Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

.mailmap

@@ -80,6 +80,8 @@ Nguyen Anh Quynh <aquynh@gmail.com>
 Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
 Patrick Mochel <mochel@digitalimplant.org>
 Peter A Jonsson <pj@ludd.ltu.se>
+Peter Oruba <peter@oruba.de>
+Peter Oruba <peter.oruba@amd.com>
 Praveen BP <praveenbp@ti.com>
 Rajesh Shah <rajesh.shah@intel.com>
 Ralf Baechle <ralf@linux-mips.org>

Documentation/00-INDEX

@@ -172,7 +172,7 @@ i2c/
 	- directory with info about the I2C bus/protocol (2 wire, kHz speed).
 i2o/
 	- directory with info about the Linux I2O subsystem.
-i386/
+x86/i386/
 	- directory with info about Linux on Intel 32 bit architecture.
 ia64/
 	- directory with info about Linux on Intel 64 bit architecture.
@@ -382,7 +382,7 @@ w1/
 	- directory with documents regarding the 1-wire (w1) subsystem.
 watchdog/
 	- how to auto-reboot Linux if it has "fallen and can't get up". ;-)
-x86_64/
+x86/x86_64/
 	- directory with info on Linux support for AMD x86-64 (Hammer) machines.
 zorro.txt
 	- info on writing drivers for Zorro bus devices found on Amigas.

Documentation/DocBook/Makefile

@@ -136,7 +136,7 @@ quiet_cmd_db2ps = PS      $@
 %.ps : %.xml
 	$(call cmd,db2ps)
 
-quiet_cmd_db2pdf = PDF      $@
+quiet_cmd_db2pdf = PDF     $@
       cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
 %.pdf : %.xml
 	$(call cmd,db2pdf)
@@ -148,7 +148,7 @@ build_main_index = rm -rf $(main_idx) && \
 		   echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
 		   cat $(HTML) >> $(main_idx)
 
-quiet_cmd_db2html = HTML   $@
+quiet_cmd_db2html = HTML    $@
       cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
 		echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
         $(patsubst %.html,%,$(notdir $@))</a><p>' > $@

Documentation/DocBook/deviceiobook.tmpl

@@ -24,7 +24,7 @@
     <surname>Cox</surname>
     <affiliation>
      <address>
-      <email>alan@redhat.com</email>
+      <email>alan@lxorguk.ukuu.org.uk</email>
      </address>
     </affiliation>
    </author>

Documentation/DocBook/mcabook.tmpl

@@ -12,7 +12,7 @@
     <surname>Cox</surname>
     <affiliation>
      <address>
-      <email>alan@redhat.com</email>
+      <email>alan@lxorguk.ukuu.org.uk</email>
      </address>
     </affiliation>
    </author>

Documentation/DocBook/wanbook.tmpl

@@ -12,7 +12,7 @@
     <surname>Cox</surname>
     <affiliation>
      <address>
-      <email>alan@redhat.com</email>
+      <email>alan@lxorguk.ukuu.org.uk</email>
      </address>
     </affiliation>
    </author>

Documentation/DocBook/z8530book.tmpl

@@ -12,7 +12,7 @@
     <surname>Cox</surname>
     <affiliation>
      <address>
-      <email>alan@redhat.com</email>
+      <email>alan@lxorguk.ukuu.org.uk</email>
      </address>
     </affiliation>
    </author>

Documentation/ManagementStyle

@@ -17,7 +17,7 @@ companies.  If you sign purchase orders or you have any clue about the
 budget of your group, you're almost certainly not a kernel manager. 
 These suggestions may or may not apply to you. 
 
-First off, I'd suggest buying "Seven Habits of Highly Successful
+First off, I'd suggest buying "Seven Habits of Highly Effective
 People", and NOT read it.  Burn it, it's a great symbolic gesture. 
 
 (*) This document does so not so much by answering the question, but by

Documentation/accounting/.gitignore

@@ -0,0 +1 @@
+getdelays

Documentation/arm/empeg/README

@@ -1,13 +0,0 @@
-Empeg, Ltd's Empeg MP3 Car Audio Player
-
-The initial design is to go in your car, but you can use it at home, on a
-boat... almost anywhere. The principle is to store CD-quality music using
-MPEG technology onto a hard disk in the unit, and use the power of the
-embedded computer to serve up the music you want.
-
-For more details, see:
-
-	http://www.empeg.com
-
-
-

Documentation/arm/empeg/ir.txt

@@ -1,49 +0,0 @@
-Infra-red driver documentation.
-
-Mike Crowe <mac@empeg.com>
-(C) Empeg Ltd 1999
-
-Not a lot here yet :-)
-
-The Kenwood KCA-R6A remote control generates a sequence like the following:
-
-Go low for approx 16T (Around 9000us)
-Go high for approx 8T (Around 4000us)
-Go low for less than 2T (Around 750us)
-
-For each of the 32 bits
-  Go high for more than 2T (Around 1500us) == 1
-  Go high for less than T (Around 400us) == 0
-  Go low for less than 2T (Around 750us)
-
-Rather than repeat a signal when the button is held down certain buttons
-generate the following code to indicate repetition.
-
-Go low for approx 16T
-Go high for approx 4T
-Go low for less than 2T
-
-(By removing the <2T from the start of the sequence and placing at the end
- it can be considered a stop bit but I found it easier to deal with it at
- the start).
-
-The 32 bits are encoded as XxYy where x and y are the actual data values
-while X and Y are the logical inverses of the associated data values. Using 
-LSB first yields sensible codes for the numbers.
-
-All codes are of the form b9xx
-
-The numeric keys generate the code 0x where x is the number pressed.
-
-Tuner		1c
-Tape		1d
-CD		1e
-CD-MD-CH	1f
-Track-		0a
-Track+		0b
-Rewind		0c
-FF		0d
-DNPP		5e
-Play/Pause	0e
-Vol+		14
-Vol-		15

Documentation/arm/empeg/mkdevs

@@ -1,11 +0,0 @@
-#!/bin/sh
-mknod /dev/display c 244 0
-mknod /dev/ir c 242 0
-mknod /dev/usb0 c 243 0
-mknod /dev/audio c 245 4
-mknod /dev/dsp c 245 3
-mknod /dev/mixer c 245 0
-mknod /dev/empeg_state c 246 0
-mknod /dev/radio0 c 81 64
-ln -sf radio0 radio
-ln -sf usb0 usb

Documentation/auxdisplay/.gitignore

@@ -0,0 +1 @@
+cfag12864b-example

Documentation/connector/.gitignore

@@ -0,0 +1 @@
+ucon

Documentation/filesystems/Locking

@@ -161,8 +161,12 @@ prototypes:
 	int (*set_page_dirty)(struct page *page);
 	int (*readpages)(struct file *filp, struct address_space *mapping,
 			struct list_head *pages, unsigned nr_pages);
-	int (*prepare_write)(struct file *, struct page *, unsigned, unsigned);
-	int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
+	int (*write_begin)(struct file *, struct address_space *mapping,
+				loff_t pos, unsigned len, unsigned flags,
+				struct page **pagep, void **fsdata);
+	int (*write_end)(struct file *, struct address_space *mapping,
+				loff_t pos, unsigned len, unsigned copied,
+				struct page *page, void *fsdata);
 	sector_t (*bmap)(struct address_space *, sector_t);
 	int (*invalidatepage) (struct page *, unsigned long);
 	int (*releasepage) (struct page *, int);
@@ -180,8 +184,6 @@ sync_page:		no	maybe
 writepages:		no
 set_page_dirty		no	no
 readpages:		no
-prepare_write:		no	yes			yes
-commit_write:		no	yes			yes
 write_begin:		no	locks the page		yes
 write_end:		no	yes, unlocks		yes
 perform_write:		no	n/a			yes
@@ -191,7 +193,7 @@ releasepage:		no	yes
 direct_IO:		no
 launder_page:		no	yes
 
-	->prepare_write(), ->commit_write(), ->sync_page() and ->readpage()
+	->write_begin(), ->write_end(), ->sync_page() and ->readpage()
 may be called from the request handler (/dev/loop).
 
 	->readpage() unlocks the page, either synchronously or via I/O

Documentation/filesystems/vfs.txt

@@ -492,7 +492,7 @@ written-back to storage typically in whole pages, however the
 address_space has finer control of write sizes.
 
 The read process essentially only requires 'readpage'.  The write
-process is more complicated and uses prepare_write/commit_write or
+process is more complicated and uses write_begin/write_end or
 set_page_dirty to write data into the address_space, and writepage,
 sync_page, and writepages to writeback data to storage.
 
@@ -521,8 +521,6 @@ struct address_space_operations {
 	int (*set_page_dirty)(struct page *page);
 	int (*readpages)(struct file *filp, struct address_space *mapping,
 			struct list_head *pages, unsigned nr_pages);
-	int (*prepare_write)(struct file *, struct page *, unsigned, unsigned);
-	int (*commit_write)(struct file *, struct page *, unsigned, unsigned);
 	int (*write_begin)(struct file *, struct address_space *mapping,
 				loff_t pos, unsigned len, unsigned flags,
 				struct page **pagep, void **fsdata);
@@ -598,37 +596,7 @@ struct address_space_operations {
 	readpages is only used for read-ahead, so read errors are
   	ignored.  If anything goes wrong, feel free to give up.
 
-  prepare_write: called by the generic write path in VM to set up a write
-  	request for a page.  This indicates to the address space that
-  	the given range of bytes is about to be written.  The
-  	address_space should check that the write will be able to
-  	complete, by allocating space if necessary and doing any other
-  	internal housekeeping.  If the write will update parts of
-  	any basic-blocks on storage, then those blocks should be
-  	pre-read (if they haven't been read already) so that the
-  	updated blocks can be written out properly.
-	The page will be locked.
-
-	Note: the page _must not_ be marked uptodate in this function
-	(or anywhere else) unless it actually is uptodate right now. As
-	soon as a page is marked uptodate, it is possible for a concurrent
-	read(2) to copy it to userspace.
-
-  commit_write: If prepare_write succeeds, new data will be copied
-        into the page and then commit_write will be called.  It will
-        typically update the size of the file (if appropriate) and
-        mark the inode as dirty, and do any other related housekeeping
-        operations.  It should avoid returning an error if possible -
-        errors should have been handled by prepare_write.
-
-  write_begin: This is intended as a replacement for prepare_write. The
-	key differences being that:
-		- it returns a locked page (in *pagep) rather than being
-		  given a pre locked page;
-		- it must be able to cope with short writes (where the
-		  length passed to write_begin is greater than the number
-		  of bytes copied into the page).
-
+  write_begin:
 	Called by the generic buffered write code to ask the filesystem to
 	prepare to write len bytes at the given offset in the file. The
 	address_space should check that the write will be able to complete,
@@ -640,6 +608,9 @@ struct address_space_operations {
         The filesystem must return the locked pagecache page for the specified
 	offset, in *pagep, for the caller to write into.
 
+	It must be able to cope with short writes (where the length passed to
+	write_begin is greater than the number of bytes copied into the page).
+
 	flags is a field for AOP_FLAG_xxx flags, described in
 	include/linux/fs.h.
 

Documentation/ftrace.txt

@@ -291,6 +291,9 @@ explains which is which.
   CPU#: The CPU which the process was running on.
 
   irqs-off: 'd' interrupts are disabled. '.' otherwise.
+	    Note: If the architecture does not support a way to
+		  read the irq flags variable, an 'X' will always
+		  be printed here.
 
   need-resched: 'N' task need_resched is set, '.' otherwise.
 

Documentation/i2c/busses/i2c-sis96x

@@ -42,7 +42,7 @@ I suspect that this driver could be made to work for the following SiS
 chipsets as well: 635, and 635T. If anyone owns a board with those chips
 AND is willing to risk crashing & burning an otherwise well-behaved kernel
 in the name of progress... please contact me at <mhoffman@lightlink.com> or
-via the project's mailing list: <i2c@lm-sensors.org>.  Please send bug
+via the linux-i2c mailing list: <linux-i2c@vger.kernel.org>.  Please send bug
 reports and/or success stories as well.
 
 

Documentation/ia64/.gitignore

@@ -0,0 +1 @@
+aliasing-test

Documentation/isdn/CREDITS

@@ -5,7 +5,7 @@ I want to thank all who contributed to this project and especially to:
 Thomas Bogendörfer (tsbogend@bigbug.franken.de)
   Tester, lots of bugfixes and hints.
 
-Alan Cox (alan@redhat.com)
+Alan Cox (alan@lxorguk.ukuu.org.uk)
   For help getting into standard-kernel.
 
 Henner Eisen (eis@baty.hanse.de)

Documentation/ja_JP/HOWTO

@@ -11,14 +11,14 @@ for non English (read: Japanese) speakers and is not intended as a
 fork. So if you have any comments or updates for this file, please try
 to update the original English file first.
 
-Last Updated: 2008/08/21
+Last Updated: 2008/10/24
 ==================================
 これは、
-linux-2.6.27/Documentation/HOWTO
+linux-2.6.28/Documentation/HOWTO
 の和訳です。
 
 翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ >
-翻訳日： 2008/8/5
+翻訳日： 2008/10/24
 翻訳者： Tsugikazu Shibata <tshibata at ab dot jp dot nec dot com>
 校正者： 松倉さん <nbh--mats at nifty dot com>
          小林 雅典さん (Masanori Kobayasi) <zap03216 at nifty dot ne dot jp>
@@ -110,8 +110,8 @@ Linux カーネルソースツリーは幅広い範囲のドキュメントを
 新しいドキュメントファイルも追加することを勧めます。
 カーネルの変更が、カーネルがユーザ空間に公開しているインターフェイスの
 変更を引き起こす場合、その変更を説明するマニュアルページのパッチや情報
-をマニュアルページのメンテナ mtk.manpages@gmail.com に送ることを勧めま
-す。
+をマニュアルページのメンテナ mtk.manpages@gmail.com に送り、CC を
+linux-api@ver.kernel.org に送ることを勧めます。
 
 以下はカーネルソースツリーに含まれている読んでおくべきファイルの一覧で
 す-
@@ -149,7 +149,7 @@ Linux カーネルソースツリーは幅広い範囲のドキュメントを
      この他にパッチを作る方法についてのよくできた記述は-
 
 	"The Perfect Patch"
-		http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt
+		http://userweb.kernel.org/~akpm/stuff/tpp.txt
 	"Linux kernel patch submission format"
 		http://linux.yyz.us/patch-format.html
 
@@ -664,7 +664,7 @@ Linux カーネルコミュニティは、一度に大量のコードの塊を
 これについて全てがどのようにあるべきかについての詳細は、以下のドキュメ
 ントの ChangeLog セクションを見てください-
   "The Perfect Patch"
-      http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt
+      http://userweb.kernel.org/~akpm/stuff/tpp.txt
 
 これらのどれもが、時にはとても困難です。これらの慣例を完璧に実施するに
 は数年かかるかもしれません。これは継続的な改善のプロセスであり、そのた

Documentation/kernel-parameters.txt

@@ -100,7 +100,7 @@ parameter is applicable:
 	X86-32	X86-32, aka i386 architecture is enabled.
 	X86-64	X86-64 architecture is enabled.
 			More X86-64 boot options can be found in
-			Documentation/x86_64/boot-options.txt .
+			Documentation/x86/x86_64/boot-options.txt .
 	X86	Either 32bit or 64bit x86 (same as X86-32+X86-64)
 
 In addition, the following text indicates that the option:
@@ -112,10 +112,10 @@ In addition, the following text indicates that the option:
 Parameters denoted with BOOT are actually interpreted by the boot
 loader, and have no meaning to the kernel directly.
 Do not modify the syntax of boot loader parameters without extreme
-need or coordination with <Documentation/i386/boot.txt>.
+need or coordination with <Documentation/x86/i386/boot.txt>.
 
 There are also arch-specific kernel-parameters not documented here.
-See for example <Documentation/x86_64/boot-options.txt>.
+See for example <Documentation/x86/x86_64/boot-options.txt>.
 
 Note that ALL kernel parameters listed below are CASE SENSITIVE, and that
 a trailing = on the name of any parameter states that that parameter will
@@ -1222,7 +1222,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	mce		[X86-32] Machine Check Exception
 
-	mce=option	[X86-64] See Documentation/x86_64/boot-options.txt
+	mce=option	[X86-64] See Documentation/x86/x86_64/boot-options.txt
 
 	md=		[HW] RAID subsystems devices and level
 			See Documentation/md.txt.
@@ -1728,7 +1728,7 @@ and is between 256 and 4096 characters. It is defined in the file
 			See Documentation/paride.txt.
 
 	pirq=		[SMP,APIC] Manual mp-table setup
-			See Documentation/i386/IO-APIC.txt.
+			See Documentation/x86/i386/IO-APIC.txt.
 
 	plip=		[PPT,NET] Parallel port network link
 			Format: { parport<nr> | timid | 0 }
@@ -2343,7 +2343,7 @@ and is between 256 and 4096 characters. It is defined in the file
 			See Documentation/fb/modedb.txt.
 
 	vga=		[BOOT,X86-32] Select a particular video mode
-			See Documentation/i386/boot.txt and
+			See Documentation/x86/i386/boot.txt and
 			Documentation/svga.txt.
 			Use vga=ask for menu.
 			This is actually a boot loader parameter; the value is

Documentation/lguest/Makefile

@@ -1,5 +1,5 @@
 # This creates the demonstration utility "lguest" which runs a Linux guest.
-CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include
+CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -I../../include -I../../arch/x86/include
 LDLIBS:=-lz
 
 all: lguest

Documentation/lguest/lguest.c

@@ -44,7 +44,7 @@
 #include "linux/virtio_console.h"
 #include "linux/virtio_rng.h"
 #include "linux/virtio_ring.h"
-#include "asm-x86/bootparam.h"
+#include "asm/bootparam.h"
 /*L:110 We can ignore the 39 include files we need for this program, but I do
  * want to draw attention to the use of kernel-style types.
  *
@@ -402,7 +402,7 @@ static unsigned long load_bzimage(int fd)
 	void *p = from_guest_phys(0x100000);
 
 	/* Go back to the start of the file and read the header.  It should be
-	 * a Linux boot header (see Documentation/i386/boot.txt) */
+	 * a Linux boot header (see Documentation/x86/i386/boot.txt) */
 	lseek(fd, 0, SEEK_SET);
 	read(fd, &boot, sizeof(boot));
 

Documentation/networking/.gitignore

@@ -0,0 +1 @@
+ifenslave

Documentation/networking/dmfe.txt

@@ -60,6 +60,6 @@ Tobias Ringstrom <tori@unhappy.mine.nu> : Current Maintainer
 Contributors:
 
 Marcelo Tosatti <marcelo@conectiva.com.br>
-Alan Cox <alan@redhat.com>
+Alan Cox <alan@lxorguk.ukuu.org.uk>
 Jeff Garzik <jgarzik@pobox.com>
 Vojtech Pavlik <vojtech@suse.cz>

Documentation/pcmcia/.gitignore

@@ -0,0 +1 @@
+crc32hash

Documentation/scheduler/00-INDEX

@@ -4,8 +4,6 @@ sched-arch.txt
 	- CPU Scheduler implementation hints for architecture specific code.
 sched-coding.txt
 	- reference for various scheduler-related methods in the O(1) scheduler.
-sched-design.txt
-	- goals, design and implementation of the Linux O(1) scheduler.
 sched-design-CFS.txt
 	- goals, design and implementation of the Complete Fair Scheduler.
 sched-domains.txt

Documentation/scheduler/sched-design-CFS.txt

@@ -92,7 +92,7 @@ other HZ detail.  Thus the CFS scheduler has no notion of "timeslices" in the
 way the previous scheduler had, and has no heuristics whatsoever.  There is
 only one central tunable (you have to switch on CONFIG_SCHED_DEBUG):
 
-   /proc/sys/kernel/sched_granularity_ns
+   /proc/sys/kernel/sched_min_granularity_ns
 
 which can be used to tune the scheduler from "desktop" (i.e., low latencies) to
 "server" (i.e., good batching) workloads.  It defaults to a setting suitable

Documentation/scsi/aacraid.txt

@@ -128,7 +128,7 @@ Supported Cards/Chipsets
 
 People
 -------------------------
-Alan Cox <alan@redhat.com>
+Alan Cox <alan@lxorguk.ukuu.org.uk>
 Christoph Hellwig <hch@infradead.org>	(updates for new-style PCI probing and SCSI host registration,
 					 small cleanups/fixes)
 Matt Domsch <matt_domsch@dell.com>	(revision ioctl, adapter messages)

Documentation/spi/.gitignore

@@ -0,0 +1,2 @@
+spidev_fdx
+spidev_test

Documentation/stable_kernel_rules.txt

@@ -12,6 +12,7 @@ Rules on what kind of patches are accepted, and which ones are not, into the
    marked CONFIG_BROKEN), an oops, a hang, data corruption, a real
    security issue, or some "oh, that's not good" issue.  In short, something
    critical.
+ - New device IDs and quirks are also accepted.
  - No "theoretical race condition" issues, unless an explanation of how the
    race can be exploited is also provided.
  - It cannot contain any "trivial" fixes in it (spelling changes,

Documentation/sysctl/kernel.txt

@@ -363,11 +363,21 @@ tainted:
 Non-zero if the kernel has been tainted.  Numeric values, which
 can be ORed together:
 
-  1 - A module with a non-GPL license has been loaded, this
-      includes modules with no license.
-      Set by modutils >= 2.4.9 and module-init-tools.
-  2 - A module was force loaded by insmod -f.
-      Set by modutils >= 2.4.9 and module-init-tools.
-  4 - Unsafe SMP processors: SMP with CPUs not designed for SMP.
- 64 - A module from drivers/staging was loaded.
+   1 - A module with a non-GPL license has been loaded, this
+       includes modules with no license.
+       Set by modutils >= 2.4.9 and module-init-tools.
+   2 - A module was force loaded by insmod -f.
+       Set by modutils >= 2.4.9 and module-init-tools.
+   4 - Unsafe SMP processors: SMP with CPUs not designed for SMP.
+   8 - A module was forcibly unloaded from the system by rmmod -f.
+  16 - A hardware machine check error occurred on the system.
+  32 - A bad page was discovered on the system.
+  64 - The user has asked that the system be marked "tainted".  This
+       could be because they are running software that directly modifies
+       the hardware, or for other reasons.
+ 128 - The system has died.
+ 256 - The ACPI DSDT has been overridden with one supplied by the user
+        instead of using the one provided by the hardware.
+ 512 - A kernel warning has occurred.
+1024 - A module from drivers/staging was loaded.
 

Documentation/video4linux/.gitignore

@@ -0,0 +1 @@
+v4lgrab

Documentation/video4linux/bttv/CONTRIBUTORS

@@ -3,7 +3,7 @@ Contributors to bttv:
 Michael Chu <mmchu@pobox.com>
   AverMedia fix and more flexible card recognition
 
-Alan Cox <alan@redhat.com>
+Alan Cox <alan@lxorguk.ukuu.org.uk>
   Video4Linux interface and 2.1.x kernel adaptation
 
 Chris Kleitsch

Documentation/vm/.gitignore

@@ -0,0 +1 @@
+slabinfo

Documentation/watchdog/src/.gitignore

@@ -0,0 +1,2 @@
+watchdog-simple
+watchdog-test

Documentation/x86/x86_64/boot-options.txt

@@ -35,7 +35,7 @@ APICs
 
    nolapic	 Don't use the local APIC (alias for i386 compatibility)
 
-   pirq=...	 See Documentation/i386/IO-APIC.txt
+   pirq=...	 See Documentation/x86/i386/IO-APIC.txt
 
    noapictimer	 Don't set up the APIC timer
 
@@ -139,7 +139,7 @@ Non Executable Mappings
 SMP
 
   additional_cpus=NUM Allow NUM more CPUs for hotplug
-		 (defaults are specified by the BIOS, see Documentation/x86_64/cpu-hotplug-spec)
+		 (defaults are specified by the BIOS, see Documentation/x86/x86_64/cpu-hotplug-spec)
 
 NUMA
 

Documentation/x86/x86_64/fake-numa-for-cpusets

@@ -10,7 +10,7 @@ amount of system memory that are available to a certain class of tasks.
 For more information on the features of cpusets, see Documentation/cpusets.txt.
 There are a number of different configurations you can use for your needs.  For
 more information on the numa=fake command line option and its various ways of
-configuring fake nodes, see Documentation/x86_64/boot-options.txt.
+configuring fake nodes, see Documentation/x86/x86_64/boot-options.txt.
 
 For the purposes of this introduction, we'll assume a very primitive NUMA
 emulation setup of "numa=fake=4*512,".  This will split our system memory into

MAINTAINERS

@@ -347,7 +347,7 @@ S:	Maintained
 ALI1563 I2C DRIVER
 P:	Rudolf Marek
 M:	r.marek@assembler.cz
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
 
 ALPHA PORT
@@ -610,6 +610,11 @@ P:	Philipp Zabel
 M:	philipp.zabel@gmail.com
 S:	Maintained
 
+ARM/NEC MOBILEPRO 900/c MACHINE SUPPORT
+P:	Michael Petchkovsky
+M:	mkpetch@internode.on.net
+S:	Maintained
+
 ARM/TOSA MACHINE SUPPORT
 P:	Dmitry Baryshkov
 M:	dbaryshkov@gmail.com
@@ -1749,7 +1754,7 @@ FREESCALE I2C CPM DRIVER
 P:	Jochen Friedrich
 M:	jochen@scram.de
 L:	linuxppc-dev@ozlabs.org
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
 
 FREESCALE SOC FS_ENET DRIVER
@@ -2022,7 +2027,7 @@ S:	Maintained
 I2C/SMBUS STUB DRIVER
 P:	Mark M. Hoffman
 M:	mhoffman@lightlink.com
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
 
 I2C SUBSYSTEM
@@ -2030,14 +2035,14 @@ P:	Jean Delvare (PC drivers, core)
 M:	khali@linux-fr.org
 P:	Ben Dooks (embedded platforms)
 M:	ben-linux@fluff.org
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 T:	quilt http://khali.linux-fr.org/devel/linux-2.6/jdelvare-i2c/
 S:	Maintained
 
 I2C-TINY-USB DRIVER
 P:	Till Harbaum
 M:	till@harbaum.org
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 T:	http://www.harbaum.org/till/i2c_tiny_usb
 S:	Maintained
 
@@ -2701,6 +2706,16 @@ M:	matthew@wil.cx
 L:	linux-scsi@vger.kernel.org
 S:	Maintained
 
+LTP (Linux Test Project)
+P:	Subrata Modak
+M:	subrata@linux.vnet.ibm.com
+P:	Mike Frysinger
+M:	vapier@gentoo.org
+L:	ltp-list@lists.sourceforge.net (subscribers-only)
+W:	http://ltp.sourceforge.net/
+T:	git kernel.org/pub/scm/linux/kernel/git/galak/ltp.git
+S:	Maintained
+
 M32R ARCHITECTURE
 P:	Hirokazu Takata
 M:	takata@linux-m32r.org
@@ -3143,7 +3158,7 @@ S:	Maintained
 OPENCORES I2C BUS DRIVER
 P:	Peter Korsgaard
 M:	jacmet@sunsite.dk
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
 
 OPROFILE
@@ -3190,7 +3205,7 @@ S:	Maintained
 PA SEMI SMBUS DRIVER
 P:	Olof Johansson
 M:	olof@lixom.net
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
 
 PANASONIC LAPTOP ACPI EXTRAS DRIVER
@@ -3335,7 +3350,7 @@ S:	Maintained
 PNXxxxx I2C DRIVER
 P:	Vitaly Wool
 M:	vitalywool@gmail.com
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
 
 PPP PROTOCOL DRIVERS AND COMPRESSORS
@@ -3799,7 +3814,7 @@ S:	Maintained
 SIS 96X I2C/SMBUS DRIVER
 P:	Mark M. Hoffman
 M:	mhoffman@lightlink.com
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
 
 SIS FRAMEBUFFER DRIVER
@@ -4546,7 +4561,7 @@ S:	Maintained
 VIAPRO SMBUS DRIVER
 P:	Jean Delvare
 M:	khali@linux-fr.org
-L:	i2c@lm-sensors.org
+L:	linux-i2c@vger.kernel.org
 S:	Maintained
 
 VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER

Makefile

@@ -536,7 +536,7 @@ KBUILD_CFLAGS	+= -g
 KBUILD_AFLAGS	+= -gdwarf-2
 endif
 
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
 KBUILD_CFLAGS	+= -pg
 endif
 
@@ -961,6 +961,7 @@ export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
 
 # The asm symlink changes when $(ARCH) changes.
 # Detect this and ask user to run make mrproper
+# If asm is a stale symlink (point to dir that does not exist) remove it
 define check-symlink
 	set -e;                                                            \
 	if [ -L include/asm ]; then                                        \
@@ -970,6 +971,10 @@ define check-symlink
 			echo "       set ARCH or save .config and run 'make mrproper' to fix it";             \
 			exit 1;                                            \
 		fi;                                                        \
+		test -e $$asmlink || rm include/asm;                       \
+	elif [ -d include/asm ]; then                                      \
+		echo "ERROR: $@ is a directory but a symlink was expected";\
+		exit 1;                                                    \
 	fi
 endef
 
@@ -1431,7 +1436,8 @@ ALLSOURCE_ARCHS := $(SRCARCH)
 define find-sources
         ( for arch in $(ALLSOURCE_ARCHS) ; do \
 	       find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \
-	            -name $1 -print; \
+		    -wholename $(__srctree)arch/$${arch}/include/asm -type d -prune \
+	            -o -name $1 -print; \
 	  done ; \
 	  find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
 	       -name $1 -print; \

arch/arm/Kconfig

@@ -16,8 +16,7 @@ config ARM
 	select HAVE_ARCH_KGDB
 	select HAVE_KPROBES if (!XIP_KERNEL)
 	select HAVE_KRETPROBES if (HAVE_KPROBES)
-	select HAVE_FTRACE if (!XIP_KERNEL)
-	select HAVE_DYNAMIC_FTRACE if (HAVE_FTRACE)
+	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
 	select HAVE_GENERIC_DMA_COHERENT
 	help
 	  The ARM series is a line of low-power-consumption RISC chip designs

arch/arm/boot/compressed/Makefile

@@ -70,7 +70,7 @@ SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
 targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
 		 head.o misc.o $(OBJS)
 
-ifeq ($(CONFIG_FTRACE),y)
+ifeq ($(CONFIG_FUNCTION_TRACER),y)
 ORIG_CFLAGS := $(KBUILD_CFLAGS)
 KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
 endif

arch/arm/common/sharpsl_pm.c

@@ -54,11 +54,13 @@
 /*
  * Prototypes
  */
+#ifdef CONFIG_PM
 static int sharpsl_off_charge_battery(void);
-static int sharpsl_check_battery_temp(void);
 static int sharpsl_check_battery_voltage(void);
-static int sharpsl_ac_check(void);
 static int sharpsl_fatal_check(void);
+#endif
+static int sharpsl_check_battery_temp(void);
+static int sharpsl_ac_check(void);
 static int sharpsl_average_value(int ad);
 static void sharpsl_average_clear(void);
 static void sharpsl_charge_toggle(struct work_struct *private_);
@@ -424,6 +426,7 @@ static int sharpsl_check_battery_temp(void)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 static int sharpsl_check_battery_voltage(void)
 {
 	int val, i, buff[5];
@@ -455,6 +458,7 @@ static int sharpsl_check_battery_voltage(void)
 
 	return 0;
 }
+#endif
 
 static int sharpsl_ac_check(void)
 {
@@ -586,8 +590,6 @@ static int corgi_pxa_pm_enter(suspend_state_t state)
 
 	return 0;
 }
-#endif
-
 
 /*
  * Check for fatal battery errors
@@ -738,7 +740,10 @@ static int sharpsl_off_charge_battery(void)
 		}
 	}
 }
-
+#else
+#define sharpsl_pm_suspend	NULL
+#define sharpsl_pm_resume	NULL
+#endif
 
 static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -768,10 +773,12 @@ static void sharpsl_apm_get_power_status(struct apm_power_info *info)
 	info->battery_life = sharpsl_pm.battstat.mainbat_percent;
 }
 
+#ifdef CONFIG_PM
 static struct platform_suspend_ops sharpsl_pm_ops = {
 	.enter		= corgi_pxa_pm_enter,
 	.valid		= suspend_valid_only_mem,
 };
+#endif
 
 static int __init sharpsl_pm_probe(struct platform_device *pdev)
 {
@@ -802,7 +809,9 @@ static int __init sharpsl_pm_probe(struct platform_device *pdev)
 
 	apm_get_power_status = sharpsl_apm_get_power_status;
 
+#ifdef CONFIG_PM
 	suspend_set_ops(&sharpsl_pm_ops);
+#endif
 
 	mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250));
 

arch/arm/include/asm/ftrace.h

@@ -1,7 +1,7 @@
 #ifndef _ASM_ARM_FTRACE
 #define _ASM_ARM_FTRACE
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 #define MCOUNT_ADDR		((long)(mcount))
 #define MCOUNT_INSN_SIZE	4 /* sizeof mcount call */
 

arch/arm/kernel/armksyms.c

@@ -183,6 +183,6 @@ EXPORT_SYMBOL(_find_next_bit_be);
 
 EXPORT_SYMBOL(copy_page);
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 EXPORT_SYMBOL(mcount);
 #endif

arch/arm/kernel/entry-common.S

@@ -101,7 +101,7 @@ ENDPROC(ret_from_fork)
 #undef CALL
 #define CALL(x) .long x
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 #ifdef CONFIG_DYNAMIC_FTRACE
 ENTRY(mcount)
 	stmdb sp!, {r0-r3, lr}
@@ -149,7 +149,7 @@ trace:
 ftrace_stub:
 	mov pc, lr
 
-#endif /* CONFIG_FTRACE */
+#endif /* CONFIG_FUNCTION_TRACER */
 
 /*=============================================================================
  * SWI handler

arch/arm/kernel/ftrace.c

@@ -95,19 +95,6 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 	return ret;
 }
 
-int ftrace_mcount_set(unsigned long *data)
-{
-	unsigned long pc, old;
-	unsigned long *addr = data;
-	unsigned char *new;
-
-	pc = (unsigned long)&mcount_call;
-	memcpy(&old, &mcount_call, MCOUNT_INSN_SIZE);
-	new = ftrace_call_replace(pc, *addr);
-	*addr = ftrace_modify_code(pc, (unsigned char *)&old, new);
-	return 0;
-}
-
 /* run from kstop_machine */
 int __init ftrace_dyn_arch_init(void *data)
 {

arch/arm/mach-at91/board-afeb-9260v1.c

@@ -165,6 +165,7 @@ static struct at91_mmc_data __initdata afeb9260_mmc_data = {
 static struct i2c_board_info __initdata afeb9260_i2c_devices[] = {
 	{
 		I2C_BOARD_INFO("fm3130", 0x68),
+	}, {
 		I2C_BOARD_INFO("24c64", 0x50),
 	},
 };

arch/arm/mach-at91/include/mach/gpio.h

@@ -13,6 +13,7 @@
 #ifndef __ASM_ARCH_AT91RM9200_GPIO_H
 #define __ASM_ARCH_AT91RM9200_GPIO_H
 
+#include <linux/kernel.h>
 #include <asm/irq.h>
 
 #define PIN_BASE		NR_AIC_IRQS
@@ -220,6 +221,7 @@ static inline int gpio_request(unsigned gpio, const char *label)
 
 static inline void gpio_free(unsigned gpio)
 {
+	might_sleep();
 }
 
 extern int gpio_direction_input(unsigned gpio);

arch/arm/mach-ep93xx/core.c

@@ -26,6 +26,7 @@
 #include <linux/serial_core.h>
 #include <linux/device.h>
 #include <linux/mm.h>
+#include <linux/dma-mapping.h>
 #include <linux/time.h>
 #include <linux/timex.h>
 #include <linux/delay.h>
@@ -449,12 +450,13 @@ static struct resource ep93xx_ohci_resources[] = {
 	},
 };
 
+
 static struct platform_device ep93xx_ohci_device = {
 	.name		= "ep93xx-ohci",
 	.id		= -1,
 	.dev		= {
-		.dma_mask		= (void *)0xffffffff,
-		.coherent_dma_mask	= 0xffffffff,
+		.dma_mask		= &ep93xx_ohci_device.dev.coherent_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.num_resources	= ARRAY_SIZE(ep93xx_ohci_resources),
 	.resource	= ep93xx_ohci_resources,

arch/arm/mach-imx/include/mach/gpio.h

@@ -1,5 +1,6 @@
 #ifndef _IMX_GPIO_H
 
+#include <linux/kernel.h>
 #include <mach/imx-regs.h>
 
 #define IMX_GPIO_ALLOC_MODE_NORMAL	0
@@ -63,6 +64,8 @@ static inline int gpio_request(unsigned gpio, const char *label)
 
 static inline void gpio_free(unsigned gpio)
 {
+	might_sleep();
+
 	imx_gpio_free(gpio);
 }
 

arch/arm/mach-ixp4xx/include/mach/gpio.h

@@ -25,6 +25,7 @@
 #ifndef __ASM_ARCH_IXP4XX_GPIO_H
 #define __ASM_ARCH_IXP4XX_GPIO_H
 
+#include <linux/kernel.h>
 #include <mach/hardware.h>
 
 static inline int gpio_request(unsigned gpio, const char *label)
@@ -34,6 +35,8 @@ static inline int gpio_request(unsigned gpio, const char *label)
 
 static inline void gpio_free(unsigned gpio)
 {
+	might_sleep();
+
 	return;
 }
 

arch/arm/mach-ks8695/include/mach/gpio.h

@@ -11,6 +11,8 @@
 #ifndef __ASM_ARCH_GPIO_H_
 #define __ASM_ARCH_GPIO_H_
 
+#include <linux/kernel.h>
+
 #define KS8695_GPIO_0		0
 #define KS8695_GPIO_1		1
 #define KS8695_GPIO_2		2
@@ -74,6 +76,7 @@ static inline int gpio_request(unsigned int pin, const char *label)
 
 static inline void gpio_free(unsigned int pin)
 {
+	might_sleep();
 }
 
 #endif

arch/arm/mach-mx3/mx31ads.c

@@ -35,6 +35,8 @@
 #include <mach/imx-uart.h>
 #include <mach/iomux-mx3.h>
 
+#include "devices.h"
+
 /*!
  * @file mx31ads.c
  *

arch/arm/mach-mx3/pcm037.c

@@ -91,12 +91,12 @@ static struct map_desc pcm037_io_desc[] __initdata = {
 		.virtual	= AIPS1_BASE_ADDR_VIRT,
 		.pfn		= __phys_to_pfn(AIPS1_BASE_ADDR),
 		.length		= AIPS1_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_DEVICE_NONSHARED
 	}, {
 		.virtual	= AIPS2_BASE_ADDR_VIRT,
 		.pfn		= __phys_to_pfn(AIPS2_BASE_ADDR),
 		.length		= AIPS2_SIZE,
-		.type		= MT_DEVICE
+		.type		= MT_DEVICE_NONSHARED
 	},
 };
 

arch/arm/mach-ns9xxx/gpio.c

@@ -8,6 +8,7 @@
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  */
+#include <linux/kernel.h>
 #include <linux/compiler.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
@@ -63,6 +64,7 @@ EXPORT_SYMBOL(gpio_request);
 
 void gpio_free(unsigned gpio)
 {
+	might_sleep();
 	clear_bit(gpio, gpiores);
 	return;
 }

arch/arm/mach-orion5x/gpio.c

@@ -165,6 +165,8 @@ EXPORT_SYMBOL(gpio_request);
 
 void gpio_free(unsigned pin)
 {
+	might_sleep();
+
 	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
 		pr_debug("%s: invalid GPIO %d\n", __func__, pin);
 		return;

arch/arm/mach-pxa/corgi_pm.c

@@ -204,7 +204,9 @@ static struct sharpsl_charger_machinfo corgi_pm_machinfo = {
 	.read_devdata    = corgipm_read_devdata,
 	.charger_wakeup  = corgi_charger_wakeup,
 	.should_wakeup   = corgi_should_wakeup,
-#ifdef CONFIG_BACKLIGHT_CORGI
+#if defined(CONFIG_LCD_CORGI)
+	.backlight_limit = corgi_lcd_limit_intensity,
+#elif defined(CONFIG_BACKLIGHT_CORGI)
 	.backlight_limit = corgibl_limit_intensity,
 #endif
 	.charge_on_volt	  = SHARPSL_CHARGE_ON_VOLT,

arch/arm/mach-pxa/include/mach/sharpsl.h

@@ -26,6 +26,7 @@ struct corgits_machinfo {
  * SharpSL Backlight
  */
 extern void corgibl_limit_intensity(int limit);
+extern void corgi_lcd_limit_intensity(int limit);
 
 
 /*

arch/arm/mach-pxa/spitz.c

@@ -385,6 +385,16 @@ static void __init spitz_init_spi(void)
 	if (err)
 		goto err_free_2;
 
+	err = gpio_direction_output(SPITZ_GPIO_ADS7846_CS, 1);
+	if (err)
+		goto err_free_3;
+	err = gpio_direction_output(SPITZ_GPIO_LCDCON_CS, 1);
+	if (err)
+		goto err_free_3;
+	err = gpio_direction_output(SPITZ_GPIO_MAX1111_CS, 1);
+	if (err)
+		goto err_free_3;
+
 	if (machine_is_akita()) {
 		spitz_lcdcon_info.gpio_backlight_cont = AKITA_GPIO_BACKLIGHT_CONT;
 		spitz_lcdcon_info.gpio_backlight_on = AKITA_GPIO_BACKLIGHT_ON;
@@ -394,6 +404,8 @@ static void __init spitz_init_spi(void)
 	spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices));
 	return;
 
+err_free_3:
+	gpio_free(SPITZ_GPIO_MAX1111_CS);
 err_free_2:
 	gpio_free(SPITZ_GPIO_LCDCON_CS);
 err_free_1:

arch/arm/mach-pxa/spitz_pm.c

@@ -198,7 +198,9 @@ struct sharpsl_charger_machinfo spitz_pm_machinfo = {
 	.read_devdata     = spitzpm_read_devdata,
 	.charger_wakeup   = spitz_charger_wakeup,
 	.should_wakeup    = spitz_should_wakeup,
-#ifdef CONFIG_BACKLIGHT_CORGI
+#if defined(CONFIG_LCD_CORGI)
+	.backlight_limit = corgi_lcd_limit_intensity,
+#elif defined(CONFIG_BACKLIGHT_CORGI)
         .backlight_limit  = corgibl_limit_intensity,
 #endif
 	.charge_on_volt	  = SHARPSL_CHARGE_ON_VOLT,

arch/arm/mm/proc-xsc3.S

@@ -349,7 +349,7 @@ ENTRY(cpu_xsc3_switch_mm)
 cpu_xsc3_mt_table:
 	.long	0x00						@ L_PTE_MT_UNCACHED
 	.long	PTE_EXT_TEX(1)					@ L_PTE_MT_BUFFERABLE
-	.long	PTE_CACHEABLE					@ L_PTE_MT_WRITETHROUGH
+	.long	PTE_EXT_TEX(5) | PTE_CACHEABLE			@ L_PTE_MT_WRITETHROUGH
 	.long	PTE_CACHEABLE | PTE_BUFFERABLE			@ L_PTE_MT_WRITEBACK
 	.long	PTE_EXT_TEX(1) | PTE_BUFFERABLE			@ L_PTE_MT_DEV_SHARED
 	.long	0x00						@ unused

arch/arm/plat-mxc/gpio.c

@@ -188,7 +188,7 @@ static int mxc_gpio_get(struct gpio_chip *chip, unsigned offset)
 	struct mxc_gpio_port *port =
 		container_of(chip, struct mxc_gpio_port, chip);
 
-	return (__raw_readl(port->base + GPIO_DR) >> offset) & 1;
+	return (__raw_readl(port->base + GPIO_PSR) >> offset) & 1;
 }
 
 static int mxc_gpio_direction_input(struct gpio_chip *chip, unsigned offset)

arch/arm/plat-mxc/include/mach/io.h

@@ -14,6 +14,26 @@
 /* Allow IO space to be anywhere in the memory */
 #define IO_SPACE_LIMIT 0xffffffff
 
+#ifdef CONFIG_ARCH_MX3
+#define __arch_ioremap __mx3_ioremap
+#define __arch_iounmap __iounmap
+
+static inline void __iomem *
+__mx3_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
+{
+	if (mtype == MT_DEVICE) {
+		/* Access all peripherals below 0x80000000 as nonshared device
+		 * but leave l2cc alone.
+		 */
+		if ((phys_addr < 0x80000000) && ((phys_addr < L2CC_BASE_ADDR) ||
+			(phys_addr >= L2CC_BASE_ADDR + L2CC_SIZE)))
+			mtype = MT_DEVICE_NONSHARED;
+	}
+
+	return __arm_ioremap(phys_addr, size, mtype);
+}
+#endif
+
 /* io address mapping macro */
 #define __io(a)			((void __iomem *)(a))
 

arch/ia64/include/asm/iommu.h

@@ -11,6 +11,5 @@ extern int force_iommu, no_iommu;
 extern int iommu_detected;
 extern void iommu_dma_init(void);
 extern void machvec_init(const char *name);
-extern int forbid_dac;
 
 #endif

arch/ia64/include/asm/kvm_host.h

@@ -365,7 +365,8 @@ struct kvm_vcpu_arch {
 	long itc_offset;
 	unsigned long itc_check;
 	unsigned long timer_check;
-	unsigned long timer_pending;
+	unsigned int timer_pending;
+	unsigned int timer_fired;
 
 	unsigned long vrr[8];
 	unsigned long ibr[8];
@@ -417,6 +418,9 @@ struct kvm_arch {
 	struct list_head assigned_dev_head;
 	struct dmar_domain *intel_iommu_domain;
 	struct hlist_head irq_ack_notifier_list;
+
+	unsigned long irq_sources_bitmap;
+	unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
 };
 
 union cpuid3_t {

arch/ia64/kernel/pci-dma.c

@@ -89,13 +89,6 @@ int iommu_dma_supported(struct device *dev, u64 mask)
 {
 	struct dma_mapping_ops *ops = get_dma_ops(dev);
 
-#ifdef CONFIG_PCI
-	if (mask > 0xffffffff && forbid_dac > 0) {
-		dev_info(dev, "Disallowing DAC for device\n");
-		return 0;
-	}
-#endif
-
 	if (ops->dma_supported_op)
 		return ops->dma_supported_op(dev, mask);
 

arch/ia64/kvm/Makefile

@@ -29,13 +29,18 @@ define cmd_offsets
 	 echo ""; \
 	 echo "#endif" ) > $@
 endef
+
 # We use internal rules to avoid the "is up to date" message from make
-arch/ia64/kvm/asm-offsets.s: arch/ia64/kvm/asm-offsets.c
+arch/ia64/kvm/asm-offsets.s: arch/ia64/kvm/asm-offsets.c \
+			$(wildcard $(srctree)/arch/ia64/include/asm/*.h)\
+			$(wildcard $(srctree)/include/linux/*.h)
 	$(call if_changed_dep,cc_s_c)
 
 $(obj)/$(offsets-file): arch/ia64/kvm/asm-offsets.s
 	$(call cmd,offsets)
 
+FORCE : $(obj)/$(offsets-file)
+
 #
 # Makefile for Kernel-based Virtual Machine module
 #
@@ -53,7 +58,6 @@ endif
 kvm-objs := $(common-objs) kvm-ia64.o kvm_fw.o
 obj-$(CONFIG_KVM) += kvm.o
 
-FORCE : $(obj)/$(offsets-file)
 EXTRA_CFLAGS_vcpu.o += -mfixed-range=f2-f5,f12-f127
 kvm-intel-objs = vmm.o vmm_ivt.o trampoline.o vcpu.o optvfault.o mmio.o \
 	vtlb.o process.o

arch/ia64/kvm/kvm-ia64.c

@@ -385,6 +385,7 @@ static int handle_global_purge(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	struct kvm *kvm = vcpu->kvm;
 	struct call_data call_data;
 	int i;
+
 	call_data.ptc_g_data = p->u.ptc_g_data;
 
 	for (i = 0; i < KVM_MAX_VCPUS; i++) {
@@ -418,33 +419,41 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu)
 	ktime_t kt;
 	long itc_diff;
 	unsigned long vcpu_now_itc;
-
 	unsigned long expires;
 	struct hrtimer *p_ht = &vcpu->arch.hlt_timer;
 	unsigned long cyc_per_usec = local_cpu_data->cyc_per_usec;
 	struct vpd *vpd = to_host(vcpu->kvm, vcpu->arch.vpd);
 
-	vcpu_now_itc = ia64_getreg(_IA64_REG_AR_ITC) + vcpu->arch.itc_offset;
+	if (irqchip_in_kernel(vcpu->kvm)) {
 
-	if (time_after(vcpu_now_itc, vpd->itm)) {
-		vcpu->arch.timer_check = 1;
-		return 1;
-	}
-	itc_diff = vpd->itm - vcpu_now_itc;
-	if (itc_diff < 0)
-		itc_diff = -itc_diff;
+		vcpu_now_itc = ia64_getreg(_IA64_REG_AR_ITC) + vcpu->arch.itc_offset;
 
-	expires = div64_u64(itc_diff, cyc_per_usec);
-	kt = ktime_set(0, 1000 * expires);
-	vcpu->arch.ht_active = 1;
-	hrtimer_start(p_ht, kt, HRTIMER_MODE_ABS);
+		if (time_after(vcpu_now_itc, vpd->itm)) {
+			vcpu->arch.timer_check = 1;
+			return 1;
+		}
+		itc_diff = vpd->itm - vcpu_now_itc;
+		if (itc_diff < 0)
+			itc_diff = -itc_diff;
+
+		expires = div64_u64(itc_diff, cyc_per_usec);
+		kt = ktime_set(0, 1000 * expires);
+
+		down_read(&vcpu->kvm->slots_lock);
+		vcpu->arch.ht_active = 1;
+		hrtimer_start(p_ht, kt, HRTIMER_MODE_ABS);
 
-	if (irqchip_in_kernel(vcpu->kvm)) {
 		vcpu->arch.mp_state = KVM_MP_STATE_HALTED;
 		kvm_vcpu_block(vcpu);
 		hrtimer_cancel(p_ht);
 		vcpu->arch.ht_active = 0;
 
+		if (test_and_clear_bit(KVM_REQ_UNHALT, &vcpu->requests))
+			if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED)
+				vcpu->arch.mp_state =
+					KVM_MP_STATE_RUNNABLE;
+		up_read(&vcpu->kvm->slots_lock);
+
 		if (vcpu->arch.mp_state != KVM_MP_STATE_RUNNABLE)
 			return -EINTR;
 		return 1;
@@ -484,10 +493,6 @@ static int (*kvm_vti_exit_handlers[])(struct kvm_vcpu *vcpu,
 static const int kvm_vti_max_exit_handlers =
 		sizeof(kvm_vti_exit_handlers)/sizeof(*kvm_vti_exit_handlers);
 
-static void kvm_prepare_guest_switch(struct kvm_vcpu *vcpu)
-{
-}
-
 static uint32_t kvm_get_exit_reason(struct kvm_vcpu *vcpu)
 {
 	struct exit_ctl_data *p_exit_data;
@@ -600,8 +605,6 @@ static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 
 again:
 	preempt_disable();
-
-	kvm_prepare_guest_switch(vcpu);
 	local_irq_disable();
 
 	if (signal_pending(current)) {
@@ -614,7 +617,7 @@ again:
 
 	vcpu->guest_mode = 1;
 	kvm_guest_enter();
-
+	down_read(&vcpu->kvm->slots_lock);
 	r = vti_vcpu_run(vcpu, kvm_run);
 	if (r < 0) {
 		local_irq_enable();
@@ -634,9 +637,8 @@ again:
 	 * But we need to prevent reordering, hence this barrier():
 	 */
 	barrier();
-
 	kvm_guest_exit();
-
+	up_read(&vcpu->kvm->slots_lock);
 	preempt_enable();
 
 	r = kvm_handle_exit(kvm_run, vcpu);
@@ -673,6 +675,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 
 	if (unlikely(vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)) {
 		kvm_vcpu_block(vcpu);
+		clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
 		vcpu_put(vcpu);
 		return -EAGAIN;
 	}
@@ -778,6 +781,9 @@ static void kvm_init_vm(struct kvm *kvm)
 	kvm_build_io_pmt(kvm);
 
 	INIT_LIST_HEAD(&kvm->arch.assigned_dev_head);
+
+	/* Reserve bit 0 of irq_sources_bitmap for userspace irq source */
+	set_bit(KVM_USERSPACE_IRQ_SOURCE_ID, &kvm->arch.irq_sources_bitmap);
 }
 
 struct  kvm *kvm_arch_create_vm(void)
@@ -941,9 +947,8 @@ long kvm_arch_vm_ioctl(struct file *filp,
 			goto out;
 		if (irqchip_in_kernel(kvm)) {
 			mutex_lock(&kvm->lock);
-			kvm_ioapic_set_irq(kvm->arch.vioapic,
-						irq_event.irq,
-						irq_event.level);
+			kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
+				    irq_event.irq, irq_event.level);
 			mutex_unlock(&kvm->lock);
 			r = 0;
 		}
@@ -1123,15 +1128,16 @@ static enum hrtimer_restart hlt_timer_fn(struct hrtimer *data)
 	wait_queue_head_t *q;
 
 	vcpu  = container_of(data, struct kvm_vcpu, arch.hlt_timer);
+	q = &vcpu->wq;
+
 	if (vcpu->arch.mp_state != KVM_MP_STATE_HALTED)
 		goto out;
 
-	q = &vcpu->wq;
-	if (waitqueue_active(q)) {
-		vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
+	if (waitqueue_active(q))
 		wake_up_interruptible(q);
-	}
+
 out:
+	vcpu->arch.timer_fired = 1;
 	vcpu->arch.timer_check = 1;
 	return HRTIMER_NORESTART;
 }
@@ -1700,12 +1706,14 @@ static void vcpu_kick_intr(void *info)
 void kvm_vcpu_kick(struct kvm_vcpu *vcpu)
 {
 	int ipi_pcpu = vcpu->cpu;
+	int cpu = get_cpu();
 
 	if (waitqueue_active(&vcpu->wq))
 		wake_up_interruptible(&vcpu->wq);
 
-	if (vcpu->guest_mode)
+	if (vcpu->guest_mode && cpu != ipi_pcpu)
 		smp_call_function_single(ipi_pcpu, vcpu_kick_intr, vcpu, 0);
+	put_cpu();
 }
 
 int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig)
@@ -1715,13 +1723,7 @@ int kvm_apic_set_irq(struct kvm_vcpu *vcpu, u8 vec, u8 trig)
 
 	if (!test_and_set_bit(vec, &vpd->irr[0])) {
 		vcpu->arch.irq_new_pending = 1;
-		 if (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE)
-			kvm_vcpu_kick(vcpu);
-		else if (vcpu->arch.mp_state == KVM_MP_STATE_HALTED) {
-			vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
-			if (waitqueue_active(&vcpu->wq))
-				wake_up_interruptible(&vcpu->wq);
-		}
+		kvm_vcpu_kick(vcpu);
 		return 1;
 	}
 	return 0;
@@ -1791,7 +1793,7 @@ int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu)
 
 int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
 {
-	return 0;
+	return vcpu->arch.timer_fired;
 }
 
 gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)

arch/ia64/kvm/kvm_fw.c

@@ -286,6 +286,12 @@ static  u64 kvm_get_pal_call_index(struct kvm_vcpu *vcpu)
 	return index;
 }
 
+static void prepare_for_halt(struct kvm_vcpu *vcpu)
+{
+	vcpu->arch.timer_pending = 1;
+	vcpu->arch.timer_fired = 0;
+}
+
 int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
 
@@ -304,11 +310,10 @@ int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *run)
 		break;
 	case PAL_HALT_LIGHT:
 	{
-		vcpu->arch.timer_pending = 1;
 		INIT_PAL_STATUS_SUCCESS(result);
+		prepare_for_halt(vcpu);
 		if (kvm_highest_pending_irq(vcpu) == -1)
 			ret = kvm_emulate_halt(vcpu);
-
 	}
 		break;
 

arch/ia64/kvm/process.c

@@ -713,7 +713,7 @@ void leave_hypervisor_tail(void)
 				if (!(VCPU(v, itv) & (1 << 16))) {
 					vcpu_pend_interrupt(v, VCPU(v, itv)
 							& 0xff);
-				VMX(v, itc_check) = 0;
+					VMX(v, itc_check) = 0;
 				} else {
 					v->arch.timer_pending = 1;
 				}

arch/mips/Kconfig

@@ -327,7 +327,6 @@ config SGI_IP22
 	select IP22_CPU_SCACHE
 	select IRQ_CPU
 	select GENERIC_ISA_DMA_SUPPORT_BROKEN
-	select SGI_HAS_DS1286
 	select SGI_HAS_I8042
 	select SGI_HAS_INDYDOG
 	select SGI_HAS_HAL2
@@ -382,7 +381,6 @@ config SGI_IP28
 	select HW_HAS_EISA
 	select I8253
 	select I8259
-	select SGI_HAS_DS1286
 	select SGI_HAS_I8042
 	select SGI_HAS_INDYDOG
 	select SGI_HAS_HAL2
@@ -893,9 +891,6 @@ config EMMA2RH
 config SERIAL_RM9000
 	bool
 
-config SGI_HAS_DS1286
-	bool
-
 config SGI_HAS_INDYDOG
 	bool
 

arch/mips/configs/ip22_defconfig

@@ -771,7 +771,6 @@ CONFIG_WATCHDOG=y
 CONFIG_INDYDOG=m
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
-CONFIG_SGI_DS1286=m
 # CONFIG_R3964 is not set
 CONFIG_RAW_DRIVER=m
 CONFIG_MAX_RAW_DEVS=256

arch/mips/configs/ip27_defconfig

@@ -701,7 +701,6 @@ CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_WATCHDOG is not set
 CONFIG_HW_RANDOM=m
 # CONFIG_RTC is not set
-CONFIG_SGI_IP27_RTC=y
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
 # CONFIG_DRM is not set

arch/mips/configs/ip28_defconfig

@@ -70,7 +70,6 @@ CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
 CONFIG_IRQ_CPU=y
 CONFIG_SWAP_IO_SPACE=y
-CONFIG_SGI_HAS_DS1286=y
 CONFIG_SGI_HAS_INDYDOG=y
 CONFIG_SGI_HAS_SEEQ=y
 CONFIG_SGI_HAS_WD93=y
@@ -585,7 +584,6 @@ CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
-CONFIG_SGI_DS1286=y
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set

arch/mips/include/asm/bitops.h

@@ -558,39 +558,67 @@ static inline void __clear_bit_unlock(unsigned long nr, volatile unsigned long *
 	__clear_bit(nr, addr);
 }
 
-#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64)
-
 /*
  * Return the bit position (0..63) of the most significant 1 bit in a word
  * Returns -1 if no 1 bit exists
  */
-static inline unsigned long __fls(unsigned long x)
+static inline unsigned long __fls(unsigned long word)
 {
-	int lz;
+	int num;
 
-	if (sizeof(x) == 4) {
+	if (BITS_PER_LONG == 32 &&
+	    __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r) {
 		__asm__(
 		"	.set	push					\n"
 		"	.set	mips32					\n"
 		"	clz	%0, %1					\n"
 		"	.set	pop					\n"
-		: "=r" (lz)
-		: "r" (x));
+		: "=r" (num)
+		: "r" (word));
 
-		return 31 - lz;
+		return 31 - num;
 	}
 
-	BUG_ON(sizeof(x) != 8);
+	if (BITS_PER_LONG == 64 &&
+	    __builtin_constant_p(cpu_has_mips64) && cpu_has_mips64) {
+		__asm__(
+		"	.set	push					\n"
+		"	.set	mips64					\n"
+		"	dclz	%0, %1					\n"
+		"	.set	pop					\n"
+		: "=r" (num)
+		: "r" (word));
 
-	__asm__(
-	"	.set	push						\n"
-	"	.set	mips64						\n"
-	"	dclz	%0, %1						\n"
-	"	.set	pop						\n"
-	: "=r" (lz)
-	: "r" (x));
+		return 63 - num;
+	}
+
+	num = BITS_PER_LONG - 1;
 
-	return 63 - lz;
+#if BITS_PER_LONG == 64
+	if (!(word & (~0ul << 32))) {
+		num -= 32;
+		word <<= 32;
+	}
+#endif
+	if (!(word & (~0ul << (BITS_PER_LONG-16)))) {
+		num -= 16;
+		word <<= 16;
+	}
+	if (!(word & (~0ul << (BITS_PER_LONG-8)))) {
+		num -= 8;
+		word <<= 8;
+	}
+	if (!(word & (~0ul << (BITS_PER_LONG-4)))) {
+		num -= 4;
+		word <<= 4;
+	}
+	if (!(word & (~0ul << (BITS_PER_LONG-2)))) {
+		num -= 2;
+		word <<= 2;
+	}
+	if (!(word & (~0ul << (BITS_PER_LONG-1))))
+		num -= 1;
+	return num;
 }
 
 /*
@@ -612,23 +640,43 @@ static inline unsigned long __ffs(unsigned long word)
  * This is defined the same way as ffs.
  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
  */
-static inline int fls(int word)
+static inline int fls(int x)
 {
-	__asm__("clz %0, %1" : "=r" (word) : "r" (word));
+	int r;
 
-	return 32 - word;
-}
+	if (__builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r) {
+		__asm__("clz %0, %1" : "=r" (x) : "r" (x));
 
-#if defined(CONFIG_64BIT) && defined(CONFIG_CPU_MIPS64)
-static inline int fls64(__u64 word)
-{
-	__asm__("dclz %0, %1" : "=r" (word) : "r" (word));
+		return 32 - x;
+	}
 
-	return 64 - word;
+	r = 32;
+	if (!x)
+		return 0;
+	if (!(x & 0xffff0000u)) {
+		x <<= 16;
+		r -= 16;
+	}
+	if (!(x & 0xff000000u)) {
+		x <<= 8;
+		r -= 8;
+	}
+	if (!(x & 0xf0000000u)) {
+		x <<= 4;
+		r -= 4;
+	}
+	if (!(x & 0xc0000000u)) {
+		x <<= 2;
+		r -= 2;
+	}
+	if (!(x & 0x80000000u)) {
+		x <<= 1;
+		r -= 1;
+	}
+	return r;
 }
-#else
+
 #include <asm-generic/bitops/fls64.h>
-#endif
 
 /*
  * ffs - find first bit set.
@@ -646,16 +694,6 @@ static inline int ffs(int word)
 	return fls(word & -word);
 }
 
-#else
-
-#include <asm-generic/bitops/__ffs.h>
-#include <asm-generic/bitops/__fls.h>
-#include <asm-generic/bitops/ffs.h>
-#include <asm-generic/bitops/fls.h>
-#include <asm-generic/bitops/fls64.h>
-
-#endif /*defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64) */
-
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/find.h>
 

arch/mips/include/asm/break.h

@@ -29,6 +29,7 @@
 #define _BRK_THREADBP	11	/* For threads, user bp (used by debuggers) */
 #define BRK_BUG		512	/* Used by BUG() */
 #define BRK_KDB		513	/* Used in KDB_ENTER() */
+#define BRK_MEMU	514	/* Used by FPU emulator */
 #define BRK_MULOVF	1023	/* Multiply overflow */
 
 #endif /* __ASM_BREAK_H */

arch/mips/include/asm/byteorder.h

@@ -11,11 +11,19 @@
 #include <linux/compiler.h>
 #include <asm/types.h>
 
-#ifdef __GNUC__
+#if defined(__MIPSEB__)
+# define __BIG_ENDIAN
+#elif defined(__MIPSEL__)
+# define __LITTLE_ENDIAN
+#else
+# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
+#endif
+
+#define __SWAB_64_THRU_32__
 
 #ifdef CONFIG_CPU_MIPSR2
 
-static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
 {
 	__asm__(
 	"	wsbh	%0, %1			\n"
@@ -24,9 +32,9 @@ static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
 
 	return x;
 }
-#define __arch__swab16(x)	___arch__swab16(x)
+#define __arch_swab16 __arch_swab16
 
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
 {
 	__asm__(
 	"	wsbh	%0, %1			\n"
@@ -36,11 +44,10 @@ static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
 
 	return x;
 }
-#define __arch__swab32(x)	___arch__swab32(x)
+#define __arch_swab32 __arch_swab32
 
 #ifdef CONFIG_CPU_MIPS64_R2
-
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
+static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
 {
 	__asm__(
 	"	dsbh	%0, %1			\n"
@@ -51,26 +58,11 @@ static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
 
 	return x;
 }
-
-#define __arch__swab64(x)	___arch__swab64(x)
-
+#define __arch_swab64 __arch_swab64
 #endif /* CONFIG_CPU_MIPS64_R2 */
 
 #endif /* CONFIG_CPU_MIPSR2 */
 
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-#  define __BYTEORDER_HAS_U64__
-#  define __SWAB_64_THRU_32__
-#endif
-
-#endif /* __GNUC__ */
-
-#if defined(__MIPSEB__)
-#  include <linux/byteorder/big_endian.h>
-#elif defined(__MIPSEL__)
-#  include <linux/byteorder/little_endian.h>
-#else
-#  error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
-#endif
+#include <linux/byteorder.h>
 
 #endif /* _ASM_BYTEORDER_H */

arch/mips/include/asm/cpu-features.h

@@ -141,6 +141,8 @@
 #define cpu_has_mips64	(cpu_has_mips64r1 | cpu_has_mips64r2)
 #define cpu_has_mips_r1	(cpu_has_mips32r1 | cpu_has_mips64r1)
 #define cpu_has_mips_r2	(cpu_has_mips32r2 | cpu_has_mips64r2)
+#define cpu_has_mips_r	(cpu_has_mips32r1 | cpu_has_mips32r2 | \
+			 cpu_has_mips64r1 | cpu_has_mips64r2)
 
 #ifndef cpu_has_dsp
 #define cpu_has_dsp		(cpu_data[0].ases & MIPS_ASE_DSP)

arch/mips/include/asm/ds1286.h

@@ -1,15 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Machine dependent access functions for RTC registers.
- *
- * Copyright (C) 2003 Ralf Baechle (ralf@linux-mips.org)
- */
-#ifndef _ASM_DS1286_H
-#define _ASM_DS1286_H
-
-#include <ds1286.h>
-
-#endif /* _ASM_DS1286_H */

arch/mips/include/asm/fpu_emulator.h

@@ -23,6 +23,9 @@
 #ifndef _ASM_FPU_EMULATOR_H
 #define _ASM_FPU_EMULATOR_H
 
+#include <asm/break.h>
+#include <asm/inst.h>
+
 struct mips_fpu_emulator_stats {
 	unsigned int emulated;
 	unsigned int loads;
@@ -34,4 +37,18 @@ struct mips_fpu_emulator_stats {
 
 extern struct mips_fpu_emulator_stats fpuemustats;
 
+extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir,
+	unsigned long cpc);
+extern int do_dsemulret(struct pt_regs *xcp);
+
+/*
+ * Instruction inserted following the badinst to further tag the sequence
+ */
+#define BD_COOKIE 0x0000bd36	/* tne $0, $0 with baggage */
+
+/*
+ * Break instruction with special math emu break code set
+ */
+#define BREAK_MATH (0x0000000d | (BRK_MEMU << 16))
+
 #endif /* _ASM_FPU_EMULATOR_H */

arch/mips/include/asm/m48t35.h

@@ -1,27 +0,0 @@
-/*
- *  Registers for the SGS-Thomson M48T35 Timekeeper RAM chip
- */
-#ifndef _ASM_M48T35_H
-#define _ASM_M48T35_H
-
-#include <linux/spinlock.h>
-
-extern spinlock_t rtc_lock;
-
-struct m48t35_rtc {
-	volatile u8	pad[0x7ff8];    /* starts at 0x7ff8 */
-	volatile u8	control;
-	volatile u8	sec;
-	volatile u8	min;
-	volatile u8	hour;
-	volatile u8	day;
-	volatile u8	date;
-	volatile u8	month;
-	volatile u8	year;
-};
-
-#define M48T35_RTC_SET		0x80
-#define M48T35_RTC_STOPPED	0x80
-#define M48T35_RTC_READ		0x40
-
-#endif /* _ASM_M48T35_H */

arch/mips/kernel/cpu-probe.c

@@ -286,11 +286,12 @@ static inline int __cpu_has_fpu(void)
 #define R4K_OPTS (MIPS_CPU_TLB | MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE \
 		| MIPS_CPU_COUNTER)
 
-static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
+static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_R2000:
 		c->cputype = CPU_R2000;
+		__cpu_name[cpu] = "R2000";
 		c->isa_level = MIPS_CPU_ISA_I;
 		c->options = MIPS_CPU_TLB | MIPS_CPU_3K_CACHE |
 		             MIPS_CPU_NOFPUEX;
@@ -299,13 +300,19 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		c->tlbsize = 64;
 		break;
 	case PRID_IMP_R3000:
-		if ((c->processor_id & 0xff) == PRID_REV_R3000A)
-			if (cpu_has_confreg())
+		if ((c->processor_id & 0xff) == PRID_REV_R3000A) {
+			if (cpu_has_confreg()) {
 				c->cputype = CPU_R3081E;
-			else
+				__cpu_name[cpu] = "R3081";
+			} else {
 				c->cputype = CPU_R3000A;
-		else
+				__cpu_name[cpu] = "R3000A";
+			}
+			break;
+		} else {
 			c->cputype = CPU_R3000;
+			__cpu_name[cpu] = "R3000";
+		}
 		c->isa_level = MIPS_CPU_ISA_I;
 		c->options = MIPS_CPU_TLB | MIPS_CPU_3K_CACHE |
 		             MIPS_CPU_NOFPUEX;
@@ -315,15 +322,21 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R4000:
 		if (read_c0_config() & CONF_SC) {
-			if ((c->processor_id & 0xff) >= PRID_REV_R4400)
+			if ((c->processor_id & 0xff) >= PRID_REV_R4400) {
 				c->cputype = CPU_R4400PC;
-			else
+				__cpu_name[cpu] = "R4400PC";
+			} else {
 				c->cputype = CPU_R4000PC;
+				__cpu_name[cpu] = "R4000PC";
+			}
 		} else {
-			if ((c->processor_id & 0xff) >= PRID_REV_R4400)
+			if ((c->processor_id & 0xff) >= PRID_REV_R4400) {
 				c->cputype = CPU_R4400SC;
-			else
+				__cpu_name[cpu] = "R4400SC";
+			} else {
 				c->cputype = CPU_R4000SC;
+				__cpu_name[cpu] = "R4000SC";
+			}
 		}
 
 		c->isa_level = MIPS_CPU_ISA_III;
@@ -336,25 +349,34 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		switch (c->processor_id & 0xf0) {
 		case PRID_REV_VR4111:
 			c->cputype = CPU_VR4111;
+			__cpu_name[cpu] = "NEC VR4111";
 			break;
 		case PRID_REV_VR4121:
 			c->cputype = CPU_VR4121;
+			__cpu_name[cpu] = "NEC VR4121";
 			break;
 		case PRID_REV_VR4122:
-			if ((c->processor_id & 0xf) < 0x3)
+			if ((c->processor_id & 0xf) < 0x3) {
 				c->cputype = CPU_VR4122;
-			else
+				__cpu_name[cpu] = "NEC VR4122";
+			} else {
 				c->cputype = CPU_VR4181A;
+				__cpu_name[cpu] = "NEC VR4181A";
+			}
 			break;
 		case PRID_REV_VR4130:
-			if ((c->processor_id & 0xf) < 0x4)
+			if ((c->processor_id & 0xf) < 0x4) {
 				c->cputype = CPU_VR4131;
-			else
+				__cpu_name[cpu] = "NEC VR4131";
+			} else {
 				c->cputype = CPU_VR4133;
+				__cpu_name[cpu] = "NEC VR4133";
+			}
 			break;
 		default:
 			printk(KERN_INFO "Unexpected CPU of NEC VR4100 series\n");
 			c->cputype = CPU_VR41XX;
+			__cpu_name[cpu] = "NEC Vr41xx";
 			break;
 		}
 		c->isa_level = MIPS_CPU_ISA_III;
@@ -363,6 +385,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R4300:
 		c->cputype = CPU_R4300;
+		__cpu_name[cpu] = "R4300";
 		c->isa_level = MIPS_CPU_ISA_III;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 		             MIPS_CPU_LLSC;
@@ -370,6 +393,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R4600:
 		c->cputype = CPU_R4600;
+		__cpu_name[cpu] = "R4600";
 		c->isa_level = MIPS_CPU_ISA_III;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 			     MIPS_CPU_LLSC;
@@ -384,6 +408,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		 * it's c0_prid id number with the TX3900.
 		 */
 		c->cputype = CPU_R4650;
+		__cpu_name[cpu] = "R4650";
 	 	c->isa_level = MIPS_CPU_ISA_III;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_LLSC;
 	        c->tlbsize = 48;
@@ -395,25 +420,26 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 
 		if ((c->processor_id & 0xf0) == (PRID_REV_TX3927 & 0xf0)) {
 			c->cputype = CPU_TX3927;
+			__cpu_name[cpu] = "TX3927";
 			c->tlbsize = 64;
 		} else {
 			switch (c->processor_id & 0xff) {
 			case PRID_REV_TX3912:
 				c->cputype = CPU_TX3912;
+				__cpu_name[cpu] = "TX3912";
 				c->tlbsize = 32;
 				break;
 			case PRID_REV_TX3922:
 				c->cputype = CPU_TX3922;
+				__cpu_name[cpu] = "TX3922";
 				c->tlbsize = 64;
 				break;
-			default:
-				c->cputype = CPU_UNKNOWN;
-				break;
 			}
 		}
 		break;
 	case PRID_IMP_R4700:
 		c->cputype = CPU_R4700;
+		__cpu_name[cpu] = "R4700";
 		c->isa_level = MIPS_CPU_ISA_III;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 		             MIPS_CPU_LLSC;
@@ -421,6 +447,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_TX49:
 		c->cputype = CPU_TX49XX;
+		__cpu_name[cpu] = "R49XX";
 		c->isa_level = MIPS_CPU_ISA_III;
 		c->options = R4K_OPTS | MIPS_CPU_LLSC;
 		if (!(c->processor_id & 0x08))
@@ -429,6 +456,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R5000:
 		c->cputype = CPU_R5000;
+		__cpu_name[cpu] = "R5000";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 		             MIPS_CPU_LLSC;
@@ -436,6 +464,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R5432:
 		c->cputype = CPU_R5432;
+		__cpu_name[cpu] = "R5432";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 		             MIPS_CPU_WATCH | MIPS_CPU_LLSC;
@@ -443,6 +472,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R5500:
 		c->cputype = CPU_R5500;
+		__cpu_name[cpu] = "R5500";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 		             MIPS_CPU_WATCH | MIPS_CPU_LLSC;
@@ -450,6 +480,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_NEVADA:
 		c->cputype = CPU_NEVADA;
+		__cpu_name[cpu] = "Nevada";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 		             MIPS_CPU_DIVEC | MIPS_CPU_LLSC;
@@ -457,6 +488,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R6000:
 		c->cputype = CPU_R6000;
+		__cpu_name[cpu] = "R6000";
 		c->isa_level = MIPS_CPU_ISA_II;
 		c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
 		             MIPS_CPU_LLSC;
@@ -464,6 +496,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R6000A:
 		c->cputype = CPU_R6000A;
+		__cpu_name[cpu] = "R6000A";
 		c->isa_level = MIPS_CPU_ISA_II;
 		c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
 		             MIPS_CPU_LLSC;
@@ -471,6 +504,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_RM7000:
 		c->cputype = CPU_RM7000;
+		__cpu_name[cpu] = "RM7000";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 		             MIPS_CPU_LLSC;
@@ -486,6 +520,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_RM9000:
 		c->cputype = CPU_RM9000;
+		__cpu_name[cpu] = "RM9000";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
 		             MIPS_CPU_LLSC;
@@ -500,6 +535,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R8000:
 		c->cputype = CPU_R8000;
+		__cpu_name[cpu] = "RM8000";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
 		             MIPS_CPU_FPU | MIPS_CPU_32FPR |
@@ -508,6 +544,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R10000:
 		c->cputype = CPU_R10000;
+		__cpu_name[cpu] = "R10000";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
 		             MIPS_CPU_FPU | MIPS_CPU_32FPR |
@@ -517,6 +554,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R12000:
 		c->cputype = CPU_R12000;
+		__cpu_name[cpu] = "R12000";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
 		             MIPS_CPU_FPU | MIPS_CPU_32FPR |
@@ -526,6 +564,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_R14000:
 		c->cputype = CPU_R14000;
+		__cpu_name[cpu] = "R14000";
 		c->isa_level = MIPS_CPU_ISA_IV;
 		c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
 		             MIPS_CPU_FPU | MIPS_CPU_32FPR |
@@ -535,6 +574,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
 		break;
 	case PRID_IMP_LOONGSON2:
 		c->cputype = CPU_LOONGSON2;
+		__cpu_name[cpu] = "ICT Loongson-2";
 		c->isa_level = MIPS_CPU_ISA_III;
 		c->options = R4K_OPTS |
 			     MIPS_CPU_FPU | MIPS_CPU_LLSC |
@@ -652,21 +692,24 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
 
 static void __cpuinit decode_configs(struct cpuinfo_mips *c)
 {
+	int ok;
+
 	/* MIPS32 or MIPS64 compliant CPU.  */
 	c->options = MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE | MIPS_CPU_COUNTER |
 	             MIPS_CPU_DIVEC | MIPS_CPU_LLSC | MIPS_CPU_MCHECK;
 
 	c->scache.flags = MIPS_CACHE_NOT_PRESENT;
 
-	/* Read Config registers.  */
-	if (!decode_config0(c))
-		return;			/* actually worth a panic() */
-	if (!decode_config1(c))
-		return;
-	if (!decode_config2(c))
-		return;
-	if (!decode_config3(c))
-		return;
+	ok = decode_config0(c);			/* Read Config registers.  */
+	BUG_ON(!ok);				/* Arch spec violation!  */
+	if (ok)
+		ok = decode_config1(c);
+	if (ok)
+		ok = decode_config2(c);
+	if (ok)
+		ok = decode_config3(c);
+
+	mips_probe_watch_registers(c);
 }
 
 #ifdef CONFIG_CPU_MIPSR2
@@ -675,52 +718,62 @@ extern void spram_config(void);
 static inline void spram_config(void) {}
 #endif
 
-static inline void cpu_probe_mips(struct cpuinfo_mips *c)
+static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
-	mips_probe_watch_registers(c);
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_4KC:
 		c->cputype = CPU_4KC;
+		__cpu_name[cpu] = "MIPS 4Kc";
 		break;
 	case PRID_IMP_4KEC:
 		c->cputype = CPU_4KEC;
+		__cpu_name[cpu] = "MIPS 4KEc";
 		break;
 	case PRID_IMP_4KECR2:
 		c->cputype = CPU_4KEC;
+		__cpu_name[cpu] = "MIPS 4KEc";
 		break;
 	case PRID_IMP_4KSC:
 	case PRID_IMP_4KSD:
 		c->cputype = CPU_4KSC;
+		__cpu_name[cpu] = "MIPS 4KSc";
 		break;
 	case PRID_IMP_5KC:
 		c->cputype = CPU_5KC;
+		__cpu_name[cpu] = "MIPS 5Kc";
 		break;
 	case PRID_IMP_20KC:
 		c->cputype = CPU_20KC;
+		__cpu_name[cpu] = "MIPS 20Kc";
 		break;
 	case PRID_IMP_24K:
 	case PRID_IMP_24KE:
 		c->cputype = CPU_24K;
+		__cpu_name[cpu] = "MIPS 24Kc";
 		break;
 	case PRID_IMP_25KF:
 		c->cputype = CPU_25KF;
+		__cpu_name[cpu] = "MIPS 25Kc";
 		break;
 	case PRID_IMP_34K:
 		c->cputype = CPU_34K;
+		__cpu_name[cpu] = "MIPS 34Kc";
 		break;
 	case PRID_IMP_74K:
 		c->cputype = CPU_74K;
+		__cpu_name[cpu] = "MIPS 74Kc";
 		break;
 	case PRID_IMP_1004K:
 		c->cputype = CPU_1004K;
+		__cpu_name[cpu] = "MIPS 1004Kc";
 		break;
 	}
 
 	spram_config();
 }
 
-static inline void cpu_probe_alchemy(struct cpuinfo_mips *c)
+static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
 	switch (c->processor_id & 0xff00) {
@@ -729,23 +782,31 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c)
 		switch ((c->processor_id >> 24) & 0xff) {
 		case 0:
 			c->cputype = CPU_AU1000;
+			__cpu_name[cpu] = "Au1000";
 			break;
 		case 1:
 			c->cputype = CPU_AU1500;
+			__cpu_name[cpu] = "Au1500";
 			break;
 		case 2:
 			c->cputype = CPU_AU1100;
+			__cpu_name[cpu] = "Au1100";
 			break;
 		case 3:
 			c->cputype = CPU_AU1550;
+			__cpu_name[cpu] = "Au1550";
 			break;
 		case 4:
 			c->cputype = CPU_AU1200;
-			if (2 == (c->processor_id & 0xff))
+			__cpu_name[cpu] = "Au1200";
+			if ((c->processor_id & 0xff) == 2) {
 				c->cputype = CPU_AU1250;
+				__cpu_name[cpu] = "Au1250";
+			}
 			break;
 		case 5:
 			c->cputype = CPU_AU1210;
+			__cpu_name[cpu] = "Au1210";
 			break;
 		default:
 			panic("Unknown Au Core!");
@@ -755,154 +816,67 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c)
 	}
 }
 
-static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
+static inline void cpu_probe_sibyte(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
 
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_SB1:
 		c->cputype = CPU_SB1;
+		__cpu_name[cpu] = "SiByte SB1";
 		/* FPU in pass1 is known to have issues. */
 		if ((c->processor_id & 0xff) < 0x02)
 			c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR);
 		break;
 	case PRID_IMP_SB1A:
 		c->cputype = CPU_SB1A;
+		__cpu_name[cpu] = "SiByte SB1A";
 		break;
 	}
 }
 
-static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c)
+static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_SR71000:
 		c->cputype = CPU_SR71000;
+		__cpu_name[cpu] = "Sandcraft SR71000";
 		c->scache.ways = 8;
 		c->tlbsize = 64;
 		break;
 	}
 }
 
-static inline void cpu_probe_nxp(struct cpuinfo_mips *c)
+static inline void cpu_probe_nxp(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_PR4450:
 		c->cputype = CPU_PR4450;
+		__cpu_name[cpu] = "Philips PR4450";
 		c->isa_level = MIPS_CPU_ISA_M32R1;
 		break;
-	default:
-		panic("Unknown NXP Core!"); /* REVISIT: die? */
-		break;
 	}
 }
 
-
-static inline void cpu_probe_broadcom(struct cpuinfo_mips *c)
+static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_BCM3302:
 		c->cputype = CPU_BCM3302;
+		__cpu_name[cpu] = "Broadcom BCM3302";
 		break;
 	case PRID_IMP_BCM4710:
 		c->cputype = CPU_BCM4710;
-		break;
-	default:
-		c->cputype = CPU_UNKNOWN;
+		__cpu_name[cpu] = "Broadcom BCM4710";
 		break;
 	}
 }
 
 const char *__cpu_name[NR_CPUS];
 
-/*
- * Name a CPU
- */
-static __cpuinit const char *cpu_to_name(struct cpuinfo_mips *c)
-{
-	const char *name = NULL;
-
-	switch (c->cputype) {
-	case CPU_UNKNOWN:	name = "unknown"; break;
-	case CPU_R2000:		name = "R2000"; break;
-	case CPU_R3000:		name = "R3000"; break;
-	case CPU_R3000A:	name = "R3000A"; break;
-	case CPU_R3041:		name = "R3041"; break;
-	case CPU_R3051:		name = "R3051"; break;
-	case CPU_R3052:		name = "R3052"; break;
-	case CPU_R3081:		name = "R3081"; break;
-	case CPU_R3081E:	name = "R3081E"; break;
-	case CPU_R4000PC:	name = "R4000PC"; break;
-	case CPU_R4000SC:	name = "R4000SC"; break;
-	case CPU_R4000MC:	name = "R4000MC"; break;
-	case CPU_R4200:		name = "R4200"; break;
-	case CPU_R4400PC:	name = "R4400PC"; break;
-	case CPU_R4400SC:	name = "R4400SC"; break;
-	case CPU_R4400MC:	name = "R4400MC"; break;
-	case CPU_R4600:		name = "R4600"; break;
-	case CPU_R6000:		name = "R6000"; break;
-	case CPU_R6000A:	name = "R6000A"; break;
-	case CPU_R8000:		name = "R8000"; break;
-	case CPU_R10000:	name = "R10000"; break;
-	case CPU_R12000:	name = "R12000"; break;
-	case CPU_R14000:	name = "R14000"; break;
-	case CPU_R4300:		name = "R4300"; break;
-	case CPU_R4650:		name = "R4650"; break;
-	case CPU_R4700:		name = "R4700"; break;
-	case CPU_R5000:		name = "R5000"; break;
-	case CPU_R5000A:	name = "R5000A"; break;
-	case CPU_R4640:		name = "R4640"; break;
-	case CPU_NEVADA:	name = "Nevada"; break;
-	case CPU_RM7000:	name = "RM7000"; break;
-	case CPU_RM9000:	name = "RM9000"; break;
-	case CPU_R5432:		name = "R5432"; break;
-	case CPU_4KC:		name = "MIPS 4Kc"; break;
-	case CPU_5KC:		name = "MIPS 5Kc"; break;
-	case CPU_R4310:		name = "R4310"; break;
-	case CPU_SB1:		name = "SiByte SB1"; break;
-	case CPU_SB1A:		name = "SiByte SB1A"; break;
-	case CPU_TX3912:	name = "TX3912"; break;
-	case CPU_TX3922:	name = "TX3922"; break;
-	case CPU_TX3927:	name = "TX3927"; break;
-	case CPU_AU1000:	name = "Au1000"; break;
-	case CPU_AU1500:	name = "Au1500"; break;
-	case CPU_AU1100:	name = "Au1100"; break;
-	case CPU_AU1550:	name = "Au1550"; break;
-	case CPU_AU1200:	name = "Au1200"; break;
-	case CPU_AU1210:	name = "Au1210"; break;
-	case CPU_AU1250:	name = "Au1250"; break;
-	case CPU_4KEC:		name = "MIPS 4KEc"; break;
-	case CPU_4KSC:		name = "MIPS 4KSc"; break;
-	case CPU_VR41XX:	name = "NEC Vr41xx"; break;
-	case CPU_R5500:		name = "R5500"; break;
-	case CPU_TX49XX:	name = "TX49xx"; break;
-	case CPU_20KC:		name = "MIPS 20Kc"; break;
-	case CPU_24K:		name = "MIPS 24K"; break;
-	case CPU_25KF:		name = "MIPS 25Kf"; break;
-	case CPU_34K:		name = "MIPS 34K"; break;
-	case CPU_1004K:		name = "MIPS 1004K"; break;
-	case CPU_74K:		name = "MIPS 74K"; break;
-	case CPU_VR4111:	name = "NEC VR4111"; break;
-	case CPU_VR4121:	name = "NEC VR4121"; break;
-	case CPU_VR4122:	name = "NEC VR4122"; break;
-	case CPU_VR4131:	name = "NEC VR4131"; break;
-	case CPU_VR4133:	name = "NEC VR4133"; break;
-	case CPU_VR4181:	name = "NEC VR4181"; break;
-	case CPU_VR4181A:	name = "NEC VR4181A"; break;
-	case CPU_SR71000:	name = "Sandcraft SR71000"; break;
-	case CPU_BCM3302:	name = "Broadcom BCM3302"; break;
-	case CPU_BCM4710:	name = "Broadcom BCM4710"; break;
-	case CPU_PR4450:	name = "Philips PR4450"; break;
-	case CPU_LOONGSON2:	name = "ICT Loongson-2"; break;
-	default:
-		BUG();
-	}
-
-	return name;
-}
-
 __cpuinit void cpu_probe(void)
 {
 	struct cpuinfo_mips *c = &current_cpu_data;
@@ -915,30 +889,31 @@ __cpuinit void cpu_probe(void)
 	c->processor_id = read_c0_prid();
 	switch (c->processor_id & 0xff0000) {
 	case PRID_COMP_LEGACY:
-		cpu_probe_legacy(c);
+		cpu_probe_legacy(c, cpu);
 		break;
 	case PRID_COMP_MIPS:
-		cpu_probe_mips(c);
+		cpu_probe_mips(c, cpu);
 		break;
 	case PRID_COMP_ALCHEMY:
-		cpu_probe_alchemy(c);
+		cpu_probe_alchemy(c, cpu);
 		break;
 	case PRID_COMP_SIBYTE:
-		cpu_probe_sibyte(c);
+		cpu_probe_sibyte(c, cpu);
 		break;
 	case PRID_COMP_BROADCOM:
-		cpu_probe_broadcom(c);
+		cpu_probe_broadcom(c, cpu);
 		break;
 	case PRID_COMP_SANDCRAFT:
-		cpu_probe_sandcraft(c);
+		cpu_probe_sandcraft(c, cpu);
 		break;
 	case PRID_COMP_NXP:
-		cpu_probe_nxp(c);
+		cpu_probe_nxp(c, cpu);
 		break;
-	default:
-		c->cputype = CPU_UNKNOWN;
 	}
 
+	BUG_ON(!__cpu_name[cpu]);
+	BUG_ON(c->cputype == CPU_UNKNOWN);
+
 	/*
 	 * Platform code can force the cpu type to optimize code
 	 * generation. In that case be sure the cpu type is correctly
@@ -958,8 +933,6 @@ __cpuinit void cpu_probe(void)
 		}
 	}
 
-	__cpu_name[cpu] = cpu_to_name(c);
-
 	if (cpu_has_mips_r2)
 		c->srsets = ((read_c0_srsctl() >> 26) & 0x0f) + 1;
 	else

arch/mips/kernel/smp.c

@@ -195,12 +195,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 /* preload SMP state for boot cpu */
 void __devinit smp_prepare_boot_cpu(void)
 {
-	/*
-	 * This assumes that bootup is always handled by the processor
-	 * with the logic and physical number 0.
-	 */
-	__cpu_number_map[0] = 0;
-	__cpu_logical_map[0] = 0;
 	cpu_set(0, phys_cpu_present_map);
 	cpu_set(0, cpu_online_map);
 	cpu_set(0, cpu_callin_map);

arch/mips/kernel/traps.c

@@ -32,6 +32,7 @@
 #include <asm/cpu.h>
 #include <asm/dsp.h>
 #include <asm/fpu.h>
+#include <asm/fpu_emulator.h>
 #include <asm/mipsregs.h>
 #include <asm/mipsmtregs.h>
 #include <asm/module.h>
@@ -722,6 +723,21 @@ static void do_trap_or_bp(struct pt_regs *regs, unsigned int code,
 		die_if_kernel("Kernel bug detected", regs);
 		force_sig(SIGTRAP, current);
 		break;
+	case BRK_MEMU:
+		/*
+		 * Address errors may be deliberately induced by the FPU
+		 * emulator to retake control of the CPU after executing the
+		 * instruction in the delay slot of an emulated branch.
+		 *
+		 * Terminate if exception was recognized as a delay slot return
+		 * otherwise handle as normal.
+		 */
+		if (do_dsemulret(regs))
+			return;
+
+		die_if_kernel("Math emu break/trap", regs);
+		force_sig(SIGTRAP, current);
+		break;
 	default:
 		scnprintf(b, sizeof(b), "%s instruction in kernel code", str);
 		die_if_kernel(b, regs);
@@ -1555,6 +1571,8 @@ void __cpuinit set_uncached_handler(unsigned long offset, void *addr,
 #ifdef CONFIG_64BIT
 	unsigned long uncached_ebase = TO_UNCAC(ebase);
 #endif
+	if (cpu_has_mips_r2)
+		ebase += (read_c0_ebase() & 0x3ffff000);
 
 	if (!addr)
 		panic(panic_null_cerr);
@@ -1588,8 +1606,11 @@ void __init trap_init(void)
 
 	if (cpu_has_veic || cpu_has_vint)
 		ebase = (unsigned long) alloc_bootmem_low_pages(0x200 + VECTORSPACING*64);
-	else
+	else {
 		ebase = CAC_BASE;
+		if (cpu_has_mips_r2)
+			ebase += (read_c0_ebase() & 0x3ffff000);
+	}
 
 	per_cpu_trap_init();
 
@@ -1697,11 +1718,11 @@ void __init trap_init(void)
 
 	if (cpu_has_vce)
 		/* Special exception: R4[04]00 uses also the divec space. */
-		memcpy((void *)(CAC_BASE + 0x180), &except_vec3_r4000, 0x100);
+		memcpy((void *)(ebase + 0x180), &except_vec3_r4000, 0x100);
 	else if (cpu_has_4kex)
-		memcpy((void *)(CAC_BASE + 0x180), &except_vec3_generic, 0x80);
+		memcpy((void *)(ebase + 0x180), &except_vec3_generic, 0x80);
 	else
-		memcpy((void *)(CAC_BASE + 0x080), &except_vec3_generic, 0x80);
+		memcpy((void *)(ebase + 0x080), &except_vec3_generic, 0x80);
 
 	signal_init();
 #ifdef CONFIG_MIPS32_COMPAT

arch/mips/kernel/unaligned.c

@@ -499,21 +499,9 @@ sigill:
 
 asmlinkage void do_ade(struct pt_regs *regs)
 {
-	extern int do_dsemulret(struct pt_regs *);
 	unsigned int __user *pc;
 	mm_segment_t seg;
 
-	/*
-	 * Address errors may be deliberately induced by the FPU emulator to
-	 * retake control of the CPU after executing the instruction in the
-	 * delay slot of an emulated branch.
-	 */
-	/* Terminate if exception was recognized as a delay slot return */
-	if (do_dsemulret(regs))
-		return;
-
-	/* Otherwise handle as normal */
-
 	/*
 	 * Did we catch a fault trying to load an instruction?
 	 * Or are we running in MIPS16 mode?

arch/mips/math-emu/cp1emu.c

@@ -48,7 +48,6 @@
 #include <asm/branch.h>
 
 #include "ieee754.h"
-#include "dsemul.h"
 
 /* Strap kernel emulator for full MIPS IV emulation */
 
@@ -346,9 +345,6 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
 			/* cop control register rd -> gpr[rt] */
 			u32 value;
 
-			if (ir == CP1UNDEF) {
-				return do_dsemulret(xcp);
-			}
 			if (MIPSInst_RD(ir) == FPCREG_CSR) {
 				value = ctx->fcr31;
 				value = (value & ~0x3) | mips_rm[value & 0x3];

arch/mips/math-emu/dsemul.c

@@ -18,7 +18,6 @@
 #include <asm/fpu_emulator.h>
 
 #include "ieee754.h"
-#include "dsemul.h"
 
 /* Strap kernel emulator for full MIPS IV emulation */
 
@@ -94,7 +93,7 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc)
 		return SIGBUS;
 
 	err = __put_user(ir, &fr->emul);
-	err |= __put_user((mips_instruction)BADINST, &fr->badinst);
+	err |= __put_user((mips_instruction)BREAK_MATH, &fr->badinst);
 	err |= __put_user((mips_instruction)BD_COOKIE, &fr->cookie);
 	err |= __put_user(cpc, &fr->epc);
 
@@ -130,13 +129,13 @@ int do_dsemulret(struct pt_regs *xcp)
 	/*
 	 * Do some sanity checking on the stackframe:
 	 *
-	 *  - Is the instruction pointed to by the EPC an BADINST?
+	 *  - Is the instruction pointed to by the EPC an BREAK_MATH?
 	 *  - Is the following memory word the BD_COOKIE?
 	 */
 	err = __get_user(insn, &fr->badinst);
 	err |= __get_user(cookie, &fr->cookie);
 
-	if (unlikely(err || (insn != BADINST) || (cookie != BD_COOKIE))) {
+	if (unlikely(err || (insn != BREAK_MATH) || (cookie != BD_COOKIE))) {
 		fpuemustats.errors++;
 		return 0;
 	}

arch/mips/math-emu/dsemul.h

@@ -1,17 +0,0 @@
-extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc);
-extern int do_dsemulret(struct pt_regs *xcp);
-
-/* Instruction which will always cause an address error */
-#define AdELOAD 0x8c000001	/* lw $0,1($0) */
-/* Instruction which will plainly cause a CP1 exception when FPU is disabled */
-#define CP1UNDEF 0x44400001    /* cfc1 $0,$0 undef  */
-
-/* Instruction inserted following the badinst to further tag the sequence */
-#define BD_COOKIE 0x0000bd36 /* tne $0,$0 with baggage */
-
-/* Setup which instruction to use for trampoline */
-#ifdef STANDALONE_EMULATOR
-#define BADINST CP1UNDEF
-#else
-#define BADINST AdELOAD
-#endif

arch/mips/txx9/rbtx4927/setup.c

@@ -49,6 +49,7 @@
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
+#include <linux/leds.h>
 #include <asm/io.h>
 #include <asm/reboot.h>
 #include <asm/txx9/generic.h>
@@ -210,10 +211,6 @@ static void __init rbtx4927_mem_setup(void)
 	/* TX4927-SIO DTR on (PIO[15]) */
 	gpio_request(15, "sio-dtr");
 	gpio_direction_output(15, 1);
-	gpio_request(0, "led");
-	gpio_direction_output(0, 1);
-	gpio_request(1, "led");
-	gpio_direction_output(1, 1);
 
 	tx4927_sio_init(0, 0);
 #ifdef CONFIG_SERIAL_TXX9_CONSOLE
@@ -315,6 +312,25 @@ static void __init rbtx4927_mtd_init(void)
 		tx4927_mtd_init(i);
 }
 
+static void __init rbtx4927_gpioled_init(void)
+{
+	static struct gpio_led leds[] = {
+		{ .name = "gpioled:green:0", .gpio = 0, .active_low = 1, },
+		{ .name = "gpioled:green:1", .gpio = 1, .active_low = 1, },
+	};
+	static struct gpio_led_platform_data pdata = {
+		.num_leds = ARRAY_SIZE(leds),
+		.leds = leds,
+	};
+	struct platform_device *pdev = platform_device_alloc("leds-gpio", 0);
+
+	if (!pdev)
+		return;
+	pdev->dev.platform_data = &pdata;
+	if (platform_device_add(pdev))
+		platform_device_put(pdev);
+}
+
 static void __init rbtx4927_device_init(void)
 {
 	toshiba_rbtx4927_rtc_init();
@@ -322,6 +338,7 @@ static void __init rbtx4927_device_init(void)
 	tx4927_wdt_init();
 	rbtx4927_mtd_init();
 	txx9_iocled_init(RBTX4927_LED_ADDR - IO_BASE, -1, 3, 1, "green", NULL);
+	rbtx4927_gpioled_init();
 }
 
 struct txx9_board_vec rbtx4927_vec __initdata = {

arch/mips/txx9/rbtx4939/setup.c

@@ -308,16 +308,22 @@ static void __init rbtx4939_device_init(void)
 #if defined(CONFIG_TC35815) || defined(CONFIG_TC35815_MODULE)
 	int i, j;
 	unsigned char ethaddr[2][6];
+	u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
+
 	for (i = 0; i < 2; i++) {
 		unsigned long area = CKSEG1 + 0x1fff0000 + (i * 0x10);
-		if (readb(rbtx4939_bdipsw_addr) & 8) {
+		if (bdipsw == 0)
+			memcpy(ethaddr[i], (void *)area, 6);
+		else {
 			u16 buf[3];
-			area -= 0x03000000;
+			if (bdipsw & 8)
+				area -= 0x03000000;
+			else
+				area -= 0x01000000;
 			for (j = 0; j < 3; j++)
 				buf[j] = le16_to_cpup((u16 *)(area + j * 2));
 			memcpy(ethaddr[i], buf, 6);
-		} else
-			memcpy(ethaddr[i], (void *)area, 6);
+		}
 	}
 	tx4939_ethaddr_init(ethaddr[0], ethaddr[1]);
 #endif

arch/powerpc/Kconfig

@@ -108,8 +108,7 @@ config ARCH_NO_VIRT_TO_BUS
 config PPC
 	bool
 	default y
-	select HAVE_DYNAMIC_FTRACE
-	select HAVE_FTRACE
+	select HAVE_FUNCTION_TRACER
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select HAVE_IDE
 	select HAVE_IOREMAP_PROT

arch/powerpc/Makefile

@@ -122,7 +122,7 @@ KBUILD_CFLAGS		+= -mcpu=powerpc
 endif
 
 # Work around a gcc code-gen bug with -fno-omit-frame-pointer.
-ifeq ($(CONFIG_FTRACE),y)
+ifeq ($(CONFIG_FUNCTION_TRACER),y)
 KBUILD_CFLAGS		+= -mno-sched-epilog
 endif
 

arch/powerpc/include/asm/ftrace.h

@@ -1,7 +1,7 @@
 #ifndef _ASM_POWERPC_FTRACE
 #define _ASM_POWERPC_FTRACE
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 #define MCOUNT_ADDR		((long)(_mcount))
 #define MCOUNT_INSN_SIZE	4 /* sizeof mcount call */
 

arch/powerpc/kernel/Makefile

@@ -12,7 +12,7 @@ CFLAGS_prom_init.o      += -fPIC
 CFLAGS_btext.o		+= -fPIC
 endif
 
-ifdef CONFIG_FTRACE
+ifdef CONFIG_FUNCTION_TRACER
 # Do not trace early boot code
 CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
 CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog

arch/powerpc/kernel/entry_32.S

@@ -1158,7 +1158,7 @@ machine_check_in_rtas:
 
 #endif /* CONFIG_PPC_RTAS */
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 #ifdef CONFIG_DYNAMIC_FTRACE
 _GLOBAL(mcount)
 _GLOBAL(_mcount)

arch/powerpc/kernel/entry_64.S

@@ -884,7 +884,7 @@ _GLOBAL(enter_prom)
 	mtlr    r0
         blr
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 #ifdef CONFIG_DYNAMIC_FTRACE
 _GLOBAL(mcount)
 _GLOBAL(_mcount)

arch/powerpc/kernel/ftrace.c

@@ -28,17 +28,17 @@ static unsigned int ftrace_nop = 0x60000000;
 #endif
 
 
-static unsigned int notrace ftrace_calc_offset(long ip, long addr)
+static unsigned int ftrace_calc_offset(long ip, long addr)
 {
 	return (int)(addr - ip);
 }
 
-notrace unsigned char *ftrace_nop_replace(void)
+unsigned char *ftrace_nop_replace(void)
 {
 	return (char *)&ftrace_nop;
 }
 
-notrace unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
+unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
 {
 	static unsigned int op;
 
@@ -68,7 +68,7 @@ notrace unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
 # define _ASM_PTR	" .long "
 #endif
 
-notrace int
+int
 ftrace_modify_code(unsigned long ip, unsigned char *old_code,
 		   unsigned char *new_code)
 {
@@ -113,7 +113,7 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code,
 	return faulted;
 }
 
-notrace int ftrace_update_ftrace_func(ftrace_func_t func)
+int ftrace_update_ftrace_func(ftrace_func_t func)
 {
 	unsigned long ip = (unsigned long)(&ftrace_call);
 	unsigned char old[MCOUNT_INSN_SIZE], *new;
@@ -126,23 +126,6 @@ notrace int ftrace_update_ftrace_func(ftrace_func_t func)
 	return ret;
 }
 
-notrace int ftrace_mcount_set(unsigned long *data)
-{
-	unsigned long ip = (long)(&mcount_call);
-	unsigned long *addr = data;
-	unsigned char old[MCOUNT_INSN_SIZE], *new;
-
-	/*
-	 * Replace the mcount stub with a pointer to the
-	 * ip recorder function.
-	 */
-	memcpy(old, &mcount_call, MCOUNT_INSN_SIZE);
-	new = ftrace_call_replace(ip, *addr);
-	*addr = ftrace_modify_code(ip, old, new);
-
-	return 0;
-}
-
 int __init ftrace_dyn_arch_init(void *data)
 {
 	/* This is running in kstop_machine */

arch/powerpc/kernel/ppc_ksyms.c

@@ -68,7 +68,7 @@ EXPORT_SYMBOL(single_step_exception);
 EXPORT_SYMBOL(sys_sigreturn);
 #endif
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 EXPORT_SYMBOL(_mcount);
 #endif