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

…nux-2.6

* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
  [PATCH] x86-64: no paravirt for X86_VOYAGER or X86_VISWS
  [PATCH] i386: Fix io_apic.c warning
  [PATCH] i386: export smp_num_siblings for oprofile
  [PATCH] x86: Work around gcc 4.2 over aggressive optimizer
  [PATCH] x86: Fix boot hang due to nmi watchdog init code
  [PATCH] x86: Fix verify_quirk_intel_irqbalance()
  [PATCH] i386: Update defconfig
  [PATCH] x86-64: Update defconfig

arch/i386/Kconfig

@@ -190,6 +190,7 @@ endchoice
 config PARAVIRT
 	bool "Paravirtualization support (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
+	depends on !(X86_VISWS || X86_VOYAGER)
 	help
 	  Paravirtualization is a way of running multiple instances of
 	  Linux on the same machine, under a hypervisor.  This option

arch/i386/defconfig

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.19-git7
-# Wed Dec  6 23:50:49 2006
+# Linux kernel version: 2.6.19-git14
+# Sat Dec  9 21:23:14 2006
 #
 CONFIG_X86_32=y
 CONFIG_GENERIC_TIME=y
@@ -12,6 +12,7 @@ CONFIG_X86=y
 CONFIG_MMU=y
 CONFIG_GENERIC_ISA_DMA=y
 CONFIG_GENERIC_IOMAP=y
+CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_ARCH_MAY_HAVE_PC_FDC=y
 CONFIG_DMI=y
@@ -141,6 +142,8 @@ CONFIG_X86_CMPXCHG=y
 CONFIG_X86_XADD=y
 CONFIG_X86_L1_CACHE_SHIFT=7
 CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_X86_WP_WORKS_OK=y
 CONFIG_X86_INVLPG=y
@@ -203,6 +206,7 @@ CONFIG_MTRR=y
 CONFIG_SECCOMP=y
 # CONFIG_HZ_100 is not set
 CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
 # CONFIG_HZ_1000 is not set
 CONFIG_HZ=250
 # CONFIG_KEXEC is not set
@@ -563,6 +567,7 @@ CONFIG_IDEDMA_AUTO=y
 #
 # CONFIG_RAID_ATTRS is not set
 CONFIG_SCSI=y
+# CONFIG_SCSI_TGT is not set
 CONFIG_SCSI_NETLINK=y
 # CONFIG_SCSI_PROC_FS is not set
 
@@ -583,6 +588,7 @@ CONFIG_CHR_DEV_SG=y
 # CONFIG_SCSI_MULTI_LUN is not set
 # CONFIG_SCSI_CONSTANTS is not set
 # CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
 
 #
 # SCSI Transports
@@ -642,6 +648,7 @@ CONFIG_AIC79XX_DEBUG_MASK=0
 # CONFIG_SCSI_DC390T is not set
 # CONFIG_SCSI_NSP32 is not set
 # CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_SRP is not set
 
 #
 # Serial ATA (prod) and Parallel ATA (experimental) drivers
@@ -1082,10 +1089,7 @@ CONFIG_SOUND=y
 # Open Sound System
 #
 CONFIG_SOUND_PRIME=y
-CONFIG_OSS_OBSOLETE_DRIVER=y
 # CONFIG_SOUND_BT878 is not set
-# CONFIG_SOUND_EMU10K1 is not set
-# CONFIG_SOUND_FUSION is not set
 # CONFIG_SOUND_ES1371 is not set
 CONFIG_SOUND_ICH=y
 # CONFIG_SOUND_TRIDENT is not set
@@ -1094,6 +1098,11 @@ CONFIG_SOUND_ICH=y
 # CONFIG_SOUND_VIA82CXXX is not set
 # CONFIG_SOUND_OSS is not set
 
+#
+# HID Devices
+#
+CONFIG_HID=y
+
 #
 # USB support
 #
@@ -1158,8 +1167,7 @@ CONFIG_USB_STORAGE=y
 # USB Input Devices
 #
 CONFIG_USB_HID=y
-CONFIG_USB_HIDINPUT=y
-# CONFIG_USB_HIDINPUT_POWERBOOK is not set
+# CONFIG_USB_HID_POWERBOOK is not set
 # CONFIG_HID_FF is not set
 # CONFIG_USB_HIDDEV is not set
 # CONFIG_USB_AIPTEK is not set
@@ -1443,6 +1451,11 @@ CONFIG_NLS_ISO8859_15=y
 # CONFIG_NLS_KOI8_U is not set
 CONFIG_NLS_UTF8=y
 
+#
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
 #
 # Instrumentation Support
 #
@@ -1509,6 +1522,7 @@ CONFIG_DOUBLEFAULT=y
 #
 # Library routines
 #
+CONFIG_BITREVERSE=y
 # CONFIG_CRC_CCITT is not set
 # CONFIG_CRC16 is not set
 CONFIG_CRC32=y

arch/i386/kernel/io_apic.c

@@ -2485,7 +2485,7 @@ device_initcall(ioapic_init_sysfs);
 int create_irq(void)
 {
 	/* Allocate an unused irq */
-	int irq, new, vector;
+	int irq, new, vector = 0;
 	unsigned long flags;
 
 	irq = -ENOSPC;

arch/i386/kernel/nmi.c

@@ -195,29 +195,29 @@ static __cpuinit inline int nmi_known_cpu(void)
 	return 0;
 }
 
+static int endflag __initdata = 0;
+
 #ifdef CONFIG_SMP
 /* The performance counters used by NMI_LOCAL_APIC don't trigger when
  * the CPU is idle. To make sure the NMI watchdog really ticks on all
  * CPUs during the test make them busy.
  */
 static __init void nmi_cpu_busy(void *data)
 {
-	volatile int *endflag = data;
 	local_irq_enable_in_hardirq();
 	/* Intentionally don't use cpu_relax here. This is
 	   to make sure that the performance counter really ticks,
 	   even if there is a simulator or similar that catches the
 	   pause instruction. On a real HT machine this is fine because
 	   all other CPUs are busy with "useless" delay loops and don't
 	   care if they get somewhat less cycles. */
-	while (*endflag == 0)
-		barrier();
+	while (endflag == 0)
+		mb();
 }
 #endif
 
 static int __init check_nmi_watchdog(void)
 {
-	volatile int endflag = 0;
 	unsigned int *prev_nmi_count;
 	int cpu;
 

arch/i386/kernel/quirks.c

@@ -10,13 +10,38 @@
 #if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_SMP) && defined(CONFIG_PCI)
 static void __devinit verify_quirk_intel_irqbalance(struct pci_dev *dev)
 {
+	u8 config, rev;
+	u32 word;
+
+	/* BIOS may enable hardware IRQ balancing for
+	 * E7520/E7320/E7525(revision ID 0x9 and below)
+	 * based platforms.
+	 * For those platforms, make sure that the genapic is set to 'flat'
+	 */
+	pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev);
+	if (rev > 0x9)
+		return;
+
+	/* enable access to config space*/
+	pci_read_config_byte(dev, 0xf4, &config);
+	pci_write_config_byte(dev, 0xf4, config|0x2);
+
+	/* read xTPR register */
+	raw_pci_ops->read(0, 0, 0x40, 0x4c, 2, &word);
+
+	if (!(word & (1 << 13))) {
 #ifdef CONFIG_X86_64
-	if (genapic !=  &apic_flat)
-		panic("APIC mode must be flat on this system\n");
+		if (genapic !=  &apic_flat)
+			panic("APIC mode must be flat on this system\n");
 #elif defined(CONFIG_X86_GENERICARCH)
-	if (genapic != &apic_default)
-		panic("APIC mode must be default(flat) on this system. Use apic=default\n");
+		if (genapic != &apic_default)
+			panic("APIC mode must be default(flat) on this system. Use apic=default\n");
 #endif
+	}
+
+	/* put back the original value for config space*/
+	if (!(config & 0x2))
+		pci_write_config_byte(dev, 0xf4, config);
 }
 
 void __init quirk_intel_irqbalance(void)

arch/i386/kernel/smpboot.c

@@ -69,7 +69,7 @@ static int __devinitdata smp_b_stepping;
 
 /* Number of siblings per CPU package */
 int smp_num_siblings = 1;
-#ifdef CONFIG_X86_HT
+#ifdef CONFIG_SMP
 EXPORT_SYMBOL(smp_num_siblings);
 #endif
 

arch/i386/kernel/vmlinux.lds.S

@@ -26,6 +26,7 @@ OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
 OUTPUT_ARCH(i386)
 ENTRY(phys_startup_32)
 jiffies = jiffies_64;
+_proxy_pda = 0;
 
 PHDRS {
 	text PT_LOAD FLAGS(5);	/* R_E */

arch/x86_64/defconfig

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.19-git7
-# Wed Dec  6 23:50:47 2006
+# Linux kernel version: 2.6.19-git14
+# Sat Dec  9 21:23:09 2006
 #
 CONFIG_X86_64=y
 CONFIG_64BIT=y
@@ -22,6 +22,9 @@ CONFIG_ARCH_MAY_HAVE_PC_FDC=y
 CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_DMI=y
 CONFIG_AUDIT_ARCH=y
+CONFIG_GENERIC_BUG=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
@@ -170,6 +173,7 @@ CONFIG_SECCOMP=y
 # CONFIG_CC_STACKPROTECTOR is not set
 # CONFIG_HZ_100 is not set
 CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
 # CONFIG_HZ_1000 is not set
 CONFIG_HZ=250
 # CONFIG_REORDER is not set
@@ -514,6 +518,7 @@ CONFIG_IDEDMA_AUTO=y
 #
 # CONFIG_RAID_ATTRS is not set
 CONFIG_SCSI=y
+# CONFIG_SCSI_TGT is not set
 CONFIG_SCSI_NETLINK=y
 # CONFIG_SCSI_PROC_FS is not set
 
@@ -534,6 +539,7 @@ CONFIG_CHR_DEV_SG=y
 # CONFIG_SCSI_MULTI_LUN is not set
 CONFIG_SCSI_CONSTANTS=y
 # CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
 
 #
 # SCSI Transports
@@ -587,6 +593,7 @@ CONFIG_MEGARAID_SAS=y
 # CONFIG_SCSI_DC395x is not set
 # CONFIG_SCSI_DC390T is not set
 # CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_SRP is not set
 
 #
 # Serial ATA (prod) and Parallel ATA (experimental) drivers
@@ -1106,10 +1113,7 @@ CONFIG_SOUND=y
 # Open Sound System
 #
 CONFIG_SOUND_PRIME=y
-CONFIG_OSS_OBSOLETE_DRIVER=y
 # CONFIG_SOUND_BT878 is not set
-# CONFIG_SOUND_EMU10K1 is not set
-# CONFIG_SOUND_FUSION is not set
 # CONFIG_SOUND_ES1371 is not set
 CONFIG_SOUND_ICH=y
 # CONFIG_SOUND_TRIDENT is not set
@@ -1118,6 +1122,11 @@ CONFIG_SOUND_ICH=y
 # CONFIG_SOUND_VIA82CXXX is not set
 # CONFIG_SOUND_OSS is not set
 
+#
+# HID Devices
+#
+CONFIG_HID=y
+
 #
 # USB support
 #
@@ -1182,8 +1191,7 @@ CONFIG_USB_STORAGE=y
 # USB Input Devices
 #
 CONFIG_USB_HID=y
-CONFIG_USB_HIDINPUT=y
-# CONFIG_USB_HIDINPUT_POWERBOOK is not set
+# CONFIG_USB_HID_POWERBOOK is not set
 # CONFIG_HID_FF is not set
 # CONFIG_USB_HIDDEV is not set
 # CONFIG_USB_AIPTEK is not set
@@ -1474,6 +1482,11 @@ CONFIG_NLS_ISO8859_15=y
 # CONFIG_NLS_KOI8_U is not set
 CONFIG_NLS_UTF8=y
 
+#
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
 #
 # Instrumentation Support
 #
@@ -1504,6 +1517,7 @@ CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
 # CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 CONFIG_DEBUG_FS=y
 # CONFIG_DEBUG_VM is not set
@@ -1534,6 +1548,7 @@ CONFIG_DEBUG_STACKOVERFLOW=y
 #
 # Library routines
 #
+CONFIG_BITREVERSE=y
 # CONFIG_CRC_CCITT is not set
 # CONFIG_CRC16 is not set
 CONFIG_CRC32=y

arch/x86_64/kernel/nmi.c

@@ -193,29 +193,29 @@ void nmi_watchdog_default(void)
 		nmi_watchdog = NMI_IO_APIC;
 }
 
+static int endflag __initdata = 0;
+
 #ifdef CONFIG_SMP
 /* The performance counters used by NMI_LOCAL_APIC don't trigger when
  * the CPU is idle. To make sure the NMI watchdog really ticks on all
  * CPUs during the test make them busy.
  */
 static __init void nmi_cpu_busy(void *data)
 {
-	volatile int *endflag = data;
 	local_irq_enable_in_hardirq();
 	/* Intentionally don't use cpu_relax here. This is
 	   to make sure that the performance counter really ticks,
 	   even if there is a simulator or similar that catches the
 	   pause instruction. On a real HT machine this is fine because
 	   all other CPUs are busy with "useless" delay loops and don't
 	   care if they get somewhat less cycles. */
-	while (*endflag == 0)
-		barrier();
+	while (endflag == 0)
+		mb();
 }
 #endif
 
 int __init check_nmi_watchdog (void)
 {
-	volatile int endflag = 0;
 	int *counts;
 	int cpu;
 
@@ -256,6 +256,7 @@ int __init check_nmi_watchdog (void)
 	if (!atomic_read(&nmi_active)) {
 		kfree(counts);
 		atomic_set(&nmi_active, -1);
+		endflag = 1;
 		return -1;
 	}
 	endflag = 1;

arch/x86_64/kernel/vmlinux.lds.S

@@ -13,6 +13,7 @@ OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
 OUTPUT_ARCH(i386:x86-64)
 ENTRY(phys_startup_64)
 jiffies_64 = jiffies;
+_proxy_pda = 0;
 PHDRS {
 	text PT_LOAD FLAGS(5);	/* R_E */
 	data PT_LOAD FLAGS(7);	/* RWE */