Merge bk://bk.arm.linux.org.uk/linux-2.6-mmc

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Documentation/i386/boot.txt

@@ -173,6 +173,9 @@ filled out, however:
 	2  bootsect-loader
 	3  SYSLINUX
 	4  EtherBoot
+	5  ELILO
+	7  GRuB
+	8  U-BOOT
 
 	Please contact <hpa@zytor.com> if you need a bootloader ID
 	value assigned.

Documentation/i386/zero-page.txt

@@ -74,6 +74,10 @@ Offset	Type		Description
 0x21c	unsigned long	INITRD_SIZE, size in bytes of ramdisk image
 0x220	4 bytes		(setup.S)
 0x224	unsigned short	setup.S heap end pointer
+0x226   unsigned short	zero_pad
+0x228   unsigned long	cmd_line_ptr
+0x22c   unsigned long	ramdisk_max
+0x230   16 bytes 	trampoline
 0x290 - 0x2cf		EDD_MBR_SIG_BUFFER (edd.S)
 0x2d0 - 0x600		E820MAP
 0x600 - 0x7ff		EDDBUF (edd.S) for disk signature read sector

Documentation/kernel-parameters.txt

@@ -50,6 +50,7 @@ restrictions referred to are that the relevant option is valid if:
 	MOUSE	Appropriate mouse support is enabled.
 	MTD	MTD support is enabled.
 	NET	Appropriate network support is enabled.
+	NUMA	NUMA support is enabled.
 	NFS	Appropriate NFS support is enabled.
 	OSS	OSS sound support is enabled.
 	PARIDE	The ParIDE subsystem is enabled.
@@ -476,6 +477,10 @@ running once the system is up.
  
 	gvp11=		[HW,SCSI]
 
+	hashdist=	[KNL,NUMA] Large hashes allocated during boot
+			are distributed across NUMA nodes.  Defaults on
+			for IA-64, off otherwise.
+
 	hcl=		[IA-64] SGI's Hardware Graph compatibility layer
 
 	hd=		[EIDE] (E)IDE hard drive subsystem geometry

Documentation/powerpc/00-INDEX

@@ -5,6 +5,9 @@ please mail me.
 
 00-INDEX
 	- this file
+cpu_features.txt
+	- info on how we support a variety of CPUs with minimal compile-time
+	options.
 ppc_htab.txt
 	- info about the Linux/PPC /proc/ppc_htab entry
 smp.txt

Documentation/powerpc/cpu_features.txt

+Hollis Blanchard <hollis@austin.ibm.com>
+5 Jun 2002
+
+This document describes the system (including self-modifying code) used in the
+PPC Linux kernel to support a variety of PowerPC CPUs without requiring
+compile-time selection.
+
+Early in the boot process the ppc32 kernel detects the current CPU type and
+chooses a set of features accordingly. Some examples include Altivec support,
+split instruction and data caches, and if the CPU supports the DOZE and NAP
+sleep modes.
+
+Detection of the feature set is simple. A list of processors can be found in
+arch/ppc/kernel/cputable.c. The PVR register is masked and compared with each
+value in the list. If a match is found, the cpu_features of cur_cpu_spec is
+assigned to the feature bitmask for this processor and a __setup_cpu function
+is called.
+
+C code may test 'cur_cpu_spec[smp_processor_id()]->cpu_features' for a
+particular feature bit. This is done in quite a few places, for example
+in ppc_setup_l2cr().
+
+Implementing cpufeatures in assembly is a little more involved. There are
+several paths that are performance-critical and would suffer if an array
+index, structure dereference, and conditional branch were added. To avoid the
+performance penalty but still allow for runtime (rather than compile-time) CPU
+selection, unused code is replaced by 'nop' instructions. This nop'ing is
+based on CPU 0's capabilities, so a multi-processor system with non-identical
+processors will not work (but such a system would likely have other problems
+anyways).
+
+After detecting the processor type, the kernel patches out sections of code
+that shouldn't be used by writing nop's over it. Using cpufeatures requires
+just 2 macros (found in include/asm-ppc/cputable.h), as seen in head.S
+transfer_to_handler:
+
+	#ifdef CONFIG_ALTIVEC
+	BEGIN_FTR_SECTION
+		mfspr	r22,SPRN_VRSAVE		/* if G4, save vrsave register value */
+		stw	r22,THREAD_VRSAVE(r23)
+	END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+	#endif /* CONFIG_ALTIVEC */
+
+If CPU 0 supports Altivec, the code is left untouched. If it doesn't, both
+instructions are replaced with nop's.
+
+The END_FTR_SECTION macro has two simpler variations: END_FTR_SECTION_IFSET
+and END_FTR_SECTION_IFCLR. These simply test if a flag is set (in
+cur_cpu_spec[0]->cpu_features) or is cleared, respectively. These two macros
+should be used in the majority of cases.
+
+The END_FTR_SECTION macros are implemented by storing information about this
+code in the '__ftr_fixup' ELF section. When do_cpu_ftr_fixups
+(arch/ppc/kernel/misc.S) is invoked, it will iterate over the records in
+__ftr_fixup, and if the required feature is not present it will loop writing
+nop's from each BEGIN_FTR_SECTION to END_FTR_SECTION.

arch/arm26/ACKNOWLEDGEMENTS

@@ -15,6 +15,8 @@ Philip Blundell
 Russell King
 Keith Owens
 
+also thanks to Nicholas Pitre for hints, and for the basis or our XIP support.
+
 Currently maintaing the code are
 
 Ian Molton (Maintainer / Archimedes)

arch/arm26/Makefile

@@ -6,6 +6,7 @@
 # for more details.
 #
 # Copyright (C) 1995-2001 by Russell King
+# Copyright (c) 2004 Ian Molton
 
 LDFLAGS_vmlinux	:=-p -X
 CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
@@ -20,13 +21,9 @@ ifeq ($(CONFIG_DEBUG_INFO),y)
 CFLAGS		+=-g
 endif
 
-# Force -mno-fpu to be passed to the assembler.  Some versions of gcc don't
-# do this with -msoft-float
-CFLAGS_BOOT	:=-mapcs-26 -mcpu=arm3 -mshort-load-bytes -msoft-float -Wa,-mno-fpu -Uarm
-CFLAGS		+=-mapcs-26 -mcpu=arm3 -mshort-load-bytes -msoft-float -Wa,-mno-fpu -Uarm
-AFLAGS		+=-mapcs-26 -mcpu=arm3 -mno-fpu -msoft-float -Wa,-mno-fpu
-
-head-y		:= arch/arm26/machine/head.o arch/arm26/kernel/init_task.o
+CFLAGS_BOOT	:=-mapcs-26 -mcpu=arm3 -msoft-float -Uarm
+CFLAGS		+=-mapcs-26 -mcpu=arm3 -msoft-float -Uarm
+AFLAGS		+=-mapcs-26 -mcpu=arm3 -msoft-float
 
 ifeq ($(CONFIG_XIP_KERNEL),y)
   TEXTADDR	 := 0x03880000
@@ -36,6 +33,8 @@ else
   DATAADDR       := .
 endif
 
+head-y          := arch/arm26/kernel/head.o arch/arm26/kernel/init_task.o
+
 ifeq ($(incdir-y),)
 incdir-y :=
 endif
@@ -109,6 +108,7 @@ define archhelp
   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
   echo  '  bootpImage    - Combined zImage and initial RAM disk' 
+  echo  '  xipImage      - eXecute In Place capable image for ROM use (arch/$(ARCH)/boot/xipImage)'
   echo  '  initrd        - Create an initial image'
   echo  '  install       - Install uncompressed kernel'
   echo  '  zinstall      - Install compressed kernel'

arch/arm26/boot/Makefile

 #
-# arch/arm/boot/Makefile
+# arch/arm26/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
@@ -51,8 +51,10 @@ $(obj)/compressed/vmlinux: vmlinux FORCE
 
 ifeq ($(CONFIG_XIP_KERNEL),y)
 $(obj)/xipImage: vmlinux FORCE
-	$(OBJCOPY) -S -O binary -R .data -R .comment vmlinux vmlinux-text.bin
-	$(OBJCOPY) -S -O binary -R .init -R .text -R .comment -R __ex_table -R __ksymtab vmlinux vmlinux-data.bin
+#	$(OBJCOPY) -S -O binary -R .data -R .comment vmlinux vmlinux-text.bin
+# FIXME - where has .pci_fixup crept in from?
+	$(OBJCOPY) -S -O binary -R .data -R .pci_fixup -R .comment vmlinux vmlinux-text.bin
+	$(OBJCOPY) -S -O binary -R .init -R .text -R __ex_table -R .pci_fixup -R __ksymtab -R __ksymtab_gpl -R __kcrctab -R __kcrctab_gpl -R __param -R .comment vmlinux vmlinux-data.bin
 	cat vmlinux-text.bin vmlinux-data.bin > $@
 	$(RM) -f vmlinux-text.bin vmlinux-data.bin
 	@echo '  Kernel: $@ is ready'

arch/arm26/boot/compressed/head.S

 /*
- *  linux/arch/arm/boot/compressed/head.S
+ *  linux/arch/arm26/boot/compressed/head.S
  *
  *  Copyright (C) 1996-2002 Russell King
  *

arch/arm26/boot/compressed/ll_char_wr.S

 /*
- *  linux/arch/arm/lib/ll_char_wr.S
+ *  linux/arch/arm26/lib/ll_char_wr.S
  *
  *  Copyright (C) 1995, 1996 Russell King.
  *

arch/arm26/boot/compressed/ofw-shark.c

-/*
- * linux/arch/arm/boot/compressed/ofw-shark.c
- *
- * by Alexander Schulz
- *
- * This file is used to get some basic information
- * about the memory layout of the shark we are running
- * on. Memory is usually divided in blocks a 8 MB.
- * And bootargs are copied from OpenFirmware.
- */
-
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <asm/setup.h>
-#include <asm/page.h>
-
-
-asmlinkage void
-create_params (unsigned long *buffer)
-{
-	/* Is there a better address? Also change in mach-shark/core.c */
-	struct tag *tag = (struct tag *) 0x08003000;
-	int j,i,m,k,nr_banks,size;
-	unsigned char *c;
-
-	/* Head of the taglist */
-	tag->hdr.tag  = ATAG_CORE;
-	tag->hdr.size = tag_size(tag_core);
-	tag->u.core.flags = FLAG_READONLY;
-	tag->u.core.pagesize = PAGE_SIZE;
-	tag->u.core.rootdev = 0;
-
-	/* Build up one tagged block for each memory region */
-	size=0;
-	nr_banks=(unsigned int) buffer[0];
-	for (j=0;j<nr_banks;j++){
-		/* search the lowest address and put it into the next entry   */
-		/* not a fast sort algorithm, but there are at most 8 entries */
-		/* and this is used only once anyway                          */
-		m=0xffffffff;
-		for (i=0;i<(unsigned int) buffer[0];i++){
-			if (buffer[2*i+1]<m) {
-				m=buffer[2*i+1];
-				k=i;
-			}
-		}
-	  
-		tag = tag_next(tag);
-		tag->hdr.tag = ATAG_MEM;
-		tag->hdr.size = tag_size(tag_mem32);
-		tag->u.mem.size = buffer[2*k+2];
-		tag->u.mem.start = buffer[2*k+1];
-
-		size += buffer[2*k+2];
-
-		buffer[2*k+1]=0xffffffff;                    /* mark as copied */
-	}
-	
-	/* The command line */
-	tag = tag_next(tag);
-	tag->hdr.tag = ATAG_CMDLINE;
-	
-	c=(unsigned char *)(&buffer[34]);
-	j=0;
-	while (*c) tag->u.cmdline.cmdline[j++]=*c++;
-
-	tag->u.cmdline.cmdline[j]=0;
-	tag->hdr.size = (j + 7 + sizeof(struct tag_header)) >> 2;
-
-	/* Hardware revision */
-	tag = tag_next(tag);
-	tag->hdr.tag = ATAG_REVISION;
-	tag->hdr.size = tag_size(tag_revision);
-	tag->u.revision.rev = ((unsigned char) buffer[33])-'0';
-
-	/* End of the taglist */
-	tag = tag_next(tag);
-	tag->hdr.tag = 0;
-	tag->hdr.size = 0;
-}
-
-
-typedef int (*ofw_handle_t)(void *);
-
-/* Everything below is called with a wrong MMU setting.
- * This means: no string constants, no initialization of
- * arrays, no global variables! This is ugly but I didn't
- * want to write this in assembler :-)
- */
-
-int
-of_decode_int(const unsigned char *p)
-{
-	unsigned int i = *p++ << 8;
-	i = (i + *p++) << 8;
-	i = (i + *p++) << 8;
-	return (i + *p);
-}
-  
-int
-OF_finddevice(ofw_handle_t openfirmware, char *name)
-{
-	unsigned int args[8];
-	char service[12];
-
-	service[0]='f';
-	service[1]='i';
-	service[2]='n';
-	service[3]='d';
-	service[4]='d';
-	service[5]='e';
-	service[6]='v';
-	service[7]='i';
-	service[8]='c';
-	service[9]='e';
-	service[10]='\0';
-
-	args[0]=(unsigned int)service;
-	args[1]=1;
-	args[2]=1;
-	args[3]=(unsigned int)name;
-
-	if (openfirmware(args) == -1)
-		return -1;
-	return args[4];
-}
-
-int
-OF_getproplen(ofw_handle_t openfirmware, int handle, char *prop)
-{
-	unsigned int args[8];
-	char service[12];
-
-	service[0]='g';
-	service[1]='e';
-	service[2]='t';
-	service[3]='p';
-	service[4]='r';
-	service[5]='o';
-	service[6]='p';
-	service[7]='l';
-	service[8]='e';
-	service[9]='n';
-	service[10]='\0';
-
-	args[0] = (unsigned int)service;
-	args[1] = 2;
-	args[2] = 1;
-	args[3] = (unsigned int)handle;
-	args[4] = (unsigned int)prop;
-
-	if (openfirmware(args) == -1)
-		return -1;
-	return args[5];
-}
-  
-int
-OF_getprop(ofw_handle_t openfirmware, int handle, char *prop, void *buf, unsigned int buflen)
-{
-	unsigned int args[8];
-	char service[8];
-
-	service[0]='g';
-	service[1]='e';
-	service[2]='t';
-	service[3]='p';
-	service[4]='r';
-	service[5]='o';
-	service[6]='p';
-	service[7]='\0';
-
-	args[0] = (unsigned int)service;
-	args[1] = 4;
-	args[2] = 1;
-	args[3] = (unsigned int)handle;
-	args[4] = (unsigned int)prop;
-	args[5] = (unsigned int)buf;
-	args[6] = buflen;
-
-	if (openfirmware(args) == -1)
-		return -1;
-	return args[7];
-}
-  
-asmlinkage void ofw_init(ofw_handle_t o, int *nomr, int *pointer)
-{
-	int phandle,i,mem_len,buffer[32];
-	char temp[15];
-  
-	temp[0]='/';
-	temp[1]='m';
-	temp[2]='e';
-	temp[3]='m';
-	temp[4]='o';
-	temp[5]='r';
-	temp[6]='y';
-	temp[7]='\0';
-
-	phandle=OF_finddevice(o,temp);
-
-	temp[0]='r';
-	temp[1]='e';
-	temp[2]='g';
-	temp[3]='\0';
-
-	mem_len = OF_getproplen(o,phandle, temp);
-	OF_getprop(o,phandle, temp, buffer, mem_len);
-	*nomr=mem_len >> 3;
-
-	for (i=0; i<=mem_len/4; i++) pointer[i]=of_decode_int((const unsigned char *)&buffer[i]);
-
-	temp[0]='/';
-	temp[1]='c';
-	temp[2]='h';
-	temp[3]='o';
-	temp[4]='s';
-	temp[5]='e';
-	temp[6]='n';
-	temp[7]='\0';
-
-	phandle=OF_finddevice(o,temp);
-
-	temp[0]='b';
-	temp[1]='o';
-	temp[2]='o';
-	temp[3]='t';
-	temp[4]='a';
-	temp[5]='r';
-	temp[6]='g';
-	temp[7]='s';
-	temp[8]='\0';
-
-	mem_len = OF_getproplen(o,phandle, temp);
-	OF_getprop(o,phandle, temp, buffer, mem_len);
-	if (mem_len > 128) mem_len=128;
-	for (i=0; i<=mem_len/4; i++) pointer[i+33]=buffer[i];
-	pointer[i+33]=0;
-
-	temp[0]='/';
-	temp[1]='\0';
-	phandle=OF_finddevice(o,temp);
-	temp[0]='b';
-	temp[1]='a';
-	temp[2]='n';
-	temp[3]='n';
-	temp[4]='e';
-	temp[5]='r';
-	temp[6]='-';
-	temp[7]='n';
-	temp[8]='a';
-	temp[9]='m';
-	temp[10]='e';
-	temp[11]='\0';
-	mem_len = OF_getproplen(o,phandle, temp);
-	OF_getprop(o,phandle, temp, buffer, mem_len);
-	(unsigned char) pointer[32] = ((unsigned char *) buffer)[mem_len-2];
-}

arch/arm26/boot/compressed/uncompress.h

 /*
- *  linux/include/asm-arm/arch-arc/uncompress.h
  *
  *  Copyright (C) 1996 Russell King
  *

arch/arm26/boot/compressed/vmlinux.lds.in

 /*
- *  linux/arch/arm/boot/compressed/vmlinux.lds.in
+ *  linux/arch/arm26/boot/compressed/vmlinux.lds.in
  *
  *  Copyright (C) 2000 Russell King
  *

arch/arm26/boot/install.sh

 #!/bin/sh
 #
-# arch/arm/boot/install.sh
+# arch/arm26/boot/install.sh
 #
 # 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
@@ -10,7 +10,7 @@
 #
 # Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
 # Adapted from code in arch/i386/boot/install.sh by Russell King
-# Stolen from arch/arm/boot/install.sh by Ian Molton
+# Stolen from arm32 by Ian Molton
 #
 # "make install" script for arm architecture
 #

arch/arm26/kernel/Makefile

@@ -2,17 +2,16 @@
 # Makefile for the linux kernel.
 #
 
-ENTRY_OBJ = entry.o
-
 # Object file lists.
 
-obj-y		:= compat.o dma.o entry.o irq.o   \
-		   process.o ptrace.o semaphore.o setup.o signal.o sys_arm.o \
-		   time.o traps.o ecard.o time-acorn.o dma.o \
-		   ecard.o fiq.o time.o
+AFLAGS_head.o           := -DTEXTADDR=$(TEXTADDR)
+
+obj-y		:= compat.o dma.o entry.o irq.o process.o ptrace.o       \
+		   semaphore.o setup.o signal.o sys_arm.o time.o traps.o \
+		   ecard.o dma.o ecard.o fiq.o time.o
+
+extra-y		:= head.o init_task.o vmlinux.lds
 
 obj-$(CONFIG_FIQ)		+= fiq.o
 obj-$(CONFIG_MODULES)		+= armksyms.o
 
-extra-y := init_task.o vmlinux.lds
-

arch/arm26/kernel/armksyms.c

@@ -7,6 +7,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/module.h>
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/user.h>
@@ -27,8 +28,6 @@
 #include <asm/elf.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/pgalloc.h>
-//#include <asm/proc-fns.h>
 #include <asm/processor.h>
 #include <asm/semaphore.h>
 #include <asm/system.h>
@@ -69,8 +68,9 @@ extern void fp_enter(void);
 /*
  * This has a special calling convention; it doesn't
  * modify any of the usual registers, except for LR.
+ * FIXME - we used to use our own local version - looks to be in kernel/softirq now
  */
-extern void __do_softirq(void);
+//extern void __do_softirq(void);
 
 #define EXPORT_SYMBOL_ALIAS(sym,orig)		\
  const char __kstrtab_##sym[]			\
@@ -95,7 +95,7 @@ EXPORT_SYMBOL(ret_from_exception);
 EXPORT_SYMBOL(kd_mksound);
 #endif
 
-EXPORT_SYMBOL(__do_softirq);
+//EXPORT_SYMBOL(__do_softirq);
 
 	/* platform dependent support */
 EXPORT_SYMBOL(dump_thread);
@@ -213,12 +213,6 @@ EXPORT_SYMBOL(sys_open);
 EXPORT_SYMBOL(sys_exit);
 EXPORT_SYMBOL(sys_wait4);
 
-	/* semaphores */
-EXPORT_SYMBOL(__down_failed);
-EXPORT_SYMBOL(__down_interruptible_failed);
-EXPORT_SYMBOL(__down_trylock_failed);
-EXPORT_SYMBOL(__up_wakeup);
-
 EXPORT_SYMBOL(get_wchan);
 
 #ifdef CONFIG_PREEMPT

include/asm-arm26/calls.h → arch/arm26/kernel/calls.S

 /*
- *  linux/arch/arm26/lib/calls.h
+ *  linux/arch/arm26/kernel/calls.S
  *
  *  Copyright (C) 2003 Ian Molton
  *
@@ -8,8 +8,11 @@
  * published by the Free Software Foundation.
  *
  *  FIXME
- *  This file is included twice in entry-common.S which may not be necessary
+ *  This file is included twice in entry.S which may not be necessary
  */
+
+//FIXME - clearly NR_syscalls is never defined here
+
 #ifndef NR_syscalls
 #define NR_syscalls 256
 #else

arch/arm26/kernel/compat.c

 /*
- *  linux/arch/arm/kernel/compat.c
+ *  linux/arch/arm26/kernel/compat.c
  *
  *  Copyright (C) 2001 Russell King
  *                2003 Ian Molton

arch/arm26/kernel/dma.c

 /*
- *  linux/arch/arm/kernel/dma.c
+ *  linux/arch/arm26/kernel/dma.c
  *
  *  Copyright (C) 1995-2000 Russell King
  *                2003      Ian Molton
@@ -24,8 +24,6 @@
 
 spinlock_t dma_spin_lock = SPIN_LOCK_UNLOCKED;
 
-#if MAX_DMA_CHANNELS > 0
-
 static dma_t dma_chan[MAX_DMA_CHANNELS];
 
 /*
@@ -260,33 +258,6 @@ void __init init_dma(void)
 	arch_dma_init(dma_chan);
 }
 
-#else
-
-int request_dma(dmach_t channel, const char *device_id)
-{
-	return -EINVAL;
-}
-
-int get_dma_residue(dmach_t channel)
-{
-	return 0;
-}
-
-#define GLOBAL_ALIAS(_a,_b) asm (".set " #_a "," #_b "; .globl " #_a)
-GLOBAL_ALIAS(disable_dma, get_dma_residue);
-GLOBAL_ALIAS(enable_dma, get_dma_residue);
-GLOBAL_ALIAS(free_dma, get_dma_residue);
-GLOBAL_ALIAS(get_dma_list, get_dma_residue);
-GLOBAL_ALIAS(set_dma_mode, get_dma_residue);
-GLOBAL_ALIAS(set_dma_page, get_dma_residue);
-GLOBAL_ALIAS(set_dma_count, get_dma_residue);
-GLOBAL_ALIAS(set_dma_addr, get_dma_residue);
-GLOBAL_ALIAS(set_dma_sg, get_dma_residue);
-GLOBAL_ALIAS(set_dma_speed, get_dma_residue);
-GLOBAL_ALIAS(init_dma, get_dma_residue);
-
-#endif
-
 EXPORT_SYMBOL(request_dma);
 EXPORT_SYMBOL(free_dma);
 EXPORT_SYMBOL(enable_dma);

arch/arm26/kernel/ecard.c

@@ -42,9 +42,7 @@
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/pgalloc.h>
 #include <asm/mmu_context.h>
-#include <asm/irq.h>
 #include <asm/irqchip.h>
 #include <asm/tlbflush.h>
 
@@ -137,46 +135,6 @@ ecard_task_readbytes(struct ecard_request *req)
 	unsigned int len = req->length;
 	unsigned int off = req->address;
 
-	if (req->ec->slot_no == 8) {
-		/*
-		 * The card maintains an index which increments the address
-		 * into a 4096-byte page on each access.  We need to keep
-		 * track of the counter.
-		 */
-		static unsigned int index;
-		unsigned int page;
-
-		page = (off >> 12) * 4;
-		if (page > 256 * 4)
-			return;
-
-		off &= 4095;
-
-		/*
-		 * If we are reading offset 0, or our current index is
-		 * greater than the offset, reset the hardware index counter.
-		 */
-		if (off == 0 || index > off) {
-			*base_addr = 0;
-			index = 0;
-		}
-
-		/*
-		 * Increment the hardware index counter until we get to the
-		 * required offset.  The read bytes are discarded.
-		 */
-		while (index < off) {
-			unsigned char byte;
-			byte = base_addr[page];
-			index += 1;
-		}
-
-		while (len--) {
-			*buf++ = base_addr[page];
-			index += 1;
-		}
-	} else {
-
 	if (!req->use_loader || !req->ec->loader) {
 		off *= 4;
 		while (len--) {
@@ -194,8 +152,6 @@ ecard_task_readbytes(struct ecard_request *req)
 						   req->ec->loader);
 		}
 	}
-	}
-
 }
 
 static void ecard_do_request(struct ecard_request *req)
@@ -466,7 +422,7 @@ ecard_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
 	for (ec = cards; ec; ec = ec->next) {
 		int pending;
 
-		if (!ec->claimed || ec->irq == NO_IRQ || ec->slot_no == 8)
+		if (!ec->claimed || ec->irq == NO_IRQ)
 			continue;
 
 		if (ec->ops && ec->ops->irqpending)
@@ -494,22 +450,15 @@ unsigned int ecard_address(ecard_t *ec, card_type_t type, card_speed_t speed)
 	unsigned long address = 0;
 	int slot = ec->slot_no;
 
-	if (ec->slot_no == 8)
-		return 0;
-
 	ectcr &= ~(1 << slot);
 
 	switch (type) {
 	case ECARD_MEMC:
-		if (slot < 4)
 		address = IO_EC_MEMC_BASE + (slot << 12);
 		break;
 
 	case ECARD_IOC:
-		if (slot < 4)
-			address = IO_EC_IOC_BASE + (slot << 12);
-		if (address)
-			address +=  speed << 17;
+		address = IO_EC_IOC_BASE + (slot << 12) + (speed << 17);
 		break;
 
 	default:
@@ -592,11 +541,9 @@ static void __init ecard_init_resources(struct expansion_card *ec)
 	unsigned int slot = ec->slot_no;
 	int i;
 
-	if (slot < 4) {
 	ec_set_resource(ec, ECARD_RES_MEMC,
 			PODSLOT_MEMC_BASE + (slot << 14),
 			PODSLOT_MEMC_SIZE, IORESOURCE_MEM);
-	}
 
 	for (i = 0; i < ECARD_RES_IOCSYNC - ECARD_RES_IOCSLOW; i++) {
 		ec_set_resource(ec, i + ECARD_RES_IOCSLOW,
@@ -739,12 +686,10 @@ ecard_probe(int slot, card_type_t type)
 	/*
 	 * hook the interrupt handlers
 	 */
-	if (slot < 8) {
 	ec->irq = 32 + slot;
 	set_irq_chip(ec->irq, &ecard_chip);
 	set_irq_handler(ec->irq, do_level_IRQ);
 	set_irq_flags(ec->irq, IRQF_VALID);
-	}
 
 	for (ecp = &cards; *ecp; ecp = &(*ecp)->next);
 
@@ -777,7 +722,7 @@ static int __init ecard_init(void)
 
 	printk("Probing expansion cards\n");
 
-	for (slot = 0; slot < 4; slot ++) {
+	for (slot = 0; slot < MAX_ECARDS; slot ++) {
 		ecard_probe(slot, ECARD_IOC);
 	}
 

arch/arm26/machine/head.S → arch/arm26/kernel/head.S

 /*
- *  linux/arch/arm/kernel/head-armo.S
+ *  linux/arch/arm26/kernel/head.S
  *
  *  Copyright (C) 1994-2000 Russell King
  *  Copyright (C) 2003 Ian Molton
@@ -22,10 +22,13 @@
  */
 		.section ".init.text",#alloc,#execinstr
 ENTRY(stext)
-__entry:	cmp	pc, #0x02000000
+
+__entry:
+		cmp	pc, #0x02000000
 		ldrlt	pc, LC0			@ if 0x01800000, call at 0x02080000
 		teq	r0, #0                  @ Check for old calling method
 		blne	oldparams		@ Move page if old
+
 		adr	r0, LC0
 		ldmib	r0, {r2-r5, sp}		@ Setup stack (and fetch other values)
 
@@ -49,7 +52,6 @@ __entry:	cmp	pc, #0x02000000
                cmp     r4, r5
                blt     1b
 #endif
-
 		mov	fp, #0
 		b	start_kernel
 

arch/arm26/kernel/init_task.c

 /*
- *  linux/arch/arm/kernel/init_task.c
+ *  linux/arch/arm26/kernel/init_task.c
  *
  * Copyright (C) 2003 Ian Molton
  *
@@ -29,7 +29,9 @@ EXPORT_SYMBOL(init_mm);
  * We need to make sure that this is 8192-byte aligned due to the
  * way process stacks are handled. This is done by making sure
  * the linker maps this in the .text segment right after head.S,
- * and making head.S ensure the proper alignment.
+ * and making the linker scripts ensure the proper alignment.
+ *
+ * FIXME - should this be 32K alignment on arm26?
  *
  * The things we do for performance...
  */

arch/arm26/kernel/process.c

@@ -67,42 +67,22 @@ static int __init hlt_setup(char *__unused)
 __setup("nohlt", nohlt_setup);
 __setup("hlt", hlt_setup);
 
-/*
- * The following aren't currently used.
- */
-void (*pm_idle)(void);
-void (*pm_power_off)(void);
-
 /*
  * This is our default idle handler.  We need to disable
  * interrupts here to ensure we don't miss a wakeup call.
  */
-void default_idle(void)
-{
-	local_irq_disable();
-	if (!need_resched() && !hlt_counter)
-	local_irq_enable();
-}
-
-/*
- * The idle thread.  We try to conserve power, while trying to keep
- * overall latency low.  The architecture specific idle is passed
- * a value to indicate the level of "idleness" of the system.
- */
 void cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	preempt_disable();
 	while (1) {
-		void (*idle)(void) = pm_idle;
-		if (!idle)
-			idle = default_idle;
-		leds_event(led_idle_start);
-		while (!need_resched())
-			idle();
-		leds_event(led_idle_end);
-		schedule();
+		while (!need_resched()) {
+			local_irq_disable();
+			if (!need_resched() && !hlt_counter)
+				local_irq_enable();
 		}
+	}
+	schedule();
 }
 
 static char reboot_mode = 'h';
@@ -115,20 +95,15 @@ int __init reboot_setup(char *str)
 
 __setup("reboot=", reboot_setup);
 
+/* ARM26 cant do these but we still need to define them. */
 void machine_halt(void)
 {
-	leds_event(led_halted);
 }
-
-EXPORT_SYMBOL(machine_halt);
-
 void machine_power_off(void)
 {
-	leds_event(led_halted);
-	if (pm_power_off)
-		pm_power_off();
 }
 
+EXPORT_SYMBOL(machine_halt);
 EXPORT_SYMBOL(machine_power_off);
 
 void machine_restart(char * __unused)
@@ -306,7 +281,7 @@ void release_thread(struct task_struct *dead_task)
 asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
 
 int
-copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
+copy_thread(int nr, unsigned long clone_flags, unsigned long stack_start,
 	    unsigned long unused, struct task_struct *p, struct pt_regs *regs)
 {
 	struct thread_info *thread = p->thread_info;
@@ -315,7 +290,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
 	childregs = __get_user_regs(thread);
 	*childregs = *regs;
 	childregs->ARM_r0 = 0;
-	childregs->ARM_sp = esp;
+	childregs->ARM_sp = stack_start;
 
 	memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save));
 	thread->cpu_context.sp = (unsigned long)childregs;
@@ -367,35 +342,42 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
 }
 
 /*
- * This is the mechanism for creating a new kernel thread.
- *
- * NOTE! Only a kernel-only process(ie the swapper or direct descendants
- * who haven't done an "execve()") should use this: it will work within
- * a system call from a "real" process, but the process memory space will
- * not be free'd until both the parent and the child have exited.
- * FIXME - taken from arm32
+ * Shuffle the argument into the correct register before calling the
+ * thread function.  r1 is the thread argument, r2 is the pointer to
+ * the thread function, and r3 points to the exit function.
+ * FIXME - make sure this is right - the older code used to zero fp
+ * and cause the parent to call sys_exit (do_exit in this version)
+ */
+extern void kernel_thread_helper(void);
+
+asm(    ".section .text\n"
+"       .align\n"
+"       .type   kernel_thread_helper, #function\n"
+"kernel_thread_helper:\n"
+"       mov     r0, r1\n"
+"       mov     lr, r3\n"
+"       mov     pc, r2\n"
+"       .size   kernel_thread_helper, . - kernel_thread_helper\n"
+"       .previous");
+
+/*
+ * Create a kernel thread.
  */
 pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
 {
-        register unsigned int r0 asm("r0") = flags | CLONE_VM | CLONE_UNTRACED;
-        register unsigned int r1 asm("r1") = 0;
-        register pid_t __ret asm("r0");
-
-        __asm__ __volatile__(
-        __syscall(clone)"       @ kernel_thread sys_clone       \n\
-        movs    %0, r0          @ if we are the child           \n\
-        bne     1f                                              \n\
-        mov     fp, #0          @ ensure that fp is zero        \n\
-        mov     r0, %4                                          \n\
-        mov     lr, pc                                          \n\
-        mov     pc, %3                                          \n\
-        b       sys_exit                                        \n\
-1:      "
-        : "=r" (__ret)
-        : "0" (r0), "r" (r1), "r" (fn), "r" (arg)
-        : "lr");
-        return __ret;
+        struct pt_regs regs;
+
+        memset(&regs, 0, sizeof(regs));
+
+        regs.ARM_r1 = (unsigned long)arg;
+        regs.ARM_r2 = (unsigned long)fn;
+        regs.ARM_r3 = (unsigned long)do_exit;
+        regs.ARM_pc = (unsigned long)kernel_thread_helper | MODE_SVC26;
+
+        return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
 }
+EXPORT_SYMBOL(kernel_thread);
+
 
 unsigned long get_wchan(struct task_struct *p)
 {

arch/arm26/kernel/semaphore.c

@@ -12,6 +12,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/module.h>
 #include <linux/config.h>
 #include <linux/sched.h>
 #include <linux/errno.h>
@@ -179,7 +180,7 @@ int __down_trylock(struct semaphore * sem)
  * registers (r0 to r3 and lr), but not ip, as we use it as a return
  * value in some cases..
  */
-asm("	.section .sched.text			\n\
+asm("	.section .sched.text , #alloc, #execinstr	\n\
 	.align	5				\n\
 	.globl	__down_failed			\n\
 __down_failed:					\n\
@@ -215,3 +216,8 @@ __up_wakeup:					\n\
 	ldmfd	sp!, {r0 - r3, pc}^		\n\
 	");
 
+EXPORT_SYMBOL(__down_failed);
+EXPORT_SYMBOL(__down_interruptible_failed);
+EXPORT_SYMBOL(__down_trylock_failed);
+EXPORT_SYMBOL(__up_wakeup);
+

arch/arm26/kernel/setup.c

 /*
- *  linux/arch/arm/kernel/setup.c
+ *  linux/arch/arm26/kernel/setup.c
  *
  *  Copyright (C) 1995-2001 Russell King
  *  Copyright (C) 2003 Ian Molton
@@ -119,7 +119,7 @@ static void __init setup_processor(void)
 	/*
 	 * locate processor in the list of supported processor
 	 * types.  The linker builds this table for us from the
-	 * entries in arch/arm/mm/proc-*.S
+	 * entries in arch/arm26/mm/proc-*.S
 	 */
 	for (list = &__proc_info_begin; list < &__proc_info_end ; list++)
 		if ((processor_id & list->cpu_mask) == list->cpu_val)

arch/arm26/kernel/sys_arm.c

@@ -13,6 +13,7 @@
  *  have a non-standard calling sequence on the Linux/arm
  *  platform.
  */
+#include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -281,3 +282,43 @@ asmlinkage int sys_execve(char *filenamei, char **argv, char **envp, struct pt_r
 out:
 	return error;
 }
+
+/* FIXME - see if this is correct for arm26 */
+long execve(const char *filename, char **argv, char **envp)
+{
+	struct pt_regs regs;
+        int ret;
+         memset(&regs, 0, sizeof(struct pt_regs));
+        ret = do_execve((char *)filename, (char __user * __user *)argv,                         (char __user * __user *)envp, &regs);
+        if (ret < 0)
+                goto out;
+
+        /*
+         * Save argc to the register structure for userspace.
+         */
+        regs.ARM_r0 = ret;
+
+        /*
+         * We were successful.  We won't be returning to our caller, but
+         * instead to user space by manipulating the kernel stack.
+         */
+        asm(    "add    r0, %0, %1\n\t"
+                "mov    r1, %2\n\t"
+                "mov    r2, %3\n\t"
+                "bl     memmove\n\t"    /* copy regs to top of stack */
+                "mov    r8, #0\n\t"     /* not a syscall */
+                "mov    r9, %0\n\t"     /* thread structure */
+                "mov    sp, r0\n\t"     /* reposition stack pointer */
+                "b      ret_to_user"
+                :
+                : "r" (current_thread_info()),
+                  "Ir" (THREAD_SIZE - 8 - sizeof(regs)),
+                  "r" (&regs),
+                  "Ir" (sizeof(regs))
+                : "r0", "r1", "r2", "r3", "ip", "memory");
+
+ out:
+        return ret;
+}
+
+EXPORT_SYMBOL(execve);

arch/arm26/kernel/time-acorn.c

-/*
- *  linux/arch/arm/kernel/time-acorn.c
- *
- *  Copyright (c) 1996-2000 Russell King.
- *
- * 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.
- *
- *  Changelog:
- *   24-Sep-1996	RMK	Created
- *   10-Oct-1996	RMK	Brought up to date with arch-sa110eval
- *   04-Dec-1997	RMK	Updated for new arch/arm/time.c
- *   13-May-2003        IM      Brought over to ARM26
- */
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/ioc.h>
-
-extern unsigned long (*gettimeoffset)(void);
-
-static unsigned long ioctime_gettimeoffset(void)
-{
-	unsigned int count1, count2, status;
-        long offset;
-
-        ioc_writeb (0, IOC_T0LATCH);
-        barrier ();
-        count1 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
-        barrier ();
-        status = ioc_readb(IOC_IRQREQA);
-        barrier ();
-        ioc_writeb (0, IOC_T0LATCH);
-        barrier ();
-        count2 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
-
-        offset = count2;
-        if (count2 < count1) {
-                /*
-                 * We have not had an interrupt between reading count1
-                 * and count2.
-                 */
-                if (status & (1 << 5))
-                        offset -= LATCH;
-        } else if (count2 > count1) {
-                /*
-                 * We have just had another interrupt between reading
-                 * count1 and count2.
-                 */
-                offset -= LATCH;
-        }
-
-        offset = (LATCH - offset) * (tick_nsec / 1000);
-        return (offset + LATCH/2) / LATCH;
-}
-
-void __init ioctime_init(void)
-{
-	ioc_writeb(LATCH & 255, IOC_T0LTCHL);
-	ioc_writeb(LATCH >> 8, IOC_T0LTCHH);
-	ioc_writeb(0, IOC_T0GO);
-
-	gettimeoffset = ioctime_gettimeoffset;
-}

arch/arm26/kernel/time.c

@@ -32,7 +32,7 @@
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/leds.h>
+#include <asm/ioc.h>
 
 u64 jiffies_64 = INITIAL_JIFFIES;
 
@@ -56,16 +56,53 @@ static int dummy_set_rtc(void)
  */
 int (*set_rtc)(void) = dummy_set_rtc;
 
-static unsigned long dummy_gettimeoffset(void)
+/*
+ * Get time offset based on IOCs timer.
+ * FIXME - if this is called with interrutps off, why the shennanigans
+ * below ?
+ */
+static unsigned long gettimeoffset(void)
 {
-	return 0;
+        unsigned int count1, count2, status;
+        long offset;
+
+        ioc_writeb (0, IOC_T0LATCH);
+        barrier ();
+        count1 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
+        barrier ();
+        status = ioc_readb(IOC_IRQREQA);
+        barrier ();
+        ioc_writeb (0, IOC_T0LATCH);
+        barrier ();
+        count2 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
+
+        offset = count2;
+        if (count2 < count1) {
+                /*
+                 * We have not had an interrupt between reading count1
+                 * and count2.
+                 */
+                if (status & (1 << 5))
+                        offset -= LATCH;
+        } else if (count2 > count1) {
+                /*
+                 * We have just had another interrupt between reading
+                 * count1 and count2.
+                 */
+                offset -= LATCH;
+        }
+
+        offset = (LATCH - offset) * (tick_nsec / 1000);
+        return (offset + LATCH/2) / LATCH;
 }
 
 /*
- * hook for getting the time offset.  Note that it is
- * always called with interrupts disabled.
+ * Scheduler clock - returns current time in nanosec units.
  */
-unsigned long (*gettimeoffset)(void) = dummy_gettimeoffset;
+unsigned long long sched_clock(void)
+{
+	return (unsigned long long)jiffies * (1000000000 / HZ);
+}
 
 static unsigned long next_rtc_update;
 
@@ -187,7 +224,10 @@ extern void ioctime_init(void);
  */
 void __init time_init(void)
 {
-        ioctime_init();
+	ioc_writeb(LATCH & 255, IOC_T0LTCHL);
+        ioc_writeb(LATCH >> 8, IOC_T0LTCHH);
+        ioc_writeb(0, IOC_T0GO);
+
 
         setup_irq(IRQ_TIMER, &timer_irq);
 }

arch/arm26/kernel/traps.c

 /*
- *  linux/arch/arm/kernel/traps.c
+ *  linux/arch/arm26/kernel/traps.c
  *
  *  Copyright (C) 1995-2002 Russell King
  *  Fragments that appear the same as linux/arch/i386/kernel/traps.c (C) Linus Torvalds
@@ -10,9 +10,11 @@
  * published by the Free Software Foundation.
  *
  *  'traps.c' handles hardware exceptions after we have saved some state in
- *  'linux/arch/arm/lib/traps.S'.  Mostly a debugging aid, but will probably
+ *  'linux/arch/arm26/lib/traps.S'.  Mostly a debugging aid, but will probably
  *  kill the offending process.
  */
+
+#include <linux/module.h>
 #include <linux/config.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -28,7 +30,6 @@
 
 #include <asm/atomic.h>
 #include <asm/io.h>
-#include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -134,8 +135,6 @@ static void dump_instr(struct pt_regs *regs)
 	dump_mem("Stack: ", sp, 8192+(unsigned long)tsk->thread_info);
 }
 
-EXPORT_SYMBOL(dump_stack);
-
 void dump_stack(void)
 {
 #ifdef CONFIG_DEBUG_ERRORS
@@ -143,6 +142,8 @@ void dump_stack(void)
 #endif
 }
 
+EXPORT_SYMBOL(dump_stack);
+
 //FIXME - was a static fn
 void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
 {
@@ -425,7 +426,6 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
 		return 0;
 
 	case NR(usr26):
-	case NR(usr32):
 		break;
 
 	default:

arch/arm26/kernel/vmlinux-arm26-xip.lds.in

@@ -64,6 +64,7 @@ SECTIONS
 		_text = .;		/* Text and read-only data	*/
 			*(.text)
 			SCHED_TEXT
+			LOCK_TEXT       /* FIXME - borrowed from arm32 - check*/
 			*(.fixup)
 			*(.gnu.warning)
 			*(.rodata)
@@ -91,9 +92,11 @@ SECTIONS
 	_sdata = .;
 
 	.data : {
+		. = ALIGN(8192);
 		/*
 		 * first, the init thread union, aligned
-		 * to an 8192 byte boundary.
+		 * to an 8192 byte boundary. (see arm26/kernel/init_task.c)
+		 * FIXME - sould this be 32K aligned on arm26?
 		 */
 		*(.init.task)
 

arch/arm26/kernel/vmlinux-arm26.lds.in

@@ -65,6 +65,7 @@ SECTIONS
 		_text = .;		/* Text and read-only data	*/
 			*(.text)
 			SCHED_TEXT
+			LOCK_TEXT
 			*(.fixup)
 			*(.gnu.warning)
 			*(.rodata)
@@ -90,7 +91,7 @@ SECTIONS
 	.data : {
 		/*
 		 * first, the init task union, aligned
-		 * to an 8192 byte boundary.
+		 * to an 8192 byte boundary. (see arm26/kernel/init_task.c)
 		 */
 		*(.init.task)
 

arch/arm26/lib/Makefile

 #
-# linux/arch/arm/lib/Makefile
+# linux/arch/arm26/lib/Makefile
 #
 # Copyright (C) 1995-2000 Russell King
 #
@@ -13,9 +13,9 @@ lib-y		:= backtrace.o changebit.o csumipv6.o csumpartial.o   \
 		   putuser.o ashldi3.o ashrdi3.o lshrdi3.o muldi3.o   \
 		   ucmpdi2.o udivdi3.o lib1funcs.o ecard.o io-acorn.o \
 		   floppydma.o io-readsb.o io-writesb.o io-writesl.o  \
-		   uaccess-kernel.o uaccess-user.o io-readsw-armv3.o  \
-		   io-writesw-armv3.o io-readsl-armv3.o ecard.o       \
-		   io-acorn.o floppydma.o
+		   uaccess-kernel.o uaccess-user.o io-readsw.o        \
+		   io-writesw.o io-readsl.o ecard.o io-acorn.o        \
+		   floppydma.o
 
 lib-n		:=
 

arch/arm26/lib/backtrace.S

 /*
- *  linux/arch/arm/lib/backtrace.S
+ *  linux/arch/arm26/lib/backtrace.S
  *
  *  Copyright (C) 1995, 1996 Russell King
  *

arch/arm26/lib/changebit.S

 /*
- *  linux/arch/arm/lib/changebit.S
+ *  linux/arch/arm26/lib/changebit.S
  *
  *  Copyright (C) 1995-1996 Russell King
  *

arch/arm26/lib/clearbit.S

 /*
- *  linux/arch/arm/lib/clearbit.S
+ *  linux/arch/arm26/lib/clearbit.S
  *
  *  Copyright (C) 1995-1996 Russell King
  *

arch/arm26/lib/copy_page.S

 /*
- *  linux/arch/arm/lib/copypage.S
+ *  linux/arch/arm26/lib/copypage.S
  *
  *  Copyright (C) 1995-1999 Russell King
  *

arch/arm26/lib/csumipv6.S

 /*
- *  linux/arch/arm/lib/csumipv6.S
+ *  linux/arch/arm26/lib/csumipv6.S
  *
  *  Copyright (C) 1995-1998 Russell King
  *

arch/arm26/lib/csumpartial.S

 /*
- *  linux/arch/arm/lib/csumpartial.S
+ *  linux/arch/arm26/lib/csumpartial.S
  *
  *  Copyright (C) 1995-1998 Russell King
  *

arch/arm26/lib/csumpartialcopy.S

 /*
- *  linux/arch/arm/lib/csumpartialcopy.S
+ *  linux/arch/arm26/lib/csumpartialcopy.S
  *
  *  Copyright (C) 1995-1998 Russell King
  *

arch/arm26/lib/csumpartialcopygeneric.S

 /*
- *  linux/arch/arm/lib/csumpartialcopygeneric.S
+ *  linux/arch/arm26/lib/csumpartialcopygeneric.S
  *
  *  Copyright (C) 1995-2001 Russell King
  *

arch/arm26/lib/delay.S

 /*
- *  linux/arch/arm/lib/delay.S
+ *  linux/arch/arm26/lib/delay.S
  *
  *  Copyright (C) 1995, 1996 Russell King
  *

arch/arm26/lib/ecard.S

 /*
- *  linux/arch/arm/lib/ecard.S
+ *  linux/arch/arm26/lib/ecard.S
  *
  *  Copyright (C) 1995, 1996 Russell King
  *

arch/arm26/lib/floppydma.S

 /*
- *  linux/arch/arm/lib/floppydma.S
+ *  linux/arch/arm26/lib/floppydma.S
  *
  *  Copyright (C) 1995, 1996 Russell King
  *

arch/arm26/lib/getuser.S

 /*
- *  linux/arch/arm/lib/getuser.S
+ *  linux/arch/arm26/lib/getuser.S
  *
  *  Copyright (C) 2001 Russell King
  *
@@ -28,6 +28,7 @@
  */
 #include <asm/asm_offsets.h>
 #include <asm/thread_info.h>
+#include <asm/errno.h>
 
         .global __get_user_1
 __get_user_1:
@@ -98,7 +99,7 @@ __get_user_bad_8:
         mov     r2, #0
 __get_user_bad:
         mov     r1, #0
-        mov     r0, #-14
+        mov     r0, #-EFAULT
         ldmfd   sp!, {pc}^
 
 .section __ex_table, "a"

arch/arm26/lib/io-acorn.S

 /*
- *  linux/arch/arm/lib/io-acorn.S
+ *  linux/arch/arm26/lib/io-acorn.S
  *
  *  Copyright (C) 1995, 1996 Russell King
  *

arch/arm26/lib/io-readsb.S

 /*
- *  linux/arch/arm/lib/io-readsb.S
+ *  linux/arch/arm26/lib/io-readsb.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/io-readsl-armv3.S → arch/arm26/lib/io-readsl.S

 /*
- *  linux/arch/arm/lib/io-readsl-armv3.S
+ *  linux/arch/arm26/lib/io-readsl.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/io-readsw-armv3.S → arch/arm26/lib/io-readsw.S

 /*
- *  linux/arch/arm/lib/io-readsw-armv3.S
+ *  linux/arch/arm26/lib/io-readsw.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/io-writesb.S

 /*
- *  linux/arch/arm/lib/io-writesb.S
+ *  linux/arch/arm26/lib/io-writesb.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/io-writesl.S

 /*
- *  linux/arch/arm/lib/io-writesl.S
+ *  linux/arch/arm26/lib/io-writesl.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/io-writesw-armv3.S → arch/arm26/lib/io-writesw.S

 /*
- *  linux/arch/arm/lib/io-writesw-armv3.S
+ *  linux/arch/arm26/lib/io-writesw.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/memchr.S

 /*
- *  linux/arch/arm/lib/memchr.S
+ *  linux/arch/arm26/lib/memchr.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/memcpy.S

 /*
- *  linux/arch/arm/lib/memcpy.S
+ *  linux/arch/arm26/lib/memcpy.S
  *
  *  Copyright (C) 1995-1999 Russell King
  *

arch/arm26/lib/memset.S

 /*
- *  linux/arch/arm/lib/memset.S
+ *  linux/arch/arm26/lib/memset.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/memzero.S

 /*
- *  linux/arch/arm/lib/memzero.S
+ *  linux/arch/arm26/lib/memzero.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/putuser.S

 /*
- *  linux/arch/arm/lib/putuser.S
+ *  linux/arch/arm26/lib/putuser.S
  *
  *  Copyright (C) 2001 Russell King
  *
@@ -28,6 +28,7 @@
  */
 #include <asm/asm_offsets.h>
 #include <asm/thread_info.h>
+#include <asm/errno.h>
 
         .global __put_user_1
 __put_user_1:
@@ -95,7 +96,7 @@ __put_user_8:
         ldmfd   sp!, {pc}^
 
 __put_user_bad:
-	mov	r0, #-14
+	mov	r0, #-EFAULT
 	mov	pc, lr
 
 .section __ex_table, "a"

arch/arm26/lib/setbit.S

 /*
- *  linux/arch/arm/lib/setbit.S
+ *  linux/arch/arm26/lib/setbit.S
  *
  *  Copyright (C) 1995-1996 Russell King
  *

arch/arm26/lib/strchr.S

 /*
- *  linux/arch/arm/lib/strchr.S
+ *  linux/arch/arm26/lib/strchr.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/strrchr.S

 /*
- *  linux/arch/arm/lib/strrchr.S
+ *  linux/arch/arm26/lib/strrchr.S
  *
  *  Copyright (C) 1995-2000 Russell King
  *

arch/arm26/lib/testchangebit.S

 /*
- *  linux/arch/arm/lib/testchangebit.S
+ *  linux/arch/arm26/lib/testchangebit.S
  *
  *  Copyright (C) 1995-1996 Russell King
  *

arch/arm26/lib/testclearbit.S

 /*
- *  linux/arch/arm/lib/testclearbit.S
+ *  linux/arch/arm26/lib/testclearbit.S
  *
  *  Copyright (C) 1995-1996 Russell King
  *

arch/arm26/lib/testsetbit.S

 /*
- *  linux/arch/arm/lib/testsetbit.S
+ *  linux/arch/arm26/lib/testsetbit.S
  *
  *  Copyright (C) 1995-1996 Russell King
  *

arch/arm26/machine/Makefile

@@ -4,9 +4,5 @@
 
 # Object file lists.
 
-obj-y			:= dma.o irq.o oldlatches.o \
-			   small_page.o
+obj-y			:= dma.o irq.o latches.o
 
-extra-y 		:= head.o
-
-AFLAGS_head.o		:= -DTEXTADDR=$(TEXTADDR)

arch/arm26/machine/dma.c

 /*
- *  linux/arch/arm/kernel/dma-arc.c
+ *  linux/arch/arm26/kernel/dma.c
  *
  *  Copyright (C) 1998-1999 Dave Gilbert / Russell King
  *  Copyright (C) 2003 Ian Molton

arch/arm26/machine/irq.c

 /*
- *  linux/arch/arm/mach-arc/irq.c
+ *  linux/arch/arm26/mach-arc/irq.c
  *
  *  Copyright (C) 1996 Russell King
  *

arch/arm26/machine/oldlatches.c → arch/arm26/machine/latches.c

 /*
- *  linux/arch/arm/kernel/oldlatches.c
+ *  linux/arch/arm26/kernel/latches.c
  *
  *  Copyright (C) David Alan Gilbert 1995/1996,2000
  *  Copyright (C) Ian Molton 2003

arch/arm26/mm/Makefile

@@ -2,4 +2,5 @@
 # Makefile for the linux arm26-specific parts of the memory manager.
 #
 
-obj-y		:= init.o extable.o proc-funcs.o mm-memc.o fault.o
+obj-y		:= init.o extable.o proc-funcs.o memc.o fault.o \
+		   small_page.o

arch/arm26/mm/extable.c

 /*
- *  linux/arch/arm/mm/extable.c
+ *  linux/arch/arm26/mm/extable.c
  */
 
 #include <linux/config.h>
@@ -11,6 +11,12 @@ int fixup_exception(struct pt_regs *regs)
         const struct exception_table_entry *fixup;
 
         fixup = search_exception_tables(instruction_pointer(regs));
+
+	/*
+	 * The kernel runs in SVC mode - make sure we keep running in SVC mode
+	 * by frobbing the PSR appropriately (PSR and PC are in the same reg.
+	 * on ARM26)
+	 */
         if (fixup)
                 regs->ARM_pc = fixup->fixup | PSR_I_BIT | MODE_SVC26;
 

arch/arm26/mm/fault.c

 /*
- *  linux/arch/arm/mm/fault-common.c
+ *  linux/arch/arm26/mm/fault.c
  *
  *  Copyright (C) 1995  Linus Torvalds
  *  Modifications for ARM processor (c) 1995-2001 Russell King
@@ -212,7 +212,6 @@ int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	tsk = current;
 	mm  = tsk->mm;
 
-	printk("do_page_fault: pid: %d      %08x\n", tsk->pid, addr);
 	/*
 	 * If we're in an interrupt or have no user
 	 * context, we must not take the fault..

arch/arm26/mm/init.c

 /*
- *  linux/arch/arm/mm/init.c
+ *  linux/arch/arm26/mm/init.c
  *
  *  Copyright (C) 1995-2002 Russell King
  *
@@ -26,7 +26,6 @@
 
 #include <asm/segment.h>
 #include <asm/mach-types.h>
-#include <asm/pgalloc.h>
 #include <asm/dma.h>
 #include <asm/hardware.h>
 #include <asm/setup.h>
@@ -84,7 +83,7 @@ void show_mem(void)
 		else if (!page_count(page))
 			free++;
 		else
-			shared += atomic_read(&page->count) - 1;
+			shared += page_count(page) - 1;
 		page++;
 	} while (page < end);
 

arch/arm26/mm/mm-memc.c → arch/arm26/mm/memc.c

 /*
- *  linux/arch/arm/mm/mm-armo.c
+ *  linux/arch/arm26/mm/memc.c
  *
  *  Copyright (C) 1998-2000 Russell King
  *

arch/arm26/mm/proc-funcs.S

 /*
- *  linux/arch/arm/mm/proc-arm2,3.S
+ *  linux/arch/arm26/mm/proc-arm2,3.S
  *
  *  Copyright (C) 1997-1999 Russell King
  *

arch/arm26/machine/small_page.c → arch/arm26/mm/small_page.c

 /*
- *  linux/arch/arm/mm/small_page.c
+ *  linux/arch/arm26/mm/small_page.c
  *
  *  Copyright (C) 1996  Russell King
  *  Copyright (C) 2003  Ian Molton
@@ -12,6 +12,8 @@
  *   26/01/1996	RMK	Cleaned up various areas to make little more generic
  *   07/02/1999	RMK	Support added for 16K and 32K page sizes
  *			containing 8K blocks
+ *   23/05/2004 IM	Fixed to use struct page->lru (thanks wli)
+ *
  */
 #include <linux/signal.h>
 #include <linux/sched.h>
@@ -36,6 +38,7 @@
  *  granularity than the page size.  This is typically used for the
  *  second level page tables on 32-bit ARMs.
  *
+ * FIXME - this comment is *out of date*
  * Theory:
  *  We "misuse" the Linux memory management system.  We use alloc_page
  *  to allocate a page and then mark it as reserved.  The Linux memory
@@ -86,7 +89,7 @@ static unsigned long __get_small_page(int priority, struct order *order)
 		if (list_empty(&order->queue))
 			goto need_new_page;
 
-		page = list_entry(order->queue.next, struct page, list);
+		page = list_entry(order->queue.next, struct page, lru);
 again:
 #ifdef PEDANTIC
 		if (USED_MAP(page) & ~order->all_used)

arch/h8300/kernel/syscalls.S

@@ -289,6 +289,21 @@ SYMBOL_NAME_LABEL(sys_call_table)
 	.long SYMBOL_NAME(sys_utimes)
  	.long SYMBOL_NAME(sys_fadvise64_64)
 	.long SYMBOL_NAME(sys_ni_syscall)	/* sys_vserver */
+	.long SYMBOL_NAME(sys_mbind)
+	.long SYMBOL_NAME(sys_get_mempolicy)
+	.long SYMBOL_NAME(sys_set_mempolicy)
+	.long SYMBOL_NAME(sys_mq_open)
+	.long SYMBOL_NAME(sys_mq_unlink)
+	.long SYMBOL_NAME(sys_mq_timedsend)
+	.long SYMBOL_NAME(sys_mq_timedreceive)	/* 280 */
+	.long SYMBOL_NAME(sys_mq_notify)
+	.long SYMBOL_NAME(sys_mq_getsetattr)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* reserved for kexec */
+	.long SYMBOL_NAME(sys_waitid)
+	.long SYMBOL_NAME(sys_ni_syscall)	/* 285 */ /* available */
+	.long SYMBOL_NAME(sys_add_key)
+	.long SYMBOL_NAME(sys_request_key)
+	.long SYMBOL_NAME(sys_keyctl)
 
 	.rept NR_syscalls-(.-SYMBOL_NAME(sys_call_table))/4
 		.long SYMBOL_NAME(sys_ni_syscall)

arch/i386/boot/setup.S

@@ -162,7 +162,9 @@ ramdisk_max:	.long (-__PAGE_OFFSET-(512 << 20)-1) & 0x7fffffff
 					# the contents of an initrd
 
 trampoline:	call	start_of_setup
-		.space	1024
+		.align 16
+					# The offset at this point is 0x240
+		.space	(0x7ff-0x240+1) # E820 & EDD space (ending at 0x7ff)
 # End of setup header #####################################################
 
 start_of_setup:

arch/i386/kernel/acpi/boot.c

@@ -810,13 +810,16 @@ acpi_process_madt(void)
 }
 
 /*
- * acpi_boot_init()
+ * acpi_boot_table_init() and acpi_boot_init()
  *  called from setup_arch(), always.
  *	1. checksums all tables
  *	2. enumerates lapics
  *	3. enumerates io-apics
  *
- * side effects:
+ * acpi_table_init() is separate to allow reading SRAT without
+ * other side effects.
+ *
+ * side effects of acpi_boot_init:
  *	acpi_lapic = 1 if LAPIC found
  *	acpi_ioapic = 1 if IOAPIC found
  *	if (acpi_lapic && acpi_ioapic) smp_found_config = 1;
@@ -830,7 +833,7 @@ acpi_process_madt(void)
  */
 
 int __init
-acpi_boot_init (void)
+acpi_boot_table_init(void)
 {
 	int error;
 
@@ -872,6 +875,21 @@ acpi_boot_init (void)
 		}
 	}
 
+	return 0;
+}
+
+
+int __init acpi_boot_init(void)
+{
+	/*
+	 * If acpi_disabled, bail out
+	 * One exception: acpi=ht continues far enough to enumerate LAPICs
+	 */
+	if (acpi_disabled && !acpi_ht)
+		 return 1;
+
+	acpi_table_parse(ACPI_BOOT, acpi_parse_sbf);
+
 	/*
 	 * set sci_int and PM timer address
 	 */

arch/i386/kernel/cpu/common.c

@@ -334,21 +334,19 @@ void __init identify_cpu(struct cpuinfo_x86 *c)
 
 	generic_identify(c);
 
-	printk(KERN_DEBUG "CPU: After generic identify, caps: %08lx %08lx %08lx %08lx\n",
-		c->x86_capability[0],
-		c->x86_capability[1],
-		c->x86_capability[2],
-		c->x86_capability[3]);
+	printk(KERN_DEBUG "CPU: After generic identify, caps:");
+	for (i = 0; i < NCAPINTS; i++)
+		printk(" %08lx", c->x86_capability[i]);
+	printk("\n");
 
 	if (this_cpu->c_identify) {
 		this_cpu->c_identify(c);
 
-	printk(KERN_DEBUG "CPU: After vendor identify, caps:  %08lx %08lx %08lx %08lx\n",
-		c->x86_capability[0],
-		c->x86_capability[1],
-		c->x86_capability[2],
-		c->x86_capability[3]);
-}
+		printk(KERN_DEBUG "CPU: After vendor identify, caps:");
+		for (i = 0; i < NCAPINTS; i++)
+			printk(" %08lx", c->x86_capability[i]);
+		printk("\n");
+	}
 
 	/*
 	 * Vendor-specific initialization.  In this section we
@@ -398,11 +396,10 @@ void __init identify_cpu(struct cpuinfo_x86 *c)
 
 	/* Now the feature flags better reflect actual CPU features! */
 
-	printk(KERN_DEBUG "CPU: After all inits, caps:        %08lx %08lx %08lx %08lx\n",
-	       c->x86_capability[0],
-	       c->x86_capability[1],
-	       c->x86_capability[2],
-	       c->x86_capability[3]);
+	printk(KERN_DEBUG "CPU: After all inits, caps:");
+	for (i = 0; i < NCAPINTS; i++)
+		printk(" %08lx", c->x86_capability[i]);
+	printk("\n");
 
 	/*
 	 * On SMP, boot_cpu_data holds the common feature set between

arch/i386/kernel/head.S

@@ -128,9 +128,6 @@ ENTRY(startup_32_smp)
 	movl %eax,%fs
 	movl %eax,%gs
 
-	xorl %ebx,%ebx
-	incl %ebx				/* This is a secondary processor (AP) */
-
 /*
  *	New page tables may be in 4Mbyte page mode and may
  *	be using the global pages. 
@@ -148,7 +145,7 @@ ENTRY(startup_32_smp)
 #define cr4_bits mmu_cr4_features-__PAGE_OFFSET
 	movl cr4_bits,%edx
 	andl %edx,%edx
-	jz 3f
+	jz 6f
 	movl %cr4,%eax		# Turn on paging options (PSE,PAE,..)
 	orl %edx,%eax
 	movl %eax,%cr4
@@ -176,9 +173,10 @@ ENTRY(startup_32_smp)
 	wrmsr
 
 6:
-	/* cpuid clobbered ebx, set it up again: */
+	/* This is a secondary processor (AP) */
 	xorl %ebx,%ebx
 	incl %ebx
+
 3:
 #endif /* CONFIG_SMP */
 

arch/i386/kernel/setup.c

@@ -97,6 +97,9 @@ unsigned int mca_pentium_flag;
 /* For PCI or other memory-mapped resources */
 unsigned long pci_mem_start = 0x10000000;
 
+/* Boot loader ID as an integer, for the benefit of proc_dointvec */
+int bootloader_type;
+
 /* user-defined highmem size */
 static unsigned int highmem_pages = -1;
 
@@ -737,6 +740,10 @@ static void __init parse_cmdline_early (char ** cmdline_p)
 			}
 		}
 
+		else if (!memcmp(from, "noexec=", 7))
+			noexec_setup(from + 7);
+
+
 #ifdef  CONFIG_X86_SMP
 		/*
 		 * If the BIOS enumerates physical processors before logical,
@@ -1338,6 +1345,7 @@ void __init setup_arch(char **cmdline_p)
 		BIOS_revision = SYS_DESC_TABLE.table[2];
 	}
 	aux_device_present = AUX_DEVICE_INFO;
+	bootloader_type = LOADER_TYPE;
 
 #ifdef CONFIG_BLK_DEV_RAM
 	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
@@ -1413,6 +1421,7 @@ void __init setup_arch(char **cmdline_p)
 	/*
 	 * Parse the ACPI tables for possible boot-time SMP configuration.
 	 */
+	acpi_boot_table_init();
 	acpi_boot_init();
 
 #ifdef CONFIG_X86_LOCAL_APIC

arch/i386/kernel/trampoline.S

@@ -51,8 +51,14 @@ r_base = .
 	movl	$0xA5A5A5A5, trampoline_data - r_base
 				# write marker for master knows we're running
 
-	lidt	boot_idt - r_base	# load idt with 0, 0
-	lgdt	boot_gdt - r_base	# load gdt with whatever is appropriate
+	/* GDT tables in non default location kernel can be beyond 16MB and
+	 * lgdt will not be able to load the address as in real mode default
+	 * operand size is 16bit. Use lgdtl instead to force operand size
+	 * to 32 bit.
+	 */
+
+	lidtl	boot_idt - r_base	# load idt with 0, 0
+	lgdtl	boot_gdt - r_base	# load gdt with whatever is appropriate
 
 	xor	%ax, %ax
 	inc	%ax		# protected mode (PE) bit

arch/i386/mm/discontig.c

@@ -464,11 +464,6 @@ void __init set_highmem_pages_init(int bad_ppro)
 void __init set_max_mapnr_init(void)
 {
 #ifdef CONFIG_HIGHMEM
-	struct zone *high0 = &NODE_DATA(0)->node_zones[ZONE_HIGHMEM];
-	if (high0->spanned_pages > 0)
-	      	highmem_start_page = high0->zone_mem_map;
-	else
-		highmem_start_page = pfn_to_page(max_low_pfn - 1) + 1;
 	num_physpages = highend_pfn;
 #else
 	num_physpages = max_low_pfn;

arch/i386/mm/highmem.c

@@ -3,7 +3,7 @@
 void *kmap(struct page *page)
 {
 	might_sleep();
-	if (page < highmem_start_page)
+	if (!PageHighMem(page))
 		return page_address(page);
 	return kmap_high(page);
 }
@@ -12,7 +12,7 @@ void kunmap(struct page *page)
 {
 	if (in_interrupt())
 		BUG();
-	if (page < highmem_start_page)
+	if (!PageHighMem(page))
 		return;
 	kunmap_high(page);
 }
@@ -32,7 +32,7 @@ void *kmap_atomic(struct page *page, enum km_type type)
 
 	/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
 	inc_preempt_count();
-	if (page < highmem_start_page)
+	if (!PageHighMem(page))
 		return page_address(page);
 
 	idx = type + KM_TYPE_NR*smp_processor_id();

arch/i386/mm/init.c

@@ -130,7 +130,7 @@ static void __init page_table_range_init (unsigned long start, unsigned long end
 
 static inline int is_kernel_text(unsigned long addr)
 {
-	if (addr >= (unsigned long)_stext && addr <= (unsigned long)__init_end)
+	if (addr >= PAGE_OFFSET && addr <= (unsigned long)__init_end)
 		return 1;
 	return 0;
 }
@@ -430,7 +430,7 @@ u64 __supported_pte_mask = ~_PAGE_NX;
  * on      Enable
  * off     Disable
  */
-static int __init noexec_setup(char *str)
+void __init noexec_setup(const char *str)
 {
 	if (!strncmp(str, "on",2) && cpu_has_nx) {
 		__supported_pte_mask |= _PAGE_NX;
@@ -439,11 +439,8 @@ static int __init noexec_setup(char *str)
 		disable_nx = 1;
 		__supported_pte_mask &= ~_PAGE_NX;
 	}
-	return 1;
 }
 
-__setup("noexec=", noexec_setup);
-
 int nx_enabled = 0;
 #ifdef CONFIG_X86_PAE
 
@@ -555,7 +552,6 @@ void __init test_wp_bit(void)
 static void __init set_max_mapnr_init(void)
 {
 #ifdef CONFIG_HIGHMEM
-	highmem_start_page = pfn_to_page(highstart_pfn);
 	max_mapnr = num_physpages = highend_pfn;
 #else
 	max_mapnr = num_physpages = max_low_pfn;

arch/i386/mm/ioremap.c

@@ -135,7 +135,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
 	 */
-	if (phys_addr < virt_to_phys(high_memory)) {
+	if (phys_addr <= virt_to_phys(high_memory - 1)) {
 		char *t_addr, *t_end;
 		struct page *page;
 
@@ -202,7 +202,7 @@ void __iomem *ioremap_nocache (unsigned long phys_addr, unsigned long size)
 	/* Guaranteed to be > phys_addr, as per __ioremap() */
 	last_addr = phys_addr + size - 1;
 
-	if (last_addr < virt_to_phys(high_memory)) { 
+	if (last_addr < virt_to_phys(high_memory) - 1) {
 		struct page *ppage = virt_to_page(__va(phys_addr));		
 		unsigned long npages;
 
@@ -237,7 +237,7 @@ void iounmap(volatile void __iomem *addr)
 		return;
 	} 
 
-	if (p->flags && p->phys_addr < virt_to_phys(high_memory)) { 
+	if (p->flags && p->phys_addr < virt_to_phys(high_memory) - 1) {
 		change_page_attr(virt_to_page(__va(p->phys_addr)),
 				 p->size >> PAGE_SHIFT,
 				 PAGE_KERNEL); 				 

arch/i386/mm/pageattr.c

@@ -111,10 +111,7 @@ __change_page_attr(struct page *page, pgprot_t prot)
 	unsigned long address;
 	struct page *kpte_page;
 
-#ifdef CONFIG_HIGHMEM
-	if (page >= highmem_start_page) 
-		BUG(); 
-#endif
+	BUG_ON(PageHighMem(page));
 	address = (unsigned long)page_address(page);
 
 	kpte = lookup_address(address);

arch/m32r/Kconfig

@@ -20,9 +20,13 @@ config GENERIC_ISA_DMA
 	bool
 	default y
 
-#config GENERIC_HARDIRQS
-#	bool
-#	default y
+config GENERIC_HARDIRQS
+	bool
+	default y
+
+config GENERIC_IRQ_PROBE
+	bool
+	default y
 
 source "init/Kconfig"
 

arch/m32r/kernel/ptrace.c

@@ -2,7 +2,7 @@
  * linux/arch/m32r/kernel/ptrace.c
  *
  * Copyright (C) 2002  Hirokazu Takata, Takeo Takahashi
- * Copyright (C) 2004  Hirokazu Takata <takata at linux-m32r.org>
+ * Copyright (C) 2004  Hirokazu Takata, Kei Sakamoto
  *
  * Original x86 implementation:
  *	By Ross Biro 1/23/92
@@ -450,13 +450,13 @@ register_debug_trap(struct task_struct *child, unsigned long next_pc,
 	struct debug_trap *p = &child->thread.debug_trap;
 	unsigned long addr = next_pc & ~3;
 
-	if (p->nr_trap != 0) {
+	if (p->nr_trap == MAX_TRAPS) {
 		printk("kernel BUG at %s %d: p->nr_trap = %d\n",
 					__FILE__, __LINE__, p->nr_trap);
 		return -1;
 	}
-	p->addr = addr;
-	p->insn = next_insn;
+	p->addr[p->nr_trap] = addr;
+	p->insn[p->nr_trap] = next_insn;
 	p->nr_trap++;
 	if (next_pc & 3) {
 		*code = (next_insn & 0xffff0000) | 0x10f1;
@@ -473,35 +473,34 @@ register_debug_trap(struct task_struct *child, unsigned long next_pc,
 	return 0;
 }
 
-int withdraw_debug_trap_for_signal(struct task_struct *child)
-{
-	struct debug_trap *p = &child->thread.debug_trap;
-	int nr_trap = p->nr_trap;
-
-	if (nr_trap) {
-		access_process_vm(child, p->addr, &p->insn, sizeof(p->insn), 1);
-		p->nr_trap = 0;
-		p->addr = 0;
-		p->insn = 0;
-	}
-	return nr_trap;
-}
-
 static int
 unregister_debug_trap(struct task_struct *child, unsigned long addr,
 		      unsigned long *code)
 {
 	struct debug_trap *p = &child->thread.debug_trap;
+        int i;
 
-	if (p->nr_trap != 1 || p->addr != addr) {
+	/* Search debug trap entry. */
+	for (i = 0; i < p->nr_trap; i++) {
+		if (p->addr[i] == addr)
+			break;
+	}
+	if (i >= p->nr_trap) {
 		/* The trap may be requested from debugger.
 		 * ptrace should do nothing in this case.
 		 */
 		return 0;
 	}
-	*code = p->insn;
-	p->insn = 0;
-	p->addr = 0;
+
+	/* Recover orignal instruction code. */
+	*code = p->insn[i];
+
+	/* Shift debug trap entries. */
+	while (i < p->nr_trap - 1) {
+		p->insn[i] = p->insn[i + 1];
+		p->addr[i] = p->addr[i + 1];
+		i++;
+	}
 	p->nr_trap--;
 	return 1;
 }
@@ -510,13 +509,11 @@ static void
 unregister_all_debug_traps(struct task_struct *child)
 {
 	struct debug_trap *p = &child->thread.debug_trap;
+	int i;
 
-	if (p->nr_trap) {
-		access_process_vm(child, p->addr, &p->insn, sizeof(p->insn), 1);
-		p->addr = 0;
-		p->insn = 0;
+	for (i = 0; i < p->nr_trap; i++)
+		access_process_vm(child, p->addr[i], &p->insn[i], sizeof(p->insn[i]), 1);
 	p->nr_trap = 0;
-	}
 }
 
 static inline void
@@ -575,34 +572,6 @@ embed_debug_trap(struct task_struct *child, unsigned long next_pc)
 	return 0; /* success */
 }
 
-void
-embed_debug_trap_for_signal(struct task_struct *child)
-{
-	unsigned long next_pc;
-	unsigned long pc, insn;
-	int ret;
-
-	pc = get_stack_long(child, PT_BPC);
-	ret = access_process_vm(child, pc&~3, &insn, sizeof(insn), 0);
-	if (ret != sizeof(insn)) {
-		printk("kernel BUG at %s %d: access_process_vm returns %d\n",
-		       __FILE__, __LINE__, ret);
-		return;
-	}
-	compute_next_pc(insn, pc, &next_pc, child);
-	if (next_pc & 0x80000000) {
-		printk("kernel BUG at %s %d: next_pc = 0x%08x\n",
-		       __FILE__, __LINE__, (int)next_pc);
-		return;
-	}
-	if (embed_debug_trap(child, next_pc)) {
-		printk("kernel BUG at %s %d: embed_debug_trap error\n",
-		       __FILE__, __LINE__);
-		return;
-	}
-	invalidate_cache();
-}
-
 void
 withdraw_debug_trap(struct pt_regs *regs)
 {
@@ -621,9 +590,12 @@ static void
 init_debug_traps(struct task_struct *child)
 {
 	struct debug_trap *p = &child->thread.debug_trap;
+	int i;
 	p->nr_trap = 0;
-	p->addr = 0;
-	p->insn = 0;
+	for (i = 0; i < MAX_TRAPS; i++) {
+		p->addr[i] = 0;
+		p->insn[i] = 0;
+	}
 }
 
 
@@ -855,4 +827,3 @@ void do_syscall_trace(void)
 		current->exit_code = 0;
 	}
 }
-

arch/m32r/mm/fault.c

@@ -2,13 +2,12 @@
  *  linux/arch/m32r/mm/fault.c
  *
  *  Copyright (c) 2001, 2002  Hitoshi Yamamoto, and H. Kondo
+ *  Copyright (c) 2004  Naoto Sugai, NIIBE Yutaka
  *
  *  Some code taken from i386 version.
  *    Copyright (C) 1995  Linus Torvalds
  */
 
-/* $Id$ */
-
 #include <linux/config.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
@@ -96,6 +95,11 @@ void bust_spinlocks(int yes)
  *  bit 2 == 0 means kernel, 1 means user-mode
  *  bit 3 == 0 means data, 1 means instruction
  *======================================================================*/
+#define ACE_PROTECTION		1
+#define ACE_WRITE		2
+#define ACE_USERMODE		4
+#define ACE_INSTRUCTION		8
+
 asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
   unsigned long address)
 {
@@ -126,10 +130,10 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	 * nothing more.
 	 *
 	 * This verifies that the fault happens in kernel space
-	 * (error_code & 4) == 0, and that the fault was not a
-	 * protection error (error_code & 1) == 0.
+	 * (error_code & ACE_USERMODE) == 0, and that the fault was not a
+	 * protection error (error_code & ACE_PROTECTION) == 0.
 	 */
-	if (address >= TASK_SIZE && !(error_code & 4))
+	if (address >= TASK_SIZE && !(error_code & ACE_USERMODE))
 		goto vmalloc_fault;
 
 	mm = tsk->mm;
@@ -157,7 +161,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	 * thus avoiding the deadlock.
 	 */
 	if (!down_read_trylock(&mm->mmap_sem)) {
-		if ((error_code & 4) == 0 &&
+		if ((error_code & ACE_USERMODE) == 0 &&
 		    !search_exception_tables(regs->psw))
 			goto bad_area_nosemaphore;
 		down_read(&mm->mmap_sem);
@@ -171,7 +175,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	if (!(vma->vm_flags & VM_GROWSDOWN))
 		goto bad_area;
 #if 0
-	if (error_code & 4) {
+	if (error_code & ACE_USERMODE) {
 		/*
 		 * accessing the stack below "spu" is always a bug.
 		 * The "+ 4" is there due to the push instruction
@@ -191,27 +195,34 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 good_area:
 	info.si_code = SEGV_ACCERR;
 	write = 0;
-	switch (error_code & 3) {
+	switch (error_code & (ACE_WRITE|ACE_PROTECTION)) {
 		default:	/* 3: write, present */
 			/* fall through */
-		case 2:		/* write, not present */
+		case ACE_WRITE:	/* write, not present */
 			if (!(vma->vm_flags & VM_WRITE))
 				goto bad_area;
 			write++;
 			break;
-		case 1:		/* read, present */
+		case ACE_PROTECTION:	/* read, present */
 		case 0:		/* read, not present */
 			if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
 				goto bad_area;
 	}
 
+	/*
+	 * For instruction access exception, check if the area is executable
+	 */
+	if ((error_code & ACE_INSTRUCTION) && !(vma->vm_flags & VM_EXEC))
+	  goto bad_area;
+
 survive:
 	/*
 	 * If for any reason at all we couldn't handle the fault,
 	 * make sure we exit gracefully rather than endlessly redo
 	 * the fault.
 	 */
-	addr = (address & PAGE_MASK) | (error_code & 8);
+	addr = (address & PAGE_MASK);
+	set_thread_fault_code(error_code);
 	switch (handle_mm_fault(mm, vma, addr, write)) {
 		case VM_FAULT_MINOR:
 			tsk->min_flt++;
@@ -226,7 +237,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 		default:
 			BUG();
 	}
-
+	set_thread_fault_code(0);
 	up_read(&mm->mmap_sem);
 	return;
 
@@ -239,7 +250,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 
 bad_area_nosemaphore:
 	/* User mode accesses just cause a SIGSEGV */
-	if (error_code & 4) {
+	if (error_code & ACE_USERMODE) {
 		tsk->thread.address = address;
 		tsk->thread.error_code = error_code | (address >= TASK_SIZE);
 		tsk->thread.trap_no = 14;
@@ -295,7 +306,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 		goto survive;
 	}
 	printk("VM: killing process %s\n", tsk->comm);
-	if (error_code & 4)
+	if (error_code & ACE_USERMODE)
 		do_exit(SIGKILL);
 	goto no_context;
 
@@ -303,7 +314,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	up_read(&mm->mmap_sem);
 
 	/* Kernel mode? Handle exception or die */
-	if (!(error_code & 4))
+	if (!(error_code & ACE_USERMODE))
 		goto no_context;
 
 	tsk->thread.address = address;
@@ -352,7 +363,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 		if (!pte_present(*pte_k))
 			goto no_context;
 
-		addr = (address & PAGE_MASK) | (error_code & 8);
+		addr = (address & PAGE_MASK) | (error_code & ACE_INSTRUCTION);
 		update_mmu_cache(NULL, addr, *pte_k);
 		return;
 	}
@@ -370,7 +381,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long vaddr,
 	unsigned long *entry1, *entry2;
 	unsigned long pte_data, flags;
 	unsigned int *entry_dat;
-	int inst = vaddr & 8;
+	int inst = get_thread_fault_code() & ACE_INSTRUCTION;
 	int i;
 
 	/* Ptrace may call this routine. */

arch/mips/mm/highmem.c

@@ -8,7 +8,7 @@ void *__kmap(struct page *page)
 	void *addr;
 
 	might_sleep();
-	if (page < highmem_start_page)
+	if (!PageHighMem(page))
 		return page_address(page);
 	addr = kmap_high(page);
 	flush_tlb_one((unsigned long)addr);
@@ -20,7 +20,7 @@ void __kunmap(struct page *page)
 {
 	if (in_interrupt())
 		BUG();
-	if (page < highmem_start_page)
+	if (!PageHighMem(page))
 		return;
 	kunmap_high(page);
 }
@@ -41,7 +41,7 @@ void *__kmap_atomic(struct page *page, enum km_type type)
 
 	/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
 	inc_preempt_count();
-	if (page < highmem_start_page)
+	if (!PageHighMem(page))
 		return page_address(page);
 
 	idx = type + KM_TYPE_NR*smp_processor_id();

arch/mips/mm/init.c

@@ -204,7 +204,6 @@ void __init mem_init(void)
 	unsigned long tmp, ram;
 
 #ifdef CONFIG_HIGHMEM
-	highmem_start_page = mem_map + highstart_pfn;
 #ifdef CONFIG_DISCONTIGMEM
 #error "CONFIG_HIGHMEM and CONFIG_DISCONTIGMEM dont work together yet"
 #endif

arch/ppc/Kconfig

@@ -97,6 +97,11 @@ config PTE_64BIT
 	depends on 44x
 	default y
 
+config PHYS_64BIT
+	bool
+	depends on 44x
+	default y
+
 config ALTIVEC
 	bool "AltiVec Support"
 	depends on 6xx || POWER4
@@ -500,21 +505,41 @@ config APUS
 	  More information is available at:
 	  <http://linux-apus.sourceforge.net/>.
 
+config KATANA
+	bool "Artesyn-Katana"
+	help
+	  Select KATANA if configuring an Artesyn KATANA 750i or 3750
+	  cPCI board.
+
 config WILLOW
 	bool "Cogent-Willow"
 
+config CPCI690
+	bool "Force-CPCI690"
+	help
+	  Select CPCI690 if configuring a Force CPCI690 cPCI board.
+
 config PCORE
 	bool "Force-PowerCore"
 
 config POWERPMC250
 	bool "Force-PowerPMC250"
 
-config EV64260
-	bool "Galileo-EV-64260-BP"
+config CHESTNUT
+	bool "IBM 750FX Eval board or 750GX Eval board"
+	help
+	  Select CHESTNUT if configuring an IBM 750FX Eval Board or a
+	  IBM 750GX Eval board.
 
 config SPRUCE
 	bool "IBM-Spruce"
 
+config EV64260
+	bool "Marvell-EV64260BP"
+	help
+	  Select EV64260 if configuring a Marvell (formerly Galileo)
+	  EV64260BP Evaluation platform.
+
 config LOPEC
 	bool "Motorola-LoPEC"
 
@@ -679,7 +704,8 @@ config PPC_OF
 config PPC_GEN550
 	bool
 	depends on SANDPOINT || MCPN765 || SPRUCE || PPLUS || PCORE || \
-		PRPMC750 || K2 || PRPMC800 || LOPEC
+		PRPMC750 || K2 || PRPMC800 || LOPEC || \
+		(EV64260 && !SERIAL_MPSC) || CHESTNUT
 	default y
 
 config FORCE
@@ -689,9 +715,53 @@ config FORCE
 
 config GT64260
 	bool
-	depends on EV64260
+	depends on EV64260 || CPCI690
+	default y
+
+config MV64360
+	bool
+	depends on KATANA
 	default y
 
+config MV64360
+	bool
+	depends on CHESTNUT
+  	default y
+
+config MV64X60
+	bool
+	depends on (GT64260 || MV64360)
+	default y
+
+menu "Set bridge options"
+	depends on MV64X60
+
+config NOT_COHERENT_CACHE
+	bool "Turn off Cache Coherency"
+	default n
+	help
+	  Some 64x60 bridges lock up when trying to enforce cache coherency.
+	  When this option is selected, cache coherency will be turned off.
+	  Note that this can cause other problems (e.g., stale data being
+	  speculatively loaded via a cached mapping).  Use at your own risk.
+
+config MV64X60_BASE
+	hex "Set bridge base used by firmware"
+	default "0xf1000000"
+	help
+	  A firmware can leave the base address of the bridge's registers at
+	  a non-standard location.  If so, set this value to reflect the
+	  address of that non-standard location.
+
+config MV64X60_NEW_BASE
+	hex "Set bridge base used by kernel"
+	default "0xf1000000"
+	help
+	  If the current base address of the bridge's registers is not where
+	  you want it, set this value to the address that you want it moved to.
+
+endmenu
+
 config NONMONARCH_SUPPORT
 	bool "Enable Non-Monarch Support"
 	depends on PRPMC800

arch/ppc/Makefile

@@ -42,6 +42,9 @@ cpu-as-$(CONFIG_E500)		+= -Wa,-me500
 AFLAGS += $(cpu-as-y)
 CFLAGS += $(cpu-as-y)
 
+# Default to the common case.
+KBUILD_DEFCONFIG := common_defconfig
+
 head-y				:= arch/ppc/kernel/head.o
 head-$(CONFIG_8xx)		:= arch/ppc/kernel/head_8xx.o
 head-$(CONFIG_4xx)		:= arch/ppc/kernel/head_4xx.o
@@ -68,7 +71,7 @@ BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
 
 .PHONY: $(BOOT_TARGETS)
 
-all: zImage
+all: uImage zImage
 
 CPPFLAGS_vmlinux.lds	:= -Upowerpc
 

arch/ppc/boot/include/mpsc_defs.h

+/*
+ * drivers/serial/mpsc/mpsc_defs.h
+ *
+ * Register definitions for the Marvell Multi-Protocol Serial Controller (MPSC),
+ * Serial DMA Controller (SDMA), and Baud Rate Generator (BRG).
+ *
+ * Author: Mark A. Greer <mgreer@mvista.com>
+ *
+ * 2004 (c) MontaVista, Software, Inc.  This file is licensed under
+ * the terms of the GNU General Public License version 2.  This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#ifndef	_PPC_BOOT_MPSC_DEFS_H__
+#define	_PPC_BOOT_MPSC_DEFS_H__
+
+#define	MPSC_NUM_CTLRS		2
+
+/*
+ *****************************************************************************
+ *
+ *	Multi-Protocol Serial Controller Interface Registers
+ *
+ *****************************************************************************
+ */
+
+/* Main Configuratino Register Offsets */
+#define	MPSC_MMCRL			0x0000
+#define	MPSC_MMCRH			0x0004
+#define	MPSC_MPCR			0x0008
+#define	MPSC_CHR_1			0x000c
+#define	MPSC_CHR_2			0x0010
+#define	MPSC_CHR_3			0x0014
+#define	MPSC_CHR_4			0x0018
+#define	MPSC_CHR_5			0x001c
+#define	MPSC_CHR_6			0x0020
+#define	MPSC_CHR_7			0x0024
+#define	MPSC_CHR_8			0x0028
+#define	MPSC_CHR_9			0x002c
+#define	MPSC_CHR_10			0x0030
+#define	MPSC_CHR_11			0x0034
+
+#define	MPSC_MPCR_CL_5			0
+#define	MPSC_MPCR_CL_6			1
+#define	MPSC_MPCR_CL_7			2
+#define	MPSC_MPCR_CL_8			3
+#define	MPSC_MPCR_SBL_1			0
+#define	MPSC_MPCR_SBL_2			3
+
+#define	MPSC_CHR_2_TEV			(1<<1)
+#define	MPSC_CHR_2_TA			(1<<7)
+#define	MPSC_CHR_2_TTCS			(1<<9)
+#define	MPSC_CHR_2_REV			(1<<17)
+#define	MPSC_CHR_2_RA			(1<<23)
+#define	MPSC_CHR_2_CRD			(1<<25)
+#define	MPSC_CHR_2_EH			(1<<31)
+#define	MPSC_CHR_2_PAR_ODD		0
+#define	MPSC_CHR_2_PAR_SPACE		1
+#define	MPSC_CHR_2_PAR_EVEN		2
+#define	MPSC_CHR_2_PAR_MARK		3
+
+/* MPSC Signal Routing */
+#define	MPSC_MRR			0x0000
+#define	MPSC_RCRR			0x0004
+#define	MPSC_TCRR			0x0008
+
+/*
+ *****************************************************************************
+ *
+ *	Serial DMA Controller Interface Registers
+ *
+ *****************************************************************************
+ */
+
+#define	SDMA_SDC			0x0000
+#define	SDMA_SDCM			0x0008
+#define	SDMA_RX_DESC			0x0800
+#define	SDMA_RX_BUF_PTR			0x0808
+#define	SDMA_SCRDP			0x0810
+#define	SDMA_TX_DESC			0x0c00
+#define	SDMA_SCTDP			0x0c10
+#define	SDMA_SFTDP			0x0c14
+
+#define	SDMA_DESC_CMDSTAT_PE		(1<<0)
+#define	SDMA_DESC_CMDSTAT_CDL		(1<<1)
+#define	SDMA_DESC_CMDSTAT_FR		(1<<3)
+#define	SDMA_DESC_CMDSTAT_OR		(1<<6)
+#define	SDMA_DESC_CMDSTAT_BR		(1<<9)
+#define	SDMA_DESC_CMDSTAT_MI		(1<<10)
+#define	SDMA_DESC_CMDSTAT_A		(1<<11)
+#define	SDMA_DESC_CMDSTAT_AM		(1<<12)
+#define	SDMA_DESC_CMDSTAT_CT		(1<<13)
+#define	SDMA_DESC_CMDSTAT_C		(1<<14)
+#define	SDMA_DESC_CMDSTAT_ES		(1<<15)
+#define	SDMA_DESC_CMDSTAT_L		(1<<16)
+#define	SDMA_DESC_CMDSTAT_F		(1<<17)
+#define	SDMA_DESC_CMDSTAT_P		(1<<18)
+#define	SDMA_DESC_CMDSTAT_EI		(1<<23)
+#define	SDMA_DESC_CMDSTAT_O		(1<<31)
+
+#define SDMA_DESC_DFLT			(SDMA_DESC_CMDSTAT_O |	\
+					SDMA_DESC_CMDSTAT_EI)
+
+#define	SDMA_SDC_RFT			(1<<0)
+#define	SDMA_SDC_SFM			(1<<1)
+#define	SDMA_SDC_BLMR			(1<<6)
+#define	SDMA_SDC_BLMT			(1<<7)
+#define	SDMA_SDC_POVR			(1<<8)
+#define	SDMA_SDC_RIFB			(1<<9)
+
+#define	SDMA_SDCM_ERD			(1<<7)
+#define	SDMA_SDCM_AR			(1<<15)
+#define	SDMA_SDCM_STD			(1<<16)
+#define	SDMA_SDCM_TXD			(1<<23)
+#define	SDMA_SDCM_AT			(1<<31)
+
+#define	SDMA_0_CAUSE_RXBUF		(1<<0)
+#define	SDMA_0_CAUSE_RXERR		(1<<1)
+#define	SDMA_0_CAUSE_TXBUF		(1<<2)
+#define	SDMA_0_CAUSE_TXEND		(1<<3)
+#define	SDMA_1_CAUSE_RXBUF		(1<<8)
+#define	SDMA_1_CAUSE_RXERR		(1<<9)
+#define	SDMA_1_CAUSE_TXBUF		(1<<10)
+#define	SDMA_1_CAUSE_TXEND		(1<<11)
+
+#define	SDMA_CAUSE_RX_MASK	(SDMA_0_CAUSE_RXBUF | SDMA_0_CAUSE_RXERR | \
+	SDMA_1_CAUSE_RXBUF | SDMA_1_CAUSE_RXERR)
+#define	SDMA_CAUSE_TX_MASK	(SDMA_0_CAUSE_TXBUF | SDMA_0_CAUSE_TXEND | \
+	SDMA_1_CAUSE_TXBUF | SDMA_1_CAUSE_TXEND)
+
+/* SDMA Interrupt registers */
+#define	SDMA_INTR_CAUSE			0x0000
+#define	SDMA_INTR_MASK			0x0080
+
+/*
+ *****************************************************************************
+ *
+ *	Baud Rate Generator Interface Registers
+ *
+ *****************************************************************************
+ */
+
+#define	BRG_BCR				0x0000
+#define	BRG_BTR				0x0004
+
+#endif /*_PPC_BOOT_MPSC_DEFS_H__ */

arch/ppc/boot/simple/Makefile

@@ -47,6 +47,12 @@ clear_L2_L3	:= $(srctree)/$(boot)/simple/clear.S
 # See arch/ppc/kconfig and arch/ppc/platforms/Kconfig
 # for definition of what platform each config option refer to.
 #----------------------------------------------------------------------------
+      zimage-$(CONFIG_CPCI690)		:= zImage-STRIPELF
+zimageinitrd-$(CONFIG_CPCI690)		:= zImage.initrd-STRIPELF
+     extra.o-$(CONFIG_CPCI690)		:= misc-cpci690.o mv64x60_stub.o
+         end-$(CONFIG_CPCI690)		:= cpci690
+   cacheflag-$(CONFIG_CPCI690)		:= -include $(clear_L2_L3)
+
       zimage-$(CONFIG_IBM_OPENBIOS)	:= zImage-TREE
 zimageinitrd-$(CONFIG_IBM_OPENBIOS)	:= zImage.initrd-TREE
          end-$(CONFIG_IBM_OPENBIOS)	:= treeboot
@@ -66,10 +72,13 @@ zimageinitrd-$(CONFIG_OCOTEA)		:= zImage.initrd-TREE
   entrypoint-$(CONFIG_OCOTEA)		:= 0x01000000
      extra.o-$(CONFIG_OCOTEA)		:= pibs.o
 
-     extra.o-$(CONFIG_EV64260)		:= direct.o misc-ev64260.o
+     extra.o-$(CONFIG_EV64260)		:= misc-ev64260.o
          end-$(CONFIG_EV64260)		:= ev64260
    cacheflag-$(CONFIG_EV64260)		:= -include $(clear_L2_L3)
 
+     extra.o-$(CONFIG_CHESTNUT)		:= misc-chestnut.o
+         end-$(CONFIG_CHESTNUT)		:= chestnut
+
       zimage-$(CONFIG_GEMINI)		:= zImage-STRIPELF
 zimageinitrd-$(CONFIG_GEMINI)		:= zImage.initrd-STRIPELF
          end-$(CONFIG_GEMINI)		:= gemini
@@ -78,6 +87,10 @@ zimageinitrd-$(CONFIG_GEMINI)		:= zImage.initrd-STRIPELF
          end-$(CONFIG_K2)		:= k2
    cacheflag-$(CONFIG_K2)		:= -include $(clear_L2_L3)
 
+     extra.o-$(CONFIG_KATANA)		:= misc-katana.o mv64x60_stub.o
+         end-$(CONFIG_KATANA)		:= katana
+   cacheflag-$(CONFIG_KATANA)		:= -include $(clear_L2_L3)
+
 # kconfig 'feature', only one of these will ever be 'y' at a time.
 # The rest will be unset.
 motorola := $(CONFIG_MCPN765)$(CONFIG_MVME5100)$(CONFIG_PRPMC750) \
@@ -143,6 +156,7 @@ boot-$(CONFIG_8xx)		+= embed_config.o
 boot-$(CONFIG_8260)		+= embed_config.o
 boot-$(CONFIG_BSEIP)		+= iic.o
 boot-$(CONFIG_MBX)		+= iic.o pci.o qspan_pci.o
+boot-$(CONFIG_MV64X60)		+= misc-mv64x60.o
 boot-$(CONFIG_RPXCLASSIC)	+= iic.o pci.o qspan_pci.o
 boot-$(CONFIG_RPXLITE)		+= iic.o
 # Different boards need different serial implementations.
@@ -151,7 +165,7 @@ boot-$(CONFIG_8xx)		+= m8xx_tty.o
 boot-$(CONFIG_8260)		+= m8260_tty.o
 endif
 boot-$(CONFIG_SERIAL_MPC52xx_CONSOLE)	+= mpc52xx_tty.o
-boot-$(CONFIG_GT64260_CONSOLE)	+= gt64260_tty.o
+boot-$(CONFIG_SERIAL_MPSC_CONSOLE)	+= mv64x60_tty.o
 
 LIBS				:= $(common)/lib.a $(bootlib)/lib.a
 ifeq ($(CONFIG_PPC_PREP),y)

arch/ppc/boot/simple/gt64260_tty.c

-/*
- * arch/ppc/boot/simple/gt64260_tty.c
- *
- * Bootloader version of the embedded MPSC/UART driver for the GT64260[A].
- * Note: Due to 64260A errata, DMA will be used for UART input (via SDMA).
- *
- * Author: Mark A. Greer <mgreer@mvista.com>
- *
- * 2001 (c) MontaVista, Software, Inc.  This file is licensed under
- * the terms of the GNU General Public License version 2.  This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-/* This code assumes that the data cache has been disabled (L1, L2, L3). */
-
-#include <linux/config.h>
-#include <linux/serialP.h>
-#include <linux/serial_reg.h>
-#include <asm/serial.h>
-#include <asm/gt64260_defs.h>
-
-extern void udelay(long);
-static void stop_dma(int chan);
-
-static u32	gt64260_base = EV64260_BRIDGE_REG_BASE; /* base addr of 64260 */
-
-inline unsigned
-gt64260_in_le32(volatile unsigned *addr)
-{
-	unsigned ret;
-
-	__asm__ __volatile__("lwbrx %0,0,%1; eieio" : "=r" (ret) :
-				     "r" (addr), "m" (*addr));
-	return ret;
-}
-
-inline void
-gt64260_out_le32(volatile unsigned *addr, int val)
-{
-	__asm__ __volatile__("stwbrx %1,0,%2; eieio" : "=m" (*addr) :
-				     "r" (val), "r" (addr));
-}
-
-#define GT64260_REG_READ(offs)						\
-	(gt64260_in_le32((volatile uint *)(gt64260_base + (offs))))
-#define GT64260_REG_WRITE(offs, d)					\
-        (gt64260_out_le32((volatile uint *)(gt64260_base + (offs)), (int)(d)))
-
-
-static struct {
-	u32	sdc;
-	u32	sdcm;
-	u32	rx_desc;
-	u32	rx_buf_ptr;
-	u32	scrdp;
-	u32	tx_desc;
-	u32	sctdp;
-	u32	sftdp;
-} sdma_regs;
-
-#define	SDMA_REGS_INIT(chan) {						\
-	sdma_regs.sdc        = GT64260_SDMA_##chan##_SDC;		\
-	sdma_regs.sdcm       = GT64260_SDMA_##chan##_SDCM;		\
-	sdma_regs.rx_desc    = GT64260_SDMA_##chan##_RX_DESC;		\
-	sdma_regs.rx_buf_ptr = GT64260_SDMA_##chan##_RX_BUF_PTR;	\
-	sdma_regs.scrdp      = GT64260_SDMA_##chan##_SCRDP;		\
-	sdma_regs.tx_desc    = GT64260_SDMA_##chan##_TX_DESC;		\
-	sdma_regs.sctdp      = GT64260_SDMA_##chan##_SCTDP;		\
-	sdma_regs.sftdp      = GT64260_SDMA_##chan##_SFTDP;		\
-}
-
-typedef struct {
-	volatile u16 bufsize;
-	volatile u16 bytecnt;
-	volatile u32 cmd_stat;
-	volatile u32 next_desc_ptr;
-	volatile u32 buffer;
-} gt64260_rx_desc_t;
-
-typedef struct {
-	volatile u16 bytecnt;
-	volatile u16 shadow;
-	volatile u32 cmd_stat;
-	volatile u32 next_desc_ptr;
-	volatile u32 buffer;
-} gt64260_tx_desc_t;
-
-#define	MAX_RESET_WAIT	10000
-#define	MAX_TX_WAIT	10000
-
-#define	RX_NUM_DESC	2
-#define	TX_NUM_DESC	2
-
-#define	RX_BUF_SIZE	16
-#define	TX_BUF_SIZE	16
-
-static gt64260_rx_desc_t rd[RX_NUM_DESC] __attribute__ ((aligned(32)));
-static gt64260_tx_desc_t td[TX_NUM_DESC] __attribute__ ((aligned(32)));
-
-static char rx_buf[RX_NUM_DESC * RX_BUF_SIZE] __attribute__ ((aligned(32)));
-static char tx_buf[TX_NUM_DESC * TX_BUF_SIZE] __attribute__ ((aligned(32)));
-
-static int cur_rd = 0;
-static int cur_td = 0;
-
-
-#define	RX_INIT_RDP(rdp) {						\
-	(rdp)->bufsize = 2;						\
-	(rdp)->bytecnt = 0;						\
-	(rdp)->cmd_stat = GT64260_SDMA_DESC_CMDSTAT_L |			\
-			  GT64260_SDMA_DESC_CMDSTAT_F |			\
-			  GT64260_SDMA_DESC_CMDSTAT_O;			\
-}
-
-unsigned long
-serial_init(int chan, void *ignored)
-{
-	u32	mpsc_adjust, sdma_adjust, brg_bcr;
-	int	i;
-
-	stop_dma(0);
-	stop_dma(1);
-
-	if (chan != 1) {
-		chan = 0;  /* default to chan 0 if anything but 1 */
-		mpsc_adjust = 0;
-		sdma_adjust = 0;
-		brg_bcr = GT64260_BRG_0_BCR;
-		SDMA_REGS_INIT(0);
-	}
-	else {
-		mpsc_adjust = 0x1000;
-		sdma_adjust = 0x2000;
-		brg_bcr = GT64260_BRG_1_BCR;
-		SDMA_REGS_INIT(1);
-	}
-
-	/* Set up ring buffers */
-	for (i=0; i<RX_NUM_DESC; i++) {
-		RX_INIT_RDP(&rd[i]);
-		rd[i].buffer = (u32)&rx_buf[i * RX_BUF_SIZE];
-		rd[i].next_desc_ptr = (u32)&rd[i+1];
-	}
-	rd[RX_NUM_DESC - 1].next_desc_ptr = (u32)&rd[0];
-
-	for (i=0; i<TX_NUM_DESC; i++) {
-		td[i].bytecnt = 0;
-		td[i].shadow = 0;
-		td[i].buffer = (u32)&tx_buf[i * TX_BUF_SIZE];
-		td[i].cmd_stat = GT64260_SDMA_DESC_CMDSTAT_F |
-				 GT64260_SDMA_DESC_CMDSTAT_L;
-		td[i].next_desc_ptr = (u32)&td[i+1];
-	}
-	td[TX_NUM_DESC - 1].next_desc_ptr = (u32)&td[0];
-
-	/* Set MPSC Routing */
-        GT64260_REG_WRITE(GT64260_MPSC_MRR, 0x3ffffe38);
-        GT64260_REG_WRITE(GT64260_MPP_SERIAL_PORTS_MULTIPLEX, 0x00001102);
-
-	/* MPSC 0/1 Rx & Tx get clocks BRG0/1 */
-        GT64260_REG_WRITE(GT64260_MPSC_RCRR, 0x00000100);
-        GT64260_REG_WRITE(GT64260_MPSC_TCRR, 0x00000100);
-
-	/* clear pending interrupts */
-        GT64260_REG_WRITE(GT64260_SDMA_INTR_MASK, 0);
-
-	GT64260_REG_WRITE(GT64260_SDMA_0_SCRDP + sdma_adjust, &rd[0]);
-	GT64260_REG_WRITE(GT64260_SDMA_0_SCTDP + sdma_adjust,
-		&td[TX_NUM_DESC - 1]);
-	GT64260_REG_WRITE(GT64260_SDMA_0_SFTDP + sdma_adjust,
-		&td[TX_NUM_DESC - 1]);
-
-	GT64260_REG_WRITE(GT64260_SDMA_0_SDC + sdma_adjust,
-			  GT64260_SDMA_SDC_RFT | GT64260_SDMA_SDC_SFM |
-			  GT64260_SDMA_SDC_BLMR | GT64260_SDMA_SDC_BLMT |
-			  (3 << 12));
-
-	/* Set BRG to generate proper baud rate */
-	GT64260_REG_WRITE(brg_bcr, ((8 << 18) | (1 << 16) | 36));
-
-	/* Put MPSC into UART mode, no null modem, 16x clock mode */
-	GT64260_REG_WRITE(GT64260_MPSC_0_MMCRL + mpsc_adjust, 0x000004c4);
-	GT64260_REG_WRITE(GT64260_MPSC_0_MMCRH + mpsc_adjust, 0x04400400);
-
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_1 + mpsc_adjust, 0);
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_9 + mpsc_adjust, 0);
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_10 + mpsc_adjust, 0);
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_3 + mpsc_adjust, 4);
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_4 + mpsc_adjust, 0);
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_5 + mpsc_adjust, 0);
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_6 + mpsc_adjust, 0);
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_7 + mpsc_adjust, 0);
-        GT64260_REG_WRITE(GT64260_MPSC_0_CHR_8 + mpsc_adjust, 0);
-
-	/* 8 data bits, 1 stop bit */
-	GT64260_REG_WRITE(GT64260_MPSC_0_MPCR + mpsc_adjust, (3 << 12));
-
-	GT64260_REG_WRITE(GT64260_SDMA_0_SDCM + sdma_adjust,
-		GT64260_SDMA_SDCM_ERD);
-
-	GT64260_REG_WRITE(GT64260_MPSC_0_CHR_2 + sdma_adjust,
-		GT64260_MPSC_UART_CR_EH);
-
-	udelay(100);
-
-	return (ulong)chan;
-}
-
-static void
-stop_dma(int chan)
-{
-	u32	sdma_sdcm = GT64260_SDMA_0_SDCM;
-	int	i;
-
-	if (chan == 1) {
-		sdma_sdcm = GT64260_SDMA_1_SDCM;
-	}
-
-	/* Abort SDMA Rx, Tx */
-	GT64260_REG_WRITE(sdma_sdcm,
-		GT64260_SDMA_SDCM_AR | GT64260_SDMA_SDCM_STD);
-
-	for (i=0; i<MAX_RESET_WAIT; i++) {
-		if ((GT64260_REG_READ(sdma_sdcm) & (GT64260_SDMA_SDCM_AR |
-					GT64260_SDMA_SDCM_AT)) == 0) break;
-		udelay(100);
-	}
-
-	return;
-}
-
-static int
-wait_for_ownership(void)
-{
-	int	i;
-
-	for (i=0; i<MAX_TX_WAIT; i++) {
-		if ((GT64260_REG_READ(sdma_regs.sdcm) &
-					GT64260_SDMA_SDCM_TXD) == 0) break;
-		udelay(1000);
-	}
-
-	return (i < MAX_TX_WAIT);
-}
-
-void
-serial_putc(unsigned long com_port, unsigned char c)
-{
-	gt64260_tx_desc_t	*tdp;
-
-	if (wait_for_ownership() == 0) return;
-
-	tdp = &td[cur_td];
-	if (++cur_td >= TX_NUM_DESC) cur_td = 0;
-
-	*(unchar *)(tdp->buffer ^ 7) = c;
-	tdp->bytecnt = 1;
-	tdp->shadow = 1;
-	tdp->cmd_stat = GT64260_SDMA_DESC_CMDSTAT_L |
-		GT64260_SDMA_DESC_CMDSTAT_F | GT64260_SDMA_DESC_CMDSTAT_O;
-
-	GT64260_REG_WRITE(sdma_regs.sctdp, tdp);
-	GT64260_REG_WRITE(sdma_regs.sftdp, tdp);
-	GT64260_REG_WRITE(sdma_regs.sdcm,
-		GT64260_REG_READ(sdma_regs.sdcm) | GT64260_SDMA_SDCM_TXD);
-
-	return;
-}
-
-unsigned char
-serial_getc(unsigned long com_port)
-{
-	gt64260_rx_desc_t	*rdp;
-	unchar			c = '\0';
-
-	rdp = &rd[cur_rd];
-
-	if ((rdp->cmd_stat & (GT64260_SDMA_DESC_CMDSTAT_O |
-			      GT64260_SDMA_DESC_CMDSTAT_ES)) == 0) {
-		c = *(unchar *)(rdp->buffer ^ 7);
-		RX_INIT_RDP(rdp);
-		if (++cur_rd >= RX_NUM_DESC) cur_rd = 0;
-	}
-
-	return c;
-}
-
-int
-serial_tstc(unsigned long com_port)
-{
-	gt64260_rx_desc_t	*rdp;
-	int			loop_count = 0;
-	int			rc = 0;
-
-	rdp = &rd[cur_rd];
-
-	/* Go thru rcv desc's until empty looking for one with data (no error)*/
-	while (((rdp->cmd_stat & GT64260_SDMA_DESC_CMDSTAT_O) == 0) &&
-	       (loop_count++ < RX_NUM_DESC)) {
-
-		/* If there was an error, reinit the desc & continue */
-		if ((rdp->cmd_stat & GT64260_SDMA_DESC_CMDSTAT_ES) != 0) {
-			RX_INIT_RDP(rdp);
-			if (++cur_rd >= RX_NUM_DESC) cur_rd = 0;
-			rdp = (gt64260_rx_desc_t *)rdp->next_desc_ptr;
-		}
-		else {
-			rc = 1;
-			break;
-		}
-	}
-
-	return rc;
-}
-
-void
-serial_close(unsigned long com_port)
-{
-	stop_dma(com_port);
-	return;
-}

arch/ppc/boot/simple/head.S

@@ -135,9 +135,9 @@ haveOF:
 			 */
 #endif
 
-#ifdef	CONFIG_EV64260
-	/* Move 64260's base regs & CS window for external UART */
-	bl	ev64260_init
+#ifdef	CONFIG_MV64X60
+	/* mv64x60 specific hook to do things like moving register base, etc. */
+	bl	mv64x60_init
 #endif
 
 	/* Get the load address.

arch/ppc/boot/simple/misc-chestnut.S

+/*
+ * arch/ppc/boot/simple/misc-chestnut.S
+ *
+ * Setup for the IBM Chestnut (ibm-750fxgx_eval)
+ *
+ * Author: <source@mvista.com>
+ *
+ * <2004> (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+
+#include <asm/ppc_asm.h>
+#include <asm/mv64x60_defs.h>
+#include <platforms/chestnut.h>
+
+	.globl	mv64x60_board_init
+mv64x60_board_init:
+	/*
+	 * move UART to 0xffc00000
+	 */
+
+	li      r23,16
+
+	addis	r25,0,CONFIG_MV64X60_BASE@h
+	ori     r25,r25,MV64x60_CPU2DEV_2_BASE
+	addis   r26,0,CHESTNUT_UART_BASE@h
+	srw     r26,r26,r23
+	stwbrx  r26,0,(r25)
+	sync
+
+	addis	r25,0,CONFIG_MV64X60_BASE@h
+	ori     r25,r25,MV64x60_CPU2DEV_2_SIZE
+	addis   r26,0,0x00100000@h
+	srw     r26,r26,r23
+	stwbrx  r26,0,(r25)
+	sync
+
+	blr

arch/ppc/boot/simple/misc-cpci690.c

+/*
+ * arch/ppc/boot/simple/misc-cpci690.c
+ *
+ * Add birec data for Force CPCI690 board.
+ *
+ * Author: Mark A. Greer <source@mvista.com>
+ *
+ * 2003 (c) MontaVista Software, Inc.  This file is licensed under
+ * the terms of the GNU General Public License version 2.  This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/types.h>
+long	mv64x60_mpsc_clk_freq = 133000000;