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

Browse source 
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Prevent people from directly including <asm/rwsem.h>.
  [IA64] remove time interpolator
  [IA64] Convert to generic timekeeping/clocksource
  [IA64] refresh some config files for 64K pagesize
  [IA64] Delete iosapic_free_rte()
  [IA64] fallocate system call
  [IA64] Enable percpu vector domain for IA64_DIG
  [IA64] Enable percpu vector domain for IA64_GENERIC
  [IA64] Support irq migration across domain
  [IA64] Add support for vector domain
  [IA64] Add mapping table between irq and vector
  [IA64] Check if irq is sharable
  [IA64] Fix invalid irq vector assumption for iosapic
  [IA64] Use dynamic irq for iosapic interrupts
  [IA64] Use per iosapic lock for indirect iosapic register access
  [IA64] Cleanup lock order in iosapic_register_intr
  [IA64] Remove duplicated members in iosapic_rte_info
  [IA64] Remove block structure for locking in iosapic.c
This commit is contained in:
Linus Torvalds 2007-07-20 12:02:20 -07:00
commit efa7e8673c
35 changed files with 1191 additions and 1416 deletions
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5
Documentation/kernel-parameters.txt
View file

@ -1154,6 +1154,8 @@ and is between 256 and 4096 characters. It is defined in the file
nointroute [IA-64]
nojitter [IA64] Disables jitter checking for ITC timers.
nolapic [IA-32,APIC] Do not enable or use the local APIC.
nolapic_timer [IA-32,APIC] Do not use the local APIC timer.
@ -1885,6 +1887,9 @@ and is between 256 and 4096 characters. It is defined in the file
vdso=1: enable VDSO (default)
vdso=0: disable VDSO mapping
vector= [IA-64,SMP]
vector=percpu: enable percpu vector domain
video= [FB] Frame buffer configuration
See Documentation/fb/modedb.txt.

41
Documentation/time_interpolators.txt
View file

@ -1,41 +0,0 @@
Time Interpolators
------------------
Time interpolators are a base of time calculation between timer ticks and
allow an accurate determination of time down to the accuracy of the time
source in nanoseconds.
The architecture specific code typically provides gettimeofday and
settimeofday under Linux. The time interpolator provides both if an arch
defines CONFIG_TIME_INTERPOLATION. The arch still must set up timer tick
operations and call the necessary functions to advance the clock.
With the time interpolator a standardized interface exists for time
interpolation between ticks. The provided logic is highly scalable
and has been tested in SMP situations of up to 512 CPUs.
If CONFIG_TIME_INTERPOLATION is defined then the architecture specific code
(or the device drivers - like HPET) may register time interpolators.
These are typically defined in the following way:
static struct time_interpolator my_interpolator {
.frequency = MY_FREQUENCY,
.source = TIME_SOURCE_MMIO32,
.shift = 8, /* scaling for higher accuracy */
.drift = -1, /* Unknown drift */
.jitter = 0 /* time source is stable */
};
void time_init(void)
{
....
/* Initialization of the timer *.
my_interpolator.address = &my_timer;
register_time_interpolator(&my_interpolator);
....
}
For more details see include/linux/timex.h and kernel/timer.c.
Christoph Lameter <christoph@lameter.com>, October 31, 2004

6
arch/ia64/Kconfig
View file

@ -62,7 +62,11 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
config TIME_INTERPOLATION
config GENERIC_TIME
bool
default y
config GENERIC_TIME_VSYSCALL
bool
default y

2
arch/ia64/configs/bigsur_defconfig
View file

@ -85,7 +85,7 @@ CONFIG_MMU=y
CONFIG_SWIOTLB=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_INTERPOLATION=y
CONFIG_GENERIC_TIME=y
CONFIG_EFI=y
CONFIG_GENERIC_IOMAP=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y

2
arch/ia64/configs/gensparse_defconfig
View file

@ -86,7 +86,7 @@ CONFIG_MMU=y
CONFIG_SWIOTLB=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_INTERPOLATION=y
CONFIG_GENERIC_TIME=y
CONFIG_EFI=y
CONFIG_GENERIC_IOMAP=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y

2
arch/ia64/configs/sim_defconfig
View file

@ -86,7 +86,7 @@ CONFIG_MMU=y
CONFIG_SWIOTLB=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_INTERPOLATION=y
CONFIG_GENERIC_TIME=y
CONFIG_EFI=y
CONFIG_GENERIC_IOMAP=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y

2
arch/ia64/configs/sn2_defconfig
View file

@ -93,7 +93,7 @@ CONFIG_SWIOTLB=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_INTERPOLATION=y
CONFIG_GENERIC_TIME=y
CONFIG_DMI=y
CONFIG_EFI=y
CONFIG_GENERIC_IOMAP=y

322
arch/ia64/configs/tiger_defconfig
View file

@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.21-rc3
# Thu Mar 8 11:07:09 2007
# Linux kernel version: 2.6.22
# Thu Jul 19 13:54:47 2007
#
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
@ -19,15 +19,15 @@ CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_IPC_NS is not set
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_UTS_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=20
# CONFIG_CPUSETS is not set
CONFIG_SYSFS_DEPRECATED=y
# CONFIG_RELAY is not set
@ -46,18 +46,19 @@ CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_SLAB=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
# CONFIG_SLOB is not set
#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
@ -65,12 +66,9 @@ CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
#
# Block layer
#
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_BLK_DEV_BSG is not set
#
# IO Schedulers
@ -91,6 +89,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
CONFIG_IA64=y
CONFIG_64BIT=y
CONFIG_ZONE_DMA=y
CONFIG_QUICKLIST=y
CONFIG_MMU=y
CONFIG_SWIOTLB=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
@ -98,7 +97,7 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_INTERPOLATION=y
CONFIG_GENERIC_TIME=y
CONFIG_DMI=y
CONFIG_EFI=y
CONFIG_GENERIC_IOMAP=y
@ -114,8 +113,8 @@ CONFIG_IA64_DIG=y
CONFIG_MCKINLEY=y
# CONFIG_IA64_PAGE_SIZE_4KB is not set
# CONFIG_IA64_PAGE_SIZE_8KB is not set
CONFIG_IA64_PAGE_SIZE_16KB=y
# CONFIG_IA64_PAGE_SIZE_64KB is not set
# CONFIG_IA64_PAGE_SIZE_16KB is not set
CONFIG_IA64_PAGE_SIZE_64KB=y
CONFIG_PGTABLE_3=y
# CONFIG_PGTABLE_4 is not set
# CONFIG_HZ_100 is not set
@ -145,6 +144,9 @@ CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_NR_QUICK=1
CONFIG_VIRT_TO_BUS=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
@ -152,11 +154,11 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_VIRTUAL_MEM_MAP=y
CONFIG_HOLES_IN_ZONE=y
CONFIG_IA32_SUPPORT=y
CONFIG_COMPAT=y
# CONFIG_IA32_SUPPORT is not set
CONFIG_IA64_MCA_RECOVERY=y
CONFIG_PERFMON=y
CONFIG_IA64_PALINFO=y
# CONFIG_IA64_MC_ERR_INJECT is not set
# CONFIG_IA64_ESI is not set
CONFIG_KEXEC=y
# CONFIG_CRASH_DUMP is not set
@ -166,6 +168,7 @@ CONFIG_KEXEC=y
#
CONFIG_EFI_VARS=y
CONFIG_EFI_PCDP=y
CONFIG_DMIID=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m
@ -175,7 +178,6 @@ CONFIG_BINFMT_MISC=m
CONFIG_PM=y
CONFIG_PM_LEGACY=y
# CONFIG_PM_DEBUG is not set
# CONFIG_PM_SYSFS_DEPRECATED is not set
#
# ACPI (Advanced Configuration and Power Interface) Support
@ -205,13 +207,11 @@ CONFIG_ACPI_CONTAINER=m
#
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_SYSCALL=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_ARCH_SUPPORTS_MSI=y
# CONFIG_PCI_MSI is not set
# CONFIG_PCI_DEBUG is not set
#
# PCI Hotplug Support
#
CONFIG_HOTPLUG_PCI=m
# CONFIG_HOTPLUG_PCI_FAKE is not set
CONFIG_HOTPLUG_PCI_ACPI=m
@ -232,7 +232,6 @@ CONFIG_NET=y
#
# Networking options
#
# CONFIG_NETDEBUG is not set
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
@ -270,20 +269,8 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_INET6_TUNNEL is not set
# CONFIG_NETWORK_SECMARK 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
#
# TIPC Configuration (EXPERIMENTAL)
#
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
@ -309,7 +296,17 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
#
# Device Drivers
@ -324,25 +321,9 @@ CONFIG_FW_LOADER=m
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
#
# Connector - unified userspace <-> kernelspace linker
#
# CONFIG_CONNECTOR is not set
#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play support
#
CONFIG_PNP=y
# CONFIG_PNP_DEBUG is not set
@ -350,10 +331,7 @@ CONFIG_PNP=y
# Protocols
#
CONFIG_PNPACPI=y
#
# Block devices
#
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
@ -370,16 +348,11 @@ CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
#
# Misc devices
#
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_IDE_MAX_HWIFS=4
CONFIG_BLK_DEV_IDE=y
@ -396,6 +369,7 @@ CONFIG_BLK_DEV_IDEFLOPPY=y
CONFIG_BLK_DEV_IDESCSI=m
# CONFIG_BLK_DEV_IDEACPI is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y
#
# IDE chipset support/bugfixes
@ -404,12 +378,12 @@ CONFIG_BLK_DEV_IDESCSI=m
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
@ -438,7 +412,6 @@ CONFIG_BLK_DEV_PIIX=y
# CONFIG_IDE_ARM is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_BLK_DEV_HD is not set
#
@ -446,6 +419,7 @@ CONFIG_IDEDMA_AUTO=y
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y
@ -468,6 +442,7 @@ CONFIG_CHR_DEV_SG=m
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m
#
# SCSI Transports
@ -514,15 +489,7 @@ CONFIG_SCSI_QLOGIC_1280=y
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
#
# Serial ATA (prod) and Parallel ATA (experimental) drivers
#
# CONFIG_ATA is not set
#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
@ -539,6 +506,7 @@ CONFIG_DM_SNAPSHOT=m
CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
#
# Fusion MPT device support
@ -553,46 +521,25 @@ CONFIG_FUSION_CTL=y
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_MACVLAN 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)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
#
# Tulip family network device support
#
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=m
@ -623,10 +570,7 @@ CONFIG_E100=m
# CONFIG_SUNDANCE is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
#
# Ethernet (1000 Mbit)
#
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
CONFIG_E1000=y
@ -639,36 +583,36 @@ CONFIG_E1000=y
# CONFIG_SIS190 is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=y
# CONFIG_BNX2 is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
#
# Ethernet (10000 Mbit)
#
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
# CONFIG_MYRI10GE is not set
# CONFIG_NETXEN_NIC is not set
#
# Token Ring devices
#
# CONFIG_MLX4_CORE is not set
# CONFIG_TR is not set
#
# Wireless LAN (non-hamradio)
# Wireless LAN
#
# CONFIG_NET_RADIO is not set
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
#
# Wan interfaces
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET_MII is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
@ -678,18 +622,9 @@ CONFIG_TIGON3=y
# 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
#
# CONFIG_ISDN is not set
#
# Telephony Support
#
# CONFIG_PHONE is not set
#
@ -697,6 +632,7 @@ CONFIG_NET_POLL_CONTROLLER=y
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
#
# Userland interfaces
@ -722,9 +658,17 @@ CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
@ -790,19 +734,10 @@ CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_HW_RANDOM is not set
CONFIG_EFI_RTC=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
CONFIG_AGP=m
@ -821,15 +756,8 @@ CONFIG_HPET=y
# CONFIG_HPET_RTC_IRQ is not set
CONFIG_HPET_MMAP=y
# CONFIG_HANGCHECK_TIMER is not set
#
# TPM devices
#
# CONFIG_TCG_TPM is not set
#
# I2C support
#
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
#
@ -837,21 +765,17 @@ CONFIG_HPET_MMAP=y
#
# CONFIG_SPI is not set
# CONFIG_SPI_MASTER is not set
#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set
#
# Hardware Monitoring support
#
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
@ -863,17 +787,20 @@ CONFIG_HWMON=y
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
# CONFIG_DVB_CORE is not set
CONFIG_DAB=y
# CONFIG_USB_DABUSB is not set
#
# Graphics support
#
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
# CONFIG_VGASTATE is not set
# CONFIG_FB is not set
#
@ -887,16 +814,18 @@ CONFIG_DUMMY_CONSOLE=y
# Sound
#
# CONFIG_SOUND is not set
#
# HID Devices
#
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
#
# USB support
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
@ -907,8 +836,10 @@ CONFIG_USB=y
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_SUSPEND is not set
# CONFIG_USB_PERSIST is not set
# CONFIG_USB_OTG is not set
#
@ -918,7 +849,6 @@ CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set
# CONFIG_USB_ISP116X_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
@ -926,6 +856,7 @@ CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
#
# USB Device Class drivers
@ -954,42 +885,11 @@ CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_LIBUSUAL is not set
#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV 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_TOUCHSCREEN is not set
# CONFIG_USB_YEALINK is not set
# CONFIG_USB_XPAD is not set
# CONFIG_USB_ATI_REMOTE is not set
# CONFIG_USB_ATI_REMOTE2 is not set
# CONFIG_USB_KEYSPAN_REMOTE is not set
# CONFIG_USB_APPLETOUCH is not set
# CONFIG_USB_GTCO is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET_MII is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_MON is not set
#
@ -1033,10 +933,6 @@ CONFIG_USB_HID=y
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# MMC/SD Card support
#
# CONFIG_MMC is not set
#
@ -1051,16 +947,8 @@ CONFIG_USB_HID=y
#
# LED Triggers
#
#
# InfiniBand support
#
# CONFIG_INFINIBAND is not set
#
# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
#
#
# Real Time Clock
#
@ -1080,12 +968,9 @@ CONFIG_USB_HID=y
#
#
# Auxiliary Display support
#
#
# Virtualization
# Userspace I/O
#
# CONFIG_UIO is not set
# CONFIG_MSPEC is not set
#
@ -1200,7 +1085,8 @@ CONFIG_EXPORTFS=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_BIND34 is not set
CONFIG_RPCSEC_GSS_KRB5=y
# CONFIG_RPCSEC_GSS_SPKM3 is not set
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
@ -1214,7 +1100,6 @@ 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
@ -1236,6 +1121,7 @@ CONFIG_SGI_PARTITION=y
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
#
# Native Language Support
@ -1292,11 +1178,14 @@ CONFIG_NLS_UTF8=m
CONFIG_BITREVERSE=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y
@ -1319,8 +1208,8 @@ CONFIG_MAGIC_SYSRQ=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_SLAB is not set
@ -1343,17 +1232,12 @@ CONFIG_IA64_GRANULE_16MB=y
# CONFIG_DISABLE_VHPT is not set
# CONFIG_IA64_DEBUG_CMPXCHG is not set
# CONFIG_IA64_DEBUG_IRQ is not set
CONFIG_SYSVIPC_COMPAT=y
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=m
@ -1373,6 +1257,7 @@ CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_PCBC=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_BLOWFISH is not set
@ -1390,7 +1275,4 @@ CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_TEST is not set
#
# Hardware crypto devices
#
CONFIG_CRYPTO_HW=y

2
arch/ia64/configs/zx1_defconfig
View file

@ -96,7 +96,7 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_INTERPOLATION=y
CONFIG_GENERIC_TIME=y
CONFIG_DMI=y
CONFIG_EFI=y
CONFIG_GENERIC_IOMAP=y

340
arch/ia64/defconfig
View file

@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.21-rc3
# Thu Mar 8 11:01:03 2007
# Linux kernel version: 2.6.22
# Thu Jul 19 13:55:32 2007
#
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
@ -19,15 +19,15 @@ CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_IPC_NS is not set
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_UTS_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=20
# CONFIG_CPUSETS is not set
CONFIG_SYSFS_DEPRECATED=y
# CONFIG_RELAY is not set
@ -46,18 +46,19 @@ CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_SLAB=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
# CONFIG_SLOB is not set
#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
@ -65,12 +66,9 @@ CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
#
# Block layer
#
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_BLK_DEV_BSG is not set
#
# IO Schedulers
@ -91,6 +89,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
CONFIG_IA64=y
CONFIG_64BIT=y
CONFIG_ZONE_DMA=y
CONFIG_QUICKLIST=y
CONFIG_MMU=y
CONFIG_SWIOTLB=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
@ -98,7 +97,7 @@ CONFIG_RWSEM_XCHGADD_ALGORITHM=y
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_TIME_INTERPOLATION=y
CONFIG_GENERIC_TIME=y
CONFIG_DMI=y
CONFIG_EFI=y
CONFIG_GENERIC_IOMAP=y
@ -114,8 +113,8 @@ CONFIG_IA64_GENERIC=y
CONFIG_MCKINLEY=y
# CONFIG_IA64_PAGE_SIZE_4KB is not set
# CONFIG_IA64_PAGE_SIZE_8KB is not set
CONFIG_IA64_PAGE_SIZE_16KB=y
# CONFIG_IA64_PAGE_SIZE_64KB is not set
# CONFIG_IA64_PAGE_SIZE_16KB is not set
CONFIG_IA64_PAGE_SIZE_64KB=y
CONFIG_PGTABLE_3=y
# CONFIG_PGTABLE_4 is not set
# CONFIG_HZ_100 is not set
@ -147,6 +146,9 @@ CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MIGRATION=y
CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_NR_QUICK=1
CONFIG_VIRT_TO_BUS=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_FLATMEM_ENABLE=y
@ -164,7 +166,7 @@ CONFIG_COMPAT=y
CONFIG_IA64_MCA_RECOVERY=y
CONFIG_PERFMON=y
CONFIG_IA64_PALINFO=y
# CONFIG_MC_ERR_INJECT is not set
# CONFIG_IA64_MC_ERR_INJECT is not set
CONFIG_SGI_SN=y
# CONFIG_IA64_ESI is not set
@ -180,6 +182,7 @@ CONFIG_CRASH_DUMP=y
#
CONFIG_EFI_VARS=y
CONFIG_EFI_PCDP=y
CONFIG_DMIID=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=m
@ -189,7 +192,6 @@ CONFIG_BINFMT_MISC=m
CONFIG_PM=y
CONFIG_PM_LEGACY=y
# CONFIG_PM_DEBUG is not set
# CONFIG_PM_SYSFS_DEPRECATED is not set
#
# ACPI (Advanced Configuration and Power Interface) Support
@ -220,13 +222,11 @@ CONFIG_ACPI_CONTAINER=m
#
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_SYSCALL=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_ARCH_SUPPORTS_MSI=y
# CONFIG_PCI_MSI is not set
# CONFIG_PCI_DEBUG is not set
#
# PCI Hotplug Support
#
CONFIG_HOTPLUG_PCI=m
# CONFIG_HOTPLUG_PCI_FAKE is not set
CONFIG_HOTPLUG_PCI_ACPI=m
@ -248,7 +248,6 @@ CONFIG_NET=y
#
# Networking options
#
# CONFIG_NETDEBUG is not set
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
@ -286,20 +285,8 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_INET6_TUNNEL is not set
# CONFIG_NETWORK_SECMARK 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
#
# TIPC Configuration (EXPERIMENTAL)
#
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
@ -325,7 +312,17 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
#
# Wireless
#
# CONFIG_CFG80211 is not set
# CONFIG_WIRELESS_EXT is not set
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
#
# Device Drivers
@ -340,25 +337,9 @@ CONFIG_FW_LOADER=m
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
#
# Connector - unified userspace <-> kernelspace linker
#
# CONFIG_CONNECTOR is not set
#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play support
#
CONFIG_PNP=y
# CONFIG_PNP_DEBUG is not set
@ -366,10 +347,7 @@ CONFIG_PNP=y
# Protocols
#
CONFIG_PNPACPI=y
#
# Block devices
#
CONFIG_BLK_DEV=y
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
@ -386,16 +364,11 @@ CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
#
# Misc devices
#
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
CONFIG_SGI_IOC4=y
# CONFIG_TIFM_CORE is not set
#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_IDE_MAX_HWIFS=4
CONFIG_BLK_DEV_IDE=y
@ -412,6 +385,7 @@ CONFIG_BLK_DEV_IDEFLOPPY=y
CONFIG_BLK_DEV_IDESCSI=m
# CONFIG_BLK_DEV_IDEACPI is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y
#
# IDE chipset support/bugfixes
@ -420,12 +394,12 @@ CONFIG_BLK_DEV_IDESCSI=m
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
# CONFIG_IDEDMA_ONLYDISK is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
@ -455,7 +429,6 @@ CONFIG_BLK_DEV_SGIIOC4=y
# CONFIG_IDE_ARM is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_BLK_DEV_HD is not set
#
@ -463,6 +436,7 @@ CONFIG_IDEDMA_AUTO=y
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y
@ -485,6 +459,7 @@ CONFIG_CHR_DEV_SG=m
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m
#
# SCSI Transports
@ -492,7 +467,7 @@ 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
CONFIG_SCSI_SAS_ATTRS=y
# CONFIG_SCSI_SAS_LIBSAS is not set
#
@ -531,15 +506,7 @@ CONFIG_SCSI_QLOGIC_1280=y
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_SRP is not set
#
# Serial ATA (prod) and Parallel ATA (experimental) drivers
#
# CONFIG_ATA is not set
#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
@ -557,6 +524,8 @@ CONFIG_DM_MIRROR=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
# CONFIG_DM_MULTIPATH_EMC is not set
# CONFIG_DM_MULTIPATH_RDAC is not set
# CONFIG_DM_DELAY is not set
#
# Fusion MPT device support
@ -564,53 +533,32 @@ CONFIG_DM_MULTIPATH=m
CONFIG_FUSION=y
CONFIG_FUSION_SPI=y
CONFIG_FUSION_FC=m
# CONFIG_FUSION_SAS is not set
CONFIG_FUSION_SAS=y
CONFIG_FUSION_MAX_SGE=128
# CONFIG_FUSION_CTL is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
# CONFIG_MACVLAN 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)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
#
# Tulip family network device support
#
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=m
@ -641,10 +589,7 @@ CONFIG_E100=m
# CONFIG_SUNDANCE is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
#
# Ethernet (1000 Mbit)
#
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
CONFIG_E1000=y
@ -657,36 +602,36 @@ CONFIG_E1000=y
# CONFIG_SIS190 is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=y
# CONFIG_BNX2 is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
#
# Ethernet (10000 Mbit)
#
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
# CONFIG_MYRI10GE is not set
# CONFIG_NETXEN_NIC is not set
#
# Token Ring devices
#
# CONFIG_MLX4_CORE is not set
# CONFIG_TR is not set
#
# Wireless LAN (non-hamradio)
# Wireless LAN
#
# CONFIG_NET_RADIO is not set
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 is not set
#
# Wan interfaces
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET_MII is not set
# CONFIG_USB_USBNET is not set
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
@ -696,18 +641,9 @@ CONFIG_TIGON3=y
# 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
#
# CONFIG_ISDN is not set
#
# Telephony Support
#
# CONFIG_PHONE is not set
#
@ -715,6 +651,7 @@ CONFIG_NET_POLL_CONTROLLER=y
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
#
# Userland interfaces
@ -740,9 +677,17 @@ CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_STOWAWAY is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
@ -814,19 +759,10 @@ CONFIG_SERIAL_SGI_IOC4=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_HW_RANDOM is not set
CONFIG_EFI_RTC=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
CONFIG_AGP=m
@ -848,15 +784,8 @@ CONFIG_HPET=y
CONFIG_HPET_MMAP=y
# CONFIG_HANGCHECK_TIMER is not set
CONFIG_MMTIMER=y
#
# TPM devices
#
# CONFIG_TCG_TPM is not set
#
# I2C support
#
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
#
@ -864,21 +793,17 @@ CONFIG_MMTIMER=y
#
# CONFIG_SPI is not set
# CONFIG_SPI_MASTER is not set
#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set
#
# Hardware Monitoring support
#
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
@ -890,17 +815,20 @@ CONFIG_HWMON=y
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
# CONFIG_DVB_CORE is not set
CONFIG_DAB=y
# CONFIG_USB_DABUSB is not set
#
# Graphics support
#
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
# CONFIG_VGASTATE is not set
# CONFIG_FB is not set
#
@ -1014,9 +942,10 @@ CONFIG_SND_FM801=m
# USB devices
#
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set
#
# SoC audio support
# System on Chip audio support
#
# CONFIG_SND_SOC is not set
@ -1025,16 +954,24 @@ CONFIG_SND_FM801=m
#
# CONFIG_SOUND_PRIME is not set
CONFIG_AC97_BUS=m
#
# HID Devices
#
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HID_DEBUG is not set
#
# USB support
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set
#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
@ -1045,8 +982,10 @@ CONFIG_USB=m
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_SUSPEND is not set
# CONFIG_USB_PERSIST is not set
# CONFIG_USB_OTG is not set
#
@ -1056,7 +995,6 @@ CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set
# CONFIG_USB_ISP116X_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
@ -1064,6 +1002,7 @@ CONFIG_USB_OHCI_HCD=m
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
#
# USB Device Class drivers
@ -1092,48 +1031,11 @@ CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_LIBUSUAL is not set
#
# USB Input Devices
#
CONFIG_USB_HID=m
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set
#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
# 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_TOUCHSCREEN is not set
# CONFIG_USB_YEALINK is not set
# CONFIG_USB_XPAD is not set
# CONFIG_USB_ATI_REMOTE is not set
# CONFIG_USB_ATI_REMOTE2 is not set
# CONFIG_USB_KEYSPAN_REMOTE is not set
# CONFIG_USB_APPLETOUCH is not set
# CONFIG_USB_GTCO is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET_MII is not set
# CONFIG_USB_USBNET is not set
CONFIG_USB_MON=y
#
@ -1177,10 +1079,6 @@ CONFIG_USB_MON=y
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# MMC/SD Card support
#
# CONFIG_MMC is not set
#
@ -1195,10 +1093,6 @@ CONFIG_USB_MON=y
#
# LED Triggers
#
#
# InfiniBand support
#
CONFIG_INFINIBAND=m
# CONFIG_INFINIBAND_USER_MAD is not set
# CONFIG_INFINIBAND_USER_ACCESS is not set
@ -1206,6 +1100,7 @@ CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_MTHCA_DEBUG=y
# CONFIG_INFINIBAND_AMSO1100 is not set
# CONFIG_MLX4_INFINIBAND is not set
CONFIG_INFINIBAND_IPOIB=m
# CONFIG_INFINIBAND_IPOIB_CM is not set
CONFIG_INFINIBAND_IPOIB_DEBUG=y
@ -1213,10 +1108,6 @@ CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_SRP is not set
# CONFIG_INFINIBAND_ISER is not set
#
# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
#
#
# Real Time Clock
#
@ -1236,12 +1127,9 @@ CONFIG_INFINIBAND_IPOIB_DEBUG=y
#
#
# Auxiliary Display support
#
#
# Virtualization
# Userspace I/O
#
# CONFIG_UIO is not set
# CONFIG_MSPEC is not set
#
@ -1357,7 +1245,8 @@ CONFIG_EXPORTFS=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_BIND34 is not set
CONFIG_RPCSEC_GSS_KRB5=y
# CONFIG_RPCSEC_GSS_SPKM3 is not set
CONFIG_SMB_FS=m
CONFIG_SMB_NLS_DEFAULT=y
@ -1371,7 +1260,6 @@ 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
@ -1393,6 +1281,7 @@ CONFIG_SGI_PARTITION=y
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
#
# Native Language Support
@ -1449,11 +1338,14 @@ CONFIG_NLS_UTF8=m
CONFIG_BITREVERSE=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y
@ -1483,8 +1375,8 @@ CONFIG_MAGIC_SYSRQ=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_SLAB is not set
@ -1514,10 +1406,6 @@ CONFIG_SYSVIPC_COMPAT=y
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=m
@ -1537,6 +1425,7 @@ CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_CBC=m
CONFIG_CRYPTO_PCBC=m
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_BLOWFISH is not set
@ -1554,7 +1443,4 @@ CONFIG_CRYPTO_DES=m
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_TEST is not set
#
# Hardware crypto devices
#
CONFIG_CRYPTO_HW=y

35
arch/ia64/kernel/asm-offsets.c
View file

@ -7,6 +7,7 @@
#define ASM_OFFSETS_C 1
#include <linux/sched.h>
#include <linux/clocksource.h>
#include <asm-ia64/processor.h>
#include <asm-ia64/ptrace.h>
@ -15,6 +16,7 @@
#include <asm-ia64/mca.h>
#include "../kernel/sigframe.h"
#include "../kernel/fsyscall_gtod_data.h"
#define DEFINE(sym, val) \
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@ -256,17 +258,24 @@ void foo(void)
BLANK();
/* used by fsys_gettimeofday in arch/ia64/kernel/fsys.S */
DEFINE(IA64_TIME_INTERPOLATOR_ADDRESS_OFFSET, offsetof (struct time_interpolator, addr));
DEFINE(IA64_TIME_INTERPOLATOR_SOURCE_OFFSET, offsetof (struct time_interpolator, source));
DEFINE(IA64_TIME_INTERPOLATOR_SHIFT_OFFSET, offsetof (struct time_interpolator, shift));
DEFINE(IA64_TIME_INTERPOLATOR_NSEC_OFFSET, offsetof (struct time_interpolator, nsec_per_cyc));
DEFINE(IA64_TIME_INTERPOLATOR_OFFSET_OFFSET, offsetof (struct time_interpolator, offset));
DEFINE(IA64_TIME_INTERPOLATOR_LAST_CYCLE_OFFSET, offsetof (struct time_interpolator, last_cycle));
DEFINE(IA64_TIME_INTERPOLATOR_LAST_COUNTER_OFFSET, offsetof (struct time_interpolator, last_counter));
DEFINE(IA64_TIME_INTERPOLATOR_JITTER_OFFSET, offsetof (struct time_interpolator, jitter));
DEFINE(IA64_TIME_INTERPOLATOR_MASK_OFFSET, offsetof (struct time_interpolator, mask));
DEFINE(IA64_TIME_SOURCE_CPU, TIME_SOURCE_CPU);
DEFINE(IA64_TIME_SOURCE_MMIO64, TIME_SOURCE_MMIO64);
DEFINE(IA64_TIME_SOURCE_MMIO32, TIME_SOURCE_MMIO32);
DEFINE(IA64_TIMESPEC_TV_NSEC_OFFSET, offsetof (struct timespec, tv_nsec));
DEFINE(IA64_GTOD_LOCK_OFFSET,
offsetof (struct fsyscall_gtod_data_t, lock));
DEFINE(IA64_GTOD_WALL_TIME_OFFSET,
offsetof (struct fsyscall_gtod_data_t, wall_time));
DEFINE(IA64_GTOD_MONO_TIME_OFFSET,
offsetof (struct fsyscall_gtod_data_t, monotonic_time));
DEFINE(IA64_CLKSRC_MASK_OFFSET,
offsetof (struct fsyscall_gtod_data_t, clk_mask));
DEFINE(IA64_CLKSRC_MULT_OFFSET,
offsetof (struct fsyscall_gtod_data_t, clk_mult));
DEFINE(IA64_CLKSRC_SHIFT_OFFSET,
offsetof (struct fsyscall_gtod_data_t, clk_shift));
DEFINE(IA64_CLKSRC_MMIO_OFFSET,
offsetof (struct fsyscall_gtod_data_t, clk_fsys_mmio));
DEFINE(IA64_CLKSRC_CYCLE_LAST_OFFSET,
offsetof (struct fsyscall_gtod_data_t, clk_cycle_last));
DEFINE(IA64_ITC_JITTER_OFFSET,
offsetof (struct itc_jitter_data_t, itc_jitter));
DEFINE(IA64_ITC_LASTCYCLE_OFFSET,
offsetof (struct itc_jitter_data_t, itc_lastcycle));
}

44
arch/ia64/kernel/cyclone.c
View file

@ -3,6 +3,7 @@
#include <linux/time.h>
#include <linux/errno.h>
#include <linux/timex.h>
#include <linux/clocksource.h>
#include <asm/io.h>
/* IBM Summit (EXA) Cyclone counter code*/
@ -18,13 +19,21 @@ void __init cyclone_setup(void)
use_cyclone = 1;
}
static void __iomem *cyclone_mc;
struct time_interpolator cyclone_interpolator = {
.source = TIME_SOURCE_MMIO64,
static cycle_t read_cyclone(void)
{
return (cycle_t)readq((void __iomem *)cyclone_mc);
}
static struct clocksource clocksource_cyclone = {
.name = "cyclone",
.rating = 300,
.read = read_cyclone,
.mask = (1LL << 40) - 1,
.mult = 0, /*to be caluclated*/
.shift = 16,
.frequency = CYCLONE_TIMER_FREQ,
.drift = -100,
.mask = (1LL << 40) - 1
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
int __init init_cyclone_clock(void)
@ -44,13 +53,15 @@ int __init init_cyclone_clock(void)
offset = (CYCLONE_CBAR_ADDR);
reg = (u64*)ioremap_nocache(offset, sizeof(u64));
if(!reg){
printk(KERN_ERR "Summit chipset: Could not find valid CBAR register.\n");
printk(KERN_ERR "Summit chipset: Could not find valid CBAR"
" register.\n");
use_cyclone = 0;
return -ENODEV;
}
base = readq(reg);
if(!base){
printk(KERN_ERR "Summit chipset: Could not find valid CBAR value.\n");
printk(KERN_ERR "Summit chipset: Could not find valid CBAR"
" value.\n");
use_cyclone = 0;
return -ENODEV;
}
@ -60,7 +71,8 @@ int __init init_cyclone_clock(void)
offset = (base + CYCLONE_PMCC_OFFSET);
reg = (u64*)ioremap_nocache(offset, sizeof(u64));
if(!reg){
printk(KERN_ERR "Summit chipset: Could not find valid PMCC register.\n");
printk(KERN_ERR "Summit chipset: Could not find valid PMCC"
" register.\n");
use_cyclone = 0;
return -ENODEV;
}
@ -71,7 +83,8 @@ int __init init_cyclone_clock(void)
offset = (base + CYCLONE_MPCS_OFFSET);
reg = (u64*)ioremap_nocache(offset, sizeof(u64));
if(!reg){
printk(KERN_ERR "Summit chipset: Could not find valid MPCS register.\n");
printk(KERN_ERR "Summit chipset: Could not find valid MPCS"
" register.\n");
use_cyclone = 0;
return -ENODEV;
}
@ -82,7 +95,8 @@ int __init init_cyclone_clock(void)
offset = (base + CYCLONE_MPMC_OFFSET);
cyclone_timer = (u32*)ioremap_nocache(offset, sizeof(u32));
if(!cyclone_timer){
printk(KERN_ERR "Summit chipset: Could not find valid MPMC register.\n");
printk(KERN_ERR "Summit chipset: Could not find valid MPMC"
" register.\n");
use_cyclone = 0;
return -ENODEV;
}
@ -93,7 +107,8 @@ int __init init_cyclone_clock(void)
int stall = 100;
while(stall--) barrier();
if(readl(cyclone_timer) == old){
printk(KERN_ERR "Summit chipset: Counter not counting! DISABLED\n");
printk(KERN_ERR "Summit chipset: Counter not counting!"
" DISABLED\n");
iounmap(cyclone_timer);
cyclone_timer = 0;
use_cyclone = 0;
@ -101,8 +116,11 @@ int __init init_cyclone_clock(void)
}
}
/* initialize last tick */
cyclone_interpolator.addr = cyclone_timer;
register_time_interpolator(&cyclone_interpolator);
cyclone_mc = cyclone_timer;
clocksource_cyclone.fsys_mmio = cyclone_timer;
clocksource_cyclone.mult = clocksource_hz2mult(CYCLONE_TIMER_FREQ,
clocksource_cyclone.shift);
clocksource_register(&clocksource_cyclone);
return 0;
}

2
arch/ia64/kernel/entry.S
View file

@ -1581,7 +1581,7 @@ sys_call_table:
data8 sys_sync_file_range // 1300
data8 sys_tee
data8 sys_vmsplice
data8 sys_ni_syscall // reserved for move_pages
data8 sys_fallocate
data8 sys_getcpu
data8 sys_epoll_pwait // 1305
data8 sys_utimensat

167
arch/ia64/kernel/fsys.S
View file

@ -147,12 +147,11 @@ ENTRY(fsys_set_tid_address)
FSYS_RETURN
END(fsys_set_tid_address)
/*
* Ensure that the time interpolator structure is compatible with the asm code
*/
#if IA64_TIME_INTERPOLATOR_SOURCE_OFFSET !=0 || IA64_TIME_INTERPOLATOR_SHIFT_OFFSET != 2 \
|| IA64_TIME_INTERPOLATOR_JITTER_OFFSET != 3 || IA64_TIME_INTERPOLATOR_NSEC_OFFSET != 4
#error fsys_gettimeofday incompatible with changes to struct time_interpolator
#if IA64_GTOD_LOCK_OFFSET !=0
#error fsys_gettimeofday incompatible with changes to struct fsyscall_gtod_data_t
#endif
#if IA64_ITC_JITTER_OFFSET !=0
#error fsys_gettimeofday incompatible with changes to struct itc_jitter_data_t
#endif
#define CLOCK_REALTIME 0
#define CLOCK_MONOTONIC 1
@ -179,126 +178,124 @@ ENTRY(fsys_gettimeofday)
// r11 = preserved: saved ar.pfs
// r12 = preserved: memory stack
// r13 = preserved: thread pointer
// r14 = address of mask / mask
// r14 = address of mask / mask value
// r15 = preserved: system call number
// r16 = preserved: current task pointer
// r17 = wall to monotonic use
// r18 = time_interpolator->offset
// r19 = address of wall_to_monotonic
// r20 = pointer to struct time_interpolator / pointer to time_interpolator->address
// r21 = shift factor
// r22 = address of time interpolator->last_counter
// r23 = address of time_interpolator->last_cycle
// r24 = adress of time_interpolator->offset
// r25 = last_cycle value
// r26 = last_counter value
// r27 = pointer to xtime
// r17 = (not used)
// r18 = (not used)
// r19 = address of itc_lastcycle
// r20 = struct fsyscall_gtod_data (= address of gtod_lock.sequence)
// r21 = address of mmio_ptr
// r22 = address of wall_time or monotonic_time
// r23 = address of shift / value
// r24 = address mult factor / cycle_last value
// r25 = itc_lastcycle value
// r26 = address clocksource cycle_last
// r27 = (not used)
// r28 = sequence number at the beginning of critcal section
// r29 = address of seqlock
// r29 = address of itc_jitter
// r30 = time processing flags / memory address
// r31 = pointer to result
// Predicates
// p6,p7 short term use
// p8 = timesource ar.itc
// p9 = timesource mmio64
// p10 = timesource mmio32
// p10 = timesource mmio32 - not used
// p11 = timesource not to be handled by asm code
// p12 = memory time source ( = p9 | p10)
// p13 = do cmpxchg with time_interpolator_last_cycle
// p12 = memory time source ( = p9 | p10) - not used
// p13 = do cmpxchg with itc_lastcycle
// p14 = Divide by 1000
// p15 = Add monotonic
//
// Note that instructions are optimized for McKinley. McKinley can process two
// bundles simultaneously and therefore we continuously try to feed the CPU
// two bundles and then a stop.
tnat.nz p6,p0 = r31 // branch deferred since it does not fit into bundle structure
// Note that instructions are optimized for McKinley. McKinley can
// process two bundles simultaneously and therefore we continuously
// try to feed the CPU two bundles and then a stop.
//
// Additional note that code has changed a lot. Optimization is TBD.
// Comments begin with "?" are maybe outdated.
tnat.nz p6,p0 = r31 // ? branch deferred to fit later bundle
mov pr = r30,0xc000 // Set predicates according to function
add r2 = TI_FLAGS+IA64_TASK_SIZE,r16
movl r20 = time_interpolator
movl r20 = fsyscall_gtod_data // load fsyscall gettimeofday data address
;;
ld8 r20 = [r20] // get pointer to time_interpolator structure
movl r29 = xtime_lock
movl r29 = itc_jitter_data // itc_jitter
add r22 = IA64_GTOD_WALL_TIME_OFFSET,r20 // wall_time
ld4 r2 = [r2] // process work pending flags
movl r27 = xtime
;; // only one bundle here
ld8 r21 = [r20] // first quad with control information
and r2 = TIF_ALLWORK_MASK,r2
(p6) br.cond.spnt.few .fail_einval // deferred branch
;;
add r10 = IA64_TIME_INTERPOLATOR_ADDRESS_OFFSET,r20
extr r3 = r21,32,32 // time_interpolator->nsec_per_cyc
extr r8 = r21,0,16 // time_interpolator->source
(p15) add r22 = IA64_GTOD_MONO_TIME_OFFSET,r20 // monotonic_time
add r21 = IA64_CLKSRC_MMIO_OFFSET,r20
add r19 = IA64_ITC_LASTCYCLE_OFFSET,r29
and r2 = TIF_ALLWORK_MASK,r2
(p6) br.cond.spnt.few .fail_einval // ? deferred branch
;;
add r26 = IA64_CLKSRC_CYCLE_LAST_OFFSET,r20 // clksrc_cycle_last
cmp.ne p6, p0 = 0, r2 // Fallback if work is scheduled
(p6) br.cond.spnt.many fsys_fallback_syscall
;;
cmp.eq p8,p12 = 0,r8 // Check for cpu timer
cmp.eq p9,p0 = 1,r8 // MMIO64 ?
extr r2 = r21,24,8 // time_interpolator->jitter
cmp.eq p10,p0 = 2,r8 // MMIO32 ?
cmp.ltu p11,p0 = 2,r8 // function or other clock
(p11) br.cond.spnt.many fsys_fallback_syscall
;;
setf.sig f7 = r3 // Setup for scaling of counter
(p15) movl r19 = wall_to_monotonic
(p12) ld8 r30 = [r10]
cmp.ne p13,p0 = r2,r0 // need jitter compensation?
extr r21 = r21,16,8 // shift factor
;;
// Begin critical section
.time_redo:
.pred.rel.mutex p8,p9,p10
ld4.acq r28 = [r29] // xtime_lock.sequence. Must come first for locking purposes
ld4.acq r28 = [r20] // gtod_lock.sequence, Must take first
;;
and r28 = ~1,r28 // Make sequence even to force retry if odd
and r28 = ~1,r28 // And make sequence even to force retry if odd
;;
ld8 r30 = [r21] // clocksource->mmio_ptr
add r24 = IA64_CLKSRC_MULT_OFFSET,r20
ld4 r2 = [r29] // itc_jitter value
add r23 = IA64_CLKSRC_SHIFT_OFFSET,r20
add r14 = IA64_CLKSRC_MASK_OFFSET,r20
;;
ld4 r3 = [r24] // clocksource mult value
ld8 r14 = [r14] // clocksource mask value
cmp.eq p8,p9 = 0,r30 // use cpu timer if no mmio_ptr
;;
setf.sig f7 = r3 // Setup for mult scaling of counter
(p8) cmp.ne p13,p0 = r2,r0 // need itc_jitter compensation, set p13
ld4 r23 = [r23] // clocksource shift value
ld8 r24 = [r26] // get clksrc_cycle_last value
(p9) cmp.eq p13,p0 = 0,r30 // if mmio_ptr, clear p13 jitter control
;;
.pred.rel.mutex p8,p9
(p8) mov r2 = ar.itc // CPU_TIMER. 36 clocks latency!!!
add r22 = IA64_TIME_INTERPOLATOR_LAST_COUNTER_OFFSET,r20
(p9) ld8 r2 = [r30] // readq(ti->address). Could also have latency issues..
(p10) ld4 r2 = [r30] // readw(ti->address)
(p13) add r23 = IA64_TIME_INTERPOLATOR_LAST_CYCLE_OFFSET,r20
;; // could be removed by moving the last add upward
ld8 r26 = [r22] // time_interpolator->last_counter
(p13) ld8 r25 = [r23] // time interpolator->last_cycle
add r24 = IA64_TIME_INTERPOLATOR_OFFSET_OFFSET,r20
(p15) ld8 r17 = [r19],IA64_TIMESPEC_TV_NSEC_OFFSET
ld8 r9 = [r27],IA64_TIMESPEC_TV_NSEC_OFFSET
add r14 = IA64_TIME_INTERPOLATOR_MASK_OFFSET, r20
(p9) ld8 r2 = [r30] // MMIO_TIMER. Could also have latency issues..
(p13) ld8 r25 = [r19] // get itc_lastcycle value
;; // ? could be removed by moving the last add upward
ld8 r9 = [r22],IA64_TIMESPEC_TV_NSEC_OFFSET // tv_sec
;;
ld8 r18 = [r24] // time_interpolator->offset
ld8 r8 = [r27],-IA64_TIMESPEC_TV_NSEC_OFFSET // xtime.tv_nsec
ld8 r8 = [r22],-IA64_TIMESPEC_TV_NSEC_OFFSET // tv_nsec
(p13) sub r3 = r25,r2 // Diff needed before comparison (thanks davidm)
;;
ld8 r14 = [r14] // time_interpolator->mask
(p13) cmp.gt.unc p6,p7 = r3,r0 // check if it is less than last. p6,p7 cleared
sub r10 = r2,r26 // current_counter - last_counter
sub r10 = r2,r24 // current_cycle - last_cycle
;;
(p6) sub r10 = r25,r26 // time we got was less than last_cycle
(p6) sub r10 = r25,r24 // time we got was less than last_cycle
(p7) mov ar.ccv = r25 // more than last_cycle. Prep for cmpxchg
;;
(p7) cmpxchg8.rel r3 = [r19],r2,ar.ccv
;;
(p7) cmp.ne p7,p0 = r25,r3 // if cmpxchg not successful
;;
(p7) sub r10 = r3,r24 // then use new last_cycle instead
;;
and r10 = r10,r14 // Apply mask
;;
setf.sig f8 = r10
nop.i 123
;;
(p7) cmpxchg8.rel r3 = [r23],r2,ar.ccv
EX(.fail_efault, probe.w.fault r31, 3) // This takes 5 cycles and we have spare time
// fault check takes 5 cycles and we have spare time
EX(.fail_efault, probe.w.fault r31, 3)
xmpy.l f8 = f8,f7 // nsec_per_cyc*(counter-last_counter)
(p15) add r9 = r9,r17 // Add wall to monotonic.secs to result secs
;;
(p15) ld8 r17 = [r19],-IA64_TIMESPEC_TV_NSEC_OFFSET
(p7) cmp.ne p7,p0 = r25,r3 // if cmpxchg not successful redo
// simulate tbit.nz.or p7,p0 = r28,0
// ? simulate tbit.nz.or p7,p0 = r28,0
getf.sig r2 = f8
mf
add r8 = r8,r18 // Add time interpolator offset
;;
ld4 r10 = [r29] // xtime_lock.sequence
(p15) add r8 = r8, r17 // Add monotonic.nsecs to nsecs
shr.u r2 = r2,r21
;; // overloaded 3 bundles!
// End critical section.
ld4 r10 = [r20] // gtod_lock.sequence
shr.u r2 = r2,r23 // shift by factor
;; // ? overloaded 3 bundles!
add r8 = r8,r2 // Add xtime.nsecs
cmp4.ne.or p7,p0 = r28,r10
(p7) br.cond.dpnt.few .time_redo // sequence number changed ?
cmp4.ne p7,p0 = r28,r10
(p7) br.cond.dpnt.few .time_redo // sequence number changed, redo
// End critical section.
// Now r8=tv->tv_nsec and r9=tv->tv_sec
mov r10 = r0
movl r2 = 1000000000
@ -308,7 +305,7 @@ EX(.fail_efault, probe.w.fault r31, 3) // This takes 5 cycles and we have spare
.time_normalize:
mov r21 = r8
cmp.ge p6,p0 = r8,r2
(p14) shr.u r20 = r8, 3 // We can repeat this if necessary just wasting some time
(p14) shr.u r20 = r8, 3 // We can repeat this if necessary just wasting time
;;
(p14) setf.sig f8 = r20
(p6) sub r8 = r8,r2
@ -320,7 +317,7 @@ EX(.fail_efault, probe.w.fault r31, 3) // This takes 5 cycles and we have spare
// The compiler was able to do that with a multiply
// and a shift and we do the same
EX(.fail_efault, probe.w.fault r23, 3) // This also costs 5 cycles
(p14) xmpy.hu f8 = f8, f7 // xmpy has 5 cycles latency so use it...
(p14) xmpy.hu f8 = f8, f7 // xmpy has 5 cycles latency so use it
;;
mov r8 = r0
(p14) getf.sig r2 = f8

23
arch/ia64/kernel/fsyscall_gtod_data.h Normal file
View file

@ -0,0 +1,23 @@
/*
* (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
* Contributed by Peter Keilty <peter.keilty@hp.com>
*
* fsyscall gettimeofday data
*/
struct fsyscall_gtod_data_t {
seqlock_t lock;
struct timespec wall_time;
struct timespec monotonic_time;
cycle_t clk_mask;
u32 clk_mult;
u32 clk_shift;
void *clk_fsys_mmio;
cycle_t clk_cycle_last;
} __attribute__ ((aligned (L1_CACHE_BYTES)));
struct itc_jitter_data_t {
int itc_jitter;
cycle_t itc_lastcycle;
} __attribute__ ((aligned (L1_CACHE_BYTES)));

538
arch/ia64/kernel/iosapic.c
View file

@ -118,15 +118,25 @@ static DEFINE_SPINLOCK(iosapic_lock);
* vector.
*/
struct iosapic_rte_info {
struct list_head rte_list; /* node in list of RTEs sharing the
* same vector */
#define NO_REF_RTE 0
static struct iosapic {
char __iomem *addr; /* base address of IOSAPIC */
unsigned int gsi_base; /* first GSI assigned to this
* IOSAPIC */
unsigned int gsi_base; /* GSI base */
unsigned short num_rte; /* # of RTEs on this IOSAPIC */
int rtes_inuse; /* # of RTEs in use on this IOSAPIC */
#ifdef CONFIG_NUMA
unsigned short node; /* numa node association via pxm */
#endif
spinlock_t lock; /* lock for indirect reg access */
} iosapic_lists[NR_IOSAPICS];
struct iosapic_rte_info {
struct list_head rte_list; /* RTEs sharing the same vector */
char rte_index; /* IOSAPIC RTE index */
int refcnt; /* reference counter */
unsigned int flags; /* flags */
struct iosapic *iosapic;
} ____cacheline_aligned;
static struct iosapic_intr_info {
@ -140,24 +150,23 @@ static struct iosapic_intr_info {
unsigned char polarity: 1; /* interrupt polarity
* (see iosapic.h) */
unsigned char trigger : 1; /* trigger mode (see iosapic.h) */
} iosapic_intr_info[IA64_NUM_VECTORS];
static struct iosapic {
char __iomem *addr; /* base address of IOSAPIC */
unsigned int gsi_base; /* first GSI assigned to this
* IOSAPIC */
unsigned short num_rte; /* # of RTEs on this IOSAPIC */
int rtes_inuse; /* # of RTEs in use on this IOSAPIC */
#ifdef CONFIG_NUMA
unsigned short node; /* numa node association via pxm */
#endif
} iosapic_lists[NR_IOSAPICS];
} iosapic_intr_info[NR_IRQS];
static unsigned char pcat_compat __devinitdata; /* 8259 compatibility flag */
static int iosapic_kmalloc_ok;
static LIST_HEAD(free_rte_list);
static inline void
iosapic_write(struct iosapic *iosapic, unsigned int reg, u32 val)
{
unsigned long flags;
spin_lock_irqsave(&iosapic->lock, flags);
__iosapic_write(iosapic->addr, reg, val);
spin_unlock_irqrestore(&iosapic->lock, flags);
}
/*
* Find an IOSAPIC associated with a GSI
*/
@ -175,17 +184,18 @@ find_iosapic (unsigned int gsi)
return -1;
}
static inline int
_gsi_to_vector (unsigned int gsi)
static inline int __gsi_to_irq(unsigned int gsi)
{
int irq;
struct iosapic_intr_info *info;
struct iosapic_rte_info *rte;
for (info = iosapic_intr_info; info <
iosapic_intr_info + IA64_NUM_VECTORS; ++info)
for (irq = 0; irq < NR_IRQS; irq++) {
info = &iosapic_intr_info[irq];
list_for_each_entry(rte, &info->rtes, rte_list)
if (rte->gsi_base + rte->rte_index == gsi)
return info - iosapic_intr_info;
if (rte->iosapic->gsi_base + rte->rte_index == gsi)
return irq;
}
return -1;
}
@ -196,7 +206,10 @@ _gsi_to_vector (unsigned int gsi)
inline int
gsi_to_vector (unsigned int gsi)
{
return _gsi_to_vector(gsi);
int irq = __gsi_to_irq(gsi);
if (check_irq_used(irq) < 0)
return -1;
return irq_to_vector(irq);
}
int
@ -204,66 +217,48 @@ gsi_to_irq (unsigned int gsi)
{
unsigned long flags;
int irq;
/*
* XXX fix me: this assumes an identity mapping between IA-64 vector
* and Linux irq numbers...
*/
spin_lock_irqsave(&iosapic_lock, flags);
{
irq = _gsi_to_vector(gsi);
}
spin_unlock_irqrestore(&iosapic_lock, flags);
spin_lock_irqsave(&iosapic_lock, flags);
irq = __gsi_to_irq(gsi);
spin_unlock_irqrestore(&iosapic_lock, flags);
return irq;
}
static struct iosapic_rte_info *gsi_vector_to_rte(unsigned int gsi,
unsigned int vec)
static struct iosapic_rte_info *find_rte(unsigned int irq, unsigned int gsi)
{
struct iosapic_rte_info *rte;
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list)
if (rte->gsi_base + rte->rte_index == gsi)
list_for_each_entry(rte, &iosapic_intr_info[irq].rtes, rte_list)
if (rte->iosapic->gsi_base + rte->rte_index == gsi)
return rte;
return NULL;
}
static void
set_rte (unsigned int gsi, unsigned int vector, unsigned int dest, int mask)
set_rte (unsigned int gsi, unsigned int irq, unsigned int dest, int mask)
{
unsigned long pol, trigger, dmode;
u32 low32, high32;
char __iomem *addr;
int rte_index;
char redir;
struct iosapic_rte_info *rte;
ia64_vector vector = irq_to_vector(irq);
DBG(KERN_DEBUG"IOSAPIC: routing vector %d to 0x%x\n", vector, dest);
rte = gsi_vector_to_rte(gsi, vector);
rte = find_rte(irq, gsi);
if (!rte)
return; /* not an IOSAPIC interrupt */
rte_index = rte->rte_index;
addr = rte->addr;
pol = iosapic_intr_info[vector].polarity;
trigger = iosapic_intr_info[vector].trigger;
dmode = iosapic_intr_info[vector].dmode;
pol = iosapic_intr_info[irq].polarity;
trigger = iosapic_intr_info[irq].trigger;
dmode = iosapic_intr_info[irq].dmode;
redir = (dmode == IOSAPIC_LOWEST_PRIORITY) ? 1 : 0;
#ifdef CONFIG_SMP
{
unsigned int irq;
for (irq = 0; irq < NR_IRQS; ++irq)
if (irq_to_vector(irq) == vector) {
set_irq_affinity_info(irq,
(int)(dest & 0xffff),
redir);
break;
}
}
set_irq_affinity_info(irq, (int)(dest & 0xffff), redir);
#endif
low32 = ((pol << IOSAPIC_POLARITY_SHIFT) |
@ -275,10 +270,10 @@ set_rte (unsigned int gsi, unsigned int vector, unsigned int dest, int mask)
/* dest contains both id and eid */
high32 = (dest << IOSAPIC_DEST_SHIFT);
iosapic_write(addr, IOSAPIC_RTE_HIGH(rte_index), high32);
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
iosapic_intr_info[vector].low32 = low32;
iosapic_intr_info[vector].dest = dest;
iosapic_write(rte->iosapic, IOSAPIC_RTE_HIGH(rte_index), high32);
iosapic_write(rte->iosapic, IOSAPIC_RTE_LOW(rte_index), low32);
iosapic_intr_info[irq].low32 = low32;
iosapic_intr_info[irq].dest = dest;
}
static void
@ -294,15 +289,18 @@ kexec_disable_iosapic(void)
{
struct iosapic_intr_info *info;
struct iosapic_rte_info *rte;
u8 vec = 0;
for (info = iosapic_intr_info; info <
iosapic_intr_info + IA64_NUM_VECTORS; ++info, ++vec) {
ia64_vector vec;
int irq;
for (irq = 0; irq < NR_IRQS; irq++) {
info = &iosapic_intr_info[irq];
vec = irq_to_vector(irq);
list_for_each_entry(rte, &info->rtes,
rte_list) {
iosapic_write(rte->addr,
iosapic_write(rte->iosapic,
IOSAPIC_RTE_LOW(rte->rte_index),
IOSAPIC_MASK|vec);
iosapic_eoi(rte->addr, vec);
iosapic_eoi(rte->iosapic->addr, vec);
}
}
}
@ -311,78 +309,61 @@ kexec_disable_iosapic(void)
static void
mask_irq (unsigned int irq)
{
unsigned long flags;
char __iomem *addr;
u32 low32;
int rte_index;
ia64_vector vec = irq_to_vector(irq);
struct iosapic_rte_info *rte;
if (list_empty(&iosapic_intr_info[vec].rtes))
if (list_empty(&iosapic_intr_info[irq].rtes))
return; /* not an IOSAPIC interrupt! */
spin_lock_irqsave(&iosapic_lock, flags);
{
/* set only the mask bit */
low32 = iosapic_intr_info[vec].low32 |= IOSAPIC_MASK;
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes,
rte_list) {
addr = rte->addr;
low32 = iosapic_intr_info[irq].low32 |= IOSAPIC_MASK;
list_for_each_entry(rte, &iosapic_intr_info[irq].rtes, rte_list) {
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
iosapic_write(rte->iosapic, IOSAPIC_RTE_LOW(rte_index), low32);
}
}
spin_unlock_irqrestore(&iosapic_lock, flags);
}
static void
unmask_irq (unsigned int irq)
{
unsigned long flags;
char __iomem *addr;
u32 low32;
int rte_index;
ia64_vector vec = irq_to_vector(irq);
struct iosapic_rte_info *rte;
if (list_empty(&iosapic_intr_info[vec].rtes))
if (list_empty(&iosapic_intr_info[irq].rtes))
return; /* not an IOSAPIC interrupt! */
spin_lock_irqsave(&iosapic_lock, flags);
{
low32 = iosapic_intr_info[vec].low32 &= ~IOSAPIC_MASK;
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes,
rte_list) {
addr = rte->addr;
low32 = iosapic_intr_info[irq].low32 &= ~IOSAPIC_MASK;
list_for_each_entry(rte, &iosapic_intr_info[irq].rtes, rte_list) {
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
iosapic_write(rte->iosapic, IOSAPIC_RTE_LOW(rte_index), low32);
}
}
spin_unlock_irqrestore(&iosapic_lock, flags);
}
static void
iosapic_set_affinity (unsigned int irq, cpumask_t mask)
{
#ifdef CONFIG_SMP
unsigned long flags;
u32 high32, low32;
int dest, rte_index;
char __iomem *addr;
int redir = (irq & IA64_IRQ_REDIRECTED) ? 1 : 0;
ia64_vector vec;
struct iosapic_rte_info *rte;
struct iosapic *iosapic;
irq &= (~IA64_IRQ_REDIRECTED);
vec = irq_to_vector(irq);
cpus_and(mask, mask, cpu_online_map);
if (cpus_empty(mask))
return;
if (reassign_irq_vector(irq, first_cpu(mask)))
return;
dest = cpu_physical_id(first_cpu(mask));
if (list_empty(&iosapic_intr_info[vec].rtes))
if (list_empty(&iosapic_intr_info[irq].rtes))
return; /* not an IOSAPIC interrupt */
set_irq_affinity_info(irq, dest, redir);
@ -390,31 +371,24 @@ iosapic_set_affinity (unsigned int irq, cpumask_t mask)
/* dest contains both id and eid */
high32 = dest << IOSAPIC_DEST_SHIFT;
spin_lock_irqsave(&iosapic_lock, flags);
{
low32 = iosapic_intr_info[vec].low32 &
~(7 << IOSAPIC_DELIVERY_SHIFT);
low32 = iosapic_intr_info[irq].low32 & ~(7 << IOSAPIC_DELIVERY_SHIFT);
if (redir)
/* change delivery mode to lowest priority */
low32 |= (IOSAPIC_LOWEST_PRIORITY <<
IOSAPIC_DELIVERY_SHIFT);
low32 |= (IOSAPIC_LOWEST_PRIORITY << IOSAPIC_DELIVERY_SHIFT);
else
/* change delivery mode to fixed */
low32 |= (IOSAPIC_FIXED << IOSAPIC_DELIVERY_SHIFT);
low32 &= IOSAPIC_VECTOR_MASK;
low32 |= irq_to_vector(irq);
iosapic_intr_info[vec].low32 = low32;
iosapic_intr_info[vec].dest = dest;
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes,
rte_list) {
addr = rte->addr;
iosapic_intr_info[irq].low32 = low32;
iosapic_intr_info[irq].dest = dest;
list_for_each_entry(rte, &iosapic_intr_info[irq].rtes, rte_list) {
iosapic = rte->iosapic;
rte_index = rte->rte_index;
iosapic_write(addr, IOSAPIC_RTE_HIGH(rte_index),
high32);
iosapic_write(addr, IOSAPIC_RTE_LOW(rte_index), low32);
iosapic_write(iosapic, IOSAPIC_RTE_HIGH(rte_index), high32);
iosapic_write(iosapic, IOSAPIC_RTE_LOW(rte_index), low32);
}
}
spin_unlock_irqrestore(&iosapic_lock, flags);
#endif
}
@ -434,10 +408,20 @@ iosapic_end_level_irq (unsigned int irq)
{
ia64_vector vec = irq_to_vector(irq);
struct iosapic_rte_info *rte;
int do_unmask_irq = 0;
move_native_irq(irq);
list_for_each_entry(rte, &iosapic_intr_info[vec].rtes, rte_list)
iosapic_eoi(rte->addr, vec);
if (unlikely(irq_desc[irq].status & IRQ_MOVE_PENDING)) {
do_unmask_irq = 1;
mask_irq(irq);
}
list_for_each_entry(rte, &iosapic_intr_info[irq].rtes, rte_list)
iosapic_eoi(rte->iosapic->addr, vec);
if (unlikely(do_unmask_irq)) {
move_masked_irq(irq);
unmask_irq(irq);
}
}
#define iosapic_shutdown_level_irq mask_irq
@ -519,13 +503,12 @@ iosapic_version (char __iomem *addr)
* unsigned int reserved2 : 8;
* }
*/
return iosapic_read(addr, IOSAPIC_VERSION);
return __iosapic_read(addr, IOSAPIC_VERSION);
}
static int iosapic_find_sharable_vector (unsigned long trigger,
unsigned long pol)
static int iosapic_find_sharable_irq(unsigned long trigger, unsigned long pol)
{
int i, vector = -1, min_count = -1;
int i, irq = -ENOSPC, min_count = -1;
struct iosapic_intr_info *info;
/*
@ -533,21 +516,21 @@ static int iosapic_find_sharable_vector (unsigned long trigger,
* supported yet
*/
if (trigger == IOSAPIC_EDGE)
return -1;
return -EINVAL;
for (i = IA64_FIRST_DEVICE_VECTOR; i <= IA64_LAST_DEVICE_VECTOR; i++) {
for (i = 0; i <= NR_IRQS; i++) {
info = &iosapic_intr_info[i];
if (info->trigger == trigger && info->polarity == pol &&
(info->dmode == IOSAPIC_FIXED || info->dmode ==
IOSAPIC_LOWEST_PRIORITY)) {
(info->dmode == IOSAPIC_FIXED ||
info->dmode == IOSAPIC_LOWEST_PRIORITY) &&
can_request_irq(i, IRQF_SHARED)) {
if (min_count == -1 || info->count < min_count) {
vector = i;
irq = i;
min_count = info->count;
}
}
}
return vector;
return irq;
}
/*
@ -555,25 +538,25 @@ static int iosapic_find_sharable_vector (unsigned long trigger,
* assign a new vector for the other and make the vector available
*/
static void __init
iosapic_reassign_vector (int vector)
iosapic_reassign_vector (int irq)
{
int new_vector;
int new_irq;
if (!list_empty(&iosapic_intr_info[vector].rtes)) {
new_vector = assign_irq_vector(AUTO_ASSIGN);
if (new_vector < 0)
if (!list_empty(&iosapic_intr_info[irq].rtes)) {
new_irq = create_irq();
if (new_irq < 0)
panic("%s: out of interrupt vectors!\n", __FUNCTION__);
printk(KERN_INFO "Reassigning vector %d to %d\n",
vector, new_vector);
memcpy(&iosapic_intr_info[new_vector], &iosapic_intr_info[vector],
irq_to_vector(irq), irq_to_vector(new_irq));
memcpy(&iosapic_intr_info[new_irq], &iosapic_intr_info[irq],
sizeof(struct iosapic_intr_info));
INIT_LIST_HEAD(&iosapic_intr_info[new_vector].rtes);
list_move(iosapic_intr_info[vector].rtes.next,
&iosapic_intr_info[new_vector].rtes);
memset(&iosapic_intr_info[vector], 0,
INIT_LIST_HEAD(&iosapic_intr_info[new_irq].rtes);
list_move(iosapic_intr_info[irq].rtes.next,
&iosapic_intr_info[new_irq].rtes);
memset(&iosapic_intr_info[irq], 0,
sizeof(struct iosapic_intr_info));
iosapic_intr_info[vector].low32 = IOSAPIC_MASK;
INIT_LIST_HEAD(&iosapic_intr_info[vector].rtes);
iosapic_intr_info[irq].low32 = IOSAPIC_MASK;
INIT_LIST_HEAD(&iosapic_intr_info[irq].rtes);
}
}
@ -610,29 +593,18 @@ static struct iosapic_rte_info *iosapic_alloc_rte (void)
return rte;
}
static void iosapic_free_rte (struct iosapic_rte_info *rte)
static inline int irq_is_shared (int irq)
{
if (rte->flags & RTE_PREALLOCATED)
list_add_tail(&rte->rte_list, &free_rte_list);
else
kfree(rte);
}
static inline int vector_is_shared (int vector)
{
return (iosapic_intr_info[vector].count > 1);
return (iosapic_intr_info[irq].count > 1);
}
static int
register_intr (unsigned int gsi, int vector, unsigned char delivery,
register_intr (unsigned int gsi, int irq, unsigned char delivery,
unsigned long polarity, unsigned long trigger)
{
irq_desc_t *idesc;
struct hw_interrupt_type *irq_type;
int rte_index;
int index;
unsigned long gsi_base;
void __iomem *iosapic_address;
struct iosapic_rte_info *rte;
index = find_iosapic(gsi);
@ -642,10 +614,7 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
return -ENODEV;
}
iosapic_address = iosapic_lists[index].addr;
gsi_base = iosapic_lists[index].gsi_base;
rte = gsi_vector_to_rte(gsi, vector);
rte = find_rte(irq, gsi);
if (!rte) {
rte = iosapic_alloc_rte();
if (!rte) {
@ -654,40 +623,42 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
return -ENOMEM;
}
rte_index = gsi - gsi_base;
rte->rte_index = rte_index;
rte->addr = iosapic_address;
rte->gsi_base = gsi_base;
rte->iosapic = &iosapic_lists[index];
rte->rte_index = gsi - rte->iosapic->gsi_base;
rte->refcnt++;
list_add_tail(&rte->rte_list, &iosapic_intr_info[vector].rtes);
iosapic_intr_info[vector].count++;
list_add_tail(&rte->rte_list, &iosapic_intr_info[irq].rtes);
iosapic_intr_info[irq].count++;
iosapic_lists[index].rtes_inuse++;
}
else if (vector_is_shared(vector)) {
struct iosapic_intr_info *info = &iosapic_intr_info[vector];
if (info->trigger != trigger || info->polarity != polarity) {
else if (rte->refcnt == NO_REF_RTE) {
struct iosapic_intr_info *info = &iosapic_intr_info[irq];
if (info->count > 0 &&
(info->trigger != trigger || info->polarity != polarity)){
printk (KERN_WARNING
"%s: cannot override the interrupt\n",
__FUNCTION__);
return -EINVAL;
}
rte->refcnt++;
iosapic_intr_info[irq].count++;
iosapic_lists[index].rtes_inuse++;
}
iosapic_intr_info[vector].polarity = polarity;
iosapic_intr_info[vector].dmode = delivery;
iosapic_intr_info[vector].trigger = trigger;
iosapic_intr_info[irq].polarity = polarity;
iosapic_intr_info[irq].dmode = delivery;
iosapic_intr_info[irq].trigger = trigger;
if (trigger == IOSAPIC_EDGE)
irq_type = &irq_type_iosapic_edge;
else
irq_type = &irq_type_iosapic_level;
idesc = irq_desc + vector;
idesc = irq_desc + irq;
if (idesc->chip != irq_type) {
if (idesc->chip != &no_irq_type)
printk(KERN_WARNING
"%s: changing vector %d from %s to %s\n",
__FUNCTION__, vector,
__FUNCTION__, irq_to_vector(irq),
idesc->chip->name, irq_type->name);
idesc->chip = irq_type;
}
@ -695,18 +666,19 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
}
static unsigned int
get_target_cpu (unsigned int gsi, int vector)
get_target_cpu (unsigned int gsi, int irq)
{
#ifdef CONFIG_SMP
static int cpu = -1;
extern int cpe_vector;
cpumask_t domain = irq_to_domain(irq);
/*
* In case of vector shared by multiple RTEs, all RTEs that
* share the vector need to use the same destination CPU.
*/
if (!list_empty(&iosapic_intr_info[vector].rtes))
return iosapic_intr_info[vector].dest;
if (!list_empty(&iosapic_intr_info[irq].rtes))
return iosapic_intr_info[irq].dest;
/*
* If the platform supports redirection via XTP, let it
@ -723,7 +695,7 @@ get_target_cpu (unsigned int gsi, int vector)
return cpu_physical_id(smp_processor_id());
#ifdef CONFIG_ACPI
if (cpe_vector > 0 && vector == IA64_CPEP_VECTOR)
if (cpe_vector > 0 && irq_to_vector(irq) == IA64_CPEP_VECTOR)
return get_cpei_target_cpu();
#endif
@ -738,7 +710,7 @@ get_target_cpu (unsigned int gsi, int vector)
goto skip_numa_setup;
cpu_mask = node_to_cpumask(iosapic_lists[iosapic_index].node);
cpus_and(cpu_mask, cpu_mask, domain);
for_each_cpu_mask(numa_cpu, cpu_mask) {
if (!cpu_online(numa_cpu))
cpu_clear(numa_cpu, cpu_mask);
@ -749,8 +721,8 @@ get_target_cpu (unsigned int gsi, int vector)
if (!num_cpus)
goto skip_numa_setup;
/* Use vector assignment to distribute across cpus in node */
cpu_index = vector % num_cpus;
/* Use irq assignment to distribute across cpus in node */
cpu_index = irq % num_cpus;
for (numa_cpu = first_cpu(cpu_mask) ; i < cpu_index ; i++)
numa_cpu = next_cpu(numa_cpu, cpu_mask);
@ -768,7 +740,7 @@ get_target_cpu (unsigned int gsi, int vector)
do {
if (++cpu >= NR_CPUS)
cpu = 0;
} while (!cpu_online(cpu));
} while (!cpu_online(cpu) || !cpu_isset(cpu, domain));
return cpu_physical_id(cpu);
#else /* CONFIG_SMP */
@ -785,84 +757,72 @@ int
iosapic_register_intr (unsigned int gsi,
unsigned long polarity, unsigned long trigger)
{
int vector, mask = 1, err;
int irq, mask = 1, err;
unsigned int dest;
unsigned long flags;
struct iosapic_rte_info *rte;
u32 low32;
again:
/*
* If this GSI has already been registered (i.e., it's a
* shared interrupt, or we lost a race to register it),
* don't touch the RTE.
*/
spin_lock_irqsave(&iosapic_lock, flags);
{
vector = gsi_to_vector(gsi);
if (vector > 0) {
rte = gsi_vector_to_rte(gsi, vector);
irq = __gsi_to_irq(gsi);
if (irq > 0) {
rte = find_rte(irq, gsi);
if(iosapic_intr_info[irq].count == 0) {
assign_irq_vector(irq);
dynamic_irq_init(irq);
} else if (rte->refcnt != NO_REF_RTE) {
rte->refcnt++;
spin_unlock_irqrestore(&iosapic_lock, flags);
return vector;
goto unlock_iosapic_lock;
}
}
spin_unlock_irqrestore(&iosapic_lock, flags);
} else
irq = create_irq();
/* If vector is running out, we try to find a sharable vector */
vector = assign_irq_vector(AUTO_ASSIGN);
if (vector < 0) {
vector = iosapic_find_sharable_vector(trigger, polarity);
if (vector < 0)
return -ENOSPC;
if (irq < 0) {
irq = iosapic_find_sharable_irq(trigger, polarity);
if (irq < 0)
goto unlock_iosapic_lock;
}
spin_lock_irqsave(&irq_desc[vector].lock, flags);
spin_lock(&iosapic_lock);
{
if (gsi_to_vector(gsi) > 0) {
if (list_empty(&iosapic_intr_info[vector].rtes))
free_irq_vector(vector);
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&irq_desc[vector].lock,
flags);
goto again;
}
dest = get_target_cpu(gsi, vector);
err = register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY,
spin_lock(&irq_desc[irq].lock);
dest = get_target_cpu(gsi, irq);
err = register_intr(gsi, irq, IOSAPIC_LOWEST_PRIORITY,
polarity, trigger);
if (err < 0) {
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&irq_desc[vector].lock,
flags);
return err;
irq = err;
goto unlock_all;
}
/*
* If the vector is shared and already unmasked for
* other interrupt sources, don't mask it.
* If the vector is shared and already unmasked for other
* interrupt sources, don't mask it.
*/
low32 = iosapic_intr_info[vector].low32;
if (vector_is_shared(vector) && !(low32 & IOSAPIC_MASK))
low32 = iosapic_intr_info[irq].low32;
if (irq_is_shared(irq) && !(low32 & IOSAPIC_MASK))
mask = 0;
set_rte(gsi, vector, dest, mask);
}
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&irq_desc[vector].lock, flags);
set_rte(gsi, irq, dest, mask);
printk(KERN_INFO "GSI %u (%s, %s) -> CPU %d (0x%04x) vector %d\n",
gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),
(polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
cpu_logical_id(dest), dest, vector);
return vector;
cpu_logical_id(dest), dest, irq_to_vector(irq));
unlock_all:
spin_unlock(&irq_desc[irq].lock);
unlock_iosapic_lock:
spin_unlock_irqrestore(&iosapic_lock, flags);
return irq;
}
void
iosapic_unregister_intr (unsigned int gsi)
{
unsigned long flags;
int irq, vector, index;
int irq, index;
irq_desc_t *idesc;
u32 low32;
unsigned long trigger, polarity;
@ -881,15 +841,10 @@ iosapic_unregister_intr (unsigned int gsi)
WARN_ON(1);
return;
}
vector = irq_to_vector(irq);
idesc = irq_desc + irq;
spin_lock_irqsave(&idesc->lock, flags);
spin_lock(&iosapic_lock);
{
if ((rte = gsi_vector_to_rte(gsi, vector)) == NULL) {
printk(KERN_ERR
"iosapic_unregister_intr(%u) unbalanced\n",
spin_lock_irqsave(&iosapic_lock, flags);
if ((rte = find_rte(irq, gsi)) == NULL) {
printk(KERN_ERR "iosapic_unregister_intr(%u) unbalanced\n",
gsi);
WARN_ON(1);
goto out;
@ -898,61 +853,44 @@ iosapic_unregister_intr (unsigned int gsi)
if (--rte->refcnt > 0)
goto out;
/* Mask the interrupt */
low32 = iosapic_intr_info[vector].low32 | IOSAPIC_MASK;
iosapic_write(rte->addr, IOSAPIC_RTE_LOW(rte->rte_index),
low32);
idesc = irq_desc + irq;
rte->refcnt = NO_REF_RTE;
/* Remove the rte entry from the list */
list_del(&rte->rte_list);
iosapic_intr_info[vector].count--;
iosapic_free_rte(rte);
/* Mask the interrupt */
low32 = iosapic_intr_info[irq].low32 | IOSAPIC_MASK;
iosapic_write(rte->iosapic, IOSAPIC_RTE_LOW(rte->rte_index), low32);
iosapic_intr_info[irq].count--;
index = find_iosapic(gsi);
iosapic_lists[index].rtes_inuse--;
WARN_ON(iosapic_lists[index].rtes_inuse < 0);
trigger = iosapic_intr_info[vector].trigger;
polarity = iosapic_intr_info[vector].polarity;
dest = iosapic_intr_info[vector].dest;
trigger = iosapic_intr_info[irq].trigger;
polarity = iosapic_intr_info[irq].polarity;
dest = iosapic_intr_info[irq].dest;
printk(KERN_INFO
"GSI %u (%s, %s) -> CPU %d (0x%04x)"
" vector %d unregistered\n",
"GSI %u (%s, %s) -> CPU %d (0x%04x) vector %d unregistered\n",
gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),
(polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
cpu_logical_id(dest), dest, vector);
if (list_empty(&iosapic_intr_info[vector].rtes)) {
/* Sanity check */
BUG_ON(iosapic_intr_info[vector].count);
/* Clear the interrupt controller descriptor */
idesc->chip = &no_irq_type;
cpu_logical_id(dest), dest, irq_to_vector(irq));
if (iosapic_intr_info[irq].count == 0) {
#ifdef CONFIG_SMP
/* Clear affinity */
cpus_setall(idesc->affinity);
#endif
/* Clear the interrupt information */
memset(&iosapic_intr_info[vector], 0,
sizeof(struct iosapic_intr_info));
iosapic_intr_info[vector].low32 |= IOSAPIC_MASK;
INIT_LIST_HEAD(&iosapic_intr_info[vector].rtes);
iosapic_intr_info[irq].dest = 0;
iosapic_intr_info[irq].dmode = 0;
iosapic_intr_info[irq].polarity = 0;
iosapic_intr_info[irq].trigger = 0;
iosapic_intr_info[irq].low32 |= IOSAPIC_MASK;
if (idesc->action) {
printk(KERN_ERR
"interrupt handlers still exist on"
"IRQ %u\n", irq);
WARN_ON(1);
}
/* Free the interrupt vector */
free_irq_vector(vector);
}
/* Destroy and reserve IRQ */
destroy_and_reserve_irq(irq);
}
out:
spin_unlock(&iosapic_lock);
spin_unlock_irqrestore(&idesc->lock, flags);
spin_unlock_irqrestore(&iosapic_lock, flags);
}
/*
@ -965,27 +903,30 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
{
static const char * const name[] = {"unknown", "PMI", "INIT", "CPEI"};
unsigned char delivery;
int vector, mask = 0;
int irq, vector, mask = 0;
unsigned int dest = ((id << 8) | eid) & 0xffff;
switch (int_type) {
case ACPI_INTERRUPT_PMI:
vector = iosapic_vector;
irq = vector = iosapic_vector;
bind_irq_vector(irq, vector, CPU_MASK_ALL);
/*
* since PMI vector is alloc'd by FW(ACPI) not by kernel,
* we need to make sure the vector is available
*/
iosapic_reassign_vector(vector);
iosapic_reassign_vector(irq);
delivery = IOSAPIC_PMI;
break;
case ACPI_INTERRUPT_INIT:
vector = assign_irq_vector(AUTO_ASSIGN);
if (vector < 0)
irq = create_irq();
if (irq < 0)
panic("%s: out of interrupt vectors!\n", __FUNCTION__);
vector = irq_to_vector(irq);
delivery = IOSAPIC_INIT;
break;
case ACPI_INTERRUPT_CPEI:
vector = IA64_CPE_VECTOR;
irq = vector = IA64_CPE_VECTOR;
BUG_ON(bind_irq_vector(irq, vector, CPU_MASK_ALL));
delivery = IOSAPIC_LOWEST_PRIORITY;
mask = 1;
break;
@ -995,7 +936,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
return -1;
}
register_intr(gsi, vector, delivery, polarity, trigger);
register_intr(gsi, irq, delivery, polarity, trigger);
printk(KERN_INFO
"PLATFORM int %s (0x%x): GSI %u (%s, %s) -> CPU %d (0x%04x)"
@ -1005,7 +946,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
(polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
cpu_logical_id(dest), dest, vector);
set_rte(gsi, vector, dest, mask);
set_rte(gsi, irq, dest, mask);
return vector;
}
@ -1017,30 +958,32 @@ iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
unsigned long polarity,
unsigned long trigger)
{
int vector;
int vector, irq;
unsigned int dest = cpu_physical_id(smp_processor_id());
vector = isa_irq_to_vector(isa_irq);
register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY, polarity, trigger);
irq = vector = isa_irq_to_vector(isa_irq);
BUG_ON(bind_irq_vector(irq, vector, CPU_MASK_ALL));
register_intr(gsi, irq, IOSAPIC_LOWEST_PRIORITY, polarity, trigger);
DBG("ISA: IRQ %u -> GSI %u (%s,%s) -> CPU %d (0x%04x) vector %d\n",
isa_irq, gsi, trigger == IOSAPIC_EDGE ? "edge" : "level",
polarity == IOSAPIC_POL_HIGH ? "high" : "low",
cpu_logical_id(dest), dest, vector);
set_rte(gsi, vector, dest, 1);
set_rte(gsi, irq, dest, 1);
}
void __init
iosapic_system_init (int system_pcat_compat)
{
int vector;
int irq;
for (vector = 0; vector < IA64_NUM_VECTORS; ++vector) {
iosapic_intr_info[vector].low32 = IOSAPIC_MASK;
for (irq = 0; irq < NR_IRQS; ++irq) {
iosapic_intr_info[irq].low32 = IOSAPIC_MASK;
/* mark as unused */
INIT_LIST_HEAD(&iosapic_intr_info[vector].rtes);
INIT_LIST_HEAD(&iosapic_intr_info[irq].rtes);
iosapic_intr_info[irq].count = 0;
}
pcat_compat = system_pcat_compat;
@ -1108,10 +1051,14 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
unsigned long flags;
spin_lock_irqsave(&iosapic_lock, flags);
{
index = find_iosapic(gsi_base);
if (index >= 0) {
spin_unlock_irqrestore(&iosapic_lock, flags);
return -EBUSY;
}
addr = ioremap(phys_addr, 0);
ver = iosapic_version(addr);
if ((err = iosapic_check_gsi_range(gsi_base, ver))) {
iounmap(addr);
spin_unlock_irqrestore(&iosapic_lock, flags);
@ -1119,9 +1066,9 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
}
/*
* The MAX_REDIR register holds the highest input pin
* number (starting from 0).
* We add 1 so that we can use it for number of pins (= RTEs)
* The MAX_REDIR register holds the highest input pin number
* (starting from 0). We add 1 so that we can use it for
* number of pins (= RTEs)
*/
num_rte = ((ver >> 16) & 0xff) + 1;
@ -1132,7 +1079,7 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
#ifdef CONFIG_NUMA
iosapic_lists[index].node = MAX_NUMNODES;
#endif
}
spin_lock_init(&iosapic_lists[index].lock);
spin_unlock_irqrestore(&iosapic_lock, flags);
if ((gsi_base == 0) && pcat_compat) {
@ -1157,7 +1104,6 @@ iosapic_remove (unsigned int gsi_base)
unsigned long flags;
spin_lock_irqsave(&iosapic_lock, flags);
{
index = find_iosapic(gsi_base);
if (index < 0) {
printk(KERN_WARNING "%s: No IOSAPIC for GSI base %u\n",
@ -1167,15 +1113,13 @@ iosapic_remove (unsigned int gsi_base)
if (iosapic_lists[index].rtes_inuse) {
err = -EBUSY;
printk(KERN_WARNING
"%s: IOSAPIC for GSI base %u is busy\n",
printk(KERN_WARNING "%s: IOSAPIC for GSI base %u is busy\n",
__FUNCTION__, gsi_base);
goto out;
}
iounmap(iosapic_lists[index].addr);
iosapic_free(index);
}
out:
spin_unlock_irqrestore(&iosapic_lock, flags);
return err;

2
arch/ia64/kernel/irq.c
View file

@ -35,7 +35,7 @@ void ack_bad_irq(unsigned int irq)
#ifdef CONFIG_IA64_GENERIC
unsigned int __ia64_local_vector_to_irq (ia64_vector vec)
{
return (unsigned int) vec;
return __get_cpu_var(vector_irq)[vec];
}
#endif

303
arch/ia64/kernel/irq_ia64.c
View file

@ -46,6 +46,12 @@
#define IRQ_DEBUG 0
#define IRQ_VECTOR_UNASSIGNED (0)
#define IRQ_UNUSED (0)
#define IRQ_USED (1)
#define IRQ_RSVD (2)
/* These can be overridden in platform_irq_init */
int ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR;
int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR;
@ -54,6 +60,8 @@ int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR;
void __iomem *ipi_base_addr = ((void __iomem *)
(__IA64_UNCACHED_OFFSET | IA64_IPI_DEFAULT_BASE_ADDR));
static cpumask_t vector_allocation_domain(int cpu);
/*
* Legacy IRQ to IA-64 vector translation table.
*/
@ -64,46 +72,269 @@ __u8 isa_irq_to_vector_map[16] = {
};
EXPORT_SYMBOL(isa_irq_to_vector_map);
static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_MAX_DEVICE_VECTORS)];
DEFINE_SPINLOCK(vector_lock);
struct irq_cfg irq_cfg[NR_IRQS] __read_mostly = {
[0 ... NR_IRQS - 1] = {
.vector = IRQ_VECTOR_UNASSIGNED,
.domain = CPU_MASK_NONE
}
};
DEFINE_PER_CPU(int[IA64_NUM_VECTORS], vector_irq) = {
[0 ... IA64_NUM_VECTORS - 1] = IA64_SPURIOUS_INT_VECTOR
};
static cpumask_t vector_table[IA64_MAX_DEVICE_VECTORS] = {
[0 ... IA64_MAX_DEVICE_VECTORS - 1] = CPU_MASK_NONE
};
static int irq_status[NR_IRQS] = {
[0 ... NR_IRQS -1] = IRQ_UNUSED
};
int check_irq_used(int irq)
{
if (irq_status[irq] == IRQ_USED)
return 1;
return -1;
}
static void reserve_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&vector_lock, flags);
irq_status[irq] = IRQ_RSVD;
spin_unlock_irqrestore(&vector_lock, flags);
}
static inline int find_unassigned_irq(void)
{
int irq;
for (irq = IA64_FIRST_DEVICE_VECTOR; irq < NR_IRQS; irq++)
if (irq_status[irq] == IRQ_UNUSED)
return irq;
return -ENOSPC;
}
static inline int find_unassigned_vector(cpumask_t domain)
{
cpumask_t mask;
int pos;
cpus_and(mask, domain, cpu_online_map);
if (cpus_empty(mask))
return -EINVAL;
for (pos = 0; pos < IA64_NUM_DEVICE_VECTORS; pos++) {
cpus_and(mask, domain, vector_table[pos]);
if (!cpus_empty(mask))
continue;
return IA64_FIRST_DEVICE_VECTOR + pos;
}
return -ENOSPC;
}
static int __bind_irq_vector(int irq, int vector, cpumask_t domain)
{
cpumask_t mask;
int cpu, pos;
struct irq_cfg *cfg = &irq_cfg[irq];
cpus_and(mask, domain, cpu_online_map);
if (cpus_empty(mask))
return -EINVAL;
if ((cfg->vector == vector) && cpus_equal(cfg->domain, domain))
return 0;
if (cfg->vector != IRQ_VECTOR_UNASSIGNED)
return -EBUSY;
for_each_cpu_mask(cpu, mask)
per_cpu(vector_irq, cpu)[vector] = irq;
cfg->vector = vector;
cfg->domain = domain;
irq_status[irq] = IRQ_USED;
pos = vector - IA64_FIRST_DEVICE_VECTOR;
cpus_or(vector_table[pos], vector_table[pos], domain);
return 0;
}
int bind_irq_vector(int irq, int vector, cpumask_t domain)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&vector_lock, flags);
ret = __bind_irq_vector(irq, vector, domain);
spin_unlock_irqrestore(&vector_lock, flags);
return ret;
}
static void __clear_irq_vector(int irq)
{
int vector, cpu, pos;
cpumask_t mask;
cpumask_t domain;
struct irq_cfg *cfg = &irq_cfg[irq];
BUG_ON((unsigned)irq >= NR_IRQS);
BUG_ON(cfg->vector == IRQ_VECTOR_UNASSIGNED);
vector = cfg->vector;
domain = cfg->domain;
cpus_and(mask, cfg->domain, cpu_online_map);
for_each_cpu_mask(cpu, mask)
per_cpu(vector_irq, cpu)[vector] = IA64_SPURIOUS_INT_VECTOR;
cfg->vector = IRQ_VECTOR_UNASSIGNED;
cfg->domain = CPU_MASK_NONE;
irq_status[irq] = IRQ_UNUSED;
pos = vector - IA64_FIRST_DEVICE_VECTOR;
cpus_andnot(vector_table[pos], vector_table[pos], domain);
}
static void clear_irq_vector(int irq)
{
unsigned long flags;
spin_lock_irqsave(&vector_lock, flags);
__clear_irq_vector(irq);
spin_unlock_irqrestore(&vector_lock, flags);
}
int
assign_irq_vector (int irq)
{
int pos, vector;
again:
pos = find_first_zero_bit(ia64_vector_mask, IA64_NUM_DEVICE_VECTORS);
vector = IA64_FIRST_DEVICE_VECTOR + pos;
if (vector > IA64_LAST_DEVICE_VECTOR)
return -ENOSPC;
if (test_and_set_bit(pos, ia64_vector_mask))
goto again;
unsigned long flags;
int vector, cpu;
cpumask_t domain;
vector = -ENOSPC;
spin_lock_irqsave(&vector_lock, flags);
if (irq < 0) {
goto out;
}
for_each_online_cpu(cpu) {
domain = vector_allocation_domain(cpu);
vector = find_unassigned_vector(domain);
if (vector >= 0)
break;
}
if (vector < 0)
goto out;
BUG_ON(__bind_irq_vector(irq, vector, domain));
out:
spin_unlock_irqrestore(&vector_lock, flags);
return vector;
}
void
free_irq_vector (int vector)
{
int pos;
if (vector < IA64_FIRST_DEVICE_VECTOR || vector > IA64_LAST_DEVICE_VECTOR)
if (vector < IA64_FIRST_DEVICE_VECTOR ||
vector > IA64_LAST_DEVICE_VECTOR)
return;
pos = vector - IA64_FIRST_DEVICE_VECTOR;
if (!test_and_clear_bit(pos, ia64_vector_mask))
printk(KERN_WARNING "%s: double free!\n", __FUNCTION__);
clear_irq_vector(vector);
}
int
reserve_irq_vector (int vector)
{
int pos;
if (vector < IA64_FIRST_DEVICE_VECTOR ||
vector > IA64_LAST_DEVICE_VECTOR)
return -EINVAL;
return !!bind_irq_vector(vector, vector, CPU_MASK_ALL);
}
pos = vector - IA64_FIRST_DEVICE_VECTOR;
return test_and_set_bit(pos, ia64_vector_mask);
/*
* Initialize vector_irq on a new cpu. This function must be called
* with vector_lock held.
*/
void __setup_vector_irq(int cpu)
{
int irq, vector;
/* Clear vector_irq */
for (vector = 0; vector < IA64_NUM_VECTORS; ++vector)
per_cpu(vector_irq, cpu)[vector] = IA64_SPURIOUS_INT_VECTOR;
/* Mark the inuse vectors */
for (irq = 0; irq < NR_IRQS; ++irq) {
if (!cpu_isset(cpu, irq_cfg[irq].domain))
continue;
vector = irq_to_vector(irq);
per_cpu(vector_irq, cpu)[vector] = irq;
}
}
#if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG))
static enum vector_domain_type {
VECTOR_DOMAIN_NONE,
VECTOR_DOMAIN_PERCPU
} vector_domain_type = VECTOR_DOMAIN_NONE;
static cpumask_t vector_allocation_domain(int cpu)
{
if (vector_domain_type == VECTOR_DOMAIN_PERCPU)
return cpumask_of_cpu(cpu);
return CPU_MASK_ALL;
}
static int __init parse_vector_domain(char *arg)
{
if (!arg)
return -EINVAL;
if (!strcmp(arg, "percpu")) {
vector_domain_type = VECTOR_DOMAIN_PERCPU;
no_int_routing = 1;
}
return 1;
}
early_param("vector", parse_vector_domain);
#else
static cpumask_t vector_allocation_domain(int cpu)
{
return CPU_MASK_ALL;
}
#endif
void destroy_and_reserve_irq(unsigned int irq)
{
dynamic_irq_cleanup(irq);
clear_irq_vector(irq);
reserve_irq(irq);
}
static int __reassign_irq_vector(int irq, int cpu)
{
struct irq_cfg *cfg = &irq_cfg[irq];
int vector;
cpumask_t domain;
if (cfg->vector == IRQ_VECTOR_UNASSIGNED || !cpu_online(cpu))
return -EINVAL;
if (cpu_isset(cpu, cfg->domain))
return 0;
domain = vector_allocation_domain(cpu);
vector = find_unassigned_vector(domain);
if (vector < 0)
return -ENOSPC;
__clear_irq_vector(irq);
BUG_ON(__bind_irq_vector(irq, vector, domain));
return 0;
}
int reassign_irq_vector(int irq, int cpu)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&vector_lock, flags);
ret = __reassign_irq_vector(irq, cpu);
spin_unlock_irqrestore(&vector_lock, flags);
return ret;
}
/*
@ -111,18 +342,35 @@ reserve_irq_vector (int vector)
*/
int create_irq(void)
{
int vector = assign_irq_vector(AUTO_ASSIGN);
unsigned long flags;
int irq, vector, cpu;
cpumask_t domain;
irq = vector = -ENOSPC;
spin_lock_irqsave(&vector_lock, flags);
for_each_online_cpu(cpu) {
domain = vector_allocation_domain(cpu);
vector = find_unassigned_vector(domain);
if (vector >= 0)
dynamic_irq_init(vector);
return vector;
break;
}
if (vector < 0)
goto out;
irq = find_unassigned_irq();
if (irq < 0)
goto out;
BUG_ON(__bind_irq_vector(irq, vector, domain));
out:
spin_unlock_irqrestore(&vector_lock, flags);
if (irq >= 0)
dynamic_irq_init(irq);
return irq;
}
void destroy_irq(unsigned int irq)
{
dynamic_irq_cleanup(irq);
free_irq_vector(irq);
clear_irq_vector(irq);
}
#ifdef CONFIG_SMP
@ -301,15 +549,14 @@ register_percpu_irq (ia64_vector vec, struct irqaction *action)
irq_desc_t *desc;
unsigned int irq;
for (irq = 0; irq < NR_IRQS; ++irq)
if (irq_to_vector(irq) == vec) {
irq = vec;
BUG_ON(bind_irq_vector(irq, vec, CPU_MASK_ALL));
desc = irq_desc + irq;
desc->status |= IRQ_PER_CPU;
desc->chip = &irq_type_ia64_lsapic;
if (action)
setup_irq(irq, action);
}
}
void __init
init_IRQ (void)

23
arch/ia64/kernel/msi_ia64.c
View file

@ -13,6 +13,7 @@
#define MSI_DATA_VECTOR_SHIFT 0
#define MSI_DATA_VECTOR(v) (((u8)v) << MSI_DATA_VECTOR_SHIFT)
#define MSI_DATA_VECTOR_MASK 0xffffff00
#define MSI_DATA_DELIVERY_SHIFT 8
#define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_SHIFT)
@ -50,17 +51,29 @@ static struct irq_chip ia64_msi_chip;
static void ia64_set_msi_irq_affinity(unsigned int irq, cpumask_t cpu_mask)
{
struct msi_msg msg;
u32 addr;
u32 addr, data;
int cpu = first_cpu(cpu_mask);
if (!cpu_online(cpu))
return;
if (reassign_irq_vector(irq, cpu))
return;
read_msi_msg(irq, &msg);
addr = msg.address_lo;
addr &= MSI_ADDR_DESTID_MASK;
addr |= MSI_ADDR_DESTID_CPU(cpu_physical_id(first_cpu(cpu_mask)));
addr |= MSI_ADDR_DESTID_CPU(cpu_physical_id(cpu));
msg.address_lo = addr;
data = msg.data;
data &= MSI_DATA_VECTOR_MASK;
data |= MSI_DATA_VECTOR(irq_to_vector(irq));
msg.data = data;
write_msi_msg(irq, &msg);
irq_desc[irq].affinity = cpu_mask;
irq_desc[irq].affinity = cpumask_of_cpu(cpu);
}
#endif /* CONFIG_SMP */
@ -69,13 +82,15 @@ int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
struct msi_msg msg;
unsigned long dest_phys_id;
int irq, vector;
cpumask_t mask;
irq = create_irq();
if (irq < 0)
return irq;
set_irq_msi(irq, desc);
dest_phys_id = cpu_physical_id(first_cpu(cpu_online_map));
cpus_and(mask, irq_to_domain(irq), cpu_online_map);
dest_phys_id = cpu_physical_id(first_cpu(mask));
vector = irq_to_vector(irq);
msg.address_hi = 0;

4
arch/ia64/kernel/smpboot.c
View file

@ -395,9 +395,13 @@ smp_callin (void)
fix_b0_for_bsp();
lock_ipi_calllock();
spin_lock(&vector_lock);
/* Setup the per cpu irq handling data structures */
__setup_vector_irq(cpuid);
cpu_set(cpuid, cpu_online_map);
unlock_ipi_calllock();
per_cpu(cpu_state, cpuid) = CPU_ONLINE;
spin_unlock(&vector_lock);
smp_setup_percpu_timer();

94
arch/ia64/kernel/time.c
View file

@ -19,6 +19,7 @@
#include <linux/interrupt.h>
#include <linux/efi.h>
#include <linux/timex.h>
#include <linux/clocksource.h>
#include <asm/machvec.h>
#include <asm/delay.h>
@ -28,6 +29,16 @@
#include <asm/sections.h>
#include <asm/system.h>
#include "fsyscall_gtod_data.h"
static cycle_t itc_get_cycles(void);
struct fsyscall_gtod_data_t fsyscall_gtod_data = {
.lock = SEQLOCK_UNLOCKED,
};
struct itc_jitter_data_t itc_jitter_data;
volatile int time_keeper_id = 0; /* smp_processor_id() of time-keeper */
#ifdef CONFIG_IA64_DEBUG_IRQ
@ -37,11 +48,16 @@ EXPORT_SYMBOL(last_cli_ip);
#endif
static struct time_interpolator itc_interpolator = {
static struct clocksource clocksource_itc = {
.name = "itc",
.rating = 350,
.read = itc_get_cycles,
.mask = 0xffffffffffffffff,
.mult = 0, /*to be caluclated*/
.shift = 16,
.mask = 0xffffffffffffffffLL,
.source = TIME_SOURCE_CPU
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static struct clocksource *itc_clocksource;
static irqreturn_t
timer_interrupt (int irq, void *dev_id)
@ -210,8 +226,6 @@ ia64_init_itm (void)
+ itc_freq/2)/itc_freq;
if (!(sal_platform_features & IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT)) {
itc_interpolator.frequency = local_cpu_data->itc_freq;
itc_interpolator.drift = itc_drift;
#ifdef CONFIG_SMP
/* On IA64 in an SMP configuration ITCs are never accurately synchronized.
* Jitter compensation requires a cmpxchg which may limit
@ -223,14 +237,49 @@ ia64_init_itm (void)
* even going backward) if the ITC offsets between the individual CPUs
* are too large.
*/
if (!nojitter) itc_interpolator.jitter = 1;
if (!nojitter)
itc_jitter_data.itc_jitter = 1;
#endif
register_time_interpolator(&itc_interpolator);
}
/* Setup the CPU local timer tick */
ia64_cpu_local_tick();
if (!itc_clocksource) {
/* Sort out mult/shift values: */
clocksource_itc.mult =
clocksource_hz2mult(local_cpu_data->itc_freq,
clocksource_itc.shift);
clocksource_register(&clocksource_itc);
itc_clocksource = &clocksource_itc;
}
}
static cycle_t itc_get_cycles()
{
u64 lcycle, now, ret;
if (!itc_jitter_data.itc_jitter)
return get_cycles();
lcycle = itc_jitter_data.itc_lastcycle;
now = get_cycles();
if (lcycle && time_after(lcycle, now))
return lcycle;
/*
* Keep track of the last timer value returned.
* In an SMP environment, you could lose out in contention of
* cmpxchg. If so, your cmpxchg returns new value which the
* winner of contention updated to. Use the new value instead.
*/
ret = cmpxchg(&itc_jitter_data.itc_lastcycle, lcycle, now);
if (unlikely(ret != lcycle))
return ret;
return now;
}
static struct irqaction timer_irqaction = {
.handler = timer_interrupt,
@ -307,3 +356,34 @@ ia64_setup_printk_clock(void)
if (!(sal_platform_features & IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT))
ia64_printk_clock = ia64_itc_printk_clock;
}
void update_vsyscall(struct timespec *wall, struct clocksource *c)
{
unsigned long flags;
write_seqlock_irqsave(&fsyscall_gtod_data.lock, flags);
/* copy fsyscall clock data */
fsyscall_gtod_data.clk_mask = c->mask;
fsyscall_gtod_data.clk_mult = c->mult;
fsyscall_gtod_data.clk_shift = c->shift;
fsyscall_gtod_data.clk_fsys_mmio = c->fsys_mmio;
fsyscall_gtod_data.clk_cycle_last = c->cycle_last;
/* copy kernel time structures */
fsyscall_gtod_data.wall_time.tv_sec = wall->tv_sec;
fsyscall_gtod_data.wall_time.tv_nsec = wall->tv_nsec;
fsyscall_gtod_data.monotonic_time.tv_sec = wall_to_monotonic.tv_sec
+ wall->tv_sec;
fsyscall_gtod_data.monotonic_time.tv_nsec = wall_to_monotonic.tv_nsec
+ wall->tv_nsec;
/* normalize */
while (fsyscall_gtod_data.monotonic_time.tv_nsec >= NSEC_PER_SEC) {
fsyscall_gtod_data.monotonic_time.tv_nsec -= NSEC_PER_SEC;
fsyscall_gtod_data.monotonic_time.tv_sec++;
}
write_sequnlock_irqrestore(&fsyscall_gtod_data.lock, flags);
}

27
arch/ia64/sn/kernel/sn2/timer.c
View file

@ -11,6 +11,7 @@
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/interrupt.h>
#include <linux/clocksource.h>
#include <asm/hw_irq.h>
#include <asm/system.h>
@ -22,11 +23,21 @@
extern unsigned long sn_rtc_cycles_per_second;
static struct time_interpolator sn2_interpolator = {
.drift = -1,
.shift = 10,
static void __iomem *sn2_mc;
static cycle_t read_sn2(void)
{
return (cycle_t)readq(sn2_mc);
}
static struct clocksource clocksource_sn2 = {
.name = "sn2_rtc",
.rating = 300,
.read = read_sn2,
.mask = (1LL << 55) - 1,
.source = TIME_SOURCE_MMIO64
.mult = 0,
.shift = 10,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
/*
@ -47,9 +58,11 @@ ia64_sn_udelay (unsigned long usecs)
void __init sn_timer_init(void)
{
sn2_interpolator.frequency = sn_rtc_cycles_per_second;
sn2_interpolator.addr = RTC_COUNTER_ADDR;
register_time_interpolator(&sn2_interpolator);
sn2_mc = RTC_COUNTER_ADDR;
clocksource_sn2.fsys_mmio = RTC_COUNTER_ADDR;
clocksource_sn2.mult = clocksource_hz2mult(sn_rtc_cycles_per_second,
clocksource_sn2.shift);
clocksource_register(&clocksource_sn2);
ia64_udelay = &ia64_sn_udelay;
}

4
drivers/acpi/processor_idle.c
View file

@ -475,7 +475,7 @@ static void acpi_processor_idle(void)
/* Get end time (ticks) */
t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
#ifdef CONFIG_GENERIC_TIME
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC halts in C2, so notify users */
mark_tsc_unstable("possible TSC halt in C2");
#endif
@ -517,7 +517,7 @@ static void acpi_processor_idle(void)
acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0);
}
#ifdef CONFIG_GENERIC_TIME
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC halts in C3, so notify users */
mark_tsc_unstable("TSC halts in C3");
#endif

70
drivers/char/hpet.c
View file

@ -29,6 +29,7 @@
#include <linux/bcd.h>
#include <linux/seq_file.h>
#include <linux/bitops.h>
#include <linux/clocksource.h>
#include <asm/current.h>
#include <asm/uaccess.h>
@ -51,8 +52,34 @@
#define HPET_RANGE_SIZE 1024 /* from HPET spec */
#if BITS_PER_LONG == 64
#define write_counter(V, MC) writeq(V, MC)
#define read_counter(MC) readq(MC)
#else
#define write_counter(V, MC) writel(V, MC)
#define read_counter(MC) readl(MC)
#endif
static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
static void __iomem *hpet_mctr;
static cycle_t read_hpet(void)
{
return (cycle_t)read_counter((void __iomem *)hpet_mctr);
}
static struct clocksource clocksource_hpet = {
.name = "hpet",
.rating = 250,
.read = read_hpet,
.mask = 0xffffffffffffffff,
.mult = 0, /*to be caluclated*/
.shift = 10,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static struct clocksource *hpet_clocksource;
/* A lock for concurrent access by app and isr hpet activity. */
static DEFINE_SPINLOCK(hpet_lock);
/* A lock for concurrent intermodule access to hpet and isr hpet activity. */
@ -79,7 +106,7 @@ struct hpets {
struct hpets *hp_next;
struct hpet __iomem *hp_hpet;
unsigned long hp_hpet_phys;
struct time_interpolator *hp_interpolator;
struct clocksource *hp_clocksource;
unsigned long long hp_tick_freq;
unsigned long hp_delta;
unsigned int hp_ntimer;
@ -94,13 +121,6 @@ static struct hpets *hpets;
#define HPET_PERIODIC 0x0004
#define HPET_SHARED_IRQ 0x0008
#if BITS_PER_LONG == 64
#define write_counter(V, MC) writeq(V, MC)
#define read_counter(MC) readq(MC)
#else
#define write_counter(V, MC) writel(V, MC)
#define read_counter(MC) readl(MC)
#endif
#ifndef readq
static inline unsigned long long readq(void __iomem *addr)
@ -737,27 +757,6 @@ static ctl_table dev_root[] = {
static struct ctl_table_header *sysctl_header;
static void hpet_register_interpolator(struct hpets *hpetp)
{
#ifdef CONFIG_TIME_INTERPOLATION
struct time_interpolator *ti;
ti = kzalloc(sizeof(*ti), GFP_KERNEL);
if (!ti)
return;
ti->source = TIME_SOURCE_MMIO64;
ti->shift = 10;
ti->addr = &hpetp->hp_hpet->hpet_mc;
ti->frequency = hpetp->hp_tick_freq;
ti->drift = HPET_DRIFT;
ti->mask = -1;
hpetp->hp_interpolator = ti;
register_time_interpolator(ti);
#endif
}
/*
* Adjustment for when arming the timer with
* initial conditions. That is, main counter
@ -909,7 +908,16 @@ int hpet_alloc(struct hpet_data *hdp)
}
hpetp->hp_delta = hpet_calibrate(hpetp);
hpet_register_interpolator(hpetp);
if (!hpet_clocksource) {
hpet_mctr = (void __iomem *)&hpetp->hp_hpet->hpet_mc;
CLKSRC_FSYS_MMIO_SET(clocksource_hpet.fsys_mmio, hpet_mctr);
clocksource_hpet.mult = clocksource_hz2mult(hpetp->hp_tick_freq,
clocksource_hpet.shift);
clocksource_register(&clocksource_hpet);
hpetp->hp_clocksource = &clocksource_hpet;
hpet_clocksource = &clocksource_hpet;
}
return 0;
}
@ -995,7 +1003,7 @@ static int hpet_acpi_add(struct acpi_device *device)
static int hpet_acpi_remove(struct acpi_device *device, int type)
{
/* XXX need to unregister interpolator, dealloc mem, etc */
/* XXX need to unregister clocksource, dealloc mem, etc */
return -EINVAL;
}

18
include/asm-ia64/hw_irq.h
View file

@ -90,13 +90,27 @@ enum {
extern __u8 isa_irq_to_vector_map[16];
#define isa_irq_to_vector(x) isa_irq_to_vector_map[(x)]
struct irq_cfg {
ia64_vector vector;
cpumask_t domain;
};
extern spinlock_t vector_lock;
extern struct irq_cfg irq_cfg[NR_IRQS];
#define irq_to_domain(x) irq_cfg[(x)].domain
DECLARE_PER_CPU(int[IA64_NUM_VECTORS], vector_irq);
extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt controller */
extern int bind_irq_vector(int irq, int vector, cpumask_t domain);
extern int assign_irq_vector (int irq); /* allocate a free vector */
extern void free_irq_vector (int vector);
extern int reserve_irq_vector (int vector);
extern void __setup_vector_irq(int cpu);
extern int reassign_irq_vector(int irq, int cpu);
extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect);
extern void register_percpu_irq (ia64_vector vec, struct irqaction *action);
extern int check_irq_used (int irq);
extern void destroy_and_reserve_irq (unsigned int irq);
static inline void ia64_resend_irq(unsigned int vector)
{
@ -113,7 +127,7 @@ extern irq_desc_t irq_desc[NR_IRQS];
static inline unsigned int
__ia64_local_vector_to_irq (ia64_vector vec)
{
return (unsigned int) vec;
return __get_cpu_var(vector_irq)[vec];
}
#endif
@ -131,7 +145,7 @@ __ia64_local_vector_to_irq (ia64_vector vec)
static inline ia64_vector
irq_to_vector (int irq)
{
return (ia64_vector) irq;
return irq_cfg[irq].vector;
}
/*

6
include/asm-ia64/iosapic.h
View file

@ -47,19 +47,21 @@
#define IOSAPIC_MASK_SHIFT 16
#define IOSAPIC_MASK (1<<IOSAPIC_MASK_SHIFT)
#define IOSAPIC_VECTOR_MASK 0xffffff00
#ifndef __ASSEMBLY__
#ifdef CONFIG_IOSAPIC
#define NR_IOSAPICS 256
static inline unsigned int iosapic_read(char __iomem *iosapic, unsigned int reg)
static inline unsigned int __iosapic_read(char __iomem *iosapic, unsigned int reg)
{
writel(reg, iosapic + IOSAPIC_REG_SELECT);
return readl(iosapic + IOSAPIC_WINDOW);
}
static inline void iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
static inline void __iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
{
writel(reg, iosapic + IOSAPIC_REG_SELECT);
writel(val, iosapic + IOSAPIC_WINDOW);

9
include/asm-ia64/irq.h
View file

@ -14,8 +14,13 @@
#include <linux/types.h>
#include <linux/cpumask.h>
#define NR_IRQS 256
#define NR_IRQ_VECTORS NR_IRQS
#define NR_VECTORS 256
#if (NR_VECTORS + 32 * NR_CPUS) < 1024
#define NR_IRQS (NR_VECTORS + 32 * NR_CPUS)
#else
#define NR_IRQS 1024
#endif
static __inline__ int
irq_canonicalize (int irq)

4
include/asm-ia64/rwsem.h
View file

@ -21,6 +21,10 @@
#ifndef _ASM_IA64_RWSEM_H
#define _ASM_IA64_RWSEM_H
#ifndef _LINUX_RWSEM_H
#error "Please don't include <asm/rwsem.h> directly, use <linux/rwsem.h> instead."
#endif
#include <linux/list.h>
#include <linux/spinlock.h>

2
include/asm-ia64/unistd.h
View file

@ -292,7 +292,7 @@
#define __NR_sync_file_range 1300
#define __NR_tee 1301
#define __NR_vmsplice 1302
/* 1303 reserved for move_pages */
#define __NR_fallocate 1303
#define __NR_getcpu 1304
#define __NR_epoll_pwait 1305
#define __NR_utimensat 1306

6
include/linux/clocksource.h
View file

@ -67,6 +67,12 @@ struct clocksource {
unsigned long flags;
cycle_t (*vread)(void);
void (*resume)(void);
#ifdef CONFIG_IA64
void *fsys_mmio; /* used by fsyscall asm code */
#define CLKSRC_FSYS_MMIO_SET(mmio, addr) ((mmio) = (addr))
#else
#define CLKSRC_FSYS_MMIO_SET(mmio, addr) do { } while (0)
#endif
/* timekeeping specific data, ignore */
cycle_t cycle_interval;

60
include/linux/timex.h
View file

@ -224,66 +224,6 @@ static inline int ntp_synced(void)
__x < 0 ? -(-__x >> __s) : __x >> __s; \
})
#ifdef CONFIG_TIME_INTERPOLATION
#define TIME_SOURCE_CPU 0
#define TIME_SOURCE_MMIO64 1
#define TIME_SOURCE_MMIO32 2
#define TIME_SOURCE_FUNCTION 3
/* For proper operations time_interpolator clocks must run slightly slower
* than the standard clock since the interpolator may only correct by having
* time jump forward during a tick. A slower clock is usually a side effect
* of the integer divide of the nanoseconds in a second by the frequency.
* The accuracy of the division can be increased by specifying a shift.
* However, this may cause the clock not to be slow enough.
* The interpolator will self-tune the clock by slowing down if no
* resets occur or speeding up if the time jumps per analysis cycle
* become too high.
*
* Setting jitter compensates for a fluctuating timesource by comparing
* to the last value read from the timesource to insure that an earlier value
* is not returned by a later call. The price to pay
* for the compensation is that the timer routines are not as scalable anymore.
*/
struct time_interpolator {
u16 source; /* time source flags */
u8 shift; /* increases accuracy of multiply by shifting. */
/* Note that bits may be lost if shift is set too high */
u8 jitter; /* if set compensate for fluctuations */
u32 nsec_per_cyc; /* set by register_time_interpolator() */
void *addr; /* address of counter or function */
cycles_t mask; /* mask the valid bits of the counter */
unsigned long offset; /* nsec offset at last update of interpolator */
u64 last_counter; /* counter value in units of the counter at last update */
cycles_t last_cycle; /* Last timer value if TIME_SOURCE_JITTER is set */
u64 frequency; /* frequency in counts/second */
long drift; /* drift in parts-per-million (or -1) */
unsigned long skips; /* skips forward */
unsigned long ns_skipped; /* nanoseconds skipped */
struct time_interpolator *next;
};
extern void register_time_interpolator(struct time_interpolator *);
extern void unregister_time_interpolator(struct time_interpolator *);
extern void time_interpolator_reset(void);
extern unsigned long time_interpolator_get_offset(void);
extern void time_interpolator_update(long delta_nsec);
#else /* !CONFIG_TIME_INTERPOLATION */
static inline void time_interpolator_reset(void)
{
}
static inline void time_interpolator_update(long delta_nsec)
{
}
#endif /* !CONFIG_TIME_INTERPOLATION */
#define TICK_LENGTH_SHIFT 32
#ifdef CONFIG_NO_HZ

88
kernel/time.c
View file

@ -136,7 +136,6 @@ static inline void warp_clock(void)
write_seqlock_irq(&xtime_lock);
wall_to_monotonic.tv_sec -= sys_tz.tz_minuteswest * 60;
xtime.tv_sec += sys_tz.tz_minuteswest * 60;
time_interpolator_reset();
write_sequnlock_irq(&xtime_lock);
clock_was_set();
}
@ -309,92 +308,6 @@ struct timespec timespec_trunc(struct timespec t, unsigned gran)
}
EXPORT_SYMBOL(timespec_trunc);
#ifdef CONFIG_TIME_INTERPOLATION
void getnstimeofday (struct timespec *tv)
{
unsigned long seq,sec,nsec;
do {
seq = read_seqbegin(&xtime_lock);
sec = xtime.tv_sec;
nsec = xtime.tv_nsec+time_interpolator_get_offset();
} while (unlikely(read_seqretry(&xtime_lock, seq)));
while (unlikely(nsec >= NSEC_PER_SEC)) {
nsec -= NSEC_PER_SEC;
++sec;
}
tv->tv_sec = sec;
tv->tv_nsec = nsec;
}
EXPORT_SYMBOL_GPL(getnstimeofday);
int do_settimeofday (struct timespec *tv)
{
time_t wtm_sec, sec = tv->tv_sec;
long wtm_nsec, nsec = tv->tv_nsec;
if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
return -EINVAL;
write_seqlock_irq(&xtime_lock);
{
wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
set_normalized_timespec(&xtime, sec, nsec);
set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
time_adjust = 0; /* stop active adjtime() */
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
time_interpolator_reset();
}
write_sequnlock_irq(&xtime_lock);
clock_was_set();
return 0;
}
EXPORT_SYMBOL(do_settimeofday);
void do_gettimeofday (struct timeval *tv)
{
unsigned long seq, nsec, usec, sec, offset;
do {
seq = read_seqbegin(&xtime_lock);
offset = time_interpolator_get_offset();
sec = xtime.tv_sec;
nsec = xtime.tv_nsec;
} while (unlikely(read_seqretry(&xtime_lock, seq)));
usec = (nsec + offset) / 1000;
while (unlikely(usec >= USEC_PER_SEC)) {
usec -= USEC_PER_SEC;
++sec;
}
tv->tv_sec = sec;
tv->tv_usec = usec;
/*
* Make sure xtime.tv_sec [returned by sys_time()] always
* follows the gettimeofday() result precisely. This
* condition is extremely unlikely, it can hit at most
* once per second:
*/
if (unlikely(xtime.tv_sec != tv->tv_sec)) {
unsigned long flags;
write_seqlock_irqsave(&xtime_lock, flags);
update_wall_time();
write_sequnlock_irqrestore(&xtime_lock, flags);
}
}
EXPORT_SYMBOL(do_gettimeofday);
#else /* CONFIG_TIME_INTERPOLATION */
#ifndef CONFIG_GENERIC_TIME
/*
* Simulate gettimeofday using do_gettimeofday which only allows a timeval
@ -410,7 +323,6 @@ void getnstimeofday(struct timespec *tv)
}
EXPORT_SYMBOL_GPL(getnstimeofday);
#endif
#endif /* CONFIG_TIME_INTERPOLATION */
/* Converts Gregorian date to seconds since 1970-01-01 00:00:00.
* Assumes input in normal date format, i.e. 1980-12-31 23:59:59

10
kernel/time/ntp.c
View file

@ -116,11 +116,6 @@ void second_overflow(void)
if (xtime.tv_sec % 86400 == 0) {
xtime.tv_sec--;
wall_to_monotonic.tv_sec++;
/*
* The timer interpolator will make time change
* gradually instead of an immediate jump by one second
*/
time_interpolator_update(-NSEC_PER_SEC);
time_state = TIME_OOP;
printk(KERN_NOTICE "Clock: inserting leap second "
"23:59:60 UTC\n");
@ -130,11 +125,6 @@ void second_overflow(void)
if ((xtime.tv_sec + 1) % 86400 == 0) {
xtime.tv_sec++;
wall_to_monotonic.tv_sec--;
/*
* Use of time interpolator for a gradual change of
* time
*/
time_interpolator_update(NSEC_PER_SEC);
time_state = TIME_WAIT;
printk(KERN_NOTICE "Clock: deleting leap second "
"23:59:59 UTC\n");

4
kernel/time/timekeeping.c
View file

@ -466,10 +466,6 @@ void update_wall_time(void)
second_overflow();
}
/* interpolator bits */
time_interpolator_update(clock->xtime_interval
>> clock->shift);
/* accumulate error between NTP and clock interval */
clock->error += current_tick_length();
clock->error -= clock->xtime_interval << (TICK_LENGTH_SHIFT - clock->shift);

188
kernel/timer.c
View file

@ -1349,194 +1349,6 @@ void __init init_timers(void)
open_softirq(TIMER_SOFTIRQ, run_timer_softirq, NULL);
}
#ifdef CONFIG_TIME_INTERPOLATION
struct time_interpolator *time_interpolator __read_mostly;
static struct time_interpolator *time_interpolator_list __read_mostly;
static DEFINE_SPINLOCK(time_interpolator_lock);
static inline cycles_t time_interpolator_get_cycles(unsigned int src)
{
unsigned long (*x)(void);
switch (src)
{
case TIME_SOURCE_FUNCTION:
x = time_interpolator->addr;
return x();
case TIME_SOURCE_MMIO64 :
return readq_relaxed((void __iomem *)time_interpolator->addr);
case TIME_SOURCE_MMIO32 :
return readl_relaxed((void __iomem *)time_interpolator->addr);
default: return get_cycles();
}
}
static inline u64 time_interpolator_get_counter(int writelock)
{
unsigned int src = time_interpolator->source;
if (time_interpolator->jitter)
{
cycles_t lcycle;
cycles_t now;
do {
lcycle = time_interpolator->last_cycle;
now = time_interpolator_get_cycles(src);
if (lcycle && time_after(lcycle, now))
return lcycle;
/* When holding the xtime write lock, there's no need
* to add the overhead of the cmpxchg. Readers are
* force to retry until the write lock is released.
*/
if (writelock) {
time_interpolator->last_cycle = now;
return now;
}
/* Keep track of the last timer value returned. The use of cmpxchg here
* will cause contention in an SMP environment.
*/
} while (unlikely(cmpxchg(&time_interpolator->last_cycle, lcycle, now) != lcycle));
return now;
}
else
return time_interpolator_get_cycles(src);
}
void time_interpolator_reset(void)
{
time_interpolator->offset = 0;
time_interpolator->last_counter = time_interpolator_get_counter(1);
}
#define GET_TI_NSECS(count,i) (((((count) - i->last_counter) & (i)->mask) * (i)->nsec_per_cyc) >> (i)->shift)
unsigned long time_interpolator_get_offset(void)
{
/* If we do not have a time interpolator set up then just return zero */
if (!time_interpolator)
return 0;
return time_interpolator->offset +
GET_TI_NSECS(time_interpolator_get_counter(0), time_interpolator);
}
#define INTERPOLATOR_ADJUST 65536
#define INTERPOLATOR_MAX_SKIP 10*INTERPOLATOR_ADJUST
void time_interpolator_update(long delta_nsec)
{
u64 counter;
unsigned long offset;
/* If there is no time interpolator set up then do nothing */
if (!time_interpolator)
return;
/*
* The interpolator compensates for late ticks by accumulating the late
* time in time_interpolator->offset. A tick earlier than expected will
* lead to a reset of the offset and a corresponding jump of the clock
* forward. Again this only works if the interpolator clock is running
* slightly slower than the regular clock and the tuning logic insures
* that.
*/
counter = time_interpolator_get_counter(1);
offset = time_interpolator->offset +
GET_TI_NSECS(counter, time_interpolator);
if (delta_nsec < 0 || (unsigned long) delta_nsec < offset)
time_interpolator->offset = offset - delta_nsec;
else {
time_interpolator->skips++;
time_interpolator->ns_skipped += delta_nsec - offset;
time_interpolator->offset = 0;
}
time_interpolator->last_counter = counter;
/* Tuning logic for time interpolator invoked every minute or so.
* Decrease interpolator clock speed if no skips occurred and an offset is carried.
* Increase interpolator clock speed if we skip too much time.
*/
if (jiffies % INTERPOLATOR_ADJUST == 0)
{
if (time_interpolator->skips == 0 && time_interpolator->offset > tick_nsec)
time_interpolator->nsec_per_cyc--;
if (time_interpolator->ns_skipped > INTERPOLATOR_MAX_SKIP && time_interpolator->offset == 0)
time_interpolator->nsec_per_cyc++;
time_interpolator->skips = 0;
time_interpolator->ns_skipped = 0;
}
}
static inline int
is_better_time_interpolator(struct time_interpolator *new)
{
if (!time_interpolator)
return 1;
return new->frequency > 2*time_interpolator->frequency ||
(unsigned long)new->drift < (unsigned long)time_interpolator->drift;
}
void
register_time_interpolator(struct time_interpolator *ti)
{
unsigned long flags;
/* Sanity check */
BUG_ON(ti->frequency == 0 || ti->mask == 0);
ti->nsec_per_cyc = ((u64)NSEC_PER_SEC << ti->shift) / ti->frequency;
spin_lock(&time_interpolator_lock);
write_seqlock_irqsave(&xtime_lock, flags);
if (is_better_time_interpolator(ti)) {
time_interpolator = ti;
time_interpolator_reset();
}
write_sequnlock_irqrestore(&xtime_lock, flags);
ti->next = time_interpolator_list;
time_interpolator_list = ti;
spin_unlock(&time_interpolator_lock);
}
void
unregister_time_interpolator(struct time_interpolator *ti)
{
struct time_interpolator *curr, **prev;
unsigned long flags;
spin_lock(&time_interpolator_lock);
prev = &time_interpolator_list;
for (curr = *prev; curr; curr = curr->next) {
if (curr == ti) {
*prev = curr->next;
break;
}
prev = &curr->next;
}
write_seqlock_irqsave(&xtime_lock, flags);
if (ti == time_interpolator) {
/* we lost the best time-interpolator: */
time_interpolator = NULL;
/* find the next-best interpolator */
for (curr = time_interpolator_list; curr; curr = curr->next)
if (is_better_time_interpolator(curr))
time_interpolator = curr;
time_interpolator_reset();
}
write_sequnlock_irqrestore(&xtime_lock, flags);
spin_unlock(&time_interpolator_lock);
}
#endif /* CONFIG_TIME_INTERPOLATION */
/**
* msleep - sleep safely even with waitqueue interruptions
* @msecs: Time in milliseconds to sleep for