Import 1.3.53

CREDITS

@@ -372,6 +372,14 @@ S: 25360 Georgia Tech Station
 S: Atlanta, Georgia 30332
 S: USA
 
+N: Kai Harrekilde-Petersen
+E: khp@pip.dknet.dk
+W: http://www.pip.dknet.dk/~pip93
+D: ftape-HOWTO, i82078 fdc detection code, various ftape related stuff.
+S: Studsgade 40, 2tv
+S: DK-8000 Aarhus C
+S: Denmark
+
 N: Andrew Haylett
 E: ajh@primag.co.uk
 D: Selection mechanism

Documentation/CodingStyle

+
+		Linux kernel coding style 
+
+This is a short document describing the preferred coding style for the
+linux kernel.  Coding style is very personal, and I won't _force_ my
+views on anybody, but this is what goes for anything that I have to be
+able to maintain, and I'd prefer it for most other things too.  Please
+at least consider the points made here. 
+
+First off, I'd suggest printing out a copy of the GNU coding standards,
+and NOT read it.  Burn them, it's a great symbolic gesture. 
+
+Anyway, here goes:
+
+
+	 	Chapter 1: Indentation
+
+Tabs are 8 characters, and thus indentations are also 8 characters. 
+There are heretic movements that try to make indentations 4 (or even 2!)
+characters deep, and that is akin to trying to define the value of PI to
+be 3. 
+
+Rationale: The whole idea behind indentation is to clearly define where
+a block of control starts and ends.  Especially when you've been looking
+at your screen for 20 straight hours, you'll find it a lot easier to see
+how the indentation works if you have large indentations. 
+
+Now, some people will claim that having 8-character indentations makes
+the code move too far to the right, and makes it hard to read on a
+80-character terminal screen.  The answer to that is that if you need
+more than 3 levels of indentation, you're screwed anyway, and should fix
+your program. 
+
+In short, 8-char indents make things easier to read, and have the added
+benefit of warning you when you're nesting your functions too deep. 
+Heed that warning. 
+
+
+		Chapter 2: Placing Braces
+
+The other issue that always comes up in C styling is the placement of
+braces.  Unlike the indent size, there are few technical reasons to
+choose one placement strategy over the other, but the preferred way, as
+shown to us by the prophets Kernighan and Ritchie, is to put the opening
+brace last on the line, and put the closing brace first, thusly:
+
+	if (x is true) {
+		we do y
+	}
+
+However, there is one special case, namely functions: they have the
+opening brace at the beginning of the next line, thus:
+
+	int function(int x)
+	{
+		body of function
+	}
+
+Heretic people all over the world have claimed that this inconsistency
+is ...  well ...  inconsistent, but all right-thinking people know that
+(a) K&R are _right_ and (b) K&R are right.  Besides, functions are
+special anyway (you can't nest them in C). 
+
+Note that the closing brace is empty on a line of its own, _except_ in
+the cases where it is followed by a continuation of the same statement,
+ie a "while" in a do-statement or an "else" in an if-statement, like
+this:
+
+	do {
+		body of do-loop
+	} while (condition);
+
+and
+
+	if (x == y) {
+		..
+	} else if (x > y) {
+		...
+	} else {
+		....
+	}
+			
+Rationale: K&R. 
+
+Also, note that this brace-placement also minimizes the number of empty
+(or almost empty) lines, without any loss of readability.  Thus, as the
+supply of new-lines on your screen is not a renewable resource (think
+25-line terminal screens here), you have more empty lines to put
+comments on. 
+
+
+		Chapter 3: Naming
+
+C is a Spartan language, and so should your naming be.  Unlike Modula-2
+and Pascal programmers, C programmers do not use cute names like
+ThisVariableIsATemporaryCounter.  A C programmer would call that
+variable "tmp", which is much easier to write, and not the least more
+difficult to understand. 
+
+HOWEVER, while mixed-case names are frowned upon, descriptive names for
+global variables are a must.  To call a global function "foo" is a
+shooting offense. 
+
+GLOBAL variables (to be used only if you _really_ need them) need to
+have descriptive names, as do global functions.  If you have a function
+that counts the number of active users, you should call that
+"count_active_users()" or similar, you should _not_ call it "cntusr()". 
+
+Encoding the type of a function into the name (so-called Hungarian
+notation) is brain damaged - the compiler knows the types anyway and can
+check those, and it only confuses the programmer.  No wonder MicroSoft
+makes buggy programs. 
+
+LOCAL variable names should be short, and to the point.  If you have
+some random integer loop counter, it should probably be called "i". 
+Calling it "loop_counter" is non-productive, if there is no chance of it
+being mis-understood.  Similarly, "tmp" can be just about any type of
+variable that is used to hold a temporary value. 
+
+If you are afraid to mix up your local variable names, you have another
+problem, which is called the function-growth-hormone-imbalance syndrome. 
+See next chapter. 
+
+		
+		Chapter 4: Functions
+
+Functions should be short and sweet, and do just one thing.  They should
+fit on one or two screenfuls of text (the ISO/ANSI screen size is 80x24,
+as we all know), and do one thing and do that well. 
+
+The maximum length of a function is inversely proportional to the
+complexity and indentation level of that function.  So, if you have a
+conceptually simple function that is just one long (but simple)
+case-statement, where you have to do lots of small things for a lot of
+different cases, it's ok to have a longer function. 
+
+However, if you have a complex function, and you suspect that a
+less-than-gifted first-year high-school student might not even
+understand what the function is all about, you should adhere to the
+maximum limits all the more closely.  Use helper functions with
+descriptive names (you can ask the compiler to in-line them if you think
+it's performance-critical, and it will probably do a better job of it
+that you would have done). 
+
+Another measure of the function is the number of local variables.  They
+shouldn't exceed 5-10, or you're doing something wrong.  Re-think the
+function, and split it into smaller pieces.  A human brain can
+generally easily keep track of about 7 different things, anything more
+and it gets confused.  You know you're brilliant, but maybe you'd like
+to understand what you did 2 weeks from now. 
+
+
+		Chapter 5: Commenting
+
+Comments are good, but there is also a danger of over-commenting.  NEVER
+try to explain HOW your code works in a comment: it's much better to
+write the code so that the _working_ is obvious, and it's a waste of
+time to explain badly written code. 
+
+Generally, you want your comments to tell WHAT your code does, not HOW. 
+Also, try to avoid putting comments inside a function body: if the
+function is so complex that you need to separately comment parts of it,
+you should probably go back to chapter 4 for a while.  You can make
+small comments to note or warn about something particularly clever (or
+ugly), but try to avoid excess.  Instead, put the comments at the head
+of the function, telling people what it does, and possibly WHY it does
+it. 
+
+
+		Chapter 6: You've made a mess of it
+
+That's ok, we all do.  You've probably been told by your long-time unix
+user helper that "GNU emacs" automatically formats the C sources for
+you, and you've noticed that yes, it does do that, but the defaults it
+uses are less than desirable (in fact, they are worse than random
+typing - a infinite number of monkeys typing into GNU emacs would never
+make a good program). 
+
+So, you can either get rid of GNU emacs, or change it to use saner
+values.  I did the first, so don't ask me how to do the latter.  But
+even if you fail in getting emacs to do sane formatting, not everything
+is lost: use "indent". 
+
+Now, again, GNU indent has the same brain dead settings that GNU emacs
+has, which is why you need to give it a few command line options. 
+However, that's not too bad, because even the makers of GNU indent
+recognize the authority of K&R (the GNU people aren't evil, they are
+just severely misguided in this matter), so you just give indent the
+options "-kr -i8" (stands for "K&R, 8 character indents"). 
+
+"indent" has a lot of options, and especially when it comes to comment
+re-formatting you may want to take a look at the manual page.  But
+remember: "indent" is not a fix for bad programming. 

Documentation/Configure.help

@@ -317,6 +317,14 @@ CONFIG_M486
   not sure, say N; This option will make the kernel use some
   instructions that are only available on 486+ machines.
 
+Use Pentium optimizations
+CONFIG_M586 
+  If you have a 586 or better, as opposed to a 486, or if you have a
+  486 and are very short on memory, say Y here.
+  Things will be slightly faster for a 586, and your kernel will be
+  smaller.  A kernel with this option enabled will still run on a 486,
+  although slightly slower.
+
 Enable loadable module support
 CONFIG_MODULES
   Kernel modules are small pieces of compiled code which can be 
@@ -568,11 +576,12 @@ CONFIG_SKB_LARGE
 The IPX protocol
 CONFIG_IPX
   This is support for the Novell networking protocol, IPX. You need it
-  if you want to access Novell Netware servers from within the Linux
-  DOS emulator dosemu (read the DOSEMU-HOWTO, available via ftp (user:
-  anonymous) in sunsite.unc.edu:/pub/Linux/docs/HOWTO). To
-  turn your Linux box into a fully featured Netware file server and
-  IPX router, say Y here and fetch lwared from
+  if you want to access Novell Netware servers by using ncpfs or from
+  within the Linux DOS emulator dosemu (read the DOSEMU-HOWTO,
+  available via ftp (user: anonymous) in
+  sunsite.unc.edu:/pub/Linux/docs/HOWTO). To turn your Linux box into
+  a fully featured Netware file server and IPX router, say Y here and
+  fetch lwared from
   sunsite.unc.edu:/pub/Linux/system/Networking/daemons/. General
   information about how to connect Linux, Windows machines and Macs is
   on the WWW at http://eats.com/linux_mac_win.html (to browse the WWW,
@@ -2003,7 +2012,7 @@ CONFIG_SYSV_FS
   Documentation/modules.txt. If you haven't heard about all of this
   before, it's safe to say N.
 
-SMB filesystem (to mount WfW shares etc..) support
+SMB filesystem support (to mount WfW shares etc..)
 CONFIG_SMB_FS
   SMB (Server Message Buffer) is the protocol Windows for Workgroups
   (WfW), Windows NT and Lan Manager use to talk to each other over an
@@ -2023,6 +2032,18 @@ CONFIG_SMB_FS
   running kernel whenever you want), say M here and read
   Documentation/modules.txt. Most people say N, however.
 
+NCP filesystem support (to mount NetWare volumes)
+CONFIG_NCP_FS
+  NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
+  used by NetWare clients to talk to file servers. Enabling this
+  allows you to mount NetWare file server volumes and access them just
+  like any other directory. To actually mount the filesystem, you need
+  a special mount program, available on sunsite.unc.edu via anonymous
+  ftp in /pub/Linux/system/Filesystem/ncpfs-xx.tgz. If you want to
+  compile this as a module ( = code which can be inserted in and
+  removed from the running kernel whenever you want), say M here and
+  read Documentation/modules.txt.
+
 Cyclades async mux support
 CONFIG_CYCLADES
   This is a card which gives you many serial ports. You would need

Makefile

 VERSION = 1
 PATCHLEVEL = 3
-SUBLEVEL = 52
+SUBLEVEL = 53
 
 ARCH = i386
 
@@ -266,6 +266,7 @@ modules_install:
 	if [ -f IPV4_MODULES  ]; then inst_mod IPV4_MODULES  ipv4;  fi; \
 	if [ -f SCSI_MODULES  ]; then inst_mod SCSI_MODULES  scsi;  fi; \
 	if [ -f FS_MODULES    ]; then inst_mod FS_MODULES    fs;    fi; \
+	if [ -f CDROM_MODULES ]; then inst_mod CDROM_MODULES cdrom; fi; \
 	\
 	ls *.o > .allmods; \
 	echo $$MODULES | tr ' ' '\n' | sort | comm -23 .allmods - > .misc; \

arch/alpha/defconfig

@@ -22,6 +22,7 @@ CONFIG_ALPHA_CABRIOLET=y
 # CONFIG_ALPHA_SRM is not set
 CONFIG_PCI=y
 CONFIG_ALPHA_APECS=y
+CONFIG_ALPHA_NEED_ROUNDING_EMULATION=y
 # CONFIG_SERIAL_ECHO is not set
 # CONFIG_TGA_CONSOLE is not set
 CONFIG_PCI_OPTIMIZE=y
@@ -33,6 +34,7 @@ CONFIG_SYSVIPC=y
 # block devices
 #
 CONFIG_BLK_DEV_FD=y
+# CONFIG_BLK_DEV_RAM is not set
 CONFIG_ST506=y
 
 #
@@ -142,6 +144,7 @@ CONFIG_DE4X5=y
 #
 # Filesystems
 #
+# CONFIG_QUOTA is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_EXT_FS is not set
 CONFIG_EXT2_FS=y
@@ -168,6 +171,7 @@ CONFIG_PSMOUSE=y
 # CONFIG_ATIXL_BUSMOUSE is not set
 # CONFIG_QIC02_TAPE is not set
 # CONFIG_APM is not set
+# CONFIG_WATCHDOG is not set
 
 #
 # Sound

arch/i386/Makefile

@@ -46,14 +46,16 @@ LINKFLAGS =-qmagic -Ttext 0xfffe0
 endif
 CFLAGS := $(CFLAGS) -pipe
 
+ifdef CONFIG_M386
+CFLAGS := $(CFLAGS) -m386
+endif
+
 ifdef CONFIG_M486
 CFLAGS := $(CFLAGS) -m486
-else
-ifdef CONFIG_M586
-CFLAGS := $(CFLAGS) -mpentium
-else
-CFLAGS := $(CFLAGS) -m386
 endif
+
+ifdef CONFIG_M586
+CFLAGS := $(CFLAGS) -m486 -malign-loops=2 -malign-jumps=2 -malign-functions=2
 endif
 
 ifdef SMP

arch/i386/config.in

@@ -27,10 +27,10 @@ tristate 'Kernel support for ELF binaries' CONFIG_BINFMT_ELF
 if [ "$CONFIG_BINFMT_ELF" = "y" ]; then
   bool 'Compile kernel as ELF - if your GCC is ELF-GCC' CONFIG_KERNEL_ELF
 fi
-#bool 'Use Pentium-specific optimizations (does NOT work on i386)' CONFIG_M586
-#if [ "$CONFIG_M586" = "n" ]; then
-bool 'Use 486-specific optimizations (does NOT work on i386)' CONFIG_M486
-#fi
+choice 'Processor type' \
+	"386		CONFIG_M386	\
+	 486		CONFIG_M486	\
+	 Pentium	CONFIG_M586" Pentium
 
 source drivers/block/Config.in
 

arch/i386/defconfig

@@ -19,7 +19,9 @@ CONFIG_PCI_OPTIMIZE=y
 CONFIG_SYSVIPC=y
 CONFIG_BINFMT_ELF=y
 CONFIG_KERNEL_ELF=y
-CONFIG_M486=y
+# CONFIG_M386 is not set
+# CONFIG_M486 is not set
+CONFIG_M586=y
 
 #
 # block devices
@@ -109,10 +111,10 @@ CONFIG_MSDOS_FS=y
 CONFIG_PROC_FS=y
 CONFIG_NFS_FS=y
 # CONFIG_ROOT_NFS is not set
+# CONFIG_SMB_FS is not set
 CONFIG_ISO9660_FS=y
 # CONFIG_HPFS_FS is not set
 # CONFIG_SYSV_FS is not set
-# CONFIG_SMB_FS is not set
 
 #
 # character devices

arch/ppc/Makefile

@@ -12,16 +12,16 @@
 #
 # Copyright (C) 1994 by Linus Torvalds
 # Changes for PPC by Gary Thomas
+# Modified by Cort Dougan
 #
-
 # PowerPC (cross) tools
-AS		= as.ppc
-ASFLAGS		=
-LD		= ld.ppc
+AS		= /usr/local/bin/as.ppc
+ASFLAGS		= 
+LD		= /u/cort/ppc-gcc/bin/ld.ppc
 #LINKFLAGS	= -T arch/ppc/ld.script -Ttext 0x90000000 -Map vmlinux.map
 LINKFLAGS	= -T arch/ppc/ld.script -Ttext 0x90000000 
 HOSTCC		= gcc
-CC		= gcc.ppc
+CC		= /usr/local/bin/gcc.ppc 
 CFLAGS		= -D__KERNEL__ -I$(TOPDIR)/include \
 		-Wstrict-prototypes \
 		-fomit-frame-pointer \
@@ -30,10 +30,10 @@ CFLAGS		= -D__KERNEL__ -I$(TOPDIR)/include \
 		-O2 -pipe
 #-Wall
 CPP		= $(CC) -E $(CFLAGS)
-AR		= ar.ppc
-RANLIB		= ranlib.ppc
-STRIP		= strip.ppc
-NM		= nm.ppc
+AR		= /u/cort/ppc-gcc/bin/ar.ppc
+RANLIB		= /u/cort/ppc-gcc/bin/ranlib.ppc
+STRIP		= /u/cort/ppc-gcc/bin/strip.ppc
+NM		= /u/cort/ppc-gcc/bin/nm.ppc
 
 #
 # Set these to indicate how to link it..
@@ -99,6 +99,8 @@ arch/ppc/mm: dummy
 
 archclean:
 #	@$(MAKEBOOT) clean
+	/bin/rm -f arch/ppc/kernel/*.o arch/ppc/kernel/mk_defs arch/ppc/kernel/ppc_defs.h mm/*.o
+	/bin/rm -f arch/ppc/kernel/*~ arch/ppc/kernel/*~      
 
 archdep:
 #	@$(MAKEBOOT) dep

arch/ppc/boot/Makefile

@@ -24,8 +24,11 @@ OBJECTS = head.o main.o
 
 all:	linux.boot
 
-linux.boot: $(TOPDIR)/vmlinux
-	mkboot $(TOPDIR)/vmlinux $@ 0
+linux.boot: $(TOPDIR)/vmlinux mkboot
+	mkboot $(TOPDIR)/vmlinux /u/cort/bootpd/vmlinux
+
+mkboot : cortstrip.c
+	$(HOSTCC) -o mkboot cortstrip.c
 
 clean:
 	rm -f linux.boot 

arch/ppc/boot/cortstrip.c

+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/* amount to skip */
+#define PLACE 65536
+
+/* size of read buffer */
+#define SIZE 0x200000
+
+/* crude program to strip the elf header to make a bootable
+   image via tftp
+ */
+
+
+int main(int argc, char **argv )
+{
+  int fd, fdo;
+  unsigned char data[SIZE];
+  int i, n, skip;
+
+  if ( argc != 3 )
+  {
+    fprintf(stderr,"%s infile outfile\n", argv[0]);
+    exit(-1);
+  }
+
+
+  fd = open(argv[1], O_RDONLY);
+  if ( fd == -1 )
+  {
+    fprintf(stderr,"Couldn't open %s\n", argv[1]);
+    perror("open()");
+    exit(-1);
+  }
+  
+  fdo = open(argv[2], O_WRONLY|O_CREAT);
+  if ( fdo == -1 )
+  {
+    fprintf(stderr,"Couldn't open %s\n", argv[2]);
+    perror("open()");
+    exit(-1);
+  }
+
+#if 0
+  skip = atoi(argv[3]);
+#else
+  skip = PLACE;
+#endif
+  i = lseek(fd, skip, SEEK_SET);
+  printf("lseek'd %d bytes\n", i);
+  if ( i == -1 )
+  {
+      perror("lseek()");
+  }
+
+  while ( (n = read(fd, data, SIZE)) > 0 )
+  {
+    printf("Read %d bytes\n", n);
+    i = write(fdo, data, n);
+    printf("Wrote %d bytes\n", i);    
+  }
+
+
+  close(fdo);
+  close(fd);
+  return(0);
+}
+
+

arch/ppc/kernel/Makefile

@@ -6,6 +6,10 @@
 # unless it's something special (ie not a .c file).
 #
 # Note 2! The CFLAGS definitions are now in the main makefile...
+#
+#
+# Modified by Cort Dougan
+#
 
 .c.s:
 	$(CC) $(CFLAGS) -S $<
@@ -26,7 +30,7 @@ HOST_CC = gcc
 OBJS  = misc.o setup.o port_io.o irq.o pci.o traps.o stubs.o process.o \
 	signal.o raw_printf.o ramdisk.o 
 
-all: head.o kernel.o cortstrip mkboot
+all: head.o kernel.o
 
 head.o: head.s
 head.s: head.S $(TOPDIR)/include/linux/tasks.h ppc_defs.h

arch/ppc/kernel/misc.S

@@ -560,7 +560,8 @@ sys_call_table:
 	.long sys_uselib
 	.long sys_swapon
 	.long sys_reboot
-	.long sys_readdir
+/*	.long sys_readdir*/
+	.long old_readdir
 	.long sys_mmap			/* 90 */
 	.long sys_munmap
 	.long sys_truncate
@@ -623,4 +624,4 @@ sys_call_table:
 	.globl	floppy_track_buffer
 floppy_track_buffer:
 	.space	512*2*38		/* Space for one entire cylinder! */	
-#endif
+#endif
\ No newline at end of file

arch/ppc/kernel/pci.c

@@ -90,7 +90,7 @@ pcibios_read_config_word (unsigned char bus,
 #endif	
 	if ((bus != 0) || (dev < 11) || (dev > 16))
 	{
-		*val = 0xFFFFFFFF;
+		*val =(unsigned short) 0xFFFFFFFF;
 		return PCIBIOS_DEVICE_NOT_FOUND;
 	} else
 	{
@@ -119,7 +119,7 @@ pcibios_read_config_byte (unsigned char bus,
 #endif		
 	if ((bus != 0) || (dev < 11) || (dev > 16))
 	{
-		*val = 0xFFFFFFFF;
+		*val = (unsigned char) 0xFFFFFFFF;
 		return PCIBIOS_DEVICE_NOT_FOUND;
 	} else
 	{
@@ -207,7 +207,7 @@ pcibios_find_device (unsigned short vendor, unsigned short device_id,
 		     unsigned short index, unsigned char *bus,
 		     unsigned char *dev)
 {
-	unsigned long w, desired = (device_id << 16) | vendor;
+	unsigned int w, desired = (device_id << 16) | vendor;
 	int devnr;
 
 	if (vendor == 0xffff) {

arch/ppc/kernel/ppc_asm.tmpl

@@ -165,4 +165,7 @@ n:
 /* Missing instructions */
 #define bdne	bc 0,2,
 
-#include "ppc_machine.h"
+#include <asm/ppc_machine.h>
+
+
+

arch/ppc/kernel/process.c

-/* * Last edited: Nov  8 12:32 1995 (cort) */
+/* * Last edited: Dec 14 17:32 1995 (cort) */
 /*
  *  linux/arch/ppc/kernel/process.c
  *
  *  Copyright (C) 1995  Linus Torvalds
  *  Adapted for PowerPC by Gary Thomas
+ *  Modified by Cort Dougan
  */
 
 /*
@@ -27,7 +28,7 @@
 #include <asm/system.h>
 #include <asm/io.h>
 
-#include <asm/processor.h>
+#include <asm/ppc_machine.h>
 
 int dump_fpu (struct user_i387_struct* fpu)
 {
@@ -122,10 +123,10 @@ void copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	childregs = ((struct pt_regs *) (p->kernel_stack_page + 2*PAGE_SIZE)) - 2;
 	*childregs = *regs;	/* STRUCT COPY */
 	childregs->gpr[3] = 0;  /* Result from fork() */
-	p->tss.ksp = childregs;
+	p->tss.ksp = (unsigned long)childregs;
 	if (usp >= (unsigned long)regs)
 	{ /* Stack is in kernel space - must adjust */
-		childregs->gpr[1] = childregs+1;
+		childregs->gpr[1] = (long)(childregs+1);
 	} else
 	{ /* Provided stack is in user space */
 		childregs->gpr[1] = usp;
@@ -166,8 +167,18 @@ asmlinkage int sys_newselect(int p1, int p2, int p3, int p4, int p5, int p6, str
 
 asmlinkage int sys_fork(int p1, int p2, int p3, int p4, int p5, int p6, struct pt_regs *regs)
 {
-printk("process.c: sys_fork() called\n");
-	return do_fork( CLONE_VM|SIGCHLD, regs->gpr[1], regs);
+  int i;
+  char *a;
+#if 0
+  for ( i = 0 ; i <= 0x400 ; i++)
+  {
+    printk("going to do kmalloc(%d)\n",i);
+    a = kmalloc(i,GFP_KERNEL);
+    a = kmalloc(i,GFP_KERNEL);
+    printk("a = %x\n",a);
+  }
+#endif
+  return do_fork( SIGCHLD, regs->gpr[1], regs);
 }
 
 asmlinkage int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
@@ -176,7 +187,6 @@ asmlinkage int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 {
 	int error;
 	char * filename;
-/*	printk("process.c: sys_execve(a0 = %s, a1 = %x, a2 = %x)\n",a0,a1,a2);*/
 
 #if 1
 	/* paranoia check.  I really don't trust head.S  -- Cort */
@@ -189,12 +199,7 @@ asmlinkage int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 	if (error)
 	  return error;
 	error = do_execve(filename, (char **) a1, (char **) a2, regs);
-#if 0
-	if (error)
-	{
-	  printk("EXECVE - file = '%s', error = %d\n", filename, error);
-	}
-#endif
+
 	putname(filename);
 	return error;
 }
@@ -210,9 +215,9 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long usp, unsigned
     usp = regs->gpr[1];
   
 
-  i = do_fork(CLONE_VM/*clone_flags*/, /*usp*/regs->gpr[1], regs);
-/*  printk("sys_clone going to return %d\n", i);*/
-  return i;
+  /* I hard coded in all the arguments to clone since clone() is inlined
+     and has trouble with its args  with our gcc -- Cort*/
+  return do_fork(/*clone_flags*/CLONE_VM, /*usp*/ regs->gpr[1], regs);
 }
 
 
@@ -226,7 +231,7 @@ print_backtrace(void)
 	while (*sp)
 	{
 		printk("%08X ", sp[2]);
-		sp = *sp;
+		sp = (unsigned long *)*sp;
 		if (++cnt == 8)
 		{
 			printk("\n");

arch/ppc/kernel/raw_printf.c

@@ -3,9 +3,65 @@
 #include <stdarg.h>
 
 extern void cnputc(char c);
-
+char cngetc(void);
+int cntstc(void);
+void _cnpause(void);
+void cnpause(void);
+void video_on(void);
+int CRT_init(void);
+int kbd(int noblock);
+int scankbd(void);
 static char *_sprintk_ptr;
+void kbdreset(void);
+int CRT_test(void);
+int CRT_putc(int , unsigned char );
+/*int CRT_putc(int port, u_char c)*/
+int CRT_getc(void);
+int _vprintk(   int (*putc)(), const char *fmt0, va_list ap);
+static _cvt(unsigned long val, char *buf, long radix, char *digits);
+static void cursor(void);
+static void initscreen(void );
+
+/*
+ * COM1 NS16550 support
+ */
+
+struct NS16550
+	{
+		unsigned char rbr;  /* 0 */
+		unsigned char ier;  /* 1 */
+		unsigned char fcr;  /* 2 */
+		unsigned char lcr;  /* 3 */
+		unsigned char mcr;  /* 4 */
+		unsigned char lsr;  /* 5 */
+		unsigned char msr;  /* 6 */
+		unsigned char scr;  /* 7 */
+	};
 
+#define thr rbr
+#define iir fcr
+#define dll rbr
+#define dlm ier
+
+#define LSR_DR   0x01  /* Data ready */
+#define LSR_OE   0x02  /* Overrun */
+#define LSR_PE   0x04  /* Parity error */
+#define LSR_FE   0x08  /* Framing error */
+#define LSR_BI   0x10  /* Break */
+#define LSR_THRE 0x20  /* Xmit holding register empty */
+#define LSR_TEMT 0x40  /* Xmitter empty */
+#define LSR_ERR  0x80  /* Error */
+
+#define COM1	0x800003F8
+#define COM2	0x800002F8
+
+typedef struct NS16550 *NS16550_t;
+
+const NS16550_t COM_PORTS[] = { COM1,COM2};
+
+volatile struct NS16550 *NS16550_init(int chan);
+void NS16550_putc(volatile struct NS16550 *com_port, unsigned char c);
+unsigned char NS16550_getc(volatile struct NS16550 *com_port);
 static _sputc(char c)
 {
    *_sprintk_ptr++ = c;
@@ -46,11 +102,7 @@ _printk(char const *fmt, ...)
 
 #define is_digit(c) ((c >= '0') && (c <= '9'))
 
-int
-_vprintk(putc, fmt0, ap)
-   int (*putc)();
-   const char *fmt0;
-   va_list ap;
+int _vprintk(   int (*putc)(), const char *fmt0, va_list ap)
 {
    char c, sign, *cp;
    int left_prec, right_prec, zero_fill, length, pad, pad_on_right;
@@ -210,7 +262,6 @@ static _cvt(unsigned long val, char *buf, long radix, char *digits)
 /*
  * Console I/O interface
  */
-
 typedef const (*proc)();
 typedef int dev_t;
 
@@ -225,24 +276,24 @@ static int port = 0;
 static int line_num = 0;
 #define MAX_LINES 24
 
-char
-cngetc()
+char cngetc(void)
 {
    int s = _disable_interrupts();
    char c = '\0';
    if (port == CRT_PORT)
    {
-      c = CRT_getc(port);
+/*      c = CRT_getc(port);*/
+     c = CRT_getc();
    } else
    if (port)
    {
-      c = NS16550_getc(port);
+      c = NS16550_getc((struct NS16550 *)port);
    }
    _enable_interrupts(s);
    return (c);
 }
 
-cntstc()
+int cntstc(void)
 {
    return (0);
 }
@@ -268,7 +319,7 @@ cnputc(char c)
          port = CRT_PORT;
       } else
       {
-         port = NS16550_init(0);
+         port =(int) NS16550_init(0);
       }
       init = TRUE;
    }
@@ -278,7 +329,7 @@ cnputc(char c)
    } else
    if (port)
    {
-      NS16550_putc(port, c);
+      NS16550_putc((struct NS16550 *)port, c);
    }
    if (c == '\n')
    {
@@ -294,7 +345,7 @@ cnputc(char c)
    }
 }
 
-_cnpause()
+void _cnpause(void)
 {
    int c;
    int s = _disable_interrupts();
@@ -323,7 +374,7 @@ _cnpause()
    _enable_interrupts(s);
 }
 
-cnpause()
+void cnpause(void)
 {
    int c;
    int s = _disable_interrupts();
@@ -333,45 +384,7 @@ cnpause()
    _enable_interrupts(s);
 }
 
-/*
- * COM1 NS16550 support
- */
-
-struct NS16550
-	{
-		unsigned char rbr;  /* 0 */
-		unsigned char ier;  /* 1 */
-		unsigned char fcr;  /* 2 */
-		unsigned char lcr;  /* 3 */
-		unsigned char mcr;  /* 4 */
-		unsigned char lsr;  /* 5 */
-		unsigned char msr;  /* 6 */
-		unsigned char scr;  /* 7 */
-	};
-
-#define thr rbr
-#define iir fcr
-#define dll rbr
-#define dlm ier
-
-#define LSR_DR   0x01  /* Data ready */
-#define LSR_OE   0x02  /* Overrun */
-#define LSR_PE   0x04  /* Parity error */
-#define LSR_FE   0x08  /* Framing error */
-#define LSR_BI   0x10  /* Break */
-#define LSR_THRE 0x20  /* Xmit holding register empty */
-#define LSR_TEMT 0x40  /* Xmitter empty */
-#define LSR_ERR  0x80  /* Error */
-
-#define COM1	0x800003F8
-#define COM2	0x800002F8
-
-typedef struct NS16550 *NS16550_t;
-
-const NS16550_t COM_PORTS[] = { COM1, COM2};
-
-volatile struct NS16550 *
-NS16550_init(int chan)
+volatile struct NS16550 *NS16550_init(int chan)
 {
 	volatile struct NS16550 *com_port;
 	volatile unsigned char xx;
@@ -393,13 +406,14 @@ NS16550_init(int chan)
 }
 
 
-NS16550_putc(volatile struct NS16550 *com_port, unsigned char c)
+void NS16550_putc(volatile struct NS16550 *com_port, unsigned char c)
 {
 	volatile int i;
 	while ((com_port->lsr & LSR_THRE) == 0) ;
 	com_port->thr = c;
 }
 
+
 unsigned char NS16550_getc(volatile struct NS16550 *com_port)
 {
 	while ((com_port->lsr & LSR_DR) == 0) ;
@@ -481,8 +495,7 @@ unsigned short	pccolor_so;		/* color/attributes, standout mode */
 /*
  * cursor() sets an offset (0-1999) into the 80x25 text area   
  */
-static void
-cursor()
+static void cursor(void)
 {
  	int pos = screen.cp - Crtat;
 
@@ -495,8 +508,7 @@ cursor()
 	}
 }
 
-static void
-initscreen()
+static void initscreen(void )
 {
 	struct screen *d = &screen;
 
@@ -533,8 +545,7 @@ fillw(unsigned short val, unsigned short *buf, int num)
  * "ca" is the color/attributes value (left-shifted by 8)
  * or 0 if the current regular color for that screen is to be used.
  */
-void 
-CRT_putc(int port, u_char c)
+int CRT_putc(int port, unsigned char c)
 {
 	struct screen *d = &screen;
 	u_short *base;
@@ -779,13 +790,13 @@ CRT_putc(int port, u_char c)
 	cursor();
 }
 
-video_on()
+void video_on(void)
 { /* Enable video */
 	outb(0x3C4, 0x01);
 	outb(0x3C5, inb(0x3C5)&~20);
 }
 
-CRT_init()
+int CRT_init(void)
 {
 	unsigned long *PCI_base = (unsigned long *)0x80808010;  /* Magic */
 	struct screen *d = &screen;
@@ -964,9 +975,7 @@ const unsigned char keycode[] = {
 	_x__, 0x4E, 0x51, 0x4A, _x__, 0x49, 0x46, 0x54, /* 0x78-0x7F */
 };
 
-int
-kbd(noblock)
-	int noblock;
+int kbd(int noblock)
 {
 	unsigned char dt, brk, act;
 	int first = 1;	
@@ -1041,11 +1050,12 @@ kbd(noblock)
 	goto loop;
 }
 
-scankbd() {
+int scankbd(void)
+{
 	return (kbd(1) != -1);
 }
 
-kbdreset()
+void kbdreset(void)
 {
 	unsigned char c;
 
@@ -1066,14 +1076,14 @@ kbdreset()
 		;
 }
 
-CRT_getc()
+int CRT_getc(void)
 {
 	int c;
 	while ((c = kbd(0)) == 0) ;
 	return(c);
 }
 
-CRT_test()
+int CRT_test(void)
 {
 	return ((inb(KBSTATP) & KBINRDY) != 0);
 }

arch/ppc/kernel/setup.c

@@ -134,9 +134,6 @@ int size_memory;
 
 #define DEFAULT_ROOT_DEVICE 0x0200	/* fd0 */
 
-#define COMMAND_LINE_SIZE 512	/* Should match head.S */
-char saved_command_line[COMMAND_LINE_SIZE];
-
 void setup_arch(char **cmdline_p,
 	unsigned long * memory_start_p, unsigned long * memory_end_p)
 {
@@ -146,7 +143,6 @@ void setup_arch(char **cmdline_p,
 
 	ROOT_DEV = DEFAULT_ROOT_DEVICE;
 	aux_device_present = 0xaa;
-	strcpy(saved_command_line, cmd_line);
 	*cmdline_p = cmd_line;
 	*memory_start_p = (unsigned long) &_end;
 	*memory_end_p = (unsigned long *)Hash;

arch/ppc/kernel/stubs.c

 #include <linux/in.h>
 
+unsigned int csum_tcpudp_magic(void);
+void halt(void);
+void _do_bottom_half(void);
+
 void sys_ptrace(void) { _panic("sys_ptrace"); }
 void sys_iopl(void) { _panic("sys_iopl"); }
 void sys_vm86(void) { _panic("sys_vm86"); }
@@ -9,10 +13,11 @@ void sys_quotactl(void) { _panic("sys_quotactl"); }
 void sys_pipe(void) {_panic("sys_pipe"); }
 void sys_ipc(void) {_panic("sys_ipc"); }
 void sys_mmap(void) {_panic("sys_mmap"); }
-void sys_readdir(void) {_panic("sys_readdir"); }
-
+/* unneeded 
+void sys_readdir(void) {panic("sys_readdir"); }
+*/
 
-halt()
+void halt(void)
 {
 	_printk("\n...Halt!\n");
 	abort();
@@ -91,7 +96,8 @@ tcp_check(unsigned char *buf, int len, int saddr, int daddr)
 	return (_val);
 }
 #endif
-_do_bottom_half()
+
+void _do_bottom_half(void)
 {
 	_enable_interrupts(1);
 	do_bottom_half();

arch/ppc/kernel/traps.c

@@ -26,7 +26,7 @@
 #include <asm/system.h>
 #include <asm/io.h>
 
-#include <asm/processor.h>
+#include <asm/ppc_machine.h>
 
 /*
  * Trap & Exception support
@@ -68,7 +68,8 @@ MachineCheckException(struct pt_regs *regs)
 ProgramCheckException(struct pt_regs *regs)
 {
 	printk("Program check at PC: %x[%x], SR: %x\n", regs->nip, va_to_phys(regs->nip), regs->msr);
-	_exception(SIGILL, regs);	
+	while(1) ;
+	_exception(SIGILL, regs);
 }
 
 FloatingPointCheckException(struct pt_regs *regs)

arch/ppc/mm/Makefile

@@ -24,6 +24,9 @@ modules:
 dep:
 	$(CPP) -M *.c > .depend
 
+fastdep:
+	$(CPP) -M *.c > .depend
+
 #
 # include a dependency file if one exists
 #

arch/ppc/mm/fault.c

+/* * Last edited: Nov 29 18:14 1995 (cort) */
 /*
  *  ARCH/ppc/mm/fault.c
  *
@@ -5,6 +6,9 @@
  *  Ported to PPC by Gary Thomas
  */
 
+/*#define NOISY_DATAFAULT*/
+/*#define NOISY_INSTRFAULT*/
+
 #include <linux/config.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
@@ -37,19 +41,24 @@ DataAccessException(struct pt_regs *regs)
   if (user_mode(regs)) mode |= 0x04;
   if (regs->dsisr & 0x02000000) mode |= 0x02;  /* Load/store */
   if (regs->dsisr & 0x08000000) mode |= 0x01;  /* Protection violation */
-#if 0
-  /*#ifdef SHOW_FAULTS*/
-  printk("Data Access Fault - Loc: %x, DSISR: %x, PC: %x", regs->dar, regs->dsisr, regs->nip);
-  printk(" PR: %d\n", regs->msr &&(1<<14));
+#ifdef NOISY_DATAFAULT
+  printk("Data fault on %x\n",regs->dar);
 #endif
   if (mode & 0x01)
   {
 #if 0
     printk("Write Protect Fault - Loc: %x, DSISR: %x, PC: %x\n", regs->dar, regs->dsisr, regs->nip);
+#endif
+#ifdef NOISY_DATAFAULT
+    printk("Write Protect fault\n ");
 #endif
     do_page_fault(regs, regs->dar, mode);
+#ifdef NOISY_DATAFAULT    
+    printk("Write Protect fault handled\n");
+#endif
     return;
   }
+/*   printk("trying\n"); */
   for (tries = 0;  tries < 1;  tries++)
   {
     dir = pgd_offset(current->mm, regs->dar & PAGE_MASK);
@@ -72,7 +81,15 @@ DataAccessException(struct pt_regs *regs)
     {
       printk("No PGD\n");
     }
+#ifdef NOISY_DATAFAULT    
+    printk("fall through page fault addr=%x; ip=%x\n",
+	   regs->dar,regs->nip);
+    printk("beforefault: pgd[0] = %x[%x]\n",current->mm->pgd,*(current->mm->pgd));
+#endif
     do_page_fault(regs, regs->dar, mode);
+#ifdef NOISY_DATAFAULT    
+    printk("handled: pgd[0] = %x[%x]\n",current->mm->pgd,*(current->mm->pgd));
+#endif
   }
 }
 
@@ -83,43 +100,72 @@ InstructionAccessException(struct pt_regs *regs)
   pmd_t *pmd;
   pte_t *pte;
   int tries, mode = 0;
-#if 0
-  panic("Instruction Access Fault - Loc: %x, DSISR: %x, PC: %x\n", regs->dar, regs->dsisr, regs->nip);
-#endif	
+  
+#if NOISY_INSTRFAULT
+  printk("Instr fault on %x\n",regs->dar);
+#endif
   if (user_mode(regs)) mode |= 0x04;
   if (regs->dsisr & 0x02000000) mode |= 0x02;  /* Load/store */
   if (regs->dsisr & 0x08000000) mode |= 0x01;  /* Protection violation */
+  
   if (mode & 0x01)
   {
-    do_page_fault(regs, regs->dar, mode);
+    do_page_fault(regs, regs->dar, mode); 
     return;
   }
   for (tries = 0;  tries < 1;  tries++)
   {
+    /*     dir = pgd_offset(current->mm, regs->nip & PAGE_MASK); */
     dir = pgd_offset(current->mm, regs->dar & PAGE_MASK);
+#ifdef NOISY_INSTRFAULT
+/*	printk("regs->dar=%x current=%x current->mm=%x current->mm->pgd=%x current->tss.pg_tables=%x\n",
+	       regs->dar,current,current->mm,current->mm->pgd,current->tss.pg_tables);*/
+#endif
     if (dir)
     {
-      pmd = pmd_offset(dir, regs->dar & PAGE_MASK);
+      pmd = pmd_offset(dir, regs->dar & PAGE_MASK); 
       if (pmd && pmd_present(*pmd))
       {
-	pte = pte_offset(pmd, regs->dar & PAGE_MASK);
-	if (pte && pte_present(*pte))
-	{
+ 	pte = pte_offset(pmd, regs->dar & PAGE_MASK); 
+
+#ifdef NOISY_INSTRFAULT
+/*	printk("dir %x(%x) pmd %x(%x) pte %x\n",dir,*dir,pmd,*pmd,pte);*/
 #if 0
-	  printk("Page mapped - PTE: %x[%x]\n", pte, *(long *)pte);
+	printk("pgd_offset mm=%x mm->pgd=%x dirshouldbe=%x\n",
+	       current->mm, current->mm->pgd,
+	       current->mm->pgd+((regs->dar&PAGE_MASK) >> PGDIR_SHIFT));
+	printk("dir is %x\n", dir);
+	
+	/* 	printk("got pte\n"); */
+	if (pte) {
+	  printk("pgd=%x; dir=%x->%x; pmd=%x->%x; pte=%x; \n",
+		 current->mm->pgd,dir,*dir,pmd,*pmd,pte);
+	  if (pte_present(*pte)) {
+	    printk("pte present\n");
+	  } else {
+	    printk("pte not present\n");
+	  }
+	} else {
+	  printk("pte false\n");
+	}
 #endif
-	  MMU_hash_page(&current->tss, regs->dar & PAGE_MASK, pte);
+#endif
+	if (pte && pte_present(*pte))
+	{
+/* 	  MMU_hash_page(&current->tss, regs->nip & PAGE_MASK, pte); */
+ 	  MMU_hash_page(&current->tss, regs->dar & PAGE_MASK, pte); 
 	  return;
 	}
       }
     } else
     {
-#if 1
-  panic("No PGD Instruction Access Fault - Loc: %x, DSISR: %x, PC: %x\n", regs->dar, regs->dsisr, regs->nip);
-#endif	
-      printk("No PGD\n");
+#ifdef NOISY_INSTRFAULT      
+      panic("No PGD Instruction Access Fault - Loc: %x, DSISR: %x, PC: %x current->mm\n",
+	    regs->dar, regs->dsisr, regs->nip, current->mm);
+#endif
     }
-    do_page_fault(regs, regs->dar, mode);
+/*     do_page_fault(regs, regs->nip, mode); */
+     do_page_fault(regs, regs->dar, mode);
   }
 }
 
@@ -138,24 +184,15 @@ void do_page_fault(struct pt_regs *regs, unsigned long address, unsigned long er
 {
   struct vm_area_struct * vma;
   unsigned long page;
-/*  printk("\ndo_page_fault()\n");*/
+
+/*   printk("In do_page_fault()\n"); */
 #if 1
   for (vma = current->mm->mmap ; ; vma = vma->vm_next)
   {
     if (!vma)
     {
-#if 0 /* mfisk */
-        {   struct vm_area_struct * mmp;
-
-          for(mmp=current->mm->mmap; mmp; mmp=mmp->vm_next) {
-            printk("notinmap: current: %x; mm: %x; mmap: %x; vma: %x to %x flags: %x\n",
-                   current, current->mm, mmp, mmp->vm_start, mmp->vm_end, mmp->vm_flags);
-          }
-        }
-#endif
-       panic("do_page_fault()  !vma \n");
-      panic("not in map: ip = %x; current=%x; mm=%x; mmap=%x; address = %x error_code = %x\n",
-	    regs->nip, current, current->mm, current->mm->mmap, address, error_code);
+      panic("!vma: ip = %x; current=%x[%d]; mm=%x; mmap=%x; address = %x error_code = %x\n",
+	    regs->nip, current,current->pid,current->mm,current->mm->mmap, address, error_code);
       goto bad_area;
     }
     if (vma->vm_end > address)
@@ -164,6 +201,8 @@ void do_page_fault(struct pt_regs *regs, unsigned long address, unsigned long er
 #else
   vma = find_vma(current, address);
   if (!vma)
+  {
+  }
     goto bad_area;
 #endif
   if (vma->vm_start <= address){
@@ -171,13 +210,19 @@ void do_page_fault(struct pt_regs *regs, unsigned long address, unsigned long er
   }
   if (!(vma->vm_flags & VM_GROWSDOWN))
   {
+    printk("stack: gpr[1]=%x ip = %x; current=%x[%d]; mm=%x; mmap=%x; address = %x error_code = %x\n",regs->gpr[1],regs->nip, current,current->pid,current->mm,current->mm->mmap, address, error_code);
     panic("stack\n");
     goto bad_area;
   }
   if (vma->vm_end - address > current->rlim[RLIMIT_STACK].rlim_cur)
-  {    panic("stack 2\n");
+  {
+    printk("stack2: vma->vm_end-addres %x rlim %x\n", vma->vm_end - address,
+	   current->rlim[RLIMIT_STACK].rlim_cur);
+    printk("stack2: vm_end %x address = %x\n", vma->vm_end,address);
+    printk("stack2: gpr[1]=%x ip = %x; current=%x[%d]; mm=%x; mmap=%x; address = %x error_code = %x\n",regs->gpr[1],regs->nip, current,current->pid,current->mm,current->mm->mmap, address, error_code);
+    panic("stack2\n");
     goto bad_area;
-     }
+  }
   vma->vm_offset -= vma->vm_start - (address & PAGE_MASK);
   vma->vm_start = (address & PAGE_MASK);
   
@@ -192,8 +237,8 @@ void do_page_fault(struct pt_regs *regs, unsigned long address, unsigned long er
   if (error_code & 2) {
     if (!(vma->vm_flags & VM_WRITE))
     {
-      panic("\ndo_page_fault()  write\n");
-      panic("\ndo_page_fault() write! current: %x, address:%x, vm_flags: %x, mm: %x; vma(%x) %x to %x\n",
+      panic("do_page_fault()  write\n");
+      panic("do_page_fault() write! current: %x, address:%x, vm_flags: %x, mm: %x; vma(%x) %x to %x\n",
 	    current,address,vma->vm_flags,current->mm,vma,vma->vm_start,vma->vm_end);
       goto bad_area;
     }
@@ -224,7 +269,10 @@ void do_page_fault(struct pt_regs *regs, unsigned long address, unsigned long er
       goto bad_area; 
     }
   }
+/*   printk("premm: pgd[0] = %x[%x]\n",current->mm->pgd,*(current->mm->pgd)); */
   handle_mm_fault(vma, address, error_code & 2); 
+/*   printk("handled fault for %x in %x to %x flags %x\n", */
+/* 	 address,vma->vm_start,vma->vm_end,vma->vm_flags); */
   return;
   
   /*
@@ -233,16 +281,21 @@ void do_page_fault(struct pt_regs *regs, unsigned long address, unsigned long er
    */
 bad_area:
   if (user_mode(regs)) {
-    panic("Task: %x, PC: %x, bad area! - Addr: %x\n", current, regs->nip, address);
+    printk("Task: %x, PC: %x, bad area! - Addr: %x\n", current, regs->nip, address);
     send_sig(SIGSEGV, current, 1);
     return;
   }
 #if 0
-  panic("\nKERNEL! Task: %x, PC: %x, bad area! - Addr: %x, PGDIR: %x\n",
+  panic("KERNEL! Task: %x, PC: %x, bad area! - Addr: %x, PGDIR: %x\n",
 	 current, regs->nip, address, current->tss.pg_tables);
 #else
-  panic("\nKERNELmm! current: %x, address:%x, vm_flags: %x, mm: %x; vma(%x) %x to %x\n",
+  /*  panic("KERNEL mm! current: %x,  address:%x, vm_flags: %x, mm: %x; \nvma(%x) %x to %x swapper_pg_dir %x\n",
+	current,address,vma->vm_flags,current->mm,vma,vma->vm_start,vma->vm_end,
+	swapper_pg_dir);*/
+  printk("KERNEL mm! current: %x,  address:%x, vm_flags: %x, mm: %x; vma(%x) %x to %x\n",
 	current,address,vma->vm_flags,current->mm,vma,vma->vm_start,vma->vm_end);
+  panic("Kernel access of bad area\n");
+	 
 #endif
   
   while (1) ;

arch/ppc/mm/init.c

@@ -5,6 +5,7 @@
  *  Ported to PPC by Gary Thomas
  */
 
+
 #include <linux/config.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
@@ -27,7 +28,7 @@
    making it 8k for now.  will change later.
       -- Cort
    */
-pgd_t swapper_pg_dir[1024*8];
+pgd_t swapper_pg_dir[1024];
 /*pgd_t *swapper_pg_dir;*/
 
 pte *MMU_get_page(void);
@@ -331,6 +332,7 @@ BAT BAT1 =
    };
 BAT BAT2 =
    {
+/* map kernel with bats 0 = yes */
 #if 1
    	{
    		0x00000000>>17, 	/* bepi */
@@ -468,9 +470,9 @@ void MMU_init(void)
 {
 	int i, p;
 	SEGREG *segs;
-	_printk("MMU init - started\n");
+/*	_printk("MMU init - started\n");*/
 	find_end_of_memory();
-	_printk("  Start at 0x%08X, End at 0x%08X, Hash at 0x%08X\n", _start, _end, Hash);
+/*	_printk("  Start at 0x%08X, End at 0x%08X, Hash at 0x%08X\n", _start, _end, Hash);*/
 	_SDR1 = ((unsigned long)Hash & 0x00FFFFFF) | Hash_mask;
 	p = (int)mmu_pages;
 	p = (p + (MMU_PAGE_SIZE-1)) & ~(MMU_PAGE_SIZE-1);
@@ -507,7 +509,7 @@ void MMU_init(void)
 	{
 		MMU_map_page(&init_task.tss, i, i & 0x00FFFFFF, PAGE_KERNEL);
 	}
-	_printk("MMU init - done!\n");
+/*	_printk("MMU init - done!\n");*/
 }
 
 pte *
@@ -518,7 +520,7 @@ MMU_get_page(void)
 	{
 		bzero((char *)pg, MMU_PAGE_SIZE);
 	}
-	_printk("MMU Allocate Page at %08X\n", pg);
+/*	_printk("MMU Allocate Page at %08X\n", pg);*/
 	return(pg);
 }
 

drivers/block/Config.in

@@ -5,7 +5,7 @@ mainmenu_option next_comment
 comment 'block devices'
 
 tristate 'Normal floppy disk support' CONFIG_BLK_DEV_FD
-bool 'RAM disk support' CONFIG_BLK_DEV_RAM
+tristate 'RAM disk support' CONFIG_BLK_DEV_RAM
 bool 'Normal (MFM/RLL) disk and IDE disk/cdrom support' CONFIG_ST506
 if [ "$CONFIG_ST506" = "y" ]; then
   comment 'Please see drivers/block/README.ide for help/info on IDE drives'

drivers/block/Makefile

@@ -30,6 +30,10 @@ endif
 
 ifeq ($(CONFIG_BLK_DEV_RAM),y)
 L_OBJS += rd.o
+else
+  ifeq ($(CONFIG_BLK_DEV_RAM),m)
+  M_OBJS += rd.o
+  endif
 endif
 
 ifeq ($(CONFIG_BLK_DEV_HD),y)

drivers/block/rd.c

@@ -23,6 +23,8 @@
  * loader now also loads into a dynamic (buffer cache based) ramdisk,
  * not the old static ramdisk.  Support for the old static ramdisk has
  * been completely removed.
+ *
+ * Loadable module support added by Tom Dyas.
  */
 
 #include <linux/sched.h>
@@ -35,6 +37,7 @@
 #include <linux/mman.h>
 #include <linux/malloc.h>
 #include <linux/ioctl.h>
+#include <linux/module.h>
 
 #include <asm/system.h>
 #include <asm/segment.h>
@@ -52,8 +55,10 @@ extern void wait_for_keypress(void);
 #define BUILD_CRAMDISK
 #define NUM_RAMDISKS 8
 
+#ifndef MODULE
 void rd_load(void);
 static int crd_load(struct file *fp, struct file *outfp);
+#endif
 
 /* Various static variables go here... mostly used within the ramdisk code only. */
 
@@ -66,9 +71,11 @@ static int rd_blocksizes[NUM_RAMDISKS];
  * architecture-specific setup routine (from the stored bootsector
  * information). 
  */
+#ifndef MODULE
 int rd_doload = 0;		/* 1 = load ramdisk, 0 = don't load */
 int rd_prompt = 1;		/* 1 = prompt for ramdisk, 0 = don't prompt */
 int rd_image_start = 0;		/* starting block # of image */
+#endif
 
 /*
  *  Basically, my strategy here is to set up a buffer-head which can't be
@@ -143,9 +150,18 @@ static int rd_open(struct inode * inode, struct file * filp)
 	if (DEVICE_NR(inode->i_rdev) >= NUM_RAMDISKS)
 		return -ENODEV;
 
+	MOD_INC_USE_COUNT;
+
 	return 0;
 }
 
+#ifdef MODULE
+static void rd_release(struct inode * inode, struct file * filp)
+{
+	MOD_DEC_USE_COUNT;
+}
+#endif
+
 static struct file_operations fd_fops = {
 	NULL,		/* lseek - default */
 	block_read,	/* read - block dev write */
@@ -155,7 +171,11 @@ static struct file_operations fd_fops = {
 	rd_ioctl, 	/* ioctl */
 	NULL,		/* mmap */
 	rd_open,	/* open */
+#ifndef MODULE
 	NULL,		/* no special release code... */
+#else
+	rd_release,	/* module needs to decrement use count */
+#endif
 	block_fsync		/* fsync */ 
 };
 
@@ -165,7 +185,7 @@ int rd_init(void)
 	int		i;
 
 	if (register_blkdev(MAJOR_NR, "ramdisk", &fd_fops)) {
-		printk("RAMDISK2 : Could not get major %d", MAJOR_NR);
+		printk("RAMDISK: Could not get major %d", MAJOR_NR);
 		return -EIO;
 	}
 
@@ -181,6 +201,7 @@ int rd_init(void)
 	return 0;
 }
 
+#ifndef MODULE
 /*
  * This routine tries to a ramdisk image to load, and returns the
  * number of blocks to read for a non-compressed image, 0 if the image
@@ -523,7 +544,27 @@ crd_load(struct file * fp, struct file *outfp)
 	return result;
 }
 
-#endif
+#endif  /* BUILD_CRAMDISK */
+
+#endif  /* MODULE */
+
 
+/* loadable module support */
 
+#ifdef MODULE
+
+int init_module(void)
+{
+	int error = rd_init();
+	if (!error)
+		printk(KERN_INFO "RAMDISK: Loaded as module.\n");
+	return error;
+}
+
+void cleanup_module(void)
+{
+	unregister_blkdev( MAJOR_NR, "ramdisk" );
+	blk_dev[MAJOR_NR].request_fn = 0;
+}
 
+#endif  /* MODULE */

drivers/cdrom/sonycd535.c

@@ -286,7 +286,8 @@ static inline void
 enable_interrupts(void)
 {
 #ifdef USE_IRQ
-	/* this code snarfed from cdu31a.c; it will not
+	/*
+	 * This code was taken from cdu31a.c; it will not
 	 * directly work for the cdu535 as written...
 	 */
 	curr_control_reg |= ( SONY_ATTN_INT_EN_BIT
@@ -300,7 +301,8 @@ static inline void
 disable_interrupts(void)
 {
 #ifdef USE_IRQ
-	/* this code snarfed from cdu31a.c; it will not
+	/*
+	 * This code was taken from cdu31a.c; it will not
 	 * directly work for the cdu535 as written...
 	 */
 	curr_control_reg &= ~(SONY_ATTN_INT_EN_BIT

drivers/net/ac3200.c

@@ -158,7 +158,7 @@ static int ac_probe1(int ioaddr, struct device *dev)
 		   inb(ioaddr + AC_ID_PORT + 2), inb(ioaddr + AC_ID_PORT + 3));
 #endif
 
-	/* Assign and snarf the interrupt now. */
+	/* Assign and allocate the interrupt now. */
 	if (dev->irq == 0)
 		dev->irq = config2irq(inb(ioaddr + AC_CONFIG));
 	else if (dev->irq == 2)

drivers/net/ewrk3.h

@@ -61,43 +61,43 @@
 /*
 ** Control and Status Register bit definitions (EWRK3_CSR)
 */
-#define RA		0x80	    /* Runt Accept */
-#define PME		0x40	    /* Promiscuous Mode Enable */
-#define MCE		0x20	    /* Multicast Enable */ 
-#define TNE		0x08	    /* TX Done Queue Not Empty */
-#define RNE		0x04	    /* RX Queue Not Empty */
-#define TXD		0x02	    /* TX Disable */
-#define RXD		0x01	    /* RX Disable */
+#define CSR_RA		0x80	    /* Runt Accept */
+#define CSR_PME		0x40	    /* Promiscuous Mode Enable */
+#define CSR_MCE		0x20	    /* Multicast Enable */ 
+#define CSR_TNE		0x08	    /* TX Done Queue Not Empty */
+#define CSR_RNE		0x04	    /* RX Queue Not Empty */
+#define CSR_TXD		0x02	    /* TX Disable */
+#define CSR_RXD		0x01	    /* RX Disable */
 
 /*
 ** Control Register bit definitions (EWRK3_CR)
 */
-#define APD		0x80	/* Auto Port Disable */
-#define PSEL		0x40	/* Port Select (0->TP port) */
-#define LBCK		0x20	/* LoopBaCK enable */
-#define FDUP		0x10	/* Full DUPlex enable */
-#define FBUS		0x08	/* Fast BUS enable (ISA clk > 8.33MHz) */
-#define EN_16		0x04	/* ENable 16 bit memory accesses */
-#define LED		0x02	/* LED (1-> turn on) */
+#define CR_APD		0x80	/* Auto Port Disable */
+#define CR_PSEL		0x40	/* Port Select (0->TP port) */
+#define CR_LBCK		0x20	/* LoopBaCK enable */
+#define CR_FDUP		0x10	/* Full DUPlex enable */
+#define CR_FBUS		0x08	/* Fast BUS enable (ISA clk > 8.33MHz) */
+#define CR_EN_16	0x04	/* ENable 16 bit memory accesses */
+#define CR_LED		0x02	/* LED (1-> turn on) */
 
 /*
 ** Interrupt Control Register bit definitions (EWRK3_ICR)
 */
-#define IE		0x80	/* Interrupt Enable */
-#define IS		0x60	/* Interrupt Selected */
-#define TNEM		0x08	/* TNE Mask (0->mask) */
-#define RNEM		0x04	/* RNE Mask (0->mask) */
-#define TXDM		0x02	/* TXD Mask (0->mask) */
-#define RXDM		0x01	/* RXD Mask (0->mask) */
+#define ICR_IE		0x80	/* Interrupt Enable */
+#define ICR_IS		0x60	/* Interrupt Selected */
+#define ICR_TNEM	0x08	/* TNE Mask (0->mask) */
+#define ICR_RNEM	0x04	/* RNE Mask (0->mask) */
+#define ICR_TXDM	0x02	/* TXD Mask (0->mask) */
+#define ICR_RXDM	0x01	/* RXD Mask (0->mask) */
 
 /*
 ** Transmit Status Register bit definitions (EWRK3_TSR)
 */
-#define NCL		0x80	/* No Carrier Loopback */
-#define ID		0x40	/* Initially Deferred */
-#define LCL		0x20	/* Late CoLlision */
-#define ECL		0x10	/* Excessive CoLlisions */
-#define RCNTR		0x0f	/* Retries CouNTeR */
+#define TSR_NCL		0x80	/* No Carrier Loopback */
+#define TSR_ID		0x40	/* Initially Deferred */
+#define TSR_LCL		0x20	/* Late CoLlision */
+#define TSR_ECL		0x10	/* Excessive CoLlisions */
+#define TSR_RCNTR	0x0f	/* Retries CouNTeR */
 
 /*
 ** I/O Page Register bit definitions (EWRK3_IOPR)
@@ -111,67 +111,68 @@
 /*
 ** I/O Base Register bit definitions (EWRK3_IOBR)
 */
-#define EISA		0x20	/* Enable EISA ID and Control Registers */
-#define IOB		0x1f	/* Compare bits for I/O Base Address */
+#define EISA_REGS_EN	0x20	/* Enable EISA ID and Control Registers */
+#define EISA_IOB        0x1f	/* Compare bits for I/O Base Address */
 
 /*
-** I/O Configuration/Management Register bit definitions (EWRK3_CMR)
+** I/O Congiguration/Management Register bit definitions (EWRK3_CMR)
 */
-#define RA              0x80    /* Read Ahead */
-#define WB              0x40    /* Write Behind */
-#define LINK		0x20	/* 0->TP */
-#define POLARITY	0x10	/* Informational */
-#define NO_EEPROM	0x0c	/* NO_EEPROM<1:0> pin status */
-#define HS	        0x08	/* Hard Strapped pin status (LeMAC2) */
-#define PNP             0x04    /* Plug 'n Play */
-#define DRAM		0x02	/* 0-> 1DRAM, 1-> 2 DRAM on board */
-#define _0WS            0x01    /* Zero Wait State */
+#define CMR_RA          0x80    /* Read Ahead */
+#define CMR_WB          0x40    /* Write Behind */
+#define CMR_LINK        0x20	/* 0->TP */
+#define CMR_POLARITY    0x10	/* Informational */
+#define CMR_NO_EEPROM	0x0c	/* NO_EEPROM<1:0> pin status */
+#define CMR_HS          0x08	/* Hard Strapped pin status (LeMAC2) */
+#define CMR_PNP         0x04    /* Plug 'n Play */
+#define CMR_DRAM        0x02	/* 0-> 1DRAM, 1-> 2 DRAM on board */
+#define CMR_0WS         0x01    /* Zero Wait State */
 
 /* 
 ** MAC Receive Status Register bit definitions
 */
 
-#define ROK     	0x80 	/* Receive OK summary */
-#define IAM     	0x10 	/* Individual Address Match */
-#define MCM     	0x08 	/* MultiCast Match */
-#define DBE     	0x04 	/* Dribble Bit Error */
-#define CRC     	0x02 	/* CRC error */
-#define PLL     	0x01 	/* Phase Lock Lost */
+#define R_ROK     	0x80 	/* Receive OK summary */
+#define R_IAM     	0x10 	/* Individual Address Match */
+#define R_MCM     	0x08 	/* MultiCast Match */
+#define R_DBE     	0x04 	/* Dribble Bit Error */
+#define R_CRC     	0x02 	/* CRC error */
+#define R_PLL     	0x01 	/* Phase Lock Lost */
 
 /* 
 ** MAC Transmit Control Register bit definitions
 */
 
-#define SQEE    	0x40 	/* SQE Enable - look for heartbeat  */
-#define SED     	0x20 	/* Stop when Error Detected */
-#define QMODE     	0x10 	/* Q_MODE */
-#define LAB             0x08 	/* Less Aggressive Backoff */
-#define PAD     	0x04 	/* PAD Runt Packets */
-#define IFC     	0x02 	/* Insert Frame Check */
-#define ISA     	0x01 	/* Insert Source Address */
+#define TCR_SQEE    	0x40 	/* SQE Enable - look for heartbeat  */
+#define TCR_SED     	0x20 	/* Stop when Error Detected */
+#define TCR_QMODE     	0x10 	/* Q_MODE */
+#define TCR_LAB         0x08 	/* Less Aggressive Backoff */
+#define TCR_PAD     	0x04 	/* PAD Runt Packets */
+#define TCR_IFC     	0x02 	/* Insert Frame Check */
+#define TCR_ISA     	0x01 	/* Insert Source Address */
 
 /* 
 ** MAC Transmit Status Register bit definitions
 */
 
-#define VSTS    	0x80 	/* Valid STatuS */
-#define MAC_CTU     	0x40 	/* Cut Through Used */
-#define MAC_SQE     	0x20 	/* Signal Quality Error */
-#define MAC_NCL     	0x10 	/* No Carrier Loopback */
-#define MAC_LCL         0x08 	/* Late Collision */
-#define MAC_ID      	0x04 	/* Initially Deferred */
-#define MAC_COLL     	0x03 	/* COLLision status */
-#define MAC_XCOLL       0x03    /* Excessive Collisions */
-#define MAC_MCOLL       0x02    /* Multiple Collisions */
-#define MAC_OCOLL       0x01    /* One Collision */
-#define MAC_NOCOLL      0x00    /* No Collisions */
-#define MAC_XUR         0x03    /* Excessive Underruns */
-#define MAC_TXE         0x7f    /* TX Errors */
+#define T_VSTS    	0x80 	/* Valid STatuS */
+#define T_CTU     	0x40 	/* Cut Through Used */
+#define T_SQE     	0x20 	/* Signal Quality Error */
+#define T_NCL     	0x10 	/* No Carrier Loopback */
+#define T_LCL           0x08 	/* Late Collision */
+#define T_ID      	0x04 	/* Initially Deferred */
+#define T_COLL     	0x03 	/* COLLision status */
+#define T_XCOLL         0x03    /* Excessive Collisions */
+#define T_MCOLL         0x02    /* Multiple Collisions */
+#define T_OCOLL         0x01    /* One Collision */
+#define T_NOCOLL        0x00    /* No Collisions */
+#define T_XUR           0x03    /* Excessive Underruns */
+#define T_TXE           0x7f    /* TX Errors */
 
 /* 
 ** EISA Configuration Register bit definitions 
 */
 
+#define EISA_ID       iobase + 0x0c80  /* EISA ID Registers */ 
 #define EISA_ID0      iobase + 0x0c80  /* EISA ID Register 0 */ 
 #define EISA_ID1      iobase + 0x0c81  /* EISA ID Register 1 */ 
 #define EISA_ID2      iobase + 0x0c82  /* EISA ID Register 2 */ 
@@ -283,6 +284,8 @@
 #define MASK_INTERRUPTS   1
 #define UNMASK_INTERRUPTS 0
 
+#define EEPROM_OFFSET(a) ((u_short)((u_long)(a)))
+
 /*
 ** Include the IOCTL stuff
 */

drivers/net/lance.c

@@ -569,7 +569,7 @@ lance_open(struct device *dev)
 	}
 
 	/* We used to allocate DMA here, but that was silly.
-	   DMA lines can't be shared!  We now permanently snarf them. */
+	   DMA lines can't be shared!  We now permanently allocate them. */
 
 	irq2dev_map[dev->irq] = dev;
 

drivers/net/net_init.c

@@ -237,7 +237,6 @@ int ether_config(struct device *dev, struct ifmap *map)
 	return 0;
 }
 
-#ifdef CONFIG_MODULES
 int register_netdev(struct device *dev)
 {
 	struct device *d = dev_base;
@@ -357,8 +356,6 @@ void unregister_netdev(struct device *dev)
 
 	restore_flags(flags);
 }
-#endif		/* CONFIG_MODULES */
-
 
 
 /*

drivers/net/pi2.c

@@ -1407,7 +1407,7 @@ static int pi_probe(struct device *dev, int card_type)
 	}
 
 	/* Grab the region */
-	snarf_region(ioaddr & 0x3f0, PI_TOTAL_SIZE);
+	request_region(ioaddr & 0x3f0, PI_TOTAL_SIZE, "pi2" );
 
 
     }				/* Only for A port */

drivers/net/pt.c

@@ -877,7 +877,7 @@ static int pt_probe(struct device *dev)
         }
 
         /* Grab the region */
-        snarf_region(ioaddr & 0x3f0, PT_TOTAL_SIZE);
+        request_region(ioaddr & 0x3f0, PT_TOTAL_SIZE, "pt" );
     } /* A port */
     dev->open = pt_open;
     dev->stop = pt_close;

drivers/scsi/aha1740.c

@@ -448,11 +448,11 @@ int aha1740_detect(Scsi_Host_Template * tpnt)
     for ( slot=MINEISA; slot <= MAXEISA; slot++ )
     {
 	base = SLOTBASE(slot);
-
-	/* The ioports for eisa boards are generally beyond that used in the
-	   check,snarf_region code, but this may change at some point, so we
-	   go through the motions. */
-
+	/*
+	 * The ioports for eisa boards are generally beyond that used in the
+	 * check/allocate region code, but this may change at some point,
+	 * so we go through the motions.
+	 */
 	if(check_region(base, 0x5c)) continue;  /* See if in use */
 	if ( aha1740_test_port())  break;
     }