Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

arch/ia64/Kconfig

@@ -63,8 +63,6 @@ config IA64_GENERIC
 	select ACPI
 	select NUMA
 	select ACPI_NUMA
-	select VIRTUAL_MEM_MAP
-	select DISCONTIGMEM
 	help
 	  This selects the system type of your hardware.  A "generic" kernel
 	  will run on any supported IA-64 system.  However, if you configure
@@ -176,40 +174,6 @@ config IA64_L1_CACHE_SHIFT
 	default "6" if ITANIUM
 
 # align cache-sensitive data to 64 bytes
-config NUMA
-	bool "NUMA support"
-	depends on !IA64_HP_SIM
-	default y if IA64_SGI_SN2
-	select ACPI_NUMA
-	help
-	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
-	  Access).  This option is for configuring high-end multiprocessor
-	  server systems.  If in doubt, say N.
-
-config VIRTUAL_MEM_MAP
-	bool "Virtual mem map"
-	default y if !IA64_HP_SIM
-	help
-	  Say Y to compile the kernel with support for a virtual mem map.
-	  This code also only takes effect if a memory hole of greater than
-	  1 Gb is found during boot.  You must turn this option on if you
-	  require the DISCONTIGMEM option for your machine. If you are
-	  unsure, say Y.
-
-config HOLES_IN_ZONE
-	bool
-	default y if VIRTUAL_MEM_MAP
-
-config ARCH_DISCONTIGMEM_ENABLE
-	bool "Discontiguous memory support"
-	depends on (IA64_DIG || IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) && NUMA && VIRTUAL_MEM_MAP
-	default y if (IA64_SGI_SN2 || IA64_GENERIC) && NUMA
-	help
-	  Say Y to support efficient handling of discontiguous physical memory,
-	  for architectures which are either NUMA (Non-Uniform Memory Access)
-	  or have huge holes in the physical address space for other reasons.
-	  See <file:Documentation/vm/numa> for more.
-
 config IA64_CYCLONE
 	bool "Cyclone (EXA) Time Source support"
 	help
@@ -232,8 +196,10 @@ config IA64_SGI_SN_XP
 	  based on a network adapter and DMA messaging.
 
 config FORCE_MAX_ZONEORDER
-	int
+	int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
-	default "18"
+	range 11 17  if !HUGETLB_PAGE
+	default "17" if HUGETLB_PAGE
+	default "11"
 
 config SMP
 	bool "Symmetric multi-processing support"
@@ -254,8 +220,8 @@ config SMP
 	  If you don't know what to do here, say N.
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-512)"
+	int "Maximum number of CPUs (2-1024)"
-	range 2 512
+	range 2 1024
 	depends on SMP
 	default "64"
 	help
@@ -298,6 +264,58 @@ config PREEMPT
 
 source "mm/Kconfig"
 
+config ARCH_SELECT_MEMORY_MODEL
+	def_bool y
+
+config ARCH_DISCONTIGMEM_ENABLE
+	def_bool y
+	help
+	  Say Y to support efficient handling of discontiguous physical memory,
+	  for architectures which are either NUMA (Non-Uniform Memory Access)
+	  or have huge holes in the physical address space for other reasons.
+ 	  See <file:Documentation/vm/numa> for more.
+
+config ARCH_FLATMEM_ENABLE
+	def_bool y
+
+config ARCH_SPARSEMEM_ENABLE
+	def_bool y
+	depends on ARCH_DISCONTIGMEM_ENABLE
+
+config ARCH_DISCONTIGMEM_DEFAULT
+	def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
+	depends on ARCH_DISCONTIGMEM_ENABLE
+
+config NUMA
+	bool "NUMA support"
+	depends on !IA64_HP_SIM && !FLATMEM
+	default y if IA64_SGI_SN2
+	help
+	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
+	  Access).  This option is for configuring high-end multiprocessor
+	  server systems.  If in doubt, say N.
+
+# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
+# VIRTUAL_MEM_MAP has been retained for historical reasons.
+config VIRTUAL_MEM_MAP
+	bool "Virtual mem map"
+	depends on !SPARSEMEM
+	default y if !IA64_HP_SIM
+	help
+	  Say Y to compile the kernel with support for a virtual mem map.
+	  This code also only takes effect if a memory hole of greater than
+	  1 Gb is found during boot.  You must turn this option on if you
+	  require the DISCONTIGMEM option for your machine. If you are
+	  unsure, say Y.
+
+config HOLES_IN_ZONE
+	bool
+	default y if VIRTUAL_MEM_MAP
+
+config HAVE_ARCH_EARLY_PFN_TO_NID
+	def_bool y
+	depends on NEED_MULTIPLE_NODES
+
 config IA32_SUPPORT
 	bool "Support for Linux/x86 binaries"
 	help

arch/ia64/configs/bigsur_defconfig

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.10-rc2
+# Linux kernel version: 2.6.14-rc1
-# Mon Nov 29 13:27:48 2004
+# Wed Sep 14 15:18:49 2005
 #
 
 #
@@ -10,34 +10,40 @@
 CONFIG_EXPERIMENTAL=y
 CONFIG_CLEAN_COMPILE=y
 CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
 
 #
 # General setup
 #
 CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 CONFIG_SYSCTL=y
 # CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=16
 CONFIG_HOTPLUG=y
 CONFIG_KOBJECT_UEVENT=y
 # CONFIG_IKCONFIG is not set
+# CONFIG_CPUSETS is not set
+CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_EMBEDDED is not set
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
 CONFIG_EPOLL=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_SHMEM=y
 CONFIG_CC_ALIGN_FUNCTIONS=0
 CONFIG_CC_ALIGN_LABELS=0
 CONFIG_CC_ALIGN_LOOPS=0
 CONFIG_CC_ALIGN_JUMPS=0
 # CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
 
 #
 # Loadable module support
@@ -58,12 +64,15 @@ CONFIG_IA64=y
 CONFIG_64BIT=y
 CONFIG_MMU=y
 CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_TIME_INTERPOLATION=y
 CONFIG_EFI=y
 CONFIG_GENERIC_IOMAP=y
+CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
 # CONFIG_IA64_GENERIC is not set
 CONFIG_IA64_DIG=y
 # CONFIG_IA64_HP_ZX1 is not set
+# CONFIG_IA64_HP_ZX1_SWIOTLB is not set
 # CONFIG_IA64_SGI_SN2 is not set
 # CONFIG_IA64_HP_SIM is not set
 CONFIG_ITANIUM=y
@@ -72,17 +81,30 @@ CONFIG_ITANIUM=y
 # CONFIG_IA64_PAGE_SIZE_8KB is not set
 CONFIG_IA64_PAGE_SIZE_16KB=y
 # CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
 CONFIG_IA64_BRL_EMU=y
 CONFIG_IA64_L1_CACHE_SHIFT=6
 # CONFIG_NUMA is not set
 # CONFIG_VIRTUAL_MEM_MAP is not set
 # CONFIG_IA64_CYCLONE is not set
 CONFIG_IOSAPIC=y
+# CONFIG_IA64_SGI_SN_XP is not set
 CONFIG_FORCE_MAX_ZONEORDER=18
 CONFIG_SMP=y
 CONFIG_NR_CPUS=2
 # CONFIG_HOTPLUG_CPU is not set
+# CONFIG_SCHED_SMT is not set
 CONFIG_PREEMPT=y
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
 CONFIG_HAVE_DEC_LOCK=y
 CONFIG_IA32_SUPPORT=y
 CONFIG_COMPAT=y
@@ -95,6 +117,7 @@ CONFIG_IA64_PALINFO=y
 #
 CONFIG_EFI_VARS=y
 CONFIG_EFI_PCDP=y
+# CONFIG_DELL_RBU is not set
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
 
@@ -102,18 +125,26 @@ CONFIG_BINFMT_MISC=m
 # Power management and ACPI
 #
 CONFIG_PM=y
-CONFIG_ACPI=y
+# CONFIG_PM_DEBUG is not set
 
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
+CONFIG_ACPI=y
 CONFIG_ACPI_BUTTON=m
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_PROCESSOR=m
 CONFIG_ACPI_THERMAL=m
+CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
 CONFIG_ACPI_POWER=y
 CONFIG_ACPI_SYSTEM=y
+# CONFIG_ACPI_CONTAINER is not set
+
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
 
 #
 # Bus options (PCI, PCMCIA)
@@ -122,7 +153,7 @@ CONFIG_PCI=y
 CONFIG_PCI_DOMAINS=y
 # CONFIG_PCI_MSI is not set
 CONFIG_PCI_LEGACY_PROC=y
-CONFIG_PCI_NAMES=y
+# CONFIG_PCI_DEBUG is not set
 
 #
 # PCI Hotplug Support
@@ -135,8 +166,70 @@ CONFIG_PCI_NAMES=y
 # CONFIG_PCCARD is not set
 
 #
-# PC-card bridges
+# Networking
 #
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_MMAP=y
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_BIC=y
+# CONFIG_IPV6 is not set
+# CONFIG_NETFILTER is not set
+
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_NET_DIVERT is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+# CONFIG_NET_CLS_ROUTE is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_NETFILTER_NETLINK is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_IEEE80211 is not set
 
 #
 # Device Drivers
@@ -150,6 +243,11 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_FW_LOADER is not set
 # CONFIG_DEBUG_DRIVER is not set
 
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
 #
 # Memory Technology Devices (MTD)
 #
@@ -163,7 +261,13 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 #
 # Plug and Play support
 #
-# CONFIG_PNP is not set
+CONFIG_PNP=y
+# CONFIG_PNP_DEBUG is not set
+
+#
+# Protocols
+#
+CONFIG_PNPACPI=y
 
 #
 # Block devices
@@ -172,14 +276,15 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_BLK_CPQ_CISS_DA is not set
 # CONFIG_BLK_DEV_DAC960 is not set
 # CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 # CONFIG_BLK_DEV_SX8 is not set
 # CONFIG_BLK_DEV_UB is not set
 CONFIG_BLK_DEV_RAM=m
+CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_CDROM_PKTCDVD is not set
 
 #
@@ -189,6 +294,7 @@ CONFIG_IOSCHED_NOOP=y
 CONFIG_IOSCHED_AS=y
 CONFIG_IOSCHED_DEADLINE=y
 CONFIG_IOSCHED_CFQ=y
+# CONFIG_ATA_OVER_ETH is not set
 
 #
 # ATA/ATAPI/MFM/RLL support
@@ -211,7 +317,8 @@ CONFIG_BLK_DEV_IDEFLOPPY=m
 #
 # IDE chipset support/bugfixes
 #
-CONFIG_IDE_GENERIC=m
+# CONFIG_IDE_GENERIC is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
 CONFIG_BLK_DEV_IDEPCI=y
 CONFIG_IDEPCI_SHARE_IRQ=y
 # CONFIG_BLK_DEV_OFFBOARD is not set
@@ -233,6 +340,7 @@ CONFIG_IDEDMA_PCI_AUTO=y
 # CONFIG_BLK_DEV_HPT366 is not set
 # CONFIG_BLK_DEV_SC1200 is not set
 CONFIG_BLK_DEV_PIIX=m
+# CONFIG_BLK_DEV_IT821X is not set
 # CONFIG_BLK_DEV_NS87415 is not set
 # CONFIG_BLK_DEV_PDC202XX_OLD is not set
 # CONFIG_BLK_DEV_PDC202XX_NEW is not set
@@ -250,6 +358,7 @@ CONFIG_IDEDMA_AUTO=y
 #
 # SCSI device support
 #
+# CONFIG_RAID_ATTRS is not set
 CONFIG_SCSI=y
 CONFIG_SCSI_PROC_FS=y
 
@@ -261,6 +370,7 @@ CONFIG_BLK_DEV_SD=y
 # CONFIG_CHR_DEV_OSST is not set
 # CONFIG_BLK_DEV_SR is not set
 # CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_SCH is not set
 
 #
 # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
@@ -274,6 +384,8 @@ CONFIG_SCSI_LOGGING=y
 #
 CONFIG_SCSI_SPI_ATTRS=m
 # CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_ATTRS is not set
 
 #
 # SCSI low-level drivers
@@ -288,18 +400,13 @@ CONFIG_SCSI_SPI_ATTRS=m
 # CONFIG_MEGARAID_NEWGEN is not set
 # CONFIG_MEGARAID_LEGACY is not set
 # CONFIG_SCSI_SATA is not set
-# CONFIG_SCSI_BUSLOGIC is not set
 # CONFIG_SCSI_DMX3191D is not set
-# CONFIG_SCSI_EATA is not set
-# CONFIG_SCSI_EATA_PIO is not set
 # CONFIG_SCSI_FUTURE_DOMAIN is not set
-# CONFIG_SCSI_GDTH is not set
 # CONFIG_SCSI_IPS is not set
 # CONFIG_SCSI_INITIO is not set
 # CONFIG_SCSI_INIA100 is not set
 # CONFIG_SCSI_SYM53C8XX_2 is not set
 # CONFIG_SCSI_IPR is not set
-# CONFIG_SCSI_QLOGIC_ISP is not set
 # CONFIG_SCSI_QLOGIC_FC is not set
 CONFIG_SCSI_QLOGIC_1280=y
 # CONFIG_SCSI_QLOGIC_1280_1040 is not set
@@ -309,7 +416,8 @@ CONFIG_SCSI_QLA2XXX=y
 # CONFIG_SCSI_QLA2300 is not set
 # CONFIG_SCSI_QLA2322 is not set
 # CONFIG_SCSI_QLA6312 is not set
-# CONFIG_SCSI_QLA6322 is not set
+# CONFIG_SCSI_QLA24XX is not set
+# CONFIG_SCSI_LPFC is not set
 # CONFIG_SCSI_DC395x is not set
 # CONFIG_SCSI_DC390T is not set
 # CONFIG_SCSI_DEBUG is not set
@@ -332,11 +440,14 @@ CONFIG_DM_CRYPT=m
 CONFIG_DM_SNAPSHOT=m
 CONFIG_DM_MIRROR=m
 CONFIG_DM_ZERO=m
+# CONFIG_DM_MULTIPATH is not set
 
 #
 # Fusion MPT device support
 #
 # CONFIG_FUSION is not set
+# CONFIG_FUSION_SPI is not set
+# CONFIG_FUSION_FC is not set
 
 #
 # IEEE 1394 (FireWire) support
@@ -349,78 +460,25 @@ CONFIG_DM_ZERO=m
 # CONFIG_I2O is not set
 
 #
-# Networking support
+# Network device support
 #
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-CONFIG_PACKET_MMAP=y
-# CONFIG_NETLINK_DEV is not set
-CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-# CONFIG_IP_PNP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_IP_TCPDIAG=y
-# CONFIG_IP_TCPDIAG_IPV6 is not set
-# CONFIG_IPV6 is not set
-# CONFIG_NETFILTER is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-# CONFIG_NET_CLS_ROUTE is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
 CONFIG_NETDEVICES=y
 CONFIG_DUMMY=y
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_NET_SB1000 is not set
 
 #
 # ARCnet devices
 #
 # CONFIG_ARCNET is not set
 
+#
+# PHY device support
+#
+# CONFIG_PHYLIB is not set
+
 #
 # Ethernet (10 or 100Mbit)
 #
@@ -443,7 +501,6 @@ CONFIG_NET_PCI=y
 # CONFIG_FORCEDETH is not set
 # CONFIG_DGRS is not set
 CONFIG_EEPRO100=y
-# CONFIG_EEPRO100_PIO is not set
 # CONFIG_E100 is not set
 # CONFIG_FEALNX is not set
 # CONFIG_NATSEMI is not set
@@ -465,13 +522,17 @@ CONFIG_EEPRO100=y
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
 # CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
+# CONFIG_SKGE is not set
 # CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
 # CONFIG_TIGON3 is not set
+# CONFIG_BNX2 is not set
 
 #
 # Ethernet (10000 Mbit)
 #
+# CONFIG_CHELSIO_T1 is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 
@@ -496,6 +557,8 @@ CONFIG_EEPRO100=y
 # CONFIG_NET_FC is not set
 # CONFIG_SHAPER is not set
 # CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
 
 #
 # ISDN subsystem
@@ -524,18 +587,6 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 CONFIG_INPUT_EVDEV=y
 # CONFIG_INPUT_EVBUG is not set
 
-#
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-CONFIG_SERIO=y
-CONFIG_SERIO_I8042=y
-CONFIG_SERIO_SERPORT=y
-# CONFIG_SERIO_CT82C710 is not set
-# CONFIG_SERIO_PCIPS2 is not set
-# CONFIG_SERIO_RAW is not set
-
 #
 # Input Device Drivers
 #
@@ -553,6 +604,17 @@ CONFIG_MOUSE_PS2=y
 # CONFIG_INPUT_TOUCHSCREEN is not set
 # CONFIG_INPUT_MISC is not set
 
+#
+# Hardware I/O ports
+#
+CONFIG_SERIO=y
+CONFIG_SERIO_I8042=y
+CONFIG_SERIO_SERPORT=y
+# CONFIG_SERIO_PCIPS2 is not set
+CONFIG_SERIO_LIBPS2=y
+# CONFIG_SERIO_RAW is not set
+# CONFIG_GAMEPORT is not set
+
 #
 # Character devices
 #
@@ -571,7 +633,6 @@ CONFIG_SERIAL_8250_NR_UARTS=4
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
 # CONFIG_SERIAL_8250_DETECT_IRQ is not set
-# CONFIG_SERIAL_8250_MULTIPORT is not set
 # CONFIG_SERIAL_8250_RSA is not set
 
 #
@@ -579,6 +640,7 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
 #
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
@@ -603,14 +665,22 @@ CONFIG_EFI_RTC=y
 #
 CONFIG_AGP=m
 CONFIG_AGP_I460=m
-CONFIG_DRM=y
+CONFIG_DRM=m
 # CONFIG_DRM_TDFX is not set
 CONFIG_DRM_R128=m
 # CONFIG_DRM_RADEON is not set
 # CONFIG_DRM_MGA is not set
 # CONFIG_DRM_SIS is not set
+# CONFIG_DRM_VIA is not set
+# CONFIG_DRM_SAVAGE is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_HPET is not set
+# CONFIG_HANGCHECK_TIMER is not set
+
+#
+# TPM devices
+#
+# CONFIG_TCG_TPM is not set
 
 #
 # I2C support
@@ -635,7 +705,7 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_I2C_AMD8111 is not set
 # CONFIG_I2C_I801 is not set
 # CONFIG_I2C_I810 is not set
-# CONFIG_I2C_ISA is not set
+# CONFIG_I2C_PIIX4 is not set
 # CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
 # CONFIG_I2C_PROSAVAGE is not set
@@ -651,41 +721,16 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_I2C_PCA_ISA is not set
 
 #
-# Hardware Sensors Chip support
+# Miscellaneous I2C Chip support
-#
-# CONFIG_I2C_SENSOR is not set
-# CONFIG_SENSORS_ADM1021 is not set
-# CONFIG_SENSORS_ADM1025 is not set
-# CONFIG_SENSORS_ADM1031 is not set
-# CONFIG_SENSORS_ASB100 is not set
-# CONFIG_SENSORS_DS1621 is not set
-# CONFIG_SENSORS_FSCHER is not set
-# CONFIG_SENSORS_GL518SM is not set
-# CONFIG_SENSORS_IT87 is not set
-# CONFIG_SENSORS_LM63 is not set
-# CONFIG_SENSORS_LM75 is not set
-# CONFIG_SENSORS_LM77 is not set
-# CONFIG_SENSORS_LM78 is not set
-# CONFIG_SENSORS_LM80 is not set
-# CONFIG_SENSORS_LM83 is not set
-# CONFIG_SENSORS_LM85 is not set
-# CONFIG_SENSORS_LM87 is not set
-# CONFIG_SENSORS_LM90 is not set
-# CONFIG_SENSORS_MAX1619 is not set
-# CONFIG_SENSORS_PC87360 is not set
-# CONFIG_SENSORS_SMSC47M1 is not set
-# CONFIG_SENSORS_VIA686A is not set
-# CONFIG_SENSORS_W83781D is not set
-# CONFIG_SENSORS_W83L785TS is not set
-# CONFIG_SENSORS_W83627HF is not set
-
-#
-# Other I2C Chip support
 #
+# CONFIG_SENSORS_DS1337 is not set
+# CONFIG_SENSORS_DS1374 is not set
 # CONFIG_SENSORS_EEPROM is not set
 # CONFIG_SENSORS_PCF8574 is not set
+# CONFIG_SENSORS_PCA9539 is not set
 # CONFIG_SENSORS_PCF8591 is not set
 # CONFIG_SENSORS_RTC8564 is not set
+# CONFIG_SENSORS_MAX6875 is not set
 # CONFIG_I2C_DEBUG_CORE is not set
 # CONFIG_I2C_DEBUG_ALGO is not set
 # CONFIG_I2C_DEBUG_BUS is not set
@@ -696,10 +741,55 @@ CONFIG_I2C_ALGOBIT=y
 #
 # CONFIG_W1 is not set
 
+#
+# Hardware Monitoring support
+#
+CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_ADM1021 is not set
+# CONFIG_SENSORS_ADM1025 is not set
+# CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1031 is not set
+# CONFIG_SENSORS_ADM9240 is not set
+# CONFIG_SENSORS_ASB100 is not set
+# CONFIG_SENSORS_ATXP1 is not set
+# CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_FSCHER is not set
+# CONFIG_SENSORS_FSCPOS is not set
+# CONFIG_SENSORS_GL518SM is not set
+# CONFIG_SENSORS_GL520SM is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_LM63 is not set
+# CONFIG_SENSORS_LM75 is not set
+# CONFIG_SENSORS_LM77 is not set
+# CONFIG_SENSORS_LM78 is not set
+# CONFIG_SENSORS_LM80 is not set
+# CONFIG_SENSORS_LM83 is not set
+# CONFIG_SENSORS_LM85 is not set
+# CONFIG_SENSORS_LM87 is not set
+# CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_MAX1619 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_SIS5595 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_VIA686A is not set
+# CONFIG_SENSORS_W83781D is not set
+# CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83L785TS is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+
 #
 # Misc devices
 #
 
+#
+# Multimedia Capabilities Port drivers
+#
+
 #
 # Multimedia devices
 #
@@ -752,11 +842,12 @@ CONFIG_SND_OPL3_LIB=m
 # CONFIG_SND_MTPAV is not set
 # CONFIG_SND_SERIAL_U16550 is not set
 # CONFIG_SND_MPU401 is not set
+CONFIG_SND_AC97_CODEC=m
+CONFIG_SND_AC97_BUS=m
 
 #
 # PCI devices
 #
-CONFIG_SND_AC97_CODEC=m
 # CONFIG_SND_ALI5451 is not set
 # CONFIG_SND_ATIIXP is not set
 # CONFIG_SND_ATIIXP_MODEM is not set
@@ -768,6 +859,8 @@ CONFIG_SND_AC97_CODEC=m
 # CONFIG_SND_CS46XX is not set
 CONFIG_SND_CS4281=m
 # CONFIG_SND_EMU10K1 is not set
+# CONFIG_SND_EMU10K1X is not set
+# CONFIG_SND_CA0106 is not set
 # CONFIG_SND_KORG1212 is not set
 # CONFIG_SND_MIXART is not set
 # CONFIG_SND_NM256 is not set
@@ -775,9 +868,10 @@ CONFIG_SND_CS4281=m
 # CONFIG_SND_RME96 is not set
 # CONFIG_SND_RME9652 is not set
 # CONFIG_SND_HDSP is not set
+# CONFIG_SND_HDSPM is not set
 # CONFIG_SND_TRIDENT is not set
 # CONFIG_SND_YMFPCI is not set
-# CONFIG_SND_ALS4000 is not set
+# CONFIG_SND_AD1889 is not set
 # CONFIG_SND_CMIPCI is not set
 # CONFIG_SND_ENS1370 is not set
 # CONFIG_SND_ENS1371 is not set
@@ -791,13 +885,14 @@ CONFIG_SND_CS4281=m
 # CONFIG_SND_INTEL8X0M is not set
 # CONFIG_SND_SONICVIBES is not set
 # CONFIG_SND_VIA82XX is not set
+# CONFIG_SND_VIA82XX_MODEM is not set
 # CONFIG_SND_VX222 is not set
+# CONFIG_SND_HDA_INTEL is not set
 
 #
 # USB devices
 #
 # CONFIG_SND_USB_AUDIO is not set
-# CONFIG_SND_USB_USX2Y is not set
 
 #
 # Open Sound System
@@ -807,6 +902,8 @@ CONFIG_SND_CS4281=m
 #
 # USB support
 #
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
 CONFIG_USB=m
 # CONFIG_USB_DEBUG is not set
 
@@ -818,35 +915,38 @@ CONFIG_USB_DEVICEFS=y
 # CONFIG_USB_DYNAMIC_MINORS is not set
 # CONFIG_USB_SUSPEND is not set
 # CONFIG_USB_OTG is not set
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
 
 #
 # USB Host Controller Drivers
 #
 # CONFIG_USB_EHCI_HCD is not set
+# CONFIG_USB_ISP116X_HCD is not set
 # CONFIG_USB_OHCI_HCD is not set
 CONFIG_USB_UHCI_HCD=m
+# CONFIG_USB_SL811_HCD is not set
 
 #
 # USB Device Class drivers
 #
-CONFIG_USB_AUDIO=m
+# CONFIG_OBSOLETE_OSS_USB_DRIVER is not set
 CONFIG_USB_BLUETOOTH_TTY=m
-CONFIG_USB_MIDI=m
 CONFIG_USB_ACM=m
 CONFIG_USB_PRINTER=m
+
+#
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
+#
 CONFIG_USB_STORAGE=m
 # CONFIG_USB_STORAGE_DEBUG is not set
-# CONFIG_USB_STORAGE_RW_DETECT is not set
 # CONFIG_USB_STORAGE_DATAFAB is not set
 # CONFIG_USB_STORAGE_FREECOM is not set
 # CONFIG_USB_STORAGE_ISD200 is not set
 # CONFIG_USB_STORAGE_DPCM is not set
-# CONFIG_USB_STORAGE_HP8200e is not set
+# CONFIG_USB_STORAGE_USBAT is not set
 # CONFIG_USB_STORAGE_SDDR09 is not set
 # CONFIG_USB_STORAGE_SDDR55 is not set
 # CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ONETOUCH is not set
 
 #
 # USB Input Devices
@@ -863,19 +963,23 @@ CONFIG_USB_HIDDEV=y
 # CONFIG_USB_MOUSE is not set
 # CONFIG_USB_AIPTEK is not set
 # CONFIG_USB_WACOM is not set
+# CONFIG_USB_ACECAD is not set
 # CONFIG_USB_KBTAB is not set
 # CONFIG_USB_POWERMATE is not set
 # CONFIG_USB_MTOUCH is not set
+# CONFIG_USB_ITMTOUCH is not set
 # CONFIG_USB_EGALAX is not set
+# CONFIG_USB_YEALINK is not set
 # CONFIG_USB_XPAD is not set
 # CONFIG_USB_ATI_REMOTE is not set
+# CONFIG_USB_KEYSPAN_REMOTE is not set
+# CONFIG_USB_APPLETOUCH is not set
 
 #
 # USB Imaging devices
 #
 # CONFIG_USB_MDC800 is not set
 # CONFIG_USB_MICROTEK is not set
-# CONFIG_USB_HPUSBSCSI is not set
 
 #
 # USB Multimedia devices
@@ -894,6 +998,7 @@ CONFIG_USB_HIDDEV=y
 # CONFIG_USB_PEGASUS is not set
 # CONFIG_USB_RTL8150 is not set
 # CONFIG_USB_USBNET is not set
+CONFIG_USB_MON=y
 
 #
 # USB port drivers
@@ -909,7 +1014,6 @@ CONFIG_USB_HIDDEV=y
 #
 # CONFIG_USB_EMI62 is not set
 # CONFIG_USB_EMI26 is not set
-# CONFIG_USB_TIGL is not set
 # CONFIG_USB_AUERSWALD is not set
 # CONFIG_USB_RIO500 is not set
 # CONFIG_USB_LEGOTOWER is not set
@@ -918,10 +1022,12 @@ CONFIG_USB_HIDDEV=y
 # CONFIG_USB_CYTHERM is not set
 # CONFIG_USB_PHIDGETKIT is not set
 # CONFIG_USB_PHIDGETSERVO is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_LD is not set
 # CONFIG_USB_TEST is not set
 
 #
-# USB ATM/DSL drivers
+# USB DSL modem support
 #
 
 #
@@ -929,11 +1035,26 @@ CONFIG_USB_HIDDEV=y
 #
 # CONFIG_USB_GADGET is not set
 
+#
+# MMC/SD Card support
+#
+# CONFIG_MMC is not set
+
+#
+# InfiniBand support
+#
+# CONFIG_INFINIBAND is not set
+
+#
+# SN Devices
+#
+
 #
 # File systems
 #
 CONFIG_EXT2_FS=y
 # CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
 CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_XATTR=y
 # CONFIG_EXT3_FS_POSIX_ACL is not set
@@ -945,17 +1066,20 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_JFS_FS is not set
 CONFIG_FS_POSIX_ACL=y
 CONFIG_XFS_FS=y
-# CONFIG_XFS_RT is not set
+CONFIG_XFS_EXPORT=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_SECURITY=y
 CONFIG_XFS_POSIX_ACL=y
+# CONFIG_XFS_RT is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
 # CONFIG_QUOTA is not set
 CONFIG_QUOTACTL=y
 CONFIG_DNOTIFY=y
 CONFIG_AUTOFS_FS=m
 CONFIG_AUTOFS4_FS=m
+# CONFIG_FUSE_FS is not set
 
 #
 # CD-ROM/DVD Filesystems
@@ -982,14 +1106,11 @@ CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
 CONFIG_PROC_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-CONFIG_DEVPTS_FS_XATTR=y
-CONFIG_DEVPTS_FS_SECURITY=y
 CONFIG_TMPFS=y
-# CONFIG_TMPFS_XATTR is not set
 CONFIG_HUGETLBFS=y
 CONFIG_HUGETLB_PAGE=y
 CONFIG_RAMFS=y
+# CONFIG_RELAYFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -1013,15 +1134,18 @@ CONFIG_RAMFS=y
 #
 CONFIG_NFS_FS=m
 CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
 CONFIG_NFS_V4=y
 # CONFIG_NFS_DIRECTIO is not set
 CONFIG_NFSD=m
 CONFIG_NFSD_V3=y
+# CONFIG_NFSD_V3_ACL is not set
 CONFIG_NFSD_V4=y
 CONFIG_NFSD_TCP=y
 CONFIG_LOCKD=m
 CONFIG_LOCKD_V4=y
-CONFIG_EXPORTFS=m
+CONFIG_EXPORTFS=y
+CONFIG_NFS_COMMON=y
 CONFIG_SUNRPC=m
 CONFIG_SUNRPC_GSS=m
 CONFIG_RPCSEC_GSS_KRB5=m
@@ -1031,9 +1155,11 @@ CONFIG_CIFS=m
 CONFIG_CIFS_STATS=y
 CONFIG_CIFS_XATTR=y
 CONFIG_CIFS_POSIX=y
+# CONFIG_CIFS_EXPERIMENTAL is not set
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
 
 #
 # Partition Types
@@ -1103,8 +1229,12 @@ CONFIG_NLS_UTF8=m
 # Library routines
 #
 # CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
 CONFIG_CRC32=y
 # CONFIG_LIBCRC32C is not set
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_PENDING_IRQ=y
 
 #
 # Profiling support
@@ -1115,14 +1245,20 @@ CONFIG_OPROFILE=y
 #
 # Kernel hacking
 #
+# CONFIG_PRINTK_TIME is not set
 CONFIG_DEBUG_KERNEL=y
 CONFIG_MAGIC_SYSRQ=y
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_DEBUG_SLAB is not set
+CONFIG_DEBUG_PREEMPT=y
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_KOBJECT is not set
 # CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_KPROBES is not set
 # CONFIG_IA64_GRANULE_16MB is not set
 CONFIG_IA64_GRANULE_64MB=y
 # CONFIG_IA64_PRINT_HAZARDS is not set
@@ -1149,6 +1285,7 @@ CONFIG_CRYPTO_MD5=y
 # CONFIG_CRYPTO_SHA256 is not set
 # CONFIG_CRYPTO_SHA512 is not set
 # CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
 CONFIG_CRYPTO_DES=y
 # CONFIG_CRYPTO_BLOWFISH is not set
 # CONFIG_CRYPTO_TWOFISH is not set
@@ -1164,3 +1301,7 @@ CONFIG_CRYPTO_DES=y
 # CONFIG_CRYPTO_MICHAEL_MIC is not set
 # CONFIG_CRYPTO_CRC32C is not set
 # CONFIG_CRYPTO_TEST is not set
+
+#
+# Hardware crypto devices
+#

arch/ia64/configs/tiger_defconfig

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.13-rc6-tiger-smp
+# Linux kernel version: 2.6.14-rc1
-# Wed Aug 17 10:19:51 2005
+# Wed Sep 14 15:17:57 2005
 #
 
 #
@@ -16,6 +16,7 @@ CONFIG_INIT_ENV_ARG_LIMIT=32
 # General setup
 #
 CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -27,6 +28,7 @@ CONFIG_KOBJECT_UEVENT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 # CONFIG_CPUSETS is not set
+CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_EMBEDDED is not set
 CONFIG_KALLSYMS=y
 CONFIG_KALLSYMS_ALL=y
@@ -103,6 +105,7 @@ CONFIG_FLATMEM_MANUAL=y
 # CONFIG_SPARSEMEM_MANUAL is not set
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
 CONFIG_HAVE_DEC_LOCK=y
 CONFIG_IA32_SUPPORT=y
 CONFIG_COMPAT=y
@@ -115,6 +118,7 @@ CONFIG_IA64_PALINFO=y
 #
 CONFIG_EFI_VARS=y
 CONFIG_EFI_PCDP=y
+# CONFIG_DELL_RBU is not set
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
 
@@ -122,20 +126,27 @@ CONFIG_BINFMT_MISC=m
 # Power management and ACPI
 #
 CONFIG_PM=y
-CONFIG_ACPI=y
+# CONFIG_PM_DEBUG is not set
 
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
+CONFIG_ACPI=y
 CONFIG_ACPI_BUTTON=m
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_PROCESSOR=m
-# CONFIG_ACPI_HOTPLUG_CPU is not set
+CONFIG_ACPI_HOTPLUG_CPU=y
 CONFIG_ACPI_THERMAL=m
+CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
 CONFIG_ACPI_POWER=y
 CONFIG_ACPI_SYSTEM=y
-# CONFIG_ACPI_CONTAINER is not set
+CONFIG_ACPI_CONTAINER=m
+
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
 
 #
 # Bus options (PCI, PCMCIA)
@@ -144,7 +155,6 @@ CONFIG_PCI=y
 CONFIG_PCI_DOMAINS=y
 # CONFIG_PCI_MSI is not set
 CONFIG_PCI_LEGACY_PROC=y
-CONFIG_PCI_NAMES=y
 # CONFIG_PCI_DEBUG is not set
 
 #
@@ -188,13 +198,18 @@ CONFIG_SYN_COOKIES=y
 # CONFIG_INET_ESP is not set
 # CONFIG_INET_IPCOMP is not set
 # CONFIG_INET_TUNNEL is not set
-CONFIG_IP_TCPDIAG=y
+CONFIG_INET_DIAG=y
-# CONFIG_IP_TCPDIAG_IPV6 is not set
+CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_BIC=y
 # CONFIG_IPV6 is not set
 # CONFIG_NETFILTER is not set
 
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
 #
 # SCTP Configuration (EXPERIMENTAL)
 #
@@ -218,9 +233,11 @@ CONFIG_TCP_CONG_BIC=y
 # Network testing
 #
 # CONFIG_NET_PKTGEN is not set
+# CONFIG_NETFILTER_NETLINK is not set
 # CONFIG_HAMRADIO is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
+# CONFIG_IEEE80211 is not set
 
 #
 # Device Drivers
@@ -234,6 +251,11 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 CONFIG_FW_LOADER=m
 # CONFIG_DEBUG_DRIVER is not set
 
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
 #
 # Memory Technology Devices (MTD)
 #
@@ -247,7 +269,13 @@ CONFIG_FW_LOADER=m
 #
 # Plug and Play support
 #
-# CONFIG_PNP is not set
+CONFIG_PNP=y
+# CONFIG_PNP_DEBUG is not set
+
+#
+# Protocols
+#
+CONFIG_PNPACPI=y
 
 #
 # Block devices
@@ -266,7 +294,6 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_CDROM_PKTCDVD is not set
 
 #
@@ -299,7 +326,8 @@ CONFIG_BLK_DEV_IDESCSI=m
 #
 # IDE chipset support/bugfixes
 #
-CONFIG_IDE_GENERIC=y
+# CONFIG_IDE_GENERIC is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
 CONFIG_BLK_DEV_IDEPCI=y
 # CONFIG_IDEPCI_SHARE_IRQ is not set
 # CONFIG_BLK_DEV_OFFBOARD is not set
@@ -339,6 +367,7 @@ CONFIG_IDEDMA_AUTO=y
 #
 # SCSI device support
 #
+# CONFIG_RAID_ATTRS is not set
 CONFIG_SCSI=y
 CONFIG_SCSI_PROC_FS=y
 
@@ -366,6 +395,7 @@ CONFIG_CHR_DEV_SG=m
 CONFIG_SCSI_SPI_ATTRS=y
 CONFIG_SCSI_FC_ATTRS=y
 # CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_ATTRS is not set
 
 #
 # SCSI low-level drivers
@@ -454,12 +484,18 @@ CONFIG_DUMMY=m
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_NET_SB1000 is not set
 
 #
 # ARCnet devices
 #
 # CONFIG_ARCNET is not set
 
+#
+# PHY device support
+#
+# CONFIG_PHYLIB is not set
+
 #
 # Ethernet (10 or 100Mbit)
 #
@@ -481,6 +517,7 @@ CONFIG_TULIP=m
 # CONFIG_DE4X5 is not set
 # CONFIG_WINBOND_840 is not set
 # CONFIG_DM9102 is not set
+# CONFIG_ULI526X is not set
 # CONFIG_HP100 is not set
 CONFIG_NET_PCI=y
 # CONFIG_PCNET32 is not set
@@ -512,6 +549,7 @@ CONFIG_E1000=y
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
 # CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
 # CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
@@ -521,6 +559,7 @@ CONFIG_TIGON3=y
 #
 # Ethernet (10000 Mbit)
 #
+# CONFIG_CHELSIO_T1 is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 
@@ -618,6 +657,7 @@ CONFIG_HW_CONSOLE=y
 CONFIG_SERIAL_NONSTANDARD=y
 # CONFIG_ROCKETPORT is not set
 # CONFIG_CYCLADES is not set
+# CONFIG_DIGIEPCA is not set
 # CONFIG_MOXA_SMARTIO is not set
 # CONFIG_ISI is not set
 # CONFIG_SYNCLINKMP is not set
@@ -675,6 +715,7 @@ CONFIG_DRM_RADEON=m
 CONFIG_DRM_MGA=m
 CONFIG_DRM_SIS=m
 # CONFIG_DRM_VIA is not set
+# CONFIG_DRM_SAVAGE is not set
 CONFIG_RAW_DRIVER=m
 CONFIG_HPET=y
 # CONFIG_HPET_RTC_IRQ is not set
@@ -691,7 +732,6 @@ CONFIG_MAX_RAW_DEVS=256
 # I2C support
 #
 # CONFIG_I2C is not set
-# CONFIG_I2C_SENSOR is not set
 
 #
 # Dallas's 1-wire bus
@@ -702,12 +742,17 @@ CONFIG_MAX_RAW_DEVS=256
 # Hardware Monitoring support
 #
 CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
 
 #
 # Misc devices
 #
 
+#
+# Multimedia Capabilities Port drivers
+#
+
 #
 # Multimedia devices
 #
@@ -800,9 +845,11 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_MTOUCH is not set
 # CONFIG_USB_ITMTOUCH is not set
 # CONFIG_USB_EGALAX is not set
+# CONFIG_USB_YEALINK is not set
 # CONFIG_USB_XPAD is not set
 # CONFIG_USB_ATI_REMOTE is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
+# CONFIG_USB_APPLETOUCH is not set
 
 #
 # USB Imaging devices
@@ -902,16 +949,12 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
 CONFIG_REISERFS_FS_SECURITY=y
 # CONFIG_JFS_FS is not set
 CONFIG_FS_POSIX_ACL=y
-
-#
-# XFS support
-#
 CONFIG_XFS_FS=y
 CONFIG_XFS_EXPORT=y
-# CONFIG_XFS_RT is not set
 # CONFIG_XFS_QUOTA is not set
 # CONFIG_XFS_SECURITY is not set
 # CONFIG_XFS_POSIX_ACL is not set
+# CONFIG_XFS_RT is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
 CONFIG_INOTIFY=y
@@ -919,6 +962,7 @@ CONFIG_INOTIFY=y
 CONFIG_DNOTIFY=y
 CONFIG_AUTOFS_FS=y
 CONFIG_AUTOFS4_FS=y
+# CONFIG_FUSE_FS is not set
 
 #
 # CD-ROM/DVD Filesystems
@@ -947,13 +991,11 @@ CONFIG_NTFS_FS=m
 CONFIG_PROC_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_SYSFS=y
-# CONFIG_DEVPTS_FS_XATTR is not set
 CONFIG_TMPFS=y
-CONFIG_TMPFS_XATTR=y
-CONFIG_TMPFS_SECURITY=y
 CONFIG_HUGETLBFS=y
 CONFIG_HUGETLB_PAGE=y
 CONFIG_RAMFS=y
+# CONFIG_RELAYFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -1003,6 +1045,7 @@ CONFIG_CIFS=m
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
 
 #
 # Partition Types
@@ -1072,10 +1115,12 @@ CONFIG_NLS_UTF8=m
 # Library routines
 #
 # CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
 CONFIG_CRC32=y
 # CONFIG_LIBCRC32C is not set
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_PENDING_IRQ=y
 
 #
 # Profiling support
@@ -1089,6 +1134,7 @@ CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_LOG_BUF_SHIFT=20
+CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/ia64/configs/zx1_defconfig

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.13-rc6
+# Linux kernel version: 2.6.14-rc1
-# Wed Aug 17 10:02:43 2005
+# Wed Sep 14 15:15:01 2005
 #
 
 #
@@ -18,6 +18,7 @@ CONFIG_INIT_ENV_ARG_LIMIT=32
 # General setup
 #
 CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 # CONFIG_POSIX_MQUEUE is not set
@@ -29,6 +30,7 @@ CONFIG_HOTPLUG=y
 CONFIG_KOBJECT_UEVENT=y
 # CONFIG_IKCONFIG is not set
 # CONFIG_CPUSETS is not set
+CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_EMBEDDED is not set
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
@@ -103,6 +105,7 @@ CONFIG_FLATMEM_MANUAL=y
 # CONFIG_SPARSEMEM_MANUAL is not set
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
 CONFIG_HAVE_DEC_LOCK=y
 CONFIG_IA32_SUPPORT=y
 CONFIG_COMPAT=y
@@ -115,6 +118,7 @@ CONFIG_IA64_PALINFO=y
 #
 CONFIG_EFI_VARS=y
 CONFIG_EFI_PCDP=y
+# CONFIG_DELL_RBU is not set
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=y
 
@@ -122,20 +126,27 @@ CONFIG_BINFMT_MISC=y
 # Power management and ACPI
 #
 CONFIG_PM=y
-CONFIG_ACPI=y
+# CONFIG_PM_DEBUG is not set
 
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
+CONFIG_ACPI=y
 CONFIG_ACPI_BUTTON=y
 CONFIG_ACPI_FAN=y
 CONFIG_ACPI_PROCESSOR=y
 CONFIG_ACPI_THERMAL=y
+CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
 CONFIG_ACPI_POWER=y
 CONFIG_ACPI_SYSTEM=y
 # CONFIG_ACPI_CONTAINER is not set
 
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
+
 #
 # Bus options (PCI, PCMCIA)
 #
@@ -143,7 +154,6 @@ CONFIG_PCI=y
 CONFIG_PCI_DOMAINS=y
 # CONFIG_PCI_MSI is not set
 CONFIG_PCI_LEGACY_PROC=y
-CONFIG_PCI_NAMES=y
 # CONFIG_PCI_DEBUG is not set
 
 #
@@ -187,8 +197,8 @@ CONFIG_IP_FIB_HASH=y
 # CONFIG_INET_ESP is not set
 # CONFIG_INET_IPCOMP is not set
 # CONFIG_INET_TUNNEL is not set
-# CONFIG_IP_TCPDIAG is not set
+CONFIG_INET_DIAG=y
-# CONFIG_IP_TCPDIAG_IPV6 is not set
+CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_BIC=y
 
@@ -204,13 +214,17 @@ CONFIG_NETFILTER=y
 # IP: Netfilter Configuration
 #
 # CONFIG_IP_NF_CONNTRACK is not set
-# CONFIG_IP_NF_CONNTRACK_MARK is not set
 # CONFIG_IP_NF_QUEUE is not set
 # CONFIG_IP_NF_IPTABLES is not set
 CONFIG_IP_NF_ARPTABLES=y
 # CONFIG_IP_NF_ARPFILTER is not set
 # CONFIG_IP_NF_ARP_MANGLE is not set
 
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
 #
 # SCTP Configuration (EXPERIMENTAL)
 #
@@ -234,9 +248,11 @@ CONFIG_IP_NF_ARPTABLES=y
 # Network testing
 #
 # CONFIG_NET_PKTGEN is not set
+# CONFIG_NETFILTER_NETLINK is not set
 # CONFIG_HAMRADIO is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
+# CONFIG_IEEE80211 is not set
 
 #
 # Device Drivers
@@ -250,6 +266,11 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_FW_LOADER is not set
 # CONFIG_DEBUG_DRIVER is not set
 
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
 #
 # Memory Technology Devices (MTD)
 #
@@ -263,7 +284,13 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 #
 # Plug and Play support
 #
-# CONFIG_PNP is not set
+CONFIG_PNP=y
+# CONFIG_PNP_DEBUG is not set
+
+#
+# Protocols
+#
+CONFIG_PNPACPI=y
 
 #
 # Block devices
@@ -282,7 +309,6 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_CDROM_PKTCDVD is not set
 
 #
@@ -315,7 +341,8 @@ CONFIG_BLK_DEV_IDECD=y
 #
 # IDE chipset support/bugfixes
 #
-CONFIG_IDE_GENERIC=y
+# CONFIG_IDE_GENERIC is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
 CONFIG_BLK_DEV_IDEPCI=y
 CONFIG_IDEPCI_SHARE_IRQ=y
 # CONFIG_BLK_DEV_OFFBOARD is not set
@@ -354,6 +381,7 @@ CONFIG_BLK_DEV_IDEDMA=y
 #
 # SCSI device support
 #
+# CONFIG_RAID_ATTRS is not set
 CONFIG_SCSI=y
 CONFIG_SCSI_PROC_FS=y
 
@@ -381,6 +409,7 @@ CONFIG_SCSI_LOGGING=y
 CONFIG_SCSI_SPI_ATTRS=y
 # CONFIG_SCSI_FC_ATTRS is not set
 # CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_ATTRS is not set
 
 #
 # SCSI low-level drivers
@@ -457,12 +486,18 @@ CONFIG_DUMMY=y
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_NET_SB1000 is not set
 
 #
 # ARCnet devices
 #
 # CONFIG_ARCNET is not set
 
+#
+# PHY device support
+#
+# CONFIG_PHYLIB is not set
+
 #
 # Ethernet (10 or 100Mbit)
 #
@@ -485,6 +520,7 @@ CONFIG_TULIP_NAPI_HW_MITIGATION=y
 # CONFIG_DE4X5 is not set
 # CONFIG_WINBOND_840 is not set
 # CONFIG_DM9102 is not set
+# CONFIG_ULI526X is not set
 # CONFIG_HP100 is not set
 CONFIG_NET_PCI=y
 # CONFIG_PCNET32 is not set
@@ -516,6 +552,7 @@ CONFIG_E1000=y
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
 # CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
 # CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
@@ -525,6 +562,7 @@ CONFIG_TIGON3=y
 #
 # Ethernet (10000 Mbit)
 #
+# CONFIG_CHELSIO_T1 is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 
@@ -650,12 +688,12 @@ CONFIG_AGP=y
 CONFIG_AGP_HP_ZX1=y
 CONFIG_DRM=y
 # CONFIG_DRM_TDFX is not set
-# CONFIG_DRM_GAMMA is not set
 # CONFIG_DRM_R128 is not set
 CONFIG_DRM_RADEON=y
 # CONFIG_DRM_MGA is not set
 # CONFIG_DRM_SIS is not set
 # CONFIG_DRM_VIA is not set
+# CONFIG_DRM_SAVAGE is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_HPET is not set
 # CONFIG_HANGCHECK_TIMER is not set
@@ -689,7 +727,6 @@ CONFIG_I2C_ALGOPCF=y
 # CONFIG_I2C_I801 is not set
 # CONFIG_I2C_I810 is not set
 # CONFIG_I2C_PIIX4 is not set
-# CONFIG_I2C_ISA is not set
 # CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
 # CONFIG_I2C_PROSAVAGE is not set
@@ -703,7 +740,6 @@ CONFIG_I2C_ALGOPCF=y
 # CONFIG_I2C_VIAPRO is not set
 # CONFIG_I2C_VOODOO3 is not set
 # CONFIG_I2C_PCA_ISA is not set
-# CONFIG_I2C_SENSOR is not set
 
 #
 # Miscellaneous I2C Chip support
@@ -730,11 +766,16 @@ CONFIG_I2C_ALGOPCF=y
 # Hardware Monitoring support
 #
 # CONFIG_HWMON is not set
+# CONFIG_HWMON_VID is not set
 
 #
 # Misc devices
 #
 
+#
+# Multimedia Capabilities Port drivers
+#
+
 #
 # Multimedia devices
 #
@@ -806,6 +847,7 @@ CONFIG_FB_RADEON_DEBUG=y
 # CONFIG_FB_KYRO is not set
 # CONFIG_FB_3DFX is not set
 # CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_CYBLA is not set
 # CONFIG_FB_TRIDENT is not set
 # CONFIG_FB_PM3 is not set
 # CONFIG_FB_S1D13XXX is not set
@@ -862,11 +904,12 @@ CONFIG_SND_OPL3_LIB=y
 # CONFIG_SND_MTPAV is not set
 # CONFIG_SND_SERIAL_U16550 is not set
 # CONFIG_SND_MPU401 is not set
+CONFIG_SND_AC97_CODEC=y
+CONFIG_SND_AC97_BUS=y
 
 #
 # PCI devices
 #
-CONFIG_SND_AC97_CODEC=y
 # CONFIG_SND_ALI5451 is not set
 # CONFIG_SND_ATIIXP is not set
 # CONFIG_SND_ATIIXP_MODEM is not set
@@ -890,7 +933,7 @@ CONFIG_SND_AC97_CODEC=y
 # CONFIG_SND_HDSPM is not set
 # CONFIG_SND_TRIDENT is not set
 # CONFIG_SND_YMFPCI is not set
-# CONFIG_SND_ALS4000 is not set
+# CONFIG_SND_AD1889 is not set
 # CONFIG_SND_CMIPCI is not set
 # CONFIG_SND_ENS1370 is not set
 # CONFIG_SND_ENS1371 is not set
@@ -952,9 +995,8 @@ CONFIG_USB_UHCI_HCD=y
 #
 # USB Device Class drivers
 #
-# CONFIG_USB_AUDIO is not set
+# CONFIG_OBSOLETE_OSS_USB_DRIVER is not set
 # CONFIG_USB_BLUETOOTH_TTY is not set
-# CONFIG_USB_MIDI is not set
 # CONFIG_USB_ACM is not set
 # CONFIG_USB_PRINTER is not set
 
@@ -971,6 +1013,7 @@ CONFIG_USB_STORAGE=y
 # CONFIG_USB_STORAGE_SDDR09 is not set
 # CONFIG_USB_STORAGE_SDDR55 is not set
 # CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ONETOUCH is not set
 
 #
 # USB Input Devices
@@ -987,9 +1030,11 @@ CONFIG_USB_HIDDEV=y
 # CONFIG_USB_MTOUCH is not set
 # CONFIG_USB_ITMTOUCH is not set
 # CONFIG_USB_EGALAX is not set
+# CONFIG_USB_YEALINK is not set
 # CONFIG_USB_XPAD is not set
 # CONFIG_USB_ATI_REMOTE is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
+# CONFIG_USB_APPLETOUCH is not set
 
 #
 # USB Imaging devices
@@ -1088,10 +1133,6 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
 # CONFIG_FS_POSIX_ACL is not set
-
-#
-# XFS support
-#
 # CONFIG_XFS_FS is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
@@ -1100,6 +1141,7 @@ CONFIG_FS_MBCACHE=y
 CONFIG_DNOTIFY=y
 CONFIG_AUTOFS_FS=y
 # CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
 
 #
 # CD-ROM/DVD Filesystems
@@ -1126,13 +1168,11 @@ CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
 CONFIG_PROC_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_SYSFS=y
-# CONFIG_DEVPTS_FS_XATTR is not set
 CONFIG_TMPFS=y
-CONFIG_TMPFS_XATTR=y
-CONFIG_TMPFS_SECURITY=y
 CONFIG_HUGETLBFS=y
 CONFIG_HUGETLB_PAGE=y
 CONFIG_RAMFS=y
+# CONFIG_RELAYFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -1177,6 +1217,7 @@ CONFIG_RPCSEC_GSS_KRB5=y
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
 
 #
 # Partition Types
@@ -1246,10 +1287,12 @@ CONFIG_NLS_UTF8=y
 # Library routines
 #
 # CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
 CONFIG_CRC32=y
 # CONFIG_LIBCRC32C is not set
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_PENDING_IRQ=y
 
 #
 # Profiling support
@@ -1263,6 +1306,7 @@ CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_LOG_BUF_SHIFT=17
+CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/ia64/defconfig

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.12
+# Linux kernel version: 2.6.14-rc1
-# Tue Jun 21 11:30:42 2005
+# Wed Sep 14 15:13:03 2005
 #
 
 #
@@ -16,6 +16,7 @@ CONFIG_INIT_ENV_ARG_LIMIT=32
 # General setup
 #
 CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
@@ -27,6 +28,7 @@ CONFIG_KOBJECT_UEVENT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 # CONFIG_CPUSETS is not set
+CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_EMBEDDED is not set
 CONFIG_KALLSYMS=y
 CONFIG_KALLSYMS_ALL=y
@@ -80,6 +82,10 @@ CONFIG_MCKINLEY=y
 # CONFIG_IA64_PAGE_SIZE_8KB is not set
 CONFIG_IA64_PAGE_SIZE_16KB=y
 # CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
 CONFIG_IA64_L1_CACHE_SHIFT=7
 CONFIG_NUMA=y
 CONFIG_VIRTUAL_MEM_MAP=y
@@ -87,12 +93,21 @@ CONFIG_HOLES_IN_ZONE=y
 CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
 CONFIG_IA64_CYCLONE=y
 CONFIG_IOSAPIC=y
+# CONFIG_IA64_SGI_SN_XP is not set
 CONFIG_FORCE_MAX_ZONEORDER=18
 CONFIG_SMP=y
 CONFIG_NR_CPUS=512
 CONFIG_HOTPLUG_CPU=y
 # CONFIG_SCHED_SMT is not set
 # CONFIG_PREEMPT is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+# CONFIG_FLATMEM_MANUAL is not set
+CONFIG_DISCONTIGMEM_MANUAL=y
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_DISCONTIGMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+CONFIG_NEED_MULTIPLE_NODES=y
+# CONFIG_SPARSEMEM_STATIC is not set
 CONFIG_HAVE_DEC_LOCK=y
 CONFIG_IA32_SUPPORT=y
 CONFIG_COMPAT=y
@@ -105,6 +120,7 @@ CONFIG_IA64_PALINFO=y
 #
 CONFIG_EFI_VARS=y
 CONFIG_EFI_PCDP=y
+# CONFIG_DELL_RBU is not set
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
 
@@ -112,22 +128,29 @@ CONFIG_BINFMT_MISC=m
 # Power management and ACPI
 #
 CONFIG_PM=y
-CONFIG_ACPI=y
+# CONFIG_PM_DEBUG is not set
 
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
+CONFIG_ACPI=y
 CONFIG_ACPI_BUTTON=m
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_PROCESSOR=m
 CONFIG_ACPI_HOTPLUG_CPU=y
 CONFIG_ACPI_THERMAL=m
 CONFIG_ACPI_NUMA=y
+CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
 CONFIG_ACPI_POWER=y
 CONFIG_ACPI_SYSTEM=y
 CONFIG_ACPI_CONTAINER=m
 
+#
+# CPU Frequency scaling
+#
+# CONFIG_CPU_FREQ is not set
+
 #
 # Bus options (PCI, PCMCIA)
 #
@@ -135,7 +158,6 @@ CONFIG_PCI=y
 CONFIG_PCI_DOMAINS=y
 # CONFIG_PCI_MSI is not set
 CONFIG_PCI_LEGACY_PROC=y
-CONFIG_PCI_NAMES=y
 # CONFIG_PCI_DEBUG is not set
 
 #
@@ -147,12 +169,80 @@ CONFIG_HOTPLUG_PCI_ACPI=m
 # CONFIG_HOTPLUG_PCI_ACPI_IBM is not set
 # CONFIG_HOTPLUG_PCI_CPCI is not set
 # CONFIG_HOTPLUG_PCI_SHPC is not set
+# CONFIG_HOTPLUG_PCI_SGI is not set
 
 #
 # PCCARD (PCMCIA/CardBus) support
 #
 # CONFIG_PCCARD is not set
 
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_PNP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_IP_MROUTE is not set
+CONFIG_ARPD=y
+CONFIG_SYN_COOKIES=y
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_BIC=y
+# CONFIG_IPV6 is not set
+# CONFIG_NETFILTER is not set
+
+#
+# DCCP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_DCCP is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_NET_DIVERT is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+# CONFIG_NET_CLS_ROUTE is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_NETFILTER_NETLINK is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_IEEE80211 is not set
+
 #
 # Device Drivers
 #
@@ -162,9 +252,14 @@ CONFIG_HOTPLUG_PCI_ACPI=m
 #
 CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
-# CONFIG_FW_LOADER is not set
+CONFIG_FW_LOADER=m
 # CONFIG_DEBUG_DRIVER is not set
 
+#
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
 #
 # Memory Technology Devices (MTD)
 #
@@ -178,7 +273,13 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 #
 # Plug and Play support
 #
-# CONFIG_PNP is not set
+CONFIG_PNP=y
+# CONFIG_PNP_DEBUG is not set
+
+#
+# Protocols
+#
+CONFIG_PNPACPI=y
 
 #
 # Block devices
@@ -197,7 +298,6 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE=""
 # CONFIG_CDROM_PKTCDVD is not set
 
 #
@@ -230,7 +330,8 @@ CONFIG_BLK_DEV_IDESCSI=m
 #
 # IDE chipset support/bugfixes
 #
-CONFIG_IDE_GENERIC=y
+# CONFIG_IDE_GENERIC is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
 CONFIG_BLK_DEV_IDEPCI=y
 # CONFIG_IDEPCI_SHARE_IRQ is not set
 # CONFIG_BLK_DEV_OFFBOARD is not set
@@ -252,6 +353,7 @@ CONFIG_BLK_DEV_CMD64X=y
 # CONFIG_BLK_DEV_HPT366 is not set
 # CONFIG_BLK_DEV_SC1200 is not set
 CONFIG_BLK_DEV_PIIX=y
+# CONFIG_BLK_DEV_IT821X is not set
 # CONFIG_BLK_DEV_NS87415 is not set
 # CONFIG_BLK_DEV_PDC202XX_OLD is not set
 # CONFIG_BLK_DEV_PDC202XX_NEW is not set
@@ -270,6 +372,7 @@ CONFIG_IDEDMA_AUTO=y
 #
 # SCSI device support
 #
+# CONFIG_RAID_ATTRS is not set
 CONFIG_SCSI=y
 CONFIG_SCSI_PROC_FS=y
 
@@ -297,6 +400,7 @@ CONFIG_CHR_DEV_SG=m
 CONFIG_SCSI_SPI_ATTRS=y
 CONFIG_SCSI_FC_ATTRS=y
 # CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_ATTRS is not set
 
 #
 # SCSI low-level drivers
@@ -314,6 +418,7 @@ CONFIG_SCSI_SATA=y
 # CONFIG_SCSI_SATA_AHCI is not set
 # CONFIG_SCSI_SATA_SVW is not set
 # CONFIG_SCSI_ATA_PIIX is not set
+# CONFIG_SCSI_SATA_MV is not set
 # CONFIG_SCSI_SATA_NV is not set
 # CONFIG_SCSI_SATA_PROMISE is not set
 # CONFIG_SCSI_SATA_QSTOR is not set
@@ -335,7 +440,6 @@ CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
 # CONFIG_SCSI_SYM53C8XX_IOMAPPED is not set
 # CONFIG_SCSI_IPR is not set
 # CONFIG_SCSI_QLOGIC_FC is not set
-# CONFIG_SCSI_QLOGIC_FC_FIRMWARE is not set
 CONFIG_SCSI_QLOGIC_1280=y
 # CONFIG_SCSI_QLOGIC_1280_1040 is not set
 CONFIG_SCSI_QLA2XXX=y
@@ -344,6 +448,7 @@ CONFIG_SCSI_QLA22XX=m
 CONFIG_SCSI_QLA2300=m
 CONFIG_SCSI_QLA2322=m
 # CONFIG_SCSI_QLA6312 is not set
+# CONFIG_SCSI_QLA24XX is not set
 # CONFIG_SCSI_LPFC is not set
 # CONFIG_SCSI_DC395x is not set
 # CONFIG_SCSI_DC390T is not set
@@ -390,80 +495,25 @@ CONFIG_FUSION_MAX_SGE=128
 # CONFIG_I2O is not set
 
 #
-# Networking support
+# Network device support
 #
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
-CONFIG_UNIX=y
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-# CONFIG_IP_ADVANCED_ROUTER is not set
-# CONFIG_IP_PNP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE is not set
-# CONFIG_IP_MROUTE is not set
-CONFIG_ARPD=y
-CONFIG_SYN_COOKIES=y
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_IP_TCPDIAG=y
-# CONFIG_IP_TCPDIAG_IPV6 is not set
-# CONFIG_IPV6 is not set
-# CONFIG_NETFILTER is not set
-
-#
-# SCTP Configuration (EXPERIMENTAL)
-#
-# CONFIG_IP_SCTP is not set
-# CONFIG_ATM is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_NET_DIVERT is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
-# CONFIG_NET_SCHED is not set
-# CONFIG_NET_CLS_ROUTE is not set
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-CONFIG_NETPOLL=y
-# CONFIG_NETPOLL_RX is not set
-# CONFIG_NETPOLL_TRAP is not set
-CONFIG_NET_POLL_CONTROLLER=y
-# CONFIG_HAMRADIO is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
 CONFIG_NETDEVICES=y
 CONFIG_DUMMY=m
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_NET_SB1000 is not set
 
 #
 # ARCnet devices
 #
 # CONFIG_ARCNET is not set
 
+#
+# PHY device support
+#
+# CONFIG_PHYLIB is not set
+
 #
 # Ethernet (10 or 100Mbit)
 #
@@ -485,6 +535,7 @@ CONFIG_TULIP=m
 # CONFIG_DE4X5 is not set
 # CONFIG_WINBOND_840 is not set
 # CONFIG_DM9102 is not set
+# CONFIG_ULI526X is not set
 # CONFIG_HP100 is not set
 CONFIG_NET_PCI=y
 # CONFIG_PCNET32 is not set
@@ -516,6 +567,7 @@ CONFIG_E1000=y
 # CONFIG_HAMACHI is not set
 # CONFIG_YELLOWFIN is not set
 # CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
 # CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
@@ -525,6 +577,7 @@ CONFIG_TIGON3=y
 #
 # Ethernet (10000 Mbit)
 #
+# CONFIG_CHELSIO_T1 is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 
@@ -549,6 +602,10 @@ CONFIG_TIGON3=y
 # CONFIG_NET_FC is not set
 # CONFIG_SHAPER is not set
 CONFIG_NETCONSOLE=y
+CONFIG_NETPOLL=y
+# CONFIG_NETPOLL_RX is not set
+# CONFIG_NETPOLL_TRAP is not set
+CONFIG_NET_POLL_CONTROLLER=y
 
 #
 # ISDN subsystem
@@ -607,9 +664,7 @@ CONFIG_GAMEPORT=m
 # CONFIG_GAMEPORT_NS558 is not set
 # CONFIG_GAMEPORT_L4 is not set
 # CONFIG_GAMEPORT_EMU10K1 is not set
-# CONFIG_GAMEPORT_VORTEX is not set
 # CONFIG_GAMEPORT_FM801 is not set
-# CONFIG_GAMEPORT_CS461X is not set
 
 #
 # Character devices
@@ -620,6 +675,7 @@ CONFIG_HW_CONSOLE=y
 CONFIG_SERIAL_NONSTANDARD=y
 # CONFIG_ROCKETPORT is not set
 # CONFIG_CYCLADES is not set
+# CONFIG_DIGIEPCA is not set
 # CONFIG_MOXA_SMARTIO is not set
 # CONFIG_ISI is not set
 # CONFIG_SYNCLINKMP is not set
@@ -641,7 +697,6 @@ CONFIG_SERIAL_8250_NR_UARTS=6
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
 # CONFIG_SERIAL_8250_DETECT_IRQ is not set
-# CONFIG_SERIAL_8250_MULTIPORT is not set
 # CONFIG_SERIAL_8250_RSA is not set
 
 #
@@ -650,8 +705,8 @@ CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 CONFIG_SERIAL_SGI_L1_CONSOLE=y
-CONFIG_SERIAL_SGI_IOC4=y
 # CONFIG_SERIAL_JSM is not set
+CONFIG_SERIAL_SGI_IOC4=y
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
@@ -684,6 +739,8 @@ CONFIG_DRM_R128=m
 CONFIG_DRM_RADEON=m
 CONFIG_DRM_MGA=m
 CONFIG_DRM_SIS=m
+# CONFIG_DRM_VIA is not set
+# CONFIG_DRM_SAVAGE is not set
 CONFIG_RAW_DRIVER=m
 CONFIG_HPET=y
 # CONFIG_HPET_RTC_IRQ is not set
@@ -707,10 +764,21 @@ CONFIG_MMTIMER=y
 #
 # CONFIG_W1 is not set
 
+#
+# Hardware Monitoring support
+#
+CONFIG_HWMON=y
+# CONFIG_HWMON_VID is not set
+# CONFIG_HWMON_DEBUG_CHIP is not set
+
 #
 # Misc devices
 #
 
+#
+# Multimedia Capabilities Port drivers
+#
+
 #
 # Multimedia devices
 #
@@ -753,6 +821,7 @@ CONFIG_SND_PCM_OSS=m
 CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_SND_VERBOSE_PRINTK=y
 # CONFIG_SND_DEBUG is not set
+CONFIG_SND_GENERIC_DRIVER=y
 
 #
 # Generic devices
@@ -764,11 +833,12 @@ CONFIG_SND_VIRMIDI=m
 CONFIG_SND_MTPAV=m
 CONFIG_SND_SERIAL_U16550=m
 CONFIG_SND_MPU401=m
+CONFIG_SND_AC97_CODEC=m
+CONFIG_SND_AC97_BUS=m
 
 #
 # PCI devices
 #
-CONFIG_SND_AC97_CODEC=m
 # CONFIG_SND_ALI5451 is not set
 # CONFIG_SND_ATIIXP is not set
 # CONFIG_SND_ATIIXP_MODEM is not set
@@ -790,9 +860,10 @@ CONFIG_SND_EMU10K1=m
 # CONFIG_SND_RME96 is not set
 # CONFIG_SND_RME9652 is not set
 # CONFIG_SND_HDSP is not set
+# CONFIG_SND_HDSPM is not set
 # CONFIG_SND_TRIDENT is not set
 # CONFIG_SND_YMFPCI is not set
-# CONFIG_SND_ALS4000 is not set
+# CONFIG_SND_AD1889 is not set
 # CONFIG_SND_CMIPCI is not set
 # CONFIG_SND_ENS1370 is not set
 # CONFIG_SND_ENS1371 is not set
@@ -844,6 +915,7 @@ CONFIG_USB_DEVICEFS=y
 CONFIG_USB_EHCI_HCD=m
 # CONFIG_USB_EHCI_SPLIT_ISO is not set
 # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
+# CONFIG_USB_ISP116X_HCD is not set
 CONFIG_USB_OHCI_HCD=m
 # CONFIG_USB_OHCI_BIG_ENDIAN is not set
 CONFIG_USB_OHCI_LITTLE_ENDIAN=y
@@ -853,9 +925,8 @@ CONFIG_USB_UHCI_HCD=m
 #
 # USB Device Class drivers
 #
-# CONFIG_USB_AUDIO is not set
+# CONFIG_OBSOLETE_OSS_USB_DRIVER is not set
 # CONFIG_USB_BLUETOOTH_TTY is not set
-# CONFIG_USB_MIDI is not set
 # CONFIG_USB_ACM is not set
 # CONFIG_USB_PRINTER is not set
 
@@ -888,12 +959,17 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_MOUSE is not set
 # CONFIG_USB_AIPTEK is not set
 # CONFIG_USB_WACOM is not set
+# CONFIG_USB_ACECAD is not set
 # CONFIG_USB_KBTAB is not set
 # CONFIG_USB_POWERMATE is not set
 # CONFIG_USB_MTOUCH is not set
+# CONFIG_USB_ITMTOUCH is not set
 # CONFIG_USB_EGALAX is not set
+# CONFIG_USB_YEALINK is not set
 # CONFIG_USB_XPAD is not set
 # CONFIG_USB_ATI_REMOTE is not set
+# CONFIG_USB_KEYSPAN_REMOTE is not set
+# CONFIG_USB_APPLETOUCH is not set
 
 #
 # USB Imaging devices
@@ -918,7 +994,7 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_PEGASUS is not set
 # CONFIG_USB_RTL8150 is not set
 # CONFIG_USB_USBNET is not set
-CONFIG_USB_MON=m
+CONFIG_USB_MON=y
 
 #
 # USB port drivers
@@ -944,10 +1020,11 @@ CONFIG_USB_MON=m
 # CONFIG_USB_PHIDGETSERVO is not set
 # CONFIG_USB_IDMOUSE is not set
 # CONFIG_USB_SISUSBVGA is not set
+# CONFIG_USB_LD is not set
 # CONFIG_USB_TEST is not set
 
 #
-# USB ATM/DSL drivers
+# USB DSL modem support
 #
 
 #
@@ -964,6 +1041,8 @@ CONFIG_USB_MON=m
 # InfiniBand support
 #
 CONFIG_INFINIBAND=m
+# CONFIG_INFINIBAND_USER_MAD is not set
+# CONFIG_INFINIBAND_USER_ACCESS is not set
 CONFIG_INFINIBAND_MTHCA=m
 # CONFIG_INFINIBAND_MTHCA_DEBUG is not set
 CONFIG_INFINIBAND_IPOIB=m
@@ -981,6 +1060,7 @@ CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
 CONFIG_EXT2_FS_SECURITY=y
+# CONFIG_EXT2_FS_XIP is not set
 CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_XATTR=y
 CONFIG_EXT3_FS_POSIX_ACL=y
@@ -996,22 +1076,20 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
 CONFIG_REISERFS_FS_SECURITY=y
 # CONFIG_JFS_FS is not set
 CONFIG_FS_POSIX_ACL=y
-
-#
-# XFS support
-#
 CONFIG_XFS_FS=y
 CONFIG_XFS_EXPORT=y
-# CONFIG_XFS_RT is not set
 # CONFIG_XFS_QUOTA is not set
 # CONFIG_XFS_SECURITY is not set
 # CONFIG_XFS_POSIX_ACL is not set
+# CONFIG_XFS_RT is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
+CONFIG_INOTIFY=y
 # CONFIG_QUOTA is not set
 CONFIG_DNOTIFY=y
 CONFIG_AUTOFS_FS=y
 CONFIG_AUTOFS4_FS=y
+# CONFIG_FUSE_FS is not set
 
 #
 # CD-ROM/DVD Filesystems
@@ -1040,14 +1118,11 @@ CONFIG_NTFS_FS=m
 CONFIG_PROC_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_SYSFS=y
-# CONFIG_DEVFS_FS is not set
-# CONFIG_DEVPTS_FS_XATTR is not set
 CONFIG_TMPFS=y
-CONFIG_TMPFS_XATTR=y
-CONFIG_TMPFS_SECURITY=y
 CONFIG_HUGETLBFS=y
 CONFIG_HUGETLB_PAGE=y
 CONFIG_RAMFS=y
+# CONFIG_RELAYFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -1071,15 +1146,18 @@ CONFIG_RAMFS=y
 #
 CONFIG_NFS_FS=m
 CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
 CONFIG_NFS_V4=y
 CONFIG_NFS_DIRECTIO=y
 CONFIG_NFSD=m
 CONFIG_NFSD_V3=y
+# CONFIG_NFSD_V3_ACL is not set
 CONFIG_NFSD_V4=y
 CONFIG_NFSD_TCP=y
 CONFIG_LOCKD=m
 CONFIG_LOCKD_V4=y
 CONFIG_EXPORTFS=y
+CONFIG_NFS_COMMON=y
 CONFIG_SUNRPC=m
 CONFIG_SUNRPC_GSS=m
 CONFIG_RPCSEC_GSS_KRB5=m
@@ -1094,6 +1172,7 @@ CONFIG_CIFS=m
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
 # CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
 
 #
 # Partition Types
@@ -1163,10 +1242,12 @@ CONFIG_NLS_UTF8=m
 # Library routines
 #
 # CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
 CONFIG_CRC32=y
 # CONFIG_LIBCRC32C is not set
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_PENDING_IRQ=y
 
 #
 # HP Simulator drivers
@@ -1187,6 +1268,7 @@ CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_LOG_BUF_SHIFT=20
+CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_SPINLOCK is not set
@@ -1194,6 +1276,7 @@ CONFIG_LOG_BUF_SHIFT=20
 # CONFIG_DEBUG_KOBJECT is not set
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_FS is not set
+# CONFIG_KPROBES is not set
 CONFIG_IA64_GRANULE_16MB=y
 # CONFIG_IA64_GRANULE_64MB is not set
 # CONFIG_IA64_PRINT_HAZARDS is not set
@@ -1215,7 +1298,7 @@ CONFIG_CRYPTO=y
 # CONFIG_CRYPTO_HMAC is not set
 # CONFIG_CRYPTO_NULL is not set
 # CONFIG_CRYPTO_MD4 is not set
-CONFIG_CRYPTO_MD5=m
+CONFIG_CRYPTO_MD5=y
 # CONFIG_CRYPTO_SHA1 is not set
 # CONFIG_CRYPTO_SHA256 is not set
 # CONFIG_CRYPTO_SHA512 is not set

arch/ia64/hp/common/hwsw_iommu.c

@@ -17,7 +17,7 @@
 #include <asm/machvec.h>
 
 /* swiotlb declarations & definitions: */
-extern void swiotlb_init_with_default_size (size_t size);
+extern int swiotlb_late_init_with_default_size (size_t size);
 extern ia64_mv_dma_alloc_coherent	swiotlb_alloc_coherent;
 extern ia64_mv_dma_free_coherent	swiotlb_free_coherent;
 extern ia64_mv_dma_map_single		swiotlb_map_single;
@@ -67,7 +67,16 @@ void
 hwsw_init (void)
 {
 	/* default to a smallish 2MB sw I/O TLB */
-	swiotlb_init_with_default_size (2 * (1<<20));
+	if (swiotlb_late_init_with_default_size (2 * (1<<20)) != 0) {
+#ifdef CONFIG_IA64_GENERIC
+		/* Better to have normal DMA than panic */
+		printk(KERN_WARNING "%s: Failed to initialize software I/O TLB,"
+		       " reverting to hpzx1 platform vector\n", __FUNCTION__);
+		machvec_init("hpzx1");
+#else
+		panic("Unable to initialize software I/O TLB services");
+#endif
+	}
 }
 
 void *

arch/ia64/hp/common/sba_iommu.c

@@ -2028,10 +2028,41 @@ static struct acpi_driver acpi_sba_ioc_driver = {
 static int __init
 sba_init(void)
 {
-	acpi_bus_register_driver(&acpi_sba_ioc_driver);
+	if (!ia64_platform_is("hpzx1") && !ia64_platform_is("hpzx1_swiotlb"))
-	if (!ioc_list)
 		return 0;
 
+	acpi_bus_register_driver(&acpi_sba_ioc_driver);
+	if (!ioc_list) {
+#ifdef CONFIG_IA64_GENERIC
+		extern int swiotlb_late_init_with_default_size (size_t size);
+
+		/*
+		 * If we didn't find something sba_iommu can claim, we
+		 * need to setup the swiotlb and switch to the dig machvec.
+		 */
+		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
+			panic("Unable to find SBA IOMMU or initialize "
+			      "software I/O TLB: Try machvec=dig boot option");
+		machvec_init("dig");
+#else
+		panic("Unable to find SBA IOMMU: Try a generic or DIG kernel");
+#endif
+		return 0;
+	}
+
+#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_HP_ZX1_SWIOTLB)
+	/*
+	 * hpzx1_swiotlb needs to have a fairly small swiotlb bounce
+	 * buffer setup to support devices with smaller DMA masks than
+	 * sba_iommu can handle.
+	 */
+	if (ia64_platform_is("hpzx1_swiotlb")) {
+		extern void hwsw_init(void);
+
+		hwsw_init();
+	}
+#endif
+
 #ifdef CONFIG_PCI
 	{
 		struct pci_bus *b = NULL;
@@ -2048,18 +2079,6 @@ sba_init(void)
 
 subsys_initcall(sba_init); /* must be initialized after ACPI etc., but before any drivers... */
 
-extern void dig_setup(char**);
-/*
- * MAX_DMA_ADDRESS needs to be setup prior to paging_init to do any good,
- * so we use the platform_setup hook to fix it up.
- */
-void __init
-sba_setup(char **cmdline_p)
-{
-	MAX_DMA_ADDRESS = ~0UL;
-	dig_setup(cmdline_p);
-}
-
 static int __init
 nosbagart(char *str)
 {

arch/ia64/hp/sim/simscsi.c

@@ -205,10 +205,11 @@ simscsi_get_disk_size (int fd)
 	char buf[512];
 
 	/*
-	 * This is a bit kludgey: the simulator doesn't provide a direct way of determining
+	 * This is a bit kludgey: the simulator doesn't provide a
-	 * the disk size, so we do a binary search, assuming a maximum disk size of 4GB.
+	 * direct way of determining the disk size, so we do a binary
+	 * search, assuming a maximum disk size of 128GB.
 	 */
-	for (bit = (4UL << 30)/512; bit != 0; bit >>= 1) {
+	for (bit = (128UL << 30)/512; bit != 0; bit >>= 1) {
 		req.addr = __pa(&buf);
 		req.len = sizeof(buf);
 		ia64_ssc(fd, 1, __pa(&req), ((sectors | bit) - 1)*512, SSC_READ);
@@ -225,8 +226,10 @@ simscsi_readwrite10 (struct scsi_cmnd *sc, int mode)
 {
 	unsigned long offset;
 
-	offset = (  (sc->cmnd[2] << 24) | (sc->cmnd[3] << 16)
+	offset = (((unsigned long)sc->cmnd[2] << 24) 
-		  | (sc->cmnd[4] <<  8) | (sc->cmnd[5] <<  0))*512;
+		| ((unsigned long)sc->cmnd[3] << 16)
+		| ((unsigned long)sc->cmnd[4] <<  8) 
+		| ((unsigned long)sc->cmnd[5] <<  0))*512UL;
 	if (sc->use_sg > 0)
 		simscsi_sg_readwrite(sc, mode, offset);
 	else

arch/ia64/kernel/acpi.c

@@ -838,7 +838,7 @@ EXPORT_SYMBOL(acpi_unmap_lsapic);
 #endif				/* CONFIG_ACPI_HOTPLUG_CPU */
 
 #ifdef CONFIG_ACPI_NUMA
-acpi_status __devinit
+static acpi_status __devinit
 acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -890,7 +890,16 @@ acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
 	map_iosapic_to_node(gsi_base, node);
 	return AE_OK;
 }
-#endif				/* CONFIG_NUMA */
+
+static int __init
+acpi_map_iosapics (void)
+{
+	acpi_get_devices(NULL, acpi_map_iosapic, NULL, NULL);
+	return 0;
+}
+
+fs_initcall(acpi_map_iosapics);
+#endif				/* CONFIG_ACPI_NUMA */
 
 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
 {

arch/ia64/kernel/efi.c

@@ -239,57 +239,30 @@ is_available_memory (efi_memory_desc_t *md)
 	return 0;
 }
 
-/*
+typedef struct kern_memdesc {
- * Trim descriptor MD so its starts at address START_ADDR.  If the descriptor covers
+	u64 attribute;
- * memory that is normally available to the kernel, issue a warning that some memory
+	u64 start;
- * is being ignored.
+	u64 num_pages;
- */
+} kern_memdesc_t;
-static void
-trim_bottom (efi_memory_desc_t *md, u64 start_addr)
-{
-	u64 num_skipped_pages;
 
-	if (md->phys_addr >= start_addr || !md->num_pages)
+static kern_memdesc_t *kern_memmap;
-		return;
-
-	num_skipped_pages = (start_addr - md->phys_addr) >> EFI_PAGE_SHIFT;
-	if (num_skipped_pages > md->num_pages)
-		num_skipped_pages = md->num_pages;
-
-	if (is_available_memory(md))
-		printk(KERN_NOTICE "efi.%s: ignoring %luKB of memory at 0x%lx due to granule hole "
-		       "at 0x%lx\n", __FUNCTION__,
-		       (num_skipped_pages << EFI_PAGE_SHIFT) >> 10,
-		       md->phys_addr, start_addr - IA64_GRANULE_SIZE);
-	/*
-	 * NOTE: Don't set md->phys_addr to START_ADDR because that could cause the memory
-	 * descriptor list to become unsorted.  In such a case, md->num_pages will be
-	 * zero, so the Right Thing will happen.
-	 */
-	md->phys_addr += num_skipped_pages << EFI_PAGE_SHIFT;
-	md->num_pages -= num_skipped_pages;
-}
 
 static void
-trim_top (efi_memory_desc_t *md, u64 end_addr)
+walk (efi_freemem_callback_t callback, void *arg, u64 attr)
 {
-	u64 num_dropped_pages, md_end_addr;
+	kern_memdesc_t *k;
+	u64 start, end, voff;
 
-	md_end_addr = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT);
+	voff = (attr == EFI_MEMORY_WB) ? PAGE_OFFSET : __IA64_UNCACHED_OFFSET;
-
+	for (k = kern_memmap; k->start != ~0UL; k++) {
-	if (md_end_addr <= end_addr || !md->num_pages)
+		if (k->attribute != attr)
-		return;
+			continue;
-
+		start = PAGE_ALIGN(k->start);
-	num_dropped_pages = (md_end_addr - end_addr) >> EFI_PAGE_SHIFT;
+		end = (k->start + (k->num_pages << EFI_PAGE_SHIFT)) & PAGE_MASK;
-	if (num_dropped_pages > md->num_pages)
+		if (start < end)
-		num_dropped_pages = md->num_pages;
+			if ((*callback)(start + voff, end + voff, arg) < 0)
-
+				return;
-	if (is_available_memory(md))
+	}
-		printk(KERN_NOTICE "efi.%s: ignoring %luKB of memory at 0x%lx due to granule hole "
-		       "at 0x%lx\n", __FUNCTION__,
-		       (num_dropped_pages << EFI_PAGE_SHIFT) >> 10,
-		       md->phys_addr, end_addr);
-	md->num_pages -= num_dropped_pages;
 }
 
 /*
@@ -299,148 +272,19 @@ trim_top (efi_memory_desc_t *md, u64 end_addr)
 void
 efi_memmap_walk (efi_freemem_callback_t callback, void *arg)
 {
-	int prev_valid = 0;
+	walk(callback, arg, EFI_MEMORY_WB);
-	struct range {
-		u64 start;
-		u64 end;
-	} prev, curr;
-	void *efi_map_start, *efi_map_end, *p, *q;
-	efi_memory_desc_t *md, *check_md;
-	u64 efi_desc_size, start, end, granule_addr, last_granule_addr, first_non_wb_addr = 0;
-	unsigned long total_mem = 0;
-
-	efi_map_start = __va(ia64_boot_param->efi_memmap);
-	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;
-	efi_desc_size = ia64_boot_param->efi_memdesc_size;
-
-	for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
-		md = p;
-
-		/* skip over non-WB memory descriptors; that's all we're interested in... */
-		if (!(md->attribute & EFI_MEMORY_WB))
-			continue;
-
-		/*
-		 * granule_addr is the base of md's first granule.
-		 * [granule_addr - first_non_wb_addr) is guaranteed to
-		 * be contiguous WB memory.
-		 */
-		granule_addr = GRANULEROUNDDOWN(md->phys_addr);
-		first_non_wb_addr = max(first_non_wb_addr, granule_addr);
-
-		if (first_non_wb_addr < md->phys_addr) {
-			trim_bottom(md, granule_addr + IA64_GRANULE_SIZE);
-			granule_addr = GRANULEROUNDDOWN(md->phys_addr);
-			first_non_wb_addr = max(first_non_wb_addr, granule_addr);
-		}
-
-		for (q = p; q < efi_map_end; q += efi_desc_size) {
-			check_md = q;
-
-			if ((check_md->attribute & EFI_MEMORY_WB) &&
-			    (check_md->phys_addr == first_non_wb_addr))
-				first_non_wb_addr += check_md->num_pages << EFI_PAGE_SHIFT;
-			else
-				break;		/* non-WB or hole */
-		}
-
-		last_granule_addr = GRANULEROUNDDOWN(first_non_wb_addr);
-		if (last_granule_addr < md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT))
-			trim_top(md, last_granule_addr);
-
-		if (is_available_memory(md)) {
-			if (md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) >= max_addr) {
-				if (md->phys_addr >= max_addr)
-					continue;
-				md->num_pages = (max_addr - md->phys_addr) >> EFI_PAGE_SHIFT;
-				first_non_wb_addr = max_addr;
-			}
-
-			if (total_mem >= mem_limit)
-				continue;
-
-			if (total_mem + (md->num_pages << EFI_PAGE_SHIFT) > mem_limit) {
-				unsigned long limit_addr = md->phys_addr;
-
-				limit_addr += mem_limit - total_mem;
-				limit_addr = GRANULEROUNDDOWN(limit_addr);
-
-				if (md->phys_addr > limit_addr)
-					continue;
-
-				md->num_pages = (limit_addr - md->phys_addr) >>
-				                EFI_PAGE_SHIFT;
-				first_non_wb_addr = max_addr = md->phys_addr +
-				              (md->num_pages << EFI_PAGE_SHIFT);
-			}
-			total_mem += (md->num_pages << EFI_PAGE_SHIFT);
-
-			if (md->num_pages == 0)
-				continue;
-
-			curr.start = PAGE_OFFSET + md->phys_addr;
-			curr.end   = curr.start + (md->num_pages << EFI_PAGE_SHIFT);
-
-			if (!prev_valid) {
-				prev = curr;
-				prev_valid = 1;
-			} else {
-				if (curr.start < prev.start)
-					printk(KERN_ERR "Oops: EFI memory table not ordered!\n");
-
-				if (prev.end == curr.start) {
-					/* merge two consecutive memory ranges */
-					prev.end = curr.end;
-				} else {
-					start = PAGE_ALIGN(prev.start);
-					end = prev.end & PAGE_MASK;
-					if ((end > start) && (*callback)(start, end, arg) < 0)
-						return;
-					prev = curr;
-				}
-			}
-		}
-	}
-	if (prev_valid) {
-		start = PAGE_ALIGN(prev.start);
-		end = prev.end & PAGE_MASK;
-		if (end > start)
-			(*callback)(start, end, arg);
-	}
 }
 
 /*
- * Walk the EFI memory map to pull out leftover pages in the lower
+ * Walks the EFI memory map and calls CALLBACK once for each EFI memory descriptor that
- * memory regions which do not end up in the regular memory map and
+ * has memory that is available for uncached allocator.
- * stick them into the uncached allocator
- *
- * The regular walk function is significantly more complex than the
- * uncached walk which means it really doesn't make sense to try and
- * marge the two.
  */
-void __init
+void
-efi_memmap_walk_uc (efi_freemem_callback_t callback)
+efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg)
 {
-	void *efi_map_start, *efi_map_end, *p;
+	walk(callback, arg, EFI_MEMORY_UC);
-	efi_memory_desc_t *md;
-	u64 efi_desc_size, start, end;
-
-	efi_map_start = __va(ia64_boot_param->efi_memmap);
-	efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
-	efi_desc_size = ia64_boot_param->efi_memdesc_size;
-
-	for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
-		md = p;
-		if (md->attribute == EFI_MEMORY_UC) {
-			start = PAGE_ALIGN(md->phys_addr);
-			end = PAGE_ALIGN((md->phys_addr+(md->num_pages << EFI_PAGE_SHIFT)) & PAGE_MASK);
-			if ((*callback)(start, end, NULL) < 0)
-				return;
-		}
-	}
 }
 
-
 /*
  * Look for the PAL_CODE region reported by EFI and maps it using an
  * ITR to enable safe PAL calls in virtual mode.  See IA-64 Processor
@@ -862,3 +706,307 @@ efi_uart_console_only(void)
 	printk(KERN_ERR "Malformed %s value\n", name);
 	return 0;
 }
+
+#define efi_md_size(md)	(md->num_pages << EFI_PAGE_SHIFT)
+
+static inline u64
+kmd_end(kern_memdesc_t *kmd)
+{
+	return (kmd->start + (kmd->num_pages << EFI_PAGE_SHIFT));
+}
+
+static inline u64
+efi_md_end(efi_memory_desc_t *md)
+{
+	return (md->phys_addr + efi_md_size(md));
+}
+
+static inline int
+efi_wb(efi_memory_desc_t *md)
+{
+	return (md->attribute & EFI_MEMORY_WB);
+}
+
+static inline int
+efi_uc(efi_memory_desc_t *md)
+{
+	return (md->attribute & EFI_MEMORY_UC);
+}
+
+/*
+ * Look for the first granule aligned memory descriptor memory
+ * that is big enough to hold EFI memory map. Make sure this
+ * descriptor is atleast granule sized so it does not get trimmed
+ */
+struct kern_memdesc *
+find_memmap_space (void)
+{
+	u64	contig_low=0, contig_high=0;
+	u64	as = 0, ae;
+	void *efi_map_start, *efi_map_end, *p, *q;
+	efi_memory_desc_t *md, *pmd = NULL, *check_md;
+	u64	space_needed, efi_desc_size;
+	unsigned long total_mem = 0;
+
+	efi_map_start = __va(ia64_boot_param->efi_memmap);
+	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;
+	efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+	/*
+	 * Worst case: we need 3 kernel descriptors for each efi descriptor
+	 * (if every entry has a WB part in the middle, and UC head and tail),
+	 * plus one for the end marker.
+	 */
+	space_needed = sizeof(kern_memdesc_t) *
+		(3 * (ia64_boot_param->efi_memmap_size/efi_desc_size) + 1);
+
+	for (p = efi_map_start; p < efi_map_end; pmd = md, p += efi_desc_size) {
+		md = p;
+		if (!efi_wb(md)) {
+			continue;
+		}
+		if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) {
+			contig_low = GRANULEROUNDUP(md->phys_addr);
+			contig_high = efi_md_end(md);
+			for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) {
+				check_md = q;
+				if (!efi_wb(check_md))
+					break;
+				if (contig_high != check_md->phys_addr)
+					break;
+				contig_high = efi_md_end(check_md);
+			}
+			contig_high = GRANULEROUNDDOWN(contig_high);
+		}
+		if (!is_available_memory(md) || md->type == EFI_LOADER_DATA)
+			continue;
+
+		/* Round ends inward to granule boundaries */
+		as = max(contig_low, md->phys_addr);
+		ae = min(contig_high, efi_md_end(md));
+
+		/* keep within max_addr= command line arg */
+		ae = min(ae, max_addr);
+		if (ae <= as)
+			continue;
+
+		/* avoid going over mem= command line arg */
+		if (total_mem + (ae - as) > mem_limit)
+			ae -= total_mem + (ae - as) - mem_limit;
+
+		if (ae <= as)
+			continue;
+
+		if (ae - as > space_needed)
+			break;
+	}
+	if (p >= efi_map_end)
+		panic("Can't allocate space for kernel memory descriptors");
+
+	return __va(as);
+}
+
+/*
+ * Walk the EFI memory map and gather all memory available for kernel
+ * to use.  We can allocate partial granules only if the unavailable
+ * parts exist, and are WB.
+ */
+void
+efi_memmap_init(unsigned long *s, unsigned long *e)
+{
+	struct kern_memdesc *k, *prev = 0;
+	u64	contig_low=0, contig_high=0;
+	u64	as, ae, lim;
+	void *efi_map_start, *efi_map_end, *p, *q;
+	efi_memory_desc_t *md, *pmd = NULL, *check_md;
+	u64	efi_desc_size;
+	unsigned long total_mem = 0;
+
+	k = kern_memmap = find_memmap_space();
+
+	efi_map_start = __va(ia64_boot_param->efi_memmap);
+	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;
+	efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+	for (p = efi_map_start; p < efi_map_end; pmd = md, p += efi_desc_size) {
+		md = p;
+		if (!efi_wb(md)) {
+			if (efi_uc(md) && (md->type == EFI_CONVENTIONAL_MEMORY ||
+				    	   md->type == EFI_BOOT_SERVICES_DATA)) {
+				k->attribute = EFI_MEMORY_UC;
+				k->start = md->phys_addr;
+				k->num_pages = md->num_pages;
+				k++;
+			}
+			continue;
+		}
+		if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) {
+			contig_low = GRANULEROUNDUP(md->phys_addr);
+			contig_high = efi_md_end(md);
+			for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) {
+				check_md = q;
+				if (!efi_wb(check_md))
+					break;
+				if (contig_high != check_md->phys_addr)
+					break;
+				contig_high = efi_md_end(check_md);
+			}
+			contig_high = GRANULEROUNDDOWN(contig_high);
+		}
+		if (!is_available_memory(md))
+			continue;
+
+		/*
+		 * Round ends inward to granule boundaries
+		 * Give trimmings to uncached allocator
+		 */
+		if (md->phys_addr < contig_low) {
+			lim = min(efi_md_end(md), contig_low);
+			if (efi_uc(md)) {
+				if (k > kern_memmap && (k-1)->attribute == EFI_MEMORY_UC &&
+				    kmd_end(k-1) == md->phys_addr) {
+					(k-1)->num_pages += (lim - md->phys_addr) >> EFI_PAGE_SHIFT;
+				} else {
+					k->attribute = EFI_MEMORY_UC;
+					k->start = md->phys_addr;
+					k->num_pages = (lim - md->phys_addr) >> EFI_PAGE_SHIFT;
+					k++;
+				}
+			}
+			as = contig_low;
+		} else
+			as = md->phys_addr;
+
+		if (efi_md_end(md) > contig_high) {
+			lim = max(md->phys_addr, contig_high);
+			if (efi_uc(md)) {
+				if (lim == md->phys_addr && k > kern_memmap &&
+				    (k-1)->attribute == EFI_MEMORY_UC &&
+				    kmd_end(k-1) == md->phys_addr) {
+					(k-1)->num_pages += md->num_pages;
+				} else {
+					k->attribute = EFI_MEMORY_UC;
+					k->start = lim;
+					k->num_pages = (efi_md_end(md) - lim) >> EFI_PAGE_SHIFT;
+					k++;
+				}
+			}
+			ae = contig_high;
+		} else
+			ae = efi_md_end(md);
+
+		/* keep within max_addr= command line arg */
+		ae = min(ae, max_addr);
+		if (ae <= as)
+			continue;
+
+		/* avoid going over mem= command line arg */
+		if (total_mem + (ae - as) > mem_limit)
+			ae -= total_mem + (ae - as) - mem_limit;
+
+		if (ae <= as)
+			continue;
+		if (prev && kmd_end(prev) == md->phys_addr) {
+			prev->num_pages += (ae - as) >> EFI_PAGE_SHIFT;
+			total_mem += ae - as;
+			continue;
+		}
+		k->attribute = EFI_MEMORY_WB;
+		k->start = as;
+		k->num_pages = (ae - as) >> EFI_PAGE_SHIFT;
+		total_mem += ae - as;
+		prev = k++;
+	}
+	k->start = ~0L; /* end-marker */
+
+	/* reserve the memory we are using for kern_memmap */
+	*s = (u64)kern_memmap;
+	*e = (u64)++k;
+}
+
+void
+efi_initialize_iomem_resources(struct resource *code_resource,
+			       struct resource *data_resource)
+{
+	struct resource *res;
+	void *efi_map_start, *efi_map_end, *p;
+	efi_memory_desc_t *md;
+	u64 efi_desc_size;
+	char *name;
+	unsigned long flags;
+
+	efi_map_start = __va(ia64_boot_param->efi_memmap);
+	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;
+	efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+	res = NULL;
+
+	for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
+		md = p;
+
+		if (md->num_pages == 0) /* should not happen */
+			continue;
+
+		flags = IORESOURCE_MEM;
+		switch (md->type) {
+
+			case EFI_MEMORY_MAPPED_IO:
+			case EFI_MEMORY_MAPPED_IO_PORT_SPACE:
+				continue;
+
+			case EFI_LOADER_CODE:
+			case EFI_LOADER_DATA:
+			case EFI_BOOT_SERVICES_DATA:
+			case EFI_BOOT_SERVICES_CODE:
+			case EFI_CONVENTIONAL_MEMORY:
+				if (md->attribute & EFI_MEMORY_WP) {
+					name = "System ROM";
+					flags |= IORESOURCE_READONLY;
+				} else {
+					name = "System RAM";
+				}
+				break;
+
+			case EFI_ACPI_MEMORY_NVS:
+				name = "ACPI Non-volatile Storage";
+				flags |= IORESOURCE_BUSY;
+				break;
+
+			case EFI_UNUSABLE_MEMORY:
+				name = "reserved";
+				flags |= IORESOURCE_BUSY | IORESOURCE_DISABLED;
+				break;
+
+			case EFI_RESERVED_TYPE:
+			case EFI_RUNTIME_SERVICES_CODE:
+			case EFI_RUNTIME_SERVICES_DATA:
+			case EFI_ACPI_RECLAIM_MEMORY:
+			default:
+				name = "reserved";
+				flags |= IORESOURCE_BUSY;
+				break;
+		}
+
+		if ((res = kcalloc(1, sizeof(struct resource), GFP_KERNEL)) == NULL) {
+			printk(KERN_ERR "failed to alocate resource for iomem\n");
+			return;
+		}
+
+		res->name = name;
+		res->start = md->phys_addr;
+		res->end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1;
+		res->flags = flags;
+
+		if (insert_resource(&iomem_resource, res) < 0)
+			kfree(res);
+		else {
+			/*
+			 * We don't know which region contains
+			 * kernel data so we try it repeatedly and
+			 * let the resource manager test it.
+			 */
+			insert_resource(res, code_resource);
+			insert_resource(res, data_resource);
+		}
+	}
+}

arch/ia64/kernel/irq.c

@@ -57,9 +57,9 @@ int show_interrupts(struct seq_file *p, void *v)
 
 	if (i == 0) {
 		seq_printf(p, "           ");
-		for (j=0; j<NR_CPUS; j++)
+		for_each_online_cpu(j) {
-			if (cpu_online(j))
+			seq_printf(p, "CPU%d       ",j);
-				seq_printf(p, "CPU%d       ",j);
+		}
 		seq_putc(p, '\n');
 	}
 
@@ -72,9 +72,9 @@ int show_interrupts(struct seq_file *p, void *v)
 #ifndef CONFIG_SMP
 		seq_printf(p, "%10u ", kstat_irqs(i));
 #else
-		for (j = 0; j < NR_CPUS; j++)
+		for_each_online_cpu(j) {
-			if (cpu_online(j))
+			seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
-				seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+		}
 #endif
 		seq_printf(p, " %14s", irq_desc[i].handler->typename);
 		seq_printf(p, "  %s", action->name);

arch/ia64/kernel/mca.c

@@ -508,9 +508,7 @@ ia64_mca_wakeup_all(void)
 	int cpu;
 
 	/* Clear the Rendez checkin flag for all cpus */
-	for(cpu = 0; cpu < NR_CPUS; cpu++) {
+	for_each_online_cpu(cpu) {
-		if (!cpu_online(cpu))
-			continue;
 		if (ia64_mc_info.imi_rendez_checkin[cpu] == IA64_MCA_RENDEZ_CHECKIN_DONE)
 			ia64_mca_wakeup(cpu);
 	}

arch/ia64/kernel/module.c

@@ -947,8 +947,8 @@ void
 percpu_modcopy (void *pcpudst, const void *src, unsigned long size)
 {
 	unsigned int i;
-	for (i = 0; i < NR_CPUS; i++)
+	for_each_cpu(i) {
-		if (cpu_possible(i))
+		memcpy(pcpudst + __per_cpu_offset[i], src, size);
-			memcpy(pcpudst + __per_cpu_offset[i], src, size);
+	}
 }
 #endif /* CONFIG_SMP */

arch/ia64/kernel/patch.c

@@ -64,22 +64,30 @@ ia64_patch (u64 insn_addr, u64 mask, u64 val)
 void
 ia64_patch_imm64 (u64 insn_addr, u64 val)
 {
-	ia64_patch(insn_addr,
+	/* The assembler may generate offset pointing to either slot 1
+	   or slot 2 for a long (2-slot) instruction, occupying slots 1
+	   and 2.  */
+  	insn_addr &= -16UL;
+	ia64_patch(insn_addr + 2,
 		   0x01fffefe000UL, (  ((val & 0x8000000000000000UL) >> 27) /* bit 63 -> 36 */
 				     | ((val & 0x0000000000200000UL) <<  0) /* bit 21 -> 21 */
 				     | ((val & 0x00000000001f0000UL) <<  6) /* bit 16 -> 22 */
 				     | ((val & 0x000000000000ff80UL) << 20) /* bit  7 -> 27 */
 				     | ((val & 0x000000000000007fUL) << 13) /* bit  0 -> 13 */));
-	ia64_patch(insn_addr - 1, 0x1ffffffffffUL, val >> 22);
+	ia64_patch(insn_addr + 1, 0x1ffffffffffUL, val >> 22);
 }
 
 void
 ia64_patch_imm60 (u64 insn_addr, u64 val)
 {
-	ia64_patch(insn_addr,
+	/* The assembler may generate offset pointing to either slot 1
+	   or slot 2 for a long (2-slot) instruction, occupying slots 1
+	   and 2.  */
+  	insn_addr &= -16UL;
+	ia64_patch(insn_addr + 2,
 		   0x011ffffe000UL, (  ((val & 0x0800000000000000UL) >> 23) /* bit 59 -> 36 */
 				     | ((val & 0x00000000000fffffUL) << 13) /* bit  0 -> 13 */));
-	ia64_patch(insn_addr - 1, 0x1fffffffffcUL, val >> 18);
+	ia64_patch(insn_addr + 1, 0x1fffffffffcUL, val >> 18);
 }
 
 /*

arch/ia64/kernel/ptrace.c

@@ -587,8 +587,9 @@ thread_matches (struct task_struct *thread, unsigned long addr)
 static struct task_struct *
 find_thread_for_addr (struct task_struct *child, unsigned long addr)
 {
-	struct task_struct *g, *p;
+	struct task_struct *p;
 	struct mm_struct *mm;
+	struct list_head *this, *next;
 	int mm_users;
 
 	if (!(mm = get_task_mm(child)))
@@ -600,28 +601,21 @@ find_thread_for_addr (struct task_struct *child, unsigned long addr)
 		goto out;		/* not multi-threaded */
 
 	/*
-	 * First, traverse the child's thread-list.  Good for scalability with
+	 * Traverse the current process' children list.  Every task that
-	 * NPTL-threads.
+	 * one attaches to becomes a child.  And it is only attached children
+	 * of the debugger that are of interest (ptrace_check_attach checks
+	 * for this).
 	 */
-	p = child;
+ 	list_for_each_safe(this, next, &current->children) {
-	do {
+		p = list_entry(this, struct task_struct, sibling);
-		if (thread_matches(p, addr)) {
+		if (p->mm != mm)
-			child = p;
-			goto out;
-		}
-		if (mm_users-- <= 1)
-			goto out;
-	} while ((p = next_thread(p)) != child);
-
-	do_each_thread(g, p) {
-		if (child->mm != mm)
 			continue;
-
 		if (thread_matches(p, addr)) {
 			child = p;
 			goto out;
 		}
-	} while_each_thread(g, p);
+	}
+
   out:
 	mmput(mm);
 	return child;

arch/ia64/kernel/setup.c

@@ -78,6 +78,19 @@ struct screen_info screen_info;
 unsigned long vga_console_iobase;
 unsigned long vga_console_membase;
 
+static struct resource data_resource = {
+	.name	= "Kernel data",
+	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+};
+
+static struct resource code_resource = {
+	.name	= "Kernel code",
+	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM
+};
+extern void efi_initialize_iomem_resources(struct resource *,
+		struct resource *);
+extern char _text[], _end[], _etext[];
+
 unsigned long ia64_max_cacheline_size;
 unsigned long ia64_iobase;	/* virtual address for I/O accesses */
 EXPORT_SYMBOL(ia64_iobase);
@@ -171,6 +184,22 @@ sort_regions (struct rsvd_region *rsvd_region, int max)
 	}
 }
 
+/*
+ * Request address space for all standard resources
+ */
+static int __init register_memory(void)
+{
+	code_resource.start = ia64_tpa(_text);
+	code_resource.end   = ia64_tpa(_etext) - 1;
+	data_resource.start = ia64_tpa(_etext);
+	data_resource.end   = ia64_tpa(_end) - 1;
+	efi_initialize_iomem_resources(&code_resource, &data_resource);
+
+	return 0;
+}
+
+__initcall(register_memory);
+
 /**
  * reserve_memory - setup reserved memory areas
  *
@@ -211,6 +240,9 @@ reserve_memory (void)
 	}
 #endif
 
+	efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
+	n++;
+
 	/* end of memory marker */
 	rsvd_region[n].start = ~0UL;
 	rsvd_region[n].end   = ~0UL;
@@ -244,28 +276,31 @@ find_initrd (void)
 static void __init
 io_port_init (void)
 {
-	extern unsigned long ia64_iobase;
 	unsigned long phys_iobase;
 
 	/*
-	 *  Set `iobase' to the appropriate address in region 6 (uncached access range).
+	 * Set `iobase' based on the EFI memory map or, failing that, the
+	 * value firmware left in ar.k0.
 	 *
-	 *  The EFI memory map is the "preferred" location to get the I/O port space base,
+	 * Note that in ia32 mode, IN/OUT instructions use ar.k0 to compute
-	 *  rather the relying on AR.KR0. This should become more clear in future SAL
+	 * the port's virtual address, so ia32_load_state() loads it with a
-	 *  specs. We'll fall back to getting it out of AR.KR0 if no appropriate entry is
+	 * user virtual address.  But in ia64 mode, glibc uses the
-	 *  found in the memory map.
+	 * *physical* address in ar.k0 to mmap the appropriate area from
+	 * /dev/mem, and the inX()/outX() interfaces use MMIO.  In both
+	 * cases, user-mode can only use the legacy 0-64K I/O port space.
+	 *
+	 * ar.k0 is not involved in kernel I/O port accesses, which can use
+	 * any of the I/O port spaces and are done via MMIO using the
+	 * virtual mmio_base from the appropriate io_space[].
 	 */
 	phys_iobase = efi_get_iobase();
-	if (phys_iobase)
+	if (!phys_iobase) {
-		/* set AR.KR0 since this is all we use it for anyway */
-		ia64_set_kr(IA64_KR_IO_BASE, phys_iobase);
-	else {
 		phys_iobase = ia64_get_kr(IA64_KR_IO_BASE);
-		printk(KERN_INFO "No I/O port range found in EFI memory map, falling back "
+		printk(KERN_INFO "No I/O port range found in EFI memory map, "
-		       "to AR.KR0\n");
+			"falling back to AR.KR0 (0x%lx)\n", phys_iobase);
-		printk(KERN_INFO "I/O port base = 0x%lx\n", phys_iobase);
 	}
 	ia64_iobase = (unsigned long) ioremap(phys_iobase, 0);
+	ia64_set_kr(IA64_KR_IO_BASE, __pa(ia64_iobase));
 
 	/* setup legacy IO port space */
 	io_space[0].mmio_base = ia64_iobase;
@@ -526,7 +561,7 @@ show_cpuinfo (struct seq_file *m, void *v)
 		   c->itc_freq / 1000000, c->itc_freq % 1000000,
 		   lpj*HZ/500000, (lpj*HZ/5000) % 100);
 #ifdef CONFIG_SMP
-	seq_printf(m, "siblings   : %u\n", c->num_log);
+	seq_printf(m, "siblings   : %u\n", cpus_weight(cpu_core_map[cpunum]));
 	if (c->threads_per_core > 1 || c->cores_per_socket > 1)
 		seq_printf(m,
 		   	   "physical id: %u\n"

arch/ia64/kernel/smp.c

@@ -185,8 +185,8 @@ send_IPI_allbutself (int op)
 {
 	unsigned int i;
 
-	for (i = 0; i < NR_CPUS; i++) {
+	for_each_online_cpu(i) {
-		if (cpu_online(i) && i != smp_processor_id())
+		if (i != smp_processor_id())
 			send_IPI_single(i, op);
 	}
 }
@@ -199,9 +199,9 @@ send_IPI_all (int op)
 {
 	int i;
 
-	for (i = 0; i < NR_CPUS; i++)
+	for_each_online_cpu(i) {
-		if (cpu_online(i))
+		send_IPI_single(i, op);
-			send_IPI_single(i, op);
+	}
 }
 
 /*

arch/ia64/kernel/smpboot.c

@@ -694,9 +694,9 @@ smp_cpus_done (unsigned int dummy)
 	 * Allow the user to impress friends.
 	 */
 
-	for (cpu = 0; cpu < NR_CPUS; cpu++)
+	for_each_online_cpu(cpu) {
-		if (cpu_online(cpu))
+		bogosum += cpu_data(cpu)->loops_per_jiffy;
-			bogosum += cpu_data(cpu)->loops_per_jiffy;
+	}
 
 	printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
 	       (int)num_online_cpus(), bogosum/(500000/HZ), (bogosum/(5000/HZ))%100);

arch/ia64/kernel/uncached.c

@@ -205,23 +205,18 @@ EXPORT_SYMBOL(uncached_free_page);
 static int __init
 uncached_build_memmap(unsigned long start, unsigned long end, void *arg)
 {
-	long length;
+	long length = end - start;
-	unsigned long vstart, vend;
 	int node;
 
-	length = end - start;
-	vstart = start + __IA64_UNCACHED_OFFSET;
-	vend = end + __IA64_UNCACHED_OFFSET;
-
 	dprintk(KERN_ERR "uncached_build_memmap(%lx %lx)\n", start, end);
 
-	memset((char *)vstart, 0, length);
+	memset((char *)start, 0, length);
 
-	node = paddr_to_nid(start);
+	node = paddr_to_nid(start - __IA64_UNCACHED_OFFSET);
 
-	for (; vstart < vend ; vstart += PAGE_SIZE) {
+	for (; start < end ; start += PAGE_SIZE) {
-		dprintk(KERN_INFO "sticking %lx into the pool!\n", vstart);
+		dprintk(KERN_INFO "sticking %lx into the pool!\n", start);
-		gen_pool_free(uncached_pool[node], vstart, PAGE_SIZE);
+		gen_pool_free(uncached_pool[node], start, PAGE_SIZE);
 	}
 
 	return 0;

arch/ia64/lib/swiotlb.c

@@ -49,6 +49,15 @@
  */
 #define IO_TLB_SHIFT 11
 
+#define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT))
+
+/*
+ * Minimum IO TLB size to bother booting with.  Systems with mainly
+ * 64bit capable cards will only lightly use the swiotlb.  If we can't
+ * allocate a contiguous 1MB, we're probably in trouble anyway.
+ */
+#define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT)
+
 int swiotlb_force;
 
 /*
@@ -154,6 +163,99 @@ swiotlb_init (void)
 	swiotlb_init_with_default_size(64 * (1<<20));	/* default to 64MB */
 }
 
+/*
+ * Systems with larger DMA zones (those that don't support ISA) can
+ * initialize the swiotlb later using the slab allocator if needed.
+ * This should be just like above, but with some error catching.
+ */
+int
+swiotlb_late_init_with_default_size (size_t default_size)
+{
+	unsigned long i, req_nslabs = io_tlb_nslabs;
+	unsigned int order;
+
+	if (!io_tlb_nslabs) {
+		io_tlb_nslabs = (default_size >> IO_TLB_SHIFT);
+		io_tlb_nslabs = ALIGN(io_tlb_nslabs, IO_TLB_SEGSIZE);
+	}
+
+	/*
+	 * Get IO TLB memory from the low pages
+	 */
+	order = get_order(io_tlb_nslabs * (1 << IO_TLB_SHIFT));
+	io_tlb_nslabs = SLABS_PER_PAGE << order;
+
+	while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) {
+		io_tlb_start = (char *)__get_free_pages(GFP_DMA | __GFP_NOWARN,
+		                                        order);
+		if (io_tlb_start)
+			break;
+		order--;
+	}
+
+	if (!io_tlb_start)
+		goto cleanup1;
+
+	if (order != get_order(io_tlb_nslabs * (1 << IO_TLB_SHIFT))) {
+		printk(KERN_WARNING "Warning: only able to allocate %ld MB "
+		       "for software IO TLB\n", (PAGE_SIZE << order) >> 20);
+		io_tlb_nslabs = SLABS_PER_PAGE << order;
+	}
+	io_tlb_end = io_tlb_start + io_tlb_nslabs * (1 << IO_TLB_SHIFT);
+	memset(io_tlb_start, 0, io_tlb_nslabs * (1 << IO_TLB_SHIFT));
+
+	/*
+	 * Allocate and initialize the free list array.  This array is used
+	 * to find contiguous free memory regions of size up to IO_TLB_SEGSIZE
+	 * between io_tlb_start and io_tlb_end.
+	 */
+	io_tlb_list = (unsigned int *)__get_free_pages(GFP_KERNEL,
+	                              get_order(io_tlb_nslabs * sizeof(int)));
+	if (!io_tlb_list)
+		goto cleanup2;
+
+	for (i = 0; i < io_tlb_nslabs; i++)
+ 		io_tlb_list[i] = IO_TLB_SEGSIZE - OFFSET(i, IO_TLB_SEGSIZE);
+	io_tlb_index = 0;
+
+	io_tlb_orig_addr = (unsigned char **)__get_free_pages(GFP_KERNEL,
+	                           get_order(io_tlb_nslabs * sizeof(char *)));
+	if (!io_tlb_orig_addr)
+		goto cleanup3;
+
+	memset(io_tlb_orig_addr, 0, io_tlb_nslabs * sizeof(char *));
+
+	/*
+	 * Get the overflow emergency buffer
+	 */
+	io_tlb_overflow_buffer = (void *)__get_free_pages(GFP_DMA,
+	                                          get_order(io_tlb_overflow));
+	if (!io_tlb_overflow_buffer)
+		goto cleanup4;
+
+	printk(KERN_INFO "Placing %ldMB software IO TLB between 0x%lx - "
+	       "0x%lx\n", (io_tlb_nslabs * (1 << IO_TLB_SHIFT)) >> 20,
+	       virt_to_phys(io_tlb_start), virt_to_phys(io_tlb_end));
+
+	return 0;
+
+cleanup4:
+	free_pages((unsigned long)io_tlb_orig_addr, get_order(io_tlb_nslabs *
+	                                                      sizeof(char *)));
+	io_tlb_orig_addr = NULL;
+cleanup3:
+	free_pages((unsigned long)io_tlb_list, get_order(io_tlb_nslabs *
+	                                                 sizeof(int)));
+	io_tlb_list = NULL;
+	io_tlb_end = NULL;
+cleanup2:
+	free_pages((unsigned long)io_tlb_start, order);
+	io_tlb_start = NULL;
+cleanup1:
+	io_tlb_nslabs = req_nslabs;
+	return -ENOMEM;
+}
+
 static inline int
 address_needs_mapping(struct device *hwdev, dma_addr_t addr)
 {

arch/ia64/mm/Makefile

@@ -7,6 +7,5 @@ obj-y := init.o fault.o tlb.o extable.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
 obj-$(CONFIG_NUMA)	   += numa.o
 obj-$(CONFIG_DISCONTIGMEM) += discontig.o
-ifndef CONFIG_DISCONTIGMEM
+obj-$(CONFIG_SPARSEMEM)	   += discontig.o
-obj-y += contig.o
+obj-$(CONFIG_FLATMEM)	   += contig.o
-endif

arch/ia64/mm/contig.c

@@ -269,7 +269,7 @@ paging_init (void)
 	efi_memmap_walk(find_largest_hole, (u64 *)&max_gap);
 	if (max_gap < LARGE_GAP) {
 		vmem_map = (struct page *) 0;
-		free_area_init_node(0, &contig_page_data, zones_size, 0,
+		free_area_init_node(0, NODE_DATA(0), zones_size, 0,
 				    zholes_size);
 	} else {
 		unsigned long map_size;
@@ -282,7 +282,7 @@ paging_init (void)
 		efi_memmap_walk(create_mem_map_page_table, NULL);
 
 		NODE_DATA(0)->node_mem_map = vmem_map;
-		free_area_init_node(0, &contig_page_data, zones_size,
+		free_area_init_node(0, NODE_DATA(0), zones_size,
 				    0, zholes_size);
 
 		printk("Virtual mem_map starts at 0x%p\n", mem_map);

arch/ia64/mm/discontig.c

@@ -421,6 +421,37 @@ static void __init memory_less_nodes(void)
 	return;
 }
 
+#ifdef CONFIG_SPARSEMEM
+/**
+ * register_sparse_mem - notify SPARSEMEM that this memory range exists.
+ * @start: physical start of range
+ * @end: physical end of range
+ * @arg: unused
+ *
+ * Simply calls SPARSEMEM to register memory section(s).
+ */
+static int __init register_sparse_mem(unsigned long start, unsigned long end,
+	void *arg)
+{
+	int nid;
+
+	start = __pa(start) >> PAGE_SHIFT;
+	end = __pa(end) >> PAGE_SHIFT;
+	nid = early_pfn_to_nid(start);
+	memory_present(nid, start, end);
+
+	return 0;
+}
+
+static void __init arch_sparse_init(void)
+{
+	efi_memmap_walk(register_sparse_mem, NULL);
+	sparse_init();
+}
+#else
+#define arch_sparse_init() do {} while (0)
+#endif
+
 /**
  * find_memory - walk the EFI memory map and setup the bootmem allocator
  *
@@ -528,8 +559,10 @@ void show_mem(void)
 		int shared = 0, cached = 0, reserved = 0;
 		printk("Node ID: %d\n", pgdat->node_id);
 		for(i = 0; i < pgdat->node_spanned_pages; i++) {
-			struct page *page = pgdat_page_nr(pgdat, i);
+			struct page *page;
-			if (!ia64_pfn_valid(pgdat->node_start_pfn+i))
+			if (pfn_valid(pgdat->node_start_pfn + i))
+				page = pfn_to_page(pgdat->node_start_pfn + i);
+			else
 				continue;
 			if (PageReserved(page))
 				reserved++;
@@ -648,12 +681,16 @@ void __init paging_init(void)
 
 	max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
 
+	arch_sparse_init();
+
 	efi_memmap_walk(filter_rsvd_memory, count_node_pages);
 
+#ifdef CONFIG_VIRTUAL_MEM_MAP
 	vmalloc_end -= PAGE_ALIGN(max_low_pfn * sizeof(struct page));
 	vmem_map = (struct page *) vmalloc_end;
 	efi_memmap_walk(create_mem_map_page_table, NULL);
 	printk("Virtual mem_map starts at 0x%p\n", vmem_map);
+#endif
 
 	for_each_online_node(node) {
 		memset(zones_size, 0, sizeof(zones_size));
@@ -690,7 +727,9 @@ void __init paging_init(void)
 
 		pfn_offset = mem_data[node].min_pfn;
 
+#ifdef CONFIG_VIRTUAL_MEM_MAP
 		NODE_DATA(node)->node_mem_map = vmem_map + pfn_offset;
+#endif
 		free_area_init_node(node, NODE_DATA(node), zones_size,
 				    pfn_offset, zholes_size);
 	}

arch/ia64/mm/init.c

@@ -593,7 +593,7 @@ mem_init (void)
 	platform_dma_init();
 #endif
 
-#ifndef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_FLATMEM
 	if (!mem_map)
 		BUG();
 	max_mapnr = max_low_pfn;

arch/ia64/mm/numa.c

@@ -47,3 +47,27 @@ paddr_to_nid(unsigned long paddr)
 
 	return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0);
 }
+
+#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA)
+/*
+ * Because of holes evaluate on section limits.
+ * If the section of memory exists, then return the node where the section
+ * resides.  Otherwise return node 0 as the default.  This is used by
+ * SPARSEMEM to allocate the SPARSEMEM sectionmap on the NUMA node where
+ * the section resides.
+ */
+int early_pfn_to_nid(unsigned long pfn)
+{
+	int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec;
+
+	for (i = 0; i < num_node_memblks; i++) {
+		ssec = node_memblk[i].start_paddr >> PA_SECTION_SHIFT;
+		esec = (node_memblk[i].start_paddr + node_memblk[i].size +
+			((1L << PA_SECTION_SHIFT) - 1)) >> PA_SECTION_SHIFT;
+		if (section >= ssec && section < esec)
+			return node_memblk[i].nid;
+	}
+
+	return 0;
+}
+#endif

arch/ia64/mm/tlb.c

@@ -77,19 +77,25 @@ wrap_mmu_context (struct mm_struct *mm)
 	/* can't call flush_tlb_all() here because of race condition with O(1) scheduler [EF] */
 	{
 		int cpu = get_cpu(); /* prevent preemption/migration */
-		for (i = 0; i < NR_CPUS; ++i)
+		for_each_online_cpu(i) {
-			if (cpu_online(i) && (i != cpu))
+			if (i != cpu)
 				per_cpu(ia64_need_tlb_flush, i) = 1;
+		}
 		put_cpu();
 	}
 	local_flush_tlb_all();
 }
 
 void
-ia64_global_tlb_purge (unsigned long start, unsigned long end, unsigned long nbits)
+ia64_global_tlb_purge (struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long nbits)
 {
 	static DEFINE_SPINLOCK(ptcg_lock);
 
+	if (mm != current->active_mm) {
+		flush_tlb_all();
+		return;
+	}
+
 	/* HW requires global serialization of ptc.ga.  */
 	spin_lock(&ptcg_lock);
 	{
@@ -135,15 +141,12 @@ flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long
 	unsigned long size = end - start;
 	unsigned long nbits;
 
+#ifndef CONFIG_SMP
 	if (mm != current->active_mm) {
-		/* this does happen, but perhaps it's not worth optimizing for? */
-#ifdef CONFIG_SMP
-		flush_tlb_all();
-#else
 		mm->context = 0;
-#endif
 		return;
 	}
+#endif
 
 	nbits = ia64_fls(size + 0xfff);
 	while (unlikely (((1UL << nbits) & purge.mask) == 0) && (nbits < purge.max_bits))
@@ -153,7 +156,7 @@ flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long
 	start &= ~((1UL << nbits) - 1);
 
 # ifdef CONFIG_SMP
-	platform_global_tlb_purge(start, end, nbits);
+	platform_global_tlb_purge(mm, start, end, nbits);
 # else
 	do {
 		ia64_ptcl(start, (nbits<<2));

arch/ia64/pci/pci.c

@@ -120,29 +120,6 @@ struct pci_ops pci_root_ops = {
 	.write = pci_write,
 };
 
-#ifdef CONFIG_NUMA
-extern acpi_status acpi_map_iosapic(acpi_handle, u32, void *, void **);
-static void acpi_map_iosapics(void)
-{
-	acpi_get_devices(NULL, acpi_map_iosapic, NULL, NULL);
-}
-#else
-static void acpi_map_iosapics(void)
-{
-	return;
-}
-#endif /* CONFIG_NUMA */
-
-static int __init
-pci_acpi_init (void)
-{
-	acpi_map_iosapics();
-
-	return 0;
-}
-
-subsys_initcall(pci_acpi_init);
-
 /* Called by ACPI when it finds a new root bus.  */
 
 static struct pci_controller * __devinit
@@ -191,6 +168,29 @@ add_io_space (struct acpi_resource_address64 *addr)
 	return IO_SPACE_BASE(i);
 }
 
+static acpi_status __devinit resource_to_window(struct acpi_resource *resource,
+	struct acpi_resource_address64 *addr)
+{
+	acpi_status status;
+
+	/*
+	 * We're only interested in _CRS descriptors that are
+	 *	- address space descriptors for memory or I/O space
+	 *	- non-zero size
+	 *	- producers, i.e., the address space is routed downstream,
+	 *	  not consumed by the bridge itself
+	 */
+	status = acpi_resource_to_address64(resource, addr);
+	if (ACPI_SUCCESS(status) &&
+	    (addr->resource_type == ACPI_MEMORY_RANGE ||
+	     addr->resource_type == ACPI_IO_RANGE) &&
+	    addr->address_length &&
+	    addr->producer_consumer == ACPI_PRODUCER)
+		return AE_OK;
+
+	return AE_ERROR;
+}
+
 static acpi_status __devinit
 count_window (struct acpi_resource *resource, void *data)
 {
@@ -198,11 +198,9 @@ count_window (struct acpi_resource *resource, void *data)
 	struct acpi_resource_address64 addr;
 	acpi_status status;
 
-	status = acpi_resource_to_address64(resource, &addr);
+	status = resource_to_window(resource, &addr);
 	if (ACPI_SUCCESS(status))
-		if (addr.resource_type == ACPI_MEMORY_RANGE ||
+		(*windows)++;
-		    addr.resource_type == ACPI_IO_RANGE)
-			(*windows)++;
 
 	return AE_OK;
 }
@@ -221,13 +219,11 @@ static __devinit acpi_status add_window(struct acpi_resource *res, void *data)
 	unsigned long flags, offset = 0;
 	struct resource *root;
 
-	status = acpi_resource_to_address64(res, &addr);
+	/* Return AE_OK for non-window resources to keep scanning for more */
+	status = resource_to_window(res, &addr);
 	if (!ACPI_SUCCESS(status))
 		return AE_OK;
 
-	if (!addr.address_length)
-		return AE_OK;
-
 	if (addr.resource_type == ACPI_MEMORY_RANGE) {
 		flags = IORESOURCE_MEM;
 		root = &iomem_resource;

arch/ia64/sn/kernel/bte.c

@@ -87,7 +87,7 @@ bte_result_t bte_copy(u64 src, u64 dest, u64 len, u64 mode, void *notification)
 	unsigned long irq_flags;
 	unsigned long itc_end = 0;
 	int nasid_to_try[MAX_NODES_TO_TRY];
-	int my_nasid = get_nasid();
+	int my_nasid = cpuid_to_nasid(raw_smp_processor_id());
 	int bte_if_index, nasid_index;
 	int bte_first, btes_per_node = BTES_PER_NODE;
 

arch/ia64/sn/kernel/io_init.c

@@ -22,8 +22,6 @@
 #include "xtalk/hubdev.h"
 #include "xtalk/xwidgetdev.h"
 
-nasid_t master_nasid = INVALID_NASID;	/* Partition Master */
-
 static struct list_head sn_sysdata_list;
 
 /* sysdata list struct */
@@ -165,7 +163,7 @@ static void sn_fixup_ionodes(void)
 	 * Get SGI Specific HUB chipset information.
 	 * Inform Prom that this kernel can support domain bus numbering.
 	 */
-	for (i = 0; i < numionodes; i++) {
+	for (i = 0; i < num_cnodes; i++) {
 		hubdev = (struct hubdev_info *)(NODEPDA(i)->pdinfo);
 		nasid = cnodeid_to_nasid(i);
 		hubdev->max_segment_number = 0xffffffff;

arch/ia64/sn/kernel/setup.c

@@ -59,8 +59,6 @@ DEFINE_PER_CPU(struct pda_s, pda_percpu);
 
 #define MAX_PHYS_MEMORY		(1UL << IA64_MAX_PHYS_BITS)	/* Max physical address supported */
 
-lboard_t *root_lboard[MAX_COMPACT_NODES];
-
 extern void bte_init_node(nodepda_t *, cnodeid_t);
 
 extern void sn_timer_init(void);
@@ -97,15 +95,15 @@ u8 sn_region_size;
 EXPORT_SYMBOL(sn_region_size);
 int sn_prom_type;	/* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */
 
-short physical_node_map[MAX_PHYSNODE_ID];
+short physical_node_map[MAX_NUMALINK_NODES];
 static unsigned long sn_prom_features[MAX_PROM_FEATURE_SETS];
 
 EXPORT_SYMBOL(physical_node_map);
 
-int numionodes;
+int num_cnodes;
 
 static void sn_init_pdas(char **);
-static void scan_for_ionodes(void);
+static void build_cnode_tables(void);
 
 static nodepda_t *nodepdaindr[MAX_COMPACT_NODES];
 
@@ -139,19 +137,6 @@ extern char drive_info[4 * 16];
 char drive_info[4 * 16];
 #endif
 
-/*
- * Get nasid of current cpu early in boot before nodepda is initialized
- */
-static int
-boot_get_nasid(void)
-{
-	int nasid;
-
-	if (ia64_sn_get_sapic_info(get_sapicid(), &nasid, NULL, NULL))
-		BUG();
-	return nasid;
-}
-
 /*
  * This routine can only be used during init, since
  * smp_boot_data is an init data structure.
@@ -223,7 +208,6 @@ void __init early_sn_setup(void)
 }
 
 extern int platform_intr_list[];
-extern nasid_t master_nasid;
 static int __initdata shub_1_1_found = 0;
 
 /*
@@ -269,7 +253,6 @@ static void __init sn_check_for_wars(void)
 void __init sn_setup(char **cmdline_p)
 {
 	long status, ticks_per_sec, drift;
-	int pxm;
 	u32 version = sn_sal_rev();
 	extern void sn_cpu_init(void);
 
@@ -300,11 +283,10 @@ void __init sn_setup(char **cmdline_p)
 
 	MAX_DMA_ADDRESS = PAGE_OFFSET + MAX_PHYS_MEMORY;
 
-	memset(physical_node_map, -1, sizeof(physical_node_map));
+	/*
-	for (pxm = 0; pxm < MAX_PXM_DOMAINS; pxm++)
+	 * Build the tables for managing cnodes.
-		if (pxm_to_nid_map[pxm] != -1)
+	 */
-			physical_node_map[pxm_to_nasid(pxm)] =
+	build_cnode_tables();
-			    pxm_to_nid_map[pxm];
 
 	/*
 	 * Old PROMs do not provide an ACPI FADT. Disable legacy keyboard
@@ -319,8 +301,6 @@ void __init sn_setup(char **cmdline_p)
 
 	printk("SGI SAL version %x.%02x\n", version >> 8, version & 0x00FF);
 
-	master_nasid = boot_get_nasid();
-
 	status =
 	    ia64_sal_freq_base(SAL_FREQ_BASE_REALTIME_CLOCK, &ticks_per_sec,
 			       &drift);
@@ -378,15 +358,6 @@ static void __init sn_init_pdas(char **cmdline_p)
 {
 	cnodeid_t cnode;
 
-	memset(sn_cnodeid_to_nasid, -1,
-			sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid)));
-	for_each_online_node(cnode)
-		sn_cnodeid_to_nasid[cnode] =
-				pxm_to_nasid(nid_to_pxm_map[cnode]);
-
-	numionodes = num_online_nodes();
-	scan_for_ionodes();
-
 	/*
 	 * Allocate & initalize the nodepda for each node.
 	 */
@@ -402,7 +373,7 @@ static void __init sn_init_pdas(char **cmdline_p)
 	/*
 	 * Allocate & initialize nodepda for TIOs.  For now, put them on node 0.
 	 */
-	for (cnode = num_online_nodes(); cnode < numionodes; cnode++) {
+	for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++) {
 		nodepdaindr[cnode] =
 		    alloc_bootmem_node(NODE_DATA(0), sizeof(nodepda_t));
 		memset(nodepdaindr[cnode], 0, sizeof(nodepda_t));
@@ -411,7 +382,7 @@ static void __init sn_init_pdas(char **cmdline_p)
 	/*
 	 * Now copy the array of nodepda pointers to each nodepda.
 	 */
-	for (cnode = 0; cnode < numionodes; cnode++)
+	for (cnode = 0; cnode < num_cnodes; cnode++)
 		memcpy(nodepdaindr[cnode]->pernode_pdaindr, nodepdaindr,
 		       sizeof(nodepdaindr));
 
@@ -428,7 +399,7 @@ static void __init sn_init_pdas(char **cmdline_p)
 	 * Initialize the per node hubdev.  This includes IO Nodes and
 	 * headless/memless nodes.
 	 */
-	for (cnode = 0; cnode < numionodes; cnode++) {
+	for (cnode = 0; cnode < num_cnodes; cnode++) {
 		hubdev_init_node(nodepdaindr[cnode], cnode);
 	}
 }
@@ -553,87 +524,58 @@ void __init sn_cpu_init(void)
 }
 
 /*
- * Scan klconfig for ionodes.  Add the nasids to the
+ * Build tables for converting between NASIDs and cnodes.
- * physical_node_map and the pda and increment numionodes.
  */
-
+static inline int __init board_needs_cnode(int type)
-static void __init scan_for_ionodes(void)
 {
-	int nasid = 0;
+	return (type == KLTYPE_SNIA || type == KLTYPE_TIO);
+}
+
+void __init build_cnode_tables(void)
+{
+	int nasid;
+	int node;
 	lboard_t *brd;
 
+	memset(physical_node_map, -1, sizeof(physical_node_map));
+	memset(sn_cnodeid_to_nasid, -1,
+			sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid)));
+
+	/*
+	 * First populate the tables with C/M bricks. This ensures that
+	 * cnode == node for all C & M bricks.
+	 */
+	for_each_online_node(node) {
+		nasid = pxm_to_nasid(nid_to_pxm_map[node]);
+		sn_cnodeid_to_nasid[node] = nasid;
+		physical_node_map[nasid] = node;
+	}
+
+	/*
+	 * num_cnodes is total number of C/M/TIO bricks. Because of the 256 node
+	 * limit on the number of nodes, we can't use the generic node numbers 
+	 * for this. Note that num_cnodes is incremented below as TIOs or
+	 * headless/memoryless nodes are discovered.
+	 */
+	num_cnodes = num_online_nodes();
+
 	/* fakeprom does not support klgraph */
 	if (IS_RUNNING_ON_FAKE_PROM())
 		return;
 
-	/* Setup ionodes with memory */
+	/* Find TIOs & headless/memoryless nodes and add them to the tables */
-	for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
+	for_each_online_node(node) {
-		char *klgraph_header;
+		kl_config_hdr_t *klgraph_header;
-		cnodeid_t cnodeid;
+		nasid = cnodeid_to_nasid(node);
-
+		if ((klgraph_header = ia64_sn_get_klconfig_addr(nasid)) == NULL)
-		if (physical_node_map[nasid] == -1)
+			BUG();
-			continue;
+		brd = NODE_OFFSET_TO_LBOARD(nasid, klgraph_header->ch_board_info);
-
-		cnodeid = -1;
-		klgraph_header = __va(ia64_sn_get_klconfig_addr(nasid));
-		if (!klgraph_header) {
-			BUG();	/* All nodes must have klconfig tables! */
-		}
-		cnodeid = nasid_to_cnodeid(nasid);
-		root_lboard[cnodeid] = (lboard_t *)
-		    NODE_OFFSET_TO_LBOARD((nasid),
-					  ((kl_config_hdr_t
-					    *) (klgraph_header))->
-					  ch_board_info);
-	}
-
-	/* Scan headless/memless IO Nodes. */
-	for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
-		/* if there's no nasid, don't try to read the klconfig on the node */
-		if (physical_node_map[nasid] == -1)
-			continue;
-		brd = find_lboard_any((lboard_t *)
-				      root_lboard[nasid_to_cnodeid(nasid)],
-				      KLTYPE_SNIA);
-		if (brd) {
-			brd = KLCF_NEXT_ANY(brd);	/* Skip this node's lboard */
-			if (!brd)
-				continue;
-		}
-
-		brd = find_lboard_any(brd, KLTYPE_SNIA);
-
 		while (brd) {
-			sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid;
+			if (board_needs_cnode(brd->brd_type) && physical_node_map[brd->brd_nasid] < 0) {
-			physical_node_map[brd->brd_nasid] = numionodes;
+				sn_cnodeid_to_nasid[num_cnodes] = brd->brd_nasid;
-			root_lboard[numionodes] = brd;
+				physical_node_map[brd->brd_nasid] = num_cnodes++;
-			numionodes++;
+			}
-			brd = KLCF_NEXT_ANY(brd);
+			brd = find_lboard_next(brd);
-			if (!brd)
-				break;
-
-			brd = find_lboard_any(brd, KLTYPE_SNIA);
-		}
-	}
-
-	/* Scan for TIO nodes. */
-	for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
-		/* if there's no nasid, don't try to read the klconfig on the node */
-		if (physical_node_map[nasid] == -1)
-			continue;
-		brd = find_lboard_any((lboard_t *)
-				      root_lboard[nasid_to_cnodeid(nasid)],
-				      KLTYPE_TIO);
-		while (brd) {
-			sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid;
-			physical_node_map[brd->brd_nasid] = numionodes;
-			root_lboard[numionodes] = brd;
-			numionodes++;
-			brd = KLCF_NEXT_ANY(brd);
-			if (!brd)
-				break;
-
-			brd = find_lboard_any(brd, KLTYPE_TIO);
 		}
 	}
 }

arch/ia64/sn/kernel/sn2/sn2_smp.c

@@ -177,6 +177,7 @@ void sn_tlb_migrate_finish(struct mm_struct *mm)
 
 /**
  * sn2_global_tlb_purge - globally purge translation cache of virtual address range
+ * @mm: mm_struct containing virtual address range
  * @start: start of virtual address range
  * @end: end of virtual address range
  * @nbits: specifies number of bytes to purge per instruction (num = 1<<(nbits & 0xfc))
@@ -188,21 +189,22 @@ void sn_tlb_migrate_finish(struct mm_struct *mm)
  * 	- cpu_vm_mask is a bit mask that indicates which cpus have loaded the context.
  * 	- cpu_vm_mask is converted into a nodemask of the nodes containing the
  * 	  cpus in cpu_vm_mask.
- *	- if only one bit is set in cpu_vm_mask & it is the current cpu,
+ *	- if only one bit is set in cpu_vm_mask & it is the current cpu & the
- *	  then only the local TLB needs to be flushed. This flushing can be done
+ *	  process is purging its own virtual address range, then only the
- *	  using ptc.l. This is the common case & avoids the global spinlock.
+ *	  local TLB needs to be flushed. This flushing can be done using
+ *	  ptc.l. This is the common case & avoids the global spinlock.
  *	- if multiple cpus have loaded the context, then flushing has to be
  *	  done with ptc.g/MMRs under protection of the global ptc_lock.
  */
 
 void
-sn2_global_tlb_purge(unsigned long start, unsigned long end,
+sn2_global_tlb_purge(struct mm_struct *mm, unsigned long start,
-		     unsigned long nbits)
+		     unsigned long end, unsigned long nbits)
 {
 	int i, opt, shub1, cnode, mynasid, cpu, lcpu = 0, nasid, flushed = 0;
+	int mymm = (mm == current->active_mm);
 	volatile unsigned long *ptc0, *ptc1;
-	unsigned long itc, itc2, flags, data0 = 0, data1 = 0;
+	unsigned long itc, itc2, flags, data0 = 0, data1 = 0, rr_value;
-	struct mm_struct *mm = current->active_mm;
 	short nasids[MAX_NUMNODES], nix;
 	nodemask_t nodes_flushed;
 
@@ -216,9 +218,12 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
 		i++;
 	}
 
+	if (i == 0)
+		return;
+
 	preempt_disable();
 
-	if (likely(i == 1 && lcpu == smp_processor_id())) {
+	if (likely(i == 1 && lcpu == smp_processor_id() && mymm)) {
 		do {
 			ia64_ptcl(start, nbits << 2);
 			start += (1UL << nbits);
@@ -229,7 +234,7 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
 		return;
 	}
 
-	if (atomic_read(&mm->mm_users) == 1) {
+	if (atomic_read(&mm->mm_users) == 1 && mymm) {
 		flush_tlb_mm(mm);
 		__get_cpu_var(ptcstats).change_rid++;
 		preempt_enable();
@@ -241,11 +246,13 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
 	for_each_node_mask(cnode, nodes_flushed)
 		nasids[nix++] = cnodeid_to_nasid(cnode);
 
+	rr_value = (mm->context << 3) | REGION_NUMBER(start);
+
 	shub1 = is_shub1();
 	if (shub1) {
 		data0 = (1UL << SH1_PTC_0_A_SHFT) |
 		    	(nbits << SH1_PTC_0_PS_SHFT) |
-		    	((ia64_get_rr(start) >> 8) << SH1_PTC_0_RID_SHFT) |
+			(rr_value << SH1_PTC_0_RID_SHFT) |
 		    	(1UL << SH1_PTC_0_START_SHFT);
 		ptc0 = (long *)GLOBAL_MMR_PHYS_ADDR(0, SH1_PTC_0);
 		ptc1 = (long *)GLOBAL_MMR_PHYS_ADDR(0, SH1_PTC_1);
@@ -254,7 +261,7 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
 			(nbits << SH2_PTC_PS_SHFT) |
 		    	(1UL << SH2_PTC_START_SHFT);
 		ptc0 = (long *)GLOBAL_MMR_PHYS_ADDR(0, SH2_PTC + 
-			((ia64_get_rr(start) >> 8) << SH2_PTC_RID_SHFT) );
+			(rr_value << SH2_PTC_RID_SHFT));
 		ptc1 = NULL;
 	}
 	
@@ -275,7 +282,7 @@ sn2_global_tlb_purge(unsigned long start, unsigned long end,
 			data0 = (data0 & ~SH2_PTC_ADDR_MASK) | (start & SH2_PTC_ADDR_MASK);
 		for (i = 0; i < nix; i++) {
 			nasid = nasids[i];
-			if ((!(sn2_ptctest & 3)) && unlikely(nasid == mynasid)) {
+			if ((!(sn2_ptctest & 3)) && unlikely(nasid == mynasid && mymm)) {
 				ia64_ptcga(start, nbits << 2);
 				ia64_srlz_i();
 			} else {

arch/ia64/sn/kernel/sn2/sn_hwperf.c

@@ -476,8 +476,8 @@ static int sn_topology_show(struct seq_file *s, void *d)
 				for_each_online_cpu(j) {
 					seq_printf(s, j ? ":%d" : ", dist %d",
 						node_distance(
-						    cpuid_to_cnodeid(i),
+						    cpu_to_node(i),
-						    cpuid_to_cnodeid(j)));
+						    cpu_to_node(j)));
 				}
 				seq_putc(s, '\n');
 			}

arch/ia64/sn/kernel/tiocx.c

@@ -183,11 +183,12 @@ int cx_driver_unregister(struct cx_drv *cx_driver)
  * @part_num: device's part number
  * @mfg_num: device's manufacturer number
  * @hubdev: hub info associated with this device
+ * @bt: board type of the device
  *
  */
 int
 cx_device_register(nasid_t nasid, int part_num, int mfg_num,
-		   struct hubdev_info *hubdev)
+		   struct hubdev_info *hubdev, int bt)
 {
 	struct cx_dev *cx_dev;
 
@@ -200,6 +201,7 @@ cx_device_register(nasid_t nasid, int part_num, int mfg_num,
 	cx_dev->cx_id.mfg_num = mfg_num;
 	cx_dev->cx_id.nasid = nasid;
 	cx_dev->hubdev = hubdev;
+	cx_dev->bt = bt;
 
 	cx_dev->dev.parent = NULL;
 	cx_dev->dev.bus = &tiocx_bus_type;
@@ -238,7 +240,8 @@ static int cx_device_reload(struct cx_dev *cx_dev)
 {
 	cx_device_unregister(cx_dev);
 	return cx_device_register(cx_dev->cx_id.nasid, cx_dev->cx_id.part_num,
-				  cx_dev->cx_id.mfg_num, cx_dev->hubdev);
+				  cx_dev->cx_id.mfg_num, cx_dev->hubdev,
+				  cx_dev->bt);
 }
 
 static inline uint64_t tiocx_intr_alloc(nasid_t nasid, int widget,
@@ -365,26 +368,20 @@ static void tio_corelet_reset(nasid_t nasid, int corelet)
 	udelay(2000);
 }
 
-static int tiocx_btchar_get(int nasid)
+static int is_fpga_tio(int nasid, int *bt)
 {
-	moduleid_t module_id;
+	int ioboard_type;
-	geoid_t geoid;
-	int cnodeid;
 
-	cnodeid = nasid_to_cnodeid(nasid);
+	ioboard_type = ia64_sn_sysctl_ioboard_get(nasid);
-	geoid = cnodeid_get_geoid(cnodeid);
-	module_id = geo_module(geoid);
-	return MODULE_GET_BTCHAR(module_id);
-}
 
-static int is_fpga_brick(int nasid)
+	switch (ioboard_type) {
-{
-	switch (tiocx_btchar_get(nasid)) {
 	case L1_BRICKTYPE_SA:
 	case L1_BRICKTYPE_ATHENA:
-	case L1_BRICKTYPE_DAYTONA:
+	case L1_BOARDTYPE_DAYTONA:
+		*bt = ioboard_type;
 		return 1;
 	}
+
 	return 0;
 }
 
@@ -407,16 +404,22 @@ static int tiocx_reload(struct cx_dev *cx_dev)
 
 	if (bitstream_loaded(nasid)) {
 		uint64_t cx_id;
+		int rv;
 
-		cx_id =
+		rv = ia64_sn_sysctl_tio_clock_reset(nasid);
-		    *(volatile uint64_t *)(TIO_SWIN_BASE(nasid, TIOCX_CORELET) +
+		if (rv) {
+			printk(KERN_ALERT "CX port JTAG reset failed.\n");
+		} else {
+			cx_id = *(volatile uint64_t *)
+				(TIO_SWIN_BASE(nasid, TIOCX_CORELET) +
 					  WIDGET_ID);
-		part_num = XWIDGET_PART_NUM(cx_id);
+			part_num = XWIDGET_PART_NUM(cx_id);
-		mfg_num = XWIDGET_MFG_NUM(cx_id);
+			mfg_num = XWIDGET_MFG_NUM(cx_id);
-		DBG("part= 0x%x, mfg= 0x%x\n", part_num, mfg_num);
+			DBG("part= 0x%x, mfg= 0x%x\n", part_num, mfg_num);
-		/* just ignore it if it's a CE */
+			/* just ignore it if it's a CE */
-		if (part_num == TIO_CE_ASIC_PARTNUM)
+			if (part_num == TIO_CE_ASIC_PARTNUM)
-			return 0;
+				return 0;
+		}
 	}
 
 	cx_dev->cx_id.part_num = part_num;
@@ -436,10 +439,10 @@ static ssize_t show_cxdev_control(struct device *dev, struct device_attribute *a
 {
 	struct cx_dev *cx_dev = to_cx_dev(dev);
 
-	return sprintf(buf, "0x%x 0x%x 0x%x %d\n",
+	return sprintf(buf, "0x%x 0x%x 0x%x 0x%x\n",
 		       cx_dev->cx_id.nasid,
 		       cx_dev->cx_id.part_num, cx_dev->cx_id.mfg_num,
-		       tiocx_btchar_get(cx_dev->cx_id.nasid));
+		       cx_dev->bt);
 }
 
 static ssize_t store_cxdev_control(struct device *dev, struct device_attribute *attr, const char *buf,
@@ -486,13 +489,13 @@ static int __init tiocx_init(void)
 
 	bus_register(&tiocx_bus_type);
 
-	for (cnodeid = 0; cnodeid < MAX_COMPACT_NODES; cnodeid++) {
+	for (cnodeid = 0; cnodeid < num_cnodes; cnodeid++) {
 		nasid_t nasid;
+		int bt;
 
-		if ((nasid = cnodeid_to_nasid(cnodeid)) < 0)
+		nasid = cnodeid_to_nasid(cnodeid);
-			break;	/* No more nasids .. bail out of loop */
 
-		if ((nasid & 0x1) && is_fpga_brick(nasid)) {
+		if ((nasid & 0x1) && is_fpga_tio(nasid, &bt)) {
 			struct hubdev_info *hubdev;
 			struct xwidget_info *widgetp;
 
@@ -512,7 +515,7 @@ static int __init tiocx_init(void)
 
 			if (cx_device_register
 			    (nasid, widgetp->xwi_hwid.part_num,
-			     widgetp->xwi_hwid.mfg_num, hubdev) < 0)
+			     widgetp->xwi_hwid.mfg_num, hubdev, bt) < 0)
 				return -ENXIO;
 			else
 				found_tiocx_device++;

arch/ia64/sn/kernel/xpc.h

@@ -57,7 +57,7 @@
 #define XPC_NASID_FROM_W_B(_w, _b) (((_w) * 64 + (_b)) * 2)
 
 #define XPC_HB_DEFAULT_INTERVAL		5	/* incr HB every x secs */
-#define XPC_HB_CHECK_DEFAULT_TIMEOUT	20	/* check HB every x secs */
+#define XPC_HB_CHECK_DEFAULT_INTERVAL	20	/* check HB every x secs */
 
 /* define the process name of HB checker and the CPU it is pinned to */
 #define XPC_HB_CHECK_THREAD_NAME	"xpc_hb"
@@ -67,34 +67,82 @@
 #define XPC_DISCOVERY_THREAD_NAME	"xpc_discovery"
 
 
-#define XPC_HB_ALLOWED(_p, _v)	((_v)->heartbeating_to_mask & (1UL << (_p)))
-#define XPC_ALLOW_HB(_p, _v)	(_v)->heartbeating_to_mask |= (1UL << (_p))
-#define XPC_DISALLOW_HB(_p, _v)	(_v)->heartbeating_to_mask &= (~(1UL << (_p)))
-
-
 /*
- * Reserved Page provided by SAL.
+ * the reserved page
  *
- * SAL provides one page per partition of reserved memory.  When SAL
+ *   SAL reserves one page of memory per partition for XPC. Though a full page
- * initialization is complete, SAL_signature, SAL_version, partid,
+ *   in length (16384 bytes), its starting address is not page aligned, but it
- * part_nasids, and mach_nasids are set.
+ *   is cacheline aligned. The reserved page consists of the following:
+ *
+ *   reserved page header
+ *
+ *     The first cacheline of the reserved page contains the header
+ *     (struct xpc_rsvd_page). Before SAL initialization has completed,
+ *     SAL has set up the following fields of the reserved page header:
+ *     SAL_signature, SAL_version, partid, and nasids_size. The other
+ *     fields are set up by XPC. (xpc_rsvd_page points to the local
+ *     partition's reserved page.)
+ *
+ *   part_nasids mask
+ *   mach_nasids mask
+ *
+ *     SAL also sets up two bitmaps (or masks), one that reflects the actual
+ *     nasids in this partition (part_nasids), and the other that reflects
+ *     the actual nasids in the entire machine (mach_nasids). We're only
+ *     interested in the even numbered nasids (which contain the processors
+ *     and/or memory), so we only need half as many bits to represent the
+ *     nasids. The part_nasids mask is located starting at the first cacheline
+ *     following the reserved page header. The mach_nasids mask follows right
+ *     after the part_nasids mask. The size in bytes of each mask is reflected
+ *     by the reserved page header field 'nasids_size'. (Local partition's
+ *     mask pointers are xpc_part_nasids and xpc_mach_nasids.)
+ *
+ *   vars
+ *   vars part
+ *
+ *     Immediately following the mach_nasids mask are the XPC variables
+ *     required by other partitions. First are those that are generic to all
+ *     partitions (vars), followed on the next available cacheline by those
+ *     which are partition specific (vars part). These are setup by XPC.
+ *     (Local partition's vars pointers are xpc_vars and xpc_vars_part.)
  *
  * Note: Until vars_pa is set, the partition XPC code has not been initialized.
  */
 struct xpc_rsvd_page {
-	u64 SAL_signature;	/* SAL unique signature */
+	u64 SAL_signature;	/* SAL: unique signature */
-	u64 SAL_version;	/* SAL specified version */
+	u64 SAL_version;	/* SAL: version */
-	u8 partid;		/* partition ID from SAL */
+	u8 partid;		/* SAL: partition ID */
 	u8 version;
-	u8 pad[6];		/* pad to u64 align */
+	u8 pad1[6];		/* align to next u64 in cacheline */
 	volatile u64 vars_pa;
-	u64 part_nasids[XP_NASID_MASK_WORDS] ____cacheline_aligned;
+	struct timespec stamp;	/* time when reserved page was setup by XPC */
-	u64 mach_nasids[XP_NASID_MASK_WORDS] ____cacheline_aligned;
+	u64 pad2[9];		/* align to last u64 in cacheline */
+	u64 nasids_size;	/* SAL: size of each nasid mask in bytes */
 };
-#define XPC_RP_VERSION _XPC_VERSION(1,0) /* version 1.0 of the reserved page */
 
-#define XPC_RSVD_PAGE_ALIGNED_SIZE \
+#define XPC_RP_VERSION _XPC_VERSION(1,1) /* version 1.1 of the reserved page */
-			(L1_CACHE_ALIGN(sizeof(struct xpc_rsvd_page)))
+
+#define XPC_SUPPORTS_RP_STAMP(_version) \
+			(_version >= _XPC_VERSION(1,1))
+
+/*
+ * compare stamps - the return value is:
+ *
+ *	< 0,	if stamp1 < stamp2
+ *	= 0,	if stamp1 == stamp2
+ *	> 0,	if stamp1 > stamp2
+ */
+static inline int
+xpc_compare_stamps(struct timespec *stamp1, struct timespec *stamp2)
+{
+	int ret;
+
+
+	if ((ret = stamp1->tv_sec - stamp2->tv_sec) == 0) {
+		ret = stamp1->tv_nsec - stamp2->tv_nsec;
+	}
+	return ret;
+}
 
 
 /*
@@ -121,11 +169,58 @@ struct xpc_vars {
 	u64 vars_part_pa;
 	u64 amos_page_pa;	/* paddr of page of AMOs from MSPEC driver */
 	AMO_t *amos_page;	/* vaddr of page of AMOs from MSPEC driver */
-	AMO_t *act_amos;	/* pointer to the first activation AMO */
 };
-#define XPC_V_VERSION _XPC_VERSION(3,0) /* version 3.0 of the cross vars */
 
-#define XPC_VARS_ALIGNED_SIZE  (L1_CACHE_ALIGN(sizeof(struct xpc_vars)))
+#define XPC_V_VERSION _XPC_VERSION(3,1) /* version 3.1 of the cross vars */
+
+#define XPC_SUPPORTS_DISENGAGE_REQUEST(_version) \
+			(_version >= _XPC_VERSION(3,1))
+
+
+static inline int
+xpc_hb_allowed(partid_t partid, struct xpc_vars *vars)
+{
+	return ((vars->heartbeating_to_mask & (1UL << partid)) != 0);
+}
+
+static inline void
+xpc_allow_hb(partid_t partid, struct xpc_vars *vars)
+{
+	u64 old_mask, new_mask;
+
+	do {
+		old_mask = vars->heartbeating_to_mask;
+		new_mask = (old_mask | (1UL << partid));
+	} while (cmpxchg(&vars->heartbeating_to_mask, old_mask, new_mask) !=
+							old_mask);
+}
+
+static inline void
+xpc_disallow_hb(partid_t partid, struct xpc_vars *vars)
+{
+	u64 old_mask, new_mask;
+
+	do {
+		old_mask = vars->heartbeating_to_mask;
+		new_mask = (old_mask & ~(1UL << partid));
+	} while (cmpxchg(&vars->heartbeating_to_mask, old_mask, new_mask) !=
+							old_mask);
+}
+
+
+/*
+ * The AMOs page consists of a number of AMO variables which are divided into
+ * four groups, The first two groups are used to identify an IRQ's sender.
+ * These two groups consist of 64 and 128 AMO variables respectively. The last
+ * two groups, consisting of just one AMO variable each, are used to identify
+ * the remote partitions that are currently engaged (from the viewpoint of
+ * the XPC running on the remote partition).
+ */
+#define XPC_NOTIFY_IRQ_AMOS	   0
+#define XPC_ACTIVATE_IRQ_AMOS	   (XPC_NOTIFY_IRQ_AMOS + XP_MAX_PARTITIONS)
+#define XPC_ENGAGED_PARTITIONS_AMO (XPC_ACTIVATE_IRQ_AMOS + XP_NASID_MASK_WORDS)
+#define XPC_DISENGAGE_REQUEST_AMO  (XPC_ENGAGED_PARTITIONS_AMO + 1)
+
 
 /*
  * The following structure describes the per partition specific variables.
@@ -165,6 +260,16 @@ struct xpc_vars_part {
 #define XPC_VP_MAGIC2	0x0073726176435058L  /* 'XPCvars\0'L (little endian) */
 
 
+/* the reserved page sizes and offsets */
+
+#define XPC_RP_HEADER_SIZE	L1_CACHE_ALIGN(sizeof(struct xpc_rsvd_page))
+#define XPC_RP_VARS_SIZE 	L1_CACHE_ALIGN(sizeof(struct xpc_vars))
+
+#define XPC_RP_PART_NASIDS(_rp) (u64 *) ((u8 *) _rp + XPC_RP_HEADER_SIZE)
+#define XPC_RP_MACH_NASIDS(_rp) (XPC_RP_PART_NASIDS(_rp) + xp_nasid_mask_words)
+#define XPC_RP_VARS(_rp)	((struct xpc_vars *) XPC_RP_MACH_NASIDS(_rp) + xp_nasid_mask_words)
+#define XPC_RP_VARS_PART(_rp)	(struct xpc_vars_part *) ((u8 *) XPC_RP_VARS(rp) + XPC_RP_VARS_SIZE)
+
 
 /*
  * Functions registered by add_timer() or called by kernel_thread() only
@@ -349,6 +454,9 @@ struct xpc_channel {
 	atomic_t n_on_msg_allocate_wq;   /* #on msg allocation wait queue */
 	wait_queue_head_t msg_allocate_wq; /* msg allocation wait queue */
 
+	u8 delayed_IPI_flags;		/* IPI flags received, but delayed */
+					/* action until channel disconnected */
+
 	/* queue of msg senders who want to be notified when msg received */
 
 	atomic_t n_to_notify;		/* #of msg senders to notify */
@@ -358,7 +466,7 @@ struct xpc_channel {
 	void *key;			/* pointer to user's key */
 
 	struct semaphore msg_to_pull_sema; /* next msg to pull serialization */
-	struct semaphore teardown_sema;    /* wait for teardown completion */
+	struct semaphore wdisconnect_sema; /* wait for channel disconnect */
 
 	struct xpc_openclose_args *local_openclose_args; /* args passed on */
 					/* opening or closing of channel */
@@ -410,6 +518,8 @@ struct xpc_channel {
 
 #define	XPC_C_DISCONNECTED	0x00002000 /* channel is disconnected */
 #define	XPC_C_DISCONNECTING	0x00004000 /* channel is being disconnected */
+#define	XPC_C_DISCONNECTCALLOUT	0x00008000 /* chan disconnected callout made */
+#define	XPC_C_WDISCONNECT	0x00010000 /* waiting for channel disconnect */
 
 
 
@@ -422,6 +532,8 @@ struct xpc_partition {
 
 	/* XPC HB infrastructure */
 
+	u8 remote_rp_version;		/* version# of partition's rsvd pg */
+	struct timespec remote_rp_stamp;/* time when rsvd pg was initialized */
 	u64 remote_rp_pa;		/* phys addr of partition's rsvd pg */
 	u64 remote_vars_pa;		/* phys addr of partition's vars */
 	u64 remote_vars_part_pa;	/* phys addr of partition's vars part */
@@ -432,14 +544,18 @@ struct xpc_partition {
 	u32 act_IRQ_rcvd;		/* IRQs since activation */
 	spinlock_t act_lock;		/* protect updating of act_state */
 	u8 act_state;			/* from XPC HB viewpoint */
+	u8 remote_vars_version;		/* version# of partition's vars */
 	enum xpc_retval reason;		/* reason partition is deactivating */
 	int reason_line;		/* line# deactivation initiated from */
 	int reactivate_nasid;		/* nasid in partition to reactivate */
 
+	unsigned long disengage_request_timeout; /* timeout in jiffies */
+	struct timer_list disengage_request_timer;
+
 
 	/* XPC infrastructure referencing and teardown control */
 
-	volatile u8 setup_state;			/* infrastructure setup state */
+	volatile u8 setup_state;	/* infrastructure setup state */
 	wait_queue_head_t teardown_wq;	/* kthread waiting to teardown infra */
 	atomic_t references;		/* #of references to infrastructure */
 
@@ -454,6 +570,7 @@ struct xpc_partition {
 
 	u8 nchannels;		   /* #of defined channels supported */
 	atomic_t nchannels_active; /* #of channels that are not DISCONNECTED */
+	atomic_t nchannels_engaged;/* #of channels engaged with remote part */
 	struct xpc_channel *channels;/* array of channel structures */
 
 	void *local_GPs_base;	  /* base address of kmalloc'd space */
@@ -518,6 +635,7 @@ struct xpc_partition {
 #define XPC_P_TORNDOWN		0x03	/* infrastructure is torndown */
 
 
+
 /*
  * struct xpc_partition IPI_timer #of seconds to wait before checking for
  * dropped IPIs. These occur whenever an IPI amo write doesn't complete until
@@ -526,6 +644,13 @@ struct xpc_partition {
 #define XPC_P_DROPPED_IPI_WAIT	(0.25 * HZ)
 
 
+/* number of seconds to wait for other partitions to disengage */
+#define XPC_DISENGAGE_REQUEST_DEFAULT_TIMELIMIT	90
+
+/* interval in seconds to print 'waiting disengagement' messages */
+#define XPC_DISENGAGE_PRINTMSG_INTERVAL		10
+
+
 #define XPC_PARTID(_p)	((partid_t) ((_p) - &xpc_partitions[0]))
 
 
@@ -534,24 +659,20 @@ struct xpc_partition {
 extern struct xpc_registration xpc_registrations[];
 
 
-/* >>> found in xpc_main.c only */
+/* found in xpc_main.c */
 extern struct device *xpc_part;
 extern struct device *xpc_chan;
+extern int xpc_disengage_request_timelimit;
 extern irqreturn_t xpc_notify_IRQ_handler(int, void *, struct pt_regs *);
 extern void xpc_dropped_IPI_check(struct xpc_partition *);
+extern void xpc_activate_partition(struct xpc_partition *);
 extern void xpc_activate_kthreads(struct xpc_channel *, int);
 extern void xpc_create_kthreads(struct xpc_channel *, int);
 extern void xpc_disconnect_wait(int);
 
 
-/* found in xpc_main.c and efi-xpc.c */
-extern void xpc_activate_partition(struct xpc_partition *);
-
-
 /* found in xpc_partition.c */
 extern int xpc_exiting;
-extern int xpc_hb_interval;
-extern int xpc_hb_check_interval;
 extern struct xpc_vars *xpc_vars;
 extern struct xpc_rsvd_page *xpc_rsvd_page;
 extern struct xpc_vars_part *xpc_vars_part;
@@ -561,6 +682,7 @@ extern struct xpc_rsvd_page *xpc_rsvd_page_init(void);
 extern void xpc_allow_IPI_ops(void);
 extern void xpc_restrict_IPI_ops(void);
 extern int xpc_identify_act_IRQ_sender(void);
+extern int xpc_partition_disengaged(struct xpc_partition *);
 extern enum xpc_retval xpc_mark_partition_active(struct xpc_partition *);
 extern void xpc_mark_partition_inactive(struct xpc_partition *);
 extern void xpc_discovery(void);
@@ -585,8 +707,8 @@ extern void xpc_connected_callout(struct xpc_channel *);
 extern void xpc_deliver_msg(struct xpc_channel *);
 extern void xpc_disconnect_channel(const int, struct xpc_channel *,
 					enum xpc_retval, unsigned long *);
-extern void xpc_disconnected_callout(struct xpc_channel *);
+extern void xpc_disconnecting_callout(struct xpc_channel *);
-extern void xpc_partition_down(struct xpc_partition *, enum xpc_retval);
+extern void xpc_partition_going_down(struct xpc_partition *, enum xpc_retval);
 extern void xpc_teardown_infrastructure(struct xpc_partition *);
 
 
@@ -673,6 +795,157 @@ xpc_part_ref(struct xpc_partition *part)
 
 
 
+/*
+ * This next set of inlines are used to keep track of when a partition is
+ * potentially engaged in accessing memory belonging to another partition.
+ */
+
+static inline void
+xpc_mark_partition_engaged(struct xpc_partition *part)
+{
+	unsigned long irq_flags;
+	AMO_t *amo = (AMO_t *) __va(part->remote_amos_page_pa +
+				(XPC_ENGAGED_PARTITIONS_AMO * sizeof(AMO_t)));
+
+
+	local_irq_save(irq_flags);
+
+	/* set bit corresponding to our partid in remote partition's AMO */
+	FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_OR,
+						(1UL << sn_partition_id));
+	/*
+	 * We must always use the nofault function regardless of whether we
+	 * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
+	 * didn't, we'd never know that the other partition is down and would
+	 * keep sending IPIs and AMOs to it until the heartbeat times out.
+	 */
+	(void) xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->
+				variable), xp_nofault_PIOR_target));
+
+	local_irq_restore(irq_flags);
+}
+
+static inline void
+xpc_mark_partition_disengaged(struct xpc_partition *part)
+{
+	unsigned long irq_flags;
+	AMO_t *amo = (AMO_t *) __va(part->remote_amos_page_pa +
+				(XPC_ENGAGED_PARTITIONS_AMO * sizeof(AMO_t)));
+
+
+	local_irq_save(irq_flags);
+
+	/* clear bit corresponding to our partid in remote partition's AMO */
+	FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_AND,
+						~(1UL << sn_partition_id));
+	/*
+	 * We must always use the nofault function regardless of whether we
+	 * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
+	 * didn't, we'd never know that the other partition is down and would
+	 * keep sending IPIs and AMOs to it until the heartbeat times out.
+	 */
+	(void) xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->
+				variable), xp_nofault_PIOR_target));
+
+	local_irq_restore(irq_flags);
+}
+
+static inline void
+xpc_request_partition_disengage(struct xpc_partition *part)
+{
+	unsigned long irq_flags;
+	AMO_t *amo = (AMO_t *) __va(part->remote_amos_page_pa +
+				(XPC_DISENGAGE_REQUEST_AMO * sizeof(AMO_t)));
+
+
+	local_irq_save(irq_flags);
+
+	/* set bit corresponding to our partid in remote partition's AMO */
+	FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_OR,
+						(1UL << sn_partition_id));
+	/*
+	 * We must always use the nofault function regardless of whether we
+	 * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
+	 * didn't, we'd never know that the other partition is down and would
+	 * keep sending IPIs and AMOs to it until the heartbeat times out.
+	 */
+	(void) xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->
+				variable), xp_nofault_PIOR_target));
+
+	local_irq_restore(irq_flags);
+}
+
+static inline void
+xpc_cancel_partition_disengage_request(struct xpc_partition *part)
+{
+	unsigned long irq_flags;
+	AMO_t *amo = (AMO_t *) __va(part->remote_amos_page_pa +
+				(XPC_DISENGAGE_REQUEST_AMO * sizeof(AMO_t)));
+
+
+	local_irq_save(irq_flags);
+
+	/* clear bit corresponding to our partid in remote partition's AMO */
+	FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_AND,
+						~(1UL << sn_partition_id));
+	/*
+	 * We must always use the nofault function regardless of whether we
+	 * are on a Shub 1.1 system or a Shub 1.2 slice 0xc processor. If we
+	 * didn't, we'd never know that the other partition is down and would
+	 * keep sending IPIs and AMOs to it until the heartbeat times out.
+	 */
+	(void) xp_nofault_PIOR((u64 *) GLOBAL_MMR_ADDR(NASID_GET(&amo->
+				variable), xp_nofault_PIOR_target));
+
+	local_irq_restore(irq_flags);
+}
+
+static inline u64
+xpc_partition_engaged(u64 partid_mask)
+{
+	AMO_t *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO;
+
+
+	/* return our partition's AMO variable ANDed with partid_mask */
+	return (FETCHOP_LOAD_OP(TO_AMO((u64) &amo->variable), FETCHOP_LOAD) &
+								partid_mask);
+}
+
+static inline u64
+xpc_partition_disengage_requested(u64 partid_mask)
+{
+	AMO_t *amo = xpc_vars->amos_page + XPC_DISENGAGE_REQUEST_AMO;
+
+
+	/* return our partition's AMO variable ANDed with partid_mask */
+	return (FETCHOP_LOAD_OP(TO_AMO((u64) &amo->variable), FETCHOP_LOAD) &
+								partid_mask);
+}
+
+static inline void
+xpc_clear_partition_engaged(u64 partid_mask)
+{
+	AMO_t *amo = xpc_vars->amos_page + XPC_ENGAGED_PARTITIONS_AMO;
+
+
+	/* clear bit(s) based on partid_mask in our partition's AMO */
+	FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_AND,
+								~partid_mask);
+}
+
+static inline void
+xpc_clear_partition_disengage_request(u64 partid_mask)
+{
+	AMO_t *amo = xpc_vars->amos_page + XPC_DISENGAGE_REQUEST_AMO;
+
+
+	/* clear bit(s) based on partid_mask in our partition's AMO */
+	FETCHOP_STORE_OP(TO_AMO((u64) &amo->variable), FETCHOP_AND,
+								~partid_mask);
+}
+
+
+
 /*
  * The following set of macros and inlines are used for the sending and
  * receiving of IPIs (also known as IRQs). There are two flavors of IPIs,
@@ -722,13 +995,13 @@ xpc_IPI_send(AMO_t *amo, u64 flag, int nasid, int phys_cpuid, int vector)
  * Flag the appropriate AMO variable and send an IPI to the specified node.
  */
 static inline void
-xpc_activate_IRQ_send(u64 amos_page, int from_nasid, int to_nasid,
+xpc_activate_IRQ_send(u64 amos_page_pa, int from_nasid, int to_nasid,
 			int to_phys_cpuid)
 {
 	int w_index = XPC_NASID_W_INDEX(from_nasid);
 	int b_index = XPC_NASID_B_INDEX(from_nasid);
-	AMO_t *amos = (AMO_t *) __va(amos_page +
+	AMO_t *amos = (AMO_t *) __va(amos_page_pa +
-					(XP_MAX_PARTITIONS * sizeof(AMO_t)));
+				(XPC_ACTIVATE_IRQ_AMOS * sizeof(AMO_t)));
 
 
 	(void) xpc_IPI_send(&amos[w_index], (1UL << b_index), to_nasid,
@@ -756,6 +1029,13 @@ xpc_IPI_send_reactivate(struct xpc_partition *part)
 				xpc_vars->act_nasid, xpc_vars->act_phys_cpuid);
 }
 
+static inline void
+xpc_IPI_send_disengage(struct xpc_partition *part)
+{
+	xpc_activate_IRQ_send(part->remote_amos_page_pa, cnodeid_to_nasid(0),
+			part->remote_act_nasid, part->remote_act_phys_cpuid);
+}
+
 
 /*
  * IPIs associated with SGI_XPC_NOTIFY IRQ.
@@ -836,6 +1116,7 @@ xpc_notify_IRQ_send_local(struct xpc_channel *ch, u8 ipi_flag,
 
 /* given an AMO variable and a channel#, get its associated IPI flags */
 #define XPC_GET_IPI_FLAGS(_amo, _c)	((u8) (((_amo) >> ((_c) * 8)) & 0xff))
+#define XPC_SET_IPI_FLAGS(_amo, _c, _f)	(_amo) |= ((u64) (_f) << ((_c) * 8))
 
 #define	XPC_ANY_OPENCLOSE_IPI_FLAGS_SET(_amo) ((_amo) & 0x0f0f0f0f0f0f0f0f)
 #define XPC_ANY_MSG_IPI_FLAGS_SET(_amo)       ((_amo) & 0x1010101010101010)
@@ -903,17 +1184,18 @@ xpc_IPI_send_local_msgrequest(struct xpc_channel *ch)
  * cacheable mapping for the entire region. This will prevent speculative
  * reading of cached copies of our lines from being issued which will cause
  * a PI FSB Protocol error to be generated by the SHUB. For XPC, we need 64
- * (XP_MAX_PARTITIONS) AMO variables for message notification (xpc_main.c)
+ * AMO variables (based on XP_MAX_PARTITIONS) for message notification and an
- * and an additional 16 AMO variables for partition activation (xpc_hb.c).
+ * additional 128 AMO variables (based on XP_NASID_MASK_WORDS) for partition
+ * activation and 2 AMO variables for partition deactivation.
  */
 static inline AMO_t *
-xpc_IPI_init(partid_t partid)
+xpc_IPI_init(int index)
 {
-	AMO_t *part_amo = xpc_vars->amos_page + partid;
+	AMO_t *amo = xpc_vars->amos_page + index;
 
 
-	xpc_IPI_receive(part_amo);
+	(void) xpc_IPI_receive(amo);	/* clear AMO variable */
-	return part_amo;
+	return amo;
 }
 
 

arch/ia64/sn/kernel/xpc_channel.c

@@ -57,6 +57,7 @@ xpc_initialize_channels(struct xpc_partition *part, partid_t partid)
 
 		spin_lock_init(&ch->lock);
 		sema_init(&ch->msg_to_pull_sema, 1);	/* mutex */
+		sema_init(&ch->wdisconnect_sema, 0);	/* event wait */
 
 		atomic_set(&ch->n_on_msg_allocate_wq, 0);
 		init_waitqueue_head(&ch->msg_allocate_wq);
@@ -166,6 +167,7 @@ xpc_setup_infrastructure(struct xpc_partition *part)
 	xpc_initialize_channels(part, partid);
 
 	atomic_set(&part->nchannels_active, 0);
+	atomic_set(&part->nchannels_engaged, 0);
 
 
 	/* local_IPI_amo were set to 0 by an earlier memset() */
@@ -555,8 +557,6 @@ xpc_allocate_msgqueues(struct xpc_channel *ch)
 		sema_init(&ch->notify_queue[i].sema, 0);
 	}
 
-	sema_init(&ch->teardown_sema, 0);	/* event wait */
-
 	spin_lock_irqsave(&ch->lock, irq_flags);
 	ch->flags |= XPC_C_SETUP;
 	spin_unlock_irqrestore(&ch->lock, irq_flags);
@@ -625,6 +625,55 @@ xpc_process_connect(struct xpc_channel *ch, unsigned long *irq_flags)
 }
 
 
+/*
+ * Notify those who wanted to be notified upon delivery of their message.
+ */
+static void
+xpc_notify_senders(struct xpc_channel *ch, enum xpc_retval reason, s64 put)
+{
+	struct xpc_notify *notify;
+	u8 notify_type;
+	s64 get = ch->w_remote_GP.get - 1;
+
+
+	while (++get < put && atomic_read(&ch->n_to_notify) > 0) {
+
+		notify = &ch->notify_queue[get % ch->local_nentries];
+
+		/*
+		 * See if the notify entry indicates it was associated with
+		 * a message who's sender wants to be notified. It is possible
+		 * that it is, but someone else is doing or has done the
+		 * notification.
+		 */
+		notify_type = notify->type;
+		if (notify_type == 0 ||
+				cmpxchg(&notify->type, notify_type, 0) !=
+								notify_type) {
+			continue;
+		}
+
+		DBUG_ON(notify_type != XPC_N_CALL);
+
+		atomic_dec(&ch->n_to_notify);
+
+		if (notify->func != NULL) {
+			dev_dbg(xpc_chan, "notify->func() called, notify=0x%p, "
+				"msg_number=%ld, partid=%d, channel=%d\n",
+				(void *) notify, get, ch->partid, ch->number);
+
+			notify->func(reason, ch->partid, ch->number,
+								notify->key);
+
+			dev_dbg(xpc_chan, "notify->func() returned, "
+				"notify=0x%p, msg_number=%ld, partid=%d, "
+				"channel=%d\n", (void *) notify, get,
+				ch->partid, ch->number);
+		}
+	}
+}
+
+
 /*
  * Free up message queues and other stuff that were allocated for the specified
  * channel.
@@ -669,9 +718,6 @@ xpc_free_msgqueues(struct xpc_channel *ch)
 		ch->remote_msgqueue = NULL;
 		kfree(ch->notify_queue);
 		ch->notify_queue = NULL;
-
-		/* in case someone is waiting for the teardown to complete */
-		up(&ch->teardown_sema);
 	}
 }
 
@@ -683,7 +729,7 @@ static void
 xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
 {
 	struct xpc_partition *part = &xpc_partitions[ch->partid];
-	u32 ch_flags = ch->flags;
+	u32 channel_was_connected = (ch->flags & XPC_C_WASCONNECTED);
 
 
 	DBUG_ON(!spin_is_locked(&ch->lock));
@@ -701,12 +747,13 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
 	}
 	DBUG_ON(atomic_read(&ch->kthreads_assigned) != 0);
 
-	/* it's now safe to free the channel's message queues */
+	if (part->act_state == XPC_P_DEACTIVATING) {
+		/* can't proceed until the other side disengages from us */
+		if (xpc_partition_engaged(1UL << ch->partid)) {
+			return;
+		}
 
-	xpc_free_msgqueues(ch);
+	} else {
-	DBUG_ON(ch->flags & XPC_C_SETUP);
-
-	if (part->act_state != XPC_P_DEACTIVATING) {
 
 		/* as long as the other side is up do the full protocol */
 
@@ -724,16 +771,42 @@ xpc_process_disconnect(struct xpc_channel *ch, unsigned long *irq_flags)
 		}
 	}
 
+	/* wake those waiting for notify completion */
+	if (atomic_read(&ch->n_to_notify) > 0) {
+		/* >>> we do callout while holding ch->lock */
+		xpc_notify_senders(ch, ch->reason, ch->w_local_GP.put);
+	}
+
 	/* both sides are disconnected now */
 
-	ch->flags = XPC_C_DISCONNECTED;	/* clear all flags, but this one */
+	/* it's now safe to free the channel's message queues */
+	xpc_free_msgqueues(ch);
+
+	/* mark disconnected, clear all other flags except XPC_C_WDISCONNECT */
+	ch->flags = (XPC_C_DISCONNECTED | (ch->flags & XPC_C_WDISCONNECT));
 
 	atomic_dec(&part->nchannels_active);
 
-	if (ch_flags & XPC_C_WASCONNECTED) {
+	if (channel_was_connected) {
 		dev_info(xpc_chan, "channel %d to partition %d disconnected, "
 			"reason=%d\n", ch->number, ch->partid, ch->reason);
 	}
+
+	if (ch->flags & XPC_C_WDISCONNECT) {
+		spin_unlock_irqrestore(&ch->lock, *irq_flags);
+		up(&ch->wdisconnect_sema);
+		spin_lock_irqsave(&ch->lock, *irq_flags);
+
+	} else if (ch->delayed_IPI_flags) {
+		if (part->act_state != XPC_P_DEACTIVATING) {
+			/* time to take action on any delayed IPI flags */
+			spin_lock(&part->IPI_lock);
+			XPC_SET_IPI_FLAGS(part->local_IPI_amo, ch->number,
+							ch->delayed_IPI_flags);
+			spin_unlock(&part->IPI_lock);
+		}
+		ch->delayed_IPI_flags = 0;
+	}
 }
 
 
@@ -754,6 +827,19 @@ xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
 
 	spin_lock_irqsave(&ch->lock, irq_flags);
 
+again:
+
+	if ((ch->flags & XPC_C_DISCONNECTED) &&
+					(ch->flags & XPC_C_WDISCONNECT)) {
+		/*
+		 * Delay processing IPI flags until thread waiting disconnect
+		 * has had a chance to see that the channel is disconnected.
+		 */
+		ch->delayed_IPI_flags |= IPI_flags;
+		spin_unlock_irqrestore(&ch->lock, irq_flags);
+		return;
+	}
+
 
 	if (IPI_flags & XPC_IPI_CLOSEREQUEST) {
 
@@ -764,7 +850,7 @@ xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
 		/*
 		 * If RCLOSEREQUEST is set, we're probably waiting for
 		 * RCLOSEREPLY. We should find it and a ROPENREQUEST packed
-		 * with this RCLOSEQREUQEST in the IPI_flags.
+		 * with this RCLOSEREQUEST in the IPI_flags.
 		 */
 
 		if (ch->flags & XPC_C_RCLOSEREQUEST) {
@@ -779,14 +865,22 @@ xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
 
 			/* both sides have finished disconnecting */
 			xpc_process_disconnect(ch, &irq_flags);
+			DBUG_ON(!(ch->flags & XPC_C_DISCONNECTED));
+			goto again;
 		}
 
 		if (ch->flags & XPC_C_DISCONNECTED) {
-			// >>> explain this section
-
 			if (!(IPI_flags & XPC_IPI_OPENREQUEST)) {
-				DBUG_ON(part->act_state !=
+				if ((XPC_GET_IPI_FLAGS(part->local_IPI_amo,
-							XPC_P_DEACTIVATING);
+					 ch_number) & XPC_IPI_OPENREQUEST)) {
+
+					DBUG_ON(ch->delayed_IPI_flags != 0);
+					spin_lock(&part->IPI_lock);
+					XPC_SET_IPI_FLAGS(part->local_IPI_amo,
+							ch_number,
+							XPC_IPI_CLOSEREQUEST);
+					spin_unlock(&part->IPI_lock);
+				}
 				spin_unlock_irqrestore(&ch->lock, irq_flags);
 				return;
 			}
@@ -816,9 +910,13 @@ xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
 			}
 
 			XPC_DISCONNECT_CHANNEL(ch, reason, &irq_flags);
-		} else {
+
-			xpc_process_disconnect(ch, &irq_flags);
+			DBUG_ON(IPI_flags & XPC_IPI_CLOSEREPLY);
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
+			return;
 		}
+
+		xpc_process_disconnect(ch, &irq_flags);
 	}
 
 
@@ -834,7 +932,20 @@ xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
 		}
 
 		DBUG_ON(!(ch->flags & XPC_C_CLOSEREQUEST));
-		DBUG_ON(!(ch->flags & XPC_C_RCLOSEREQUEST));
+
+		if (!(ch->flags & XPC_C_RCLOSEREQUEST)) {
+			if ((XPC_GET_IPI_FLAGS(part->local_IPI_amo, ch_number)
+						& XPC_IPI_CLOSEREQUEST)) {
+
+				DBUG_ON(ch->delayed_IPI_flags != 0);
+				spin_lock(&part->IPI_lock);
+				XPC_SET_IPI_FLAGS(part->local_IPI_amo,
+						ch_number, XPC_IPI_CLOSEREPLY);
+				spin_unlock(&part->IPI_lock);
+			}
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
+			return;
+		}
 
 		ch->flags |= XPC_C_RCLOSEREPLY;
 
@@ -852,8 +963,14 @@ xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
 			"channel=%d\n", args->msg_size, args->local_nentries,
 			ch->partid, ch->number);
 
-		if ((ch->flags & XPC_C_DISCONNECTING) ||
+		if (part->act_state == XPC_P_DEACTIVATING ||
-					part->act_state == XPC_P_DEACTIVATING) {
+					(ch->flags & XPC_C_ROPENREQUEST)) {
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
+			return;
+		}
+
+		if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_WDISCONNECT)) {
+			ch->delayed_IPI_flags |= XPC_IPI_OPENREQUEST;
 			spin_unlock_irqrestore(&ch->lock, irq_flags);
 			return;
 		}
@@ -867,8 +984,11 @@ xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
 		 *      msg_size = size of channel's messages in bytes
 		 *      local_nentries = remote partition's local_nentries
 		 */
-		DBUG_ON(args->msg_size == 0);
+		if (args->msg_size == 0 || args->local_nentries == 0) {
-		DBUG_ON(args->local_nentries == 0);
+			/* assume OPENREQUEST was delayed by mistake */
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
+			return;
+		}
 
 		ch->flags |= (XPC_C_ROPENREQUEST | XPC_C_CONNECTING);
 		ch->remote_nentries = args->local_nentries;
@@ -906,7 +1026,13 @@ xpc_process_openclose_IPI(struct xpc_partition *part, int ch_number,
 			spin_unlock_irqrestore(&ch->lock, irq_flags);
 			return;
 		}
-		DBUG_ON(!(ch->flags & XPC_C_OPENREQUEST));
+		if (!(ch->flags & XPC_C_OPENREQUEST)) {
+			XPC_DISCONNECT_CHANNEL(ch, xpcOpenCloseError,
+								&irq_flags);
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
+			return;
+		}
+
 		DBUG_ON(!(ch->flags & XPC_C_ROPENREQUEST));
 		DBUG_ON(ch->flags & XPC_C_CONNECTED);
 
@@ -960,8 +1086,8 @@ xpc_connect_channel(struct xpc_channel *ch)
 	struct xpc_registration *registration = &xpc_registrations[ch->number];
 
 
-	if (down_interruptible(&registration->sema) != 0) {
+	if (down_trylock(&registration->sema) != 0) {
-		return xpcInterrupted;
+		return xpcRetry;
 	}
 
 	if (!XPC_CHANNEL_REGISTERED(ch->number)) {
@@ -1039,55 +1165,6 @@ xpc_connect_channel(struct xpc_channel *ch)
 }
 
 
-/*
- * Notify those who wanted to be notified upon delivery of their message.
- */
-static void
-xpc_notify_senders(struct xpc_channel *ch, enum xpc_retval reason, s64 put)
-{
-	struct xpc_notify *notify;
-	u8 notify_type;
-	s64 get = ch->w_remote_GP.get - 1;
-
-
-	while (++get < put && atomic_read(&ch->n_to_notify) > 0) {
-
-		notify = &ch->notify_queue[get % ch->local_nentries];
-
-		/*
-		 * See if the notify entry indicates it was associated with
-		 * a message who's sender wants to be notified. It is possible
-		 * that it is, but someone else is doing or has done the
-		 * notification.
-		 */
-		notify_type = notify->type;
-		if (notify_type == 0 ||
-				cmpxchg(&notify->type, notify_type, 0) !=
-								notify_type) {
-			continue;
-		}
-
-		DBUG_ON(notify_type != XPC_N_CALL);
-
-		atomic_dec(&ch->n_to_notify);
-
-		if (notify->func != NULL) {
-			dev_dbg(xpc_chan, "notify->func() called, notify=0x%p, "
-				"msg_number=%ld, partid=%d, channel=%d\n",
-				(void *) notify, get, ch->partid, ch->number);
-
-			notify->func(reason, ch->partid, ch->number,
-								notify->key);
-
-			dev_dbg(xpc_chan, "notify->func() returned, "
-				"notify=0x%p, msg_number=%ld, partid=%d, "
-				"channel=%d\n", (void *) notify, get,
-				ch->partid, ch->number);
-		}
-	}
-}
-
-
 /*
  * Clear some of the msg flags in the local message queue.
  */
@@ -1240,6 +1317,7 @@ xpc_process_channel_activity(struct xpc_partition *part)
 	u64 IPI_amo, IPI_flags;
 	struct xpc_channel *ch;
 	int ch_number;
+	u32 ch_flags;
 
 
 	IPI_amo = xpc_get_IPI_flags(part);
@@ -1266,8 +1344,9 @@ xpc_process_channel_activity(struct xpc_partition *part)
 			xpc_process_openclose_IPI(part, ch_number, IPI_flags);
 		}
 
+		ch_flags = ch->flags;	/* need an atomic snapshot of flags */
 
-		if (ch->flags & XPC_C_DISCONNECTING) {
+		if (ch_flags & XPC_C_DISCONNECTING) {
 			spin_lock_irqsave(&ch->lock, irq_flags);
 			xpc_process_disconnect(ch, &irq_flags);
 			spin_unlock_irqrestore(&ch->lock, irq_flags);
@@ -1278,9 +1357,9 @@ xpc_process_channel_activity(struct xpc_partition *part)
 			continue;
 		}
 
-		if (!(ch->flags & XPC_C_CONNECTED)) {
+		if (!(ch_flags & XPC_C_CONNECTED)) {
-			if (!(ch->flags & XPC_C_OPENREQUEST)) {
+			if (!(ch_flags & XPC_C_OPENREQUEST)) {
-				DBUG_ON(ch->flags & XPC_C_SETUP);
+				DBUG_ON(ch_flags & XPC_C_SETUP);
 				(void) xpc_connect_channel(ch);
 			} else {
 				spin_lock_irqsave(&ch->lock, irq_flags);
@@ -1305,8 +1384,8 @@ xpc_process_channel_activity(struct xpc_partition *part)
 
 
 /*
- * XPC's heartbeat code calls this function to inform XPC that a partition has
+ * XPC's heartbeat code calls this function to inform XPC that a partition is
- * gone down.  XPC responds by tearing down the XPartition Communication
+ * going down.  XPC responds by tearing down the XPartition Communication
  * infrastructure used for the just downed partition.
  *
  * XPC's heartbeat code will never call this function and xpc_partition_up()
@@ -1314,7 +1393,7 @@ xpc_process_channel_activity(struct xpc_partition *part)
  * at the same time.
  */
 void
-xpc_partition_down(struct xpc_partition *part, enum xpc_retval reason)
+xpc_partition_going_down(struct xpc_partition *part, enum xpc_retval reason)
 {
 	unsigned long irq_flags;
 	int ch_number;
@@ -1330,12 +1409,11 @@ xpc_partition_down(struct xpc_partition *part, enum xpc_retval reason)
 	}
 
 
-	/* disconnect all channels associated with the downed partition */
+	/* disconnect channels associated with the partition going down */
 
 	for (ch_number = 0; ch_number < part->nchannels; ch_number++) {
 		ch = &part->channels[ch_number];
 
-
 		xpc_msgqueue_ref(ch);
 		spin_lock_irqsave(&ch->lock, irq_flags);
 
@@ -1370,6 +1448,7 @@ xpc_teardown_infrastructure(struct xpc_partition *part)
 	 * this partition.
 	 */
 
+	DBUG_ON(atomic_read(&part->nchannels_engaged) != 0);
 	DBUG_ON(atomic_read(&part->nchannels_active) != 0);
 	DBUG_ON(part->setup_state != XPC_P_SETUP);
 	part->setup_state = XPC_P_WTEARDOWN;
@@ -1428,19 +1507,11 @@ xpc_initiate_connect(int ch_number)
 		if (xpc_part_ref(part)) {
 			ch = &part->channels[ch_number];
 
-			if (!(ch->flags & XPC_C_DISCONNECTING)) {
+			/*
-				DBUG_ON(ch->flags & XPC_C_OPENREQUEST);
+			 * Initiate the establishment of a connection on the
-				DBUG_ON(ch->flags & XPC_C_CONNECTED);
+			 * newly registered channel to the remote partition.
-				DBUG_ON(ch->flags & XPC_C_SETUP);
+			 */
-
+			xpc_wakeup_channel_mgr(part);
-				/*
-				 * Initiate the establishment of a connection
-				 * on the newly registered channel to the
-				 * remote partition.
-				 */
-				xpc_wakeup_channel_mgr(part);
-			}
-
 			xpc_part_deref(part);
 		}
 	}
@@ -1450,9 +1521,6 @@ xpc_initiate_connect(int ch_number)
 void
 xpc_connected_callout(struct xpc_channel *ch)
 {
-	unsigned long irq_flags;
-
-
 	/* let the registerer know that a connection has been established */
 
 	if (ch->func != NULL) {
@@ -1465,10 +1533,6 @@ xpc_connected_callout(struct xpc_channel *ch)
 		dev_dbg(xpc_chan, "ch->func() returned, reason=xpcConnected, "
 			"partid=%d, channel=%d\n", ch->partid, ch->number);
 	}
-
-	spin_lock_irqsave(&ch->lock, irq_flags);
-	ch->flags |= XPC_C_CONNECTCALLOUT;
-	spin_unlock_irqrestore(&ch->lock, irq_flags);
 }
 
 
@@ -1506,8 +1570,12 @@ xpc_initiate_disconnect(int ch_number)
 
 			spin_lock_irqsave(&ch->lock, irq_flags);
 
-			XPC_DISCONNECT_CHANNEL(ch, xpcUnregistering,
+			if (!(ch->flags & XPC_C_DISCONNECTED)) {
+				ch->flags |= XPC_C_WDISCONNECT;
+
+				XPC_DISCONNECT_CHANNEL(ch, xpcUnregistering,
 								&irq_flags);
+			}
 
 			spin_unlock_irqrestore(&ch->lock, irq_flags);
 
@@ -1523,8 +1591,9 @@ xpc_initiate_disconnect(int ch_number)
 /*
  * To disconnect a channel, and reflect it back to all who may be waiting.
  *
- * >>> An OPEN is not allowed until XPC_C_DISCONNECTING is cleared by
+ * An OPEN is not allowed until XPC_C_DISCONNECTING is cleared by
- * >>> xpc_free_msgqueues().
+ * xpc_process_disconnect(), and if set, XPC_C_WDISCONNECT is cleared by
+ * xpc_disconnect_wait().
  *
  * THE CHANNEL IS TO BE LOCKED BY THE CALLER AND WILL REMAIN LOCKED UPON RETURN.
  */
@@ -1532,7 +1601,7 @@ void
 xpc_disconnect_channel(const int line, struct xpc_channel *ch,
 			enum xpc_retval reason, unsigned long *irq_flags)
 {
-	u32 flags;
+	u32 channel_was_connected = (ch->flags & XPC_C_CONNECTED);
 
 
 	DBUG_ON(!spin_is_locked(&ch->lock));
@@ -1547,37 +1616,28 @@ xpc_disconnect_channel(const int line, struct xpc_channel *ch,
 
 	XPC_SET_REASON(ch, reason, line);
 
-	flags = ch->flags;
+	ch->flags |= (XPC_C_CLOSEREQUEST | XPC_C_DISCONNECTING);
 	/* some of these may not have been set */
 	ch->flags &= ~(XPC_C_OPENREQUEST | XPC_C_OPENREPLY |
 			XPC_C_ROPENREQUEST | XPC_C_ROPENREPLY |
 			XPC_C_CONNECTING | XPC_C_CONNECTED);
 
-	ch->flags |= (XPC_C_CLOSEREQUEST | XPC_C_DISCONNECTING);
 	xpc_IPI_send_closerequest(ch, irq_flags);
 
-	if (flags & XPC_C_CONNECTED) {
+	if (channel_was_connected) {
 		ch->flags |= XPC_C_WASCONNECTED;
 	}
 
-	if (atomic_read(&ch->kthreads_idle) > 0) {
-		/* wake all idle kthreads so they can exit */
-		wake_up_all(&ch->idle_wq);
-	}
-
 	spin_unlock_irqrestore(&ch->lock, *irq_flags);
 
-
+	/* wake all idle kthreads so they can exit */
-	/* wake those waiting to allocate an entry from the local msg queue */
+	if (atomic_read(&ch->kthreads_idle) > 0) {
-
+		wake_up_all(&ch->idle_wq);
-	if (atomic_read(&ch->n_on_msg_allocate_wq) > 0) {
-		wake_up(&ch->msg_allocate_wq);
 	}
 
-	/* wake those waiting for notify completion */
+	/* wake those waiting to allocate an entry from the local msg queue */
-
+	if (atomic_read(&ch->n_on_msg_allocate_wq) > 0) {
-	if (atomic_read(&ch->n_to_notify) > 0) {
+		wake_up(&ch->msg_allocate_wq);
-		xpc_notify_senders(ch, reason, ch->w_local_GP.put);
 	}
 
 	spin_lock_irqsave(&ch->lock, *irq_flags);
@@ -1585,23 +1645,24 @@ xpc_disconnect_channel(const int line, struct xpc_channel *ch,
 
 
 void
-xpc_disconnected_callout(struct xpc_channel *ch)
+xpc_disconnecting_callout(struct xpc_channel *ch)
 {
 	/*
-	 * Let the channel's registerer know that the channel is now
+	 * Let the channel's registerer know that the channel is being
 	 * disconnected. We don't want to do this if the registerer was never
-	 * informed of a connection being made, unless the disconnect was for
+	 * informed of a connection being made.
-	 * abnormal reasons.
 	 */
 
 	if (ch->func != NULL) {
-		dev_dbg(xpc_chan, "ch->func() called, reason=%d, partid=%d, "
+		dev_dbg(xpc_chan, "ch->func() called, reason=xpcDisconnecting,"
-			"channel=%d\n", ch->reason, ch->partid, ch->number);
+			" partid=%d, channel=%d\n", ch->partid, ch->number);
 
-		ch->func(ch->reason, ch->partid, ch->number, NULL, ch->key);
+		ch->func(xpcDisconnecting, ch->partid, ch->number, NULL,
+								ch->key);
 
-		dev_dbg(xpc_chan, "ch->func() returned, reason=%d, partid=%d, "
+		dev_dbg(xpc_chan, "ch->func() returned, reason="
-			"channel=%d\n", ch->reason, ch->partid, ch->number);
+			"xpcDisconnecting, partid=%d, channel=%d\n",
+			ch->partid, ch->number);
 	}
 }
 
@@ -1848,7 +1909,7 @@ xpc_send_msg(struct xpc_channel *ch, struct xpc_msg *msg, u8 notify_type,
 			xpc_notify_func func, void *key)
 {
 	enum xpc_retval ret = xpcSuccess;
-	struct xpc_notify *notify = NULL;   // >>> to keep the compiler happy!!
+	struct xpc_notify *notify = notify;
 	s64 put, msg_number = msg->number;
 
 

arch/ia64/sn/kernel/xpc_main.c

@@ -54,6 +54,7 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
+#include <linux/reboot.h>
 #include <asm/sn/intr.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/uaccess.h>
@@ -82,11 +83,17 @@ struct device *xpc_chan = &xpc_chan_dbg_subname;
 
 /* systune related variables for /proc/sys directories */
 
-static int xpc_hb_min = 1;
+static int xpc_hb_interval = XPC_HB_DEFAULT_INTERVAL;
-static int xpc_hb_max = 10;
+static int xpc_hb_min_interval = 1;
+static int xpc_hb_max_interval = 10;
 
-static int xpc_hb_check_min = 10;
+static int xpc_hb_check_interval = XPC_HB_CHECK_DEFAULT_INTERVAL;
-static int xpc_hb_check_max = 120;
+static int xpc_hb_check_min_interval = 10;
+static int xpc_hb_check_max_interval = 120;
+
+int xpc_disengage_request_timelimit = XPC_DISENGAGE_REQUEST_DEFAULT_TIMELIMIT;
+static int xpc_disengage_request_min_timelimit = 0;
+static int xpc_disengage_request_max_timelimit = 120;
 
 static ctl_table xpc_sys_xpc_hb_dir[] = {
 	{
@@ -99,7 +106,8 @@ static ctl_table xpc_sys_xpc_hb_dir[] = {
 		&proc_dointvec_minmax,
 		&sysctl_intvec,
 		NULL,
-		&xpc_hb_min, &xpc_hb_max
+		&xpc_hb_min_interval,
+		&xpc_hb_max_interval
 	},
 	{
 		2,
@@ -111,7 +119,8 @@ static ctl_table xpc_sys_xpc_hb_dir[] = {
 		&proc_dointvec_minmax,
 		&sysctl_intvec,
 		NULL,
-		&xpc_hb_check_min, &xpc_hb_check_max
+		&xpc_hb_check_min_interval,
+		&xpc_hb_check_max_interval
 	},
 	{0}
 };
@@ -124,6 +133,19 @@ static ctl_table xpc_sys_xpc_dir[] = {
 		0555,
 		xpc_sys_xpc_hb_dir
 	},
+	{
+		2,
+		"disengage_request_timelimit",
+		&xpc_disengage_request_timelimit,
+		sizeof(int),
+		0644,
+		NULL,
+		&proc_dointvec_minmax,
+		&sysctl_intvec,
+		NULL,
+		&xpc_disengage_request_min_timelimit,
+		&xpc_disengage_request_max_timelimit
+	},
 	{0}
 };
 static ctl_table xpc_sys_dir[] = {
@@ -148,10 +170,10 @@ static DECLARE_WAIT_QUEUE_HEAD(xpc_act_IRQ_wq);
 
 static unsigned long xpc_hb_check_timeout;
 
-/* xpc_hb_checker thread exited notification */
+/* notification that the xpc_hb_checker thread has exited */
 static DECLARE_MUTEX_LOCKED(xpc_hb_checker_exited);
 
-/* xpc_discovery thread exited notification */
+/* notification that the xpc_discovery thread has exited */
 static DECLARE_MUTEX_LOCKED(xpc_discovery_exited);
 
 
@@ -161,6 +183,30 @@ static struct timer_list xpc_hb_timer;
 static void xpc_kthread_waitmsgs(struct xpc_partition *, struct xpc_channel *);
 
 
+static int xpc_system_reboot(struct notifier_block *, unsigned long, void *);
+static struct notifier_block xpc_reboot_notifier = {
+	.notifier_call = xpc_system_reboot,
+};
+
+
+/*
+ * Timer function to enforce the timelimit on the partition disengage request.
+ */
+static void
+xpc_timeout_partition_disengage_request(unsigned long data)
+{
+	struct xpc_partition *part = (struct xpc_partition *) data;
+
+
+	DBUG_ON(jiffies < part->disengage_request_timeout);
+
+	(void) xpc_partition_disengaged(part);
+
+	DBUG_ON(part->disengage_request_timeout != 0);
+	DBUG_ON(xpc_partition_engaged(1UL << XPC_PARTID(part)) != 0);
+}
+
+
 /*
  * Notify the heartbeat check thread that an IRQ has been received.
  */
@@ -214,12 +260,6 @@ xpc_hb_checker(void *ignore)
 
 	while (!(volatile int) xpc_exiting) {
 
-		/* wait for IRQ or timeout */
-		(void) wait_event_interruptible(xpc_act_IRQ_wq,
-			    (last_IRQ_count < atomic_read(&xpc_act_IRQ_rcvd) ||
-					jiffies >= xpc_hb_check_timeout ||
-						(volatile int) xpc_exiting));
-
 		dev_dbg(xpc_part, "woke up with %d ticks rem; %d IRQs have "
 			"been received\n",
 			(int) (xpc_hb_check_timeout - jiffies),
@@ -240,6 +280,7 @@ xpc_hb_checker(void *ignore)
 		}
 
 
+		/* check for outstanding IRQs */
 		new_IRQ_count = atomic_read(&xpc_act_IRQ_rcvd);
 		if (last_IRQ_count < new_IRQ_count || force_IRQ != 0) {
 			force_IRQ = 0;
@@ -257,12 +298,18 @@ xpc_hb_checker(void *ignore)
 			xpc_hb_check_timeout = jiffies +
 					   (xpc_hb_check_interval * HZ);
 		}
+
+		/* wait for IRQ or timeout */
+		(void) wait_event_interruptible(xpc_act_IRQ_wq,
+			    (last_IRQ_count < atomic_read(&xpc_act_IRQ_rcvd) ||
+					jiffies >= xpc_hb_check_timeout ||
+						(volatile int) xpc_exiting));
 	}
 
 	dev_dbg(xpc_part, "heartbeat checker is exiting\n");
 
 
-	/* mark this thread as inactive */
+	/* mark this thread as having exited */
 	up(&xpc_hb_checker_exited);
 	return 0;
 }
@@ -282,7 +329,7 @@ xpc_initiate_discovery(void *ignore)
 
 	dev_dbg(xpc_part, "discovery thread is exiting\n");
 
-	/* mark this thread as inactive */
+	/* mark this thread as having exited */
 	up(&xpc_discovery_exited);
 	return 0;
 }
@@ -309,7 +356,7 @@ xpc_make_first_contact(struct xpc_partition *part)
 			"partition %d\n", XPC_PARTID(part));
 
 		/* wait a 1/4 of a second or so */
-		msleep_interruptible(250);
+		(void) msleep_interruptible(250);
 
 		if (part->act_state == XPC_P_DEACTIVATING) {
 			return part->reason;
@@ -336,7 +383,8 @@ static void
 xpc_channel_mgr(struct xpc_partition *part)
 {
 	while (part->act_state != XPC_P_DEACTIVATING ||
-				atomic_read(&part->nchannels_active) > 0) {
+			atomic_read(&part->nchannels_active) > 0 ||
+					!xpc_partition_disengaged(part)) {
 
 		xpc_process_channel_activity(part);
 
@@ -360,7 +408,8 @@ xpc_channel_mgr(struct xpc_partition *part)
 				(volatile u64) part->local_IPI_amo != 0 ||
 				((volatile u8) part->act_state ==
 							XPC_P_DEACTIVATING &&
-				atomic_read(&part->nchannels_active) == 0)));
+				atomic_read(&part->nchannels_active) == 0 &&
+				xpc_partition_disengaged(part))));
 		atomic_set(&part->channel_mgr_requests, 1);
 
 		// >>> Does it need to wakeup periodically as well? In case we
@@ -482,7 +531,7 @@ xpc_activating(void *__partid)
 		return 0;
 	}
 
-	XPC_ALLOW_HB(partid, xpc_vars);
+	xpc_allow_hb(partid, xpc_vars);
 	xpc_IPI_send_activated(part);
 
 
@@ -492,6 +541,7 @@ xpc_activating(void *__partid)
 	 */
 	(void) xpc_partition_up(part);
 
+	xpc_disallow_hb(partid, xpc_vars);
 	xpc_mark_partition_inactive(part);
 
 	if (part->reason == xpcReactivating) {
@@ -670,6 +720,7 @@ xpc_daemonize_kthread(void *args)
 	struct xpc_partition *part = &xpc_partitions[partid];
 	struct xpc_channel *ch;
 	int n_needed;
+	unsigned long irq_flags;
 
 
 	daemonize("xpc%02dc%d", partid, ch_number);
@@ -680,11 +731,14 @@ xpc_daemonize_kthread(void *args)
 	ch = &part->channels[ch_number];
 
 	if (!(ch->flags & XPC_C_DISCONNECTING)) {
-		DBUG_ON(!(ch->flags & XPC_C_CONNECTED));
 
 		/* let registerer know that connection has been established */
 
-		if (atomic_read(&ch->kthreads_assigned) == 1) {
+		spin_lock_irqsave(&ch->lock, irq_flags);
+		if (!(ch->flags & XPC_C_CONNECTCALLOUT)) {
+			ch->flags |= XPC_C_CONNECTCALLOUT;
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
+
 			xpc_connected_callout(ch);
 
 			/*
@@ -699,16 +753,28 @@ xpc_daemonize_kthread(void *args)
 					!(ch->flags & XPC_C_DISCONNECTING)) {
 				xpc_activate_kthreads(ch, n_needed);
 			}
+		} else {
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
 		}
 
 		xpc_kthread_waitmsgs(part, ch);
 	}
 
-	if (atomic_dec_return(&ch->kthreads_assigned) == 0 &&
+	if (atomic_dec_return(&ch->kthreads_assigned) == 0) {
-			((ch->flags & XPC_C_CONNECTCALLOUT) ||
+		spin_lock_irqsave(&ch->lock, irq_flags);
-				(ch->reason != xpcUnregistering &&
+		if ((ch->flags & XPC_C_CONNECTCALLOUT) &&
-					ch->reason != xpcOtherUnregistering))) {
+				!(ch->flags & XPC_C_DISCONNECTCALLOUT)) {
-		xpc_disconnected_callout(ch);
+			ch->flags |= XPC_C_DISCONNECTCALLOUT;
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
+
+			xpc_disconnecting_callout(ch);
+		} else {
+			spin_unlock_irqrestore(&ch->lock, irq_flags);
+		}
+		if (atomic_dec_return(&part->nchannels_engaged) == 0) {
+			xpc_mark_partition_disengaged(part);
+			xpc_IPI_send_disengage(part);
+		}
 	}
 
 
@@ -740,12 +806,33 @@ xpc_create_kthreads(struct xpc_channel *ch, int needed)
 	unsigned long irq_flags;
 	pid_t pid;
 	u64 args = XPC_PACK_ARGS(ch->partid, ch->number);
+	struct xpc_partition *part = &xpc_partitions[ch->partid];
 
 
 	while (needed-- > 0) {
+
+		/*
+		 * The following is done on behalf of the newly created
+		 * kthread. That kthread is responsible for doing the
+		 * counterpart to the following before it exits.
+		 */
+		(void) xpc_part_ref(part);
+		xpc_msgqueue_ref(ch);
+		if (atomic_inc_return(&ch->kthreads_assigned) == 1 &&
+		    atomic_inc_return(&part->nchannels_engaged) == 1) {
+			xpc_mark_partition_engaged(part);
+		}
+
 		pid = kernel_thread(xpc_daemonize_kthread, (void *) args, 0);
 		if (pid < 0) {
 			/* the fork failed */
+			if (atomic_dec_return(&ch->kthreads_assigned) == 0 &&
+			    atomic_dec_return(&part->nchannels_engaged) == 0) {
+				xpc_mark_partition_disengaged(part);
+				xpc_IPI_send_disengage(part);
+			}
+			xpc_msgqueue_deref(ch);
+			xpc_part_deref(part);
 
 			if (atomic_read(&ch->kthreads_assigned) <
 						ch->kthreads_idle_limit) {
@@ -765,14 +852,6 @@ xpc_create_kthreads(struct xpc_channel *ch, int needed)
 			break;
 		}
 
-		/*
-		 * The following is done on behalf of the newly created
-		 * kthread. That kthread is responsible for doing the
-		 * counterpart to the following before it exits.
-		 */
-		(void) xpc_part_ref(&xpc_partitions[ch->partid]);
-		xpc_msgqueue_ref(ch);
-		atomic_inc(&ch->kthreads_assigned);
 		ch->kthreads_created++;	// >>> temporary debug only!!!
 	}
 }
@@ -781,87 +860,142 @@ xpc_create_kthreads(struct xpc_channel *ch, int needed)
 void
 xpc_disconnect_wait(int ch_number)
 {
+	unsigned long irq_flags;
 	partid_t partid;
 	struct xpc_partition *part;
 	struct xpc_channel *ch;
+	int wakeup_channel_mgr;
 
 
 	/* now wait for all callouts to the caller's function to cease */
 	for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
 		part = &xpc_partitions[partid];
 
-		if (xpc_part_ref(part)) {
+		if (!xpc_part_ref(part)) {
-			ch = &part->channels[ch_number];
+			continue;
-
-// >>> how do we keep from falling into the window between our check and going
-// >>> down and coming back up where sema is re-inited?
-			if (ch->flags & XPC_C_SETUP) {
-				(void) down(&ch->teardown_sema);
-			}
-
-			xpc_part_deref(part);
 		}
+
+		ch = &part->channels[ch_number];
+
+		if (!(ch->flags & XPC_C_WDISCONNECT)) {
+			xpc_part_deref(part);
+			continue;
+		}
+
+		(void) down(&ch->wdisconnect_sema);
+
+		spin_lock_irqsave(&ch->lock, irq_flags);
+		DBUG_ON(!(ch->flags & XPC_C_DISCONNECTED));
+		wakeup_channel_mgr = 0;
+
+		if (ch->delayed_IPI_flags) {
+			if (part->act_state != XPC_P_DEACTIVATING) {
+				spin_lock(&part->IPI_lock);
+				XPC_SET_IPI_FLAGS(part->local_IPI_amo,
+					ch->number, ch->delayed_IPI_flags);
+				spin_unlock(&part->IPI_lock);
+				wakeup_channel_mgr = 1;
+			}
+			ch->delayed_IPI_flags = 0;
+		}
+
+		ch->flags &= ~XPC_C_WDISCONNECT;
+		spin_unlock_irqrestore(&ch->lock, irq_flags);
+
+		if (wakeup_channel_mgr) {
+			xpc_wakeup_channel_mgr(part);
+		}
+
+		xpc_part_deref(part);
 	}
 }
 
 
 static void
-xpc_do_exit(void)
+xpc_do_exit(enum xpc_retval reason)
 {
 	partid_t partid;
 	int active_part_count;
 	struct xpc_partition *part;
+	unsigned long printmsg_time;
 
 
-	/* now it's time to eliminate our heartbeat */
+	/* a 'rmmod XPC' and a 'reboot' cannot both end up here together */
-	del_timer_sync(&xpc_hb_timer);
+	DBUG_ON(xpc_exiting == 1);
-	xpc_vars->heartbeating_to_mask = 0;
-
-	/* indicate to others that our reserved page is uninitialized */
-	xpc_rsvd_page->vars_pa = 0;
 
 	/*
-	 * Ignore all incoming interrupts. Without interupts the heartbeat
+	 * Let the heartbeat checker thread and the discovery thread
-	 * checker won't activate any new partitions that may come up.
+	 * (if one is running) know that they should exit. Also wake up
-	 */
+	 * the heartbeat checker thread in case it's sleeping.
-	free_irq(SGI_XPC_ACTIVATE, NULL);
-
-	/*
-	 * Cause the heartbeat checker and the discovery threads to exit.
-	 * We don't want them attempting to activate new partitions as we
-	 * try to deactivate the existing ones.
 	 */
 	xpc_exiting = 1;
 	wake_up_interruptible(&xpc_act_IRQ_wq);
 
-	/* wait for the heartbeat checker thread to mark itself inactive */
+	/* ignore all incoming interrupts */
-	down(&xpc_hb_checker_exited);
+	free_irq(SGI_XPC_ACTIVATE, NULL);
 
-	/* wait for the discovery thread to mark itself inactive */
+	/* wait for the discovery thread to exit */
 	down(&xpc_discovery_exited);
 
+	/* wait for the heartbeat checker thread to exit */
+	down(&xpc_hb_checker_exited);
 
-	msleep_interruptible(300);
+
+	/* sleep for a 1/3 of a second or so */
+	(void) msleep_interruptible(300);
 
 
 	/* wait for all partitions to become inactive */
 
+	printmsg_time = jiffies;
+
 	do {
 		active_part_count = 0;
 
 		for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
 			part = &xpc_partitions[partid];
-			if (part->act_state != XPC_P_INACTIVE) {
-				active_part_count++;
 
-				XPC_DEACTIVATE_PARTITION(part, xpcUnloading);
+			if (xpc_partition_disengaged(part) &&
+					part->act_state == XPC_P_INACTIVE) {
+				continue;
 			}
+
+			active_part_count++;
+
+			XPC_DEACTIVATE_PARTITION(part, reason);
 		}
 
-		if (active_part_count)
+		if (active_part_count == 0) {
-			msleep_interruptible(300);
+			break;
-	} while (active_part_count > 0);
+		}
 
+		if (jiffies >= printmsg_time) {
+			dev_info(xpc_part, "waiting for partitions to "
+				"deactivate/disengage, active count=%d, remote "
+				"engaged=0x%lx\n", active_part_count,
+				xpc_partition_engaged(1UL << partid));
+
+			printmsg_time = jiffies +
+					(XPC_DISENGAGE_PRINTMSG_INTERVAL * HZ);
+		}
+
+		/* sleep for a 1/3 of a second or so */
+		(void) msleep_interruptible(300);
+
+	} while (1);
+
+	DBUG_ON(xpc_partition_engaged(-1UL));
+
+
+	/* indicate to others that our reserved page is uninitialized */
+	xpc_rsvd_page->vars_pa = 0;
+
+	/* now it's time to eliminate our heartbeat */
+	del_timer_sync(&xpc_hb_timer);
+	DBUG_ON(xpc_vars->heartbeating_to_mask != 0);
+
+	/* take ourselves off of the reboot_notifier_list */
+	(void) unregister_reboot_notifier(&xpc_reboot_notifier);
 
 	/* close down protections for IPI operations */
 	xpc_restrict_IPI_ops();
@@ -876,6 +1010,34 @@ xpc_do_exit(void)
 }
 
 
+/*
+ * This function is called when the system is being rebooted.
+ */
+static int
+xpc_system_reboot(struct notifier_block *nb, unsigned long event, void *unused)
+{
+	enum xpc_retval reason;
+
+
+	switch (event) {
+	case SYS_RESTART:
+		reason = xpcSystemReboot;
+		break;
+	case SYS_HALT:
+		reason = xpcSystemHalt;
+		break;
+	case SYS_POWER_OFF:
+		reason = xpcSystemPoweroff;
+		break;
+	default:
+		reason = xpcSystemGoingDown;
+	}
+
+	xpc_do_exit(reason);
+	return NOTIFY_DONE;
+}
+
+
 int __init
 xpc_init(void)
 {
@@ -891,11 +1053,11 @@ xpc_init(void)
 
 	/*
 	 * xpc_remote_copy_buffer is used as a temporary buffer for bte_copy'ng
-	 * both a partition's reserved page and its XPC variables. Its size was
+	 * various portions of a partition's reserved page. Its size is based
-	 * based on the size of a reserved page. So we need to ensure that the
+	 * on the size of the reserved page header and part_nasids mask. So we
-	 * XPC variables will fit as well.
+	 * need to ensure that the other items will fit as well.
 	 */
-	if (XPC_VARS_ALIGNED_SIZE > XPC_RSVD_PAGE_ALIGNED_SIZE) {
+	if (XPC_RP_VARS_SIZE > XPC_RP_HEADER_SIZE + XP_NASID_MASK_BYTES) {
 		dev_err(xpc_part, "xpc_remote_copy_buffer is not big enough\n");
 		return -EPERM;
 	}
@@ -924,6 +1086,12 @@ xpc_init(void)
 		spin_lock_init(&part->act_lock);
 		part->act_state = XPC_P_INACTIVE;
 		XPC_SET_REASON(part, 0, 0);
+
+		init_timer(&part->disengage_request_timer);
+		part->disengage_request_timer.function =
+				xpc_timeout_partition_disengage_request;
+		part->disengage_request_timer.data = (unsigned long) part;
+
 		part->setup_state = XPC_P_UNSET;
 		init_waitqueue_head(&part->teardown_wq);
 		atomic_set(&part->references, 0);
@@ -980,6 +1148,13 @@ xpc_init(void)
 	}
 
 
+	/* add ourselves to the reboot_notifier_list */
+	ret = register_reboot_notifier(&xpc_reboot_notifier);
+	if (ret != 0) {
+		dev_warn(xpc_part, "can't register reboot notifier\n");
+	}
+
+
 	/*
 	 * Set the beating to other partitions into motion.  This is
 	 * the last requirement for other partitions' discovery to
@@ -1001,6 +1176,9 @@ xpc_init(void)
 		/* indicate to others that our reserved page is uninitialized */
 		xpc_rsvd_page->vars_pa = 0;
 
+		/* take ourselves off of the reboot_notifier_list */
+		(void) unregister_reboot_notifier(&xpc_reboot_notifier);
+
 		del_timer_sync(&xpc_hb_timer);
 		free_irq(SGI_XPC_ACTIVATE, NULL);
 		xpc_restrict_IPI_ops();
@@ -1024,7 +1202,7 @@ xpc_init(void)
 		/* mark this new thread as a non-starter */
 		up(&xpc_discovery_exited);
 
-		xpc_do_exit();
+		xpc_do_exit(xpcUnloading);
 		return -EBUSY;
 	}
 
@@ -1043,7 +1221,7 @@ module_init(xpc_init);
 void __exit
 xpc_exit(void)
 {
-	xpc_do_exit();
+	xpc_do_exit(xpcUnloading);
 }
 module_exit(xpc_exit);
 
@@ -1060,3 +1238,7 @@ module_param(xpc_hb_check_interval, int, 0);
 MODULE_PARM_DESC(xpc_hb_check_interval, "Number of seconds between "
 		"heartbeat checks.");
 
+module_param(xpc_disengage_request_timelimit, int, 0);
+MODULE_PARM_DESC(xpc_disengage_request_timelimit, "Number of seconds to wait "
+		"for disengage request to complete.");
+

arch/ia64/sn/kernel/xpc_partition.c

@@ -44,16 +44,19 @@ static u64 xpc_sh2_IPI_access3;
 
 
 /* original protection values for each node */
-u64 xpc_prot_vec[MAX_COMPACT_NODES];
+u64 xpc_prot_vec[MAX_NUMNODES];
 
 
-/* this partition's reserved page */
+/* this partition's reserved page pointers */
 struct xpc_rsvd_page *xpc_rsvd_page;
-
+static u64 *xpc_part_nasids;
-/* this partition's XPC variables (within the reserved page) */
+static u64 *xpc_mach_nasids;
 struct xpc_vars *xpc_vars;
 struct xpc_vars_part *xpc_vars_part;
 
+static int xp_nasid_mask_bytes;	/* actual size in bytes of nasid mask */
+static int xp_nasid_mask_words;	/* actual size in words of nasid mask */
+
 
 /*
  * For performance reasons, each entry of xpc_partitions[] is cacheline
@@ -65,20 +68,16 @@ struct xpc_partition xpc_partitions[XP_MAX_PARTITIONS + 1];
 
 
 /*
- * Generic buffer used to store a local copy of the remote partitions
+ * Generic buffer used to store a local copy of portions of a remote
- * reserved page or XPC variables.
+ * partition's reserved page (either its header and part_nasids mask,
+ * or its vars).
  *
  * xpc_discovery runs only once and is a seperate thread that is
  * very likely going to be processing in parallel with receiving
  * interrupts.
  */
-char ____cacheline_aligned
+char ____cacheline_aligned xpc_remote_copy_buffer[XPC_RP_HEADER_SIZE +
-		xpc_remote_copy_buffer[XPC_RSVD_PAGE_ALIGNED_SIZE];
+							XP_NASID_MASK_BYTES];
-
-
-/* systune related variables */
-int xpc_hb_interval = XPC_HB_DEFAULT_INTERVAL;
-int xpc_hb_check_interval = XPC_HB_CHECK_DEFAULT_TIMEOUT;
 
 
 /*
@@ -86,13 +85,16 @@ int xpc_hb_check_interval = XPC_HB_CHECK_DEFAULT_TIMEOUT;
  * for that nasid. This function returns 0 on any error.
  */
 static u64
-xpc_get_rsvd_page_pa(int nasid, u64 buf, u64 buf_size)
+xpc_get_rsvd_page_pa(int nasid)
 {
 	bte_result_t bte_res;
 	s64 status;
 	u64 cookie = 0;
 	u64 rp_pa = nasid;	/* seed with nasid */
 	u64 len = 0;
+	u64 buf = buf;
+	u64 buf_len = 0;
+	void *buf_base = NULL;
 
 
 	while (1) {
@@ -108,13 +110,22 @@ xpc_get_rsvd_page_pa(int nasid, u64 buf, u64 buf_size)
 			break;
 		}
 
-		if (len > buf_size) {
+		if (L1_CACHE_ALIGN(len) > buf_len) {
-			dev_err(xpc_part, "len (=0x%016lx) > buf_size\n", len);
+			if (buf_base != NULL) {
-			status = SALRET_ERROR;
+				kfree(buf_base);
-			break;
+			}
+			buf_len = L1_CACHE_ALIGN(len);
+			buf = (u64) xpc_kmalloc_cacheline_aligned(buf_len,
+							GFP_KERNEL, &buf_base);
+			if (buf_base == NULL) {
+				dev_err(xpc_part, "unable to kmalloc "
+					"len=0x%016lx\n", buf_len);
+				status = SALRET_ERROR;
+				break;
+			}
 		}
 
-		bte_res = xp_bte_copy(rp_pa, ia64_tpa(buf), buf_size,
+		bte_res = xp_bte_copy(rp_pa, ia64_tpa(buf), buf_len,
 					(BTE_NOTIFY | BTE_WACQUIRE), NULL);
 		if (bte_res != BTE_SUCCESS) {
 			dev_dbg(xpc_part, "xp_bte_copy failed %i\n", bte_res);
@@ -123,6 +134,10 @@ xpc_get_rsvd_page_pa(int nasid, u64 buf, u64 buf_size)
 		}
 	}
 
+	if (buf_base != NULL) {
+		kfree(buf_base);
+	}
+
 	if (status != SALRET_OK) {
 		rp_pa = 0;
 	}
@@ -141,15 +156,15 @@ xpc_rsvd_page_init(void)
 {
 	struct xpc_rsvd_page *rp;
 	AMO_t *amos_page;
-	u64 rp_pa, next_cl, nasid_array = 0;
+	u64 rp_pa, nasid_array = 0;
 	int i, ret;
 
 
 	/* get the local reserved page's address */
 
-	rp_pa = xpc_get_rsvd_page_pa(cnodeid_to_nasid(0),
+	preempt_disable();
-					(u64) xpc_remote_copy_buffer,
+	rp_pa = xpc_get_rsvd_page_pa(cpuid_to_nasid(smp_processor_id()));
-						XPC_RSVD_PAGE_ALIGNED_SIZE);
+	preempt_enable();
 	if (rp_pa == 0) {
 		dev_err(xpc_part, "SAL failed to locate the reserved page\n");
 		return NULL;
@@ -164,12 +179,19 @@ xpc_rsvd_page_init(void)
 
 	rp->version = XPC_RP_VERSION;
 
-	/*
+	/* establish the actual sizes of the nasid masks */
-	 * Place the XPC variables on the cache line following the
+	if (rp->SAL_version == 1) {
-	 * reserved page structure.
+		/* SAL_version 1 didn't set the nasids_size field */
-	 */
+		rp->nasids_size = 128;
-	next_cl = (u64) rp + XPC_RSVD_PAGE_ALIGNED_SIZE;
+	}
-	xpc_vars = (struct xpc_vars *) next_cl;
+	xp_nasid_mask_bytes = rp->nasids_size;
+	xp_nasid_mask_words = xp_nasid_mask_bytes / 8;
+
+	/* setup the pointers to the various items in the reserved page */
+	xpc_part_nasids = XPC_RP_PART_NASIDS(rp);
+	xpc_mach_nasids = XPC_RP_MACH_NASIDS(rp);
+	xpc_vars = XPC_RP_VARS(rp);
+	xpc_vars_part = XPC_RP_VARS_PART(rp);
 
 	/*
 	 * Before clearing xpc_vars, see if a page of AMOs had been previously
@@ -221,33 +243,32 @@ xpc_rsvd_page_init(void)
 		amos_page = (AMO_t *) TO_AMO((u64) amos_page);
 	}
 
+	/* clear xpc_vars */
 	memset(xpc_vars, 0, sizeof(struct xpc_vars));
 
-	/*
-	 * Place the XPC per partition specific variables on the cache line
-	 * following the XPC variables structure.
-	 */
-	next_cl += XPC_VARS_ALIGNED_SIZE;
-	memset((u64 *) next_cl, 0, sizeof(struct xpc_vars_part) *
-							XP_MAX_PARTITIONS);
-	xpc_vars_part = (struct xpc_vars_part *) next_cl;
-	xpc_vars->vars_part_pa = __pa(next_cl);
-
 	xpc_vars->version = XPC_V_VERSION;
 	xpc_vars->act_nasid = cpuid_to_nasid(0);
 	xpc_vars->act_phys_cpuid = cpu_physical_id(0);
+	xpc_vars->vars_part_pa = __pa(xpc_vars_part);
+	xpc_vars->amos_page_pa = ia64_tpa((u64) amos_page);
 	xpc_vars->amos_page = amos_page;  /* save for next load of XPC */
 
 
-	/*
+	/* clear xpc_vars_part */
-	 * Initialize the activation related AMO variables.
+	memset((u64 *) xpc_vars_part, 0, sizeof(struct xpc_vars_part) *
-	 */
+							XP_MAX_PARTITIONS);
-	xpc_vars->act_amos = xpc_IPI_init(XP_MAX_PARTITIONS);
+
-	for (i = 1; i < XP_NASID_MASK_WORDS; i++) {
+	/* initialize the activate IRQ related AMO variables */
-		xpc_IPI_init(i + XP_MAX_PARTITIONS);
+	for (i = 0; i < xp_nasid_mask_words; i++) {
+		(void) xpc_IPI_init(XPC_ACTIVATE_IRQ_AMOS + i);
 	}
-	/* export AMO page's physical address to other partitions */
+
-	xpc_vars->amos_page_pa = ia64_tpa((u64) xpc_vars->amos_page);
+	/* initialize the engaged remote partitions related AMO variables */
+	(void) xpc_IPI_init(XPC_ENGAGED_PARTITIONS_AMO);
+	(void) xpc_IPI_init(XPC_DISENGAGE_REQUEST_AMO);
+
+	/* timestamp of when reserved page was setup by XPC */
+	rp->stamp = CURRENT_TIME;
 
 	/*
 	 * This signifies to the remote partition that our reserved
@@ -387,6 +408,11 @@ xpc_check_remote_hb(void)
 	remote_vars = (struct xpc_vars *) xpc_remote_copy_buffer;
 
 	for (partid = 1; partid < XP_MAX_PARTITIONS; partid++) {
+
+		if (xpc_exiting) {
+			break;
+		}
+
 		if (partid == sn_partition_id) {
 			continue;
 		}
@@ -401,7 +427,7 @@ xpc_check_remote_hb(void)
 		/* pull the remote_hb cache line */
 		bres = xp_bte_copy(part->remote_vars_pa,
 					ia64_tpa((u64) remote_vars),
-					XPC_VARS_ALIGNED_SIZE,
+					XPC_RP_VARS_SIZE,
 					(BTE_NOTIFY | BTE_WACQUIRE), NULL);
 		if (bres != BTE_SUCCESS) {
 			XPC_DEACTIVATE_PARTITION(part,
@@ -417,7 +443,7 @@ xpc_check_remote_hb(void)
 
 		if (((remote_vars->heartbeat == part->last_heartbeat) &&
 			(remote_vars->kdb_status == 0)) ||
-			     !XPC_HB_ALLOWED(sn_partition_id, remote_vars)) {
+			     !xpc_hb_allowed(sn_partition_id, remote_vars)) {
 
 			XPC_DEACTIVATE_PARTITION(part, xpcNoHeartbeat);
 			continue;
@@ -429,31 +455,31 @@ xpc_check_remote_hb(void)
 
 
 /*
- * Get a copy of the remote partition's rsvd page.
+ * Get a copy of a portion of the remote partition's rsvd page.
  *
  * remote_rp points to a buffer that is cacheline aligned for BTE copies and
- * assumed to be of size XPC_RSVD_PAGE_ALIGNED_SIZE.
+ * is large enough to contain a copy of their reserved page header and
+ * part_nasids mask.
  */
 static enum xpc_retval
 xpc_get_remote_rp(int nasid, u64 *discovered_nasids,
-		struct xpc_rsvd_page *remote_rp, u64 *remote_rsvd_page_pa)
+		struct xpc_rsvd_page *remote_rp, u64 *remote_rp_pa)
 {
 	int bres, i;
 
 
 	/* get the reserved page's physical address */
 
-	*remote_rsvd_page_pa = xpc_get_rsvd_page_pa(nasid, (u64) remote_rp,
+	*remote_rp_pa = xpc_get_rsvd_page_pa(nasid);
-						XPC_RSVD_PAGE_ALIGNED_SIZE);
+	if (*remote_rp_pa == 0) {
-	if (*remote_rsvd_page_pa == 0) {
 		return xpcNoRsvdPageAddr;
 	}
 
 
-	/* pull over the reserved page structure */
+	/* pull over the reserved page header and part_nasids mask */
 
-	bres = xp_bte_copy(*remote_rsvd_page_pa, ia64_tpa((u64) remote_rp),
+	bres = xp_bte_copy(*remote_rp_pa, ia64_tpa((u64) remote_rp),
-				XPC_RSVD_PAGE_ALIGNED_SIZE,
+				XPC_RP_HEADER_SIZE + xp_nasid_mask_bytes,
 				(BTE_NOTIFY | BTE_WACQUIRE), NULL);
 	if (bres != BTE_SUCCESS) {
 		return xpc_map_bte_errors(bres);
@@ -461,8 +487,11 @@ xpc_get_remote_rp(int nasid, u64 *discovered_nasids,
 
 
 	if (discovered_nasids != NULL) {
-		for (i = 0; i < XP_NASID_MASK_WORDS; i++) {
+		u64 *remote_part_nasids = XPC_RP_PART_NASIDS(remote_rp);
-			discovered_nasids[i] |= remote_rp->part_nasids[i];
+
+
+		for (i = 0; i < xp_nasid_mask_words; i++) {
+			discovered_nasids[i] |= remote_part_nasids[i];
 		}
 	}
 
@@ -489,10 +518,10 @@ xpc_get_remote_rp(int nasid, u64 *discovered_nasids,
 
 
 /*
- * Get a copy of the remote partition's XPC variables.
+ * Get a copy of the remote partition's XPC variables from the reserved page.
  *
  * remote_vars points to a buffer that is cacheline aligned for BTE copies and
- * assumed to be of size XPC_VARS_ALIGNED_SIZE.
+ * assumed to be of size XPC_RP_VARS_SIZE.
  */
 static enum xpc_retval
 xpc_get_remote_vars(u64 remote_vars_pa, struct xpc_vars *remote_vars)
@@ -508,7 +537,7 @@ xpc_get_remote_vars(u64 remote_vars_pa, struct xpc_vars *remote_vars)
 	/* pull over the cross partition variables */
 
 	bres = xp_bte_copy(remote_vars_pa, ia64_tpa((u64) remote_vars),
-				XPC_VARS_ALIGNED_SIZE,
+				XPC_RP_VARS_SIZE,
 				(BTE_NOTIFY | BTE_WACQUIRE), NULL);
 	if (bres != BTE_SUCCESS) {
 		return xpc_map_bte_errors(bres);
@@ -524,7 +553,56 @@ xpc_get_remote_vars(u64 remote_vars_pa, struct xpc_vars *remote_vars)
 
 
 /*
- * Prior code has determine the nasid which generated an IPI.  Inspect
+ * Update the remote partition's info.
+ */
+static void
+xpc_update_partition_info(struct xpc_partition *part, u8 remote_rp_version,
+		struct timespec *remote_rp_stamp, u64 remote_rp_pa,
+		u64 remote_vars_pa, struct xpc_vars *remote_vars)
+{
+	part->remote_rp_version = remote_rp_version;
+	dev_dbg(xpc_part, "  remote_rp_version = 0x%016lx\n",
+		part->remote_rp_version);
+
+	part->remote_rp_stamp = *remote_rp_stamp;
+	dev_dbg(xpc_part, "  remote_rp_stamp (tv_sec = 0x%lx tv_nsec = 0x%lx\n",
+		part->remote_rp_stamp.tv_sec, part->remote_rp_stamp.tv_nsec);
+
+	part->remote_rp_pa = remote_rp_pa;
+	dev_dbg(xpc_part, "  remote_rp_pa = 0x%016lx\n", part->remote_rp_pa);
+
+	part->remote_vars_pa = remote_vars_pa;
+	dev_dbg(xpc_part, "  remote_vars_pa = 0x%016lx\n",
+		part->remote_vars_pa);
+
+	part->last_heartbeat = remote_vars->heartbeat;
+	dev_dbg(xpc_part, "  last_heartbeat = 0x%016lx\n",
+		part->last_heartbeat);
+
+	part->remote_vars_part_pa = remote_vars->vars_part_pa;
+	dev_dbg(xpc_part, "  remote_vars_part_pa = 0x%016lx\n",
+		part->remote_vars_part_pa);
+
+	part->remote_act_nasid = remote_vars->act_nasid;
+	dev_dbg(xpc_part, "  remote_act_nasid = 0x%x\n",
+		part->remote_act_nasid);
+
+	part->remote_act_phys_cpuid = remote_vars->act_phys_cpuid;
+	dev_dbg(xpc_part, "  remote_act_phys_cpuid = 0x%x\n",
+		part->remote_act_phys_cpuid);
+
+	part->remote_amos_page_pa = remote_vars->amos_page_pa;
+	dev_dbg(xpc_part, "  remote_amos_page_pa = 0x%lx\n",
+		part->remote_amos_page_pa);
+
+	part->remote_vars_version = remote_vars->version;
+	dev_dbg(xpc_part, "  remote_vars_version = 0x%x\n",
+		part->remote_vars_version);
+}
+
+
+/*
+ * Prior code has determined the nasid which generated an IPI.  Inspect
  * that nasid to determine if its partition needs to be activated or
  * deactivated.
  *
@@ -542,8 +620,12 @@ xpc_identify_act_IRQ_req(int nasid)
 {
 	struct xpc_rsvd_page *remote_rp;
 	struct xpc_vars *remote_vars;
-	u64 remote_rsvd_page_pa;
+	u64 remote_rp_pa;
 	u64 remote_vars_pa;
+	int remote_rp_version;
+	int reactivate = 0;
+	int stamp_diff;
+	struct timespec remote_rp_stamp = { 0, 0 };
 	partid_t partid;
 	struct xpc_partition *part;
 	enum xpc_retval ret;
@@ -553,7 +635,7 @@ xpc_identify_act_IRQ_req(int nasid)
 
 	remote_rp = (struct xpc_rsvd_page *) xpc_remote_copy_buffer;
 
-	ret = xpc_get_remote_rp(nasid, NULL, remote_rp, &remote_rsvd_page_pa);
+	ret = xpc_get_remote_rp(nasid, NULL, remote_rp, &remote_rp_pa);
 	if (ret != xpcSuccess) {
 		dev_warn(xpc_part, "unable to get reserved page from nasid %d, "
 			"which sent interrupt, reason=%d\n", nasid, ret);
@@ -561,6 +643,10 @@ xpc_identify_act_IRQ_req(int nasid)
 	}
 
 	remote_vars_pa = remote_rp->vars_pa;
+	remote_rp_version = remote_rp->version;
+	if (XPC_SUPPORTS_RP_STAMP(remote_rp_version)) {
+		remote_rp_stamp = remote_rp->stamp;
+	}
 	partid = remote_rp->partid;
 	part = &xpc_partitions[partid];
 
@@ -586,44 +672,117 @@ xpc_identify_act_IRQ_req(int nasid)
 		"%ld:0x%lx\n", (int) nasid, (int) partid, part->act_IRQ_rcvd,
 		remote_vars->heartbeat, remote_vars->heartbeating_to_mask);
 
+	if (xpc_partition_disengaged(part) &&
+					part->act_state == XPC_P_INACTIVE) {
 
-	if (part->act_state == XPC_P_INACTIVE) {
+		xpc_update_partition_info(part, remote_rp_version,
+					&remote_rp_stamp, remote_rp_pa,
+					remote_vars_pa, remote_vars);
 
-		part->remote_rp_pa = remote_rsvd_page_pa;
+		if (XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version)) {
-		dev_dbg(xpc_part, "  remote_rp_pa = 0x%016lx\n",
+			if (xpc_partition_disengage_requested(1UL << partid)) {
-			part->remote_rp_pa);
+				/*
-
+				 * Other side is waiting on us to disengage,
-		part->remote_vars_pa = remote_vars_pa;
+				 * even though we already have.
-		dev_dbg(xpc_part, "  remote_vars_pa = 0x%016lx\n",
+				 */
-			part->remote_vars_pa);
+				return;
-
+			}
-		part->last_heartbeat = remote_vars->heartbeat;
+		} else {
-		dev_dbg(xpc_part, "  last_heartbeat = 0x%016lx\n",
+			/* other side doesn't support disengage requests */
-			part->last_heartbeat);
+			xpc_clear_partition_disengage_request(1UL << partid);
-
+		}
-		part->remote_vars_part_pa = remote_vars->vars_part_pa;
-		dev_dbg(xpc_part, "  remote_vars_part_pa = 0x%016lx\n",
-			part->remote_vars_part_pa);
-
-		part->remote_act_nasid = remote_vars->act_nasid;
-		dev_dbg(xpc_part, "  remote_act_nasid = 0x%x\n",
-			part->remote_act_nasid);
-
-		part->remote_act_phys_cpuid = remote_vars->act_phys_cpuid;
-		dev_dbg(xpc_part, "  remote_act_phys_cpuid = 0x%x\n",
-			part->remote_act_phys_cpuid);
-
-		part->remote_amos_page_pa = remote_vars->amos_page_pa;
-		dev_dbg(xpc_part, "  remote_amos_page_pa = 0x%lx\n",
-			part->remote_amos_page_pa);
 
 		xpc_activate_partition(part);
+		return;
+	}
 
-	} else if (part->remote_amos_page_pa != remote_vars->amos_page_pa ||
+	DBUG_ON(part->remote_rp_version == 0);
-			!XPC_HB_ALLOWED(sn_partition_id, remote_vars)) {
+	DBUG_ON(part->remote_vars_version == 0);
 
+	if (!XPC_SUPPORTS_RP_STAMP(part->remote_rp_version)) {
+		DBUG_ON(XPC_SUPPORTS_DISENGAGE_REQUEST(part->
+							remote_vars_version));
+
+		if (!XPC_SUPPORTS_RP_STAMP(remote_rp_version)) {
+			DBUG_ON(XPC_SUPPORTS_DISENGAGE_REQUEST(remote_vars->
+								version));
+			/* see if the other side rebooted */
+			if (part->remote_amos_page_pa ==
+				remote_vars->amos_page_pa &&
+					xpc_hb_allowed(sn_partition_id,
+								remote_vars)) {
+				/* doesn't look that way, so ignore the IPI */
+				return;
+			}
+		}
+
+		/*
+		 * Other side rebooted and previous XPC didn't support the
+		 * disengage request, so we don't need to do anything special.
+		 */
+
+		xpc_update_partition_info(part, remote_rp_version,
+						&remote_rp_stamp, remote_rp_pa,
+						remote_vars_pa, remote_vars);
 		part->reactivate_nasid = nasid;
 		XPC_DEACTIVATE_PARTITION(part, xpcReactivating);
+		return;
+	}
+
+	DBUG_ON(!XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version));
+
+	if (!XPC_SUPPORTS_RP_STAMP(remote_rp_version)) {
+		DBUG_ON(!XPC_SUPPORTS_DISENGAGE_REQUEST(remote_vars->version));
+
+		/*
+		 * Other side rebooted and previous XPC did support the
+		 * disengage request, but the new one doesn't.
+		 */
+
+		xpc_clear_partition_engaged(1UL << partid);
+		xpc_clear_partition_disengage_request(1UL << partid);
+
+		xpc_update_partition_info(part, remote_rp_version,
+						&remote_rp_stamp, remote_rp_pa,
+						remote_vars_pa, remote_vars);
+		reactivate = 1;
+
+	} else {
+		DBUG_ON(!XPC_SUPPORTS_DISENGAGE_REQUEST(remote_vars->version));
+
+		stamp_diff = xpc_compare_stamps(&part->remote_rp_stamp,
+							&remote_rp_stamp);
+		if (stamp_diff != 0) {
+			DBUG_ON(stamp_diff >= 0);
+
+			/*
+			 * Other side rebooted and the previous XPC did support
+			 * the disengage request, as does the new one.
+			 */
+
+			DBUG_ON(xpc_partition_engaged(1UL << partid));
+			DBUG_ON(xpc_partition_disengage_requested(1UL <<
+								partid));
+
+			xpc_update_partition_info(part, remote_rp_version,
+						&remote_rp_stamp, remote_rp_pa,
+						remote_vars_pa, remote_vars);
+			reactivate = 1;
+		}
+	}
+
+	if (!xpc_partition_disengaged(part)) {
+		/* still waiting on other side to disengage from us */
+		return;
+	}
+
+	if (reactivate) {
+		part->reactivate_nasid = nasid;
+		XPC_DEACTIVATE_PARTITION(part, xpcReactivating);
+
+	} else if (XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version) &&
+			xpc_partition_disengage_requested(1UL << partid)) {
+		XPC_DEACTIVATE_PARTITION(part, xpcOtherGoingDown);
 	}
 }
 
@@ -643,14 +802,17 @@ xpc_identify_act_IRQ_sender(void)
 	u64 nasid;			/* remote nasid */
 	int n_IRQs_detected = 0;
 	AMO_t *act_amos;
-	struct xpc_rsvd_page *rp = (struct xpc_rsvd_page *) xpc_rsvd_page;
 
 
-	act_amos = xpc_vars->act_amos;
+	act_amos = xpc_vars->amos_page + XPC_ACTIVATE_IRQ_AMOS;
 
 
 	/* scan through act AMO variable looking for non-zero entries */
-	for (word = 0; word < XP_NASID_MASK_WORDS; word++) {
+	for (word = 0; word < xp_nasid_mask_words; word++) {
+
+		if (xpc_exiting) {
+			break;
+		}
 
 		nasid_mask = xpc_IPI_receive(&act_amos[word]);
 		if (nasid_mask == 0) {
@@ -668,7 +830,7 @@ xpc_identify_act_IRQ_sender(void)
 		 * remote nasid in our reserved pages machine mask.
 		 * This is used in the event of module reload.
 		 */
-		rp->mach_nasids[word] |= nasid_mask;
+		xpc_mach_nasids[word] |= nasid_mask;
 
 
 		/* locate the nasid(s) which sent interrupts */
@@ -687,6 +849,55 @@ xpc_identify_act_IRQ_sender(void)
 }
 
 
+/*
+ * See if the other side has responded to a partition disengage request
+ * from us.
+ */
+int
+xpc_partition_disengaged(struct xpc_partition *part)
+{
+	partid_t partid = XPC_PARTID(part);
+	int disengaged;
+
+
+	disengaged = (xpc_partition_engaged(1UL << partid) == 0);
+	if (part->disengage_request_timeout) {
+		if (!disengaged) {
+			if (jiffies < part->disengage_request_timeout) {
+				/* timelimit hasn't been reached yet */
+				return 0;
+			}
+
+			/*
+			 * Other side hasn't responded to our disengage
+			 * request in a timely fashion, so assume it's dead.
+			 */
+
+			xpc_clear_partition_engaged(1UL << partid);
+			disengaged = 1;
+		}
+		part->disengage_request_timeout = 0;
+
+		/* cancel the timer function, provided it's not us */
+		if (!in_interrupt()) {
+			del_singleshot_timer_sync(&part->
+						      disengage_request_timer);
+		}
+
+		DBUG_ON(part->act_state != XPC_P_DEACTIVATING &&
+					part->act_state != XPC_P_INACTIVE);
+		if (part->act_state != XPC_P_INACTIVE) {
+			xpc_wakeup_channel_mgr(part);
+		}
+
+		if (XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version)) {
+			xpc_cancel_partition_disengage_request(part);
+		}
+	}
+	return disengaged;
+}
+
+
 /*
  * Mark specified partition as active.
  */
@@ -721,7 +932,6 @@ xpc_deactivate_partition(const int line, struct xpc_partition *part,
 				enum xpc_retval reason)
 {
 	unsigned long irq_flags;
-	partid_t partid = XPC_PARTID(part);
 
 
 	spin_lock_irqsave(&part->act_lock, irq_flags);
@@ -749,17 +959,27 @@ xpc_deactivate_partition(const int line, struct xpc_partition *part,
 
 	spin_unlock_irqrestore(&part->act_lock, irq_flags);
 
-	XPC_DISALLOW_HB(partid, xpc_vars);
+	if (XPC_SUPPORTS_DISENGAGE_REQUEST(part->remote_vars_version)) {
+		xpc_request_partition_disengage(part);
+		xpc_IPI_send_disengage(part);
 
-	dev_dbg(xpc_part, "bringing partition %d down, reason = %d\n", partid,
+		/* set a timelimit on the disengage request */
-		reason);
+		part->disengage_request_timeout = jiffies +
+					(xpc_disengage_request_timelimit * HZ);
+		part->disengage_request_timer.expires =
+					part->disengage_request_timeout;
+		add_timer(&part->disengage_request_timer);
+	}
 
-	xpc_partition_down(part, reason);
+	dev_dbg(xpc_part, "bringing partition %d down, reason = %d\n",
+		XPC_PARTID(part), reason);
+
+	xpc_partition_going_down(part, reason);
 }
 
 
 /*
- * Mark specified partition as active.
+ * Mark specified partition as inactive.
  */
 void
 xpc_mark_partition_inactive(struct xpc_partition *part)
@@ -792,9 +1012,10 @@ xpc_discovery(void)
 	void *remote_rp_base;
 	struct xpc_rsvd_page *remote_rp;
 	struct xpc_vars *remote_vars;
-	u64 remote_rsvd_page_pa;
+	u64 remote_rp_pa;
 	u64 remote_vars_pa;
 	int region;
+	int region_size;
 	int max_regions;
 	int nasid;
 	struct xpc_rsvd_page *rp;
@@ -804,7 +1025,8 @@ xpc_discovery(void)
 	enum xpc_retval ret;
 
 
-	remote_rp = xpc_kmalloc_cacheline_aligned(XPC_RSVD_PAGE_ALIGNED_SIZE,
+	remote_rp = xpc_kmalloc_cacheline_aligned(XPC_RP_HEADER_SIZE +
+						xp_nasid_mask_bytes,
 						GFP_KERNEL, &remote_rp_base);
 	if (remote_rp == NULL) {
 		return;
@@ -812,13 +1034,13 @@ xpc_discovery(void)
 	remote_vars = (struct xpc_vars *) remote_rp;
 
 
-	discovered_nasids = kmalloc(sizeof(u64) * XP_NASID_MASK_WORDS,
+	discovered_nasids = kmalloc(sizeof(u64) * xp_nasid_mask_words,
 							GFP_KERNEL);
 	if (discovered_nasids == NULL) {
 		kfree(remote_rp_base);
 		return;
 	}
-	memset(discovered_nasids, 0, sizeof(u64) * XP_NASID_MASK_WORDS);
+	memset(discovered_nasids, 0, sizeof(u64) * xp_nasid_mask_words);
 
 	rp = (struct xpc_rsvd_page *) xpc_rsvd_page;
 
@@ -827,11 +1049,19 @@ xpc_discovery(void)
 	 * nodes that can comprise an access protection grouping. The access
 	 * protection is in regards to memory, IOI and IPI.
 	 */
-//>>> move the next two #defines into either include/asm-ia64/sn/arch.h or
+	max_regions = 64;
-//>>> include/asm-ia64/sn/addrs.h
+	region_size = sn_region_size;
-#define SH1_MAX_REGIONS		64
+
-#define SH2_MAX_REGIONS		256
+	switch (region_size) {
-	max_regions = is_shub2() ? SH2_MAX_REGIONS : SH1_MAX_REGIONS;
+	case 128:
+		max_regions *= 2;
+	case 64:
+		max_regions *= 2;
+	case 32:
+		max_regions *= 2;
+		region_size = 16;
+		DBUG_ON(!is_shub2());
+	}
 
 	for (region = 0; region < max_regions; region++) {
 
@@ -841,8 +1071,8 @@ xpc_discovery(void)
 
 		dev_dbg(xpc_part, "searching region %d\n", region);
 
-		for (nasid = (region * sn_region_size * 2);
+		for (nasid = (region * region_size * 2);
-		     nasid < ((region + 1) * sn_region_size * 2);
+		     nasid < ((region + 1) * region_size * 2);
 		     nasid += 2) {
 
 			if ((volatile int) xpc_exiting) {
@@ -852,14 +1082,14 @@ xpc_discovery(void)
 			dev_dbg(xpc_part, "checking nasid %d\n", nasid);
 
 
-			if (XPC_NASID_IN_ARRAY(nasid, rp->part_nasids)) {
+			if (XPC_NASID_IN_ARRAY(nasid, xpc_part_nasids)) {
 				dev_dbg(xpc_part, "PROM indicates Nasid %d is "
 					"part of the local partition; skipping "
 					"region\n", nasid);
 				break;
 			}
 
-			if (!(XPC_NASID_IN_ARRAY(nasid, rp->mach_nasids))) {
+			if (!(XPC_NASID_IN_ARRAY(nasid, xpc_mach_nasids))) {
 				dev_dbg(xpc_part, "PROM indicates Nasid %d was "
 					"not on Numa-Link network at reset\n",
 					nasid);
@@ -877,7 +1107,7 @@ xpc_discovery(void)
 			/* pull over the reserved page structure */
 
 			ret = xpc_get_remote_rp(nasid, discovered_nasids,
-					      remote_rp, &remote_rsvd_page_pa);
+					      remote_rp, &remote_rp_pa);
 			if (ret != xpcSuccess) {
 				dev_dbg(xpc_part, "unable to get reserved page "
 					"from nasid %d, reason=%d\n", nasid,
@@ -948,6 +1178,13 @@ xpc_discovery(void)
 				remote_vars->act_nasid,
 				remote_vars->act_phys_cpuid);
 
+			if (XPC_SUPPORTS_DISENGAGE_REQUEST(remote_vars->
+								version)) {
+				part->remote_amos_page_pa =
+						remote_vars->amos_page_pa;
+				xpc_mark_partition_disengaged(part);
+				xpc_cancel_partition_disengage_request(part);
+			}
 			xpc_IPI_send_activate(remote_vars);
 		}
 	}
@@ -974,12 +1211,12 @@ xpc_initiate_partid_to_nasids(partid_t partid, void *nasid_mask)
 		return xpcPartitionDown;
 	}
 
-	part_nasid_pa = part->remote_rp_pa +
+	memset(nasid_mask, 0, XP_NASID_MASK_BYTES);
-		(u64) &((struct xpc_rsvd_page *) 0)->part_nasids;
+
+	part_nasid_pa = (u64) XPC_RP_PART_NASIDS(part->remote_rp_pa);
 
 	bte_res = xp_bte_copy(part_nasid_pa, ia64_tpa((u64) nasid_mask),
-				L1_CACHE_ALIGN(XP_NASID_MASK_BYTES),
+			xp_nasid_mask_bytes, (BTE_NOTIFY | BTE_WACQUIRE), NULL);
-				(BTE_NOTIFY | BTE_WACQUIRE), NULL);
 
 	return xpc_map_bte_errors(bte_res);
 }

arch/ia64/sn/pci/pci_dma.c

@@ -326,6 +326,29 @@ int sn_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size)
 {
 	unsigned long addr;
 	int ret;
+	struct ia64_sal_retval isrv;
+
+	/*
+	 * First, try the SN_SAL_IOIF_PCI_SAFE SAL call which can work
+	 * around hw issues at the pci bus level.  SGI proms older than
+	 * 4.10 don't implment this.
+	 */
+
+	SAL_CALL(isrv, SN_SAL_IOIF_PCI_SAFE,
+		pci_domain_nr(bus), bus->number,
+		0, /* io */
+		0, /* read */
+		port, size, __pa(val));
+
+	if (isrv.status == 0)
+		return size;
+
+	/*
+	 * If the above failed, retry using the SAL_PROBE call which should
+	 * be present in all proms (but which cannot work round PCI chipset
+	 * bugs).  This code is retained for compatability with old
+	 * pre-4.10 proms, and should be removed at some point in the future.
+	 */
 
 	if (!SN_PCIBUS_BUSSOFT(bus))
 		return -ENODEV;
@@ -349,6 +372,29 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
 	int ret = size;
 	unsigned long paddr;
 	unsigned long *addr;
+	struct ia64_sal_retval isrv;
+
+	/*
+	 * First, try the SN_SAL_IOIF_PCI_SAFE SAL call which can work
+	 * around hw issues at the pci bus level.  SGI proms older than
+	 * 4.10 don't implment this.
+	 */
+
+	SAL_CALL(isrv, SN_SAL_IOIF_PCI_SAFE,
+		pci_domain_nr(bus), bus->number,
+		0, /* io */
+		1, /* write */
+		port, size, __pa(&val));
+
+	if (isrv.status == 0)
+		return size;
+
+	/*
+	 * If the above failed, retry using the SAL_PROBE call which should
+	 * be present in all proms (but which cannot work round PCI chipset
+	 * bugs).  This code is retained for compatability with old
+	 * pre-4.10 proms, and should be removed at some point in the future.
+	 */
 
 	if (!SN_PCIBUS_BUSSOFT(bus)) {
 		ret = -ENODEV;

arch/ia64/sn/pci/pcibr/pcibr_reg.c

@@ -8,6 +8,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/types.h>
+#include <asm/sn/io.h>
 #include <asm/sn/pcibr_provider.h>
 #include <asm/sn/pcibus_provider_defs.h>
 #include <asm/sn/pcidev.h>
@@ -29,10 +30,10 @@ void pcireg_control_bit_clr(struct pcibus_info *pcibus_info, uint64_t bits)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ptr->tio.cp_control &= ~bits;
+			__sn_clrq_relaxed(&ptr->tio.cp_control, bits);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ptr->pic.p_wid_control &= ~bits;
+			__sn_clrq_relaxed(&ptr->pic.p_wid_control, bits);
 			break;
 		default:
 			panic
@@ -49,10 +50,10 @@ void pcireg_control_bit_set(struct pcibus_info *pcibus_info, uint64_t bits)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ptr->tio.cp_control |= bits;
+			__sn_setq_relaxed(&ptr->tio.cp_control, bits);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ptr->pic.p_wid_control |= bits;
+			__sn_setq_relaxed(&ptr->pic.p_wid_control, bits);
 			break;
 		default:
 			panic
@@ -73,10 +74,10 @@ uint64_t pcireg_tflush_get(struct pcibus_info *pcibus_info)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ret = ptr->tio.cp_tflush;
+			ret = __sn_readq_relaxed(&ptr->tio.cp_tflush);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ret = ptr->pic.p_wid_tflush;
+			ret = __sn_readq_relaxed(&ptr->pic.p_wid_tflush);
 			break;
 		default:
 			panic
@@ -103,10 +104,10 @@ uint64_t pcireg_intr_status_get(struct pcibus_info * pcibus_info)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ret = ptr->tio.cp_int_status;
+			ret = __sn_readq_relaxed(&ptr->tio.cp_int_status);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ret = ptr->pic.p_int_status;
+			ret = __sn_readq_relaxed(&ptr->pic.p_int_status);
 			break;
 		default:
 			panic
@@ -127,10 +128,10 @@ void pcireg_intr_enable_bit_clr(struct pcibus_info *pcibus_info, uint64_t bits)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ptr->tio.cp_int_enable &= ~bits;
+			__sn_clrq_relaxed(&ptr->tio.cp_int_enable, bits);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ptr->pic.p_int_enable &= ~bits;
+			__sn_clrq_relaxed(&ptr->pic.p_int_enable, ~bits);
 			break;
 		default:
 			panic
@@ -147,10 +148,10 @@ void pcireg_intr_enable_bit_set(struct pcibus_info *pcibus_info, uint64_t bits)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ptr->tio.cp_int_enable |= bits;
+			__sn_setq_relaxed(&ptr->tio.cp_int_enable, bits);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ptr->pic.p_int_enable |= bits;
+			__sn_setq_relaxed(&ptr->pic.p_int_enable, bits);
 			break;
 		default:
 			panic
@@ -171,14 +172,16 @@ void pcireg_intr_addr_addr_set(struct pcibus_info *pcibus_info, int int_n,
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ptr->tio.cp_int_addr[int_n] &= ~TIOCP_HOST_INTR_ADDR;
+			__sn_clrq_relaxed(&ptr->tio.cp_int_addr[int_n],
-			ptr->tio.cp_int_addr[int_n] |=
+			    TIOCP_HOST_INTR_ADDR);
-			    (addr & TIOCP_HOST_INTR_ADDR);
+			__sn_setq_relaxed(&ptr->tio.cp_int_addr[int_n],
+			    (addr & TIOCP_HOST_INTR_ADDR));
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ptr->pic.p_int_addr[int_n] &= ~PIC_HOST_INTR_ADDR;
+			__sn_clrq_relaxed(&ptr->pic.p_int_addr[int_n],
-			ptr->pic.p_int_addr[int_n] |=
+			    PIC_HOST_INTR_ADDR);
-			    (addr & PIC_HOST_INTR_ADDR);
+			__sn_setq_relaxed(&ptr->pic.p_int_addr[int_n],
+			    (addr & PIC_HOST_INTR_ADDR));
 			break;
 		default:
 			panic
@@ -198,10 +201,10 @@ void pcireg_force_intr_set(struct pcibus_info *pcibus_info, int int_n)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ptr->tio.cp_force_pin[int_n] = 1;
+			writeq(1, &ptr->tio.cp_force_pin[int_n]);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ptr->pic.p_force_pin[int_n] = 1;
+			writeq(1, &ptr->pic.p_force_pin[int_n]);
 			break;
 		default:
 			panic
@@ -222,10 +225,12 @@ uint64_t pcireg_wrb_flush_get(struct pcibus_info *pcibus_info, int device)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ret = ptr->tio.cp_wr_req_buf[device];
+			ret =
+			    __sn_readq_relaxed(&ptr->tio.cp_wr_req_buf[device]);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ret = ptr->pic.p_wr_req_buf[device];
+			ret =
+			    __sn_readq_relaxed(&ptr->pic.p_wr_req_buf[device]);
 			break;
 		default:
 		      panic("pcireg_wrb_flush_get: unknown bridgetype bridge 0x%p", (void *)ptr);
@@ -244,10 +249,10 @@ void pcireg_int_ate_set(struct pcibus_info *pcibus_info, int ate_index,
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ptr->tio.cp_int_ate_ram[ate_index] = (uint64_t) val;
+			writeq(val, &ptr->tio.cp_int_ate_ram[ate_index]);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ptr->pic.p_int_ate_ram[ate_index] = (uint64_t) val;
+			writeq(val, &ptr->pic.p_int_ate_ram[ate_index]);
 			break;
 		default:
 			panic
@@ -265,12 +270,10 @@ uint64_t *pcireg_int_ate_addr(struct pcibus_info *pcibus_info, int ate_index)
 	if (pcibus_info) {
 		switch (pcibus_info->pbi_bridge_type) {
 		case PCIBR_BRIDGETYPE_TIOCP:
-			ret =
+			ret = &ptr->tio.cp_int_ate_ram[ate_index];
-			    (uint64_t *) & (ptr->tio.cp_int_ate_ram[ate_index]);
 			break;
 		case PCIBR_BRIDGETYPE_PIC:
-			ret =
+			ret = &ptr->pic.p_int_ate_ram[ate_index];
-			    (uint64_t *) & (ptr->pic.p_int_ate_ram[ate_index]);
 			break;
 		default:
 			panic

arch/ia64/sn/pci/tioca_provider.c

@@ -11,6 +11,7 @@
 #include <linux/pci.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/addrs.h>
+#include <asm/sn/io.h>
 #include <asm/sn/pcidev.h>
 #include <asm/sn/pcibus_provider_defs.h>
 #include <asm/sn/tioca_provider.h>
@@ -37,7 +38,7 @@ tioca_gart_init(struct tioca_kernel *tioca_kern)
 	uint64_t offset;
 	struct page *tmp;
 	struct tioca_common *tioca_common;
-	volatile struct tioca *ca_base;
+	struct tioca *ca_base;
 
 	tioca_common = tioca_kern->ca_common;
 	ca_base = (struct tioca *)tioca_common->ca_common.bs_base;
@@ -174,27 +175,29 @@ tioca_gart_init(struct tioca_kernel *tioca_kern)
 	 * 	DISABLE GART PREFETCHING due to hw bug tracked in SGI PV930029
 	 */
 
-	ca_base->ca_control1 |= CA_AGPDMA_OP_ENB_COMBDELAY;	/* PV895469 ? */
+	__sn_setq_relaxed(&ca_base->ca_control1,
-	ca_base->ca_control2 &= ~(CA_GART_MEM_PARAM);
+			CA_AGPDMA_OP_ENB_COMBDELAY);	/* PV895469 ? */
-	ca_base->ca_control2 |= (0x2ull << CA_GART_MEM_PARAM_SHFT);
+	__sn_clrq_relaxed(&ca_base->ca_control2, CA_GART_MEM_PARAM);
+	__sn_setq_relaxed(&ca_base->ca_control2,
+			(0x2ull << CA_GART_MEM_PARAM_SHFT));
 	tioca_kern->ca_gart_iscoherent = 1;
-	ca_base->ca_control2 &=
+	__sn_clrq_relaxed(&ca_base->ca_control2,
-	    ~(CA_GART_WR_PREFETCH_ENB | CA_GART_RD_PREFETCH_ENB);
+	    		(CA_GART_WR_PREFETCH_ENB | CA_GART_RD_PREFETCH_ENB));
 
 	/*
 	 * Unmask GART fetch error interrupts.  Clear residual errors first.
 	 */
 
-	ca_base->ca_int_status_alias = CA_GART_FETCH_ERR;
+	writeq(CA_GART_FETCH_ERR, &ca_base->ca_int_status_alias);
-	ca_base->ca_mult_error_alias = CA_GART_FETCH_ERR;
+	writeq(CA_GART_FETCH_ERR, &ca_base->ca_mult_error_alias);
-	ca_base->ca_int_mask &= ~CA_GART_FETCH_ERR;
+	__sn_clrq_relaxed(&ca_base->ca_int_mask, CA_GART_FETCH_ERR);
 
 	/*
 	 * Program the aperature and gart registers in TIOCA
 	 */
 
-	ca_base->ca_gart_aperature = ap_reg;
+	writeq(ap_reg, &ca_base->ca_gart_aperature);
-	ca_base->ca_gart_ptr_table = tioca_kern->ca_gart_coretalk_addr | 1;
+	writeq(tioca_kern->ca_gart_coretalk_addr|1, &ca_base->ca_gart_ptr_table);
 
 	return 0;
 }
@@ -211,7 +214,6 @@ void
 tioca_fastwrite_enable(struct tioca_kernel *tioca_kern)
 {
 	int cap_ptr;
-	uint64_t ca_control1;
 	uint32_t reg;
 	struct tioca *tioca_base;
 	struct pci_dev *pdev;
@@ -256,9 +258,7 @@ tioca_fastwrite_enable(struct tioca_kernel *tioca_kern)
 	 */
 
 	tioca_base = (struct tioca *)common->ca_common.bs_base;
-	ca_control1 = tioca_base->ca_control1;
+	__sn_setq_relaxed(&tioca_base->ca_control1, CA_AGP_FW_ENABLE);
-	ca_control1 |= CA_AGP_FW_ENABLE;
-	tioca_base->ca_control1 = ca_control1;
 }
 
 EXPORT_SYMBOL(tioca_fastwrite_enable);	/* used by agp-sgi */
@@ -345,7 +345,7 @@ tioca_dma_d48(struct pci_dev *pdev, uint64_t paddr)
 		return 0;
 	}
 
-	agp_dma_extn = ca_base->ca_agp_dma_addr_extn;
+	agp_dma_extn = __sn_readq_relaxed(&ca_base->ca_agp_dma_addr_extn);
 	if (node_upper != (agp_dma_extn >> CA_AGP_DMA_NODE_ID_SHFT)) {
 		printk(KERN_ERR "%s:  coretalk upper node (%u) "
 		       "mismatch with ca_agp_dma_addr_extn (%lu)\n",

arch/ia64/sn/pci/tioce_provider.c

@@ -11,6 +11,7 @@
 #include <linux/pci.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/addrs.h>
+#include <asm/sn/io.h>
 #include <asm/sn/pcidev.h>
 #include <asm/sn/pcibus_provider_defs.h>
 #include <asm/sn/tioce_provider.h>
@@ -227,7 +228,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
 
 		ate = ATE_MAKE(addr, pagesize);
 		ate_shadow[i + j] = ate;
-		ate_reg[i + j] = ate;
+		writeq(ate, &ate_reg[i + j]);
 		addr += pagesize;
 	}
 
@@ -268,10 +269,10 @@ tioce_dma_d32(struct pci_dev *pdev, uint64_t ct_addr)
 	pcidev_to_tioce(pdev, &ce_mmr, &ce_kern, &port);
 
 	if (ce_kern->ce_port[port].dirmap_refcnt == 0) {
-		volatile uint64_t tmp;
+		uint64_t tmp;
 
 		ce_kern->ce_port[port].dirmap_shadow = ct_upper;
-		ce_mmr->ce_ure_dir_map[port] = ct_upper;
+		writeq(ct_upper, &ce_mmr->ce_ure_dir_map[port]);
 		tmp = ce_mmr->ce_ure_dir_map[port];
 		dma_ok = 1;
 	} else
@@ -343,7 +344,7 @@ tioce_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir)
 	if (TIOCE_D32_ADDR(bus_addr)) {
 		if (--ce_kern->ce_port[port].dirmap_refcnt == 0) {
 			ce_kern->ce_port[port].dirmap_shadow = 0;
-			ce_mmr->ce_ure_dir_map[port] = 0;
+			writeq(0, &ce_mmr->ce_ure_dir_map[port]);
 		}
 	} else {
 		struct tioce_dmamap *map;
@@ -582,18 +583,18 @@ tioce_kern_init(struct tioce_common *tioce_common)
 	 */
 
 	tioce_mmr = (struct tioce *)tioce_common->ce_pcibus.bs_base;
-	tioce_mmr->ce_ure_page_map &= ~CE_URE_PAGESIZE_MASK;
+	__sn_clrq_relaxed(&tioce_mmr->ce_ure_page_map, CE_URE_PAGESIZE_MASK);
-	tioce_mmr->ce_ure_page_map |= CE_URE_256K_PAGESIZE;
+	__sn_setq_relaxed(&tioce_mmr->ce_ure_page_map, CE_URE_256K_PAGESIZE);
 	tioce_kern->ce_ate3240_pagesize = KB(256);
 
 	for (i = 0; i < TIOCE_NUM_M40_ATES; i++) {
 		tioce_kern->ce_ate40_shadow[i] = 0;
-		tioce_mmr->ce_ure_ate40[i] = 0;
+		writeq(0, &tioce_mmr->ce_ure_ate40[i]);
 	}
 
 	for (i = 0; i < TIOCE_NUM_M3240_ATES; i++) {
 		tioce_kern->ce_ate3240_shadow[i] = 0;
-		tioce_mmr->ce_ure_ate3240[i] = 0;
+		writeq(0, &tioce_mmr->ce_ure_ate3240[i]);
 	}
 
 	return tioce_kern;
@@ -665,7 +666,7 @@ tioce_force_interrupt(struct sn_irq_info *sn_irq_info)
 	default:
 		return;
 	}
-	ce_mmr->ce_adm_force_int = force_int_val;
+	writeq(force_int_val, &ce_mmr->ce_adm_force_int);
 }
 
 /**
@@ -686,6 +687,7 @@ tioce_target_interrupt(struct sn_irq_info *sn_irq_info)
 	struct tioce_common *ce_common;
 	struct tioce *ce_mmr;
 	int bit;
+	uint64_t vector;
 
 	pcidev_info = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
 	if (!pcidev_info)
@@ -696,11 +698,11 @@ tioce_target_interrupt(struct sn_irq_info *sn_irq_info)
 
 	bit = sn_irq_info->irq_int_bit;
 
-	ce_mmr->ce_adm_int_mask |= (1UL << bit);
+	__sn_setq_relaxed(&ce_mmr->ce_adm_int_mask, (1UL << bit));
-	ce_mmr->ce_adm_int_dest[bit] =
+	vector = (uint64_t)sn_irq_info->irq_irq << INTR_VECTOR_SHFT;
-		((uint64_t)sn_irq_info->irq_irq << INTR_VECTOR_SHFT) |
+	vector |= sn_irq_info->irq_xtalkaddr;
-			   sn_irq_info->irq_xtalkaddr;
+	writeq(vector, &ce_mmr->ce_adm_int_dest[bit]);
-	ce_mmr->ce_adm_int_mask &= ~(1UL << bit);
+	__sn_clrq_relaxed(&ce_mmr->ce_adm_int_mask, (1UL << bit));
 
 	tioce_force_interrupt(sn_irq_info);
 }

drivers/char/agp/sgi-agp.c

@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/agp_backend.h>
 #include <asm/sn/addrs.h>
+#include <asm/sn/io.h>
 #include <asm/sn/pcidev.h>
 #include <asm/sn/pcibus_provider_defs.h>
 #include <asm/sn/tioca_provider.h>

drivers/char/mmtimer.c

@@ -441,7 +441,7 @@ static irqreturn_t
 mmtimer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	int i;
-	mmtimer_t *base = timers + cpuid_to_cnodeid(smp_processor_id()) *
+	mmtimer_t *base = timers + cpu_to_node(smp_processor_id()) *
 						NUM_COMPARATORS;
 	unsigned long expires = 0;
 	int result = IRQ_NONE;
@@ -608,7 +608,7 @@ static int sgi_timer_set(struct k_itimer *timr, int flags,
 	 */
 	preempt_disable();
 
-	nodeid =  cpuid_to_cnodeid(smp_processor_id());
+	nodeid =  cpu_to_node(smp_processor_id());
 	base = timers + nodeid * NUM_COMPARATORS;
 retry:
 	/* Don't use an allocated timer, or a deleted one that's pending */

drivers/char/snsc.c

@@ -377,7 +377,7 @@ scdrv_init(void)
 	dev_t first_dev, dev;
 	nasid_t event_nasid = ia64_sn_get_console_nasid();
 
-	if (alloc_chrdev_region(&first_dev, 0, numionodes,
+	if (alloc_chrdev_region(&first_dev, 0, num_cnodes,
 				SYSCTL_BASENAME) < 0) {
 		printk("%s: failed to register SN system controller device\n",
 		       __FUNCTION__);
@@ -385,7 +385,7 @@ scdrv_init(void)
 	}
 	snsc_class = class_create(THIS_MODULE, SYSCTL_BASENAME);
 
-	for (cnode = 0; cnode < numionodes; cnode++) {
+	for (cnode = 0; cnode < num_cnodes; cnode++) {
 			geoid = cnodeid_get_geoid(cnode);
 			devnamep = devname;
 			format_module_id(devnamep, geo_module(geoid),

include/asm-ia64/machvec.h

@@ -26,7 +26,7 @@ typedef void ia64_mv_cpu_init_t (void);
 typedef void ia64_mv_irq_init_t (void);
 typedef void ia64_mv_send_ipi_t (int, int, int, int);
 typedef void ia64_mv_timer_interrupt_t (int, void *, struct pt_regs *);
-typedef void ia64_mv_global_tlb_purge_t (unsigned long, unsigned long, unsigned long);
+typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long);
 typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
 typedef unsigned int ia64_mv_local_vector_to_irq (u8);
 typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);

include/asm-ia64/machvec_hpzx1.h

@@ -1,8 +1,7 @@
 #ifndef _ASM_IA64_MACHVEC_HPZX1_h
 #define _ASM_IA64_MACHVEC_HPZX1_h
 
-extern ia64_mv_setup_t dig_setup;
+extern ia64_mv_setup_t			dig_setup;
-extern ia64_mv_setup_t			sba_setup;
 extern ia64_mv_dma_alloc_coherent	sba_alloc_coherent;
 extern ia64_mv_dma_free_coherent	sba_free_coherent;
 extern ia64_mv_dma_map_single		sba_map_single;
@@ -19,15 +18,15 @@ extern ia64_mv_dma_mapping_error	sba_dma_mapping_error;
  * platform's machvec structure.  When compiling a non-generic kernel,
  * the macros are used directly.
  */
-#define platform_name			"hpzx1"
+#define platform_name				"hpzx1"
-#define platform_setup			sba_setup
+#define platform_setup				dig_setup
-#define platform_dma_init		machvec_noop
+#define platform_dma_init			machvec_noop
-#define platform_dma_alloc_coherent	sba_alloc_coherent
+#define platform_dma_alloc_coherent		sba_alloc_coherent
-#define platform_dma_free_coherent	sba_free_coherent
+#define platform_dma_free_coherent		sba_free_coherent
-#define platform_dma_map_single		sba_map_single
+#define platform_dma_map_single			sba_map_single
-#define platform_dma_unmap_single	sba_unmap_single
+#define platform_dma_unmap_single		sba_unmap_single
-#define platform_dma_map_sg		sba_map_sg
+#define platform_dma_map_sg			sba_map_sg
-#define platform_dma_unmap_sg		sba_unmap_sg
+#define platform_dma_unmap_sg			sba_unmap_sg
 #define platform_dma_sync_single_for_cpu	machvec_dma_sync_single
 #define platform_dma_sync_sg_for_cpu		machvec_dma_sync_sg
 #define platform_dma_sync_single_for_device	machvec_dma_sync_single

include/asm-ia64/machvec_hpzx1_swiotlb.h

@@ -2,7 +2,6 @@
 #define _ASM_IA64_MACHVEC_HPZX1_SWIOTLB_h
 
 extern ia64_mv_setup_t				dig_setup;
-extern ia64_mv_dma_init				hwsw_init;
 extern ia64_mv_dma_alloc_coherent		hwsw_alloc_coherent;
 extern ia64_mv_dma_free_coherent		hwsw_free_coherent;
 extern ia64_mv_dma_map_single			hwsw_map_single;
@@ -26,7 +25,7 @@ extern ia64_mv_dma_sync_sg_for_device		hwsw_sync_sg_for_device;
 #define platform_name				"hpzx1_swiotlb"
 
 #define platform_setup				dig_setup
-#define platform_dma_init			hwsw_init
+#define platform_dma_init			machvec_noop
 #define platform_dma_alloc_coherent		hwsw_alloc_coherent
 #define platform_dma_free_coherent		hwsw_free_coherent
 #define platform_dma_map_single			hwsw_map_single

include/asm-ia64/meminit.h

@@ -16,10 +16,11 @@
  * 	- initrd (optional)
  * 	- command line string
  * 	- kernel code & data
+ * 	- Kernel memory map built from EFI memory map
  *
  * More could be added if necessary
  */
-#define IA64_MAX_RSVD_REGIONS 5
+#define IA64_MAX_RSVD_REGIONS 6
 
 struct rsvd_region {
 	unsigned long start;	/* virtual address of beginning of element */
@@ -33,6 +34,7 @@ extern void find_memory (void);
 extern void reserve_memory (void);
 extern void find_initrd (void);
 extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg);
+extern void efi_memmap_init(unsigned long *, unsigned long *);
 
 /*
  * For rounding an address to the next IA64_GRANULE_SIZE or order
@@ -41,7 +43,7 @@ extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg
 #define GRANULEROUNDUP(n)	(((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
 #define ORDERROUNDDOWN(n)	((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
   extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
 #else
 # define call_pernode_memory(start, len, func)	(*func)(start, len, 0)

include/asm-ia64/mmzone.h

@@ -15,7 +15,7 @@
 #include <asm/page.h>
 #include <asm/meminit.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
 
 static inline int pfn_to_nid(unsigned long pfn)
 {
@@ -31,6 +31,10 @@ static inline int pfn_to_nid(unsigned long pfn)
 #endif
 }
 
+#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
+extern int early_pfn_to_nid(unsigned long pfn);
+#endif
+
 #ifdef CONFIG_IA64_DIG /* DIG systems are small */
 # define MAX_PHYSNODE_ID	8
 # define NR_NODE_MEMBLKS	(MAX_NUMNODES * 8)
@@ -39,8 +43,8 @@ static inline int pfn_to_nid(unsigned long pfn)
 # define NR_NODE_MEMBLKS	(MAX_NUMNODES * 4)
 #endif
 
-#else /* CONFIG_DISCONTIGMEM */
+#else /* CONFIG_NUMA */
 # define NR_NODE_MEMBLKS	(MAX_NUMNODES * 4)
-#endif /* CONFIG_DISCONTIGMEM */
+#endif /* CONFIG_NUMA */
 
 #endif /* _ASM_IA64_MMZONE_H */

include/asm-ia64/nodedata.h

@@ -17,7 +17,7 @@
 #include <asm/percpu.h>
 #include <asm/mmzone.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
 
 /*
  * Node Data. One of these structures is located on each node of a NUMA system.
@@ -47,6 +47,6 @@ struct ia64_node_data {
  */
 #define NODE_DATA(nid)		(local_node_data->pg_data_ptrs[nid])
 
-#endif /* CONFIG_DISCONTIGMEM */
+#endif /* CONFIG_NUMA */
 
 #endif /* _ASM_IA64_NODEDATA_H */

include/asm-ia64/page.h

@@ -102,15 +102,15 @@ do {						\
 
 #ifdef CONFIG_VIRTUAL_MEM_MAP
 extern int ia64_pfn_valid (unsigned long pfn);
-#else
+#elif defined(CONFIG_FLATMEM)
 # define ia64_pfn_valid(pfn) 1
 #endif
 
-#ifndef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_FLATMEM
 # define pfn_valid(pfn)		(((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
 # define page_to_pfn(page)	((unsigned long) (page - mem_map))
 # define pfn_to_page(pfn)	(mem_map + (pfn))
-#else
+#elif defined(CONFIG_DISCONTIGMEM)
 extern struct page *vmem_map;
 extern unsigned long max_low_pfn;
 # define pfn_valid(pfn)		(((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))

include/asm-ia64/sn/arch.h

@@ -17,6 +17,32 @@
 #include <asm/sn/types.h>
 #include <asm/sn/sn_cpuid.h>
 
+/*
+ * This is the maximum number of NUMALINK nodes that can be part of a single
+ * SSI kernel. This number includes C-brick, M-bricks, and TIOs. Nodes in
+ * remote partitions are NOT included in this number.
+ * The number of compact nodes cannot exceed size of a coherency domain.
+ * The purpose of this define is to specify a node count that includes
+ * all C/M/TIO nodes in an SSI system.
+ *
+ * SGI system can currently support up to 256 C/M nodes plus additional TIO nodes.
+ *
+ * 	Note: ACPI20 has an architectural limit of 256 nodes. When we upgrade
+ * 	to ACPI3.0, this limit will be removed. The notion of "compact nodes"
+ * 	should be deleted and TIOs should be included in MAX_NUMNODES.
+ */
+#define MAX_COMPACT_NODES	512
+
+/*
+ * Maximum number of nodes in all partitions and in all coherency domains.
+ * This is the total number of nodes accessible in the numalink fabric. It
+ * includes all C & M bricks, plus all TIOs.
+ *
+ * This value is also the value of the maximum number of NASIDs in the numalink
+ * fabric.
+ */
+#define MAX_NUMALINK_NODES	16384
+
 /*
  * The following defines attributes of the HUB chip. These attributes are
  * frequently referenced. They are kept in the per-cpu data areas of each cpu.
@@ -40,15 +66,6 @@ DECLARE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
 #define enable_shub_wars_1_1()	(sn_hub_info->shub_1_1_found)
 
 
-/*
- * This is the maximum number of nodes that can be part of a kernel.
- * Effectively, it's the maximum number of compact node ids (cnodeid_t).
- * This is not necessarily the same as MAX_NASIDS.
- */
-#define MAX_COMPACT_NODES	2048
-#define CPUS_PER_NODE		4
-
-
 /*
  * Compact node ID to nasid mappings kept in the per-cpu data areas of each
  * cpu.
@@ -57,7 +74,6 @@ DECLARE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]);
 #define sn_cnodeid_to_nasid	(&__get_cpu_var(__sn_cnodeid_to_nasid[0]))
 
 
-
 extern u8 sn_partition_id;
 extern u8 sn_system_size;
 extern u8 sn_sharing_domain_size;

include/asm-ia64/sn/io.h

@@ -14,7 +14,7 @@
 extern void * sn_io_addr(unsigned long port) __attribute_const__; /* Forward definition */
 extern void __sn_mmiowb(void); /* Forward definition */
 
-extern int numionodes;
+extern int num_cnodes;
 
 #define __sn_mf_a()   ia64_mfa()
 
@@ -35,6 +35,15 @@ extern void sn_dma_flush(unsigned long);
 #define __sn_readl_relaxed ___sn_readl_relaxed
 #define __sn_readq_relaxed ___sn_readq_relaxed
 
+/*
+ * Convenience macros for setting/clearing bits using the above accessors
+ */
+
+#define __sn_setq_relaxed(addr, val) \
+	writeq((__sn_readq_relaxed(addr) | (val)), (addr))
+#define __sn_clrq_relaxed(addr, val) \
+	writeq((__sn_readq_relaxed(addr) & ~(val)), (addr))
+
 /*
  * The following routines are SN Platform specific, called when
  * a reference is made to inX/outX set macros.  SN Platform

include/asm-ia64/sn/klconfig.h

@@ -208,19 +208,6 @@ typedef struct lboard_s {
 	klconf_off_t	brd_next_same;    /* Next BOARD with same nasid */
 } lboard_t;
 
-#define KLCF_NUM_COMPS(_brd)	((_brd)->brd_numcompts)
-#define NODE_OFFSET_TO_KLINFO(n,off)    ((klinfo_t*) TO_NODE_CAC(n,off))
-#define KLCF_NEXT(_brd)         \
-        ((_brd)->brd_next_same ?     \
-         (NODE_OFFSET_TO_LBOARD((_brd)->brd_next_same_host, (_brd)->brd_next_same)): NULL)
-#define KLCF_NEXT_ANY(_brd)         \
-        ((_brd)->brd_next_any ?     \
-         (NODE_OFFSET_TO_LBOARD(NASID_GET(_brd), (_brd)->brd_next_any)): NULL)
-#define KLCF_COMP(_brd, _ndx)   \
-                ((((_brd)->brd_compts[(_ndx)]) == 0) ? 0 : \
-			(NODE_OFFSET_TO_KLINFO(NASID_GET(_brd), (_brd)->brd_compts[(_ndx)])))
-
-
 /*
  * Generic info structure. This stores common info about a 
  * component.
@@ -249,24 +236,11 @@ typedef struct klinfo_s {                  /* Generic info */
 } klinfo_t ;
 
 
-static inline lboard_t *find_lboard_any(lboard_t * start, unsigned char brd_type)
+static inline lboard_t *find_lboard_next(lboard_t * brd)
 {
-        /* Search all boards stored on this node. */
+	if (brd && brd->brd_next_any)
-
+		return NODE_OFFSET_TO_LBOARD(NASID_GET(brd), brd->brd_next_any);
-        while (start) {
+        return NULL;
-                if (start->brd_type == brd_type)
-                        return start;
-                start = KLCF_NEXT_ANY(start);
-        }
-        /* Didn't find it. */
-        return (lboard_t *) NULL;
 }
 
-
-/* external declarations of Linux kernel functions. */
-
-extern lboard_t *root_lboard[];
-extern klinfo_t *find_component(lboard_t *brd, klinfo_t *kli, unsigned char type);
-extern klinfo_t *find_first_component(lboard_t *brd, unsigned char type);
-
 #endif /* _ASM_IA64_SN_KLCONFIG_H */

include/asm-ia64/sn/l1.h

@@ -35,4 +35,16 @@
 #define L1_BRICKTYPE_ATHENA	0x2b            /* + */
 #define L1_BRICKTYPE_DAYTONA	0x7a            /* z */
 
+/* board type response codes */
+#define L1_BOARDTYPE_IP69       0x0100          /* CA */
+#define L1_BOARDTYPE_IP63       0x0200          /* CB */
+#define L1_BOARDTYPE_BASEIO     0x0300          /* IB */
+#define L1_BOARDTYPE_PCIE2SLOT  0x0400          /* IC */
+#define L1_BOARDTYPE_PCIX3SLOT  0x0500          /* ID */
+#define L1_BOARDTYPE_PCIXPCIE4SLOT 0x0600       /* IE */
+#define L1_BOARDTYPE_ABACUS     0x0700          /* AB */
+#define L1_BOARDTYPE_DAYTONA    0x0800          /* AD */
+#define L1_BOARDTYPE_INVAL      (-1)            /* invalid brick type */
+
+
 #endif /* _ASM_IA64_SN_L1_H */

include/asm-ia64/sn/nodepda.h

@@ -55,7 +55,6 @@ struct nodepda_s {
 	 */
 	struct phys_cpuid	phys_cpuid[NR_CPUS];
 	spinlock_t		ptc_lock ____cacheline_aligned_in_smp;
-	spinlock_t		bist_lock;
 };
 
 typedef struct nodepda_s nodepda_t;

include/asm-ia64/sn/sn_cpuid.h

@@ -105,7 +105,6 @@ extern short physical_node_map[];	/* indexed by nasid to get cnode */
 #define cpuid_to_nasid(cpuid)		(sn_nodepda->phys_cpuid[cpuid].nasid)
 #define cpuid_to_subnode(cpuid)		(sn_nodepda->phys_cpuid[cpuid].subnode)
 #define cpuid_to_slice(cpuid)		(sn_nodepda->phys_cpuid[cpuid].slice)
-#define cpuid_to_cnodeid(cpuid)		(physical_node_map[cpuid_to_nasid(cpuid)])
 
 
 /*
@@ -113,8 +112,6 @@ extern short physical_node_map[];	/* indexed by nasid to get cnode */
  * of potentially large tables.
  */
 extern int nasid_slice_to_cpuid(int, int);
-#define nasid_slice_to_cpu_physical_id(nasid, slice)			\
-	cpu_physical_id(nasid_slice_to_cpuid(nasid, slice))
 
 /*
  * cnodeid_to_nasid - convert a cnodeid to a NASID

include/asm-ia64/sn/sn_sal.h

@@ -47,6 +47,7 @@
 #define  SN_SAL_CONSOLE_PUTB			   0x02000028
 #define  SN_SAL_CONSOLE_XMIT_CHARS		   0x0200002a
 #define  SN_SAL_CONSOLE_READC			   0x0200002b
+#define  SN_SAL_SYSCTL_OP			   0x02000030
 #define  SN_SAL_SYSCTL_MODID_GET	           0x02000031
 #define  SN_SAL_SYSCTL_GET                         0x02000032
 #define  SN_SAL_SYSCTL_IOBRICK_MODULE_GET          0x02000033
@@ -67,7 +68,7 @@
 #define  SN_SAL_IOIF_INTERRUPT			   0x0200004a
 #define  SN_SAL_HWPERF_OP			   0x02000050   // lock
 #define  SN_SAL_IOIF_ERROR_INTERRUPT		   0x02000051
-
+#define  SN_SAL_IOIF_PCI_SAFE			   0x02000052
 #define  SN_SAL_IOIF_SLOT_ENABLE		   0x02000053
 #define  SN_SAL_IOIF_SLOT_DISABLE		   0x02000054
 #define  SN_SAL_IOIF_GET_HUBDEV_INFO		   0x02000055
@@ -100,6 +101,13 @@
 #define SAL_INTR_ALLOC		1
 #define SAL_INTR_FREE		2
 
+/*
+ * operations available on the generic SN_SAL_SYSCTL_OP
+ * runtime service
+ */
+#define SAL_SYSCTL_OP_IOBOARD		0x0001  /*  retrieve board type */
+#define SAL_SYSCTL_OP_TIO_JLCK_RST      0x0002  /* issue TIO clock reset */
+
 /*
  * IRouter (i.e. generalized system controller) operations
  */
@@ -198,26 +206,16 @@ ia64_sn_get_master_baseio_nasid(void)
 	return ret_stuff.v0;
 }
 
-static inline char *
+static inline void *
 ia64_sn_get_klconfig_addr(nasid_t nasid)
 {
 	struct ia64_sal_retval ret_stuff;
-	int cnodeid;
 
-	cnodeid = nasid_to_cnodeid(nasid);
 	ret_stuff.status = 0;
 	ret_stuff.v0 = 0;
 	ret_stuff.v1 = 0;
 	ret_stuff.v2 = 0;
 	SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
-
-	/*
-	 * We should panic if a valid cnode nasid does not produce
-	 * a klconfig address.
-	 */
-	if (ret_stuff.status != 0) {
-		panic("ia64_sn_get_klconfig_addr: Returned error %lx\n", ret_stuff.status);
-	}
 	return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL;
 }
 
@@ -694,12 +692,10 @@ sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
 	unsigned long irq_flags;
 
 	cnodeid = nasid_to_cnodeid(get_node_number(paddr));
-	// spin_lock(&NODEPDA(cnodeid)->bist_lock);
 	local_irq_save(irq_flags);
 	ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
 				(u64)nasid_array, perms, 0, 0, 0);
 	local_irq_restore(irq_flags);
-	// spin_unlock(&NODEPDA(cnodeid)->bist_lock);
 	return ret_stuff.status;
 }
 #define SN_MEMPROT_ACCESS_CLASS_0		0x14a080
@@ -873,6 +869,41 @@ ia64_sn_sysctl_event_init(nasid_t nasid)
         return (int) rv.v0;
 }
 
+/*
+ * Ask the system controller on the specified nasid to reset
+ * the CX corelet clock.  Only valid on TIO nodes.
+ */
+static inline int
+ia64_sn_sysctl_tio_clock_reset(nasid_t nasid)
+{
+	struct ia64_sal_retval rv;
+	SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_TIO_JLCK_RST,
+			nasid, 0, 0, 0, 0, 0);
+	if (rv.status != 0)
+		return (int)rv.status;
+	if (rv.v0 != 0)
+		return (int)rv.v0;
+
+	return 0;
+}
+
+/*
+ * Get the associated ioboard type for a given nasid.
+ */
+static inline int
+ia64_sn_sysctl_ioboard_get(nasid_t nasid)
+{
+        struct ia64_sal_retval rv;
+        SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_IOBOARD,
+                        nasid, 0, 0, 0, 0, 0);
+        if (rv.v0 != 0)
+                return (int)rv.v0;
+        if (rv.v1 != 0)
+                return (int)rv.v1;
+
+        return 0;
+}
+
 /**
  * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
  * @nasid: NASID of node to read

include/asm-ia64/sn/tioca_provider.h

@@ -182,11 +182,11 @@ tioca_tlbflush(struct tioca_kernel *tioca_kernel)
 			 * touch every CL aligned GART entry.
 			 */
 
-			ca_base->ca_control2 &= ~(CA_GART_MEM_PARAM);
+			__sn_clrq_relaxed(&ca_base->ca_control2, CA_GART_MEM_PARAM);
-			ca_base->ca_control2 |= CA_GART_FLUSH_TLB;
+			__sn_setq_relaxed(&ca_base->ca_control2, CA_GART_FLUSH_TLB);
-			ca_base->ca_control2 |=
+			__sn_setq_relaxed(&ca_base->ca_control2,
-			    (0x2ull << CA_GART_MEM_PARAM_SHFT);
+			    (0x2ull << CA_GART_MEM_PARAM_SHFT));
-			tmp = ca_base->ca_control2;
+			tmp = __sn_readq_relaxed(&ca_base->ca_control2);
 		}
 
 		return;
@@ -196,8 +196,8 @@ tioca_tlbflush(struct tioca_kernel *tioca_kernel)
 	 * Gart in uncached mode ... need an explicit flush.
 	 */
 
-	ca_base->ca_control2 |= CA_GART_FLUSH_TLB;
+	__sn_setq_relaxed(&ca_base->ca_control2, CA_GART_FLUSH_TLB);
-	tmp = ca_base->ca_control2;
+	tmp = __sn_readq_relaxed(&ca_base->ca_control2);
 }
 
 extern uint32_t	tioca_gart_found;

include/asm-ia64/sn/tiocx.h

@@ -19,6 +19,7 @@ struct cx_id_s {
 
 struct cx_dev {
 	struct cx_id_s cx_id;
+	int bt;				/* board/blade type */
 	void *soft;			/* driver specific */
 	struct hubdev_info *hubdev;
 	struct device dev;
@@ -59,7 +60,7 @@ struct cx_drv {
 extern struct sn_irq_info *tiocx_irq_alloc(nasid_t, int, int, nasid_t, int);
 extern void tiocx_irq_free(struct sn_irq_info *);
 extern int cx_device_unregister(struct cx_dev *);
-extern int cx_device_register(nasid_t, int, int, struct hubdev_info *);
+extern int cx_device_register(nasid_t, int, int, struct hubdev_info *, int);
 extern int cx_driver_unregister(struct cx_drv *);
 extern int cx_driver_register(struct cx_drv *);
 extern uint64_t tiocx_dma_addr(uint64_t addr);

include/asm-ia64/sn/xp.h

@@ -49,7 +49,7 @@
  * C-brick nasids, thus the need for bitmaps which don't account for
  * odd-numbered (non C-brick) nasids.
  */
-#define XP_MAX_PHYSNODE_ID	(MAX_PHYSNODE_ID / 2)
+#define XP_MAX_PHYSNODE_ID	(MAX_NUMALINK_NODES / 2)
 #define XP_NASID_MASK_BYTES	((XP_MAX_PHYSNODE_ID + 7) / 8)
 #define XP_NASID_MASK_WORDS	((XP_MAX_PHYSNODE_ID + 63) / 64)
 
@@ -217,7 +217,17 @@ enum xpc_retval {
 	xpcInvalidPartid,	/* 42: invalid partition ID */
 	xpcLocalPartid,		/* 43: local partition ID */
 
-	xpcUnknownReason	/* 44: unknown reason -- must be last in list */
+	xpcOtherGoingDown,	/* 44: other side going down, reason unknown */
+	xpcSystemGoingDown,	/* 45: system is going down, reason unknown */
+	xpcSystemHalt,		/* 46: system is being halted */
+	xpcSystemReboot,	/* 47: system is being rebooted */
+	xpcSystemPoweroff,	/* 48: system is being powered off */
+
+	xpcDisconnecting,	/* 49: channel disconnecting (closing) */
+
+	xpcOpenCloseError,	/* 50: channel open/close protocol error */
+
+	xpcUnknownReason	/* 51: unknown reason -- must be last in list */
 };
 
 
@@ -342,7 +352,7 @@ typedef void (*xpc_notify_func)(enum xpc_retval reason, partid_t partid,
  *
  * The 'func' field points to the function to call when aynchronous
  * notification is required for such events as: a connection established/lost,
- * or an incomming message received, or an error condition encountered. A
+ * or an incoming message received, or an error condition encountered. A
  * non-NULL 'func' field indicates that there is an active registration for
  * the channel.
  */

include/asm-ia64/sparsemem.h

@@ -0,0 +1,20 @@
+#ifndef _ASM_IA64_SPARSEMEM_H
+#define _ASM_IA64_SPARSEMEM_H
+
+#ifdef CONFIG_SPARSEMEM
+/*
+ * SECTION_SIZE_BITS            2^N: how big each section will be
+ * MAX_PHYSMEM_BITS             2^N: how much memory we can have in that space
+ */
+
+#define SECTION_SIZE_BITS	(30)
+#define MAX_PHYSMEM_BITS	(50)
+#ifdef CONFIG_FORCE_MAX_ZONEORDER
+#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS)
+#undef SECTION_SIZE_BITS
+#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT)
+#endif
+#endif
+
+#endif /* CONFIG_SPARSEMEM */
+#endif /* _ASM_IA64_SPARSEMEM_H */