21 files changed, 431 insertions, 362 deletions

diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index aacdae6f372d..0fbcfe00dd8d 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline.o
 obj-$(CONFIG_X86_MPPARSE)	+= mpparse.o
 obj-$(CONFIG_X86_LOCAL_APIC)	+= apic.o nmi.o
 obj-$(CONFIG_X86_IO_APIC)	+= io_apic.o
+obj-$(CONFIG_X86_REBOOTFIXUPS)	+= reboot_fixups.o
 obj-$(CONFIG_X86_NUMAQ)		+= numaq.o
 obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index e3879f7625c2..d509836b70c3 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -1265,8 +1265,6 @@ int __init APIC_init_uniprocessor (void)
 
 	setup_local_APIC();
 
-	if (nmi_watchdog == NMI_LOCAL_APIC)
-		check_nmi_watchdog();
 #ifdef CONFIG_X86_IO_APIC
 	if (smp_found_config)
 		if (!skip_ioapic_setup && nr_ioapics)
diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c
index 9f7a7ea6388d..f468a979e9aa 100644
--- a/arch/i386/kernel/cpu/mtrr/generic.c
+++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -124,8 +124,8 @@ int generic_get_free_region(unsigned long base, unsigned long size)
 	return -ENOSPC;
 }
 
-void generic_get_mtrr(unsigned int reg, unsigned long *base,
-		      unsigned int *size, mtrr_type * type)
+static void generic_get_mtrr(unsigned int reg, unsigned long *base,
+			     unsigned int *size, mtrr_type * type)
 {
 	unsigned int mask_lo, mask_hi, base_lo, base_hi;
 
diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c
index 54999e4c55fd..e1c2042b9b7e 100644
--- a/arch/i386/kernel/cpu/mtrr/main.c
+++ b/arch/i386/kernel/cpu/mtrr/main.c
@@ -72,17 +72,21 @@ void set_mtrr_ops(struct mtrr_ops * ops)
 static int have_wrcomb(void)
 {
 	struct pci_dev *dev;
+	u8 rev;
 	
 	if ((dev = pci_get_class(PCI_CLASS_BRIDGE_HOST << 8, NULL)) != NULL) {
-		/* ServerWorks LE chipsets have problems with write-combining 
+		/* ServerWorks LE chipsets < rev 6 have problems with write-combining
 		   Don't allow it and leave room for other chipsets to be tagged */
 		if (dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
 		    dev->device == PCI_DEVICE_ID_SERVERWORKS_LE) {
-			printk(KERN_INFO "mtrr: Serverworks LE detected. Write-combining disabled.\n");
-			pci_dev_put(dev);
-			return 0;
+			pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev);
+			if (rev <= 5) {
+				printk(KERN_INFO "mtrr: Serverworks LE rev < 6 detected. Write-combining disabled.\n");
+				pci_dev_put(dev);
+				return 0;
+			}
 		}
-		/* Intel 450NX errata # 23. Non ascending cachline evictions to
+		/* Intel 450NX errata # 23. Non ascending cacheline evictions to
 		   write combining memory may resulting in data corruption */
 		if (dev->vendor == PCI_VENDOR_ID_INTEL &&
 		    dev->device == PCI_DEVICE_ID_INTEL_82451NX) {
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index 4f28eba7fb8a..7323c19f354e 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -25,7 +25,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	        "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
 
 		/* AMD-defined */
-		"pni", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL,
 		NULL, "fxsr_opt", NULL, NULL, NULL, "lm", "3dnowext", "3dnow",
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index 3c73dc865ead..a991d4e5edd2 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -260,11 +260,9 @@ restore_nocheck:
 .section .fixup,"ax"
 iret_exc:
 	sti
-	movl $__USER_DS, %edx
-	movl %edx, %ds
-	movl %edx, %es
-	movl $11,%eax
-	call do_exit
+	pushl $0			# no error code
+	pushl $do_iret_error
+	jmp error_code
 .previous
 .section __ex_table,"a"
 	.align 4
@@ -516,8 +514,6 @@ debug_stack_correct:
 	xorl %edx,%edx			# error code 0
 	movl %esp,%eax			# pt_regs pointer
 	call do_debug
-	testl %eax,%eax
-	jnz restore_all
 	jmp ret_from_exception
 
 /*
@@ -598,8 +594,6 @@ ENTRY(int3)
 	xorl %edx,%edx		# zero error code
 	movl %esp,%eax		# pt_regs pointer
 	call do_int3
-	testl %eax,%eax
-	jnz restore_all
 	jmp ret_from_exception
 
 ENTRY(overflow)
@@ -658,296 +652,6 @@ ENTRY(spurious_interrupt_bug)
 	pushl $do_spurious_interrupt_bug
 	jmp error_code
 
-.data
-ENTRY(sys_call_table)
-	.long sys_restart_syscall	/* 0 - old "setup()" system call, used for restarting */
-	.long sys_exit
-	.long sys_fork
-	.long sys_read
-	.long sys_write
-	.long sys_open		/* 5 */
-	.long sys_close
-	.long sys_waitpid
-	.long sys_creat
-	.long sys_link
-	.long sys_unlink	/* 10 */
-	.long sys_execve
-	.long sys_chdir
-	.long sys_time
-	.long sys_mknod
-	.long sys_chmod		/* 15 */
-	.long sys_lchown16
-	.long sys_ni_syscall	/* old break syscall holder */
-	.long sys_stat
-	.long sys_lseek
-	.long sys_getpid	/* 20 */
-	.long sys_mount
-	.long sys_oldumount
-	.long sys_setuid16
-	.long sys_getuid16
-	.long sys_stime		/* 25 */
-	.long sys_ptrace
-	.long sys_alarm
-	.long sys_fstat
-	.long sys_pause
-	.long sys_utime		/* 30 */
-	.long sys_ni_syscall	/* old stty syscall holder */
-	.long sys_ni_syscall	/* old gtty syscall holder */
-	.long sys_access
-	.long sys_nice
-	.long sys_ni_syscall	/* 35 - old ftime syscall holder */
-	.long sys_sync
-	.long sys_kill
-	.long sys_rename
-	.long sys_mkdir
-	.long sys_rmdir		/* 40 */
-	.long sys_dup
-	.long sys_pipe
-	.long sys_times
-	.long sys_ni_syscall	/* old prof syscall holder */
-	.long sys_brk		/* 45 */
-	.long sys_setgid16
-	.long sys_getgid16
-	.long sys_signal
-	.long sys_geteuid16
-	.long sys_getegid16	/* 50 */
-	.long sys_acct
-	.long sys_umount	/* recycled never used phys() */
-	.long sys_ni_syscall	/* old lock syscall holder */
-	.long sys_ioctl
-	.long sys_fcntl		/* 55 */
-	.long sys_ni_syscall	/* old mpx syscall holder */
-	.long sys_setpgid
-	.long sys_ni_syscall	/* old ulimit syscall holder */
-	.long sys_olduname
-	.long sys_umask		/* 60 */
-	.long sys_chroot
-	.long sys_ustat
-	.long sys_dup2
-	.long sys_getppid
-	.long sys_getpgrp	/* 65 */
-	.long sys_setsid
-	.long sys_sigaction
-	.long sys_sgetmask
-	.long sys_ssetmask
-	.long sys_setreuid16	/* 70 */
-	.long sys_setregid16
-	.long sys_sigsuspend
-	.long sys_sigpending
-	.long sys_sethostname
-	.long sys_setrlimit	/* 75 */
-	.long sys_old_getrlimit
-	.long sys_getrusage
-	.long sys_gettimeofday
-	.long sys_settimeofday
-	.long sys_getgroups16	/* 80 */
-	.long sys_setgroups16
-	.long old_select
-	.long sys_symlink
-	.long sys_lstat
-	.long sys_readlink	/* 85 */
-	.long sys_uselib
-	.long sys_swapon
-	.long sys_reboot
-	.long old_readdir
-	.long old_mmap		/* 90 */
-	.long sys_munmap
-	.long sys_truncate
-	.long sys_ftruncate
-	.long sys_fchmod
-	.long sys_fchown16	/* 95 */
-	.long sys_getpriority
-	.long sys_setpriority
-	.long sys_ni_syscall	/* old profil syscall holder */
-	.long sys_statfs
-	.long sys_fstatfs	/* 100 */
-	.long sys_ioperm
-	.long sys_socketcall
-	.long sys_syslog
-	.long sys_setitimer
-	.long sys_getitimer	/* 105 */
-	.long sys_newstat
-	.long sys_newlstat
-	.long sys_newfstat
-	.long sys_uname
-	.long sys_iopl		/* 110 */
-	.long sys_vhangup
-	.long sys_ni_syscall	/* old "idle" system call */
-	.long sys_vm86old
-	.long sys_wait4
-	.long sys_swapoff	/* 115 */
-	.long sys_sysinfo
-	.long sys_ipc
-	.long sys_fsync
-	.long sys_sigreturn
-	.long sys_clone		/* 120 */
-	.long sys_setdomainname
-	.long sys_newuname
-	.long sys_modify_ldt
-	.long sys_adjtimex
-	.long sys_mprotect	/* 125 */
-	.long sys_sigprocmask
-	.long sys_ni_syscall	/* old "create_module" */ 
-	.long sys_init_module
-	.long sys_delete_module
-	.long sys_ni_syscall	/* 130:	old "get_kernel_syms" */
-	.long sys_quotactl
-	.long sys_getpgid
-	.long sys_fchdir
-	.long sys_bdflush
-	.long sys_sysfs		/* 135 */
-	.long sys_personality
-	.long sys_ni_syscall	/* reserved for afs_syscall */
-	.long sys_setfsuid16
-	.long sys_setfsgid16
-	.long sys_llseek	/* 140 */
-	.long sys_getdents
-	.long sys_select
-	.long sys_flock
-	.long sys_msync
-	.long sys_readv		/* 145 */
-	.long sys_writev
-	.long sys_getsid
-	.long sys_fdatasync
-	.long sys_sysctl
-	.long sys_mlock		/* 150 */
-	.long sys_munlock
-	.long sys_mlockall
-	.long sys_munlockall
-	.long sys_sched_setparam
-	.long sys_sched_getparam   /* 155 */
-	.long sys_sched_setscheduler
-	.long sys_sched_getscheduler
-	.long sys_sched_yield
-	.long sys_sched_get_priority_max
-	.long sys_sched_get_priority_min  /* 160 */
-	.long sys_sched_rr_get_interval
-	.long sys_nanosleep
-	.long sys_mremap
-	.long sys_setresuid16
-	.long sys_getresuid16	/* 165 */
-	.long sys_vm86
-	.long sys_ni_syscall	/* Old sys_query_module */
-	.long sys_poll
-	.long sys_nfsservctl
-	.long sys_setresgid16	/* 170 */
-	.long sys_getresgid16
-	.long sys_prctl
-	.long sys_rt_sigreturn
-	.long sys_rt_sigaction
-	.long sys_rt_sigprocmask	/* 175 */
-	.long sys_rt_sigpending
-	.long sys_rt_sigtimedwait
-	.long sys_rt_sigqueueinfo
-	.long sys_rt_sigsuspend
-	.long sys_pread64	/* 180 */
-	.long sys_pwrite64
-	.long sys_chown16
-	.long sys_getcwd
-	.long sys_capget
-	.long sys_capset	/* 185 */
-	.long sys_sigaltstack
-	.long sys_sendfile
-	.long sys_ni_syscall	/* reserved for streams1 */
-	.long sys_ni_syscall	/* reserved for streams2 */
-	.long sys_vfork		/* 190 */
-	.long sys_getrlimit
-	.long sys_mmap2
-	.long sys_truncate64
-	.long sys_ftruncate64
-	.long sys_stat64	/* 195 */
-	.long sys_lstat64
-	.long sys_fstat64
-	.long sys_lchown
-	.long sys_getuid
-	.long sys_getgid	/* 200 */
-	.long sys_geteuid
-	.long sys_getegid
-	.long sys_setreuid
-	.long sys_setregid
-	.long sys_getgroups	/* 205 */
-	.long sys_setgroups
-	.long sys_fchown
-	.long sys_setresuid
-	.long sys_getresuid
-	.long sys_setresgid	/* 210 */
-	.long sys_getresgid
-	.long sys_chown
-	.long sys_setuid
-	.long sys_setgid
-	.long sys_setfsuid	/* 215 */
-	.long sys_setfsgid
-	.long sys_pivot_root
-	.long sys_mincore
-	.long sys_madvise
-	.long sys_getdents64	/* 220 */
-	.long sys_fcntl64
-	.long sys_ni_syscall	/* reserved for TUX */
-	.long sys_ni_syscall
-	.long sys_gettid
-	.long sys_readahead	/* 225 */
-	.long sys_setxattr
-	.long sys_lsetxattr
-	.long sys_fsetxattr
-	.long sys_getxattr
-	.long sys_lgetxattr	/* 230 */
-	.long sys_fgetxattr
-	.long sys_listxattr
-	.long sys_llistxattr
-	.long sys_flistxattr
-	.long sys_removexattr	/* 235 */
-	.long sys_lremovexattr
-	.long sys_fremovexattr
-	.long sys_tkill
-	.long sys_sendfile64
-	.long sys_futex		/* 240 */
-	.long sys_sched_setaffinity
-	.long sys_sched_getaffinity
-	.long sys_set_thread_area
-	.long sys_get_thread_area
-	.long sys_io_setup	/* 245 */
-	.long sys_io_destroy
-	.long sys_io_getevents
-	.long sys_io_submit
-	.long sys_io_cancel
-	.long sys_fadvise64	/* 250 */
-	.long sys_ni_syscall
-	.long sys_exit_group
-	.long sys_lookup_dcookie
-	.long sys_epoll_create
-	.long sys_epoll_ctl	/* 255 */
-	.long sys_epoll_wait
- 	.long sys_remap_file_pages
- 	.long sys_set_tid_address
- 	.long sys_timer_create
- 	.long sys_timer_settime		/* 260 */
- 	.long sys_timer_gettime
- 	.long sys_timer_getoverrun
- 	.long sys_timer_delete
- 	.long sys_clock_settime
- 	.long sys_clock_gettime		/* 265 */
- 	.long sys_clock_getres
- 	.long sys_clock_nanosleep
-	.long sys_statfs64
-	.long sys_fstatfs64	
-	.long sys_tgkill	/* 270 */
-	.long sys_utimes
- 	.long sys_fadvise64_64
-	.long sys_ni_syscall	/* sys_vserver */
-	.long sys_mbind
-	.long sys_get_mempolicy
-	.long sys_set_mempolicy
-	.long sys_mq_open
-	.long sys_mq_unlink
-	.long sys_mq_timedsend
-	.long sys_mq_timedreceive	/* 280 */
-	.long sys_mq_notify
-	.long sys_mq_getsetattr
-	.long sys_ni_syscall		/* reserved for kexec */
-	.long sys_waitid
-	.long sys_ni_syscall		/* 285 */ /* available */
-	.long sys_add_key
-	.long sys_request_key
-	.long sys_keyctl
+#include "syscall_table.S"
 
 syscall_table_size=(.-sys_call_table)
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S
index d273fd746192..e966fc8c44c4 100644
--- a/arch/i386/kernel/head.S
+++ b/arch/i386/kernel/head.S
@@ -380,6 +380,7 @@ rp_sidt:
 	ALIGN
 ignore_int:
 	cld
+#ifdef CONFIG_PRINTK
 	pushl %eax
 	pushl %ecx
 	pushl %edx
@@ -400,6 +401,7 @@ ignore_int:
 	popl %edx
 	popl %ecx
 	popl %eax
+#endif
 	iret
 
 /*
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 5e0d55be5435..7a324e8b86f9 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -2175,7 +2175,6 @@ static inline void check_timer(void)
 				disable_8259A_irq(0);
 				setup_nmi();
 				enable_8259A_irq(0);
-				check_nmi_watchdog();
 			}
 			return;
 		}
@@ -2198,7 +2197,6 @@ static inline void check_timer(void)
 				add_pin_to_irq(0, 0, pin2);
 			if (nmi_watchdog == NMI_IO_APIC) {
 				setup_nmi();
-				check_nmi_watchdog();
 			}
 			return;
 		}
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 2f89d000f954..2c0ee9c2d020 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -102,20 +102,21 @@ int nmi_active;
 	(P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT|	\
 	 P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE)
 
-int __init check_nmi_watchdog (void)
+static int __init check_nmi_watchdog(void)
 {
 	unsigned int prev_nmi_count[NR_CPUS];
 	int cpu;
 
-	printk(KERN_INFO "testing NMI watchdog ... ");
+	if (nmi_watchdog == NMI_NONE)
+		return 0;
+
+	printk(KERN_INFO "Testing NMI watchdog ... ");
 
 	for (cpu = 0; cpu < NR_CPUS; cpu++)
 		prev_nmi_count[cpu] = per_cpu(irq_stat, cpu).__nmi_count;
 	local_irq_enable();
 	mdelay((10*1000)/nmi_hz); // wait 10 ticks
 
-	/* FIXME: Only boot CPU is online at this stage.  Check CPUs
-           as they come up. */
 	for (cpu = 0; cpu < NR_CPUS; cpu++) {
 #ifdef CONFIG_SMP
 		/* Check cpu_callin_map here because that is set
@@ -139,6 +140,8 @@ int __init check_nmi_watchdog (void)
 
 	return 0;
 }
+/* This needs to happen later in boot so counters are working */
+late_initcall(check_nmi_watchdog);
 
 static int __init setup_nmi_watchdog(char *str)
 {
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index b2203e21acb3..85bd56d44314 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -611,8 +611,8 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas
 	 * Save away %fs and %gs. No need to save %es and %ds, as
 	 * those are always kernel segments while inside the kernel.
 	 */
-	asm volatile("movl %%fs,%0":"=m" (*(int *)&prev->fs));
-	asm volatile("movl %%gs,%0":"=m" (*(int *)&prev->gs));
+	asm volatile("mov %%fs,%0":"=m" (prev->fs));
+	asm volatile("mov %%gs,%0":"=m" (prev->gs));
 
 	/*
 	 * Restore %fs and %gs if needed.
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 5606ec7a5c2b..e34f651fa13c 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -16,6 +16,7 @@
 #include <linux/security.h>
 #include <linux/audit.h>
 #include <linux/seccomp.h>
+#include <linux/signal.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -511,7 +512,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
 	case PTRACE_SYSCALL:	/* continue and stop at next (return from) syscall */
 	case PTRACE_CONT:	/* restart after signal. */
 		ret = -EIO;
-		if ((unsigned long) data > _NSIG)
+		if (!valid_signal(data))
 			break;
 		if (request == PTRACE_SYSCALL) {
 			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
@@ -543,7 +544,7 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
 
 	case PTRACE_SINGLESTEP:	/* set the trap flag. */
 		ret = -EIO;
-		if ((unsigned long) data > _NSIG)
+		if (!valid_signal(data))
 			break;
 		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 		set_singlestep(child);
diff --git a/arch/i386/kernel/reboot.c b/arch/i386/kernel/reboot.c
index 3d7e994563df..6dc27eb70ee7 100644
--- a/arch/i386/kernel/reboot.c
+++ b/arch/i386/kernel/reboot.c
@@ -13,6 +13,7 @@
 #include <asm/uaccess.h>
 #include <asm/apic.h>
 #include "mach_reboot.h"
+#include <linux/reboot_fixups.h>
 
 /*
  * Power off function, if any
@@ -348,6 +349,7 @@ void machine_restart(char * __unused)
 		/* rebooting needs to touch the page at absolute addr 0 */
 		*((unsigned short *)__va(0x472)) = reboot_mode;
 		for (;;) {
+			mach_reboot_fixups(); /* for board specific fixups */
 			mach_reboot();
 			/* That didn't work - force a triple fault.. */
 			__asm__ __volatile__("lidt %0": :"m" (no_idt));
diff --git a/arch/i386/kernel/reboot_fixups.c b/arch/i386/kernel/reboot_fixups.c
new file mode 100644
index 000000000000..1b183b378c2c
--- /dev/null
+++ b/arch/i386/kernel/reboot_fixups.c
@@ -0,0 +1,56 @@
+/*
+ * linux/arch/i386/kernel/reboot_fixups.c
+ *
+ * This is a good place to put board specific reboot fixups.
+ *
+ * List of supported fixups:
+ * geode-gx1/cs5530a - Jaya Kumar <jayalk@intworks.biz>
+ *
+ */
+
+#include <asm/delay.h>
+#include <linux/pci.h>
+
+static void cs5530a_warm_reset(struct pci_dev *dev)
+{
+	/* writing 1 to the reset control register, 0x44 causes the
+	cs5530a to perform a system warm reset */
+	pci_write_config_byte(dev, 0x44, 0x1);
+	udelay(50); /* shouldn't get here but be safe and spin-a-while */
+	return;
+}
+
+struct device_fixup {
+	unsigned int vendor;
+	unsigned int device;
+	void (*reboot_fixup)(struct pci_dev *);
+};
+
+static struct device_fixup fixups_table[] = {
+{ PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset },
+};
+
+/*
+ * we see if any fixup is available for our current hardware. if there
+ * is a fixup, we call it and we expect to never return from it. if we
+ * do return, we keep looking and then eventually fall back to the
+ * standard mach_reboot on return.
+ */
+void mach_reboot_fixups(void)
+{
+	struct device_fixup *cur;
+	struct pci_dev *dev;
+	int i;
+
+	for (i=0; i < (sizeof(fixups_table)/sizeof(fixups_table[0])); i++) {
+		cur = &(fixups_table[i]);
+		dev = pci_get_device(cur->vendor, cur->device, 0);
+		if (!dev)
+			continue;
+
+		cur->reboot_fixup(dev);
+	}
+
+	printk(KERN_WARNING "No reboot fixup found for your hardware\n");
+}
+
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index fd36d2f65f88..cbea7ac582e5 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -1089,9 +1089,6 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 		}
 	}
 
-	if (nmi_watchdog == NMI_LOCAL_APIC)
-		check_nmi_watchdog();
-
 	smpboot_setup_io_apic();
 
 	setup_boot_APIC_clock();
diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S
new file mode 100644
index 000000000000..6cd1ed311f02
--- /dev/null
+++ b/arch/i386/kernel/syscall_table.S
@@ -0,0 +1,291 @@
+.data
+ENTRY(sys_call_table)
+	.long sys_restart_syscall	/* 0 - old "setup()" system call, used for restarting */
+	.long sys_exit
+	.long sys_fork
+	.long sys_read
+	.long sys_write
+	.long sys_open		/* 5 */
+	.long sys_close
+	.long sys_waitpid
+	.long sys_creat
+	.long sys_link
+	.long sys_unlink	/* 10 */
+	.long sys_execve
+	.long sys_chdir
+	.long sys_time
+	.long sys_mknod
+	.long sys_chmod		/* 15 */
+	.long sys_lchown16
+	.long sys_ni_syscall	/* old break syscall holder */
+	.long sys_stat
+	.long sys_lseek
+	.long sys_getpid	/* 20 */
+	.long sys_mount
+	.long sys_oldumount
+	.long sys_setuid16
+	.long sys_getuid16
+	.long sys_stime		/* 25 */
+	.long sys_ptrace
+	.long sys_alarm
+	.long sys_fstat
+	.long sys_pause
+	.long sys_utime		/* 30 */
+	.long sys_ni_syscall	/* old stty syscall holder */
+	.long sys_ni_syscall	/* old gtty syscall holder */
+	.long sys_access
+	.long sys_nice
+	.long sys_ni_syscall	/* 35 - old ftime syscall holder */
+	.long sys_sync
+	.long sys_kill
+	.long sys_rename
+	.long sys_mkdir
+	.long sys_rmdir		/* 40 */
+	.long sys_dup
+	.long sys_pipe
+	.long sys_times
+	.long sys_ni_syscall	/* old prof syscall holder */
+	.long sys_brk		/* 45 */
+	.long sys_setgid16
+	.long sys_getgid16
+	.long sys_signal
+	.long sys_geteuid16
+	.long sys_getegid16	/* 50 */
+	.long sys_acct
+	.long sys_umount	/* recycled never used phys() */
+	.long sys_ni_syscall	/* old lock syscall holder */
+	.long sys_ioctl
+	.long sys_fcntl		/* 55 */
+	.long sys_ni_syscall	/* old mpx syscall holder */
+	.long sys_setpgid
+	.long sys_ni_syscall	/* old ulimit syscall holder */
+	.long sys_olduname
+	.long sys_umask		/* 60 */
+	.long sys_chroot
+	.long sys_ustat
+	.long sys_dup2
+	.long sys_getppid
+	.long sys_getpgrp	/* 65 */
+	.long sys_setsid
+	.long sys_sigaction
+	.long sys_sgetmask
+	.long sys_ssetmask
+	.long sys_setreuid16	/* 70 */
+	.long sys_setregid16
+	.long sys_sigsuspend
+	.long sys_sigpending
+	.long sys_sethostname
+	.long sys_setrlimit	/* 75 */
+	.long sys_old_getrlimit
+	.long sys_getrusage
+	.long sys_gettimeofday
+	.long sys_settimeofday
+	.long sys_getgroups16	/* 80 */
+	.long sys_setgroups16
+	.long old_select
+	.long sys_symlink
+	.long sys_lstat
+	.long sys_readlink	/* 85 */
+	.long sys_uselib
+	.long sys_swapon
+	.long sys_reboot
+	.long old_readdir
+	.long old_mmap		/* 90 */
+	.long sys_munmap
+	.long sys_truncate
+	.long sys_ftruncate
+	.long sys_fchmod
+	.long sys_fchown16	/* 95 */
+	.long sys_getpriority
+	.long sys_setpriority
+	.long sys_ni_syscall	/* old profil syscall holder */
+	.long sys_statfs
+	.long sys_fstatfs	/* 100 */
+	.long sys_ioperm
+	.long sys_socketcall
+	.long sys_syslog
+	.long sys_setitimer
+	.long sys_getitimer	/* 105 */
+	.long sys_newstat
+	.long sys_newlstat
+	.long sys_newfstat
+	.long sys_uname
+	.long sys_iopl		/* 110 */
+	.long sys_vhangup
+	.long sys_ni_syscall	/* old "idle" system call */
+	.long sys_vm86old
+	.long sys_wait4
+	.long sys_swapoff	/* 115 */
+	.long sys_sysinfo
+	.long sys_ipc
+	.long sys_fsync
+	.long sys_sigreturn
+	.long sys_clone		/* 120 */
+	.long sys_setdomainname
+	.long sys_newuname
+	.long sys_modify_ldt
+	.long sys_adjtimex
+	.long sys_mprotect	/* 125 */
+	.long sys_sigprocmask
+	.long sys_ni_syscall	/* old "create_module" */
+	.long sys_init_module
+	.long sys_delete_module
+	.long sys_ni_syscall	/* 130:	old "get_kernel_syms" */
+	.long sys_quotactl
+	.long sys_getpgid
+	.long sys_fchdir
+	.long sys_bdflush
+	.long sys_sysfs		/* 135 */
+	.long sys_personality
+	.long sys_ni_syscall	/* reserved for afs_syscall */
+	.long sys_setfsuid16
+	.long sys_setfsgid16
+	.long sys_llseek	/* 140 */
+	.long sys_getdents
+	.long sys_select
+	.long sys_flock
+	.long sys_msync
+	.long sys_readv		/* 145 */
+	.long sys_writev
+	.long sys_getsid
+	.long sys_fdatasync
+	.long sys_sysctl
+	.long sys_mlock		/* 150 */
+	.long sys_munlock
+	.long sys_mlockall
+	.long sys_munlockall
+	.long sys_sched_setparam
+	.long sys_sched_getparam   /* 155 */
+	.long sys_sched_setscheduler
+	.long sys_sched_getscheduler
+	.long sys_sched_yield
+	.long sys_sched_get_priority_max
+	.long sys_sched_get_priority_min  /* 160 */
+	.long sys_sched_rr_get_interval
+	.long sys_nanosleep
+	.long sys_mremap
+	.long sys_setresuid16
+	.long sys_getresuid16	/* 165 */
+	.long sys_vm86
+	.long sys_ni_syscall	/* Old sys_query_module */
+	.long sys_poll
+	.long sys_nfsservctl
+	.long sys_setresgid16	/* 170 */
+	.long sys_getresgid16
+	.long sys_prctl
+	.long sys_rt_sigreturn
+	.long sys_rt_sigaction
+	.long sys_rt_sigprocmask	/* 175 */
+	.long sys_rt_sigpending
+	.long sys_rt_sigtimedwait
+	.long sys_rt_sigqueueinfo
+	.long sys_rt_sigsuspend
+	.long sys_pread64	/* 180 */
+	.long sys_pwrite64
+	.long sys_chown16
+	.long sys_getcwd
+	.long sys_capget
+	.long sys_capset	/* 185 */
+	.long sys_sigaltstack
+	.long sys_sendfile
+	.long sys_ni_syscall	/* reserved for streams1 */
+	.long sys_ni_syscall	/* reserved for streams2 */
+	.long sys_vfork		/* 190 */
+	.long sys_getrlimit
+	.long sys_mmap2
+	.long sys_truncate64
+	.long sys_ftruncate64
+	.long sys_stat64	/* 195 */
+	.long sys_lstat64
+	.long sys_fstat64
+	.long sys_lchown
+	.long sys_getuid
+	.long sys_getgid	/* 200 */
+	.long sys_geteuid
+	.long sys_getegid
+	.long sys_setreuid
+	.long sys_setregid
+	.long sys_getgroups	/* 205 */
+	.long sys_setgroups
+	.long sys_fchown
+	.long sys_setresuid
+	.long sys_getresuid
+	.long sys_setresgid	/* 210 */
+	.long sys_getresgid
+	.long sys_chown
+	.long sys_setuid
+	.long sys_setgid
+	.long sys_setfsuid	/* 215 */
+	.long sys_setfsgid
+	.long sys_pivot_root
+	.long sys_mincore
+	.long sys_madvise
+	.long sys_getdents64	/* 220 */
+	.long sys_fcntl64
+	.long sys_ni_syscall	/* reserved for TUX */
+	.long sys_ni_syscall
+	.long sys_gettid
+	.long sys_readahead	/* 225 */
+	.long sys_setxattr
+	.long sys_lsetxattr
+	.long sys_fsetxattr
+	.long sys_getxattr
+	.long sys_lgetxattr	/* 230 */
+	.long sys_fgetxattr
+	.long sys_listxattr
+	.long sys_llistxattr
+	.long sys_flistxattr
+	.long sys_removexattr	/* 235 */
+	.long sys_lremovexattr
+	.long sys_fremovexattr
+	.long sys_tkill
+	.long sys_sendfile64
+	.long sys_futex		/* 240 */
+	.long sys_sched_setaffinity
+	.long sys_sched_getaffinity
+	.long sys_set_thread_area
+	.long sys_get_thread_area
+	.long sys_io_setup	/* 245 */
+	.long sys_io_destroy
+	.long sys_io_getevents
+	.long sys_io_submit
+	.long sys_io_cancel
+	.long sys_fadvise64	/* 250 */
+	.long sys_ni_syscall
+	.long sys_exit_group
+	.long sys_lookup_dcookie
+	.long sys_epoll_create
+	.long sys_epoll_ctl	/* 255 */
+	.long sys_epoll_wait
+ 	.long sys_remap_file_pages
+ 	.long sys_set_tid_address
+ 	.long sys_timer_create
+ 	.long sys_timer_settime		/* 260 */
+ 	.long sys_timer_gettime
+ 	.long sys_timer_getoverrun
+ 	.long sys_timer_delete
+ 	.long sys_clock_settime
+ 	.long sys_clock_gettime		/* 265 */
+ 	.long sys_clock_getres
+ 	.long sys_clock_nanosleep
+	.long sys_statfs64
+	.long sys_fstatfs64
+	.long sys_tgkill	/* 270 */
+	.long sys_utimes
+ 	.long sys_fadvise64_64
+	.long sys_ni_syscall	/* sys_vserver */
+	.long sys_mbind
+	.long sys_get_mempolicy
+	.long sys_set_mempolicy
+	.long sys_mq_open
+	.long sys_mq_unlink
+	.long sys_mq_timedsend
+	.long sys_mq_timedreceive	/* 280 */
+	.long sys_mq_notify
+	.long sys_mq_getsetattr
+	.long sys_ni_syscall		/* reserved for kexec */
+	.long sys_waitid
+	.long sys_ni_syscall		/* 285 */ /* available */
+	.long sys_add_key
+	.long sys_request_key
+	.long sys_keyctl
diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c
index 4d75b373f90e..a0dcb7c87c30 100644
--- a/arch/i386/kernel/time.c
+++ b/arch/i386/kernel/time.c
@@ -441,7 +441,7 @@ static void __init hpet_time_init(void)
 	set_normalized_timespec(&wall_to_monotonic,
 		-xtime.tv_sec, -xtime.tv_nsec);
 
-	if (hpet_enable() >= 0) {
+	if ((hpet_enable() >= 0) && hpet_use_timer) {
 		printk("Using HPET for base-timer\n");
 	}
 
diff --git a/arch/i386/kernel/time_hpet.c b/arch/i386/kernel/time_hpet.c
index 244a31b04be7..10a0cbb88e75 100644
--- a/arch/i386/kernel/time_hpet.c
+++ b/arch/i386/kernel/time_hpet.c
@@ -26,6 +26,7 @@
 static unsigned long hpet_period;	/* fsecs / HPET clock */
 unsigned long hpet_tick;		/* hpet clks count per tick */
 unsigned long hpet_address;		/* hpet memory map physical address */
+int hpet_use_timer;
 
 static int use_hpet; 		/* can be used for runtime check of hpet */
 static int boot_hpet_disable; 	/* boottime override for HPET timer */
@@ -73,27 +74,30 @@ static int hpet_timer_stop_set_go(unsigned long tick)
 	hpet_writel(0, HPET_COUNTER);
 	hpet_writel(0, HPET_COUNTER + 4);
 
-	/*
-	 * Set up timer 0, as periodic with first interrupt to happen at
-	 * hpet_tick, and period also hpet_tick.
-	 */
-	cfg = hpet_readl(HPET_T0_CFG);
-	cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
-	       HPET_TN_SETVAL | HPET_TN_32BIT;
-	hpet_writel(cfg, HPET_T0_CFG);
-
-	/*
-	 * The first write after writing TN_SETVAL to the config register sets
-	 * the counter value, the second write sets the threshold.
-	 */
-	hpet_writel(tick, HPET_T0_CMP);
-	hpet_writel(tick, HPET_T0_CMP);
+	if (hpet_use_timer) {
+		/*
+		 * Set up timer 0, as periodic with first interrupt to happen at
+		 * hpet_tick, and period also hpet_tick.
+		 */
+		cfg = hpet_readl(HPET_T0_CFG);
+		cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
+		       HPET_TN_SETVAL | HPET_TN_32BIT;
+		hpet_writel(cfg, HPET_T0_CFG);
 
+		/*
+		 * The first write after writing TN_SETVAL to the config register sets
+		 * the counter value, the second write sets the threshold.
+		 */
+		hpet_writel(tick, HPET_T0_CMP);
+		hpet_writel(tick, HPET_T0_CMP);
+	}
 	/*
  	 * Go!
  	 */
 	cfg = hpet_readl(HPET_CFG);
-	cfg |= HPET_CFG_ENABLE | HPET_CFG_LEGACY;
+	if (hpet_use_timer)
+		cfg |= HPET_CFG_LEGACY;
+	cfg |= HPET_CFG_ENABLE;
 	hpet_writel(cfg, HPET_CFG);
 
 	return 0;
@@ -128,12 +132,11 @@ int __init hpet_enable(void)
 	 * However, we can do with one timer otherwise using the
 	 * the single HPET timer for system time.
 	 */
-	if (
 #ifdef CONFIG_HPET_EMULATE_RTC
-		!(id & HPET_ID_NUMBER) ||
-#endif
-	    !(id & HPET_ID_LEGSUP))
+	if (!(id & HPET_ID_NUMBER))
 		return -1;
+#endif
+
 
 	hpet_period = hpet_readl(HPET_PERIOD);
 	if ((hpet_period < HPET_MIN_PERIOD) || (hpet_period > HPET_MAX_PERIOD))
@@ -152,6 +155,8 @@ int __init hpet_enable(void)
 	if (hpet_tick_rem > (hpet_period >> 1))
 		hpet_tick++; /* rounding the result */
 
+	hpet_use_timer = id & HPET_ID_LEGSUP;
+
 	if (hpet_timer_stop_set_go(hpet_tick))
 		return -1;
 
@@ -202,7 +207,8 @@ int __init hpet_enable(void)
 #endif
 
 #ifdef CONFIG_X86_LOCAL_APIC
-	wait_timer_tick = wait_hpet_tick;
+	if (hpet_use_timer)
+		wait_timer_tick = wait_hpet_tick;
 #endif
 	return 0;
 }
diff --git a/arch/i386/kernel/timers/timer_hpet.c b/arch/i386/kernel/timers/timer_hpet.c
index 713134e71844..f778f471a09a 100644
--- a/arch/i386/kernel/timers/timer_hpet.c
+++ b/arch/i386/kernel/timers/timer_hpet.c
@@ -79,7 +79,7 @@ static unsigned long get_offset_hpet(void)
 
 	eax = hpet_readl(HPET_COUNTER);
 	eax -= hpet_last;	/* hpet delta */
-
+	eax = min(hpet_tick, eax);
 	/*
          * Time offset = (hpet delta) * ( usecs per HPET clock )
 	 *             = (hpet delta) * ( usecs per tick / HPET clocks per tick)
@@ -105,9 +105,12 @@ static void mark_offset_hpet(void)
 	last_offset = ((unsigned long long)last_tsc_high<<32)|last_tsc_low;
 	rdtsc(last_tsc_low, last_tsc_high);
 
-	offset = hpet_readl(HPET_T0_CMP) - hpet_tick;
-	if (unlikely(((offset - hpet_last) > hpet_tick) && (hpet_last != 0))) {
-		int lost_ticks = (offset - hpet_last) / hpet_tick;
+	if (hpet_use_timer)
+		offset = hpet_readl(HPET_T0_CMP) - hpet_tick;
+	else
+		offset = hpet_readl(HPET_COUNTER);
+	if (unlikely(((offset - hpet_last) >= (2*hpet_tick)) && (hpet_last != 0))) {
+		int lost_ticks = ((offset - hpet_last) / hpet_tick) - 1;
 		jiffies_64 += lost_ticks;
 	}
 	hpet_last = offset;
diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c
index a685994e5c8e..7926d967be00 100644
--- a/arch/i386/kernel/timers/timer_tsc.c
+++ b/arch/i386/kernel/timers/timer_tsc.c
@@ -477,7 +477,7 @@ static int __init init_tsc(char* override)
 	if (cpu_has_tsc) {
 		unsigned long tsc_quotient;
 #ifdef CONFIG_HPET_TIMER
-		if (is_hpet_enabled()){
+		if (is_hpet_enabled() && hpet_use_timer) {
 			unsigned long result, remain;
 			printk("Using TSC for gettimeofday\n");
 			tsc_quotient = calibrate_tsc_hpet(NULL);
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 6c0e383915b6..00c63419c06f 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -451,6 +451,7 @@ DO_ERROR(10, SIGSEGV, "invalid TSS", invalid_TSS)
 DO_ERROR(11, SIGBUS,  "segment not present", segment_not_present)
 DO_ERROR(12, SIGBUS,  "stack segment", stack_segment)
 DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0)
+DO_ERROR_INFO(32, SIGSEGV, "iret exception", iret_error, ILL_BADSTK, 0)
 
 fastcall void do_general_protection(struct pt_regs * regs, long error_code)
 {
@@ -642,16 +643,15 @@ void unset_nmi_callback(void)
 }
 
 #ifdef CONFIG_KPROBES
-fastcall int do_int3(struct pt_regs *regs, long error_code)
+fastcall void do_int3(struct pt_regs *regs, long error_code)
 {
 	if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP)
 			== NOTIFY_STOP)
-		return 1;
+		return;
 	/* This is an interrupt gate, because kprobes wants interrupts
 	disabled.  Normal trap handlers don't. */
 	restore_interrupts(regs);
 	do_trap(3, SIGTRAP, "int3", 1, regs, error_code, NULL);
-	return 0;
 }
 #endif
 
diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c
index 2f3d52dacff7..ec0f68ce6886 100644
--- a/arch/i386/kernel/vm86.c
+++ b/arch/i386/kernel/vm86.c
@@ -222,7 +222,7 @@ asmlinkage int sys_vm86(struct pt_regs regs)
 			goto out;
 		case VM86_PLUS_INSTALL_CHECK:
 			/* NOTE: on old vm86 stuff this will return the error
-			   from verify_area(), because the subfunction is
+			   from access_ok(), because the subfunction is
 			   interpreted as (invalid) address to vm86_struct.
 			   So the installation check works.
 			 */
@@ -294,8 +294,8 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
  */
 	info->regs32->eax = 0;
 	tsk->thread.saved_esp0 = tsk->thread.esp0;
-	asm volatile("movl %%fs,%0":"=m" (tsk->thread.saved_fs));
-	asm volatile("movl %%gs,%0":"=m" (tsk->thread.saved_gs));
+	asm volatile("mov %%fs,%0":"=m" (tsk->thread.saved_fs));
+	asm volatile("mov %%gs,%0":"=m" (tsk->thread.saved_gs));
 
 	tss = &per_cpu(init_tss, get_cpu());
 	tsk->thread.esp0 = (unsigned long) &info->VM86_TSS_ESP0;
@@ -717,12 +717,12 @@ static irqreturn_t irq_handler(int intno, void *dev_id, struct pt_regs * regs)
 	irqbits |= irq_bit;
 	if (vm86_irqs[intno].sig)
 		send_sig(vm86_irqs[intno].sig, vm86_irqs[intno].tsk, 1);
-	spin_unlock_irqrestore(&irqbits_lock, flags);
 	/*
 	 * IRQ will be re-enabled when user asks for the irq (whether
 	 * polling or as a result of the signal)
 	 */
-	disable_irq(intno);
+	disable_irq_nosync(intno);
+	spin_unlock_irqrestore(&irqbits_lock, flags);
 	return IRQ_HANDLED;
 
 out:
@@ -754,17 +754,20 @@ static inline int get_and_reset_irq(int irqnumber)
 {
 	int bit;
 	unsigned long flags;
+	int ret = 0;
 	
 	if (invalid_vm86_irq(irqnumber)) return 0;
 	if (vm86_irqs[irqnumber].tsk != current) return 0;
 	spin_lock_irqsave(&irqbits_lock, flags);	
 	bit = irqbits & (1 << irqnumber);
 	irqbits &= ~bit;
+	if (bit) {
+		enable_irq(irqnumber);
+		ret = 1;
+	}
+
 	spin_unlock_irqrestore(&irqbits_lock, flags);	
-	if (!bit)
-		return 0;
-	enable_irq(irqnumber);
-	return 1;
+	return ret;
 }