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-rw-r--r--arch/microblaze/Kconfig141
-rw-r--r--arch/microblaze/Kconfig.debug26
-rw-r--r--arch/microblaze/Makefile69
-rw-r--r--arch/microblaze/boot/Makefile17
-rw-r--r--arch/microblaze/configs/nommu_defconfig804
-rw-r--r--arch/microblaze/include/asm/Kbuild26
-rw-r--r--arch/microblaze/include/asm/atomic.h123
-rw-r--r--arch/microblaze/include/asm/auxvec.h0
-rw-r--r--arch/microblaze/include/asm/bitops.h27
-rw-r--r--arch/microblaze/include/asm/bug.h15
-rw-r--r--arch/microblaze/include/asm/bugs.h17
-rw-r--r--arch/microblaze/include/asm/byteorder.h6
-rw-r--r--arch/microblaze/include/asm/cache.h45
-rw-r--r--arch/microblaze/include/asm/cacheflush.h85
-rw-r--r--arch/microblaze/include/asm/checksum.h98
-rw-r--r--arch/microblaze/include/asm/clinkage.h1
-rw-r--r--arch/microblaze/include/asm/cpuinfo.h102
-rw-r--r--arch/microblaze/include/asm/cputable.h0
-rw-r--r--arch/microblaze/include/asm/cputime.h1
-rw-r--r--arch/microblaze/include/asm/current.h21
-rw-r--r--arch/microblaze/include/asm/delay.h72
-rw-r--r--arch/microblaze/include/asm/device.h21
-rw-r--r--arch/microblaze/include/asm/div64.h1
-rw-r--r--arch/microblaze/include/asm/dma-mapping.h129
-rw-r--r--arch/microblaze/include/asm/dma.h16
-rw-r--r--arch/microblaze/include/asm/elf.h30
-rw-r--r--arch/microblaze/include/asm/emergency-restart.h1
-rw-r--r--arch/microblaze/include/asm/entry.h35
-rw-r--r--arch/microblaze/include/asm/errno.h1
-rw-r--r--arch/microblaze/include/asm/exceptions.h96
-rw-r--r--arch/microblaze/include/asm/fcntl.h1
-rw-r--r--arch/microblaze/include/asm/flat.h90
-rw-r--r--arch/microblaze/include/asm/futex.h1
-rw-r--r--arch/microblaze/include/asm/gpio.h56
-rw-r--r--arch/microblaze/include/asm/hardirq.h29
-rw-r--r--arch/microblaze/include/asm/hw_irq.h0
-rw-r--r--arch/microblaze/include/asm/io.h209
-rw-r--r--arch/microblaze/include/asm/ioctl.h1
-rw-r--r--arch/microblaze/include/asm/ioctls.h91
-rw-r--r--arch/microblaze/include/asm/ipc.h1
-rw-r--r--arch/microblaze/include/asm/ipcbuf.h36
-rw-r--r--arch/microblaze/include/asm/irq.h47
-rw-r--r--arch/microblaze/include/asm/irq_regs.h1
-rw-r--r--arch/microblaze/include/asm/irqflags.h123
-rw-r--r--arch/microblaze/include/asm/kdebug.h1
-rw-r--r--arch/microblaze/include/asm/kmap_types.h29
-rw-r--r--arch/microblaze/include/asm/linkage.h15
-rw-r--r--arch/microblaze/include/asm/lmb.h17
-rw-r--r--arch/microblaze/include/asm/local.h1
-rw-r--r--arch/microblaze/include/asm/mman.h25
-rw-r--r--arch/microblaze/include/asm/mmu.h19
-rw-r--r--arch/microblaze/include/asm/mmu_context.h21
-rw-r--r--arch/microblaze/include/asm/module.h37
-rw-r--r--arch/microblaze/include/asm/msgbuf.h31
-rw-r--r--arch/microblaze/include/asm/mutex.h1
-rw-r--r--arch/microblaze/include/asm/namei.h22
-rw-r--r--arch/microblaze/include/asm/of_device.h45
-rw-r--r--arch/microblaze/include/asm/of_platform.h64
-rw-r--r--arch/microblaze/include/asm/page.h140
-rw-r--r--arch/microblaze/include/asm/param.h30
-rw-r--r--arch/microblaze/include/asm/pci-bridge.h1
-rw-r--r--arch/microblaze/include/asm/pci.h1
-rw-r--r--arch/microblaze/include/asm/percpu.h1
-rw-r--r--arch/microblaze/include/asm/pgalloc.h14
-rw-r--r--arch/microblaze/include/asm/pgtable.h54
-rw-r--r--arch/microblaze/include/asm/poll.h1
-rw-r--r--arch/microblaze/include/asm/posix_types.h73
-rw-r--r--arch/microblaze/include/asm/processor.h93
-rw-r--r--arch/microblaze/include/asm/prom.h313
-rw-r--r--arch/microblaze/include/asm/ptrace.h68
-rw-r--r--arch/microblaze/include/asm/pvr.h209
-rw-r--r--arch/microblaze/include/asm/registers.h33
-rw-r--r--arch/microblaze/include/asm/resource.h1
-rw-r--r--arch/microblaze/include/asm/scatterlist.h28
-rw-r--r--arch/microblaze/include/asm/sections.h25
-rw-r--r--arch/microblaze/include/asm/segment.h43
-rw-r--r--arch/microblaze/include/asm/selfmod.h24
-rw-r--r--arch/microblaze/include/asm/sembuf.h34
-rw-r--r--arch/microblaze/include/asm/serial.h14
-rw-r--r--arch/microblaze/include/asm/setup.h44
-rw-r--r--arch/microblaze/include/asm/shmbuf.h42
-rw-r--r--arch/microblaze/include/asm/shmparam.h6
-rw-r--r--arch/microblaze/include/asm/sigcontext.h20
-rw-r--r--arch/microblaze/include/asm/siginfo.h15
-rw-r--r--arch/microblaze/include/asm/signal.h165
-rw-r--r--arch/microblaze/include/asm/socket.h66
-rw-r--r--arch/microblaze/include/asm/sockios.h23
-rw-r--r--arch/microblaze/include/asm/stat.h73
-rw-r--r--arch/microblaze/include/asm/statfs.h1
-rw-r--r--arch/microblaze/include/asm/string.h24
-rw-r--r--arch/microblaze/include/asm/swab.h8
-rw-r--r--arch/microblaze/include/asm/syscalls.h45
-rw-r--r--arch/microblaze/include/asm/system.h91
-rw-r--r--arch/microblaze/include/asm/termbits.h203
-rw-r--r--arch/microblaze/include/asm/termios.h88
-rw-r--r--arch/microblaze/include/asm/thread_info.h159
-rw-r--r--arch/microblaze/include/asm/timex.h18
-rw-r--r--arch/microblaze/include/asm/tlb.h16
-rw-r--r--arch/microblaze/include/asm/tlbflush.h20
-rw-r--r--arch/microblaze/include/asm/topology.h11
-rw-r--r--arch/microblaze/include/asm/types.h38
-rw-r--r--arch/microblaze/include/asm/uaccess.h134
-rw-r--r--arch/microblaze/include/asm/ucontext.h22
-rw-r--r--arch/microblaze/include/asm/unaligned.h22
-rw-r--r--arch/microblaze/include/asm/unistd.h421
-rw-r--r--arch/microblaze/include/asm/user.h0
-rw-r--r--arch/microblaze/include/asm/vga.h0
-rw-r--r--arch/microblaze/include/asm/xor.h1
-rw-r--r--arch/microblaze/kernel/Makefile19
-rw-r--r--arch/microblaze/kernel/asm-offsets.c115
-rw-r--r--arch/microblaze/kernel/cpu/Makefile8
-rw-r--r--arch/microblaze/kernel/cpu/cache.c258
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c101
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo-static.c144
-rw-r--r--arch/microblaze/kernel/cpu/cpuinfo.c86
-rw-r--r--arch/microblaze/kernel/cpu/mb.c148
-rw-r--r--arch/microblaze/kernel/cpu/pvr.c81
-rw-r--r--arch/microblaze/kernel/early_printk.c107
-rw-r--r--arch/microblaze/kernel/entry-nommu.S596
-rw-r--r--arch/microblaze/kernel/exceptions.c124
-rw-r--r--arch/microblaze/kernel/head.S56
-rw-r--r--arch/microblaze/kernel/heartbeat.c67
-rw-r--r--arch/microblaze/kernel/hw_exception_handler.S458
-rw-r--r--arch/microblaze/kernel/init_task.c29
-rw-r--r--arch/microblaze/kernel/intc.c172
-rw-r--r--arch/microblaze/kernel/irq.c104
-rw-r--r--arch/microblaze/kernel/microblaze_ksyms.c47
-rw-r--r--arch/microblaze/kernel/module.c151
-rw-r--r--arch/microblaze/kernel/of_device.c115
-rw-r--r--arch/microblaze/kernel/of_platform.c201
-rw-r--r--arch/microblaze/kernel/process.c187
-rw-r--r--arch/microblaze/kernel/prom.c1147
-rw-r--r--arch/microblaze/kernel/prom_parse.c1025
-rw-r--r--arch/microblaze/kernel/ptrace.c182
-rw-r--r--arch/microblaze/kernel/selfmod.c81
-rw-r--r--arch/microblaze/kernel/setup.c199
-rw-r--r--arch/microblaze/kernel/signal.c538
-rw-r--r--arch/microblaze/kernel/sys_microblaze.c227
-rw-r--r--arch/microblaze/kernel/syscall_table.S365
-rw-r--r--arch/microblaze/kernel/timer.c262
-rw-r--r--arch/microblaze/kernel/traps.c107
-rw-r--r--arch/microblaze/kernel/vmlinux.lds.S163
-rw-r--r--arch/microblaze/lib/Makefile13
-rw-r--r--arch/microblaze/lib/checksum.c163
-rw-r--r--arch/microblaze/lib/fastcopy.S662
-rw-r--r--arch/microblaze/lib/memcpy.c161
-rw-r--r--arch/microblaze/lib/memmove.c175
-rw-r--r--arch/microblaze/lib/memset.c82
-rw-r--r--arch/microblaze/lib/uaccess.c41
-rw-r--r--arch/microblaze/mm/Makefile5
-rw-r--r--arch/microblaze/mm/init.c201
-rw-r--r--arch/microblaze/platform/Kconfig.platform85
-rw-r--r--arch/microblaze/platform/Makefile6
-rw-r--r--arch/microblaze/platform/generic/Kconfig.auto62
-rw-r--r--arch/microblaze/platform/generic/Makefile3
-rw-r--r--arch/microblaze/platform/generic/system.dts332
-rw-r--r--arch/microblaze/platform/platform.c31
157 files changed, 15708 insertions, 0 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
new file mode 100644
index 000000000000..8cc312b5d4dc
--- /dev/null
+++ b/arch/microblaze/Kconfig
@@ -0,0 +1,141 @@
1# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3
4mainmenu "Linux/Microblaze Kernel Configuration"
5
6config MICROBLAZE
7 def_bool y
8 select HAVE_LMB
9
10config SWAP
11 def_bool n
12
13config RWSEM_GENERIC_SPINLOCK
14 def_bool y
15
16config RWSEM_XCHGADD_ALGORITHM
17 bool
18
19config ARCH_HAS_ILOG2_U32
20 def_bool n
21
22config ARCH_HAS_ILOG2_U64
23 def_bool n
24
25config GENERIC_FIND_NEXT_BIT
26 def_bool y
27
28config GENERIC_HWEIGHT
29 def_bool y
30
31config GENERIC_HARDIRQS
32 def_bool y
33
34config GENERIC_IRQ_PROBE
35 def_bool y
36
37config GENERIC_CALIBRATE_DELAY
38 def_bool y
39
40config GENERIC_TIME
41 def_bool y
42
43config GENERIC_TIME_VSYSCALL
44 def_bool n
45
46config GENERIC_CLOCKEVENTS
47 def_bool y
48
49config GENERIC_HARDIRQS_NO__DO_IRQ
50 def_bool y
51
52config PCI
53 depends on !MMU
54 def_bool n
55
56config NO_DMA
57 depends on !MMU
58 def_bool n
59
60source "init/Kconfig"
61
62source "kernel/Kconfig.freezer"
63
64source "arch/microblaze/platform/Kconfig.platform"
65
66menu "Processor type and features"
67
68source kernel/time/Kconfig
69
70source "kernel/Kconfig.preempt"
71
72source "kernel/Kconfig.hz"
73
74config MMU
75 def_bool n
76
77config NO_MMU
78 bool
79 depends on !MMU
80 default y
81
82comment "Boot options"
83
84config CMDLINE_BOOL
85 bool "Default bootloader kernel arguments"
86
87config CMDLINE
88 string "Default kernel command string"
89 depends on CMDLINE_BOOL
90 default "console=ttyUL0,115200"
91 help
92 On some architectures there is currently no way for the boot loader
93 to pass arguments to the kernel. For these architectures, you should
94 supply some command-line options at build time by entering them
95 here.
96
97config CMDLINE_FORCE
98 bool "Force default kernel command string"
99 depends on CMDLINE_BOOL
100 default n
101 help
102 Set this to have arguments from the default kernel command string
103 override those passed by the boot loader.
104
105config OF
106 def_bool y
107
108config OF_DEVICE
109 def_bool y
110
111config PROC_DEVICETREE
112 bool "Support for device tree in /proc"
113 depends on PROC_FS
114 help
115 This option adds a device-tree directory under /proc which contains
116 an image of the device tree that the kernel copies from Open
117 Firmware or other boot firmware. If unsure, say Y here.
118
119endmenu
120
121source "mm/Kconfig"
122
123menu "Exectuable file formats"
124
125source "fs/Kconfig.binfmt"
126
127endmenu
128
129source "net/Kconfig"
130
131source "drivers/Kconfig"
132
133source "fs/Kconfig"
134
135source "arch/microblaze/Kconfig.debug"
136
137source "security/Kconfig"
138
139source "crypto/Kconfig"
140
141source "lib/Kconfig"
diff --git a/arch/microblaze/Kconfig.debug b/arch/microblaze/Kconfig.debug
new file mode 100644
index 000000000000..242cd35bdb4b
--- /dev/null
+++ b/arch/microblaze/Kconfig.debug
@@ -0,0 +1,26 @@
1# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3
4menu "Kernel hacking"
5
6source "lib/Kconfig.debug"
7
8config EARLY_PRINTK
9 bool "Early printk function for kernel"
10 default n
11 help
12 This option turns on/off early printk messages to console.
13 First Uartlite node is taken.
14
15config HEART_BEAT
16 bool "Heart beat function for kernel"
17 default n
18 help
19 This option turns on/off heart beat kernel functionality.
20 First GPIO node is taken.
21
22config DEBUG_BOOTMEM
23 depends on DEBUG_KERNEL
24 bool "Debug BOOTMEM initialization"
25
26endmenu
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
new file mode 100644
index 000000000000..0dcbb9832974
--- /dev/null
+++ b/arch/microblaze/Makefile
@@ -0,0 +1,69 @@
1UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
2
3# What CPU vesion are we building for, and crack it open
4# as major.minor.rev
5CPU_VER=$(subst ",,$(CONFIG_XILINX_MICROBLAZE0_HW_VER) )
6CPU_MAJOR=$(shell echo $(CPU_VER) | cut -d '.' -f 1)
7CPU_MINOR=$(shell echo $(CPU_VER) | cut -d '.' -f 2)
8CPU_REV=$(shell echo $(CPU_VER) | cut -d '.' -f 3)
9
10export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
11
12# Use cpu-related CONFIG_ vars to set compile options.
13
14# Work out HW multipler support. This is icky.
15# 1. Spartan2 has no HW multiplers.
16# 2. MicroBlaze v3.x always uses them, except in Spartan 2
17# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
18ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
19 ifeq ($(CPU_MAJOR),3)
20 CPUFLAGS-1 += -mno-xl-soft-mul
21 else
22 # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
23 CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
24 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
25 endif
26endif
27CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
28CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
29CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP) += -mxl-pattern-compare
30
31CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
32
33# The various CONFIG_XILINX cpu features options are integers 0/1/2...
34# rather than bools y/n
35CFLAGS += $(CPUFLAGS-1)
36CFLAGS += $(CPUFLAGS-2)
37
38# r31 holds current when in kernel mode
39CFLAGS += -ffixed-r31
40
41LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
42
43LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
44
45head-y := arch/microblaze/kernel/head.o
46libs-y += arch/microblaze/lib/ $(LIBGCC)
47core-y += arch/microblaze/kernel/ arch/microblaze/mm/ \
48 arch/microblaze/platform/
49
50boot := arch/$(ARCH)/boot
51
52# defines filename extension depending memory management type
53ifeq ($(CONFIG_MMU),)
54MMUEXT := -nommu
55endif
56export MMUEXT
57
58all: linux.bin
59
60archclean:
61 $(Q)$(MAKE) $(clean)=$(boot)
62
63linux.bin linux.bin.gz: vmlinux
64 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
65
66define archhelp
67 echo '* linux.bin - Create raw binary'
68 echo ' linux.bin.gz - Create compressed raw binary'
69endef
diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile
new file mode 100644
index 000000000000..844edf406d34
--- /dev/null
+++ b/arch/microblaze/boot/Makefile
@@ -0,0 +1,17 @@
1#
2# arch/microblaze/boot/Makefile
3#
4
5targets := linux.bin linux.bin.gz
6
7OBJCOPYFLAGS_linux.bin := -O binary
8
9$(obj)/linux.bin: vmlinux FORCE
10 $(call if_changed,objcopy)
11 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
12
13$(obj)/linux.bin.gz: $(obj)/linux.bin FORCE
14 $(call if_changed,gzip)
15 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
16
17clean-kernel += linux.bin linux.bin.gz
diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig
new file mode 100644
index 000000000000..beb7ecd72793
--- /dev/null
+++ b/arch/microblaze/configs/nommu_defconfig
@@ -0,0 +1,804 @@
1#
2# Automatically generated make config: don't edit
3# Linux kernel version: 2.6.29
4# Tue Mar 24 10:23:20 2009
5#
6CONFIG_MICROBLAZE=y
7# CONFIG_SWAP is not set
8CONFIG_RWSEM_GENERIC_SPINLOCK=y
9# CONFIG_ARCH_HAS_ILOG2_U32 is not set
10# CONFIG_ARCH_HAS_ILOG2_U64 is not set
11CONFIG_GENERIC_FIND_NEXT_BIT=y
12CONFIG_GENERIC_HWEIGHT=y
13CONFIG_GENERIC_HARDIRQS=y
14CONFIG_GENERIC_IRQ_PROBE=y
15CONFIG_GENERIC_CALIBRATE_DELAY=y
16CONFIG_GENERIC_TIME=y
17# CONFIG_GENERIC_TIME_VSYSCALL is not set
18CONFIG_GENERIC_CLOCKEVENTS=y
19CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
20# CONFIG_PCI is not set
21# CONFIG_NO_DMA is not set
22CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
23
24#
25# General setup
26#
27CONFIG_EXPERIMENTAL=y
28CONFIG_BROKEN_ON_SMP=y
29CONFIG_INIT_ENV_ARG_LIMIT=32
30CONFIG_LOCALVERSION=""
31CONFIG_LOCALVERSION_AUTO=y
32CONFIG_SYSVIPC=y
33CONFIG_SYSVIPC_SYSCTL=y
34CONFIG_POSIX_MQUEUE=y
35CONFIG_BSD_PROCESS_ACCT=y
36CONFIG_BSD_PROCESS_ACCT_V3=y
37# CONFIG_TASKSTATS is not set
38# CONFIG_AUDIT is not set
39
40#
41# RCU Subsystem
42#
43CONFIG_CLASSIC_RCU=y
44# CONFIG_TREE_RCU is not set
45# CONFIG_PREEMPT_RCU is not set
46# CONFIG_TREE_RCU_TRACE is not set
47# CONFIG_PREEMPT_RCU_TRACE is not set
48CONFIG_IKCONFIG=y
49CONFIG_IKCONFIG_PROC=y
50CONFIG_LOG_BUF_SHIFT=17
51# CONFIG_GROUP_SCHED is not set
52# CONFIG_CGROUPS is not set
53CONFIG_SYSFS_DEPRECATED=y
54CONFIG_SYSFS_DEPRECATED_V2=y
55# CONFIG_RELAY is not set
56# CONFIG_NAMESPACES is not set
57# CONFIG_BLK_DEV_INITRD is not set
58CONFIG_CC_OPTIMIZE_FOR_SIZE=y
59CONFIG_SYSCTL=y
60CONFIG_ANON_INODES=y
61CONFIG_EMBEDDED=y
62CONFIG_SYSCTL_SYSCALL=y
63CONFIG_KALLSYMS=y
64CONFIG_KALLSYMS_ALL=y
65CONFIG_KALLSYMS_EXTRA_PASS=y
66# CONFIG_HOTPLUG is not set
67CONFIG_PRINTK=y
68CONFIG_BUG=y
69CONFIG_ELF_CORE=y
70# CONFIG_BASE_FULL is not set
71CONFIG_FUTEX=y
72CONFIG_EPOLL=y
73CONFIG_SIGNALFD=y
74CONFIG_TIMERFD=y
75CONFIG_EVENTFD=y
76CONFIG_AIO=y
77CONFIG_VM_EVENT_COUNTERS=y
78CONFIG_COMPAT_BRK=y
79CONFIG_SLAB=y
80# CONFIG_SLUB is not set
81# CONFIG_SLOB is not set
82# CONFIG_PROFILING is not set
83# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
84CONFIG_SLABINFO=y
85CONFIG_RT_MUTEXES=y
86CONFIG_BASE_SMALL=1
87CONFIG_MODULES=y
88# CONFIG_MODULE_FORCE_LOAD is not set
89CONFIG_MODULE_UNLOAD=y
90# CONFIG_MODULE_FORCE_UNLOAD is not set
91# CONFIG_MODVERSIONS is not set
92# CONFIG_MODULE_SRCVERSION_ALL is not set
93CONFIG_BLOCK=y
94# CONFIG_LBD is not set
95# CONFIG_BLK_DEV_IO_TRACE is not set
96# CONFIG_BLK_DEV_BSG is not set
97# CONFIG_BLK_DEV_INTEGRITY is not set
98
99#
100# IO Schedulers
101#
102CONFIG_IOSCHED_NOOP=y
103CONFIG_IOSCHED_AS=y
104CONFIG_IOSCHED_DEADLINE=y
105CONFIG_IOSCHED_CFQ=y
106# CONFIG_DEFAULT_AS is not set
107# CONFIG_DEFAULT_DEADLINE is not set
108CONFIG_DEFAULT_CFQ=y
109# CONFIG_DEFAULT_NOOP is not set
110CONFIG_DEFAULT_IOSCHED="cfq"
111# CONFIG_FREEZER is not set
112
113#
114# Platform options
115#
116CONFIG_PLATFORM_GENERIC=y
117# CONFIG_SELFMOD is not set
118# CONFIG_OPT_LIB_FUNCTION is not set
119# CONFIG_ALLOW_EDIT_AUTO is not set
120CONFIG_KERNEL_BASE_ADDR=0x90000000
121CONFIG_XILINX_MICROBLAZE0_FAMILY="virtex5"
122CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1
123CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1
124CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1
125CONFIG_XILINX_MICROBLAZE0_USE_DIV=1
126CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=2
127CONFIG_XILINX_MICROBLAZE0_USE_FPU=2
128CONFIG_XILINX_MICROBLAZE0_HW_VER="7.10.d"
129
130#
131# Processor type and features
132#
133CONFIG_TICK_ONESHOT=y
134# CONFIG_NO_HZ is not set
135CONFIG_HIGH_RES_TIMERS=y
136CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
137CONFIG_PREEMPT_NONE=y
138# CONFIG_PREEMPT_VOLUNTARY is not set
139# CONFIG_PREEMPT is not set
140CONFIG_HZ_100=y
141# CONFIG_HZ_250 is not set
142# CONFIG_HZ_300 is not set
143# CONFIG_HZ_1000 is not set
144CONFIG_HZ=100
145CONFIG_SCHED_HRTICK=y
146# CONFIG_MMU is not set
147CONFIG_NO_MMU=y
148
149#
150# Boot options
151#
152CONFIG_CMDLINE_BOOL=y
153CONFIG_CMDLINE="console=ttyUL0,115200"
154# CONFIG_CMDLINE_FORCE is not set
155CONFIG_OF=y
156CONFIG_OF_DEVICE=y
157CONFIG_PROC_DEVICETREE=y
158CONFIG_SELECT_MEMORY_MODEL=y
159CONFIG_FLATMEM_MANUAL=y
160# CONFIG_DISCONTIGMEM_MANUAL is not set
161# CONFIG_SPARSEMEM_MANUAL is not set
162CONFIG_FLATMEM=y
163CONFIG_FLAT_NODE_MEM_MAP=y
164CONFIG_PAGEFLAGS_EXTENDED=y
165CONFIG_SPLIT_PTLOCK_CPUS=4
166# CONFIG_PHYS_ADDR_T_64BIT is not set
167CONFIG_ZONE_DMA_FLAG=0
168CONFIG_VIRT_TO_BUS=y
169
170#
171# Exectuable file formats
172#
173CONFIG_BINFMT_FLAT=y
174# CONFIG_BINFMT_ZFLAT is not set
175# CONFIG_BINFMT_SHARED_FLAT is not set
176# CONFIG_HAVE_AOUT is not set
177# CONFIG_BINFMT_MISC is not set
178CONFIG_NET=y
179
180#
181# Networking options
182#
183CONFIG_COMPAT_NET_DEV_OPS=y
184CONFIG_PACKET=y
185# CONFIG_PACKET_MMAP is not set
186CONFIG_UNIX=y
187CONFIG_XFRM=y
188# CONFIG_XFRM_USER is not set
189# CONFIG_XFRM_SUB_POLICY is not set
190# CONFIG_XFRM_MIGRATE is not set
191# CONFIG_XFRM_STATISTICS is not set
192# CONFIG_NET_KEY is not set
193CONFIG_INET=y
194# CONFIG_IP_MULTICAST is not set
195# CONFIG_IP_ADVANCED_ROUTER is not set
196CONFIG_IP_FIB_HASH=y
197# CONFIG_IP_PNP is not set
198# CONFIG_NET_IPIP is not set
199# CONFIG_NET_IPGRE is not set
200# CONFIG_ARPD is not set
201# CONFIG_SYN_COOKIES is not set
202# CONFIG_INET_AH is not set
203# CONFIG_INET_ESP is not set
204# CONFIG_INET_IPCOMP is not set
205# CONFIG_INET_XFRM_TUNNEL is not set
206# CONFIG_INET_TUNNEL is not set
207CONFIG_INET_XFRM_MODE_TRANSPORT=y
208CONFIG_INET_XFRM_MODE_TUNNEL=y
209CONFIG_INET_XFRM_MODE_BEET=y
210# CONFIG_INET_LRO is not set
211CONFIG_INET_DIAG=y
212CONFIG_INET_TCP_DIAG=y
213# CONFIG_TCP_CONG_ADVANCED is not set
214CONFIG_TCP_CONG_CUBIC=y
215CONFIG_DEFAULT_TCP_CONG="cubic"
216# CONFIG_TCP_MD5SIG is not set
217# CONFIG_IPV6 is not set
218# CONFIG_NETWORK_SECMARK is not set
219# CONFIG_NETFILTER is not set
220# CONFIG_IP_DCCP is not set
221# CONFIG_IP_SCTP is not set
222# CONFIG_TIPC is not set
223# CONFIG_ATM is not set
224# CONFIG_BRIDGE is not set
225# CONFIG_NET_DSA is not set
226# CONFIG_VLAN_8021Q is not set
227# CONFIG_DECNET is not set
228# CONFIG_LLC2 is not set
229# CONFIG_IPX is not set
230# CONFIG_ATALK is not set
231# CONFIG_X25 is not set
232# CONFIG_LAPB is not set
233# CONFIG_ECONET is not set
234# CONFIG_WAN_ROUTER is not set
235# CONFIG_NET_SCHED is not set
236# CONFIG_DCB is not set
237
238#
239# Network testing
240#
241# CONFIG_NET_PKTGEN is not set
242# CONFIG_HAMRADIO is not set
243# CONFIG_CAN is not set
244# CONFIG_IRDA is not set
245# CONFIG_BT is not set
246# CONFIG_AF_RXRPC is not set
247# CONFIG_PHONET is not set
248CONFIG_WIRELESS=y
249# CONFIG_CFG80211 is not set
250CONFIG_WIRELESS_OLD_REGULATORY=y
251# CONFIG_WIRELESS_EXT is not set
252# CONFIG_LIB80211 is not set
253# CONFIG_MAC80211 is not set
254# CONFIG_WIMAX is not set
255# CONFIG_RFKILL is not set
256# CONFIG_NET_9P is not set
257
258#
259# Device Drivers
260#
261
262#
263# Generic Driver Options
264#
265CONFIG_STANDALONE=y
266# CONFIG_PREVENT_FIRMWARE_BUILD is not set
267# CONFIG_DEBUG_DRIVER is not set
268# CONFIG_DEBUG_DEVRES is not set
269# CONFIG_SYS_HYPERVISOR is not set
270# CONFIG_CONNECTOR is not set
271CONFIG_MTD=y
272# CONFIG_MTD_DEBUG is not set
273CONFIG_MTD_CONCAT=y
274CONFIG_MTD_PARTITIONS=y
275# CONFIG_MTD_TESTS is not set
276# CONFIG_MTD_REDBOOT_PARTS is not set
277CONFIG_MTD_CMDLINE_PARTS=y
278# CONFIG_MTD_AR7_PARTS is not set
279
280#
281# User Modules And Translation Layers
282#
283CONFIG_MTD_CHAR=y
284CONFIG_MTD_BLKDEVS=y
285CONFIG_MTD_BLOCK=y
286# CONFIG_FTL is not set
287# CONFIG_NFTL is not set
288# CONFIG_INFTL is not set
289# CONFIG_RFD_FTL is not set
290# CONFIG_SSFDC is not set
291# CONFIG_MTD_OOPS is not set
292
293#
294# RAM/ROM/Flash chip drivers
295#
296CONFIG_MTD_CFI=y
297# CONFIG_MTD_JEDECPROBE is not set
298CONFIG_MTD_GEN_PROBE=y
299# CONFIG_MTD_CFI_ADV_OPTIONS is not set
300CONFIG_MTD_MAP_BANK_WIDTH_1=y
301CONFIG_MTD_MAP_BANK_WIDTH_2=y
302CONFIG_MTD_MAP_BANK_WIDTH_4=y
303# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
304# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
305# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
306CONFIG_MTD_CFI_I1=y
307CONFIG_MTD_CFI_I2=y
308# CONFIG_MTD_CFI_I4 is not set
309# CONFIG_MTD_CFI_I8 is not set
310CONFIG_MTD_CFI_INTELEXT=y
311CONFIG_MTD_CFI_AMDSTD=y
312# CONFIG_MTD_CFI_STAA is not set
313CONFIG_MTD_CFI_UTIL=y
314CONFIG_MTD_RAM=y
315# CONFIG_MTD_ROM is not set
316# CONFIG_MTD_ABSENT is not set
317
318#
319# Mapping drivers for chip access
320#
321# CONFIG_MTD_COMPLEX_MAPPINGS is not set
322# CONFIG_MTD_PHYSMAP is not set
323CONFIG_MTD_UCLINUX=y
324# CONFIG_MTD_PLATRAM is not set
325
326#
327# Self-contained MTD device drivers
328#
329# CONFIG_MTD_SLRAM is not set
330# CONFIG_MTD_PHRAM is not set
331# CONFIG_MTD_MTDRAM is not set
332# CONFIG_MTD_BLOCK2MTD is not set
333
334#
335# Disk-On-Chip Device Drivers
336#
337# CONFIG_MTD_DOC2000 is not set
338# CONFIG_MTD_DOC2001 is not set
339# CONFIG_MTD_DOC2001PLUS is not set
340# CONFIG_MTD_NAND is not set
341# CONFIG_MTD_ONENAND is not set
342
343#
344# LPDDR flash memory drivers
345#
346# CONFIG_MTD_LPDDR is not set
347
348#
349# UBI - Unsorted block images
350#
351# CONFIG_MTD_UBI is not set
352# CONFIG_PARPORT is not set
353CONFIG_BLK_DEV=y
354# CONFIG_BLK_DEV_COW_COMMON is not set
355# CONFIG_BLK_DEV_LOOP is not set
356CONFIG_BLK_DEV_NBD=y
357CONFIG_BLK_DEV_RAM=y
358CONFIG_BLK_DEV_RAM_COUNT=16
359CONFIG_BLK_DEV_RAM_SIZE=4096
360# CONFIG_BLK_DEV_XIP is not set
361# CONFIG_CDROM_PKTCDVD is not set
362# CONFIG_ATA_OVER_ETH is not set
363CONFIG_MISC_DEVICES=y
364# CONFIG_ENCLOSURE_SERVICES is not set
365# CONFIG_C2PORT is not set
366
367#
368# EEPROM support
369#
370# CONFIG_EEPROM_93CX6 is not set
371
372#
373# SCSI device support
374#
375# CONFIG_RAID_ATTRS is not set
376# CONFIG_SCSI is not set
377# CONFIG_SCSI_DMA is not set
378# CONFIG_SCSI_NETLINK is not set
379# CONFIG_ATA is not set
380# CONFIG_MD is not set
381CONFIG_NETDEVICES=y
382# CONFIG_DUMMY is not set
383# CONFIG_BONDING is not set
384# CONFIG_MACVLAN is not set
385# CONFIG_EQUALIZER is not set
386# CONFIG_TUN is not set
387# CONFIG_VETH is not set
388# CONFIG_PHYLIB is not set
389CONFIG_NET_ETHERNET=y
390# CONFIG_MII is not set
391# CONFIG_DNET is not set
392# CONFIG_IBM_NEW_EMAC_ZMII is not set
393# CONFIG_IBM_NEW_EMAC_RGMII is not set
394# CONFIG_IBM_NEW_EMAC_TAH is not set
395# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
396# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
397# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
398# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
399# CONFIG_B44 is not set
400CONFIG_NETDEV_1000=y
401CONFIG_NETDEV_10000=y
402
403#
404# Wireless LAN
405#
406# CONFIG_WLAN_PRE80211 is not set
407# CONFIG_WLAN_80211 is not set
408# CONFIG_IWLWIFI_LEDS is not set
409
410#
411# Enable WiMAX (Networking options) to see the WiMAX drivers
412#
413# CONFIG_WAN is not set
414# CONFIG_PPP is not set
415# CONFIG_SLIP is not set
416# CONFIG_NETCONSOLE is not set
417# CONFIG_NETPOLL is not set
418# CONFIG_NET_POLL_CONTROLLER is not set
419# CONFIG_ISDN is not set
420# CONFIG_PHONE is not set
421
422#
423# Input device support
424#
425# CONFIG_INPUT is not set
426
427#
428# Hardware I/O ports
429#
430# CONFIG_SERIO is not set
431# CONFIG_GAMEPORT is not set
432
433#
434# Character devices
435#
436# CONFIG_VT is not set
437CONFIG_DEVKMEM=y
438# CONFIG_SERIAL_NONSTANDARD is not set
439
440#
441# Serial drivers
442#
443# CONFIG_SERIAL_8250 is not set
444
445#
446# Non-8250 serial port support
447#
448CONFIG_SERIAL_UARTLITE=y
449CONFIG_SERIAL_UARTLITE_CONSOLE=y
450CONFIG_SERIAL_CORE=y
451CONFIG_SERIAL_CORE_CONSOLE=y
452CONFIG_UNIX98_PTYS=y
453# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
454CONFIG_LEGACY_PTYS=y
455CONFIG_LEGACY_PTY_COUNT=256
456# CONFIG_IPMI_HANDLER is not set
457CONFIG_HW_RANDOM=y
458# CONFIG_RTC is not set
459# CONFIG_GEN_RTC is not set
460# CONFIG_R3964 is not set
461# CONFIG_RAW_DRIVER is not set
462# CONFIG_TCG_TPM is not set
463# CONFIG_I2C is not set
464# CONFIG_SPI is not set
465# CONFIG_W1 is not set
466# CONFIG_POWER_SUPPLY is not set
467# CONFIG_HWMON is not set
468# CONFIG_THERMAL is not set
469# CONFIG_THERMAL_HWMON is not set
470# CONFIG_WATCHDOG is not set
471CONFIG_SSB_POSSIBLE=y
472
473#
474# Sonics Silicon Backplane
475#
476# CONFIG_SSB is not set
477
478#
479# Multifunction device drivers
480#
481# CONFIG_MFD_CORE is not set
482# CONFIG_MFD_SM501 is not set
483# CONFIG_HTC_PASIC3 is not set
484# CONFIG_MFD_TMIO is not set
485# CONFIG_REGULATOR is not set
486
487#
488# Multimedia devices
489#
490
491#
492# Multimedia core support
493#
494# CONFIG_VIDEO_DEV is not set
495# CONFIG_DVB_CORE is not set
496# CONFIG_VIDEO_MEDIA is not set
497
498#
499# Multimedia drivers
500#
501CONFIG_DAB=y
502
503#
504# Graphics support
505#
506# CONFIG_VGASTATE is not set
507CONFIG_VIDEO_OUTPUT_CONTROL=y
508# CONFIG_FB is not set
509# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
510
511#
512# Display device support
513#
514# CONFIG_DISPLAY_SUPPORT is not set
515# CONFIG_SOUND is not set
516CONFIG_USB_SUPPORT=y
517# CONFIG_USB_ARCH_HAS_HCD is not set
518# CONFIG_USB_ARCH_HAS_OHCI is not set
519# CONFIG_USB_ARCH_HAS_EHCI is not set
520# CONFIG_USB_OTG_WHITELIST is not set
521# CONFIG_USB_OTG_BLACKLIST_HUB is not set
522
523#
524# Enable Host or Gadget support to see Inventra options
525#
526
527#
528# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;
529#
530# CONFIG_USB_GADGET is not set
531
532#
533# OTG and related infrastructure
534#
535# CONFIG_MMC is not set
536# CONFIG_MEMSTICK is not set
537# CONFIG_NEW_LEDS is not set
538# CONFIG_ACCESSIBILITY is not set
539# CONFIG_RTC_CLASS is not set
540# CONFIG_DMADEVICES is not set
541# CONFIG_UIO is not set
542# CONFIG_STAGING is not set
543
544#
545# File systems
546#
547CONFIG_EXT2_FS=y
548# CONFIG_EXT2_FS_XATTR is not set
549# CONFIG_EXT3_FS is not set
550# CONFIG_EXT4_FS is not set
551# CONFIG_REISERFS_FS is not set
552# CONFIG_JFS_FS is not set
553CONFIG_FS_POSIX_ACL=y
554CONFIG_FILE_LOCKING=y
555# CONFIG_XFS_FS is not set
556# CONFIG_OCFS2_FS is not set
557# CONFIG_BTRFS_FS is not set
558# CONFIG_DNOTIFY is not set
559# CONFIG_INOTIFY is not set
560# CONFIG_QUOTA is not set
561# CONFIG_AUTOFS_FS is not set
562# CONFIG_AUTOFS4_FS is not set
563# CONFIG_FUSE_FS is not set
564
565#
566# CD-ROM/DVD Filesystems
567#
568# CONFIG_ISO9660_FS is not set
569# CONFIG_UDF_FS is not set
570
571#
572# DOS/FAT/NT Filesystems
573#
574# CONFIG_MSDOS_FS is not set
575# CONFIG_VFAT_FS is not set
576# CONFIG_NTFS_FS is not set
577
578#
579# Pseudo filesystems
580#
581CONFIG_PROC_FS=y
582CONFIG_PROC_SYSCTL=y
583CONFIG_SYSFS=y
584# CONFIG_TMPFS is not set
585# CONFIG_HUGETLB_PAGE is not set
586# CONFIG_CONFIGFS_FS is not set
587CONFIG_MISC_FILESYSTEMS=y
588# CONFIG_ADFS_FS is not set
589# CONFIG_AFFS_FS is not set
590# CONFIG_HFS_FS is not set
591# CONFIG_HFSPLUS_FS is not set
592# CONFIG_BEFS_FS is not set
593# CONFIG_BFS_FS is not set
594# CONFIG_EFS_FS is not set
595# CONFIG_JFFS2_FS is not set
596CONFIG_CRAMFS=y
597# CONFIG_SQUASHFS is not set
598# CONFIG_VXFS_FS is not set
599# CONFIG_MINIX_FS is not set
600# CONFIG_OMFS_FS is not set
601# CONFIG_HPFS_FS is not set
602# CONFIG_QNX4FS_FS is not set
603CONFIG_ROMFS_FS=y
604# CONFIG_SYSV_FS is not set
605# CONFIG_UFS_FS is not set
606CONFIG_NETWORK_FILESYSTEMS=y
607CONFIG_NFS_FS=y
608CONFIG_NFS_V3=y
609CONFIG_NFS_V3_ACL=y
610# CONFIG_NFS_V4 is not set
611# CONFIG_NFSD is not set
612CONFIG_LOCKD=y
613CONFIG_LOCKD_V4=y
614CONFIG_NFS_ACL_SUPPORT=y
615CONFIG_NFS_COMMON=y
616CONFIG_SUNRPC=y
617# CONFIG_SUNRPC_REGISTER_V4 is not set
618# CONFIG_RPCSEC_GSS_KRB5 is not set
619# CONFIG_RPCSEC_GSS_SPKM3 is not set
620# CONFIG_SMB_FS is not set
621# CONFIG_CIFS is not set
622# CONFIG_NCP_FS is not set
623# CONFIG_CODA_FS is not set
624# CONFIG_AFS_FS is not set
625
626#
627# Partition Types
628#
629# CONFIG_PARTITION_ADVANCED is not set
630CONFIG_MSDOS_PARTITION=y
631# CONFIG_NLS is not set
632# CONFIG_DLM is not set
633
634#
635# Kernel hacking
636#
637# CONFIG_PRINTK_TIME is not set
638CONFIG_ENABLE_WARN_DEPRECATED=y
639CONFIG_ENABLE_MUST_CHECK=y
640CONFIG_FRAME_WARN=1024
641# CONFIG_MAGIC_SYSRQ is not set
642CONFIG_UNUSED_SYMBOLS=y
643CONFIG_DEBUG_FS=y
644# CONFIG_HEADERS_CHECK is not set
645CONFIG_DEBUG_KERNEL=y
646CONFIG_DEBUG_SHIRQ=y
647CONFIG_DETECT_SOFTLOCKUP=y
648CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
649CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=1
650CONFIG_SCHED_DEBUG=y
651CONFIG_SCHEDSTATS=y
652CONFIG_TIMER_STATS=y
653CONFIG_DEBUG_OBJECTS=y
654CONFIG_DEBUG_OBJECTS_SELFTEST=y
655CONFIG_DEBUG_OBJECTS_FREE=y
656CONFIG_DEBUG_OBJECTS_TIMERS=y
657CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
658# CONFIG_DEBUG_SLAB is not set
659# CONFIG_DEBUG_RT_MUTEXES is not set
660# CONFIG_RT_MUTEX_TESTER is not set
661# CONFIG_DEBUG_SPINLOCK is not set
662# CONFIG_DEBUG_MUTEXES is not set
663# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
664# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
665# CONFIG_DEBUG_KOBJECT is not set
666CONFIG_DEBUG_INFO=y
667# CONFIG_DEBUG_VM is not set
668# CONFIG_DEBUG_NOMMU_REGIONS is not set
669# CONFIG_DEBUG_WRITECOUNT is not set
670# CONFIG_DEBUG_MEMORY_INIT is not set
671CONFIG_DEBUG_LIST=y
672CONFIG_DEBUG_SG=y
673# CONFIG_DEBUG_NOTIFIERS is not set
674# CONFIG_BOOT_PRINTK_DELAY is not set
675# CONFIG_RCU_TORTURE_TEST is not set
676# CONFIG_RCU_CPU_STALL_DETECTOR is not set
677# CONFIG_BACKTRACE_SELF_TEST is not set
678# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
679# CONFIG_FAULT_INJECTION is not set
680CONFIG_SYSCTL_SYSCALL_CHECK=y
681
682#
683# Tracers
684#
685# CONFIG_SCHED_TRACER is not set
686# CONFIG_CONTEXT_SWITCH_TRACER is not set
687# CONFIG_BOOT_TRACER is not set
688# CONFIG_TRACE_BRANCH_PROFILING is not set
689# CONFIG_DYNAMIC_PRINTK_DEBUG is not set
690# CONFIG_SAMPLES is not set
691CONFIG_EARLY_PRINTK=y
692CONFIG_HEART_BEAT=y
693# CONFIG_DEBUG_BOOTMEM is not set
694
695#
696# Security options
697#
698# CONFIG_KEYS is not set
699# CONFIG_SECURITY is not set
700# CONFIG_SECURITYFS is not set
701# CONFIG_SECURITY_FILE_CAPABILITIES is not set
702CONFIG_CRYPTO=y
703
704#
705# Crypto core or helper
706#
707# CONFIG_CRYPTO_FIPS is not set
708# CONFIG_CRYPTO_MANAGER is not set
709# CONFIG_CRYPTO_MANAGER2 is not set
710# CONFIG_CRYPTO_GF128MUL is not set
711# CONFIG_CRYPTO_NULL is not set
712# CONFIG_CRYPTO_CRYPTD is not set
713# CONFIG_CRYPTO_AUTHENC is not set
714# CONFIG_CRYPTO_TEST is not set
715
716#
717# Authenticated Encryption with Associated Data
718#
719# CONFIG_CRYPTO_CCM is not set
720# CONFIG_CRYPTO_GCM is not set
721# CONFIG_CRYPTO_SEQIV is not set
722
723#
724# Block modes
725#
726# CONFIG_CRYPTO_CBC is not set
727# CONFIG_CRYPTO_CTR is not set
728# CONFIG_CRYPTO_CTS is not set
729# CONFIG_CRYPTO_ECB is not set
730# CONFIG_CRYPTO_LRW is not set
731# CONFIG_CRYPTO_PCBC is not set
732# CONFIG_CRYPTO_XTS is not set
733
734#
735# Hash modes
736#
737# CONFIG_CRYPTO_HMAC is not set
738# CONFIG_CRYPTO_XCBC is not set
739
740#
741# Digest
742#
743# CONFIG_CRYPTO_CRC32C is not set
744# CONFIG_CRYPTO_MD4 is not set
745# CONFIG_CRYPTO_MD5 is not set
746# CONFIG_CRYPTO_MICHAEL_MIC is not set
747# CONFIG_CRYPTO_RMD128 is not set
748# CONFIG_CRYPTO_RMD160 is not set
749# CONFIG_CRYPTO_RMD256 is not set
750# CONFIG_CRYPTO_RMD320 is not set
751# CONFIG_CRYPTO_SHA1 is not set
752# CONFIG_CRYPTO_SHA256 is not set
753# CONFIG_CRYPTO_SHA512 is not set
754# CONFIG_CRYPTO_TGR192 is not set
755# CONFIG_CRYPTO_WP512 is not set
756
757#
758# Ciphers
759#
760# CONFIG_CRYPTO_AES is not set
761# CONFIG_CRYPTO_ANUBIS is not set
762# CONFIG_CRYPTO_ARC4 is not set
763# CONFIG_CRYPTO_BLOWFISH is not set
764# CONFIG_CRYPTO_CAMELLIA is not set
765# CONFIG_CRYPTO_CAST5 is not set
766# CONFIG_CRYPTO_CAST6 is not set
767# CONFIG_CRYPTO_DES is not set
768# CONFIG_CRYPTO_FCRYPT is not set
769# CONFIG_CRYPTO_KHAZAD is not set
770# CONFIG_CRYPTO_SALSA20 is not set
771# CONFIG_CRYPTO_SEED is not set
772# CONFIG_CRYPTO_SERPENT is not set
773# CONFIG_CRYPTO_TEA is not set
774# CONFIG_CRYPTO_TWOFISH is not set
775
776#
777# Compression
778#
779# CONFIG_CRYPTO_DEFLATE is not set
780# CONFIG_CRYPTO_LZO is not set
781
782#
783# Random Number Generation
784#
785# CONFIG_CRYPTO_ANSI_CPRNG is not set
786CONFIG_CRYPTO_HW=y
787
788#
789# Library routines
790#
791CONFIG_GENERIC_FIND_LAST_BIT=y
792# CONFIG_CRC_CCITT is not set
793# CONFIG_CRC16 is not set
794# CONFIG_CRC_T10DIF is not set
795# CONFIG_CRC_ITU_T is not set
796# CONFIG_CRC32 is not set
797# CONFIG_CRC7 is not set
798# CONFIG_LIBCRC32C is not set
799CONFIG_ZLIB_INFLATE=y
800CONFIG_PLIST=y
801CONFIG_HAS_IOMEM=y
802CONFIG_HAS_IOPORT=y
803CONFIG_HAS_DMA=y
804CONFIG_HAVE_LMB=y
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
new file mode 100644
index 000000000000..31820dfef56b
--- /dev/null
+++ b/arch/microblaze/include/asm/Kbuild
@@ -0,0 +1,26 @@
1include include/asm-generic/Kbuild.asm
2
3header-y += auxvec.h
4header-y += errno.h
5header-y += fcntl.h
6header-y += ioctl.h
7header-y += ioctls.h
8header-y += ipcbuf.h
9header-y += linkage.h
10header-y += msgbuf.h
11header-y += poll.h
12header-y += resource.h
13header-y += sembuf.h
14header-y += shmbuf.h
15header-y += sigcontext.h
16header-y += siginfo.h
17header-y += socket.h
18header-y += sockios.h
19header-y += statfs.h
20header-y += stat.h
21header-y += termbits.h
22header-y += ucontext.h
23
24unifdef-y += cputable.h
25unifdef-y += elf.h
26unifdef-y += termios.h
diff --git a/arch/microblaze/include/asm/atomic.h b/arch/microblaze/include/asm/atomic.h
new file mode 100644
index 000000000000..a448d94ab721
--- /dev/null
+++ b/arch/microblaze/include/asm/atomic.h
@@ -0,0 +1,123 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_ATOMIC_H
10#define _ASM_MICROBLAZE_ATOMIC_H
11
12#include <linux/types.h>
13#include <linux/compiler.h> /* likely */
14#include <asm/system.h> /* local_irq_XXX and friends */
15
16#define ATOMIC_INIT(i) { (i) }
17#define atomic_read(v) ((v)->counter)
18#define atomic_set(v, i) (((v)->counter) = (i))
19
20#define atomic_inc(v) (atomic_add_return(1, (v)))
21#define atomic_dec(v) (atomic_sub_return(1, (v)))
22
23#define atomic_add(i, v) (atomic_add_return(i, (v)))
24#define atomic_sub(i, v) (atomic_sub_return(i, (v)))
25
26#define atomic_inc_return(v) (atomic_add_return(1, (v)))
27#define atomic_dec_return(v) (atomic_sub_return(1, (v)))
28
29#define atomic_inc_and_test(v) (atomic_add_return(1, (v)) == 0)
30#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
31
32#define atomic_inc_not_zero(v) (atomic_add_unless((v), 1, 0))
33
34#define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0)
35
36static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
37{
38 int ret;
39 unsigned long flags;
40
41 local_irq_save(flags);
42 ret = v->counter;
43 if (likely(ret == old))
44 v->counter = new;
45 local_irq_restore(flags);
46
47 return ret;
48}
49
50static inline int atomic_add_unless(atomic_t *v, int a, int u)
51{
52 int c, old;
53
54 c = atomic_read(v);
55 while (c != u && (old = atomic_cmpxchg((v), c, c + a)) != c)
56 c = old;
57 return c != u;
58}
59
60static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
61{
62 unsigned long flags;
63
64 local_irq_save(flags);
65 *addr &= ~mask;
66 local_irq_restore(flags);
67}
68
69/**
70 * atomic_add_return - add and return
71 * @i: integer value to add
72 * @v: pointer of type atomic_t
73 *
74 * Atomically adds @i to @v and returns @i + @v
75 */
76static inline int atomic_add_return(int i, atomic_t *v)
77{
78 unsigned long flags;
79 int val;
80
81 local_irq_save(flags);
82 val = v->counter;
83 v->counter = val += i;
84 local_irq_restore(flags);
85
86 return val;
87}
88
89static inline int atomic_sub_return(int i, atomic_t *v)
90{
91 return atomic_add_return(-i, v);
92}
93
94/*
95 * Atomically test *v and decrement if it is greater than 0.
96 * The function returns the old value of *v minus 1.
97 */
98static inline int atomic_dec_if_positive(atomic_t *v)
99{
100 unsigned long flags;
101 int res;
102
103 local_irq_save(flags);
104 res = v->counter - 1;
105 if (res >= 0)
106 v->counter = res;
107 local_irq_restore(flags);
108
109 return res;
110}
111
112#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
113#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
114
115/* Atomic operations are already serializing */
116#define smp_mb__before_atomic_dec() barrier()
117#define smp_mb__after_atomic_dec() barrier()
118#define smp_mb__before_atomic_inc() barrier()
119#define smp_mb__after_atomic_inc() barrier()
120
121#include <asm-generic/atomic.h>
122
123#endif /* _ASM_MICROBLAZE_ATOMIC_H */
diff --git a/arch/microblaze/include/asm/auxvec.h b/arch/microblaze/include/asm/auxvec.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/arch/microblaze/include/asm/auxvec.h
diff --git a/arch/microblaze/include/asm/bitops.h b/arch/microblaze/include/asm/bitops.h
new file mode 100644
index 000000000000..d6df1fd4e1e8
--- /dev/null
+++ b/arch/microblaze/include/asm/bitops.h
@@ -0,0 +1,27 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_BITOPS_H
10#define _ASM_MICROBLAZE_BITOPS_H
11
12/*
13 * Copyright 1992, Linus Torvalds.
14 */
15
16#include <asm/byteorder.h> /* swab32 */
17#include <asm/system.h> /* save_flags */
18
19/*
20 * clear_bit() doesn't provide any barrier for the compiler.
21 */
22#define smp_mb__before_clear_bit() barrier()
23#define smp_mb__after_clear_bit() barrier()
24#include <asm-generic/bitops.h>
25#include <asm-generic/bitops/__fls.h>
26
27#endif /* _ASM_MICROBLAZE_BITOPS_H */
diff --git a/arch/microblaze/include/asm/bug.h b/arch/microblaze/include/asm/bug.h
new file mode 100644
index 000000000000..8eb2cdde11d7
--- /dev/null
+++ b/arch/microblaze/include/asm/bug.h
@@ -0,0 +1,15 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_BUG_H
10#define _ASM_MICROBLAZE_BUG_H
11
12#include <linux/kernel.h>
13#include <asm-generic/bug.h>
14
15#endif /* _ASM_MICROBLAZE_BUG_H */
diff --git a/arch/microblaze/include/asm/bugs.h b/arch/microblaze/include/asm/bugs.h
new file mode 100644
index 000000000000..f2c6593653fb
--- /dev/null
+++ b/arch/microblaze/include/asm/bugs.h
@@ -0,0 +1,17 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_BUGS_H
10#define _ASM_MICROBLAZE_BUGS_H
11
12static inline void check_bugs(void)
13{
14 /* nothing to do */
15}
16
17#endif /* _ASM_MICROBLAZE_BUGS_H */
diff --git a/arch/microblaze/include/asm/byteorder.h b/arch/microblaze/include/asm/byteorder.h
new file mode 100644
index 000000000000..ce9c58732ffc
--- /dev/null
+++ b/arch/microblaze/include/asm/byteorder.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_MICROBLAZE_BYTEORDER_H
2#define _ASM_MICROBLAZE_BYTEORDER_H
3
4#include <linux/byteorder/big_endian.h>
5
6#endif /* _ASM_MICROBLAZE_BYTEORDER_H */
diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
new file mode 100644
index 000000000000..c4c64b43c074
--- /dev/null
+++ b/arch/microblaze/include/asm/cache.h
@@ -0,0 +1,45 @@
1/*
2 * Cache operations
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007-2009 PetaLogix
6 * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au>
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 */
12
13#ifndef _ASM_MICROBLAZE_CACHE_H
14#define _ASM_MICROBLAZE_CACHE_H
15
16#include <asm/registers.h>
17
18#define L1_CACHE_SHIFT 2
19/* word-granular cache in microblaze */
20#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
21
22#define SMP_CACHE_BYTES L1_CACHE_BYTES
23
24void _enable_icache(void);
25void _disable_icache(void);
26void _invalidate_icache(unsigned int addr);
27
28#define __enable_icache() _enable_icache()
29#define __disable_icache() _disable_icache()
30#define __invalidate_icache(addr) _invalidate_icache(addr)
31
32void _enable_dcache(void);
33void _disable_dcache(void);
34void _invalidate_dcache(unsigned int addr);
35
36#define __enable_dcache() _enable_dcache()
37#define __disable_dcache() _disable_dcache()
38#define __invalidate_dcache(addr) _invalidate_dcache(addr)
39
40/* FIXME - I don't think this is right */
41#ifdef CONFIG_XILINX_UNCACHED_SHADOW
42#define UNCACHED_SHADOW_MASK (CONFIG_XILINX_ERAM_SIZE)
43#endif
44
45#endif /* _ASM_MICROBLAZE_CACHE_H */
diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h
new file mode 100644
index 000000000000..3300b785049b
--- /dev/null
+++ b/arch/microblaze/include/asm/cacheflush.h
@@ -0,0 +1,85 @@
1/*
2 * Copyright (C) 2007 PetaLogix
3 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
4 * based on v850 version which was
5 * Copyright (C) 2001,02,03 NEC Electronics Corporation
6 * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 *
12 */
13
14#ifndef _ASM_MICROBLAZE_CACHEFLUSH_H
15#define _ASM_MICROBLAZE_CACHEFLUSH_H
16
17/* Somebody depends on this; sigh... */
18#include <linux/mm.h>
19
20/*
21 * Cache handling functions.
22 * Microblaze has a write-through data cache, meaning that the data cache
23 * never needs to be flushed. The only flushing operations that are
24 * implemented are to invalidate the instruction cache. These are called
25 * after loading a user application into memory, we must invalidate the
26 * instruction cache to make sure we don't fetch old, bad code.
27 */
28
29/* FIXME for LL-temac driver */
30#define invalidate_dcache_range(start, end) \
31 __invalidate_dcache_range(start, end)
32
33#define flush_cache_all() __invalidate_cache_all()
34#define flush_cache_mm(mm) do { } while (0)
35#define flush_cache_range(vma, start, end) __invalidate_cache_all()
36#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
37
38#define flush_dcache_range(start, end) __invalidate_dcache_range(start, end)
39#define flush_dcache_page(page) do { } while (0)
40#define flush_dcache_mmap_lock(mapping) do { } while (0)
41#define flush_dcache_mmap_unlock(mapping) do { } while (0)
42
43#define flush_icache_range(start, len) __invalidate_icache_range(start, len)
44#define flush_icache_page(vma, pg) do { } while (0)
45
46#define flush_cache_vmap(start, end) do { } while (0)
47#define flush_cache_vunmap(start, end) do { } while (0)
48
49struct page;
50struct mm_struct;
51struct vm_area_struct;
52
53/* see arch/microblaze/kernel/cache.c */
54extern void __invalidate_icache_all(void);
55extern void __invalidate_icache_range(unsigned long start, unsigned long end);
56extern void __invalidate_icache_page(struct vm_area_struct *vma,
57 struct page *page);
58extern void __invalidate_icache_user_range(struct vm_area_struct *vma,
59 struct page *page,
60 unsigned long adr, int len);
61extern void __invalidate_cache_sigtramp(unsigned long addr);
62
63extern void __invalidate_dcache_all(void);
64extern void __invalidate_dcache_range(unsigned long start, unsigned long end);
65extern void __invalidate_dcache_page(struct vm_area_struct *vma,
66 struct page *page);
67extern void __invalidate_dcache_user_range(struct vm_area_struct *vma,
68 struct page *page,
69 unsigned long adr, int len);
70
71extern inline void __invalidate_cache_all(void)
72{
73 __invalidate_icache_all();
74 __invalidate_dcache_all();
75}
76
77#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
78do { memcpy((dst), (src), (len)); \
79 flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
80} while (0)
81
82#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
83 memcpy((dst), (src), (len))
84
85#endif /* _ASM_MICROBLAZE_CACHEFLUSH_H */
diff --git a/arch/microblaze/include/asm/checksum.h b/arch/microblaze/include/asm/checksum.h
new file mode 100644
index 000000000000..92b30762ce59
--- /dev/null
+++ b/arch/microblaze/include/asm/checksum.h
@@ -0,0 +1,98 @@
1/*
2 * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2006 Atmark Techno, Inc.
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
9
10#ifndef _ASM_MICROBLAZE_CHECKSUM_H
11#define _ASM_MICROBLAZE_CHECKSUM_H
12
13#include <linux/in6.h>
14
15/*
16 * computes the checksum of the TCP/UDP pseudo-header
17 * returns a 16-bit checksum, already complemented
18 */
19static inline __wsum
20csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
21 unsigned short proto, __wsum sum)
22{
23 __asm__("add %0, %0, %1\n\t"
24 "addc %0, %0, %2\n\t"
25 "addc %0, %0, %3\n\t"
26 "addc %0, %0, r0\n\t"
27 : "+&d" (sum)
28 : "d" (saddr), "d" (daddr), "d" (len + proto));
29
30 return sum;
31}
32
33/*
34 * computes the checksum of a memory block at buff, length len,
35 * and adds in "sum" (32-bit)
36 *
37 * returns a 32-bit number suitable for feeding into itself
38 * or csum_tcpudp_magic
39 *
40 * this function must be called with even lengths, except
41 * for the last fragment, which may be odd
42 *
43 * it's best to have buff aligned on a 32-bit boundary
44 */
45extern __wsum csum_partial(const void *buff, int len, __wsum sum);
46
47/*
48 * the same as csum_partial, but copies from src while it
49 * checksums
50 *
51 * here even more important to align src and dst on a 32-bit (or even
52 * better 64-bit) boundary
53 */
54extern __wsum csum_partial_copy(const char *src, char *dst, int len, int sum);
55
56/*
57 * the same as csum_partial_copy, but copies from user space.
58 *
59 * here even more important to align src and dst on a 32-bit (or even
60 * better 64-bit) boundary
61 */
62extern __wsum csum_partial_copy_from_user(const char *src, char *dst,
63 int len, int sum, int *csum_err);
64
65#define csum_partial_copy_nocheck(src, dst, len, sum) \
66 csum_partial_copy((src), (dst), (len), (sum))
67
68/*
69 * This is a version of ip_compute_csum() optimized for IP headers,
70 * which always checksum on 4 octet boundaries.
71 *
72 */
73extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
74
75/*
76 * Fold a partial checksum
77 */
78static inline __sum16 csum_fold(unsigned int sum)
79{
80 sum = (sum & 0xffff) + (sum >> 16);
81 sum = (sum & 0xffff) + (sum >> 16);
82 return ~sum;
83}
84
85static inline __sum16
86csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
87 unsigned short proto, __wsum sum)
88{
89 return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
90}
91
92/*
93 * this routine is used for miscellaneous IP-like checksums, mainly
94 * in icmp.c
95 */
96extern __sum16 ip_compute_csum(const unsigned char *buff, int len);
97
98#endif /* _ASM_MICROBLAZE_CHECKSUM_H */
diff --git a/arch/microblaze/include/asm/clinkage.h b/arch/microblaze/include/asm/clinkage.h
new file mode 100644
index 000000000000..9e218435a55c
--- /dev/null
+++ b/arch/microblaze/include/asm/clinkage.h
@@ -0,0 +1 @@
#include <linux/linkage.h>
diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h
new file mode 100644
index 000000000000..52f28f6dc4eb
--- /dev/null
+++ b/arch/microblaze/include/asm/cpuinfo.h
@@ -0,0 +1,102 @@
1/*
2 * Generic support for queying CPU info
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007-2009 PetaLogix
6 * Copyright (C) 2007 John Williams <jwilliams@itee.uq.edu.au>
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 */
12
13#ifndef _ASM_MICROBLAZE_CPUINFO_H
14#define _ASM_MICROBLAZE_CPUINFO_H
15
16#include <asm/prom.h>
17
18/* CPU Version and FPGA Family code conversion table type */
19struct cpu_ver_key {
20 const char *s;
21 const unsigned k;
22};
23
24extern const struct cpu_ver_key cpu_ver_lookup[];
25
26struct family_string_key {
27 const char *s;
28 const unsigned k;
29};
30
31extern const struct family_string_key family_string_lookup[];
32
33struct cpuinfo {
34 /* Core CPU configuration */
35 u32 use_instr;
36 u32 use_mult;
37 u32 use_fpu;
38 u32 use_exc;
39 u32 ver_code;
40 u32 mmu;
41
42 /* CPU caches */
43 u32 use_icache;
44 u32 icache_tagbits;
45 u32 icache_write;
46 u32 icache_line;
47 u32 icache_size;
48 unsigned long icache_base;
49 unsigned long icache_high;
50
51 u32 use_dcache;
52 u32 dcache_tagbits;
53 u32 dcache_write;
54 u32 dcache_line;
55 u32 dcache_size;
56 unsigned long dcache_base;
57 unsigned long dcache_high;
58
59 /* Bus connections */
60 u32 use_dopb;
61 u32 use_iopb;
62 u32 use_dlmb;
63 u32 use_ilmb;
64 u32 num_fsl;
65
66 /* CPU interrupt line info */
67 u32 irq_edge;
68 u32 irq_positive;
69
70 u32 area_optimised;
71
72 /* HW debug support */
73 u32 hw_debug;
74 u32 num_pc_brk;
75 u32 num_rd_brk;
76 u32 num_wr_brk;
77 u32 cpu_clock_freq; /* store real freq of cpu */
78 u32 freq_div_hz; /* store freq/HZ */
79
80 /* FPGA family */
81 u32 fpga_family_code;
82
83 /* User define */
84 u32 pvr_user1;
85 u32 pvr_user2;
86};
87
88extern struct cpuinfo cpuinfo;
89
90/* fwd declarations of the various CPUinfo populators */
91void setup_cpuinfo(void);
92
93void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);
94void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
95
96static inline unsigned int fcpu(struct device_node *cpu, char *n)
97{
98 int *val;
99 return (val = (int *) of_get_property(cpu, n, NULL)) ? *val : 0;
100}
101
102#endif /* _ASM_MICROBLAZE_CPUINFO_H */
diff --git a/arch/microblaze/include/asm/cputable.h b/arch/microblaze/include/asm/cputable.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/arch/microblaze/include/asm/cputable.h
diff --git a/arch/microblaze/include/asm/cputime.h b/arch/microblaze/include/asm/cputime.h
new file mode 100644
index 000000000000..6d68ad7e0ea3
--- /dev/null
+++ b/arch/microblaze/include/asm/cputime.h
@@ -0,0 +1 @@
#include <asm-generic/cputime.h>
diff --git a/arch/microblaze/include/asm/current.h b/arch/microblaze/include/asm/current.h
new file mode 100644
index 000000000000..8375ea991e26
--- /dev/null
+++ b/arch/microblaze/include/asm/current.h
@@ -0,0 +1,21 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_CURRENT_H
10#define _ASM_MICROBLAZE_CURRENT_H
11
12# ifndef __ASSEMBLY__
13/*
14 * Dedicate r31 to keeping the current task pointer
15 */
16register struct task_struct *current asm("r31");
17
18# define get_current() current
19# endif /* __ASSEMBLY__ */
20
21#endif /* _ASM_MICROBLAZE_CURRENT_H */
diff --git a/arch/microblaze/include/asm/delay.h b/arch/microblaze/include/asm/delay.h
new file mode 100644
index 000000000000..05b7d39e4391
--- /dev/null
+++ b/arch/microblaze/include/asm/delay.h
@@ -0,0 +1,72 @@
1/*
2 * include/asm-microblaze/delay.h
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 2008 Michal Simek
9 * Copyright (C) 2007 John Williams
10 * Copyright (C) 2006 Atmark Techno, Inc.
11 */
12
13#ifndef _ASM_MICROBLAZE_DELAY_H
14#define _ASM_MICROBLAZE_DELAY_H
15
16extern inline void __delay(unsigned long loops)
17{
18 asm volatile ("# __delay \n\t" \
19 "1: addi %0, %0, -1\t\n" \
20 "bneid %0, 1b \t\n" \
21 "nop \t\n"
22 : "=r" (loops)
23 : "0" (loops));
24}
25
26/*
27 * Note that 19 * 226 == 4294 ==~ 2^32 / 10^6, so
28 * loops = (4294 * usecs * loops_per_jiffy * HZ) / 2^32.
29 *
30 * The mul instruction gives us loops = (a * b) / 2^32.
31 * We choose a = usecs * 19 * HZ and b = loops_per_jiffy * 226
32 * because this lets us support a wide range of HZ and
33 * loops_per_jiffy values without either a or b overflowing 2^32.
34 * Thus we need usecs * HZ <= (2^32 - 1) / 19 = 226050910 and
35 * loops_per_jiffy <= (2^32 - 1) / 226 = 19004280
36 * (which corresponds to ~3800 bogomips at HZ = 100).
37 * -- paulus
38 */
39#define __MAX_UDELAY (226050910UL/HZ) /* maximum udelay argument */
40#define __MAX_NDELAY (4294967295UL/HZ) /* maximum ndelay argument */
41
42extern unsigned long loops_per_jiffy;
43
44extern inline void __udelay(unsigned int x)
45{
46
47 unsigned long long tmp =
48 (unsigned long long)x * (unsigned long long)loops_per_jiffy \
49 * 226LL;
50 unsigned loops = tmp >> 32;
51
52/*
53 __asm__("mulxuu %0,%1,%2" : "=r" (loops) :
54 "r" (x), "r" (loops_per_jiffy * 226));
55*/
56 __delay(loops);
57}
58
59extern void __bad_udelay(void); /* deliberately undefined */
60extern void __bad_ndelay(void); /* deliberately undefined */
61
62#define udelay(n) (__builtin_constant_p(n) ? \
63 ((n) > __MAX_UDELAY ? __bad_udelay() : __udelay((n) * (19 * HZ))) : \
64 __udelay((n) * (19 * HZ)))
65
66#define ndelay(n) (__builtin_constant_p(n) ? \
67 ((n) > __MAX_NDELAY ? __bad_ndelay() : __udelay((n) * HZ)) : \
68 __udelay((n) * HZ))
69
70#define muldiv(a, b, c) (((a)*(b))/(c))
71
72#endif /* _ASM_MICROBLAZE_DELAY_H */
diff --git a/arch/microblaze/include/asm/device.h b/arch/microblaze/include/asm/device.h
new file mode 100644
index 000000000000..c042830793ed
--- /dev/null
+++ b/arch/microblaze/include/asm/device.h
@@ -0,0 +1,21 @@
1/*
2 * Arch specific extensions to struct device
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License v2. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_DEVICE_H
10#define _ASM_MICROBLAZE_DEVICE_H
11
12struct device_node;
13
14struct dev_archdata {
15 /* Optional pointer to an OF device node */
16 struct device_node *of_node;
17};
18
19#endif /* _ASM_MICROBLAZE_DEVICE_H */
20
21
diff --git a/arch/microblaze/include/asm/div64.h b/arch/microblaze/include/asm/div64.h
new file mode 100644
index 000000000000..6cd978cefb28
--- /dev/null
+++ b/arch/microblaze/include/asm/div64.h
@@ -0,0 +1 @@
#include <asm-generic/div64.h>
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..17336252a9b8
--- /dev/null
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -0,0 +1,129 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_DMA_MAPPING_H
10#define _ASM_MICROBLAZE_DMA_MAPPING_H
11
12#include <asm/cacheflush.h>
13#include <linux/io.h>
14#include <linux/bug.h>
15
16struct scatterlist;
17
18#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
19#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
20
21/* FIXME */
22static inline int
23dma_supported(struct device *dev, u64 mask)
24{
25 return 1;
26}
27
28static inline dma_addr_t
29dma_map_page(struct device *dev, struct page *page,
30 unsigned long offset, size_t size,
31 enum dma_data_direction direction)
32{
33 BUG();
34 return 0;
35}
36
37static inline void
38dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
39 enum dma_data_direction direction)
40{
41 BUG();
42}
43
44static inline int
45dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
46 enum dma_data_direction direction)
47{
48 BUG();
49 return 0;
50}
51
52static inline void
53dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
54 enum dma_data_direction direction)
55{
56 BUG();
57}
58
59static inline void
60dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
61 enum dma_data_direction direction)
62{
63 BUG();
64}
65
66static inline void
67dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
68 size_t size, enum dma_data_direction direction)
69{
70 BUG();
71}
72
73static inline void
74dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
75 enum dma_data_direction direction)
76{
77 BUG();
78}
79
80static inline void
81dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
82 enum dma_data_direction direction)
83{
84 BUG();
85}
86
87static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
88{
89 return 0;
90}
91
92static inline void *dma_alloc_coherent(struct device *dev, size_t size,
93 dma_addr_t *dma_handle, int flag)
94{
95 return NULL; /* consistent_alloc(flag, size, dma_handle); */
96}
97
98static inline void dma_free_coherent(struct device *dev, size_t size,
99 void *vaddr, dma_addr_t dma_handle)
100{
101 BUG();
102}
103
104static inline dma_addr_t
105dma_map_single(struct device *dev, void *ptr, size_t size,
106 enum dma_data_direction direction)
107{
108 BUG_ON(direction == DMA_NONE);
109
110 return virt_to_bus(ptr);
111}
112
113static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
114 size_t size,
115 enum dma_data_direction direction)
116{
117 switch (direction) {
118 case DMA_FROM_DEVICE:
119 flush_dcache_range((unsigned)dma_addr,
120 (unsigned)dma_addr + size);
121 /* Fall through */
122 case DMA_TO_DEVICE:
123 break;
124 default:
125 BUG();
126 }
127}
128
129#endif /* _ASM_MICROBLAZE_DMA_MAPPING_H */
diff --git a/arch/microblaze/include/asm/dma.h b/arch/microblaze/include/asm/dma.h
new file mode 100644
index 000000000000..0967fa04fc5e
--- /dev/null
+++ b/arch/microblaze/include/asm/dma.h
@@ -0,0 +1,16 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_DMA_H
10#define _ASM_MICROBLAZE_DMA_H
11
12/* we don't have dma address limit. define it as zero to be
13 * unlimited. */
14#define MAX_DMA_ADDRESS (0)
15
16#endif /* _ASM_MICROBLAZE_DMA_H */
diff --git a/arch/microblaze/include/asm/elf.h b/arch/microblaze/include/asm/elf.h
new file mode 100644
index 000000000000..81337f241347
--- /dev/null
+++ b/arch/microblaze/include/asm/elf.h
@@ -0,0 +1,30 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_ELF_H
10#define _ASM_MICROBLAZE_ELF_H
11
12/*
13 * Note there is no "official" ELF designation for Microblaze.
14 * I've snaffled the value from the microblaze binutils source code
15 * /binutils/microblaze/include/elf/microblaze.h
16 */
17#define EM_XILINX_MICROBLAZE 0xbaab
18#define ELF_ARCH EM_XILINX_MICROBLAZE
19
20/*
21 * This is used to ensure we don't load something for the wrong architecture.
22 */
23#define elf_check_arch(x) ((x)->e_machine == EM_XILINX_MICROBLAZE)
24
25/*
26 * These are used to set parameters in the core dumps.
27 */
28#define ELF_CLASS ELFCLASS32
29
30#endif /* _ASM_MICROBLAZE_ELF_H */
diff --git a/arch/microblaze/include/asm/emergency-restart.h b/arch/microblaze/include/asm/emergency-restart.h
new file mode 100644
index 000000000000..3711bd9d50bd
--- /dev/null
+++ b/arch/microblaze/include/asm/emergency-restart.h
@@ -0,0 +1 @@
#include <asm-generic/emergency-restart.h>
diff --git a/arch/microblaze/include/asm/entry.h b/arch/microblaze/include/asm/entry.h
new file mode 100644
index 000000000000..7f57e42ee467
--- /dev/null
+++ b/arch/microblaze/include/asm/entry.h
@@ -0,0 +1,35 @@
1/*
2 * Definitions used by low-level trap handlers
3 *
4 * Copyright (C) 2008 Michal Simek
5 * Copyright (C) 2007 - 2008 PetaLogix
6 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 */
12
13#ifndef _ASM_MICROBLAZE_ENTRY_H
14#define _ASM_MICROBLAZE_ENTRY_H
15
16#include <asm/percpu.h>
17#include <asm/ptrace.h>
18
19/*
20 * These are per-cpu variables required in entry.S, among other
21 * places
22 */
23
24#define PER_CPU(var) per_cpu__##var
25
26# ifndef __ASSEMBLY__
27DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
28DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
29DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
30DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
31DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
32DECLARE_PER_CPU(unsigned int, SYSCALL_SAVE); /* Saved syscall number */
33# endif /* __ASSEMBLY__ */
34
35#endif /* _ASM_MICROBLAZE_ENTRY_H */
diff --git a/arch/microblaze/include/asm/errno.h b/arch/microblaze/include/asm/errno.h
new file mode 100644
index 000000000000..4c82b503d92f
--- /dev/null
+++ b/arch/microblaze/include/asm/errno.h
@@ -0,0 +1 @@
#include <asm-generic/errno.h>
diff --git a/arch/microblaze/include/asm/exceptions.h b/arch/microblaze/include/asm/exceptions.h
new file mode 100644
index 000000000000..4cdd2159f470
--- /dev/null
+++ b/arch/microblaze/include/asm/exceptions.h
@@ -0,0 +1,96 @@
1/*
2 * Preliminary support for HW exception handing for Microblaze
3 *
4 * Copyright (C) 2008 Michal Simek
5 * Copyright (C) 2008 PetaLogix
6 * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 */
12
13#ifndef _ASM_MICROBLAZE_EXCEPTIONS_H
14#define _ASM_MICROBLAZE_EXCEPTIONS_H
15
16#ifdef __KERNEL__
17#ifndef __ASSEMBLY__
18
19/* Macros to enable and disable HW exceptions in the MSR */
20/* Define MSR enable bit for HW exceptions */
21#define HWEX_MSR_BIT (1 << 8)
22
23#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
24#define __enable_hw_exceptions() \
25 __asm__ __volatile__ (" msrset r0, %0; \
26 nop;" \
27 : \
28 : "i" (HWEX_MSR_BIT) \
29 : "memory")
30
31#define __disable_hw_exceptions() \
32 __asm__ __volatile__ (" msrclr r0, %0; \
33 nop;" \
34 : \
35 : "i" (HWEX_MSR_BIT) \
36 : "memory")
37#else /* !CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
38#define __enable_hw_exceptions() \
39 __asm__ __volatile__ (" \
40 mfs r12, rmsr; \
41 nop; \
42 ori r12, r12, %0; \
43 mts rmsr, r12; \
44 nop;" \
45 : \
46 : "i" (HWEX_MSR_BIT) \
47 : "memory", "r12")
48
49#define __disable_hw_exceptions() \
50 __asm__ __volatile__ (" \
51 mfs r12, rmsr; \
52 nop; \
53 andi r12, r12, ~%0; \
54 mts rmsr, r12; \
55 nop;" \
56 : \
57 : "i" (HWEX_MSR_BIT) \
58 : "memory", "r12")
59#endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
60
61asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
62 int fsr, int addr);
63
64#if defined(CONFIG_XMON)
65extern void xmon(struct pt_regs *regs);
66extern int xmon_bpt(struct pt_regs *regs);
67extern int xmon_sstep(struct pt_regs *regs);
68extern int xmon_iabr_match(struct pt_regs *regs);
69extern int xmon_dabr_match(struct pt_regs *regs);
70extern void (*xmon_fault_handler)(struct pt_regs *regs);
71
72void (*debugger)(struct pt_regs *regs) = xmon;
73int (*debugger_bpt)(struct pt_regs *regs) = xmon_bpt;
74int (*debugger_sstep)(struct pt_regs *regs) = xmon_sstep;
75int (*debugger_iabr_match)(struct pt_regs *regs) = xmon_iabr_match;
76int (*debugger_dabr_match)(struct pt_regs *regs) = xmon_dabr_match;
77void (*debugger_fault_handler)(struct pt_regs *regs);
78#elif defined(CONFIG_KGDB)
79void (*debugger)(struct pt_regs *regs);
80int (*debugger_bpt)(struct pt_regs *regs);
81int (*debugger_sstep)(struct pt_regs *regs);
82int (*debugger_iabr_match)(struct pt_regs *regs);
83int (*debugger_dabr_match)(struct pt_regs *regs);
84void (*debugger_fault_handler)(struct pt_regs *regs);
85#else
86#define debugger(regs) do { } while (0)
87#define debugger_bpt(regs) 0
88#define debugger_sstep(regs) 0
89#define debugger_iabr_match(regs) 0
90#define debugger_dabr_match(regs) 0
91#define debugger_fault_handler ((void (*)(struct pt_regs *))0)
92#endif
93
94#endif /*__ASSEMBLY__ */
95#endif /* __KERNEL__ */
96#endif /* _ASM_MICROBLAZE_EXCEPTIONS_H */
diff --git a/arch/microblaze/include/asm/fcntl.h b/arch/microblaze/include/asm/fcntl.h
new file mode 100644
index 000000000000..46ab12db5739
--- /dev/null
+++ b/arch/microblaze/include/asm/fcntl.h
@@ -0,0 +1 @@
#include <asm-generic/fcntl.h>
diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h
new file mode 100644
index 000000000000..acf0da543ef1
--- /dev/null
+++ b/arch/microblaze/include/asm/flat.h
@@ -0,0 +1,90 @@
1/*
2 * uClinux flat-format executables
3 *
4 * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au>
5 *
6 * This file is subject to the terms and conditions of the GNU General
7 * Public License. See the file COPYING in the main directory of this
8 * archive for more details.
9 */
10
11#ifndef _ASM_MICROBLAZE_FLAT_H
12#define _ASM_MICROBLAZE_FLAT_H
13
14#include <asm/unaligned.h>
15
16#define flat_stack_align(sp) /* nothing needed */
17#define flat_argvp_envp_on_stack() 0
18#define flat_old_ram_flag(flags) (flags)
19#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
20#define flat_set_persistent(relval, p) 0
21
22/*
23 * Microblaze works a little differently from other arches, because
24 * of the MICROBLAZE_64 reloc type. Here, a 32 bit address is split
25 * over two instructions, an 'imm' instruction which provides the top
26 * 16 bits, then the instruction "proper" which provides the low 16
27 * bits.
28 */
29
30/*
31 * Crack open a symbol reference and extract the address to be
32 * relocated. rp is a potentially unaligned pointer to the
33 * reference
34 */
35
36static inline unsigned long
37flat_get_addr_from_rp(unsigned long *rp, unsigned long relval,
38 unsigned long flags, unsigned long *persistent)
39{
40 unsigned long addr;
41 (void)flags;
42
43 /* Is it a split 64/32 reference? */
44 if (relval & 0x80000000) {
45 /* Grab the two halves of the reference */
46 unsigned long val_hi, val_lo;
47
48 val_hi = get_unaligned(rp);
49 val_lo = get_unaligned(rp+1);
50
51 /* Crack the address out */
52 addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff);
53 } else {
54 /* Get the address straight out */
55 addr = get_unaligned(rp);
56 }
57
58 return addr;
59}
60
61/*
62 * Insert an address into the symbol reference at rp. rp is potentially
63 * unaligned.
64 */
65
66static inline void
67flat_put_addr_at_rp(unsigned long *rp, unsigned long addr, unsigned long relval)
68{
69 /* Is this a split 64/32 reloc? */
70 if (relval & 0x80000000) {
71 /* Get the two "halves" */
72 unsigned long val_hi = get_unaligned(rp);
73 unsigned long val_lo = get_unaligned(rp + 1);
74
75 /* insert the address */
76 val_hi = (val_hi & 0xffff0000) | addr >> 16;
77 val_lo = (val_lo & 0xffff0000) | (addr & 0xffff);
78
79 /* store the two halves back into memory */
80 put_unaligned(val_hi, rp);
81 put_unaligned(val_lo, rp+1);
82 } else {
83 /* Put it straight in, no messing around */
84 put_unaligned(addr, rp);
85 }
86}
87
88#define flat_get_relocate_addr(rel) (rel & 0x7fffffff)
89
90#endif /* _ASM_MICROBLAZE_FLAT_H */
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
new file mode 100644
index 000000000000..0b745828f42b
--- /dev/null
+++ b/arch/microblaze/include/asm/futex.h
@@ -0,0 +1 @@
#include <asm-generic/futex.h>
diff --git a/arch/microblaze/include/asm/gpio.h b/arch/microblaze/include/asm/gpio.h
new file mode 100644
index 000000000000..ea04632399d8
--- /dev/null
+++ b/arch/microblaze/include/asm/gpio.h
@@ -0,0 +1,56 @@
1/*
2 * Generic GPIO API implementation for PowerPC.
3 *
4 * Copyright (c) 2007-2008 MontaVista Software, Inc.
5 *
6 * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __ASM_POWERPC_GPIO_H
15#define __ASM_POWERPC_GPIO_H
16
17#include <linux/errno.h>
18#include <asm-generic/gpio.h>
19
20#ifdef CONFIG_GPIOLIB
21
22/*
23 * We don't (yet) implement inlined/rapid versions for on-chip gpios.
24 * Just call gpiolib.
25 */
26static inline int gpio_get_value(unsigned int gpio)
27{
28 return __gpio_get_value(gpio);
29}
30
31static inline void gpio_set_value(unsigned int gpio, int value)
32{
33 __gpio_set_value(gpio, value);
34}
35
36static inline int gpio_cansleep(unsigned int gpio)
37{
38 return __gpio_cansleep(gpio);
39}
40
41/*
42 * Not implemented, yet.
43 */
44static inline int gpio_to_irq(unsigned int gpio)
45{
46 return -ENOSYS;
47}
48
49static inline int irq_to_gpio(unsigned int irq)
50{
51 return -EINVAL;
52}
53
54#endif /* CONFIG_GPIOLIB */
55
56#endif /* __ASM_POWERPC_GPIO_H */
diff --git a/arch/microblaze/include/asm/hardirq.h b/arch/microblaze/include/asm/hardirq.h
new file mode 100644
index 000000000000..0f2d6b013e11
--- /dev/null
+++ b/arch/microblaze/include/asm/hardirq.h
@@ -0,0 +1,29 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_HARDIRQ_H
10#define _ASM_MICROBLAZE_HARDIRQ_H
11
12#include <linux/cache.h>
13#include <linux/irq.h>
14#include <asm/irq.h>
15#include <asm/current.h>
16#include <linux/ptrace.h>
17
18/* should be defined in each interrupt controller driver */
19extern unsigned int get_irq(struct pt_regs *regs);
20
21typedef struct {
22 unsigned int __softirq_pending;
23} ____cacheline_aligned irq_cpustat_t;
24
25void ack_bad_irq(unsigned int irq);
26
27#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
28
29#endif /* _ASM_MICROBLAZE_HARDIRQ_H */
diff --git a/arch/microblaze/include/asm/hw_irq.h b/arch/microblaze/include/asm/hw_irq.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/arch/microblaze/include/asm/hw_irq.h
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
new file mode 100644
index 000000000000..cfab0342588d
--- /dev/null
+++ b/arch/microblaze/include/asm/io.h
@@ -0,0 +1,209 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_IO_H
10#define _ASM_MICROBLAZE_IO_H
11
12#include <asm/byteorder.h>
13#include <asm/page.h>
14#include <linux/types.h>
15#include <asm/page.h>
16
17#define IO_SPACE_LIMIT (0xFFFFFFFF)
18
19static inline unsigned char __raw_readb(const volatile void __iomem *addr)
20{
21 return *(volatile unsigned char __force *)addr;
22}
23static inline unsigned short __raw_readw(const volatile void __iomem *addr)
24{
25 return *(volatile unsigned short __force *)addr;
26}
27static inline unsigned int __raw_readl(const volatile void __iomem *addr)
28{
29 return *(volatile unsigned int __force *)addr;
30}
31static inline unsigned long __raw_readq(const volatile void __iomem *addr)
32{
33 return *(volatile unsigned long __force *)addr;
34}
35static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr)
36{
37 *(volatile unsigned char __force *)addr = v;
38}
39static inline void __raw_writew(unsigned short v, volatile void __iomem *addr)
40{
41 *(volatile unsigned short __force *)addr = v;
42}
43static inline void __raw_writel(unsigned int v, volatile void __iomem *addr)
44{
45 *(volatile unsigned int __force *)addr = v;
46}
47static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
48{
49 *(volatile unsigned long __force *)addr = v;
50}
51
52/*
53 * read (readb, readw, readl, readq) and write (writeb, writew,
54 * writel, writeq) accessors are for PCI and thus littel endian.
55 * Linux 2.4 for Microblaze had this wrong.
56 */
57static inline unsigned char readb(const volatile void __iomem *addr)
58{
59 return *(volatile unsigned char __force *)addr;
60}
61static inline unsigned short readw(const volatile void __iomem *addr)
62{
63 return le16_to_cpu(*(volatile unsigned short __force *)addr);
64}
65static inline unsigned int readl(const volatile void __iomem *addr)
66{
67 return le32_to_cpu(*(volatile unsigned int __force *)addr);
68}
69static inline void writeb(unsigned char v, volatile void __iomem *addr)
70{
71 *(volatile unsigned char __force *)addr = v;
72}
73static inline void writew(unsigned short v, volatile void __iomem *addr)
74{
75 *(volatile unsigned short __force *)addr = cpu_to_le16(v);
76}
77static inline void writel(unsigned int v, volatile void __iomem *addr)
78{
79 *(volatile unsigned int __force *)addr = cpu_to_le32(v);
80}
81
82/* ioread and iowrite variants. thease are for now same as __raw_
83 * variants of accessors. we might check for endianess in the feature
84 */
85#define ioread8(addr) __raw_readb((u8 *)(addr))
86#define ioread16(addr) __raw_readw((u16 *)(addr))
87#define ioread32(addr) __raw_readl((u32 *)(addr))
88#define iowrite8(v, addr) __raw_writeb((u8)(v), (u8 *)(addr))
89#define iowrite16(v, addr) __raw_writew((u16)(v), (u16 *)(addr))
90#define iowrite32(v, addr) __raw_writel((u32)(v), (u32 *)(addr))
91
92/* These are the definitions for the x86 IO instructions
93 * inb/inw/inl/outb/outw/outl, the "string" versions
94 * insb/insw/insl/outsb/outsw/outsl, and the "pausing" versions
95 * inb_p/inw_p/...
96 * The macros don't do byte-swapping.
97 */
98#define inb(port) readb((u8 *)((port)))
99#define outb(val, port) writeb((val), (u8 *)((unsigned long)(port)))
100#define inw(port) readw((u16 *)((port)))
101#define outw(val, port) writew((val), (u16 *)((unsigned long)(port)))
102#define inl(port) readl((u32 *)((port)))
103#define outl(val, port) writel((val), (u32 *)((unsigned long)(port)))
104
105#define inb_p(port) inb((port))
106#define outb_p(val, port) outb((val), (port))
107#define inw_p(port) inw((port))
108#define outw_p(val, port) outw((val), (port))
109#define inl_p(port) inl((port))
110#define outl_p(val, port) outl((val), (port))
111
112#define memset_io(a, b, c) memset((void *)(a), (b), (c))
113#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c))
114#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c))
115
116/**
117 * virt_to_phys - map virtual addresses to physical
118 * @address: address to remap
119 *
120 * The returned physical address is the physical (CPU) mapping for
121 * the memory address given. It is only valid to use this function on
122 * addresses directly mapped or allocated via kmalloc.
123 *
124 * This function does not give bus mappings for DMA transfers. In
125 * almost all conceivable cases a device driver should not be using
126 * this function
127 */
128static inline unsigned long __iomem virt_to_phys(volatile void *address)
129{
130 return __pa((unsigned long)address);
131}
132
133#define virt_to_bus virt_to_phys
134
135/**
136 * phys_to_virt - map physical address to virtual
137 * @address: address to remap
138 *
139 * The returned virtual address is a current CPU mapping for
140 * the memory address given. It is only valid to use this function on
141 * addresses that have a kernel mapping
142 *
143 * This function does not handle bus mappings for DMA transfers. In
144 * almost all conceivable cases a device driver should not be using
145 * this function
146 */
147static inline void *phys_to_virt(unsigned long address)
148{
149 return (void *)__va(address);
150}
151
152#define bus_to_virt(a) phys_to_virt(a)
153
154static inline void __iomem *__ioremap(phys_addr_t address, unsigned long size,
155 unsigned long flags)
156{
157 return (void *)address;
158}
159
160#define ioremap(physaddr, size) ((void __iomem *)(unsigned long)(physaddr))
161#define iounmap(addr) ((void)0)
162#define ioremap_nocache(physaddr, size) ioremap(physaddr, size)
163
164/*
165 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
166 * access
167 */
168#define xlate_dev_mem_ptr(p) __va(p)
169
170/*
171 * Convert a virtual cached pointer to an uncached pointer
172 */
173#define xlate_dev_kmem_ptr(p) p
174
175/*
176 * Big Endian
177 */
178#define out_be32(a, v) __raw_writel((v), (void __iomem __force *)(a))
179#define out_be16(a, v) __raw_writew((v), (a))
180
181#define in_be32(a) __raw_readl((const void __iomem __force *)(a))
182#define in_be16(a) __raw_readw(a)
183
184/*
185 * Little endian
186 */
187
188#define out_le32(a, v) __raw_writel(__cpu_to_le32(v), (a));
189#define out_le16(a, v) __raw_writew(__cpu_to_le16(v), (a))
190
191#define in_le32(a) __le32_to_cpu(__raw_readl(a))
192#define in_le16(a) __le16_to_cpu(__raw_readw(a))
193
194/* Byte ops */
195#define out_8(a, v) __raw_writeb((v), (a))
196#define in_8(a) __raw_readb(a)
197
198/* FIXME */
199static inline void __iomem *ioport_map(unsigned long port, unsigned int len)
200{
201 return (void __iomem *) (port);
202}
203
204static inline void ioport_unmap(void __iomem *addr)
205{
206 /* Nothing to do */
207}
208
209#endif /* _ASM_MICROBLAZE_IO_H */
diff --git a/arch/microblaze/include/asm/ioctl.h b/arch/microblaze/include/asm/ioctl.h
new file mode 100644
index 000000000000..b279fe06dfe5
--- /dev/null
+++ b/arch/microblaze/include/asm/ioctl.h
@@ -0,0 +1 @@
#include <asm-generic/ioctl.h>
diff --git a/arch/microblaze/include/asm/ioctls.h b/arch/microblaze/include/asm/ioctls.h
new file mode 100644
index 000000000000..03582b249204
--- /dev/null
+++ b/arch/microblaze/include/asm/ioctls.h
@@ -0,0 +1,91 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_IOCTLS_H
10#define _ASM_MICROBLAZE_IOCTLS_H
11
12#include <linux/ioctl.h>
13
14/* 0x54 is just a magic number to make these relatively unique ('T') */
15
16#define TCGETS 0x5401
17#define TCSETS 0x5402
18#define TCSETSW 0x5403
19#define TCSETSF 0x5404
20#define TCGETA 0x5405
21#define TCSETA 0x5406
22#define TCSETAW 0x5407
23#define TCSETAF 0x5408
24#define TCSBRK 0x5409
25#define TCXONC 0x540A
26#define TCFLSH 0x540B
27#define TIOCEXCL 0x540C
28#define TIOCNXCL 0x540D
29#define TIOCSCTTY 0x540E
30#define TIOCGPGRP 0x540F
31#define TIOCSPGRP 0x5410
32#define TIOCOUTQ 0x5411
33#define TIOCSTI 0x5412
34#define TIOCGWINSZ 0x5413
35#define TIOCSWINSZ 0x5414
36#define TIOCMGET 0x5415
37#define TIOCMBIS 0x5416
38#define TIOCMBIC 0x5417
39#define TIOCMSET 0x5418
40#define TIOCGSOFTCAR 0x5419
41#define TIOCSSOFTCAR 0x541A
42#define FIONREAD 0x541B
43#define TIOCINQ FIONREAD
44#define TIOCLINUX 0x541C
45#define TIOCCONS 0x541D
46#define TIOCGSERIAL 0x541E
47#define TIOCSSERIAL 0x541F
48#define TIOCPKT 0x5420
49#define FIONBIO 0x5421
50#define TIOCNOTTY 0x5422
51#define TIOCSETD 0x5423
52#define TIOCGETD 0x5424
53#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */
54#define TIOCTTYGSTRUCT 0x5426 /* For debugging only */
55#define TIOCSBRK 0x5427 /* BSD compatibility */
56#define TIOCCBRK 0x5428 /* BSD compatibility */
57#define TIOCGSID 0x5429 /* Return the session ID of FD */
58/* Get Pty Number (of pty-mux device) */
59#define TIOCGPTN _IOR('T', 0x30, unsigned int)
60#define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */
61
62#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
63#define FIOCLEX 0x5451
64#define FIOASYNC 0x5452
65#define TIOCSERCONFIG 0x5453
66#define TIOCSERGWILD 0x5454
67#define TIOCSERSWILD 0x5455
68#define TIOCGLCKTRMIOS 0x5456
69#define TIOCSLCKTRMIOS 0x5457
70#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
71#define TIOCSERGETLSR 0x5459 /* Get line status register */
72#define TIOCSERGETMULTI 0x545A /* Get multiport config */
73#define TIOCSERSETMULTI 0x545B /* Set multiport config */
74
75#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
76#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
77
78#define FIOQSIZE 0x545E
79
80/* Used for packet mode */
81#define TIOCPKT_DATA 0
82#define TIOCPKT_FLUSHREAD 1
83#define TIOCPKT_FLUSHWRITE 2
84#define TIOCPKT_STOP 4
85#define TIOCPKT_START 8
86#define TIOCPKT_NOSTOP 16
87#define TIOCPKT_DOSTOP 32
88
89#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
90
91#endif /* _ASM_MICROBLAZE_IOCTLS_H */
diff --git a/arch/microblaze/include/asm/ipc.h b/arch/microblaze/include/asm/ipc.h
new file mode 100644
index 000000000000..a46e3d9c2a3f
--- /dev/null
+++ b/arch/microblaze/include/asm/ipc.h
@@ -0,0 +1 @@
#include <asm-generic/ipc.h>
diff --git a/arch/microblaze/include/asm/ipcbuf.h b/arch/microblaze/include/asm/ipcbuf.h
new file mode 100644
index 000000000000..b056fa420654
--- /dev/null
+++ b/arch/microblaze/include/asm/ipcbuf.h
@@ -0,0 +1,36 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_IPCBUF_H
10#define _ASM_MICROBLAZE_IPCBUF_H
11
12/*
13 * The user_ipc_perm structure for microblaze architecture.
14 * Note extra padding because this structure is passed back and forth
15 * between kernel and user space.
16 *
17 * Pad space is left for:
18 * - 32-bit mode_t and seq
19 * - 2 miscellaneous 32-bit values
20 */
21
22struct ipc64_perm {
23 __kernel_key_t key;
24 __kernel_uid32_t uid;
25 __kernel_gid32_t gid;
26 __kernel_uid32_t cuid;
27 __kernel_gid32_t cgid;
28 __kernel_mode_t mode;
29 unsigned short __pad1;
30 unsigned short seq;
31 unsigned short __pad2;
32 unsigned long __unused1;
33 unsigned long __unused2;
34};
35
36#endif /* _ASM_MICROBLAZE_IPCBUF_H */
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
new file mode 100644
index 000000000000..db515deaa720
--- /dev/null
+++ b/arch/microblaze/include/asm/irq.h
@@ -0,0 +1,47 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_IRQ_H
10#define _ASM_MICROBLAZE_IRQ_H
11
12#define NR_IRQS 32
13
14#include <linux/interrupt.h>
15
16extern unsigned int nr_irq;
17
18#define NO_IRQ (-1)
19
20static inline int irq_canonicalize(int irq)
21{
22 return irq;
23}
24
25struct pt_regs;
26extern void do_IRQ(struct pt_regs *regs);
27
28/* irq_of_parse_and_map - Parse and Map an interrupt into linux virq space
29 * @device: Device node of the device whose interrupt is to be mapped
30 * @index: Index of the interrupt to map
31 *
32 * This function is a wrapper that chains of_irq_map_one() and
33 * irq_create_of_mapping() to make things easier to callers
34 */
35struct device_node;
36extern unsigned int irq_of_parse_and_map(struct device_node *dev, int index);
37
38/** FIXME - not implement
39 * irq_dispose_mapping - Unmap an interrupt
40 * @virq: linux virq number of the interrupt to unmap
41 */
42static inline void irq_dispose_mapping(unsigned int virq)
43{
44 return;
45}
46
47#endif /* _ASM_MICROBLAZE_IRQ_H */
diff --git a/arch/microblaze/include/asm/irq_regs.h b/arch/microblaze/include/asm/irq_regs.h
new file mode 100644
index 000000000000..3dd9c0b70270
--- /dev/null
+++ b/arch/microblaze/include/asm/irq_regs.h
@@ -0,0 +1 @@
#include <asm-generic/irq_regs.h>
diff --git a/arch/microblaze/include/asm/irqflags.h b/arch/microblaze/include/asm/irqflags.h
new file mode 100644
index 000000000000..dea65645a4f8
--- /dev/null
+++ b/arch/microblaze/include/asm/irqflags.h
@@ -0,0 +1,123 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_IRQFLAGS_H
10#define _ASM_MICROBLAZE_IRQFLAGS_H
11
12#include <linux/irqflags.h>
13
14# if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
15
16# define local_irq_save(flags) \
17 do { \
18 asm volatile ("# local_irq_save \n\t" \
19 "msrclr %0, %1 \n\t" \
20 "nop \n\t" \
21 : "=r"(flags) \
22 : "i"(MSR_IE) \
23 : "memory"); \
24 } while (0)
25
26# define local_irq_disable() \
27 do { \
28 asm volatile ("# local_irq_disable \n\t" \
29 "msrclr r0, %0 \n\t" \
30 "nop \n\t" \
31 : \
32 : "i"(MSR_IE) \
33 : "memory"); \
34 } while (0)
35
36# define local_irq_enable() \
37 do { \
38 asm volatile ("# local_irq_enable \n\t" \
39 "msrset r0, %0 \n\t" \
40 "nop \n\t" \
41 : \
42 : "i"(MSR_IE) \
43 : "memory"); \
44 } while (0)
45
46# else /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR == 0 */
47
48# define local_irq_save(flags) \
49 do { \
50 register unsigned tmp; \
51 asm volatile ("# local_irq_save \n\t" \
52 "mfs %0, rmsr \n\t" \
53 "nop \n\t" \
54 "andi %1, %0, %2 \n\t" \
55 "mts rmsr, %1 \n\t" \
56 "nop \n\t" \
57 : "=r"(flags), "=r" (tmp) \
58 : "i"(~MSR_IE) \
59 : "memory"); \
60 } while (0)
61
62# define local_irq_disable() \
63 do { \
64 register unsigned tmp; \
65 asm volatile ("# local_irq_disable \n\t" \
66 "mfs %0, rmsr \n\t" \
67 "nop \n\t" \
68 "andi %0, %0, %1 \n\t" \
69 "mts rmsr, %0 \n\t" \
70 "nop \n\t" \
71 : "=r"(tmp) \
72 : "i"(~MSR_IE) \
73 : "memory"); \
74 } while (0)
75
76# define local_irq_enable() \
77 do { \
78 register unsigned tmp; \
79 asm volatile ("# local_irq_enable \n\t" \
80 "mfs %0, rmsr \n\t" \
81 "nop \n\t" \
82 "ori %0, %0, %1 \n\t" \
83 "mts rmsr, %0 \n\t" \
84 "nop \n\t" \
85 : "=r"(tmp) \
86 : "i"(MSR_IE) \
87 : "memory"); \
88 } while (0)
89
90# endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
91
92#define local_save_flags(flags) \
93 do { \
94 asm volatile ("# local_save_flags \n\t" \
95 "mfs %0, rmsr \n\t" \
96 "nop \n\t" \
97 : "=r"(flags) \
98 : \
99 : "memory"); \
100 } while (0)
101
102#define local_irq_restore(flags) \
103 do { \
104 asm volatile ("# local_irq_restore \n\t"\
105 "mts rmsr, %0 \n\t" \
106 "nop \n\t" \
107 : \
108 : "r"(flags) \
109 : "memory"); \
110 } while (0)
111
112static inline int irqs_disabled(void)
113{
114 unsigned long flags;
115
116 local_save_flags(flags);
117 return ((flags & MSR_IE) == 0);
118}
119
120#define raw_irqs_disabled irqs_disabled
121#define raw_irqs_disabled_flags(flags) ((flags) == 0)
122
123#endif /* _ASM_MICROBLAZE_IRQFLAGS_H */
diff --git a/arch/microblaze/include/asm/kdebug.h b/arch/microblaze/include/asm/kdebug.h
new file mode 100644
index 000000000000..6ece1b037665
--- /dev/null
+++ b/arch/microblaze/include/asm/kdebug.h
@@ -0,0 +1 @@
#include <asm-generic/kdebug.h>
diff --git a/arch/microblaze/include/asm/kmap_types.h b/arch/microblaze/include/asm/kmap_types.h
new file mode 100644
index 000000000000..4d7e222f5dd7
--- /dev/null
+++ b/arch/microblaze/include/asm/kmap_types.h
@@ -0,0 +1,29 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_KMAP_TYPES_H
10#define _ASM_MICROBLAZE_KMAP_TYPES_H
11
12enum km_type {
13 KM_BOUNCE_READ,
14 KM_SKB_SUNRPC_DATA,
15 KM_SKB_DATA_SOFTIRQ,
16 KM_USER0,
17 KM_USER1,
18 KM_BIO_SRC_IRQ,
19 KM_BIO_DST_IRQ,
20 KM_PTE0,
21 KM_PTE1,
22 KM_IRQ0,
23 KM_IRQ1,
24 KM_SOFTIRQ0,
25 KM_SOFTIRQ1,
26 KM_TYPE_NR,
27};
28
29#endif /* _ASM_MICROBLAZE_KMAP_TYPES_H */
diff --git a/arch/microblaze/include/asm/linkage.h b/arch/microblaze/include/asm/linkage.h
new file mode 100644
index 000000000000..3a8e36d057eb
--- /dev/null
+++ b/arch/microblaze/include/asm/linkage.h
@@ -0,0 +1,15 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_LINKAGE_H
10#define _ASM_MICROBLAZE_LINKAGE_H
11
12#define __ALIGN .align 4
13#define __ALIGN_STR ".align 4"
14
15#endif /* _ASM_MICROBLAZE_LINKAGE_H */
diff --git a/arch/microblaze/include/asm/lmb.h b/arch/microblaze/include/asm/lmb.h
new file mode 100644
index 000000000000..a0a0a929c293
--- /dev/null
+++ b/arch/microblaze/include/asm/lmb.h
@@ -0,0 +1,17 @@
1/*
2 * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_LMB_H
10#define _ASM_MICROBLAZE_LMB_H
11
12/* LMB limit is OFF */
13#define LMB_REAL_LIMIT 0xFFFFFFFF
14
15#endif /* _ASM_MICROBLAZE_LMB_H */
16
17
diff --git a/arch/microblaze/include/asm/local.h b/arch/microblaze/include/asm/local.h
new file mode 100644
index 000000000000..c11c530f74d0
--- /dev/null
+++ b/arch/microblaze/include/asm/local.h
@@ -0,0 +1 @@
#include <asm-generic/local.h>
diff --git a/arch/microblaze/include/asm/mman.h b/arch/microblaze/include/asm/mman.h
new file mode 100644
index 000000000000..4914b1329445
--- /dev/null
+++ b/arch/microblaze/include/asm/mman.h
@@ -0,0 +1,25 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_MMAN_H
10#define _ASM_MICROBLAZE_MMAN_H
11
12#include <asm-generic/mman.h>
13
14#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
15#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
16#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
17#define MAP_LOCKED 0x2000 /* pages are locked */
18#define MAP_NORESERVE 0x4000 /* don't check for reservations */
19#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
20#define MAP_NONBLOCK 0x10000 /* do not block on IO */
21
22#define MCL_CURRENT 1 /* lock all current mappings */
23#define MCL_FUTURE 2 /* lock all future mappings */
24
25#endif /* _ASM_MICROBLAZE_MMAN_H */
diff --git a/arch/microblaze/include/asm/mmu.h b/arch/microblaze/include/asm/mmu.h
new file mode 100644
index 000000000000..0e0431d61635
--- /dev/null
+++ b/arch/microblaze/include/asm/mmu.h
@@ -0,0 +1,19 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_MMU_H
10#define _ASM_MICROBLAZE_MMU_H
11
12#ifndef __ASSEMBLY__
13typedef struct {
14 struct vm_list_struct *vmlist;
15 unsigned long end_brk;
16} mm_context_t;
17#endif /* __ASSEMBLY__ */
18
19#endif /* _ASM_MICROBLAZE_MMU_H */
diff --git a/arch/microblaze/include/asm/mmu_context.h b/arch/microblaze/include/asm/mmu_context.h
new file mode 100644
index 000000000000..150ca01b74ba
--- /dev/null
+++ b/arch/microblaze/include/asm/mmu_context.h
@@ -0,0 +1,21 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_MMU_CONTEXT_H
10#define _ASM_MICROBLAZE_MMU_CONTEXT_H
11
12# define init_new_context(tsk, mm) ({ 0; })
13
14# define enter_lazy_tlb(mm, tsk) do {} while (0)
15# define change_mm_context(old, ctx, _pml4) do {} while (0)
16# define destroy_context(mm) do {} while (0)
17# define deactivate_mm(tsk, mm) do {} while (0)
18# define switch_mm(prev, next, tsk) do {} while (0)
19# define activate_mm(prev, next) do {} while (0)
20
21#endif /* _ASM_MICROBLAZE_MMU_CONTEXT_H */
diff --git a/arch/microblaze/include/asm/module.h b/arch/microblaze/include/asm/module.h
new file mode 100644
index 000000000000..914565a90315
--- /dev/null
+++ b/arch/microblaze/include/asm/module.h
@@ -0,0 +1,37 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_MODULE_H
10#define _ASM_MICROBLAZE_MODULE_H
11
12/* Microblaze Relocations */
13#define R_MICROBLAZE_NONE 0
14#define R_MICROBLAZE_32 1
15#define R_MICROBLAZE_32_PCREL 2
16#define R_MICROBLAZE_64_PCREL 3
17#define R_MICROBLAZE_32_PCREL_LO 4
18#define R_MICROBLAZE_64 5
19#define R_MICROBLAZE_32_LO 6
20#define R_MICROBLAZE_SRO32 7
21#define R_MICROBLAZE_SRW32 8
22#define R_MICROBLAZE_64_NONE 9
23#define R_MICROBLAZE_32_SYM_OP_SYM 10
24/* Keep this the last entry. */
25#define R_MICROBLAZE_NUM 11
26
27struct mod_arch_specific {
28 int foo;
29};
30
31#define Elf_Shdr Elf32_Shdr
32#define Elf_Sym Elf32_Sym
33#define Elf_Ehdr Elf32_Ehdr
34
35typedef struct { volatile int counter; } module_t;
36
37#endif /* _ASM_MICROBLAZE_MODULE_H */
diff --git a/arch/microblaze/include/asm/msgbuf.h b/arch/microblaze/include/asm/msgbuf.h
new file mode 100644
index 000000000000..09dd97097211
--- /dev/null
+++ b/arch/microblaze/include/asm/msgbuf.h
@@ -0,0 +1,31 @@
1#ifndef _ASM_MICROBLAZE_MSGBUF_H
2#define _ASM_MICROBLAZE_MSGBUF_H
3
4/*
5 * The msqid64_ds structure for microblaze architecture.
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
8 *
9 * Pad space is left for:
10 * - 64-bit time_t to solve y2038 problem
11 * - 2 miscellaneous 32-bit values
12 */
13
14struct msqid64_ds {
15 struct ipc64_perm msg_perm;
16 __kernel_time_t msg_stime; /* last msgsnd time */
17 unsigned long __unused1;
18 __kernel_time_t msg_rtime; /* last msgrcv time */
19 unsigned long __unused2;
20 __kernel_time_t msg_ctime; /* last change time */
21 unsigned long __unused3;
22 unsigned long msg_cbytes; /* current number of bytes on queue */
23 unsigned long msg_qnum; /* number of messages in queue */
24 unsigned long msg_qbytes; /* max number of bytes on queue */
25 __kernel_pid_t msg_lspid; /* pid of last msgsnd */
26 __kernel_pid_t msg_lrpid; /* last receive pid */
27 unsigned long __unused4;
28 unsigned long __unused5;
29};
30
31#endif /* _ASM_MICROBLAZE_MSGBUF_H */
diff --git a/arch/microblaze/include/asm/mutex.h b/arch/microblaze/include/asm/mutex.h
new file mode 100644
index 000000000000..ff6101aa2c71
--- /dev/null
+++ b/arch/microblaze/include/asm/mutex.h
@@ -0,0 +1 @@
#include <asm-generic/mutex-dec.h>
diff --git a/arch/microblaze/include/asm/namei.h b/arch/microblaze/include/asm/namei.h
new file mode 100644
index 000000000000..61d60b8a07d5
--- /dev/null
+++ b/arch/microblaze/include/asm/namei.h
@@ -0,0 +1,22 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_NAMEI_H
10#define _ASM_MICROBLAZE_NAMEI_H
11
12#ifdef __KERNEL__
13
14/* This dummy routine maybe changed to something useful
15 * for /usr/gnemul/ emulation stuff.
16 * Look at asm-sparc/namei.h for details.
17 */
18#define __emul_prefix() NULL
19
20#endif /* __KERNEL__ */
21
22#endif /* _ASM_MICROBLAZE_NAMEI_H */
diff --git a/arch/microblaze/include/asm/of_device.h b/arch/microblaze/include/asm/of_device.h
new file mode 100644
index 000000000000..ba917cfaefe6
--- /dev/null
+++ b/arch/microblaze/include/asm/of_device.h
@@ -0,0 +1,45 @@
1/*
2 * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
3 *
4 * based on PowerPC of_device.h
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#ifndef _ASM_MICROBLAZE_OF_DEVICE_H
12#define _ASM_MICROBLAZE_OF_DEVICE_H
13#ifdef __KERNEL__
14
15#include <linux/device.h>
16#include <linux/of.h>
17
18/*
19 * The of_device is a kind of "base class" that is a superset of
20 * struct device for use by devices attached to an OF node and
21 * probed using OF properties.
22 */
23struct of_device {
24 struct device_node *node; /* to be obsoleted */
25 u64 dma_mask; /* DMA mask */
26 struct device dev; /* Generic device interface */
27};
28
29extern ssize_t of_device_get_modalias(struct of_device *ofdev,
30 char *str, ssize_t len);
31
32extern struct of_device *of_device_alloc(struct device_node *np,
33 const char *bus_id,
34 struct device *parent);
35
36extern int of_device_uevent(struct device *dev,
37 struct kobj_uevent_env *env);
38
39extern void of_device_make_bus_id(struct of_device *dev);
40
41/* This is just here during the transition */
42#include <linux/of_device.h>
43
44#endif /* __KERNEL__ */
45#endif /* _ASM_MICROBLAZE_OF_DEVICE_H */
diff --git a/arch/microblaze/include/asm/of_platform.h b/arch/microblaze/include/asm/of_platform.h
new file mode 100644
index 000000000000..187c0eedaece
--- /dev/null
+++ b/arch/microblaze/include/asm/of_platform.h
@@ -0,0 +1,64 @@
1/*
2 * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
3 * <benh@kernel.crashing.org>
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 */
10
11#ifndef _ASM_MICROBLAZE_OF_PLATFORM_H
12#define _ASM_MICROBLAZE_OF_PLATFORM_H
13
14/* This is just here during the transition */
15#include <linux/of_platform.h>
16
17/*
18 * The list of OF IDs below is used for matching bus types in the
19 * system whose devices are to be exposed as of_platform_devices.
20 *
21 * This is the default list valid for most platforms. This file provides
22 * functions who can take an explicit list if necessary though
23 *
24 * The search is always performed recursively looking for children of
25 * the provided device_node and recursively if such a children matches
26 * a bus type in the list
27 */
28
29static const struct of_device_id of_default_bus_ids[] = {
30 { .type = "soc", },
31 { .compatible = "soc", },
32 { .type = "plb5", },
33 { .type = "plb4", },
34 { .type = "opb", },
35 { .type = "simple", },
36 {},
37};
38
39/* Platform drivers register/unregister */
40static inline int of_register_platform_driver(struct of_platform_driver *drv)
41{
42 return of_register_driver(drv, &of_platform_bus_type);
43}
44static inline void of_unregister_platform_driver(struct of_platform_driver *drv)
45{
46 of_unregister_driver(drv);
47}
48
49/* Platform devices and busses creation */
50extern struct of_device *of_platform_device_create(struct device_node *np,
51 const char *bus_id,
52 struct device *parent);
53/* pseudo "matches" value to not do deep probe */
54#define OF_NO_DEEP_PROBE ((struct of_device_id *)-1)
55
56extern int of_platform_bus_probe(struct device_node *root,
57 const struct of_device_id *matches,
58 struct device *parent);
59
60extern struct of_device *of_find_device_by_phandle(phandle ph);
61
62extern void of_instantiate_rtc(void);
63
64#endif /* _ASM_MICROBLAZE_OF_PLATFORM_H */
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
new file mode 100644
index 000000000000..7238dcfcc517
--- /dev/null
+++ b/arch/microblaze/include/asm/page.h
@@ -0,0 +1,140 @@
1/*
2 * Copyright (C) 2008 Michal Simek
3 * Copyright (C) 2008 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 * Changes for MMU support:
6 * Copyright (C) 2007 Xilinx, Inc. All rights reserved.
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12
13#ifndef _ASM_MICROBLAZE_PAGE_H
14#define _ASM_MICROBLAZE_PAGE_H
15
16#include <linux/pfn.h>
17#include <asm/setup.h>
18
19/* PAGE_SHIFT determines the page size */
20#define PAGE_SHIFT (12)
21#define PAGE_SIZE (1UL << PAGE_SHIFT)
22#define PAGE_MASK (~(PAGE_SIZE-1))
23
24#ifdef __KERNEL__
25
26#ifndef __ASSEMBLY__
27
28#define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
29#define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1)))
30
31/* align addr on a size boundary - adjust address up/down if needed */
32#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((size)-1)))
33#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1)))
34
35/* align addr on a size boundary - adjust address up if needed */
36#define _ALIGN(addr, size) _ALIGN_UP(addr, size)
37
38/*
39 * PAGE_OFFSET -- the first address of the first page of memory. When not
40 * using MMU this corresponds to the first free page in physical memory (aligned
41 * on a page boundary).
42 */
43extern unsigned int __page_offset;
44#define PAGE_OFFSET __page_offset
45
46#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE)
47#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
48#define free_user_page(page, addr) free_page(addr)
49
50#define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE)
51
52
53#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE)
54#define copy_user_page(vto, vfrom, vaddr, topg) \
55 memcpy((vto), (vfrom), PAGE_SIZE)
56
57/*
58 * These are used to make use of C type-checking..
59 */
60typedef struct page *pgtable_t;
61typedef struct { unsigned long pte; } pte_t;
62typedef struct { unsigned long pgprot; } pgprot_t;
63typedef struct { unsigned long ste[64]; } pmd_t;
64typedef struct { pmd_t pue[1]; } pud_t;
65typedef struct { pud_t pge[1]; } pgd_t;
66
67
68#define pte_val(x) ((x).pte)
69#define pgprot_val(x) ((x).pgprot)
70#define pmd_val(x) ((x).ste[0])
71#define pud_val(x) ((x).pue[0])
72#define pgd_val(x) ((x).pge[0])
73
74#define __pte(x) ((pte_t) { (x) })
75#define __pmd(x) ((pmd_t) { (x) })
76#define __pgd(x) ((pgd_t) { (x) })
77#define __pgprot(x) ((pgprot_t) { (x) })
78
79/**
80 * Conversions for virtual address, physical address, pfn, and struct
81 * page are defined in the following files.
82 *
83 * virt -+
84 * | asm-microblaze/page.h
85 * phys -+
86 * | linux/pfn.h
87 * pfn -+
88 * | asm-generic/memory_model.h
89 * page -+
90 *
91 */
92
93extern unsigned long max_low_pfn;
94extern unsigned long min_low_pfn;
95extern unsigned long max_pfn;
96
97#define __pa(vaddr) ((unsigned long) (vaddr))
98#define __va(paddr) ((void *) (paddr))
99
100#define phys_to_pfn(phys) (PFN_DOWN(phys))
101#define pfn_to_phys(pfn) (PFN_PHYS(pfn))
102
103#define virt_to_pfn(vaddr) (phys_to_pfn((__pa(vaddr))))
104#define pfn_to_virt(pfn) __va(pfn_to_phys((pfn)))
105
106#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr)))
107#define page_to_virt(page) (pfn_to_virt(page_to_pfn(page)))
108
109#define page_to_phys(page) (pfn_to_phys(page_to_pfn(page)))
110#define page_to_bus(page) (page_to_phys(page))
111#define phys_to_page(paddr) (pfn_to_page(phys_to_pfn(paddr)))
112
113extern unsigned int memory_start;
114extern unsigned int memory_end;
115extern unsigned int memory_size;
116
117#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_mapnr)
118
119#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
120
121#else
122#define tophys(rd, rs) (addik rd, rs, 0)
123#define tovirt(rd, rs) (addik rd, rs, 0)
124#endif /* __ASSEMBLY__ */
125
126#define virt_addr_valid(vaddr) (pfn_valid(virt_to_pfn(vaddr)))
127
128/* Convert between virtual and physical address for MMU. */
129/* Handle MicroBlaze processor with virtual memory. */
130#define __virt_to_phys(addr) addr
131#define __phys_to_virt(addr) addr
132
133#define TOPHYS(addr) __virt_to_phys(addr)
134
135#endif /* __KERNEL__ */
136
137#include <asm-generic/memory_model.h>
138#include <asm-generic/page.h>
139
140#endif /* _ASM_MICROBLAZE_PAGE_H */
diff --git a/arch/microblaze/include/asm/param.h b/arch/microblaze/include/asm/param.h
new file mode 100644
index 000000000000..8c538a49616d
--- /dev/null
+++ b/arch/microblaze/include/asm/param.h
@@ -0,0 +1,30 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_PARAM_H
10#define _ASM_MICROBLAZE_PARAM_H
11
12#ifdef __KERNEL__
13#define HZ CONFIG_HZ /* internal kernel timer frequency */
14#define USER_HZ 100 /* for user interfaces in "ticks" */
15#define CLOCKS_PER_SEC (USER_HZ) /* frequency at which times() counts */
16#endif /* __KERNEL__ */
17
18#ifndef HZ
19#define HZ 100
20#endif
21
22#define EXEC_PAGESIZE 4096
23
24#ifndef NOGROUP
25#define NOGROUP (-1)
26#endif
27
28#define MAXHOSTNAMELEN 64 /* max length of hostname */
29
30#endif /* _ASM_MICROBLAZE_PARAM_H */
diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h
new file mode 100644
index 000000000000..7ad28f6f5f1a
--- /dev/null
+++ b/arch/microblaze/include/asm/pci-bridge.h
@@ -0,0 +1 @@
#include <linux/pci.h>
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
new file mode 100644
index 000000000000..ca03794cf3f0
--- /dev/null
+++ b/arch/microblaze/include/asm/pci.h
@@ -0,0 +1 @@
#include <linux/io.h>
diff --git a/arch/microblaze/include/asm/percpu.h b/arch/microblaze/include/asm/percpu.h
new file mode 100644
index 000000000000..06a959d67234
--- /dev/null
+++ b/arch/microblaze/include/asm/percpu.h
@@ -0,0 +1 @@
#include <asm-generic/percpu.h>
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
new file mode 100644
index 000000000000..2a4b35484010
--- /dev/null
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -0,0 +1,14 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_PGALLOC_H
10#define _ASM_MICROBLAZE_PGALLOC_H
11
12#define check_pgt_cache() do {} while (0)
13
14#endif /* _ASM_MICROBLAZE_PGALLOC_H */
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
new file mode 100644
index 000000000000..4df31e46568e
--- /dev/null
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -0,0 +1,54 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_PGTABLE_H
10#define _ASM_MICROBLAZE_PGTABLE_H
11
12#include <asm/setup.h>
13
14#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
15 remap_pfn_range(vma, vaddr, pfn, size, prot)
16
17#define pgd_present(pgd) (1) /* pages are always present on non MMU */
18#define pgd_none(pgd) (0)
19#define pgd_bad(pgd) (0)
20#define pgd_clear(pgdp)
21#define kern_addr_valid(addr) (1)
22#define pmd_offset(a, b) ((void *) 0)
23
24#define PAGE_NONE __pgprot(0) /* these mean nothing to non MMU */
25#define PAGE_SHARED __pgprot(0) /* these mean nothing to non MMU */
26#define PAGE_COPY __pgprot(0) /* these mean nothing to non MMU */
27#define PAGE_READONLY __pgprot(0) /* these mean nothing to non MMU */
28#define PAGE_KERNEL __pgprot(0) /* these mean nothing to non MMU */
29
30#define __swp_type(x) (0)
31#define __swp_offset(x) (0)
32#define __swp_entry(typ, off) ((swp_entry_t) { ((typ) | ((off) << 7)) })
33#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
34#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
35
36#ifndef __ASSEMBLY__
37static inline int pte_file(pte_t pte) { return 0; }
38#endif /* __ASSEMBLY__ */
39
40#define ZERO_PAGE(vaddr) ({ BUG(); NULL; })
41
42#define swapper_pg_dir ((pgd_t *) NULL)
43
44#define pgtable_cache_init() do {} while (0)
45
46#define arch_enter_lazy_cpu_mode() do {} while (0)
47
48#ifndef __ASSEMBLY__
49#include <asm-generic/pgtable.h>
50
51void setup_memory(void);
52#endif /* __ASSEMBLY__ */
53
54#endif /* _ASM_MICROBLAZE_PGTABLE_H */
diff --git a/arch/microblaze/include/asm/poll.h b/arch/microblaze/include/asm/poll.h
new file mode 100644
index 000000000000..c98509d3149e
--- /dev/null
+++ b/arch/microblaze/include/asm/poll.h
@@ -0,0 +1 @@
#include <asm-generic/poll.h>
diff --git a/arch/microblaze/include/asm/posix_types.h b/arch/microblaze/include/asm/posix_types.h
new file mode 100644
index 000000000000..b4df41c5dde2
--- /dev/null
+++ b/arch/microblaze/include/asm/posix_types.h
@@ -0,0 +1,73 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_POSIX_TYPES_H
10#define _ASM_MICROBLAZE_POSIX_TYPES_H
11
12/*
13 * This file is generally used by user-level software, so you need to
14 * be a little careful about namespace pollution etc. Also, we cannot
15 * assume GCC is being used.
16 */
17
18typedef unsigned long __kernel_ino_t;
19typedef unsigned int __kernel_mode_t;
20typedef unsigned int __kernel_nlink_t;
21typedef long __kernel_off_t;
22typedef int __kernel_pid_t;
23typedef unsigned int __kernel_ipc_pid_t;
24typedef unsigned int __kernel_uid_t;
25typedef unsigned int __kernel_gid_t;
26typedef unsigned long __kernel_size_t;
27typedef long __kernel_ssize_t;
28typedef int __kernel_ptrdiff_t;
29typedef long __kernel_time_t;
30typedef long __kernel_suseconds_t;
31typedef long __kernel_clock_t;
32typedef int __kernel_timer_t;
33typedef int __kernel_clockid_t;
34typedef int __kernel_daddr_t;
35typedef char *__kernel_caddr_t;
36typedef unsigned short __kernel_uid16_t;
37typedef unsigned short __kernel_gid16_t;
38typedef unsigned int __kernel_uid32_t;
39typedef unsigned int __kernel_gid32_t;
40
41typedef unsigned int __kernel_old_uid_t;
42typedef unsigned int __kernel_old_gid_t;
43typedef unsigned int __kernel_old_dev_t;
44
45#ifdef __GNUC__
46typedef long long __kernel_loff_t;
47#endif
48
49typedef struct {
50#if defined(__KERNEL__) || defined(__USE_ALL)
51 int val[2];
52#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
53 int __val[2];
54#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
55} __kernel_fsid_t;
56
57#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
58
59#undef __FD_SET
60#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
61
62#undef __FD_CLR
63#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
64
65#undef __FD_ISSET
66#define __FD_ISSET(d, set) (!!((set)->fds_bits[__FDELT(d)] & __FDMASK(d)))
67
68#undef __FD_ZERO
69#define __FD_ZERO(fdsetp) (memset(fdsetp, 0, sizeof(*(fd_set *)fdsetp)))
70
71#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
72
73#endif /* _ASM_MICROBLAZE_POSIX_TYPES_H */
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
new file mode 100644
index 000000000000..d8e15434ba21
--- /dev/null
+++ b/arch/microblaze/include/asm/processor.h
@@ -0,0 +1,93 @@
1/*
2 * Copyright (C) 2008 Michal Simek
3 * Copyright (C) 2008 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#ifndef _ASM_MICROBLAZE_PROCESSOR_H
12#define _ASM_MICROBLAZE_PROCESSOR_H
13
14#include <asm/ptrace.h>
15#include <asm/setup.h>
16#include <asm/registers.h>
17#include <asm/segment.h>
18
19# ifndef __ASSEMBLY__
20/* from kernel/cpu/mb.c */
21extern const struct seq_operations cpuinfo_op;
22
23# define cpu_relax() barrier()
24# define cpu_sleep() do {} while (0)
25# define prepare_to_copy(tsk) do {} while (0)
26
27# endif /* __ASSEMBLY__ */
28
29/*
30 * User space process size: memory size
31 *
32 * TASK_SIZE on MMU cpu is usually 1GB. However, on no-MMU arch, both
33 * user processes and the kernel is on the same memory region. They
34 * both share the memory space and that is limited by the amount of
35 * physical memory. thus, we set TASK_SIZE == amount of total memory.
36 */
37# define TASK_SIZE (0x81000000 - 0x80000000)
38
39/*
40 * Default implementation of macro that returns current
41 * instruction pointer ("program counter").
42 */
43# define current_text_addr() ({ __label__ _l; _l: &&_l; })
44
45/*
46 * This decides where the kernel will search for a free chunk of vm
47 * space during mmap's. We won't be using it
48 */
49# define TASK_UNMAPPED_BASE 0
50
51/* definition in include/linux/sched.h */
52struct task_struct;
53
54/* thread_struct is gone. use thread_info instead. */
55struct thread_struct { };
56# define INIT_THREAD { }
57
58/* Do necessary setup to start up a newly executed thread. */
59static inline void start_thread(struct pt_regs *regs,
60 unsigned long pc,
61 unsigned long usp)
62{
63 regs->pc = pc;
64 regs->r1 = usp;
65 regs->kernel_mode = 0;
66}
67
68/* Free all resources held by a thread. */
69static inline void release_thread(struct task_struct *dead_task)
70{
71}
72
73/* Free all resources held by a thread. */
74static inline void exit_thread(void)
75{
76}
77
78extern unsigned long thread_saved_pc(struct task_struct *t);
79
80extern unsigned long get_wchan(struct task_struct *p);
81
82/*
83 * create a kernel thread without removing it from tasklists
84 */
85extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
86
87# define task_pt_regs(tsk) \
88 (((struct pt_regs *)(THREAD_SIZE + task_stack_page(tsk))) - 1)
89
90# define KSTK_EIP(tsk) (0)
91# define KSTK_ESP(tsk) (0)
92
93#endif /* _ASM_MICROBLAZE_PROCESSOR_H */
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
new file mode 100644
index 000000000000..20f7b3a926e8
--- /dev/null
+++ b/arch/microblaze/include/asm/prom.h
@@ -0,0 +1,313 @@
1/*
2 * Definitions for talking to the Open Firmware PROM on
3 * Power Macintosh computers.
4 *
5 * Copyright (C) 1996-2005 Paul Mackerras.
6 *
7 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 */
14
15#ifndef _ASM_MICROBLAZE_PROM_H
16#define _ASM_MICROBLAZE_PROM_H
17#ifdef __KERNEL__
18
19#include <linux/types.h>
20#include <linux/proc_fs.h>
21#include <linux/platform_device.h>
22#include <asm/irq.h>
23#include <asm/atomic.h>
24
25#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
26#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
27
28#define of_compat_cmp(s1, s2, l) strncasecmp((s1), (s2), (l))
29#define of_prop_cmp(s1, s2) strcmp((s1), (s2))
30#define of_node_cmp(s1, s2) strcasecmp((s1), (s2))
31
32/* Definitions used by the flattened device tree */
33#define OF_DT_HEADER 0xd00dfeed /* marker */
34#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
35#define OF_DT_END_NODE 0x2 /* End node */
36#define OF_DT_PROP 0x3 /* Property: name off, size, content */
37#define OF_DT_NOP 0x4 /* nop */
38#define OF_DT_END 0x9
39
40#define OF_DT_VERSION 0x10
41
42/*
43 * This is what gets passed to the kernel by prom_init or kexec
44 *
45 * The dt struct contains the device tree structure, full pathes and
46 * property contents. The dt strings contain a separate block with just
47 * the strings for the property names, and is fully page aligned and
48 * self contained in a page, so that it can be kept around by the kernel,
49 * each property name appears only once in this page (cheap compression)
50 *
51 * the mem_rsvmap contains a map of reserved ranges of physical memory,
52 * passing it here instead of in the device-tree itself greatly simplifies
53 * the job of everybody. It's just a list of u64 pairs (base/size) that
54 * ends when size is 0
55 */
56struct boot_param_header {
57 u32 magic; /* magic word OF_DT_HEADER */
58 u32 totalsize; /* total size of DT block */
59 u32 off_dt_struct; /* offset to structure */
60 u32 off_dt_strings; /* offset to strings */
61 u32 off_mem_rsvmap; /* offset to memory reserve map */
62 u32 version; /* format version */
63 u32 last_comp_version; /* last compatible version */
64 /* version 2 fields below */
65 u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
66 /* version 3 fields below */
67 u32 dt_strings_size; /* size of the DT strings block */
68 /* version 17 fields below */
69 u32 dt_struct_size; /* size of the DT structure block */
70};
71
72typedef u32 phandle;
73typedef u32 ihandle;
74
75struct property {
76 char *name;
77 int length;
78 void *value;
79 struct property *next;
80};
81
82struct device_node {
83 const char *name;
84 const char *type;
85 phandle node;
86 phandle linux_phandle;
87 char *full_name;
88
89 struct property *properties;
90 struct property *deadprops; /* removed properties */
91 struct device_node *parent;
92 struct device_node *child;
93 struct device_node *sibling;
94 struct device_node *next; /* next device of same type */
95 struct device_node *allnext; /* next in list of all nodes */
96 struct proc_dir_entry *pde; /* this node's proc directory */
97 struct kref kref;
98 unsigned long _flags;
99 void *data;
100};
101
102extern struct device_node *of_chosen;
103
104static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
105{
106 return test_bit(flag, &n->_flags);
107}
108
109static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
110{
111 set_bit(flag, &n->_flags);
112}
113
114#define HAVE_ARCH_DEVTREE_FIXUPS
115
116static inline void set_node_proc_entry(struct device_node *dn,
117 struct proc_dir_entry *de)
118{
119 dn->pde = de;
120}
121
122extern struct device_node *allnodes; /* temporary while merging */
123extern rwlock_t devtree_lock; /* temporary while merging */
124
125extern struct device_node *of_find_all_nodes(struct device_node *prev);
126extern struct device_node *of_node_get(struct device_node *node);
127extern void of_node_put(struct device_node *node);
128
129/* For scanning the flat device-tree at boot time */
130extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
131 const char *uname, int depth,
132 void *data),
133 void *data);
134extern void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
135 unsigned long *size);
136extern int __init
137 of_flat_dt_is_compatible(unsigned long node, const char *name);
138extern unsigned long __init of_get_flat_dt_root(void);
139
140/* For updating the device tree at runtime */
141extern void of_attach_node(struct device_node *);
142extern void of_detach_node(struct device_node *);
143
144/* Other Prototypes */
145extern void finish_device_tree(void);
146extern void unflatten_device_tree(void);
147extern int early_uartlite_console(void);
148extern void early_init_devtree(void *);
149extern int machine_is_compatible(const char *compat);
150extern void print_properties(struct device_node *node);
151extern int prom_n_intr_cells(struct device_node *np);
152extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
153extern int prom_add_property(struct device_node *np, struct property *prop);
154extern int prom_remove_property(struct device_node *np, struct property *prop);
155extern int prom_update_property(struct device_node *np,
156 struct property *newprop,
157 struct property *oldprop);
158
159extern struct resource *request_OF_resource(struct device_node *node,
160 int index, const char *name_postfix);
161extern int release_OF_resource(struct device_node *node, int index);
162
163/*
164 * OF address retreival & translation
165 */
166
167/* Helper to read a big number; size is in cells (not bytes) */
168static inline u64 of_read_number(const u32 *cell, int size)
169{
170 u64 r = 0;
171 while (size--)
172 r = (r << 32) | *(cell++);
173 return r;
174}
175
176/* Like of_read_number, but we want an unsigned long result */
177#define of_read_ulong(cell, size) of_read_number(cell, size)
178
179/* Translate an OF address block into a CPU physical address
180 */
181extern u64 of_translate_address(struct device_node *np, const u32 *addr);
182
183/* Extract an address from a device, returns the region size and
184 * the address space flags too. The PCI version uses a BAR number
185 * instead of an absolute index
186 */
187extern const u32 *of_get_address(struct device_node *dev, int index,
188 u64 *size, unsigned int *flags);
189extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
190 u64 *size, unsigned int *flags);
191
192/* Get an address as a resource. Note that if your address is
193 * a PIO address, the conversion will fail if the physical address
194 * can't be internally converted to an IO token with
195 * pci_address_to_pio(), that is because it's either called to early
196 * or it can't be matched to any host bridge IO space
197 */
198extern int of_address_to_resource(struct device_node *dev, int index,
199 struct resource *r);
200extern int of_pci_address_to_resource(struct device_node *dev, int bar,
201 struct resource *r);
202
203/* Parse the ibm,dma-window property of an OF node into the busno, phys and
204 * size parameters.
205 */
206void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
207 unsigned long *busno, unsigned long *phys, unsigned long *size);
208
209extern void kdump_move_device_tree(void);
210
211/* CPU OF node matching */
212struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
213
214/* Get the MAC address */
215extern const void *of_get_mac_address(struct device_node *np);
216
217/*
218 * OF interrupt mapping
219 */
220
221/* This structure is returned when an interrupt is mapped. The controller
222 * field needs to be put() after use
223 */
224
225#define OF_MAX_IRQ_SPEC 4 /* We handle specifiers of at most 4 cells */
226
227struct of_irq {
228 struct device_node *controller; /* Interrupt controller node */
229 u32 size; /* Specifier size */
230 u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
231};
232
233/**
234 * of_irq_map_init - Initialize the irq remapper
235 * @flags: flags defining workarounds to enable
236 *
237 * Some machines have bugs in the device-tree which require certain workarounds
238 * to be applied. Call this before any interrupt mapping attempts to enable
239 * those workarounds.
240 */
241#define OF_IMAP_OLDWORLD_MAC 0x00000001
242#define OF_IMAP_NO_PHANDLE 0x00000002
243
244extern void of_irq_map_init(unsigned int flags);
245
246/**
247 * of_irq_map_raw - Low level interrupt tree parsing
248 * @parent: the device interrupt parent
249 * @intspec: interrupt specifier ("interrupts" property of the device)
250 * @ointsize: size of the passed in interrupt specifier
251 * @addr: address specifier (start of "reg" property of the device)
252 * @out_irq: structure of_irq filled by this function
253 *
254 * Returns 0 on success and a negative number on error
255 *
256 * This function is a low-level interrupt tree walking function. It
257 * can be used to do a partial walk with synthetized reg and interrupts
258 * properties, for example when resolving PCI interrupts when no device
259 * node exist for the parent.
260 *
261 */
262
263extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
264 u32 ointsize, const u32 *addr,
265 struct of_irq *out_irq);
266
267/**
268 * of_irq_map_one - Resolve an interrupt for a device
269 * @device: the device whose interrupt is to be resolved
270 * @index: index of the interrupt to resolve
271 * @out_irq: structure of_irq filled by this function
272 *
273 * This function resolves an interrupt, walking the tree, for a given
274 * device-tree node. It's the high level pendant to of_irq_map_raw().
275 * It also implements the workarounds for OldWolrd Macs.
276 */
277extern int of_irq_map_one(struct device_node *device, int index,
278 struct of_irq *out_irq);
279
280/**
281 * of_irq_map_pci - Resolve the interrupt for a PCI device
282 * @pdev: the device whose interrupt is to be resolved
283 * @out_irq: structure of_irq filled by this function
284 *
285 * This function resolves the PCI interrupt for a given PCI device. If a
286 * device-node exists for a given pci_dev, it will use normal OF tree
287 * walking. If not, it will implement standard swizzling and walk up the
288 * PCI tree until an device-node is found, at which point it will finish
289 * resolving using the OF tree walking.
290 */
291struct pci_dev;
292extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
293
294extern int of_irq_to_resource(struct device_node *dev, int index,
295 struct resource *r);
296
297/**
298 * of_iomap - Maps the memory mapped IO for a given device_node
299 * @device: the device whose io range will be mapped
300 * @index: index of the io range
301 *
302 * Returns a pointer to the mapped memory
303 */
304extern void __iomem *of_iomap(struct device_node *device, int index);
305
306/*
307 * NB: This is here while we transition from using asm/prom.h
308 * to linux/of.h
309 */
310#include <linux/of.h>
311
312#endif /* __KERNEL__ */
313#endif /* _ASM_MICROBLAZE_PROM_H */
diff --git a/arch/microblaze/include/asm/ptrace.h b/arch/microblaze/include/asm/ptrace.h
new file mode 100644
index 000000000000..f1f03486428a
--- /dev/null
+++ b/arch/microblaze/include/asm/ptrace.h
@@ -0,0 +1,68 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_PTRACE_H
10#define _ASM_MICROBLAZE_PTRACE_H
11
12#ifndef __ASSEMBLY__
13#include <linux/types.h>
14
15typedef unsigned long microblaze_reg_t;
16
17struct pt_regs {
18 microblaze_reg_t r0;
19 microblaze_reg_t r1;
20 microblaze_reg_t r2;
21 microblaze_reg_t r3;
22 microblaze_reg_t r4;
23 microblaze_reg_t r5;
24 microblaze_reg_t r6;
25 microblaze_reg_t r7;
26 microblaze_reg_t r8;
27 microblaze_reg_t r9;
28 microblaze_reg_t r10;
29 microblaze_reg_t r11;
30 microblaze_reg_t r12;
31 microblaze_reg_t r13;
32 microblaze_reg_t r14;
33 microblaze_reg_t r15;
34 microblaze_reg_t r16;
35 microblaze_reg_t r17;
36 microblaze_reg_t r18;
37 microblaze_reg_t r19;
38 microblaze_reg_t r20;
39 microblaze_reg_t r21;
40 microblaze_reg_t r22;
41 microblaze_reg_t r23;
42 microblaze_reg_t r24;
43 microblaze_reg_t r25;
44 microblaze_reg_t r26;
45 microblaze_reg_t r27;
46 microblaze_reg_t r28;
47 microblaze_reg_t r29;
48 microblaze_reg_t r30;
49 microblaze_reg_t r31;
50 microblaze_reg_t pc;
51 microblaze_reg_t msr;
52 microblaze_reg_t ear;
53 microblaze_reg_t esr;
54 microblaze_reg_t fsr;
55 int kernel_mode;
56};
57
58#define kernel_mode(regs) ((regs)->kernel_mode)
59#define user_mode(regs) (!kernel_mode(regs))
60
61#define instruction_pointer(regs) ((regs)->pc)
62#define profile_pc(regs) instruction_pointer(regs)
63
64void show_regs(struct pt_regs *);
65
66#endif /* __ASSEMBLY__ */
67
68#endif /* _ASM_MICROBLAZE_PTRACE_H */
diff --git a/arch/microblaze/include/asm/pvr.h b/arch/microblaze/include/asm/pvr.h
new file mode 100644
index 000000000000..66f1b30dd097
--- /dev/null
+++ b/arch/microblaze/include/asm/pvr.h
@@ -0,0 +1,209 @@
1/*
2 * Support for the MicroBlaze PVR (Processor Version Register)
3 *
4 * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
6 * Copyright (C) 2007 - 2009 PetaLogix
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 */
12
13#ifndef _ASM_MICROBLAZE_PVR_H
14#define _ASM_MICROBLAZE_PVR_H
15
16#define PVR_MSR_BIT 0x400
17
18struct pvr_s {
19 unsigned pvr[16];
20};
21
22/* The following taken from Xilinx's standalone BSP pvr.h */
23
24/* Basic PVR mask */
25#define PVR0_PVR_FULL_MASK 0x80000000
26#define PVR0_USE_BARREL_MASK 0x40000000
27#define PVR0_USE_DIV_MASK 0x20000000
28#define PVR0_USE_HW_MUL_MASK 0x10000000
29#define PVR0_USE_FPU_MASK 0x08000000
30#define PVR0_USE_EXC_MASK 0x04000000
31#define PVR0_USE_ICACHE_MASK 0x02000000
32#define PVR0_USE_DCACHE_MASK 0x01000000
33#define PVR0_USE_MMU 0x00800000 /* new */
34#define PVR0_VERSION_MASK 0x0000FF00
35#define PVR0_USER1_MASK 0x000000FF
36
37/* User 2 PVR mask */
38#define PVR1_USER2_MASK 0xFFFFFFFF
39
40/* Configuration PVR masks */
41#define PVR2_D_OPB_MASK 0x80000000
42#define PVR2_D_LMB_MASK 0x40000000
43#define PVR2_I_OPB_MASK 0x20000000
44#define PVR2_I_LMB_MASK 0x10000000
45#define PVR2_INTERRUPT_IS_EDGE_MASK 0x08000000
46#define PVR2_EDGE_IS_POSITIVE_MASK 0x04000000
47#define PVR2_D_PLB_MASK 0x02000000 /* new */
48#define PVR2_I_PLB_MASK 0x01000000 /* new */
49#define PVR2_INTERCONNECT 0x00800000 /* new */
50#define PVR2_USE_EXTEND_FSL 0x00080000 /* new */
51#define PVR2_USE_FSL_EXC 0x00040000 /* new */
52#define PVR2_USE_MSR_INSTR 0x00020000
53#define PVR2_USE_PCMP_INSTR 0x00010000
54#define PVR2_AREA_OPTIMISED 0x00008000
55#define PVR2_USE_BARREL_MASK 0x00004000
56#define PVR2_USE_DIV_MASK 0x00002000
57#define PVR2_USE_HW_MUL_MASK 0x00001000
58#define PVR2_USE_FPU_MASK 0x00000800
59#define PVR2_USE_MUL64_MASK 0x00000400
60#define PVR2_USE_FPU2_MASK 0x00000200 /* new */
61#define PVR2_USE_IPLBEXC 0x00000100
62#define PVR2_USE_DPLBEXC 0x00000080
63#define PVR2_OPCODE_0x0_ILL_MASK 0x00000040
64#define PVR2_UNALIGNED_EXC_MASK 0x00000020
65#define PVR2_ILL_OPCODE_EXC_MASK 0x00000010
66#define PVR2_IOPB_BUS_EXC_MASK 0x00000008
67#define PVR2_DOPB_BUS_EXC_MASK 0x00000004
68#define PVR2_DIV_ZERO_EXC_MASK 0x00000002
69#define PVR2_FPU_EXC_MASK 0x00000001
70
71/* Debug and exception PVR masks */
72#define PVR3_DEBUG_ENABLED_MASK 0x80000000
73#define PVR3_NUMBER_OF_PC_BRK_MASK 0x1E000000
74#define PVR3_NUMBER_OF_RD_ADDR_BRK_MASK 0x00380000
75#define PVR3_NUMBER_OF_WR_ADDR_BRK_MASK 0x0000E000
76#define PVR3_FSL_LINKS_MASK 0x00000380
77
78/* ICache config PVR masks */
79#define PVR4_USE_ICACHE_MASK 0x80000000
80#define PVR4_ICACHE_ADDR_TAG_BITS_MASK 0x7C000000
81#define PVR4_ICACHE_USE_FSL_MASK 0x02000000
82#define PVR4_ICACHE_ALLOW_WR_MASK 0x01000000
83#define PVR4_ICACHE_LINE_LEN_MASK 0x00E00000
84#define PVR4_ICACHE_BYTE_SIZE_MASK 0x001F0000
85
86/* DCache config PVR masks */
87#define PVR5_USE_DCACHE_MASK 0x80000000
88#define PVR5_DCACHE_ADDR_TAG_BITS_MASK 0x7C000000
89#define PVR5_DCACHE_USE_FSL_MASK 0x02000000
90#define PVR5_DCACHE_ALLOW_WR_MASK 0x01000000
91#define PVR5_DCACHE_LINE_LEN_MASK 0x00E00000
92#define PVR5_DCACHE_BYTE_SIZE_MASK 0x001F0000
93
94/* ICache base address PVR mask */
95#define PVR6_ICACHE_BASEADDR_MASK 0xFFFFFFFF
96
97/* ICache high address PVR mask */
98#define PVR7_ICACHE_HIGHADDR_MASK 0xFFFFFFFF
99
100/* DCache base address PVR mask */
101#define PVR8_DCACHE_BASEADDR_MASK 0xFFFFFFFF
102
103/* DCache high address PVR mask */
104#define PVR9_DCACHE_HIGHADDR_MASK 0xFFFFFFFF
105
106/* Target family PVR mask */
107#define PVR10_TARGET_FAMILY_MASK 0xFF000000
108
109/* MMU descrtiption */
110#define PVR11_USE_MMU 0xC0000000
111#define PVR11_MMU_ITLB_SIZE 0x38000000
112#define PVR11_MMU_DTLB_SIZE 0x07000000
113#define PVR11_MMU_TLB_ACCESS 0x00C00000
114#define PVR11_MMU_ZONES 0x003C0000
115/* MSR Reset value PVR mask */
116#define PVR11_MSR_RESET_VALUE_MASK 0x000007FF
117
118
119/* PVR access macros */
120#define PVR_IS_FULL(pvr) (pvr.pvr[0] & PVR0_PVR_FULL_MASK)
121#define PVR_USE_BARREL(pvr) (pvr.pvr[0] & PVR0_USE_BARREL_MASK)
122#define PVR_USE_DIV(pvr) (pvr.pvr[0] & PVR0_USE_DIV_MASK)
123#define PVR_USE_HW_MUL(pvr) (pvr.pvr[0] & PVR0_USE_HW_MUL_MASK)
124#define PVR_USE_FPU(pvr) (pvr.pvr[0] & PVR0_USE_FPU_MASK)
125#define PVR_USE_FPU2(pvr) (pvr.pvr[2] & PVR2_USE_FPU2_MASK)
126#define PVR_USE_ICACHE(pvr) (pvr.pvr[0] & PVR0_USE_ICACHE_MASK)
127#define PVR_USE_DCACHE(pvr) (pvr.pvr[0] & PVR0_USE_DCACHE_MASK)
128#define PVR_VERSION(pvr) ((pvr.pvr[0] & PVR0_VERSION_MASK) >> 8)
129#define PVR_USER1(pvr) (pvr.pvr[0] & PVR0_USER1_MASK)
130#define PVR_USER2(pvr) (pvr.pvr[1] & PVR1_USER2_MASK)
131
132#define PVR_D_OPB(pvr) (pvr.pvr[2] & PVR2_D_OPB_MASK)
133#define PVR_D_LMB(pvr) (pvr.pvr[2] & PVR2_D_LMB_MASK)
134#define PVR_I_OPB(pvr) (pvr.pvr[2] & PVR2_I_OPB_MASK)
135#define PVR_I_LMB(pvr) (pvr.pvr[2] & PVR2_I_LMB_MASK)
136#define PVR_INTERRUPT_IS_EDGE(pvr) \
137 (pvr.pvr[2] & PVR2_INTERRUPT_IS_EDGE_MASK)
138#define PVR_EDGE_IS_POSITIVE(pvr) \
139 (pvr.pvr[2] & PVR2_EDGE_IS_POSITIVE_MASK)
140#define PVR_USE_MSR_INSTR(pvr) (pvr.pvr[2] & PVR2_USE_MSR_INSTR)
141#define PVR_USE_PCMP_INSTR(pvr) (pvr.pvr[2] & PVR2_USE_PCMP_INSTR)
142#define PVR_AREA_OPTIMISED(pvr) (pvr.pvr[2] & PVR2_AREA_OPTIMISED)
143#define PVR_USE_MUL64(pvr) (pvr.pvr[2] & PVR2_USE_MUL64_MASK)
144#define PVR_OPCODE_0x0_ILLEGAL(pvr) \
145 (pvr.pvr[2] & PVR2_OPCODE_0x0_ILL_MASK)
146#define PVR_UNALIGNED_EXCEPTION(pvr) \
147 (pvr.pvr[2] & PVR2_UNALIGNED_EXC_MASK)
148#define PVR_ILL_OPCODE_EXCEPTION(pvr) \
149 (pvr.pvr[2] & PVR2_ILL_OPCODE_EXC_MASK)
150#define PVR_IOPB_BUS_EXCEPTION(pvr) \
151 (pvr.pvr[2] & PVR2_IOPB_BUS_EXC_MASK)
152#define PVR_DOPB_BUS_EXCEPTION(pvr) \
153 (pvr.pvr[2] & PVR2_DOPB_BUS_EXC_MASK)
154#define PVR_DIV_ZERO_EXCEPTION(pvr) \
155 (pvr.pvr[2] & PVR2_DIV_ZERO_EXC_MASK)
156#define PVR_FPU_EXCEPTION(pvr) (pvr.pvr[2] & PVR2_FPU_EXC_MASK)
157#define PVR_FSL_EXCEPTION(pvr) (pvr.pvr[2] & PVR2_USE_EXTEND_FSL)
158
159#define PVR_DEBUG_ENABLED(pvr) (pvr.pvr[3] & PVR3_DEBUG_ENABLED_MASK)
160#define PVR_NUMBER_OF_PC_BRK(pvr) \
161 ((pvr.pvr[3] & PVR3_NUMBER_OF_PC_BRK_MASK) >> 25)
162#define PVR_NUMBER_OF_RD_ADDR_BRK(pvr) \
163 ((pvr.pvr[3] & PVR3_NUMBER_OF_RD_ADDR_BRK_MASK) >> 19)
164#define PVR_NUMBER_OF_WR_ADDR_BRK(pvr) \
165 ((pvr.pvr[3] & PVR3_NUMBER_OF_WR_ADDR_BRK_MASK) >> 13)
166#define PVR_FSL_LINKS(pvr) ((pvr.pvr[3] & PVR3_FSL_LINKS_MASK) >> 7)
167
168#define PVR_ICACHE_ADDR_TAG_BITS(pvr) \
169 ((pvr.pvr[4] & PVR4_ICACHE_ADDR_TAG_BITS_MASK) >> 26)
170#define PVR_ICACHE_USE_FSL(pvr) (pvr.pvr[4] & PVR4_ICACHE_USE_FSL_MASK)
171#define PVR_ICACHE_ALLOW_WR(pvr) (pvr.pvr[4] & PVR4_ICACHE_ALLOW_WR_MASK)
172#define PVR_ICACHE_LINE_LEN(pvr) \
173 (1 << ((pvr.pvr[4] & PVR4_ICACHE_LINE_LEN_MASK) >> 21))
174#define PVR_ICACHE_BYTE_SIZE(pvr) \
175 (1 << ((pvr.pvr[4] & PVR4_ICACHE_BYTE_SIZE_MASK) >> 16))
176
177#define PVR_DCACHE_ADDR_TAG_BITS(pvr) \
178 ((pvr.pvr[5] & PVR5_DCACHE_ADDR_TAG_BITS_MASK) >> 26)
179#define PVR_DCACHE_USE_FSL(pvr) (pvr.pvr[5] & PVR5_DCACHE_USE_FSL_MASK)
180#define PVR_DCACHE_ALLOW_WR(pvr) (pvr.pvr[5] & PVR5_DCACHE_ALLOW_WR_MASK)
181#define PVR_DCACHE_LINE_LEN(pvr) \
182 (1 << ((pvr.pvr[5] & PVR5_DCACHE_LINE_LEN_MASK) >> 21))
183#define PVR_DCACHE_BYTE_SIZE(pvr) \
184 (1 << ((pvr.pvr[5] & PVR5_DCACHE_BYTE_SIZE_MASK) >> 16))
185
186
187#define PVR_ICACHE_BASEADDR(pvr) (pvr.pvr[6] & PVR6_ICACHE_BASEADDR_MASK)
188#define PVR_ICACHE_HIGHADDR(pvr) (pvr.pvr[7] & PVR7_ICACHE_HIGHADDR_MASK)
189
190#define PVR_DCACHE_BASEADDR(pvr) (pvr.pvr[8] & PVR8_DCACHE_BASEADDR_MASK)
191#define PVR_DCACHE_HIGHADDR(pvr) (pvr.pvr[9] & PVR9_DCACHE_HIGHADDR_MASK)
192
193#define PVR_TARGET_FAMILY(pvr) ((pvr.pvr[10] & PVR10_TARGET_FAMILY_MASK) >> 24)
194
195#define PVR_MSR_RESET_VALUE(pvr) \
196 (pvr.pvr[11] & PVR11_MSR_RESET_VALUE_MASK)
197
198/* mmu */
199#define PVR_USE_MMU(pvr) ((pvr.pvr[11] & PVR11_USE_MMU) >> 30)
200#define PVR_MMU_ITLB_SIZE(pvr) (pvr.pvr[11] & PVR11_MMU_ITLB_SIZE)
201#define PVR_MMU_DTLB_SIZE(pvr) (pvr.pvr[11] & PVR11_MMU_DTLB_SIZE)
202#define PVR_MMU_TLB_ACCESS(pvr) (pvr.pvr[11] & PVR11_MMU_TLB_ACCESS)
203#define PVR_MMU_ZONES(pvr) (pvr.pvr[11] & PVR11_MMU_ZONES)
204
205
206int cpu_has_pvr(void);
207void get_pvr(struct pvr_s *pvr);
208
209#endif /* _ASM_MICROBLAZE_PVR_H */
diff --git a/arch/microblaze/include/asm/registers.h b/arch/microblaze/include/asm/registers.h
new file mode 100644
index 000000000000..834142d9356f
--- /dev/null
+++ b/arch/microblaze/include/asm/registers.h
@@ -0,0 +1,33 @@
1/*
2 * Copyright (C) 2008 Michal Simek
3 * Copyright (C) 2008 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#ifndef _ASM_MICROBLAZE_REGISTERS_H
12#define _ASM_MICROBLAZE_REGISTERS_H
13
14#define MSR_BE (1<<0) /* 0x001 */
15#define MSR_IE (1<<1) /* 0x002 */
16#define MSR_C (1<<2) /* 0x004 */
17#define MSR_BIP (1<<3) /* 0x008 */
18#define MSR_FSL (1<<4) /* 0x010 */
19#define MSR_ICE (1<<5) /* 0x020 */
20#define MSR_DZ (1<<6) /* 0x040 */
21#define MSR_DCE (1<<7) /* 0x080 */
22#define MSR_EE (1<<8) /* 0x100 */
23#define MSR_EIP (1<<9) /* 0x200 */
24#define MSR_CC (1<<31)
25
26/* Floating Point Status Register (FSR) Bits */
27#define FSR_IO (1<<4) /* Invalid operation */
28#define FSR_DZ (1<<3) /* Divide-by-zero */
29#define FSR_OF (1<<2) /* Overflow */
30#define FSR_UF (1<<1) /* Underflow */
31#define FSR_DO (1<<0) /* Denormalized operand error */
32
33#endif /* _ASM_MICROBLAZE_REGISTERS_H */
diff --git a/arch/microblaze/include/asm/resource.h b/arch/microblaze/include/asm/resource.h
new file mode 100644
index 000000000000..04bc4db8921b
--- /dev/null
+++ b/arch/microblaze/include/asm/resource.h
@@ -0,0 +1 @@
#include <asm-generic/resource.h>
diff --git a/arch/microblaze/include/asm/scatterlist.h b/arch/microblaze/include/asm/scatterlist.h
new file mode 100644
index 000000000000..08ff1d049b42
--- /dev/null
+++ b/arch/microblaze/include/asm/scatterlist.h
@@ -0,0 +1,28 @@
1/*
2 * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2006 Atmark Techno, Inc.
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
9
10#ifndef _ASM_MICROBLAZE_SCATTERLIST_H
11#define _ASM_MICROBLAZE_SCATTERLIST_H
12
13struct scatterlist {
14#ifdef CONFIG_DEBUG_SG
15 unsigned long sg_magic;
16#endif
17 unsigned long page_link;
18 dma_addr_t dma_address;
19 unsigned int offset;
20 unsigned int length;
21};
22
23#define sg_dma_address(sg) ((sg)->dma_address)
24#define sg_dma_len(sg) ((sg)->length)
25
26#define ISA_DMA_THRESHOLD (~0UL)
27
28#endif /* _ASM_MICROBLAZE_SCATTERLIST_H */
diff --git a/arch/microblaze/include/asm/sections.h b/arch/microblaze/include/asm/sections.h
new file mode 100644
index 000000000000..8434a43e5421
--- /dev/null
+++ b/arch/microblaze/include/asm/sections.h
@@ -0,0 +1,25 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SECTIONS_H
10#define _ASM_MICROBLAZE_SECTIONS_H
11
12#include <asm-generic/sections.h>
13
14# ifndef __ASSEMBLY__
15extern char _ssbss[], _esbss[];
16extern unsigned long __ivt_start[], __ivt_end[];
17
18# ifdef CONFIG_MTD_UCLINUX
19extern char *_ebss;
20# endif
21
22extern u32 _fdt_start[], _fdt_end[];
23
24# endif /* !__ASSEMBLY__ */
25#endif /* _ASM_MICROBLAZE_SECTIONS_H */
diff --git a/arch/microblaze/include/asm/segment.h b/arch/microblaze/include/asm/segment.h
new file mode 100644
index 000000000000..7f5dcc56eea1
--- /dev/null
+++ b/arch/microblaze/include/asm/segment.h
@@ -0,0 +1,43 @@
1/*
2 * Copyright (C) 2008 Michal Simek
3 * Copyright (C) 2008 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#ifndef _ASM_MICROBLAZE_SEGMENT_H
12#define _ASM_MICROBLAZE_SEGMENT_H
13
14#ifndef __ASSEMBLY__
15
16typedef struct {
17 unsigned long seg;
18} mm_segment_t;
19
20/*
21 * On Microblaze the fs value is actually the top of the corresponding
22 * address space.
23 *
24 * The fs value determines whether argument validity checking should be
25 * performed or not. If get_fs() == USER_DS, checking is performed, with
26 * get_fs() == KERNEL_DS, checking is bypassed.
27 *
28 * For historical reasons, these macros are grossly misnamed.
29 *
30 * For non-MMU arch like Microblaze, KERNEL_DS and USER_DS is equal.
31 */
32# define KERNEL_DS ((mm_segment_t){0})
33# define USER_DS KERNEL_DS
34
35# define get_ds() (KERNEL_DS)
36# define get_fs() (current_thread_info()->addr_limit)
37# define set_fs(x) \
38 do { current_thread_info()->addr_limit = (x); } while (0)
39
40# define segment_eq(a, b) ((a).seg == (b).seg)
41
42# endif /* __ASSEMBLY__ */
43#endif /* _ASM_MICROBLAZE_SEGMENT_H */
diff --git a/arch/microblaze/include/asm/selfmod.h b/arch/microblaze/include/asm/selfmod.h
new file mode 100644
index 000000000000..c42aff2e6cd0
--- /dev/null
+++ b/arch/microblaze/include/asm/selfmod.h
@@ -0,0 +1,24 @@
1/*
2 * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SELFMOD_H
10#define _ASM_MICROBLAZE_SELFMOD_H
11
12/*
13 * BARRIER_BASE_ADDR is constant address for selfmod function.
14 * do not change this value - selfmod function is in
15 * arch/microblaze/kernel/selfmod.c: selfmod_function()
16 *
17 * last 16 bits is used for storing register offset
18 */
19
20#define BARRIER_BASE_ADDR 0x1234ff00
21
22void selfmod_function(const int *arr_fce, const unsigned int base);
23
24#endif /* _ASM_MICROBLAZE_SELFMOD_H */
diff --git a/arch/microblaze/include/asm/sembuf.h b/arch/microblaze/include/asm/sembuf.h
new file mode 100644
index 000000000000..b804ed71a57e
--- /dev/null
+++ b/arch/microblaze/include/asm/sembuf.h
@@ -0,0 +1,34 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SEMBUF_H
10#define _ASM_MICROBLAZE_SEMBUF_H
11
12/*
13 * The semid64_ds structure for microblaze architecture.
14 * Note extra padding because this structure is passed back and forth
15 * between kernel and user space.
16 *
17 * Pad space is left for:
18 * - 64-bit time_t to solve y2038 problem
19 * - 2 miscellaneous 32-bit values
20 */
21
22struct semid64_ds {
23 struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
24 __kernel_time_t sem_otime; /* last semop time */
25 unsigned long __unused1;
26 __kernel_time_t sem_ctime; /* last change time */
27 unsigned long __unused2;
28 unsigned long sem_nsems; /* no. of semaphores in array */
29 unsigned long __unused3;
30 unsigned long __unused4;
31};
32
33
34#endif /* _ASM_MICROBLAZE_SEMBUF_H */
diff --git a/arch/microblaze/include/asm/serial.h b/arch/microblaze/include/asm/serial.h
new file mode 100644
index 000000000000..39bfc8ce6af5
--- /dev/null
+++ b/arch/microblaze/include/asm/serial.h
@@ -0,0 +1,14 @@
1/*
2 * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SERIAL_H
10#define _ASM_MICROBLAZE_SERIAL_H
11
12# define BASE_BAUD (1843200 / 16)
13
14#endif /* _ASM_MICROBLAZE_SERIAL_H */
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
new file mode 100644
index 000000000000..9b98e8e6abae
--- /dev/null
+++ b/arch/microblaze/include/asm/setup.h
@@ -0,0 +1,44 @@
1/*
2 * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2006 Atmark Techno, Inc.
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
9
10#ifndef _ASM_MICROBLAZE_SETUP_H
11#define _ASM_MICROBLAZE_SETUP_H
12
13#define COMMAND_LINE_SIZE 256
14
15# ifndef __ASSEMBLY__
16
17# ifdef __KERNEL__
18extern unsigned int boot_cpuid; /* move to smp.h */
19
20extern char cmd_line[COMMAND_LINE_SIZE];
21# endif/* __KERNEL__ */
22
23void early_printk(const char *fmt, ...);
24
25int setup_early_printk(char *opt);
26void disable_early_printk(void);
27
28void heartbeat(void);
29void setup_heartbeat(void);
30
31unsigned long long sched_clock(void);
32
33void time_init(void);
34void init_IRQ(void);
35void machine_early_init(const char *cmdline, unsigned int ram,
36 unsigned int fdt);
37
38void machine_restart(char *cmd);
39void machine_shutdown(void);
40void machine_halt(void);
41void machine_power_off(void);
42
43# endif /* __ASSEMBLY__ */
44#endif /* _ASM_MICROBLAZE_SETUP_H */
diff --git a/arch/microblaze/include/asm/shmbuf.h b/arch/microblaze/include/asm/shmbuf.h
new file mode 100644
index 000000000000..f829c5843618
--- /dev/null
+++ b/arch/microblaze/include/asm/shmbuf.h
@@ -0,0 +1,42 @@
1#ifndef _ASM_MICROBLAZE_SHMBUF_H
2#define _ASM_MICROBLAZE_SHMBUF_H
3
4/*
5 * The shmid64_ds structure for microblaze architecture.
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
8 *
9 * Pad space is left for:
10 * - 64-bit time_t to solve y2038 problem
11 * - 2 miscellaneous 32-bit values
12 */
13
14struct shmid64_ds {
15 struct ipc64_perm shm_perm; /* operation perms */
16 size_t shm_segsz; /* size of segment (bytes) */
17 __kernel_time_t shm_atime; /* last attach time */
18 unsigned long __unused1;
19 __kernel_time_t shm_dtime; /* last detach time */
20 unsigned long __unused2;
21 __kernel_time_t shm_ctime; /* last change time */
22 unsigned long __unused3;
23 __kernel_pid_t shm_cpid; /* pid of creator */
24 __kernel_pid_t shm_lpid; /* pid of last operator */
25 unsigned long shm_nattch; /* no. of current attaches */
26 unsigned long __unused4;
27 unsigned long __unused5;
28};
29
30struct shminfo64 {
31 unsigned long shmmax;
32 unsigned long shmmin;
33 unsigned long shmmni;
34 unsigned long shmseg;
35 unsigned long shmall;
36 unsigned long __unused1;
37 unsigned long __unused2;
38 unsigned long __unused3;
39 unsigned long __unused4;
40};
41
42#endif /* _ASM_MICROBLAZE_SHMBUF_H */
diff --git a/arch/microblaze/include/asm/shmparam.h b/arch/microblaze/include/asm/shmparam.h
new file mode 100644
index 000000000000..9f5fc2b3b6a3
--- /dev/null
+++ b/arch/microblaze/include/asm/shmparam.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_MICROBLAZE_SHMPARAM_H
2#define _ASM_MICROBLAZE_SHMPARAM_H
3
4#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
5
6#endif /* _ASM_MICROBLAZE_SHMPARAM_H */
diff --git a/arch/microblaze/include/asm/sigcontext.h b/arch/microblaze/include/asm/sigcontext.h
new file mode 100644
index 000000000000..55873c80c917
--- /dev/null
+++ b/arch/microblaze/include/asm/sigcontext.h
@@ -0,0 +1,20 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SIGCONTEXT_H
10#define _ASM_MICROBLAZE_SIGCONTEXT_H
11
12/* FIXME should be linux/ptrace.h */
13#include <asm/ptrace.h>
14
15struct sigcontext {
16 struct pt_regs regs;
17 unsigned long oldmask;
18};
19
20#endif /* _ASM_MICROBLAZE_SIGCONTEXT_H */
diff --git a/arch/microblaze/include/asm/siginfo.h b/arch/microblaze/include/asm/siginfo.h
new file mode 100644
index 000000000000..f162911a8f50
--- /dev/null
+++ b/arch/microblaze/include/asm/siginfo.h
@@ -0,0 +1,15 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SIGINFO_H
10#define _ASM_MICROBLAZE_SIGINFO_H
11
12#include <linux/types.h>
13#include <asm-generic/siginfo.h>
14
15#endif /* _ASM_MICROBLAZE_SIGINFO_H */
diff --git a/arch/microblaze/include/asm/signal.h b/arch/microblaze/include/asm/signal.h
new file mode 100644
index 000000000000..9676fad3486c
--- /dev/null
+++ b/arch/microblaze/include/asm/signal.h
@@ -0,0 +1,165 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 * Yasushi SHOJI <yashi@atmark-techno.com>
4 * Tetsuya OHKAWA <tetsuya@atmark-techno.com>
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#ifndef _ASM_MICROBLAZE_SIGNAL_H
12#define _ASM_MICROBLAZE_SIGNAL_H
13
14#define SIGHUP 1
15#define SIGINT 2
16#define SIGQUIT 3
17#define SIGILL 4
18#define SIGTRAP 5
19#define SIGABRT 6
20#define SIGIOT 6
21#define SIGBUS 7
22#define SIGFPE 8
23#define SIGKILL 9
24#define SIGUSR1 10
25#define SIGSEGV 11
26#define SIGUSR2 12
27#define SIGPIPE 13
28#define SIGALRM 14
29#define SIGTERM 15
30#define SIGSTKFLT 16
31#define SIGCHLD 17
32#define SIGCONT 18
33#define SIGSTOP 19
34#define SIGTSTP 20
35#define SIGTTIN 21
36#define SIGTTOU 22
37#define SIGURG 23
38#define SIGXCPU 24
39#define SIGXFSZ 25
40#define SIGVTALRM 26
41#define SIGPROF 27
42#define SIGWINCH 28
43#define SIGIO 29
44#define SIGPOLL SIGIO
45/*
46#define SIGLOST 29
47*/
48#define SIGPWR 30
49#define SIGSYS 31
50#define SIGUNUSED 31
51
52/* These should not be considered constants from userland. */
53#define SIGRTMIN 32
54#define SIGRTMAX _NSIG
55
56/*
57 * SA_FLAGS values:
58 *
59 * SA_ONSTACK indicates that a registered stack_t will be used.
60 * SA_RESTART flag to get restarting signals (which were the default long ago)
61 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
62 * SA_RESETHAND clears the handler when the signal is delivered.
63 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
64 * SA_NODEFER prevents the current signal from being masked in the handler.
65 *
66 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
67 * Unix names RESETHAND and NODEFER respectively.
68 */
69#define SA_NOCLDSTOP 0x00000001
70#define SA_NOCLDWAIT 0x00000002
71#define SA_SIGINFO 0x00000004
72#define SA_ONSTACK 0x08000000
73#define SA_RESTART 0x10000000
74#define SA_NODEFER 0x40000000
75#define SA_RESETHAND 0x80000000
76
77#define SA_NOMASK SA_NODEFER
78#define SA_ONESHOT SA_RESETHAND
79
80#define SA_RESTORER 0x04000000
81
82/*
83 * sigaltstack controls
84 */
85#define SS_ONSTACK 1
86#define SS_DISABLE 2
87
88#define MINSIGSTKSZ 2048
89#define SIGSTKSZ 8192
90
91# ifndef __ASSEMBLY__
92# include <linux/types.h>
93# include <asm-generic/signal.h>
94
95/* Avoid too many header ordering problems. */
96struct siginfo;
97
98# ifdef __KERNEL__
99/*
100 * Most things should be clean enough to redefine this at will, if care
101 * is taken to make libc match.
102 */
103# define _NSIG 64
104# define _NSIG_BPW 32
105# define _NSIG_WORDS (_NSIG / _NSIG_BPW)
106
107typedef unsigned long old_sigset_t; /* at least 32 bits */
108
109typedef struct {
110 unsigned long sig[_NSIG_WORDS];
111} sigset_t;
112
113struct old_sigaction {
114 __sighandler_t sa_handler;
115 old_sigset_t sa_mask;
116 unsigned long sa_flags;
117 void (*sa_restorer)(void);
118};
119
120struct sigaction {
121 __sighandler_t sa_handler;
122 unsigned long sa_flags;
123 void (*sa_restorer)(void);
124 sigset_t sa_mask; /* mask last for extensibility */
125};
126
127struct k_sigaction {
128 struct sigaction sa;
129};
130
131# include <asm/sigcontext.h>
132# undef __HAVE_ARCH_SIG_BITOPS
133
134# define ptrace_signal_deliver(regs, cookie) do { } while (0)
135
136# else /* !__KERNEL__ */
137
138/* Here we must cater to libcs that poke about in kernel headers. */
139
140# define NSIG 32
141typedef unsigned long sigset_t;
142
143struct sigaction {
144 union {
145 __sighandler_t _sa_handler;
146 void (*_sa_sigaction)(int, struct siginfo *, void *);
147 } _u;
148 sigset_t sa_mask;
149 unsigned long sa_flags;
150 void (*sa_restorer)(void);
151};
152
153# define sa_handler _u._sa_handler
154# define sa_sigaction _u._sa_sigaction
155
156# endif /* __KERNEL__ */
157
158typedef struct sigaltstack {
159 void *ss_sp;
160 int ss_flags;
161 size_t ss_size;
162} stack_t;
163
164# endif /* __ASSEMBLY__ */
165#endif /* _ASM_MICROBLAZE_SIGNAL_H */
diff --git a/arch/microblaze/include/asm/socket.h b/arch/microblaze/include/asm/socket.h
new file mode 100644
index 000000000000..f919b6b540ac
--- /dev/null
+++ b/arch/microblaze/include/asm/socket.h
@@ -0,0 +1,66 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SOCKET_H
10#define _ASM_MICROBLAZE_SOCKET_H
11
12#include <asm/sockios.h>
13
14/* For setsockoptions(2) */
15#define SOL_SOCKET 1
16
17#define SO_DEBUG 1
18#define SO_REUSEADDR 2
19#define SO_TYPE 3
20#define SO_ERROR 4
21#define SO_DONTROUTE 5
22#define SO_BROADCAST 6
23#define SO_SNDBUF 7
24#define SO_RCVBUF 8
25#define SO_SNDBUFFORCE 32
26#define SO_RCVBUFFORCE 33
27#define SO_KEEPALIVE 9
28#define SO_OOBINLINE 10
29#define SO_NO_CHECK 11
30#define SO_PRIORITY 12
31#define SO_LINGER 13
32#define SO_BSDCOMPAT 14
33/* To add :#define SO_REUSEPORT 15 */
34#define SO_PASSCRED 16
35#define SO_PEERCRED 17
36#define SO_RCVLOWAT 18
37#define SO_SNDLOWAT 19
38#define SO_RCVTIMEO 20
39#define SO_SNDTIMEO 21
40
41/* Security levels - as per NRL IPv6 - don't actually do anything */
42#define SO_SECURITY_AUTHENTICATION 22
43#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
44#define SO_SECURITY_ENCRYPTION_NETWORK 24
45
46#define SO_BINDTODEVICE 25
47
48/* Socket filtering */
49#define SO_ATTACH_FILTER 26
50#define SO_DETACH_FILTER 27
51
52#define SO_PEERNAME 28
53#define SO_TIMESTAMP 29
54#define SCM_TIMESTAMP SO_TIMESTAMP
55
56#define SO_ACCEPTCONN 30
57
58#define SO_PEERSEC 31
59#define SO_PASSSEC 34
60
61#define SO_TIMESTAMPNS 35
62#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
63
64#define SO_MARK 36
65
66#endif /* _ASM_MICROBLAZE_SOCKET_H */
diff --git a/arch/microblaze/include/asm/sockios.h b/arch/microblaze/include/asm/sockios.h
new file mode 100644
index 000000000000..9fff57a701e1
--- /dev/null
+++ b/arch/microblaze/include/asm/sockios.h
@@ -0,0 +1,23 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SOCKIOS_H
10#define _ASM_MICROBLAZE_SOCKIOS_H
11
12#include <linux/ioctl.h>
13
14/* Socket-level I/O control calls. */
15#define FIOSETOWN 0x8901
16#define SIOCSPGRP 0x8902
17#define FIOGETOWN 0x8903
18#define SIOCGPGRP 0x8904
19#define SIOCATMARK 0x8905
20#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
21#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
22
23#endif /* _ASM_MICROBLAZE_SOCKIOS_H */
diff --git a/arch/microblaze/include/asm/stat.h b/arch/microblaze/include/asm/stat.h
new file mode 100644
index 000000000000..5f18b8aed220
--- /dev/null
+++ b/arch/microblaze/include/asm/stat.h
@@ -0,0 +1,73 @@
1/*
2 * Microblaze stat structure
3 *
4 * Copyright (C) 2001,02,03 NEC Electronics Corporation
5 * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
6 *
7 * This file is subject to the terms and conditions of the GNU General
8 * Public License. See the file COPYING in the main directory of this
9 * archive for more details.
10 *
11 * Written by Miles Bader <miles@gnu.org>
12 */
13
14#ifndef _ASM_MICROBLAZE_STAT_H
15#define _ASM_MICROBLAZE_STAT_H
16
17#include <linux/posix_types.h>
18
19struct stat {
20 unsigned int st_dev;
21 unsigned long st_ino;
22 unsigned int st_mode;
23 unsigned int st_nlink;
24 unsigned int st_uid;
25 unsigned int st_gid;
26 unsigned int st_rdev;
27 unsigned long st_size;
28 unsigned long st_blksize;
29 unsigned long st_blocks;
30 unsigned long st_atime;
31 unsigned long __unused1; /* unsigned long st_atime_nsec */
32 unsigned long st_mtime;
33 unsigned long __unused2; /* unsigned long st_mtime_nsec */
34 unsigned long st_ctime;
35 unsigned long __unused3; /* unsigned long st_ctime_nsec */
36 unsigned long __unused4;
37 unsigned long __unused5;
38};
39
40struct stat64 {
41 unsigned long long st_dev;
42 unsigned long __unused1;
43
44 unsigned long long st_ino;
45
46 unsigned int st_mode;
47 unsigned int st_nlink;
48
49 unsigned int st_uid;
50 unsigned int st_gid;
51
52 unsigned long long st_rdev;
53 unsigned long __unused3;
54
55 long long st_size;
56 unsigned long st_blksize;
57
58 unsigned long st_blocks; /* No. of 512-byte blocks allocated */
59 unsigned long __unused4; /* future possible st_blocks high bits */
60
61 unsigned long st_atime;
62 unsigned long st_atime_nsec;
63
64 unsigned long st_mtime;
65 unsigned long st_mtime_nsec;
66
67 unsigned long st_ctime;
68 unsigned long st_ctime_nsec;
69
70 unsigned long __unused8;
71};
72
73#endif /* _ASM_MICROBLAZE_STAT_H */
diff --git a/arch/microblaze/include/asm/statfs.h b/arch/microblaze/include/asm/statfs.h
new file mode 100644
index 000000000000..0b91fe198c20
--- /dev/null
+++ b/arch/microblaze/include/asm/statfs.h
@@ -0,0 +1 @@
#include <asm-generic/statfs.h>
diff --git a/arch/microblaze/include/asm/string.h b/arch/microblaze/include/asm/string.h
new file mode 100644
index 000000000000..f7728c90fc18
--- /dev/null
+++ b/arch/microblaze/include/asm/string.h
@@ -0,0 +1,24 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_STRING_H
10#define _ASM_MICROBLAZE_STRING_H
11
12#ifndef __KERNEL__
13
14#define __HAVE_ARCH_MEMSET
15#define __HAVE_ARCH_MEMCPY
16#define __HAVE_ARCH_MEMMOVE
17
18extern void *memset(void *, int, __kernel_size_t);
19extern void *memcpy(void *, const void *, __kernel_size_t);
20extern void *memmove(void *, const void *, __kernel_size_t);
21
22#endif /* __KERNEL__ */
23
24#endif /* _ASM_MICROBLAZE_STRING_H */
diff --git a/arch/microblaze/include/asm/swab.h b/arch/microblaze/include/asm/swab.h
new file mode 100644
index 000000000000..b375d7b65ad7
--- /dev/null
+++ b/arch/microblaze/include/asm/swab.h
@@ -0,0 +1,8 @@
1#ifndef _ASM_MICROBLAZE_SWAB_H
2#define _ASM_MICROBLAZE_SWAB_H
3
4#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
5#define __SWAB_64_THRU_32__
6#endif
7
8#endif /* _ASM_MICROBLAZE_SWAB_H */
diff --git a/arch/microblaze/include/asm/syscalls.h b/arch/microblaze/include/asm/syscalls.h
new file mode 100644
index 000000000000..9cb4ff0edeb2
--- /dev/null
+++ b/arch/microblaze/include/asm/syscalls.h
@@ -0,0 +1,45 @@
1#ifndef __ASM_MICROBLAZE_SYSCALLS_H
2#define __ASM_MICROBLAZE_SYSCALLS_H
3#ifdef __KERNEL__
4
5#include <linux/compiler.h>
6#include <linux/linkage.h>
7#include <linux/types.h>
8#include <linux/signal.h>
9
10/* FIXME will be removed */
11asmlinkage int sys_ipc(uint call, int first, int second,
12 int third, void *ptr, long fifth);
13
14struct pt_regs;
15asmlinkage int sys_vfork(struct pt_regs *regs);
16asmlinkage int sys_clone(int flags, unsigned long stack, struct pt_regs *regs);
17asmlinkage int sys_execve(char __user *filenamei, char __user *__user *argv,
18 char __user *__user *envp, struct pt_regs *regs);
19
20asmlinkage unsigned long sys_mmap2(unsigned long addr, size_t len,
21 unsigned long prot, unsigned long flags,
22 unsigned long fd, unsigned long pgoff);
23
24asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
25 unsigned long prot, unsigned long flags,
26 unsigned long fd, off_t offset);
27
28/* from signal.c */
29asmlinkage int sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs);
30
31asmlinkage int sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
32 struct pt_regs *regs);
33
34asmlinkage int sys_sigaction(int sig, const struct old_sigaction *act,
35 struct old_sigaction *oact);
36
37asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
38 struct pt_regs *regs);
39
40asmlinkage int sys_sigreturn(struct pt_regs *regs);
41
42asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
43
44#endif /* __KERNEL__ */
45#endif /* __ASM_MICROBLAZE_SYSCALLS_H */
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h
new file mode 100644
index 000000000000..c4e308850b5d
--- /dev/null
+++ b/arch/microblaze/include/asm/system.h
@@ -0,0 +1,91 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_SYSTEM_H
10#define _ASM_MICROBLAZE_SYSTEM_H
11
12#include <asm/registers.h>
13#include <asm/setup.h>
14#include <asm/irqflags.h>
15
16struct task_struct;
17struct thread_info;
18
19extern struct task_struct *_switch_to(struct thread_info *prev,
20 struct thread_info *next);
21
22#define switch_to(prev, next, last) \
23 do { \
24 (last) = _switch_to(task_thread_info(prev), \
25 task_thread_info(next)); \
26 } while (0)
27
28#define smp_read_barrier_depends() do {} while (0)
29#define read_barrier_depends() do {} while (0)
30
31#define nop() asm volatile ("nop")
32#define mb() barrier()
33#define rmb() mb()
34#define wmb() mb()
35#define set_mb(var, value) do { var = value; mb(); } while (0)
36#define set_wmb(var, value) do { var = value; wmb(); } while (0)
37
38#define smp_mb() mb()
39#define smp_rmb() rmb()
40#define smp_wmb() wmb()
41
42void show_trace(struct task_struct *task, unsigned long *stack);
43void __bad_xchg(volatile void *ptr, int size);
44
45static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
46 int size)
47{
48 unsigned long ret;
49 unsigned long flags;
50
51 switch (size) {
52 case 1:
53 local_irq_save(flags);
54 ret = *(volatile unsigned char *)ptr;
55 *(volatile unsigned char *)ptr = x;
56 local_irq_restore(flags);
57 break;
58
59 case 4:
60 local_irq_save(flags);
61 ret = *(volatile unsigned long *)ptr;
62 *(volatile unsigned long *)ptr = x;
63 local_irq_restore(flags);
64 break;
65 default:
66 __bad_xchg(ptr, size), ret = 0;
67 break;
68 }
69
70 return ret;
71}
72
73void disable_hlt(void);
74void enable_hlt(void);
75void default_idle(void);
76
77#define xchg(ptr, x) \
78 ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
79
80void free_init_pages(char *what, unsigned long begin, unsigned long end);
81void free_initmem(void);
82extern char *klimit;
83extern void ret_from_fork(void);
84
85#ifdef CONFIG_DEBUG_FS
86extern struct dentry *of_debugfs_root;
87#endif
88
89#define arch_align_stack(x) (x)
90
91#endif /* _ASM_MICROBLAZE_SYSTEM_H */
diff --git a/arch/microblaze/include/asm/termbits.h b/arch/microblaze/include/asm/termbits.h
new file mode 100644
index 000000000000..a1b64bc4724a
--- /dev/null
+++ b/arch/microblaze/include/asm/termbits.h
@@ -0,0 +1,203 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_TERMBITS_H
10#define _ASM_MICROBLAZE_TERMBITS_H
11
12#include <linux/posix_types.h>
13
14typedef unsigned char cc_t;
15typedef unsigned int speed_t;
16typedef unsigned int tcflag_t;
17
18#define NCCS 19
19struct termios {
20 tcflag_t c_iflag; /* input mode flags */
21 tcflag_t c_oflag; /* output mode flags */
22 tcflag_t c_cflag; /* control mode flags */
23 tcflag_t c_lflag; /* local mode flags */
24 cc_t c_line; /* line discipline */
25 cc_t c_cc[NCCS]; /* control characters */
26};
27
28struct ktermios {
29 tcflag_t c_iflag; /* input mode flags */
30 tcflag_t c_oflag; /* output mode flags */
31 tcflag_t c_cflag; /* control mode flags */
32 tcflag_t c_lflag; /* local mode flags */
33 cc_t c_line; /* line discipline */
34 cc_t c_cc[NCCS]; /* control characters */
35 speed_t c_ispeed; /* input speed */
36 speed_t c_ospeed; /* output speed */
37};
38
39/* c_cc characters */
40
41#define VINTR 0
42#define VQUIT 1
43#define VERASE 2
44#define VKILL 3
45#define VEOF 4
46#define VTIME 5
47#define VMIN 6
48#define VSWTC 7
49#define VSTART 8
50#define VSTOP 9
51#define VSUSP 10
52#define VEOL 11
53#define VREPRINT 12
54#define VDISCARD 13
55#define VWERASE 14
56#define VLNEXT 15
57#define VEOL2 16
58
59/* c_iflag bits */
60
61#define IGNBRK 0000001
62#define BRKINT 0000002
63#define IGNPAR 0000004
64#define PARMRK 0000010
65#define INPCK 0000020
66#define ISTRIP 0000040
67#define INLCR 0000100
68#define IGNCR 0000200
69#define ICRNL 0000400
70#define IUCLC 0001000
71#define IXON 0002000
72#define IXANY 0004000
73#define IXOFF 0010000
74#define IMAXBEL 0020000
75#define IUTF8 0040000
76
77/* c_oflag bits */
78
79#define OPOST 0000001
80#define OLCUC 0000002
81#define ONLCR 0000004
82#define OCRNL 0000010
83#define ONOCR 0000020
84#define ONLRET 0000040
85#define OFILL 0000100
86#define OFDEL 0000200
87#define NLDLY 0000400
88#define NL0 0000000
89#define NL1 0000400
90#define CRDLY 0003000
91#define CR0 0000000
92#define CR1 0001000
93#define CR2 0002000
94#define CR3 0003000
95#define TABDLY 0014000
96#define TAB0 0000000
97#define TAB1 0004000
98#define TAB2 0010000
99#define TAB3 0014000
100#define XTABS 0014000
101#define BSDLY 0020000
102#define BS0 0000000
103#define BS1 0020000
104#define VTDLY 0040000
105#define VT0 0000000
106#define VT1 0040000
107#define FFDLY 0100000
108#define FF0 0000000
109#define FF1 0100000
110
111/* c_cflag bit meaning */
112
113#define CBAUD 0010017
114#define B0 0000000 /* hang up */
115#define B50 0000001
116#define B75 0000002
117#define B110 0000003
118#define B134 0000004
119#define B150 0000005
120#define B200 0000006
121#define B300 0000007
122#define B600 0000010
123#define B1200 0000011
124#define B1800 0000012
125#define B2400 0000013
126#define B4800 0000014
127#define B9600 0000015
128#define B19200 0000016
129#define B38400 0000017
130#define EXTA B19200
131#define EXTB B38400
132#define CSIZE 0000060
133#define CS5 0000000
134#define CS6 0000020
135#define CS7 0000040
136#define CS8 0000060
137#define CSTOPB 0000100
138#define CREAD 0000200
139#define PARENB 0000400
140#define PARODD 0001000
141#define HUPCL 0002000
142#define CLOCAL 0004000
143#define CBAUDEX 0010000
144#define B57600 0010001
145#define B115200 0010002
146#define B230400 0010003
147#define B460800 0010004
148#define B500000 0010005
149#define B576000 0010006
150#define B921600 0010007
151#define BOTHER 0010000
152#define B1000000 0010010
153#define B1152000 0010011
154#define B1500000 0010012
155#define B2000000 0010013
156#define B2500000 0010014
157#define B3000000 0010015
158#define B3500000 0010016
159#define B4000000 0010017
160#define CIBAUD 002003600000 /* input baud rate (not used) */
161#define CMSPAR 010000000000 /* mark or space (stick) parity */
162#define CRTSCTS 020000000000 /* flow control */
163
164#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */
165
166/* c_lflag bits */
167
168#define ISIG 0000001
169#define ICANON 0000002
170#define XCASE 0000004
171#define ECHO 0000010
172#define ECHOE 0000020
173#define ECHOK 0000040
174#define ECHONL 0000100
175#define NOFLSH 0000200
176#define TOSTOP 0000400
177#define ECHOCTL 0001000
178#define ECHOPRT 0002000
179#define ECHOKE 0004000
180#define FLUSHO 0010000
181#define PENDIN 0040000
182#define IEXTEN 0100000
183
184/* tcflow() and TCXONC use these */
185
186#define TCOOFF 0
187#define TCOON 1
188#define TCIOFF 2
189#define TCION 3
190
191/* tcflush() and TCFLSH use these */
192
193#define TCIFLUSH 0
194#define TCOFLUSH 1
195#define TCIOFLUSH 2
196
197/* tcsetattr uses these */
198
199#define TCSANOW 0
200#define TCSADRAIN 1
201#define TCSAFLUSH 2
202
203#endif /* _ASM_MICROBLAZE_TERMBITS_H */
diff --git a/arch/microblaze/include/asm/termios.h b/arch/microblaze/include/asm/termios.h
new file mode 100644
index 000000000000..102d77258668
--- /dev/null
+++ b/arch/microblaze/include/asm/termios.h
@@ -0,0 +1,88 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_TERMIOS_H
10#define _ASM_MICROBLAZE_TERMIOS_H
11
12#include <linux/string.h>
13#include <asm/termbits.h>
14#include <asm/ioctls.h>
15
16struct winsize {
17 unsigned short ws_row;
18 unsigned short ws_col;
19 unsigned short ws_xpixel;
20 unsigned short ws_ypixel;
21};
22
23#define NCC 8
24struct termio {
25 unsigned short c_iflag; /* input mode flags */
26 unsigned short c_oflag; /* output mode flags */
27 unsigned short c_cflag; /* control mode flags */
28 unsigned short c_lflag; /* local mode flags */
29 unsigned char c_line; /* line discipline */
30 unsigned char c_cc[NCC]; /* control characters */
31};
32
33#ifdef __KERNEL__
34/* intr=^C quit=^| erase=del kill=^U
35 eof=^D vtime=\0 vmin=\1 sxtc=\0
36 start=^Q stop=^S susp=^Z eol=\0
37 reprint=^R discard=^U werase=^W lnext=^V
38 eol2=\0
39*/
40#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
41#endif
42
43/* Modem lines */
44
45#define TIOCM_LE 0x001
46#define TIOCM_DTR 0x002
47#define TIOCM_RTS 0x004
48#define TIOCM_ST 0x008
49#define TIOCM_SR 0x010
50#define TIOCM_CTS 0x020
51#define TIOCM_CAR 0x040
52#define TIOCM_RNG 0x080
53#define TIOCM_DSR 0x100
54#define TIOCM_CD TIOCM_CAR
55#define TIOCM_RI TIOCM_RNG
56#define TIOCM_OUT1 0x2000
57#define TIOCM_OUT2 0x4000
58#define TIOCM_LOOP 0x8000
59
60/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
61
62/* Line disciplines */
63
64#define N_TTY 0
65#define N_SLIP 1
66#define N_MOUSE 2
67#define N_PPP 3
68#define N_STRIP 4
69#define N_AX25 5
70#define N_X25 6 /* X.25 async */
71#define N_6PACK 7
72#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */
73#define N_R3964 9 /* Reserved for Simatic R3964 module */
74#define N_PROFIBUS_FDL 10 /* Reserved for Profibus <Dave@mvhi.com> */
75#define N_IRDA 11 /* Linux IR - http://irda.sourceforge.net/ */
76#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data cards
77 about SMS messages */
78#define N_HDLC 13 /* synchronous HDLC */
79#define N_SYNC_PPP 14
80#define N_HCI 15 /* Bluetooth HCI UART */
81
82#ifdef __KERNEL__
83
84#include <asm-generic/termios.h>
85
86#endif /* __KERNEL__ */
87
88#endif /* _ASM_MICROBLAZE_TERMIOS_H */
diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h
new file mode 100644
index 000000000000..4c3943e3f403
--- /dev/null
+++ b/arch/microblaze/include/asm/thread_info.h
@@ -0,0 +1,159 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_THREAD_INFO_H
10#define _ASM_MICROBLAZE_THREAD_INFO_H
11
12#ifdef __KERNEL__
13
14/* we have 8k stack */
15#define THREAD_SHIFT 13
16#define THREAD_SIZE (1 << THREAD_SHIFT)
17#define THREAD_SIZE_ORDER 1
18
19#ifndef __ASSEMBLY__
20# include <linux/types.h>
21# include <asm/processor.h>
22# include <asm/segment.h>
23
24/*
25 * low level task data that entry.S needs immediate access to
26 * - this struct should fit entirely inside of one cache line
27 * - this struct shares the supervisor stack pages
28 * - if the contents of this structure are changed, the assembly constants
29 * must also be changed
30 */
31
32struct cpu_context {
33 __u32 r1; /* stack pointer */
34 __u32 r2;
35 /* dedicated registers */
36 __u32 r13;
37 __u32 r14;
38 __u32 r15;
39 __u32 r16;
40 __u32 r17;
41 __u32 r18;
42 /* non-volatile registers */
43 __u32 r19;
44 __u32 r20;
45 __u32 r21;
46 __u32 r22;
47 __u32 r23;
48 __u32 r24;
49 __u32 r25;
50 __u32 r26;
51 __u32 r27;
52 __u32 r28;
53 __u32 r29;
54 __u32 r30;
55 /* r31 is used as current task pointer */
56 /* special purpose registers */
57 __u32 msr;
58 __u32 ear;
59 __u32 esr;
60 __u32 fsr;
61};
62
63struct thread_info {
64 struct task_struct *task; /* main task structure */
65 struct exec_domain *exec_domain; /* execution domain */
66 unsigned long flags; /* low level flags */
67 unsigned long status; /* thread-synchronous flags */
68 __u32 cpu; /* current CPU */
69 __s32 preempt_count; /* 0 => preemptable,< 0 => BUG*/
70 mm_segment_t addr_limit; /* thread address space */
71 struct restart_block restart_block;
72
73 struct cpu_context cpu_context;
74};
75
76/*
77 * macros/functions for gaining access to the thread information structure
78 *
79 * preempt_count needs to be 1 initially, until the scheduler is functional.
80 */
81#define INIT_THREAD_INFO(tsk) \
82{ \
83 .task = &tsk, \
84 .exec_domain = &default_exec_domain, \
85 .flags = 0, \
86 .cpu = 0, \
87 .preempt_count = 1, \
88 .addr_limit = KERNEL_DS, \
89 .restart_block = { \
90 .fn = do_no_restart_syscall, \
91 }, \
92}
93
94#define init_thread_info (init_thread_union.thread_info)
95#define init_stack (init_thread_union.stack)
96
97/* how to get the thread information struct from C */
98static inline struct thread_info *current_thread_info(void)
99{
100 register unsigned long sp asm("r1");
101
102 return (struct thread_info *)(sp & ~(THREAD_SIZE-1));
103}
104
105/* thread information allocation */
106#endif /* __ASSEMBLY__ */
107
108#define PREEMPT_ACTIVE 0x10000000
109
110/*
111 * thread information flags
112 * - these are process state flags that various assembly files may
113 * need to access
114 * - pending work-to-be-done flags are in LSW
115 * - other flags in MSW
116 */
117#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
118#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
119#define TIF_SIGPENDING 2 /* signal pending */
120#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
121/* restore singlestep on return to user mode */
122#define TIF_SINGLESTEP 4
123#define TIF_IRET 5 /* return with iret */
124#define TIF_MEMDIE 6
125#define TIF_FREEZE 14 /* Freezing for suspend */
126
127/* FIXME change in entry.S */
128#define TIF_KERNEL_TRACE 8 /* kernel trace active */
129
130/* true if poll_idle() is polling TIF_NEED_RESCHED */
131#define TIF_POLLING_NRFLAG 16
132
133#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
134#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
135#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
136#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
137#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
138#define _TIF_IRET (1<<TIF_IRET)
139#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
140#define _TIF_FREEZE (1<<TIF_FREEZE)
141#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE)
142
143/* work to do on interrupt/exception return */
144#define _TIF_WORK_MASK 0x0000FFFE
145/* work to do on any return to u-space */
146#define _TIF_ALLWORK_MASK 0x0000FFFF
147
148/*
149 * Thread-synchronous status.
150 *
151 * This is different from the flags in that nobody else
152 * ever touches our thread-synchronous status, so we don't
153 * have to worry about atomic accesses.
154 */
155/* FPU was used by this task this quantum (SMP) */
156#define TS_USEDFPU 0x0001
157
158#endif /* __KERNEL__ */
159#endif /* _ASM_MICROBLAZE_THREAD_INFO_H */
diff --git a/arch/microblaze/include/asm/timex.h b/arch/microblaze/include/asm/timex.h
new file mode 100644
index 000000000000..678525dc6d0b
--- /dev/null
+++ b/arch/microblaze/include/asm/timex.h
@@ -0,0 +1,18 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_TIMEX_H
10#define _ASM_MICROBLAZE_TIMEX_H
11
12#define CLOCK_TICK_RATE 1000 /* Timer input freq. */
13
14typedef unsigned long cycles_t;
15
16#define get_cycles() (0)
17
18#endif /* _ASM_TIMEX_H */
diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h
new file mode 100644
index 000000000000..d1dfe3791127
--- /dev/null
+++ b/arch/microblaze/include/asm/tlb.h
@@ -0,0 +1,16 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_TLB_H
10#define _ASM_MICROBLAZE_TLB_H
11
12#define tlb_flush(tlb) do {} while (0)
13
14#include <asm-generic/tlb.h>
15
16#endif /* _ASM_MICROBLAZE_TLB_H */
diff --git a/arch/microblaze/include/asm/tlbflush.h b/arch/microblaze/include/asm/tlbflush.h
new file mode 100644
index 000000000000..d7fe7629001b
--- /dev/null
+++ b/arch/microblaze/include/asm/tlbflush.h
@@ -0,0 +1,20 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_TLBFLUSH_H
10#define _ASM_MICROBLAZE_TLBFLUSH_H
11
12#define flush_tlb() BUG()
13#define flush_tlb_all() BUG()
14#define flush_tlb_mm(mm) BUG()
15#define flush_tlb_page(vma, addr) BUG()
16#define flush_tlb_range(mm, start, end) BUG()
17#define flush_tlb_pgtables(mm, start, end) BUG()
18#define flush_tlb_kernel_range(start, end) BUG()
19
20#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */
diff --git a/arch/microblaze/include/asm/topology.h b/arch/microblaze/include/asm/topology.h
new file mode 100644
index 000000000000..96bcea5a9920
--- /dev/null
+++ b/arch/microblaze/include/asm/topology.h
@@ -0,0 +1,11 @@
1#include <asm-generic/topology.h>
2
3#ifndef _ASM_MICROBLAZE_TOPOLOGY_H
4#define _ASM_MICROBLAZE_TOPOLOGY_H
5
6struct device_node;
7static inline int of_node_to_nid(struct device_node *device)
8{
9 return 0;
10}
11#endif /* _ASM_MICROBLAZE_TOPOLOGY_H */
diff --git a/arch/microblaze/include/asm/types.h b/arch/microblaze/include/asm/types.h
new file mode 100644
index 000000000000..bebc018318f5
--- /dev/null
+++ b/arch/microblaze/include/asm/types.h
@@ -0,0 +1,38 @@
1/*
2 * Copyright (C) Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_TYPES_H
10#define _ASM_MICROBLAZE_TYPES_H
11
12/*
13 * This file is never included by application software unless
14 * explicitly requested (e.g., via linux/types.h) in which case the
15 * application is Linux specific so (user-) name space pollution is
16 * not a major issue. However, for interoperability, libraries still
17 * need to be careful to avoid a name clashes.
18 */
19
20#include <asm-generic/int-ll64.h>
21
22# ifndef __ASSEMBLY__
23
24typedef unsigned short umode_t;
25
26/*
27 * These aren't exported outside the kernel to avoid name space clashes
28 */
29# ifdef __KERNEL__
30# define BITS_PER_LONG 32
31
32/* Dma addresses are 32-bits wide. */
33
34typedef u32 dma_addr_t;
35
36# endif/* __KERNEL__ */
37# endif /* __ASSEMBLY__ */
38#endif /* _ASM_MICROBLAZE_TYPES_H */
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
new file mode 100644
index 000000000000..5a3ffc308e12
--- /dev/null
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -0,0 +1,134 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_UACCESS_H
10#define _ASM_MICROBLAZE_UACCESS_H
11
12#ifdef __KERNEL__
13#ifndef __ASSEMBLY__
14
15#include <linux/kernel.h>
16#include <linux/errno.h>
17#include <linux/sched.h> /* RLIMIT_FSIZE */
18#include <linux/mm.h>
19
20#include <asm/mmu.h>
21#include <asm/page.h>
22#include <asm/pgtable.h>
23#include <asm/segment.h>
24#include <linux/string.h>
25
26#define VERIFY_READ 0
27#define VERIFY_WRITE 1
28
29extern int ___range_ok(unsigned long addr, unsigned long size);
30
31#define __range_ok(addr, size) \
32 ___range_ok((unsigned long)(addr), (unsigned long)(size))
33
34#define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0)
35#define __access_ok(add, size) (__range_ok((addr), (size)) == 0)
36
37extern inline int bad_user_access_length(void)
38{
39 return 0;
40}
41/* FIXME this is function for optimalization -> memcpy */
42#define __get_user(var, ptr) \
43 ({ \
44 int __gu_err = 0; \
45 switch (sizeof(*(ptr))) { \
46 case 1: \
47 case 2: \
48 case 4: \
49 (var) = *(ptr); \
50 break; \
51 case 8: \
52 memcpy((void *) &(var), (ptr), 8); \
53 break; \
54 default: \
55 (var) = 0; \
56 __gu_err = __get_user_bad(); \
57 break; \
58 } \
59 __gu_err; \
60 })
61
62#define __get_user_bad() (bad_user_access_length(), (-EFAULT))
63
64#define __put_user(var, ptr) \
65 ({ \
66 int __pu_err = 0; \
67 switch (sizeof(*(ptr))) { \
68 case 1: \
69 case 2: \
70 case 4: \
71 *(ptr) = (var); \
72 break; \
73 case 8: { \
74 typeof(*(ptr)) __pu_val = var; \
75 memcpy(ptr, &__pu_val, sizeof(__pu_val));\
76 } \
77 break; \
78 default: \
79 __pu_err = __put_user_bad(); \
80 break; \
81 } \
82 __pu_err; \
83 })
84
85#define __put_user_bad() (bad_user_access_length(), (-EFAULT))
86
87#define put_user(x, ptr) __put_user(x, ptr)
88#define get_user(x, ptr) __get_user(x, ptr)
89
90#define copy_to_user(to, from, n) (memcpy(to, from, n), 0)
91#define copy_from_user(to, from, n) (memcpy(to, from, n), 0)
92
93#define __copy_to_user(to, from, n) (copy_to_user(to, from, n))
94#define __copy_from_user(to, from, n) (copy_from_user(to, from, n))
95#define __copy_to_user_inatomic(to, from, n) (__copy_to_user(to, from, n))
96#define __copy_from_user_inatomic(to, from, n) (__copy_from_user(to, from, n))
97
98#define __clear_user(addr, n) (memset((void *)addr, 0, n), 0)
99
100static inline unsigned long clear_user(void *addr, unsigned long size)
101{
102 if (access_ok(VERIFY_WRITE, addr, size))
103 size = __clear_user(addr, size);
104 return size;
105}
106
107/* Returns 0 if exception not found and fixup otherwise. */
108extern unsigned long search_exception_table(unsigned long);
109
110
111extern long strncpy_from_user(char *dst, const char __user *src, long count);
112extern long strnlen_user(const char __user *src, long count);
113extern long __strncpy_from_user(char *dst, const char __user *src, long count);
114
115/*
116 * The exception table consists of pairs of addresses: the first is the
117 * address of an instruction that is allowed to fault, and the second is
118 * the address at which the program should continue. No registers are
119 * modified, so it is entirely up to the continuation code to figure out
120 * what to do.
121 *
122 * All the routines below use bits of fixup code that are out of line
123 * with the main instruction path. This means when everything is well,
124 * we don't even have to jump over them. Further, they do not intrude
125 * on our cache or tlb entries.
126 */
127struct exception_table_entry {
128 unsigned long insn, fixup;
129};
130
131#endif /* __ASSEMBLY__ */
132#endif /* __KERNEL__ */
133
134#endif /* _ASM_MICROBLAZE_UACCESS_H */
diff --git a/arch/microblaze/include/asm/ucontext.h b/arch/microblaze/include/asm/ucontext.h
new file mode 100644
index 000000000000..11f6bb3ae3a4
--- /dev/null
+++ b/arch/microblaze/include/asm/ucontext.h
@@ -0,0 +1,22 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#ifndef _ASM_MICROBLAZE_UCONTEXT_H
10#define _ASM_MICROBLAZE_UCONTEXT_H
11
12#include <asm/sigcontext.h>
13
14struct ucontext {
15 unsigned long uc_flags;
16 struct ucontext *uc_link;
17 stack_t uc_stack;
18 struct sigcontext uc_mcontext;
19 sigset_t uc_sigmask; /* mask last for extensibility */
20};
21
22#endif /* _ASM_MICROBLAZE_UCONTEXT_H */
diff --git a/arch/microblaze/include/asm/unaligned.h b/arch/microblaze/include/asm/unaligned.h
new file mode 100644
index 000000000000..9d66b640c910
--- /dev/null
+++ b/arch/microblaze/include/asm/unaligned.h
@@ -0,0 +1,22 @@
1/*
2 * Copyright (C) 2008 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2006 Atmark Techno, Inc.
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
9
10#ifndef _ASM_MICROBLAZE_UNALIGNED_H
11#define _ASM_MICROBLAZE_UNALIGNED_H
12
13# ifdef __KERNEL__
14
15# include <linux/unaligned/access_ok.h>
16# include <linux/unaligned/generic.h>
17
18# define get_unaligned __get_unaligned_be
19# define put_unaligned __put_unaligned_be
20
21# endif /* __KERNEL__ */
22#endif /* _ASM_MICROBLAZE_UNALIGNED_H */
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
new file mode 100644
index 000000000000..d9d3903fde3f
--- /dev/null
+++ b/arch/microblaze/include/asm/unistd.h
@@ -0,0 +1,421 @@
1/*
2 * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2006 Atmark Techno, Inc.
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
9
10#ifndef _ASM_MICROBLAZE_UNISTD_H
11#define _ASM_MICROBLAZE_UNISTD_H
12
13#define __NR_restart_syscall 0 /* ok */
14#define __NR_exit 1 /* ok */
15#define __NR_fork 2 /* not for no MMU - weird */
16#define __NR_read 3 /* ok */
17#define __NR_write 4 /* ok */
18#define __NR_open 5 /* openat */
19#define __NR_close 6 /* ok */
20#define __NR_waitpid 7 /* waitid */
21#define __NR_creat 8 /* openat */
22#define __NR_link 9 /* linkat */
23#define __NR_unlink 10 /* unlinkat */
24#define __NR_execve 11 /* ok */
25#define __NR_chdir 12 /* ok */
26#define __NR_time 13 /* obsolete -> sys_gettimeofday */
27#define __NR_mknod 14 /* mknodat */
28#define __NR_chmod 15 /* fchmodat */
29#define __NR_lchown 16 /* ok */
30#define __NR_break 17 /* don't know */
31#define __NR_oldstat 18 /* remove */
32#define __NR_lseek 19 /* ok */
33#define __NR_getpid 20 /* ok */
34#define __NR_mount 21 /* ok */
35#define __NR_umount 22 /* ok */ /* use only umount2 */
36#define __NR_setuid 23 /* ok */
37#define __NR_getuid 24 /* ok */
38#define __NR_stime 25 /* obsolete -> sys_settimeofday */
39#define __NR_ptrace 26 /* ok */
40#define __NR_alarm 27 /* obsolete -> sys_setitimer */
41#define __NR_oldfstat 28 /* remove */
42#define __NR_pause 29 /* obsolete -> sys_rt_sigtimedwait */
43#define __NR_utime 30 /* obsolete -> sys_utimesat */
44#define __NR_stty 31 /* remove */
45#define __NR_gtty 32 /* remove */
46#define __NR_access 33 /* faccessat */
47/* can be implemented by sys_setpriority */
48#define __NR_nice 34
49#define __NR_ftime 35 /* remove */
50#define __NR_sync 36 /* ok */
51#define __NR_kill 37 /* ok */
52#define __NR_rename 38 /* renameat */
53#define __NR_mkdir 39 /* mkdirat */
54#define __NR_rmdir 40 /* unlinkat */
55#define __NR_dup 41 /* ok */
56#define __NR_pipe 42 /* ok */
57#define __NR_times 43 /* ok */
58#define __NR_prof 44 /* remove */
59#define __NR_brk 45 /* ok -mmu, nommu specific */
60#define __NR_setgid 46 /* ok */
61#define __NR_getgid 47 /* ok */
62#define __NR_signal 48 /* obsolete -> sys_rt_sigaction */
63#define __NR_geteuid 49 /* ok */
64#define __NR_getegid 50 /* ok */
65#define __NR_acct 51 /* add it and then I can disable it */
66#define __NR_umount2 52 /* remove */
67#define __NR_lock 53 /* remove */
68#define __NR_ioctl 54 /* ok */
69#define __NR_fcntl 55 /* ok -> 64bit version*/
70#define __NR_mpx 56 /* remove */
71#define __NR_setpgid 57 /* ok */
72#define __NR_ulimit 58 /* remove */
73#define __NR_oldolduname 59 /* remove */
74#define __NR_umask 60 /* ok */
75#define __NR_chroot 61 /* ok */
76#define __NR_ustat 62 /* obsolete -> statfs64 */
77#define __NR_dup2 63 /* ok */
78#define __NR_getppid 64 /* ok */
79#define __NR_getpgrp 65 /* obsolete -> sys_getpgid */
80#define __NR_setsid 66 /* ok */
81#define __NR_sigaction 67 /* obsolete -> rt_sigaction */
82#define __NR_sgetmask 68 /* obsolete -> sys_rt_sigprocmask */
83#define __NR_ssetmask 69 /* obsolete ->sys_rt_sigprocmask */
84#define __NR_setreuid 70 /* ok */
85#define __NR_setregid 71 /* ok */
86#define __NR_sigsuspend 72 /* obsolete -> rt_sigsuspend */
87#define __NR_sigpending 73 /* obsolete -> sys_rt_sigpending */
88#define __NR_sethostname 74 /* ok */
89#define __NR_setrlimit 75 /* ok */
90#define __NR_getrlimit 76 /* ok Back compatible 2G limited rlimit */
91#define __NR_getrusage 77 /* ok */
92#define __NR_gettimeofday 78 /* ok */
93#define __NR_settimeofday 79 /* ok */
94#define __NR_getgroups 80 /* ok */
95#define __NR_setgroups 81 /* ok */
96#define __NR_select 82 /* obsolete -> sys_pselect7 */
97#define __NR_symlink 83 /* symlinkat */
98#define __NR_oldlstat 84 /* remove */
99#define __NR_readlink 85 /* obsolete -> sys_readlinkat */
100#define __NR_uselib 86 /* remove */
101#define __NR_swapon 87 /* ok */
102#define __NR_reboot 88 /* ok */
103#define __NR_readdir 89 /* remove ? */
104#define __NR_mmap 90 /* obsolete -> sys_mmap2 */
105#define __NR_munmap 91 /* ok - mmu and nommu */
106#define __NR_truncate 92 /* ok or truncate64 */
107#define __NR_ftruncate 93 /* ok or ftruncate64 */
108#define __NR_fchmod 94 /* ok */
109#define __NR_fchown 95 /* ok */
110#define __NR_getpriority 96 /* ok */
111#define __NR_setpriority 97 /* ok */
112#define __NR_profil 98 /* remove */
113#define __NR_statfs 99 /* ok or statfs64 */
114#define __NR_fstatfs 100 /* ok or fstatfs64 */
115#define __NR_ioperm 101 /* remove */
116#define __NR_socketcall 102 /* remove */
117#define __NR_syslog 103 /* ok */
118#define __NR_setitimer 104 /* ok */
119#define __NR_getitimer 105 /* ok */
120#define __NR_stat 106 /* remove */
121#define __NR_lstat 107 /* remove */
122#define __NR_fstat 108 /* remove */
123#define __NR_olduname 109 /* remove */
124#define __NR_iopl 110 /* remove */
125#define __NR_vhangup 111 /* ok */
126#define __NR_idle 112 /* remove */
127#define __NR_vm86old 113 /* remove */
128#define __NR_wait4 114 /* obsolete -> waitid */
129#define __NR_swapoff 115 /* ok */
130#define __NR_sysinfo 116 /* ok */
131#define __NR_ipc 117 /* remove - direct call */
132#define __NR_fsync 118 /* ok */
133#define __NR_sigreturn 119 /* obsolete -> sys_rt_sigreturn */
134#define __NR_clone 120 /* ok */
135#define __NR_setdomainname 121 /* ok */
136#define __NR_uname 122 /* remove */
137#define __NR_modify_ldt 123 /* remove */
138#define __NR_adjtimex 124 /* ok */
139#define __NR_mprotect 125 /* remove */
140#define __NR_sigprocmask 126 /* obsolete -> sys_rt_sigprocmask */
141#define __NR_create_module 127 /* remove */
142#define __NR_init_module 128 /* ok */
143#define __NR_delete_module 129 /* ok */
144#define __NR_get_kernel_syms 130 /* remove */
145#define __NR_quotactl 131 /* ok */
146#define __NR_getpgid 132 /* ok */
147#define __NR_fchdir 133 /* ok */
148#define __NR_bdflush 134 /* remove */
149#define __NR_sysfs 135 /* needed for busybox */
150#define __NR_personality 136 /* ok */
151#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
152#define __NR_setfsuid 138 /* ok */
153#define __NR_setfsgid 139 /* ok */
154#define __NR__llseek 140 /* remove only lseek */
155#define __NR_getdents 141 /* ok or getdents64 */
156#define __NR__newselect 142 /* remove */
157#define __NR_flock 143 /* ok */
158#define __NR_msync 144 /* remove */
159#define __NR_readv 145 /* ok */
160#define __NR_writev 146 /* ok */
161#define __NR_getsid 147 /* ok */
162#define __NR_fdatasync 148 /* ok */
163#define __NR__sysctl 149 /* remove */
164#define __NR_mlock 150 /* ok - nommu or mmu */
165#define __NR_munlock 151 /* ok - nommu or mmu */
166#define __NR_mlockall 152 /* ok - nommu or mmu */
167#define __NR_munlockall 153 /* ok - nommu or mmu */
168#define __NR_sched_setparam 154 /* ok */
169#define __NR_sched_getparam 155 /* ok */
170#define __NR_sched_setscheduler 156 /* ok */
171#define __NR_sched_getscheduler 157 /* ok */
172#define __NR_sched_yield 158 /* ok */
173#define __NR_sched_get_priority_max 159 /* ok */
174#define __NR_sched_get_priority_min 160 /* ok */
175#define __NR_sched_rr_get_interval 161 /* ok */
176#define __NR_nanosleep 162 /* ok */
177#define __NR_mremap 163 /* ok - nommu or mmu */
178#define __NR_setresuid 164 /* ok */
179#define __NR_getresuid 165 /* ok */
180#define __NR_vm86 166 /* remove */
181#define __NR_query_module 167 /* ok */
182#define __NR_poll 168 /* obsolete -> sys_ppoll */
183#define __NR_nfsservctl 169 /* ok */
184#define __NR_setresgid 170 /* ok */
185#define __NR_getresgid 171 /* ok */
186#define __NR_prctl 172 /* ok */
187#define __NR_rt_sigreturn 173 /* ok */
188#define __NR_rt_sigaction 174 /* ok */
189#define __NR_rt_sigprocmask 175 /* ok */
190#define __NR_rt_sigpending 176 /* ok */
191#define __NR_rt_sigtimedwait 177 /* ok */
192#define __NR_rt_sigqueueinfo 178 /* ok */
193#define __NR_rt_sigsuspend 179 /* ok */
194#define __NR_pread64 180 /* ok */
195#define __NR_pwrite64 181 /* ok */
196#define __NR_chown 182 /* obsolete -> fchownat */
197#define __NR_getcwd 183 /* ok */
198#define __NR_capget 184 /* ok */
199#define __NR_capset 185 /* ok */
200#define __NR_sigaltstack 186 /* remove */
201#define __NR_sendfile 187 /* ok -> exist 64bit version*/
202#define __NR_getpmsg 188 /* remove */
203/* remove - some people actually want streams */
204#define __NR_putpmsg 189
205/* for noMMU - group with clone -> maybe remove */
206#define __NR_vfork 190
207#define __NR_ugetrlimit 191 /* remove - SuS compliant getrlimit */
208#define __NR_mmap2 192 /* ok */
209#define __NR_truncate64 193 /* ok */
210#define __NR_ftruncate64 194 /* ok */
211#define __NR_stat64 195 /* remove _ARCH_WANT_STAT64 */
212#define __NR_lstat64 196 /* remove _ARCH_WANT_STAT64 */
213#define __NR_fstat64 197 /* remove _ARCH_WANT_STAT64 */
214#define __NR_lchown32 198 /* ok - without 32 */
215#define __NR_getuid32 199 /* ok - without 32 */
216#define __NR_getgid32 200 /* ok - without 32 */
217#define __NR_geteuid32 201 /* ok - without 32 */
218#define __NR_getegid32 202 /* ok - without 32 */
219#define __NR_setreuid32 203 /* ok - without 32 */
220#define __NR_setregid32 204 /* ok - without 32 */
221#define __NR_getgroups32 205 /* ok - without 32 */
222#define __NR_setgroups32 206 /* ok - without 32 */
223#define __NR_fchown32 207 /* ok - without 32 */
224#define __NR_setresuid32 208 /* ok - without 32 */
225#define __NR_getresuid32 209 /* ok - without 32 */
226#define __NR_setresgid32 210 /* ok - without 32 */
227#define __NR_getresgid32 211 /* ok - without 32 */
228#define __NR_chown32 212 /* ok - without 32 -obsolete -> fchownat */
229#define __NR_setuid32 213 /* ok - without 32 */
230#define __NR_setgid32 214 /* ok - without 32 */
231#define __NR_setfsuid32 215 /* ok - without 32 */
232#define __NR_setfsgid32 216 /* ok - without 32 */
233#define __NR_pivot_root 217 /* ok */
234#define __NR_mincore 218 /* ok */
235#define __NR_madvise 219 /* ok */
236#define __NR_getdents64 220 /* ok */
237#define __NR_fcntl64 221 /* ok */
238/* 223 is unused */
239#define __NR_gettid 224 /* ok */
240#define __NR_readahead 225 /* ok */
241#define __NR_setxattr 226 /* ok */
242#define __NR_lsetxattr 227 /* ok */
243#define __NR_fsetxattr 228 /* ok */
244#define __NR_getxattr 229 /* ok */
245#define __NR_lgetxattr 230 /* ok */
246#define __NR_fgetxattr 231 /* ok */
247#define __NR_listxattr 232 /* ok */
248#define __NR_llistxattr 233 /* ok */
249#define __NR_flistxattr 234 /* ok */
250#define __NR_removexattr 235 /* ok */
251#define __NR_lremovexattr 236 /* ok */
252#define __NR_fremovexattr 237 /* ok */
253#define __NR_tkill 238 /* ok */
254#define __NR_sendfile64 239 /* ok */
255#define __NR_futex 240 /* ok */
256#define __NR_sched_setaffinity 241 /* ok */
257#define __NR_sched_getaffinity 242 /* ok */
258#define __NR_set_thread_area 243 /* remove */
259#define __NR_get_thread_area 244 /* remove */
260#define __NR_io_setup 245 /* ok */
261#define __NR_io_destroy 246 /* ok */
262#define __NR_io_getevents 247 /* ok */
263#define __NR_io_submit 248 /* ok */
264#define __NR_io_cancel 249 /* ok */
265#define __NR_fadvise64 250 /* remove -> sys_fadvise64_64 */
266/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
267#define __NR_exit_group 252 /* ok */
268#define __NR_lookup_dcookie 253 /* ok */
269#define __NR_epoll_create 254 /* ok */
270#define __NR_epoll_ctl 255 /* ok */
271#define __NR_epoll_wait 256 /* obsolete -> sys_epoll_pwait */
272#define __NR_remap_file_pages 257 /* only for mmu */
273#define __NR_set_tid_address 258 /* ok */
274#define __NR_timer_create 259 /* ok */
275#define __NR_timer_settime (__NR_timer_create+1) /* 260 */ /* ok */
276#define __NR_timer_gettime (__NR_timer_create+2) /* 261 */ /* ok */
277#define __NR_timer_getoverrun (__NR_timer_create+3) /* 262 */ /* ok */
278#define __NR_timer_delete (__NR_timer_create+4) /* 263 */ /* ok */
279#define __NR_clock_settime (__NR_timer_create+5) /* 264 */ /* ok */
280#define __NR_clock_gettime (__NR_timer_create+6) /* 265 */ /* ok */
281#define __NR_clock_getres (__NR_timer_create+7) /* 266 */ /* ok */
282#define __NR_clock_nanosleep (__NR_timer_create+8) /* 267 */ /* ok */
283#define __NR_statfs64 268 /* ok */
284#define __NR_fstatfs64 269 /* ok */
285#define __NR_tgkill 270 /* ok */
286#define __NR_utimes 271 /* obsolete -> sys_futimesat */
287#define __NR_fadvise64_64 272 /* ok */
288#define __NR_vserver 273 /* ok */
289#define __NR_mbind 274 /* only for mmu */
290#define __NR_get_mempolicy 275 /* only for mmu */
291#define __NR_set_mempolicy 276 /* only for mmu */
292#define __NR_mq_open 277 /* ok */
293#define __NR_mq_unlink (__NR_mq_open+1) /* 278 */ /* ok */
294#define __NR_mq_timedsend (__NR_mq_open+2) /* 279 */ /* ok */
295#define __NR_mq_timedreceive (__NR_mq_open+3) /* 280 */ /* ok */
296#define __NR_mq_notify (__NR_mq_open+4) /* 281 */ /* ok */
297#define __NR_mq_getsetattr (__NR_mq_open+5) /* 282 */ /* ok */
298#define __NR_kexec_load 283 /* ok */
299#define __NR_waitid 284 /* ok */
300/* #define __NR_sys_setaltroot 285 */
301#define __NR_add_key 286 /* ok */
302#define __NR_request_key 287 /* ok */
303#define __NR_keyctl 288 /* ok */
304#define __NR_ioprio_set 289 /* ok */
305#define __NR_ioprio_get 290 /* ok */
306#define __NR_inotify_init 291 /* ok */
307#define __NR_inotify_add_watch 292 /* ok */
308#define __NR_inotify_rm_watch 293 /* ok */
309#define __NR_migrate_pages 294 /* mmu */
310#define __NR_openat 295 /* ok */
311#define __NR_mkdirat 296 /* ok */
312#define __NR_mknodat 297 /* ok */
313#define __NR_fchownat 298 /* ok */
314#define __NR_futimesat 299 /* obsolete -> sys_utimesat */
315#define __NR_fstatat64 300 /* stat64 */
316#define __NR_unlinkat 301 /* ok */
317#define __NR_renameat 302 /* ok */
318#define __NR_linkat 303 /* ok */
319#define __NR_symlinkat 304 /* ok */
320#define __NR_readlinkat 305 /* ok */
321#define __NR_fchmodat 306 /* ok */
322#define __NR_faccessat 307 /* ok */
323#define __NR_pselect6 308 /* obsolete -> sys_pselect7 */
324#define __NR_ppoll 309 /* ok */
325#define __NR_unshare 310 /* ok */
326#define __NR_set_robust_list 311 /* ok */
327#define __NR_get_robust_list 312 /* ok */
328#define __NR_splice 313 /* ok */
329#define __NR_sync_file_range 314 /* ok */
330#define __NR_tee 315 /* ok */
331#define __NR_vmsplice 316 /* ok */
332#define __NR_move_pages 317 /* mmu */
333#define __NR_getcpu 318 /* ok */
334#define __NR_epoll_pwait 319 /* ok */
335#define __NR_utimensat 320 /* ok */
336#define __NR_signalfd 321 /* ok */
337#define __NR_timerfd_create 322 /* ok */
338#define __NR_eventfd 323 /* ok */
339#define __NR_fallocate 324 /* ok */
340#define __NR_semtimedop 325 /* ok - semaphore group */
341#define __NR_timerfd_settime 326 /* ok */
342#define __NR_timerfd_gettime 327 /* ok */
343/* sysv ipc syscalls */
344#define __NR_semctl 328 /* ok */
345#define __NR_semget 329 /* ok */
346#define __NR_semop 330 /* ok */
347#define __NR_msgctl 331 /* ok */
348#define __NR_msgget 332 /* ok */
349#define __NR_msgrcv 333 /* ok */
350#define __NR_msgsnd 334 /* ok */
351#define __NR_shmat 335 /* ok */
352#define __NR_shmctl 336 /* ok */
353#define __NR_shmdt 337 /* ok */
354#define __NR_shmget 338 /* ok */
355
356
357#define __NR_signalfd4 339 /* new */
358#define __NR_eventfd2 340 /* new */
359#define __NR_epoll_create1 341 /* new */
360#define __NR_dup3 342 /* new */
361#define __NR_pipe2 343 /* new */
362#define __NR_inotify_init1 344 /* new */
363#define __NR_socket 345 /* new */
364#define __NR_socketpair 346 /* new */
365#define __NR_bind 347 /* new */
366#define __NR_listen 348 /* new */
367#define __NR_accept 349 /* new */
368#define __NR_connect 350 /* new */
369#define __NR_getsockname 351 /* new */
370#define __NR_getpeername 352 /* new */
371#define __NR_sendto 353 /* new */
372#define __NR_send 354 /* new */
373#define __NR_recvfrom 355 /* new */
374#define __NR_recv 356 /* new */
375#define __NR_setsockopt 357 /* new */
376#define __NR_getsockopt 358 /* new */
377#define __NR_shutdown 359 /* new */
378#define __NR_sendmsg 360 /* new */
379#define __NR_recvmsg 361 /* new */
380#define __NR_accept04 362 /* new */
381
382#define __NR_syscalls 363
383
384#ifdef __KERNEL__
385#ifndef __ASSEMBLY__
386
387#define __ARCH_WANT_IPC_PARSE_VERSION
388/* #define __ARCH_WANT_OLD_READDIR */
389/* #define __ARCH_WANT_OLD_STAT */
390#define __ARCH_WANT_STAT64
391#define __ARCH_WANT_SYS_ALARM
392#define __ARCH_WANT_SYS_GETHOSTNAME
393#define __ARCH_WANT_SYS_PAUSE
394#define __ARCH_WANT_SYS_SGETMASK
395#define __ARCH_WANT_SYS_SIGNAL
396#define __ARCH_WANT_SYS_TIME
397#define __ARCH_WANT_SYS_UTIME
398#define __ARCH_WANT_SYS_WAITPID
399#define __ARCH_WANT_SYS_SOCKETCALL
400#define __ARCH_WANT_SYS_FADVISE64
401#define __ARCH_WANT_SYS_GETPGRP
402#define __ARCH_WANT_SYS_LLSEEK
403#define __ARCH_WANT_SYS_NICE
404/* #define __ARCH_WANT_SYS_OLD_GETRLIMIT */
405#define __ARCH_WANT_SYS_OLDUMOUNT
406#define __ARCH_WANT_SYS_SIGPENDING
407#define __ARCH_WANT_SYS_SIGPROCMASK
408#define __ARCH_WANT_SYS_RT_SIGACTION
409/* #define __ARCH_WANT_SYS_RT_SIGSUSPEND */
410
411/*
412 * "Conditional" syscalls
413 *
414 * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
415 * but it doesn't work on all toolchains, so we just do it by hand
416 */
417#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
418
419#endif /* __ASSEMBLY__ */
420#endif /* __KERNEL__ */
421#endif /* _ASM_MICROBLAZE_UNISTD_H */
diff --git a/arch/microblaze/include/asm/user.h b/arch/microblaze/include/asm/user.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/arch/microblaze/include/asm/user.h
diff --git a/arch/microblaze/include/asm/vga.h b/arch/microblaze/include/asm/vga.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/arch/microblaze/include/asm/vga.h
diff --git a/arch/microblaze/include/asm/xor.h b/arch/microblaze/include/asm/xor.h
new file mode 100644
index 000000000000..c82eb12a5b18
--- /dev/null
+++ b/arch/microblaze/include/asm/xor.h
@@ -0,0 +1 @@
#include <asm-generic/xor.h>
diff --git a/arch/microblaze/kernel/Makefile b/arch/microblaze/kernel/Makefile
new file mode 100644
index 000000000000..da94bec4ecba
--- /dev/null
+++ b/arch/microblaze/kernel/Makefile
@@ -0,0 +1,19 @@
1#
2# Makefile
3#
4
5extra-y := head.o vmlinux.lds
6
7obj-y += exceptions.o \
8 hw_exception_handler.o init_task.o intc.o irq.o of_device.o \
9 of_platform.o process.o prom.o prom_parse.o ptrace.o \
10 setup.o signal.o sys_microblaze.o timer.o traps.o
11
12obj-y += cpu/
13
14obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
15obj-$(CONFIG_SELFMOD) += selfmod.o
16obj-$(CONFIG_HEART_BEAT) += heartbeat.o
17obj-$(CONFIG_MODULES) += microblaze_ksyms.o module.o
18
19obj-y += entry$(MMUEXT).o
diff --git a/arch/microblaze/kernel/asm-offsets.c b/arch/microblaze/kernel/asm-offsets.c
new file mode 100644
index 000000000000..38e1a2e8ad0c
--- /dev/null
+++ b/arch/microblaze/kernel/asm-offsets.c
@@ -0,0 +1,115 @@
1/*
2 * Copyright (C) 2007-2009 PetaLogix
3 * Copyright (C) 2006 Atmark Techno, Inc.
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
9
10#include <linux/init.h>
11#include <linux/stddef.h>
12#include <linux/sched.h>
13#include <linux/kernel_stat.h>
14#include <linux/ptrace.h>
15#include <linux/hardirq.h>
16#include <linux/thread_info.h>
17#include <linux/kbuild.h>
18
19int main(int argc, char *argv[])
20{
21 /* struct pt_regs */
22 DEFINE(PT_SIZE, sizeof(struct pt_regs));
23 DEFINE(PT_MSR, offsetof(struct pt_regs, msr));
24 DEFINE(PT_EAR, offsetof(struct pt_regs, ear));
25 DEFINE(PT_ESR, offsetof(struct pt_regs, esr));
26 DEFINE(PT_FSR, offsetof(struct pt_regs, fsr));
27 DEFINE(PT_PC, offsetof(struct pt_regs, pc));
28 DEFINE(PT_R0, offsetof(struct pt_regs, r0));
29 DEFINE(PT_R1, offsetof(struct pt_regs, r1));
30 DEFINE(PT_R2, offsetof(struct pt_regs, r2));
31 DEFINE(PT_R3, offsetof(struct pt_regs, r3));
32 DEFINE(PT_R4, offsetof(struct pt_regs, r4));
33 DEFINE(PT_R5, offsetof(struct pt_regs, r5));
34 DEFINE(PT_R6, offsetof(struct pt_regs, r6));
35 DEFINE(PT_R7, offsetof(struct pt_regs, r7));
36 DEFINE(PT_R8, offsetof(struct pt_regs, r8));
37 DEFINE(PT_R9, offsetof(struct pt_regs, r9));
38 DEFINE(PT_R10, offsetof(struct pt_regs, r10));
39 DEFINE(PT_R11, offsetof(struct pt_regs, r11));
40 DEFINE(PT_R12, offsetof(struct pt_regs, r12));
41 DEFINE(PT_R13, offsetof(struct pt_regs, r13));
42 DEFINE(PT_R14, offsetof(struct pt_regs, r14));
43 DEFINE(PT_R15, offsetof(struct pt_regs, r15));
44 DEFINE(PT_R16, offsetof(struct pt_regs, r16));
45 DEFINE(PT_R17, offsetof(struct pt_regs, r17));
46 DEFINE(PT_R18, offsetof(struct pt_regs, r18));
47 DEFINE(PT_R19, offsetof(struct pt_regs, r19));
48 DEFINE(PT_R20, offsetof(struct pt_regs, r20));
49 DEFINE(PT_R21, offsetof(struct pt_regs, r21));
50 DEFINE(PT_R22, offsetof(struct pt_regs, r22));
51 DEFINE(PT_R23, offsetof(struct pt_regs, r23));
52 DEFINE(PT_R24, offsetof(struct pt_regs, r24));
53 DEFINE(PT_R25, offsetof(struct pt_regs, r25));
54 DEFINE(PT_R26, offsetof(struct pt_regs, r26));
55 DEFINE(PT_R27, offsetof(struct pt_regs, r27));
56 DEFINE(PT_R28, offsetof(struct pt_regs, r28));
57 DEFINE(PT_R29, offsetof(struct pt_regs, r29));
58 DEFINE(PT_R30, offsetof(struct pt_regs, r30));
59 DEFINE(PT_R31, offsetof(struct pt_regs, r31));
60 DEFINE(PT_MODE, offsetof(struct pt_regs, kernel_mode));
61 BLANK();
62
63 /* Magic offsets for PTRACE PEEK/POKE etc */
64 DEFINE(PT_TEXT_ADDR, sizeof(struct pt_regs) + 1);
65 DEFINE(PT_TEXT_LEN, sizeof(struct pt_regs) + 2);
66 DEFINE(PT_DATA_ADDR, sizeof(struct pt_regs) + 3);
67 BLANK();
68
69 /* struct task_struct */
70 DEFINE(TS_THREAD_INFO, offsetof(struct task_struct, stack));
71
72 /* struct thread_info */
73 DEFINE(TI_TASK, offsetof(struct thread_info, task));
74 DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
75 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
76 DEFINE(TI_STATUS, offsetof(struct thread_info, status));
77 DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
78 DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
79 DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
80 DEFINE(TI_RESTART_BLOCK, offsetof(struct thread_info, restart_block));
81 DEFINE(TI_CPU_CONTEXT, offsetof(struct thread_info, cpu_context));
82 BLANK();
83
84 /* struct cpu_context */
85 DEFINE(CC_R1, offsetof(struct cpu_context, r1)); /* r1 */
86 DEFINE(CC_R2, offsetof(struct cpu_context, r2));
87 /* dedicated registers */
88 DEFINE(CC_R13, offsetof(struct cpu_context, r13));
89 DEFINE(CC_R14, offsetof(struct cpu_context, r14));
90 DEFINE(CC_R15, offsetof(struct cpu_context, r15));
91 DEFINE(CC_R16, offsetof(struct cpu_context, r16));
92 DEFINE(CC_R17, offsetof(struct cpu_context, r17));
93 DEFINE(CC_R18, offsetof(struct cpu_context, r18));
94 /* non-volatile registers */
95 DEFINE(CC_R19, offsetof(struct cpu_context, r19));
96 DEFINE(CC_R20, offsetof(struct cpu_context, r20));
97 DEFINE(CC_R21, offsetof(struct cpu_context, r21));
98 DEFINE(CC_R22, offsetof(struct cpu_context, r22));
99 DEFINE(CC_R23, offsetof(struct cpu_context, r23));
100 DEFINE(CC_R24, offsetof(struct cpu_context, r24));
101 DEFINE(CC_R25, offsetof(struct cpu_context, r25));
102 DEFINE(CC_R26, offsetof(struct cpu_context, r26));
103 DEFINE(CC_R27, offsetof(struct cpu_context, r27));
104 DEFINE(CC_R28, offsetof(struct cpu_context, r28));
105 DEFINE(CC_R29, offsetof(struct cpu_context, r29));
106 DEFINE(CC_R30, offsetof(struct cpu_context, r30));
107 /* special purpose registers */
108 DEFINE(CC_MSR, offsetof(struct cpu_context, msr));
109 DEFINE(CC_EAR, offsetof(struct cpu_context, ear));
110 DEFINE(CC_ESR, offsetof(struct cpu_context, esr));
111 DEFINE(CC_FSR, offsetof(struct cpu_context, fsr));
112 BLANK();
113
114 return 0;
115}
diff --git a/arch/microblaze/kernel/cpu/Makefile b/arch/microblaze/kernel/cpu/Makefile
new file mode 100644
index 000000000000..20646e549271
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/Makefile
@@ -0,0 +1,8 @@
1#
2# Build the appropriate CPU version support
3#
4
5EXTRA_CFLAGS += -DCPU_MAJOR=$(CPU_MAJOR) -DCPU_MINOR=$(CPU_MINOR) \
6 -DCPU_REV=$(CPU_REV)
7
8obj-y += cache.o cpuinfo.o cpuinfo-pvr-full.o cpuinfo-static.o mb.o pvr.o
diff --git a/arch/microblaze/kernel/cpu/cache.c b/arch/microblaze/kernel/cpu/cache.c
new file mode 100644
index 000000000000..be9fecca4f91
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cache.c
@@ -0,0 +1,258 @@
1/*
2 * Cache control for MicroBlaze cache memories
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007-2009 PetaLogix
6 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
7 *
8 * This file is subject to the terms and conditions of the GNU General
9 * Public License. See the file COPYING in the main directory of this
10 * archive for more details.
11 */
12
13#include <asm/cacheflush.h>
14#include <linux/cache.h>
15#include <asm/cpuinfo.h>
16
17/* Exported functions */
18
19void _enable_icache(void)
20{
21 if (cpuinfo.use_icache) {
22#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
23 __asm__ __volatile__ (" \
24 msrset r0, %0; \
25 nop; " \
26 : \
27 : "i" (MSR_ICE) \
28 : "memory");
29#else
30 __asm__ __volatile__ (" \
31 mfs r12, rmsr; \
32 nop; \
33 ori r12, r12, %0; \
34 mts rmsr, r12; \
35 nop; " \
36 : \
37 : "i" (MSR_ICE) \
38 : "memory", "r12");
39#endif
40 }
41}
42
43void _disable_icache(void)
44{
45 if (cpuinfo.use_icache) {
46#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
47 __asm__ __volatile__ (" \
48 msrclr r0, %0; \
49 nop; " \
50 : \
51 : "i" (MSR_ICE) \
52 : "memory");
53#else
54 __asm__ __volatile__ (" \
55 mfs r12, rmsr; \
56 nop; \
57 andi r12, r12, ~%0; \
58 mts rmsr, r12; \
59 nop; " \
60 : \
61 : "i" (MSR_ICE) \
62 : "memory", "r12");
63#endif
64 }
65}
66
67void _invalidate_icache(unsigned int addr)
68{
69 if (cpuinfo.use_icache) {
70 __asm__ __volatile__ (" \
71 wic %0, r0" \
72 : \
73 : "r" (addr));
74 }
75}
76
77void _enable_dcache(void)
78{
79 if (cpuinfo.use_dcache) {
80#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
81 __asm__ __volatile__ (" \
82 msrset r0, %0; \
83 nop; " \
84 : \
85 : "i" (MSR_DCE) \
86 : "memory");
87#else
88 __asm__ __volatile__ (" \
89 mfs r12, rmsr; \
90 nop; \
91 ori r12, r12, %0; \
92 mts rmsr, r12; \
93 nop; " \
94 : \
95 : "i" (MSR_DCE) \
96 : "memory", "r12");
97#endif
98 }
99}
100
101void _disable_dcache(void)
102{
103 if (cpuinfo.use_dcache) {
104#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
105 __asm__ __volatile__ (" \
106 msrclr r0, %0; \
107 nop; " \
108 : \
109 : "i" (MSR_DCE) \
110 : "memory");
111#else
112 __asm__ __volatile__ (" \
113 mfs r12, rmsr; \
114 nop; \
115 andi r12, r12, ~%0; \
116 mts rmsr, r12; \
117 nop; " \
118 : \
119 : "i" (MSR_DCE) \
120 : "memory", "r12");
121#endif
122 }
123}
124
125void _invalidate_dcache(unsigned int addr)
126{
127 if (cpuinfo.use_dcache)
128 __asm__ __volatile__ (" \
129 wdc %0, r0" \
130 : \
131 : "r" (addr));
132}
133
134void __invalidate_icache_all(void)
135{
136 unsigned int i;
137 unsigned flags;
138
139 if (cpuinfo.use_icache) {
140 local_irq_save(flags);
141 __disable_icache();
142
143 /* Just loop through cache size and invalidate, no need to add
144 CACHE_BASE address */
145 for (i = 0; i < cpuinfo.icache_size;
146 i += cpuinfo.icache_line)
147 __invalidate_icache(i);
148
149 __enable_icache();
150 local_irq_restore(flags);
151 }
152}
153
154void __invalidate_icache_range(unsigned long start, unsigned long end)
155{
156 unsigned int i;
157 unsigned flags;
158 unsigned int align;
159
160 if (cpuinfo.use_icache) {
161 /*
162 * No need to cover entire cache range,
163 * just cover cache footprint
164 */
165 end = min(start + cpuinfo.icache_size, end);
166 align = ~(cpuinfo.icache_line - 1);
167 start &= align; /* Make sure we are aligned */
168 /* Push end up to the next cache line */
169 end = ((end & align) + cpuinfo.icache_line);
170
171 local_irq_save(flags);
172 __disable_icache();
173
174 for (i = start; i < end; i += cpuinfo.icache_line)
175 __invalidate_icache(i);
176
177 __enable_icache();
178 local_irq_restore(flags);
179 }
180}
181
182void __invalidate_icache_page(struct vm_area_struct *vma, struct page *page)
183{
184 __invalidate_icache_all();
185}
186
187void __invalidate_icache_user_range(struct vm_area_struct *vma,
188 struct page *page, unsigned long adr,
189 int len)
190{
191 __invalidate_icache_all();
192}
193
194void __invalidate_cache_sigtramp(unsigned long addr)
195{
196 __invalidate_icache_range(addr, addr + 8);
197}
198
199void __invalidate_dcache_all(void)
200{
201 unsigned int i;
202 unsigned flags;
203
204 if (cpuinfo.use_dcache) {
205 local_irq_save(flags);
206 __disable_dcache();
207
208 /*
209 * Just loop through cache size and invalidate,
210 * no need to add CACHE_BASE address
211 */
212 for (i = 0; i < cpuinfo.dcache_size;
213 i += cpuinfo.dcache_line)
214 __invalidate_dcache(i);
215
216 __enable_dcache();
217 local_irq_restore(flags);
218 }
219}
220
221void __invalidate_dcache_range(unsigned long start, unsigned long end)
222{
223 unsigned int i;
224 unsigned flags;
225 unsigned int align;
226
227 if (cpuinfo.use_dcache) {
228 /*
229 * No need to cover entire cache range,
230 * just cover cache footprint
231 */
232 end = min(start + cpuinfo.dcache_size, end);
233 align = ~(cpuinfo.dcache_line - 1);
234 start &= align; /* Make sure we are aligned */
235 /* Push end up to the next cache line */
236 end = ((end & align) + cpuinfo.dcache_line);
237 local_irq_save(flags);
238 __disable_dcache();
239
240 for (i = start; i < end; i += cpuinfo.dcache_line)
241 __invalidate_dcache(i);
242
243 __enable_dcache();
244 local_irq_restore(flags);
245 }
246}
247
248void __invalidate_dcache_page(struct vm_area_struct *vma, struct page *page)
249{
250 __invalidate_dcache_all();
251}
252
253void __invalidate_dcache_user_range(struct vm_area_struct *vma,
254 struct page *page, unsigned long adr,
255 int len)
256{
257 __invalidate_dcache_all();
258}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
new file mode 100644
index 000000000000..cf7424a6bb87
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c
@@ -0,0 +1,101 @@
1/*
2 * Support for MicroBlaze PVR (processor version register)
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007-2009 PetaLogix
6 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12
13#include <linux/init.h>
14#include <linux/string.h>
15#include <asm/pvr.h>
16#include <asm/cpuinfo.h>
17
18/*
19 * Helper macro to map between fields in our struct cpuinfo, and
20 * the PVR macros in pvr.h.
21 */
22
23#define CI(c, p) { ci->c = PVR_##p(pvr); }
24#define err_printk(x) \
25 early_printk("ERROR: Microblaze " x " - different for PVR and DTS\n");
26
27void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu)
28{
29 struct pvr_s pvr;
30 int temp; /* for saving temp value */
31 get_pvr(&pvr);
32
33 temp = PVR_USE_BARREL(pvr) | PVR_USE_MSR_INSTR(pvr) |\
34 PVR_USE_PCMP_INSTR(pvr) | PVR_USE_DIV(pvr);
35 if (ci->use_instr != temp)
36 err_printk("BARREL, MSR, PCMP or DIV");
37 ci->use_instr = temp;
38
39 temp = PVR_USE_HW_MUL(pvr) | PVR_USE_MUL64(pvr);
40 if (ci->use_mult != temp)
41 err_printk("HW_MUL");
42 ci->use_mult = temp;
43
44 temp = PVR_USE_FPU(pvr) | PVR_USE_FPU2(pvr);
45 if (ci->use_fpu != temp)
46 err_printk("HW_FPU");
47 ci->use_fpu = temp;
48
49 ci->use_exc = PVR_OPCODE_0x0_ILLEGAL(pvr) |\
50 PVR_UNALIGNED_EXCEPTION(pvr) |\
51 PVR_ILL_OPCODE_EXCEPTION(pvr) |\
52 PVR_IOPB_BUS_EXCEPTION(pvr) |\
53 PVR_DOPB_BUS_EXCEPTION(pvr) |\
54 PVR_DIV_ZERO_EXCEPTION(pvr) |\
55 PVR_FPU_EXCEPTION(pvr) |\
56 PVR_FSL_EXCEPTION(pvr);
57
58 CI(pvr_user1, USER1);
59 CI(pvr_user2, USER2);
60
61 CI(mmu, USE_MMU);
62
63 CI(ver_code, VERSION);
64
65 CI(use_icache, USE_ICACHE);
66 CI(icache_tagbits, ICACHE_ADDR_TAG_BITS);
67 CI(icache_write, ICACHE_ALLOW_WR);
68 CI(icache_line, ICACHE_LINE_LEN);
69 CI(icache_size, ICACHE_BYTE_SIZE);
70 CI(icache_base, ICACHE_BASEADDR);
71 CI(icache_high, ICACHE_HIGHADDR);
72
73 CI(use_dcache, USE_DCACHE);
74 CI(dcache_tagbits, DCACHE_ADDR_TAG_BITS);
75 CI(dcache_write, DCACHE_ALLOW_WR);
76 CI(dcache_line, DCACHE_LINE_LEN);
77 CI(dcache_size, DCACHE_BYTE_SIZE);
78 CI(dcache_base, DCACHE_BASEADDR);
79 CI(dcache_high, DCACHE_HIGHADDR);
80
81 CI(use_dopb, D_OPB);
82 CI(use_iopb, I_OPB);
83 CI(use_dlmb, D_LMB);
84 CI(use_ilmb, I_LMB);
85 CI(num_fsl, FSL_LINKS);
86
87 CI(irq_edge, INTERRUPT_IS_EDGE);
88 CI(irq_positive, EDGE_IS_POSITIVE);
89
90 CI(area_optimised, AREA_OPTIMISED);
91
92 CI(hw_debug, DEBUG_ENABLED);
93 CI(num_pc_brk, NUMBER_OF_PC_BRK);
94 CI(num_rd_brk, NUMBER_OF_RD_ADDR_BRK);
95 CI(num_wr_brk, NUMBER_OF_WR_ADDR_BRK);
96
97 CI(fpga_family_code, TARGET_FAMILY);
98
99 /* take timebase-frequency from DTS */
100 ci->cpu_clock_freq = fcpu(cpu, "timebase-frequency");
101}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-static.c b/arch/microblaze/kernel/cpu/cpuinfo-static.c
new file mode 100644
index 000000000000..cfe44effdb77
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo-static.c
@@ -0,0 +1,144 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/string.h>
14#include <asm/cpuinfo.h>
15#include <asm/pvr.h>
16
17const static char family_string[] = CONFIG_XILINX_MICROBLAZE0_FAMILY;
18const static char cpu_ver_string[] = CONFIG_XILINX_MICROBLAZE0_HW_VER;
19
20#define err_printk(x) \
21 early_printk("ERROR: Microblaze " x "- different for kernel and DTS\n");
22
23void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
24{
25 int i = 0;
26
27 ci->use_instr =
28 (fcpu(cpu, "xlnx,use-barrel") ? PVR0_USE_BARREL_MASK : 0) |
29 (fcpu(cpu, "xlnx,use-msr-instr") ? PVR2_USE_MSR_INSTR : 0) |
30 (fcpu(cpu, "xlnx,use-pcmp-instr") ? PVR2_USE_PCMP_INSTR : 0) |
31 (fcpu(cpu, "xlnx,use-div") ? PVR0_USE_DIV_MASK : 0);
32 if (CONFIG_XILINX_MICROBLAZE0_USE_BARREL)
33 i |= PVR0_USE_BARREL_MASK;
34 if (CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR)
35 i |= PVR2_USE_MSR_INSTR;
36 if (CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR)
37 i |= PVR2_USE_PCMP_INSTR;
38 if (CONFIG_XILINX_MICROBLAZE0_USE_DIV)
39 i |= PVR0_USE_DIV_MASK;
40 if (ci->use_instr != i)
41 err_printk("BARREL, MSR, PCMP or DIV");
42
43 ci->use_mult = fcpu(cpu, "xlnx,use-hw-mul");
44 if (ci->use_mult != CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)
45 err_printk("HW_MUL");
46 ci->use_mult =
47 (ci->use_mult > 1 ?
48 (PVR2_USE_MUL64_MASK | PVR0_USE_HW_MUL_MASK) :
49 (ci->use_mult == 1 ? PVR0_USE_HW_MUL_MASK : 0));
50
51 ci->use_fpu = fcpu(cpu, "xlnx,use-fpu");
52 if (ci->use_fpu != CONFIG_XILINX_MICROBLAZE0_USE_FPU)
53 err_printk("HW_FPU");
54 ci->use_fpu = (ci->use_fpu > 1 ?
55 (PVR2_USE_FPU2_MASK | PVR0_USE_FPU_MASK) :
56 (ci->use_fpu == 1 ? PVR0_USE_FPU_MASK : 0));
57
58 ci->use_exc =
59 (fcpu(cpu, "xlnx,unaligned-exceptions") ?
60 PVR2_UNALIGNED_EXC_MASK : 0) |
61 (fcpu(cpu, "xlnx,ill-opcode-exception") ?
62 PVR2_ILL_OPCODE_EXC_MASK : 0) |
63 (fcpu(cpu, "xlnx,iopb-bus-exception") ?
64 PVR2_IOPB_BUS_EXC_MASK : 0) |
65 (fcpu(cpu, "xlnx,dopb-bus-exception") ?
66 PVR2_DOPB_BUS_EXC_MASK : 0) |
67 (fcpu(cpu, "xlnx,div-zero-exception") ?
68 PVR2_DIV_ZERO_EXC_MASK : 0) |
69 (fcpu(cpu, "xlnx,fpu-exception") ? PVR2_FPU_EXC_MASK : 0) |
70 (fcpu(cpu, "xlnx,fsl-exception") ? PVR2_USE_EXTEND_FSL : 0);
71
72 ci->use_icache = fcpu(cpu, "xlnx,use-icache");
73 ci->icache_tagbits = fcpu(cpu, "xlnx,addr-tag-bits");
74 ci->icache_write = fcpu(cpu, "xlnx,allow-icache-wr");
75 ci->icache_line = fcpu(cpu, "xlnx,icache-line-len") << 2;
76 if (!ci->icache_line) {
77 if (fcpu(cpu, "xlnx,icache-use-fsl"))
78 ci->icache_line = 4 << 2;
79 else
80 ci->icache_line = 1 << 2;
81 }
82 ci->icache_size = fcpu(cpu, "i-cache-size");
83 ci->icache_base = fcpu(cpu, "i-cache-baseaddr");
84 ci->icache_high = fcpu(cpu, "i-cache-highaddr");
85
86 ci->use_dcache = fcpu(cpu, "xlnx,use-dcache");
87 ci->dcache_tagbits = fcpu(cpu, "xlnx,dcache-addr-tag");
88 ci->dcache_write = fcpu(cpu, "xlnx,allow-dcache-wr");
89 ci->dcache_line = fcpu(cpu, "xlnx,dcache-line-len") << 2;
90 if (!ci->dcache_line) {
91 if (fcpu(cpu, "xlnx,dcache-use-fsl"))
92 ci->dcache_line = 4 << 2;
93 else
94 ci->dcache_line = 1 << 2;
95 }
96 ci->dcache_size = fcpu(cpu, "d-cache-size");
97 ci->dcache_base = fcpu(cpu, "d-cache-baseaddr");
98 ci->dcache_high = fcpu(cpu, "d-cache-highaddr");
99
100 ci->use_dopb = fcpu(cpu, "xlnx,d-opb");
101 ci->use_iopb = fcpu(cpu, "xlnx,i-opb");
102 ci->use_dlmb = fcpu(cpu, "xlnx,d-lmb");
103 ci->use_ilmb = fcpu(cpu, "xlnx,i-lmb");
104
105 ci->num_fsl = fcpu(cpu, "xlnx,fsl-links");
106 ci->irq_edge = fcpu(cpu, "xlnx,interrupt-is-edge");
107 ci->irq_positive = fcpu(cpu, "xlnx,edge-is-positive");
108 ci->area_optimised = 0;
109
110 ci->hw_debug = fcpu(cpu, "xlnx,debug-enabled");
111 ci->num_pc_brk = fcpu(cpu, "xlnx,number-of-pc-brk");
112 ci->num_rd_brk = fcpu(cpu, "xlnx,number-of-rd-addr-brk");
113 ci->num_wr_brk = fcpu(cpu, "xlnx,number-of-wr-addr-brk");
114
115 ci->cpu_clock_freq = fcpu(cpu, "timebase-frequency");
116
117 ci->pvr_user1 = fcpu(cpu, "xlnx,pvr-user1");
118 ci->pvr_user2 = fcpu(cpu, "xlnx,pvr-user2");
119
120 ci->mmu = fcpu(cpu, "xlnx,use-mmu");
121
122 ci->ver_code = 0;
123 ci->fpga_family_code = 0;
124
125 /* Do various fixups based on CPU version and FPGA family strings */
126
127 /* Resolved the CPU version code */
128 for (i = 0; cpu_ver_lookup[i].s != NULL; i++) {
129 if (strcmp(cpu_ver_lookup[i].s, cpu_ver_string) == 0)
130 ci->ver_code = cpu_ver_lookup[i].k;
131 }
132
133 /* Resolved the fpga family code */
134 for (i = 0; family_string_lookup[i].s != NULL; i++) {
135 if (strcmp(family_string_lookup[i].s, family_string) == 0)
136 ci->fpga_family_code = family_string_lookup[i].k;
137 }
138
139 /* FIXME - mb3 and spartan2 do not exist in PVR */
140 /* This is mb3 and on a non Spartan2 */
141 if (ci->ver_code == 0x20 && ci->fpga_family_code != 0xf0)
142 /* Hardware Multiplier in use */
143 ci->use_mult = 1;
144}
diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c
new file mode 100644
index 000000000000..4a740dfcf6da
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/cpuinfo.c
@@ -0,0 +1,86 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/init.h>
12#include <linux/slab.h>
13#include <asm/cpuinfo.h>
14#include <asm/pvr.h>
15
16const struct cpu_ver_key cpu_ver_lookup[] = {
17 /* These key value are as per MBV field in PVR0 */
18 {"5.00.a", 0x01},
19 {"5.00.b", 0x02},
20 {"5.00.c", 0x03},
21 {"6.00.a", 0x04},
22 {"6.00.b", 0x06},
23 {"7.00.a", 0x05},
24 {"7.00.b", 0x07},
25 {"7.10.a", 0x08},
26 {"7.10.b", 0x09},
27 {"7.10.c", 0x0a},
28 {"7.10.d", 0x0b},
29 /* FIXME There is no keycode defined in MBV for these versions */
30 {"2.10.a", 0x10},
31 {"3.00.a", 0x20},
32 {"4.00.a", 0x30},
33 {"4.00.b", 0x40},
34 {NULL, 0},
35};
36
37/*
38 * FIXME Not sure if the actual key is defined by Xilinx in the PVR
39 */
40const struct family_string_key family_string_lookup[] = {
41 {"virtex2", 0x4},
42 {"virtex2pro", 0x5},
43 {"spartan3", 0x6},
44 {"virtex4", 0x7},
45 {"virtex5", 0x8},
46 {"spartan3e", 0x9},
47 {"spartan3a", 0xa},
48 {"spartan3an", 0xb},
49 {"spartan3adsp", 0xc},
50 /* FIXME There is no key code defined for spartan2 */
51 {"spartan2", 0xf0},
52 {NULL, 0},
53};
54
55struct cpuinfo cpuinfo;
56
57void __init setup_cpuinfo(void)
58{
59 struct device_node *cpu = NULL;
60
61 cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu");
62 if (!cpu)
63 printk(KERN_ERR "You don't have cpu!!!\n");
64
65 printk(KERN_INFO "%s: initialising\n", __func__);
66
67 switch (cpu_has_pvr()) {
68 case 0:
69 printk(KERN_WARNING
70 "%s: No PVR support. Using static CPU info from FDT\n",
71 __func__);
72 set_cpuinfo_static(&cpuinfo, cpu);
73 break;
74/* FIXME I found weird behavior with MB 7.00.a/b
75 * please do not use FULL PVR with MMU */
76 case 1:
77 printk(KERN_INFO "%s: Using full CPU PVR support\n",
78 __func__);
79 set_cpuinfo_static(&cpuinfo, cpu);
80 set_cpuinfo_pvr_full(&cpuinfo, cpu);
81 break;
82 default:
83 printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__);
84 set_cpuinfo_static(&cpuinfo, cpu);
85 }
86}
diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c
new file mode 100644
index 000000000000..3b6212bdc8dc
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/mb.c
@@ -0,0 +1,148 @@
1/*
2 * CPU-version specific code
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2006-2009 PetaLogix
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11
12#include <linux/init.h>
13#include <linux/string.h>
14#include <linux/seq_file.h>
15#include <linux/cpu.h>
16#include <linux/initrd.h>
17
18#include <linux/bug.h>
19#include <asm/cpuinfo.h>
20#include <linux/delay.h>
21#include <linux/io.h>
22#include <asm/page.h>
23#include <linux/param.h>
24#include <asm/pvr.h>
25#include <asm/sections.h>
26#include <asm/setup.h>
27
28static int show_cpuinfo(struct seq_file *m, void *v)
29{
30 int count = 0;
31 char *fpga_family = "Unknown";
32 char *cpu_ver = "Unknown";
33 int i;
34
35 /* Denormalised to get the fpga family string */
36 for (i = 0; family_string_lookup[i].s != NULL; i++) {
37 if (cpuinfo.fpga_family_code == family_string_lookup[i].k) {
38 fpga_family = (char *)family_string_lookup[i].s;
39 break;
40 }
41 }
42
43 /* Denormalised to get the hw version string */
44 for (i = 0; cpu_ver_lookup[i].s != NULL; i++) {
45 if (cpuinfo.ver_code == cpu_ver_lookup[i].k) {
46 cpu_ver = (char *)cpu_ver_lookup[i].s;
47 break;
48 }
49 }
50
51 count = seq_printf(m,
52 "CPU-Family: MicroBlaze\n"
53 "FPGA-Arch: %s\n"
54 "CPU-Ver: %s\n"
55 "CPU-MHz: %d.%02d\n"
56 "BogoMips: %lu.%02lu\n",
57 fpga_family,
58 cpu_ver,
59 cpuinfo.cpu_clock_freq /
60 1000000,
61 cpuinfo.cpu_clock_freq %
62 1000000,
63 loops_per_jiffy / (500000 / HZ),
64 (loops_per_jiffy / (5000 / HZ)) % 100);
65
66 count += seq_printf(m,
67 "HW:\n Shift:\t\t%s\n"
68 " MSR:\t\t%s\n"
69 " PCMP:\t\t%s\n"
70 " DIV:\t\t%s\n",
71 (cpuinfo.use_instr & PVR0_USE_BARREL_MASK) ? "yes" : "no",
72 (cpuinfo.use_instr & PVR2_USE_MSR_INSTR) ? "yes" : "no",
73 (cpuinfo.use_instr & PVR2_USE_PCMP_INSTR) ? "yes" : "no",
74 (cpuinfo.use_instr & PVR0_USE_DIV_MASK) ? "yes" : "no");
75
76 count += seq_printf(m,
77 " MMU:\t\t%x\n",
78 cpuinfo.mmu);
79
80 count += seq_printf(m,
81 " MUL:\t\t%s\n"
82 " FPU:\t\t%s\n",
83 (cpuinfo.use_mult & PVR2_USE_MUL64_MASK) ? "v2" :
84 (cpuinfo.use_mult & PVR0_USE_HW_MUL_MASK) ? "v1" : "no",
85 (cpuinfo.use_fpu & PVR2_USE_FPU2_MASK) ? "v2" :
86 (cpuinfo.use_fpu & PVR0_USE_FPU_MASK) ? "v1" : "no");
87
88 count += seq_printf(m,
89 " Exc:\t\t%s%s%s%s%s%s%s%s\n",
90 (cpuinfo.use_exc & PVR2_OPCODE_0x0_ILL_MASK) ? "op0x0 " : "",
91 (cpuinfo.use_exc & PVR2_UNALIGNED_EXC_MASK) ? "unal " : "",
92 (cpuinfo.use_exc & PVR2_ILL_OPCODE_EXC_MASK) ? "ill " : "",
93 (cpuinfo.use_exc & PVR2_IOPB_BUS_EXC_MASK) ? "iopb " : "",
94 (cpuinfo.use_exc & PVR2_DOPB_BUS_EXC_MASK) ? "dopb " : "",
95 (cpuinfo.use_exc & PVR2_DIV_ZERO_EXC_MASK) ? "zero " : "",
96 (cpuinfo.use_exc & PVR2_FPU_EXC_MASK) ? "fpu " : "",
97 (cpuinfo.use_exc & PVR2_USE_FSL_EXC) ? "fsl " : "");
98
99 if (cpuinfo.use_icache)
100 count += seq_printf(m,
101 "Icache:\t\t%ukB\n",
102 cpuinfo.icache_size >> 10);
103 else
104 count += seq_printf(m, "Icache:\t\tno\n");
105
106 if (cpuinfo.use_dcache)
107 count += seq_printf(m,
108 "Dcache:\t\t%ukB\n",
109 cpuinfo.dcache_size >> 10);
110 else
111 count += seq_printf(m, "Dcache:\t\tno\n");
112
113 count += seq_printf(m,
114 "HW-Debug:\t%s\n",
115 cpuinfo.hw_debug ? "yes" : "no");
116
117 count += seq_printf(m,
118 "PVR-USR1:\t%x\n"
119 "PVR-USR2:\t%x\n",
120 cpuinfo.pvr_user1,
121 cpuinfo.pvr_user2);
122
123 return 0;
124}
125
126static void *c_start(struct seq_file *m, loff_t *pos)
127{
128 int i = *pos;
129
130 return i < NR_CPUS ? (void *) (i + 1) : NULL;
131}
132
133static void *c_next(struct seq_file *m, void *v, loff_t *pos)
134{
135 ++*pos;
136 return c_start(m, pos);
137}
138
139static void c_stop(struct seq_file *m, void *v)
140{
141}
142
143const struct seq_operations cpuinfo_op = {
144 .start = c_start,
145 .next = c_next,
146 .stop = c_stop,
147 .show = show_cpuinfo,
148};
diff --git a/arch/microblaze/kernel/cpu/pvr.c b/arch/microblaze/kernel/cpu/pvr.c
new file mode 100644
index 000000000000..c9a4340ddd53
--- /dev/null
+++ b/arch/microblaze/kernel/cpu/pvr.c
@@ -0,0 +1,81 @@
1/*
2 * Support for MicroBlaze PVR (processor version register)
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007-2009 PetaLogix
6 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12
13#include <linux/kernel.h>
14#include <linux/compiler.h>
15#include <asm/system.h>
16#include <asm/exceptions.h>
17#include <asm/pvr.h>
18
19/*
20 * Until we get an assembler that knows about the pvr registers,
21 * this horrible cruft will have to do.
22 * That hardcoded opcode is mfs r3, rpvrNN
23 */
24
25#define get_single_pvr(pvrid, val) \
26{ \
27 register unsigned tmp __asm__("r3"); \
28 tmp = 0x0; /* Prevent warning about unused */ \
29 __asm__ __volatile__ ( \
30 ".byte 0x94,0x60,0xa0, " #pvrid "\n\t" \
31 : "=r" (tmp) : : "memory"); \
32 val = tmp; \
33}
34
35/*
36 * Does the CPU support the PVR register?
37 * return value:
38 * 0: no PVR
39 * 1: simple PVR
40 * 2: full PVR
41 *
42 * This must work on all CPU versions, including those before the
43 * PVR was even an option.
44 */
45
46int cpu_has_pvr(void)
47{
48 unsigned flags;
49 unsigned pvr0;
50
51 local_save_flags(flags);
52
53 /* PVR bit in MSR tells us if there is any support */
54 if (!(flags & PVR_MSR_BIT))
55 return 0;
56
57 get_single_pvr(0x00, pvr0);
58 pr_debug("%s: pvr0 is 0x%08x\n", __func__, pvr0);
59
60 if (pvr0 & PVR0_PVR_FULL_MASK)
61 return 1;
62
63 /* for partial PVR use static cpuinfo */
64 return 2;
65}
66
67void get_pvr(struct pvr_s *p)
68{
69 get_single_pvr(0, p->pvr[0]);
70 get_single_pvr(1, p->pvr[1]);
71 get_single_pvr(2, p->pvr[2]);
72 get_single_pvr(3, p->pvr[3]);
73 get_single_pvr(4, p->pvr[4]);
74 get_single_pvr(5, p->pvr[5]);
75 get_single_pvr(6, p->pvr[6]);
76 get_single_pvr(7, p->pvr[7]);
77 get_single_pvr(8, p->pvr[8]);
78 get_single_pvr(9, p->pvr[9]);
79 get_single_pvr(10, p->pvr[10]);
80 get_single_pvr(11, p->pvr[11]);
81}
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
new file mode 100644
index 000000000000..62cc78993f44
--- /dev/null
+++ b/arch/microblaze/kernel/early_printk.c
@@ -0,0 +1,107 @@
1/*
2 * Early printk support for Microblaze.
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007-2009 PetaLogix
6 * Copyright (C) 2003-2006 Yasushi SHOJI <yashi@atmark-techno.com>
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
10 * for more details.
11 */
12
13#include <linux/console.h>
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/string.h>
17#include <linux/tty.h>
18#include <linux/io.h>
19#include <asm/processor.h>
20#include <linux/fcntl.h>
21#include <asm/setup.h>
22#include <asm/prom.h>
23
24static u32 early_console_initialized;
25static u32 base_addr;
26
27static void early_printk_putc(char c)
28{
29 /*
30 * Limit how many times we'll spin waiting for TX FIFO status.
31 * This will prevent lockups if the base address is incorrectly
32 * set, or any other issue on the UARTLITE.
33 * This limit is pretty arbitrary, unless we are at about 10 baud
34 * we'll never timeout on a working UART.
35 */
36
37 unsigned retries = 10000;
38 /* read status bit - 0x8 offset */
39 while (retries-- && (in_be32(base_addr + 8) & (1 << 3)))
40 ;
41
42 /* Only attempt the iowrite if we didn't timeout */
43 /* write to TX_FIFO - 0x4 offset */
44 if (retries)
45 out_be32(base_addr + 4, c & 0xff);
46}
47
48static void early_printk_write(struct console *unused,
49 const char *s, unsigned n)
50{
51 while (*s && n-- > 0) {
52 early_printk_putc(*s);
53 if (*s == '\n')
54 early_printk_putc('\r');
55 s++;
56 }
57}
58
59static struct console early_serial_console = {
60 .name = "earlyser",
61 .write = early_printk_write,
62 .flags = CON_PRINTBUFFER,
63 .index = -1,
64};
65
66static struct console *early_console = &early_serial_console;
67
68void early_printk(const char *fmt, ...)
69{
70 char buf[512];
71 int n;
72 va_list ap;
73
74 if (early_console_initialized) {
75 va_start(ap, fmt);
76 n = vscnprintf(buf, 512, fmt, ap);
77 early_console->write(early_console, buf, n);
78 va_end(ap);
79 }
80}
81
82int __init setup_early_printk(char *opt)
83{
84 if (early_console_initialized)
85 return 1;
86
87 base_addr = early_uartlite_console();
88 if (base_addr) {
89 early_console_initialized = 1;
90 early_printk("early_printk_console is enabled at 0x%08x\n",
91 base_addr);
92
93 /* register_console(early_console); */
94
95 return 0;
96 } else
97 return 1;
98}
99
100void __init disable_early_printk(void)
101{
102 if (!early_console_initialized || !early_console)
103 return;
104 printk(KERN_WARNING "disabling early console\n");
105 unregister_console(early_console);
106 early_console_initialized = 0;
107}
diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S
new file mode 100644
index 000000000000..f24b1268baaf
--- /dev/null
+++ b/arch/microblaze/kernel/entry-nommu.S
@@ -0,0 +1,596 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/linkage.h>
12#include <asm/thread_info.h>
13#include <asm/errno.h>
14#include <asm/entry.h>
15#include <asm/asm-offsets.h>
16#include <asm/registers.h>
17#include <asm/unistd.h>
18#include <asm/percpu.h>
19#include <asm/signal.h>
20
21#if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
22 .macro disable_irq
23 msrclr r0, MSR_IE
24 .endm
25
26 .macro enable_irq
27 msrset r0, MSR_IE
28 .endm
29
30 .macro clear_bip
31 msrclr r0, MSR_BIP
32 .endm
33#else
34 .macro disable_irq
35 mfs r11, rmsr
36 andi r11, r11, ~MSR_IE
37 mts rmsr, r11
38 .endm
39
40 .macro enable_irq
41 mfs r11, rmsr
42 ori r11, r11, MSR_IE
43 mts rmsr, r11
44 .endm
45
46 .macro clear_bip
47 mfs r11, rmsr
48 andi r11, r11, ~MSR_BIP
49 mts rmsr, r11
50 .endm
51#endif
52
53ENTRY(_interrupt)
54 swi r1, r0, PER_CPU(ENTRY_SP) /* save the current sp */
55 swi r11, r0, PER_CPU(R11_SAVE) /* temporarily save r11 */
56 lwi r11, r0, PER_CPU(KM) /* load mode indicator */
57 beqid r11, 1f
58 nop
59 brid 2f /* jump over */
60 addik r1, r1, (-PT_SIZE) /* room for pt_regs (delay slot) */
611: /* switch to kernel stack */
62 lwi r1, r0, PER_CPU(CURRENT_SAVE) /* get the saved current */
63 lwi r1, r1, TS_THREAD_INFO /* get the thread info */
64 /* calculate kernel stack pointer */
65 addik r1, r1, THREAD_SIZE - PT_SIZE
662:
67 swi r11, r1, PT_MODE /* store the mode */
68 lwi r11, r0, PER_CPU(R11_SAVE) /* reload r11 */
69 swi r2, r1, PT_R2
70 swi r3, r1, PT_R3
71 swi r4, r1, PT_R4
72 swi r5, r1, PT_R5
73 swi r6, r1, PT_R6
74 swi r7, r1, PT_R7
75 swi r8, r1, PT_R8
76 swi r9, r1, PT_R9
77 swi r10, r1, PT_R10
78 swi r11, r1, PT_R11
79 swi r12, r1, PT_R12
80 swi r13, r1, PT_R13
81 swi r14, r1, PT_R14
82 swi r14, r1, PT_PC
83 swi r15, r1, PT_R15
84 swi r16, r1, PT_R16
85 swi r17, r1, PT_R17
86 swi r18, r1, PT_R18
87 swi r19, r1, PT_R19
88 swi r20, r1, PT_R20
89 swi r21, r1, PT_R21
90 swi r22, r1, PT_R22
91 swi r23, r1, PT_R23
92 swi r24, r1, PT_R24
93 swi r25, r1, PT_R25
94 swi r26, r1, PT_R26
95 swi r27, r1, PT_R27
96 swi r28, r1, PT_R28
97 swi r29, r1, PT_R29
98 swi r30, r1, PT_R30
99 swi r31, r1, PT_R31
100 /* special purpose registers */
101 mfs r11, rmsr
102 swi r11, r1, PT_MSR
103 mfs r11, rear
104 swi r11, r1, PT_EAR
105 mfs r11, resr
106 swi r11, r1, PT_ESR
107 mfs r11, rfsr
108 swi r11, r1, PT_FSR
109 /* reload original stack pointer and save it */
110 lwi r11, r0, PER_CPU(ENTRY_SP)
111 swi r11, r1, PT_R1
112 /* update mode indicator we are in kernel mode */
113 addik r11, r0, 1
114 swi r11, r0, PER_CPU(KM)
115 /* restore r31 */
116 lwi r31, r0, PER_CPU(CURRENT_SAVE)
117 /* prepare the link register, the argument and jump */
118 la r15, r0, ret_from_intr - 8
119 addk r6, r0, r15
120 braid do_IRQ
121 add r5, r0, r1
122
123ret_from_intr:
124 lwi r11, r1, PT_MODE
125 bneid r11, 3f
126
127 lwi r6, r31, TS_THREAD_INFO /* get thread info */
128 lwi r19, r6, TI_FLAGS /* get flags in thread info */
129 /* do an extra work if any bits are set */
130
131 andi r11, r19, _TIF_NEED_RESCHED
132 beqi r11, 1f
133 bralid r15, schedule
134 nop
1351: andi r11, r19, _TIF_SIGPENDING
136 beqid r11, no_intr_reshed
137 addk r5, r1, r0
138 addk r7, r0, r0
139 bralid r15, do_signal
140 addk r6, r0, r0
141
142no_intr_reshed:
143 /* save mode indicator */
144 lwi r11, r1, PT_MODE
1453:
146 swi r11, r0, PER_CPU(KM)
147
148 /* save r31 */
149 swi r31, r0, PER_CPU(CURRENT_SAVE)
150restore_context:
151 /* special purpose registers */
152 lwi r11, r1, PT_FSR
153 mts rfsr, r11
154 lwi r11, r1, PT_ESR
155 mts resr, r11
156 lwi r11, r1, PT_EAR
157 mts rear, r11
158 lwi r11, r1, PT_MSR
159 mts rmsr, r11
160
161 lwi r31, r1, PT_R31
162 lwi r30, r1, PT_R30
163 lwi r29, r1, PT_R29
164 lwi r28, r1, PT_R28
165 lwi r27, r1, PT_R27
166 lwi r26, r1, PT_R26
167 lwi r25, r1, PT_R25
168 lwi r24, r1, PT_R24
169 lwi r23, r1, PT_R23
170 lwi r22, r1, PT_R22
171 lwi r21, r1, PT_R21
172 lwi r20, r1, PT_R20
173 lwi r19, r1, PT_R19
174 lwi r18, r1, PT_R18
175 lwi r17, r1, PT_R17
176 lwi r16, r1, PT_R16
177 lwi r15, r1, PT_R15
178 lwi r14, r1, PT_PC
179 lwi r13, r1, PT_R13
180 lwi r12, r1, PT_R12
181 lwi r11, r1, PT_R11
182 lwi r10, r1, PT_R10
183 lwi r9, r1, PT_R9
184 lwi r8, r1, PT_R8
185 lwi r7, r1, PT_R7
186 lwi r6, r1, PT_R6
187 lwi r5, r1, PT_R5
188 lwi r4, r1, PT_R4
189 lwi r3, r1, PT_R3
190 lwi r2, r1, PT_R2
191 lwi r1, r1, PT_R1
192 rtid r14, 0
193 nop
194
195ENTRY(_reset)
196 brai 0;
197
198ENTRY(_user_exception)
199 swi r1, r0, PER_CPU(ENTRY_SP) /* save the current sp */
200 swi r11, r0, PER_CPU(R11_SAVE) /* temporarily save r11 */
201 lwi r11, r0, PER_CPU(KM) /* load mode indicator */
202 beqid r11, 1f /* Already in kernel mode? */
203 nop
204 brid 2f /* jump over */
205 addik r1, r1, (-PT_SIZE) /* Room for pt_regs (delay slot) */
2061: /* Switch to kernel stack */
207 lwi r1, r0, PER_CPU(CURRENT_SAVE) /* get the saved current */
208 lwi r1, r1, TS_THREAD_INFO /* get the thread info */
209 /* calculate kernel stack pointer */
210 addik r1, r1, THREAD_SIZE - PT_SIZE
211 swi r11, r0, PER_CPU(R11_SAVE) /* temporarily save r11 */
212 lwi r11, r0, PER_CPU(KM) /* load mode indicator */
2132:
214 swi r11, r1, PT_MODE /* store the mode */
215 lwi r11, r0, PER_CPU(R11_SAVE) /* reload r11 */
216 /* save them on stack */
217 swi r2, r1, PT_R2
218 swi r3, r1, PT_R3 /* r3: _always_ in clobber list; see unistd.h */
219 swi r4, r1, PT_R4 /* r4: _always_ in clobber list; see unistd.h */
220 swi r5, r1, PT_R5
221 swi r6, r1, PT_R6
222 swi r7, r1, PT_R7
223 swi r8, r1, PT_R8
224 swi r9, r1, PT_R9
225 swi r10, r1, PT_R10
226 swi r11, r1, PT_R11
227 /* r12: _always_ in clobber list; see unistd.h */
228 swi r12, r1, PT_R12
229 swi r13, r1, PT_R13
230 /* r14: _always_ in clobber list; see unistd.h */
231 swi r14, r1, PT_R14
232 /* but we want to return to the next inst. */
233 addik r14, r14, 0x4
234 swi r14, r1, PT_PC /* increment by 4 and store in pc */
235 swi r15, r1, PT_R15
236 swi r16, r1, PT_R16
237 swi r17, r1, PT_R17
238 swi r18, r1, PT_R18
239 swi r19, r1, PT_R19
240 swi r20, r1, PT_R20
241 swi r21, r1, PT_R21
242 swi r22, r1, PT_R22
243 swi r23, r1, PT_R23
244 swi r24, r1, PT_R24
245 swi r25, r1, PT_R25
246 swi r26, r1, PT_R26
247 swi r27, r1, PT_R27
248 swi r28, r1, PT_R28
249 swi r29, r1, PT_R29
250 swi r30, r1, PT_R30
251 swi r31, r1, PT_R31
252
253 disable_irq
254 nop /* make sure IE bit is in effect */
255 clear_bip /* once IE is in effect it is safe to clear BIP */
256 nop
257
258 /* special purpose registers */
259 mfs r11, rmsr
260 swi r11, r1, PT_MSR
261 mfs r11, rear
262 swi r11, r1, PT_EAR
263 mfs r11, resr
264 swi r11, r1, PT_ESR
265 mfs r11, rfsr
266 swi r11, r1, PT_FSR
267 /* reload original stack pointer and save it */
268 lwi r11, r0, PER_CPU(ENTRY_SP)
269 swi r11, r1, PT_R1
270 /* update mode indicator we are in kernel mode */
271 addik r11, r0, 1
272 swi r11, r0, PER_CPU(KM)
273 /* restore r31 */
274 lwi r31, r0, PER_CPU(CURRENT_SAVE)
275 /* re-enable interrupts now we are in kernel mode */
276 enable_irq
277
278 /* See if the system call number is valid. */
279 addi r11, r12, -__NR_syscalls
280 bgei r11, 1f /* return to user if not valid */
281 /* Figure out which function to use for this system call. */
282 /* Note Microblaze barrel shift is optional, so don't rely on it */
283 add r12, r12, r12 /* convert num -> ptr */
284 add r12, r12, r12
285 lwi r12, r12, sys_call_table /* Get function pointer */
286 la r15, r0, ret_to_user-8 /* set return address */
287 bra r12 /* Make the system call. */
288 bri 0 /* won't reach here */
2891:
290 brid ret_to_user /* jump to syscall epilogue */
291 addi r3, r0, -ENOSYS /* set errno in delay slot */
292
293/*
294 * Debug traps are like a system call, but entered via brki r14, 0x60
295 * All we need to do is send the SIGTRAP signal to current, ptrace and do_signal
296 * will handle the rest
297 */
298ENTRY(_debug_exception)
299 swi r1, r0, PER_CPU(ENTRY_SP) /* save the current sp */
300 lwi r1, r0, PER_CPU(CURRENT_SAVE) /* get the saved current */
301 lwi r1, r1, TS_THREAD_INFO /* get the thread info */
302 addik r1, r1, THREAD_SIZE - PT_SIZE /* get the kernel stack */
303 swi r11, r0, PER_CPU(R11_SAVE) /* temporarily save r11 */
304 lwi r11, r0, PER_CPU(KM) /* load mode indicator */
305//save_context:
306 swi r11, r1, PT_MODE /* store the mode */
307 lwi r11, r0, PER_CPU(R11_SAVE) /* reload r11 */
308 /* save them on stack */
309 swi r2, r1, PT_R2
310 swi r3, r1, PT_R3 /* r3: _always_ in clobber list; see unistd.h */
311 swi r4, r1, PT_R4 /* r4: _always_ in clobber list; see unistd.h */
312 swi r5, r1, PT_R5
313 swi r6, r1, PT_R6
314 swi r7, r1, PT_R7
315 swi r8, r1, PT_R8
316 swi r9, r1, PT_R9
317 swi r10, r1, PT_R10
318 swi r11, r1, PT_R11
319 /* r12: _always_ in clobber list; see unistd.h */
320 swi r12, r1, PT_R12
321 swi r13, r1, PT_R13
322 /* r14: _always_ in clobber list; see unistd.h */
323 swi r14, r1, PT_R14
324 swi r14, r1, PT_PC /* Will return to interrupted instruction */
325 swi r15, r1, PT_R15
326 swi r16, r1, PT_R16
327 swi r17, r1, PT_R17
328 swi r18, r1, PT_R18
329 swi r19, r1, PT_R19
330 swi r20, r1, PT_R20
331 swi r21, r1, PT_R21
332 swi r22, r1, PT_R22
333 swi r23, r1, PT_R23
334 swi r24, r1, PT_R24
335 swi r25, r1, PT_R25
336 swi r26, r1, PT_R26
337 swi r27, r1, PT_R27
338 swi r28, r1, PT_R28
339 swi r29, r1, PT_R29
340 swi r30, r1, PT_R30
341 swi r31, r1, PT_R31
342
343 disable_irq
344 nop /* make sure IE bit is in effect */
345 clear_bip /* once IE is in effect it is safe to clear BIP */
346 nop
347
348 /* special purpose registers */
349 mfs r11, rmsr
350 swi r11, r1, PT_MSR
351 mfs r11, rear
352 swi r11, r1, PT_EAR
353 mfs r11, resr
354 swi r11, r1, PT_ESR
355 mfs r11, rfsr
356 swi r11, r1, PT_FSR
357 /* reload original stack pointer and save it */
358 lwi r11, r0, PER_CPU(ENTRY_SP)
359 swi r11, r1, PT_R1
360 /* update mode indicator we are in kernel mode */
361 addik r11, r0, 1
362 swi r11, r0, PER_CPU(KM)
363 /* restore r31 */
364 lwi r31, r0, PER_CPU(CURRENT_SAVE)
365 /* re-enable interrupts now we are in kernel mode */
366 enable_irq
367
368 addi r5, r0, SIGTRAP /* sending the trap signal */
369 add r6, r0, r31 /* to current */
370 bralid r15, send_sig
371 add r7, r0, r0 /* 3rd param zero */
372
373 /* Restore r3/r4 to work around how ret_to_user works */
374 lwi r3, r1, PT_R3
375 lwi r4, r1, PT_R4
376 bri ret_to_user
377
378ENTRY(_break)
379 bri 0
380
381/* struct task_struct *_switch_to(struct thread_info *prev,
382 struct thread_info *next); */
383ENTRY(_switch_to)
384 /* prepare return value */
385 addk r3, r0, r31
386
387 /* save registers in cpu_context */
388 /* use r11 and r12, volatile registers, as temp register */
389 addik r11, r5, TI_CPU_CONTEXT
390 swi r1, r11, CC_R1
391 swi r2, r11, CC_R2
392 /* skip volatile registers.
393 * they are saved on stack when we jumped to _switch_to() */
394 /* dedicated registers */
395 swi r13, r11, CC_R13
396 swi r14, r11, CC_R14
397 swi r15, r11, CC_R15
398 swi r16, r11, CC_R16
399 swi r17, r11, CC_R17
400 swi r18, r11, CC_R18
401 /* save non-volatile registers */
402 swi r19, r11, CC_R19
403 swi r20, r11, CC_R20
404 swi r21, r11, CC_R21
405 swi r22, r11, CC_R22
406 swi r23, r11, CC_R23
407 swi r24, r11, CC_R24
408 swi r25, r11, CC_R25
409 swi r26, r11, CC_R26
410 swi r27, r11, CC_R27
411 swi r28, r11, CC_R28
412 swi r29, r11, CC_R29
413 swi r30, r11, CC_R30
414 /* special purpose registers */
415 mfs r12, rmsr
416 swi r12, r11, CC_MSR
417 mfs r12, rear
418 swi r12, r11, CC_EAR
419 mfs r12, resr
420 swi r12, r11, CC_ESR
421 mfs r12, rfsr
422 swi r12, r11, CC_FSR
423
424 /* update r31, the current */
425 lwi r31, r6, TI_TASK
426 swi r31, r0, PER_CPU(CURRENT_SAVE)
427
428 /* get new process' cpu context and restore */
429 addik r11, r6, TI_CPU_CONTEXT
430
431 /* special purpose registers */
432 lwi r12, r11, CC_FSR
433 mts rfsr, r12
434 lwi r12, r11, CC_ESR
435 mts resr, r12
436 lwi r12, r11, CC_EAR
437 mts rear, r12
438 lwi r12, r11, CC_MSR
439 mts rmsr, r12
440 /* non-volatile registers */
441 lwi r30, r11, CC_R30
442 lwi r29, r11, CC_R29
443 lwi r28, r11, CC_R28
444 lwi r27, r11, CC_R27
445 lwi r26, r11, CC_R26
446 lwi r25, r11, CC_R25
447 lwi r24, r11, CC_R24
448 lwi r23, r11, CC_R23
449 lwi r22, r11, CC_R22
450 lwi r21, r11, CC_R21
451 lwi r20, r11, CC_R20
452 lwi r19, r11, CC_R19
453 /* dedicated registers */
454 lwi r18, r11, CC_R18
455 lwi r17, r11, CC_R17
456 lwi r16, r11, CC_R16
457 lwi r15, r11, CC_R15
458 lwi r14, r11, CC_R14
459 lwi r13, r11, CC_R13
460 /* skip volatile registers */
461 lwi r2, r11, CC_R2
462 lwi r1, r11, CC_R1
463
464 rtsd r15, 8
465 nop
466
467ENTRY(ret_from_fork)
468 addk r5, r0, r3
469 addk r6, r0, r1
470 brlid r15, schedule_tail
471 nop
472 swi r31, r1, PT_R31 /* save r31 in user context. */
473 /* will soon be restored to r31 in ret_to_user */
474 addk r3, r0, r0
475 brid ret_to_user
476 nop
477
478work_pending:
479 andi r11, r19, _TIF_NEED_RESCHED
480 beqi r11, 1f
481 bralid r15, schedule
482 nop
4831: andi r11, r19, _TIF_SIGPENDING
484 beqi r11, no_work_pending
485 addk r5, r1, r0
486 addik r7, r0, 1
487 bralid r15, do_signal
488 addk r6, r0, r0
489 bri no_work_pending
490
491ENTRY(ret_to_user)
492 disable_irq
493
494 swi r4, r1, PT_R4 /* return val */
495 swi r3, r1, PT_R3 /* return val */
496
497 lwi r6, r31, TS_THREAD_INFO /* get thread info */
498 lwi r19, r6, TI_FLAGS /* get flags in thread info */
499 bnei r19, work_pending /* do an extra work if any bits are set */
500no_work_pending:
501 disable_irq
502
503 /* save r31 */
504 swi r31, r0, PER_CPU(CURRENT_SAVE)
505 /* save mode indicator */
506 lwi r18, r1, PT_MODE
507 swi r18, r0, PER_CPU(KM)
508//restore_context:
509 /* special purpose registers */
510 lwi r18, r1, PT_FSR
511 mts rfsr, r18
512 lwi r18, r1, PT_ESR
513 mts resr, r18
514 lwi r18, r1, PT_EAR
515 mts rear, r18
516 lwi r18, r1, PT_MSR
517 mts rmsr, r18
518
519 lwi r31, r1, PT_R31
520 lwi r30, r1, PT_R30
521 lwi r29, r1, PT_R29
522 lwi r28, r1, PT_R28
523 lwi r27, r1, PT_R27
524 lwi r26, r1, PT_R26
525 lwi r25, r1, PT_R25
526 lwi r24, r1, PT_R24
527 lwi r23, r1, PT_R23
528 lwi r22, r1, PT_R22
529 lwi r21, r1, PT_R21
530 lwi r20, r1, PT_R20
531 lwi r19, r1, PT_R19
532 lwi r18, r1, PT_R18
533 lwi r17, r1, PT_R17
534 lwi r16, r1, PT_R16
535 lwi r15, r1, PT_R15
536 lwi r14, r1, PT_PC
537 lwi r13, r1, PT_R13
538 lwi r12, r1, PT_R12
539 lwi r11, r1, PT_R11
540 lwi r10, r1, PT_R10
541 lwi r9, r1, PT_R9
542 lwi r8, r1, PT_R8
543 lwi r7, r1, PT_R7
544 lwi r6, r1, PT_R6
545 lwi r5, r1, PT_R5
546 lwi r4, r1, PT_R4 /* return val */
547 lwi r3, r1, PT_R3 /* return val */
548 lwi r2, r1, PT_R2
549 lwi r1, r1, PT_R1
550
551 rtid r14, 0
552 nop
553
554sys_vfork_wrapper:
555 brid sys_vfork
556 addk r5, r1, r0
557
558sys_clone_wrapper:
559 brid sys_clone
560 addk r7, r1, r0
561
562sys_execve_wrapper:
563 brid sys_execve
564 addk r8, r1, r0
565
566sys_sigreturn_wrapper:
567 brid sys_sigreturn
568 addk r5, r1, r0
569
570sys_rt_sigreturn_wrapper:
571 brid sys_rt_sigreturn
572 addk r5, r1, r0
573
574sys_sigsuspend_wrapper:
575 brid sys_rt_sigsuspend
576 addk r6, r1, r0
577
578sys_rt_sigsuspend_wrapper:
579 brid sys_rt_sigsuspend
580 addk r7, r1, r0
581
582 /* Interrupt vector table */
583 .section .init.ivt, "ax"
584 .org 0x0
585 brai _reset
586 brai _user_exception
587 brai _interrupt
588 brai _break
589 brai _hw_exception_handler
590 .org 0x60
591 brai _debug_exception
592
593.section .rodata,"a"
594#include "syscall_table.S"
595
596syscall_table_size=(.-sys_call_table)
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c
new file mode 100644
index 000000000000..4a8a4064c7ee
--- /dev/null
+++ b/arch/microblaze/kernel/exceptions.c
@@ -0,0 +1,124 @@
1/*
2 * HW exception handling
3 *
4 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2008 PetaLogix
6 *
7 * This file is subject to the terms and conditions of the GNU General
8 * Public License. See the file COPYING in the main directory of this
9 * archive for more details.
10 */
11
12/*
13 * This file handles the architecture-dependent parts of hardware exceptions
14 */
15
16#include <linux/kernel.h>
17#include <linux/signal.h>
18#include <linux/sched.h>
19#include <linux/kallsyms.h>
20#include <linux/module.h>
21
22#include <asm/exceptions.h>
23#include <asm/entry.h> /* For KM CPU var */
24#include <asm/uaccess.h>
25#include <asm/errno.h>
26#include <asm/ptrace.h>
27#include <asm/current.h>
28
29#define MICROBLAZE_ILL_OPCODE_EXCEPTION 0x02
30#define MICROBLAZE_IBUS_EXCEPTION 0x03
31#define MICROBLAZE_DBUS_EXCEPTION 0x04
32#define MICROBLAZE_DIV_ZERO_EXCEPTION 0x05
33#define MICROBLAZE_FPU_EXCEPTION 0x06
34#define MICROBLAZE_PRIVILEG_EXCEPTION 0x07
35
36static DEFINE_SPINLOCK(die_lock);
37
38void die(const char *str, struct pt_regs *fp, long err)
39{
40 console_verbose();
41 spin_lock_irq(&die_lock);
42 printk(KERN_WARNING "Oops: %s, sig: %ld\n", str, err);
43 show_regs(fp);
44 spin_unlock_irq(&die_lock);
45 /* do_exit() should take care of panic'ing from an interrupt
46 * context so we don't handle it here
47 */
48 do_exit(err);
49}
50
51void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
52{
53 siginfo_t info;
54
55 if (kernel_mode(regs)) {
56 debugger(regs);
57 die("Exception in kernel mode", regs, signr);
58 }
59 info.si_signo = signr;
60 info.si_errno = 0;
61 info.si_code = code;
62 info.si_addr = (void __user *) addr;
63 force_sig_info(signr, &info, current);
64}
65
66asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
67 int fsr, int addr)
68{
69#if 0
70 printk(KERN_WARNING "Exception %02x in %s mode, FSR=%08x PC=%08x ESR=%08x\n",
71 type, user_mode(regs) ? "user" : "kernel", fsr,
72 (unsigned int) regs->pc, (unsigned int) regs->esr);
73#endif
74
75 switch (type & 0x1F) {
76 case MICROBLAZE_ILL_OPCODE_EXCEPTION:
77 _exception(SIGILL, regs, ILL_ILLOPC, addr);
78 break;
79 case MICROBLAZE_IBUS_EXCEPTION:
80 if (user_mode(regs)) {
81 printk(KERN_WARNING "Instruction bus error exception in user mode.\n");
82 _exception(SIGBUS, regs, BUS_ADRERR, addr);
83 return;
84 }
85 printk(KERN_WARNING "Instruction bus error exception in kernel mode.\n");
86 die("bus exception", regs, SIGBUS);
87 break;
88 case MICROBLAZE_DBUS_EXCEPTION:
89 if (user_mode(regs)) {
90 printk(KERN_WARNING "Data bus error exception in user mode.\n");
91 _exception(SIGBUS, regs, BUS_ADRERR, addr);
92 return;
93 }
94 printk(KERN_WARNING "Data bus error exception in kernel mode.\n");
95 die("bus exception", regs, SIGBUS);
96 break;
97 case MICROBLAZE_DIV_ZERO_EXCEPTION:
98 printk(KERN_WARNING "Divide by zero exception\n");
99 _exception(SIGILL, regs, ILL_ILLOPC, addr);
100 break;
101
102 case MICROBLAZE_FPU_EXCEPTION:
103 /* IEEE FP exception */
104 /* I removed fsr variable and use code var for storing fsr */
105 if (fsr & FSR_IO)
106 fsr = FPE_FLTINV;
107 else if (fsr & FSR_OF)
108 fsr = FPE_FLTOVF;
109 else if (fsr & FSR_UF)
110 fsr = FPE_FLTUND;
111 else if (fsr & FSR_DZ)
112 fsr = FPE_FLTDIV;
113 else if (fsr & FSR_DO)
114 fsr = FPE_FLTRES;
115 _exception(SIGFPE, regs, fsr, addr);
116 break;
117
118 default:
119 printk(KERN_WARNING "Unexpected exception %02x "
120 "PC=%08x in %s mode\n", type, (unsigned int) addr,
121 kernel_mode(regs) ? "kernel" : "user");
122 }
123 return;
124}
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
new file mode 100644
index 000000000000..319dc35fc922
--- /dev/null
+++ b/arch/microblaze/kernel/head.S
@@ -0,0 +1,56 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/linkage.h>
12#include <asm/thread_info.h>
13#include <asm/page.h>
14
15 .text
16ENTRY(_start)
17 mfs r1, rmsr
18 andi r1, r1, ~2
19 mts rmsr, r1
20
21/* save fdt to kernel location */
22/* r7 stores pointer to fdt blob */
23 beqi r7, no_fdt_arg
24 or r11, r0, r0 /* incremment */
25 ori r4, r0, TOPHYS(_fdt_start) /* save bram context */
26 ori r3, r0, (0x4000 - 4)
27_copy_fdt:
28 lw r12, r7, r11 /* r12 = r7 + r11 */
29 sw r12, r4, r11 /* addr[r4 + r11] = r12 */
30 addik r11, r11, 4 /* increment counting */
31 bgtid r3, _copy_fdt /* loop for all entries */
32 addik r3, r3, -4 /* descrement loop */
33no_fdt_arg:
34
35 /* Initialize small data anchors */
36 la r13, r0, _KERNEL_SDA_BASE_
37 la r2, r0, _KERNEL_SDA2_BASE_
38
39 /* Initialize stack pointer */
40 la r1, r0, init_thread_union + THREAD_SIZE - 4
41
42 /* Initialize r31 with current task address */
43 la r31, r0, init_task
44
45 /*
46 * Call platform dependent initialize function.
47 * Please see $(ARCH)/mach-$(SUBARCH)/setup.c for
48 * the function.
49 */
50 la r8, r0, machine_early_init
51 brald r15, r8
52 nop
53
54 la r15, r0, machine_halt
55 braid start_kernel
56 nop
diff --git a/arch/microblaze/kernel/heartbeat.c b/arch/microblaze/kernel/heartbeat.c
new file mode 100644
index 000000000000..1bdf20222b92
--- /dev/null
+++ b/arch/microblaze/kernel/heartbeat.c
@@ -0,0 +1,67 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/sched.h>
12#include <linux/io.h>
13
14#include <asm/setup.h>
15#include <asm/page.h>
16#include <asm/prom.h>
17
18static unsigned int base_addr;
19
20void heartbeat(void)
21{
22 static unsigned int cnt, period, dist;
23
24 if (base_addr) {
25 if (cnt == 0 || cnt == dist)
26 out_be32(base_addr, 1);
27 else if (cnt == 7 || cnt == dist + 7)
28 out_be32(base_addr, 0);
29
30 if (++cnt > period) {
31 cnt = 0;
32 /*
33 * The hyperbolic function below modifies the heartbeat
34 * period length in dependency of the current (5min)
35 * load. It goes through the points f(0)=126, f(1)=86,
36 * f(5)=51, f(inf)->30.
37 */
38 period = ((672 << FSHIFT) / (5 * avenrun[0] +
39 (7 << FSHIFT))) + 30;
40 dist = period / 4;
41 }
42 }
43}
44
45void setup_heartbeat(void)
46{
47 struct device_node *gpio = NULL;
48 int j;
49 char *gpio_list[] = {
50 "xlnx,xps-gpio-1.00.a",
51 "xlnx,opb-gpio-1.00.a",
52 NULL
53 };
54
55 for (j = 0; gpio_list[j] != NULL; j++) {
56 gpio = of_find_compatible_node(NULL, NULL, gpio_list[j]);
57 if (gpio)
58 break;
59 }
60
61 base_addr = *(int *) of_get_property(gpio, "reg", NULL);
62 base_addr = (unsigned long) ioremap(base_addr, PAGE_SIZE);
63 printk(KERN_NOTICE "Heartbeat GPIO at 0x%x\n", base_addr);
64
65 if (*(int *) of_get_property(gpio, "xlnx,is-bidir", NULL))
66 out_be32(base_addr + 4, 0); /* GPIO is configured as output */
67}
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
new file mode 100644
index 000000000000..cf9486d99838
--- /dev/null
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -0,0 +1,458 @@
1/*
2 * Exception handling for Microblaze
3 *
4 * Rewriten interrupt handling
5 *
6 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
7 * Copyright (C) 2008-2009 PetaLogix
8 *
9 * uClinux customisation (C) 2005 John Williams
10 *
11 * MMU code derived from arch/ppc/kernel/head_4xx.S:
12 * Copyright (C) 1995-1996 Gary Thomas <gdt@linuxppc.org>
13 * Initial PowerPC version.
14 * Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
15 * Rewritten for PReP
16 * Copyright (C) 1996 Paul Mackerras <paulus@cs.anu.edu.au>
17 * Low-level exception handers, MMU support, and rewrite.
18 * Copyright (C) 1997 Dan Malek <dmalek@jlc.net>
19 * PowerPC 8xx modifications.
20 * Copyright (C) 1998-1999 TiVo, Inc.
21 * PowerPC 403GCX modifications.
22 * Copyright (C) 1999 Grant Erickson <grant@lcse.umn.edu>
23 * PowerPC 403GCX/405GP modifications.
24 * Copyright 2000 MontaVista Software Inc.
25 * PPC405 modifications
26 * PowerPC 403GCX/405GP modifications.
27 * Author: MontaVista Software, Inc.
28 * frank_rowand@mvista.com or source@mvista.com
29 * debbie_chu@mvista.com
30 *
31 * Original code
32 * Copyright (C) 2004 Xilinx, Inc.
33 *
34 * This program is free software; you can redistribute it and/or modify it
35 * under the terms of the GNU General Public License version 2 as published
36 * by the Free Software Foundation.
37 */
38
39/*
40 * Here are the handlers which don't require enabling translation
41 * and calling other kernel code thus we can keep their design very simple
42 * and do all processing in real mode. All what they need is a valid current
43 * (that is an issue for the CONFIG_REGISTER_TASK_PTR case)
44 * This handlers use r3,r4,r5,r6 and optionally r[current] to work therefore
45 * these registers are saved/restored
46 * The handlers which require translation are in entry.S --KAA
47 *
48 * Microblaze HW Exception Handler
49 * - Non self-modifying exception handler for the following exception conditions
50 * - Unalignment
51 * - Instruction bus error
52 * - Data bus error
53 * - Illegal instruction opcode
54 * - Divide-by-zero
55 *
56 * Note we disable interrupts during exception handling, otherwise we will
57 * possibly get multiple re-entrancy if interrupt handles themselves cause
58 * exceptions. JW
59 */
60
61#include <asm/exceptions.h>
62#include <asm/unistd.h>
63#include <asm/page.h>
64
65#include <asm/entry.h>
66#include <asm/current.h>
67#include <linux/linkage.h>
68
69#include <asm/mmu.h>
70#include <asm/pgtable.h>
71#include <asm/asm-offsets.h>
72
73/* Helpful Macros */
74#define EX_HANDLER_STACK_SIZ (4*19)
75#define NUM_TO_REG(num) r ## num
76
77#define LWREG_NOP \
78 bri ex_handler_unhandled; \
79 nop;
80
81#define SWREG_NOP \
82 bri ex_handler_unhandled; \
83 nop;
84
85/* FIXME this is weird - for noMMU kernel is not possible to use brid
86 * instruction which can shorten executed time
87 */
88
89/* r3 is the source */
90#define R3_TO_LWREG_V(regnum) \
91 swi r3, r1, 4 * regnum; \
92 bri ex_handler_done;
93
94/* r3 is the source */
95#define R3_TO_LWREG(regnum) \
96 or NUM_TO_REG (regnum), r0, r3; \
97 bri ex_handler_done;
98
99/* r3 is the target */
100#define SWREG_TO_R3_V(regnum) \
101 lwi r3, r1, 4 * regnum; \
102 bri ex_sw_tail;
103
104/* r3 is the target */
105#define SWREG_TO_R3(regnum) \
106 or r3, r0, NUM_TO_REG (regnum); \
107 bri ex_sw_tail;
108
109.extern other_exception_handler /* Defined in exception.c */
110
111/*
112 * hw_exception_handler - Handler for exceptions
113 *
114 * Exception handler notes:
115 * - Handles all exceptions
116 * - Does not handle unaligned exceptions during load into r17, r1, r0.
117 * - Does not handle unaligned exceptions during store from r17 (cannot be
118 * done) and r1 (slows down common case)
119 *
120 * Relevant register structures
121 *
122 * EAR - |----|----|----|----|----|----|----|----|
123 * - < ## 32 bit faulting address ## >
124 *
125 * ESR - |----|----|----|----|----| - | - |-----|-----|
126 * - W S REG EXC
127 *
128 *
129 * STACK FRAME STRUCTURE (for NO_MMU)
130 * ---------------------------------
131 *
132 * +-------------+ + 0
133 * | MSR |
134 * +-------------+ + 4
135 * | r1 |
136 * | . |
137 * | . |
138 * | . |
139 * | . |
140 * | r18 |
141 * +-------------+ + 76
142 * | . |
143 * | . |
144 *
145 * NO_MMU kernel use the same r0_ram pointed space - look to vmlinux.lds.S
146 * which is used for storing register values - old style was, that value were
147 * stored in stack but in case of failure you lost information about register.
148 * Currently you can see register value in memory in specific place.
149 * In compare to with previous solution the speed should be the same.
150 *
151 * MMU exception handler has different handling compare to no MMU kernel.
152 * Exception handler use jump table for directing of what happen. For MMU kernel
153 * is this approach better because MMU relate exception are handled by asm code
154 * in this file. In compare to with MMU expect of unaligned exception
155 * is everything handled by C code.
156 */
157
158/*
159 * every of these handlers is entered having R3/4/5/6/11/current saved on stack
160 * and clobbered so care should be taken to restore them if someone is going to
161 * return from exception
162 */
163
164/* wrappers to restore state before coming to entry.S */
165
166.global _hw_exception_handler
167.section .text
168.align 4
169.ent _hw_exception_handler
170_hw_exception_handler:
171 addik r1, r1, -(EX_HANDLER_STACK_SIZ); /* Create stack frame */
172 swi r3, r1, PT_R3
173 swi r4, r1, PT_R4
174 swi r5, r1, PT_R5
175 swi r6, r1, PT_R6
176
177 mfs r5, rmsr;
178 nop
179 swi r5, r1, 0;
180 mfs r4, rbtr /* Save BTR before jumping to handler */
181 nop
182 mfs r3, resr
183 nop
184
185 andi r5, r3, 0x1000; /* Check ESR[DS] */
186 beqi r5, not_in_delay_slot; /* Branch if ESR[DS] not set */
187 mfs r17, rbtr; /* ESR[DS] set - return address in BTR */
188 nop
189not_in_delay_slot:
190 swi r17, r1, PT_R17
191
192 andi r5, r3, 0x1F; /* Extract ESR[EXC] */
193
194 /* Exceptions enabled here. This will allow nested exceptions */
195 mfs r6, rmsr;
196 nop
197 swi r6, r1, 0; /* RMSR_OFFSET */
198 ori r6, r6, 0x100; /* Turn ON the EE bit */
199 andi r6, r6, ~2; /* Disable interrupts */
200 mts rmsr, r6;
201 nop
202
203 xori r6, r5, 1; /* 00001 = Unaligned Exception */
204 /* Jump to unalignment exception handler */
205 beqi r6, handle_unaligned_ex;
206
207handle_other_ex: /* Handle Other exceptions here */
208 /* Save other volatiles before we make procedure calls below */
209 swi r7, r1, PT_R7
210 swi r8, r1, PT_R8
211 swi r9, r1, PT_R9
212 swi r10, r1, PT_R10
213 swi r11, r1, PT_R11
214 swi r12, r1, PT_R12
215 swi r14, r1, PT_R14
216 swi r15, r1, PT_R15
217 swi r18, r1, PT_R18
218
219 or r5, r1, r0
220 andi r6, r3, 0x1F; /* Load ESR[EC] */
221 lwi r7, r0, PER_CPU(KM) /* MS: saving current kernel mode to regs */
222 swi r7, r1, PT_MODE
223 mfs r7, rfsr
224 nop
225 addk r8, r17, r0; /* Load exception address */
226 bralid r15, full_exception; /* Branch to the handler */
227 nop;
228
229 /*
230 * Trigger execution of the signal handler by enabling
231 * interrupts and calling an invalid syscall.
232 */
233 mfs r5, rmsr;
234 nop
235 ori r5, r5, 2;
236 mts rmsr, r5; /* enable interrupt */
237 nop
238 addi r12, r0, __NR_syscalls;
239 brki r14, 0x08;
240 mfs r5, rmsr; /* disable interrupt */
241 nop
242 andi r5, r5, ~2;
243 mts rmsr, r5;
244 nop
245
246 lwi r7, r1, PT_R7
247 lwi r8, r1, PT_R8
248 lwi r9, r1, PT_R9
249 lwi r10, r1, PT_R10
250 lwi r11, r1, PT_R11
251 lwi r12, r1, PT_R12
252 lwi r14, r1, PT_R14
253 lwi r15, r1, PT_R15
254 lwi r18, r1, PT_R18
255
256 bri ex_handler_done; /* Complete exception handling */
257
258/* 0x01 - Unaligned data access exception
259 * This occurs when a word access is not aligned on a word boundary,
260 * or when a 16-bit access is not aligned on a 16-bit boundary.
261 * This handler perform the access, and returns, except for MMU when
262 * the unaligned address is last on a 4k page or the physical address is
263 * not found in the page table, in which case unaligned_data_trap is called.
264 */
265handle_unaligned_ex:
266 /* Working registers already saved: R3, R4, R5, R6
267 * R3 = ESR
268 * R4 = BTR
269 */
270 mfs r4, rear;
271 nop
272
273 andi r6, r3, 0x3E0; /* Mask and extract the register operand */
274 srl r6, r6; /* r6 >> 5 */
275 srl r6, r6;
276 srl r6, r6;
277 srl r6, r6;
278 srl r6, r6;
279 /* Store the register operand in a temporary location */
280 sbi r6, r0, TOPHYS(ex_reg_op);
281
282 andi r6, r3, 0x400; /* Extract ESR[S] */
283 bnei r6, ex_sw;
284ex_lw:
285 andi r6, r3, 0x800; /* Extract ESR[W] */
286 beqi r6, ex_lhw;
287 lbui r5, r4, 0; /* Exception address in r4 */
288 /* Load a word, byte-by-byte from destination address
289 and save it in tmp space */
290 sbi r5, r0, TOPHYS(ex_tmp_data_loc_0);
291 lbui r5, r4, 1;
292 sbi r5, r0, TOPHYS(ex_tmp_data_loc_1);
293 lbui r5, r4, 2;
294 sbi r5, r0, TOPHYS(ex_tmp_data_loc_2);
295 lbui r5, r4, 3;
296 sbi r5, r0, TOPHYS(ex_tmp_data_loc_3);
297 /* Get the destination register value into r3 */
298 lwi r3, r0, TOPHYS(ex_tmp_data_loc_0);
299 bri ex_lw_tail;
300ex_lhw:
301 lbui r5, r4, 0; /* Exception address in r4 */
302 /* Load a half-word, byte-by-byte from destination
303 address and save it in tmp space */
304 sbi r5, r0, TOPHYS(ex_tmp_data_loc_0);
305 lbui r5, r4, 1;
306 sbi r5, r0, TOPHYS(ex_tmp_data_loc_1);
307 /* Get the destination register value into r3 */
308 lhui r3, r0, TOPHYS(ex_tmp_data_loc_0);
309ex_lw_tail:
310 /* Get the destination register number into r5 */
311 lbui r5, r0, TOPHYS(ex_reg_op);
312 /* Form load_word jump table offset (lw_table + (8 * regnum)) */
313 la r6, r0, TOPHYS(lw_table);
314 addk r5, r5, r5;
315 addk r5, r5, r5;
316 addk r5, r5, r5;
317 addk r5, r5, r6;
318 bra r5;
319ex_lw_end: /* Exception handling of load word, ends */
320ex_sw:
321 /* Get the destination register number into r5 */
322 lbui r5, r0, TOPHYS(ex_reg_op);
323 /* Form store_word jump table offset (sw_table + (8 * regnum)) */
324 la r6, r0, TOPHYS(sw_table);
325 add r5, r5, r5;
326 add r5, r5, r5;
327 add r5, r5, r5;
328 add r5, r5, r6;
329 bra r5;
330ex_sw_tail:
331 mfs r6, resr;
332 nop
333 andi r6, r6, 0x800; /* Extract ESR[W] */
334 beqi r6, ex_shw;
335 /* Get the word - delay slot */
336 swi r3, r0, TOPHYS(ex_tmp_data_loc_0);
337 /* Store the word, byte-by-byte into destination address */
338 lbui r3, r0, TOPHYS(ex_tmp_data_loc_0);
339 sbi r3, r4, 0;
340 lbui r3, r0, TOPHYS(ex_tmp_data_loc_1);
341 sbi r3, r4, 1;
342 lbui r3, r0, TOPHYS(ex_tmp_data_loc_2);
343 sbi r3, r4, 2;
344 lbui r3, r0, TOPHYS(ex_tmp_data_loc_3);
345 sbi r3, r4, 3;
346 bri ex_handler_done;
347
348ex_shw:
349 /* Store the lower half-word, byte-by-byte into destination address */
350 swi r3, r0, TOPHYS(ex_tmp_data_loc_0);
351 lbui r3, r0, TOPHYS(ex_tmp_data_loc_2);
352 sbi r3, r4, 0;
353 lbui r3, r0, TOPHYS(ex_tmp_data_loc_3);
354 sbi r3, r4, 1;
355ex_sw_end: /* Exception handling of store word, ends. */
356
357ex_handler_done:
358 lwi r5, r1, 0 /* RMSR */
359 mts rmsr, r5
360 nop
361 lwi r3, r1, PT_R3
362 lwi r4, r1, PT_R4
363 lwi r5, r1, PT_R5
364 lwi r6, r1, PT_R6
365 lwi r17, r1, PT_R17
366
367 rted r17, 0
368 addik r1, r1, (EX_HANDLER_STACK_SIZ); /* Restore stack frame */
369
370.end _hw_exception_handler
371
372ex_handler_unhandled:
373/* FIXME add handle function for unhandled exception - dump register */
374 bri 0
375
376.section .text
377.align 4
378lw_table:
379lw_r0: R3_TO_LWREG (0);
380lw_r1: LWREG_NOP;
381lw_r2: R3_TO_LWREG (2);
382lw_r3: R3_TO_LWREG_V (3);
383lw_r4: R3_TO_LWREG_V (4);
384lw_r5: R3_TO_LWREG_V (5);
385lw_r6: R3_TO_LWREG_V (6);
386lw_r7: R3_TO_LWREG (7);
387lw_r8: R3_TO_LWREG (8);
388lw_r9: R3_TO_LWREG (9);
389lw_r10: R3_TO_LWREG (10);
390lw_r11: R3_TO_LWREG (11);
391lw_r12: R3_TO_LWREG (12);
392lw_r13: R3_TO_LWREG (13);
393lw_r14: R3_TO_LWREG (14);
394lw_r15: R3_TO_LWREG (15);
395lw_r16: R3_TO_LWREG (16);
396lw_r17: LWREG_NOP;
397lw_r18: R3_TO_LWREG (18);
398lw_r19: R3_TO_LWREG (19);
399lw_r20: R3_TO_LWREG (20);
400lw_r21: R3_TO_LWREG (21);
401lw_r22: R3_TO_LWREG (22);
402lw_r23: R3_TO_LWREG (23);
403lw_r24: R3_TO_LWREG (24);
404lw_r25: R3_TO_LWREG (25);
405lw_r26: R3_TO_LWREG (26);
406lw_r27: R3_TO_LWREG (27);
407lw_r28: R3_TO_LWREG (28);
408lw_r29: R3_TO_LWREG (29);
409lw_r30: R3_TO_LWREG (30);
410lw_r31: R3_TO_LWREG (31);
411
412sw_table:
413sw_r0: SWREG_TO_R3 (0);
414sw_r1: SWREG_NOP;
415sw_r2: SWREG_TO_R3 (2);
416sw_r3: SWREG_TO_R3_V (3);
417sw_r4: SWREG_TO_R3_V (4);
418sw_r5: SWREG_TO_R3_V (5);
419sw_r6: SWREG_TO_R3_V (6);
420sw_r7: SWREG_TO_R3 (7);
421sw_r8: SWREG_TO_R3 (8);
422sw_r9: SWREG_TO_R3 (9);
423sw_r10: SWREG_TO_R3 (10);
424sw_r11: SWREG_TO_R3 (11);
425sw_r12: SWREG_TO_R3 (12);
426sw_r13: SWREG_TO_R3 (13);
427sw_r14: SWREG_TO_R3 (14);
428sw_r15: SWREG_TO_R3 (15);
429sw_r16: SWREG_TO_R3 (16);
430sw_r17: SWREG_NOP;
431sw_r18: SWREG_TO_R3 (18);
432sw_r19: SWREG_TO_R3 (19);
433sw_r20: SWREG_TO_R3 (20);
434sw_r21: SWREG_TO_R3 (21);
435sw_r22: SWREG_TO_R3 (22);
436sw_r23: SWREG_TO_R3 (23);
437sw_r24: SWREG_TO_R3 (24);
438sw_r25: SWREG_TO_R3 (25);
439sw_r26: SWREG_TO_R3 (26);
440sw_r27: SWREG_TO_R3 (27);
441sw_r28: SWREG_TO_R3 (28);
442sw_r29: SWREG_TO_R3 (29);
443sw_r30: SWREG_TO_R3 (30);
444sw_r31: SWREG_TO_R3 (31);
445
446/* Temporary data structures used in the handler */
447.section .data
448.align 4
449ex_tmp_data_loc_0:
450 .byte 0
451ex_tmp_data_loc_1:
452 .byte 0
453ex_tmp_data_loc_2:
454 .byte 0
455ex_tmp_data_loc_3:
456 .byte 0
457ex_reg_op:
458 .byte 0
diff --git a/arch/microblaze/kernel/init_task.c b/arch/microblaze/kernel/init_task.c
new file mode 100644
index 000000000000..48eb9fb255fa
--- /dev/null
+++ b/arch/microblaze/kernel/init_task.c
@@ -0,0 +1,29 @@
1/*
2 * Copyright (C) 2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/module.h>
12#include <linux/sched.h>
13#include <linux/init_task.h>
14#include <linux/fs.h>
15#include <linux/mqueue.h>
16
17#include <asm/pgtable.h>
18
19static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
20static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
21struct mm_struct init_mm = INIT_MM(init_mm);
22EXPORT_SYMBOL(init_mm);
23
24union thread_union init_thread_union
25 __attribute__((__section__(".data.init_task"))) =
26{ INIT_THREAD_INFO(init_task) };
27
28struct task_struct init_task = INIT_TASK(init_task);
29EXPORT_SYMBOL(init_task);
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
new file mode 100644
index 000000000000..a69d3e3c2fd4
--- /dev/null
+++ b/arch/microblaze/kernel/intc.c
@@ -0,0 +1,172 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/init.h>
12#include <linux/irq.h>
13#include <asm/page.h>
14#include <linux/io.h>
15
16#include <asm/prom.h>
17#include <asm/irq.h>
18
19#ifdef CONFIG_SELFMOD_INTC
20#include <asm/selfmod.h>
21#define INTC_BASE BARRIER_BASE_ADDR
22#else
23static unsigned int intc_baseaddr;
24#define INTC_BASE intc_baseaddr
25#endif
26
27unsigned int nr_irq;
28
29/* No one else should require these constants, so define them locally here. */
30#define ISR 0x00 /* Interrupt Status Register */
31#define IPR 0x04 /* Interrupt Pending Register */
32#define IER 0x08 /* Interrupt Enable Register */
33#define IAR 0x0c /* Interrupt Acknowledge Register */
34#define SIE 0x10 /* Set Interrupt Enable bits */
35#define CIE 0x14 /* Clear Interrupt Enable bits */
36#define IVR 0x18 /* Interrupt Vector Register */
37#define MER 0x1c /* Master Enable Register */
38
39#define MER_ME (1<<0)
40#define MER_HIE (1<<1)
41
42static void intc_enable_or_unmask(unsigned int irq)
43{
44 pr_debug("enable_or_unmask: %d\n", irq);
45 out_be32(INTC_BASE + SIE, 1 << irq);
46}
47
48static void intc_disable_or_mask(unsigned int irq)
49{
50 pr_debug("disable: %d\n", irq);
51 out_be32(INTC_BASE + CIE, 1 << irq);
52}
53
54static void intc_ack(unsigned int irq)
55{
56 pr_debug("ack: %d\n", irq);
57 out_be32(INTC_BASE + IAR, 1 << irq);
58}
59
60static void intc_mask_ack(unsigned int irq)
61{
62 unsigned long mask = 1 << irq;
63 pr_debug("disable_and_ack: %d\n", irq);
64 out_be32(INTC_BASE + CIE, mask);
65 out_be32(INTC_BASE + IAR, mask);
66}
67
68static void intc_end(unsigned int irq)
69{
70 unsigned long mask = 1 << irq;
71 pr_debug("end: %d\n", irq);
72 if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
73 out_be32(INTC_BASE + SIE, mask);
74 /* ack level sensitive intr */
75 if (irq_desc[irq].status & IRQ_LEVEL)
76 out_be32(INTC_BASE + IAR, mask);
77 }
78}
79
80static struct irq_chip intc_dev = {
81 .name = "Xilinx INTC",
82 .unmask = intc_enable_or_unmask,
83 .mask = intc_disable_or_mask,
84 .ack = intc_ack,
85 .mask_ack = intc_mask_ack,
86 .end = intc_end,
87};
88
89unsigned int get_irq(struct pt_regs *regs)
90{
91 int irq;
92
93 /*
94 * NOTE: This function is the one that needs to be improved in
95 * order to handle multiple interrupt controllers. It currently
96 * is hardcoded to check for interrupts only on the first INTC.
97 */
98 irq = in_be32(INTC_BASE + IVR);
99 pr_debug("get_irq: %d\n", irq);
100
101 return irq;
102}
103
104void __init init_IRQ(void)
105{
106 u32 i, j, intr_type;
107 struct device_node *intc = NULL;
108#ifdef CONFIG_SELFMOD_INTC
109 unsigned int intc_baseaddr = 0;
110 static int arr_func[] = {
111 (int)&get_irq,
112 (int)&intc_enable_or_unmask,
113 (int)&intc_disable_or_mask,
114 (int)&intc_mask_ack,
115 (int)&intc_ack,
116 (int)&intc_end,
117 0
118 };
119#endif
120 static char *intc_list[] = {
121 "xlnx,xps-intc-1.00.a",
122 "xlnx,opb-intc-1.00.c",
123 "xlnx,opb-intc-1.00.b",
124 "xlnx,opb-intc-1.00.a",
125 NULL
126 };
127
128 for (j = 0; intc_list[j] != NULL; j++) {
129 intc = of_find_compatible_node(NULL, NULL, intc_list[j]);
130 if (intc)
131 break;
132 }
133
134 intc_baseaddr = *(int *) of_get_property(intc, "reg", NULL);
135 intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE);
136 nr_irq = *(int *) of_get_property(intc, "xlnx,num-intr-inputs", NULL);
137
138 intr_type =
139 *(int *) of_get_property(intc, "xlnx,kind-of-intr", NULL);
140 if (intr_type >= (1 << nr_irq))
141 printk(KERN_INFO " ERROR: Mishmash in king-of-intr param\n");
142
143#ifdef CONFIG_SELFMOD_INTC
144 selfmod_function((int *) arr_func, intc_baseaddr);
145#endif
146 printk(KERN_INFO "%s #0 at 0x%08x, num_irq=%d, edge=0x%x\n",
147 intc_list[j], intc_baseaddr, nr_irq, intr_type);
148
149 /*
150 * Disable all external interrupts until they are
151 * explicity requested.
152 */
153 out_be32(intc_baseaddr + IER, 0);
154
155 /* Acknowledge any pending interrupts just in case. */
156 out_be32(intc_baseaddr + IAR, 0xffffffff);
157
158 /* Turn on the Master Enable. */
159 out_be32(intc_baseaddr + MER, MER_HIE | MER_ME);
160
161 for (i = 0; i < nr_irq; ++i) {
162 if (intr_type & (0x00000001 << i)) {
163 set_irq_chip_and_handler_name(i, &intc_dev,
164 handle_edge_irq, intc_dev.name);
165 irq_desc[i].status &= ~IRQ_LEVEL;
166 } else {
167 set_irq_chip_and_handler_name(i, &intc_dev,
168 handle_level_irq, intc_dev.name);
169 irq_desc[i].status |= IRQ_LEVEL;
170 }
171 }
172}
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
new file mode 100644
index 000000000000..f688ee93e3b9
--- /dev/null
+++ b/arch/microblaze/kernel/irq.c
@@ -0,0 +1,104 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/init.h>
12#include <linux/kernel.h>
13#include <linux/hardirq.h>
14#include <linux/interrupt.h>
15#include <linux/irqflags.h>
16#include <linux/seq_file.h>
17#include <linux/kernel_stat.h>
18#include <linux/irq.h>
19
20#include <asm/prom.h>
21
22unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
23{
24 struct of_irq oirq;
25
26 if (of_irq_map_one(dev, index, &oirq))
27 return NO_IRQ;
28
29 return oirq.specifier[0];
30}
31EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
32
33/*
34 * 'what should we do if we get a hw irq event on an illegal vector'.
35 * each architecture has to answer this themselves.
36 */
37void ack_bad_irq(unsigned int irq)
38{
39 printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq);
40}
41
42static u32 concurrent_irq;
43
44void do_IRQ(struct pt_regs *regs)
45{
46 unsigned int irq;
47 struct pt_regs *old_regs = set_irq_regs(regs);
48
49 irq_enter();
50 irq = get_irq(regs);
51next_irq:
52 BUG_ON(irq == -1U);
53 generic_handle_irq(irq);
54
55 irq = get_irq(regs);
56 if (irq != -1U) {
57 pr_debug("next irq: %d\n", irq);
58 ++concurrent_irq;
59 goto next_irq;
60 }
61
62 irq_exit();
63 set_irq_regs(old_regs);
64}
65
66int show_interrupts(struct seq_file *p, void *v)
67{
68 int i = *(loff_t *) v, j;
69 struct irqaction *action;
70 unsigned long flags;
71
72 if (i == 0) {
73 seq_printf(p, " ");
74 for_each_online_cpu(j)
75 seq_printf(p, "CPU%-8d", j);
76 seq_putc(p, '\n');
77 }
78
79 if (i < nr_irq) {
80 spin_lock_irqsave(&irq_desc[i].lock, flags);
81 action = irq_desc[i].action;
82 if (!action)
83 goto skip;
84 seq_printf(p, "%3d: ", i);
85#ifndef CONFIG_SMP
86 seq_printf(p, "%10u ", kstat_irqs(i));
87#else
88 for_each_online_cpu(j)
89 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
90#endif
91 seq_printf(p, " %8s", irq_desc[i].status &
92 IRQ_LEVEL ? "level" : "edge");
93 seq_printf(p, " %8s", irq_desc[i].chip->name);
94 seq_printf(p, " %s", action->name);
95
96 for (action = action->next; action; action = action->next)
97 seq_printf(p, ", %s", action->name);
98
99 seq_putc(p, '\n');
100skip:
101 spin_unlock_irqrestore(&irq_desc[i].lock, flags);
102 }
103 return 0;
104}
diff --git a/arch/microblaze/kernel/microblaze_ksyms.c b/arch/microblaze/kernel/microblaze_ksyms.c
new file mode 100644
index 000000000000..5f71790e3c3c
--- /dev/null
+++ b/arch/microblaze/kernel/microblaze_ksyms.c
@@ -0,0 +1,47 @@
1/*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10#include <linux/module.h>
11#include <linux/string.h>
12#include <linux/cryptohash.h>
13#include <linux/delay.h>
14#include <linux/in6.h>
15#include <linux/syscalls.h>
16
17#include <asm/checksum.h>
18#include <linux/io.h>
19#include <asm/page.h>
20#include <asm/system.h>
21#include <linux/uaccess.h>
22
23/*
24 * libgcc functions - functions that are used internally by the
25 * compiler... (prototypes are not correct though, but that
26 * doesn't really matter since they're not versioned).
27 */
28extern void __ashldi3(void);
29EXPORT_SYMBOL(__ashldi3);
30extern void __ashrdi3(void);
31EXPORT_SYMBOL(__ashrdi3);
32extern void __divsi3(void);
33EXPORT_SYMBOL(__divsi3);
34extern void __lshrdi3(void);
35EXPORT_SYMBOL(__lshrdi3);
36extern void __modsi3(void);
37EXPORT_SYMBOL(__modsi3);
38extern void __mulsi3(void);
39EXPORT_SYMBOL(__mulsi3);
40extern void __muldi3(void);
41EXPORT_SYMBOL(__muldi3);
42extern void __ucmpdi2(void);
43EXPORT_SYMBOL(__ucmpdi2);
44extern void __udivsi3(void);
45EXPORT_SYMBOL(__udivsi3);
46extern void __umodsi3(void);
47EXPORT_SYMBOL(__umodsi3);
diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c
new file mode 100644
index 000000000000..51414171326f
--- /dev/null
+++ b/arch/microblaze/kernel/module.c
@@ -0,0 +1,151 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10#include <linux/module.h>
11#include <linux/moduleloader.h>
12#include <linux/kernel.h>
13#include <linux/elf.h>
14#include <linux/vmalloc.h>
15#include <linux/slab.h>
16#include <linux/fs.h>
17#include <linux/string.h>
18
19#include <asm/pgtable.h>
20
21void *module_alloc(unsigned long size)
22{
23 void *ret;
24 ret = (size == 0) ? NULL : vmalloc(size);
25 pr_debug("module_alloc (%08lx@%08lx)\n", size, (unsigned long int)ret);
26 return ret;
27}
28
29void module_free(struct module *module, void *region)
30{
31 pr_debug("module_free(%s,%08lx)\n", module->name,
32 (unsigned long)region);
33 vfree(region);
34}
35
36int module_frob_arch_sections(Elf_Ehdr *hdr,
37 Elf_Shdr *sechdrs,
38 char *secstrings,
39 struct module *mod)
40{
41 return 0;
42}
43
44int apply_relocate(Elf32_Shdr *sechdrs, const char *strtab,
45 unsigned int symindex, unsigned int relsec, struct module *module)
46{
47 printk(KERN_ERR "module %s: ADD RELOCATION unsupported\n",
48 module->name);
49 return -ENOEXEC;
50}
51
52int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
53 unsigned int symindex, unsigned int relsec, struct module *module)
54{
55
56 unsigned int i;
57 Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
58 Elf32_Sym *sym;
59 unsigned long int *location;
60 unsigned long int locoffs;
61 unsigned long int value;
62#if __GNUC__ < 4
63 unsigned long int old_value;
64#endif
65
66 pr_debug("Applying add relocation section %u to %u\n",
67 relsec, sechdrs[relsec].sh_info);
68
69 for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) {
70
71 location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr +
72 rela[i].r_offset;
73 sym = (Elf32_Sym *)sechdrs[symindex].sh_addr +
74 ELF32_R_SYM(rela[i].r_info);
75 value = sym->st_value + rela[i].r_addend;
76
77 switch (ELF32_R_TYPE(rela[i].r_info)) {
78
79 /*
80 * Be careful! mb-gcc / mb-ld splits the relocs between the
81 * text and the reloc table. In general this means we must
82 * read the current contents of (*location), add any offset
83 * then store the result back in
84 */
85
86 case R_MICROBLAZE_32:
87#if __GNUC__ < 4
88 old_value = *location;
89 *location = value + old_value;
90
91 pr_debug("R_MICROBLAZE_32 (%08lx->%08lx)\n",
92 old_value, value);
93#else
94 *location = value;
95#endif
96 break;
97
98 case R_MICROBLAZE_64:
99#if __GNUC__ < 4
100 /* Split relocs only required/used pre gcc4.1.1 */
101 old_value = ((location[0] & 0x0000FFFF) << 16) |
102 (location[1] & 0x0000FFFF);
103 value += old_value;
104#endif
105 location[0] = (location[0] & 0xFFFF0000) |
106 (value >> 16);
107 location[1] = (location[1] & 0xFFFF0000) |
108 (value & 0xFFFF);
109#if __GNUC__ < 4
110 pr_debug("R_MICROBLAZE_64 (%08lx->%08lx)\n",
111 old_value, value);
112#endif
113 break;
114
115 case R_MICROBLAZE_64_PCREL:
116 locoffs = (location[0] & 0xFFFF) << 16 |
117 (location[1] & 0xFFFF);
118 value -= (unsigned long int)(location) + 4 +
119 locoffs;
120 location[0] = (location[0] & 0xFFFF0000) |
121 (value >> 16);
122 location[1] = (location[1] & 0xFFFF0000) |
123 (value & 0xFFFF);
124 pr_debug("R_MICROBLAZE_64_PCREL (%08lx)\n",
125 value);
126 break;
127
128 case R_MICROBLAZE_NONE:
129 pr_debug("R_MICROBLAZE_NONE\n");
130 break;
131
132 default:
133 printk(KERN_ERR "module %s: "
134 "Unknown relocation: %u\n",
135 module->name,
136 ELF32_R_TYPE(rela->r_info));
137 return -ENOEXEC;
138 }
139 }
140 return 0;
141}
142
143int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
144 struct module *module)
145{
146 return 0;
147}
148
149void module_arch_cleanup(struct module *mod)
150{
151}
diff --git a/arch/microblaze/kernel/of_device.c b/arch/microblaze/kernel/of_device.c
new file mode 100644
index 000000000000..717edf4ad0b4
--- /dev/null
+++ b/arch/microblaze/kernel/of_device.c
@@ -0,0 +1,115 @@
1#include <linux/string.h>
2#include <linux/kernel.h>
3#include <linux/of.h>
4#include <linux/init.h>
5#include <linux/module.h>
6#include <linux/mod_devicetable.h>
7#include <linux/slab.h>
8#include <linux/of_device.h>
9
10#include <linux/errno.h>
11
12void of_device_make_bus_id(struct of_device *dev)
13{
14 static atomic_t bus_no_reg_magic;
15 struct device_node *node = dev->node;
16 char *name = dev->dev.bus_id;
17 const u32 *reg;
18 u64 addr;
19 int magic;
20
21 /*
22 * For MMIO, get the physical address
23 */
24 reg = of_get_property(node, "reg", NULL);
25 if (reg) {
26 addr = of_translate_address(node, reg);
27 if (addr != OF_BAD_ADDR) {
28 snprintf(name, BUS_ID_SIZE,
29 "%llx.%s", (unsigned long long)addr,
30 node->name);
31 return;
32 }
33 }
34
35 /*
36 * No BusID, use the node name and add a globally incremented
37 * counter (and pray...)
38 */
39 magic = atomic_add_return(1, &bus_no_reg_magic);
40 snprintf(name, BUS_ID_SIZE, "%s.%d", node->name, magic - 1);
41}
42EXPORT_SYMBOL(of_device_make_bus_id);
43
44struct of_device *of_device_alloc(struct device_node *np,
45 const char *bus_id,
46 struct device *parent)
47{
48 struct of_device *dev;
49
50 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
51 if (!dev)
52 return NULL;
53
54 dev->node = of_node_get(np);
55 dev->dev.dma_mask = &dev->dma_mask;
56 dev->dev.parent = parent;
57 dev->dev.release = of_release_dev;
58 dev->dev.archdata.of_node = np;
59
60 if (bus_id)
61 strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
62 else
63 of_device_make_bus_id(dev);
64
65 return dev;
66}
67EXPORT_SYMBOL(of_device_alloc);
68
69int of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
70{
71 struct of_device *ofdev;
72 const char *compat;
73 int seen = 0, cplen, sl;
74
75 if (!dev)
76 return -ENODEV;
77
78 ofdev = to_of_device(dev);
79
80 if (add_uevent_var(env, "OF_NAME=%s", ofdev->node->name))
81 return -ENOMEM;
82
83 if (add_uevent_var(env, "OF_TYPE=%s", ofdev->node->type))
84 return -ENOMEM;
85
86 /* Since the compatible field can contain pretty much anything
87 * it's not really legal to split it out with commas. We split it
88 * up using a number of environment variables instead. */
89
90 compat = of_get_property(ofdev->node, "compatible", &cplen);
91 while (compat && *compat && cplen > 0) {
92 if (add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat))
93 return -ENOMEM;
94
95 sl = strlen(compat) + 1;
96 compat += sl;
97 cplen -= sl;
98 seen++;
99 }
100
101 if (add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen))
102 return -ENOMEM;
103
104 /* modalias is trickier, we add it in 2 steps */
105 if (add_uevent_var(env, "MODALIAS="))
106 return -ENOMEM;
107 sl = of_device_get_modalias(ofdev, &env->buf[env->buflen-1],
108 sizeof(env->buf) - env->buflen);
109 if (sl >= (sizeof(env->buf) - env->buflen))
110 return -ENOMEM;
111 env->buflen += sl;
112
113 return 0;
114}
115EXPORT_SYMBOL(of_device_uevent);
diff --git a/arch/microblaze/kernel/of_platform.c b/arch/microblaze/kernel/of_platform.c
new file mode 100644
index 000000000000..acf4574d0f18
--- /dev/null
+++ b/arch/microblaze/kernel/of_platform.c
@@ -0,0 +1,201 @@
1/*
2 * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
3 * <benh@kernel.crashing.org>
4 * and Arnd Bergmann, IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
13#undef DEBUG
14
15#include <linux/string.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/module.h>
19#include <linux/mod_devicetable.h>
20#include <linux/slab.h>
21#include <linux/pci.h>
22#include <linux/of.h>
23#include <linux/of_device.h>
24#include <linux/of_platform.h>
25
26#include <linux/errno.h>
27#include <linux/topology.h>
28#include <asm/atomic.h>
29
30struct bus_type of_platform_bus_type = {
31 .uevent = of_device_uevent,
32};
33EXPORT_SYMBOL(of_platform_bus_type);
34
35static int __init of_bus_driver_init(void)
36{
37 return of_bus_type_init(&of_platform_bus_type, "of_platform");
38}
39postcore_initcall(of_bus_driver_init);
40
41struct of_device *of_platform_device_create(struct device_node *np,
42 const char *bus_id,
43 struct device *parent)
44{
45 struct of_device *dev;
46
47 dev = of_device_alloc(np, bus_id, parent);
48 if (!dev)
49 return NULL;
50
51 dev->dma_mask = 0xffffffffUL;
52 dev->dev.bus = &of_platform_bus_type;
53
54 /* We do not fill the DMA ops for platform devices by default.
55 * This is currently the responsibility of the platform code
56 * to do such, possibly using a device notifier
57 */
58
59 if (of_device_register(dev) != 0) {
60 of_device_free(dev);
61 return NULL;
62 }
63
64 return dev;
65}
66EXPORT_SYMBOL(of_platform_device_create);
67
68/**
69 * of_platform_bus_create - Create an OF device for a bus node and all its
70 * children. Optionally recursively instanciate matching busses.
71 * @bus: device node of the bus to instanciate
72 * @matches: match table, NULL to use the default, OF_NO_DEEP_PROBE to
73 * disallow recursive creation of child busses
74 */
75static int of_platform_bus_create(const struct device_node *bus,
76 const struct of_device_id *matches,
77 struct device *parent)
78{
79 struct device_node *child;
80 struct of_device *dev;
81 int rc = 0;
82
83 for_each_child_of_node(bus, child) {
84 pr_debug(" create child: %s\n", child->full_name);
85 dev = of_platform_device_create(child, NULL, parent);
86 if (dev == NULL)
87 rc = -ENOMEM;
88 else if (!of_match_node(matches, child))
89 continue;
90 if (rc == 0) {
91 pr_debug(" and sub busses\n");
92 rc = of_platform_bus_create(child, matches, &dev->dev);
93 }
94 if (rc) {
95 of_node_put(child);
96 break;
97 }
98 }
99 return rc;
100}
101
102
103/**
104 * of_platform_bus_probe - Probe the device-tree for platform busses
105 * @root: parent of the first level to probe or NULL for the root of the tree
106 * @matches: match table, NULL to use the default
107 * @parent: parent to hook devices from, NULL for toplevel
108 *
109 * Note that children of the provided root are not instanciated as devices
110 * unless the specified root itself matches the bus list and is not NULL.
111 */
112
113int of_platform_bus_probe(struct device_node *root,
114 const struct of_device_id *matches,
115 struct device *parent)
116{
117 struct device_node *child;
118 struct of_device *dev;
119 int rc = 0;
120
121 if (matches == NULL)
122 matches = of_default_bus_ids;
123 if (matches == OF_NO_DEEP_PROBE)
124 return -EINVAL;
125 if (root == NULL)
126 root = of_find_node_by_path("/");
127 else
128 of_node_get(root);
129
130 pr_debug("of_platform_bus_probe()\n");
131 pr_debug(" starting at: %s\n", root->full_name);
132
133 /* Do a self check of bus type, if there's a match, create
134 * children
135 */
136 if (of_match_node(matches, root)) {
137 pr_debug(" root match, create all sub devices\n");
138 dev = of_platform_device_create(root, NULL, parent);
139 if (dev == NULL) {
140 rc = -ENOMEM;
141 goto bail;
142 }
143 pr_debug(" create all sub busses\n");
144 rc = of_platform_bus_create(root, matches, &dev->dev);
145 goto bail;
146 }
147 for_each_child_of_node(root, child) {
148 if (!of_match_node(matches, child))
149 continue;
150
151 pr_debug(" match: %s\n", child->full_name);
152 dev = of_platform_device_create(child, NULL, parent);
153 if (dev == NULL)
154 rc = -ENOMEM;
155 else
156 rc = of_platform_bus_create(child, matches, &dev->dev);
157 if (rc) {
158 of_node_put(child);
159 break;
160 }
161 }
162 bail:
163 of_node_put(root);
164 return rc;
165}
166EXPORT_SYMBOL(of_platform_bus_probe);
167
168static int of_dev_node_match(struct device *dev, void *data)
169{
170 return to_of_device(dev)->node == data;
171}
172
173struct of_device *of_find_device_by_node(struct device_node *np)
174{
175 struct device *dev;
176
177 dev = bus_find_device(&of_platform_bus_type,
178 NULL, np, of_dev_node_match);
179 if (dev)
180 return to_of_device(dev);
181 return NULL;
182}
183EXPORT_SYMBOL(of_find_device_by_node);
184
185static int of_dev_phandle_match(struct device *dev, void *data)
186{
187 phandle *ph = data;
188 return to_of_device(dev)->node->linux_phandle == *ph;
189}
190
191struct of_device *of_find_device_by_phandle(phandle ph)
192{
193 struct device *dev;
194
195 dev = bus_find_device(&of_platform_bus_type,
196 NULL, &ph, of_dev_phandle_match);
197 if (dev)
198 return to_of_device(dev);
199 return NULL;
200}
201EXPORT_SYMBOL(of_find_device_by_phandle);
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
new file mode 100644
index 000000000000..60e9ed7d3132
--- /dev/null
+++ b/arch/microblaze/kernel/process.c
@@ -0,0 +1,187 @@
1/*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/module.h>
12#include <linux/sched.h>
13#include <linux/pm.h>
14#include <linux/tick.h>
15#include <linux/bitops.h>
16#include <asm/system.h>
17#include <asm/pgalloc.h>
18
19void show_regs(struct pt_regs *regs)
20{
21 printk(KERN_INFO " Registers dump: mode=%X\r\n", regs->kernel_mode);
22 printk(KERN_INFO " r1=%08lX, r2=%08lX, r3=%08lX, r4=%08lX\n",
23 regs->r1, regs->r2, regs->r3, regs->r4);
24 printk(KERN_INFO " r5=%08lX, r6=%08lX, r7=%08lX, r8=%08lX\n",
25 regs->r5, regs->r6, regs->r7, regs->r8);
26 printk(KERN_INFO " r9=%08lX, r10=%08lX, r11=%08lX, r12=%08lX\n",
27 regs->r9, regs->r10, regs->r11, regs->r12);
28 printk(KERN_INFO " r13=%08lX, r14=%08lX, r15=%08lX, r16=%08lX\n",
29 regs->r13, regs->r14, regs->r15, regs->r16);
30 printk(KERN_INFO " r17=%08lX, r18=%08lX, r19=%08lX, r20=%08lX\n",
31 regs->r17, regs->r18, regs->r19, regs->r20);
32 printk(KERN_INFO " r21=%08lX, r22=%08lX, r23=%08lX, r24=%08lX\n",
33 regs->r21, regs->r22, regs->r23, regs->r24);
34 printk(KERN_INFO " r25=%08lX, r26=%08lX, r27=%08lX, r28=%08lX\n",
35 regs->r25, regs->r26, regs->r27, regs->r28);
36 printk(KERN_INFO " r29=%08lX, r30=%08lX, r31=%08lX, rPC=%08lX\n",
37 regs->r29, regs->r30, regs->r31, regs->pc);
38 printk(KERN_INFO " msr=%08lX, ear=%08lX, esr=%08lX, fsr=%08lX\n",
39 regs->msr, regs->ear, regs->esr, regs->fsr);
40 while (1)
41 ;
42}
43
44void (*pm_idle)(void);
45void (*pm_power_off)(void) = NULL;
46EXPORT_SYMBOL(pm_power_off);
47
48static int hlt_counter = 1;
49
50void disable_hlt(void)
51{
52 hlt_counter++;
53}
54EXPORT_SYMBOL(disable_hlt);
55
56void enable_hlt(void)
57{
58 hlt_counter--;
59}
60EXPORT_SYMBOL(enable_hlt);
61
62static int __init nohlt_setup(char *__unused)
63{
64 hlt_counter = 1;
65 return 1;
66}
67__setup("nohlt", nohlt_setup);
68
69static int __init hlt_setup(char *__unused)
70{
71 hlt_counter = 0;
72 return 1;
73}
74__setup("hlt", hlt_setup);
75
76void default_idle(void)
77{
78 if (!hlt_counter) {
79 clear_thread_flag(TIF_POLLING_NRFLAG);
80 smp_mb__after_clear_bit();
81 local_irq_disable();
82 while (!need_resched())
83 cpu_sleep();
84 local_irq_enable();
85 set_thread_flag(TIF_POLLING_NRFLAG);
86 } else
87 while (!need_resched())
88 cpu_relax();
89}
90
91void cpu_idle(void)
92{
93 set_thread_flag(TIF_POLLING_NRFLAG);
94
95 /* endless idle loop with no priority at all */
96 while (1) {
97 void (*idle)(void) = pm_idle;
98
99 if (!idle)
100 idle = default_idle;
101
102 tick_nohz_stop_sched_tick(1);
103 while (!need_resched())
104 idle();
105 tick_nohz_restart_sched_tick();
106
107 preempt_enable_no_resched();
108 schedule();
109 preempt_disable();
110 check_pgt_cache();
111 }
112}
113
114void flush_thread(void)
115{
116}
117
118/* FIXME - here will be a proposed change -> remove nr parameter */
119int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
120 unsigned long unused,
121 struct task_struct *p, struct pt_regs *regs)
122{
123 struct pt_regs *childregs = task_pt_regs(p);
124 struct thread_info *ti = task_thread_info(p);
125
126 *childregs = *regs;
127 if (user_mode(regs))
128 childregs->r1 = usp;
129 else
130 childregs->r1 = ((unsigned long) ti) + THREAD_SIZE;
131
132 memset(&ti->cpu_context, 0, sizeof(struct cpu_context));
133 ti->cpu_context.r1 = (unsigned long)childregs;
134 ti->cpu_context.msr = (unsigned long)childregs->msr;
135 ti->cpu_context.r15 = (unsigned long)ret_from_fork - 8;
136
137 if (clone_flags & CLONE_SETTLS)
138 ;
139
140 return 0;
141}
142
143/*
144 * Return saved PC of a blocked thread.
145 */
146unsigned long thread_saved_pc(struct task_struct *tsk)
147{
148 struct cpu_context *ctx =
149 &(((struct thread_info *)(tsk->stack))->cpu_context);
150
151 /* Check whether the thread is blocked in resume() */
152 if (in_sched_functions(ctx->r15))
153 return (unsigned long)ctx->r15;
154 else
155 return ctx->r14;
156}
157
158static void kernel_thread_helper(int (*fn)(void *), void *arg)
159{
160 fn(arg);
161 do_exit(-1);
162}
163
164int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
165{
166 struct pt_regs regs;
167 int ret;
168
169 memset(&regs, 0, sizeof(regs));
170 /* store them in non-volatile registers */
171 regs.r5 = (unsigned long)fn;
172 regs.r6 = (unsigned long)arg;
173 local_save_flags(regs.msr);
174 regs.pc = (unsigned long)kernel_thread_helper;
175 regs.kernel_mode = 1;
176
177 ret = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
178 &regs, 0, NULL, NULL);
179
180 return ret;
181}
182
183unsigned long get_wchan(struct task_struct *p)
184{
185/* TBD (used by procfs) */
186 return 0;
187}
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
new file mode 100644
index 000000000000..475b1fac5cfd
--- /dev/null
+++ b/arch/microblaze/kernel/prom.c
@@ -0,0 +1,1147 @@
1/*
2 * Procedures for creating, accessing and interpreting the device tree.
3 *
4 * Paul Mackerras August 1996.
5 * Copyright (C) 1996-2005 Paul Mackerras.
6 *
7 * Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
8 * {engebret|bergner}@us.ibm.com
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
14 */
15
16#include <stdarg.h>
17#include <linux/kernel.h>
18#include <linux/string.h>
19#include <linux/init.h>
20#include <linux/threads.h>
21#include <linux/spinlock.h>
22#include <linux/types.h>
23#include <linux/pci.h>
24#include <linux/stringify.h>
25#include <linux/delay.h>
26#include <linux/initrd.h>
27#include <linux/bitops.h>
28#include <linux/module.h>
29#include <linux/kexec.h>
30#include <linux/debugfs.h>
31#include <linux/irq.h>
32#include <linux/lmb.h>
33
34#include <asm/prom.h>
35#include <asm/page.h>
36#include <asm/processor.h>
37#include <asm/irq.h>
38#include <linux/io.h>
39#include <asm/system.h>
40#include <asm/mmu.h>
41#include <asm/pgtable.h>
42#include <linux/pci.h>
43#include <asm/sections.h>
44#include <asm/pci-bridge.h>
45
46static int __initdata dt_root_addr_cells;
47static int __initdata dt_root_size_cells;
48
49typedef u32 cell_t;
50
51static struct boot_param_header *initial_boot_params;
52
53/* export that to outside world */
54struct device_node *of_chosen;
55
56static inline char *find_flat_dt_string(u32 offset)
57{
58 return ((char *)initial_boot_params) +
59 initial_boot_params->off_dt_strings + offset;
60}
61
62/**
63 * This function is used to scan the flattened device-tree, it is
64 * used to extract the memory informations at boot before we can
65 * unflatten the tree
66 */
67int __init of_scan_flat_dt(int (*it)(unsigned long node,
68 const char *uname, int depth,
69 void *data),
70 void *data)
71{
72 unsigned long p = ((unsigned long)initial_boot_params) +
73 initial_boot_params->off_dt_struct;
74 int rc = 0;
75 int depth = -1;
76
77 do {
78 u32 tag = *((u32 *)p);
79 char *pathp;
80
81 p += 4;
82 if (tag == OF_DT_END_NODE) {
83 depth--;
84 continue;
85 }
86 if (tag == OF_DT_NOP)
87 continue;
88 if (tag == OF_DT_END)
89 break;
90 if (tag == OF_DT_PROP) {
91 u32 sz = *((u32 *)p);
92 p += 8;
93 if (initial_boot_params->version < 0x10)
94 p = _ALIGN(p, sz >= 8 ? 8 : 4);
95 p += sz;
96 p = _ALIGN(p, 4);
97 continue;
98 }
99 if (tag != OF_DT_BEGIN_NODE) {
100 printk(KERN_WARNING "Invalid tag %x scanning flattened"
101 " device tree !\n", tag);
102 return -EINVAL;
103 }
104 depth++;
105 pathp = (char *)p;
106 p = _ALIGN(p + strlen(pathp) + 1, 4);
107 if ((*pathp) == '/') {
108 char *lp, *np;
109 for (lp = NULL, np = pathp; *np; np++)
110 if ((*np) == '/')
111 lp = np+1;
112 if (lp != NULL)
113 pathp = lp;
114 }
115 rc = it(p, pathp, depth, data);
116 if (rc != 0)
117 break;
118 } while (1);
119
120 return rc;
121}
122
123unsigned long __init of_get_flat_dt_root(void)
124{
125 unsigned long p = ((unsigned long)initial_boot_params) +
126 initial_boot_params->off_dt_struct;
127
128 while (*((u32 *)p) == OF_DT_NOP)
129 p += 4;
130 BUG_ON(*((u32 *)p) != OF_DT_BEGIN_NODE);
131 p += 4;
132 return _ALIGN(p + strlen((char *)p) + 1, 4);
133}
134
135/**
136 * This function can be used within scan_flattened_dt callback to get
137 * access to properties
138 */
139void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
140 unsigned long *size)
141{
142 unsigned long p = node;
143
144 do {
145 u32 tag = *((u32 *)p);
146 u32 sz, noff;
147 const char *nstr;
148
149 p += 4;
150 if (tag == OF_DT_NOP)
151 continue;
152 if (tag != OF_DT_PROP)
153 return NULL;
154
155 sz = *((u32 *)p);
156 noff = *((u32 *)(p + 4));
157 p += 8;
158 if (initial_boot_params->version < 0x10)
159 p = _ALIGN(p, sz >= 8 ? 8 : 4);
160
161 nstr = find_flat_dt_string(noff);
162 if (nstr == NULL) {
163 printk(KERN_WARNING "Can't find property index"
164 " name !\n");
165 return NULL;
166 }
167 if (strcmp(name, nstr) == 0) {
168 if (size)
169 *size = sz;
170 return (void *)p;
171 }
172 p += sz;
173 p = _ALIGN(p, 4);
174 } while (1);
175}
176
177int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
178{
179 const char *cp;
180 unsigned long cplen, l;
181
182 cp = of_get_flat_dt_prop(node, "compatible", &cplen);
183 if (cp == NULL)
184 return 0;
185 while (cplen > 0) {
186 if (strncasecmp(cp, compat, strlen(compat)) == 0)
187 return 1;
188 l = strlen(cp) + 1;
189 cp += l;
190 cplen -= l;
191 }
192
193 return 0;
194}
195
196static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
197 unsigned long align)
198{
199 void *res;
200
201 *mem = _ALIGN(*mem, align);
202 res = (void *)*mem;
203 *mem += size;
204
205 return res;
206}
207
208static unsigned long __init unflatten_dt_node(unsigned long mem,
209 unsigned long *p,
210 struct device_node *dad,
211 struct device_node ***allnextpp,
212 unsigned long fpsize)
213{
214 struct device_node *np;
215 struct property *pp, **prev_pp = NULL;
216 char *pathp;
217 u32 tag;
218 unsigned int l, allocl;
219 int has_name = 0;
220 int new_format = 0;
221
222 tag = *((u32 *)(*p));
223 if (tag != OF_DT_BEGIN_NODE) {
224 printk("Weird tag at start of node: %x\n", tag);
225 return mem;
226 }
227 *p += 4;
228 pathp = (char *)*p;
229 l = allocl = strlen(pathp) + 1;
230 *p = _ALIGN(*p + l, 4);
231
232 /* version 0x10 has a more compact unit name here instead of the full
233 * path. we accumulate the full path size using "fpsize", we'll rebuild
234 * it later. We detect this because the first character of the name is
235 * not '/'.
236 */
237 if ((*pathp) != '/') {
238 new_format = 1;
239 if (fpsize == 0) {
240 /* root node: special case. fpsize accounts for path
241 * plus terminating zero. root node only has '/', so
242 * fpsize should be 2, but we want to avoid the first
243 * level nodes to have two '/' so we use fpsize 1 here
244 */
245 fpsize = 1;
246 allocl = 2;
247 } else {
248 /* account for '/' and path size minus terminal 0
249 * already in 'l'
250 */
251 fpsize += l;
252 allocl = fpsize;
253 }
254 }
255
256 np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
257 __alignof__(struct device_node));
258 if (allnextpp) {
259 memset(np, 0, sizeof(*np));
260 np->full_name = ((char *)np) + sizeof(struct device_node);
261 if (new_format) {
262 char *p2 = np->full_name;
263 /* rebuild full path for new format */
264 if (dad && dad->parent) {
265 strcpy(p2, dad->full_name);
266#ifdef DEBUG
267 if ((strlen(p2) + l + 1) != allocl) {
268 pr_debug("%s: p: %d, l: %d, a: %d\n",
269 pathp, (int)strlen(p2),
270 l, allocl);
271 }
272#endif
273 p2 += strlen(p2);
274 }
275 *(p2++) = '/';
276 memcpy(p2, pathp, l);
277 } else
278 memcpy(np->full_name, pathp, l);
279 prev_pp = &np->properties;
280 **allnextpp = np;
281 *allnextpp = &np->allnext;
282 if (dad != NULL) {
283 np->parent = dad;
284 /* we temporarily use the next field as `last_child'*/
285 if (dad->next == NULL)
286 dad->child = np;
287 else
288 dad->next->sibling = np;
289 dad->next = np;
290 }
291 kref_init(&np->kref);
292 }
293 while (1) {
294 u32 sz, noff;
295 char *pname;
296
297 tag = *((u32 *)(*p));
298 if (tag == OF_DT_NOP) {
299 *p += 4;
300 continue;
301 }
302 if (tag != OF_DT_PROP)
303 break;
304 *p += 4;
305 sz = *((u32 *)(*p));
306 noff = *((u32 *)((*p) + 4));
307 *p += 8;
308 if (initial_boot_params->version < 0x10)
309 *p = _ALIGN(*p, sz >= 8 ? 8 : 4);
310
311 pname = find_flat_dt_string(noff);
312 if (pname == NULL) {
313 printk(KERN_INFO
314 "Can't find property name in list !\n");
315 break;
316 }
317 if (strcmp(pname, "name") == 0)
318 has_name = 1;
319 l = strlen(pname) + 1;
320 pp = unflatten_dt_alloc(&mem, sizeof(struct property),
321 __alignof__(struct property));
322 if (allnextpp) {
323 if (strcmp(pname, "linux,phandle") == 0) {
324 np->node = *((u32 *)*p);
325 if (np->linux_phandle == 0)
326 np->linux_phandle = np->node;
327 }
328 if (strcmp(pname, "ibm,phandle") == 0)
329 np->linux_phandle = *((u32 *)*p);
330 pp->name = pname;
331 pp->length = sz;
332 pp->value = (void *)*p;
333 *prev_pp = pp;
334 prev_pp = &pp->next;
335 }
336 *p = _ALIGN((*p) + sz, 4);
337 }
338 /* with version 0x10 we may not have the name property, recreate
339 * it here from the unit name if absent
340 */
341 if (!has_name) {
342 char *p1 = pathp, *ps = pathp, *pa = NULL;
343 int sz;
344
345 while (*p1) {
346 if ((*p1) == '@')
347 pa = p1;
348 if ((*p1) == '/')
349 ps = p1 + 1;
350 p1++;
351 }
352 if (pa < ps)
353 pa = p1;
354 sz = (pa - ps) + 1;
355 pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
356 __alignof__(struct property));
357 if (allnextpp) {
358 pp->name = "name";
359 pp->length = sz;
360 pp->value = pp + 1;
361 *prev_pp = pp;
362 prev_pp = &pp->next;
363 memcpy(pp->value, ps, sz - 1);
364 ((char *)pp->value)[sz - 1] = 0;
365 pr_debug("fixed up name for %s -> %s\n", pathp,
366 (char *)pp->value);
367 }
368 }
369 if (allnextpp) {
370 *prev_pp = NULL;
371 np->name = of_get_property(np, "name", NULL);
372 np->type = of_get_property(np, "device_type", NULL);
373
374 if (!np->name)
375 np->name = "<NULL>";
376 if (!np->type)
377 np->type = "<NULL>";
378 }
379 while (tag == OF_DT_BEGIN_NODE) {
380 mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
381 tag = *((u32 *)(*p));
382 }
383 if (tag != OF_DT_END_NODE) {
384 printk(KERN_INFO "Weird tag at end of node: %x\n", tag);
385 return mem;
386 }
387 *p += 4;
388 return mem;
389}
390
391/**
392 * unflattens the device-tree passed by the firmware, creating the
393 * tree of struct device_node. It also fills the "name" and "type"
394 * pointers of the nodes so the normal device-tree walking functions
395 * can be used (this used to be done by finish_device_tree)
396 */
397void __init unflatten_device_tree(void)
398{
399 unsigned long start, mem, size;
400 struct device_node **allnextp = &allnodes;
401
402 pr_debug(" -> unflatten_device_tree()\n");
403
404 /* First pass, scan for size */
405 start = ((unsigned long)initial_boot_params) +
406 initial_boot_params->off_dt_struct;
407 size = unflatten_dt_node(0, &start, NULL, NULL, 0);
408 size = (size | 3) + 1;
409
410 pr_debug(" size is %lx, allocating...\n", size);
411
412 /* Allocate memory for the expanded device tree */
413 mem = lmb_alloc(size + 4, __alignof__(struct device_node));
414 mem = (unsigned long) __va(mem);
415
416 ((u32 *)mem)[size / 4] = 0xdeadbeef;
417
418 pr_debug(" unflattening %lx...\n", mem);
419
420 /* Second pass, do actual unflattening */
421 start = ((unsigned long)initial_boot_params) +
422 initial_boot_params->off_dt_struct;
423 unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
424 if (*((u32 *)start) != OF_DT_END)
425 printk(KERN_WARNING "Weird tag at end of tree: %08x\n",
426 *((u32 *)start));
427 if (((u32 *)mem)[size / 4] != 0xdeadbeef)
428 printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
429 ((u32 *)mem)[size / 4]);
430 *allnextp = NULL;
431
432 /* Get pointer to OF "/chosen" node for use everywhere */
433 of_chosen = of_find_node_by_path("/chosen");
434 if (of_chosen == NULL)
435 of_chosen = of_find_node_by_path("/chosen@0");
436
437 pr_debug(" <- unflatten_device_tree()\n");
438}
439
440#define early_init_dt_scan_drconf_memory(node) 0
441
442static int __init early_init_dt_scan_cpus(unsigned long node,
443 const char *uname, int depth,
444 void *data)
445{
446 static int logical_cpuid;
447 char *type = of_get_flat_dt_prop(node, "device_type", NULL);
448 const u32 *intserv;
449 int i, nthreads;
450 int found = 0;
451
452 /* We are scanning "cpu" nodes only */
453 if (type == NULL || strcmp(type, "cpu") != 0)
454 return 0;
455
456 /* Get physical cpuid */
457 intserv = of_get_flat_dt_prop(node, "reg", NULL);
458 nthreads = 1;
459
460 /*
461 * Now see if any of these threads match our boot cpu.
462 * NOTE: This must match the parsing done in smp_setup_cpu_maps.
463 */
464 for (i = 0; i < nthreads; i++) {
465 /*
466 * version 2 of the kexec param format adds the phys cpuid of
467 * booted proc.
468 */
469 if (initial_boot_params && initial_boot_params->version >= 2) {
470 if (intserv[i] ==
471 initial_boot_params->boot_cpuid_phys) {
472 found = 1;
473 break;
474 }
475 } else {
476 /*
477 * Check if it's the boot-cpu, set it's hw index now,
478 * unfortunately this format did not support booting
479 * off secondary threads.
480 */
481 if (of_get_flat_dt_prop(node,
482 "linux,boot-cpu", NULL) != NULL) {
483 found = 1;
484 break;
485 }
486 }
487
488#ifdef CONFIG_SMP
489 /* logical cpu id is always 0 on UP kernels */
490 logical_cpuid++;
491#endif
492 }
493
494 if (found) {
495 pr_debug("boot cpu: logical %d physical %d\n", logical_cpuid,
496 intserv[i]);
497 boot_cpuid = logical_cpuid;
498 }
499
500 return 0;
501}
502
503#ifdef CONFIG_BLK_DEV_INITRD
504static void __init early_init_dt_check_for_initrd(unsigned long node)
505{
506 unsigned long l;
507 u32 *prop;
508
509 pr_debug("Looking for initrd properties... ");
510
511 prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l);
512 if (prop) {
513 initrd_start = (unsigned long)__va(of_read_ulong(prop, l/4));
514
515 prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l);
516 if (prop) {
517 initrd_end = (unsigned long)
518 __va(of_read_ulong(prop, l/4));
519 initrd_below_start_ok = 1;
520 } else {
521 initrd_start = 0;
522 }
523 }
524
525 pr_debug("initrd_start=0x%lx initrd_end=0x%lx\n",
526 initrd_start, initrd_end);
527}
528#else
529static inline void early_init_dt_check_for_initrd(unsigned long node)
530{
531}
532#endif /* CONFIG_BLK_DEV_INITRD */
533
534static int __init early_init_dt_scan_chosen(unsigned long node,
535 const char *uname, int depth, void *data)
536{
537 unsigned long l;
538 char *p;
539
540 pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
541
542 if (depth != 1 ||
543 (strcmp(uname, "chosen") != 0 &&
544 strcmp(uname, "chosen@0") != 0))
545 return 0;
546
547#ifdef CONFIG_KEXEC
548 lprop = (u64 *)of_get_flat_dt_prop(node,
549 "linux,crashkernel-base", NULL);
550 if (lprop)
551 crashk_res.start = *lprop;
552
553 lprop = (u64 *)of_get_flat_dt_prop(node,
554 "linux,crashkernel-size", NULL);
555 if (lprop)
556 crashk_res.end = crashk_res.start + *lprop - 1;
557#endif
558
559 early_init_dt_check_for_initrd(node);
560
561 /* Retreive command line */
562 p = of_get_flat_dt_prop(node, "bootargs", &l);
563 if (p != NULL && l > 0)
564 strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
565
566#ifdef CONFIG_CMDLINE
567 if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
568 strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
569#endif /* CONFIG_CMDLINE */
570
571 pr_debug("Command line is: %s\n", cmd_line);
572
573 /* break now */
574 return 1;
575}
576
577static int __init early_init_dt_scan_root(unsigned long node,
578 const char *uname, int depth, void *data)
579{
580 u32 *prop;
581
582 if (depth != 0)
583 return 0;
584
585 prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
586 dt_root_size_cells = (prop == NULL) ? 1 : *prop;
587 pr_debug("dt_root_size_cells = %x\n", dt_root_size_cells);
588
589 prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
590 dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
591 pr_debug("dt_root_addr_cells = %x\n", dt_root_addr_cells);
592
593 /* break now */
594 return 1;
595}
596
597static u64 __init dt_mem_next_cell(int s, cell_t **cellp)
598{
599 cell_t *p = *cellp;
600
601 *cellp = p + s;
602 return of_read_number(p, s);
603}
604
605static int __init early_init_dt_scan_memory(unsigned long node,
606 const char *uname, int depth, void *data)
607{
608 char *type = of_get_flat_dt_prop(node, "device_type", NULL);
609 cell_t *reg, *endp;
610 unsigned long l;
611
612 /* Look for the ibm,dynamic-reconfiguration-memory node */
613/* if (depth == 1 &&
614 strcmp(uname, "ibm,dynamic-reconfiguration-memory") == 0)
615 return early_init_dt_scan_drconf_memory(node);
616*/
617 /* We are scanning "memory" nodes only */
618 if (type == NULL) {
619 /*
620 * The longtrail doesn't have a device_type on the
621 * /memory node, so look for the node called /memory@0.
622 */
623 if (depth != 1 || strcmp(uname, "memory@0") != 0)
624 return 0;
625 } else if (strcmp(type, "memory") != 0)
626 return 0;
627
628 reg = (cell_t *)of_get_flat_dt_prop(node, "linux,usable-memory", &l);
629 if (reg == NULL)
630 reg = (cell_t *)of_get_flat_dt_prop(node, "reg", &l);
631 if (reg == NULL)
632 return 0;
633
634 endp = reg + (l / sizeof(cell_t));
635
636 pr_debug("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
637 uname, l, reg[0], reg[1], reg[2], reg[3]);
638
639 while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
640 u64 base, size;
641
642 base = dt_mem_next_cell(dt_root_addr_cells, &reg);
643 size = dt_mem_next_cell(dt_root_size_cells, &reg);
644
645 if (size == 0)
646 continue;
647 pr_debug(" - %llx , %llx\n", (unsigned long long)base,
648 (unsigned long long)size);
649
650 lmb_add(base, size);
651 }
652 return 0;
653}
654
655#ifdef CONFIG_PHYP_DUMP
656/**
657 * phyp_dump_calculate_reserve_size() - reserve variable boot area 5% or arg
658 *
659 * Function to find the largest size we need to reserve
660 * during early boot process.
661 *
662 * It either looks for boot param and returns that OR
663 * returns larger of 256 or 5% rounded down to multiples of 256MB.
664 *
665 */
666static inline unsigned long phyp_dump_calculate_reserve_size(void)
667{
668 unsigned long tmp;
669
670 if (phyp_dump_info->reserve_bootvar)
671 return phyp_dump_info->reserve_bootvar;
672
673 /* divide by 20 to get 5% of value */
674 tmp = lmb_end_of_DRAM();
675 do_div(tmp, 20);
676
677 /* round it down in multiples of 256 */
678 tmp = tmp & ~0x0FFFFFFFUL;
679
680 return (tmp > PHYP_DUMP_RMR_END ? tmp : PHYP_DUMP_RMR_END);
681}
682
683/**
684 * phyp_dump_reserve_mem() - reserve all not-yet-dumped mmemory
685 *
686 * This routine may reserve memory regions in the kernel only
687 * if the system is supported and a dump was taken in last
688 * boot instance or if the hardware is supported and the
689 * scratch area needs to be setup. In other instances it returns
690 * without reserving anything. The memory in case of dump being
691 * active is freed when the dump is collected (by userland tools).
692 */
693static void __init phyp_dump_reserve_mem(void)
694{
695 unsigned long base, size;
696 unsigned long variable_reserve_size;
697
698 if (!phyp_dump_info->phyp_dump_configured) {
699 printk(KERN_ERR "Phyp-dump not supported on this hardware\n");
700 return;
701 }
702
703 if (!phyp_dump_info->phyp_dump_at_boot) {
704 printk(KERN_INFO "Phyp-dump disabled at boot time\n");
705 return;
706 }
707
708 variable_reserve_size = phyp_dump_calculate_reserve_size();
709
710 if (phyp_dump_info->phyp_dump_is_active) {
711 /* Reserve *everything* above RMR.Area freed by userland tools*/
712 base = variable_reserve_size;
713 size = lmb_end_of_DRAM() - base;
714
715 /* XXX crashed_ram_end is wrong, since it may be beyond
716 * the memory_limit, it will need to be adjusted. */
717 lmb_reserve(base, size);
718
719 phyp_dump_info->init_reserve_start = base;
720 phyp_dump_info->init_reserve_size = size;
721 } else {
722 size = phyp_dump_info->cpu_state_size +
723 phyp_dump_info->hpte_region_size +
724 variable_reserve_size;
725 base = lmb_end_of_DRAM() - size;
726 lmb_reserve(base, size);
727 phyp_dump_info->init_reserve_start = base;
728 phyp_dump_info->init_reserve_size = size;
729 }
730}
731#else
732static inline void __init phyp_dump_reserve_mem(void) {}
733#endif /* CONFIG_PHYP_DUMP && CONFIG_PPC_RTAS */
734
735#ifdef CONFIG_EARLY_PRINTK
736/* MS this is Microblaze specifig function */
737static int __init early_init_dt_scan_serial(unsigned long node,
738 const char *uname, int depth, void *data)
739{
740 unsigned long l;
741 char *p;
742 int *addr;
743
744 pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
745
746/* find all serial nodes */
747 if (strncmp(uname, "serial", 6) != 0)
748 return 0;
749
750 early_init_dt_check_for_initrd(node);
751
752/* find compatible node with uartlite */
753 p = of_get_flat_dt_prop(node, "compatible", &l);
754 if ((strncmp(p, "xlnx,xps-uartlite", 17) != 0) &&
755 (strncmp(p, "xlnx,opb-uartlite", 17) != 0))
756 return 0;
757
758 addr = of_get_flat_dt_prop(node, "reg", &l);
759 return *addr; /* return address */
760}
761
762/* this function is looking for early uartlite console - Microblaze specific */
763int __init early_uartlite_console(void)
764{
765 return of_scan_flat_dt(early_init_dt_scan_serial, NULL);
766}
767#endif
768
769void __init early_init_devtree(void *params)
770{
771 pr_debug(" -> early_init_devtree(%p)\n", params);
772
773 /* Setup flat device-tree pointer */
774 initial_boot_params = params;
775
776#ifdef CONFIG_PHYP_DUMP
777 /* scan tree to see if dump occured during last boot */
778 of_scan_flat_dt(early_init_dt_scan_phyp_dump, NULL);
779#endif
780
781 /* Retrieve various informations from the /chosen node of the
782 * device-tree, including the platform type, initrd location and
783 * size, TCE reserve, and more ...
784 */
785 of_scan_flat_dt(early_init_dt_scan_chosen, NULL);
786
787 /* Scan memory nodes and rebuild LMBs */
788 lmb_init();
789 of_scan_flat_dt(early_init_dt_scan_root, NULL);
790 of_scan_flat_dt(early_init_dt_scan_memory, NULL);
791
792 /* Save command line for /proc/cmdline and then parse parameters */
793 strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
794 parse_early_param();
795
796 lmb_analyze();
797
798 pr_debug("Phys. mem: %lx\n", (unsigned long) lmb_phys_mem_size());
799
800 pr_debug("Scanning CPUs ...\n");
801
802 /* Retreive CPU related informations from the flat tree
803 * (altivec support, boot CPU ID, ...)
804 */
805 of_scan_flat_dt(early_init_dt_scan_cpus, NULL);
806
807 pr_debug(" <- early_init_devtree()\n");
808}
809
810/**
811 * Indicates whether the root node has a given value in its
812 * compatible property.
813 */
814int machine_is_compatible(const char *compat)
815{
816 struct device_node *root;
817 int rc = 0;
818
819 root = of_find_node_by_path("/");
820 if (root) {
821 rc = of_device_is_compatible(root, compat);
822 of_node_put(root);
823 }
824 return rc;
825}
826EXPORT_SYMBOL(machine_is_compatible);
827
828/*******
829 *
830 * New implementation of the OF "find" APIs, return a refcounted
831 * object, call of_node_put() when done. The device tree and list
832 * are protected by a rw_lock.
833 *
834 * Note that property management will need some locking as well,
835 * this isn't dealt with yet.
836 *
837 *******/
838
839/**
840 * of_find_node_by_phandle - Find a node given a phandle
841 * @handle: phandle of the node to find
842 *
843 * Returns a node pointer with refcount incremented, use
844 * of_node_put() on it when done.
845 */
846struct device_node *of_find_node_by_phandle(phandle handle)
847{
848 struct device_node *np;
849
850 read_lock(&devtree_lock);
851 for (np = allnodes; np != NULL; np = np->allnext)
852 if (np->linux_phandle == handle)
853 break;
854 of_node_get(np);
855 read_unlock(&devtree_lock);
856 return np;
857}
858EXPORT_SYMBOL(of_find_node_by_phandle);
859
860/**
861 * of_find_all_nodes - Get next node in global list
862 * @prev: Previous node or NULL to start iteration
863 * of_node_put() will be called on it
864 *
865 * Returns a node pointer with refcount incremented, use
866 * of_node_put() on it when done.
867 */
868struct device_node *of_find_all_nodes(struct device_node *prev)
869{
870 struct device_node *np;
871
872 read_lock(&devtree_lock);
873 np = prev ? prev->allnext : allnodes;
874 for (; np != NULL; np = np->allnext)
875 if (of_node_get(np))
876 break;
877 of_node_put(prev);
878 read_unlock(&devtree_lock);
879 return np;
880}
881EXPORT_SYMBOL(of_find_all_nodes);
882
883/**
884 * of_node_get - Increment refcount of a node
885 * @node: Node to inc refcount, NULL is supported to
886 * simplify writing of callers
887 *
888 * Returns node.
889 */
890struct device_node *of_node_get(struct device_node *node)
891{
892 if (node)
893 kref_get(&node->kref);
894 return node;
895}
896EXPORT_SYMBOL(of_node_get);
897
898static inline struct device_node *kref_to_device_node(struct kref *kref)
899{
900 return container_of(kref, struct device_node, kref);
901}
902
903/**
904 * of_node_release - release a dynamically allocated node
905 * @kref: kref element of the node to be released
906 *
907 * In of_node_put() this function is passed to kref_put()
908 * as the destructor.
909 */
910static void of_node_release(struct kref *kref)
911{
912 struct device_node *node = kref_to_device_node(kref);
913 struct property *prop = node->properties;
914
915 /* We should never be releasing nodes that haven't been detached. */
916 if (!of_node_check_flag(node, OF_DETACHED)) {
917 printk(KERN_INFO "WARNING: Bad of_node_put() on %s\n",
918 node->full_name);
919 dump_stack();
920 kref_init(&node->kref);
921 return;
922 }
923
924 if (!of_node_check_flag(node, OF_DYNAMIC))
925 return;
926
927 while (prop) {
928 struct property *next = prop->next;
929 kfree(prop->name);
930 kfree(prop->value);
931 kfree(prop);
932 prop = next;
933
934 if (!prop) {
935 prop = node->deadprops;
936 node->deadprops = NULL;
937 }
938 }
939 kfree(node->full_name);
940 kfree(node->data);
941 kfree(node);
942}
943
944/**
945 * of_node_put - Decrement refcount of a node
946 * @node: Node to dec refcount, NULL is supported to
947 * simplify writing of callers
948 *
949 */
950void of_node_put(struct device_node *node)
951{
952 if (node)
953 kref_put(&node->kref, of_node_release);
954}
955EXPORT_SYMBOL(of_node_put);
956
957/*
958 * Plug a device node into the tree and global list.
959 */
960void of_attach_node(struct device_node *np)
961{
962 unsigned long flags;
963
964 write_lock_irqsave(&devtree_lock, flags);
965 np->sibling = np->parent->child;
966 np->allnext = allnodes;
967 np->parent->child = np;
968 allnodes = np;
969 write_unlock_irqrestore(&devtree_lock, flags);
970}
971
972/*
973 * "Unplug" a node from the device tree. The caller must hold
974 * a reference to the node. The memory associated with the node
975 * is not freed until its refcount goes to zero.
976 */
977void of_detach_node(struct device_node *np)
978{
979 struct device_node *parent;
980 unsigned long flags;
981
982 write_lock_irqsave(&devtree_lock, flags);
983
984 parent = np->parent;
985 if (!parent)
986 goto out_unlock;
987
988 if (allnodes == np)
989 allnodes = np->allnext;
990 else {
991 struct device_node *prev;
992 for (prev = allnodes;
993 prev->allnext != np;
994 prev = prev->allnext)
995 ;
996 prev->allnext = np->allnext;
997 }
998
999 if (parent->child == np)
1000 parent->child = np->sibling;
1001 else {
1002 struct device_node *prevsib;
1003 for (prevsib = np->parent->child;
1004 prevsib->sibling != np;
1005 prevsib = prevsib->sibling)
1006 ;
1007 prevsib->sibling = np->sibling;
1008 }
1009
1010 of_node_set_flag(np, OF_DETACHED);
1011
1012out_unlock:
1013 write_unlock_irqrestore(&devtree_lock, flags);
1014}
1015
1016/*
1017 * Add a property to a node
1018 */
1019int prom_add_property(struct device_node *np, struct property *prop)
1020{
1021 struct property **next;
1022 unsigned long flags;
1023
1024 prop->next = NULL;
1025 write_lock_irqsave(&devtree_lock, flags);
1026 next = &np->properties;
1027 while (*next) {
1028 if (strcmp(prop->name, (*next)->name) == 0) {
1029 /* duplicate ! don't insert it */
1030 write_unlock_irqrestore(&devtree_lock, flags);
1031 return -1;
1032 }
1033 next = &(*next)->next;
1034 }
1035 *next = prop;
1036 write_unlock_irqrestore(&devtree_lock, flags);
1037
1038#ifdef CONFIG_PROC_DEVICETREE
1039 /* try to add to proc as well if it was initialized */
1040 if (np->pde)
1041 proc_device_tree_add_prop(np->pde, prop);
1042#endif /* CONFIG_PROC_DEVICETREE */
1043
1044 return 0;
1045}
1046
1047/*
1048 * Remove a property from a node. Note that we don't actually
1049 * remove it, since we have given out who-knows-how-many pointers
1050 * to the data using get-property. Instead we just move the property
1051 * to the "dead properties" list, so it won't be found any more.
1052 */
1053int prom_remove_property(struct device_node *np, struct property *prop)
1054{
1055 struct property **next;
1056 unsigned long flags;
1057 int found = 0;
1058
1059 write_lock_irqsave(&devtree_lock, flags);
1060 next = &np->properties;
1061 while (*next) {
1062 if (*next == prop) {
1063 /* found the node */
1064 *next = prop->next;
1065 prop->next = np->deadprops;
1066 np->deadprops = prop;
1067 found = 1;
1068 break;
1069 }
1070 next = &(*next)->next;
1071 }
1072 write_unlock_irqrestore(&devtree_lock, flags);
1073
1074 if (!found)
1075 return -ENODEV;
1076
1077#ifdef CONFIG_PROC_DEVICETREE
1078 /* try to remove the proc node as well */
1079 if (np->pde)
1080 proc_device_tree_remove_prop(np->pde, prop);
1081#endif /* CONFIG_PROC_DEVICETREE */
1082
1083 return 0;
1084}
1085
1086/*
1087 * Update a property in a node. Note that we don't actually
1088 * remove it, since we have given out who-knows-how-many pointers
1089 * to the data using get-property. Instead we just move the property
1090 * to the "dead properties" list, and add the new property to the
1091 * property list
1092 */
1093int prom_update_property(struct device_node *np,
1094 struct property *newprop,
1095 struct property *oldprop)
1096{
1097 struct property **next;
1098 unsigned long flags;
1099 int found = 0;
1100
1101 write_lock_irqsave(&devtree_lock, flags);
1102 next = &np->properties;
1103 while (*next) {
1104 if (*next == oldprop) {
1105 /* found the node */
1106 newprop->next = oldprop->next;
1107 *next = newprop;
1108 oldprop->next = np->deadprops;
1109 np->deadprops = oldprop;
1110 found = 1;
1111 break;
1112 }
1113 next = &(*next)->next;
1114 }
1115 write_unlock_irqrestore(&devtree_lock, flags);
1116
1117 if (!found)
1118 return -ENODEV;
1119
1120#ifdef CONFIG_PROC_DEVICETREE
1121 /* try to add to proc as well if it was initialized */
1122 if (np->pde)
1123 proc_device_tree_update_prop(np->pde, newprop, oldprop);
1124#endif /* CONFIG_PROC_DEVICETREE */
1125
1126 return 0;
1127}
1128
1129#if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
1130static struct debugfs_blob_wrapper flat_dt_blob;
1131
1132static int __init export_flat_device_tree(void)
1133{
1134 struct dentry *d;
1135
1136 flat_dt_blob.data = initial_boot_params;
1137 flat_dt_blob.size = initial_boot_params->totalsize;
1138
1139 d = debugfs_create_blob("flat-device-tree", S_IFREG | S_IRUSR,
1140 of_debugfs_root, &flat_dt_blob);
1141 if (!d)
1142 return 1;
1143
1144 return 0;
1145}
1146device_initcall(export_flat_device_tree);
1147#endif
diff --git a/arch/microblaze/kernel/prom_parse.c b/arch/microblaze/kernel/prom_parse.c
new file mode 100644
index 000000000000..ae0352ecd5a9
--- /dev/null
+++ b/arch/microblaze/kernel/prom_parse.c
@@ -0,0 +1,1025 @@
1#undef DEBUG
2
3#include <linux/kernel.h>
4#include <linux/string.h>
5#include <linux/pci_regs.h>
6#include <linux/module.h>
7#include <linux/ioport.h>
8#include <linux/etherdevice.h>
9#include <asm/prom.h>
10#include <asm/pci-bridge.h>
11
12#define PRu64 "%llx"
13
14/* Max address size we deal with */
15#define OF_MAX_ADDR_CELLS 4
16#define OF_CHECK_COUNTS(na, ns) ((na) > 0 && (na) <= OF_MAX_ADDR_CELLS && \
17 (ns) > 0)
18
19static struct of_bus *of_match_bus(struct device_node *np);
20static int __of_address_to_resource(struct device_node *dev,
21 const u32 *addrp, u64 size, unsigned int flags,
22 struct resource *r);
23
24/* Debug utility */
25#ifdef DEBUG
26static void of_dump_addr(const char *s, const u32 *addr, int na)
27{
28 printk(KERN_INFO "%s", s);
29 while (na--)
30 printk(KERN_INFO " %08x", *(addr++));
31 printk(KERN_INFO "\n");
32}
33#else
34static void of_dump_addr(const char *s, const u32 *addr, int na) { }
35#endif
36
37/* Callbacks for bus specific translators */
38struct of_bus {
39 const char *name;
40 const char *addresses;
41 int (*match)(struct device_node *parent);
42 void (*count_cells)(struct device_node *child,
43 int *addrc, int *sizec);
44 u64 (*map)(u32 *addr, const u32 *range,
45 int na, int ns, int pna);
46 int (*translate)(u32 *addr, u64 offset, int na);
47 unsigned int (*get_flags)(const u32 *addr);
48};
49
50/*
51 * Default translator (generic bus)
52 */
53
54static void of_bus_default_count_cells(struct device_node *dev,
55 int *addrc, int *sizec)
56{
57 if (addrc)
58 *addrc = of_n_addr_cells(dev);
59 if (sizec)
60 *sizec = of_n_size_cells(dev);
61}
62
63static u64 of_bus_default_map(u32 *addr, const u32 *range,
64 int na, int ns, int pna)
65{
66 u64 cp, s, da;
67
68 cp = of_read_number(range, na);
69 s = of_read_number(range + na + pna, ns);
70 da = of_read_number(addr, na);
71
72 pr_debug("OF: default map, cp="PRu64", s="PRu64", da="PRu64"\n",
73 cp, s, da);
74
75 if (da < cp || da >= (cp + s))
76 return OF_BAD_ADDR;
77 return da - cp;
78}
79
80static int of_bus_default_translate(u32 *addr, u64 offset, int na)
81{
82 u64 a = of_read_number(addr, na);
83 memset(addr, 0, na * 4);
84 a += offset;
85 if (na > 1)
86 addr[na - 2] = a >> 32;
87 addr[na - 1] = a & 0xffffffffu;
88
89 return 0;
90}
91
92static unsigned int of_bus_default_get_flags(const u32 *addr)
93{
94 return IORESOURCE_MEM;
95}
96
97#ifdef CONFIG_PCI
98/*
99 * PCI bus specific translator
100 */
101
102static int of_bus_pci_match(struct device_node *np)
103{
104 /* "vci" is for the /chaos bridge on 1st-gen PCI powermacs */
105 return !strcmp(np->type, "pci") || !strcmp(np->type, "vci");
106}
107
108static void of_bus_pci_count_cells(struct device_node *np,
109 int *addrc, int *sizec)
110{
111 if (addrc)
112 *addrc = 3;
113 if (sizec)
114 *sizec = 2;
115}
116
117static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna)
118{
119 u64 cp, s, da;
120
121 /* Check address type match */
122 if ((addr[0] ^ range[0]) & 0x03000000)
123 return OF_BAD_ADDR;
124
125 /* Read address values, skipping high cell */
126 cp = of_read_number(range + 1, na - 1);
127 s = of_read_number(range + na + pna, ns);
128 da = of_read_number(addr + 1, na - 1);
129
130 pr_debug("OF: PCI map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da);
131
132 if (da < cp || da >= (cp + s))
133 return OF_BAD_ADDR;
134 return da - cp;
135}
136
137static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
138{
139 return of_bus_default_translate(addr + 1, offset, na - 1);
140}
141
142static unsigned int of_bus_pci_get_flags(const u32 *addr)
143{
144 unsigned int flags = 0;
145 u32 w = addr[0];
146
147 switch ((w >> 24) & 0x03) {
148 case 0x01:
149 flags |= IORESOURCE_IO;
150 break;
151 case 0x02: /* 32 bits */
152 case 0x03: /* 64 bits */
153 flags |= IORESOURCE_MEM;
154 break;
155 }
156 if (w & 0x40000000)
157 flags |= IORESOURCE_PREFETCH;
158 return flags;
159}
160
161const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
162 unsigned int *flags)
163{
164 const u32 *prop;
165 unsigned int psize;
166 struct device_node *parent;
167 struct of_bus *bus;
168 int onesize, i, na, ns;
169
170 /* Get parent & match bus type */
171 parent = of_get_parent(dev);
172 if (parent == NULL)
173 return NULL;
174 bus = of_match_bus(parent);
175 if (strcmp(bus->name, "pci")) {
176 of_node_put(parent);
177 return NULL;
178 }
179 bus->count_cells(dev, &na, &ns);
180 of_node_put(parent);
181 if (!OF_CHECK_COUNTS(na, ns))
182 return NULL;
183
184 /* Get "reg" or "assigned-addresses" property */
185 prop = of_get_property(dev, bus->addresses, &psize);
186 if (prop == NULL)
187 return NULL;
188 psize /= 4;
189
190 onesize = na + ns;
191 for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++)
192 if ((prop[0] & 0xff) == ((bar_no * 4) + PCI_BASE_ADDRESS_0)) {
193 if (size)
194 *size = of_read_number(prop + na, ns);
195 if (flags)
196 *flags = bus->get_flags(prop);
197 return prop;
198 }
199 return NULL;
200}
201EXPORT_SYMBOL(of_get_pci_address);
202
203int of_pci_address_to_resource(struct device_node *dev, int bar,
204 struct resource *r)
205{
206 const u32 *addrp;
207 u64 size;
208 unsigned int flags;
209
210 addrp = of_get_pci_address(dev, bar, &size, &flags);
211 if (addrp == NULL)
212 return -EINVAL;
213 return __of_address_to_resource(dev, addrp, size, flags, r);
214}
215EXPORT_SYMBOL_GPL(of_pci_address_to_resource);
216
217static u8 of_irq_pci_swizzle(u8 slot, u8 pin)
218{
219 return (((pin - 1) + slot) % 4) + 1;
220}
221
222int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
223{
224 struct device_node *dn, *ppnode;
225 struct pci_dev *ppdev;
226 u32 lspec;
227 u32 laddr[3];
228 u8 pin;
229 int rc;
230
231 /* Check if we have a device node, if yes, fallback to standard OF
232 * parsing
233 */
234 dn = pci_device_to_OF_node(pdev);
235 if (dn)
236 return of_irq_map_one(dn, 0, out_irq);
237
238 /* Ok, we don't, time to have fun. Let's start by building up an
239 * interrupt spec. we assume #interrupt-cells is 1, which is standard
240 * for PCI. If you do different, then don't use that routine.
241 */
242 rc = pci_read_config_byte(pdev, PCI_INTERRUPT_PIN, &pin);
243 if (rc != 0)
244 return rc;
245 /* No pin, exit */
246 if (pin == 0)
247 return -ENODEV;
248
249 /* Now we walk up the PCI tree */
250 lspec = pin;
251 for (;;) {
252 /* Get the pci_dev of our parent */
253 ppdev = pdev->bus->self;
254
255 /* Ouch, it's a host bridge... */
256 if (ppdev == NULL) {
257 struct pci_controller *host;
258 host = pci_bus_to_host(pdev->bus);
259 ppnode = host ? host->arch_data : NULL;
260 /* No node for host bridge ? give up */
261 if (ppnode == NULL)
262 return -EINVAL;
263 } else
264 /* We found a P2P bridge, check if it has a node */
265 ppnode = pci_device_to_OF_node(ppdev);
266
267 /* Ok, we have found a parent with a device-node, hand over to
268 * the OF parsing code.
269 * We build a unit address from the linux device to be used for
270 * resolution. Note that we use the linux bus number which may
271 * not match your firmware bus numbering.
272 * Fortunately, in most cases, interrupt-map-mask doesn't
273 * include the bus number as part of the matching.
274 * You should still be careful about that though if you intend
275 * to rely on this function (you ship a firmware that doesn't
276 * create device nodes for all PCI devices).
277 */
278 if (ppnode)
279 break;
280
281 /* We can only get here if we hit a P2P bridge with no node,
282 * let's do standard swizzling and try again
283 */
284 lspec = of_irq_pci_swizzle(PCI_SLOT(pdev->devfn), lspec);
285 pdev = ppdev;
286 }
287
288 laddr[0] = (pdev->bus->number << 16)
289 | (pdev->devfn << 8);
290 laddr[1] = laddr[2] = 0;
291 return of_irq_map_raw(ppnode, &lspec, 1, laddr, out_irq);
292}
293EXPORT_SYMBOL_GPL(of_irq_map_pci);
294#endif /* CONFIG_PCI */
295
296/*
297 * ISA bus specific translator
298 */
299
300static int of_bus_isa_match(struct device_node *np)
301{
302 return !strcmp(np->name, "isa");
303}
304
305static void of_bus_isa_count_cells(struct device_node *child,
306 int *addrc, int *sizec)
307{
308 if (addrc)
309 *addrc = 2;
310 if (sizec)
311 *sizec = 1;
312}
313
314static u64 of_bus_isa_map(u32 *addr, const u32 *range, int na, int ns, int pna)
315{
316 u64 cp, s, da;
317
318 /* Check address type match */
319 if ((addr[0] ^ range[0]) & 0x00000001)
320 return OF_BAD_ADDR;
321
322 /* Read address values, skipping high cell */
323 cp = of_read_number(range + 1, na - 1);
324 s = of_read_number(range + na + pna, ns);
325 da = of_read_number(addr + 1, na - 1);
326
327 pr_debug("OF: ISA map, cp="PRu64", s="PRu64", da="PRu64"\n", cp, s, da);
328
329 if (da < cp || da >= (cp + s))
330 return OF_BAD_ADDR;
331 return da - cp;
332}
333
334static int of_bus_isa_translate(u32 *addr, u64 offset, int na)
335{
336 return of_bus_default_translate(addr + 1, offset, na - 1);
337}
338
339static unsigned int of_bus_isa_get_flags(const u32 *addr)
340{
341 unsigned int flags = 0;
342 u32 w = addr[0];
343
344 if (w & 1)
345 flags |= IORESOURCE_IO;
346 else
347 flags |= IORESOURCE_MEM;
348 return flags;
349}
350
351/*
352 * Array of bus specific translators
353 */
354
355static struct of_bus of_busses[] = {
356#ifdef CONFIG_PCI
357 /* PCI */
358 {
359 .name = "pci",
360 .addresses = "assigned-addresses",
361 .match = of_bus_pci_match,
362 .count_cells = of_bus_pci_count_cells,
363 .map = of_bus_pci_map,
364 .translate = of_bus_pci_translate,
365 .get_flags = of_bus_pci_get_flags,
366 },
367#endif /* CONFIG_PCI */
368 /* ISA */
369 {
370 .name = "isa",
371 .addresses = "reg",
372 .match = of_bus_isa_match,
373 .count_cells = of_bus_isa_count_cells,
374 .map = of_bus_isa_map,
375 .translate = of_bus_isa_translate,
376 .get_flags = of_bus_isa_get_flags,
377 },
378 /* Default */
379 {
380 .name = "default",
381 .addresses = "reg",
382 .match = NULL,
383 .count_cells = of_bus_default_count_cells,
384 .map = of_bus_default_map,
385 .translate = of_bus_default_translate,
386 .get_flags = of_bus_default_get_flags,
387 },
388};
389
390static struct of_bus *of_match_bus(struct device_node *np)
391{
392 int i;
393
394 for (i = 0; i < ARRAY_SIZE(of_busses); i++)
395 if (!of_busses[i].match || of_busses[i].match(np))
396 return &of_busses[i];
397 BUG();
398 return NULL;
399}
400
401static int of_translate_one(struct device_node *parent, struct of_bus *bus,
402 struct of_bus *pbus, u32 *addr,
403 int na, int ns, int pna)
404{
405 const u32 *ranges;
406 unsigned int rlen;
407 int rone;
408 u64 offset = OF_BAD_ADDR;
409
410 /* Normally, an absence of a "ranges" property means we are
411 * crossing a non-translatable boundary, and thus the addresses
412 * below the current not cannot be converted to CPU physical ones.
413 * Unfortunately, while this is very clear in the spec, it's not
414 * what Apple understood, and they do have things like /uni-n or
415 * /ht nodes with no "ranges" property and a lot of perfectly
416 * useable mapped devices below them. Thus we treat the absence of
417 * "ranges" as equivalent to an empty "ranges" property which means
418 * a 1:1 translation at that level. It's up to the caller not to try
419 * to translate addresses that aren't supposed to be translated in
420 * the first place. --BenH.
421 */
422 ranges = of_get_property(parent, "ranges", (int *) &rlen);
423 if (ranges == NULL || rlen == 0) {
424 offset = of_read_number(addr, na);
425 memset(addr, 0, pna * 4);
426 pr_debug("OF: no ranges, 1:1 translation\n");
427 goto finish;
428 }
429
430 pr_debug("OF: walking ranges...\n");
431
432 /* Now walk through the ranges */
433 rlen /= 4;
434 rone = na + pna + ns;
435 for (; rlen >= rone; rlen -= rone, ranges += rone) {
436 offset = bus->map(addr, ranges, na, ns, pna);
437 if (offset != OF_BAD_ADDR)
438 break;
439 }
440 if (offset == OF_BAD_ADDR) {
441 pr_debug("OF: not found !\n");
442 return 1;
443 }
444 memcpy(addr, ranges + na, 4 * pna);
445
446 finish:
447 of_dump_addr("OF: parent translation for:", addr, pna);
448 pr_debug("OF: with offset: "PRu64"\n", offset);
449
450 /* Translate it into parent bus space */
451 return pbus->translate(addr, offset, pna);
452}
453
454/*
455 * Translate an address from the device-tree into a CPU physical address,
456 * this walks up the tree and applies the various bus mappings on the
457 * way.
458 *
459 * Note: We consider that crossing any level with #size-cells == 0 to mean
460 * that translation is impossible (that is we are not dealing with a value
461 * that can be mapped to a cpu physical address). This is not really specified
462 * that way, but this is traditionally the way IBM at least do things
463 */
464u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
465{
466 struct device_node *parent = NULL;
467 struct of_bus *bus, *pbus;
468 u32 addr[OF_MAX_ADDR_CELLS];
469 int na, ns, pna, pns;
470 u64 result = OF_BAD_ADDR;
471
472 pr_debug("OF: ** translation for device %s **\n", dev->full_name);
473
474 /* Increase refcount at current level */
475 of_node_get(dev);
476
477 /* Get parent & match bus type */
478 parent = of_get_parent(dev);
479 if (parent == NULL)
480 goto bail;
481 bus = of_match_bus(parent);
482
483 /* Cound address cells & copy address locally */
484 bus->count_cells(dev, &na, &ns);
485 if (!OF_CHECK_COUNTS(na, ns)) {
486 printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
487 dev->full_name);
488 goto bail;
489 }
490 memcpy(addr, in_addr, na * 4);
491
492 pr_debug("OF: bus is %s (na=%d, ns=%d) on %s\n",
493 bus->name, na, ns, parent->full_name);
494 of_dump_addr("OF: translating address:", addr, na);
495
496 /* Translate */
497 for (;;) {
498 /* Switch to parent bus */
499 of_node_put(dev);
500 dev = parent;
501 parent = of_get_parent(dev);
502
503 /* If root, we have finished */
504 if (parent == NULL) {
505 pr_debug("OF: reached root node\n");
506 result = of_read_number(addr, na);
507 break;
508 }
509
510 /* Get new parent bus and counts */
511 pbus = of_match_bus(parent);
512 pbus->count_cells(dev, &pna, &pns);
513 if (!OF_CHECK_COUNTS(pna, pns)) {
514 printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
515 dev->full_name);
516 break;
517 }
518
519 pr_debug("OF: parent bus is %s (na=%d, ns=%d) on %s\n",
520 pbus->name, pna, pns, parent->full_name);
521
522 /* Apply bus translation */
523 if (of_translate_one(dev, bus, pbus, addr, na, ns, pna))
524 break;
525
526 /* Complete the move up one level */
527 na = pna;
528 ns = pns;
529 bus = pbus;
530
531 of_dump_addr("OF: one level translation:", addr, na);
532 }
533 bail:
534 of_node_put(parent);
535 of_node_put(dev);
536
537 return result;
538}
539EXPORT_SYMBOL(of_translate_address);
540
541const u32 *of_get_address(struct device_node *dev, int index, u64 *size,
542 unsigned int *flags)
543{
544 const u32 *prop;
545 unsigned int psize;
546 struct device_node *parent;
547 struct of_bus *bus;
548 int onesize, i, na, ns;
549
550 /* Get parent & match bus type */
551 parent = of_get_parent(dev);
552 if (parent == NULL)
553 return NULL;
554 bus = of_match_bus(parent);
555 bus->count_cells(dev, &na, &ns);
556 of_node_put(parent);
557 if (!OF_CHECK_COUNTS(na, ns))
558 return NULL;
559
560 /* Get "reg" or "assigned-addresses" property */
561 prop = of_get_property(dev, bus->addresses, (int *) &psize);
562 if (prop == NULL)
563 return NULL;
564 psize /= 4;
565
566 onesize = na + ns;
567 for (i = 0; psize >= onesize; psize -= onesize, prop += onesize, i++)
568 if (i == index) {
569 if (size)
570 *size = of_read_number(prop + na, ns);
571 if (flags)
572 *flags = bus->get_flags(prop);
573 return prop;
574 }
575 return NULL;
576}
577EXPORT_SYMBOL(of_get_address);
578
579static int __of_address_to_resource(struct device_node *dev, const u32 *addrp,
580 u64 size, unsigned int flags,
581 struct resource *r)
582{
583 u64 taddr;
584
585 if ((flags & (IORESOURCE_IO | IORESOURCE_MEM)) == 0)
586 return -EINVAL;
587 taddr = of_translate_address(dev, addrp);
588 if (taddr == OF_BAD_ADDR)
589 return -EINVAL;
590 memset(r, 0, sizeof(struct resource));
591 if (flags & IORESOURCE_IO) {
592 unsigned long port;
593 port = -1; /* pci_address_to_pio(taddr); */
594 if (port == (unsigned long)-1)
595 return -EINVAL;
596 r->start = port;
597 r->end = port + size - 1;
598 } else {
599 r->start = taddr;
600 r->end = taddr + size - 1;
601 }
602 r->flags = flags;
603 r->name = dev->name;
604 return 0;
605}
606
607int of_address_to_resource(struct device_node *dev, int index,
608 struct resource *r)
609{
610 const u32 *addrp;
611 u64 size;
612 unsigned int flags;
613
614 addrp = of_get_address(dev, index, &size, &flags);
615 if (addrp == NULL)
616 return -EINVAL;
617 return __of_address_to_resource(dev, addrp, size, flags, r);
618}
619EXPORT_SYMBOL_GPL(of_address_to_resource);
620
621void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
622 unsigned long *busno, unsigned long *phys, unsigned long *size)
623{
624 const u32 *dma_window;
625 u32 cells;
626 const unsigned char *prop;
627
628 dma_window = dma_window_prop;
629
630 /* busno is always one cell */
631 *busno = *(dma_window++);
632
633 prop = of_get_property(dn, "ibm,#dma-address-cells", NULL);
634 if (!prop)
635 prop = of_get_property(dn, "#address-cells", NULL);
636
637 cells = prop ? *(u32 *)prop : of_n_addr_cells(dn);
638 *phys = of_read_number(dma_window, cells);
639
640 dma_window += cells;
641
642 prop = of_get_property(dn, "ibm,#dma-size-cells", NULL);
643 cells = prop ? *(u32 *)prop : of_n_size_cells(dn);
644 *size = of_read_number(dma_window, cells);
645}
646
647/*
648 * Interrupt remapper
649 */
650
651static unsigned int of_irq_workarounds;
652static struct device_node *of_irq_dflt_pic;
653
654static struct device_node *of_irq_find_parent(struct device_node *child)
655{
656 struct device_node *p;
657 const phandle *parp;
658
659 if (!of_node_get(child))
660 return NULL;
661
662 do {
663 parp = of_get_property(child, "interrupt-parent", NULL);
664 if (parp == NULL)
665 p = of_get_parent(child);
666 else {
667 if (of_irq_workarounds & OF_IMAP_NO_PHANDLE)
668 p = of_node_get(of_irq_dflt_pic);
669 else
670 p = of_find_node_by_phandle(*parp);
671 }
672 of_node_put(child);
673 child = p;
674 } while (p && of_get_property(p, "#interrupt-cells", NULL) == NULL);
675
676 return p;
677}
678
679/* This doesn't need to be called if you don't have any special workaround
680 * flags to pass
681 */
682void of_irq_map_init(unsigned int flags)
683{
684 of_irq_workarounds = flags;
685
686 /* OldWorld, don't bother looking at other things */
687 if (flags & OF_IMAP_OLDWORLD_MAC)
688 return;
689
690 /* If we don't have phandles, let's try to locate a default interrupt
691 * controller (happens when booting with BootX). We do a first match
692 * here, hopefully, that only ever happens on machines with one
693 * controller.
694 */
695 if (flags & OF_IMAP_NO_PHANDLE) {
696 struct device_node *np;
697
698 for (np = NULL; (np = of_find_all_nodes(np)) != NULL;) {
699 if (of_get_property(np, "interrupt-controller", NULL)
700 == NULL)
701 continue;
702 /* Skip /chosen/interrupt-controller */
703 if (strcmp(np->name, "chosen") == 0)
704 continue;
705 /* It seems like at least one person on this planet
706 * wants to use BootX on a machine with an AppleKiwi
707 * controller which happens to pretend to be an
708 * interrupt controller too.
709 */
710 if (strcmp(np->name, "AppleKiwi") == 0)
711 continue;
712 /* I think we found one ! */
713 of_irq_dflt_pic = np;
714 break;
715 }
716 }
717
718}
719
720int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
721 const u32 *addr, struct of_irq *out_irq)
722{
723 struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
724 const u32 *tmp, *imap, *imask;
725 u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
726 int imaplen, match, i;
727
728 pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],"
729 "ointsize=%d\n",
730 parent->full_name, intspec[0], intspec[1], ointsize);
731
732 ipar = of_node_get(parent);
733
734 /* First get the #interrupt-cells property of the current cursor
735 * that tells us how to interpret the passed-in intspec. If there
736 * is none, we are nice and just walk up the tree
737 */
738 do {
739 tmp = of_get_property(ipar, "#interrupt-cells", NULL);
740 if (tmp != NULL) {
741 intsize = *tmp;
742 break;
743 }
744 tnode = ipar;
745 ipar = of_irq_find_parent(ipar);
746 of_node_put(tnode);
747 } while (ipar);
748 if (ipar == NULL) {
749 pr_debug(" -> no parent found !\n");
750 goto fail;
751 }
752
753 pr_debug("of_irq_map_raw: ipar=%s, size=%d\n",
754 ipar->full_name, intsize);
755
756 if (ointsize != intsize)
757 return -EINVAL;
758
759 /* Look for this #address-cells. We have to implement the old linux
760 * trick of looking for the parent here as some device-trees rely on it
761 */
762 old = of_node_get(ipar);
763 do {
764 tmp = of_get_property(old, "#address-cells", NULL);
765 tnode = of_get_parent(old);
766 of_node_put(old);
767 old = tnode;
768 } while (old && tmp == NULL);
769 of_node_put(old);
770 old = NULL;
771 addrsize = (tmp == NULL) ? 2 : *tmp;
772
773 pr_debug(" -> addrsize=%d\n", addrsize);
774
775 /* Now start the actual "proper" walk of the interrupt tree */
776 while (ipar != NULL) {
777 /* Now check if cursor is an interrupt-controller and if it is
778 * then we are done
779 */
780 if (of_get_property(ipar, "interrupt-controller", NULL) !=
781 NULL) {
782 pr_debug(" -> got it !\n");
783 memcpy(out_irq->specifier, intspec,
784 intsize * sizeof(u32));
785 out_irq->size = intsize;
786 out_irq->controller = ipar;
787 of_node_put(old);
788 return 0;
789 }
790
791 /* Now look for an interrupt-map */
792 imap = of_get_property(ipar, "interrupt-map", &imaplen);
793 /* No interrupt map, check for an interrupt parent */
794 if (imap == NULL) {
795 pr_debug(" -> no map, getting parent\n");
796 newpar = of_irq_find_parent(ipar);
797 goto skiplevel;
798 }
799 imaplen /= sizeof(u32);
800
801 /* Look for a mask */
802 imask = of_get_property(ipar, "interrupt-map-mask", NULL);
803
804 /* If we were passed no "reg" property and we attempt to parse
805 * an interrupt-map, then #address-cells must be 0.
806 * Fail if it's not.
807 */
808 if (addr == NULL && addrsize != 0) {
809 pr_debug(" -> no reg passed in when needed !\n");
810 goto fail;
811 }
812
813 /* Parse interrupt-map */
814 match = 0;
815 while (imaplen > (addrsize + intsize + 1) && !match) {
816 /* Compare specifiers */
817 match = 1;
818 for (i = 0; i < addrsize && match; ++i) {
819 u32 mask = imask ? imask[i] : 0xffffffffu;
820 match = ((addr[i] ^ imap[i]) & mask) == 0;
821 }
822 for (; i < (addrsize + intsize) && match; ++i) {
823 u32 mask = imask ? imask[i] : 0xffffffffu;
824 match =
825 ((intspec[i-addrsize] ^ imap[i])
826 & mask) == 0;
827 }
828 imap += addrsize + intsize;
829 imaplen -= addrsize + intsize;
830
831 pr_debug(" -> match=%d (imaplen=%d)\n", match, imaplen);
832
833 /* Get the interrupt parent */
834 if (of_irq_workarounds & OF_IMAP_NO_PHANDLE)
835 newpar = of_node_get(of_irq_dflt_pic);
836 else
837 newpar =
838 of_find_node_by_phandle((phandle)*imap);
839 imap++;
840 --imaplen;
841
842 /* Check if not found */
843 if (newpar == NULL) {
844 pr_debug(" -> imap parent not found !\n");
845 goto fail;
846 }
847
848 /* Get #interrupt-cells and #address-cells of new
849 * parent
850 */
851 tmp = of_get_property(newpar, "#interrupt-cells", NULL);
852 if (tmp == NULL) {
853 pr_debug(" -> parent lacks "
854 "#interrupt-cells!\n");
855 goto fail;
856 }
857 newintsize = *tmp;
858 tmp = of_get_property(newpar, "#address-cells", NULL);
859 newaddrsize = (tmp == NULL) ? 0 : *tmp;
860
861 pr_debug(" -> newintsize=%d, newaddrsize=%d\n",
862 newintsize, newaddrsize);
863
864 /* Check for malformed properties */
865 if (imaplen < (newaddrsize + newintsize))
866 goto fail;
867
868 imap += newaddrsize + newintsize;
869 imaplen -= newaddrsize + newintsize;
870
871 pr_debug(" -> imaplen=%d\n", imaplen);
872 }
873 if (!match)
874 goto fail;
875
876 of_node_put(old);
877 old = of_node_get(newpar);
878 addrsize = newaddrsize;
879 intsize = newintsize;
880 intspec = imap - intsize;
881 addr = intspec - addrsize;
882
883skiplevel:
884 /* Iterate again with new parent */
885 pr_debug(" -> new parent: %s\n",
886 newpar ? newpar->full_name : "<>");
887 of_node_put(ipar);
888 ipar = newpar;
889 newpar = NULL;
890 }
891fail:
892 of_node_put(ipar);
893 of_node_put(old);
894 of_node_put(newpar);
895
896 return -EINVAL;
897}
898EXPORT_SYMBOL_GPL(of_irq_map_raw);
899
900int of_irq_map_one(struct device_node *device,
901 int index, struct of_irq *out_irq)
902{
903 struct device_node *p;
904 const u32 *intspec, *tmp, *addr;
905 u32 intsize, intlen;
906 int res;
907
908 pr_debug("of_irq_map_one: dev=%s, index=%d\n",
909 device->full_name, index);
910
911 /* Get the interrupts property */
912 intspec = of_get_property(device, "interrupts", (int *) &intlen);
913 if (intspec == NULL)
914 return -EINVAL;
915 intlen /= sizeof(u32);
916
917 pr_debug(" intspec=%d intlen=%d\n", *intspec, intlen);
918
919 /* Get the reg property (if any) */
920 addr = of_get_property(device, "reg", NULL);
921
922 /* Look for the interrupt parent. */
923 p = of_irq_find_parent(device);
924 if (p == NULL)
925 return -EINVAL;
926
927 /* Get size of interrupt specifier */
928 tmp = of_get_property(p, "#interrupt-cells", NULL);
929 if (tmp == NULL) {
930 of_node_put(p);
931 return -EINVAL;
932 }
933 intsize = *tmp;
934
935 pr_debug(" intsize=%d intlen=%d\n", intsize, intlen);
936
937 /* Check index */
938 if ((index + 1) * intsize > intlen)
939 return -EINVAL;
940
941 /* Get new specifier and map it */
942 res = of_irq_map_raw(p, intspec + index * intsize, intsize,
943 addr, out_irq);
944 of_node_put(p);
945 return res;
946}
947EXPORT_SYMBOL_GPL(of_irq_map_one);
948
949/**
950 * Search the device tree for the best MAC address to use. 'mac-address' is
951 * checked first, because that is supposed to contain to "most recent" MAC
952 * address. If that isn't set, then 'local-mac-address' is checked next,
953 * because that is the default address. If that isn't set, then the obsolete
954 * 'address' is checked, just in case we're using an old device tree.
955 *
956 * Note that the 'address' property is supposed to contain a virtual address of
957 * the register set, but some DTS files have redefined that property to be the
958 * MAC address.
959 *
960 * All-zero MAC addresses are rejected, because those could be properties that
961 * exist in the device tree, but were not set by U-Boot. For example, the
962 * DTS could define 'mac-address' and 'local-mac-address', with zero MAC
963 * addresses. Some older U-Boots only initialized 'local-mac-address'. In
964 * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists
965 * but is all zeros.
966*/
967const void *of_get_mac_address(struct device_node *np)
968{
969 struct property *pp;
970
971 pp = of_find_property(np, "mac-address", NULL);
972 if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
973 return pp->value;
974
975 pp = of_find_property(np, "local-mac-address", NULL);
976 if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
977 return pp->value;
978
979 pp = of_find_property(np, "address", NULL);
980 if (pp && (pp->length == 6) && is_valid_ether_addr(pp->value))
981 return pp->value;
982
983 return NULL;
984}
985EXPORT_SYMBOL(of_get_mac_address);
986
987int of_irq_to_resource(struct device_node *dev, int index, struct resource *r)
988{
989 struct of_irq out_irq;
990 int irq;
991 int res;
992
993 res = of_irq_map_one(dev, index, &out_irq);
994
995 /* Get irq for the device */
996 if (res) {
997 pr_debug("IRQ not found... code = %d", res);
998 return NO_IRQ;
999 }
1000 /* Assuming single interrupt controller... */
1001 irq = out_irq.specifier[0];
1002
1003 pr_debug("IRQ found = %d", irq);
1004
1005 /* Only dereference the resource if both the
1006 * resource and the irq are valid. */
1007 if (r && irq != NO_IRQ) {
1008 r->start = r->end = irq;
1009 r->flags = IORESOURCE_IRQ;
1010 }
1011
1012 return irq;
1013}
1014EXPORT_SYMBOL_GPL(of_irq_to_resource);
1015
1016void __iomem *of_iomap(struct device_node *np, int index)
1017{
1018 struct resource res;
1019
1020 if (of_address_to_resource(np, index, &res))
1021 return NULL;
1022
1023 return ioremap(res.start, 1 + res.end - res.start);
1024}
1025EXPORT_SYMBOL(of_iomap);
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
new file mode 100644
index 000000000000..3171e39e3220
--- /dev/null
+++ b/arch/microblaze/kernel/ptrace.c
@@ -0,0 +1,182 @@
1/*
2 * `ptrace' system call
3 *
4 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2007-2009 PetaLogix
6 * Copyright (C) 2004-2007 John Williams <john.williams@petalogix.com>
7 *
8 * derived from arch/v850/kernel/ptrace.c
9 *
10 * Copyright (C) 2002,03 NEC Electronics Corporation
11 * Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
12 *
13 * Derived from arch/mips/kernel/ptrace.c:
14 *
15 * Copyright (C) 1992 Ross Biro
16 * Copyright (C) Linus Torvalds
17 * Copyright (C) 1994, 95, 96, 97, 98, 2000 Ralf Baechle
18 * Copyright (C) 1996 David S. Miller
19 * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
20 * Copyright (C) 1999 MIPS Technologies, Inc.
21 *
22 * This file is subject to the terms and conditions of the GNU General
23 * Public License. See the file COPYING in the main directory of this
24 * archive for more details.
25 */
26
27#include <linux/kernel.h>
28#include <linux/mm.h>
29#include <linux/sched.h>
30#include <linux/smp_lock.h>
31#include <linux/ptrace.h>
32#include <linux/signal.h>
33
34#include <linux/errno.h>
35#include <linux/ptrace.h>
36#include <asm/processor.h>
37#include <linux/uaccess.h>
38#include <asm/asm-offsets.h>
39
40/* Returns the address where the register at REG_OFFS in P is stashed away. */
41static microblaze_reg_t *reg_save_addr(unsigned reg_offs,
42 struct task_struct *t)
43{
44 struct pt_regs *regs;
45
46 /*
47 * Three basic cases:
48 *
49 * (1) A register normally saved before calling the scheduler, is
50 * available in the kernel entry pt_regs structure at the top
51 * of the kernel stack. The kernel trap/irq exit path takes
52 * care to save/restore almost all registers for ptrace'd
53 * processes.
54 *
55 * (2) A call-clobbered register, where the process P entered the
56 * kernel via [syscall] trap, is not stored anywhere; that's
57 * OK, because such registers are not expected to be preserved
58 * when the trap returns anyway (so we don't actually bother to
59 * test for this case).
60 *
61 * (3) A few registers not used at all by the kernel, and so
62 * normally never saved except by context-switches, are in the
63 * context switch state.
64 */
65
66 /* Register saved during kernel entry (or not available). */
67 regs = task_pt_regs(t);
68
69 return (microblaze_reg_t *)((char *)regs + reg_offs);
70}
71
72long arch_ptrace(struct task_struct *child, long request, long addr, long data)
73{
74 int rval;
75 unsigned long val = 0;
76 unsigned long copied;
77
78 switch (request) {
79 case PTRACE_PEEKTEXT: /* read word at location addr. */
80 case PTRACE_PEEKDATA:
81 pr_debug("PEEKTEXT/PEEKDATA at %08lX\n", addr);
82 copied = access_process_vm(child, addr, &val, sizeof(val), 0);
83 rval = -EIO;
84 if (copied != sizeof(val))
85 break;
86 rval = put_user(val, (unsigned long *)data);
87 break;
88
89 case PTRACE_POKETEXT: /* write the word at location addr. */
90 case PTRACE_POKEDATA:
91 pr_debug("POKETEXT/POKEDATA to %08lX\n", addr);
92 rval = 0;
93 if (access_process_vm(child, addr, &data, sizeof(data), 1)
94 == sizeof(data))
95 break;
96 rval = -EIO;
97 break;
98
99 /* Read/write the word at location ADDR in the registers. */
100 case PTRACE_PEEKUSR:
101 case PTRACE_POKEUSR:
102 pr_debug("PEEKUSR/POKEUSR : 0x%08lx\n", addr);
103 rval = 0;
104 if (addr >= PT_SIZE && request == PTRACE_PEEKUSR) {
105 /*
106 * Special requests that don't actually correspond
107 * to offsets in struct pt_regs.
108 */
109 if (addr == PT_TEXT_ADDR) {
110 val = child->mm->start_code;
111 } else if (addr == PT_DATA_ADDR) {
112 val = child->mm->start_data;
113 } else if (addr == PT_TEXT_LEN) {
114 val = child->mm->end_code
115 - child->mm->start_code;
116 } else {
117 rval = -EIO;
118 }
119 } else if (addr >= 0 && addr < PT_SIZE && (addr & 0x3) == 0) {
120 microblaze_reg_t *reg_addr = reg_save_addr(addr, child);
121 if (request == PTRACE_PEEKUSR)
122 val = *reg_addr;
123 else
124 *reg_addr = data;
125 } else
126 rval = -EIO;
127
128 if (rval == 0 && request == PTRACE_PEEKUSR)
129 rval = put_user(val, (unsigned long *)data);
130 break;
131 /* Continue and stop at next (return from) syscall */
132 case PTRACE_SYSCALL:
133 pr_debug("PTRACE_SYSCALL\n");
134 case PTRACE_SINGLESTEP:
135 pr_debug("PTRACE_SINGLESTEP\n");
136 /* Restart after a signal. */
137 case PTRACE_CONT:
138 pr_debug("PTRACE_CONT\n");
139 rval = -EIO;
140 if (!valid_signal(data))
141 break;
142
143 if (request == PTRACE_SYSCALL)
144 set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
145 else
146 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
147
148 child->exit_code = data;
149 pr_debug("wakeup_process\n");
150 wake_up_process(child);
151 rval = 0;
152 break;
153
154 /*
155 * make the child exit. Best I can do is send it a sigkill.
156 * perhaps it should be put in the status that it wants to
157 * exit.
158 */
159 case PTRACE_KILL:
160 pr_debug("PTRACE_KILL\n");
161 rval = 0;
162 if (child->exit_state == EXIT_ZOMBIE) /* already dead */
163 break;
164 child->exit_code = SIGKILL;
165 wake_up_process(child);
166 break;
167
168 case PTRACE_DETACH: /* detach a process that was attached. */
169 pr_debug("PTRACE_DETACH\n");
170 rval = ptrace_detach(child, data);
171 break;
172 default:
173 /* rval = ptrace_request(child, request, addr, data); noMMU */
174 rval = -EIO;
175 }
176 return rval;
177}
178
179void ptrace_disable(struct task_struct *child)
180{
181 /* nothing to do */
182}
diff --git a/arch/microblaze/kernel/selfmod.c b/arch/microblaze/kernel/selfmod.c
new file mode 100644
index 000000000000..89508bdc9f3c
--- /dev/null
+++ b/arch/microblaze/kernel/selfmod.c
@@ -0,0 +1,81 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2009 PetaLogix
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
9
10#include <linux/interrupt.h>
11#include <asm/selfmod.h>
12
13#undef DEBUG
14
15#if __GNUC__ > 3
16#error GCC 4 unsupported SELFMOD. Please disable SELFMOD from menuconfig.
17#endif
18
19#define OPCODE_IMM 0xB0000000
20#define OPCODE_LWI 0xE8000000
21#define OPCODE_LWI_MASK 0xEC000000
22#define OPCODE_RTSD 0xB60F0008 /* return from func: rtsd r15, 8 */
23#define OPCODE_ADDIK 0x30000000
24#define OPCODE_ADDIK_MASK 0xFC000000
25
26#define IMM_BASE (OPCODE_IMM | (BARRIER_BASE_ADDR >> 16))
27#define LWI_BASE (OPCODE_LWI | (BARRIER_BASE_ADDR & 0x0000ff00))
28#define LWI_BASE_MASK (OPCODE_LWI_MASK | (BARRIER_BASE_ADDR & 0x0000ff00))
29#define ADDIK_BASE (OPCODE_ADDIK | (BARRIER_BASE_ADDR & 0x0000ff00))
30#define ADDIK_BASE_MASK (OPCODE_ADDIK_MASK | (BARRIER_BASE_ADDR & 0x0000ff00))
31
32#define MODIFY_INSTR { \
33 pr_debug("%s: curr instr, (%d):0x%x, next(%d):0x%x\n", \
34 __func__, i, addr[i], i + 1, addr[i + 1]); \
35 addr[i] = OPCODE_IMM + (base >> 16); \
36 /* keep instruction opcode and add only last 16bits */ \
37 addr[i + 1] = (addr[i + 1] & 0xffff00ff) + (base & 0xffff); \
38 __invalidate_icache(addr[i]); \
39 __invalidate_icache(addr[i + 1]); \
40 pr_debug("%s: hack instr, (%d):0x%x, next(%d):0x%x\n", \
41 __func__, i, addr[i], i + 1, addr[i + 1]); }
42
43/* NOTE
44 * self-modified part of code for improvement of interrupt controller
45 * save instruction in interrupt rutine
46 */
47void selfmod_function(const int *arr_fce, const unsigned int base)
48{
49 unsigned int flags, i, j, *addr = NULL;
50
51 local_irq_save(flags);
52 __disable_icache();
53
54 /* zero terminated array */
55 for (j = 0; arr_fce[j] != 0; j++) {
56 /* get start address of function */
57 addr = (unsigned int *) arr_fce[j];
58 pr_debug("%s: func(%d) at 0x%x\n",
59 __func__, j, (unsigned int) addr);
60 for (i = 0; ; i++) {
61 pr_debug("%s: instruction code at %d: 0x%x\n",
62 __func__, i, addr[i]);
63 if (addr[i] == IMM_BASE) {
64 /* detecting of lwi (0xE8) or swi (0xF8) instr
65 * I can detect both opcode with one mask */
66 if ((addr[i + 1] & LWI_BASE_MASK) == LWI_BASE) {
67 MODIFY_INSTR;
68 } else /* detection addik for ack */
69 if ((addr[i + 1] & ADDIK_BASE_MASK) ==
70 ADDIK_BASE) {
71 MODIFY_INSTR;
72 }
73 } else if (addr[i] == OPCODE_RTSD) {
74 /* return from function means end of function */
75 pr_debug("%s: end of array %d\n", __func__, i);
76 break;
77 }
78 }
79 }
80 local_irq_restore(flags);
81} /* end of self-modified code */
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
new file mode 100644
index 000000000000..eb6b41758e23
--- /dev/null
+++ b/arch/microblaze/kernel/setup.c
@@ -0,0 +1,199 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/init.h>
12#include <linux/string.h>
13#include <linux/seq_file.h>
14#include <linux/cpu.h>
15#include <linux/initrd.h>
16#include <linux/console.h>
17#include <linux/debugfs.h>
18
19#include <asm/setup.h>
20#include <asm/sections.h>
21#include <asm/page.h>
22#include <linux/io.h>
23#include <linux/bug.h>
24#include <linux/param.h>
25#include <linux/cache.h>
26#include <asm/cacheflush.h>
27#include <asm/entry.h>
28#include <asm/cpuinfo.h>
29
30#include <asm/system.h>
31#include <asm/prom.h>
32#include <asm/pgtable.h>
33
34DEFINE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */
35DEFINE_PER_CPU(unsigned int, KM); /* Kernel/user mode */
36DEFINE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */
37DEFINE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */
38DEFINE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */
39
40unsigned int boot_cpuid;
41char cmd_line[COMMAND_LINE_SIZE];
42
43void __init setup_arch(char **cmdline_p)
44{
45#ifdef CONFIG_CMDLINE_FORCE
46 strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
47 strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
48#endif
49 *cmdline_p = cmd_line;
50
51 console_verbose();
52
53 unflatten_device_tree();
54
55 /* NOTE I think that this function is not necessary to call */
56 /* irq_early_init(); */
57 setup_cpuinfo();
58
59 __invalidate_icache_all();
60 __enable_icache();
61
62 __invalidate_dcache_all();
63 __enable_dcache();
64
65 panic_timeout = 120;
66
67 setup_memory();
68
69#if defined(CONFIG_SELFMOD_INTC) || defined(CONFIG_SELFMOD_TIMER)
70 printk(KERN_NOTICE "Self modified code enable\n");
71#endif
72
73#ifdef CONFIG_VT
74#if defined(CONFIG_XILINX_CONSOLE)
75 conswitchp = &xil_con;
76#elif defined(CONFIG_DUMMY_CONSOLE)
77 conswitchp = &dummy_con;
78#endif
79#endif
80}
81
82#ifdef CONFIG_MTD_UCLINUX
83/* Handle both romfs and cramfs types, without generating unnecessary
84 code (ie no point checking for CRAMFS if it's not even enabled) */
85inline unsigned get_romfs_len(unsigned *addr)
86{
87#ifdef CONFIG_ROMFS_FS
88 if (memcmp(&addr[0], "-rom1fs-", 8) == 0) /* romfs */
89 return be32_to_cpu(addr[2]);
90#endif
91
92#ifdef CONFIG_CRAMFS
93 if (addr[0] == le32_to_cpu(0x28cd3d45)) /* cramfs */
94 return le32_to_cpu(addr[1]);
95#endif
96 return 0;
97}
98#endif /* CONFIG_MTD_UCLINUX_EBSS */
99
100void __init machine_early_init(const char *cmdline, unsigned int ram,
101 unsigned int fdt)
102{
103 unsigned long *src, *dst = (unsigned long *)0x0;
104
105/* clearing bss section */
106 memset(__bss_start, 0, __bss_stop-__bss_start);
107 memset(_ssbss, 0, _esbss-_ssbss);
108
109 /*
110 * Copy command line passed from bootloader, or use default
111 * if none provided, or forced
112 */
113#ifndef CONFIG_CMDLINE_BOOL
114 if (cmdline && cmdline[0] != '\0')
115 strlcpy(cmd_line, cmdline, COMMAND_LINE_SIZE);
116#endif
117
118/* initialize device tree for usage in early_printk */
119 early_init_devtree((void *)_fdt_start);
120
121#ifdef CONFIG_EARLY_PRINTK
122 setup_early_printk(NULL);
123#endif
124
125 early_printk("Ramdisk addr 0x%08x, FDT 0x%08x\n", ram, fdt);
126 printk(KERN_NOTICE "Found FDT at 0x%08x\n", fdt);
127
128#ifdef CONFIG_MTD_UCLINUX
129 {
130 int size;
131 unsigned int romfs_base;
132 romfs_base = (ram ? ram : (unsigned int)&__init_end);
133 /* if CONFIG_MTD_UCLINUX_EBSS is defined, assume ROMFS is at the
134 * end of kernel, which is ROMFS_LOCATION defined above. */
135 size = PAGE_ALIGN(get_romfs_len((unsigned *)romfs_base));
136 early_printk("Found romfs @ 0x%08x (0x%08x)\n",
137 romfs_base, size);
138 early_printk("#### klimit %p ####\n", klimit);
139 BUG_ON(size < 0); /* What else can we do? */
140
141 /* Use memmove to handle likely case of memory overlap */
142 early_printk("Moving 0x%08x bytes from 0x%08x to 0x%08x\n",
143 size, romfs_base, (unsigned)&_ebss);
144 memmove(&_ebss, (int *)romfs_base, size);
145
146 /* update klimit */
147 klimit += PAGE_ALIGN(size);
148 early_printk("New klimit: 0x%08x\n", (unsigned)klimit);
149 }
150#endif
151
152 for (src = __ivt_start; src < __ivt_end; src++, dst++)
153 *dst = *src;
154
155 /* Initialize global data */
156 per_cpu(KM, 0) = 0x1; /* We start in kernel mode */
157 per_cpu(CURRENT_SAVE, 0) = (unsigned long)current;
158}
159
160#ifdef CONFIG_DEBUG_FS
161struct dentry *of_debugfs_root;
162
163static int microblaze_debugfs_init(void)
164{
165 of_debugfs_root = debugfs_create_dir("microblaze", NULL);
166
167 return of_debugfs_root == NULL;
168}
169arch_initcall(microblaze_debugfs_init);
170#endif
171
172void machine_restart(char *cmd)
173{
174 printk(KERN_NOTICE "Machine restart...\n");
175 dump_stack();
176 while (1)
177 ;
178}
179
180void machine_shutdown(void)
181{
182 printk(KERN_NOTICE "Machine shutdown...\n");
183 while (1)
184 ;
185}
186
187void machine_halt(void)
188{
189 printk(KERN_NOTICE "Machine halt...\n");
190 while (1)
191 ;
192}
193
194void machine_power_off(void)
195{
196 printk(KERN_NOTICE "Machine power off...\n");
197 while (1)
198 ;
199}
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
new file mode 100644
index 000000000000..ff347b98863a
--- /dev/null
+++ b/arch/microblaze/kernel/signal.c
@@ -0,0 +1,538 @@
1/*
2 * Signal handling
3 *
4 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
5 * Copyright (C) 2008-2009 PetaLogix
6 * Copyright (C) 2003,2004 John Williams <jwilliams@itee.uq.edu.au>
7 * Copyright (C) 2001 NEC Corporation
8 * Copyright (C) 2001 Miles Bader <miles@gnu.org>
9 * Copyright (C) 1999,2000 Niibe Yutaka & Kaz Kojima
10 * Copyright (C) 1991,1992 Linus Torvalds
11 *
12 * 1997-11-28 Modified for POSIX.1b signals by Richard Henderson
13 *
14 * This file was was derived from the sh version, arch/sh/kernel/signal.c
15 *
16 * This file is subject to the terms and conditions of the GNU General
17 * Public License. See the file COPYING in the main directory of this
18 * archive for more details.
19 */
20
21#include <linux/sched.h>
22#include <linux/mm.h>
23#include <linux/smp.h>
24#include <linux/smp_lock.h>
25#include <linux/kernel.h>
26#include <linux/signal.h>
27#include <linux/errno.h>
28#include <linux/wait.h>
29#include <linux/ptrace.h>
30#include <linux/unistd.h>
31#include <linux/stddef.h>
32#include <linux/personality.h>
33#include <linux/percpu.h>
34#include <linux/linkage.h>
35#include <asm/entry.h>
36#include <asm/ucontext.h>
37#include <linux/uaccess.h>
38#include <asm/pgtable.h>
39#include <asm/pgalloc.h>
40#include <linux/signal.h>
41#include <linux/syscalls.h>
42#include <asm/cacheflush.h>
43#include <asm/syscalls.h>
44
45#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
46
47asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_sycall);
48
49/*
50 * Atomically swap in the new signal mask, and wait for a signal.
51 */
52asmlinkage int
53sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs)
54{
55 sigset_t saveset;
56
57 mask &= _BLOCKABLE;
58 spin_lock_irq(&current->sighand->siglock);
59 saveset = current->blocked;
60 siginitset(&current->blocked, mask);
61 recalc_sigpending();
62 spin_unlock_irq(&current->sighand->siglock);
63
64 regs->r3 = -EINTR;
65 while (1) {
66 current->state = TASK_INTERRUPTIBLE;
67 schedule();
68 if (do_signal(regs, &saveset, 1))
69 return -EINTR;
70 }
71}
72
73asmlinkage int
74sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
75 struct pt_regs *regs)
76{
77 sigset_t saveset, newset;
78
79 /* XXX: Don't preclude handling different sized sigset_t's. */
80 if (sigsetsize != sizeof(sigset_t))
81 return -EINVAL;
82
83 if (copy_from_user(&newset, unewset, sizeof(newset)))
84 return -EFAULT;
85 sigdelsetmask(&newset, ~_BLOCKABLE);
86 spin_lock_irq(&current->sighand->siglock);
87 saveset = current->blocked;
88 current->blocked = newset;
89 recalc_sigpending();
90 spin_unlock_irq(&current->sighand->siglock);
91
92 regs->r3 = -EINTR;
93 while (1) {
94 current->state = TASK_INTERRUPTIBLE;
95 schedule();
96 if (do_signal(regs, &saveset, 1))
97 return -EINTR;
98 }
99}
100
101asmlinkage int
102sys_sigaction(int sig, const struct old_sigaction *act,
103 struct old_sigaction *oact)
104{
105 struct k_sigaction new_ka, old_ka;
106 int ret;
107
108 if (act) {
109 old_sigset_t mask;
110 if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
111 __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
112 __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
113 return -EFAULT;
114 __get_user(new_ka.sa.sa_flags, &act->sa_flags);
115 __get_user(mask, &act->sa_mask);
116 siginitset(&new_ka.sa.sa_mask, mask);
117 }
118
119 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
120
121 if (!ret && oact) {
122 if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
123 __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
124 __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
125 return -EFAULT;
126 __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
127 __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
128 }
129
130 return ret;
131}
132
133asmlinkage int
134sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
135 struct pt_regs *regs)
136{
137 return do_sigaltstack(uss, uoss, regs->r1);
138}
139
140/*
141 * Do a signal return; undo the signal stack.
142 */
143
144struct sigframe {
145 struct sigcontext sc;
146 unsigned long extramask[_NSIG_WORDS-1];
147 unsigned long tramp[2]; /* signal trampoline */
148};
149
150struct rt_sigframe {
151 struct siginfo info;
152 struct ucontext uc;
153 unsigned long tramp[2]; /* signal trampoline */
154};
155
156static int
157restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc, int *rval_p)
158{
159 unsigned int err = 0;
160
161#define COPY(x) {err |= __get_user(regs->x, &sc->regs.x); }
162 COPY(r0);
163 COPY(r1);
164 COPY(r2); COPY(r3); COPY(r4); COPY(r5);
165 COPY(r6); COPY(r7); COPY(r8); COPY(r9);
166 COPY(r10); COPY(r11); COPY(r12); COPY(r13);
167 COPY(r14); COPY(r15); COPY(r16); COPY(r17);
168 COPY(r18); COPY(r19); COPY(r20); COPY(r21);
169 COPY(r22); COPY(r23); COPY(r24); COPY(r25);
170 COPY(r26); COPY(r27); COPY(r28); COPY(r29);
171 COPY(r30); COPY(r31);
172 COPY(pc); COPY(ear); COPY(esr); COPY(fsr);
173#undef COPY
174
175 *rval_p = regs->r3;
176
177 return err;
178}
179
180asmlinkage int sys_sigreturn(struct pt_regs *regs)
181{
182 struct sigframe *frame = (struct sigframe *)regs->r1;
183 sigset_t set;
184 int rval;
185
186 if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
187 goto badframe;
188
189 if (__get_user(set.sig[0], &frame->sc.oldmask)
190 || (_NSIG_WORDS > 1
191 && __copy_from_user(&set.sig[1], &frame->extramask,
192 sizeof(frame->extramask))))
193 goto badframe;
194
195 sigdelsetmask(&set, ~_BLOCKABLE);
196
197 spin_lock_irq(&current->sighand->siglock);
198 current->blocked = set;
199 recalc_sigpending();
200 spin_unlock_irq(&current->sighand->siglock);
201
202 if (restore_sigcontext(regs, &frame->sc, &rval))
203 goto badframe;
204 return rval;
205
206badframe:
207 force_sig(SIGSEGV, current);
208 return 0;
209}
210
211asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
212{
213 struct rt_sigframe *frame = (struct rt_sigframe *)regs->r1;
214 sigset_t set;
215 stack_t st;
216 int rval;
217
218 if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
219 goto badframe;
220
221 if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
222 goto badframe;
223
224 sigdelsetmask(&set, ~_BLOCKABLE);
225 spin_lock_irq(&current->sighand->siglock);
226 current->blocked = set;
227 recalc_sigpending();
228 spin_unlock_irq(&current->sighand->siglock);
229
230 if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &rval))
231 goto badframe;
232
233 if (__copy_from_user((void *)&st, &frame->uc.uc_stack, sizeof(st)))
234 goto badframe;
235 /* It is more difficult to avoid calling this function than to
236 call it and ignore errors. */
237 do_sigaltstack(&st, NULL, regs->r1);
238
239 return rval;
240
241badframe:
242 force_sig(SIGSEGV, current);
243 return 0;
244}
245
246/*
247 * Set up a signal frame.
248 */
249
250static int
251setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
252 unsigned long mask)
253{
254 int err = 0;
255
256#define COPY(x) {err |= __put_user(regs->x, &sc->regs.x); }
257 COPY(r0);
258 COPY(r1);
259 COPY(r2); COPY(r3); COPY(r4); COPY(r5);
260 COPY(r6); COPY(r7); COPY(r8); COPY(r9);
261 COPY(r10); COPY(r11); COPY(r12); COPY(r13);
262 COPY(r14); COPY(r15); COPY(r16); COPY(r17);
263 COPY(r18); COPY(r19); COPY(r20); COPY(r21);
264 COPY(r22); COPY(r23); COPY(r24); COPY(r25);
265 COPY(r26); COPY(r27); COPY(r28); COPY(r29);
266 COPY(r30); COPY(r31);
267 COPY(pc); COPY(ear); COPY(esr); COPY(fsr);
268#undef COPY
269
270 err |= __put_user(mask, &sc->oldmask);
271
272 return err;
273}
274
275/*
276 * Determine which stack to use..
277 */
278static inline void *
279get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
280{
281 /* Default to using normal stack */
282 unsigned long sp = regs->r1;
283
284 if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && !on_sig_stack(sp))
285 sp = current->sas_ss_sp + current->sas_ss_size;
286
287 return (void *)((sp - frame_size) & -8UL);
288}
289
290static void setup_frame(int sig, struct k_sigaction *ka,
291 sigset_t *set, struct pt_regs *regs)
292{
293 struct sigframe *frame;
294 int err = 0;
295 int signal;
296
297 frame = get_sigframe(ka, regs, sizeof(*frame));
298
299 if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
300 goto give_sigsegv;
301
302 signal = current_thread_info()->exec_domain
303 && current_thread_info()->exec_domain->signal_invmap
304 && sig < 32
305 ? current_thread_info()->exec_domain->signal_invmap[sig]
306 : sig;
307
308 err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
309
310 if (_NSIG_WORDS > 1) {
311 err |= __copy_to_user(frame->extramask, &set->sig[1],
312 sizeof(frame->extramask));
313 }
314
315 /* Set up to return from userspace. If provided, use a stub
316 already in userspace. */
317 /* minus 8 is offset to cater for "rtsd r15,8" offset */
318 if (ka->sa.sa_flags & SA_RESTORER) {
319 regs->r15 = ((unsigned long)ka->sa.sa_restorer)-8;
320 } else {
321 /* Note, these encodings are _big endian_! */
322
323 /* addi r12, r0, __NR_sigreturn */
324 err |= __put_user(0x31800000 | __NR_sigreturn ,
325 frame->tramp + 0);
326 /* brki r14, 0x8 */
327 err |= __put_user(0xb9cc0008, frame->tramp + 1);
328
329 /* Return from sighandler will jump to the tramp.
330 Negative 8 offset because return is rtsd r15, 8 */
331 regs->r15 = ((unsigned long)frame->tramp)-8;
332
333 __invalidate_cache_sigtramp((unsigned long)frame->tramp);
334 }
335
336 if (err)
337 goto give_sigsegv;
338
339 /* Set up registers for signal handler */
340 regs->r1 = (unsigned long) frame;
341 /* Signal handler args: */
342 regs->r5 = signal; /* Arg 0: signum */
343 regs->r6 = (unsigned long) &frame->sc; /* arg 1: sigcontext */
344
345 /* Offset of 4 to handle microblaze rtid r14, 0 */
346 regs->pc = (unsigned long)ka->sa.sa_handler;
347
348 set_fs(USER_DS);
349
350#ifdef DEBUG_SIG
351 printk(KERN_INFO "SIG deliver (%s:%d): sp=%p pc=%08lx\n",
352 current->comm, current->pid, frame, regs->pc);
353#endif
354
355 return;
356
357give_sigsegv:
358 if (sig == SIGSEGV)
359 ka->sa.sa_handler = SIG_DFL;
360 force_sig(SIGSEGV, current);
361}
362
363static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
364 sigset_t *set, struct pt_regs *regs)
365{
366 struct rt_sigframe *frame;
367 int err = 0;
368 int signal;
369
370 frame = get_sigframe(ka, regs, sizeof(*frame));
371
372 if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
373 goto give_sigsegv;
374
375 signal = current_thread_info()->exec_domain
376 && current_thread_info()->exec_domain->signal_invmap
377 && sig < 32
378 ? current_thread_info()->exec_domain->signal_invmap[sig]
379 : sig;
380
381 err |= copy_siginfo_to_user(&frame->info, info);
382
383 /* Create the ucontext. */
384 err |= __put_user(0, &frame->uc.uc_flags);
385 err |= __put_user(0, &frame->uc.uc_link);
386 err |= __put_user((void *)current->sas_ss_sp,
387 &frame->uc.uc_stack.ss_sp);
388 err |= __put_user(sas_ss_flags(regs->r1),
389 &frame->uc.uc_stack.ss_flags);
390 err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
391 err |= setup_sigcontext(&frame->uc.uc_mcontext,
392 regs, set->sig[0]);
393 err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
394
395 /* Set up to return from userspace. If provided, use a stub
396 already in userspace. */
397 /* minus 8 is offset to cater for "rtsd r15,8" */
398 if (ka->sa.sa_flags & SA_RESTORER) {
399 regs->r15 = ((unsigned long)ka->sa.sa_restorer)-8;
400 } else {
401 /* addi r12, r0, __NR_sigreturn */
402 err |= __put_user(0x31800000 | __NR_rt_sigreturn ,
403 frame->tramp + 0);
404 /* brki r14, 0x8 */
405 err |= __put_user(0xb9cc0008, frame->tramp + 1);
406
407 /* Return from sighandler will jump to the tramp.
408 Negative 8 offset because return is rtsd r15, 8 */
409 regs->r15 = ((unsigned long)frame->tramp)-8;
410
411 __invalidate_cache_sigtramp((unsigned long)frame->tramp);
412 }
413
414 if (err)
415 goto give_sigsegv;
416
417 /* Set up registers for signal handler */
418 regs->r1 = (unsigned long) frame;
419 /* Signal handler args: */
420 regs->r5 = signal; /* arg 0: signum */
421 regs->r6 = (unsigned long) &frame->info; /* arg 1: siginfo */
422 regs->r7 = (unsigned long) &frame->uc; /* arg2: ucontext */
423 /* Offset to handle microblaze rtid r14, 0 */
424 regs->pc = (unsigned long)ka->sa.sa_handler;
425
426 set_fs(USER_DS);
427
428#ifdef DEBUG_SIG
429 printk(KERN_INFO "SIG deliver (%s:%d): sp=%p pc=%08lx\n",
430 current->comm, current->pid, frame, regs->pc);
431#endif
432
433 return;
434
435give_sigsegv:
436 if (sig == SIGSEGV)
437 ka->sa.sa_handler = SIG_DFL;
438 force_sig(SIGSEGV, current);
439}
440
441/* Handle restarting system calls */
442static inline void
443handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
444{
445 switch (regs->r3) {
446 case -ERESTART_RESTARTBLOCK:
447 case -ERESTARTNOHAND:
448 if (!has_handler)
449 goto do_restart;
450 regs->r3 = -EINTR;
451 break;
452 case -ERESTARTSYS:
453 if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) {
454 regs->r3 = -EINTR;
455 break;
456 }
457 /* fallthrough */
458 case -ERESTARTNOINTR:
459do_restart:
460 /* offset of 4 bytes to re-execute trap (brki) instruction */
461 regs->pc -= 4;
462 break;
463 }
464}
465
466/*
467 * OK, we're invoking a handler
468 */
469
470static void
471handle_signal(unsigned long sig, struct k_sigaction *ka,
472 siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
473{
474 /* Set up the stack frame */
475 if (ka->sa.sa_flags & SA_SIGINFO)
476 setup_rt_frame(sig, ka, info, oldset, regs);
477 else
478 setup_frame(sig, ka, oldset, regs);
479
480 if (ka->sa.sa_flags & SA_ONESHOT)
481 ka->sa.sa_handler = SIG_DFL;
482
483 if (!(ka->sa.sa_flags & SA_NODEFER)) {
484 spin_lock_irq(&current->sighand->siglock);
485 sigorsets(&current->blocked,
486 &current->blocked, &ka->sa.sa_mask);
487 sigaddset(&current->blocked, sig);
488 recalc_sigpending();
489 spin_unlock_irq(&current->sighand->siglock);
490 }
491}
492
493/*
494 * Note that 'init' is a special process: it doesn't get signals it doesn't
495 * want to handle. Thus you cannot kill init even with a SIGKILL even by
496 * mistake.
497 *
498 * Note that we go through the signals twice: once to check the signals that
499 * the kernel can handle, and then we build all the user-level signal handling
500 * stack-frames in one go after that.
501 */
502int do_signal(struct pt_regs *regs, sigset_t *oldset, int in_syscall)
503{
504 siginfo_t info;
505 int signr;
506 struct k_sigaction ka;
507#ifdef DEBUG_SIG
508 printk(KERN_INFO "do signal: %p %p %d\n", regs, oldset, in_syscall);
509 printk(KERN_INFO "do signal2: %lx %lx %ld [%lx]\n", regs->pc, regs->r1,
510 regs->r12, current_thread_info()->flags);
511#endif
512 /*
513 * We want the common case to go fast, which
514 * is why we may in certain cases get here from
515 * kernel mode. Just return without doing anything
516 * if so.
517 */
518 if (kernel_mode(regs))
519 return 1;
520
521 if (!oldset)
522 oldset = &current->blocked;
523
524 signr = get_signal_to_deliver(&info, &ka, regs, NULL);
525 if (signr > 0) {
526 /* Whee! Actually deliver the signal. */
527 if (in_syscall)
528 handle_restart(regs, &ka, 1);
529 handle_signal(signr, &ka, &info, oldset, regs);
530 return 1;
531 }
532
533 if (in_syscall)
534 handle_restart(regs, NULL, 0);
535
536 /* Did we come from a system call? */
537 return 0;
538}
diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
new file mode 100644
index 000000000000..d90b548fb1bb
--- /dev/null
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -0,0 +1,227 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
5 *
6 * Copyright (C) 2006 Atmark Techno, Inc.
7 * Yasushi SHOJI <yashi@atmark-techno.com>
8 * Tetsuya OHKAWA <tetsuya@atmark-techno.com>
9 *
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file "COPYING" in the main directory of this archive
12 * for more details.
13 */
14
15#include <linux/errno.h>
16#include <linux/mm.h>
17#include <linux/smp.h>
18#include <linux/smp_lock.h>
19#include <linux/syscalls.h>
20#include <linux/sem.h>
21#include <linux/msg.h>
22#include <linux/shm.h>
23#include <linux/stat.h>
24#include <linux/mman.h>
25#include <linux/sys.h>
26#include <linux/ipc.h>
27#include <linux/utsname.h>
28#include <linux/file.h>
29#include <linux/module.h>
30#include <linux/err.h>
31#include <linux/fs.h>
32#include <linux/ipc.h>
33#include <linux/semaphore.h>
34#include <linux/syscalls.h>
35#include <linux/uaccess.h>
36#include <linux/unistd.h>
37
38#include <asm/syscalls.h>
39/*
40 * sys_ipc() is the de-multiplexer for the SysV IPC calls..
41 *
42 * This is really horribly ugly. This will be remove with new toolchain.
43 */
44asmlinkage int
45sys_ipc(uint call, int first, int second, int third, void *ptr, long fifth)
46{
47 int version, ret;
48
49 version = call >> 16; /* hack for backward compatibility */
50 call &= 0xffff;
51
52 ret = -EINVAL;
53 switch (call) {
54 case SEMOP:
55 ret = sys_semop(first, (struct sembuf *)ptr, second);
56 break;
57 case SEMGET:
58 ret = sys_semget(first, second, third);
59 break;
60 case SEMCTL:
61 {
62 union semun fourth;
63
64 if (!ptr)
65 break;
66 ret = (access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
67 || (get_user(fourth.__pad, (void **)ptr)) ;
68 if (ret)
69 break;
70 ret = sys_semctl(first, second, third, fourth);
71 break;
72 }
73 case MSGSND:
74 ret = sys_msgsnd(first, (struct msgbuf *) ptr, second, third);
75 break;
76 case MSGRCV:
77 switch (version) {
78 case 0: {
79 struct ipc_kludge tmp;
80
81 if (!ptr)
82 break;
83 ret = (access_ok(VERIFY_READ, ptr, sizeof(tmp))
84 ? 0 : -EFAULT) || copy_from_user(&tmp,
85 (struct ipc_kludge *) ptr, sizeof(tmp));
86 if (ret)
87 break;
88 ret = sys_msgrcv(first, tmp.msgp, second, tmp.msgtyp,
89 third);
90 break;
91 }
92 default:
93 ret = sys_msgrcv(first, (struct msgbuf *) ptr,
94 second, fifth, third);
95 break;
96 }
97 break;
98 case MSGGET:
99 ret = sys_msgget((key_t) first, second);
100 break;
101 case MSGCTL:
102 ret = sys_msgctl(first, second, (struct msqid_ds *) ptr);
103 break;
104 case SHMAT:
105 switch (version) {
106 default: {
107 ulong raddr;
108 ret = access_ok(VERIFY_WRITE, (ulong *) third,
109 sizeof(ulong)) ? 0 : -EFAULT;
110 if (ret)
111 break;
112 ret = do_shmat(first, (char *) ptr, second, &raddr);
113 if (ret)
114 break;
115 ret = put_user(raddr, (ulong *) third);
116 break;
117 }
118 case 1: /* iBCS2 emulator entry point */
119 if (!segment_eq(get_fs(), get_ds()))
120 break;
121 ret = do_shmat(first, (char *) ptr, second,
122 (ulong *) third);
123 break;
124 }
125 break;
126 case SHMDT:
127 ret = sys_shmdt((char *)ptr);
128 break;
129 case SHMGET:
130 ret = sys_shmget(first, second, third);
131 break;
132 case SHMCTL:
133 ret = sys_shmctl(first, second, (struct shmid_ds *) ptr);
134 break;
135 }
136 return -EINVAL;
137}
138
139asmlinkage int sys_vfork(struct pt_regs *regs)
140{
141 return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->r1,
142 regs, 0, NULL, NULL);
143}
144
145asmlinkage int sys_clone(int flags, unsigned long stack, struct pt_regs *regs)
146{
147 if (!stack)
148 stack = regs->r1;
149 return do_fork(flags, stack, regs, 0, NULL, NULL);
150}
151
152asmlinkage int sys_execve(char __user *filenamei, char __user *__user *argv,
153 char __user *__user *envp, struct pt_regs *regs)
154{
155 int error;
156 char *filename;
157
158 filename = getname(filenamei);
159 error = PTR_ERR(filename);
160 if (IS_ERR(filename))
161 goto out;
162 error = do_execve(filename, argv, envp, regs);
163 putname(filename);
164out:
165 return error;
166}
167
168asmlinkage unsigned long
169sys_mmap2(unsigned long addr, size_t len,
170 unsigned long prot, unsigned long flags,
171 unsigned long fd, unsigned long pgoff)
172{
173 struct file *file = NULL;
174 int ret = -EBADF;
175
176 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
177 if (!(flags & MAP_ANONYMOUS)) {
178 file = fget(fd);
179 if (!file) {
180 printk(KERN_INFO "no fd in mmap\r\n");
181 goto out;
182 }
183 }
184
185 down_write(&current->mm->mmap_sem);
186 ret = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
187 up_write(&current->mm->mmap_sem);
188 if (file)
189 fput(file);
190out:
191 return ret;
192}
193
194asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
195 unsigned long prot, unsigned long flags,
196 unsigned long fd, off_t offset)
197{
198 int err = -EINVAL;
199
200 if (offset & ~PAGE_MASK) {
201 printk(KERN_INFO "no pagemask in mmap\r\n");
202 goto out;
203 }
204
205 err = sys_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
206out:
207 return err;
208}
209
210/*
211 * Do a system call from kernel instead of calling sys_execve so we
212 * end up with proper pt_regs.
213 */
214int kernel_execve(const char *filename, char *const argv[], char *const envp[])
215{
216 register const char *__a __asm__("r5") = filename;
217 register const void *__b __asm__("r6") = argv;
218 register const void *__c __asm__("r7") = envp;
219 register unsigned long __syscall __asm__("r12") = __NR_execve;
220 register unsigned long __ret __asm__("r3");
221 __asm__ __volatile__ ("brki r14, 0x8"
222 : "=r" (__ret), "=r" (__syscall)
223 : "1" (__syscall), "r" (__a), "r" (__b), "r" (__c)
224 : "r4", "r8", "r9",
225 "r10", "r11", "r14", "cc", "memory");
226 return __ret;
227}
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
new file mode 100644
index 000000000000..529b0dbf4fe9
--- /dev/null
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -0,0 +1,365 @@
1ENTRY(sys_call_table)
2 .long sys_restart_syscall /* 0 - old "setup()" system call,
3 * used for restarting */
4 .long sys_exit
5 .long sys_ni_syscall /* was fork */
6 .long sys_read
7 .long sys_write
8 .long sys_open /* 5 */
9 .long sys_close
10 .long sys_waitpid
11 .long sys_creat
12 .long sys_link
13 .long sys_unlink /* 10 */
14 .long sys_execve_wrapper
15 .long sys_chdir
16 .long sys_time
17 .long sys_mknod
18 .long sys_chmod /* 15 */
19 .long sys_lchown
20 .long sys_ni_syscall /* old break syscall holder */
21 .long sys_ni_syscall /* old stat */
22 .long sys_lseek
23 .long sys_getpid /* 20 */
24 .long sys_mount
25 .long sys_oldumount
26 .long sys_setuid
27 .long sys_getuid
28 .long sys_stime /* 25 */
29 .long sys_ptrace
30 .long sys_alarm
31 .long sys_ni_syscall /* oldfstat */
32 .long sys_pause
33 .long sys_utime /* 30 */
34 .long sys_ni_syscall /* old stty syscall holder */
35 .long sys_ni_syscall /* old gtty syscall holder */
36 .long sys_access
37 .long sys_nice
38 .long sys_ni_syscall /* 35 - old ftime syscall holder */
39 .long sys_sync
40 .long sys_kill
41 .long sys_rename
42 .long sys_mkdir
43 .long sys_rmdir /* 40 */
44 .long sys_dup
45 .long sys_pipe
46 .long sys_times
47 .long sys_ni_syscall /* old prof syscall holder */
48 .long sys_brk /* 45 */
49 .long sys_setgid
50 .long sys_getgid
51 .long sys_signal
52 .long sys_geteuid
53 .long sys_getegid /* 50 */
54 .long sys_acct
55 .long sys_umount /* recycled never used phys() */
56 .long sys_ni_syscall /* old lock syscall holder */
57 .long sys_ioctl
58 .long sys_fcntl /* 55 */
59 .long sys_ni_syscall /* old mpx syscall holder */
60 .long sys_setpgid
61 .long sys_ni_syscall /* old ulimit syscall holder */
62 .long sys_ni_syscall /* olduname */
63 .long sys_umask /* 60 */
64 .long sys_chroot
65 .long sys_ustat
66 .long sys_dup2
67 .long sys_getppid
68 .long sys_getpgrp /* 65 */
69 .long sys_setsid
70 .long sys_sigaction
71 .long sys_sgetmask
72 .long sys_ssetmask
73 .long sys_setreuid /* 70 */
74 .long sys_setregid
75 .long sys_sigsuspend_wrapper
76 .long sys_sigpending
77 .long sys_sethostname
78 .long sys_setrlimit /* 75 */
79 .long sys_ni_syscall /* old_getrlimit */
80 .long sys_getrusage
81 .long sys_gettimeofday
82 .long sys_settimeofday
83 .long sys_getgroups /* 80 */
84 .long sys_setgroups
85 .long sys_ni_syscall /* old_select */
86 .long sys_symlink
87 .long sys_ni_syscall /* oldlstat */
88 .long sys_readlink /* 85 */
89 .long sys_uselib
90 .long sys_swapon
91 .long sys_reboot
92 .long sys_ni_syscall /* old_readdir */
93 .long sys_mmap /* 90 */ /* old_mmap */
94 .long sys_munmap
95 .long sys_truncate
96 .long sys_ftruncate
97 .long sys_fchmod
98 .long sys_fchown /* 95 */
99 .long sys_getpriority
100 .long sys_setpriority
101 .long sys_ni_syscall /* old profil syscall holder */
102 .long sys_statfs
103 .long sys_fstatfs /* 100 */
104 .long sys_ni_syscall /* ioperm */
105 .long sys_socketcall
106 .long sys_syslog /* operation with system console */
107 .long sys_setitimer
108 .long sys_getitimer /* 105 */
109 .long sys_newstat
110 .long sys_newlstat
111 .long sys_newfstat
112 .long sys_ni_syscall /* uname */
113 .long sys_ni_syscall /* 110 */ /* iopl */
114 .long sys_vhangup
115 .long sys_ni_syscall /* old "idle" system call */
116 .long sys_ni_syscall /* old sys_vm86old */
117 .long sys_wait4
118 .long sys_swapoff /* 115 */
119 .long sys_sysinfo
120 .long sys_ipc
121 .long sys_fsync
122 .long sys_sigreturn_wrapper
123 .long sys_clone_wrapper /* 120 */
124 .long sys_setdomainname
125 .long sys_newuname
126 .long sys_ni_syscall /* modify_ldt */
127 .long sys_adjtimex
128 .long sys_mprotect /* 125: sys_mprotect */
129 .long sys_sigprocmask
130 .long sys_ni_syscall /* old "create_module" */
131 .long sys_init_module
132 .long sys_delete_module
133 .long sys_ni_syscall /* 130: old "get_kernel_syms" */
134 .long sys_quotactl
135 .long sys_getpgid
136 .long sys_fchdir
137 .long sys_bdflush
138 .long sys_sysfs /* 135 */
139 .long sys_personality
140 .long sys_ni_syscall /* reserved for afs_syscall */
141 .long sys_setfsuid
142 .long sys_setfsgid
143 .long sys_llseek /* 140 */
144 .long sys_getdents
145 .long sys_select
146 .long sys_flock
147 .long sys_msync
148 .long sys_readv /* 145 */
149 .long sys_writev
150 .long sys_getsid
151 .long sys_fdatasync
152 .long sys_sysctl
153 .long sys_mlock /* 150: sys_mlock */
154 .long sys_munlock
155 .long sys_mlockall
156 .long sys_munlockall
157 .long sys_sched_setparam
158 .long sys_sched_getparam /* 155 */
159 .long sys_sched_setscheduler
160 .long sys_sched_getscheduler
161 .long sys_sched_yield
162 .long sys_sched_get_priority_max
163 .long sys_sched_get_priority_min /* 160 */
164 .long sys_sched_rr_get_interval
165 .long sys_nanosleep
166 .long sys_mremap
167 .long sys_setresuid
168 .long sys_getresuid /* 165 */
169 .long sys_ni_syscall /* sys_vm86 */
170 .long sys_ni_syscall /* Old sys_query_module */
171 .long sys_poll
172 .long sys_nfsservctl
173 .long sys_setresgid /* 170 */
174 .long sys_getresgid
175 .long sys_prctl
176 .long sys_rt_sigreturn_wrapper
177 .long sys_rt_sigaction
178 .long sys_rt_sigprocmask /* 175 */
179 .long sys_rt_sigpending
180 .long sys_rt_sigtimedwait
181 .long sys_rt_sigqueueinfo
182 .long sys_rt_sigsuspend_wrapper
183 .long sys_pread64 /* 180 */
184 .long sys_pwrite64
185 .long sys_chown
186 .long sys_getcwd
187 .long sys_capget
188 .long sys_capset /* 185 */
189 .long sys_ni_syscall /* sigaltstack */
190 .long sys_sendfile
191 .long sys_ni_syscall /* reserved for streams1 */
192 .long sys_ni_syscall /* reserved for streams2 */
193 .long sys_vfork_wrapper /* 190 */
194 .long sys_getrlimit
195 .long sys_mmap2 /* mmap2 */
196 .long sys_truncate64
197 .long sys_ftruncate64
198 .long sys_stat64 /* 195 */
199 .long sys_lstat64
200 .long sys_fstat64
201 .long sys_lchown
202 .long sys_getuid
203 .long sys_getgid /* 200 */
204 .long sys_geteuid
205 .long sys_getegid
206 .long sys_setreuid
207 .long sys_setregid
208 .long sys_getgroups /* 205 */
209 .long sys_setgroups
210 .long sys_fchown
211 .long sys_setresuid
212 .long sys_getresuid
213 .long sys_setresgid /* 210 */
214 .long sys_getresgid
215 .long sys_chown
216 .long sys_setuid
217 .long sys_setgid
218 .long sys_setfsuid /* 215 */
219 .long sys_setfsgid
220 .long sys_pivot_root
221 .long sys_mincore
222 .long sys_madvise
223 .long sys_getdents64 /* 220 */
224 .long sys_fcntl64
225 .long sys_ni_syscall /* reserved for TUX */
226 .long sys_ni_syscall
227 .long sys_gettid
228 .long sys_readahead /* 225 */
229 .long sys_setxattr
230 .long sys_lsetxattr
231 .long sys_fsetxattr
232 .long sys_getxattr
233 .long sys_lgetxattr /* 230 */
234 .long sys_fgetxattr
235 .long sys_listxattr
236 .long sys_llistxattr
237 .long sys_flistxattr
238 .long sys_removexattr /* 235 */
239 .long sys_lremovexattr
240 .long sys_fremovexattr
241 .long sys_tkill
242 .long sys_sendfile64
243 .long sys_futex /* 240 */
244 .long sys_sched_setaffinity
245 .long sys_sched_getaffinity
246 .long sys_ni_syscall /* set_thread_area */
247 .long sys_ni_syscall /* get_thread_area */
248 .long sys_io_setup /* 245 */
249 .long sys_io_destroy
250 .long sys_io_getevents
251 .long sys_io_submit
252 .long sys_io_cancel
253 .long sys_fadvise64 /* 250 */
254 .long sys_ni_syscall
255 .long sys_exit_group
256 .long sys_lookup_dcookie
257 .long sys_epoll_create
258 .long sys_epoll_ctl /* 255 */
259 .long sys_epoll_wait
260 .long sys_remap_file_pages
261 .long sys_set_tid_address
262 .long sys_timer_create
263 .long sys_timer_settime /* 260 */
264 .long sys_timer_gettime
265 .long sys_timer_getoverrun
266 .long sys_timer_delete
267 .long sys_clock_settime
268 .long sys_clock_gettime /* 265 */
269 .long sys_clock_getres
270 .long sys_clock_nanosleep
271 .long sys_statfs64
272 .long sys_fstatfs64
273 .long sys_tgkill /* 270 */
274 .long sys_utimes
275 .long sys_fadvise64_64
276 .long sys_ni_syscall /* sys_vserver */
277 .long sys_mbind
278 .long sys_get_mempolicy
279 .long sys_set_mempolicy
280 .long sys_mq_open
281 .long sys_mq_unlink
282 .long sys_mq_timedsend
283 .long sys_mq_timedreceive /* 280 */
284 .long sys_mq_notify
285 .long sys_mq_getsetattr
286 .long sys_kexec_load
287 .long sys_waitid
288 .long sys_ni_syscall /* 285 */ /* available */
289 .long sys_add_key
290 .long sys_request_key
291 .long sys_keyctl
292 .long sys_ioprio_set
293 .long sys_ioprio_get /* 290 */
294 .long sys_inotify_init
295 .long sys_inotify_add_watch
296 .long sys_inotify_rm_watch
297 .long sys_ni_syscall /* sys_migrate_pages */
298 .long sys_openat /* 295 */
299 .long sys_mkdirat
300 .long sys_mknodat
301 .long sys_fchownat
302 .long sys_ni_syscall
303 .long sys_fstatat64 /* 300 */
304 .long sys_unlinkat
305 .long sys_renameat
306 .long sys_linkat
307 .long sys_symlinkat
308 .long sys_readlinkat /* 305 */
309 .long sys_fchmodat
310 .long sys_faccessat
311 .long sys_ni_syscall /* pselect6 */
312 .long sys_ni_syscall /* sys_ppoll */
313 .long sys_unshare /* 310 */
314 .long sys_set_robust_list
315 .long sys_get_robust_list
316 .long sys_splice
317 .long sys_sync_file_range
318 .long sys_tee /* 315 */
319 .long sys_vmsplice
320 .long sys_move_pages
321 .long sys_getcpu
322 .long sys_epoll_pwait
323 .long sys_utimensat /* 320 */
324 .long sys_signalfd
325 .long sys_timerfd_create
326 .long sys_eventfd
327 .long sys_fallocate
328 .long sys_semtimedop /* 325 */
329 .long sys_timerfd_settime
330 .long sys_timerfd_gettime
331 .long sys_semctl
332 .long sys_semget
333 .long sys_semop /* 330 */
334 .long sys_msgctl
335 .long sys_msgget
336 .long sys_msgrcv
337 .long sys_msgsnd
338 .long sys_shmat /* 335 */
339 .long sys_shmctl
340 .long sys_shmdt
341 .long sys_shmget
342 .long sys_signalfd4 /* new syscall */
343 .long sys_eventfd2 /* 340 */
344 .long sys_epoll_create1
345 .long sys_dup3
346 .long sys_pipe2
347 .long sys_inotify_init1
348 .long sys_socket /* 345 */
349 .long sys_socketpair
350 .long sys_bind
351 .long sys_listen
352 .long sys_accept
353 .long sys_connect /* 350 */
354 .long sys_getsockname
355 .long sys_getpeername
356 .long sys_sendto
357 .long sys_send
358 .long sys_recvfrom /* 355 */
359 .long sys_recv
360 .long sys_setsockopt
361 .long sys_getsockopt
362 .long sys_shutdown
363 .long sys_sendmsg /* 360 */
364 .long sys_recvmsg
365 .long sys_ni_syscall
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
new file mode 100644
index 000000000000..05a497eefd78
--- /dev/null
+++ b/arch/microblaze/kernel/timer.c
@@ -0,0 +1,262 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/init.h>
12#include <linux/kernel.h>
13#include <linux/param.h>
14#include <linux/interrupt.h>
15#include <linux/profile.h>
16#include <linux/irq.h>
17#include <linux/delay.h>
18#include <linux/sched.h>
19#include <linux/spinlock.h>
20#include <linux/err.h>
21#include <linux/clk.h>
22#include <linux/clocksource.h>
23#include <linux/clockchips.h>
24#include <linux/io.h>
25#include <asm/cpuinfo.h>
26#include <asm/setup.h>
27#include <asm/prom.h>
28#include <asm/irq.h>
29#include <asm/system.h>
30
31#ifdef CONFIG_SELFMOD_TIMER
32#include <asm/selfmod.h>
33#define TIMER_BASE BARRIER_BASE_ADDR
34#else
35static unsigned int timer_baseaddr;
36#define TIMER_BASE timer_baseaddr
37#endif
38
39#define TCSR0 (0x00)
40#define TLR0 (0x04)
41#define TCR0 (0x08)
42#define TCSR1 (0x10)
43#define TLR1 (0x14)
44#define TCR1 (0x18)
45
46#define TCSR_MDT (1<<0)
47#define TCSR_UDT (1<<1)
48#define TCSR_GENT (1<<2)
49#define TCSR_CAPT (1<<3)
50#define TCSR_ARHT (1<<4)
51#define TCSR_LOAD (1<<5)
52#define TCSR_ENIT (1<<6)
53#define TCSR_ENT (1<<7)
54#define TCSR_TINT (1<<8)
55#define TCSR_PWMA (1<<9)
56#define TCSR_ENALL (1<<10)
57
58static inline void microblaze_timer0_stop(void)
59{
60 out_be32(TIMER_BASE + TCSR0, in_be32(TIMER_BASE + TCSR0) & ~TCSR_ENT);
61}
62
63static inline void microblaze_timer0_start_periodic(unsigned long load_val)
64{
65 if (!load_val)
66 load_val = 1;
67 out_be32(TIMER_BASE + TLR0, load_val); /* loading value to timer reg */
68
69 /* load the initial value */
70 out_be32(TIMER_BASE + TCSR0, TCSR_LOAD);
71
72 /* see timer data sheet for detail
73 * !ENALL - don't enable 'em all
74 * !PWMA - disable pwm
75 * TINT - clear interrupt status
76 * ENT- enable timer itself
77 * EINT - enable interrupt
78 * !LOAD - clear the bit to let go
79 * ARHT - auto reload
80 * !CAPT - no external trigger
81 * !GENT - no external signal
82 * UDT - set the timer as down counter
83 * !MDT0 - generate mode
84 */
85 out_be32(TIMER_BASE + TCSR0,
86 TCSR_TINT|TCSR_ENIT|TCSR_ENT|TCSR_ARHT|TCSR_UDT);
87}
88
89static inline void microblaze_timer0_start_oneshot(unsigned long load_val)
90{
91 if (!load_val)
92 load_val = 1;
93 out_be32(TIMER_BASE + TLR0, load_val); /* loading value to timer reg */
94
95 /* load the initial value */
96 out_be32(TIMER_BASE + TCSR0, TCSR_LOAD);
97
98 out_be32(TIMER_BASE + TCSR0,
99 TCSR_TINT|TCSR_ENIT|TCSR_ENT|TCSR_ARHT|TCSR_UDT);
100}
101
102static int microblaze_timer_set_next_event(unsigned long delta,
103 struct clock_event_device *dev)
104{
105 pr_debug("%s: next event, delta %x\n", __func__, (u32)delta);
106 microblaze_timer0_start_oneshot(delta);
107 return 0;
108}
109
110static void microblaze_timer_set_mode(enum clock_event_mode mode,
111 struct clock_event_device *evt)
112{
113 switch (mode) {
114 case CLOCK_EVT_MODE_PERIODIC:
115 printk(KERN_INFO "%s: periodic\n", __func__);
116 microblaze_timer0_start_periodic(cpuinfo.freq_div_hz);
117 break;
118 case CLOCK_EVT_MODE_ONESHOT:
119 printk(KERN_INFO "%s: oneshot\n", __func__);
120 break;
121 case CLOCK_EVT_MODE_UNUSED:
122 printk(KERN_INFO "%s: unused\n", __func__);
123 break;
124 case CLOCK_EVT_MODE_SHUTDOWN:
125 printk(KERN_INFO "%s: shutdown\n", __func__);
126 microblaze_timer0_stop();
127 break;
128 case CLOCK_EVT_MODE_RESUME:
129 printk(KERN_INFO "%s: resume\n", __func__);
130 break;
131 }
132}
133
134static struct clock_event_device clockevent_microblaze_timer = {
135 .name = "microblaze_clockevent",
136 .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
137 .shift = 24,
138 .rating = 300,
139 .set_next_event = microblaze_timer_set_next_event,
140 .set_mode = microblaze_timer_set_mode,
141};
142
143static inline void timer_ack(void)
144{
145 out_be32(TIMER_BASE + TCSR0, in_be32(TIMER_BASE + TCSR0));
146}
147
148static irqreturn_t timer_interrupt(int irq, void *dev_id)
149{
150 struct clock_event_device *evt = &clockevent_microblaze_timer;
151#ifdef CONFIG_HEART_BEAT
152 heartbeat();
153#endif
154 timer_ack();
155 evt->event_handler(evt);
156 return IRQ_HANDLED;
157}
158
159static struct irqaction timer_irqaction = {
160 .handler = timer_interrupt,
161 .flags = IRQF_DISABLED | IRQF_TIMER,
162 .name = "timer",
163 .dev_id = &clockevent_microblaze_timer,
164};
165
166static __init void microblaze_clockevent_init(void)
167{
168 clockevent_microblaze_timer.mult =
169 div_sc(cpuinfo.cpu_clock_freq, NSEC_PER_SEC,
170 clockevent_microblaze_timer.shift);
171 clockevent_microblaze_timer.max_delta_ns =
172 clockevent_delta2ns((u32)~0, &clockevent_microblaze_timer);
173 clockevent_microblaze_timer.min_delta_ns =
174 clockevent_delta2ns(1, &clockevent_microblaze_timer);
175 clockevent_microblaze_timer.cpumask = cpumask_of(0);
176 clockevents_register_device(&clockevent_microblaze_timer);
177}
178
179static cycle_t microblaze_read(void)
180{
181 /* reading actual value of timer 1 */
182 return (cycle_t) (in_be32(TIMER_BASE + TCR1));
183}
184
185static struct clocksource clocksource_microblaze = {
186 .name = "microblaze_clocksource",
187 .rating = 300,
188 .read = microblaze_read,
189 .mask = CLOCKSOURCE_MASK(32),
190 .shift = 24, /* I can shift it */
191 .flags = CLOCK_SOURCE_IS_CONTINUOUS,
192};
193
194static int __init microblaze_clocksource_init(void)
195{
196 clocksource_microblaze.mult =
197 clocksource_hz2mult(cpuinfo.cpu_clock_freq,
198 clocksource_microblaze.shift);
199 if (clocksource_register(&clocksource_microblaze))
200 panic("failed to register clocksource");
201
202 /* stop timer1 */
203 out_be32(TIMER_BASE + TCSR1, in_be32(TIMER_BASE + TCSR1) & ~TCSR_ENT);
204 /* start timer1 - up counting without interrupt */
205 out_be32(TIMER_BASE + TCSR1, TCSR_TINT|TCSR_ENT|TCSR_ARHT);
206 return 0;
207}
208
209void __init time_init(void)
210{
211 u32 irq, i = 0;
212 u32 timer_num = 1;
213 struct device_node *timer = NULL;
214#ifdef CONFIG_SELFMOD_TIMER
215 unsigned int timer_baseaddr = 0;
216 int arr_func[] = {
217 (int)&microblaze_read,
218 (int)&timer_interrupt,
219 (int)&microblaze_clocksource_init,
220 (int)&microblaze_timer_set_mode,
221 (int)&microblaze_timer_set_next_event,
222 0
223 };
224#endif
225 char *timer_list[] = {
226 "xlnx,xps-timer-1.00.a",
227 "xlnx,opb-timer-1.00.b",
228 "xlnx,opb-timer-1.00.a",
229 NULL
230 };
231
232 for (i = 0; timer_list[i] != NULL; i++) {
233 timer = of_find_compatible_node(NULL, NULL, timer_list[i]);
234 if (timer)
235 break;
236 }
237
238 timer_baseaddr = *(int *) of_get_property(timer, "reg", NULL);
239 timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE);
240 irq = *(int *) of_get_property(timer, "interrupts", NULL);
241 timer_num =
242 *(int *) of_get_property(timer, "xlnx,one-timer-only", NULL);
243 if (timer_num) {
244 printk(KERN_EMERG "Please enable two timers in HW\n");
245 BUG();
246 }
247
248#ifdef CONFIG_SELFMOD_TIMER
249 selfmod_function((int *) arr_func, timer_baseaddr);
250#endif
251 printk(KERN_INFO "%s #0 at 0x%08x, irq=%d\n",
252 timer_list[i], timer_baseaddr, irq);
253
254 cpuinfo.freq_div_hz = cpuinfo.cpu_clock_freq / HZ;
255
256 setup_irq(irq, &timer_irqaction);
257#ifdef CONFIG_HEART_BEAT
258 setup_heartbeat();
259#endif
260 microblaze_clocksource_init();
261 microblaze_clockevent_init();
262}
diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
new file mode 100644
index 000000000000..fbdc533c61e3
--- /dev/null
+++ b/arch/microblaze/kernel/traps.c
@@ -0,0 +1,107 @@
1/*
2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11#include <linux/kernel.h>
12#include <linux/kallsyms.h>
13#include <linux/module.h>
14#include <linux/sched.h>
15#include <linux/debug_locks.h>
16
17#include <asm/exceptions.h>
18#include <asm/system.h>
19
20void trap_init(void)
21{
22 __enable_hw_exceptions();
23}
24
25void __bad_xchg(volatile void *ptr, int size)
26{
27 printk(KERN_INFO "xchg: bad data size: pc 0x%p, ptr 0x%p, size %d\n",
28 __builtin_return_address(0), ptr, size);
29 BUG();
30}
31EXPORT_SYMBOL(__bad_xchg);
32
33static int kstack_depth_to_print = 24;
34
35static int __init kstack_setup(char *s)
36{
37 kstack_depth_to_print = strict_strtoul(s, 0, 0);
38
39 return 1;
40}
41__setup("kstack=", kstack_setup);
42
43void show_trace(struct task_struct *task, unsigned long *stack)
44{
45 unsigned long addr;
46
47 if (!stack)
48 stack = (unsigned long *)&stack;
49
50 printk(KERN_NOTICE "Call Trace: ");
51#ifdef CONFIG_KALLSYMS
52 printk(KERN_NOTICE "\n");
53#endif
54 while (!kstack_end(stack)) {
55 addr = *stack++;
56 /*
57 * If the address is either in the text segment of the
58 * kernel, or in the region which contains vmalloc'ed
59 * memory, it *may* be the address of a calling
60 * routine; if so, print it so that someone tracing
61 * down the cause of the crash will be able to figure
62 * out the call path that was taken.
63 */
64 if (kernel_text_address(addr))
65 print_ip_sym(addr);
66 }
67 printk(KERN_NOTICE "\n");
68
69 if (!task)
70 task = current;
71
72 debug_show_held_locks(task);
73}
74
75void show_stack(struct task_struct *task, unsigned long *sp)
76{
77 unsigned long *stack;
78 int i;
79
80 if (sp == NULL) {
81 if (task)
82 sp = (unsigned long *) ((struct thread_info *)
83 (task->stack))->cpu_context.r1;
84 else
85 sp = (unsigned long *)&sp;
86 }
87
88 stack = sp;
89
90 printk(KERN_INFO "\nStack:\n ");
91
92 for (i = 0; i < kstack_depth_to_print; i++) {
93 if (kstack_end(sp))
94 break;
95 if (i && ((i % 8) == 0))
96 printk("\n ");
97 printk("%08lx ", *sp++);
98 }
99 printk("\n");
100 show_trace(task, stack);
101}
102
103void dump_stack(void)
104{
105 show_stack(NULL, NULL);
106}
107EXPORT_SYMBOL(dump_stack);
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
new file mode 100644
index 000000000000..840385e51291
--- /dev/null
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -0,0 +1,163 @@
1/*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10
11OUTPUT_FORMAT("elf32-microblaze", "elf32-microblaze", "elf32-microblaze")
12OUTPUT_ARCH(microblaze)
13ENTRY(_start)
14
15#include <asm-generic/vmlinux.lds.h>
16
17jiffies = jiffies_64 + 4;
18
19SECTIONS {
20 . = CONFIG_KERNEL_BASE_ADDR;
21
22 .text : {
23 _text = . ;
24 _stext = . ;
25 *(.text .text.*)
26 *(.fixup)
27
28 *(.exitcall.exit)
29 SCHED_TEXT
30 LOCK_TEXT
31 KPROBES_TEXT
32 . = ALIGN (4) ;
33 _etext = . ;
34 }
35
36 . = ALIGN (4) ;
37 _fdt_start = . ; /* place for fdt blob */
38 . = . + 0x4000;
39 _fdt_end = . ;
40
41 . = ALIGN(16);
42 RODATA
43 . = ALIGN(16);
44 __ex_table : {
45 __start___ex_table = .;
46 *(__ex_table)
47 __stop___ex_table = .;
48 }
49
50 /*
51 * sdata2 section can go anywhere, but must be word aligned
52 * and SDA2_BASE must point to the middle of it
53 */
54 .sdata2 : {
55 _ssrw = .;
56 . = ALIGN(4096); /* page aligned when MMU used - origin 0x8 */
57 *(.sdata2)
58 . = ALIGN(8);
59 _essrw = .;
60 _ssrw_size = _essrw - _ssrw;
61 _KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
62 }
63
64 _sdata = . ;
65 .data ALIGN (4096) : { /* page aligned when MMU used - origin 0x4 */
66 *(.data)
67 }
68 . = ALIGN(32);
69 .data.cacheline_aligned : { *(.data.cacheline_aligned) }
70 _edata = . ;
71
72 /* Reserve some low RAM for r0 based memory references */
73 . = ALIGN(0x4) ;
74 r0_ram = . ;
75 . = . + 4096; /* a page should be enough */
76
77 /* The initial task */
78 . = ALIGN(8192);
79 .data.init_task : { *(.data.init_task) }
80
81 /* Under the microblaze ABI, .sdata and .sbss must be contiguous */
82 . = ALIGN(8);
83 .sdata : {
84 _ssro = .;
85 *(.sdata)
86 }
87
88 .sbss : {
89 _ssbss = .;
90 *(.sbss)
91 _esbss = .;
92 _essro = .;
93 _ssro_size = _essro - _ssro ;
94 _KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
95 }
96
97 __init_begin = .;
98
99 . = ALIGN(4096);
100 .init.text : {
101 _sinittext = . ;
102 *(.init.text)
103 *(.exit.text)
104 *(.exit.data)
105 _einittext = .;
106 }
107
108 .init.data : { *(.init.data) }
109
110 . = ALIGN(4);
111 .init.ivt : {
112 __ivt_start = .;
113 *(.init.ivt)
114 __ivt_end = .;
115 }
116
117 .init.setup : {
118 __setup_start = .;
119 *(.init.setup)
120 __setup_end = .;
121 }
122
123 .initcall.init : {
124 __initcall_start = .;
125 INITCALLS
126 __initcall_end = .;
127 }
128
129 .con_initcall.init : {
130 __con_initcall_start = .;
131 *(.con_initcall.init)
132 __con_initcall_end = .;
133 }
134
135 __init_end_before_initramfs = .;
136
137 .init.ramfs ALIGN(4096) : {
138 __initramfs_start = .;
139 *(.init.ramfs)
140 __initramfs_end = .;
141 . = ALIGN(4);
142 LONG(0);
143/*
144 * FIXME this can break initramfs for MMU.
145 * Pad init.ramfs up to page boundary,
146 * so that __init_end == __bss_start. This will make image.elf
147 * consistent with the image.bin
148 */
149 /* . = ALIGN(4096); */
150 }
151 __init_end = .;
152
153 .bss ALIGN (4096) : { /* page aligned when MMU used */
154 __bss_start = . ;
155 *(.bss*)
156 *(COMMON)
157 . = ALIGN (4) ;
158 __bss_stop = . ;
159 _ebss = . ;
160 }
161 . = ALIGN(4096);
162 _end = .;
163}
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
new file mode 100644
index 000000000000..d27126bf306a
--- /dev/null
+++ b/arch/microblaze/lib/Makefile
@@ -0,0 +1,13 @@
1#
2# Makefile
3#
4
5lib-y := memset.o checksum.o
6
7ifeq ($(CONFIG_OPT_LIB_ASM),y)
8lib-y += fastcopy.o
9else
10lib-y += memcpy.o memmove.o
11endif
12
13lib-y += uaccess.o
diff --git a/arch/microblaze/lib/checksum.c b/arch/microblaze/lib/checksum.c
new file mode 100644
index 000000000000..809340070a13
--- /dev/null
+++ b/arch/microblaze/lib/checksum.c
@@ -0,0 +1,163 @@
1/*
2 *
3 * INET An implementation of the TCP/IP protocol suite for the LINUX
4 * operating system. INET is implemented using the BSD Socket
5 * interface as the means of communication with the user level.
6 *
7 * IP/TCP/UDP checksumming routines
8 *
9 * Authors: Jorge Cwik, <jorge@laser.satlink.net>
10 * Arnt Gulbrandsen, <agulbra@nvg.unit.no>
11 * Tom May, <ftom@netcom.com>
12 * Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
13 * Lots of code moved from tcp.c and ip.c; see those files
14 * for more names.
15 *
16 * 03/02/96 Jes Sorensen, Andreas Schwab, Roman Hodek:
17 * Fixed some nasty bugs, causing some horrible crashes.
18 * A: At some points, the sum (%0) was used as
19 * length-counter instead of the length counter
20 * (%1). Thanks to Roman Hodek for pointing this out.
21 * B: GCC seems to mess up if one uses too many
22 * data-registers to hold input values and one tries to
23 * specify d0 and d1 as scratch registers. Letting gcc
24 * choose these registers itself solves the problem.
25 *
26 * This program is free software; you can redistribute it and/or
27 * modify it under the terms of the GNU General Public License
28 * as published by the Free Software Foundation; either version
29 * 2 of the License, or (at your option) any later version.
30 */
31
32/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access
33 kills, so most of the assembly has to go. */
34
35#include <net/checksum.h>
36#include <asm/checksum.h>
37#include <linux/module.h>
38
39static inline unsigned short from32to16(unsigned long x)
40{
41 /* add up 16-bit and 16-bit for 16+c bit */
42 x = (x & 0xffff) + (x >> 16);
43 /* add up carry.. */
44 x = (x & 0xffff) + (x >> 16);
45 return x;
46}
47
48static unsigned int do_csum(const unsigned char *buff, int len)
49{
50 int odd, count;
51 unsigned long result = 0;
52
53 if (len <= 0)
54 goto out;
55 odd = 1 & (unsigned long) buff;
56 if (odd) {
57 result = *buff;
58 len--;
59 buff++;
60 }
61 count = len >> 1; /* nr of 16-bit words.. */
62 if (count) {
63 if (2 & (unsigned long) buff) {
64 result += *(unsigned short *) buff;
65 count--;
66 len -= 2;
67 buff += 2;
68 }
69 count >>= 1; /* nr of 32-bit words.. */
70 if (count) {
71 unsigned long carry = 0;
72 do {
73 unsigned long w = *(unsigned long *) buff;
74 count--;
75 buff += 4;
76 result += carry;
77 result += w;
78 carry = (w > result);
79 } while (count);
80 result += carry;
81 result = (result & 0xffff) + (result >> 16);
82 }
83 if (len & 2) {
84 result += *(unsigned short *) buff;
85 buff += 2;
86 }
87 }
88 if (len & 1)
89 result += (*buff << 8);
90 result = from32to16(result);
91 if (odd)
92 result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
93out:
94 return result;
95}
96
97/*
98 * This is a version of ip_compute_csum() optimized for IP headers,
99 * which always checksum on 4 octet boundaries.
100 */
101__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
102{
103 return (__force __sum16)~do_csum(iph, ihl*4);
104}
105
106/*
107 * computes the checksum of a memory block at buff, length len,
108 * and adds in "sum" (32-bit)
109 *
110 * returns a 32-bit number suitable for feeding into itself
111 * or csum_tcpudp_magic
112 *
113 * this function must be called with even lengths, except
114 * for the last fragment, which may be odd
115 *
116 * it's best to have buff aligned on a 32-bit boundary
117 */
118__wsum csum_partial(const void *buff, int len, __wsum sum)
119{
120 unsigned int result = do_csum(buff, len);
121
122 /* add in old sum, and carry.. */
123 result += sum;
124 if (sum > result)
125 result += 1;
126 return result;
127}
128EXPORT_SYMBOL(csum_partial);
129
130/*
131 * this routine is used for miscellaneous IP-like checksums, mainly
132 * in icmp.c
133 */
134__sum16 ip_compute_csum(const unsigned char *buff, int len)
135{
136 return ~do_csum(buff, len);
137}
138EXPORT_SYMBOL(ip_compute_csum);
139
140/*
141 * copy from fs while checksumming, otherwise like csum_partial
142 */
143__wsum
144csum_partial_copy_from_user(const char __user *src, char *dst, int len,
145 int sum, int *csum_err)
146{
147 if (csum_err)
148 *csum_err = 0;
149 memcpy(dst, src, len);
150 return csum_partial(dst, len, sum);
151}
152EXPORT_SYMBOL(csum_partial_copy_from_user);
153
154/*
155 * copy from ds while checksumming, otherwise like csum_partial
156 */
157__wsum
158csum_partial_copy(const char *src, char *dst, int len, int sum)
159{
160 memcpy(dst, src, len);
161 return csum_partial(dst, len, sum);
162}
163EXPORT_SYMBOL(csum_partial_copy);
diff --git a/arch/microblaze/lib/fastcopy.S b/arch/microblaze/lib/fastcopy.S
new file mode 100644
index 000000000000..02e3ab4eddf3
--- /dev/null
+++ b/arch/microblaze/lib/fastcopy.S
@@ -0,0 +1,662 @@
1/*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2008 Jim Law - Iris LP All rights reserved.
5 *
6 * This file is subject to the terms and conditions of the GNU General
7 * Public License. See the file COPYING in the main directory of this
8 * archive for more details.
9 *
10 * Written by Jim Law <jlaw@irispower.com>
11 *
12 * intended to replace:
13 * memcpy in memcpy.c and
14 * memmove in memmove.c
15 * ... in arch/microblaze/lib
16 *
17 *
18 * assly_fastcopy.S
19 *
20 * Attempt at quicker memcpy and memmove for MicroBlaze
21 * Input : Operand1 in Reg r5 - destination address
22 * Operand2 in Reg r6 - source address
23 * Operand3 in Reg r7 - number of bytes to transfer
24 * Output: Result in Reg r3 - starting destinaition address
25 *
26 *
27 * Explanation:
28 * Perform (possibly unaligned) copy of a block of memory
29 * between mem locations with size of xfer spec'd in bytes
30 */
31
32#include <linux/linkage.h>
33
34 .globl memcpy
35 .ent memcpy
36
37memcpy:
38fast_memcpy_ascending:
39 /* move d to return register as value of function */
40 addi r3, r5, 0
41
42 addi r4, r0, 4 /* n = 4 */
43 cmpu r4, r4, r7 /* n = c - n (unsigned) */
44 blti r4, a_xfer_end /* if n < 0, less than one word to transfer */
45
46 /* transfer first 0~3 bytes to get aligned dest address */
47 andi r4, r5, 3 /* n = d & 3 */
48 /* if zero, destination already aligned */
49 beqi r4, a_dalign_done
50 /* n = 4 - n (yields 3, 2, 1 transfers for 1, 2, 3 addr offset) */
51 rsubi r4, r4, 4
52 rsub r7, r4, r7 /* c = c - n adjust c */
53
54a_xfer_first_loop:
55 /* if no bytes left to transfer, transfer the bulk */
56 beqi r4, a_dalign_done
57 lbui r11, r6, 0 /* h = *s */
58 sbi r11, r5, 0 /* *d = h */
59 addi r6, r6, 1 /* s++ */
60 addi r5, r5, 1 /* d++ */
61 brid a_xfer_first_loop /* loop */
62 addi r4, r4, -1 /* n-- (IN DELAY SLOT) */
63
64a_dalign_done:
65 addi r4, r0, 32 /* n = 32 */
66 cmpu r4, r4, r7 /* n = c - n (unsigned) */
67 /* if n < 0, less than one block to transfer */
68 blti r4, a_block_done
69
70a_block_xfer:
71 andi r4, r7, 0xffffffe0 /* n = c & ~31 */
72 rsub r7, r4, r7 /* c = c - n */
73
74 andi r9, r6, 3 /* t1 = s & 3 */
75 /* if temp != 0, unaligned transfers needed */
76 bnei r9, a_block_unaligned
77
78a_block_aligned:
79 lwi r9, r6, 0 /* t1 = *(s + 0) */
80 lwi r10, r6, 4 /* t2 = *(s + 4) */
81 lwi r11, r6, 8 /* t3 = *(s + 8) */
82 lwi r12, r6, 12 /* t4 = *(s + 12) */
83 swi r9, r5, 0 /* *(d + 0) = t1 */
84 swi r10, r5, 4 /* *(d + 4) = t2 */
85 swi r11, r5, 8 /* *(d + 8) = t3 */
86 swi r12, r5, 12 /* *(d + 12) = t4 */
87 lwi r9, r6, 16 /* t1 = *(s + 16) */
88 lwi r10, r6, 20 /* t2 = *(s + 20) */
89 lwi r11, r6, 24 /* t3 = *(s + 24) */
90 lwi r12, r6, 28 /* t4 = *(s + 28) */
91 swi r9, r5, 16 /* *(d + 16) = t1 */
92 swi r10, r5, 20 /* *(d + 20) = t2 */
93 swi r11, r5, 24 /* *(d + 24) = t3 */
94 swi r12, r5, 28 /* *(d + 28) = t4 */
95 addi r6, r6, 32 /* s = s + 32 */
96 addi r4, r4, -32 /* n = n - 32 */
97 bneid r4, a_block_aligned /* while (n) loop */
98 addi r5, r5, 32 /* d = d + 32 (IN DELAY SLOT) */
99 bri a_block_done
100
101a_block_unaligned:
102 andi r8, r6, 0xfffffffc /* as = s & ~3 */
103 add r6, r6, r4 /* s = s + n */
104 lwi r11, r8, 0 /* h = *(as + 0) */
105
106 addi r9, r9, -1
107 beqi r9, a_block_u1 /* t1 was 1 => 1 byte offset */
108 addi r9, r9, -1
109 beqi r9, a_block_u2 /* t1 was 2 => 2 byte offset */
110
111a_block_u3:
112 bslli r11, r11, 24 /* h = h << 24 */
113a_bu3_loop:
114 lwi r12, r8, 4 /* v = *(as + 4) */
115 bsrli r9, r12, 8 /* t1 = v >> 8 */
116 or r9, r11, r9 /* t1 = h | t1 */
117 swi r9, r5, 0 /* *(d + 0) = t1 */
118 bslli r11, r12, 24 /* h = v << 24 */
119 lwi r12, r8, 8 /* v = *(as + 8) */
120 bsrli r9, r12, 8 /* t1 = v >> 8 */
121 or r9, r11, r9 /* t1 = h | t1 */
122 swi r9, r5, 4 /* *(d + 4) = t1 */
123 bslli r11, r12, 24 /* h = v << 24 */
124 lwi r12, r8, 12 /* v = *(as + 12) */
125 bsrli r9, r12, 8 /* t1 = v >> 8 */
126 or r9, r11, r9 /* t1 = h | t1 */
127 swi r9, r5, 8 /* *(d + 8) = t1 */
128 bslli r11, r12, 24 /* h = v << 24 */
129 lwi r12, r8, 16 /* v = *(as + 16) */
130 bsrli r9, r12, 8 /* t1 = v >> 8 */
131 or r9, r11, r9 /* t1 = h | t1 */
132 swi r9, r5, 12 /* *(d + 12) = t1 */
133 bslli r11, r12, 24 /* h = v << 24 */
134 lwi r12, r8, 20 /* v = *(as + 20) */
135 bsrli r9, r12, 8 /* t1 = v >> 8 */
136 or r9, r11, r9 /* t1 = h | t1 */
137 swi r9, r5, 16 /* *(d + 16) = t1 */
138 bslli r11, r12, 24 /* h = v << 24 */
139 lwi r12, r8, 24 /* v = *(as + 24) */
140 bsrli r9, r12, 8 /* t1 = v >> 8 */
141 or r9, r11, r9 /* t1 = h | t1 */
142 swi r9, r5, 20 /* *(d + 20) = t1 */
143 bslli r11, r12, 24 /* h = v << 24 */
144 lwi r12, r8, 28 /* v = *(as + 28) */
145 bsrli r9, r12, 8 /* t1 = v >> 8 */
146 or r9, r11, r9 /* t1 = h | t1 */
147 swi r9, r5, 24 /* *(d + 24) = t1 */
148 bslli r11, r12, 24 /* h = v << 24 */
149 lwi r12, r8, 32 /* v = *(as + 32) */
150 bsrli r9, r12, 8 /* t1 = v >> 8 */
151 or r9, r11, r9 /* t1 = h | t1 */
152 swi r9, r5, 28 /* *(d + 28) = t1 */
153 bslli r11, r12, 24 /* h = v << 24 */
154 addi r8, r8, 32 /* as = as + 32 */
155 addi r4, r4, -32 /* n = n - 32 */
156 bneid r4, a_bu3_loop /* while (n) loop */
157 addi r5, r5, 32 /* d = d + 32 (IN DELAY SLOT) */
158 bri a_block_done
159
160a_block_u1:
161 bslli r11, r11, 8 /* h = h << 8 */
162a_bu1_loop:
163 lwi r12, r8, 4 /* v = *(as + 4) */
164 bsrli r9, r12, 24 /* t1 = v >> 24 */
165 or r9, r11, r9 /* t1 = h | t1 */
166 swi r9, r5, 0 /* *(d + 0) = t1 */
167 bslli r11, r12, 8 /* h = v << 8 */
168 lwi r12, r8, 8 /* v = *(as + 8) */
169 bsrli r9, r12, 24 /* t1 = v >> 24 */
170 or r9, r11, r9 /* t1 = h | t1 */
171 swi r9, r5, 4 /* *(d + 4) = t1 */
172 bslli r11, r12, 8 /* h = v << 8 */
173 lwi r12, r8, 12 /* v = *(as + 12) */
174 bsrli r9, r12, 24 /* t1 = v >> 24 */
175 or r9, r11, r9 /* t1 = h | t1 */
176 swi r9, r5, 8 /* *(d + 8) = t1 */
177 bslli r11, r12, 8 /* h = v << 8 */
178 lwi r12, r8, 16 /* v = *(as + 16) */
179 bsrli r9, r12, 24 /* t1 = v >> 24 */
180 or r9, r11, r9 /* t1 = h | t1 */
181 swi r9, r5, 12 /* *(d + 12) = t1 */
182 bslli r11, r12, 8 /* h = v << 8 */
183 lwi r12, r8, 20 /* v = *(as + 20) */
184 bsrli r9, r12, 24 /* t1 = v >> 24 */
185 or r9, r11, r9 /* t1 = h | t1 */
186 swi r9, r5, 16 /* *(d + 16) = t1 */
187 bslli r11, r12, 8 /* h = v << 8 */
188 lwi r12, r8, 24 /* v = *(as + 24) */
189 bsrli r9, r12, 24 /* t1 = v >> 24 */
190 or r9, r11, r9 /* t1 = h | t1 */
191 swi r9, r5, 20 /* *(d + 20) = t1 */
192 bslli r11, r12, 8 /* h = v << 8 */
193 lwi r12, r8, 28 /* v = *(as + 28) */
194 bsrli r9, r12, 24 /* t1 = v >> 24 */
195 or r9, r11, r9 /* t1 = h | t1 */
196 swi r9, r5, 24 /* *(d + 24) = t1 */
197 bslli r11, r12, 8 /* h = v << 8 */
198 lwi r12, r8, 32 /* v = *(as + 32) */
199 bsrli r9, r12, 24 /* t1 = v >> 24 */
200 or r9, r11, r9 /* t1 = h | t1 */
201 swi r9, r5, 28 /* *(d + 28) = t1 */
202 bslli r11, r12, 8 /* h = v << 8 */
203 addi r8, r8, 32 /* as = as + 32 */
204 addi r4, r4, -32 /* n = n - 32 */
205 bneid r4, a_bu1_loop /* while (n) loop */
206 addi r5, r5, 32 /* d = d + 32 (IN DELAY SLOT) */
207 bri a_block_done
208
209a_block_u2:
210 bslli r11, r11, 16 /* h = h << 16 */
211a_bu2_loop:
212 lwi r12, r8, 4 /* v = *(as + 4) */
213 bsrli r9, r12, 16 /* t1 = v >> 16 */
214 or r9, r11, r9 /* t1 = h | t1 */
215 swi r9, r5, 0 /* *(d + 0) = t1 */
216 bslli r11, r12, 16 /* h = v << 16 */
217 lwi r12, r8, 8 /* v = *(as + 8) */
218 bsrli r9, r12, 16 /* t1 = v >> 16 */
219 or r9, r11, r9 /* t1 = h | t1 */
220 swi r9, r5, 4 /* *(d + 4) = t1 */
221 bslli r11, r12, 16 /* h = v << 16 */
222 lwi r12, r8, 12 /* v = *(as + 12) */
223 bsrli r9, r12, 16 /* t1 = v >> 16 */
224 or r9, r11, r9 /* t1 = h | t1 */
225 swi r9, r5, 8 /* *(d + 8) = t1 */
226 bslli r11, r12, 16 /* h = v << 16 */
227 lwi r12, r8, 16 /* v = *(as + 16) */
228 bsrli r9, r12, 16 /* t1 = v >> 16 */
229 or r9, r11, r9 /* t1 = h | t1 */
230 swi r9, r5, 12 /* *(d + 12) = t1 */
231 bslli r11, r12, 16 /* h = v << 16 */
232 lwi r12, r8, 20 /* v = *(as + 20) */
233 bsrli r9, r12, 16 /* t1 = v >> 16 */
234 or r9, r11, r9 /* t1 = h | t1 */
235 swi r9, r5, 16 /* *(d + 16) = t1 */
236 bslli r11, r12, 16 /* h = v << 16 */
237 lwi r12, r8, 24 /* v = *(as + 24) */
238 bsrli r9, r12, 16 /* t1 = v >> 16 */
239 or r9, r11, r9 /* t1 = h | t1 */
240 swi r9, r5, 20 /* *(d + 20) = t1 */
241 bslli r11, r12, 16 /* h = v << 16 */
242 lwi r12, r8, 28 /* v = *(as + 28) */
243 bsrli r9, r12, 16 /* t1 = v >> 16 */
244 or r9, r11, r9 /* t1 = h | t1 */
245 swi r9, r5, 24 /* *(d + 24) = t1 */
246 bslli r11, r12, 16 /* h = v << 16 */
247 lwi r12, r8, 32 /* v = *(as + 32) */
248 bsrli r9, r12, 16 /* t1 = v >> 16 */
249 or r9, r11, r9 /* t1 = h | t1 */
250 swi r9, r5, 28 /* *(d + 28) = t1 */
251 bslli r11, r12, 16 /* h = v << 16 */
252 addi r8, r8, 32 /* as = as + 32 */
253 addi r4, r4, -32 /* n = n - 32 */
254 bneid r4, a_bu2_loop /* while (n) loop */
255 addi r5, r5, 32 /* d = d + 32 (IN DELAY SLOT) */
256
257a_block_done:
258 addi r4, r0, 4 /* n = 4 */
259 cmpu r4, r4, r7 /* n = c - n (unsigned) */
260 blti r4, a_xfer_end /* if n < 0, less than one word to transfer */
261
262a_word_xfer:
263 andi r4, r7, 0xfffffffc /* n = c & ~3 */
264 addi r10, r0, 0 /* offset = 0 */
265
266 andi r9, r6, 3 /* t1 = s & 3 */
267 /* if temp != 0, unaligned transfers needed */
268 bnei r9, a_word_unaligned
269
270a_word_aligned:
271 lw r9, r6, r10 /* t1 = *(s+offset) */
272 sw r9, r5, r10 /* *(d+offset) = t1 */
273 addi r4, r4,-4 /* n-- */
274 bneid r4, a_word_aligned /* loop */
275 addi r10, r10, 4 /* offset++ (IN DELAY SLOT) */
276
277 bri a_word_done
278
279a_word_unaligned:
280 andi r8, r6, 0xfffffffc /* as = s & ~3 */
281 lwi r11, r8, 0 /* h = *(as + 0) */
282 addi r8, r8, 4 /* as = as + 4 */
283
284 addi r9, r9, -1
285 beqi r9, a_word_u1 /* t1 was 1 => 1 byte offset */
286 addi r9, r9, -1
287 beqi r9, a_word_u2 /* t1 was 2 => 2 byte offset */
288
289a_word_u3:
290 bslli r11, r11, 24 /* h = h << 24 */
291a_wu3_loop:
292 lw r12, r8, r10 /* v = *(as + offset) */
293 bsrli r9, r12, 8 /* t1 = v >> 8 */
294 or r9, r11, r9 /* t1 = h | t1 */
295 sw r9, r5, r10 /* *(d + offset) = t1 */
296 bslli r11, r12, 24 /* h = v << 24 */
297 addi r4, r4,-4 /* n = n - 4 */
298 bneid r4, a_wu3_loop /* while (n) loop */
299 addi r10, r10, 4 /* offset = ofset + 4 (IN DELAY SLOT) */
300
301 bri a_word_done
302
303a_word_u1:
304 bslli r11, r11, 8 /* h = h << 8 */
305a_wu1_loop:
306 lw r12, r8, r10 /* v = *(as + offset) */
307 bsrli r9, r12, 24 /* t1 = v >> 24 */
308 or r9, r11, r9 /* t1 = h | t1 */
309 sw r9, r5, r10 /* *(d + offset) = t1 */
310 bslli r11, r12, 8 /* h = v << 8 */
311 addi r4, r4,-4 /* n = n - 4 */
312 bneid r4, a_wu1_loop /* while (n) loop */
313 addi r10, r10, 4 /* offset = ofset + 4 (IN DELAY SLOT) */
314
315 bri a_word_done
316
317a_word_u2:
318 bslli r11, r11, 16 /* h = h << 16 */
319a_wu2_loop:
320 lw r12, r8, r10 /* v = *(as + offset) */
321 bsrli r9, r12, 16 /* t1 = v >> 16 */
322 or r9, r11, r9 /* t1 = h | t1 */
323 sw r9, r5, r10 /* *(d + offset) = t1 */
324 bslli r11, r12, 16 /* h = v << 16 */
325 addi r4, r4,-4 /* n = n - 4 */
326 bneid r4, a_wu2_loop /* while (n) loop */
327 addi r10, r10, 4 /* offset = ofset + 4 (IN DELAY SLOT) */
328
329a_word_done:
330 add r5, r5, r10 /* d = d + offset */
331 add r6, r6, r10 /* s = s + offset */
332 rsub r7, r10, r7 /* c = c - offset */
333
334a_xfer_end:
335a_xfer_end_loop:
336 beqi r7, a_done /* while (c) */
337 lbui r9, r6, 0 /* t1 = *s */
338 addi r6, r6, 1 /* s++ */
339 sbi r9, r5, 0 /* *d = t1 */
340 addi r7, r7, -1 /* c-- */
341 brid a_xfer_end_loop /* loop */
342 addi r5, r5, 1 /* d++ (IN DELAY SLOT) */
343
344a_done:
345 rtsd r15, 8
346 nop
347
348.end memcpy
349/*----------------------------------------------------------------------------*/
350 .globl memmove
351 .ent memmove
352
353memmove:
354 cmpu r4, r5, r6 /* n = s - d */
355 bgei r4,fast_memcpy_ascending
356
357fast_memcpy_descending:
358 /* move d to return register as value of function */
359 addi r3, r5, 0
360
361 add r5, r5, r7 /* d = d + c */
362 add r6, r6, r7 /* s = s + c */
363
364 addi r4, r0, 4 /* n = 4 */
365 cmpu r4, r4, r7 /* n = c - n (unsigned) */
366 blti r4,d_xfer_end /* if n < 0, less than one word to transfer */
367
368 /* transfer first 0~3 bytes to get aligned dest address */
369 andi r4, r5, 3 /* n = d & 3 */
370 /* if zero, destination already aligned */
371 beqi r4,d_dalign_done
372 rsub r7, r4, r7 /* c = c - n adjust c */
373
374d_xfer_first_loop:
375 /* if no bytes left to transfer, transfer the bulk */
376 beqi r4,d_dalign_done
377 addi r6, r6, -1 /* s-- */
378 addi r5, r5, -1 /* d-- */
379 lbui r11, r6, 0 /* h = *s */
380 sbi r11, r5, 0 /* *d = h */
381 brid d_xfer_first_loop /* loop */
382 addi r4, r4, -1 /* n-- (IN DELAY SLOT) */
383
384d_dalign_done:
385 addi r4, r0, 32 /* n = 32 */
386 cmpu r4, r4, r7 /* n = c - n (unsigned) */
387 /* if n < 0, less than one block to transfer */
388 blti r4, d_block_done
389
390d_block_xfer:
391 andi r4, r7, 0xffffffe0 /* n = c & ~31 */
392 rsub r7, r4, r7 /* c = c - n */
393
394 andi r9, r6, 3 /* t1 = s & 3 */
395 /* if temp != 0, unaligned transfers needed */
396 bnei r9, d_block_unaligned
397
398d_block_aligned:
399 addi r6, r6, -32 /* s = s - 32 */
400 addi r5, r5, -32 /* d = d - 32 */
401 lwi r9, r6, 28 /* t1 = *(s + 28) */
402 lwi r10, r6, 24 /* t2 = *(s + 24) */
403 lwi r11, r6, 20 /* t3 = *(s + 20) */
404 lwi r12, r6, 16 /* t4 = *(s + 16) */
405 swi r9, r5, 28 /* *(d + 28) = t1 */
406 swi r10, r5, 24 /* *(d + 24) = t2 */
407 swi r11, r5, 20 /* *(d + 20) = t3 */
408 swi r12, r5, 16 /* *(d + 16) = t4 */
409 lwi r9, r6, 12 /* t1 = *(s + 12) */
410 lwi r10, r6, 8 /* t2 = *(s + 8) */
411 lwi r11, r6, 4 /* t3 = *(s + 4) */
412 lwi r12, r6, 0 /* t4 = *(s + 0) */
413 swi r9, r5, 12 /* *(d + 12) = t1 */
414 swi r10, r5, 8 /* *(d + 8) = t2 */
415 swi r11, r5, 4 /* *(d + 4) = t3 */
416 addi r4, r4, -32 /* n = n - 32 */
417 bneid r4, d_block_aligned /* while (n) loop */
418 swi r12, r5, 0 /* *(d + 0) = t4 (IN DELAY SLOT) */
419 bri d_block_done
420
421d_block_unaligned:
422 andi r8, r6, 0xfffffffc /* as = s & ~3 */
423 rsub r6, r4, r6 /* s = s - n */
424 lwi r11, r8, 0 /* h = *(as + 0) */
425
426 addi r9, r9, -1
427 beqi r9,d_block_u1 /* t1 was 1 => 1 byte offset */
428 addi r9, r9, -1
429 beqi r9,d_block_u2 /* t1 was 2 => 2 byte offset */
430
431d_block_u3:
432 bsrli r11, r11, 8 /* h = h >> 8 */
433d_bu3_loop:
434 addi r8, r8, -32 /* as = as - 32 */
435 addi r5, r5, -32 /* d = d - 32 */
436 lwi r12, r8, 28 /* v = *(as + 28) */
437 bslli r9, r12, 24 /* t1 = v << 24 */
438 or r9, r11, r9 /* t1 = h | t1 */
439 swi r9, r5, 28 /* *(d + 28) = t1 */
440 bsrli r11, r12, 8 /* h = v >> 8 */
441 lwi r12, r8, 24 /* v = *(as + 24) */
442 bslli r9, r12, 24 /* t1 = v << 24 */
443 or r9, r11, r9 /* t1 = h | t1 */
444 swi r9, r5, 24 /* *(d + 24) = t1 */
445 bsrli r11, r12, 8 /* h = v >> 8 */
446 lwi r12, r8, 20 /* v = *(as + 20) */
447 bslli r9, r12, 24 /* t1 = v << 24 */
448 or r9, r11, r9 /* t1 = h | t1 */
449 swi r9, r5, 20 /* *(d + 20) = t1 */
450 bsrli r11, r12, 8 /* h = v >> 8 */
451 lwi r12, r8, 16 /* v = *(as + 16) */
452 bslli r9, r12, 24 /* t1 = v << 24 */
453 or r9, r11, r9 /* t1 = h | t1 */
454 swi r9, r5, 16 /* *(d + 16) = t1 */
455 bsrli r11, r12, 8 /* h = v >> 8 */
456 lwi r12, r8, 12 /* v = *(as + 12) */
457 bslli r9, r12, 24 /* t1 = v << 24 */
458 or r9, r11, r9 /* t1 = h | t1 */
459 swi r9, r5, 12 /* *(d + 112) = t1 */
460 bsrli r11, r12, 8 /* h = v >> 8 */
461 lwi r12, r8, 8 /* v = *(as + 8) */
462 bslli r9, r12, 24 /* t1 = v << 24 */
463 or r9, r11, r9 /* t1 = h | t1 */
464 swi r9, r5, 8 /* *(d + 8) = t1 */
465 bsrli r11, r12, 8 /* h = v >> 8 */
466 lwi r12, r8, 4 /* v = *(as + 4) */
467 bslli r9, r12, 24 /* t1 = v << 24 */
468 or r9, r11, r9 /* t1 = h | t1 */
469 swi r9, r5, 4 /* *(d + 4) = t1 */
470 bsrli r11, r12, 8 /* h = v >> 8 */
471 lwi r12, r8, 0 /* v = *(as + 0) */
472 bslli r9, r12, 24 /* t1 = v << 24 */
473 or r9, r11, r9 /* t1 = h | t1 */
474 swi r9, r5, 0 /* *(d + 0) = t1 */
475 addi r4, r4, -32 /* n = n - 32 */
476 bneid r4, d_bu3_loop /* while (n) loop */
477 bsrli r11, r12, 8 /* h = v >> 8 (IN DELAY SLOT) */
478 bri d_block_done
479
480d_block_u1:
481 bsrli r11, r11, 24 /* h = h >> 24 */
482d_bu1_loop:
483 addi r8, r8, -32 /* as = as - 32 */
484 addi r5, r5, -32 /* d = d - 32 */
485 lwi r12, r8, 28 /* v = *(as + 28) */
486 bslli r9, r12, 8 /* t1 = v << 8 */
487 or r9, r11, r9 /* t1 = h | t1 */
488 swi r9, r5, 28 /* *(d + 28) = t1 */
489 bsrli r11, r12, 24 /* h = v >> 24 */
490 lwi r12, r8, 24 /* v = *(as + 24) */
491 bslli r9, r12, 8 /* t1 = v << 8 */
492 or r9, r11, r9 /* t1 = h | t1 */
493 swi r9, r5, 24 /* *(d + 24) = t1 */
494 bsrli r11, r12, 24 /* h = v >> 24 */
495 lwi r12, r8, 20 /* v = *(as + 20) */
496 bslli r9, r12, 8 /* t1 = v << 8 */
497 or r9, r11, r9 /* t1 = h | t1 */
498 swi r9, r5, 20 /* *(d + 20) = t1 */
499 bsrli r11, r12, 24 /* h = v >> 24 */
500 lwi r12, r8, 16 /* v = *(as + 16) */
501 bslli r9, r12, 8 /* t1 = v << 8 */
502 or r9, r11, r9 /* t1 = h | t1 */
503 swi r9, r5, 16 /* *(d + 16) = t1 */
504 bsrli r11, r12, 24 /* h = v >> 24 */
505 lwi r12, r8, 12 /* v = *(as + 12) */
506 bslli r9, r12, 8 /* t1 = v << 8 */
507 or r9, r11, r9 /* t1 = h | t1 */
508 swi r9, r5, 12 /* *(d + 112) = t1 */
509 bsrli r11, r12, 24 /* h = v >> 24 */
510 lwi r12, r8, 8 /* v = *(as + 8) */
511 bslli r9, r12, 8 /* t1 = v << 8 */
512 or r9, r11, r9 /* t1 = h | t1 */
513 swi r9, r5, 8 /* *(d + 8) = t1 */
514 bsrli r11, r12, 24 /* h = v >> 24 */
515 lwi r12, r8, 4 /* v = *(as + 4) */
516 bslli r9, r12, 8 /* t1 = v << 8 */
517 or r9, r11, r9 /* t1 = h | t1 */
518 swi r9, r5, 4 /* *(d + 4) = t1 */
519 bsrli r11, r12, 24 /* h = v >> 24 */
520 lwi r12, r8, 0 /* v = *(as + 0) */
521 bslli r9, r12, 8 /* t1 = v << 8 */
522 or r9, r11, r9 /* t1 = h | t1 */
523 swi r9, r5, 0 /* *(d + 0) = t1 */
524 addi r4, r4, -32 /* n = n - 32 */
525 bneid r4, d_bu1_loop /* while (n) loop */
526 bsrli r11, r12, 24 /* h = v >> 24 (IN DELAY SLOT) */
527 bri d_block_done
528
529d_block_u2:
530 bsrli r11, r11, 16 /* h = h >> 16 */
531d_bu2_loop:
532 addi r8, r8, -32 /* as = as - 32 */
533 addi r5, r5, -32 /* d = d - 32 */
534 lwi r12, r8, 28 /* v = *(as + 28) */
535 bslli r9, r12, 16 /* t1 = v << 16 */
536 or r9, r11, r9 /* t1 = h | t1 */
537 swi r9, r5, 28 /* *(d + 28) = t1 */
538 bsrli r11, r12, 16 /* h = v >> 16 */
539 lwi r12, r8, 24 /* v = *(as + 24) */
540 bslli r9, r12, 16 /* t1 = v << 16 */
541 or r9, r11, r9 /* t1 = h | t1 */
542 swi r9, r5, 24 /* *(d + 24) = t1 */
543 bsrli r11, r12, 16 /* h = v >> 16 */
544 lwi r12, r8, 20 /* v = *(as + 20) */
545 bslli r9, r12, 16 /* t1 = v << 16 */
546 or r9, r11, r9 /* t1 = h | t1 */
547 swi r9, r5, 20 /* *(d + 20) = t1 */
548 bsrli r11, r12, 16 /* h = v >> 16 */
549 lwi r12, r8, 16 /* v = *(as + 16) */
550 bslli r9, r12, 16 /* t1 = v << 16 */
551 or r9, r11, r9 /* t1 = h | t1 */
552 swi r9, r5, 16 /* *(d + 16) = t1 */
553 bsrli r11, r12, 16 /* h = v >> 16 */
554 lwi r12, r8, 12 /* v = *(as + 12) */
555 bslli r9, r12, 16 /* t1 = v << 16 */
556 or r9, r11, r9 /* t1 = h | t1 */
557 swi r9, r5, 12 /* *(d + 112) = t1 */
558 bsrli r11, r12, 16 /* h = v >> 16 */
559 lwi r12, r8, 8 /* v = *(as + 8) */
560 bslli r9, r12, 16 /* t1 = v << 16 */
561 or r9, r11, r9 /* t1 = h | t1 */
562 swi r9, r5, 8 /* *(d + 8) = t1 */
563 bsrli r11, r12, 16 /* h = v >> 16 */
564 lwi r12, r8, 4 /* v = *(as + 4) */
565 bslli r9, r12, 16 /* t1 = v << 16 */
566 or r9, r11, r9 /* t1 = h | t1 */
567 swi r9, r5, 4 /* *(d + 4) = t1 */
568 bsrli r11, r12, 16 /* h = v >> 16 */
569 lwi r12, r8, 0 /* v = *(as + 0) */
570 bslli r9, r12, 16 /* t1 = v << 16 */
571 or r9, r11, r9 /* t1 = h | t1 */
572 swi r9, r5, 0 /* *(d + 0) = t1 */
573 addi r4, r4, -32 /* n = n - 32 */
574 bneid r4, d_bu2_loop /* while (n) loop */
575 bsrli r11, r12, 16 /* h = v >> 16 (IN DELAY SLOT) */
576
577d_block_done:
578 addi r4, r0, 4 /* n = 4 */
579 cmpu r4, r4, r7 /* n = c - n (unsigned) */
580 blti r4,d_xfer_end /* if n < 0, less than one word to transfer */
581
582d_word_xfer:
583 andi r4, r7, 0xfffffffc /* n = c & ~3 */
584 rsub r5, r4, r5 /* d = d - n */
585 rsub r6, r4, r6 /* s = s - n */
586 rsub r7, r4, r7 /* c = c - n */
587
588 andi r9, r6, 3 /* t1 = s & 3 */
589 /* if temp != 0, unaligned transfers needed */
590 bnei r9, d_word_unaligned
591
592d_word_aligned:
593 addi r4, r4,-4 /* n-- */
594 lw r9, r6, r4 /* t1 = *(s+n) */
595 bneid r4, d_word_aligned /* loop */
596 sw r9, r5, r4 /* *(d+n) = t1 (IN DELAY SLOT) */
597
598 bri d_word_done
599
600d_word_unaligned:
601 andi r8, r6, 0xfffffffc /* as = s & ~3 */
602 lw r11, r8, r4 /* h = *(as + n) */
603
604 addi r9, r9, -1
605 beqi r9,d_word_u1 /* t1 was 1 => 1 byte offset */
606 addi r9, r9, -1
607 beqi r9,d_word_u2 /* t1 was 2 => 2 byte offset */
608
609d_word_u3:
610 bsrli r11, r11, 8 /* h = h >> 8 */
611d_wu3_loop:
612 addi r4, r4,-4 /* n = n - 4 */
613 lw r12, r8, r4 /* v = *(as + n) */
614 bslli r9, r12, 24 /* t1 = v << 24 */
615 or r9, r11, r9 /* t1 = h | t1 */
616 sw r9, r5, r4 /* *(d + n) = t1 */
617 bneid r4, d_wu3_loop /* while (n) loop */
618 bsrli r11, r12, 8 /* h = v >> 8 (IN DELAY SLOT) */
619
620 bri d_word_done
621
622d_word_u1:
623 bsrli r11, r11, 24 /* h = h >> 24 */
624d_wu1_loop:
625 addi r4, r4,-4 /* n = n - 4 */
626 lw r12, r8, r4 /* v = *(as + n) */
627 bslli r9, r12, 8 /* t1 = v << 8 */
628 or r9, r11, r9 /* t1 = h | t1 */
629 sw r9, r5, r4 /* *(d + n) = t1 */
630 bneid r4, d_wu1_loop /* while (n) loop */
631 bsrli r11, r12, 24 /* h = v >> 24 (IN DELAY SLOT) */
632
633 bri d_word_done
634
635d_word_u2:
636 bsrli r11, r11, 16 /* h = h >> 16 */
637d_wu2_loop:
638 addi r4, r4,-4 /* n = n - 4 */
639 lw r12, r8, r4 /* v = *(as + n) */
640 bslli r9, r12, 16 /* t1 = v << 16 */
641 or r9, r11, r9 /* t1 = h | t1 */
642 sw r9, r5, r4 /* *(d + n) = t1 */
643 bneid r4, d_wu2_loop /* while (n) loop */
644 bsrli r11, r12, 16 /* h = v >> 16 (IN DELAY SLOT) */
645
646d_word_done:
647
648d_xfer_end:
649d_xfer_end_loop:
650 beqi r7, a_done /* while (c) */
651 addi r6, r6, -1 /* s-- */
652 lbui r9, r6, 0 /* t1 = *s */
653 addi r5, r5, -1 /* d-- */
654 sbi r9, r5, 0 /* *d = t1 */
655 brid d_xfer_end_loop /* loop */
656 addi r7, r7, -1 /* c-- (IN DELAY SLOT) */
657
658d_done:
659 rtsd r15, 8
660 nop
661
662.end memmove
diff --git a/arch/microblaze/lib/memcpy.c b/arch/microblaze/lib/memcpy.c
new file mode 100644
index 000000000000..5880119c4487
--- /dev/null
+++ b/arch/microblaze/lib/memcpy.c
@@ -0,0 +1,161 @@
1/*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2007 John Williams
5 *
6 * Reasonably optimised generic C-code for memcpy on Microblaze
7 * This is generic C code to do efficient, alignment-aware memcpy.
8 *
9 * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
10 * http://www.embedded.com/showArticle.jhtml?articleID=19205567
11 *
12 * Attempts were made, unsuccesfully, to contact the original
13 * author of this code (Michael Morrow, Intel). Below is the original
14 * copyright notice.
15 *
16 * This software has been developed by Intel Corporation.
17 * Intel specifically disclaims all warranties, express or
18 * implied, and all liability, including consequential and
19 * other indirect damages, for the use of this program, including
20 * liability for infringement of any proprietary rights,
21 * and including the warranties of merchantability and fitness
22 * for a particular purpose. Intel does not assume any
23 * responsibility for and errors which may appear in this program
24 * not any responsibility to update it.
25 */
26
27#include <linux/types.h>
28#include <linux/stddef.h>
29#include <linux/compiler.h>
30#include <linux/module.h>
31
32#include <linux/string.h>
33#include <asm/system.h>
34
35#ifdef __HAVE_ARCH_MEMCPY
36void *memcpy(void *v_dst, const void *v_src, __kernel_size_t c)
37{
38 const char *src = v_src;
39 char *dst = v_dst;
40#ifndef CONFIG_OPT_LIB_FUNCTION
41 /* Simple, byte oriented memcpy. */
42 while (c--)
43 *dst++ = *src++;
44
45 return v_dst;
46#else
47 /* The following code tries to optimize the copy by using unsigned
48 * alignment. This will work fine if both source and destination are
49 * aligned on the same boundary. However, if they are aligned on
50 * different boundaries shifts will be necessary. This might result in
51 * bad performance on MicroBlaze systems without a barrel shifter.
52 */
53 const uint32_t *i_src;
54 uint32_t *i_dst;
55
56 if (c >= 4) {
57 unsigned value, buf_hold;
58
59 /* Align the dstination to a word boundry. */
60 /* This is done in an endian independant manner. */
61 switch ((unsigned long)dst & 3) {
62 case 1:
63 *dst++ = *src++;
64 --c;
65 case 2:
66 *dst++ = *src++;
67 --c;
68 case 3:
69 *dst++ = *src++;
70 --c;
71 }
72
73 i_dst = (void *)dst;
74
75 /* Choose a copy scheme based on the source */
76 /* alignment relative to dstination. */
77 switch ((unsigned long)src & 3) {
78 case 0x0: /* Both byte offsets are aligned */
79 i_src = (const void *)src;
80
81 for (; c >= 4; c -= 4)
82 *i_dst++ = *i_src++;
83
84 src = (const void *)i_src;
85 break;
86 case 0x1: /* Unaligned - Off by 1 */
87 /* Word align the source */
88 i_src = (const void *) ((unsigned)src & ~3);
89
90 /* Load the holding buffer */
91 buf_hold = *i_src++ << 8;
92
93 for (; c >= 4; c -= 4) {
94 value = *i_src++;
95 *i_dst++ = buf_hold | value >> 24;
96 buf_hold = value << 8;
97 }
98
99 /* Realign the source */
100 src = (const void *)i_src;
101 src -= 3;
102 break;
103 case 0x2: /* Unaligned - Off by 2 */
104 /* Word align the source */
105 i_src = (const void *) ((unsigned)src & ~3);
106
107 /* Load the holding buffer */
108 buf_hold = *i_src++ << 16;
109
110 for (; c >= 4; c -= 4) {
111 value = *i_src++;
112 *i_dst++ = buf_hold | value >> 16;
113 buf_hold = value << 16;
114 }
115
116 /* Realign the source */
117 src = (const void *)i_src;
118 src -= 2;
119 break;
120 case 0x3: /* Unaligned - Off by 3 */
121 /* Word align the source */
122 i_src = (const void *) ((unsigned)src & ~3);
123
124 /* Load the holding buffer */
125 buf_hold = *i_src++ << 24;
126
127 for (; c >= 4; c -= 4) {
128 value = *i_src++;
129 *i_dst++ = buf_hold | value >> 8;
130 buf_hold = value << 24;
131 }
132
133 /* Realign the source */
134 src = (const void *)i_src;
135 src -= 1;
136 break;
137 }
138 dst = (void *)i_dst;
139 }
140
141 /* Finish off any remaining bytes */
142 /* simple fast copy, ... unless a cache boundry is crossed */
143 switch (c) {
144 case 3:
145 *dst++ = *src++;
146 case 2:
147 *dst++ = *src++;
148 case 1:
149 *dst++ = *src++;
150 }
151
152 return v_dst;
153#endif
154}
155EXPORT_SYMBOL(memcpy);
156#endif /* __HAVE_ARCH_MEMCPY */
157
158void *cacheable_memcpy(void *d, const void *s, __kernel_size_t c)
159{
160 return memcpy(d, s, c);
161}
diff --git a/arch/microblaze/lib/memmove.c b/arch/microblaze/lib/memmove.c
new file mode 100644
index 000000000000..d4e9f49a71f7
--- /dev/null
+++ b/arch/microblaze/lib/memmove.c
@@ -0,0 +1,175 @@
1/*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2007 John Williams
5 *
6 * Reasonably optimised generic C-code for memcpy on Microblaze
7 * This is generic C code to do efficient, alignment-aware memmove.
8 *
9 * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
10 * http://www.embedded.com/showArticle.jhtml?articleID=19205567
11 *
12 * Attempts were made, unsuccesfully, to contact the original
13 * author of this code (Michael Morrow, Intel). Below is the original
14 * copyright notice.
15 *
16 * This software has been developed by Intel Corporation.
17 * Intel specifically disclaims all warranties, express or
18 * implied, and all liability, including consequential and
19 * other indirect damages, for the use of this program, including
20 * liability for infringement of any proprietary rights,
21 * and including the warranties of merchantability and fitness
22 * for a particular purpose. Intel does not assume any
23 * responsibility for and errors which may appear in this program
24 * not any responsibility to update it.
25 */
26
27#include <linux/types.h>
28#include <linux/stddef.h>
29#include <linux/compiler.h>
30#include <linux/module.h>
31#include <linux/string.h>
32
33#ifdef __HAVE_ARCH_MEMMOVE
34void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
35{
36 const char *src = v_src;
37 char *dst = v_dst;
38
39#ifdef CONFIG_OPT_LIB_FUNCTION
40 const uint32_t *i_src;
41 uint32_t *i_dst;
42#endif
43
44 if (!c)
45 return v_dst;
46
47 /* Use memcpy when source is higher than dest */
48 if (v_dst <= v_src)
49 return memcpy(v_dst, v_src, c);
50
51#ifndef CONFIG_OPT_LIB_FUNCTION
52 /* copy backwards, from end to beginning */
53 src += c;
54 dst += c;
55
56 /* Simple, byte oriented memmove. */
57 while (c--)
58 *--dst = *--src;
59
60 return v_dst;
61#else
62 /* The following code tries to optimize the copy by using unsigned
63 * alignment. This will work fine if both source and destination are
64 * aligned on the same boundary. However, if they are aligned on
65 * different boundaries shifts will be necessary. This might result in
66 * bad performance on MicroBlaze systems without a barrel shifter.
67 */
68 /* FIXME this part needs more test */
69 /* Do a descending copy - this is a bit trickier! */
70 dst += c;
71 src += c;
72
73 if (c >= 4) {
74 unsigned value, buf_hold;
75
76 /* Align the destination to a word boundry. */
77 /* This is done in an endian independant manner. */
78
79 switch ((unsigned long)dst & 3) {
80 case 3:
81 *--dst = *--src;
82 --c;
83 case 2:
84 *--dst = *--src;
85 --c;
86 case 1:
87 *--dst = *--src;
88 --c;
89 }
90
91 i_dst = (void *)dst;
92 /* Choose a copy scheme based on the source */
93 /* alignment relative to dstination. */
94 switch ((unsigned long)src & 3) {
95 case 0x0: /* Both byte offsets are aligned */
96
97 i_src = (const void *)src;
98
99 for (; c >= 4; c -= 4)
100 *--i_dst = *--i_src;
101
102 src = (const void *)i_src;
103 break;
104 case 0x1: /* Unaligned - Off by 1 */
105 /* Word align the source */
106 i_src = (const void *) (((unsigned)src + 4) & ~3);
107
108 /* Load the holding buffer */
109 buf_hold = *--i_src >> 24;
110
111 for (; c >= 4; c -= 4) {
112 value = *--i_src;
113 *--i_dst = buf_hold << 8 | value;
114 buf_hold = value >> 24;
115 }
116
117 /* Realign the source */
118 src = (const void *)i_src;
119 src += 1;
120 break;
121 case 0x2: /* Unaligned - Off by 2 */
122 /* Word align the source */
123 i_src = (const void *) (((unsigned)src + 4) & ~3);
124
125 /* Load the holding buffer */
126 buf_hold = *--i_src >> 16;
127
128 for (; c >= 4; c -= 4) {
129 value = *--i_src;
130 *--i_dst = buf_hold << 16 | value;
131 buf_hold = value >> 16;
132 }
133
134 /* Realign the source */
135 src = (const void *)i_src;
136 src += 2;
137 break;
138 case 0x3: /* Unaligned - Off by 3 */
139 /* Word align the source */
140 i_src = (const void *) (((unsigned)src + 4) & ~3);
141
142 /* Load the holding buffer */
143 buf_hold = *--i_src >> 8;
144
145 for (; c >= 4; c -= 4) {
146 value = *--i_src;
147 *--i_dst = buf_hold << 24 | value;
148 buf_hold = value >> 8;
149 }
150
151 /* Realign the source */
152 src = (const void *)i_src;
153 src += 3;
154 break;
155 }
156 dst = (void *)i_dst;
157 }
158
159 /* simple fast copy, ... unless a cache boundry is crossed */
160 /* Finish off any remaining bytes */
161 switch (c) {
162 case 4:
163 *--dst = *--src;
164 case 3:
165 *--dst = *--src;
166 case 2:
167 *--dst = *--src;
168 case 1:
169 *--dst = *--src;
170 }
171 return v_dst;
172#endif
173}
174EXPORT_SYMBOL(memmove);
175#endif /* __HAVE_ARCH_MEMMOVE */
diff --git a/arch/microblaze/lib/memset.c b/arch/microblaze/lib/memset.c
new file mode 100644
index 000000000000..941dc8f94b03
--- /dev/null
+++ b/arch/microblaze/lib/memset.c
@@ -0,0 +1,82 @@
1/*
2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2008-2009 PetaLogix
4 * Copyright (C) 2007 John Williams
5 *
6 * Reasonably optimised generic C-code for memset on Microblaze
7 * This is generic C code to do efficient, alignment-aware memcpy.
8 *
9 * It is based on demo code originally Copyright 2001 by Intel Corp, taken from
10 * http://www.embedded.com/showArticle.jhtml?articleID=19205567
11 *
12 * Attempts were made, unsuccesfully, to contact the original
13 * author of this code (Michael Morrow, Intel). Below is the original
14 * copyright notice.
15 *
16 * This software has been developed by Intel Corporation.
17 * Intel specifically disclaims all warranties, express or
18 * implied, and all liability, including consequential and
19 * other indirect damages, for the use of this program, including
20 * liability for infringement of any proprietary rights,
21 * and including the warranties of merchantability and fitness
22 * for a particular purpose. Intel does not assume any
23 * responsibility for and errors which may appear in this program
24 * not any responsibility to update it.
25 */
26
27#include <linux/types.h>
28#include <linux/stddef.h>
29#include <linux/compiler.h>
30#include <linux/module.h>
31#include <linux/string.h>
32
33#ifdef __HAVE_ARCH_MEMSET
34void *memset(void *v_src, int c, __kernel_size_t n)
35{
36
37 char *src = v_src;
38#ifdef CONFIG_OPT_LIB_FUNCTION
39 uint32_t *i_src;
40 uint32_t w32;
41#endif
42 /* Truncate c to 8 bits */
43 c = (c & 0xFF);
44
45#ifdef CONFIG_OPT_LIB_FUNCTION
46 /* Make a repeating word out of it */
47 w32 = c;
48 w32 |= w32 << 8;
49 w32 |= w32 << 16;
50
51 if (n >= 4) {
52 /* Align the destination to a word boundary */
53 /* This is done in an endian independant manner */
54 switch ((unsigned) src & 3) {
55 case 1:
56 *src++ = c;
57 --n;
58 case 2:
59 *src++ = c;
60 --n;
61 case 3:
62 *src++ = c;
63 --n;
64 }
65
66 i_src = (void *)src;
67
68 /* Do as many full-word copies as we can */
69 for (; n >= 4; n -= 4)
70 *i_src++ = w32;
71
72 src = (void *)i_src;
73 }
74#endif
75 /* Simple, byte oriented memset or the rest of count. */
76 while (n--)
77 *src++ = c;
78
79 return v_src;
80}
81EXPORT_SYMBOL(memset);
82#endif /* __HAVE_ARCH_MEMSET */
diff --git a/arch/microblaze/lib/uaccess.c b/arch/microblaze/lib/uaccess.c
new file mode 100644
index 000000000000..8eb9df5a26c9
--- /dev/null
+++ b/arch/microblaze/lib/uaccess.c
@@ -0,0 +1,41 @@
1/*
2 * Copyright (C) 2006 Atmark Techno, Inc.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 */
8
9#include <linux/string.h>
10#include <asm/uaccess.h>
11
12#include <asm/bug.h>
13
14long strnlen_user(const char __user *src, long count)
15{
16 return strlen(src) + 1;
17}
18
19#define __do_strncpy_from_user(dst, src, count, res) \
20 do { \
21 char *tmp; \
22 strncpy(dst, src, count); \
23 for (tmp = dst; *tmp && count > 0; tmp++, count--) \
24 ; \
25 res = (tmp - dst); \
26 } while (0)
27
28long __strncpy_from_user(char *dst, const char __user *src, long count)
29{
30 long res;
31 __do_strncpy_from_user(dst, src, count, res);
32 return res;
33}
34
35long strncpy_from_user(char *dst, const char __user *src, long count)
36{
37 long res = -EFAULT;
38 if (access_ok(VERIFY_READ, src, 1))
39 __do_strncpy_from_user(dst, src, count, res);
40 return res;
41}
diff --git a/arch/microblaze/mm/Makefile b/arch/microblaze/mm/Makefile
new file mode 100644
index 000000000000..bf9e4479a1fd
--- /dev/null
+++ b/arch/microblaze/mm/Makefile
@@ -0,0 +1,5 @@
1#
2# Makefile
3#
4
5obj-y := init.o
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
new file mode 100644
index 000000000000..b0c8213cd6cf
--- /dev/null
+++ b/arch/microblaze/mm/init.c
@@ -0,0 +1,201 @@
1/*
2 * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2006 Atmark Techno, Inc.
4 *
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
9
10#include <linux/bootmem.h>
11#include <linux/init.h>
12#include <linux/kernel.h>
13#include <linux/lmb.h>
14#include <linux/mm.h> /* mem_init */
15#include <linux/initrd.h>
16#include <linux/pagemap.h>
17#include <linux/pfn.h>
18#include <linux/swap.h>
19
20#include <asm/page.h>
21#include <asm/mmu_context.h>
22#include <asm/pgalloc.h>
23#include <asm/sections.h>
24#include <asm/tlb.h>
25
26unsigned int __page_offset;
27/* EXPORT_SYMBOL(__page_offset); */
28
29char *klimit = _end;
30
31/*
32 * Initialize the bootmem system and give it all the memory we
33 * have available.
34 */
35unsigned int memory_start;
36unsigned int memory_end; /* due to mm/nommu.c */
37unsigned int memory_size;
38
39/*
40 * paging_init() sets up the page tables - in fact we've already done this.
41 */
42static void __init paging_init(void)
43{
44 int i;
45 unsigned long zones_size[MAX_NR_ZONES];
46
47 /*
48 * old: we can DMA to/from any address.put all page into ZONE_DMA
49 * We use only ZONE_NORMAL
50 */
51 zones_size[ZONE_NORMAL] = max_mapnr;
52
53 /* every other zones are empty */
54 for (i = 1; i < MAX_NR_ZONES; i++)
55 zones_size[i] = 0;
56
57 free_area_init(zones_size);
58}
59
60void __init setup_memory(void)
61{
62 int i;
63 unsigned long map_size;
64 u32 kernel_align_start, kernel_align_size;
65
66 /* Find main memory where is the kernel */
67 for (i = 0; i < lmb.memory.cnt; i++) {
68 memory_start = (u32) lmb.memory.region[i].base;
69 memory_end = (u32) lmb.memory.region[i].base
70 + (u32) lmb.memory.region[i].size;
71 if ((memory_start <= (u32)_text) &&
72 ((u32)_text <= memory_end)) {
73 memory_size = memory_end - memory_start;
74 PAGE_OFFSET = memory_start;
75 printk(KERN_INFO "%s: Main mem: 0x%x-0x%x, "
76 "size 0x%08x\n", __func__, memory_start,
77 memory_end, memory_size);
78 break;
79 }
80 }
81
82 if (!memory_start || !memory_end) {
83 panic("%s: Missing memory setting 0x%08x-0x%08x\n",
84 __func__, memory_start, memory_end);
85 }
86
87 /* reservation of region where is the kernel */
88 kernel_align_start = PAGE_DOWN((u32)_text);
89 /* ALIGN can be remove because _end in vmlinux.lds.S is align */
90 kernel_align_size = PAGE_UP((u32)klimit) - kernel_align_start;
91 lmb_reserve(kernel_align_start, kernel_align_size);
92 printk(KERN_INFO "%s: kernel addr=0x%08x-0x%08x size=0x%08x\n",
93 __func__, kernel_align_start, kernel_align_start
94 + kernel_align_size, kernel_align_size);
95
96 /*
97 * Kernel:
98 * start: base phys address of kernel - page align
99 * end: base phys address of kernel - page align
100 *
101 * min_low_pfn - the first page (mm/bootmem.c - node_boot_start)
102 * max_low_pfn
103 * max_mapnr - the first unused page (mm/bootmem.c - node_low_pfn)
104 * num_physpages - number of all pages
105 */
106
107 /* memory start is from the kernel end (aligned) to higher addr */
108 min_low_pfn = memory_start >> PAGE_SHIFT; /* minimum for allocation */
109 /* RAM is assumed contiguous */
110 num_physpages = max_mapnr = memory_size >> PAGE_SHIFT;
111 max_pfn = max_low_pfn = memory_end >> PAGE_SHIFT;
112
113 printk(KERN_INFO "%s: max_mapnr: %#lx\n", __func__, max_mapnr);
114 printk(KERN_INFO "%s: min_low_pfn: %#lx\n", __func__, min_low_pfn);
115 printk(KERN_INFO "%s: max_low_pfn: %#lx\n", __func__, max_low_pfn);
116
117 /*
118 * Find an area to use for the bootmem bitmap.
119 * We look for the first area which is at least
120 * 128kB in length (128kB is enough for a bitmap
121 * for 4GB of memory, using 4kB pages), plus 1 page
122 * (in case the address isn't page-aligned).
123 */
124 map_size = init_bootmem_node(NODE_DATA(0), PFN_UP(TOPHYS((u32)_end)),
125 min_low_pfn, max_low_pfn);
126
127 lmb_reserve(PFN_UP(TOPHYS((u32)_end)) << PAGE_SHIFT, map_size);
128
129 /* free bootmem is whole main memory */
130 free_bootmem(memory_start, memory_size);
131
132 /* reserve allocate blocks */
133 for (i = 0; i < lmb.reserved.cnt; i++) {
134 pr_debug("reserved %d - 0x%08x-0x%08x\n", i,
135 (u32) lmb.reserved.region[i].base,
136 (u32) lmb_size_bytes(&lmb.reserved, i));
137 reserve_bootmem(lmb.reserved.region[i].base,
138 lmb_size_bytes(&lmb.reserved, i) - 1, BOOTMEM_DEFAULT);
139 }
140 paging_init();
141}
142
143void free_init_pages(char *what, unsigned long begin, unsigned long end)
144{
145 unsigned long addr;
146
147 for (addr = begin; addr < end; addr += PAGE_SIZE) {
148 ClearPageReserved(virt_to_page(addr));
149 init_page_count(virt_to_page(addr));
150 memset((void *)addr, 0xcc, PAGE_SIZE);
151 free_page(addr);
152 totalram_pages++;
153 }
154 printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
155}
156
157#ifdef CONFIG_BLK_DEV_INITRD
158void free_initrd_mem(unsigned long start, unsigned long end)
159{
160 int pages = 0;
161 for (; start < end; start += PAGE_SIZE) {
162 ClearPageReserved(virt_to_page(start));
163 init_page_count(virt_to_page(start));
164 free_page(start);
165 totalram_pages++;
166 pages++;
167 }
168 printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages);
169}
170#endif
171
172void free_initmem(void)
173{
174 free_init_pages("unused kernel memory",
175 (unsigned long)(&__init_begin),
176 (unsigned long)(&__init_end));
177}
178
179/* FIXME from arch/powerpc/mm/mem.c*/
180void show_mem(void)
181{
182 printk(KERN_NOTICE "%s\n", __func__);
183}
184
185void __init mem_init(void)
186{
187 high_memory = (void *)__va(memory_end);
188 /* this will put all memory onto the freelists */
189 totalram_pages += free_all_bootmem();
190
191 printk(KERN_INFO "Memory: %luk/%luk available\n",
192 (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
193 num_physpages << (PAGE_SHIFT-10));
194}
195
196/* Check against bounds of physical memory */
197int ___range_ok(unsigned long addr, unsigned long size)
198{
199 return ((addr < memory_start) ||
200 ((addr + size) > memory_end));
201}
diff --git a/arch/microblaze/platform/Kconfig.platform b/arch/microblaze/platform/Kconfig.platform
new file mode 100644
index 000000000000..8e9b4752d3ff
--- /dev/null
+++ b/arch/microblaze/platform/Kconfig.platform
@@ -0,0 +1,85 @@
1# For a description of the syntax of this configuration file,
2# see Documentation/kbuild/kconfig-language.txt.
3#
4# Platform selection Kconfig menu for MicroBlaze targets
5#
6
7menu "Platform options"
8choice
9 prompt "Platform"
10 default PLATFORM_MICROBLAZE_AUTO
11 help
12 Choose which hardware board/platform you are targeting.
13
14config PLATFORM_GENERIC
15 bool "Generic"
16 help
17 Choose this option for the Generic platform.
18
19endchoice
20
21config SELFMOD
22 bool "Use self modified code for intc/timer"
23 depends on EXPERIMENTAL && NO_MMU
24 default n
25 help
26 This choice enables self-modified code for interrupt controller
27 and timer.
28
29config SELFMOD_INTC
30 bool "Use self modified code for intc"
31 depends on SELFMOD
32 default y
33 help
34 This choice enables self-modified code for interrupt controller.
35
36config SELFMOD_TIMER
37 bool "Use self modified code for timer"
38 depends on SELFMOD
39 default y
40 help
41 This choice enables self-modified code for timer.
42
43config OPT_LIB_FUNCTION
44 bool "Optimalized lib function"
45 default y
46 help
47 Allows turn on optimalized library function (memcpy and memmove).
48 They are optimized by using word alignment. This will work
49 fine if both source and destination are aligned on the same
50 boundary. However, if they are aligned on different boundaries
51 shifts will be necessary. This might result in bad performance
52 on MicroBlaze systems without a barrel shifter.
53
54config OPT_LIB_ASM
55 bool "Optimalized lib function ASM"
56 depends on OPT_LIB_FUNCTION
57 default n
58 help
59 Allows turn on optimalized library function (memcpy and memmove).
60 Function are written in asm code.
61
62# This is still a bit broken - disabling for now JW 20070504
63config ALLOW_EDIT_AUTO
64 bool "Permit Display/edit of Kconfig.auto platform settings"
65 default n
66 help
67 Allows the editing of auto-generated platform settings from
68 the Kconfig.auto file. Obviously this does not change the
69 underlying hardware, so be very careful if you go editing
70 these settings.
71
72 Also, if you enable this, and edit various Kconfig.auto
73 settings, YOUR CHANGES WILL BE LOST if you then disable it
74 again. You have been warned!
75
76 If unsure, say no.
77
78comment "Automatic platform settings from Kconfig.auto"
79 depends on ALLOW_EDIT_AUTO
80
81if PLATFORM_GENERIC=y
82 source "arch/microblaze/platform/generic/Kconfig.auto"
83endif
84
85endmenu
diff --git a/arch/microblaze/platform/Makefile b/arch/microblaze/platform/Makefile
new file mode 100644
index 000000000000..ea1b75cc5775
--- /dev/null
+++ b/arch/microblaze/platform/Makefile
@@ -0,0 +1,6 @@
1#
2# Makefile for arch/microblaze/platform directory
3#
4#obj-$(CONFIG_PLATFORM_GENERIC) += generic/
5
6obj-y += platform.o
diff --git a/arch/microblaze/platform/generic/Kconfig.auto b/arch/microblaze/platform/generic/Kconfig.auto
new file mode 100644
index 000000000000..fbca22d9c8b9
--- /dev/null
+++ b/arch/microblaze/platform/generic/Kconfig.auto
@@ -0,0 +1,62 @@
1#
2# (C) Copyright 2007 Michal Simek
3#
4# Michal SIMEK <monstr@monstr.eu>
5#
6# This program is free software; you can redistribute it and/or
7# modify it under the terms of the GNU General Public License as
8# published by the Free Software Foundation; either version 2 of
9# the License, or (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program; if not, write to the Free Software
18# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19# MA 02111-1307 USA
20#
21
22# Definitions for MICROBLAZE0
23comment "Definitions for MICROBLAZE0"
24 depends on ALLOW_EDIT_AUTO
25
26config KERNEL_BASE_ADDR
27 hex "Physical address where Linux Kernel is"
28 default "0x90000000"
29 help
30 BASE Address for kernel
31
32config XILINX_MICROBLAZE0_FAMILY
33 string "Targetted FPGA family" if ALLOW_EDIT_AUTO
34 default "virtex5"
35
36config XILINX_MICROBLAZE0_USE_MSR_INSTR
37 int "USE_MSR_INSTR range (0:1)" if ALLOW_EDIT_AUTO
38 default 1
39
40config XILINX_MICROBLAZE0_USE_PCMP_INSTR
41 int "USE_PCMP_INSTR range (0:1)" if ALLOW_EDIT_AUTO
42 default 1
43
44config XILINX_MICROBLAZE0_USE_BARREL
45 int "USE_BARREL range (0:1)" if ALLOW_EDIT_AUTO
46 default 1
47
48config XILINX_MICROBLAZE0_USE_DIV
49 int "USE_DIV range (0:1)" if ALLOW_EDIT_AUTO
50 default 1
51
52config XILINX_MICROBLAZE0_USE_HW_MUL
53 int "USE_HW_MUL values (0=NONE, 1=MUL32, 2=MUL64)" if ALLOW_EDIT_AUTO
54 default 2
55
56config XILINX_MICROBLAZE0_USE_FPU
57 int "USE_FPU values (0=NONE, 1=BASIC, 2=EXTENDED)" if ALLOW_EDIT_AUTO
58 default 2
59
60config XILINX_MICROBLAZE0_HW_VER
61 string "Core version number" if ALLOW_EDIT_AUTO
62 default 7.10.d
diff --git a/arch/microblaze/platform/generic/Makefile b/arch/microblaze/platform/generic/Makefile
new file mode 100644
index 000000000000..9a8b1bd3fa6d
--- /dev/null
+++ b/arch/microblaze/platform/generic/Makefile
@@ -0,0 +1,3 @@
1#
2# Empty Makefile to keep make clean happy
3#
diff --git a/arch/microblaze/platform/generic/system.dts b/arch/microblaze/platform/generic/system.dts
new file mode 100644
index 000000000000..29993f62b30a
--- /dev/null
+++ b/arch/microblaze/platform/generic/system.dts
@@ -0,0 +1,332 @@
1/*
2 * Device Tree Generator version: 1.1
3 *
4 * (C) Copyright 2007-2008 Xilinx, Inc.
5 * (C) Copyright 2007-2009 Michal Simek
6 *
7 * Michal SIMEK <monstr@monstr.eu>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 *
24 * CAUTION: This file is automatically generated by libgen.
25 * Version: Xilinx EDK 10.1.03 EDK_K_SP3.6
26 *
27 * XPS project directory: Xilinx-ML505-ll_temac-sgdma-MMU-FDT-edk101
28 */
29
30/dts-v1/;
31/ {
32 #address-cells = <1>;
33 #size-cells = <1>;
34 compatible = "xlnx,microblaze";
35 model = "testing";
36 DDR2_SDRAM: memory@90000000 {
37 device_type = "memory";
38 reg = < 0x90000000 0x10000000 >;
39 } ;
40 chosen {
41 bootargs = "console=ttyUL0,115200 highres=on";
42 linux,stdout-path = "/plb@0/serial@84000000";
43 } ;
44 cpus {
45 #address-cells = <1>;
46 #cpus = <0x1>;
47 #size-cells = <0>;
48 microblaze_0: cpu@0 {
49 clock-frequency = <125000000>;
50 compatible = "xlnx,microblaze-7.10.d";
51 d-cache-baseaddr = <0x90000000>;
52 d-cache-highaddr = <0x9fffffff>;
53 d-cache-line-size = <0x10>;
54 d-cache-size = <0x2000>;
55 device_type = "cpu";
56 i-cache-baseaddr = <0x90000000>;
57 i-cache-highaddr = <0x9fffffff>;
58 i-cache-line-size = <0x10>;
59 i-cache-size = <0x2000>;
60 model = "microblaze,7.10.d";
61 reg = <0>;
62 timebase-frequency = <125000000>;
63 xlnx,addr-tag-bits = <0xf>;
64 xlnx,allow-dcache-wr = <0x1>;
65 xlnx,allow-icache-wr = <0x1>;
66 xlnx,area-optimized = <0x0>;
67 xlnx,cache-byte-size = <0x2000>;
68 xlnx,d-lmb = <0x1>;
69 xlnx,d-opb = <0x0>;
70 xlnx,d-plb = <0x1>;
71 xlnx,data-size = <0x20>;
72 xlnx,dcache-addr-tag = <0xf>;
73 xlnx,dcache-always-used = <0x1>;
74 xlnx,dcache-byte-size = <0x2000>;
75 xlnx,dcache-line-len = <0x4>;
76 xlnx,dcache-use-fsl = <0x1>;
77 xlnx,debug-enabled = <0x1>;
78 xlnx,div-zero-exception = <0x1>;
79 xlnx,dopb-bus-exception = <0x0>;
80 xlnx,dynamic-bus-sizing = <0x1>;
81 xlnx,edge-is-positive = <0x1>;
82 xlnx,family = "virtex5";
83 xlnx,fpu-exception = <0x1>;
84 xlnx,fsl-data-size = <0x20>;
85 xlnx,fsl-exception = <0x0>;
86 xlnx,fsl-links = <0x0>;
87 xlnx,i-lmb = <0x1>;
88 xlnx,i-opb = <0x0>;
89 xlnx,i-plb = <0x1>;
90 xlnx,icache-always-used = <0x1>;
91 xlnx,icache-line-len = <0x4>;
92 xlnx,icache-use-fsl = <0x1>;
93 xlnx,ill-opcode-exception = <0x1>;
94 xlnx,instance = "microblaze_0";
95 xlnx,interconnect = <0x1>;
96 xlnx,interrupt-is-edge = <0x0>;
97 xlnx,iopb-bus-exception = <0x0>;
98 xlnx,mmu-dtlb-size = <0x4>;
99 xlnx,mmu-itlb-size = <0x2>;
100 xlnx,mmu-tlb-access = <0x3>;
101 xlnx,mmu-zones = <0x10>;
102 xlnx,number-of-pc-brk = <0x1>;
103 xlnx,number-of-rd-addr-brk = <0x0>;
104 xlnx,number-of-wr-addr-brk = <0x0>;
105 xlnx,opcode-0x0-illegal = <0x1>;
106 xlnx,pvr = <0x2>;
107 xlnx,pvr-user1 = <0x0>;
108 xlnx,pvr-user2 = <0x0>;
109 xlnx,reset-msr = <0x0>;
110 xlnx,sco = <0x0>;
111 xlnx,unaligned-exceptions = <0x1>;
112 xlnx,use-barrel = <0x1>;
113 xlnx,use-dcache = <0x1>;
114 xlnx,use-div = <0x1>;
115 xlnx,use-ext-brk = <0x1>;
116 xlnx,use-ext-nm-brk = <0x1>;
117 xlnx,use-extended-fsl-instr = <0x0>;
118 xlnx,use-fpu = <0x2>;
119 xlnx,use-hw-mul = <0x2>;
120 xlnx,use-icache = <0x1>;
121 xlnx,use-interrupt = <0x1>;
122 xlnx,use-mmu = <0x3>;
123 xlnx,use-msr-instr = <0x1>;
124 xlnx,use-pcmp-instr = <0x1>;
125 } ;
126 } ;
127 mb_plb: plb@0 {
128 #address-cells = <1>;
129 #size-cells = <1>;
130 compatible = "xlnx,plb-v46-1.03.a", "simple-bus";
131 ranges ;
132 FLASH: flash@a0000000 {
133 bank-width = <2>;
134 compatible = "xlnx,xps-mch-emc-2.00.a", "cfi-flash";
135 reg = < 0xa0000000 0x2000000 >;
136 xlnx,family = "virtex5";
137 xlnx,include-datawidth-matching-0 = <0x1>;
138 xlnx,include-datawidth-matching-1 = <0x0>;
139 xlnx,include-datawidth-matching-2 = <0x0>;
140 xlnx,include-datawidth-matching-3 = <0x0>;
141 xlnx,include-negedge-ioregs = <0x0>;
142 xlnx,include-plb-ipif = <0x1>;
143 xlnx,include-wrbuf = <0x1>;
144 xlnx,max-mem-width = <0x10>;
145 xlnx,mch-native-dwidth = <0x20>;
146 xlnx,mch-plb-clk-period-ps = <0x1f40>;
147 xlnx,mch-splb-awidth = <0x20>;
148 xlnx,mch0-accessbuf-depth = <0x10>;
149 xlnx,mch0-protocol = <0x0>;
150 xlnx,mch0-rddatabuf-depth = <0x10>;
151 xlnx,mch1-accessbuf-depth = <0x10>;
152 xlnx,mch1-protocol = <0x0>;
153 xlnx,mch1-rddatabuf-depth = <0x10>;
154 xlnx,mch2-accessbuf-depth = <0x10>;
155 xlnx,mch2-protocol = <0x0>;
156 xlnx,mch2-rddatabuf-depth = <0x10>;
157 xlnx,mch3-accessbuf-depth = <0x10>;
158 xlnx,mch3-protocol = <0x0>;
159 xlnx,mch3-rddatabuf-depth = <0x10>;
160 xlnx,mem0-width = <0x10>;
161 xlnx,mem1-width = <0x20>;
162 xlnx,mem2-width = <0x20>;
163 xlnx,mem3-width = <0x20>;
164 xlnx,num-banks-mem = <0x1>;
165 xlnx,num-channels = <0x0>;
166 xlnx,priority-mode = <0x0>;
167 xlnx,synch-mem-0 = <0x0>;
168 xlnx,synch-mem-1 = <0x0>;
169 xlnx,synch-mem-2 = <0x0>;
170 xlnx,synch-mem-3 = <0x0>;
171 xlnx,synch-pipedelay-0 = <0x2>;
172 xlnx,synch-pipedelay-1 = <0x2>;
173 xlnx,synch-pipedelay-2 = <0x2>;
174 xlnx,synch-pipedelay-3 = <0x2>;
175 xlnx,tavdv-ps-mem-0 = <0x1adb0>;
176 xlnx,tavdv-ps-mem-1 = <0x3a98>;
177 xlnx,tavdv-ps-mem-2 = <0x3a98>;
178 xlnx,tavdv-ps-mem-3 = <0x3a98>;
179 xlnx,tcedv-ps-mem-0 = <0x1adb0>;
180 xlnx,tcedv-ps-mem-1 = <0x3a98>;
181 xlnx,tcedv-ps-mem-2 = <0x3a98>;
182 xlnx,tcedv-ps-mem-3 = <0x3a98>;
183 xlnx,thzce-ps-mem-0 = <0x88b8>;
184 xlnx,thzce-ps-mem-1 = <0x1b58>;
185 xlnx,thzce-ps-mem-2 = <0x1b58>;
186 xlnx,thzce-ps-mem-3 = <0x1b58>;
187 xlnx,thzoe-ps-mem-0 = <0x1b58>;
188 xlnx,thzoe-ps-mem-1 = <0x1b58>;
189 xlnx,thzoe-ps-mem-2 = <0x1b58>;
190 xlnx,thzoe-ps-mem-3 = <0x1b58>;
191 xlnx,tlzwe-ps-mem-0 = <0x88b8>;
192 xlnx,tlzwe-ps-mem-1 = <0x0>;
193 xlnx,tlzwe-ps-mem-2 = <0x0>;
194 xlnx,tlzwe-ps-mem-3 = <0x0>;
195 xlnx,twc-ps-mem-0 = <0x2af8>;
196 xlnx,twc-ps-mem-1 = <0x3a98>;
197 xlnx,twc-ps-mem-2 = <0x3a98>;
198 xlnx,twc-ps-mem-3 = <0x3a98>;
199 xlnx,twp-ps-mem-0 = <0x11170>;
200 xlnx,twp-ps-mem-1 = <0x2ee0>;
201 xlnx,twp-ps-mem-2 = <0x2ee0>;
202 xlnx,twp-ps-mem-3 = <0x2ee0>;
203 xlnx,xcl0-linesize = <0x4>;
204 xlnx,xcl0-writexfer = <0x1>;
205 xlnx,xcl1-linesize = <0x4>;
206 xlnx,xcl1-writexfer = <0x1>;
207 xlnx,xcl2-linesize = <0x4>;
208 xlnx,xcl2-writexfer = <0x1>;
209 xlnx,xcl3-linesize = <0x4>;
210 xlnx,xcl3-writexfer = <0x1>;
211 } ;
212 Hard_Ethernet_MAC: xps-ll-temac@81c00000 {
213 #address-cells = <1>;
214 #size-cells = <1>;
215 compatible = "xlnx,compound";
216 ethernet@81c00000 {
217 compatible = "xlnx,xps-ll-temac-1.01.b";
218 device_type = "network";
219 interrupt-parent = <&xps_intc_0>;
220 interrupts = < 5 2 >;
221 llink-connected = <&PIM3>;
222 local-mac-address = [ 02 00 00 00 00 00 ];
223 reg = < 0x81c00000 0x40 >;
224 xlnx,bus2core-clk-ratio = <0x1>;
225 xlnx,phy-type = <0x1>;
226 xlnx,phyaddr = <0x1>;
227 xlnx,rxcsum = <0x0>;
228 xlnx,rxfifo = <0x1000>;
229 xlnx,temac-type = <0x0>;
230 xlnx,txcsum = <0x0>;
231 xlnx,txfifo = <0x1000>;
232 } ;
233 } ;
234 IIC_EEPROM: i2c@81600000 {
235 compatible = "xlnx,xps-iic-2.00.a";
236 interrupt-parent = <&xps_intc_0>;
237 interrupts = < 6 2 >;
238 reg = < 0x81600000 0x10000 >;
239 xlnx,clk-freq = <0x7735940>;
240 xlnx,family = "virtex5";
241 xlnx,gpo-width = <0x1>;
242 xlnx,iic-freq = <0x186a0>;
243 xlnx,scl-inertial-delay = <0x0>;
244 xlnx,sda-inertial-delay = <0x0>;
245 xlnx,ten-bit-adr = <0x0>;
246 } ;
247 LEDs_8Bit: gpio@81400000 {
248 compatible = "xlnx,xps-gpio-1.00.a";
249 interrupt-parent = <&xps_intc_0>;
250 interrupts = < 7 2 >;
251 reg = < 0x81400000 0x10000 >;
252 xlnx,all-inputs = <0x0>;
253 xlnx,all-inputs-2 = <0x0>;
254 xlnx,dout-default = <0x0>;
255 xlnx,dout-default-2 = <0x0>;
256 xlnx,family = "virtex5";
257 xlnx,gpio-width = <0x8>;
258 xlnx,interrupt-present = <0x1>;
259 xlnx,is-bidir = <0x1>;
260 xlnx,is-bidir-2 = <0x1>;
261 xlnx,is-dual = <0x0>;
262 xlnx,tri-default = <0xffffffff>;
263 xlnx,tri-default-2 = <0xffffffff>;
264 } ;
265 RS232_Uart_1: serial@84000000 {
266 clock-frequency = <125000000>;
267 compatible = "xlnx,xps-uartlite-1.00.a";
268 current-speed = <115200>;
269 device_type = "serial";
270 interrupt-parent = <&xps_intc_0>;
271 interrupts = < 8 0 >;
272 port-number = <0>;
273 reg = < 0x84000000 0x10000 >;
274 xlnx,baudrate = <0x1c200>;
275 xlnx,data-bits = <0x8>;
276 xlnx,family = "virtex5";
277 xlnx,odd-parity = <0x0>;
278 xlnx,use-parity = <0x0>;
279 } ;
280 SysACE_CompactFlash: sysace@83600000 {
281 compatible = "xlnx,xps-sysace-1.00.a";
282 interrupt-parent = <&xps_intc_0>;
283 interrupts = < 4 2 >;
284 reg = < 0x83600000 0x10000 >;
285 xlnx,family = "virtex5";
286 xlnx,mem-width = <0x10>;
287 } ;
288 debug_module: debug@84400000 {
289 compatible = "xlnx,mdm-1.00.d";
290 reg = < 0x84400000 0x10000 >;
291 xlnx,family = "virtex5";
292 xlnx,interconnect = <0x1>;
293 xlnx,jtag-chain = <0x2>;
294 xlnx,mb-dbg-ports = <0x1>;
295 xlnx,uart-width = <0x8>;
296 xlnx,use-uart = <0x1>;
297 xlnx,write-fsl-ports = <0x0>;
298 } ;
299 mpmc@90000000 {
300 #address-cells = <1>;
301 #size-cells = <1>;
302 compatible = "xlnx,mpmc-4.02.a";
303 PIM3: sdma@84600180 {
304 compatible = "xlnx,ll-dma-1.00.a";
305 interrupt-parent = <&xps_intc_0>;
306 interrupts = < 2 2 1 2 >;
307 reg = < 0x84600180 0x80 >;
308 } ;
309 } ;
310 xps_intc_0: interrupt-controller@81800000 {
311 #interrupt-cells = <0x2>;
312 compatible = "xlnx,xps-intc-1.00.a";
313 interrupt-controller ;
314 reg = < 0x81800000 0x10000 >;
315 xlnx,kind-of-intr = <0x100>;
316 xlnx,num-intr-inputs = <0x9>;
317 } ;
318 xps_timer_1: timer@83c00000 {
319 compatible = "xlnx,xps-timer-1.00.a";
320 interrupt-parent = <&xps_intc_0>;
321 interrupts = < 3 2 >;
322 reg = < 0x83c00000 0x10000 >;
323 xlnx,count-width = <0x20>;
324 xlnx,family = "virtex5";
325 xlnx,gen0-assert = <0x1>;
326 xlnx,gen1-assert = <0x1>;
327 xlnx,one-timer-only = <0x0>;
328 xlnx,trig0-assert = <0x1>;
329 xlnx,trig1-assert = <0x1>;
330 } ;
331 } ;
332} ;
diff --git a/arch/microblaze/platform/platform.c b/arch/microblaze/platform/platform.c
new file mode 100644
index 000000000000..56e0234fa34b
--- /dev/null
+++ b/arch/microblaze/platform/platform.c
@@ -0,0 +1,31 @@
1/*
2 * Copyright 2008 Michal Simek <monstr@monstr.eu>
3 *
4 * based on virtex.c file
5 *
6 * Copyright 2007 Secret Lab Technologies Ltd.
7 *
8 * This file is licensed under the terms of the GNU General Public License
9 * version 2. This program is licensed "as is" without any warranty of any
10 * kind, whether express or implied.
11 */
12
13#include <linux/init.h>
14#include <linux/of_platform.h>
15#include <asm/prom.h>
16
17static struct of_device_id xilinx_of_bus_ids[] __initdata = {
18 { .compatible = "simple-bus", },
19 { .compatible = "xlnx,plb-v46-1.00.a", },
20 { .compatible = "xlnx,opb-v20-1.10.c", },
21 { .compatible = "xlnx,opb-v20-1.10.b", },
22 { .compatible = "xlnx,compound", },
23 {}
24};
25
26static int __init microblaze_device_probe(void)
27{
28 of_platform_bus_probe(NULL, xilinx_of_bus_ids, NULL);
29 return 0;
30}
31device_initcall(microblaze_device_probe);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-29 13:39:17 -0500