diff options
| author | Michal Marek <mmarek@suse.cz> | 2010-10-12 17:09:06 +0400 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-10-12 17:09:06 +0400 |
| commit | 239060b93bb30a4ad55f1ecaa512464a035cc5ba (patch) | |
| tree | 77f79810e57d4fc24356eca0cd6db463e8994128 /arch/microblaze | |
| parent | 1408b15b98635a13bad2e2a50b3c2ae2ccdf625b (diff) | |
| parent | e9203c988234aa512bd45ca32b52e21c7bbfc414 (diff) | |
| download | linux-239060b93bb30a4ad55f1ecaa512464a035cc5ba.tar.xz | |
Merge branch 'kbuild/rc-fixes' into kbuild/kconfig
We need to revert the temporary hack in 71ebc01, hence the merge.
Diffstat (limited to 'arch/microblaze')
50 files changed, 1007 insertions, 3721 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 0c5f43728a71..44b4b76d7eca 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -9,9 +9,12 @@ config MICROBLAZE select USB_ARCH_HAS_EHCI select ARCH_WANT_OPTIONAL_GPIOLIB select HAVE_OPROFILE + select HAVE_ARCH_KGDB select HAVE_DMA_ATTRS select HAVE_DMA_API_DEBUG select TRACING_SUPPORT + select OF + select OF_FLATTREE config SWAP def_bool n @@ -43,9 +46,6 @@ config GENERIC_IRQ_PROBE config GENERIC_CALIBRATE_DELAY def_bool y -config GENERIC_TIME - def_bool y - config GENERIC_TIME_VSYSCALL def_bool n @@ -70,9 +70,6 @@ config LOCKDEP_SUPPORT config HAVE_LATENCYTOP_SUPPORT def_bool y -config DTC - def_bool y - source "init/Kconfig" source "kernel/Kconfig.freezer" @@ -119,18 +116,6 @@ config CMDLINE_FORCE Set this to have arguments from the default kernel command string override those passed by the boot loader. -config OF - def_bool y - select OF_FLATTREE - -config PROC_DEVICETREE - bool "Support for device tree in /proc" - depends on PROC_FS - help - This option adds a device-tree directory under /proc which contains - an image of the device tree that the kernel copies from Open - Firmware or other boot firmware. If unsure, say Y here. - endmenu menu "Advanced setup" @@ -218,6 +203,36 @@ config TASK_SIZE hex "Size of user task space" if TASK_SIZE_BOOL default "0x80000000" +choice + prompt "Page size" + default MICROBLAZE_4K_PAGES + depends on ADVANCED_OPTIONS && !MMU + help + Select the kernel logical page size. Increasing the page size + will reduce software overhead at each page boundary, allow + hardware prefetch mechanisms to be more effective, and allow + larger dma transfers increasing IO efficiency and reducing + overhead. However the utilization of memory will increase. + For example, each cached file will using a multiple of the + page size to hold its contents and the difference between the + end of file and the end of page is wasted. + + If unsure, choose 4K_PAGES. + +config MICROBLAZE_4K_PAGES + bool "4k page size" + +config MICROBLAZE_8K_PAGES + bool "8k page size" + +config MICROBLAZE_16K_PAGES + bool "16k page size" + +config MICROBLAZE_32K_PAGES + bool "32k page size" + +endchoice + endmenu source "mm/Kconfig" diff --git a/arch/microblaze/Kconfig.debug b/arch/microblaze/Kconfig.debug index 9dc708a7f700..e6e5e0da28c3 100644 --- a/arch/microblaze/Kconfig.debug +++ b/arch/microblaze/Kconfig.debug @@ -10,6 +10,7 @@ source "lib/Kconfig.debug" config EARLY_PRINTK bool "Early printk function for kernel" + depends on SERIAL_UARTLITE_CONSOLE default n help This option turns on/off early printk messages to console. diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile index 72f6e8583746..592c7079de88 100644 --- a/arch/microblaze/Makefile +++ b/arch/microblaze/Makefile @@ -25,7 +25,7 @@ ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY))) ifeq ($(CPU_MAJOR),3) CPUFLAGS-1 += -mno-xl-soft-mul else - # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support. + # USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support. CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul endif diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile index 57f50c2371c6..be01d78750d9 100644 --- a/arch/microblaze/boot/Makefile +++ b/arch/microblaze/boot/Makefile @@ -35,13 +35,14 @@ quiet_cmd_cp = CP $< $@$2 cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false) quiet_cmd_strip = STRIP $@ - cmd_strip = $(STRIP) -K _start -K _end -K __log_buf -K _fdt_start vmlinux -o $@ + cmd_strip = $(STRIP) -K microblaze_start -K _end -K __log_buf \ + -K _fdt_start vmlinux -o $@ quiet_cmd_uimage = UIMAGE $@.ub - cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A microblaze -O linux -T kernel \ - -C none -n 'Linux-$(KERNELRELEASE)' \ - -a $(CONFIG_KERNEL_BASE_ADDR) -e $(CONFIG_KERNEL_BASE_ADDR) \ - -d $@ $@.ub + cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A microblaze -O linux -T kernel \ + -C none -n 'Linux-$(KERNELRELEASE)' \ + -a $(CONFIG_KERNEL_BASE_ADDR) -e $(CONFIG_KERNEL_BASE_ADDR) \ + -d $@ $@.ub $(obj)/simpleImage.%: vmlinux FORCE $(call if_changed,cp,.unstrip) diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig index 3c91cf6192c6..8b422b12ef78 100644 --- a/arch/microblaze/configs/mmu_defconfig +++ b/arch/microblaze/configs/mmu_defconfig @@ -1,910 +1,70 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.34-rc6 -# Thu May 6 11:22:14 2010 -# -CONFIG_MICROBLAZE=y -# CONFIG_SWAP is not set -CONFIG_RWSEM_GENERIC_SPINLOCK=y -# CONFIG_ARCH_HAS_ILOG2_U32 is not set -# CONFIG_ARCH_HAS_ILOG2_U64 is not set -CONFIG_GENERIC_FIND_NEXT_BIT=y -CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_HARDIRQS=y -CONFIG_GENERIC_IRQ_PROBE=y -CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_GENERIC_TIME=y -# CONFIG_GENERIC_TIME_VSYSCALL is not set -CONFIG_GENERIC_CLOCKEVENTS=y -CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y -CONFIG_GENERIC_GPIO=y -CONFIG_GENERIC_CSUM=y -CONFIG_STACKTRACE_SUPPORT=y -CONFIG_LOCKDEP_SUPPORT=y -CONFIG_HAVE_LATENCYTOP_SUPPORT=y -CONFIG_DTC=y -CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" -CONFIG_CONSTRUCTORS=y - -# -# General setup -# CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 -CONFIG_LOCALVERSION="" -CONFIG_LOCALVERSION_AUTO=y CONFIG_SYSVIPC=y -CONFIG_SYSVIPC_SYSCTL=y -# CONFIG_POSIX_MQUEUE is not set -# CONFIG_BSD_PROCESS_ACCT is not set -# CONFIG_TASKSTATS is not set -# CONFIG_AUDIT is not set - -# -# RCU Subsystem -# -CONFIG_TREE_RCU=y -# CONFIG_TREE_PREEMPT_RCU is not set -# CONFIG_TINY_RCU is not set -# CONFIG_RCU_TRACE is not set -CONFIG_RCU_FANOUT=32 -# CONFIG_RCU_FANOUT_EXACT is not set -# CONFIG_TREE_RCU_TRACE is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y -CONFIG_LOG_BUF_SHIFT=17 -# CONFIG_CGROUPS is not set -CONFIG_SYSFS_DEPRECATED=y CONFIG_SYSFS_DEPRECATED_V2=y -# CONFIG_RELAY is not set -# CONFIG_NAMESPACES is not set CONFIG_BLK_DEV_INITRD=y CONFIG_INITRAMFS_SOURCE="rootfs.cpio" -CONFIG_INITRAMFS_ROOT_UID=0 -CONFIG_INITRAMFS_ROOT_GID=0 -CONFIG_RD_GZIP=y -# CONFIG_RD_BZIP2 is not set -# CONFIG_RD_LZMA is not set -# CONFIG_RD_LZO is not set -# CONFIG_INITRAMFS_COMPRESSION_NONE is not set CONFIG_INITRAMFS_COMPRESSION_GZIP=y -# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set -# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set -# CONFIG_INITRAMFS_COMPRESSION_LZO is not set # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_SYSCTL=y -CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y -CONFIG_SYSCTL_SYSCALL=y -CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y # CONFIG_HOTPLUG is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -CONFIG_ELF_CORE=y # CONFIG_BASE_FULL is not set # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set -CONFIG_TIMERFD=y -CONFIG_EVENTFD=y # CONFIG_SHMEM is not set -CONFIG_AIO=y - -# -# Kernel Performance Events And Counters -# -CONFIG_VM_EVENT_COUNTERS=y -CONFIG_COMPAT_BRK=y CONFIG_SLAB=y -# CONFIG_SLUB is not set -# CONFIG_SLOB is not set -# CONFIG_PROFILING is not set -CONFIG_HAVE_OPROFILE=y -CONFIG_HAVE_DMA_ATTRS=y -CONFIG_HAVE_DMA_API_DEBUG=y - -# -# GCOV-based kernel profiling -# -CONFIG_SLOW_WORK=y -# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set -CONFIG_SLABINFO=y -CONFIG_BASE_SMALL=1 CONFIG_MODULES=y -# CONFIG_MODULE_FORCE_LOAD is not set CONFIG_MODULE_UNLOAD=y -# CONFIG_MODULE_FORCE_UNLOAD is not set -# CONFIG_MODVERSIONS is not set -# CONFIG_MODULE_SRCVERSION_ALL is not set -CONFIG_BLOCK=y -CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_BLK_DEV_INTEGRITY is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -CONFIG_IOSCHED_DEADLINE=y -CONFIG_IOSCHED_CFQ=y -# CONFIG_DEFAULT_DEADLINE is not set -CONFIG_DEFAULT_CFQ=y -# CONFIG_DEFAULT_NOOP is not set -CONFIG_DEFAULT_IOSCHED="cfq" -# CONFIG_INLINE_SPIN_TRYLOCK is not set -# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set -# CONFIG_INLINE_SPIN_LOCK is not set -# CONFIG_INLINE_SPIN_LOCK_BH is not set -# CONFIG_INLINE_SPIN_LOCK_IRQ is not set -# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set -# CONFIG_INLINE_SPIN_UNLOCK is not set -# CONFIG_INLINE_SPIN_UNLOCK_BH is not set -# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set -# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set -# CONFIG_INLINE_READ_TRYLOCK is not set -# CONFIG_INLINE_READ_LOCK is not set -# CONFIG_INLINE_READ_LOCK_BH is not set -# CONFIG_INLINE_READ_LOCK_IRQ is not set -# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set -# CONFIG_INLINE_READ_UNLOCK is not set -# CONFIG_INLINE_READ_UNLOCK_BH is not set -# CONFIG_INLINE_READ_UNLOCK_IRQ is not set -# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set -# CONFIG_INLINE_WRITE_TRYLOCK is not set -# CONFIG_INLINE_WRITE_LOCK is not set -# CONFIG_INLINE_WRITE_LOCK_BH is not set -# CONFIG_INLINE_WRITE_LOCK_IRQ is not set -# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set -# CONFIG_INLINE_WRITE_UNLOCK is not set -# CONFIG_INLINE_WRITE_UNLOCK_BH is not set -# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set -# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set -# CONFIG_MUTEX_SPIN_ON_OWNER is not set -# CONFIG_FREEZER is not set - -# -# Platform options -# -CONFIG_PLATFORM_GENERIC=y -CONFIG_OPT_LIB_FUNCTION=y CONFIG_OPT_LIB_ASM=y - -# -# Definitions for MICROBLAZE0 -# -CONFIG_KERNEL_BASE_ADDR=0x90000000 -CONFIG_XILINX_MICROBLAZE0_FAMILY="virtex5" CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1 CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1 CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1 CONFIG_XILINX_MICROBLAZE0_USE_DIV=1 CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=2 CONFIG_XILINX_MICROBLAZE0_USE_FPU=2 -CONFIG_XILINX_MICROBLAZE0_HW_VER="7.10.d" - -# -# Processor type and features -# -# CONFIG_NO_HZ is not set -# CONFIG_HIGH_RES_TIMERS is not set -CONFIG_GENERIC_CLOCKEVENTS_BUILD=y -CONFIG_PREEMPT_NONE=y -# CONFIG_PREEMPT_VOLUNTARY is not set -# CONFIG_PREEMPT is not set CONFIG_HZ_100=y -# CONFIG_HZ_250 is not set -# CONFIG_HZ_300 is not set -# CONFIG_HZ_1000 is not set -CONFIG_HZ=100 -# CONFIG_SCHED_HRTICK is not set CONFIG_MMU=y - -# -# Boot options -# CONFIG_CMDLINE_BOOL=y -CONFIG_CMDLINE="console=ttyUL0,115200" CONFIG_CMDLINE_FORCE=y -CONFIG_OF=y -CONFIG_PROC_DEVICETREE=y - -# -# 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_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_PAGEFLAGS_EXTENDED=y -CONFIG_SPLIT_PTLOCK_CPUS=999999 -# CONFIG_PHYS_ADDR_T_64BIT is not set -CONFIG_ZONE_DMA_FLAG=0 -CONFIG_VIRT_TO_BUS=y -# CONFIG_KSM is not set -CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 - -# -# Exectuable file formats -# -CONFIG_BINFMT_ELF=y -# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set -# CONFIG_HAVE_AOUT is not set -# CONFIG_BINFMT_MISC is not set - -# -# Bus Options -# -# CONFIG_PCI is not set -# CONFIG_PCI_DOMAINS is not set -# CONFIG_PCI_SYSCALL is not set -# CONFIG_ARCH_SUPPORTS_MSI is not set CONFIG_NET=y - -# -# Networking options -# CONFIG_PACKET=y CONFIG_UNIX=y -CONFIG_XFRM=y -# CONFIG_XFRM_USER is not set -# CONFIG_XFRM_SUB_POLICY is not set -# CONFIG_XFRM_MIGRATE is not set -# CONFIG_XFRM_STATISTICS is not set -# CONFIG_NET_KEY is not set CONFIG_INET=y -# CONFIG_IP_MULTICAST is not set -# CONFIG_IP_ADVANCED_ROUTER is not set -CONFIG_IP_FIB_HASH=y -# CONFIG_IP_PNP is not set -# CONFIG_NET_IPIP is not set -# CONFIG_NET_IPGRE is not set -# CONFIG_ARPD is not set -# CONFIG_SYN_COOKIES is not set -# CONFIG_INET_AH is not set -# CONFIG_INET_ESP is not set -# CONFIG_INET_IPCOMP is not set -# CONFIG_INET_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_XFRM_MODE_BEET=y # CONFIG_INET_LRO is not set -CONFIG_INET_DIAG=y -CONFIG_INET_TCP_DIAG=y -# CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_CUBIC=y -CONFIG_DEFAULT_TCP_CONG="cubic" -# CONFIG_TCP_MD5SIG is not set # CONFIG_IPV6 is not set -# CONFIG_NETWORK_SECMARK is not set -# CONFIG_NETFILTER is not set -# CONFIG_IP_DCCP is not set -# CONFIG_IP_SCTP is not set -# CONFIG_RDS is not set -# CONFIG_TIPC is not set -# CONFIG_ATM is not set -# CONFIG_BRIDGE is not set -# CONFIG_NET_DSA 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_ECONET is not set -# CONFIG_WAN_ROUTER is not set -# CONFIG_PHONET is not set -# CONFIG_IEEE802154 is not set -# CONFIG_NET_SCHED is not set -# CONFIG_DCB is not set - -# -# Network testing -# -# CONFIG_NET_PKTGEN is not set -# CONFIG_HAMRADIO is not set -# CONFIG_CAN is not set -# CONFIG_IRDA is not set -# CONFIG_BT is not set -# CONFIG_AF_RXRPC is not set -CONFIG_WIRELESS=y -# CONFIG_CFG80211 is not set -# CONFIG_LIB80211 is not set - -# -# CFG80211 needs to be enabled for MAC80211 -# -# CONFIG_WIMAX is not set -# CONFIG_RFKILL is not set -# CONFIG_NET_9P is not set - -# -# Device Drivers -# - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_DEBUG_DRIVER is not set -# CONFIG_DEBUG_DEVRES is not set -# CONFIG_SYS_HYPERVISOR is not set -# CONFIG_CONNECTOR is not set -# CONFIG_MTD is not set -CONFIG_OF_FLATTREE=y -CONFIG_OF_DEVICE=y -CONFIG_OF_MDIO=y -# CONFIG_PARPORT is not set -CONFIG_BLK_DEV=y -# CONFIG_BLK_DEV_COW_COMMON is not set -# CONFIG_BLK_DEV_LOOP is not set - -# -# DRBD disabled because PROC_FS, INET or CONNECTOR not selected -# -# CONFIG_BLK_DEV_NBD is not set +CONFIG_PROC_DEVICETREE=y CONFIG_BLK_DEV_RAM=y -CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=8192 -# CONFIG_BLK_DEV_XIP is not set -# CONFIG_CDROM_PKTCDVD is not set -# CONFIG_ATA_OVER_ETH is not set -# CONFIG_XILINX_SYSACE is not set -CONFIG_MISC_DEVICES=y -# CONFIG_ENCLOSURE_SERVICES is not set -# CONFIG_C2PORT is not set - -# -# EEPROM support -# -# CONFIG_EEPROM_93CX6 is not set - -# -# SCSI device support -# -CONFIG_SCSI_MOD=y -# CONFIG_RAID_ATTRS is not set -# CONFIG_SCSI is not set -# CONFIG_SCSI_DMA is not set -# CONFIG_SCSI_NETLINK is not set -# CONFIG_ATA is not set -# CONFIG_MD is not set CONFIG_NETDEVICES=y -# CONFIG_DUMMY is not set -# CONFIG_BONDING is not set -# CONFIG_MACVLAN is not set -# CONFIG_EQUALIZER is not set -# CONFIG_TUN is not set -# CONFIG_VETH is not set -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 is not set -# CONFIG_VITESSE_PHY is not set -# CONFIG_SMSC_PHY is not set -# CONFIG_BROADCOM_PHY is not set -# CONFIG_ICPLUS_PHY is not set -# CONFIG_REALTEK_PHY is not set -# CONFIG_NATIONAL_PHY is not set -# CONFIG_STE10XP is not set -# CONFIG_LSI_ET1011C_PHY is not set -# CONFIG_MICREL_PHY is not set -# CONFIG_FIXED_PHY is not set -# CONFIG_MDIO_BITBANG is not set CONFIG_NET_ETHERNET=y -# CONFIG_MII is not set -# CONFIG_ETHOC is not set -# CONFIG_DNET is not set -# CONFIG_IBM_NEW_EMAC_ZMII is not set -# CONFIG_IBM_NEW_EMAC_RGMII is not set -# CONFIG_IBM_NEW_EMAC_TAH is not set -# CONFIG_IBM_NEW_EMAC_EMAC4 is not set -# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set -# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set -# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set -# CONFIG_B44 is not set -# CONFIG_KS8842 is not set -# CONFIG_KS8851_MLL is not set CONFIG_XILINX_EMACLITE=y -CONFIG_NETDEV_1000=y -CONFIG_NETDEV_10000=y -CONFIG_WLAN=y -# CONFIG_HOSTAP is not set - -# -# Enable WiMAX (Networking options) to see the WiMAX drivers -# -# CONFIG_WAN is not set -# CONFIG_PPP is not set -# CONFIG_SLIP is not set -# CONFIG_NETCONSOLE is not set -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set -# CONFIG_ISDN is not set -# CONFIG_PHONE is not set - -# -# Input device support -# # CONFIG_INPUT 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_DEVKMEM=y -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set - -# -# Non-8250 serial port support -# CONFIG_SERIAL_UARTLITE=y CONFIG_SERIAL_UARTLITE_CONSOLE=y -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -# CONFIG_SERIAL_TIMBERDALE is not set -# CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set -CONFIG_UNIX98_PTYS=y -# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set -CONFIG_LEGACY_PTYS=y -CONFIG_LEGACY_PTY_COUNT=256 -# CONFIG_IPMI_HANDLER is not set # CONFIG_HW_RANDOM is not set -# CONFIG_RTC is not set -# CONFIG_GEN_RTC is not set -# CONFIG_XILINX_HWICAP is not set -# CONFIG_R3964 is not set -# CONFIG_RAW_DRIVER is not set -# CONFIG_TCG_TPM is not set -# CONFIG_I2C is not set -# CONFIG_SPI is not set - -# -# PPS support -# -# CONFIG_PPS is not set -CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y -# CONFIG_GPIOLIB is not set -# CONFIG_W1 is not set -# CONFIG_POWER_SUPPLY is not set # CONFIG_HWMON is not set -# CONFIG_THERMAL is not set -# CONFIG_WATCHDOG is not set -CONFIG_SSB_POSSIBLE=y - -# -# Sonics Silicon Backplane -# -# CONFIG_SSB is not set - -# -# Multifunction device drivers -# -# CONFIG_MFD_CORE is not set -# CONFIG_MFD_SM501 is not set -# CONFIG_HTC_PASIC3 is not set -# CONFIG_MFD_TMIO is not set -# CONFIG_REGULATOR is not set -# CONFIG_MEDIA_SUPPORT is not set - -# -# Graphics support -# -# CONFIG_VGASTATE is not set -# CONFIG_VIDEO_OUTPUT_CONTROL is not set -# CONFIG_FB is not set -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set - -# -# Display device support -# -# CONFIG_DISPLAY_SUPPORT is not set -# CONFIG_SOUND is not set # CONFIG_USB_SUPPORT is not set -CONFIG_USB_ARCH_HAS_EHCI=y -# CONFIG_MMC is not set -# CONFIG_MEMSTICK is not set -# CONFIG_NEW_LEDS is not set -# CONFIG_ACCESSIBILITY is not set -# CONFIG_RTC_CLASS is not set -# CONFIG_DMADEVICES is not set -# CONFIG_AUXDISPLAY is not set -# CONFIG_UIO is not set - -# -# TI VLYNQ -# -# CONFIG_STAGING is not set - -# -# File systems -# CONFIG_EXT2_FS=y -# CONFIG_EXT2_FS_XATTR is not set -# CONFIG_EXT2_FS_XIP is not set -# CONFIG_EXT3_FS is not set -# CONFIG_EXT4_FS is not set -# 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_GFS2_FS is not set -# CONFIG_OCFS2_FS is not set -# CONFIG_BTRFS_FS is not set -# CONFIG_NILFS2_FS is not set -CONFIG_FILE_LOCKING=y -CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set -# CONFIG_INOTIFY is not set -CONFIG_INOTIFY_USER=y -# CONFIG_QUOTA is not set -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set -# CONFIG_FUSE_FS is not set - -# -# Caches -# -# CONFIG_FSCACHE 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 is not set -CONFIG_PROC_SYSCTL=y -CONFIG_PROC_PAGE_MONITOR=y -CONFIG_SYSFS=y -# CONFIG_HUGETLB_PAGE is not set -# CONFIG_CONFIGFS_FS is not set -CONFIG_MISC_FILESYSTEMS=y -# 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_LOGFS is not set -# CONFIG_CRAMFS is not set -# CONFIG_SQUASHFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_OMFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_ROMFS_FS is not set -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set -CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y -# CONFIG_NFS_V3_ACL is not set -# CONFIG_NFS_V4 is not set -# CONFIG_NFSD is not set -CONFIG_LOCKD=y -CONFIG_LOCKD_V4=y -CONFIG_NFS_COMMON=y -CONFIG_SUNRPC=y -# CONFIG_RPCSEC_GSS_KRB5 is not set -# CONFIG_RPCSEC_GSS_SPKM3 is not set -# CONFIG_SMB_FS is not set -# CONFIG_CEPH_FS is not set CONFIG_CIFS=y CONFIG_CIFS_STATS=y CONFIG_CIFS_STATS2=y -# CONFIG_CIFS_WEAK_PW_HASH is not set -# CONFIG_CIFS_XATTR is not set -# CONFIG_CIFS_DEBUG2 is not set -# CONFIG_CIFS_EXPERIMENTAL is not set -# CONFIG_NCP_FS is not set -# CONFIG_CODA_FS is not set -# CONFIG_AFS_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=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 -# CONFIG_SYSV68_PARTITION is not set -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 is not set -# CONFIG_NLS_ISO8859_1 is not set -# 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 -# CONFIG_DLM is not set - -# -# Kernel hacking -# -CONFIG_TRACE_IRQFLAGS_SUPPORT=y -# CONFIG_PRINTK_TIME is not set -CONFIG_ENABLE_WARN_DEPRECATED=y -CONFIG_ENABLE_MUST_CHECK=y -CONFIG_FRAME_WARN=1024 -# CONFIG_MAGIC_SYSRQ is not set -# CONFIG_STRIP_ASM_SYMS is not set -# CONFIG_UNUSED_SYMBOLS is not set -# CONFIG_DEBUG_FS is not set -# CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y -# CONFIG_DEBUG_SHIRQ is not set -CONFIG_DETECT_SOFTLOCKUP=y -# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set -CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0 CONFIG_DETECT_HUNG_TASK=y -# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set -CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0 -CONFIG_SCHED_DEBUG=y -# CONFIG_SCHEDSTATS is not set -# CONFIG_TIMER_STATS is not set -# CONFIG_DEBUG_OBJECTS is not set CONFIG_DEBUG_SLAB=y -# CONFIG_DEBUG_SLAB_LEAK is not set -# CONFIG_DEBUG_KMEMLEAK is not set CONFIG_DEBUG_SPINLOCK=y -# CONFIG_DEBUG_MUTEXES is not set -# CONFIG_DEBUG_LOCK_ALLOC is not set -# CONFIG_PROVE_LOCKING is not set -# CONFIG_LOCK_STAT is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set -# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set -# CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_INFO=y -# CONFIG_DEBUG_VM is not set -# CONFIG_DEBUG_WRITECOUNT is not set -# CONFIG_DEBUG_MEMORY_INIT is not set -# CONFIG_DEBUG_LIST is not set -# CONFIG_DEBUG_SG is not set -# CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_DEBUG_CREDENTIALS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set -# CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set -# CONFIG_BACKTRACE_SELF_TEST is not set -# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set -# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set -# CONFIG_FAULT_INJECTION is not set -# CONFIG_LATENCYTOP is not set -# CONFIG_SYSCTL_SYSCALL_CHECK is not set -# CONFIG_PAGE_POISONING is not set -CONFIG_HAVE_FUNCTION_TRACER=y -CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y -CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y -CONFIG_HAVE_DYNAMIC_FTRACE=y -CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y -CONFIG_TRACING_SUPPORT=y -CONFIG_FTRACE=y -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_IRQSOFF_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_ENABLE_DEFAULT_TRACERS is not set -# CONFIG_BOOT_TRACER is not set -CONFIG_BRANCH_PROFILE_NONE=y -# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set -# CONFIG_PROFILE_ALL_BRANCHES is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_DMA_API_DEBUG is not set -# CONFIG_SAMPLES is not set CONFIG_EARLY_PRINTK=y -# CONFIG_HEART_BEAT is not set CONFIG_DEBUG_BOOTMEM=y - -# -# Security options -# -# CONFIG_KEYS is not set -# CONFIG_SECURITY is not set -# CONFIG_SECURITYFS is not set -# CONFIG_DEFAULT_SECURITY_SELINUX is not set -# CONFIG_DEFAULT_SECURITY_SMACK is not set -# CONFIG_DEFAULT_SECURITY_TOMOYO is not set -CONFIG_DEFAULT_SECURITY_DAC=y -CONFIG_DEFAULT_SECURITY="" -CONFIG_CRYPTO=y - -# -# Crypto core or helper -# -# CONFIG_CRYPTO_MANAGER is not set -# CONFIG_CRYPTO_MANAGER2 is not set -# CONFIG_CRYPTO_GF128MUL is not set -# CONFIG_CRYPTO_NULL is not set -# CONFIG_CRYPTO_CRYPTD is not set -# CONFIG_CRYPTO_AUTHENC is not set -# CONFIG_CRYPTO_TEST is not set - -# -# Authenticated Encryption with Associated Data -# -# CONFIG_CRYPTO_CCM is not set -# CONFIG_CRYPTO_GCM is not set -# CONFIG_CRYPTO_SEQIV is not set - -# -# Block modes -# -# CONFIG_CRYPTO_CBC is not set -# CONFIG_CRYPTO_CTR is not set -# CONFIG_CRYPTO_CTS is not set -# CONFIG_CRYPTO_ECB is not set -# CONFIG_CRYPTO_LRW is not set -# CONFIG_CRYPTO_PCBC is not set -# CONFIG_CRYPTO_XTS is not set - -# -# Hash modes -# -# CONFIG_CRYPTO_HMAC is not set -# CONFIG_CRYPTO_XCBC is not set -# CONFIG_CRYPTO_VMAC is not set - -# -# Digest -# -# CONFIG_CRYPTO_CRC32C is not set -# CONFIG_CRYPTO_GHASH is not set -# CONFIG_CRYPTO_MD4 is not set -# CONFIG_CRYPTO_MD5 is not set -# CONFIG_CRYPTO_MICHAEL_MIC is not set -# CONFIG_CRYPTO_RMD128 is not set -# CONFIG_CRYPTO_RMD160 is not set -# CONFIG_CRYPTO_RMD256 is not set -# CONFIG_CRYPTO_RMD320 is not set -# CONFIG_CRYPTO_SHA1 is not set -# CONFIG_CRYPTO_SHA256 is not set -# CONFIG_CRYPTO_SHA512 is not set -# CONFIG_CRYPTO_TGR192 is not set -# CONFIG_CRYPTO_WP512 is not set - -# -# Ciphers -# -# CONFIG_CRYPTO_AES is not set -# CONFIG_CRYPTO_ANUBIS is not set -# CONFIG_CRYPTO_ARC4 is not set -# CONFIG_CRYPTO_BLOWFISH is not set -# CONFIG_CRYPTO_CAMELLIA is not set -# CONFIG_CRYPTO_CAST5 is not set -# CONFIG_CRYPTO_CAST6 is not set -# CONFIG_CRYPTO_DES is not set -# CONFIG_CRYPTO_FCRYPT is not set -# CONFIG_CRYPTO_KHAZAD is not set -# CONFIG_CRYPTO_SALSA20 is not set -# CONFIG_CRYPTO_SEED is not set -# CONFIG_CRYPTO_SERPENT is not set -# CONFIG_CRYPTO_TEA is not set -# CONFIG_CRYPTO_TWOFISH is not set - -# -# Compression -# -# CONFIG_CRYPTO_DEFLATE is not set -# CONFIG_CRYPTO_ZLIB is not set -# CONFIG_CRYPTO_LZO is not set - -# -# Random Number Generation -# # CONFIG_CRYPTO_ANSI_CPRNG is not set -CONFIG_CRYPTO_HW=y -# CONFIG_BINARY_PRINTF is not set - -# -# Library routines -# -CONFIG_BITREVERSE=y -CONFIG_GENERIC_FIND_LAST_BIT=y -# CONFIG_CRC_CCITT is not set -# CONFIG_CRC16 is not set -# CONFIG_CRC_T10DIF is not set -# CONFIG_CRC_ITU_T is not set -CONFIG_CRC32=y -# CONFIG_CRC7 is not set -# CONFIG_LIBCRC32C is not set -CONFIG_ZLIB_INFLATE=y -CONFIG_DECOMPRESS_GZIP=y -CONFIG_HAS_IOMEM=y -CONFIG_HAS_IOPORT=y -CONFIG_HAS_DMA=y -CONFIG_HAVE_LMB=y -CONFIG_NLATTR=y diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig index dd3a494257f4..ebc143c5368e 100644 --- a/arch/microblaze/configs/nommu_defconfig +++ b/arch/microblaze/configs/nommu_defconfig @@ -1,932 +1,85 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.34-rc6 -# Thu May 6 11:25:12 2010 -# -CONFIG_MICROBLAZE=y -# CONFIG_SWAP is not set -CONFIG_RWSEM_GENERIC_SPINLOCK=y -# CONFIG_ARCH_HAS_ILOG2_U32 is not set -# CONFIG_ARCH_HAS_ILOG2_U64 is not set -CONFIG_GENERIC_FIND_NEXT_BIT=y -CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_HARDIRQS=y -CONFIG_GENERIC_IRQ_PROBE=y -CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_GENERIC_TIME=y -# CONFIG_GENERIC_TIME_VSYSCALL is not set -CONFIG_GENERIC_CLOCKEVENTS=y -CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y -CONFIG_GENERIC_GPIO=y -CONFIG_GENERIC_CSUM=y -CONFIG_STACKTRACE_SUPPORT=y -CONFIG_LOCKDEP_SUPPORT=y -CONFIG_HAVE_LATENCYTOP_SUPPORT=y -CONFIG_DTC=y -CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" -CONFIG_CONSTRUCTORS=y - -# -# General setup -# CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 -CONFIG_LOCALVERSION="" -CONFIG_LOCALVERSION_AUTO=y CONFIG_SYSVIPC=y -CONFIG_SYSVIPC_SYSCTL=y CONFIG_POSIX_MQUEUE=y -CONFIG_POSIX_MQUEUE_SYSCTL=y CONFIG_BSD_PROCESS_ACCT=y CONFIG_BSD_PROCESS_ACCT_V3=y -# CONFIG_TASKSTATS is not set -# CONFIG_AUDIT is not set - -# -# RCU Subsystem -# -CONFIG_TREE_RCU=y -# CONFIG_TREE_PREEMPT_RCU is not set -# CONFIG_TINY_RCU is not set -# CONFIG_RCU_TRACE is not set -CONFIG_RCU_FANOUT=32 -# CONFIG_RCU_FANOUT_EXACT is not set -# CONFIG_TREE_RCU_TRACE is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y -CONFIG_LOG_BUF_SHIFT=17 -# CONFIG_CGROUPS is not set -CONFIG_SYSFS_DEPRECATED=y CONFIG_SYSFS_DEPRECATED_V2=y -# CONFIG_RELAY is not set -# CONFIG_NAMESPACES is not set -# CONFIG_BLK_DEV_INITRD is not set -CONFIG_CC_OPTIMIZE_FOR_SIZE=y -CONFIG_SYSCTL=y -CONFIG_ANON_INODES=y CONFIG_EMBEDDED=y -CONFIG_SYSCTL_SYSCALL=y -CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y # CONFIG_HOTPLUG is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -CONFIG_ELF_CORE=y # CONFIG_BASE_FULL is not set -CONFIG_FUTEX=y -CONFIG_EPOLL=y -CONFIG_SIGNALFD=y -CONFIG_TIMERFD=y -CONFIG_EVENTFD=y -CONFIG_AIO=y - -# -# Kernel Performance Events And Counters -# -CONFIG_VM_EVENT_COUNTERS=y -CONFIG_COMPAT_BRK=y CONFIG_SLAB=y -# CONFIG_SLUB is not set -# CONFIG_SLOB is not set -# CONFIG_MMAP_ALLOW_UNINITIALIZED is not set -# CONFIG_PROFILING is not set -CONFIG_HAVE_OPROFILE=y -CONFIG_HAVE_DMA_ATTRS=y -CONFIG_HAVE_DMA_API_DEBUG=y - -# -# GCOV-based kernel profiling -# -# CONFIG_GCOV_KERNEL is not set -# CONFIG_SLOW_WORK is not set -# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set -CONFIG_SLABINFO=y -CONFIG_RT_MUTEXES=y -CONFIG_BASE_SMALL=1 CONFIG_MODULES=y -# CONFIG_MODULE_FORCE_LOAD is not set CONFIG_MODULE_UNLOAD=y -# CONFIG_MODULE_FORCE_UNLOAD is not set -# CONFIG_MODVERSIONS is not set -# CONFIG_MODULE_SRCVERSION_ALL is not set -CONFIG_BLOCK=y -CONFIG_LBDAF=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_BLK_DEV_INTEGRITY is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -CONFIG_IOSCHED_DEADLINE=y -CONFIG_IOSCHED_CFQ=y -# CONFIG_DEFAULT_DEADLINE is not set -CONFIG_DEFAULT_CFQ=y -# CONFIG_DEFAULT_NOOP is not set -CONFIG_DEFAULT_IOSCHED="cfq" -# CONFIG_INLINE_SPIN_TRYLOCK is not set -# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set -# CONFIG_INLINE_SPIN_LOCK is not set -# CONFIG_INLINE_SPIN_LOCK_BH is not set -# CONFIG_INLINE_SPIN_LOCK_IRQ is not set -# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set -CONFIG_INLINE_SPIN_UNLOCK=y -# CONFIG_INLINE_SPIN_UNLOCK_BH is not set -CONFIG_INLINE_SPIN_UNLOCK_IRQ=y -# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set -# CONFIG_INLINE_READ_TRYLOCK is not set -# CONFIG_INLINE_READ_LOCK is not set -# CONFIG_INLINE_READ_LOCK_BH is not set -# CONFIG_INLINE_READ_LOCK_IRQ is not set -# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set -CONFIG_INLINE_READ_UNLOCK=y -# CONFIG_INLINE_READ_UNLOCK_BH is not set -CONFIG_INLINE_READ_UNLOCK_IRQ=y -# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set -# CONFIG_INLINE_WRITE_TRYLOCK is not set -# CONFIG_INLINE_WRITE_LOCK is not set -# CONFIG_INLINE_WRITE_LOCK_BH is not set -# CONFIG_INLINE_WRITE_LOCK_IRQ is not set -# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set -CONFIG_INLINE_WRITE_UNLOCK=y -# CONFIG_INLINE_WRITE_UNLOCK_BH is not set -CONFIG_INLINE_WRITE_UNLOCK_IRQ=y -# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set -# CONFIG_MUTEX_SPIN_ON_OWNER is not set -# CONFIG_FREEZER is not set - -# -# Platform options -# -CONFIG_PLATFORM_GENERIC=y -# CONFIG_SELFMOD is not set # CONFIG_OPT_LIB_FUNCTION is not set - -# -# Definitions for MICROBLAZE0 -# -CONFIG_KERNEL_BASE_ADDR=0x90000000 -CONFIG_XILINX_MICROBLAZE0_FAMILY="virtex5" CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1 CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1 CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1 CONFIG_XILINX_MICROBLAZE0_USE_DIV=1 CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=2 CONFIG_XILINX_MICROBLAZE0_USE_FPU=2 -CONFIG_XILINX_MICROBLAZE0_HW_VER="7.10.d" - -# -# Processor type and features -# -CONFIG_TICK_ONESHOT=y -# CONFIG_NO_HZ is not set CONFIG_HIGH_RES_TIMERS=y -CONFIG_GENERIC_CLOCKEVENTS_BUILD=y -CONFIG_PREEMPT_NONE=y -# CONFIG_PREEMPT_VOLUNTARY is not set -# CONFIG_PREEMPT is not set CONFIG_HZ_100=y -# CONFIG_HZ_250 is not set -# CONFIG_HZ_300 is not set -# CONFIG_HZ_1000 is not set -CONFIG_HZ=100 -CONFIG_SCHED_HRTICK=y -# CONFIG_MMU is not set -CONFIG_NO_MMU=y - -# -# Boot options -# CONFIG_CMDLINE_BOOL=y -CONFIG_CMDLINE="console=ttyUL0,115200" -# CONFIG_CMDLINE_FORCE is not set -CONFIG_OF=y -CONFIG_PROC_DEVICETREE=y - -# -# Advanced setup -# -# CONFIG_ADVANCED_OPTIONS is not set - -# -# Default settings for advanced configuration options are used -# -CONFIG_LOWMEM_SIZE=0x30000000 -CONFIG_KERNEL_START=0x90000000 -CONFIG_TASK_SIZE=0x80000000 -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_PAGEFLAGS_EXTENDED=y -CONFIG_SPLIT_PTLOCK_CPUS=4 -# CONFIG_PHYS_ADDR_T_64BIT is not set -CONFIG_ZONE_DMA_FLAG=0 -CONFIG_VIRT_TO_BUS=y -CONFIG_NOMMU_INITIAL_TRIM_EXCESS=1 - -# -# Exectuable file formats -# CONFIG_BINFMT_FLAT=y -# CONFIG_BINFMT_ZFLAT is not set -# CONFIG_BINFMT_SHARED_FLAT is not set -# CONFIG_HAVE_AOUT is not set -# CONFIG_BINFMT_MISC is not set - -# -# Bus Options -# -# CONFIG_PCI is not set -# CONFIG_PCI_DOMAINS is not set -# CONFIG_PCI_SYSCALL is not set -# CONFIG_ARCH_SUPPORTS_MSI is not set CONFIG_NET=y - -# -# Networking options -# CONFIG_PACKET=y CONFIG_UNIX=y -CONFIG_XFRM=y -# CONFIG_XFRM_USER is not set -# CONFIG_XFRM_SUB_POLICY is not set -# CONFIG_XFRM_MIGRATE is not set -# CONFIG_XFRM_STATISTICS is not set -# CONFIG_NET_KEY is not set CONFIG_INET=y -# CONFIG_IP_MULTICAST is not set -# CONFIG_IP_ADVANCED_ROUTER is not set -CONFIG_IP_FIB_HASH=y -# CONFIG_IP_PNP is not set -# CONFIG_NET_IPIP is not set -# CONFIG_NET_IPGRE is not set -# CONFIG_ARPD is not set -# CONFIG_SYN_COOKIES is not set -# CONFIG_INET_AH is not set -# CONFIG_INET_ESP is not set -# CONFIG_INET_IPCOMP is not set -# CONFIG_INET_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_XFRM_MODE_BEET=y # CONFIG_INET_LRO is not set -CONFIG_INET_DIAG=y -CONFIG_INET_TCP_DIAG=y -# CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_CUBIC=y -CONFIG_DEFAULT_TCP_CONG="cubic" -# CONFIG_TCP_MD5SIG is not set # CONFIG_IPV6 is not set -# CONFIG_NETWORK_SECMARK is not set -# CONFIG_NETFILTER is not set -# CONFIG_IP_DCCP is not set -# CONFIG_IP_SCTP is not set -# CONFIG_RDS is not set -# CONFIG_TIPC is not set -# CONFIG_ATM is not set -# CONFIG_BRIDGE is not set -# CONFIG_NET_DSA 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_ECONET is not set -# CONFIG_WAN_ROUTER is not set -# CONFIG_PHONET is not set -# CONFIG_IEEE802154 is not set -# CONFIG_NET_SCHED is not set -# CONFIG_DCB is not set - -# -# Network testing -# -# CONFIG_NET_PKTGEN is not set -# CONFIG_HAMRADIO is not set -# CONFIG_CAN is not set -# CONFIG_IRDA is not set -# CONFIG_BT is not set -# CONFIG_AF_RXRPC is not set -CONFIG_WIRELESS=y -# CONFIG_CFG80211 is not set -# CONFIG_LIB80211 is not set - -# -# CFG80211 needs to be enabled for MAC80211 -# -# CONFIG_WIMAX is not set -# CONFIG_RFKILL is not set -# CONFIG_NET_9P is not set - -# -# Device Drivers -# - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y # CONFIG_PREVENT_FIRMWARE_BUILD is not set -# CONFIG_DEBUG_DRIVER is not set -# CONFIG_DEBUG_DEVRES is not set -# CONFIG_SYS_HYPERVISOR is not set -# CONFIG_CONNECTOR is not set CONFIG_MTD=y -# CONFIG_MTD_DEBUG is not set -# CONFIG_MTD_TESTS is not set CONFIG_MTD_CONCAT=y CONFIG_MTD_PARTITIONS=y -# CONFIG_MTD_REDBOOT_PARTS is not set CONFIG_MTD_CMDLINE_PARTS=y -# CONFIG_MTD_OF_PARTS is not set -# CONFIG_MTD_AR7_PARTS is not set - -# -# User Modules And Translation Layers -# CONFIG_MTD_CHAR=y -CONFIG_MTD_BLKDEVS=y CONFIG_MTD_BLOCK=y -# CONFIG_FTL is not set -# CONFIG_NFTL is not set -# CONFIG_INFTL is not set -# CONFIG_RFD_FTL is not set -# CONFIG_SSFDC is not set -# CONFIG_MTD_OOPS 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=y CONFIG_MTD_CFI_AMDSTD=y -# CONFIG_MTD_CFI_STAA is not set -CONFIG_MTD_CFI_UTIL=y CONFIG_MTD_RAM=y -# CONFIG_MTD_ROM is not set -# CONFIG_MTD_ABSENT is not set - -# -# Mapping drivers for chip access -# -# CONFIG_MTD_COMPLEX_MAPPINGS is not set -# CONFIG_MTD_PHYSMAP is not set -# CONFIG_MTD_PHYSMAP_OF is not set CONFIG_MTD_UCLINUX=y -# CONFIG_MTD_PLATRAM is not set - -# -# Self-contained MTD device drivers -# -# 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 -# CONFIG_MTD_NAND is not set -# CONFIG_MTD_ONENAND is not set - -# -# LPDDR flash memory drivers -# -# CONFIG_MTD_LPDDR is not set - -# -# UBI - Unsorted block images -# -# CONFIG_MTD_UBI is not set -CONFIG_OF_FLATTREE=y -CONFIG_OF_DEVICE=y -# CONFIG_PARPORT is not set -CONFIG_BLK_DEV=y -# CONFIG_BLK_DEV_COW_COMMON is not set -# CONFIG_BLK_DEV_LOOP is not set - -# -# DRBD disabled because PROC_FS, INET or CONNECTOR not selected -# +CONFIG_PROC_DEVICETREE=y CONFIG_BLK_DEV_NBD=y CONFIG_BLK_DEV_RAM=y -CONFIG_BLK_DEV_RAM_COUNT=16 -CONFIG_BLK_DEV_RAM_SIZE=4096 -# CONFIG_BLK_DEV_XIP is not set -# CONFIG_CDROM_PKTCDVD is not set -# CONFIG_ATA_OVER_ETH is not set -# CONFIG_XILINX_SYSACE is not set -CONFIG_MISC_DEVICES=y -# CONFIG_ENCLOSURE_SERVICES is not set -# CONFIG_C2PORT is not set - -# -# EEPROM support -# -# CONFIG_EEPROM_93CX6 is not set - -# -# SCSI device support -# -CONFIG_SCSI_MOD=y -# CONFIG_RAID_ATTRS is not set -# CONFIG_SCSI is not set -# CONFIG_SCSI_DMA is not set -# CONFIG_SCSI_NETLINK is not set -# CONFIG_ATA is not set -# CONFIG_MD is not set CONFIG_NETDEVICES=y -# CONFIG_DUMMY is not set -# CONFIG_BONDING is not set -# CONFIG_MACVLAN is not set -# CONFIG_EQUALIZER is not set -# CONFIG_TUN is not set -# CONFIG_VETH is not set -# CONFIG_PHYLIB is not set CONFIG_NET_ETHERNET=y -# CONFIG_MII is not set -# CONFIG_ETHOC is not set -# CONFIG_DNET is not set -# CONFIG_IBM_NEW_EMAC_ZMII is not set -# CONFIG_IBM_NEW_EMAC_RGMII is not set -# CONFIG_IBM_NEW_EMAC_TAH is not set -# CONFIG_IBM_NEW_EMAC_EMAC4 is not set -# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set -# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set -# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set -# CONFIG_B44 is not set -# CONFIG_KS8842 is not set -# CONFIG_KS8851_MLL is not set -# CONFIG_XILINX_EMACLITE is not set -CONFIG_NETDEV_1000=y -CONFIG_NETDEV_10000=y -CONFIG_WLAN=y -# CONFIG_HOSTAP is not set - -# -# Enable WiMAX (Networking options) to see the WiMAX drivers -# -# CONFIG_WAN is not set -# CONFIG_PPP is not set -# CONFIG_SLIP is not set -# CONFIG_NETCONSOLE is not set -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set -# CONFIG_ISDN is not set -# CONFIG_PHONE is not set - -# -# Input device support -# # CONFIG_INPUT 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_DEVKMEM=y -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -# CONFIG_SERIAL_8250 is not set - -# -# Non-8250 serial port support -# CONFIG_SERIAL_UARTLITE=y CONFIG_SERIAL_UARTLITE_CONSOLE=y -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -# CONFIG_SERIAL_TIMBERDALE is not set -# CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set -CONFIG_UNIX98_PTYS=y -# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set -CONFIG_LEGACY_PTYS=y -CONFIG_LEGACY_PTY_COUNT=256 -# CONFIG_IPMI_HANDLER is not set CONFIG_HW_RANDOM=y -# CONFIG_HW_RANDOM_TIMERIOMEM is not set -# CONFIG_RTC is not set -# CONFIG_GEN_RTC is not set -# CONFIG_XILINX_HWICAP is not set -# CONFIG_R3964 is not set -# CONFIG_RAW_DRIVER is not set -# CONFIG_TCG_TPM is not set -# CONFIG_I2C is not set -# CONFIG_SPI is not set - -# -# PPS support -# -# CONFIG_PPS is not set -CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y -# CONFIG_GPIOLIB is not set -# CONFIG_W1 is not set -# CONFIG_POWER_SUPPLY is not set # CONFIG_HWMON is not set -# CONFIG_THERMAL is not set -# CONFIG_WATCHDOG is not set -CONFIG_SSB_POSSIBLE=y - -# -# Sonics Silicon Backplane -# -# CONFIG_SSB is not set - -# -# Multifunction device drivers -# -# CONFIG_MFD_CORE is not set -# CONFIG_MFD_SM501 is not set -# CONFIG_HTC_PASIC3 is not set -# CONFIG_MFD_TMIO is not set -# CONFIG_REGULATOR is not set -# CONFIG_MEDIA_SUPPORT is not set - -# -# Graphics support -# -# CONFIG_VGASTATE is not set CONFIG_VIDEO_OUTPUT_CONTROL=y -# CONFIG_FB is not set -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set - -# -# Display device support -# -# CONFIG_DISPLAY_SUPPORT is not set -# CONFIG_SOUND is not set -CONFIG_USB_SUPPORT=y -CONFIG_USB_ARCH_HAS_HCD=y -# CONFIG_USB_ARCH_HAS_OHCI is not set -CONFIG_USB_ARCH_HAS_EHCI=y -# CONFIG_USB is not set -# CONFIG_USB_OTG_WHITELIST is not set -# CONFIG_USB_OTG_BLACKLIST_HUB is not set - -# -# Enable Host or Gadget support to see Inventra options -# - -# -# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may -# -# CONFIG_USB_GADGET is not set - -# -# OTG and related infrastructure -# -# CONFIG_MMC is not set -# CONFIG_MEMSTICK is not set -# CONFIG_NEW_LEDS is not set -# CONFIG_ACCESSIBILITY is not set -# CONFIG_RTC_CLASS is not set -# CONFIG_DMADEVICES is not set -# CONFIG_AUXDISPLAY is not set -# CONFIG_UIO is not set - -# -# TI VLYNQ -# -# CONFIG_STAGING is not set - -# -# File systems -# CONFIG_EXT2_FS=y -# CONFIG_EXT2_FS_XATTR is not set -# CONFIG_EXT3_FS is not set -# CONFIG_EXT4_FS is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -CONFIG_FS_POSIX_ACL=y -# CONFIG_XFS_FS is not set -# CONFIG_GFS2_FS is not set -# CONFIG_OCFS2_FS is not set -# CONFIG_BTRFS_FS is not set -# CONFIG_NILFS2_FS is not set -CONFIG_FILE_LOCKING=y -CONFIG_FSNOTIFY=y # CONFIG_DNOTIFY is not set -# CONFIG_INOTIFY is not set -CONFIG_INOTIFY_USER=y -# CONFIG_QUOTA is not set -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set -# CONFIG_FUSE_FS is not set - -# -# Caches -# -# CONFIG_FSCACHE 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_SYSCTL=y -CONFIG_SYSFS=y -# CONFIG_HUGETLB_PAGE is not set -# CONFIG_CONFIGFS_FS is not set -CONFIG_MISC_FILESYSTEMS=y -# 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_JFFS2_FS is not set -# CONFIG_LOGFS is not set CONFIG_CRAMFS=y -# CONFIG_SQUASHFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_OMFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set CONFIG_ROMFS_FS=y -CONFIG_ROMFS_BACKED_BY_BLOCK=y -# CONFIG_ROMFS_BACKED_BY_MTD is not set -# CONFIG_ROMFS_BACKED_BY_BOTH is not set -CONFIG_ROMFS_ON_BLOCK=y -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set -CONFIG_NETWORK_FILESYSTEMS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y CONFIG_NFS_V3_ACL=y -# CONFIG_NFS_V4 is not set -# CONFIG_NFSD is not set -CONFIG_LOCKD=y -CONFIG_LOCKD_V4=y -CONFIG_NFS_ACL_SUPPORT=y -CONFIG_NFS_COMMON=y -CONFIG_SUNRPC=y -# CONFIG_RPCSEC_GSS_KRB5 is not set -# CONFIG_RPCSEC_GSS_SPKM3 is not set -# CONFIG_SMB_FS is not set -# CONFIG_CEPH_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 - -# -# Partition Types -# -# CONFIG_PARTITION_ADVANCED is not set -CONFIG_MSDOS_PARTITION=y -# CONFIG_NLS is not set -# CONFIG_DLM is not set - -# -# Kernel hacking -# -CONFIG_TRACE_IRQFLAGS_SUPPORT=y -# CONFIG_PRINTK_TIME is not set -CONFIG_ENABLE_WARN_DEPRECATED=y -CONFIG_ENABLE_MUST_CHECK=y -CONFIG_FRAME_WARN=1024 -# CONFIG_MAGIC_SYSRQ is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_UNUSED_SYMBOLS=y CONFIG_DEBUG_FS=y -# CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_SHIRQ=y -CONFIG_DETECT_SOFTLOCKUP=y -CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y -CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1 CONFIG_DETECT_HUNG_TASK=y -# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set -CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0 -CONFIG_SCHED_DEBUG=y CONFIG_SCHEDSTATS=y CONFIG_TIMER_STATS=y CONFIG_DEBUG_OBJECTS=y CONFIG_DEBUG_OBJECTS_SELFTEST=y CONFIG_DEBUG_OBJECTS_FREE=y CONFIG_DEBUG_OBJECTS_TIMERS=y -# CONFIG_DEBUG_OBJECTS_WORK is not set -CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1 -# CONFIG_DEBUG_SLAB is not set -# CONFIG_DEBUG_KMEMLEAK 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_MUTEXES is not set -# CONFIG_DEBUG_LOCK_ALLOC is not set -# CONFIG_PROVE_LOCKING is not set -# CONFIG_LOCK_STAT is not set -# CONFIG_DEBUG_SPINLOCK_SLEEP is not set -# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set -# CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_INFO=y -# CONFIG_DEBUG_VM is not set -# CONFIG_DEBUG_NOMMU_REGIONS is not set -# CONFIG_DEBUG_WRITECOUNT is not set -# CONFIG_DEBUG_MEMORY_INIT is not set CONFIG_DEBUG_LIST=y CONFIG_DEBUG_SG=y -# CONFIG_DEBUG_NOTIFIERS is not set -# CONFIG_DEBUG_CREDENTIALS is not set -# CONFIG_BOOT_PRINTK_DELAY is not set -# CONFIG_RCU_TORTURE_TEST is not set # CONFIG_RCU_CPU_STALL_DETECTOR is not set -# CONFIG_BACKTRACE_SELF_TEST is not set -# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set -# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set -# CONFIG_LKDTM is not set -# CONFIG_FAULT_INJECTION is not set -# CONFIG_LATENCYTOP is not set CONFIG_SYSCTL_SYSCALL_CHECK=y -# CONFIG_PAGE_POISONING is not set -CONFIG_HAVE_FUNCTION_TRACER=y -CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y -CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y -CONFIG_HAVE_DYNAMIC_FTRACE=y -CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y -CONFIG_TRACING_SUPPORT=y -CONFIG_FTRACE=y -# CONFIG_FUNCTION_TRACER is not set -# CONFIG_IRQSOFF_TRACER is not set -# CONFIG_SCHED_TRACER is not set -# CONFIG_ENABLE_DEFAULT_TRACERS is not set -# CONFIG_BOOT_TRACER is not set -CONFIG_BRANCH_PROFILE_NONE=y -# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set -# CONFIG_PROFILE_ALL_BRANCHES is not set -# CONFIG_STACK_TRACER is not set -# CONFIG_KMEMTRACE is not set -# CONFIG_WORKQUEUE_TRACER is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_DYNAMIC_DEBUG is not set -# CONFIG_DMA_API_DEBUG is not set -# CONFIG_SAMPLES is not set CONFIG_EARLY_PRINTK=y -# CONFIG_HEART_BEAT is not set -# CONFIG_DEBUG_BOOTMEM is not set - -# -# Security options -# -# CONFIG_KEYS is not set -# CONFIG_SECURITY is not set -# CONFIG_SECURITYFS is not set -# CONFIG_DEFAULT_SECURITY_SELINUX is not set -# CONFIG_DEFAULT_SECURITY_SMACK is not set -# CONFIG_DEFAULT_SECURITY_TOMOYO is not set -CONFIG_DEFAULT_SECURITY_DAC=y -CONFIG_DEFAULT_SECURITY="" -CONFIG_CRYPTO=y - -# -# Crypto core or helper -# -# CONFIG_CRYPTO_MANAGER is not set -# CONFIG_CRYPTO_MANAGER2 is not set -# CONFIG_CRYPTO_GF128MUL is not set -# CONFIG_CRYPTO_NULL is not set -# CONFIG_CRYPTO_CRYPTD is not set -# CONFIG_CRYPTO_AUTHENC is not set -# CONFIG_CRYPTO_TEST is not set - -# -# Authenticated Encryption with Associated Data -# -# CONFIG_CRYPTO_CCM is not set -# CONFIG_CRYPTO_GCM is not set -# CONFIG_CRYPTO_SEQIV is not set - -# -# Block modes -# -# CONFIG_CRYPTO_CBC is not set -# CONFIG_CRYPTO_CTR is not set -# CONFIG_CRYPTO_CTS is not set -# CONFIG_CRYPTO_ECB is not set -# CONFIG_CRYPTO_LRW is not set -# CONFIG_CRYPTO_PCBC is not set -# CONFIG_CRYPTO_XTS is not set - -# -# Hash modes -# -# CONFIG_CRYPTO_HMAC is not set -# CONFIG_CRYPTO_XCBC is not set -# CONFIG_CRYPTO_VMAC is not set - -# -# Digest -# -# CONFIG_CRYPTO_CRC32C is not set -# CONFIG_CRYPTO_GHASH is not set -# CONFIG_CRYPTO_MD4 is not set -# CONFIG_CRYPTO_MD5 is not set -# CONFIG_CRYPTO_MICHAEL_MIC is not set -# CONFIG_CRYPTO_RMD128 is not set -# CONFIG_CRYPTO_RMD160 is not set -# CONFIG_CRYPTO_RMD256 is not set -# CONFIG_CRYPTO_RMD320 is not set -# CONFIG_CRYPTO_SHA1 is not set -# CONFIG_CRYPTO_SHA256 is not set -# CONFIG_CRYPTO_SHA512 is not set -# CONFIG_CRYPTO_TGR192 is not set -# CONFIG_CRYPTO_WP512 is not set - -# -# Ciphers -# -# CONFIG_CRYPTO_AES is not set -# CONFIG_CRYPTO_ANUBIS is not set -# CONFIG_CRYPTO_ARC4 is not set -# CONFIG_CRYPTO_BLOWFISH is not set -# CONFIG_CRYPTO_CAMELLIA is not set -# CONFIG_CRYPTO_CAST5 is not set -# CONFIG_CRYPTO_CAST6 is not set -# CONFIG_CRYPTO_DES is not set -# CONFIG_CRYPTO_FCRYPT is not set -# CONFIG_CRYPTO_KHAZAD is not set -# CONFIG_CRYPTO_SALSA20 is not set -# CONFIG_CRYPTO_SEED is not set -# CONFIG_CRYPTO_SERPENT is not set -# CONFIG_CRYPTO_TEA is not set -# CONFIG_CRYPTO_TWOFISH is not set - -# -# Compression -# -# CONFIG_CRYPTO_DEFLATE is not set -# CONFIG_CRYPTO_ZLIB is not set -# CONFIG_CRYPTO_LZO is not set - -# -# Random Number Generation -# # CONFIG_CRYPTO_ANSI_CPRNG is not set -CONFIG_CRYPTO_HW=y -# CONFIG_BINARY_PRINTF is not set - -# -# Library routines -# -CONFIG_GENERIC_FIND_LAST_BIT=y -# CONFIG_CRC_CCITT is not set -# CONFIG_CRC16 is not set -# CONFIG_CRC_T10DIF is not set -# CONFIG_CRC_ITU_T is not set # CONFIG_CRC32 is not set -# CONFIG_CRC7 is not set -# CONFIG_LIBCRC32C is not set -CONFIG_ZLIB_INFLATE=y -CONFIG_HAS_IOMEM=y -CONFIG_HAS_IOPORT=y -CONFIG_HAS_DMA=y -CONFIG_HAVE_LMB=y -CONFIG_NLATTR=y diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h index a6edd356cd08..7ebd955460d9 100644 --- a/arch/microblaze/include/asm/cacheflush.h +++ b/arch/microblaze/include/asm/cacheflush.h @@ -17,6 +17,7 @@ /* Somebody depends on this; sigh... */ #include <linux/mm.h> +#include <linux/io.h> /* Look at Documentation/cachetlb.txt */ @@ -60,7 +61,6 @@ void microblaze_cache_init(void); #define invalidate_icache() mbc->iin(); #define invalidate_icache_range(start, end) mbc->iinr(start, end); - #define flush_icache_user_range(vma, pg, adr, len) flush_icache(); #define flush_icache_page(vma, pg) do { } while (0) @@ -72,9 +72,15 @@ void microblaze_cache_init(void); #define flush_dcache() mbc->dfl(); #define flush_dcache_range(start, end) mbc->dflr(start, end); -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 -/* D-cache aliasing problem can't happen - cache is between MMU and ram */ -#define flush_dcache_page(page) do { } while (0) +#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 +/* MS: We have to implement it because of rootfs-jffs2 issue on WB */ +#define flush_dcache_page(page) \ +do { \ + unsigned long addr = (unsigned long) page_address(page); /* virtual */ \ + addr = (u32)virt_to_phys((void *)addr); \ + flush_dcache_range((unsigned) (addr), (unsigned) (addr) + PAGE_SIZE); \ +} while (0); + #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) @@ -97,8 +103,10 @@ void microblaze_cache_init(void); #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ do { \ + u32 addr = virt_to_phys(dst); \ + invalidate_icache_range((unsigned) (addr), (unsigned) (addr) + (len));\ memcpy((dst), (src), (len)); \ - flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \ + flush_dcache_range((unsigned) (addr), (unsigned) (addr) + (len));\ } while (0) #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h index 18b3731c8509..8fbb0ec10233 100644 --- a/arch/microblaze/include/asm/dma-mapping.h +++ b/arch/microblaze/include/asm/dma-mapping.h @@ -79,12 +79,6 @@ static inline int dma_supported(struct device *dev, u64 mask) return ops->dma_supported(dev, mask); } -#ifdef CONFIG_PCI -/* We have our own implementation of pci_set_dma_mask() */ -#define HAVE_ARCH_PCI_SET_DMA_MASK - -#endif - static inline int dma_set_mask(struct device *dev, u64 dma_mask) { struct dma_map_ops *ops = get_dma_ops(dev); @@ -112,7 +106,6 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) -#define dma_is_consistent(d, h) (1) static inline void *dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag) @@ -138,11 +131,6 @@ static inline void dma_free_coherent(struct device *dev, size_t size, ops->free_coherent(dev, size, cpu_addr, dma_handle); } -static inline int dma_get_cache_alignment(void) -{ - return L1_CACHE_BYTES; -} - static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { diff --git a/arch/microblaze/include/asm/elf.h b/arch/microblaze/include/asm/elf.h index 7d4acf2b278e..732caf1be741 100644 --- a/arch/microblaze/include/asm/elf.h +++ b/arch/microblaze/include/asm/elf.h @@ -77,7 +77,7 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; #define ELF_DATA ELFDATA2MSB #endif -#define ELF_EXEC_PAGESIZE 4096 +#define ELF_EXEC_PAGESIZE PAGE_SIZE #define ELF_CORE_COPY_REGS(_dest, _regs) \ diff --git a/arch/microblaze/include/asm/exceptions.h b/arch/microblaze/include/asm/exceptions.h index 4c7b5d037c88..6479097b802b 100644 --- a/arch/microblaze/include/asm/exceptions.h +++ b/arch/microblaze/include/asm/exceptions.h @@ -14,6 +14,11 @@ #define _ASM_MICROBLAZE_EXCEPTIONS_H #ifdef __KERNEL__ + +#ifndef CONFIG_MMU +#define EX_HANDLER_STACK_SIZ (4*19) +#endif + #ifndef __ASSEMBLY__ /* Macros to enable and disable HW exceptions in the MSR */ @@ -64,22 +69,6 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type, void die(const char *str, struct pt_regs *fp, long err); void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr); -#if defined(CONFIG_KGDB) -void (*debugger)(struct pt_regs *regs); -int (*debugger_bpt)(struct pt_regs *regs); -int (*debugger_sstep)(struct pt_regs *regs); -int (*debugger_iabr_match)(struct pt_regs *regs); -int (*debugger_dabr_match)(struct pt_regs *regs); -void (*debugger_fault_handler)(struct pt_regs *regs); -#else -#define debugger(regs) do { } while (0) -#define debugger_bpt(regs) 0 -#define debugger_sstep(regs) 0 -#define debugger_iabr_match(regs) 0 -#define debugger_dabr_match(regs) 0 -#define debugger_fault_handler ((void (*)(struct pt_regs *))0) -#endif - #endif /*__ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* _ASM_MICROBLAZE_EXCEPTIONS_H */ diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h index 31a35c33df63..ec5583d6111c 100644 --- a/arch/microblaze/include/asm/irq.h +++ b/arch/microblaze/include/asm/irq.h @@ -27,17 +27,6 @@ extern unsigned int nr_irq; struct pt_regs; extern void do_IRQ(struct pt_regs *regs); -/** - * irq_of_parse_and_map - Parse and Map an interrupt into linux virq space - * @device: Device node of the device whose interrupt is to be mapped - * @index: Index of the interrupt to map - * - * This function is a wrapper that chains of_irq_map_one() and - * irq_create_of_mapping() to make things easier to callers - */ -struct device_node; -extern unsigned int irq_of_parse_and_map(struct device_node *dev, int index); - /** FIXME - not implement * irq_dispose_mapping - Unmap an interrupt * @virq: linux virq number of the interrupt to unmap @@ -62,17 +51,4 @@ struct irq_host; extern unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq); -/** - * irq_create_of_mapping - Map a hardware interrupt into linux virq space - * @controller: Device node of the interrupt controller - * @inspec: Interrupt specifier from the device-tree - * @intsize: Size of the interrupt specifier from the device-tree - * - * This function is identical to irq_create_mapping except that it takes - * as input informations straight from the device-tree (typically the results - * of the of_irq_map_*() functions. - */ -extern unsigned int irq_create_of_mapping(struct device_node *controller, - u32 *intspec, unsigned int intsize); - #endif /* _ASM_MICROBLAZE_IRQ_H */ diff --git a/arch/microblaze/include/asm/kgdb.h b/arch/microblaze/include/asm/kgdb.h new file mode 100644 index 000000000000..78b17d40b235 --- /dev/null +++ b/arch/microblaze/include/asm/kgdb.h @@ -0,0 +1,28 @@ +#ifdef __KERNEL__ +#ifndef __MICROBLAZE_KGDB_H__ +#define __MICROBLAZE_KGDB_H__ + +#ifndef __ASSEMBLY__ + +#define CACHE_FLUSH_IS_SAFE 1 +#define BUFMAX 2048 + +/* + * 32 32-bit general purpose registers (r0-r31) + * 6 32-bit special registers (pc, msr, ear, esr, fsr, btr) + * 12 32-bit PVR + * 7 32-bit MMU Regs (redr, rpid, rzpr, rtlbx, rtlbsx, rtlblo, rtlbhi) + * ------ + * 57 registers + */ +#define NUMREGBYTES (57 * 4) + +#define BREAK_INSTR_SIZE 4 +static inline void arch_kgdb_breakpoint(void) +{ + __asm__ __volatile__("brki r16, 0x18;"); +} + +#endif /* __ASSEMBLY__ */ +#endif /* __MICROBLAZE_KGDB_H__ */ +#endif /* __KERNEL__ */ diff --git a/arch/microblaze/include/asm/local64.h b/arch/microblaze/include/asm/local64.h new file mode 100644 index 000000000000..36c93b5cc239 --- /dev/null +++ b/arch/microblaze/include/asm/local64.h @@ -0,0 +1 @@ +#include <asm-generic/local64.h> diff --git a/arch/microblaze/include/asm/of_device.h b/arch/microblaze/include/asm/of_device.h deleted file mode 100644 index 73cb98040982..000000000000 --- a/arch/microblaze/include/asm/of_device.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu> - * - * based on PowerPC of_device.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#ifndef _ASM_MICROBLAZE_OF_DEVICE_H -#define _ASM_MICROBLAZE_OF_DEVICE_H -#ifdef __KERNEL__ - -#include <linux/device.h> -#include <linux/of.h> - -/* - * The of_device is a kind of "base class" that is a superset of - * struct device for use by devices attached to an OF node and - * probed using OF properties. - */ -struct of_device { - struct device dev; /* Generic device interface */ - struct pdev_archdata archdata; -}; - -extern ssize_t of_device_get_modalias(struct of_device *ofdev, - char *str, ssize_t len); - -extern struct of_device *of_device_alloc(struct device_node *np, - const char *bus_id, - struct device *parent); - -extern int of_device_uevent(struct device *dev, - struct kobj_uevent_env *env); - -extern void of_device_make_bus_id(struct of_device *dev); - -/* This is just here during the transition */ -#include <linux/of_device.h> - -#endif /* __KERNEL__ */ -#endif /* _ASM_MICROBLAZE_OF_DEVICE_H */ diff --git a/arch/microblaze/include/asm/of_platform.h b/arch/microblaze/include/asm/of_platform.h deleted file mode 100644 index 37491276c6ca..000000000000 --- a/arch/microblaze/include/asm/of_platform.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. - * <benh@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 _ASM_MICROBLAZE_OF_PLATFORM_H -#define _ASM_MICROBLAZE_OF_PLATFORM_H - -/* This is just here during the transition */ -#include <linux/of_platform.h> - -/* - * The list of OF IDs below is used for matching bus types in the - * system whose devices are to be exposed as of_platform_devices. - * - * This is the default list valid for most platforms. This file provides - * functions who can take an explicit list if necessary though - * - * The search is always performed recursively looking for children of - * the provided device_node and recursively if such a children matches - * a bus type in the list - */ - -static const struct of_device_id of_default_bus_ids[] = { - { .type = "soc", }, - { .compatible = "soc", }, - { .type = "plb5", }, - { .type = "plb4", }, - { .type = "opb", }, - { .type = "simple", }, - {}, -}; - -/* Platform devices and busses creation */ -extern struct of_device *of_platform_device_create(struct device_node *np, - const char *bus_id, - struct device *parent); -/* pseudo "matches" value to not do deep probe */ -#define OF_NO_DEEP_PROBE ((struct of_device_id *)-1) - -extern int of_platform_bus_probe(struct device_node *root, - const struct of_device_id *matches, - struct device *parent); - -extern struct of_device *of_find_device_by_phandle(phandle ph); - -extern void of_instantiate_rtc(void); - -#endif /* _ASM_MICROBLAZE_OF_PLATFORM_H */ diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h index 464ff32bee3d..cf377d91da71 100644 --- a/arch/microblaze/include/asm/page.h +++ b/arch/microblaze/include/asm/page.h @@ -23,8 +23,16 @@ #ifdef __KERNEL__ /* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT (12) -#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) +#if defined(CONFIG_MICROBLAZE_32K_PAGES) +#define PAGE_SHIFT 15 +#elif defined(CONFIG_MICROBLAZE_16K_PAGES) +#define PAGE_SHIFT 14 +#elif defined(CONFIG_MICROBLAZE_8K_PAGES) +#define PAGE_SHIFT 13 +#else +#define PAGE_SHIFT 12 +#endif +#define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) #define LOAD_OFFSET ASM_CONST((CONFIG_KERNEL_START-CONFIG_KERNEL_BASE_ADDR)) @@ -32,20 +40,13 @@ #ifndef __ASSEMBLY__ /* MS be sure that SLAB allocates aligned objects */ -#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES +#define ARCH_DMA_MINALIGN L1_CACHE_BYTES #define ARCH_SLAB_MINALIGN L1_CACHE_BYTES #define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1))) #define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1))) -/* align addr on a size boundary - adjust address up/down if needed */ -#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((size)-1))) -#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1))) - -/* align addr on a size boundary - adjust address up if needed */ -#define _ALIGN(addr, size) _ALIGN_UP(addr, size) - #ifndef CONFIG_MMU /* * PAGE_OFFSET -- the first address of the first page of memory. When not diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h index 0c77cda9f5d8..0c68764ab547 100644 --- a/arch/microblaze/include/asm/pci-bridge.h +++ b/arch/microblaze/include/asm/pci-bridge.h @@ -172,13 +172,8 @@ static inline int pci_has_flag(int flag) extern struct list_head hose_list; -extern unsigned long pci_address_to_pio(phys_addr_t address); extern int pcibios_vaddr_is_ioport(void __iomem *address); #else -static inline unsigned long pci_address_to_pio(phys_addr_t address) -{ - return (unsigned long)-1; -} static inline int pcibios_vaddr_is_ioport(void __iomem *address) { return 0; diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h index e7d67a329bd7..101fa098f62a 100644 --- a/arch/microblaze/include/asm/prom.h +++ b/arch/microblaze/include/asm/prom.h @@ -20,9 +20,6 @@ #ifndef __ASSEMBLY__ #include <linux/types.h> -#include <linux/of_fdt.h> -#include <linux/proc_fs.h> -#include <linux/platform_device.h> #include <asm/irq.h> #include <asm/atomic.h> @@ -50,29 +47,10 @@ extern void pci_create_OF_bus_map(void); * OF address retreival & translation */ -/* Translate an OF address block into a CPU physical address - */ -extern u64 of_translate_address(struct device_node *np, const u32 *addr); - -/* Extract an address from a device, returns the region size and - * the address space flags too. The PCI version uses a BAR number - * instead of an absolute index - */ -extern const u32 *of_get_address(struct device_node *dev, int index, - u64 *size, unsigned int *flags); -extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no, - u64 *size, unsigned int *flags); - -/* Get an address as a resource. Note that if your address is - * a PIO address, the conversion will fail if the physical address - * can't be internally converted to an IO token with - * pci_address_to_pio(), that is because it's either called to early - * or it can't be matched to any host bridge IO space - */ -extern int of_address_to_resource(struct device_node *dev, int index, - struct resource *r); -extern int of_pci_address_to_resource(struct device_node *dev, int bar, - struct resource *r); +#ifdef CONFIG_PCI +extern unsigned long pci_address_to_pio(phys_addr_t address); +#define pci_address_to_pio pci_address_to_pio +#endif /* CONFIG_PCI */ /* Parse the ibm,dma-window property of an OF node into the busno, phys and * size parameters. @@ -88,69 +66,6 @@ struct device_node *of_get_cpu_node(int cpu, unsigned int *thread); /* Get the MAC address */ extern const void *of_get_mac_address(struct device_node *np); -/* - * OF interrupt mapping - */ - -/* This structure is returned when an interrupt is mapped. The controller - * field needs to be put() after use - */ - -#define OF_MAX_IRQ_SPEC 4 /* We handle specifiers of at most 4 cells */ - -struct of_irq { - struct device_node *controller; /* Interrupt controller node */ - u32 size; /* Specifier size */ - u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */ -}; - -/** - * of_irq_map_init - Initialize the irq remapper - * @flags: flags defining workarounds to enable - * - * Some machines have bugs in the device-tree which require certain workarounds - * to be applied. Call this before any interrupt mapping attempts to enable - * those workarounds. - */ -#define OF_IMAP_OLDWORLD_MAC 0x00000001 -#define OF_IMAP_NO_PHANDLE 0x00000002 - -extern void of_irq_map_init(unsigned int flags); - -/** - * of_irq_map_raw - Low level interrupt tree parsing - * @parent: the device interrupt parent - * @intspec: interrupt specifier ("interrupts" property of the device) - * @ointsize: size of the passed in interrupt specifier - * @addr: address specifier (start of "reg" property of the device) - * @out_irq: structure of_irq filled by this function - * - * Returns 0 on success and a negative number on error - * - * This function is a low-level interrupt tree walking function. It - * can be used to do a partial walk with synthetized reg and interrupts - * properties, for example when resolving PCI interrupts when no device - * node exist for the parent. - * - */ - -extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec, - u32 ointsize, const u32 *addr, - struct of_irq *out_irq); - -/** - * of_irq_map_one - Resolve an interrupt for a device - * @device: the device whose interrupt is to be resolved - * @index: index of the interrupt to resolve - * @out_irq: structure of_irq filled by this function - * - * This function resolves an interrupt, walking the tree, for a given - * device-tree node. It's the high level pendant to of_irq_map_raw(). - * It also implements the workarounds for OldWolrd Macs. - */ -extern int of_irq_map_one(struct device_node *device, int index, - struct of_irq *out_irq); - /** * of_irq_map_pci - Resolve the interrupt for a PCI device * @pdev: the device whose interrupt is to be resolved @@ -163,20 +78,18 @@ extern int of_irq_map_one(struct device_node *device, int index, * resolving using the OF tree walking. */ struct pci_dev; +struct of_irq; extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq); -extern int of_irq_to_resource(struct device_node *dev, int index, - struct resource *r); - -/** - * of_iomap - Maps the memory mapped IO for a given device_node - * @device: the device whose io range will be mapped - * @index: index of the io range - * - * Returns a pointer to the mapped memory - */ -extern void __iomem *of_iomap(struct device_node *device, int index); - #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ + +/* These includes are put at the bottom because they may contain things + * that are overridden by this file. Ideally they shouldn't be included + * by this file, but there are a bunch of .c files that currently depend + * on it. Eventually they will be cleaned up. */ +#include <linux/of_fdt.h> +#include <linux/of_irq.h> +#include <linux/platform_device.h> + #endif /* _ASM_MICROBLAZE_PROM_H */ diff --git a/arch/microblaze/include/asm/pvr.h b/arch/microblaze/include/asm/pvr.h index e38abc7714b6..9578666e98ba 100644 --- a/arch/microblaze/include/asm/pvr.h +++ b/arch/microblaze/include/asm/pvr.h @@ -16,7 +16,7 @@ #define PVR_MSR_BIT 0x400 struct pvr_s { - unsigned pvr[16]; + unsigned pvr[12]; }; /* The following taken from Xilinx's standalone BSP pvr.h */ diff --git a/arch/microblaze/include/asm/scatterlist.h b/arch/microblaze/include/asm/scatterlist.h index dc4a8900cc80..35d786fe93ae 100644 --- a/arch/microblaze/include/asm/scatterlist.h +++ b/arch/microblaze/include/asm/scatterlist.h @@ -1,3 +1 @@ #include <asm-generic/scatterlist.h> - -#define ISA_DMA_THRESHOLD (~0UL) diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h index 7f31394985e0..782b5c89248e 100644 --- a/arch/microblaze/include/asm/setup.h +++ b/arch/microblaze/include/asm/setup.h @@ -28,8 +28,6 @@ void disable_early_printk(void); void heartbeat(void); void setup_heartbeat(void); -unsigned long long sched_clock(void); - # ifdef CONFIG_MMU extern void mmu_reset(void); extern void early_console_reg_tlb_alloc(unsigned int addr); diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h index 48c4f0335e3f..e6a2284571dc 100644 --- a/arch/microblaze/include/asm/system.h +++ b/arch/microblaze/include/asm/system.h @@ -45,7 +45,6 @@ extern struct task_struct *_switch_to(struct thread_info *prev, #define smp_rmb() rmb() #define smp_wmb() wmb() -void show_trace(struct task_struct *task, unsigned long *stack); void __bad_xchg(volatile void *ptr, int size); static inline unsigned long __xchg(unsigned long x, volatile void *ptr, @@ -101,10 +100,7 @@ extern struct dentry *of_debugfs_root; * MicroBlaze doesn't handle unaligned accesses in hardware. * * Based on this we force the IP header alignment in network drivers. - * We also modify NET_SKB_PAD to be a cacheline in size, thus maintaining - * cacheline alignment of buffers. */ #define NET_IP_ALIGN 2 -#define NET_SKB_PAD L1_CACHE_BYTES #endif /* _ASM_MICROBLAZE_SYSTEM_H */ diff --git a/arch/microblaze/include/asm/topology.h b/arch/microblaze/include/asm/topology.h index 96bcea5a9920..5428f333a02c 100644 --- a/arch/microblaze/include/asm/topology.h +++ b/arch/microblaze/include/asm/topology.h @@ -1,11 +1 @@ #include <asm-generic/topology.h> - -#ifndef _ASM_MICROBLAZE_TOPOLOGY_H -#define _ASM_MICROBLAZE_TOPOLOGY_H - -struct device_node; -static inline int of_node_to_nid(struct device_node *device) -{ - return 0; -} -#endif /* _ASM_MICROBLAZE_TOPOLOGY_H */ diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index 26460d15b338..d840f4a2d3c9 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -359,7 +359,7 @@ extern long __user_bad(void); __copy_tofrom_user((__force void __user *)(to), \ (void __user *)(from), (n)) #define __copy_from_user_inatomic(to, from, n) \ - copy_from_user((to), (from), (n)) + __copy_from_user((to), (from), (n)) static inline long copy_from_user(void *to, const void __user *from, unsigned long n) @@ -373,7 +373,7 @@ static inline long copy_from_user(void *to, #define __copy_to_user(to, from, n) \ __copy_tofrom_user((void __user *)(to), \ (__force const void __user *)(from), (n)) -#define __copy_to_user_inatomic(to, from, n) copy_to_user((to), (from), (n)) +#define __copy_to_user_inatomic(to, from, n) __copy_to_user((to), (from), (n)) static inline long copy_to_user(void __user *to, const void *from, unsigned long n) diff --git a/arch/microblaze/include/asm/unwind.h b/arch/microblaze/include/asm/unwind.h new file mode 100644 index 000000000000..d248b7de4b13 --- /dev/null +++ b/arch/microblaze/include/asm/unwind.h @@ -0,0 +1,29 @@ +/* + * Backtrace support for Microblaze + * + * Copyright (C) 2010 Digital Design Corporation + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#ifndef __MICROBLAZE_UNWIND_H +#define __MICROBLAZE_UNWIND_H + +struct stack_trace; + +struct trap_handler_info { + unsigned long start_addr; + unsigned long end_addr; + const char *trap_name; +}; +extern struct trap_handler_info microblaze_trap_handlers; + +extern const char _hw_exception_handler; +extern const char ex_handler_unhandled; + +void microblaze_unwind(struct task_struct *task, struct stack_trace *trace); + +#endif /* __MICROBLAZE_UNWIND_H */ + diff --git a/arch/microblaze/kernel/Makefile b/arch/microblaze/kernel/Makefile index e51bc1520825..f0cb5c26c81c 100644 --- a/arch/microblaze/kernel/Makefile +++ b/arch/microblaze/kernel/Makefile @@ -15,9 +15,9 @@ endif extra-y := head.o vmlinux.lds obj-y += dma.o exceptions.o \ - hw_exception_handler.o init_task.o intc.o irq.o of_device.o \ - of_platform.o process.o prom.o prom_parse.o ptrace.o \ - setup.o signal.o sys_microblaze.o timer.o traps.o reset.o + hw_exception_handler.o init_task.o intc.o irq.o \ + process.o prom.o prom_parse.o ptrace.o \ + reset.o setup.o signal.o sys_microblaze.o timer.o traps.o unwind.o obj-y += cpu/ @@ -28,5 +28,6 @@ obj-$(CONFIG_MODULES) += microblaze_ksyms.o module.o obj-$(CONFIG_MMU) += misc.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o mcount.o +obj-$(CONFIG_KGDB) += kgdb.o obj-y += entry$(MMU).o diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c index 4216eb1eaa32..7086e3564281 100644 --- a/arch/microblaze/kernel/cpu/mb.c +++ b/arch/microblaze/kernel/cpu/mb.c @@ -126,6 +126,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) cpuinfo.pvr_user1, cpuinfo.pvr_user2); + count += seq_printf(m, "Page size:\t%lu\n", PAGE_SIZE); return 0; } diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S index 8cc18cd2cce6..ca84368570b6 100644 --- a/arch/microblaze/kernel/entry-nommu.S +++ b/arch/microblaze/kernel/entry-nommu.S @@ -588,3 +588,31 @@ sys_rt_sigsuspend_wrapper: #include "syscall_table.S" syscall_table_size=(.-sys_call_table) + +type_SYSCALL: + .ascii "SYSCALL\0" +type_IRQ: + .ascii "IRQ\0" +type_IRQ_PREEMPT: + .ascii "IRQ (PREEMPTED)\0" +type_SYSCALL_PREEMPT: + .ascii " SYSCALL (PREEMPTED)\0" + + /* + * Trap decoding for stack unwinder + * Tuples are (start addr, end addr, string) + * If return address lies on [start addr, end addr], + * unwinder displays 'string' + */ + + .align 4 +.global microblaze_trap_handlers +microblaze_trap_handlers: + /* Exact matches come first */ + .word ret_to_user ; .word ret_to_user ; .word type_SYSCALL + .word ret_from_intr; .word ret_from_intr ; .word type_IRQ + /* Fuzzy matches go here */ + .word ret_from_intr; .word no_intr_resched; .word type_IRQ_PREEMPT + .word work_pending ; .word no_work_pending; .word type_SYSCALL_PREEMPT + /* End of table */ + .word 0 ; .word 0 ; .word 0 diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S index c0ede25c5b99..304882e56459 100644 --- a/arch/microblaze/kernel/entry.S +++ b/arch/microblaze/kernel/entry.S @@ -48,128 +48,107 @@ */ #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR .macro clear_bip - msrclr r11, MSR_BIP - nop + msrclr r0, MSR_BIP .endm .macro set_bip - msrset r11, MSR_BIP - nop + msrset r0, MSR_BIP .endm .macro clear_eip - msrclr r11, MSR_EIP - nop + msrclr r0, MSR_EIP .endm .macro set_ee - msrset r11, MSR_EE - nop + msrset r0, MSR_EE .endm .macro disable_irq - msrclr r11, MSR_IE - nop + msrclr r0, MSR_IE .endm .macro enable_irq - msrset r11, MSR_IE - nop + msrset r0, MSR_IE .endm .macro set_ums - msrset r11, MSR_UMS - nop - msrclr r11, MSR_VMS - nop + msrset r0, MSR_UMS + msrclr r0, MSR_VMS .endm .macro set_vms - msrclr r11, MSR_UMS - nop - msrset r11, MSR_VMS - nop + msrclr r0, MSR_UMS + msrset r0, MSR_VMS + .endm + + .macro clear_ums + msrclr r0, MSR_UMS .endm .macro clear_vms_ums - msrclr r11, MSR_VMS - nop - msrclr r11, MSR_UMS - nop + msrclr r0, MSR_VMS | MSR_UMS .endm #else .macro clear_bip mfs r11, rmsr - nop andi r11, r11, ~MSR_BIP mts rmsr, r11 - nop .endm .macro set_bip mfs r11, rmsr - nop ori r11, r11, MSR_BIP mts rmsr, r11 - nop .endm .macro clear_eip mfs r11, rmsr - nop andi r11, r11, ~MSR_EIP mts rmsr, r11 - nop .endm .macro set_ee mfs r11, rmsr - nop ori r11, r11, MSR_EE mts rmsr, r11 - nop .endm .macro disable_irq mfs r11, rmsr - nop andi r11, r11, ~MSR_IE mts rmsr, r11 - nop .endm .macro enable_irq mfs r11, rmsr - nop ori r11, r11, MSR_IE mts rmsr, r11 - nop .endm .macro set_ums mfs r11, rmsr - nop ori r11, r11, MSR_VMS andni r11, r11, MSR_UMS mts rmsr, r11 - nop .endm .macro set_vms mfs r11, rmsr - nop ori r11, r11, MSR_VMS andni r11, r11, MSR_UMS mts rmsr, r11 - nop + .endm + + .macro clear_ums + mfs r11, rmsr + andni r11, r11, MSR_UMS + mts rmsr,r11 .endm .macro clear_vms_ums mfs r11, rmsr - nop andni r11, r11, (MSR_VMS|MSR_UMS) mts rmsr,r11 - nop .endm #endif @@ -180,18 +159,22 @@ /* turn on virtual protected mode save */ #define VM_ON \ - set_ums; \ + set_ums; \ rted r0, 2f; \ -2: nop; + nop; \ +2: /* turn off virtual protected mode save and user mode save*/ #define VM_OFF \ - clear_vms_ums; \ + clear_vms_ums; \ rted r0, TOPHYS(1f); \ -1: nop; + nop; \ +1: #define SAVE_REGS \ swi r2, r1, PTO+PT_R2; /* Save SDA */ \ + swi r3, r1, PTO+PT_R3; \ + swi r4, r1, PTO+PT_R4; \ swi r5, r1, PTO+PT_R5; \ swi r6, r1, PTO+PT_R6; \ swi r7, r1, PTO+PT_R7; \ @@ -218,14 +201,14 @@ swi r30, r1, PTO+PT_R30; \ swi r31, r1, PTO+PT_R31; /* Save current task reg */ \ mfs r11, rmsr; /* save MSR */ \ - nop; \ swi r11, r1, PTO+PT_MSR; #define RESTORE_REGS \ lwi r11, r1, PTO+PT_MSR; \ mts rmsr , r11; \ - nop; \ lwi r2, r1, PTO+PT_R2; /* restore SDA */ \ + lwi r3, r1, PTO+PT_R3; \ + lwi r4, r1, PTO+PT_R4; \ lwi r5, r1, PTO+PT_R5; \ lwi r6, r1, PTO+PT_R6; \ lwi r7, r1, PTO+PT_R7; \ @@ -252,6 +235,39 @@ lwi r30, r1, PTO+PT_R30; \ lwi r31, r1, PTO+PT_R31; /* Restore cur task reg */ +#define SAVE_STATE \ + swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)); /* save stack */ \ + /* See if already in kernel mode.*/ \ + mfs r1, rmsr; \ + andi r1, r1, MSR_UMS; \ + bnei r1, 1f; \ + /* Kernel-mode state save. */ \ + /* Reload kernel stack-ptr. */ \ + lwi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)); \ + /* FIXME: I can add these two lines to one */ \ + /* tophys(r1,r1); */ \ + /* addik r1, r1, -STATE_SAVE_SIZE; */ \ + addik r1, r1, CONFIG_KERNEL_BASE_ADDR - CONFIG_KERNEL_START - STATE_SAVE_SIZE; \ + SAVE_REGS \ + brid 2f; \ + swi r1, r1, PTO+PT_MODE; \ +1: /* User-mode state save. */ \ + lwi r1, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); /* get saved current */\ + tophys(r1,r1); \ + lwi r1, r1, TS_THREAD_INFO; /* get the thread info */ \ + /* MS these three instructions can be added to one */ \ + /* addik r1, r1, THREAD_SIZE; */ \ + /* tophys(r1,r1); */ \ + /* addik r1, r1, -STATE_SAVE_SIZE; */ \ + addik r1, r1, THREAD_SIZE + CONFIG_KERNEL_BASE_ADDR - CONFIG_KERNEL_START - STATE_SAVE_SIZE; \ + SAVE_REGS \ + lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); \ + swi r11, r1, PTO+PT_R1; /* Store user SP. */ \ + swi r0, r1, PTO + PT_MODE; /* Was in user-mode. */ \ + /* MS: I am clearing UMS even in case when I come from kernel space */ \ + clear_ums; \ +2: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); + .text /* @@ -267,45 +283,23 @@ * are masked. This is nice, means we don't have to CLI before state save */ C_ENTRY(_user_exception): - swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) /* save stack */ addi r14, r14, 4 /* return address is 4 byte after call */ - swi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* Save r11 */ - - lwi r11, r0, TOPHYS(PER_CPU(KM));/* See if already in kernel mode.*/ - beqi r11, 1f; /* Jump ahead if coming from user */ -/* Kernel-mode state save. */ - lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); /* Reload kernel stack-ptr*/ - tophys(r1,r11); - swi r11, r1, (PT_R1-PT_SIZE); /* Save original SP. */ - lwi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* restore r11 */ - - addik r1, r1, -STATE_SAVE_SIZE; /* Make room on the stack. */ - SAVE_REGS - - addi r11, r0, 1; /* Was in kernel-mode. */ - swi r11, r1, PTO+PT_MODE; /* pt_regs -> kernel mode */ - brid 2f; - nop; /* Fill delay slot */ + swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) /* save stack */ -/* User-mode state save. */ -1: - lwi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* restore r11 */ lwi r1, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); /* get saved current */ tophys(r1,r1); lwi r1, r1, TS_THREAD_INFO; /* get stack from task_struct */ -/* calculate kernel stack pointer from task struct 8k */ - addik r1, r1, THREAD_SIZE; - tophys(r1,r1); - - addik r1, r1, -STATE_SAVE_SIZE; /* Make room on the stack. */ + /* MS these three instructions can be added to one */ + /* addik r1, r1, THREAD_SIZE; */ + /* tophys(r1,r1); */ + /* addik r1, r1, -STATE_SAVE_SIZE; */ + addik r1, r1, THREAD_SIZE + CONFIG_KERNEL_BASE_ADDR - CONFIG_KERNEL_START - STATE_SAVE_SIZE; SAVE_REGS - swi r0, r1, PTO+PT_MODE; /* Was in user-mode. */ lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); swi r11, r1, PTO+PT_R1; /* Store user SP. */ - addi r11, r0, 1; - swi r11, r0, TOPHYS(PER_CPU(KM)); /* Now we're in kernel-mode. */ -2: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); + clear_ums; + lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); /* Save away the syscall number. */ swi r12, r1, PTO+PT_R0; tovirt(r1,r1) @@ -316,10 +310,8 @@ C_ENTRY(_user_exception): * register should point to the location where * the called function should return. [note that MAKE_SYS_CALL uses label 1] */ - # Step into virtual mode. - set_vms; - addik r11, r0, 3f - rtid r11, 0 + /* Step into virtual mode */ + rtbd r0, 3f nop 3: lwi r11, CURRENT_TASK, TS_THREAD_INFO /* get thread info */ @@ -363,24 +355,17 @@ C_ENTRY(_user_exception): # Find and jump into the syscall handler. lwi r12, r12, sys_call_table /* where the trap should return need -8 to adjust for rtsd r15, 8 */ - la r15, r0, ret_from_trap-8 + addi r15, r0, ret_from_trap-8 bra r12 /* The syscall number is invalid, return an error. */ 5: + rtsd r15, 8; /* looks like a normal subroutine return */ addi r3, r0, -ENOSYS; - rtsd r15,8; /* looks like a normal subroutine return */ - or r0, r0, r0 - /* Entry point used to return from a syscall/trap */ /* We re-enable BIP bit before state restore */ C_ENTRY(ret_from_trap): - set_bip; /* Ints masked for state restore*/ - lwi r11, r1, PTO+PT_MODE; -/* See if returning to kernel mode, if so, skip resched &c. */ - bnei r11, 2f; - swi r3, r1, PTO + PT_R3 swi r4, r1, PTO + PT_R4 @@ -413,32 +398,19 @@ C_ENTRY(ret_from_trap): andi r11, r11, _TIF_SIGPENDING; beqi r11, 1f; /* Signals to handle, handle them */ - la r5, r1, PTO; /* Arg 1: struct pt_regs *regs */ + addik r5, r1, PTO; /* Arg 1: struct pt_regs *regs */ addi r7, r0, 1; /* Arg 3: int in_syscall */ bralid r15, do_signal; /* Handle any signals */ add r6, r0, r0; /* Arg 2: sigset_t *oldset */ /* Finally, return to user state. */ -1: - lwi r3, r1, PTO + PT_R3; /* restore syscall result */ - lwi r4, r1, PTO + PT_R4; - - swi r0, r0, PER_CPU(KM); /* Now officially in user state. */ +1: set_bip; /* Ints masked for state restore */ swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */ VM_OFF; tophys(r1,r1); RESTORE_REGS; addik r1, r1, STATE_SAVE_SIZE /* Clean up stack space. */ lwi r1, r1, PT_R1 - PT_SIZE;/* Restore user stack pointer. */ - bri 6f; - -/* Return to kernel state. */ -2: VM_OFF; - tophys(r1,r1); - RESTORE_REGS; - addik r1, r1, STATE_SAVE_SIZE /* Clean up stack space. */ - tovirt(r1,r1); -6: TRAP_return: /* Make global symbol for debugging */ rtbd r14, 0; /* Instructions to return from an IRQ */ nop; @@ -450,12 +422,11 @@ TRAP_return: /* Make global symbol for debugging */ C_ENTRY(sys_fork_wrapper): addi r5, r0, SIGCHLD /* Arg 0: flags */ lwi r6, r1, PTO+PT_R1 /* Arg 1: child SP (use parent's) */ - la r7, r1, PTO /* Arg 2: parent context */ + addik r7, r1, PTO /* Arg 2: parent context */ add r8. r0, r0 /* Arg 3: (unused) */ add r9, r0, r0; /* Arg 4: (unused) */ - add r10, r0, r0; /* Arg 5: (unused) */ brid do_fork /* Do real work (tail-call) */ - nop; + add r10, r0, r0; /* Arg 5: (unused) */ /* This the initial entry point for a new child thread, with an appropriate stack in place that makes it look the the child is in the middle of an @@ -466,35 +437,31 @@ C_ENTRY(ret_from_fork): bralid r15, schedule_tail; /* ...which is schedule_tail's arg */ add r3, r5, r0; /* switch_thread returns the prev task */ /* ( in the delay slot ) */ - add r3, r0, r0; /* Child's fork call should return 0. */ brid ret_from_trap; /* Do normal trap return */ - nop; + add r3, r0, r0; /* Child's fork call should return 0. */ C_ENTRY(sys_vfork): brid microblaze_vfork /* Do real work (tail-call) */ - la r5, r1, PTO + addik r5, r1, PTO C_ENTRY(sys_clone): bnei r6, 1f; /* See if child SP arg (arg 1) is 0. */ - lwi r6, r1, PTO+PT_R1; /* If so, use paret's stack ptr */ -1: la r7, r1, PTO; /* Arg 2: parent context */ + lwi r6, r1, PTO + PT_R1; /* If so, use paret's stack ptr */ +1: addik r7, r1, PTO; /* Arg 2: parent context */ add r8, r0, r0; /* Arg 3: (unused) */ add r9, r0, r0; /* Arg 4: (unused) */ - add r10, r0, r0; /* Arg 5: (unused) */ brid do_fork /* Do real work (tail-call) */ - nop; + add r10, r0, r0; /* Arg 5: (unused) */ C_ENTRY(sys_execve): - la r8, r1, PTO; /* add user context as 4th arg */ brid microblaze_execve; /* Do real work (tail-call).*/ - nop; + addik r8, r1, PTO; /* add user context as 4th arg */ C_ENTRY(sys_rt_sigreturn_wrapper): swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */ swi r4, r1, PTO+PT_R4; - la r5, r1, PTO; /* add user context as 1st arg */ brlid r15, sys_rt_sigreturn /* Do real work */ - nop; + addik r5, r1, PTO; /* add user context as 1st arg */ lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */ lwi r4, r1, PTO+PT_R4; bri ret_from_trap /* fall through will not work here due to align */ @@ -503,83 +470,23 @@ C_ENTRY(sys_rt_sigreturn_wrapper): /* * HW EXCEPTION rutine start */ - -#define SAVE_STATE \ - swi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* Save r11 */ \ - set_bip; /*equalize initial state for all possible entries*/\ - clear_eip; \ - enable_irq; \ - set_ee; \ - /* See if already in kernel mode.*/ \ - lwi r11, r0, TOPHYS(PER_CPU(KM)); \ - beqi r11, 1f; /* Jump ahead if coming from user */\ - /* Kernel-mode state save. */ \ - /* Reload kernel stack-ptr. */ \ - lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); \ - tophys(r1,r11); \ - swi r11, r1, (PT_R1-PT_SIZE); /* Save original SP. */ \ - lwi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* restore r11 */\ - addik r1, r1, -STATE_SAVE_SIZE; /* Make room on the stack. */\ - /* store return registers separately because \ - * this macros is use for others exceptions */ \ - swi r3, r1, PTO + PT_R3; \ - swi r4, r1, PTO + PT_R4; \ - SAVE_REGS \ - /* PC, before IRQ/trap - this is one instruction above */ \ - swi r17, r1, PTO+PT_PC; \ - \ - addi r11, r0, 1; /* Was in kernel-mode. */ \ - swi r11, r1, PTO+PT_MODE; \ - brid 2f; \ - nop; /* Fill delay slot */ \ -1: /* User-mode state save. */ \ - lwi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* restore r11 */\ - lwi r1, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); /* get saved current */\ - tophys(r1,r1); \ - lwi r1, r1, TS_THREAD_INFO; /* get the thread info */ \ - addik r1, r1, THREAD_SIZE; /* calculate kernel stack pointer */\ - tophys(r1,r1); \ - \ - addik r1, r1, -STATE_SAVE_SIZE; /* Make room on the stack. */\ - /* store return registers separately because this macros \ - * is use for others exceptions */ \ - swi r3, r1, PTO + PT_R3; \ - swi r4, r1, PTO + PT_R4; \ - SAVE_REGS \ - /* PC, before IRQ/trap - this is one instruction above FIXME*/ \ - swi r17, r1, PTO+PT_PC; \ - \ - swi r0, r1, PTO+PT_MODE; /* Was in user-mode. */ \ - lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); \ - swi r11, r1, PTO+PT_R1; /* Store user SP. */ \ - addi r11, r0, 1; \ - swi r11, r0, TOPHYS(PER_CPU(KM)); /* Now we're in kernel-mode.*/\ -2: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); \ - /* Save away the syscall number. */ \ - swi r0, r1, PTO+PT_R0; \ - tovirt(r1,r1) - C_ENTRY(full_exception_trap): - swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) /* save stack */ /* adjust exception address for privileged instruction * for finding where is it */ addik r17, r17, -4 SAVE_STATE /* Save registers */ + /* PC, before IRQ/trap - this is one instruction above */ + swi r17, r1, PTO+PT_PC; + tovirt(r1,r1) /* FIXME this can be store directly in PT_ESR reg. * I tested it but there is a fault */ /* where the trap should return need -8 to adjust for rtsd r15, 8 */ - la r15, r0, ret_from_exc - 8 - la r5, r1, PTO /* parameter struct pt_regs * regs */ + addik r15, r0, ret_from_exc - 8 mfs r6, resr - nop mfs r7, rfsr; /* save FSR */ - nop mts rfsr, r0; /* Clear sticky fsr */ - nop - la r12, r0, full_exception - set_vms; - rtbd r12, 0; - nop; + rted r0, full_exception + addik r5, r1, PTO /* parameter struct pt_regs * regs */ /* * Unaligned data trap. @@ -592,19 +499,27 @@ C_ENTRY(full_exception_trap): * The assembler routine is in "arch/microblaze/kernel/hw_exception_handler.S" */ C_ENTRY(unaligned_data_trap): - swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) /* save stack */ + /* MS: I have to save r11 value and then restore it because + * set_bit, clear_eip, set_ee use r11 as temp register if MSR + * instructions are not used. We don't need to do if MSR instructions + * are used and they use r0 instead of r11. + * I am using ENTRY_SP which should be primary used only for stack + * pointer saving. */ + swi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); + set_bip; /* equalize initial state for all possible entries */ + clear_eip; + set_ee; + lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); SAVE_STATE /* Save registers.*/ + /* PC, before IRQ/trap - this is one instruction above */ + swi r17, r1, PTO+PT_PC; + tovirt(r1,r1) /* where the trap should return need -8 to adjust for rtsd r15, 8 */ - la r15, r0, ret_from_exc-8 + addik r15, r0, ret_from_exc-8 mfs r3, resr /* ESR */ - nop mfs r4, rear /* EAR */ - nop - la r7, r1, PTO /* parameter struct pt_regs * regs */ - la r12, r0, _unaligned_data_exception - set_vms; - rtbd r12, 0; /* interrupts enabled */ - nop; + rtbd r0, _unaligned_data_exception + addik r7, r1, PTO /* parameter struct pt_regs * regs */ /* * Page fault traps. @@ -625,38 +540,32 @@ C_ENTRY(unaligned_data_trap): */ /* data and intruction trap - which is choose is resolved int fault.c */ C_ENTRY(page_fault_data_trap): - swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) /* save stack */ SAVE_STATE /* Save registers.*/ + /* PC, before IRQ/trap - this is one instruction above */ + swi r17, r1, PTO+PT_PC; + tovirt(r1,r1) /* where the trap should return need -8 to adjust for rtsd r15, 8 */ - la r15, r0, ret_from_exc-8 - la r5, r1, PTO /* parameter struct pt_regs * regs */ + addik r15, r0, ret_from_exc-8 mfs r6, rear /* parameter unsigned long address */ - nop mfs r7, resr /* parameter unsigned long error_code */ - nop - la r12, r0, do_page_fault - set_vms; - rtbd r12, 0; /* interrupts enabled */ - nop; + rted r0, do_page_fault + addik r5, r1, PTO /* parameter struct pt_regs * regs */ C_ENTRY(page_fault_instr_trap): - swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) /* save stack */ SAVE_STATE /* Save registers.*/ + /* PC, before IRQ/trap - this is one instruction above */ + swi r17, r1, PTO+PT_PC; + tovirt(r1,r1) /* where the trap should return need -8 to adjust for rtsd r15, 8 */ - la r15, r0, ret_from_exc-8 - la r5, r1, PTO /* parameter struct pt_regs * regs */ + addik r15, r0, ret_from_exc-8 mfs r6, rear /* parameter unsigned long address */ - nop ori r7, r0, 0 /* parameter unsigned long error_code */ - la r12, r0, do_page_fault - set_vms; - rtbd r12, 0; /* interrupts enabled */ - nop; + rted r0, do_page_fault + addik r5, r1, PTO /* parameter struct pt_regs * regs */ /* Entry point used to return from an exception. */ C_ENTRY(ret_from_exc): - set_bip; /* Ints masked for state restore*/ - lwi r11, r1, PTO+PT_MODE; + lwi r11, r1, PTO + PT_MODE; bnei r11, 2f; /* See if returning to kernel mode, */ /* ... if so, skip resched &c. */ @@ -687,32 +596,27 @@ C_ENTRY(ret_from_exc): * traps), but signal handlers may want to examine or change the * complete register state. Here we save anything not saved by * the normal entry sequence, so that it may be safely restored - * (in a possibly modified form) after do_signal returns. - * store return registers separately because this macros is use - * for others exceptions */ - la r5, r1, PTO; /* Arg 1: struct pt_regs *regs */ + * (in a possibly modified form) after do_signal returns. */ + addik r5, r1, PTO; /* Arg 1: struct pt_regs *regs */ addi r7, r0, 0; /* Arg 3: int in_syscall */ bralid r15, do_signal; /* Handle any signals */ add r6, r0, r0; /* Arg 2: sigset_t *oldset */ /* Finally, return to user state. */ -1: swi r0, r0, PER_CPU(KM); /* Now officially in user state. */ +1: set_bip; /* Ints masked for state restore */ swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */ VM_OFF; tophys(r1,r1); - lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */ - lwi r4, r1, PTO+PT_R4; RESTORE_REGS; addik r1, r1, STATE_SAVE_SIZE /* Clean up stack space. */ lwi r1, r1, PT_R1 - PT_SIZE; /* Restore user stack pointer. */ bri 6f; /* Return to kernel state. */ -2: VM_OFF; +2: set_bip; /* Ints masked for state restore */ + VM_OFF; tophys(r1,r1); - lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */ - lwi r4, r1, PTO+PT_R4; RESTORE_REGS; addik r1, r1, STATE_SAVE_SIZE /* Clean up stack space. */ @@ -736,36 +640,23 @@ C_ENTRY(_interrupt): /* MS: we are in physical address */ /* Save registers, switch to proper stack, convert SP to virtual.*/ swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) - swi r11, r0, TOPHYS(PER_CPU(R11_SAVE)); /* MS: See if already in kernel mode. */ - lwi r11, r0, TOPHYS(PER_CPU(KM)); - beqi r11, 1f; /* MS: Jump ahead if coming from user */ + mfs r1, rmsr + nop + andi r1, r1, MSR_UMS + bnei r1, 1f /* Kernel-mode state save. */ - or r11, r1, r0 - tophys(r1,r11); /* MS: I have in r1 physical address where stack is */ -/* MS: Save original SP - position PT_R1 to next stack frame 4 *1 - 152*/ - swi r11, r1, (PT_R1 - PT_SIZE); -/* MS: restore r11 because of saving in SAVE_REGS */ - lwi r11, r0, TOPHYS(PER_CPU(R11_SAVE)); + lwi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) + tophys(r1,r1); /* MS: I have in r1 physical address where stack is */ /* save registers */ /* MS: Make room on the stack -> activation record */ addik r1, r1, -STATE_SAVE_SIZE; -/* MS: store return registers separately because - * this macros is use for others exceptions */ - swi r3, r1, PTO + PT_R3; - swi r4, r1, PTO + PT_R4; SAVE_REGS - /* MS: store mode */ - addi r11, r0, 1; /* MS: Was in kernel-mode. */ - swi r11, r1, PTO + PT_MODE; /* MS: and save it */ brid 2f; - nop; /* MS: Fill delay slot */ - + swi r1, r1, PTO + PT_MODE; /* 0 - user mode, 1 - kernel mode */ 1: /* User-mode state save. */ -/* MS: restore r11 -> FIXME move before SAVE_REG */ - lwi r11, r0, TOPHYS(PER_CPU(R11_SAVE)); /* MS: get the saved current */ lwi r1, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); tophys(r1,r1); @@ -774,27 +665,18 @@ C_ENTRY(_interrupt): tophys(r1,r1); /* save registers */ addik r1, r1, -STATE_SAVE_SIZE; - swi r3, r1, PTO+PT_R3; - swi r4, r1, PTO+PT_R4; SAVE_REGS /* calculate mode */ swi r0, r1, PTO + PT_MODE; lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); swi r11, r1, PTO+PT_R1; - /* setup kernel mode to KM */ - addi r11, r0, 1; - swi r11, r0, TOPHYS(PER_CPU(KM)); - + clear_ums; 2: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); - swi r0, r1, PTO + PT_R0; tovirt(r1,r1) - la r5, r1, PTO; - set_vms; - la r11, r0, do_IRQ; - la r15, r0, irq_call; -irq_call:rtbd r11, 0; - nop; + addik r15, r0, irq_call; +irq_call:rtbd r0, do_IRQ; + addik r5, r1, PTO; /* MS: we are in virtual mode */ ret_from_irq: @@ -815,7 +697,7 @@ ret_from_irq: beqid r11, no_intr_resched /* Handle a signal return; Pending signals should be in r18. */ addi r7, r0, 0; /* Arg 3: int in_syscall */ - la r5, r1, PTO; /* Arg 1: struct pt_regs *regs */ + addik r5, r1, PTO; /* Arg 1: struct pt_regs *regs */ bralid r15, do_signal; /* Handle any signals */ add r6, r0, r0; /* Arg 2: sigset_t *oldset */ @@ -823,12 +705,9 @@ ret_from_irq: no_intr_resched: /* Disable interrupts, we are now committed to the state restore */ disable_irq - swi r0, r0, PER_CPU(KM); /* MS: Now officially in user state. */ swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); VM_OFF; tophys(r1,r1); - lwi r3, r1, PTO + PT_R3; /* MS: restore saved r3, r4 registers */ - lwi r4, r1, PTO + PT_R4; RESTORE_REGS addik r1, r1, STATE_SAVE_SIZE /* MS: Clean up stack space. */ lwi r1, r1, PT_R1 - PT_SIZE; @@ -857,8 +736,6 @@ restore: #endif VM_OFF /* MS: turn off MMU */ tophys(r1,r1) - lwi r3, r1, PTO + PT_R3; /* MS: restore saved r3, r4 registers */ - lwi r4, r1, PTO + PT_R4; RESTORE_REGS addik r1, r1, STATE_SAVE_SIZE /* MS: Clean up stack space. */ tovirt(r1,r1); @@ -868,86 +745,91 @@ IRQ_return: /* MS: Make global symbol for debugging */ nop /* - * `Debug' trap - * We enter dbtrap in "BIP" (breakpoint) mode. - * So we exit the breakpoint mode with an 'rtbd' and proceed with the - * original dbtrap. - * however, wait to save state first + * Debug trap for KGDB. Enter to _debug_exception by brki r16, 0x18 + * and call handling function with saved pt_regs */ C_ENTRY(_debug_exception): /* BIP bit is set on entry, no interrupts can occur */ swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)) - swi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* Save r11 */ - set_bip; /*equalize initial state for all possible entries*/ - clear_eip; - enable_irq; - lwi r11, r0, TOPHYS(PER_CPU(KM));/* See if already in kernel mode.*/ - beqi r11, 1f; /* Jump ahead if coming from user */ - /* Kernel-mode state save. */ - lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); /* Reload kernel stack-ptr*/ - tophys(r1,r11); - swi r11, r1, (PT_R1-PT_SIZE); /* Save original SP. */ - lwi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* restore r11 */ + mfs r1, rmsr + nop + andi r1, r1, MSR_UMS + bnei r1, 1f +/* MS: Kernel-mode state save - kgdb */ + lwi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)); /* Reload kernel stack-ptr*/ - addik r1, r1, -STATE_SAVE_SIZE; /* Make room on the stack. */ - swi r3, r1, PTO + PT_R3; - swi r4, r1, PTO + PT_R4; + /* BIP bit is set on entry, no interrupts can occur */ + addik r1, r1, CONFIG_KERNEL_BASE_ADDR - CONFIG_KERNEL_START - STATE_SAVE_SIZE; SAVE_REGS; + /* save all regs to pt_reg structure */ + swi r0, r1, PTO+PT_R0; /* R0 must be saved too */ + swi r14, r1, PTO+PT_R14 /* rewrite saved R14 value */ + swi r16, r1, PTO+PT_R16 + swi r16, r1, PTO+PT_PC; /* PC and r16 are the same */ + swi r17, r1, PTO+PT_R17 + /* save special purpose registers to pt_regs */ + mfs r11, rear; + swi r11, r1, PTO+PT_EAR; + mfs r11, resr; + swi r11, r1, PTO+PT_ESR; + mfs r11, rfsr; + swi r11, r1, PTO+PT_FSR; + + /* stack pointer is in physical address at it is decrease + * by STATE_SAVE_SIZE but we need to get correct R1 value */ + addik r11, r1, CONFIG_KERNEL_START - CONFIG_KERNEL_BASE_ADDR + STATE_SAVE_SIZE; + swi r11, r1, PTO+PT_R1 + /* MS: r31 - current pointer isn't changed */ + tovirt(r1,r1) +#ifdef CONFIG_KGDB + addi r5, r1, PTO /* pass pt_reg address as the first arg */ + la r15, r0, dbtrap_call; /* return address */ + rtbd r0, microblaze_kgdb_break + nop; +#endif + /* MS: Place handler for brki from kernel space if KGDB is OFF. + * It is very unlikely that another brki instruction is called. */ + bri 0 - addi r11, r0, 1; /* Was in kernel-mode. */ - swi r11, r1, PTO + PT_MODE; - brid 2f; - nop; /* Fill delay slot */ -1: /* User-mode state save. */ - lwi r11, r0, TOPHYS(r0_ram + PTO + PT_R11); /* restore r11 */ - lwi r1, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); /* get saved current */ +/* MS: User-mode state save - gdb */ +1: lwi r1, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); /* get saved current */ tophys(r1,r1); lwi r1, r1, TS_THREAD_INFO; /* get the thread info */ addik r1, r1, THREAD_SIZE; /* calculate kernel stack pointer */ tophys(r1,r1); addik r1, r1, -STATE_SAVE_SIZE; /* Make room on the stack. */ - swi r3, r1, PTO + PT_R3; - swi r4, r1, PTO + PT_R4; SAVE_REGS; - - swi r0, r1, PTO+PT_MODE; /* Was in user-mode. */ + swi r17, r1, PTO+PT_R17; + swi r16, r1, PTO+PT_R16; + swi r16, r1, PTO+PT_PC; /* Save LP */ + swi r0, r1, PTO + PT_MODE; /* Was in user-mode. */ lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP)); swi r11, r1, PTO+PT_R1; /* Store user SP. */ - addi r11, r0, 1; - swi r11, r0, TOPHYS(PER_CPU(KM)); /* Now we're in kernel-mode. */ -2: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); - /* Save away the syscall number. */ - swi r0, r1, PTO+PT_R0; + lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE)); tovirt(r1,r1) - - addi r5, r0, SIGTRAP /* send the trap signal */ - add r6, r0, CURRENT_TASK; /* Get current task ptr into r11 */ - addk r7, r0, r0 /* 3rd param zero */ - set_vms; - la r11, r0, send_sig; - la r15, r0, dbtrap_call; -dbtrap_call: rtbd r11, 0; - nop; + addik r5, r1, PTO; + addik r15, r0, dbtrap_call; +dbtrap_call: /* Return point for kernel/user entry + 8 because of rtsd r15, 8 */ + rtbd r0, sw_exception + nop - set_bip; /* Ints masked for state restore*/ - lwi r11, r1, PTO+PT_MODE; + /* MS: The first instruction for the second part of the gdb/kgdb */ + set_bip; /* Ints masked for state restore */ + lwi r11, r1, PTO + PT_MODE; bnei r11, 2f; - +/* MS: Return to user space - gdb */ /* Get current task ptr into r11 */ lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* get thread info */ lwi r11, r11, TI_FLAGS; /* get flags in thread info */ andi r11, r11, _TIF_NEED_RESCHED; beqi r11, 5f; -/* Call the scheduler before returning from a syscall/trap. */ - + /* Call the scheduler before returning from a syscall/trap. */ bralid r15, schedule; /* Call scheduler */ nop; /* delay slot */ - /* XXX Is PT_DTRACE handling needed here? */ - /* XXX m68knommu also checks TASK_STATE & TASK_COUNTER here. */ /* Maybe handle a signal */ 5: lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* get thread info */ @@ -955,54 +837,40 @@ dbtrap_call: rtbd r11, 0; andi r11, r11, _TIF_SIGPENDING; beqi r11, 1f; /* Signals to handle, handle them */ -/* Handle a signal return; Pending signals should be in r18. */ - /* Not all registers are saved by the normal trap/interrupt entry - points (for instance, call-saved registers (because the normal - C-compiler calling sequence in the kernel makes sure they're - preserved), and call-clobbered registers in the case of - traps), but signal handlers may want to examine or change the - complete register state. Here we save anything not saved by - the normal entry sequence, so that it may be safely restored - (in a possibly modified form) after do_signal returns. */ - - la r5, r1, PTO; /* Arg 1: struct pt_regs *regs */ + addik r5, r1, PTO; /* Arg 1: struct pt_regs *regs */ addi r7, r0, 0; /* Arg 3: int in_syscall */ bralid r15, do_signal; /* Handle any signals */ add r6, r0, r0; /* Arg 2: sigset_t *oldset */ - /* Finally, return to user state. */ -1: swi r0, r0, PER_CPU(KM); /* Now officially in user state. */ - swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */ +1: swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */ VM_OFF; tophys(r1,r1); - - lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */ - lwi r4, r1, PTO+PT_R4; + /* MS: Restore all regs */ RESTORE_REGS - addik r1, r1, STATE_SAVE_SIZE /* Clean up stack space. */ - - - lwi r1, r1, PT_R1 - PT_SIZE; - /* Restore user stack pointer. */ - bri 6f; + lwi r17, r1, PTO+PT_R17; + lwi r16, r1, PTO+PT_R16; + addik r1, r1, STATE_SAVE_SIZE /* Clean up stack space */ + lwi r1, r1, PT_R1 - PT_SIZE; /* Restore user stack pointer */ +DBTRAP_return_user: /* MS: Make global symbol for debugging */ + rtbd r16, 0; /* MS: Instructions to return from a debug trap */ + nop; -/* Return to kernel state. */ +/* MS: Return to kernel state - kgdb */ 2: VM_OFF; tophys(r1,r1); - lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */ - lwi r4, r1, PTO+PT_R4; + /* MS: Restore all regs */ RESTORE_REGS - addik r1, r1, STATE_SAVE_SIZE /* Clean up stack space. */ - + lwi r14, r1, PTO+PT_R14; + lwi r16, r1, PTO+PT_PC; + lwi r17, r1, PTO+PT_R17; + addik r1, r1, STATE_SAVE_SIZE; /* MS: Clean up stack space */ tovirt(r1,r1); -6: -DBTRAP_return: /* Make global symbol for debugging */ - rtbd r14, 0; /* Instructions to return from an IRQ */ +DBTRAP_return_kernel: /* MS: Make global symbol for debugging */ + rtbd r16, 0; /* MS: Instructions to return from a debug trap */ nop; - ENTRY(_switch_to) /* prepare return value */ addk r3, r0, CURRENT_TASK @@ -1037,16 +905,12 @@ ENTRY(_switch_to) swi r30, r11, CC_R30 /* special purpose registers */ mfs r12, rmsr - nop swi r12, r11, CC_MSR mfs r12, rear - nop swi r12, r11, CC_EAR mfs r12, resr - nop swi r12, r11, CC_ESR mfs r12, rfsr - nop swi r12, r11, CC_FSR /* update r31, the current-give me pointer to task which will be next */ @@ -1085,10 +949,8 @@ ENTRY(_switch_to) /* special purpose registers */ lwi r12, r11, CC_FSR mts rfsr, r12 - nop lwi r12, r11, CC_MSR mts rmsr, r12 - nop rtsd r15, 8 nop @@ -1096,15 +958,6 @@ ENTRY(_switch_to) ENTRY(_reset) brai 0x70; /* Jump back to FS-boot */ -ENTRY(_break) - mfs r5, rmsr - nop - swi r5, r0, 0x250 + TOPHYS(r0_ram) - mfs r5, resr - nop - swi r5, r0, 0x254 + TOPHYS(r0_ram) - bri 0 - /* These are compiled and loaded into high memory, then * copied into place in mach_early_setup */ .section .init.ivt, "ax" @@ -1116,14 +969,38 @@ ENTRY(_break) nop brai TOPHYS(_user_exception); /* syscall handler */ brai TOPHYS(_interrupt); /* Interrupt handler */ - brai TOPHYS(_break); /* nmi trap handler */ + brai TOPHYS(_debug_exception); /* debug trap handler */ brai TOPHYS(_hw_exception_handler); /* HW exception handler */ - .org 0x60 - brai TOPHYS(_debug_exception); /* debug trap handler*/ - .section .rodata,"a" #include "syscall_table.S" syscall_table_size=(.-sys_call_table) +type_SYSCALL: + .ascii "SYSCALL\0" +type_IRQ: + .ascii "IRQ\0" +type_IRQ_PREEMPT: + .ascii "IRQ (PREEMPTED)\0" +type_SYSCALL_PREEMPT: + .ascii " SYSCALL (PREEMPTED)\0" + + /* + * Trap decoding for stack unwinder + * Tuples are (start addr, end addr, string) + * If return address lies on [start addr, end addr], + * unwinder displays 'string' + */ + + .align 4 +.global microblaze_trap_handlers +microblaze_trap_handlers: + /* Exact matches come first */ + .word ret_from_trap; .word ret_from_trap ; .word type_SYSCALL + .word ret_from_irq ; .word ret_from_irq ; .word type_IRQ + /* Fuzzy matches go here */ + .word ret_from_irq ; .word no_intr_resched ; .word type_IRQ_PREEMPT + .word ret_from_trap; .word TRAP_return ; .word type_SYSCALL_PREEMPT + /* End of table */ + .word 0 ; .word 0 ; .word 0 diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c index 02cbdfe5aa8d..b98ee8d0c1cd 100644 --- a/arch/microblaze/kernel/exceptions.c +++ b/arch/microblaze/kernel/exceptions.c @@ -48,12 +48,17 @@ void die(const char *str, struct pt_regs *fp, long err) do_exit(err); } +/* for user application debugging */ +void sw_exception(struct pt_regs *regs) +{ + _exception(SIGTRAP, regs, TRAP_BRKPT, regs->r16); +} + void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr) { siginfo_t info; if (kernel_mode(regs)) { - debugger(regs); die("Exception in kernel mode", regs, signr); } info.si_signo = signr; @@ -143,7 +148,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type, #ifdef CONFIG_MMU case MICROBLAZE_PRIVILEGED_EXCEPTION: pr_debug(KERN_WARNING "Privileged exception\n"); - /* "brk r0,r0" - used as debug breakpoint */ + /* "brk r0,r0" - used as debug breakpoint - old toolchain */ if (get_user(code, (unsigned long *)regs->pc) == 0 && code == 0x980c0000) { _exception(SIGTRAP, regs, TRAP_BRKPT, addr); diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S index 1bf739888260..42434008209e 100644 --- a/arch/microblaze/kernel/head.S +++ b/arch/microblaze/kernel/head.S @@ -43,10 +43,10 @@ .global empty_zero_page .align 12 empty_zero_page: - .space 4096 + .space PAGE_SIZE .global swapper_pg_dir swapper_pg_dir: - .space 4096 + .space PAGE_SIZE #endif /* CONFIG_MMU */ diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S index 995a2123635b..781195438ee6 100644 --- a/arch/microblaze/kernel/hw_exception_handler.S +++ b/arch/microblaze/kernel/hw_exception_handler.S @@ -78,9 +78,6 @@ #include <asm/asm-offsets.h> /* Helpful Macros */ -#ifndef CONFIG_MMU -#define EX_HANDLER_STACK_SIZ (4*19) -#endif #define NUM_TO_REG(num) r ## num #ifdef CONFIG_MMU @@ -988,6 +985,7 @@ ex_unaligned_fixup: .end _unaligned_data_exception #endif /* CONFIG_MMU */ +.global ex_handler_unhandled ex_handler_unhandled: /* FIXME add handle function for unhandled exception - dump register */ bri 0 diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c index 8f120aca123d..a9345fb4906a 100644 --- a/arch/microblaze/kernel/irq.c +++ b/arch/microblaze/kernel/irq.c @@ -17,26 +17,17 @@ #include <linux/seq_file.h> #include <linux/kernel_stat.h> #include <linux/irq.h> +#include <linux/of_irq.h> #include <asm/prom.h> -unsigned int irq_of_parse_and_map(struct device_node *dev, int index) -{ - struct of_irq oirq; - - if (of_irq_map_one(dev, index, &oirq)) - return NO_IRQ; - - return oirq.specifier[0]; -} -EXPORT_SYMBOL_GPL(irq_of_parse_and_map); - static u32 concurrent_irq; void __irq_entry do_IRQ(struct pt_regs *regs) { unsigned int irq; struct pt_regs *old_regs = set_irq_regs(regs); + trace_hardirqs_off(); irq_enter(); irq = get_irq(regs); @@ -53,6 +44,7 @@ next_irq: irq_exit(); set_irq_regs(old_regs); + trace_hardirqs_on(); } int show_interrupts(struct seq_file *p, void *v) @@ -104,7 +96,7 @@ unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq) EXPORT_SYMBOL_GPL(irq_create_mapping); unsigned int irq_create_of_mapping(struct device_node *controller, - u32 *intspec, unsigned int intsize) + const u32 *intspec, unsigned int intsize) { return intspec[0]; } diff --git a/arch/microblaze/kernel/kgdb.c b/arch/microblaze/kernel/kgdb.c new file mode 100644 index 000000000000..bfc006b7f2d8 --- /dev/null +++ b/arch/microblaze/kernel/kgdb.c @@ -0,0 +1,147 @@ +/* + * Microblaze KGDB support + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#include <linux/kgdb.h> +#include <linux/kdebug.h> +#include <linux/irq.h> +#include <linux/io.h> +#include <asm/cacheflush.h> +#include <asm/asm-offsets.h> +#include <asm/pvr.h> + +#define GDB_REG 0 +#define GDB_PC 32 +#define GDB_MSR 33 +#define GDB_EAR 34 +#define GDB_ESR 35 +#define GDB_FSR 36 +#define GDB_BTR 37 +#define GDB_PVR 38 +#define GDB_REDR 50 +#define GDB_RPID 51 +#define GDB_RZPR 52 +#define GDB_RTLBX 53 +#define GDB_RTLBSX 54 /* mfs can't read it */ +#define GDB_RTLBLO 55 +#define GDB_RTLBHI 56 + +/* keep pvr separately because it is unchangeble */ +struct pvr_s pvr; + +void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) +{ + int i; + unsigned long *pt_regb = (unsigned long *)regs; + int temp; + /* registers r0 - r31, pc, msr, ear, esr, fsr + do not save pt_mode */ + for (i = 0; i < (sizeof(struct pt_regs) / 4) - 1; i++) + gdb_regs[i] = pt_regb[i]; + + /* Branch target register can't be changed */ + __asm__ __volatile__ ("mfs %0, rbtr;" : "=r"(temp) : ); + gdb_regs[GDB_BTR] = temp; + + /* pvr part - we have 11 pvr regs */ + for (i = 0; i < sizeof(struct pvr_s)/4; i++) + gdb_regs[GDB_PVR + i] = pvr.pvr[i]; + + /* read special registers - can't be changed */ + __asm__ __volatile__ ("mfs %0, redr;" : "=r"(temp) : ); + gdb_regs[GDB_REDR] = temp; + __asm__ __volatile__ ("mfs %0, rpid;" : "=r"(temp) : ); + gdb_regs[GDB_RPID] = temp; + __asm__ __volatile__ ("mfs %0, rzpr;" : "=r"(temp) : ); + gdb_regs[GDB_RZPR] = temp; + __asm__ __volatile__ ("mfs %0, rtlbx;" : "=r"(temp) : ); + gdb_regs[GDB_RTLBX] = temp; + __asm__ __volatile__ ("mfs %0, rtlblo;" : "=r"(temp) : ); + gdb_regs[GDB_RTLBLO] = temp; + __asm__ __volatile__ ("mfs %0, rtlbhi;" : "=r"(temp) : ); + gdb_regs[GDB_RTLBHI] = temp; +} + +void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs) +{ + int i; + unsigned long *pt_regb = (unsigned long *)regs; + + /* pt_regs and gdb_regs have the same 37 values. + * The rest of gdb_regs are unused and can't be changed. + * r0 register value can't be changed too. */ + for (i = 1; i < (sizeof(struct pt_regs) / 4) - 1; i++) + pt_regb[i] = gdb_regs[i]; +} + +void microblaze_kgdb_break(struct pt_regs *regs) +{ + if (kgdb_handle_exception(1, SIGTRAP, 0, regs) != 0) + return 0; + + /* Jump over the first arch_kgdb_breakpoint which is barrier to + * get kgdb work. The same solution is used for powerpc */ + if (*(u32 *) (regs->pc) == *(u32 *) (&arch_kgdb_ops.gdb_bpt_instr)) + regs->pc += BREAK_INSTR_SIZE; +} + +/* untested */ +void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) +{ + int i; + unsigned long *pt_regb = (unsigned long *)(p->thread.regs); + + /* registers r0 - r31, pc, msr, ear, esr, fsr + do not save pt_mode */ + for (i = 0; i < (sizeof(struct pt_regs) / 4) - 1; i++) + gdb_regs[i] = pt_regb[i]; + + /* pvr part - we have 11 pvr regs */ + for (i = 0; i < sizeof(struct pvr_s)/4; i++) + gdb_regs[GDB_PVR + i] = pvr.pvr[i]; +} + +void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip) +{ + regs->pc = ip; +} + +int kgdb_arch_handle_exception(int vector, int signo, int err_code, + char *remcom_in_buffer, char *remcom_out_buffer, + struct pt_regs *regs) +{ + char *ptr; + unsigned long address; + int cpu = smp_processor_id(); + + switch (remcom_in_buffer[0]) { + case 'c': + /* handle the optional parameter */ + ptr = &remcom_in_buffer[1]; + if (kgdb_hex2long(&ptr, &address)) + regs->pc = address; + + return 0; + } + return -1; /* this means that we do not want to exit from the handler */ +} + +int kgdb_arch_init(void) +{ + get_pvr(&pvr); /* Fill PVR structure */ + return 0; +} + +void kgdb_arch_exit(void) +{ + /* Nothing to do */ +} + +/* + * Global data + */ +struct kgdb_arch arch_kgdb_ops = { + .gdb_bpt_instr = {0xba, 0x0c, 0x00, 0x18}, /* brki r16, 0x18 */ +}; diff --git a/arch/microblaze/kernel/misc.S b/arch/microblaze/kernel/misc.S index 0fb5fc6c1fc2..206da3da361f 100644 --- a/arch/microblaze/kernel/misc.S +++ b/arch/microblaze/kernel/misc.S @@ -76,7 +76,7 @@ early_console_reg_tlb_alloc: * the UARTs nice and early. We use a 4k real==virtual mapping. */ ori r4, r0, MICROBLAZE_TLB_SIZE - 1 - mts rtlbx, r4 /* TLB slot 2 */ + mts rtlbx, r4 /* TLB slot 63 */ or r4,r5,r0 andi r4,r4,0xfffff000 diff --git a/arch/microblaze/kernel/of_device.c b/arch/microblaze/kernel/of_device.c deleted file mode 100644 index b372787886ed..000000000000 --- a/arch/microblaze/kernel/of_device.c +++ /dev/null @@ -1,112 +0,0 @@ -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/of.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/slab.h> -#include <linux/of_device.h> - -#include <linux/errno.h> - -void of_device_make_bus_id(struct of_device *dev) -{ - static atomic_t bus_no_reg_magic; - struct device_node *node = dev->dev.of_node; - const u32 *reg; - u64 addr; - int magic; - - /* - * For MMIO, get the physical address - */ - reg = of_get_property(node, "reg", NULL); - if (reg) { - addr = of_translate_address(node, reg); - if (addr != OF_BAD_ADDR) { - dev_set_name(&dev->dev, "%llx.%s", - (unsigned long long)addr, node->name); - return; - } - } - - /* - * No BusID, use the node name and add a globally incremented - * counter (and pray...) - */ - magic = atomic_add_return(1, &bus_no_reg_magic); - dev_set_name(&dev->dev, "%s.%d", node->name, magic - 1); -} -EXPORT_SYMBOL(of_device_make_bus_id); - -struct of_device *of_device_alloc(struct device_node *np, - const char *bus_id, - struct device *parent) -{ - struct of_device *dev; - - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) - return NULL; - - dev->dev.of_node = of_node_get(np); - dev->dev.dma_mask = &dev->archdata.dma_mask; - dev->dev.parent = parent; - dev->dev.release = of_release_dev; - - if (bus_id) - dev_set_name(&dev->dev, bus_id); - else - of_device_make_bus_id(dev); - - return dev; -} -EXPORT_SYMBOL(of_device_alloc); - -int of_device_uevent(struct device *dev, struct kobj_uevent_env *env) -{ - struct of_device *ofdev; - const char *compat; - int seen = 0, cplen, sl; - - if (!dev) - return -ENODEV; - - ofdev = to_of_device(dev); - - if (add_uevent_var(env, "OF_NAME=%s", ofdev->dev.of_node->name)) - return -ENOMEM; - - if (add_uevent_var(env, "OF_TYPE=%s", ofdev->dev.of_node->type)) - return -ENOMEM; - - /* Since the compatible field can contain pretty much anything - * it's not really legal to split it out with commas. We split it - * up using a number of environment variables instead. */ - - compat = of_get_property(ofdev->dev.of_node, "compatible", &cplen); - while (compat && *compat && cplen > 0) { - if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat)) - return -ENOMEM; - - sl = strlen(compat) + 1; - compat += sl; - cplen -= sl; - seen++; - } - - if (add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen)) - return -ENOMEM; - - /* modalias is trickier, we add it in 2 steps */ - if (add_uevent_var(env, "MODALIAS=")) - return -ENOMEM; - sl = of_device_get_modalias(ofdev, &env->buf[env->buflen-1], - sizeof(env->buf) - env->buflen); - if (sl >= (sizeof(env->buf) - env->buflen)) - return -ENOMEM; - env->buflen += sl; - - return 0; -} -EXPORT_SYMBOL(of_device_uevent); diff --git a/arch/microblaze/kernel/of_platform.c b/arch/microblaze/kernel/of_platform.c deleted file mode 100644 index ccf6f4257f4b..000000000000 --- a/arch/microblaze/kernel/of_platform.c +++ /dev/null @@ -1,200 +0,0 @@ -/* - * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. - * <benh@kernel.crashing.org> - * and Arnd Bergmann, IBM Corp. - * - * 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. - * - */ - -#undef DEBUG - -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/pci.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/of_platform.h> - -#include <linux/errno.h> -#include <linux/topology.h> -#include <asm/atomic.h> - -struct bus_type of_platform_bus_type = { - .uevent = of_device_uevent, -}; -EXPORT_SYMBOL(of_platform_bus_type); - -static int __init of_bus_driver_init(void) -{ - return of_bus_type_init(&of_platform_bus_type, "of_platform"); -} -postcore_initcall(of_bus_driver_init); - -struct of_device *of_platform_device_create(struct device_node *np, - const char *bus_id, - struct device *parent) -{ - struct of_device *dev; - - dev = of_device_alloc(np, bus_id, parent); - if (!dev) - return NULL; - - dev->archdata.dma_mask = 0xffffffffUL; - dev->dev.bus = &of_platform_bus_type; - - /* We do not fill the DMA ops for platform devices by default. - * This is currently the responsibility of the platform code - * to do such, possibly using a device notifier - */ - - if (of_device_register(dev) != 0) { - of_device_free(dev); - return NULL; - } - - return dev; -} -EXPORT_SYMBOL(of_platform_device_create); - -/** - * of_platform_bus_create - Create an OF device for a bus node and all its - * children. Optionally recursively instanciate matching busses. - * @bus: device node of the bus to instanciate - * @matches: match table, NULL to use the default, OF_NO_DEEP_PROBE to - * disallow recursive creation of child busses - */ -static int of_platform_bus_create(const struct device_node *bus, - const struct of_device_id *matches, - struct device *parent) -{ - struct device_node *child; - struct of_device *dev; - int rc = 0; - - for_each_child_of_node(bus, child) { - pr_debug(" create child: %s\n", child->full_name); - dev = of_platform_device_create(child, NULL, parent); - if (dev == NULL) - rc = -ENOMEM; - else if (!of_match_node(matches, child)) - continue; - if (rc == 0) { - pr_debug(" and sub busses\n"); - rc = of_platform_bus_create(child, matches, &dev->dev); - } - if (rc) { - of_node_put(child); - break; - } - } - return rc; -} - - -/** - * of_platform_bus_probe - Probe the device-tree for platform busses - * @root: parent of the first level to probe or NULL for the root of the tree - * @matches: match table, NULL to use the default - * @parent: parent to hook devices from, NULL for toplevel - * - * Note that children of the provided root are not instanciated as devices - * unless the specified root itself matches the bus list and is not NULL. - */ - -int of_platform_bus_probe(struct device_node *root, - const struct of_device_id *matches, - struct device *parent) -{ - struct device_node *child; - struct of_device *dev; - int rc = 0; - - if (matches == NULL) - matches = of_default_bus_ids; - if (matches == OF_NO_DEEP_PROBE) - return -EINVAL; - if (root == NULL) - root = of_find_node_by_path("/"); - else - of_node_get(root); - - pr_debug("of_platform_bus_probe()\n"); - pr_debug(" starting at: %s\n", root->full_name); - - /* Do a self check of bus type, if there's a match, create - * children - */ - if (of_match_node(matches, root)) { - pr_debug(" root match, create all sub devices\n"); - dev = of_platform_device_create(root, NULL, parent); - if (dev == NULL) { - rc = -ENOMEM; - goto bail; - } - pr_debug(" create all sub busses\n"); - rc = of_platform_bus_create(root, matches, &dev->dev); - goto bail; - } - for_each_child_of_node(root, child) { - if (!of_match_node(matches, child)) - continue; - - pr_debug(" match: %s\n", child->full_name); - dev = of_platform_device_create(child, NULL, parent); - if (dev == NULL) - rc = -ENOMEM; - else - rc = of_platform_bus_create(child, matches, &dev->dev); - if (rc) { - of_node_put(child); - break; - } - } - bail: - of_node_put(root); - return rc; -} -EXPORT_SYMBOL(of_platform_bus_probe); - -static int of_dev_node_match(struct device *dev, void *data) -{ - return to_of_device(dev)->dev.of_node == data; -} - -struct of_device *of_find_device_by_node(struct device_node *np) -{ - struct device *dev; - - dev = bus_find_device(&of_platform_bus_type, - NULL, np, of_dev_node_match); - if (dev) - return to_of_device(dev); - return NULL; -} -EXPORT_SYMBOL(of_find_device_by_node); - -static int of_dev_phandle_match(struct device *dev, void *data) -{ - phandle *ph = data; - return to_of_device(dev)->dev.of_node->phandle == *ph; -} - -struct of_device *of_find_device_by_phandle(phandle ph) -{ - struct device *dev; - - dev = bus_find_device(&of_platform_bus_type, - NULL, &ph, of_dev_phandle_match); - if (dev) - return to_of_device(dev); - return NULL; -} -EXPORT_SYMBOL(of_find_device_by_phandle); diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index 09bed44dfcd3..ba7c4b16ed35 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -76,8 +76,11 @@ __setup("hlt", hlt_setup); void default_idle(void) { if (likely(hlt_counter)) { - while (!need_resched()) - cpu_relax(); + local_irq_disable(); + stop_critical_timings(); + cpu_relax(); + start_critical_timings(); + local_irq_enable(); } else { clear_thread_flag(TIF_POLLING_NRFLAG); smp_mb__after_clear_bit(); diff --git a/arch/microblaze/kernel/prom_parse.c b/arch/microblaze/kernel/prom_parse.c index bf7e6c27e318..d33ba17601fa 100644 --- a/arch/microblaze/kernel/prom_parse.c +++ b/arch/microblaze/kernel/prom_parse.c @@ -6,219 +6,11 @@ #include <linux/module.h> #include <linux/ioport.h> #include <linux/etherdevice.h> +#include <linux/of_address.h> #include <asm/prom.h> #include <asm/pci-bridge.h> -#define PRu64 "%llx" - -/* Max address size we deal with */ -#define OF_MAX_ADDR_CELLS 4 -#define OF_CHECK_COUNTS(na, ns) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \ - (ns) > 0) - -static struct of_bus *of_match_bus(struct device_node *np); -static int __of_address_to_resource(struct device_node *dev, - const u32 *addrp, u64 size, unsigned int flags, - struct resource *r); - -/* Debug utility */ -#ifdef DEBUG -static void of_dump_addr(const char *s, const u32 *addr, int na) -{ - printk(KERN_INFO "%s", s); - while (na--) - printk(KERN_INFO " %08x", *(addr++)); - printk(KERN_INFO "\n"); -} -#else -static void of_dump_addr(const char *s, const u32 *addr, int na) { } -#endif - -/* Callbacks for bus specific translators */ -struct of_bus { - const char *name; - const char *addresses; - int (*match)(struct device_node *parent); - void (*count_cells)(struct device_node *child, - int *addrc, int *sizec); - u64 (*map)(u32 *addr, const u32 *range, - int na, int ns, int pna); - int (*translate)(u32 *addr, u64 offset, int na); - unsigned int (*get_flags)(const u32 *addr); -}; - -/* - * Default translator (generic bus) - */ - -static void of_bus_default_count_cells(struct device_node *dev, - int *addrc, int *sizec) -{ - if (addrc) - *addrc = of_n_addr_cells(dev); - if (sizec) - *sizec = of_n_size_cells(dev); -} - -static u64 of_bus_default_map(u32 *addr, const u32 *range, - int na, int ns, int pna) -{ - u64 cp, s, da; - - cp = of_read_number(range, na); - s = of_read_number(range + na + pna, ns); - da = of_read_number(addr, na); - - pr_debug("OF: default map, cp="PRu64", s="PRu64", da="PRu64"\n", - cp, s, da); - - if (da < cp || da >= (cp + s)) - return OF_BAD_ADDR; - return da - cp; -} - -static int of_bus_default_translate(u32 *addr, u64 offset, int na) -{ - u64 a = of_read_number(addr, na); - memset(addr, 0, na * 4); - a += offset; - if (na > 1) - addr[na - 2] = a >> 32; - addr[na - 1] = a & 0xffffffffu; - - return 0; -} - -static unsigned int of_bus_default_get_flags(const u32 *addr) -{ - return IORESOURCE_MEM; -} - #ifdef CONFIG_PCI -/* - * PCI bus specific translator - */ - -static int of_bus_pci_match(struct device_node *np) -{ - /* "vci" is for the /chaos bridge on 1st-gen PCI powermacs */ - return !strcmp(np->type, "pci") || !strcmp(np->type, "vci"); -} - -static void of_bus_pci_count_cells(struct device_node *np, - int *addrc, int *sizec) -{ - if (addrc) - *addrc = 3; - if (sizec) - *sizec = 2; -} - -static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna) -{ - u64 cp, s, da; - - /* Check address type match */ - if ((addr[0] ^ range[0]) & 0x03000000) - return OF_BAD_ADDR; - - /* Read address values, skipping high cell */ - cp = of_read_number(range + 1, na - 1); - s = of_read_number(range + na + pna, ns); - da = of_read_number(addr + 1, na - 1); - - pr_debug("OF: PCI map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da); - - if (da < cp || da >= (cp + s)) - return OF_BAD_ADDR; - return da - cp; -} - -static int of_bus_pci_translate(u32 *addr, u64 offset, int na) -{ - return of_bus_default_translate(addr + 1, offset, na - 1); -} - -static unsigned int of_bus_pci_get_flags(const u32 *addr) -{ - unsigned int flags = 0; - u32 w = addr[0]; - - switch ((w >> 24) & 0x03) { - case 0x01: - flags |= IORESOURCE_IO; - break; - case 0x02: /* 32 bits */ - case 0x03: /* 64 bits */ - flags |= IORESOURCE_MEM; - break; - } - if (w & 0x40000000) - flags |= IORESOURCE_PREFETCH; - return flags; -} - -const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, - unsigned int *flags) -{ - const u32 *prop; - unsigned int psize; - struct device_node *parent; - struct of_bus *bus; - int onesize, i, na, ns; - - /* Get parent & match bus type */ - parent = of_get_parent(dev); - if (parent == NULL) - return NULL; - bus = of_match_bus(parent); - if (strcmp(bus->name, "pci")) { - of_node_put(parent); - return NULL; - } - bus->count_cells(dev, &na, &ns); - of_node_put(parent); - if (!OF_CHECK_COUNTS(na, ns)) - return NULL; - - /* Get "reg" or "assigned-addresses" property */ - prop = of_get_property(dev, bus->addresses, &psize); - if (prop == NULL) - return NULL; - psize /= 4; - - onesize = na + ns; - 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_number(prop + na, ns); - if (flags) - *flags = bus->get_flags(prop); - return prop; - } - return NULL; -} -EXPORT_SYMBOL(of_get_pci_address); - -int of_pci_address_to_resource(struct device_node *dev, int bar, - struct resource *r) -{ - const u32 *addrp; - u64 size; - unsigned int flags; - - addrp = of_get_pci_address(dev, bar, &size, &flags); - if (addrp == NULL) - return -EINVAL; - return __of_address_to_resource(dev, addrp, size, flags, r); -} -EXPORT_SYMBOL_GPL(of_pci_address_to_resource); - -static u8 of_irq_pci_swizzle(u8 slot, u8 pin) -{ - return (((pin - 1) + slot) % 4) + 1; -} - int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq) { struct device_node *dn, *ppnode; @@ -293,331 +85,6 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq) EXPORT_SYMBOL_GPL(of_irq_map_pci); #endif /* CONFIG_PCI */ -/* - * ISA bus specific translator - */ - -static int of_bus_isa_match(struct device_node *np) -{ - return !strcmp(np->name, "isa"); -} - -static void of_bus_isa_count_cells(struct device_node *child, - int *addrc, int *sizec) -{ - if (addrc) - *addrc = 2; - if (sizec) - *sizec = 1; -} - -static u64 of_bus_isa_map(u32 *addr, const u32 *range, int na, int ns, int pna) -{ - u64 cp, s, da; - - /* Check address type match */ - if ((addr[0] ^ range[0]) & 0x00000001) - return OF_BAD_ADDR; - - /* Read address values, skipping high cell */ - cp = of_read_number(range + 1, na - 1); - s = of_read_number(range + na + pna, ns); - da = of_read_number(addr + 1, na - 1); - - pr_debug("OF: ISA map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da); - - if (da < cp || da >= (cp + s)) - return OF_BAD_ADDR; - return da - cp; -} - -static int of_bus_isa_translate(u32 *addr, u64 offset, int na) -{ - return of_bus_default_translate(addr + 1, offset, na - 1); -} - -static unsigned int of_bus_isa_get_flags(const u32 *addr) -{ - unsigned int flags = 0; - u32 w = addr[0]; - - if (w & 1) - flags |= IORESOURCE_IO; - else - flags |= IORESOURCE_MEM; - return flags; -} - -/* - * Array of bus specific translators - */ - -static struct of_bus of_busses[] = { -#ifdef CONFIG_PCI - /* PCI */ - { - .name = "pci", - .addresses = "assigned-addresses", - .match = of_bus_pci_match, - .count_cells = of_bus_pci_count_cells, - .map = of_bus_pci_map, - .translate = of_bus_pci_translate, - .get_flags = of_bus_pci_get_flags, - }, -#endif /* CONFIG_PCI */ - /* ISA */ - { - .name = "isa", - .addresses = "reg", - .match = of_bus_isa_match, - .count_cells = of_bus_isa_count_cells, - .map = of_bus_isa_map, - .translate = of_bus_isa_translate, - .get_flags = of_bus_isa_get_flags, - }, - /* Default */ - { - .name = "default", - .addresses = "reg", - .match = NULL, - .count_cells = of_bus_default_count_cells, - .map = of_bus_default_map, - .translate = of_bus_default_translate, - .get_flags = of_bus_default_get_flags, - }, -}; - -static struct of_bus *of_match_bus(struct device_node *np) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(of_busses); i++) - if (!of_busses[i].match || of_busses[i].match(np)) - return &of_busses[i]; - BUG(); - return NULL; -} - -static int of_translate_one(struct device_node *parent, struct of_bus *bus, - struct of_bus *pbus, u32 *addr, - int na, int ns, int pna) -{ - const u32 *ranges; - unsigned int rlen; - int rone; - u64 offset = OF_BAD_ADDR; - - /* Normally, an absence of a "ranges" property means we are - * crossing a non-translatable boundary, and thus the addresses - * below the current not cannot be converted to CPU physical ones. - * Unfortunately, while this is very clear in the spec, it's not - * what Apple understood, and they do have things like /uni-n or - * /ht nodes with no "ranges" property and a lot of perfectly - * useable mapped devices below them. Thus we treat the absence of - * "ranges" as equivalent to an empty "ranges" property which means - * a 1:1 translation at that level. It's up to the caller not to try - * to translate addresses that aren't supposed to be translated in - * the first place. --BenH. - */ - ranges = of_get_property(parent, "ranges", (int *) &rlen); - if (ranges == NULL || rlen == 0) { - offset = of_read_number(addr, na); - memset(addr, 0, pna * 4); - pr_debug("OF: no ranges, 1:1 translation\n"); - goto finish; - } - - pr_debug("OF: walking ranges...\n"); - - /* Now walk through the ranges */ - rlen /= 4; - rone = na + pna + ns; - for (; rlen >= rone; rlen -= rone, ranges += rone) { - offset = bus->map(addr, ranges, na, ns, pna); - if (offset != OF_BAD_ADDR) - break; - } - if (offset == OF_BAD_ADDR) { - pr_debug("OF: not found !\n"); - return 1; - } - memcpy(addr, ranges + na, 4 * pna); - - finish: - of_dump_addr("OF: parent translation for:", addr, pna); - pr_debug("OF: with offset: "PRu64"\n", offset); - - /* Translate it into parent bus space */ - return pbus->translate(addr, offset, pna); -} - -/* - * Translate an address from the device-tree into a CPU physical address, - * this walks up the tree and applies the various bus mappings on the - * way. - * - * Note: We consider that crossing any level with #size-cells == 0 to mean - * that translation is impossible (that is we are not dealing with a value - * that can be mapped to a cpu physical address). This is not really specified - * that way, but this is traditionally the way IBM at least do things - */ -u64 of_translate_address(struct device_node *dev, const u32 *in_addr) -{ - struct device_node *parent = NULL; - struct of_bus *bus, *pbus; - u32 addr[OF_MAX_ADDR_CELLS]; - int na, ns, pna, pns; - u64 result = OF_BAD_ADDR; - - pr_debug("OF: ** translation for device %s **\n", dev->full_name); - - /* Increase refcount at current level */ - of_node_get(dev); - - /* Get parent & match bus type */ - parent = of_get_parent(dev); - if (parent == NULL) - goto bail; - bus = of_match_bus(parent); - - /* Cound address cells & copy address locally */ - bus->count_cells(dev, &na, &ns); - if (!OF_CHECK_COUNTS(na, ns)) { - printk(KERN_ERR "prom_parse: Bad cell count for %s\n", - dev->full_name); - goto bail; - } - memcpy(addr, in_addr, na * 4); - - pr_debug("OF: bus is %s (na=%d, ns=%d) on %s\n", - bus->name, na, ns, parent->full_name); - of_dump_addr("OF: translating address:", addr, na); - - /* Translate */ - for (;;) { - /* Switch to parent bus */ - of_node_put(dev); - dev = parent; - parent = of_get_parent(dev); - - /* If root, we have finished */ - if (parent == NULL) { - pr_debug("OF: reached root node\n"); - result = of_read_number(addr, na); - break; - } - - /* Get new parent bus and counts */ - pbus = of_match_bus(parent); - pbus->count_cells(dev, &pna, &pns); - if (!OF_CHECK_COUNTS(pna, pns)) { - printk(KERN_ERR "prom_parse: Bad cell count for %s\n", - dev->full_name); - break; - } - - pr_debug("OF: parent bus is %s (na=%d, ns=%d) on %s\n", - pbus->name, pna, pns, parent->full_name); - - /* Apply bus translation */ - if (of_translate_one(dev, bus, pbus, addr, na, ns, pna)) - break; - - /* Complete the move up one level */ - na = pna; - ns = pns; - bus = pbus; - - of_dump_addr("OF: one level translation:", addr, na); - } - bail: - of_node_put(parent); - of_node_put(dev); - - return result; -} -EXPORT_SYMBOL(of_translate_address); - -const u32 *of_get_address(struct device_node *dev, int index, u64 *size, - unsigned int *flags) -{ - const u32 *prop; - unsigned int psize; - struct device_node *parent; - struct of_bus *bus; - int onesize, i, na, ns; - - /* Get parent & match bus type */ - parent = of_get_parent(dev); - if (parent == NULL) - return NULL; - bus = of_match_bus(parent); - bus->count_cells(dev, &na, &ns); - of_node_put(parent); - if (!OF_CHECK_COUNTS(na, ns)) - return NULL; - - /* Get "reg" or "assigned-addresses" property */ - prop = of_get_property(dev, bus->addresses, (int *) &psize); - if (prop == NULL) - return NULL; - psize /= 4; - - onesize = na + ns; - for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++) - if (i == index) { - if (size) - *size = of_read_number(prop + na, ns); - if (flags) - *flags = bus->get_flags(prop); - return prop; - } - return NULL; -} -EXPORT_SYMBOL(of_get_address); - -static int __of_address_to_resource(struct device_node *dev, const u32 *addrp, - u64 size, unsigned int flags, - struct resource *r) -{ - u64 taddr; - - if ((flags & (IORESOURCE_IO | IORESOURCE_MEM)) == 0) - return -EINVAL; - taddr = of_translate_address(dev, addrp); - if (taddr == OF_BAD_ADDR) - return -EINVAL; - memset(r, 0, sizeof(struct resource)); - if (flags & IORESOURCE_IO) { - unsigned long port; - port = -1; /* pci_address_to_pio(taddr); */ - if (port == (unsigned long)-1) - return -EINVAL; - r->start = port; - r->end = port + size - 1; - } else { - r->start = taddr; - r->end = taddr + size - 1; - } - r->flags = flags; - r->name = dev->name; - return 0; -} - -int of_address_to_resource(struct device_node *dev, int index, - struct resource *r) -{ - const u32 *addrp; - u64 size; - unsigned int flags; - - addrp = of_get_address(dev, index, &size, &flags); - if (addrp == NULL) - return -EINVAL; - return __of_address_to_resource(dev, addrp, size, flags, r); -} -EXPORT_SYMBOL_GPL(of_address_to_resource); - void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, unsigned long *busno, unsigned long *phys, unsigned long *size) { @@ -644,308 +111,6 @@ void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, *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; - const phandle *parp; - - if (!of_node_get(child)) - return NULL; - - do { - parp = of_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 && of_get_property(p, "#interrupt-cells", NULL) == NULL); - - return p; -} - -/* 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 (of_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, const u32 *intspec, u32 ointsize, - const u32 *addr, struct of_irq *out_irq) -{ - struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL; - const u32 *tmp, *imap, *imask; - u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0; - int imaplen, match, i; - - pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...]," - "ointsize=%d\n", - parent->full_name, intspec[0], intspec[1], ointsize); - - 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 = of_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) { - pr_debug(" -> no parent found !\n"); - goto fail; - } - - pr_debug("of_irq_map_raw: ipar=%s, size=%d\n", - ipar->full_name, intsize); - - if (ointsize != intsize) - return -EINVAL; - - /* 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 = of_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; - - pr_debug(" -> 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 (of_get_property(ipar, "interrupt-controller", NULL) != - NULL) { - pr_debug(" -> 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 = of_get_property(ipar, "interrupt-map", &imaplen); - /* No interrupt map, check for an interrupt parent */ - if (imap == NULL) { - pr_debug(" -> no map, getting parent\n"); - newpar = of_irq_find_parent(ipar); - goto skiplevel; - } - imaplen /= sizeof(u32); - - /* Look for a mask */ - imask = of_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) { - pr_debug(" -> 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; - - pr_debug(" -> 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) { - pr_debug(" -> imap parent not found !\n"); - goto fail; - } - - /* Get #interrupt-cells and #address-cells of new - * parent - */ - tmp = of_get_property(newpar, "#interrupt-cells", NULL); - if (tmp == NULL) { - pr_debug(" -> parent lacks " - "#interrupt-cells!\n"); - goto fail; - } - newintsize = *tmp; - tmp = of_get_property(newpar, "#address-cells", NULL); - newaddrsize = (tmp == NULL) ? 0 : *tmp; - - pr_debug(" -> newintsize=%d, newaddrsize=%d\n", - newintsize, newaddrsize); - - /* Check for malformed properties */ - if (imaplen < (newaddrsize + newintsize)) - goto fail; - - imap += newaddrsize + newintsize; - imaplen -= newaddrsize + newintsize; - - pr_debug(" -> 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 */ - pr_debug(" -> 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); - -int of_irq_map_one(struct device_node *device, - int index, struct of_irq *out_irq) -{ - struct device_node *p; - const u32 *intspec, *tmp, *addr; - u32 intsize, intlen; - int res; - - pr_debug("of_irq_map_one: dev=%s, index=%d\n", - device->full_name, index); - - /* Get the interrupts property */ - intspec = of_get_property(device, "interrupts", (int *) &intlen); - if (intspec == NULL) - return -EINVAL; - intlen /= sizeof(u32); - - pr_debug(" intspec=%d intlen=%d\n", *intspec, intlen); - - /* Get the reg property (if any) */ - addr = of_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 = of_get_property(p, "#interrupt-cells", NULL); - if (tmp == NULL) { - of_node_put(p); - return -EINVAL; - } - intsize = *tmp; - - pr_debug(" intsize=%d intlen=%d\n", intsize, intlen); - - /* Check index */ - if ((index + 1) * intsize > intlen) - return -EINVAL; - - /* Get new specifier and map it */ - res = of_irq_map_raw(p, intspec + index * intsize, intsize, - addr, out_irq); - of_node_put(p); - return res; -} -EXPORT_SYMBOL_GPL(of_irq_map_one); - /** * Search the device tree for the best MAC address to use. 'mac-address' is * checked first, because that is supposed to contain to "most recent" MAC @@ -983,43 +148,3 @@ const void *of_get_mac_address(struct device_node *np) return NULL; } EXPORT_SYMBOL(of_get_mac_address); - -int of_irq_to_resource(struct device_node *dev, int index, struct resource *r) -{ - struct of_irq out_irq; - int irq; - int res; - - res = of_irq_map_one(dev, index, &out_irq); - - /* Get irq for the device */ - if (res) { - pr_debug("IRQ not found... code = %d", res); - return NO_IRQ; - } - /* Assuming single interrupt controller... */ - irq = out_irq.specifier[0]; - - pr_debug("IRQ found = %d", irq); - - /* Only dereference the resource if both the - * resource and the irq are valid. */ - if (r && irq != NO_IRQ) { - r->start = r->end = irq; - r->flags = IORESOURCE_IRQ; - } - - return irq; -} -EXPORT_SYMBOL_GPL(of_irq_to_resource); - -void __iomem *of_iomap(struct device_node *np, int index) -{ - struct resource res; - - if (of_address_to_resource(np, index, &res)) - return NULL; - - return ioremap(res.start, 1 + res.end - res.start); -} -EXPORT_SYMBOL(of_iomap); diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c index a4a7770c6140..dc03ffc8174a 100644 --- a/arch/microblaze/kernel/ptrace.c +++ b/arch/microblaze/kernel/ptrace.c @@ -38,6 +38,8 @@ #include <asm/processor.h> #include <linux/uaccess.h> #include <asm/asm-offsets.h> +#include <asm/cacheflush.h> +#include <asm/io.h> /* Returns the address where the register at REG_OFFS in P is stashed away. */ static microblaze_reg_t *reg_save_addr(unsigned reg_offs, @@ -101,8 +103,21 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) microblaze_reg_t *reg_addr = reg_save_addr(addr, child); if (request == PTRACE_PEEKUSR) val = *reg_addr; - else + else { +#if 1 *reg_addr = data; +#else + /* MS potential problem on WB system + * Be aware that reg_addr is virtual address + * virt_to_phys conversion is necessary. + * This could be sensible solution. + */ + u32 paddr = virt_to_phys((u32)reg_addr); + invalidate_icache_range(paddr, paddr + 4); + *reg_addr = data; + flush_dcache_range(paddr, paddr + 4); +#endif + } } else rval = -EIO; diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c index a1721a33042e..bd8ccab5ceff 100644 --- a/arch/microblaze/kernel/reset.c +++ b/arch/microblaze/kernel/reset.c @@ -24,8 +24,8 @@ static int of_reset_gpio_handle(void) int ret; /* variable which stored handle reset gpio pin */ struct device_node *root; /* root node */ struct device_node *gpio; /* gpio node */ - struct of_gpio_chip *of_gc = NULL; - enum of_gpio_flags flags ; + struct gpio_chip *gc; + u32 flags; const void *gpio_spec; /* find out root node */ @@ -39,19 +39,19 @@ static int of_reset_gpio_handle(void) goto err0; } - of_gc = gpio->data; - if (!of_gc) { + gc = of_node_to_gpiochip(gpio); + if (!gc) { pr_debug("%s: gpio controller %s isn't registered\n", root->full_name, gpio->full_name); ret = -ENODEV; goto err1; } - ret = of_gc->xlate(of_gc, root, gpio_spec, &flags); + ret = gc->of_xlate(gc, root, gpio_spec, &flags); if (ret < 0) goto err1; - ret += of_gc->gc.base; + ret += gc->base; err1: of_node_put(gpio); err0: diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index 17c98dbcec88..f5f768842354 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -213,15 +213,9 @@ static struct notifier_block dflt_plat_bus_notifier = { .priority = INT_MAX, }; -static struct notifier_block dflt_of_bus_notifier = { - .notifier_call = dflt_bus_notify, - .priority = INT_MAX, -}; - static int __init setup_bus_notifier(void) { bus_register_notifier(&platform_bus_type, &dflt_plat_bus_notifier); - bus_register_notifier(&of_platform_bus_type, &dflt_of_bus_notifier); return 0; } diff --git a/arch/microblaze/kernel/stacktrace.c b/arch/microblaze/kernel/stacktrace.c index 123692f22647..84bc6686102c 100644 --- a/arch/microblaze/kernel/stacktrace.c +++ b/arch/microblaze/kernel/stacktrace.c @@ -14,52 +14,18 @@ #include <linux/thread_info.h> #include <linux/ptrace.h> #include <linux/module.h> +#include <asm/unwind.h> -/* FIXME initial support */ void save_stack_trace(struct stack_trace *trace) { - unsigned long *sp; - unsigned long addr; - asm("addik %0, r1, 0" : "=r" (sp)); - - while (!kstack_end(sp)) { - addr = *sp++; - if (__kernel_text_address(addr)) { - if (trace->skip > 0) - trace->skip--; - else - trace->entries[trace->nr_entries++] = addr; - - if (trace->nr_entries >= trace->max_entries) - break; - } - } + /* Exclude our helper functions from the trace*/ + trace->skip += 2; + microblaze_unwind(NULL, trace); } EXPORT_SYMBOL_GPL(save_stack_trace); void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) { - unsigned int *sp; - unsigned long addr; - - struct thread_info *ti = task_thread_info(tsk); - - if (tsk == current) - asm("addik %0, r1, 0" : "=r" (sp)); - else - sp = (unsigned int *)ti->cpu_context.r1; - - while (!kstack_end(sp)) { - addr = *sp++; - if (__kernel_text_address(addr)) { - if (trace->skip > 0) - trace->skip--; - else - trace->entries[trace->nr_entries++] = addr; - - if (trace->nr_entries >= trace->max_entries) - break; - } - } + microblaze_unwind(tsk, trace); } EXPORT_SYMBOL_GPL(save_stack_trace_tsk); diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c index f4e00b7f1259..6abab6ebedbe 100644 --- a/arch/microblaze/kernel/sys_microblaze.c +++ b/arch/microblaze/kernel/sys_microblaze.c @@ -47,7 +47,7 @@ asmlinkage long microblaze_clone(int flags, unsigned long stack, struct pt_regs return do_fork(flags, stack, regs, 0, NULL, NULL); } -asmlinkage long microblaze_execve(char __user *filenamei, char __user *__user *argv, +asmlinkage long microblaze_execve(const char __user *filenamei, char __user *__user *argv, char __user *__user *envp, struct pt_regs *regs) { int error; diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c index ed61b2f17719..b1380ae93ae1 100644 --- a/arch/microblaze/kernel/timer.c +++ b/arch/microblaze/kernel/timer.c @@ -28,6 +28,7 @@ #include <asm/prom.h> #include <asm/irq.h> #include <asm/system.h> +#include <linux/cnt32_to_63.h> #ifdef CONFIG_SELFMOD_TIMER #include <asm/selfmod.h> @@ -135,7 +136,7 @@ static void microblaze_timer_set_mode(enum clock_event_mode mode, static struct clock_event_device clockevent_microblaze_timer = { .name = "microblaze_clockevent", .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, - .shift = 24, + .shift = 8, .rating = 300, .set_next_event = microblaze_timer_set_next_event, .set_mode = microblaze_timer_set_mode, @@ -195,7 +196,7 @@ static cycle_t microblaze_cc_read(const struct cyclecounter *cc) static struct cyclecounter microblaze_cc = { .read = microblaze_cc_read, .mask = CLOCKSOURCE_MASK(32), - .shift = 24, + .shift = 8, }; int __init init_microblaze_timecounter(void) @@ -213,7 +214,7 @@ static struct clocksource clocksource_microblaze = { .rating = 300, .read = microblaze_read, .mask = CLOCKSOURCE_MASK(32), - .shift = 24, /* I can shift it */ + .shift = 8, /* I can shift it */ .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; @@ -235,6 +236,12 @@ static int __init microblaze_clocksource_init(void) return 0; } +/* + * We have to protect accesses before timer initialization + * and return 0 for sched_clock function below. + */ +static int timer_initialized; + void __init time_init(void) { u32 irq, i = 0; @@ -289,4 +296,15 @@ void __init time_init(void) #endif microblaze_clocksource_init(); microblaze_clockevent_init(); + timer_initialized = 1; +} + +unsigned long long notrace sched_clock(void) +{ + if (timer_initialized) { + struct clocksource *cs = &clocksource_microblaze; + cycle_t cyc = cnt32_to_63(cs->read(NULL)); + return clocksource_cyc2ns(cyc, cs->mult, cs->shift); + } + return 0; } diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c index 75e49202a5ed..ba034d421ec2 100644 --- a/arch/microblaze/kernel/traps.c +++ b/arch/microblaze/kernel/traps.c @@ -16,13 +16,14 @@ #include <asm/exceptions.h> #include <asm/system.h> +#include <asm/unwind.h> void trap_init(void) { __enable_hw_exceptions(); } -static unsigned long kstack_depth_to_print = 24; +static unsigned long kstack_depth_to_print; /* 0 == entire stack */ static int __init kstack_setup(char *s) { @@ -30,31 +31,47 @@ static int __init kstack_setup(char *s) } __setup("kstack=", kstack_setup); -void show_trace(struct task_struct *task, unsigned long *stack) +void show_stack(struct task_struct *task, unsigned long *sp) { - unsigned long addr; - - if (!stack) - stack = (unsigned long *)&stack; + unsigned long words_to_show; + u32 fp = (u32) sp; + + if (fp == 0) { + if (task) { + fp = ((struct thread_info *) + (task->stack))->cpu_context.r1; + } else { + /* Pick up caller of dump_stack() */ + fp = (u32)&sp - 8; + } + } - printk(KERN_NOTICE "Call Trace: "); -#ifdef CONFIG_KALLSYMS - printk(KERN_NOTICE "\n"); -#endif - while (!kstack_end(stack)) { - addr = *stack++; - /* - * If the address is either in the text segment of the - * kernel, or in the region which contains vmalloc'ed - * memory, it *may* be the address of a calling - * routine; if so, print it so that someone tracing - * down the cause of the crash will be able to figure - * out the call path that was taken. - */ - if (kernel_text_address(addr)) - print_ip_sym(addr); + words_to_show = (THREAD_SIZE - (fp & (THREAD_SIZE - 1))) >> 2; + if (kstack_depth_to_print && (words_to_show > kstack_depth_to_print)) + words_to_show = kstack_depth_to_print; + + pr_info("Kernel Stack:\n"); + + /* + * Make the first line an 'odd' size if necessary to get + * remaining lines to start at an address multiple of 0x10 + */ + if (fp & 0xF) { + unsigned long line1_words = (0x10 - (fp & 0xF)) >> 2; + if (line1_words < words_to_show) { + print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 32, + 4, (void *)fp, line1_words << 2, 0); + fp += line1_words << 2; + words_to_show -= line1_words; + } } - printk(KERN_NOTICE "\n"); + print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 32, 4, (void *)fp, + words_to_show << 2, 0); + printk(KERN_INFO "\n\n"); + + pr_info("Call Trace:\n"); + microblaze_unwind(task, NULL); + pr_info("\n"); if (!task) task = current; @@ -62,34 +79,6 @@ void show_trace(struct task_struct *task, unsigned long *stack) debug_show_held_locks(task); } -void show_stack(struct task_struct *task, unsigned long *sp) -{ - unsigned long *stack; - int i; - - if (sp == NULL) { - if (task) - sp = (unsigned long *) ((struct thread_info *) - (task->stack))->cpu_context.r1; - else - sp = (unsigned long *)&sp; - } - - stack = sp; - - printk(KERN_INFO "\nStack:\n "); - - for (i = 0; i < kstack_depth_to_print; i++) { - if (kstack_end(sp)) - break; - if (i && ((i % 8) == 0)) - printk("\n "); - printk("%08lx ", *sp++); - } - printk("\n"); - show_trace(task, stack); -} - void dump_stack(void) { show_stack(NULL, NULL); diff --git a/arch/microblaze/kernel/unwind.c b/arch/microblaze/kernel/unwind.c new file mode 100644 index 000000000000..fefac5c33586 --- /dev/null +++ b/arch/microblaze/kernel/unwind.c @@ -0,0 +1,318 @@ +/* + * Backtrace support for Microblaze + * + * Copyright (C) 2010 Digital Design Corporation + * + * Based on arch/sh/kernel/cpu/sh5/unwind.c code which is: + * Copyright (C) 2004 Paul Mundt + * Copyright (C) 2004 Richard Curnow + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +/* #define DEBUG 1 */ +#include <linux/kallsyms.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/stacktrace.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/io.h> +#include <asm/sections.h> +#include <asm/exceptions.h> +#include <asm/unwind.h> + +struct stack_trace; + +/* + * On Microblaze, finding the previous stack frame is a little tricky. + * At this writing (3/2010), Microblaze does not support CONFIG_FRAME_POINTERS, + * and even if it did, gcc (4.1.2) does not store the frame pointer at + * a consistent offset within each frame. To determine frame size, it is + * necessary to search for the assembly instruction that creates or reclaims + * the frame and extract the size from it. + * + * Microblaze stores the stack pointer in r1, and creates a frame via + * + * addik r1, r1, -FRAME_SIZE + * + * The frame is reclaimed via + * + * addik r1, r1, FRAME_SIZE + * + * Frame creation occurs at or near the top of a function. + * Depending on the compiler, reclaim may occur at the end, or before + * a mid-function return. + * + * A stack frame is usually not created in a leaf function. + * + */ + +/** + * get_frame_size - Extract the stack adjustment from an + * "addik r1, r1, adjust" instruction + * @instr : Microblaze instruction + * + * Return - Number of stack bytes the instruction reserves or reclaims + */ +inline long get_frame_size(unsigned long instr) +{ + return abs((s16)(instr & 0xFFFF)); +} + +/** + * find_frame_creation - Search backward to find the instruction that creates + * the stack frame (hopefully, for the same function the + * initial PC is in). + * @pc : Program counter at which to begin the search + * + * Return - PC at which stack frame creation occurs + * NULL if this cannot be found, i.e. a leaf function + */ +static unsigned long *find_frame_creation(unsigned long *pc) +{ + int i; + + /* NOTE: Distance to search is arbitrary + * 250 works well for most things, + * 750 picks up things like tcp_recvmsg(), + * 1000 needed for fat_fill_super() + */ + for (i = 0; i < 1000; i++, pc--) { + unsigned long instr; + s16 frame_size; + + if (!kernel_text_address((unsigned long) pc)) + return NULL; + + instr = *pc; + + /* addik r1, r1, foo ? */ + if ((instr & 0xFFFF0000) != 0x30210000) + continue; /* No */ + + frame_size = get_frame_size(instr); + if ((frame_size < 8) || (frame_size & 3)) { + pr_debug(" Invalid frame size %d at 0x%p\n", + frame_size, pc); + return NULL; + } + + pr_debug(" Found frame creation at 0x%p, size %d\n", pc, + frame_size); + return pc; + } + + return NULL; +} + +/** + * lookup_prev_stack_frame - Find the stack frame of the previous function. + * @fp : Frame (stack) pointer for current function + * @pc : Program counter within current function + * @leaf_return : r15 value within current function. If the current function + * is a leaf, this is the caller's return address. + * @pprev_fp : On exit, set to frame (stack) pointer for previous function + * @pprev_pc : On exit, set to current function caller's return address + * + * Return - 0 on success, -EINVAL if the previous frame cannot be found + */ +static int lookup_prev_stack_frame(unsigned long fp, unsigned long pc, + unsigned long leaf_return, + unsigned long *pprev_fp, + unsigned long *pprev_pc) +{ + unsigned long *prologue = NULL; + + /* _switch_to is a special leaf function */ + if (pc != (unsigned long) &_switch_to) + prologue = find_frame_creation((unsigned long *)pc); + + if (prologue) { + long frame_size = get_frame_size(*prologue); + + *pprev_fp = fp + frame_size; + *pprev_pc = *(unsigned long *)fp; + } else { + if (!leaf_return) + return -EINVAL; + *pprev_pc = leaf_return; + *pprev_fp = fp; + } + + /* NOTE: don't check kernel_text_address here, to allow display + * of userland return address + */ + return (!*pprev_pc || (*pprev_pc & 3)) ? -EINVAL : 0; +} + +static void microblaze_unwind_inner(struct task_struct *task, + unsigned long pc, unsigned long fp, + unsigned long leaf_return, + struct stack_trace *trace); + +/** + * unwind_trap - Unwind through a system trap, that stored previous state + * on the stack. + */ +#ifdef CONFIG_MMU +static inline void unwind_trap(struct task_struct *task, unsigned long pc, + unsigned long fp, struct stack_trace *trace) +{ + /* To be implemented */ +} +#else +static inline void unwind_trap(struct task_struct *task, unsigned long pc, + unsigned long fp, struct stack_trace *trace) +{ + const struct pt_regs *regs = (const struct pt_regs *) fp; + microblaze_unwind_inner(task, regs->pc, regs->r1, regs->r15, trace); +} +#endif + +/** + * microblaze_unwind_inner - Unwind the stack from the specified point + * @task : Task whose stack we are to unwind (may be NULL) + * @pc : Program counter from which we start unwinding + * @fp : Frame (stack) pointer from which we start unwinding + * @leaf_return : Value of r15 at pc. If the function is a leaf, this is + * the caller's return address. + * @trace : Where to store stack backtrace (PC values). + * NULL == print backtrace to kernel log + */ +void microblaze_unwind_inner(struct task_struct *task, + unsigned long pc, unsigned long fp, + unsigned long leaf_return, + struct stack_trace *trace) +{ + int ofs = 0; + + pr_debug(" Unwinding with PC=%p, FP=%p\n", (void *)pc, (void *)fp); + if (!pc || !fp || (pc & 3) || (fp & 3)) { + pr_debug(" Invalid state for unwind, aborting\n"); + return; + } + for (; pc != 0;) { + unsigned long next_fp, next_pc = 0; + unsigned long return_to = pc + 2 * sizeof(unsigned long); + const struct trap_handler_info *handler = + µblaze_trap_handlers; + + /* Is previous function the HW exception handler? */ + if ((return_to >= (unsigned long)&_hw_exception_handler) + &&(return_to < (unsigned long)&ex_handler_unhandled)) { + /* + * HW exception handler doesn't save all registers, + * so we open-code a special case of unwind_trap() + */ +#ifndef CONFIG_MMU + const struct pt_regs *regs = + (const struct pt_regs *) fp; +#endif + pr_info("HW EXCEPTION\n"); +#ifndef CONFIG_MMU + microblaze_unwind_inner(task, regs->r17 - 4, + fp + EX_HANDLER_STACK_SIZ, + regs->r15, trace); +#endif + return; + } + + /* Is previous function a trap handler? */ + for (; handler->start_addr; ++handler) { + if ((return_to >= handler->start_addr) + && (return_to <= handler->end_addr)) { + if (!trace) + pr_info("%s\n", handler->trap_name); + unwind_trap(task, pc, fp, trace); + return; + } + } + pc -= ofs; + + if (trace) { +#ifdef CONFIG_STACKTRACE + if (trace->skip > 0) + trace->skip--; + else + trace->entries[trace->nr_entries++] = pc; + + if (trace->nr_entries >= trace->max_entries) + break; +#endif + } else { + /* Have we reached userland? */ + if (unlikely(pc == task_pt_regs(task)->pc)) { + pr_info("[<%p>] PID %lu [%s]\n", + (void *) pc, + (unsigned long) task->pid, + task->comm); + break; + } else + print_ip_sym(pc); + } + + /* Stop when we reach anything not part of the kernel */ + if (!kernel_text_address(pc)) + break; + + if (lookup_prev_stack_frame(fp, pc, leaf_return, &next_fp, + &next_pc) == 0) { + ofs = sizeof(unsigned long); + pc = next_pc & ~3; + fp = next_fp; + leaf_return = 0; + } else { + pr_debug(" Failed to find previous stack frame\n"); + break; + } + + pr_debug(" Next PC=%p, next FP=%p\n", + (void *)next_pc, (void *)next_fp); + } +} + +/** + * microblaze_unwind - Stack unwinder for Microblaze (external entry point) + * @task : Task whose stack we are to unwind (NULL == current) + * @trace : Where to store stack backtrace (PC values). + * NULL == print backtrace to kernel log + */ +void microblaze_unwind(struct task_struct *task, struct stack_trace *trace) +{ + if (task) { + if (task == current) { + const struct pt_regs *regs = task_pt_regs(task); + microblaze_unwind_inner(task, regs->pc, regs->r1, + regs->r15, trace); + } else { + struct thread_info *thread_info = + (struct thread_info *)(task->stack); + const struct cpu_context *cpu_context = + &thread_info->cpu_context; + + microblaze_unwind_inner(task, + (unsigned long) &_switch_to, + cpu_context->r1, + cpu_context->r15, trace); + } + } else { + unsigned long pc, fp; + + __asm__ __volatile__ ("or %0, r1, r0" : "=r" (fp)); + + __asm__ __volatile__ ( + "brlid %0, 0f;" + "nop;" + "0:" + : "=r" (pc) + ); + + /* Since we are not a leaf function, use leaf_return = 0 */ + microblaze_unwind_inner(current, pc, fp, 0, trace); + } +} + diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S index db72d7124602..a09f2962fbec 100644 --- a/arch/microblaze/kernel/vmlinux.lds.S +++ b/arch/microblaze/kernel/vmlinux.lds.S @@ -10,7 +10,7 @@ OUTPUT_FORMAT("elf32-microblaze", "elf32-microblaze", "elf32-microblaze") OUTPUT_ARCH(microblaze) -ENTRY(_start) +ENTRY(microblaze_start) #include <asm/page.h> #include <asm-generic/vmlinux.lds.h> @@ -20,7 +20,7 @@ jiffies = jiffies_64 + 4; SECTIONS { . = CONFIG_KERNEL_START; - _start = CONFIG_KERNEL_BASE_ADDR; + microblaze_start = CONFIG_KERNEL_BASE_ADDR; .text : AT(ADDR(.text) - LOAD_OFFSET) { _text = . ; _stext = . ; @@ -55,7 +55,7 @@ SECTIONS { */ .sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) { _ssrw = .; - . = ALIGN(4096); /* page aligned when MMU used - origin 0x8 */ + . = ALIGN(PAGE_SIZE); /* page aligned when MMU used */ *(.sdata2) . = ALIGN(8); _essrw = .; @@ -70,7 +70,7 @@ SECTIONS { /* Reserve some low RAM for r0 based memory references */ . = ALIGN(0x4) ; r0_ram = . ; - . = . + 4096; /* a page should be enough */ + . = . + PAGE_SIZE; /* a page should be enough */ /* Under the microblaze ABI, .sdata and .sbss must be contiguous */ . = ALIGN(8); @@ -120,7 +120,7 @@ SECTIONS { __init_end_before_initramfs = .; - .init.ramfs ALIGN(4096) : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { + .init.ramfs ALIGN(PAGE_SIZE) : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { __initramfs_start = .; *(.init.ramfs) __initramfs_end = .; @@ -132,11 +132,11 @@ SECTIONS { * so that __init_end == __bss_start. This will make image.elf * consistent with the image.bin */ - /* . = ALIGN(4096); */ + /* . = ALIGN(PAGE_SIZE); */ } __init_end = .; - .bss ALIGN (4096) : AT(ADDR(.bss) - LOAD_OFFSET) { + .bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) - LOAD_OFFSET) { /* page aligned when MMU used */ __bss_start = . ; *(.bss*) @@ -145,7 +145,7 @@ SECTIONS { __bss_stop = . ; _ebss = . ; } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); _end = .; DISCARDS diff --git a/arch/microblaze/mm/fault.c b/arch/microblaze/mm/fault.c index bab922993185..57bd2a09610c 100644 --- a/arch/microblaze/mm/fault.c +++ b/arch/microblaze/mm/fault.c @@ -37,10 +37,6 @@ #include <linux/uaccess.h> #include <asm/exceptions.h> -#if defined(CONFIG_KGDB) -int debugger_kernel_faults = 1; -#endif - static unsigned long pte_misses; /* updated by do_page_fault() */ static unsigned long pte_errors; /* updated by do_page_fault() */ @@ -81,10 +77,6 @@ void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig) } /* kernel has accessed a bad area */ -#if defined(CONFIG_KGDB) - if (debugger_kernel_faults) - debugger(regs); -#endif die("kernel access of bad area", regs, sig); } @@ -115,13 +107,6 @@ void do_page_fault(struct pt_regs *regs, unsigned long address, if ((error_code & 0x13) == 0x13 || (error_code & 0x11) == 0x11) is_write = 0; -#if defined(CONFIG_KGDB) - if (debugger_fault_handler && regs->trap == 0x300) { - debugger_fault_handler(regs); - return; - } -#endif /* CONFIG_KGDB */ - if (unlikely(in_atomic() || !mm)) { if (kernel_mode(regs)) goto bad_area_nosemaphore; @@ -226,7 +211,6 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ -survive: fault = handle_mm_fault(mm, vma, address, is_write ? FAULT_FLAG_WRITE : 0); if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index db5934989926..65eb00419d19 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -134,13 +134,8 @@ void __init setup_memory(void) * for 4GB of memory, using 4kB pages), plus 1 page * (in case the address isn't page-aligned). */ -#ifndef CONFIG_MMU - map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)klimit)), - min_low_pfn, max_low_pfn); -#else - map_size = init_bootmem_node(&contig_page_data, + map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn); -#endif memblock_reserve(PFN_UP(TOPHYS((u32)klimit)) << PAGE_SHIFT, map_size); /* free bootmem is whole main memory */ |