Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

75 files changed, 17847 insertions, 0 deletions

diff --git a/arch/sh64/Kconfig b/arch/sh64/Kconfig
new file mode 100644
index 000000000000..76eb81fba45e
--- /dev/null
+++ b/arch/sh64/Kconfig
@@ -0,0 +1,293 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/config-language.txt.
+#
+
+mainmenu "Linux/SH64 Kernel Configuration"
+
+config SUPERH
+	bool
+	default y
+
+config SUPERH64
+	bool
+	default y
+
+config MMU
+	bool
+	default y
+
+config UID16
+	bool
+	default y
+
+config RWSEM_GENERIC_SPINLOCK
+	bool
+	default y
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config LOG_BUF_SHIFT
+	int
+	default 14
+
+config RWSEM_XCHGADD_ALGORITHM
+	bool
+
+config GENERIC_ISA_DMA
+	bool
+
+source init/Kconfig
+
+menu "System type"
+
+choice
+	prompt "SuperH system type"
+	default SH_SIMULATOR
+
+config SH_GENERIC
+	bool "Generic"
+
+config SH_SIMULATOR
+	bool "Simulator"
+
+config SH_CAYMAN
+	bool "Cayman"
+
+config SH_ROMRAM
+	bool "ROM/RAM"
+
+config SH_HARP
+	bool "ST50-Harp"
+
+endchoice
+
+choice
+	prompt "Processor family"
+	default CPU_SH5
+
+config CPU_SH5
+	bool "SH-5"
+
+endchoice
+
+choice
+	prompt "Processor type"
+
+config CPU_SUBTYPE_SH5_101
+	bool "SH5-101"
+	depends on CPU_SH5
+
+config CPU_SUBTYPE_SH5_103
+	bool "SH5-103"
+	depends on CPU_SH5
+
+endchoice
+
+choice
+	prompt "Endianness"
+	default LITTLE_ENDIAN
+
+config LITTLE_ENDIAN
+	bool "Little-Endian"
+
+config BIG_ENDIAN
+	bool "Big-Endian"
+
+endchoice
+
+config SH_FPU
+	bool "FPU support"
+	default y
+
+config SH64_FPU_DENORM_FLUSH
+	depends on SH_FPU
+	bool "Flush floating point denorms to zero"
+
+choice
+	prompt "Page table levels"
+	default SH64_PGTABLE_2_LEVEL
+
+config SH64_PGTABLE_2_LEVEL
+	bool "2"
+
+config SH64_PGTABLE_3_LEVEL
+	bool "3"
+
+endchoice
+
+choice
+	prompt "HugeTLB page size"
+	depends on HUGETLB_PAGE && MMU
+	default HUGETLB_PAGE_SIZE_64K
+
+config HUGETLB_PAGE_SIZE_64K
+	bool "64K"
+
+config HUGETLB_PAGE_SIZE_1MB
+	bool "1MB"
+
+config HUGETLB_PAGE_SIZE_512MB
+	bool "512MB"
+
+endchoice
+
+config SH64_USER_MISALIGNED_FIXUP
+	bool "Fixup misaligned loads/stores occurring in user mode"
+
+comment "Memory options"
+
+config CACHED_MEMORY_OFFSET
+	hex "Cached Area Offset"
+	depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
+	default "20000000"
+
+config MEMORY_START
+	hex "Physical memory start address"
+	depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
+	default "80000000"
+
+config MEMORY_SIZE_IN_MB
+	int "Memory size (in MB)" if SH_HARP || SH_CAYMAN || SH_SIMULATOR
+	default "64" if SH_HARP || SH_CAYMAN
+	default "8" if SH_SIMULATOR
+
+comment "Cache options"
+
+config DCACHE_DISABLED
+	bool "DCache Disabling"
+	depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
+
+choice
+	prompt "DCache mode"
+	depends on !DCACHE_DISABLED && !SH_SIMULATOR
+	default DCACHE_WRITE_BACK
+
+config DCACHE_WRITE_BACK
+	bool "Write-back"
+
+config DCACHE_WRITE_THROUGH
+	bool "Write-through"
+
+endchoice
+
+config ICACHE_DISABLED
+	bool "ICache Disabling"
+	depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
+
+config PCIDEVICE_MEMORY_START
+	hex
+	depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
+	default "C0000000"
+
+config DEVICE_MEMORY_START
+	hex
+	depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
+	default "E0000000"
+
+config FLASH_MEMORY_START
+	hex "Flash memory/on-chip devices start address"
+	depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
+	default "00000000"
+
+config PCI_BLOCK_START
+	hex "PCI block start address"
+	depends on SH_HARP || SH_CAYMAN || SH_SIMULATOR
+	default "40000000"
+
+comment "CPU Subtype specific options"
+
+config SH64_ID2815_WORKAROUND
+	bool "Include workaround for SH5-101 cut2 silicon defect ID2815"
+
+comment "Misc options"
+config HEARTBEAT
+	bool "Heartbeat LED"
+
+config HDSP253_LED
+	bool "Support for HDSP-253 LED"
+	depends on SH_CAYMAN
+
+config SH_DMA
+	tristate "DMA controller (DMAC) support"
+
+config PREEMPT
+	bool "Preemptible Kernel (EXPERIMENTAL)"
+	depends on EXPERIMENTAL
+
+endmenu
+
+menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
+
+config ISA
+	bool
+
+config SBUS
+	bool
+
+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.
+
+	  The PCI-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>, contains valuable
+	  information about which PCI hardware does work under Linux and which
+	  doesn't.
+
+config SH_PCIDMA_NONCOHERENT
+	bool "Cache and PCI noncoherent"
+	depends on PCI
+	default y
+	help
+	  Enable this option if your platform does not have a CPU cache which
+	  remains coherent with PCI DMA. It is safest to say 'Y', although you
+	  will see better performance if you can say 'N', because the PCI DMA
+	  code will not have to flush the CPU's caches. If you have a PCI host
+	  bridge integrated with your SH CPU, refer carefully to the chip specs
+	  to see if you can say 'N' here. Otherwise, leave it as 'Y'.
+
+source "drivers/pci/Kconfig"
+
+source "drivers/pcmcia/Kconfig"
+
+source "drivers/pci/hotplug/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/sh64/oprofile/Kconfig"
+
+source "arch/sh64/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
+
+#
+# Use the generic interrupt handling code in kernel/irq/:
+#
+config GENERIC_HARDIRQS
+	bool
+	default y
+
+config GENERIC_IRQ_PROBE
+	bool
+	default y
+
diff --git a/arch/sh64/Kconfig.debug b/arch/sh64/Kconfig.debug
new file mode 100644
index 000000000000..26d842c07139
--- /dev/null
+++ b/arch/sh64/Kconfig.debug
@@ -0,0 +1,44 @@
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config EARLY_PRINTK
+	bool "Early SCIF console support"
+
+config DEBUG_KERNEL_WITH_GDB_STUB
+	bool "GDB Stub kernel debug"
+
+config SH64_PROC_TLB
+	bool "Debug: report TLB fill/purge activity through /proc/tlb"
+	depends on PROC_FS
+
+config SH64_PROC_ASIDS
+	bool "Debug: report ASIDs through /proc/asids"
+	depends on PROC_FS
+
+config SH64_SR_WATCH
+	bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
+
+config POOR_MANS_STRACE
+	bool "Debug: enable rudimentary strace facility"
+	help
+	  This option allows system calls to be traced to the console.  It also
+	  aids in detecting kernel stack underflow.  It is useful for debugging
+	  early-userland problems (e.g. init incurring fatal exceptions.)
+
+config SH_ALPHANUMERIC
+	bool "Enable debug outputs to on-board alphanumeric display"
+
+config SH_NO_BSS_INIT
+	bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
+
+config FRAME_POINTER
+	bool "Compile the kernel with frame pointers"
+	default y if KGDB
+	help
+	  If you say Y here the resulting kernel image will be slightly larger
+	  and slower, but it will give very useful debugging information.
+	  If you don't debug the kernel, you can say N, but we may not be able
+	  to solve problems without frame pointers.
+
+endmenu
diff --git a/arch/sh64/Makefile b/arch/sh64/Makefile
new file mode 100644
index 000000000000..b4fd8e13fea9
--- /dev/null
+++ b/arch/sh64/Makefile
@@ -0,0 +1,116 @@
+#
+# 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) 2000, 2001  Paolo Alberelli
+# Copyright (C) 2003, 2004  Paul Mundt
+#
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies. Remember to do have actions
+# for "archclean" and "archdep" for cleaning up and making dependencies for
+# this architecture
+#
+
+cpu-y				:= -mb
+cpu-$(CONFIG_LITTLE_ENDIAN)	:= -ml
+
+cpu-$(CONFIG_CPU_SH5)		+= -m5-32media-nofpu
+
+ifdef CONFIG_LITTLE_ENDIAN
+LDFLAGS_vmlinux		+= --defsym 'jiffies=jiffies_64'
+LDFLAGS			+= -EL  -mshlelf32_linux
+else
+LDFLAGS_vmlinux		+= --defsym 'jiffies=jiffies_64+4'
+LDFLAGS			+= -EB  -mshelf32_linux
+endif
+
+# No requirements for endianess support from AFLAGS, 'as' always run through gcc
+AFLAGS		+= -m5 -isa=sh64 -traditional
+CFLAGS		+= $(cpu-y)
+
+LDFLAGS_vmlinux	+= --defsym phys_stext=_stext-$(CONFIG_CACHED_MEMORY_OFFSET) \
+		  --defsym phys_stext_shmedia=phys_stext+1 \
+		  -e phys_stext_shmedia
+
+OBJCOPYFLAGS	:= -O binary -R .note -R .comment -R .stab -R .stabstr -S
+
+#
+# arch/sh64/defconfig never had any hope of being
+# frequently updated, so use one that does
+#
+KBUILD_DEFCONFIG	:= cayman_defconfig
+
+ifdef LOADADDR
+LINKFLAGS     += -Ttext $(word 1,$(LOADADDR))
+endif
+
+machine-$(CONFIG_SH_CAYMAN)	:= cayman
+machine-$(CONFIG_SH_SIMULATOR)	:= sim
+machine-$(CONFIG_SH_HARP)	:= harp
+machine-$(CONFIG_SH_ROMRAM)	:= romram
+
+head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o
+
+core-y	+= arch/sh64/kernel/ arch/sh64/mm/
+
+ifneq ($(machine-y),)
+core-y	+= arch/sh64/mach-$(machine-y)/
+endif
+
+LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
+libs-y	+= arch/$(ARCH)/lib/ $(LIBGCC)
+
+drivers-$(CONFIG_OPROFILE)	+= arch/sh64/oprofile/
+
+boot := arch/$(ARCH)/boot
+
+zImage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+compressed: zImage
+
+archclean:
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+prepare: include/asm-$(ARCH)/asm-offsets.h arch/$(ARCH)/lib/syscalltab.h
+
+include/asm-$(ARCH)/asm-offsets.h: arch/$(ARCH)/kernel/asm-offsets.s \
+				   include/asm include/linux/version.h
+	$(call filechk,gen-asm-offsets)
+
+define filechk_gen-syscalltab
+       (set -e; \
+	echo "/*"; \
+	echo " * DO NOT MODIFY."; \
+	echo " *"; \
+	echo " * This file was generated by arch/$(ARCH)/Makefile"; \
+	echo " * Any changes will be reverted at build time."; \
+	echo " */"; \
+	echo ""; \
+	echo "#ifndef __SYSCALLTAB_H"; \
+	echo "#define __SYSCALLTAB_H"; \
+	echo ""; \
+	echo "#include <linux/kernel.h>"; \
+	echo ""; \
+	echo "struct syscall_info {"; \
+	echo "	const char *name;"; \
+	echo "} syscall_info_table[] = {"; \
+	sed -e '/^.*\.long /!d;s//    { "/;s/\(\([^/]*\)\/\)\{1\}.*/\2/; \
+		s/[ \t]*$$//g;s/$$/" },/;s/\("\)sys_/\1/g'; \
+	echo "};"; \
+	echo ""; \
+	echo "#define NUM_SYSCALL_INFO_ENTRIES	ARRAY_SIZE(syscall_info_table)"; \
+	echo ""; \
+	echo "#endif /* __SYSCALLTAB_H */" )
+endef
+
+arch/$(ARCH)/lib/syscalltab.h: arch/sh64/kernel/syscalls.S
+	$(call filechk,gen-syscalltab)
+
+CLEAN_FILES += include/asm-$(ARCH)/asm-offsets.h arch/$(ARCH)/lib/syscalltab.h
+
+define archhelp
+	@echo '  zImage 	           - Compressed kernel image (arch/sh64/boot/zImage)'
+endef
+
diff --git a/arch/sh64/boot/Makefile b/arch/sh64/boot/Makefile
new file mode 100644
index 000000000000..fb71087b7b8a
--- /dev/null
+++ b/arch/sh64/boot/Makefile
@@ -0,0 +1,20 @@
+#
+# arch/sh64/boot/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2002 Stuart Menefy
+#
+
+targets := zImage
+subdir- := compressed
+
+$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+	@echo 'Kernel: $@ is ready'
+
+$(obj)/compressed/vmlinux: FORCE
+	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
+
diff --git a/arch/sh64/boot/compressed/Makefile b/arch/sh64/boot/compressed/Makefile
new file mode 100644
index 000000000000..9cd216718856
--- /dev/null
+++ b/arch/sh64/boot/compressed/Makefile
@@ -0,0 +1,46 @@
+#
+# linux/arch/sh64/boot/compressed/Makefile
+#
+# 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 Stuart Menefy
+# Copyright (C) 2004 Paul Mundt
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
+		   head.o misc.o cache.o piggy.o vmlinux.lds
+
+EXTRA_AFLAGS	:= -traditional
+
+OBJECTS		:= $(obj)/head.o $(obj)/misc.o $(obj)/cache.o
+
+#
+# ZIMAGE_OFFSET is the load offset of the compression loader
+# (4M for the kernel plus 64K for this loader)
+#
+ZIMAGE_OFFSET = $(shell printf "0x%8x" $$[$(CONFIG_MEMORY_START)+0x400000+0x10000])
+
+LDFLAGS_vmlinux := -Ttext $(ZIMAGE_OFFSET) -e startup \
+		    -T $(obj)/../../kernel/vmlinux.lds \
+		    --no-warn-mismatch
+
+$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh64-linux -T
+OBJCOPYFLAGS += -R .empty_zero_page
+
+$(obj)/piggy.o: $(obj)/vmlinux.lds $(obj)/vmlinux.bin.gz FORCE
+	$(call if_changed,ld)
+
diff --git a/arch/sh64/boot/compressed/cache.c b/arch/sh64/boot/compressed/cache.c
new file mode 100644
index 000000000000..708707355ffa
--- /dev/null
+++ b/arch/sh64/boot/compressed/cache.c
@@ -0,0 +1,39 @@
+/*
+ * arch/shmedia/boot/compressed/cache.c -- simple cache management functions
+ *
+ * Code extracted from sh-ipl+g, sh-stub.c, which has the copyright:
+ *
+ *   This is originally based on an m68k software stub written by Glenn
+ *   Engel at HP, but has changed quite a bit.
+ *
+ *   Modifications for the SH by Ben Lee and Steve Chamberlain
+ *
+****************************************************************************
+
+		THIS SOFTWARE IS NOT COPYRIGHTED
+
+   HP offers the following for use in the public domain.  HP makes no
+   warranty with regard to the software or it's performance and the
+   user accepts the software "AS IS" with all faults.
+
+   HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
+   TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+****************************************************************************/
+
+#define CACHE_ENABLE      0
+#define CACHE_DISABLE     1
+
+int cache_control(unsigned int command)
+{
+	volatile unsigned int *p = (volatile unsigned int *) 0x80000000;
+	int i;
+
+	for (i = 0; i < (32 * 1024); i += 32) {
+		(void *) *p;
+		p += (32 / sizeof (int));
+	}
+
+	return 0;
+}
diff --git a/arch/sh64/boot/compressed/head.S b/arch/sh64/boot/compressed/head.S
new file mode 100644
index 000000000000..82040b1a29cf
--- /dev/null
+++ b/arch/sh64/boot/compressed/head.S
@@ -0,0 +1,164 @@
+/*
+ * 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.
+ *
+ * arch/shmedia/boot/compressed/head.S
+ *
+ * Copied from
+ *   arch/shmedia/kernel/head.S
+ * which carried the copyright:
+ *   Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * Modification for compressed loader:
+ *   Copyright (C) 2002 Stuart Menefy (stuart.menefy@st.com)
+ */
+
+#include <linux/linkage