 @@ CONFIG_ACPI=y
 CONFIG_ACPI_SLEEP=y
 CONFIG_ACPI_SLEEP_PROC_FS=y
 CONFIG_ACPI_SLEEP_PROC_SLEEP=y
+CONFIG_ACPI_PROCFS=y
 CONFIG_ACPI_AC=y
 CONFIG_ACPI_BATTERY=y
 CONFIG_ACPI_BUTTON=y
-# CONFIG_ACPI_VIDEO is not set
 # CONFIG_ACPI_HOTKEY is not set
 CONFIG_ACPI_FAN=y
 # CONFIG_ACPI_DOCK is not set
+# CONFIG_ACPI_BAY is not set
 CONFIG_ACPI_PROCESSOR=y
 CONFIG_ACPI_HOTPLUG_CPU=y
 CONFIG_ACPI_THERMAL=y
@@ -263,7 +266,6 @@ CONFIG_PCI_MMCONFIG=y
 CONFIG_PCIEPORTBUS=y
 CONFIG_PCIEAER=y
 CONFIG_PCI_MSI=y
-# CONFIG_PCI_MULTITHREAD_PROBE is not set
 # CONFIG_PCI_DEBUG is not set
 # CONFIG_HT_IRQ is not set
 
@@ -398,6 +400,7 @@ CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 CONFIG_FW_LOADER=y
 # CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
 # CONFIG_SYS_HYPERVISOR is not set
 
 #
@@ -466,6 +469,7 @@ CONFIG_BLK_DEV_IDECD=y
 # CONFIG_BLK_DEV_IDETAPE is not set
 # CONFIG_BLK_DEV_IDEFLOPPY is not set
 # CONFIG_BLK_DEV_IDESCSI is not set
+CONFIG_BLK_DEV_IDEACPI=y
 # CONFIG_IDE_TASK_IOCTL is not set
 
 #
@@ -497,6 +501,7 @@ CONFIG_BLK_DEV_ATIIXP=y
 # CONFIG_BLK_DEV_JMICRON is not set
 # CONFIG_BLK_DEV_SC1200 is not set
 CONFIG_BLK_DEV_PIIX=y
+# CONFIG_BLK_DEV_IT8213 is not set
 # CONFIG_BLK_DEV_IT821X is not set
 # CONFIG_BLK_DEV_NS87415 is not set
 # CONFIG_BLK_DEV_PDC202XX_OLD is not set
@@ -507,6 +512,7 @@ CONFIG_BLK_DEV_PDC202XX_NEW=y
 # CONFIG_BLK_DEV_SLC90E66 is not set
 # CONFIG_BLK_DEV_TRM290 is not set
 # CONFIG_BLK_DEV_VIA82CXXX is not set
+# CONFIG_BLK_DEV_TC86C001 is not set
 # CONFIG_IDE_ARM is not set
 CONFIG_BLK_DEV_IDEDMA=y
 # CONFIG_IDEDMA_IVB is not set
@@ -599,6 +605,7 @@ CONFIG_MEGARAID_SAS=y
 # Serial ATA (prod) and Parallel ATA (experimental) drivers
 #
 CONFIG_ATA=y
+# CONFIG_ATA_NONSTANDARD is not set
 CONFIG_SATA_AHCI=y
 CONFIG_SATA_SVW=y
 CONFIG_ATA_PIIX=y
@@ -614,6 +621,7 @@ CONFIG_SATA_SIL=y
 # CONFIG_SATA_ULI is not set
 CONFIG_SATA_VIA=y
 # CONFIG_SATA_VITESSE is not set
+# CONFIG_SATA_INIC162X is not set
 CONFIG_SATA_INTEL_COMBINED=y
 # CONFIG_PATA_ALI is not set
 # CONFIG_PATA_AMD is not set
@@ -630,6 +638,7 @@ CONFIG_SATA_INTEL_COMBINED=y
 # CONFIG_PATA_HPT3X2N is not set
 # CONFIG_PATA_HPT3X3 is not set
 # CONFIG_PATA_IT821X is not set
+# CONFIG_PATA_IT8213 is not set
 # CONFIG_PATA_JMICRON is not set
 # CONFIG_PATA_TRIFLEX is not set
 # CONFIG_PATA_MARVELL is not set
@@ -682,9 +691,7 @@ CONFIG_IEEE1394=y
 # Subsystem Options
 #
 # CONFIG_IEEE1394_VERBOSEDEBUG is not set
-# CONFIG_IEEE1394_OUI_DB is not set
 # CONFIG_IEEE1394_EXTRA_CONFIG_ROMS is not set
-# CONFIG_IEEE1394_EXPORT_FULL_API is not set
 
 #
 # Device Drivers
@@ -707,6 +714,11 @@ CONFIG_IEEE1394_RAWIO=y
 # CONFIG_I2O is not set
 
 #
+# Macintosh device drivers
+#
+# CONFIG_MAC_EMUMOUSEBTN is not set
+
+#
 # Network device support
 #
 CONFIG_NETDEVICES=y
@@ -774,6 +786,7 @@ CONFIG_8139TOO=y
 # CONFIG_EPIC100 is not set
 # CONFIG_SUNDANCE is not set
 # CONFIG_VIA_RHINE is not set
+# CONFIG_SC92031 is not set
 
 #
 # Ethernet (1000 Mbit)
@@ -795,11 +808,13 @@ CONFIG_E1000=y
 CONFIG_TIGON3=y
 CONFIG_BNX2=y
 # CONFIG_QLA3XXX is not set
+# CONFIG_ATL1 is not set
 
 #
 # Ethernet (10000 Mbit)
 #
 # CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
 # CONFIG_IXGB is not set
 CONFIG_S2IO=m
 # CONFIG_S2IO_NAPI is not set
@@ -1115,6 +1130,7 @@ CONFIG_SOUND=y
 # Open Sound System
 #
 CONFIG_SOUND_PRIME=y
+CONFIG_OBSOLETE_OSS=y
 # CONFIG_SOUND_BT878 is not set
 # CONFIG_SOUND_ES1371 is not set
 CONFIG_SOUND_ICH=y
@@ -1128,6 +1144,7 @@ CONFIG_SOUND_ICH=y
 # HID Devices
 #
 CONFIG_HID=y
+# CONFIG_HID_DEBUG is not set
 
 #
 # USB support
@@ -1142,10 +1159,8 @@ CONFIG_USB=y
 # Miscellaneous USB options
 #
 CONFIG_USB_DEVICEFS=y
-# CONFIG_USB_BANDWIDTH is not set
 # CONFIG_USB_DYNAMIC_MINORS is not set
 # CONFIG_USB_SUSPEND is not set
-# CONFIG_USB_MULTITHREAD_PROBE is not set
 # CONFIG_USB_OTG is not set
 
 #
@@ -1155,9 +1170,11 @@ CONFIG_USB_EHCI_HCD=y
 # CONFIG_USB_EHCI_SPLIT_ISO is not set
 # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
 # CONFIG_USB_EHCI_TT_NEWSCHED is not set
+# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set
 # CONFIG_USB_ISP116X_HCD is not set
 CONFIG_USB_OHCI_HCD=y
-# CONFIG_USB_OHCI_BIG_ENDIAN is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
+# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
 CONFIG_USB_OHCI_LITTLE_ENDIAN=y
 CONFIG_USB_UHCI_HCD=y
 # CONFIG_USB_SL811_HCD is not set
@@ -1208,6 +1225,7 @@ CONFIG_USB_HID=y
 # CONFIG_USB_ATI_REMOTE2 is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
 # CONFIG_USB_APPLETOUCH is not set
+# CONFIG_USB_GTCO is not set
 
 #
 # USB Imaging devices
@@ -1313,6 +1331,10 @@ CONFIG_USB_MON=y
 #
 
 #
+# Auxiliary Display support
+#
+
+#
 # Virtualization
 #
 # CONFIG_KVM is not set
@@ -1512,6 +1534,7 @@ CONFIG_UNUSED_SYMBOLS=y
 CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
 CONFIG_LOG_BUF_SHIFT=18
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
@@ -1520,7 +1543,6 @@ CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_DEBUG_RWSEMS is not set
 # CONFIG_DEBUG_LOCK_ALLOC is not set
 # CONFIG_PROVE_LOCKING is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
@@ -1560,4 +1582,5 @@ CONFIG_CRC32=y
 # CONFIG_LIBCRC32C is not set
 CONFIG_ZLIB_INFLATE=y
 CONFIG_PLIST=y
-CONFIG_IOMAP_COPY=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
diff --git a/arch/x86_64/ia32/ia32_signal.c b/arch/x86_64/ia32/ia32_signal.c
index ff499ef2a1b..359eacc3850 100644
--- a/arch/x86_64/ia32/ia32_signal.c
+++ b/arch/x86_64/ia32/ia32_signal.c
@@ -21,6 +21,7 @@
 #include <linux/stddef.h>
 #include <linux/personality.h>
 #include <linux/compat.h>
+#include <linux/binfmts.h>
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/i387.h>
@@ -449,7 +450,11 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 
 	/* Return stub is in 32bit vsyscall page */
 	{ 
-		void __user *restorer = VSYSCALL32_SIGRETURN; 
+		void __user *restorer;
+		if (current->binfmt->hasvdso)
+			restorer = VSYSCALL32_SIGRETURN;
+		else
+			restorer = (void *)&frame->retcode;
 		if (ka->sa.sa_flags & SA_RESTORER)
 			restorer = ka->sa.sa_restorer;       
 		err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);
@@ -495,7 +500,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
 		ptrace_notify(SIGTRAP);
 
 #if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
+	printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
 		current->comm, current->pid, frame, regs->rip, frame->pretcode);
 #endif
 
@@ -601,7 +606,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 		ptrace_notify(SIGTRAP);
 
 #if DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
+	printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%u\n",
 		current->comm, current->pid, frame, regs->rip, frame->pretcode);
 #endif
 
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index 5f32cf4de5f..eda7a0d4dc1 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -718,4 +718,5 @@ ia32_sys_call_table:
 	.quad compat_sys_vmsplice
 	.quad compat_sys_move_pages
 	.quad sys_getcpu
+	.quad sys_epoll_pwait
 ia32_syscall_end:		
diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile
index 3c7cbff04d3..ae399458024 100644
--- a/arch/x86_64/kernel/Makefile
+++ b/arch/x86_64/kernel/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_PCI)		+= early-quirks.o
 
 obj-y				+= topology.o
 obj-y				+= intel_cacheinfo.o
+obj-y				+= pcspeaker.o
 
 CFLAGS_vsyscall.o		:= $(PROFILING) -g0
 
@@ -56,3 +57,4 @@ quirks-y			+= ../../i386/kernel/quirks.o
 i8237-y				+= ../../i386/kernel/i8237.o
 msr-$(subst m,y,$(CONFIG_X86_MSR))  += ../../i386/kernel/msr.o
 alternative-y			+= ../../i386/kernel/alternative.o
+pcspeaker-y			+= ../../i386/kernel/pcspeaker.o
diff --git a/arch/x86_64/kernel/acpi/sleep.c b/arch/x86_64/kernel/acpi/sleep.c
index 5ebf62c7a3d..23178ce6c78 100644
--- a/arch/x86_64/kernel/acpi/sleep.c
+++ b/arch/x86_64/kernel/acpi/sleep.c
@@ -58,7 +58,7 @@ unsigned long acpi_wakeup_address = 0;
 unsigned long acpi_video_flags;
 extern char wakeup_start, wakeup_end;
 
-extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long));
+extern unsigned long acpi_copy_wakeup_routine(unsigned long);
 
 static pgd_t low_ptr;
 
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index 6fe191c5808..4651fd22b21 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -83,6 +83,13 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
 		return 1;
 	}
 
+#ifdef CONFIG_NUMA
+	/* NUMA memory to node map */
+	if (last >= nodemap_addr && addr < nodemap_addr + nodemap_size) {
+		*addrp = nodemap_addr + nodemap_size;
+		return 1;
+	}
+#endif
 	/* XXX ramdisk image here? */ 
 	return 0;
 } 
@@ -184,6 +191,37 @@ unsigned long __init e820_end_of_ram(void)
 }
 
 /*
+ * Find the hole size in the range.
+ */
+unsigned long __init e820_hole_size(unsigned long start, unsigned long end)
+{
+	unsigned long ram = 0;
+	int i;
+
+	for (i = 0; i < e820.nr_map; i++) {
+		struct e820entry *ei = &e820.map[i];
+		unsigned long last, addr;
+
+		if (ei->type != E820_RAM ||
+		    ei->addr+ei->size <= start ||
+		    ei->addr >= end)
+			continue;
+
+		addr = round_up(ei->addr, PAGE_SIZE);
+		if (addr < start)
+			addr = start;
+
+		last = round_down(ei->addr + ei->size, PAGE_SIZE);
+		if (last >= end)
+			last = end;
+
+		if (last > addr)
+			ram += last - addr;
+	}
+	return ((end - start) - ram);
+}
+
+/*
  * Mark e820 reserved areas as busy for the resource manager.
  */
 void __init e820_reserve_resources(void)
diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S
index 1e6f8087067..598a4d0351f 100644
--- a/arch/x86_64/kernel/head.S
+++ b/arch/x86_64/kernel/head.S
@@ -163,6 +163,20 @@ startup_64:
 	 */
 	lgdt	cpu_gdt_descr
 
+	/* set up data segments. actually 0 would do too */
+	movl $__KERNEL_DS,%eax
+	movl %eax,%ds
+	movl %eax,%ss
+	movl %eax,%es
+
+	/*
+	 * We don't really need to load %fs or %gs, but load them anyway
+	 * to kill any stale realmode selectors.  This allows execution
+	 * under VT hardware.
+	 */
+	movl %eax,%fs
+	movl %eax,%gs
+
 	/* 
 	 * Setup up a dummy PDA. this is just for some early bootup code
 	 * that does in_interrupt() 
@@ -173,12 +187,6 @@ startup_64:
 	shrq	$32,%rdx
 	wrmsr	
 
-	/* set up data segments. actually 0 would do too */
-	movl $__KERNEL_DS,%eax
-	movl %eax,%ds	
-	movl %eax,%ss
-	movl %eax,%es
-			
 	/* esi is pointer to real mode structure with interesting info.
 	   pass it to C */
 	movl	%esi, %edi
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 6be6730acb5..566e64d966c 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -831,7 +831,7 @@ static void __init setup_IO_APIC_irq(int apic, int pin, int idx, int irq)
 	entry.delivery_mode = INT_DELIVERY_MODE;
 	entry.dest_mode = INT_DEST_MODE;
 	entry.mask = 0;				/* enable IRQ */
-	entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
+	entry.dest = cpu_mask_to_apicid(TARGET_CPUS);
 
 	entry.trigger = irq_trigger(idx);
 	entry.polarity = irq_polarity(idx);
@@ -839,7 +839,7 @@ static void __init setup_IO_APIC_irq(int apic, int pin, int idx, int irq)
 	if (irq_trigger(idx)) {
 		entry.trigger = 1;
 		entry.mask = 1;
-		entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
+		entry.dest = cpu_mask_to_apicid(TARGET_CPUS);
 	}
 
 	if (!apic && !IO_APIC_IRQ(irq))
@@ -851,7 +851,7 @@ static void __init setup_IO_APIC_irq(int apic, int pin, int idx, int irq)
 		if (vector < 0)
 			return;
 
-		entry.dest.logical.logical_dest = cpu_mask_to_apicid(mask);
+		entry.dest = cpu_mask_to_apicid(mask);
 		entry.vector = vector;
 
 		ioapic_register_intr(irq, vector, IOAPIC_AUTO);
@@ -920,7 +920,7 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, in
 	 */
 	entry.dest_mode = INT_DEST_MODE;
 	entry.mask = 0;					/* unmask IRQ now */
-	entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
+	entry.dest = cpu_mask_to_apicid(TARGET_CPUS);
 	entry.delivery_mode = INT_DELIVERY_MODE;
 	entry.polarity = 0;
 	entry.trigger = 0;
@@ -1020,18 +1020,17 @@ void __apicdebuginit print_IO_APIC(void)
 
 	printk(KERN_DEBUG ".... IRQ redirection table:\n");
 
-	printk(KERN_DEBUG " NR Log Phy Mask Trig IRR Pol"
-			  " Stat Dest Deli Vect:   \n");
+	printk(KERN_DEBUG " NR Dst Mask Trig IRR Pol"
+			  " Stat Dmod Deli Vect:   \n");
 
 	for (i = 0; i <= reg_01.bits.entries; i++) {
 		struct IO_APIC_route_entry entry;
 
 		entry = ioapic_read_entry(apic, i);
 
-		printk(KERN_DEBUG " %02x %03X %02X  ",
+		printk(KERN_DEBUG " %02x %03X ",
 			i,
-			entry.dest.logical.logical_dest,
-			entry.dest.physical.physical_dest
+			entry.dest
 		);
 
 		printk("%1d    %1d    %1d   %1d   %1d    %1d    %1d    %02X\n",
@@ -1293,8 +1292,7 @@ void disable_IO_APIC(void)
 		entry.dest_mode       = 0; /* Physical */
 		entry.delivery_mode   = dest_ExtINT; /* ExtInt */
 		entry.vector          = 0;
-		entry.dest.physical.physical_dest =
-					GET_APIC_ID(apic_read(APIC_ID));
+		entry.dest          = GET_APIC_ID(apic_read(APIC_ID));
 
 		/*
 		 * Add it to the IO-APIC irq-routing table:
@@ -1556,7 +1554,7 @@ static inline void unlock_ExtINT_logic(void)
 
 	entry1.dest_mode = 0;			/* physical delivery */
 	entry1.mask = 0;			/* unmask IRQ now */
-	entry1.dest.physical.physical_dest = hard_smp_processor_id();
+	entry1.dest = hard_smp_processor_id();
 	entry1.delivery_mode = dest_ExtINT;
 	entry1.polarity = entry0.polarity;
 	entry1.trigger = 0;
@@ -2131,7 +2129,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int triggering, int p
 
 	entry.delivery_mode = INT_DELIVERY_MODE;
 	entry.dest_mode = INT_DEST_MODE;
-	entry.dest.logical.logical_dest = cpu_mask_to_apicid(mask);
+	entry.dest = cpu_mask_to_apicid(mask);
 	entry.trigger = triggering;
 	entry.polarity = polarity;
 	entry.mask = 1;					 /* Disabled (masked) */
diff --git a/arch/x86_64/kernel/ioport.c b/arch/x86_64/kernel/ioport.c
index fe063d3cfe4..745b1f0f494 100644
--- a/arch/x86_64/kernel/ioport.c
+++ b/arch/x86_64/kernel/ioport.c
@@ -114,6 +114,6 @@ asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs)
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
 	}
-	regs->eflags = (regs->eflags &~ 0x3000UL) | (level << 12);
+	regs->eflags = (regs->eflags &~ X86_EFLAGS_IOPL) | (level << 12);
 	return 0;
 }
diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c
index 0c06af6c13b..3bc30d2c13d 100644
--- a/arch/x86_64/kernel/irq.c
+++ b/arch/x86_64/kernel/irq.c
@@ -18,6 +18,7 @@
 #include <asm/uaccess.h>
 #include <asm/io_apic.h>
 #include <asm/idle.h>
+#include <asm/smp.h>
 
 atomic_t irq_err_count;
 
@@ -120,9 +121,14 @@ asmlinkage unsigned int do_IRQ(struct pt_regs *regs)
 
 	if (likely(irq < NR_IRQS))
 		generic_handle_irq(irq);
-	else if (printk_ratelimit())
-		printk(KERN_EMERG "%s: %d.%d No irq handler for vector\n",
-			__func__, smp_processor_id(), vector);
+	else {
+		if (!disable_apic)
+			ack_APIC_irq();
+
+		if (printk_ratelimit())
+			printk(KERN_EMERG "%s: %d.%d No irq handler for vector\n",
+				__func__, smp_processor_id(), vector);
+	}
 
 	irq_exit();
 
diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c
index bdb54a2c9f1..8011a8e1c7d 100644
--- a/arch/x86_64/kernel/mce.c
+++ b/arch/x86_64/kernel/mce.c
@@ -19,6 +19,7 @@
 #include <linux/cpu.h>
 #include <linux/percpu.h>
 #include <linux/ctype.h>
+#include <linux/kmod.h>
 #include <asm/processor.h> 
 #include <asm/msr.h>
 #include <asm/mce.h>
@@ -42,6 +43,10 @@ static unsigned long console_logged;
 static int notify_user;
 static int rip_msr;
 static int mce_bootlog = 1;
+static atomic_t mce_events;
+
+static char trigger[128];
+static char *trigger_argv[2] = { trigger, NULL };
 
 /*
  * Lockless MCE logging infrastructure.
@@ -57,6 +62,7 @@ struct mce_log mcelog = {
 void mce_log(struct mce *mce)
 {
 	unsigned next, entry;
+	atomic_inc(&mce_events);
 	mce->finished = 0;
 	wmb();
 	for (;;) {
@@ -161,6 +167,17 @@ static inline void mce_get_rip(struct mce *m, struct pt_regs *regs)
 	}
 }
 
+static void do_mce_trigger(void)
+{
+	static atomic_t mce_logged;
+	int events = atomic_read(&mce_events);
+	if (events != atomic_read(&mce_logged) && trigger[0]) {
+		/* Small race window, but should be harmless.  */
+		atomic_set(&mce_logged, events);
+		call_usermodehelper(trigger, trigger_argv, NULL, -1);
+	}
+}
+
 /* 
  * The actual machine check handler
  */
@@ -234,8 +251,12 @@ void do_machine_check(struct pt_regs * regs, long error_code)
 	}
 
 	/* Never do anything final in the polling timer */
-	if (!regs)
+	if (!regs) {
+		/* Normal interrupt context here. Call trigger for any new
+		   events. */
+		do_mce_trigger();
 		goto out;
+	}
 
 	/* If we didn't find an uncorrectable error, pick
 	   the last one (shouldn't happen, just being safe). */
@@ -606,17 +627,42 @@ DEFINE_PER_CPU(struct sys_device, device_mce);
 	}									   \
 	static SYSDEV_ATTR(name, 0644, show_ ## name, set_ ## name);
 
+/* TBD should generate these dynamically based on number of available banks */
 ACCESSOR(bank0ctl,bank[0],mce_restart())
 ACCESSOR(bank1ctl,bank[1],mce_restart())
 ACCESSOR(bank2ctl,bank[2],mce_restart())
 ACCESSOR(bank3ctl,bank[3],mce_restart())
 ACCESSOR(bank4ctl,bank[4],mce_restart())
 ACCESSOR(bank5ctl,bank[5],mce_restart())
-static struct sysdev_attribute * bank_attributes[NR_BANKS] = {
-	&attr_bank0ctl, &attr_bank1ctl, &attr_bank2ctl,
-	&attr_bank3ctl, &attr_bank4ctl, &attr_bank5ctl};
+
+static ssize_t show_trigger(struct sys_device *s, char *buf)
+{
+	strcpy(buf, trigger);
+	strcat(buf, "\n");
+	return strlen(trigger) + 1;
+}
+
+static ssize_t set_trigger(struct sys_device *s,const char *buf,size_t siz)
+{
+	char *p;
+	int len;
+	strncpy(trigger, buf, sizeof(trigger));
+	trigger[sizeof(trigger)-1] = 0;
+	len = strlen(trigger);
+	p = strchr(trigger, '\n');
+	if (*p) *p = 0;
+	return len;
+}
+
+static SYSDEV_ATTR(trigger, 0644, show_trigger, set_trigger);
 ACCESSOR(tolerant,tolerant,)
 ACCESSOR(check_interval,check_interval,mce_restart())
+static struct sysdev_attribute *mce_attributes[] = {
+	&attr_bank0ctl, &attr_bank1ctl, &attr_bank2ctl,
+	&attr_bank3ctl, &attr_bank4ctl, &attr_bank5ctl,
+	&attr_tolerant, &attr_check_interval, &attr_trigger,
+	NULL
+};
 
 /* Per cpu sysdev init.  All of the cpus still share the same ctl bank */
 static __cpuinit int mce_create_device(unsigned int cpu)
@@ -632,11 +678,9 @@ static __cpuinit int mce_create_device(unsigned int cpu)
 	err = sysdev_register(&per_cpu(device_mce,cpu));
 
 	if (!err) {
-		for (i = 0; i < banks; i++)
+		for (i = 0; mce_attributes[i]; i++)
 			sysdev_create_file(&per_cpu(device_mce,cpu),
-				bank_attributes[i]);
-		sysdev_create_file(&per_cpu(device_mce,cpu), &attr_tolerant);
-		sysdev_create_file(&per_cpu(device_mce,cpu), &attr_check_interval);
+				mce_attributes[i]);
 	}
 	return err;
 }
@@ -645,11 +689,9 @@ static void mce_remove_device(unsigned int cpu)
 {
 	int i;
 
-	for (i = 0; i < banks; i++)
+	for (i = 0; mce_attributes[i]; i++)
 		sysdev_remove_file(&per_cpu(device_mce,cpu),
-			bank_attributes[i]);
-	sysdev_remove_file(&per_cpu(device_mce,cpu), &attr_tolerant);
-	sysdev_remove_file(&per_cpu(device_mce,cpu), &attr_check_interval);
+			mce_attributes[i]);
 	sysdev_unregister(&per_cpu(device_mce,cpu));
 	memset(&per_cpu(device_mce, cpu).kobj, 0, sizeof(struct kobject));
 }
diff --git a/arch/x86_64/kernel/mce_amd.c b/arch/x86_64/kernel/mce_amd.c
index 93c70725763..d0bd5d66e10 100644
--- a/arch/x86_64/kernel/mce_amd.c
+++ b/arch/x86_64/kernel/mce_amd.c
@@ -37,6 +37,8 @@
 #define THRESHOLD_MAX     0xFFF
 #define INT_TYPE_APIC     0x00020000
 #define MASK_VALID_HI     0x80000000
+#define MASK_CNTP_HI      0x40000000
+#define MASK_LOCKED_HI    0x20000000
 #define MASK_LVTOFF_HI    0x00F00000
 #define MASK_COUNT_EN_HI  0x00080000
 #define MASK_INT_TYPE_HI  0x00060000
@@ -122,14 +124,17 @@ void __cpuinit mce_amd_feature_init(struct cpuinfo_x86 *c)
 		for (block = 0; block < NR_BLOCKS; ++block) {
 			if (block == 0)
 				address = MSR_IA32_MC0_MISC + bank * 4;
-			else if (block == 1)
-				address = MCG_XBLK_ADDR
-					+ ((low & MASK_BLKPTR_LO) >> 21);
+			else if (block == 1) {
+				address = (low & MASK_BLKPTR_LO) >> 21;
+				if (!address)
+					break;
+				address += MCG_XBLK_ADDR;
+			}
 			else
 				++address;
 
 			if (rdmsr_safe(address, &low, &high))
-				continue;
+				break;
 
 			if (!(high & MASK_VALID_HI)) {
 				if (block)
@@ -138,8 +143,8 @@ void __cpuinit mce_amd_feature_init(struct cpuinfo_x86 *c)
 					break;
 			}
 
-			if (!(high & MASK_VALID_HI >> 1)  ||
-			     (high & MASK_VALID_HI >> 2))
+			if (!(high & MASK_CNTP_HI)  ||
+			     (high & MASK_LOCKED_HI))
 				continue;
 
 			if (!block)
@@ -187,17 +192,22 @@ asmlinkage void mce_threshold_interrupt(void)
 
 	/* assume first bank caused it */
 	for (bank = 0; bank < NR_BANKS; ++bank) {
+		if (!(per_cpu(bank_map, m.cpu) & (1 << bank)))
+			continue;
 		for (block = 0; block < NR_BLOCKS; ++block) {
 			if (block == 0)
 				address = MSR_IA32_MC0_MISC + bank * 4;
-			else if (block == 1)
-				address = MCG_XBLK_ADDR
-					+ ((low & MASK_BLKPTR_LO) >> 21);
+			else if (block == 1) {
+				address = (low & MASK_BLKPTR_LO) >> 21;
+				if (!address)
+					break;
+				address += MCG_XBLK_ADDR;
+			}