Commit 7b7adc4a authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32: (40 commits)
  unicore32: rewrite arch-specific tlb.h to use asm-generic version
  unicore32: modify io_p2v and io_v2p macros, and adjust PKUNITY_mmio_BASEs
  unicore32: replace unicore32-specific iomap functions with generic lib implementation
  unicore32 machine related: add frame buffer driver for pkunity-v3 soc
  unicore32 machine related files: add i2c bus drivers for pkunity-v3 soc
  unicore32 io: redefine __REG(x) and re-use readl/writel funcs
  unicore32 i8042 upgrade and bugfix: adjust resource request region type
  unicore32 upgrade to v2.6.38-rc5: add one more paramter for pte_alloc_map call
  unicore32 i8042: adjust io funcs of i8042-unicore32io.h
  unicore32: rename PKUNITY_IOSPACE_BASE to PKUNITY_MMIO_BASE
  unicore32: modify function names and parameters for irq_chips
  unicore32: remove unused lines in arch/unicore32/include/asm/irq.h
  unicore32 time.c: change calculate method for clock_event_device
  unicore32: ADD MAINTAINER for unicore32 architecture
  unicore32 machine related files: ps2 driver
  unicore32 machine related files: pci bus handling
  unicore32 machine related files: hardware registers
  unicore32 machine related files: core files
  unicore32 additional architecture files: boot process
  unicore32 additional architecture files: low-level lib: misc
  ...
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
parents 31598e87 289d6b0e
...@@ -4907,6 +4907,15 @@ S: Maintained ...@@ -4907,6 +4907,15 @@ S: Maintained
F: drivers/block/pktcdvd.c F: drivers/block/pktcdvd.c
F: include/linux/pktcdvd.h F: include/linux/pktcdvd.h
PKUNITY SOC DRIVERS
M: Guan Xuetao <gxt@mprc.pku.edu.cn>
W: http://mprc.pku.edu.cn/~guanxuetao/linux
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.git
F: drivers/input/serio/i8042-unicore32io.h
F: drivers/i2c/busses/i2c-puv3.c
F: drivers/video/fb-puv3.c
PMC SIERRA MaxRAID DRIVER PMC SIERRA MaxRAID DRIVER
M: Anil Ravindranath <anil_ravindranath@pmc-sierra.com> M: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
L: linux-scsi@vger.kernel.org L: linux-scsi@vger.kernel.org
...@@ -6270,6 +6279,13 @@ F: drivers/uwb/ ...@@ -6270,6 +6279,13 @@ F: drivers/uwb/
F: include/linux/uwb.h F: include/linux/uwb.h
F: include/linux/uwb/ F: include/linux/uwb/
UNICORE32 ARCHITECTURE:
M: Guan Xuetao <gxt@mprc.pku.edu.cn>
W: http://mprc.pku.edu.cn/~guanxuetao/linux
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.git
F: arch/unicore32/
UNIFDEF UNIFDEF
M: Tony Finch <dot@dotat.at> M: Tony Finch <dot@dotat.at>
W: http://dotat.at/prog/unifdef W: http://dotat.at/prog/unifdef
......
#
# Generated include files
#
include/generated
#
# Generated ld script file
#
kernel/vmlinux.lds
#
# Generated images in boot
#
boot/Image
boot/zImage
boot/uImage
#
# Generated files in boot/compressed
#
boot/compressed/piggy.S
boot/compressed/piggy.gzip
boot/compressed/vmlinux
boot/compressed/vmlinux.lds
config UNICORE32
def_bool y
select HAVE_MEMBLOCK
select HAVE_GENERIC_DMA_COHERENT
select HAVE_GENERIC_HARDIRQS
select HAVE_DMA_ATTRS
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_LZO
select HAVE_KERNEL_LZMA
select GENERIC_FIND_FIRST_BIT
select GENERIC_IRQ_PROBE
select GENERIC_HARDIRQS_NO_DEPRECATED
select ARCH_WANT_FRAME_POINTERS
help
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip
designs licensed by PKUnity Ltd.
Please see web page at <http://www.pkunity.com/>.
config HAVE_PWM
bool
config GENERIC_GPIO
def_bool y
config GENERIC_CLOCKEVENTS
bool
config GENERIC_CSUM
def_bool y
config GENERIC_IOMAP
def_bool y
config NO_IOPORT
bool
config STACKTRACE_SUPPORT
def_bool y
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config LOCKDEP_SUPPORT
def_bool y
config RWSEM_GENERIC_SPINLOCK
def_bool y
config RWSEM_XCHGADD_ALGORITHM
bool
config ARCH_HAS_ILOG2_U32
bool
config ARCH_HAS_ILOG2_U64
bool
config ARCH_HAS_CPUFREQ
bool
config GENERIC_HWEIGHT
def_bool y
config GENERIC_CALIBRATE_DELAY
def_bool y
config ARCH_MAY_HAVE_PC_FDC
bool
config NEED_DMA_MAP_STATE
def_bool y
source "init/Kconfig"
source "kernel/Kconfig.freezer"
menu "System Type"
config MMU
def_bool y
config ARCH_FPGA
bool
config ARCH_PUV3
def_bool y
select CPU_UCV2
select GENERIC_CLOCKEVENTS
select HAVE_CLK
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_CPUFREQ
# CONFIGs for ARCH_PUV3
if ARCH_PUV3
choice
prompt "Board Selection"
default PUV3_DB0913
config PUV3_FPGA_DLX200
select ARCH_FPGA
bool "FPGA board"
config PUV3_DB0913
bool "DEBUG board (0913)"
config PUV3_NB0916
bool "NetBook board (0916)"
select HAVE_PWM
config PUV3_SMW0919
bool "Security Mini-Workstation board (0919)"
endchoice
config PUV3_PM
def_bool y if !ARCH_FPGA
endif
source "arch/unicore32/mm/Kconfig"
comment "Floating poing support"
config UNICORE_FPU_F64
def_bool y if !ARCH_FPGA
endmenu
menu "Bus support"
config PCI
bool "PCI Support"
help
Find out whether you have a PCI motherboard. PCI is the name of a
bus system, i.e. the way the CPU talks to the other stuff inside
your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
VESA. If you have PCI, say Y, otherwise N.
source "drivers/pci/Kconfig"
source "drivers/pcmcia/Kconfig"
endmenu
menu "Kernel Features"
source "kernel/time/Kconfig"
source "kernel/Kconfig.preempt"
source "kernel/Kconfig.hz"
source "mm/Kconfig"
config LEDS
def_bool y
depends on GENERIC_GPIO
config ALIGNMENT_TRAP
def_bool y
help
Unicore processors can not fetch/store information which is not
naturally aligned on the bus, i.e., a 4 byte fetch must start at an
address divisible by 4. On 32-bit Unicore processors, these non-aligned
fetch/store instructions will be emulated in software if you say
here, which has a severe performance impact. This is necessary for
correct operation of some network protocols. With an IP-only
configuration it is safe to say N, otherwise say Y.
endmenu
menu "Boot options"
config CMDLINE
string "Default kernel command string"
default ""
config CMDLINE_FORCE
bool "Always use the default kernel command string"
depends on CMDLINE != ""
help
Always use the default kernel command string, even if the boot
loader passes other arguments to the kernel.
This is useful if you cannot or don't want to change the
command-line options your boot loader passes to the kernel.
If unsure, say N.
endmenu
menu "Userspace binary formats"
source "fs/Kconfig.binfmt"
endmenu
menu "Power management options"
source "kernel/power/Kconfig"
if ARCH_HAS_CPUFREQ
source "drivers/cpufreq/Kconfig"
endif
config ARCH_SUSPEND_POSSIBLE
def_bool y if !ARCH_FPGA
config ARCH_HIBERNATION_POSSIBLE
def_bool y if !ARCH_FPGA
endmenu
source "net/Kconfig"
if ARCH_PUV3
config PUV3_GPIO
bool
depends on !ARCH_FPGA
select GENERIC_GPIO
select GPIO_SYSFS if EXPERIMENTAL
default y
config PUV3_PWM
tristate
default BACKLIGHT_PWM
help
Enable support for NB0916 PWM controllers
config PUV3_RTC
tristate "PKUnity v3 RTC Support"
depends on !ARCH_FPGA
if PUV3_NB0916
menu "PKUnity NetBook-0916 Features"
config I2C_BATTERY_BQ27200
tristate "I2C Battery BQ27200 Support"
select PUV3_I2C
select POWER_SUPPLY
select BATTERY_BQ27x00
config I2C_EEPROM_AT24
tristate "I2C EEPROMs AT24 support"
select PUV3_I2C
select MISC_DEVICES
select EEPROM_AT24
config LCD_BACKLIGHT
tristate "LCD Backlight support"
select BACKLIGHT_LCD_SUPPORT
select BACKLIGHT_PWM
endmenu
endif
endif
source "drivers/Kconfig"
source "fs/Kconfig"
source "arch/unicore32/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
menu "Kernel hacking"
source "lib/Kconfig.debug"
config STRICT_DEVMEM
bool "Filter access to /dev/mem"
depends on MMU
---help---
If this option is disabled, you allow userspace (root) access to all
of memory, including kernel and userspace memory. Accidental
access to this is obviously disastrous, but specific access can
be used by people debugging the kernel.
If this option is switched on, the /dev/mem file only allows
userspace access to memory mapped peripherals.
If in doubt, say Y.
config EARLY_PRINTK
def_bool DEBUG_OCD
help
Write kernel log output directly into the ocd or to a serial port.
This is useful for kernel debugging when your machine crashes very
early before the console code is initialized. For normal operation
it is not recommended because it looks ugly and doesn't cooperate
with klogd/syslogd or the X server. You should normally N here,
unless you want to debug such a crash.
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T output.
# These options are only for real kernel hackers who want to get their hands dirty.
config DEBUG_LL
bool "Kernel low-level debugging functions"
depends on DEBUG_KERNEL
help
Say Y here to include definitions of printascii, printch, printhex
in the kernel. This is helpful if you are debugging code that
executes before the console is initialized.
config DEBUG_OCD
bool "Kernel low-level debugging via On-Chip-Debugger"
depends on DEBUG_LL
default y
help
Say Y here if you want the debug print routines to direct their
output to the UniCore On-Chip-Debugger channel using CP #1.
config DEBUG_OCD_BREAKPOINT
bool "Breakpoint support via On-Chip-Debugger"
depends on DEBUG_OCD
config DEBUG_UART
int "Kernel low-level debugging messages via serial port"
depends on DEBUG_LL
range 0 1
default "0"
help
Choice for UART for kernel low-level using PKUnity UARTS,
should be between zero and one. The port must have been
initialised by the boot-loader before use.
endmenu
#
# arch/unicore32/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2002~2010 by Guan Xue-tao
#
ifneq ($(SUBARCH),$(ARCH))
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := $(call cc-cross-prefix, unicore32-linux-)
endif
endif
LDFLAGS_vmlinux := -p --no-undefined -X
OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment -S
# Never generate .eh_frame
KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
# Never use hard float in kernel
KBUILD_CFLAGS += -msoft-float
ifeq ($(CONFIG_FRAME_POINTER),y)
KBUILD_CFLAGS += -mno-sched-prolog
endif
CHECKFLAGS += -D__unicore32__
head-y := arch/unicore32/kernel/head.o
head-y += arch/unicore32/kernel/init_task.o
core-y += arch/unicore32/kernel/
core-y += arch/unicore32/mm/
libs-y += arch/unicore32/lib/
ASM_GENERATED_DIR := $(srctree)/arch/unicore32/include/generated
LINUXINCLUDE += -I$(ASM_GENERATED_DIR)
ASM_GENERIC_HEADERS := atomic.h auxvec.h
ASM_GENERIC_HEADERS += bitsperlong.h bug.h bugs.h
ASM_GENERIC_HEADERS += cputime.h current.h
ASM_GENERIC_HEADERS += device.h div64.h
ASM_GENERIC_HEADERS += emergency-restart.h errno.h
ASM_GENERIC_HEADERS += fb.h fcntl.h ftrace.h
ASM_GENERIC_HEADERS += hardirq.h hw_irq.h
ASM_GENERIC_HEADERS += ioctl.h ioctls.h ipcbuf.h irq_regs.h
ASM_GENERIC_HEADERS += kdebug.h kmap_types.h
ASM_GENERIC_HEADERS += local.h
ASM_GENERIC_HEADERS += mman.h module.h msgbuf.h
ASM_GENERIC_HEADERS += param.h parport.h percpu.h poll.h posix_types.h
ASM_GENERIC_HEADERS += resource.h
ASM_GENERIC_HEADERS += scatterlist.h sections.h segment.h sembuf.h serial.h
ASM_GENERIC_HEADERS += setup.h shmbuf.h shmparam.h
ASM_GENERIC_HEADERS += siginfo.h signal.h sizes.h
ASM_GENERIC_HEADERS += socket.h sockios.h stat.h statfs.h swab.h syscalls.h
ASM_GENERIC_HEADERS += termbits.h termios.h topology.h types.h
ASM_GENERIC_HEADERS += ucontext.h unaligned.h user.h
ASM_GENERIC_HEADERS += vga.h
ASM_GENERIC_HEADERS += xor.h
archprepare:
ifneq ($(ASM_GENERATED_DIR), $(wildcard $(ASM_GENERATED_DIR)))
$(Q)mkdir -p $(ASM_GENERATED_DIR)/asm
$(Q)$(foreach a, $(ASM_GENERIC_HEADERS), \
echo '#include <asm-generic/$a>' \
> $(ASM_GENERATED_DIR)/asm/$a; )
endif
boot := arch/unicore32/boot
# Default target when executing plain make
KBUILD_IMAGE := zImage
all: $(KBUILD_IMAGE)
zImage Image uImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
MRPROPER_DIRS += $(ASM_GENERATED_DIR)
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
define archhelp
echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
echo ' uImage - U-Boot wrapped zImage'
endef
#
# arch/unicore32/boot/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2001~2010 GUAN Xue-tao
#
MKIMAGE := $(srctree)/scripts/mkuboot.sh
targets := Image zImage uImage
$(obj)/Image: vmlinux FORCE
$(call if_changed,objcopy)
@echo ' Kernel: $@ is ready'
$(obj)/compressed/vmlinux: $(obj)/Image FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed $@
$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)
@echo ' Kernel: $@ is ready'
quiet_cmd_uimage = UIMAGE $@
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A unicore -O linux -T kernel \
-C none -a $(LOADADDR) -e $(STARTADDR) \
-n 'Linux-$(KERNELRELEASE)' -d $< $@
$(obj)/uImage: LOADADDR=0x0
$(obj)/uImage: STARTADDR=$(LOADADDR)
$(obj)/uImage: $(obj)/zImage FORCE
$(call if_changed,uimage)
@echo ' Image $@ is ready'
PHONY += initrd FORCE
initrd:
@test "$(INITRD)" != "" || \
(echo You must specify INITRD; exit -1)
subdir- := compressed
#
# linux/arch/unicore32/boot/compressed/Makefile
#
# create a compressed vmlinuz image from the original vmlinux
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2001~2010 GUAN Xue-tao
#
EXTRA_CFLAGS := -fpic -fno-builtin
EXTRA_AFLAGS := -Wa,-march=all
OBJS := misc.o
# font.c and font.o
CFLAGS_font.o := -Dstatic=
$(obj)/font.c: $(srctree)/drivers/video/console/font_8x8.c
$(call cmd,shipped)
# piggy.S and piggy.o
suffix_$(CONFIG_KERNEL_GZIP) := gzip
suffix_$(CONFIG_KERNEL_BZIP2) := bz2
suffix_$(CONFIG_KERNEL_LZO) := lzo
suffix_$(CONFIG_KERNEL_LZMA) := lzma
$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
$(call if_changed,$(suffix_y))
SEDFLAGS_piggy = s/DECOMP_SUFFIX/$(suffix_y)/
$(obj)/piggy.S: $(obj)/piggy.S.in
@sed "$(SEDFLAGS_piggy)" < $< > $@
$(obj)/piggy.o: $(obj)/piggy.$(suffix_y) $(obj)/piggy.S FORCE
targets := vmlinux vmlinux.lds font.o font.c head.o misc.o \
piggy.$(suffix_y) piggy.o piggy.S \
# Make sure files are removed during clean
extra-y += piggy.gzip piggy.bz2 piggy.lzo piggy.lzma
# ?
LDFLAGS_vmlinux += -p
# Report unresolved symbol references
LDFLAGS_vmlinux += --no-undefined
# Delete all temporary local symbols
LDFLAGS_vmlinux += -X
# Next argument is a linker script
LDFLAGS_vmlinux += -T
# For uidivmod
$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/head.o $(obj)/piggy.o \
$(obj)/misc.o FORCE
$(call if_changed,ld)
@:
# We now have a PIC decompressor implementation. Decompressors running
# from RAM should not define ZTEXTADDR. Decompressors running directly
# from ROM or Flash must define ZTEXTADDR (preferably via the config)
ZTEXTADDR := 0
ZBSSADDR := ALIGN(4)
SEDFLAGS_lds = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/unicore32/boot/Makefile $(KCONFIG_CONFIG)
@sed "$(SEDFLAGS_lds)" < $< > $@
/*
* linux/arch/unicore32/boot/compressed/head.S
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/linkage.h>
#include <mach/memory.h>
#define csub cmpsub
#define cand cmpand
#define nop8 nop; nop; nop; nop; nop; nop; nop; nop
.section ".start", #alloc, #execinstr
.text
start:
.type start,#function
/* Initialize ASR, PRIV mode and INTR off */
mov r0, #0xD3
mov.a asr, r0
adr r0, LC0
ldm (r1, r2, r3, r5, r6, r7, r8), [r0]+
ldw sp, [r0+], #28
sub.a r0, r0, r1 @ calculate the delta offset
/*
* if delta is zero, we are running at the address
* we were linked at.
*/
beq not_relocated
/*
* We're running at a different address. We need to fix
* up various pointers:
* r5 - zImage base address (_start)
* r7 - GOT start
* r8 - GOT end
*/
add r5, r5, r0
add r7, r7, r0
add r8, r8, r0
/*
* we need to fix up pointers into the BSS region.
* r2 - BSS start
* r3 - BSS end
* sp - stack pointer
*/
add r2, r2, r0
add r3, r3, r0
add sp, sp, r0
/*
* Relocate all entries in the GOT table.
* This fixes up the C references.
* r7 - GOT start
* r8 - GOT end
*/
1001: ldw r1, [r7+], #0
add r1, r1, r0
stw.w r1, [r7]+, #4
csub.a r7, r8
bub 1001b
not_relocated:
/*
* Clear BSS region.
* r2 - BSS start
* r3 - BSS end
*/
mov r0, #0
1002: stw.w r0, [r2]+, #4
csub.a r2, r3
bub 1002b
/*
* Turn on the cache.
*/
mov r0, #0
movc p0.c5, r0, #28 @ cache invalidate all
nop8
movc p0.c6, r0, #6 @ tlb invalidate all
nop8
mov r0, #0x1c @ en icache and wb dcache
movc p0.c1, r0, #0
nop8
/*
* Set up some pointers, for starting decompressing.
*/
mov r1, sp @ malloc space above stack
add r2, sp, #0x10000 @ 64k max
/*
* Check to see if we will overwrite ourselves.
* r4 = final kernel address
* r5 = start of this image
* r6 = size of decompressed image
* r2 = end of malloc space (and therefore this image)
* We basically want:
* r4 >= r2 -> OK
* r4 + image length <= r5 -> OK
*/
ldw r4, =KERNEL_IMAGE_START
csub.a r4, r2
bea wont_overwrite
add r0, r4, r6
csub.a r0, r5
beb wont_overwrite
/*
* If overwrite, just print error message
*/
b __error_overwrite
/*
* We're not in danger of overwriting ourselves.
* Do this the simple way.
*/
wont_overwrite:
/*
* decompress_kernel:
* r0: output_start
* r1: free_mem_ptr_p
* r2: free_mem_ptr_end_p
*/
mov r0, r4
b.l decompress_kernel @ C functions
/*
* Clean and flush the cache to maintain consistency.
*/
mov r0, #0
movc p0.c5, r0, #14 @ flush dcache
nop8
movc p0.c5, r0, #20 @ icache invalidate all
nop8
/*
* Turn off the Cache and MMU.
*/
mov r0, #0 @ disable i/d cache and MMU
movc p0.c1, r0, #0
nop8
mov r0, #0 @ must be zero
ldw r4, =KERNEL_IMAGE_START
mov pc, r4 @ call kernel
.align 2
.type LC0, #object
LC0: .word LC0 @ r1
.word __bss_start @ r2
.word _end @ r3
.word _start @ r5
.word _image_size @ r6
.word _got_start @ r7
.word _got_end @ r8
.word decompress_stack_end @ sp
.size LC0, . - LC0
print_string:
#ifdef CONFIG_DEBUG_OCD
2001: ldb.w r1, [r0]+, #1
csub.a r1, #0
bne 2002f
mov pc, lr
2002:
movc r2, p1.c0, #0
cand.a r2, #2
bne 2002b
movc p1.c1, r1, #1
csub.a r1, #'\n'
cmoveq r1, #'\r'
beq 2002b
b 2001b
#else
mov pc, lr
#endif
__error_overwrite:
adr r0, str_error
b.l print_string
2001: nop8
b 2001b
str_error: .asciz "\nError: Kernel address OVERWRITE\n"
.align
.ltorg
.align 4
.section ".stack", "aw", %nobits
decompress_stack: .space 4096
decompress_stack_end:
/*
* linux/arch/unicore32/boot/compressed/misc.c
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <asm/unaligned.h>
#include <mach/uncompress.h>
/*
* gzip delarations
*/
unsigned char *output_data;
unsigned long output_ptr;
unsigned int free_mem_ptr;
unsigned int free_mem_end_ptr;
#define STATIC static
#define STATIC_RW_DATA /* non-static please */
/*
* arch-dependent implementations
*/
#ifndef ARCH_HAVE_DECOMP_ERROR
#define arch_decomp_error(x)
#endif
#ifndef ARCH_HAVE_DECOMP_SETUP
#define arch_decomp_setup()
#endif
#ifndef ARCH_HAVE_DECOMP_PUTS
#define arch_decomp_puts(p)
#endif
void *memcpy(void *dest, const void *src, size_t n)
{
int i = 0;
unsigned char *d = (unsigned char *)dest, *s = (unsigned char *)src;
for (i = n >> 3; i > 0; i--) {
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
}
if (n & 1 << 2) {
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
*d++ = *s++;
}
if (n & 1 << 1) {
*d++ = *s++;
*d++ = *s++;
}
if (n & 1)
*d++ = *s++;
return dest;
}
void error(char *x)
{
arch_decomp_puts("\n\n");
arch_decomp_puts(x);
arch_decomp_puts("\n\n -- System halted");
arch_decomp_error(x);
for (;;)
; /* Halt */
}
/* Heap size should be adjusted for different decompress method */
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
#endif
#ifdef CONFIG_KERNEL_BZIP2
#include "../../../../lib/decompress_bunzip2.c"
#endif
#ifdef CONFIG_KERNEL_LZO
#include "../../../../lib/decompress_unlzo.c"
#endif
#ifdef CONFIG_KERNEL_LZMA
#include "../../../../lib/decompress_unlzma.c"
#endif
unsigned long decompress_kernel(unsigned long output_start,
unsigned long free_mem_ptr_p,
unsigned long free_mem_ptr_end_p)
{
unsigned char *tmp;
output_data = (unsigned char *)output_start;
free_mem_ptr = free_mem_ptr_p;
free_mem_end_ptr = free_mem_ptr_end_p;
arch_decomp_setup();
tmp = (unsigned char *) (((unsigned long)input_data_end) - 4);
output_ptr = get_unaligned_le32(tmp);
arch_decomp_puts("Uncompressing Linux...");
decompress(input_data, input_data_end - input_data, NULL, NULL,
output_data, NULL, error);
arch_decomp_puts(" done, booting the kernel.\n");
return output_ptr;
}
.section .piggydata,#alloc
.globl input_data
input_data:
.incbin "arch/unicore32/boot/compressed/piggy.DECOMP_SUFFIX"
.globl input_data_end
input_data_end:
/*
* linux/arch/unicore/boot/compressed/vmlinux.lds.in
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
OUTPUT_ARCH(unicore32)
ENTRY(_start)
SECTIONS
{
/DISCARD/ : {
/*
* Discard any r/w data - this produces a link error if we have any,
* which is required for PIC decompression. Local data generates
* GOTOFF relocations, which prevents it being relocated independently
* of the text/got segments.
*/
*(.data)
}
. = TEXT_START;
_text = .;
.text : {
_start = .;
*(.start)
*(.text)
*(.text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata)
*(.rodata.*)
*(.piggydata)
. = ALIGN(4);
}
_etext = .;
/* Assume size of decompressed image is 4x the compressed image */
_image_size = (_etext - _text) * 4;
_got_start = .;
.got : { *(.got) }
_got_end = .;
.got.plt : { *(.got.plt) }
_edata = .;
. = BSS_START;
__bss_start = .;
.bss : { *(.bss) }
_end = .;
.stack : { *(.stack) }
.comment 0 : { *(.comment) }
}
### General setup
CONFIG_EXPERIMENTAL=y
CONFIG_LOCALVERSION="-debug"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_HOTPLUG=y
# Initial RAM filesystem and RAM disk (initramfs/initrd) support
#CONFIG_BLK_DEV_INITRD=y
#CONFIG_INITRAMFS_SOURCE="arch/unicore/ramfs/ramfs_config"
### Enable loadable module support
CONFIG_MODULES=n
CONFIG_MODULE_UNLOAD=y
### System Type
CONFIG_ARCH_PUV3=y
# Board Selection
CONFIG_PUV3_NB0916=y
# Processor Features
CONFIG_CPU_DCACHE_LINE_DISABLE=y
CONFIG_CPU_TLB_SINGLE_ENTRY_DISABLE=n
### Bus support
CONFIG_PCI=y
CONFIG_PCI_LEGACY=n
### Boot options
# for debug, adding: earlyprintk=ocd,keep initcall_debug
# others support: test_suspend=mem root=/dev/sda
# hibernate support: resume=/dev/sda3
CONFIG_CMDLINE="earlyprintk=ocd,keep ignore_loglevel"
# TODO: mem=512M video=unifb:1024x600-16@75
# for nfs: root=/dev/nfs rw nfsroot=192.168.10.88:/home/udb/nfs/,rsize=1024,wsize=1024
# ip=192.168.10.83:192.168.10.88:192.168.10.1:255.255.255.0::eth0:off
CONFIG_CMDLINE_FORCE=y
### Power management options
CONFIG_PM=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION="/dev/sda3"
CONFIG_CPU_FREQ=n
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
### Networking support
CONFIG_NET=y
# Networking options
CONFIG_PACKET=m
CONFIG_UNIX=m
# TCP/IP networking
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IPV6=n
# Wireless
CONFIG_WIRELESS=y
CONFIG_WIRELESS_EXT=y
CONFIG_MAC80211=m
### PKUnity SoC Features
CONFIG_USB_WLAN_HED_AQ3=n
CONFIG_USB_CMMB_INNOFIDEI=n
CONFIG_I2C_BATTERY_BQ27200=n
CONFIG_I2C_EEPROM_AT24=n
CONFIG_LCD_BACKLIGHT=n
CONFIG_PUV3_RTC=y
CONFIG_PUV3_UMAL=y
CONFIG_PUV3_MUSB=n
CONFIG_PUV3_AC97=n
CONFIG_PUV3_NAND=n
CONFIG_PUV3_MMC=n
CONFIG_PUV3_UART=n
### Device Drivers
# Memory Technology Device (MTD) support
CONFIG_MTD=m
CONFIG_MTD_UBI=m
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CHAR=m
CONFIG_MTD_BLKDEVS=m
# RAM/ROM/Flash chip drivers
CONFIG_MTD_CFI=m
CONFIG_MTD_JEDECPROBE=m
CONFIG_MTD_CFI_AMDSTD=m
# Mapping drivers for chip access
CONFIG_MTD_PHYSMAP=m
# Block devices
CONFIG_BLK_DEV_LOOP=m
# SCSI device support
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
# Serial ATA (prod) and Parallel ATA (experimental) drivers
CONFIG_ATA=y
CONFIG_SATA_VIA=y
# Network device support
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NETDEV_1000=y
# Wireless LAN
CONFIG_WLAN_80211=n
CONFIG_RT2X00=n
CONFIG_RT73USB=n
# Input device support
CONFIG_INPUT_EVDEV=m
# Keyboards
CONFIG_KEYBOARD_GPIO=m
# I2C support
CONFIG_I2C=y
CONFIG_I2C_PUV3=y
# Hardware Monitoring support
#CONFIG_SENSORS_LM75=m
# Generic Thermal sysfs driver
#CONFIG_THERMAL=m
#CONFIG_THERMAL_HWMON=y
# Multimedia support
CONFIG_MEDIA_SUPPORT=n
CONFIG_VIDEO_DEV=n
CONFIG_USB_VIDEO_CLASS=n
# Graphics support
CONFIG_FB=y
CONFIG_FB_PUV3_UNIGFX=y
# Console display driver support
CONFIG_VGA_CONSOLE=n
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
# Bootup logo
CONFIG_LOGO=n
# Sound card support
CONFIG_SOUND=m
# Advanced Linux Sound Architecture
CONFIG_SND=m
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
# USB support
CONFIG_USB_ARCH_HAS_HCD=n
CONFIG_USB=n
CONFIG_USB_DEVICEFS=n
CONFIG_USB_PRINTER=n
CONFIG_USB_STORAGE=n
# Inventra Highspeed Dual Role Controller
CONFIG_USB_MUSB_HDRC=n
# LED Support
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
# LED Triggers
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_IDE_DISK=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
# Real Time Clock
CONFIG_RTC_LIB=m
CONFIG_RTC_CLASS=m
### File systems
CONFIG_EXT2_FS=m
CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=y
CONFIG_FUSE_FS=m
# CD-ROM/DVD Filesystems
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
# DOS/FAT/NT Filesystems
CONFIG_VFAT_FS=m
# Pseudo filesystems
CONFIG_PROC_FS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# Miscellaneous filesystems
CONFIG_MISC_FILESYSTEMS=y
CONFIG_JFFS2_FS=m
CONFIG_UBIFS_FS=m
# Network File Systems
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_ROOT_NFS=y
# Partition Types
CONFIG_PARTITION_ADVANCED=y
CONFIG_MSDOS_PARTITION=y
# Native language support
CONFIG_NLS=y
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_UTF8=m
### Kernel hacking
CONFIG_FRAME_WARN=8096
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_PROVE_LOCKING=n
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_FRAME_POINTER=y
CONFIG_DEBUG_LL=y
include include/asm-generic/Kbuild.asm
/*
* linux/arch/unicore32/include/asm/assembler.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Do not include any C declarations in this file - it is included by
* assembler source.
*/
#ifndef __ASSEMBLY__
#error "Only include this from assembly code"
#endif
#include <asm/ptrace.h>
/*
* Little Endian independent macros for shifting bytes within registers.
*/
#define pull >>
#define push <<
#define get_byte_0 << #0
#define get_byte_1 >> #8
#define get_byte_2 >> #16
#define get_byte_3 >> #24
#define put_byte_0 << #0
#define put_byte_1 << #8
#define put_byte_2 << #16
#define put_byte_3 << #24
#define cadd cmpadd
#define cand cmpand
#define csub cmpsub
#define cxor cmpxor
/*
* Enable and disable interrupts
*/
.macro disable_irq, temp
mov \temp, asr
andn \temp, \temp, #0xFF
or \temp, \temp, #PSR_I_BIT | PRIV_MODE
mov.a asr, \temp
.endm
.macro enable_irq, temp
mov \temp, asr
andn \temp, \temp, #0xFF
or \temp, \temp, #PRIV_MODE
mov.a asr, \temp
.endm
#define USER(x...) \
9999: x; \
.pushsection __ex_table, "a"; \
.align 3; \
.long 9999b, 9001f; \
.popsection
.macro notcond, cond, nexti = .+8
.ifc \cond, eq
bne \nexti
.else; .ifc \cond, ne
beq \nexti
.else; .ifc \cond, ea
bub \nexti
.else; .ifc \cond, ub
bea \nexti
.else; .ifc \cond, fs
bns \nexti
.else; .ifc \cond, ns
bfs \nexti
.else; .ifc \cond, fv
bnv \nexti
.else; .ifc \cond, nv
bfv \nexti
.else; .ifc \cond, ua
beb \nexti
.else; .ifc \cond, eb
bua \nexti
.else; .ifc \cond, eg
bsl \nexti
.else; .ifc \cond, sl
beg \nexti
.else; .ifc \cond, sg
bel \nexti
.else; .ifc \cond, el
bsg \nexti
.else; .ifnc \cond, al
.error "Unknown cond in notcond macro argument"
.endif; .endif; .endif; .endif; .endif; .endif; .endif
.endif; .endif; .endif; .endif; .endif; .endif; .endif
.endif
.endm
.macro usracc, instr, reg, ptr, inc, cond, rept, abort
.rept \rept
notcond \cond, .+8
9999 :
.if \inc == 1
\instr\()b.u \reg, [\ptr], #\inc
.elseif \inc == 4
\instr\()w.u \reg, [\ptr], #\inc
.else
.error "Unsupported inc macro argument"
.endif
.pushsection __ex_table, "a"
.align 3
.long 9999b, \abort
.popsection
.endr
.endm
.macro strusr, reg, ptr, inc, cond = al, rept = 1, abort = 9001f
usracc st, \reg, \ptr, \inc, \cond, \rept, \abort
.endm
.macro ldrusr, reg, ptr, inc, cond = al, rept = 1, abort = 9001f
usracc ld, \reg, \ptr, \inc, \cond, \rept, \abort
.endm
.macro nop8
.rept 8
nop
.endr
.endm
/*
* linux/arch/unicore32/include/asm/bitops.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_BITOPS_H__
#define __UNICORE_BITOPS_H__
#define find_next_bit __uc32_find_next_bit
#define find_next_zero_bit __uc32_find_next_zero_bit
#define find_first_bit __uc32_find_first_bit
#define find_first_zero_bit __uc32_find_first_zero_bit
#define _ASM_GENERIC_BITOPS_FLS_H_
#define _ASM_GENERIC_BITOPS___FLS_H_
#define _ASM_GENERIC_BITOPS_FFS_H_
#define _ASM_GENERIC_BITOPS___FFS_H_
/*
* On UNICORE, those functions can be implemented around
* the cntlz instruction for much better code efficiency.
*/
static inline int fls(int x)
{
int ret;
asm("cntlz\t%0, %1" : "=r" (ret) : "r" (x) : "cc");
ret = 32 - ret;
return ret;
}
#define __fls(x) (fls(x) - 1)
#define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); })
#define __ffs(x) (ffs(x) - 1)
#include <asm-generic/bitops.h>
#endif /* __UNICORE_BITOPS_H__ */
/*
* linux/arch/unicore32/include/asm/byteorder.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* UniCore ONLY support Little Endian mode, the data bus is connected such
* that byte accesses appear as:
* 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31
* and word accesses (data or instruction) appear as:
* d0...d31
*/
#ifndef __UNICORE_BYTEORDER_H__
#define __UNICORE_BYTEORDER_H__
#include <linux/byteorder/little_endian.h>
#endif
/*
* linux/arch/unicore32/include/asm/cache.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_CACHE_H__
#define __UNICORE_CACHE_H__
#define L1_CACHE_SHIFT (5)
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
/*
* Memory returned by kmalloc() may be used for DMA, so we must make
* sure that all such allocations are cache aligned. Otherwise,
* unrelated code may cause parts of the buffer to be read into the
* cache before the transfer is done, causing old data to be seen by
* the CPU.
*/
#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
#endif
/*
* linux/arch/unicore32/include/asm/cacheflush.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_CACHEFLUSH_H__
#define __UNICORE_CACHEFLUSH_H__
#include <linux/mm.h>
#include <asm/shmparam.h>
#define CACHE_COLOUR(vaddr) ((vaddr & (SHMLBA - 1)) >> PAGE_SHIFT)
/*
* This flag is used to indicate that the page pointed to by a pte is clean
* and does not require cleaning before returning it to the user.
*/
#define PG_dcache_clean PG_arch_1
/*
* MM Cache Management
* ===================
*
* The arch/unicore32/mm/cache.S files implement these methods.
*
* Start addresses are inclusive and end addresses are exclusive;
* start addresses should be rounded down, end addresses up.
*
* See Documentation/cachetlb.txt for more information.
* Please note that the implementation of these, and the required
* effects are cache-type (VIVT/VIPT/PIPT) specific.
*
* flush_icache_all()
*
* Unconditionally clean and invalidate the entire icache.
* Currently only needed for cache-v6.S and cache-v7.S, see
* __flush_icache_all for the generic implementation.
*
* flush_kern_all()
*
* Unconditionally clean and invalidate the entire cache.
*
* flush_user_all()
*
* Clean and invalidate all user space cache entries
* before a change of page tables.
*
* flush_user_range(start, end, flags)
*
* Clean and invalidate a range of cache entries in the
* specified address space before a change of page tables.
* - start - user start address (inclusive, page aligned)
* - end - user end address (exclusive, page aligned)
* - flags - vma->vm_flags field
*
* coherent_kern_range(start, end)
*
* Ensure coherency between the Icache and the Dcache in the
* region described by start, end. If you have non-snooping
* Harvard caches, you need to implement this function.
* - start - virtual start address
* - end - virtual end address
*
* coherent_user_range(start, end)
*
* Ensure coherency between the Icache and the Dcache in the
* region described by start, end. If you have non-snooping
* Harvard caches, you need to implement this function.
* - start - virtual start address
* - end - virtual end address
*
* flush_kern_dcache_area(kaddr, size)
*
* Ensure that the data held in page is written back.
* - kaddr - page address
* - size - region size
*
* DMA Cache Coherency
* ===================
*
* dma_flush_range(start, end)
*
* Clean and invalidate the specified virtual address range.
* - start - virtual start address
* - end - virtual end address
*/
extern void __cpuc_flush_icache_all(void);
extern void __cpuc_flush_kern_all(void);
extern void __cpuc_flush_user_all(void);
extern void __cpuc_flush_user_range(unsigned long, unsigned long, unsigned int);
extern void __cpuc_coherent_kern_range(unsigned long, unsigned long);
extern void __cpuc_coherent_user_range(unsigned long, unsigned long);
extern void __cpuc_flush_dcache_area(void *, size_t);
extern void __cpuc_flush_kern_dcache_area(void *addr, size_t size);
/*
* These are private to the dma-mapping API. Do not use directly.
* Their sole purpose is to ensure that data held in the cache
* is visible to DMA, or data written by DMA to system memory is
* visible to the CPU.
*/
extern void __cpuc_dma_clean_range(unsigned long, unsigned long);
extern void __cpuc_dma_flush_range(unsigned long, unsigned long);
/*
* Copy user data from/to a page which is mapped into a different
* processes address space. Really, we want to allow our "user
* space" model to handle this.
*/
extern void copy_to_user_page(struct vm_area_struct *, struct page *,
unsigned long, void *, const void *, unsigned long);
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
do { \
memcpy(dst, src, len); \
} while (0)
/*
* Convert calls to our calling convention.
*/
/* Invalidate I-cache */
static inline void __flush_icache_all(void)
{
asm("movc p0.c5, %0, #20;\n"
"nop; nop; nop; nop; nop; nop; nop; nop\n"
:
: "r" (0));
}
#define flush_cache_all() __cpuc_flush_kern_all()
extern void flush_cache_mm(struct mm_struct *mm);
extern void flush_cache_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
extern void flush_cache_page(struct vm_area_struct *vma,
unsigned long user_addr, unsigned long pfn);
#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
/*
* flush_cache_user_range is used when we want to ensure that the
* Harvard caches are synchronised for the user space address range.
* This is used for the UniCore private sys_cacheflush system call.
*/
#define flush_cache_user_range(vma, start, end) \
__cpuc_coherent_user_range((start) & PAGE_MASK, PAGE_ALIGN(end))
/*
* Perform necessary cache operations to ensure that data previously
* stored within this range of addresses can be executed by the CPU.
*/
#define flush_icache_range(s, e) __cpuc_coherent_kern_range(s, e)
/*
* Perform necessary cache operations to ensure that the TLB will
* see data written in the specified area.
*/
#define clean_dcache_area(start, size) cpu_dcache_clean_area(start, size)
/*
* flush_dcache_page is used when the kernel has written to the page
* cache page at virtual address page->virtual.
*
* If this page isn't mapped (ie, page_mapping == NULL), or it might
* have userspace mappings, then we _must_ always clean + invalidate
* the dcache entries associated with the kernel mapping.
*
* Otherwise we can defer the operation, and clean the cache when we are
* about to change to user space. This is the same method as used on SPARC64.
* See update_mmu_cache for the user space part.
*/
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
extern void flush_dcache_page(struct page *);
#define flush_dcache_mmap_lock(mapping) \
spin_lock_irq(&(mapping)->tree_lock)
#define flush_dcache_mmap_unlock(mapping) \
spin_unlock_irq(&(mapping)->tree_lock)
#define flush_icache_user_range(vma, page, addr, len) \
flush_dcache_page(page)
/*
* We don't appear to need to do anything here. In fact, if we did, we'd
* duplicate cache flushing elsewhere performed by flush_dcache_page().
*/
#define flush_icache_page(vma, page) do { } while (0)
/*
* flush_cache_vmap() is used when creating mappings (eg, via vmap,
* vmalloc, ioremap etc) in kernel space for pages. On non-VIPT
* caches, since the direct-mappings of these pages may contain cached
* data, we need to do a full cache flush to ensure that writebacks
* don't corrupt data placed into these pages via the new mappings.
*/
static inline void flush_cache_vmap(unsigned long start, unsigned long end)
{
}
static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
{
}
#endif
/*
* linux/arch/unicore32/include/asm/checksum.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* IP checksum routines
*/
#ifndef __UNICORE_CHECKSUM_H__
#define __UNICORE_CHECKSUM_H__
/*
* computes the checksum of the TCP/UDP pseudo-header
* returns a 16-bit checksum, already complemented
*/
static inline __wsum
csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
unsigned short proto, __wsum sum)
{
__asm__(
"add.a %0, %1, %2\n"
"addc.a %0, %0, %3\n"
"addc.a %0, %0, %4 << #8\n"
"addc.a %0, %0, %5\n"
"addc %0, %0, #0\n"
: "=&r"(sum)
: "r" (sum), "r" (daddr), "r" (saddr), "r" (len), "Ir" (htons(proto))
: "cc");
return sum;
}
#define csum_tcpudp_nofold csum_tcpudp_nofold
#include <asm-generic/checksum.h>
#endif
/*
* linux/arch/unicore32/include/asm/cpu-single.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_CPU_SINGLE_H__
#define __UNICORE_CPU_SINGLE_H__
#include <asm/page.h>
#include <asm/memory.h>
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#define cpu_switch_mm(pgd, mm) cpu_do_switch_mm(virt_to_phys(pgd), mm)
#define cpu_get_pgd() \
({ \
unsigned long pg; \
__asm__("movc %0, p0.c2, #0" \
: "=r" (pg) : : "cc"); \
pg &= ~0x0fff; \
(pgd_t *)phys_to_virt(pg); \
})
struct mm_struct;
/* declare all the functions as extern */
extern void cpu_proc_fin(void);
extern int cpu_do_idle(void);
extern void cpu_dcache_clean_area(void *, int);
extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
extern void cpu_set_pte(pte_t *ptep, pte_t pte);
extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* __UNICORE_CPU_SINGLE_H__ */
/*
* linux/arch/unicore32/include/asm/cputype.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_CPUTYPE_H__
#define __UNICORE_CPUTYPE_H__
#include <linux/stringify.h>
#define CPUID_CPUID 0
#define CPUID_CACHETYPE 1
#define read_cpuid(reg) \
({ \
unsigned int __val; \
asm("movc %0, p0.c0, #" __stringify(reg) \
: "=r" (__val) \
: \
: "cc"); \
__val; \
})
#define uc32_cpuid read_cpuid(CPUID_CPUID)
#define uc32_cachetype read_cpuid(CPUID_CACHETYPE)
#endif
/*
* linux/arch/unicore32/include/asm/delay.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Delay routines, using a pre-computed "loops_per_second" value.
*/
#ifndef __UNICORE_DELAY_H__
#define __UNICORE_DELAY_H__
#include <asm/param.h> /* HZ */
extern void __delay(int loops);
/*
* This function intentionally does not exist; if you see references to
* it, it means that you're calling udelay() with an out of range value.
*
* With currently imposed limits, this means that we support a max delay
* of 2000us. Further limits: HZ<=1000 and bogomips<=3355
*/
extern void __bad_udelay(void);
/*
* division by multiplication: you don't have to worry about
* loss of precision.
*
* Use only for very small delays ( < 1 msec). Should probably use a
* lookup table, really, as the multiplications take much too long with
* short delays. This is a "reasonable" implementation, though (and the
* first constant multiplications gets optimized away if the delay is
* a constant)
*/
extern void __udelay(unsigned long usecs);
extern void __const_udelay(unsigned long);
#define MAX_UDELAY_MS 2
#define udelay(n) \
(__builtin_constant_p(n) ? \
((n) > (MAX_UDELAY_MS * 1000) ? __bad_udelay() : \
__const_udelay((n) * ((2199023U*HZ)>>11))) : \
__udelay(n))
#endif /* __UNICORE_DELAY_H__ */
/*
* linux/arch/unicore32/include/asm/dma-mapping.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_DMA_MAPPING_H__
#define __UNICORE_DMA_MAPPING_H__
#ifdef __KERNEL__
#include <linux/mm_types.h>
#include <linux/scatterlist.h>
#include <linux/swiotlb.h>
#include <asm-generic/dma-coherent.h>
#include <asm/memory.h>
#include <asm/cacheflush.h>
extern struct dma_map_ops swiotlb_dma_map_ops;
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &swiotlb_dma_map_ops;
}
static inline int dma_supported(struct device *dev, u64 mask)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
if (unlikely(dma_ops == NULL))
return 0;
return dma_ops->dma_supported(dev, mask);
}
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
if (dma_ops->mapping_error)
return dma_ops->mapping_error(dev, dma_addr);
return 0;
}
#include <asm-generic/dma-mapping-common.h>
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (dev && dev->dma_mask)
return addr + size - 1 <= *dev->dma_mask;
return 1;
}
static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
return paddr;
}
static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
return daddr;
}
static inline void dma_mark_clean(void *addr, size_t size) {}
static inline int dma_set_mask(struct device *dev, u64 dma_mask)
{
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;
*dev->dma_mask = dma_mask;
return 0;
}
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
}
static inline void dma_free_coherent(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_handle)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
}
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
static inline void dma_cache_sync(struct device *dev, void *vaddr,
size_t size, enum dma_data_direction direction)
{
unsigned long start = (unsigned long)vaddr;
unsigned long end = start + size;
switch (direction) {
case DMA_NONE:
BUG();
case DMA_FROM_DEVICE:
case DMA_BIDIRECTIONAL: /* writeback and invalidate */
__cpuc_dma_flush_range(start, end);
break;
case DMA_TO_DEVICE: /* writeback only */
__cpuc_dma_clean_range(start, end);
break;
}
}
#endif /* __KERNEL__ */
#endif
/*
* linux/arch/unicore32/include/asm/dma.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_DMA_H__
#define __UNICORE_DMA_H__
#include <asm/memory.h>
#include <asm-generic/dma.h>
#ifdef CONFIG_PCI
extern int isa_dma_bridge_buggy;
#endif
#endif /* __UNICORE_DMA_H__ */
/*
* linux/arch/unicore32/include/asm/elf.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_ELF_H__
#define __UNICORE_ELF_H__
#include <asm/hwcap.h>
/*
* ELF register definitions..
*/
#include <asm/ptrace.h>
typedef unsigned long elf_greg_t;
typedef unsigned long elf_freg_t[3];
#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct fp_state elf_fpregset_t;
#define EM_UNICORE 110
#define R_UNICORE_NONE 0
#define R_UNICORE_PC24 1
#define R_UNICORE_ABS32 2
#define R_UNICORE_CALL 28
#define R_UNICORE_JUMP24 29
/*
* These are used to set parameters in the core dumps.
*/
#define ELF_CLASS ELFCLASS32
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_UNICORE
/*
* This yields a string that ld.so will use to load implementation
* specific libraries for optimization. This is more specific in
* intent than poking at uname or /proc/cpuinfo.
*
*/
#define ELF_PLATFORM_SIZE 8
#define ELF_PLATFORM (elf_platform)
extern char elf_platform[];
struct elf32_hdr;
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
extern int elf_check_arch(const struct elf32_hdr *);
#define elf_check_arch elf_check_arch
struct task_struct;
int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
#define ELF_CORE_COPY_TASK_REGS dump_task_regs
#define ELF_EXEC_PAGESIZE 4096
/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
use of this is to invoke "./ld.so someprog" to test out a new version of
the loader. We need to make sure that it is out of the way of the program
that it will "exec", and that there is sufficient room for the brk. */
#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
/* When the program starts, a1 contains a pointer to a function to be
registered with atexit, as per the SVR4 ABI. A value of 0 means we
have no such handler. */
#define ELF_PLAT_INIT(_r, load_addr) {(_r)->UCreg_00 = 0; }
extern void elf_set_personality(const struct elf32_hdr *);
#define SET_PERSONALITY(ex) elf_set_personality(&(ex))
struct mm_struct;
extern unsigned long arch_randomize_brk(struct mm_struct *mm);
#define arch_randomize_brk arch_randomize_brk
extern int vectors_user_mapping(void);
#define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping()
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
#endif
/*
* linux/arch/unicore32/include/asm/fpstate.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_FPSTATE_H__
#define __UNICORE_FPSTATE_H__
#ifndef __ASSEMBLY__
#define FP_REGS_NUMBER 33
struct fp_state {
unsigned int regs[FP_REGS_NUMBER];
} __attribute__((aligned(8)));
#endif
#endif
/*
* linux/arch/unicore32/include/asm/fpu-ucf64.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
* Copyright (C) 2001-2010 Guan Xuetao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#define FPSCR s31
/* FPSCR bits */
#define FPSCR_DEFAULT_NAN (1<<25)
#define FPSCR_CMPINSTR_BIT (1<<31)
#define FPSCR_CON (1<<29)
#define FPSCR_TRAP (1<<27)
/* RND mode */
#define FPSCR_ROUND_NEAREST (0<<0)
#define FPSCR_ROUND_PLUSINF (2<<0)
#define FPSCR_ROUND_MINUSINF (3<<0)
#define FPSCR_ROUND_TOZERO (1<<0)
#define FPSCR_RMODE_BIT (0)
#define FPSCR_RMODE_MASK (7 << FPSCR_RMODE_BIT)
/* trap enable */
#define FPSCR_IOE (1<<16)
#define FPSCR_OFE (1<<14)
#define FPSCR_UFE (1<<13)
#define FPSCR_IXE (1<<12)
#define FPSCR_HIE (1<<11)
#define FPSCR_NDE (1<<10) /* non denomal */
/* flags */
#define FPSCR_IDC (1<<24)
#define FPSCR_HIC (1<<23)
#define FPSCR_IXC (1<<22)
#define FPSCR_OFC (1<<21)
#define FPSCR_UFC (1<<20)
#define FPSCR_IOC (1<<19)
/* stick bits */
#define FPSCR_IOS (1<<9)
#define FPSCR_OFS (1<<7)
#define FPSCR_UFS (1<<6)
#define FPSCR_IXS (1<<5)
#define FPSCR_HIS (1<<4)
#define FPSCR_NDS (1<<3) /*non denomal */
/*
* linux/arch/unicore32/include/asm/futex.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_FUTEX_H__
#define __UNICORE_FUTEX_H__
#ifdef __KERNEL__
#include <linux/futex.h>
#include <linux/preempt.h>
#include <linux/uaccess.h>
#include <linux/errno.h>
#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
__asm__ __volatile__( \
"1: ldw.u %1, [%2]\n" \
" " insn "\n" \
"2: stw.u %0, [%2]\n" \
" mov %0, #0\n" \
"3:\n" \
" .pushsection __ex_table,\"a\"\n" \
" .align 3\n" \
" .long 1b, 4f, 2b, 4f\n" \
" .popsection\n" \
" .pushsection .fixup,\"ax\"\n" \
"4: mov %0, %4\n" \
" b 3b\n" \
" .popsection" \
: "=&r" (ret), "=&r" (oldval) \
: "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \
: "cc", "memory")
static inline int
futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
{
int op = (encoded_op >> 28) & 7;
int cmp = (encoded_op >> 24) & 15;
int oparg = (encoded_op << 8) >> 20;
int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
oparg = 1 << oparg;
if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
return -EFAULT;
pagefault_disable(); /* implies preempt_disable() */
switch (op) {
case FUTEX_OP_SET:
__futex_atomic_op("mov %0, %3", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ADD:
__futex_atomic_op("add %0, %1, %3", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_OR:
__futex_atomic_op("or %0, %1, %3", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ANDN:
__futex_atomic_op("and %0, %1, %3",
ret, oldval, uaddr, ~oparg);
break;
case FUTEX_OP_XOR:
__futex_atomic_op("xor %0, %1, %3", ret, oldval, uaddr, oparg);
break;
default:
ret = -ENOSYS;
}
pagefault_enable(); /* subsumes preempt_enable() */
if (!ret) {
switch (cmp) {
case FUTEX_OP_CMP_EQ:
ret = (oldval == cmparg);
break;
case FUTEX_OP_CMP_NE:
ret = (oldval != cmparg);
break;
case FUTEX_OP_CMP_LT:
ret = (oldval < cmparg);
break;
case FUTEX_OP_CMP_GE:
ret = (oldval >= cmparg);
break;
case FUTEX_OP_CMP_LE:
ret = (oldval <= cmparg);
break;
case FUTEX_OP_CMP_GT:
ret = (oldval > cmparg);
break;
default:
ret = -ENOSYS;
}
}
return ret;
}
static inline int
futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
{
int val;
if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
return -EFAULT;
pagefault_disable(); /* implies preempt_disable() */
__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
"1: ldw.u %0, [%3]\n"
" cmpxor.a %0, %1\n"
" bne 3f\n"
"2: stw.u %2, [%3]\n"
"3:\n"
" .pushsection __ex_table,\"a\"\n"
" .align 3\n"
" .long 1b, 4f, 2b, 4f\n"
" .popsection\n"
" .pushsection .fixup,\"ax\"\n"
"4: mov %0, %4\n"
" b 3b\n"
" .popsection"
: "=&r" (val)
: "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
: "cc", "memory");
pagefault_enable(); /* subsumes preempt_enable() */
return val;
}
#endif /* __KERNEL__ */
#endif /* __UNICORE_FUTEX_H__ */
/*
* linux/arch/unicore32/include/asm/gpio.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_GPIO_H__
#define __UNICORE_GPIO_H__
#include <linux/io.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <asm-generic/gpio.h>
#define GPI_OTP_INT 0
#define GPI_PCI_INTA 1
#define GPI_PCI_INTB 2
#define GPI_PCI_INTC 3
#define GPI_PCI_INTD 4
#define GPI_BAT_DET 5
#define GPI_SD_CD 6
#define GPI_SOFF_REQ 7
#define GPI_SD_WP 8
#define GPI_LCD_CASE_OFF 9
#define GPO_WIFI_EN 10
#define GPO_HDD_LED 11
#define GPO_VGA_EN 12
#define GPO_LCD_EN 13
#define GPO_LED_DATA 14
#define GPO_LED_CLK 15
#define GPO_CAM_PWR_EN 16
#define GPO_LCD_VCC_EN 17
#define GPO_SOFT_OFF 18
#define GPO_BT_EN 19
#define GPO_FAN_ON 20
#define GPO_SPKR 21
#define GPO_SET_V1 23
#define GPO_SET_V2 24
#define GPO_CPU_HEALTH 25
#define GPO_LAN_SEL 26
#ifdef CONFIG_PUV3_NB0916
#define GPI_BTN_TOUCH 14
#define GPIO_IN 0x000043ff /* 1 for input */
#define GPIO_OUT 0x0fffbc00 /* 1 for output */
#endif /* CONFIG_PUV3_NB0916 */
#ifdef CONFIG_PUV3_SMW0919
#define GPIO_IN 0x000003ff /* 1 for input */
#define GPIO_OUT 0x0ffffc00 /* 1 for output */
#endif /* CONFIG_PUV3_SMW0919 */
#ifdef CONFIG_PUV3_DB0913
#define GPIO_IN 0x000001df /* 1 for input */
#define GPIO_OUT 0x03fee800 /* 1 for output */
#endif /* CONFIG_PUV3_DB0913 */
#define GPIO_DIR (~((GPIO_IN) | 0xf0000000))
/* 0 input, 1 output */
static inline int gpio_get_value(unsigned gpio)
{
if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
return readl(GPIO_GPLR) & GPIO_GPIO(gpio);
else
return __gpio_get_value(gpio);
}
static inline void gpio_set_value(unsigned gpio, int value)
{
if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
if (value)
writel(GPIO_GPIO(gpio), GPIO_GPSR);
else
writel(GPIO_GPIO(gpio), GPIO_GPCR);
else
__gpio_set_value(gpio, value);
}
#define gpio_cansleep __gpio_cansleep
static inline unsigned gpio_to_irq(unsigned gpio)
{
if ((gpio < IRQ_GPIOHIGH) && (FIELD(1, 1, gpio) & readl(GPIO_GPIR)))
return IRQ_GPIOLOW0 + gpio;
else
return IRQ_GPIO0 + gpio;
}
static inline unsigned irq_to_gpio(unsigned irq)
{
if (irq < IRQ_GPIOHIGH)
return irq - IRQ_GPIOLOW0;
else
return irq - IRQ_GPIO0;
}
#endif /* __UNICORE_GPIO_H__ */
/*
* linux/arch/unicore32/include/asm/hwcap.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_HWCAP_H__
#define __UNICORE_HWCAP_H__
/*
* HWCAP flags
*/
#define HWCAP_MSP 1
#define HWCAP_UNICORE16 2
#define HWCAP_CMOV 4
#define HWCAP_UNICORE_F64 8
#define HWCAP_TLS 0x80
#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
/*
* This yields a mask that user programs can use to figure out what
* instruction set this cpu supports.
*/
#define ELF_HWCAP (HWCAP_CMOV | HWCAP_UNICORE_F64)
#endif
#endif
/*
* linux/arch/unicore32/include/asm/io.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_IO_H__
#define __UNICORE_IO_H__
#ifdef __KERNEL__
#include <asm/byteorder.h>
#include <asm/memory.h>
#include <asm/system.h>
#define PCI_IOBASE PKUNITY_PCILIO_BASE
#include <asm-generic/io.h>
/*
* __uc32_ioremap and __uc32_ioremap_cached takes CPU physical address.
*/
extern void __iomem *__uc32_ioremap(unsigned long, size_t);
extern void __iomem *__uc32_ioremap_cached(unsigned long, size_t);
extern void __uc32_iounmap(volatile void __iomem *addr);
/*
* ioremap and friends.
*
* ioremap takes a PCI memory address, as specified in
* Documentation/IO-mapping.txt.
*
*/
#define ioremap(cookie, size) __uc32_ioremap(cookie, size)
#define ioremap_cached(cookie, size) __uc32_ioremap_cached(cookie, size)
#define iounmap(cookie) __uc32_iounmap(cookie)
/*
* Convert a physical pointer to a virtual kernel pointer for /dev/mem
* access
*/
#undef xlate_dev_mem_ptr
#define xlate_dev_mem_ptr(p) __va(p)
#define HAVE_ARCH_PIO_SIZE
#define PIO_OFFSET (unsigned int)(PCI_IOBASE)
#define PIO_MASK (unsigned int)(IO_SPACE_LIMIT)
#define PIO_RESERVED (PIO_OFFSET + PIO_MASK + 1)
#endif /* __KERNEL__ */
#endif /* __UNICORE_IO_H__ */
/*
* linux/arch/unicore32/include/asm/irq.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_IRQ_H__
#define __UNICORE_IRQ_H__
#include <asm-generic/irq.h>
#define IRQ_GPIOLOW0 0x00
#define IRQ_GPIOLOW1 0x01
#define IRQ_GPIOLOW2 0x02
#define IRQ_GPIOLOW3 0x03
#define IRQ_GPIOLOW4 0x04
#define IRQ_GPIOLOW5 0x05
#define IRQ_GPIOLOW6 0x06
#define IRQ_GPIOLOW7 0x07
#define IRQ_GPIOHIGH 0x08
#define IRQ_USB 0x09
#define IRQ_SDC 0x0a
#define IRQ_AC97 0x0b
#define IRQ_SATA 0x0c
#define IRQ_MME 0x0d
#define IRQ_PCI_BRIDGE 0x0e
#define IRQ_DDR 0x0f
#define IRQ_SPI 0x10
#define IRQ_UNIGFX 0x11
#define IRQ_I2C 0x11
#define IRQ_UART1 0x12
#define IRQ_UART0 0x13
#define IRQ_UMAL 0x14
#define IRQ_NAND 0x15
#define IRQ_PS2_KBD 0x16
#define IRQ_PS2_AUX 0x17
#define IRQ_DMA 0x18
#define IRQ_DMAERR 0x19
#define IRQ_TIMER0 0x1a
#define IRQ_TIMER1 0x1b
#define IRQ_TIMER2 0x1c
#define IRQ_TIMER3 0x1d
#define IRQ_RTC 0x1e
#define IRQ_RTCAlarm 0x1f
#define IRQ_GPIO0 0x20
#define IRQ_GPIO1 0x21
#define IRQ_GPIO2 0x22
#define IRQ_GPIO3 0x23
#define IRQ_GPIO4 0x24
#define IRQ_GPIO5 0x25
#define IRQ_GPIO6 0x26
#define IRQ_GPIO7 0x27
#define IRQ_GPIO8 0x28
#define IRQ_GPIO9 0x29
#define IRQ_GPIO10 0x2a
#define IRQ_GPIO11 0x2b
#define IRQ_GPIO12 0x2c
#define IRQ_GPIO13 0x2d
#define IRQ_GPIO14 0x2e
#define IRQ_GPIO15 0x2f
#define IRQ_GPIO16 0x30
#define IRQ_GPIO17 0x31
#define IRQ_GPIO18 0x32
#define IRQ_GPIO19 0x33
#define IRQ_GPIO20 0x34
#define IRQ_GPIO21 0x35
#define IRQ_GPIO22 0x36
#define IRQ_GPIO23 0x37
#define IRQ_GPIO24 0x38
#define IRQ_GPIO25 0x39
#define IRQ_GPIO26 0x3a
#define IRQ_GPIO27 0x3b
#ifdef CONFIG_ARCH_FPGA
#define IRQ_PCIINTA IRQ_GPIOLOW2
#define IRQ_PCIINTB IRQ_GPIOLOW1
#define IRQ_PCIINTC IRQ_GPIOLOW0
#define IRQ_PCIINTD IRQ_GPIOLOW6
#endif
#if defined(CONFIG_PUV3_DB0913) || defined(CONFIG_PUV3_NB0916) \
|| defined(CONFIG_PUV3_SMW0919)
#define IRQ_PCIINTA IRQ_GPIOLOW1
#define IRQ_PCIINTB IRQ_GPIOLOW2
#define IRQ_PCIINTC IRQ_GPIOLOW3
#define IRQ_PCIINTD IRQ_GPIOLOW4
#endif
#define IRQ_SD_CD IRQ_GPIO6 /* falling or rising trigger */
#ifndef __ASSEMBLY__
struct pt_regs;
extern void asm_do_IRQ(unsigned int, struct pt_regs *);
#endif
#endif
/*
* linux/arch/unicore32/include/asm/irqflags.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_IRQFLAGS_H__
#define __UNICORE_IRQFLAGS_H__
#ifdef __KERNEL__
#include <asm/ptrace.h>
#define ARCH_IRQ_DISABLED (PRIV_MODE | PSR_I_BIT)
#define ARCH_IRQ_ENABLED (PRIV_MODE)
/*
* Save the current interrupt enable state.
*/
static inline unsigned long arch_local_save_flags(void)
{
unsigned long temp;
asm volatile("mov %0, asr" : "=r" (temp) : : "memory", "cc");
return temp & PSR_c;
}
/*
* restore saved IRQ state
*/
static inline void arch_local_irq_restore(unsigned long flags)
{
unsigned long temp;
asm volatile(
"mov %0, asr\n"
"mov.a asr, %1\n"
"mov.f asr, %0"
: "=&r" (temp)
: "r" (flags)
: "memory", "cc");
}
#include <asm-generic/irqflags.h>
#endif
#endif
/*
* linux/arch/unicore32/include/asm/linkage.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_LINKAGE_H__
#define __UNICORE_LINKAGE_H__
#define __ALIGN .align 0
#define __ALIGN_STR ".align 0"
#define ENDPROC(name) \
.type name, %function; \
END(name)
#endif
/*
* linux/arch/unicore32/include/asm/memblock.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_MEMBLOCK_H__
#define __UNICORE_MEMBLOCK_H__
/*
* Memory map description
*/
# define NR_BANKS 8
struct membank {
unsigned long start;
unsigned long size;
unsigned int highmem;
};
struct meminfo {
int nr_banks;
struct membank bank[NR_BANKS];
};
extern struct meminfo meminfo;
#define for_each_bank(iter, mi) \
for (iter = 0; iter < (mi)->nr_banks; iter++)
#define bank_pfn_start(bank) __phys_to_pfn((bank)->start)
#define bank_pfn_end(bank) __phys_to_pfn((bank)->start + (bank)->size)
#define bank_pfn_size(bank) ((bank)->size >> PAGE_SHIFT)
#define bank_phys_start(bank) ((bank)->start)
#define bank_phys_end(bank) ((bank)->start + (bank)->size)
#define bank_phys_size(bank) ((bank)->size)
extern void uc32_memblock_init(struct meminfo *);
#endif
/*
* linux/arch/unicore32/include/asm/memory.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Note: this file should not be included by non-asm/.h files
*/
#ifndef __UNICORE_MEMORY_H__
#define __UNICORE_MEMORY_H__
#include <linux/compiler.h>
#include <linux/const.h>
#include <asm/sizes.h>
#include <mach/memory.h>
/*
* Allow for constants defined here to be used from assembly code
* by prepending the UL suffix only with actual C code compilation.
*/
#define UL(x) _AC(x, UL)
/*
* PAGE_OFFSET - the virtual address of the start of the kernel image
* TASK_SIZE - the maximum size of a user space task.
* TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area
*/
#define PAGE_OFFSET UL(0xC0000000)
#define TASK_SIZE (PAGE_OFFSET - UL(0x41000000))
#define TASK_UNMAPPED_BASE (PAGE_OFFSET / 3)
/*
* The module space lives between the addresses given by TASK_SIZE
* and PAGE_OFFSET - it must be within 32MB of the kernel text.
*/
#define MODULES_VADDR (PAGE_OFFSET - 16*1024*1024)
#if TASK_SIZE > MODULES_VADDR
#error Top of user space clashes with start of module space
#endif
#define MODULES_END (PAGE_OFFSET)
/*
* Allow 16MB-aligned ioremap pages
*/
#define IOREMAP_MAX_ORDER 24
/*
* Physical vs virtual RAM address space conversion. These are
* private definitions which should NOT be used outside memory.h
* files. Use virt_to_phys/phys_to_virt/__pa/__va instead.
*/
#ifndef __virt_to_phys
#define __virt_to_phys(x) ((x) - PAGE_OFFSET + PHYS_OFFSET)
#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET)
#endif
/*
* Convert a physical address to a Page Frame Number and back
*/
#define __phys_to_pfn(paddr) ((paddr) >> PAGE_SHIFT)
#define __pfn_to_phys(pfn) ((pfn) << PAGE_SHIFT)
/*
* Convert a page to/from a physical address
*/
#define page_to_phys(page) (__pfn_to_phys(page_to_pfn(page)))
#define phys_to_page(phys) (pfn_to_page(__phys_to_pfn(phys)))
#ifndef __ASSEMBLY__
#ifndef arch_adjust_zones
#define arch_adjust_zones(size, holes) do { } while (0)
#endif
/*
* PFNs are used to describe any physical page; this means
* PFN 0 == physical address 0.
*
* This is the PFN of the first RAM page in the kernel
* direct-mapped view. We assume this is the first page
* of RAM in the mem_map as well.
*/
#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
/*
* Drivers should NOT use these either.
*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
#define __va(x) ((void *)__phys_to_virt((unsigned long)(x)))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
/*
* Conversion between a struct page and a physical address.
*
* Note: when converting an unknown physical address to a
* struct page, the resulting pointer must be validated
* using VALID_PAGE(). It must return an invalid struct page
* for any physical address not corresponding to a system
* RAM address.
*
* page_to_pfn(page) convert a struct page * to a PFN number
* pfn_to_page(pfn) convert a _valid_ PFN number to struct page *
*
* virt_to_page(k) convert a _valid_ virtual address to struct page *
* virt_addr_valid(k) indicates whether a virtual address is valid
*/
#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && \
(unsigned long)(kaddr) < (unsigned long)high_memory)
#endif
#include <asm-generic/memory_model.h>
#endif
/*
* linux/arch/unicore32/include/asm/mmu.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_MMU_H__
#define __UNICORE_MMU_H__
typedef unsigned long mm_context_t;
#endif
/*
* linux/arch/unicore32/include/asm/mmu_context.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_MMU_CONTEXT_H__
#define __UNICORE_MMU_CONTEXT_H__
#include <linux/compiler.h>
#include <linux/sched.h>
#include <linux/io.h>
#include <asm/cacheflush.h>
#include <asm/cpu-single.h>
#define init_new_context(tsk, mm) 0
#define destroy_context(mm) do { } while (0)
/*
* This is called when "tsk" is about to enter lazy TLB mode.
*
* mm: describes the currently active mm context
* tsk: task which is entering lazy tlb
* cpu: cpu number which is entering lazy tlb
*
* tsk->mm will be NULL
*/
static inline void
enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
}
/*
* This is the actual mm switch as far as the scheduler
* is concerned. No registers are touched. We avoid
* calling the CPU specific function when the mm hasn't
* actually changed.
*/
static inline void
switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
unsigned int cpu = smp_processor_id();
if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) || prev != next)
cpu_switch_mm(next->pgd, next);
}
#define deactivate_mm(tsk, mm) do { } while (0)
#define activate_mm(prev, next) switch_mm(prev, next, NULL)
/*
* We are inserting a "fake" vma for the user-accessible vector page so
* gdb and friends can get to it through ptrace and /proc/<pid>/mem.
* But we also want to remove it before the generic code gets to see it
* during process exit or the unmapping of it would cause total havoc.
* (the macro is used as remove_vma() is static to mm/mmap.c)
*/
#define arch_exit_mmap(mm) \
do { \
struct vm_area_struct *high_vma = find_vma(mm, 0xffff0000); \
if (high_vma) { \
BUG_ON(high_vma->vm_next); /* it should be last */ \
if (high_vma->vm_prev) \
high_vma->vm_prev->vm_next = NULL; \
else \
mm->mmap = NULL; \
rb_erase(&high_vma->vm_rb, &mm->mm_rb); \
mm->mmap_cache = NULL; \
mm->map_count--; \
remove_vma(high_vma); \
} \
} while (0)
static inline void arch_dup_mmap(struct mm_struct *oldmm,
struct mm_struct *mm)
{
}
#endif
/*
* linux/arch/unicore32/include/asm/mutex.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* UniCore optimized mutex locking primitives
*
* Please look into asm-generic/mutex-xchg.h for a formal definition.
*/
#ifndef __UNICORE_MUTEX_H__
#define __UNICORE_MUTEX_H__
# include <asm-generic/mutex-xchg.h>
#endif
/*
* linux/arch/unicore32/include/asm/page.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_PAGE_H__
#define __UNICORE_PAGE_H__
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#ifndef __ASSEMBLY__
struct page;
struct vm_area_struct;
#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
extern void copy_page(void *to, const void *from);
#define clear_user_page(page, vaddr, pg) clear_page(page)
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
#undef STRICT_MM_TYPECHECKS
#ifdef STRICT_MM_TYPECHECKS
/*
* These are used to make use of C type-checking..
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
#define pte_val(x) ((x).pte)
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)
#define __pte(x) ((pte_t) { (x) })
#define __pgd(x) ((pgd_t) { (x) })
#define __pgprot(x) ((pgprot_t) { (x) })
#else
/*
* .. while these make it easier on the compiler
*/
typedef unsigned long pte_t;
typedef unsigned long pgd_t;
typedef unsigned long pgprot_t;
#define pte_val(x) (x)
#define pgd_val(x) (x)
#define pgprot_val(x) (x)
#define __pte(x) (x)
#define __pgd(x) (x)
#define __pgprot(x) (x)
#endif /* STRICT_MM_TYPECHECKS */
typedef struct page *pgtable_t;
extern int pfn_valid(unsigned long);
#include <asm/memory.h>
#endif /* !__ASSEMBLY__ */
#define VM_DATA_DEFAULT_FLAGS \
(VM_READ | VM_WRITE | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
#include <asm-generic/getorder.h>
#endif
/*
* linux/arch/unicore32/include/asm/pci.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_PCI_H__
#define __UNICORE_PCI_H__
#ifdef __KERNEL__
#include <asm-generic/pci-dma-compat.h>
#include <asm-generic/pci.h>
#include <mach/hardware.h> /* for PCIBIOS_MIN_* */
static inline void pcibios_set_master(struct pci_dev *dev)
{
/* No special bus mastering setup handling */
}
static inline void pcibios_penalize_isa_irq(int irq, int active)
{
/* We don't do dynamic PCI IRQ allocation */
}
#ifdef CONFIG_PCI
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
enum pci_dma_burst_strategy *strat,
unsigned long *strategy_parameter)
{
*strat = PCI_DMA_BURST_INFINITY;
*strategy_parameter = ~0UL;
}
#endif
#define HAVE_PCI_MMAP
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine);
#endif /* __KERNEL__ */
#endif
/*
* linux/arch/unicore32/include/asm/pgalloc.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_PGALLOC_H__
#define __UNICORE_PGALLOC_H__
#include <asm/pgtable-hwdef.h>
#include <asm/processor.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
#define check_pgt_cache() do { } while (0)
#define _PAGE_USER_TABLE (PMD_TYPE_TABLE | PMD_PRESENT)
#define _PAGE_KERNEL_TABLE (PMD_TYPE_TABLE | PMD_PRESENT)
extern pgd_t *get_pgd_slow(struct mm_struct *mm);
extern void free_pgd_slow(struct mm_struct *mm, pgd_t *pgd);
#define pgd_alloc(mm) get_pgd_slow(mm)
#define pgd_free(mm, pgd) free_pgd_slow(mm, pgd)
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO)
/*
* Allocate one PTE table.
*/
static inline pte_t *
pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
{
pte_t *pte;
pte = (pte_t *)__get_free_page(PGALLOC_GFP);
if (pte)
clean_dcache_area(pte, PTRS_PER_PTE * sizeof(pte_t));
return pte;
}
static inline pgtable_t
pte_alloc_one(struct mm_struct *mm, unsigned long addr)
{
struct page *pte;
pte = alloc_pages(PGALLOC_GFP, 0);
if (pte) {
if (!PageHighMem(pte)) {
void *page = page_address(pte);
clean_dcache_area(page, PTRS_PER_PTE * sizeof(pte_t));
}
pgtable_page_ctor(pte);
}
return pte;
}
/*
* Free one PTE table.
*/
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
if (pte)
free_page((unsigned long)pte);
}
static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
{
pgtable_page_dtor(pte);
__free_page(pte);
}
static inline void __pmd_populate(pmd_t *pmdp, unsigned long pmdval)
{
set_pmd(pmdp, __pmd(pmdval));
flush_pmd_entry(pmdp);
}
/*
* Populate the pmdp entry with a pointer to the pte. This pmd is part
* of the mm address space.
*/
static inline void
pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
{
unsigned long pte_ptr = (unsigned long)ptep;
/*
* The pmd must be loaded with the physical
* address of the PTE table
*/
__pmd_populate(pmdp, __pa(pte_ptr) | _PAGE_KERNEL_TABLE);
}
static inline void
pmd_populate(struct mm_struct *mm, pmd_t *pmdp, pgtable_t ptep)
{
__pmd_populate(pmdp,
page_to_pfn(ptep) << PAGE_SHIFT | _PAGE_USER_TABLE);
}
#define pmd_pgtable(pmd) pmd_page(pmd)
#endif
/*
* linux/arch/unicore32/include/asm/pgtable-hwdef.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_PGTABLE_HWDEF_H__
#define __UNICORE_PGTABLE_HWDEF_H__
/*
* Hardware page table definitions.
*
* + Level 1 descriptor (PMD)
* - common
*/
#define PMD_TYPE_MASK (3 << 0)
#define PMD_TYPE_TABLE (0 << 0)
/*#define PMD_TYPE_LARGE (1 << 0) */
#define PMD_TYPE_INVALID (2 << 0)
#define PMD_TYPE_SECT (3 << 0)
#define PMD_PRESENT (1 << 2)
#define PMD_YOUNG (1 << 3)
/*#define PMD_SECT_DIRTY (1 << 4) */
#define PMD_SECT_CACHEABLE (1 << 5)
#define PMD_SECT_EXEC (1 << 6)
#define PMD_SECT_WRITE (1 << 7)
#define PMD_SECT_READ (1 << 8)
/*
* + Level 2 descriptor (PTE)
* - common
*/
#define PTE_TYPE_MASK (3 << 0)
#define PTE_TYPE_SMALL (0 << 0)
#define PTE_TYPE_MIDDLE (1 << 0)
#define PTE_TYPE_LARGE (2 << 0)
#define PTE_TYPE_INVALID (3 << 0)
#define PTE_PRESENT (1 << 2)
#define PTE_FILE (1 << 3) /* only when !PRESENT */
#define PTE_YOUNG (1 << 3)
#define PTE_DIRTY (1 << 4)
#define PTE_CACHEABLE (1 << 5)
#define PTE_EXEC (1 << 6)
#define PTE_WRITE (1 << 7)
#define PTE_READ (1 << 8)
#endif
This diff is collapsed.
/*
* linux/arch/unicore32/include/asm/processor.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_PROCESSOR_H__
#define __UNICORE_PROCESSOR_H__
/*
* Default implementation of macro that returns current
* instruction pointer ("program counter").
*/
#define current_text_addr() ({ __label__ _l; _l: &&_l; })
#ifdef __KERNEL__
#include <asm/ptrace.h>
#include <asm/types.h>
#ifdef __KERNEL__
#define STACK_TOP TASK_SIZE
#define STACK_TOP_MAX TASK_SIZE
#endif
struct debug_entry {
u32 address;
u32 insn;
};
struct debug_info {
int nsaved;
struct debug_entry bp[2];
};
struct thread_struct {
/* fault info */
unsigned long address;
unsigned long trap_no;
unsigned long error_code;
/* debugging */
struct debug_info debug;
};
#define INIT_THREAD { }
#define start_thread(regs, pc, sp) \
({ \
unsigned long *stack = (unsigned long *)sp; \
set_fs(USER_DS); \
memset(regs->uregs, 0, sizeof(regs->uregs)); \
regs->UCreg_asr = USER_MODE; \
regs->UCreg_pc = pc & ~1; /* pc */ \
regs->UCreg_sp = sp; /* sp */ \
regs->UCreg_02 = stack[2]; /* r2 (envp) */ \
regs->UCreg_01 = stack[1]; /* r1 (argv) */ \
regs->UCreg_00 = stack[0]; /* r0 (argc) */ \
})
/* Forward declaration, a strange C thing */
struct task_struct;
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
/* Prepare to copy thread state - unlazy all lazy status */
#define prepare_to_copy(tsk) do { } while (0)
unsigned long get_wchan(struct task_struct *p);
#define cpu_relax() barrier()
/*
* Create a new kernel thread
*/
extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
#define task_pt_regs(p) \
((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1)
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->UCreg_pc)
#define KSTK_ESP(tsk) (task_pt_regs(tsk)->UCreg_sp)
#endif
#endif /* __UNICORE_PROCESSOR_H__ */
/*
* linux/arch/unicore32/include/asm/ptrace.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_PTRACE_H__
#define __UNICORE_PTRACE_H__
#define PTRACE_GET_THREAD_AREA 22
/*
* PSR bits
*/
#define USER_MODE 0x00000010
#define REAL_MODE 0x00000011
#define INTR_MODE 0x00000012
#define PRIV_MODE 0x00000013
#define ABRT_MODE 0x00000017
#define EXTN_MODE 0x0000001b
#define SUSR_MODE 0x0000001f
#define MODE_MASK 0x0000001f
#define PSR_R_BIT 0x00000040
#define PSR_I_BIT 0x00000080
#define PSR_V_BIT 0x10000000
#define PSR_C_BIT 0x20000000
#define PSR_Z_BIT 0x40000000
#define PSR_S_BIT 0x80000000
/*
* Groups of PSR bits
*/
#define PSR_f 0xff000000 /* Flags */
#define PSR_c 0x000000ff /* Control */
#ifndef __ASSEMBLY__
/*
* This struct defines the way the registers are stored on the
* stack during a system call. Note that sizeof(struct pt_regs)
* has to be a multiple of 8.
*/
struct pt_regs {
unsigned long uregs[34];
};
#define UCreg_asr uregs[32]
#define UCreg_pc uregs[31]
#define UCreg_lr uregs[30]
#define UCreg_sp uregs[29]
#define UCreg_ip uregs[28]
#define UCreg_fp uregs[27]
#define UCreg_26 uregs[26]
#define UCreg_25 uregs[25]
#define UCreg_24 uregs[24]
#define UCreg_23 uregs[23]
#define UCreg_22 uregs[22]
#define UCreg_21 uregs[21]
#define UCreg_20 uregs[20]
#define UCreg_19 uregs[19]
#define UCreg_18 uregs[18]
#define UCreg_17 uregs[17]
#define UCreg_16 uregs[16]
#define UCreg_15 uregs[15]
#define UCreg_14 uregs[14]
#define UCreg_13 uregs[13]
#define UCreg_12 uregs[12]
#define UCreg_11 uregs[11]
#define UCreg_10 uregs[10]
#define UCreg_09 uregs[9]
#define UCreg_08 uregs[8]
#define UCreg_07 uregs[7]
#define UCreg_06 uregs[6]
#define UCreg_05 uregs[5]
#define UCreg_04 uregs[4]
#define UCreg_03 uregs[3]
#define UCreg_02 uregs[2]
#define UCreg_01 uregs[1]
#define UCreg_00 uregs[0]
#define UCreg_ORIG_00 uregs[33]
#ifdef __KERNEL__
#define user_mode(regs) \
(processor_mode(regs) == USER_MODE)
#define processor_mode(regs) \
((regs)->UCreg_asr & MODE_MASK)
#define interrupts_enabled(regs) \
(!((regs)->UCreg_asr & PSR_I_BIT))
#define fast_interrupts_enabled(regs) \
(!((regs)->UCreg_asr & PSR_R_BIT))
/* Are the current registers suitable for user mode?
* (used to maintain security in signal handlers)
*/
static inline int valid_user_regs(struct pt_regs *regs)
{
unsigned long mode = regs->UCreg_asr & MODE_MASK;
/*
* Always clear the R (REAL) bits
*/
regs->UCreg_asr &= ~(PSR_R_BIT);
if ((regs->UCreg_asr & PSR_I_BIT) == 0) {
if (mode == USER_MODE)
return 1;
}
/*
* Force ASR to something logical...
*/
regs->UCreg_asr &= PSR_f | USER_MODE;
return 0;
}
#define instruction_pointer(regs) ((regs)->UCreg_pc)
#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
#endif
/*
* linux/arch/unicore32/include/asm/sigcontext.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_SIGCONTEXT_H__
#define __UNICORE_SIGCONTEXT_H__
#include <asm/ptrace.h>
/*
* Signal context structure - contains all info to do with the state
* before the signal handler was invoked. Note: only add new entries
* to the end of the structure.
*/
struct sigcontext {
unsigned long trap_no;
unsigned long error_code;
unsigned long oldmask;
unsigned long fault_address;
struct pt_regs regs;
};
#endif
/*
* linux/arch/unicore32/include/asm/stacktrace.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_STACKTRACE_H__
#define __UNICORE_STACKTRACE_H__
struct stackframe {
unsigned long fp;
unsigned long sp;
unsigned long lr;
unsigned long pc;
};
#ifdef CONFIG_FRAME_POINTER
extern int unwind_frame(struct stackframe *frame);
#else
#define unwind_frame(f) (-EINVAL)
#endif
extern void walk_stackframe(struct stackframe *frame,
int (*fn)(struct stackframe *, void *), void *data);
#endif /* __UNICORE_STACKTRACE_H__ */
/*
* linux/arch/unicore32/include/asm/string.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_STRING_H__
#define __UNICORE_STRING_H__
/*
* We don't do inline string functions, since the
* optimised inline asm versions are not small.
*/
#define __HAVE_ARCH_STRRCHR
extern char *strrchr(const char *s, int c);
#define __HAVE_ARCH_STRCHR
extern char *strchr(const char *s, int c);
#define __HAVE_ARCH_MEMCPY
extern void *memcpy(void *, const void *, __kernel_size_t);
#define __HAVE_ARCH_MEMMOVE
extern void *memmove(void *, const void *, __kernel_size_t);
#define __HAVE_ARCH_MEMCHR
extern void *memchr(const void *, int, __kernel_size_t);
#define __HAVE_ARCH_MEMSET
extern void *memset(void *, int, __kernel_size_t);
#endif
/*
* linux/arch/unicore32/include/asm/suspend.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_SUSPEND_H__
#define __UNICORE_SUSPEND_H__
#ifndef __ASSEMBLY__
static inline int arch_prepare_suspend(void) { return 0; }
#include <asm/ptrace.h>
struct swsusp_arch_regs {
struct cpu_context_save cpu_context; /* cpu context */
#ifdef CONFIG_UNICORE_FPU_F64
struct fp_state fpstate __attribute__((aligned(8)));
#endif
};
#endif
#endif /* __UNICORE_SUSPEND_H__ */
/*
* linux/arch/unicore32/include/asm/system.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_SYSTEM_H__
#define __UNICORE_SYSTEM_H__
#ifdef __KERNEL__
/*
* CR1 bits (CP#0 CR1)
*/
#define CR_M (1 << 0) /* MMU enable */
#define CR_A (1 << 1) /* Alignment abort enable */
#define CR_D (1 << 2) /* Dcache enable */
#define CR_I (1 << 3) /* Icache enable */
#define CR_B (1 << 4) /* Dcache write mechanism: write back */
#define CR_T (1 << 5) /* Burst enable */
#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */
#ifndef __ASSEMBLY__
#include <linux/linkage.h>
#include <linux/irqflags.h>
struct thread_info;
struct task_struct;
struct pt_regs;
void die(const char *msg, struct pt_regs *regs, int err);
struct siginfo;
void uc32_notify_die(const char *str, struct pt_regs *regs,
struct siginfo *info, unsigned long err, unsigned long trap);
void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
struct pt_regs *),
int sig, int code, const char *name);
#define xchg(ptr, x) \
((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
extern asmlinkage void __backtrace(void);
extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
struct mm_struct;
extern void show_pte(struct mm_struct *mm, unsigned long addr);
extern void __show_regs(struct pt_regs *);
extern int cpu_architecture(void);
extern void cpu_init(void);
#define vectors_high() (cr_alignment & CR_V)
#define isb() __asm__ __volatile__ ("" : : : "memory")
#define dsb() __asm__ __volatile__ ("" : : : "memory")
#define dmb() __asm__ __volatile__ ("" : : : "memory")
#define mb() barrier()
#define rmb() barrier()
#define wmb() barrier()
#define smp_mb() barrier()
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#define read_barrier_depends() do { } while (0)
#define smp_read_barrier_depends() do { } while (0)
#define set_mb(var, value) do { var = value; smp_mb(); } while (0)
#define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t");
extern unsigned long cr_no_alignment; /* defined in entry-unicore.S */
extern unsigned long cr_alignment; /* defined in entry-unicore.S */
static inline unsigned int get_cr(void)
{
unsigned int val;
asm("movc %0, p0.c1, #0" : "=r" (val) : : "cc");
return val;
}
static inline void set_cr(unsigned int val)
{
asm volatile("movc p0.c1, %0, #0 @set CR"
: : "r" (val) : "cc");
isb();
}
extern void adjust_cr(unsigned long mask, unsigned long set);
/*
* switch_to(prev, next) should switch from task `prev' to `next'
* `prev' will never be the same as `next'. schedule() itself
* contains the memory barrier to tell GCC not to cache `current'.
*/
extern struct task_struct *__switch_to(struct task_struct *,
struct thread_info *, struct thread_info *);
extern void panic(const char *fmt, ...);
#define switch_to(prev, next, last) \
do { \
last = __switch_to(prev, \
task_thread_info(prev), task_thread_info(next)); \
} while (0)
static inline unsigned long
__xchg(unsigned long x, volatile void *ptr, int size)
{
unsigned long ret;
switch (size) {
case 1:
asm volatile("@ __xchg1\n"
" swapb %0, %1, [%2]"
: "=&r" (ret)
: "r" (x), "r" (ptr)
: "memory", "cc");
break;
case 4:
asm volatile("@ __xchg4\n"
" swapw %0, %1, [%2]"
: "=&r" (ret)
: "r" (x), "r" (ptr)
: "memory", "cc");
break;
default:
panic("xchg: bad data size: ptr 0x%p, size %d\n",
ptr, size);
}
return ret;
}
#include <asm-generic/cmpxchg-local.h>
/*
* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
* them available.
*/
#define cmpxchg_local(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), \
(unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))))
#define cmpxchg64_local(ptr, o, n) \
__cmpxchg64_local_generic((ptr), (o), (n))
#include <asm-generic/cmpxchg.h>
#endif /* __ASSEMBLY__ */
#define arch_align_stack(x) (x)
#endif /* __KERNEL__ */
#endif
/*
* linux/arch/unicore32/include/asm/thread_info.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_THREAD_INFO_H__
#define __UNICORE_THREAD_INFO_H__
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <asm/fpstate.h>
#define THREAD_SIZE_ORDER 1
#define THREAD_SIZE 8192
#define THREAD_START_SP (THREAD_SIZE - 8)
#ifndef __ASSEMBLY__
struct task_struct;
struct exec_domain;
#include <asm/types.h>
typedef struct {
unsigned long seg;
} mm_segment_t;
struct cpu_context_save {
__u32 r4;
__u32 r5;
__u32 r6;
__u32 r7;
__u32 r8;
__u32 r9;
__u32 r10;
__u32 r11;
__u32 r12;
__u32 r13;
__u32 r14;
__u32 r15;
__u32 r16;
__u32 r17;
__u32 r18;
__u32 r19;
__u32 r20;
__u32 r21;
__u32 r22;
__u32 r23;
__u32 r24;
__u32 r25;
__u32 r26;
__u32 fp;
__u32 sp;
__u32 pc;
};
/*
* low level task data that entry.S needs immediate access to.
* __switch_to() assumes cpu_context follows immediately after cpu_domain.
*/
struct thread_info {
unsigned long flags; /* low level flags */
int preempt_count; /* 0 => preemptable */
/* <0 => bug */
mm_segment_t addr_limit; /* address limit */
struct task_struct *task; /* main task structure */
struct exec_domain *exec_domain; /* execution domain */
__u32 cpu; /* cpu */
struct cpu_context_save cpu_context; /* cpu context */
__u32 syscall; /* syscall number */
__u8 used_cp[16]; /* thread used copro */
#ifdef CONFIG_UNICORE_FPU_F64
struct fp_state fpstate __attribute__((aligned(8)));
#endif
struct restart_block restart_block;
};
#define INIT_THREAD_INFO(tsk) \
{ \
.task = &tsk, \
.exec_domain = &default_exec_domain, \
.flags = 0, \
.preempt_count = INIT_PREEMPT_COUNT, \
.addr_limit = KERNEL_DS, \
.restart_block = { \
.fn = do_no_restart_syscall, \
}, \
}
#define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack)
/*
* how to get the thread information struct from C
*/
static inline struct thread_info *current_thread_info(void) __attribute_const__;
static inline struct thread_info *current_thread_info(void)
{
register unsigned long sp asm ("sp");
return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
}
#define thread_saved_pc(tsk) \
((unsigned long)(task_thread_info(tsk)->cpu_context.pc))
#define thread_saved_sp(tsk) \
((unsigned long)(task_thread_info(tsk)->cpu_context.sp))
#define thread_saved_fp(tsk) \
((unsigned long)(task_thread_info(tsk)->cpu_context.fp))
#endif
/*
* We use bit 30 of the preempt_count to indicate that kernel
* preemption is occurring. See <asm/hardirq.h>.
*/
#define PREEMPT_ACTIVE 0x40000000
/*
* thread information flags:
* TIF_SYSCALL_TRACE - syscall trace active
* TIF_SIGPENDING - signal pending
* TIF_NEED_RESCHED - rescheduling necessary
* TIF_NOTIFY_RESUME - callback before returning to user
*/
#define TIF_SIGPENDING 0
#define TIF_NEED_RESCHED 1
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
#define TIF_SYSCALL_TRACE 8
#define TIF_MEMDIE 18
#define TIF_FREEZE 19
#define TIF_RESTORE_SIGMASK 20
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
/*
* Change these and you break ASM code in entry-common.S
*/
#define _TIF_WORK_MASK 0x000000ff
#endif /* __KERNEL__ */
#endif /* __UNICORE_THREAD_INFO_H__ */
/*
* linux/arch/unicore32/include/asm/timex.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_TIMEX_H__
#define __UNICORE_TIMEX_H__
#ifdef CONFIG_ARCH_FPGA
/* in FPGA, APB clock is 33M, and OST clock is 32K, */
/* so, 1M is selected for timer interrupt correctly */
#define CLOCK_TICK_RATE (32*1024)
#endif
#if defined(CONFIG_PUV3_DB0913) \
|| defined(CONFIG_PUV3_NB0916) \
|| defined(CONFIG_PUV3_SMW0919)
#define CLOCK_TICK_RATE (14318000)
#endif
#include <asm-generic/timex.h>
#endif
/*
* linux/arch/unicore32/include/asm/tlb.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_TLB_H__
#define __UNICORE_TLB_H__
#define tlb_start_vma(tlb, vma) do { } while (0)
#define tlb_end_vma(tlb, vma) do { } while (0)
#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
#define __pte_free_tlb(tlb, pte, addr) \
do { \
pgtable_page_dtor(pte); \
tlb_remove_page((tlb), (pte)); \
} while (0)
#include <asm-generic/tlb.h>
#endif
/*
* linux/arch/unicore32/include/asm/tlbflush.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_TLBFLUSH_H__
#define __UNICORE_TLBFLUSH_H__
#ifndef __ASSEMBLY__
#include <linux/sched.h>
extern void __cpu_flush_user_tlb_range(unsigned long, unsigned long,
struct vm_area_struct *);
extern void __cpu_flush_kern_tlb_range(unsigned long, unsigned long);
/*
* TLB Management
* ==============
*
* The arch/unicore/mm/tlb-*.S files implement these methods.
*
* The TLB specific code is expected to perform whatever tests it
* needs to determine if it should invalidate the TLB for each
* call. Start addresses are inclusive and end addresses are
* exclusive; it is safe to round these addresses down.
*
* flush_tlb_all()
*
* Invalidate the entire TLB.
*
* flush_tlb_mm(mm)
*
* Invalidate all TLB entries in a particular address
* space.
* - mm - mm_struct describing address space
*
* flush_tlb_range(mm,start,end)
*
* Invalidate a range of TLB entries in the specified
* address space.
* - mm - mm_struct describing address space
* - start - start address (may not be aligned)
* - end - end address (exclusive, may not be aligned)
*
* flush_tlb_page(vaddr,vma)
*
* Invalidate the specified page in the specified address range.
* - vaddr - virtual address (may not be aligned)
* - vma - vma_struct describing address range
*
* flush_kern_tlb_page(kaddr)
*
* Invalidate the TLB entry for the specified page. The address
* will be in the kernels virtual memory space. Current uses
* only require the D-TLB to be invalidated.
* - kaddr - Kernel virtual memory address
*/
static inline void local_flush_tlb_all(void)
{
const int zero = 0;
/* TLB invalidate all */
asm("movc p0.c6, %0, #6; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (zero) : "cc");
}
static inline void local_flush_tlb_mm(struct mm_struct *mm)
{
const int zero = 0;
if (cpumask_test_cpu(get_cpu(), mm_cpumask(mm))) {
/* TLB invalidate all */
asm("movc p0.c6, %0, #6; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (zero) : "cc");
}
put_cpu();
}
static inline void
local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
{
if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) {
#ifndef CONFIG_CPU_TLB_SINGLE_ENTRY_DISABLE
/* iTLB invalidate page */
asm("movc p0.c6, %0, #5; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (uaddr & PAGE_MASK) : "cc");
/* dTLB invalidate page */
asm("movc p0.c6, %0, #3; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (uaddr & PAGE_MASK) : "cc");
#else
/* TLB invalidate all */
asm("movc p0.c6, %0, #6; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (uaddr & PAGE_MASK) : "cc");
#endif
}
}
static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
{
#ifndef CONFIG_CPU_TLB_SINGLE_ENTRY_DISABLE
/* iTLB invalidate page */
asm("movc p0.c6, %0, #5; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (kaddr & PAGE_MASK) : "cc");
/* dTLB invalidate page */
asm("movc p0.c6, %0, #3; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (kaddr & PAGE_MASK) : "cc");
#else
/* TLB invalidate all */
asm("movc p0.c6, %0, #6; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (kaddr & PAGE_MASK) : "cc");
#endif
}
/*
* flush_pmd_entry
*
* Flush a PMD entry (word aligned, or double-word aligned) to
* RAM if the TLB for the CPU we are running on requires this.
* This is typically used when we are creating PMD entries.
*
* clean_pmd_entry
*
* Clean (but don't drain the write buffer) if the CPU requires
* these operations. This is typically used when we are removing
* PMD entries.
*/
static inline void flush_pmd_entry(pmd_t *pmd)
{
#ifndef CONFIG_CPU_DCACHE_LINE_DISABLE
/* flush dcache line, see dcacheline_flush in proc-macros.S */
asm("mov r1, %0 << #20\n"
"ldw r2, =_stext\n"
"add r2, r2, r1 >> #20\n"
"ldw r1, [r2+], #0x0000\n"
"ldw r1, [r2+], #0x1000\n"
"ldw r1, [r2+], #0x2000\n"
"ldw r1, [r2+], #0x3000\n"
: : "r" (pmd) : "r1", "r2");
#else
/* flush dcache all */
asm("movc p0.c5, %0, #14; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (pmd) : "cc");
#endif
}
static inline void clean_pmd_entry(pmd_t *pmd)
{
#ifndef CONFIG_CPU_DCACHE_LINE_DISABLE
/* clean dcache line */
asm("movc p0.c5, %0, #11; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (__pa(pmd) & ~(L1_CACHE_BYTES - 1)) : "cc");
#else
/* clean dcache all */
asm("movc p0.c5, %0, #10; nop; nop; nop; nop; nop; nop; nop; nop"
: : "r" (pmd) : "cc");
#endif
}
/*
* Convert calls to our calling convention.
*/
#define local_flush_tlb_range(vma, start, end) \
__cpu_flush_user_tlb_range(start, end, vma)
#define local_flush_tlb_kernel_range(s, e) \
__cpu_flush_kern_tlb_range(s, e)
#define flush_tlb_all local_flush_tlb_all
#define flush_tlb_mm local_flush_tlb_mm
#define flush_tlb_page local_flush_tlb_page
#define flush_tlb_kernel_page local_flush_tlb_kernel_page
#define flush_tlb_range local_flush_tlb_range
#define flush_tlb_kernel_range local_flush_tlb_kernel_range
/*
* if PG_dcache_clean is not set for the page, we need to ensure that any
* cache entries for the kernels virtual memory range are written
* back to the page.
*/
extern void update_mmu_cache(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep);
extern void do_bad_area(unsigned long addr, unsigned int fsr,
struct pt_regs *regs);
#endif
#endif
/*
* linux/arch/unicore32/include/asm/traps.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_TRAP_H__
#define __UNICORE_TRAP_H__
extern void __init early_trap_init(void);
extern void dump_backtrace_entry(unsigned long where,
unsigned long from, unsigned long frame);
extern void do_DataAbort(unsigned long addr, unsigned int fsr,
struct pt_regs *regs);
#endif
/*
* linux/arch/unicore32/include/asm/uaccess.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_UACCESS_H__
#define __UNICORE_UACCESS_H__
#include <linux/thread_info.h>
#include <linux/errno.h>
#include <asm/memory.h>
#include <asm/system.h>
#define __copy_from_user __copy_from_user
#define __copy_to_user __copy_to_user
#define __strncpy_from_user __strncpy_from_user
#define __strnlen_user __strnlen_user
#define __clear_user __clear_user
#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
#define __user_ok(addr, size) (((size) <= TASK_SIZE) \
&& ((addr) <= TASK_SIZE - (size)))
#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
extern unsigned long __must_check
__copy_from_user(void *to, const void __user *from, unsigned long n);
extern unsigned long __must_check
__copy_to_user(void __user *to, const void *from, unsigned long n);
extern unsigned long __must_check
__clear_user(void __user *addr, unsigned long n);
extern unsigned long __must_check
__strncpy_from_user(char *to, const char __user *from, unsigned long count);
extern unsigned long
__strnlen_user(const char __user *s, long n);
#include <asm-generic/uaccess.h>
extern int fixup_exception(struct pt_regs *regs);
#endif /* __UNICORE_UACCESS_H__ */
/*
* linux/arch/unicore32/include/asm/unistd.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#if !defined(__UNICORE_UNISTD_H__) || defined(__SYSCALL)
#define __UNICORE_UNISTD_H__
/* Use the standard ABI for syscalls. */
#include <asm-generic/unistd.h>
#endif /* __UNICORE_UNISTD_H__ */
/*
* linux/arch/unicore32/include/mach/PKUnity.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/* Be sure that virtual mapping is defined right */
#ifndef __MACH_PUV3_HARDWARE_H__
#error You must include hardware.h not PKUnity.h
#endif
#include "bitfield.h"
/*
* Memory Definitions
*/
#define PKUNITY_SDRAM_BASE 0x00000000 /* 0x00000000 - 0x7FFFFFFF 2GB */
#define PKUNITY_MMIO_BASE 0x80000000 /* 0x80000000 - 0xFFFFFFFF 2GB */
/*
* PKUNITY Memory Map Addresses: 0x0D000000 - 0x0EFFFFFF (32MB)
* 0x0D000000 - 0x0DFFFFFF 16MB: for UVC
* 0x0E000000 - 0x0EFFFFFF 16MB: for UNIGFX
*/
#define PKUNITY_UVC_MMAP_BASE 0x0D000000
#define PKUNITY_UVC_MMAP_SIZE 0x01000000 /* 16MB */
#define PKUNITY_UNIGFX_MMAP_BASE 0x0E000000
#define PKUNITY_UNIGFX_MMAP_SIZE 0x01000000 /* 16MB */
/*
* PKUNITY System Bus Addresses (PCI): 0x80000000 - 0xBFFFFFFF (1GB)
* 0x80000000 - 0x8000000B 12B PCI Configuration regs
* 0x80010000 - 0x80010250 592B PCI Bridge Base
* 0x80030000 - 0x8003FFFF 64KB PCI Legacy IO
* 0x90000000 - 0x97FFFFFF 128MB PCI AHB-PCI MEM-mapping
* 0x98000000 - 0x9FFFFFFF 128MB PCI PCI-AHB MEM-mapping
*/
#define PKUNITY_PCI_BASE io_p2v(0x80000000) /* 0x80000000 - 0xBFFFFFFF 1GB */
#include "regs-pci.h"
#define PKUNITY_PCICFG_BASE (PKUNITY_PCI_BASE + 0x0)
#define PKUNITY_PCIBRI_BASE (PKUNITY_PCI_BASE + 0x00010000)
#define PKUNITY_PCILIO_BASE (PKUNITY_PCI_BASE + 0x00030000)
#define PKUNITY_PCIMEM_BASE (PKUNITY_PCI_BASE + 0x10000000)
#define PKUNITY_PCIAHB_BASE (PKUNITY_PCI_BASE + 0x18000000)
/*
* PKUNITY System Bus Addresses (AHB): 0xC0000000 - 0xEDFFFFFF (640MB)
*/
#define PKUNITY_AHB_BASE io_p2v(0xC0000000)
/* AHB-0 is DDR2 SDRAM */
/* AHB-1 is PCI Space */
#define PKUNITY_ARBITER_BASE (PKUNITY_AHB_BASE + 0x000000) /* AHB-2 */
#define PKUNITY_DDR2CTRL_BASE (PKUNITY_AHB_BASE + 0x100000) /* AHB-3 */
#define PKUNITY_DMAC_BASE (PKUNITY_AHB_BASE + 0x200000) /* AHB-4 */
#include "regs-dmac.h"
#define PKUNITY_UMAL_BASE (PKUNITY_AHB_BASE + 0x300000) /* AHB-5 */
#include "regs-umal.h"
#define PKUNITY_USB_BASE (PKUNITY_AHB_BASE + 0x400000) /* AHB-6 */
#define PKUNITY_SATA_BASE (PKUNITY_AHB_BASE + 0x500000) /* AHB-7 */
#define PKUNITY_SMC_BASE (PKUNITY_AHB_BASE + 0x600000) /* AHB-8 */
/* AHB-9 is for APB bridge */
#define PKUNITY_MME_BASE (PKUNITY_AHB_BASE + 0x700000) /* AHB-10 */
#define PKUNITY_UNIGFX_BASE (PKUNITY_AHB_BASE + 0x800000) /* AHB-11 */
#include "regs-unigfx.h"
#define PKUNITY_NAND_BASE (PKUNITY_AHB_BASE + 0x900000) /* AHB-12 */
#include "regs-nand.h"
#define PKUNITY_H264D_BASE (PKUNITY_AHB_BASE + 0xA00000) /* AHB-13 */
#define PKUNITY_H264E_BASE (PKUNITY_AHB_BASE + 0xB00000) /* AHB-14 */
/*
* PKUNITY Peripheral Bus Addresses (APB): 0xEE000000 - 0xEFFFFFFF (128MB)
*/
#define PKUNITY_APB_BASE io_p2v(0xEE000000)
#define PKUNITY_UART0_BASE (PKUNITY_APB_BASE + 0x000000) /* APB-0 */
#define PKUNITY_UART1_BASE (PKUNITY_APB_BASE + 0x100000) /* APB-1 */
#include "regs-uart.h"
#define PKUNITY_I2C_BASE (PKUNITY_APB_BASE + 0x200000) /* APB-2 */
#include "regs-i2c.h"
#define PKUNITY_SPI_BASE (PKUNITY_APB_BASE + 0x300000) /* APB-3 */
#include "regs-spi.h"
#define PKUNITY_AC97_BASE (PKUNITY_APB_BASE + 0x400000) /* APB-4 */
#include "regs-ac97.h"
#define PKUNITY_GPIO_BASE (PKUNITY_APB_BASE + 0x500000) /* APB-5 */
#include "regs-gpio.h"
#define PKUNITY_INTC_BASE (PKUNITY_APB_BASE + 0x600000) /* APB-6 */
#include "regs-intc.h"
#define PKUNITY_RTC_BASE (PKUNITY_APB_BASE + 0x700000) /* APB-7 */
#include "regs-rtc.h"
#define PKUNITY_OST_BASE (PKUNITY_APB_BASE + 0x800000) /* APB-8 */
#include "regs-ost.h"
#define PKUNITY_RESETC_BASE (PKUNITY_APB_BASE + 0x900000) /* APB-9 */
#include "regs-resetc.h"
#define PKUNITY_PM_BASE (PKUNITY_APB_BASE + 0xA00000) /* APB-10 */
#include "regs-pm.h"
#define PKUNITY_PS2_BASE (PKUNITY_APB_BASE + 0xB00000) /* APB-11 */
#include "regs-ps2.h"
#define PKUNITY_SDC_BASE (PKUNITY_APB_BASE + 0xC00000) /* APB-12 */
#include "regs-sdc.h"
/*
* linux/arch/unicore32/include/mach/bitfield.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __MACH_PUV3_BITFIELD_H__
#define __MACH_PUV3_BITFIELD_H__
#ifndef __ASSEMBLY__
#define UData(Data) ((unsigned long) (Data))
#else
#define UData(Data) (Data)
#endif
#define FIELD(val, vmask, vshift) (((val) & ((UData(1) << (vmask)) - 1)) << (vshift))
#define FMASK(vmask, vshift) (((UData(1) << (vmask)) - 1) << (vshift))
#endif /* __MACH_PUV3_BITFIELD_H__ */
/*
* linux/arch/unicore32/include/mach/dma.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __MACH_PUV3_DMA_H__
#define __MACH_PUV3_DMA_H__
/*
* The PKUnity has six internal DMA channels.
*/
#define MAX_DMA_CHANNELS 6
typedef enum {
DMA_PRIO_HIGH = 0,
DMA_PRIO_MEDIUM = 1,
DMA_PRIO_LOW = 2
} puv3_dma_prio;
/*
* DMA registration
*/
extern int puv3_request_dma(char *name,
puv3_dma_prio prio,
void (*irq_handler)(int, void *),
void (*err_handler)(int, void *),
void *data);
extern void puv3_free_dma(int dma_ch);
static inline void puv3_stop_dma(int ch)
{
writel(readl(DMAC_CONFIG(ch)) & ~DMAC_CONFIG_EN, DMAC_CONFIG(ch));
}
static inline void puv3_resume_dma(int ch)
{
writel(readl(DMAC_CONFIG(ch)) | DMAC_CONFIG_EN, DMAC_CONFIG(ch));
}
#endif /* __MACH_PUV3_DMA_H__ */
/*
* linux/arch/unicore32/include/mach/hardware.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This file contains the hardware definitions for PKUnity architecture
*/
#ifndef __MACH_PUV3_HARDWARE_H__
#define __MACH_PUV3_HARDWARE_H__
#include "PKUnity.h"
#ifndef __ASSEMBLY__
#define io_p2v(x) (void __iomem *)((x) - PKUNITY_MMIO_BASE)
#define io_v2p(x) (phys_addr_t)((x) + PKUNITY_MMIO_BASE)
#else
#define io_p2v(x) ((x) - PKUNITY_MMIO_BASE)
#define io_v2p(x) ((x) + PKUNITY_MMIO_BASE)
#endif
#define PCIBIOS_MIN_IO 0x4000 /* should lower than 64KB */
#define PCIBIOS_MIN_MEM io_v2p(PKUNITY_PCIMEM_BASE)
/*
* We override the standard dma-mask routines for bouncing.
*/
#define HAVE_ARCH_PCI_SET_DMA_MASK
#define pcibios_assign_all_busses() 1
#endif /* __MACH_PUV3_HARDWARE_H__ */
/*
* linux/arch/unicore32/include/mach/map.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Page table mapping constructs and function prototypes
*/
#define MT_DEVICE 0
#define MT_DEVICE_CACHED 2
#define MT_KUSER 7
#define MT_HIGH_VECTORS 8
#define MT_MEMORY 9
#define MT_ROM 10
/*
* linux/arch/unicore32/include/mach/memory.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __MACH_PUV3_MEMORY_H__
#define __MACH_PUV3_MEMORY_H__
#include <mach/hardware.h>
/* Physical DRAM offset. */
#define PHYS_OFFSET UL(0x00000000)
/* The base address of exception vectors. */
#define VECTORS_BASE UL(0xffff0000)
/* The base address of kuser area. */
#define KUSER_BASE UL(0x80000000)
#ifdef __ASSEMBLY__
/* The byte offset of the kernel image in RAM from the start of RAM. */
#define KERNEL_IMAGE_START 0x00408000
#endif
#if !defined(__ASSEMBLY__) && defined(CONFIG_PCI)
void puv3_pci_adjust_zones(unsigned long *size, unsigned long *holes);
#define arch_adjust_zones(size, holes) \
puv3_pci_adjust_zones(size, holes)
#endif
/*
* PCI controller in PKUnity-3 masks highest 5-bit for upstream channel,
* so we must limit the DMA allocation within 128M physical memory for
* supporting PCI devices.
*/
#define PCI_DMA_THRESHOLD (PHYS_OFFSET + SZ_128M - 1)
#define is_pcibus_device(dev) (dev && \
(strncmp(dev->bus->name, "pci", 3) == 0))
#define __virt_to_pcibus(x) (__virt_to_phys((x) + PKUNITY_PCIAHB_BASE))
#define __pcibus_to_virt(x) (__phys_to_virt(x) - PKUNITY_PCIAHB_BASE)
/* kuser area */
#define KUSER_VECPAGE_BASE (KUSER_BASE + UL(0x3fff0000))
#define KUSER_UNIGFX_BASE (PAGE_OFFSET + PKUNITY_UNIGFX_MMAP_BASE)
/* kuser_vecpage (0xbfff0000) is ro, and vectors page (0xffff0000) is rw */
#define kuser_vecpage_to_vectors(x) ((x) - (KUSER_VECPAGE_BASE) \
+ (VECTORS_BASE))
#endif
/*
* linux/arch/unicore32/include/mach/ocd.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __MACH_PUV3_OCD_H__
#define __MACH_PUV3_OCD_H__
#if defined(CONFIG_DEBUG_OCD)
static inline void ocd_putc(unsigned int c)
{
int status, i = 0x2000000;
do {
if (--i < 0)
return;
asm volatile ("movc %0, p1.c0, #0" : "=r" (status));
} while (status & 2);
asm("movc p1.c1, %0, #1" : : "r" (c));
}
#define putc(ch) ocd_putc(ch)
#else
#define putc(ch)
#endif
#endif
/*
* linux/arch/unicore/include/mach/pm.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __PUV3_PM_H__
#define __PUV3_PM_H__
#include <linux/suspend.h>
struct puv3_cpu_pm_fns {
int save_count;
void (*save)(unsigned long *);
void (*restore)(unsigned long *);
int (*valid)(suspend_state_t state);
void (*enter)(suspend_state_t state);
int (*prepare)(void);
void (*finish)(void);
};
extern struct puv3_cpu_pm_fns *puv3_cpu_pm_fns;
/* sleep.S */
extern void puv3_cpu_suspend(unsigned int);
extern void puv3_cpu_resume(void);
extern int puv3_pm_enter(suspend_state_t state);
/* Defined in hibernate_asm.S */
extern int restore_image(pgd_t *resume_pg_dir, struct pbe *restore_pblist);
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
extern struct pbe *restore_pblist;
#endif
/*
* PKUnity AC97 Registers
*/
#define PKUNITY_AC97_CONR (PKUNITY_AC97_BASE + 0x0000)
#define PKUNITY_AC97_OCR (PKUNITY_AC97_BASE + 0x0004)
#define PKUNITY_AC97_ICR (PKUNITY_AC97_BASE + 0x0008)
#define PKUNITY_AC97_CRAC (PKUNITY_AC97_BASE + 0x000C)
#define PKUNITY_AC97_INTR (PKUNITY_AC97_BASE + 0x0010)
#define PKUNITY_AC97_INTRSTAT (PKUNITY_AC97_BASE + 0x0014)
#define PKUNITY_AC97_INTRCLEAR (PKUNITY_AC97_BASE + 0x0018)
#define PKUNITY_AC97_ENABLE (PKUNITY_AC97_BASE + 0x001C)
#define PKUNITY_AC97_OUT_FIFO (PKUNITY_AC97_BASE + 0x0020)
#define PKUNITY_AC97_IN_FIFO (PKUNITY_AC97_BASE + 0x0030)
#define AC97_CODEC_REG(v) FIELD((v), 7, 16)
#define AC97_CODEC_VAL(v) FIELD((v), 16, 0)
#define AC97_CODEC_WRITECOMPLETE FIELD(1, 1, 2)
/*
* VAR PLAY SAMPLE RATE
*/
#define AC97_CMD_VPSAMPLE (FIELD(3, 2, 16) | FIELD(3, 2, 0))
/*
* FIX CAPTURE SAMPLE RATE
*/
#define AC97_CMD_FCSAMPLE FIELD(7, 3, 0)
#define AC97_CMD_RESET FIELD(1, 1, 0)
#define AC97_CMD_ENABLE FIELD(1, 1, 0)
#define AC97_CMD_DISABLE FIELD(0, 1, 0)
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/*
* PKUnity PS2 Controller Registers
*/
/*
* the same as I8042_DATA_REG PS2_DATA
*/
#define PS2_DATA (PKUNITY_PS2_BASE + 0x0060)
/*
* the same as I8042_COMMAND_REG PS2_COMMAND
*/
#define PS2_COMMAND (PKUNITY_PS2_BASE + 0x0064)
/*
* the same as I8042_STATUS_REG PS2_STATUS
*/
#define PS2_STATUS (PKUNITY_PS2_BASE + 0x0064)
/*
* counter reg PS2_CNT
*/
#define PS2_CNT (PKUNITY_PS2_BASE + 0x0068)
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