diff options
| author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-04 02:28:34 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-04 02:28:34 +0400 |
| commit | 912b2539e1e062cec73e2e61448e507f7719bd08 (patch) | |
| tree | 233807569ee5e0ab3118dd54c0ae9164fec8343e /arch | |
| parent | 70b97a7f0b19cf1f2619deb5cc41e8b78c591aa7 (diff) | |
| parent | 39ab9c212aac48f2744f2fd7722fa639ec048eb7 (diff) | |
| download | linux-912b2539e1e062cec73e2e61448e507f7719bd08.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc: add defconfig for Freescale MPC8349E-mITX board
powerpc: Add base support for the Freescale MPC8349E-mITX eval board
Documentation: correct values in MPC8548E SEC example node
[POWERPC] Actually copy over i8259.c to arch/ppc/syslib this time
[POWERPC] Add new interrupt mapping core and change platforms to use it
[POWERPC] Copy i8259 code back to arch/ppc
[POWERPC] New device-tree interrupt parsing code
[POWERPC] Use the genirq framework
[PATCH] genirq: Allow fasteoi handler to retrigger disabled interrupts
[POWERPC] Update the SWIM3 (powermac) floppy driver
[POWERPC] Fix error handling in detecting legacy serial ports
[POWERPC] Fix booting on Momentum "Apache" board (a Maple derivative)
[POWERPC] Fix various offb and BootX-related issues
[POWERPC] Add a default config for 32-bit CHRP machines
[POWERPC] fix implicit declaration on cell.
[POWERPC] change get_property to return void *
Diffstat (limited to 'arch')
51 files changed, 6284 insertions, 2229 deletions
diff --git a/arch/powerpc/configs/chrp32_defconfig b/arch/powerpc/configs/chrp32_defconfig new file mode 100644 index 000000000000..0fa010a63a8e --- /dev/null +++ b/arch/powerpc/configs/chrp32_defconfig @@ -0,0 +1,1378 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.17 +# Mon Jul 3 12:08:41 2006 +# +# CONFIG_PPC64 is not set +CONFIG_PPC32=y +CONFIG_PPC_MERGE=y +CONFIG_MMU=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_RWSEM_XCHGADD_ALGORITHM=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_PPC=y +CONFIG_EARLY_PRINTK=y +CONFIG_GENERIC_NVRAM=y +CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y +CONFIG_ARCH_MAY_HAVE_PC_FDC=y +CONFIG_PPC_OF=y +CONFIG_PPC_UDBG_16550=y +CONFIG_GENERIC_TBSYNC=y +# CONFIG_DEFAULT_UIMAGE is not set + +# +# Processor support +# +CONFIG_CLASSIC32=y +# CONFIG_PPC_52xx is not set +# CONFIG_PPC_82xx is not set +# CONFIG_PPC_83xx is not set +# CONFIG_PPC_85xx is not set +# CONFIG_PPC_86xx is not set +# CONFIG_40x is not set +# CONFIG_44x is not set +# CONFIG_8xx is not set +# CONFIG_E200 is not set +CONFIG_6xx=y +CONFIG_PPC_FPU=y +# CONFIG_ALTIVEC is not set +CONFIG_PPC_STD_MMU=y +CONFIG_PPC_STD_MMU_32=y +CONFIG_SMP=y +CONFIG_NR_CPUS=4 + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +# CONFIG_CPUSETS is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +# CONFIG_EMBEDDED is not set +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_SLAB=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=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y +CONFIG_STOP_MACHINE=y + +# +# Block layer +# +CONFIG_LBD=y +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" + +# +# Platform support +# +CONFIG_PPC_MULTIPLATFORM=y +# CONFIG_PPC_ISERIES is not set +# CONFIG_EMBEDDED6xx is not set +# CONFIG_APUS is not set +CONFIG_PPC_CHRP=y +# CONFIG_PPC_PMAC is not set +# CONFIG_PPC_CELL is not set +# CONFIG_PPC_CELL_NATIVE is not set +CONFIG_MPIC=y +CONFIG_PPC_RTAS=y +# CONFIG_RTAS_ERROR_LOGGING is not set +CONFIG_RTAS_PROC=y +# CONFIG_MMIO_NVRAM is not set +CONFIG_PPC_MPC106=y +# CONFIG_PPC_970_NAP is not set +# CONFIG_CPU_FREQ is not set +# CONFIG_TAU is not set +# CONFIG_WANT_EARLY_SERIAL is not set + +# +# Kernel options +# +CONFIG_HIGHMEM=y +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set +CONFIG_PREEMPT_BKL=y +CONFIG_BINFMT_ELF=y +CONFIG_BINFMT_MISC=y +# CONFIG_KEXEC is not set +CONFIG_IRQ_ALL_CPUS=y +CONFIG_ARCH_FLATMEM_ENABLE=y +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +CONFIG_PROC_DEVICETREE=y +# CONFIG_CMDLINE_BOOL is not set +# CONFIG_PM is not set +CONFIG_SECCOMP=y +CONFIG_ISA_DMA_API=y + +# +# Bus options +# +CONFIG_ISA=y +CONFIG_GENERIC_ISA_DMA=y +CONFIG_PPC_I8259=y +CONFIG_PPC_INDIRECT_PCI=y +CONFIG_PCI=y +CONFIG_PCI_DOMAINS=y +# CONFIG_PCIEPORTBUS is not set +# CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# +# CONFIG_HOTPLUG_PCI is not set + +# +# Advanced setup +# +# CONFIG_ADVANCED_OPTIONS is not set + +# +# Default settings for advanced configuration options are used +# +CONFIG_HIGHMEM_START=0xfe000000 +CONFIG_LOWMEM_SIZE=0x30000000 +CONFIG_KERNEL_START=0xc0000000 +CONFIG_TASK_SIZE=0x80000000 +CONFIG_BOOT_LOAD=0x00800000 + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_PNP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_IP_MROUTE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y + +# +# IP: Virtual Server Configuration +# +# CONFIG_IP_VS is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +CONFIG_NETFILTER=y +# CONFIG_NETFILTER_DEBUG is not set + +# +# Core Netfilter Configuration +# +# CONFIG_NETFILTER_NETLINK is not set +# CONFIG_NETFILTER_XTABLES is not set + +# +# IP: Netfilter Configuration +# +CONFIG_IP_NF_CONNTRACK=m +# CONFIG_IP_NF_CT_ACCT is not set +# CONFIG_IP_NF_CONNTRACK_MARK is not set +# CONFIG_IP_NF_CONNTRACK_EVENTS is not set +# CONFIG_IP_NF_CT_PROTO_SCTP is not set +CONFIG_IP_NF_FTP=m +CONFIG_IP_NF_IRC=m +# CONFIG_IP_NF_NETBIOS_NS is not set +CONFIG_IP_NF_TFTP=m +CONFIG_IP_NF_AMANDA=m +# CONFIG_IP_NF_PPTP is not set +# CONFIG_IP_NF_H323 is not set +# CONFIG_IP_NF_SIP is not set +# CONFIG_IP_NF_QUEUE 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 +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +# CONFIG_STANDALONE is not set +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_FW_LOADER is not set +# CONFIG_DEBUG_DRIVER 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 is not set + +# +# Block devices +# +CONFIG_BLK_DEV_FD=y +# CONFIG_BLK_DEV_XD is not set +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_INITRD=y +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +CONFIG_IDE=y +CONFIG_BLK_DEV_IDE=y + +# +# Please see Documentation/ide.txt for help/info on IDE drives +# +# CONFIG_BLK_DEV_IDE_SATA is not set +CONFIG_BLK_DEV_IDEDISK=y +CONFIG_IDEDISK_MULTI_MODE=y +CONFIG_BLK_DEV_IDECD=y +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_BLK_DEV_IDEFLOPPY is not set +# CONFIG_BLK_DEV_IDESCSI is not set +# CONFIG_IDE_TASK_IOCTL is not set + +# +# IDE chipset support/bugfixes +# +CONFIG_IDE_GENERIC=y +CONFIG_BLK_DEV_IDEPCI=y +CONFIG_IDEPCI_SHARE_IRQ=y +# CONFIG_BLK_DEV_OFFBOARD is not set +CONFIG_BLK_DEV_GENERIC=y +# CONFIG_BLK_DEV_OPTI621 is not set +CONFIG_BLK_DEV_SL82C105=y +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 +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CY82C693 is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT34X is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT821X is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +# CONFIG_BLK_DEV_PDC202XX_NEW is not set +# CONFIG_BLK_DEV_SVWKS is not set +# CONFIG_BLK_DEV_SIIMAGE is not set +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +CONFIG_BLK_DEV_VIA82CXXX=y +# CONFIG_IDE_ARM is not set +# CONFIG_IDE_CHIPSETS 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 + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +CONFIG_CHR_DEV_ST=y +# CONFIG_CHR_DEV_OSST is not set +CONFIG_BLK_DEV_SR=y +CONFIG_BLK_DEV_SR_VENDOR=y +CONFIG_CHR_DEV_SG=y +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +CONFIG_SCSI_CONSTANTS=y +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +CONFIG_SCSI_SPI_ATTRS=y +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_7000FASST is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AHA152X is not set +# CONFIG_SCSI_AHA1542 is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_SCSI_IN2000 is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_HPTIOP is not set +# CONFIG_SCSI_BUSLOGIC is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_DTC3280 is not set +# CONFIG_SCSI_EATA is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_GDTH is not set +# CONFIG_SCSI_GENERIC_NCR5380 is not set +# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_NCR53C406A is not set +CONFIG_SCSI_SYM53C8XX_2=y +CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0 +CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16 +CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64 +CONFIG_SCSI_SYM53C8XX_MMIO=y +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_PAS16 is not set +# CONFIG_SCSI_PSI240I is not set +# CONFIG_SCSI_QLOGIC_FAS is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +# CONFIG_SCSI_QLA_FC is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_SYM53C416 is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_T128 is not set +# CONFIG_SCSI_U14_34F is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Old CD-ROM drivers (not SCSI, not IDE) +# +# CONFIG_CD_NO_IDESCSI is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Macintosh device drivers +# +# CONFIG_WINDFARM is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN 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=y +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_LANCE is not set +# CONFIG_NET_VENDOR_SMC is not set +# CONFIG_NET_VENDOR_RACAL is not set + +# +# Tulip family network device support +# +CONFIG_NET_TULIP=y +# CONFIG_DE2104X is not set +# CONFIG_TULIP is not set +CONFIG_DE4X5=y +# CONFIG_WINBOND_840 is not set +# CONFIG_DM9102 is not set +# CONFIG_ULI526X is not set +# CONFIG_AT1700 is not set +# CONFIG_DEPCA is not set +# CONFIG_HP100 is not set +# CONFIG_NET_ISA is not set +CONFIG_NET_PCI=y +CONFIG_PCNET32=y +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_AC3200 is not set +# CONFIG_APRICOT is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_CS89x0 is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +CONFIG_8139CP=y +CONFIG_8139TOO=y +# CONFIG_8139TOO_PIO is not set +# CONFIG_8139TOO_TUNE_TWISTER is not set +# CONFIG_8139TOO_8129 is not set +# CONFIG_8139_OLD_RX_RESET is not set +# CONFIG_SIS900 is not set +# CONFIG_EPIC100 is not set +# CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set +CONFIG_VIA_RHINE=y +# CONFIG_VIA_RHINE_MMIO is not set + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +# CONFIG_E1000 is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SKY2 is not set +# CONFIG_SK98LIN is not set +# CONFIG_VIA_VELOCITY is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set +CONFIG_MV643XX_ETH=y +# CONFIG_MV643XX_ETH_0 is not set +# CONFIG_MV643XX_ETH_1 is not set +# CONFIG_MV643XX_ETH_2 is not set + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +CONFIG_PPP=m +CONFIG_PPP_MULTILINK=y +CONFIG_PPP_FILTER=y +CONFIG_PPP_ASYNC=m +CONFIG_PPP_SYNC_TTY=m +CONFIG_PPP_DEFLATE=m +CONFIG_PPP_BSDCOMP=m +CONFIG_PPP_MPPE=m +CONFIG_PPPOE=m +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +CONFIG_INPUT_MOUSEDEV_PSAUX=y +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +CONFIG_INPUT_EVDEV=y +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +CONFIG_INPUT_KEYBOARD=y +CONFIG_KEYBOARD_ATKBD=y +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_LKKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_NEWTON is not set +CONFIG_INPUT_MOUSE=y +CONFIG_MOUSE_PS2=y +# CONFIG_MOUSE_SERIAL is not set +# CONFIG_MOUSE_INPORT is not set +# CONFIG_MOUSE_LOGIBM is not set +# CONFIG_MOUSE_PC110PAD is not set +# CONFIG_MOUSE_VSXXXAA is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +CONFIG_INPUT_MISC=y +# CONFIG_INPUT_PCSPKR is not set +CONFIG_INPUT_UINPUT=y + +# +# Hardware I/O ports +# +CONFIG_SERIO=y +CONFIG_SERIO_I8042=y +CONFIG_SERIO_SERPORT=y +# CONFIG_SERIO_PCIPS2 is not set +CONFIG_SERIO_LIBPS2=y +# CONFIG_SERIO_RAW is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_PCI=y +CONFIG_SERIAL_8250_NR_UARTS=4 +CONFIG_SERIAL_8250_RUNTIME_UARTS=4 +# CONFIG_SERIAL_8250_EXTENDED is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 +# CONFIG_HVC_RTAS is not set + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +CONFIG_NVRAM=y +CONFIG_GEN_RTC=y +# CONFIG_GEN_RTC_X is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_AGP is not set +# CONFIG_DRM is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +CONFIG_I2C=y +# CONFIG_I2C_CHARDEV is not set + +# +# I2C Algorithms +# +CONFIG_I2C_ALGOBIT=y +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +# CONFIG_I2C_ALI1535 is not set +# CONFIG_I2C_ALI1563 is not set +# CONFIG_I2C_ALI15X3 is not set +# CONFIG_I2C_AMD756 is not set +# CONFIG_I2C_AMD8111 is not set +# CONFIG_I2C_HYDRA is not set +# CONFIG_I2C_I801 is not set +# CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set +# CONFIG_I2C_MPC is not set +# CONFIG_I2C_NFORCE2 is not set +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_PROSAVAGE is not set +# CONFIG_I2C_SAVAGE4 is not set +# CONFIG_I2C_SIS5595 is not set +# CONFIG_I2C_SIS630 is not set +# CONFIG_I2C_SIS96X is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_VIA is not set +# CONFIG_I2C_VIAPRO is not set +# CONFIG_I2C_VOODOO3 is not set +# CONFIG_I2C_PCA_ISA is not set + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +# CONFIG_SENSORS_EEPROM is not set +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_M41T00 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# + +# +# Hardware Monitoring support +# +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set + +# +# Misc devices +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set +# CONFIG_USB_DABUSB is not set + +# +# Graphics support +# +CONFIG_FB=y +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +CONFIG_FB_MACMODES=y +CONFIG_FB_FIRMWARE_EDID=y +# CONFIG_FB_BACKLIGHT is not set +CONFIG_FB_MODE_HELPERS=y +CONFIG_FB_TILEBLITTING=y +# CONFIG_FB_CIRRUS is not set +# CONFIG_FB_PM2 is not set +# CONFIG_FB_CYBER2000 is not set +CONFIG_FB_OF=y +# CONFIG_FB_CT65550 is not set +# CONFIG_FB_ASILIANT is not set +# CONFIG_FB_IMSTT is not set +# CONFIG_FB_VGA16 is not set +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_NVIDIA is not set +# CONFIG_FB_RIVA is not set +CONFIG_FB_MATROX=y +CONFIG_FB_MATROX_MILLENIUM=y +CONFIG_FB_MATROX_MYSTIQUE=y +CONFIG_FB_MATROX_G=y +# CONFIG_FB_MATROX_I2C is not set +# CONFIG_FB_MATROX_MULTIHEAD is not set +CONFIG_FB_RADEON=y +CONFIG_FB_RADEON_I2C=y +# CONFIG_FB_RADEON_DEBUG is not set +# CONFIG_FB_ATY128 is not set +CONFIG_FB_ATY=y +CONFIG_FB_ATY_CT=y +# CONFIG_FB_ATY_GENERIC_LCD is not set +CONFIG_FB_ATY_GX=y +# CONFIG_FB_SAVAGE is not set +# CONFIG_FB_SIS is not set +# CONFIG_FB_NEOMAGIC is not set +# CONFIG_FB_KYRO is not set +CONFIG_FB_3DFX=y +# CONFIG_FB_3DFX_ACCEL is not set +# CONFIG_FB_VOODOO1 is not set +# CONFIG_FB_TRIDENT is not set +# CONFIG_FB_VIRTUAL is not set + +# +# Console display driver support +# +CONFIG_VGA_CONSOLE=y +# CONFIG_VGACON_SOFT_SCROLLBACK is not set +# CONFIG_MDA_CONSOLE is not set +CONFIG_DUMMY_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +# CONFIG_FONTS is not set +CONFIG_FONT_8x8=y +CONFIG_FONT_8x16=y + +# +# Logo configuration +# +CONFIG_LOGO=y +CONFIG_LOGO_LINUX_MONO=y +CONFIG_LOGO_LINUX_VGA16=y +CONFIG_LOGO_LINUX_CLUT224=y +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB_ARCH_HAS_EHCI=y +CONFIG_USB=y +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_BANDWIDTH is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +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_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +CONFIG_USB_UHCI_HCD=y +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=m +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_ISD200 is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set +# CONFIG_USB_STORAGE_ALAUDA is not set +# CONFIG_USB_STORAGE_ONETOUCH is not set +# CONFIG_USB_LIBUSUAL is not set + +# +# USB Input Devices +# +CONFIG_USB_HID=y +CONFIG_USB_HIDINPUT=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 + +# +# 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 is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +# CONFIG_USB_SERIAL is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CY7C63 is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGETKIT is not set +# CONFIG_USB_PHIDGETSERVO is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_APPLEDISPLAY is not set +# CONFIG_USB_SISUSBVGA is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +CONFIG_ISO9660_FS=y +# CONFIG_JOLIET is not set +# CONFIG_ZISOFS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=m +CONFIG_MSDOS_FS=m +CONFIG_VFAT_FS=m +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +# CONFIG_NFS_FS is not set +# CONFIG_NFSD is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +CONFIG_PARTITION_ADVANCED=y +# CONFIG_ACORN_PARTITION is not set +# CONFIG_OSF_PARTITION is not set +# CONFIG_AMIGA_PARTITION is not set +# CONFIG_ATARI_PARTITION is not set +CONFIG_MAC_PARTITION=y +CONFIG_MSDOS_PARTITION=y +# CONFIG_BSD_DISKLABEL is not set +# CONFIG_MINIX_SUBPARTITION is not set +# CONFIG_SOLARIS_X86_PARTITION is not set +# CONFIG_UNIXWARE_DISKLABEL is not set +# CONFIG_LDM_PARTITION is not set +# CONFIG_SGI_PARTITION is not set +# CONFIG_ULTRIX_PARTITION is not set +# CONFIG_SUN_PARTITION is not set +# CONFIG_KARMA_PARTITION is not set +# CONFIG_EFI_PARTITION is not set + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +# CONFIG_NLS_CODEPAGE_437 is not set +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +CONFIG_NLS_ASCII=y +CONFIG_NLS_ISO8859_1=m +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Library routines +# +CONFIG_CRC_CCITT=m +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=m +CONFIG_ZLIB_DEFLATE=m +CONFIG_TEXTSEARCH=y +CONFIG_TEXTSEARCH_KMP=m + +# +# Instrumentation Support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_MAGIC_SYSRQ=y +CONFIG_DEBUG_KERNEL=y +CONFIG_LOG_BUF_SHIFT=15 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_DEBUG_SLAB is not set +CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_SPINLOCK is not set +CONFIG_DEBUG_SPINLOCK_SLEEP=y +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_HIGHMEM is not set +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_DEBUG_VM is not set +CONFIG_FORCED_INLINING=y +# CONFIG_RCU_TORTURE_TEST is not set +CONFIG_DEBUGGER=y +CONFIG_XMON=y +CONFIG_XMON_DEFAULT=y +# CONFIG_BDI_SWITCH is not set +# CONFIG_BOOTX_TEXT is not set +# CONFIG_PPC_EARLY_DEBUG is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +# CONFIG_CRYPTO_HMAC is not set +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +# CONFIG_CRYPTO_MD5 is not set +CONFIG_CRYPTO_SHA1=m +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +# CONFIG_CRYPTO_DES is not set +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +CONFIG_CRYPTO_ARC4=m +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_DEFLATE is not set +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_TEST is not set + +# +# Hardware crypto devices +# diff --git a/arch/powerpc/configs/mpc834x_itx_defconfig b/arch/powerpc/configs/mpc834x_itx_defconfig new file mode 100644 index 000000000000..fc2d9789adc8 --- /dev/null +++ b/arch/powerpc/configs/mpc834x_itx_defconfig @@ -0,0 +1,1336 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.17 +# Fri Jun 30 17:53:25 2006 +# +# CONFIG_PPC64 is not set +CONFIG_PPC32=y +CONFIG_PPC_MERGE=y +CONFIG_MMU=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_IRQ_PER_CPU=y +CONFIG_RWSEM_XCHGADD_ALGORITHM=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_PPC=y +CONFIG_EARLY_PRINTK=y +CONFIG_GENERIC_NVRAM=y +CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y +CONFIG_ARCH_MAY_HAVE_PC_FDC=y +CONFIG_PPC_OF=y +CONFIG_PPC_UDBG_16550=y +# CONFIG_GENERIC_TBSYNC is not set +CONFIG_DEFAULT_UIMAGE=y + +# +# Processor support +# +# CONFIG_CLASSIC32 is not set +# CONFIG_PPC_52xx is not set +# CONFIG_PPC_82xx is not set +CONFIG_PPC_83xx=y +# CONFIG_PPC_85xx is not set +# CONFIG_PPC_86xx is not set +# CONFIG_40x is not set +# CONFIG_44x is not set +# CONFIG_8xx is not set +# CONFIG_E200 is not set +CONFIG_6xx=y +CONFIG_83xx=y +CONFIG_PPC_FPU=y +CONFIG_PPC_STD_MMU=y +CONFIG_PPC_STD_MMU_32=y +# CONFIG_SMP is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_EMBEDDED=y +# CONFIG_KALLSYMS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_RT_MUTEXES=y +CONFIG_FUTEX=y +# CONFIG_EPOLL is not set +CONFIG_SHMEM=y +CONFIG_SLAB=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 +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +# CONFIG_KMOD is not set + +# +# Block layer +# +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" +CONFIG_PPC_GEN550=y +# CONFIG_WANT_EARLY_SERIAL is not set + +# +# Platform support +# +# CONFIG_MPC834x_SYS is not set +CONFIG_MPC834x_ITX=y +CONFIG_MPC834x=y + +# +# Kernel options +# +# CONFIG_HIGHMEM is not set +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_MISC is not set +CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y +CONFIG_ARCH_FLATMEM_ENABLE=y +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_PROC_DEVICETREE=y +# CONFIG_CMDLINE_BOOL is not set +# CONFIG_PM is not set +# CONFIG_SOFTWARE_SUSPEND is not set +CONFIG_SECCOMP=y +CONFIG_ISA_DMA_API=y + +# +# Bus options +# +CONFIG_GENERIC_ISA_DMA=y +# CONFIG_PPC_I8259 is not set +CONFIG_PPC_INDIRECT_PCI=y +CONFIG_FSL_SOC=y +CONFIG_PCI=y +CONFIG_PCI_DOMAINS=y +# CONFIG_PCIEPORTBUS is not set +# CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# +# CONFIG_HOTPLUG_PCI is not set + +# +# Advanced setup +# +# CONFIG_ADVANCED_OPTIONS is not set + +# +# Default settings for advanced configuration options are used +# +CONFIG_HIGHMEM_START=0xfe000000 +CONFIG_LOWMEM_SIZE=0x30000000 +CONFIG_KERNEL_START=0xc0000000 +CONFIG_TASK_SIZE=0x80000000 +CONFIG_BOOT_LOAD=0x00800000 + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_IP_MROUTE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# 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 +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_FW_LOADER is not set +# CONFIG_DEBUG_DRIVER 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=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +# CONFIG_MTD_PARTITIONS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +# CONFIG_MTD_BLOCK is not set +# CONFIG_MTD_BLOCK_RO is not set +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_PHYSMAP_START=0xfe000000 +CONFIG_MTD_PHYSMAP_LEN=0x1000000 +CONFIG_MTD_PHYSMAP_BANKWIDTH=2 +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_PMC551 is not set +# CONFIG_MTD_DATAFLASH is not set +# CONFIG_MTD_M25P80 is not set +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_FD is not set +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=32768 +CONFIG_BLK_DEV_INITRD=y +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +CONFIG_IDE=y +# CONFIG_BLK_DEV_IDE is not set +# CONFIG_BLK_DEV_HD_ONLY is not set +# CONFIG_BLK_DEV_HD is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +CONFIG_CHR_DEV_SG=y +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +CONFIG_SCSI_SPI_ATTRS=y +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +CONFIG_SCSI_SATA=y +# CONFIG_SCSI_SATA_AHCI is not set +# CONFIG_SCSI_SATA_SVW is not set +# CONFIG_SCSI_ATA_PIIX is not set +# CONFIG_SCSI_SATA_MV is not set +# CONFIG_SCSI_SATA_NV is not set +# CONFIG_SCSI_PDC_ADMA is not set +# CONFIG_SCSI_HPTIOP is not set +# CONFIG_SCSI_SATA_QSTOR is not set +# CONFIG_SCSI_SATA_PROMISE is not set +# CONFIG_SCSI_SATA_SX4 is not set +CONFIG_SCSI_SATA_SIL=y +# CONFIG_SCSI_SATA_SIL24 is not set +# CONFIG_SCSI_SATA_SIS is not set +# CONFIG_SCSI_SATA_ULI is not set +# CONFIG_SCSI_SATA_VIA is not set +# CONFIG_SCSI_SATA_VITESSE is not set +# CONFIG_SCSI_BUSLOGIC is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_EATA is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_GDTH is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +# CONFIG_SCSI_QLA_FC is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Multi-device support (RAID and LVM) +# +CONFIG_MD=y +CONFIG_BLK_DEV_MD=y +CONFIG_MD_LINEAR=y +CONFIG_MD_RAID0=y +CONFIG_MD_RAID1=y +# CONFIG_MD_RAID10 is not set +# CONFIG_MD_RAID456 is not set +# CONFIG_MD_MULTIPATH is not set +# CONFIG_MD_FAULTY is not set +# CONFIG_BLK_DEV_DM is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Macintosh device drivers +# +# CONFIG_WINDFARM is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +CONFIG_PHYLIB=y + +# +# MII PHY device drivers +# +# CONFIG_MARVELL_PHY is not set +# CONFIG_DAVICOM_PHY is not set +# CONFIG_QSEMI_PHY is not set +# CONFIG_LXT_PHY is not set +CONFIG_CICADA_PHY=y +# CONFIG_VITESSE_PHY is not set +# CONFIG_SMSC_PHY is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# 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 is not set +# CONFIG_HP100 is not set +CONFIG_NET_PCI=y +# CONFIG_PCNET32 is not set +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +CONFIG_E100=y +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +# CONFIG_8139CP is not set +# CONFIG_8139TOO is not set +# CONFIG_SIS900 is not set +# CONFIG_EPIC100 is not set +# CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set +# CONFIG_VIA_RHINE is not set + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +# CONFIG_E1000 is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SKY2 is not set +# CONFIG_SK98LIN is not set +# CONFIG_VIA_VELOCITY is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set +CONFIG_GIANFAR=y +CONFIG_GFAR_NAPI=y + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_PCI=y +CONFIG_SERIAL_8250_NR_UARTS=4 +CONFIG_SERIAL_8250_RUNTIME_UARTS=4 +# CONFIG_SERIAL_8250_EXTENDED is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +CONFIG_WATCHDOG=y +# CONFIG_WATCHDOG_NOWAYOUT is not set + +# +# Watchdog Device Drivers +# +# CONFIG_SOFT_WATCHDOG is not set +CONFIG_83xx_WDT=y + +# +# PCI-based Watchdog Cards +# +# CONFIG_PCIPCWATCHDOG is not set +# CONFIG_WDTPCI is not set + +# +# USB-based Watchdog Cards +# +# CONFIG_USBPCWATCHDOG is not set +CONFIG_HW_RANDOM=y +# CONFIG_NVRAM is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_AGP is not set +# CONFIG_DRM is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y + +# +# I2C Algorithms +# +# CONFIG_I2C_ALGOBIT is not set +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +# CONFIG_I2C_ALI1535 is not set +# CONFIG_I2C_ALI1563 is not set +# CONFIG_I2C_ALI15X3 is not set +# CONFIG_I2C_AMD756 is not set +# CONFIG_I2C_AMD8111 is not set +# CONFIG_I2C_I801 is not set +# CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set +CONFIG_I2C_MPC=y +# CONFIG_I2C_NFORCE2 is not set +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_PROSAVAGE is not set +# CONFIG_I2C_SAVAGE4 is not set +# CONFIG_I2C_SIS5595 is not set +# CONFIG_I2C_SIS630 is not set +# CONFIG_I2C_SIS96X is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_VIA is not set +# CONFIG_I2C_VIAPRO is not set +# CONFIG_I2C_VOODOO3 is not set +# CONFIG_I2C_PCA_ISA is not set + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +# CONFIG_SENSORS_EEPROM is not set +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_M41T00 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +CONFIG_SPI=y +# CONFIG_SPI_DEBUG is not set +CONFIG_SPI_MASTER=y + +# +# SPI Master Controller Drivers +# +CONFIG_SPI_BITBANG=y +CONFIG_SPI_MPC83xx=y + +# +# SPI Protocol Masters +# + +# +# Dallas's 1-wire bus +# + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ABITUGURU is not set +# CONFIG_SENSORS_ADM1021 is not set +# CONFIG_SENSORS_ADM1025 is not set +# CONFIG_SENSORS_ADM1026 is not set +# CONFIG_SENSORS_ADM1031 is not set +# CONFIG_SENSORS_ADM9240 is not set +# CONFIG_SENSORS_ASB100 is not set +# CONFIG_SENSORS_ATXP1 is not set +# CONFIG_SENSORS_DS1621 is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set +# CONFIG_SENSORS_GL518SM is not set +# CONFIG_SENSORS_GL520SM is not set +# CONFIG_SENSORS_IT87 is not set +# CONFIG_SENSORS_LM63 is not set +# CONFIG_SENSORS_LM70 is not set +# CONFIG_SENSORS_LM75 is not set +# CONFIG_SENSORS_LM77 is not set +# CONFIG_SENSORS_LM78 is not set +# CONFIG_SENSORS_LM80 is not set +# CONFIG_SENSORS_LM83 is not set +# CONFIG_SENSORS_LM85 is not set +# CONFIG_SENSORS_LM87 is not set +# CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set +# CONFIG_SENSORS_MAX1619 is not set +# CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_SIS5595 is not set +# CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47M192 is not set +# CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_VIA686A is not set +# CONFIG_SENSORS_VT8231 is not set +# CONFIG_SENSORS_W83781D is not set +# CONFIG_SENSORS_W83791D is not set +# CONFIG_SENSORS_W83792D is not set +# CONFIG_SENSORS_W83L785TS is not set +# CONFIG_SENSORS_W83627HF is not set +# CONFIG_SENSORS_W83627EHF is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set +# CONFIG_USB_DABUSB is not set + +# +# Graphics support +# +CONFIG_FIRMWARE_EDID=y +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB_ARCH_HAS_EHCI=y +CONFIG_USB=y +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_BANDWIDTH is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +CONFIG_USB_EHCI_HCD=y +# CONFIG_USB_EHCI_SPLIT_ISO is not set +# CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_EHCI_TT_NEWSCHED is not set +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +CONFIG_USB_UHCI_HCD=y +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=y +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set +# CONFIG_USB_STORAGE_ALAUDA is not set +# CONFIG_USB_LIBUSUAL is not set + +# +# USB Input Devices +# +# CONFIG_USB_HID 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 + +# +# 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 is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +# CONFIG_USB_SERIAL is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CY7C63 is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGETKIT is not set +# CONFIG_USB_PHIDGETSERVO is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_APPLEDISPLAY is not set +# CONFIG_USB_SISUSBVGA is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +CONFIG_USB_GADGET=y +# CONFIG_USB_GADGET_DEBUG_FILES is not set +CONFIG_USB_GADGET_SELECTED=y +CONFIG_USB_GADGET_NET2280=y +CONFIG_USB_NET2280=y +# CONFIG_USB_GADGET_PXA2XX is not set +# CONFIG_USB_GADGET_GOKU is not set +# CONFIG_USB_GADGET_LH7A40X is not set +# CONFIG_USB_GADGET_OMAP is not set +# CONFIG_USB_GADGET_AT91 is not set +# CONFIG_USB_GADGET_DUMMY_HCD is not set +CONFIG_USB_GADGET_DUALSPEED=y +# CONFIG_USB_ZERO is not set +CONFIG_USB_ETH=y +CONFIG_USB_ETH_RNDIS=y +# CONFIG_USB_GADGETFS is not set +# CONFIG_USB_FILE_STORAGE is not set +# CONFIG_USB_G_SERIAL is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_HCTOSYS=y +CONFIG_RTC_HCTOSYS_DEVICE="rtc0" + +# +# RTC interfaces +# +CONFIG_RTC_INTF_SYSFS=y +CONFIG_RTC_INTF_PROC=y +CONFIG_RTC_INTF_DEV=y +CONFIG_RTC_INTF_DEV_UIE_EMUL=y + +# +# RTC drivers +# +# CONFIG_RTC_DRV_X1205 is not set +CONFIG_RTC_DRV_DS1307=y +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_DS1672 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_PCF8563 is not set +# CONFIG_RTC_DRV_PCF8583 is not set +# CONFIG_RTC_DRV_RS5C348 is not set +# CONFIG_RTC_DRV_RS5C372 is not set +# CONFIG_RTC_DRV_M48T86 is not set +# CONFIG_RTC_DRV_TEST is not set +# CONFIG_RTC_DRV_MAX6902 is not set +# CONFIG_RTC_DRV_V3020 is not set + +# +# DMA Engine support +# +CONFIG_DMA_ENGINE=y + +# +# DMA Clients +# +CONFIG_NET_DMA=y + +# +# DMA Devices +# +CONFIG_INTEL_IOATDMA=y + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_JFFS_FS is not set +# CONFIG_JFFS2_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +CONFIG_NFS_V4=y +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +CONFIG_SUNRPC_GSS=y +CONFIG_RPCSEC_GSS_KRB5=y +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_CIFS_DEBUG2 is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +CONFIG_PARTITION_ADVANCED=y +# CONFIG_ACORN_PARTITION is not set +# CONFIG_OSF_PARTITION is not set +# CONFIG_AMIGA_PARTITION is not set +# CONFIG_ATARI_PARTITION is not set +# CONFIG_MAC_PARTITION is not set +# CONFIG_MSDOS_PARTITION is not set +# CONFIG_LDM_PARTITION is not set +# CONFIG_SGI_PARTITION is not set +# CONFIG_ULTRIX_PARTITION is not set +# CONFIG_SUN_PARTITION is not set +# CONFIG_KARMA_PARTITION is not set +# CONFIG_EFI_PARTITION is not set + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_PLIST=y + +# +# Instrumentation Support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +CONFIG_PRINTK_TIME=y +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_KERNEL=y +CONFIG_LOG_BUF_SHIFT=17 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_KOBJECT is not set +CONFIG_DEBUG_INFO=y +# CONFIG_DEBUG_FS is not set +# CONFIG_DEBUG_VM is not set +CONFIG_FORCED_INLINING=y +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_DEBUGGER is not set +# CONFIG_BDI_SWITCH is not set +CONFIG_BOOTX_TEXT=y +CONFIG_SERIAL_TEXT_DEBUG=y +# CONFIG_PPC_EARLY_DEBUG is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +# CONFIG_CRYPTO_HMAC is not set +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +CONFIG_CRYPTO_MD5=y +# CONFIG_CRYPTO_SHA1 is not set +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +CONFIG_CRYPTO_DES=y +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_DEFLATE is not set +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_TEST is not set + +# +# Hardware crypto devices +# diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c index a6920919d68e..f4e5e14ee2b6 100644 --- a/arch/powerpc/kernel/btext.c +++ b/arch/powerpc/kernel/btext.c @@ -111,7 +111,7 @@ void __init btext_setup_display(int width, int height, int depth, int pitch, logicalDisplayBase = (unsigned char *)address; dispDeviceBase = (unsigned char *)address; dispDeviceRowBytes = pitch; - dispDeviceDepth = depth; + dispDeviceDepth = depth == 15 ? 16 : depth; dispDeviceRect[0] = dispDeviceRect[1] = 0; dispDeviceRect[2] = width; dispDeviceRect[3] = height; @@ -160,20 +160,28 @@ int btext_initialize(struct device_node *np) unsigned long address = 0; u32 *prop; - prop = (u32 *)get_property(np, "width", NULL); + prop = (u32 *)get_property(np, "linux,bootx-width", NULL); + if (prop == NULL) + prop = (u32 *)get_property(np, "width", NULL); if (prop == NULL) return -EINVAL; width = *prop; - prop = (u32 *)get_property(np, "height", NULL); + prop = (u32 *)get_property(np, "linux,bootx-height", NULL); + if (prop == NULL) + prop = (u32 *)get_property(np, "height", NULL); if (prop == NULL) return -EINVAL; height = *prop; - prop = (u32 *)get_property(np, "depth", NULL); + prop = (u32 *)get_property(np, "linux,bootx-depth", NULL); + if (prop == NULL) + prop = (u32 *)get_property(np, "depth", NULL); if (prop == NULL) return -EINVAL; depth = *prop; pitch = width * ((depth + 7) / 8); - prop = (u32 *)get_property(np, "linebytes", NULL); + prop = (u32 *)get_property(np, "linux,bootx-linebytes", NULL); + if (prop == NULL) + prop = (u32 *)get_property(np, "linebytes", NULL); if (prop) pitch = *prop; if (pitch == 1) @@ -194,7 +202,7 @@ int btext_initialize(struct device_node *np) g_max_loc_Y = height / 16; dispDeviceBase = (unsigned char *)address; dispDeviceRowBytes = pitch; - dispDeviceDepth = depth; + dispDeviceDepth = depth == 15 ? 16 : depth; dispDeviceRect[0] = dispDeviceRect[1] = 0; dispDeviceRect[2] = width; dispDeviceRect[3] = height; diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index e47d40ac6f39..97ddc02a3d42 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -323,13 +323,11 @@ int ibmebus_request_irq(struct ibmebus_dev *dev, unsigned long irq_flags, const char * devname, void *dev_id) { - unsigned int irq = virt_irq_create_mapping(ist); + unsigned int irq = irq_create_mapping(NULL, ist, 0); if (irq == NO_IRQ) return -EINVAL; - irq = irq_offset_up(irq); - return request_irq(irq, handler, irq_flags, devname, dev_id); } @@ -337,12 +335,9 @@ EXPORT_SYMBOL(ibmebus_request_irq); void ibmebus_free_irq(struct ibmebus_dev *dev, u32 ist, void *dev_id) { - unsigned int irq = virt_irq_create_mapping(ist); + unsigned int irq = irq_find_mapping(NULL, ist); - irq = irq_offset_up(irq); free_irq(irq, dev_id); - - return; } EXPORT_SYMBOL(ibmebus_free_irq); diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index e3774f6b57cc..8cf987809c66 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -29,6 +29,8 @@ * to reduce code space and undefined function references. */ +#undef DEBUG + #include <linux/module.h> #include <linux/threads.h> #include <linux/kernel_stat.h> @@ -46,7 +48,10 @@ #include <linux/cpumask.h> #include <linux/profile.h> #include <linux/bitops.h> -#include <linux/pci.h> +#include <linux/list.h> +#include <linux/radix-tree.h> +#include <linux/mutex.h> +#include <linux/bootmem.h> #include <asm/uaccess.h> #include <asm/system.h> @@ -57,39 +62,38 @@ #include <asm/prom.h> #include <asm/ptrace.h> #include <asm/machdep.h> +#include <asm/udbg.h> #ifdef CONFIG_PPC_ISERIES #include <asm/paca.h> #endif int __irq_offset_value; -#ifdef CONFIG_PPC32 -EXPORT_SYMBOL(__irq_offset_value); -#endif - static int ppc_spurious_interrupts; #ifdef CONFIG_PPC32 -#define NR_MASK_WORDS ((NR_IRQS + 31) / 32) +EXPORT_SYMBOL(__irq_offset_value); +atomic_t ppc_n_lost_interrupts; +#ifndef CONFIG_PPC_MERGE +#define NR_MASK_WORDS ((NR_IRQS + 31) / 32) unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; -atomic_t ppc_n_lost_interrupts; +#endif #ifdef CONFIG_TAU_INT extern int tau_initialized; extern int tau_interrupts(int); #endif +#endif /* CONFIG_PPC32 */ #if defined(CONFIG_SMP) && !defined(CONFIG_PPC_MERGE) extern atomic_t ipi_recv; extern atomic_t ipi_sent; #endif -#endif /* CONFIG_PPC32 */ #ifdef CONFIG_PPC64 EXPORT_SYMBOL(irq_desc); int distribute_irqs = 1; -u64 ppc64_interrupt_controller; #endif /* CONFIG_PPC64 */ int show_interrupts(struct seq_file *p, void *v) @@ -182,7 +186,7 @@ void fixup_irqs(cpumask_t map) void do_IRQ(struct pt_regs *regs) { - int irq; + unsigned int irq; #ifdef CONFIG_IRQSTACKS struct thread_info *curtp, *irqtp; #endif @@ -213,22 +217,26 @@ void do_IRQ(struct pt_regs *regs) */ irq = ppc_md.get_irq(regs); - if (irq >= 0) { + if (irq != NO_IRQ && irq != NO_IRQ_IGNORE) { #ifdef CONFIG_IRQSTACKS /* Switch to the irq stack to handle this */ curtp = current_thread_info(); irqtp = hardirq_ctx[smp_processor_id()]; if (curtp != irqtp) { + struct irq_desc *desc = irq_desc + irq; + void *handler = desc->handle_irq; + if (handler == NULL) + handler = &__do_IRQ; irqtp->task = curtp->task; irqtp->flags = 0; - call___do_IRQ(irq, regs, irqtp); + call_handle_irq(irq, desc, regs, irqtp, handler); irqtp->task = NULL; if (irqtp->flags) set_bits(irqtp->flags, &curtp->flags); } else #endif - __do_IRQ(irq, regs); - } else if (irq != -2) + generic_handle_irq(irq, regs); + } else if (irq != NO_IRQ_IGNORE) /* That's not SMP safe ... but who cares ? */ ppc_spurious_interrupts++; @@ -245,191 +253,562 @@ void do_IRQ(struct pt_regs *regs) void __init init_IRQ(void) { + ppc_md.init_IRQ(); #ifdef CONFIG_PPC64 - static int once = 0; + irq_ctx_init(); +#endif +} + + +#ifdef CONFIG_IRQSTACKS +struct thread_info *softirq_ctx[NR_CPUS] __read_mostly; +struct thread_info *hardirq_ctx[NR_CPUS] __read_mostly; + +void irq_ctx_init(void) +{ + struct thread_info *tp; + int i; + + for_each_possible_cpu(i) { + memset((void *)softirq_ctx[i], 0, THREAD_SIZE); + tp = softirq_ctx[i]; + tp->cpu = i; + tp->preempt_count = SOFTIRQ_OFFSET; + + memset((void *)hardirq_ctx[i], 0, THREAD_SIZE); + tp = hardirq_ctx[i]; + tp->cpu = i; + tp->preempt_count = HARDIRQ_OFFSET; + } +} + +static inline void do_softirq_onstack(void) +{ + struct thread_info *curtp, *irqtp; + + curtp = current_thread_info(); + irqtp = softirq_ctx[smp_processor_id()]; + irqtp->task = curtp->task; + call_do_softirq(irqtp); + irqtp->task = NULL; +} - if (once) +#else +#define do_softirq_onstack() __do_softirq() +#endif /* CONFIG_IRQSTACKS */ + +void do_softirq(void) +{ + unsigned long flags; + + if (in_interrupt()) return; - once++; + local_irq_save(flags); -#endif - ppc_md.init_IRQ(); -#ifdef CONFIG_PPC64 - irq_ctx_init(); -#endif + if (local_softirq_pending()) + do_softirq_onstack(); + + local_irq_restore(flags); } +EXPORT_SYMBOL(do_softirq); + -#ifdef CONFIG_PPC64 /* - * Virtual IRQ mapping code, used on systems with XICS interrupt controllers. + * IRQ controller and virtual interrupts */ -#define UNDEFINED_IRQ 0xffffffff -unsigned int virt_irq_to_real_map[NR_IRQS]; +#ifdef CONFIG_PPC_MERGE -/* - * Don't use virtual irqs 0, 1, 2 for devices. - * The pcnet32 driver considers interrupt numbers < 2 to be invalid, - * and 2 is the XICS IPI interrupt. - * We limit virtual irqs to __irq_offet_value less than virt_irq_max so - * that when we offset them we don't end up with an interrupt - * number >= virt_irq_max. - */ -#define MIN_VIRT_IRQ 3 +static LIST_HEAD(irq_hosts); +static spinlock_t irq_big_lock = SPIN_LOCK_UNLOCKED; -unsigned int virt_irq_max; -static unsigned int max_virt_irq; -static unsigned int nr_virt_irqs; +struct irq_map_entry irq_map[NR_IRQS]; +static unsigned int irq_virq_count = NR_IRQS; +static struct irq_host *irq_default_host; -void -virt_irq_init(void) +struct irq_host *irq_alloc_host(unsigned int revmap_type, + unsigned int revmap_arg, + struct irq_host_ops *ops, + irq_hw_number_t inval_irq) { - int i; + struct irq_host *host; + unsigned int size = sizeof(struct irq_host); + unsigned int i; + unsigned int *rmap; + unsigned long flags; + + /* Allocate structure and revmap table if using linear mapping */ + if (revmap_type == IRQ_HOST_MAP_LINEAR) + size += revmap_arg * sizeof(unsigned int); + if (mem_init_done) + host = kzalloc(size, GFP_KERNEL); + else { + host = alloc_bootmem(size); + if (host) + memset(host, 0, size); + } + if (host == NULL) + return NULL; - if ((virt_irq_max == 0) || (virt_irq_max > (NR_IRQS - 1))) - virt_irq_max = NR_IRQS - 1; - max_virt_irq = virt_irq_max - __irq_offset_value; - nr_virt_irqs = max_virt_irq - MIN_VIRT_IRQ + 1; + /* Fill structure */ + host->revmap_type = revmap_type; + host->inval_irq = inval_irq; + host->ops = ops; - for (i = 0; i < NR_IRQS; i++) - virt_irq_to_real_map[i] = UNDEFINED_IRQ; + spin_lock_irqsave(&irq_big_lock, flags); + + /* If it's a legacy controller, check for duplicates and + * mark it as allocated (we use irq 0 host pointer for that + */ + if (revmap_type == IRQ_HOST_MAP_LEGACY) { + if (irq_map[0].host != NULL) { + spin_unlock_irqrestore(&irq_big_lock, flags); + /* If we are early boot, we can't free the structure, + * too bad... + * this will be fixed once slab is made available early + * instead of the current cruft + */ + if (mem_init_done) + kfree(host); + return NULL; + } + irq_map[0].host = host; + } + + list_add(&host->link, &irq_hosts); + spin_unlock_irqrestore(&irq_big_lock, flags); + + /* Additional setups per revmap type */ + switch(revmap_type) { + case IRQ_HOST_MAP_LEGACY: + /* 0 is always the invalid number for legacy */ + host->inval_irq = 0; + /* setup us as the host for all legacy interrupts */ + for (i = 1; i < NUM_ISA_INTERRUPTS; i++) { + irq_map[i].hwirq = 0; + smp_wmb(); + irq_map[i].host = host; + smp_wmb(); + + /* Clear some flags */ + get_irq_desc(i)->status + &= ~(IRQ_NOREQUEST | IRQ_LEVEL); + + /* Legacy flags are left to default at this point, + * one can then use irq_create_mapping() to + * explicitely change them + */ + ops->map(host, i, i, 0); + } + break; + case IRQ_HOST_MAP_LINEAR: + rmap = (unsigned int *)(host + 1); + for (i = 0; i < revmap_arg; i++) + rmap[i] = IRQ_NONE; + host->revmap_data.linear.size = revmap_arg; + smp_wmb(); + host->revmap_data.linear.revmap = rmap; + break; + default: + break; + } + + pr_debug("irq: Allocated host of type %d @0x%p\n", revmap_type, host); + + return host; } -/* Create a mapping for a real_irq if it doesn't already exist. - * Return the virtual irq as a convenience. - */ -int virt_irq_create_mapping(unsigned int real_irq) +struct irq_host *irq_find_host(struct device_node *node) { - unsigned int virq, first_virq; - static int warned; + struct irq_host *h, *found = NULL; + unsigned long flags; + + /* We might want to match the legacy controller last since + * it might potentially be set to match all interrupts in + * the absence of a device node. This isn't a problem so far + * yet though... + */ + spin_lock_irqsave(&irq_big_lock, flags); + list_for_each_entry(h, &irq_hosts, link) + if (h->ops->match == NULL || h->ops->match(h, node)) { + found = h; + break; + } + spin_unlock_irqrestore(&irq_big_lock, flags); + return found; +} +EXPORT_SYMBOL_GPL(irq_find_host); + +void irq_set_default_host(struct irq_host *host) +{ + pr_debug("irq: Default host set to @0x%p\n", host); - if (ppc64_interrupt_controller == IC_OPEN_PIC) - return real_irq; /* no mapping for openpic (for now) */ + irq_default_host = host; +} - if (ppc64_interrupt_controller == IC_CELL_PIC) - return real_irq; /* no mapping for iic either */ +void irq_set_virq_count(unsigned int count) +{ + pr_debug("irq: Trying to set virq count to %d\n", count); - /* don't map interrupts < MIN_VIRT_IRQ */ - if (real_irq < MIN_VIRT_IRQ) { - virt_irq_to_real_map[real_irq] = real_irq; - return real_irq; + BUG_ON(count < NUM_ISA_INTERRUPTS); + if (count < NR_IRQS) + irq_virq_count = count; +} + +unsigned int irq_create_mapping(struct irq_host *host, + irq_hw_number_t hwirq, + unsigned int flags) +{ + unsigned int virq, hint; + + pr_debug("irq: irq_create_mapping(0x%p, 0x%lx, 0x%x)\n", + host, hwirq, flags); + + /* Look for default host if nececssary */ + if (host == NULL) + host = irq_default_host; + if (host == NULL) { + printk(KERN_WARNING "irq_create_mapping called for" + " NULL host, hwirq=%lx\n", hwirq); + WARN_ON(1); + return NO_IRQ; } + pr_debug("irq: -> using host @%p\n", host); - /* map to a number between MIN_VIRT_IRQ and max_virt_irq */ - virq = real_irq; - if (virq > max_virt_irq) - virq = (virq % nr_virt_irqs) + MIN_VIRT_IRQ; - - /* search for this number or a free slot */ - first_virq = virq; - while (virt_irq_to_real_map[virq] != UNDEFINED_IRQ) { - if (virt_irq_to_real_map[virq] == real_irq) - return virq; - if (++virq > max_virt_irq) - virq = MIN_VIRT_IRQ; - if (virq == first_virq) - goto nospace; /* oops, no free slots */ + /* Check if mapping already exist, if it does, call + * host->ops->map() to update the flags + */ + virq = irq_find_mapping(host, hwirq); + if (virq != IRQ_NONE) { + pr_debug("irq: -> existing mapping on virq %d\n", virq); + host->ops->map(host, virq, hwirq, flags); + return virq; } - virt_irq_to_real_map[virq] = real_irq; + /* Get a virtual interrupt number */ + if (host->revmap_type == IRQ_HOST_MAP_LEGACY) { + /* Handle legacy */ + virq = (unsigned int)hwirq; + if (virq == 0 || virq >= NUM_ISA_INTERRUPTS) + return NO_IRQ; + return virq; + } else { + /* Allocate a virtual interrupt number */ + hint = hwirq % irq_virq_count; + virq = irq_alloc_virt(host, 1, hint); + if (virq == NO_IRQ) { + pr_debug("irq: -> virq allocation failed\n"); + return NO_IRQ; + } + } + pr_debug("irq: -> obtained virq %d\n", virq); + + /* Clear some flags */ + get_irq_desc(virq)->status &= ~(IRQ_NOREQUEST | IRQ_LEVEL); + + /* map it */ + if (host->ops->map(host, virq, hwirq, flags)) { + pr_debug("irq: -> mapping failed, freeing\n"); + irq_free_virt(virq, 1); + return NO_IRQ; + } + smp_wmb(); + irq_map[virq].hwirq = hwirq; + smp_mb(); return virq; +} +EXPORT_SYMBOL_GPL(irq_create_mapping); + +extern unsigned int irq_create_of_mapping(struct device_node *controller, + u32 *intspec, unsigned int intsize) +{ + struct irq_host *host; + irq_hw_number_t hwirq; + unsigned int flags = IRQ_TYPE_NONE; - nospace: - if (!warned) { - printk(KERN_CRIT "Interrupt table is full\n"); - printk(KERN_CRIT "Increase virt_irq_max (currently %d) " - "in your kernel sources and rebuild.\n", virt_irq_max); - warned = 1; + if (controller == NULL) + host = irq_default_host; + else + host = irq_find_host(controller); + if (host == NULL) + return NO_IRQ; + + /* If host has no translation, then we assume interrupt line */ + if (host->ops->xlate == NULL) + hwirq = intspec[0]; + else { + if (host->ops->xlate(host, controller, intspec, intsize, + &hwirq, &flags)) + return NO_IRQ; } - return NO_IRQ; + + return irq_create_mapping(host, hwirq, flags); } +EXPORT_SYMBOL_GPL(irq_create_of_mapping); -/* - * In most cases will get a hit on the very first slot checked in the - * virt_irq_to_real_map. Only when there are a large number of - * IRQs will this be expensive. - */ -unsigned int real_irq_to_virt_slowpath(unsigned int real_irq) +unsigned int irq_of_parse_and_map(struct device_node *dev, int index) { - unsigned int virq; - unsigned int first_virq; + struct of_irq oirq; - virq = real_irq; + if (of_irq_map_one(dev, index, &oirq)) + return NO_IRQ; - if (virq > max_virt_irq) - virq = (virq % nr_virt_irqs) + MIN_VIRT_IRQ; + return irq_create_of_mapping(oirq.controller, oirq.specifier, + oirq.size); +} +EXPORT_SYMBOL_GPL(irq_of_parse_and_map); - first_virq = virq; +void irq_dispose_mapping(unsigned int virq) +{ + struct irq_host *host = irq_map[virq].host; + irq_hw_number_t hwirq; + unsigned long flags; - do { - if (virt_irq_to_real_map[virq] == real_irq) - return virq; + WARN_ON (host == NULL); + if (host == NULL) + return; - virq++; + /* Never unmap legacy interrupts */ + if (host->revmap_type == IRQ_HOST_MAP_LEGACY) + return; - if (virq >= max_virt_irq) - virq = 0; + /* remove chip and handler */ + set_irq_chip_and_handler(virq, NULL, NULL); + + /* Make sure it's completed */ + synchronize_irq(virq); + + /* Tell the PIC about it */ + if (host->ops->unmap) + host->ops->unmap(host, virq); + smp_mb(); + + /* Clear reverse map */ + hwirq = irq_map[virq].hwirq; + switch(host->revmap_type) { + case IRQ_HOST_MAP_LINEAR: + if (hwirq < host->revmap_data.linear.size) + host->revmap_data.linear.revmap[hwirq] = IRQ_NONE; + break; + case IRQ_HOST_MAP_TREE: + /* Check if radix tree allocated yet */ + if (host->revmap_data.tree.gfp_mask == 0) + break; + /* XXX radix tree not safe ! remove lock whem it becomes safe + * and use some RCU sync to make sure everything is ok before we + * can re-use that map entry + */ + spin_lock_irqsave(&irq_big_lock, flags); + radix_tree_delete(&host->revmap_data.tree, hwirq); + spin_unlock_irqrestore(&irq_big_lock, flags); + break; + } - } while (first_virq != virq); + /* Destroy map */ + smp_mb(); + irq_map[virq].hwirq = host->inval_irq; - return NO_IRQ; + /* Set some flags */ + get_irq_desc(virq)->status |= IRQ_NOREQUEST; + /* Free it */ + irq_free_virt(virq, 1); } -#endif /* CONFIG_PPC64 */ +EXPORT_SYMBOL_GPL(irq_dispose_mapping); -#ifdef CONFIG_IRQSTACKS -struct thread_info *softirq_ctx[NR_CPUS] __read_mostly; -struct thread_info *hardirq_ctx[NR_CPUS] __read_mostly; +unsigned int irq_find_mapping(struct irq_host *host, + irq_hw_number_t hwirq) +{ + unsigned int i; + unsigned int hint = hwirq % irq_virq_count; + + /* Look for default host if nececssary */ + if (host == NULL) + host = irq_default_host; + if (host == NULL) + return NO_IRQ; + + /* legacy -> bail early */ + if (host->revmap_type == IRQ_HOST_MAP_LEGACY) + return hwirq; + + /* Slow path does a linear search of the map */ + if (hint < NUM_ISA_INTERRUPTS) + hint = NUM_ISA_INTERRUPTS; + i = hint; + do { + if (irq_map[i].host == host && + irq_map[i].hwirq == hwirq) + return i; + i++; + if (i >= irq_virq_count) + i = NUM_ISA_INTERRUPTS; + } while(i != hint); + return NO_IRQ; +} +EXPORT_SYMBOL_GPL(irq_find_mapping); -void irq_ctx_init(void) + +unsigned int irq_radix_revmap(struct irq_host *host, + irq_hw_number_t hwirq) { - struct thread_info *tp; - int i; + struct radix_tree_root *tree; + struct irq_map_entry *ptr; + unsigned int virq; + unsigned long flags; - for_each_possible_cpu(i) { - memset((void *)softirq_ctx[i], 0, THREAD_SIZE); - tp = softirq_ctx[i]; - tp->cpu = i; - tp->preempt_count = SOFTIRQ_OFFSET; + WARN_ON(host->revmap_type != IRQ_HOST_MAP_TREE); - memset((void *)hardirq_ctx[i], 0, THREAD_SIZE); - tp = hardirq_ctx[i]; - tp->cpu = i; - tp->preempt_count = HARDIRQ_OFFSET; + /* Check if the radix tree exist yet. We test the value of + * the gfp_mask for that. Sneaky but saves another int in the + * structure. If not, we fallback to slow mode + */ + tree = &host->revmap_data.tree; + if (tree->gfp_mask == 0) + return irq_find_mapping(host, hwirq); + + /* XXX Current radix trees are NOT SMP safe !!! Remove that lock + * when that is fixed (when Nick's patch gets in + */ + spin_lock_irqsave(&irq_big_lock, flags); + + /* Now try to resolve */ + ptr = radix_tree_lookup(tree, hwirq); + /* Found it, return */ + if (ptr) { + virq = ptr - irq_map; + goto bail; } + + /* If not there, try to insert it */ + virq = irq_find_mapping(host, hwirq); + if (virq != NO_IRQ) + radix_tree_insert(tree, virq, &irq_map[virq]); + bail: + spin_unlock_irqrestore(&irq_big_lock, flags); + return virq; } -static inline void do_softirq_onstack(void) +unsigned int irq_linear_revmap(struct irq_host *host, + irq_hw_number_t hwirq) { - struct thread_info *curtp, *irqtp; + unsigned int *revmap; - curtp = current_thread_info(); - irqtp = softirq_ctx[smp_processor_id()]; - irqtp->task = curtp->task; - call_do_softirq(irqtp); - irqtp->task = NULL; + WARN_ON(host->revmap_type != IRQ_HOST_MAP_LINEAR); + + /* Check revmap bounds */ + if (unlikely(hwirq >= host->revmap_data.linear.size)) + return irq_find_mapping(host, hwirq); + + /* Check if revmap was allocated */ + revmap = host->revmap_data.linear.revmap; + if (unlikely(revmap == NULL)) + return irq_find_mapping(host, hwirq); + + /* Fill up revmap with slow path if no mapping found */ + if (unlikely(revmap[hwirq] == NO_IRQ)) + revmap[hwirq] = irq_find_mapping(host, hwirq); + + return revmap[hwirq]; } -#else -#define do_softirq_onstack() __do_softirq() -#endif /* CONFIG_IRQSTACKS */ +unsigned int irq_alloc_virt(struct irq_host *host, + unsigned int count, + unsigned int hint) +{ + unsigned long flags; + unsigned int i, j, found = NO_IRQ; + unsigned int limit = irq_virq_count - count; -void do_softirq(void) + if (count == 0 || count > (irq_virq_count - NUM_ISA_INTERRUPTS)) + return NO_IRQ; + + spin_lock_irqsave(&irq_big_lock, flags); + + /* Use hint for 1 interrupt if any */ + if (count == 1 && hint >= NUM_ISA_INTERRUPTS && + hint < irq_virq_count && irq_map[hint].host == NULL) { + found = hint; + goto hint_found; + } + + /* Look for count consecutive numbers in the allocatable + * (non-legacy) space + */ + for (i = NUM_ISA_INTERRUPTS; i <= limit; ) { + for (j = i; j < (i + count); j++) + if (irq_map[j].host != NULL) { + i = j + 1; + continue; + } + found = i; + break; + } + if (found == NO_IRQ) { + spin_unlock_irqrestore(&irq_big_lock, flags); + return NO_IRQ; + } + hint_found: + for (i = found; i < (found + count); i++) { + irq_map[i].hwirq = host->inval_irq; + smp_wmb(); + irq_map[i].host = host; + } + spin_unlock_irqrestore(&irq_big_lock, flags); + return found; +} + +void irq_free_virt(unsigned int virq, unsigned int count) { unsigned long flags; + unsigned int i; - if (in_interrupt()) - return; + WARN_ON (virq < NUM_ISA_INTERRUPTS); + WARN_ON (count == 0 || (virq + count) > irq_virq_count); - local_irq_save(flags); + spin_lock_irqsave(&irq_big_lock, flags); + for (i = virq; i < (virq + count); i++) { + struct irq_host *host; - if (local_softirq_pending()) - do_softirq_onstack(); + if (i < NUM_ISA_INTERRUPTS || + (virq + count) > irq_virq_count) + continue; - local_irq_restore(flags); + host = irq_map[i].host; + irq_map[i].hwirq = host->inval_irq; + smp_wmb(); + irq_map[i].host = NULL; + } + spin_unlock_irqrestore(&irq_big_lock, flags); } -EXPORT_SYMBOL(do_softirq); + +void irq_early_init(void) +{ + unsigned int i; + + for (i = 0; i < NR_IRQS; i++) + get_irq_desc(i)->status |= IRQ_NOREQUEST; +} + +/* We need to create the radix trees late */ +static int irq_late_init(void) +{ + struct irq_host *h; + unsigned long flags; + + spin_lock_irqsave(&irq_big_lock, flags); + list_for_each_entry(h, &irq_hosts, link) { + if (h->revmap_type == IRQ_HOST_MAP_TREE) + INIT_RADIX_TREE(&h->revmap_data.tree, GFP_ATOMIC); + } + spin_unlock_irqrestore(&irq_big_lock, flags); + + return 0; +} +arch_initcall(irq_late_init); + +#endif /* CONFIG_PPC_MERGE */ #ifdef CONFIG_PCI_MSI int pci_enable_msi(struct pci_dev * pdev) diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 4cf0b971976b..7e98e778b52f 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -28,6 +28,7 @@ static struct legacy_serial_info { struct device_node *np; unsigned int speed; unsigned int clock; + int irq_check_parent; phys_addr_t taddr; } legacy_serial_infos[MAX_LEGACY_SERIAL_PORTS]; static unsigned int legacy_serial_count; @@ -36,7 +37,7 @@ static int legacy_serial_console = -1; static int __init add_legacy_port(struct device_node *np, int want_index, int iotype, phys_addr_t base, phys_addr_t taddr, unsigned long irq, - upf_t flags) + upf_t flags, int irq_check_parent) { u32 *clk, *spd, clock = BASE_BAUD * 16; int index; @@ -68,7 +69,7 @@ static int __init add_legacy_port(struct device_node *np, int want_index, if (legacy_serial_infos[index].np != 0) { /* if we still have some room, move it, else override */ if (legacy_serial_count < MAX_LEGACY_SERIAL_PORTS) { - printk(KERN_INFO "Moved legacy port %d -> %d\n", + printk(KERN_DEBUG "Moved legacy port %d -> %d\n", index, legacy_serial_count); legacy_serial_ports[legacy_serial_count] = legacy_serial_ports[index]; @@ -76,7 +77,7 @@ static int __init add_legacy_port(struct device_node *np, int want_index, legacy_serial_infos[index]; legacy_serial_count++; } else { - printk(KERN_INFO "Replacing legacy port %d\n", index); + printk(KERN_DEBUG "Replacing legacy port %d\n", index); } } @@ -95,10 +96,11 @@ static int __init add_legacy_port(struct device_node *np, int want_index, legacy_serial_infos[index].np = of_node_get(np); legacy_serial_infos[index].clock = clock; legacy_serial_infos[index].speed = spd ? *spd : 0; + legacy_serial_infos[index].irq_check_parent = irq_check_parent; - printk(KERN_INFO "Found legacy serial port %d for %s\n", + printk(KERN_DEBUG "Found legacy serial port %d for %s\n", index, np->full_name); - printk(KERN_INFO " %s=%llx, taddr=%llx, irq=%lx, clk=%d, speed=%d\n", + printk(KERN_DEBUG " %s=%llx, taddr=%llx, irq=%lx, clk=%d, speed=%d\n", (iotype == UPIO_PORT) ? "port" : "mem", (unsigned long long)base, (unsigned long long)taddr, irq, legacy_serial_ports[index].uartclk, @@ -126,11 +128,13 @@ static int __init add_legacy_soc_port(struct device_node *np, return -1; addr = of_translate_address(soc_dev, addrp); + if (addr == OF_BAD_ADDR) + return -1; /* Add port, irq will be dealt with later. We passed a translated * IO port value. It will be fixed up later along with the irq */ - return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags); + return add_legacy_port(np, -1, UPIO_MEM, addr, addr, NO_IRQ, flags, 0); } static int __init add_legacy_isa_port(struct device_node *np, @@ -141,6 +145,8 @@ static int __init add_legacy_isa_port(struct device_node *np, int index = -1; phys_addr_t taddr; + DBG(" -> add_legacy_isa_port(%s)\n", np->full_name); + /* Get the ISA port number */ reg = (u32 *)get_property(np, "reg", NULL); if (reg == NULL) @@ -161,9 +167,12 @@ static int __init add_legacy_isa_port(struct device_node *np, /* Translate ISA address */ taddr = of_translate_address(np, reg); + if (taddr == OF_BAD_ADDR) + return -1; /* Add port, irq will be dealt with later */ - return add_legacy_port(np, index, UPIO_PORT, reg[1], taddr, NO_IRQ, UPF_BOOT_AUTOCONF); + return add_legacy_port(np, index, UPIO_PORT, reg[1], taddr, + NO_IRQ, UPF_BOOT_AUTOCONF, 0); } @@ -176,6 +185,8 @@ static int __init add_legacy_pci_port(struct device_node *np, unsigned int flags; int iotype, index = -1, lindex = 0; + DBG(" -> add_legacy_pci_port(%s)\n", np->full_name); + /* We only support ports that have a clock frequency properly * encoded in the device-tree (that is have an fcode). Anything * else can't be used that early and will be normally probed by @@ -194,6 +205,8 @@ static int __init add_legacy_pci_port(struct device_node *np, /* We only support BAR 0 for now */ iotype = (flags & IORESOURCE_MEM) ? UPIO_MEM : UPIO_PORT; addr = of_translate_address(pci_dev, addrp); + if (addr == OF_BAD_ADDR) + return -1; /* Set the IO base to the same as the translated address for MMIO, * or to the domain local IO base for PIO (it will be fixed up later) @@ -231,7 +244,8 @@ static int __init add_legacy_pci_port(struct device_node *np, /* Add port, irq will be dealt with later. We passed a translated * IO port value. It will be fixed up later along with the irq */ - return add_legacy_port(np, index, iotype, base, addr, NO_IRQ, UPF_BOOT_AUTOCONF); + return add_legacy_port(np, index, iotype, base, addr, NO_IRQ, + UPF_BOOT_AUTOCONF, np != pci_dev); } #endif @@ -362,27 +376,22 @@ static void __init fixup_port_irq(int index, struct device_node *np, struct plat_serial8250_port *port) { + unsigned int virq; + DBG("fixup_port_irq(%d)\n", index); - /* Check for interrupts in that node */ - if (np->n_intrs > 0) { - port->irq = np->intrs[0].line; - DBG(" port %d (%s), irq=%d\n", - index, np->full_name, port->irq); - return; + virq = irq_of_parse_and_map(np, 0); + if (virq == NO_IRQ && legacy_serial_infos[index].irq_check_parent) { + np = of_get_parent(np); + if (np == NULL) + return; + virq = irq_of_parse_and_map(np, 0); + of_node_put(np); } - - /* Check for interrupts in the parent */ - np = of_get_parent(np); - if (np == NULL) + if (virq == NO_IRQ) return; - if (np->n_intrs > 0) { - port->irq = np->intrs[0].line; - DBG(" port %d (%s), irq=%d\n", - index, np->full_name, port->irq); - } - of_node_put(np); + port->irq = virq; } static void __init fixup_port_pio(int index, diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index 0c3c70d115c6..bfb407fc1aa1 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -51,12 +51,14 @@ _GLOBAL(call_do_softirq) mtlr r0 blr -_GLOBAL(call___do_IRQ) +_GLOBAL(call_handle_irq) + ld r8,0(r7) mflr r0 std r0,16(r1) - stdu r1,THREAD_SIZE-112(r5) - mr r1,r5 - bl .__do_IRQ + mtctr r8 + stdu r1,THREAD_SIZE-112(r6) + mr r1,r6 + bctrl ld r1,0(r1) ld r0,16(r1) mtlr r0 diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 1333335c474e..898dae8ab6d9 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -1404,6 +1404,43 @@ pcibios_update_irq(struct pci_dev *dev, int irq) /* XXX FIXME - update OF device tree node interrupt property */ } +#ifdef CONFIG_PPC_MERGE +/* XXX This is a copy of the ppc64 version. This is temporary until we start + * merging the 2 PCI layers + */ +/* + * Reads the interrupt pin to determine if interrupt is use by card. + * If the interrupt is used, then gets the interrupt line from the + * openfirmware and sets it in the pci_dev and pci_config line. + */ +int pci_read_irq_line(struct pci_dev *pci_dev) +{ + struct of_irq oirq; + unsigned int virq; + + DBG("Try to map irq for %s...\n", pci_name(pci_dev)); + + if (of_irq_map_pci(pci_dev, &oirq)) { + DBG(" -> failed !\n"); + return -1; + } + + DBG(" -> got one, spec %d cells (0x%08x...) on %s\n", + oirq.size, oirq.specifier[0], oirq.controller->full_name); + + virq = irq_create_of_mapping(oirq.controller, oirq.specifier, oirq.size); + if(virq == NO_IRQ) { + DBG(" -> failed to map !\n"); + return -1; + } + pci_dev->irq = virq; + pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, virq); + + return 0; +} +EXPORT_SYMBOL(pci_read_irq_line); +#endif /* CONFIG_PPC_MERGE */ + int pcibios_enable_device(struct pci_dev *dev, int mask) { u16 cmd, old_cmd; diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index bea8451fb57b..efc0b5559ee0 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -398,12 +398,8 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, } else { dev->hdr_type = PCI_HEADER_TYPE_NORMAL; dev->rom_base_reg = PCI_ROM_ADDRESS; + /* Maybe do a default OF mapping here */ dev->irq = NO_IRQ; - if (node->n_intrs > 0) { - dev->irq = node->intrs[0].line; - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, - dev->irq); - } } pci_parse_of_addrs(node, dev); @@ -1288,23 +1284,26 @@ EXPORT_SYMBOL(pcibios_fixup_bus); */ int pci_read_irq_line(struct pci_dev *pci_dev) { - u8 intpin; - struct device_node *node; - - pci_read_config_byte(pci_dev, PCI_INTERRUPT_PIN, &intpin); - if (intpin == 0) - return 0; + struct of_irq oirq; + unsigned int virq; - node = pci_device_to_OF_node(pci_dev); - if (node == NULL) - return -1; + DBG("Try to map irq for %s...\n", pci_name(pci_dev)); - if (node->n_intrs == 0) + if (of_irq_map_pci(pci_dev, &oirq)) { + DBG(" -> failed !\n"); return -1; + } - pci_dev->irq = node->intrs[0].line; + DBG(" -> got one, spec %d cells (0x%08x...) on %s\n", + oirq.size, oirq.specifier[0], oirq.controller->full_name); - pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, pci_dev->irq); + virq = irq_create_of_mapping(oirq.controller, oirq.specifier, oirq.size); + if(virq == NO_IRQ) { + DBG(" -> failed to map !\n"); + return -1; + } + pci_dev->irq = virq; + pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, virq); return 0; } diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 4c524cb52184..a1787ffb6319 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -30,6 +30,7 @@ #include <linux/module.h> #include <linux/kexec.h> #include <linux/debugfs.h> +#include <linux/irq.h> #include <asm/prom.h> #include <asm/rtas.h> @@ -86,424 +87,6 @@ static DEFINE_RWLOCK(devtree_lock); /* export that to outside world */ struct device_node *of_chosen; -struct device_node *dflt_interrupt_controller; -int num_interrupt_controllers; - -/* - * Wrapper for allocating memory for various data that needs to be - * attached to device nodes as they are processed at boot or when - * added to the device tree later (e.g. DLPAR). At boot there is - * already a region reserved so we just increment *mem_start by size; - * otherwise we call kmalloc. - */ -static void * prom_alloc(unsigned long size, unsigned long *mem_start) -{ - unsigned long tmp; - - if (!mem_start) - return kmalloc(size, GFP_KERNEL); - - tmp = *mem_start; - *mem_start += size; - return (void *)tmp; -} - -/* - * Find the device_node with a given phandle. - */ -static struct device_node * find_phandle(phandle ph) -{ - struct device_node *np; - - for (np = allnodes; np != 0; np = np->allnext) - if (np->linux_phandle == ph) - return np; - return NULL; -} - -/* - * Find the interrupt parent of a node. - */ -static struct device_node * __devinit intr_parent(struct device_node *p) -{ - phandle *parp; - - parp = (phandle *) get_property(p, "interrupt-parent", NULL); - if (parp == NULL) - return p->parent; - p = find_phandle(*parp); - if (p != NULL) - return p; - /* - * On a powermac booted with BootX, we don't get to know the - * phandles for any nodes, so find_phandle will return NULL. - * Fortunately these machines only have one interrupt controller - * so there isn't in fact any ambiguity. -- paulus - */ - if (num_interrupt_controllers == 1) - p = dflt_interrupt_controller; - return p; -} - -/* - * Find out the size of each entry of the interrupts property - * for a node. - */ -int __devinit prom_n_intr_cells(struct device_node *np) -{ - struct device_node *p; - unsigned int *icp; - - for (p = np; (p = intr_parent(p)) != NULL; ) { - icp = (unsigned int *) - get_property(p, "#interrupt-cells", NULL); - if (icp != NULL) - return *icp; - if (get_property(p, "interrupt-controller", NULL) != NULL - || get_property(p, "interrupt-map", NULL) != NULL) { - printk("oops, node %s doesn't have #interrupt-cells\n", - p->full_name); - return 1; - } - } -#ifdef DEBUG_IRQ - printk("prom_n_intr_cells failed for %s\n", np->full_name); -#endif - return 1; -} - -/* - * Map an interrupt from a device up to the platform interrupt - * descriptor. - */ -static int __devinit map_interrupt(unsigned int **irq, struct device_node **ictrler, - struct device_node *np, unsigned int *ints, - int nintrc) -{ - struct device_node *p, *ipar; - unsigned int *imap, *imask, *ip; - int i, imaplen, match; - int newintrc = 0, newaddrc = 0; - unsigned int *reg; - int naddrc; - - reg = (unsigned int *) get_property(np, "reg", NULL); - naddrc = prom_n_addr_cells(np); - p = intr_parent(np); - while (p != NULL) { - if (get_property(p, "interrupt-controller", NULL) != NULL) - /* this node is an interrupt controller, stop here */ - break; - imap = (unsigned int *) - get_property(p, "interrupt-map", &imaplen); - if (imap == NULL) { - p = intr_parent(p); - continue; - } - imask = (unsigned int *) - get_property(p, "interrupt-map-mask", NULL); - if (imask == NULL) { - printk("oops, %s has interrupt-map but no mask\n", - p->full_name); - return 0; - } - imaplen /= sizeof(unsigned int); - match = 0; - ipar = NULL; - while (imaplen > 0 && !match) { - /* check the child-interrupt field */ - match = 1; - for (i = 0; i < naddrc && match; ++i) - match = ((reg[i] ^ imap[i]) & imask[i]) == 0; - for (; i < naddrc + nintrc && match; ++i) - match = ((ints[i-naddrc] ^ imap[i]) & imask[i]) == 0; - imap += naddrc + nintrc; - imaplen -= naddrc + nintrc; - /* grab the interrupt parent */ - ipar = find_phandle((phandle) *imap++); - --imaplen; - if (ipar == NULL && num_interrupt_controllers == 1) - /* cope with BootX not giving us phandles */ - ipar = dflt_interrupt_controller; - if (ipar == NULL) { - printk("oops, no int parent %x in map of %s\n", - imap[-1], p->full_name); - return 0; - } - /* find the parent's # addr and intr cells */ - ip = (unsigned int *) - get_property(ipar, "#interrupt-cells", NULL); - if (ip == NULL) { - printk("oops, no #interrupt-cells on %s\n", - ipar->full_name); - return 0; - } - newintrc = *ip; - ip = (unsigned int *) - get_property(ipar, "#address-cells", NULL); - newaddrc = (ip == NULL)? 0: *ip; - imap += newaddrc + newintrc; - imaplen -= newaddrc + newintrc; - } - if (imaplen < 0) { - printk("oops, error decoding int-map on %s, len=%d\n", - p->full_name, imaplen); - return 0; - } - if (!match) { -#ifdef DEBUG_IRQ - printk("oops, no match in %s int-map for %s\n", - p->full_name, np->full_name); -#endif - return 0; - } - p = ipar; - naddrc = newaddrc; - nintrc = newintrc; - ints = imap - nintrc; - reg = ints - naddrc; - } - if (p == NULL) { -#ifdef DEBUG_IRQ - printk("hmmm, int tree for %s doesn't have ctrler\n", - np->full_name); -#endif - return 0; - } - *irq = ints; - *ictrler = p; - return nintrc; -} - -static unsigned char map_isa_senses[4] = { - IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE, - IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE, - IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE, - IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE -}; - -static unsigned char map_mpic_senses[4] = { - IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE, - IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE, - /* 2 seems to be used for the 8259 cascade... */ - IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE, - IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE, -}; - -static int __devinit finish_node_interrupts(struct device_node *np, - unsigned long *mem_start, - int measure_only) -{ - unsigned int *ints; - int intlen, intrcells, intrcount; - int i, j, n, sense; - unsigned int *irq, virq; - struct device_node *ic; - int trace = 0; - - //#define TRACE(fmt...) do { if (trace) { printk(fmt); mdelay(1000); } } while(0) -#define TRACE(fmt...) - - if (!strcmp(np->name, "smu-doorbell")) - trace = 1; - - TRACE("Finishing SMU doorbell ! num_interrupt_controllers = %d\n", - num_interrupt_controllers); - - if (num_interrupt_controllers == 0) { - /* - * Old machines just have a list of interrupt numbers - * and no interrupt-controller nodes. - */ - ints = (unsigned int *) get_property(np, "AAPL,interrupts", - &intlen); - /* XXX old interpret_pci_props looked in parent too */ - /* XXX old interpret_macio_props looked for interrupts - before AAPL,interrupts */ - if (ints == NULL) - ints = (unsigned int *) get_property(np, "interrupts", - &intlen); - if (ints == NULL) - return 0; - - np->n_intrs = intlen / sizeof(unsigned int); - np->intrs = prom_alloc(np->n_intrs * sizeof(np->intrs[0]), - mem_start); - if (!np->intrs) - return -ENOMEM; - if (measure_only) - return 0; - - for (i = 0; i < np->n_intrs; ++i) { - np->intrs[i].line = *ints++; - np->intrs[i].sense = IRQ_SENSE_LEVEL - | IRQ_POLARITY_NEGATIVE; - } - return 0; - } - - ints = (unsigned int *) get_property(np, "interrupts", &intlen); - TRACE("ints=%p, intlen=%d\n", ints, intlen); - if (ints == NULL) - return 0; - intrcells = prom_n_intr_cells(np); - intlen /= intrcells * sizeof(unsigned int); - TRACE("intrcells=%d, new intlen=%d\n", intrcells, intlen); - np->intrs = prom_alloc(intlen * sizeof(*(np->intrs)), mem_start); - if (!np->intrs) - return -ENOMEM; - - if (measure_only) - return 0; - - intrcount = 0; - for (i = 0; i < intlen; ++i, ints += intrcells) { - n = map_interrupt(&irq, &ic, np, ints, intrcells); - TRACE("map, irq=%d, ic=%p, n=%d\n", irq, ic, n); - if (n <= 0) - continue; - - /* don't map IRQ numbers under a cascaded 8259 controller */ - if (ic && device_is_compatible(ic, "chrp,iic")) { - np->intrs[intrcount].line = irq[0]; - sense = (n > 1)? (irq[1] & 3): 3; - np->intrs[intrcount].sense = map_isa_senses[sense]; - } else { - virq = virt_irq_create_mapping(irq[0]); - TRACE("virq=%d\n", virq); -#ifdef CONFIG_PPC64 - if (virq == NO_IRQ) { - printk(KERN_CRIT "Could not allocate interrupt" - " number for %s\n", np->full_name); - continue; - } -#endif - np->intrs[intrcount].line = irq_offset_up(virq); - sense = (n > 1)? (irq[1] & 3): 1; - - /* Apple uses bits in there in a different way, let's - * only keep the real sense bit on macs - */ - if (machine_is(powermac)) - sense &= 0x1; - np->intrs[intrcount].sense = map_mpic_senses[sense]; - } - -#ifdef CONFIG_PPC64 - /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */ - if (machine_is(powermac) && ic && ic->parent) { - char *name = get_property(ic->parent, "name", NULL); - if (name && !strcmp(name, "u3")) - np->intrs[intrcount].line += 128; - else if (!(name && (!strcmp(name, "mac-io") || - !strcmp(name, "u4")))) - /* ignore other cascaded controllers, such as - the k2-sata-root */ - break; - } -#endif /* CONFIG_PPC64 */ - if (n > 2) { - printk("hmmm, got %d intr cells for %s:", n, - np->full_name); - for (j = 0; j < n; ++j) - printk(" %d", irq[j]); - printk("\n"); - } - ++intrcount; - } - np->n_intrs = intrcount; - - return 0; -} - -static int __devinit finish_node(struct device_node *np, - unsigned long *mem_start, - int measure_only) -{ - struct device_node *child; - int rc = 0; - - rc = finish_node_interrupts(np, mem_start, measure_only); - if (rc) - goto out; - - for (child = np->child; child != NULL; child = child->sibling) { - rc = finish_node(child, mem_start, measure_only); - if (rc) - goto out; - } -out: - return rc; -} - -static void __init scan_interrupt_controllers(void) -{ - struct device_node *np; - int n = 0; - char *name, *ic; - int iclen; - - for (np = allnodes; np != NULL; np = np->allnext) { - ic = get_property(np, "interrupt-controller", &iclen); - name = get_property(np, "name", NULL); - /* checking iclen makes sure we don't get a false - match on /chosen.interrupt_controller */ - if ((name != NULL - && strcmp(name, "interrupt-controller") == 0) - || (ic != NULL && iclen == 0 - && strcmp(name, "AppleKiwi"))) { - if (n == 0) - dflt_interrupt_controller = np; - ++n; - } - } - num_interrupt_controllers = n; -} - -/** - * finish_device_tree is called once things are running normally - * (i.e. with text and data mapped to the address they were linked at). - * It traverses the device tree and fills in some of the additional, - * fields in each node like {n_}addrs and {n_}intrs, the virt interrupt - * mapping is also initialized at this point. - */ -void __init finish_device_tree(void) -{ - unsigned long start, end, size = 0; - - DBG(" -> finish_device_tree\n"); - -#ifdef CONFIG_PPC64 - /* Initialize virtual IRQ map */ - virt_irq_init(); -#endif - scan_interrupt_controllers(); - - /* - * Finish device-tree (pre-parsing some properties etc...) - * We do this in 2 passes. One with "measure_only" set, which - * will only measure the amount of memory needed, then we can - * allocate that memory, and call finish_node again. However, - * we must be careful as most routines will fail nowadays when - * prom_alloc() returns 0, so we must make sure our first pass - * doesn't start at 0. We pre-initialize size to 16 for that - * reason and then remove those additional 16 bytes - */ - size = 16; - finish_node(allnodes, &size, 1); - size -= 16; - - if (0 == size) - end = start = 0; - else - end = start = (unsigned long)__va(lmb_alloc(size, 128)); - - finish_node(allnodes, &end, 0); - BUG_ON(end != start + size); - - DBG(" <- finish_device_tree\n"); -} - static inline char *find_flat_dt_string(u32 offset) { return ((char *)initial_boot_params) + @@ -1389,27 +972,6 @@ prom_n_size_cells(struct device_node* np) EXPORT_SYMBOL(prom_n_size_cells); /** - * Work out the sense (active-low level / active-high edge) - * of each interrupt from the device tree. - */ -void __init prom_get_irq_senses(unsigned char *senses, int off, int max) -{ - struct device_node *np; - int i, j; - - /* default to level-triggered */ - memset(senses, IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE, max - off); - - for (np = allnodes; np != 0; np = np->allnext) { - for (j = 0; j < np->n_intrs; j++) { - i = np->intrs[j].line; - if (i >= off && i < max) - senses[i-off] = np->intrs[j].sense; - } - } -} - -/** * Construct and return a list of the device_nodes with a given name. */ struct device_node *find_devices(const char *name) @@ -1808,7 +1370,6 @@ static void of_node_release(struct kref *kref) node->deadprops = NULL; } } - kfree(node->intrs); kfree(node->full_name); kfree(node->data); kfree(node); @@ -1881,13 +1442,7 @@ void of_detach_node(const struct device_node *np) #ifdef CONFIG_PPC_PSERIES /* * Fix up the uninitialized fields in a new device node: - * name, type, n_addrs, addrs, n_intrs, intrs, and pci-specific fields - * - * A lot of boot-time code is duplicated here, because functions such - * as finish_node_interrupts, interpret_pci_props, etc. cannot use the - * slab allocator. - * - * This should probably be split up into smaller chunks. + * name, type and pci-specific fields */ static int of_finish_dynamic_node(struct device_node *node) @@ -1928,8 +1483,6 @@ static int prom_reconfig_notifier(struct notifier_block *nb, switch (action) { case PSERIES_RECONFIG_ADD: err = of_finish_dynamic_node(node); - if (!err) - finish_node(node, NULL, 0); if (err < 0) { printk(KERN_ERR "finish_node returned %d\n", err); err = NOTIFY_BAD; @@ -1975,8 +1528,7 @@ struct property *of_find_property(struct device_node *np, const char *name, * Find a property with a given name for a given node * and return the value. */ -unsigned char *get_property(struct device_node *np, const char *name, - int *lenp) +void *get_property(struct device_node *np, const char *name, int *lenp) { struct property *pp = of_find_property(np,name,lenp); return pp ? pp->value : NULL; diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 1e95a9f8cda1..ebd501a59abd 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -1990,12 +1990,22 @@ static void __init flatten_device_tree(void) static void __init fixup_device_tree_maple(void) { phandle isa; + u32 rloc = 0x01002000; /* IO space; PCI device = 4 */ u32 isa_ranges[6]; - - isa = call_prom("finddevice", 1, 1, ADDR("/ht@0/isa@4")); + char *name; + + name = "/ht@0/isa@4"; + isa = call_prom("finddevice", 1, 1, ADDR(name)); + if (!PHANDLE_VALID(isa)) { + name = "/ht@0/isa@6"; + isa = call_prom("finddevice", 1, 1, ADDR(name)); + rloc = 0x01003000; /* IO space; PCI device = 6 */ + } if (!PHANDLE_VALID(isa)) return; + if (prom_getproplen(isa, "ranges") != 12) + return; if (prom_getprop(isa, "ranges", isa_ranges, sizeof(isa_ranges)) == PROM_ERROR) return; @@ -2005,15 +2015,15 @@ static void __init fixup_device_tree_maple(void) isa_ranges[2] != 0x00010000) return; - prom_printf("fixing up bogus ISA range on Maple...\n"); + prom_printf("Fixing up bogus ISA range on Maple/Apache...\n"); isa_ranges[0] = 0x1; isa_ranges[1] = 0x0; - isa_ranges[2] = 0x01002000; /* IO space; PCI device = 4 */ + isa_ranges[2] = rloc; isa_ranges[3] = 0x0; isa_ranges[4] = 0x0; isa_ranges[5] = 0x00010000; - prom_setprop(isa, "/ht@0/isa@4", "ranges", + prom_setprop(isa, name, "ranges", isa_ranges, sizeof(isa_ranges)); } #else diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index 45df420383cc..21009b1f7869 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -38,14 +38,6 @@ static void of_dump_addr(const char *s, u32 *addr, int na) static void of_dump_addr(const char *s, u32 *addr, int na) { } #endif -/* Read a big address */ -static inline u64 of_read_addr(u32 *cell, int size) -{ - u64 r = 0; - while (size--) - r = (r << 32) | *(cell++); - return r; -} /* Callbacks for bus specific translators */ struct of_bus { @@ -77,9 +69,9 @@ static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna) { u64 cp, s, da; - cp = of_read_addr(range, na); - s = of_read_addr(range + na + pna, ns); - da = of_read_addr(addr, na); + cp = of_read_number(range, na); + s = of_read_number(range + na + pna, ns); + da = of_read_number(addr, na); DBG("OF: default map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da); @@ -91,7 +83,7 @@ static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna) static int of_bus_default_translate(u32 *addr, u64 offset, int na) { - u64 a = of_read_addr(addr, na); + u64 a = of_read_number(addr, na); memset(addr, 0, na * 4); a += offset; if (na > 1) @@ -135,9 +127,9 @@ static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna) return OF_BAD_ADDR; /* Read address values, skipping high cell */ - cp = of_read_addr(range + 1, na - 1); - s = of_read_addr(range + na + pna, ns); - da = of_read_addr(addr + 1, na - 1); + cp = of_read_number(range + 1, na - 1); + s = of_read_number(range + na + pna, ns); + da = of_read_number(addr + 1, na - 1); DBG("OF: PCI map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da); @@ -195,9 +187,9 @@ static u64 of_bus_isa_map(u32 *addr, u32 *range, int na, int ns, int pna) return OF_BAD_ADDR; /* Read address values, skipping high cell */ - cp = of_read_addr(range + 1, na - 1); - s = of_read_addr(range + na + pna, ns); - da = of_read_addr(addr + 1, na - 1); + cp = of_read_number(range + 1, na - 1); + s = of_read_number(range + na + pna, ns); + da = of_read_number(addr + 1, na - 1); DBG("OF: ISA map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da); @@ -295,7 +287,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus, */ ranges = (u32 *)get_property(parent, "ranges", &rlen); if (ranges == NULL || rlen == 0) { - offset = of_read_addr(addr, na); + offset = of_read_number(addr, na); memset(addr, 0, pna * 4); DBG("OF: no ranges, 1:1 translation\n"); goto finish; @@ -378,7 +370,7 @@ u64 of_translate_address(struct device_node *dev, u32 *in_addr) /* If root, we have finished */ if (parent == NULL) { DBG("OF: reached root node\n"); - result = of_read_addr(addr, na); + result = of_read_number(addr, na); break; } @@ -442,7 +434,7 @@ u32 *of_get_address(struct device_node *dev, int index, u64 *size, for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++) if (i == index) { if (size) - *size = of_read_addr(prop + na, ns); + *size = of_read_number(prop + na, ns); if (flags) *flags = bus->get_flags(prop); return prop; @@ -484,7 +476,7 @@ u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++) if ((prop[0] & 0xff) == ((bar_no * 4) + PCI_BASE_ADDRESS_0)) { if (size) - *size = of_read_addr(prop + na, ns); + *size = of_read_number(prop + na, ns); if (flags) *flags = bus->get_flags(prop); return prop; @@ -565,11 +557,414 @@ void of_parse_dma_window(struct device_node *dn, unsigned char *dma_window_prop, prop = get_property(dn, "#address-cells", NULL); cells = prop ? *(u32 *)prop : prom_n_addr_cells(dn); - *phys = of_read_addr(dma_window, cells); + *phys = of_read_number(dma_window, cells); dma_window += cells; prop = get_property(dn, "ibm,#dma-size-cells", NULL); cells = prop ? *(u32 *)prop : prom_n_size_cells(dn); - *size = of_read_addr(dma_window, cells); + *size = of_read_number(dma_window, cells); +} + +/* + * Interrupt remapper + */ + +static unsigned int of_irq_workarounds; +static struct device_node *of_irq_dflt_pic; + +static struct device_node *of_irq_find_parent(struct device_node *child) +{ + struct device_node *p; + phandle *parp; + + if (!of_node_get(child)) + return NULL; + + do { + parp = (phandle *)get_property(child, "interrupt-parent", NULL); + if (parp == NULL) + p = of_get_parent(child); + else { + if (of_irq_workarounds & OF_IMAP_NO_PHANDLE) + p = of_node_get(of_irq_dflt_pic); + else + p = of_find_node_by_phandle(*parp); + } + of_node_put(child); + child = p; + } while (p && get_property(p, "#interrupt-cells", NULL) == NULL); + + return p; +} + +static u8 of_irq_pci_swizzle(u8 slot, u8 pin) +{ + return (((pin - 1) + slot) % 4) + 1; } + +/* This doesn't need to be called if you don't have any special workaround + * flags to pass + */ +void of_irq_map_init(unsigned int flags) +{ + of_irq_workarounds = flags; + + /* OldWorld, don't bother looking at other things */ + if (flags & OF_IMAP_OLDWORLD_MAC) + return; + + /* If we don't have phandles, let's try to locate a default interrupt + * controller (happens when booting with BootX). We do a first match + * here, hopefully, that only ever happens on machines with one + * controller. + */ + if (flags & OF_IMAP_NO_PHANDLE) { + struct device_node *np; + + for(np = NULL; (np = of_find_all_nodes(np)) != NULL;) { + if (get_property(np, "interrupt-controller", NULL) + == NULL) + continue; + /* Skip /chosen/interrupt-controller */ + if (strcmp(np->name, "chosen") == 0) + continue; + /* It seems like at least one person on this planet wants + * to use BootX on a machine with an AppleKiwi controller + * which happens to pretend to be an interrupt + * controller too. + */ + if (strcmp(np->name, "AppleKiwi") == 0) + continue; + /* I think we found one ! */ + of_irq_dflt_pic = np; + break; + } + } + +} + +int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr, + struct of_irq *out_irq) +{ + struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL; + u32 *tmp, *imap, *imask; + u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0; + int imaplen, match, i; + + ipar = of_node_get(parent); + + /* First get the #interrupt-cells property of the current cursor + * that tells us how to interpret the passed-in intspec. If there + * is none, we are nice and just walk up the tree + */ + do { + tmp = (u32 *)get_property(ipar, "#interrupt-cells", NULL); + if (tmp != NULL) { + intsize = *tmp; + break; + } + tnode = ipar; + ipar = of_irq_find_parent(ipar); + of_node_put(tnode); + } while (ipar); + if (ipar == NULL) { + DBG(" -> no parent found !\n"); + goto fail; + } + + DBG("of_irq_map_raw: ipar=%s, size=%d\n", ipar->full_name, intsize); + + /* Look for this #address-cells. We have to implement the old linux + * trick of looking for the parent here as some device-trees rely on it + */ + old = of_node_get(ipar); + do { + tmp = (u32 *)get_property(old, "#address-cells", NULL); + tnode = of_get_parent(old); + of_node_put(old); + old = tnode; + } while(old && tmp == NULL); + of_node_put(old); + old = NULL; + addrsize = (tmp == NULL) ? 2 : *tmp; + + DBG(" -> addrsize=%d\n", addrsize); + + /* Now start the actual "proper" walk of the interrupt tree */ + while (ipar != NULL) { + /* Now check if cursor is an interrupt-controller and if it is + * then we are done + */ + if (get_property(ipar, "interrupt-controller", NULL) != NULL) { + DBG(" -> got it !\n"); + memcpy(out_irq->specifier, intspec, + intsize * sizeof(u32)); + out_irq->size = intsize; + out_irq->controller = ipar; + of_node_put(old); + return 0; + } + + /* Now look for an interrupt-map */ + imap = (u32 *)get_property(ipar, "interrupt-map", &imaplen); + /* No interrupt map, check for an interrupt parent */ + if (imap == NULL) { + DBG(" -> no map, getting parent\n"); + newpar = of_irq_find_parent(ipar); + goto skiplevel; + } + imaplen /= sizeof(u32); + + /* Look for a mask */ + imask = (u32 *)get_property(ipar, "interrupt-map-mask", NULL); + + /* If we were passed no "reg" property and we attempt to parse + * an interrupt-map, then #address-cells must be 0. + * Fail if it's not. + */ + if (addr == NULL && addrsize != 0) { + DBG(" -> no reg passed in when needed !\n"); + goto fail; + } + + /* Parse interrupt-map */ + match = 0; + while (imaplen > (addrsize + intsize + 1) && !match) { + /* Compare specifiers */ + match = 1; + for (i = 0; i < addrsize && match; ++i) { + u32 mask = imask ? imask[i] : 0xffffffffu; + match = ((addr[i] ^ imap[i]) & mask) == 0; + } + for (; i < (addrsize + intsize) && match; ++i) { + u32 mask = imask ? imask[i] : 0xffffffffu; + match = + ((intspec[i-addrsize] ^ imap[i]) & mask) == 0; + } + imap += addrsize + intsize; + imaplen -= addrsize + intsize; + + DBG(" -> match=%d (imaplen=%d)\n", match, imaplen); + + /* Get the interrupt parent */ + if (of_irq_workarounds & OF_IMAP_NO_PHANDLE) + newpar = of_node_get(of_irq_dflt_pic); + else + newpar = of_find_node_by_phandle((phandle)*imap); + imap++; + --imaplen; + + /* Check if not found */ + if (newpar == NULL) { + DBG(" -> imap parent not found !\n"); + goto fail; + } + + /* Get #interrupt-cells and #address-cells of new + * parent + */ + tmp = (u32 *)get_property(newpar, "#interrupt-cells", + NULL); + if (tmp == NULL) { + DBG(" -> parent lacks #interrupt-cells !\n"); + goto fail; + } + newintsize = *tmp; + tmp = (u32 *)get_property(newpar, "#address-cells", + NULL); + newaddrsize = (tmp == NULL) ? 0 : *tmp; + + DBG(" -> newintsize=%d, newaddrsize=%d\n", + newintsize, newaddrsize); + + /* Check for malformed properties */ + if (imaplen < (newaddrsize + newintsize)) + goto fail; + + imap += newaddrsize + newintsize; + imaplen -= newaddrsize + newintsize; + + DBG(" -> imaplen=%d\n", imaplen); + } + if (!match) + goto fail; + + of_node_put(old); + old = of_node_get(newpar); + addrsize = newaddrsize; + intsize = newintsize; + intspec = imap - intsize; + addr = intspec - addrsize; + + skiplevel: + /* Iterate again with new parent */ + DBG(" -> new parent: %s\n", newpar ? newpar->full_name : "<>"); + of_node_put(ipar); + ipar = newpar; + newpar = NULL; + } + fail: + of_node_put(ipar); + of_node_put(old); + of_node_put(newpar); + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(of_irq_map_raw); + +#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) +static int of_irq_map_oldworld(struct device_node *device, int index, + struct of_irq *out_irq) +{ + u32 *ints; + int intlen; + + /* + * Old machines just have a list of interrupt numbers + * and no interrupt-controller nodes. + */ + ints = (u32 *) get_property(device, "AAPL,interrupts", &intlen); + if (ints == NULL) + return -EINVAL; + intlen /= sizeof(u32); + + if (index >= intlen) + return -EINVAL; + + out_irq->controller = NULL; + out_irq->specifier[0] = ints[index]; + out_irq->size = 1; + + return 0; +} +#else /* defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32) */ +static int of_irq_map_oldworld(struct device_node *device, int index, + struct of_irq *out_irq) +{ + return -EINVAL; +} +#endif /* !(defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32)) */ + +int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq) +{ + struct device_node *p; + u32 *intspec, *tmp, intsize, intlen, *addr; + int res; + + DBG("of_irq_map_one: dev=%s, index=%d\n", device->full_name, index); + + /* OldWorld mac stuff is "special", handle out of line */ + if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC) + return of_irq_map_oldworld(device, index, out_irq); + + /* Get the interrupts property */ + intspec = (u32 *)get_property(device, "interrupts", &intlen); + if (intspec == NULL) + return -EINVAL; + intlen /= sizeof(u32); + + /* Get the reg property (if any) */ + addr = (u32 *)get_property(device, "reg", NULL); + + /* Look for the interrupt parent. */ + p = of_irq_find_parent(device); + if (p == NULL) + return -EINVAL; + + /* Get size of interrupt specifier */ + tmp = (u32 *)get_property(p, "#interrupt-cells", NULL); + if (tmp == NULL) { + of_node_put(p); + return -EINVAL; + } + intsize = *tmp; + + /* Check index */ + if (index * intsize >= intlen) + return -EINVAL; + + /* Get new specifier and map it */ + res = of_irq_map_raw(p, intspec + index * intsize, addr, out_irq); + of_node_put(p); + return res; +} +EXPORT_SYMBOL_GPL(of_irq_map_one); + +int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq) +{ + struct device_node *dn, *ppnode; + struct pci_dev *ppdev; + u32 lspec; + u32 laddr[3]; + u8 pin; + int rc; + + /* Check if we have a device node, if yes, fallback to standard OF + * parsing + */ + dn = pci_device_to_OF_node(pdev); + if (dn) + return of_irq_map_one(dn, 0, out_irq); + + /* Ok, we don't, time to have fun. Let's start by building up an + * interrupt spec. we assume #interrupt-cells is 1, which is standard + * for PCI. If you do different, then don't use that routine. + */ + rc = pci_read_config_byte(pdev, PCI_INTERRUPT_PIN, &pin); + if (rc != 0) + return rc; + /* No pin, exit */ + if (pin == 0) + return -ENODEV; + + /* Now we walk up the PCI tree */ + lspec = pin; + for (;;) { + /* Get the pci_dev of our parent */ + ppdev = pdev->bus->self; + + /* Ouch, it's a host bridge... */ + if (ppdev == NULL) { +#ifdef CONFIG_PPC64 + ppnode = pci_bus_to_OF_node(pdev->bus); +#else + struct pci_controller *host; + host = pci_bus_to_host(pdev->bus); + ppnode = host ? host->arch_data : NULL; +#endif + /* No node for host bridge ? give up */ + if (ppnode == NULL) + return -EINVAL; + } else + /* We found a P2P bridge, check if it has a node */ + ppnode = pci_device_to_OF_node(ppdev); + + /* Ok, we have found a parent with a device-node, hand over to + * the OF parsing code. + * We build a unit address from the linux device to be used for + * resolution. Note that we use the linux bus number which may + * not match your firmware bus numbering. + * Fortunately, in most cases, interrupt-map-mask doesn't include + * the bus number as part of the matching. + * You should still be careful about that though if you intend + * to rely on this function (you ship a firmware that doesn't + * create device nodes for all PCI devices). + */ + if (ppnode) + break; + + /* We can only get here if we hit a P2P bridge with no node, + * let's do standard swizzling and try again + */ + lspec = of_irq_pci_swizzle(PCI_SLOT(pdev->devfn), lspec); + pdev = ppdev; + } + + laddr[0] = (pdev->bus->number << 16) + | (pdev->devfn << 8); + laddr[1] = laddr[2] = 0; + return of_irq_map_raw(ppnode, &lspec, laddr, out_irq); +} +EXPORT_SYMBOL_GPL(of_irq_map_pci); + diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index 6eb7e49b394a..cda022657324 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -297,19 +297,9 @@ unsigned long __init find_and_init_phbs(void) struct device_node *node; struct pci_controller *phb; unsigned int index; - unsigned int root_size_cells = 0; - unsigned int *opprop = NULL; struct device_node *root = of_find_node_by_path("/"); - if (ppc64_interrupt_controller == IC_OPEN_PIC) { - opprop = (unsigned int *)get_property(root, - "platform-open-pic", NULL); - } - - root_size_cells = prom_n_size_cells(root); - index = 0; - for (node = of_get_next_child(root, NULL); node != NULL; node = of_get_next_child(root, node)) { @@ -324,13 +314,6 @@ unsigned long __init find_and_init_phbs(void) setup_phb(node, phb); pci_process_bridge_OF_ranges(phb, node, 0); pci_setup_phb_io(phb, index == 0); -#ifdef CONFIG_PPC_PSERIES - /* XXX This code need serious fixing ... --BenH */ - if (ppc64_interrupt_controller == IC_OPEN_PIC && pSeries_mpic) { - int addr = root_size_cells * (index + 2) - 1; - mpic_assign_isu(pSeries_mpic, index, opprop[addr]); - } -#endif index++; } diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index ba7cd50d820d..e0df2ba1ab9f 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -51,7 +51,6 @@ extern void bootx_init(unsigned long r4, unsigned long phys); -boot_infos_t *boot_infos; struct ide_machdep_calls ppc_ide_md; int boot_cpuid; @@ -240,7 +239,6 @@ void __init setup_arch(char **cmdline_p) ppc_md.init_early(); find_legacy_serial_ports(); - finish_device_tree(); smp_setup_cpu_maps(); diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index ac7276c40685..fd1785e4c9bb 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -361,12 +361,15 @@ void __init setup_system(void) /* * Fill the ppc64_caches & systemcfg structures with informations - * retrieved from the device-tree. Need to be called before - * finish_device_tree() since the later requires some of the - * informations filled up here to properly parse the interrupt tree. + * retrieved from the device-tree. */ initialize_cache_info(); + /* + * Initialize irq remapping subsystem + */ + irq_early_init(); + #ifdef CONFIG_PPC_RTAS /* * Initialize RTAS if available @@ -394,12 +397,6 @@ void __init setup_system(void) find_legacy_serial_ports(); /* - * "Finish" the device-tree, that is do the actual parsing of - * some of the properties like the interrupt map - */ - finish_device_tree(); - - /* * Initialize xmon */ #ifdef CONFIG_XMON_DEFAULT @@ -427,8 +424,6 @@ void __init setup_system(void) printk("-----------------------------------------------------\n"); printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size); - printk("ppc64_interrupt_controller = 0x%ld\n", - ppc64_interrupt_controller); printk("physicalMemorySize = 0x%lx\n", lmb_phys_mem_size()); printk("ppc64_caches.dcache_line_size = 0x%x\n", ppc64_caches.dline_size); diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index cdf5867838a6..fad8580f9081 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -218,7 +218,6 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) { struct vio_dev *viodev; unsigned int *unit_address; - unsigned int *irq_p; /* we need the 'device_type' property, in order to match with drivers */ if (of_node->type == NULL) { @@ -243,16 +242,7 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) viodev->dev.platform_data = of_node_get(of_node); - viodev->irq = NO_IRQ; - irq_p = (unsigned int *)get_property(of_node, "interrupts", NULL); - if (irq_p) { - int virq = virt_irq_create_mapping(*irq_p); - if (virq == NO_IRQ) { - printk(KERN_ERR "Unable to allocate interrupt " - "number for %s\n", of_node->full_name); - } else - viodev->irq = irq_offset_up(virq); - } + viodev->irq = irq_of_parse_and_map(of_node, 0); snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%x", *unit_address); viodev->name = of_node->name; diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig index 7675e675dce1..5fe7b7faf45f 100644 --- a/arch/powerpc/platforms/83xx/Kconfig +++ b/arch/powerpc/platforms/83xx/Kconfig @@ -16,12 +16,21 @@ config MPC834x_SYS 3 PCI slots. The PIBs PCI initialization is the bootloader's responsiblilty. +config MPC834x_ITX + bool "Freescale MPC834x ITX" + select DEFAULT_UIMAGE + help + This option enables support for the MPC 834x ITX evaluation board. + + Be aware that PCI initialization is the bootloader's + responsiblilty. + endchoice config MPC834x bool select PPC_UDBG_16550 select PPC_INDIRECT_PCI - default y if MPC834x_SYS + default y if MPC834x_SYS || MPC834x_ITX endmenu diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile index 5c72367441a8..9387a110d28a 100644 --- a/arch/powerpc/platforms/83xx/Makefile +++ b/arch/powerpc/platforms/83xx/Makefile @@ -4,3 +4,4 @@ obj-y := misc.o obj-$(CONFIG_PCI) += pci.o obj-$(CONFIG_MPC834x_SYS) += mpc834x_sys.o +obj-$(CONFIG_MPC834x_ITX) += mpc834x_itx.o diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c new file mode 100644 index 000000000000..b46305645d38 --- /dev/null +++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c @@ -0,0 +1,156 @@ +/* + * arch/powerpc/platforms/83xx/mpc834x_itx.c + * + * MPC834x ITX board specific routines + * + * Maintainer: Kumar Gala <galak@kernel.crashing.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/config.h> +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/reboot.h> +#include <linux/pci.h> +#include <linux/kdev_t.h> +#include <linux/major.h> +#include <linux/console.h> +#include <linux/delay.h> +#include <linux/seq_file.h> +#include <linux/root_dev.h> + +#include <asm/system.h> +#include <asm/atomic.h> +#include <asm/time.h> +#include <asm/io.h> +#include <asm/machdep.h> +#include <asm/ipic.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/prom.h> +#include <asm/udbg.h> +#include <sysdev/fsl_soc.h> + +#include "mpc83xx.h" + +#include <platforms/83xx/mpc834x_sys.h> + +#ifndef CONFIG_PCI +unsigned long isa_io_base = 0; +unsigned long isa_mem_base = 0; +#endif + +#ifdef CONFIG_PCI +static int +mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) +{ + static char pci_irq_table[][4] = + /* + * PCI IDSEL/INTPIN->INTLINE + * A B C D + */ + { + {PIRQB, PIRQC, PIRQD, PIRQA}, /* idsel 0x0e */ + {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x0f */ + {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x10 */ + }; + + const long min_idsel = 0x0e, max_idsel = 0x10, irqs_per_slot = 4; + return PCI_IRQ_TABLE_LOOKUP; +} +#endif /* CONFIG_PCI */ + +/* ************************************************************************ + * + * Setup the architecture + * + */ +static void __init mpc834x_itx_setup_arch(void) +{ + struct device_node *np; + + if (ppc_md.progress) + ppc_md.progress("mpc834x_itx_setup_arch()", 0); + + np = of_find_node_by_type(NULL, "cpu"); + if (np != 0) { + unsigned int *fp = + (int *)get_property(np, "clock-frequency", NULL); + if (fp != 0) + loops_per_jiffy = *fp / HZ; + else + loops_per_jiffy = 50000000 / HZ; + of_node_put(np); + } +#ifdef CONFIG_PCI + for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) + add_bridge(np); + + ppc_md.pci_swizzle = common_swizzle; + ppc_md.pci_map_irq = mpc83xx_map_irq; + ppc_md.pci_exclude_device = mpc83xx_exclude_device; +#endif + +#ifdef CONFIG_ROOT_NFS + ROOT_DEV = Root_NFS; +#else + ROOT_DEV = Root_HDA1; +#endif +} + +void __init mpc834x_itx_init_IRQ(void) +{ + u8 senses[8] = { + 0, /* EXT 0 */ + IRQ_SENSE_LEVEL, /* EXT 1 */ + IRQ_SENSE_LEVEL, /* EXT 2 */ + 0, /* EXT 3 */ +#ifdef CONFIG_PCI + IRQ_SENSE_LEVEL, /* EXT 4 */ + IRQ_SENSE_LEVEL, /* EXT 5 */ + IRQ_SENSE_LEVEL, /* EXT 6 */ + IRQ_SENSE_LEVEL, /* EXT 7 */ +#else + 0, /* EXT 4 */ + 0, /* EXT 5 */ + 0, /* EXT 6 */ + 0, /* EXT 7 */ +#endif + }; + + ipic_init(get_immrbase() + 0x00700, 0, 0, senses, 8); + + /* Initialize the default interrupt mapping priorities, + * in case the boot rom changed something on us. + */ + ipic_set_default_priority(); +} + +/* + * Called very early, MMU is off, device-tree isn't unflattened + */ +static int __init mpc834x_itx_probe(void) +{ + /* We always match for now, eventually we should look at the flat + dev tree to ensure this is the board we are suppose to run on + */ + return 1; +} + +define_machine(mpc834x_itx) { + .name = "MPC834x ITX", + .probe = mpc834x_itx_probe, + .setup_arch = mpc834x_itx_setup_arch, + .init_IRQ = mpc834x_itx_init_IRQ, + .get_irq = ipic_get_irq, + .restart = mpc83xx_restart, + .time_init = mpc83xx_time_init, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.h b/arch/powerpc/platforms/83xx/mpc834x_itx.h new file mode 100644 index 000000000000..174ca4ef55f3 --- /dev/null +++ b/arch/powerpc/platforms/83xx/mpc834x_itx.h @@ -0,0 +1,23 @@ +/* + * arch/powerpc/platforms/83xx/mpc834x_itx.h + * + * MPC834X ITX common board definitions + * + * Maintainer: Kumar Gala <galak@kernel.crashing.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#ifndef __MACH_MPC83XX_ITX_H__ +#define __MACH_MPC83XX_ITX_H__ + +#define PIRQA MPC83xx_IRQ_EXT4 +#define PIRQB MPC83xx_IRQ_EXT5 +#define PIRQC MPC83xx_IRQ_EXT6 +#define PIRQD MPC83xx_IRQ_EXT7 + +#endif /* __MACH_MPC83XX_ITX_H__ */ diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c index 22da1335445a..9d5da7896892 100644 --- a/arch/powerpc/platforms/cell/interrupt.c +++ b/arch/powerpc/platforms/cell/interrupt.c @@ -1,6 +1,9 @@ /* * Cell Internal Interrupt Controller * + * Copyright (C) 2006 Benjamin Herrenschmidt (benh@kernel.crashing.org) + * IBM, Corp. + * * (C) Copyright IBM Deutschland Entwicklung GmbH 2005 * * Author: Arnd Bergmann <arndb@de.ibm.com> @@ -25,11 +28,13 @@ #include <linux/module.h> #include <linux/percpu.h> #include <linux/types.h> +#include <linux/ioport.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/prom.h> #include <asm/ptrace.h> +#include <asm/machdep.h> #include "interrupt.h" #include "cbe_regs.h" @@ -37,231 +42,65 @@ struct iic { struct cbe_iic_thread_regs __iomem *regs; u8 target_id; + u8 eoi_stack[16]; + int eoi_ptr; + struct irq_host *host; }; static DEFINE_PER_CPU(struct iic, iic); +#define IIC_NODE_COUNT 2 +static struct irq_host *iic_hosts[IIC_NODE_COUNT]; -void iic_local_enable(void) +/* Convert between "pending" bits and hw irq number */ +static irq_hw_number_t iic_pending_to_hwnum(struct cbe_iic_pending_bits bits) { - struct iic *iic = &__get_cpu_var(iic); - u64 tmp; - - /* - * There seems to be a bug that is present in DD2.x CPUs - * and still only partially fixed in DD3.1. - * This bug causes a value written to the priority register - * not to make it there, resulting in a system hang unless we - * write it again. - * Masking with 0xf0 is done because the Cell BE does not - * implement the lower four bits of the interrupt priority, - * they always read back as zeroes, although future CPUs - * might implement different bits. - */ - do { - out_be64(&iic->regs->prio, 0xff); - tmp = in_be64(&iic->regs->prio); - } while ((tmp & 0xf0) != 0xf0); -} - -void iic_local_disable(void) -{ - out_be64(&__get_cpu_var(iic).regs->prio, 0x0); -} + unsigned char unit = bits.source & 0xf; -static unsigned int iic_startup(unsigned int irq) -{ - return 0; + if (bits.flags & CBE_IIC_IRQ_IPI) + return IIC_IRQ_IPI0 | (bits.prio >> 4); + else if (bits.class <= 3) + return (bits.class << 4) | unit; + else + return IIC_IRQ_INVALID; } -static void iic_enable(unsigned int irq) +static void iic_mask(unsigned int irq) { - iic_local_enable(); } -static void iic_disable(unsigned int irq) +static void iic_unmask(unsigned int irq) { } -static void iic_end(unsigned int irq) +static void iic_eoi(unsigned int irq) { - iic_local_enable(); + struct iic *iic = &__get_cpu_var(iic); + out_be64(&iic->regs->prio, iic->eoi_stack[--iic->eoi_ptr]); + BUG_ON(iic->eoi_ptr < 0); } -static struct hw_interrupt_type iic_pic = { +static struct irq_chip iic_chip = { .typename = " CELL-IIC ", - .startup = iic_startup, - .enable = iic_enable, - .disable = iic_disable, - .end = iic_end, + .mask = iic_mask, + .unmask = iic_unmask, + .eoi = iic_eoi, }; -static int iic_external_get_irq(struct cbe_iic_pending_bits pending) -{ - int irq; - unsigned char node, unit; - - node = pending.source >> 4; - unit = pending.source & 0xf; - irq = -1; - - /* - * This mapping is specific to the Cell Broadband - * Engine. We might need to get the numbers - * from the device tree to support future CPUs. - */ - switch (unit) { - case 0x00: - case 0x0b: - /* - * One of these units can be connected - * to an external interrupt controller. - */ - if (pending.class != 2) - break; - irq = IIC_EXT_OFFSET - + spider_get_irq(node) - + node * IIC_NODE_STRIDE; - break; - case 0x01 ... 0x04: - case 0x07 ... 0x0a: - /* - * These units are connected to the SPEs - */ - if (pending.class > 2) - break; - irq = IIC_SPE_OFFSET - + pending.class * IIC_CLASS_STRIDE - + node * IIC_NODE_STRIDE - + unit; - break; - } - if (irq == -1) - printk(KERN_WARNING "Unexpected interrupt class %02x, " - "source %02x, prio %02x, cpu %02x\n", pending.class, - pending.source, pending.prio, smp_processor_id()); - return irq; -} - /* Get an IRQ number from the pending state register of the IIC */ -int iic_get_irq(struct pt_regs *regs) +static unsigned int iic_get_irq(struct pt_regs *regs) { - struct iic *iic; - int irq; - struct cbe_iic_pending_bits pending; - - iic = &__get_cpu_var(iic); - *(unsigned long *) &pending = - in_be64((unsigned long __iomem *) &iic->regs->pending_destr); - - irq = -1; - if (pending.flags & CBE_IIC_IRQ_VALID) { - if (pending.flags & CBE_IIC_IRQ_IPI) { - irq = IIC_IPI_OFFSET + (pending.prio >> 4); -/* - if (irq > 0x80) - printk(KERN_WARNING "Unexpected IPI prio %02x" - "on CPU %02x\n", pending.prio, - smp_processor_id()); -*/ - } else { - irq = iic_external_get_irq(pending); - } - } - return irq; -} - -/* hardcoded part to be compatible with older firmware */ - -static int setup_iic_hardcoded(void) -{ - struct device_node *np; - int nodeid, cpu; - unsigned long regs; - struct iic *iic; - - for_each_possible_cpu(cpu) { - iic = &per_cpu(iic, cpu); - nodeid = cpu/2; - - for (np = of_find_node_by_type(NULL, "cpu"); - np; - np = of_find_node_by_type(np, "cpu")) { - if (nodeid == *(int *)get_property(np, "node-id", NULL)) - break; - } - - if (!np) { - printk(KERN_WARNING "IIC: CPU %d not found\n", cpu); - iic->regs = NULL; - iic->target_id = 0xff; - return -ENODEV; - } - - regs = *(long *)get_property(np, "iic", NULL); - - /* hack until we have decided on the devtree info */ - regs += 0x400; - if (cpu & 1) - regs += 0x20; - - printk(KERN_INFO "IIC for CPU %d at %lx\n", cpu, regs); - iic->regs = ioremap(regs, sizeof(struct cbe_iic_thread_regs)); - iic->target_id = (nodeid << 4) + ((cpu & 1) ? 0xf : 0xe); - } - - return 0; -} - -static int setup_iic(void) -{ - struct device_node *dn; - unsigned long *regs; - char *compatible; - unsigned *np, found = 0; - struct iic *iic = NULL; - - for (dn = NULL; (dn = of_find_node_by_name(dn, "interrupt-controller"));) { - compatible = (char *)get_property(dn, "compatible", NULL); - - if (!compatible) { - printk(KERN_WARNING "no compatible property found !\n"); - continue; - } - - if (strstr(compatible, "IBM,CBEA-Internal-Interrupt-Controller")) - regs = (unsigned long *)get_property(dn,"reg", NULL); - else - continue; - - if (!regs) - printk(KERN_WARNING "IIC: no reg property\n"); - - np = (unsigned int *)get_property(dn, "ibm,interrupt-server-ranges", NULL); - - if (!np) { - printk(KERN_WARNING "IIC: CPU association not found\n"); - iic->regs = NULL; - iic->target_id = 0xff; - return -ENODEV; - } - - iic = &per_cpu(iic, np[0]); - iic->regs = ioremap(regs[0], sizeof(struct cbe_iic_thread_regs)); - iic->target_id = ((np[0] & 2) << 3) + ((np[0] & 1) ? 0xf : 0xe); - printk("IIC for CPU %d at %lx mapped to %p\n", np[0], regs[0], iic->regs); - - iic = &per_cpu(iic, np[1]); - iic->regs = ioremap(regs[2], sizeof(struct cbe_iic_thread_regs)); - iic->target_id = ((np[1] & 2) << 3) + ((np[1] & 1) ? 0xf : 0xe); - printk("IIC for CPU %d at %lx mapped to %p\n", np[1], regs[2], iic->regs); - - found++; - } - - if (found) - return 0; - else - return -ENODEV; + struct cbe_iic_pending_bits pending; + struct iic *iic; + + iic = &__get_cpu_var(iic); + *(unsigned long *) &pending = + in_be64((unsigned long __iomem *) &iic->regs->pending_destr); + iic->eoi_stack[++iic->eoi_ptr] = pending.prio; + BUG_ON(iic->eoi_ptr > 15); + if (pending.flags & CBE_IIC_IRQ_VALID) + return irq_linear_revmap(iic->host, + iic_pending_to_hwnum(pending)); + return NO_IRQ; } #ifdef CONFIG_SMP @@ -269,12 +108,12 @@ static int setup_iic(void) /* Use the highest interrupt priorities for IPI */ static inline int iic_ipi_to_irq(int ipi) { - return IIC_IPI_OFFSET + IIC_NUM_IPIS - 1 - ipi; + return IIC_IRQ_IPI0 + IIC_NUM_IPIS - 1 - ipi; } static inline int iic_irq_to_ipi(int irq) { - return IIC_NUM_IPIS - 1 - (irq - IIC_IPI_OFFSET); + return IIC_NUM_IPIS - 1 - (irq - IIC_IRQ_IPI0); } void iic_setup_cpu(void) @@ -293,22 +132,51 @@ u8 iic_get_target_id(int cpu) } EXPORT_SYMBOL_GPL(iic_get_target_id); +struct irq_host *iic_get_irq_host(int node) +{ + if (node < 0 || node >= IIC_NODE_COUNT) + return NULL; + return iic_hosts[node]; +} +EXPORT_SYMBOL_GPL(iic_get_irq_host); + + static irqreturn_t iic_ipi_action(int irq, void *dev_id, struct pt_regs *regs) { - smp_message_recv(iic_irq_to_ipi(irq), regs); + int ipi = (int)(long)dev_id; + + smp_message_recv(ipi, regs); + return IRQ_HANDLED; } static void iic_request_ipi(int ipi, const char *name) { - int irq; - - irq = iic_ipi_to_irq(ipi); - /* IPIs are marked IRQF_DISABLED as they must run with irqs - * disabled */ - get_irq_desc(irq)->chip = &iic_pic; - get_irq_desc(irq)->status |= IRQ_PER_CPU; - request_irq(irq, iic_ipi_action, IRQF_DISABLED, name, NULL); + int node, virq; + + for (node = 0; node < IIC_NODE_COUNT; node++) { + char *rname; + if (iic_hosts[node] == NULL) + continue; + virq = irq_create_mapping(iic_hosts[node], + iic_ipi_to_irq(ipi), 0); + if (virq == NO_IRQ) { + printk(KERN_ERR + "iic: failed to map IPI %s on node %d\n", + name, node); + continue; + } + rname = kzalloc(strlen(name) + 16, GFP_KERNEL); + if (rname) + sprintf(rname, "%s node %d", name, node); + else + rname = (char *)name; + if (request_irq(virq, iic_ipi_action, IRQF_DISABLED, + rname, (void *)(long)ipi)) + printk(KERN_ERR + "iic: failed to request IPI %s on node %d\n", + name, node); + } } void iic_request_IPIs(void) @@ -319,34 +187,119 @@ void iic_request_IPIs(void) iic_request_ipi(PPC_MSG_DEBUGGER_BREAK, "IPI-debug"); #endif /* CONFIG_DEBUGGER */ } + #endif /* CONFIG_SMP */ -static void iic_setup_spe_handlers(void) + +static int iic_host_match(struct irq_host *h, struct device_node *node) +{ + return h->host_data != NULL && node == h->host_data; +} + +static int iic_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw, unsigned int flags) +{ + if (hw < IIC_IRQ_IPI0) + set_irq_chip_and_handler(virq, &iic_chip, handle_fasteoi_irq); + else + set_irq_chip_and_handler(virq, &iic_chip, handle_percpu_irq); + return 0; +} + +static int iic_host_xlate(struct irq_host *h, struct device_node *ct, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, unsigned int *out_flags) + +{ + /* Currently, we don't translate anything. That needs to be fixed as + * we get better defined device-trees. iic interrupts have to be + * explicitely mapped by whoever needs them + */ + return -ENODEV; +} + +static struct irq_host_ops iic_host_ops = { + .match = iic_host_match, + .map = iic_host_map, + .xlate = iic_host_xlate, +}; + +static void __init init_one_iic(unsigned int hw_cpu, unsigned long addr, + struct irq_host *host) { - int be, isrc; + /* XXX FIXME: should locate the linux CPU number from the HW cpu + * number properly. We are lucky for now + */ + struct iic *iic = &per_cpu(iic, hw_cpu); + + iic->regs = ioremap(addr, sizeof(struct cbe_iic_thread_regs)); + BUG_ON(iic->regs == NULL); - /* Assume two threads per BE are present */ - for (be=0; be < num_present_cpus() / 2; be++) { - for (isrc = 0; isrc < IIC_CLASS_STRIDE * 3; isrc++) { - int irq = IIC_NODE_STRIDE * be + IIC_SPE_OFFSET + isrc; - get_irq_desc(irq)->chip = &iic_pic; + iic->target_id = ((hw_cpu & 2) << 3) | ((hw_cpu & 1) ? 0xf : 0xe); + iic->eoi_stack[0] = 0xff; + iic->host = host; + out_be64(&iic->regs->prio, 0); + + printk(KERN_INFO "IIC for CPU %d at %lx mapped to %p, target id 0x%x\n", + hw_cpu, addr, iic->regs, iic->target_id); +} + +static int __init setup_iic(void) +{ + struct device_node *dn; + struct resource r0, r1; + struct irq_host *host; + int found = 0; + u32 *np; + + for (dn = NULL; + (dn = of_find_node_by_name(dn,"interrupt-controller")) != NULL;) { + if (!device_is_compatible(dn, + "IBM,CBEA-Internal-Interrupt-Controller")) + continue; + np = (u32 *)get_property(dn, "ibm,interrupt-server-ranges", + NULL); + if (np == NULL) { + printk(KERN_WARNING "IIC: CPU association not found\n"); + of_node_put(dn); + return -ENODEV; + } + if (of_address_to_resource(dn, 0, &r0) || + of_address_to_resource(dn, 1, &r1)) { + printk(KERN_WARNING "IIC: Can't resolve addresses\n"); + of_node_put(dn); + return -ENODEV; } + host = NULL; + if (found < IIC_NODE_COUNT) { + host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, + IIC_SOURCE_COUNT, + &iic_host_ops, + IIC_IRQ_INVALID); + iic_hosts[found] = host; + BUG_ON(iic_hosts[found] == NULL); + iic_hosts[found]->host_data = of_node_get(dn); + found++; + } + init_one_iic(np[0], r0.start, host); + init_one_iic(np[1], r1.start, host); } + + if (found) + return 0; + else + return -ENODEV; } -void iic_init_IRQ(void) +void __init iic_init_IRQ(void) { - int cpu, irq_offset; - struct iic *iic; - + /* Discover and initialize iics */ if (setup_iic() < 0) - setup_iic_hardcoded(); + panic("IIC: Failed to initialize !\n"); - irq_offset = 0; - for_each_possible_cpu(cpu) { - iic = &per_cpu(iic, cpu); - if (iic->regs) - out_be64(&iic->regs->prio, 0xff); - } - iic_setup_spe_handlers(); + /* Set master interrupt handling function */ + ppc_md.get_irq = iic_get_irq; + + /* Enable on current CPU */ + iic_setup_cpu(); } diff --git a/arch/powerpc/platforms/cell/interrupt.h b/arch/powerpc/platforms/cell/interrupt.h index 799f77d98f96..5560a92ec3ab 100644 --- a/arch/powerpc/platforms/cell/interrupt.h +++ b/arch/powerpc/platforms/cell/interrupt.h @@ -37,27 +37,24 @@ */ enum { - IIC_EXT_OFFSET = 0x00, /* Start of south bridge IRQs */ - IIC_NUM_EXT = 0x40, /* Number of south bridge IRQs */ - IIC_SPE_OFFSET = 0x40, /* Start of SPE interrupts */ - IIC_CLASS_STRIDE = 0x10, /* SPE IRQs per class */ - IIC_IPI_OFFSET = 0x70, /* Start of IPI IRQs */ - IIC_NUM_IPIS = 0x10, /* IRQs reserved for IPI */ - IIC_NODE_STRIDE = 0x80, /* Total IRQs per node */ + IIC_IRQ_INVALID = 0xff, + IIC_IRQ_MAX = 0x3f, + IIC_IRQ_EXT_IOIF0 = 0x20, + IIC_IRQ_EXT_IOIF1 = 0x2b, + IIC_IRQ_IPI0 = 0x40, + IIC_NUM_IPIS = 0x10, /* IRQs reserved for IPI */ + IIC_SOURCE_COUNT = 0x50, }; extern void iic_init_IRQ(void); -extern int iic_get_irq(struct pt_regs *regs); extern void iic_cause_IPI(int cpu, int mesg); extern void iic_request_IPIs(void); extern void iic_setup_cpu(void); -extern void iic_local_enable(void); -extern void iic_local_disable(void); extern u8 iic_get_target_id(int cpu); +extern struct irq_host *iic_get_irq_host(int node); extern void spider_init_IRQ(void); -extern int spider_get_irq(int node); #endif #endif /* ASM_CELL_PIC_H */ diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index d8c2a29b3c15..282987d6d4a2 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -49,6 +49,7 @@ #include <asm/irq.h> #include <asm/spu.h> #include <asm/spu_priv1.h> +#include <asm/udbg.h> #include "interrupt.h" #include "iommu.h" @@ -79,10 +80,22 @@ static void cell_progress(char *s, unsigned short hex) printk("*** %04x : %s\n", hex, s ? s : ""); } +static void __init cell_pcibios_fixup(void) +{ + struct pci_dev *dev = NULL; + + for_each_pci_dev(dev) + pci_read_irq_line(dev); +} + +static void __init cell_init_irq(void) +{ + iic_init_IRQ(); + spider_init_IRQ(); +} + static void __init cell_setup_arch(void) { - ppc_md.init_IRQ = iic_init_IRQ; - ppc_md.get_irq = iic_get_irq; #ifdef CONFIG_SPU_BASE spu_priv1_ops = &spu_priv1_mmio_ops; #endif @@ -108,7 +121,6 @@ static void __init cell_setup_arch(void) /* Find and initialize PCI host bridges */ init_pci_config_tokens(); find_and_init_phbs(); - spider_init_IRQ(); cbe_pervasive_init(); #ifdef CONFIG_DUMMY_CONSOLE conswitchp = &dummy_con; @@ -126,8 +138,6 @@ static void __init cell_init_early(void) cell_init_iommu(); - ppc64_interrupt_controller = IC_CELL_PIC; - DBG(" <- cell_init_early()\n"); } @@ -173,6 +183,8 @@ define_machine(cell) { .calibrate_decr = generic_calibrate_decr, .check_legacy_ioport = cell_check_legacy_ioport, .progress = cell_progress, + .init_IRQ = cell_init_irq, + .pcibios_fixup = cell_pcibios_fixup, #ifdef CONFIG_KEXEC .machine_kexec = default_machine_kexec, .machine_kexec_prepare = default_machine_kexec_prepare, diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c index 7c3a0b6d34fd..ae7ef88f1a37 100644 --- a/arch/powerpc/platforms/cell/spider-pic.c +++ b/arch/powerpc/platforms/cell/spider-pic.c @@ -22,6 +22,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/ioport.h> #include <asm/pgtable.h> #include <asm/prom.h> @@ -56,184 +57,313 @@ enum { REISWAITEN = 0x508, /* Reissue Wait Control*/ }; -static void __iomem *spider_pics[4]; +#define SPIDER_CHIP_COUNT 4 +#define SPIDER_SRC_COUNT 64 +#define SPIDER_IRQ_INVALID 63 -static void __iomem *spider_get_pic(int irq) -{ - int node = irq / IIC_NODE_STRIDE; - irq %= IIC_NODE_STRIDE; - - if (irq >= IIC_EXT_OFFSET && - irq < IIC_EXT_OFFSET + IIC_NUM_EXT && - spider_pics) - return spider_pics[node]; - return NULL; -} +struct spider_pic { + struct irq_host *host; + struct device_node *of_node; + void __iomem *regs; + unsigned int node_id; +}; +static struct spider_pic spider_pics[SPIDER_CHIP_COUNT]; -static int spider_get_nr(unsigned int irq) +static struct spider_pic *spider_virq_to_pic(unsigned int virq) { - return (irq % IIC_NODE_STRIDE) - IIC_EXT_OFFSET; + return irq_map[virq].host->host_data; } -static void __iomem *spider_get_irq_config(int irq) +static void __iomem *spider_get_irq_config(struct spider_pic *pic, + unsigned int src) { - void __iomem *pic; - pic = spider_get_pic(irq); - return pic + TIR_CFGA + 8 * spider_get_nr(irq); + return pic->regs + TIR_CFGA + 8 * src; } -static void spider_enable_irq(unsigned int irq) +static void spider_unmask_irq(unsigned int virq) { - int nodeid = (irq / IIC_NODE_STRIDE) * 0x10; - void __iomem *cfg = spider_get_irq_config(irq); - irq = spider_get_nr(irq); + struct spider_pic *pic = spider_virq_to_pic(virq); + void __iomem *cfg = spider_get_irq_config(pic, irq_map[virq].hwirq); - out_be32(cfg, (in_be32(cfg) & ~0xf0)| 0x3107000eu | nodeid); - out_be32(cfg + 4, in_be32(cfg + 4) | 0x00020000u | irq); + /* We use no locking as we should be covered by the descriptor lock + * for access to invidual source configuration registers + */ + out_be32(cfg, in_be32(cfg) | 0x30000000u); } -static void spider_disable_irq(unsigned int irq) +static void spider_mask_irq(unsigned int virq) { - void __iomem *cfg = spider_get_irq_config(irq); - irq = spider_get_nr(irq); + struct spider_pic *pic = spider_virq_to_pic(virq); + void __iomem *cfg = spider_get_irq_config(pic, irq_map[virq].hwirq); + /* We use no locking as we should be covered by the descriptor lock + * for access to invidual source configuration registers + */ out_be32(cfg, in_be32(cfg) & ~0x30000000u); } -static unsigned int spider_startup_irq(unsigned int irq) +static void spider_ack_irq(unsigned int virq) { - spider_enable_irq(irq); - return 0; -} + struct spider_pic *pic = spider_virq_to_pic(virq); + unsigned int src = irq_map[virq].hwirq; -static void spider_shutdown_irq(unsigned int irq) -{ - spider_disable_irq(irq); -} + /* Reset edge detection logic if necessary + */ + if (get_irq_desc(virq)->status & IRQ_LEVEL) + return; -static void spider_end_irq(unsigned int irq) -{ - spider_enable_irq(irq); -} + /* Only interrupts 47 to 50 can be set to edge */ + if (src < 47 || src > 50) + return; -static void spider_ack_irq(unsigned int irq) -{ - spider_disable_irq(irq); - iic_local_enable(); + /* Perform the clear of the edge logic */ + out_be32(pic->regs + TIR_EDC, 0x100 | (src & 0xf)); } -static struct hw_interrupt_type spider_pic = { +static struct irq_chip spider_pic = { .typename = " SPIDER ", - .startup = spider_startup_irq, - .shutdown = spider_shutdown_irq, - .enable = spider_enable_irq, - .disable = spider_disable_irq, + .unmask = spider_unmask_irq, + .mask = spider_mask_irq, .ack = spider_ack_irq, - .end = spider_end_irq, }; -int spider_get_irq(int node) +static int spider_host_match(struct irq_host *h, struct device_node *node) { - unsigned long cs; - void __iomem *regs = spider_pics[node]; - - cs = in_be32(regs + TIR_CS) >> 24; - - if (cs == 63) - return -1; - else - return cs; + struct spider_pic *pic = h->host_data; + return node == pic->of_node; } -/* hardcoded part to be compatible with older firmware */ - -void spider_init_IRQ_hardcoded(void) +static int spider_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw, unsigned int flags) { - int node; - long spiderpic; - long pics[] = { 0x24000008000, 0x34000008000 }; - int n; - - pr_debug("%s(%d): Using hardcoded defaults\n", __FUNCTION__, __LINE__); - - for (node = 0; node < num_present_cpus()/2; node++) { - spiderpic = pics[node]; - printk(KERN_DEBUG "SPIDER addr: %lx\n", spiderpic); - spider_pics[node] = ioremap(spiderpic, 0x800); - for (n = 0; n < IIC_NUM_EXT; n++) { - int irq = n + IIC_EXT_OFFSET + node * IIC_NODE_STRIDE; - get_irq_desc(irq)->chip = &spider_pic; - } - - /* do not mask any interrupts because of level */ - out_be32(spider_pics[node] + TIR_MSK, 0x0); - - /* disable edge detection clear */ - /* out_be32(spider_pics[node] + TIR_EDC, 0x0); */ - - /* enable interrupt packets to be output */ - out_be32(spider_pics[node] + TIR_PIEN, - in_be32(spider_pics[node] + TIR_PIEN) | 0x1); - - /* Enable the interrupt detection enable bit. Do this last! */ - out_be32(spider_pics[node] + TIR_DEN, - in_be32(spider_pics[node] + TIR_DEN) | 0x1); + unsigned int sense = flags & IRQ_TYPE_SENSE_MASK; + struct spider_pic *pic = h->host_data; + void __iomem *cfg = spider_get_irq_config(pic, hw); + int level = 0; + u32 ic; + + /* Note that only level high is supported for most interrupts */ + if (sense != IRQ_TYPE_NONE && sense != IRQ_TYPE_LEVEL_HIGH && + (hw < 47 || hw > 50)) + return -EINVAL; + + /* Decode sense type */ + switch(sense) { + case IRQ_TYPE_EDGE_RISING: + ic = 0x3; + break; + case IRQ_TYPE_EDGE_FALLING: + ic = 0x2; + break; + case IRQ_TYPE_LEVEL_LOW: + ic = 0x0; + level = 1; + break; + case IRQ_TYPE_LEVEL_HIGH: + case IRQ_TYPE_NONE: + ic = 0x1; + level = 1; + break; + default: + return -EINVAL; } -} -void spider_init_IRQ(void) -{ - long spider_reg; - struct device_node *dn; - char *compatible; - int n, node = 0; + /* Configure the source. One gross hack that was there before and + * that I've kept around is the priority to the BE which I set to + * be the same as the interrupt source number. I don't know wether + * that's supposed to make any kind of sense however, we'll have to + * decide that, but for now, I'm not changing the behaviour. + */ + out_be32(cfg, (ic << 24) | (0x7 << 16) | (pic->node_id << 4) | 0xe); + out_be32(cfg + 4, (0x2 << 16) | (hw & 0xff)); + + if (level) + get_irq_desc(virq)->status |= IRQ_LEVEL; + set_irq_chip_and_handler(virq, &spider_pic, handle_level_irq); + return 0; +} - for (dn = NULL; (dn = of_find_node_by_name(dn, "interrupt-controller"));) { - compatible = (char *)get_property(dn, "compatible", NULL); +static int spider_host_xlate(struct irq_host *h, struct device_node *ct, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, unsigned int *out_flags) - if (!compatible) - continue; +{ + /* Spider interrupts have 2 cells, first is the interrupt source, + * second, well, I don't know for sure yet ... We mask the top bits + * because old device-trees encode a node number in there + */ + *out_hwirq = intspec[0] & 0x3f; + *out_flags = IRQ_TYPE_LEVEL_HIGH; + return 0; +} - if (strstr(compatible, "CBEA,platform-spider-pic")) - spider_reg = *(long *)get_property(dn,"reg", NULL); - else if (strstr(compatible, "sti,platform-spider-pic")) { - spider_init_IRQ_hardcoded(); - return; - } else - continue; +static struct irq_host_ops spider_host_ops = { + .match = spider_host_match, + .map = spider_host_map, + .xlate = spider_host_xlate, +}; - if (!spider_reg) - printk("interrupt controller does not have reg property !\n"); +static void spider_irq_cascade(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs) +{ + struct spider_pic *pic = desc->handler_data; + unsigned int cs, virq; - n = prom_n_addr_cells(dn); + cs = in_be32(pic->regs + TIR_CS) >> 24; + if (cs == SPIDER_IRQ_INVALID) + virq = NO_IRQ; + else + virq = irq_linear_revmap(pic->host, cs); + if (virq != NO_IRQ) + generic_handle_irq(virq, regs); + desc->chip->eoi(irq); +} - if ( n != 2) - printk("reg property with invalid number of elements \n"); +/* For hooking up the cascace we have a problem. Our device-tree is + * crap and we don't know on which BE iic interrupt we are hooked on at + * least not the "standard" way. We can reconstitute it based on two + * informations though: which BE node we are connected to and wether + * we are connected to IOIF0 or IOIF1. Right now, we really only care + * about the IBM cell blade and we know that its firmware gives us an + * interrupt-map property which is pretty strange. + */ +static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic) +{ + unsigned int virq; + u32 *imap, *tmp; + int imaplen, intsize, unit; + struct device_node *iic; + struct irq_host *iic_host; + +#if 0 /* Enable that when we have a way to retreive the node as well */ + /* First, we check wether we have a real "interrupts" in the device + * tree in case the device-tree is ever fixed + */ + struct of_irq oirq; + if (of_irq_map_one(pic->of_node, 0, &oirq) == 0) { + virq = irq_create_of_mapping(oirq.controller, oirq.specifier, + oirq.size); + goto bail; + } +#endif + + /* Now do the horrible hacks */ + tmp = (u32 *)get_property(pic->of_node, "#interrupt-cells", NULL); + if (tmp == NULL) + return NO_IRQ; + intsize = *tmp; + imap = (u32 *)get_property(pic->of_node, "interrupt-map", &imaplen); + if (imap == NULL || imaplen < (intsize + 1)) + return NO_IRQ; + iic = of_find_node_by_phandle(imap[intsize]); + if (iic == NULL) + return NO_IRQ; + imap += intsize + 1; + tmp = (u32 *)get_property(iic, "#interrupt-cells", NULL); + if (tmp == NULL) + return NO_IRQ; + intsize = *tmp; + /* Assume unit is last entry of interrupt specifier */ + unit = imap[intsize - 1]; + /* Ok, we have a unit, now let's try to get the node */ + tmp = (u32 *)get_property(iic, "ibm,interrupt-server-ranges", NULL); + if (tmp == NULL) { + of_node_put(iic); + return NO_IRQ; + } + /* ugly as hell but works for now */ + pic->node_id = (*tmp) >> 1; + of_node_put(iic); + + /* Ok, now let's get cracking. You may ask me why I just didn't match + * the iic host from the iic OF node, but that way I'm still compatible + * with really really old old firmwares for which we don't have a node + */ + iic_host = iic_get_irq_host(pic->node_id); + if (iic_host == NULL) + return NO_IRQ; + /* Manufacture an IIC interrupt number of class 2 */ + virq = irq_create_mapping(iic_host, 0x20 | unit, 0); + if (virq == NO_IRQ) + printk(KERN_ERR "spider_pic: failed to map cascade !"); + return virq; +} - spider_pics[node] = ioremap(spider_reg, 0x800); - printk("SPIDER addr: %lx with %i addr_cells mapped to %p\n", - spider_reg, n, spider_pics[node]); +static void __init spider_init_one(struct device_node *of_node, int chip, + unsigned long addr) +{ + struct spider_pic *pic = &spider_pics[chip]; + int i, virq; + + /* Map registers */ + pic->regs = ioremap(addr, 0x1000); + if (pic->regs == NULL) + panic("spider_pic: can't map registers !"); + + /* Allocate a host */ + pic->host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, SPIDER_SRC_COUNT, + &spider_host_ops, SPIDER_IRQ_INVALID); + if (pic->host == NULL) + panic("spider_pic: can't allocate irq host !"); + pic->host->host_data = pic; + + /* Fill out other bits */ + pic->of_node = of_node_get(of_node); + + /* Go through all sources and disable them */ + for (i = 0; i < SPIDER_SRC_COUNT; i++) { + void __iomem *cfg = pic->regs + TIR_CFGA + 8 * i; + out_be32(cfg, in_be32(cfg) & ~0x30000000u); + } - for (n = 0; n < IIC_NUM_EXT; n++) { - int irq = n + IIC_EXT_OFFSET + node * IIC_NODE_STRIDE; - get_irq_desc(irq)->chip = &spider_pic; - } + /* do not mask any interrupts because of level */ + out_be32(pic->regs + TIR_MSK, 0x0); - /* do not mask any interrupts because of level */ - out_be32(spider_pics[node] + TIR_MSK, 0x0); + /* enable interrupt packets to be output */ + out_be32(pic->regs + TIR_PIEN, in_be32(pic->regs + TIR_PIEN) | 0x1); - /* disable edge detection clear */ - /* out_be32(spider_pics[node] + TIR_EDC, 0x0); */ + /* Hook up the cascade interrupt to the iic and nodeid */ + virq = spider_find_cascade_and_node(pic); + if (virq == NO_IRQ) + return; + set_irq_data(virq, pic); + set_irq_chained_handler(virq, spider_irq_cascade); - /* enable interrupt packets to be output */ - out_be32(spider_pics[node] + TIR_PIEN, - in_be32(spider_pics[node] + TIR_PIEN) | 0x1); + printk(KERN_INFO "spider_pic: node %d, addr: 0x%lx %s\n", + pic->node_id, addr, of_node->full_name); - /* Enable the interrupt detection enable bit. Do this last! */ - out_be32(spider_pics[node] + TIR_DEN, - in_be32(spider_pics[node] + TIR_DEN) | 0x1); + /* Enable the interrupt detection enable bit. Do this last! */ + out_be32(pic->regs + TIR_DEN, in_be32(pic->regs + TIR_DEN) | 0x1); +} - node++; +void __init spider_init_IRQ(void) +{ + struct resource r; + struct device_node *dn; + int chip = 0; + + /* XXX node numbers are totally bogus. We _hope_ we get the device + * nodes in the right order here but that's definitely not guaranteed, + * we need to get the node from the device tree instead. + * There is currently no proper property for it (but our whole + * device-tree is bogus anyway) so all we can do is pray or maybe test + * the address and deduce the node-id + */ + for (dn = NULL; + (dn = of_find_node_by_name(dn, "interrupt-controller"));) { + if (device_is_compatible(dn, "CBEA,platform-spider-pic")) { + if (of_address_to_resource(dn, 0, &r)) { + printk(KERN_WARNING "spider-pic: Failed\n"); + continue; + } + } else if (device_is_compatible(dn, "sti,platform-spider-pic") + && (chip < 2)) { + static long hard_coded_pics[] = + { 0x24000008000, 0x34000008000 }; + r.start = hard_coded_pics[chip]; + } else + continue; + spider_init_one(dn, chip++, r.start); } } diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 656c1ef5f4ad..5d2313a6c82b 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -264,51 +264,57 @@ spu_irq_class_2(int irq, void *data, struct pt_regs *regs) return stat ? IRQ_HANDLED : IRQ_NONE; } -static int -spu_request_irqs(struct spu *spu) +static int spu_request_irqs(struct spu *spu) { - int ret; - int irq_base; - - irq_base = IIC_NODE_STRIDE * spu->node + IIC_SPE_OFFSET; - - snprintf(spu->irq_c0, sizeof (spu->irq_c0), "spe%02d.0", spu->number); - ret = request_irq(irq_base + spu->isrc, - spu_irq_class_0, IRQF_DISABLED, spu->irq_c0, spu); - if (ret) - goto out; - - snprintf(spu->irq_c1, sizeof (spu->irq_c1), "spe%02d.1", spu->number); - ret = request_irq(irq_base + IIC_CLASS_STRIDE + spu->isrc, - spu_irq_class_1, IRQF_DISABLED, spu->irq_c1, spu); - if (ret) - goto out1; + int ret = 0; - snprintf(spu->irq_c2, sizeof (spu->irq_c2), "spe%02d.2", spu->number); - ret = request_irq(irq_base + 2*IIC_CLASS_STRIDE + spu->isrc, - spu_irq_class_2, IRQF_DISABLED, spu->irq_c2, spu); - if (ret) - goto out2; - goto out; + if (spu->irqs[0] != NO_IRQ) { + snprintf(spu->irq_c0, sizeof (spu->irq_c0), "spe%02d.0", + spu->number); + ret = request_irq(spu->irqs[0], spu_irq_class_0, + IRQF_DISABLED, + spu->irq_c0, spu); + if (ret) + goto bail0; + } + if (spu->irqs[1] != NO_IRQ) { + snprintf(spu->irq_c1, sizeof (spu->irq_c1), "spe%02d.1", + spu->number); + ret = request_irq(spu->irqs[1], spu_irq_class_1, + IRQF_DISABLED, + spu->irq_c1, spu); + if (ret) + goto bail1; + } + if (spu->irqs[2] != NO_IRQ) { + snprintf(spu->irq_c2, sizeof (spu->irq_c2), "spe%02d.2", + spu->number); + ret = request_irq(spu->irqs[2], spu_irq_class_2, + IRQF_DISABLED, + spu->irq_c2, spu); + if (ret) + goto bail2; + } + return 0; -out2: - free_irq(irq_base + IIC_CLASS_STRIDE + spu->isrc, spu); -out1: - free_irq(irq_base + spu->isrc, spu); -out: +bail2: + if (spu->irqs[1] != NO_IRQ) + free_irq(spu->irqs[1], spu); +bail1: + if (spu->irqs[0] != NO_IRQ) + free_irq(spu->irqs[0], spu); +bail0: return ret; } -static void -spu_free_irqs(struct spu *spu) +static void spu_free_irqs(struct spu *spu) { - int irq_base; - - irq_base = IIC_NODE_STRIDE * spu->node + IIC_SPE_OFFSET; - - free_irq(irq_base + spu->isrc, spu); - free_irq(irq_base + IIC_CLASS_STRIDE + spu->isrc, spu); - free_irq(irq_base + 2*IIC_CLASS_STRIDE + spu->isrc, spu); + if (spu->irqs[0] != NO_IRQ) + free_irq(spu->irqs[0], spu); + if (spu->irqs[1] != NO_IRQ) + free_irq(spu->irqs[1], spu); + if (spu->irqs[2] != NO_IRQ) + free_irq(spu->irqs[2], spu); } static LIST_HEAD(spu_list); @@ -559,17 +565,38 @@ static void spu_unmap(struct spu *spu) iounmap((u8 __iomem *)spu->local_store); } +/* This function shall be abstracted for HV platforms */ +static int __init spu_map_interrupts(struct spu *spu, struct device_node *np) +{ + struct irq_host *host; + unsigned int isrc; + u32 *tmp; + + host = iic_get_irq_host(spu->node); + if (host == NULL) + return -ENODEV; + + /* Get the interrupt source from the device-tree */ + tmp = (u32 *)get_property(np, "isrc", NULL); + if (!tmp) + return -ENODEV; + spu->isrc = isrc = tmp[0]; + + /* Now map interrupts of all 3 classes */ + spu->irqs[0] = irq_create_mapping(host, 0x00 | isrc, 0); + spu->irqs[1] = irq_create_mapping(host, 0x10 | isrc, 0); + spu->irqs[2] = irq_create_mapping(host, 0x20 | isrc, 0); + + /* Right now, we only fail if class 2 failed */ + return spu->irqs[2] == NO_IRQ ? -EINVAL : 0; +} + static int __init spu_map_device(struct spu *spu, struct device_node *node) { char *prop; int ret; ret = -ENODEV; - prop = get_property(node, "isrc", NULL); - if (!prop) - goto out; - spu->isrc = *(unsigned int *)prop; - spu->name = get_property(node, "name", NULL); if (!spu->name) goto out; @@ -636,7 +663,8 @@ static int spu_create_sysdev(struct spu *spu) return ret; } - sysdev_create_file(&spu->sysdev, &attr_isrc); + if (spu->isrc != 0) + sysdev_create_file(&spu->sysdev, &attr_isrc); sysfs_add_device_to_node(&spu->sysdev, spu->nid); return 0; @@ -668,6 +696,9 @@ static int __init create_spu(struct device_node *spe) spu->nid = of_node_to_nid(spe); if (spu->nid == -1) spu->nid = 0; + ret = spu_map_interrupts(spu, spe); + if (ret) + goto out_unmap; spin_lock_init(&spu->register_lock); spu_mfc_sdr_set(spu, mfspr(SPRN_SDR1)); spu_mfc_sr1_set(spu, 0x33); diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c index 66c253498803..6802cdc3168a 100644 --- a/arch/powerpc/platforms/chrp/pci.c +++ b/arch/powerpc/platforms/chrp/pci.c @@ -18,7 +18,6 @@ #include <asm/machdep.h> #include <asm/sections.h> #include <asm/pci-bridge.h> -#include <asm/open_pic.h> #include <asm/grackle.h> #include <asm/rtas.h> @@ -161,15 +160,9 @@ void __init chrp_pcibios_fixup(void) { struct pci_dev *dev = NULL; - struct device_node *np; - /* PCI interrupts are controlled by the OpenPIC */ - for_each_pci_dev(dev) { - np = pci_device_to_OF_node(dev); - if ((np != 0) && (np->n_intrs > 0) && (np->intrs[0].line != 0)) - dev->irq = np->intrs[0].line; - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); - } + for_each_pci_dev(dev) + pci_read_irq_line(dev); } #define PRG_CL_RESET_VALID 0x00010000 diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index 1f1771b212b4..bb10171132fa 100644 --- a/arch/powerpc/platforms/chrp/setup.c +++ b/arch/powerpc/platforms/chrp/setup.c @@ -59,7 +59,7 @@ void rtas_indicator_progress(char *, unsigned short); int _chrp_type; EXPORT_SYMBOL(_chrp_type); -struct mpic *chrp_mpic; +static struct mpic *chrp_mpic; /* Used for doing CHRP event-scans */ DEFINE_PER_CPU(struct timer_list, heartbeat_timer); @@ -315,24 +315,32 @@ chrp_event_scan(unsigned long unused) jiffies + event_scan_interval); } +static void chrp_8259_cascade(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs) +{ + unsigned int cascade_irq = i8259_irq(regs); + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq, regs); + desc->chip->eoi(irq); +} + /* * Finds the open-pic node and sets up the mpic driver. */ static void __init chrp_find_openpic(void) { struct device_node *np, *root; - int len, i, j, irq_count; + int len, i, j; int isu_size, idu_size; unsigned int *iranges, *opprop = NULL; int oplen = 0; unsigned long opaddr; int na = 1; - unsigned char init_senses[NR_IRQS - NUM_8259_INTERRUPTS]; - np = find_type_devices("open-pic"); + np = of_find_node_by_type(NULL, "open-pic"); if (np == NULL) return; - root = find_path_device("/"); + root = of_find_node_by_path("/"); if (root) { opprop = (unsigned int *) get_property (root, "platform-open-pic", &oplen); @@ -343,19 +351,15 @@ static void __init chrp_find_openpic(void) oplen /= na * sizeof(unsigned int); } else { struct resource r; - if (of_address_to_resource(np, 0, &r)) - return; + if (of_address_to_resource(np, 0, &r)) { + goto bail; + } opaddr = r.start; oplen = 0; } printk(KERN_INFO "OpenPIC at %lx\n", opaddr); - irq_count = NR_IRQS - NUM_ISA_INTERRUPTS - 4; /* leave room for IPIs */ - prom_get_irq_senses(init_senses, NUM_ISA_INTERRUPTS, NR_IRQS - 4); - /* i8259 cascade is always positive level */ - init_senses[0] = IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE; - iranges = (unsigned int *) get_property(np, "interrupt-ranges", &len); if (iranges == NULL) len = 0; /* non-distributed mpic */ @@ -382,15 +386,12 @@ static void __init chrp_find_openpic(void) if (len > 1) isu_size = iranges[3]; - chrp_mpic = mpic_alloc(opaddr, MPIC_PRIMARY, - isu_size, NUM_ISA_INTERRUPTS, irq_count, - NR_IRQS - 4, init_senses, irq_count, - " MPIC "); + chrp_mpic = mpic_alloc(np, opaddr, MPIC_PRIMARY, + isu_size, 0, " MPIC "); if (chrp_mpic == NULL) { printk(KERN_ERR "Failed to allocate MPIC structure\n"); - return; + goto bail; } - j = na - 1; for (i = 1; i < len; ++i) { iranges += 2; @@ -402,7 +403,10 @@ static void __init chrp_find_openpic(void) } mpic_init(chrp_mpic); - mpic_setup_cascade(NUM_ISA_INTERRUPTS, i8259_irq_cascade, NULL); + ppc_md.get_irq = mpic_get_irq; + bail: + of_node_put(root); + of_node_put(np); } #if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON) @@ -413,14 +417,34 @@ static struct irqaction xmon_irqaction = { }; #endif -void __init chrp_init_IRQ(void) +static void __init chrp_find_8259(void) { - struct device_node *np; + struct device_node *np, *pic = NULL; unsigned long chrp_int_ack = 0; -#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON) - struct device_node *kbd; -#endif + unsigned int cascade_irq; + + /* Look for cascade */ + for_each_node_by_type(np, "interrupt-controller") + if (device_is_compatible(np, "chrp,iic")) { + pic = np; + break; + } + /* Ok, 8259 wasn't found. We need to handle the case where + * we have a pegasos that claims to be chrp but doesn't have + * a proper interrupt tree + */ + if (pic == NULL && chrp_mpic != NULL) { + printk(KERN_ERR "i8259: Not found in device-tree" + " assuming no legacy interrupts\n"); + return; + } + /* Look for intack. In a perfect world, we would look for it on + * the ISA bus that holds the 8259 but heh... Works that way. If + * we ever see a problem, we can try to re-use the pSeries code here. + * Also, Pegasos-type platforms don't have a proper node to start + * from anyway + */ for (np = find_devices("pci"); np != NULL; np = np->next) { unsigned int *addrp = (unsigned int *) get_property(np, "8259-interrupt-acknowledge", NULL); @@ -431,11 +455,29 @@ void __init chrp_init_IRQ(void) break; } if (np == NULL) - printk(KERN_ERR "Cannot find PCI interrupt acknowledge address\n"); + printk(KERN_WARNING "Cannot find PCI interrupt acknowledge" + " address, polling\n"); + + i8259_init(pic, chrp_int_ack); + if (ppc_md.get_irq == NULL) + ppc_md.get_irq = i8259_irq; + if (chrp_mpic != NULL) { + cascade_irq = irq_of_parse_and_map(pic, 0); + if (cascade_irq == NO_IRQ) + printk(KERN_ERR "i8259: failed to map cascade irq\n"); + else + set_irq_chained_handler(cascade_irq, + chrp_8259_cascade); + } +} +void __init chrp_init_IRQ(void) +{ +#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON) + struct device_node *kbd; +#endif chrp_find_openpic(); - - i8259_init(chrp_int_ack, 0); + chrp_find_8259(); if (_chrp_type == _CHRP_Pegasos) ppc_md.get_irq = i8259_irq; @@ -520,10 +562,6 @@ static int __init chrp_probe(void) DMA_MODE_READ = 0x44; DMA_MODE_WRITE = 0x48; isa_io_base = CHRP_ISA_IO_BASE; /* default value */ - ppc_do_canonicalize_irqs = 1; - - /* Assume we have an 8259... */ - __irq_offset_value = NUM_ISA_INTERRUPTS; return 1; } @@ -535,7 +573,6 @@ define_machine(chrp) { .init = chrp_init2, .show_cpuinfo = chrp_show_cpuinfo, .init_IRQ = chrp_init_IRQ, - .get_irq = mpic_get_irq, .pcibios_fixup = chrp_pcibios_fixup, .restart = rtas_restart, .power_off = rtas_power_off, diff --git a/arch/powerpc/platforms/chrp/smp.c b/arch/powerpc/platforms/chrp/smp.c index c298ca1ea680..1d2307e87c30 100644 --- a/arch/powerpc/platforms/chrp/smp.c +++ b/arch/powerpc/platforms/chrp/smp.c @@ -29,7 +29,6 @@ #include <asm/smp.h> #include <asm/residual.h> #include <asm/time.h> -#include <asm/open_pic.h> #include <asm/machdep.h> #include <asm/smp.h> #include <asm/mpic.h> diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c index f70e820e7304..2275e64f3152 100644 --- a/arch/powerpc/platforms/iseries/irq.c +++ b/arch/powerpc/platforms/iseries/irq.c @@ -162,27 +162,6 @@ static void pci_event_handler(struct HvLpEvent *event, struct pt_regs *regs) printk(KERN_ERR "pci_event_handler: NULL event received\n"); } -/* - * This is called by init_IRQ. set in ppc_md.init_IRQ by iSeries_setup.c - * It must be called before the bus walk. - */ -void __init iSeries_init_IRQ(void) -{ - /* Register PCI event handler and open an event path */ - int ret; - - ret = HvLpEvent_registerHandler(HvLpEvent_Type_PciIo, - &pci_event_handler); - if (ret == 0) { - ret = HvLpEvent_openPath(HvLpEvent_Type_PciIo, 0); - if (ret != 0) - printk(KERN_ERR "iseries_init_IRQ: open event path " - "failed with rc 0x%x\n", ret); - } else - printk(KERN_ERR "iseries_init_IRQ: register handler " - "failed with rc 0x%x\n", ret); -} - #define REAL_IRQ_TO_SUBBUS(irq) (((irq) >> 14) & 0xff) #define REAL_IRQ_TO_BUS(irq) ((((irq) >> 6) & 0xff) + 1) #define REAL_IRQ_TO_IDSEL(irq) ((((irq) >> 3) & 7) + 1) @@ -196,7 +175,7 @@ static void iseries_enable_IRQ(unsigned int irq) { u32 bus, dev_id, function, mask; const u32 sub_bus = 0; - unsigned int rirq = virt_irq_to_real_map[irq]; + unsigned int rirq = (unsigned int)irq_map[irq].hwirq; /* The IRQ has already been locked by the caller */ bus = REAL_IRQ_TO_BUS(rirq); @@ -213,7 +192,7 @@ static unsigned int iseries_startup_IRQ(unsigned int irq) { u32 bus, dev_id, function, mask; const u32 sub_bus = 0; - unsigned int rirq = virt_irq_to_real_map[irq]; + unsigned int rirq = (unsigned int)irq_map[irq].hwirq; bus = REAL_IRQ_TO_BUS(rirq); function = REAL_IRQ_TO_FUNC(rirq); @@ -254,7 +233,7 @@ static void iseries_shutdown_IRQ(unsigned int irq) { u32 bus, dev_id, function, mask; const u32 sub_bus = 0; - unsigned int rirq = virt_irq_to_real_map[irq]; + unsigned int rirq = (unsigned int)irq_map[irq].hwirq; /* irq should be locked by the caller */ bus = REAL_IRQ_TO_BUS(rirq); @@ -277,7 +256,7 @@ static void iseries_disable_IRQ(unsigned int irq) { u32 bus, dev_id, function, mask; const u32 sub_bus = 0; - unsigned int rirq = virt_irq_to_real_map[irq]; + unsigned int rirq = (unsigned int)irq_map[irq].hwirq; /* The IRQ has already been locked by the caller */ bus = REAL_IRQ_TO_BUS(rirq); @@ -291,19 +270,19 @@ static void iseries_disable_IRQ(unsigned int irq) static void iseries_end_IRQ(unsigned int irq) { - unsigned int rirq = virt_irq_to_real_map[irq]; + unsigned int rirq = (unsigned int)irq_map[irq].hwirq; HvCallPci_eoi(REAL_IRQ_TO_BUS(rirq), REAL_IRQ_TO_SUBBUS(rirq), (REAL_IRQ_TO_IDSEL(rirq) << 4) + REAL_IRQ_TO_FUNC(rirq)); } -static hw_irq_controller iSeries_IRQ_handler = { - .typename = "iSeries irq controller", - .startup = iseries_startup_IRQ, - .shutdown = iseries_shutdown_IRQ, - .enable = iseries_enable_IRQ, - .disable = iseries_disable_IRQ, - .end = iseries_end_IRQ +static struct irq_chip iseries_pic = { + .typename = "iSeries irq controller", + .startup = iseries_startup_IRQ, + .shutdown = iseries_shutdown_IRQ, + .unmask = iseries_enable_IRQ, + .mask = iseries_disable_IRQ, + .eoi = iseries_end_IRQ }; /* @@ -314,17 +293,14 @@ static hw_irq_controller iSeries_IRQ_handler = { int __init iSeries_allocate_IRQ(HvBusNumber bus, HvSubBusNumber sub_bus, u32 bsubbus) { - int virtirq; unsigned int realirq; u8 idsel = ISERIES_GET_DEVICE_FROM_SUBBUS(bsubbus); u8 function = ISERIES_GET_FUNCTION_FROM_SUBBUS(bsubbus); realirq = (((((sub_bus << 8) + (bus - 1)) << 3) + (idsel - 1)) << 3) + function; - virtirq = virt_irq_create_mapping(realirq); - irq_desc[virtirq].chip = &iSeries_IRQ_handler; - return virtirq; + return irq_create_mapping(NULL, realirq, IRQ_TYPE_NONE); } #endif /* CONFIG_PCI */ @@ -332,10 +308,9 @@ int __init iSeries_allocate_IRQ(HvBusNumber bus, /* * Get the next pending IRQ. */ -int iSeries_get_irq(struct pt_regs *regs) +unsigned int iSeries_get_irq(struct pt_regs *regs) { - /* -2 means ignore this interrupt */ - int irq = -2; + int irq = NO_IRQ_IGNORE; #ifdef CONFIG_SMP if (get_lppaca()->int_dword.fields.ipi_cnt) { @@ -358,9 +333,57 @@ int iSeries_get_irq(struct pt_regs *regs) } spin_unlock(&pending_irqs_lock); if (irq >= NR_IRQS) - irq = -2; + irq = NO_IRQ_IGNORE; } #endif return irq; } + +static int iseries_irq_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw, unsigned int flags) +{ + set_irq_chip_and_handler(virq, &iseries_pic, handle_fasteoi_irq); + + return 0; +} + +static struct irq_host_ops iseries_irq_host_ops = { + .map = iseries_irq_host_map, +}; + +/* + * This is called by init_IRQ. set in ppc_md.init_IRQ by iSeries_setup.c + * It must be called before the bus walk. + */ +void __init iSeries_init_IRQ(void) +{ + /* Register PCI event handler and open an event path */ + struct irq_host *host; + int ret; + + /* + * The Hypervisor only allows us up to 256 interrupt + * sources (the irq number is passed in a u8). + */ + irq_set_virq_count(256); + + /* Create irq host. No need for a revmap since HV will give us + * back our virtual irq number + */ + host = irq_alloc_host(IRQ_HOST_MAP_NOMAP, 0, &iseries_irq_host_ops, 0); + BUG_ON(host == NULL); + irq_set_default_host(host); + + ret = HvLpEvent_registerHandler(HvLpEvent_Type_PciIo, + &pci_event_handler); + if (ret == 0) { + ret = HvLpEvent_openPath(HvLpEvent_Type_PciIo, 0); + if (ret != 0) + printk(KERN_ERR "iseries_init_IRQ: open event path " + "failed with rc 0x%x\n", ret); + } else + printk(KERN_ERR "iseries_init_IRQ: register handler " + "failed with rc 0x%x\n", ret); +} + diff --git a/arch/powerpc/platforms/iseries/irq.h b/arch/powerpc/platforms/iseries/irq.h index 188aa808abd7..1ee8985140e5 100644 --- a/arch/powerpc/platforms/iseries/irq.h +++ b/arch/powerpc/platforms/iseries/irq.h @@ -4,6 +4,6 @@ extern void iSeries_init_IRQ(void); extern int iSeries_allocate_IRQ(HvBusNumber, HvSubBusNumber, u32); extern void iSeries_activate_IRQs(void); -extern int iSeries_get_irq(struct pt_regs *); +extern unsigned int iSeries_get_irq(struct pt_regs *); #endif /* _ISERIES_IRQ_H */ diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index c877074745b2..c9605d773a77 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -294,8 +294,6 @@ static void __init iSeries_init_early(void) { DBG(" -> iSeries_init_early()\n"); - ppc64_interrupt_controller = IC_ISERIES; - #if defined(CONFIG_BLK_DEV_INITRD) /* * If the init RAM disk has been configured and there is @@ -659,12 +657,6 @@ static int __init iseries_probe(void) powerpc_firmware_features |= FW_FEATURE_ISERIES; powerpc_firmware_features |= FW_FEATURE_LPAR; - /* - * The Hypervisor only allows us up to 256 interrupt - * sources (the irq number is passed in a u8). - */ - virt_irq_max = 255; - hpte_init_iSeries(); return 1; diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c index f7170ff86dab..63a1670d3bfd 100644 --- a/arch/powerpc/platforms/maple/pci.c +++ b/arch/powerpc/platforms/maple/pci.c @@ -443,18 +443,23 @@ void __init maple_pci_init(void) int maple_pci_get_legacy_ide_irq(struct pci_dev *pdev, int channel) { struct device_node *np; - int irq = channel ? 15 : 14; + unsigned int defirq = channel ? 15 : 14; + unsigned int irq; if (pdev->vendor != PCI_VENDOR_ID_AMD || pdev->device != PCI_DEVICE_ID_AMD_8111_IDE) - return irq; + return defirq; np = pci_device_to_OF_node(pdev); if (np == NULL) - return irq; - if (np->n_intrs < 2) - return irq; - return np->intrs[channel & 0x1].line; + return defirq; + irq = irq_of_parse_and_map(np, channel & 0x1); + if (irq == NO_IRQ) { + printk("Failed to map onboard IDE interrupt for channel %d\n", + channel); + return defirq; + } + return irq; } /* XXX: To remove once all firmwares are ok */ diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index 5cf90c28b141..cb528c9de4c3 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -11,7 +11,7 @@ * */ -#define DEBUG +#undef DEBUG #include <linux/init.h> #include <linux/errno.h> @@ -198,50 +198,81 @@ static void __init maple_init_early(void) { DBG(" -> maple_init_early\n"); - /* Setup interrupt mapping options */ - ppc64_interrupt_controller = IC_OPEN_PIC; - iommu_init_early_dart(); DBG(" <- maple_init_early\n"); } - -static __init void maple_init_IRQ(void) +/* + * This is almost identical to pSeries and CHRP. We need to make that + * code generic at one point, with appropriate bits in the device-tree to + * identify the presence of an HT APIC + */ +static void __init maple_init_IRQ(void) { - struct device_node *root; + struct device_node *root, *np, *mpic_node = NULL; unsigned int *opprop; - unsigned long opic_addr; + unsigned long openpic_addr = 0; + int naddr, n, i, opplen, has_isus = 0; struct mpic *mpic; - unsigned char senses[128]; - int n; + unsigned int flags = MPIC_PRIMARY; - DBG(" -> maple_init_IRQ\n"); + /* Locate MPIC in the device-tree. Note that there is a bug + * in Maple device-tree where the type of the controller is + * open-pic and not interrupt-controller + */ + for_each_node_by_type(np, "open-pic") { + mpic_node = np; + break; + } + if (mpic_node == NULL) { + printk(KERN_ERR + "Failed to locate the MPIC interrupt controller\n"); + return; + } - /* XXX: Non standard, replace that with a proper openpic/mpic node - * in the device-tree. Find the Open PIC if present */ + /* Find address list in /platform-open-pic */ root = of_find_node_by_path("/"); - opprop = (unsigned int *) get_property(root, - "platform-open-pic", NULL); - if (opprop == 0) - panic("OpenPIC not found !\n"); - - n = prom_n_addr_cells(root); - for (opic_addr = 0; n > 0; --n) - opic_addr = (opic_addr << 32) + *opprop++; + naddr = prom_n_addr_cells(root); + opprop = (unsigned int *) get_property(root, "platform-open-pic", + &opplen); + if (opprop != 0) { + openpic_addr = of_read_number(opprop, naddr); + has_isus = (opplen > naddr); + printk(KERN_DEBUG "OpenPIC addr: %lx, has ISUs: %d\n", + openpic_addr, has_isus); + } of_node_put(root); - /* Obtain sense values from device-tree */ - prom_get_irq_senses(senses, 0, 128); + BUG_ON(openpic_addr == 0); + + /* Check for a big endian MPIC */ + if (get_property(np, "big-endian", NULL) != NULL) + flags |= MPIC_BIG_ENDIAN; - mpic = mpic_alloc(opic_addr, - MPIC_PRIMARY | MPIC_BIG_ENDIAN | - MPIC_BROKEN_U3 | MPIC_WANTS_RESET, - 0, 0, 128, 128, senses, 128, "U3-MPIC"); + /* XXX Maple specific bits */ + flags |= MPIC_BROKEN_U3 | MPIC_WANTS_RESET; + + /* Setup the openpic driver. More device-tree junks, we hard code no + * ISUs for now. I'll have to revisit some stuffs with the folks doing + * the firmware for those + */ + mpic = mpic_alloc(mpic_node, openpic_addr, flags, + /*has_isus ? 16 :*/ 0, 0, " MPIC "); BUG_ON(mpic == NULL); - mpic_init(mpic); - DBG(" <- maple_init_IRQ\n"); + /* Add ISUs */ + opplen /= sizeof(u32); + for (n = 0, i = naddr; i < opplen; i += naddr, n++) { + unsigned long isuaddr = of_read_number(opprop + i, naddr); + mpic_assign_isu(mpic, n, isuaddr); + } + + /* All ISUs are setup, complete initialization */ + mpic_init(mpic); + ppc_md.get_irq = mpic_get_irq; + of_node_put(mpic_node); + of_node_put(root); } static void __init maple_progress(char *s, unsigned short hex) @@ -256,7 +287,9 @@ static void __init maple_progress(char *s, unsigned short hex) static int __init maple_probe(void) { unsigned long root = of_get_flat_dt_root(); - if (!of_flat_dt_is_compatible(root, "Momentum,Maple")) + + if (!of_flat_dt_is_compatible(root, "Momentum,Maple") && + !of_flat_dt_is_compatible(root, "Momentum,Apache")) return 0; /* * On U3, the DART (iommu) must be allocated now since it @@ -277,7 +310,6 @@ define_machine(maple_md) { .setup_arch = maple_setup_arch, .init_early = maple_init_early, .init_IRQ = maple_init_IRQ, - .get_irq = mpic_get_irq, .pcibios_fixup = maple_pcibios_fixup, .pci_get_legacy_ide_irq = maple_pci_get_legacy_ide_irq, .restart = maple_restart, diff --git a/arch/powerpc/platforms/powermac/bootx_init.c b/arch/powerpc/platforms/powermac/bootx_init.c index cb257aeb91f6..e63d52f227ee 100644 --- a/arch/powerpc/platforms/powermac/bootx_init.c +++ b/arch/powerpc/platforms/powermac/bootx_init.c @@ -162,6 +162,8 @@ static void __init bootx_add_chosen_props(unsigned long base, { u32 val; + bootx_dt_add_prop("linux,bootx", NULL, 0, mem_end); + if (bootx_info->kernelParamsOffset) { char *args = (char *)((unsigned long)bootx_info) + bootx_info->kernelParamsOffset; @@ -181,8 +183,25 @@ static void __init bootx_add_chosen_props(unsigned long base, static void __init bootx_add_display_props(unsigned long base, unsigned long *mem_end) { + boot_infos_t *bi = bootx_info; + u32 tmp; + bootx_dt_add_prop("linux,boot-display", NULL, 0, mem_end); bootx_dt_add_prop("linux,opened", NULL, 0, mem_end); + tmp = bi->dispDeviceDepth; + bootx_dt_add_prop("linux,bootx-depth", &tmp, 4, mem_end); + tmp = bi->dispDeviceRect[2] - bi->dispDeviceRect[0]; + bootx_dt_add_prop("linux,bootx-width", &tmp, 4, mem_end); + tmp = bi->dispDeviceRect[3] - bi->dispDeviceRect[1]; + bootx_dt_add_prop("linux,bootx-height", &tmp, 4, mem_end); + tmp = bi->dispDeviceRowBytes; + bootx_dt_add_prop("linux,bootx-linebytes", &tmp, 4, mem_end); + tmp = (u32)bi->dispDeviceBase; + if (tmp == 0) + tmp = (u32)bi->logicalDisplayBase; + tmp += bi->dispDeviceRect[1] * bi->dispDeviceRowBytes; + tmp += bi->dispDeviceRect[0] * ((bi->dispDeviceDepth + 7) / 8); + bootx_dt_add_prop("linux,bootx-addr", &tmp, 4, mem_end); } static void __init bootx_dt_add_string(char *s, unsigned long *mem_end) @@ -211,7 +230,7 @@ static void __init bootx_scan_dt_build_strings(unsigned long base, if (!strcmp(namep, "/chosen")) { DBG(" detected /chosen ! adding properties names !\n"); - bootx_dt_add_string("linux,platform", mem_end); + bootx_dt_add_string("linux,bootx", mem_end); bootx_dt_add_string("linux,stdout-path", mem_end); bootx_dt_add_string("linux,initrd-start", mem_end); bootx_dt_add_string("linux,initrd-end", mem_end); @@ -222,6 +241,11 @@ static void __init bootx_scan_dt_build_strings(unsigned long base, DBG(" detected display ! adding properties names !\n"); bootx_dt_add_string("linux,boot-display", mem_end); bootx_dt_add_string("linux,opened", mem_end); + bootx_dt_add_string("linux,bootx-depth", mem_end); + bootx_dt_add_string("linux,bootx-width", mem_end); + bootx_dt_add_string("linux,bootx-height", mem_end); + bootx_dt_add_string("linux,bootx-linebytes", mem_end); + bootx_dt_add_string("linux,bootx-addr", mem_end); strncpy(bootx_disp_path, namep, 255); } @@ -443,7 +467,14 @@ void __init bootx_init(unsigned long r3, unsigned long r4) if (!BOOT_INFO_IS_V2_COMPATIBLE(bi)) bi->logicalDisplayBase = bi->dispDeviceBase; + /* Fixup depth 16 -> 15 as that's what MacOS calls 16bpp */ + if (bi->dispDeviceDepth == 16) + bi->dispDeviceDepth = 15; + #ifdef CONFIG_BOOTX_TEXT + ptr = (unsigned long)bi->logicalDisplayBase; + ptr += bi->dispDeviceRect[1] * bi->dispDeviceRowBytes; + ptr += bi->dispDeviceRect[0] * ((bi->dispDeviceDepth + 7) / 8); btext_setup_display(bi->dispDeviceRect[2] - bi->dispDeviceRect[0], bi->dispDeviceRect[3] - bi->dispDeviceRect[1], bi->dispDeviceDepth, bi->dispDeviceRowBytes, diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c index ceafaf52a668..8677f50c2586 100644 --- a/arch/powerpc/platforms/powermac/low_i2c.c +++ b/arch/powerpc/platforms/powermac/low_i2c.c @@ -522,10 +522,11 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np) host->speed = KW_I2C_MODE_25KHZ; break; } - if (np->n_intrs > 0) - host->irq = np->intrs[0].line; - else - host->irq = NO_IRQ; + host->irq = irq_of_parse_and_map(np, 0); + if (host->irq == NO_IRQ) + printk(KERN_WARNING + "low_i2c: Failed to map interrupt for %s\n", + np->full_name); host->base = ioremap((*addrp), 0x1000); if (host->base == NULL) { diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c index 41fa2409482a..6a36ea9bf673 100644 --- a/arch/powerpc/platforms/powermac/nvram.c +++ b/arch/powerpc/platforms/powermac/nvram.c @@ -29,6 +29,8 @@ #include <asm/machdep.h> #include <asm/nvram.h> +#include "pmac.h" + #define DEBUG #ifdef DEBUG @@ -80,9 +82,6 @@ static int nvram_partitions[3]; // XXX Turn that into a sem static DEFINE_SPINLOCK(nv_lock); -extern int pmac_newworld; -extern int system_running; - static int (*core99_write_bank)(int bank, u8* datas); static int (*core99_erase_bank)(int bank); diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index d524a915aa86..556b349797e8 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -46,6 +46,9 @@ static int has_uninorth; static struct pci_controller *u3_agp; static struct pci_controller *u4_pcie; static struct pci_controller *u3_ht; +#define has_second_ohare 0 +#else +static int has_second_ohare; #endif /* CONFIG_PPC64 */ extern u8 pci_cache_line_size; @@ -647,6 +650,33 @@ static void __init init_p2pbridge(void) early_write_config_word(hose, bus, devfn, PCI_BRIDGE_CONTROL, val); } +static void __init init_second_ohare(void) +{ + struct device_node *np = of_find_node_by_name(NULL, "pci106b,7"); + unsigned char bus, devfn; + unsigned short cmd; + + if (np == NULL) + return; + + /* This must run before we initialize the PICs since the second + * ohare hosts a PIC that will be accessed there. + */ + if (pci_device_from_OF_node(np, &bus, &devfn) == 0) { + struct pci_controller* hose = + pci_find_hose_for_OF_device(np); + if (!hose) { + printk(KERN_ERR "Can't find PCI hose for OHare2 !\n"); + return; + } + early_read_config_word(hose, bus, devfn, PCI_COMMAND, &cmd); + cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; + cmd &= ~PCI_COMMAND_IO; + early_write_config_word(hose, bus, devfn, PCI_COMMAND, cmd); + } + has_second_ohare = 1; +} + /* * Some Apple desktop machines have a NEC PD720100A USB2 controller * on the motherboard. Open Firmware, on these, will disable the @@ -688,9 +718,6 @@ static void __init fixup_nec_usb2(void) " EHCI, fixing up...\n"); data &= ~1UL; early_write_config_dword(hose, bus, devfn, 0xe4, data); - early_write_config_byte(hose, bus, - devfn | 2, PCI_INTERRUPT_LINE, - nec->intrs[0].line); } } } @@ -958,32 +985,28 @@ static int __init add_bridge(struct device_node *dev) return 0; } -static void __init pcibios_fixup_OF_interrupts(void) +void __init pmac_pcibios_fixup(void) { struct pci_dev* dev = NULL; - /* - * Open Firmware often doesn't initialize the - * PCI_INTERRUPT_LINE config register properly, so we - * should find the device node and apply the interrupt - * obtained from the OF device-tree - */ for_each_pci_dev(dev) { - struct device_node *node; - node = pci_device_to_OF_node(dev); - /* this is the node, see if it has interrupts */ - if (node && node->n_intrs > 0) - dev->irq = node->intrs[0].line; - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); + /* Read interrupt from the device-tree */ + pci_read_irq_line(dev); + + /* Fixup interrupt for the modem/ethernet combo controller. + * on machines with a second ohare chip. + * The number in the device tree (27) is bogus (correct for + * the ethernet-only board but not the combo ethernet/modem + * board). The real interrupt is 28 on the second controller + * -> 28+32 = 60. + */ + if (has_second_ohare && + dev->vendor == PCI_VENDOR_ID_DEC && + dev->device == PCI_DEVICE_ID_DEC_TULIP_PLUS) + dev->irq = irq_create_mapping(NULL, 60, 0); } } -void __init pmac_pcibios_fixup(void) -{ - /* Fixup interrupts according to OF tree */ - pcibios_fixup_OF_interrupts(); -} - #ifdef CONFIG_PPC64 static void __init pmac_fixup_phb_resources(void) { @@ -1071,6 +1094,7 @@ void __init pmac_pci_init(void) #else /* CONFIG_PPC64 */ init_p2pbridge(); + init_second_ohare(); fixup_nec_usb2(); /* We are still having some issues with the Xserve G4, enabling diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c index d6eab8b3f7de..6d66359ec8c8 100644 --- a/arch/powerpc/platforms/powermac/pfunc_base.c +++ b/arch/powerpc/platforms/powermac/pfunc_base.c @@ -24,19 +24,18 @@ static irqreturn_t macio_gpio_irq(int irq, void *data, struct pt_regs *regs) static int macio_do_gpio_irq_enable(struct pmf_function *func) { - if (func->node->n_intrs < 1) + unsigned int irq = irq_of_parse_and_map(func->node, 0); + if (irq == NO_IRQ) return -EINVAL; - - return request_irq(func->node->intrs[0].line, macio_gpio_irq, 0, - func->node->name, func); + return request_irq(irq, macio_gpio_irq, 0, func->node->name, func); } static int macio_do_gpio_irq_disable(struct pmf_function *func) { - if (func->node->n_intrs < 1) + unsigned int irq = irq_of_parse_and_map(func->node, 0); + if (irq == NO_IRQ) return -EINVAL; - - free_irq(func->node->intrs[0].line, func); + free_irq(irq, func); return 0; } diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index c9b09a9e6050..3d328bc1f7e0 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -65,39 +65,36 @@ static u32 level_mask[4]; static DEFINE_SPINLOCK(pmac_pic_lock); -#define GATWICK_IRQ_POOL_SIZE 10 -static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE]; - #define NR_MASK_WORDS ((NR_IRQS + 31) / 32) static unsigned long ppc_lost_interrupts[NR_MASK_WORDS]; +static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; +static int pmac_irq_cascade = -1; +static struct irq_host *pmac_pic_host; -/* - * Mark an irq as "lost". This is only used on the pmac - * since it can lose interrupts (see pmac_set_irq_mask). - * -- Cort - */ -void __set_lost(unsigned long irq_nr, int nokick) +static void __pmac_retrigger(unsigned int irq_nr) { - if (!test_and_set_bit(irq_nr, ppc_lost_interrupts)) { + if (irq_nr >= max_real_irqs && pmac_irq_cascade > 0) { + __set_bit(irq_nr, ppc_lost_interrupts); + irq_nr = pmac_irq_cascade; + mb(); + } + if (!__test_and_set_bit(irq_nr, ppc_lost_interrupts)) { atomic_inc(&ppc_n_lost_interrupts); - if (!nokick) - set_dec(1); + set_dec(1); } } -static void pmac_mask_and_ack_irq(unsigned int irq_nr) +static void pmac_mask_and_ack_irq(unsigned int virq) { - unsigned long bit = 1UL << (irq_nr & 0x1f); - int i = irq_nr >> 5; + unsigned int src = irq_map[virq].hwirq; + unsigned long bit = 1UL << (virq & 0x1f); + int i = virq >> 5; unsigned long flags; - if ((unsigned)irq_nr >= max_irqs) - return; - - clear_bit(irq_nr, ppc_cached_irq_mask); - if (test_and_clear_bit(irq_nr, ppc_lost_interrupts)) - atomic_dec(&ppc_n_lost_interrupts); spin_lock_irqsave(&pmac_pic_lock, flags); + __clear_bit(src, ppc_cached_irq_mask); + if (__test_and_clear_bit(src, ppc_lost_interrupts)) + atomic_dec(&ppc_n_lost_interrupts); out_le32(&pmac_irq_hw[i]->enable, ppc_cached_irq_mask[i]); out_le32(&pmac_irq_hw[i]->ack, bit); do { @@ -109,16 +106,29 @@ static void pmac_mask_and_ack_irq(unsigned int irq_nr) spin_unlock_irqrestore(&pmac_pic_lock, flags); } -static void pmac_set_irq_mask(unsigned int irq_nr, int nokicklost) +static void pmac_ack_irq(unsigned int virq) +{ + unsigned int src = irq_map[virq].hwirq; + unsigned long bit = 1UL << (src & 0x1f); + int i = src >> 5; + unsigned long flags; + + spin_lock_irqsave(&pmac_pic_lock, flags); + if (__test_and_clear_bit(src, ppc_lost_interrupts)) + atomic_dec(&ppc_n_lost_interrupts); + out_le32(&pmac_irq_hw[i]->ack, bit); + (void)in_le32(&pmac_irq_hw[i]->ack); + spin_unlock_irqrestore(&pmac_pic_lock, flags); +} + +static void __pmac_set_irq_mask(unsigned int irq_nr, int nokicklost) { unsigned long bit = 1UL << (irq_nr & 0x1f); int i = irq_nr >> 5; - unsigned long flags; if ((unsigned)irq_nr >= max_irqs) return; - spin_lock_irqsave(&pmac_pic_lock, flags); /* enable unmasked interrupts */ out_le32(&pmac_irq_hw[i]->enable, ppc_cached_irq_mask[i]); @@ -135,71 +145,78 @@ static void pmac_set_irq_mask(unsigned int irq_nr, int nokicklost) * the bit in the flag register or request another interrupt. */ if (bit & ppc_cached_irq_mask[i] & in_le32(&pmac_irq_hw[i]->level)) - __set_lost((ulong)irq_nr, nokicklost); - spin_unlock_irqrestore(&pmac_pic_lock, flags); + __pmac_retrigger(irq_nr); } /* When an irq gets requested for the first client, if it's an * edge interrupt, we clear any previous one on the controller */ -static unsigned int pmac_startup_irq(unsigned int irq_nr) +static unsigned int pmac_startup_irq(unsigned int virq) { - unsigned long bit = 1UL << (irq_nr & 0x1f); - int i = irq_nr >> 5; + unsigned long flags; + unsigned int src = irq_map[virq].hwirq; + unsigned long bit = 1UL << (src & 0x1f); + int i = src >> 5; - if ((irq_desc[irq_nr].status & IRQ_LEVEL) == 0) + spin_lock_irqsave(&pmac_pic_lock, flags); + if ((irq_desc[virq].status & IRQ_LEVEL) == 0) out_le32(&pmac_irq_hw[i]->ack, bit); - set_bit(irq_nr, ppc_cached_irq_mask); - pmac_set_irq_mask(irq_nr, 0); + __set_bit(src, ppc_cached_irq_mask); + __pmac_set_irq_mask(src, 0); + spin_unlock_irqrestore(&pmac_pic_lock, flags); return 0; } -static void pmac_mask_irq(unsigned int irq_nr) +static void pmac_mask_irq(unsigned int virq) { - clear_bit(irq_nr, ppc_cached_irq_mask); - pmac_set_irq_mask(irq_nr, 0); - mb(); + unsigned long flags; + unsigned int src = irq_map[virq].hwirq; + + spin_lock_irqsave(&pmac_pic_lock, flags); + __clear_bit(src, ppc_cached_irq_mask); + __pmac_set_irq_mask(src, 0); + spin_unlock_irqrestore(&pmac_pic_lock, flags); } -static void pmac_unmask_irq(unsigned int irq_nr) +static void pmac_unmask_irq(unsigned int virq) { - set_bit(irq_nr, ppc_cached_irq_mask); - pmac_set_irq_mask(irq_nr, 0); + unsigned long flags; + unsigned int src = irq_map[virq].hwirq; + + spin_lock_irqsave(&pmac_pic_lock, flags); + __set_bit(src, ppc_cached_irq_mask); + __pmac_set_irq_mask(src, 0); + spin_unlock_irqrestore(&pmac_pic_lock, flags); } -static void pmac_end_irq(unsigned int irq_nr) +static int pmac_retrigger(unsigned int virq) { - if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS)) - && irq_desc[irq_nr].action) { - set_bit(irq_nr, ppc_cached_irq_mask); - pmac_set_irq_mask(irq_nr, 1); - } -} + unsigned long flags; + spin_lock_irqsave(&pmac_pic_lock, flags); + __pmac_retrigger(irq_map[virq].hwirq); + spin_unlock_irqrestore(&pmac_pic_lock, flags); + return 1; +} -struct hw_interrupt_type pmac_pic = { +static struct irq_chip pmac_pic = { .typename = " PMAC-PIC ", .startup = pmac_startup_irq, - .enable = pmac_unmask_irq, - .disable = pmac_mask_irq, - .ack = pmac_mask_and_ack_irq, - .end = pmac_end_irq, -}; - -struct hw_interrupt_type gatwick_pic = { - .typename = " GATWICK ", - .startup = pmac_startup_irq, - .enable = pmac_unmask_irq, - .disable = pmac_mask_irq, - .ack = pmac_mask_and_ack_irq, - .end = pmac_end_irq, + .mask = pmac_mask_irq, + .ack = pmac_ack_irq, + .mask_ack = pmac_mask_and_ack_irq, + .unmask = pmac_unmask_irq, + .retrigger = pmac_retrigger, }; static irqreturn_t gatwick_action(int cpl, void *dev_id, struct pt_regs *regs) { + unsigned long flags; int irq, bits; + int rc = IRQ_NONE; + spin_lock_irqsave(&pmac_pic_lock, flags); for (irq = max_irqs; (irq -= 32) >= max_real_irqs; ) { int i = irq >> 5; bits = in_le32(&pmac_irq_hw[i]->event) | ppc_lost_interrupts[i]; @@ -209,17 +226,20 @@ static irqreturn_t gatwick_action(int cpl, void *dev_id, struct pt_regs *regs) if (bits == 0) continue; irq += __ilog2(bits); + spin_unlock_irqrestore(&pmac_pic_lock, flags); __do_IRQ(irq, regs); - return IRQ_HANDLED; + spin_lock_irqsave(&pmac_pic_lock, flags); + rc = IRQ_HANDLED; } - printk("gatwick irq not from gatwick pic\n"); - return IRQ_NONE; + spin_unlock_irqrestore(&pmac_pic_lock, flags); + return rc; } -static int pmac_get_irq(struct pt_regs *regs) +static unsigned int pmac_pic_get_irq(struct pt_regs *regs) { int irq; unsigned long bits = 0; + unsigned long flags; #ifdef CONFIG_SMP void psurge_smp_message_recv(struct pt_regs *); @@ -227,9 +247,10 @@ static int pmac_get_irq(struct pt_regs *regs) /* IPI's are a hack on the powersurge -- Cort */ if ( smp_processor_id() != 0 ) { psurge_smp_message_recv(regs); - return -2; /* ignore, already handled */ + return NO_IRQ_IGNORE; /* ignore, already handled */ } #endif /* CONFIG_SMP */ + spin_lock_irqsave(&pmac_pic_lock, flags); for (irq = max_real_irqs; (irq -= 32) >= 0; ) { int i = irq >> 5; bits = in_le32(&pmac_irq_hw[i]->event) | ppc_lost_interrupts[i]; @@ -241,133 +262,10 @@ static int pmac_get_irq(struct pt_regs *regs) irq += __ilog2(bits); break; } - - return irq; -} - -/* This routine will fix some missing interrupt values in the device tree - * on the gatwick mac-io controller used by some PowerBooks - * - * Walking of OF nodes could use a bit more fixing up here, but it's not - * very important as this is all boot time code on static portions of the - * device-tree. - * - * However, the modifications done to "intrs" will have to be removed and - * replaced with proper updates of the "interrupts" properties or - * AAPL,interrupts, yet to be decided, once the dynamic parsing is there. - */ -static void __init pmac_fix_gatwick_interrupts(struct device_node *gw, - int irq_base) -{ - struct device_node *node; - int count; - - memset(gatwick_int_pool, 0, sizeof(gatwick_int_pool)); - count = 0; - for (node = NULL; (node = of_get_next_child(gw, node)) != NULL;) { - /* Fix SCC */ - if ((strcasecmp(node->name, "escc") == 0) && node->child) { - if (node->child->n_intrs < 3) { - node->child->intrs = &gatwick_int_pool[count]; - count += 3; - } - node->child->n_intrs = 3; - node->child->intrs[0].line = 15+irq_base; - node->child->intrs[1].line = 4+irq_base; - node->child->intrs[2].line = 5+irq_base; - printk(KERN_INFO "irq: fixed SCC on gatwick" - " (%d,%d,%d)\n", - node->child->intrs[0].line, - node->child->intrs[1].line, - node->child->intrs[2].line); - } - /* Fix media-bay & left SWIM */ - if (strcasecmp(node->name, "media-bay") == 0) { - struct device_node* ya_node; - - if (node->n_intrs == 0) - node->intrs = &gatwick_int_pool[count++]; - node->n_intrs = 1; - node->intrs[0].line = 29+irq_base; - printk(KERN_INFO "irq: fixed media-bay on gatwick" - " (%d)\n", node->intrs[0].line); - - ya_node = node->child; - while(ya_node) { - if (strcasecmp(ya_node->name, "floppy") == 0) { - if (ya_node->n_intrs < 2) { - ya_node->intrs = &gatwick_int_pool[count]; - count += 2; - } - ya_node->n_intrs = 2; - ya_node->intrs[0].line = 19+irq_base; - ya_node->intrs[1].line = 1+irq_base; - printk(KERN_INFO "irq: fixed floppy on second controller (%d,%d)\n", - ya_node->intrs[0].line, ya_node->intrs[1].line); - } - if (strcasecmp(ya_node->name, "ata4") == 0) { - if (ya_node->n_intrs < 2) { - ya_node->intrs = &gatwick_int_pool[count]; - count += 2; - } - ya_node->n_intrs = 2; - ya_node->intrs[0].line = 14+irq_base; - ya_node->intrs[1].line = 3+irq_base; - printk(KERN_INFO "irq: fixed ide on second controller (%d,%d)\n", - ya_node->intrs[0].line, ya_node->intrs[1].line); - } - ya_node = ya_node->sibling; - } - } - } - if (count > 10) { - printk("WARNING !! Gatwick interrupt pool overflow\n"); - printk(" GATWICK_IRQ_POOL_SIZE = %d\n", GATWICK_IRQ_POOL_SIZE); - printk(" requested = %d\n", count); - } -} - -/* - * The PowerBook 3400/2400/3500 can have a combo ethernet/modem - * card which includes an ohare chip that acts as a second interrupt - * controller. If we find this second ohare, set it up and fix the - * interrupt value in the device tree for the ethernet chip. - */ -static void __init enable_second_ohare(struct device_node *np) -{ - unsigned char bus, devfn; - unsigned short cmd; - struct device_node *ether; - - /* This code doesn't strictly belong here, it could be part of - * either the PCI initialisation or the feature code. It's kept - * here for historical reasons. - */ - if (pci_device_from_OF_node(np, &bus, &devfn) == 0) { - struct pci_controller* hose = - pci_find_hose_for_OF_device(np); - if (!hose) { - printk(KERN_ERR "Can't find PCI hose for OHare2 !\n"); - return; - } - early_read_config_word(hose, bus, devfn, PCI_COMMAND, &cmd); - cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; - cmd &= ~PCI_COMMAND_IO; - early_write_config_word(hose, bus, devfn, PCI_COMMAND, cmd); - } - - /* Fix interrupt for the modem/ethernet combo controller. The number - * in the device tree (27) is bogus (correct for the ethernet-only - * board but not the combo ethernet/modem board). - * The real interrupt is 28 on the second controller -> 28+32 = 60. - */ - ether = of_find_node_by_name(NULL, "pci1011,14"); - if (ether && ether->n_intrs > 0) { - ether->intrs[0].line = 60; - printk(KERN_INFO "irq: Fixed ethernet IRQ to %d\n", - ether->intrs[0].line); - } - of_node_put(ether); + spin_unlock_irqrestore(&pmac_pic_lock, flags); + if (unlikely(irq < 0)) + return NO_IRQ; + return irq_linear_revmap(pmac_pic_host, irq); } #ifdef CONFIG_XMON @@ -386,17 +284,60 @@ static struct irqaction gatwick_cascade_action = { .name = "cascade", }; +static int pmac_pic_host_match(struct irq_host *h, struct device_node *node) +{ + /* We match all, we don't always have a node anyway */ + return 1; +} + +static int pmac_pic_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw, unsigned int flags) +{ + struct irq_desc *desc = get_irq_desc(virq); + int level; + + if (hw >= max_irqs) + return -EINVAL; + + /* Mark level interrupts, set delayed disable for edge ones and set + * handlers + */ + level = !!(level_mask[hw >> 5] & (1UL << (hw & 0x1f))); + if (level) + desc->status |= IRQ_LEVEL; + else + desc->status |= IRQ_DELAYED_DISABLE; + set_irq_chip_and_handler(virq, &pmac_pic, level ? + handle_level_irq : handle_edge_irq); + return 0; +} + +static int pmac_pic_host_xlate(struct irq_host *h, struct device_node *ct, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, + unsigned int *out_flags) + +{ + *out_hwirq = *intspec; + return 0; +} + +static struct irq_host_ops pmac_pic_host_ops = { + .match = pmac_pic_host_match, + .map = pmac_pic_host_map, + .xlate = pmac_pic_host_xlate, +}; + static void __init pmac_pic_probe_oldstyle(void) { int i; - int irq_cascade = -1; struct device_node *master = NULL; struct device_node *slave = NULL; u8 __iomem *addr; struct resource r; /* Set our get_irq function */ - ppc_md.get_irq = pmac_get_irq; + ppc_md.get_irq = pmac_pic_get_irq; /* * Find the interrupt controller type & node @@ -414,7 +355,6 @@ static void __init pmac_pic_probe_oldstyle(void) if (slave) { max_irqs = 64; level_mask[1] = OHARE_LEVEL_MASK; - enable_second_ohare(slave); } } else if ((master = of_find_node_by_name(NULL, "mac-io")) != NULL) { max_irqs = max_real_irqs = 64; @@ -438,14 +378,18 @@ static void __init pmac_pic_probe_oldstyle(void) max_irqs = 128; level_mask[2] = HEATHROW_LEVEL_MASK; level_mask[3] = 0; - pmac_fix_gatwick_interrupts(slave, max_real_irqs); } } BUG_ON(master == NULL); - /* Set the handler for the main PIC */ - for ( i = 0; i < max_real_irqs ; i++ ) - irq_desc[i].chip = &pmac_pic; + /* + * Allocate an irq host + */ + pmac_pic_host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, max_irqs, + &pmac_pic_host_ops, + max_irqs); + BUG_ON(pmac_pic_host == NULL); + irq_set_default_host(pmac_pic_host); /* Get addresses of first controller if we have a node for it */ BUG_ON(of_address_to_resource(master, 0, &r)); @@ -472,39 +416,38 @@ static void __init pmac_pic_probe_oldstyle(void) pmac_irq_hw[i++] = (volatile struct pmac_irq_hw __iomem *) (addr + 0x10); - irq_cascade = slave->intrs[0].line; + pmac_irq_cascade = irq_of_parse_and_map(slave, 0); printk(KERN_INFO "irq: Found slave Apple PIC %s for %d irqs" " cascade: %d\n", slave->full_name, - max_irqs - max_real_irqs, irq_cascade); + max_irqs - max_real_irqs, pmac_irq_cascade); } of_node_put(slave); - /* disable all interrupts in all controllers */ + /* Disable all interrupts in all controllers */ for (i = 0; i * 32 < max_irqs; ++i) out_le32(&pmac_irq_hw[i]->enable, 0); - /* mark level interrupts */ - for (i = 0; i < max_irqs; i++) - if (level_mask[i >> 5] & (1UL << (i & 0x1f))) - irq_desc[i].status = IRQ_LEVEL; + /* Hookup cascade irq */ + if (slave && pmac_irq_cascade != NO_IRQ) + setup_irq(pmac_irq_cascade, &gatwick_cascade_action); - /* Setup handlers for secondary controller and hook cascade irq*/ - if (slave) { - for ( i = max_real_irqs ; i < max_irqs ; i++ ) - irq_desc[i].chip = &gatwick_pic; - setup_irq(irq_cascade, &gatwick_cascade_action); - } printk(KERN_INFO "irq: System has %d possible interrupts\n", max_irqs); #ifdef CONFIG_XMON - setup_irq(20, &xmon_action); + setup_irq(irq_create_mapping(NULL, 20, 0), &xmon_action); #endif } #endif /* CONFIG_PPC32 */ -static int pmac_u3_cascade(struct pt_regs *regs, void *data) +static void pmac_u3_cascade(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs) { - return mpic_get_one_irq((struct mpic *)data, regs); + struct mpic *mpic = desc->handler_data; + + unsigned int cascade_irq = mpic_get_one_irq(mpic, regs); + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq, regs); + desc->chip->eoi(irq); } static void __init pmac_pic_setup_mpic_nmi(struct mpic *mpic) @@ -514,21 +457,20 @@ static void __init pmac_pic_setup_mpic_nmi(struct mpic *mpic) int nmi_irq; pswitch = of_find_node_by_name(NULL, "programmer-switch"); - if (pswitch && pswitch->n_intrs) { - nmi_irq = pswitch->intrs[0].line; - mpic_irq_set_priority(nmi_irq, 9); - setup_irq(nmi_irq, &xmon_action); + if (pswitch) { + nmi_irq = irq_of_parse_and_map(pswitch, 0); + if (nmi_irq != NO_IRQ) { + mpic_irq_set_priority(nmi_irq, 9); + setup_irq(nmi_irq, &xmon_action); + } + of_node_put(pswitch); } - of_node_put(pswitch); #endif /* defined(CONFIG_XMON) && defined(CONFIG_PPC32) */ } static struct mpic * __init pmac_setup_one_mpic(struct device_node *np, int master) { - unsigned char senses[128]; - int offset = master ? 0 : 128; - int count = master ? 128 : 124; const char *name = master ? " MPIC 1 " : " MPIC 2 "; struct resource r; struct mpic *mpic; @@ -541,8 +483,6 @@ static struct mpic * __init pmac_setup_one_mpic(struct device_node *np, pmac_call_feature(PMAC_FTR_ENABLE_MPIC, np, 0, 0); - prom_get_irq_senses(senses, offset, offset + count); - flags |= MPIC_WANTS_RESET; if (get_property(np, "big-endian", NULL)) flags |= MPIC_BIG_ENDIAN; @@ -553,8 +493,7 @@ static struct mpic * __init pmac_setup_one_mpic(struct device_node *np, if (master && (flags & MPIC_BIG_ENDIAN)) flags |= MPIC_BROKEN_U3; - mpic = mpic_alloc(r.start, flags, 0, offset, count, master ? 252 : 0, - senses, count, name); + mpic = mpic_alloc(np, r.start, flags, 0, 0, name); if (mpic == NULL) return NULL; @@ -567,6 +506,7 @@ static int __init pmac_pic_probe_mpic(void) { struct mpic *mpic1, *mpic2; struct device_node *np, *master = NULL, *slave = NULL; + unsigned int cascade; /* We can have up to 2 MPICs cascaded */ for (np = NULL; (np = of_find_node_by_type(np, "open-pic")) @@ -603,8 +543,15 @@ static int __init pmac_pic_probe_mpic(void) of_node_put(master); /* No slave, let's go out */ - if (slave == NULL || slave->n_intrs < 1) + if (slave == NULL) + return 0; + + /* Get/Map slave interrupt */ + cascade = irq_of_parse_and_map(slave, 0); + if (cascade == NO_IRQ) { + printk(KERN_ERR "Failed to map cascade IRQ\n"); return 0; + } mpic2 = pmac_setup_one_mpic(slave, 0); if (mpic2 == NULL) { @@ -612,7 +559,8 @@ static int __init pmac_pic_probe_mpic(void) of_node_put(slave); return 0; } - mpic_setup_cascade(slave->intrs[0].line, pmac_u3_cascade, mpic2); + set_irq_data(cascade, mpic2); + set_irq_chained_handler(cascade, pmac_u3_cascade); of_node_put(slave); return 0; @@ -621,6 +569,19 @@ static int __init pmac_pic_probe_mpic(void) void __init pmac_pic_init(void) { + unsigned int flags = 0; + + /* We configure the OF parsing based on our oldworld vs. newworld + * platform type and wether we were booted by BootX. + */ +#ifdef CONFIG_PPC32 + if (!pmac_newworld) + flags |= OF_IMAP_OLDWORLD_MAC; + if (get_property(of_chosen, "linux,bootx", NULL) != NULL) + flags |= OF_IMAP_NO_PHANDLE; + of_irq_map_init(flags); +#endif /* CONFIG_PPC_32 */ + /* We first try to detect Apple's new Core99 chipset, since mac-io * is quite different on those machines and contains an IBM MPIC2. */ @@ -643,6 +604,7 @@ unsigned long sleep_save_mask[2]; /* This used to be passed by the PMU driver but that link got * broken with the new driver model. We use this tweak for now... + * We really want to do things differently though... */ static int pmacpic_find_viaint(void) { @@ -656,7 +618,7 @@ static int pmacpic_find_viaint(void) np = of_find_node_by_name(NULL, "via-pmu"); if (np == NULL) goto not_found; - viaint = np->intrs[0].line; + viaint = irq_of_parse_and_map(np, 0);; #endif /* CONFIG_ADB_PMU */ not_found: diff --git a/arch/powerpc/platforms/powermac/pmac.h b/arch/powerpc/platforms/powermac/pmac.h index 21c7b0f8f329..94e7b24b840b 100644 --- a/arch/powerpc/platforms/powermac/pmac.h +++ b/arch/powerpc/platforms/powermac/pmac.h @@ -12,6 +12,8 @@ struct rtc_time; +extern int pmac_newworld; + extern long pmac_time_init(void); extern unsigned long pmac_get_boot_time(void); extern void pmac_get_rtc_time(struct rtc_time *); diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 8654b5f07836..31a9da769fa2 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -613,9 +613,6 @@ static void __init pmac_init_early(void) udbg_adb_init(!!strstr(cmd_line, "btextdbg")); #ifdef CONFIG_PPC64 - /* Setup interrupt mapping options */ - ppc64_interrupt_controller = IC_OPEN_PIC; - iommu_init_early_dart(); #endif } diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 9639c66b453d..9df783088b61 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -72,32 +72,62 @@ static irqreturn_t ras_error_interrupt(int irq, void *dev_id, /* #define DEBUG */ -static void request_ras_irqs(struct device_node *np, char *propname, + +static void request_ras_irqs(struct device_node *np, irqreturn_t (*handler)(int, void *, struct pt_regs *), const char *name) { - unsigned int *ireg, len, i; - int virq, n_intr; - - ireg = (unsigned int *)get_property(np, propname, &len); - if (ireg == NULL) - return; - n_intr = prom_n_intr_cells(np); - len /= n_intr * sizeof(*ireg); - - for (i = 0; i < len; i++) { - virq = virt_irq_create_mapping(*ireg); - if (virq == NO_IRQ) { - printk(KERN_ERR "Unable to allocate interrupt " - "number for %s\n", np->full_name); - return; + int i, index, count = 0; + struct of_irq oirq; + u32 *opicprop; + unsigned int opicplen; + unsigned int virqs[16]; + + /* Check for obsolete "open-pic-interrupt" property. If present, then + * map those interrupts using the default interrupt host and default + * trigger + */ + opicprop = (u32 *)get_property(np, "open-pic-interrupt", &opicplen); + if (opicprop) { + opicplen /= sizeof(u32); + for (i = 0; i < opicplen; i++) { + if (count > 15) + break; + virqs[count] = irq_create_mapping(NULL, *(opicprop++), + IRQ_TYPE_NONE); + if (virqs[count] == NO_IRQ) + printk(KERN_ERR "Unable to allocate interrupt " + "number for %s\n", np->full_name); + else + count++; + } - if (request_irq(irq_offset_up(virq), handler, 0, name, NULL)) { + } + /* Else use normal interrupt tree parsing */ + else { + /* First try to do a proper OF tree parsing */ + for (index = 0; of_irq_map_one(np, index, &oirq) == 0; + index++) { + if (count > 15) + break; + virqs[count] = irq_create_of_mapping(oirq.controller, + oirq.specifier, + oirq.size); + if (virqs[count] == NO_IRQ) + printk(KERN_ERR "Unable to allocate interrupt " + "number for %s\n", np->full_name); + else + count++; + } + } + + /* Now request them */ + for (i = 0; i < count; i++) { + if (request_irq(virqs[i], handler, 0, name, NULL)) { printk(KERN_ERR "Unable to request interrupt %d for " - "%s\n", irq_offset_up(virq), np->full_name); + "%s\n", virqs[i], np->full_name); return; } - ireg += n_intr; } } @@ -115,20 +145,14 @@ static int __init init_ras_IRQ(void) /* Internal Errors */ np = of_find_node_by_path("/event-sources/internal-errors"); if (np != NULL) { - request_ras_irqs(np, "open-pic-interrupt", ras_error_interrupt, - "RAS_ERROR"); - request_ras_irqs(np, "interrupts", ras_error_interrupt, - "RAS_ERROR"); + request_ras_irqs(np, ras_error_interrupt, "RAS_ERROR"); of_node_put(np); } /* EPOW Events */ np = of_find_node_by_path("/event-sources/epow-events"); if (np != NULL) { - request_ras_irqs(np, "open-pic-interrupt", ras_epow_interrupt, - "RAS_EPOW"); - request_ras_irqs(np, "interrupts", ras_epow_interrupt, - "RAS_EPOW"); + request_ras_irqs(np, ras_epow_interrupt, "RAS_EPOW"); of_node_put(np); } @@ -162,7 +186,7 @@ ras_epow_interrupt(int irq, void *dev_id, struct pt_regs * regs) status = rtas_call(ras_check_exception_token, 6, 1, NULL, RAS_VECTOR_OFFSET, - virt_irq_to_real(irq_offset_down(irq)), + irq_map[irq].hwirq, RTAS_EPOW_WARNING | RTAS_POWERMGM_EVENTS, critical, __pa(&ras_log_buf), rtas_get_error_log_max()); @@ -198,7 +222,7 @@ ras_error_interrupt(int irq, void *dev_id, struct pt_regs * regs) status = rtas_call(ras_check_exception_token, 6, 1, NULL, RAS_VECTOR_OFFSET, - virt_irq_to_real(irq_offset_down(irq)), + irq_map[irq].hwirq, RTAS_INTERNAL_ERROR, 1 /*Time Critical */, __pa(&ras_log_buf), rtas_get_error_log_max()); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 999509d28af8..54a52437265c 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -76,6 +76,9 @@ #define DBG(fmt...) #endif +/* move those away to a .h */ +extern void smp_init_pseries_mpic(void); +extern void smp_init_pseries_xics(void); extern void find_udbg_vterm(void); int fwnmi_active; /* TRUE if an FWNMI handler is present */ @@ -83,7 +86,7 @@ int fwnmi_active; /* TRUE if an FWNMI handler is present */ static void pseries_shared_idle_sleep(void); static void pseries_dedicated_idle_sleep(void); -struct mpic *pSeries_mpic; +static struct device_node *pSeries_mpic_node; static void pSeries_show_cpuinfo(struct seq_file *m) { @@ -118,63 +121,92 @@ static void __init fwnmi_init(void) fwnmi_active = 1; } -static void __init pSeries_init_mpic(void) +void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs) { - unsigned int *addrp; - struct device_node *np; - unsigned long intack = 0; - - /* All ISUs are setup, complete initialization */ - mpic_init(pSeries_mpic); - - /* Check what kind of cascade ACK we have */ - if (!(np = of_find_node_by_name(NULL, "pci")) - || !(addrp = (unsigned int *) - get_property(np, "8259-interrupt-acknowledge", NULL))) - printk(KERN_ERR "Cannot find pci to get ack address\n"); - else - intack = addrp[prom_n_addr_cells(np)-1]; - of_node_put(np); - - /* Setup the legacy interrupts & controller */ - i8259_init(intack, 0); - - /* Hook cascade to mpic */ - mpic_setup_cascade(NUM_ISA_INTERRUPTS, i8259_irq_cascade, NULL); + unsigned int cascade_irq = i8259_irq(regs); + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq, regs); + desc->chip->eoi(irq); } -static void __init pSeries_setup_mpic(void) +static void __init pseries_mpic_init_IRQ(void) { + struct device_node *np, *old, *cascade = NULL; + unsigned int *addrp; + unsigned long intack = 0; unsigned int *opprop; unsigned long openpic_addr = 0; - unsigned char senses[NR_IRQS - NUM_ISA_INTERRUPTS]; - struct device_node *root; - int irq_count; + unsigned int cascade_irq; + int naddr, n, i, opplen; + struct mpic *mpic; - /* Find the Open PIC if present */ - root = of_find_node_by_path("/"); - opprop = (unsigned int *) get_property(root, "platform-open-pic", NULL); + np = of_find_node_by_path("/"); + naddr = prom_n_addr_cells(np); + opprop = (unsigned int *) get_property(np, "platform-open-pic", &opplen); if (opprop != 0) { - int n = prom_n_addr_cells(root); - - for (openpic_addr = 0; n > 0; --n) - openpic_addr = (openpic_addr << 32) + *opprop++; + openpic_addr = of_read_number(opprop, naddr); printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr); } - of_node_put(root); + of_node_put(np); BUG_ON(openpic_addr == 0); - /* Get the sense values from OF */ - prom_get_irq_senses(senses, NUM_ISA_INTERRUPTS, NR_IRQS); - /* Setup the openpic driver */ - irq_count = NR_IRQS - NUM_ISA_INTERRUPTS - 4; /* leave room for IPIs */ - pSeries_mpic = mpic_alloc(openpic_addr, MPIC_PRIMARY, - 16, 16, irq_count, /* isu size, irq offset, irq count */ - NR_IRQS - 4, /* ipi offset */ - senses, irq_count, /* sense & sense size */ - " MPIC "); + mpic = mpic_alloc(pSeries_mpic_node, openpic_addr, + MPIC_PRIMARY, + 16, 250, /* isu size, irq count */ + " MPIC "); + BUG_ON(mpic == NULL); + + /* Add ISUs */ + opplen /= sizeof(u32); + for (n = 0, i = naddr; i < opplen; i += naddr, n++) { + unsigned long isuaddr = of_read_number(opprop + i, naddr); + mpic_assign_isu(mpic, n, isuaddr); + } + + /* All ISUs are setup, complete initialization */ + mpic_init(mpic); + + /* Look for cascade */ + for_each_node_by_type(np, "interrupt-controller") + if (device_is_compatible(np, "chrp,iic")) { + cascade = np; + break; + } + if (cascade == NULL) + return; + + cascade_irq = irq_of_parse_and_map(cascade, 0); + if (cascade == NO_IRQ) { + printk(KERN_ERR "xics: failed to map cascade interrupt"); + return; + } + + /* Check ACK type */ + for (old = of_node_get(cascade); old != NULL ; old = np) { + np = of_get_parent(old); + of_node_put(old); + if (np == NULL) + break; + if (strcmp(np->name, "pci") != 0) + continue; + addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", + NULL); + if (addrp == NULL) + continue; + naddr = prom_n_addr_cells(np); + intack = addrp[naddr-1]; + if (naddr > 1) + intack |= ((unsigned long)addrp[naddr-2]) << 32; + } + if (intack) + printk(KERN_DEBUG "mpic: PCI 8259 intack at 0x%016lx\n", + intack); + i8259_init(cascade, intack); + of_node_put(cascade); + set_irq_chained_handler(cascade_irq, pseries_8259_cascade); } static void pseries_lpar_enable_pmcs(void) @@ -192,23 +224,67 @@ static void pseries_lpar_enable_pmcs(void) get_lppaca()->pmcregs_in_use = 1; } -static void __init pSeries_setup_arch(void) +#ifdef CONFIG_KEXEC +static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary) { - /* Fixup ppc_md depending on the type of interrupt controller */ - if (ppc64_interrupt_controller == IC_OPEN_PIC) { - ppc_md.init_IRQ = pSeries_init_mpic; - ppc_md.get_irq = mpic_get_irq; - /* Allocate the mpic now, so that find_and_init_phbs() can - * fill the ISUs */ - pSeries_setup_mpic(); - } else { - ppc_md.init_IRQ = xics_init_IRQ; - ppc_md.get_irq = xics_get_irq; + mpic_teardown_this_cpu(secondary); +} + +static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary) +{ + /* Don't risk a hypervisor call if we're crashing */ + if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) { + unsigned long vpa = __pa(get_lppaca()); + + if (unregister_vpa(hard_smp_processor_id(), vpa)) { + printk("VPA deregistration of cpu %u (hw_cpu_id %d) " + "failed\n", smp_processor_id(), + hard_smp_processor_id()); + } } + xics_teardown_cpu(secondary); +} +#endif /* CONFIG_KEXEC */ +static void __init pseries_discover_pic(void) +{ + struct device_node *np; + char *typep; + + for (np = NULL; (np = of_find_node_by_name(np, + "interrupt-controller"));) { + typep = (char *)get_property(np, "compatible", NULL); + if (strstr(typep, "open-pic")) { + pSeries_mpic_node = of_node_get(np); + ppc_md.init_IRQ = pseries_mpic_init_IRQ; + ppc_md.get_irq = mpic_get_irq; +#ifdef CONFIG_KEXEC + ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_mpic; +#endif +#ifdef CONFIG_SMP + smp_init_pseries_mpic(); +#endif + return; + } else if (strstr(typep, "ppc-xicp")) { + ppc_md.init_IRQ = xics_init_IRQ; +#ifdef CONFIG_KEXEC + ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_xics; +#endif #ifdef CONFIG_SMP - smp_init_pSeries(); + smp_init_pseries_xics(); #endif + return; + } + } + printk(KERN_ERR "pSeries_discover_pic: failed to recognize" + " interrupt-controller\n"); +} + +static void __init pSeries_setup_arch(void) +{ + /* Discover PIC type and setup ppc_md accordingly */ + pseries_discover_pic(); + /* openpic global configuration register (64-bit format). */ /* openpic Interrupt Source Unit pointer (64-bit format). */ /* python0 facility area (mmio) (64-bit format) REAL address. */ @@ -260,41 +336,11 @@ static int __init pSeries_init_panel(void) } arch_initcall(pSeries_init_panel); -static void __init pSeries_discover_pic(void) -{ - struct device_node *np; - char *typep; - - /* - * Setup interrupt mapping options that are needed for finish_device_tree - * to properly parse the OF interrupt tree & do the virtual irq mapping - */ - __irq_offset_value = NUM_ISA_INTERRUPTS; - ppc64_interrupt_controller = IC_INVALID; - for (np = NULL; (np = of_find_node_by_name(np, "interrupt-controller"));) { - typep = (char *)get_property(np, "compatible", NULL); - if (strstr(typep, "open-pic")) { - ppc64_interrupt_controller = IC_OPEN_PIC; - break; - } else if (strstr(typep, "ppc-xicp")) { - ppc64_interrupt_controller = IC_PPC_XIC; - break; - } - } - if (ppc64_interrupt_controller == IC_INVALID) - printk("pSeries_discover_pic: failed to recognize" - " interrupt-controller\n"); - -} - static void pSeries_mach_cpu_die(void) { local_irq_disable(); idle_task_exit(); - /* Some hardware requires clearing the CPPR, while other hardware does not - * it is safe either way - */ - pSeriesLP_cppr_info(0, 0); + xics_teardown_cpu(0); rtas_stop_self(); /* Should never get here... */ BUG(); @@ -332,8 +378,6 @@ static void __init pSeries_init_early(void) iommu_init_early_pSeries(); - pSeries_discover_pic(); - DBG(" <- pSeries_init_early()\n"); } @@ -505,27 +549,6 @@ static int pSeries_pci_probe_mode(struct pci_bus *bus) return PCI_PROBE_NORMAL; } -#ifdef CONFIG_KEXEC -static void pseries_kexec_cpu_down(int crash_shutdown, int secondary) -{ - /* Don't risk a hypervisor call if we're crashing */ - if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) { - unsigned long vpa = __pa(get_lppaca()); - - if (unregister_vpa(hard_smp_processor_id(), vpa)) { - printk("VPA deregistration of cpu %u (hw_cpu_id %d) " - "failed\n", smp_processor_id(), - hard_smp_processor_id()); - } - } - - if (ppc64_interrupt_controller == IC_OPEN_PIC) - mpic_teardown_this_cpu(secondary); - else - xics_teardown_cpu(secondary); -} -#endif - define_machine(pseries) { .name = "pSeries", .probe = pSeries_probe, @@ -550,7 +573,6 @@ define_machine(pseries) { .system_reset_exception = pSeries_system_reset_exception, .machine_check_exception = pSeries_machine_check_exception, #ifdef CONFIG_KEXEC - .kexec_cpu_down = pseries_kexec_cpu_down, .machine_kexec = default_machine_kexec, .machine_kexec_prepare = default_machine_kexec_prepare, .machine_crash_shutdown = default_machine_crash_shutdown, diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index 4ad144df49c2..ac61098ff401 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -416,27 +416,12 @@ static struct smp_ops_t pSeries_xics_smp_ops = { #endif /* This is called very early */ -void __init smp_init_pSeries(void) +static void __init smp_init_pseries(void) { int i; DBG(" -> smp_init_pSeries()\n"); - switch (ppc64_interrupt_controller) { -#ifdef CONFIG_MPIC - case IC_OPEN_PIC: - smp_ops = &pSeries_mpic_smp_ops; - break; -#endif -#ifdef CONFIG_XICS - case IC_PPC_XIC: - smp_ops = &pSeries_xics_smp_ops; - break; -#endif - default: - panic("Invalid interrupt controller"); - } - #ifdef CONFIG_HOTPLUG_CPU smp_ops->cpu_disable = pSeries_cpu_disable; smp_ops->cpu_die = pSeries_cpu_die; @@ -471,3 +456,18 @@ void __init smp_init_pSeries(void) DBG(" <- smp_init_pSeries()\n"); } +#ifdef CONFIG_MPIC +void __init smp_init_pseries_mpic(void) +{ + smp_ops = &pSeries_mpic_smp_ops; + + smp_init_pseries(); +} +#endif + +void __init smp_init_pseries_xics(void) +{ + smp_ops = &pSeries_xics_smp_ops; + + smp_init_pseries(); +} diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 2ffebe31cb2d..716972aa9777 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -8,6 +8,9 @@ * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ + +#undef DEBUG + #include <linux/types.h> #include <linux/threads.h> #include <linux/kernel.h> @@ -19,6 +22,7 @@ #include <linux/gfp.h> #include <linux/radix-tree.h> #include <linux/cpu.h> + #include <asm/firmware.h> #include <asm/prom.h> #include <asm/io.h> @@ -31,26 +35,6 @@ #include "xics.h" -static unsigned int xics_startup(unsigned int irq); -static void xics_enable_irq(unsigned int irq); -static void xics_disable_irq(unsigned int irq); -static void xics_mask_and_ack_irq(unsigned int irq); -static void xics_end_irq(unsigned int irq); -static void xics_set_affinity(unsigned int irq_nr, cpumask_t cpumask); - -static struct hw_interrupt_type xics_pic = { - .typename = " XICS ", - .startup = xics_startup, - .enable = xics_enable_irq, - .disable = xics_disable_irq, - .ack = xics_mask_and_ack_irq, - .end = xics_end_irq, - .set_affinity = xics_set_affinity -}; - -/* This is used to map real irq numbers to virtual */ -static struct radix_tree_root irq_map = RADIX_TREE_INIT(GFP_ATOMIC); - #define XICS_IPI 2 #define XICS_IRQ_SPURIOUS 0 @@ -81,12 +65,12 @@ struct xics_ipl { static struct xics_ipl __iomem *xics_per_cpu[NR_CPUS]; -static int xics_irq_8259_cascade = 0; -static int xics_irq_8259_cascade_real = 0; static unsigned int default_server = 0xFF; static unsigned int default_distrib_server = 0; static unsigned int interrupt_server_size = 8; +static struct irq_host *xics_host; + /* * XICS only has a single IPI, so encode the messages per CPU */ @@ -98,48 +82,34 @@ static int ibm_set_xive; static int ibm_int_on; static int ibm_int_off; -typedef struct { - int (*xirr_info_get)(int cpu); - void (*xirr_info_set)(int cpu, int val); - void (*cppr_info)(int cpu, u8 val); - void (*qirr_info)(int cpu, u8 val); -} xics_ops; +/* Direct HW low level accessors */ -/* SMP */ -static int pSeries_xirr_info_get(int n_cpu) +static inline unsigned int direct_xirr_info_get(int n_cpu) { return in_be32(&xics_per_cpu[n_cpu]->xirr.word); } -static void pSeries_xirr_info_set(int n_cpu, int value) +static inline void direct_xirr_info_set(int n_cpu, int value) { out_be32(&xics_per_cpu[n_cpu]->xirr.word, value); } -static void pSeries_cppr_info(int n_cpu, u8 value) +static inline void direct_cppr_info(int n_cpu, u8 value) { out_8(&xics_per_cpu[n_cpu]->xirr.bytes[0], value); } -static void pSeries_qirr_info(int n_cpu, u8 value) +static inline void direct_qirr_info(int n_cpu, u8 value) { out_8(&xics_per_cpu[n_cpu]->qirr.bytes[0], value); } -static xics_ops pSeries_ops = { - pSeries_xirr_info_get, - pSeries_xirr_info_set, - pSeries_cppr_info, - pSeries_qirr_info -}; -static xics_ops *ops = &pSeries_ops; +/* LPAR low level accessors */ -/* LPAR */ - static inline long plpar_eoi(unsigned long xirr) { return plpar_hcall_norets(H_EOI, xirr); @@ -161,7 +131,7 @@ static inline long plpar_xirr(unsigned long *xirr_ret) return plpar_hcall(H_XIRR, 0, 0, 0, 0, xirr_ret, &dummy, &dummy); } -static int pSeriesLP_xirr_info_get(int n_cpu) +static inline unsigned int lpar_xirr_info_get(int n_cpu) { unsigned long lpar_rc; unsigned long return_value; @@ -169,10 +139,10 @@ static int pSeriesLP_xirr_info_get(int n_cpu) lpar_rc = plpar_xirr(&return_value); if (lpar_rc != H_SUCCESS) panic(" bad return code xirr - rc = %lx \n", lpar_rc); - return (int)return_value; + return (unsigned int)return_value; } -static void pSeriesLP_xirr_info_set(int n_cpu, int value) +static inline void lpar_xirr_info_set(int n_cpu, int value) { unsigned long lpar_rc; unsigned long val64 = value & 0xffffffff; @@ -183,7 +153,7 @@ static void pSeriesLP_xirr_info_set(int n_cpu, int value) val64); } -void pSeriesLP_cppr_info(int n_cpu, u8 value) +static inline void lpar_cppr_info(int n_cpu, u8 value) { unsigned long lpar_rc; @@ -192,7 +162,7 @@ void pSeriesLP_cppr_info(int n_cpu, u8 value) panic("bad return code cppr - rc = %lx\n", lpar_rc); } -static void pSeriesLP_qirr_info(int n_cpu , u8 value) +static inline void lpar_qirr_info(int n_cpu , u8 value) { unsigned long lpar_rc; @@ -201,43 +171,16 @@ static void pSeriesLP_qirr_info(int n_cpu , u8 value) panic("bad return code qirr - rc = %lx\n", lpar_rc); } -xics_ops pSeriesLP_ops = { - pSeriesLP_xirr_info_get, - pSeriesLP_xirr_info_set, - pSeriesLP_cppr_info, - pSeriesLP_qirr_info -}; - -static unsigned int xics_startup(unsigned int virq) -{ - unsigned int irq; - - irq = irq_offset_down(virq); - if (radix_tree_insert(&irq_map, virt_irq_to_real(irq), - &virt_irq_to_real_map[irq]) == -ENOMEM) - printk(KERN_CRIT "Out of memory creating real -> virtual" - " IRQ mapping for irq %u (real 0x%x)\n", - virq, virt_irq_to_real(irq)); - xics_enable_irq(virq); - return 0; /* return value is ignored */ -} -static unsigned int real_irq_to_virt(unsigned int real_irq) -{ - unsigned int *ptr; +/* High level handlers and init code */ - ptr = radix_tree_lookup(&irq_map, real_irq); - if (ptr == NULL) - return NO_IRQ; - return ptr - virt_irq_to_real_map; -} #ifdef CONFIG_SMP -static int get_irq_server(unsigned int irq) +static int get_irq_server(unsigned int virq) { unsigned int server; /* For the moment only implement delivery to all cpus or one cpu */ - cpumask_t cpumask = irq_desc[irq].affinity; + cpumask_t cpumask = irq_desc[virq].affinity; cpumask_t tmp = CPU_MASK_NONE; if (!distribute_irqs) @@ -258,23 +201,28 @@ static int get_irq_server(unsigned int irq) } #else -static int get_irq_server(unsigned int irq) +static int get_irq_server(unsigned int virq) { return default_server; } #endif -static void xics_enable_irq(unsigned int virq) + +static void xics_unmask_irq(unsigned int virq) { unsigned int irq; int call_status; unsigned int server; - irq = virt_irq_to_real(irq_offset_down(virq)); - if (irq == XICS_IPI) + pr_debug("xics: unmask virq %d\n", virq); + + irq = (unsigned int)irq_map[virq].hwirq; + pr_debug(" -> map to hwirq 0x%x\n", irq); + if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) return; server = get_irq_server(virq); + call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server, DEFAULT_PRIORITY); if (call_status != 0) { @@ -293,7 +241,7 @@ static void xics_enable_irq(unsigned int virq) } } -static void xics_disable_real_irq(unsigned int irq) +static void xics_mask_real_irq(unsigned int irq) { int call_status; unsigned int server; @@ -318,75 +266,86 @@ static void xics_disable_real_irq(unsigned int irq) } } -static void xics_disable_irq(unsigned int virq) +static void xics_mask_irq(unsigned int virq) { unsigned int irq; - irq = virt_irq_to_real(irq_offset_down(virq)); - xics_disable_real_irq(irq); + pr_debug("xics: mask virq %d\n", virq); + + irq = (unsigned int)irq_map[virq].hwirq; + if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) + return; + xics_mask_real_irq(irq); +} + +static unsigned int xics_startup(unsigned int virq) +{ + unsigned int irq; + + /* force a reverse mapping of the interrupt so it gets in the cache */ + irq = (unsigned int)irq_map[virq].hwirq; + irq_radix_revmap(xics_host, irq); + + /* unmask it */ + xics_unmask_irq(virq); + return 0; } -static void xics_end_irq(unsigned int irq) +static void xics_eoi_direct(unsigned int virq) { int cpu = smp_processor_id(); + unsigned int irq = (unsigned int)irq_map[virq].hwirq; iosync(); - ops->xirr_info_set(cpu, ((0xff << 24) | - (virt_irq_to_real(irq_offset_down(irq))))); - + direct_xirr_info_set(cpu, (0xff << 24) | irq); } -static void xics_mask_and_ack_irq(unsigned int irq) + +static void xics_eoi_lpar(unsigned int virq) { int cpu = smp_processor_id(); + unsigned int irq = (unsigned int)irq_map[virq].hwirq; - if (irq < irq_offset_value()) { - i8259_pic.ack(irq); - iosync(); - ops->xirr_info_set(cpu, ((0xff<<24) | - xics_irq_8259_cascade_real)); - iosync(); - } + iosync(); + lpar_xirr_info_set(cpu, (0xff << 24) | irq); } -int xics_get_irq(struct pt_regs *regs) +static inline unsigned int xics_remap_irq(unsigned int vec) { - unsigned int cpu = smp_processor_id(); - unsigned int vec; - int irq; + unsigned int irq; - vec = ops->xirr_info_get(cpu); - /* (vec >> 24) == old priority */ vec &= 0x00ffffff; - /* for sanity, this had better be < NR_IRQS - 16 */ - if (vec == xics_irq_8259_cascade_real) { - irq = i8259_irq(regs); - xics_end_irq(irq_offset_up(xics_irq_8259_cascade)); - } else if (vec == XICS_IRQ_SPURIOUS) { - irq = -1; - } else { - irq = real_irq_to_virt(vec); - if (irq == NO_IRQ) - irq = real_irq_to_virt_slowpath(vec); - if (irq == NO_IRQ) { - printk(KERN_ERR "Interrupt %u (real) is invalid," - " disabling it.\n", vec); - xics_disable_real_irq(vec); - } else - irq = irq_offset_up(irq); - } - return irq; + if (vec == XICS_IRQ_SPURIOUS) + return NO_IRQ; + irq = irq_radix_revmap(xics_host, vec); + if (likely(irq != NO_IRQ)) + return irq; + + printk(KERN_ERR "Interrupt %u (real) is invalid," + " disabling it.\n", vec); + xics_mask_real_irq(vec); + return NO_IRQ; } -#ifdef CONFIG_SMP +static unsigned int xics_get_irq_direct(struct pt_regs *regs) +{ + unsigned int cpu = smp_processor_id(); -static irqreturn_t xics_ipi_action(int irq, void *dev_id, struct pt_regs *regs) + return xics_remap_irq(direct_xirr_info_get(cpu)); +} + +static unsigned int xics_get_irq_lpar(struct pt_regs *regs) { - int cpu = smp_processor_id(); + unsigned int cpu = smp_processor_id(); + + return xics_remap_irq(lpar_xirr_info_get(cpu)); +} - ops->qirr_info(cpu, 0xff); +#ifdef CONFIG_SMP +static irqreturn_t xics_ipi_dispatch(int cpu, struct pt_regs *regs) +{ WARN_ON(cpu_is_offline(cpu)); while (xics_ipi_message[cpu].value) { @@ -418,18 +377,88 @@ static irqreturn_t xics_ipi_action(int irq, void *dev_id, struct pt_regs *regs) return IRQ_HANDLED; } +static irqreturn_t xics_ipi_action_direct(int irq, void *dev_id, struct pt_regs *regs) +{ + int cpu = smp_processor_id(); + + direct_qirr_info(cpu, 0xff); + + return xics_ipi_dispatch(cpu, regs); +} + +static irqreturn_t xics_ipi_action_lpar(int irq, void *dev_id, struct pt_regs *regs) +{ + int cpu = smp_processor_id(); + + lpar_qirr_info(cpu, 0xff); + + return xics_ipi_dispatch(cpu, regs); +} + void xics_cause_IPI(int cpu) { - ops->qirr_info(cpu, IPI_PRIORITY); + if (firmware_has_feature(FW_FEATURE_LPAR)) + lpar_qirr_info(cpu, IPI_PRIORITY); + else + direct_qirr_info(cpu, IPI_PRIORITY); } + #endif /* CONFIG_SMP */ +static void xics_set_cpu_priority(int cpu, unsigned char cppr) +{ + if (firmware_has_feature(FW_FEATURE_LPAR)) + lpar_cppr_info(cpu, cppr); + else + direct_cppr_info(cpu, cppr); + iosync(); +} + +static void xics_set_affinity(unsigned int virq, cpumask_t cpumask) +{ + unsigned int irq; + int status; + int xics_status[2]; + unsigned long newmask; + cpumask_t tmp = CPU_MASK_NONE; + + irq = (unsigned int)irq_map[virq].hwirq; + if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) + return; + + status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq); + + if (status) { + printk(KERN_ERR "xics_set_affinity: irq=%u ibm,get-xive " + "returns %d\n", irq, status); + return; + } + + /* For the moment only implement delivery to all cpus or one cpu */ + if (cpus_equal(cpumask, CPU_MASK_ALL)) { + newmask = default_distrib_server; + } else { + cpus_and(tmp, cpu_online_map, cpumask); + if (cpus_empty(tmp)) + return; + newmask = get_hard_smp_processor_id(first_cpu(tmp)); + } + + status = rtas_call(ibm_set_xive, 3, 1, NULL, + irq, newmask, xics_status[1]); + + if (status) { + printk(KERN_ERR "xics_set_affinity: irq=%u ibm,set-xive " + "returns %d\n", irq, status); + return; + } +} + void xics_setup_cpu(void) { int cpu = smp_processor_id(); - ops->cppr_info(cpu, 0xff); - iosync(); + xics_set_cpu_priority(cpu, 0xff); /* * Put the calling processor into the GIQ. This is really only @@ -442,72 +471,266 @@ void xics_setup_cpu(void) (1UL << interrupt_server_size) - 1 - default_distrib_server, 1); } -void xics_init_IRQ(void) + +static struct irq_chip xics_pic_direct = { + .typename = " XICS ", + .startup = xics_startup, + .mask = xics_mask_irq, + .unmask = xics_unmask_irq, + .eoi = xics_eoi_direct, + .set_affinity = xics_set_affinity +}; + + +static struct irq_chip xics_pic_lpar = { + .typename = " XICS ", + .startup = xics_startup, + .mask = xics_mask_irq, + .unmask = xics_unmask_irq, + .eoi = xics_eoi_lpar, + .set_affinity = xics_set_affinity +}; + + +static int xics_host_match(struct irq_host *h, struct device_node *node) +{ + /* IBM machines have interrupt parents of various funky types for things + * like vdevices, events, etc... The trick we use here is to match + * everything here except the legacy 8259 which is compatible "chrp,iic" + */ + return !device_is_compatible(node, "chrp,iic"); +} + +static int xics_host_map_direct(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw, unsigned int flags) +{ + unsigned int sense = flags & IRQ_TYPE_SENSE_MASK; + + pr_debug("xics: map_direct virq %d, hwirq 0x%lx, flags: 0x%x\n", + virq, hw, flags); + + if (sense && sense != IRQ_TYPE_LEVEL_LOW) + printk(KERN_WARNING "xics: using unsupported sense 0x%x" + " for irq %d (h: 0x%lx)\n", flags, virq, hw); + + get_irq_desc(virq)->status |= IRQ_LEVEL; + set_irq_chip_and_handler(virq, &xics_pic_direct, handle_fasteoi_irq); + return 0; +} + +static int xics_host_map_lpar(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw, unsigned int flags) +{ + unsigned int sense = flags & IRQ_TYPE_SENSE_MASK; + + pr_debug("xics: map_lpar virq %d, hwirq 0x%lx, flags: 0x%x\n", + virq, hw, flags); + + if (sense && sense != IRQ_TYPE_LEVEL_LOW) + printk(KERN_WARNING "xics: using unsupported sense 0x%x" + " for irq %d (h: 0x%lx)\n", flags, virq, hw); + + get_irq_desc(virq)->status |= IRQ_LEVEL; + set_irq_chip_and_handler(virq, &xics_pic_lpar, handle_fasteoi_irq); + return 0; +} + +static int xics_host_xlate(struct irq_host *h, struct device_node *ct, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, unsigned int *out_flags) + +{ + /* Current xics implementation translates everything + * to level. It is not technically right for MSIs but this + * is irrelevant at this point. We might get smarter in the future + */ + *out_hwirq = intspec[0]; + *out_flags = IRQ_TYPE_LEVEL_LOW; + + return 0; +} + +static struct irq_host_ops xics_host_direct_ops = { + .match = xics_host_match, + .map = xics_host_map_direct, + .xlate = xics_host_xlate, +}; + +static struct irq_host_ops xics_host_lpar_ops = { + .match = xics_host_match, + .map = xics_host_map_lpar, + .xlate = xics_host_xlate, +}; + +static void __init xics_init_host(void) +{ + struct irq_host_ops *ops; + + if (firmware_has_feature(FW_FEATURE_LPAR)) + ops = &xics_host_lpar_ops; + else + ops = &xics_host_direct_ops; + xics_host = irq_alloc_host(IRQ_HOST_MAP_TREE, 0, ops, + XICS_IRQ_SPURIOUS); + BUG_ON(xics_host == NULL); + irq_set_default_host(xics_host); +} + +static void __init xics_map_one_cpu(int hw_id, unsigned long addr, + unsigned long size) { +#ifdef CONFIG_SMP int i; - unsigned long intr_size = 0; - struct device_node *np; - uint *ireg, ilen, indx = 0; - unsigned long intr_base = 0; - struct xics_interrupt_node { - unsigned long addr; - unsigned long size; - } intnodes[NR_CPUS]; - ppc64_boot_msg(0x20, "XICS Init"); + /* This may look gross but it's good enough for now, we don't quite + * have a hard -> linux processor id matching. + */ + for_each_possible_cpu(i) { + if (!cpu_present(i)) + continue; + if (hw_id == get_hard_smp_processor_id(i)) { + xics_per_cpu[i] = ioremap(addr, size); + return; + } + } +#else + if (hw_id != 0) + return; + xics_per_cpu[0] = ioremap(addr, size); +#endif /* CONFIG_SMP */ +} - ibm_get_xive = rtas_token("ibm,get-xive"); - ibm_set_xive = rtas_token("ibm,set-xive"); - ibm_int_on = rtas_token("ibm,int-on"); - ibm_int_off = rtas_token("ibm,int-off"); +static void __init xics_init_one_node(struct device_node *np, + unsigned int *indx) +{ + unsigned int ilen; + u32 *ireg; - np = of_find_node_by_type(NULL, "PowerPC-External-Interrupt-Presentation"); - if (!np) - panic("xics_init_IRQ: can't find interrupt presentation"); + /* This code does the theorically broken assumption that the interrupt + * server numbers are the same as the hard CPU numbers. + * This happens to be the case so far but we are playing with fire... + * should be fixed one of these days. -BenH. + */ + ireg = (u32 *)get_property(np, "ibm,interrupt-server-ranges", NULL); -nextnode: - ireg = (uint *)get_property(np, "ibm,interrupt-server-ranges", NULL); + /* Do that ever happen ? we'll know soon enough... but even good'old + * f80 does have that property .. + */ + WARN_ON(ireg == NULL); if (ireg) { /* * set node starting index for this node */ - indx = *ireg; + *indx = *ireg; } - - ireg = (uint *)get_property(np, "reg", &ilen); + ireg = (u32 *)get_property(np, "reg", &ilen); if (!ireg) panic("xics_init_IRQ: can't find interrupt reg property"); - while (ilen) { - intnodes[indx].addr = (unsigned long)*ireg++ << 32; - ilen -= sizeof(uint); - intnodes[indx].addr |= *ireg++; - ilen -= sizeof(uint); - intnodes[indx].size = (unsigned long)*ireg++ << 32; - ilen -= sizeof(uint); - intnodes[indx].size |= *ireg++; - ilen -= sizeof(uint); - indx++; - if (indx >= NR_CPUS) break; + while (ilen >= (4 * sizeof(u32))) { + unsigned long addr, size; + + /* XXX Use proper OF parsing code here !!! */ + addr = (unsigned long)*ireg++ << 32; + ilen -= sizeof(u32); + addr |= *ireg++; + ilen -= sizeof(u32); + size = (unsigned long)*ireg++ << 32; + ilen -= sizeof(u32); + size |= *ireg++; + ilen -= sizeof(u32); + xics_map_one_cpu(*indx, addr, size); + (*indx)++; + } +} + + +static void __init xics_setup_8259_cascade(void) +{ + struct device_node *np, *old, *found = NULL; + int cascade, naddr; + u32 *addrp; + unsigned long intack = 0; + + for_each_node_by_type(np, "interrupt-controller") + if (device_is_compatible(np, "chrp,iic")) { + found = np; + break; + } + if (found == NULL) { + printk(KERN_DEBUG "xics: no ISA interrupt controller\n"); + return; + } + cascade = irq_of_parse_and_map(found, 0); + if (cascade == NO_IRQ) { + printk(KERN_ERR "xics: failed to map cascade interrupt"); + return; + } + pr_debug("xics: cascade mapped to irq %d\n", cascade); + + for (old = of_node_get(found); old != NULL ; old = np) { + np = of_get_parent(old); + of_node_put(old); + if (np == NULL) + break; + if (strcmp(np->name, "pci") != 0) + continue; + addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", NULL); + if (addrp == NULL) + continue; + naddr = prom_n_addr_cells(np); + intack = addrp[naddr-1]; + if (naddr > 1) + intack |= ((unsigned long)addrp[naddr-2]) << 32; + } + if (intack) + printk(KERN_DEBUG "xics: PCI 8259 intack at 0x%016lx\n", intack); + i8259_init(found, intack); + of_node_put(found); + set_irq_chained_handler(cascade, pseries_8259_cascade); +} + +void __init xics_init_IRQ(void) +{ + int i; + struct device_node *np; + u32 *ireg, ilen, indx = 0; + int found = 0; + + ppc64_boot_msg(0x20, "XICS Init"); + + ibm_get_xive = rtas_token("ibm,get-xive"); + ibm_set_xive = rtas_token("ibm,set-xive"); + ibm_int_on = rtas_token("ibm,int-on"); + ibm_int_off = rtas_token("ibm,int-off"); + + for_each_node_by_type(np, "PowerPC-External-Interrupt-Presentation") { + found = 1; + if (firmware_has_feature(FW_FEATURE_LPAR)) + break; + xics_init_one_node(np, &indx); } + if (found == 0) + return; - np = of_find_node_by_type(np, "PowerPC-External-Interrupt-Presentation"); - if ((indx < NR_CPUS) && np) goto nextnode; + xics_init_host(); /* Find the server numbers for the boot cpu. */ for (np = of_find_node_by_type(NULL, "cpu"); np; np = of_find_node_by_type(np, "cpu")) { - ireg = (uint *)get_property(np, "reg", &ilen); + ireg = (u32 *)get_property(np, "reg", &ilen); if (ireg && ireg[0] == get_hard_smp_processor_id(boot_cpuid)) { - ireg = (uint *)get_property(np, "ibm,ppc-interrupt-gserver#s", - &ilen); + ireg = (u32 *)get_property(np, + "ibm,ppc-interrupt-gserver#s", + &ilen); i = ilen / sizeof(int); if (ireg && i > 0) { default_server = ireg[0]; - default_distrib_server = ireg[i-1]; /* take last element */ + /* take last element */ + default_distrib_server = ireg[i-1]; } - ireg = (uint *)get_property(np, + ireg = (u32 *)get_property(np, "ibm,interrupt-server#-size", NULL); if (ireg) interrupt_server_size = *ireg; @@ -516,135 +739,48 @@ nextnode: } of_node_put(np); - intr_base = intnodes[0].addr; - intr_size = intnodes[0].size; - - np = of_find_node_by_type(NULL, "interrupt-controller"); - if (!np) { - printk(KERN_DEBUG "xics: no ISA interrupt controller\n"); - xics_irq_8259_cascade_real = -1; - xics_irq_8259_cascade = -1; - } else { - ireg = (uint *) get_property(np, "interrupts", NULL); - if (!ireg) - panic("xics_init_IRQ: can't find ISA interrupts property"); - - xics_irq_8259_cascade_real = *ireg; - xics_irq_8259_cascade - = virt_irq_create_mapping(xics_irq_8259_cascade_real); - i8259_init(0, 0); - of_node_put(np); - } - if (firmware_has_feature(FW_FEATURE_LPAR)) - ops = &pSeriesLP_ops; - else { -#ifdef CONFIG_SMP - for_each_possible_cpu(i) { - int hard_id; - - /* FIXME: Do this dynamically! --RR */ - if (!cpu_present(i)) - continue; - - hard_id = get_hard_smp_processor_id(i); - xics_per_cpu[i] = ioremap(intnodes[hard_id].addr, - intnodes[hard_id].size); - } -#else - xics_per_cpu[0] = ioremap(intr_base, intr_size); -#endif /* CONFIG_SMP */ - } - - for (i = irq_offset_value(); i < NR_IRQS; ++i) - get_irq_desc(i)->chip = &xics_pic; + ppc_md.get_irq = xics_get_irq_lpar; + else + ppc_md.get_irq = xics_get_irq_direct; xics_setup_cpu(); + xics_setup_8259_cascade(); + ppc64_boot_msg(0x21, "XICS Done"); } -/* - * We cant do this in init_IRQ because we need the memory subsystem up for - * request_irq() - */ -static int __init xics_setup_i8259(void) -{ - if (ppc64_interrupt_controller == IC_PPC_XIC && - xics_irq_8259_cascade != -1) { - if (request_irq(irq_offset_up(xics_irq_8259_cascade), - no_action, 0, "8259 cascade", NULL)) - printk(KERN_ERR "xics_setup_i8259: couldn't get 8259 " - "cascade\n"); - } - return 0; -} -arch_initcall(xics_setup_i8259); #ifdef CONFIG_SMP void xics_request_IPIs(void) { - virt_irq_to_real_map[XICS_IPI] = XICS_IPI; + unsigned int ipi; + + ipi = irq_create_mapping(xics_host, XICS_IPI, 0); + BUG_ON(ipi == NO_IRQ); /* * IPIs are marked IRQF_DISABLED as they must run with irqs * disabled */ - request_irq(irq_offset_up(XICS_IPI), xics_ipi_action, - IRQF_DISABLED, "IPI", NULL); - get_irq_desc(irq_offset_up(XICS_IPI))->status |= IRQ_PER_CPU; -} -#endif - -static void xics_set_affinity(unsigned int virq, cpumask_t cpumask) -{ - unsigned int irq; - int status; - int xics_status[2]; - unsigned long newmask; - cpumask_t tmp = CPU_MASK_NONE; - - irq = virt_irq_to_real(irq_offset_down(virq)); - if (irq == XICS_IPI || irq == NO_IRQ) - return; - - status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq); - - if (status) { - printk(KERN_ERR "xics_set_affinity: irq=%u ibm,get-xive " - "returns %d\n", irq, status); - return; - } - - /* For the moment only implement delivery to all cpus or one cpu */ - if (cpus_equal(cpumask, CPU_MASK_ALL)) { - newmask = default_distrib_server; - } else { - cpus_and(tmp, cpu_online_map, cpumask); - if (cpus_empty(tmp)) - return; - newmask = get_hard_smp_processor_id(first_cpu(tmp)); - } - - status = rtas_call(ibm_set_xive, 3, 1, NULL, - irq, newmask, xics_status[1]); - - if (status) { - printk(KERN_ERR "xics_set_affinity: irq=%u ibm,set-xive " - "returns %d\n", irq, status); - return; - } + set_irq_handler(ipi, handle_percpu_irq); + if (firmware_has_feature(FW_FEATURE_LPAR)) + request_irq(ipi, xics_ipi_action_lpar, IRQF_DISABLED, + "IPI", NULL); + else + request_irq(ipi, xics_ipi_action_direct, IRQF_DISABLED, + "IPI", NULL); } +#endif /* CONFIG_SMP */ void xics_teardown_cpu(int secondary) { int cpu = smp_processor_id(); + unsigned int ipi; + struct irq_desc *desc; - ops->cppr_info(cpu, 0x00); - iosync(); - - /* Clear IPI */ - ops->qirr_info(cpu, 0xff); + xics_set_cpu_priority(cpu, 0); /* * we need to EOI the IPI if we got here from kexec down IPI @@ -653,7 +789,13 @@ void xics_teardown_cpu(int secondary) * should we be flagging idle loop instead? * or creating some task to be scheduled? */ - ops->xirr_info_set(cpu, XICS_IPI); + + ipi = irq_find_mapping(xics_host, XICS_IPI); + if (ipi == XICS_IRQ_SPURIOUS) + return; + desc = get_irq_desc(ipi); + if (desc->chip && desc->chip->eoi) + desc->chip->eoi(XICS_IPI); /* * Some machines need to have at least one cpu in the GIQ, @@ -661,8 +803,8 @@ void xics_teardown_cpu(int secondary) */ if (secondary) rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE, - (1UL << interrupt_server_size) - 1 - - default_distrib_server, 0); + (1UL << interrupt_server_size) - 1 - + default_distrib_server, 0); } #ifdef CONFIG_HOTPLUG_CPU @@ -674,8 +816,7 @@ void xics_migrate_irqs_away(void) unsigned int irq, virq, cpu = smp_processor_id(); /* Reject any interrupt that was queued to us... */ - ops->cppr_info(cpu, 0); - iosync(); + xics_set_cpu_priority(cpu, 0); /* remove ourselves from the global interrupt queue */ status = rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE, @@ -683,24 +824,23 @@ void xics_migrate_irqs_away(void) WARN_ON(status < 0); /* Allow IPIs again... */ - ops->cppr_info(cpu, DEFAULT_PRIORITY); - iosync(); + xics_set_cpu_priority(cpu, DEFAULT_PRIORITY); for_each_irq(virq) { - irq_desc_t *desc; + struct irq_desc *desc; int xics_status[2]; unsigned long flags; /* We cant set affinity on ISA interrupts */ - if (virq < irq_offset_value()) + if (virq < NUM_ISA_INTERRUPTS) continue; - - desc = get_irq_desc(virq); - irq = virt_irq_to_real(irq_offset_down(virq)); - + if (irq_map[virq].host != xics_host) + continue; + irq = (unsigned int)irq_map[virq].hwirq; /* We need to get IPIs still. */ - if (irq == XICS_IPI || irq == NO_IRQ) + if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) continue; + desc = get_irq_desc(virq); /* We only need to migrate enabled IRQS */ if (desc == NULL || desc->chip == NULL diff --git a/arch/powerpc/platforms/pseries/xics.h b/arch/powerpc/platforms/pseries/xics.h index e14c70868f1d..6ee1055b0ffb 100644 --- a/arch/powerpc/platforms/pseries/xics.h +++ b/arch/powerpc/platforms/pseries/xics.h @@ -14,13 +14,12 @@ #include <linux/cache.h> -void xics_init_IRQ(void); -int xics_get_irq(struct pt_regs *); -void xics_setup_cpu(void); -void xics_teardown_cpu(int secondary); -void xics_cause_IPI(int cpu); -void xics_request_IPIs(void); -void xics_migrate_irqs_away(void); +extern void xics_init_IRQ(void); +extern void xics_setup_cpu(void); +extern void xics_teardown_cpu(int secondary); +extern void xics_cause_IPI(int cpu); +extern void xics_request_IPIs(void); +extern void xics_migrate_irqs_away(void); /* first argument is ignored for now*/ void pSeriesLP_cppr_info(int n_cpu, u8 value); @@ -31,4 +30,8 @@ struct xics_ipi_struct { extern struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned; +struct irq_desc; +extern void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs); + #endif /* _POWERPC_KERNEL_XICS_H */ diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index 054bd8b41ef5..cebfae242602 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -4,7 +4,6 @@ endif obj-$(CONFIG_MPIC) += mpic.o obj-$(CONFIG_PPC_INDIRECT_PCI) += indirect_pci.o -obj-$(CONFIG_PPC_I8259) += i8259.o obj-$(CONFIG_PPC_MPC106) += grackle.o obj-$(CONFIG_BOOKE) += dcr.o obj-$(CONFIG_40x) += dcr.o @@ -14,3 +13,7 @@ obj-$(CONFIG_PPC_83xx) += ipic.o obj-$(CONFIG_FSL_SOC) += fsl_soc.o obj-$(CONFIG_PPC_TODC) += todc.o obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o + +ifeq ($(CONFIG_PPC_MERGE),y) +obj-$(CONFIG_PPC_I8259) += i8259.o + endif diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c index 1a3ef1ab9d6e..72c73a6105cd 100644 --- a/arch/powerpc/sysdev/i8259.c +++ b/arch/powerpc/sysdev/i8259.c @@ -6,11 +6,16 @@ * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ +#undef DEBUG + #include <linux/init.h> #include <linux/ioport.h> #include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/delay.h> #include <asm/io.h> #include <asm/i8259.h> +#include <asm/prom.h> static volatile void __iomem *pci_intack; /* RO, gives us the irq vector */ @@ -20,7 +25,8 @@ static unsigned char cached_8259[2] = { 0xff, 0xff }; static DEFINE_SPINLOCK(i8259_lock); -static int i8259_pic_irq_offset; +static struct device_node *i8259_node; +static struct irq_host *i8259_host; /* * Acknowledge the IRQ using either the PCI host bridge's interrupt @@ -28,16 +34,18 @@ static int i8259_pic_irq_offset; * which is called. It should be noted that polling is broken on some * IBM and Motorola PReP boxes so we must use the int-ack feature on them. */ -int i8259_irq(struct pt_regs *regs) +unsigned int i8259_irq(struct pt_regs *regs) { int irq; - - spin_lock(&i8259_lock); + int lock = 0; /* Either int-ack or poll for the IRQ */ if (pci_intack) irq = readb(pci_intack); else { + spin_lock(&i8259_lock); + lock = 1; + /* Perform an interrupt acknowledge cycle on controller 1. */ outb(0x0C, 0x20); /* prepare for poll */ irq = inb(0x20) & 7; @@ -62,16 +70,13 @@ int i8259_irq(struct pt_regs *regs) if (!pci_intack) outb(0x0B, 0x20); /* ISR register */ if(~inb(0x20) & 0x80) - irq = -1; - } + irq = NO_IRQ; + } else if (irq == 0xff) + irq = NO_IRQ; - spin_unlock(&i8259_lock); - return irq + i8259_pic_irq_offset; -} - -int i8259_irq_cascade(struct pt_regs *regs, void *unused) -{ - return i8259_irq(regs); + if (lock) + spin_unlock(&i8259_lock); + return irq; } static void i8259_mask_and_ack_irq(unsigned int irq_nr) @@ -79,7 +84,6 @@ static void i8259_mask_and_ack_irq(unsigned int irq_nr) unsigned long flags; spin_lock_irqsave(&i8259_lock, flags); - irq_nr -= i8259_pic_irq_offset; if (irq_nr > 7) { cached_A1 |= 1 << (irq_nr-8); inb(0xA1); /* DUMMY */ @@ -105,8 +109,9 @@ static void i8259_mask_irq(unsigned int irq_nr) { unsigned long flags; + pr_debug("i8259_mask_irq(%d)\n", irq_nr); + spin_lock_irqsave(&i8259_lock, flags); - irq_nr -= i8259_pic_irq_offset; if (irq_nr < 8) cached_21 |= 1 << irq_nr; else @@ -119,8 +124,9 @@ static void i8259_unmask_irq(unsigned int irq_nr) { unsigned long flags; + pr_debug("i8259_unmask_irq(%d)\n", irq_nr); + spin_lock_irqsave(&i8259_lock, flags); - irq_nr -= i8259_pic_irq_offset; if (irq_nr < 8) cached_21 &= ~(1 << irq_nr); else @@ -129,19 +135,11 @@ static void i8259_unmask_irq(unsigned int irq_nr) spin_unlock_irqrestore(&i8259_lock, flags); } -static void i8259_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)) - && irq_desc[irq].action) - i8259_unmask_irq(irq); -} - -struct hw_interrupt_type i8259_pic = { - .typename = " i8259 ", - .enable = i8259_unmask_irq, - .disable = i8259_mask_irq, - .ack = i8259_mask_and_ack_irq, - .end = i8259_end_irq, +static struct irq_chip i8259_pic = { + .typename = " i8259 ", + .mask = i8259_mask_irq, + .unmask = i8259_unmask_irq, + .mask_ack = i8259_mask_and_ack_irq, }; static struct resource pic1_iores = { @@ -165,25 +163,84 @@ static struct resource pic_edgectrl_iores = { .flags = IORESOURCE_BUSY, }; -static struct irqaction i8259_irqaction = { - .handler = no_action, - .flags = IRQF_DISABLED, - .mask = CPU_MASK_NONE, - .name = "82c59 secondary cascade", +static int i8259_host_match(struct irq_host *h, struct device_node *node) +{ + return i8259_node == NULL || i8259_node == node; +} + +static int i8259_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw, unsigned int flags) +{ + pr_debug("i8259_host_map(%d, 0x%lx)\n", virq, hw); + + /* We block the internal cascade */ + if (hw == 2) + get_irq_desc(virq)->status |= IRQ_NOREQUEST; + + /* We use the level stuff only for now, we might want to + * be more cautious here but that works for now + */ + get_irq_desc(virq)->status |= IRQ_LEVEL; + set_irq_chip_and_handler(virq, &i8259_pic, handle_level_irq); + return 0; +} + +static void i8259_host_unmap(struct irq_host *h, unsigned int virq) +{ + /* Make sure irq is masked in hardware */ + i8259_mask_irq(virq); + + /* remove chip and handler */ + set_irq_chip_and_handler(virq, NULL, NULL); + + /* Make sure it's completed */ + synchronize_irq(virq); +} + +static int i8259_host_xlate(struct irq_host *h, struct device_node *ct, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, unsigned int *out_flags) +{ + static unsigned char map_isa_senses[4] = { + IRQ_TYPE_LEVEL_LOW, + IRQ_TYPE_LEVEL_HIGH, + IRQ_TYPE_EDGE_FALLING, + IRQ_TYPE_EDGE_RISING, + }; + + *out_hwirq = intspec[0]; + if (intsize > 1 && intspec[1] < 4) + *out_flags = map_isa_senses[intspec[1]]; + else + *out_flags = IRQ_TYPE_NONE; + + return 0; +} + +static struct irq_host_ops i8259_host_ops = { + .match = i8259_host_match, + .map = i8259_host_map, + .unmap = i8259_host_unmap, + .xlate = i8259_host_xlate, }; -/* - * i8259_init() - * intack_addr - PCI interrupt acknowledge (real) address which will return - * the active irq from the 8259 +/**** + * i8259_init - Initialize the legacy controller + * @node: device node of the legacy PIC (can be NULL, but then, it will match + * all interrupts, so beware) + * @intack_addr: PCI interrupt acknowledge (real) address which will return + * the active irq from the 8259 */ -void __init i8259_init(unsigned long intack_addr, int offset) +void i8259_init(struct device_node *node, unsigned long intack_addr) { unsigned long flags; - int i; + /* initialize the controller */ spin_lock_irqsave(&i8259_lock, flags); - i8259_pic_irq_offset = offset; + + /* Mask all first */ + outb(0xff, 0xA1); + outb(0xff, 0x21); /* init master interrupt controller */ outb(0x11, 0x20); /* Start init sequence */ @@ -197,21 +254,36 @@ void __init i8259_init(unsigned long intack_addr, int offset) outb(0x02, 0xA1); /* edge triggered, Cascade (slave) on IRQ2 */ outb(0x01, 0xA1); /* Select 8086 mode */ + /* That thing is slow */ + udelay(100); + /* always read ISR */ outb(0x0B, 0x20); outb(0x0B, 0xA0); - /* Mask all interrupts */ + /* Unmask the internal cascade */ + cached_21 &= ~(1 << 2); + + /* Set interrupt masks */ outb(cached_A1, 0xA1); outb(cached_21, 0x21); spin_unlock_irqrestore(&i8259_lock, flags); - for (i = 0; i < NUM_ISA_INTERRUPTS; ++i) - irq_desc[offset + i].chip = &i8259_pic; + /* create a legacy host */ + if (node) + i8259_node = of_node_get(node); + i8259_host = irq_alloc_host(IRQ_HOST_MAP_LEGACY, 0, &i8259_host_ops, 0); + if (i8259_host == NULL) { + printk(KERN_ERR "i8259: failed to allocate irq host !\n"); + return; + } /* reserve our resources */ - setup_irq(offset + 2, &i8259_irqaction); + /* XXX should we continue doing that ? it seems to cause problems + * with further requesting of PCI IO resources for that range... + * need to look into it. + */ request_resource(&ioport_resource, &pic1_iores); request_resource(&ioport_resource, &pic2_iores); request_resource(&ioport_resource, &pic_edgectrl_iores); @@ -219,4 +291,5 @@ void __init i8259_init(unsigned long intack_addr, int offset) if (intack_addr != 0) pci_intack = ioremap(intack_addr, 1); + printk(KERN_INFO "i8259 legacy interrupt controller initialized\n"); } diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 7e469358895f..7d31d7cc392d 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -100,8 +100,8 @@ static inline u32 _mpic_cpu_read(struct mpic *mpic, unsigned int reg) if (mpic->flags & MPIC_PRIMARY) cpu = hard_smp_processor_id(); - - return _mpic_read(mpic->flags & MPIC_BIG_ENDIAN, mpic->cpuregs[cpu], reg); + return _mpic_read(mpic->flags & MPIC_BIG_ENDIAN, + mpic->cpuregs[cpu], reg); } static inline void _mpic_cpu_write(struct mpic *mpic, unsigned int reg, u32 value) @@ -340,27 +340,19 @@ static void __init mpic_scan_ht_pics(struct mpic *mpic) #endif /* CONFIG_MPIC_BROKEN_U3 */ +#define mpic_irq_to_hw(virq) ((unsigned int)irq_map[virq].hwirq) + /* Find an mpic associated with a given linux interrupt */ static struct mpic *mpic_find(unsigned int irq, unsigned int *is_ipi) { - struct mpic *mpic = mpics; - - while(mpic) { - /* search IPIs first since they may override the main interrupts */ - if (irq >= mpic->ipi_offset && irq < (mpic->ipi_offset + 4)) { - if (is_ipi) - *is_ipi = 1; - return mpic; - } - if (irq >= mpic->irq_offset && - irq < (mpic->irq_offset + mpic->irq_count)) { - if (is_ipi) - *is_ipi = 0; - return mpic; - } - mpic = mpic -> next; - } - return NULL; + unsigned int src = mpic_irq_to_hw(irq); + + if (irq < NUM_ISA_INTERRUPTS) + return NULL; + if (is_ipi) + *is_ipi = (src >= MPIC_VEC_IPI_0 && src <= MPIC_VEC_IPI_3); + + return irq_desc[irq].chip_data; } /* Convert a cpu mask from logical to physical cpu numbers. */ @@ -378,14 +370,14 @@ static inline u32 mpic_physmask(u32 cpumask) /* Get the mpic structure from the IPI number */ static inline struct mpic * mpic_from_ipi(unsigned int ipi) { - return container_of(irq_desc[ipi].chip, struct mpic, hc_ipi); + return irq_desc[ipi].chip_data; } #endif /* Get the mpic structure from the irq number */ static inline struct mpic * mpic_from_irq(unsigned int irq) { - return container_of(irq_desc[irq].chip, struct mpic, hc_irq); + return irq_desc[irq].chip_data; } /* Send an EOI */ @@ -398,9 +390,7 @@ static inline void mpic_eoi(struct mpic *mpic) #ifdef CONFIG_SMP static irqreturn_t mpic_ipi_action(int irq, void *dev_id, struct pt_regs *regs) { - struct mpic *mpic = dev_id; - - smp_message_recv(irq - mpic->ipi_offset, regs); + smp_message_recv(mpic_irq_to_hw(irq) - MPIC_VEC_IPI_0, regs); return IRQ_HANDLED; } #endif /* CONFIG_SMP */ @@ -410,11 +400,11 @@ static irqreturn_t mpic_ipi_action(int irq, void *dev_id, struct pt_regs *regs) */ -static void mpic_enable_irq(unsigned int irq) +static void mpic_unmask_irq(unsigned int irq) { unsigned int loops = 100000; struct mpic *mpic = mpic_from_irq(irq); - unsigned int src = irq - mpic->irq_offset; + unsigned int src = mpic_irq_to_hw(irq); DBG("%p: %s: enable_irq: %d (src %d)\n", mpic, mpic->name, irq, src); @@ -429,39 +419,13 @@ static void mpic_enable_irq(unsigned int irq) break; } } while(mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) & MPIC_VECPRI_MASK); - -#ifdef CONFIG_MPIC_BROKEN_U3 - if (mpic->flags & MPIC_BROKEN_U3) { - unsigned int src = irq - mpic->irq_offset; - if (mpic_is_ht_interrupt(mpic, src) && - (irq_desc[irq].status & IRQ_LEVEL)) - mpic_ht_end_irq(mpic, src); - } -#endif /* CONFIG_MPIC_BROKEN_U3 */ -} - -static unsigned int mpic_startup_irq(unsigned int irq) -{ -#ifdef CONFIG_MPIC_BROKEN_U3 - struct mpic *mpic = mpic_from_irq(irq); - unsigned int src = irq - mpic->irq_offset; -#endif /* CONFIG_MPIC_BROKEN_U3 */ - - mpic_enable_irq(irq); - -#ifdef CONFIG_MPIC_BROKEN_U3 - if (mpic_is_ht_interrupt(mpic, src)) - mpic_startup_ht_interrupt(mpic, src, irq_desc[irq].status); -#endif /* CONFIG_MPIC_BROKEN_U3 */ - - return 0; } -static void mpic_disable_irq(unsigned int irq) +static void mpic_mask_irq(unsigned int irq) { unsigned int loops = 100000; struct mpic *mpic = mpic_from_irq(irq); - unsigned int src = irq - mpic->irq_offset; + unsigned int src = mpic_irq_to_hw(irq); DBG("%s: disable_irq: %d (src %d)\n", mpic->name, irq, src); @@ -478,23 +442,58 @@ static void mpic_disable_irq(unsigned int irq) } while(!(mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) & MPIC_VECPRI_MASK)); } -static void mpic_shutdown_irq(unsigned int irq) +static void mpic_end_irq(unsigned int irq) { + struct mpic *mpic = mpic_from_irq(irq); + +#ifdef DEBUG_IRQ + DBG("%s: end_irq: %d\n", mpic->name, irq); +#endif + /* We always EOI on end_irq() even for edge interrupts since that + * should only lower the priority, the MPIC should have properly + * latched another edge interrupt coming in anyway + */ + + mpic_eoi(mpic); +} + #ifdef CONFIG_MPIC_BROKEN_U3 + +static void mpic_unmask_ht_irq(unsigned int irq) +{ struct mpic *mpic = mpic_from_irq(irq); - unsigned int src = irq - mpic->irq_offset; + unsigned int src = mpic_irq_to_hw(irq); - if (mpic_is_ht_interrupt(mpic, src)) - mpic_shutdown_ht_interrupt(mpic, src, irq_desc[irq].status); + mpic_unmask_irq(irq); -#endif /* CONFIG_MPIC_BROKEN_U3 */ + if (irq_desc[irq].status & IRQ_LEVEL) + mpic_ht_end_irq(mpic, src); +} + +static unsigned int mpic_startup_ht_irq(unsigned int irq) +{ + struct mpic *mpic = mpic_from_irq(irq); + unsigned int src = mpic_irq_to_hw(irq); + + mpic_unmask_irq(irq); + mpic_startup_ht_interrupt(mpic, src, irq_desc[irq].status); - mpic_disable_irq(irq); + return 0; } -static void mpic_end_irq(unsigned int irq) +static void mpic_shutdown_ht_irq(unsigned int irq) { struct mpic *mpic = mpic_from_irq(irq); + unsigned int src = mpic_irq_to_hw(irq); + + mpic_shutdown_ht_interrupt(mpic, src, irq_desc[irq].status); + mpic_mask_irq(irq); +} + +static void mpic_end_ht_irq(unsigned int irq) +{ + struct mpic *mpic = mpic_from_irq(irq); + unsigned int src = mpic_irq_to_hw(irq); #ifdef DEBUG_IRQ DBG("%s: end_irq: %d\n", mpic->name, irq); @@ -504,30 +503,25 @@ static void mpic_end_irq(unsigned int irq) * latched another edge interrupt coming in anyway */ -#ifdef CONFIG_MPIC_BROKEN_U3 - if (mpic->flags & MPIC_BROKEN_U3) { - unsigned int src = irq - mpic->irq_offset; - if (mpic_is_ht_interrupt(mpic, src) && - (irq_desc[irq].status & IRQ_LEVEL)) - mpic_ht_end_irq(mpic, src); - } -#endif /* CONFIG_MPIC_BROKEN_U3 */ - + if (irq_desc[irq].status & IRQ_LEVEL) + mpic_ht_end_irq(mpic, src); mpic_eoi(mpic); } +#endif /* CONFIG_MPIC_BROKEN_U3 */ + #ifdef CONFIG_SMP -static void mpic_enable_ipi(unsigned int irq) +static void mpic_unmask_ipi(unsigned int irq) { struct mpic *mpic = mpic_from_ipi(irq); - unsigned int src = irq - mpic->ipi_offset; + unsigned int src = mpic_irq_to_hw(irq) - MPIC_VEC_IPI_0; DBG("%s: enable_ipi: %d (ipi %d)\n", mpic->name, irq, src); mpic_ipi_write(src, mpic_ipi_read(src) & ~MPIC_VECPRI_MASK); } -static void mpic_disable_ipi(unsigned int irq) +static void mpic_mask_ipi(unsigned int irq) { /* NEVER disable an IPI... that's just plain wrong! */ } @@ -551,29 +545,176 @@ static void mpic_end_ipi(unsigned int irq) static void mpic_set_affinity(unsigned int irq, cpumask_t cpumask) { struct mpic *mpic = mpic_from_irq(irq); + unsigned int src = mpic_irq_to_hw(irq); cpumask_t tmp; cpus_and(tmp, cpumask, cpu_online_map); - mpic_irq_write(irq - mpic->irq_offset, MPIC_IRQ_DESTINATION, + mpic_irq_write(src, MPIC_IRQ_DESTINATION, mpic_physmask(cpus_addr(tmp)[0])); } +static unsigned int mpic_flags_to_vecpri(unsigned int flags, int *level) +{ + unsigned int vecpri; + + /* Now convert sense value */ + switch(flags & IRQ_TYPE_SENSE_MASK) { + case IRQ_TYPE_EDGE_RISING: + vecpri = MPIC_VECPRI_SENSE_EDGE | + MPIC_VECPRI_POLARITY_POSITIVE; + *level = 0; + break; + case IRQ_TYPE_EDGE_FALLING: + vecpri = MPIC_VECPRI_SENSE_EDGE | + MPIC_VECPRI_POLARITY_NEGATIVE; + *level = 0; + break; + case IRQ_TYPE_LEVEL_HIGH: + vecpri = MPIC_VECPRI_SENSE_LEVEL | + MPIC_VECPRI_POLARITY_POSITIVE; + *level = 1; + break; + case IRQ_TYPE_LEVEL_LOW: + default: + vecpri = MPIC_VECPRI_SENSE_LEVEL | + MPIC_VECPRI_POLARITY_NEGATIVE; + *level = 1; + } + return vecpri; +} + +static struct irq_chip mpic_irq_chip = { + .mask = mpic_mask_irq, + .unmask = mpic_unmask_irq, + .eoi = mpic_end_irq, +}; + +#ifdef CONFIG_SMP +static struct irq_chip mpic_ipi_chip = { + .mask = mpic_mask_ipi, + .unmask = mpic_unmask_ipi, + .eoi = mpic_end_ipi, +}; +#endif /* CONFIG_SMP */ + +#ifdef CONFIG_MPIC_BROKEN_U3 +static struct irq_chip mpic_irq_ht_chip = { + .startup = mpic_startup_ht_irq, + .shutdown = mpic_shutdown_ht_irq, + .mask = mpic_mask_irq, + .unmask = mpic_unmask_ht_irq, + .eoi = mpic_end_ht_irq, +}; +#endif /* CONFIG_MPIC_BROKEN_U3 */ + + +static int mpic_host_match(struct irq_host *h, struct device_node *node) +{ + struct mpic *mpic = h->host_data; + + /* Exact match, unless mpic node is NULL */ + return mpic->of_node == NULL || mpic->of_node == node; +} + +static int mpic_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw, unsigned int flags) +{ + struct irq_desc *desc = get_irq_desc(virq); + struct irq_chip *chip; + struct mpic *mpic = h->host_data; + unsigned int vecpri = MPIC_VECPRI_SENSE_LEVEL | + MPIC_VECPRI_POLARITY_NEGATIVE; + int level; + + pr_debug("mpic: map virq %d, hwirq 0x%lx, flags: 0x%x\n", + virq, hw, flags); + + if (hw == MPIC_VEC_SPURRIOUS) + return -EINVAL; +#ifdef CONFIG_SMP + else if (hw >= MPIC_VEC_IPI_0) { + WARN_ON(!(mpic->flags & MPIC_PRIMARY)); + + pr_debug("mpic: mapping as IPI\n"); + set_irq_chip_data(virq, mpic); + set_irq_chip_and_handler(virq, &mpic->hc_ipi, + handle_percpu_irq); + return 0; + } +#endif /* CONFIG_SMP */ + + if (hw >= mpic->irq_count) + return -EINVAL; + + /* If no sense provided, check default sense array */ + if (((flags & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_NONE) && + mpic->senses && hw < mpic->senses_count) + flags |= mpic->senses[hw]; + + vecpri = mpic_flags_to_vecpri(flags, &level); + if (level) + desc->status |= IRQ_LEVEL; + chip = &mpic->hc_irq; + +#ifdef CONFIG_MPIC_BROKEN_U3 + /* Check for HT interrupts, override vecpri */ + if (mpic_is_ht_interrupt(mpic, hw)) { + vecpri &= ~(MPIC_VECPRI_SENSE_MASK | + MPIC_VECPRI_POLARITY_MASK); + vecpri |= MPIC_VECPRI_POLARITY_POSITIVE; + chip = &mpic->hc_ht_irq; + } +#endif + + /* Reconfigure irq */ + vecpri |= MPIC_VECPRI_MASK | hw | (8 << MPIC_VECPRI_PRIORITY_SHIFT); + mpic_irq_write(hw, MPIC_IRQ_VECTOR_PRI, vecpri); + + pr_debug("mpic: mapping as IRQ\n"); + + set_irq_chip_data(virq, mpic); + set_irq_chip_and_handler(virq, chip, handle_fasteoi_irq); + return 0; +} + +static int mpic_host_xlate(struct irq_host *h, struct device_node *ct, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, unsigned int *out_flags) + +{ + static unsigned char map_mpic_senses[4] = { + IRQ_TYPE_EDGE_RISING, + IRQ_TYPE_LEVEL_LOW, + IRQ_TYPE_LEVEL_HIGH, + IRQ_TYPE_EDGE_FALLING, + }; + + *out_hwirq = intspec[0]; + if (intsize > 1 && intspec[1] < 4) + *out_flags = map_mpic_senses[intspec[1]]; + else + *out_flags = IRQ_TYPE_NONE; + + return 0; +} + +static struct irq_host_ops mpic_host_ops = { + .match = mpic_host_match, + .map = mpic_host_map, + .xlate = mpic_host_xlate, +}; /* * Exported functions */ - -struct mpic * __init mpic_alloc(unsigned long phys_addr, +struct mpic * __init mpic_alloc(struct device_node *node, + unsigned long phys_addr, unsigned int flags, unsigned int isu_size, - unsigned int irq_offset, unsigned int irq_count, - unsigned int ipi_offset, - unsigned char *senses, - unsigned int senses_count, const char *name) { struct mpic *mpic; @@ -585,33 +726,38 @@ struct mpic * __init mpic_alloc(unsigned long phys_addr, if (mpic == NULL) return NULL; - memset(mpic, 0, sizeof(struct mpic)); mpic->name = name; + mpic->of_node = node ? of_node_get(node) : NULL; + mpic->irqhost = irq_alloc_host(IRQ_HOST_MAP_LINEAR, 256, + &mpic_host_ops, + MPIC_VEC_SPURRIOUS); + if (mpic->irqhost == NULL) { + of_node_put(node); + return NULL; + } + + mpic->irqhost->host_data = mpic; + mpic->hc_irq = mpic_irq_chip; mpic->hc_irq.typename = name; - mpic->hc_irq.startup = mpic_startup_irq; - mpic->hc_irq.shutdown = mpic_shutdown_irq; - mpic->hc_irq.enable = mpic_enable_irq; - mpic->hc_irq.disable = mpic_disable_irq; - mpic->hc_irq.end = mpic_end_irq; if (flags & MPIC_PRIMARY) mpic->hc_irq.set_affinity = mpic_set_affinity; +#ifdef CONFIG_MPIC_BROKEN_U3 + mpic->hc_ht_irq = mpic_irq_ht_chip; + mpic->hc_ht_irq.typename = name; + if (flags & MPIC_PRIMARY) + mpic->hc_ht_irq.set_affinity = mpic_set_affinity; +#endif /* CONFIG_MPIC_BROKEN_U3 */ #ifdef CONFIG_SMP + mpic->hc_ipi = mpic_ipi_chip; mpic->hc_ipi.typename = name; - mpic->hc_ipi.enable = mpic_enable_ipi; - mpic->hc_ipi.disable = mpic_disable_ipi; - mpic->hc_ipi.end = mpic_end_ipi; #endif /* CONFIG_SMP */ mpic->flags = flags; mpic->isu_size = isu_size; - mpic->irq_offset = irq_offset; mpic->irq_count = irq_count; - mpic->ipi_offset = ipi_offset; mpic->num_sources = 0; /* so far */ - mpic->senses = senses; - mpic->senses_count = senses_count; /* Map the global registers */ mpic->gregs = ioremap(phys_addr + MPIC_GREG_BASE, 0x1000); @@ -679,8 +825,10 @@ struct mpic * __init mpic_alloc(unsigned long phys_addr, mpic->next = mpics; mpics = mpic; - if (flags & MPIC_PRIMARY) + if (flags & MPIC_PRIMARY) { mpic_primary = mpic; + irq_set_default_host(mpic->irqhost); + } return mpic; } @@ -697,26 +845,10 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, mpic->num_sources = isu_first + mpic->isu_size; } -void __init mpic_setup_cascade(unsigned int irq, mpic_cascade_t handler, - void *data) +void __init mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count) { - struct mpic *mpic = mpic_find(irq, NULL); - unsigned long flags; - - /* Synchronization here is a bit dodgy, so don't try to replace cascade - * interrupts on the fly too often ... but normally it's set up at boot. - */ - spin_lock_irqsave(&mpic_lock, flags); - if (mpic->cascade) - mpic_disable_irq(mpic->cascade_vec + mpic->irq_offset); - mpic->cascade = NULL; - wmb(); - mpic->cascade_vec = irq - mpic->irq_offset; - mpic->cascade_data = data; - wmb(); - mpic->cascade = handler; - mpic_enable_irq(irq); - spin_unlock_irqrestore(&mpic_lock, flags); + mpic->senses = senses; + mpic->senses_count = count; } void __init mpic_init(struct mpic *mpic) @@ -724,6 +856,11 @@ void __init mpic_init(struct mpic *mpic) int i; BUG_ON(mpic->num_sources == 0); + WARN_ON(mpic->num_sources > MPIC_VEC_IPI_0); + + /* Sanitize source count */ + if (mpic->num_sources > MPIC_VEC_IPI_0) + mpic->num_sources = MPIC_VEC_IPI_0; printk(KERN_INFO "mpic: Initializing for %d sources\n", mpic->num_sources); @@ -747,12 +884,6 @@ void __init mpic_init(struct mpic *mpic) MPIC_VECPRI_MASK | (10 << MPIC_VECPRI_PRIORITY_SHIFT) | (MPIC_VEC_IPI_0 + i)); -#ifdef CONFIG_SMP - if (!(mpic->flags & MPIC_PRIMARY)) - continue; - irq_desc[mpic->ipi_offset+i].status |= IRQ_PER_CPU; - irq_desc[mpic->ipi_offset+i].chip = &mpic->hc_ipi; -#endif /* CONFIG_SMP */ } /* Initialize interrupt sources */ @@ -763,31 +894,21 @@ void __init mpic_init(struct mpic *mpic) /* Do the HT PIC fixups on U3 broken mpic */ DBG("MPIC flags: %x\n", mpic->flags); if ((mpic->flags & MPIC_BROKEN_U3) && (mpic->flags & MPIC_PRIMARY)) - mpic_scan_ht_pics(mpic); + mpic_scan_ht_pics(mpic); #endif /* CONFIG_MPIC_BROKEN_U3 */ for (i = 0; i < mpic->num_sources; i++) { /* start with vector = source number, and masked */ u32 vecpri = MPIC_VECPRI_MASK | i | (8 << MPIC_VECPRI_PRIORITY_SHIFT); - int level = 0; + int level = 1; - /* if it's an IPI, we skip it */ - if ((mpic->irq_offset + i) >= (mpic->ipi_offset + i) && - (mpic->irq_offset + i) < (mpic->ipi_offset + i + 4)) - continue; - /* do senses munging */ - if (mpic->senses && i < mpic->senses_count) { - if (mpic->senses[i] & IRQ_SENSE_LEVEL) - vecpri |= MPIC_VECPRI_SENSE_LEVEL; - if (mpic->senses[i] & IRQ_POLARITY_POSITIVE) - vecpri |= MPIC_VECPRI_POLARITY_POSITIVE; - } else + if (mpic->senses && i < mpic->senses_count) + vecpri = mpic_flags_to_vecpri(mpic->senses[i], + &level); + else vecpri |= MPIC_VECPRI_SENSE_LEVEL; - /* remember if it was a level interrupts */ - level = (vecpri & MPIC_VECPRI_SENSE_LEVEL); - /* deal with broken U3 */ if (mpic->flags & MPIC_BROKEN_U3) { #ifdef CONFIG_MPIC_BROKEN_U3 @@ -808,12 +929,6 @@ void __init mpic_init(struct mpic *mpic) mpic_irq_write(i, MPIC_IRQ_VECTOR_PRI, vecpri); mpic_irq_write(i, MPIC_IRQ_DESTINATION, 1 << hard_smp_processor_id()); - - /* init linux descriptors */ - if (i < mpic->irq_count) { - irq_desc[mpic->irq_offset+i].status = level ? IRQ_LEVEL : 0; - irq_desc[mpic->irq_offset+i].chip = &mpic->hc_irq; - } } /* Init spurrious vector */ @@ -854,19 +969,20 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri) { int is_ipi; struct mpic *mpic = mpic_find(irq, &is_ipi); + unsigned int src = mpic_irq_to_hw(irq); unsigned long flags; u32 reg; spin_lock_irqsave(&mpic_lock, flags); if (is_ipi) { - reg = mpic_ipi_read(irq - mpic->ipi_offset) & + reg = mpic_ipi_read(src - MPIC_VEC_IPI_0) & ~MPIC_VECPRI_PRIORITY_MASK; - mpic_ipi_write(irq - mpic->ipi_offset, + mpic_ipi_write(src - MPIC_VEC_IPI_0, reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT)); } else { - reg = mpic_irq_read(irq - mpic->irq_offset,MPIC_IRQ_VECTOR_PRI) + reg = mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) & ~MPIC_VECPRI_PRIORITY_MASK; - mpic_irq_write(irq - mpic->irq_offset, MPIC_IRQ_VECTOR_PRI, + mpic_irq_write(src, MPIC_IRQ_VECTOR_PRI, reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT)); } spin_unlock_irqrestore(&mpic_lock, flags); @@ -876,14 +992,15 @@ unsigned int mpic_irq_get_priority(unsigned int irq) { int is_ipi; struct mpic *mpic = mpic_find(irq, &is_ipi); + unsigned int src = mpic_irq_to_hw(irq); unsigned long flags; u32 reg; spin_lock_irqsave(&mpic_lock, flags); if (is_ipi) - reg = mpic_ipi_read(irq - mpic->ipi_offset); + reg = mpic_ipi_read(src = MPIC_VEC_IPI_0); else - reg = mpic_irq_read(irq - mpic->irq_offset, MPIC_IRQ_VECTOR_PRI); + reg = mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI); spin_unlock_irqrestore(&mpic_lock, flags); return (reg & MPIC_VECPRI_PRIORITY_MASK) >> MPIC_VECPRI_PRIORITY_SHIFT; } @@ -978,37 +1095,20 @@ void mpic_send_ipi(unsigned int ipi_no, unsigned int cpu_mask) mpic_physmask(cpu_mask & cpus_addr(cpu_online_map)[0])); } -int mpic_get_one_irq(struct mpic *mpic, struct pt_regs *regs) +unsigned int mpic_get_one_irq(struct mpic *mpic, struct pt_regs *regs) { - u32 irq; + u32 src; - irq = mpic_cpu_read(MPIC_CPU_INTACK) & MPIC_VECPRI_VECTOR_MASK; + src = mpic_cpu_read(MPIC_CPU_INTACK) & MPIC_VECPRI_VECTOR_MASK; #ifdef DEBUG_LOW - DBG("%s: get_one_irq(): %d\n", mpic->name, irq); + DBG("%s: get_one_irq(): %d\n", mpic->name, src); #endif - if (mpic->cascade && irq == mpic->cascade_vec) { -#ifdef DEBUG_LOW - DBG("%s: cascading ...\n", mpic->name); -#endif - irq = mpic->cascade(regs, mpic->cascade_data); - mpic_eoi(mpic); - return irq; - } - if (unlikely(irq == MPIC_VEC_SPURRIOUS)) - return -1; - if (irq < MPIC_VEC_IPI_0) { -#ifdef DEBUG_IRQ - DBG("%s: irq %d\n", mpic->name, irq + mpic->irq_offset); -#endif - return irq + mpic->irq_offset; - } -#ifdef DEBUG_IPI - DBG("%s: ipi %d !\n", mpic->name, irq - MPIC_VEC_IPI_0); -#endif - return irq - MPIC_VEC_IPI_0 + mpic->ipi_offset; + if (unlikely(src == MPIC_VEC_SPURRIOUS)) + return NO_IRQ; + return irq_linear_revmap(mpic->irqhost, src); } -int mpic_get_irq(struct pt_regs *regs) +unsigned int mpic_get_irq(struct pt_regs *regs) { struct mpic *mpic = mpic_primary; @@ -1022,25 +1122,27 @@ int mpic_get_irq(struct pt_regs *regs) void mpic_request_ipis(void) { struct mpic *mpic = mpic_primary; - + int i; + static char *ipi_names[] = { + "IPI0 (call function)", + "IPI1 (reschedule)", + "IPI2 (unused)", + "IPI3 (debugger break)", + }; BUG_ON(mpic == NULL); - - printk("requesting IPIs ... \n"); - /* - * IPIs are marked IRQF_DISABLED as they must run with irqs - * disabled - */ - request_irq(mpic->ipi_offset+0, mpic_ipi_action, IRQF_DISABLED, - "IPI0 (call function)", mpic); - request_irq(mpic->ipi_offset+1, mpic_ipi_action, IRQF_DISABLED, - "IPI1 (reschedule)", mpic); - request_irq(mpic->ipi_offset+2, mpic_ipi_action, IRQF_DISABLED, - "IPI2 (unused)", mpic); - request_irq(mpic->ipi_offset+3, mpic_ipi_action, IRQF_DISABLED, - "IPI3 (debugger break)", mpic); - - printk("IPIs requested... \n"); + printk(KERN_INFO "mpic: requesting IPIs ... \n"); + + for (i = 0; i < 4; i++) { + unsigned int vipi = irq_create_mapping(mpic->irqhost, + MPIC_VEC_IPI_0 + i, 0); + if (vipi == NO_IRQ) { + printk(KERN_ERR "Failed to map IPI %d\n", i); + break; + } + request_irq(vipi, mpic_ipi_action, IRQF_DISABLED, + ipi_names[i], mpic); + } } void smp_mpic_message_pass(int target, int msg) diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile index 490749ca88f9..2497bbc07e76 100644 --- a/arch/ppc/syslib/Makefile +++ b/arch/ppc/syslib/Makefile @@ -104,3 +104,5 @@ obj-$(CONFIG_PPC_MPC52xx) += mpc52xx_setup.o mpc52xx_pic.o \ ifeq ($(CONFIG_PPC_MPC52xx),y) obj-$(CONFIG_PCI) += mpc52xx_pci.o endif + +obj-$(CONFIG_PPC_I8259) += i8259.o diff --git a/arch/ppc/syslib/i8259.c b/arch/ppc/syslib/i8259.c new file mode 100644 index 000000000000..eb35353af837 --- /dev/null +++ b/arch/ppc/syslib/i8259.c @@ -0,0 +1,212 @@ +/* + * i8259 interrupt controller driver. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/interrupt.h> +#include <asm/io.h> +#include <asm/i8259.h> + +static volatile void __iomem *pci_intack; /* RO, gives us the irq vector */ + +static unsigned char cached_8259[2] = { 0xff, 0xff }; +#define cached_A1 (cached_8259[0]) +#define cached_21 (cached_8259[1]) + +static DEFINE_SPINLOCK(i8259_lock); + +static int i8259_pic_irq_offset; + +/* + * Acknowledge the IRQ using either the PCI host bridge's interrupt + * acknowledge feature or poll. How i8259_init() is called determines + * which is called. It should be noted that polling is broken on some + * IBM and Motorola PReP boxes so we must use the int-ack feature on them. + */ +int i8259_irq(struct pt_regs *regs) +{ + int irq; + + spin_lock(&i8259_lock); + + /* Either int-ack or poll for the IRQ */ + if (pci_intack) + irq = readb(pci_intack); + else { + /* Perform an interrupt acknowledge cycle on controller 1. */ + outb(0x0C, 0x20); /* prepare for poll */ + irq = inb(0x20) & 7; + if (irq == 2 ) { + /* + * Interrupt is cascaded so perform interrupt + * acknowledge on controller 2. + */ + outb(0x0C, 0xA0); /* prepare for poll */ + irq = (inb(0xA0) & 7) + 8; + } + } + + if (irq == 7) { + /* + * This may be a spurious interrupt. + * + * Read the interrupt status register (ISR). If the most + * significant bit is not set then there is no valid + * interrupt. + */ + if (!pci_intack) + outb(0x0B, 0x20); /* ISR register */ + if(~inb(0x20) & 0x80) + irq = -1; + } + + spin_unlock(&i8259_lock); + return irq + i8259_pic_irq_offset; +} + +static void i8259_mask_and_ack_irq(unsigned int irq_nr) +{ + unsigned long flags; + + spin_lock_irqsave(&i8259_lock, flags); + irq_nr -= i8259_pic_irq_offset; + if (irq_nr > 7) { + cached_A1 |= 1 << (irq_nr-8); + inb(0xA1); /* DUMMY */ + outb(cached_A1, 0xA1); + outb(0x20, 0xA0); /* Non-specific EOI */ + outb(0x20, 0x20); /* Non-specific EOI to cascade */ + } else { + cached_21 |= 1 << irq_nr; + inb(0x21); /* DUMMY */ + outb(cached_21, 0x21); + outb(0x20, 0x20); /* Non-specific EOI */ + } + spin_unlock_irqrestore(&i8259_lock, flags); +} + +static void i8259_set_irq_mask(int irq_nr) +{ + outb(cached_A1,0xA1); + outb(cached_21,0x21); +} + +static void i8259_mask_irq(unsigned int irq_nr) +{ + unsigned long flags; + + spin_lock_irqsave(&i8259_lock, flags); + irq_nr -= i8259_pic_irq_offset; + if (irq_nr < 8) + cached_21 |= 1 << irq_nr; + else + cached_A1 |= 1 << (irq_nr-8); + i8259_set_irq_mask(irq_nr); + spin_unlock_irqrestore(&i8259_lock, flags); +} + +static void i8259_unmask_irq(unsigned int irq_nr) +{ + unsigned long flags; + + spin_lock_irqsave(&i8259_lock, flags); + irq_nr -= i8259_pic_irq_offset; + if (irq_nr < 8) + cached_21 &= ~(1 << irq_nr); + else + cached_A1 &= ~(1 << (irq_nr-8)); + i8259_set_irq_mask(irq_nr); + spin_unlock_irqrestore(&i8259_lock, flags); +} + +static struct irq_chip i8259_pic = { + .typename = " i8259 ", + .mask = i8259_mask_irq, + .unmask = i8259_unmask_irq, + .mask_ack = i8259_mask_and_ack_irq, +}; + +static struct resource pic1_iores = { + .name = "8259 (master)", + .start = 0x20, + .end = 0x21, + .flags = IORESOURCE_BUSY, +}; + +static struct resource pic2_iores = { + .name = "8259 (slave)", + .start = 0xa0, + .end = 0xa1, + .flags = IORESOURCE_BUSY, +}; + +static struct resource pic_edgectrl_iores = { + .name = "8259 edge control", + .start = 0x4d0, + .end = 0x4d1, + .flags = IORESOURCE_BUSY, +}; + +static struct irqaction i8259_irqaction = { + .handler = no_action, + .flags = SA_INTERRUPT, + .mask = CPU_MASK_NONE, + .name = "82c59 secondary cascade", +}; + +/* + * i8259_init() + * intack_addr - PCI interrupt acknowledge (real) address which will return + * the active irq from the 8259 + */ +void __init i8259_init(unsigned long intack_addr, int offset) +{ + unsigned long flags; + int i; + + spin_lock_irqsave(&i8259_lock, flags); + i8259_pic_irq_offset = offset; + + /* init master interrupt controller */ + outb(0x11, 0x20); /* Start init sequence */ + outb(0x00, 0x21); /* Vector base */ + outb(0x04, 0x21); /* edge tiggered, Cascade (slave) on IRQ2 */ + outb(0x01, 0x21); /* Select 8086 mode */ + + /* init slave interrupt controller */ + outb(0x11, 0xA0); /* Start init sequence */ + outb(0x08, 0xA1); /* Vector base */ + outb(0x02, 0xA1); /* edge triggered, Cascade (slave) on IRQ2 */ + outb(0x01, 0xA1); /* Select 8086 mode */ + + /* always read ISR */ + outb(0x0B, 0x20); + outb(0x0B, 0xA0); + + /* Mask all interrupts */ + outb(cached_A1, 0xA1); + outb(cached_21, 0x21); + + spin_unlock_irqrestore(&i8259_lock, flags); + + for (i = 0; i < NUM_ISA_INTERRUPTS; ++i) { + set_irq_chip_and_handler(offset + i, &i8259_pic, + handle_level_irq); + irq_desc[offset + i].status |= IRQ_LEVEL; + } + + /* reserve our resources */ + setup_irq(offset + 2, &i8259_irqaction); + request_resource(&ioport_resource, &pic1_iores); + request_resource(&ioport_resource, &pic2_iores); + request_resource(&ioport_resource, &pic_edgectrl_iores); + + if (intack_addr != 0) + pci_intack = ioremap(intack_addr, 1); + +} |