Merge angband.namesys.com:/home/green/bk/linux-2.5

into angband.namesys.com:/home/green/bk_work/reiser3-linux-2.5-test

CREDITS

@@ -2779,6 +2779,10 @@ N: Christopher Smith
 E: x@xman.org
 D: Tulip net driver hacker
 
+N: Mark Smith
+E: mark.smith@comdev.cc
+D: Multicast support in bonding driver
+
 N: Miquel van Smoorenburg
 E: miquels@cistron.nl
 D: Kernel and net hacker. Sysvinit, minicom. doing Debian stuff.

Documentation/DocBook/Makefile

@@ -161,18 +161,20 @@ LOG	:=	$(patsubst %.sgml, %.log, $(BOOKS))
 OUT	:=	$(patsubst %.sgml, %.out, $(BOOKS))
 
 clean:
-	rm -f core *~
-	rm -f $(BOOKS)
-	rm -f $(DVI) $(AUX) $(TEX) $(LOG) $(OUT)
-	rm -f $(PNG-parportbook) $(EPS-parportbook)
-	rm -f $(C-procfs-example)
-
-mrproper: clean
-	rm -f $(PS) $(PDF)
-	rm -f -r $(HTML)
-	rm -f .depend
-	rm -f $(TOPDIR)/scripts/mkdep-docbook
-	rm -rf DBTOHTML_OUTPUT*
+	@echo 'Cleaning up (DocBook)'
+	@rm -f core *~
+	@rm -f $(BOOKS)
+	@rm -f $(DVI) $(AUX) $(TEX) $(LOG) $(OUT)
+	@rm -f $(PNG-parportbook) $(EPS-parportbook)
+	@rm -f $(C-procfs-example)
+
+mrproper:
+	@echo 'Making mrproper (DocBook)'
+	@rm -f $(PS) $(PDF)
+	@rm -f -r $(HTML)
+	@rm -f .depend
+	@rm -f $(TOPDIR)/scripts/mkdep-docbook
+	@rm -rf DBTOHTML_OUTPUT*
 
 %.ps : %.sgml
 	@(which db2ps > /dev/null 2>&1) || \

Documentation/filesystems/ntfs.txt

@@ -73,52 +73,27 @@ sloppy=<BOOL>		If sloppy is specified, ignore unknown mount options.
 			Otherwise the default behaviour is to abort mount if
 			any unknown options are found.
 
-posix=<bool>		Deprecated option. Still supported but please use
-			show_inodes=posix in the future. See description for
-			show_inodes=opt.
-
-show_sys_files=<bool>	Deprecated option. Still supported but please use
-			show_inodes=system in the future. See description for
-			show_inodes=opt.
-
-show_inodes=opt		Allows choice of which types of inode names readdir()
-			returns, i.e. this affects what "ls" shows. Following
-			values can be used for "opt":
-			   system: show system files
-			   win32:  long file names (includes POSIX) [DEFAULT]
-			   long:   same as win32
-			   dos:    short file names only (excludes POSIX)
-			   short:  same as dos
-			   posix:  same as both win32 and dos
-			   all:    all file names
-			Note that the options are additive, i.e. specifying:
-			   show_inodes=system,show_inodes=win32,show_inodes=dos
-			is the same as specifying:
-			   show_inodes=all
-			Note that the "posix" and "all" options will show all
-			directory names, BUT the link count on each directory
-			inode entry is set to 1, due to Linux not supporting
-			directory hard links. This may well confuse some
-			user space applications, since the directory names will
-			have the same inode numbers. Thus it is NOT advisable
-			to use the "posix" and "all" options. We provide them
-			only for completeness sake.
-			Further, note that the "system" option will not show
-			"$MFT" due to bugs/mis-features in glibc. Even though
-			it does not show, you can specifically "ls" it:
-				ls -l \$MFT
-			And of course you can stat it, too.
-			Further, note that irrespective of what show_inodes
-			option(s) you use, all files are accessible when you
-			specify the correct name, even though they may not be
-			shown in a normal "ls", i.e. you can always access the
-			system files and both the short and long file names of
-			files and directories.
-			Finally, note that win32 and dos file names are not
-			case sensitive and can be accessed using any
-			combination of lower and upper case, while POSIX file
-			names are case sensitive and they can only be accessed
-			given the correct case.
+show_sys_files=<BOOL>	If show_sys_files is specified, show the system files
+			in directory listings. Otherwise the default behaviour
+			is to hide the system files.
+			Note that even when show_sys_files is specified, "$MFT"
+			will not be visible due to bugs/mis-features in glibc.
+			Further, note that irrespective of show_sys_files, all
+			files are accessible by name, i.e. you can always do
+			"ls -l \$UpCase" for example to specifically show the
+			system file containing the Unicode upcase table.
+
+case_sensitive=<BOOL>	If case_sensitive is specified, treat all file names as
+			case sensitive and create file names in the POSIX
+			namespace. Otherwise the default behaviour is to treat
+			file names as case insensitive and to create file names
+			in the WIN32/LONG name space. Note, the Linux NTFS
+			driver will never create short file names and will
+			remove them on rename/delete of the corresponding long
+			file name.
+			Note that files remain accessible via their short file
+			name, if it exists. If case_sensitive, you will need to
+			provide the correct case of the short file name.
 
 errors=opt		What to do when critical file system errors are found.
 			Following values can be used for "opt":
@@ -174,12 +149,22 @@ Features
   (from 9:43 minutes on average down to 7:53). The time spent in user space
   was unchanged but the time spent in the kernel was decreased by a factor of
   2.5 (from 85 CPU seconds down to 33).
+- The driver does not support short file names in general. For backwards
+  compatibility, we implement access to files using their short file names if
+  they exist. The driver will not create short file names however, and a rename
+  will discard any existing short file name.
 
 
 Known bugs and (mis-)features
 =============================
 
-- None
+- The link count on each directory inode entry is set to 1, due to Linux not
+  supporting directory hard links. This may well confuse some user space
+  applications, since the directory names will have the same inode numbers.
+  This also speeds up ntfs_read_inode() immensely. And we haven't found any
+  problems with this approach so far. If you find a problem with this, please
+  let us know.
+
 
 Please send bug reports/comments/feedback/abuse to the Linux-NTFS development
 list at sourceforge: linux-ntfs-dev@lists.sourceforge.net
@@ -260,8 +245,20 @@ number of sectors BEFORE attempting to use it. You have been warned!
 ChangeLog
 =========
 
-Note that a technical ChangeLog aimed at kernel hackers is in fs/ntfs/ChangeLog.
-
+Note, a technical ChangeLog aimed at kernel hackers is in fs/ntfs/ChangeLog.
+
+2.0.8:
+	- Remove now obsolete show_inodes and posix mount option(s).
+	- Restore show_sys_files mount option.
+	- Add new mount option case_sensitive, to determine if the driver
+	  treats file names as case sensitive or not.
+	- Mostly drop support for short file names (for backwards compatibility
+	  we only support accessing files via their short file name if one
+	  exists).
+	- Fix dcache aliasing issues wrt short/long file names.
+	- Cleanups and minor fixes.
+2.0.7:
+	- Just cleanups.
 2.0.6:
 	- Major bugfix to make compatible with other kernel changes. This fixes
 	  the hangs/oopses on umount.

arch/arm/boot/Makefile

@@ -114,12 +114,12 @@ endif
 
 export	SYSTEM ZTEXTADDR ZBSSADDR ZRELADDR INITRD_PHYS PARAMS_PHYS
 
-Image:	$(CONFIGURE) $(SYSTEM)
+Image:	$(SYSTEM)
 	$(OBJCOPY) -O binary -R .note -R .comment -S $(SYSTEM) $@
 
 bzImage: zImage
 
-zImage:	$(CONFIGURE) compressed/vmlinux
+zImage:	compressed/vmlinux
 	$(OBJCOPY) -O binary -R .note -R .comment -S compressed/vmlinux $@
 
 bootpImage: bootp/bootp
@@ -135,10 +135,10 @@ initrd:
 	@test "$(INITRD_PHYS)" != "" || (echo This architecture does not support INITRD; exit -1)
 	@test "$(INITRD)" != "" || (echo You must specify INITRD; exit -1)
 
-install: $(CONFIGURE) Image
+install: Image
 	sh ./install.sh $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) Image $(TOPDIR)/System.map "$(INSTALL_PATH)"
 
-zinstall: $(CONFIGURE) zImage
+zinstall: zImage
 	sh ./install.sh $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) zImage $(TOPDIR)/System.map "$(INSTALL_PATH)"
 
 clean:

arch/i386/Makefile

@@ -133,6 +133,7 @@ bzdisk: vmlinux
 	@$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
 
 install: vmlinux
+	@echo 'Cleaning up (arch)'
 	@$(MAKEBOOT) BOOTIMAGE=bzImage install
 
 archclean:

arch/i386/boot/Makefile

@@ -31,11 +31,11 @@ BOOT_INCL =	$(TOPDIR)/include/linux/config.h \
 		$(TOPDIR)/include/linux/autoconf.h \
 		$(TOPDIR)/include/asm/boot.h
 
-zImage: $(CONFIGURE) bootsect setup compressed/vmlinux tools/build
+zImage: bootsect setup compressed/vmlinux tools/build
 	$(OBJCOPY) compressed/vmlinux compressed/vmlinux.out
 	tools/build bootsect setup compressed/vmlinux.out $(ROOT_DEV) > zImage
 
-bzImage: $(CONFIGURE) bbootsect bsetup compressed/bvmlinux tools/build
+bzImage: bbootsect bsetup compressed/bvmlinux tools/build
 	$(OBJCOPY) compressed/bvmlinux compressed/bvmlinux.out
 	tools/build -b bbootsect bsetup compressed/bvmlinux.out $(ROOT_DEV) > bzImage
 
@@ -48,14 +48,14 @@ compressed/bvmlinux: $(TOPDIR)/vmlinux
 zdisk: $(BOOTIMAGE)
 	dd bs=8192 if=$(BOOTIMAGE) of=/dev/fd0
 
-zlilo: $(CONFIGURE) $(BOOTIMAGE)
+zlilo: $(BOOTIMAGE)
 	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
 	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
 	cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
 	cp $(TOPDIR)/System.map $(INSTALL_PATH)/
 	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
 
-install: $(CONFIGURE) $(BOOTIMAGE)
+install: $(BOOTIMAGE)
 	sh -x ./install.sh $(KERNELRELEASE) $(BOOTIMAGE) $(TOPDIR)/System.map "$(INSTALL_PATH)"
 
 tools/build: tools/build.c
@@ -100,7 +100,8 @@ bsetup.s: setup.S video.S Makefile $(BOOT_INCL) $(TOPDIR)/include/linux/version.
 dep:
 
 clean:
-	rm -f tools/build
-	rm -f setup bootsect zImage compressed/vmlinux.out
-	rm -f bsetup bbootsect bzImage compressed/bvmlinux.out
+	@echo 'Cleaning up (boot)'
+	@rm -f tools/build
+	@rm -f setup bootsect zImage compressed/vmlinux.out
+	@rm -f bsetup bbootsect bzImage compressed/bvmlinux.out
 	@$(MAKE) -C compressed clean

arch/i386/boot/compressed/Makefile

@@ -47,4 +47,4 @@ piggy.o:	$(SYSTEM)
 	rm -f $$tmppiggy $$tmppiggy.gz $$tmppiggy.lnk
 
 clean:
-	rm -f vmlinux bvmlinux _tmp_*
+	@rm -f vmlinux bvmlinux _tmp_*

arch/i386/kernel/Makefile

@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-EXTRA_TARGETS := head.o init_task.o
+EXTRA_TARGETS := kernel.o head.o init_task.o
 
 O_TARGET := kernel.o
 
@@ -13,7 +13,9 @@ obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \
 		pci-dma.o i386_ksyms.o i387.o bluesmoke.o dmi_scan.o \
 		bootflag.o
 
+obj-y				+= cpu/
 obj-$(CONFIG_MCA)		+= mca.o
+obj-$(CONFIG_EISA)		+= eisa.o
 obj-$(CONFIG_MTRR)		+= mtrr.o
 obj-$(CONFIG_X86_MSR)		+= msr.o
 obj-$(CONFIG_X86_CPUID)		+= cpuid.o
@@ -31,6 +33,6 @@ obj-y += setup-visws.o
 obj-$(CONFIG_X86_VISWS_APIC)	+= visws_apic.o
 endif
 
-EXTRA_AFLAGS	:= -traditional
+EXTRA_AFLAGS   := -traditional
 
 include $(TOPDIR)/Rules.make

arch/i386/kernel/cpu/Makefile

+#
+# Makefile for x86-compatible CPU details and quirks
+#
+
+obj-y	:=	common.o proc.o
+
+obj-y	+=	amd.o
+obj-y	+=	cyrix.o
+obj-y	+=	centaur.o
+obj-y	+=	transmeta.o
+obj-y	+=	intel.o
+obj-y	+=	rise.o
+obj-y	+=	nexgen.o
+obj-y	+=	umc.o
+
+include $(TOPDIR)/Rules.make

arch/i386/kernel/cpu/amd.c

+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+#include "cpu.h"
+
+/*
+ *	B step AMD K6 before B 9730xxxx have hardware bugs that can cause
+ *	misexecution of code under Linux. Owners of such processors should
+ *	contact AMD for precise details and a CPU swap.
+ *
+ *	See	http://www.multimania.com/poulot/k6bug.html
+ *		http://www.amd.com/K6/k6docs/revgd.html
+ *
+ *	The following test is erm.. interesting. AMD neglected to up
+ *	the chip setting when fixing the bug but they also tweaked some
+ *	performance at the same time..
+ */
+ 
+extern void vide(void);
+__asm__(".align 4\nvide: ret");
+
+static void __init init_amd(struct cpuinfo_x86 *c)
+{
+	u32 l, h;
+	int mbytes = max_mapnr >> (20-PAGE_SHIFT);
+	int r;
+
+	/*
+	 *	FIXME: We should handle the K5 here. Set up the write
+	 *	range and also turn on MSR 83 bits 4 and 31 (write alloc,
+	 *	no bus pipeline)
+	 */
+
+	/* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
+	   3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
+	clear_bit(0*32+31, c->x86_capability);
+	
+	r = get_model_name(c);
+
+	switch(c->x86)
+	{
+		case 5:
+			if( c->x86_model < 6 )
+			{
+				/* Based on AMD doc 20734R - June 2000 */
+				if ( c->x86_model == 0 ) {
+					clear_bit(X86_FEATURE_APIC, c->x86_capability);
+					set_bit(X86_FEATURE_PGE, c->x86_capability);
+				}
+				break;
+			}
+			
+			if ( c->x86_model == 6 && c->x86_mask == 1 ) {
+				const int K6_BUG_LOOP = 1000000;
+				int n;
+				void (*f_vide)(void);
+				unsigned long d, d2;
+				
+				printk(KERN_INFO "AMD K6 stepping B detected - ");
+				
+				/*
+				 * It looks like AMD fixed the 2.6.2 bug and improved indirect 
+				 * calls at the same time.
+				 */
+
+				n = K6_BUG_LOOP;
+				f_vide = vide;
+				rdtscl(d);
+				while (n--) 
+					f_vide();
+				rdtscl(d2);
+				d = d2-d;
+				
+				/* Knock these two lines out if it debugs out ok */
+				printk(KERN_INFO "K6 BUG %ld %d (Report these if test report is incorrect)\n", d, 20*K6_BUG_LOOP);
+				printk(KERN_INFO "AMD K6 stepping B detected - ");
+				/* -- cut here -- */
+				if (d > 20*K6_BUG_LOOP) 
+					printk("system stability may be impaired when more than 32 MB are used.\n");
+				else 
+					printk("probably OK (after B9730xxxx).\n");
+				printk(KERN_INFO "Please see http://www.mygale.com/~poulot/k6bug.html\n");
+			}
+
+			/* K6 with old style WHCR */
+			if (c->x86_model < 8 ||
+			   (c->x86_model== 8 && c->x86_mask < 8)) {
+				/* We can only write allocate on the low 508Mb */
+				if(mbytes>508)
+					mbytes=508;
+
+				rdmsr(MSR_K6_WHCR, l, h);
+				if ((l&0x0000FFFF)==0) {
+					unsigned long flags;
+					l=(1<<0)|((mbytes/4)<<1);
+					local_irq_save(flags);
+					wbinvd();
+					wrmsr(MSR_K6_WHCR, l, h);
+					local_irq_restore(flags);
+					printk(KERN_INFO "Enabling old style K6 write allocation for %d Mb\n",
+						mbytes);
+				}
+				break;
+			}
+
+			if ((c->x86_model == 8 && c->x86_mask >7) ||
+			     c->x86_model == 9 || c->x86_model == 13) {
+				/* The more serious chips .. */
+
+				if(mbytes>4092)
+					mbytes=4092;
+
+				rdmsr(MSR_K6_WHCR, l, h);
+				if ((l&0xFFFF0000)==0) {
+					unsigned long flags;
+					l=((mbytes>>2)<<22)|(1<<16);
+					local_irq_save(flags);
+					wbinvd();
+					wrmsr(MSR_K6_WHCR, l, h);
+					local_irq_restore(flags);
+					printk(KERN_INFO "Enabling new style K6 write allocation for %d Mb\n",
+						mbytes);
+				}
+
+				/*  Set MTRR capability flag if appropriate */
+				if (c->x86_model == 13 || c->x86_model == 9 ||
+				   (c->x86_model == 8 && c->x86_mask >= 8))
+					set_bit(X86_FEATURE_K6_MTRR, c->x86_capability);
+				break;
+			}
+			break;
+
+		case 6: /* An Athlon/Duron */
+ 
+			/* Bit 15 of Athlon specific MSR 15, needs to be 0
+ 			 * to enable SSE on Palomino/Morgan CPU's.
+			 * If the BIOS didn't enable it already, enable it
+			 * here.
+			 */
+			if (c->x86_model == 6 || c->x86_model == 7) {
+				if (!test_bit(X86_FEATURE_XMM, c->x86_capability)) {
+					printk(KERN_INFO "Enabling disabled K7/SSE Support.\n");
+					rdmsr(MSR_K7_HWCR, l, h);
+					l &= ~0x00008000;
+					wrmsr(MSR_K7_HWCR, l, h);
+					set_bit(X86_FEATURE_XMM, c->x86_capability);
+				}
+			}
+			break;
+
+	}
+
+	display_cacheinfo(c);
+//	return r;
+}
+
+static void amd_identify(struct cpuinfo_x86 * c)
+{
+	u32 xlvl;
+
+	if (have_cpuid_p()) {
+		generic_identify(c);
+
+		/* AMD-defined flags: level 0x80000001 */
+		xlvl = cpuid_eax(0x80000000);
+		if ( (xlvl & 0xffff0000) == 0x80000000 ) {
+			if ( xlvl >= 0x80000001 )
+				c->x86_capability[1] = cpuid_edx(0x80000001);
+			if ( xlvl >= 0x80000004 )
+				get_model_name(c); /* Default name */
+		}
+	}
+}
+
+static unsigned int amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
+{
+	/* AMD errata T13 (order #21922) */
+	if ((c->x86 == 6)) {
+		if (c->x86_model == 3 && c->x86_mask == 0)	/* Duron Rev A0 */
+			size = 64;
+		if (c->x86_model == 4 &&
+		    (c->x86_mask==0 || c->x86_mask==1))	/* Tbird rev A1/A2 */
+			size = 256;
+	}
+	return size;
+}
+
+static struct cpu_dev amd_cpu_dev __initdata = {
+	c_vendor:	"AMD",
+	c_ident: 	{ "AuthenticAMD" },
+	c_models: {
+		{ X86_VENDOR_AMD,	4,
+		  {
+			  [3] "486 DX/2",
+			  [7] "486 DX/2-WB",
+			  [8] "486 DX/4", 
+			  [9] "486 DX/4-WB", 
+			  [14] "Am5x86-WT",
+			  [15] "Am5x86-WB" 
+		  }
+		},
+	},
+	c_init:		init_amd,
+	c_identify:	amd_identify,
+	c_size_cache:	amd_size_cache,
+};
+
+int __init amd_init_cpu(void)
+{
+	cpu_devs[X86_VENDOR_AMD] = &amd_cpu_dev;
+	return 0;
+}
+
+//early_arch_initcall(amd_init_cpu);

arch/i386/kernel/cpu/centaur.c

+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <asm/processor.h>
+#include <asm/msr.h>
+#include "cpu.h"
+
+#ifdef CONFIG_X86_OOSTORE
+
+static u32 __init power2(u32 x)
+{
+	u32 s=1;
+	while(s<=x)
+		s<<=1;
+	return s>>=1;
+}
+
+
+/*
+ *	Set up an actual MCR
+ */
+ 
+static void __init centaur_mcr_insert(int reg, u32 base, u32 size, int key)
+{
+	u32 lo, hi;
+	
+	hi = base & ~0xFFF;
+	lo = ~(size-1);		/* Size is a power of 2 so this makes a mask */
+	lo &= ~0xFFF;		/* Remove the ctrl value bits */
+	lo |= key;		/* Attribute we wish to set */
+	wrmsr(reg+MSR_IDT_MCR0, lo, hi);
+	mtrr_centaur_report_mcr(reg, lo, hi);	/* Tell the mtrr driver */
+}
+
+/*
+ *	Figure what we can cover with MCR's
+ *
+ *	Shortcut: We know you can't put 4Gig of RAM on a winchip
+ */
+
+static u32 __init ramtop(void)		/* 16388 */
+{
+	int i;
+	u32 top = 0;
+	u32 clip = 0xFFFFFFFFUL;
+	
+	for (i = 0; i < e820.nr_map; i++) {
+		unsigned long start, end;
+
+		if (e820.map[i].addr > 0xFFFFFFFFUL)
+			continue;
+		/*
+		 *	Don't MCR over reserved space. Ignore the ISA hole
+		 *	we frob around that catastrophy already
+		 */
+		 			
+		if (e820.map[i].type == E820_RESERVED)
+		{
+			if(e820.map[i].addr >= 0x100000UL && e820.map[i].addr < clip)
+				clip = e820.map[i].addr;
+			continue;
+		}
+		start = e820.map[i].addr;
+		end = e820.map[i].addr + e820.map[i].size;
+		if (start >= end)
+			continue;
+		if (end > top)
+			top = end;
+	}
+	/* Everything below 'top' should be RAM except for the ISA hole.
+	   Because of the limited MCR's we want to map NV/ACPI into our
+	   MCR range for gunk in RAM 
+	   
+	   Clip might cause us to MCR insufficient RAM but that is an
+	   acceptable failure mode and should only bite obscure boxes with
+	   a VESA hole at 15Mb
+	   
+	   The second case Clip sometimes kicks in is when the EBDA is marked
+	   as reserved. Again we fail safe with reasonable results
+	*/
+	
+	if(top>clip)
+		top=clip;
+		
+	return top;
+}
+
+/*
+ *	Compute a set of MCR's to give maximum coverage
+ */
+
+static int __init centaur_mcr_compute(int nr, int key)
+{
+	u32 mem = ramtop();
+	u32 root = power2(mem);
+	u32 base = root;
+	u32 top = root;
+	u32 floor = 0;
+	int ct = 0;
+	
+	while(ct<nr)
+	{
+		u32 fspace = 0;
+
+		/*
+		 *	Find the largest block we will fill going upwards
+		 */
+
+		u32 high = power2(mem-top);	
+
+		/*
+		 *	Find the largest block we will fill going downwards
+		 */
+
+		u32 low = base/2;
+
+		/*
+		 *	Don't fill below 1Mb going downwards as there
+		 *	is an ISA hole in the way.
+		 */		
+		 
+		if(base <= 1024*1024)
+			low = 0;
+			
+		/*
+		 *	See how much space we could cover by filling below
+		 *	the ISA hole
+		 */
+		 
+		if(floor == 0)
+			fspace = 512*1024;
+		else if(floor ==512*1024)
+			fspace = 128*1024;
+
+		/* And forget ROM space */
+		
+		/*
+		 *	Now install the largest coverage we get
+		 */
+		 
+		if(fspace > high && fspace > low)
+		{
+			centaur_mcr_insert(ct, floor, fspace, key);
+			floor += fspace;
+		}
+		else if(high > low)
+		{
+			centaur_mcr_insert(ct, top, high, key);
+			top += high;
+		}
+		else if(low > 0)
+		{
+			base -= low;
+			centaur_mcr_insert(ct, base, low, key);
+		}
+		else break;
+		ct++;
+	}
+	/*
+	 *	We loaded ct values. We now need to set the mask. The caller
+	 *	must do this bit.
+	 */
+	 
+	return ct;
+}
+
+static void __init centaur_create_optimal_mcr(void)
+{
+	int i;
+	/*
+	 *	Allocate up to 6 mcrs to mark as much of ram as possible
+	 *	as write combining and weak write ordered.
+	 *
+	 *	To experiment with: Linux never uses stack operations for 
+	 *	mmio spaces so we could globally enable stack operation wc
+	 *
+	 *	Load the registers with type 31 - full write combining, all
+	 *	writes weakly ordered.
+	 */
+	int used = centaur_mcr_compute(6, 31);
+
+	/*
+	 *	Wipe unused MCRs
+	 */
+	 
+	for(i=used;i<8;i++)
+		wrmsr(MSR_IDT_MCR0+i, 0, 0);
+}
+
+static void __init winchip2_create_optimal_mcr(void)
+{
+	u32 lo, hi;
+	int i;
+
+	/*
+	 *	Allocate up to 6 mcrs to mark as much of ram as possible
+	 *	as write combining, weak store ordered.
+	 *
+	 *	Load the registers with type 25
+	 *		8	-	weak write ordering
+	 *		16	-	weak read ordering
+	 *		1	-	write combining
+	 */
+
+	int used = centaur_mcr_compute(6, 25);
+	
+	/*
+	 *	Mark the registers we are using.
+	 */
+	 
+	rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
+	for(i=0;i<used;i++)
+		lo|=1<<(9+i);
+	wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
+	
+	/*
+	 *	Wipe unused MCRs
+	 */
+	 
+	for(i=used;i<8;i++)
+		wrmsr(MSR_IDT_MCR0+i, 0, 0);
+}
+
+/*
+ *	Handle the MCR key on the Winchip 2.
+ */
+
+static void __init winchip2_unprotect_mcr(void)
+{
+	u32 lo, hi;
+	u32 key;
+	
+	rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
+	lo&=~0x1C0;	/* blank bits 8-6 */
+	key = (lo>>17) & 7;
+	lo |= key<<6;	/* replace with unlock key */
+	wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
+}
+
+static void __init winchip2_protect_mcr(void)
+{
+	u32 lo, hi;
+	
+	rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
+	lo&=~0x1C0;	/* blank bits 8-6 */
+	wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
+}
+#endif
+
+static void __init init_centaur(struct cpuinfo_x86 *c)
+{
+	enum {
+		ECX8=1<<1,
+		EIERRINT=1<<2,
+		DPM=1<<3,
+		DMCE=1<<4,
+		DSTPCLK=1<<5,
+		ELINEAR=1<<6,
+		DSMC=1<<7,
+		DTLOCK=1<<8,
+		EDCTLB=1<<8,
+		EMMX=1<<9,
+		DPDC=1<<11,
+		EBRPRED=1<<12,
+		DIC=1<<13,
+		DDC=1<<14,
+		DNA=1<<15,
+		ERETSTK=1<<16,
+		E2MMX=1<<19,
+		EAMD3D=1<<20,
+	};
+
+	char *name;
+	u32  fcr_set=0;
+	u32  fcr_clr=0;
+	u32  lo,hi,newlo;
+	u32  aa,bb,cc,dd;
+
+	/* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
+	   3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
+	clear_bit(0*32+31, c->x86_capability);
+
+	switch (c->x86) {
+
+		case 5:
+			switch(c->x86_model) {
+			case 4:
+				name="C6";
+				fcr_set=ECX8|DSMC|EDCTLB|EMMX|ERETSTK;
+				fcr_clr=DPDC;
+				printk(KERN_NOTICE "Disabling bugged TSC.\n");
+				clear_bit(X86_FEATURE_TSC, c->x86_capability);
+#ifdef CONFIG_X86_OOSTORE
+				centaur_create_optimal_mcr();
+				/* Enable
+					write combining on non-stack, non-string
+					write combining on string, all types
+					weak write ordering 
+					
+				   The C6 original lacks weak read order 
+				   
+				   Note 0x120 is write only on Winchip 1 */
+				   
+				wrmsr(MSR_IDT_MCR_CTRL, 0x01F0001F, 0);
+#endif				
+				break;
+			case 8:
+				switch(c->x86_mask) {
+				default:
+					name="2";
+					break;
+				case 7 ... 9:
+					name="2A";
+					break;
+				case 10 ... 15:
+					name="2B";
+					break;
+				}
+				fcr_set=ECX8|DSMC|DTLOCK|EMMX|EBRPRED|ERETSTK|E2MMX|EAMD3D;
+				fcr_clr=DPDC;
+#ifdef CONFIG_X86_OOSTORE
+				winchip2_unprotect_mcr();
+				winchip2_create_optimal_mcr();
+				rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
+				/* Enable
+					write combining on non-stack, non-string
+					write combining on string, all types
+					weak write ordering 
+				*/
+				lo|=31;				
+				wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
+				winchip2_protect_mcr();
+#endif
+				break;
+			case 9:
+				name="3";
+				fcr_set=ECX8|DSMC|DTLOCK|EMMX|EBRPRED|ERETSTK|E2MMX|EAMD3D;
+				fcr_clr=DPDC;
+#ifdef CONFIG_X86_OOSTORE
+				winchip2_unprotect_mcr();
+				winchip2_create_optimal_mcr();
+				rdmsr(MSR_IDT_MCR_CTRL, lo, hi);
+				/* Enable
+					write combining on non-stack, non-string
+					write combining on string, all types
+					weak write ordering 
+				*/
+				lo|=31;				
+				wrmsr(MSR_IDT_MCR_CTRL, lo, hi);
+				winchip2_protect_mcr();
+#endif
+				break;
+			case 10:
+				name="4";
+				/* no info on the WC4 yet */
+				break;
+			default:
+				name="??";
+			}
+
+			rdmsr(MSR_IDT_FCR1, lo, hi);
+			newlo=(lo|fcr_set) & (~fcr_clr);
+
+			if (newlo!=lo) {
+				printk(KERN_INFO "Centaur FCR was 0x%X now 0x%X\n", lo, newlo );
+				wrmsr(MSR_IDT_FCR1, newlo, hi );
+			} else {
+				printk(KERN_INFO "Centaur FCR is 0x%X\n",lo);
+			}
+			/* Emulate MTRRs using Centaur's MCR. */
+			set_bit(X86_FEATURE_CENTAUR_MCR, c->x86_capability);
+			/* Report CX8 */
+			set_bit(X86_FEATURE_CX8, c->x86_capability);
+			/* Set 3DNow! on Winchip 2 and above. */
+			if (c->x86_model >=8)
+				set_bit(X86_FEATURE_3DNOW, c->x86_capability);
+			/* See if we can find out some more. */
+			if ( cpuid_eax(0x80000000) >= 0x80000005 ) {
+				/* Yes, we can. */
+				cpuid(0x80000005,&aa,&bb,&cc,&dd);
+				/* Add L1 data and code cache sizes. */
+				c->x86_cache_size = (cc>>24)+(dd>>24);
+			}
+			sprintf( c->x86_model_id, "WinChip %s", name );
+			break;
+
+		case 6:
+			switch (c->x86_model) {
+				case 6 ... 8:		/* Cyrix III family */
+					rdmsr (MSR_VIA_FCR, lo, hi);
+					lo |= (1<<1 | 1<<7);	/* Report CX8 & enable PGE */
+					wrmsr (MSR_VIA_FCR, lo, hi);
+
+					set_bit(X86_FEATURE_CX8, c->x86_capability);
+					set_bit(X86_FEATURE_3DNOW, c->x86_capability);
+
+					get_model_name(c);
+					display_cacheinfo(c);
+					break;
+			}
+			break;
+	}
+}
+
+static unsigned int centaur_size_cache(struct cpuinfo_x86 * c, unsigned int size)
+{
+	/* VIA C3 CPUs (670-68F) need further shifting. */
+	if ((c->x86 == 6) && ((c->x86_model == 7) || (c->x86_model == 8)))
+		size >>= 8;
+	return size;
+}
+
+static struct cpu_dev centaur_cpu_dev __initdata = {
+	c_vendor:	"Centaur",
+	c_ident:	{ "CentaurHauls" },
+	c_init:		init_centaur,
+	c_size_cache:	centaur_size_cache,
+};
+
+int __init centaur_init_cpu(void)
+{
+	cpu_devs[X86_VENDOR_CENTAUR] = &centaur_cpu_dev;
+	return 0;
+}
+
+//early_arch_initcall(centaur_init_cpu);

arch/i386/kernel/cpu/changelog

+/*
+ *  Enhanced CPU type detection by Mike Jagdis, Patrick St. Jean
+ *  and Martin Mares, November 1997.
+ *
+ *  Force Cyrix 6x86(MX) and M II processors to report MTRR capability
+ *  and Cyrix "coma bug" recognition by
+ *  Zoltn Bszrmnyi <zboszor@mail.externet.hu> February 1999.
+ * 
+ *  Force Centaur C6 processors to report MTRR capability.
+ *  Bart Hartgers <bart@etpmod.phys.tue.nl>, May 1999.
+ *
+ *  Intel Mobile Pentium II detection fix. Sean Gilley, June 1999.
+ *
+ *  IDT Winchip tweaks, misc clean ups.
+ *  Dave Jones <davej@suse.de>, August 1999
+ *
+ *  Better detection of Centaur/IDT WinChip models.
+ *  Bart Hartgers <bart@etpmod.phys.tue.nl>, August 1999.
+ *
+ *  Cleaned up cache-detection code
+ *  Dave Jones <davej@suse.de>, October 1999
+ *
+ *  Added proper L2 cache detection for Coppermine
+ *  Dragan Stancevic <visitor@valinux.com>, October 1999
+ *
+ *  Added the original array for capability flags but forgot to credit 
+ *  myself :) (~1998) Fixed/cleaned up some cpu_model_info and other stuff
+ *  Jauder Ho <jauderho@carumba.com>, January 2000
+ *
+ *  Detection for Celeron coppermine, identify_cpu() overhauled,
+ *  and a few other clean ups.
+ *  Dave Jones <davej@suse.de>, April 2000
+ *
+ *  Pentium III FXSR, SSE support
+ *  General FPU state handling cleanups
+ *  Gareth Hughes <gareth@valinux.com>, May 2000
+ *
+ *  Added proper Cascades CPU and L2 cache detection for Cascades
+ *  and 8-way type cache happy bunch from Intel:^)
+ *  Dragan Stancevic <visitor@valinux.com>, May 2000 
+ *
+ *  Forward port AMD Duron errata T13 from 2.2.17pre
+ *  Dave Jones <davej@suse.de>, August 2000
+ *
+ *  Forward port lots of fixes/improvements from 2.2.18pre
+ *  Cyrix III, Pentium IV support.
+ *  Dave Jones <davej@suse.de>, October 2000
+ *
+ *  Massive cleanup of CPU detection and bug handling;
+ *  Transmeta CPU detection,
+ *  H. Peter Anvin <hpa@zytor.com>, November 2000
+ *
+ *  VIA C3 Support.
+ *  Dave Jones <davej@suse.de>, March 2001
+ *
+ *  AMD Athlon/Duron/Thunderbird bluesmoke support.
+ *  Dave Jones <davej@suse.de>, April 2001.
+ *
+ *  CacheSize bug workaround updates for AMD, Intel & VIA Cyrix.
+ *  Dave Jones <davej@suse.de>, September, October 2001.
+ *
+ */
+

arch/i386/kernel/cpu/cpu.h

+
+struct cpu_model_info {
+	int vendor;
+	int family;
+	char *model_names[16];
+};
+
+/* attempt to consolidate cpu attributes */
+struct cpu_dev {
+	char	* c_vendor;
+
+	/* some have two possibilities for cpuid string */
+	char	* c_ident[2];	
+
+	struct		cpu_model_info c_models[4];
+
+	void		(*c_init)(struct cpuinfo_x86 * c);
+	void		(*c_identify)(struct cpuinfo_x86 * c);
+	unsigned int	(*c_size_cache)(struct cpuinfo_x86 * c, unsigned int size);
+};
+
+extern struct cpu_dev * cpu_devs [X86_VENDOR_NUM];
+
+extern int get_model_name(struct cpuinfo_x86 *c);
+extern void display_cacheinfo(struct cpuinfo_x86 *c);
+
+extern void generic_identify(struct cpuinfo_x86 * c);
+extern int have_cpuid_p(void);

arch/i386/kernel/cpu/cyrix.c

+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/pci_ids.h>
+
+#include <asm/dma.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+#include "cpu.h"
+
+/*
+ * Read NSC/Cyrix DEVID registers (DIR) to get more detailed info. about the CPU
+ */
+void __init do_cyrix_devid(unsigned char *dir0, unsigned char *dir1)
+{
+	unsigned char ccr2, ccr3;
+	unsigned long flags;
+	
+	/* we test for DEVID by checking whether CCR3 is writable */
+	local_irq_save(flags);
+	ccr3 = getCx86(CX86_CCR3);
+	setCx86(CX86_CCR3, ccr3 ^ 0x80);
+	getCx86(0xc0);   /* dummy to change bus */
+
+	if (getCx86(CX86_CCR3) == ccr3) {       /* no DEVID regs. */
+		ccr2 = getCx86(CX86_CCR2);
+		setCx86(CX86_CCR2, ccr2 ^ 0x04);
+		getCx86(0xc0);  /* dummy */
+
+		if (getCx86(CX86_CCR2) == ccr2) /* old Cx486SLC/DLC */
+			*dir0 = 0xfd;
+		else {                          /* Cx486S A step */
+			setCx86(CX86_CCR2, ccr2);
+			*dir0 = 0xfe;
+		}
+	}
+	else {
+		setCx86(CX86_CCR3, ccr3);  /* restore CCR3 */
+
+		/* read DIR0 and DIR1 CPU registers */
+		*dir0 = getCx86(CX86_DIR0);
+		*dir1 = getCx86(CX86_DIR1);
+	}
+	local_irq_restore(flags);
+}
+
+/*
+ * Cx86_dir0_msb is a HACK needed by check_cx686_cpuid/slop in bugs.h in
+ * order to identify the Cyrix CPU model after we're out of setup.c
+ *
+ * Actually since bugs.h doesnt even reference this perhaps someone should
+ * fix the documentation ???
+ */
+static unsigned char Cx86_dir0_msb __initdata = 0;
+
+static char Cx86_model[][9] __initdata = {
+	"Cx486", "Cx486", "5x86 ", "6x86", "MediaGX ", "6x86MX ",
+	"M II ", "Unknown"
+};
+static char Cx486_name[][5] __initdata = {
+	"SLC", "DLC", "SLC2", "DLC2", "SRx", "DRx",
+	"SRx2", "DRx2"
+};
+static char Cx486S_name[][4] __initdata = {
+	"S", "S2", "Se", "S2e"
+};
+static char Cx486D_name[][4] __initdata = {
+	"DX", "DX2", "?", "?", "?", "DX4"
+};
+static char Cx86_cb[] __initdata = "?.5x Core/Bus Clock";
+static char cyrix_model_mult1[] __initdata = "12??43";
+static char cyrix_model_mult2[] __initdata = "12233445";
+
+/*
+ * Reset the slow-loop (SLOP) bit on the 686(L) which is set by some old
+ * BIOSes for compatability with DOS games.  This makes the udelay loop
+ * work correctly, and improves performance.
+ *
+ * FIXME: our newer udelay uses the tsc. We dont need to frob with SLOP
+ */
+
+extern void calibrate_delay(void) __init;
+
+static void __init check_cx686_slop(struct cpuinfo_x86 *c)
+{
+	unsigned long flags;
+	
+	if (Cx86_dir0_msb == 3) {
+		unsigned char ccr3, ccr5;
+
+		local_irq_save(flags);
+		ccr3 = getCx86(CX86_CCR3);
+		setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN  */
+		ccr5 = getCx86(CX86_CCR5);
+		if (ccr5 & 2)
+			setCx86(CX86_CCR5, ccr5 & 0xfd);  /* reset SLOP */
+		setCx86(CX86_CCR3, ccr3);                 /* disable MAPEN */
+		local_irq_restore(flags);
+
+		if (ccr5 & 2) { /* possible wrong calibration done */
+			printk(KERN_INFO "Recalibrating delay loop with SLOP bit reset\n");
+			calibrate_delay();
+			c->loops_per_jiffy = loops_per_jiffy;
+		}
+	}
+}
+
+static void __init init_cyrix(struct cpuinfo_x86 *c)
+{
+	unsigned char dir0, dir0_msn, dir0_lsn, dir1 = 0;
+	char *buf = c->x86_model_id;
+	const char *p = NULL;
+
+	/* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
+	   3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway */
+	clear_bit(0*32+31, c->x86_capability);
+
+	/* Cyrix used bit 24 in extended (AMD) CPUID for Cyrix MMX extensions */
+	if ( test_bit(1*32+24, c->x86_capability) ) {
+		clear_bit(1*32+24, c->x86_capability);
+		set_bit(X86_FEATURE_CXMMX, c->x86_capability);
+	}
+
+	do_cyrix_devid(&dir0, &dir1);
+
+	check_cx686_slop(c);
+
+	Cx86_dir0_msb = dir0_msn = dir0 >> 4; /* identifies CPU "family"   */
+	dir0_lsn = dir0 & 0xf;                /* model or clock multiplier */
+
+	/* common case step number/rev -- exceptions handled below */
+	c->x86_model = (dir1 >> 4) + 1;
+	c->x86_mask = dir1 & 0xf;
+
+	/* Now cook; the original recipe is by Channing Corn, from Cyrix.
+	 * We do the same thing for each generation: we work out
+	 * the model, multiplier and stepping.  Black magic included,
+	 * to make the silicon step/rev numbers match the printed ones.
+	 */
+	 
+	switch (dir0_msn) {
+		unsigned char tmp;
+
+	case 0: /* Cx486SLC/DLC/SRx/DRx */
+		p = Cx486_name[dir0_lsn & 7];
+		break;
+
+	case 1: /* Cx486S/DX/DX2/DX4 */
+		p = (dir0_lsn & 8) ? Cx486D_name[dir0_lsn & 5]
+			: Cx486S_name[dir0_lsn & 3];
+		break;
+
+	case 2: /* 5x86 */
+		Cx86_cb[2] = cyrix_model_mult1[dir0_lsn & 5];
+		p = Cx86_cb+2;
+		break;
+
+	case 3: /* 6x86/6x86L */
+		Cx86_cb[1] = ' ';
+		Cx86_cb[2] = cyrix_model_mult1[dir0_lsn & 5];
+		if (dir1 > 0x21) { /* 686L */
+			Cx86_cb[0] = 'L';
+			p = Cx86_cb;
+			(c->x86_model)++;
+		} else             /* 686 */
+			p = Cx86_cb+1;
+		/* Emulate MTRRs using Cyrix's ARRs. */
+		set_bit(X86_FEATURE_CYRIX_ARR, c->x86_capability);
+		/* 6x86's contain this bug */
+		c->coma_bug = 1;
+		break;
+
+	case 4: /* MediaGX/GXm */
+#ifdef CONFIG_PCI
+		/* It isn't really a PCI quirk directly, but the cure is the
+		   same. The MediaGX has deep magic SMM stuff that handles the
+		   SB emulation. It thows away the fifo on disable_dma() which
+		   is wrong and ruins the audio. 
+
+		   Bug2: VSA1 has a wrap bug so that using maximum sized DMA 
+		   causes bad things. According to NatSemi VSA2 has another
+		   bug to do with 'hlt'. I've not seen any boards using VSA2
+		   and X doesn't seem to support it either so who cares 8).
+		   VSA1 we work around however.
+		*/
+
+		printk(KERN_INFO "Working around Cyrix MediaGX virtual DMA bugs.\n");
+		isa_dma_bridge_buggy = 2;
+#endif		
+		c->x86_cache_size=16;	/* Yep 16K integrated cache thats it */
+
+		/* GXm supports extended cpuid levels 'ala' AMD */
+		if (c->cpuid_level == 2) {
+			/* Enable Natsemi MMX extensions */
+			setCx86(CX86_CCR7, getCx86(CX86_CCR7) | 1);
+
+			get_model_name(c);  /* get CPU marketing name */
+			/*
+			 *  The 5510/5520 companion chips have a funky PIT
+			 *  that breaks the TSC synchronizing, so turn it off
+			 */
+			if (pci_find_device(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510, NULL) ||
+				pci_find_device(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520, NULL))
+				clear_bit(X86_FEATURE_TSC, c->x86_capability);
+			return;
+		}
+		else {  /* MediaGX */
+			Cx86_cb[2] = (dir0_lsn & 1) ? '3' : '4';
+			p = Cx86_cb+2;
+			c->x86_model = (dir1 & 0x20) ? 1 : 2;
+#ifndef CONFIG_CS5520
+			clear_bit(X86_FEATURE_TSC, c->x86_capability);
+#endif
+		}
+		break;
+
+        case 5: /* 6x86MX/M II */
+		if (dir1 > 7)
+		{
+			dir0_msn++;  /* M II */
+			/* Enable MMX extensions (App note 108) */
+			setCx86(CX86_CCR7, getCx86(CX86_CCR7)|1);
+		}
+		else
+		{
+			c->coma_bug = 1;      /* 6x86MX, it has the bug. */
+		}
+		tmp = (!(dir0_lsn & 7) || dir0_lsn & 1) ? 2 : 0;
+		Cx86_cb[tmp] = cyrix_model_mult2[dir0_lsn & 7];
+		p = Cx86_cb+tmp;
+        	if (((dir1 & 0x0f) > 4) || ((dir1 & 0xf0) == 0x20))
+			(c->x86_model)++;
+		/* Emulate MTRRs using Cyrix's ARRs. */
+		set_bit(X86_FEATURE_CYRIX_ARR, c->x86_capability);
+		break;
+
+	case 0xf:  /* Cyrix 486 without DEVID registers */
+		switch (dir0_lsn) {
+		case 0xd:  /* either a 486SLC or DLC w/o DEVID */
+			dir0_msn = 0;
+			p = Cx486_name[(c->hard_math) ? 1 : 0];
+			break;
+
+		case 0xe:  /* a 486S A step */
+			dir0_msn = 0;
+			p = Cx486S_name[0];
+			break;
+		}
+		break;
+
+	default:  /* unknown (shouldn't happen, we know everyone ;-) */
+		dir0_msn = 7;
+		break;
+	}
+	strcpy(buf, Cx86_model[dir0_msn & 7]);
+	if (p) strcat(buf, p);
+	return;
+}
+
+/*
+ * Cyrix CPUs without cpuid or with cpuid not yet enabled can be detected
+ * by the fact that they preserve the flags across the division of 5/2.
+ * PII and PPro exhibit this behavior too, but they have cpuid available.
+ */
+ 
+/*
+ * Perform the Cyrix 5/2 test. A Cyrix won't change
+ * the flags, while other 486 chips will.
+ */
+static inline int test_cyrix_52div(void)
+{
+	unsigned int test;
+
+	__asm__ __volatile__(
+	     "sahf\n\t"		/* clear flags (%eax = 0x0005) */
+	     "div %b2\n\t"	/* divide 5 by 2 */
+	     "lahf"		/* store flags into %ah */
+	     : "=a" (test)
+	     : "0" (5), "q" (2)
+	     : "cc");
+
+	/* AH is 0x02 on Cyrix after the divide.. */
+	return (unsigned char) (test >> 8) == 0x02;
+}
+
+static void cyrix_identify(struct cpuinfo_x86 * c)
+{
+	/* Detect Cyrix with disabled CPUID */
+	if ( c->x86 == 4 && test_cyrix_52div() ) {
+		unsigned char dir0, dir1;
+		
+		strcpy(c->x86_vendor_id, "CyrixInstead");
+	        c->x86_vendor = X86_VENDOR_CYRIX;
+	        
+	        /* Actually enable cpuid on the older cyrix */
+	    
+	    	/* Retrieve CPU revisions */
+	    	
+		do_cyrix_devid(&dir0, &dir1);
+
+		dir0>>=4;		
+		
+		/* Check it is an affected model */
+		
+   	        if (dir0 == 5 || dir0 == 3)
+   	        {
+			unsigned char ccr3, ccr4;
+			unsigned long flags;
+			printk(KERN_INFO "Enabling CPUID on Cyrix processor.\n");
+			local_irq_save(flags);
+			ccr3 = getCx86(CX86_CCR3);
+			setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN  */
+			ccr4 = getCx86(CX86_CCR4);
+			setCx86(CX86_CCR4, ccr4 | 0x80);          /* enable cpuid  */
+			setCx86(CX86_CCR3, ccr3);                 /* disable MAPEN */
+			local_irq_restore(flags);
+		}
+	}
+	generic_identify(c);
+}
+
+static struct cpu_dev cyrix_cpu_dev __initdata = {
+	c_vendor:	"Cyrix",
+	c_ident: 	{ "CyrixInstead" },
+	c_init:		init_cyrix,
+	c_identify:	cyrix_identify,
+};
+
+int __init cyrix_init_cpu(void)
+{
+	cpu_devs[X86_VENDOR_CYRIX] = &cyrix_cpu_dev;
+	return 0;
+}
+
+//early_arch_initcall(cyrix_init_cpu);
+
+static struct cpu_dev nsc_cpu_dev __initdata = {
+	c_vendor:	"NSC",
+	c_ident: 	{ "Geode by NSC" },
+	c_init:		init_cyrix,
+	c_identify:	generic_identify,
+};
+
+int __init nsc_init_cpu(void)
+{
+	cpu_devs[X86_VENDOR_NSC] = &nsc_cpu_dev;
+	return 0;
+}
+
+//early_arch_initcall(nsc_init_cpu);

arch/i386/kernel/cpu/intel.c

+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/bitops.h>
+#include <linux/smp.h>
+#include <asm/processor.h>
+#include <asm/thread_info.h>
+#include <asm/msr.h>
+
+#include "cpu.h"
+
+static int disable_x86_serial_nr __initdata = 1;
+static int disable_P4_HT __initdata = 0;
+extern int trap_init_f00f_bug(void);
+
+/*
+ *	Early probe support logic for ppro memory erratum #50
+ *
+ *	This is called before we do cpu ident work
+ */
+ 
+int __init ppro_with_ram_bug(void)
+{
+	char vendor_id[16];
+	int ident;
+
+	/* Must have CPUID */
+	if(!have_cpuid_p())
+		return 0;
+	if(cpuid_eax(0)<1)
+		return 0;
+	
+	/* Must be Intel */
+	cpuid(0, &ident, 
+		(int *)&vendor_id[0],
+		(int *)&vendor_id[8],
+		(int *)&vendor_id[4]);
+	
+	if(memcmp(vendor_id, "IntelInside", 12))
+		return 0;
+	
+	ident = cpuid_eax(1);
+
+	/* Model 6 */
+
+	if(((ident>>8)&15)!=6)
+		return 0;
+	
+	/* Pentium Pro */
+
+	if(((ident>>4)&15)!=1)
+		return 0;
+	
+	if((ident&15) < 8)
+	{
+		printk(KERN_INFO "Pentium Pro with Errata#50 detected. Taking evasive action.\n");
+		return 1;
+	}
+	printk(KERN_INFO "Your Pentium Pro seems ok.\n");
+	return 0;
+}
+	
+static void __init squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
+{
+	if( test_bit(X86_FEATURE_PN, c->x86_capability) &&
+	    disable_x86_serial_nr ) {
+		/* Disable processor serial number */
+		unsigned long lo,hi;
+		rdmsr(MSR_IA32_BBL_CR_CTL,lo,hi);
+		lo |= 0x200000;
+		wrmsr(MSR_IA32_BBL_CR_CTL,lo,hi);
+		printk(KERN_NOTICE "CPU serial number disabled.\n");
+		clear_bit(X86_FEATURE_PN, c->x86_capability);
+
+		/* Disabling the serial number may affect the cpuid level */
+		c->cpuid_level = cpuid_eax(0);
+	}
+}
+
+static int __init x86_serial_nr_setup(char *s)
+{
+	disable_x86_serial_nr = 0;
+	return 1;
+}
+__setup("serialnumber", x86_serial_nr_setup);
+
+static int __init P4_disable_ht(char *s)
+{
+	disable_P4_HT = 1;
+	return 1;
+}
+__setup("noht", P4_disable_ht);
+
+
+static void __init init_intel(struct cpuinfo_x86 *c)
+{
+	char *p = NULL;
+	unsigned int l1i = 0, l1d = 0, l2 = 0, l3 = 0; /* Cache sizes */
+
+#ifdef CONFIG_X86_F00F_BUG
+	/*
+	 * All current models of Pentium and Pentium with MMX technology CPUs
+	 * have the F0 0F bug, which lets nonpriviledged users lock up the system.
+	 * Note that the workaround only should be initialized once...
+	 */
+	c->f00f_bug = 0;
+	if ( c->x86 == 5 ) {
+		static int f00f_workaround_enabled = 0;
+
+		c->f00f_bug = 1;
+		if ( !f00f_workaround_enabled ) {
+			trap_init_f00f_bug();
+			printk(KERN_NOTICE "Intel Pentium with F0 0F bug - workaround enabled.\n");
+			f00f_workaround_enabled = 1;
+		}
+	}
+#endif
+
+
+	if (c->cpuid_level > 1) {
+		/* supports eax=2  call */
+		int i, j, n;
+		int regs[4];
+		unsigned char *dp = (unsigned char *)regs;
+
+		/* Number of times to iterate */
+		n = cpuid_eax(2) & 0xFF;
+
+		for ( i = 0 ; i < n ; i++ ) {
+			cpuid(2, &regs[0], &regs[1], &regs[2], &regs[3]);
+			
+			/* If bit 31 is set, this is an unknown format */
+			for ( j = 0 ; j < 3 ; j++ ) {
+				if ( regs[j] < 0 ) regs[j] = 0;
+			}
+
+			/* Byte 0 is level count, not a descriptor */
+			for ( j = 1 ; j < 16 ; j++ ) {
+				unsigned char des = dp[j];
+				unsigned char dl, dh;
+				unsigned int cs;
+
+				dh = des >> 4;
+				dl = des & 0x0F;
+
+				/* Black magic... */
+
+				switch ( dh )
+				{
+				case 0:
+					switch ( dl ) {
+					case 6:
+						/* L1 I cache */
+						l1i += 8;
+						break;
+					case 8:
+						/* L1 I cache */
+						l1i += 16;
+						break;
+					case 10:
+						/* L1 D cache */
+						l1d += 8;
+						break;
+					case 12:
+						/* L1 D cache */
+						l1d += 16;
+						break;
+					default:;
+						/* TLB, or unknown */
+					}
+					break;
+				case 2:
+					if ( dl ) {
+						/* L3 cache */
+						cs = (dl-1) << 9;
+						l3 += cs;
+					}
+					break;
+				case 4:
+					if ( c->x86 > 6 && dl ) {
+						/* P4 family */
+						/* L3 cache */
+						cs = 128 << (dl-1);
+						l3 += cs;
+						break;
+					}
+					/* else same as 8 - fall through */
+				case 8:
+					if ( dl ) {
+						/* L2 cache */
+						cs = 128 << (dl-1);
+						l2 += cs;
+					}
+					break;
+				case 6:
+					if (dl > 5) {
+						/* L1 D cache */
+						cs = 8<<(dl-6);
+						l1d += cs;
+					}
+					break;
+				case 7:
+					if ( dl >= 8 ) 
+					{
+						/* L2 cache */
+						cs = 64<<(dl-8);
+						l2 += cs;
+					} else {
+						/* L0 I cache, count as L1 */
+						cs = dl ? (16 << (dl-1)) : 12;
+						l1i += cs;
+					}
+					break;
+				default:
+					/* TLB, or something else we don't know about */
+					break;
+				}
+			}
+		}
+		if ( l1i || l1d )
+			printk(KERN_INFO "CPU: L1 I cache: %dK, L1 D cache: %dK\n",
+			      l1i, l1d);
+		if ( l2 )
+			printk(KERN_INFO "CPU: L2 cache: %dK\n", l2);
+		if ( l3 )
+			printk(KERN_INFO "CPU: L3 cache: %dK\n", l3);
+
+		/*
+		 * This assumes the L3 cache is shared; it typically lives in
+		 * the northbridge.  The L1 caches are included by the L2
+		 * cache, and so should not be included for the purpose of
+		 * SMP switching weights.
+		 */
+		c->x86_cache_size = l2 ? l2 : (l1i+l1d);
+	}
+
+	/* SEP CPUID bug: Pentium Pro reports SEP but doesn't have it */
+	if ( c->x86 == 6 && c->x86_model < 3 && c->x86_mask < 3 )
+		clear_bit(X86_FEATURE_SEP, c->x86_capability);
+	
+	/* Names for the Pentium II/Celeron processors 
+	   detectable only by also checking the cache size.
+	   Dixon is NOT a Celeron. */
+	if (c->x86 == 6) {
+		switch (c->x86_model) {
+		case 5:
+			if (l2 == 0)
+				p = "Celeron (Covington)";
+			if (l2 == 256)
+				p = "Mobile Pentium II (Dixon)";
+			break;
+			
+		case 6:
+			if (l2 == 128)
+				p = "Celeron (Mendocino)";
+			break;
+			
+		case 8:
+			if (l2 == 128)
+				p = "Celeron (Coppermine)";
+			break;
+		}
+	}
+
+	if ( p )
+		strcpy(c->x86_model_id, p);
+	
+#ifdef CONFIG_SMP
+	if (test_bit(X86_FEATURE_HT, c->x86_capability) && !disable_P4_HT) {
+		extern	int phys_proc_id[NR_CPUS];
+		
+		u32 	eax, ebx, ecx, edx;
+		int 	index_lsb, index_msb, tmp;
+		int	initial_apic_id;
+		int 	cpu = smp_processor_id();
+
+		cpuid(1, &eax, &ebx, &ecx, &edx);
+		smp_num_siblings = (ebx & 0xff0000) >> 16;
+
+		if (smp_num_siblings == 1) {
+			printk(KERN_INFO  "CPU: Hyper-Threading is disabled\n");
+		} else if (smp_num_siblings > 1 ) {
+			index_lsb = 0;
+			index_msb = 31;
+			/*
+			 * At this point we only support two siblings per
+			 * processor package.
+			 */
+#define NR_SIBLINGS	2
+			if (smp_num_siblings != NR_SIBLINGS) {
+				printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings);
+				smp_num_siblings = 1;
+				goto too_many_siblings;
+			}
+			tmp = smp_num_siblings;
+			while ((tmp & 1) == 0) {
+				tmp >>=1 ;
+				index_lsb++;
+			}
+			tmp = smp_num_siblings;
+			while ((tmp & 0x80000000 ) == 0) {
+				tmp <<=1 ;
+				index_msb--;
+			}
+			if (index_lsb != index_msb )
+				index_msb++;
+			initial_apic_id = ebx >> 24 & 0xff;
+			phys_proc_id[cpu] = initial_apic_id >> index_msb;
+
+			printk(KERN_INFO  "CPU: Physical Processor ID: %d\n",
+                               phys_proc_id[cpu]);
+		}
+
+	}
+too_many_siblings:
+
+	if (disable_P4_HT)
+		clear_bit(X86_FEATURE_HT, c->x86_capability);
+#endif
+
+	/* Disable the PN if appropriate */
+	squash_the_stupid_serial_number(c);
+}
+
+static unsigned int intel_size_cache(struct cpuinfo_x86 * c, unsigned int size)
+{
+	/* Intel PIII Tualatin. This comes in two flavours.
+	 * One has 256kb of cache, the other 512. We have no way
+	 * to determine which, so we use a boottime override
+	 * for the 512kb model, and assume 256 otherwise.
+	 */
+	if ((c->x86 == 6) && (c->x86_model == 11) && (size == 0))
+		size = 256;
+	return size;
+}
+
+static struct cpu_dev intel_cpu_dev __initdata = {
+	c_vendor:	"Intel",
+	c_ident: 	{ "GenuineIntel" },
+	c_models: {
+		{ X86_VENDOR_INTEL,	4,
+		  { 
+			  [0] "486 DX-25/33", 
+			  [1] "486 DX-50", 
+			  [2] "486 SX", 
+			  [3] "486 DX/2", 
+			  [4] "486 SL", 
+			  [5] "486 SX/2", 
+			  [7] "486 DX/2-WB", 
+			  [8] "486 DX/4", 
+			  [9] "486 DX/4-WB"
+		  }
+		},
+		{ X86_VENDOR_INTEL,	5,
+		  { 
+			  [0] "Pentium 60/66 A-step", 
+			  [1] "Pentium 60/66", 
+			  [2] "Pentium 75 - 200",
+			  [3] "OverDrive PODP5V83", 
+			  [4] "Pentium MMX",
+			  [7] "Mobile Pentium 75 - 200", 
+			  [8] "Mobile Pentium MMX"
+		  }
+		},
+	},
+	c_init:		init_intel,
+	c_identify:	generic_identify,
+	c_size_cache:	intel_size_cache,
+};
+
+__init int intel_cpu_init(void)
+{
+	cpu_devs[X86_VENDOR_INTEL] = &intel_cpu_dev;
+	return 0;
+}
+
+// arch_initcall(intel_cpu_init);
+

arch/i386/kernel/cpu/nexgen.c

+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <asm/processor.h>
+
+#include "cpu.h"
+
+/*
+ *	Detect a NexGen CPU running without BIOS hypercode new enough
+ *	to have CPUID. (Thanks to Herbert Oppmann)
+ */
+ 
+static int __init deep_magic_nexgen_probe(void)
+{
+	int ret;
+	
+	__asm__ __volatile__ (
+		"	movw	$0x5555, %%ax\n"
+		"	xorw	%%dx,%%dx\n"
+		"	movw	$2, %%cx\n"
+		"	divw	%%cx\n"
+		"	movl	$0, %%eax\n"
+		"	jnz	1f\n"
+		"	movl	$1, %%eax\n"
+		"1:\n" 
+		: "=a" (ret) : : "cx", "dx" );
+	return  ret;
+}
+
+static void __init init_nexgen(struct cpuinfo_x86 * c)
+{
+	c->x86_cache_size = 256; /* A few had 1 MB... */
+}
+
+static void nexgen_identify(struct cpuinfo_x86 * c)
+{
+	/* Detect NexGen with old hypercode */
+	if ( deep_magic_nexgen_probe() ) {
+		strcpy(c->x86_vendor_id, "NexGenDriven");
+	}
+	generic_identify(c);
+}
+
+static struct cpu_dev nexgen_cpu_dev __initdata = {
+	c_vendor:	"Nexgen",
+	c_ident:	{ "NexGenDriven" },
+	c_models: {
+		{ X86_VENDOR_NEXGEN,5, { [1] "Nx586" } },
+	},
+	c_init:		init_nexgen,
+	c_identify:	nexgen_identify,
+};
+
+int __init nexgen_init_cpu(void)
+{
+	cpu_devs[X86_VENDOR_NEXGEN] = &nexgen_cpu_dev;
+	return 0;
+}
+
+//early_arch_initcall(nexgen_init_cpu);

arch/i386/kernel/cpu/proc.c

+#include <linux/smp.h>
+#include <linux/timex.h>
+#include <linux/string.h>
+#include <asm/semaphore.h>
+#include <linux/seq_file.h>
+
+/*
+ *	Get CPU information for use by the procfs.
+ */
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+	/* 
+	 * These flag bits must match the definitions in <asm/cpufeature.h>.
+	 * NULL means this bit is undefined or reserved; either way it doesn't
+	 * have meaning as far as Linux is concerned.  Note that it's important
+	 * to realize there is a difference between this table and CPUID -- if
+	 * applications want to get the raw CPUID data, they should access
+	 * /dev/cpu/<cpu_nr>/cpuid instead.
+	 */
+	static char *x86_cap_flags[] = {
+		/* Intel-defined */
+	        "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
+	        "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
+	        "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
+	        "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", NULL,
+
+		/* AMD-defined */
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, "mp", NULL, NULL, "mmxext", NULL,
+		NULL, NULL, NULL, NULL, NULL, "lm", "3dnowext", "3dnow",
+
+		/* Transmeta-defined */
+		"recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+
+		/* Other (Linux-defined) */
+		"cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+	};
+	struct cpuinfo_x86 *c = v;
+	int i, n = c - cpu_data;
+	int fpu_exception;
+
+#ifdef CONFIG_SMP
+	if (!(cpu_online_map & (1<<n)))
+		return 0;
+#endif
+	seq_printf(m, "processor\t: %d\n"
+		"vendor_id\t: %s\n"
+		"cpu family\t: %d\n"
+		"model\t\t: %d\n"
+		"model name\t: %s\n",
+		n,
+		c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
+		c->x86,
+		c->x86_model,
+		c->x86_model_id[0] ? c->x86_model_id : "unknown");
+
+	if (c->x86_mask || c->cpuid_level >= 0)
+		seq_printf(m, "stepping\t: %d\n", c->x86_mask);
+	else
+		seq_printf(m, "stepping\t: unknown\n");
+
+	if ( test_bit(X86_FEATURE_TSC, c->x86_capability) ) {
+		seq_printf(m, "cpu MHz\t\t: %lu.%03lu\n",
+			cpu_khz / 1000, (cpu_khz % 1000));
+	}
+
+	/* Cache size */
+	if (c->x86_cache_size >= 0)
+		seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
+	
+	/* We use exception 16 if we have hardware math and we've either seen it or the CPU claims it is internal */
+	fpu_exception = c->hard_math && (ignore_irq13 || cpu_has_fpu);
+	seq_printf(m, "fdiv_bug\t: %s\n"
+			"hlt_bug\t\t: %s\n"
+			"f00f_bug\t: %s\n"
+			"coma_bug\t: %s\n"
+			"fpu\t\t: %s\n"
+			"fpu_exception\t: %s\n"
+			"cpuid level\t: %d\n"
+			"wp\t\t: %s\n"
+			"flags\t\t:",
+		     c->fdiv_bug ? "yes" : "no",
+		     c->hlt_works_ok ? "no" : "yes",
+		     c->f00f_bug ? "yes" : "no",
+		     c->coma_bug ? "yes" : "no",
+		     c->hard_math ? "yes" : "no",
+		     fpu_exception ? "yes" : "no",
+		     c->cpuid_level,
+		     c->wp_works_ok ? "yes" : "no");
+
+	for ( i = 0 ; i < 32*NCAPINTS ; i++ )
+		if ( test_bit(i, c->x86_capability) &&
+		     x86_cap_flags[i] != NULL )
+			seq_printf(m, " %s", x86_cap_flags[i]);
+
+	seq_printf(m, "\nbogomips\t: %lu.%02lu\n\n",
+		     c->loops_per_jiffy/(500000/HZ),
+		     (c->loops_per_jiffy/(5000/HZ)) % 100);
+	return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < NR_CPUS ? cpu_data + *pos : NULL;
+}
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return c_start(m, pos);
+}
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+struct seq_operations cpuinfo_op = {
+	start:	c_start,
+	next:	c_next,
+	stop:	c_stop,
+	show:	show_cpuinfo,
+};

arch/i386/kernel/cpu/rise.c

+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <asm/processor.h>
+
+#include "cpu.h"
+
+static void __init init_rise(struct cpuinfo_x86 *c)
+{
+	printk("CPU: Rise iDragon");
+	if (c->x86_model > 2)
+		printk(" II");
+	printk("\n");
+
+	/* Unhide possibly hidden capability flags
+	   The mp6 iDragon family don't have MSRs.
+	   We switch on extra features with this cpuid weirdness: */
+	__asm__ (
+		"movl $0x6363452a, %%eax\n\t"
+		"movl $0x3231206c, %%ecx\n\t"
+		"movl $0x2a32313a, %%edx\n\t"
+		"cpuid\n\t"
+		"movl $0x63634523, %%eax\n\t"
+		"movl $0x32315f6c, %%ecx\n\t"
+		"movl $0x2333313a, %%edx\n\t"
+		"cpuid\n\t" : : : "eax", "ebx", "ecx", "edx"
+	);
+	set_bit(X86_FEATURE_CX8, c->x86_capability);
+}
+
+static struct cpu_dev rise_cpu_dev __initdata = {
+	c_vendor:	"Rise",
+	c_ident:	{ "RiseRiseRise" },
+	c_models: {
+		{ X86_VENDOR_RISE,	5,
+		  { 
+			  [0] "iDragon", 
+			  [2] "iDragon", 
+			  [8] "iDragon II", 
+			  [9] "iDragon II"
+		  }
+		},
+	},
+	c_init:		init_rise,
+};
+
+int __init rise_init_cpu(void)
+{
+	cpu_devs[X86_VENDOR_RISE] = &rise_cpu_dev;
+	return 0;
+}
+
+//early_arch_initcall(rise_init_cpu);

arch/i386/kernel/cpu/transmeta.c

+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/processor.h>
+#include <asm/msr.h>
+#include "cpu.h"
+
+static void __init init_transmeta(struct cpuinfo_x86 *c)
+{
+	unsigned int cap_mask, uk, max, dummy;
+	unsigned int cms_rev1, cms_rev2;
+	unsigned int cpu_rev, cpu_freq, cpu_flags;
+	char cpu_info[65];
+
+	get_model_name(c);	/* Same as AMD/Cyrix */
+	display_cacheinfo(c);
+
+	/* Print CMS and CPU revision */
+	max = cpuid_eax(0x80860000);
+	if ( max >= 0x80860001 ) {
+		cpuid(0x80860001, &dummy, &cpu_rev, &cpu_freq, &cpu_flags); 
+		printk(KERN_INFO "CPU: Processor revision %u.%u.%u.%u, %u MHz\n",
+		       (cpu_rev >> 24) & 0xff,
+		       (cpu_rev >> 16) & 0xff,
+		       (cpu_rev >> 8) & 0xff,
+		       cpu_rev & 0xff,
+		       cpu_freq);
+	}
+	if ( max >= 0x80860002 ) {
+		cpuid(0x80860002, &dummy, &cms_rev1, &cms_rev2, &dummy);
+		printk(KERN_INFO "CPU: Code Morphing Software revision %u.%u.%u-%u-%u\n",
+		       (cms_rev1 >> 24) & 0xff,
+		       (cms_rev1 >> 16) & 0xff,
+		       (cms_rev1 >> 8) & 0xff,
+		       cms_rev1 & 0xff,
+		       cms_rev2);
+	}
+	if ( max >= 0x80860006 ) {
+		cpuid(0x80860003,
+		      (void *)&cpu_info[0],
+		      (void *)&cpu_info[4],
+		      (void *)&cpu_info[8],
+		      (void *)&cpu_info[12]);
+		cpuid(0x80860004,
+		      (void *)&cpu_info[16],
+		      (void *)&cpu_info[20],
+		      (void *)&cpu_info[24],
+		      (void *)&cpu_info[28]);
+		cpuid(0x80860005,
+		      (void *)&cpu_info[32],
+		      (void *)&cpu_info[36],
+		      (void *)&cpu_info[40],
+		      (void *)&cpu_info[44]);
+		cpuid(0x80860006,
+		      (void *)&cpu_info[48],
+		      (void *)&cpu_info[52],
+		      (void *)&cpu_info[56],
+		      (void *)&cpu_info[60]);
+		cpu_info[64] = '\0';
+		printk(KERN_INFO "CPU: %s\n", cpu_info);
+	}
+
+	/* Unhide possibly hidden capability flags */
+	rdmsr(0x80860004, cap_mask, uk);
+	wrmsr(0x80860004, ~0, uk);
+	c->x86_capability[0] = cpuid_edx(0x00000001);
+	wrmsr(0x80860004, cap_mask, uk);
+}
+
+static void transmeta_identify(struct cpuinfo_x86 * c)
+{
+	u32 xlvl;
+	generic_identify(c);
+
+	/* Transmeta-defined flags: level 0x80860001 */
+	xlvl = cpuid_eax(0x80860000);
+	if ( (xlvl & 0xffff0000) == 0x80860000 ) {
+		if (  xlvl >= 0x80860001 )
+			c->x86_capability[2] = cpuid_edx(0x80860001);
+	}
+}
+
+static struct cpu_dev transmeta_cpu_dev __initdata = {
+	c_vendor:	"Transmeta",
+	c_ident:	{ "GenuineTMx86", "TransmetaCPU" },
+	c_init:		init_transmeta,
+	c_identify:	transmeta_identify,
+};
+
+int __init transmeta_init_cpu(void)
+{
+	cpu_devs[X86_VENDOR_TRANSMETA] = &transmeta_cpu_dev;
+	return 0;
+}
+
+//early_arch_initcall(transmeta_init_cpu);

arch/i386/kernel/cpu/umc.c

+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/processor.h>
+#include "cpu.h"
+
+/* UMC chips appear to be only either 386 or 486, so no special init takes place.
+ */
+static void __init init_umc(struct cpuinfo_x86 * c)
+{
+
+}
+
+static struct cpu_dev umc_cpu_dev __initdata = {
+	c_vendor:	"UMC",
+	c_ident: 	{ "UMC UMC UMC" },
+	c_models: {
+		{ X86_VENDOR_UMC,	4,
+		  { 
+			  [1] "U5D", 
+			  [2] "U5S", 
+		  }
+		},
+	},
+	c_init:		init_umc,
+};
+
+int __init umc_init_cpu(void)
+{
+	cpu_devs[X86_VENDOR_UMC] = &umc_cpu_dev;
+	return 0;
+}
+
+//early_arch_initcall(umc_init_cpu);

arch/i386/kernel/suspend.c

@@ -24,8 +24,156 @@
 #include <linux/suspend.h>
 #include <asm/uaccess.h>
 #include <asm/acpi.h>
+#include <asm/tlbflush.h>
 
 
+static struct saved_context saved_context;
+
+/*
+ * save_processor_context
+ * 
+ * Save the state of the processor before we go to sleep.
+ *
+ * return_stack is the value of the stack pointer (%esp) as the caller sees it.
+ * A good way could not be found to obtain it from here (don't want to make _too_
+ * many assumptions about the layout of the stack this far down.) Also, the 
+ * handy little __builtin_frame_pointer(level) where level > 0, is blatantly 
+ * buggy - it returns the value of the stack at the proper location, not the 
+ * location, like it should (as of gcc 2.91.66)
+ * 
+ * Note that the context and timing of this function is pretty critical.
+ * With a minimal amount of things going on in the caller and in here, gcc
+ * does a good job of being just a dumb compiler.  Watch the assembly output
+ * if anything changes, though, and make sure everything is going in the right
+ * place. 
+ */
+static inline void save_processor_context (void)
+{
+	kernel_fpu_begin();
+
+	/*
+	 * descriptor tables
+	 */
+	asm volatile ("sgdt (%0)" : "=m" (saved_context.gdt_limit));
+	asm volatile ("sidt (%0)" : "=m" (saved_context.idt_limit));
+	asm volatile ("sldt (%0)" : "=m" (saved_context.ldt));
+	asm volatile ("str (%0)"  : "=m" (saved_context.tr));
+
+	/*
+	 * save the general registers.
+	 * note that gcc has constructs to specify output of certain registers,
+	 * but they're not used here, because it assumes that you want to modify
+	 * those registers, so it tries to be smart and save them beforehand.
+	 * It's really not necessary, and kinda fishy (check the assembly output),
+	 * so it's avoided. 
+	 */
+	asm volatile ("movl %%esp, (%0)" : "=m" (saved_context.esp));
+	asm volatile ("movl %%eax, (%0)" : "=m" (saved_context.eax));
+	asm volatile ("movl %%ebx, (%0)" : "=m" (saved_context.ebx));
+	asm volatile ("movl %%ecx, (%0)" : "=m" (saved_context.ecx));
+	asm volatile ("movl %%edx, (%0)" : "=m" (saved_context.edx));
+	asm volatile ("movl %%ebp, (%0)" : "=m" (saved_context.ebp));
+	asm volatile ("movl %%esi, (%0)" : "=m" (saved_context.esi));
+	asm volatile ("movl %%edi, (%0)" : "=m" (saved_context.edi));
+
+	/*
+	 * segment registers
+	 */
+	asm volatile ("movw %%es, %0" : "=r" (saved_context.es));
+	asm volatile ("movw %%fs, %0" : "=r" (saved_context.fs));
+	asm volatile ("movw %%gs, %0" : "=r" (saved_context.gs));
+	asm volatile ("movw %%ss, %0" : "=r" (saved_context.ss));
+
+	/*
+	 * control registers 
+	 */
+	asm volatile ("movl %%cr0, %0" : "=r" (saved_context.cr0));
+	asm volatile ("movl %%cr2, %0" : "=r" (saved_context.cr2));
+	asm volatile ("movl %%cr3, %0" : "=r" (saved_context.cr3));
+	asm volatile ("movl %%cr4, %0" : "=r" (saved_context.cr4));
+
+	/*
+	 * eflags
+	 */
+	asm volatile ("pushfl ; popl (%0)" : "=m" (saved_context.eflags));
+}
+
+/*
+ * restore_processor_context
+ * 
+ * Restore the processor context as it was before we went to sleep
+ * - descriptor tables
+ * - control registers
+ * - segment registers
+ * - flags
+ * 
+ * Note that it is critical that this function is declared inline.  
+ * It was separated out from restore_state to make that function
+ * a little clearer, but it needs to be inlined because we won't have a
+ * stack when we get here (so we can't push a return address).
+ */
+static inline void restore_processor_context (void)
+{
+	/*
+	 * first restore %ds, so we can access our data properly
+	 */
+	asm volatile (".align 4");
+	asm volatile ("movw %0, %%ds" :: "r" ((u16)__KERNEL_DS));
+
+
+	/*
+	 * control registers
+	 */
+	asm volatile ("movl %0, %%cr4" :: "r" (saved_context.cr4));
+	asm volatile ("movl %0, %%cr3" :: "r" (saved_context.cr3));
+	asm volatile ("movl %0, %%cr2" :: "r" (saved_context.cr2));
+	asm volatile ("movl %0, %%cr0" :: "r" (saved_context.cr0));
+	
+	/*
+	 * segment registers
+	 */
+	asm volatile ("movw %0, %%es" :: "r" (saved_context.es));
+	asm volatile ("movw %0, %%fs" :: "r" (saved_context.fs));
+	asm volatile ("movw %0, %%gs" :: "r" (saved_context.gs));
+	asm volatile ("movw %0, %%ss" :: "r" (saved_context.ss));
+
+	/*
+	 * the other general registers
+	 *
+	 * note that even though gcc has constructs to specify memory 
+	 * input into certain registers, it will try to be too smart
+	 * and save them at the beginning of the function.  This is esp.
+	 * bad since we don't have a stack set up when we enter, and we 
+	 * want to preserve the values on exit. So, we set them manually.
+	 */
+	asm volatile ("movl %0, %%esp" :: "m" (saved_context.esp));
+	asm volatile ("movl %0, %%ebp" :: "m" (saved_context.ebp));
+	asm volatile ("movl %0, %%eax" :: "m" (saved_context.eax));
+	asm volatile ("movl %0, %%ebx" :: "m" (saved_context.ebx));
+	asm volatile ("movl %0, %%ecx" :: "m" (saved_context.ecx));
+	asm volatile ("movl %0, %%edx" :: "m" (saved_context.edx));
+	asm volatile ("movl %0, %%esi" :: "m" (saved_context.esi));
+	asm volatile ("movl %0, %%edi" :: "m" (saved_context.edi));
+
+	/*
+	 * now restore the descriptor tables to their proper values
+	 * ltr is done i fix_processor_context().
+	 */
+	asm volatile ("lgdt (%0)" :: "m" (saved_context.gdt_limit));
+	asm volatile ("lidt (%0)" :: "m" (saved_context.idt_limit));
+	asm volatile ("lldt (%0)" :: "m" (saved_context.ldt));
+
+	fix_processor_context();
+
+	/*
+	 * the flags
+	 */
+	asm volatile ("pushl %0 ; popfl" :: "m" (saved_context.eflags));
+
+	do_fpu_end();
+}
+
+#ifdef CONFIG_ACPI_SLEEP
 void do_suspend_lowlevel(int resume)
 {
 /*
@@ -44,3 +192,111 @@ void do_suspend_lowlevel(int resume)
 	acpi_restore_register_state();
 	restore_processor_context();
 }
+#endif
+
+void fix_processor_context(void)
+{
+	int nr = smp_processor_id();
+	struct tss_struct * t = &init_tss[nr];
+
+	set_tss_desc(nr,t);	/* This just modifies memory; should not be neccessary. But... This is neccessary, because 386 hardware has concept of busy tsc or some similar stupidity. */
+        gdt_table[__TSS(nr)].b &= 0xfffffdff;
+
+	load_TR(nr);		/* This does ltr */
+
+	load_LDT(&current->mm->context);	/* This does lldt */
+
+	/*
+	 * Now maybe reload the debug registers
+	 */
+	if (current->thread.debugreg[7]){
+                loaddebug(&current->thread, 0);
+                loaddebug(&current->thread, 1);
+                loaddebug(&current->thread, 2);
+                loaddebug(&current->thread, 3);
+                /* no 4 and 5 */
+                loaddebug(&current->thread, 6);
+                loaddebug(&current->thread, 7);
+	}
+
+}
+
+static void
+do_fpu_end(void)
+{
+        /* restore FPU regs if necessary */
+	/* Do it out of line so that gcc does not move cr0 load to some stupid place */
+        kernel_fpu_end();
+}
+
+/* Local variables for do_magic */
+static int loop __nosavedata = 0;
+static int loop2 __nosavedata = 0;
+
+/*
+ * (KG): Since we affect stack here, we make this function as flat and easy
+ * as possible in order to not provoke gcc to use local variables on the stack.
+ * Note that on resume, all (expect nosave) variables will have the state from
+ * the time of writing (suspend_save_image) and the registers (including the
+ * stack pointer, but excluding the instruction pointer) will be loaded with 
+ * the values saved at save_processor_context() time.
+ */
+void do_magic(int resume)
+{
+	/* DANGER WILL ROBINSON!
+	 *
+	 * If this function is too difficult for gcc to optimize, it will crash and burn!
+	 * see above.
+	 *
+	 * DO NOT TOUCH.
+	 */
+
+	if (!resume) {
+		do_magic_suspend_1();
+		save_processor_context();	/* We need to capture registers and memory at "same time" */
+		do_magic_suspend_2();		/* If everything goes okay, this function does not return */
+		return;
+	}
+
+	/* We want to run from swapper_pg_dir, since swapper_pg_dir is stored in constant
+	 * place in memory 
+	 */
+
+        __asm__( "movl %%ecx,%%cr3\n" ::"c"(__pa(swapper_pg_dir)));
+
+/*
+ * Final function for resuming: after copying the pages to their original
+ * position, it restores the register state.
+ *
+ * What about page tables? Writing data pages may toggle
+ * accessed/dirty bits in our page tables. That should be no problems
+ * with 4MB page tables. That's why we require have_pse.  
+ *
+ * This loops destroys stack from under itself, so it better should
+ * not use any stack space, itself. When this function is entered at
+ * resume time, we move stack to _old_ place.  This is means that this
+ * function must use no stack and no local variables in registers,
+ * until calling restore_processor_context();
+ *
+ * Critical section here: noone should touch saved memory after
+ * do_magic_resume_1; copying works, because nr_copy_pages,
+ * pagedir_nosave, loop and loop2 are nosavedata.
+ */
+	do_magic_resume_1();
+
+	for (loop=0; loop < nr_copy_pages; loop++) {
+		/* You may not call something (like copy_page) here: see above */
+		for (loop2=0; loop2 < PAGE_SIZE; loop2++) {
+			*(((char *)((pagedir_nosave+loop)->orig_address))+loop2) =
+				*(((char *)((pagedir_nosave+loop)->address))+loop2);
+			__flush_tlb();
+		}
+	}
+
+	restore_processor_context();
+
+/* Ahah, we now run with our old stack, and with registers copied from
+   suspend time */
+
+	do_magic_resume_2();
+}

arch/mips/boot/Makefile

@@ -26,7 +26,7 @@ strip-flags	= $(addprefix --remove-section=,$(drop-sections))
 
 all: vmlinux.ecoff addinitrd
 
-vmlinux.ecoff:	$(CONFIGURE) elf2ecoff $(TOPDIR)/vmlinux
+vmlinux.ecoff:	elf2ecoff $(TOPDIR)/vmlinux
 	./elf2ecoff $(TOPDIR)/vmlinux vmlinux.ecoff $(E2EFLAGS)
 
 elf2ecoff: elf2ecoff.c

arch/mips64/boot/Makefile

@@ -17,7 +17,7 @@ endif
 
 all: vmlinux.ecoff addinitrd
 
-vmlinux.ecoff:	$(CONFIGURE) elf2ecoff $(TOPDIR)/vmlinux
+vmlinux.ecoff:	elf2ecoff $(TOPDIR)/vmlinux
 	./elf2ecoff $(TOPDIR)/vmlinux vmlinux.ecoff $(E2EFLAGS)
 
 elf2ecoff: elf2ecoff.c

arch/s390/boot/Makefile

 #
 # arch/s390/boot/Makefile
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definition is now in the main makefile...
 
 OBJCOPY = $(CROSS_COMPILE)objcopy
 
@@ -21,7 +16,7 @@ include $(TOPDIR)/Rules.make
 %.boot: %.lnk
 	$(OBJCOPY) -O binary $< $@
 
-image: $(CONFIGURE) $(TOPDIR)/vmlinux \
+image: $(TOPDIR)/vmlinux \
 	iplfba.boot ipleckd.boot ipldump.boot
 	$(OBJCOPY) -O binary $(TOPDIR)/vmlinux image
 	$(NM) $(TOPDIR)/vmlinux | grep -v '\(compiled\)\|\( [aUw] \)\|\(\.\)\|\(LASH[RL]DI\)' | sort > $(TOPDIR)/System.map

arch/s390x/boot/Makefile

 #
 # Makefile for the linux s390-specific parts of the memory manager.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definition is now in the main makefile...
 
 OBJCOPY = $(CROSS_COMPILE)objcopy
 
@@ -21,7 +16,7 @@ EXTRA_AFLAGS := -traditional
 %.boot: %.lnk
 	$(OBJCOPY) -O binary $< $@
 
-image: $(CONFIGURE) $(TOPDIR)/vmlinux \
+image: $(TOPDIR)/vmlinux \
 	iplfba.boot ipleckd.boot ipldump.boot
 	$(OBJCOPY) -O binary $(TOPDIR)/vmlinux image
 	$(NM) $(TOPDIR)/vmlinux | grep -v '\(compiled\)\|\( [aUw] \)\|\(\.\)\|\(LASH[RL]DI\)' | sort > $(TOPDIR)/System.map

arch/sh/boot/Makefile

@@ -10,19 +10,19 @@
 
 SYSTEM  =$(TOPDIR)/vmlinux
 
-Image:	$(CONFIGURE) $(SYSTEM)
+Image:	$(SYSTEM)
 	$(OBJCOPY) $(SYSTEM) Image
 
-zImage: $(CONFIGURE) compressed/vmlinux
+zImage: compressed/vmlinux
 	$(OBJCOPY) compressed/vmlinux zImage
 
 compressed/vmlinux: $(TOPDIR)/vmlinux
 	$(MAKE) -C compressed vmlinux
 
-install: $(CONFIGURE) Image
+install: Image
 	sh -x ./install.sh $(KERNELRELEASE) Image $(TOPDIR)/System.map "$(INSTALL_PATH)"
 
-zinstall: $(CONFIGURE) zImage
+zinstall: zImage
 	sh -x ./install.sh $(KERNELRELEASE) zImage $(TOPDIR)/System.map "$(INSTALL_PATH)"
 
 dep:

arch/sparc/kernel/devices.c

@@ -22,8 +22,8 @@ extern void cpu_probe(void);
 extern void clock_stop_probe(void); /* tadpole.c */
 extern void sun4c_probe_memerr_reg(void);
 
-unsigned long __init
-device_scan(unsigned long mem_start)
+void __init
+device_scan(void)
 {
 	char node_str[128];
 	int thismid;
@@ -37,46 +37,45 @@ device_scan(unsigned long mem_start)
 		int scan;
 		scan = prom_getchild(prom_root_node);
 		/* One can look it up in PROM instead */
-		/* prom_printf("root child is %08lx\n", (unsigned long) scan); */
-		while((scan = prom_getsibling(scan)) != 0) {
-			prom_getstring(scan, "device_type", node_str, sizeof(node_str));
-			if(strcmp(node_str, "cpu") == 0) {
+		while ((scan = prom_getsibling(scan)) != 0) {
+			prom_getstring(scan, "device_type",
+				       node_str, sizeof(node_str));
+			if (strcmp(node_str, "cpu") == 0) {
 				linux_cpus[linux_num_cpus].prom_node = scan;
-				prom_getproperty(scan, "mid", (char *) &thismid, sizeof(thismid));
+				prom_getproperty(scan, "mid",
+						 (char *) &thismid, sizeof(thismid));
 				linux_cpus[linux_num_cpus].mid = thismid;
-				/* prom_printf("Found CPU %d <node=%08lx,mid=%d>\n", linux_num_cpus, (unsigned long) scan, thismid); */
-				printk("Found CPU %d <node=%08lx,mid=%d>\n", linux_num_cpus, (unsigned long) scan, thismid);
+				printk("Found CPU %d <node=%08lx,mid=%d>\n",
+				       linux_num_cpus, (unsigned long) scan, thismid);
 				linux_num_cpus++;
 			}
 		}
-		if(linux_num_cpus == 0) {
-			if (sparc_cpu_model == sun4d) {
-				scan = prom_getchild(prom_root_node);
-				for (scan = prom_searchsiblings(scan, "cpu-unit"); scan;
-				     scan = prom_searchsiblings(prom_getsibling(scan), "cpu-unit")) {
-					int node = prom_getchild(scan);
+		if (linux_num_cpus == 0 && sparc_cpu_model == sun4d) {
+			scan = prom_getchild(prom_root_node);
+			for (scan = prom_searchsiblings(scan, "cpu-unit"); scan;
+			     scan = prom_searchsiblings(prom_getsibling(scan), "cpu-unit")) {
+				int node = prom_getchild(scan);
 
-					prom_getstring(node, "device_type", node_str, sizeof(node_str));
-					if (strcmp(node_str, "cpu") == 0) {
-						prom_getproperty(node, "cpu-id", (char *) &thismid, sizeof(thismid));
-						linux_cpus[linux_num_cpus].prom_node = node;
-						linux_cpus[linux_num_cpus].mid = thismid;
-						/* prom_printf("Found CPU %d <node=%08lx,mid=%d>\n", 
-							       linux_num_cpus, (unsigned long) node, thismid); */
-						printk("Found CPU %d <node=%08lx,mid=%d>\n", 
-						       linux_num_cpus, (unsigned long) node, thismid);
-						linux_num_cpus++;
-					}
+				prom_getstring(node, "device_type",
+					       node_str, sizeof(node_str));
+				if (strcmp(node_str, "cpu") == 0) {
+					prom_getproperty(node, "cpu-id",
+							 (char *) &thismid, sizeof(thismid));
+					linux_cpus[linux_num_cpus].prom_node = node;
+					linux_cpus[linux_num_cpus].mid = thismid;
+					printk("Found CPU %d <node=%08lx,mid=%d>\n", 
+					       linux_num_cpus, (unsigned long) node, thismid);
+					linux_num_cpus++;
 				}
 			}
 		}
-		if(linux_num_cpus == 0) {
+		if (linux_num_cpus == 0) {
 			printk("No CPU nodes found, cannot continue.\n");
 			/* Probably a sun4e, Sun is trying to trick us ;-) */
 			halt();
 		}
 		printk("Found %d CPU prom device tree node(s).\n", linux_num_cpus);
-	};
+	}
 
 	cpu_probe();
 #ifdef CONFIG_SUN_AUXIO
@@ -92,5 +91,5 @@ device_scan(unsigned long mem_start)
 	if (ARCH_SUN4C_SUN4)
 		sun4c_probe_memerr_reg();
 
-	return mem_start;
+	return;
 }

arch/sparc64/kernel/Makefile

@@ -31,11 +31,6 @@ else
   endif
 endif
 
-#
-# This is just to get the dependencies...
-#
-binfmt_elf32.o: $(TOPDIR)/fs/binfmt_elf.c
-
 ifneq ($(NEW_GCC),y)
   CMODEL_CFLAG := -mmedlow
 else

arch/sparc64/kernel/sys_sparc32.c

@@ -2879,16 +2879,19 @@ do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
 	bprm.sh_bang = 0;
 	bprm.loader = 0;
 	bprm.exec = 0;
-	if ((bprm.argc = count32(argv, bprm.p / sizeof(u32))) < 0) {
-		allow_write_access(file);
-		fput(file);
-		return bprm.argc;
-	}
-	if ((bprm.envc = count32(envp, bprm.p / sizeof(u32))) < 0) {
-		allow_write_access(file);
-		fput(file);
-		return bprm.envc;
-	}
+
+	bprm.mm = mm_alloc();
+	retval = -ENOMEM;
+	if (!bprm.mm) 
+		goto out_file;
+
+	bprm.argc = count32(argv, bprm.p / sizeof(u32));
+	if ((retval = bprm.argc) < 0)
+		goto out_mm;
+
+	bprm.envc = count32(envp, bprm.p / sizeof(u32));
+	if ((retval = bprm.envc) < 0)
+		goto out_mm;
 
 	retval = prepare_binprm(&bprm);
 	if (retval < 0)
@@ -2914,14 +2917,20 @@ do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
 
 out:
 	/* Something went wrong, return the inode and free the argument pages*/
-	allow_write_access(bprm.file);
-	if (bprm.file)
-		fput(bprm.file);
+	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
+		struct page * page = bprm.page[i];
+		if (page)
+			__free_page(page);
+	}
 
-	for (i=0 ; i<MAX_ARG_PAGES ; i++)
-		if (bprm.page[i])
-			__free_page(bprm.page[i]);
+out_mm:
+	mmdrop(bprm.mm);
 
+out_file:
+	if (bprm.file) {
+		allow_write_access(bprm.file);
+		fput(bprm.file);
+	}
 	return retval;
 }
 

arch/sparc64/mm/generic.c

@@ -17,20 +17,10 @@
 
 static inline void forget_pte(pte_t page)
 {
-	if (pte_none(page))
-		return;
-	if (pte_present(page)) {
-		unsigned long pfn = pte_pfn(page);
-		struct page *ptpage;
-		if (!pfn_valid(pfn))
-			return;
-		ptpage = pfn_to_page(page);
-		if (PageReserved(ptpage))
-			return;
-		page_cache_release(ptpage);
-		return;
+	if (!pte_none(page)) {
+		printk("forget_pte: old mapping existed!\n");
+		BUG();
 	}
-	swap_free(pte_to_swp_entry(page));
 }
 
 /* Remap IO memory, the same way as remap_page_range(), but use

arch/x86_64/boot/Makefile

@@ -31,11 +31,11 @@ BOOT_INCL =	$(TOPDIR)/include/linux/config.h \
 		$(TOPDIR)/include/linux/autoconf.h \
 		$(TOPDIR)/include/asm/boot.h
 
-zImage: $(CONFIGURE) bootsect setup compressed/vmlinux tools/build
+zImage: bootsect setup compressed/vmlinux tools/build
 	$(OBJCOPY) compressed/vmlinux compressed/vmlinux.out
 	tools/build bootsect setup compressed/vmlinux.out $(ROOT_DEV) > zImage
 
-bzImage: $(CONFIGURE) bbootsect bsetup compressed/bvmlinux tools/build
+bzImage: bbootsect bsetup compressed/bvmlinux tools/build
 	$(OBJCOPY) compressed/bvmlinux compressed/bvmlinux.out
 	tools/build -b bbootsect bsetup compressed/bvmlinux.out $(ROOT_DEV) > bzImage
 
@@ -51,14 +51,14 @@ compressed/bvmlinux: $(TOPDIR)/vmlinux
 zdisk: $(BOOTIMAGE)
 	dd bs=8192 if=$(BOOTIMAGE) of=/dev/fd0
 
-zlilo: $(CONFIGURE) $(BOOTIMAGE)
+zlilo: $(BOOTIMAGE)
 	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
 	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
 	cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
 	cp $(TOPDIR)/System.map $(INSTALL_PATH)/
 	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
 
-install: $(CONFIGURE) $(BOOTIMAGE)
+install: $(BOOTIMAGE)
 	sh -x ./install.sh $(KERNELRELEASE) $(BOOTIMAGE) $(TOPDIR)/System.map "$(INSTALL_PATH)"
 
 tools/build: tools/build.c

drivers/base/sys.c

@@ -44,6 +44,6 @@ static int sys_bus_init(void)
        return device_register(&system_bus);
 }
 
-subsys_initcall(sys_bus_init);
+postcore_initcall(sys_bus_init);
 EXPORT_SYMBOL(register_sys_device);
 EXPORT_SYMBOL(unregister_sys_device);

drivers/ide/ide-disk.c

@@ -1069,7 +1069,9 @@ static void idedisk_setup(struct ata_device *drive)
                         }
 #else
 			printk("%s: setmax_ext LBA %llu, native  %llu\n",
-				drive->name, set_max_ext, capacity_2);
+				drive->name,
+			       (long long) set_max_ext,
+			       (long long) capacity_2);
 #endif
 		}
 		drive->bios_cyl	= drive->cyl;

drivers/ide/ide-pci.c

@@ -451,7 +451,7 @@ static void __init setup_pci_device(struct pci_dev *dev, struct ata_pci_device *
 		if (d->init_chipset)
 			d->init_chipset(dev);
 #ifdef __sparc__
-		printk(KERN_INFO "ATA: 100%% native mode on irq\n", __irq_itoa(pciirq));
+		printk(KERN_INFO "ATA: 100%% native mode on irq %s\n", __irq_itoa(pciirq));
 #else
 		printk(KERN_INFO "ATA: 100%% native mode on irq %d\n", pciirq);
 #endif

drivers/ide/probe.c

@@ -875,7 +875,8 @@ static void channel_probe(struct ata_channel *ch)
 
 	/* Register this hardware interface within the global device tree.
 	 */
-	sprintf(ch->dev.bus_id, "%04x", ch->io_ports[IDE_DATA_OFFSET]);
+	sprintf(ch->dev.bus_id, "%04lx",
+		(unsigned long) ch->io_ports[IDE_DATA_OFFSET]);
 	sprintf(ch->dev.name, "ide");
 	ch->dev.driver_data = ch;
 #ifdef CONFIG_PCI

drivers/net/irda/irda-usb.c

@@ -857,7 +857,7 @@ static void irda_usb_receive(struct urb *urb)
         new->mac.raw  = new->data;
         new->protocol = htons(ETH_P_IRDA);
         netif_rx(new);
-		self->netdev->last_rx = jiffies;
+        self->netdev->last_rx = jiffies;
 
 done:
 	/* Note : at this point, the URB we've just received (urb)

drivers/pci/pci-driver.c

@@ -204,7 +204,7 @@ static int __init pci_driver_init(void)
 	return bus_register(&pci_bus_type);
 }
 
-subsys_initcall(pci_driver_init);
+postcore_initcall(pci_driver_init);
 
 EXPORT_SYMBOL(pci_match_device);
 EXPORT_SYMBOL(pci_register_driver);

drivers/usb/core/message.c

@@ -36,7 +36,7 @@ static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length)
 	add_wait_queue(&awd.wqh, &wait);
 
 	urb->context = &awd;
-	status = usb_submit_urb(urb, GFP_KERNEL);
+	status = usb_submit_urb(urb, GFP_ATOMIC);
 	if (status) {
 		// something went wrong
 		usb_free_urb(urb);

drivers/usb/host/ohci-hcd.c

@@ -12,6 +12,9 @@
  * 
  * History:
  * 
+ * 2002/06/01 remember frame when HC won't see EDs any more; use that info
+ *	to fix urb unlink races caused by interrupt latency assumptions;
+ *	minor ED field and function naming updates
  * 2002/01/18 package as a patch for 2.5.3; this should match the
  *	2.4.17 kernel modulo some bugs being fixed.
  *
@@ -106,7 +109,7 @@
  *	- lots more testing!!
  */
 
-#define DRIVER_VERSION "$Revision: 1.9 $"
+#define DRIVER_VERSION "2002-Jun-01"
 #define DRIVER_AUTHOR "Roman Weissgaerber <weissg@vienna.at>, David Brownell"
 #define DRIVER_DESC "USB 1.1 'Open' Host Controller (OHCI) Driver"
 
@@ -287,7 +290,7 @@ static int ohci_urb_dequeue (struct usb_hcd *hcd, struct urb *urb)
 		}
 			
 		urb_priv->state = URB_DEL; 
-		ed_unlink (urb->dev, urb_priv->ed);
+		start_urb_unlink (ohci, urb_priv->ed);
 		spin_unlock_irqrestore (&ohci->lock, flags);
 	} else {
 		/*
@@ -508,16 +511,15 @@ static void ohci_irq (struct usb_hcd *hcd)
   
 	/* could track INTR_SO to reduce available PCI/... bandwidth */
 
-	// FIXME:  this assumes SOF (1/ms) interrupts don't get lost...
-	if (ints & OHCI_INTR_SF) { 
-		unsigned int frame = le16_to_cpu (ohci->hcca->frame_no) & 1;
+	/* handle any pending URB/ED unlinks, leaving INTR_SF enabled
+	 * when there's still unlinking to be done (next frame).
+	 */
+	spin_lock (&ohci->lock);
+	if (ohci->ed_rm_list)
+		finish_unlinks (ohci, le16_to_cpu (ohci->hcca->frame_no));
+	if ((ints & OHCI_INTR_SF) != 0 && !ohci->ed_rm_list)
 		writel (OHCI_INTR_SF, &regs->intrdisable);	
-		if (ohci->ed_rm_list [!frame] != NULL) {
-			dl_del_list (ohci, !frame);
-		}
-		if (ohci->ed_rm_list [frame] != NULL)
-			writel (OHCI_INTR_SF, &regs->intrenable);	
-	}
+	spin_unlock (&ohci->lock);
 
 	writel (ints, &regs->intrstatus);
 	writel (OHCI_INTR_MIE, &regs->intrenable);	
@@ -719,8 +721,7 @@ static int hc_restart (struct ohci_hcd *ohci)
 	for (i = 0; i < NUM_INTS; i++) ohci->hcca->int_table [i] = 0;
 	
 	/* no EDs to remove */
-	ohci->ed_rm_list [0] = NULL;
-	ohci->ed_rm_list [1] = NULL;
+	ohci->ed_rm_list = NULL;
 
 	/* empty control and bulk lists */	 
 	ohci->ed_isotail     = NULL;
@@ -802,7 +803,7 @@ static int ohci_resume (struct usb_hcd *hcd)
 		ohci->disabled = 0;
 		ohci->sleeping = 0;
 		ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER;
-		if (!ohci->ed_rm_list [0] && !ohci->ed_rm_list [1]) {
+		if (!ohci->ed_rm_list) {
 			if (ohci->ed_controltail)
 				ohci->hc_control |= OHCI_CTRL_CLE;
 			if (ohci->ed_bulktail)

drivers/usb/host/ohci.h

@@ -27,22 +27,29 @@ struct ed {
 	__u32			hwNextED;	/* next ED in list */
 
 	/* rest are purely for the driver's use */
-	struct ed		*ed_prev;  
-	__u8			int_period;
-	__u8			int_branch;
-	__u8			int_load; 
-	__u8			int_interval;
-	__u8			state;			// ED_{NEW,UNLINK,OPER}
+	dma_addr_t		dma;		/* addr of ED */
+	struct ed		*ed_prev;	/* for non-interrupt EDs */
+
+	u8			type; 		/* PIPE_{BULK,...} */
+	u8			interval;	/* interrupt, isochronous */
+	union {
+		struct intr_info {		/* interrupt */
+			u8	int_period;
+			u8	int_branch;
+			u8	int_load; 
+		};
+		u16		last_iso;	/* isochronous */
+	};
+
+	u8			state;		/* ED_{NEW,UNLINK,OPER} */
 #define ED_NEW 		0x00		/* unused, no dummy td */
 #define ED_UNLINK 	0x01		/* dummy td, maybe linked to hc */
 #define ED_OPER		0x02		/* dummy td, _is_ linked to hc */
 #define ED_URB_DEL  	0x08		/* for unlinking; masked in */
 
-	__u8			type; 
-	__u16			last_iso;
+	/* HC may see EDs on rm_list until next frame (frame_no == tick) */
+	u16			tick;
 	struct ed		*ed_rm_list;
-
-	dma_addr_t		dma;			/* addr of ED */
 } __attribute__ ((aligned(16)));
 
 #define ED_MASK	((u32)~0x0f)		/* strip hw status in low addr bits */
@@ -335,7 +342,7 @@ struct ohci_hcd {
 	struct ohci_hcca	*hcca;
 	dma_addr_t		hcca_dma;
 
-	struct ed		*ed_rm_list [2];	/* to be removed */
+	struct ed		*ed_rm_list;		/* to be removed */
 
 	struct ed		*ed_bulktail;		/* last in bulk list */
 	struct ed		*ed_controltail;	/* last in ctrl list */

drivers/usb/host/uhci-hcd.c

@@ -2515,7 +2515,7 @@ static const struct hc_driver uhci_driver = {
 	suspend:		uhci_suspend,
 	resume:			uhci_resume,
 #endif
-	stop:			uhci_stop,
+	stop:			__devexit_p(uhci_stop),
 
 	hcd_alloc:		uhci_hcd_alloc,
 	hcd_free:		uhci_hcd_free,

drivers/usb/misc/emi26.c

@@ -13,6 +13,7 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/init.h>
 #include <linux/usb.h>
 
 #define MAX_INTEL_HEX_RECORD_LENGTH 16

fs/ntfs/ChangeLog

@@ -21,8 +21,38 @@ ToDo:
 	  several copies of almost identicall functions and the functions are
 	  quite big. Modularising them a bit, e.g. a-la get_block(), will make
 	  them cleaner and make code reuse easier.
-	- Want to use dummy inodes for address space i/o. We need some VFS
-	  changes first, which are currently under discussion.
+	- Want to use dummy inodes for address space i/o.
+
+2.0.8 - Major updates for handling of case sensitivity and dcache aliasing.
+
+	Big thanks go to Al Viro and other inhabitants of #kernel for investing
+	their time to discuss the case sensitivity and dcache aliasing issues.
+
+	- Remove unused source file fs/ntfs/attraops.c.
+	- Remove show_inodes mount option(s), thus dropping support for
+	  displaying of short file names.
+	- Remove deprecated mount option posix.
+	- Restore show_sys_files mount option.
+	- Add new mount option case_sensitive, to determine if the driver
+	  treats file names as case sensitive or not. If case sensitive, create
+	  file names in the POSIX namespace. Otherwise create file names in the
+	  LONG/WIN32 namespace. Note, files remain accessible via their short
+	  file name, if it exists.
+	- Remove really dumb logic bug in boot sector recovery code.
+	- Fix dcache aliasing issues wrt short/long file names via changes
+	  to fs/ntfs/dir.c::ntfs_lookup_inode_by_name() and
+	  fs/ntfs/namei.c::ntfs_lookup():
+	  - Add additional argument to ntfs_lookup_inode_by_name() in which we
+	    return information about the matching file name if the case is not
+	    matching or the match is a short file name. See comments above the
+	    function definition for details.
+	  - Change ntfs_lookup() to only create dcache entries for the correctly
+	    cased file name and only for the WIN32 namespace counterpart of DOS
+	    namespace file names. This ensures we have only one dentry per
+	    directory and also removes all dcache aliasing issues between short
+	    and long file names once we add write support. See comments above
+	    function for details.
+	- Fix potential 1 byte overflow in fs/ntfs/unistr.c::ntfs_ucstonls().
 
 2.0.7 - Minor cleanups and updates for changes in core kernel code.
 

fs/ntfs/Makefile

@@ -5,7 +5,7 @@ obj-$(CONFIG_NTFS_FS) += ntfs.o
 ntfs-objs := aops.o attrib.o compress.o debug.o dir.o file.o inode.o mft.o \
 	     mst.o namei.o super.o sysctl.o time.o unistr.o upcase.o
 
-EXTRA_CFLAGS = -DNTFS_VERSION=\"2.0.7\"
+EXTRA_CFLAGS = -DNTFS_VERSION=\"2.0.8\"
 
 ifeq ($(CONFIG_NTFS_DEBUG),y)
 EXTRA_CFLAGS += -DDEBUG

fs/ntfs/attraops.c

-#include "ntfs.h"
-
-/*
- * We need to define the attribute object structure. FIXME: Move these to
- * ntfs.h.
- */
-typedef struct {
-	ntfs_inode *a_ni;
-	ntfs_volume *a_vol;
-	atomic_t a_count;
-	s64 a_size;
-	struct rw_semaphore a_sem;
-	struct address_space a_mapping;
-	unsigned long a_flags;
-} attr_obj;
-
-/**
- * ntfs_attr_readpage - fill a page @page of an attribute object @aobj with data
- * @aobj:	attribute object to which the page @page belongs
- * @page:	page cache page to fill with data
- *
- */
-//static int ntfs_attr_readpage(attr_obj *aobj, struct page *page)
-static int ntfs_attr_readpage(struct file *aobj, struct page *page)
-{
-	return -EOPNOTSUPP;
-}
-
-/*
- * Address space operations for accessing attributes. Note that these functions
- * do not accept an inode as the first parameter but an attribute object. We
- * use this to implement a generic interface that is not bound to inodes in
- * order to support multiple named streams per file, multiple bitmaps per file
- * and directory, etc. Basically, this gives access to any attribute within an
- * mft record.
- *
- * We make use of a slab cache for attribute object allocations.
- */
-struct address_space_operations ntfs_attr_aops = {
-	writepage:	NULL,			/* Write dirty page to disk. */
-	readpage:	ntfs_attr_readpage,	/* Fill page with data. */
-	sync_page:	block_sync_page,	/* Currently, just unplugs the
-						   disk request queue. */
-	prepare_write:	NULL,			/* . */
-	commit_write:	NULL,			/* . */
-};
-