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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2006-09-26 02:32:13 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 11:48:54 -0400
commit5f97f7f9400de47ae837170bb274e90ad3934386 (patch)
tree514451e6dc6b46253293a00035d375e77b1c65ed
parent53e62d3aaa60590d4a69b4e07c29f448b5151047 (diff)
[PATCH] avr32 architecture
This adds support for the Atmel AVR32 architecture as well as the AT32AP7000 CPU and the AT32STK1000 development board. AVR32 is a new high-performance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications, with particular emphasis on low power consumption and high code density. The AVR32 architecture is not binary compatible with earlier 8-bit AVR architectures. The AVR32 architecture, including the instruction set, is described by the AVR32 Architecture Manual, available from http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf The Atmel AT32AP7000 is the first CPU implementing the AVR32 architecture. It features a 7-stage pipeline, 16KB instruction and data caches and a full Memory Management Unit. It also comes with a large set of integrated peripherals, many of which are shared with the AT91 ARM-based controllers from Atmel. Full data sheet is available from http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf while the CPU core implementation including caches and MMU is documented by the AVR32 AP Technical Reference, available from http://www.atmel.com/dyn/resources/prod_documents/doc32001.pdf Information about the AT32STK1000 development board can be found at http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3918 including a BSP CD image with an earlier version of this patch, development tools (binaries and source/patches) and a root filesystem image suitable for booting from SD card. Alternatively, there's a preliminary "getting started" guide available at http://avr32linux.org/twiki/bin/view/Main/GettingStarted which provides links to the sources and patches you will need in order to set up a cross-compiling environment for avr32-linux. This patch, as well as the other patches included with the BSP and the toolchain patches, is actively supported by Atmel Corporation. [dmccr@us.ibm.com: Fix more pxx_page macro locations] [bunk@stusta.de: fix `make defconfig'] Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave McCracken <dmccr@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--MAINTAINERS17
-rw-r--r--arch/avr32/Kconfig196
-rw-r--r--arch/avr32/Kconfig.debug19
-rw-r--r--arch/avr32/Makefile84
-rw-r--r--arch/avr32/boards/atstk1000/Makefile2
-rw-r--r--arch/avr32/boards/atstk1000/atstk1002.c37
-rw-r--r--arch/avr32/boards/atstk1000/setup.c59
-rw-r--r--arch/avr32/boards/atstk1000/spi.c27
-rw-r--r--arch/avr32/boot/images/Makefile62
-rw-r--r--arch/avr32/boot/u-boot/Makefile3
-rw-r--r--arch/avr32/boot/u-boot/empty.S1
-rw-r--r--arch/avr32/boot/u-boot/head.S60
-rw-r--r--arch/avr32/configs/atstk1002_defconfig754
-rw-r--r--arch/avr32/kernel/Makefile18
-rw-r--r--arch/avr32/kernel/asm-offsets.c25
-rw-r--r--arch/avr32/kernel/avr32_ksyms.c55
-rw-r--r--arch/avr32/kernel/cpu.c327
-rw-r--r--arch/avr32/kernel/entry-avr32b.S678
-rw-r--r--arch/avr32/kernel/head.S45
-rw-r--r--arch/avr32/kernel/init_task.c38
-rw-r--r--arch/avr32/kernel/irq.c71
-rw-r--r--arch/avr32/kernel/kprobes.c270
-rw-r--r--arch/avr32/kernel/module.c324
-rw-r--r--arch/avr32/kernel/process.c276
-rw-r--r--arch/avr32/kernel/ptrace.c371
-rw-r--r--arch/avr32/kernel/semaphore.c148
-rw-r--r--arch/avr32/kernel/setup.c335
-rw-r--r--arch/avr32/kernel/signal.c328
-rw-r--r--arch/avr32/kernel/switch_to.S35
-rw-r--r--arch/avr32/kernel/sys_avr32.c51
-rw-r--r--arch/avr32/kernel/syscall-stubs.S102
-rw-r--r--arch/avr32/kernel/syscall_table.S289
-rw-r--r--arch/avr32/kernel/time.c238
-rw-r--r--arch/avr32/kernel/traps.c425
-rw-r--r--arch/avr32/kernel/vmlinux.lds.c139
-rw-r--r--arch/avr32/lib/Makefile10
-rw-r--r--arch/avr32/lib/__avr32_asr64.S31
-rw-r--r--arch/avr32/lib/__avr32_lsl64.S31
-rw-r--r--arch/avr32/lib/__avr32_lsr64.S31
-rw-r--r--arch/avr32/lib/clear_user.S76
-rw-r--r--arch/avr32/lib/copy_user.S119
-rw-r--r--arch/avr32/lib/csum_partial.S47
-rw-r--r--arch/avr32/lib/csum_partial_copy_generic.S99
-rw-r--r--arch/avr32/lib/delay.c55
-rw-r--r--arch/avr32/lib/findbit.S154
-rw-r--r--arch/avr32/lib/io-readsl.S24
-rw-r--r--arch/avr32/lib/io-readsw.S43
-rw-r--r--arch/avr32/lib/io-writesl.S20
-rw-r--r--arch/avr32/lib/io-writesw.S38
-rw-r--r--arch/avr32/lib/libgcc.h33
-rw-r--r--arch/avr32/lib/longlong.h98
-rw-r--r--arch/avr32/lib/memcpy.S62
-rw-r--r--arch/avr32/lib/memset.S72
-rw-r--r--arch/avr32/lib/strncpy_from_user.S60
-rw-r--r--arch/avr32/lib/strnlen_user.S67
-rw-r--r--arch/avr32/mach-at32ap/Makefile2
-rw-r--r--arch/avr32/mach-at32ap/at32ap.c90
-rw-r--r--arch/avr32/mach-at32ap/at32ap7000.c866
-rw-r--r--arch/avr32/mach-at32ap/clock.c148
-rw-r--r--arch/avr32/mach-at32ap/clock.h30
-rw-r--r--arch/avr32/mach-at32ap/extint.c171
-rw-r--r--arch/avr32/mach-at32ap/intc.c133
-rw-r--r--arch/avr32/mach-at32ap/intc.h327
-rw-r--r--arch/avr32/mach-at32ap/pio.c118
-rw-r--r--arch/avr32/mach-at32ap/pio.h178
-rw-r--r--arch/avr32/mach-at32ap/sm.c289
-rw-r--r--arch/avr32/mach-at32ap/sm.h240
-rw-r--r--arch/avr32/mm/Makefile6
-rw-r--r--arch/avr32/mm/cache.c150
-rw-r--r--arch/avr32/mm/clear_page.S25
-rw-r--r--arch/avr32/mm/copy_page.S28
-rw-r--r--arch/avr32/mm/dma-coherent.c139
-rw-r--r--arch/avr32/mm/fault.c315
-rw-r--r--arch/avr32/mm/init.c480
-rw-r--r--arch/avr32/mm/ioremap.c197
-rw-r--r--arch/avr32/mm/tlb.c378
-rw-r--r--include/asm-avr32/Kbuild3
-rw-r--r--include/asm-avr32/a.out.h26
-rw-r--r--include/asm-avr32/addrspace.h43
-rw-r--r--include/asm-avr32/arch-at32ap/at91rm9200_pdc.h36
-rw-r--r--include/asm-avr32/arch-at32ap/at91rm9200_usart.h123
-rw-r--r--include/asm-avr32/arch-at32ap/board.h35
-rw-r--r--include/asm-avr32/arch-at32ap/init.h21
-rw-r--r--include/asm-avr32/arch-at32ap/portmux.h16
-rw-r--r--include/asm-avr32/arch-at32ap/sm.h27
-rw-r--r--include/asm-avr32/asm.h102
-rw-r--r--include/asm-avr32/atomic.h201
-rw-r--r--include/asm-avr32/auxvec.h4
-rw-r--r--include/asm-avr32/bitops.h296
-rw-r--r--include/asm-avr32/bug.h47
-rw-r--r--include/asm-avr32/bugs.h15
-rw-r--r--include/asm-avr32/byteorder.h25
-rw-r--r--include/asm-avr32/cache.h29
-rw-r--r--include/asm-avr32/cachectl.h11
-rw-r--r--include/asm-avr32/cacheflush.h129
-rw-r--r--include/asm-avr32/checksum.h156
-rw-r--r--include/asm-avr32/cputime.h6
-rw-r--r--include/asm-avr32/current.h15
-rw-r--r--include/asm-avr32/delay.h26
-rw-r--r--include/asm-avr32/div64.h6
-rw-r--r--include/asm-avr32/dma-mapping.h320
-rw-r--r--include/asm-avr32/dma.h8
-rw-r--r--include/asm-avr32/elf.h110
-rw-r--r--include/asm-avr32/emergency-restart.h6
-rw-r--r--include/asm-avr32/errno.h6
-rw-r--r--include/asm-avr32/fcntl.h6
-rw-r--r--include/asm-avr32/futex.h6
-rw-r--r--include/asm-avr32/hardirq.h34
-rw-r--r--include/asm-avr32/hw_irq.h9
-rw-r--r--include/asm-avr32/intc.h128
-rw-r--r--include/asm-avr32/io.h253
-rw-r--r--include/asm-avr32/ioctl.h6
-rw-r--r--include/asm-avr32/ioctls.h83
-rw-r--r--include/asm-avr32/ipcbuf.h29
-rw-r--r--include/asm-avr32/irq.h10
-rw-r--r--include/asm-avr32/irqflags.h68
-rw-r--r--include/asm-avr32/kdebug.h38
-rw-r--r--include/asm-avr32/kmap_types.h30
-rw-r--r--include/asm-avr32/kprobes.h34
-rw-r--r--include/asm-avr32/linkage.h7
-rw-r--r--include/asm-avr32/local.h6
-rw-r--r--include/asm-avr32/mach/serial_at91.h33
-rw-r--r--include/asm-avr32/mman.h17
-rw-r--r--include/asm-avr32/mmu.h10
-rw-r--r--include/asm-avr32/mmu_context.h148
-rw-r--r--include/asm-avr32/module.h28
-rw-r--r--include/asm-avr32/msgbuf.h31
-rw-r--r--include/asm-avr32/mutex.h9
-rw-r--r--include/asm-avr32/namei.h7
-rw-r--r--include/asm-avr32/numnodes.h7
-rw-r--r--include/asm-avr32/ocd.h78
-rw-r--r--include/asm-avr32/page.h112
-rw-r--r--include/asm-avr32/param.h23
-rw-r--r--include/asm-avr32/pci.h8
-rw-r--r--include/asm-avr32/percpu.h6
-rw-r--r--include/asm-avr32/pgalloc.h96
-rw-r--r--include/asm-avr32/pgtable-2level.h47
-rw-r--r--include/asm-avr32/pgtable.h408
-rw-r--r--include/asm-avr32/poll.h27
-rw-r--r--include/asm-avr32/posix_types.h129
-rw-r--r--include/asm-avr32/processor.h147
-rw-r--r--include/asm-avr32/ptrace.h154
-rw-r--r--include/asm-avr32/resource.h6
-rw-r--r--include/asm-avr32/scatterlist.h21
-rw-r--r--include/asm-avr32/sections.h6
-rw-r--r--include/asm-avr32/semaphore.h109
-rw-r--r--include/asm-avr32/sembuf.h25
-rw-r--r--include/asm-avr32/setup.h141
-rw-r--r--include/asm-avr32/shmbuf.h42
-rw-r--r--include/asm-avr32/shmparam.h6
-rw-r--r--include/asm-avr32/sigcontext.h34
-rw-r--r--include/asm-avr32/siginfo.h6
-rw-r--r--include/asm-avr32/signal.h168
-rw-r--r--include/asm-avr32/socket.h53
-rw-r--r--include/asm-avr32/sockios.h12
-rw-r--r--include/asm-avr32/stat.h79
-rw-r--r--include/asm-avr32/statfs.h6
-rw-r--r--include/asm-avr32/string.h17
-rw-r--r--include/asm-avr32/sysreg.h332
-rw-r--r--include/asm-avr32/system.h155
-rw-r--r--include/asm-avr32/termbits.h173
-rw-r--r--include/asm-avr32/termios.h80
-rw-r--r--include/asm-avr32/thread_info.h106
-rw-r--r--include/asm-avr32/timex.h40
-rw-r--r--include/asm-avr32/tlb.h32
-rw-r--r--include/asm-avr32/tlbflush.h40
-rw-r--r--include/asm-avr32/topology.h6
-rw-r--r--include/asm-avr32/traps.h23
-rw-r--r--include/asm-avr32/types.h70
-rw-r--r--include/asm-avr32/uaccess.h335
-rw-r--r--include/asm-avr32/ucontext.h12
-rw-r--r--include/asm-avr32/unaligned.h25
-rw-r--r--include/asm-avr32/unistd.h387
-rw-r--r--include/asm-avr32/user.h65
-rw-r--r--include/linux/elf-em.h1
-rw-r--r--lib/Kconfig.debug4
176 files changed, 18124 insertions, 2 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 23348c0d37bc..767a43434ae8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -443,6 +443,23 @@ W: http://people.redhat.com/sgrubb/audit/
443T: git kernel.org:/pub/scm/linux/kernel/git/dwmw2/audit-2.6.git 443T: git kernel.org:/pub/scm/linux/kernel/git/dwmw2/audit-2.6.git
444S: Maintained 444S: Maintained
445 445
446AVR32 ARCHITECTURE
447P: Atmel AVR32 Support Team
448M: avr32@atmel.com
449P: Haavard Skinnemoen
450M: hskinnemoen@atmel.com
451W: http://www.atmel.com/products/AVR32/
452W: http://avr32linux.org/
453W: http://avrfreaks.net/
454S: Supported
455
456AVR32/AT32AP MACHINE SUPPORT
457P: Atmel AVR32 Support Team
458M: avr32@atmel.com
459P: Haavard Skinnemoen
460M: hskinnemoen@atmel.com
461S: Supported
462
446AX.25 NETWORK LAYER 463AX.25 NETWORK LAYER
447P: Ralf Baechle 464P: Ralf Baechle
448M: ralf@linux-mips.org 465M: ralf@linux-mips.org
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
new file mode 100644
index 000000000000..5f1694eea842
--- /dev/null
+++ b/arch/avr32/Kconfig
@@ -0,0 +1,196 @@
1#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config AVR32
9 bool
10 default y
11 # With EMBEDDED=n, we get lots of stuff automatically selected
12 # that we usually don't need on AVR32.
13 select EMBEDDED
14 help
15 AVR32 is a high-performance 32-bit RISC microprocessor core,
16 designed for cost-sensitive embedded applications, with particular
17 emphasis on low power consumption and high code density.
18
19 There is an AVR32 Linux project with a web page at
20 http://avr32linux.org/.
21
22config UID16
23 bool
24
25config GENERIC_HARDIRQS
26 bool
27 default y
28
29config HARDIRQS_SW_RESEND
30 bool
31 default y
32
33config GENERIC_IRQ_PROBE
34 bool
35 default y
36
37config RWSEM_GENERIC_SPINLOCK
38 bool
39 default y
40
41config GENERIC_TIME
42 bool
43 default y
44
45config RWSEM_XCHGADD_ALGORITHM
46 bool
47
48config GENERIC_BUST_SPINLOCK
49 bool
50
51config GENERIC_HWEIGHT
52 bool
53 default y
54
55config GENERIC_CALIBRATE_DELAY
56 bool
57 default y
58
59source "init/Kconfig"
60
61menu "System Type and features"
62
63config SUBARCH_AVR32B
64 bool
65config MMU
66 bool
67config PERFORMANCE_COUNTERS
68 bool
69
70config PLATFORM_AT32AP
71 bool
72 select SUBARCH_AVR32B
73 select MMU
74 select PERFORMANCE_COUNTERS
75
76choice
77 prompt "AVR32 CPU type"
78 default CPU_AT32AP7000
79
80config CPU_AT32AP7000
81 bool "AT32AP7000"
82 select PLATFORM_AT32AP
83endchoice
84
85#
86# CPU Daughterboards for ATSTK1000
87config BOARD_ATSTK1002
88 bool
89
90choice
91 prompt "AVR32 board type"
92 default BOARD_ATSTK1000
93
94config BOARD_ATSTK1000
95 bool "ATSTK1000 evaluation board"
96 select BOARD_ATSTK1002 if CPU_AT32AP7000
97endchoice
98
99choice
100 prompt "Boot loader type"
101 default LOADER_U_BOOT
102
103config LOADER_U_BOOT
104 bool "U-Boot (or similar) bootloader"
105endchoice
106
107config LOAD_ADDRESS
108 hex
109 default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
110
111config ENTRY_ADDRESS
112 hex
113 default 0x90000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y
114
115config PHYS_OFFSET
116 hex
117 default 0x10000000 if CPU_AT32AP7000=y
118
119source "kernel/Kconfig.preempt"
120
121config HAVE_ARCH_BOOTMEM_NODE
122 bool
123 default n
124
125config ARCH_HAVE_MEMORY_PRESENT
126 bool
127 default n
128
129config NEED_NODE_MEMMAP_SIZE
130 bool
131 default n
132
133config ARCH_FLATMEM_ENABLE
134 bool
135 default y
136
137config ARCH_DISCONTIGMEM_ENABLE
138 bool
139 default n
140
141config ARCH_SPARSEMEM_ENABLE
142 bool
143 default n
144
145source "mm/Kconfig"
146
147config OWNERSHIP_TRACE
148 bool "Ownership trace support"
149 default y
150 help
151 Say Y to generate an Ownership Trace message on every context switch,
152 enabling Nexus-compliant debuggers to keep track of the PID of the
153 currently executing task.
154
155# FPU emulation goes here
156
157source "kernel/Kconfig.hz"
158
159config CMDLINE
160 string "Default kernel command line"
161 default ""
162 help
163 If you don't have a boot loader capable of passing a command line string
164 to the kernel, you may specify one here. As a minimum, you should specify
165 the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
166
167endmenu
168
169menu "Bus options"
170
171config PCI
172 bool
173
174source "drivers/pci/Kconfig"
175
176source "drivers/pcmcia/Kconfig"
177
178endmenu
179
180menu "Executable file formats"
181source "fs/Kconfig.binfmt"
182endmenu
183
184source "net/Kconfig"
185
186source "drivers/Kconfig"
187
188source "fs/Kconfig"
189
190source "arch/avr32/Kconfig.debug"
191
192source "security/Kconfig"
193
194source "crypto/Kconfig"
195
196source "lib/Kconfig"
diff --git a/arch/avr32/Kconfig.debug b/arch/avr32/Kconfig.debug
new file mode 100644
index 000000000000..64ace00fe6cb
--- /dev/null
+++ b/arch/avr32/Kconfig.debug
@@ -0,0 +1,19 @@
1menu "Kernel hacking"
2
3config TRACE_IRQFLAGS_SUPPORT
4 bool
5 default y
6
7source "lib/Kconfig.debug"
8
9config KPROBES
10 bool "Kprobes"
11 depends on DEBUG_KERNEL
12 help
13 Kprobes allows you to trap at almost any kernel address and
14 execute a callback function. register_kprobe() establishes
15 a probepoint and specifies the callback. Kprobes is useful
16 for kernel debugging, non-intrusive instrumentation and testing.
17 If in doubt, say "N".
18
19endmenu
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
new file mode 100644
index 000000000000..cefc95a73980
--- /dev/null
+++ b/arch/avr32/Makefile
@@ -0,0 +1,84 @@
1#
2# This file is subject to the terms and conditions of the GNU General Public
3# License. See the file "COPYING" in the main directory of this archive
4# for more details.
5#
6# Copyright (C) 2004-2006 Atmel Corporation.
7
8# Default target when executing plain make
9.PHONY: all
10all: uImage vmlinux.elf linux.lst
11
12KBUILD_DEFCONFIG := atstk1002_defconfig
13
14CFLAGS += -pipe -fno-builtin -mno-pic
15AFLAGS += -mrelax -mno-pic
16CFLAGS_MODULE += -mno-relax
17LDFLAGS_vmlinux += --relax
18
19cpuflags-$(CONFIG_CPU_AP7000) += -mcpu=ap7000
20
21CFLAGS += $(cpuflags-y)
22AFLAGS += $(cpuflags-y)
23
24CHECKFLAGS += -D__avr32__
25
26LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
27
28head-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/head.o
29head-y += arch/avr32/kernel/head.o
30core-$(CONFIG_PLATFORM_AT32AP) += arch/avr32/mach-at32ap/
31core-$(CONFIG_BOARD_ATSTK1000) += arch/avr32/boards/atstk1000/
32core-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/
33core-y += arch/avr32/kernel/
34core-y += arch/avr32/mm/
35libs-y += arch/avr32/lib/ #$(LIBGCC)
36
37archincdir-$(CONFIG_PLATFORM_AT32AP) := arch-at32ap
38
39include/asm-avr32/.arch: $(wildcard include/config/platform/*.h) include/config/auto.conf
40 @echo ' SYMLINK include/asm-avr32/arch -> include/asm-avr32/$(archincdir-y)'
41ifneq ($(KBUILD_SRC),)
42 $(Q)mkdir -p include/asm-avr32
43 $(Q)ln -fsn $(srctree)/include/asm-avr32/$(archincdir-y) include/asm-avr32/arch
44else
45 $(Q)ln -fsn $(archincdir-y) include/asm-avr32/arch
46endif
47 @touch $@
48
49archprepare: include/asm-avr32/.arch
50
51BOOT_TARGETS := vmlinux.elf vmlinux.bin uImage uImage.srec
52
53.PHONY: $(BOOT_TARGETS) install
54
55boot := arch/$(ARCH)/boot/images
56
57 KBUILD_IMAGE := $(boot)/uImage
58vmlinux.elf: KBUILD_IMAGE := $(boot)/vmlinux.elf
59vmlinux.cso: KBUILD_IMAGE := $(boot)/vmlinux.cso
60uImage.srec: KBUILD_IMAGE := $(boot)/uImage.srec
61uImage: KBUILD_IMAGE := $(boot)/uImage
62
63quiet_cmd_listing = LST $@
64 cmd_listing = avr32-linux-objdump $(OBJDUMPFLAGS) -lS $< > $@
65quiet_cmd_disasm = DIS $@
66 cmd_disasm = avr32-linux-objdump $(OBJDUMPFLAGS) -d $< > $@
67
68vmlinux.elf vmlinux.bin uImage.srec uImage vmlinux.cso: vmlinux
69 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
70
71install: vmlinux
72 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
73
74linux.s: vmlinux
75 $(call if_changed,disasm)
76
77linux.lst: vmlinux
78 $(call if_changed,listing)
79
80define archhelp
81 @echo '* vmlinux.elf - ELF image with load address 0'
82 @echo ' vmlinux.cso - PathFinder CSO image'
83 @echo ' uImage - Create a bootable image for U-Boot'
84endef
diff --git a/arch/avr32/boards/atstk1000/Makefile b/arch/avr32/boards/atstk1000/Makefile
new file mode 100644
index 000000000000..c3e36ece8651
--- /dev/null
+++ b/arch/avr32/boards/atstk1000/Makefile
@@ -0,0 +1,2 @@
1obj-y += setup.o spi.o
2obj-$(CONFIG_BOARD_ATSTK1002) += atstk1002.o
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
new file mode 100644
index 000000000000..49164e9aadd6
--- /dev/null
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -0,0 +1,37 @@
1/*
2 * ATSTK1002 daughterboard-specific init code
3 *
4 * Copyright (C) 2005-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/init.h>
11
12#include <asm/arch/board.h>
13
14struct eth_platform_data __initdata eth0_data = {
15 .valid = 1,
16 .mii_phy_addr = 0x10,
17 .is_rmii = 0,
18 .hw_addr = { 0x6a, 0x87, 0x71, 0x14, 0xcd, 0xcb },
19};
20
21extern struct lcdc_platform_data atstk1000_fb0_data;
22
23static int __init atstk1002_init(void)
24{
25 at32_add_system_devices();
26
27 at32_add_device_usart(1); /* /dev/ttyS0 */
28 at32_add_device_usart(2); /* /dev/ttyS1 */
29 at32_add_device_usart(3); /* /dev/ttyS2 */
30
31 at32_add_device_eth(0, &eth0_data);
32 at32_add_device_spi(0);
33 at32_add_device_lcdc(0, &atstk1000_fb0_data);
34
35 return 0;
36}
37postcore_initcall(atstk1002_init);
diff --git a/arch/avr32/boards/atstk1000/setup.c b/arch/avr32/boards/atstk1000/setup.c
new file mode 100644
index 000000000000..191ab85de9a3
--- /dev/null
+++ b/arch/avr32/boards/atstk1000/setup.c
@@ -0,0 +1,59 @@
1/*
2 * ATSTK1000 board-specific setup code.
3 *
4 * Copyright (C) 2005-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/bootmem.h>
11#include <linux/init.h>
12#include <linux/types.h>
13#include <linux/linkage.h>
14
15#include <asm/setup.h>
16
17#include <asm/arch/board.h>
18
19/* Initialized by bootloader-specific startup code. */
20struct tag *bootloader_tags __initdata;
21
22struct lcdc_platform_data __initdata atstk1000_fb0_data;
23
24asmlinkage void __init board_early_init(void)
25{
26 extern void sdram_init(void);
27
28#ifdef CONFIG_LOADER_STANDALONE
29 sdram_init();
30#endif
31}
32
33void __init board_setup_fbmem(unsigned long fbmem_start,
34 unsigned long fbmem_size)
35{
36 if (!fbmem_size)
37 return;
38
39 if (!fbmem_start) {
40 void *fbmem;
41
42 fbmem = alloc_bootmem_low_pages(fbmem_size);
43 fbmem_start = __pa(fbmem);
44 } else {
45 pg_data_t *pgdat;
46
47 for_each_online_pgdat(pgdat) {
48 if (fbmem_start >= pgdat->bdata->node_boot_start
49 && fbmem_start <= pgdat->bdata->node_low_pfn)
50 reserve_bootmem_node(pgdat, fbmem_start,
51 fbmem_size);
52 }
53 }
54
55 printk("%luKiB framebuffer memory at address 0x%08lx\n",
56 fbmem_size >> 10, fbmem_start);
57 atstk1000_fb0_data.fbmem_start = fbmem_start;
58 atstk1000_fb0_data.fbmem_size = fbmem_size;
59}
diff --git a/arch/avr32/boards/atstk1000/spi.c b/arch/avr32/boards/atstk1000/spi.c
new file mode 100644
index 000000000000..567726c82c6e
--- /dev/null
+++ b/arch/avr32/boards/atstk1000/spi.c
@@ -0,0 +1,27 @@
1/*
2 * ATSTK1000 SPI devices
3 *
4 * Copyright (C) 2005 Atmel Norway
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/device.h>
11#include <linux/spi/spi.h>
12
13static struct spi_board_info spi_board_info[] __initdata = {
14 {
15 .modalias = "ltv350qv",
16 .max_speed_hz = 16000000,
17 .bus_num = 0,
18 .chip_select = 1,
19 },
20};
21
22static int board_init_spi(void)
23{
24 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
25 return 0;
26}
27arch_initcall(board_init_spi);
diff --git a/arch/avr32/boot/images/Makefile b/arch/avr32/boot/images/Makefile
new file mode 100644
index 000000000000..ccd74eeecec3
--- /dev/null
+++ b/arch/avr32/boot/images/Makefile
@@ -0,0 +1,62 @@
1#
2# Copyright (C) 2004-2006 Atmel Corporation
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
9MKIMAGE := $(srctree)/scripts/mkuboot.sh
10
11extra-y := vmlinux.bin vmlinux.gz
12
13OBJCOPYFLAGS_vmlinux.bin := -O binary
14$(obj)/vmlinux.bin: vmlinux FORCE
15 $(call if_changed,objcopy)
16
17$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
18 $(call if_changed,gzip)
19
20quiet_cmd_uimage = UIMAGE $@
21 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A avr32 -O linux -T kernel \
22 -C gzip -a $(CONFIG_LOAD_ADDRESS) -e $(CONFIG_ENTRY_ADDRESS) \
23 -n 'Linux-$(KERNELRELEASE)' -d $< $@
24
25targets += uImage uImage.srec
26$(obj)/uImage: $(obj)/vmlinux.gz
27 $(call if_changed,uimage)
28 @echo ' Image $@ is ready'
29
30OBJCOPYFLAGS_uImage.srec := -I binary -O srec
31$(obj)/uImage.srec: $(obj)/uImage
32 $(call if_changed,objcopy)
33
34OBJCOPYFLAGS_vmlinux.elf := --change-section-lma .text-0x80000000 \
35 --change-section-lma __ex_table-0x80000000 \
36 --change-section-lma .rodata-0x80000000 \
37 --change-section-lma .data-0x80000000 \
38 --change-section-lma .init-0x80000000 \
39 --change-section-lma .bss-0x80000000 \
40 --change-section-lma .initrd-0x80000000 \
41 --change-section-lma __param-0x80000000 \
42 --change-section-lma __ksymtab-0x80000000 \
43 --change-section-lma __ksymtab_gpl-0x80000000 \
44 --change-section-lma __kcrctab-0x80000000 \
45 --change-section-lma __kcrctab_gpl-0x80000000 \
46 --change-section-lma __ksymtab_strings-0x80000000 \
47 --change-section-lma .got-0x80000000 \
48 --set-start 0xa0000000
49$(obj)/vmlinux.elf: vmlinux FORCE
50 $(call if_changed,objcopy)
51
52quiet_cmd_sfdwarf = SFDWARF $@
53 cmd_sfdwarf = sfdwarf $< TO $@ GNUAVR IW $(SFDWARF_FLAGS) > $(obj)/sfdwarf.log
54
55$(obj)/vmlinux.cso: $(obj)/vmlinux.elf FORCE
56 $(call if_changed,sfdwarf)
57
58install: $(BOOTIMAGE)
59 sh $(srctree)/install-kernel.sh $<
60
61# Generated files to be removed upon make clean
62clean-files := vmlinux* uImage uImage.srec
diff --git a/arch/avr32/boot/u-boot/Makefile b/arch/avr32/boot/u-boot/Makefile
new file mode 100644
index 000000000000..125ddc96c275
--- /dev/null
+++ b/arch/avr32/boot/u-boot/Makefile
@@ -0,0 +1,3 @@
1extra-y := head.o
2
3obj-y := empty.o
diff --git a/arch/avr32/boot/u-boot/empty.S b/arch/avr32/boot/u-boot/empty.S
new file mode 100644
index 000000000000..8ac91a5f12f0
--- /dev/null
+++ b/arch/avr32/boot/u-boot/empty.S
@@ -0,0 +1 @@
/* Empty file */
diff --git a/arch/avr32/boot/u-boot/head.S b/arch/avr32/boot/u-boot/head.S
new file mode 100644
index 000000000000..4488fa27fe94
--- /dev/null
+++ b/arch/avr32/boot/u-boot/head.S
@@ -0,0 +1,60 @@
1/*
2 * Startup code for use with the u-boot bootloader.
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <asm/setup.h>
11
12 /*
13 * The kernel is loaded where we want it to be and all caches
14 * have just been flushed. We get two parameters from u-boot:
15 *
16 * r12 contains a magic number (ATAG_MAGIC)
17 * r11 points to a tag table providing information about
18 * the system.
19 */
20 .section .init.text,"ax"
21 .global _start
22_start:
23 /* Check if the boot loader actually provided a tag table */
24 lddpc r0, magic_number
25 cp.w r12, r0
26 brne no_tag_table
27
28 /* Initialize .bss */
29 lddpc r2, bss_start_addr
30 lddpc r3, end_addr
31 mov r0, 0
32 mov r1, 0
331: st.d r2++, r0
34 cp r2, r3
35 brlo 1b
36
37 /*
38 * Save the tag table address for later use. This must be done
39 * _after_ .bss has been initialized...
40 */
41 lddpc r0, tag_table_addr
42 st.w r0[0], r11
43
44 /* Jump to loader-independent setup code */
45 rjmp kernel_entry
46
47 .align 2
48magic_number:
49 .long ATAG_MAGIC
50tag_table_addr:
51 .long bootloader_tags
52bss_start_addr:
53 .long __bss_start
54end_addr:
55 .long _end
56
57no_tag_table:
58 sub r12, pc, (. - 2f)
59 bral panic
602: .asciz "Boot loader didn't provide correct magic number\n"
diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig
new file mode 100644
index 000000000000..1d22255009fd
--- /dev/null
+++ b/arch/avr32/configs/atstk1002_defconfig
@@ -0,0 +1,754 @@
1#
2# Automatically generated make config: don't edit
3# Linux kernel version: 2.6.18-rc1
4# Tue Jul 11 12:41:36 2006
5#
6CONFIG_AVR32=y
7CONFIG_GENERIC_HARDIRQS=y
8CONFIG_HARDIRQS_SW_RESEND=y
9CONFIG_GENERIC_IRQ_PROBE=y
10CONFIG_RWSEM_GENERIC_SPINLOCK=y
11CONFIG_GENERIC_HWEIGHT=y
12CONFIG_GENERIC_CALIBRATE_DELAY=y
13CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
14
15#
16# Code maturity level options
17#
18CONFIG_EXPERIMENTAL=y
19CONFIG_BROKEN_ON_SMP=y
20CONFIG_INIT_ENV_ARG_LIMIT=32
21
22#
23# General setup
24#
25CONFIG_LOCALVERSION=""
26# CONFIG_LOCALVERSION_AUTO is not set
27CONFIG_SWAP=y
28# CONFIG_SYSVIPC is not set
29# CONFIG_POSIX_MQUEUE is not set
30# CONFIG_BSD_PROCESS_ACCT is not set
31CONFIG_SYSCTL=y
32# CONFIG_AUDIT is not set
33# CONFIG_IKCONFIG is not set
34# CONFIG_RELAY is not set
35CONFIG_INITRAMFS_SOURCE=""
36CONFIG_CC_OPTIMIZE_FOR_SIZE=y
37CONFIG_EMBEDDED=y
38CONFIG_KALLSYMS=y
39# CONFIG_KALLSYMS_ALL is not set
40# CONFIG_KALLSYMS_EXTRA_PASS is not set
41CONFIG_HOTPLUG=y
42CONFIG_PRINTK=y
43CONFIG_BUG=y
44CONFIG_ELF_CORE=y
45# CONFIG_BASE_FULL is not set
46# CONFIG_FUTEX is not set
47# CONFIG_EPOLL is not set
48CONFIG_SHMEM=y
49# CONFIG_SLAB is not set
50# CONFIG_VM_EVENT_COUNTERS is not set
51# CONFIG_TINY_SHMEM is not set
52CONFIG_BASE_SMALL=1
53CONFIG_SLOB=y
54
55#
56# Loadable module support
57#
58CONFIG_MODULES=y
59CONFIG_MODULE_UNLOAD=y
60# CONFIG_MODULE_FORCE_UNLOAD is not set
61# CONFIG_MODVERSIONS is not set
62# CONFIG_MODULE_SRCVERSION_ALL is not set
63# CONFIG_KMOD is not set
64
65#
66# Block layer
67#
68# CONFIG_BLK_DEV_IO_TRACE is not set
69
70#
71# IO Schedulers
72#
73CONFIG_IOSCHED_NOOP=y
74# CONFIG_IOSCHED_AS is not set
75# CONFIG_IOSCHED_DEADLINE is not set
76# CONFIG_IOSCHED_CFQ is not set
77# CONFIG_DEFAULT_AS is not set
78# CONFIG_DEFAULT_DEADLINE is not set
79# CONFIG_DEFAULT_CFQ is not set
80CONFIG_DEFAULT_NOOP=y
81CONFIG_DEFAULT_IOSCHED="noop"
82
83#
84# System Type and features
85#
86CONFIG_SUBARCH_AVR32B=y
87CONFIG_MMU=y
88CONFIG_PERFORMANCE_COUNTERS=y
89CONFIG_PLATFORM_AT32AP=y
90CONFIG_CPU_AT32AP7000=y
91CONFIG_BOARD_ATSTK1002=y
92CONFIG_BOARD_ATSTK1000=y
93CONFIG_LOADER_U_BOOT=y
94CONFIG_LOAD_ADDRESS=0x10000000
95CONFIG_ENTRY_ADDRESS=0x90000000
96CONFIG_PHYS_OFFSET=0x10000000
97CONFIG_PREEMPT_NONE=y
98# CONFIG_PREEMPT_VOLUNTARY is not set
99# CONFIG_PREEMPT is not set
100# CONFIG_HAVE_ARCH_BOOTMEM_NODE is not set
101# CONFIG_ARCH_HAVE_MEMORY_PRESENT is not set
102# CONFIG_NEED_NODE_MEMMAP_SIZE is not set
103CONFIG_ARCH_FLATMEM_ENABLE=y
104# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
105# CONFIG_ARCH_SPARSEMEM_ENABLE is not set
106CONFIG_SELECT_MEMORY_MODEL=y
107CONFIG_FLATMEM_MANUAL=y
108# CONFIG_DISCONTIGMEM_MANUAL is not set
109# CONFIG_SPARSEMEM_MANUAL is not set
110CONFIG_FLATMEM=y
111CONFIG_FLAT_NODE_MEM_MAP=y
112# CONFIG_SPARSEMEM_STATIC is not set
113CONFIG_SPLIT_PTLOCK_CPUS=4
114# CONFIG_RESOURCES_64BIT is not set
115# CONFIG_OWNERSHIP_TRACE is not set
116# CONFIG_HZ_100 is not set
117CONFIG_HZ_250=y
118# CONFIG_HZ_1000 is not set
119CONFIG_HZ=250
120CONFIG_CMDLINE=""
121
122#
123# Bus options
124#
125
126#
127# PCCARD (PCMCIA/CardBus) support
128#
129# CONFIG_PCCARD is not set
130
131#
132# Executable file formats
133#
134CONFIG_BINFMT_ELF=y
135# CONFIG_BINFMT_MISC is not set
136
137#
138# Networking
139#
140CONFIG_NET=y
141
142#
143# Networking options
144#
145# CONFIG_NETDEBUG is not set
146CONFIG_PACKET=y
147CONFIG_PACKET_MMAP=y
148CONFIG_UNIX=y
149# CONFIG_NET_KEY is not set
150CONFIG_INET=y
151# CONFIG_IP_MULTICAST is not set
152# CONFIG_IP_ADVANCED_ROUTER is not set
153CONFIG_IP_FIB_HASH=y
154CONFIG_IP_PNP=y
155CONFIG_IP_PNP_DHCP=y
156# CONFIG_IP_PNP_BOOTP is not set
157# CONFIG_IP_PNP_RARP is not set
158# CONFIG_NET_IPIP is not set
159# CONFIG_NET_IPGRE is not set
160# CONFIG_ARPD is not set
161# CONFIG_SYN_COOKIES is not set
162# CONFIG_INET_AH is not set
163# CONFIG_INET_ESP is not set
164# CONFIG_INET_IPCOMP is not set
165# CONFIG_INET_XFRM_TUNNEL is not set
166# CONFIG_INET_TUNNEL is not set
167# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
168# CONFIG_INET_XFRM_MODE_TUNNEL is not set
169CONFIG_INET_DIAG=y
170CONFIG_INET_TCP_DIAG=y
171# CONFIG_TCP_CONG_ADVANCED is not set
172CONFIG_TCP_CONG_BIC=y
173# CONFIG_IPV6 is not set
174# CONFIG_INET6_XFRM_TUNNEL is not set
175# CONFIG_INET6_TUNNEL is not set
176# CONFIG_NETWORK_SECMARK is not set
177# CONFIG_NETFILTER is not set
178
179#
180# DCCP Configuration (EXPERIMENTAL)
181#
182# CONFIG_IP_DCCP is not set
183
184#
185# SCTP Configuration (EXPERIMENTAL)
186#
187# CONFIG_IP_SCTP is not set
188
189#
190# TIPC Configuration (EXPERIMENTAL)
191#
192# CONFIG_TIPC is not set
193# CONFIG_ATM is not set
194# CONFIG_BRIDGE is not set
195# CONFIG_VLAN_8021Q is not set
196# CONFIG_DECNET is not set
197# CONFIG_LLC2 is not set
198# CONFIG_IPX is not set
199# CONFIG_ATALK is not set
200# CONFIG_X25 is not set
201# CONFIG_LAPB is not set
202# CONFIG_NET_DIVERT is not set
203# CONFIG_ECONET is not set
204# CONFIG_WAN_ROUTER is not set
205
206#
207# QoS and/or fair queueing
208#
209# CONFIG_NET_SCHED is not set
210
211#
212# Network testing
213#
214# CONFIG_NET_PKTGEN is not set
215# CONFIG_NET_TCPPROBE is not set
216# CONFIG_HAMRADIO is not set
217# CONFIG_IRDA is not set
218# CONFIG_BT is not set
219# CONFIG_IEEE80211 is not set
220
221#
222# Device Drivers
223#
224
225#
226# Generic Driver Options
227#
228CONFIG_STANDALONE=y
229# CONFIG_PREVENT_FIRMWARE_BUILD is not set
230# CONFIG_FW_LOADER is not set
231# CONFIG_DEBUG_DRIVER is not set
232# CONFIG_SYS_HYPERVISOR is not set
233
234#
235# Connector - unified userspace <-> kernelspace linker
236#
237# CONFIG_CONNECTOR is not set
238
239#
240# Memory Technology Devices (MTD)
241#
242# CONFIG_MTD is not set
243
244#
245# Parallel port support
246#
247# CONFIG_PARPORT is not set
248
249#
250# Plug and Play support
251#
252
253#
254# Block devices
255#
256# CONFIG_BLK_DEV_COW_COMMON is not set
257CONFIG_BLK_DEV_LOOP=m
258# CONFIG_BLK_DEV_CRYPTOLOOP is not set
259CONFIG_BLK_DEV_NBD=m
260CONFIG_BLK_DEV_RAM=m
261CONFIG_BLK_DEV_RAM_COUNT=16
262CONFIG_BLK_DEV_RAM_SIZE=4096
263CONFIG_BLK_DEV_INITRD=y
264# CONFIG_CDROM_PKTCDVD is not set
265# CONFIG_ATA_OVER_ETH is not set
266
267#
268# ATA/ATAPI/MFM/RLL support
269#
270# CONFIG_IDE is not set
271
272#
273# SCSI device support
274#
275# CONFIG_RAID_ATTRS is not set
276# CONFIG_SCSI is not set
277
278#
279# Multi-device support (RAID and LVM)
280#
281# CONFIG_MD is not set
282
283#
284# Fusion MPT device support
285#
286# CONFIG_FUSION is not set
287
288#
289# IEEE 1394 (FireWire) support
290#
291
292#
293# I2O device support
294#
295
296#
297# Network device support
298#
299CONFIG_NETDEVICES=y
300CONFIG_DUMMY=y
301# CONFIG_BONDING is not set
302# CONFIG_EQUALIZER is not set
303CONFIG_TUN=m
304
305#
306# PHY device support
307#
308# CONFIG_PHYLIB is not set
309
310#
311# Ethernet (10 or 100Mbit)
312#
313CONFIG_NET_ETHERNET=y
314CONFIG_MII=y
315CONFIG_MACB=y
316
317#
318# Ethernet (1000 Mbit)
319#
320
321#
322# Ethernet (10000 Mbit)
323#
324
325#
326# Token Ring devices
327#
328
329#
330# Wireless LAN (non-hamradio)
331#
332# CONFIG_NET_RADIO is not set
333
334#
335# Wan interfaces
336#
337# CONFIG_WAN is not set
338CONFIG_PPP=m
339# CONFIG_PPP_MULTILINK is not set
340# CONFIG_PPP_FILTER is not set
341CONFIG_PPP_ASYNC=m
342# CONFIG_PPP_SYNC_TTY is not set
343CONFIG_PPP_DEFLATE=m
344# CONFIG_PPP_BSDCOMP is not set
345# CONFIG_PPP_MPPE is not set
346# CONFIG_PPPOE is not set
347# CONFIG_SLIP is not set
348# CONFIG_SHAPER is not set
349# CONFIG_NETCONSOLE is not set
350# CONFIG_NETPOLL is not set
351# CONFIG_NET_POLL_CONTROLLER is not set
352
353#
354# ISDN subsystem
355#
356# CONFIG_ISDN is not set
357
358#
359# Telephony Support
360#
361# CONFIG_PHONE is not set
362
363#
364# Input device support
365#
366# CONFIG_INPUT is not set
367
368#
369# Hardware I/O ports
370#
371# CONFIG_SERIO is not set
372# CONFIG_GAMEPORT is not set
373
374#
375# Character devices
376#
377# CONFIG_VT is not set
378# CONFIG_SERIAL_NONSTANDARD is not set
379
380#
381# Serial drivers
382#
383# CONFIG_SERIAL_8250 is not set
384
385#
386# Non-8250 serial port support
387#
388CONFIG_SERIAL_AT91=y
389CONFIG_SERIAL_AT91_CONSOLE=y
390# CONFIG_SERIAL_AT91_TTYAT is not set
391CONFIG_SERIAL_CORE=y
392CONFIG_SERIAL_CORE_CONSOLE=y
393CONFIG_UNIX98_PTYS=y
394# CONFIG_LEGACY_PTYS is not set
395
396#
397# IPMI
398#
399# CONFIG_IPMI_HANDLER is not set
400
401#
402# Watchdog Cards
403#
404# CONFIG_WATCHDOG is not set
405# CONFIG_HW_RANDOM is not set
406# CONFIG_RTC is not set
407# CONFIG_GEN_RTC is not set
408# CONFIG_DTLK is not set
409# CONFIG_R3964 is not set
410
411#
412# Ftape, the floppy tape device driver
413#
414# CONFIG_RAW_DRIVER is not set
415
416#
417# TPM devices
418#
419# CONFIG_TCG_TPM is not set
420# CONFIG_TELCLOCK is not set
421
422#
423# I2C support
424#
425# CONFIG_I2C is not set
426
427#
428# SPI support
429#
430CONFIG_SPI=y
431# CONFIG_SPI_DEBUG is not set
432CONFIG_SPI_MASTER=y
433
434#
435# SPI Master Controller Drivers
436#
437CONFIG_SPI_ATMEL=m
438# CONFIG_SPI_BITBANG is not set
439
440#
441# SPI Protocol Masters
442#
443
444#
445# Dallas's 1-wire bus
446#
447
448#
449# Hardware Monitoring support
450#
451# CONFIG_HWMON is not set
452# CONFIG_HWMON_VID is not set
453
454#
455# Misc devices
456#
457
458#
459# Multimedia devices
460#
461# CONFIG_VIDEO_DEV is not set
462CONFIG_VIDEO_V4L2=y
463
464#
465# Digital Video Broadcasting Devices
466#
467# CONFIG_DVB is not set
468
469#
470# Graphics support
471#
472# CONFIG_FIRMWARE_EDID is not set
473CONFIG_FB=m
474CONFIG_FB_CFB_FILLRECT=m
475CONFIG_FB_CFB_COPYAREA=m
476CONFIG_FB_CFB_IMAGEBLIT=m
477# CONFIG_FB_MACMODES is not set
478# CONFIG_FB_BACKLIGHT is not set
479# CONFIG_FB_MODE_HELPERS is not set
480# CONFIG_FB_TILEBLITTING is not set
481CONFIG_FB_SIDSA=m
482CONFIG_FB_SIDSA_DEFAULT_BPP=24
483# CONFIG_FB_S1D13XXX is not set
484# CONFIG_FB_VIRTUAL is not set
485
486#
487# Logo configuration
488#
489# CONFIG_LOGO is not set
490CONFIG_BACKLIGHT_LCD_SUPPORT=y
491# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
492CONFIG_LCD_CLASS_DEVICE=m
493CONFIG_LCD_DEVICE=y
494CONFIG_LCD_LTV350QV=m
495
496#
497# Sound
498#
499# CONFIG_SOUND is not set
500
501#
502# USB support
503#
504# CONFIG_USB_ARCH_HAS_HCD is not set
505# CONFIG_USB_ARCH_HAS_OHCI is not set
506# CONFIG_USB_ARCH_HAS_EHCI is not set
507
508#
509# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
510#
511
512#
513# USB Gadget Support
514#
515# CONFIG_USB_GADGET is not set
516
517#
518# MMC/SD Card support
519#
520# CONFIG_MMC is not set
521
522#
523# LED devices
524#
525# CONFIG_NEW_LEDS is not set
526
527#
528# LED drivers
529#
530
531#
532# LED Triggers
533#
534
535#
536# InfiniBand support
537#
538
539#
540# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
541#
542
543#
544# Real Time Clock
545#
546# CONFIG_RTC_CLASS is not set
547
548#
549# DMA Engine support
550#
551# CONFIG_DMA_ENGINE is not set
552
553#
554# DMA Clients
555#
556
557#
558# DMA Devices
559#
560
561#
562# File systems
563#
564CONFIG_EXT2_FS=y
565# CONFIG_EXT2_FS_XATTR is not set
566# CONFIG_EXT2_FS_XIP is not set
567# CONFIG_EXT3_FS is not set
568# CONFIG_REISERFS_FS is not set
569# CONFIG_JFS_FS is not set
570# CONFIG_FS_POSIX_ACL is not set
571# CONFIG_XFS_FS is not set
572# CONFIG_OCFS2_FS is not set
573CONFIG_MINIX_FS=m
574CONFIG_ROMFS_FS=m
575# CONFIG_INOTIFY is not set
576# CONFIG_QUOTA is not set
577# CONFIG_DNOTIFY is not set
578# CONFIG_AUTOFS_FS is not set
579# CONFIG_AUTOFS4_FS is not set
580# CONFIG_FUSE_FS is not set
581
582#
583# CD-ROM/DVD Filesystems
584#
585# CONFIG_ISO9660_FS is not set
586# CONFIG_UDF_FS is not set
587
588#
589# DOS/FAT/NT Filesystems
590#
591CONFIG_FAT_FS=m
592CONFIG_MSDOS_FS=m
593CONFIG_VFAT_FS=m
594CONFIG_FAT_DEFAULT_CODEPAGE=437
595CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
596# CONFIG_NTFS_FS is not set
597
598#
599# Pseudo filesystems
600#
601CONFIG_PROC_FS=y
602CONFIG_PROC_KCORE=y
603CONFIG_SYSFS=y
604CONFIG_TMPFS=y
605# CONFIG_HUGETLB_PAGE is not set
606CONFIG_RAMFS=y
607CONFIG_CONFIGFS_FS=m
608
609#
610# Miscellaneous filesystems
611#
612# CONFIG_ADFS_FS is not set
613# CONFIG_AFFS_FS is not set
614# CONFIG_HFS_FS is not set
615# CONFIG_HFSPLUS_FS is not set
616# CONFIG_BEFS_FS is not set
617# CONFIG_BFS_FS is not set
618# CONFIG_EFS_FS is not set
619# CONFIG_CRAMFS is not set
620# CONFIG_VXFS_FS is not set
621# CONFIG_HPFS_FS is not set
622# CONFIG_QNX4FS_FS is not set
623# CONFIG_SYSV_FS is not set
624# CONFIG_UFS_FS is not set
625
626#
627# Network File Systems
628#
629CONFIG_NFS_FS=y
630CONFIG_NFS_V3=y
631# CONFIG_NFS_V3_ACL is not set
632# CONFIG_NFS_V4 is not set
633# CONFIG_NFS_DIRECTIO is not set
634# CONFIG_NFSD is not set
635CONFIG_ROOT_NFS=y
636CONFIG_LOCKD=y
637CONFIG_LOCKD_V4=y
638CONFIG_NFS_COMMON=y
639CONFIG_SUNRPC=y
640# CONFIG_RPCSEC_GSS_KRB5 is not set
641# CONFIG_RPCSEC_GSS_SPKM3 is not set
642# CONFIG_SMB_FS is not set
643CONFIG_CIFS=m
644# CONFIG_CIFS_STATS is not set
645# CONFIG_CIFS_WEAK_PW_HASH is not set
646# CONFIG_CIFS_XATTR is not set
647# CONFIG_CIFS_DEBUG2 is not set
648# CONFIG_CIFS_EXPERIMENTAL is not set
649# CONFIG_NCP_FS is not set
650# CONFIG_CODA_FS is not set
651# CONFIG_AFS_FS is not set
652# CONFIG_9P_FS is not set
653
654#
655# Partition Types
656#
657# CONFIG_PARTITION_ADVANCED is not set
658CONFIG_MSDOS_PARTITION=y
659
660#
661# Native Language Support
662#
663CONFIG_NLS=m
664CONFIG_NLS_DEFAULT="iso8859-1"
665CONFIG_NLS_CODEPAGE_437=m
666# CONFIG_NLS_CODEPAGE_737 is not set
667# CONFIG_NLS_CODEPAGE_775 is not set
668CONFIG_NLS_CODEPAGE_850=m
669# CONFIG_NLS_CODEPAGE_852 is not set
670# CONFIG_NLS_CODEPAGE_855 is not set
671# CONFIG_NLS_CODEPAGE_857 is not set
672# CONFIG_NLS_CODEPAGE_860 is not set
673# CONFIG_NLS_CODEPAGE_861 is not set
674# CONFIG_NLS_CODEPAGE_862 is not set
675# CONFIG_NLS_CODEPAGE_863 is not set
676# CONFIG_NLS_CODEPAGE_864 is not set
677# CONFIG_NLS_CODEPAGE_865 is not set
678# CONFIG_NLS_CODEPAGE_866 is not set
679# CONFIG_NLS_CODEPAGE_869 is not set
680# CONFIG_NLS_CODEPAGE_936 is not set
681# CONFIG_NLS_CODEPAGE_950 is not set
682# CONFIG_NLS_CODEPAGE_932 is not set
683# CONFIG_NLS_CODEPAGE_949 is not set
684# CONFIG_NLS_CODEPAGE_874 is not set
685# CONFIG_NLS_ISO8859_8 is not set
686# CONFIG_NLS_CODEPAGE_1250 is not set
687# CONFIG_NLS_CODEPAGE_1251 is not set
688# CONFIG_NLS_ASCII is not set
689CONFIG_NLS_ISO8859_1=m
690# CONFIG_NLS_ISO8859_2 is not set
691# CONFIG_NLS_ISO8859_3 is not set
692# CONFIG_NLS_ISO8859_4 is not set
693# CONFIG_NLS_ISO8859_5 is not set
694# CONFIG_NLS_ISO8859_6 is not set
695# CONFIG_NLS_ISO8859_7 is not set
696# CONFIG_NLS_ISO8859_9 is not set
697# CONFIG_NLS_ISO8859_13 is not set
698# CONFIG_NLS_ISO8859_14 is not set
699# CONFIG_NLS_ISO8859_15 is not set
700# CONFIG_NLS_KOI8_R is not set
701# CONFIG_NLS_KOI8_U is not set
702CONFIG_NLS_UTF8=m
703
704#
705# Kernel hacking
706#
707CONFIG_TRACE_IRQFLAGS_SUPPORT=y
708CONFIG_PRINTK_TIME=y
709CONFIG_MAGIC_SYSRQ=y
710# CONFIG_UNUSED_SYMBOLS is not set
711CONFIG_DEBUG_KERNEL=y
712CONFIG_LOG_BUF_SHIFT=14
713CONFIG_DETECT_SOFTLOCKUP=y
714# CONFIG_SCHEDSTATS is not set
715# CONFIG_DEBUG_SPINLOCK is not set
716# CONFIG_DEBUG_MUTEXES is not set
717# CONFIG_DEBUG_RWSEMS is not set
718# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
719# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
720# CONFIG_DEBUG_KOBJECT is not set
721CONFIG_DEBUG_BUGVERBOSE=y
722# CONFIG_DEBUG_INFO is not set
723CONFIG_DEBUG_FS=y
724# CONFIG_DEBUG_VM is not set
725CONFIG_FRAME_POINTER=y
726# CONFIG_UNWIND_INFO is not set
727CONFIG_FORCED_INLINING=y
728# CONFIG_RCU_TORTURE_TEST is not set
729CONFIG_KPROBES=y
730
731#
732# Security options
733#
734# CONFIG_KEYS is not set
735# CONFIG_SECURITY is not set
736
737#
738# Cryptographic options
739#
740# CONFIG_CRYPTO is not set
741
742#
743# Hardware crypto devices
744#
745
746#
747# Library routines
748#
749CONFIG_CRC_CCITT=m
750# CONFIG_CRC16 is not set
751CONFIG_CRC32=m
752# CONFIG_LIBCRC32C is not set
753CONFIG_ZLIB_INFLATE=m
754CONFIG_ZLIB_DEFLATE=m
diff --git a/arch/avr32/kernel/Makefile b/arch/avr32/kernel/Makefile
new file mode 100644
index 000000000000..90e5afff54a2
--- /dev/null
+++ b/arch/avr32/kernel/Makefile
@@ -0,0 +1,18 @@
1#
2# Makefile for the Linux/AVR32 kernel.
3#
4
5extra-y := head.o vmlinux.lds
6
7obj-$(CONFIG_SUBARCH_AVR32B) += entry-avr32b.o
8obj-y += syscall_table.o syscall-stubs.o irq.o
9obj-y += setup.o traps.o semaphore.o ptrace.o
10obj-y += signal.o sys_avr32.o process.o time.o
11obj-y += init_task.o switch_to.o cpu.o
12obj-$(CONFIG_MODULES) += module.o avr32_ksyms.o
13obj-$(CONFIG_KPROBES) += kprobes.o
14
15USE_STANDARD_AS_RULE := true
16
17%.lds: %.lds.c FORCE
18 $(call if_changed_dep,cpp_lds_S)
diff --git a/arch/avr32/kernel/asm-offsets.c b/arch/avr32/kernel/asm-offsets.c
new file mode 100644
index 000000000000..97d865865667
--- /dev/null
+++ b/arch/avr32/kernel/asm-offsets.c
@@ -0,0 +1,25 @@
1/*
2 * Generate definitions needed by assembly language modules.
3 * This code generates raw asm output which is post-processed
4 * to extract and format the required data.
5 */
6
7#include <linux/thread_info.h>
8
9#define DEFINE(sym, val) \
10 asm volatile("\n->" #sym " %0 " #val : : "i" (val))
11
12#define BLANK() asm volatile("\n->" : : )
13
14#define OFFSET(sym, str, mem) \
15 DEFINE(sym, offsetof(struct str, mem));
16
17void foo(void)
18{
19 OFFSET(TI_task, thread_info, task);
20 OFFSET(TI_exec_domain, thread_info, exec_domain);
21 OFFSET(TI_flags, thread_info, flags);
22 OFFSET(TI_cpu, thread_info, cpu);
23 OFFSET(TI_preempt_count, thread_info, preempt_count);
24 OFFSET(TI_restart_block, thread_info, restart_block);
25}
diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c
new file mode 100644
index 000000000000..04f767a272b7
--- /dev/null
+++ b/arch/avr32/kernel/avr32_ksyms.c
@@ -0,0 +1,55 @@
1/*
2 * Export AVR32-specific functions for loadable modules.
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/module.h>
11
12#include <asm/checksum.h>
13#include <asm/uaccess.h>
14#include <asm/delay.h>
15
16/*
17 * GCC functions
18 */
19extern unsigned long long __avr32_lsl64(unsigned long long u, unsigned long b);
20extern unsigned long long __avr32_lsr64(unsigned long long u, unsigned long b);
21extern unsigned long long __avr32_asr64(unsigned long long u, unsigned long b);
22EXPORT_SYMBOL(__avr32_lsl64);
23EXPORT_SYMBOL(__avr32_lsr64);
24EXPORT_SYMBOL(__avr32_asr64);
25
26/*
27 * String functions
28 */
29EXPORT_SYMBOL(memset);
30EXPORT_SYMBOL(memcpy);
31
32/*
33 * Userspace access stuff.
34 */
35EXPORT_SYMBOL(copy_from_user);
36EXPORT_SYMBOL(copy_to_user);
37EXPORT_SYMBOL(__copy_user);
38EXPORT_SYMBOL(strncpy_from_user);
39EXPORT_SYMBOL(__strncpy_from_user);
40EXPORT_SYMBOL(clear_user);
41EXPORT_SYMBOL(__clear_user);
42EXPORT_SYMBOL(csum_partial);
43EXPORT_SYMBOL(csum_partial_copy_generic);
44
45/* Delay loops (lib/delay.S) */
46EXPORT_SYMBOL(__ndelay);
47EXPORT_SYMBOL(__udelay);
48EXPORT_SYMBOL(__const_udelay);
49
50/* Bit operations (lib/findbit.S) */
51EXPORT_SYMBOL(find_first_zero_bit);
52EXPORT_SYMBOL(find_next_zero_bit);
53EXPORT_SYMBOL(find_first_bit);
54EXPORT_SYMBOL(find_next_bit);
55EXPORT_SYMBOL(generic_find_next_zero_le_bit);
diff --git a/arch/avr32/kernel/cpu.c b/arch/avr32/kernel/cpu.c
new file mode 100644
index 000000000000..342452ba2049
--- /dev/null
+++ b/arch/avr32/kernel/cpu.c
@@ -0,0 +1,327 @@
1/*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/init.h>
9#include <linux/sysdev.h>
10#include <linux/seq_file.h>
11#include <linux/cpu.h>
12#include <linux/percpu.h>
13#include <linux/param.h>
14#include <linux/errno.h>
15
16#include <asm/setup.h>
17#include <asm/sysreg.h>
18
19static DEFINE_PER_CPU(struct cpu, cpu_devices);
20
21#ifdef CONFIG_PERFORMANCE_COUNTERS
22
23/*
24 * XXX: If/when a SMP-capable implementation of AVR32 will ever be
25 * made, we must make sure that the code executes on the correct CPU.
26 */
27static ssize_t show_pc0event(struct sys_device *dev, char *buf)
28{
29 unsigned long pccr;
30
31 pccr = sysreg_read(PCCR);
32 return sprintf(buf, "0x%lx\n", (pccr >> 12) & 0x3f);
33}
34static ssize_t store_pc0event(struct sys_device *dev, const char *buf,
35 size_t count)
36{
37 unsigned long val;
38 char *endp;
39
40 val = simple_strtoul(buf, &endp, 0);
41 if (endp == buf || val > 0x3f)
42 return -EINVAL;
43 val = (val << 12) | (sysreg_read(PCCR) & 0xfffc0fff);
44 sysreg_write(PCCR, val);
45 return count;
46}
47static ssize_t show_pc0count(struct sys_device *dev, char *buf)
48{
49 unsigned long pcnt0;
50
51 pcnt0 = sysreg_read(PCNT0);
52 return sprintf(buf, "%lu\n", pcnt0);
53}
54static ssize_t store_pc0count(struct sys_device *dev, const char *buf,
55 size_t count)
56{
57 unsigned long val;
58 char *endp;
59
60 val = simple_strtoul(buf, &endp, 0);
61 if (endp == buf)
62 return -EINVAL;
63 sysreg_write(PCNT0, val);
64
65 return count;
66}
67
68static ssize_t show_pc1event(struct sys_device *dev, char *buf)
69{
70 unsigned long pccr;
71
72 pccr = sysreg_read(PCCR);
73 return sprintf(buf, "0x%lx\n", (pccr >> 18) & 0x3f);
74}
75static ssize_t store_pc1event(struct sys_device *dev, const char *buf,
76 size_t count)
77{
78 unsigned long val;
79 char *endp;
80
81 val = simple_strtoul(buf, &endp, 0);
82 if (endp == buf || val > 0x3f)
83 return -EINVAL;
84 val = (val << 18) | (sysreg_read(PCCR) & 0xff03ffff);
85 sysreg_write(PCCR, val);
86 return count;
87}
88static ssize_t show_pc1count(struct sys_device *dev, char *buf)
89{
90 unsigned long pcnt1;
91
92 pcnt1 = sysreg_read(PCNT1);
93 return sprintf(buf, "%lu\n", pcnt1);
94}
95static ssize_t store_pc1count(struct sys_device *dev, const char *buf,
96 size_t count)
97{
98 unsigned long val;
99 char *endp;
100
101 val = simple_strtoul(buf, &endp, 0);
102 if (endp == buf)
103 return -EINVAL;
104 sysreg_write(PCNT1, val);
105
106 return count;
107}
108
109static ssize_t show_pccycles(struct sys_device *dev, char *buf)
110{
111 unsigned long pccnt;
112
113 pccnt = sysreg_read(PCCNT);
114 return sprintf(buf, "%lu\n", pccnt);
115}
116static ssize_t store_pccycles(struct sys_device *dev, const char *buf,
117 size_t count)
118{
119 unsigned long val;
120 char *endp;
121
122 val = simple_strtoul(buf, &endp, 0);
123 if (endp == buf)
124 return -EINVAL;
125 sysreg_write(PCCNT, val);
126
127 return count;
128}
129
130static ssize_t show_pcenable(struct sys_device *dev, char *buf)
131{
132 unsigned long pccr;
133
134 pccr = sysreg_read(PCCR);
135 return sprintf(buf, "%c\n", (pccr & 1)?'1':'0');
136}
137static ssize_t store_pcenable(struct sys_device *dev, const char *buf,
138 size_t count)
139{
140 unsigned long pccr, val;
141 char *endp;
142
143 val = simple_strtoul(buf, &endp, 0);
144 if (endp == buf)
145 return -EINVAL;
146 if (val)
147 val = 1;
148
149 pccr = sysreg_read(PCCR);
150 pccr = (pccr & ~1UL) | val;
151 sysreg_write(PCCR, pccr);
152
153 return count;
154}
155
156static SYSDEV_ATTR(pc0event, 0600, show_pc0event, store_pc0event);
157static SYSDEV_ATTR(pc0count, 0600, show_pc0count, store_pc0count);
158static SYSDEV_ATTR(pc1event, 0600, show_pc1event, store_pc1event);
159static SYSDEV_ATTR(pc1count, 0600, show_pc1count, store_pc1count);
160static SYSDEV_ATTR(pccycles, 0600, show_pccycles, store_pccycles);
161static SYSDEV_ATTR(pcenable, 0600, show_pcenable, store_pcenable);
162
163#endif /* CONFIG_PERFORMANCE_COUNTERS */
164
165static int __init topology_init(void)
166{
167 int cpu;
168
169 for_each_possible_cpu(cpu) {
170 struct cpu *c = &per_cpu(cpu_devices, cpu);
171
172 register_cpu(c, cpu);
173
174#ifdef CONFIG_PERFORMANCE_COUNTERS
175 sysdev_create_file(&c->sysdev, &attr_pc0event);
176 sysdev_create_file(&c->sysdev, &attr_pc0count);
177 sysdev_create_file(&c->sysdev, &attr_pc1event);
178 sysdev_create_file(&c->sysdev, &attr_pc1count);
179 sysdev_create_file(&c->sysdev, &attr_pccycles);
180 sysdev_create_file(&c->sysdev, &attr_pcenable);
181#endif
182 }
183
184 return 0;
185}
186
187subsys_initcall(topology_init);
188
189static const char *cpu_names[] = {
190 "Morgan",
191 "AP7000",
192};
193#define NR_CPU_NAMES ARRAY_SIZE(cpu_names)
194
195static const char *arch_names[] = {
196 "AVR32A",
197 "AVR32B",
198};
199#define NR_ARCH_NAMES ARRAY_SIZE(arch_names)
200
201static const char *mmu_types[] = {
202 "No MMU",
203 "ITLB and DTLB",
204 "Shared TLB",
205 "MPU"
206};
207
208void __init setup_processor(void)
209{
210 unsigned long config0, config1;
211 unsigned cpu_id, cpu_rev, arch_id, arch_rev, mmu_type;
212 unsigned tmp;
213
214 config0 = sysreg_read(CONFIG0); /* 0x0000013e; */
215 config1 = sysreg_read(CONFIG1); /* 0x01f689a2; */
216 cpu_id = config0 >> 24;
217 cpu_rev = (config0 >> 16) & 0xff;
218 arch_id = (config0 >> 13) & 0x07;
219 arch_rev = (config0 >> 10) & 0x07;
220 mmu_type = (config0 >> 7) & 0x03;
221
222 boot_cpu_data.arch_type = arch_id;
223 boot_cpu_data.cpu_type = cpu_id;
224 boot_cpu_data.arch_revision = arch_rev;
225 boot_cpu_data.cpu_revision = cpu_rev;
226 boot_cpu_data.tlb_config = mmu_type;
227
228 tmp = (config1 >> 13) & 0x07;
229 if (tmp) {
230 boot_cpu_data.icache.ways = 1 << ((config1 >> 10) & 0x07);
231 boot_cpu_data.icache.sets = 1 << ((config1 >> 16) & 0x0f);
232 boot_cpu_data.icache.linesz = 1 << (tmp + 1);
233 }
234 tmp = (config1 >> 3) & 0x07;
235 if (tmp) {
236 boot_cpu_data.dcache.ways = 1 << (config1 & 0x07);
237 boot_cpu_data.dcache.sets = 1 << ((config1 >> 6) & 0x0f);
238 boot_cpu_data.dcache.linesz = 1 << (tmp + 1);
239 }
240
241 if ((cpu_id >= NR_CPU_NAMES) || (arch_id >= NR_ARCH_NAMES)) {
242 printk ("Unknown CPU configuration (ID %02x, arch %02x), "
243 "continuing anyway...\n",
244 cpu_id, arch_id);
245 return;
246 }
247
248 printk ("CPU: %s [%02x] revision %d (%s revision %d)\n",
249 cpu_names[cpu_id], cpu_id, cpu_rev,
250 arch_names[arch_id], arch_rev);
251 printk ("CPU: MMU configuration: %s\n", mmu_types[mmu_type]);
252 printk ("CPU: features:");
253 if (config0 & (1 << 6))
254 printk(" fpu");
255 if (config0 & (1 << 5))
256 printk(" java");
257 if (config0 & (1 << 4))
258 printk(" perfctr");
259 if (config0 & (1 << 3))
260 printk(" ocd");
261 printk("\n");
262}
263
264#ifdef CONFIG_PROC_FS
265static int c_show(struct seq_file *m, void *v)
266{
267 unsigned int icache_size, dcache_size;
268 unsigned int cpu = smp_processor_id();
269
270 icache_size = boot_cpu_data.icache.ways *
271 boot_cpu_data.icache.sets *
272 boot_cpu_data.icache.linesz;
273 dcache_size = boot_cpu_data.dcache.ways *
274 boot_cpu_data.dcache.sets *
275 boot_cpu_data.dcache.linesz;
276
277 seq_printf(m, "processor\t: %d\n", cpu);
278
279 if (boot_cpu_data.arch_type < NR_ARCH_NAMES)
280 seq_printf(m, "cpu family\t: %s revision %d\n",
281 arch_names[boot_cpu_data.arch_type],
282 boot_cpu_data.arch_revision);
283 if (boot_cpu_data.cpu_type < NR_CPU_NAMES)
284 seq_printf(m, "cpu type\t: %s revision %d\n",
285 cpu_names[boot_cpu_data.cpu_type],
286 boot_cpu_data.cpu_revision);
287
288 seq_printf(m, "i-cache\t\t: %dK (%u ways x %u sets x %u)\n",
289 icache_size >> 10,
290 boot_cpu_data.icache.ways,
291 boot_cpu_data.icache.sets,
292 boot_cpu_data.icache.linesz);
293 seq_printf(m, "d-cache\t\t: %dK (%u ways x %u sets x %u)\n",
294 dcache_size >> 10,
295 boot_cpu_data.dcache.ways,
296 boot_cpu_data.dcache.sets,
297 boot_cpu_data.dcache.linesz);
298 seq_printf(m, "bogomips\t: %lu.%02lu\n",
299 boot_cpu_data.loops_per_jiffy / (500000/HZ),
300 (boot_cpu_data.loops_per_jiffy / (5000/HZ)) % 100);
301
302 return 0;
303}
304
305static void *c_start(struct seq_file *m, loff_t *pos)
306{
307 return *pos < 1 ? (void *)1 : NULL;
308}
309
310static void *c_next(struct seq_file *m, void *v, loff_t *pos)
311{
312 ++*pos;
313 return NULL;
314}
315
316static void c_stop(struct seq_file *m, void *v)
317{
318
319}
320
321struct seq_operations cpuinfo_op = {
322 .start = c_start,
323 .next = c_next,
324 .stop = c_stop,
325 .show = c_show
326};
327#endif /* CONFIG_PROC_FS */
diff --git a/arch/avr32/kernel/entry-avr32b.S b/arch/avr32/kernel/entry-avr32b.S
new file mode 100644
index 000000000000..eeb66792bc37
--- /dev/null
+++ b/arch/avr32/kernel/entry-avr32b.S
@@ -0,0 +1,678 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9/*
10 * This file contains the low-level entry-points into the kernel, that is,
11 * exception handlers, debug trap handlers, interrupt handlers and the
12 * system call handler.
13 */
14#include <linux/errno.h>
15
16#include <asm/asm.h>
17#include <asm/hardirq.h>
18#include <asm/irq.h>
19#include <asm/ocd.h>
20#include <asm/page.h>
21#include <asm/pgtable.h>
22#include <asm/ptrace.h>
23#include <asm/sysreg.h>
24#include <asm/thread_info.h>
25#include <asm/unistd.h>
26
27#ifdef CONFIG_PREEMPT
28# define preempt_stop mask_interrupts
29#else
30# define preempt_stop
31# define fault_resume_kernel fault_restore_all
32#endif
33
34#define __MASK(x) ((1 << (x)) - 1)
35#define IRQ_MASK ((__MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT) | \
36 (__MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT))
37
38 .section .ex.text,"ax",@progbits
39 .align 2
40exception_vectors:
41 bral handle_critical
42 .align 2
43 bral handle_critical
44 .align 2
45 bral do_bus_error_write
46 .align 2
47 bral do_bus_error_read
48 .align 2
49 bral do_nmi_ll
50 .align 2
51 bral handle_address_fault
52 .align 2
53 bral handle_protection_fault
54 .align 2
55 bral handle_debug
56 .align 2
57 bral do_illegal_opcode_ll
58 .align 2
59 bral do_illegal_opcode_ll
60 .align 2
61 bral do_illegal_opcode_ll
62 .align 2
63 bral do_fpe_ll
64 .align 2
65 bral do_illegal_opcode_ll
66 .align 2
67 bral handle_address_fault
68 .align 2
69 bral handle_address_fault
70 .align 2
71 bral handle_protection_fault
72 .align 2
73 bral handle_protection_fault
74 .align 2
75 bral do_dtlb_modified
76
77 /*
78 * r0 : PGD/PT/PTE
79 * r1 : Offending address
80 * r2 : Scratch register
81 * r3 : Cause (5, 12 or 13)
82 */
83#define tlbmiss_save pushm r0-r3
84#define tlbmiss_restore popm r0-r3
85
86 .section .tlbx.ex.text,"ax",@progbits
87 .global itlb_miss
88itlb_miss:
89 tlbmiss_save
90 rjmp tlb_miss_common
91
92 .section .tlbr.ex.text,"ax",@progbits
93dtlb_miss_read:
94 tlbmiss_save
95 rjmp tlb_miss_common
96
97 .section .tlbw.ex.text,"ax",@progbits
98dtlb_miss_write:
99 tlbmiss_save
100
101 .global tlb_miss_common
102tlb_miss_common:
103 mfsr r0, SYSREG_PTBR
104 mfsr r1, SYSREG_TLBEAR
105
106 /* Is it the vmalloc space? */
107 bld r1, 31
108 brcs handle_vmalloc_miss
109
110 /* First level lookup */
111pgtbl_lookup:
112 lsr r2, r1, PGDIR_SHIFT
113 ld.w r0, r0[r2 << 2]
114 bld r0, _PAGE_BIT_PRESENT
115 brcc page_table_not_present
116
117 /* TODO: Check access rights on page table if necessary */
118
119 /* Translate to virtual address in P1. */
120 andl r0, 0xf000
121 sbr r0, 31
122
123 /* Second level lookup */
124 lsl r1, (32 - PGDIR_SHIFT)
125 lsr r1, (32 - PGDIR_SHIFT) + PAGE_SHIFT
126 add r2, r0, r1 << 2
127 ld.w r1, r2[0]
128 bld r1, _PAGE_BIT_PRESENT
129 brcc page_not_present
130
131 /* Mark the page as accessed */
132 sbr r1, _PAGE_BIT_ACCESSED
133 st.w r2[0], r1
134
135 /* Drop software flags */
136 andl r1, _PAGE_FLAGS_HARDWARE_MASK & 0xffff
137 mtsr SYSREG_TLBELO, r1
138
139 /* Figure out which entry we want to replace */
140 mfsr r0, SYSREG_TLBARLO
141 clz r2, r0
142 brcc 1f
143 mov r1, -1 /* All entries have been accessed, */
144 mtsr SYSREG_TLBARLO, r1 /* so reset TLBAR */
145 mov r2, 0 /* and start at 0 */
1461: mfsr r1, SYSREG_MMUCR
147 lsl r2, 14
148 andl r1, 0x3fff, COH
149 or r1, r2
150 mtsr SYSREG_MMUCR, r1
151
152 tlbw
153
154 tlbmiss_restore
155 rete
156
157handle_vmalloc_miss:
158 /* Simply do the lookup in init's page table */
159 mov r0, lo(swapper_pg_dir)
160 orh r0, hi(swapper_pg_dir)
161 rjmp pgtbl_lookup
162
163
164 /* --- System Call --- */
165
166 .section .scall.text,"ax",@progbits
167system_call:
168 pushm r12 /* r12_orig */
169 stmts --sp, r0-lr
170 zero_fp
171 mfsr r0, SYSREG_RAR_SUP
172 mfsr r1, SYSREG_RSR_SUP
173 stm --sp, r0-r1
174
175 /* check for syscall tracing */
176 get_thread_info r0
177 ld.w r1, r0[TI_flags]
178 bld r1, TIF_SYSCALL_TRACE
179 brcs syscall_trace_enter
180
181syscall_trace_cont:
182 cp.w r8, NR_syscalls
183 brhs syscall_badsys
184
185 lddpc lr, syscall_table_addr
186 ld.w lr, lr[r8 << 2]
187 mov r8, r5 /* 5th argument (6th is pushed by stub) */
188 icall lr
189
190 .global syscall_return
191syscall_return:
192 get_thread_info r0
193 mask_interrupts /* make sure we don't miss an interrupt
194 setting need_resched or sigpending
195 between sampling and the rets */
196
197 /* Store the return value so that the correct value is loaded below */
198 stdsp sp[REG_R12], r12
199
200 ld.w r1, r0[TI_flags]
201 andl r1, _TIF_ALLWORK_MASK, COH
202 brne syscall_exit_work
203
204syscall_exit_cont:
205 popm r8-r9
206 mtsr SYSREG_RAR_SUP, r8
207 mtsr SYSREG_RSR_SUP, r9
208 ldmts sp++, r0-lr
209 sub sp, -4 /* r12_orig */
210 rets
211
212 .align 2
213syscall_table_addr:
214 .long sys_call_table
215
216syscall_badsys:
217 mov r12, -ENOSYS
218 rjmp syscall_return
219
220 .global ret_from_fork
221ret_from_fork:
222 rcall schedule_tail
223
224 /* check for syscall tracing */
225 get_thread_info r0
226 ld.w r1, r0[TI_flags]
227 andl r1, _TIF_ALLWORK_MASK, COH
228 brne syscall_exit_work
229 rjmp syscall_exit_cont
230
231syscall_trace_enter:
232 pushm r8-r12
233 rcall syscall_trace
234 popm r8-r12
235 rjmp syscall_trace_cont
236
237syscall_exit_work:
238 bld r1, TIF_SYSCALL_TRACE
239 brcc 1f
240 unmask_interrupts
241 rcall syscall_trace
242 mask_interrupts
243 ld.w r1, r0[TI_flags]
244
2451: bld r1, TIF_NEED_RESCHED
246 brcc 2f
247 unmask_interrupts
248 rcall schedule
249 mask_interrupts
250 ld.w r1, r0[TI_flags]
251 rjmp 1b
252
2532: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK
254 tst r1, r2
255 breq 3f
256 unmask_interrupts
257 mov r12, sp
258 mov r11, r0
259 rcall do_notify_resume
260 mask_interrupts
261 ld.w r1, r0[TI_flags]
262 rjmp 1b
263
2643: bld r1, TIF_BREAKPOINT
265 brcc syscall_exit_cont
266 mfsr r3, SYSREG_TLBEHI
267 lddsp r2, sp[REG_PC]
268 andl r3, 0xff, COH
269 lsl r3, 1
270 sbr r3, 30
271 sbr r3, 0
272 mtdr DBGREG_BWA2A, r2
273 mtdr DBGREG_BWC2A, r3
274 rjmp syscall_exit_cont
275
276
277 /* The slow path of the TLB miss handler */
278page_table_not_present:
279page_not_present:
280 tlbmiss_restore
281 sub sp, 4
282 stmts --sp, r0-lr
283 rcall save_full_context_ex
284 mfsr r12, SYSREG_ECR
285 mov r11, sp
286 rcall do_page_fault
287 rjmp ret_from_exception
288
289 /* This function expects to find offending PC in SYSREG_RAR_EX */
290save_full_context_ex:
291 mfsr r8, SYSREG_RSR_EX
292 mov r12, r8
293 andh r8, (MODE_MASK >> 16), COH
294 mfsr r11, SYSREG_RAR_EX
295 brne 2f
296
2971: pushm r11, r12 /* PC and SR */
298 unmask_exceptions
299 ret r12
300
3012: sub r10, sp, -(FRAME_SIZE_FULL - REG_LR)
302 stdsp sp[4], r10 /* replace saved SP */
303 rjmp 1b
304
305 /* Low-level exception handlers */
306handle_critical:
307 pushm r12
308 pushm r0-r12
309 rcall save_full_context_ex
310 mfsr r12, SYSREG_ECR
311 mov r11, sp
312 rcall do_critical_exception
313
314 /* We should never get here... */
315bad_return:
316 sub r12, pc, (. - 1f)
317 bral panic
318 .align 2
3191: .asciz "Return from critical exception!"
320
321 .align 1
322do_bus_error_write:
323 sub sp, 4
324 stmts --sp, r0-lr
325 rcall save_full_context_ex
326 mov r11, 1
327 rjmp 1f
328
329do_bus_error_read:
330 sub sp, 4
331 stmts --sp, r0-lr
332 rcall save_full_context_ex
333 mov r11, 0
3341: mfsr r12, SYSREG_BEAR
335 mov r10, sp
336 rcall do_bus_error
337 rjmp ret_from_exception
338
339 .align 1
340do_nmi_ll:
341 sub sp, 4
342 stmts --sp, r0-lr
343 /* FIXME: Make sure RAR_NMI and RSR_NMI are pushed instead of *_EX */
344 rcall save_full_context_ex
345 mfsr r12, SYSREG_ECR
346 mov r11, sp
347 rcall do_nmi
348 rjmp bad_return
349
350handle_address_fault:
351 sub sp, 4
352 stmts --sp, r0-lr
353 rcall save_full_context_ex
354 mfsr r12, SYSREG_ECR
355 mov r11, sp
356 rcall do_address_exception
357 rjmp ret_from_exception
358
359handle_protection_fault:
360 sub sp, 4
361 stmts --sp, r0-lr
362 rcall save_full_context_ex
363 mfsr r12, SYSREG_ECR
364 mov r11, sp
365 rcall do_page_fault
366 rjmp ret_from_exception
367
368 .align 1
369do_illegal_opcode_ll:
370 sub sp, 4
371 stmts --sp, r0-lr
372 rcall save_full_context_ex
373 mfsr r12, SYSREG_ECR
374 mov r11, sp
375 rcall do_illegal_opcode
376 rjmp ret_from_exception
377
378do_dtlb_modified:
379 pushm r0-r3
380 mfsr r1, SYSREG_TLBEAR
381 mfsr r0, SYSREG_PTBR
382 lsr r2, r1, PGDIR_SHIFT
383 ld.w r0, r0[r2 << 2]
384 lsl r1, (32 - PGDIR_SHIFT)
385 lsr r1, (32 - PGDIR_SHIFT) + PAGE_SHIFT
386
387 /* Translate to virtual address in P1 */
388 andl r0, 0xf000
389 sbr r0, 31
390 add r2, r0, r1 << 2
391 ld.w r3, r2[0]
392 sbr r3, _PAGE_BIT_DIRTY
393 mov r0, r3
394 st.w r2[0], r3
395
396 /* The page table is up-to-date. Update the TLB entry as well */
397 andl r0, lo(_PAGE_FLAGS_HARDWARE_MASK)
398 mtsr SYSREG_TLBELO, r0
399
400 /* MMUCR[DRP] is updated automatically, so let's go... */
401 tlbw
402
403 popm r0-r3
404 rete
405
406do_fpe_ll:
407 sub sp, 4
408 stmts --sp, r0-lr
409 rcall save_full_context_ex
410 unmask_interrupts
411 mov r12, 26
412 mov r11, sp
413 rcall do_fpe
414 rjmp ret_from_exception
415
416ret_from_exception:
417 mask_interrupts
418 lddsp r4, sp[REG_SR]
419 andh r4, (MODE_MASK >> 16), COH
420 brne fault_resume_kernel
421
422 get_thread_info r0
423 ld.w r1, r0[TI_flags]
424 andl r1, _TIF_WORK_MASK, COH
425 brne fault_exit_work
426
427fault_resume_user:
428 popm r8-r9
429 mask_exceptions
430 mtsr SYSREG_RAR_EX, r8
431 mtsr SYSREG_RSR_EX, r9
432 ldmts sp++, r0-lr
433 sub sp, -4
434 rete
435
436fault_resume_kernel:
437#ifdef CONFIG_PREEMPT
438 get_thread_info r0
439 ld.w r2, r0[TI_preempt_count]
440 cp.w r2, 0
441 brne 1f
442 ld.w r1, r0[TI_flags]
443 bld r1, TIF_NEED_RESCHED
444 brcc 1f
445 lddsp r4, sp[REG_SR]
446 bld r4, SYSREG_GM_OFFSET
447 brcs 1f
448 rcall preempt_schedule_irq
4491:
450#endif
451
452 popm r8-r9
453 mask_exceptions
454 mfsr r1, SYSREG_SR
455 mtsr SYSREG_RAR_EX, r8
456 mtsr SYSREG_RSR_EX, r9
457 popm lr
458 sub sp, -4 /* ignore SP */
459 popm r0-r12
460 sub sp, -4 /* ignore r12_orig */
461 rete
462
463irq_exit_work:
464 /* Switch to exception mode so that we can share the same code. */
465 mfsr r8, SYSREG_SR
466 cbr r8, SYSREG_M0_OFFSET
467 orh r8, hi(SYSREG_BIT(M1) | SYSREG_BIT(M2))
468 mtsr SYSREG_SR, r8
469 sub pc, -2
470 get_thread_info r0
471 ld.w r1, r0[TI_flags]
472
473fault_exit_work:
474 bld r1, TIF_NEED_RESCHED
475 brcc 1f
476 unmask_interrupts
477 rcall schedule
478 mask_interrupts
479 ld.w r1, r0[TI_flags]
480 rjmp fault_exit_work
481
4821: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK
483 tst r1, r2
484 breq 2f
485 unmask_interrupts
486 mov r12, sp
487 mov r11, r0
488 rcall do_notify_resume
489 mask_interrupts
490 ld.w r1, r0[TI_flags]
491 rjmp fault_exit_work
492
4932: bld r1, TIF_BREAKPOINT
494 brcc fault_resume_user
495 mfsr r3, SYSREG_TLBEHI
496 lddsp r2, sp[REG_PC]
497 andl r3, 0xff, COH
498 lsl r3, 1
499 sbr r3, 30
500 sbr r3, 0
501 mtdr DBGREG_BWA2A, r2
502 mtdr DBGREG_BWC2A, r3
503 rjmp fault_resume_user
504
505 /* If we get a debug trap from privileged context we end up here */
506handle_debug_priv:
507 /* Fix up LR and SP in regs. r11 contains the mode we came from */
508 mfsr r8, SYSREG_SR
509 mov r9, r8
510 andh r8, hi(~MODE_MASK)
511 or r8, r11
512 mtsr SYSREG_SR, r8
513 sub pc, -2
514 stdsp sp[REG_LR], lr
515 mtsr SYSREG_SR, r9
516 sub pc, -2
517 sub r10, sp, -FRAME_SIZE_FULL
518 stdsp sp[REG_SP], r10
519 mov r12, sp
520 rcall do_debug_priv
521
522 /* Now, put everything back */
523 ssrf SR_EM_BIT
524 popm r10, r11
525 mtsr SYSREG_RAR_DBG, r10
526 mtsr SYSREG_RSR_DBG, r11
527 mfsr r8, SYSREG_SR
528 mov r9, r8
529 andh r8, hi(~MODE_MASK)
530 andh r11, hi(MODE_MASK)
531 or r8, r11
532 mtsr SYSREG_SR, r8
533 sub pc, -2
534 popm lr
535 mtsr SYSREG_SR, r9
536 sub pc, -2
537 sub sp, -4 /* skip SP */
538 popm r0-r12
539 sub sp, -4
540 retd
541
542 /*
543 * At this point, everything is masked, that is, interrupts,
544 * exceptions and debugging traps. We might get called from
545 * interrupt or exception context in some rare cases, but this
546 * will be taken care of by do_debug(), so we're not going to
547 * do a 100% correct context save here.
548 */
549handle_debug:
550 sub sp, 4 /* r12_orig */
551 stmts --sp, r0-lr
552 mfsr r10, SYSREG_RAR_DBG
553 mfsr r11, SYSREG_RSR_DBG
554 unmask_exceptions
555 pushm r10,r11
556 andh r11, (MODE_MASK >> 16), COH
557 brne handle_debug_priv
558
559 mov r12, sp
560 rcall do_debug
561
562 lddsp r10, sp[REG_SR]
563 andh r10, (MODE_MASK >> 16), COH
564 breq debug_resume_user
565
566debug_restore_all:
567 popm r10,r11
568 mask_exceptions
569 mtsr SYSREG_RSR_DBG, r11
570 mtsr SYSREG_RAR_DBG, r10
571 ldmts sp++, r0-lr
572 sub sp, -4
573 retd
574
575debug_resume_user:
576 get_thread_info r0
577 mask_interrupts
578
579 ld.w r1, r0[TI_flags]
580 andl r1, _TIF_DBGWORK_MASK, COH
581 breq debug_restore_all
582
5831: bld r1, TIF_NEED_RESCHED
584 brcc 2f
585 unmask_interrupts
586 rcall schedule
587 mask_interrupts
588 ld.w r1, r0[TI_flags]
589 rjmp 1b
590
5912: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK
592 tst r1, r2
593 breq 3f
594 unmask_interrupts
595 mov r12, sp
596 mov r11, r0
597 rcall do_notify_resume
598 mask_interrupts
599 ld.w r1, r0[TI_flags]
600 rjmp 1b
601
6023: bld r1, TIF_SINGLE_STEP
603 brcc debug_restore_all
604 mfdr r2, DBGREG_DC
605 sbr r2, DC_SS_BIT
606 mtdr DBGREG_DC, r2
607 rjmp debug_restore_all
608
609 .set rsr_int0, SYSREG_RSR_INT0
610 .set rsr_int1, SYSREG_RSR_INT1
611 .set rsr_int2, SYSREG_RSR_INT2
612 .set rsr_int3, SYSREG_RSR_INT3
613 .set rar_int0, SYSREG_RAR_INT0
614 .set rar_int1, SYSREG_RAR_INT1
615 .set rar_int2, SYSREG_RAR_INT2
616 .set rar_int3, SYSREG_RAR_INT3
617
618 .macro IRQ_LEVEL level
619 .type irq_level\level, @function
620irq_level\level:
621 sub sp, 4 /* r12_orig */
622 stmts --sp,r0-lr
623 mfsr r8, rar_int\level
624 mfsr r9, rsr_int\level
625 pushm r8-r9
626
627 mov r11, sp
628 mov r12, \level
629
630 rcall do_IRQ
631
632 lddsp r4, sp[REG_SR]
633 andh r4, (MODE_MASK >> 16), COH
634#ifdef CONFIG_PREEMPT
635 brne 2f
636#else
637 brne 1f
638#endif
639
640 get_thread_info r0
641 ld.w r1, r0[TI_flags]
642 andl r1, _TIF_WORK_MASK, COH
643 brne irq_exit_work
644
6451: popm r8-r9
646 mtsr rar_int\level, r8
647 mtsr rsr_int\level, r9
648 ldmts sp++,r0-lr
649 sub sp, -4 /* ignore r12_orig */
650 rete
651
652#ifdef CONFIG_PREEMPT
6532:
654 get_thread_info r0
655 ld.w r2, r0[TI_preempt_count]
656 cp.w r2, 0
657 brne 1b
658 ld.w r1, r0[TI_flags]
659 bld r1, TIF_NEED_RESCHED
660 brcc 1b
661 lddsp r4, sp[REG_SR]
662 bld r4, SYSREG_GM_OFFSET
663 brcs 1b
664 rcall preempt_schedule_irq
665 rjmp 1b
666#endif
667 .endm
668
669 .section .irq.text,"ax",@progbits
670
671 .global irq_level0
672 .global irq_level1
673 .global irq_level2
674 .global irq_level3
675 IRQ_LEVEL 0
676 IRQ_LEVEL 1
677 IRQ_LEVEL 2
678 IRQ_LEVEL 3
diff --git a/arch/avr32/kernel/head.S b/arch/avr32/kernel/head.S
new file mode 100644
index 000000000000..773b7ad87be9
--- /dev/null
+++ b/arch/avr32/kernel/head.S
@@ -0,0 +1,45 @@
1/*
2 * Non-board-specific low-level startup code
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/linkage.h>
11
12#include <asm/page.h>
13#include <asm/thread_info.h>
14#include <asm/sysreg.h>
15
16 .section .init.text,"ax"
17 .global kernel_entry
18kernel_entry:
19 /* Initialize status register */
20 lddpc r0, init_sr
21 mtsr SYSREG_SR, r0
22
23 /* Set initial stack pointer */
24 lddpc sp, stack_addr
25 sub sp, -THREAD_SIZE
26
27#ifdef CONFIG_FRAME_POINTER
28 /* Mark last stack frame */
29 mov lr, 0
30 mov r7, 0
31#endif
32
33 /* Set up the PIO, SDRAM controller, early printk, etc. */
34 rcall board_early_init
35
36 /* Start the show */
37 lddpc pc, kernel_start_addr
38
39 .align 2
40init_sr:
41 .long 0x007f0000 /* Supervisor mode, everything masked */
42stack_addr:
43 .long init_thread_union
44kernel_start_addr:
45 .long start_kernel
diff --git a/arch/avr32/kernel/init_task.c b/arch/avr32/kernel/init_task.c
new file mode 100644
index 000000000000..effcacf9d1a2
--- /dev/null
+++ b/arch/avr32/kernel/init_task.c
@@ -0,0 +1,38 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/module.h>
9#include <linux/fs.h>
10#include <linux/sched.h>
11#include <linux/init_task.h>
12#include <linux/mqueue.h>
13
14#include <asm/pgtable.h>
15
16static struct fs_struct init_fs = INIT_FS;
17static struct files_struct init_files = INIT_FILES;
18static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
19static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
20struct mm_struct init_mm = INIT_MM(init_mm);
21
22EXPORT_SYMBOL(init_mm);
23
24/*
25 * Initial thread structure. Must be aligned on an 8192-byte boundary.
26 */
27union thread_union init_thread_union
28 __attribute__((__section__(".data.init_task"))) =
29 { INIT_THREAD_INFO(init_task) };
30
31/*
32 * Initial task structure.
33 *
34 * All other task structs will be allocated on slabs in fork.c
35 */
36struct task_struct init_task = INIT_TASK(init_task);
37
38EXPORT_SYMBOL(init_task);
diff --git a/arch/avr32/kernel/irq.c b/arch/avr32/kernel/irq.c
new file mode 100644
index 000000000000..856f3548e664
--- /dev/null
+++ b/arch/avr32/kernel/irq.c
@@ -0,0 +1,71 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * Based on arch/i386/kernel/irq.c
5 * Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * This file contains the code used by various IRQ handling routines:
12 * asking for different IRQ's should be done through these routines
13 * instead of just grabbing them. Thus setups with different IRQ numbers
14 * shouldn't result in any weird surprises, and installing new handlers
15 * should be easier.
16 *
17 * IRQ's are in fact implemented a bit like signal handlers for the kernel.
18 * Naturally it's not a 1:1 relation, but there are similarities.
19 */
20
21#include <linux/interrupt.h>
22#include <linux/irq.h>
23#include <linux/kernel_stat.h>
24#include <linux/proc_fs.h>
25#include <linux/seq_file.h>
26#include <linux/sysdev.h>
27
28/*
29 * 'what should we do if we get a hw irq event on an illegal vector'.
30 * each architecture has to answer this themselves.
31 */
32void ack_bad_irq(unsigned int irq)
33{
34 printk("unexpected IRQ %u\n", irq);
35}
36
37#ifdef CONFIG_PROC_FS
38int show_interrupts(struct seq_file *p, void *v)
39{
40 int i = *(loff_t *)v, cpu;
41 struct irqaction *action;
42 unsigned long flags;
43
44 if (i == 0) {
45 seq_puts(p, " ");
46 for_each_online_cpu(cpu)
47 seq_printf(p, "CPU%d ", cpu);
48 seq_putc(p, '\n');
49 }
50
51 if (i < NR_IRQS) {
52 spin_lock_irqsave(&irq_desc[i].lock, flags);
53 action = irq_desc[i].action;
54 if (!action)
55 goto unlock;
56
57 seq_printf(p, "%3d: ", i);
58 for_each_online_cpu(cpu)
59 seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[i]);
60 seq_printf(p, " %s", action->name);
61 for (action = action->next; action; action = action->next)
62 seq_printf(p, ", %s", action->name);
63
64 seq_putc(p, '\n');
65 unlock:
66 spin_unlock_irqrestore(&irq_desc[i].lock, flags);
67 }
68
69 return 0;
70}
71#endif
diff --git a/arch/avr32/kernel/kprobes.c b/arch/avr32/kernel/kprobes.c
new file mode 100644
index 000000000000..6caf9e8d8080
--- /dev/null
+++ b/arch/avr32/kernel/kprobes.c
@@ -0,0 +1,270 @@
1/*
2 * Kernel Probes (KProbes)
3 *
4 * Copyright (C) 2005-2006 Atmel Corporation
5 *
6 * Based on arch/ppc64/kernel/kprobes.c
7 * Copyright (C) IBM Corporation, 2002, 2004
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/kprobes.h>
15#include <linux/ptrace.h>
16
17#include <asm/cacheflush.h>
18#include <asm/kdebug.h>
19#include <asm/ocd.h>
20
21DEFINE_PER_CPU(struct kprobe *, current_kprobe);
22static unsigned long kprobe_status;
23static struct pt_regs jprobe_saved_regs;
24
25int __kprobes arch_prepare_kprobe(struct kprobe *p)
26{
27 int ret = 0;
28
29 if ((unsigned long)p->addr & 0x01) {
30 printk("Attempt to register kprobe at an unaligned address\n");
31 ret = -EINVAL;
32 }
33
34 /* XXX: Might be a good idea to check if p->addr is a valid
35 * kernel address as well... */
36
37 if (!ret) {
38 pr_debug("copy kprobe at %p\n", p->addr);
39 memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
40 p->opcode = *p->addr;
41 }
42
43 return ret;
44}
45
46void __kprobes arch_arm_kprobe(struct kprobe *p)
47{
48 pr_debug("arming kprobe at %p\n", p->addr);
49 *p->addr = BREAKPOINT_INSTRUCTION;
50 flush_icache_range((unsigned long)p->addr,
51 (unsigned long)p->addr + sizeof(kprobe_opcode_t));
52}
53
54void __kprobes arch_disarm_kprobe(struct kprobe *p)
55{
56 pr_debug("disarming kprobe at %p\n", p->addr);
57 *p->addr = p->opcode;
58 flush_icache_range((unsigned long)p->addr,
59 (unsigned long)p->addr + sizeof(kprobe_opcode_t));
60}
61
62static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
63{
64 unsigned long dc;
65
66 pr_debug("preparing to singlestep over %p (PC=%08lx)\n",
67 p->addr, regs->pc);
68
69 BUG_ON(!(sysreg_read(SR) & SYSREG_BIT(SR_D)));
70
71 dc = __mfdr(DBGREG_DC);
72 dc |= DC_SS;
73 __mtdr(DBGREG_DC, dc);
74
75 /*
76 * We must run the instruction from its original location
77 * since it may actually reference PC.
78 *
79 * TODO: Do the instruction replacement directly in icache.
80 */
81 *p->addr = p->opcode;
82 flush_icache_range((unsigned long)p->addr,
83 (unsigned long)p->addr + sizeof(kprobe_opcode_t));
84}
85
86static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
87{
88 unsigned long dc;
89
90 pr_debug("resuming execution at PC=%08lx\n", regs->pc);
91
92 dc = __mfdr(DBGREG_DC);
93 dc &= ~DC_SS;
94 __mtdr(DBGREG_DC, dc);
95
96 *p->addr = BREAKPOINT_INSTRUCTION;
97 flush_icache_range((unsigned long)p->addr,
98 (unsigned long)p->addr + sizeof(kprobe_opcode_t));
99}
100
101static void __kprobes set_current_kprobe(struct kprobe *p)
102{
103 __get_cpu_var(current_kprobe) = p;
104}
105
106static int __kprobes kprobe_handler(struct pt_regs *regs)
107{
108 struct kprobe *p;
109 void *addr = (void *)regs->pc;
110 int ret = 0;
111
112 pr_debug("kprobe_handler: kprobe_running=%d\n",
113 kprobe_running());
114
115 /*
116 * We don't want to be preempted for the entire
117 * duration of kprobe processing
118 */
119 preempt_disable();
120
121 /* Check that we're not recursing */
122 if (kprobe_running()) {
123 p = get_kprobe(addr);
124 if (p) {
125 if (kprobe_status == KPROBE_HIT_SS) {
126 printk("FIXME: kprobe hit while single-stepping!\n");
127 goto no_kprobe;
128 }
129
130 printk("FIXME: kprobe hit while handling another kprobe\n");
131 goto no_kprobe;
132 } else {
133 p = kprobe_running();
134 if (p->break_handler && p->break_handler(p, regs))
135 goto ss_probe;
136 }
137 /* If it's not ours, can't be delete race, (we hold lock). */
138 goto no_kprobe;
139 }
140
141 p = get_kprobe(addr);
142 if (!p)
143 goto no_kprobe;
144
145 kprobe_status = KPROBE_HIT_ACTIVE;
146 set_current_kprobe(p);
147 if (p->pre_handler && p->pre_handler(p, regs))
148 /* handler has already set things up, so skip ss setup */
149 return 1;
150
151ss_probe:
152 prepare_singlestep(p, regs);
153 kprobe_status = KPROBE_HIT_SS;
154 return 1;
155
156no_kprobe:
157 return ret;
158}
159
160static int __kprobes post_kprobe_handler(struct pt_regs *regs)
161{
162 struct kprobe *cur = kprobe_running();
163
164 pr_debug("post_kprobe_handler, cur=%p\n", cur);
165
166 if (!cur)
167 return 0;
168
169 if (cur->post_handler) {
170 kprobe_status = KPROBE_HIT_SSDONE;
171 cur->post_handler(cur, regs, 0);
172 }
173
174 resume_execution(cur, regs);
175 reset_current_kprobe();
176 preempt_enable_no_resched();
177
178 return 1;
179}
180
181static int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
182{
183 struct kprobe *cur = kprobe_running();
184
185 pr_debug("kprobe_fault_handler: trapnr=%d\n", trapnr);
186
187 if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
188 return 1;
189
190 if (kprobe_status & KPROBE_HIT_SS) {
191 resume_execution(cur, regs);
192 preempt_enable_no_resched();
193 }
194 return 0;
195}
196
197/*
198 * Wrapper routine to for handling exceptions.
199 */
200int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
201 unsigned long val, void *data)
202{
203 struct die_args *args = (struct die_args *)data;
204 int ret = NOTIFY_DONE;
205
206 pr_debug("kprobe_exceptions_notify: val=%lu, data=%p\n",
207 val, data);
208
209 switch (val) {
210 case DIE_BREAKPOINT:
211 if (kprobe_handler(args->regs))
212 ret = NOTIFY_STOP;
213 break;
214 case DIE_SSTEP:
215 if (post_kprobe_handler(args->regs))
216 ret = NOTIFY_STOP;
217 break;
218 case DIE_FAULT:
219 if (kprobe_running()
220 && kprobe_fault_handler(args->regs, args->trapnr))
221 ret = NOTIFY_STOP;
222 break;
223 default:
224 break;
225 }
226
227 return ret;
228}
229
230int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
231{
232 struct jprobe *jp = container_of(p, struct jprobe, kp);
233
234 memcpy(&jprobe_saved_regs, regs, sizeof(struct pt_regs));
235
236 /*
237 * TODO: We should probably save some of the stack here as
238 * well, since gcc may pass arguments on the stack for certain
239 * functions (lots of arguments, large aggregates, varargs)
240 */
241
242 /* setup return addr to the jprobe handler routine */
243 regs->pc = (unsigned long)jp->entry;
244 return 1;
245}
246
247void __kprobes jprobe_return(void)
248{
249 asm volatile("breakpoint" ::: "memory");
250}
251
252int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
253{
254 /*
255 * FIXME - we should ideally be validating that we got here 'cos
256 * of the "trap" in jprobe_return() above, before restoring the
257 * saved regs...
258 */
259 memcpy(regs, &jprobe_saved_regs, sizeof(struct pt_regs));
260 return 1;
261}
262
263int __init arch_init_kprobes(void)
264{
265 printk("KPROBES: Enabling monitor mode (MM|DBE)...\n");
266 __mtdr(DBGREG_DC, DC_MM | DC_DBE);
267
268 /* TODO: Register kretprobe trampoline */
269 return 0;
270}
diff --git a/arch/avr32/kernel/module.c b/arch/avr32/kernel/module.c
new file mode 100644
index 000000000000..dfc32f2817b6
--- /dev/null
+++ b/arch/avr32/kernel/module.c
@@ -0,0 +1,324 @@
1/*
2 * AVR32-specific kernel module loader
3 *
4 * Copyright (C) 2005-2006 Atmel Corporation
5 *
6 * GOT initialization parts are based on the s390 version
7 * Copyright (C) 2002, 2003 IBM Deutschland Entwicklung GmbH,
8 * IBM Corporation
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15#include <linux/moduleloader.h>
16#include <linux/module.h>
17#include <linux/kernel.h>
18#include <linux/elf.h>
19#include <linux/vmalloc.h>
20
21void *module_alloc(unsigned long size)
22{
23 if (size == 0)
24 return NULL;
25 return vmalloc(size);
26}
27
28void module_free(struct module *mod, void *module_region)
29{
30 vfree(mod->arch.syminfo);
31 mod->arch.syminfo = NULL;
32
33 vfree(module_region);
34 /* FIXME: if module_region == mod->init_region, trim exception
35 * table entries. */
36}
37
38static inline int check_rela(Elf32_Rela *rela, struct module *module,
39 char *strings, Elf32_Sym *symbols)
40{
41 struct mod_arch_syminfo *info;
42
43 info = module->arch.syminfo + ELF32_R_SYM(rela->r_info);
44 switch (ELF32_R_TYPE(rela->r_info)) {
45 case R_AVR32_GOT32:
46 case R_AVR32_GOT16:
47 case R_AVR32_GOT8:
48 case R_AVR32_GOT21S:
49 case R_AVR32_GOT18SW: /* mcall */
50 case R_AVR32_GOT16S: /* ld.w */
51 if (rela->r_addend != 0) {
52 printk(KERN_ERR
53 "GOT relocation against %s at offset %u with addend\n",
54 strings + symbols[ELF32_R_SYM(rela->r_info)].st_name,
55 rela->r_offset);
56 return -ENOEXEC;
57 }
58 if (info->got_offset == -1UL) {
59 info->got_offset = module->arch.got_size;
60 module->arch.got_size += sizeof(void *);
61 }
62 pr_debug("GOT[%3lu] %s\n", info->got_offset,
63 strings + symbols[ELF32_R_SYM(rela->r_info)].st_name);
64 break;
65 }
66
67 return 0;
68}
69
70int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
71 char *secstrings, struct module *module)
72{
73 Elf32_Shdr *symtab;
74 Elf32_Sym *symbols;
75 Elf32_Rela *rela;
76 char *strings;
77 int nrela, i, j;
78 int ret;
79
80 /* Find the symbol table */
81 symtab = NULL;
82 for (i = 0; i < hdr->e_shnum; i++)
83 switch (sechdrs[i].sh_type) {
84 case SHT_SYMTAB:
85 symtab = &sechdrs[i];
86 break;
87 }
88 if (!symtab) {
89 printk(KERN_ERR "module %s: no symbol table\n", module->name);
90 return -ENOEXEC;
91 }
92
93 /* Allocate room for one syminfo structure per symbol. */
94 module->arch.nsyms = symtab->sh_size / sizeof(Elf_Sym);
95 module->arch.syminfo = vmalloc(module->arch.nsyms
96 * sizeof(struct mod_arch_syminfo));
97 if (!module->arch.syminfo)
98 return -ENOMEM;
99
100 symbols = (void *)hdr + symtab->sh_offset;
101 strings = (void *)hdr + sechdrs[symtab->sh_link].sh_offset;
102 for (i = 0; i < module->arch.nsyms; i++) {
103 if (symbols[i].st_shndx == SHN_UNDEF &&
104 strcmp(strings + symbols[i].st_name,
105 "_GLOBAL_OFFSET_TABLE_") == 0)
106 /* "Define" it as absolute. */
107 symbols[i].st_shndx = SHN_ABS;
108 module->arch.syminfo[i].got_offset = -1UL;
109 module->arch.syminfo[i].got_initialized = 0;
110 }
111
112 /* Allocate GOT entries for symbols that need it. */
113 module->arch.got_size = 0;
114 for (i = 0; i < hdr->e_shnum; i++) {
115 if (sechdrs[i].sh_type != SHT_RELA)
116 continue;
117 nrela = sechdrs[i].sh_size / sizeof(Elf32_Rela);
118 rela = (void *)hdr + sechdrs[i].sh_offset;
119 for (j = 0; j < nrela; j++) {
120 ret = check_rela(rela + j, module,
121 strings, symbols);
122 if (ret)
123 goto out_free_syminfo;
124 }
125 }
126
127 /*
128 * Increase core size to make room for GOT and set start
129 * offset for GOT.
130 */
131 module->core_size = ALIGN(module->core_size, 4);
132 module->arch.got_offset = module->core_size;
133 module->core_size += module->arch.got_size;
134
135 return 0;
136
137out_free_syminfo:
138 vfree(module->arch.syminfo);
139 module->arch.syminfo = NULL;
140
141 return ret;
142}
143
144static inline int reloc_overflow(struct module *module, const char *reloc_name,
145 Elf32_Addr relocation)
146{
147 printk(KERN_ERR "module %s: Value %lx does not fit relocation %s\n",
148 module->name, (unsigned long)relocation, reloc_name);
149 return -ENOEXEC;
150}
151
152#define get_u16(loc) (*((uint16_t *)loc))
153#define put_u16(loc, val) (*((uint16_t *)loc) = (val))
154
155int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
156 unsigned int symindex, unsigned int relindex,
157 struct module *module)
158{
159 Elf32_Shdr *symsec = sechdrs + symindex;
160 Elf32_Shdr *relsec = sechdrs + relindex;
161 Elf32_Shdr *dstsec = sechdrs + relsec->sh_info;
162 Elf32_Rela *rel = (void *)relsec->sh_addr;
163 unsigned int i;
164 int ret = 0;
165
166 for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rela); i++, rel++) {
167 struct mod_arch_syminfo *info;
168 Elf32_Sym *sym;
169 Elf32_Addr relocation;
170 uint32_t *location;
171 uint32_t value;
172
173 location = (void *)dstsec->sh_addr + rel->r_offset;
174 sym = (Elf32_Sym *)symsec->sh_addr + ELF32_R_SYM(rel->r_info);
175 relocation = sym->st_value + rel->r_addend;
176
177 info = module->arch.syminfo + ELF32_R_SYM(rel->r_info);
178
179 /* Initialize GOT entry if necessary */
180 switch (ELF32_R_TYPE(rel->r_info)) {
181 case R_AVR32_GOT32:
182 case R_AVR32_GOT16:
183 case R_AVR32_GOT8:
184 case R_AVR32_GOT21S:
185 case R_AVR32_GOT18SW:
186 case R_AVR32_GOT16S:
187 if (!info->got_initialized) {
188 Elf32_Addr *gotent;
189
190 gotent = (module->module_core
191 + module->arch.got_offset
192 + info->got_offset);
193 *gotent = relocation;
194 info->got_initialized = 1;
195 }
196
197 relocation = info->got_offset;
198 break;
199 }
200
201 switch (ELF32_R_TYPE(rel->r_info)) {
202 case R_AVR32_32:
203 case R_AVR32_32_CPENT:
204 *location = relocation;
205 break;
206 case R_AVR32_22H_PCREL:
207 relocation -= (Elf32_Addr)location;
208 if ((relocation & 0xffe00001) != 0
209 && (relocation & 0xffc00001) != 0xffc00000)
210 return reloc_overflow(module,
211 "R_AVR32_22H_PCREL",
212 relocation);
213 relocation >>= 1;
214
215 value = *location;
216 value = ((value & 0xe1ef0000)
217 | (relocation & 0xffff)
218 | ((relocation & 0x10000) << 4)
219 | ((relocation & 0x1e0000) << 8));
220 *location = value;
221 break;
222 case R_AVR32_11H_PCREL:
223 relocation -= (Elf32_Addr)location;
224 if ((relocation & 0xfffffc01) != 0
225 && (relocation & 0xfffff801) != 0xfffff800)
226 return reloc_overflow(module,
227 "R_AVR32_11H_PCREL",
228 relocation);
229 value = get_u16(location);
230 value = ((value & 0xf00c)
231 | ((relocation & 0x1fe) << 3)
232 | ((relocation & 0x600) >> 9));
233 put_u16(location, value);
234 break;
235 case R_AVR32_9H_PCREL:
236 relocation -= (Elf32_Addr)location;
237 if ((relocation & 0xffffff01) != 0
238 && (relocation & 0xfffffe01) != 0xfffffe00)
239 return reloc_overflow(module,
240 "R_AVR32_9H_PCREL",
241 relocation);
242 value = get_u16(location);
243 value = ((value & 0xf00f)
244 | ((relocation & 0x1fe) << 3));
245 put_u16(location, value);
246 break;
247 case R_AVR32_9UW_PCREL:
248 relocation -= ((Elf32_Addr)location) & 0xfffffffc;
249 if ((relocation & 0xfffffc03) != 0)
250 return reloc_overflow(module,
251 "R_AVR32_9UW_PCREL",
252 relocation);
253 value = get_u16(location);
254 value = ((value & 0xf80f)
255 | ((relocation & 0x1fc) << 2));
256 put_u16(location, value);
257 break;
258 case R_AVR32_GOTPC:
259 /*
260 * R6 = PC - (PC - GOT)
261 *
262 * At this point, relocation contains the
263 * value of PC. Just subtract the value of
264 * GOT, and we're done.
265 */
266 pr_debug("GOTPC: PC=0x%lx, got_offset=0x%lx, core=0x%p\n",
267 relocation, module->arch.got_offset,
268 module->module_core);
269 relocation -= ((unsigned long)module->module_core
270 + module->arch.got_offset);
271 *location = relocation;
272 break;
273 case R_AVR32_GOT18SW:
274 if ((relocation & 0xfffe0003) != 0
275 && (relocation & 0xfffc0003) != 0xffff0000)
276 return reloc_overflow(module, "R_AVR32_GOT18SW",
277 relocation);
278 relocation >>= 2;
279 /* fall through */
280 case R_AVR32_GOT16S:
281 if ((relocation & 0xffff8000) != 0
282 && (relocation & 0xffff0000) != 0xffff0000)
283 return reloc_overflow(module, "R_AVR32_GOT16S",
284 relocation);
285 pr_debug("GOT reloc @ 0x%lx -> %lu\n",
286 rel->r_offset, relocation);
287 value = *location;
288 value = ((value & 0xffff0000)
289 | (relocation & 0xffff));
290 *location = value;
291 break;
292
293 default:
294 printk(KERN_ERR "module %s: Unknown relocation: %u\n",
295 module->name, ELF32_R_TYPE(rel->r_info));
296 return -ENOEXEC;
297 }
298 }
299
300 return ret;
301}
302
303int apply_relocate(Elf32_Shdr *sechdrs, const char *strtab,
304 unsigned int symindex, unsigned int relindex,
305 struct module *module)
306{
307 printk(KERN_ERR "module %s: REL relocations are not supported\n",
308 module->name);
309 return -ENOEXEC;
310}
311
312int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
313 struct module *module)
314{
315 vfree(module->arch.syminfo);
316 module->arch.syminfo = NULL;
317
318 return 0;
319}
320
321void module_arch_cleanup(struct module *module)
322{
323
324}
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
new file mode 100644
index 000000000000..317dc50945f2
--- /dev/null
+++ b/arch/avr32/kernel/process.c
@@ -0,0 +1,276 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/sched.h>
9#include <linux/module.h>
10#include <linux/kallsyms.h>
11#include <linux/fs.h>
12#include <linux/ptrace.h>
13#include <linux/reboot.h>
14#include <linux/unistd.h>
15
16#include <asm/sysreg.h>
17#include <asm/ocd.h>
18
19void (*pm_power_off)(void) = NULL;
20EXPORT_SYMBOL(pm_power_off);
21
22/*
23 * This file handles the architecture-dependent parts of process handling..
24 */
25
26void cpu_idle(void)
27{
28 /* endless idle loop with no priority at all */
29 while (1) {
30 /* TODO: Enter sleep mode */
31 while (!need_resched())
32 cpu_relax();
33 preempt_enable_no_resched();
34 schedule();
35 preempt_disable();
36 }
37}
38
39void machine_halt(void)
40{
41}
42
43void machine_power_off(void)
44{
45}
46
47void machine_restart(char *cmd)
48{
49 __mtdr(DBGREG_DC, DC_DBE);
50 __mtdr(DBGREG_DC, DC_RES);
51 while (1) ;
52}
53
54/*
55 * PC is actually discarded when returning from a system call -- the
56 * return address must be stored in LR. This function will make sure
57 * LR points to do_exit before starting the thread.
58 *
59 * Also, when returning from fork(), r12 is 0, so we must copy the
60 * argument as well.
61 *
62 * r0 : The argument to the main thread function
63 * r1 : The address of do_exit
64 * r2 : The address of the main thread function
65 */
66asmlinkage extern void kernel_thread_helper(void);
67__asm__(" .type kernel_thread_helper, @function\n"
68 "kernel_thread_helper:\n"
69 " mov r12, r0\n"
70 " mov lr, r2\n"
71 " mov pc, r1\n"
72 " .size kernel_thread_helper, . - kernel_thread_helper");
73
74int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
75{
76 struct pt_regs regs;
77
78 memset(&regs, 0, sizeof(regs));
79
80 regs.r0 = (unsigned long)arg;
81 regs.r1 = (unsigned long)fn;
82 regs.r2 = (unsigned long)do_exit;
83 regs.lr = (unsigned long)kernel_thread_helper;
84 regs.pc = (unsigned long)kernel_thread_helper;
85 regs.sr = MODE_SUPERVISOR;
86
87 return do_fork(flags | CLONE_VM | CLONE_UNTRACED,
88 0, &regs, 0, NULL, NULL);
89}
90EXPORT_SYMBOL(kernel_thread);
91
92/*
93 * Free current thread data structures etc
94 */
95void exit_thread(void)
96{
97 /* nothing to do */
98}
99
100void flush_thread(void)
101{
102 /* nothing to do */
103}
104
105void release_thread(struct task_struct *dead_task)
106{
107 /* do nothing */
108}
109
110static const char *cpu_modes[] = {
111 "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1",
112 "Interrupt level 2", "Interrupt level 3", "Exception", "NMI"
113};
114
115void show_regs(struct pt_regs *regs)
116{
117 unsigned long sp = regs->sp;
118 unsigned long lr = regs->lr;
119 unsigned long mode = (regs->sr & MODE_MASK) >> MODE_SHIFT;
120
121 if (!user_mode(regs))
122 sp = (unsigned long)regs + FRAME_SIZE_FULL;
123
124 print_symbol("PC is at %s\n", instruction_pointer(regs));
125 print_symbol("LR is at %s\n", lr);
126 printk("pc : [<%08lx>] lr : [<%08lx>] %s\n"
127 "sp : %08lx r12: %08lx r11: %08lx\n",
128 instruction_pointer(regs),
129 lr, print_tainted(), sp, regs->r12, regs->r11);
130 printk("r10: %08lx r9 : %08lx r8 : %08lx\n",
131 regs->r10, regs->r9, regs->r8);
132 printk("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
133 regs->r7, regs->r6, regs->r5, regs->r4);
134 printk("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
135 regs->r3, regs->r2, regs->r1, regs->r0);
136 printk("Flags: %c%c%c%c%c\n",
137 regs->sr & SR_Q ? 'Q' : 'q',
138 regs->sr & SR_V ? 'V' : 'v',
139 regs->sr & SR_N ? 'N' : 'n',
140 regs->sr & SR_Z ? 'Z' : 'z',
141 regs->sr & SR_C ? 'C' : 'c');
142 printk("Mode bits: %c%c%c%c%c%c%c%c%c\n",
143 regs->sr & SR_H ? 'H' : 'h',
144 regs->sr & SR_R ? 'R' : 'r',
145 regs->sr & SR_J ? 'J' : 'j',
146 regs->sr & SR_EM ? 'E' : 'e',
147 regs->sr & SR_I3M ? '3' : '.',
148 regs->sr & SR_I2M ? '2' : '.',
149 regs->sr & SR_I1M ? '1' : '.',
150 regs->sr & SR_I0M ? '0' : '.',
151 regs->sr & SR_GM ? 'G' : 'g');
152 printk("CPU Mode: %s\n", cpu_modes[mode]);
153
154 show_trace(NULL, (unsigned long *)sp, regs);
155}
156EXPORT_SYMBOL(show_regs);
157
158/* Fill in the fpu structure for a core dump. This is easy -- we don't have any */
159int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
160{
161 /* Not valid */
162 return 0;
163}
164
165asmlinkage void ret_from_fork(void);
166
167int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
168 unsigned long unused,
169 struct task_struct *p, struct pt_regs *regs)
170{
171 struct pt_regs *childregs;
172
173 childregs = ((struct pt_regs *)(THREAD_SIZE + (unsigned long)p->thread_info)) - 1;
174 *childregs = *regs;
175
176 if (user_mode(regs))
177 childregs->sp = usp;
178 else
179 childregs->sp = (unsigned long)p->thread_info + THREAD_SIZE;
180
181 childregs->r12 = 0; /* Set return value for child */
182
183 p->thread.cpu_context.sr = MODE_SUPERVISOR | SR_GM;
184 p->thread.cpu_context.ksp = (unsigned long)childregs;
185 p->thread.cpu_context.pc = (unsigned long)ret_from_fork;
186
187 return 0;
188}
189
190/* r12-r8 are dummy parameters to force the compiler to use the stack */
191asmlinkage int sys_fork(struct pt_regs *regs)
192{
193 return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL);
194}
195
196asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
197 unsigned long parent_tidptr,
198 unsigned long child_tidptr, struct pt_regs *regs)
199{
200 if (!newsp)
201 newsp = regs->sp;
202 return do_fork(clone_flags, newsp, regs, 0,
203 (int __user *)parent_tidptr,
204 (int __user *)child_tidptr);
205}
206
207asmlinkage int sys_vfork(struct pt_regs *regs)
208{
209 return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp, regs,
210 0, NULL, NULL);
211}
212
213asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv,
214 char __user *__user *uenvp, struct pt_regs *regs)
215{
216 int error;
217 char *filename;
218
219 filename = getname(ufilename);
220 error = PTR_ERR(filename);
221 if (IS_ERR(filename))
222 goto out;
223
224 error = do_execve(filename, uargv, uenvp, regs);
225 if (error == 0)
226 current->ptrace &= ~PT_DTRACE;
227 putname(filename);
228
229out:
230 return error;
231}
232
233
234/*
235 * This function is supposed to answer the question "who called
236 * schedule()?"
237 */
238unsigned long get_wchan(struct task_struct *p)
239{
240 unsigned long pc;
241 unsigned long stack_page;
242
243 if (!p || p == current || p->state == TASK_RUNNING)
244 return 0;
245
246 stack_page = (unsigned long)p->thread_info;
247 BUG_ON(!stack_page);
248
249 /*
250 * The stored value of PC is either the address right after
251 * the call to __switch_to() or ret_from_fork.
252 */
253 pc = thread_saved_pc(p);
254 if (in_sched_functions(pc)) {
255#ifdef CONFIG_FRAME_POINTER
256 unsigned long fp = p->thread.cpu_context.r7;
257 BUG_ON(fp < stack_page || fp > (THREAD_SIZE + stack_page));
258 pc = *(unsigned long *)fp;
259#else
260 /*
261 * We depend on the frame size of schedule here, which
262 * is actually quite ugly. It might be possible to
263 * determine the frame size automatically at build
264 * time by doing this:
265 * - compile sched.c
266 * - disassemble the resulting sched.o
267 * - look for 'sub sp,??' shortly after '<schedule>:'
268 */
269 unsigned long sp = p->thread.cpu_context.ksp + 16;
270 BUG_ON(sp < stack_page || sp > (THREAD_SIZE + stack_page));
271 pc = *(unsigned long *)sp;
272#endif
273 }
274
275 return pc;
276}
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
new file mode 100644
index 000000000000..3c89e59029ab
--- /dev/null
+++ b/arch/avr32/kernel/ptrace.c
@@ -0,0 +1,371 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#undef DEBUG
9#include <linux/kernel.h>
10#include <linux/sched.h>
11#include <linux/mm.h>
12#include <linux/smp_lock.h>
13#include <linux/ptrace.h>
14#include <linux/errno.h>
15#include <linux/user.h>
16#include <linux/security.h>
17#include <linux/unistd.h>
18#include <linux/notifier.h>
19
20#include <asm/traps.h>
21#include <asm/uaccess.h>
22#include <asm/ocd.h>
23#include <asm/mmu_context.h>
24#include <asm/kdebug.h>
25
26static struct pt_regs *get_user_regs(struct task_struct *tsk)
27{
28 return (struct pt_regs *)((unsigned long) tsk->thread_info +
29 THREAD_SIZE - sizeof(struct pt_regs));
30}
31
32static void ptrace_single_step(struct task_struct *tsk)
33{
34 pr_debug("ptrace_single_step: pid=%u, SR=0x%08lx\n",
35 tsk->pid, tsk->thread.cpu_context.sr);
36 if (!(tsk->thread.cpu_context.sr & SR_D)) {
37 /*
38 * Set a breakpoint at the current pc to force the
39 * process into debug mode. The syscall/exception
40 * exit code will set a breakpoint at the return
41 * address when this flag is set.
42 */
43 pr_debug("ptrace_single_step: Setting TIF_BREAKPOINT\n");
44 set_tsk_thread_flag(tsk, TIF_BREAKPOINT);
45 }
46
47 /* The monitor code will do the actual step for us */
48 set_tsk_thread_flag(tsk, TIF_SINGLE_STEP);
49}
50
51/*
52 * Called by kernel/ptrace.c when detaching
53 *
54 * Make sure any single step bits, etc. are not set
55 */
56void ptrace_disable(struct task_struct *child)
57{
58 clear_tsk_thread_flag(child, TIF_SINGLE_STEP);
59}
60
61/*
62 * Handle hitting a breakpoint
63 */
64static void ptrace_break(struct task_struct *tsk, struct pt_regs *regs)
65{
66 siginfo_t info;
67
68 info.si_signo = SIGTRAP;
69 info.si_errno = 0;
70 info.si_code = TRAP_BRKPT;
71 info.si_addr = (void __user *)instruction_pointer(regs);
72
73 pr_debug("ptrace_break: Sending SIGTRAP to PID %u (pc = 0x%p)\n",
74 tsk->pid, info.si_addr);
75 force_sig_info(SIGTRAP, &info, tsk);
76}
77
78/*
79 * Read the word at offset "offset" into the task's "struct user". We
80 * actually access the pt_regs struct stored on the kernel stack.
81 */
82static int ptrace_read_user(struct task_struct *tsk, unsigned long offset,
83 unsigned long __user *data)
84{
85 unsigned long *regs;
86 unsigned long value;
87
88 pr_debug("ptrace_read_user(%p, %#lx, %p)\n",
89 tsk, offset, data);
90
91 if (offset & 3 || offset >= sizeof(struct user)) {
92 printk("ptrace_read_user: invalid offset 0x%08lx\n", offset);
93 return -EIO;
94 }
95
96 regs = (unsigned long *)get_user_regs(tsk);
97
98 value = 0;
99 if (offset < sizeof(struct pt_regs))
100 value = regs[offset / sizeof(regs[0])];
101
102 return put_user(value, data);
103}
104
105/*
106 * Write the word "value" to offset "offset" into the task's "struct
107 * user". We actually access the pt_regs struct stored on the kernel
108 * stack.
109 */
110static int ptrace_write_user(struct task_struct *tsk, unsigned long offset,
111 unsigned long value)
112{
113 unsigned long *regs;
114
115 if (offset & 3 || offset >= sizeof(struct user)) {
116 printk("ptrace_write_user: invalid offset 0x%08lx\n", offset);
117 return -EIO;
118 }
119
120 if (offset >= sizeof(struct pt_regs))
121 return 0;
122
123 regs = (unsigned long *)get_user_regs(tsk);
124 regs[offset / sizeof(regs[0])] = value;
125
126 return 0;
127}
128
129static int ptrace_getregs(struct task_struct *tsk, void __user *uregs)
130{
131 struct pt_regs *regs = get_user_regs(tsk);
132
133 return copy_to_user(uregs, regs, sizeof(*regs)) ? -EFAULT : 0;
134}
135
136static int ptrace_setregs(struct task_struct *tsk, const void __user *uregs)
137{
138 struct pt_regs newregs;
139 int ret;
140
141 ret = -EFAULT;
142 if (copy_from_user(&newregs, uregs, sizeof(newregs)) == 0) {
143 struct pt_regs *regs = get_user_regs(tsk);
144
145 ret = -EINVAL;
146 if (valid_user_regs(&newregs)) {
147 *regs = newregs;
148 ret = 0;
149 }
150 }
151
152 return ret;
153}
154
155long arch_ptrace(struct task_struct *child, long request, long addr, long data)
156{
157 unsigned long tmp;
158 int ret;
159
160 pr_debug("arch_ptrace(%ld, %ld, %#lx, %#lx)\n",
161 request, child->pid, addr, data);
162
163 pr_debug("ptrace: Enabling monitor mode...\n");
164 __mtdr(DBGREG_DC, __mfdr(DBGREG_DC) | DC_MM | DC_DBE);
165
166 switch (request) {
167 /* Read the word at location addr in the child process */
168 case PTRACE_PEEKTEXT:
169 case PTRACE_PEEKDATA:
170 ret = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
171 if (ret == sizeof(tmp))
172 ret = put_user(tmp, (unsigned long __user *)data);
173 else
174 ret = -EIO;
175 break;
176
177 case PTRACE_PEEKUSR:
178 ret = ptrace_read_user(child, addr,
179 (unsigned long __user *)data);
180 break;
181
182 /* Write the word in data at location addr */
183 case PTRACE_POKETEXT:
184 case PTRACE_POKEDATA:
185 ret = access_process_vm(child, addr, &data, sizeof(data), 1);
186 if (ret == sizeof(data))
187 ret = 0;
188 else
189 ret = -EIO;
190 break;
191
192 case PTRACE_POKEUSR:
193 ret = ptrace_write_user(child, addr, data);
194 break;
195
196 /* continue and stop at next (return from) syscall */
197 case PTRACE_SYSCALL:
198 /* restart after signal */
199 case PTRACE_CONT:
200 ret = -EIO;
201 if (!valid_signal(data))
202 break;
203 if (request == PTRACE_SYSCALL)
204 set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
205 else
206 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
207 child->exit_code = data;
208 /* XXX: Are we sure no breakpoints are active here? */
209 wake_up_process(child);
210 ret = 0;
211 break;
212
213 /*
214 * Make the child exit. Best I can do is send it a
215 * SIGKILL. Perhaps it should be put in the status that it
216 * wants to exit.
217 */
218 case PTRACE_KILL:
219 ret = 0;
220 if (child->exit_state == EXIT_ZOMBIE)
221 break;
222 child->exit_code = SIGKILL;
223 wake_up_process(child);
224 break;
225
226 /*
227 * execute single instruction.
228 */
229 case PTRACE_SINGLESTEP:
230 ret = -EIO;
231 if (!valid_signal(data))
232 break;
233 clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
234 ptrace_single_step(child);
235 child->exit_code = data;
236 wake_up_process(child);
237 ret = 0;
238 break;
239
240 /* Detach a process that was attached */
241 case PTRACE_DETACH:
242 ret = ptrace_detach(child, data);
243 break;
244
245 case PTRACE_GETREGS:
246 ret = ptrace_getregs(child, (void __user *)data);
247 break;
248
249 case PTRACE_SETREGS:
250 ret = ptrace_setregs(child, (const void __user *)data);
251 break;
252
253 default:
254 ret = ptrace_request(child, request, addr, data);
255 break;
256 }
257
258 pr_debug("sys_ptrace returning %d (DC = 0x%08lx)\n", ret, __mfdr(DBGREG_DC));
259 return ret;
260}
261
262asmlinkage void syscall_trace(void)
263{
264 pr_debug("syscall_trace called\n");
265 if (!test_thread_flag(TIF_SYSCALL_TRACE))
266 return;
267 if (!(current->ptrace & PT_PTRACED))
268 return;
269
270 pr_debug("syscall_trace: notifying parent\n");
271 /* The 0x80 provides a way for the tracing parent to
272 * distinguish between a syscall stop and SIGTRAP delivery */
273 ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
274 ? 0x80 : 0));
275
276 /*
277 * this isn't the same as continuing with a signal, but it
278 * will do for normal use. strace only continues with a
279 * signal if the stopping signal is not SIGTRAP. -brl
280 */
281 if (current->exit_code) {
282 pr_debug("syscall_trace: sending signal %d to PID %u\n",
283 current->exit_code, current->pid);
284 send_sig(current->exit_code, current, 1);
285 current->exit_code = 0;
286 }
287}
288
289asmlinkage void do_debug_priv(struct pt_regs *regs)
290{
291 unsigned long dc, ds;
292 unsigned long die_val;
293
294 ds = __mfdr(DBGREG_DS);
295
296 pr_debug("do_debug_priv: pc = %08lx, ds = %08lx\n", regs->pc, ds);
297
298 if (ds & DS_SSS)
299 die_val = DIE_SSTEP;
300 else
301 die_val = DIE_BREAKPOINT;
302
303 if (notify_die(die_val, regs, 0, SIGTRAP) == NOTIFY_STOP)
304 return;
305
306 if (likely(ds & DS_SSS)) {
307 extern void itlb_miss(void);
308 extern void tlb_miss_common(void);
309 struct thread_info *ti;
310
311 dc = __mfdr(DBGREG_DC);
312 dc &= ~DC_SS;
313 __mtdr(DBGREG_DC, dc);
314
315 ti = current_thread_info();
316 ti->flags |= _TIF_BREAKPOINT;
317
318 /* The TLB miss handlers don't check thread flags */
319 if ((regs->pc >= (unsigned long)&itlb_miss)
320 && (regs->pc <= (unsigned long)&tlb_miss_common)) {
321 __mtdr(DBGREG_BWA2A, sysreg_read(RAR_EX));
322 __mtdr(DBGREG_BWC2A, 0x40000001 | (get_asid() << 1));
323 }
324
325 /*
326 * If we're running in supervisor mode, the breakpoint
327 * will take us where we want directly, no need to
328 * single step.
329 */
330 if ((regs->sr & MODE_MASK) != MODE_SUPERVISOR)
331 ti->flags |= TIF_SINGLE_STEP;
332 } else {
333 panic("Unable to handle debug trap at pc = %08lx\n",
334 regs->pc);
335 }
336}
337
338/*
339 * Handle breakpoints, single steps and other debuggy things. To keep
340 * things simple initially, we run with interrupts and exceptions
341 * disabled all the time.
342 */
343asmlinkage void do_debug(struct pt_regs *regs)
344{
345 unsigned long dc, ds;
346
347 ds = __mfdr(DBGREG_DS);
348 pr_debug("do_debug: pc = %08lx, ds = %08lx\n", regs->pc, ds);
349
350 if (test_thread_flag(TIF_BREAKPOINT)) {
351 pr_debug("TIF_BREAKPOINT set\n");
352 /* We're taking care of it */
353 clear_thread_flag(TIF_BREAKPOINT);
354 __mtdr(DBGREG_BWC2A, 0);
355 }
356
357 if (test_thread_flag(TIF_SINGLE_STEP)) {
358 pr_debug("TIF_SINGLE_STEP set, ds = 0x%08lx\n", ds);
359 if (ds & DS_SSS) {
360 dc = __mfdr(DBGREG_DC);
361 dc &= ~DC_SS;
362 __mtdr(DBGREG_DC, dc);
363
364 clear_thread_flag(TIF_SINGLE_STEP);
365 ptrace_break(current, regs);
366 }
367 } else {
368 /* regular breakpoint */
369 ptrace_break(current, regs);
370 }
371}
diff --git a/arch/avr32/kernel/semaphore.c b/arch/avr32/kernel/semaphore.c
new file mode 100644
index 000000000000..1e2705a05016
--- /dev/null
+++ b/arch/avr32/kernel/semaphore.c
@@ -0,0 +1,148 @@
1/*
2 * AVR32 sempahore implementation.
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * Based on linux/arch/i386/kernel/semaphore.c
7 * Copyright (C) 1999 Linus Torvalds
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/sched.h>
15#include <linux/errno.h>
16#include <linux/module.h>
17
18#include <asm/semaphore.h>
19#include <asm/atomic.h>
20
21/*
22 * Semaphores are implemented using a two-way counter:
23 * The "count" variable is decremented for each process
24 * that tries to acquire the semaphore, while the "sleeping"
25 * variable is a count of such acquires.
26 *
27 * Notably, the inline "up()" and "down()" functions can
28 * efficiently test if they need to do any extra work (up
29 * needs to do something only if count was negative before
30 * the increment operation.
31 *
32 * "sleeping" and the contention routine ordering is protected
33 * by the spinlock in the semaphore's waitqueue head.
34 *
35 * Note that these functions are only called when there is
36 * contention on the lock, and as such all this is the
37 * "non-critical" part of the whole semaphore business. The
38 * critical part is the inline stuff in <asm/semaphore.h>
39 * where we want to avoid any extra jumps and calls.
40 */
41
42/*
43 * Logic:
44 * - only on a boundary condition do we need to care. When we go
45 * from a negative count to a non-negative, we wake people up.
46 * - when we go from a non-negative count to a negative do we
47 * (a) synchronize with the "sleeper" count and (b) make sure
48 * that we're on the wakeup list before we synchronize so that
49 * we cannot lose wakeup events.
50 */
51
52void __up(struct semaphore *sem)
53{
54 wake_up(&sem->wait);
55}
56EXPORT_SYMBOL(__up);
57
58void __sched __down(struct semaphore *sem)
59{
60 struct task_struct *tsk = current;
61 DECLARE_WAITQUEUE(wait, tsk);
62 unsigned long flags;
63
64 tsk->state = TASK_UNINTERRUPTIBLE;
65 spin_lock_irqsave(&sem->wait.lock, flags);
66 add_wait_queue_exclusive_locked(&sem->wait, &wait);
67
68 sem->sleepers++;
69 for (;;) {
70 int sleepers = sem->sleepers;
71
72 /*
73 * Add "everybody else" into it. They aren't
74 * playing, because we own the spinlock in
75 * the wait_queue_head.
76 */
77 if (atomic_add_return(sleepers - 1, &sem->count) >= 0) {
78 sem->sleepers = 0;
79 break;
80 }
81 sem->sleepers = 1; /* us - see -1 above */
82 spin_unlock_irqrestore(&sem->wait.lock, flags);
83
84 schedule();
85
86 spin_lock_irqsave(&sem->wait.lock, flags);
87 tsk->state = TASK_UNINTERRUPTIBLE;
88 }
89 remove_wait_queue_locked(&sem->wait, &wait);
90 wake_up_locked(&sem->wait);
91 spin_unlock_irqrestore(&sem->wait.lock, flags);
92 tsk->state = TASK_RUNNING;
93}
94EXPORT_SYMBOL(__down);
95
96int __sched __down_interruptible(struct semaphore *sem)
97{
98 int retval = 0;
99 struct task_struct *tsk = current;
100 DECLARE_WAITQUEUE(wait, tsk);
101 unsigned long flags;
102
103 tsk->state = TASK_INTERRUPTIBLE;
104 spin_lock_irqsave(&sem->wait.lock, flags);
105 add_wait_queue_exclusive_locked(&sem->wait, &wait);
106
107 sem->sleepers++;
108 for (;;) {
109 int sleepers = sem->sleepers;
110
111 /*
112 * With signals pending, this turns into the trylock
113 * failure case - we won't be sleeping, and we can't
114 * get the lock as it has contention. Just correct the
115 * count and exit.
116 */
117 if (signal_pending(current)) {
118 retval = -EINTR;
119 sem->sleepers = 0;
120 atomic_add(sleepers, &sem->count);
121 break;
122 }
123
124 /*
125 * Add "everybody else" into it. They aren't
126 * playing, because we own the spinlock in
127 * the wait_queue_head.
128 */
129 if (atomic_add_return(sleepers - 1, &sem->count) >= 0) {
130 sem->sleepers = 0;
131 break;
132 }
133 sem->sleepers = 1; /* us - see -1 above */
134 spin_unlock_irqrestore(&sem->wait.lock, flags);
135
136 schedule();
137
138 spin_lock_irqsave(&sem->wait.lock, flags);
139 tsk->state = TASK_INTERRUPTIBLE;
140 }
141 remove_wait_queue_locked(&sem->wait, &wait);
142 wake_up_locked(&sem->wait);
143 spin_unlock_irqrestore(&sem->wait.lock, flags);
144
145 tsk->state = TASK_RUNNING;
146 return retval;
147}
148EXPORT_SYMBOL(__down_interruptible);
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
new file mode 100644
index 000000000000..5d68f3c6990b
--- /dev/null
+++ b/arch/avr32/kernel/setup.c
@@ -0,0 +1,335 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/clk.h>
10#include <linux/init.h>
11#include <linux/sched.h>
12#include <linux/console.h>
13#include <linux/ioport.h>
14#include <linux/bootmem.h>
15#include <linux/fs.h>
16#include <linux/module.h>
17#include <linux/root_dev.h>
18#include <linux/cpu.h>
19
20#include <asm/sections.h>
21#include <asm/processor.h>
22#include <asm/pgtable.h>
23#include <asm/setup.h>
24#include <asm/sysreg.h>
25
26#include <asm/arch/board.h>
27#include <asm/arch/init.h>
28
29extern int root_mountflags;
30
31/*
32 * Bootloader-provided information about physical memory
33 */
34struct tag_mem_range *mem_phys;
35struct tag_mem_range *mem_reserved;
36struct tag_mem_range *mem_ramdisk;
37
38/*
39 * Initialize loops_per_jiffy as 5000000 (500MIPS).
40 * Better make it too large than too small...
41 */
42struct avr32_cpuinfo boot_cpu_data = {
43 .loops_per_jiffy = 5000000
44};
45EXPORT_SYMBOL(boot_cpu_data);
46
47static char command_line[COMMAND_LINE_SIZE];
48
49/*
50 * Should be more than enough, but if you have a _really_ complex
51 * setup, you might need to increase the size of this...
52 */
53static struct tag_mem_range __initdata mem_range_cache[32];
54static unsigned mem_range_next_free;
55
56/*
57 * Standard memory resources
58 */
59static struct resource mem_res[] = {
60 {
61 .name = "Kernel code",
62 .start = 0,
63 .end = 0,
64 .flags = IORESOURCE_MEM
65 },
66 {
67 .name = "Kernel data",
68 .start = 0,
69 .end = 0,
70 .flags = IORESOURCE_MEM,
71 },
72};
73
74#define kernel_code mem_res[0]
75#define kernel_data mem_res[1]
76
77/*
78 * Early framebuffer allocation. Works as follows:
79 * - If fbmem_size is zero, nothing will be allocated or reserved.
80 * - If fbmem_start is zero when setup_bootmem() is called,
81 * fbmem_size bytes will be allocated from the bootmem allocator.
82 * - If fbmem_start is nonzero, an area of size fbmem_size will be
83 * reserved at the physical address fbmem_start if necessary. If
84 * the area isn't in a memory region known to the kernel, it will
85 * be left alone.
86 *
87 * Board-specific code may use these variables to set up platform data
88 * for the framebuffer driver if fbmem_size is nonzero.
89 */
90static unsigned long __initdata fbmem_start;
91static unsigned long __initdata fbmem_size;
92
93/*
94 * "fbmem=xxx[kKmM]" allocates the specified amount of boot memory for
95 * use as framebuffer.
96 *
97 * "fbmem=xxx[kKmM]@yyy[kKmM]" defines a memory region of size xxx and
98 * starting at yyy to be reserved for use as framebuffer.
99 *
100 * The kernel won't verify that the memory region starting at yyy
101 * actually contains usable RAM.
102 */
103static int __init early_parse_fbmem(char *p)
104{
105 fbmem_size = memparse(p, &p);
106 if (*p == '@')
107 fbmem_start = memparse(p, &p);
108 return 0;
109}
110early_param("fbmem", early_parse_fbmem);
111
112static inline void __init resource_init(void)
113{
114 struct tag_mem_range *region;
115
116 kernel_code.start = __pa(init_mm.start_code);
117 kernel_code.end = __pa(init_mm.end_code - 1);
118 kernel_data.start = __pa(init_mm.end_code);
119 kernel_data.end = __pa(init_mm.brk - 1);
120
121 for (region = mem_phys; region; region = region->next) {
122 struct resource *res;
123 unsigned long phys_start, phys_end;
124
125 if (region->size == 0)
126 continue;
127
128 phys_start = region->addr;
129 phys_end = phys_start + region->size - 1;
130
131 res = alloc_bootmem_low(sizeof(*res));
132 res->name = "System RAM";
133 res->start = phys_start;
134 res->end = phys_end;
135 res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
136
137 request_resource (&iomem_resource, res);
138
139 if (kernel_code.start >= res->start &&
140 kernel_code.end <= res->end)
141 request_resource (res, &kernel_code);
142 if (kernel_data.start >= res->start &&
143 kernel_data.end <= res->end)
144 request_resource (res, &kernel_data);
145 }
146}
147
148static int __init parse_tag_core(struct tag *tag)
149{
150 if (tag->hdr.size > 2) {
151 if ((tag->u.core.flags & 1) == 0)
152 root_mountflags &= ~MS_RDONLY;
153 ROOT_DEV = new_decode_dev(tag->u.core.rootdev);
154 }
155 return 0;
156}
157__tagtable(ATAG_CORE, parse_tag_core);
158
159static int __init parse_tag_mem_range(struct tag *tag,
160 struct tag_mem_range **root)
161{
162 struct tag_mem_range *cur, **pprev;
163 struct tag_mem_range *new;
164
165 /*
166 * Ignore zero-sized entries. If we're running standalone, the
167 * SDRAM code may emit such entries if something goes
168 * wrong...
169 */
170 if (tag->u.mem_range.size == 0)
171 return 0;
172
173 /*
174 * Copy the data so the bootmem init code doesn't need to care
175 * about it.
176 */
177 if (mem_range_next_free >=
178 (sizeof(mem_range_cache) / sizeof(mem_range_cache[0])))
179 panic("Physical memory map too complex!\n");
180
181 new = &mem_range_cache[mem_range_next_free++];
182 *new = tag->u.mem_range;
183
184 pprev = root;
185 cur = *root;
186 while (cur) {
187 pprev = &cur->next;
188 cur = cur->next;
189 }
190
191 *pprev = new;
192 new->next = NULL;
193
194 return 0;
195}
196
197static int __init parse_tag_mem(struct tag *tag)
198{
199 return parse_tag_mem_range(tag, &mem_phys);
200}
201__tagtable(ATAG_MEM, parse_tag_mem);
202
203static int __init parse_tag_cmdline(struct tag *tag)
204{
205 strlcpy(saved_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE);
206 return 0;
207}
208__tagtable(ATAG_CMDLINE, parse_tag_cmdline);
209
210static int __init parse_tag_rdimg(struct tag *tag)
211{
212 return parse_tag_mem_range(tag, &mem_ramdisk);
213}
214__tagtable(ATAG_RDIMG, parse_tag_rdimg);
215
216static int __init parse_tag_clock(struct tag *tag)
217{
218 /*
219 * We'll figure out the clocks by peeking at the system
220 * manager regs directly.
221 */
222 return 0;
223}
224__tagtable(ATAG_CLOCK, parse_tag_clock);
225
226static int __init parse_tag_rsvd_mem(struct tag *tag)
227{
228 return parse_tag_mem_range(tag, &mem_reserved);
229}
230__tagtable(ATAG_RSVD_MEM, parse_tag_rsvd_mem);
231
232static int __init parse_tag_ethernet(struct tag *tag)
233{
234#if 0
235 const struct platform_device *pdev;
236
237 /*
238 * We really need a bus type that supports "classes"...this
239 * will do for now (until we must handle other kinds of
240 * ethernet controllers)
241 */
242 pdev = platform_get_device("macb", tag->u.ethernet.mac_index);
243 if (pdev && pdev->dev.platform_data) {
244 struct eth_platform_data *data = pdev->dev.platform_data;
245
246 data->valid = 1;
247 data->mii_phy_addr = tag->u.ethernet.mii_phy_addr;
248 memcpy(data->hw_addr, tag->u.ethernet.hw_address,
249 sizeof(data->hw_addr));
250 }
251#endif
252 return 0;
253}
254__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
255
256/*
257 * Scan the tag table for this tag, and call its parse function. The
258 * tag table is built by the linker from all the __tagtable
259 * declarations.
260 */
261static int __init parse_tag(struct tag *tag)
262{
263 extern struct tagtable __tagtable_begin, __tagtable_end;
264 struct tagtable *t;
265
266 for (t = &__tagtable_begin; t < &__tagtable_end; t++)
267 if (tag->hdr.tag == t->tag) {
268 t->parse(tag);
269 break;
270 }
271
272 return t < &__tagtable_end;
273}
274
275/*
276 * Parse all tags in the list we got from the boot loader
277 */
278static void __init parse_tags(struct tag *t)
279{
280 for (; t->hdr.tag != ATAG_NONE; t = tag_next(t))
281 if (!parse_tag(t))
282 printk(KERN_WARNING
283 "Ignoring unrecognised tag 0x%08x\n",
284 t->hdr.tag);
285}
286
287void __init setup_arch (char **cmdline_p)
288{
289 struct clk *cpu_clk;
290
291 parse_tags(bootloader_tags);
292
293 setup_processor();
294 setup_platform();
295
296 cpu_clk = clk_get(NULL, "cpu");
297 if (IS_ERR(cpu_clk)) {
298 printk(KERN_WARNING "Warning: Unable to get CPU clock\n");
299 } else {
300 unsigned long cpu_hz = clk_get_rate(cpu_clk);
301
302 /*
303 * Well, duh, but it's probably a good idea to
304 * increment the use count.
305 */
306 clk_enable(cpu_clk);
307
308 boot_cpu_data.clk = cpu_clk;
309 boot_cpu_data.loops_per_jiffy = cpu_hz * 4;
310 printk("CPU: Running at %lu.%03lu MHz\n",
311 ((cpu_hz + 500) / 1000) / 1000,
312 ((cpu_hz + 500) / 1000) % 1000);
313 }
314
315 init_mm.start_code = (unsigned long) &_text;
316 init_mm.end_code = (unsigned long) &_etext;
317 init_mm.end_data = (unsigned long) &_edata;
318 init_mm.brk = (unsigned long) &_end;
319
320 strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE);
321 *cmdline_p = command_line;
322 parse_early_param();
323
324 setup_bootmem();
325
326 board_setup_fbmem(fbmem_start, fbmem_size);
327
328#ifdef CONFIG_VT
329 conswitchp = &dummy_con;
330#endif
331
332 paging_init();
333
334 resource_init();
335}
diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
new file mode 100644
index 000000000000..33096651c24f
--- /dev/null
+++ b/arch/avr32/kernel/signal.c
@@ -0,0 +1,328 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * Based on linux/arch/sh/kernel/signal.c
5 * Copyright (C) 1999, 2000 Niibe Yutaka & Kaz Kojima
6 * Copyright (C) 1991, 1992 Linus Torvalds
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 version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/sched.h>
14#include <linux/mm.h>
15#include <linux/errno.h>
16#include <linux/ptrace.h>
17#include <linux/unistd.h>
18#include <linux/suspend.h>
19
20#include <asm/uaccess.h>
21#include <asm/ucontext.h>
22
23#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
24
25asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
26 struct pt_regs *regs)
27{
28 return do_sigaltstack(uss, uoss, regs->sp);
29}
30
31struct rt_sigframe
32{
33 struct siginfo info;
34 struct ucontext uc;
35 unsigned long retcode;
36};
37
38static int
39restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
40{
41 int err = 0;
42
43#define COPY(x) err |= __get_user(regs->x, &sc->x)
44 COPY(sr);
45 COPY(pc);
46 COPY(lr);
47 COPY(sp);
48 COPY(r12);
49 COPY(r11);
50 COPY(r10);
51 COPY(r9);
52 COPY(r8);
53 COPY(r7);
54 COPY(r6);
55 COPY(r5);
56 COPY(r4);
57 COPY(r3);
58 COPY(r2);
59 COPY(r1);
60 COPY(r0);
61#undef COPY
62
63 /*
64 * Don't allow anyone to pretend they're running in supervisor
65 * mode or something...
66 */
67 err |= !valid_user_regs(regs);
68
69 return err;
70}
71
72
73asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
74{
75 struct rt_sigframe __user *frame;
76 sigset_t set;
77
78 frame = (struct rt_sigframe __user *)regs->sp;
79 pr_debug("SIG return: frame = %p\n", frame);
80
81 if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
82 goto badframe;
83
84 if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
85 goto badframe;
86
87 sigdelsetmask(&set, ~_BLOCKABLE);
88 spin_lock_irq(&current->sighand->siglock);
89 current->blocked = set;
90 recalc_sigpending();
91 spin_unlock_irq(&current->sighand->siglock);
92
93 if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
94 goto badframe;
95
96 pr_debug("Context restored: pc = %08lx, lr = %08lx, sp = %08lx\n",
97 regs->pc, regs->lr, regs->sp);
98
99 return regs->r12;
100
101badframe:
102 force_sig(SIGSEGV, current);
103 return 0;
104}
105
106static int
107setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs)
108{
109 int err = 0;
110
111#define COPY(x) err |= __put_user(regs->x, &sc->x)
112 COPY(sr);
113 COPY(pc);
114 COPY(lr);
115 COPY(sp);
116 COPY(r12);
117 COPY(r11);
118 COPY(r10);
119 COPY(r9);
120 COPY(r8);
121 COPY(r7);
122 COPY(r6);
123 COPY(r5);
124 COPY(r4);
125 COPY(r3);
126 COPY(r2);
127 COPY(r1);
128 COPY(r0);
129#undef COPY
130
131 return err;
132}
133
134static inline void __user *
135get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, int framesize)
136{
137 unsigned long sp = regs->sp;
138
139 if ((ka->sa.sa_flags & SA_ONSTACK) && !sas_ss_flags(sp))
140 sp = current->sas_ss_sp + current->sas_ss_size;
141
142 return (void __user *)((sp - framesize) & ~3);
143}
144
145static int
146setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
147 sigset_t *set, struct pt_regs *regs)
148{
149 struct rt_sigframe __user *frame;
150 int err = 0;
151
152 frame = get_sigframe(ka, regs, sizeof(*frame));
153 err = -EFAULT;
154 if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
155 goto out;
156
157 /*
158 * Set up the return code:
159 *
160 * mov r8, __NR_rt_sigreturn
161 * scall
162 *
163 * Note: This will blow up since we're using a non-executable
164 * stack. Better use SA_RESTORER.
165 */
166#if __NR_rt_sigreturn > 127
167# error __NR_rt_sigreturn must be < 127 to fit in a short mov
168#endif
169 err = __put_user(0x3008d733 | (__NR_rt_sigreturn << 20),
170 &frame->retcode);
171
172 err |= copy_siginfo_to_user(&frame->info, info);
173
174 /* Set up the ucontext */
175 err |= __put_user(0, &frame->uc.uc_flags);
176 err |= __put_user(NULL, &frame->uc.uc_link);
177 err |= __put_user((void __user *)current->sas_ss_sp,
178 &frame->uc.uc_stack.ss_sp);
179 err |= __put_user(sas_ss_flags(regs->sp),
180 &frame->uc.uc_stack.ss_flags);
181 err |= __put_user(current->sas_ss_size,
182 &frame->uc.uc_stack.ss_size);
183 err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
184 err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
185
186 if (err)
187 goto out;
188
189 regs->r12 = sig;
190 regs->r11 = (unsigned long) &frame->info;
191 regs->r10 = (unsigned long) &frame->uc;
192 regs->sp = (unsigned long) frame;
193 if (ka->sa.sa_flags & SA_RESTORER)
194 regs->lr = (unsigned long)ka->sa.sa_restorer;
195 else {
196 printk(KERN_NOTICE "[%s:%d] did not set SA_RESTORER\n",
197 current->comm, current->pid);
198 regs->lr = (unsigned long) &frame->retcode;
199 }
200
201 pr_debug("SIG deliver [%s:%d]: sig=%d sp=0x%lx pc=0x%lx->0x%p lr=0x%lx\n",
202 current->comm, current->pid, sig, regs->sp,
203 regs->pc, ka->sa.sa_handler, regs->lr);
204
205 regs->pc = (unsigned long) ka->sa.sa_handler;
206
207out:
208 return err;
209}
210
211static inline void restart_syscall(struct pt_regs *regs)
212{
213 if (regs->r12 == -ERESTART_RESTARTBLOCK)
214 regs->r8 = __NR_restart_syscall;
215 else
216 regs->r12 = regs->r12_orig;
217 regs->pc -= 2;
218}
219
220static inline void
221handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
222 sigset_t *oldset, struct pt_regs *regs, int syscall)
223{
224 int ret;
225
226 /*
227 * Set up the stack frame
228 */
229 ret = setup_rt_frame(sig, ka, info, oldset, regs);
230
231 /*
232 * Check that the resulting registers are sane
233 */
234 ret |= !valid_user_regs(regs);
235
236 /*
237 * Block the signal if we were unsuccessful.
238 */
239 if (ret != 0 || !(ka->sa.sa_flags & SA_NODEFER)) {
240 spin_lock_irq(&current->sighand->siglock);
241 sigorsets(&current->blocked, &current->blocked,
242 &ka->sa.sa_mask);
243 sigaddset(&current->blocked, sig);
244 recalc_sigpending();
245 spin_unlock_irq(&current->sighand->siglock);
246 }
247
248 if (ret == 0)
249 return;
250
251 force_sigsegv(sig, current);
252}
253
254/*
255 * Note that 'init' is a special process: it doesn't get signals it
256 * doesn't want to handle. Thus you cannot kill init even with a
257 * SIGKILL even by mistake.
258 */
259int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
260{
261 siginfo_t info;
262 int signr;
263 struct k_sigaction ka;
264
265 /*
266 * We want the common case to go fast, which is why we may in
267 * certain cases get here from kernel mode. Just return
268 * without doing anything if so.
269 */
270 if (!user_mode(regs))
271 return 0;
272
273 if (try_to_freeze()) {
274 signr = 0;
275 if (!signal_pending(current))
276 goto no_signal;
277 }
278
279 if (test_thread_flag(TIF_RESTORE_SIGMASK))
280 oldset = &current->saved_sigmask;
281 else if (!oldset)
282 oldset = &current->blocked;
283
284 signr = get_signal_to_deliver(&info, &ka, regs, NULL);
285no_signal:
286 if (syscall) {
287 switch (regs->r12) {
288 case -ERESTART_RESTARTBLOCK:
289 case -ERESTARTNOHAND:
290 if (signr > 0) {
291 regs->r12 = -EINTR;
292 break;
293 }
294 /* fall through */
295 case -ERESTARTSYS:
296 if (signr > 0 && !(ka.sa.sa_flags & SA_RESTART)) {
297 regs->r12 = -EINTR;
298 break;
299 }
300 /* fall through */
301 case -ERESTARTNOINTR:
302 restart_syscall(regs);
303 }
304 }
305
306 if (signr == 0) {
307 /* No signal to deliver -- put the saved sigmask back */
308 if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
309 clear_thread_flag(TIF_RESTORE_SIGMASK);
310 sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
311 }
312 return 0;
313 }
314
315 handle_signal(signr, &ka, &info, oldset, regs, syscall);
316 return 1;
317}
318
319asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti)
320{
321 int syscall = 0;
322
323 if ((sysreg_read(SR) & MODE_MASK) == MODE_SUPERVISOR)
324 syscall = 1;
325
326 if (ti->flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
327 do_signal(regs, &current->blocked, syscall);
328}
diff --git a/arch/avr32/kernel/switch_to.S b/arch/avr32/kernel/switch_to.S
new file mode 100644
index 000000000000..a48d046723c5
--- /dev/null
+++ b/arch/avr32/kernel/switch_to.S
@@ -0,0 +1,35 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <asm/sysreg.h>
10
11 .text
12 .global __switch_to
13 .type __switch_to, @function
14
15 /* Switch thread context from "prev" to "next", returning "last"
16 * r12 : prev
17 * r11 : &prev->thread + 1
18 * r10 : &next->thread
19 */
20__switch_to:
21 stm --r11, r0,r1,r2,r3,r4,r5,r6,r7,sp,lr
22 mfsr r9, SYSREG_SR
23 st.w --r11, r9
24 ld.w r8, r10++
25 /*
26 * schedule() may have been called from a mode with a different
27 * set of registers. Make sure we don't lose anything here.
28 */
29 pushm r10,r12
30 mtsr SYSREG_SR, r8
31 frs /* flush the return stack */
32 sub pc, -2 /* flush the pipeline */
33 popm r10,r12
34 ldm r10++, r0,r1,r2,r3,r4,r5,r6,r7,sp,pc
35 .size __switch_to, . - __switch_to
diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c
new file mode 100644
index 000000000000..6ec5693da448
--- /dev/null
+++ b/arch/avr32/kernel/sys_avr32.c
@@ -0,0 +1,51 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/errno.h>
9#include <linux/fs.h>
10#include <linux/file.h>
11#include <linux/mm.h>
12#include <linux/unistd.h>
13
14#include <asm/mman.h>
15#include <asm/uaccess.h>
16
17asmlinkage int sys_pipe(unsigned long __user *filedes)
18{
19 int fd[2];
20 int error;
21
22 error = do_pipe(fd);
23 if (!error) {
24 if (copy_to_user(filedes, fd, sizeof(fd)))
25 error = -EFAULT;
26 }
27 return error;
28}
29
30asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
31 unsigned long prot, unsigned long flags,
32 unsigned long fd, off_t offset)
33{
34 int error = -EBADF;
35 struct file *file = NULL;
36
37 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
38 if (!(flags & MAP_ANONYMOUS)) {
39 file = fget(fd);
40 if (!file)
41 return error;
42 }
43
44 down_write(&current->mm->mmap_sem);
45 error = do_mmap_pgoff(file, addr, len, prot, flags, offset);
46 up_write(&current->mm->mmap_sem);
47
48 if (file)
49 fput(file);
50 return error;
51}
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S
new file mode 100644
index 000000000000..7589a9b426cb
--- /dev/null
+++ b/arch/avr32/kernel/syscall-stubs.S
@@ -0,0 +1,102 @@
1/*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9/*
10 * Stubs for syscalls that require access to pt_regs or that take more
11 * than five parameters.
12 */
13
14#define ARG6 r3
15
16 .text
17 .global __sys_rt_sigsuspend
18 .type __sys_rt_sigsuspend,@function
19__sys_rt_sigsuspend:
20 mov r10, sp
21 rjmp sys_rt_sigsuspend
22
23 .global __sys_sigaltstack
24 .type __sys_sigaltstack,@function
25__sys_sigaltstack:
26 mov r10, sp
27 rjmp sys_sigaltstack
28
29 .global __sys_rt_sigreturn
30 .type __sys_rt_sigreturn,@function
31__sys_rt_sigreturn:
32 mov r12, sp
33 rjmp sys_rt_sigreturn
34
35 .global __sys_fork
36 .type __sys_fork,@function
37__sys_fork:
38 mov r12, sp
39 rjmp sys_fork
40
41 .global __sys_clone
42 .type __sys_clone,@function
43__sys_clone:
44 mov r8, sp
45 rjmp sys_clone
46
47 .global __sys_vfork
48 .type __sys_vfork,@function
49__sys_vfork:
50 mov r12, sp
51 rjmp sys_vfork
52
53 .global __sys_execve
54 .type __sys_execve,@function
55__sys_execve:
56 mov r9, sp
57 rjmp sys_execve
58
59 .global __sys_mmap2
60 .type __sys_mmap2,@function
61__sys_mmap2:
62 pushm lr
63 st.w --sp, ARG6
64 rcall sys_mmap2
65 sub sp, -4
66 popm pc
67
68 .global __sys_sendto
69 .type __sys_sendto,@function
70__sys_sendto:
71 pushm lr
72 st.w --sp, ARG6
73 rcall sys_sendto
74 sub sp, -4
75 popm pc
76
77 .global __sys_recvfrom
78 .type __sys_recvfrom,@function
79__sys_recvfrom:
80 pushm lr
81 st.w --sp, ARG6
82 rcall sys_recvfrom
83 sub sp, -4
84 popm pc
85
86 .global __sys_pselect6
87 .type __sys_pselect6,@function
88__sys_pselect6:
89 pushm lr
90 st.w --sp, ARG6
91 rcall sys_pselect6
92 sub sp, -4
93 popm pc
94
95 .global __sys_splice
96 .type __sys_splice,@function
97__sys_splice:
98 pushm lr
99 st.w --sp, ARG6
100 rcall sys_splice
101 sub sp, -4
102 popm pc
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
new file mode 100644
index 000000000000..63b206965d05
--- /dev/null
+++ b/arch/avr32/kernel/syscall_table.S
@@ -0,0 +1,289 @@
1/*
2 * AVR32 system call table
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#if !defined(CONFIG_NFSD) && !defined(CONFIG_NFSD_MODULE)
12#define sys_nfsservctl sys_ni_syscall
13#endif
14
15#if !defined(CONFIG_SYSV_IPC)
16# define sys_ipc sys_ni_syscall
17#endif
18
19 .section .rodata,"a",@progbits
20 .type sys_call_table,@object
21 .global sys_call_table
22 .align 2
23sys_call_table:
24 .long sys_restart_syscall
25 .long sys_exit
26 .long __sys_fork
27 .long sys_read
28 .long sys_write
29 .long sys_open /* 5 */
30 .long sys_close
31 .long sys_umask
32 .long sys_creat
33 .long sys_link
34 .long sys_unlink /* 10 */
35 .long __sys_execve
36 .long sys_chdir
37 .long sys_time
38 .long sys_mknod
39 .long sys_chmod /* 15 */
40 .long sys_chown
41 .long sys_lchown
42 .long sys_lseek
43 .long sys_llseek
44 .long sys_getpid /* 20 */
45 .long sys_mount
46 .long sys_umount
47 .long sys_setuid
48 .long sys_getuid
49 .long sys_stime /* 25 */
50 .long sys_ptrace
51 .long sys_alarm
52 .long sys_pause
53 .long sys_utime
54 .long sys_newstat /* 30 */
55 .long sys_newfstat
56 .long sys_newlstat
57 .long sys_access
58 .long sys_chroot
59 .long sys_sync /* 35 */
60 .long sys_fsync
61 .long sys_kill
62 .long sys_rename
63 .long sys_mkdir
64 .long sys_rmdir /* 40 */
65 .long sys_dup
66 .long sys_pipe
67 .long sys_times
68 .long __sys_clone
69 .long sys_brk /* 45 */
70 .long sys_setgid
71 .long sys_getgid
72 .long sys_getcwd
73 .long sys_geteuid
74 .long sys_getegid /* 50 */
75 .long sys_acct
76 .long sys_setfsuid
77 .long sys_setfsgid
78 .long sys_ioctl
79 .long sys_fcntl /* 55 */
80 .long sys_setpgid
81 .long sys_mremap
82 .long sys_setresuid
83 .long sys_getresuid
84 .long sys_setreuid /* 60 */
85 .long sys_setregid
86 .long sys_ustat
87 .long sys_dup2
88 .long sys_getppid
89 .long sys_getpgrp /* 65 */
90 .long sys_setsid
91 .long sys_rt_sigaction
92 .long __sys_rt_sigreturn
93 .long sys_rt_sigprocmask
94 .long sys_rt_sigpending /* 70 */
95 .long sys_rt_sigtimedwait
96 .long sys_rt_sigqueueinfo
97 .long __sys_rt_sigsuspend
98 .long sys_sethostname
99 .long sys_setrlimit /* 75 */
100 .long sys_getrlimit
101 .long sys_getrusage
102 .long sys_gettimeofday
103 .long sys_settimeofday
104 .long sys_getgroups /* 80 */
105 .long sys_setgroups
106 .long sys_select
107 .long sys_symlink
108 .long sys_fchdir
109 .long sys_readlink /* 85 */
110 .long sys_pread64
111 .long sys_pwrite64
112 .long sys_swapon
113 .long sys_reboot
114 .long __sys_mmap2 /* 90 */
115 .long sys_munmap
116 .long sys_truncate
117 .long sys_ftruncate
118 .long sys_fchmod
119 .long sys_fchown /* 95 */
120 .long sys_getpriority
121 .long sys_setpriority
122 .long sys_wait4
123 .long sys_statfs
124 .long sys_fstatfs /* 100 */
125 .long sys_vhangup
126 .long __sys_sigaltstack
127 .long sys_syslog
128 .long sys_setitimer
129 .long sys_getitimer /* 105 */
130 .long sys_swapoff
131 .long sys_sysinfo
132 .long sys_ipc
133 .long sys_sendfile
134 .long sys_setdomainname /* 110 */
135 .long sys_newuname
136 .long sys_adjtimex
137 .long sys_mprotect
138 .long __sys_vfork
139 .long sys_init_module /* 115 */
140 .long sys_delete_module
141 .long sys_quotactl
142 .long sys_getpgid
143 .long sys_bdflush
144 .long sys_sysfs /* 120 */
145 .long sys_personality
146 .long sys_ni_syscall /* reserved for afs_syscall */
147 .long sys_getdents
148 .long sys_flock
149 .long sys_msync /* 125 */
150 .long sys_readv
151 .long sys_writev
152 .long sys_getsid
153 .long sys_fdatasync
154 .long sys_sysctl /* 130 */
155 .long sys_mlock
156 .long sys_munlock
157 .long sys_mlockall
158 .long sys_munlockall
159 .long sys_sched_setparam /* 135 */
160 .long sys_sched_getparam
161 .long sys_sched_setscheduler
162 .long sys_sched_getscheduler
163 .long sys_sched_yield
164 .long sys_sched_get_priority_max /* 140 */
165 .long sys_sched_get_priority_min
166 .long sys_sched_rr_get_interval
167 .long sys_nanosleep
168 .long sys_poll
169 .long sys_nfsservctl /* 145 */
170 .long sys_setresgid
171 .long sys_getresgid
172 .long sys_prctl
173 .long sys_socket
174 .long sys_bind /* 150 */
175 .long sys_connect
176 .long sys_listen
177 .long sys_accept
178 .long sys_getsockname
179 .long sys_getpeername /* 155 */
180 .long sys_socketpair
181 .long sys_send
182 .long sys_recv
183 .long __sys_sendto
184 .long __sys_recvfrom /* 160 */
185 .long sys_shutdown
186 .long sys_setsockopt
187 .long sys_getsockopt
188 .long sys_sendmsg
189 .long sys_recvmsg /* 165 */
190 .long sys_truncate64
191 .long sys_ftruncate64
192 .long sys_stat64
193 .long sys_lstat64
194 .long sys_fstat64 /* 170 */
195 .long sys_pivot_root
196 .long sys_mincore
197 .long sys_madvise
198 .long sys_getdents64
199 .long sys_fcntl64 /* 175 */
200 .long sys_gettid
201 .long sys_readahead
202 .long sys_setxattr
203 .long sys_lsetxattr
204 .long sys_fsetxattr /* 180 */
205 .long sys_getxattr
206 .long sys_lgetxattr
207 .long sys_fgetxattr
208 .long sys_listxattr
209 .long sys_llistxattr /* 185 */
210 .long sys_flistxattr
211 .long sys_removexattr
212 .long sys_lremovexattr
213 .long sys_fremovexattr
214 .long sys_tkill /* 190 */
215 .long sys_sendfile64
216 .long sys_futex
217 .long sys_sched_setaffinity
218 .long sys_sched_getaffinity
219 .long sys_capget /* 195 */
220 .long sys_capset
221 .long sys_io_setup
222 .long sys_io_destroy
223 .long sys_io_getevents
224 .long sys_io_submit /* 200 */
225 .long sys_io_cancel
226 .long sys_fadvise64
227 .long sys_exit_group
228 .long sys_lookup_dcookie
229 .long sys_epoll_create /* 205 */
230 .long sys_epoll_ctl
231 .long sys_epoll_wait
232 .long sys_remap_file_pages
233 .long sys_set_tid_address
234 .long sys_timer_create /* 210 */
235 .long sys_timer_settime
236 .long sys_timer_gettime
237 .long sys_timer_getoverrun
238 .long sys_timer_delete
239 .long sys_clock_settime /* 215 */
240 .long sys_clock_gettime
241 .long sys_clock_getres
242 .long sys_clock_nanosleep
243 .long sys_statfs64
244 .long sys_fstatfs64 /* 220 */
245 .long sys_tgkill
246 .long sys_ni_syscall /* reserved for TUX */
247 .long sys_utimes
248 .long sys_fadvise64_64
249 .long sys_cacheflush /* 225 */
250 .long sys_ni_syscall /* sys_vserver */
251 .long sys_mq_open
252 .long sys_mq_unlink
253 .long sys_mq_timedsend
254 .long sys_mq_timedreceive /* 230 */
255 .long sys_mq_notify
256 .long sys_mq_getsetattr
257 .long sys_kexec_load
258 .long sys_waitid
259 .long sys_add_key /* 235 */
260 .long sys_request_key
261 .long sys_keyctl
262 .long sys_ioprio_set
263 .long sys_ioprio_get
264 .long sys_inotify_init /* 240 */
265 .long sys_inotify_add_watch
266 .long sys_inotify_rm_watch
267 .long sys_openat
268 .long sys_mkdirat
269 .long sys_mknodat /* 245 */
270 .long sys_fchownat
271 .long sys_futimesat
272 .long sys_fstatat64
273 .long sys_unlinkat
274 .long sys_renameat /* 250 */
275 .long sys_linkat
276 .long sys_symlinkat
277 .long sys_readlinkat
278 .long sys_fchmodat
279 .long sys_faccessat /* 255 */
280 .long __sys_pselect6
281 .long sys_ppoll
282 .long sys_unshare
283 .long sys_set_robust_list
284 .long sys_get_robust_list /* 260 */
285 .long __sys_splice
286 .long sys_sync_file_range
287 .long sys_tee
288 .long sys_vmsplice
289 .long sys_ni_syscall /* r8 is saturated at nr_syscalls */
diff --git a/arch/avr32/kernel/time.c b/arch/avr32/kernel/time.c
new file mode 100644
index 000000000000..b0e6b5855a38
--- /dev/null
+++ b/arch/avr32/kernel/time.c
@@ -0,0 +1,238 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * Based on MIPS implementation arch/mips/kernel/time.c
5 * Copyright 2001 MontaVista Software Inc.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/clk.h>
13#include <linux/clocksource.h>
14#include <linux/time.h>
15#include <linux/module.h>
16#include <linux/interrupt.h>
17#include <linux/irq.h>
18#include <linux/kernel_stat.h>
19#include <linux/errno.h>
20#include <linux/init.h>
21#include <linux/profile.h>
22#include <linux/sysdev.h>
23
24#include <asm/div64.h>
25#include <asm/sysreg.h>
26#include <asm/io.h>
27#include <asm/sections.h>
28
29static cycle_t read_cycle_count(void)
30{
31 return (cycle_t)sysreg_read(COUNT);
32}
33
34static struct clocksource clocksource_avr32 = {
35 .name = "avr32",
36 .rating = 350,
37 .read = read_cycle_count,
38 .mask = CLOCKSOURCE_MASK(32),
39 .shift = 16,
40 .is_continuous = 1,
41};
42
43/*
44 * By default we provide the null RTC ops
45 */
46static unsigned long null_rtc_get_time(void)
47{
48 return mktime(2004, 1, 1, 0, 0, 0);
49}
50
51static int null_rtc_set_time(unsigned long sec)
52{
53 return 0;
54}
55
56static unsigned long (*rtc_get_time)(void) = null_rtc_get_time;
57static int (*rtc_set_time)(unsigned long) = null_rtc_set_time;
58
59/* how many counter cycles in a jiffy? */
60static unsigned long cycles_per_jiffy;
61
62/* cycle counter value at the previous timer interrupt */
63static unsigned int timerhi, timerlo;
64
65/* the count value for the next timer interrupt */
66static unsigned int expirelo;
67
68static void avr32_timer_ack(void)
69{
70 unsigned int count;
71
72 /* Ack this timer interrupt and set the next one */
73 expirelo += cycles_per_jiffy;
74 if (expirelo == 0) {
75 printk(KERN_DEBUG "expirelo == 0\n");
76 sysreg_write(COMPARE, expirelo + 1);
77 } else {
78 sysreg_write(COMPARE, expirelo);
79 }
80
81 /* Check to see if we have missed any timer interrupts */
82 count = sysreg_read(COUNT);
83 if ((count - expirelo) < 0x7fffffff) {
84 expirelo = count + cycles_per_jiffy;
85 sysreg_write(COMPARE, expirelo);
86 }
87}
88
89static unsigned int avr32_hpt_read(void)
90{
91 return sysreg_read(COUNT);
92}
93
94/*
95 * Taken from MIPS c0_hpt_timer_init().
96 *
97 * Why is it so complicated, and what is "count"? My assumption is
98 * that `count' specifies the "reference cycle", i.e. the cycle since
99 * reset that should mean "zero". The reason COUNT is written twice is
100 * probably to make sure we don't get any timer interrupts while we
101 * are messing with the counter.
102 */
103static void avr32_hpt_init(unsigned int count)
104{
105 count = sysreg_read(COUNT) - count;
106 expirelo = (count / cycles_per_jiffy + 1) * cycles_per_jiffy;
107 sysreg_write(COUNT, expirelo - cycles_per_jiffy);
108 sysreg_write(COMPARE, expirelo);
109 sysreg_write(COUNT, count);
110}
111
112/*
113 * Scheduler clock - returns current time in nanosec units.
114 */
115unsigned long long sched_clock(void)
116{
117 /* There must be better ways...? */
118 return (unsigned long long)jiffies * (1000000000 / HZ);
119}
120
121/*
122 * local_timer_interrupt() does profiling and process accounting on a
123 * per-CPU basis.
124 *
125 * In UP mode, it is invoked from the (global) timer_interrupt.
126 */
127static void local_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
128{
129 if (current->pid)
130 profile_tick(CPU_PROFILING, regs);
131 update_process_times(user_mode(regs));
132}
133
134static irqreturn_t
135timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
136{
137 unsigned int count;
138
139 /* ack timer interrupt and try to set next interrupt */
140 count = avr32_hpt_read();
141 avr32_timer_ack();
142
143 /* Update timerhi/timerlo for intra-jiffy calibration */
144 timerhi += count < timerlo; /* Wrap around */
145 timerlo = count;
146
147 /*
148 * Call the generic timer interrupt handler
149 */
150 write_seqlock(&xtime_lock);
151 do_timer(regs);
152 write_sequnlock(&xtime_lock);
153
154 /*
155 * In UP mode, we call local_timer_interrupt() to do profiling
156 * and process accounting.
157 *
158 * SMP is not supported yet.
159 */
160 local_timer_interrupt(irq, dev_id, regs);
161
162 return IRQ_HANDLED;
163}
164
165static struct irqaction timer_irqaction = {
166 .handler = timer_interrupt,
167 .flags = IRQF_DISABLED,
168 .name = "timer",
169};
170
171void __init time_init(void)
172{
173 unsigned long mult, shift, count_hz;
174 int ret;
175
176 xtime.tv_sec = rtc_get_time();
177 xtime.tv_nsec = 0;
178
179 set_normalized_timespec(&wall_to_monotonic,
180 -xtime.tv_sec, -xtime.tv_nsec);
181
182 printk("Before time_init: count=%08lx, compare=%08lx\n",
183 (unsigned long)sysreg_read(COUNT),
184 (unsigned long)sysreg_read(COMPARE));
185
186 count_hz = clk_get_rate(boot_cpu_data.clk);
187 shift = clocksource_avr32.shift;
188 mult = clocksource_hz2mult(count_hz, shift);
189 clocksource_avr32.mult = mult;
190
191 printk("Cycle counter: mult=%lu, shift=%lu\n", mult, shift);
192
193 {
194 u64 tmp;
195
196 tmp = TICK_NSEC;
197 tmp <<= shift;
198 tmp += mult / 2;
199 do_div(tmp, mult);
200
201 cycles_per_jiffy = tmp;
202 }
203
204 /* This sets up the high precision timer for the first interrupt. */
205 avr32_hpt_init(avr32_hpt_read());
206
207 printk("After time_init: count=%08lx, compare=%08lx\n",
208 (unsigned long)sysreg_read(COUNT),
209 (unsigned long)sysreg_read(COMPARE));
210
211 ret = clocksource_register(&clocksource_avr32);
212 if (ret)
213 printk(KERN_ERR
214 "timer: could not register clocksource: %d\n", ret);
215
216 ret = setup_irq(0, &timer_irqaction);
217 if (ret)
218 printk("timer: could not request IRQ 0: %d\n", ret);
219}
220
221static struct sysdev_class timer_class = {
222 set_kset_name("timer"),
223};
224
225static struct sys_device timer_device = {
226 .id = 0,
227 .cls = &timer_class,
228};
229
230static int __init init_timer_sysfs(void)
231{
232 int err = sysdev_class_register(&timer_class);
233 if (!err)
234 err = sysdev_register(&timer_device);
235 return err;
236}
237
238device_initcall(init_timer_sysfs);
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
new file mode 100644
index 000000000000..7e803f4d7a12
--- /dev/null
+++ b/arch/avr32/kernel/traps.c
@@ -0,0 +1,425 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#undef DEBUG
9#include <linux/sched.h>
10#include <linux/init.h>
11#include <linux/module.h>
12#include <linux/kallsyms.h>
13#include <linux/notifier.h>
14
15#include <asm/traps.h>
16#include <asm/sysreg.h>
17#include <asm/addrspace.h>
18#include <asm/ocd.h>
19#include <asm/mmu_context.h>
20#include <asm/uaccess.h>
21
22static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
23{
24 unsigned long p;
25 int i;
26
27 printk("%s(0x%08lx to 0x%08lx)\n", str, bottom, top);
28
29 for (p = bottom & ~31; p < top; ) {
30 printk("%04lx: ", p & 0xffff);
31
32 for (i = 0; i < 8; i++, p += 4) {
33 unsigned int val;
34
35 if (p < bottom || p >= top)
36 printk(" ");
37 else {
38 if (__get_user(val, (unsigned int __user *)p)) {
39 printk("\n");
40 goto out;
41 }
42 printk("%08x ", val);
43 }
44 }
45 printk("\n");
46 }
47
48out:
49 return;
50}
51
52#ifdef CONFIG_FRAME_POINTER
53static inline void __show_trace(struct task_struct *tsk, unsigned long *sp,
54 struct pt_regs *regs)
55{
56 unsigned long __user *fp;
57 unsigned long __user *last_fp = NULL;
58
59 if (regs) {
60 fp = (unsigned long __user *)regs->r7;
61 } else if (tsk == current) {
62 register unsigned long __user *real_fp __asm__("r7");
63 fp = real_fp;
64 } else {
65 fp = (unsigned long __user *)tsk->thread.cpu_context.r7;
66 }
67
68 /*
69 * Walk the stack until (a) we get an exception, (b) the frame
70 * pointer becomes zero, or (c) the frame pointer gets stuck
71 * at the same value.
72 */
73 while (fp && fp != last_fp) {
74 unsigned long lr, new_fp = 0;
75
76 last_fp = fp;
77 if (__get_user(lr, fp))
78 break;
79 if (fp && __get_user(new_fp, fp + 1))
80 break;
81 fp = (unsigned long __user *)new_fp;
82
83 printk(" [<%08lx>] ", lr);
84 print_symbol("%s\n", lr);
85 }
86 printk("\n");
87}
88#else
89static inline void __show_trace(struct task_struct *tsk, unsigned long *sp,
90 struct pt_regs *regs)
91{
92 unsigned long addr;
93
94 while (!kstack_end(sp)) {
95 addr = *sp++;
96 if (kernel_text_address(addr)) {
97 printk(" [<%08lx>] ", addr);
98 print_symbol("%s\n", addr);
99 }
100 }
101}
102#endif
103
104void show_trace(struct task_struct *tsk, unsigned long *sp,
105 struct pt_regs *regs)
106{
107 if (regs &&
108 (((regs->sr & MODE_MASK) == MODE_EXCEPTION) ||
109 ((regs->sr & MODE_MASK) == MODE_USER)))
110 return;
111
112 printk ("Call trace:");
113#ifdef CONFIG_KALLSYMS
114 printk("\n");
115#endif
116
117 __show_trace(tsk, sp, regs);
118 printk("\n");
119}
120
121void show_stack(struct task_struct *tsk, unsigned long *sp)
122{
123 unsigned long stack;
124
125 if (!tsk)
126 tsk = current;
127 if (sp == 0) {
128 if (tsk == current) {
129 register unsigned long *real_sp __asm__("sp");
130 sp = real_sp;
131 } else {
132 sp = (unsigned long *)tsk->thread.cpu_context.ksp;
133 }
134 }
135
136 stack = (unsigned long)sp;
137 dump_mem("Stack: ", stack,
138 THREAD_SIZE + (unsigned long)tsk->thread_info);
139 show_trace(tsk, sp, NULL);
140}
141
142void dump_stack(void)
143{
144 show_stack(NULL, NULL);
145}
146EXPORT_SYMBOL(dump_stack);
147
148ATOMIC_NOTIFIER_HEAD(avr32_die_chain);
149
150int register_die_notifier(struct notifier_block *nb)
151{
152 pr_debug("register_die_notifier: %p\n", nb);
153
154 return atomic_notifier_chain_register(&avr32_die_chain, nb);
155}
156EXPORT_SYMBOL(register_die_notifier);
157
158int unregister_die_notifier(struct notifier_block *nb)
159{
160 return atomic_notifier_chain_unregister(&avr32_die_chain, nb);
161}
162EXPORT_SYMBOL(unregister_die_notifier);
163
164static DEFINE_SPINLOCK(die_lock);
165
166void __die(const char *str, struct pt_regs *regs, unsigned long err,
167 const char *file, const char *func, unsigned long line)
168{
169 struct task_struct *tsk = current;
170 static int die_counter;
171
172 console_verbose();
173 spin_lock_irq(&die_lock);
174 bust_spinlocks(1);
175
176 printk(KERN_ALERT "%s", str);
177 if (file && func)
178 printk(" in %s:%s, line %ld", file, func, line);
179 printk("[#%d]:\n", ++die_counter);
180 print_modules();
181 show_regs(regs);
182 printk("Process %s (pid: %d, stack limit = 0x%p)\n",
183 tsk->comm, tsk->pid, tsk->thread_info + 1);
184
185 if (!user_mode(regs) || in_interrupt()) {
186 dump_mem("Stack: ", regs->sp,
187 THREAD_SIZE + (unsigned long)tsk->thread_info);
188 }
189
190 bust_spinlocks(0);
191 spin_unlock_irq(&die_lock);
192 do_exit(SIGSEGV);
193}
194
195void __die_if_kernel(const char *str, struct pt_regs *regs, unsigned long err,
196 const char *file, const char *func, unsigned long line)
197{
198 if (!user_mode(regs))
199 __die(str, regs, err, file, func, line);
200}
201
202asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs)
203{
204#ifdef CONFIG_SUBARCH_AVR32B
205 /*
206 * The exception entry always saves RSR_EX. For NMI, this is
207 * wrong; it should be RSR_NMI
208 */
209 regs->sr = sysreg_read(RSR_NMI);
210#endif
211
212 printk("NMI taken!!!!\n");
213 die("NMI", regs, ecr);
214 BUG();
215}
216
217asmlinkage void do_critical_exception(unsigned long ecr, struct pt_regs *regs)
218{
219 printk("Unable to handle critical exception %lu at pc = %08lx!\n",
220 ecr, regs->pc);
221 die("Oops", regs, ecr);
222 BUG();
223}
224
225asmlinkage void do_address_exception(unsigned long ecr, struct pt_regs *regs)
226{
227 siginfo_t info;
228
229 die_if_kernel("Oops: Address exception in kernel mode", regs, ecr);
230
231#ifdef DEBUG
232 if (ecr == ECR_ADDR_ALIGN_X)
233 pr_debug("Instruction Address Exception at pc = %08lx\n",
234 regs->pc);
235 else if (ecr == ECR_ADDR_ALIGN_R)
236 pr_debug("Data Address Exception (Read) at pc = %08lx\n",
237 regs->pc);
238 else if (ecr == ECR_ADDR_ALIGN_W)
239 pr_debug("Data Address Exception (Write) at pc = %08lx\n",
240 regs->pc);
241 else
242 BUG();
243
244 show_regs(regs);
245#endif
246
247 info.si_signo = SIGBUS;
248 info.si_errno = 0;
249 info.si_code = BUS_ADRALN;
250 info.si_addr = (void __user *)regs->pc;
251
252 force_sig_info(SIGBUS, &info, current);
253}
254
255/* This way of handling undefined instructions is stolen from ARM */
256static LIST_HEAD(undef_hook);
257static spinlock_t undef_lock = SPIN_LOCK_UNLOCKED;
258
259void register_undef_hook(struct undef_hook *hook)
260{
261 spin_lock_irq(&undef_lock);
262 list_add(&hook->node, &undef_hook);
263 spin_unlock_irq(&undef_lock);
264}
265
266void unregister_undef_hook(struct undef_hook *hook)
267{
268 spin_lock_irq(&undef_lock);
269 list_del(&hook->node);
270 spin_unlock_irq(&undef_lock);
271}
272
273static int do_cop_absent(u32 insn)
274{
275 int cop_nr;
276 u32 cpucr;
277 if ( (insn & 0xfdf00000) == 0xf1900000 )
278 /* LDC0 */
279 cop_nr = 0;
280 else
281 cop_nr = (insn >> 13) & 0x7;
282
283 /* Try enabling the coprocessor */
284 cpucr = sysreg_read(CPUCR);
285 cpucr |= (1 << (24 + cop_nr));
286 sysreg_write(CPUCR, cpucr);
287
288 cpucr = sysreg_read(CPUCR);
289 if ( !(cpucr & (1 << (24 + cop_nr))) ){
290 printk("Coprocessor #%i not found!\n", cop_nr);
291 return -1;
292 }
293
294 return 0;
295}
296
297#ifdef CONFIG_BUG
298#ifdef CONFIG_DEBUG_BUGVERBOSE
299static inline void do_bug_verbose(struct pt_regs *regs, u32 insn)
300{
301 char *file;
302 u16 line;
303 char c;
304
305 if (__get_user(line, (u16 __user *)(regs->pc + 2)))
306 return;
307 if (__get_user(file, (char * __user *)(regs->pc + 4))
308 || (unsigned long)file < PAGE_OFFSET
309 || __get_user(c, file))
310 file = "<bad filename>";
311
312 printk(KERN_ALERT "kernel BUG at %s:%d!\n", file, line);
313}
314#else
315static inline void do_bug_verbose(struct pt_regs *regs, u32 insn)
316{
317
318}
319#endif
320#endif
321
322asmlinkage void do_illegal_opcode(unsigned long ecr, struct pt_regs *regs)
323{
324 u32 insn;
325 struct undef_hook *hook;
326 siginfo_t info;
327 void __user *pc;
328
329 if (!user_mode(regs))
330 goto kernel_trap;
331
332 local_irq_enable();
333
334 pc = (void __user *)instruction_pointer(regs);
335 if (__get_user(insn, (u32 __user *)pc))
336 goto invalid_area;
337
338 if (ecr == ECR_COPROC_ABSENT) {
339 if (do_cop_absent(insn) == 0)
340 return;
341 }
342
343 spin_lock_irq(&undef_lock);
344 list_for_each_entry(hook, &undef_hook, node) {
345 if ((insn & hook->insn_mask) == hook->insn_val) {
346 if (hook->fn(regs, insn) == 0) {
347 spin_unlock_irq(&undef_lock);
348 return;
349 }
350 }
351 }
352 spin_unlock_irq(&undef_lock);
353
354invalid_area:
355
356#ifdef DEBUG
357 printk("Illegal instruction at pc = %08lx\n", regs->pc);
358 if (regs->pc < TASK_SIZE) {
359 unsigned long ptbr, pgd, pte, *p;
360
361 ptbr = sysreg_read(PTBR);
362 p = (unsigned long *)ptbr;
363 pgd = p[regs->pc >> 22];
364 p = (unsigned long *)((pgd & 0x1ffff000) | 0x80000000);
365 pte = p[(regs->pc >> 12) & 0x3ff];
366 printk("page table: 0x%08lx -> 0x%08lx -> 0x%08lx\n", ptbr, pgd, pte);
367 }
368#endif
369
370 info.si_signo = SIGILL;
371 info.si_errno = 0;
372 info.si_addr = (void __user *)regs->pc;
373 switch (ecr) {
374 case ECR_ILLEGAL_OPCODE:
375 case ECR_UNIMPL_INSTRUCTION:
376 info.si_code = ILL_ILLOPC;
377 break;
378 case ECR_PRIVILEGE_VIOLATION:
379 info.si_code = ILL_PRVOPC;
380 break;
381 case ECR_COPROC_ABSENT:
382 info.si_code = ILL_COPROC;
383 break;
384 default:
385 BUG();
386 }
387
388 force_sig_info(SIGILL, &info, current);
389 return;
390
391kernel_trap:
392#ifdef CONFIG_BUG
393 if (__kernel_text_address(instruction_pointer(regs))) {
394 insn = *(u16 *)instruction_pointer(regs);
395 if (insn == AVR32_BUG_OPCODE) {
396 do_bug_verbose(regs, insn);
397 die("Kernel BUG", regs, 0);
398 return;
399 }
400 }
401#endif
402
403 die("Oops: Illegal instruction in kernel code", regs, ecr);
404}
405
406asmlinkage void do_fpe(unsigned long ecr, struct pt_regs *regs)
407{
408 siginfo_t info;
409
410 printk("Floating-point exception at pc = %08lx\n", regs->pc);
411
412 /* We have no FPU... */
413 info.si_signo = SIGILL;
414 info.si_errno = 0;
415 info.si_addr = (void __user *)regs->pc;
416 info.si_code = ILL_COPROC;
417
418 force_sig_info(SIGILL, &info, current);
419}
420
421
422void __init trap_init(void)
423{
424
425}
diff --git a/arch/avr32/kernel/vmlinux.lds.c b/arch/avr32/kernel/vmlinux.lds.c
new file mode 100644
index 000000000000..cdd627c6b7dc
--- /dev/null
+++ b/arch/avr32/kernel/vmlinux.lds.c
@@ -0,0 +1,139 @@
1/*
2 * AVR32 linker script for the Linux kernel
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#define LOAD_OFFSET 0x00000000
11#include <asm-generic/vmlinux.lds.h>
12
13OUTPUT_FORMAT("elf32-avr32", "elf32-avr32", "elf32-avr32")
14OUTPUT_ARCH(avr32)
15ENTRY(_start)
16
17/* Big endian */
18jiffies = jiffies_64 + 4;
19
20SECTIONS
21{
22 . = CONFIG_ENTRY_ADDRESS;
23 .init : AT(ADDR(.init) - LOAD_OFFSET) {
24 _stext = .;
25 __init_begin = .;
26 _sinittext = .;
27 *(.text.reset)
28 *(.init.text)
29 _einittext = .;
30 . = ALIGN(4);
31 __tagtable_begin = .;
32 *(.taglist)
33 __tagtable_end = .;
34 *(.init.data)
35 . = ALIGN(16);
36 __setup_start = .;
37 *(.init.setup)
38 __setup_end = .;
39 . = ALIGN(4);
40 __initcall_start = .;
41 *(.initcall1.init)
42 *(.initcall2.init)
43 *(.initcall3.init)
44 *(.initcall4.init)
45 *(.initcall5.init)
46 *(.initcall6.init)
47 *(.initcall7.init)
48 __initcall_end = .;
49 __con_initcall_start = .;
50 *(.con_initcall.init)
51 __con_initcall_end = .;
52 __security_initcall_start = .;
53 *(.security_initcall.init)
54 __security_initcall_end = .;
55 . = ALIGN(32);
56 __initramfs_start = .;
57 *(.init.ramfs)
58 __initramfs_end = .;
59 . = ALIGN(4096);
60 __init_end = .;
61 }
62
63 . = ALIGN(8192);
64 .text : AT(ADDR(.text) - LOAD_OFFSET) {
65 _evba = .;
66 _text = .;
67 *(.ex.text)
68 . = 0x50;
69 *(.tlbx.ex.text)
70 . = 0x60;
71 *(.tlbr.ex.text)
72 . = 0x70;
73 *(.tlbw.ex.text)
74 . = 0x100;
75 *(.scall.text)
76 *(.irq.text)
77 *(.text)
78 SCHED_TEXT
79 LOCK_TEXT
80 KPROBES_TEXT
81 *(.fixup)
82 *(.gnu.warning)
83 _etext = .;
84 } = 0xd703d703
85
86 . = ALIGN(4);
87 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
88 __start___ex_table = .;
89 *(__ex_table)
90 __stop___ex_table = .;
91 }
92
93 RODATA
94
95 . = ALIGN(8192);
96
97 .data : AT(ADDR(.data) - LOAD_OFFSET) {
98 _data = .;
99 _sdata = .;
100 /*
101 * First, the init task union, aligned to an 8K boundary.
102 */
103 *(.data.init_task)
104
105 /* Then, the cacheline aligned data */
106 . = ALIGN(32);
107 *(.data.cacheline_aligned)
108
109 /* And the rest... */
110 *(.data.rel*)
111 *(.data)
112 CONSTRUCTORS
113
114 _edata = .;
115 }
116
117
118 . = ALIGN(8);
119 .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
120 __bss_start = .;
121 *(.bss)
122 *(COMMON)
123 . = ALIGN(8);
124 __bss_stop = .;
125 _end = .;
126 }
127
128 /* When something in the kernel is NOT compiled as a module, the module
129 * cleanup code and data are put into these segments. Both can then be
130 * thrown away, as cleanup code is never called unless it's a module.
131 */
132 /DISCARD/ : {
133 *(.exit.text)
134 *(.exit.data)
135 *(.exitcall.exit)
136 }
137
138 DWARF_DEBUG
139}
diff --git a/arch/avr32/lib/Makefile b/arch/avr32/lib/Makefile
new file mode 100644
index 000000000000..09ac43e40522
--- /dev/null
+++ b/arch/avr32/lib/Makefile
@@ -0,0 +1,10 @@
1#
2# Makefile for AVR32-specific library files
3#
4
5lib-y := copy_user.o clear_user.o
6lib-y += strncpy_from_user.o strnlen_user.o
7lib-y += delay.o memset.o memcpy.o findbit.o
8lib-y += csum_partial.o csum_partial_copy_generic.o
9lib-y += io-readsw.o io-readsl.o io-writesw.o io-writesl.o
10lib-y += __avr32_lsl64.o __avr32_lsr64.o __avr32_asr64.o
diff --git a/arch/avr32/lib/__avr32_asr64.S b/arch/avr32/lib/__avr32_asr64.S
new file mode 100644
index 000000000000..368b6bca4c76
--- /dev/null
+++ b/arch/avr32/lib/__avr32_asr64.S
@@ -0,0 +1,31 @@
1/*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 /*
10 * DWtype __avr32_asr64(DWtype u, word_type b)
11 */
12 .text
13 .global __avr32_asr64
14 .type __avr32_asr64,@function
15__avr32_asr64:
16 cp.w r12, 0
17 reteq r12
18
19 rsub r9, r12, 32
20 brle 1f
21
22 lsl r8, r11, r9
23 lsr r10, r10, r12
24 asr r11, r11, r12
25 or r10, r8
26 retal r12
27
281: neg r9
29 asr r10, r11, r9
30 asr r11, 31
31 retal r12
diff --git a/arch/avr32/lib/__avr32_lsl64.S b/arch/avr32/lib/__avr32_lsl64.S
new file mode 100644
index 000000000000..f1dbc2b36257
--- /dev/null
+++ b/arch/avr32/lib/__avr32_lsl64.S
@@ -0,0 +1,31 @@
1/*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 /*
10 * DWtype __avr32_lsl64(DWtype u, word_type b)
11 */
12 .text
13 .global __avr32_lsl64
14 .type __avr32_lsl64,@function
15__avr32_lsl64:
16 cp.w r12, 0
17 reteq r12
18
19 rsub r9, r12, 32
20 brle 1f
21
22 lsr r8, r10, r9
23 lsl r10, r10, r12
24 lsl r11, r11, r12
25 or r11, r8
26 retal r12
27
281: neg r9
29 lsl r11, r10, r9
30 mov r10, 0
31 retal r12
diff --git a/arch/avr32/lib/__avr32_lsr64.S b/arch/avr32/lib/__avr32_lsr64.S
new file mode 100644
index 000000000000..e65bb7f0d24c
--- /dev/null
+++ b/arch/avr32/lib/__avr32_lsr64.S
@@ -0,0 +1,31 @@
1/*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 /*
10 * DWtype __avr32_lsr64(DWtype u, word_type b)
11 */
12 .text
13 .global __avr32_lsr64
14 .type __avr32_lsr64,@function
15__avr32_lsr64:
16 cp.w r12, 0
17 reteq r12
18
19 rsub r9, r12, 32
20 brle 1f
21
22 lsl r8, r11, r9
23 lsr r11, r11, r12
24 lsr r10, r10, r12
25 or r10, r8
26 retal r12
27
281: neg r9
29 lsr r10, r11, r9
30 mov r11, 0
31 retal r12
diff --git a/arch/avr32/lib/clear_user.S b/arch/avr32/lib/clear_user.S
new file mode 100644
index 000000000000..d8991b6f8eb7
--- /dev/null
+++ b/arch/avr32/lib/clear_user.S
@@ -0,0 +1,76 @@
1/*
2 * Copyright 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <asm/page.h>
9#include <asm/thread_info.h>
10#include <asm/asm.h>
11
12 .text
13 .align 1
14 .global clear_user
15 .type clear_user, "function"
16clear_user:
17 branch_if_kernel r8, __clear_user
18 ret_if_privileged r8, r12, r11, r11
19
20 .global __clear_user
21 .type __clear_user, "function"
22__clear_user:
23 mov r9, r12
24 mov r8, 0
25 andl r9, 3, COH
26 brne 5f
27
281: sub r11, 4
29 brlt 2f
30
3110: st.w r12++, r8
32 sub r11, 4
33 brge 10b
34
352: sub r11, -4
36 reteq 0
37
38 /* Unaligned count or address */
39 bld r11, 1
40 brcc 12f
4111: st.h r12++, r8
42 sub r11, 2
43 reteq 0
4412: st.b r12++, r8
45 retal 0
46
47 /* Unaligned address */
485: cp.w r11, 4
49 brlt 2b
50
51 lsl r9, 2
52 add pc, pc, r9
5313: st.b r12++, r8
54 sub r11, 1
5514: st.b r12++, r8
56 sub r11, 1
5715: st.b r12++, r8
58 sub r11, 1
59 rjmp 1b
60
61 .size clear_user, . - clear_user
62 .size __clear_user, . - __clear_user
63
64 .section .fixup, "ax"
65 .align 1
6618: sub r11, -4
6719: retal r11
68
69 .section __ex_table, "a"
70 .align 2
71 .long 10b, 18b
72 .long 11b, 19b
73 .long 12b, 19b
74 .long 13b, 19b
75 .long 14b, 19b
76 .long 15b, 19b
diff --git a/arch/avr32/lib/copy_user.S b/arch/avr32/lib/copy_user.S
new file mode 100644
index 000000000000..ea59c04b07de
--- /dev/null
+++ b/arch/avr32/lib/copy_user.S
@@ -0,0 +1,119 @@
1/*
2 * Copy to/from userspace with optional address space checking.
3 *
4 * Copyright 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <asm/page.h>
11#include <asm/thread_info.h>
12#include <asm/asm.h>
13
14 /*
15 * __kernel_size_t
16 * __copy_user(void *to, const void *from, __kernel_size_t n)
17 *
18 * Returns the number of bytes not copied. Might be off by
19 * max 3 bytes if we get a fault in the main loop.
20 *
21 * The address-space checking functions simply fall through to
22 * the non-checking version.
23 */
24 .text
25 .align 1
26 .global copy_from_user
27 .type copy_from_user, @function
28copy_from_user:
29 branch_if_kernel r8, __copy_user
30 ret_if_privileged r8, r11, r10, r10
31 rjmp __copy_user
32 .size copy_from_user, . - copy_from_user
33
34 .global copy_to_user
35 .type copy_to_user, @function
36copy_to_user:
37 branch_if_kernel r8, __copy_user
38 ret_if_privileged r8, r12, r10, r10
39 .size copy_to_user, . - copy_to_user
40
41 .global __copy_user
42 .type __copy_user, @function
43__copy_user:
44 mov r9, r11
45 andl r9, 3, COH
46 brne 6f
47
48 /* At this point, from is word-aligned */
491: sub r10, 4
50 brlt 3f
51
522:
5310: ld.w r8, r11++
5411: st.w r12++, r8
55 sub r10, 4
56 brge 2b
57
583: sub r10, -4
59 reteq 0
60
61 /*
62 * Handle unaligned count. Need to be careful with r10 here so
63 * that we return the correct value even if we get a fault
64 */
654:
6620: ld.ub r8, r11++
6721: st.b r12++, r8
68 sub r10, 1
69 reteq 0
7022: ld.ub r8, r11++
7123: st.b r12++, r8
72 sub r10, 1
73 reteq 0
7424: ld.ub r8, r11++
7525: st.b r12++, r8
76 retal 0
77
78 /* Handle unaligned from-pointer */
796: cp.w r10, 4
80 brlt 4b
81 rsub r9, r9, 4
82
8330: ld.ub r8, r11++
8431: st.b r12++, r8
85 sub r10, 1
86 sub r9, 1
87 breq 1b
8832: ld.ub r8, r11++
8933: st.b r12++, r8
90 sub r10, 1
91 sub r9, 1
92 breq 1b
9334: ld.ub r8, r11++
9435: st.b r12++, r8
95 sub r10, 1
96 rjmp 1b
97 .size __copy_user, . - __copy_user
98
99 .section .fixup,"ax"
100 .align 1
10119: sub r10, -4
10229: retal r10
103
104 .section __ex_table,"a"
105 .align 2
106 .long 10b, 19b
107 .long 11b, 19b
108 .long 20b, 29b
109 .long 21b, 29b
110 .long 22b, 29b
111 .long 23b, 29b
112 .long 24b, 29b
113 .long 25b, 29b
114 .long 30b, 29b
115 .long 31b, 29b
116 .long 32b, 29b
117 .long 33b, 29b
118 .long 34b, 29b
119 .long 35b, 29b
diff --git a/arch/avr32/lib/csum_partial.S b/arch/avr32/lib/csum_partial.S
new file mode 100644
index 000000000000..6a262b528eb7
--- /dev/null
+++ b/arch/avr32/lib/csum_partial.S
@@ -0,0 +1,47 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 /*
10 * unsigned int csum_partial(const unsigned char *buff,
11 * int len, unsigned int sum)
12 */
13 .text
14 .global csum_partial
15 .type csum_partial,"function"
16 .align 1
17csum_partial:
18 /* checksum complete words, aligned or not */
193: sub r11, 4
20 brlt 5f
214: ld.w r9, r12++
22 add r10, r9
23 acr r10
24 sub r11, 4
25 brge 4b
26
27 /* return if we had a whole number of words */
285: sub r11, -4
29 reteq r10
30
31 /* checksum any remaining bytes at the end */
32 mov r9, 0
33 mov r8, 0
34 cp r11, 2
35 brlt 6f
36 ld.uh r9, r12++
37 sub r11, 2
38 breq 7f
39 lsl r9, 16
406: ld.ub r8, r12++
41 lsl r8, 8
427: or r9, r8
43 add r10, r9
44 acr r10
45
46 retal r10
47 .size csum_partial, . - csum_partial
diff --git a/arch/avr32/lib/csum_partial_copy_generic.S b/arch/avr32/lib/csum_partial_copy_generic.S
new file mode 100644
index 000000000000..a3a0f9b8929c
--- /dev/null
+++ b/arch/avr32/lib/csum_partial_copy_generic.S
@@ -0,0 +1,99 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <asm/errno.h>
9#include <asm/asm.h>
10
11 /*
12 * unsigned int csum_partial_copy_generic(const char *src, char *dst, int len
13 * int sum, int *src_err_ptr,
14 * int *dst_err_ptr)
15 *
16 * Copy src to dst while checksumming, otherwise like csum_partial.
17 */
18
19 .macro ld_src size, reg, ptr
209999: ld.\size \reg, \ptr
21 .section __ex_table, "a"
22 .long 9999b, fixup_ld_src
23 .previous
24 .endm
25
26 .macro st_dst size, ptr, reg
279999: st.\size \ptr, \reg
28 .section __ex_table, "a"
29 .long 9999b, fixup_st_dst
30 .previous
31 .endm
32
33 .text
34 .global csum_partial_copy_generic
35 .type csum_partial_copy_generic,"function"
36 .align 1
37csum_partial_copy_generic:
38 pushm r4-r7,lr
39
40 /* The inner loop */
411: sub r10, 4
42 brlt 5f
432: ld_src w, r5, r12++
44 st_dst w, r11++, r5
45 add r9, r5
46 acr r9
47 sub r10, 4
48 brge 2b
49
50 /* return if we had a whole number of words */
515: sub r10, -4
52 brne 7f
53
546: mov r12, r9
55 popm r4-r7,pc
56
57 /* handle additional bytes at the tail */
587: mov r5, 0
59 mov r4, 32
608: ld_src ub, r6, r12++
61 st_dst b, r11++, r6
62 lsl r5, 8
63 sub r4, 8
64 bfins r5, r6, 0, 8
65 sub r10, 1
66 brne 8b
67
68 lsl r5, r5, r4
69 add r9, r5
70 acr r9
71 rjmp 6b
72
73 /* Exception handler */
74 .section .fixup,"ax"
75 .align 1
76fixup_ld_src:
77 mov r9, -EFAULT
78 cp.w r8, 0
79 breq 1f
80 st.w r8[0], r9
81
821: /*
83 * TODO: zero the complete destination - computing the rest
84 * is too much work
85 */
86
87 mov r9, 0
88 rjmp 6b
89
90fixup_st_dst:
91 mov r9, -EFAULT
92 lddsp r8, sp[20]
93 cp.w r8, 0
94 breq 1f
95 st.w r8[0], r9
961: mov r9, 0
97 rjmp 6b
98
99 .previous
diff --git a/arch/avr32/lib/delay.c b/arch/avr32/lib/delay.c
new file mode 100644
index 000000000000..462c8307b680
--- /dev/null
+++ b/arch/avr32/lib/delay.c
@@ -0,0 +1,55 @@
1/*
2 * Precise Delay Loops for avr32
3 *
4 * Copyright (C) 1993 Linus Torvalds
5 * Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
6 * Copyright (C) 2005-2006 Atmel Corporation
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 version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/delay.h>
14#include <linux/module.h>
15#include <linux/types.h>
16
17#include <asm/delay.h>
18#include <asm/processor.h>
19#include <asm/sysreg.h>
20
21int read_current_timer(unsigned long *timer_value)
22{
23 *timer_value = sysreg_read(COUNT);
24 return 0;
25}
26
27void __delay(unsigned long loops)
28{
29 unsigned bclock, now;
30
31 bclock = sysreg_read(COUNT);
32 do {
33 now = sysreg_read(COUNT);
34 } while ((now - bclock) < loops);
35}
36
37inline void __const_udelay(unsigned long xloops)
38{
39 unsigned long long loops;
40
41 asm("mulu.d %0, %1, %2"
42 : "=r"(loops)
43 : "r"(current_cpu_data.loops_per_jiffy * HZ), "r"(xloops));
44 __delay(loops >> 32);
45}
46
47void __udelay(unsigned long usecs)
48{
49 __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
50}
51
52void __ndelay(unsigned long nsecs)
53{
54 __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
55}
diff --git a/arch/avr32/lib/findbit.S b/arch/avr32/lib/findbit.S
new file mode 100644
index 000000000000..2b4856f4bf7c
--- /dev/null
+++ b/arch/avr32/lib/findbit.S
@@ -0,0 +1,154 @@
1/*
2 * Copyright (C) 2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/linkage.h>
9
10 .text
11 /*
12 * unsigned long find_first_zero_bit(const unsigned long *addr,
13 * unsigned long size)
14 */
15ENTRY(find_first_zero_bit)
16 cp.w r11, 0
17 reteq r11
18 mov r9, r11
191: ld.w r8, r12[0]
20 com r8
21 brne .L_found
22 sub r12, -4
23 sub r9, 32
24 brgt 1b
25 retal r11
26
27 /*
28 * unsigned long find_next_zero_bit(const unsigned long *addr,
29 * unsigned long size,
30 * unsigned long offset)
31 */
32ENTRY(find_next_zero_bit)
33 lsr r8, r10, 5
34 sub r9, r11, r10
35 retle r11
36
37 lsl r8, 2
38 add r12, r8
39 andl r10, 31, COH
40 breq 1f
41
42 /* offset is not word-aligned. Handle the first (32 - r10) bits */
43 ld.w r8, r12[0]
44 com r8
45 sub r12, -4
46 lsr r8, r8, r10
47 brne .L_found
48
49 /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */
50 add r9, r10
51 sub r9, 32
52 retle r11
53
54 /* Main loop. offset must be word-aligned */
551: ld.w r8, r12[0]
56 com r8
57 brne .L_found
58 sub r12, -4
59 sub r9, 32
60 brgt 1b
61 retal r11
62
63 /* Common return path for when a bit is actually found. */
64.L_found:
65 brev r8
66 clz r10, r8
67 rsub r9, r11
68 add r10, r9
69
70 /* XXX: If we don't have to return exactly "size" when the bit
71 is not found, we may drop this "min" thing */
72 min r12, r11, r10
73 retal r12
74
75 /*
76 * unsigned long find_first_bit(const unsigned long *addr,
77 * unsigned long size)
78 */
79ENTRY(find_first_bit)
80 cp.w r11, 0
81 reteq r11
82 mov r9, r11
831: ld.w r8, r12[0]
84 cp.w r8, 0
85 brne .L_found
86 sub r12, -4
87 sub r9, 32
88 brgt 1b
89 retal r11
90
91 /*
92 * unsigned long find_next_bit(const unsigned long *addr,
93 * unsigned long size,
94 * unsigned long offset)
95 */
96ENTRY(find_next_bit)
97 lsr r8, r10, 5
98 sub r9, r11, r10
99 retle r11
100
101 lsl r8, 2
102 add r12, r8
103 andl r10, 31, COH
104 breq 1f
105
106 /* offset is not word-aligned. Handle the first (32 - r10) bits */
107 ld.w r8, r12[0]
108 sub r12, -4
109 lsr r8, r8, r10
110 brne .L_found
111
112 /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */
113 add r9, r10
114 sub r9, 32
115 retle r11
116
117 /* Main loop. offset must be word-aligned */
1181: ld.w r8, r12[0]
119 cp.w r8, 0
120 brne .L_found
121 sub r12, -4
122 sub r9, 32
123 brgt 1b
124 retal r11
125
126ENTRY(generic_find_next_zero_le_bit)
127 lsr r8, r10, 5
128 sub r9, r11, r10
129 retle r11
130
131 lsl r8, 2
132 add r12, r8
133 andl r10, 31, COH
134 breq 1f
135
136 /* offset is not word-aligned. Handle the first (32 - r10) bits */
137 ldswp.w r8, r12[0]
138 sub r12, -4
139 lsr r8, r8, r10
140 brne .L_found
141
142 /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */
143 add r9, r10
144 sub r9, 32
145 retle r11
146
147 /* Main loop. offset must be word-aligned */
1481: ldswp.w r8, r12[0]
149 cp.w r8, 0
150 brne .L_found
151 sub r12, -4
152 sub r9, 32
153 brgt 1b
154 retal r11
diff --git a/arch/avr32/lib/io-readsl.S b/arch/avr32/lib/io-readsl.S
new file mode 100644
index 000000000000..b103511ed6c4
--- /dev/null
+++ b/arch/avr32/lib/io-readsl.S
@@ -0,0 +1,24 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 .global __raw_readsl
10 .type __raw_readsl,@function
11__raw_readsl:
12 cp.w r10, 0
13 reteq r12
14
15 /*
16 * If r11 isn't properly aligned, we might get an exception on
17 * some implementations. But there's not much we can do about it.
18 */
191: ld.w r8, r12[0]
20 sub r10, 1
21 st.w r11++, r8
22 brne 1b
23
24 retal r12
diff --git a/arch/avr32/lib/io-readsw.S b/arch/avr32/lib/io-readsw.S
new file mode 100644
index 000000000000..456be9909027
--- /dev/null
+++ b/arch/avr32/lib/io-readsw.S
@@ -0,0 +1,43 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9.Lnot_word_aligned:
10 /*
11 * Bad alignment will cause a hardware exception, which is as
12 * good as anything. No need for us to check for proper alignment.
13 */
14 ld.uh r8, r12[0]
15 sub r10, 1
16 st.h r11++, r8
17
18 /* fall through */
19
20 .global __raw_readsw
21 .type __raw_readsw,@function
22__raw_readsw:
23 cp.w r10, 0
24 reteq r12
25 mov r9, 3
26 tst r11, r9
27 brne .Lnot_word_aligned
28
29 sub r10, 2
30 brlt 2f
31
321: ldins.h r8:t, r12[0]
33 ldins.h r8:b, r12[0]
34 st.w r11++, r8
35 sub r10, 2
36 brge 1b
37
382: sub r10, -2
39 reteq r12
40
41 ld.uh r8, r12[0]
42 st.h r11++, r8
43 retal r12
diff --git a/arch/avr32/lib/io-writesl.S b/arch/avr32/lib/io-writesl.S
new file mode 100644
index 000000000000..22138b3a16e5
--- /dev/null
+++ b/arch/avr32/lib/io-writesl.S
@@ -0,0 +1,20 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 .global __raw_writesl
10 .type __raw_writesl,@function
11__raw_writesl:
12 cp.w r10, 0
13 reteq r12
14
151: ld.w r8, r11++
16 sub r10, 1
17 st.w r12[0], r8
18 brne 1b
19
20 retal r12
diff --git a/arch/avr32/lib/io-writesw.S b/arch/avr32/lib/io-writesw.S
new file mode 100644
index 000000000000..8c4a53f1c52a
--- /dev/null
+++ b/arch/avr32/lib/io-writesw.S
@@ -0,0 +1,38 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9.Lnot_word_aligned:
10 ld.uh r8, r11++
11 sub r10, 1
12 st.h r12[0], r8
13
14 .global __raw_writesw
15 .type __raw_writesw,@function
16__raw_writesw:
17 cp.w r10, 0
18 mov r9, 3
19 reteq r12
20 tst r11, r9
21 brne .Lnot_word_aligned
22
23 sub r10, 2
24 brlt 2f
25
261: ld.w r8, r11++
27 bfextu r9, r8, 16, 16
28 st.h r12[0], r9
29 st.h r12[0], r8
30 sub r10, 2
31 brge 1b
32
332: sub r10, -2
34 reteq r12
35
36 ld.uh r8, r11++
37 st.h r12[0], r8
38 retal r12
diff --git a/arch/avr32/lib/libgcc.h b/arch/avr32/lib/libgcc.h
new file mode 100644
index 000000000000..5a091b5e3618
--- /dev/null
+++ b/arch/avr32/lib/libgcc.h
@@ -0,0 +1,33 @@
1/* Definitions for various functions 'borrowed' from gcc-3.4.3 */
2
3#define BITS_PER_UNIT 8
4
5typedef int QItype __attribute__ ((mode (QI)));
6typedef unsigned int UQItype __attribute__ ((mode (QI)));
7typedef int HItype __attribute__ ((mode (HI)));
8typedef unsigned int UHItype __attribute__ ((mode (HI)));
9typedef int SItype __attribute__ ((mode (SI)));
10typedef unsigned int USItype __attribute__ ((mode (SI)));
11typedef int DItype __attribute__ ((mode (DI)));
12typedef unsigned int UDItype __attribute__ ((mode (DI)));
13typedef float SFtype __attribute__ ((mode (SF)));
14typedef float DFtype __attribute__ ((mode (DF)));
15typedef int word_type __attribute__ ((mode (__word__)));
16
17#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
18#define Wtype SItype
19#define UWtype USItype
20#define HWtype SItype
21#define UHWtype USItype
22#define DWtype DItype
23#define UDWtype UDItype
24#define __NW(a,b) __ ## a ## si ## b
25#define __NDW(a,b) __ ## a ## di ## b
26
27struct DWstruct {Wtype high, low;};
28
29typedef union
30{
31 struct DWstruct s;
32 DWtype ll;
33} DWunion;
diff --git a/arch/avr32/lib/longlong.h b/arch/avr32/lib/longlong.h
new file mode 100644
index 000000000000..cd5e369ac437
--- /dev/null
+++ b/arch/avr32/lib/longlong.h
@@ -0,0 +1,98 @@
1/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
2 Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
3 Free Software Foundation, Inc.
4
5 This definition file is free software; you can redistribute it
6 and/or modify it under the terms of the GNU General Public
7 License as published by the Free Software Foundation; either
8 version 2, or (at your option) any later version.
9
10 This definition file is distributed in the hope that it will be
11 useful, but WITHOUT ANY WARRANTY; without even the implied
12 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
19
20/* Borrowed from gcc-3.4.3 */
21
22#define __BITS4 (W_TYPE_SIZE / 4)
23#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
24#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
25#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
26
27#define count_leading_zeros(count, x) ((count) = __builtin_clz(x))
28
29#define __udiv_qrnnd_c(q, r, n1, n0, d) \
30 do { \
31 UWtype __d1, __d0, __q1, __q0; \
32 UWtype __r1, __r0, __m; \
33 __d1 = __ll_highpart (d); \
34 __d0 = __ll_lowpart (d); \
35 \
36 __r1 = (n1) % __d1; \
37 __q1 = (n1) / __d1; \
38 __m = (UWtype) __q1 * __d0; \
39 __r1 = __r1 * __ll_B | __ll_highpart (n0); \
40 if (__r1 < __m) \
41 { \
42 __q1--, __r1 += (d); \
43 if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
44 if (__r1 < __m) \
45 __q1--, __r1 += (d); \
46 } \
47 __r1 -= __m; \
48 \
49 __r0 = __r1 % __d1; \
50 __q0 = __r1 / __d1; \
51 __m = (UWtype) __q0 * __d0; \
52 __r0 = __r0 * __ll_B | __ll_lowpart (n0); \
53 if (__r0 < __m) \
54 { \
55 __q0--, __r0 += (d); \
56 if (__r0 >= (d)) \
57 if (__r0 < __m) \
58 __q0--, __r0 += (d); \
59 } \
60 __r0 -= __m; \
61 \
62 (q) = (UWtype) __q1 * __ll_B | __q0; \
63 (r) = __r0; \
64 } while (0)
65
66#define udiv_qrnnd __udiv_qrnnd_c
67
68#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
69 do { \
70 UWtype __x; \
71 __x = (al) - (bl); \
72 (sh) = (ah) - (bh) - (__x > (al)); \
73 (sl) = __x; \
74 } while (0)
75
76#define umul_ppmm(w1, w0, u, v) \
77 do { \
78 UWtype __x0, __x1, __x2, __x3; \
79 UHWtype __ul, __vl, __uh, __vh; \
80 \
81 __ul = __ll_lowpart (u); \
82 __uh = __ll_highpart (u); \
83 __vl = __ll_lowpart (v); \
84 __vh = __ll_highpart (v); \
85 \
86 __x0 = (UWtype) __ul * __vl; \
87 __x1 = (UWtype) __ul * __vh; \
88 __x2 = (UWtype) __uh * __vl; \
89 __x3 = (UWtype) __uh * __vh; \
90 \
91 __x1 += __ll_highpart (__x0);/* this can't give carry */ \
92 __x1 += __x2; /* but this indeed can */ \
93 if (__x1 < __x2) /* did we get it? */ \
94 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
95 \
96 (w1) = __x3 + __ll_highpart (__x1); \
97 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
98 } while (0)
diff --git a/arch/avr32/lib/memcpy.S b/arch/avr32/lib/memcpy.S
new file mode 100644
index 000000000000..0abb26142b64
--- /dev/null
+++ b/arch/avr32/lib/memcpy.S
@@ -0,0 +1,62 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 /*
10 * void *memcpy(void *to, const void *from, unsigned long n)
11 *
12 * This implementation does word-aligned loads in the main loop,
13 * possibly sacrificing alignment of stores.
14 *
15 * Hopefully, in most cases, both "to" and "from" will be
16 * word-aligned to begin with.
17 */
18 .text
19 .global memcpy
20 .type memcpy, @function
21memcpy:
22 mov r9, r11
23 andl r9, 3, COH
24 brne 1f
25
26 /* At this point, "from" is word-aligned */
272: sub r10, 4
28 mov r9, r12
29 brlt 4f
30
313: ld.w r8, r11++
32 sub r10, 4
33 st.w r12++, r8
34 brge 3b
35
364: neg r10
37 reteq r9
38
39 /* Handle unaligned count */
40 lsl r10, 2
41 add pc, pc, r10
42 ld.ub r8, r11++
43 st.b r12++, r8
44 ld.ub r8, r11++
45 st.b r12++, r8
46 ld.ub r8, r11++
47 st.b r12++, r8
48 retal r9
49
50 /* Handle unaligned "from" pointer */
511: sub r10, 4
52 brlt 4b
53 add r10, r9
54 lsl r9, 2
55 add pc, pc, r9
56 ld.ub r8, r11++
57 st.b r12++, r8
58 ld.ub r8, r11++
59 st.b r12++, r8
60 ld.ub r8, r11++
61 st.b r12++, r8
62 rjmp 2b
diff --git a/arch/avr32/lib/memset.S b/arch/avr32/lib/memset.S
new file mode 100644
index 000000000000..40da32c0480c
--- /dev/null
+++ b/arch/avr32/lib/memset.S
@@ -0,0 +1,72 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * Based on linux/arch/arm/lib/memset.S
5 * Copyright (C) 1995-2000 Russell King
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 * ASM optimised string functions
12 */
13#include <asm/asm.h>
14
15 /*
16 * r12: void *b
17 * r11: int c
18 * r10: size_t len
19 *
20 * Returns b in r12
21 */
22 .text
23 .global memset
24 .type memset, @function
25 .align 5
26memset:
27 mov r9, r12
28 mov r8, r12
29 or r11, r11, r11 << 8
30 andl r9, 3, COH
31 brne 1f
32
332: or r11, r11, r11 << 16
34 sub r10, 4
35 brlt 5f
36
37 /* Let's do some real work */
384: st.w r8++, r11
39 sub r10, 4
40 brge 4b
41
42 /*
43 * When we get here, we've got less than 4 bytes to set. r10
44 * might be negative.
45 */
465: sub r10, -4
47 reteq r12
48
49 /* Fastpath ends here, exactly 32 bytes from memset */
50
51 /* Handle unaligned count or pointer */
52 bld r10, 1
53 brcc 6f
54 st.b r8++, r11
55 st.b r8++, r11
56 bld r10, 0
57 retcc r12
586: st.b r8++, r11
59 retal r12
60
61 /* Handle unaligned pointer */
621: sub r10, 4
63 brlt 5b
64 add r10, r9
65 lsl r9, 1
66 add pc, r9
67 st.b r8++, r11
68 st.b r8++, r11
69 st.b r8++, r11
70 rjmp 2b
71
72 .size memset, . - memset
diff --git a/arch/avr32/lib/strncpy_from_user.S b/arch/avr32/lib/strncpy_from_user.S
new file mode 100644
index 000000000000..72bd50599ec6
--- /dev/null
+++ b/arch/avr32/lib/strncpy_from_user.S
@@ -0,0 +1,60 @@
1/*
2 * Copy to/from userspace with optional address space checking.
3 *
4 * Copyright 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/errno.h>
11
12#include <asm/page.h>
13#include <asm/thread_info.h>
14#include <asm/asm.h>
15
16 /*
17 * long strncpy_from_user(char *dst, const char *src, long count)
18 *
19 * On success, returns the length of the string, not including
20 * the terminating NUL.
21 *
22 * If the string is longer than count, returns count
23 *
24 * If userspace access fails, returns -EFAULT
25 */
26 .text
27 .align 1
28 .global strncpy_from_user
29 .type strncpy_from_user, "function"
30strncpy_from_user:
31 mov r9, -EFAULT
32 branch_if_kernel r8, __strncpy_from_user
33 ret_if_privileged r8, r11, r10, r9
34
35 .global __strncpy_from_user
36 .type __strncpy_from_user, "function"
37__strncpy_from_user:
38 cp.w r10, 0
39 reteq 0
40
41 mov r9, r10
42
431: ld.ub r8, r11++
44 st.b r12++, r8
45 cp.w r8, 0
46 breq 2f
47 sub r9, 1
48 brne 1b
49
502: sub r10, r9
51 retal r10
52
53 .section .fixup, "ax"
54 .align 1
553: mov r12, -EFAULT
56 retal r12
57
58 .section __ex_table, "a"
59 .align 2
60 .long 1b, 3b
diff --git a/arch/avr32/lib/strnlen_user.S b/arch/avr32/lib/strnlen_user.S
new file mode 100644
index 000000000000..65ce11afa66a
--- /dev/null
+++ b/arch/avr32/lib/strnlen_user.S
@@ -0,0 +1,67 @@
1/*
2 * Copy to/from userspace with optional address space checking.
3 *
4 * Copyright 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <asm/page.h>
11#include <asm/thread_info.h>
12#include <asm/processor.h>
13#include <asm/asm.h>
14
15 .text
16 .align 1
17 .global strnlen_user
18 .type strnlen_user, "function"
19strnlen_user:
20 branch_if_kernel r8, __strnlen_user
21 sub r8, r11, 1
22 add r8, r12
23 retcs 0
24 brmi adjust_length /* do a closer inspection */
25
26 .global __strnlen_user
27 .type __strnlen_user, "function"
28__strnlen_user:
29 mov r10, r12
30
3110: ld.ub r8, r12++
32 cp.w r8, 0
33 breq 2f
34 sub r11, 1
35 brne 10b
36
37 sub r12, -1
382: sub r12, r10
39 retal r12
40
41
42 .type adjust_length, "function"
43adjust_length:
44 cp.w r12, 0 /* addr must always be < TASK_SIZE */
45 retmi 0
46
47 pushm lr
48 lddpc lr, _task_size
49 sub r11, lr, r12
50 mov r9, r11
51 rcall __strnlen_user
52 cp.w r12, r9
53 brgt 1f
54 popm pc
551: popm pc, r12=0
56
57 .align 2
58_task_size:
59 .long TASK_SIZE
60
61 .section .fixup, "ax"
62 .align 1
6319: retal 0
64
65 .section __ex_table, "a"
66 .align 2
67 .long 10b, 19b
diff --git a/arch/avr32/mach-at32ap/Makefile b/arch/avr32/mach-at32ap/Makefile
new file mode 100644
index 000000000000..4b10853eb614
--- /dev/null
+++ b/arch/avr32/mach-at32ap/Makefile
@@ -0,0 +1,2 @@
1obj-y += at32ap.o clock.o pio.o intc.o extint.o
2obj-$(CONFIG_CPU_AT32AP7000) += at32ap7000.o
diff --git a/arch/avr32/mach-at32ap/at32ap.c b/arch/avr32/mach-at32ap/at32ap.c
new file mode 100644
index 000000000000..f7cedf5aabea
--- /dev/null
+++ b/arch/avr32/mach-at32ap/at32ap.c
@@ -0,0 +1,90 @@
1/*
2 * Copyright (C) 2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/clk.h>
10#include <linux/err.h>
11#include <linux/init.h>
12#include <linux/platform_device.h>
13
14#include <asm/io.h>
15
16#include <asm/arch/init.h>
17#include <asm/arch/sm.h>
18
19struct at32_sm system_manager;
20
21static int __init at32_sm_init(void)
22{
23 struct resource *regs;
24 struct at32_sm *sm = &system_manager;
25 int ret = -ENXIO;
26
27 regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0);
28 if (!regs)
29 goto fail;
30
31 spin_lock_init(&sm->lock);
32 sm->pdev = &at32_sm_device;
33
34 ret = -ENOMEM;
35 sm->regs = ioremap(regs->start, regs->end - regs->start + 1);
36 if (!sm->regs)
37 goto fail;
38
39 return 0;
40
41fail:
42 printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret);
43 return ret;
44}
45
46void __init setup_platform(void)
47{
48 at32_sm_init();
49 at32_clock_init();
50 at32_portmux_init();
51
52 /* FIXME: This doesn't belong here */
53 at32_setup_serial_console(1);
54}
55
56static int __init pdc_probe(struct platform_device *pdev)
57{
58 struct clk *pclk, *hclk;
59
60 pclk = clk_get(&pdev->dev, "pclk");
61 if (IS_ERR(pclk)) {
62 dev_err(&pdev->dev, "no pclk defined\n");
63 return PTR_ERR(pclk);
64 }
65 hclk = clk_get(&pdev->dev, "hclk");
66 if (IS_ERR(hclk)) {
67 dev_err(&pdev->dev, "no hclk defined\n");
68 clk_put(pclk);
69 return PTR_ERR(hclk);
70 }
71
72 clk_enable(pclk);
73 clk_enable(hclk);
74
75 dev_info(&pdev->dev, "Atmel Peripheral DMA Controller enabled\n");
76 return 0;
77}
78
79static struct platform_driver pdc_driver = {
80 .probe = pdc_probe,
81 .driver = {
82 .name = "pdc",
83 },
84};
85
86static int __init pdc_init(void)
87{
88 return platform_driver_register(&pdc_driver);
89}
90arch_initcall(pdc_init);
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
new file mode 100644
index 000000000000..e8c6893a1c23
--- /dev/null
+++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -0,0 +1,866 @@
1/*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/clk.h>
9#include <linux/init.h>
10#include <linux/platform_device.h>
11
12#include <asm/io.h>
13
14#include <asm/arch/board.h>
15#include <asm/arch/portmux.h>
16#include <asm/arch/sm.h>
17
18#include "clock.h"
19#include "pio.h"
20#include "sm.h"
21
22#define PBMEM(base) \
23 { \
24 .start = base, \
25 .end = base + 0x3ff, \
26 .flags = IORESOURCE_MEM, \
27 }
28#define IRQ(num) \
29 { \
30 .start = num, \
31 .end = num, \
32 .flags = IORESOURCE_IRQ, \
33 }
34#define NAMED_IRQ(num, _name) \
35 { \
36 .start = num, \
37 .end = num, \
38 .name = _name, \
39 .flags = IORESOURCE_IRQ, \
40 }
41
42#define DEFINE_DEV(_name, _id) \
43static struct platform_device _name##_id##_device = { \
44 .name = #_name, \
45 .id = _id, \
46 .resource = _name##_id##_resource, \
47 .num_resources = ARRAY_SIZE(_name##_id##_resource), \
48}
49#define DEFINE_DEV_DATA(_name, _id) \
50static struct platform_device _name##_id##_device = { \
51 .name = #_name, \
52 .id = _id, \
53 .dev = { \
54 .platform_data = &_name##_id##_data, \
55 }, \
56 .resource = _name##_id##_resource, \
57 .num_resources = ARRAY_SIZE(_name##_id##_resource), \
58}
59
60#define DEV_CLK(_name, devname, bus, _index) \
61static struct clk devname##_##_name = { \
62 .name = #_name, \
63 .dev = &devname##_device.dev, \
64 .parent = &bus##_clk, \
65 .mode = bus##_clk_mode, \
66 .get_rate = bus##_clk_get_rate, \
67 .index = _index, \
68}
69
70enum {
71 PIOA,
72 PIOB,
73 PIOC,
74 PIOD,
75};
76
77enum {
78 FUNC_A,
79 FUNC_B,
80};
81
82unsigned long at32ap7000_osc_rates[3] = {
83 [0] = 32768,
84 /* FIXME: these are ATSTK1002-specific */
85 [1] = 20000000,
86 [2] = 12000000,
87};
88
89static unsigned long osc_get_rate(struct clk *clk)
90{
91 return at32ap7000_osc_rates[clk->index];
92}
93
94static unsigned long pll_get_rate(struct clk *clk, unsigned long control)
95{
96 unsigned long div, mul, rate;
97
98 if (!(control & SM_BIT(PLLEN)))
99 return 0;
100
101 div = SM_BFEXT(PLLDIV, control) + 1;
102 mul = SM_BFEXT(PLLMUL, control) + 1;
103
104 rate = clk->parent->get_rate(clk->parent);
105 rate = (rate + div / 2) / div;
106 rate *= mul;
107
108 return rate;
109}
110
111static unsigned long pll0_get_rate(struct clk *clk)
112{
113 u32 control;
114
115 control = sm_readl(&system_manager, PM_PLL0);
116
117 return pll_get_rate(clk, control);
118}
119
120static unsigned long pll1_get_rate(struct clk *clk)
121{
122 u32 control;
123
124 control = sm_readl(&system_manager, PM_PLL1);
125
126 return pll_get_rate(clk, control);
127}
128
129/*
130 * The AT32AP7000 has five primary clock sources: One 32kHz
131 * oscillator, two crystal oscillators and two PLLs.
132 */
133static struct clk osc32k = {
134 .name = "osc32k",
135 .get_rate = osc_get_rate,
136 .users = 1,
137 .index = 0,
138};
139static struct clk osc0 = {
140 .name = "osc0",
141 .get_rate = osc_get_rate,
142 .users = 1,
143 .index = 1,
144};
145static struct clk osc1 = {
146 .name = "osc1",
147 .get_rate = osc_get_rate,
148 .index = 2,
149};
150static struct clk pll0 = {
151 .name = "pll0",
152 .get_rate = pll0_get_rate,
153 .parent = &osc0,
154};
155static struct clk pll1 = {
156 .name = "pll1",
157 .get_rate = pll1_get_rate,
158 .parent = &osc0,
159};
160
161/*
162 * The main clock can be either osc0 or pll0. The boot loader may
163 * have chosen one for us, so we don't really know which one until we
164 * have a look at the SM.
165 */
166static struct clk *main_clock;
167
168/*
169 * Synchronous clocks are generated from the main clock. The clocks
170 * must satisfy the constraint
171 * fCPU >= fHSB >= fPB
172 * i.e. each clock must not be faster than its parent.
173 */
174static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift)
175{
176 return main_clock->get_rate(main_clock) >> shift;
177};
178
179static void cpu_clk_mode(struct clk *clk, int enabled)
180{
181 struct at32_sm *sm = &system_manager;
182 unsigned long flags;
183 u32 mask;
184
185 spin_lock_irqsave(&sm->lock, flags);
186 mask = sm_readl(sm, PM_CPU_MASK);
187 if (enabled)
188 mask |= 1 << clk->index;
189 else
190 mask &= ~(1 << clk->index);
191 sm_writel(sm, PM_CPU_MASK, mask);
192 spin_unlock_irqrestore(&sm->lock, flags);
193}
194
195static unsigned long cpu_clk_get_rate(struct clk *clk)
196{
197 unsigned long cksel, shift = 0;
198
199 cksel = sm_readl(&system_manager, PM_CKSEL);
200 if (cksel & SM_BIT(CPUDIV))
201 shift = SM_BFEXT(CPUSEL, cksel) + 1;
202
203 return bus_clk_get_rate(clk, shift);
204}
205
206static void hsb_clk_mode(struct clk *clk, int enabled)
207{
208 struct at32_sm *sm = &system_manager;
209 unsigned long flags;
210 u32 mask;
211
212 spin_lock_irqsave(&sm->lock, flags);
213 mask = sm_readl(sm, PM_HSB_MASK);
214 if (enabled)
215 mask |= 1 << clk->index;
216 else
217 mask &= ~(1 << clk->index);
218 sm_writel(sm, PM_HSB_MASK, mask);
219 spin_unlock_irqrestore(&sm->lock, flags);
220}
221
222static unsigned long hsb_clk_get_rate(struct clk *clk)
223{
224 unsigned long cksel, shift = 0;
225
226 cksel = sm_readl(&system_manager, PM_CKSEL);
227 if (cksel & SM_BIT(HSBDIV))
228 shift = SM_BFEXT(HSBSEL, cksel) + 1;
229
230 return bus_clk_get_rate(clk, shift);
231}
232
233static void pba_clk_mode(struct clk *clk, int enabled)
234{
235 struct at32_sm *sm = &system_manager;
236 unsigned long flags;
237 u32 mask;
238
239 spin_lock_irqsave(&sm->lock, flags);
240 mask = sm_readl(sm, PM_PBA_MASK);
241 if (enabled)
242 mask |= 1 << clk->index;
243 else
244 mask &= ~(1 << clk->index);
245 sm_writel(sm, PM_PBA_MASK, mask);
246 spin_unlock_irqrestore(&sm->lock, flags);
247}
248
249static unsigned long pba_clk_get_rate(struct clk *clk)
250{
251 unsigned long cksel, shift = 0;
252
253 cksel = sm_readl(&system_manager, PM_CKSEL);
254 if (cksel & SM_BIT(PBADIV))
255 shift = SM_BFEXT(PBASEL, cksel) + 1;
256
257 return bus_clk_get_rate(clk, shift);
258}
259
260static void pbb_clk_mode(struct clk *clk, int enabled)
261{
262 struct at32_sm *sm = &system_manager;
263 unsigned long flags;
264 u32 mask;
265
266 spin_lock_irqsave(&sm->lock, flags);
267 mask = sm_readl(sm, PM_PBB_MASK);
268 if (enabled)
269 mask |= 1 << clk->index;
270 else
271 mask &= ~(1 << clk->index);
272 sm_writel(sm, PM_PBB_MASK, mask);
273 spin_unlock_irqrestore(&sm->lock, flags);
274}
275
276static unsigned long pbb_clk_get_rate(struct clk *clk)
277{
278 unsigned long cksel, shift = 0;
279
280 cksel = sm_readl(&system_manager, PM_CKSEL);
281 if (cksel & SM_BIT(PBBDIV))
282 shift = SM_BFEXT(PBBSEL, cksel) + 1;
283
284 return bus_clk_get_rate(clk, shift);
285}
286
287static struct clk cpu_clk = {
288 .name = "cpu",
289 .get_rate = cpu_clk_get_rate,
290 .users = 1,
291};
292static struct clk hsb_clk = {
293 .name = "hsb",
294 .parent = &cpu_clk,
295 .get_rate = hsb_clk_get_rate,
296};
297static struct clk pba_clk = {
298 .name = "pba",
299 .parent = &hsb_clk,
300 .mode = hsb_clk_mode,
301 .get_rate = pba_clk_get_rate,
302 .index = 1,
303};
304static struct clk pbb_clk = {
305 .name = "pbb",
306 .parent = &hsb_clk,
307 .mode = hsb_clk_mode,
308 .get_rate = pbb_clk_get_rate,
309 .users = 1,
310 .index = 2,
311};
312
313/* --------------------------------------------------------------------
314 * Generic Clock operations
315 * -------------------------------------------------------------------- */
316
317static void genclk_mode(struct clk *clk, int enabled)
318{
319 u32 control;
320
321 BUG_ON(clk->index > 7);
322
323 control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
324 if (enabled)
325 control |= SM_BIT(CEN);
326 else
327 control &= ~SM_BIT(CEN);
328 sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control);
329}
330
331static unsigned long genclk_get_rate(struct clk *clk)
332{
333 u32 control;
334 unsigned long div = 1;
335
336 BUG_ON(clk->index > 7);
337
338 if (!clk->parent)
339 return 0;
340
341 control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
342 if (control & SM_BIT(DIVEN))
343 div = 2 * (SM_BFEXT(DIV, control) + 1);
344
345 return clk->parent->get_rate(clk->parent) / div;
346}
347
348static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply)
349{
350 u32 control;
351 unsigned long parent_rate, actual_rate, div;
352
353 BUG_ON(clk->index > 7);
354
355 if (!clk->parent)
356 return 0;
357
358 parent_rate = clk->parent->get_rate(clk->parent);
359 control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
360
361 if (rate > 3 * parent_rate / 4) {
362 actual_rate = parent_rate;
363 control &= ~SM_BIT(DIVEN);
364 } else {
365 div = (parent_rate + rate) / (2 * rate) - 1;
366 control = SM_BFINS(DIV, div, control) | SM_BIT(DIVEN);
367 actual_rate = parent_rate / (2 * (div + 1));
368 }
369
370 printk("clk %s: new rate %lu (actual rate %lu)\n",
371 clk->name, rate, actual_rate);
372
373 if (apply)
374 sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index,
375 control);
376
377 return actual_rate;
378}
379
380int genclk_set_parent(struct clk *clk, struct clk *parent)
381{
382 u32 control;
383
384 BUG_ON(clk->index > 7);
385
386 printk("clk %s: new parent %s (was %s)\n",
387 clk->name, parent->name,
388 clk->parent ? clk->parent->name : "(null)");
389
390 control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index);
391
392 if (parent == &osc1 || parent == &pll1)
393 control |= SM_BIT(OSCSEL);
394 else if (parent == &osc0 || parent == &pll0)
395 control &= ~SM_BIT(OSCSEL);
396 else
397 return -EINVAL;
398
399 if (parent == &pll0 || parent == &pll1)
400 control |= SM_BIT(PLLSEL);
401 else
402 control &= ~SM_BIT(PLLSEL);
403
404 sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control);
405 clk->parent = parent;
406
407 return 0;
408}
409
410/* --------------------------------------------------------------------
411 * System peripherals
412 * -------------------------------------------------------------------- */
413static struct resource sm_resource[] = {
414 PBMEM(0xfff00000),
415 NAMED_IRQ(19, "eim"),
416 NAMED_IRQ(20, "pm"),
417 NAMED_IRQ(21, "rtc"),
418};
419struct platform_device at32_sm_device = {
420 .name = "sm",
421 .id = 0,
422 .resource = sm_resource,
423 .num_resources = ARRAY_SIZE(sm_resource),
424};
425DEV_CLK(pclk, at32_sm, pbb, 0);
426
427static struct resource intc0_resource[] = {
428 PBMEM(0xfff00400),
429};
430struct platform_device at32_intc0_device = {
431 .name = "intc",
432 .id = 0,
433 .resource = intc0_resource,
434 .num_resources = ARRAY_SIZE(intc0_resource),
435};
436DEV_CLK(pclk, at32_intc0, pbb, 1);
437
438static struct clk ebi_clk = {
439 .name = "ebi",
440 .parent = &hsb_clk,
441 .mode = hsb_clk_mode,
442 .get_rate = hsb_clk_get_rate,
443 .users = 1,
444};
445static struct clk hramc_clk = {
446 .name = "hramc",
447 .parent = &hsb_clk,
448 .mode = hsb_clk_mode,
449 .get_rate = hsb_clk_get_rate,
450 .users = 1,
451};
452
453static struct platform_device pdc_device = {
454 .name = "pdc",
455 .id = 0,
456};
457DEV_CLK(hclk, pdc, hsb, 4);
458DEV_CLK(pclk, pdc, pba, 16);
459
460static struct clk pico_clk = {
461 .name = "pico",
462 .parent = &cpu_clk,
463 .mode = cpu_clk_mode,
464 .get_rate = cpu_clk_get_rate,
465 .users = 1,
466};
467
468/* --------------------------------------------------------------------
469 * PIO
470 * -------------------------------------------------------------------- */
471
472static struct resource pio0_resource[] = {
473 PBMEM(0xffe02800),
474 IRQ(13),
475};
476DEFINE_DEV(pio, 0);
477DEV_CLK(mck, pio0, pba, 10);
478
479static struct resource pio1_resource[] = {
480 PBMEM(0xffe02c00),
481 IRQ(14),
482};
483DEFINE_DEV(pio, 1);
484DEV_CLK(mck, pio1, pba, 11);
485
486static struct resource pio2_resource[] = {
487 PBMEM(0xffe03000),
488 IRQ(15),
489};
490DEFINE_DEV(pio, 2);
491DEV_CLK(mck, pio2, pba, 12);
492
493static struct resource pio3_resource[] = {
494 PBMEM(0xffe03400),
495 IRQ(16),
496};
497DEFINE_DEV(pio, 3);
498DEV_CLK(mck, pio3, pba, 13);
499
500void __init at32_add_system_devices(void)
501{
502 system_manager.eim_first_irq = NR_INTERNAL_IRQS;
503
504 platform_device_register(&at32_sm_device);
505 platform_device_register(&at32_intc0_device);
506 platform_device_register(&pdc_device);
507
508 platform_device_register(&pio0_device);
509 platform_device_register(&pio1_device);
510 platform_device_register(&pio2_device);
511 platform_device_register(&pio3_device);
512}
513
514/* --------------------------------------------------------------------
515 * USART
516 * -------------------------------------------------------------------- */
517
518static struct resource usart0_resource[] = {
519 PBMEM(0xffe00c00),
520 IRQ(7),
521};
522DEFINE_DEV(usart, 0);
523DEV_CLK(usart, usart0, pba, 4);
524
525static struct resource usart1_resource[] = {
526 PBMEM(0xffe01000),
527 IRQ(7),
528};
529DEFINE_DEV(usart, 1);
530DEV_CLK(usart, usart1, pba, 4);
531
532static struct resource usart2_resource[] = {
533 PBMEM(0xffe01400),
534 IRQ(8),
535};
536DEFINE_DEV(usart, 2);
537DEV_CLK(usart, usart2, pba, 5);
538
539static struct resource usart3_resource[] = {
540 PBMEM(0xffe01800),
541 IRQ(9),
542};
543DEFINE_DEV(usart, 3);
544DEV_CLK(usart, usart3, pba, 6);
545
546static inline void configure_usart0_pins(void)
547{
548 portmux_set_func(PIOA, 8, FUNC_B); /* RXD */
549 portmux_set_func(PIOA, 9, FUNC_B); /* TXD */
550}
551
552static inline void configure_usart1_pins(void)
553{
554 portmux_set_func(PIOA, 17, FUNC_A); /* RXD */
555 portmux_set_func(PIOA, 18, FUNC_A); /* TXD */
556}
557
558static inline void configure_usart2_pins(void)
559{
560 portmux_set_func(PIOB, 26, FUNC_B); /* RXD */
561 portmux_set_func(PIOB, 27, FUNC_B); /* TXD */
562}
563
564static inline void configure_usart3_pins(void)
565{
566 portmux_set_func(PIOB, 18, FUNC_B); /* RXD */
567 portmux_set_func(PIOB, 17, FUNC_B); /* TXD */
568}
569
570static struct platform_device *setup_usart(unsigned int id)
571{
572 struct platform_device *pdev;
573
574 switch (id) {
575 case 0:
576 pdev = &usart0_device;
577 configure_usart0_pins();
578 break;
579 case 1:
580 pdev = &usart1_device;
581 configure_usart1_pins();
582 break;
583 case 2:
584 pdev = &usart2_device;
585 configure_usart2_pins();
586 break;
587 case 3:
588 pdev = &usart3_device;
589 configure_usart3_pins();
590 break;
591 default:
592 pdev = NULL;
593 break;
594 }
595
596 return pdev;
597}
598
599struct platform_device *__init at32_add_device_usart(unsigned int id)
600{
601 struct platform_device *pdev;
602
603 pdev = setup_usart(id);
604 if (pdev)
605 platform_device_register(pdev);
606
607 return pdev;
608}
609
610struct platform_device *at91_default_console_device;
611
612void __init at32_setup_serial_console(unsigned int usart_id)
613{
614 at91_default_console_device = setup_usart(usart_id);
615}
616
617/* --------------------------------------------------------------------
618 * Ethernet
619 * -------------------------------------------------------------------- */
620
621static struct eth_platform_data macb0_data;
622static struct resource macb0_resource[] = {
623 PBMEM(0xfff01800),
624 IRQ(25),
625};
626DEFINE_DEV_DATA(macb, 0);
627DEV_CLK(hclk, macb0, hsb, 8);
628DEV_CLK(pclk, macb0, pbb, 6);
629
630struct platform_device *__init
631at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
632{
633 struct platform_device *pdev;
634
635 switch (id) {
636 case 0:
637 pdev = &macb0_device;
638
639 portmux_set_func(PIOC, 3, FUNC_A); /* TXD0 */
640 portmux_set_func(PIOC, 4, FUNC_A); /* TXD1 */
641 portmux_set_func(PIOC, 7, FUNC_A); /* TXEN */
642 portmux_set_func(PIOC, 8, FUNC_A); /* TXCK */
643 portmux_set_func(PIOC, 9, FUNC_A); /* RXD0 */
644 portmux_set_func(PIOC, 10, FUNC_A); /* RXD1 */
645 portmux_set_func(PIOC, 13, FUNC_A); /* RXER */
646 portmux_set_func(PIOC, 15, FUNC_A); /* RXDV */
647 portmux_set_func(PIOC, 16, FUNC_A); /* MDC */
648 portmux_set_func(PIOC, 17, FUNC_A); /* MDIO */
649
650 if (!data->is_rmii) {
651 portmux_set_func(PIOC, 0, FUNC_A); /* COL */
652 portmux_set_func(PIOC, 1, FUNC_A); /* CRS */
653 portmux_set_func(PIOC, 2, FUNC_A); /* TXER */
654 portmux_set_func(PIOC, 5, FUNC_A); /* TXD2 */
655 portmux_set_func(PIOC, 6, FUNC_A); /* TXD3 */
656 portmux_set_func(PIOC, 11, FUNC_A); /* RXD2 */
657 portmux_set_func(PIOC, 12, FUNC_A); /* RXD3 */
658 portmux_set_func(PIOC, 14, FUNC_A); /* RXCK */
659 portmux_set_func(PIOC, 18, FUNC_A); /* SPD */
660 }
661 break;
662
663 default:
664 return NULL;
665 }
666
667 memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
668 platform_device_register(pdev);
669
670 return pdev;
671}
672
673/* --------------------------------------------------------------------
674 * SPI
675 * -------------------------------------------------------------------- */
676static struct resource spi0_resource[] = {
677 PBMEM(0xffe00000),
678 IRQ(3),
679};
680DEFINE_DEV(spi, 0);
681DEV_CLK(mck, spi0, pba, 0);
682
683struct platform_device *__init at32_add_device_spi(unsigned int id)
684{
685 struct platform_device *pdev;
686
687 switch (id) {
688 case 0:
689 pdev = &spi0_device;
690 portmux_set_func(PIOA, 0, FUNC_A); /* MISO */
691 portmux_set_func(PIOA, 1, FUNC_A); /* MOSI */
692 portmux_set_func(PIOA, 2, FUNC_A); /* SCK */
693 portmux_set_func(PIOA, 3, FUNC_A); /* NPCS0 */
694 portmux_set_func(PIOA, 4, FUNC_A); /* NPCS1 */
695 portmux_set_func(PIOA, 5, FUNC_A); /* NPCS2 */
696 break;
697
698 default:
699 return NULL;
700 }
701
702 platform_device_register(pdev);
703 return pdev;
704}
705
706/* --------------------------------------------------------------------
707 * LCDC
708 * -------------------------------------------------------------------- */
709static struct lcdc_platform_data lcdc0_data;
710static struct resource lcdc0_resource[] = {
711 {
712 .start = 0xff000000,
713 .end = 0xff000fff,
714 .flags = IORESOURCE_MEM,
715 },
716 IRQ(1),
717};
718DEFINE_DEV_DATA(lcdc, 0);
719DEV_CLK(hclk, lcdc0, hsb, 7);
720static struct clk lcdc0_pixclk = {
721 .name = "pixclk",
722 .dev = &lcdc0_device.dev,
723 .mode = genclk_mode,
724 .get_rate = genclk_get_rate,
725 .set_rate = genclk_set_rate,
726 .set_parent = genclk_set_parent,
727 .index = 7,
728};
729
730struct platform_device *__init
731at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data)
732{
733 struct platform_device *pdev;
734
735 switch (id) {
736 case 0:
737 pdev = &lcdc0_device;
738 portmux_set_func(PIOC, 19, FUNC_A); /* CC */
739 portmux_set_func(PIOC, 20, FUNC_A); /* HSYNC */
740 portmux_set_func(PIOC, 21, FUNC_A); /* PCLK */
741 portmux_set_func(PIOC, 22, FUNC_A); /* VSYNC */
742 portmux_set_func(PIOC, 23, FUNC_A); /* DVAL */
743 portmux_set_func(PIOC, 24, FUNC_A); /* MODE */
744 portmux_set_func(PIOC, 25, FUNC_A); /* PWR */
745 portmux_set_func(PIOC, 26, FUNC_A); /* DATA0 */
746 portmux_set_func(PIOC, 27, FUNC_A); /* DATA1 */
747 portmux_set_func(PIOC, 28, FUNC_A); /* DATA2 */
748 portmux_set_func(PIOC, 29, FUNC_A); /* DATA3 */
749 portmux_set_func(PIOC, 30, FUNC_A); /* DATA4 */
750 portmux_set_func(PIOC, 31, FUNC_A); /* DATA5 */
751 portmux_set_func(PIOD, 0, FUNC_A); /* DATA6 */
752 portmux_set_func(PIOD, 1, FUNC_A); /* DATA7 */
753 portmux_set_func(PIOD, 2, FUNC_A); /* DATA8 */
754 portmux_set_func(PIOD, 3, FUNC_A); /* DATA9 */
755 portmux_set_func(PIOD, 4, FUNC_A); /* DATA10 */
756 portmux_set_func(PIOD, 5, FUNC_A); /* DATA11 */
757 portmux_set_func(PIOD, 6, FUNC_A); /* DATA12 */
758 portmux_set_func(PIOD, 7, FUNC_A); /* DATA13 */
759 portmux_set_func(PIOD, 8, FUNC_A); /* DATA14 */
760 portmux_set_func(PIOD, 9, FUNC_A); /* DATA15 */
761 portmux_set_func(PIOD, 10, FUNC_A); /* DATA16 */
762 portmux_set_func(PIOD, 11, FUNC_A); /* DATA17 */
763 portmux_set_func(PIOD, 12, FUNC_A); /* DATA18 */
764 portmux_set_func(PIOD, 13, FUNC_A); /* DATA19 */
765 portmux_set_func(PIOD, 14, FUNC_A); /* DATA20 */
766 portmux_set_func(PIOD, 15, FUNC_A); /* DATA21 */
767 portmux_set_func(PIOD, 16, FUNC_A); /* DATA22 */
768 portmux_set_func(PIOD, 17, FUNC_A); /* DATA23 */
769
770 clk_set_parent(&lcdc0_pixclk, &pll0);
771 clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0));
772 break;
773
774 default:
775 return NULL;
776 }
777
778 memcpy(pdev->dev.platform_data, data,
779 sizeof(struct lcdc_platform_data));
780
781 platform_device_register(pdev);
782 return pdev;
783}
784
785struct clk *at32_clock_list[] = {
786 &osc32k,
787 &osc0,
788 &osc1,
789 &pll0,
790 &pll1,
791 &cpu_clk,
792 &hsb_clk,
793 &pba_clk,
794 &pbb_clk,
795 &at32_sm_pclk,
796 &at32_intc0_pclk,
797 &ebi_clk,
798 &hramc_clk,
799 &pdc_hclk,
800 &pdc_pclk,
801 &pico_clk,
802 &pio0_mck,
803 &pio1_mck,
804 &pio2_mck,
805 &pio3_mck,
806 &usart0_usart,
807 &usart1_usart,
808 &usart2_usart,
809 &usart3_usart,
810 &macb0_hclk,
811 &macb0_pclk,
812 &spi0_mck,
813 &lcdc0_hclk,
814 &lcdc0_pixclk,
815};
816unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list);
817
818void __init at32_portmux_init(void)
819{
820 at32_init_pio(&pio0_device);
821 at32_init_pio(&pio1_device);
822 at32_init_pio(&pio2_device);
823 at32_init_pio(&pio3_device);
824}
825
826void __init at32_clock_init(void)
827{
828 struct at32_sm *sm = &system_manager;
829 u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0;
830 int i;
831
832 if (sm_readl(sm, PM_MCCTRL) & SM_BIT(PLLSEL))
833 main_clock = &pll0;
834 else
835 main_clock = &osc0;
836
837 if (sm_readl(sm, PM_PLL0) & SM_BIT(PLLOSC))
838 pll0.parent = &osc1;
839 if (sm_readl(sm, PM_PLL1) & SM_BIT(PLLOSC))
840 pll1.parent = &osc1;
841
842 /*
843 * Turn on all clocks that have at least one user already, and
844 * turn off everything else. We only do this for module
845 * clocks, and even though it isn't particularly pretty to
846 * check the address of the mode function, it should do the
847 * trick...
848 */
849 for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) {
850 struct clk *clk = at32_clock_list[i];
851
852 if (clk->mode == &cpu_clk_mode)
853 cpu_mask |= 1 << clk->index;
854 else if (clk->mode == &hsb_clk_mode)
855 hsb_mask |= 1 << clk->index;
856 else if (clk->mode == &pba_clk_mode)
857 pba_mask |= 1 << clk->index;
858 else if (clk->mode == &pbb_clk_mode)
859 pbb_mask |= 1 << clk->index;
860 }
861
862 sm_writel(sm, PM_CPU_MASK, cpu_mask);
863 sm_writel(sm, PM_HSB_MASK, hsb_mask);
864 sm_writel(sm, PM_PBA_MASK, pba_mask);
865 sm_writel(sm, PM_PBB_MASK, pbb_mask);
866}
diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c
new file mode 100644
index 000000000000..3d0d1097389f
--- /dev/null
+++ b/arch/avr32/mach-at32ap/clock.c
@@ -0,0 +1,148 @@
1/*
2 * Clock management for AT32AP CPUs
3 *
4 * Copyright (C) 2006 Atmel Corporation
5 *
6 * Based on arch/arm/mach-at91rm9200/clock.c
7 * Copyright (C) 2005 David Brownell
8 * Copyright (C) 2005 Ivan Kokshaysky
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14#include <linux/clk.h>
15#include <linux/err.h>
16#include <linux/device.h>
17#include <linux/string.h>
18
19#include "clock.h"
20
21static spinlock_t clk_lock = SPIN_LOCK_UNLOCKED;
22
23struct clk *clk_get(struct device *dev, const char *id)
24{
25 int i;
26
27 for (i = 0; i < at32_nr_clocks; i++) {
28 struct clk *clk = at32_clock_list[i];
29
30 if (clk->dev == dev && strcmp(id, clk->name) == 0)
31 return clk;
32 }
33
34 return ERR_PTR(-ENOENT);
35}
36EXPORT_SYMBOL(clk_get);
37
38void clk_put(struct clk *clk)
39{
40 /* clocks are static for now, we can't free them */
41}
42EXPORT_SYMBOL(clk_put);
43
44static void __clk_enable(struct clk *clk)
45{
46 if (clk->parent)
47 __clk_enable(clk->parent);
48 if (clk->users++ == 0 && clk->mode)
49 clk->mode(clk, 1);
50}
51
52int clk_enable(struct clk *clk)
53{
54 unsigned long flags;
55
56 spin_lock_irqsave(&clk_lock, flags);
57 __clk_enable(clk);
58 spin_unlock_irqrestore(&clk_lock, flags);
59
60 return 0;
61}
62EXPORT_SYMBOL(clk_enable);
63
64static void __clk_disable(struct clk *clk)
65{
66 BUG_ON(clk->users == 0);
67
68 if (--clk->users == 0 && clk->mode)
69 clk->mode(clk, 0);
70 if (clk->parent)
71 __clk_disable(clk->parent);
72}
73
74void clk_disable(struct clk *clk)
75{
76 unsigned long flags;
77
78 spin_lock_irqsave(&clk_lock, flags);
79 __clk_disable(clk);
80 spin_unlock_irqrestore(&clk_lock, flags);
81}
82EXPORT_SYMBOL(clk_disable);
83
84unsigned long clk_get_rate(struct clk *clk)
85{
86 unsigned long flags;
87 unsigned long rate;
88
89 spin_lock_irqsave(&clk_lock, flags);
90 rate = clk->get_rate(clk);
91 spin_unlock_irqrestore(&clk_lock, flags);
92
93 return rate;
94}
95EXPORT_SYMBOL(clk_get_rate);
96
97long clk_round_rate(struct clk *clk, unsigned long rate)
98{
99 unsigned long flags, actual_rate;
100
101 if (!clk->set_rate)
102 return -ENOSYS;
103
104 spin_lock_irqsave(&clk_lock, flags);
105 actual_rate = clk->set_rate(clk, rate, 0);
106 spin_unlock_irqrestore(&clk_lock, flags);
107
108 return actual_rate;
109}
110EXPORT_SYMBOL(clk_round_rate);
111
112int clk_set_rate(struct clk *clk, unsigned long rate)
113{
114 unsigned long flags;
115 long ret;
116
117 if (!clk->set_rate)
118 return -ENOSYS;
119
120 spin_lock_irqsave(&clk_lock, flags);
121 ret = clk->set_rate(clk, rate, 1);
122 spin_unlock_irqrestore(&clk_lock, flags);
123
124 return (ret < 0) ? ret : 0;
125}
126EXPORT_SYMBOL(clk_set_rate);
127
128int clk_set_parent(struct clk *clk, struct clk *parent)
129{
130 unsigned long flags;
131 int ret;
132
133 if (!clk->set_parent)
134 return -ENOSYS;
135
136 spin_lock_irqsave(&clk_lock, flags);
137 ret = clk->set_parent(clk, parent);
138 spin_unlock_irqrestore(&clk_lock, flags);
139
140 return ret;
141}
142EXPORT_SYMBOL(clk_set_parent);
143
144struct clk *clk_get_parent(struct clk *clk)
145{
146 return clk->parent;
147}
148EXPORT_SYMBOL(clk_get_parent);
diff --git a/arch/avr32/mach-at32ap/clock.h b/arch/avr32/mach-at32ap/clock.h
new file mode 100644
index 000000000000..f953f044ba4d
--- /dev/null
+++ b/arch/avr32/mach-at32ap/clock.h
@@ -0,0 +1,30 @@
1/*
2 * Clock management for AT32AP CPUs
3 *
4 * Copyright (C) 2006 Atmel Corporation
5 *
6 * Based on arch/arm/mach-at91rm9200/clock.c
7 * Copyright (C) 2005 David Brownell
8 * Copyright (C) 2005 Ivan Kokshaysky
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14#include <linux/clk.h>
15
16struct clk {
17 const char *name; /* Clock name/function */
18 struct device *dev; /* Device the clock is used by */
19 struct clk *parent; /* Parent clock, if any */
20 void (*mode)(struct clk *clk, int enabled);
21 unsigned long (*get_rate)(struct clk *clk);
22 long (*set_rate)(struct clk *clk, unsigned long rate,
23 int apply);
24 int (*set_parent)(struct clk *clk, struct clk *parent);
25 u16 users; /* Enabled if non-zero */
26 u16 index; /* Sibling index */
27};
28
29extern struct clk *at32_clock_list[];
30extern unsigned int at32_nr_clocks;
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
new file mode 100644
index 000000000000..7da9c5f7a0eb
--- /dev/null
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -0,0 +1,171 @@
1/*
2 * External interrupt handling for AT32AP CPUs
3 *
4 * Copyright (C) 2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/errno.h>
12#include <linux/init.h>
13#include <linux/interrupt.h>
14#include <linux/irq.h>
15#include <linux/platform_device.h>
16#include <linux/random.h>
17
18#include <asm/io.h>
19
20#include <asm/arch/sm.h>
21
22#include "sm.h"
23
24static void eim_ack_irq(unsigned int irq)
25{
26 struct at32_sm *sm = get_irq_chip_data(irq);
27 sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq));
28}
29
30static void eim_mask_irq(unsigned int irq)
31{
32 struct at32_sm *sm = get_irq_chip_data(irq);
33 sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq));
34}
35
36static void eim_mask_ack_irq(unsigned int irq)
37{
38 struct at32_sm *sm = get_irq_chip_data(irq);
39 sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq));
40 sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq));
41}
42
43static void eim_unmask_irq(unsigned int irq)
44{
45 struct at32_sm *sm = get_irq_chip_data(irq);
46 sm_writel(sm, EIM_IER, 1 << (irq - sm->eim_first_irq));
47}
48
49static int eim_set_irq_type(unsigned int irq, unsigned int flow_type)
50{
51 struct at32_sm *sm = get_irq_chip_data(irq);
52 unsigned int i = irq - sm->eim_first_irq;
53 u32 mode, edge, level;
54 unsigned long flags;
55 int ret = 0;
56
57 flow_type &= IRQ_TYPE_SENSE_MASK;
58
59 spin_lock_irqsave(&sm->lock, flags);
60
61 mode = sm_readl(sm, EIM_MODE);
62 edge = sm_readl(sm, EIM_EDGE);
63 level = sm_readl(sm, EIM_LEVEL);
64
65 switch (flow_type) {
66 case IRQ_TYPE_LEVEL_LOW:
67 mode |= 1 << i;
68 level &= ~(1 << i);
69 break;
70 case IRQ_TYPE_LEVEL_HIGH:
71 mode |= 1 << i;
72 level |= 1 << i;
73 break;
74 case IRQ_TYPE_EDGE_RISING:
75 mode &= ~(1 << i);
76 edge |= 1 << i;
77 break;
78 case IRQ_TYPE_EDGE_FALLING:
79 mode &= ~(1 << i);
80 edge &= ~(1 << i);
81 break;
82 default:
83 ret = -EINVAL;
84 break;
85 }
86
87 sm_writel(sm, EIM_MODE, mode);
88 sm_writel(sm, EIM_EDGE, edge);
89 sm_writel(sm, EIM_LEVEL, level);
90
91 spin_unlock_irqrestore(&sm->lock, flags);
92
93 return ret;
94}
95
96struct irq_chip eim_chip = {
97 .name = "eim",
98 .ack = eim_ack_irq,
99 .mask = eim_mask_irq,
100 .mask_ack = eim_mask_ack_irq,
101 .unmask = eim_unmask_irq,
102 .set_type = eim_set_irq_type,
103};
104
105static void demux_eim_irq(unsigned int irq, struct irq_desc *desc,
106 struct pt_regs *regs)
107{
108 struct at32_sm *sm = desc->handler_data;
109 struct irq_desc *ext_desc;
110 unsigned long status, pending;
111 unsigned int i, ext_irq;
112
113 spin_lock(&sm->lock);
114
115 status = sm_readl(sm, EIM_ISR);
116 pending = status & sm_readl(sm, EIM_IMR);
117
118 while (pending) {
119 i = fls(pending) - 1;
120 pending &= ~(1 << i);
121
122 ext_irq = i + sm->eim_first_irq;
123 ext_desc = irq_desc + ext_irq;
124 ext_desc->handle_irq(ext_irq, ext_desc, regs);
125 }
126
127 spin_unlock(&sm->lock);
128}
129
130static int __init eim_init(void)
131{
132 struct at32_sm *sm = &system_manager;
133 unsigned int i;
134 unsigned int nr_irqs;
135 unsigned int int_irq;
136 u32 pattern;
137
138 /*
139 * The EIM is really the same module as SM, so register
140 * mapping, etc. has been taken care of already.
141 */
142
143 /*
144 * Find out how many interrupt lines that are actually
145 * implemented in hardware.
146 */
147 sm_writel(sm, EIM_IDR, ~0UL);
148 sm_writel(sm, EIM_MODE, ~0UL);
149 pattern = sm_readl(sm, EIM_MODE);
150 nr_irqs = fls(pattern);
151
152 sm->eim_chip = &eim_chip;
153
154 for (i = 0; i < nr_irqs; i++) {
155 set_irq_chip(sm->eim_first_irq + i, &eim_chip);
156 set_irq_chip_data(sm->eim_first_irq + i, sm);
157 }
158
159 int_irq = platform_get_irq_byname(sm->pdev, "eim");
160
161 set_irq_chained_handler(int_irq, demux_eim_irq);
162 set_irq_data(int_irq, sm);
163
164 printk("EIM: External Interrupt Module at 0x%p, IRQ %u\n",
165 sm->regs, int_irq);
166 printk("EIM: Handling %u external IRQs, starting with IRQ %u\n",
167 nr_irqs, sm->eim_first_irq);
168
169 return 0;
170}
171arch_initcall(eim_init);
diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c
new file mode 100644
index 000000000000..74f8c9f2f03d
--- /dev/null
+++ b/arch/avr32/mach-at32ap/intc.c
@@ -0,0 +1,133 @@
1/*
2 * Copyright (C) 2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/clk.h>
10#include <linux/err.h>
11#include <linux/init.h>
12#include <linux/interrupt.h>
13#include <linux/irq.h>
14#include <linux/platform_device.h>
15
16#include <asm/io.h>
17
18#include "intc.h"
19
20struct intc {
21 void __iomem *regs;
22 struct irq_chip chip;
23};
24
25extern struct platform_device at32_intc0_device;
26
27/*
28 * TODO: We may be able to implement mask/unmask by setting IxM flags
29 * in the status register.
30 */
31static void intc_mask_irq(unsigned int irq)
32{
33
34}
35
36static void intc_unmask_irq(unsigned int irq)
37{
38
39}
40
41static struct intc intc0 = {
42 .chip = {
43 .name = "intc",
44 .mask = intc_mask_irq,
45 .unmask = intc_unmask_irq,
46 },
47};
48
49/*
50 * All interrupts go via intc at some point.
51 */
52asmlinkage void do_IRQ(int level, struct pt_regs *regs)
53{
54 struct irq_desc *desc;
55 unsigned int irq;
56 unsigned long status_reg;
57
58 local_irq_disable();
59
60 irq_enter();
61
62 irq = intc_readl(&intc0, INTCAUSE0 - 4 * level);
63 desc = irq_desc + irq;
64 desc->handle_irq(irq, desc, regs);
65
66 /*
67 * Clear all interrupt level masks so that we may handle
68 * interrupts during softirq processing. If this is a nested
69 * interrupt, interrupts must stay globally disabled until we
70 * return.
71 */
72 status_reg = sysreg_read(SR);
73 status_reg &= ~(SYSREG_BIT(I0M) | SYSREG_BIT(I1M)
74 | SYSREG_BIT(I2M) | SYSREG_BIT(I3M));
75 sysreg_write(SR, status_reg);
76
77 irq_exit();
78}
79
80void __init init_IRQ(void)
81{
82 extern void _evba(void);
83 extern void irq_level0(void);
84 struct resource *regs;
85 struct clk *pclk;
86 unsigned int i;
87 u32 offset, readback;
88
89 regs = platform_get_resource(&at32_intc0_device, IORESOURCE_MEM, 0);
90 if (!regs) {
91 printk(KERN_EMERG "intc: no mmio resource defined\n");
92 goto fail;
93 }
94 pclk = clk_get(&at32_intc0_device.dev, "pclk");
95 if (IS_ERR(pclk)) {
96 printk(KERN_EMERG "intc: no clock defined\n");
97 goto fail;
98 }
99
100 clk_enable(pclk);
101
102 intc0.regs = ioremap(regs->start, regs->end - regs->start + 1);
103 if (!intc0.regs) {
104 printk(KERN_EMERG "intc: failed to map registers (0x%08lx)\n",
105 (unsigned long)regs->start);
106 goto fail;
107 }
108
109 /*
110 * Initialize all interrupts to level 0 (lowest priority). The
111 * priority level may be changed by calling
112 * irq_set_priority().
113 *
114 */
115 offset = (unsigned long)&irq_level0 - (unsigned long)&_evba;
116 for (i = 0; i < NR_INTERNAL_IRQS; i++) {
117 intc_writel(&intc0, INTPR0 + 4 * i, offset);
118 readback = intc_readl(&intc0, INTPR0 + 4 * i);
119 if (readback == offset)
120 set_irq_chip_and_handler(i, &intc0.chip,
121 handle_simple_irq);
122 }
123
124 /* Unmask all interrupt levels */
125 sysreg_write(SR, (sysreg_read(SR)
126 & ~(SR_I3M | SR_I2M | SR_I1M | SR_I0M)));
127
128 return;
129
130fail:
131 panic("Interrupt controller initialization failed!\n");
132}
133
diff --git a/arch/avr32/mach-at32ap/intc.h b/arch/avr32/mach-at32ap/intc.h
new file mode 100644
index 000000000000..d289ca2fff13
--- /dev/null
+++ b/arch/avr32/mach-at32ap/intc.h
@@ -0,0 +1,327 @@
1/*
2 * Automatically generated by gen-header.xsl
3 */
4#ifndef __ASM_AVR32_PERIHP_INTC_H__
5#define __ASM_AVR32_PERIHP_INTC_H__
6
7#define INTC_NUM_INT_GRPS 33
8
9#define INTC_INTPR0 0x0
10# define INTC_INTPR0_INTLEV_OFFSET 30
11# define INTC_INTPR0_INTLEV_SIZE 2
12# define INTC_INTPR0_OFFSET_OFFSET 0
13# define INTC_INTPR0_OFFSET_SIZE 24
14#define INTC_INTREQ0 0x100
15# define INTC_INTREQ0_IREQUEST0_OFFSET 0
16# define INTC_INTREQ0_IREQUEST0_SIZE 1
17# define INTC_INTREQ0_IREQUEST1_OFFSET 1
18# define INTC_INTREQ0_IREQUEST1_SIZE 1
19#define INTC_INTPR1 0x4
20# define INTC_INTPR1_INTLEV_OFFSET 30
21# define INTC_INTPR1_INTLEV_SIZE 2
22# define INTC_INTPR1_OFFSET_OFFSET 0
23# define INTC_INTPR1_OFFSET_SIZE 24
24#define INTC_INTREQ1 0x104
25# define INTC_INTREQ1_IREQUEST32_OFFSET 0
26# define INTC_INTREQ1_IREQUEST32_SIZE 1
27# define INTC_INTREQ1_IREQUEST33_OFFSET 1
28# define INTC_INTREQ1_IREQUEST33_SIZE 1
29# define INTC_INTREQ1_IREQUEST34_OFFSET 2
30# define INTC_INTREQ1_IREQUEST34_SIZE 1
31# define INTC_INTREQ1_IREQUEST35_OFFSET 3
32# define INTC_INTREQ1_IREQUEST35_SIZE 1
33# define INTC_INTREQ1_IREQUEST36_OFFSET 4
34# define INTC_INTREQ1_IREQUEST36_SIZE 1
35# define INTC_INTREQ1_IREQUEST37_OFFSET 5
36# define INTC_INTREQ1_IREQUEST37_SIZE 1
37#define INTC_INTPR2 0x8
38# define INTC_INTPR2_INTLEV_OFFSET 30
39# define INTC_INTPR2_INTLEV_SIZE 2
40# define INTC_INTPR2_OFFSET_OFFSET 0
41# define INTC_INTPR2_OFFSET_SIZE 24
42#define INTC_INTREQ2 0x108
43# define INTC_INTREQ2_IREQUEST64_OFFSET 0
44# define INTC_INTREQ2_IREQUEST64_SIZE 1
45# define INTC_INTREQ2_IREQUEST65_OFFSET 1
46# define INTC_INTREQ2_IREQUEST65_SIZE 1
47# define INTC_INTREQ2_IREQUEST66_OFFSET 2
48# define INTC_INTREQ2_IREQUEST66_SIZE 1
49# define INTC_INTREQ2_IREQUEST67_OFFSET 3
50# define INTC_INTREQ2_IREQUEST67_SIZE 1
51# define INTC_INTREQ2_IREQUEST68_OFFSET 4
52# define INTC_INTREQ2_IREQUEST68_SIZE 1
53#define INTC_INTPR3 0xc
54# define INTC_INTPR3_INTLEV_OFFSET 30
55# define INTC_INTPR3_INTLEV_SIZE 2
56# define INTC_INTPR3_OFFSET_OFFSET 0
57# define INTC_INTPR3_OFFSET_SIZE 24
58#define INTC_INTREQ3 0x10c
59# define INTC_INTREQ3_IREQUEST96_OFFSET 0
60# define INTC_INTREQ3_IREQUEST96_SIZE 1
61#define INTC_INTPR4 0x10
62# define INTC_INTPR4_INTLEV_OFFSET 30
63# define INTC_INTPR4_INTLEV_SIZE 2
64# define INTC_INTPR4_OFFSET_OFFSET 0
65# define INTC_INTPR4_OFFSET_SIZE 24
66#define INTC_INTREQ4 0x110
67# define INTC_INTREQ4_IREQUEST128_OFFSET 0
68# define INTC_INTREQ4_IREQUEST128_SIZE 1
69#define INTC_INTPR5 0x14
70# define INTC_INTPR5_INTLEV_OFFSET 30
71# define INTC_INTPR5_INTLEV_SIZE 2
72# define INTC_INTPR5_OFFSET_OFFSET 0
73# define INTC_INTPR5_OFFSET_SIZE 24
74#define INTC_INTREQ5 0x114
75# define INTC_INTREQ5_IREQUEST160_OFFSET 0
76# define INTC_INTREQ5_IREQUEST160_SIZE 1
77#define INTC_INTPR6 0x18
78# define INTC_INTPR6_INTLEV_OFFSET 30
79# define INTC_INTPR6_INTLEV_SIZE 2
80# define INTC_INTPR6_OFFSET_OFFSET 0
81# define INTC_INTPR6_OFFSET_SIZE 24
82#define INTC_INTREQ6 0x118
83# define INTC_INTREQ6_IREQUEST192_OFFSET 0
84# define INTC_INTREQ6_IREQUEST192_SIZE 1
85#define INTC_INTPR7 0x1c
86# define INTC_INTPR7_INTLEV_OFFSET 30
87# define INTC_INTPR7_INTLEV_SIZE 2
88# define INTC_INTPR7_OFFSET_OFFSET 0
89# define INTC_INTPR7_OFFSET_SIZE 24
90#define INTC_INTREQ7 0x11c
91# define INTC_INTREQ7_IREQUEST224_OFFSET 0
92# define INTC_INTREQ7_IREQUEST224_SIZE 1
93#define INTC_INTPR8 0x20
94# define INTC_INTPR8_INTLEV_OFFSET 30
95# define INTC_INTPR8_INTLEV_SIZE 2
96# define INTC_INTPR8_OFFSET_OFFSET 0
97# define INTC_INTPR8_OFFSET_SIZE 24
98#define INTC_INTREQ8 0x120
99# define INTC_INTREQ8_IREQUEST256_OFFSET 0
100# define INTC_INTREQ8_IREQUEST256_SIZE 1
101#define INTC_INTPR9 0x24
102# define INTC_INTPR9_INTLEV_OFFSET 30
103# define INTC_INTPR9_INTLEV_SIZE 2
104# define INTC_INTPR9_OFFSET_OFFSET 0
105# define INTC_INTPR9_OFFSET_SIZE 24
106#define INTC_INTREQ9 0x124
107# define INTC_INTREQ9_IREQUEST288_OFFSET 0
108# define INTC_INTREQ9_IREQUEST288_SIZE 1
109#define INTC_INTPR10 0x28
110# define INTC_INTPR10_INTLEV_OFFSET 30
111# define INTC_INTPR10_INTLEV_SIZE 2
112# define INTC_INTPR10_OFFSET_OFFSET 0
113# define INTC_INTPR10_OFFSET_SIZE 24
114#define INTC_INTREQ10 0x128
115# define INTC_INTREQ10_IREQUEST320_OFFSET 0
116# define INTC_INTREQ10_IREQUEST320_SIZE 1
117#define INTC_INTPR11 0x2c
118# define INTC_INTPR11_INTLEV_OFFSET 30
119# define INTC_INTPR11_INTLEV_SIZE 2
120# define INTC_INTPR11_OFFSET_OFFSET 0
121# define INTC_INTPR11_OFFSET_SIZE 24
122#define INTC_INTREQ11 0x12c
123# define INTC_INTREQ11_IREQUEST352_OFFSET 0
124# define INTC_INTREQ11_IREQUEST352_SIZE 1
125#define INTC_INTPR12 0x30
126# define INTC_INTPR12_INTLEV_OFFSET 30
127# define INTC_INTPR12_INTLEV_SIZE 2
128# define INTC_INTPR12_OFFSET_OFFSET 0
129# define INTC_INTPR12_OFFSET_SIZE 24
130#define INTC_INTREQ12 0x130
131# define INTC_INTREQ12_IREQUEST384_OFFSET 0
132# define INTC_INTREQ12_IREQUEST384_SIZE 1
133#define INTC_INTPR13 0x34
134# define INTC_INTPR13_INTLEV_OFFSET 30
135# define INTC_INTPR13_INTLEV_SIZE 2
136# define INTC_INTPR13_OFFSET_OFFSET 0
137# define INTC_INTPR13_OFFSET_SIZE 24
138#define INTC_INTREQ13 0x134
139# define INTC_INTREQ13_IREQUEST416_OFFSET 0
140# define INTC_INTREQ13_IREQUEST416_SIZE 1
141#define INTC_INTPR14 0x38
142# define INTC_INTPR14_INTLEV_OFFSET 30
143# define INTC_INTPR14_INTLEV_SIZE 2
144# define INTC_INTPR14_OFFSET_OFFSET 0
145# define INTC_INTPR14_OFFSET_SIZE 24
146#define INTC_INTREQ14 0x138
147# define INTC_INTREQ14_IREQUEST448_OFFSET 0
148# define INTC_INTREQ14_IREQUEST448_SIZE 1
149#define INTC_INTPR15 0x3c
150# define INTC_INTPR15_INTLEV_OFFSET 30
151# define INTC_INTPR15_INTLEV_SIZE 2
152# define INTC_INTPR15_OFFSET_OFFSET 0
153# define INTC_INTPR15_OFFSET_SIZE 24
154#define INTC_INTREQ15 0x13c
155# define INTC_INTREQ15_IREQUEST480_OFFSET 0
156# define INTC_INTREQ15_IREQUEST480_SIZE 1
157#define INTC_INTPR16 0x40
158# define INTC_INTPR16_INTLEV_OFFSET 30
159# define INTC_INTPR16_INTLEV_SIZE 2
160# define INTC_INTPR16_OFFSET_OFFSET 0
161# define INTC_INTPR16_OFFSET_SIZE 24
162#define INTC_INTREQ16 0x140
163# define INTC_INTREQ16_IREQUEST512_OFFSET 0
164# define INTC_INTREQ16_IREQUEST512_SIZE 1
165#define INTC_INTPR17 0x44
166# define INTC_INTPR17_INTLEV_OFFSET 30
167# define INTC_INTPR17_INTLEV_SIZE 2
168# define INTC_INTPR17_OFFSET_OFFSET 0
169# define INTC_INTPR17_OFFSET_SIZE 24
170#define INTC_INTREQ17 0x144
171# define INTC_INTREQ17_IREQUEST544_OFFSET 0
172# define INTC_INTREQ17_IREQUEST544_SIZE 1
173#define INTC_INTPR18 0x48
174# define INTC_INTPR18_INTLEV_OFFSET 30
175# define INTC_INTPR18_INTLEV_SIZE 2
176# define INTC_INTPR18_OFFSET_OFFSET 0
177# define INTC_INTPR18_OFFSET_SIZE 24
178#define INTC_INTREQ18 0x148
179# define INTC_INTREQ18_IREQUEST576_OFFSET 0
180# define INTC_INTREQ18_IREQUEST576_SIZE 1
181#define INTC_INTPR19 0x4c
182# define INTC_INTPR19_INTLEV_OFFSET 30
183# define INTC_INTPR19_INTLEV_SIZE 2
184# define INTC_INTPR19_OFFSET_OFFSET 0
185# define INTC_INTPR19_OFFSET_SIZE 24
186#define INTC_INTREQ19 0x14c
187# define INTC_INTREQ19_IREQUEST608_OFFSET 0
188# define INTC_INTREQ19_IREQUEST608_SIZE 1
189# define INTC_INTREQ19_IREQUEST609_OFFSET 1
190# define INTC_INTREQ19_IREQUEST609_SIZE 1
191# define INTC_INTREQ19_IREQUEST610_OFFSET 2
192# define INTC_INTREQ19_IREQUEST610_SIZE 1
193# define INTC_INTREQ19_IREQUEST611_OFFSET 3
194# define INTC_INTREQ19_IREQUEST611_SIZE 1
195#define INTC_INTPR20 0x50
196# define INTC_INTPR20_INTLEV_OFFSET 30
197# define INTC_INTPR20_INTLEV_SIZE 2
198# define INTC_INTPR20_OFFSET_OFFSET 0
199# define INTC_INTPR20_OFFSET_SIZE 24
200#define INTC_INTREQ20 0x150
201# define INTC_INTREQ20_IREQUEST640_OFFSET 0
202# define INTC_INTREQ20_IREQUEST640_SIZE 1
203#define INTC_INTPR21 0x54
204# define INTC_INTPR21_INTLEV_OFFSET 30
205# define INTC_INTPR21_INTLEV_SIZE 2
206# define INTC_INTPR21_OFFSET_OFFSET 0
207# define INTC_INTPR21_OFFSET_SIZE 24
208#define INTC_INTREQ21 0x154
209# define INTC_INTREQ21_IREQUEST672_OFFSET 0
210# define INTC_INTREQ21_IREQUEST672_SIZE 1
211#define INTC_INTPR22 0x58
212# define INTC_INTPR22_INTLEV_OFFSET 30
213# define INTC_INTPR22_INTLEV_SIZE 2
214# define INTC_INTPR22_OFFSET_OFFSET 0
215# define INTC_INTPR22_OFFSET_SIZE 24
216#define INTC_INTREQ22 0x158
217# define INTC_INTREQ22_IREQUEST704_OFFSET 0
218# define INTC_INTREQ22_IREQUEST704_SIZE 1
219# define INTC_INTREQ22_IREQUEST705_OFFSET 1
220# define INTC_INTREQ22_IREQUEST705_SIZE 1
221# define INTC_INTREQ22_IREQUEST706_OFFSET 2
222# define INTC_INTREQ22_IREQUEST706_SIZE 1
223#define INTC_INTPR23 0x5c
224# define INTC_INTPR23_INTLEV_OFFSET 30
225# define INTC_INTPR23_INTLEV_SIZE 2
226# define INTC_INTPR23_OFFSET_OFFSET 0
227# define INTC_INTPR23_OFFSET_SIZE 24
228#define INTC_INTREQ23 0x15c
229# define INTC_INTREQ23_IREQUEST736_OFFSET 0
230# define INTC_INTREQ23_IREQUEST736_SIZE 1
231# define INTC_INTREQ23_IREQUEST737_OFFSET 1
232# define INTC_INTREQ23_IREQUEST737_SIZE 1
233# define INTC_INTREQ23_IREQUEST738_OFFSET 2
234# define INTC_INTREQ23_IREQUEST738_SIZE 1
235#define INTC_INTPR24 0x60
236# define INTC_INTPR24_INTLEV_OFFSET 30
237# define INTC_INTPR24_INTLEV_SIZE 2
238# define INTC_INTPR24_OFFSET_OFFSET 0
239# define INTC_INTPR24_OFFSET_SIZE 24
240#define INTC_INTREQ24 0x160
241# define INTC_INTREQ24_IREQUEST768_OFFSET 0
242# define INTC_INTREQ24_IREQUEST768_SIZE 1
243#define INTC_INTPR25 0x64
244# define INTC_INTPR25_INTLEV_OFFSET 30
245# define INTC_INTPR25_INTLEV_SIZE 2
246# define INTC_INTPR25_OFFSET_OFFSET 0
247# define INTC_INTPR25_OFFSET_SIZE 24
248#define INTC_INTREQ25 0x164
249# define INTC_INTREQ25_IREQUEST800_OFFSET 0
250# define INTC_INTREQ25_IREQUEST800_SIZE 1
251#define INTC_INTPR26 0x68
252# define INTC_INTPR26_INTLEV_OFFSET 30
253# define INTC_INTPR26_INTLEV_SIZE 2
254# define INTC_INTPR26_OFFSET_OFFSET 0
255# define INTC_INTPR26_OFFSET_SIZE 24
256#define INTC_INTREQ26 0x168
257# define INTC_INTREQ26_IREQUEST832_OFFSET 0
258# define INTC_INTREQ26_IREQUEST832_SIZE 1
259#define INTC_INTPR27 0x6c
260# define INTC_INTPR27_INTLEV_OFFSET 30
261# define INTC_INTPR27_INTLEV_SIZE 2
262# define INTC_INTPR27_OFFSET_OFFSET 0
263# define INTC_INTPR27_OFFSET_SIZE 24
264#define INTC_INTREQ27 0x16c
265# define INTC_INTREQ27_IREQUEST864_OFFSET 0
266# define INTC_INTREQ27_IREQUEST864_SIZE 1
267#define INTC_INTPR28 0x70
268# define INTC_INTPR28_INTLEV_OFFSET 30
269# define INTC_INTPR28_INTLEV_SIZE 2
270# define INTC_INTPR28_OFFSET_OFFSET 0
271# define INTC_INTPR28_OFFSET_SIZE 24
272#define INTC_INTREQ28 0x170
273# define INTC_INTREQ28_IREQUEST896_OFFSET 0
274# define INTC_INTREQ28_IREQUEST896_SIZE 1
275#define INTC_INTPR29 0x74
276# define INTC_INTPR29_INTLEV_OFFSET 30
277# define INTC_INTPR29_INTLEV_SIZE 2
278# define INTC_INTPR29_OFFSET_OFFSET 0
279# define INTC_INTPR29_OFFSET_SIZE 24
280#define INTC_INTREQ29 0x174
281# define INTC_INTREQ29_IREQUEST928_OFFSET 0
282# define INTC_INTREQ29_IREQUEST928_SIZE 1
283#define INTC_INTPR30 0x78
284# define INTC_INTPR30_INTLEV_OFFSET 30
285# define INTC_INTPR30_INTLEV_SIZE 2
286# define INTC_INTPR30_OFFSET_OFFSET 0
287# define INTC_INTPR30_OFFSET_SIZE 24
288#define INTC_INTREQ30 0x178
289# define INTC_INTREQ30_IREQUEST960_OFFSET 0
290# define INTC_INTREQ30_IREQUEST960_SIZE 1
291#define INTC_INTPR31 0x7c
292# define INTC_INTPR31_INTLEV_OFFSET 30
293# define INTC_INTPR31_INTLEV_SIZE 2
294# define INTC_INTPR31_OFFSET_OFFSET 0
295# define INTC_INTPR31_OFFSET_SIZE 24
296#define INTC_INTREQ31 0x17c
297# define INTC_INTREQ31_IREQUEST992_OFFSET 0
298# define INTC_INTREQ31_IREQUEST992_SIZE 1
299#define INTC_INTPR32 0x80
300# define INTC_INTPR32_INTLEV_OFFSET 30
301# define INTC_INTPR32_INTLEV_SIZE 2
302# define INTC_INTPR32_OFFSET_OFFSET 0
303# define INTC_INTPR32_OFFSET_SIZE 24
304#define INTC_INTREQ32 0x180
305# define INTC_INTREQ32_IREQUEST1024_OFFSET 0
306# define INTC_INTREQ32_IREQUEST1024_SIZE 1
307#define INTC_INTCAUSE0 0x20c
308# define INTC_INTCAUSE0_CAUSEGRP_OFFSET 0
309# define INTC_INTCAUSE0_CAUSEGRP_SIZE 6
310#define INTC_INTCAUSE1 0x208
311# define INTC_INTCAUSE1_CAUSEGRP_OFFSET 0
312# define INTC_INTCAUSE1_CAUSEGRP_SIZE 6
313#define INTC_INTCAUSE2 0x204
314# define INTC_INTCAUSE2_CAUSEGRP_OFFSET 0
315# define INTC_INTCAUSE2_CAUSEGRP_SIZE 6
316#define INTC_INTCAUSE3 0x200
317# define INTC_INTCAUSE3_CAUSEGRP_OFFSET 0
318# define INTC_INTCAUSE3_CAUSEGRP_SIZE 6
319
320#define INTC_BIT(name) (1 << INTC_##name##_OFFSET)
321#define INTC_MKBF(name, value) (((value) & ((1 << INTC_##name##_SIZE) - 1)) << INTC_##name##_OFFSET)
322#define INTC_GETBF(name, value) (((value) >> INTC_##name##_OFFSET) & ((1 << INTC_##name##_SIZE) - 1))
323
324#define intc_readl(port,reg) readl((port)->regs + INTC_##reg)
325#define intc_writel(port,reg,value) writel((value), (port)->regs + INTC_##reg)
326
327#endif /* __ASM_AVR32_PERIHP_INTC_H__ */
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
new file mode 100644
index 000000000000..d3aabfca8598
--- /dev/null
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -0,0 +1,118 @@
1/*
2 * Atmel PIO2 Port Multiplexer support
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/clk.h>
12#include <linux/debugfs.h>
13#include <linux/fs.h>
14#include <linux/platform_device.h>
15
16#include <asm/io.h>
17
18#include <asm/arch/portmux.h>
19
20#include "pio.h"
21
22#define MAX_NR_PIO_DEVICES 8
23
24struct pio_device {
25 void __iomem *regs;
26 const struct platform_device *pdev;
27 struct clk *clk;
28 u32 alloc_mask;
29 char name[32];
30};
31
32static struct pio_device pio_dev[MAX_NR_PIO_DEVICES];
33
34void portmux_set_func(unsigned int portmux_id, unsigned int pin_id,
35 unsigned int function_id)
36{
37 struct pio_device *pio;
38 u32 mask = 1 << pin_id;
39
40 BUG_ON(portmux_id >= MAX_NR_PIO_DEVICES);
41
42 pio = &pio_dev[portmux_id];
43
44 if (function_id)
45 pio_writel(pio, BSR, mask);
46 else
47 pio_writel(pio, ASR, mask);
48 pio_writel(pio, PDR, mask);
49}
50
51static int __init pio_probe(struct platform_device *pdev)
52{
53 struct pio_device *pio = NULL;
54
55 BUG_ON(pdev->id >= MAX_NR_PIO_DEVICES);
56 pio = &pio_dev[pdev->id];
57 BUG_ON(!pio->regs);
58
59 /* TODO: Interrupts */
60
61 platform_set_drvdata(pdev, pio);
62
63 printk(KERN_INFO "%s: Atmel Port Multiplexer at 0x%p (irq %d)\n",
64 pio->name, pio->regs, platform_get_irq(pdev, 0));
65
66 return 0;
67}
68
69static struct platform_driver pio_driver = {
70 .probe = pio_probe,
71 .driver = {
72 .name = "pio",
73 },
74};
75
76static int __init pio_init(void)
77{
78 return platform_driver_register(&pio_driver);
79}
80subsys_initcall(pio_init);
81
82void __init at32_init_pio(struct platform_device *pdev)
83{
84 struct resource *regs;
85 struct pio_device *pio;
86
87 if (pdev->id > MAX_NR_PIO_DEVICES) {
88 dev_err(&pdev->dev, "only %d PIO devices supported\n",
89 MAX_NR_PIO_DEVICES);
90 return;
91 }
92
93 pio = &pio_dev[pdev->id];
94 snprintf(pio->name, sizeof(pio->name), "pio%d", pdev->id);
95
96 regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
97 if (!regs) {
98 dev_err(&pdev->dev, "no mmio resource defined\n");
99 return;
100 }
101
102 pio->clk = clk_get(&pdev->dev, "mck");
103 if (IS_ERR(pio->clk))
104 /*
105 * This is a fatal error, but if we continue we might
106 * be so lucky that we manage to initialize the
107 * console and display this message...
108 */
109 dev_err(&pdev->dev, "no mck clock defined\n");
110 else
111 clk_enable(pio->clk);
112
113 pio->pdev = pdev;
114 pio->regs = ioremap(regs->start, regs->end - regs->start + 1);
115
116 pio_writel(pio, ODR, ~0UL);
117 pio_writel(pio, PER, ~0UL);
118}
diff --git a/arch/avr32/mach-at32ap/pio.h b/arch/avr32/mach-at32ap/pio.h
new file mode 100644
index 000000000000..cfea12351599
--- /dev/null
+++ b/arch/avr32/mach-at32ap/pio.h
@@ -0,0 +1,178 @@
1/*
2 * Atmel PIO2 Port Multiplexer support
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#ifndef __ARCH_AVR32_AT32AP_PIO_H__
11#define __ARCH_AVR32_AT32AP_PIO_H__
12
13/* PIO register offsets */
14#define PIO_PER 0x0000
15#define PIO_PDR 0x0004
16#define PIO_PSR 0x0008
17#define PIO_OER 0x0010
18#define PIO_ODR 0x0014
19#define PIO_OSR 0x0018
20#define PIO_IFER 0x0020
21#define PIO_IFDR 0x0024
22#define PIO_ISFR 0x0028
23#define PIO_SODR 0x0030
24#define PIO_CODR 0x0034
25#define PIO_ODSR 0x0038
26#define PIO_PDSR 0x003c
27#define PIO_IER 0x0040
28#define PIO_IDR 0x0044
29#define PIO_IMR 0x0048
30#define PIO_ISR 0x004c
31#define PIO_MDER 0x0050
32#define PIO_MDDR 0x0054
33#define PIO_MDSR 0x0058
34#define PIO_PUDR 0x0060
35#define PIO_PUER 0x0064
36#define PIO_PUSR 0x0068
37#define PIO_ASR 0x0070
38#define PIO_BSR 0x0074
39#define PIO_ABSR 0x0078
40#define PIO_OWER 0x00a0
41#define PIO_OWDR 0x00a4
42#define PIO_OWSR 0x00a8
43
44/* Bitfields in PER */
45
46/* Bitfields in PDR */
47
48/* Bitfields in PSR */
49
50/* Bitfields in OER */
51
52/* Bitfields in ODR */
53
54/* Bitfields in OSR */
55
56/* Bitfields in IFER */
57
58/* Bitfields in IFDR */
59
60/* Bitfields in ISFR */
61
62/* Bitfields in SODR */
63
64/* Bitfields in CODR */
65
66/* Bitfields in ODSR */
67
68/* Bitfields in PDSR */
69
70/* Bitfields in IER */
71
72/* Bitfields in IDR */
73
74/* Bitfields in IMR */
75
76/* Bitfields in ISR */
77
78/* Bitfields in MDER */
79
80/* Bitfields in MDDR */
81
82/* Bitfields in MDSR */
83
84/* Bitfields in PUDR */
85
86/* Bitfields in PUER */
87
88/* Bitfields in PUSR */
89
90/* Bitfields in ASR */
91
92/* Bitfields in BSR */
93
94/* Bitfields in ABSR */
95#define PIO_P0_OFFSET 0
96#define PIO_P0_SIZE 1
97#define PIO_P1_OFFSET 1
98#define PIO_P1_SIZE 1
99#define PIO_P2_OFFSET 2
100#define PIO_P2_SIZE 1
101#define PIO_P3_OFFSET 3
102#define PIO_P3_SIZE 1
103#define PIO_P4_OFFSET 4
104#define PIO_P4_SIZE 1
105#define PIO_P5_OFFSET 5
106#define PIO_P5_SIZE 1
107#define PIO_P6_OFFSET 6
108#define PIO_P6_SIZE 1
109#define PIO_P7_OFFSET 7
110#define PIO_P7_SIZE 1
111#define PIO_P8_OFFSET 8
112#define PIO_P8_SIZE 1
113#define PIO_P9_OFFSET 9
114#define PIO_P9_SIZE 1
115#define PIO_P10_OFFSET 10
116#define PIO_P10_SIZE 1
117#define PIO_P11_OFFSET 11
118#define PIO_P11_SIZE 1
119#define PIO_P12_OFFSET 12
120#define PIO_P12_SIZE 1
121#define PIO_P13_OFFSET 13
122#define PIO_P13_SIZE 1
123#define PIO_P14_OFFSET 14
124#define PIO_P14_SIZE 1
125#define PIO_P15_OFFSET 15
126#define PIO_P15_SIZE 1
127#define PIO_P16_OFFSET 16
128#define PIO_P16_SIZE 1
129#define PIO_P17_OFFSET 17
130#define PIO_P17_SIZE 1
131#define PIO_P18_OFFSET 18
132#define PIO_P18_SIZE 1
133#define PIO_P19_OFFSET 19
134#define PIO_P19_SIZE 1
135#define PIO_P20_OFFSET 20
136#define PIO_P20_SIZE 1
137#define PIO_P21_OFFSET 21
138#define PIO_P21_SIZE 1
139#define PIO_P22_OFFSET 22
140#define PIO_P22_SIZE 1
141#define PIO_P23_OFFSET 23
142#define PIO_P23_SIZE 1
143#define PIO_P24_OFFSET 24
144#define PIO_P24_SIZE 1
145#define PIO_P25_OFFSET 25
146#define PIO_P25_SIZE 1
147#define PIO_P26_OFFSET 26
148#define PIO_P26_SIZE 1
149#define PIO_P27_OFFSET 27
150#define PIO_P27_SIZE 1
151#define PIO_P28_OFFSET 28
152#define PIO_P28_SIZE 1
153#define PIO_P29_OFFSET 29
154#define PIO_P29_SIZE 1
155#define PIO_P30_OFFSET 30
156#define PIO_P30_SIZE 1
157#define PIO_P31_OFFSET 31
158#define PIO_P31_SIZE 1
159
160/* Bitfields in OWER */
161
162/* Bitfields in OWDR */
163
164/* Bitfields in OWSR */
165
166/* Bit manipulation macros */
167#define PIO_BIT(name) (1 << PIO_##name##_OFFSET)
168#define PIO_BF(name,value) (((value) & ((1 << PIO_##name##_SIZE) - 1)) << PIO_##name##_OFFSET)
169#define PIO_BFEXT(name,value) (((value) >> PIO_##name##_OFFSET) & ((1 << PIO_##name##_SIZE) - 1))
170#define PIO_BFINS(name,value,old) (((old) & ~(((1 << PIO_##name##_SIZE) - 1) << PIO_##name##_OFFSET)) | PIO_BF(name,value))
171
172/* Register access macros */
173#define pio_readl(port,reg) readl((port)->regs + PIO_##reg)
174#define pio_writel(port,reg,value) writel((value), (port)->regs + PIO_##reg)
175
176void at32_init_pio(struct platform_device *pdev);
177
178#endif /* __ARCH_AVR32_AT32AP_PIO_H__ */
diff --git a/arch/avr32/mach-at32ap/sm.c b/arch/avr32/mach-at32ap/sm.c
new file mode 100644
index 000000000000..03306eb0345e
--- /dev/null
+++ b/arch/avr32/mach-at32ap/sm.c
@@ -0,0 +1,289 @@
1/*
2 * System Manager driver for AT32AP CPUs
3 *
4 * Copyright (C) 2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/errno.h>
12#include <linux/init.h>
13#include <linux/interrupt.h>
14#include <linux/kernel.h>
15#include <linux/platform_device.h>
16#include <linux/random.h>
17#include <linux/spinlock.h>
18
19#include <asm/intc.h>
20#include <asm/io.h>
21#include <asm/irq.h>
22
23#include <asm/arch/sm.h>
24
25#include "sm.h"
26
27#define SM_EIM_IRQ_RESOURCE 1
28#define SM_PM_IRQ_RESOURCE 2
29#define SM_RTC_IRQ_RESOURCE 3
30
31#define to_eim(irqc) container_of(irqc, struct at32_sm, irqc)
32
33struct at32_sm system_manager;
34
35int __init at32_sm_init(void)
36{
37 struct resource *regs;
38 struct at32_sm *sm = &system_manager;
39 int ret = -ENXIO;
40
41 regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0);
42 if (!regs)
43 goto fail;
44
45 spin_lock_init(&sm->lock);
46 sm->pdev = &at32_sm_device;
47
48 ret = -ENOMEM;
49 sm->regs = ioremap(regs->start, regs->end - regs->start + 1);
50 if (!sm->regs)
51 goto fail;
52
53 return 0;
54
55fail:
56 printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret);
57 return ret;
58}
59
60/*
61 * External Interrupt Module (EIM).
62 *
63 * EIM gets level- or edge-triggered interrupts of either polarity
64 * from the outside and converts it to active-high level-triggered
65 * interrupts that the internal interrupt controller can handle. EIM
66 * also provides masking/unmasking of interrupts, as well as
67 * acknowledging of edge-triggered interrupts.
68 */
69
70static irqreturn_t spurious_eim_interrupt(int irq, void *dev_id,
71 struct pt_regs *regs)
72{
73 printk(KERN_WARNING "Spurious EIM interrupt %d\n", irq);
74 disable_irq(irq);
75 return IRQ_NONE;
76}
77
78static struct irqaction eim_spurious_action = {
79 .handler = spurious_eim_interrupt,
80};
81
82static irqreturn_t eim_handle_irq(int irq, void *dev_id, struct pt_regs *regs)
83{
84 struct irq_controller * irqc = dev_id;
85 struct at32_sm *sm = to_eim(irqc);
86 unsigned long pending;
87
88 /*
89 * No need to disable interrupts globally. The interrupt
90 * level relevant to this group must be masked all the time,
91 * so we know that this particular EIM instance will not be
92 * re-entered.
93 */
94 spin_lock(&sm->lock);
95
96 pending = intc_get_pending(sm->irqc.irq_group);
97 if (unlikely(!pending)) {
98 printk(KERN_ERR "EIM (group %u): No interrupts pending!\n",
99 sm->irqc.irq_group);
100 goto unlock;
101 }
102
103 do {
104 struct irqaction *action;
105 unsigned int i;
106
107 i = fls(pending) - 1;
108 pending &= ~(1 << i);
109 action = sm->action[i];
110
111 /* Acknowledge the interrupt */
112 sm_writel(sm, EIM_ICR, 1 << i);
113
114 spin_unlock(&sm->lock);
115
116 if (action->flags & SA_INTERRUPT)
117 local_irq_disable();
118 action->handler(sm->irqc.first_irq + i, action->dev_id, regs);
119 local_irq_enable();
120 spin_lock(&sm->lock);
121 if (action->flags & SA_SAMPLE_RANDOM)
122 add_interrupt_randomness(sm->irqc.first_irq + i);
123 } while (pending);
124
125unlock:
126 spin_unlock(&sm->lock);
127 return IRQ_HANDLED;
128}
129
130static void eim_mask(struct irq_controller *irqc, unsigned int irq)
131{
132 struct at32_sm *sm = to_eim(irqc);
133 unsigned int i;
134
135 i = irq - sm->irqc.first_irq;
136 sm_writel(sm, EIM_IDR, 1 << i);
137}
138
139static void eim_unmask(struct irq_controller *irqc, unsigned int irq)
140{
141 struct at32_sm *sm = to_eim(irqc);
142 unsigned int i;
143
144 i = irq - sm->irqc.first_irq;
145 sm_writel(sm, EIM_IER, 1 << i);
146}
147
148static int eim_setup(struct irq_controller *irqc, unsigned int irq,
149 struct irqaction *action)
150{
151 struct at32_sm *sm = to_eim(irqc);
152 sm->action[irq - sm->irqc.first_irq] = action;
153 /* Acknowledge earlier interrupts */
154 sm_writel(sm, EIM_ICR, (1<<(irq - sm->irqc.first_irq)));
155 eim_unmask(irqc, irq);
156 return 0;
157}
158
159static void eim_free(struct irq_controller *irqc, unsigned int irq,
160 void *dev)
161{
162 struct at32_sm *sm = to_eim(irqc);
163 eim_mask(irqc, irq);
164 sm->action[irq - sm->irqc.first_irq] = &eim_spurious_action;
165}
166
167static int eim_set_type(struct irq_controller *irqc, unsigned int irq,
168 unsigned int type)
169{
170 struct at32_sm *sm = to_eim(irqc);
171 unsigned long flags;
172 u32 value, pattern;
173
174 spin_lock_irqsave(&sm->lock, flags);
175
176 pattern = 1 << (irq - sm->irqc.first_irq);
177
178 value = sm_readl(sm, EIM_MODE);
179 if (type & IRQ_TYPE_LEVEL)
180 value |= pattern;
181 else
182 value &= ~pattern;
183 sm_writel(sm, EIM_MODE, value);
184 value = sm_readl(sm, EIM_EDGE);
185 if (type & IRQ_EDGE_RISING)
186 value |= pattern;
187 else
188 value &= ~pattern;
189 sm_writel(sm, EIM_EDGE, value);
190 value = sm_readl(sm, EIM_LEVEL);
191 if (type & IRQ_LEVEL_HIGH)
192 value |= pattern;
193 else
194 value &= ~pattern;
195 sm_writel(sm, EIM_LEVEL, value);
196
197 spin_unlock_irqrestore(&sm->lock, flags);
198
199 return 0;
200}
201
202static unsigned int eim_get_type(struct irq_controller *irqc,
203 unsigned int irq)
204{
205 struct at32_sm *sm = to_eim(irqc);
206 unsigned long flags;
207 unsigned int type = 0;
208 u32 mode, edge, level, pattern;
209
210 pattern = 1 << (irq - sm->irqc.first_irq);
211
212 spin_lock_irqsave(&sm->lock, flags);
213 mode = sm_readl(sm, EIM_MODE);
214 edge = sm_readl(sm, EIM_EDGE);
215 level = sm_readl(sm, EIM_LEVEL);
216 spin_unlock_irqrestore(&sm->lock, flags);
217
218 if (mode & pattern)
219 type |= IRQ_TYPE_LEVEL;
220 if (edge & pattern)
221 type |= IRQ_EDGE_RISING;
222 if (level & pattern)
223 type |= IRQ_LEVEL_HIGH;
224
225 return type;
226}
227
228static struct irq_controller_class eim_irq_class = {
229 .typename = "EIM",
230 .handle = eim_handle_irq,
231 .setup = eim_setup,
232 .free = eim_free,
233 .mask = eim_mask,
234 .unmask = eim_unmask,
235 .set_type = eim_set_type,
236 .get_type = eim_get_type,
237};
238
239static int __init eim_init(void)
240{
241 struct at32_sm *sm = &system_manager;
242 unsigned int i;
243 u32 pattern;
244 int ret;
245
246 /*
247 * The EIM is really the same module as SM, so register
248 * mapping, etc. has been taken care of already.
249 */
250
251 /*
252 * Find out how many interrupt lines that are actually
253 * implemented in hardware.
254 */
255 sm_writel(sm, EIM_IDR, ~0UL);
256 sm_writel(sm, EIM_MODE, ~0UL);
257 pattern = sm_readl(sm, EIM_MODE);
258 sm->irqc.nr_irqs = fls(pattern);
259
260 ret = -ENOMEM;
261 sm->action = kmalloc(sizeof(*sm->action) * sm->irqc.nr_irqs,
262 GFP_KERNEL);
263 if (!sm->action)
264 goto out;
265
266 for (i = 0; i < sm->irqc.nr_irqs; i++)
267 sm->action[i] = &eim_spurious_action;
268
269 spin_lock_init(&sm->lock);
270 sm->irqc.irq_group = sm->pdev->resource[SM_EIM_IRQ_RESOURCE].start;
271 sm->irqc.class = &eim_irq_class;
272
273 ret = intc_register_controller(&sm->irqc);
274 if (ret < 0)
275 goto out_free_actions;
276
277 printk("EIM: External Interrupt Module at 0x%p, IRQ group %u\n",
278 sm->regs, sm->irqc.irq_group);
279 printk("EIM: Handling %u external IRQs, starting with IRQ%u\n",
280 sm->irqc.nr_irqs, sm->irqc.first_irq);
281
282 return 0;
283
284out_free_actions:
285 kfree(sm->action);
286out:
287 return ret;
288}
289arch_initcall(eim_init);
diff --git a/arch/avr32/mach-at32ap/sm.h b/arch/avr32/mach-at32ap/sm.h
new file mode 100644
index 000000000000..27565822ae2a
--- /dev/null
+++ b/arch/avr32/mach-at32ap/sm.h
@@ -0,0 +1,240 @@
1/*
2 * Register definitions for SM
3 *
4 * System Manager
5 */
6#ifndef __ASM_AVR32_SM_H__
7#define __ASM_AVR32_SM_H__
8
9/* SM register offsets */
10#define SM_PM_MCCTRL 0x0000
11#define SM_PM_CKSEL 0x0004
12#define SM_PM_CPU_MASK 0x0008
13#define SM_PM_HSB_MASK 0x000c
14#define SM_PM_PBA_MASK 0x0010
15#define SM_PM_PBB_MASK 0x0014
16#define SM_PM_PLL0 0x0020
17#define SM_PM_PLL1 0x0024
18#define SM_PM_VCTRL 0x0030
19#define SM_PM_VMREF 0x0034
20#define SM_PM_VMV 0x0038
21#define SM_PM_IER 0x0040
22#define SM_PM_IDR 0x0044
23#define SM_PM_IMR 0x0048
24#define SM_PM_ISR 0x004c
25#define SM_PM_ICR 0x0050
26#define SM_PM_GCCTRL 0x0060
27#define SM_RTC_CTRL 0x0080
28#define SM_RTC_VAL 0x0084
29#define SM_RTC_TOP 0x0088
30#define SM_RTC_IER 0x0090
31#define SM_RTC_IDR 0x0094
32#define SM_RTC_IMR 0x0098
33#define SM_RTC_ISR 0x009c
34#define SM_RTC_ICR 0x00a0
35#define SM_WDT_CTRL 0x00b0
36#define SM_WDT_CLR 0x00b4
37#define SM_WDT_EXT 0x00b8
38#define SM_RC_RCAUSE 0x00c0
39#define SM_EIM_IER 0x0100
40#define SM_EIM_IDR 0x0104
41#define SM_EIM_IMR 0x0108
42#define SM_EIM_ISR 0x010c
43#define SM_EIM_ICR 0x0110
44#define SM_EIM_MODE 0x0114
45#define SM_EIM_EDGE 0x0118
46#define SM_EIM_LEVEL 0x011c
47#define SM_EIM_TEST 0x0120
48#define SM_EIM_NMIC 0x0124
49
50/* Bitfields in PM_MCCTRL */
51
52/* Bitfields in PM_CKSEL */
53#define SM_CPUSEL_OFFSET 0
54#define SM_CPUSEL_SIZE 3
55#define SM_CPUDIV_OFFSET 7
56#define SM_CPUDIV_SIZE 1
57#define SM_HSBSEL_OFFSET 8
58#define SM_HSBSEL_SIZE 3
59#define SM_HSBDIV_OFFSET 15
60#define SM_HSBDIV_SIZE 1
61#define SM_PBASEL_OFFSET 16
62#define SM_PBASEL_SIZE 3
63#define SM_PBADIV_OFFSET 23
64#define SM_PBADIV_SIZE 1
65#define SM_PBBSEL_OFFSET 24
66#define SM_PBBSEL_SIZE 3
67#define SM_PBBDIV_OFFSET 31
68#define SM_PBBDIV_SIZE 1
69
70/* Bitfields in PM_CPU_MASK */
71
72/* Bitfields in PM_HSB_MASK */
73
74/* Bitfields in PM_PBA_MASK */
75
76/* Bitfields in PM_PBB_MASK */
77
78/* Bitfields in PM_PLL0 */
79#define SM_PLLEN_OFFSET 0
80#define SM_PLLEN_SIZE 1
81#define SM_PLLOSC_OFFSET 1
82#define SM_PLLOSC_SIZE 1
83#define SM_PLLOPT_OFFSET 2
84#define SM_PLLOPT_SIZE 3
85#define SM_PLLDIV_OFFSET 8
86#define SM_PLLDIV_SIZE 8
87#define SM_PLLMUL_OFFSET 16
88#define SM_PLLMUL_SIZE 8
89#define SM_PLLCOUNT_OFFSET 24
90#define SM_PLLCOUNT_SIZE 6
91#define SM_PLLTEST_OFFSET 31
92#define SM_PLLTEST_SIZE 1
93
94/* Bitfields in PM_PLL1 */
95
96/* Bitfields in PM_VCTRL */
97#define SM_VAUTO_OFFSET 0
98#define SM_VAUTO_SIZE 1
99#define SM_PM_VCTRL_VAL_OFFSET 8
100#define SM_PM_VCTRL_VAL_SIZE 7
101
102/* Bitfields in PM_VMREF */
103#define SM_REFSEL_OFFSET 0
104#define SM_REFSEL_SIZE 4
105
106/* Bitfields in PM_VMV */
107#define SM_PM_VMV_VAL_OFFSET 0
108#define SM_PM_VMV_VAL_SIZE 8
109
110/* Bitfields in PM_IER */
111
112/* Bitfields in PM_IDR */
113
114/* Bitfields in PM_IMR */
115
116/* Bitfields in PM_ISR */
117
118/* Bitfields in PM_ICR */
119#define SM_LOCK0_OFFSET 0
120#define SM_LOCK0_SIZE 1
121#define SM_LOCK1_OFFSET 1
122#define SM_LOCK1_SIZE 1
123#define SM_WAKE_OFFSET 2
124#define SM_WAKE_SIZE 1
125#define SM_VOK_OFFSET 3
126#define SM_VOK_SIZE 1
127#define SM_VMRDY_OFFSET 4
128#define SM_VMRDY_SIZE 1
129#define SM_CKRDY_OFFSET 5
130#define SM_CKRDY_SIZE 1
131
132/* Bitfields in PM_GCCTRL */
133#define SM_OSCSEL_OFFSET 0
134#define SM_OSCSEL_SIZE 1
135#define SM_PLLSEL_OFFSET 1
136#define SM_PLLSEL_SIZE 1
137#define SM_CEN_OFFSET 2
138#define SM_CEN_SIZE 1
139#define SM_CPC_OFFSET 3
140#define SM_CPC_SIZE 1
141#define SM_DIVEN_OFFSET 4
142#define SM_DIVEN_SIZE 1
143#define SM_DIV_OFFSET 8
144#define SM_DIV_SIZE 8
145
146/* Bitfields in RTC_CTRL */
147#define SM_PCLR_OFFSET 1
148#define SM_PCLR_SIZE 1
149#define SM_TOPEN_OFFSET 2
150#define SM_TOPEN_SIZE 1
151#define SM_CLKEN_OFFSET 3
152#define SM_CLKEN_SIZE 1
153#define SM_PSEL_OFFSET 8
154#define SM_PSEL_SIZE 16
155
156/* Bitfields in RTC_VAL */
157#define SM_RTC_VAL_VAL_OFFSET 0
158#define SM_RTC_VAL_VAL_SIZE 31
159
160/* Bitfields in RTC_TOP */
161#define SM_RTC_TOP_VAL_OFFSET 0
162#define SM_RTC_TOP_VAL_SIZE 32
163
164/* Bitfields in RTC_IER */
165
166/* Bitfields in RTC_IDR */
167
168/* Bitfields in RTC_IMR */
169
170/* Bitfields in RTC_ISR */
171
172/* Bitfields in RTC_ICR */
173#define SM_TOPI_OFFSET 0
174#define SM_TOPI_SIZE 1
175
176/* Bitfields in WDT_CTRL */
177#define SM_KEY_OFFSET 24
178#define SM_KEY_SIZE 8
179
180/* Bitfields in WDT_CLR */
181
182/* Bitfields in WDT_EXT */
183
184/* Bitfields in RC_RCAUSE */
185#define SM_POR_OFFSET 0
186#define SM_POR_SIZE 1
187#define SM_BOD_OFFSET 1
188#define SM_BOD_SIZE 1
189#define SM_EXT_OFFSET 2
190#define SM_EXT_SIZE 1
191#define SM_WDT_OFFSET 3
192#define SM_WDT_SIZE 1
193#define SM_NTAE_OFFSET 4
194#define SM_NTAE_SIZE 1
195#define SM_SERP_OFFSET 5
196#define SM_SERP_SIZE 1
197
198/* Bitfields in EIM_IER */
199
200/* Bitfields in EIM_IDR */
201
202/* Bitfields in EIM_IMR */
203
204/* Bitfields in EIM_ISR */
205
206/* Bitfields in EIM_ICR */
207
208/* Bitfields in EIM_MODE */
209
210/* Bitfields in EIM_EDGE */
211#define SM_INT0_OFFSET 0
212#define SM_INT0_SIZE 1
213#define SM_INT1_OFFSET 1
214#define SM_INT1_SIZE 1
215#define SM_INT2_OFFSET 2
216#define SM_INT2_SIZE 1
217#define SM_INT3_OFFSET 3
218#define SM_INT3_SIZE 1
219
220/* Bitfields in EIM_LEVEL */
221
222/* Bitfields in EIM_TEST */
223#define SM_TESTEN_OFFSET 31
224#define SM_TESTEN_SIZE 1
225
226/* Bitfields in EIM_NMIC */
227#define SM_EN_OFFSET 0
228#define SM_EN_SIZE 1
229
230/* Bit manipulation macros */
231#define SM_BIT(name) (1 << SM_##name##_OFFSET)
232#define SM_BF(name,value) (((value) & ((1 << SM_##name##_SIZE) - 1)) << SM_##name##_OFFSET)
233#define SM_BFEXT(name,value) (((value) >> SM_##name##_OFFSET) & ((1 << SM_##name##_SIZE) - 1))
234#define SM_BFINS(name,value,old) (((old) & ~(((1 << SM_##name##_SIZE) - 1) << SM_##name##_OFFSET)) | SM_BF(name,value))
235
236/* Register access macros */
237#define sm_readl(port,reg) readl((port)->regs + SM_##reg)
238#define sm_writel(port,reg,value) writel((value), (port)->regs + SM_##reg)
239
240#endif /* __ASM_AVR32_SM_H__ */
diff --git a/arch/avr32/mm/Makefile b/arch/avr32/mm/Makefile
new file mode 100644
index 000000000000..0066491f90d4
--- /dev/null
+++ b/arch/avr32/mm/Makefile
@@ -0,0 +1,6 @@
1#
2# Makefile for the Linux/AVR32 kernel.
3#
4
5obj-y += init.o clear_page.o copy_page.o dma-coherent.o
6obj-y += ioremap.o cache.o fault.o tlb.o
diff --git a/arch/avr32/mm/cache.c b/arch/avr32/mm/cache.c
new file mode 100644
index 000000000000..450515b245a0
--- /dev/null
+++ b/arch/avr32/mm/cache.c
@@ -0,0 +1,150 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/highmem.h>
10#include <linux/unistd.h>
11
12#include <asm/cacheflush.h>
13#include <asm/cachectl.h>
14#include <asm/processor.h>
15#include <asm/uaccess.h>
16
17/*
18 * If you attempt to flush anything more than this, you need superuser
19 * privileges. The value is completely arbitrary.
20 */
21#define CACHEFLUSH_MAX_LEN 1024
22
23void invalidate_dcache_region(void *start, size_t size)
24{
25 unsigned long v, begin, end, linesz;
26
27 linesz = boot_cpu_data.dcache.linesz;
28
29 //printk("invalidate dcache: %p + %u\n", start, size);
30
31 /* You asked for it, you got it */
32 begin = (unsigned long)start & ~(linesz - 1);
33 end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
34
35 for (v = begin; v < end; v += linesz)
36 invalidate_dcache_line((void *)v);
37}
38
39void clean_dcache_region(void *start, size_t size)
40{
41 unsigned long v, begin, end, linesz;
42
43 linesz = boot_cpu_data.dcache.linesz;
44 begin = (unsigned long)start & ~(linesz - 1);
45 end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
46
47 for (v = begin; v < end; v += linesz)
48 clean_dcache_line((void *)v);
49 flush_write_buffer();
50}
51
52void flush_dcache_region(void *start, size_t size)
53{
54 unsigned long v, begin, end, linesz;
55
56 linesz = boot_cpu_data.dcache.linesz;
57 begin = (unsigned long)start & ~(linesz - 1);
58 end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
59
60 for (v = begin; v < end; v += linesz)
61 flush_dcache_line((void *)v);
62 flush_write_buffer();
63}
64
65void invalidate_icache_region(void *start, size_t size)
66{
67 unsigned long v, begin, end, linesz;
68
69 linesz = boot_cpu_data.icache.linesz;
70 begin = (unsigned long)start & ~(linesz - 1);
71 end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1);
72
73 for (v = begin; v < end; v += linesz)
74 invalidate_icache_line((void *)v);
75}
76
77static inline void __flush_icache_range(unsigned long start, unsigned long end)
78{
79 unsigned long v, linesz;
80
81 linesz = boot_cpu_data.dcache.linesz;
82 for (v = start; v < end; v += linesz) {
83 clean_dcache_line((void *)v);
84 invalidate_icache_line((void *)v);
85 }
86
87 flush_write_buffer();
88}
89
90/*
91 * This one is called after a module has been loaded.
92 */
93void flush_icache_range(unsigned long start, unsigned long end)
94{
95 unsigned long linesz;
96
97 linesz = boot_cpu_data.dcache.linesz;
98 __flush_icache_range(start & ~(linesz - 1),
99 (end + linesz - 1) & ~(linesz - 1));
100}
101
102/*
103 * This one is called from do_no_page(), do_swap_page() and install_page().
104 */
105void flush_icache_page(struct vm_area_struct *vma, struct page *page)
106{
107 if (vma->vm_flags & VM_EXEC) {
108 void *v = kmap(page);
109 __flush_icache_range((unsigned long)v, (unsigned long)v + PAGE_SIZE);
110 kunmap(v);
111 }
112}
113
114/*
115 * This one is used by copy_to_user_page()
116 */
117void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
118 unsigned long addr, int len)
119{
120 if (vma->vm_flags & VM_EXEC)
121 flush_icache_range(addr, addr + len);
122}
123
124asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len)
125{
126 int ret;
127
128 if (len > CACHEFLUSH_MAX_LEN) {
129 ret = -EPERM;
130 if (!capable(CAP_SYS_ADMIN))
131 goto out;
132 }
133
134 ret = -EFAULT;
135 if (!access_ok(VERIFY_WRITE, addr, len))
136 goto out;
137
138 switch (operation) {
139 case CACHE_IFLUSH:
140 flush_icache_range((unsigned long)addr,
141 (unsigned long)addr + len);
142 ret = 0;
143 break;
144 default:
145 ret = -EINVAL;
146 }
147
148out:
149 return ret;
150}
diff --git a/arch/avr32/mm/clear_page.S b/arch/avr32/mm/clear_page.S
new file mode 100644
index 000000000000..5d70dca00699
--- /dev/null
+++ b/arch/avr32/mm/clear_page.S
@@ -0,0 +1,25 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/linkage.h>
10#include <asm/page.h>
11
12/*
13 * clear_page
14 * r12: P1 address (to)
15 */
16 .text
17 .global clear_page
18clear_page:
19 sub r9, r12, -PAGE_SIZE
20 mov r10, 0
21 mov r11, 0
220: st.d r12++, r10
23 cp r12, r9
24 brne 0b
25 mov pc, lr
diff --git a/arch/avr32/mm/copy_page.S b/arch/avr32/mm/copy_page.S
new file mode 100644
index 000000000000..c2b3752946b8
--- /dev/null
+++ b/arch/avr32/mm/copy_page.S
@@ -0,0 +1,28 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/linkage.h>
9#include <asm/page.h>
10
11/*
12 * copy_page
13 *
14 * r12 to (P1 address)
15 * r11 from (P1 address)
16 * r8-r10 scratch
17 */
18 .text
19 .global copy_page
20copy_page:
21 sub r10, r11, -(1 << PAGE_SHIFT)
22 /* pref r11[0] */
231: /* pref r11[8] */
24 ld.d r8, r11++
25 st.d r12++, r8
26 cp r11, r10
27 brlo 1b
28 mov pc, lr
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
new file mode 100644
index 000000000000..44ab8a7bdae2
--- /dev/null
+++ b/arch/avr32/mm/dma-coherent.c
@@ -0,0 +1,139 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/dma-mapping.h>
10
11#include <asm/addrspace.h>
12#include <asm/cacheflush.h>
13
14void dma_cache_sync(void *vaddr, size_t size, int direction)
15{
16 /*
17 * No need to sync an uncached area
18 */
19 if (PXSEG(vaddr) == P2SEG)
20 return;
21
22 switch (direction) {
23 case DMA_FROM_DEVICE: /* invalidate only */
24 dma_cache_inv(vaddr, size);
25 break;
26 case DMA_TO_DEVICE: /* writeback only */
27 dma_cache_wback(vaddr, size);
28 break;
29 case DMA_BIDIRECTIONAL: /* writeback and invalidate */
30 dma_cache_wback_inv(vaddr, size);
31 break;
32 default:
33 BUG();
34 }
35}
36EXPORT_SYMBOL(dma_cache_sync);
37
38static struct page *__dma_alloc(struct device *dev, size_t size,
39 dma_addr_t *handle, gfp_t gfp)
40{
41 struct page *page, *free, *end;
42 int order;
43
44 size = PAGE_ALIGN(size);
45 order = get_order(size);
46
47 page = alloc_pages(gfp, order);
48 if (!page)
49 return NULL;
50 split_page(page, order);
51
52 /*
53 * When accessing physical memory with valid cache data, we
54 * get a cache hit even if the virtual memory region is marked
55 * as uncached.
56 *
57 * Since the memory is newly allocated, there is no point in
58 * doing a writeback. If the previous owner cares, he should
59 * have flushed the cache before releasing the memory.
60 */
61 invalidate_dcache_region(phys_to_virt(page_to_phys(page)), size);
62
63 *handle = page_to_bus(page);
64 free = page + (size >> PAGE_SHIFT);
65 end = page + (1 << order);
66
67 /*
68 * Free any unused pages
69 */
70 while (free < end) {
71 __free_page(free);
72 free++;
73 }
74
75 return page;
76}
77
78static void __dma_free(struct device *dev, size_t size,
79 struct page *page, dma_addr_t handle)
80{
81 struct page *end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT);
82
83 while (page < end)
84 __free_page(page++);
85}
86
87void *dma_alloc_coherent(struct device *dev, size_t size,
88 dma_addr_t *handle, gfp_t gfp)
89{
90 struct page *page;
91 void *ret = NULL;
92
93 page = __dma_alloc(dev, size, handle, gfp);
94 if (page)
95 ret = phys_to_uncached(page_to_phys(page));
96
97 return ret;
98}
99EXPORT_SYMBOL(dma_alloc_coherent);
100
101void dma_free_coherent(struct device *dev, size_t size,
102 void *cpu_addr, dma_addr_t handle)
103{
104 void *addr = phys_to_cached(uncached_to_phys(cpu_addr));
105 struct page *page;
106
107 pr_debug("dma_free_coherent addr %p (phys %08lx) size %u\n",
108 cpu_addr, (unsigned long)handle, (unsigned)size);
109 BUG_ON(!virt_addr_valid(addr));
110 page = virt_to_page(addr);
111 __dma_free(dev, size, page, handle);
112}
113EXPORT_SYMBOL(dma_free_coherent);
114
115#if 0
116void *dma_alloc_writecombine(struct device *dev, size_t size,
117 dma_addr_t *handle, gfp_t gfp)
118{
119 struct page *page;
120
121 page = __dma_alloc(dev, size, handle, gfp);
122
123 /* Now, map the page into P3 with write-combining turned on */
124 return __ioremap(page_to_phys(page), size, _PAGE_BUFFER);
125}
126EXPORT_SYMBOL(dma_alloc_writecombine);
127
128void dma_free_writecombine(struct device *dev, size_t size,
129 void *cpu_addr, dma_addr_t handle)
130{
131 struct page *page;
132
133 iounmap(cpu_addr);
134
135 page = bus_to_page(handle);
136 __dma_free(dev, size, page, handle);
137}
138EXPORT_SYMBOL(dma_free_writecombine);
139#endif
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
new file mode 100644
index 000000000000..678557260a35
--- /dev/null
+++ b/arch/avr32/mm/fault.c
@@ -0,0 +1,315 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * Based on linux/arch/sh/mm/fault.c:
5 * Copyright (C) 1999 Niibe Yutaka
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/mm.h>
13#include <linux/module.h>
14#include <linux/pagemap.h>
15
16#include <asm/kdebug.h>
17#include <asm/mmu_context.h>
18#include <asm/sysreg.h>
19#include <asm/uaccess.h>
20#include <asm/tlb.h>
21
22#ifdef DEBUG
23static void dump_code(unsigned long pc)
24{
25 char *p = (char *)pc;
26 char val;
27 int i;
28
29
30 printk(KERN_DEBUG "Code:");
31 for (i = 0; i < 16; i++) {
32 if (__get_user(val, p + i))
33 break;
34 printk(" %02x", val);
35 }
36 printk("\n");
37}
38#endif
39
40#ifdef CONFIG_KPROBES
41ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
42
43/* Hook to register for page fault notifications */
44int register_page_fault_notifier(struct notifier_block *nb)
45{
46 return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
47}
48
49int unregister_page_fault_notifier(struct notifier_block *nb)
50{
51 return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
52}
53
54static inline int notify_page_fault(enum die_val val, struct pt_regs *regs,
55 int trap, int sig)
56{
57 struct die_args args = {
58 .regs = regs,
59 .trapnr = trap,
60 };
61 return atomic_notifier_call_chain(&notify_page_fault_chain, val, &args);
62}
63#else
64static inline int notify_page_fault(enum die_val val, struct pt_regs *regs,
65 int trap, int sig)
66{
67 return NOTIFY_DONE;
68}
69#endif
70
71/*
72 * This routine handles page faults. It determines the address and the
73 * problem, and then passes it off to one of the appropriate routines.
74 *
75 * ecr is the Exception Cause Register. Possible values are:
76 * 5: Page not found (instruction access)
77 * 6: Protection fault (instruction access)
78 * 12: Page not found (read access)
79 * 13: Page not found (write access)
80 * 14: Protection fault (read access)
81 * 15: Protection fault (write access)
82 */
83asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
84{
85 struct task_struct *tsk;
86 struct mm_struct *mm;
87 struct vm_area_struct *vma;
88 const struct exception_table_entry *fixup;
89 unsigned long address;
90 unsigned long page;
91 int writeaccess = 0;
92
93 if (notify_page_fault(DIE_PAGE_FAULT, regs,
94 ecr, SIGSEGV) == NOTIFY_STOP)
95 return;
96
97 address = sysreg_read(TLBEAR);
98
99 tsk = current;
100 mm = tsk->mm;
101
102 /*
103 * If we're in an interrupt or have no user context, we must
104 * not take the fault...
105 */
106 if (in_atomic() || !mm || regs->sr & SYSREG_BIT(GM))
107 goto no_context;
108
109 local_irq_enable();
110
111 down_read(&mm->mmap_sem);
112
113 vma = find_vma(mm, address);
114 if (!vma)
115 goto bad_area;
116 if (vma->vm_start <= address)
117 goto good_area;
118 if (!(vma->vm_flags & VM_GROWSDOWN))
119 goto bad_area;
120 if (expand_stack(vma, address))
121 goto bad_area;
122
123 /*
124 * Ok, we have a good vm_area for this memory access, so we
125 * can handle it...
126 */
127good_area:
128 //pr_debug("good area: vm_flags = 0x%lx\n", vma->vm_flags);
129 switch (ecr) {
130 case ECR_PROTECTION_X:
131 case ECR_TLB_MISS_X:
132 if (!(vma->vm_flags & VM_EXEC))
133 goto bad_area;
134 break;
135 case ECR_PROTECTION_R:
136 case ECR_TLB_MISS_R:
137 if (!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)))
138 goto bad_area;
139 break;
140 case ECR_PROTECTION_W:
141 case ECR_TLB_MISS_W:
142 if (!(vma->vm_flags & VM_WRITE))
143 goto bad_area;
144 writeaccess = 1;
145 break;
146 default:
147 panic("Unhandled case %lu in do_page_fault!", ecr);
148 }
149
150 /*
151 * If for any reason at all we couldn't handle the fault, make
152 * sure we exit gracefully rather than endlessly redo the
153 * fault.
154 */
155survive:
156 switch (handle_mm_fault(mm, vma, address, writeaccess)) {
157 case VM_FAULT_MINOR:
158 tsk->min_flt++;
159 break;
160 case VM_FAULT_MAJOR:
161 tsk->maj_flt++;
162 break;
163 case VM_FAULT_SIGBUS:
164 goto do_sigbus;
165 case VM_FAULT_OOM:
166 goto out_of_memory;
167 default:
168 BUG();
169 }
170
171 up_read(&mm->mmap_sem);
172 return;
173
174 /*
175 * Something tried to access memory that isn't in our memory
176 * map. Fix it, but check if it's kernel or user first...
177 */
178bad_area:
179 pr_debug("Bad area [%s:%u]: addr %08lx, ecr %lu\n",
180 tsk->comm, tsk->pid, address, ecr);
181
182 up_read(&mm->mmap_sem);
183
184 if (user_mode(regs)) {
185 /* Hmm...we have to pass address and ecr somehow... */
186 /* tsk->thread.address = address;
187 tsk->thread.error_code = ecr; */
188#ifdef DEBUG
189 show_regs(regs);
190 dump_code(regs->pc);
191
192 page = sysreg_read(PTBR);
193 printk("ptbr = %08lx", page);
194 if (page) {
195 page = ((unsigned long *)page)[address >> 22];
196 printk(" pgd = %08lx", page);
197 if (page & _PAGE_PRESENT) {
198 page &= PAGE_MASK;
199 address &= 0x003ff000;
200 page = ((unsigned long *)__va(page))[address >> PAGE_SHIFT];
201 printk(" pte = %08lx\n", page);
202 }
203 }
204#endif
205 pr_debug("Sending SIGSEGV to PID %d...\n",
206 tsk->pid);
207 force_sig(SIGSEGV, tsk);
208 return;
209 }
210
211no_context:
212 pr_debug("No context\n");
213
214 /* Are we prepared to handle this kernel fault? */
215 fixup = search_exception_tables(regs->pc);
216 if (fixup) {
217 regs->pc = fixup->fixup;
218 pr_debug("Found fixup at %08lx\n", fixup->fixup);
219 return;
220 }
221
222 /*
223 * Oops. The kernel tried to access some bad page. We'll have
224 * to terminate things with extreme prejudice.
225 */
226 if (address < PAGE_SIZE)
227 printk(KERN_ALERT
228 "Unable to handle kernel NULL pointer dereference");
229 else
230 printk(KERN_ALERT
231 "Unable to handle kernel paging request");
232 printk(" at virtual address %08lx\n", address);
233 printk(KERN_ALERT "pc = %08lx\n", regs->pc);
234
235 page = sysreg_read(PTBR);
236 printk(KERN_ALERT "ptbr = %08lx", page);
237 if (page) {
238 page = ((unsigned long *)page)[address >> 22];
239 printk(" pgd = %08lx", page);
240 if (page & _PAGE_PRESENT) {
241 page &= PAGE_MASK;
242 address &= 0x003ff000;
243 page = ((unsigned long *)__va(page))[address >> PAGE_SHIFT];
244 printk(" pte = %08lx\n", page);
245 }
246 }
247 die("\nOops", regs, ecr);
248 do_exit(SIGKILL);
249
250 /*
251 * We ran out of memory, or some other thing happened to us
252 * that made us unable to handle the page fault gracefully.
253 */
254out_of_memory:
255 printk("Out of memory\n");
256 up_read(&mm->mmap_sem);
257 if (current->pid == 1) {
258 yield();
259 down_read(&mm->mmap_sem);
260 goto survive;
261 }
262 printk("VM: Killing process %s\n", tsk->comm);
263 if (user_mode(regs))
264 do_exit(SIGKILL);
265 goto no_context;
266
267do_sigbus:
268 up_read(&mm->mmap_sem);
269
270 /*
271 * Send a sigbus, regardless of whether we were in kernel or
272 * user mode.
273 */
274 /* address, error_code, trap_no, ... */
275#ifdef DEBUG
276 show_regs(regs);
277 dump_code(regs->pc);
278#endif
279 pr_debug("Sending SIGBUS to PID %d...\n", tsk->pid);
280 force_sig(SIGBUS, tsk);
281
282 /* Kernel mode? Handle exceptions or die */
283 if (!user_mode(regs))
284 goto no_context;
285}
286
287asmlinkage void do_bus_error(unsigned long addr, int write_access,
288 struct pt_regs *regs)
289{
290 printk(KERN_ALERT
291 "Bus error at physical address 0x%08lx (%s access)\n",
292 addr, write_access ? "write" : "read");
293 printk(KERN_INFO "DTLB dump:\n");
294 dump_dtlb();
295 die("Bus Error", regs, write_access);
296 do_exit(SIGKILL);
297}
298
299/*
300 * This functionality is currently not possible to implement because
301 * we're using segmentation to ensure a fixed mapping of the kernel
302 * virtual address space.
303 *
304 * It would be possible to implement this, but it would require us to
305 * disable segmentation at startup and load the kernel mappings into
306 * the TLB like any other pages. There will be lots of trickery to
307 * avoid recursive invocation of the TLB miss handler, though...
308 */
309#ifdef CONFIG_DEBUG_PAGEALLOC
310void kernel_map_pages(struct page *page, int numpages, int enable)
311{
312
313}
314EXPORT_SYMBOL(kernel_map_pages);
315#endif
diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c
new file mode 100644
index 000000000000..3e6c41039808
--- /dev/null
+++ b/arch/avr32/mm/init.c
@@ -0,0 +1,480 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/kernel.h>
10#include <linux/mm.h>
11#include <linux/swap.h>
12#include <linux/init.h>
13#include <linux/initrd.h>
14#include <linux/mmzone.h>
15#include <linux/bootmem.h>
16#include <linux/pagemap.h>
17#include <linux/pfn.h>
18#include <linux/nodemask.h>
19
20#include <asm/page.h>
21#include <asm/mmu_context.h>
22#include <asm/tlb.h>
23#include <asm/io.h>
24#include <asm/dma.h>
25#include <asm/setup.h>
26#include <asm/sections.h>
27
28DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
29
30pgd_t swapper_pg_dir[PTRS_PER_PGD];
31
32struct page *empty_zero_page;
33
34/*
35 * Cache of MMU context last used.
36 */
37unsigned long mmu_context_cache = NO_CONTEXT;
38
39#define START_PFN (NODE_DATA(0)->bdata->node_boot_start >> PAGE_SHIFT)
40#define MAX_LOW_PFN (NODE_DATA(0)->bdata->node_low_pfn)
41
42void show_mem(void)
43{
44 int total = 0, reserved = 0, cached = 0;
45 int slab = 0, free = 0, shared = 0;
46 pg_data_t *pgdat;
47
48 printk("Mem-info:\n");
49 show_free_areas();
50
51 for_each_online_pgdat(pgdat) {
52 struct page *page, *end;
53
54 page = pgdat->node_mem_map;
55 end = page + pgdat->node_spanned_pages;
56
57 do {
58 total++;
59 if (PageReserved(page))
60 reserved++;
61 else if (PageSwapCache(page))
62 cached++;
63 else if (PageSlab(page))
64 slab++;
65 else if (!page_count(page))
66 free++;
67 else
68 shared += page_count(page) - 1;
69 page++;
70 } while (page < end);
71 }
72
73 printk ("%d pages of RAM\n", total);
74 printk ("%d free pages\n", free);
75 printk ("%d reserved pages\n", reserved);
76 printk ("%d slab pages\n", slab);
77 printk ("%d pages shared\n", shared);
78 printk ("%d pages swap cached\n", cached);
79}
80
81static void __init print_memory_map(const char *what,
82 struct tag_mem_range *mem)
83{
84 printk ("%s:\n", what);
85 for (; mem; mem = mem->next) {
86 printk (" %08lx - %08lx\n",
87 (unsigned long)mem->addr,
88 (unsigned long)(mem->addr + mem->size));
89 }
90}
91
92#define MAX_LOWMEM HIGHMEM_START
93#define MAX_LOWMEM_PFN PFN_DOWN(MAX_LOWMEM)
94
95/*
96 * Sort a list of memory regions in-place by ascending address.
97 *
98 * We're using bubble sort because we only have singly linked lists
99 * with few elements.
100 */
101static void __init sort_mem_list(struct tag_mem_range **pmem)
102{
103 int done;
104 struct tag_mem_range **a, **b;
105
106 if (!*pmem)
107 return;
108
109 do {
110 done = 1;
111 a = pmem, b = &(*pmem)->next;
112 while (*b) {
113 if ((*a)->addr > (*b)->addr) {
114 struct tag_mem_range *tmp;
115 tmp = (*b)->next;
116 (*b)->next = *a;
117 *a = *b;
118 *b = tmp;
119 done = 0;
120 }
121 a = &(*a)->next;
122 b = &(*a)->next;
123 }
124 } while (!done);
125}
126
127/*
128 * Find a free memory region large enough for storing the
129 * bootmem bitmap.
130 */
131static unsigned long __init
132find_bootmap_pfn(const struct tag_mem_range *mem)
133{
134 unsigned long bootmap_pages, bootmap_len;
135 unsigned long node_pages = PFN_UP(mem->size);
136 unsigned long bootmap_addr = mem->addr;
137 struct tag_mem_range *reserved = mem_reserved;
138 struct tag_mem_range *ramdisk = mem_ramdisk;
139 unsigned long kern_start = virt_to_phys(_stext);
140 unsigned long kern_end = virt_to_phys(_end);
141
142 bootmap_pages = bootmem_bootmap_pages(node_pages);
143 bootmap_len = bootmap_pages << PAGE_SHIFT;
144
145 /*
146 * Find a large enough region without reserved pages for
147 * storing the bootmem bitmap. We can take advantage of the
148 * fact that all lists have been sorted.
149 *
150 * We have to check explicitly reserved regions as well as the
151 * kernel image and any RAMDISK images...
152 *
153 * Oh, and we have to make sure we don't overwrite the taglist
154 * since we're going to use it until the bootmem allocator is
155 * fully up and running.
156 */
157 while (1) {
158 if ((bootmap_addr < kern_end) &&
159 ((bootmap_addr + bootmap_len) > kern_start))
160 bootmap_addr = kern_end;
161
162 while (reserved &&
163 (bootmap_addr >= (reserved->addr + reserved->size)))
164 reserved = reserved->next;
165
166 if (reserved &&
167 ((bootmap_addr + bootmap_len) >= reserved->addr)) {
168 bootmap_addr = reserved->addr + reserved->size;
169 continue;
170 }
171
172 while (ramdisk &&
173 (bootmap_addr >= (ramdisk->addr + ramdisk->size)))
174 ramdisk = ramdisk->next;
175
176 if (!ramdisk ||
177 ((bootmap_addr + bootmap_len) < ramdisk->addr))
178 break;
179
180 bootmap_addr = ramdisk->addr + ramdisk->size;
181 }
182
183 if ((PFN_UP(bootmap_addr) + bootmap_len) >= (mem->addr + mem->size))
184 return ~0UL;
185
186 return PFN_UP(bootmap_addr);
187}
188
189void __init setup_bootmem(void)
190{
191 unsigned bootmap_size;
192 unsigned long first_pfn, bootmap_pfn, pages;
193 unsigned long max_pfn, max_low_pfn;
194 unsigned long kern_start = virt_to_phys(_stext);
195 unsigned long kern_end = virt_to_phys(_end);
196 unsigned node = 0;
197 struct tag_mem_range *bank, *res;
198
199 sort_mem_list(&mem_phys);
200 sort_mem_list(&mem_reserved);
201
202 print_memory_map("Physical memory", mem_phys);
203 print_memory_map("Reserved memory", mem_reserved);
204
205 nodes_clear(node_online_map);
206
207 if (mem_ramdisk) {
208#ifdef CONFIG_BLK_DEV_INITRD
209 initrd_start = __va(mem_ramdisk->addr);
210 initrd_end = initrd_start + mem_ramdisk->size;
211
212 print_memory_map("RAMDISK images", mem_ramdisk);
213 if (mem_ramdisk->next)
214 printk(KERN_WARNING
215 "Warning: Only the first RAMDISK image "
216 "will be used\n");
217 sort_mem_list(&mem_ramdisk);
218#else
219 printk(KERN_WARNING "RAM disk image present, but "
220 "no initrd support in kernel!\n");
221#endif
222 }
223
224 if (mem_phys->next)
225 printk(KERN_WARNING "Only using first memory bank\n");
226
227 for (bank = mem_phys; bank; bank = NULL) {
228 first_pfn = PFN_UP(bank->addr);
229 max_low_pfn = max_pfn = PFN_DOWN(bank->addr + bank->size);
230 bootmap_pfn = find_bootmap_pfn(bank);
231 if (bootmap_pfn > max_pfn)
232 panic("No space for bootmem bitmap!\n");
233
234 if (max_low_pfn > MAX_LOWMEM_PFN) {
235 max_low_pfn = MAX_LOWMEM_PFN;
236#ifndef CONFIG_HIGHMEM
237 /*
238 * Lowmem is memory that can be addressed
239 * directly through P1/P2
240 */
241 printk(KERN_WARNING
242 "Node %u: Only %ld MiB of memory will be used.\n",
243 node, MAX_LOWMEM >> 20);
244 printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n");
245#else
246#error HIGHMEM is not supported by AVR32 yet
247#endif
248 }
249
250 /* Initialize the boot-time allocator with low memory only. */
251 bootmap_size = init_bootmem_node(NODE_DATA(node), bootmap_pfn,
252 first_pfn, max_low_pfn);
253
254 printk("Node %u: bdata = %p, bdata->node_bootmem_map = %p\n",
255 node, NODE_DATA(node)->bdata,
256 NODE_DATA(node)->bdata->node_bootmem_map);
257
258 /*
259 * Register fully available RAM pages with the bootmem
260 * allocator.
261 */
262 pages = max_low_pfn - first_pfn;
263 free_bootmem_node (NODE_DATA(node), PFN_PHYS(first_pfn),
264 PFN_PHYS(pages));
265
266 /*
267 * Reserve space for the kernel image (if present in
268 * this node)...
269 */
270 if ((kern_start >= PFN_PHYS(first_pfn)) &&
271 (kern_start < PFN_PHYS(max_pfn))) {
272 printk("Node %u: Kernel image %08lx - %08lx\n",
273 node, kern_start, kern_end);
274 reserve_bootmem_node(NODE_DATA(node), kern_start,
275 kern_end - kern_start);
276 }
277
278 /* ...the bootmem bitmap... */
279 reserve_bootmem_node(NODE_DATA(node),
280 PFN_PHYS(bootmap_pfn),
281 bootmap_size);
282
283 /* ...any RAMDISK images... */
284 for (res = mem_ramdisk; res; res = res->next) {
285 if (res->addr > PFN_PHYS(max_pfn))
286 break;
287
288 if (res->addr >= PFN_PHYS(first_pfn)) {
289 printk("Node %u: RAMDISK %08lx - %08lx\n",
290 node,
291 (unsigned long)res->addr,
292 (unsigned long)(res->addr + res->size));
293 reserve_bootmem_node(NODE_DATA(node),
294 res->addr, res->size);
295 }
296 }
297
298 /* ...and any other reserved regions. */
299 for (res = mem_reserved; res; res = res->next) {
300 if (res->addr > PFN_PHYS(max_pfn))
301 break;
302
303 if (res->addr >= PFN_PHYS(first_pfn)) {
304 printk("Node %u: Reserved %08lx - %08lx\n",
305 node,
306 (unsigned long)res->addr,
307 (unsigned long)(res->addr + res->size));
308 reserve_bootmem_node(NODE_DATA(node),
309 res->addr, res->size);
310 }
311 }
312
313 node_set_online(node);
314 }
315}
316
317/*
318 * paging_init() sets up the page tables
319 *
320 * This routine also unmaps the page at virtual kernel address 0, so
321 * that we can trap those pesky NULL-reference errors in the kernel.
322 */
323void __init paging_init(void)
324{
325 extern unsigned long _evba;
326 void *zero_page;
327 int nid;
328
329 /*
330 * Make sure we can handle exceptions before enabling
331 * paging. Not that we should ever _get_ any exceptions this
332 * early, but you never know...
333 */
334 printk("Exception vectors start at %p\n", &_evba);
335 sysreg_write(EVBA, (unsigned long)&_evba);
336
337 /*
338 * Since we are ready to handle exceptions now, we should let
339 * the CPU generate them...
340 */
341 __asm__ __volatile__ ("csrf %0" : : "i"(SR_EM_BIT));
342
343 /*
344 * Allocate the zero page. The allocator will panic if it
345 * can't satisfy the request, so no need to check.
346 */
347 zero_page = alloc_bootmem_low_pages_node(NODE_DATA(0),
348 PAGE_SIZE);
349
350 {
351 pgd_t *pg_dir;
352 int i;
353
354 pg_dir = swapper_pg_dir;
355 sysreg_write(PTBR, (unsigned long)pg_dir);
356
357 for (i = 0; i < PTRS_PER_PGD; i++)
358 pgd_val(pg_dir[i]) = 0;
359
360 enable_mmu();
361 printk ("CPU: Paging enabled\n");
362 }
363
364 for_each_online_node(nid) {
365 pg_data_t *pgdat = NODE_DATA(nid);
366 unsigned long zones_size[MAX_NR_ZONES];
367 unsigned long low, start_pfn;
368
369 start_pfn = pgdat->bdata->node_boot_start;
370 start_pfn >>= PAGE_SHIFT;
371 low = pgdat->bdata->node_low_pfn;
372
373 memset(zones_size, 0, sizeof(zones_size));
374 zones_size[ZONE_NORMAL] = low - start_pfn;
375
376 printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n",
377 nid, start_pfn, low);
378
379 free_area_init_node(nid, pgdat, zones_size, start_pfn, NULL);
380
381 printk("Node %u: mem_map starts at %p\n",
382 pgdat->node_id, pgdat->node_mem_map);
383 }
384
385 mem_map = NODE_DATA(0)->node_mem_map;
386
387 memset(zero_page, 0, PAGE_SIZE);
388 empty_zero_page = virt_to_page(zero_page);
389 flush_dcache_page(empty_zero_page);
390}
391
392void __init mem_init(void)
393{
394 int codesize, reservedpages, datasize, initsize;
395 int nid, i;
396
397 reservedpages = 0;
398 high_memory = NULL;
399
400 /* this will put all low memory onto the freelists */
401 for_each_online_node(nid) {
402 pg_data_t *pgdat = NODE_DATA(nid);
403 unsigned long node_pages = 0;
404 void *node_high_memory;
405
406 num_physpages += pgdat->node_present_pages;
407
408 if (pgdat->node_spanned_pages != 0)
409 node_pages = free_all_bootmem_node(pgdat);
410
411 totalram_pages += node_pages;
412
413 for (i = 0; i < node_pages; i++)
414 if (PageReserved(pgdat->node_mem_map + i))
415 reservedpages++;
416
417 node_high_memory = (void *)((pgdat->node_start_pfn
418 + pgdat->node_spanned_pages)
419 << PAGE_SHIFT);
420 if (node_high_memory > high_memory)
421 high_memory = node_high_memory;
422 }
423
424 max_mapnr = MAP_NR(high_memory);
425
426 codesize = (unsigned long)_etext - (unsigned long)_text;
427 datasize = (unsigned long)_edata - (unsigned long)_data;
428 initsize = (unsigned long)__init_end - (unsigned long)__init_begin;
429
430 printk ("Memory: %luk/%luk available (%dk kernel code, "
431 "%dk reserved, %dk data, %dk init)\n",
432 (unsigned long)nr_free_pages() << (PAGE_SHIFT - 10),
433 totalram_pages << (PAGE_SHIFT - 10),
434 codesize >> 10,
435 reservedpages << (PAGE_SHIFT - 10),
436 datasize >> 10,
437 initsize >> 10);
438}
439
440static inline void free_area(unsigned long addr, unsigned long end, char *s)
441{
442 unsigned int size = (end - addr) >> 10;
443
444 for (; addr < end; addr += PAGE_SIZE) {
445 struct page *page = virt_to_page(addr);
446 ClearPageReserved(page);
447 init_page_count(page);
448 free_page(addr);
449 totalram_pages++;
450 }
451
452 if (size && s)
453 printk(KERN_INFO "Freeing %s memory: %dK (%lx - %lx)\n",
454 s, size, end - (size << 10), end);
455}
456
457void free_initmem(void)
458{
459 free_area((unsigned long)__init_begin, (unsigned long)__init_end,
460 "init");
461}
462
463#ifdef CONFIG_BLK_DEV_INITRD
464
465static int keep_initrd;
466
467void free_initrd_mem(unsigned long start, unsigned long end)
468{
469 if (!keep_initrd)
470 free_area(start, end, "initrd");
471}
472
473static int __init keepinitrd_setup(char *__unused)
474{
475 keep_initrd = 1;
476 return 1;
477}
478
479__setup("keepinitrd", keepinitrd_setup);
480#endif
diff --git a/arch/avr32/mm/ioremap.c b/arch/avr32/mm/ioremap.c
new file mode 100644
index 000000000000..536021877df6
--- /dev/null
+++ b/arch/avr32/mm/ioremap.c
@@ -0,0 +1,197 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#include <linux/vmalloc.h>
9#include <linux/module.h>
10
11#include <asm/io.h>
12#include <asm/pgtable.h>
13#include <asm/cacheflush.h>
14#include <asm/tlbflush.h>
15#include <asm/addrspace.h>
16
17static inline int remap_area_pte(pte_t *pte, unsigned long address,
18 unsigned long end, unsigned long phys_addr,
19 pgprot_t prot)
20{
21 unsigned long pfn;
22
23 pfn = phys_addr >> PAGE_SHIFT;
24 do {
25 WARN_ON(!pte_none(*pte));
26
27 set_pte(pte, pfn_pte(pfn, prot));
28 address += PAGE_SIZE;
29 pfn++;
30 pte++;
31 } while (address && (address < end));
32
33 return 0;
34}
35
36static inline int remap_area_pmd(pmd_t *pmd, unsigned long address,
37 unsigned long end, unsigned long phys_addr,
38 pgprot_t prot)
39{
40 unsigned long next;
41
42 phys_addr -= address;
43
44 do {
45 pte_t *pte = pte_alloc_kernel(pmd, address);
46 if (!pte)
47 return -ENOMEM;
48
49 next = (address + PMD_SIZE) & PMD_MASK;
50 if (remap_area_pte(pte, address, next,
51 address + phys_addr, prot))
52 return -ENOMEM;
53
54 address = next;
55 pmd++;
56 } while (address && (address < end));
57 return 0;
58}
59
60static int remap_area_pud(pud_t *pud, unsigned long address,
61 unsigned long end, unsigned long phys_addr,
62 pgprot_t prot)
63{
64 unsigned long next;
65
66 phys_addr -= address;
67
68 do {
69 pmd_t *pmd = pmd_alloc(&init_mm, pud, address);
70 if (!pmd)
71 return -ENOMEM;
72 next = (address + PUD_SIZE) & PUD_MASK;
73 if (remap_area_pmd(pmd, address, next,
74 phys_addr + address, prot))
75 return -ENOMEM;
76
77 address = next;
78 pud++;
79 } while (address && address < end);
80
81 return 0;
82}
83
84static int remap_area_pages(unsigned long address, unsigned long phys_addr,
85 size_t size, pgprot_t prot)
86{
87 unsigned long end = address + size;
88 unsigned long next;
89 pgd_t *pgd;
90 int err = 0;
91
92 phys_addr -= address;
93
94 pgd = pgd_offset_k(address);
95 flush_cache_all();
96 BUG_ON(address >= end);
97
98 spin_lock(&init_mm.page_table_lock);
99 do {
100 pud_t *pud = pud_alloc(&init_mm, pgd, address);
101
102 err = -ENOMEM;
103 if (!pud)
104 break;
105
106 next = (address + PGDIR_SIZE) & PGDIR_MASK;
107 if (next < address || next > end)
108 next = end;
109 err = remap_area_pud(pud, address, next,
110 phys_addr + address, prot);
111 if (err)
112 break;
113
114 address = next;
115 pgd++;
116 } while (address && (address < end));
117
118 spin_unlock(&init_mm.page_table_lock);
119 flush_tlb_all();
120 return err;
121}
122
123/*
124 * Re-map an arbitrary physical address space into the kernel virtual
125 * address space. Needed when the kernel wants to access physical
126 * memory directly.
127 */
128void __iomem *__ioremap(unsigned long phys_addr, size_t size,
129 unsigned long flags)
130{
131 void *addr;
132 struct vm_struct *area;
133 unsigned long offset, last_addr;
134 pgprot_t prot;
135
136 /*
137 * Check if we can simply use the P4 segment. This area is
138 * uncacheable, so if caching/buffering is requested, we can't
139 * use it.
140 */
141 if ((phys_addr >= P4SEG) && (flags == 0))
142 return (void __iomem *)phys_addr;
143
144 /* Don't allow wraparound or zero size */
145 last_addr = phys_addr + size - 1;
146 if (!size || last_addr < phys_addr)
147 return NULL;
148
149 /*
150 * XXX: When mapping regular RAM, we'd better make damn sure
151 * it's never used for anything else. But this is really the
152 * caller's responsibility...
153 */
154 if (PHYSADDR(P2SEGADDR(phys_addr)) == phys_addr)
155 return (void __iomem *)P2SEGADDR(phys_addr);
156
157 /* Mappings have to be page-aligned */
158 offset = phys_addr & ~PAGE_MASK;
159 phys_addr &= PAGE_MASK;
160 size = PAGE_ALIGN(last_addr + 1) - phys_addr;
161
162 prot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY
163 | _PAGE_ACCESSED | _PAGE_TYPE_SMALL | flags);
164
165 /*
166 * Ok, go for it..
167 */
168 area = get_vm_area(size, VM_IOREMAP);
169 if (!area)
170 return NULL;
171 area->phys_addr = phys_addr;
172 addr = area->addr;
173 if (remap_area_pages((unsigned long)addr, phys_addr, size, prot)) {
174 vunmap(addr);
175 return NULL;
176 }
177
178 return (void __iomem *)(offset + (char *)addr);
179}
180EXPORT_SYMBOL(__ioremap);
181
182void __iounmap(void __iomem *addr)
183{
184 struct vm_struct *p;
185
186 if ((unsigned long)addr >= P4SEG)
187 return;
188
189 p = remove_vm_area((void *)(PAGE_MASK & (unsigned long __force)addr));
190 if (unlikely(!p)) {
191 printk (KERN_ERR "iounmap: bad address %p\n", addr);
192 return;
193 }
194
195 kfree (p);
196}
197EXPORT_SYMBOL(__iounmap);
diff --git a/arch/avr32/mm/tlb.c b/arch/avr32/mm/tlb.c
new file mode 100644
index 000000000000..5d0523bbe298
--- /dev/null
+++ b/arch/avr32/mm/tlb.c
@@ -0,0 +1,378 @@
1/*
2 * AVR32 TLB operations
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/mm.h>
11
12#include <asm/mmu_context.h>
13
14#define _TLBEHI_I 0x100
15
16void show_dtlb_entry(unsigned int index)
17{
18 unsigned int tlbehi, tlbehi_save, tlbelo, mmucr, mmucr_save, flags;
19
20 local_irq_save(flags);
21 mmucr_save = sysreg_read(MMUCR);
22 tlbehi_save = sysreg_read(TLBEHI);
23 mmucr = mmucr_save & 0x13;
24 mmucr |= index << 14;
25 sysreg_write(MMUCR, mmucr);
26
27 asm volatile("tlbr" : : : "memory");
28 cpu_sync_pipeline();
29
30 tlbehi = sysreg_read(TLBEHI);
31 tlbelo = sysreg_read(TLBELO);
32
33 printk("%2u: %c %c %02x %05x %05x %o %o %c %c %c %c\n",
34 index,
35 (tlbehi & 0x200)?'1':'0',
36 (tlbelo & 0x100)?'1':'0',
37 (tlbehi & 0xff),
38 (tlbehi >> 12), (tlbelo >> 12),
39 (tlbelo >> 4) & 7, (tlbelo >> 2) & 3,
40 (tlbelo & 0x200)?'1':'0',
41 (tlbelo & 0x080)?'1':'0',
42 (tlbelo & 0x001)?'1':'0',
43 (tlbelo & 0x002)?'1':'0');
44
45 sysreg_write(MMUCR, mmucr_save);
46 sysreg_write(TLBEHI, tlbehi_save);
47 cpu_sync_pipeline();
48 local_irq_restore(flags);
49}
50
51void dump_dtlb(void)
52{
53 unsigned int i;
54
55 printk("ID V G ASID VPN PFN AP SZ C B W D\n");
56 for (i = 0; i < 32; i++)
57 show_dtlb_entry(i);
58}
59
60static unsigned long last_mmucr;
61
62static inline void set_replacement_pointer(unsigned shift)
63{
64 unsigned long mmucr, mmucr_save;
65
66 mmucr = mmucr_save = sysreg_read(MMUCR);
67
68 /* Does this mapping already exist? */
69 __asm__ __volatile__(
70 " tlbs\n"
71 " mfsr %0, %1"
72 : "=r"(mmucr)
73 : "i"(SYSREG_MMUCR));
74
75 if (mmucr & SYSREG_BIT(MMUCR_N)) {
76 /* Not found -- pick a not-recently-accessed entry */
77 unsigned long rp;
78 unsigned long tlbar = sysreg_read(TLBARLO);
79
80 rp = 32 - fls(tlbar);
81 if (rp == 32) {
82 rp = 0;
83 sysreg_write(TLBARLO, -1L);
84 }
85
86 mmucr &= 0x13;
87 mmucr |= (rp << shift);
88
89 sysreg_write(MMUCR, mmucr);
90 }
91
92 last_mmucr = mmucr;
93}
94
95static void update_dtlb(unsigned long address, pte_t pte, unsigned long asid)
96{
97 unsigned long vpn;
98
99 vpn = (address & MMU_VPN_MASK) | _TLBEHI_VALID | asid;
100 sysreg_write(TLBEHI, vpn);
101 cpu_sync_pipeline();
102
103 set_replacement_pointer(14);
104
105 sysreg_write(TLBELO, pte_val(pte) & _PAGE_FLAGS_HARDWARE_MASK);
106
107 /* Let's go */
108 asm volatile("nop\n\ttlbw" : : : "memory");
109 cpu_sync_pipeline();
110}
111
112void update_mmu_cache(struct vm_area_struct *vma,
113 unsigned long address, pte_t pte)
114{
115 unsigned long flags;
116
117 /* ptrace may call this routine */
118 if (vma && current->active_mm != vma->vm_mm)
119 return;
120
121 local_irq_save(flags);
122 update_dtlb(address, pte, get_asid());
123 local_irq_restore(flags);
124}
125
126void __flush_tlb_page(unsigned long asid, unsigned long page)
127{
128 unsigned long mmucr, tlbehi;
129
130 page |= asid;
131 sysreg_write(TLBEHI, page);
132 cpu_sync_pipeline();
133 asm volatile("tlbs");
134 mmucr = sysreg_read(MMUCR);
135
136 if (!(mmucr & SYSREG_BIT(MMUCR_N))) {
137 unsigned long tlbarlo;
138 unsigned long entry;
139
140 /* Clear the "valid" bit */
141 tlbehi = sysreg_read(TLBEHI);
142 tlbehi &= ~_TLBEHI_VALID;
143 sysreg_write(TLBEHI, tlbehi);
144 cpu_sync_pipeline();
145
146 /* mark the entry as "not accessed" */
147 entry = (mmucr >> 14) & 0x3f;
148 tlbarlo = sysreg_read(TLBARLO);
149 tlbarlo |= (0x80000000 >> entry);
150 sysreg_write(TLBARLO, tlbarlo);
151
152 /* update the entry with valid bit clear */
153 asm volatile("tlbw");
154 cpu_sync_pipeline();
155 }
156}
157
158void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
159{
160 if (vma->vm_mm && vma->vm_mm->context != NO_CONTEXT) {
161 unsigned long flags, asid;
162 unsigned long saved_asid = MMU_NO_ASID;
163
164 asid = vma->vm_mm->context & MMU_CONTEXT_ASID_MASK;
165 page &= PAGE_MASK;
166
167 local_irq_save(flags);
168 if (vma->vm_mm != current->mm) {
169 saved_asid = get_asid();
170 set_asid(asid);
171 }
172
173 __flush_tlb_page(asid, page);
174
175 if (saved_asid != MMU_NO_ASID)
176 set_asid(saved_asid);
177 local_irq_restore(flags);
178 }
179}
180
181void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
182 unsigned long end)
183{
184 struct mm_struct *mm = vma->vm_mm;
185
186 if (mm->context != NO_CONTEXT) {
187 unsigned long flags;
188 int size;
189
190 local_irq_save(flags);
191 size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
192 if (size > (MMU_DTLB_ENTRIES / 4)) { /* Too many entries to flush */
193 mm->context = NO_CONTEXT;
194 if (mm == current->mm)
195 activate_context(mm);
196 } else {
197 unsigned long asid = mm->context & MMU_CONTEXT_ASID_MASK;
198 unsigned long saved_asid = MMU_NO_ASID;
199
200 start &= PAGE_MASK;
201 end += (PAGE_SIZE - 1);
202 end &= PAGE_MASK;
203 if (mm != current->mm) {
204 saved_asid = get_asid();
205 set_asid(asid);
206 }
207
208 while (start < end) {
209 __flush_tlb_page(asid, start);
210 start += PAGE_SIZE;
211 }
212 if (saved_asid != MMU_NO_ASID)
213 set_asid(saved_asid);
214 }
215 local_irq_restore(flags);
216 }
217}
218
219/*
220 * TODO: If this is only called for addresses > TASK_SIZE, we can probably
221 * skip the ASID stuff and just use the Global bit...
222 */
223void flush_tlb_kernel_range(unsigned long start, unsigned long end)
224{
225 unsigned long flags;
226 int size;
227
228 local_irq_save(flags);
229 size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
230 if (size > (MMU_DTLB_ENTRIES / 4)) { /* Too many entries to flush */
231 flush_tlb_all();
232 } else {
233 unsigned long asid = init_mm.context & MMU_CONTEXT_ASID_MASK;
234 unsigned long saved_asid = get_asid();
235
236 start &= PAGE_MASK;
237 end += (PAGE_SIZE - 1);
238 end &= PAGE_MASK;
239 set_asid(asid);
240 while (start < end) {
241 __flush_tlb_page(asid, start);
242 start += PAGE_SIZE;
243 }
244 set_asid(saved_asid);
245 }
246 local_irq_restore(flags);
247}
248
249void flush_tlb_mm(struct mm_struct *mm)
250{
251 /* Invalidate all TLB entries of this process by getting a new ASID */
252 if (mm->context != NO_CONTEXT) {
253 unsigned long flags;
254
255 local_irq_save(flags);
256 mm->context = NO_CONTEXT;
257 if (mm == current->mm)
258 activate_context(mm);
259 local_irq_restore(flags);
260 }
261}
262
263void flush_tlb_all(void)
264{
265 unsigned long flags;
266
267 local_irq_save(flags);
268 sysreg_write(MMUCR, sysreg_read(MMUCR) | SYSREG_BIT(MMUCR_I));
269 local_irq_restore(flags);
270}
271
272#ifdef CONFIG_PROC_FS
273
274#include <linux/seq_file.h>
275#include <linux/proc_fs.h>
276#include <linux/init.h>
277
278static void *tlb_start(struct seq_file *tlb, loff_t *pos)
279{
280 static unsigned long tlb_index;
281
282 if (*pos >= 32)
283 return NULL;
284
285 tlb_index = 0;
286 return &tlb_index;
287}
288
289static void *tlb_next(struct seq_file *tlb, void *v, loff_t *pos)
290{
291 unsigned long *index = v;
292
293 if (*index >= 31)
294 return NULL;
295
296 ++*pos;
297 ++*index;
298 return index;
299}
300
301static void tlb_stop(struct seq_file *tlb, void *v)
302{
303
304}
305
306static int tlb_show(struct seq_file *tlb, void *v)
307{
308 unsigned int tlbehi, tlbehi_save, tlbelo, mmucr, mmucr_save, flags;
309 unsigned long *index = v;
310
311 if (*index == 0)
312 seq_puts(tlb, "ID V G ASID VPN PFN AP SZ C B W D\n");
313
314 BUG_ON(*index >= 32);
315
316 local_irq_save(flags);
317 mmucr_save = sysreg_read(MMUCR);
318 tlbehi_save = sysreg_read(TLBEHI);
319 mmucr = mmucr_save & 0x13;
320 mmucr |= *index << 14;
321 sysreg_write(MMUCR, mmucr);
322
323 asm volatile("tlbr" : : : "memory");
324 cpu_sync_pipeline();
325
326 tlbehi = sysreg_read(TLBEHI);
327 tlbelo = sysreg_read(TLBELO);
328
329 sysreg_write(MMUCR, mmucr_save);
330 sysreg_write(TLBEHI, tlbehi_save);
331 cpu_sync_pipeline();
332 local_irq_restore(flags);
333
334 seq_printf(tlb, "%2lu: %c %c %02x %05x %05x %o %o %c %c %c %c\n",
335 *index,
336 (tlbehi & 0x200)?'1':'0',
337 (tlbelo & 0x100)?'1':'0',
338 (tlbehi & 0xff),
339 (tlbehi >> 12), (tlbelo >> 12),
340 (tlbelo >> 4) & 7, (tlbelo >> 2) & 3,
341 (tlbelo & 0x200)?'1':'0',
342 (tlbelo & 0x080)?'1':'0',
343 (tlbelo & 0x001)?'1':'0',
344 (tlbelo & 0x002)?'1':'0');
345
346 return 0;
347}
348
349static struct seq_operations tlb_ops = {
350 .start = tlb_start,
351 .next = tlb_next,
352 .stop = tlb_stop,
353 .show = tlb_show,
354};
355
356static int tlb_open(struct inode *inode, struct file *file)
357{
358 return seq_open(file, &tlb_ops);
359}
360
361static struct file_operations proc_tlb_operations = {
362 .open = tlb_open,
363 .read = seq_read,
364 .llseek = seq_lseek,
365 .release = seq_release,
366};
367
368static int __init proctlb_init(void)
369{
370 struct proc_dir_entry *entry;
371
372 entry = create_proc_entry("tlb", 0, NULL);
373 if (entry)
374 entry->proc_fops = &proc_tlb_operations;
375 return 0;
376}
377late_initcall(proctlb_init);
378#endif /* CONFIG_PROC_FS */
diff --git a/include/asm-avr32/Kbuild b/include/asm-avr32/Kbuild
new file mode 100644
index 000000000000..8770e73ce938
--- /dev/null
+++ b/include/asm-avr32/Kbuild
@@ -0,0 +1,3 @@
1include include/asm-generic/Kbuild.asm
2
3headers-y += cachectl.h
diff --git a/include/asm-avr32/a.out.h b/include/asm-avr32/a.out.h
new file mode 100644
index 000000000000..50bf6e31a143
--- /dev/null
+++ b/include/asm-avr32/a.out.h
@@ -0,0 +1,26 @@
1#ifndef __ASM_AVR32_A_OUT_H
2#define __ASM_AVR32_A_OUT_H
3
4struct exec
5{
6 unsigned long a_info; /* Use macros N_MAGIC, etc for access */
7 unsigned a_text; /* length of text, in bytes */
8 unsigned a_data; /* length of data, in bytes */
9 unsigned a_bss; /* length of uninitialized data area for file, in bytes */
10 unsigned a_syms; /* length of symbol table data in file, in bytes */
11 unsigned a_entry; /* start address */
12 unsigned a_trsize; /* length of relocation info for text, in bytes */
13 unsigned a_drsize; /* length of relocation info for data, in bytes */
14};
15
16#define N_TRSIZE(a) ((a).a_trsize)
17#define N_DRSIZE(a) ((a).a_drsize)
18#define N_SYMSIZE(a) ((a).a_syms)
19
20#ifdef __KERNEL__
21
22#define STACK_TOP TASK_SIZE
23
24#endif
25
26#endif /* __ASM_AVR32_A_OUT_H */
diff --git a/include/asm-avr32/addrspace.h b/include/asm-avr32/addrspace.h
new file mode 100644
index 000000000000..366794858ec7
--- /dev/null
+++ b/include/asm-avr32/addrspace.h
@@ -0,0 +1,43 @@
1/*
2 * Defitions for the address spaces of the AVR32 CPUs. Heavily based on
3 * include/asm-sh/addrspace.h
4 *
5 * Copyright (C) 2004-2006 Atmel Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef __ASM_AVR32_ADDRSPACE_H
12#define __ASM_AVR32_ADDRSPACE_H
13
14#ifdef CONFIG_MMU
15
16/* Memory segments when segmentation is enabled */
17#define P0SEG 0x00000000
18#define P1SEG 0x80000000
19#define P2SEG 0xa0000000
20#define P3SEG 0xc0000000
21#define P4SEG 0xe0000000
22
23/* Returns the privileged segment base of a given address */
24#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000)
25
26/* Returns the physical address of a PnSEG (n=1,2) address */
27#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
28
29/*
30 * Map an address to a certain privileged segment
31 */
32#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
33 | P1SEG))
34#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
35 | P2SEG))
36#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
37 | P3SEG))
38#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
39 | P4SEG))
40
41#endif /* CONFIG_MMU */
42
43#endif /* __ASM_AVR32_ADDRSPACE_H */
diff --git a/include/asm-avr32/arch-at32ap/at91rm9200_pdc.h b/include/asm-avr32/arch-at32ap/at91rm9200_pdc.h
new file mode 100644
index 000000000000..ce1150d4438d
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap/at91rm9200_pdc.h
@@ -0,0 +1,36 @@
1/*
2 * include/asm-arm/arch-at91rm9200/at91rm9200_pdc.h
3 *
4 * Copyright (C) 2005 Ivan Kokshaysky
5 * Copyright (C) SAN People
6 *
7 * Peripheral Data Controller (PDC) registers.
8 * Based on AT91RM9200 datasheet revision E.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 */
15
16#ifndef AT91RM9200_PDC_H
17#define AT91RM9200_PDC_H
18
19#define AT91_PDC_RPR 0x100 /* Receive Pointer Register */
20#define AT91_PDC_RCR 0x104 /* Receive Counter Register */
21#define AT91_PDC_TPR 0x108 /* Transmit Pointer Register */
22#define AT91_PDC_TCR 0x10c /* Transmit Counter Register */
23#define AT91_PDC_RNPR 0x110 /* Receive Next Pointer Register */
24#define AT91_PDC_RNCR 0x114 /* Receive Next Counter Register */
25#define AT91_PDC_TNPR 0x118 /* Transmit Next Pointer Register */
26#define AT91_PDC_TNCR 0x11c /* Transmit Next Counter Register */
27
28#define AT91_PDC_PTCR 0x120 /* Transfer Control Register */
29#define AT91_PDC_RXTEN (1 << 0) /* Receiver Transfer Enable */
30#define AT91_PDC_RXTDIS (1 << 1) /* Receiver Transfer Disable */
31#define AT91_PDC_TXTEN (1 << 8) /* Transmitter Transfer Enable */
32#define AT91_PDC_TXTDIS (1 << 9) /* Transmitter Transfer Disable */
33
34#define AT91_PDC_PTSR 0x124 /* Transfer Status Register */
35
36#endif
diff --git a/include/asm-avr32/arch-at32ap/at91rm9200_usart.h b/include/asm-avr32/arch-at32ap/at91rm9200_usart.h
new file mode 100644
index 000000000000..79f851e31b9c
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap/at91rm9200_usart.h
@@ -0,0 +1,123 @@
1/*
2 * include/asm-arm/arch-at91rm9200/at91rm9200_usart.h
3 *
4 * Copyright (C) 2005 Ivan Kokshaysky
5 * Copyright (C) SAN People
6 *
7 * USART registers.
8 * Based on AT91RM9200 datasheet revision E.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 */
15
16#ifndef AT91RM9200_USART_H
17#define AT91RM9200_USART_H
18
19#define AT91_US_CR 0x00 /* Control Register */
20#define AT91_US_RSTRX (1 << 2) /* Reset Receiver */
21#define AT91_US_RSTTX (1 << 3) /* Reset Transmitter */
22#define AT91_US_RXEN (1 << 4) /* Receiver Enable */
23#define AT91_US_RXDIS (1 << 5) /* Receiver Disable */
24#define AT91_US_TXEN (1 << 6) /* Transmitter Enable */
25#define AT91_US_TXDIS (1 << 7) /* Transmitter Disable */
26#define AT91_US_RSTSTA (1 << 8) /* Reset Status Bits */
27#define AT91_US_STTBRK (1 << 9) /* Start Break */
28#define AT91_US_STPBRK (1 << 10) /* Stop Break */
29#define AT91_US_STTTO (1 << 11) /* Start Time-out */
30#define AT91_US_SENDA (1 << 12) /* Send Address */
31#define AT91_US_RSTIT (1 << 13) /* Reset Iterations */
32#define AT91_US_RSTNACK (1 << 14) /* Reset Non Acknowledge */
33#define AT91_US_RETTO (1 << 15) /* Rearm Time-out */
34#define AT91_US_DTREN (1 << 16) /* Data Terminal Ready Enable */
35#define AT91_US_DTRDIS (1 << 17) /* Data Terminal Ready Disable */
36#define AT91_US_RTSEN (1 << 18) /* Request To Send Enable */
37#define AT91_US_RTSDIS (1 << 19) /* Request To Send Disable */
38
39#define AT91_US_MR 0x04 /* Mode Register */
40#define AT91_US_USMODE (0xf << 0) /* Mode of the USART */
41#define AT91_US_USMODE_NORMAL 0
42#define AT91_US_USMODE_RS485 1
43#define AT91_US_USMODE_HWHS 2
44#define AT91_US_USMODE_MODEM 3
45#define AT91_US_USMODE_ISO7816_T0 4
46#define AT91_US_USMODE_ISO7816_T1 6
47#define AT91_US_USMODE_IRDA 8
48#define AT91_US_USCLKS (3 << 4) /* Clock Selection */
49#define AT91_US_CHRL (3 << 6) /* Character Length */
50#define AT91_US_CHRL_5 (0 << 6)
51#define AT91_US_CHRL_6 (1 << 6)
52#define AT91_US_CHRL_7 (2 << 6)
53#define AT91_US_CHRL_8 (3 << 6)
54#define AT91_US_SYNC (1 << 8) /* Synchronous Mode Select */
55#define AT91_US_PAR (7 << 9) /* Parity Type */
56#define AT91_US_PAR_EVEN (0 << 9)
57#define AT91_US_PAR_ODD (1 << 9)
58#define AT91_US_PAR_SPACE (2 << 9)
59#define AT91_US_PAR_MARK (3 << 9)
60#define AT91_US_PAR_NONE (4 << 9)
61#define AT91_US_PAR_MULTI_DROP (6 << 9)
62#define AT91_US_NBSTOP (3 << 12) /* Number of Stop Bits */
63#define AT91_US_NBSTOP_1 (0 << 12)
64#define AT91_US_NBSTOP_1_5 (1 << 12)
65#define AT91_US_NBSTOP_2 (2 << 12)
66#define AT91_US_CHMODE (3 << 14) /* Channel Mode */
67#define AT91_US_CHMODE_NORMAL (0 << 14)
68#define AT91_US_CHMODE_ECHO (1 << 14)
69#define AT91_US_CHMODE_LOC_LOOP (2 << 14)
70#define AT91_US_CHMODE_REM_LOOP (3 << 14)
71#define AT91_US_MSBF (1 << 16) /* Bit Order */
72#define AT91_US_MODE9 (1 << 17) /* 9-bit Character Length */
73#define AT91_US_CLKO (1 << 18) /* Clock Output Select */
74#define AT91_US_OVER (1 << 19) /* Oversampling Mode */
75#define AT91_US_INACK (1 << 20) /* Inhibit Non Acknowledge */
76#define AT91_US_DSNACK (1 << 21) /* Disable Successive NACK */
77#define AT91_US_MAX_ITER (7 << 24) /* Max Iterations */
78#define AT91_US_FILTER (1 << 28) /* Infrared Receive Line Filter */
79
80#define AT91_US_IER 0x08 /* Interrupt Enable Register */
81#define AT91_US_RXRDY (1 << 0) /* Receiver Ready */
82#define AT91_US_TXRDY (1 << 1) /* Transmitter Ready */
83#define AT91_US_RXBRK (1 << 2) /* Break Received / End of Break */
84#define AT91_US_ENDRX (1 << 3) /* End of Receiver Transfer */
85#define AT91_US_ENDTX (1 << 4) /* End of Transmitter Transfer */
86#define AT91_US_OVRE (1 << 5) /* Overrun Error */
87#define AT91_US_FRAME (1 << 6) /* Framing Error */
88#define AT91_US_PARE (1 << 7) /* Parity Error */
89#define AT91_US_TIMEOUT (1 << 8) /* Receiver Time-out */
90#define AT91_US_TXEMPTY (1 << 9) /* Transmitter Empty */
91#define AT91_US_ITERATION (1 << 10) /* Max number of Repetitions Reached */
92#define AT91_US_TXBUFE (1 << 11) /* Transmission Buffer Empty */
93#define AT91_US_RXBUFF (1 << 12) /* Reception Buffer Full */
94#define AT91_US_NACK (1 << 13) /* Non Acknowledge */
95#define AT91_US_RIIC (1 << 16) /* Ring Indicator Input Change */
96#define AT91_US_DSRIC (1 << 17) /* Data Set Ready Input Change */
97#define AT91_US_DCDIC (1 << 18) /* Data Carrier Detect Input Change */
98#define AT91_US_CTSIC (1 << 19) /* Clear to Send Input Change */
99#define AT91_US_RI (1 << 20) /* RI */
100#define AT91_US_DSR (1 << 21) /* DSR */
101#define AT91_US_DCD (1 << 22) /* DCD */
102#define AT91_US_CTS (1 << 23) /* CTS */
103
104#define AT91_US_IDR 0x0c /* Interrupt Disable Register */
105#define AT91_US_IMR 0x10 /* Interrupt Mask Register */
106#define AT91_US_CSR 0x14 /* Channel Status Register */
107#define AT91_US_RHR 0x18 /* Receiver Holding Register */
108#define AT91_US_THR 0x1c /* Transmitter Holding Register */
109
110#define AT91_US_BRGR 0x20 /* Baud Rate Generator Register */
111#define AT91_US_CD (0xffff << 0) /* Clock Divider */
112
113#define AT91_US_RTOR 0x24 /* Receiver Time-out Register */
114#define AT91_US_TO (0xffff << 0) /* Time-out Value */
115
116#define AT91_US_TTGR 0x28 /* Transmitter Timeguard Register */
117#define AT91_US_TG (0xff << 0) /* Timeguard Value */
118
119#define AT91_US_FIDI 0x40 /* FI DI Ratio Register */
120#define AT91_US_NER 0x44 /* Number of Errors Register */
121#define AT91_US_IF 0x4c /* IrDA Filter Register */
122
123#endif
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
new file mode 100644
index 000000000000..39368e18ab20
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -0,0 +1,35 @@
1/*
2 * Platform data definitions.
3 */
4#ifndef __ASM_ARCH_BOARD_H
5#define __ASM_ARCH_BOARD_H
6
7#include <linux/types.h>
8
9/* Add basic devices: system manager, interrupt controller, portmuxes, etc. */
10void at32_add_system_devices(void);
11
12#define AT91_NR_UART 4
13extern struct platform_device *at91_default_console_device;
14
15struct platform_device *at32_add_device_usart(unsigned int id);
16
17struct eth_platform_data {
18 u8 valid;
19 u8 mii_phy_addr;
20 u8 is_rmii;
21 u8 hw_addr[6];
22};
23struct platform_device *
24at32_add_device_eth(unsigned int id, struct eth_platform_data *data);
25
26struct platform_device *at32_add_device_spi(unsigned int id);
27
28struct lcdc_platform_data {
29 unsigned long fbmem_start;
30 unsigned long fbmem_size;
31};
32struct platform_device *
33at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data);
34
35#endif /* __ASM_ARCH_BOARD_H */
diff --git a/include/asm-avr32/arch-at32ap/init.h b/include/asm-avr32/arch-at32ap/init.h
new file mode 100644
index 000000000000..43722634e069
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap/init.h
@@ -0,0 +1,21 @@
1/*
2 * AT32AP platform initialization calls.
3 *
4 * Copyright (C) 2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#ifndef __ASM_AVR32_AT32AP_INIT_H__
11#define __ASM_AVR32_AT32AP_INIT_H__
12
13void setup_platform(void);
14
15/* Called by setup_platform */
16void at32_clock_init(void);
17void at32_portmux_init(void);
18
19void at32_setup_serial_console(unsigned int usart_id);
20
21#endif /* __ASM_AVR32_AT32AP_INIT_H__ */
diff --git a/include/asm-avr32/arch-at32ap/portmux.h b/include/asm-avr32/arch-at32ap/portmux.h
new file mode 100644
index 000000000000..4d50421262a1
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap/portmux.h
@@ -0,0 +1,16 @@
1/*
2 * AT32 portmux interface.
3 *
4 * Copyright (C) 2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#ifndef __ASM_AVR32_AT32_PORTMUX_H__
11#define __ASM_AVR32_AT32_PORTMUX_H__
12
13void portmux_set_func(unsigned int portmux_id, unsigned int pin_id,
14 unsigned int function_id);
15
16#endif /* __ASM_AVR32_AT32_PORTMUX_H__ */
diff --git a/include/asm-avr32/arch-at32ap/sm.h b/include/asm-avr32/arch-at32ap/sm.h
new file mode 100644
index 000000000000..265a9ead20bf
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap/sm.h
@@ -0,0 +1,27 @@
1/*
2 * AT32 System Manager interface.
3 *
4 * Copyright (C) 2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#ifndef __ASM_AVR32_AT32_SM_H__
11#define __ASM_AVR32_AT32_SM_H__
12
13struct irq_chip;
14struct platform_device;
15
16struct at32_sm {
17 spinlock_t lock;
18 void __iomem *regs;
19 struct irq_chip *eim_chip;
20 unsigned int eim_first_irq;
21 struct platform_device *pdev;
22};
23
24extern struct platform_device at32_sm_device;
25extern struct at32_sm system_manager;
26
27#endif /* __ASM_AVR32_AT32_SM_H__ */
diff --git a/include/asm-avr32/asm.h b/include/asm-avr32/asm.h
new file mode 100644
index 000000000000..515c7618952b
--- /dev/null
+++ b/include/asm-avr32/asm.h
@@ -0,0 +1,102 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_ASM_H__
9#define __ASM_AVR32_ASM_H__
10
11#include <asm/sysreg.h>
12#include <asm/asm-offsets.h>
13#include <asm/thread_info.h>
14
15#define mask_interrupts ssrf SR_GM_BIT
16#define mask_exceptions ssrf SR_EM_BIT
17#define unmask_interrupts csrf SR_GM_BIT
18#define unmask_exceptions csrf SR_EM_BIT
19
20#ifdef CONFIG_FRAME_POINTER
21 .macro save_fp
22 st.w --sp, r7
23 .endm
24 .macro restore_fp
25 ld.w r7, sp++
26 .endm
27 .macro zero_fp
28 mov r7, 0
29 .endm
30#else
31 .macro save_fp
32 .endm
33 .macro restore_fp
34 .endm
35 .macro zero_fp
36 .endm
37#endif
38 .macro get_thread_info reg
39 mov \reg, sp
40 andl \reg, ~(THREAD_SIZE - 1) & 0xffff
41 .endm
42
43 /* Save and restore registers */
44 .macro save_min sr, tmp=lr
45 pushm lr
46 mfsr \tmp, \sr
47 zero_fp
48 st.w --sp, \tmp
49 .endm
50
51 .macro restore_min sr, tmp=lr
52 ld.w \tmp, sp++
53 mtsr \sr, \tmp
54 popm lr
55 .endm
56
57 .macro save_half sr, tmp=lr
58 save_fp
59 pushm r8-r9,r10,r11,r12,lr
60 zero_fp
61 mfsr \tmp, \sr
62 st.w --sp, \tmp
63 .endm
64
65 .macro restore_half sr, tmp=lr
66 ld.w \tmp, sp++
67 mtsr \sr, \tmp
68 popm r8-r9,r10,r11,r12,lr
69 restore_fp
70 .endm
71
72 .macro save_full_user sr, tmp=lr
73 stmts --sp, r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12,sp,lr
74 st.w --sp, lr
75 zero_fp
76 mfsr \tmp, \sr
77 st.w --sp, \tmp
78 .endm
79
80 .macro restore_full_user sr, tmp=lr
81 ld.w \tmp, sp++
82 mtsr \sr, \tmp
83 ld.w lr, sp++
84 ldmts sp++, r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12,sp,lr
85 .endm
86
87 /* uaccess macros */
88 .macro branch_if_kernel scratch, label
89 get_thread_info \scratch
90 ld.w \scratch, \scratch[TI_flags]
91 bld \scratch, TIF_USERSPACE
92 brcc \label
93 .endm
94
95 .macro ret_if_privileged scratch, addr, size, ret
96 sub \scratch, \size, 1
97 add \scratch, \addr
98 retcs \ret
99 retmi \ret
100 .endm
101
102#endif /* __ASM_AVR32_ASM_H__ */
diff --git a/include/asm-avr32/atomic.h b/include/asm-avr32/atomic.h
new file mode 100644
index 000000000000..e0b9c44c126c
--- /dev/null
+++ b/include/asm-avr32/atomic.h
@@ -0,0 +1,201 @@
1/*
2 * Atomic operations that C can't guarantee us. Useful for
3 * resource counting etc.
4 *
5 * But use these as seldom as possible since they are slower than
6 * regular operations.
7 *
8 * Copyright (C) 2004-2006 Atmel Corporation
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14#ifndef __ASM_AVR32_ATOMIC_H
15#define __ASM_AVR32_ATOMIC_H
16
17#include <asm/system.h>
18
19typedef struct { volatile int counter; } atomic_t;
20#define ATOMIC_INIT(i) { (i) }
21
22#define atomic_read(v) ((v)->counter)
23#define atomic_set(v, i) (((v)->counter) = i)
24
25/*
26 * atomic_sub_return - subtract the atomic variable
27 * @i: integer value to subtract
28 * @v: pointer of type atomic_t
29 *
30 * Atomically subtracts @i from @v. Returns the resulting value.
31 */
32static inline int atomic_sub_return(int i, atomic_t *v)
33{
34 int result;
35
36 asm volatile(
37 "/* atomic_sub_return */\n"
38 "1: ssrf 5\n"
39 " ld.w %0, %2\n"
40 " sub %0, %3\n"
41 " stcond %1, %0\n"
42 " brne 1b"
43 : "=&r"(result), "=o"(v->counter)
44 : "m"(v->counter), "ir"(i)
45 : "cc");
46
47 return result;
48}
49
50/*
51 * atomic_add_return - add integer to atomic variable
52 * @i: integer value to add
53 * @v: pointer of type atomic_t
54 *
55 * Atomically adds @i to @v. Returns the resulting value.
56 */
57static inline int atomic_add_return(int i, atomic_t *v)
58{
59 int result;
60
61 if (__builtin_constant_p(i))
62 result = atomic_sub_return(-i, v);
63 else
64 asm volatile(
65 "/* atomic_add_return */\n"
66 "1: ssrf 5\n"
67 " ld.w %0, %1\n"
68 " add %0, %3\n"
69 " stcond %2, %0\n"
70 " brne 1b"
71 : "=&r"(result), "=o"(v->counter)
72 : "m"(v->counter), "r"(i)
73 : "cc", "memory");
74
75 return result;
76}
77
78/*
79 * atomic_sub_unless - sub unless the number is a given value
80 * @v: pointer of type atomic_t
81 * @a: the amount to add to v...
82 * @u: ...unless v is equal to u.
83 *
84 * If the atomic value v is not equal to u, this function subtracts a
85 * from v, and returns non zero. If v is equal to u then it returns
86 * zero. This is done as an atomic operation.
87*/
88static inline int atomic_sub_unless(atomic_t *v, int a, int u)
89{
90 int tmp, result = 0;
91
92 asm volatile(
93 "/* atomic_sub_unless */\n"
94 "1: ssrf 5\n"
95 " ld.w %0, %3\n"
96 " cp.w %0, %5\n"
97 " breq 1f\n"
98 " sub %0, %4\n"
99 " stcond %2, %0\n"
100 " brne 1b\n"
101 " mov %1, 1\n"
102 "1:"
103 : "=&r"(tmp), "=&r"(result), "=o"(v->counter)
104 : "m"(v->counter), "ir"(a), "ir"(u)
105 : "cc", "memory");
106
107 return result;
108}
109
110/*
111 * atomic_add_unless - add unless the number is a given value
112 * @v: pointer of type atomic_t
113 * @a: the amount to add to v...
114 * @u: ...unless v is equal to u.
115 *
116 * If the atomic value v is not equal to u, this function adds a to v,
117 * and returns non zero. If v is equal to u then it returns zero. This
118 * is done as an atomic operation.
119*/
120static inline int atomic_add_unless(atomic_t *v, int a, int u)
121{
122 int tmp, result;
123
124 if (__builtin_constant_p(a))
125 result = atomic_sub_unless(v, -a, u);
126 else {
127 result = 0;
128 asm volatile(
129 "/* atomic_add_unless */\n"
130 "1: ssrf 5\n"
131 " ld.w %0, %3\n"
132 " cp.w %0, %5\n"
133 " breq 1f\n"
134 " add %0, %4\n"
135 " stcond %2, %0\n"
136 " brne 1b\n"
137 " mov %1, 1\n"
138 "1:"
139 : "=&r"(tmp), "=&r"(result), "=o"(v->counter)
140 : "m"(v->counter), "r"(a), "ir"(u)
141 : "cc", "memory");
142 }
143
144 return result;
145}
146
147/*
148 * atomic_sub_if_positive - conditionally subtract integer from atomic variable
149 * @i: integer value to subtract
150 * @v: pointer of type atomic_t
151 *
152 * Atomically test @v and subtract @i if @v is greater or equal than @i.
153 * The function returns the old value of @v minus @i.
154 */
155static inline int atomic_sub_if_positive(int i, atomic_t *v)
156{
157 int result;
158
159 asm volatile(
160 "/* atomic_sub_if_positive */\n"
161 "1: ssrf 5\n"
162 " ld.w %0, %2\n"
163 " sub %0, %3\n"
164 " brlt 1f\n"
165 " stcond %1, %0\n"
166 " brne 1b\n"
167 "1:"
168 : "=&r"(result), "=o"(v->counter)
169 : "m"(v->counter), "ir"(i)
170 : "cc", "memory");
171
172 return result;
173}
174
175#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
176#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
177
178#define atomic_sub(i, v) (void)atomic_sub_return(i, v)
179#define atomic_add(i, v) (void)atomic_add_return(i, v)
180#define atomic_dec(v) atomic_sub(1, (v))
181#define atomic_inc(v) atomic_add(1, (v))
182
183#define atomic_dec_return(v) atomic_sub_return(1, v)
184#define atomic_inc_return(v) atomic_add_return(1, v)
185
186#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
187#define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0)
188#define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0)
189#define atomic_add_negative(i, v) (atomic_add_return(i, v) < 0)
190
191#define atomic_inc_not_zero(v) atomic_add_unless(v, 1, 0)
192#define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v)
193
194#define smp_mb__before_atomic_dec() barrier()
195#define smp_mb__after_atomic_dec() barrier()
196#define smp_mb__before_atomic_inc() barrier()
197#define smp_mb__after_atomic_inc() barrier()
198
199#include <asm-generic/atomic.h>
200
201#endif /* __ASM_AVR32_ATOMIC_H */
diff --git a/include/asm-avr32/auxvec.h b/include/asm-avr32/auxvec.h
new file mode 100644
index 000000000000..d5dd435bf8f4
--- /dev/null
+++ b/include/asm-avr32/auxvec.h
@@ -0,0 +1,4 @@
1#ifndef __ASM_AVR32_AUXVEC_H
2#define __ASM_AVR32_AUXVEC_H
3
4#endif /* __ASM_AVR32_AUXVEC_H */
diff --git a/include/asm-avr32/bitops.h b/include/asm-avr32/bitops.h
new file mode 100644
index 000000000000..5299f8c8e11d
--- /dev/null
+++ b/include/asm-avr32/bitops.h
@@ -0,0 +1,296 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_BITOPS_H
9#define __ASM_AVR32_BITOPS_H
10
11#include <asm/byteorder.h>
12#include <asm/system.h>
13
14/*
15 * clear_bit() doesn't provide any barrier for the compiler
16 */
17#define smp_mb__before_clear_bit() barrier()
18#define smp_mb__after_clear_bit() barrier()
19
20/*
21 * set_bit - Atomically set a bit in memory
22 * @nr: the bit to set
23 * @addr: the address to start counting from
24 *
25 * This function is atomic and may not be reordered. See __set_bit()
26 * if you do not require the atomic guarantees.
27 *
28 * Note that @nr may be almost arbitrarily large; this function is not
29 * restricted to acting on a single-word quantity.
30 */
31static inline void set_bit(int nr, volatile void * addr)
32{
33 unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
34 unsigned long tmp;
35
36 if (__builtin_constant_p(nr)) {
37 asm volatile(
38 "1: ssrf 5\n"
39 " ld.w %0, %2\n"
40 " sbr %0, %3\n"
41 " stcond %1, %0\n"
42 " brne 1b"
43 : "=&r"(tmp), "=o"(*p)
44 : "m"(*p), "i"(nr)
45 : "cc");
46 } else {
47 unsigned long mask = 1UL << (nr % BITS_PER_LONG);
48 asm volatile(
49 "1: ssrf 5\n"
50 " ld.w %0, %2\n"
51 " or %0, %3\n"
52 " stcond %1, %0\n"
53 " brne 1b"
54 : "=&r"(tmp), "=o"(*p)
55 : "m"(*p), "r"(mask)
56 : "cc");
57 }
58}
59
60/*
61 * clear_bit - Clears a bit in memory
62 * @nr: Bit to clear
63 * @addr: Address to start counting from
64 *
65 * clear_bit() is atomic and may not be reordered. However, it does
66 * not contain a memory barrier, so if it is used for locking purposes,
67 * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
68 * in order to ensure changes are visible on other processors.
69 */
70static inline void clear_bit(int nr, volatile void * addr)
71{
72 unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
73 unsigned long tmp;
74
75 if (__builtin_constant_p(nr)) {
76 asm volatile(
77 "1: ssrf 5\n"
78 " ld.w %0, %2\n"
79 " cbr %0, %3\n"
80 " stcond %1, %0\n"
81 " brne 1b"
82 : "=&r"(tmp), "=o"(*p)
83 : "m"(*p), "i"(nr)
84 : "cc");
85 } else {
86 unsigned long mask = 1UL << (nr % BITS_PER_LONG);
87 asm volatile(
88 "1: ssrf 5\n"
89 " ld.w %0, %2\n"
90 " andn %0, %3\n"
91 " stcond %1, %0\n"
92 " brne 1b"
93 : "=&r"(tmp), "=o"(*p)
94 : "m"(*p), "r"(mask)
95 : "cc");
96 }
97}
98
99/*
100 * change_bit - Toggle a bit in memory
101 * @nr: Bit to change
102 * @addr: Address to start counting from
103 *
104 * change_bit() is atomic and may not be reordered.
105 * Note that @nr may be almost arbitrarily large; this function is not
106 * restricted to acting on a single-word quantity.
107 */
108static inline void change_bit(int nr, volatile void * addr)
109{
110 unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
111 unsigned long mask = 1UL << (nr % BITS_PER_LONG);
112 unsigned long tmp;
113
114 asm volatile(
115 "1: ssrf 5\n"
116 " ld.w %0, %2\n"
117 " eor %0, %3\n"
118 " stcond %1, %0\n"
119 " brne 1b"
120 : "=&r"(tmp), "=o"(*p)
121 : "m"(*p), "r"(mask)
122 : "cc");
123}
124
125/*
126 * test_and_set_bit - Set a bit and return its old value
127 * @nr: Bit to set
128 * @addr: Address to count from
129 *
130 * This operation is atomic and cannot be reordered.
131 * It also implies a memory barrier.
132 */
133static inline int test_and_set_bit(int nr, volatile void * addr)
134{
135 unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
136 unsigned long mask = 1UL << (nr % BITS_PER_LONG);
137 unsigned long tmp, old;
138
139 if (__builtin_constant_p(nr)) {
140 asm volatile(
141 "1: ssrf 5\n"
142 " ld.w %0, %3\n"
143 " mov %2, %0\n"
144 " sbr %0, %4\n"
145 " stcond %1, %0\n"
146 " brne 1b"
147 : "=&r"(tmp), "=o"(*p), "=&r"(old)
148 : "m"(*p), "i"(nr)
149 : "memory", "cc");
150 } else {
151 asm volatile(
152 "1: ssrf 5\n"
153 " ld.w %2, %3\n"
154 " or %0, %2, %4\n"
155 " stcond %1, %0\n"
156 " brne 1b"
157 : "=&r"(tmp), "=o"(*p), "=&r"(old)
158 : "m"(*p), "r"(mask)
159 : "memory", "cc");
160 }
161
162 return (old & mask) != 0;
163}
164
165/*
166 * test_and_clear_bit - Clear a bit and return its old value
167 * @nr: Bit to clear
168 * @addr: Address to count from
169 *
170 * This operation is atomic and cannot be reordered.
171 * It also implies a memory barrier.
172 */
173static inline int test_and_clear_bit(int nr, volatile void * addr)
174{
175 unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
176 unsigned long mask = 1UL << (nr % BITS_PER_LONG);
177 unsigned long tmp, old;
178
179 if (__builtin_constant_p(nr)) {
180 asm volatile(
181 "1: ssrf 5\n"
182 " ld.w %0, %3\n"
183 " mov %2, %0\n"
184 " cbr %0, %4\n"
185 " stcond %1, %0\n"
186 " brne 1b"
187 : "=&r"(tmp), "=o"(*p), "=&r"(old)
188 : "m"(*p), "i"(nr)
189 : "memory", "cc");
190 } else {
191 asm volatile(
192 "1: ssrf 5\n"
193 " ld.w %0, %3\n"
194 " mov %2, %0\n"
195 " andn %0, %4\n"
196 " stcond %1, %0\n"
197 " brne 1b"
198 : "=&r"(tmp), "=o"(*p), "=&r"(old)
199 : "m"(*p), "r"(mask)
200 : "memory", "cc");
201 }
202
203 return (old & mask) != 0;
204}
205
206/*
207 * test_and_change_bit - Change a bit and return its old value
208 * @nr: Bit to change
209 * @addr: Address to count from
210 *
211 * This operation is atomic and cannot be reordered.
212 * It also implies a memory barrier.
213 */
214static inline int test_and_change_bit(int nr, volatile void * addr)
215{
216 unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG;
217 unsigned long mask = 1UL << (nr % BITS_PER_LONG);
218 unsigned long tmp, old;
219
220 asm volatile(
221 "1: ssrf 5\n"
222 " ld.w %2, %3\n"
223 " eor %0, %2, %4\n"
224 " stcond %1, %0\n"
225 " brne 1b"
226 : "=&r"(tmp), "=o"(*p), "=&r"(old)
227 : "m"(*p), "r"(mask)
228 : "memory", "cc");
229
230 return (old & mask) != 0;
231}
232
233#include <asm-generic/bitops/non-atomic.h>
234
235/* Find First bit Set */
236static inline unsigned long __ffs(unsigned long word)
237{
238 unsigned long result;
239
240 asm("brev %1\n\t"
241 "clz %0,%1"
242 : "=r"(result), "=&r"(word)
243 : "1"(word));
244 return result;
245}
246
247/* Find First Zero */
248static inline unsigned long ffz(unsigned long word)
249{
250 return __ffs(~word);
251}
252
253/* Find Last bit Set */
254static inline int fls(unsigned long word)
255{
256 unsigned long result;
257
258 asm("clz %0,%1" : "=r"(result) : "r"(word));
259 return 32 - result;
260}
261
262unsigned long find_first_zero_bit(const unsigned long *addr,
263 unsigned long size);
264unsigned long find_next_zero_bit(const unsigned long *addr,
265 unsigned long size,
266 unsigned long offset);
267unsigned long find_first_bit(const unsigned long *addr,
268 unsigned long size);
269unsigned long find_next_bit(const unsigned long *addr,
270 unsigned long size,
271 unsigned long offset);
272
273/*
274 * ffs: find first bit set. This is defined the same way as
275 * the libc and compiler builtin ffs routines, therefore
276 * differs in spirit from the above ffz (man ffs).
277 *
278 * The difference is that bit numbering starts at 1, and if no bit is set,
279 * the function returns 0.
280 */
281static inline int ffs(unsigned long word)
282{
283 if(word == 0)
284 return 0;
285 return __ffs(word) + 1;
286}
287
288#include <asm-generic/bitops/fls64.h>
289#include <asm-generic/bitops/sched.h>
290#include <asm-generic/bitops/hweight.h>
291
292#include <asm-generic/bitops/ext2-non-atomic.h>
293#include <asm-generic/bitops/ext2-atomic.h>
294#include <asm-generic/bitops/minix-le.h>
295
296#endif /* __ASM_AVR32_BITOPS_H */
diff --git a/include/asm-avr32/bug.h b/include/asm-avr32/bug.h
new file mode 100644
index 000000000000..521766bc9366
--- /dev/null
+++ b/include/asm-avr32/bug.h
@@ -0,0 +1,47 @@
1/*
2 * Copyright (C) 2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_BUG_H
9#define __ASM_AVR32_BUG_H
10
11#ifdef CONFIG_BUG
12
13/*
14 * According to our Chief Architect, this compact opcode is very
15 * unlikely to ever be implemented.
16 */
17#define AVR32_BUG_OPCODE 0x5df0
18
19#ifdef CONFIG_DEBUG_BUGVERBOSE
20
21#define BUG() \
22 do { \
23 asm volatile(".hword %0\n\t" \
24 ".hword %1\n\t" \
25 ".long %2" \
26 : \
27 : "n"(AVR32_BUG_OPCODE), \
28 "i"(__LINE__), "X"(__FILE__)); \
29 } while (0)
30
31#else
32
33#define BUG() \
34 do { \
35 asm volatile(".hword %0\n\t" \
36 : : "n"(AVR32_BUG_OPCODE)); \
37 } while (0)
38
39#endif /* CONFIG_DEBUG_BUGVERBOSE */
40
41#define HAVE_ARCH_BUG
42
43#endif /* CONFIG_BUG */
44
45#include <asm-generic/bug.h>
46
47#endif /* __ASM_AVR32_BUG_H */
diff --git a/include/asm-avr32/bugs.h b/include/asm-avr32/bugs.h
new file mode 100644
index 000000000000..7635e770622e
--- /dev/null
+++ b/include/asm-avr32/bugs.h
@@ -0,0 +1,15 @@
1/*
2 * This is included by init/main.c to check for architecture-dependent bugs.
3 *
4 * Needs:
5 * void check_bugs(void);
6 */
7#ifndef __ASM_AVR32_BUGS_H
8#define __ASM_AVR32_BUGS_H
9
10static void __init check_bugs(void)
11{
12 cpu_data->loops_per_jiffy = loops_per_jiffy;
13}
14
15#endif /* __ASM_AVR32_BUGS_H */
diff --git a/include/asm-avr32/byteorder.h b/include/asm-avr32/byteorder.h
new file mode 100644
index 000000000000..402ff4125cdc
--- /dev/null
+++ b/include/asm-avr32/byteorder.h
@@ -0,0 +1,25 @@
1/*
2 * AVR32 endian-conversion functions.
3 */
4#ifndef __ASM_AVR32_BYTEORDER_H
5#define __ASM_AVR32_BYTEORDER_H
6
7#include <asm/types.h>
8#include <linux/compiler.h>
9
10#ifdef __CHECKER__
11extern unsigned long __builtin_bswap_32(unsigned long x);
12extern unsigned short __builtin_bswap_16(unsigned short x);
13#endif
14
15#define __arch__swab32(x) __builtin_bswap_32(x)
16#define __arch__swab16(x) __builtin_bswap_16(x)
17
18#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
19# define __BYTEORDER_HAS_U64__
20# define __SWAB_64_THRU_32__
21#endif
22
23#include <linux/byteorder/big_endian.h>
24
25#endif /* __ASM_AVR32_BYTEORDER_H */
diff --git a/include/asm-avr32/cache.h b/include/asm-avr32/cache.h
new file mode 100644
index 000000000000..dabb955f3c00
--- /dev/null
+++ b/include/asm-avr32/cache.h
@@ -0,0 +1,29 @@
1#ifndef __ASM_AVR32_CACHE_H
2#define __ASM_AVR32_CACHE_H
3
4#define L1_CACHE_SHIFT 5
5#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
6
7#ifndef __ASSEMBLER__
8struct cache_info {
9 unsigned int ways;
10 unsigned int sets;
11 unsigned int linesz;
12};
13#endif /* __ASSEMBLER */
14
15/* Cache operation constants */
16#define ICACHE_FLUSH 0x00
17#define ICACHE_INVALIDATE 0x01
18#define ICACHE_LOCK 0x02
19#define ICACHE_UNLOCK 0x03
20#define ICACHE_PREFETCH 0x04
21
22#define DCACHE_FLUSH 0x08
23#define DCACHE_LOCK 0x09
24#define DCACHE_UNLOCK 0x0a
25#define DCACHE_INVALIDATE 0x0b
26#define DCACHE_CLEAN 0x0c
27#define DCACHE_CLEAN_INVAL 0x0d
28
29#endif /* __ASM_AVR32_CACHE_H */
diff --git a/include/asm-avr32/cachectl.h b/include/asm-avr32/cachectl.h
new file mode 100644
index 000000000000..4faf1ce60061
--- /dev/null
+++ b/include/asm-avr32/cachectl.h
@@ -0,0 +1,11 @@
1#ifndef __ASM_AVR32_CACHECTL_H
2#define __ASM_AVR32_CACHECTL_H
3
4/*
5 * Operations that can be performed through the cacheflush system call
6 */
7
8/* Clean the data cache, then invalidate the icache */
9#define CACHE_IFLUSH 0
10
11#endif /* __ASM_AVR32_CACHECTL_H */
diff --git a/include/asm-avr32/cacheflush.h b/include/asm-avr32/cacheflush.h
new file mode 100644
index 000000000000..f1bf1708980e
--- /dev/null
+++ b/include/asm-avr32/cacheflush.h
@@ -0,0 +1,129 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_CACHEFLUSH_H
9#define __ASM_AVR32_CACHEFLUSH_H
10
11/* Keep includes the same across arches. */
12#include <linux/mm.h>
13
14#define CACHE_OP_ICACHE_INVALIDATE 0x01
15#define CACHE_OP_DCACHE_INVALIDATE 0x0b
16#define CACHE_OP_DCACHE_CLEAN 0x0c
17#define CACHE_OP_DCACHE_CLEAN_INVAL 0x0d
18
19/*
20 * Invalidate any cacheline containing virtual address vaddr without
21 * writing anything back to memory.
22 *
23 * Note that this function may corrupt unrelated data structures when
24 * applied on buffers that are not cacheline aligned in both ends.
25 */
26static inline void invalidate_dcache_line(void *vaddr)
27{
28 asm volatile("cache %0[0], %1"
29 :
30 : "r"(vaddr), "n"(CACHE_OP_DCACHE_INVALIDATE)
31 : "memory");
32}
33
34/*
35 * Make sure any cacheline containing virtual address vaddr is written
36 * to memory.
37 */
38static inline void clean_dcache_line(void *vaddr)
39{
40 asm volatile("cache %0[0], %1"
41 :
42 : "r"(vaddr), "n"(CACHE_OP_DCACHE_CLEAN)
43 : "memory");
44}
45
46/*
47 * Make sure any cacheline containing virtual address vaddr is written
48 * to memory and then invalidate it.
49 */
50static inline void flush_dcache_line(void *vaddr)
51{
52 asm volatile("cache %0[0], %1"
53 :
54 : "r"(vaddr), "n"(CACHE_OP_DCACHE_CLEAN_INVAL)
55 : "memory");
56}
57
58/*
59 * Invalidate any instruction cacheline containing virtual address
60 * vaddr.
61 */
62static inline void invalidate_icache_line(void *vaddr)
63{
64 asm volatile("cache %0[0], %1"
65 :
66 : "r"(vaddr), "n"(CACHE_OP_ICACHE_INVALIDATE)
67 : "memory");
68}
69
70/*
71 * Applies the above functions on all lines that are touched by the
72 * specified virtual address range.
73 */
74void invalidate_dcache_region(void *start, size_t len);
75void clean_dcache_region(void *start, size_t len);
76void flush_dcache_region(void *start, size_t len);
77void invalidate_icache_region(void *start, size_t len);
78
79/*
80 * Make sure any pending writes are completed before continuing.
81 */
82#define flush_write_buffer() asm volatile("sync 0" : : : "memory")
83
84/*
85 * The following functions are called when a virtual mapping changes.
86 * We do not need to flush anything in this case.
87 */
88#define flush_cache_all() do { } while (0)
89#define flush_cache_mm(mm) do { } while (0)
90#define flush_cache_range(vma, start, end) do { } while (0)
91#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
92#define flush_cache_vmap(start, end) do { } while (0)
93#define flush_cache_vunmap(start, end) do { } while (0)
94
95/*
96 * I think we need to implement this one to be able to reliably
97 * execute pages from RAMDISK. However, if we implement the
98 * flush_dcache_*() functions, it might not be needed anymore.
99 *
100 * #define flush_icache_page(vma, page) do { } while (0)
101 */
102extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
103
104/*
105 * These are (I think) related to D-cache aliasing. We might need to
106 * do something here, but only for certain configurations. No such
107 * configurations exist at this time.
108 */
109#define flush_dcache_page(page) do { } while (0)
110#define flush_dcache_mmap_lock(page) do { } while (0)
111#define flush_dcache_mmap_unlock(page) do { } while (0)
112
113/*
114 * These are for I/D cache coherency. In this case, we do need to
115 * flush with all configurations.
116 */
117extern void flush_icache_range(unsigned long start, unsigned long end);
118extern void flush_icache_user_range(struct vm_area_struct *vma,
119 struct page *page,
120 unsigned long addr, int len);
121
122#define copy_to_user_page(vma, page, vaddr, dst, src, len) do { \
123 memcpy(dst, src, len); \
124 flush_icache_user_range(vma, page, vaddr, len); \
125} while(0)
126#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
127 memcpy(dst, src, len)
128
129#endif /* __ASM_AVR32_CACHEFLUSH_H */
diff --git a/include/asm-avr32/checksum.h b/include/asm-avr32/checksum.h
new file mode 100644
index 000000000000..41b7af09edc4
--- /dev/null
+++ b/include/asm-avr32/checksum.h
@@ -0,0 +1,156 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_CHECKSUM_H
9#define __ASM_AVR32_CHECKSUM_H
10
11/*
12 * computes the checksum of a memory block at buff, length len,
13 * and adds in "sum" (32-bit)
14 *
15 * returns a 32-bit number suitable for feeding into itself
16 * or csum_tcpudp_magic
17 *
18 * this function must be called with even lengths, except
19 * for the last fragment, which may be odd
20 *
21 * it's best to have buff aligned on a 32-bit boundary
22 */
23unsigned int csum_partial(const unsigned char * buff, int len,
24 unsigned int sum);
25
26/*
27 * the same as csum_partial, but copies from src while it
28 * checksums, and handles user-space pointer exceptions correctly, when needed.
29 *
30 * here even more important to align src and dst on a 32-bit (or even
31 * better 64-bit) boundary
32 */
33unsigned int csum_partial_copy_generic(const char *src, char *dst, int len,
34 int sum, int *src_err_ptr,
35 int *dst_err_ptr);
36
37/*
38 * Note: when you get a NULL pointer exception here this means someone
39 * passed in an incorrect kernel address to one of these functions.
40 *
41 * If you use these functions directly please don't forget the
42 * verify_area().
43 */
44static inline
45unsigned int csum_partial_copy_nocheck(const char *src, char *dst,
46 int len, int sum)
47{
48 return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
49}
50
51static inline
52unsigned int csum_partial_copy_from_user (const char __user *src, char *dst,
53 int len, int sum, int *err_ptr)
54{
55 return csum_partial_copy_generic((const char __force *)src, dst, len,
56 sum, err_ptr, NULL);
57}
58
59/*
60 * This is a version of ip_compute_csum() optimized for IP headers,
61 * which always checksum on 4 octet boundaries.
62 */
63static inline unsigned short ip_fast_csum(unsigned char *iph,
64 unsigned int ihl)
65{
66 unsigned int sum, tmp;
67
68 __asm__ __volatile__(
69 " ld.w %0, %1++\n"
70 " ld.w %3, %1++\n"
71 " sub %2, 4\n"
72 " add %0, %3\n"
73 " ld.w %3, %1++\n"
74 " adc %0, %0, %3\n"
75 " ld.w %3, %1++\n"
76 " adc %0, %0, %3\n"
77 " acr %0\n"
78 "1: ld.w %3, %1++\n"
79 " add %0, %3\n"
80 " acr %0\n"
81 " sub %2, 1\n"
82 " brne 1b\n"
83 " lsl %3, %0, 16\n"
84 " andl %0, 0\n"
85 " mov %2, 0xffff\n"
86 " add %0, %3\n"
87 " adc %0, %0, %2\n"
88 " com %0\n"
89 " lsr %0, 16\n"
90 : "=r"(sum), "=r"(iph), "=r"(ihl), "=r"(tmp)
91 : "1"(iph), "2"(ihl)
92 : "memory", "cc");
93 return sum;
94}
95
96/*
97 * Fold a partial checksum
98 */
99
100static inline unsigned int csum_fold(unsigned int sum)
101{
102 unsigned int tmp;
103
104 asm(" bfextu %1, %0, 0, 16\n"
105 " lsr %0, 16\n"
106 " add %0, %1\n"
107 " bfextu %1, %0, 16, 16\n"
108 " add %0, %1"
109 : "=&r"(sum), "=&r"(tmp)
110 : "0"(sum));
111
112 return ~sum;
113}
114
115static inline unsigned long csum_tcpudp_nofold(unsigned long saddr,
116 unsigned long daddr,
117 unsigned short len,
118 unsigned short proto,
119 unsigned int sum)
120{
121 asm(" add %0, %1\n"
122 " adc %0, %0, %2\n"
123 " adc %0, %0, %3\n"
124 " acr %0"
125 : "=r"(sum)
126 : "r"(daddr), "r"(saddr), "r"(ntohs(len) | (proto << 16)),
127 "0"(sum)
128 : "cc");
129
130 return sum;
131}
132
133/*
134 * computes the checksum of the TCP/UDP pseudo-header
135 * returns a 16-bit checksum, already complemented
136 */
137static inline unsigned short int csum_tcpudp_magic(unsigned long saddr,
138 unsigned long daddr,
139 unsigned short len,
140 unsigned short proto,
141 unsigned int sum)
142{
143 return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
144}
145
146/*
147 * this routine is used for miscellaneous IP-like checksums, mainly
148 * in icmp.c
149 */
150
151static inline unsigned short ip_compute_csum(unsigned char * buff, int len)
152{
153 return csum_fold(csum_partial(buff, len, 0));
154}
155
156#endif /* __ASM_AVR32_CHECKSUM_H */
diff --git a/include/asm-avr32/cputime.h b/include/asm-avr32/cputime.h
new file mode 100644
index 000000000000..e87e0f81cbeb
--- /dev/null
+++ b/include/asm-avr32/cputime.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_CPUTIME_H
2#define __ASM_AVR32_CPUTIME_H
3
4#include <asm-generic/cputime.h>
5
6#endif /* __ASM_AVR32_CPUTIME_H */
diff --git a/include/asm-avr32/current.h b/include/asm-avr32/current.h
new file mode 100644
index 000000000000..c7b0549eab8a
--- /dev/null
+++ b/include/asm-avr32/current.h
@@ -0,0 +1,15 @@
1#ifndef __ASM_AVR32_CURRENT_H
2#define __ASM_AVR32_CURRENT_H
3
4#include <linux/thread_info.h>
5
6struct task_struct;
7
8inline static struct task_struct * get_current(void)
9{
10 return current_thread_info()->task;
11}
12
13#define current get_current()
14
15#endif /* __ASM_AVR32_CURRENT_H */
diff --git a/include/asm-avr32/delay.h b/include/asm-avr32/delay.h
new file mode 100644
index 000000000000..cc3b2e3343b3
--- /dev/null
+++ b/include/asm-avr32/delay.h
@@ -0,0 +1,26 @@
1#ifndef __ASM_AVR32_DELAY_H
2#define __ASM_AVR32_DELAY_H
3
4/*
5 * Copyright (C) 1993 Linus Torvalds
6 *
7 * Delay routines calling functions in arch/avr32/lib/delay.c
8 */
9
10extern void __bad_udelay(void);
11extern void __bad_ndelay(void);
12
13extern void __udelay(unsigned long usecs);
14extern void __ndelay(unsigned long nsecs);
15extern void __const_udelay(unsigned long usecs);
16extern void __delay(unsigned long loops);
17
18#define udelay(n) (__builtin_constant_p(n) ? \
19 ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \
20 __udelay(n))
21
22#define ndelay(n) (__builtin_constant_p(n) ? \
23 ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
24 __ndelay(n))
25
26#endif /* __ASM_AVR32_DELAY_H */
diff --git a/include/asm-avr32/div64.h b/include/asm-avr32/div64.h
new file mode 100644
index 000000000000..d7ddd4fdeca6
--- /dev/null
+++ b/include/asm-avr32/div64.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_DIV64_H
2#define __ASM_AVR32_DIV64_H
3
4#include <asm-generic/div64.h>
5
6#endif /* __ASM_AVR32_DIV64_H */
diff --git a/include/asm-avr32/dma-mapping.h b/include/asm-avr32/dma-mapping.h
new file mode 100644
index 000000000000..4c40cb41cdf8
--- /dev/null
+++ b/include/asm-avr32/dma-mapping.h
@@ -0,0 +1,320 @@
1#ifndef __ASM_AVR32_DMA_MAPPING_H
2#define __ASM_AVR32_DMA_MAPPING_H
3
4#include <linux/mm.h>
5#include <linux/device.h>
6#include <asm/scatterlist.h>
7#include <asm/processor.h>
8#include <asm/cacheflush.h>
9#include <asm/io.h>
10
11extern void dma_cache_sync(void *vaddr, size_t size, int direction);
12
13/*
14 * Return whether the given device DMA address mask can be supported
15 * properly. For example, if your device can only drive the low 24-bits
16 * during bus mastering, then you would pass 0x00ffffff as the mask
17 * to this function.
18 */
19static inline int dma_supported(struct device *dev, u64 mask)
20{
21 /* Fix when needed. I really don't know of any limitations */
22 return 1;
23}
24
25static inline int dma_set_mask(struct device *dev, u64 dma_mask)
26{
27 if (!dev->dma_mask || !dma_supported(dev, dma_mask))
28 return -EIO;
29
30 *dev->dma_mask = dma_mask;
31 return 0;
32}
33
34/**
35 * dma_alloc_coherent - allocate consistent memory for DMA
36 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
37 * @size: required memory size
38 * @handle: bus-specific DMA address
39 *
40 * Allocate some uncached, unbuffered memory for a device for
41 * performing DMA. This function allocates pages, and will
42 * return the CPU-viewed address, and sets @handle to be the
43 * device-viewed address.
44 */
45extern void *dma_alloc_coherent(struct device *dev, size_t size,
46 dma_addr_t *handle, gfp_t gfp);
47
48/**
49 * dma_free_coherent - free memory allocated by dma_alloc_coherent
50 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
51 * @size: size of memory originally requested in dma_alloc_coherent
52 * @cpu_addr: CPU-view address returned from dma_alloc_coherent
53 * @handle: device-view address returned from dma_alloc_coherent
54 *
55 * Free (and unmap) a DMA buffer previously allocated by
56 * dma_alloc_coherent().
57 *
58 * References to memory and mappings associated with cpu_addr/handle
59 * during and after this call executing are illegal.
60 */
61extern void dma_free_coherent(struct device *dev, size_t size,
62 void *cpu_addr, dma_addr_t handle);
63
64/**
65 * dma_alloc_writecombine - allocate write-combining memory for DMA
66 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
67 * @size: required memory size
68 * @handle: bus-specific DMA address
69 *
70 * Allocate some uncached, buffered memory for a device for
71 * performing DMA. This function allocates pages, and will
72 * return the CPU-viewed address, and sets @handle to be the
73 * device-viewed address.
74 */
75extern void *dma_alloc_writecombine(struct device *dev, size_t size,
76 dma_addr_t *handle, gfp_t gfp);
77
78/**
79 * dma_free_coherent - free memory allocated by dma_alloc_writecombine
80 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
81 * @size: size of memory originally requested in dma_alloc_writecombine
82 * @cpu_addr: CPU-view address returned from dma_alloc_writecombine
83 * @handle: device-view address returned from dma_alloc_writecombine
84 *
85 * Free (and unmap) a DMA buffer previously allocated by
86 * dma_alloc_writecombine().
87 *
88 * References to memory and mappings associated with cpu_addr/handle
89 * during and after this call executing are illegal.
90 */
91extern void dma_free_writecombine(struct device *dev, size_t size,
92 void *cpu_addr, dma_addr_t handle);
93
94/**
95 * dma_map_single - map a single buffer for streaming DMA
96 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
97 * @cpu_addr: CPU direct mapped address of buffer
98 * @size: size of buffer to map
99 * @dir: DMA transfer direction
100 *
101 * Ensure that any data held in the cache is appropriately discarded
102 * or written back.
103 *
104 * The device owns this memory once this call has completed. The CPU
105 * can regain ownership by calling dma_unmap_single() or dma_sync_single().
106 */
107static inline dma_addr_t
108dma_map_single(struct device *dev, void *cpu_addr, size_t size,
109 enum dma_data_direction direction)
110{
111 dma_cache_sync(cpu_addr, size, direction);
112 return virt_to_bus(cpu_addr);
113}
114
115/**
116 * dma_unmap_single - unmap a single buffer previously mapped
117 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
118 * @handle: DMA address of buffer
119 * @size: size of buffer to map
120 * @dir: DMA transfer direction
121 *
122 * Unmap a single streaming mode DMA translation. The handle and size
123 * must match what was provided in the previous dma_map_single() call.
124 * All other usages are undefined.
125 *
126 * After this call, reads by the CPU to the buffer are guaranteed to see
127 * whatever the device wrote there.
128 */
129static inline void
130dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
131 enum dma_data_direction direction)
132{
133
134}
135
136/**
137 * dma_map_page - map a portion of a page for streaming DMA
138 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
139 * @page: page that buffer resides in
140 * @offset: offset into page for start of buffer
141 * @size: size of buffer to map
142 * @dir: DMA transfer direction
143 *
144 * Ensure that any data held in the cache is appropriately discarded
145 * or written back.
146 *
147 * The device owns this memory once this call has completed. The CPU
148 * can regain ownership by calling dma_unmap_page() or dma_sync_single().
149 */
150static inline dma_addr_t
151dma_map_page(struct device *dev, struct page *page,
152 unsigned long offset, size_t size,
153 enum dma_data_direction direction)
154{
155 return dma_map_single(dev, page_address(page) + offset,
156 size, direction);
157}
158
159/**
160 * dma_unmap_page - unmap a buffer previously mapped through dma_map_page()
161 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
162 * @handle: DMA address of buffer
163 * @size: size of buffer to map
164 * @dir: DMA transfer direction
165 *
166 * Unmap a single streaming mode DMA translation. The handle and size
167 * must match what was provided in the previous dma_map_single() call.
168 * All other usages are undefined.
169 *
170 * After this call, reads by the CPU to the buffer are guaranteed to see
171 * whatever the device wrote there.
172 */
173static inline void
174dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
175 enum dma_data_direction direction)
176{
177 dma_unmap_single(dev, dma_address, size, direction);
178}
179
180/**
181 * dma_map_sg - map a set of SG buffers for streaming mode DMA
182 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
183 * @sg: list of buffers
184 * @nents: number of buffers to map
185 * @dir: DMA transfer direction
186 *
187 * Map a set of buffers described by scatterlist in streaming
188 * mode for DMA. This is the scatter-gather version of the
189 * above pci_map_single interface. Here the scatter gather list
190 * elements are each tagged with the appropriate dma address
191 * and length. They are obtained via sg_dma_{address,length}(SG).
192 *
193 * NOTE: An implementation may be able to use a smaller number of
194 * DMA address/length pairs than there are SG table elements.
195 * (for example via virtual mapping capabilities)
196 * The routine returns the number of addr/length pairs actually
197 * used, at most nents.
198 *
199 * Device ownership issues as mentioned above for pci_map_single are
200 * the same here.
201 */
202static inline int
203dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
204 enum dma_data_direction direction)
205{
206 int i;
207
208 for (i = 0; i < nents; i++) {
209 char *virt;
210
211 sg[i].dma_address = page_to_bus(sg[i].page) + sg[i].offset;
212 virt = page_address(sg[i].page) + sg[i].offset;
213 dma_cache_sync(virt, sg[i].length, direction);
214 }
215
216 return nents;
217}
218
219/**
220 * dma_unmap_sg - unmap a set of SG buffers mapped by dma_map_sg
221 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
222 * @sg: list of buffers
223 * @nents: number of buffers to map
224 * @dir: DMA transfer direction
225 *
226 * Unmap a set of streaming mode DMA translations.
227 * Again, CPU read rules concerning calls here are the same as for
228 * pci_unmap_single() above.
229 */
230static inline void
231dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
232 enum dma_data_direction direction)
233{
234
235}
236
237/**
238 * dma_sync_single_for_cpu
239 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
240 * @handle: DMA address of buffer
241 * @size: size of buffer to map
242 * @dir: DMA transfer direction
243 *
244 * Make physical memory consistent for a single streaming mode DMA
245 * translation after a transfer.
246 *
247 * If you perform a dma_map_single() but wish to interrogate the
248 * buffer using the cpu, yet do not wish to teardown the DMA mapping,
249 * you must call this function before doing so. At the next point you
250 * give the DMA address back to the card, you must first perform a
251 * dma_sync_single_for_device, and then the device again owns the
252 * buffer.
253 */
254static inline void
255dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
256 size_t size, enum dma_data_direction direction)
257{
258 dma_cache_sync(bus_to_virt(dma_handle), size, direction);
259}
260
261static inline void
262dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
263 size_t size, enum dma_data_direction direction)
264{
265 dma_cache_sync(bus_to_virt(dma_handle), size, direction);
266}
267
268/**
269 * dma_sync_sg_for_cpu
270 * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
271 * @sg: list of buffers
272 * @nents: number of buffers to map
273 * @dir: DMA transfer direction
274 *
275 * Make physical memory consistent for a set of streaming
276 * mode DMA translations after a transfer.
277 *
278 * The same as dma_sync_single_for_* but for a scatter-gather list,
279 * same rules and usage.
280 */
281static inline void
282dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
283 int nents, enum dma_data_direction direction)
284{
285 int i;
286
287 for (i = 0; i < nents; i++) {
288 dma_cache_sync(page_address(sg[i].page) + sg[i].offset,
289 sg[i].length, direction);
290 }
291}
292
293static inline void
294dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
295 int nents, enum dma_data_direction direction)
296{
297 int i;
298
299 for (i = 0; i < nents; i++) {
300 dma_cache_sync(page_address(sg[i].page) + sg[i].offset,
301 sg[i].length, direction);
302 }
303}
304
305/* Now for the API extensions over the pci_ one */
306
307#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
308#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
309
310static inline int dma_is_consistent(dma_addr_t dma_addr)
311{
312 return 1;
313}
314
315static inline int dma_get_cache_alignment(void)
316{
317 return boot_cpu_data.dcache.linesz;
318}
319
320#endif /* __ASM_AVR32_DMA_MAPPING_H */
diff --git a/include/asm-avr32/dma.h b/include/asm-avr32/dma.h
new file mode 100644
index 000000000000..9e91205590ac
--- /dev/null
+++ b/include/asm-avr32/dma.h
@@ -0,0 +1,8 @@
1#ifndef __ASM_AVR32_DMA_H
2#define __ASM_AVR32_DMA_H
3
4/* The maximum address that we can perform a DMA transfer to on this platform.
5 * Not really applicable to AVR32, but some functions need it. */
6#define MAX_DMA_ADDRESS 0xffffffff
7
8#endif /* __ASM_AVR32_DMA_H */
diff --git a/include/asm-avr32/elf.h b/include/asm-avr32/elf.h
new file mode 100644
index 000000000000..d334b4994d2d
--- /dev/null
+++ b/include/asm-avr32/elf.h
@@ -0,0 +1,110 @@
1#ifndef __ASM_AVR32_ELF_H
2#define __ASM_AVR32_ELF_H
3
4/* AVR32 relocation numbers */
5#define R_AVR32_NONE 0
6#define R_AVR32_32 1
7#define R_AVR32_16 2
8#define R_AVR32_8 3
9#define R_AVR32_32_PCREL 4
10#define R_AVR32_16_PCREL 5
11#define R_AVR32_8_PCREL 6
12#define R_AVR32_DIFF32 7
13#define R_AVR32_DIFF16 8
14#define R_AVR32_DIFF8 9
15#define R_AVR32_GOT32 10
16#define R_AVR32_GOT16 11
17#define R_AVR32_GOT8 12
18#define R_AVR32_21S 13
19#define R_AVR32_16U 14
20#define R_AVR32_16S 15
21#define R_AVR32_8S 16
22#define R_AVR32_8S_EXT 17
23#define R_AVR32_22H_PCREL 18
24#define R_AVR32_18W_PCREL 19
25#define R_AVR32_16B_PCREL 20
26#define R_AVR32_16N_PCREL 21
27#define R_AVR32_14UW_PCREL 22
28#define R_AVR32_11H_PCREL 23
29#define R_AVR32_10UW_PCREL 24
30#define R_AVR32_9H_PCREL 25
31#define R_AVR32_9UW_PCREL 26
32#define R_AVR32_HI16 27
33#define R_AVR32_LO16 28
34#define R_AVR32_GOTPC 29
35#define R_AVR32_GOTCALL 30
36#define R_AVR32_LDA_GOT 31
37#define R_AVR32_GOT21S 32
38#define R_AVR32_GOT18SW 33
39#define R_AVR32_GOT16S 34
40#define R_AVR32_GOT7UW 35
41#define R_AVR32_32_CPENT 36
42#define R_AVR32_CPCALL 37
43#define R_AVR32_16_CP 38
44#define R_AVR32_9W_CP 39
45#define R_AVR32_RELATIVE 40
46#define R_AVR32_GLOB_DAT 41
47#define R_AVR32_JMP_SLOT 42
48#define R_AVR32_ALIGN 43
49
50/*
51 * ELF register definitions..
52 */
53
54#include <asm/ptrace.h>
55#include <asm/user.h>
56
57typedef unsigned long elf_greg_t;
58
59#define ELF_NGREG (sizeof (struct pt_regs) / sizeof (elf_greg_t))
60typedef elf_greg_t elf_gregset_t[ELF_NGREG];
61
62typedef struct user_fpu_struct elf_fpregset_t;
63
64/*
65 * This is used to ensure we don't load something for the wrong architecture.
66 */
67#define elf_check_arch(x) ( (x)->e_machine == EM_AVR32 )
68
69/*
70 * These are used to set parameters in the core dumps.
71 */
72#define ELF_CLASS ELFCLASS32
73#ifdef __LITTLE_ENDIAN__
74#define ELF_DATA ELFDATA2LSB
75#else
76#define ELF_DATA ELFDATA2MSB
77#endif
78#define ELF_ARCH EM_AVR32
79
80#define USE_ELF_CORE_DUMP
81#define ELF_EXEC_PAGESIZE 4096
82
83/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
84 use of this is to invoke "./ld.so someprog" to test out a new version of
85 the loader. We need to make sure that it is out of the way of the program
86 that it will "exec", and that there is sufficient room for the brk. */
87
88#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
89
90
91/* This yields a mask that user programs can use to figure out what
92 instruction set this CPU supports. This could be done in user space,
93 but it's not easy, and we've already done it here. */
94
95#define ELF_HWCAP (0)
96
97/* This yields a string that ld.so will use to load implementation
98 specific libraries for optimization. This is more specific in
99 intent than poking at uname or /proc/cpuinfo.
100
101 For the moment, we have only optimizations for the Intel generations,
102 but that could change... */
103
104#define ELF_PLATFORM (NULL)
105
106#ifdef __KERNEL__
107#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
108#endif
109
110#endif /* __ASM_AVR32_ELF_H */
diff --git a/include/asm-avr32/emergency-restart.h b/include/asm-avr32/emergency-restart.h
new file mode 100644
index 000000000000..3e7e014776ba
--- /dev/null
+++ b/include/asm-avr32/emergency-restart.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_EMERGENCY_RESTART_H
2#define __ASM_AVR32_EMERGENCY_RESTART_H
3
4#include <asm-generic/emergency-restart.h>
5
6#endif /* __ASM_AVR32_EMERGENCY_RESTART_H */
diff --git a/include/asm-avr32/errno.h b/include/asm-avr32/errno.h
new file mode 100644
index 000000000000..558a7249f06d
--- /dev/null
+++ b/include/asm-avr32/errno.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_ERRNO_H
2#define __ASM_AVR32_ERRNO_H
3
4#include <asm-generic/errno.h>
5
6#endif /* __ASM_AVR32_ERRNO_H */
diff --git a/include/asm-avr32/fcntl.h b/include/asm-avr32/fcntl.h
new file mode 100644
index 000000000000..14c0c4402b11
--- /dev/null
+++ b/include/asm-avr32/fcntl.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_FCNTL_H
2#define __ASM_AVR32_FCNTL_H
3
4#include <asm-generic/fcntl.h>
5
6#endif /* __ASM_AVR32_FCNTL_H */
diff --git a/include/asm-avr32/futex.h b/include/asm-avr32/futex.h
new file mode 100644
index 000000000000..10419f14a68a
--- /dev/null
+++ b/include/asm-avr32/futex.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_FUTEX_H
2#define __ASM_AVR32_FUTEX_H
3
4#include <asm-generic/futex.h>
5
6#endif /* __ASM_AVR32_FUTEX_H */
diff --git a/include/asm-avr32/hardirq.h b/include/asm-avr32/hardirq.h
new file mode 100644
index 000000000000..267354356f60
--- /dev/null
+++ b/include/asm-avr32/hardirq.h
@@ -0,0 +1,34 @@
1#ifndef __ASM_AVR32_HARDIRQ_H
2#define __ASM_AVR32_HARDIRQ_H
3
4#include <linux/threads.h>
5#include <asm/irq.h>
6
7#ifndef __ASSEMBLY__
8
9#include <linux/cache.h>
10
11/* entry.S is sensitive to the offsets of these fields */
12typedef struct {
13 unsigned int __softirq_pending;
14} ____cacheline_aligned irq_cpustat_t;
15
16void ack_bad_irq(unsigned int irq);
17
18/* Standard mappings for irq_cpustat_t above */
19#include <linux/irq_cpustat.h>
20
21#endif /* __ASSEMBLY__ */
22
23#define HARDIRQ_BITS 12
24
25/*
26 * The hardirq mask has to be large enough to have
27 * space for potentially all IRQ sources in the system
28 * nesting on a single CPU:
29 */
30#if (1 << HARDIRQ_BITS) < NR_IRQS
31# error HARDIRQ_BITS is too low!
32#endif
33
34#endif /* __ASM_AVR32_HARDIRQ_H */
diff --git a/include/asm-avr32/hw_irq.h b/include/asm-avr32/hw_irq.h
new file mode 100644
index 000000000000..218b0a6bfd1b
--- /dev/null
+++ b/include/asm-avr32/hw_irq.h
@@ -0,0 +1,9 @@
1#ifndef __ASM_AVR32_HW_IRQ_H
2#define __ASM_AVR32_HW_IRQ_H
3
4static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i)
5{
6 /* Nothing to do */
7}
8
9#endif /* __ASM_AVR32_HW_IRQ_H */
diff --git a/include/asm-avr32/intc.h b/include/asm-avr32/intc.h
new file mode 100644
index 000000000000..1ac9ca75e8fd
--- /dev/null
+++ b/include/asm-avr32/intc.h
@@ -0,0 +1,128 @@
1#ifndef __ASM_AVR32_INTC_H
2#define __ASM_AVR32_INTC_H
3
4#include <linux/sysdev.h>
5#include <linux/interrupt.h>
6
7struct irq_controller;
8struct irqaction;
9struct pt_regs;
10
11struct platform_device;
12
13/* Information about the internal interrupt controller */
14struct intc_device {
15 /* ioremapped address of configuration block */
16 void __iomem *regs;
17
18 /* the physical device */
19 struct platform_device *pdev;
20
21 /* Number of interrupt lines per group. */
22 unsigned int irqs_per_group;
23
24 /* The highest group ID + 1 */
25 unsigned int nr_groups;
26
27 /*
28 * Bitfield indicating which groups are actually in use. The
29 * size of the array is
30 * ceil(group_max / (8 * sizeof(unsigned int))).
31 */
32 unsigned int group_mask[];
33};
34
35struct irq_controller_class {
36 /*
37 * A short name identifying this kind of controller.
38 */
39 const char *typename;
40 /*
41 * Handle the IRQ. Must do any necessary acking and masking.
42 */
43 irqreturn_t (*handle)(int irq, void *dev_id, struct pt_regs *regs);
44 /*
45 * Register a new IRQ handler.
46 */
47 int (*setup)(struct irq_controller *ctrl, unsigned int irq,
48 struct irqaction *action);
49 /*
50 * Unregister a IRQ handler.
51 */
52 void (*free)(struct irq_controller *ctrl, unsigned int irq,
53 void *dev_id);
54 /*
55 * Mask the IRQ in the interrupt controller.
56 */
57 void (*mask)(struct irq_controller *ctrl, unsigned int irq);
58 /*
59 * Unmask the IRQ in the interrupt controller.
60 */
61 void (*unmask)(struct irq_controller *ctrl, unsigned int irq);
62 /*
63 * Set the type of the IRQ. See below for possible types.
64 * Return -EINVAL if a given type is not supported
65 */
66 int (*set_type)(struct irq_controller *ctrl, unsigned int irq,
67 unsigned int type);
68 /*
69 * Return the IRQ type currently set
70 */
71 unsigned int (*get_type)(struct irq_controller *ctrl, unsigned int irq);
72};
73
74struct irq_controller {
75 struct irq_controller_class *class;
76 unsigned int irq_group;
77 unsigned int first_irq;
78 unsigned int nr_irqs;
79 struct list_head list;
80};
81
82struct intc_group_desc {
83 struct irq_controller *ctrl;
84 irqreturn_t (*handle)(int, void *, struct pt_regs *);
85 unsigned long flags;
86 void *dev_id;
87 const char *devname;
88};
89
90/*
91 * The internal interrupt controller. Defined in board/part-specific
92 * devices.c.
93 * TODO: Should probably be defined per-cpu.
94 */
95extern struct intc_device intc;
96
97extern int request_internal_irq(unsigned int irq,
98 irqreturn_t (*handler)(int, void *, struct pt_regs *),
99 unsigned long irqflags,
100 const char *devname, void *dev_id);
101extern void free_internal_irq(unsigned int irq);
102
103/* Only used by time_init() */
104extern int setup_internal_irq(unsigned int irq, struct intc_group_desc *desc);
105
106/*
107 * Set interrupt priority for a given group. `group' can be found by
108 * using irq_to_group(irq). Priority can be from 0 (lowest) to 3
109 * (highest). Higher-priority interrupts will preempt lower-priority
110 * interrupts (unless interrupts are masked globally).
111 *
112 * This function does not check for conflicts within a group.
113 */
114extern int intc_set_priority(unsigned int group,
115 unsigned int priority);
116
117/*
118 * Returns a bitmask of pending interrupts in a group.
119 */
120extern unsigned long intc_get_pending(unsigned int group);
121
122/*
123 * Register a new external interrupt controller. Returns the first
124 * external IRQ number that is assigned to the new controller.
125 */
126extern int intc_register_controller(struct irq_controller *ctrl);
127
128#endif /* __ASM_AVR32_INTC_H */
diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h
new file mode 100644
index 000000000000..2fc8f111dce9
--- /dev/null
+++ b/include/asm-avr32/io.h
@@ -0,0 +1,253 @@
1#ifndef __ASM_AVR32_IO_H
2#define __ASM_AVR32_IO_H
3
4#include <linux/string.h>
5
6#ifdef __KERNEL__
7
8#include <asm/addrspace.h>
9#include <asm/byteorder.h>
10
11/* virt_to_phys will only work when address is in P1 or P2 */
12static __inline__ unsigned long virt_to_phys(volatile void *address)
13{
14 return PHYSADDR(address);
15}
16
17static __inline__ void * phys_to_virt(unsigned long address)
18{
19 return (void *)P1SEGADDR(address);
20}
21
22#define cached_to_phys(addr) ((unsigned long)PHYSADDR(addr))
23#define uncached_to_phys(addr) ((unsigned long)PHYSADDR(addr))
24#define phys_to_cached(addr) ((void *)P1SEGADDR(addr))
25#define phys_to_uncached(addr) ((void *)P2SEGADDR(addr))
26
27/*
28 * Generic IO read/write. These perform native-endian accesses. Note
29 * that some architectures will want to re-define __raw_{read,write}w.
30 */
31extern void __raw_writesb(unsigned int addr, const void *data, int bytelen);
32extern void __raw_writesw(unsigned int addr, const void *data, int wordlen);
33extern void __raw_writesl(unsigned int addr, const void *data, int longlen);
34
35extern void __raw_readsb(unsigned int addr, void *data, int bytelen);
36extern void __raw_readsw(unsigned int addr, void *data, int wordlen);
37extern void __raw_readsl(unsigned int addr, void *data, int longlen);
38
39static inline void writeb(unsigned char b, volatile void __iomem *addr)
40{
41 *(volatile unsigned char __force *)addr = b;
42}
43static inline void writew(unsigned short b, volatile void __iomem *addr)
44{
45 *(volatile unsigned short __force *)addr = b;
46}
47static inline void writel(unsigned int b, volatile void __iomem *addr)
48{
49 *(volatile unsigned int __force *)addr = b;
50}
51#define __raw_writeb writeb
52#define __raw_writew writew
53#define __raw_writel writel
54
55static inline unsigned char readb(const volatile void __iomem *addr)
56{
57 return *(const volatile unsigned char __force *)addr;
58}
59static inline unsigned short readw(const volatile void __iomem *addr)
60{
61 return *(const volatile unsigned short __force *)addr;
62}
63static inline unsigned int readl(const volatile void __iomem *addr)
64{
65 return *(const volatile unsigned int __force *)addr;
66}
67#define __raw_readb readb
68#define __raw_readw readw
69#define __raw_readl readl
70
71#define writesb(p, d, l) __raw_writesb((unsigned int)p, d, l)
72#define writesw(p, d, l) __raw_writesw((unsigned int)p, d, l)
73#define writesl(p, d, l) __raw_writesl((unsigned int)p, d, l)
74
75#define readsb(p, d, l) __raw_readsb((unsigned int)p, d, l)
76#define readsw(p, d, l) __raw_readsw((unsigned int)p, d, l)
77#define readsl(p, d, l) __raw_readsl((unsigned int)p, d, l)
78
79/*
80 * These two are only here because ALSA _thinks_ it needs them...
81 */
82static inline void memcpy_fromio(void * to, const volatile void __iomem *from,
83 unsigned long count)
84{
85 char *p = to;
86 while (count) {
87 count--;
88 *p = readb(from);
89 p++;
90 from++;
91 }
92}
93
94static inline void memcpy_toio(volatile void __iomem *to, const void * from,
95 unsigned long count)
96{
97 const char *p = from;
98 while (count) {
99 count--;
100 writeb(*p, to);
101 p++;
102 to++;
103 }
104}
105
106static inline void memset_io(volatile void __iomem *addr, unsigned char val,
107 unsigned long count)
108{
109 memset((void __force *)addr, val, count);
110}
111
112/*
113 * Bad read/write accesses...
114 */
115extern void __readwrite_bug(const char *fn);
116
117#define IO_SPACE_LIMIT 0xffffffff
118
119/* Convert I/O port address to virtual address */
120#define __io(p) ((void __iomem *)phys_to_uncached(p))
121
122/*
123 * IO port access primitives
124 * -------------------------
125 *
126 * The AVR32 doesn't have special IO access instructions; all IO is memory
127 * mapped. Note that these are defined to perform little endian accesses
128 * only. Their primary purpose is to access PCI and ISA peripherals.
129 *
130 * Note that for a big endian machine, this implies that the following
131 * big endian mode connectivity is in place.
132 *
133 * The machine specific io.h include defines __io to translate an "IO"
134 * address to a memory address.
135 *
136 * Note that we prevent GCC re-ordering or caching values in expressions
137 * by introducing sequence points into the in*() definitions. Note that
138 * __raw_* do not guarantee this behaviour.
139 *
140 * The {in,out}[bwl] macros are for emulating x86-style PCI/ISA IO space.
141 */
142#define outb(v, p) __raw_writeb(v, __io(p))
143#define outw(v, p) __raw_writew(cpu_to_le16(v), __io(p))
144#define outl(v, p) __raw_writel(cpu_to_le32(v), __io(p))
145
146#define inb(p) __raw_readb(__io(p))
147#define inw(p) le16_to_cpu(__raw_readw(__io(p)))
148#define inl(p) le32_to_cpu(__raw_readl(__io(p)))
149
150static inline void __outsb(unsigned long port, void *addr, unsigned int count)
151{
152 while (count--) {
153 outb(*(u8 *)addr, port);
154 addr++;
155 }
156}
157
158static inline void __insb(unsigned long port, void *addr, unsigned int count)
159{
160 while (count--) {
161 *(u8 *)addr = inb(port);
162 addr++;
163 }
164}
165
166static inline void __outsw(unsigned long port, void *addr, unsigned int count)
167{
168 while (count--) {
169 outw(*(u16 *)addr, port);
170 addr += 2;
171 }
172}
173
174static inline void __insw(unsigned long port, void *addr, unsigned int count)
175{
176 while (count--) {
177 *(u16 *)addr = inw(port);
178 addr += 2;
179 }
180}
181
182static inline void __outsl(unsigned long port, void *addr, unsigned int count)
183{
184 while (count--) {
185 outl(*(u32 *)addr, port);
186 addr += 4;
187 }
188}
189
190static inline void __insl(unsigned long port, void *addr, unsigned int count)
191{
192 while (count--) {
193 *(u32 *)addr = inl(port);
194 addr += 4;
195 }
196}
197
198#define outsb(port, addr, count) __outsb(port, addr, count)
199#define insb(port, addr, count) __insb(port, addr, count)
200#define outsw(port, addr, count) __outsw(port, addr, count)
201#define insw(port, addr, count) __insw(port, addr, count)
202#define outsl(port, addr, count) __outsl(port, addr, count)
203#define insl(port, addr, count) __insl(port, addr, count)
204
205extern void __iomem *__ioremap(unsigned long offset, size_t size,
206 unsigned long flags);
207extern void __iounmap(void __iomem *addr);
208
209/*
210 * ioremap - map bus memory into CPU space
211 * @offset bus address of the memory
212 * @size size of the resource to map
213 *
214 * ioremap performs a platform specific sequence of operations to make
215 * bus memory CPU accessible via the readb/.../writel functions and
216 * the other mmio helpers. The returned address is not guaranteed to
217 * be usable directly as a virtual address.
218 */
219#define ioremap(offset, size) \
220 __ioremap((offset), (size), 0)
221
222#define iounmap(addr) \
223 __iounmap(addr)
224
225#define cached(addr) P1SEGADDR(addr)
226#define uncached(addr) P2SEGADDR(addr)
227
228#define virt_to_bus virt_to_phys
229#define bus_to_virt phys_to_virt
230#define page_to_bus page_to_phys
231#define bus_to_page phys_to_page
232
233#define dma_cache_wback_inv(_start, _size) \
234 flush_dcache_region(_start, _size)
235#define dma_cache_inv(_start, _size) \
236 invalidate_dcache_region(_start, _size)
237#define dma_cache_wback(_start, _size) \
238 clean_dcache_region(_start, _size)
239
240/*
241 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
242 * access
243 */
244#define xlate_dev_mem_ptr(p) __va(p)
245
246/*
247 * Convert a virtual cached pointer to an uncached pointer
248 */
249#define xlate_dev_kmem_ptr(p) p
250
251#endif /* __KERNEL__ */
252
253#endif /* __ASM_AVR32_IO_H */
diff --git a/include/asm-avr32/ioctl.h b/include/asm-avr32/ioctl.h
new file mode 100644
index 000000000000..c8472c1398ef
--- /dev/null
+++ b/include/asm-avr32/ioctl.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_IOCTL_H
2#define __ASM_AVR32_IOCTL_H
3
4#include <asm-generic/ioctl.h>
5
6#endif /* __ASM_AVR32_IOCTL_H */
diff --git a/include/asm-avr32/ioctls.h b/include/asm-avr32/ioctls.h
new file mode 100644
index 000000000000..0500426b7186
--- /dev/null
+++ b/include/asm-avr32/ioctls.h
@@ -0,0 +1,83 @@
1#ifndef __ASM_AVR32_IOCTLS_H
2#define __ASM_AVR32_IOCTLS_H
3
4#include <asm/ioctl.h>
5
6/* 0x54 is just a magic number to make these relatively unique ('T') */
7
8#define TCGETS 0x5401
9#define TCSETS 0x5402 /* Clashes with SNDCTL_TMR_START sound ioctl */
10#define TCSETSW 0x5403
11#define TCSETSF 0x5404
12#define TCGETA 0x5405
13#define TCSETA 0x5406
14#define TCSETAW 0x5407
15#define TCSETAF 0x5408
16#define TCSBRK 0x5409
17#define TCXONC 0x540A
18#define TCFLSH 0x540B
19#define TIOCEXCL 0x540C
20#define TIOCNXCL 0x540D
21#define TIOCSCTTY 0x540E
22#define TIOCGPGRP 0x540F
23#define TIOCSPGRP 0x5410
24#define TIOCOUTQ 0x5411
25#define TIOCSTI 0x5412
26#define TIOCGWINSZ 0x5413
27#define TIOCSWINSZ 0x5414
28#define TIOCMGET 0x5415
29#define TIOCMBIS 0x5416
30#define TIOCMBIC 0x5417
31#define TIOCMSET 0x5418
32#define TIOCGSOFTCAR 0x5419
33#define TIOCSSOFTCAR 0x541A
34#define FIONREAD 0x541B
35#define TIOCINQ FIONREAD
36#define TIOCLINUX 0x541C
37#define TIOCCONS 0x541D
38#define TIOCGSERIAL 0x541E
39#define TIOCSSERIAL 0x541F
40#define TIOCPKT 0x5420
41#define FIONBIO 0x5421
42#define TIOCNOTTY 0x5422
43#define TIOCSETD 0x5423
44#define TIOCGETD 0x5424
45#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */
46/* #define TIOCTTYGSTRUCT 0x5426 - Former debugging-only ioctl */
47#define TIOCSBRK 0x5427 /* BSD compatibility */
48#define TIOCCBRK 0x5428 /* BSD compatibility */
49#define TIOCGSID 0x5429 /* Return the session ID of FD */
50#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
51#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
52
53#define FIONCLEX 0x5450
54#define FIOCLEX 0x5451
55#define FIOASYNC 0x5452
56#define TIOCSERCONFIG 0x5453
57#define TIOCSERGWILD 0x5454
58#define TIOCSERSWILD 0x5455
59#define TIOCGLCKTRMIOS 0x5456
60#define TIOCSLCKTRMIOS 0x5457
61#define TIOCSERGSTRUCT 0x5458 /* For debugging only */
62#define TIOCSERGETLSR 0x5459 /* Get line status register */
63#define TIOCSERGETMULTI 0x545A /* Get multiport config */
64#define TIOCSERSETMULTI 0x545B /* Set multiport config */
65
66#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
67#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
68#define TIOCGHAYESESP 0x545E /* Get Hayes ESP configuration */
69#define TIOCSHAYESESP 0x545F /* Set Hayes ESP configuration */
70#define FIOQSIZE 0x5460
71
72/* Used for packet mode */
73#define TIOCPKT_DATA 0
74#define TIOCPKT_FLUSHREAD 1
75#define TIOCPKT_FLUSHWRITE 2
76#define TIOCPKT_STOP 4
77#define TIOCPKT_START 8
78#define TIOCPKT_NOSTOP 16
79#define TIOCPKT_DOSTOP 32
80
81#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
82
83#endif /* __ASM_AVR32_IOCTLS_H */
diff --git a/include/asm-avr32/ipcbuf.h b/include/asm-avr32/ipcbuf.h
new file mode 100644
index 000000000000..1552c9698f5e
--- /dev/null
+++ b/include/asm-avr32/ipcbuf.h
@@ -0,0 +1,29 @@
1#ifndef __ASM_AVR32_IPCBUF_H
2#define __ASM_AVR32_IPCBUF_H
3
4/*
5* The user_ipc_perm structure for AVR32 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* - 32-bit mode_t and seq
11* - 2 miscellaneous 32-bit values
12*/
13
14struct ipc64_perm
15{
16 __kernel_key_t key;
17 __kernel_uid32_t uid;
18 __kernel_gid32_t gid;
19 __kernel_uid32_t cuid;
20 __kernel_gid32_t cgid;
21 __kernel_mode_t mode;
22 unsigned short __pad1;
23 unsigned short seq;
24 unsigned short __pad2;
25 unsigned long __unused1;
26 unsigned long __unused2;
27};
28
29#endif /* __ASM_AVR32_IPCBUF_H */
diff --git a/include/asm-avr32/irq.h b/include/asm-avr32/irq.h
new file mode 100644
index 000000000000..f7e725707dd7
--- /dev/null
+++ b/include/asm-avr32/irq.h
@@ -0,0 +1,10 @@
1#ifndef __ASM_AVR32_IRQ_H
2#define __ASM_AVR32_IRQ_H
3
4#define NR_INTERNAL_IRQS 64
5#define NR_EXTERNAL_IRQS 64
6#define NR_IRQS (NR_INTERNAL_IRQS + NR_EXTERNAL_IRQS)
7
8#define irq_canonicalize(i) (i)
9
10#endif /* __ASM_AVR32_IOCTLS_H */
diff --git a/include/asm-avr32/irqflags.h b/include/asm-avr32/irqflags.h
new file mode 100644
index 000000000000..93570daac38a
--- /dev/null
+++ b/include/asm-avr32/irqflags.h
@@ -0,0 +1,68 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_IRQFLAGS_H
9#define __ASM_AVR32_IRQFLAGS_H
10
11#include <asm/sysreg.h>
12
13static inline unsigned long __raw_local_save_flags(void)
14{
15 return sysreg_read(SR);
16}
17
18#define raw_local_save_flags(x) \
19 do { (x) = __raw_local_save_flags(); } while (0)
20
21/*
22 * This will restore ALL status register flags, not only the interrupt
23 * mask flag.
24 *
25 * The empty asm statement informs the compiler of this fact while
26 * also serving as a barrier.
27 */
28static inline void raw_local_irq_restore(unsigned long flags)
29{
30 sysreg_write(SR, flags);
31 asm volatile("" : : : "memory", "cc");
32}
33
34static inline void raw_local_irq_disable(void)
35{
36 asm volatile("ssrf %0" : : "n"(SYSREG_GM_OFFSET) : "memory");
37}
38
39static inline void raw_local_irq_enable(void)
40{
41 asm volatile("csrf %0" : : "n"(SYSREG_GM_OFFSET) : "memory");
42}
43
44static inline int raw_irqs_disabled_flags(unsigned long flags)
45{
46 return (flags & SYSREG_BIT(GM)) != 0;
47}
48
49static inline int raw_irqs_disabled(void)
50{
51 unsigned long flags = __raw_local_save_flags();
52
53 return raw_irqs_disabled_flags(flags);
54}
55
56static inline unsigned long __raw_local_irq_save(void)
57{
58 unsigned long flags = __raw_local_save_flags();
59
60 raw_local_irq_disable();
61
62 return flags;
63}
64
65#define raw_local_irq_save(flags) \
66 do { (flags) = __raw_local_irq_save(); } while (0)
67
68#endif /* __ASM_AVR32_IRQFLAGS_H */
diff --git a/include/asm-avr32/kdebug.h b/include/asm-avr32/kdebug.h
new file mode 100644
index 000000000000..f583b643ffb2
--- /dev/null
+++ b/include/asm-avr32/kdebug.h
@@ -0,0 +1,38 @@
1#ifndef __ASM_AVR32_KDEBUG_H
2#define __ASM_AVR32_KDEBUG_H
3
4#include <linux/notifier.h>
5
6struct pt_regs;
7
8struct die_args {
9 struct pt_regs *regs;
10 int trapnr;
11};
12
13int register_die_notifier(struct notifier_block *nb);
14int unregister_die_notifier(struct notifier_block *nb);
15int register_page_fault_notifier(struct notifier_block *nb);
16int unregister_page_fault_notifier(struct notifier_block *nb);
17extern struct atomic_notifier_head avr32_die_chain;
18
19/* Grossly misnamed. */
20enum die_val {
21 DIE_FAULT,
22 DIE_BREAKPOINT,
23 DIE_SSTEP,
24 DIE_PAGE_FAULT,
25};
26
27static inline int notify_die(enum die_val val, struct pt_regs *regs,
28 int trap, int sig)
29{
30 struct die_args args = {
31 .regs = regs,
32 .trapnr = trap,
33 };
34
35 return atomic_notifier_call_chain(&avr32_die_chain, val, &args);
36}
37
38#endif /* __ASM_AVR32_KDEBUG_H */
diff --git a/include/asm-avr32/kmap_types.h b/include/asm-avr32/kmap_types.h
new file mode 100644
index 000000000000..b7f5c6870107
--- /dev/null
+++ b/include/asm-avr32/kmap_types.h
@@ -0,0 +1,30 @@
1#ifndef __ASM_AVR32_KMAP_TYPES_H
2#define __ASM_AVR32_KMAP_TYPES_H
3
4#ifdef CONFIG_DEBUG_HIGHMEM
5# define D(n) __KM_FENCE_##n ,
6#else
7# define D(n)
8#endif
9
10enum km_type {
11D(0) KM_BOUNCE_READ,
12D(1) KM_SKB_SUNRPC_DATA,
13D(2) KM_SKB_DATA_SOFTIRQ,
14D(3) KM_USER0,
15D(4) KM_USER1,
16D(5) KM_BIO_SRC_IRQ,
17D(6) KM_BIO_DST_IRQ,
18D(7) KM_PTE0,
19D(8) KM_PTE1,
20D(9) KM_PTE2,
21D(10) KM_IRQ0,
22D(11) KM_IRQ1,
23D(12) KM_SOFTIRQ0,
24D(13) KM_SOFTIRQ1,
25D(14) KM_TYPE_NR
26};
27
28#undef D
29
30#endif /* __ASM_AVR32_KMAP_TYPES_H */
diff --git a/include/asm-avr32/kprobes.h b/include/asm-avr32/kprobes.h
new file mode 100644
index 000000000000..09a5cbe2f896
--- /dev/null
+++ b/include/asm-avr32/kprobes.h
@@ -0,0 +1,34 @@
1/*
2 * Kernel Probes (KProbes)
3 *
4 * Copyright (C) 2005-2006 Atmel Corporation
5 * Copyright (C) IBM Corporation, 2002, 2004
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef __ASM_AVR32_KPROBES_H
12#define __ASM_AVR32_KPROBES_H
13
14#include <linux/types.h>
15
16typedef u16 kprobe_opcode_t;
17#define BREAKPOINT_INSTRUCTION 0xd673 /* breakpoint */
18#define MAX_INSN_SIZE 2
19
20#define ARCH_INACTIVE_KPROBE_COUNT 1
21
22#define arch_remove_kprobe(p) do { } while (0)
23
24/* Architecture specific copy of original instruction */
25struct arch_specific_insn {
26 kprobe_opcode_t insn[MAX_INSN_SIZE];
27};
28
29extern int kprobe_exceptions_notify(struct notifier_block *self,
30 unsigned long val, void *data);
31
32#define flush_insn_slot(p) do { } while (0)
33
34#endif /* __ASM_AVR32_KPROBES_H */
diff --git a/include/asm-avr32/linkage.h b/include/asm-avr32/linkage.h
new file mode 100644
index 000000000000..f7b285e910d4
--- /dev/null
+++ b/include/asm-avr32/linkage.h
@@ -0,0 +1,7 @@
1#ifndef __ASM_LINKAGE_H
2#define __ASM_LINKAGE_H
3
4#define __ALIGN .balign 2
5#define __ALIGN_STR ".balign 2"
6
7#endif /* __ASM_LINKAGE_H */
diff --git a/include/asm-avr32/local.h b/include/asm-avr32/local.h
new file mode 100644
index 000000000000..1c1619694da3
--- /dev/null
+++ b/include/asm-avr32/local.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_LOCAL_H
2#define __ASM_AVR32_LOCAL_H
3
4#include <asm-generic/local.h>
5
6#endif /* __ASM_AVR32_LOCAL_H */
diff --git a/include/asm-avr32/mach/serial_at91.h b/include/asm-avr32/mach/serial_at91.h
new file mode 100644
index 000000000000..1290bb32802d
--- /dev/null
+++ b/include/asm-avr32/mach/serial_at91.h
@@ -0,0 +1,33 @@
1/*
2 * linux/include/asm-arm/mach/serial_at91.h
3 *
4 * Based on serial_sa1100.h by Nicolas Pitre
5 *
6 * Copyright (C) 2002 ATMEL Rousset
7 *
8 * Low level machine dependent UART functions.
9 */
10
11struct uart_port;
12
13/*
14 * This is a temporary structure for registering these
15 * functions; it is intended to be discarded after boot.
16 */
17struct at91_port_fns {
18 void (*set_mctrl)(struct uart_port *, u_int);
19 u_int (*get_mctrl)(struct uart_port *);
20 void (*enable_ms)(struct uart_port *);
21 void (*pm)(struct uart_port *, u_int, u_int);
22 int (*set_wake)(struct uart_port *, u_int);
23 int (*open)(struct uart_port *);
24 void (*close)(struct uart_port *);
25};
26
27#if defined(CONFIG_SERIAL_AT91)
28void at91_register_uart_fns(struct at91_port_fns *fns);
29#else
30#define at91_register_uart_fns(fns) do { } while (0)
31#endif
32
33
diff --git a/include/asm-avr32/mman.h b/include/asm-avr32/mman.h
new file mode 100644
index 000000000000..648f91e7187a
--- /dev/null
+++ b/include/asm-avr32/mman.h
@@ -0,0 +1,17 @@
1#ifndef __ASM_AVR32_MMAN_H__
2#define __ASM_AVR32_MMAN_H__
3
4#include <asm-generic/mman.h>
5
6#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
7#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
8#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
9#define MAP_LOCKED 0x2000 /* pages are locked */
10#define MAP_NORESERVE 0x4000 /* don't check for reservations */
11#define MAP_POPULATE 0x8000 /* populate (prefault) page tables */
12#define MAP_NONBLOCK 0x10000 /* do not block on IO */
13
14#define MCL_CURRENT 1 /* lock all current mappings */
15#define MCL_FUTURE 2 /* lock all future mappings */
16
17#endif /* __ASM_AVR32_MMAN_H__ */
diff --git a/include/asm-avr32/mmu.h b/include/asm-avr32/mmu.h
new file mode 100644
index 000000000000..60c2d2650d32
--- /dev/null
+++ b/include/asm-avr32/mmu.h
@@ -0,0 +1,10 @@
1#ifndef __ASM_AVR32_MMU_H
2#define __ASM_AVR32_MMU_H
3
4/* Default "unsigned long" context */
5typedef unsigned long mm_context_t;
6
7#define MMU_ITLB_ENTRIES 64
8#define MMU_DTLB_ENTRIES 64
9
10#endif /* __ASM_AVR32_MMU_H */
diff --git a/include/asm-avr32/mmu_context.h b/include/asm-avr32/mmu_context.h
new file mode 100644
index 000000000000..31add1ae8089
--- /dev/null
+++ b/include/asm-avr32/mmu_context.h
@@ -0,0 +1,148 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * ASID handling taken from SH implementation.
5 * Copyright (C) 1999 Niibe Yutaka
6 * Copyright (C) 2003 Paul Mundt
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 version 2 as
10 * published by the Free Software Foundation.
11 */
12#ifndef __ASM_AVR32_MMU_CONTEXT_H
13#define __ASM_AVR32_MMU_CONTEXT_H
14
15#include <asm/tlbflush.h>
16#include <asm/pgalloc.h>
17#include <asm/sysreg.h>
18
19/*
20 * The MMU "context" consists of two things:
21 * (a) TLB cache version
22 * (b) ASID (Address Space IDentifier)
23 */
24#define MMU_CONTEXT_ASID_MASK 0x000000ff
25#define MMU_CONTEXT_VERSION_MASK 0xffffff00
26#define MMU_CONTEXT_FIRST_VERSION 0x00000100
27#define NO_CONTEXT 0
28
29#define MMU_NO_ASID 0x100
30
31/* Virtual Page Number mask */
32#define MMU_VPN_MASK 0xfffff000
33
34/* Cache of MMU context last used */
35extern unsigned long mmu_context_cache;
36
37/*
38 * Get MMU context if needed
39 */
40static inline void
41get_mmu_context(struct mm_struct *mm)
42{
43 unsigned long mc = mmu_context_cache;
44
45 if (((mm->context ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0)
46 /* It's up to date, do nothing */
47 return;
48
49 /* It's old, we need to get new context with new version */
50 mc = ++mmu_context_cache;
51 if (!(mc & MMU_CONTEXT_ASID_MASK)) {
52 /*
53 * We have exhausted all ASIDs of this version.
54 * Flush the TLB and start new cycle.
55 */
56 flush_tlb_all();
57 /*
58 * Fix version. Note that we avoid version #0
59 * to distinguish NO_CONTEXT.
60 */
61 if (!mc)
62 mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION;
63 }
64 mm->context = mc;
65}
66
67/*
68 * Initialize the context related info for a new mm_struct
69 * instance.
70 */
71static inline int init_new_context(struct task_struct *tsk,
72 struct mm_struct *mm)
73{
74 mm->context = NO_CONTEXT;
75 return 0;
76}
77
78/*
79 * Destroy context related info for an mm_struct that is about
80 * to be put to rest.
81 */
82static inline void destroy_context(struct mm_struct *mm)
83{
84 /* Do nothing */
85}
86
87static inline void set_asid(unsigned long asid)
88{
89 /* XXX: We're destroying TLBEHI[8:31] */
90 sysreg_write(TLBEHI, asid & MMU_CONTEXT_ASID_MASK);
91 cpu_sync_pipeline();
92}
93
94static inline unsigned long get_asid(void)
95{
96 unsigned long asid;
97
98 asid = sysreg_read(TLBEHI);
99 return asid & MMU_CONTEXT_ASID_MASK;
100}
101
102static inline void activate_context(struct mm_struct *mm)
103{
104 get_mmu_context(mm);
105 set_asid(mm->context & MMU_CONTEXT_ASID_MASK);
106}
107
108static inline void switch_mm(struct mm_struct *prev,
109 struct mm_struct *next,
110 struct task_struct *tsk)
111{
112 if (likely(prev != next)) {
113 unsigned long __pgdir = (unsigned long)next->pgd;
114
115 sysreg_write(PTBR, __pgdir);
116 activate_context(next);
117 }
118}
119
120#define deactivate_mm(tsk,mm) do { } while(0)
121
122#define activate_mm(prev, next) switch_mm((prev), (next), NULL)
123
124static inline void
125enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
126{
127}
128
129
130static inline void enable_mmu(void)
131{
132 sysreg_write(MMUCR, (SYSREG_BIT(MMUCR_S)
133 | SYSREG_BIT(E)
134 | SYSREG_BIT(MMUCR_I)));
135 nop(); nop(); nop(); nop(); nop(); nop(); nop(); nop();
136
137 if (mmu_context_cache == NO_CONTEXT)
138 mmu_context_cache = MMU_CONTEXT_FIRST_VERSION;
139
140 set_asid(mmu_context_cache & MMU_CONTEXT_ASID_MASK);
141}
142
143static inline void disable_mmu(void)
144{
145 sysreg_write(MMUCR, SYSREG_BIT(MMUCR_S));
146}
147
148#endif /* __ASM_AVR32_MMU_CONTEXT_H */
diff --git a/include/asm-avr32/module.h b/include/asm-avr32/module.h
new file mode 100644
index 000000000000..451444538a1b
--- /dev/null
+++ b/include/asm-avr32/module.h
@@ -0,0 +1,28 @@
1#ifndef __ASM_AVR32_MODULE_H
2#define __ASM_AVR32_MODULE_H
3
4struct mod_arch_syminfo {
5 unsigned long got_offset;
6 int got_initialized;
7};
8
9struct mod_arch_specific {
10 /* Starting offset of got in the module core memory. */
11 unsigned long got_offset;
12 /* Size of the got. */
13 unsigned long got_size;
14 /* Number of symbols in syminfo. */
15 int nsyms;
16 /* Additional symbol information (got offsets). */
17 struct mod_arch_syminfo *syminfo;
18};
19
20#define Elf_Shdr Elf32_Shdr
21#define Elf_Sym Elf32_Sym
22#define Elf_Ehdr Elf32_Ehdr
23
24#define MODULE_PROC_FAMILY "AVR32v1"
25
26#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
27
28#endif /* __ASM_AVR32_MODULE_H */
diff --git a/include/asm-avr32/msgbuf.h b/include/asm-avr32/msgbuf.h
new file mode 100644
index 000000000000..ac18bc4da7f7
--- /dev/null
+++ b/include/asm-avr32/msgbuf.h
@@ -0,0 +1,31 @@
1#ifndef __ASM_AVR32_MSGBUF_H
2#define __ASM_AVR32_MSGBUF_H
3
4/*
5 * The msqid64_ds structure for i386 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_AVR32_MSGBUF_H */
diff --git a/include/asm-avr32/mutex.h b/include/asm-avr32/mutex.h
new file mode 100644
index 000000000000..458c1f7fbc18
--- /dev/null
+++ b/include/asm-avr32/mutex.h
@@ -0,0 +1,9 @@
1/*
2 * Pull in the generic implementation for the mutex fastpath.
3 *
4 * TODO: implement optimized primitives instead, or leave the generic
5 * implementation in place, or pick the atomic_xchg() based generic
6 * implementation. (see asm-generic/mutex-xchg.h for details)
7 */
8
9#include <asm-generic/mutex-dec.h>
diff --git a/include/asm-avr32/namei.h b/include/asm-avr32/namei.h
new file mode 100644
index 000000000000..f0a26de06cab
--- /dev/null
+++ b/include/asm-avr32/namei.h
@@ -0,0 +1,7 @@
1#ifndef __ASM_AVR32_NAMEI_H
2#define __ASM_AVR32_NAMEI_H
3
4/* This dummy routine may be changed to something useful */
5#define __emul_prefix() NULL
6
7#endif /* __ASM_AVR32_NAMEI_H */
diff --git a/include/asm-avr32/numnodes.h b/include/asm-avr32/numnodes.h
new file mode 100644
index 000000000000..0b864d7ce330
--- /dev/null
+++ b/include/asm-avr32/numnodes.h
@@ -0,0 +1,7 @@
1#ifndef __ASM_AVR32_NUMNODES_H
2#define __ASM_AVR32_NUMNODES_H
3
4/* Max 4 nodes */
5#define NODES_SHIFT 2
6
7#endif /* __ASM_AVR32_NUMNODES_H */
diff --git a/include/asm-avr32/ocd.h b/include/asm-avr32/ocd.h
new file mode 100644
index 000000000000..46f73180a127
--- /dev/null
+++ b/include/asm-avr32/ocd.h
@@ -0,0 +1,78 @@
1/*
2 * AVR32 OCD Registers
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#ifndef __ASM_AVR32_OCD_H
11#define __ASM_AVR32_OCD_H
12
13/* Debug Registers */
14#define DBGREG_DID 0
15#define DBGREG_DC 8
16#define DBGREG_DS 16
17#define DBGREG_RWCS 28
18#define DBGREG_RWA 36
19#define DBGREG_RWD 40
20#define DBGREG_WT 44
21#define DBGREG_DTC 52
22#define DBGREG_DTSA0 56
23#define DBGREG_DTSA1 60
24#define DBGREG_DTEA0 72
25#define DBGREG_DTEA1 76
26#define DBGREG_BWC0A 88
27#define DBGREG_BWC0B 92
28#define DBGREG_BWC1A 96
29#define DBGREG_BWC1B 100
30#define DBGREG_BWC2A 104
31#define DBGREG_BWC2B 108
32#define DBGREG_BWC3A 112
33#define DBGREG_BWC3B 116
34#define DBGREG_BWA0A 120
35#define DBGREG_BWA0B 124
36#define DBGREG_BWA1A 128
37#define DBGREG_BWA1B 132
38#define DBGREG_BWA2A 136
39#define DBGREG_BWA2B 140
40#define DBGREG_BWA3A 144
41#define DBGREG_BWA3B 148
42#define DBGREG_BWD3A 153
43#define DBGREG_BWD3B 156
44
45#define DBGREG_PID 284
46
47#define SABAH_OCD 0x01
48#define SABAH_ICACHE 0x02
49#define SABAH_MEM_CACHED 0x04
50#define SABAH_MEM_UNCACHED 0x05
51
52/* Fields in the Development Control register */
53#define DC_SS_BIT 8
54
55#define DC_SS (1 << DC_SS_BIT)
56#define DC_DBE (1 << 13)
57#define DC_RID (1 << 27)
58#define DC_ORP (1 << 28)
59#define DC_MM (1 << 29)
60#define DC_RES (1 << 30)
61
62/* Fields in the Development Status register */
63#define DS_SSS (1 << 0)
64#define DS_SWB (1 << 1)
65#define DS_HWB (1 << 2)
66#define DS_BP_SHIFT 8
67#define DS_BP_MASK (0xff << DS_BP_SHIFT)
68
69#define __mfdr(addr) \
70({ \
71 register unsigned long value; \
72 asm volatile("mfdr %0, %1" : "=r"(value) : "i"(addr)); \
73 value; \
74})
75#define __mtdr(addr, value) \
76 asm volatile("mtdr %0, %1" : : "i"(addr), "r"(value))
77
78#endif /* __ASM_AVR32_OCD_H */
diff --git a/include/asm-avr32/page.h b/include/asm-avr32/page.h
new file mode 100644
index 000000000000..0f630b3e9932
--- /dev/null
+++ b/include/asm-avr32/page.h
@@ -0,0 +1,112 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_PAGE_H
9#define __ASM_AVR32_PAGE_H
10
11#ifdef __KERNEL__
12
13/* PAGE_SHIFT determines the page size */
14#define PAGE_SHIFT 12
15#ifdef __ASSEMBLY__
16#define PAGE_SIZE (1 << PAGE_SHIFT)
17#else
18#define PAGE_SIZE (1UL << PAGE_SHIFT)
19#endif
20#define PAGE_MASK (~(PAGE_SIZE-1))
21#define PTE_MASK PAGE_MASK
22
23#ifndef __ASSEMBLY__
24
25#include <asm/addrspace.h>
26
27extern void clear_page(void *to);
28extern void copy_page(void *to, void *from);
29
30#define clear_user_page(page, vaddr, pg) clear_page(page)
31#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
32
33/*
34 * These are used to make use of C type-checking..
35 */
36typedef struct { unsigned long pte; } pte_t;
37typedef struct { unsigned long pgd; } pgd_t;
38typedef struct { unsigned long pgprot; } pgprot_t;
39
40#define pte_val(x) ((x).pte)
41#define pgd_val(x) ((x).pgd)
42#define pgprot_val(x) ((x).pgprot)
43
44#define __pte(x) ((pte_t) { (x) })
45#define __pgd(x) ((pgd_t) { (x) })
46#define __pgprot(x) ((pgprot_t) { (x) })
47
48/* FIXME: These should be removed soon */
49extern unsigned long memory_start, memory_end;
50
51/* Pure 2^n version of get_order */
52static inline int get_order(unsigned long size)
53{
54 unsigned lz;
55
56 size = (size - 1) >> PAGE_SHIFT;
57 asm("clz %0, %1" : "=r"(lz) : "r"(size));
58 return 32 - lz;
59}
60
61#endif /* !__ASSEMBLY__ */
62
63/* Align the pointer to the (next) page boundary */
64#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
65
66/*
67 * The hardware maps the virtual addresses 0x80000000 -> 0x9fffffff
68 * permanently to the physical addresses 0x00000000 -> 0x1fffffff when
69 * segmentation is enabled. We want to make use of this in order to
70 * minimize TLB pressure.
71 */
72#define PAGE_OFFSET (0x80000000UL)
73
74/*
75 * ALSA uses virt_to_page() on DMA pages, which I'm not entirely sure
76 * is a good idea. Anyway, we can't simply subtract PAGE_OFFSET here
77 * in that case, so we'll have to mask out the three most significant
78 * bits of the address instead...
79 *
80 * What's the difference between __pa() and virt_to_phys() anyway?
81 */
82#define __pa(x) PHYSADDR(x)
83#define __va(x) ((void *)(P1SEGADDR(x)))
84
85#define MAP_NR(addr) (((unsigned long)(addr) - PAGE_OFFSET) >> PAGE_SHIFT)
86
87#define phys_to_page(phys) (pfn_to_page(phys >> PAGE_SHIFT))
88#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
89
90#ifndef CONFIG_NEED_MULTIPLE_NODES
91
92#define PHYS_PFN_OFFSET (CONFIG_PHYS_OFFSET >> PAGE_SHIFT)
93
94#define pfn_to_page(pfn) (mem_map + ((pfn) - PHYS_PFN_OFFSET))
95#define page_to_pfn(page) ((unsigned long)((page) - mem_map) + PHYS_PFN_OFFSET)
96#define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr))
97#endif /* CONFIG_NEED_MULTIPLE_NODES */
98
99#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
100#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
101
102#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \
103 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
104
105/*
106 * Memory above this physical address will be considered highmem.
107 */
108#define HIGHMEM_START 0x20000000UL
109
110#endif /* __KERNEL__ */
111
112#endif /* __ASM_AVR32_PAGE_H */
diff --git a/include/asm-avr32/param.h b/include/asm-avr32/param.h
new file mode 100644
index 000000000000..34bc8d4c3b29
--- /dev/null
+++ b/include/asm-avr32/param.h
@@ -0,0 +1,23 @@
1#ifndef __ASM_AVR32_PARAM_H
2#define __ASM_AVR32_PARAM_H
3
4#ifdef __KERNEL__
5# define HZ CONFIG_HZ
6# define USER_HZ 100 /* User interfaces are in "ticks" */
7# define CLOCKS_PER_SEC (USER_HZ) /* frequency at which times() counts */
8#endif
9
10#ifndef HZ
11# define HZ 100
12#endif
13
14/* TODO: Should be configurable */
15#define EXEC_PAGESIZE 4096
16
17#ifndef NOGROUP
18# define NOGROUP (-1)
19#endif
20
21#define MAXHOSTNAMELEN 64
22
23#endif /* __ASM_AVR32_PARAM_H */
diff --git a/include/asm-avr32/pci.h b/include/asm-avr32/pci.h
new file mode 100644
index 000000000000..0f5f134b896a
--- /dev/null
+++ b/include/asm-avr32/pci.h
@@ -0,0 +1,8 @@
1#ifndef __ASM_AVR32_PCI_H__
2#define __ASM_AVR32_PCI_H__
3
4/* We don't support PCI yet, but some drivers require this file anyway */
5
6#define PCI_DMA_BUS_IS_PHYS (1)
7
8#endif /* __ASM_AVR32_PCI_H__ */
diff --git a/include/asm-avr32/percpu.h b/include/asm-avr32/percpu.h
new file mode 100644
index 000000000000..69227b4cd0d4
--- /dev/null
+++ b/include/asm-avr32/percpu.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_PERCPU_H
2#define __ASM_AVR32_PERCPU_H
3
4#include <asm-generic/percpu.h>
5
6#endif /* __ASM_AVR32_PERCPU_H */
diff --git a/include/asm-avr32/pgalloc.h b/include/asm-avr32/pgalloc.h
new file mode 100644
index 000000000000..7492cfb92ced
--- /dev/null
+++ b/include/asm-avr32/pgalloc.h
@@ -0,0 +1,96 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_PGALLOC_H
9#define __ASM_AVR32_PGALLOC_H
10
11#include <asm/processor.h>
12#include <linux/threads.h>
13#include <linux/slab.h>
14#include <linux/mm.h>
15
16#define pmd_populate_kernel(mm, pmd, pte) \
17 set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)))
18
19static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
20 struct page *pte)
21{
22 set_pmd(pmd, __pmd(_PAGE_TABLE + page_to_phys(pte)));
23}
24
25/*
26 * Allocate and free page tables
27 */
28static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm)
29{
30 unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t));
31 pgd_t *pgd = (pgd_t *)kmalloc(pgd_size, GFP_KERNEL);
32
33 if (pgd)
34 memset(pgd, 0, pgd_size);
35
36 return pgd;
37}
38
39static inline void pgd_free(pgd_t *pgd)
40{
41 kfree(pgd);
42}
43
44static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
45 unsigned long address)
46{
47 int count = 0;
48 pte_t *pte;
49
50 do {
51 pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT);
52 if (pte)
53 clear_page(pte);
54 else {
55 current->state = TASK_UNINTERRUPTIBLE;
56 schedule_timeout(HZ);
57 }
58 } while (!pte && (count++ < 10));
59
60 return pte;
61}
62
63static inline struct page *pte_alloc_one(struct mm_struct *mm,
64 unsigned long address)
65{
66 int count = 0;
67 struct page *pte;
68
69 do {
70 pte = alloc_pages(GFP_KERNEL, 0);
71 if (pte)
72 clear_page(page_address(pte));
73 else {
74 current->state = TASK_UNINTERRUPTIBLE;
75 schedule_timeout(HZ);
76 }
77 } while (!pte && (count++ < 10));
78
79 return pte;
80}
81
82static inline void pte_free_kernel(pte_t *pte)
83{
84 free_page((unsigned long)pte);
85}
86
87static inline void pte_free(struct page *pte)
88{
89 __free_page(pte);
90}
91
92#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
93
94#define check_pgt_cache() do { } while(0)
95
96#endif /* __ASM_AVR32_PGALLOC_H */
diff --git a/include/asm-avr32/pgtable-2level.h b/include/asm-avr32/pgtable-2level.h
new file mode 100644
index 000000000000..425dd567b5b9
--- /dev/null
+++ b/include/asm-avr32/pgtable-2level.h
@@ -0,0 +1,47 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_PGTABLE_2LEVEL_H
9#define __ASM_AVR32_PGTABLE_2LEVEL_H
10
11#include <asm-generic/pgtable-nopmd.h>
12
13/*
14 * Traditional 2-level paging structure
15 */
16#define PGDIR_SHIFT 22
17#define PTRS_PER_PGD 1024
18
19#define PTRS_PER_PTE 1024
20
21#ifndef __ASSEMBLY__
22#define pte_ERROR(e) \
23 printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
24#define pgd_ERROR(e) \
25 printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
26
27/*
28 * Certain architectures need to do special things when PTEs
29 * within a page table are directly modified. Thus, the following
30 * hook is made available.
31 */
32#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
33#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep, pteval)
34
35/*
36 * (pmds are folded into pgds so this doesn't get actually called,
37 * but the define is needed for a generic inline function.)
38 */
39#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
40
41#define pte_pfn(x) ((unsigned long)(((x).pte >> PAGE_SHIFT)))
42#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
43#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
44
45#endif /* !__ASSEMBLY__ */
46
47#endif /* __ASM_AVR32_PGTABLE_2LEVEL_H */
diff --git a/include/asm-avr32/pgtable.h b/include/asm-avr32/pgtable.h
new file mode 100644
index 000000000000..6b8ca9db2bd5
--- /dev/null
+++ b/include/asm-avr32/pgtable.h
@@ -0,0 +1,408 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_PGTABLE_H
9#define __ASM_AVR32_PGTABLE_H
10
11#include <asm/addrspace.h>
12
13#ifndef __ASSEMBLY__
14#include <linux/sched.h>
15
16#endif /* !__ASSEMBLY__ */
17
18/*
19 * Use two-level page tables just as the i386 (without PAE)
20 */
21#include <asm/pgtable-2level.h>
22
23/*
24 * The following code might need some cleanup when the values are
25 * final...
26 */
27#define PMD_SIZE (1UL << PMD_SHIFT)
28#define PMD_MASK (~(PMD_SIZE-1))
29#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
30#define PGDIR_MASK (~(PGDIR_SIZE-1))
31
32#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
33#define FIRST_USER_ADDRESS 0
34
35#define PTE_PHYS_MASK 0x1ffff000
36
37#ifndef __ASSEMBLY__
38extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
39extern void paging_init(void);
40
41/*
42 * ZERO_PAGE is a global shared page that is always zero: used for
43 * zero-mapped memory areas etc.
44 */
45extern struct page *empty_zero_page;
46#define ZERO_PAGE(vaddr) (empty_zero_page)
47
48/*
49 * Just any arbitrary offset to the start of the vmalloc VM area: the
50 * current 8 MiB value just means that there will be a 8 MiB "hole"
51 * after the uncached physical memory (P2 segment) until the vmalloc
52 * area starts. That means that any out-of-bounds memory accesses will
53 * hopefully be caught; we don't know if the end of the P1/P2 segments
54 * are actually used for anything, but it is anyway safer to let the
55 * MMU catch these kinds of errors than to rely on the memory bus.
56 *
57 * A "hole" of the same size is added to the end of the P3 segment as
58 * well. It might seem wasteful to use 16 MiB of virtual address space
59 * on this, but we do have 512 MiB of it...
60 *
61 * The vmalloc() routines leave a hole of 4 KiB between each vmalloced
62 * area for the same reason.
63 */
64#define VMALLOC_OFFSET (8 * 1024 * 1024)
65#define VMALLOC_START (P3SEG + VMALLOC_OFFSET)
66#define VMALLOC_END (P4SEG - VMALLOC_OFFSET)
67#endif /* !__ASSEMBLY__ */
68
69/*
70 * Page flags. Some of these flags are not directly supported by
71 * hardware, so we have to emulate them.
72 */
73#define _TLBEHI_BIT_VALID 9
74#define _TLBEHI_VALID (1 << _TLBEHI_BIT_VALID)
75
76#define _PAGE_BIT_WT 0 /* W-bit : write-through */
77#define _PAGE_BIT_DIRTY 1 /* D-bit : page changed */
78#define _PAGE_BIT_SZ0 2 /* SZ0-bit : Size of page */
79#define _PAGE_BIT_SZ1 3 /* SZ1-bit : Size of page */
80#define _PAGE_BIT_EXECUTE 4 /* X-bit : execute access allowed */
81#define _PAGE_BIT_RW 5 /* AP0-bit : write access allowed */
82#define _PAGE_BIT_USER 6 /* AP1-bit : user space access allowed */
83#define _PAGE_BIT_BUFFER 7 /* B-bit : bufferable */
84#define _PAGE_BIT_GLOBAL 8 /* G-bit : global (ignore ASID) */
85#define _PAGE_BIT_CACHABLE 9 /* C-bit : cachable */
86
87/* If we drop support for 1K pages, we get two extra bits */
88#define _PAGE_BIT_PRESENT 10
89#define _PAGE_BIT_ACCESSED 11 /* software: page was accessed */
90
91/* The following flags are only valid when !PRESENT */
92#define _PAGE_BIT_FILE 0 /* software: pagecache or swap? */
93
94#define _PAGE_WT (1 << _PAGE_BIT_WT)
95#define _PAGE_DIRTY (1 << _PAGE_BIT_DIRTY)
96#define _PAGE_EXECUTE (1 << _PAGE_BIT_EXECUTE)
97#define _PAGE_RW (1 << _PAGE_BIT_RW)
98#define _PAGE_USER (1 << _PAGE_BIT_USER)
99#define _PAGE_BUFFER (1 << _PAGE_BIT_BUFFER)
100#define _PAGE_GLOBAL (1 << _PAGE_BIT_GLOBAL)
101#define _PAGE_CACHABLE (1 << _PAGE_BIT_CACHABLE)
102
103/* Software flags */
104#define _PAGE_ACCESSED (1 << _PAGE_BIT_ACCESSED)
105#define _PAGE_PRESENT (1 << _PAGE_BIT_PRESENT)
106#define _PAGE_FILE (1 << _PAGE_BIT_FILE)
107
108/*
109 * Page types, i.e. sizes. _PAGE_TYPE_NONE corresponds to what is
110 * usually called _PAGE_PROTNONE on other architectures.
111 *
112 * XXX: Find out if _PAGE_PROTNONE is equivalent with !_PAGE_USER. If
113 * so, we can encode all possible page sizes (although we can't really
114 * support 1K pages anyway due to the _PAGE_PRESENT and _PAGE_ACCESSED
115 * bits)
116 *
117 */
118#define _PAGE_TYPE_MASK ((1 << _PAGE_BIT_SZ0) | (1 << _PAGE_BIT_SZ1))
119#define _PAGE_TYPE_NONE (0 << _PAGE_BIT_SZ0)
120#define _PAGE_TYPE_SMALL (1 << _PAGE_BIT_SZ0)
121#define _PAGE_TYPE_MEDIUM (2 << _PAGE_BIT_SZ0)
122#define _PAGE_TYPE_LARGE (3 << _PAGE_BIT_SZ0)
123
124/*
125 * Mask which drop software flags. We currently can't handle more than
126 * 512 MiB of physical memory, so we can use bits 29-31 for other
127 * stuff. With a fixed 4K page size, we can use bits 10-11 as well as
128 * bits 2-3 (SZ)
129 */
130#define _PAGE_FLAGS_HARDWARE_MASK 0xfffff3ff
131
132#define _PAGE_FLAGS_CACHE_MASK (_PAGE_CACHABLE | _PAGE_BUFFER | _PAGE_WT)
133
134/* TODO: Check for saneness */
135/* User-mode page table flags (to be set in a pgd or pmd entry) */
136#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_TYPE_SMALL | _PAGE_RW \
137 | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
138/* Kernel-mode page table flags */
139#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_TYPE_SMALL | _PAGE_RW \
140 | _PAGE_ACCESSED | _PAGE_DIRTY)
141/* Flags that may be modified by software */
142#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY \
143 | _PAGE_FLAGS_CACHE_MASK)
144
145#define _PAGE_FLAGS_READ (_PAGE_CACHABLE | _PAGE_BUFFER)
146#define _PAGE_FLAGS_WRITE (_PAGE_FLAGS_READ | _PAGE_RW | _PAGE_DIRTY)
147
148#define _PAGE_NORMAL(x) __pgprot((x) | _PAGE_PRESENT | _PAGE_TYPE_SMALL \
149 | _PAGE_ACCESSED)
150
151#define PAGE_NONE (_PAGE_ACCESSED | _PAGE_TYPE_NONE)
152#define PAGE_READ (_PAGE_FLAGS_READ | _PAGE_USER)
153#define PAGE_EXEC (_PAGE_FLAGS_READ | _PAGE_EXECUTE | _PAGE_USER)
154#define PAGE_WRITE (_PAGE_FLAGS_WRITE | _PAGE_USER)
155#define PAGE_KERNEL _PAGE_NORMAL(_PAGE_FLAGS_WRITE | _PAGE_EXECUTE | _PAGE_GLOBAL)
156#define PAGE_KERNEL_RO _PAGE_NORMAL(_PAGE_FLAGS_READ | _PAGE_EXECUTE | _PAGE_GLOBAL)
157
158#define _PAGE_P(x) _PAGE_NORMAL((x) & ~(_PAGE_RW | _PAGE_DIRTY))
159#define _PAGE_S(x) _PAGE_NORMAL(x)
160
161#define PAGE_COPY _PAGE_P(PAGE_WRITE | PAGE_READ)
162
163#ifndef __ASSEMBLY__
164/*
165 * The hardware supports flags for write- and execute access. Read is
166 * always allowed if the page is loaded into the TLB, so the "-w-",
167 * "--x" and "-wx" mappings are implemented as "rw-", "r-x" and "rwx",
168 * respectively.
169 *
170 * The "---" case is handled by software; the page will simply not be
171 * loaded into the TLB if the page type is _PAGE_TYPE_NONE.
172 */
173
174#define __P000 __pgprot(PAGE_NONE)
175#define __P001 _PAGE_P(PAGE_READ)
176#define __P010 _PAGE_P(PAGE_WRITE)
177#define __P011 _PAGE_P(PAGE_WRITE | PAGE_READ)
178#define __P100 _PAGE_P(PAGE_EXEC)
179#define __P101 _PAGE_P(PAGE_EXEC | PAGE_READ)
180#define __P110 _PAGE_P(PAGE_EXEC | PAGE_WRITE)
181#define __P111 _PAGE_P(PAGE_EXEC | PAGE_WRITE | PAGE_READ)
182
183#define __S000 __pgprot(PAGE_NONE)
184#define __S001 _PAGE_S(PAGE_READ)
185#define __S010 _PAGE_S(PAGE_WRITE)
186#define __S011 _PAGE_S(PAGE_WRITE | PAGE_READ)
187#define __S100 _PAGE_S(PAGE_EXEC)
188#define __S101 _PAGE_S(PAGE_EXEC | PAGE_READ)
189#define __S110 _PAGE_S(PAGE_EXEC | PAGE_WRITE)
190#define __S111 _PAGE_S(PAGE_EXEC | PAGE_WRITE | PAGE_READ)
191
192#define pte_none(x) (!pte_val(x))
193#define pte_present(x) (pte_val(x) & _PAGE_PRESENT)
194
195#define pte_clear(mm,addr,xp) \
196 do { \
197 set_pte_at(mm, addr, xp, __pte(0)); \
198 } while (0)
199
200/*
201 * The following only work if pte_present() is true.
202 * Undefined behaviour if not..
203 */
204static inline int pte_read(pte_t pte)
205{
206 return pte_val(pte) & _PAGE_USER;
207}
208static inline int pte_write(pte_t pte)
209{
210 return pte_val(pte) & _PAGE_RW;
211}
212static inline int pte_exec(pte_t pte)
213{
214 return pte_val(pte) & _PAGE_EXECUTE;
215}
216static inline int pte_dirty(pte_t pte)
217{
218 return pte_val(pte) & _PAGE_DIRTY;
219}
220static inline int pte_young(pte_t pte)
221{
222 return pte_val(pte) & _PAGE_ACCESSED;
223}
224
225/*
226 * The following only work if pte_present() is not true.
227 */
228static inline int pte_file(pte_t pte)
229{
230 return pte_val(pte) & _PAGE_FILE;
231}
232
233/* Mutator functions for PTE bits */
234static inline pte_t pte_rdprotect(pte_t pte)
235{
236 set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER));
237 return pte;
238}
239static inline pte_t pte_wrprotect(pte_t pte)
240{
241 set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_RW));
242 return pte;
243}
244static inline pte_t pte_exprotect(pte_t pte)
245{
246 set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_EXECUTE));
247 return pte;
248}
249static inline pte_t pte_mkclean(pte_t pte)
250{
251 set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY));
252 return pte;
253}
254static inline pte_t pte_mkold(pte_t pte)
255{
256 set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED));
257 return pte;
258}
259static inline pte_t pte_mkread(pte_t pte)
260{
261 set_pte(&pte, __pte(pte_val(pte) | _PAGE_USER));
262 return pte;
263}
264static inline pte_t pte_mkwrite(pte_t pte)
265{
266 set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW));
267 return pte;
268}
269static inline pte_t pte_mkexec(pte_t pte)
270{
271 set_pte(&pte, __pte(pte_val(pte) | _PAGE_EXECUTE));
272 return pte;
273}
274static inline pte_t pte_mkdirty(pte_t pte)
275{
276 set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY));
277 return pte;
278}
279static inline pte_t pte_mkyoung(pte_t pte)
280{
281 set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED));
282 return pte;
283}
284
285#define pmd_none(x) (!pmd_val(x))
286#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT)
287#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0)
288#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) \
289 != _KERNPG_TABLE)
290
291/*
292 * Permanent address of a page. We don't support highmem, so this is
293 * trivial.
294 */
295#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
296#define pte_page(x) phys_to_page(pte_val(x) & PTE_PHYS_MASK)
297
298/*
299 * Mark the prot value as uncacheable and unbufferable
300 */
301#define pgprot_noncached(prot) \
302 __pgprot(pgprot_val(prot) & ~(_PAGE_BUFFER | _PAGE_CACHABLE))
303
304/*
305 * Mark the prot value as uncacheable but bufferable
306 */
307#define pgprot_writecombine(prot) \
308 __pgprot((pgprot_val(prot) & ~_PAGE_CACHABLE) | _PAGE_BUFFER)
309
310/*
311 * Conversion functions: convert a page and protection to a page entry,
312 * and a page entry and page directory to the page they refer to.
313 *
314 * extern pte_t mk_pte(struct page *page, pgprot_t pgprot)
315 */
316#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
317
318static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
319{
320 set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK)
321 | pgprot_val(newprot)));
322 return pte;
323}
324
325#define page_pte(page) page_pte_prot(page, __pgprot(0))
326
327#define pmd_page_vaddr(pmd) \
328 ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
329
330#define pmd_page(pmd) (phys_to_page(pmd_val(pmd)))
331
332/* to find an entry in a page-table-directory. */
333#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
334#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
335#define pgd_offset_current(address) \
336 ((pgd_t *)__mfsr(SYSREG_PTBR) + pgd_index(address))
337
338/* to find an entry in a kernel page-table-directory */
339#define pgd_offset_k(address) pgd_offset(&init_mm, address)
340
341/* Find an entry in the third-level page table.. */
342#define pte_index(address) \
343 ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
344#define pte_offset(dir, address) \
345 ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
346#define pte_offset_kernel(dir, address) \
347 ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
348#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
349#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address)
350#define pte_unmap(pte) do { } while (0)
351#define pte_unmap_nested(pte) do { } while (0)
352
353struct vm_area_struct;
354extern void update_mmu_cache(struct vm_area_struct * vma,
355 unsigned long address, pte_t pte);
356
357/*
358 * Encode and decode a swap entry
359 *
360 * Constraints:
361 * _PAGE_FILE at bit 0
362 * _PAGE_TYPE_* at bits 2-3 (for emulating _PAGE_PROTNONE)
363 * _PAGE_PRESENT at bit 10
364 *
365 * We encode the type into bits 4-9 and offset into bits 11-31. This
366 * gives us a 21 bits offset, or 2**21 * 4K = 8G usable swap space per
367 * device, and 64 possible types.
368 *
369 * NOTE: We should set ZEROs at the position of _PAGE_PRESENT
370 * and _PAGE_PROTNONE bits
371 */
372#define __swp_type(x) (((x).val >> 4) & 0x3f)
373#define __swp_offset(x) ((x).val >> 11)
374#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 4) | ((offset) << 11) })
375#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
376#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
377
378/*
379 * Encode and decode a nonlinear file mapping entry. We have to
380 * preserve _PAGE_FILE and _PAGE_PRESENT here. _PAGE_TYPE_* isn't
381 * necessary, since _PAGE_FILE implies !_PAGE_PROTNONE (?)
382 */
383#define PTE_FILE_MAX_BITS 30
384#define pte_to_pgoff(pte) (((pte_val(pte) >> 1) & 0x1ff) \
385 | ((pte_val(pte) >> 11) << 9))
386#define pgoff_to_pte(off) ((pte_t) { ((((off) & 0x1ff) << 1) \
387 | (((off) >> 9) << 11) \
388 | _PAGE_FILE) })
389
390typedef pte_t *pte_addr_t;
391
392#define kern_addr_valid(addr) (1)
393
394#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
395 remap_pfn_range(vma, vaddr, pfn, size, prot)
396
397#define MK_IOSPACE_PFN(space, pfn) (pfn)
398#define GET_IOSPACE(pfn) 0
399#define GET_PFN(pfn) (pfn)
400
401/* No page table caches to initialize (?) */
402#define pgtable_cache_init() do { } while(0)
403
404#include <asm-generic/pgtable.h>
405
406#endif /* !__ASSEMBLY__ */
407
408#endif /* __ASM_AVR32_PGTABLE_H */
diff --git a/include/asm-avr32/poll.h b/include/asm-avr32/poll.h
new file mode 100644
index 000000000000..736e29755dfc
--- /dev/null
+++ b/include/asm-avr32/poll.h
@@ -0,0 +1,27 @@
1#ifndef __ASM_AVR32_POLL_H
2#define __ASM_AVR32_POLL_H
3
4/* These are specified by iBCS2 */
5#define POLLIN 0x0001
6#define POLLPRI 0x0002
7#define POLLOUT 0x0004
8#define POLLERR 0x0008
9#define POLLHUP 0x0010
10#define POLLNVAL 0x0020
11
12/* The rest seem to be more-or-less nonstandard. Check them! */
13#define POLLRDNORM 0x0040
14#define POLLRDBAND 0x0080
15#define POLLWRNORM 0x0100
16#define POLLWRBAND 0x0200
17#define POLLMSG 0x0400
18#define POLLREMOVE 0x1000
19#define POLLRDHUP 0x2000
20
21struct pollfd {
22 int fd;
23 short events;
24 short revents;
25};
26
27#endif /* __ASM_AVR32_POLL_H */
diff --git a/include/asm-avr32/posix_types.h b/include/asm-avr32/posix_types.h
new file mode 100644
index 000000000000..2831b039b349
--- /dev/null
+++ b/include/asm-avr32/posix_types.h
@@ -0,0 +1,129 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_POSIX_TYPES_H
9#define __ASM_AVR32_POSIX_TYPES_H
10
11/*
12 * This file is generally used by user-level software, so you need to
13 * be a little careful about namespace pollution etc. Also, we cannot
14 * assume GCC is being used.
15 */
16
17typedef unsigned long __kernel_ino_t;
18typedef unsigned short __kernel_mode_t;
19typedef unsigned short __kernel_nlink_t;
20typedef long __kernel_off_t;
21typedef int __kernel_pid_t;
22typedef unsigned short __kernel_ipc_pid_t;
23typedef unsigned int __kernel_uid_t;
24typedef unsigned int __kernel_gid_t;
25typedef unsigned long __kernel_size_t;
26typedef int __kernel_ssize_t;
27typedef int __kernel_ptrdiff_t;
28typedef long __kernel_time_t;
29typedef long __kernel_suseconds_t;
30typedef long __kernel_clock_t;
31typedef int __kernel_timer_t;
32typedef int __kernel_clockid_t;
33typedef int __kernel_daddr_t;
34typedef char * __kernel_caddr_t;
35typedef unsigned short __kernel_uid16_t;
36typedef unsigned short __kernel_gid16_t;
37typedef unsigned int __kernel_uid32_t;
38typedef unsigned int __kernel_gid32_t;
39
40typedef unsigned short __kernel_old_uid_t;
41typedef unsigned short __kernel_old_gid_t;
42typedef unsigned short __kernel_old_dev_t;
43
44#ifdef __GNUC__
45typedef long long __kernel_loff_t;
46#endif
47
48typedef struct {
49#if defined(__KERNEL__) || defined(__USE_ALL)
50 int val[2];
51#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
52 int __val[2];
53#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
54} __kernel_fsid_t;
55
56#if defined(__KERNEL__)
57
58#undef __FD_SET
59static __inline__ void __FD_SET(unsigned long __fd, __kernel_fd_set *__fdsetp)
60{
61 unsigned long __tmp = __fd / __NFDBITS;
62 unsigned long __rem = __fd % __NFDBITS;
63 __fdsetp->fds_bits[__tmp] |= (1UL<<__rem);
64}
65
66#undef __FD_CLR
67static __inline__ void __FD_CLR(unsigned long __fd, __kernel_fd_set *__fdsetp)
68{
69 unsigned long __tmp = __fd / __NFDBITS;
70 unsigned long __rem = __fd % __NFDBITS;
71 __fdsetp->fds_bits[__tmp] &= ~(1UL<<__rem);
72}
73
74
75#undef __FD_ISSET
76static __inline__ int __FD_ISSET(unsigned long __fd, const __kernel_fd_set *__p)
77{
78 unsigned long __tmp = __fd / __NFDBITS;
79 unsigned long __rem = __fd % __NFDBITS;
80 return (__p->fds_bits[__tmp] & (1UL<<__rem)) != 0;
81}
82
83/*
84 * This will unroll the loop for the normal constant case (8 ints,
85 * for a 256-bit fd_set)
86 */
87#undef __FD_ZERO
88static __inline__ void __FD_ZERO(__kernel_fd_set *__p)
89{
90 unsigned long *__tmp = __p->fds_bits;
91 int __i;
92
93 if (__builtin_constant_p(__FDSET_LONGS)) {
94 switch (__FDSET_LONGS) {
95 case 16:
96 __tmp[ 0] = 0; __tmp[ 1] = 0;
97 __tmp[ 2] = 0; __tmp[ 3] = 0;
98 __tmp[ 4] = 0; __tmp[ 5] = 0;
99 __tmp[ 6] = 0; __tmp[ 7] = 0;
100 __tmp[ 8] = 0; __tmp[ 9] = 0;
101 __tmp[10] = 0; __tmp[11] = 0;
102 __tmp[12] = 0; __tmp[13] = 0;
103 __tmp[14] = 0; __tmp[15] = 0;
104 return;
105
106 case 8:
107 __tmp[ 0] = 0; __tmp[ 1] = 0;
108 __tmp[ 2] = 0; __tmp[ 3] = 0;
109 __tmp[ 4] = 0; __tmp[ 5] = 0;
110 __tmp[ 6] = 0; __tmp[ 7] = 0;
111 return;
112
113 case 4:
114 __tmp[ 0] = 0; __tmp[ 1] = 0;
115 __tmp[ 2] = 0; __tmp[ 3] = 0;
116 return;
117 }
118 }
119 __i = __FDSET_LONGS;
120 while (__i) {
121 __i--;
122 *__tmp = 0;
123 __tmp++;
124 }
125}
126
127#endif /* defined(__KERNEL__) */
128
129#endif /* __ASM_AVR32_POSIX_TYPES_H */
diff --git a/include/asm-avr32/processor.h b/include/asm-avr32/processor.h
new file mode 100644
index 000000000000..f6913778a45f
--- /dev/null
+++ b/include/asm-avr32/processor.h
@@ -0,0 +1,147 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_PROCESSOR_H
9#define __ASM_AVR32_PROCESSOR_H
10
11#include <asm/page.h>
12#include <asm/cache.h>
13
14#define TASK_SIZE 0x80000000
15
16#ifndef __ASSEMBLY__
17
18static inline void *current_text_addr(void)
19{
20 register void *pc asm("pc");
21 return pc;
22}
23
24enum arch_type {
25 ARCH_AVR32A,
26 ARCH_AVR32B,
27 ARCH_MAX
28};
29
30enum cpu_type {
31 CPU_MORGAN,
32 CPU_AT32AP,
33 CPU_MAX
34};
35
36enum tlb_config {
37 TLB_NONE,
38 TLB_SPLIT,
39 TLB_UNIFIED,
40 TLB_INVALID
41};
42
43struct avr32_cpuinfo {
44 struct clk *clk;
45 unsigned long loops_per_jiffy;
46 enum arch_type arch_type;
47 enum cpu_type cpu_type;
48 unsigned short arch_revision;
49 unsigned short cpu_revision;
50 enum tlb_config tlb_config;
51
52 struct cache_info icache;
53 struct cache_info dcache;
54};
55
56extern struct avr32_cpuinfo boot_cpu_data;
57
58#ifdef CONFIG_SMP
59extern struct avr32_cpuinfo cpu_data[];
60#define current_cpu_data cpu_data[smp_processor_id()]
61#else
62#define cpu_data (&boot_cpu_data)
63#define current_cpu_data boot_cpu_data
64#endif
65
66/* This decides where the kernel will search for a free chunk of vm
67 * space during mmap's
68 */
69#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
70
71#define cpu_relax() barrier()
72#define cpu_sync_pipeline() asm volatile("sub pc, -2" : : : "memory")
73
74struct cpu_context {
75 unsigned long sr;
76 unsigned long pc;
77 unsigned long ksp; /* Kernel stack pointer */
78 unsigned long r7;
79 unsigned long r6;
80 unsigned long r5;
81 unsigned long r4;
82 unsigned long r3;
83 unsigned long r2;
84 unsigned long r1;
85 unsigned long r0;
86};
87
88/* This struct contains the CPU context as stored by switch_to() */
89struct thread_struct {
90 struct cpu_context cpu_context;
91 unsigned long single_step_addr;
92 u16 single_step_insn;
93};
94
95#define INIT_THREAD { \
96 .cpu_context = { \
97 .ksp = sizeof(init_stack) + (long)&init_stack, \
98 }, \
99}
100
101/*
102 * Do necessary setup to start up a newly executed thread.
103 */
104#define start_thread(regs, new_pc, new_sp) \
105 do { \
106 set_fs(USER_DS); \
107 memset(regs, 0, sizeof(*regs)); \
108 regs->sr = MODE_USER; \
109 regs->pc = new_pc & ~1; \
110 regs->sp = new_sp; \
111 } while(0)
112
113struct task_struct;
114
115/* Free all resources held by a thread */
116extern void release_thread(struct task_struct *);
117
118/* Create a kernel thread without removing it from tasklists */
119extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
120
121/* Prepare to copy thread state - unlazy all lazy status */
122#define prepare_to_copy(tsk) do { } while(0)
123
124/* Return saved PC of a blocked thread */
125#define thread_saved_pc(tsk) ((tsk)->thread.cpu_context.pc)
126
127struct pt_regs;
128void show_trace(struct task_struct *task, unsigned long *stack,
129 struct pt_regs *regs);
130
131extern unsigned long get_wchan(struct task_struct *p);
132
133#define KSTK_EIP(tsk) ((tsk)->thread.cpu_context.pc)
134#define KSTK_ESP(tsk) ((tsk)->thread.cpu_context.ksp)
135
136#define ARCH_HAS_PREFETCH
137
138static inline void prefetch(const void *x)
139{
140 const char *c = x;
141 asm volatile("pref %0" : : "r"(c));
142}
143#define PREFETCH_STRIDE L1_CACHE_BYTES
144
145#endif /* __ASSEMBLY__ */
146
147#endif /* __ASM_AVR32_PROCESSOR_H */
diff --git a/include/asm-avr32/ptrace.h b/include/asm-avr32/ptrace.h
new file mode 100644
index 000000000000..60f0f19a81f1
--- /dev/null
+++ b/include/asm-avr32/ptrace.h
@@ -0,0 +1,154 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_PTRACE_H
9#define __ASM_AVR32_PTRACE_H
10
11#define PTRACE_GETREGS 12
12#define PTRACE_SETREGS 13
13
14/*
15 * Status Register bits
16 */
17#define SR_H 0x40000000
18#define SR_R 0x20000000
19#define SR_J 0x10000000
20#define SR_DM 0x08000000
21#define SR_D 0x04000000
22#define MODE_NMI 0x01c00000
23#define MODE_EXCEPTION 0x01800000
24#define MODE_INT3 0x01400000
25#define MODE_INT2 0x01000000
26#define MODE_INT1 0x00c00000
27#define MODE_INT0 0x00800000
28#define MODE_SUPERVISOR 0x00400000
29#define MODE_USER 0x00000000
30#define MODE_MASK 0x01c00000
31#define SR_EM 0x00200000
32#define SR_I3M 0x00100000
33#define SR_I2M 0x00080000
34#define SR_I1M 0x00040000
35#define SR_I0M 0x00020000
36#define SR_GM 0x00010000
37
38#define SR_H_BIT 30
39#define SR_R_BIT 29
40#define SR_J_BIT 28
41#define SR_DM_BIT 27
42#define SR_D_BIT 26
43#define MODE_SHIFT 22
44#define SR_EM_BIT 21
45#define SR_I3M_BIT 20
46#define SR_I2M_BIT 19
47#define SR_I1M_BIT 18
48#define SR_I0M_BIT 17
49#define SR_GM_BIT 16
50
51/* The user-visible part */
52#define SR_L 0x00000020
53#define SR_Q 0x00000010
54#define SR_V 0x00000008
55#define SR_N 0x00000004
56#define SR_Z 0x00000002
57#define SR_C 0x00000001
58
59#define SR_L_BIT 5
60#define SR_Q_BIT 4
61#define SR_V_BIT 3
62#define SR_N_BIT 2
63#define SR_Z_BIT 1
64#define SR_C_BIT 0
65
66/*
67 * The order is defined by the stmts instruction. r0 is stored first,
68 * so it gets the highest address.
69 *
70 * Registers 0-12 are general-purpose registers (r12 is normally used for
71 * the function return value).
72 * Register 13 is the stack pointer
73 * Register 14 is the link register
74 * Register 15 is the program counter (retrieved from the RAR sysreg)
75 */
76#define FRAME_SIZE_FULL 72
77#define REG_R12_ORIG 68
78#define REG_R0 64
79#define REG_R1 60
80#define REG_R2 56
81#define REG_R3 52
82#define REG_R4 48
83#define REG_R5 44
84#define REG_R6 40
85#define REG_R7 36
86#define REG_R8 32
87#define REG_R9 28
88#define REG_R10 24
89#define REG_R11 20
90#define REG_R12 16
91#define REG_SP 12
92#define REG_LR 8
93
94#define FRAME_SIZE_MIN 8
95#define REG_PC 4
96#define REG_SR 0
97
98#ifndef __ASSEMBLY__
99struct pt_regs {
100 /* These are always saved */
101 unsigned long sr;
102 unsigned long pc;
103
104 /* These are sometimes saved */
105 unsigned long lr;
106 unsigned long sp;
107 unsigned long r12;
108 unsigned long r11;
109 unsigned long r10;
110 unsigned long r9;
111 unsigned long r8;
112 unsigned long r7;
113 unsigned long r6;
114 unsigned long r5;
115 unsigned long r4;
116 unsigned long r3;
117 unsigned long r2;
118 unsigned long r1;
119 unsigned long r0;
120
121 /* Only saved on system call */
122 unsigned long r12_orig;
123};
124
125#ifdef __KERNEL__
126# define user_mode(regs) (((regs)->sr & MODE_MASK) == MODE_USER)
127extern void show_regs (struct pt_regs *);
128
129static __inline__ int valid_user_regs(struct pt_regs *regs)
130{
131 /*
132 * Some of the Java bits might be acceptable if/when we
133 * implement some support for that stuff...
134 */
135 if ((regs->sr & 0xffff0000) == 0)
136 return 1;
137
138 /*
139 * Force status register flags to be sane and report this
140 * illegal behaviour...
141 */
142 regs->sr &= 0x0000ffff;
143 return 0;
144}
145
146#define instruction_pointer(regs) ((regs)->pc)
147
148#define profile_pc(regs) instruction_pointer(regs)
149
150#endif /* __KERNEL__ */
151
152#endif /* ! __ASSEMBLY__ */
153
154#endif /* __ASM_AVR32_PTRACE_H */
diff --git a/include/asm-avr32/resource.h b/include/asm-avr32/resource.h
new file mode 100644
index 000000000000..c6dd101472b1
--- /dev/null
+++ b/include/asm-avr32/resource.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_RESOURCE_H
2#define __ASM_AVR32_RESOURCE_H
3
4#include <asm-generic/resource.h>
5
6#endif /* __ASM_AVR32_RESOURCE_H */
diff --git a/include/asm-avr32/scatterlist.h b/include/asm-avr32/scatterlist.h
new file mode 100644
index 000000000000..bfe7d753423c
--- /dev/null
+++ b/include/asm-avr32/scatterlist.h
@@ -0,0 +1,21 @@
1#ifndef __ASM_AVR32_SCATTERLIST_H
2#define __ASM_AVR32_SCATTERLIST_H
3
4struct scatterlist {
5 struct page *page;
6 unsigned int offset;
7 dma_addr_t dma_address;
8 unsigned int length;
9};
10
11/* These macros should be used after a pci_map_sg call has been done
12 * to get bus addresses of each of the SG entries and their lengths.
13 * You should only work with the number of sg entries pci_map_sg
14 * returns.
15 */
16#define sg_dma_address(sg) ((sg)->dma_address)
17#define sg_dma_len(sg) ((sg)->length)
18
19#define ISA_DMA_THRESHOLD (0xffffffff)
20
21#endif /* __ASM_AVR32_SCATTERLIST_H */
diff --git a/include/asm-avr32/sections.h b/include/asm-avr32/sections.h
new file mode 100644
index 000000000000..aa14252e4181
--- /dev/null
+++ b/include/asm-avr32/sections.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_SECTIONS_H
2#define __ASM_AVR32_SECTIONS_H
3
4#include <asm-generic/sections.h>
5
6#endif /* __ASM_AVR32_SECTIONS_H */
diff --git a/include/asm-avr32/semaphore.h b/include/asm-avr32/semaphore.h
new file mode 100644
index 000000000000..ef99ddccc10c
--- /dev/null
+++ b/include/asm-avr32/semaphore.h
@@ -0,0 +1,109 @@
1/*
2 * SMP- and interrupt-safe semaphores.
3 *
4 * Copyright (C) 2006 Atmel Corporation
5 *
6 * Based on include/asm-i386/semaphore.h
7 * Copyright (C) 1996 Linus Torvalds
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13#ifndef __ASM_AVR32_SEMAPHORE_H
14#define __ASM_AVR32_SEMAPHORE_H
15
16#include <linux/linkage.h>
17
18#include <asm/system.h>
19#include <asm/atomic.h>
20#include <linux/wait.h>
21#include <linux/rwsem.h>
22
23struct semaphore {
24 atomic_t count;
25 int sleepers;
26 wait_queue_head_t wait;
27};
28
29#define __SEMAPHORE_INITIALIZER(name, n) \
30{ \
31 .count = ATOMIC_INIT(n), \
32 .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \
33}
34
35#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
36 struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
37
38#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
39#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
40
41static inline void sema_init (struct semaphore *sem, int val)
42{
43 atomic_set(&sem->count, val);
44 sem->sleepers = 0;
45 init_waitqueue_head(&sem->wait);
46}
47
48static inline void init_MUTEX (struct semaphore *sem)
49{
50 sema_init(sem, 1);
51}
52
53static inline void init_MUTEX_LOCKED (struct semaphore *sem)
54{
55 sema_init(sem, 0);
56}
57
58void __down(struct semaphore * sem);
59int __down_interruptible(struct semaphore * sem);
60void __up(struct semaphore * sem);
61
62/*
63 * This is ugly, but we want the default case to fall through.
64 * "__down_failed" is a special asm handler that calls the C
65 * routine that actually waits. See arch/i386/kernel/semaphore.c
66 */
67static inline void down(struct semaphore * sem)
68{
69 might_sleep();
70 if (unlikely(atomic_dec_return (&sem->count) < 0))
71 __down (sem);
72}
73
74/*
75 * Interruptible try to acquire a semaphore. If we obtained
76 * it, return zero. If we were interrupted, returns -EINTR
77 */
78static inline int down_interruptible(struct semaphore * sem)
79{
80 int ret = 0;
81
82 might_sleep();
83 if (unlikely(atomic_dec_return (&sem->count) < 0))
84 ret = __down_interruptible (sem);
85 return ret;
86}
87
88/*
89 * Non-blockingly attempt to down() a semaphore.
90 * Returns zero if we acquired it
91 */
92static inline int down_trylock(struct semaphore * sem)
93{
94 return atomic_dec_if_positive(&sem->count) < 0;
95}
96
97/*
98 * Note! This is subtle. We jump to wake people up only if
99 * the semaphore was negative (== somebody was waiting on it).
100 * The default case (no contention) will result in NO
101 * jumps for both down() and up().
102 */
103static inline void up(struct semaphore * sem)
104{
105 if (unlikely(atomic_inc_return (&sem->count) <= 0))
106 __up (sem);
107}
108
109#endif /*__ASM_AVR32_SEMAPHORE_H */
diff --git a/include/asm-avr32/sembuf.h b/include/asm-avr32/sembuf.h
new file mode 100644
index 000000000000..e472216e0c97
--- /dev/null
+++ b/include/asm-avr32/sembuf.h
@@ -0,0 +1,25 @@
1#ifndef __ASM_AVR32_SEMBUF_H
2#define __ASM_AVR32_SEMBUF_H
3
4/*
5* The semid64_ds structure for AVR32 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 semid64_ds {
15 struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
16 __kernel_time_t sem_otime; /* last semop time */
17 unsigned long __unused1;
18 __kernel_time_t sem_ctime; /* last change time */
19 unsigned long __unused2;
20 unsigned long sem_nsems; /* no. of semaphores in array */
21 unsigned long __unused3;
22 unsigned long __unused4;
23};
24
25#endif /* __ASM_AVR32_SEMBUF_H */
diff --git a/include/asm-avr32/setup.h b/include/asm-avr32/setup.h
new file mode 100644
index 000000000000..10193da4113b
--- /dev/null
+++ b/include/asm-avr32/setup.h
@@ -0,0 +1,141 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * Based on linux/include/asm-arm/setup.h
5 * Copyright (C) 1997-1999 Russel King
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef __ASM_AVR32_SETUP_H__
12#define __ASM_AVR32_SETUP_H__
13
14#define COMMAND_LINE_SIZE 256
15
16/* Magic number indicating that a tag table is present */
17#define ATAG_MAGIC 0xa2a25441
18
19#ifndef __ASSEMBLY__
20
21/*
22 * Generic memory range, used by several tags.
23 *
24 * addr is always physical.
25 * size is measured in bytes.
26 * next is for use by the OS, e.g. for grouping regions into
27 * linked lists.
28 */
29struct tag_mem_range {
30 u32 addr;
31 u32 size;
32 struct tag_mem_range * next;
33};
34
35/* The list ends with an ATAG_NONE node. */
36#define ATAG_NONE 0x00000000
37
38struct tag_header {
39 u32 size;
40 u32 tag;
41};
42
43/* The list must start with an ATAG_CORE node */
44#define ATAG_CORE 0x54410001
45
46struct tag_core {
47 u32 flags;
48 u32 pagesize;
49 u32 rootdev;
50};
51
52/* it is allowed to have multiple ATAG_MEM nodes */
53#define ATAG_MEM 0x54410002
54/* ATAG_MEM uses tag_mem_range */
55
56/* command line: \0 terminated string */
57#define ATAG_CMDLINE 0x54410003
58
59struct tag_cmdline {
60 char cmdline[1]; /* this is the minimum size */
61};
62
63/* Ramdisk image (may be compressed) */
64#define ATAG_RDIMG 0x54410004
65/* ATAG_RDIMG uses tag_mem_range */
66
67/* Information about various clocks present in the system */
68#define ATAG_CLOCK 0x54410005
69
70struct tag_clock {
71 u32 clock_id; /* Which clock are we talking about? */
72 u32 clock_flags; /* Special features */
73 u64 clock_hz; /* Clock speed in Hz */
74};
75
76/* The clock types we know about */
77#define CLOCK_BOOTCPU 0
78
79/* Memory reserved for the system (e.g. the bootloader) */
80#define ATAG_RSVD_MEM 0x54410006
81/* ATAG_RSVD_MEM uses tag_mem_range */
82
83/* Ethernet information */
84
85#define ATAG_ETHERNET 0x54410007
86
87struct tag_ethernet {
88 u8 mac_index;
89 u8 mii_phy_addr;
90 u8 hw_address[6];
91};
92
93#define ETH_INVALID_PHY 0xff
94
95struct tag {
96 struct tag_header hdr;
97 union {
98 struct tag_core core;
99 struct tag_mem_range mem_range;
100 struct tag_cmdline cmdline;
101 struct tag_clock clock;
102 struct tag_ethernet ethernet;
103 } u;
104};
105
106struct tagtable {
107 u32 tag;
108 int (*parse)(struct tag *);
109};
110
111#define __tag __attribute_used__ __attribute__((__section__(".taglist")))
112#define __tagtable(tag, fn) \
113 static struct tagtable __tagtable_##fn __tag = { tag, fn }
114
115#define tag_member_present(tag,member) \
116 ((unsigned long)(&((struct tag *)0L)->member + 1) \
117 <= (tag)->hdr.size * 4)
118
119#define tag_next(t) ((struct tag *)((u32 *)(t) + (t)->hdr.size))
120#define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
121
122#define for_each_tag(t,base) \
123 for (t = base; t->hdr.size; t = tag_next(t))
124
125extern struct tag_mem_range *mem_phys;
126extern struct tag_mem_range *mem_reserved;
127extern struct tag_mem_range *mem_ramdisk;
128
129extern struct tag *bootloader_tags;
130
131extern void setup_bootmem(void);
132extern void setup_processor(void);
133extern void board_setup_fbmem(unsigned long fbmem_start,
134 unsigned long fbmem_size);
135
136/* Chip-specific hook to enable the use of SDRAM */
137void chip_enable_sdram(void);
138
139#endif /* !__ASSEMBLY__ */
140
141#endif /* __ASM_AVR32_SETUP_H__ */
diff --git a/include/asm-avr32/shmbuf.h b/include/asm-avr32/shmbuf.h
new file mode 100644
index 000000000000..c62fba41739a
--- /dev/null
+++ b/include/asm-avr32/shmbuf.h
@@ -0,0 +1,42 @@
1#ifndef __ASM_AVR32_SHMBUF_H
2#define __ASM_AVR32_SHMBUF_H
3
4/*
5 * The shmid64_ds structure for i386 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_AVR32_SHMBUF_H */
diff --git a/include/asm-avr32/shmparam.h b/include/asm-avr32/shmparam.h
new file mode 100644
index 000000000000..3681266c77f7
--- /dev/null
+++ b/include/asm-avr32/shmparam.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_SHMPARAM_H
2#define __ASM_AVR32_SHMPARAM_H
3
4#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
5
6#endif /* __ASM_AVR32_SHMPARAM_H */
diff --git a/include/asm-avr32/sigcontext.h b/include/asm-avr32/sigcontext.h
new file mode 100644
index 000000000000..e04062b5f39f
--- /dev/null
+++ b/include/asm-avr32/sigcontext.h
@@ -0,0 +1,34 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_SIGCONTEXT_H
9#define __ASM_AVR32_SIGCONTEXT_H
10
11struct sigcontext {
12 unsigned long oldmask;
13
14 /* CPU registers */
15 unsigned long sr;
16 unsigned long pc;
17 unsigned long lr;
18 unsigned long sp;
19 unsigned long r12;
20 unsigned long r11;
21 unsigned long r10;
22 unsigned long r9;
23 unsigned long r8;
24 unsigned long r7;
25 unsigned long r6;
26 unsigned long r5;
27 unsigned long r4;
28 unsigned long r3;
29 unsigned long r2;
30 unsigned long r1;
31 unsigned long r0;
32};
33
34#endif /* __ASM_AVR32_SIGCONTEXT_H */
diff --git a/include/asm-avr32/siginfo.h b/include/asm-avr32/siginfo.h
new file mode 100644
index 000000000000..5ee93f40a8a8
--- /dev/null
+++ b/include/asm-avr32/siginfo.h
@@ -0,0 +1,6 @@
1#ifndef _AVR32_SIGINFO_H
2#define _AVR32_SIGINFO_H
3
4#include <asm-generic/siginfo.h>
5
6#endif
diff --git a/include/asm-avr32/signal.h b/include/asm-avr32/signal.h
new file mode 100644
index 000000000000..caffefeeba1f
--- /dev/null
+++ b/include/asm-avr32/signal.h
@@ -0,0 +1,168 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_SIGNAL_H
9#define __ASM_AVR32_SIGNAL_H
10
11#include <linux/types.h>
12
13/* Avoid too many header ordering problems. */
14struct siginfo;
15
16#ifdef __KERNEL__
17/* Most things should be clean enough to redefine this at will, if care
18 is taken to make libc match. */
19
20#define _NSIG 64
21#define _NSIG_BPW 32
22#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
23
24typedef unsigned long old_sigset_t; /* at least 32 bits */
25
26typedef struct {
27 unsigned long sig[_NSIG_WORDS];
28} sigset_t;
29
30#else
31/* Here we must cater to libcs that poke about in kernel headers. */
32
33#define NSIG 32
34typedef unsigned long sigset_t;
35
36#endif /* __KERNEL__ */
37
38#define SIGHUP 1
39#define SIGINT 2
40#define SIGQUIT 3
41#define SIGILL 4
42#define SIGTRAP 5
43#define SIGABRT 6
44#define SIGIOT 6
45#define SIGBUS 7
46#define SIGFPE 8
47#define SIGKILL 9
48#define SIGUSR1 10
49#define SIGSEGV 11
50#define SIGUSR2 12
51#define SIGPIPE 13
52#define SIGALRM 14
53#define SIGTERM 15
54#define SIGSTKFLT 16
55#define SIGCHLD 17
56#define SIGCONT 18
57#define SIGSTOP 19
58#define SIGTSTP 20
59#define SIGTTIN 21
60#define SIGTTOU 22
61#define SIGURG 23
62#define SIGXCPU 24
63#define SIGXFSZ 25
64#define SIGVTALRM 26
65#define SIGPROF 27
66#define SIGWINCH 28
67#define SIGIO 29
68#define SIGPOLL SIGIO
69/*
70#define SIGLOST 29
71*/
72#define SIGPWR 30
73#define SIGSYS 31
74#define SIGUNUSED 31
75
76/* These should not be considered constants from userland. */
77#define SIGRTMIN 32
78#define SIGRTMAX (_NSIG-1)
79
80/*
81 * SA_FLAGS values:
82 *
83 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
84 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
85 * SA_SIGINFO deliver the signal with SIGINFO structs
86 * SA_ONSTACK indicates that a registered stack_t will be used.
87 * SA_RESTART flag to get restarting signals (which were the default long ago)
88 * SA_NODEFER prevents the current signal from being masked in the handler.
89 * SA_RESETHAND clears the handler when the signal is delivered.
90 *
91 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
92 * Unix names RESETHAND and NODEFER respectively.
93 */
94#define SA_NOCLDSTOP 0x00000001
95#define SA_NOCLDWAIT 0x00000002
96#define SA_SIGINFO 0x00000004
97#define SA_RESTORER 0x04000000
98#define SA_ONSTACK 0x08000000
99#define SA_RESTART 0x10000000
100#define SA_NODEFER 0x40000000
101#define SA_RESETHAND 0x80000000
102
103#define SA_NOMASK SA_NODEFER
104#define SA_ONESHOT SA_RESETHAND
105
106/*
107 * sigaltstack controls
108 */
109#define SS_ONSTACK 1
110#define SS_DISABLE 2
111
112#define MINSIGSTKSZ 2048
113#define SIGSTKSZ 8192
114
115#include <asm-generic/signal.h>
116
117#ifdef __KERNEL__
118struct old_sigaction {
119 __sighandler_t sa_handler;
120 old_sigset_t sa_mask;
121 unsigned long sa_flags;
122 __sigrestore_t sa_restorer;
123};
124
125struct sigaction {
126 __sighandler_t sa_handler;
127 unsigned long sa_flags;
128 __sigrestore_t sa_restorer;
129 sigset_t sa_mask; /* mask last for extensibility */
130};
131
132struct k_sigaction {
133 struct sigaction sa;
134};
135#else
136/* Here we must cater to libcs that poke about in kernel headers. */
137
138struct sigaction {
139 union {
140 __sighandler_t _sa_handler;
141 void (*_sa_sigaction)(int, struct siginfo *, void *);
142 } _u;
143 sigset_t sa_mask;
144 unsigned long sa_flags;
145 void (*sa_restorer)(void);
146};
147
148#define sa_handler _u._sa_handler
149#define sa_sigaction _u._sa_sigaction
150
151#endif /* __KERNEL__ */
152
153typedef struct sigaltstack {
154 void __user *ss_sp;
155 int ss_flags;
156 size_t ss_size;
157} stack_t;
158
159#ifdef __KERNEL__
160
161#include <asm/sigcontext.h>
162#undef __HAVE_ARCH_SIG_BITOPS
163
164#define ptrace_signal_deliver(regs, cookie) do { } while (0)
165
166#endif /* __KERNEL__ */
167
168#endif
diff --git a/include/asm-avr32/socket.h b/include/asm-avr32/socket.h
new file mode 100644
index 000000000000..543229de8173
--- /dev/null
+++ b/include/asm-avr32/socket.h
@@ -0,0 +1,53 @@
1#ifndef __ASM_AVR32_SOCKET_H
2#define __ASM_AVR32_SOCKET_H
3
4#include <asm/sockios.h>
5
6/* For setsockopt(2) */
7#define SOL_SOCKET 1
8
9#define SO_DEBUG 1
10#define SO_REUSEADDR 2
11#define SO_TYPE 3
12#define SO_ERROR 4
13#define SO_DONTROUTE 5
14#define SO_BROADCAST 6
15#define SO_SNDBUF 7
16#define SO_RCVBUF 8
17#define SO_SNDBUFFORCE 32
18#define SO_RCVBUFFORCE 33
19#define SO_KEEPALIVE 9
20#define SO_OOBINLINE 10
21#define SO_NO_CHECK 11
22#define SO_PRIORITY 12
23#define SO_LINGER 13
24#define SO_BSDCOMPAT 14
25/* To add :#define SO_REUSEPORT 15 */
26#define SO_PASSCRED 16
27#define SO_PEERCRED 17
28#define SO_RCVLOWAT 18
29#define SO_SNDLOWAT 19
30#define SO_RCVTIMEO 20
31#define SO_SNDTIMEO 21
32
33/* Security levels - as per NRL IPv6 - don't actually do anything */
34#define SO_SECURITY_AUTHENTICATION 22
35#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
36#define SO_SECURITY_ENCRYPTION_NETWORK 24
37
38#define SO_BINDTODEVICE 25
39
40/* Socket filtering */
41#define SO_ATTACH_FILTER 26
42#define SO_DETACH_FILTER 27
43
44#define SO_PEERNAME 28
45#define SO_TIMESTAMP 29
46#define SCM_TIMESTAMP SO_TIMESTAMP
47
48#define SO_ACCEPTCONN 30
49
50#define SO_PEERSEC 31
51#define SO_PASSSEC 34
52
53#endif /* __ASM_AVR32_SOCKET_H */
diff --git a/include/asm-avr32/sockios.h b/include/asm-avr32/sockios.h
new file mode 100644
index 000000000000..84f3d65b3b3b
--- /dev/null
+++ b/include/asm-avr32/sockios.h
@@ -0,0 +1,12 @@
1#ifndef __ASM_AVR32_SOCKIOS_H
2#define __ASM_AVR32_SOCKIOS_H
3
4/* Socket-level I/O control calls. */
5#define FIOSETOWN 0x8901
6#define SIOCSPGRP 0x8902
7#define FIOGETOWN 0x8903
8#define SIOCGPGRP 0x8904
9#define SIOCATMARK 0x8905
10#define SIOCGSTAMP 0x8906 /* Get stamp */
11
12#endif /* __ASM_AVR32_SOCKIOS_H */
diff --git a/include/asm-avr32/stat.h b/include/asm-avr32/stat.h
new file mode 100644
index 000000000000..e72881e10230
--- /dev/null
+++ b/include/asm-avr32/stat.h
@@ -0,0 +1,79 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_STAT_H
9#define __ASM_AVR32_STAT_H
10
11struct __old_kernel_stat {
12 unsigned short st_dev;
13 unsigned short st_ino;
14 unsigned short st_mode;
15 unsigned short st_nlink;
16 unsigned short st_uid;
17 unsigned short st_gid;
18 unsigned short st_rdev;
19 unsigned long st_size;
20 unsigned long st_atime;
21 unsigned long st_mtime;
22 unsigned long st_ctime;
23};
24
25struct stat {
26 unsigned long st_dev;
27 unsigned long st_ino;
28 unsigned short st_mode;
29 unsigned short st_nlink;
30 unsigned short st_uid;
31 unsigned short st_gid;
32 unsigned long st_rdev;
33 unsigned long st_size;
34 unsigned long st_blksize;
35 unsigned long st_blocks;
36 unsigned long st_atime;
37 unsigned long st_atime_nsec;
38 unsigned long st_mtime;
39 unsigned long st_mtime_nsec;
40 unsigned long st_ctime;
41 unsigned long st_ctime_nsec;
42 unsigned long __unused4;
43 unsigned long __unused5;
44};
45
46#define STAT_HAVE_NSEC 1
47
48struct stat64 {
49 unsigned long long st_dev;
50
51 unsigned long long st_ino;
52 unsigned int st_mode;
53 unsigned int st_nlink;
54
55 unsigned long st_uid;
56 unsigned long st_gid;
57
58 unsigned long long st_rdev;
59
60 long long st_size;
61 unsigned long __pad1; /* align 64-bit st_blocks */
62 unsigned long st_blksize;
63
64 unsigned long long st_blocks; /* Number 512-byte blocks allocated. */
65
66 unsigned long st_atime;
67 unsigned long st_atime_nsec;
68
69 unsigned long st_mtime;
70 unsigned long st_mtime_nsec;
71
72 unsigned long st_ctime;
73 unsigned long st_ctime_nsec;
74
75 unsigned long __unused1;
76 unsigned long __unused2;
77};
78
79#endif /* __ASM_AVR32_STAT_H */
diff --git a/include/asm-avr32/statfs.h b/include/asm-avr32/statfs.h
new file mode 100644
index 000000000000..2961bd18c50e
--- /dev/null
+++ b/include/asm-avr32/statfs.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_STATFS_H
2#define __ASM_AVR32_STATFS_H
3
4#include <asm-generic/statfs.h>
5
6#endif /* __ASM_AVR32_STATFS_H */
diff --git a/include/asm-avr32/string.h b/include/asm-avr32/string.h
new file mode 100644
index 000000000000..c91a623cd585
--- /dev/null
+++ b/include/asm-avr32/string.h
@@ -0,0 +1,17 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_STRING_H
9#define __ASM_AVR32_STRING_H
10
11#define __HAVE_ARCH_MEMSET
12extern void *memset(void *b, int c, size_t len);
13
14#define __HAVE_ARCH_MEMCPY
15extern void *memcpy(void *to, const void *from, size_t len);
16
17#endif /* __ASM_AVR32_STRING_H */
diff --git a/include/asm-avr32/sysreg.h b/include/asm-avr32/sysreg.h
new file mode 100644
index 000000000000..f91975f330f6
--- /dev/null
+++ b/include/asm-avr32/sysreg.h
@@ -0,0 +1,332 @@
1/*
2 * AVR32 System Registers
3 *
4 * Copyright (C) 2004-2006 Atmel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#ifndef __ASM_AVR32_SYSREG_H__
11#define __ASM_AVR32_SYSREG_H__
12
13/* sysreg register offsets */
14#define SYSREG_SR 0x0000
15#define SYSREG_EVBA 0x0004
16#define SYSREG_ACBA 0x0008
17#define SYSREG_CPUCR 0x000c
18#define SYSREG_ECR 0x0010
19#define SYSREG_RSR_SUP 0x0014
20#define SYSREG_RSR_INT0 0x0018
21#define SYSREG_RSR_INT1 0x001c
22#define SYSREG_RSR_INT2 0x0020
23#define SYSREG_RSR_INT3 0x0024
24#define SYSREG_RSR_EX 0x0028
25#define SYSREG_RSR_NMI 0x002c
26#define SYSREG_RSR_DBG 0x0030
27#define SYSREG_RAR_SUP 0x0034
28#define SYSREG_RAR_INT0 0x0038
29#define SYSREG_RAR_INT1 0x003c
30#define SYSREG_RAR_INT2 0x0040
31#define SYSREG_RAR_INT3 0x0044
32#define SYSREG_RAR_EX 0x0048
33#define SYSREG_RAR_NMI 0x004c
34#define SYSREG_RAR_DBG 0x0050
35#define SYSREG_JECR 0x0054
36#define SYSREG_JOSP 0x0058
37#define SYSREG_JAVA_LV0 0x005c
38#define SYSREG_JAVA_LV1 0x0060
39#define SYSREG_JAVA_LV2 0x0064
40#define SYSREG_JAVA_LV3 0x0068
41#define SYSREG_JAVA_LV4 0x006c
42#define SYSREG_JAVA_LV5 0x0070
43#define SYSREG_JAVA_LV6 0x0074
44#define SYSREG_JAVA_LV7 0x0078
45#define SYSREG_JTBA 0x007c
46#define SYSREG_JBCR 0x0080
47#define SYSREG_CONFIG0 0x0100
48#define SYSREG_CONFIG1 0x0104
49#define SYSREG_COUNT 0x0108
50#define SYSREG_COMPARE 0x010c
51#define SYSREG_TLBEHI 0x0110
52#define SYSREG_TLBELO 0x0114
53#define SYSREG_PTBR 0x0118
54#define SYSREG_TLBEAR 0x011c
55#define SYSREG_MMUCR 0x0120
56#define SYSREG_TLBARLO 0x0124
57#define SYSREG_TLBARHI 0x0128
58#define SYSREG_PCCNT 0x012c
59#define SYSREG_PCNT0 0x0130
60#define SYSREG_PCNT1 0x0134
61#define SYSREG_PCCR 0x0138
62#define SYSREG_BEAR 0x013c
63
64/* Bitfields in SR */
65#define SYSREG_SR_C_OFFSET 0
66#define SYSREG_SR_C_SIZE 1
67#define SYSREG_Z_OFFSET 1
68#define SYSREG_Z_SIZE 1
69#define SYSREG_SR_N_OFFSET 2
70#define SYSREG_SR_N_SIZE 1
71#define SYSREG_SR_V_OFFSET 3
72#define SYSREG_SR_V_SIZE 1
73#define SYSREG_Q_OFFSET 4
74#define SYSREG_Q_SIZE 1
75#define SYSREG_GM_OFFSET 16
76#define SYSREG_GM_SIZE 1
77#define SYSREG_I0M_OFFSET 17
78#define SYSREG_I0M_SIZE 1
79#define SYSREG_I1M_OFFSET 18
80#define SYSREG_I1M_SIZE 1
81#define SYSREG_I2M_OFFSET 19
82#define SYSREG_I2M_SIZE 1
83#define SYSREG_I3M_OFFSET 20
84#define SYSREG_I3M_SIZE 1
85#define SYSREG_EM_OFFSET 21
86#define SYSREG_EM_SIZE 1
87#define SYSREG_M0_OFFSET 22
88#define SYSREG_M0_SIZE 1
89#define SYSREG_M1_OFFSET 23
90#define SYSREG_M1_SIZE 1
91#define SYSREG_M2_OFFSET 24
92#define SYSREG_M2_SIZE 1
93#define SYSREG_SR_D_OFFSET 26
94#define SYSREG_SR_D_SIZE 1
95#define SYSREG_DM_OFFSET 27
96#define SYSREG_DM_SIZE 1
97#define SYSREG_SR_J_OFFSET 28
98#define SYSREG_SR_J_SIZE 1
99#define SYSREG_R_OFFSET 29
100#define SYSREG_R_SIZE 1
101#define SYSREG_H_OFFSET 30
102#define SYSREG_H_SIZE 1
103
104/* Bitfields in EVBA */
105
106/* Bitfields in ACBA */
107
108/* Bitfields in CPUCR */
109#define SYSREG_BI_OFFSET 0
110#define SYSREG_BI_SIZE 1
111#define SYSREG_BE_OFFSET 1
112#define SYSREG_BE_SIZE 1
113#define SYSREG_FE_OFFSET 2
114#define SYSREG_FE_SIZE 1
115#define SYSREG_RE_OFFSET 3
116#define SYSREG_RE_SIZE 1
117#define SYSREG_IBE_OFFSET 4
118#define SYSREG_IBE_SIZE 1
119#define SYSREG_IEE_OFFSET 5
120#define SYSREG_IEE_SIZE 1
121
122/* Bitfields in ECR */
123#define SYSREG_ECR_OFFSET 0
124#define SYSREG_ECR_SIZE 32
125
126/* Bitfields in RSR_SUP */
127
128/* Bitfields in RSR_INT0 */
129
130/* Bitfields in RSR_INT1 */
131
132/* Bitfields in RSR_INT2 */
133
134/* Bitfields in RSR_INT3 */
135
136/* Bitfields in RSR_EX */
137
138/* Bitfields in RSR_NMI */
139
140/* Bitfields in RSR_DBG */
141
142/* Bitfields in RAR_SUP */
143
144/* Bitfields in RAR_INT0 */
145
146/* Bitfields in RAR_INT1 */
147
148/* Bitfields in RAR_INT2 */
149
150/* Bitfields in RAR_INT3 */
151
152/* Bitfields in RAR_EX */
153
154/* Bitfields in RAR_NMI */
155
156/* Bitfields in RAR_DBG */
157
158/* Bitfields in JECR */
159
160/* Bitfields in JOSP */
161
162/* Bitfields in JAVA_LV0 */
163
164/* Bitfields in JAVA_LV1 */
165
166/* Bitfields in JAVA_LV2 */
167
168/* Bitfields in JAVA_LV3 */
169
170/* Bitfields in JAVA_LV4 */
171
172/* Bitfields in JAVA_LV5 */
173
174/* Bitfields in JAVA_LV6 */
175
176/* Bitfields in JAVA_LV7 */
177
178/* Bitfields in JTBA */
179
180/* Bitfields in JBCR */
181
182/* Bitfields in CONFIG0 */
183#define SYSREG_CONFIG0_D_OFFSET 1
184#define SYSREG_CONFIG0_D_SIZE 1
185#define SYSREG_CONFIG0_S_OFFSET 2
186#define SYSREG_CONFIG0_S_SIZE 1
187#define SYSREG_O_OFFSET 3
188#define SYSREG_O_SIZE 1
189#define SYSREG_P_OFFSET 4
190#define SYSREG_P_SIZE 1
191#define SYSREG_CONFIG0_J_OFFSET 5
192#define SYSREG_CONFIG0_J_SIZE 1
193#define SYSREG_F_OFFSET 6
194#define SYSREG_F_SIZE 1
195#define SYSREG_MMUT_OFFSET 7
196#define SYSREG_MMUT_SIZE 3
197#define SYSREG_AR_OFFSET 10
198#define SYSREG_AR_SIZE 3
199#define SYSREG_AT_OFFSET 13
200#define SYSREG_AT_SIZE 3
201#define SYSREG_PROCESSORREVISION_OFFSET 16
202#define SYSREG_PROCESSORREVISION_SIZE 8
203#define SYSREG_PROCESSORID_OFFSET 24
204#define SYSREG_PROCESSORID_SIZE 8
205
206/* Bitfields in CONFIG1 */
207#define SYSREG_DASS_OFFSET 0
208#define SYSREG_DASS_SIZE 3
209#define SYSREG_DLSZ_OFFSET 3
210#define SYSREG_DLSZ_SIZE 3
211#define SYSREG_DSET_OFFSET 6
212#define SYSREG_DSET_SIZE 4
213#define SYSREG_IASS_OFFSET 10
214#define SYSREG_IASS_SIZE 2
215#define SYSREG_ILSZ_OFFSET 13
216#define SYSREG_ILSZ_SIZE 3
217#define SYSREG_ISET_OFFSET 16
218#define SYSREG_ISET_SIZE 4
219#define SYSREG_DMMUSZ_OFFSET 20
220#define SYSREG_DMMUSZ_SIZE 6
221#define SYSREG_IMMUSZ_OFFSET 26
222#define SYSREG_IMMUSZ_SIZE 6
223
224/* Bitfields in COUNT */
225
226/* Bitfields in COMPARE */
227
228/* Bitfields in TLBEHI */
229#define SYSREG_ASID_OFFSET 0
230#define SYSREG_ASID_SIZE 8
231#define SYSREG_TLBEHI_I_OFFSET 8
232#define SYSREG_TLBEHI_I_SIZE 1
233#define SYSREG_TLBEHI_V_OFFSET 9
234#define SYSREG_TLBEHI_V_SIZE 1
235#define SYSREG_VPN_OFFSET 10
236#define SYSREG_VPN_SIZE 22
237
238/* Bitfields in TLBELO */
239#define SYSREG_W_OFFSET 0
240#define SYSREG_W_SIZE 1
241#define SYSREG_TLBELO_D_OFFSET 1
242#define SYSREG_TLBELO_D_SIZE 1
243#define SYSREG_SZ_OFFSET 2
244#define SYSREG_SZ_SIZE 2
245#define SYSREG_AP_OFFSET 4
246#define SYSREG_AP_SIZE 3
247#define SYSREG_B_OFFSET 7
248#define SYSREG_B_SIZE 1
249#define SYSREG_G_OFFSET 8
250#define SYSREG_G_SIZE 1
251#define SYSREG_TLBELO_C_OFFSET 9
252#define SYSREG_TLBELO_C_SIZE 1
253#define SYSREG_PFN_OFFSET 10
254#define SYSREG_PFN_SIZE 22
255
256/* Bitfields in PTBR */
257
258/* Bitfields in TLBEAR */
259
260/* Bitfields in MMUCR */
261#define SYSREG_E_OFFSET 0
262#define SYSREG_E_SIZE 1
263#define SYSREG_M_OFFSET 1
264#define SYSREG_M_SIZE 1
265#define SYSREG_MMUCR_I_OFFSET 2
266#define SYSREG_MMUCR_I_SIZE 1
267#define SYSREG_MMUCR_N_OFFSET 3
268#define SYSREG_MMUCR_N_SIZE 1
269#define SYSREG_MMUCR_S_OFFSET 4
270#define SYSREG_MMUCR_S_SIZE 1
271#define SYSREG_DLA_OFFSET 8
272#define SYSREG_DLA_SIZE 6
273#define SYSREG_DRP_OFFSET 14
274#define SYSREG_DRP_SIZE 6
275#define SYSREG_ILA_OFFSET 20
276#define SYSREG_ILA_SIZE 6
277#define SYSREG_IRP_OFFSET 26
278#define SYSREG_IRP_SIZE 6
279
280/* Bitfields in TLBARLO */
281
282/* Bitfields in TLBARHI */
283
284/* Bitfields in PCCNT */
285
286/* Bitfields in PCNT0 */
287
288/* Bitfields in PCNT1 */
289
290/* Bitfields in PCCR */
291
292/* Bitfields in BEAR */
293
294/* Constants for ECR */
295#define ECR_UNRECOVERABLE 0
296#define ECR_TLB_MULTIPLE 1
297#define ECR_BUS_ERROR_WRITE 2
298#define ECR_BUS_ERROR_READ 3
299#define ECR_NMI 4
300#define ECR_ADDR_ALIGN_X 5
301#define ECR_PROTECTION_X 6
302#define ECR_DEBUG 7
303#define ECR_ILLEGAL_OPCODE 8
304#define ECR_UNIMPL_INSTRUCTION 9
305#define ECR_PRIVILEGE_VIOLATION 10
306#define ECR_FPE 11
307#define ECR_COPROC_ABSENT 12
308#define ECR_ADDR_ALIGN_R 13
309#define ECR_ADDR_ALIGN_W 14
310#define ECR_PROTECTION_R 15
311#define ECR_PROTECTION_W 16
312#define ECR_DTLB_MODIFIED 17
313#define ECR_TLB_MISS_X 20
314#define ECR_TLB_MISS_R 24
315#define ECR_TLB_MISS_W 28
316
317/* Bit manipulation macros */
318#define SYSREG_BIT(name) (1 << SYSREG_##name##_OFFSET)
319#define SYSREG_BF(name,value) (((value) & ((1 << SYSREG_##name##_SIZE) - 1)) << SYSREG_##name##_OFFSET)
320#define SYSREG_BFEXT(name,value) (((value) >> SYSREG_##name##_OFFSET) & ((1 << SYSREG_##name##_SIZE) - 1))
321#define SYSREG_BFINS(name,value,old) (((old) & ~(((1 << SYSREG_##name##_SIZE) - 1) << SYSREG_##name##_OFFSET)) | SYSREG_BF(name,value))
322
323#ifdef __CHECKER__
324extern unsigned long __builtin_mfsr(unsigned long reg);
325extern void __builtin_mtsr(unsigned long reg, unsigned long value);
326#endif
327
328/* Register access macros */
329#define sysreg_read(reg) __builtin_mfsr(SYSREG_##reg)
330#define sysreg_write(reg, value) __builtin_mtsr(SYSREG_##reg, value)
331
332#endif /* __ASM_AVR32_SYSREG_H__ */
diff --git a/include/asm-avr32/system.h b/include/asm-avr32/system.h
new file mode 100644
index 000000000000..ac596058697d
--- /dev/null
+++ b/include/asm-avr32/system.h
@@ -0,0 +1,155 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_SYSTEM_H
9#define __ASM_AVR32_SYSTEM_H
10
11#include <linux/compiler.h>
12#include <linux/types.h>
13
14#include <asm/ptrace.h>
15#include <asm/sysreg.h>
16
17#define xchg(ptr,x) \
18 ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
19
20#define nop() asm volatile("nop")
21
22#define mb() asm volatile("" : : : "memory")
23#define rmb() mb()
24#define wmb() asm volatile("sync 0" : : : "memory")
25#define read_barrier_depends() do { } while(0)
26#define set_mb(var, value) do { var = value; mb(); } while(0)
27
28/*
29 * Help PathFinder and other Nexus-compliant debuggers keep track of
30 * the current PID by emitting an Ownership Trace Message each time we
31 * switch task.
32 */
33#ifdef CONFIG_OWNERSHIP_TRACE
34#include <asm/ocd.h>
35#define finish_arch_switch(prev) \
36 do { \
37 __mtdr(DBGREG_PID, prev->pid); \
38 __mtdr(DBGREG_PID, current->pid); \
39 } while(0)
40#endif
41
42/*
43 * switch_to(prev, next, last) should switch from task `prev' to task
44 * `next'. `prev' will never be the same as `next'.
45 *
46 * We just delegate everything to the __switch_to assembly function,
47 * which is implemented in arch/avr32/kernel/switch_to.S
48 *
49 * mb() tells GCC not to cache `current' across this call.
50 */
51struct cpu_context;
52struct task_struct;
53extern struct task_struct *__switch_to(struct task_struct *,
54 struct cpu_context *,
55 struct cpu_context *);
56#define switch_to(prev, next, last) \
57 do { \
58 last = __switch_to(prev, &prev->thread.cpu_context + 1, \
59 &next->thread.cpu_context); \
60 } while (0)
61
62#ifdef CONFIG_SMP
63# error "The AVR32 port does not support SMP"
64#else
65# define smp_mb() barrier()
66# define smp_rmb() barrier()
67# define smp_wmb() barrier()
68# define smp_read_barrier_depends() do { } while(0)
69#endif
70
71#include <linux/irqflags.h>
72
73extern void __xchg_called_with_bad_pointer(void);
74
75#ifdef __CHECKER__
76extern unsigned long __builtin_xchg(void *ptr, unsigned long x);
77#endif
78
79#define xchg_u32(val, m) __builtin_xchg((void *)m, val)
80
81static inline unsigned long __xchg(unsigned long x,
82 volatile void *ptr,
83 int size)
84{
85 switch(size) {
86 case 4:
87 return xchg_u32(x, ptr);
88 default:
89 __xchg_called_with_bad_pointer();
90 return x;
91 }
92}
93
94static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old,
95 unsigned long new)
96{
97 __u32 ret;
98
99 asm volatile(
100 "1: ssrf 5\n"
101 " ld.w %[ret], %[m]\n"
102 " cp.w %[ret], %[old]\n"
103 " brne 2f\n"
104 " stcond %[m], %[new]\n"
105 " brne 1b\n"
106 "2:\n"
107 : [ret] "=&r"(ret), [m] "=m"(*m)
108 : "m"(m), [old] "ir"(old), [new] "r"(new)
109 : "memory", "cc");
110 return ret;
111}
112
113extern unsigned long __cmpxchg_u64_unsupported_on_32bit_kernels(
114 volatile int * m, unsigned long old, unsigned long new);
115#define __cmpxchg_u64 __cmpxchg_u64_unsupported_on_32bit_kernels
116
117/* This function doesn't exist, so you'll get a linker error
118 if something tries to do an invalid cmpxchg(). */
119extern void __cmpxchg_called_with_bad_pointer(void);
120
121#define __HAVE_ARCH_CMPXCHG 1
122
123static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
124 unsigned long new, int size)
125{
126 switch (size) {
127 case 4:
128 return __cmpxchg_u32(ptr, old, new);
129 case 8:
130 return __cmpxchg_u64(ptr, old, new);
131 }
132
133 __cmpxchg_called_with_bad_pointer();
134 return old;
135}
136
137#define cmpxchg(ptr, old, new) \
138 ((typeof(*(ptr)))__cmpxchg((ptr), (unsigned long)(old), \
139 (unsigned long)(new), \
140 sizeof(*(ptr))))
141
142struct pt_regs;
143extern void __die(const char *, struct pt_regs *, unsigned long,
144 const char *, const char *, unsigned long);
145extern void __die_if_kernel(const char *, struct pt_regs *, unsigned long,
146 const char *, const char *, unsigned long);
147
148#define die(msg, regs, err) \
149 __die(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__)
150#define die_if_kernel(msg, regs, err) \
151 __die_if_kernel(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__)
152
153#define arch_align_stack(x) (x)
154
155#endif /* __ASM_AVR32_SYSTEM_H */
diff --git a/include/asm-avr32/termbits.h b/include/asm-avr32/termbits.h
new file mode 100644
index 000000000000..9dc6eacafa33
--- /dev/null
+++ b/include/asm-avr32/termbits.h
@@ -0,0 +1,173 @@
1#ifndef __ASM_AVR32_TERMBITS_H
2#define __ASM_AVR32_TERMBITS_H
3
4#include <linux/posix_types.h>
5
6typedef unsigned char cc_t;
7typedef unsigned int speed_t;
8typedef unsigned int tcflag_t;
9
10#define NCCS 19
11struct termios {
12 tcflag_t c_iflag; /* input mode flags */
13 tcflag_t c_oflag; /* output mode flags */
14 tcflag_t c_cflag; /* control mode flags */
15 tcflag_t c_lflag; /* local mode flags */
16 cc_t c_line; /* line discipline */
17 cc_t c_cc[NCCS]; /* control characters */
18};
19
20/* c_cc characters */
21#define VINTR 0
22#define VQUIT 1
23#define VERASE 2
24#define VKILL 3
25#define VEOF 4
26#define VTIME 5
27#define VMIN 6
28#define VSWTC 7
29#define VSTART 8
30#define VSTOP 9
31#define VSUSP 10
32#define VEOL 11
33#define VREPRINT 12
34#define VDISCARD 13
35#define VWERASE 14
36#define VLNEXT 15
37#define VEOL2 16
38
39/* c_iflag bits */
40#define IGNBRK 0000001
41#define BRKINT 0000002
42#define IGNPAR 0000004
43#define PARMRK 0000010
44#define INPCK 0000020
45#define ISTRIP 0000040
46#define INLCR 0000100
47#define IGNCR 0000200
48#define ICRNL 0000400
49#define IUCLC 0001000
50#define IXON 0002000
51#define IXANY 0004000
52#define IXOFF 0010000
53#define IMAXBEL 0020000
54#define IUTF8 0040000
55
56/* c_oflag bits */
57#define OPOST 0000001
58#define OLCUC 0000002
59#define ONLCR 0000004
60#define OCRNL 0000010
61#define ONOCR 0000020
62#define ONLRET 0000040
63#define OFILL 0000100
64#define OFDEL 0000200
65#define NLDLY 0000400
66#define NL0 0000000
67#define NL1 0000400
68#define CRDLY 0003000
69#define CR0 0000000
70#define CR1 0001000
71#define CR2 0002000
72#define CR3 0003000
73#define TABDLY 0014000
74#define TAB0 0000000
75#define TAB1 0004000
76#define TAB2 0010000
77#define TAB3 0014000
78#define XTABS 0014000
79#define BSDLY 0020000
80#define BS0 0000000
81#define BS1 0020000
82#define VTDLY 0040000
83#define VT0 0000000
84#define VT1 0040000
85#define FFDLY 0100000
86#define FF0 0000000
87#define FF1 0100000
88
89/* c_cflag bit meaning */
90#define CBAUD 0010017
91#define B0 0000000 /* hang up */
92#define B50 0000001
93#define B75 0000002
94#define B110 0000003
95#define B134 0000004
96#define B150 0000005
97#define B200 0000006
98#define B300 0000007
99#define B600 0000010
100#define B1200 0000011
101#define B1800 0000012
102#define B2400 0000013
103#define B4800 0000014
104#define B9600 0000015
105#define B19200 0000016
106#define B38400 0000017
107#define EXTA B19200
108#define EXTB B38400
109#define CSIZE 0000060
110#define CS5 0000000
111#define CS6 0000020
112#define CS7 0000040
113#define CS8 0000060
114#define CSTOPB 0000100
115#define CREAD 0000200
116#define PARENB 0000400
117#define PARODD 0001000
118#define HUPCL 0002000
119#define CLOCAL 0004000
120#define CBAUDEX 0010000
121#define B57600 0010001
122#define B115200 0010002
123#define B230400 0010003
124#define B460800 0010004
125#define B500000 0010005
126#define B576000 0010006
127#define B921600 0010007
128#define B1000000 0010010
129#define B1152000 0010011
130#define B1500000 0010012
131#define B2000000 0010013
132#define B2500000 0010014
133#define B3000000 0010015
134#define B3500000 0010016
135#define B4000000 0010017
136#define CIBAUD 002003600000 /* input baud rate (not used) */
137#define CMSPAR 010000000000 /* mark or space (stick) parity */
138#define CRTSCTS 020000000000 /* flow control */
139
140/* c_lflag bits */
141#define ISIG 0000001
142#define ICANON 0000002
143#define XCASE 0000004
144#define ECHO 0000010
145#define ECHOE 0000020
146#define ECHOK 0000040
147#define ECHONL 0000100
148#define NOFLSH 0000200
149#define TOSTOP 0000400
150#define ECHOCTL 0001000
151#define ECHOPRT 0002000
152#define ECHOKE 0004000
153#define FLUSHO 0010000
154#define PENDIN 0040000
155#define IEXTEN 0100000
156
157/* tcflow() and TCXONC use these */
158#define TCOOFF 0
159#define TCOON 1
160#define TCIOFF 2
161#define TCION 3
162
163/* tcflush() and TCFLSH use these */
164#define TCIFLUSH 0
165#define TCOFLUSH 1
166#define TCIOFLUSH 2
167
168/* tcsetattr uses these */
169#define TCSANOW 0
170#define TCSADRAIN 1
171#define TCSAFLUSH 2
172
173#endif /* __ASM_AVR32_TERMBITS_H */
diff --git a/include/asm-avr32/termios.h b/include/asm-avr32/termios.h
new file mode 100644
index 000000000000..615bc0639e5c
--- /dev/null
+++ b/include/asm-avr32/termios.h
@@ -0,0 +1,80 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_TERMIOS_H
9#define __ASM_AVR32_TERMIOS_H
10
11#include <asm/termbits.h>
12#include <asm/ioctls.h>
13
14struct winsize {
15 unsigned short ws_row;
16 unsigned short ws_col;
17 unsigned short ws_xpixel;
18 unsigned short ws_ypixel;
19};
20
21#define NCC 8
22struct termio {
23 unsigned short c_iflag; /* input mode flags */
24 unsigned short c_oflag; /* output mode flags */
25 unsigned short c_cflag; /* control mode flags */
26 unsigned short c_lflag; /* local mode flags */
27 unsigned char c_line; /* line discipline */
28 unsigned char c_cc[NCC]; /* control characters */
29};
30
31/* modem lines */
32#define TIOCM_LE 0x001
33#define TIOCM_DTR 0x002
34#define TIOCM_RTS 0x004
35#define TIOCM_ST 0x008
36#define TIOCM_SR 0x010
37#define TIOCM_CTS 0x020
38#define TIOCM_CAR 0x040
39#define TIOCM_RNG 0x080
40#define TIOCM_DSR 0x100
41#define TIOCM_CD TIOCM_CAR
42#define TIOCM_RI TIOCM_RNG
43#define TIOCM_OUT1 0x2000
44#define TIOCM_OUT2 0x4000
45#define TIOCM_LOOP 0x8000
46
47/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
48
49/* line disciplines */
50#define N_TTY 0
51#define N_SLIP 1
52#define N_MOUSE 2
53#define N_PPP 3
54#define N_STRIP 4
55#define N_AX25 5
56#define N_X25 6 /* X.25 async */
57#define N_6PACK 7
58#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */
59#define N_R3964 9 /* Reserved for Simatic R3964 module */
60#define N_PROFIBUS_FDL 10 /* Reserved for Profibus <Dave@mvhi.com> */
61#define N_IRDA 11 /* Linux IR - http://irda.sourceforge.net/ */
62#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data cards about SMS messages */
63#define N_HDLC 13 /* synchronous HDLC */
64#define N_SYNC_PPP 14 /* synchronous PPP */
65#define N_HCI 15 /* Bluetooth HCI UART */
66
67#ifdef __KERNEL__
68/* intr=^C quit=^\ erase=del kill=^U
69 eof=^D vtime=\0 vmin=\1 sxtc=\0
70 start=^Q stop=^S susp=^Z eol=\0
71 reprint=^R discard=^U werase=^W lnext=^V
72 eol2=\0
73*/
74#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
75
76#include <asm-generic/termios.h>
77
78#endif /* __KERNEL__ */
79
80#endif /* __ASM_AVR32_TERMIOS_H */
diff --git a/include/asm-avr32/thread_info.h b/include/asm-avr32/thread_info.h
new file mode 100644
index 000000000000..d1f5b35ebd54
--- /dev/null
+++ b/include/asm-avr32/thread_info.h
@@ -0,0 +1,106 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_THREAD_INFO_H
9#define __ASM_AVR32_THREAD_INFO_H
10
11#include <asm/page.h>
12
13#define THREAD_SIZE_ORDER 1
14#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
15
16#ifndef __ASSEMBLY__
17#include <asm/types.h>
18
19struct task_struct;
20struct exec_domain;
21
22struct thread_info {
23 struct task_struct *task; /* main task structure */
24 struct exec_domain *exec_domain; /* execution domain */
25 unsigned long flags; /* low level flags */
26 __u32 cpu;
27 __s32 preempt_count; /* 0 => preemptable, <0 => BUG */
28 struct restart_block restart_block;
29 __u8 supervisor_stack[0];
30};
31
32#define INIT_THREAD_INFO(tsk) \
33{ \
34 .task = &tsk, \
35 .exec_domain = &default_exec_domain, \
36 .flags = 0, \
37 .cpu = 0, \
38 .preempt_count = 1, \
39 .restart_block = { \
40 .fn = do_no_restart_syscall \
41 } \
42}
43
44#define init_thread_info (init_thread_union.thread_info)
45#define init_stack (init_thread_union.stack)
46
47/*
48 * Get the thread information struct from C.
49 * We do the usual trick and use the lower end of the stack for this
50 */
51static inline struct thread_info *current_thread_info(void)
52{
53 unsigned long addr = ~(THREAD_SIZE - 1);
54
55 asm("and %0, sp" : "=r"(addr) : "0"(addr));
56 return (struct thread_info *)addr;
57}
58
59/* thread information allocation */
60#define alloc_thread_info(ti) \
61 ((struct thread_info *) __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER))
62#define free_thread_info(ti) free_pages((unsigned long)(ti), 1)
63#define get_thread_info(ti) get_task_struct((ti)->task)
64#define put_thread_info(ti) put_task_struct((ti)->task)
65
66#endif /* !__ASSEMBLY__ */
67
68#define PREEMPT_ACTIVE 0x40000000
69
70/*
71 * Thread information flags
72 * - these are process state flags that various assembly files may need to access
73 * - pending work-to-be-done flags are in LSW
74 * - other flags in MSW
75 */
76#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
77#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
78#define TIF_SIGPENDING 2 /* signal pending */
79#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
80#define TIF_POLLING_NRFLAG 4 /* true if poll_idle() is polling
81 TIF_NEED_RESCHED */
82#define TIF_BREAKPOINT 5 /* true if we should break after return */
83#define TIF_SINGLE_STEP 6 /* single step after next break */
84#define TIF_MEMDIE 7
85#define TIF_RESTORE_SIGMASK 8 /* restore signal mask in do_signal */
86#define TIF_USERSPACE 31 /* true if FS sets userspace */
87
88#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
89#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
90#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
91#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
92#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
93#define _TIF_BREAKPOINT (1 << TIF_BREAKPOINT)
94#define _TIF_SINGLE_STEP (1 << TIF_SINGLE_STEP)
95#define _TIF_MEMDIE (1 << TIF_MEMDIE)
96#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
97
98/* XXX: These two masks must never span more than 16 bits! */
99/* work to do on interrupt/exception return */
100#define _TIF_WORK_MASK 0x0000013e
101/* work to do on any return to userspace */
102#define _TIF_ALLWORK_MASK 0x0000013f
103/* work to do on return from debug mode */
104#define _TIF_DBGWORK_MASK 0x0000017e
105
106#endif /* __ASM_AVR32_THREAD_INFO_H */
diff --git a/include/asm-avr32/timex.h b/include/asm-avr32/timex.h
new file mode 100644
index 000000000000..5e44ecb3ce0c
--- /dev/null
+++ b/include/asm-avr32/timex.h
@@ -0,0 +1,40 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_TIMEX_H
9#define __ASM_AVR32_TIMEX_H
10
11/*
12 * This is the frequency of the timer used for Linux's timer interrupt.
13 * The value should be defined as accurate as possible or under certain
14 * circumstances Linux timekeeping might become inaccurate or fail.
15 *
16 * For many system the exact clockrate of the timer isn't known but due to
17 * the way this value is used we can get away with a wrong value as long
18 * as this value is:
19 *
20 * - a multiple of HZ
21 * - a divisor of the actual rate
22 *
23 * 500000 is a good such cheat value.
24 *
25 * The obscure number 1193182 is the same as used by the original i8254
26 * time in legacy PC hardware; the chip is never found in AVR32 systems.
27 */
28#define CLOCK_TICK_RATE 500000 /* Underlying HZ */
29
30typedef unsigned long cycles_t;
31
32static inline cycles_t get_cycles (void)
33{
34 return 0;
35}
36
37extern int read_current_timer(unsigned long *timer_value);
38#define ARCH_HAS_READ_CURRENT_TIMER 1
39
40#endif /* __ASM_AVR32_TIMEX_H */
diff --git a/include/asm-avr32/tlb.h b/include/asm-avr32/tlb.h
new file mode 100644
index 000000000000..5c55f9ce7c7d
--- /dev/null
+++ b/include/asm-avr32/tlb.h
@@ -0,0 +1,32 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_TLB_H
9#define __ASM_AVR32_TLB_H
10
11#define tlb_start_vma(tlb, vma) \
12 flush_cache_range(vma, vma->vm_start, vma->vm_end)
13
14#define tlb_end_vma(tlb, vma) \
15 flush_tlb_range(vma, vma->vm_start, vma->vm_end)
16
17#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while(0)
18
19/*
20 * Flush whole TLB for MM
21 */
22#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
23
24#include <asm-generic/tlb.h>
25
26/*
27 * For debugging purposes
28 */
29extern void show_dtlb_entry(unsigned int index);
30extern void dump_dtlb(void);
31
32#endif /* __ASM_AVR32_TLB_H */
diff --git a/include/asm-avr32/tlbflush.h b/include/asm-avr32/tlbflush.h
new file mode 100644
index 000000000000..730e268f81f3
--- /dev/null
+++ b/include/asm-avr32/tlbflush.h
@@ -0,0 +1,40 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_TLBFLUSH_H
9#define __ASM_AVR32_TLBFLUSH_H
10
11#include <asm/mmu.h>
12
13/*
14 * TLB flushing:
15 *
16 * - flush_tlb() flushes the current mm struct TLBs
17 * - flush_tlb_all() flushes all processes' TLB entries
18 * - flush_tlb_mm(mm) flushes the specified mm context TLBs
19 * - flush_tlb_page(vma, vmaddr) flushes one page
20 * - flush_tlb_range(vma, start, end) flushes a range of pages
21 * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
22 * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
23 */
24extern void flush_tlb(void);
25extern void flush_tlb_all(void);
26extern void flush_tlb_mm(struct mm_struct *mm);
27extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
28 unsigned long end);
29extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
30extern void __flush_tlb_page(unsigned long asid, unsigned long page);
31
32static inline void flush_tlb_pgtables(struct mm_struct *mm,
33 unsigned long start, unsigned long end)
34{
35 /* Nothing to do */
36}
37
38extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
39
40#endif /* __ASM_AVR32_TLBFLUSH_H */
diff --git a/include/asm-avr32/topology.h b/include/asm-avr32/topology.h
new file mode 100644
index 000000000000..5b766cbb4806
--- /dev/null
+++ b/include/asm-avr32/topology.h
@@ -0,0 +1,6 @@
1#ifndef __ASM_AVR32_TOPOLOGY_H
2#define __ASM_AVR32_TOPOLOGY_H
3
4#include <asm-generic/topology.h>
5
6#endif /* __ASM_AVR32_TOPOLOGY_H */
diff --git a/include/asm-avr32/traps.h b/include/asm-avr32/traps.h
new file mode 100644
index 000000000000..6a8fb944f414
--- /dev/null
+++ b/include/asm-avr32/traps.h
@@ -0,0 +1,23 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_TRAPS_H
9#define __ASM_AVR32_TRAPS_H
10
11#include <linux/list.h>
12
13struct undef_hook {
14 struct list_head node;
15 u32 insn_mask;
16 u32 insn_val;
17 int (*fn)(struct pt_regs *regs, u32 insn);
18};
19
20void register_undef_hook(struct undef_hook *hook);
21void unregister_undef_hook(struct undef_hook *hook);
22
23#endif /* __ASM_AVR32_TRAPS_H */
diff --git a/include/asm-avr32/types.h b/include/asm-avr32/types.h
new file mode 100644
index 000000000000..3f47db9675af
--- /dev/null
+++ b/include/asm-avr32/types.h
@@ -0,0 +1,70 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_TYPES_H
9#define __ASM_AVR32_TYPES_H
10
11#ifndef __ASSEMBLY__
12
13typedef unsigned short umode_t;
14
15/*
16 * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
17 * header files exported to user space
18 */
19typedef __signed__ char __s8;
20typedef unsigned char __u8;
21
22typedef __signed__ short __s16;
23typedef unsigned short __u16;
24
25typedef __signed__ int __s32;
26typedef unsigned int __u32;
27
28#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
29typedef __signed__ long long __s64;
30typedef unsigned long long __u64;
31#endif
32
33#endif /* __ASSEMBLY__ */
34
35/*
36 * These aren't exported outside the kernel to avoid name space clashes
37 */
38#ifdef __KERNEL__
39
40#define BITS_PER_LONG 32
41
42#ifndef __ASSEMBLY__
43
44typedef signed char s8;
45typedef unsigned char u8;
46
47typedef signed short s16;
48typedef unsigned short u16;
49
50typedef signed int s32;
51typedef unsigned int u32;
52
53typedef signed long long s64;
54typedef unsigned long long u64;
55
56/* Dma addresses are 32-bits wide. */
57
58typedef u32 dma_addr_t;
59
60#ifdef CONFIG_LBD
61typedef u64 sector_t;
62#define HAVE_SECTOR_T
63#endif
64
65#endif /* __ASSEMBLY__ */
66
67#endif /* __KERNEL__ */
68
69
70#endif /* __ASM_AVR32_TYPES_H */
diff --git a/include/asm-avr32/uaccess.h b/include/asm-avr32/uaccess.h
new file mode 100644
index 000000000000..821deb5a9d28
--- /dev/null
+++ b/include/asm-avr32/uaccess.h
@@ -0,0 +1,335 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_UACCESS_H
9#define __ASM_AVR32_UACCESS_H
10
11#include <linux/errno.h>
12#include <linux/sched.h>
13
14#define VERIFY_READ 0
15#define VERIFY_WRITE 1
16
17typedef struct {
18 unsigned int is_user_space;
19} mm_segment_t;
20
21/*
22 * The fs value determines whether argument validity checking should be
23 * performed or not. If get_fs() == USER_DS, checking is performed, with
24 * get_fs() == KERNEL_DS, checking is bypassed.
25 *
26 * For historical reasons (Data Segment Register?), these macros are misnamed.
27 */
28#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
29#define segment_eq(a,b) ((a).is_user_space == (b).is_user_space)
30
31#define USER_ADDR_LIMIT 0x80000000
32
33#define KERNEL_DS MAKE_MM_SEG(0)
34#define USER_DS MAKE_MM_SEG(1)
35
36#define get_ds() (KERNEL_DS)
37
38static inline mm_segment_t get_fs(void)
39{
40 return MAKE_MM_SEG(test_thread_flag(TIF_USERSPACE));
41}
42
43static inline void set_fs(mm_segment_t s)
44{
45 if (s.is_user_space)
46 set_thread_flag(TIF_USERSPACE);
47 else
48 clear_thread_flag(TIF_USERSPACE);
49}
50
51/*
52 * Test whether a block of memory is a valid user space address.
53 * Returns 0 if the range is valid, nonzero otherwise.
54 *
55 * We do the following checks:
56 * 1. Is the access from kernel space?
57 * 2. Does (addr + size) set the carry bit?
58 * 3. Is (addr + size) a negative number (i.e. >= 0x80000000)?
59 *
60 * If yes on the first check, access is granted.
61 * If no on any of the others, access is denied.
62 */
63#define __range_ok(addr, size) \
64 (test_thread_flag(TIF_USERSPACE) \
65 && (((unsigned long)(addr) >= 0x80000000) \
66 || ((unsigned long)(size) > 0x80000000) \
67 || (((unsigned long)(addr) + (unsigned long)(size)) > 0x80000000)))
68
69#define access_ok(type, addr, size) (likely(__range_ok(addr, size) == 0))
70
71static inline int
72verify_area(int type, const void __user *addr, unsigned long size)
73{
74 return access_ok(type, addr, size) ? 0 : -EFAULT;
75}
76
77/* Generic arbitrary sized copy. Return the number of bytes NOT copied */
78extern __kernel_size_t __copy_user(void *to, const void *from,
79 __kernel_size_t n);
80
81extern __kernel_size_t copy_to_user(void __user *to, const void *from,
82 __kernel_size_t n);
83extern __kernel_size_t copy_from_user(void *to, const void __user *from,
84 __kernel_size_t n);
85
86static inline __kernel_size_t __copy_to_user(void __user *to, const void *from,
87 __kernel_size_t n)
88{
89 return __copy_user((void __force *)to, from, n);
90}
91static inline __kernel_size_t __copy_from_user(void *to,
92 const void __user *from,
93 __kernel_size_t n)
94{
95 return __copy_user(to, (const void __force *)from, n);
96}
97
98#define __copy_to_user_inatomic __copy_to_user
99#define __copy_from_user_inatomic __copy_from_user
100
101/*
102 * put_user: - Write a simple value into user space.
103 * @x: Value to copy to user space.
104 * @ptr: Destination address, in user space.
105 *
106 * Context: User context only. This function may sleep.
107 *
108 * This macro copies a single simple value from kernel space to user
109 * space. It supports simple types like char and int, but not larger
110 * data types like structures or arrays.
111 *
112 * @ptr must have pointer-to-simple-variable type, and @x must be assignable
113 * to the result of dereferencing @ptr.
114 *
115 * Returns zero on success, or -EFAULT on error.
116 */
117#define put_user(x,ptr) \
118 __put_user_check((x),(ptr),sizeof(*(ptr)))
119
120/*
121 * get_user: - Get a simple variable from user space.
122 * @x: Variable to store result.
123 * @ptr: Source address, in user space.
124 *
125 * Context: User context only. This function may sleep.
126 *
127 * This macro copies a single simple variable from user space to kernel
128 * space. It supports simple types like char and int, but not larger
129 * data types like structures or arrays.
130 *
131 * @ptr must have pointer-to-simple-variable type, and the result of
132 * dereferencing @ptr must be assignable to @x without a cast.
133 *
134 * Returns zero on success, or -EFAULT on error.
135 * On error, the variable @x is set to zero.
136 */
137#define get_user(x,ptr) \
138 __get_user_check((x),(ptr),sizeof(*(ptr)))
139
140/*
141 * __put_user: - Write a simple value into user space, with less checking.
142 * @x: Value to copy to user space.
143 * @ptr: Destination address, in user space.
144 *
145 * Context: User context only. This function may sleep.
146 *
147 * This macro copies a single simple value from kernel space to user
148 * space. It supports simple types like char and int, but not larger
149 * data types like structures or arrays.
150 *
151 * @ptr must have pointer-to-simple-variable type, and @x must be assignable
152 * to the result of dereferencing @ptr.
153 *
154 * Caller must check the pointer with access_ok() before calling this
155 * function.
156 *
157 * Returns zero on success, or -EFAULT on error.
158 */
159#define __put_user(x,ptr) \
160 __put_user_nocheck((x),(ptr),sizeof(*(ptr)))
161
162/*
163 * __get_user: - Get a simple variable from user space, with less checking.
164 * @x: Variable to store result.
165 * @ptr: Source address, in user space.
166 *
167 * Context: User context only. This function may sleep.
168 *
169 * This macro copies a single simple variable from user space to kernel
170 * space. It supports simple types like char and int, but not larger
171 * data types like structures or arrays.
172 *
173 * @ptr must have pointer-to-simple-variable type, and the result of
174 * dereferencing @ptr must be assignable to @x without a cast.
175 *
176 * Caller must check the pointer with access_ok() before calling this
177 * function.
178 *
179 * Returns zero on success, or -EFAULT on error.
180 * On error, the variable @x is set to zero.
181 */
182#define __get_user(x,ptr) \
183 __get_user_nocheck((x),(ptr),sizeof(*(ptr)))
184
185extern int __get_user_bad(void);
186extern int __put_user_bad(void);
187
188#define __get_user_nocheck(x, ptr, size) \
189({ \
190 typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0; \
191 int __gu_err = 0; \
192 \
193 switch (size) { \
194 case 1: __get_user_asm("ub", __gu_val, ptr, __gu_err); break; \
195 case 2: __get_user_asm("uh", __gu_val, ptr, __gu_err); break; \
196 case 4: __get_user_asm("w", __gu_val, ptr, __gu_err); break; \
197 case 8: __get_user_asm("d", __gu_val, ptr, __gu_err); break; \
198 default: __gu_err = __get_user_bad(); break; \
199 } \
200 \
201 x = __gu_val; \
202 __gu_err; \
203})
204
205#define __get_user_check(x, ptr, size) \
206({ \
207 typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0; \
208 const typeof(*(ptr)) __user * __gu_addr = (ptr); \
209 int __gu_err = 0; \
210 \
211 if (access_ok(VERIFY_READ, __gu_addr, size)) { \
212 switch (size) { \
213 case 1: \
214 __get_user_asm("ub", __gu_val, __gu_addr, \
215 __gu_err); \
216 break; \
217 case 2: \
218 __get_user_asm("uh", __gu_val, __gu_addr, \
219 __gu_err); \
220 break; \
221 case 4: \
222 __get_user_asm("w", __gu_val, __gu_addr, \
223 __gu_err); \
224 break; \
225 case 8: \
226 __get_user_asm("d", __gu_val, __gu_addr, \
227 __gu_err); \
228 break; \
229 default: \
230 __gu_err = __get_user_bad(); \
231 break; \
232 } \
233 } else { \
234 __gu_err = -EFAULT; \
235 } \
236 x = __gu_val; \
237 __gu_err; \
238})
239
240#define __get_user_asm(suffix, __gu_val, ptr, __gu_err) \
241 asm volatile( \
242 "1: ld." suffix " %1, %3 \n" \
243 "2: \n" \
244 " .section .fixup, \"ax\" \n" \
245 "3: mov %0, %4 \n" \
246 " rjmp 2b \n" \
247 " .previous \n" \
248 " .section __ex_table, \"a\" \n" \
249 " .long 1b, 3b \n" \
250 " .previous \n" \
251 : "=r"(__gu_err), "=r"(__gu_val) \
252 : "0"(__gu_err), "m"(*(ptr)), "i"(-EFAULT))
253
254#define __put_user_nocheck(x, ptr, size) \
255({ \
256 typeof(*(ptr)) __pu_val; \
257 int __pu_err = 0; \
258 \
259 __pu_val = (x); \
260 switch (size) { \
261 case 1: __put_user_asm("b", ptr, __pu_val, __pu_err); break; \
262 case 2: __put_user_asm("h", ptr, __pu_val, __pu_err); break; \
263 case 4: __put_user_asm("w", ptr, __pu_val, __pu_err); break; \
264 case 8: __put_user_asm("d", ptr, __pu_val, __pu_err); break; \
265 default: __pu_err = __put_user_bad(); break; \
266 } \
267 __pu_err; \
268})
269
270#define __put_user_check(x, ptr, size) \
271({ \
272 typeof(*(ptr)) __pu_val; \
273 typeof(*(ptr)) __user *__pu_addr = (ptr); \
274 int __pu_err = 0; \
275 \
276 __pu_val = (x); \
277 if (access_ok(VERIFY_WRITE, __pu_addr, size)) { \
278 switch (size) { \
279 case 1: \
280 __put_user_asm("b", __pu_addr, __pu_val, \
281 __pu_err); \
282 break; \
283 case 2: \
284 __put_user_asm("h", __pu_addr, __pu_val, \
285 __pu_err); \
286 break; \
287 case 4: \
288 __put_user_asm("w", __pu_addr, __pu_val, \
289 __pu_err); \
290 break; \
291 case 8: \
292 __put_user_asm("d", __pu_addr, __pu_val, \
293 __pu_err); \
294 break; \
295 default: \
296 __pu_err = __put_user_bad(); \
297 break; \
298 } \
299 } else { \
300 __pu_err = -EFAULT; \
301 } \
302 __pu_err; \
303})
304
305#define __put_user_asm(suffix, ptr, __pu_val, __gu_err) \
306 asm volatile( \
307 "1: st." suffix " %1, %3 \n" \
308 "2: \n" \
309 " .section .fixup, \"ax\" \n" \
310 "3: mov %0, %4 \n" \
311 " rjmp 2b \n" \
312 " .previous \n" \
313 " .section __ex_table, \"a\" \n" \
314 " .long 1b, 3b \n" \
315 " .previous \n" \
316 : "=r"(__gu_err), "=m"(*(ptr)) \
317 : "0"(__gu_err), "r"(__pu_val), "i"(-EFAULT))
318
319extern __kernel_size_t clear_user(void __user *addr, __kernel_size_t size);
320extern __kernel_size_t __clear_user(void __user *addr, __kernel_size_t size);
321
322extern long strncpy_from_user(char *dst, const char __user *src, long count);
323extern long __strncpy_from_user(char *dst, const char __user *src, long count);
324
325extern long strnlen_user(const char __user *__s, long __n);
326extern long __strnlen_user(const char __user *__s, long __n);
327
328#define strlen_user(s) strnlen_user(s, ~0UL >> 1)
329
330struct exception_table_entry
331{
332 unsigned long insn, fixup;
333};
334
335#endif /* __ASM_AVR32_UACCESS_H */
diff --git a/include/asm-avr32/ucontext.h b/include/asm-avr32/ucontext.h
new file mode 100644
index 000000000000..ac7259c2a799
--- /dev/null
+++ b/include/asm-avr32/ucontext.h
@@ -0,0 +1,12 @@
1#ifndef __ASM_AVR32_UCONTEXT_H
2#define __ASM_AVR32_UCONTEXT_H
3
4struct ucontext {
5 unsigned long uc_flags;
6 struct ucontext * uc_link;
7 stack_t uc_stack;
8 struct sigcontext uc_mcontext;
9 sigset_t uc_sigmask;
10};
11
12#endif /* __ASM_AVR32_UCONTEXT_H */
diff --git a/include/asm-avr32/unaligned.h b/include/asm-avr32/unaligned.h
new file mode 100644
index 000000000000..3042723fcbfd
--- /dev/null
+++ b/include/asm-avr32/unaligned.h
@@ -0,0 +1,25 @@
1#ifndef __ASM_AVR32_UNALIGNED_H
2#define __ASM_AVR32_UNALIGNED_H
3
4/*
5 * AVR32 can handle some unaligned accesses, depending on the
6 * implementation. The AVR32 AP implementation can handle unaligned
7 * words, but halfwords must be halfword-aligned, and doublewords must
8 * be word-aligned.
9 *
10 * TODO: Make all this CPU-specific and optimize.
11 */
12
13#include <linux/string.h>
14
15/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
16
17#define get_unaligned(ptr) \
18 ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
19
20#define put_unaligned(val, ptr) \
21 ({ __typeof__(*(ptr)) __tmp = (val); \
22 memmove((ptr), &__tmp, sizeof(*(ptr))); \
23 (void)0; })
24
25#endif /* __ASM_AVR32_UNALIGNED_H */
diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h
new file mode 100644
index 000000000000..1f528f92690d
--- /dev/null
+++ b/include/asm-avr32/unistd.h
@@ -0,0 +1,387 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __ASM_AVR32_UNISTD_H
9#define __ASM_AVR32_UNISTD_H
10
11/*
12 * This file contains the system call numbers.
13 */
14
15#define __NR_restart_syscall 0
16#define __NR_exit 1
17#define __NR_fork 2
18#define __NR_read 3
19#define __NR_write 4
20#define __NR_open 5
21#define __NR_close 6
22#define __NR_umask 7
23#define __NR_creat 8
24#define __NR_link 9
25#define __NR_unlink 10
26#define __NR_execve 11
27#define __NR_chdir 12
28#define __NR_time 13
29#define __NR_mknod 14
30#define __NR_chmod 15
31#define __NR_chown 16
32#define __NR_lchown 17
33#define __NR_lseek 18
34#define __NR__llseek 19
35#define __NR_getpid 20
36#define __NR_mount 21
37#define __NR_umount2 22
38#define __NR_setuid 23
39#define __NR_getuid 24
40#define __NR_stime 25
41#define __NR_ptrace 26
42#define __NR_alarm 27
43#define __NR_pause 28
44#define __NR_utime 29
45#define __NR_stat 30
46#define __NR_fstat 31
47#define __NR_lstat 32
48#define __NR_access 33
49#define __NR_chroot 34
50#define __NR_sync 35
51#define __NR_fsync 36
52#define __NR_kill 37
53#define __NR_rename 38
54#define __NR_mkdir 39
55#define __NR_rmdir 40
56#define __NR_dup 41
57#define __NR_pipe 42
58#define __NR_times 43
59#define __NR_clone 44
60#define __NR_brk 45
61#define __NR_setgid 46
62#define __NR_getgid 47
63#define __NR_getcwd 48
64#define __NR_geteuid 49
65#define __NR_getegid 50
66#define __NR_acct 51
67#define __NR_setfsuid 52
68#define __NR_setfsgid 53
69#define __NR_ioctl 54
70#define __NR_fcntl 55
71#define __NR_setpgid 56
72#define __NR_mremap 57
73#define __NR_setresuid 58
74#define __NR_getresuid 59
75#define __NR_setreuid 60
76#define __NR_setregid 61
77#define __NR_ustat 62
78#define __NR_dup2 63
79#define __NR_getppid 64
80#define __NR_getpgrp 65
81#define __NR_setsid 66
82#define __NR_rt_sigaction 67
83#define __NR_rt_sigreturn 68
84#define __NR_rt_sigprocmask 69
85#define __NR_rt_sigpending 70
86#define __NR_rt_sigtimedwait 71
87#define __NR_rt_sigqueueinfo 72
88#define __NR_rt_sigsuspend 73
89#define __NR_sethostname 74
90#define __NR_setrlimit 75
91#define __NR_getrlimit 76 /* SuS compliant getrlimit */
92#define __NR_getrusage 77
93#define __NR_gettimeofday 78
94#define __NR_settimeofday 79
95#define __NR_getgroups 80
96#define __NR_setgroups 81
97#define __NR_select 82
98#define __NR_symlink 83
99#define __NR_fchdir 84
100#define __NR_readlink 85
101#define __NR_pread 86
102#define __NR_pwrite 87
103#define __NR_swapon 88
104#define __NR_reboot 89
105#define __NR_mmap2 90
106#define __NR_munmap 91
107#define __NR_truncate 92
108#define __NR_ftruncate 93
109#define __NR_fchmod 94
110#define __NR_fchown 95
111#define __NR_getpriority 96
112#define __NR_setpriority 97
113#define __NR_wait4 98
114#define __NR_statfs 99
115#define __NR_fstatfs 100
116#define __NR_vhangup 101
117#define __NR_sigaltstack 102
118#define __NR_syslog 103
119#define __NR_setitimer 104
120#define __NR_getitimer 105
121#define __NR_swapoff 106
122#define __NR_sysinfo 107
123#define __NR_ipc 108
124#define __NR_sendfile 109
125#define __NR_setdomainname 110
126#define __NR_uname 111
127#define __NR_adjtimex 112
128#define __NR_mprotect 113
129#define __NR_vfork 114
130#define __NR_init_module 115
131#define __NR_delete_module 116
132#define __NR_quotactl 117
133#define __NR_getpgid 118
134#define __NR_bdflush 119
135#define __NR_sysfs 120
136#define __NR_personality 121
137#define __NR_afs_syscall 122 /* Syscall for Andrew File System */
138#define __NR_getdents 123
139#define __NR_flock 124
140#define __NR_msync 125
141#define __NR_readv 126
142#define __NR_writev 127
143#define __NR_getsid 128
144#define __NR_fdatasync 129
145#define __NR__sysctl 130
146#define __NR_mlock 131
147#define __NR_munlock 132
148#define __NR_mlockall 133
149#define __NR_munlockall 134
150#define __NR_sched_setparam 135
151#define __NR_sched_getparam 136
152#define __NR_sched_setscheduler 137
153#define __NR_sched_getscheduler 138
154#define __NR_sched_yield 139
155#define __NR_sched_get_priority_max 140
156#define __NR_sched_get_priority_min 141
157#define __NR_sched_rr_get_interval 142
158#define __NR_nanosleep 143
159#define __NR_poll 144
160#define __NR_nfsservctl 145
161#define __NR_setresgid 146
162#define __NR_getresgid 147
163#define __NR_prctl 148
164#define __NR_socket 149
165#define __NR_bind 150
166#define __NR_connect 151
167#define __NR_listen 152
168#define __NR_accept 153
169#define __NR_getsockname 154
170#define __NR_getpeername 155
171#define __NR_socketpair 156
172#define __NR_send 157
173#define __NR_recv 158
174#define __NR_sendto 159
175#define __NR_recvfrom 160
176#define __NR_shutdown 161
177#define __NR_setsockopt 162
178#define __NR_getsockopt 163
179#define __NR_sendmsg 164
180#define __NR_recvmsg 165
181#define __NR_truncate64 166
182#define __NR_ftruncate64 167
183#define __NR_stat64 168
184#define __NR_lstat64 169
185#define __NR_fstat64 170
186#define __NR_pivot_root 171
187#define __NR_mincore 172
188#define __NR_madvise 173
189#define __NR_getdents64 174
190#define __NR_fcntl64 175
191#define __NR_gettid 176
192#define __NR_readahead 177
193#define __NR_setxattr 178
194#define __NR_lsetxattr 179
195#define __NR_fsetxattr 180
196#define __NR_getxattr 181
197#define __NR_lgetxattr 182
198#define __NR_fgetxattr 183
199#define __NR_listxattr 184
200#define __NR_llistxattr 185
201#define __NR_flistxattr 186
202#define __NR_removexattr 187
203#define __NR_lremovexattr 188
204#define __NR_fremovexattr 189
205#define __NR_tkill 190
206#define __NR_sendfile64 191
207#define __NR_futex 192
208#define __NR_sched_setaffinity 193
209#define __NR_sched_getaffinity 194
210#define __NR_capget 195
211#define __NR_capset 196
212#define __NR_io_setup 197
213#define __NR_io_destroy 198
214#define __NR_io_getevents 199
215#define __NR_io_submit 200
216#define __NR_io_cancel 201
217#define __NR_fadvise64 202
218#define __NR_exit_group 203
219#define __NR_lookup_dcookie 204
220#define __NR_epoll_create 205
221#define __NR_epoll_ctl 206
222#define __NR_epoll_wait 207
223#define __NR_remap_file_pages 208
224#define __NR_set_tid_address 209
225
226#define __NR_timer_create 210
227#define __NR_timer_settime 211
228#define __NR_timer_gettime 212
229#define __NR_timer_getoverrun 213
230#define __NR_timer_delete 214
231#define __NR_clock_settime 215
232#define __NR_clock_gettime 216
233#define __NR_clock_getres 217
234#define __NR_clock_nanosleep 218
235#define __NR_statfs64 219
236#define __NR_fstatfs64 220
237#define __NR_tgkill 221
238 /* 222 reserved for tux */
239#define __NR_utimes 223
240#define __NR_fadvise64_64 224
241
242#define __NR_cacheflush 225
243
244#define __NR_vserver 226
245#define __NR_mq_open 227
246#define __NR_mq_unlink 228
247#define __NR_mq_timedsend 229
248#define __NR_mq_timedreceive 230
249#define __NR_mq_notify 231
250#define __NR_mq_getsetattr 232
251#define __NR_kexec_load 233
252#define __NR_waitid 234
253#define __NR_add_key 235
254#define __NR_request_key 236
255#define __NR_keyctl 237
256#define __NR_ioprio_set 238
257#define __NR_ioprio_get 239
258#define __NR_inotify_init 240
259#define __NR_inotify_add_watch 241
260#define __NR_inotify_rm_watch 242
261#define __NR_openat 243
262#define __NR_mkdirat 244
263#define __NR_mknodat 245
264#define __NR_fchownat 246
265#define __NR_futimesat 247
266#define __NR_fstatat64 248
267#define __NR_unlinkat 249
268#define __NR_renameat 250
269#define __NR_linkat 251
270#define __NR_symlinkat 252
271#define __NR_readlinkat 253
272#define __NR_fchmodat 254
273#define __NR_faccessat 255
274#define __NR_pselect6 256
275#define __NR_ppoll 257
276#define __NR_unshare 258
277#define __NR_set_robust_list 259
278#define __NR_get_robust_list 260
279#define __NR_splice 261
280#define __NR_sync_file_range 262
281#define __NR_tee 263
282#define __NR_vmsplice 264
283
284#define NR_syscalls 265
285
286
287/*
288 * AVR32 calling convention for system calls:
289 * - System call number in r8
290 * - Parameters in r12 and downwards to r9 as well as r6 and r5.
291 * - Return value in r12
292 */
293
294/*
295 * user-visible error numbers are in the range -1 - -124: see
296 * <asm-generic/errno.h>
297 */
298
299#define __syscall_return(type, res) do { \
300 if ((unsigned long)(res) >= (unsigned long)(-125)) { \
301 errno = -(res); \
302 res = -1; \
303 } \
304 return (type) (res); \
305 } while (0)
306
307#ifdef __KERNEL__
308#define __ARCH_WANT_IPC_PARSE_VERSION
309#define __ARCH_WANT_STAT64
310#define __ARCH_WANT_SYS_ALARM
311#define __ARCH_WANT_SYS_GETHOSTNAME
312#define __ARCH_WANT_SYS_PAUSE
313#define __ARCH_WANT_SYS_TIME
314#define __ARCH_WANT_SYS_UTIME
315#define __ARCH_WANT_SYS_WAITPID
316#define __ARCH_WANT_SYS_FADVISE64
317#define __ARCH_WANT_SYS_GETPGRP
318#define __ARCH_WANT_SYS_LLSEEK
319#define __ARCH_WANT_SYS_GETPGRP
320#define __ARCH_WANT_SYS_RT_SIGACTION
321#define __ARCH_WANT_SYS_RT_SIGSUSPEND
322#endif
323
324#if defined(__KERNEL_SYSCALLS__) || defined(__CHECKER__)
325
326#include <linux/types.h>
327#include <linux/linkage.h>
328#include <asm/signal.h>
329
330struct pt_regs;
331
332/*
333 * we need this inline - forking from kernel space will result
334 * in NO COPY ON WRITE (!!!), until an execve is executed. This
335 * is no problem, but for the stack. This is handled by not letting
336 * main() use the stack at all after fork(). Thus, no function
337 * calls - which means inline code for fork too, as otherwise we
338 * would use the stack upon exit from 'fork()'.
339 *
340 * Actually only pause and fork are needed inline, so that there
341 * won't be any messing with the stack from main(), but we define
342 * some others too.
343 */
344static inline int execve(const char *file, char **argv, char **envp)
345{
346 register long scno asm("r8") = __NR_execve;
347 register long sc1 asm("r12") = (long)file;
348 register long sc2 asm("r11") = (long)argv;
349 register long sc3 asm("r10") = (long)envp;
350 int res;
351
352 asm volatile("scall"
353 : "=r"(sc1)
354 : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3)
355 : "lr", "memory");
356 res = sc1;
357 __syscall_return(int, res);
358}
359
360asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
361asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
362 struct pt_regs *regs);
363asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
364asmlinkage int sys_pipe(unsigned long __user *filedes);
365asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
366 unsigned long prot, unsigned long flags,
367 unsigned long fd, off_t offset);
368asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len);
369asmlinkage int sys_fork(struct pt_regs *regs);
370asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
371 unsigned long parent_tidptr,
372 unsigned long child_tidptr, struct pt_regs *regs);
373asmlinkage int sys_vfork(struct pt_regs *regs);
374asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv,
375 char __user *__user *uenvp, struct pt_regs *regs);
376
377#endif
378
379/*
380 * "Conditional" syscalls
381 *
382 * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
383 * but it doesn't work on all toolchains, so we just do it by hand
384 */
385#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
386
387#endif /* __ASM_AVR32_UNISTD_H */
diff --git a/include/asm-avr32/user.h b/include/asm-avr32/user.h
new file mode 100644
index 000000000000..060fb3acee49
--- /dev/null
+++ b/include/asm-avr32/user.h
@@ -0,0 +1,65 @@
1/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 *
8 * Note: We may not need these definitions for AVR32, as we don't
9 * support a.out.
10 */
11#ifndef __ASM_AVR32_USER_H
12#define __ASM_AVR32_USER_H
13
14#include <linux/types.h>
15#include <asm/ptrace.h>
16#include <asm/page.h>
17
18/*
19 * Core file format: The core file is written in such a way that gdb
20 * can understand it and provide useful information to the user (under
21 * linux we use the `trad-core' bfd). The file contents are as follows:
22 *
23 * upage: 1 page consisting of a user struct that tells gdb
24 * what is present in the file. Directly after this is a
25 * copy of the task_struct, which is currently not used by gdb,
26 * but it may come in handy at some point. All of the registers
27 * are stored as part of the upage. The upage should always be
28 * only one page long.
29 * data: The data segment follows next. We use current->end_text to
30 * current->brk to pick up all of the user variables, plus any memory
31 * that may have been sbrk'ed. No attempt is made to determine if a
32 * page is demand-zero or if a page is totally unused, we just cover
33 * the entire range. All of the addresses are rounded in such a way
34 * that an integral number of pages is written.
35 * stack: We need the stack information in order to get a meaningful
36 * backtrace. We need to write the data from usp to
37 * current->start_stack, so we round each of these in order to be able
38 * to write an integer number of pages.
39 */
40
41struct user_fpu_struct {
42 /* We have no FPU (yet) */
43};
44
45struct user {
46 struct pt_regs regs; /* entire machine state */
47 size_t u_tsize; /* text size (pages) */
48 size_t u_dsize; /* data size (pages) */
49 size_t u_ssize; /* stack size (pages) */
50 unsigned long start_code; /* text starting address */
51 unsigned long start_data; /* data starting address */
52 unsigned long start_stack; /* stack starting address */
53 long int signal; /* signal causing core dump */
54 struct regs * u_ar0; /* help gdb find registers */
55 unsigned long magic; /* identifies a core file */
56 char u_comm[32]; /* user command name */
57};
58
59#define NBPG PAGE_SIZE
60#define UPAGES 1
61#define HOST_TEXT_START_ADDR (u.start_code)
62#define HOST_DATA_START_ADDR (u.start_data)
63#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
64
65#endif /* __ASM_AVR32_USER_H */
diff --git a/include/linux/elf-em.h b/include/linux/elf-em.h
index 6a5796c81c90..666e0a5f00fc 100644
--- a/include/linux/elf-em.h
+++ b/include/linux/elf-em.h
@@ -31,6 +31,7 @@
31#define EM_M32R 88 /* Renesas M32R */ 31#define EM_M32R 88 /* Renesas M32R */
32#define EM_H8_300 46 /* Renesas H8/300,300H,H8S */ 32#define EM_H8_300 46 /* Renesas H8/300,300H,H8S */
33#define EM_FRV 0x5441 /* Fujitsu FR-V */ 33#define EM_FRV 0x5441 /* Fujitsu FR-V */
34#define EM_AVR32 0x18ad /* Atmel AVR32 */
34 35
35/* 36/*
36 * This is an interim value that we will use until the committee comes 37 * This is an interim value that we will use until the committee comes
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 554ee688a9f8..3f21cc79a134 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -277,7 +277,7 @@ config DEBUG_HIGHMEM
277config DEBUG_BUGVERBOSE 277config DEBUG_BUGVERBOSE
278 bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED 278 bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED
279 depends on BUG 279 depends on BUG
280 depends on ARM || ARM26 || M32R || M68K || SPARC32 || SPARC64 || X86_32 || FRV 280 depends on ARM || ARM26 || AVR32 || M32R || M68K || SPARC32 || SPARC64 || X86_32 || FRV
281 default !EMBEDDED 281 default !EMBEDDED
282 help 282 help
283 Say Y here to make BUG() panics output the file name and line number 283 Say Y here to make BUG() panics output the file name and line number
@@ -315,7 +315,7 @@ config DEBUG_VM
315 315
316config FRAME_POINTER 316config FRAME_POINTER
317 bool "Compile the kernel with frame pointers" 317 bool "Compile the kernel with frame pointers"
318 depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390) 318 depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || AVR32)
319 default y if DEBUG_INFO && UML 319 default y if DEBUG_INFO && UML
320 help 320 help
321 If you say Y here the resulting kernel image will be slightly larger 321 If you say Y here the resulting kernel image will be slightly larger