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authorMichal Marek <mmarek@suse.cz>2010-10-12 15:09:06 +0200
committerMichal Marek <mmarek@suse.cz>2010-10-12 15:09:06 +0200
commit239060b93bb30a4ad55f1ecaa512464a035cc5ba (patch)
tree77f79810e57d4fc24356eca0cd6db463e8994128 /arch/microblaze
parent1408b15b98635a13bad2e2a50b3c2ae2ccdf625b (diff)
parente9203c988234aa512bd45ca32b52e21c7bbfc414 (diff)
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')
-rw-r--r--arch/microblaze/Kconfig51
-rw-r--r--arch/microblaze/Kconfig.debug1
-rw-r--r--arch/microblaze/Makefile2
-rw-r--r--arch/microblaze/boot/Makefile11
-rw-r--r--arch/microblaze/configs/mmu_defconfig842
-rw-r--r--arch/microblaze/configs/nommu_defconfig849
-rw-r--r--arch/microblaze/include/asm/cacheflush.h18
-rw-r--r--arch/microblaze/include/asm/dma-mapping.h12
-rw-r--r--arch/microblaze/include/asm/elf.h2
-rw-r--r--arch/microblaze/include/asm/exceptions.h21
-rw-r--r--arch/microblaze/include/asm/irq.h24
-rw-r--r--arch/microblaze/include/asm/kgdb.h28
-rw-r--r--arch/microblaze/include/asm/local64.h1
-rw-r--r--arch/microblaze/include/asm/of_device.h44
-rw-r--r--arch/microblaze/include/asm/of_platform.h54
-rw-r--r--arch/microblaze/include/asm/page.h21
-rw-r--r--arch/microblaze/include/asm/pci-bridge.h5
-rw-r--r--arch/microblaze/include/asm/prom.h115
-rw-r--r--arch/microblaze/include/asm/pvr.h2
-rw-r--r--arch/microblaze/include/asm/scatterlist.h2
-rw-r--r--arch/microblaze/include/asm/setup.h2
-rw-r--r--arch/microblaze/include/asm/system.h4
-rw-r--r--arch/microblaze/include/asm/topology.h10
-rw-r--r--arch/microblaze/include/asm/uaccess.h4
-rw-r--r--arch/microblaze/include/asm/unwind.h29
-rw-r--r--arch/microblaze/kernel/Makefile7
-rw-r--r--arch/microblaze/kernel/cpu/mb.c1
-rw-r--r--arch/microblaze/kernel/entry-nommu.S28
-rw-r--r--arch/microblaze/kernel/entry.S607
-rw-r--r--arch/microblaze/kernel/exceptions.c9
-rw-r--r--arch/microblaze/kernel/head.S4
-rw-r--r--arch/microblaze/kernel/hw_exception_handler.S4
-rw-r--r--arch/microblaze/kernel/irq.c16
-rw-r--r--arch/microblaze/kernel/kgdb.c147
-rw-r--r--arch/microblaze/kernel/misc.S2
-rw-r--r--arch/microblaze/kernel/of_device.c112
-rw-r--r--arch/microblaze/kernel/of_platform.c200
-rw-r--r--arch/microblaze/kernel/process.c7
-rw-r--r--arch/microblaze/kernel/prom_parse.c877
-rw-r--r--arch/microblaze/kernel/ptrace.c17
-rw-r--r--arch/microblaze/kernel/reset.c12
-rw-r--r--arch/microblaze/kernel/setup.c6
-rw-r--r--arch/microblaze/kernel/stacktrace.c44
-rw-r--r--arch/microblaze/kernel/sys_microblaze.c2
-rw-r--r--arch/microblaze/kernel/timer.c24
-rw-r--r--arch/microblaze/kernel/traps.c91
-rw-r--r--arch/microblaze/kernel/unwind.c318
-rw-r--r--arch/microblaze/kernel/vmlinux.lds.S16
-rw-r--r--arch/microblaze/mm/fault.c16
-rw-r--r--arch/microblaze/mm/init.c7
50 files changed, 1007 insertions, 3721 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 0c5f43728a7..44b4b76d7ec 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 9dc708a7f70..e6e5e0da28c 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 72f6e858374..592c7079de8 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 57f50c2371c..be01d78750d 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
$(call if_changed,cp,.unstrip)
diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig
index 3c91cf6192c..8b422b12ef7 100644
--- a/arch/microblaze/configs/mmu_defconfig
+++ b/arch/microblaze/configs/mmu_defconfig
@@ -1,910 +1,70 @@
-#
-# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.34-rc6
-# Thu May 6 11:22:14 2010
-#
-CONFIG_MICROBLAZE=y
-# CONFIG_SWAP is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
-CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_TIME=y
-# CONFIG_GENERIC_TIME_VSYSCALL is not set
-CONFIG_GENERIC_CLOCKEVENTS=y
-CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
-CONFIG_GENERIC_GPIO=y
-CONFIG_GENERIC_CSUM=y
-CONFIG_STACKTRACE_SUPPORT=y
-CONFIG_LOCKDEP_SUPPORT=y
-CONFIG_HAVE_LATENCYTOP_SUPPORT=y
-CONFIG_DTC=y
-CONFIG_DEFCONFIG_LIST="/lib/modules/$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 dd3a494257f..ebc143c5368 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 a6edd356cd0..7ebd955460d 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 18b3731c850..8fbb0ec1023 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 7d4acf2b278..732caf1be74 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 4c7b5d037c8..6479097b802 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 31a35c33df6..ec5583d6111 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 00000000000..78b17d40b23
--- /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 00000000000..36c93b5cc23
--- /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 73cb9804098..00000000000
--- 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 37491276c6c..00000000000
--- 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 464ff32bee3..cf377d91da7 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 0c77cda9f5d..0c68764ab54 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 e7d67a329bd..101fa098f62 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 e38abc7714b..9578666e98b 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 dc4a8900cc8..35d786fe93a 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 7f31394985e..782b5c89248 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 48c4f0335e3..e6a2284571d 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 96bcea5a992..5428f333a02 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 26460d15b33..d840f4a2d3c 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 00000000000..d248b7de4b1
--- /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 e51bc152082..f0cb5c26c81 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 4216eb1eaa3..7086e356428 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 8cc18cd2cce..ca84368570b 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 c0ede25c5b9..304882e5645 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 02cbdfe5aa8..b98ee8d0c1c 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 1bf73988826..42434008209 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 995a2123635..781195438ee 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 8f120aca123..a9345fb4906 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 00000000000..bfc006b7f2d
--- /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 0fb5fc6c1fc..206da3da361 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 b372787886e..00000000000
--- 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 ccf6f4257f4..00000000000
--- 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 09bed44dfcd..ba7c4b16ed3 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 bf7e6c27e31..d33ba17601f 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 a4a7770c614..dc03ffc8174 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 a1721a33042..bd8ccab5cef 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 17c98dbcec8..f5f76884235 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 123692f2264..84bc6686102 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 f4e00b7f125..6abab6ebedb 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 ed61b2f1771..b1380ae93ae 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 75e49202a5e..ba034d421ec 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 00000000000..fefac5c3358
--- /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 =
+ &microblaze_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 db72d712460..a09f2962fbe 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 bab92299318..57bd2a09610 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 db593498992..65eb00419d1 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 */