Merge branch 'master' of /usr/src/ntfs-2.6/

Documentation/RCU/torture.txt

@@ -0,0 +1,122 @@
+RCU Torture Test Operation
+
+
+CONFIG_RCU_TORTURE_TEST
+
+The CONFIG_RCU_TORTURE_TEST config option is available for all RCU
+implementations.  It creates an rcutorture kernel module that can
+be loaded to run a torture test.  The test periodically outputs
+status messages via printk(), which can be examined via the dmesg
+command (perhaps grepping for "rcutorture").  The test is started
+when the module is loaded, and stops when the module is unloaded.
+
+However, actually setting this config option to "y" results in the system
+running the test immediately upon boot, and ending only when the system
+is taken down.  Normally, one will instead want to build the system
+with CONFIG_RCU_TORTURE_TEST=m and to use modprobe and rmmod to control
+the test, perhaps using a script similar to the one shown at the end of
+this document.  Note that you will need CONFIG_MODULE_UNLOAD in order
+to be able to end the test.
+
+
+MODULE PARAMETERS
+
+This module has the following parameters:
+
+nreaders	This is the number of RCU reading threads supported.
+		The default is twice the number of CPUs.  Why twice?
+		To properly exercise RCU implementations with preemptible
+		read-side critical sections.
+
+stat_interval	The number of seconds between output of torture
+		statistics (via printk()).  Regardless of the interval,
+		statistics are printed when the module is unloaded.
+		Setting the interval to zero causes the statistics to
+		be printed -only- when the module is unloaded, and this
+		is the default.
+
+verbose		Enable debug printk()s.  Default is disabled.
+
+
+OUTPUT
+
+The statistics output is as follows:
+
+	rcutorture: --- Start of test: nreaders=16 stat_interval=0 verbose=0
+	rcutorture: rtc: 0000000000000000 ver: 1916 tfle: 0 rta: 1916 rtaf: 0 rtf: 1915
+	rcutorture: Reader Pipe:  1466408 9747 0 0 0 0 0 0 0 0 0
+	rcutorture: Reader Batch:  1464477 11678 0 0 0 0 0 0 0 0
+	rcutorture: Free-Block Circulation:  1915 1915 1915 1915 1915 1915 1915 1915 1915 1915 0
+	rcutorture: --- End of test
+
+The command "dmesg | grep rcutorture:" will extract this information on
+most systems.  On more esoteric configurations, it may be necessary to
+use other commands to access the output of the printk()s used by
+the RCU torture test.  The printk()s use KERN_ALERT, so they should
+be evident.  ;-)
+
+The entries are as follows:
+
+o	"ggp": The number of counter flips (or batches) since boot.
+
+o	"rtc": The hexadecimal address of the structure currently visible
+	to readers.
+
+o	"ver": The number of times since boot that the rcutw writer task
+	has changed the structure visible to readers.
+
+o	"tfle": If non-zero, indicates that the "torture freelist"
+	containing structure to be placed into the "rtc" area is empty.
+	This condition is important, since it can fool you into thinking
+	that RCU is working when it is not.  :-/
+
+o	"rta": Number of structures allocated from the torture freelist.
+
+o	"rtaf": Number of allocations from the torture freelist that have
+	failed due to the list being empty.
+
+o	"rtf": Number of frees into the torture freelist.
+
+o	"Reader Pipe": Histogram of "ages" of structures seen by readers.
+	If any entries past the first two are non-zero, RCU is broken.
+	And rcutorture prints the error flag string "!!!" to make sure
+	you notice.  The age of a newly allocated structure is zero,
+	it becomes one when removed from reader visibility, and is
+	incremented once per grace period subsequently -- and is freed
+	after passing through (RCU_TORTURE_PIPE_LEN-2) grace periods.
+
+	The output displayed above was taken from a correctly working
+	RCU.  If you want to see what it looks like when broken, break
+	it yourself.  ;-)
+
+o	"Reader Batch": Another histogram of "ages" of structures seen
+	by readers, but in terms of counter flips (or batches) rather
+	than in terms of grace periods.  The legal number of non-zero
+	entries is again two.  The reason for this separate view is
+	that it is easier to get the third entry to show up in the
+	"Reader Batch" list than in the "Reader Pipe" list.
+
+o	"Free-Block Circulation": Shows the number of torture structures
+	that have reached a given point in the pipeline.  The first element
+	should closely correspond to the number of structures allocated,
+	the second to the number that have been removed from reader view,
+	and all but the last remaining to the corresponding number of
+	passes through a grace period.  The last entry should be zero,
+	as it is only incremented if a torture structure's counter
+	somehow gets incremented farther than it should.
+
+
+USAGE
+
+The following script may be used to torture RCU:
+
+	#!/bin/sh
+
+	modprobe rcutorture
+	sleep 100
+	rmmod rcutorture
+	dmesg | grep rcutorture:
+
+The output can be manually inspected for the error flag of "!!!".
+One could of course create a more elaborate script that automatically
+checked for such errors.

Documentation/cpusets.txt

@@ -94,7 +94,7 @@ the available CPU and Memory resources amongst the requesting tasks.
 But larger systems, which benefit more from careful processor and
 memory placement to reduce memory access times and contention,
 and which typically represent a larger investment for the customer,
-can benefit from explictly placing jobs on properly sized subsets of
+can benefit from explicitly placing jobs on properly sized subsets of
 the system.
 
 This can be especially valuable on:

Documentation/firmware_class/firmware_sample_driver.c

@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/string.h>
 
 #include "linux/firmware.h"
 

Documentation/firmware_class/firmware_sample_firmware_class.c

@@ -14,6 +14,8 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/timer.h>
+#include <linux/slab.h>
+#include <linux/string.h>
 #include <linux/firmware.h>
 
 

Documentation/i2c/writing-clients

@@ -273,6 +273,7 @@ For now, you can ignore the `flags' parameter. It is there for future use.
     if (is_isa) {
 
       /* Discard immediately if this ISA range is already used */
+      /* FIXME: never use check_region(), only request_region() */
       if (check_region(address,FOO_EXTENT))
         goto ERROR0;
 

Documentation/keys.txt

@@ -196,7 +196,7 @@ KEY ACCESS PERMISSIONS
 
 Keys have an owner user ID, a group access ID, and a permissions mask. The mask
 has up to eight bits each for possessor, user, group and other access. Only
-five of each set of eight bits are defined. These permissions granted are:
+six of each set of eight bits are defined. These permissions granted are:
 
  (*) View
 
@@ -224,6 +224,10 @@ five of each set of eight bits are defined. These permissions granted are:
      keyring to a key, a process must have Write permission on the keyring and
      Link permission on the key.
 
+ (*) Set Attribute
+
+     This permits a key's UID, GID and permissions mask to be changed.
+
 For changing the ownership, group ID or permissions mask, being the owner of
 the key or having the sysadmin capability is sufficient.
 
@@ -242,15 +246,15 @@ about the status of the key service:
      this way:
 
 	SERIAL   FLAGS  USAGE EXPY PERM     UID   GID   TYPE      DESCRIPTION: SUMMARY
-	00000001 I-----    39 perm 1f1f0000     0     0 keyring   _uid_ses.0: 1/4
-	00000002 I-----     2 perm 1f1f0000     0     0 keyring   _uid.0: empty
-	00000007 I-----     1 perm 1f1f0000     0     0 keyring   _pid.1: empty
-	0000018d I-----     1 perm 1f1f0000     0     0 keyring   _pid.412: empty
-	000004d2 I--Q--     1 perm 1f1f0000    32    -1 keyring   _uid.32: 1/4
-	000004d3 I--Q--     3 perm 1f1f0000    32    -1 keyring   _uid_ses.32: empty
+	00000001 I-----    39 perm 1f3f0000     0     0 keyring   _uid_ses.0: 1/4
+	00000002 I-----     2 perm 1f3f0000     0     0 keyring   _uid.0: empty
+	00000007 I-----     1 perm 1f3f0000     0     0 keyring   _pid.1: empty
+	0000018d I-----     1 perm 1f3f0000     0     0 keyring   _pid.412: empty
+	000004d2 I--Q--     1 perm 1f3f0000    32    -1 keyring   _uid.32: 1/4
+	000004d3 I--Q--     3 perm 1f3f0000    32    -1 keyring   _uid_ses.32: empty
 	00000892 I--QU-     1 perm 1f000000     0     0 user      metal:copper: 0
-	00000893 I--Q-N     1  35s 1f1f0000     0     0 user      metal:silver: 0
-	00000894 I--Q--     1  10h 001f0000     0     0 user      metal:gold: 0
+	00000893 I--Q-N     1  35s 1f3f0000     0     0 user      metal:silver: 0
+	00000894 I--Q--     1  10h 003f0000     0     0 user      metal:gold: 0
 
      The flags are:
 

MAINTAINERS

@@ -2286,6 +2286,11 @@ W:	http://tpmdd.sourceforge.net
 L:	tpmdd-devel@lists.sourceforge.net
 S:	Maintained
 
+Telecom Clock Driver for MCPL0010
+P: Mark Gross
+M: mark.gross@intel.com
+S: Supported
+
 TENSILICA XTENSA PORT (xtensa):
 P:	Chris Zankel
 M:	chris@zankel.net

README

@@ -54,6 +54,10 @@ INSTALLING the kernel:
 
 		gzip -cd linux-2.6.XX.tar.gz | tar xvf -
 
+   or
+		bzip2 -dc linux-2.6.XX.tar.bz2 | tar xvf -
+
+
    Replace "XX" with the version number of the latest kernel.
 
    Do NOT use the /usr/src/linux area! This area has a (usually

arch/alpha/kernel/time.c

@@ -55,10 +55,6 @@
 #include "proto.h"
 #include "irq_impl.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;	/* kernel/timer.c */
 
 static int set_rtc_mmss(unsigned long);

arch/arm/common/amba.c

@@ -10,6 +10,8 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>

arch/arm/common/dmabounce.c

@@ -33,8 +33,8 @@
 #include <asm/cacheflush.h>
 
 #undef DEBUG
-
 #undef STATS
+
 #ifdef STATS
 #define DO_STATS(X) do { X ; } while (0)
 #else
@@ -52,26 +52,31 @@ struct safe_buffer {
 	int		direction;
 
 	/* safe buffer info */
-	struct dma_pool *pool;
+	struct dmabounce_pool *pool;
 	void		*safe;
 	dma_addr_t	safe_dma_addr;
 };
 
+struct dmabounce_pool {
+	unsigned long	size;
+	struct dma_pool	*pool;
+#ifdef STATS
+	unsigned long	allocs;
+#endif
+};
+
 struct dmabounce_device_info {
 	struct list_head node;
 
 	struct device *dev;
-	struct dma_pool *small_buffer_pool;
-	struct dma_pool *large_buffer_pool;
 	struct list_head safe_buffers;
-	unsigned long small_buffer_size, large_buffer_size;
 #ifdef STATS
-	unsigned long sbp_allocs;
-	unsigned long lbp_allocs;
 	unsigned long total_allocs;
 	unsigned long map_op_count;
 	unsigned long bounce_count;
 #endif
+	struct dmabounce_pool	small;
+	struct dmabounce_pool	large;
 };
 
 static LIST_HEAD(dmabounce_devs);
@@ -82,9 +87,9 @@ static void print_alloc_stats(struct dmabounce_device_info *device_info)
 	printk(KERN_INFO
 		"%s: dmabounce: sbp: %lu, lbp: %lu, other: %lu, total: %lu\n",
 		device_info->dev->bus_id,
-		device_info->sbp_allocs, device_info->lbp_allocs,
-		device_info->total_allocs - device_info->sbp_allocs -
-			device_info->lbp_allocs,
+		device_info->small.allocs, device_info->large.allocs,
+		device_info->total_allocs - device_info->small.allocs -
+			device_info->large.allocs,
 		device_info->total_allocs);
 }
 #endif
@@ -106,18 +111,22 @@ find_dmabounce_dev(struct device *dev)
 /* allocate a 'safe' buffer and keep track of it */
 static inline struct safe_buffer *
 alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
-			size_t size, enum dma_data_direction dir)
+		  size_t size, enum dma_data_direction dir)
 {
 	struct safe_buffer *buf;
-	struct dma_pool *pool;
+	struct dmabounce_pool *pool;
 	struct device *dev = device_info->dev;
-	void *safe;
-	dma_addr_t safe_dma_addr;
 
 	dev_dbg(dev, "%s(ptr=%p, size=%d, dir=%d)\n",
 		__func__, ptr, size, dir);
 
-	DO_STATS ( device_info->total_allocs++ );
+	if (size <= device_info->small.size) {
+		pool = &device_info->small;
+	} else if (size <= device_info->large.size) {
+		pool = &device_info->large;
+	} else {
+		pool = NULL;
+	}
 
 	buf = kmalloc(sizeof(struct safe_buffer), GFP_ATOMIC);
 	if (buf == NULL) {
@@ -125,41 +134,35 @@ alloc_safe_buffer(struct dmabounce_device_info *device_info, void *ptr,
 		return NULL;
 	}
 
-	if (size <= device_info->small_buffer_size) {
-		pool = device_info->small_buffer_pool;
-		safe = dma_pool_alloc(pool, GFP_ATOMIC, &safe_dma_addr);
-
-		DO_STATS ( device_info->sbp_allocs++ );
-	} else if (size <= device_info->large_buffer_size) {
-		pool = device_info->large_buffer_pool;
-		safe = dma_pool_alloc(pool, GFP_ATOMIC, &safe_dma_addr);
+	buf->ptr = ptr;
+	buf->size = size;
+	buf->direction = dir;
+	buf->pool = pool;
 
-		DO_STATS ( device_info->lbp_allocs++ );
+	if (pool) {
+		buf->safe = dma_pool_alloc(pool->pool, GFP_ATOMIC,
+					   &buf->safe_dma_addr);
 	} else {
-		pool = NULL;
-		safe = dma_alloc_coherent(dev, size, &safe_dma_addr, GFP_ATOMIC);
+		buf->safe = dma_alloc_coherent(dev, size, &buf->safe_dma_addr,
+					       GFP_ATOMIC);
 	}
 
-	if (safe == NULL) {
-		dev_warn(device_info->dev,
-			"%s: could not alloc dma memory (size=%d)\n",
-		       __func__, size);
+	if (buf->safe == NULL) {
+		dev_warn(dev,
+			 "%s: could not alloc dma memory (size=%d)\n",
+			 __func__, size);
 		kfree(buf);
 		return NULL;
 	}
 
 #ifdef STATS
+	if (pool)
+		pool->allocs++;
+	device_info->total_allocs++;
 	if (device_info->total_allocs % 1000 == 0)
 		print_alloc_stats(device_info);
 #endif
 
-	buf->ptr = ptr;
-	buf->size = size;
-	buf->direction = dir;
-	buf->pool = pool;
-	buf->safe = safe;
-	buf->safe_dma_addr = safe_dma_addr;
-
 	list_add(&buf->node, &device_info->safe_buffers);
 
 	return buf;
@@ -186,7 +189,7 @@ free_safe_buffer(struct dmabounce_device_info *device_info, struct safe_buffer *
 	list_del(&buf->node);
 
 	if (buf->pool)
-		dma_pool_free(buf->pool, buf->safe, buf->safe_dma_addr);
+		dma_pool_free(buf->pool->pool, buf->safe, buf->safe_dma_addr);
 	else
 		dma_free_coherent(device_info->dev, buf->size, buf->safe,
 				    buf->safe_dma_addr);
@@ -197,12 +200,10 @@ free_safe_buffer(struct dmabounce_device_info *device_info, struct safe_buffer *
 /* ************************************************** */
 
 #ifdef STATS
-
 static void print_map_stats(struct dmabounce_device_info *device_info)
 {
-	printk(KERN_INFO
-		"%s: dmabounce: map_op_count=%lu, bounce_count=%lu\n",
-		device_info->dev->bus_id,
+	dev_info(device_info->dev,
+		"dmabounce: map_op_count=%lu, bounce_count=%lu\n",
 		device_info->map_op_count, device_info->bounce_count);
 }
 #endif
@@ -258,13 +259,13 @@ map_single(struct device *dev, void *ptr, size_t size,
 				__func__, ptr, buf->safe, size);
 			memcpy(buf->safe, ptr, size);
 		}
-		consistent_sync(buf->safe, size, dir);
+		ptr = buf->safe;
 
 		dma_addr = buf->safe_dma_addr;
-	} else {
-		consistent_sync(ptr, size, dir);
 	}
 
+	consistent_sync(ptr, size, dir);
+
 	return dma_addr;
 }
 
@@ -278,7 +279,7 @@ unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
 	/*
 	 * Trying to unmap an invalid mapping
 	 */
-	if (dma_addr == ~0) {
+	if (dma_mapping_error(dma_addr)) {
 		dev_err(dev, "Trying to unmap invalid mapping\n");
 		return;
 	}
@@ -570,11 +571,25 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
 	local_irq_restore(flags);
 }
 
+static int
+dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev, const char *name,
+		    unsigned long size)
+{
+	pool->size = size;
+	DO_STATS(pool->allocs = 0);
+	pool->pool = dma_pool_create(name, dev, size,
+				     0 /* byte alignment */,
+				     0 /* no page-crossing issues */);
+
+	return pool->pool ? 0 : -ENOMEM;
+}
+
 int
 dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
 			unsigned long large_buffer_size)
 {
 	struct dmabounce_device_info *device_info;
+	int ret;
 
 	device_info = kmalloc(sizeof(struct dmabounce_device_info), GFP_ATOMIC);
 	if (!device_info) {
@@ -584,45 +599,31 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
 		return -ENOMEM;
 	}
 
-	device_info->small_buffer_pool =
-		dma_pool_create("small_dmabounce_pool",
-				dev,
-				small_buffer_size,
-				0 /* byte alignment */,
-				0 /* no page-crossing issues */);
-	if (!device_info->small_buffer_pool) {
-		printk(KERN_ERR
-			"dmabounce: could not allocate small DMA pool for %s\n",
-			dev->bus_id);
-		kfree(device_info);
-		return -ENOMEM;
+	ret = dmabounce_init_pool(&device_info->small, dev,
+				  "small_dmabounce_pool", small_buffer_size);
+	if (ret) {
+		dev_err(dev,
+			"dmabounce: could not allocate DMA pool for %ld byte objects\n",
+			small_buffer_size);
+		goto err_free;
 	}
 
 	if (large_buffer_size) {
-		device_info->large_buffer_pool =
-			dma_pool_create("large_dmabounce_pool",
-					dev,
-					large_buffer_size,
-					0 /* byte alignment */,
-					0 /* no page-crossing issues */);
-		if (!device_info->large_buffer_pool) {
-		printk(KERN_ERR
-			"dmabounce: could not allocate large DMA pool for %s\n",
-			dev->bus_id);
-			dma_pool_destroy(device_info->small_buffer_pool);
-
-			return -ENOMEM;
+		ret = dmabounce_init_pool(&device_info->large, dev,
+					  "large_dmabounce_pool",
+					  large_buffer_size);
+		if (ret) {
+			dev_err(dev,
+				"dmabounce: could not allocate DMA pool for %ld byte objects\n",
+				large_buffer_size);
+			goto err_destroy;
 		}
 	}
 
 	device_info->dev = dev;
-	device_info->small_buffer_size = small_buffer_size;
-	device_info->large_buffer_size = large_buffer_size;
 	INIT_LIST_HEAD(&device_info->safe_buffers);
 
 #ifdef STATS
-	device_info->sbp_allocs = 0;
-	device_info->lbp_allocs = 0;
 	device_info->total_allocs = 0;
 	device_info->map_op_count = 0;
 	device_info->bounce_count = 0;
@@ -634,6 +635,12 @@ dmabounce_register_dev(struct device *dev, unsigned long small_buffer_size,
 		dev->bus_id, dev->bus->name);
 
 	return 0;
+
+ err_destroy:
+	dma_pool_destroy(device_info->small.pool);
+ err_free:
+	kfree(device_info);
+	return ret;
 }
 
 void
@@ -655,10 +662,10 @@ dmabounce_unregister_dev(struct device *dev)
 		BUG();
 	}
 
-	if (device_info->small_buffer_pool)
-		dma_pool_destroy(device_info->small_buffer_pool);
-	if (device_info->large_buffer_pool)
-		dma_pool_destroy(device_info->large_buffer_pool);
+	if (device_info->small.pool)
+		dma_pool_destroy(device_info->small.pool);
+	if (device_info->large.pool)
+		dma_pool_destroy(device_info->large.pool);
 
 #ifdef STATS
 	print_alloc_stats(device_info);

arch/arm/common/scoop.c

@@ -12,6 +12,9 @@
  */
 
 #include <linux/device.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
 #include <asm/io.h>
 #include <asm/hardware/scoop.h>
 

arch/arm/configs/ixdp2400_defconfig

@@ -559,7 +559,7 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 #
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=2
+CONFIG_SERIAL_8250_NR_UARTS=1
 # CONFIG_SERIAL_8250_EXTENDED is not set
 
 #

arch/arm/configs/ixdp2800_defconfig

@@ -559,7 +559,7 @@ CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
 #
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=2
+CONFIG_SERIAL_8250_NR_UARTS=1
 # CONFIG_SERIAL_8250_EXTENDED is not set
 
 #

arch/arm/kernel/arthur.c

@@ -18,6 +18,7 @@
 #include <linux/stddef.h>
 #include <linux/signal.h>
 #include <linux/init.h>
+#include <linux/sched.h>
 
 #include <asm/ptrace.h>
 

arch/arm/kernel/ptrace.c

@@ -782,7 +782,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat
 	return ret;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;

arch/arm/kernel/time.c

@@ -36,10 +36,6 @@
 #include <asm/thread_info.h>
 #include <asm/mach/time.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /*
  * Our system timer.
  */

arch/arm/kernel/traps.c

@@ -198,25 +198,16 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
 	barrier();
 }
 
-DEFINE_SPINLOCK(die_lock);
-
-/*
- * This function is protected against re-entrancy.
- */
-NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
+static void __die(const char *str, int err, struct thread_info *thread, struct pt_regs *regs)
 {
-	struct task_struct *tsk = current;
+	struct task_struct *tsk = thread->task;
 	static int die_counter;
 
-	console_verbose();
-	spin_lock_irq(&die_lock);
-	bust_spinlocks(1);
-
 	printk("Internal error: %s: %x [#%d]\n", str, err, ++die_counter);
 	print_modules();
 	__show_regs(regs);
 	printk("Process %s (pid: %d, stack limit = 0x%p)\n",
-		tsk->comm, tsk->pid, tsk->thread_info + 1);
+		tsk->comm, tsk->pid, thread + 1);
 
 	if (!user_mode(regs) || in_interrupt()) {
 		dump_mem("Stack: ", regs->ARM_sp,
@@ -224,7 +215,21 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
 		dump_backtrace(regs, tsk);
 		dump_instr(regs);
 	}
+}
 
+DEFINE_SPINLOCK(die_lock);
+
+/*
+ * This function is protected against re-entrancy.
+ */
+NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
+{
+	struct thread_info *thread = current_thread_info();
+
+	console_verbose();
+	spin_lock_irq(&die_lock);
+	bust_spinlocks(1);
+	__die(str, err, thread, regs);
 	bust_spinlocks(0);
 	spin_unlock_irq(&die_lock);
 	do_exit(SIGSEGV);

arch/arm/lib/ashldi3.S

@@ -0,0 +1,48 @@
+/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
+   Free Software Foundation, Inc.
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING.  If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define al r1
+#define ah r0
+#else
+#define al r0
+#define ah r1
+#endif
+
+ENTRY(__ashldi3)
+
+	subs	r3, r2, #32
+	rsb	ip, r2, #32
+	movmi	ah, ah, lsl r2
+	movpl	ah, al, lsl r3
+	orrmi	ah, ah, al, lsr ip
+	mov	al, al, lsl r2
+	mov	pc, lr
+

arch/arm/lib/ashldi3.c

@@ -1,56 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton	29/07/01 */
-
-#include "gcclib.h"
-
-s64 __ashldi3(s64 u, int b)
-{
-	DIunion w;
-	int bm;
-	DIunion uu;
-
-	if (b == 0)
-		return u;
-
-	uu.ll = u;
-
-	bm = (sizeof(s32) * BITS_PER_UNIT) - b;
-	if (bm <= 0) {
-		w.s.low = 0;
-		w.s.high = (u32) uu.s.low << -bm;
-	} else {
-		u32 carries = (u32) uu.s.low >> bm;
-		w.s.low = (u32) uu.s.low << b;
-		w.s.high = ((u32) uu.s.high << b) | carries;
-	}
-
-	return w.ll;
-}

arch/arm/lib/ashrdi3.S

@@ -0,0 +1,48 @@
+/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
+   Free Software Foundation, Inc.
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING.  If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define al r1
+#define ah r0
+#else
+#define al r0
+#define ah r1
+#endif
+
+ENTRY(__ashrdi3)
+
+	subs	r3, r2, #32
+	rsb	ip, r2, #32
+	movmi	al, al, lsr r2
+	movpl	al, ah, asr r3
+	orrmi	al, al, ah, lsl ip
+	mov	ah, ah, asr r2
+	mov	pc, lr
+

arch/arm/lib/ashrdi3.c

@@ -1,57 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-s64 __ashrdi3(s64 u, int b)
-{
-	DIunion w;
-	int bm;
-	DIunion uu;
-
-	if (b == 0)
-		return u;
-
-	uu.ll = u;
-
-	bm = (sizeof(s32) * BITS_PER_UNIT) - b;
-	if (bm <= 0) {
-		/* w.s.high = 1..1 or 0..0 */
-		w.s.high = uu.s.high >> (sizeof(s32) * BITS_PER_UNIT - 1);
-		w.s.low = uu.s.high >> -bm;
-	} else {
-		u32 carries = (u32) uu.s.high << bm;
-		w.s.high = uu.s.high >> b;
-		w.s.low = ((u32) uu.s.low >> b) | carries;
-	}
-
-	return w.ll;
-}

arch/arm/lib/gcclib.h

@@ -1,22 +0,0 @@
-/* gcclib.h -- definitions for various functions 'borrowed' from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include <linux/types.h>
-
-#define BITS_PER_UNIT	8
-#define SI_TYPE_SIZE	(sizeof(s32) * BITS_PER_UNIT)
-
-#ifdef __ARMEB__
-struct DIstruct {
-	s32 high, low;
-};
-#else
-struct DIstruct {
-	s32 low, high;
-};
-#endif
-
-typedef union {
-	struct DIstruct s;
-	s64 ll;
-} DIunion;

arch/arm/lib/lshrdi3.S

@@ -0,0 +1,48 @@
+/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
+   Free Software Foundation, Inc.
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING.  If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define al r1
+#define ah r0
+#else
+#define al r0
+#define ah r1
+#endif
+
+ENTRY(__lshrdi3)
+
+	subs	r3, r2, #32
+	rsb	ip, r2, #32
+	movmi	al, al, lsr r2
+	movpl	al, ah, lsr r3
+	orrmi	al, al, ah, lsl ip
+	mov	ah, ah, lsr r2
+	mov	pc, lr
+

arch/arm/lib/lshrdi3.c

@@ -1,56 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-s64 __lshrdi3(s64 u, int b)
-{
-	DIunion w;
-	int bm;
-	DIunion uu;
-
-	if (b == 0)
-		return u;
-
-	uu.ll = u;
-
-	bm = (sizeof(s32) * BITS_PER_UNIT) - b;
-	if (bm <= 0) {
-		w.s.high = 0;
-		w.s.low = (u32) uu.s.high >> -bm;
-	} else {
-		u32 carries = (u32) uu.s.high << bm;
-		w.s.high = (u32) uu.s.high >> b;
-		w.s.low = ((u32) uu.s.low >> b) | carries;
-	}
-
-	return w.ll;
-}

arch/arm/lib/muldi3.S

@@ -0,0 +1,44 @@
+/*
+ *  linux/arch/arm/lib/muldi3.S
+ *
+ *  Author:     Nicolas Pitre
+ *  Created:    Oct 19, 2005
+ *  Copyright:  Monta Vista Software, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define xh r0
+#define xl r1
+#define yh r2
+#define yl r3
+#else
+#define xl r0
+#define xh r1
+#define yl r2
+#define yh r3
+#endif
+
+ENTRY(__muldi3)
+
+	mul	xh, yl, xh
+	mla	xh, xl, yh, xh
+	mov	ip, xl, asr #16
+	mov	yh, yl, asr #16
+	bic	xl, xl, ip, lsl #16
+	bic	yl, yl, yh, lsl #16
+	mla	xh, yh, ip, xh
+	mul	yh, xl, yh
+	mul	xl, yl, xl
+	mul	ip, yl, ip
+	adds	xl, xl, yh, lsl #16
+	adc	xh, xh, yh, lsr #16
+	adds	xl, xl, ip, lsl #16
+	adc	xh, xh, ip, lsr #16
+	mov	pc, lr
+

arch/arm/lib/muldi3.c

@@ -1,72 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-#define umul_ppmm(xh, xl, a, b) \
-{register u32 __t0, __t1, __t2;                                     \
-  __asm__ ("%@ Inlined umul_ppmm					\n\
-        mov     %2, %5, lsr #16						\n\
-        mov     %0, %6, lsr #16						\n\
-        bic     %3, %5, %2, lsl #16					\n\
-        bic     %4, %6, %0, lsl #16					\n\
-        mul     %1, %3, %4						\n\
-        mul     %4, %2, %4						\n\
-        mul     %3, %0, %3						\n\
-        mul     %0, %2, %0						\n\
-        adds    %3, %4, %3						\n\
-        addcs   %0, %0, #65536						\n\
-        adds    %1, %1, %3, lsl #16					\n\
-        adc     %0, %0, %3, lsr #16"                                    \
-           : "=&r" ((u32) (xh)),                                    \
-             "=r" ((u32) (xl)),                                     \
-             "=&r" (__t0), "=&r" (__t1), "=r" (__t2)                    \
-           : "r" ((u32) (a)),                                       \
-             "r" ((u32) (b)));}
-
-#define __umulsidi3(u, v) \
-  ({DIunion __w;                                                        \
-    umul_ppmm (__w.s.high, __w.s.low, u, v);                            \
-    __w.ll; })
-
-s64 __muldi3(s64 u, s64 v)
-{
-	DIunion w;
-	DIunion uu, vv;
-
-	uu.ll = u, vv.ll = v;
-
-	w.ll = __umulsidi3(uu.s.low, vv.s.low);
-	w.s.high += ((u32) uu.s.low * (u32) vv.s.high
-		     + (u32) uu.s.high * (u32) vv.s.low);
-
-	return w.ll;
-}

arch/arm/lib/ucmpdi2.S

@@ -0,0 +1,35 @@
+/*
+ *  linux/arch/arm/lib/ucmpdi2.S
+ *
+ *  Author:	Nicolas Pitre
+ *  Created:	Oct 19, 2005
+ *  Copyright:	Monta Vista Software, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+
+#ifdef __ARMEB__
+#define xh r0
+#define xl r1
+#define yh r2
+#define yl r3
+#else
+#define xl r0
+#define xh r1
+#define yl r2
+#define yh r3
+#endif
+
+ENTRY(__ucmpdi2)
+
+	cmp	xh, yh
+	cmpeq	xl, yl
+	movlo	r0, #0
+	moveq	r0, #1
+	movhi	r0, #2
+	mov	pc, lr
+

arch/arm/lib/ucmpdi2.c

@@ -1,49 +0,0 @@
-/* More subroutines needed by GCC output code on some machines.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-/* As a special exception, if you link this library with other files,
-   some of which are compiled with GCC, to produce an executable,
-   this library does not by itself cause the resulting executable
-   to be covered by the GNU General Public License.
-   This exception does not however invalidate any other reasons why
-   the executable file might be covered by the GNU General Public License.
- */
-/* support functions required by the kernel. based on code from gcc-2.95.3 */
-/* I Molton     29/07/01 */
-
-#include "gcclib.h"
-
-int __ucmpdi2(s64 a, s64 b)
-{
-	DIunion au, bu;
-
-	au.ll = a, bu.ll = b;
-
-	if ((u32) au.s.high < (u32) bu.s.high)
-		return 0;
-	else if ((u32) au.s.high > (u32) bu.s.high)
-		return 2;
-	if ((u32) au.s.low < (u32) bu.s.low)
-		return 0;
-	else if ((u32) au.s.low > (u32) bu.s.low)
-		return 2;
-	return 1;
-}

arch/arm/mach-imx/generic.c

@@ -26,6 +26,8 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/string.h>
+
 #include <asm/arch/imxfb.h>
 #include <asm/hardware.h>
 #include <asm/arch/imx-regs.h>

arch/arm/mach-integrator/clock.c

@@ -13,6 +13,7 @@
 #include <linux/list.h>
 #include <linux/errno.h>
 #include <linux/err.h>
+#include <linux/string.h>
 
 #include <asm/semaphore.h>
 #include <asm/hardware/clock.h>

arch/arm/mach-integrator/integrator_ap.c

@@ -30,6 +30,7 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/setup.h>
+#include <asm/param.h>		/* HZ */
 #include <asm/mach-types.h>
 #include <asm/hardware/amba.h>
 #include <asm/hardware/amba_kmi.h>

arch/arm/mach-integrator/lm.c

@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 
 #include <asm/arch/lm.h>
 

arch/arm/mach-iop3xx/iq31244-pci.c

@@ -14,6 +14,8 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>

arch/arm/mach-iop3xx/iq80321-pci.c

@@ -14,6 +14,8 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>

arch/arm/mach-iop3xx/iq80331-pci.c

@@ -13,6 +13,8 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>

arch/arm/mach-iop3xx/iq80332-pci.c

@@ -13,6 +13,8 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>

arch/arm/mach-pxa/corgi.c

@@ -33,6 +33,7 @@
 
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/irq.h>
+#include <asm/arch/irda.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
 #include <asm/arch/corgi.h>
@@ -224,6 +225,22 @@ static struct pxamci_platform_data corgi_mci_platform_data = {
 };
 
 
+/*
+ * Irda
+ */
+static void corgi_irda_transceiver_mode(struct device *dev, int mode)
+{
+	if (mode & IR_OFF)
+		GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
+	else
+		GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
+}
+
+static struct pxaficp_platform_data corgi_ficp_platform_data = {
+	.transceiver_cap  = IR_SIRMODE | IR_OFF,
+	.transceiver_mode = corgi_irda_transceiver_mode,
+};
+
 
 /*
  * USB Device Controller
@@ -269,10 +286,13 @@ static void __init corgi_init(void)
 
 	corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
 
+	pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
 	pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
 	pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
+
  	pxa_set_udc_info(&udc_info);
 	pxa_set_mci_info(&corgi_mci_platform_data);
+	pxa_set_ficp_info(&corgi_ficp_platform_data);
 
 	scoop_num = 1;
 	scoop_devs = &corgi_pcmcia_scoop[0];

arch/arm/mach-pxa/generic.c

@@ -23,6 +23,7 @@
 #include <linux/device.h>
 #include <linux/ioport.h>
 #include <linux/pm.h>
+#include <linux/string.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>

arch/arm/mach-pxa/poodle.c

@@ -32,6 +32,7 @@
 #include <asm/arch/irq.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
+#include <asm/arch/irda.h>
 #include <asm/arch/poodle.h>
 #include <asm/arch/pxafb.h>
 
@@ -151,6 +152,24 @@ static struct pxamci_platform_data poodle_mci_platform_data = {
 };
 
 
+/*
+ * Irda
+ */
+static void poodle_irda_transceiver_mode(struct device *dev, int mode)
+{
+	if (mode & IR_OFF) {
+		GPSR(POODLE_GPIO_IR_ON) = GPIO_bit(POODLE_GPIO_IR_ON);
+	} else {
+		GPCR(POODLE_GPIO_IR_ON) = GPIO_bit(POODLE_GPIO_IR_ON);
+	}
+}
+
+static struct pxaficp_platform_data poodle_ficp_platform_data = {
+	.transceiver_cap  = IR_SIRMODE | IR_OFF,
+	.transceiver_mode = poodle_irda_transceiver_mode,
+};
+
+
 /*
  * USB Device Controller
  */
@@ -244,8 +263,10 @@ static void __init poodle_init(void)
 
 	set_pxa_fb_info(&poodle_fb_info);
 	pxa_gpio_mode(POODLE_GPIO_USB_PULLUP | GPIO_OUT);
+	pxa_gpio_mode(POODLE_GPIO_IR_ON | GPIO_OUT);
 	pxa_set_udc_info(&udc_info);
 	pxa_set_mci_info(&poodle_mci_platform_data);
+	pxa_set_ficp_info(&poodle_ficp_platform_data);
 
 	scoop_num = 1;
 	scoop_devs = &poodle_pcmcia_scoop[0];

arch/arm/mach-pxa/spitz.c

@@ -34,6 +34,7 @@
 
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/irq.h>
+#include <asm/arch/irda.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
 #include <asm/arch/pxafb.h>
@@ -276,6 +277,23 @@ static struct pxamci_platform_data spitz_mci_platform_data = {
 };
 
 
+/*
+ * Irda
+ */
+static void spitz_irda_transceiver_mode(struct device *dev, int mode)
+{
+	if (mode & IR_OFF)
+		set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
+	else
+		reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
+}
+
+static struct pxaficp_platform_data spitz_ficp_platform_data = {
+	.transceiver_cap  = IR_SIRMODE | IR_OFF,
+	.transceiver_mode = spitz_irda_transceiver_mode,
+};
+
+
 /*
  * Spitz PXA Framebuffer
  */
@@ -326,6 +344,7 @@ static void __init common_init(void)
 
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 	pxa_set_mci_info(&spitz_mci_platform_data);
+	pxa_set_ficp_info(&spitz_ficp_platform_data);
 	set_pxa_fb_parent(&spitzssp_device.dev);
 	set_pxa_fb_info(&spitz_pxafb_info);
 }

arch/arm/mach-sa1100/generic.c

@@ -17,6 +17,7 @@
 #include <linux/pm.h>
 #include <linux/cpufreq.h>
 #include <linux/ioport.h>
+#include <linux/sched.h>	/* just for sched_clock() - funny that */
 
 #include <asm/div64.h>
 #include <asm/hardware.h>

arch/arm/mach-versatile/clock.c

@@ -13,6 +13,7 @@
 #include <linux/list.h>
 #include <linux/errno.h>
 #include <linux/err.h>
+#include <linux/string.h>
 
 #include <asm/semaphore.h>
 #include <asm/hardware/clock.h>

arch/arm/mm/copypage-v6.c

@@ -22,9 +22,7 @@
 #endif
 
 #define from_address	(0xffff8000)
-#define from_pgprot	PAGE_KERNEL
 #define to_address	(0xffffc000)
-#define to_pgprot	PAGE_KERNEL
 
 #define TOP_PTE(x)	pte_offset_kernel(top_pmd, x)
 
@@ -34,7 +32,7 @@ static DEFINE_SPINLOCK(v6_lock);
  * Copy the user page.  No aliasing to deal with so we can just
  * attack the kernel's existing mapping of these pages.
  */
-void v6_copy_user_page_nonaliasing(void *kto, const void *kfrom, unsigned long vaddr)
+static void v6_copy_user_page_nonaliasing(void *kto, const void *kfrom, unsigned long vaddr)
 {
 	copy_page(kto, kfrom);
 }
@@ -43,7 +41,7 @@ void v6_copy_user_page_nonaliasing(void *kto, const void *kfrom, unsigned long v
  * Clear the user page.  No aliasing to deal with so we can just
  * attack the kernel's existing mapping of this page.
  */
-void v6_clear_user_page_nonaliasing(void *kaddr, unsigned long vaddr)
+static void v6_clear_user_page_nonaliasing(void *kaddr, unsigned long vaddr)
 {
 	clear_page(kaddr);
 }
@@ -51,7 +49,7 @@ void v6_clear_user_page_nonaliasing(void *kaddr, unsigned long vaddr)
 /*
  * Copy the page, taking account of the cache colour.
  */
-void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vaddr)
+static void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vaddr)
 {
 	unsigned int offset = CACHE_COLOUR(vaddr);
 	unsigned long from, to;
@@ -72,8 +70,8 @@ void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vadd
 	 */
 	spin_lock(&v6_lock);
 
-	set_pte(TOP_PTE(from_address) + offset, pfn_pte(__pa(kfrom) >> PAGE_SHIFT, from_pgprot));
-	set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kto) >> PAGE_SHIFT, to_pgprot));
+	set_pte(TOP_PTE(from_address) + offset, pfn_pte(__pa(kfrom) >> PAGE_SHIFT, PAGE_KERNEL));
+	set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kto) >> PAGE_SHIFT, PAGE_KERNEL));
 
 	from = from_address + (offset << PAGE_SHIFT);
 	to   = to_address + (offset << PAGE_SHIFT);
@@ -91,7 +89,7 @@ void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned long vadd
  * so remap the kernel page into the same cache colour as the user
  * page.
  */
-void v6_clear_user_page_aliasing(void *kaddr, unsigned long vaddr)
+static void v6_clear_user_page_aliasing(void *kaddr, unsigned long vaddr)
 {
 	unsigned int offset = CACHE_COLOUR(vaddr);
 	unsigned long to = to_address + (offset << PAGE_SHIFT);
@@ -112,7 +110,7 @@ void v6_clear_user_page_aliasing(void *kaddr, unsigned long vaddr)
 	 */
 	spin_lock(&v6_lock);
 
-	set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kaddr) >> PAGE_SHIFT, to_pgprot));
+	set_pte(TOP_PTE(to_address) + offset, pfn_pte(__pa(kaddr) >> PAGE_SHIFT, PAGE_KERNEL));
 	flush_tlb_kernel_page(to);
 	clear_page((void *)to);
 

arch/arm/plat-omap/clock.c

@@ -13,6 +13,7 @@
 #include <linux/list.h>
 #include <linux/errno.h>
 #include <linux/err.h>
+#include <linux/string.h>
 
 #include <asm/io.h>
 #include <asm/semaphore.h>

arch/arm26/kernel/ptrace.c

@@ -665,7 +665,7 @@ static int do_ptrace(int request, struct task_struct *child, long addr, long dat
 	return ret;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;

arch/arm26/kernel/time.c

@@ -34,10 +34,6 @@
 #include <asm/irq.h>
 #include <asm/ioc.h>
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 extern unsigned long wall_jiffies;
 
 /* this needs a better home */

arch/cris/arch-v10/drivers/axisflashmap.c

@@ -140,6 +140,7 @@
 #include <linux/kernel.h>
 #include <linux/config.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/concat.h>
 #include <linux/mtd/map.h>

arch/cris/arch-v32/drivers/axisflashmap.c

@@ -20,6 +20,7 @@
 #include <linux/kernel.h>
 #include <linux/config.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 
 #include <linux/mtd/concat.h>
 #include <linux/mtd/map.h>

arch/cris/kernel/time.c

@@ -31,10 +31,7 @@
 #include <linux/timex.h>
 #include <linux/init.h>
 #include <linux/profile.h>
-
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
+#include <linux/sched.h>	/* just for sched_clock() - funny that */
 
 int have_rtc;  /* used to remember if we have an RTC or not */;
 

arch/frv/kernel/ptrace.c

@@ -106,7 +106,7 @@ void ptrace_enable(struct task_struct *child)
 	child->thread.frame0->__status |= REG__STATUS_STEP;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	unsigned long tmp;

arch/frv/kernel/time.c

@@ -34,9 +34,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-EXPORT_SYMBOL(jiffies_64);
-
 unsigned long __nongprelbss __clkin_clock_speed_HZ;
 unsigned long __nongprelbss __ext_bus_clock_speed_HZ;
 unsigned long __nongprelbss __res_bus_clock_speed_HZ;

arch/h8300/kernel/ptrace.c

@@ -57,7 +57,7 @@ void ptrace_disable(struct task_struct *child)
 	h8300_disable_trace(child);
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	int ret;

arch/h8300/kernel/time.c

@@ -32,10 +32,6 @@
 
 #define	TICK_SIZE (tick_nsec / 1000)
 
-u64 jiffies_64;
-
-EXPORT_SYMBOL(jiffies_64);
-
 /*
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick

arch/i386/Kconfig

@@ -5,7 +5,7 @@
 
 mainmenu "Linux Kernel Configuration"
 
-config X86
+config X86_32
 	bool
 	default y
 	help
@@ -18,6 +18,10 @@ config SEMAPHORE_SLEEPERS
 	bool
 	default y
 
+config X86
+	bool
+	default y
+
 config MMU
 	bool
 	default y
@@ -151,304 +155,7 @@ config ES7000_CLUSTERED_APIC
 	default y
 	depends on SMP && X86_ES7000 && MPENTIUMIII
 
-if !X86_ELAN
-
-choice
-	prompt "Processor family"
-	default M686
-
-config M386
-	bool "386"
-	---help---
-	  This is the processor type of your CPU. This information is used for
-	  optimizing purposes. In order to compile a kernel that can run on
-	  all x86 CPU types (albeit not optimally fast), you can specify
-	  "386" here.
-
-	  The kernel will not necessarily run on earlier architectures than
-	  the one you have chosen, e.g. a Pentium optimized kernel will run on
-	  a PPro, but not necessarily on a i486.
-
-	  Here are the settings recommended for greatest speed:
-	  - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
-	  486DLC/DLC2, UMC 486SX-S and NexGen Nx586.  Only "386" kernels
-	  will run on a 386 class machine.
-	  - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
-	  SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
-	  - "586" for generic Pentium CPUs lacking the TSC
-	  (time stamp counter) register.
-	  - "Pentium-Classic" for the Intel Pentium.
-	  - "Pentium-MMX" for the Intel Pentium MMX.
-	  - "Pentium-Pro" for the Intel Pentium Pro.
-	  - "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
-	  - "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
-	  - "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
-	  - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
-	  - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
-	  - "Crusoe" for the Transmeta Crusoe series.
-	  - "Efficeon" for the Transmeta Efficeon series.
-	  - "Winchip-C6" for original IDT Winchip.
-	  - "Winchip-2" for IDT Winchip 2.
-	  - "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
-	  - "GeodeGX1" for Geode GX1 (Cyrix MediaGX).
-	  - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
-	  - "VIA C3-2 for VIA C3-2 "Nehemiah" (model 9 and above).
-
-	  If you don't know what to do, choose "386".
-
-config M486
-	bool "486"
-	help
-	  Select this for a 486 series processor, either Intel or one of the
-	  compatible processors from AMD, Cyrix, IBM, or Intel.  Includes DX,
-	  DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
-	  U5S.
-
-config M586
-	bool "586/K5/5x86/6x86/6x86MX"
-	help
-	  Select this for an 586 or 686 series processor such as the AMD K5,
-	  the Cyrix 5x86, 6x86 and 6x86MX.  This choice does not
-	  assume the RDTSC (Read Time Stamp Counter) instruction.
-
-config M586TSC
-	bool "Pentium-Classic"
-	help
-	  Select this for a Pentium Classic processor with the RDTSC (Read
-	  Time Stamp Counter) instruction for benchmarking.
-
-config M586MMX
-	bool "Pentium-MMX"
-	help
-	  Select this for a Pentium with the MMX graphics/multimedia
-	  extended instructions.
-
-config M686
-	bool "Pentium-Pro"
-	help
-	  Select this for Intel Pentium Pro chips.  This enables the use of
-	  Pentium Pro extended instructions, and disables the init-time guard
-	  against the f00f bug found in earlier Pentiums.
-
-config MPENTIUMII
-	bool "Pentium-II/Celeron(pre-Coppermine)"
-	help
-	  Select this for Intel chips based on the Pentium-II and
-	  pre-Coppermine Celeron core.  This option enables an unaligned
-	  copy optimization, compiles the kernel with optimization flags
-	  tailored for the chip, and applies any applicable Pentium Pro
-	  optimizations.
-
-config MPENTIUMIII
-	bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
-	help
-	  Select this for Intel chips based on the Pentium-III and
-	  Celeron-Coppermine core.  This option enables use of some
-	  extended prefetch instructions in addition to the Pentium II
-	  extensions.
-
-config MPENTIUMM
-	bool "Pentium M"
-	help
-	  Select this for Intel Pentium M (not Pentium-4 M)
-	  notebook chips.
-
-config MPENTIUM4
-	bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/Xeon"
-	help
-	  Select this for Intel Pentium 4 chips.  This includes the
-	  Pentium 4, P4-based Celeron and Xeon, and Pentium-4 M
-	  (not Pentium M) chips.  This option enables compile flags
-	  optimized for the chip, uses the correct cache shift, and
-	  applies any applicable Pentium III optimizations.
-
-config MK6
-	bool "K6/K6-II/K6-III"
-	help
-	  Select this for an AMD K6-family processor.  Enables use of
-	  some extended instructions, and passes appropriate optimization
-	  flags to GCC.
-
-config MK7
-	bool "Athlon/Duron/K7"
-	help
-	  Select this for an AMD Athlon K7-family processor.  Enables use of
-	  some extended instructions, and passes appropriate optimization
-	  flags to GCC.
-
-config MK8
-	bool "Opteron/Athlon64/Hammer/K8"
-	help
-	  Select this for an AMD Opteron or Athlon64 Hammer-family processor.  Enables
-	  use of some extended instructions, and passes appropriate optimization
-	  flags to GCC.
-
-config MCRUSOE
-	bool "Crusoe"
-	help
-	  Select this for a Transmeta Crusoe processor.  Treats the processor
-	  like a 586 with TSC, and sets some GCC optimization flags (like a
-	  Pentium Pro with no alignment requirements).
-
-config MEFFICEON
-	bool "Efficeon"
-	help
-	  Select this for a Transmeta Efficeon processor.
-
-config MWINCHIPC6
-	bool "Winchip-C6"
-	help
-	  Select this for an IDT Winchip C6 chip.  Linux and GCC
-	  treat this chip as a 586TSC with some extended instructions
-	  and alignment requirements.
-
-config MWINCHIP2
-	bool "Winchip-2"
-	help
-	  Select this for an IDT Winchip-2.  Linux and GCC
-	  treat this chip as a 586TSC with some extended instructions
-	  and alignment requirements.
-
-config MWINCHIP3D
-	bool "Winchip-2A/Winchip-3"
-	help
-	  Select this for an IDT Winchip-2A or 3.  Linux and GCC
-	  treat this chip as a 586TSC with some extended instructions
-	  and alignment reqirements.  Also enable out of order memory
-	  stores for this CPU, which can increase performance of some
-	  operations.
-
-config MGEODEGX1
-	bool "GeodeGX1"
-	help
-	  Select this for a Geode GX1 (Cyrix MediaGX) chip.
-
-config MCYRIXIII
-	bool "CyrixIII/VIA-C3"
-	help
-	  Select this for a Cyrix III or C3 chip.  Presently Linux and GCC
-	  treat this chip as a generic 586. Whilst the CPU is 686 class,
-	  it lacks the cmov extension which gcc assumes is present when
-	  generating 686 code.
-	  Note that Nehemiah (Model 9) and above will not boot with this
-	  kernel due to them lacking the 3DNow! instructions used in earlier
-	  incarnations of the CPU.
-
-config MVIAC3_2
-	bool "VIA C3-2 (Nehemiah)"
-	help
-	  Select this for a VIA C3 "Nehemiah". Selecting this enables usage
-	  of SSE and tells gcc to treat the CPU as a 686.
-	  Note, this kernel will not boot on older (pre model 9) C3s.
-
-endchoice
-
-config X86_GENERIC
-       bool "Generic x86 support"
-       help
-	  Instead of just including optimizations for the selected
-	  x86 variant (e.g. PII, Crusoe or Athlon), include some more
-	  generic optimizations as well. This will make the kernel
-	  perform better on x86 CPUs other than that selected.
-
-	  This is really intended for distributors who need more
-	  generic optimizations.
-
-endif
-
-#
-# Define implied options from the CPU selection here
-#
-config X86_CMPXCHG
-	bool
-	depends on !M386
-	default y
-
-config X86_XADD
-	bool
-	depends on !M386
-	default y
-
-config X86_L1_CACHE_SHIFT
-	int
-	default "7" if MPENTIUM4 || X86_GENERIC
-	default "4" if X86_ELAN || M486 || M386
-	default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODEGX1
-	default "6" if MK7 || MK8 || MPENTIUMM
-
-config RWSEM_GENERIC_SPINLOCK
-	bool
-	depends on M386
-	default y
-
-config RWSEM_XCHGADD_ALGORITHM
-	bool
-	depends on !M386
-	default y
-
-config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
-
-config X86_PPRO_FENCE
-	bool
-	depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
-	default y
-
-config X86_F00F_BUG
-	bool
-	depends on M586MMX || M586TSC || M586 || M486 || M386
-	default y
-
-config X86_WP_WORKS_OK
-	bool
-	depends on !M386
-	default y
-
-config X86_INVLPG
-	bool
-	depends on !M386
-	default y
-
-config X86_BSWAP
-	bool
-	depends on !M386
-	default y
-
-config X86_POPAD_OK
-	bool
-	depends on !M386
-	default y
-
-config X86_ALIGNMENT_16
-	bool
-	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
-	default y
-
-config X86_GOOD_APIC
-	bool
-	depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON
-	default y
-
-config X86_INTEL_USERCOPY
-	bool
-	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON
-	default y
-
-config X86_USE_PPRO_CHECKSUM
-	bool
-	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MEFFICEON
-	default y
-
-config X86_USE_3DNOW
-	bool
-	depends on MCYRIXIII || MK7
-	default y
-
-config X86_OOSTORE
-	bool
-	depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
-	default y
+source "arch/i386/Kconfig.cpu"
 
 config HPET_TIMER
 	bool "HPET Timer Support"
@@ -561,11 +268,6 @@ config X86_VISWS_APIC
 	depends on X86_VISWS
 	default y
 
-config X86_TSC
-	bool
-	depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MGEODEGX1) && !X86_NUMAQ
-	default y
-
 config X86_MCE
 	bool "Machine Check Exception"
 	depends on !X86_VOYAGER

arch/i386/Kconfig.cpu

@@ -0,0 +1,309 @@
+# Put here option for CPU selection and depending optimization
+if !X86_ELAN
+
+choice
+	prompt "Processor family"
+	default M686
+
+config M386
+	bool "386"
+	---help---
+	  This is the processor type of your CPU. This information is used for
+	  optimizing purposes. In order to compile a kernel that can run on
+	  all x86 CPU types (albeit not optimally fast), you can specify
+	  "386" here.
+
+	  The kernel will not necessarily run on earlier architectures than
+	  the one you have chosen, e.g. a Pentium optimized kernel will run on
+	  a PPro, but not necessarily on a i486.
+
+	  Here are the settings recommended for greatest speed:
+	  - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
+	  486DLC/DLC2, UMC 486SX-S and NexGen Nx586.  Only "386" kernels
+	  will run on a 386 class machine.
+	  - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
+	  SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
+	  - "586" for generic Pentium CPUs lacking the TSC
+	  (time stamp counter) register.
+	  - "Pentium-Classic" for the Intel Pentium.
+	  - "Pentium-MMX" for the Intel Pentium MMX.
+	  - "Pentium-Pro" for the Intel Pentium Pro.
+	  - "Pentium-II" for the Intel Pentium II or pre-Coppermine Celeron.
+	  - "Pentium-III" for the Intel Pentium III or Coppermine Celeron.
+	  - "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
+	  - "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
+	  - "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
+	  - "Crusoe" for the Transmeta Crusoe series.
+	  - "Efficeon" for the Transmeta Efficeon series.
+	  - "Winchip-C6" for original IDT Winchip.
+	  - "Winchip-2" for IDT Winchip 2.
+	  - "Winchip-2A" for IDT Winchips with 3dNow! capabilities.
+	  - "GeodeGX1" for Geode GX1 (Cyrix MediaGX).
+	  - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
+	  - "VIA C3-2 for VIA C3-2 "Nehemiah" (model 9 and above).
+
+	  If you don't know what to do, choose "386".
+
+config M486
+	bool "486"
+	help
+	  Select this for a 486 series processor, either Intel or one of the
+	  compatible processors from AMD, Cyrix, IBM, or Intel.  Includes DX,
+	  DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
+	  U5S.
+
+config M586
+	bool "586/K5/5x86/6x86/6x86MX"
+	help
+	  Select this for an 586 or 686 series processor such as the AMD K5,
+	  the Cyrix 5x86, 6x86 and 6x86MX.  This choice does not
+	  assume the RDTSC (Read Time Stamp Counter) instruction.
+
+config M586TSC
+	bool "Pentium-Classic"
+	help
+	  Select this for a Pentium Classic processor with the RDTSC (Read
+	  Time Stamp Counter) instruction for benchmarking.
+
+config M586MMX
+	bool "Pentium-MMX"
+	help
+	  Select this for a Pentium with the MMX graphics/multimedia
+	  extended instructions.
+
+config M686
+	bool "Pentium-Pro"
+	help
+	  Select this for Intel Pentium Pro chips.  This enables the use of
+	  Pentium Pro extended instructions, and disables the init-time guard
+	  against the f00f bug found in earlier Pentiums.
+
+config MPENTIUMII
+	bool "Pentium-II/Celeron(pre-Coppermine)"
+	help
+	  Select this for Intel chips based on the Pentium-II and
+	  pre-Coppermine Celeron core.  This option enables an unaligned
+	  copy optimization, compiles the kernel with optimization flags
+	  tailored for the chip, and applies any applicable Pentium Pro
+	  optimizations.
+
+config MPENTIUMIII
+	bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
+	help
+	  Select this for Intel chips based on the Pentium-III and
+	  Celeron-Coppermine core.  This option enables use of some
+	  extended prefetch instructions in addition to the Pentium II
+	  extensions.
+
+config MPENTIUMM
+	bool "Pentium M"
+	help
+	  Select this for Intel Pentium M (not Pentium-4 M)
+	  notebook chips.
+
+config MPENTIUM4
+	bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/Xeon"
+	help
+	  Select this for Intel Pentium 4 chips.  This includes the
+	  Pentium 4, P4-based Celeron and Xeon, and Pentium-4 M
+	  (not Pentium M) chips.  This option enables compile flags
+	  optimized for the chip, uses the correct cache shift, and
+	  applies any applicable Pentium III optimizations.
+
+config MK6
+	bool "K6/K6-II/K6-III"
+	help
+	  Select this for an AMD K6-family processor.  Enables use of
+	  some extended instructions, and passes appropriate optimization
+	  flags to GCC.
+
+config MK7
+	bool "Athlon/Duron/K7"
+	help
+	  Select this for an AMD Athlon K7-family processor.  Enables use of
+	  some extended instructions, and passes appropriate optimization
+	  flags to GCC.
+
+config MK8
+	bool "Opteron/Athlon64/Hammer/K8"
+	help
+	  Select this for an AMD Opteron or Athlon64 Hammer-family processor.  Enables
+	  use of some extended instructions, and passes appropriate optimization
+	  flags to GCC.
+
+config MCRUSOE
+	bool "Crusoe"
+	help
+	  Select this for a Transmeta Crusoe processor.  Treats the processor
+	  like a 586 with TSC, and sets some GCC optimization flags (like a
+	  Pentium Pro with no alignment requirements).
+
+config MEFFICEON
+	bool "Efficeon"
+	help
+	  Select this for a Transmeta Efficeon processor.
+
+config MWINCHIPC6
+	bool "Winchip-C6"
+	help
+	  Select this for an IDT Winchip C6 chip.  Linux and GCC
+	  treat this chip as a 586TSC with some extended instructions
+	  and alignment requirements.
+
+config MWINCHIP2
+	bool "Winchip-2"
+	help
+	  Select this for an IDT Winchip-2.  Linux and GCC
+	  treat this chip as a 586TSC with some extended instructions
+	  and alignment requirements.
+
+config MWINCHIP3D
+	bool "Winchip-2A/Winchip-3"
+	help
+	  Select this for an IDT Winchip-2A or 3.  Linux and GCC
+	  treat this chip as a 586TSC with some extended instructions
+	  and alignment reqirements.  Also enable out of order memory
+	  stores for this CPU, which can increase performance of some
+	  operations.
+
+config MGEODEGX1
+	bool "GeodeGX1"
+	help
+	  Select this for a Geode GX1 (Cyrix MediaGX) chip.
+
+config MCYRIXIII
+	bool "CyrixIII/VIA-C3"
+	help
+	  Select this for a Cyrix III or C3 chip.  Presently Linux and GCC
+	  treat this chip as a generic 586. Whilst the CPU is 686 class,
+	  it lacks the cmov extension which gcc assumes is present when
+	  generating 686 code.
+	  Note that Nehemiah (Model 9) and above will not boot with this
+	  kernel due to them lacking the 3DNow! instructions used in earlier
+	  incarnations of the CPU.
+
+config MVIAC3_2
+	bool "VIA C3-2 (Nehemiah)"
+	help
+	  Select this for a VIA C3 "Nehemiah". Selecting this enables usage
+	  of SSE and tells gcc to treat the CPU as a 686.
+	  Note, this kernel will not boot on older (pre model 9) C3s.
+
+endchoice
+
+config X86_GENERIC
+       bool "Generic x86 support"
+       help
+	  Instead of just including optimizations for the selected
+	  x86 variant (e.g. PII, Crusoe or Athlon), include some more
+	  generic optimizations as well. This will make the kernel
+	  perform better on x86 CPUs other than that selected.
+
+	  This is really intended for distributors who need more
+	  generic optimizations.
+
+endif
+
+#
+# Define implied options from the CPU selection here
+#
+config X86_CMPXCHG
+	bool
+	depends on !M386
+	default y
+
+config X86_XADD
+	bool
+	depends on !M386
+	default y
+
+config X86_L1_CACHE_SHIFT
+	int
+	default "7" if MPENTIUM4 || X86_GENERIC
+	default "4" if X86_ELAN || M486 || M386
+	default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODEGX1
+	default "6" if MK7 || MK8 || MPENTIUMM
+
+config RWSEM_GENERIC_SPINLOCK
+	bool
+	depends on M386
+	default y
+
+config RWSEM_XCHGADD_ALGORITHM
+	bool
+	depends on !M386
+	default y
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config X86_PPRO_FENCE
+	bool
+	depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
+	default y
+
+config X86_F00F_BUG
+	bool
+	depends on M586MMX || M586TSC || M586 || M486 || M386
+	default y
+
+config X86_WP_WORKS_OK
+	bool
+	depends on !M386
+	default y
+
+config X86_INVLPG
+	bool
+	depends on !M386
+	default y
+
+config X86_BSWAP
+	bool
+	depends on !M386
+	default y
+
+config X86_POPAD_OK
+	bool
+	depends on !M386
+	default y
+
+config X86_CMPXCHG64
+	bool
+	depends on !M386 && !M486
+	default y
+
+config X86_ALIGNMENT_16
+	bool
+	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
+	default y
+
+config X86_GOOD_APIC
+	bool
+	depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON
+	default y
+
+config X86_INTEL_USERCOPY
+	bool
+	depends on MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M586MMX || X86_GENERIC || MK8 || MK7 || MEFFICEON
+	default y
+
+config X86_USE_PPRO_CHECKSUM
+	bool
+	depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MEFFICEON
+	default y
+
+config X86_USE_3DNOW
+	bool
+	depends on MCYRIXIII || MK7
+	default y
+
+config X86_OOSTORE
+	bool
+	depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR
+	default y
+
+config X86_TSC
+	bool
+	depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MGEODEGX1) && !X86_NUMAQ
+	default y

arch/i386/Makefile

@@ -34,35 +34,8 @@ CFLAGS += -pipe -msoft-float
 # prevent gcc from keeping the stack 16 byte aligned
 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
 
-align := $(cc-option-align)
-cflags-$(CONFIG_M386)		+= -march=i386
-cflags-$(CONFIG_M486)		+= -march=i486
-cflags-$(CONFIG_M586)		+= -march=i586
-cflags-$(CONFIG_M586TSC)	+= -march=i586
-cflags-$(CONFIG_M586MMX)	+= $(call cc-option,-march=pentium-mmx,-march=i586)
-cflags-$(CONFIG_M686)		+= -march=i686
-cflags-$(CONFIG_MPENTIUMII)	+= -march=i686 $(call cc-option,-mtune=pentium2)
-cflags-$(CONFIG_MPENTIUMIII)	+= -march=i686 $(call cc-option,-mtune=pentium3)
-cflags-$(CONFIG_MPENTIUMM)	+= -march=i686 $(call cc-option,-mtune=pentium3)
-cflags-$(CONFIG_MPENTIUM4)	+= -march=i686 $(call cc-option,-mtune=pentium4)
-cflags-$(CONFIG_MK6)		+= -march=k6
-# Please note, that patches that add -march=athlon-xp and friends are pointless.
-# They make zero difference whatsosever to performance at this time.
-cflags-$(CONFIG_MK7)		+= $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
-cflags-$(CONFIG_MK8)		+= $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
-cflags-$(CONFIG_MCRUSOE)	+= -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
-cflags-$(CONFIG_MEFFICEON)	+= -march=i686 $(call cc-option,-mtune=pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
-cflags-$(CONFIG_MWINCHIPC6)	+= $(call cc-option,-march=winchip-c6,-march=i586)
-cflags-$(CONFIG_MWINCHIP2)	+= $(call cc-option,-march=winchip2,-march=i586)
-cflags-$(CONFIG_MWINCHIP3D)	+= $(call cc-option,-march=winchip2,-march=i586)
-cflags-$(CONFIG_MCYRIXIII)	+= $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
-cflags-$(CONFIG_MVIAC3_2)	+= $(call cc-option,-march=c3-2,-march=i686)
-
-# AMD Elan support
-cflags-$(CONFIG_X86_ELAN)	+= -march=i486
-
-# Geode GX1 support
-cflags-$(CONFIG_MGEODEGX1)		+= $(call cc-option,-march=pentium-mmx,-march=i486)
+# CPU-specific tuning. Anything which can be shared with UML should go here.
+include $(srctree)/arch/i386/Makefile.cpu
 
 # -mregparm=3 works ok on gcc-3.0 and later
 #

arch/i386/Makefile.cpu

@@ -0,0 +1,41 @@
+# CPU tuning section - shared with UML.
+# Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML.
+
+#-mtune exists since gcc 3.4, and some -mcpu flavors didn't exist in gcc 2.95.
+HAS_MTUNE	:= $(call cc-option-yn, -mtune=i386)
+ifeq ($(HAS_MTUNE),y)
+tune		= $(call cc-option,-mtune=$(1),)
+else
+tune		= $(call cc-option,-mcpu=$(1),)
+endif
+
+align := $(cc-option-align)
+cflags-$(CONFIG_M386)		+= -march=i386
+cflags-$(CONFIG_M486)		+= -march=i486
+cflags-$(CONFIG_M586)		+= -march=i586
+cflags-$(CONFIG_M586TSC)	+= -march=i586
+cflags-$(CONFIG_M586MMX)	+= $(call cc-option,-march=pentium-mmx,-march=i586)
+cflags-$(CONFIG_M686)		+= -march=i686
+cflags-$(CONFIG_MPENTIUMII)	+= -march=i686 $(call tune,pentium2)
+cflags-$(CONFIG_MPENTIUMIII)	+= -march=i686 $(call tune,pentium3)
+cflags-$(CONFIG_MPENTIUMM)	+= -march=i686 $(call tune,pentium3)
+cflags-$(CONFIG_MPENTIUM4)	+= -march=i686 $(call tune,pentium4)
+cflags-$(CONFIG_MK6)		+= -march=k6
+# Please note, that patches that add -march=athlon-xp and friends are pointless.
+# They make zero difference whatsosever to performance at this time.
+cflags-$(CONFIG_MK7)		+= $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
+cflags-$(CONFIG_MK8)		+= $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
+cflags-$(CONFIG_MCRUSOE)	+= -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MEFFICEON)	+= -march=i686 $(call tune,pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MWINCHIPC6)	+= $(call cc-option,-march=winchip-c6,-march=i586)
+cflags-$(CONFIG_MWINCHIP2)	+= $(call cc-option,-march=winchip2,-march=i586)
+cflags-$(CONFIG_MWINCHIP3D)	+= $(call cc-option,-march=winchip2,-march=i586)
+cflags-$(CONFIG_MCYRIXIII)	+= $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MVIAC3_2)	+= $(call cc-option,-march=c3-2,-march=i686)
+
+# AMD Elan support
+cflags-$(CONFIG_X86_ELAN)	+= -march=i486
+
+# Geode GX1 support
+cflags-$(CONFIG_MGEODEGX1)		+= $(call cc-option,-march=pentium-mmx,-march=i486)
+

arch/i386/kernel/apic.c

@@ -803,6 +803,7 @@ no_apic:
 
 void __init init_apic_mappings(void)
 {
+	unsigned int orig_apicid;
 	unsigned long apic_phys;
 
 	/*
@@ -824,8 +825,11 @@ void __init init_apic_mappings(void)
 	 * Fetch the APIC ID of the BSP in case we have a
 	 * default configuration (or the MP table is broken).
 	 */
-	if (boot_cpu_physical_apicid == -1U)
-		boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
+	orig_apicid = boot_cpu_physical_apicid;
+	boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
+	if ((orig_apicid != -1U) && (orig_apicid != boot_cpu_physical_apicid))
+		printk(KERN_WARNING "Boot APIC ID in local APIC unexpected (%d vs %d)",
+			orig_apicid, boot_cpu_physical_apicid);
 
 #ifdef CONFIG_X86_IO_APIC
 	{
@@ -1046,10 +1050,11 @@ static unsigned int calibration_result;
 
 void __init setup_boot_APIC_clock(void)
 {
+	unsigned long flags;
 	apic_printk(APIC_VERBOSE, "Using local APIC timer interrupts.\n");
 	using_apic_timer = 1;
 
-	local_irq_disable();
+	local_irq_save(flags);
 
 	calibration_result = calibrate_APIC_clock();
 	/*
@@ -1057,7 +1062,7 @@ void __init setup_boot_APIC_clock(void)
 	 */
 	setup_APIC_timer(calibration_result);
 
-	local_irq_enable();
+	local_irq_restore(flags);
 }
 
 void __devinit setup_secondary_APIC_clock(void)
@@ -1254,40 +1259,81 @@ fastcall void smp_error_interrupt(struct pt_regs *regs)
 }
 
 /*
- * This initializes the IO-APIC and APIC hardware if this is
- * a UP kernel.
+ * This initializes the IO-APIC and APIC hardware.
  */
-int __init APIC_init_uniprocessor (void)
+int __init APIC_init(void)
 {
-	if (enable_local_apic < 0)
-		clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability);
+	if (enable_local_apic < 0) {
+		printk(KERN_INFO "APIC disabled\n");
+		return -1;
+	}
 
-	if (!smp_found_config && !cpu_has_apic)
+	/* See if we have a SMP configuration or have forced enabled
+	 * the local apic.
+	 */
+	if (!smp_found_config && !acpi_lapic && !cpu_has_apic) {
+		enable_local_apic = -1;
 		return -1;
+	}
 
 	/*
-	 * Complain if the BIOS pretends there is one.
+	 * Complain if the BIOS pretends there is an apic.
+	 * Then get out because we don't have an a local apic.
 	 */
 	if (!cpu_has_apic && APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid])) {
 		printk(KERN_ERR "BIOS bug, local APIC #%d not detected!...\n",
 			boot_cpu_physical_apicid);
+		printk(KERN_ERR "... forcing use of dummy APIC emulation. (tell your hw vendor)\n");
+		enable_local_apic = -1;
 		return -1;
 	}
 
 	verify_local_APIC();
 
+	/*
+	 * Should not be necessary because the MP table should list the boot
+	 * CPU too, but we do it for the sake of robustness anyway.
+	 * Makes no sense to do this check in clustered apic mode, so skip it
+	 */
+	if (!check_phys_apicid_present(boot_cpu_physical_apicid)) {
+		printk("weird, boot CPU (#%d) not listed by the BIOS.\n",
+				boot_cpu_physical_apicid);
+		physid_set(boot_cpu_physical_apicid, phys_cpu_present_map);
+	}
+
+	/*
+	 * Switch from PIC to APIC mode.
+	 */
 	connect_bsp_APIC();
+	setup_local_APIC();
 
-	phys_cpu_present_map = physid_mask_of_physid(boot_cpu_physical_apicid);
+#ifdef CONFIG_X86_IO_APIC
+	/*
+	 * Now start the IO-APICs
+	 */
+	if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
+		setup_IO_APIC();
+#endif
+	return 0;
+}
 
-	setup_local_APIC();
+void __init APIC_late_time_init(void)
+{
+	/* Improve our loops per jiffy estimate */
+	loops_per_jiffy = ((1000 + HZ - 1)/HZ)*cpu_khz;
+	boot_cpu_data.loops_per_jiffy = loops_per_jiffy;
+	cpu_data[0].loops_per_jiffy = loops_per_jiffy;
+
+	/* setup_apic_nmi_watchdog doesn't work properly before cpu_khz is
+	 * initialized.  So redo it here to ensure the boot cpu is setup
+	 * properly.
+	 */
+	if (nmi_watchdog == NMI_LOCAL_APIC)
+		setup_apic_nmi_watchdog();
 
 #ifdef CONFIG_X86_IO_APIC
-	if (smp_found_config)
-		if (!skip_ioapic_setup && nr_ioapics)
-			setup_IO_APIC();
+	if (smp_found_config && !skip_ioapic_setup && nr_ioapics)
+		IO_APIC_late_time_init();
 #endif
 	setup_boot_APIC_clock();
-
-	return 0;
 }

arch/i386/kernel/apm.c

@@ -597,12 +597,14 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
 	cpumask_t		cpus;
 	int			cpu;
 	struct desc_struct	save_desc_40;
+	struct desc_struct	*gdt;
 
 	cpus = apm_save_cpus();
 	
 	cpu = get_cpu();
-	save_desc_40 = per_cpu(cpu_gdt_table, cpu)[0x40 / 8];
-	per_cpu(cpu_gdt_table, cpu)[0x40 / 8] = bad_bios_desc;
+	gdt = get_cpu_gdt_table(cpu);
+	save_desc_40 = gdt[0x40 / 8];
+	gdt[0x40 / 8] = bad_bios_desc;
 
 	local_save_flags(flags);
 	APM_DO_CLI;
@@ -610,7 +612,7 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
 	apm_bios_call_asm(func, ebx_in, ecx_in, eax, ebx, ecx, edx, esi);
 	APM_DO_RESTORE_SEGS;
 	local_irq_restore(flags);
-	per_cpu(cpu_gdt_table, cpu)[0x40 / 8] = save_desc_40;
+	gdt[0x40 / 8] = save_desc_40;
 	put_cpu();
 	apm_restore_cpus(cpus);
 	
@@ -639,13 +641,14 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
 	cpumask_t		cpus;
 	int			cpu;
 	struct desc_struct	save_desc_40;
-
+	struct desc_struct	*gdt;
 
 	cpus = apm_save_cpus();
 	
 	cpu = get_cpu();
-	save_desc_40 = per_cpu(cpu_gdt_table, cpu)[0x40 / 8];
-	per_cpu(cpu_gdt_table, cpu)[0x40 / 8] = bad_bios_desc;
+	gdt = get_cpu_gdt_table(cpu);
+	save_desc_40 = gdt[0x40 / 8];
+	gdt[0x40 / 8] = bad_bios_desc;
 
 	local_save_flags(flags);
 	APM_DO_CLI;
@@ -653,7 +656,7 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
 	error = apm_bios_call_simple_asm(func, ebx_in, ecx_in, eax);
 	APM_DO_RESTORE_SEGS;
 	local_irq_restore(flags);
-	__get_cpu_var(cpu_gdt_table)[0x40 / 8] = save_desc_40;
+	gdt[0x40 / 8] = save_desc_40;
 	put_cpu();
 	apm_restore_cpus(cpus);
 	return error;
@@ -2295,35 +2298,36 @@ static int __init apm_init(void)
 	apm_bios_entry.segment = APM_CS;
 
 	for (i = 0; i < NR_CPUS; i++) {
-		set_base(per_cpu(cpu_gdt_table, i)[APM_CS >> 3],
+		struct desc_struct *gdt = get_cpu_gdt_table(i);
+		set_base(gdt[APM_CS >> 3],
 			 __va((unsigned long)apm_info.bios.cseg << 4));
-		set_base(per_cpu(cpu_gdt_table, i)[APM_CS_16 >> 3],
+		set_base(gdt[APM_CS_16 >> 3],
 			 __va((unsigned long)apm_info.bios.cseg_16 << 4));
-		set_base(per_cpu(cpu_gdt_table, i)[APM_DS >> 3],
+		set_base(gdt[APM_DS >> 3],
 			 __va((unsigned long)apm_info.bios.dseg << 4));
 #ifndef APM_RELAX_SEGMENTS
 		if (apm_info.bios.version == 0x100) {
 #endif
 			/* For ASUS motherboard, Award BIOS rev 110 (and others?) */
-			_set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS >> 3], 64 * 1024 - 1);
+			_set_limit((char *)&gdt[APM_CS >> 3], 64 * 1024 - 1);
 			/* For some unknown machine. */
-			_set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS_16 >> 3], 64 * 1024 - 1);
+			_set_limit((char *)&gdt[APM_CS_16 >> 3], 64 * 1024 - 1);
 			/* For the DEC Hinote Ultra CT475 (and others?) */
-			_set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_DS >> 3], 64 * 1024 - 1);
+			_set_limit((char *)&gdt[APM_DS >> 3], 64 * 1024 - 1);
 #ifndef APM_RELAX_SEGMENTS
 		} else {
-			_set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS >> 3],
+			_set_limit((char *)&gdt[APM_CS >> 3],
 				(apm_info.bios.cseg_len - 1) & 0xffff);
-			_set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS_16 >> 3],
+			_set_limit((char *)&gdt[APM_CS_16 >> 3],
 				(apm_info.bios.cseg_16_len - 1) & 0xffff);
-			_set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_DS >> 3],
+			_set_limit((char *)&gdt[APM_DS >> 3],
 				(apm_info.bios.dseg_len - 1) & 0xffff);
 		      /* workaround for broken BIOSes */
 	                if (apm_info.bios.cseg_len <= apm_info.bios.offset)
-        	                _set_limit((char *)&per_cpu(cpu_gdt_table, i)[APM_CS >> 3], 64 * 1024 -1);
+        	                _set_limit((char *)&gdt[APM_CS >> 3], 64 * 1024 -1);
                        if (apm_info.bios.dseg_len <= 0x40) { /* 0x40 * 4kB == 64kB */
                         	/* for the BIOS that assumes granularity = 1 */
-                        	per_cpu(cpu_gdt_table, i)[APM_DS >> 3].b |= 0x800000;
+                        	gdt[APM_DS >> 3].b |= 0x800000;
                         	printk(KERN_NOTICE "apm: we set the granularity of dseg.\n");
         	        }
 		}

arch/i386/kernel/cpu/common.c

@@ -573,6 +573,7 @@ void __devinit cpu_init(void)
 	int cpu = smp_processor_id();
 	struct tss_struct * t = &per_cpu(init_tss, cpu);
 	struct thread_struct *thread = &current->thread;
+	struct desc_struct *gdt = get_cpu_gdt_table(cpu);
 	__u32 stk16_off = (__u32)&per_cpu(cpu_16bit_stack, cpu);
 
 	if (cpu_test_and_set(cpu, cpu_initialized)) {
@@ -594,24 +595,16 @@ void __devinit cpu_init(void)
 	 * Initialize the per-CPU GDT with the boot GDT,
 	 * and set up the GDT descriptor:
 	 */
-	memcpy(&per_cpu(cpu_gdt_table, cpu), cpu_gdt_table,
-	       GDT_SIZE);
+ 	memcpy(gdt, cpu_gdt_table, GDT_SIZE);
 
 	/* Set up GDT entry for 16bit stack */
-	*(__u64 *)&(per_cpu(cpu_gdt_table, cpu)[GDT_ENTRY_ESPFIX_SS]) |=
+ 	*(__u64 *)(&gdt[GDT_ENTRY_ESPFIX_SS]) |=
 		((((__u64)stk16_off) << 16) & 0x000000ffffff0000ULL) |
 		((((__u64)stk16_off) << 32) & 0xff00000000000000ULL) |
 		(CPU_16BIT_STACK_SIZE - 1);
 
 	cpu_gdt_descr[cpu].size = GDT_SIZE - 1;
-	cpu_gdt_descr[cpu].address =
-	    (unsigned long)&per_cpu(cpu_gdt_table, cpu);
-
-	/*
-	 * Set up the per-thread TLS descriptor cache:
-	 */
-	memcpy(thread->tls_array, &per_cpu(cpu_gdt_table, cpu),
-		GDT_ENTRY_TLS_ENTRIES * 8);
+ 	cpu_gdt_descr[cpu].address = (unsigned long)gdt;
 
 	load_gdt(&cpu_gdt_descr[cpu]);
 	load_idt(&idt_descr);

arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c

@@ -32,6 +32,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/compiler.h>
+#include <linux/sched.h>	/* current */
 #include <asm/io.h>
 #include <asm/delay.h>
 #include <asm/uaccess.h>

arch/i386/kernel/cpu/cpufreq/p4-clockmod.c

@@ -28,6 +28,7 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/cpumask.h>
+#include <linux/sched.h>	/* current / set_cpus_allowed() */
 
 #include <asm/processor.h> 
 #include <asm/msr.h>

arch/i386/kernel/cpu/cpufreq/powernow-k8.c

@@ -32,6 +32,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/cpumask.h>
+#include <linux/sched.h>	/* for current / set_cpus_allowed() */
 
 #include <asm/msr.h>
 #include <asm/io.h>

arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c

@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/cpufreq.h>
 #include <linux/config.h>
+#include <linux/sched.h>	/* current */
 #include <linux/delay.h>
 #include <linux/compiler.h>
 

arch/i386/kernel/cpu/intel_cacheinfo.c

@@ -3,6 +3,7 @@
  *
  *      Changes:
  *      Venkatesh Pallipadi	: Adding cache identification through cpuid(4)
+ *		Ashok Raj <ashok.raj@intel.com>: Work with CPU hotplug infrastructure.
  */
 
 #include <linux/init.h>
@@ -10,6 +11,7 @@
 #include <linux/device.h>
 #include <linux/compiler.h>
 #include <linux/cpu.h>
+#include <linux/sched.h>
 
 #include <asm/processor.h>
 #include <asm/smp.h>
@@ -28,7 +30,7 @@ struct _cache_table
 };
 
 /* all the cache descriptor types we care about (no TLB or trace cache entries) */
-static struct _cache_table cache_table[] __devinitdata =
+static struct _cache_table cache_table[] __cpuinitdata =
 {
 	{ 0x06, LVL_1_INST, 8 },	/* 4-way set assoc, 32 byte line size */
 	{ 0x08, LVL_1_INST, 16 },	/* 4-way set assoc, 32 byte line size */
@@ -117,10 +119,9 @@ struct _cpuid4_info {
 	cpumask_t shared_cpu_map;
 };
 
-#define MAX_CACHE_LEAVES		4
 static unsigned short			num_cache_leaves;
 
-static int __devinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
+static int __cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
 {
 	unsigned int		eax, ebx, ecx, edx;
 	union _cpuid4_leaf_eax	cache_eax;
@@ -144,23 +145,18 @@ static int __init find_num_cache_leaves(void)
 {
 	unsigned int		eax, ebx, ecx, edx;
 	union _cpuid4_leaf_eax	cache_eax;
-	int 			i;
-	int 			retval;
+	int 			i = -1;
 
-	retval = MAX_CACHE_LEAVES;
-	/* Do cpuid(4) loop to find out num_cache_leaves */
-	for (i = 0; i < MAX_CACHE_LEAVES; i++) {
+	do {
+		++i;
+		/* Do cpuid(4) loop to find out num_cache_leaves */
 		cpuid_count(4, i, &eax, &ebx, &ecx, &edx);
 		cache_eax.full = eax;
-		if (cache_eax.split.type == CACHE_TYPE_NULL) {
-			retval = i;
-			break;
-		}
-	}
-	return retval;
+	} while (cache_eax.split.type != CACHE_TYPE_NULL);
+	return i;
 }
 
-unsigned int __devinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
+unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
 {
 	unsigned int trace = 0, l1i = 0, l1d = 0, l2 = 0, l3 = 0; /* Cache sizes */
 	unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */
@@ -284,13 +280,7 @@ unsigned int __devinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
 		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);
+		c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d));
 	}
 
 	return l2;
@@ -301,7 +291,7 @@ static struct _cpuid4_info *cpuid4_info[NR_CPUS];
 #define CPUID4_INFO_IDX(x,y)    (&((cpuid4_info[x])[y]))
 
 #ifdef CONFIG_SMP
-static void __devinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
+static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
 {
 	struct _cpuid4_info	*this_leaf;
 	unsigned long num_threads_sharing;
@@ -334,7 +324,7 @@ static void free_cache_attributes(unsigned int cpu)
 	cpuid4_info[cpu] = NULL;
 }
 
-static int __devinit detect_cache_attributes(unsigned int cpu)
+static int __cpuinit detect_cache_attributes(unsigned int cpu)
 {
 	struct _cpuid4_info	*this_leaf;
 	unsigned long 		j;
@@ -511,7 +501,7 @@ static void cpuid4_cache_sysfs_exit(unsigned int cpu)
 	free_cache_attributes(cpu);
 }
 
-static int __devinit cpuid4_cache_sysfs_init(unsigned int cpu)
+static int __cpuinit cpuid4_cache_sysfs_init(unsigned int cpu)
 {
 
 	if (num_cache_leaves == 0)
@@ -542,7 +532,7 @@ err_out:
 }
 
 /* Add/Remove cache interface for CPU device */
-static int __devinit cache_add_dev(struct sys_device * sys_dev)
+static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
 {
 	unsigned int cpu = sys_dev->id;
 	unsigned long i, j;
@@ -579,7 +569,7 @@ static int __devinit cache_add_dev(struct sys_device * sys_dev)
 	return retval;
 }
 
-static int __devexit cache_remove_dev(struct sys_device * sys_dev)
+static void __cpuexit cache_remove_dev(struct sys_device * sys_dev)
 {
 	unsigned int cpu = sys_dev->id;
 	unsigned long i;
@@ -588,24 +578,49 @@ static int __devexit cache_remove_dev(struct sys_device * sys_dev)
 		kobject_unregister(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
 	kobject_unregister(cache_kobject[cpu]);
 	cpuid4_cache_sysfs_exit(cpu);
-	return 0;
+	return;
+}
+
+static int __cpuinit cacheinfo_cpu_callback(struct notifier_block *nfb,
+					unsigned long action, void *hcpu)
+{
+	unsigned int cpu = (unsigned long)hcpu;
+	struct sys_device *sys_dev;
+
+	sys_dev = get_cpu_sysdev(cpu);
+	switch (action) {
+	case CPU_ONLINE:
+		cache_add_dev(sys_dev);
+		break;
+	case CPU_DEAD:
+		cache_remove_dev(sys_dev);
+		break;
+	}
+	return NOTIFY_OK;
 }
 
-static struct sysdev_driver cache_sysdev_driver = {
-	.add = cache_add_dev,
-	.remove = __devexit_p(cache_remove_dev),
+static struct notifier_block cacheinfo_cpu_notifier =
+{
+    .notifier_call = cacheinfo_cpu_callback,
 };
 
-/* Register/Unregister the cpu_cache driver */
-static int __devinit cache_register_driver(void)
+static int __cpuinit cache_sysfs_init(void)
 {
+	int i;
+
 	if (num_cache_leaves == 0)
 		return 0;
 
-	return sysdev_driver_register(&cpu_sysdev_class,&cache_sysdev_driver);
+	register_cpu_notifier(&cacheinfo_cpu_notifier);
+
+	for_each_online_cpu(i) {
+		cacheinfo_cpu_callback(&cacheinfo_cpu_notifier, CPU_ONLINE,
+			(void *)(long)i);
+	}
+
+	return 0;
 }
 
-device_initcall(cache_register_driver);
+device_initcall(cache_sysfs_init);
 
 #endif
-

arch/i386/kernel/cpu/mcheck/p6.c

@@ -102,11 +102,16 @@ void __devinit intel_p6_mcheck_init(struct cpuinfo_x86 *c)
 		wrmsr(MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff);
 	nr_mce_banks = l & 0xff;
 
-	/* Don't enable bank 0 on intel P6 cores, it goes bang quickly. */
-	for (i=1; i<nr_mce_banks; i++) {
+	/*
+	 * Following the example in IA-32 SDM Vol 3:
+	 * - MC0_CTL should not be written
+	 * - Status registers on all banks should be cleared on reset
+	 */
+	for (i=1; i<nr_mce_banks; i++)
 		wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
+
+	for (i=0; i<nr_mce_banks; i++)
 		wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
-	}
 
 	set_in_cr4 (X86_CR4_MCE);
 	printk (KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n",

arch/i386/kernel/cpu/mtrr/if.c

@@ -149,60 +149,89 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
 	return -EINVAL;
 }
 
-static int
-mtrr_ioctl(struct inode *inode, struct file *file,
-	   unsigned int cmd, unsigned long __arg)
+static long
+mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
 {
-	int err;
+	int err = 0;
 	mtrr_type type;
 	struct mtrr_sentry sentry;
 	struct mtrr_gentry gentry;
 	void __user *arg = (void __user *) __arg;
 
+	switch (cmd) {
+	case MTRRIOC_ADD_ENTRY:
+	case MTRRIOC_SET_ENTRY:
+	case MTRRIOC_DEL_ENTRY:
+	case MTRRIOC_KILL_ENTRY:
+	case MTRRIOC_ADD_PAGE_ENTRY:
+	case MTRRIOC_SET_PAGE_ENTRY:
+	case MTRRIOC_DEL_PAGE_ENTRY:
+	case MTRRIOC_KILL_PAGE_ENTRY:
+		if (copy_from_user(&sentry, arg, sizeof sentry))
+			return -EFAULT;
+		break;
+	case MTRRIOC_GET_ENTRY:
+	case MTRRIOC_GET_PAGE_ENTRY:
+		if (copy_from_user(&gentry, arg, sizeof gentry))
+			return -EFAULT;
+		break;
+#ifdef CONFIG_COMPAT
+	case MTRRIOC32_ADD_ENTRY:
+	case MTRRIOC32_SET_ENTRY:
+	case MTRRIOC32_DEL_ENTRY:
+	case MTRRIOC32_KILL_ENTRY:
+	case MTRRIOC32_ADD_PAGE_ENTRY:
+	case MTRRIOC32_SET_PAGE_ENTRY:
+	case MTRRIOC32_DEL_PAGE_ENTRY:
+	case MTRRIOC32_KILL_PAGE_ENTRY: {
+		struct mtrr_sentry32 __user *s32 = (struct mtrr_sentry32 __user *)__arg;
+		err = get_user(sentry.base, &s32->base);
+		err |= get_user(sentry.size, &s32->size);
+		err |= get_user(sentry.type, &s32->type);
+		if (err)
+			return err;
+		break;
+	}
+	case MTRRIOC32_GET_ENTRY:
+	case MTRRIOC32_GET_PAGE_ENTRY: {
+		struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)__arg;
+		err = get_user(gentry.regnum, &g32->regnum);
+		err |= get_user(gentry.base, &g32->base);
+		err |= get_user(gentry.size, &g32->size);
+		err |= get_user(gentry.type, &g32->type);
+		if (err)
+			return err;
+		break;
+	}
+#endif
+	}
+
 	switch (cmd) {
 	default:
 		return -ENOTTY;
 	case MTRRIOC_ADD_ENTRY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		if (copy_from_user(&sentry, arg, sizeof sentry))
-			return -EFAULT;
 		err =
 		    mtrr_file_add(sentry.base, sentry.size, sentry.type, 1,
 				  file, 0);
-		if (err < 0)
-			return err;
 		break;
 	case MTRRIOC_SET_ENTRY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		if (copy_from_user(&sentry, arg, sizeof sentry))
-			return -EFAULT;
 		err = mtrr_add(sentry.base, sentry.size, sentry.type, 0);
-		if (err < 0)
-			return err;
 		break;
 	case MTRRIOC_DEL_ENTRY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		if (copy_from_user(&sentry, arg, sizeof sentry))
-			return -EFAULT;
 		err = mtrr_file_del(sentry.base, sentry.size, file, 0);
-		if (err < 0)
-			return err;
 		break;
 	case MTRRIOC_KILL_ENTRY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		if (copy_from_user(&sentry, arg, sizeof sentry))
-			return -EFAULT;
 		err = mtrr_del(-1, sentry.base, sentry.size);
-		if (err < 0)
-			return err;
 		break;
 	case MTRRIOC_GET_ENTRY:
-		if (copy_from_user(&gentry, arg, sizeof gentry))
-			return -EFAULT;
 		if (gentry.regnum >= num_var_ranges)
 			return -EINVAL;
 		mtrr_if->get(gentry.regnum, &gentry.base, &gentry.size, &type);
@@ -217,60 +246,59 @@ mtrr_ioctl(struct inode *inode, struct file *file,
 			gentry.type = type;
 		}
 
-		if (copy_to_user(arg, &gentry, sizeof gentry))
-			return -EFAULT;
 		break;
 	case MTRRIOC_ADD_PAGE_ENTRY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		if (copy_from_user(&sentry, arg, sizeof sentry))
-			return -EFAULT;
 		err =
 		    mtrr_file_add(sentry.base, sentry.size, sentry.type, 1,
 				  file, 1);
-		if (err < 0)
-			return err;
 		break;
 	case MTRRIOC_SET_PAGE_ENTRY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		if (copy_from_user(&sentry, arg, sizeof sentry))
-			return -EFAULT;
 		err = mtrr_add_page(sentry.base, sentry.size, sentry.type, 0);
-		if (err < 0)
-			return err;
 		break;
 	case MTRRIOC_DEL_PAGE_ENTRY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		if (copy_from_user(&sentry, arg, sizeof sentry))
-			return -EFAULT;
 		err = mtrr_file_del(sentry.base, sentry.size, file, 1);
-		if (err < 0)
-			return err;
 		break;
 	case MTRRIOC_KILL_PAGE_ENTRY:
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		if (copy_from_user(&sentry, arg, sizeof sentry))
-			return -EFAULT;
 		err = mtrr_del_page(-1, sentry.base, sentry.size);
-		if (err < 0)
-			return err;
 		break;
 	case MTRRIOC_GET_PAGE_ENTRY:
-		if (copy_from_user(&gentry, arg, sizeof gentry))
-			return -EFAULT;
 		if (gentry.regnum >= num_var_ranges)
 			return -EINVAL;
 		mtrr_if->get(gentry.regnum, &gentry.base, &gentry.size, &type);
 		gentry.type = type;
+		break;
+	}
+
+	if (err)
+		return err;
 
+	switch(cmd) {
+	case MTRRIOC_GET_ENTRY:
+	case MTRRIOC_GET_PAGE_ENTRY:
 		if (copy_to_user(arg, &gentry, sizeof gentry))
-			return -EFAULT;
+			err = -EFAULT;
+		break;
+#ifdef CONFIG_COMPAT
+	case MTRRIOC32_GET_ENTRY:
+	case MTRRIOC32_GET_PAGE_ENTRY: {
+		struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)__arg;
+		err = put_user(gentry.base, &g32->base);
+		err |= put_user(gentry.size, &g32->size);
+		err |= put_user(gentry.regnum, &g32->regnum);
+		err |= put_user(gentry.type, &g32->type);
 		break;
 	}
-	return 0;
+#endif
+	}
+	return err;
 }
 
 static int
@@ -310,7 +338,8 @@ static struct file_operations mtrr_fops = {
 	.read    = seq_read,
 	.llseek  = seq_lseek,
 	.write   = mtrr_write,
-	.ioctl   = mtrr_ioctl,
+	.unlocked_ioctl = mtrr_ioctl,
+	.compat_ioctl = mtrr_ioctl,
 	.release = mtrr_close,
 };
 

arch/i386/kernel/cpu/proc.c

@@ -44,7 +44,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
 		/* Intel-defined (#2) */
-		"pni", NULL, NULL, "monitor", "ds_cpl", NULL, NULL, "est",
+		"pni", NULL, NULL, "monitor", "ds_cpl", "vmx", NULL, "est",
 		"tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,

arch/i386/kernel/crash.c

@@ -21,7 +21,6 @@
 #include <asm/hardirq.h>
 #include <asm/nmi.h>
 #include <asm/hw_irq.h>
-#include <asm/apic.h>
 #include <mach_ipi.h>
 
 
@@ -148,7 +147,6 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu)
 		regs = &fixed_regs;
 	}
 	crash_save_this_cpu(regs, cpu);
-	disable_local_APIC();
 	atomic_dec(&waiting_for_crash_ipi);
 	/* Assume hlt works */
 	halt();
@@ -188,7 +186,6 @@ static void nmi_shootdown_cpus(void)
 	}
 
 	/* Leave the nmi callback set */
-	disable_local_APIC();
 }
 #else
 static void nmi_shootdown_cpus(void)
@@ -213,9 +210,5 @@ void machine_crash_shutdown(struct pt_regs *regs)
 	/* Make a note of crashing cpu. Will be used in NMI callback.*/
 	crashing_cpu = smp_processor_id();
 	nmi_shootdown_cpus();
-	lapic_shutdown();
-#if defined(CONFIG_X86_IO_APIC)
-	disable_IO_APIC();
-#endif
 	crash_save_self(regs);
 }

arch/i386/kernel/i8259.c

@@ -435,4 +435,8 @@ void __init init_IRQ(void)
 		setup_irq(FPU_IRQ, &fpu_irq);
 
 	irq_ctx_init(smp_processor_id());
+
+#ifdef CONFIG_X86_LOCAL_APIC
+	APIC_init();
+#endif
 }

arch/i386/kernel/io_apic.c

@@ -46,6 +46,9 @@
 int (*ioapic_renumber_irq)(int ioapic, int irq);
 atomic_t irq_mis_count;
 
+/* Where if anywhere is the i8259 connect in external int mode */
+static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
+
 static DEFINE_SPINLOCK(ioapic_lock);
 
 /*
@@ -738,7 +741,7 @@ static int find_irq_entry(int apic, int pin, int type)
 /*
  * Find the pin to which IRQ[irq] (ISA) is connected
  */
-static int find_isa_irq_pin(int irq, int type)
+static int __init find_isa_irq_pin(int irq, int type)
 {
 	int i;
 
@@ -758,6 +761,33 @@ static int find_isa_irq_pin(int irq, int type)
 	return -1;
 }
 
+static int __init find_isa_irq_apic(int irq, int type)
+{
+	int i;
+
+	for (i = 0; i < mp_irq_entries; i++) {
+		int lbus = mp_irqs[i].mpc_srcbus;
+
+		if ((mp_bus_id_to_type[lbus] == MP_BUS_ISA ||
+		     mp_bus_id_to_type[lbus] == MP_BUS_EISA ||
+		     mp_bus_id_to_type[lbus] == MP_BUS_MCA ||
+		     mp_bus_id_to_type[lbus] == MP_BUS_NEC98
+		    ) &&
+		    (mp_irqs[i].mpc_irqtype == type) &&
+		    (mp_irqs[i].mpc_srcbusirq == irq))
+			break;
+	}
+	if (i < mp_irq_entries) {
+		int apic;
+		for(apic = 0; apic < nr_ioapics; apic++) {
+			if (mp_ioapics[apic].mpc_apicid == mp_irqs[i].mpc_dstapic)
+				return apic;
+		}
+	}
+
+	return -1;
+}
+
 /*
  * Find a specific PCI IRQ entry.
  * Not an __init, possibly needed by modules
@@ -1253,7 +1283,7 @@ static void __init setup_IO_APIC_irqs(void)
 /*
  * Set up the 8259A-master output pin:
  */
-static void __init setup_ExtINT_IRQ0_pin(unsigned int pin, int vector)
+static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, int vector)
 {
 	struct IO_APIC_route_entry entry;
 	unsigned long flags;
@@ -1287,8 +1317,8 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int pin, int vector)
 	 * Add it to the IO-APIC irq-routing table:
 	 */
 	spin_lock_irqsave(&ioapic_lock, flags);
-	io_apic_write(0, 0x11+2*pin, *(((int *)&entry)+1));
-	io_apic_write(0, 0x10+2*pin, *(((int *)&entry)+0));
+	io_apic_write(apic, 0x11+2*pin, *(((int *)&entry)+1));
+	io_apic_write(apic, 0x10+2*pin, *(((int *)&entry)+0));
 	spin_unlock_irqrestore(&ioapic_lock, flags);
 
 	enable_8259A_irq(0);
@@ -1595,7 +1625,8 @@ void /*__init*/ print_PIC(void)
 static void __init enable_IO_APIC(void)
 {
 	union IO_APIC_reg_01 reg_01;
-	int i;
+	int i8259_apic, i8259_pin;
+	int i, apic;
 	unsigned long flags;
 
 	for (i = 0; i < PIN_MAP_SIZE; i++) {
@@ -1609,11 +1640,52 @@ static void __init enable_IO_APIC(void)
 	/*
 	 * The number of IO-APIC IRQ registers (== #pins):
 	 */
-	for (i = 0; i < nr_ioapics; i++) {
+	for (apic = 0; apic < nr_ioapics; apic++) {
 		spin_lock_irqsave(&ioapic_lock, flags);
-		reg_01.raw = io_apic_read(i, 1);
+		reg_01.raw = io_apic_read(apic, 1);
 		spin_unlock_irqrestore(&ioapic_lock, flags);
-		nr_ioapic_registers[i] = reg_01.bits.entries+1;
+		nr_ioapic_registers[apic] = reg_01.bits.entries+1;
+	}
+	for(apic = 0; apic < nr_ioapics; apic++) {
+		int pin;
+		/* See if any of the pins is in ExtINT mode */
+		for(pin = 0; pin < nr_ioapic_registers[i]; pin++) {
+			struct IO_APIC_route_entry entry;
+			spin_lock_irqsave(&ioapic_lock, flags);
+			*(((int *)&entry) + 0) = io_apic_read(apic, 0x10 + 2 * pin);
+			*(((int *)&entry) + 1) = io_apic_read(apic, 0x11 + 2 * pin);
+			spin_unlock_irqrestore(&ioapic_lock, flags);
+
+
+			/* If the interrupt line is enabled and in ExtInt mode
+			 * I have found the pin where the i8259 is connected.
+			 */
+			if ((entry.mask == 0) && (entry.delivery_mode == dest_ExtINT)) {
+				ioapic_i8259.apic = apic;
+				ioapic_i8259.pin  = pin;
+				goto found_i8259;
+			}
+		}
+	}
+ found_i8259:
+	/* Look to see what if the MP table has reported the ExtINT */
+	/* If we could not find the appropriate pin by looking at the ioapic
+	 * the i8259 probably is not connected the ioapic but give the
+	 * mptable a chance anyway.
+	 */
+	i8259_pin  = find_isa_irq_pin(0, mp_ExtINT);
+	i8259_apic = find_isa_irq_apic(0, mp_ExtINT);
+	/* Trust the MP table if nothing is setup in the hardware */
+	if ((ioapic_i8259.pin == -1) && (i8259_pin >= 0)) {
+		printk(KERN_WARNING "ExtINT not setup in hardware but reported by MP table\n");
+		ioapic_i8259.pin  = i8259_pin;
+		ioapic_i8259.apic = i8259_apic;
+	}
+	/* Complain if the MP table and the hardware disagree */
+	if (((ioapic_i8259.apic != i8259_apic) || (ioapic_i8259.pin != i8259_pin)) &&
+		(i8259_pin >= 0) && (ioapic_i8259.pin >= 0))
+	{
+		printk(KERN_WARNING "ExtINT in hardware and MP table differ\n");
 	}
 
 	/*
@@ -1627,7 +1699,6 @@ static void __init enable_IO_APIC(void)
  */
 void disable_IO_APIC(void)
 {
-	int pin;
 	/*
 	 * Clear the IO-APIC before rebooting:
 	 */
@@ -1638,8 +1709,7 @@ void disable_IO_APIC(void)
 	 * Put that IOAPIC in virtual wire mode
 	 * so legacy interrupts can be delivered.
 	 */
-	pin = find_isa_irq_pin(0, mp_ExtINT);
-	if (pin != -1) {
+	if (ioapic_i8259.pin != -1) {
 		struct IO_APIC_route_entry entry;
 		unsigned long flags;
 
@@ -1650,7 +1720,7 @@ void disable_IO_APIC(void)
 		entry.polarity        = 0; /* High */
 		entry.delivery_status = 0;
 		entry.dest_mode       = 0; /* Physical */
-		entry.delivery_mode   = 7; /* ExtInt */
+		entry.delivery_mode   = dest_ExtINT; /* ExtInt */
 		entry.vector          = 0;
 		entry.dest.physical.physical_dest = 0;
 
@@ -1659,11 +1729,13 @@ void disable_IO_APIC(void)
 		 * Add it to the IO-APIC irq-routing table:
 		 */
 		spin_lock_irqsave(&ioapic_lock, flags);
-		io_apic_write(0, 0x11+2*pin, *(((int *)&entry)+1));
-		io_apic_write(0, 0x10+2*pin, *(((int *)&entry)+0));
+		io_apic_write(ioapic_i8259.apic, 0x11+2*ioapic_i8259.pin,
+			*(((int *)&entry)+1));
+		io_apic_write(ioapic_i8259.apic, 0x10+2*ioapic_i8259.pin,
+			*(((int *)&entry)+0));
 		spin_unlock_irqrestore(&ioapic_lock, flags);
 	}
-	disconnect_bsp_APIC(pin != -1);
+	disconnect_bsp_APIC(ioapic_i8259.pin != -1);
 }
 
 /*
@@ -2113,20 +2185,21 @@ static void setup_nmi (void)
  */
 static inline void unlock_ExtINT_logic(void)
 {
-	int pin, i;
+	int apic, pin, i;
 	struct IO_APIC_route_entry entry0, entry1;
 	unsigned char save_control, save_freq_select;
 	unsigned long flags;
 
-	pin = find_isa_irq_pin(8, mp_INT);
+	pin  = find_isa_irq_pin(8, mp_INT);
+	apic = find_isa_irq_apic(8, mp_INT);
 	if (pin == -1)
 		return;
 
 	spin_lock_irqsave(&ioapic_lock, flags);
-	*(((int *)&entry0) + 1) = io_apic_read(0, 0x11 + 2 * pin);
-	*(((int *)&entry0) + 0) = io_apic_read(0, 0x10 + 2 * pin);
+	*(((int *)&entry0) + 1) = io_apic_read(apic, 0x11 + 2 * pin);
+	*(((int *)&entry0) + 0) = io_apic_read(apic, 0x10 + 2 * pin);
 	spin_unlock_irqrestore(&ioapic_lock, flags);
-	clear_IO_APIC_pin(0, pin);
+	clear_IO_APIC_pin(apic, pin);
 
 	memset(&entry1, 0, sizeof(entry1));
 
@@ -2139,8 +2212,8 @@ static inline void unlock_ExtINT_logic(void)
 	entry1.vector = 0;
 
 	spin_lock_irqsave(&ioapic_lock, flags);
-	io_apic_write(0, 0x11 + 2 * pin, *(((int *)&entry1) + 1));
-	io_apic_write(0, 0x10 + 2 * pin, *(((int *)&entry1) + 0));
+	io_apic_write(apic, 0x11 + 2 * pin, *(((int *)&entry1) + 1));
+	io_apic_write(apic, 0x10 + 2 * pin, *(((int *)&entry1) + 0));
 	spin_unlock_irqrestore(&ioapic_lock, flags);
 
 	save_control = CMOS_READ(RTC_CONTROL);
@@ -2158,11 +2231,11 @@ static inline void unlock_ExtINT_logic(void)
 
 	CMOS_WRITE(save_control, RTC_CONTROL);
 	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-	clear_IO_APIC_pin(0, pin);
+	clear_IO_APIC_pin(apic, pin);
 
 	spin_lock_irqsave(&ioapic_lock, flags);
-	io_apic_write(0, 0x11 + 2 * pin, *(((int *)&entry0) + 1));
-	io_apic_write(0, 0x10 + 2 * pin, *(((int *)&entry0) + 0));
+	io_apic_write(apic, 0x11 + 2 * pin, *(((int *)&entry0) + 1));
+	io_apic_write(apic, 0x10 + 2 * pin, *(((int *)&entry0) + 0));
 	spin_unlock_irqrestore(&ioapic_lock, flags);
 }
 
@@ -2174,7 +2247,7 @@ static inline void unlock_ExtINT_logic(void)
  */
 static inline void check_timer(void)
 {
-	int pin1, pin2;
+	int apic1, pin1, apic2, pin2;
 	int vector;
 
 	/*
@@ -2196,10 +2269,13 @@ static inline void check_timer(void)
 	timer_ack = 1;
 	enable_8259A_irq(0);
 
-	pin1 = find_isa_irq_pin(0, mp_INT);
-	pin2 = find_isa_irq_pin(0, mp_ExtINT);
+	pin1  = find_isa_irq_pin(0, mp_INT);
+	apic1 = find_isa_irq_apic(0, mp_INT);
+	pin2  = ioapic_i8259.pin;
+	apic2 = ioapic_i8259.apic;
 
-	printk(KERN_INFO "..TIMER: vector=0x%02X pin1=%d pin2=%d\n", vector, pin1, pin2);
+	printk(KERN_INFO "..TIMER: vector=0x%02X apic1=%d pin1=%d apic2=%d pin2=%d\n",
+		vector, apic1, pin1, apic2, pin2);
 
 	if (pin1 != -1) {
 		/*
@@ -2216,8 +2292,9 @@ static inline void check_timer(void)
 				clear_IO_APIC_pin(0, pin1);
 			return;
 		}
-		clear_IO_APIC_pin(0, pin1);
-		printk(KERN_ERR "..MP-BIOS bug: 8254 timer not connected to IO-APIC\n");
+		clear_IO_APIC_pin(apic1, pin1);
+		printk(KERN_ERR "..MP-BIOS bug: 8254 timer not connected to "
+				"IO-APIC\n");
 	}
 
 	printk(KERN_INFO "...trying to set up timer (IRQ0) through the 8259A ... ");
@@ -2226,13 +2303,13 @@ static inline void check_timer(void)
 		/*
 		 * legacy devices should be connected to IO APIC #0
 		 */
-		setup_ExtINT_IRQ0_pin(pin2, vector);
+		setup_ExtINT_IRQ0_pin(apic2, pin2, vector);
 		if (timer_irq_works()) {
 			printk("works.\n");
 			if (pin1 != -1)
-				replace_pin_at_irq(0, 0, pin1, 0, pin2);
+				replace_pin_at_irq(0, apic1, pin1, apic2, pin2);
 			else
-				add_pin_to_irq(0, 0, pin2);
+				add_pin_to_irq(0, apic2, pin2);
 			if (nmi_watchdog == NMI_IO_APIC) {
 				setup_nmi();
 			}
@@ -2241,7 +2318,7 @@ static inline void check_timer(void)
 		/*
 		 * Cleanup, just in case ...
 		 */
-		clear_IO_APIC_pin(0, pin2);
+		clear_IO_APIC_pin(apic2, pin2);
 	}
 	printk(" failed.\n");
 
@@ -2310,11 +2387,15 @@ void __init setup_IO_APIC(void)
 	sync_Arb_IDs();
 	setup_IO_APIC_irqs();
 	init_IO_APIC_traps();
-	check_timer();
 	if (!acpi_ioapic)
 		print_IO_APIC();
 }
 
+void __init IO_APIC_late_time_init(void)
+{
+	check_timer();
+}
+
 /*
  *	Called after all the initialization is done. If we didnt find any
  *	APIC bugs then we can allow the modify fast path

arch/i386/kernel/irq.c

@@ -218,7 +218,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
 	if (i == 0) {
 		seq_printf(p, "           ");
-		for_each_cpu(j)
+		for_each_online_cpu(j)
 			seq_printf(p, "CPU%d       ",j);
 		seq_putc(p, '\n');
 	}
@@ -232,7 +232,7 @@ int show_interrupts(struct seq_file *p, void *v)
 #ifndef CONFIG_SMP
 		seq_printf(p, "%10u ", kstat_irqs(i));
 #else
-		for_each_cpu(j)
+		for_each_online_cpu(j)
 			seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
 #endif
 		seq_printf(p, " %14s", irq_desc[i].handler->typename);
@@ -246,12 +246,12 @@ skip:
 		spin_unlock_irqrestore(&irq_desc[i].lock, flags);
 	} else if (i == NR_IRQS) {
 		seq_printf(p, "NMI: ");
-		for_each_cpu(j)
+		for_each_online_cpu(j)
 			seq_printf(p, "%10u ", nmi_count(j));
 		seq_putc(p, '\n');
 #ifdef CONFIG_X86_LOCAL_APIC
 		seq_printf(p, "LOC: ");
-		for_each_cpu(j)
+		for_each_online_cpu(j)
 			seq_printf(p, "%10u ",
 				per_cpu(irq_stat,j).apic_timer_irqs);
 		seq_putc(p, '\n');

arch/i386/kernel/mpparse.c

@@ -69,7 +69,7 @@ unsigned int def_to_bigsmp = 0;
 /* Processor that is doing the boot up */
 unsigned int boot_cpu_physical_apicid = -1U;
 /* Internal processor count */
-static unsigned int __initdata num_processors;
+static unsigned int __devinitdata num_processors;
 
 /* Bitmask of physically existing CPUs */
 physid_mask_t phys_cpu_present_map;
@@ -119,7 +119,7 @@ static int MP_valid_apicid(int apicid, int version)
 }
 #endif
 
-static void __init MP_processor_info (struct mpc_config_processor *m)
+static void __devinit MP_processor_info (struct mpc_config_processor *m)
 {
  	int ver, apicid;
 	physid_mask_t phys_cpu;
@@ -182,17 +182,6 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
 		boot_cpu_physical_apicid = m->mpc_apicid;
 	}
 
-	if (num_processors >= NR_CPUS) {
-		printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached."
-			"  Processor ignored.\n", NR_CPUS); 
-		return;
-	}
-
-	if (num_processors >= maxcpus) {
-		printk(KERN_WARNING "WARNING: maxcpus limit of %i reached."
-			" Processor ignored.\n", maxcpus); 
-		return;
-	}
 	ver = m->mpc_apicver;
 
 	if (!MP_valid_apicid(apicid, ver)) {
@@ -201,11 +190,6 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
 		return;
 	}
 
-	cpu_set(num_processors, cpu_possible_map);
-	num_processors++;
-	phys_cpu = apicid_to_cpu_present(apicid);
-	physids_or(phys_cpu_present_map, phys_cpu_present_map, phys_cpu);
-
 	/*
 	 * Validate version
 	 */
@@ -216,6 +200,25 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
 		ver = 0x10;
 	}
 	apic_version[m->mpc_apicid] = ver;
+
+	phys_cpu = apicid_to_cpu_present(apicid);
+	physids_or(phys_cpu_present_map, phys_cpu_present_map, phys_cpu);
+
+	if (num_processors >= NR_CPUS) {
+		printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached."
+			"  Processor ignored.\n", NR_CPUS);
+		return;
+	}
+
+	if (num_processors >= maxcpus) {
+		printk(KERN_WARNING "WARNING: maxcpus limit of %i reached."
+			" Processor ignored.\n", maxcpus);
+		return;
+	}
+
+	cpu_set(num_processors, cpu_possible_map);
+	num_processors++;
+
 	if ((num_processors > 8) &&
 	    APIC_XAPIC(ver) &&
 	    (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL))
@@ -834,7 +837,7 @@ void __init mp_register_lapic_address (
 }
 
 
-void __init mp_register_lapic (
+void __devinit mp_register_lapic (
 	u8			id, 
 	u8			enabled)
 {

arch/i386/kernel/nmi.c

@@ -100,16 +100,44 @@ 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)
 
+#ifdef CONFIG_SMP
+/* The performance counters used by NMI_LOCAL_APIC don't trigger when
+ * the CPU is idle. To make sure the NMI watchdog really ticks on all
+ * CPUs during the test make them busy.
+ */
+static __init void nmi_cpu_busy(void *data)
+{
+	volatile int *endflag = data;
+	local_irq_enable();
+	/* Intentionally don't use cpu_relax here. This is
+	   to make sure that the performance counter really ticks,
+	   even if there is a simulator or similar that catches the
+	   pause instruction. On a real HT machine this is fine because
+	   all other CPUs are busy with "useless" delay loops and don't
+	   care if they get somewhat less cycles. */
+	while (*endflag == 0)
+		barrier();
+}
+#endif
+
 static int __init check_nmi_watchdog(void)
 {
-	unsigned int prev_nmi_count[NR_CPUS];
+	volatile int endflag = 0;
+	unsigned int *prev_nmi_count;
 	int cpu;
 
 	if (nmi_watchdog == NMI_NONE)
 		return 0;
 
+	prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL);
+	if (!prev_nmi_count)
+		return -1;
+
 	printk(KERN_INFO "Testing NMI watchdog ... ");
 
+	if (nmi_watchdog == NMI_LOCAL_APIC)
+		smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0);
+
 	for (cpu = 0; cpu < NR_CPUS; cpu++)
 		prev_nmi_count[cpu] = per_cpu(irq_stat, cpu).__nmi_count;
 	local_irq_enable();
@@ -123,12 +151,18 @@ static int __init check_nmi_watchdog(void)
 			continue;
 #endif
 		if (nmi_count(cpu) - prev_nmi_count[cpu] <= 5) {
-			printk("CPU#%d: NMI appears to be stuck!\n", cpu);
+			endflag = 1;
+			printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n",
+				cpu,
+				prev_nmi_count[cpu],
+				nmi_count(cpu));
 			nmi_active = 0;
 			lapic_nmi_owner &= ~LAPIC_NMI_WATCHDOG;
+			kfree(prev_nmi_count);
 			return -1;
 		}
 	}
+	endflag = 1;
 	printk("OK.\n");
 
 	/* now that we know it works we can reduce NMI frequency to
@@ -136,6 +170,7 @@ static int __init check_nmi_watchdog(void)
 	if (nmi_watchdog == NMI_LOCAL_APIC)
 		nmi_hz = 1;
 
+	kfree(prev_nmi_count);
 	return 0;
 }
 /* This needs to happen later in boot so counters are working */

arch/i386/kernel/ptrace.c

@@ -354,7 +354,7 @@ ptrace_set_thread_area(struct task_struct *child,
 	return 0;
 }
 
-asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
 {
 	struct task_struct *child;
 	struct user * dummy = NULL;

arch/i386/kernel/reboot_fixups.c

@@ -44,7 +44,7 @@ void mach_reboot_fixups(void)
 
 	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);
+		dev = pci_get_device(cur->vendor, cur->device, NULL);
 		if (!dev)
 			continue;
 

arch/i386/kernel/setup.c

@@ -389,14 +389,24 @@ static void __init limit_regions(unsigned long long size)
 		}
 	}
 	for (i = 0; i < e820.nr_map; i++) {
-		if (e820.map[i].type == E820_RAM) {
-			current_addr = e820.map[i].addr + e820.map[i].size;
-			if (current_addr >= size) {
-				e820.map[i].size -= current_addr-size;
-				e820.nr_map = i + 1;
-				return;
-			}
+		current_addr = e820.map[i].addr + e820.map[i].size;
+		if (current_addr < size)
+			continue;
+
+		if (e820.map[i].type != E820_RAM)
+			continue;
+
+		if (e820.map[i].addr >= size) {
+			/*
+			 * This region starts past the end of the
+			 * requested size, skip it completely.
+			 */
+			e820.nr_map = i;
+		} else {
+			e820.nr_map = i + 1;
+			e820.map[i].size -= current_addr - size;
 		}
+		return;
 	}
 }
 

arch/i386/kernel/smpboot.c

@@ -87,7 +87,11 @@ EXPORT_SYMBOL(cpu_online_map);
 cpumask_t cpu_callin_map;
 cpumask_t cpu_callout_map;
 EXPORT_SYMBOL(cpu_callout_map);
+#ifdef CONFIG_HOTPLUG_CPU
+cpumask_t cpu_possible_map = CPU_MASK_ALL;
+#else
 cpumask_t cpu_possible_map;
+#endif
 EXPORT_SYMBOL(cpu_possible_map);
 static cpumask_t smp_commenced_mask;
 
@@ -1074,6 +1078,16 @@ void *xquad_portio;
 EXPORT_SYMBOL(xquad_portio);
 #endif
 
+/*
+ * Fall back to non SMP mode after errors.
+ *
+ */
+static __init void disable_smp(void)
+{
+	cpu_set(0, cpu_sibling_map[0]);
+	cpu_set(0, cpu_core_map[0]);
+}
+
 static void __init smp_boot_cpus(unsigned int max_cpus)
 {
 	int apicid, cpu, bit, kicked;
@@ -1086,7 +1100,6 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 	printk("CPU%d: ", 0);
 	print_cpu_info(&cpu_data[0]);
 
-	boot_cpu_physical_apicid = GET_APIC_ID(apic_read(APIC_ID));
 	boot_cpu_logical_apicid = logical_smp_processor_id();
 	x86_cpu_to_apicid[0] = boot_cpu_physical_apicid;
 
@@ -1098,68 +1111,27 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 	cpus_clear(cpu_core_map[0]);
 	cpu_set(0, cpu_core_map[0]);
 
+	map_cpu_to_logical_apicid();
+
 	/*
 	 * If we couldn't find an SMP configuration at boot time,
 	 * get out of here now!
 	 */
 	if (!smp_found_config && !acpi_lapic) {
 		printk(KERN_NOTICE "SMP motherboard not detected.\n");
-		smpboot_clear_io_apic_irqs();
-		phys_cpu_present_map = physid_mask_of_physid(0);
-		if (APIC_init_uniprocessor())
-			printk(KERN_NOTICE "Local APIC not detected."
-					   " Using dummy APIC emulation.\n");
-		map_cpu_to_logical_apicid();
-		cpu_set(0, cpu_sibling_map[0]);
-		cpu_set(0, cpu_core_map[0]);
+		disable_smp();
 		return;
 	}
 
-	/*
-	 * Should not be necessary because the MP table should list the boot
-	 * CPU too, but we do it for the sake of robustness anyway.
-	 * Makes no sense to do this check in clustered apic mode, so skip it
-	 */
-	if (!check_phys_apicid_present(boot_cpu_physical_apicid)) {
-		printk("weird, boot CPU (#%d) not listed by the BIOS.\n",
-				boot_cpu_physical_apicid);
-		physid_set(hard_smp_processor_id(), phys_cpu_present_map);
-	}
-
-	/*
-	 * If we couldn't find a local APIC, then get out of here now!
-	 */
-	if (APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid]) && !cpu_has_apic) {
-		printk(KERN_ERR "BIOS bug, local APIC #%d not detected!...\n",
-			boot_cpu_physical_apicid);
-		printk(KERN_ERR "... forcing use of dummy APIC emulation. (tell your hw vendor)\n");
-		smpboot_clear_io_apic_irqs();
-		phys_cpu_present_map = physid_mask_of_physid(0);
-		cpu_set(0, cpu_sibling_map[0]);
-		cpu_set(0, cpu_core_map[0]);
-		return;
-	}
-
-	verify_local_APIC();
-
 	/*
 	 * If SMP should be disabled, then really disable it!
 	 */
-	if (!max_cpus) {
-		smp_found_config = 0;
-		printk(KERN_INFO "SMP mode deactivated, forcing use of dummy APIC emulation.\n");
-		smpboot_clear_io_apic_irqs();
-		phys_cpu_present_map = physid_mask_of_physid(0);
-		cpu_set(0, cpu_sibling_map[0]);
-		cpu_set(0, cpu_core_map[0]);
+	if (!max_cpus || (enable_local_apic < 0)) {
+		printk(KERN_INFO "SMP mode deactivated.\n");
+		disable_smp();
 		return;
 	}
 
-	connect_bsp_APIC();
-	setup_local_APIC();
-	map_cpu_to_logical_apicid();
-
-
 	setup_portio_remap();
 
 	/*
@@ -1240,10 +1212,6 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 	cpu_set(0, cpu_sibling_map[0]);
 	cpu_set(0, cpu_core_map[0]);
 
-	smpboot_setup_io_apic();
-
-	setup_boot_APIC_clock();
-
 	/*
 	 * Synchronize the TSC with the AP
 	 */

arch/i386/kernel/srat.c

@@ -327,7 +327,12 @@ int __init get_memcfg_from_srat(void)
 	int tables = 0;
 	int i = 0;
 
-	acpi_find_root_pointer(ACPI_PHYSICAL_ADDRESSING, rsdp_address);
+	if (ACPI_FAILURE(acpi_find_root_pointer(ACPI_PHYSICAL_ADDRESSING,
+						rsdp_address))) {
+		printk("%s: System description tables not found\n",
+		       __FUNCTION__);
+		goto out_err;
+	}
 
 	if (rsdp_address->pointer_type == ACPI_PHYSICAL_POINTER) {
 		printk("%s: assigning address to rsdp\n", __FUNCTION__);

arch/i386/kernel/time.c

@@ -74,10 +74,6 @@ int pit_latch_buggy;              /* extern */
 
 #include "do_timer.h"
 
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 unsigned int cpu_khz;	/* Detected as we calibrate the TSC */
 EXPORT_SYMBOL(cpu_khz);
 
@@ -444,8 +440,8 @@ static int time_init_device(void)
 
 device_initcall(time_init_device);
 
-#ifdef CONFIG_HPET_TIMER
 extern void (*late_time_init)(void);
+#ifdef CONFIG_HPET_TIMER
 /* Duplicate of time_init() below, with hpet_enable part added */
 static void __init hpet_time_init(void)
 {
@@ -462,6 +458,11 @@ static void __init hpet_time_init(void)
 	printk(KERN_INFO "Using %s for high-res timesource\n",cur_timer->name);
 
 	time_init_hook();
+
+#ifdef CONFIG_X86_LOCAL_APIC
+	if (enable_local_apic >= 0)
+		APIC_late_time_init();
+#endif
 }
 #endif
 
@@ -486,4 +487,9 @@ void __init time_init(void)
 	printk(KERN_INFO "Using %s for high-res timesource\n",cur_timer->name);
 
 	time_init_hook();
+
+#ifdef CONFIG_X86_LOCAL_APIC
+	if (enable_local_apic >= 0)
+		late_time_init = APIC_late_time_init;
+#endif
 }

arch/i386/kernel/time_hpet.c

@@ -275,6 +275,7 @@ static unsigned long PIE_freq = DEFAULT_RTC_INT_FREQ;
 static unsigned long PIE_count;
 
 static unsigned long hpet_rtc_int_freq; /* RTC interrupt frequency */
+static unsigned int hpet_t1_cmp; /* cached comparator register */
 
 /*
  * Timer 1 for RTC, we do not use periodic interrupt feature,
@@ -306,10 +307,12 @@ int hpet_rtc_timer_init(void)
 	cnt = hpet_readl(HPET_COUNTER);
 	cnt += ((hpet_tick*HZ)/hpet_rtc_int_freq);
 	hpet_writel(cnt, HPET_T1_CMP);
+	hpet_t1_cmp = cnt;
 	local_irq_restore(flags);
 
 	cfg = hpet_readl(HPET_T1_CFG);
-	cfg |= HPET_TN_ENABLE | HPET_TN_SETVAL | HPET_TN_32BIT;
+	cfg &= ~HPET_TN_PERIODIC;
+	cfg |= HPET_TN_ENABLE | HPET_TN_32BIT;
 	hpet_writel(cfg, HPET_T1_CFG);
 
 	return 1;
@@ -319,8 +322,12 @@ static void hpet_rtc_timer_reinit(void)
 {
 	unsigned int cfg, cnt;
 
-	if (!(PIE_on | AIE_on | UIE_on))
+	if (unlikely(!(PIE_on | AIE_on | UIE_on))) {
+		cfg = hpet_readl(HPET_T1_CFG);
+		cfg &= ~HPET_TN_ENABLE;
+		hpet_writel(cfg, HPET_T1_CFG);
 		return;
+	}
 
 	if (PIE_on && (PIE_freq > DEFAULT_RTC_INT_FREQ))
 		hpet_rtc_int_freq = PIE_freq;
@@ -328,15 +335,10 @@ static void hpet_rtc_timer_reinit(void)
 		hpet_rtc_int_freq = DEFAULT_RTC_INT_FREQ;
 
 	/* It is more accurate to use the comparator value than current count.*/
-	cnt = hpet_readl(HPET_T1_CMP);
+	cnt = hpet_t1_cmp;
 	cnt += hpet_tick*HZ/hpet_rtc_int_freq;
 	hpet_writel(cnt, HPET_T1_CMP);
-
-	cfg = hpet_readl(HPET_T1_CFG);
-	cfg |= HPET_TN_ENABLE | HPET_TN_SETVAL | HPET_TN_32BIT;
-	hpet_writel(cfg, HPET_T1_CFG);
-
-	return;
+	hpet_t1_cmp = cnt;
 }
 
 /*

arch/i386/kernel/timers/timer_hpet.c

@@ -30,23 +30,28 @@ static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED;
  *  basic equation:
  *		ns = cycles / (freq / ns_per_sec)
  *		ns = cycles * (ns_per_sec / freq)
- *		ns = cycles * (10^9 / (cpu_mhz * 10^6))
- *		ns = cycles * (10^3 / cpu_mhz)
+ *		ns = cycles * (10^9 / (cpu_khz * 10^3))
+ *		ns = cycles * (10^6 / cpu_khz)
  *
  *	Then we use scaling math (suggested by george@mvista.com) to get:
- *		ns = cycles * (10^3 * SC / cpu_mhz) / SC
+ *		ns = cycles * (10^6 * SC / cpu_khz) / SC
  *		ns = cycles * cyc2ns_scale / SC
  *
  *	And since SC is a constant power of two, we can convert the div
  *  into a shift.
+ *
+ *  We can use khz divisor instead of mhz to keep a better percision, since
+ *  cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
+ *  (mathieu.desnoyers@polymtl.ca)
+ *
  *			-johnstul@us.ibm.com "math is hard, lets go shopping!"
  */
 static unsigned long cyc2ns_scale;
 #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
 
-static inline void set_cyc2ns_scale(unsigned long cpu_mhz)
+static inline void set_cyc2ns_scale(unsigned long cpu_khz)
 {
-	cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz;
+	cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz;
 }
 
 static inline unsigned long long cycles_2_ns(unsigned long long cyc)
@@ -163,7 +168,7 @@ static int __init init_hpet(char* override)
 				printk("Detected %u.%03u MHz processor.\n",
 					cpu_khz / 1000, cpu_khz % 1000);
 			}
-			set_cyc2ns_scale(cpu_khz/1000);
+			set_cyc2ns_scale(cpu_khz);
 		}
 		/* set this only when cpu_has_tsc */
 		timer_hpet.read_timer = read_timer_tsc;

arch/i386/kernel/timers/timer_tsc.c

@@ -49,23 +49,28 @@ static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED;
  *  basic equation:
  *		ns = cycles / (freq / ns_per_sec)
  *		ns = cycles * (ns_per_sec / freq)
- *		ns = cycles * (10^9 / (cpu_mhz * 10^6))
- *		ns = cycles * (10^3 / cpu_mhz)
+ *		ns = cycles * (10^9 / (cpu_khz * 10^3))
+ *		ns = cycles * (10^6 / cpu_khz)
  *
  *	Then we use scaling math (suggested by george@mvista.com) to get:
- *		ns = cycles * (10^3 * SC / cpu_mhz) / SC
+ *		ns = cycles * (10^6 * SC / cpu_khz) / SC
  *		ns = cycles * cyc2ns_scale / SC
  *
  *	And since SC is a constant power of two, we can convert the div
- *  into a shift.   
+ *  into a shift.
+ *
+ *  We can use khz divisor instead of mhz to keep a better percision, since
+ *  cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
+ *  (mathieu.desnoyers@polymtl.ca)
+ *
  *			-johnstul@us.ibm.com "math is hard, lets go shopping!"
  */
 static unsigned long cyc2ns_scale; 
 #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
 
-static inline void set_cyc2ns_scale(unsigned long cpu_mhz)
+static inline void set_cyc2ns_scale(unsigned long cpu_khz)
 {
-	cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz;
+	cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz;
 }
 
 static inline unsigned long long cycles_2_ns(unsigned long long cyc)
@@ -286,7 +291,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
 		if (use_tsc) {
 			if (!(freq->flags & CPUFREQ_CONST_LOOPS)) {
 				fast_gettimeoffset_quotient = cpufreq_scale(fast_gettimeoffset_ref, freq->new, ref_freq);
-				set_cyc2ns_scale(cpu_khz/1000);
+				set_cyc2ns_scale(cpu_khz);
 			}
 		}
 #endif
@@ -536,7 +541,7 @@ static int __init init_tsc(char* override)
 				printk("Detected %u.%03u MHz processor.\n",
 					cpu_khz / 1000, cpu_khz % 1000);
 			}
-			set_cyc2ns_scale(cpu_khz/1000);
+			set_cyc2ns_scale(cpu_khz);
 			return 0;
 		}
 	}

arch/i386/kernel/traps.c

@@ -488,6 +488,7 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs,
 				tss->io_bitmap_max - thread->io_bitmap_max);
 		tss->io_bitmap_max = thread->io_bitmap_max;
 		tss->io_bitmap_base = IO_BITMAP_OFFSET;
+		tss->io_bitmap_owner = thread;
 		put_cpu();
 		return;
 	}

arch/i386/mach-es7000/es7000.h

@@ -24,6 +24,15 @@
  * http://www.unisys.com
  */
 
+/*
+ * ES7000 chipsets
+ */
+
+#define NON_UNISYS		0
+#define ES7000_CLASSIC		1
+#define ES7000_ZORRO		2
+
+
 #define	MIP_REG			1
 #define	MIP_PSAI_REG		4
 
@@ -106,6 +115,6 @@ struct mip_reg {
 
 extern int parse_unisys_oem (char *oemptr);
 extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
-extern void setup_unisys ();
+extern void setup_unisys(void);
 extern int es7000_start_cpu(int cpu, unsigned long eip);
 extern void es7000_sw_apic(void);

arch/i386/mach-es7000/es7000plat.c

@@ -62,6 +62,9 @@ static unsigned int base;
 static int
 es7000_rename_gsi(int ioapic, int gsi)
 {
+	if (es7000_plat == ES7000_ZORRO)
+		return gsi;
+
 	if (!base) {
 		int i;
 		for (i = 0; i < nr_ioapics; i++)
@@ -76,7 +79,7 @@ es7000_rename_gsi(int ioapic, int gsi)
 #endif	/* (CONFIG_X86_IO_APIC) && (CONFIG_ACPI) */
 
 void __init
-setup_unisys ()
+setup_unisys(void)
 {
 	/*
 	 * Determine the generation of the ES7000 currently running.
@@ -86,9 +89,9 @@ setup_unisys ()
 	 *
 	 */
 	if (!(boot_cpu_data.x86 <= 15 && boot_cpu_data.x86_model <= 2))
-		es7000_plat = 2;
+		es7000_plat = ES7000_ZORRO;
 	else
-		es7000_plat = 1;
+		es7000_plat = ES7000_CLASSIC;
 	ioapic_renumber_irq = es7000_rename_gsi;
 }
 
@@ -151,7 +154,7 @@ parse_unisys_oem (char *oemptr)
 	}
 
 	if (success < 2) {
-		es7000_plat = 0;
+		es7000_plat = NON_UNISYS;
 	} else
 		setup_unisys();
 	return es7000_plat;

arch/i386/mm/fault.c

@@ -108,7 +108,7 @@ static inline unsigned long get_segment_eip(struct pt_regs *regs,
 		desc = (void *)desc + (seg & ~7);
 	} else {
 		/* Must disable preemption while reading the GDT. */
-		desc = (u32 *)&per_cpu(cpu_gdt_table, get_cpu());
+ 		desc = (u32 *)get_cpu_gdt_table(get_cpu());
 		desc = (void *)desc + (seg & ~7);
 	}
 

arch/i386/pci/irq.c

@@ -547,31 +547,48 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
 	return 0;
 }
 
-static __init int via_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
+static __init int via_router_probe(struct irq_router *r,
+				struct pci_dev *router, u16 device)
 {
 	/* FIXME: We should move some of the quirk fixup stuff here */
 
-	if (router->device == PCI_DEVICE_ID_VIA_82C686 &&
-			device == PCI_DEVICE_ID_VIA_82C586_0) {
-		/* Asus k7m bios wrongly reports 82C686A as 586-compatible */
-		device = PCI_DEVICE_ID_VIA_82C686;
+	/*
+	 * work arounds for some buggy BIOSes
+	 */
+	if (device == PCI_DEVICE_ID_VIA_82C586_0) {
+		switch(router->device) {
+		case PCI_DEVICE_ID_VIA_82C686:
+			/*
+			 * Asus k7m bios wrongly reports 82C686A
+			 * as 586-compatible
+			 */
+			device = PCI_DEVICE_ID_VIA_82C686;
+			break;
+		case PCI_DEVICE_ID_VIA_8235:
+			/**
+			 * Asus a7v-x bios wrongly reports 8235
+			 * as 586-compatible
+			 */
+			device = PCI_DEVICE_ID_VIA_8235;
+			break;
+		}
 	}
 
-	switch(device)
-	{
-		case PCI_DEVICE_ID_VIA_82C586_0:
-			r->name = "VIA";
-			r->get = pirq_via586_get;
-			r->set = pirq_via586_set;
-			return 1;
-		case PCI_DEVICE_ID_VIA_82C596:
-		case PCI_DEVICE_ID_VIA_82C686:
-		case PCI_DEVICE_ID_VIA_8231:
+	switch(device) {
+	case PCI_DEVICE_ID_VIA_82C586_0:
+		r->name = "VIA";
+		r->get = pirq_via586_get;
+		r->set = pirq_via586_set;
+		return 1;
+	case PCI_DEVICE_ID_VIA_82C596:
+	case PCI_DEVICE_ID_VIA_82C686:
+	case PCI_DEVICE_ID_VIA_8231:
+	case PCI_DEVICE_ID_VIA_8235:
 		/* FIXME: add new ones for 8233/5 */
-			r->name = "VIA";
-			r->get = pirq_via_get;
-			r->set = pirq_via_set;
-			return 1;
+		r->name = "VIA";
+		r->get = pirq_via_get;
+		r->set = pirq_via_set;
+		return 1;
 	}
 	return 0;
 }

arch/i386/power/cpu.c

@@ -51,16 +51,14 @@ void save_processor_state(void)
 	__save_processor_state(&saved_context);
 }
 
-static void
-do_fpu_end(void)
+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();
-	mxcsr_feature_mask_init();
+	/*
+	 * Restore FPU regs if necessary.
+	 */
+	kernel_fpu_end();
 }
 
-
 static void fix_processor_context(void)
 {
 	int cpu = smp_processor_id();

arch/ia64/ia32/sys_ia32.c

@@ -36,6 +36,7 @@
 #include <linux/uio.h>
 #include <linux/nfs_fs.h>
 #include <linux/quota.h>
+#include <linux/syscalls.h>
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/cache.h>

arch/ia64/kernel/cyclone.c

@@ -2,6 +2,7 @@
 #include <linux/smp.h>
 #include <linux/time.h>
 #include <linux/errno.h>
+#include <linux/timex.h>
 #include <asm/io.h>
 
 /* IBM Summit (EXA) Cyclone counter code*/

arch/ia64/kernel/time.c

@@ -32,10 +32,6 @@
 
 extern unsigned long wall_jiffies;
 
-u64 jiffies_64 __cacheline_aligned_in_smp = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
 #define TIME_KEEPER_ID	0	/* smp_processor_id() of time-keeper */
 
 #ifdef CONFIG_IA64_DEBUG_IRQ

arch/m32r/kernel/entry.S

@@ -653,8 +653,6 @@ ENTRY(rie_handler)
 	SAVE_ALL
 	mvfc	r0, bpc
 	ld	r1, @r0
-	seth	r0, #0xa0f0
-	st	r1, @r0
 	ldi	r1, #0x20			; error_code
 	mv	r0, sp				; pt_regs
 	bl	do_rie_handler

arch/m32r/kernel/io_m32700ut.c

@@ -64,11 +64,11 @@ static inline void *__port2addr_ata(unsigned long port)
  * from 0x10000000 to 0x13ffffff on physical address.
  * The base address of LAN controller(LAN91C111) is 0x300.
  */
-#define LAN_IOSTART	0x300
-#define LAN_IOEND	0x320
+#define LAN_IOSTART	0xa0000300
+#define LAN_IOEND	0xa0000320
 static inline void *_port2addr_ne(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET + 0x10000000);
+	return (void *)(port + 0x10000000);
 }
 static inline void *_port2addr_usb(unsigned long port)
 {

arch/m32r/kernel/io_mappi.c

@@ -31,7 +31,7 @@ extern void pcc_iowrite(int, unsigned long, void *, size_t, size_t, int);
 
 static inline void *_port2addr(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET);
+	return (void *)(port | (NONCACHE_OFFSET));
 }
 
 static inline void *_port2addr_ne(unsigned long port)

arch/m32r/kernel/io_mappi2.c

@@ -33,12 +33,9 @@ extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
 
 static inline void *_port2addr(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET);
+	return (void *)(port | (NONCACHE_OFFSET));
 }
 
-#define LAN_IOSTART	0x300
-#define LAN_IOEND	0x320
-
 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 static inline void *__port2addr_ata(unsigned long port)
 {
@@ -59,15 +56,17 @@ static inline void *__port2addr_ata(unsigned long port)
 }
 #endif
 
+#define LAN_IOSTART	0xa0000300
+#define LAN_IOEND	0xa0000320
 #ifdef CONFIG_CHIP_OPSP
 static inline void *_port2addr_ne(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET + 0x10000000);
+	return (void *)(port + 0x10000000);
 }
 #else
 static inline void *_port2addr_ne(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET + 0x04000000);
+	return (void *)(port + 0x04000000);
 }
 #endif
 static inline void *_port2addr_usb(unsigned long port)

arch/m32r/kernel/io_mappi3.c

@@ -36,9 +36,6 @@ static inline void *_port2addr(unsigned long port)
 	return (void *)(port + NONCACHE_OFFSET);
 }
 
-#define LAN_IOSTART	0x300
-#define LAN_IOEND	0x320
-
 #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
 static inline void *__port2addr_ata(unsigned long port)
 {
@@ -59,9 +56,11 @@ static inline void *__port2addr_ata(unsigned long port)
 }
 #endif
 
+#define LAN_IOSTART	0xa0000300
+#define LAN_IOEND	0xa0000320
 static inline void *_port2addr_ne(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET + 0x10000000);
+	return (void *)(port + 0x10000000);
 }
 
 static inline void *_port2addr_usb(unsigned long port)

arch/m32r/kernel/io_oaks32r.c

@@ -16,7 +16,7 @@
 
 static inline void *_port2addr(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET);
+	return (void *)(port | (NONCACHE_OFFSET));
 }
 
 static inline  void *_port2addr_ne(unsigned long port)

arch/m32r/kernel/io_opsput.c

@@ -36,7 +36,7 @@ extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
 
 static inline void *_port2addr(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET);
+	return (void *)(port | (NONCACHE_OFFSET));
 }
 
 /*
@@ -44,11 +44,11 @@ static inline void *_port2addr(unsigned long port)
  * from 0x10000000 to 0x13ffffff on physical address.
  * The base address of LAN controller(LAN91C111) is 0x300.
  */
-#define LAN_IOSTART	0x300
-#define LAN_IOEND	0x320
+#define LAN_IOSTART	0xa0000300
+#define LAN_IOEND	0xa0000320
 static inline void *_port2addr_ne(unsigned long port)
 {
-	return (void *)(port + NONCACHE_OFFSET + 0x10000000);
+	return (void *)(port + 0x10000000);
 }
 static inline void *_port2addr_usb(unsigned long port)
 {