Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

CREDITS

@@ -882,13 +882,12 @@ S: Blacksburg, Virginia 24061
 S: USA
 
 N: Randy Dunlap
-E: rddunlap@osdl.org
+E: rdunlap@xenotime.net
 W: http://www.xenotime.net/linux/linux.html
 W: http://www.linux-usb.org
 D: Linux-USB subsystem, USB core/UHCI/printer/storage drivers
 D: x86 SMP, ACPI, bootflag hacking
-S: 12725 SW Millikan Way, Suite 400
-S: Beaverton, Oregon 97005
+S: (ask for current address)
 S: USA
 
 N: Bob Dunlop

Documentation/dvb/README.flexcop

+This README escorted the skystar2-driver rewriting procedure. It describes the
+state of the new flexcop-driver set and some internals are written down here
+too.
+
+This document hopefully describes things about the flexcop and its
+device-offsprings. Goal was to write an easy-to-write and easy-to-read set of
+drivers based on the skystar2.c and other information.
+
+Remark: flexcop-pci.c was a copy of skystar2.c, but every line has been
+touched and rewritten.
+
+History & News
+==============
+  2005-04-01 - correct USB ISOC transfers (thanks to Vadim Catana)
+
+
+
+
+General coding processing
+=========================
+
+We should proceed as follows (as long as no one complains):
+
+0) Think before start writing code!
+
+1) rewriting the skystar2.c with the help of the flexcop register descriptions
+and splitting up the files to a pci-bus-part and a flexcop-part.
+The new driver will be called b2c2-flexcop-pci.ko/b2c2-flexcop-usb.ko for the
+device-specific part and b2c2-flexcop.ko for the common flexcop-functions.
+
+2) Search for errors in the leftover of flexcop-pci.c (compare with pluto2.c
+and other pci drivers)
+
+3) make some beautification (see 'Improvements when rewriting (refactoring) is
+done')
+
+4) Testing the new driver and maybe substitute the skystar2.c with it, to reach
+a wider tester audience.
+
+5) creating an usb-bus-part using the already written flexcop code for the pci
+card.
+
+Idea: create a kernel-object for the flexcop and export all important
+functions. This option saves kernel-memory, but maybe a lot of functions have
+to be exported to kernel namespace.
+
+
+Current situation
+=================
+
+0) Done :)
+1) Done (some minor issues left)
+2) Done
+3) Not ready yet, more information is necessary
+4) next to be done (see the table below)
+5) USB driver is working (yes, there are some minor issues)
+
+What seems to be ready?
+-----------------------
+
+1) Rewriting
+1a) i2c is cut off from the flexcop-pci.c and seems to work
+1b) moved tuner and demod stuff from flexcop-pci.c to flexcop-tuner-fe.c
+1c) moved lnb and diseqc stuff from flexcop-pci.c to flexcop-tuner-fe.c
+1e) eeprom (reading MAC address)
+1d) sram (no dynamic sll size detection (commented out) (using default as JJ told me))
+1f) misc. register accesses for reading parameters (e.g. resetting, revision)
+1g) pid/mac filter (flexcop-hw-filter.c)
+1i) dvb-stuff initialization in flexcop.c (done)
+1h) dma stuff (now just using the size-irq, instead of all-together, to be done)
+1j) remove flexcop initialization from flexcop-pci.c completely (done)
+1l) use a well working dma IRQ method (done, see 'Known bugs and problems and TODO')
+1k) cleanup flexcop-files (remove unused EXPORT_SYMBOLs, make static from
+non-static where possible, moved code to proper places)
+
+2) Search for errors in the leftover of flexcop-pci.c (partially done)
+5a) add MAC address reading
+5c) feeding of ISOC data to the software demux (format of the isochronous data
+and speed optimization, no real error) (thanks to Vadim Catana)
+
+What to do in the near future?
+--------------------------------------
+(no special order here)
+
+5) USB driver
+5b) optimize isoc-transfer (submitting/killing isoc URBs when transfer is starting)
+
+Testing changes
+---------------
+
+O             = item is working
+P             = item is partially working
+X             = item is not working
+N             = item does not apply here
+<empty field> = item need to be examined
+
+       | PCI                               | USB
+item   | mt352 | nxt2002 | stv0299 | mt312 | mt352 | nxt2002 | stv0299 | mt312
+-------+-------+---------+---------+-------+-------+---------+---------+-------
+1a)    | O     |         |         |       | N     | N       | N       | N
+1b)    | O     |         |         |       |       |         | O       |
+1c)    | N     | N       |         |       | N     | N       | O       |
+1d)    |                 O                 |                 O
+1e)    |                 O                 |                 O
+1f)    |                                   P
+1g)    |                                   O
+1h)    |                 P                 |
+1i)    |                 O                 |                 N
+1j)    |                 O                 |                 N
+1l)    |                 O                 |                 N
+2)     |                 O                 |                 N
+5a)    |                 N                 |                 O
+5b)*   |                 N                 |
+5c)    |                 N                 |                 O
+
+* - not done yet
+
+Known bugs and problems and TODO
+--------------------------------
+
+1g/h/l) when pid filtering is enabled on the pci card
+
+DMA usage currently:
+  The DMA is splitted in 2 equal-sized subbuffers. The Flexcop writes to first
+  address and triggers an IRQ when it's full and starts writing to the second
+  address. When the second address is full, the IRQ is triggered again, and
+  the flexcop writes to first address again, and so on.
+  The buffersize of each address is currently 640*188 bytes.
+
+  Problem is, when using hw-pid-filtering and doing some low-bandwidth
+  operation (like scanning) the buffers won't be filled enough to trigger
+  the IRQ. That's why:
+
+  When PID filtering is activated, the timer IRQ is used. Every 1.97 ms the IRQ
+  is triggered.  Is the current write address of DMA1 different to the one
+  during the last IRQ, then the data is passed to the demuxer.
+
+  There is an additional DMA-IRQ-method: packet count IRQ. This isn't
+  implemented correctly yet.
+
+  The solution is to disable HW PID filtering, but I don't know how the DVB
+  API software demux behaves on slow systems with 45MBit/s TS.
+
+Solved bugs :)
+--------------
+1g) pid-filtering (somehow pid index 4 and 5 (EMM_PID and ECM_PID) aren't
+working)
+SOLUTION: also index 0 was affected, because net_translation is done for
+these indexes by default
+
+5b) isochronous transfer does only work in the first attempt (for the Sky2PC
+USB, Air2PC is working) SOLUTION: the flexcop was going asleep and never really
+woke up again (don't know if this need fixes, see
+flexcop-fe-tuner.c:flexcop_sleep)
+
+NEWS: when the driver is loaded and unloaded and loaded again (w/o doing
+anything in the while the driver is loaded the first time), no transfers take
+place anymore.
+
+Improvements when rewriting (refactoring) is done
+=================================================
+
+- split sleeping of the flexcop (misc_204.ACPI3_sig = 1;) from lnb_control
+  (enable sleeping for other demods than dvb-s)
+- add support for CableStar (stv0297 Microtune 203x/ALPS) (almost done, incompatibilities with the Nexus-CA)
+
+Debugging
+---------
+- add verbose debugging to skystar2.c (dump the reg_dw_data) and compare it
+  with this flexcop, this is important, because i2c is now using the
+  flexcop_ibi_value union from flexcop-reg.h (do you have a better idea for
+  that, please tell us so).
+
+Everything which is identical in the following table, can be put into a common
+flexcop-module.
+
+                  PCI                  USB
+-------------------------------------------------------------------------------
+Different:
+Register access:  accessing IO memory  USB control message
+I2C bus:          I2C bus of the FC    USB control message
+Data transfer:    DMA                  isochronous transfer
+EEPROM transfer:  through i2c bus      not clear yet
+
+Identical:
+Streaming:                 accessing registers
+PID Filtering:             accessing registers
+Sram destinations:         accessing registers
+Tuner/Demod:                     I2C bus
+DVB-stuff:            can be written for common use
+
+Acknowledgements (just for the rewriting part)
+================
+
+Bjarne Steinsbo thought a lot in the first place of the pci part for this code
+sharing idea.
+
+Andreas Oberritter for providing a recent PCI initialization template
+(pluto2.c).
+
+Boleslaw Ciesielski for pointing out a problem with firmware loader.
+
+Vadim Catana for correcting the USB transfer.
+
+comments, critics and ideas to linux-dvb@linuxtv.org.

Documentation/dvb/bt8xx.txt

@@ -17,74 +17,53 @@ Because of this, you need to enable
 "Device drivers" => "Multimedia devices"
   => "Video For Linux" => "BT848 Video For Linux"
 
+Furthermore you need to enable
+"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
+  => "DVB for Linux" "DVB Core Support" "Nebula/Pinnacle PCTV/TwinHan PCI Cards"
+
 2) Loading Modules
 ==================
 
 In general you need to load the bttv driver, which will handle the gpio and
-i2c communication for us. Next you need the common dvb-bt8xx device driver
-and one frontend driver.
-
-The bttv driver will HANG YOUR SYSTEM IF YOU DO NOT SPECIFY THE CORRECT 
-CARD ID!
-
-(If you don't get your card running and you suspect that the card id you're
-using is wrong, have a look at "bttv-cards.c" for a list of possible card
-ids.)
-
-Pay attention to failures when you load the frontend drivers
-(e.g. dmesg, /var/log/messages).
+i2c communication for us, plus the common dvb-bt8xx device driver.
+The frontends for Nebula (nxt6000), Pinnacle PCTV (cx24110) and
+TwinHan (dst) are loaded automatically by the dvb-bt8xx device driver.
 
 3a) Nebula / Pinnacle PCTV
 --------------------------
 
-   $ modprobe bttv i2c_hw=1 card=0x68
-   $ modprobe dvb-bt8xx
-   
-For Nebula cards use the "nxt6000" frontend driver:
-   $ modprobe nxt6000
+   $ modprobe bttv (normally bttv is being loaded automatically by kmod)
+   $ modprobe dvb-bt8xx (or just place dvb-bt8xx in /etc/modules for automatic loading)
 
-For Pinnacle PCTV cards use the "cx24110" frontend driver:
-   $ modprobe cx24110
 
-3b) TwinHan
------------
+3b) TwinHan and Clones
+--------------------------
 
    $ modprobe bttv i2c_hw=1 card=0x71
    $ modprobe dvb-bt8xx
    $ modprobe dst
 
-The value 0x71 will override the PCI type detection for dvb-bt8xx, which 
-is necessary for TwinHan cards.#
+The value 0x71 will override the PCI type detection for dvb-bt8xx,
+which  is necessary for TwinHan cards.
 
-If you're having an older card (blue color circuit) and card=0x71 locks your
-machine, try using 0x68, too. If that does not work, ask on the DVB mailing list.
+If you're having an older card (blue color circuit) and card=0x71 locks
+your machine, try using 0x68, too. If that does not work, ask on the
+mailing list.
 
-The DST module takes a couple of useful parameters, in case the
-dst drivers fails to detect your type of card correctly.
+The DST module takes a couple of useful parameters.
 
-dst_type takes values 0 (satellite), 1 (terrestial TV), 2 (cable).
+verbose takes values 0 to 5. These values control the verbosity level.
 
-dst_type_flags takes bit combined values:
-1 = new tuner type packets. You can use this if your card is detected
-    and you have debug and you continually see the tuner packets not
-    working (make sure not a basic problem like dish alignment etc.)
+debug takes values 0 and 1. You can either disable or enable debugging.
 
-2 = TS 204. If your card tunes OK, but the picture is terrible, seemingly
-    breaking up in one half continually, and crc fails a lot, then
-    this is worth a try (or trying to turn off)
+dst_addons takes values 0 and 0x20. A value of 0 means it is a FTA card.
+0x20 means it has a Conditional Access slot.
 
-4 = has symdiv. Some cards, mostly without new tuner packets, require
-    a symbol division algorithm. Doesn't apply to terrestial TV.
-
-You can also specify a value to have the autodetected values turned off
-(e.g. 0). The autodected values are determined bythe cards 'response
+The autodected values are determined bythe cards 'response
 string' which you can see in your logs e.g.
 
-dst_check_ci: recognize DST-MOT
-
-or 
+dst_get_device_id: Recognise [DSTMCI]
 
-dst_check_ci: unable to recognize DSTXCI or STXCI
 
 --
-Authors: Richard Walker, Jamie Honan, Michael Hunold
+Authors: Richard Walker, Jamie Honan, Michael Hunold, Manu Abraham

Documentation/dvb/ci.txt

+* For the user
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+NOTE: This document describes the usage of the high level CI API as
+in accordance to the Linux DVB API. This is a not a documentation for the,
+existing low level CI API.
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To utilize the High Level CI capabilities,
+
+(1*) This point is valid only for the Twinhan/clones
+  For the Twinhan/Twinhan clones, the dst_ca module handles the CI
+  hardware handling.This module is loaded automatically if a CI
+  (Common Interface, that holds the CAM (Conditional Access Module)
+  is detected.
+
+(2) one requires a userspace application, ca_zap. This small userland
+  application is in charge of sending the descrambling related information
+  to the CAM.
+
+This application requires the following to function properly as of now.
+
+	(a) Tune to a valid channel, with szap.
+	  eg: $ szap -c channels.conf -r "TMC" -x
+
+	(b) a channels.conf containing a valid PMT PID
+
+	  eg: TMC:11996:h:0:27500:278:512:650:321
+
+	  here 278 is a valid PMT PID. the rest of the values are the
+	  same ones that szap uses.
+
+	(c) after running a szap, you have to run ca_zap, for the
+	  descrambler to function,
+
+	  eg: $ ca_zap patched_channels.conf "TMC"
+
+	  The patched means a patch to apply to scan, such that scan can
+	  generate a channels.conf_with pmt, which has this PMT PID info
+	  (NOTE: szap cannot use this channels.conf with the PMT_PID)
+
+
+	(d) Hopeflly Enjoy your favourite subscribed channel as you do with
+	  a FTA card.
+
+(3) Currently ca_zap, and dst_test, both are meant for demonstration
+  purposes only, they can become full fledged applications if necessary.
+
+
+* Cards that fall in this category
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+At present the cards that fall in this category are the Twinhan and it's
+clones, these cards are available as VVMER, Tomato, Hercules, Orange and
+so on.
+
+* CI modules that are supported
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The CI module support is largely dependant upon the firmware on the cards
+Some cards do support almost all of the available CI modules. There is
+nothing much that can be done in order to make additional CI modules
+working with these cards.
+
+Modules that have been tested by this driver at present are
+
+(1) Irdeto 1 and 2 from SCM
+(2) Viaccess from SCM
+(3) Dragoncam
+
+* The High level CI API
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* For the programmer
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+With the High Level CI approach any new card with almost any random
+architecture can be implemented with this style, the definitions
+insidethe switch statement can be easily adapted for any card, thereby
+eliminating the need for any additional ioctls.
+
+The disadvantage is that the driver/hardware has to manage the rest. For
+the application programmer it would be as simple as sending/receiving an
+array to/from the CI ioctls as defined in the Linux DVB API. No changes
+have been made in the API to accomodate this feature.
+
+
+* Why the need for another CI interface ?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+This is one of the most commonly asked question. Well a nice question.
+Strictly speaking this is not a new interface.
+
+The CI interface is defined in the DVB API in ca.h as
+
+typedef struct ca_slot_info {
+	int num;               /* slot number */
+
+	int type;              /* CA interface this slot supports */
+#define CA_CI            1     /* CI high level interface */
+#define CA_CI_LINK       2     /* CI link layer level interface */
+#define CA_CI_PHYS       4     /* CI physical layer level interface */
+#define CA_DESCR         8     /* built-in descrambler */
+#define CA_SC          128     /* simple smart card interface */
+
+	unsigned int flags;
+#define CA_CI_MODULE_PRESENT 1 /* module (or card) inserted */
+#define CA_CI_MODULE_READY   2
+} ca_slot_info_t;
+
+
+
+This CI interface follows the CI high level interface, which is not
+implemented by most applications. Hence this area is revisited.
+
+This CI interface is quite different in the case that it tries to
+accomodate all other CI based devices, that fall into the other categories
+
+This means that this CI interface handles the EN50221 style tags in the
+Application layer only and no session management is taken care of by the
+application. The driver/hardware will take care of all that.
+
+This interface is purely an EN50221 interface exchanging APDU's. This
+means that no session management, link layer or a transport layer do
+exist in this case in the application to driver communication. It is
+as simple as that. The driver/hardware has to take care of that.
+
+
+With this High Level CI interface, the interface can be defined with the
+regular ioctls.
+
+All these ioctls are also valid for the High level CI interface
+
+#define CA_RESET          _IO('o', 128)
+#define CA_GET_CAP        _IOR('o', 129, ca_caps_t)
+#define CA_GET_SLOT_INFO  _IOR('o', 130, ca_slot_info_t)
+#define CA_GET_DESCR_INFO _IOR('o', 131, ca_descr_info_t)
+#define CA_GET_MSG        _IOR('o', 132, ca_msg_t)
+#define CA_SEND_MSG       _IOW('o', 133, ca_msg_t)
+#define CA_SET_DESCR      _IOW('o', 134, ca_descr_t)
+#define CA_SET_PID        _IOW('o', 135, ca_pid_t)
+
+
+On querying the device, the device yields information thus
+
+CA_GET_SLOT_INFO
+----------------------------
+Command = [info]
+APP: Number=[1]
+APP: Type=[1]
+APP: flags=[1]
+APP: CI High level interface
+APP: CA/CI Module Present
+
+CA_GET_CAP
+----------------------------
+Command = [caps]
+APP: Slots=[1]
+APP: Type=[1]
+APP: Descrambler keys=[16]
+APP: Type=[1]
+
+CA_SEND_MSG
+----------------------------
+Descriptors(Program Level)=[ 09 06 06 04 05 50 ff f1]
+Found CA descriptor @ program level
+
+(20) ES type=[2] ES pid=[201]  ES length =[0 (0x0)]
+(25) ES type=[4] ES pid=[301]  ES length =[0 (0x0)]
+ca_message length is 25 (0x19) bytes
+EN50221 CA MSG=[ 9f 80 32 19 03 01 2d d1 f0 08 01 09 06 06 04 05 50 ff f1 02 e0 c9 00 00 04 e1 2d 00 00]
+
+
+Not all ioctl's are implemented in the driver from the API, the other
+features of the hardware that cannot be implemented by the API are achieved
+using the CA_GET_MSG and CA_SEND_MSG ioctls. An EN50221 style wrapper is
+used to exchange the data to maintain compatibility with other hardware.
+
+
+/* a message to/from a CI-CAM */
+typedef struct ca_msg {
+	unsigned int index;
+	unsigned int type;
+	unsigned int length;
+	unsigned char msg[256];
+} ca_msg_t;
+
+
+The flow of data can be described thus,
+
+
+
+
+
+	App (User)
+	-----
+	parse
+	  |
+	  |
+	  v
+	en50221 APDU (package)
+   --------------------------------------
+   |	  |				| High Level CI driver
+   |	  |				|
+   |	  v				|
+   |	en50221 APDU (unpackage)	|
+   |	  |				|
+   |	  |				|
+   |	  v				|
+   |	sanity checks			|
+   |	  |				|
+   |	  |				|
+   |	  v				|
+   |	do (H/W dep)			|
+   --------------------------------------
+	  |    Hardware
+	  |
+	  v
+
+
+
+
+The High Level CI interface uses the EN50221 DVB standard, following a
+standard ensures futureproofness.

Documentation/dvb/get_dvb_firmware

@@ -107,7 +107,7 @@ sub tda10045 {
 sub tda10046 {
     my $sourcefile = "tt_budget_217g.zip";
     my $url = "http://www.technotrend.de/new/217g/$sourcefile";
-    my $hash = "a25b579e37109af60f4a36c37893957c";
+    my $hash = "6a7e1e2f2644b162ff0502367553c72d";
     my $outfile = "dvb-fe-tda10046.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 
@@ -115,7 +115,7 @@ sub tda10046 {
 
     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
-    extract("$tmpdir/software/OEM/PCI/App/ttlcdacc.dll", 0x3f731, 24479, "$tmpdir/fwtmp");
+    extract("$tmpdir/software/OEM/PCI/App/ttlcdacc.dll", 0x3f731, 24478, "$tmpdir/fwtmp");
     verify("$tmpdir/fwtmp", $hash);
     copy("$tmpdir/fwtmp", $outfile);
 

Documentation/feature-removal-schedule.txt

@@ -63,3 +63,23 @@ Why:	Outside of Linux, the only implementations of anything even
 	people, who might be using implementations that I am not aware
 	of, to adjust to this upcoming change.
 Who:	Paul E. McKenney <paulmck@us.ibm.com>
+
+---------------------------
+
+What:	IEEE1394 Audio and Music Data Transmission Protocol driver,
+	Connection Management Procedures driver
+When:	November 2005
+Files:	drivers/ieee1394/{amdtp,cmp}*
+Why:	These are incomplete, have never worked, and are better implemented
+	in userland via raw1394 (see http://freebob.sourceforge.net/ for
+	example.)
+Who:	Jody McIntyre <scjody@steamballoon.com>
+
+---------------------------
+
+What:	raw1394: requests of type RAW1394_REQ_ISO_SEND, RAW1394_REQ_ISO_LISTEN
+When:	November 2005
+Why:	Deprecated in favour of the new ioctl-based rawiso interface, which is
+	more efficient.  You should really be using libraw1394 for raw1394
+	access anyway.
+Who:	Jody McIntyre <scjody@steamballoon.com>

Documentation/filesystems/sysfs-pci.txt

@@ -7,7 +7,6 @@ that support it.  For example, a given bus might look like this:
      |-- 0000:17:00.0
      |   |-- class
      |   |-- config
-     |   |-- detach_state
      |   |-- device
      |   |-- irq
      |   |-- local_cpus
@@ -19,7 +18,7 @@ that support it.  For example, a given bus might look like this:
      |   |-- subsystem_device
      |   |-- subsystem_vendor
      |   `-- vendor
-     `-- detach_state
+     `-- ...
 
 The topmost element describes the PCI domain and bus number.  In this case,
 the domain number is 0000 and the bus number is 17 (both values are in hex).
@@ -31,7 +30,6 @@ files, each with their own function.
        ----		   --------
        class		   PCI class (ascii, ro)
        config		   PCI config space (binary, rw)
-       detach_state	   connection status (bool, rw)
        device		   PCI device (ascii, ro)
        irq		   IRQ number (ascii, ro)
        local_cpus	   nearby CPU mask (cpumask, ro)
@@ -85,4 +83,4 @@ useful return codes should be provided.
 
 Legacy resources are protected by the HAVE_PCI_LEGACY define.  Platforms
 wishing to support legacy functionality should define it and provide
-pci_legacy_read, pci_legacy_write and pci_mmap_legacy_page_range functions.
+pci_legacy_read, pci_legacy_write and pci_mmap_legacy_page_range functions.
\ No newline at end of file

Documentation/power/devices.txt

@@ -207,27 +207,6 @@ SYSTEM_SHUTDOWN, I do not understand this one too much. probably event
 #READY_AFTER_RESUME
 #
 
-Driver Detach Power Management
-
-The kernel now supports the ability to place a device in a low-power
-state when it is detached from its driver, which happens when its
-module is removed. 
-
-Each device contains a 'detach_state' file in its sysfs directory
-which can be used to control this state. Reading from this file
-displays what the current detach state is set to. This is 0 (On) by
-default. A user may write a positive integer value to this file in the
-range of 1-4 inclusive. 
-
-A value of 1-3 will indicate the device should be placed in that
-low-power state, which will cause ->suspend() to be called for that
-device. A value of 4 indicates that the device should be shutdown, so
-->shutdown() will be called for that device. 
-
-The driver is responsible for reinitializing the device when the
-module is re-inserted during it's ->probe() (or equivalent) method. 
-The driver core will not call any extra functions when binding the
-device to the driver. 
 
 pm_message_t meaning
 

Documentation/powerpc/hvcs.txt

@@ -347,8 +347,8 @@ address that is created by firmware.  An example vty-server sysfs entry
 looks like the following:
 
 	Pow5:/sys/bus/vio/drivers/hvcs/30000004 # ls
-	.   current_vty   devspec  name          partner_vtys
-	..  detach_state  index    partner_clcs  vterm_state
+	.   current_vty   devspec       name          partner_vtys
+	..  index         partner_clcs  vterm_state
 
 Each entry is provided, by default with a "name" attribute.  Reading the
 "name" attribute will reveal the device type as shown in the following

Makefile

@@ -530,7 +530,7 @@ endif
 include $(srctree)/arch/$(ARCH)/Makefile
 
 # arch Makefile may override CC so keep this after arch Makefile is included
-NOSTDINC_FLAGS := -nostdinc -isystem $(shell $(CC) -print-file-name=include)
+NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 
 # warn about C99 declaration after statement

arch/alpha/kernel/osf_sys.c

@@ -1150,16 +1150,13 @@ osf_usleep_thread(struct timeval32 __user *sleep, struct timeval32 __user *remai
 	if (get_tv32(&tmp, sleep))
 		goto fault;
 
-	ticks = tmp.tv_usec;
-	ticks = (ticks + (1000000 / HZ) - 1) / (1000000 / HZ);
-	ticks += tmp.tv_sec * HZ;
+	ticks = timeval_to_jiffies(&tmp);
 
 	current->state = TASK_INTERRUPTIBLE;
 	ticks = schedule_timeout(ticks);
 
 	if (remain) {
-		tmp.tv_sec = ticks / HZ;
-		tmp.tv_usec = ticks % HZ;
+		jiffies_to_timeval(ticks, &tmp);
 		if (put_tv32(remain, &tmp))
 			goto fault;
 	}

arch/i386/kernel/cpu/amd.c

@@ -24,9 +24,6 @@ __asm__(".align 4\nvide: ret");
 
 static void __init init_amd(struct cpuinfo_x86 *c)
 {
-#ifdef CONFIG_X86_SMP
-	int cpu = c == &boot_cpu_data ? 0 : c - cpu_data;
-#endif
 	u32 l, h;
 	int mbytes = num_physpages >> (20-PAGE_SHIFT);
 	int r;
@@ -205,7 +202,9 @@ static void __init init_amd(struct cpuinfo_x86 *c)
 	 * of two.
 	 */
 	if (c->x86_num_cores > 1) {
-		cpu_core_id[cpu] = cpu >> hweight32(c->x86_num_cores - 1);
+		int cpu = smp_processor_id();
+		/* Fix up the APIC ID following AMD specifications. */
+		cpu_core_id[cpu] >>= hweight32(c->x86_num_cores - 1);
 		printk(KERN_INFO "CPU %d(%d) -> Core %d\n",
 		       cpu, c->x86_num_cores, cpu_core_id[cpu]);
 	}

arch/i386/kernel/cpu/common.c

@@ -243,6 +243,13 @@ static void __init early_cpu_detect(void)
 	}
 
 	early_intel_workaround(c);
+
+#ifdef CONFIG_SMP
+#ifdef CONFIG_X86_HT
+	phys_proc_id[smp_processor_id()] =
+#endif
+	cpu_core_id[smp_processor_id()] = (cpuid_ebx(1) >> 24) & 0xff;
+#endif
 }
 
 void __init generic_identify(struct cpuinfo_x86 * c)

arch/i386/pci/fixup.c

@@ -253,7 +253,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2, pci
 #define MAX_PCIEROOT	6
 static int quirk_aspm_offset[MAX_PCIEROOT << 3];
 
-#define GET_INDEX(a, b) (((a - PCI_DEVICE_ID_INTEL_MCH_PA) << 3) + b)
+#define GET_INDEX(a, b) ((((a) - PCI_DEVICE_ID_INTEL_MCH_PA) << 3) + ((b) & 7))
 
 static int quirk_pcie_aspm_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
 {

arch/ia64/ia32/ia32_ioctl.c

@@ -13,7 +13,6 @@
   
 #define	INCLUDES
 #include "compat_ioctl.c"
-#include <asm/ioctl32.h>
 
 #define IOCTL_NR(a)	((a) & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT))
 

arch/mips/vr41xx/common/pmu.c

 /*
  *  pmu.c, Power Management Unit routines for NEC VR4100 series.
  *
- *  Copyright (C) 2003-2004  Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
+ *  Copyright (C) 2003-2005  Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -17,7 +17,9 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+#include <linux/errno.h>
 #include <linux/init.h>
+#include <linux/ioport.h>
 #include <linux/kernel.h>
 #include <linux/smp.h>
 #include <linux/types.h>
@@ -27,20 +29,31 @@
 #include <asm/reboot.h>
 #include <asm/system.h>
 
-#define PMUCNT2REG	KSEG1ADDR(0x0f0000c6)
+#define PMU_TYPE1_BASE	0x0b0000a0UL
+#define PMU_TYPE1_SIZE	0x0eUL
+
+#define PMU_TYPE2_BASE	0x0f0000c0UL
+#define PMU_TYPE2_SIZE	0x10UL
+
+#define PMUCNT2REG	0x06
  #define SOFTRST	0x0010
 
+static void __iomem *pmu_base;
+
+#define pmu_read(offset)		readw(pmu_base + (offset))
+#define pmu_write(offset, value)	writew((value), pmu_base + (offset))
+
 static inline void software_reset(void)
 {
-	uint16_t val;
+	uint16_t pmucnt2;
 
 	switch (current_cpu_data.cputype) {
 	case CPU_VR4122:
 	case CPU_VR4131:
 	case CPU_VR4133:
-		val = readw(PMUCNT2REG);
-		val |= SOFTRST;
-		writew(val, PMUCNT2REG);
+		pmucnt2 = pmu_read(PMUCNT2REG);
+		pmucnt2 |= SOFTRST;
+		pmu_write(PMUCNT2REG, pmucnt2);
 		break;
 	default:
 		break;
@@ -71,6 +84,34 @@ static void vr41xx_power_off(void)
 
 static int __init vr41xx_pmu_init(void)
 {
+	unsigned long start, size;
+
+	switch (current_cpu_data.cputype) {
+	case CPU_VR4111:
+	case CPU_VR4121:
+		start = PMU_TYPE1_BASE;
+		size = PMU_TYPE1_SIZE;
+		break;
+	case CPU_VR4122:
+	case CPU_VR4131:
+	case CPU_VR4133:
+		start = PMU_TYPE2_BASE;
+		size = PMU_TYPE2_SIZE;
+		break;
+	default:
+		printk("Unexpected CPU of NEC VR4100 series\n");
+		return -ENODEV;
+	}
+
+	if (request_mem_region(start, size, "PMU") == NULL)
+		return -EBUSY;
+
+	pmu_base = ioremap(start, size);
+	if (pmu_base == NULL) {
+		release_mem_region(start, size);
+		return -EBUSY;
+	}
+
 	_machine_restart = vr41xx_restart;
 	_machine_halt = vr41xx_halt;
 	_machine_power_off = vr41xx_power_off;
@@ -78,4 +119,4 @@ static int __init vr41xx_pmu_init(void)
 	return 0;
 }
 
-early_initcall(vr41xx_pmu_init);
+core_initcall(vr41xx_pmu_init);

arch/ppc/kernel/setup.c

@@ -753,6 +753,8 @@ void __init setup_arch(char **cmdline_p)
 	strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
 	*cmdline_p = cmd_line;
 
+	parse_early_param();
+
 	/* set up the bootmem stuff with available memory */
 	do_init_bootmem();
 	if ( ppc_md.progress ) ppc_md.progress("setup_arch: bootmem", 0x3eab);

arch/um/kernel/irq_user.c

@@ -236,9 +236,15 @@ static void free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg)
 				       (*prev)->fd, pollfds[i].fd);
 				goto out;
 			}
-			memcpy(&pollfds[i], &pollfds[i + 1],
-			       (pollfds_num - i - 1) * sizeof(pollfds[0]));
+
 			pollfds_num--;
+
+			/* This moves the *whole* array after pollfds[i] (though
+			 * it doesn't spot as such)! */
+
+			memmove(&pollfds[i], &pollfds[i + 1],
+			       (pollfds_num - i) * sizeof(pollfds[0]));
+
 			if(last_irq_ptr == &old_fd->next) 
 				last_irq_ptr = prev;
 			*prev = (*prev)->next;

arch/x86_64/Kconfig

@@ -303,6 +303,20 @@ config HPET_TIMER
 	  as it is off-chip.  You can find the HPET spec at
 	  <http://www.intel.com/labs/platcomp/hpet/hpetspec.htm>.
 
+config X86_PM_TIMER
+	bool "PM timer"
+	default y
+	help
+	  Support the ACPI PM timer for time keeping. This is slow,
+	  but is useful on some chipsets without HPET on systems with more
+	  than one CPU. On a single processor or single socket multi core
+	  system it is normally not required.
+	  When the PM timer is active 64bit vsyscalls are disabled
+	  and should not be enabled (/proc/sys/kernel/vsyscall64 should
+	  not be changed).
+	  The kernel selects the PM timer only as a last resort, so it is
+	  useful to enable just in case.
+
 config HPET_EMULATE_RTC
 	bool "Provide RTC interrupt"
 	depends on HPET_TIMER && RTC=y

arch/x86_64/defconfig

 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.11-bk7
-# Sat Mar 12 23:43:44 2005
+# Linux kernel version: 2.6.12-rc4
+# Fri May 13 06:39:11 2005
 #
 CONFIG_X86_64=y
 CONFIG_64BIT=y
@@ -11,8 +11,6 @@ CONFIG_RWSEM_GENERIC_SPINLOCK=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_X86_CMPXCHG=y
 CONFIG_EARLY_PRINTK=y
-CONFIG_HPET_TIMER=y
-CONFIG_HPET_EMULATE_RTC=y
 CONFIG_GENERIC_ISA_DMA=y
 CONFIG_GENERIC_IOMAP=y
 
@@ -22,6 +20,7 @@ CONFIG_GENERIC_IOMAP=y
 CONFIG_EXPERIMENTAL=y
 CONFIG_CLEAN_COMPILE=y
 CONFIG_LOCK_KERNEL=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
 
 #
 # General setup
@@ -33,7 +32,6 @@ CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 CONFIG_SYSCTL=y
 # CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=18
 # CONFIG_HOTPLUG is not set
 CONFIG_KOBJECT_UEVENT=y
 CONFIG_IKCONFIG=y
@@ -43,10 +41,11 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_KALLSYMS=y
 CONFIG_KALLSYMS_ALL=y
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
 CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
 CONFIG_EPOLL=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_SHMEM=y
 CONFIG_CC_ALIGN_FUNCTIONS=0
 CONFIG_CC_ALIGN_LABELS=0
@@ -93,6 +92,9 @@ CONFIG_DISCONTIGMEM=y
 CONFIG_NUMA=y
 CONFIG_HAVE_DEC_LOCK=y
 CONFIG_NR_CPUS=8
+CONFIG_HPET_TIMER=y
+CONFIG_X86_PM_TIMER=y
+CONFIG_HPET_EMULATE_RTC=y
 CONFIG_GART_IOMMU=y
 CONFIG_SWIOTLB=y
 CONFIG_X86_MCE=y
@@ -100,6 +102,7 @@ CONFIG_X86_MCE_INTEL=y
 CONFIG_SECCOMP=y
 CONFIG_GENERIC_HARDIRQS=y
 CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_ISA_DMA_API=y
 
 #
 # Power management options
@@ -129,7 +132,7 @@ CONFIG_ACPI_NUMA=y
 # CONFIG_ACPI_IBM is not set
 CONFIG_ACPI_TOSHIBA=y
 CONFIG_ACPI_BLACKLIST_YEAR=2001
-CONFIG_ACPI_DEBUG=y
+# CONFIG_ACPI_DEBUG is not set
 CONFIG_ACPI_BUS=y
 CONFIG_ACPI_EC=y
 CONFIG_ACPI_POWER=y
@@ -141,6 +144,7 @@ CONFIG_ACPI_SYSTEM=y
 # CPU Frequency scaling
 #
 CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_TABLE=y
 # CONFIG_CPU_FREQ_DEBUG is not set
 CONFIG_CPU_FREQ_STAT=y
 # CONFIG_CPU_FREQ_STAT_DETAILS is not set
@@ -150,7 +154,6 @@ CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
 # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
 CONFIG_CPU_FREQ_GOV_USERSPACE=y
 CONFIG_CPU_FREQ_GOV_ONDEMAND=y
-CONFIG_CPU_FREQ_TABLE=y
 
 #
 # CPUFreq processor drivers
@@ -164,6 +167,7 @@ CONFIG_X86_ACPI_CPUFREQ=y
 # shared options
 #
 CONFIG_X86_ACPI_CPUFREQ_PROC_INTF=y
+# CONFIG_X86_SPEEDSTEP_LIB is not set
 
 #
 # Bus options (PCI etc.)
@@ -172,19 +176,17 @@ CONFIG_PCI=y
 CONFIG_PCI_DIRECT=y
 CONFIG_PCI_MMCONFIG=y
 CONFIG_UNORDERED_IO=y
+# CONFIG_PCIEPORTBUS is not set
 CONFIG_PCI_MSI=y
 # CONFIG_PCI_LEGACY_PROC is not set
 # CONFIG_PCI_NAMES is not set
+# CONFIG_PCI_DEBUG is not set
 
 #
 # PCCARD (PCMCIA/CardBus) support
 #
 # CONFIG_PCCARD is not set
 
-#
-# PC-card bridges
-#
-
 #
 # PCI Hotplug Support
 #
@@ -254,7 +256,7 @@ CONFIG_LBD=y
 # IO Schedulers
 #
 CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
+# CONFIG_IOSCHED_AS is not set
 CONFIG_IOSCHED_DEADLINE=y
 CONFIG_IOSCHED_CFQ=y
 # CONFIG_ATA_OVER_ETH is not set
@@ -308,7 +310,8 @@ CONFIG_BLK_DEV_AMD74XX=y
 CONFIG_BLK_DEV_PIIX=y
 # CONFIG_BLK_DEV_NS87415 is not set
 # CONFIG_BLK_DEV_PDC202XX_OLD is not set
-# CONFIG_BLK_DEV_PDC202XX_NEW is not set
+CONFIG_BLK_DEV_PDC202XX_NEW=y
+# CONFIG_PDC202XX_FORCE is not set
 # CONFIG_BLK_DEV_SVWKS is not set
 # CONFIG_BLK_DEV_SIIMAGE is not set
 # CONFIG_BLK_DEV_SIS5513 is not set
@@ -353,7 +356,7 @@ CONFIG_BLK_DEV_SD=y
 #
 # SCSI low-level drivers
 #
-CONFIG_BLK_DEV_3W_XXXX_RAID=y
+# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
 # CONFIG_SCSI_3W_9XXX is not set
 # CONFIG_SCSI_ACARD is not set
 # CONFIG_SCSI_AACRAID is not set
@@ -384,7 +387,6 @@ CONFIG_SCSI_SATA_VIA=y
 # CONFIG_SCSI_BUSLOGIC is not set
 # CONFIG_SCSI_DMX3191D is not set
 # CONFIG_SCSI_EATA is not set
-# CONFIG_SCSI_EATA_PIO is not set
 # CONFIG_SCSI_FUTURE_DOMAIN is not set
 # CONFIG_SCSI_GDTH is not set
 # CONFIG_SCSI_IPS is not set
@@ -392,7 +394,6 @@ CONFIG_SCSI_SATA_VIA=y
 # CONFIG_SCSI_INIA100 is not set
 # CONFIG_SCSI_SYM53C8XX_2 is not set
 # CONFIG_SCSI_IPR is not set
-# CONFIG_SCSI_QLOGIC_ISP is not set
 # CONFIG_SCSI_QLOGIC_FC is not set
 # CONFIG_SCSI_QLOGIC_1280 is not set
 CONFIG_SCSI_QLA2XXX=y
@@ -401,6 +402,7 @@ CONFIG_SCSI_QLA2XXX=y
 # CONFIG_SCSI_QLA2300 is not set
 # CONFIG_SCSI_QLA2322 is not set
 # CONFIG_SCSI_QLA6312 is not set
+# CONFIG_SCSI_LPFC is not set
 # CONFIG_SCSI_DC395x is not set
 # CONFIG_SCSI_DC390T is not set
 # CONFIG_SCSI_DEBUG is not set
@@ -437,7 +439,6 @@ CONFIG_NET=y
 #
 CONFIG_PACKET=y
 # CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
 CONFIG_UNIX=y
 # CONFIG_NET_KEY is not set
 CONFIG_INET=y
@@ -502,7 +503,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_DUMMY is not set
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
-# CONFIG_TUN is not set
+CONFIG_TUN=y
 
 #
 # ARCnet devices
@@ -525,8 +526,7 @@ CONFIG_MII=y
 # CONFIG_HP100 is not set
 CONFIG_NET_PCI=y
 # CONFIG_PCNET32 is not set
-CONFIG_AMD8111_ETH=y
-# CONFIG_AMD8111E_NAPI is not set
+# CONFIG_AMD8111_ETH is not set
 # CONFIG_ADAPTEC_STARFIRE is not set
 # CONFIG_B44 is not set
 CONFIG_FORCEDETH=y
@@ -536,7 +536,7 @@ CONFIG_FORCEDETH=y
 # CONFIG_FEALNX is not set
 # CONFIG_NATSEMI is not set
 # CONFIG_NE2K_PCI is not set
-CONFIG_8139CP=m
+CONFIG_8139CP=y
 CONFIG_8139TOO=y
 # CONFIG_8139TOO_PIO is not set
 # CONFIG_8139TOO_TUNE_TWISTER is not set
@@ -671,6 +671,7 @@ CONFIG_SERIAL_8250_NR_UARTS=4
 #
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
@@ -696,6 +697,7 @@ CONFIG_RTC=y
 #
 CONFIG_AGP=y
 CONFIG_AGP_AMD64=y
+CONFIG_AGP_INTEL=y
 # CONFIG_DRM is not set
 # CONFIG_MWAVE is not set
 CONFIG_RAW_DRIVER=y
@@ -703,7 +705,7 @@ CONFIG_HPET=y
 # CONFIG_HPET_RTC_IRQ is not set
 CONFIG_HPET_MMAP=y
 CONFIG_MAX_RAW_DEVS=256
-CONFIG_HANGCHECK_TIMER=y
+# CONFIG_HANGCHECK_TIMER is not set
 
 #
 # TPM devices
@@ -786,6 +788,8 @@ CONFIG_SOUND_ICH=y
 #
 # USB support
 #
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
 CONFIG_USB=y
 # CONFIG_USB_DEBUG is not set
 
@@ -797,8 +801,6 @@ CONFIG_USB_DEVICEFS=y
 # CONFIG_USB_DYNAMIC_MINORS is not set
 # CONFIG_USB_SUSPEND is not set
 # CONFIG_USB_OTG is not set
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
 
 #
 # USB Host Controller Drivers
@@ -826,7 +828,6 @@ CONFIG_USB_PRINTER=y
 #
 CONFIG_USB_STORAGE=y
 # CONFIG_USB_STORAGE_DEBUG is not set
-# CONFIG_USB_STORAGE_RW_DETECT is not set
 # CONFIG_USB_STORAGE_DATAFAB is not set
 # CONFIG_USB_STORAGE_FREECOM is not set
 # CONFIG_USB_STORAGE_ISD200 is not set
@@ -965,7 +966,7 @@ CONFIG_AUTOFS_FS=y
 # CD-ROM/DVD Filesystems
 #
 CONFIG_ISO9660_FS=y
-# CONFIG_JOLIET is not set
+CONFIG_JOLIET=y
 # CONFIG_ZISOFS is not set
 # CONFIG_UDF_FS is not set
 
@@ -1092,9 +1093,10 @@ CONFIG_OPROFILE=y
 #
 # Kernel hacking
 #
+# CONFIG_PRINTK_TIME is not set
 CONFIG_DEBUG_KERNEL=y
 CONFIG_MAGIC_SYSRQ=y
-# CONFIG_PRINTK_TIME is not set
+CONFIG_LOG_BUF_SHIFT=18
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_SPINLOCK is not set

arch/x86_64/kernel/Makefile

@@ -28,6 +28,7 @@ obj-$(CONFIG_GART_IOMMU)	+= pci-gart.o aperture.o
 obj-$(CONFIG_DUMMY_IOMMU)	+= pci-nommu.o pci-dma.o
 obj-$(CONFIG_SWIOTLB)		+= swiotlb.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
+obj-$(CONFIG_X86_PM_TIMER)	+= pmtimer.o
 
 obj-$(CONFIG_MODULES)		+= module.o
 

arch/x86_64/kernel/apic.c

@@ -33,6 +33,7 @@
 #include <asm/mpspec.h>
 #include <asm/pgalloc.h>
 #include <asm/mach_apic.h>
+#include <asm/nmi.h>
 
 int apic_verbosity;
 
@@ -925,7 +926,7 @@ __init int oem_force_hpet_timer(void)
 	unsigned id;
 	DECLARE_BITMAP(clustermap, NUM_APIC_CLUSTERS);
 
-	bitmap_empty(clustermap, NUM_APIC_CLUSTERS);
+	bitmap_zero(clustermap, NUM_APIC_CLUSTERS);
 
 	for (i = 0; i < NR_CPUS; i++) {
 		id = bios_cpu_apicid[i];
@@ -1056,7 +1057,7 @@ int __init APIC_init_uniprocessor (void)
 		nr_ioapics = 0;
 #endif
 	setup_boot_APIC_clock();
-
+	check_nmi_watchdog();
 	return 0;
 }
 

arch/x86_64/kernel/entry.S

@@ -220,13 +220,18 @@ sysret_careful:
 	jmp sysret_check
 
 	/* Handle a signal */ 
-	/* edx:	work flags (arg3) */
 sysret_signal:
 	sti
+	testl $(_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SINGLESTEP),%edx
+	jz    1f
+
+	/* Really a signal */
+	/* edx:	work flags (arg3) */
 	leaq do_notify_resume(%rip),%rax
 	leaq -ARGOFFSET(%rsp),%rdi # &pt_regs -> arg1
 	xorl %esi,%esi # oldset -> arg2
 	call ptregscall_common
+1:	movl $_TIF_NEED_RESCHED,%edi
 	jmp sysret_check
 	
 	/* Do syscall tracing */
@@ -484,6 +489,8 @@ retint_careful:
 	jmp retint_check
 	
 retint_signal:
+	testl $(_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SINGLESTEP),%edx
+	jz    retint_swapgs
 	sti
 	SAVE_REST
 	movq $-1,ORIG_RAX(%rsp) 			
@@ -492,8 +499,8 @@ retint_signal:
 	call do_notify_resume
 	RESTORE_REST
 	cli
+	movl $_TIF_NEED_RESCHED,%edi
 	GET_THREAD_INFO(%rcx)
-	movl $_TIF_WORK_MASK,%edi
 	jmp retint_check
 
 #ifdef CONFIG_PREEMPT

arch/x86_64/kernel/io_apic.c

@@ -1804,76 +1804,6 @@ device_initcall(ioapic_init_sysfs);
 
 #define IO_APIC_MAX_ID		0xFE
 
-int __init io_apic_get_unique_id (int ioapic, int apic_id)
-{
-	union IO_APIC_reg_00 reg_00;
-	static physid_mask_t apic_id_map;
-	unsigned long flags;
-	int i = 0;
-
-	/*
-	 * The P4 platform supports up to 256 APIC IDs on two separate APIC 
-	 * buses (one for LAPICs, one for IOAPICs), where predecessors only 
-	 * supports up to 16 on one shared APIC bus.
-	 * 
-	 * TBD: Expand LAPIC/IOAPIC support on P4-class systems to take full
-	 *      advantage of new APIC bus architecture.
-	 */
-
-	if (physids_empty(apic_id_map))
-		apic_id_map = phys_cpu_present_map;
-
-	spin_lock_irqsave(&ioapic_lock, flags);
-	reg_00.raw = io_apic_read(ioapic, 0);
-	spin_unlock_irqrestore(&ioapic_lock, flags);
-
-	if (apic_id >= IO_APIC_MAX_ID) {
-		apic_printk(APIC_QUIET, KERN_WARNING "IOAPIC[%d]: Invalid apic_id %d, trying "
-			"%d\n", ioapic, apic_id, reg_00.bits.ID);
-		apic_id = reg_00.bits.ID;
-	}
-
-	/*
-	 * Every APIC in a system must have a unique ID or we get lots of nice 
-	 * 'stuck on smp_invalidate_needed IPI wait' messages.
-	 */
-	if (physid_isset(apic_id, apic_id_map)) {
-
-		for (i = 0; i < IO_APIC_MAX_ID; i++) {
-			if (!physid_isset(i, apic_id_map))
-				break;
-		}
-
-		if (i == IO_APIC_MAX_ID)
-			panic("Max apic_id exceeded!\n");
-
-		apic_printk(APIC_VERBOSE, KERN_WARNING "IOAPIC[%d]: apic_id %d already used, "
-			"trying %d\n", ioapic, apic_id, i);
-
-		apic_id = i;
-	} 
-
-	physid_set(apic_id, apic_id_map);
-
-	if (reg_00.bits.ID != apic_id) {
-		reg_00.bits.ID = apic_id;
-
-		spin_lock_irqsave(&ioapic_lock, flags);
-		io_apic_write(ioapic, 0, reg_00.raw);
-		reg_00.raw = io_apic_read(ioapic, 0);
-		spin_unlock_irqrestore(&ioapic_lock, flags);
-
-		/* Sanity check */
-		if (reg_00.bits.ID != apic_id)
-			panic("IOAPIC[%d]: Unable change apic_id!\n", ioapic);
-	}
-
-	apic_printk(APIC_VERBOSE,KERN_INFO "IOAPIC[%d]: Assigned apic_id %d\n", ioapic, apic_id);
-
-	return apic_id;
-}
-
-
 int __init io_apic_get_version (int ioapic)
 {
 	union IO_APIC_reg_01	reg_01;

arch/x86_64/kernel/mpparse.c

@@ -107,6 +107,7 @@ static int __init mpf_checksum(unsigned char *mp, int len)
 static void __init MP_processor_info (struct mpc_config_processor *m)
 {
 	int ver;
+	static int found_bsp=0;
 
 	if (!(m->mpc_cpuflag & CPU_ENABLED))
 		return;
@@ -126,11 +127,6 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
 			" Processor ignored.\n", NR_CPUS);
 		return;
 	}
-	if (num_processors >= maxcpus) {
-		printk(KERN_WARNING "WARNING: maxcpus limit of %i reached."
-			" Processor ignored.\n", maxcpus);
-		return;
-	}
 
 	num_processors++;
 
@@ -150,7 +146,19 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
 		ver = 0x10;
 	}
 	apic_version[m->mpc_apicid] = ver;
-	bios_cpu_apicid[num_processors - 1] = m->mpc_apicid;
+ 	if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) {
+ 		/*
+ 		 * bios_cpu_apicid is required to have processors listed
+ 		 * in same order as logical cpu numbers. Hence the first
+ 		 * entry is BSP, and so on.
+ 		 */
+ 		bios_cpu_apicid[0] = m->mpc_apicid;
+ 		x86_cpu_to_apicid[0] = m->mpc_apicid;
+ 		found_bsp = 1;
+ 	} else {
+ 		bios_cpu_apicid[num_processors - found_bsp] = m->mpc_apicid;
+ 		x86_cpu_to_apicid[num_processors - found_bsp] = m->mpc_apicid;
+ 	}
 }
 
 static void __init MP_bus_info (struct mpc_config_bus *m)
@@ -759,7 +767,7 @@ void __init mp_register_ioapic (
 	mp_ioapics[idx].mpc_apicaddr = address;
 
 	set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
-	mp_ioapics[idx].mpc_apicid = io_apic_get_unique_id(idx, id);
+	mp_ioapics[idx].mpc_apicid = id;
 	mp_ioapics[idx].mpc_apicver = io_apic_get_version(idx);
 	
 	/* 

arch/x86_64/kernel/nmi.c

@@ -33,6 +33,7 @@
 #include <asm/msr.h>
 #include <asm/proto.h>
 #include <asm/kdebug.h>
+#include <asm/local.h>
 
 /*
  * lapic_nmi_owner tracks the ownership of the lapic NMI hardware:
@@ -59,7 +60,8 @@ int panic_on_timeout;
 
 unsigned int nmi_watchdog = NMI_DEFAULT;
 static unsigned int nmi_hz = HZ;
-unsigned int nmi_perfctr_msr;	/* the MSR to reset in NMI handler */
+static unsigned int nmi_perfctr_msr;	/* the MSR to reset in NMI handler */
+static unsigned int nmi_p4_cccr_val;
 
 /* Note that these events don't tick when the CPU idles. This means
    the frequency varies with CPU load. */
@@ -71,61 +73,87 @@ unsigned int nmi_perfctr_msr;	/* the MSR to reset in NMI handler */
 #define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING	0x76
 #define K7_NMI_EVENT		K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING
 
-#define P6_EVNTSEL0_ENABLE	(1 << 22)
-#define P6_EVNTSEL_INT		(1 << 20)
-#define P6_EVNTSEL_OS		(1 << 17)
-#define P6_EVNTSEL_USR		(1 << 16)
-#define P6_EVENT_CPU_CLOCKS_NOT_HALTED	0x79
-#define P6_NMI_EVENT		P6_EVENT_CPU_CLOCKS_NOT_HALTED
+#define MSR_P4_MISC_ENABLE	0x1A0
+#define MSR_P4_MISC_ENABLE_PERF_AVAIL	(1<<7)
+#define MSR_P4_MISC_ENABLE_PEBS_UNAVAIL	(1<<12)
+#define MSR_P4_PERFCTR0		0x300
+#define MSR_P4_CCCR0		0x360
+#define P4_ESCR_EVENT_SELECT(N)	((N)<<25)
+#define P4_ESCR_OS		(1<<3)
+#define P4_ESCR_USR		(1<<2)
+#define P4_CCCR_OVF_PMI0	(1<<26)
+#define P4_CCCR_OVF_PMI1	(1<<27)
+#define P4_CCCR_THRESHOLD(N)	((N)<<20)
+#define P4_CCCR_COMPLEMENT	(1<<19)
+#define P4_CCCR_COMPARE		(1<<18)
+#define P4_CCCR_REQUIRED	(3<<16)
+#define P4_CCCR_ESCR_SELECT(N)	((N)<<13)
+#define P4_CCCR_ENABLE		(1<<12)
+/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter
+   CRU_ESCR0 (with any non-null event selector) through a complemented
+   max threshold. [IA32-Vol3, Section 14.9.9] */
+#define MSR_P4_IQ_COUNTER0	0x30C
+#define P4_NMI_CRU_ESCR0	(P4_ESCR_EVENT_SELECT(0x3F)|P4_ESCR_OS|P4_ESCR_USR)
+#define P4_NMI_IQ_CCCR0	\
+	(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)
+
+static __init inline int nmi_known_cpu(void)
+{
+	switch (boot_cpu_data.x86_vendor) {
+	case X86_VENDOR_AMD:
+		return boot_cpu_data.x86 == 15;
+	case X86_VENDOR_INTEL:
+		return boot_cpu_data.x86 == 15;
+	}
+	return 0;
+}
 
 /* Run after command line and cpu_init init, but before all other checks */
 void __init nmi_watchdog_default(void)
 {
 	if (nmi_watchdog != NMI_DEFAULT)
 		return;
-
-	/* For some reason the IO APIC watchdog doesn't work on the AMD
-	   8111 chipset. For now switch to local APIC mode using
-	   perfctr0 there.  On Intel CPUs we don't have code to handle
-	   the perfctr and the IO-APIC seems to work, so use that.  */
-
-	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) {
-		nmi_watchdog = NMI_LOCAL_APIC; 
-		printk(KERN_INFO 
-              "Using local APIC NMI watchdog using perfctr0\n");
-	} else {
-		printk(KERN_INFO "Using IO APIC NMI watchdog\n");
+	if (nmi_known_cpu())
+		nmi_watchdog = NMI_LOCAL_APIC;
+	else
 		nmi_watchdog = NMI_IO_APIC;
-	}
 }
 
-/* Why is there no CPUID flag for this? */
-static __init int cpu_has_lapic(void)
+#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)
 {
-	switch (boot_cpu_data.x86_vendor) { 
-	case X86_VENDOR_INTEL:
-	case X86_VENDOR_AMD: 
-		return boot_cpu_data.x86 >= 6; 
-	/* .... add more cpus here or find a different way to figure this out. */	
-	default:
-		return 0;
-	} 	
+	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)
+int __init check_nmi_watchdog (void)
 {
-	int counts[NR_CPUS];
+	volatile int endflag = 0;
+	int *counts;
 	int cpu;
 
-	if (nmi_watchdog == NMI_NONE)
-		return 0;
+	counts = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL);
+	if (!counts)
+		return -1;
 
-	if (nmi_watchdog == NMI_LOCAL_APIC && !cpu_has_lapic())  {
-		nmi_watchdog = NMI_NONE;
-		return -1; 
-	}	
+	printk(KERN_INFO "testing NMI watchdog ... ");
 
-	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++)
 		counts[cpu] = cpu_pda[cpu].__nmi_count; 
@@ -133,15 +161,22 @@ static int __init check_nmi_watchdog (void)
 	mdelay((10*1000)/nmi_hz); // wait 10 ticks
 
 	for (cpu = 0; cpu < NR_CPUS; cpu++) {
+		if (!cpu_online(cpu))
+			continue;
 		if (cpu_pda[cpu].__nmi_count - counts[cpu] <= 5) {
-			printk("CPU#%d: NMI appears to be stuck (%d)!\n", 
+			endflag = 1;
+			printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n",
 			       cpu,
+			       counts[cpu],
 			       cpu_pda[cpu].__nmi_count);
 			nmi_active = 0;
 			lapic_nmi_owner &= ~LAPIC_NMI_WATCHDOG;
+			nmi_perfctr_msr = 0;
+			kfree(counts);
 			return -1;
 		}
 	}
+	endflag = 1;
 	printk("OK.\n");
 
 	/* now that we know it works we can reduce NMI frequency to
@@ -149,10 +184,9 @@ static int __init check_nmi_watchdog (void)
 	if (nmi_watchdog == NMI_LOCAL_APIC)
 		nmi_hz = 1;
 
+	kfree(counts);
 	return 0;
 }
-/* Have this called later during boot so counters are updating */
-late_initcall(check_nmi_watchdog);
 
 int __init setup_nmi_watchdog(char *str)
 {
@@ -170,7 +204,7 @@ int __init setup_nmi_watchdog(char *str)
 
 	if (nmi >= NMI_INVALID)
 		return 0;
-		nmi_watchdog = nmi;
+	nmi_watchdog = nmi;
 	return 1;
 }
 
@@ -185,7 +219,10 @@ static void disable_lapic_nmi_watchdog(void)
 		wrmsr(MSR_K7_EVNTSEL0, 0, 0);
 		break;
 	case X86_VENDOR_INTEL:
-		wrmsr(MSR_IA32_EVNTSEL0, 0, 0);
+		if (boot_cpu_data.x86 == 15) {
+			wrmsr(MSR_P4_IQ_CCCR0, 0, 0);
+			wrmsr(MSR_P4_CRU_ESCR0, 0, 0);
+		}
 		break;
 	}
 	nmi_active = -1;
@@ -253,7 +290,7 @@ void enable_timer_nmi_watchdog(void)
 
 static int nmi_pm_active; /* nmi_active before suspend */
 
-static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state)
+static int lapic_nmi_suspend(struct sys_device *dev, u32 state)
 {
 	nmi_pm_active = nmi_active;
 	disable_lapic_nmi_watchdog();
@@ -300,22 +337,27 @@ late_initcall(init_lapic_nmi_sysfs);
  * Original code written by Keith Owens.
  */
 
+static void clear_msr_range(unsigned int base, unsigned int n)
+{
+	unsigned int i;
+
+	for(i = 0; i < n; ++i)
+		wrmsr(base+i, 0, 0);
+}
+
 static void setup_k7_watchdog(void)
 {
 	int i;
 	unsigned int evntsel;
 
-	/* No check, so can start with slow frequency */
-	nmi_hz = 1; 
-
-	/* XXX should check these in EFER */
-
 	nmi_perfctr_msr = MSR_K7_PERFCTR0;
 
 	for(i = 0; i < 4; ++i) {
 		/* Simulator may not support it */
-		if (checking_wrmsrl(MSR_K7_EVNTSEL0+i, 0UL))
+		if (checking_wrmsrl(MSR_K7_EVNTSEL0+i, 0UL)) {
+			nmi_perfctr_msr = 0;
 			return;
+		}
 		wrmsrl(MSR_K7_PERFCTR0+i, 0UL);
 	}
 
@@ -325,12 +367,54 @@ static void setup_k7_watchdog(void)
 		| K7_NMI_EVENT;
 
 	wrmsr(MSR_K7_EVNTSEL0, evntsel, 0);
-	wrmsrl(MSR_K7_PERFCTR0, -((u64)cpu_khz*1000) / nmi_hz);
+	wrmsr(MSR_K7_PERFCTR0, -(cpu_khz/nmi_hz*1000), -1);
 	apic_write(APIC_LVTPC, APIC_DM_NMI);
 	evntsel |= K7_EVNTSEL_ENABLE;
 	wrmsr(MSR_K7_EVNTSEL0, evntsel, 0);
 }
 
+
+static int setup_p4_watchdog(void)
+{
+	unsigned int misc_enable, dummy;
+
+	rdmsr(MSR_P4_MISC_ENABLE, misc_enable, dummy);
+	if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL))
+		return 0;
+
+	nmi_perfctr_msr = MSR_P4_IQ_COUNTER0;
+	nmi_p4_cccr_val = P4_NMI_IQ_CCCR0;
+#ifdef CONFIG_SMP
+	if (smp_num_siblings == 2)
+		nmi_p4_cccr_val |= P4_CCCR_OVF_PMI1;
+#endif
+
+	if (!(misc_enable & MSR_P4_MISC_ENABLE_PEBS_UNAVAIL))
+		clear_msr_range(0x3F1, 2);
+	/* MSR 0x3F0 seems to have a default value of 0xFC00, but current
+	   docs doesn't fully define it, so leave it alone for now. */
+	if (boot_cpu_data.x86_model >= 0x3) {
+		/* MSR_P4_IQ_ESCR0/1 (0x3ba/0x3bb) removed */
+		clear_msr_range(0x3A0, 26);
+		clear_msr_range(0x3BC, 3);
+	} else {
+		clear_msr_range(0x3A0, 31);
+	}
+	clear_msr_range(0x3C0, 6);
+	clear_msr_range(0x3C8, 6);
+	clear_msr_range(0x3E0, 2);
+	clear_msr_range(MSR_P4_CCCR0, 18);
+	clear_msr_range(MSR_P4_PERFCTR0, 18);
+
+	wrmsr(MSR_P4_CRU_ESCR0, P4_NMI_CRU_ESCR0, 0);
+	wrmsr(MSR_P4_IQ_CCCR0, P4_NMI_IQ_CCCR0 & ~P4_CCCR_ENABLE, 0);
+	Dprintk("setting P4_IQ_COUNTER0 to 0x%08lx\n", -(cpu_khz/nmi_hz*1000));
+	wrmsr(MSR_P4_IQ_COUNTER0, -(cpu_khz/nmi_hz*1000), -1);
+	apic_write(APIC_LVTPC, APIC_DM_NMI);
+	wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0);
+	return 1;
+}
+
 void setup_apic_nmi_watchdog(void)
 {
 	switch (boot_cpu_data.x86_vendor) {
@@ -341,6 +425,13 @@ void setup_apic_nmi_watchdog(void)
 			return;
 		setup_k7_watchdog();
 		break;
+	case X86_VENDOR_INTEL:
+		if (boot_cpu_data.x86 != 15)
+			return;
+		if (!setup_p4_watchdog())
+			return;
+		break;
+
 	default:
 		return;
 	}
@@ -355,56 +446,67 @@ void setup_apic_nmi_watchdog(void)
  *
  * as these watchdog NMI IRQs are generated on every CPU, we only
  * have to check the current processor.
- *
- * since NMIs don't listen to _any_ locks, we have to be extremely
- * careful not to rely on unsafe variables. The printk might lock
- * up though, so we have to break up any console locks first ...
- * [when there will be more tty-related locks, break them up
- *  here too!]
  */
 
-static unsigned int
-	last_irq_sums [NR_CPUS],
-	alert_counter [NR_CPUS];
+static DEFINE_PER_CPU(unsigned, last_irq_sum);
+static DEFINE_PER_CPU(local_t, alert_counter);
+static DEFINE_PER_CPU(int, nmi_touch);
 
 void touch_nmi_watchdog (void)
 {
 	int i;
 
 	/*
-	 * Just reset the alert counters, (other CPUs might be
-	 * spinning on locks we hold):
+ 	 * Tell other CPUs to reset their alert counters. We cannot
+	 * do it ourselves because the alert count increase is not
+	 * atomic.
 	 */
 	for (i = 0; i < NR_CPUS; i++)
-		alert_counter[i] = 0;
+		per_cpu(nmi_touch, i) = 1;
 }
 
 void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason)
 {
-	int sum, cpu;
+	int sum;
+	int touched = 0;
 
-	cpu = safe_smp_processor_id();
 	sum = read_pda(apic_timer_irqs);
-	if (last_irq_sums[cpu] == sum) {
+	if (__get_cpu_var(nmi_touch)) {
+		__get_cpu_var(nmi_touch) = 0;
+		touched = 1;
+	}
+	if (!touched && __get_cpu_var(last_irq_sum) == sum) {
 		/*
 		 * Ayiee, looks like this CPU is stuck ...
 		 * wait a few IRQs (5 seconds) before doing the oops ...
 		 */
-		alert_counter[cpu]++;
-		if (alert_counter[cpu] == 5*nmi_hz) {
+		local_inc(&__get_cpu_var(alert_counter));
+		if (local_read(&__get_cpu_var(alert_counter)) == 5*nmi_hz) {
 			if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT)
 							== NOTIFY_STOP) {
-				alert_counter[cpu] = 0; 
+				local_set(&__get_cpu_var(alert_counter), 0);
 				return;
 			} 
 			die_nmi("NMI Watchdog detected LOCKUP on CPU%d", regs);
 		}
 	} else {
-		last_irq_sums[cpu] = sum;
-		alert_counter[cpu] = 0;
+		__get_cpu_var(last_irq_sum) = sum;
+		local_set(&__get_cpu_var(alert_counter), 0);
 	}
-	if (nmi_perfctr_msr)
+	if (nmi_perfctr_msr) {
+ 		if (nmi_perfctr_msr == MSR_P4_IQ_COUNTER0) {
+ 			/*
+ 			 * P4 quirks:
+ 			 * - An overflown perfctr will assert its interrupt
+ 			 *   until the OVF flag in its CCCR is cleared.
+ 			 * - LVTPC is masked on interrupt and must be
+ 			 *   unmasked by the LVTPC handler.
+ 			 */
+ 			wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0);
+ 			apic_write(APIC_LVTPC, APIC_DM_NMI);
+ 		}
 		wrmsr(nmi_perfctr_msr, -(cpu_khz/nmi_hz*1000), -1);
+	}
 }
 
 static int dummy_nmi_callback(struct pt_regs * regs, int cpu)

arch/x86_64/kernel/pmtimer.c

+/* Ported over from i386 by AK, original copyright was:
+ *
+ * (C) Dominik Brodowski <linux@brodo.de> 2003
+ *
+ * Driver to use the Power Management Timer (PMTMR) available in some
+ * southbridges as primary timing source for the Linux kernel.
+ *
+ * Based on parts of linux/drivers/acpi/hardware/hwtimer.c, timer_pit.c,
+ * timer_hpet.c, and on Arjan van de Ven's implementation for 2.4.
+ *
+ * This file is licensed under the GPL v2.
+ *
+ * Dropped all the hardware bug workarounds for now. Hopefully they
+ * are not needed on 64bit chipsets.
+ */
+
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/time.h>
+#include <linux/init.h>
+#include <linux/cpumask.h>
+#include <asm/io.h>
+#include <asm/proto.h>
+#include <asm/msr.h>
+#include <asm/vsyscall.h>
+
+/* The I/O port the PMTMR resides at.
+ * The location is detected during setup_arch(),
+ * in arch/i386/kernel/acpi/boot.c */
+u32 pmtmr_ioport;
+
+/* value of the Power timer at last timer interrupt */
+static u32 offset_delay;
+static u32 last_pmtmr_tick;
+
+#define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */
+
+static inline u32 cyc2us(u32 cycles)
+{
+	/* The Power Management Timer ticks at 3.579545 ticks per microsecond.
+	 * 1 / PM_TIMER_FREQUENCY == 0.27936511 =~ 286/1024 [error: 0.024%]
+	 *
+	 * Even with HZ = 100, delta is at maximum 35796 ticks, so it can
+	 * easily be multiplied with 286 (=0x11E) without having to fear
+	 * u32 overflows.
+	 */
+	cycles *= 286;
+	return (cycles >> 10);
+}
+
+int pmtimer_mark_offset(void)
+{
+	static int first_run = 1;
+	unsigned long tsc;
+	u32 lost;
+
+	u32 tick = inl(pmtmr_ioport);
+	u32 delta;
+
+	delta = cyc2us((tick - last_pmtmr_tick) & ACPI_PM_MASK);
+
+	last_pmtmr_tick = tick;
+	monotonic_base += delta * NSEC_PER_USEC;
+
+	delta += offset_delay;
+
+	lost = delta / (USEC_PER_SEC / HZ);
+	offset_delay = delta % (USEC_PER_SEC / HZ);
+
+	rdtscll(tsc);
+	vxtime.last_tsc = tsc - offset_delay * cpu_khz;
+
+	/* don't calculate delay for first run,
+	   or if we've got less then a tick */
+	if (first_run || (lost < 1)) {
+		first_run = 0;
+		offset_delay = 0;
+	}
+
+	return lost - 1;
+}
+
+unsigned int do_gettimeoffset_pm(void)
+{
+	u32 now, offset, delta = 0;
+
+	offset = last_pmtmr_tick;
+	now = inl(pmtmr_ioport);
+	delta = (now - offset) & ACPI_PM_MASK;
+
+	return offset_delay + cyc2us(delta);
+}
+
+
+static int __init nopmtimer_setup(char *s)
+{
+	pmtmr_ioport = 0;
+	return 0;
+}
+
+__setup("nopmtimer", nopmtimer_setup);

arch/x86_64/kernel/ptrace.c

@@ -257,13 +257,13 @@ static int putreg(struct task_struct *child,
 			value &= 0xffff;
 			return 0;
 		case offsetof(struct user_regs_struct,fs_base):
-			if (!((value >> 48) == 0 || (value >> 48) == 0xffff))
-				return -EIO; 
+			if (value >= TASK_SIZE)
+				return -EIO;
 			child->thread.fs = value;
 			return 0;
 		case offsetof(struct user_regs_struct,gs_base):
-			if (!((value >> 48) == 0 || (value >> 48) == 0xffff))
-				return -EIO; 
+			if (value >= TASK_SIZE)
+				return -EIO;
 			child->thread.gs = value;
 			return 0;
 		case offsetof(struct user_regs_struct, eflags):
@@ -277,6 +277,11 @@ static int putreg(struct task_struct *child,
 				return -EIO;
 			value &= 0xffff;
 			break;
+		case offsetof(struct user_regs_struct, rip):
+			/* Check if the new RIP address is canonical */
+			if (value >= TASK_SIZE)
+				return -EIO;
+			break;
 	}
 	put_stack_long(child, regno - sizeof(struct pt_regs), value);
 	return 0;

arch/x86_64/kernel/setup.c

@@ -727,11 +727,12 @@ static void __init display_cacheinfo(struct cpuinfo_x86 *c)
 static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
-	int cpu = c->x86_apicid;
+	int cpu = smp_processor_id();
 	int node = 0;
 	if (c->x86_num_cores == 1)
 		return;
-	cpu_core_id[cpu] = cpu >> hweight32(c->x86_num_cores - 1);
+	/* Fix up the APIC ID following the AMD specification. */
+ 	cpu_core_id[cpu] >>= hweight32(c->x86_num_cores - 1);
 
 #ifdef CONFIG_NUMA
 	/* When an ACPI SRAT table is available use the mappings from SRAT
@@ -745,6 +746,9 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 		node = cpu_to_node[cpu];
 	}
 #endif
+	/* For now: - better than BAD_APIC_ID at least*/
+	phys_proc_id[cpu] = cpu_core_id[cpu];
+
 	printk(KERN_INFO "CPU %d(%d) -> Node %d -> Core %d\n",
 			cpu, c->x86_num_cores, node, cpu_core_id[cpu]);
 #endif
@@ -925,7 +929,6 @@ void __init early_identify_cpu(struct cpuinfo_x86 *c)
 	c->x86_clflush_size = 64;
 	c->x86_cache_alignment = c->x86_clflush_size;
 	c->x86_num_cores = 1;
-	c->x86_apicid = c == &boot_cpu_data ? 0 : c - cpu_data;
 	c->extended_cpuid_level = 0;
 	memset(&c->x86_capability, 0, sizeof c->x86_capability);
 
@@ -954,11 +957,15 @@ void __init early_identify_cpu(struct cpuinfo_x86 *c)
 		} 
 		if (c->x86_capability[0] & (1<<19)) 
 			c->x86_clflush_size = ((misc >> 8) & 0xff) * 8;
-		c->x86_apicid = misc >> 24;
 	} else {
 		/* Have CPUID level 0 only - unheard of */
 		c->x86 = 4;
 	}
+
+#ifdef CONFIG_SMP
+	phys_proc_id[smp_processor_id()] =
+	cpu_core_id[smp_processor_id()] = (cpuid_ebx(1) >> 24) & 0xff;
+#endif
 }
 
 /*
@@ -1088,7 +1095,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
 		/* Other (Linux-defined) */
-		"cxmmx", NULL, "cyrix_arr", "centaur_mcr", "k8c+",
+		"cxmmx", NULL, "cyrix_arr", "centaur_mcr", NULL,
 		"constant_tsc", NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,

arch/x86_64/kernel/smpboot.c

@@ -56,6 +56,7 @@
 #include <asm/kdebug.h>
 #include <asm/tlbflush.h>
 #include <asm/proto.h>
+#include <asm/nmi.h>
 
 /* Change for real CPU hotplug. Note other files need to be fixed
    first too. */
@@ -125,96 +126,210 @@ static void __cpuinit smp_store_cpu_info(int id)
 
 	*c = boot_cpu_data;
 	identify_cpu(c);
+	print_cpu_info(c);
 }
 
 /*
- * Synchronize TSCs of CPUs
+ * New Funky TSC sync algorithm borrowed from IA64.
+ * Main advantage is that it doesn't reset the TSCs fully and
+ * in general looks more robust and it works better than my earlier
+ * attempts. I believe it was written by David Mosberger. Some minor
+ * adjustments for x86-64 by me -AK
  *
- * This new algorithm is less accurate than the old "zero TSCs"
- * one, but we cannot zero TSCs anymore in the new hotplug CPU
- * model.
+ * Original comment reproduced below.
+ *
+ * Synchronize TSC of the current (slave) CPU with the TSC of the
+ * MASTER CPU (normally the time-keeper CPU).  We use a closed loop to
+ * eliminate the possibility of unaccounted-for errors (such as
+ * getting a machine check in the middle of a calibration step).  The
+ * basic idea is for the slave to ask the master what itc value it has
+ * and to read its own itc before and after the master responds.  Each
+ * iteration gives us three timestamps:
+ *
+ *	slave		master
+ *
+ *	t0 ---\
+ *             ---\
+ *		   --->
+ *			tm
+ *		   /---
+ *	       /---
+ *	t1 <---
+ *
+ *
+ * The goal is to adjust the slave's TSC such that tm falls exactly
+ * half-way between t0 and t1.  If we achieve this, the clocks are
+ * synchronized provided the interconnect between the slave and the
+ * master is symmetric.  Even if the interconnect were asymmetric, we
+ * would still know that the synchronization error is smaller than the
+ * roundtrip latency (t0 - t1).
+ *
+ * When the interconnect is quiet and symmetric, this lets us
+ * synchronize the TSC to within one or two cycles.  However, we can
+ * only *guarantee* that the synchronization is accurate to within a
+ * round-trip time, which is typically in the range of several hundred
+ * cycles (e.g., ~500 cycles).  In practice, this means that the TSCs
+ * are usually almost perfectly synchronized, but we shouldn't assume
+ * that the accuracy is much better than half a micro second or so.
+ *
+ * [there are other errors like the latency of RDTSC and of the
+ * WRMSR. These can also account to hundreds of cycles. So it's
+ * probably worse. It claims 153 cycles error on a dual Opteron,
+ * but I suspect the numbers are actually somewhat worse -AK]
  */
 
-static atomic_t __cpuinitdata tsc_flag;
+#define MASTER	0
+#define SLAVE	(SMP_CACHE_BYTES/8)
+
+/* Intentionally don't use cpu_relax() while TSC synchronization
+   because we don't want to go into funky power save modi or cause
+   hypervisors to schedule us away.  Going to sleep would likely affect
+   latency and low latency is the primary objective here. -AK */
+#define no_cpu_relax() barrier()
+
 static __cpuinitdata DEFINE_SPINLOCK(tsc_sync_lock);
-static unsigned long long __cpuinitdata bp_tsc, ap_tsc;
+static volatile __cpuinitdata unsigned long go[SLAVE + 1];
+static int notscsync __cpuinitdata;
+
+#undef DEBUG_TSC_SYNC
 
-#define NR_LOOPS 5
+#define NUM_ROUNDS	64	/* magic value */
+#define NUM_ITERS	5	/* likewise */
 
-static void __cpuinit sync_tsc_bp_init(int init)
+/* Callback on boot CPU */
+static __cpuinit void sync_master(void *arg)
 {
-	if (init)
-		_raw_spin_lock(&tsc_sync_lock);
-	else
-		_raw_spin_unlock(&tsc_sync_lock);
-	atomic_set(&tsc_flag, 0);
+	unsigned long flags, i;
+
+	if (smp_processor_id() != boot_cpu_id)
+		return;
+
+	go[MASTER] = 0;
+
+	local_irq_save(flags);
+	{
+		for (i = 0; i < NUM_ROUNDS*NUM_ITERS; ++i) {
+			while (!go[MASTER])
+				no_cpu_relax();
+			go[MASTER] = 0;
+			rdtscll(go[SLAVE]);
+		}
+	}
+	local_irq_restore(flags);
 }
 
 /*
- * Synchronize TSC on AP with BP.
+ * Return the number of cycles by which our tsc differs from the tsc
+ * on the master (time-keeper) CPU.  A positive number indicates our
+ * tsc is ahead of the master, negative that it is behind.
  */
-static void __cpuinit __sync_tsc_ap(void)
+static inline long
+get_delta(long *rt, long *master)
 {
-	if (!cpu_has_tsc)
-		return;
-	Dprintk("AP %d syncing TSC\n", smp_processor_id());
+	unsigned long best_t0 = 0, best_t1 = ~0UL, best_tm = 0;
+	unsigned long tcenter, t0, t1, tm;
+	int i;
 
-	while (atomic_read(&tsc_flag) != 0)
-		cpu_relax();
-	atomic_inc(&tsc_flag);
-	mb();
-	_raw_spin_lock(&tsc_sync_lock);
-	wrmsrl(MSR_IA32_TSC, bp_tsc);
-	_raw_spin_unlock(&tsc_sync_lock);
-	rdtscll(ap_tsc);
-	mb();
-	atomic_inc(&tsc_flag);
-	mb();
+	for (i = 0; i < NUM_ITERS; ++i) {
+		rdtscll(t0);
+		go[MASTER] = 1;
+		while (!(tm = go[SLAVE]))
+			no_cpu_relax();
+		go[SLAVE] = 0;
+		rdtscll(t1);
+
+		if (t1 - t0 < best_t1 - best_t0)
+			best_t0 = t0, best_t1 = t1, best_tm = tm;
+	}
+
+	*rt = best_t1 - best_t0;
+	*master = best_tm - best_t0;
+
+	/* average best_t0 and best_t1 without overflow: */
+	tcenter = (best_t0/2 + best_t1/2);
+	if (best_t0 % 2 + best_t1 % 2 == 2)
+		++tcenter;
+	return tcenter - best_tm;
 }
 
-static void __cpuinit sync_tsc_ap(void)
+static __cpuinit void sync_tsc(void)
 {
-	int i;
-	for (i = 0; i < NR_LOOPS; i++)
-		__sync_tsc_ap();
+	int i, done = 0;
+	long delta, adj, adjust_latency = 0;
+	unsigned long flags, rt, master_time_stamp, bound;
+#if DEBUG_TSC_SYNC
+	static struct syncdebug {
+		long rt;	/* roundtrip time */
+		long master;	/* master's timestamp */
+		long diff;	/* difference between midpoint and master's timestamp */
+		long lat;	/* estimate of tsc adjustment latency */
+	} t[NUM_ROUNDS] __cpuinitdata;
+#endif
+
+	go[MASTER] = 1;
+
+	smp_call_function(sync_master, NULL, 1, 0);
+
+	while (go[MASTER])	/* wait for master to be ready */
+		no_cpu_relax();
+
+	spin_lock_irqsave(&tsc_sync_lock, flags);
+	{
+		for (i = 0; i < NUM_ROUNDS; ++i) {
+			delta = get_delta(&rt, &master_time_stamp);
+			if (delta == 0) {
+				done = 1;	/* let's lock on to this... */
+				bound = rt;
+			}
+
+			if (!done) {
+				unsigned long t;
+				if (i > 0) {
+					adjust_latency += -delta;
+					adj = -delta + adjust_latency/4;
+				} else
+					adj = -delta;
+
+				rdtscll(t);
+				wrmsrl(MSR_IA32_TSC, t + adj);
+			}
+#if DEBUG_TSC_SYNC
+			t[i].rt = rt;
+			t[i].master = master_time_stamp;
+			t[i].diff = delta;
+			t[i].lat = adjust_latency/4;
+#endif
+		}
+	}
+	spin_unlock_irqrestore(&tsc_sync_lock, flags);
+
+#if DEBUG_TSC_SYNC
+	for (i = 0; i < NUM_ROUNDS; ++i)
+		printk("rt=%5ld master=%5ld diff=%5ld adjlat=%5ld\n",
+		       t[i].rt, t[i].master, t[i].diff, t[i].lat);
+#endif
+
+	printk(KERN_INFO
+	       "CPU %d: synchronized TSC with CPU %u (last diff %ld cycles, "
+	       "maxerr %lu cycles)\n",
+	       smp_processor_id(), boot_cpu_id, delta, rt);
 }
 
-/*
- * Synchronize TSC from BP to AP.
- */
-static void __cpuinit __sync_tsc_bp(int cpu)
+static void __cpuinit tsc_sync_wait(void)
 {
-	if (!cpu_has_tsc)
+	if (notscsync || !cpu_has_tsc)
 		return;
-
-	/* Wait for AP */
-	while (atomic_read(&tsc_flag) == 0)
-		cpu_relax();
-	/* Save BPs TSC */
-	sync_core();
-	rdtscll(bp_tsc);
-	/* Don't do the sync core here to avoid too much latency. */
-	mb();
-	/* Start the AP */
-	_raw_spin_unlock(&tsc_sync_lock);
-	/* Wait for AP again */
-	while (atomic_read(&tsc_flag) < 2)
-		cpu_relax();
-	rdtscl(bp_tsc);
-	barrier();
+	printk(KERN_INFO "CPU %d: Syncing TSC to CPU %u.\n", smp_processor_id(),
+			boot_cpu_id);
+	sync_tsc();
 }
 
-static void __cpuinit sync_tsc_bp(int cpu)
+static __init int notscsync_setup(char *s)
 {
-	int i;
-	for (i = 0; i < NR_LOOPS - 1; i++) {
-		__sync_tsc_bp(cpu);
-		sync_tsc_bp_init(1);
-	}
-	__sync_tsc_bp(cpu);
-	printk(KERN_INFO "Synced TSC of CPU %d difference %Ld\n",
-	       cpu, ap_tsc - bp_tsc);
+	notscsync = 1;
+	return 0;
 }
+__setup("notscsync", notscsync_setup);
 
 static atomic_t init_deasserted __cpuinitdata;
 
@@ -315,11 +430,6 @@ void __cpuinit start_secondary(void)
 	cpu_init();
 	smp_callin();
 
-	/*
-	 * Synchronize the TSC with the BP
-	 */
-	sync_tsc_ap();
-
 	/* otherwise gcc will move up the smp_processor_id before the cpu_init */
 	barrier();
 
@@ -334,7 +444,6 @@ void __cpuinit start_secondary(void)
 		enable_8259A_irq(0);
 	}
 
-
 	enable_APIC_timer();
 
 	/*
@@ -343,6 +452,11 @@ void __cpuinit start_secondary(void)
 	cpu_set(smp_processor_id(), cpu_online_map);
 	mb();
 
+	/* Wait for TSC sync to not schedule things before.
+	   We still process interrupts, which could see an inconsistent
+	   time in that window unfortunately. */
+	tsc_sync_wait();
+
 	cpu_idle();
 }
 
@@ -531,7 +645,6 @@ static int __cpuinit do_boot_cpu(int cpu, int apicid)
 		printk("failed fork for CPU %d\n", cpu);
 		return PTR_ERR(idle);
 	}
-	x86_cpu_to_apicid[cpu] = apicid;
 
 	cpu_pda[cpu].pcurrent = idle;
 
@@ -600,8 +713,6 @@ static int __cpuinit do_boot_cpu(int cpu, int apicid)
 
 		if (cpu_isset(cpu, cpu_callin_map)) {
 			/* number CPUs logically, starting from 1 (BSP is 0) */
-			Dprintk("OK.\n");
-			print_cpu_info(&cpu_data[cpu]);
 			Dprintk("CPU has booted.\n");
 		} else {
 			boot_error = 1;
@@ -842,7 +953,6 @@ void __cpuinit smp_prepare_cpus(unsigned int max_cpus)
 		      GET_APIC_ID(apic_read(APIC_ID)), boot_cpu_id);
 		/* Or can we switch back to PIC here? */
 	}
-	x86_cpu_to_apicid[0] = boot_cpu_id;
 
 	/*
 	 * Now start the IO-APICs
@@ -889,18 +999,14 @@ int __cpuinit __cpu_up(unsigned int cpu)
 		printk("__cpu_up: bad cpu %d\n", cpu);
 		return -EINVAL;
 	}
-	sync_tsc_bp_init(1);
 
 	/* Boot it! */
 	err = do_boot_cpu(cpu, apicid);
 	if (err < 0) {
-		sync_tsc_bp_init(0);
 		Dprintk("do_boot_cpu failed %d\n", err);
 		return err;
 	}
 
-	sync_tsc_bp(cpu);
-
 	/* Unleash the CPU! */
 	Dprintk("waiting for cpu %d\n", cpu);
 
@@ -923,4 +1029,6 @@ void __cpuinit smp_cpus_done(unsigned int max_cpus)
 
 	detect_siblings();
 	time_init_gtod();
+
+	check_nmi_watchdog();
 }

arch/x86_64/kernel/time.c

@@ -26,6 +26,8 @@
 #include <linux/sysdev.h>
 #include <linux/bcd.h>
 #include <linux/kallsyms.h>
+#include <linux/acpi.h>
+#include <acpi/achware.h>	/* for PM timer frequency */
 #include <asm/8253pit.h>
 #include <asm/pgtable.h>
 #include <asm/vsyscall.h>
@@ -396,6 +398,10 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 			(offset - vxtime.last)*(NSEC_PER_SEC/HZ) / hpet_tick;
 
 		vxtime.last = offset;
+#ifdef CONFIG_X86_PM_TIMER
+	} else if (vxtime.mode == VXTIME_PMTMR) {
+		lost = pmtimer_mark_offset();
+#endif
 	} else {
 		offset = (((tsc - vxtime.last_tsc) *
 			   vxtime.tsc_quot) >> 32) - (USEC_PER_SEC / HZ);
@@ -898,6 +904,13 @@ void __init time_init(void)
 			hpet_period;
 		cpu_khz = hpet_calibrate_tsc();
 		timename = "HPET";
+#ifdef CONFIG_X86_PM_TIMER
+	} else if (pmtmr_ioport) {
+		vxtime_hz = PM_TIMER_FREQUENCY;
+		timename = "PM";
+		pit_init();
+		cpu_khz = pit_calibrate_tsc();
+#endif
 	} else {
 		pit_init();
 		cpu_khz = pit_calibrate_tsc();
@@ -922,6 +935,27 @@ void __init time_init(void)
 #endif
 }
 
+/*
+ * Make an educated guess if the TSC is trustworthy and synchronized
+ * over all CPUs.
+ */
+static __init int unsynchronized_tsc(void)
+{
+#ifdef CONFIG_SMP
+	if (oem_force_hpet_timer())
+		return 1;
+ 	/* Intel systems are normally all synchronized. Exceptions
+ 	   are handled in the OEM check above. */
+ 	if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+ 		return 0;
+ 	/* All in a single socket - should be synchronized */
+ 	if (cpus_weight(cpu_core_map[0]) == num_online_cpus())
+ 		return 0;
+#endif
+ 	/* Assume multi socket systems are not synchronized */
+ 	return num_online_cpus() > 1;
+}
+
 /*
  * Decide after all CPUs are booted what mode gettimeofday should use.
  */
@@ -929,29 +963,23 @@ void __init time_init_gtod(void)
 {
 	char *timetype;
 
-	/*
-	 * AMD systems with more than one CPU don't have fully synchronized
-	 * TSCs. Always use HPET gettimeofday for these, although it is slower.
-	 * Intel SMP systems usually have synchronized TSCs, so use always
-	 * the TSC.
-	 *
-	 * Exceptions:
-	 * IBM Summit2 checked by oem_force_hpet_timer().
- 	 * AMD dual core may also not need HPET. Check me.
-	 *
-	 * Can be turned off with "notsc".
-	 */
-	if (num_online_cpus() > 1 &&
-	    boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
-		notsc = 1;
-	/* Some systems will want to disable TSC and use HPET. */
-	if (oem_force_hpet_timer())
+	if (unsynchronized_tsc())
 		notsc = 1;
 	if (vxtime.hpet_address && notsc) {
 		timetype = "HPET";
 		vxtime.last = hpet_readl(HPET_T0_CMP) - hpet_tick;
 		vxtime.mode = VXTIME_HPET;
 		do_gettimeoffset = do_gettimeoffset_hpet;
+#ifdef CONFIG_X86_PM_TIMER
+	/* Using PM for gettimeofday is quite slow, but we have no other
+	   choice because the TSC is too unreliable on some systems. */
+	} else if (pmtmr_ioport && !vxtime.hpet_address && notsc) {
+		timetype = "PM";
+		do_gettimeoffset = do_gettimeoffset_pm;
+		vxtime.mode = VXTIME_PMTMR;
+		sysctl_vsyscall = 0;
+		printk(KERN_INFO "Disabling vsyscall due to use of PM timer\n");
+#endif
 	} else {
 		timetype = vxtime.hpet_address ? "HPET/TSC" : "PIT/TSC";
 		vxtime.mode = VXTIME_TSC;

arch/x86_64/kernel/vsyscall.c

@@ -65,7 +65,7 @@ static force_inline void do_vgettimeofday(struct timeval * tv)
 		usec = (__xtime.tv_nsec / 1000) +
 			(__jiffies - __wall_jiffies) * (1000000 / HZ);
 
-		if (__vxtime.mode == VXTIME_TSC) {
+		if (__vxtime.mode != VXTIME_HPET) {
 			sync_core();
 			rdtscll(t);
 			if (t < __vxtime.last_tsc)
@@ -217,8 +217,9 @@ static int __init vsyscall_init(void)
 	BUG_ON((unsigned long) &vtime != VSYSCALL_ADDR(__NR_vtime));
 	BUG_ON((VSYSCALL_ADDR(0) != __fix_to_virt(VSYSCALL_FIRST_PAGE)));
 	map_vsyscall();
-	sysctl_vsyscall = 1;
+#ifdef CONFIG_SYSCTL
 	register_sysctl_table(kernel_root_table2, 0);
+#endif
 	return 0;
 }
 

arch/x86_64/mm/fault.c

@@ -234,6 +234,8 @@ static noinline void pgtable_bad(unsigned long address, struct pt_regs *regs,
 
 /*
  * Handle a fault on the vmalloc or module mapping area
+ *
+ * This assumes no large pages in there.
  */
 static int vmalloc_fault(unsigned long address)
 {
@@ -272,7 +274,10 @@ static int vmalloc_fault(unsigned long address)
 	if (!pte_present(*pte_ref))
 		return -1;
 	pte = pte_offset_kernel(pmd, address);
-	if (!pte_present(*pte) || pte_page(*pte) != pte_page(*pte_ref))
+	/* Don't use pte_page here, because the mappings can point
+	   outside mem_map, and the NUMA hash lookup cannot handle
+	   that. */
+	if (!pte_present(*pte) || pte_pfn(*pte) != pte_pfn(*pte_ref))
 		BUG();
 	__flush_tlb_all();
 	return 0;
@@ -346,7 +351,9 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	 * protection error (error_code & 1) == 0.
 	 */
 	if (unlikely(address >= TASK_SIZE)) {
-		if (!(error_code & 5)) {
+		if (!(error_code & 5) &&
+		      ((address >= VMALLOC_START && address < VMALLOC_END) ||
+		       (address >= MODULES_VADDR && address < MODULES_END))) {
 			if (vmalloc_fault(address) < 0)
 				goto bad_area_nosemaphore;
 			return;

arch/x86_64/mm/ioremap.c

@@ -272,7 +272,7 @@ void iounmap(volatile void __iomem *addr)
 	if ((p->flags >> 20) &&
 		p->phys_addr + p->size - 1 < virt_to_phys(high_memory)) {
 		/* p->size includes the guard page, but cpa doesn't like that */
-		change_page_attr(virt_to_page(__va(p->phys_addr)),
+		change_page_attr_addr((unsigned long)__va(p->phys_addr),
 				 p->size >> PAGE_SHIFT,
 				 PAGE_KERNEL);
 		global_flush_tlb();

crypto/crypto_null.c

@@ -21,6 +21,7 @@
 #include <linux/mm.h>
 #include <asm/scatterlist.h>
 #include <linux/crypto.h>
+#include <linux/string.h>
 
 #define NULL_KEY_SIZE		0
 #define NULL_BLOCK_SIZE		1
@@ -28,11 +29,13 @@
 
 static int null_compress(void *ctx, const u8 *src, unsigned int slen,
                          u8 *dst, unsigned int *dlen)
-{ return 0; }
-
-static int null_decompress(void *ctx, const u8 *src, unsigned int slen,
-                           u8 *dst, unsigned int *dlen)
-{ return 0; }
+{
+	if (slen > *dlen)
+		return -EINVAL;
+	memcpy(dst, src, slen);
+	*dlen = slen;
+	return 0;
+}
 
 static void null_init(void *ctx)
 { }
@@ -47,11 +50,10 @@ static int null_setkey(void *ctx, const u8 *key,
                        unsigned int keylen, u32 *flags)
 { return 0; }
 
-static void null_encrypt(void *ctx, u8 *dst, const u8 *src)
-{ }
-
-static void null_decrypt(void *ctx, u8 *dst, const u8 *src)
-{ }
+static void null_crypt(void *ctx, u8 *dst, const u8 *src)
+{
+	memcpy(dst, src, NULL_BLOCK_SIZE);
+}
 
 static struct crypto_alg compress_null = {
 	.cra_name		=	"compress_null",
@@ -62,7 +64,7 @@ static struct crypto_alg compress_null = {
 	.cra_list		=       LIST_HEAD_INIT(compress_null.cra_list),
 	.cra_u			=	{ .compress = {
 	.coa_compress 		=	null_compress,
-	.coa_decompress		=	null_decompress } }
+	.coa_decompress		=	null_compress } }
 };
 
 static struct crypto_alg digest_null = {
@@ -90,8 +92,8 @@ static struct crypto_alg cipher_null = {
 	.cia_min_keysize	=	NULL_KEY_SIZE,
 	.cia_max_keysize	=	NULL_KEY_SIZE,
 	.cia_setkey		= 	null_setkey,
-	.cia_encrypt		=	null_encrypt,
-	.cia_decrypt		=	null_decrypt } }
+	.cia_encrypt		=	null_crypt,
+	.cia_decrypt		=	null_crypt } }
 };
 
 MODULE_ALIAS("compress_null");

drivers/base/Makefile

 # Makefile for the Linux device tree
 
-obj-y			:= core.o sys.o interface.o bus.o \
+obj-y			:= core.o sys.o bus.o \
 			   driver.o class.o class_simple.o platform.o \
 			   cpu.o firmware.o init.o map.o dmapool.o \
 			   attribute_container.o transport_class.o

drivers/base/bus.c

@@ -390,7 +390,6 @@ void device_release_driver(struct device * dev)
 		sysfs_remove_link(&drv->kobj, kobject_name(&dev->kobj));
 		sysfs_remove_link(&dev->kobj, "driver");
 		list_del_init(&dev->driver_list);
-		device_detach_shutdown(dev);
 		if (drv->remove)
 			drv->remove(dev);
 		dev->driver = NULL;

drivers/base/core.c

@@ -31,8 +31,6 @@ int (*platform_notify_remove)(struct device * dev) = NULL;
 #define to_dev(obj) container_of(obj, struct device, kobj)
 #define to_dev_attr(_attr) container_of(_attr, struct device_attribute, attr)
 
-extern struct attribute * dev_default_attrs[];
-
 static ssize_t
 dev_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
 {
@@ -89,7 +87,6 @@ static void device_release(struct kobject * kobj)
 static struct kobj_type ktype_device = {
 	.release	= device_release,
 	.sysfs_ops	= &dev_sysfs_ops,
-	.default_attrs	= dev_default_attrs,
 };
 
 

drivers/base/interface.c

-/*
- * drivers/base/interface.c - common driverfs interface that's exported to
- * 	the world for all devices.
- *
- * Copyright (c) 2002-3 Patrick Mochel
- * Copyright (c) 2002-3 Open Source Development Labs
- *
- * This file is released under the GPLv2
- *
- */
-
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/stat.h>
-#include <linux/string.h>
-
-/**
- *	detach_state - control the default power state for the device.
- *
- *	This is the state the device enters when it's driver module is
- *	unloaded. The value is an unsigned integer, in the range of 0-4.
- *	'0' indicates 'On', so no action will be taken when the driver is
- *	unloaded. This is the default behavior.
- *	'4' indicates 'Off', meaning the driver core will call the driver's
- *	shutdown method to quiesce the device.
- *	1-3 indicate a low-power state for the device to enter via the
- *	driver's suspend method.
- */
-
-static ssize_t detach_show(struct device * dev, char * buf)
-{
-	return sprintf(buf, "%u\n", dev->detach_state);
-}
-
-static ssize_t detach_store(struct device * dev, const char * buf, size_t n)
-{
-	u32 state;
-	state = simple_strtoul(buf, NULL, 10);
-	if (state > 4)
-		return -EINVAL;
-	dev->detach_state = state;
-	return n;
-}
-
-static DEVICE_ATTR(detach_state, 0644, detach_show, detach_store);
-
-
-struct attribute * dev_default_attrs[] = {
-	&dev_attr_detach_state.attr,
-	NULL,
-};

drivers/base/power/power.h

-
-
-enum {
-	DEVICE_PM_ON,
-	DEVICE_PM1,
-	DEVICE_PM2,
-	DEVICE_PM3,
-	DEVICE_PM_OFF,
-};
-
 /*
  * shutdown.c
  */
 
-extern int device_detach_shutdown(struct device *);
 extern void device_shutdown(void);
 
 

drivers/base/power/resume.c

@@ -22,8 +22,17 @@ extern int sysdev_resume(void);
 
 int resume_device(struct device * dev)
 {
-	if (dev->bus && dev->bus->resume)
+	if (dev->power.pm_parent
+			&& dev->power.pm_parent->power.power_state) {
+		dev_err(dev, "PM: resume from %d, parent %s still %d\n",
+			dev->power.power_state,
+			dev->power.pm_parent->bus_id,
+			dev->power.pm_parent->power.power_state);
+	}
+	if (dev->bus && dev->bus->resume) {
+		dev_dbg(dev,"resuming\n");
 		return dev->bus->resume(dev);
+	}
 	return 0;
 }
 

drivers/base/power/shutdown.c

@@ -19,20 +19,6 @@
 extern struct subsystem devices_subsys;
 
 
-int device_detach_shutdown(struct device * dev)
-{
-	if (!dev->detach_state)
-		return 0;
-
-	if (dev->detach_state == DEVICE_PM_OFF) {
-		if (dev->driver && dev->driver->shutdown)
-			dev->driver->shutdown(dev);
-		return 0;
-	}
-	return dpm_runtime_suspend(dev, dev->detach_state);
-}
-
-
 /**
  * We handle system devices differently - we suspend and shut them
  * down last and resume them first. That way, we don't do anything stupid like
@@ -52,13 +38,12 @@ void device_shutdown(void)
 	struct device * dev;
 
 	down_write(&devices_subsys.rwsem);
-	list_for_each_entry_reverse(dev, &devices_subsys.kset.list, kobj.entry) {
-		pr_debug("shutting down %s: ", dev->bus_id);
+	list_for_each_entry_reverse(dev, &devices_subsys.kset.list,
+				kobj.entry) {
 		if (dev->driver && dev->driver->shutdown) {
-			pr_debug("Ok\n");
+			dev_dbg(dev, "shutdown\n");
 			dev->driver->shutdown(dev);
-		} else
-			pr_debug("Ignored.\n");
+		}
 	}
 	up_write(&devices_subsys.rwsem);
 

drivers/base/power/suspend.c

@@ -39,12 +39,25 @@ int suspend_device(struct device * dev, pm_message_t state)
 {
 	int error = 0;
 
-	dev_dbg(dev, "suspending\n");
+	if (dev->power.power_state) {
+		dev_dbg(dev, "PM: suspend %d-->%d\n",
+			dev->power.power_state, state);
+	}
+	if (dev->power.pm_parent
+			&& dev->power.pm_parent->power.power_state) {
+		dev_err(dev,
+			"PM: suspend %d->%d, parent %s already %d\n",
+			dev->power.power_state, state,
+			dev->power.pm_parent->bus_id,
+			dev->power.pm_parent->power.power_state);
+	}
 
 	dev->power.prev_state = dev->power.power_state;
 
-	if (dev->bus && dev->bus->suspend && !dev->power.power_state)
+	if (dev->bus && dev->bus->suspend && !dev->power.power_state) {
+		dev_dbg(dev, "suspending\n");
 		error = dev->bus->suspend(dev, state);
+	}
 
 	return error;
 }

drivers/block/pktcdvd.c

@@ -914,8 +914,10 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
 		bio = node->bio;
 		zone = ZONE(bio->bi_sector, pd);
 		list_for_each_entry(p, &pd->cdrw.pkt_active_list, list) {
-			if (p->sector == zone)
+			if (p->sector == zone) {
+				bio = NULL;
 				goto try_next_bio;
+			}
 		}
 		break;
 try_next_bio:

drivers/char/raw.c

@@ -122,7 +122,7 @@ raw_ioctl(struct inode *inode, struct file *filp,
 {
 	struct block_device *bdev = filp->private_data;
 
-	return blkdev_ioctl(bdev->bd_inode, filp, command, arg);
+	return blkdev_ioctl(bdev->bd_inode, NULL, command, arg);
 }
 
 static void bind_device(struct raw_config_request *rq)

drivers/char/watchdog/i8xx_tco.c

@@ -382,6 +382,7 @@ static struct pci_device_id i8xx_tco_pci_tbl[] = {
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_2,	PCI_ANY_ID, PCI_ANY_ID, },
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0,	PCI_ANY_ID, PCI_ANY_ID, },
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1,	PCI_ANY_ID, PCI_ANY_ID, },
+	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1,	PCI_ANY_ID, PCI_ANY_ID, },
 	{ 0, },			/* End of list */
 };
 MODULE_DEVICE_TABLE (pci, i8xx_tco_pci_tbl);

drivers/ide/ide-proc.c

@@ -516,6 +516,6 @@ void proc_ide_create(void)
 
 void proc_ide_destroy(void)
 {
-	remove_proc_entry("ide/drivers", proc_ide_root);
+	remove_proc_entry("drivers", proc_ide_root);
 	remove_proc_entry("ide", NULL);
 }

drivers/ieee1394/Kconfig

@@ -84,11 +84,6 @@ config IEEE1394_PCILYNX
 	  To compile this driver as a module, say M here: the
 	  module will be called pcilynx.
 
-# Non-maintained pcilynx options
-# if [ "$CONFIG_IEEE1394_PCILYNX" != "n" ]; then
-#     bool '    Use PCILynx local RAM' CONFIG_IEEE1394_PCILYNX_LOCALRAM
-#     bool '    Support for non-IEEE1394 local ports' CONFIG_IEEE1394_PCILYNX_PORTS
-# fi
 config IEEE1394_OHCI1394
 	tristate "OHCI-1394 support"
 	depends on PCI && IEEE1394

drivers/ieee1394/ieee1394_core.c

@@ -520,7 +520,7 @@ int hpsb_send_packet(struct hpsb_packet *packet)
 
 	if (!packet->no_waiter || packet->expect_response) {
 		atomic_inc(&packet->refcnt);
-		packet->sendtime = jiffies;
+		packet->sendtime = jiffies + 10 * HZ;
 		skb_queue_tail(&host->pending_packet_queue, packet->skb);
 	}
 
@@ -1248,7 +1248,6 @@ EXPORT_SYMBOL(hpsb_make_phypacket);
 EXPORT_SYMBOL(hpsb_make_isopacket);
 EXPORT_SYMBOL(hpsb_read);
 EXPORT_SYMBOL(hpsb_write);
-EXPORT_SYMBOL(hpsb_lock);
 EXPORT_SYMBOL(hpsb_packet_success);
 
 /** highlevel.c **/

drivers/ieee1394/ieee1394_transactions.c

@@ -535,6 +535,7 @@ int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
         return retval;
 }
 
+#if 0
 
 int hpsb_lock(struct hpsb_host *host, nodeid_t node, unsigned int generation,
 	      u64 addr, int extcode, quadlet_t *data, quadlet_t arg)
@@ -599,3 +600,5 @@ int hpsb_send_gasp(struct hpsb_host *host, int channel, unsigned int generation,
 
 	return retval;
 }
+
+#endif  /*  0  */

drivers/ieee1394/ieee1394_transactions.h

@@ -53,12 +53,5 @@ int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation,
 	      u64 addr, quadlet_t *buffer, size_t length);
 int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
 	       u64 addr, quadlet_t *buffer, size_t length);
-int hpsb_lock(struct hpsb_host *host, nodeid_t node, unsigned int generation,
-	      u64 addr, int extcode, quadlet_t *data, quadlet_t arg);
-int hpsb_lock64(struct hpsb_host *host, nodeid_t node, unsigned int generation,
-		u64 addr, int extcode, octlet_t *data, octlet_t arg);
-int hpsb_send_gasp(struct hpsb_host *host, int channel, unsigned int generation,
-                   quadlet_t *buffer, size_t length, u32 specifier_id,
-                   unsigned int version);
 
 #endif /* _IEEE1394_TRANSACTIONS_H */

drivers/ieee1394/nodemgr.c

@@ -1005,8 +1005,7 @@ static struct unit_directory *nodemgr_process_unit_directory
 	return ud;
 
 unit_directory_error:
-	if (ud != NULL)
-		kfree(ud);
+	kfree(ud);
 	return NULL;
 }
 

drivers/ieee1394/ohci1394.c

@@ -2931,7 +2931,7 @@ static void free_dma_rcv_ctx(struct dma_rcv_ctx *d)
 		kfree(d->prg_cpu);
 		kfree(d->prg_bus);
 	}
-	if (d->spb) kfree(d->spb);
+	kfree(d->spb);
 
 	/* Mark this context as freed. */
 	d->ohci = NULL;

drivers/ieee1394/ohci1394.h

@@ -236,6 +236,9 @@ struct ti_ohci {
 
 static inline int cross_bound(unsigned long addr, unsigned int size)
 {
+	if (size == 0)
+		return 0;
+
 	if (size > PAGE_SIZE)
 		return 1;
 

drivers/ieee1394/pcilynx.c

@@ -43,6 +43,7 @@
 #include <linux/fs.h>
 #include <linux/poll.h>
 #include <linux/kdev_t.h>
+#include <linux/dma-mapping.h>
 #include <asm/byteorder.h>
 #include <asm/atomic.h>
 #include <asm/io.h>
@@ -834,327 +835,6 @@ static int lynx_devctl(struct hpsb_host *host, enum devctl_cmd cmd, int arg)
  * IEEE-1394 functionality section END *
  ***************************************/
 
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-/* VFS functions for local bus / aux device access.  Access to those
- * is implemented as a character device instead of block devices
- * because buffers are not wanted for this.  Therefore llseek (from
- * VFS) can be used for these char devices with obvious effects.
- */
-static int mem_open(struct inode*, struct file*);
-static int mem_release(struct inode*, struct file*);
-static unsigned int aux_poll(struct file*, struct poll_table_struct*);
-static loff_t mem_llseek(struct file*, loff_t, int);
-static ssize_t mem_read (struct file*, char*, size_t, loff_t*);
-static ssize_t mem_write(struct file*, const char*, size_t, loff_t*);
-
-
-static struct file_operations aux_ops = {
-	.owner =	THIS_MODULE,
-        .read =         mem_read,
-        .write =        mem_write,
-        .poll =         aux_poll,
-        .llseek =       mem_llseek,
-        .open =         mem_open,
-        .release =      mem_release,
-};
-
-
-static void aux_setup_pcls(struct ti_lynx *lynx)
-{
-        struct ti_pcl pcl;
-
-        pcl.next = PCL_NEXT_INVALID;
-        pcl.user_data = pcl_bus(lynx, lynx->dmem_pcl);
-        put_pcl(lynx, lynx->dmem_pcl, &pcl);
-}
-
-static int mem_open(struct inode *inode, struct file *file)
-{
-        int cid = iminor(inode);
-        enum { t_rom, t_aux, t_ram } type;
-        struct memdata *md;
-
-        if (cid < PCILYNX_MINOR_AUX_START) {
-                /* just for completeness */
-                return -ENXIO;
-        } else if (cid < PCILYNX_MINOR_ROM_START) {
-                cid -= PCILYNX_MINOR_AUX_START;
-                if (cid >= num_of_cards || !cards[cid].aux_port)
-                        return -ENXIO;
-                type = t_aux;
-        } else if (cid < PCILYNX_MINOR_RAM_START) {
-                cid -= PCILYNX_MINOR_ROM_START;
-                if (cid >= num_of_cards || !cards[cid].local_rom)
-                        return -ENXIO;
-                type = t_rom;
-        } else {
-                /* WARNING: Know what you are doing when opening RAM.
-                 * It is currently used inside the driver! */
-                cid -= PCILYNX_MINOR_RAM_START;
-                if (cid >= num_of_cards || !cards[cid].local_ram)
-                        return -ENXIO;
-                type = t_ram;
-        }
-
-        md = (struct memdata *)kmalloc(sizeof(struct memdata), SLAB_KERNEL);
-        if (md == NULL)
-                return -ENOMEM;
-
-        md->lynx = &cards[cid];
-        md->cid = cid;
-
-        switch (type) {
-        case t_rom:
-                md->type = rom;
-                break;
-        case t_ram:
-                md->type = ram;
-                break;
-        case t_aux:
-                atomic_set(&md->aux_intr_last_seen,
-                           atomic_read(&cards[cid].aux_intr_seen));
-                md->type = aux;
-                break;
-        }
-
-        file->private_data = md;
-
-        return 0;
-}
-
-static int mem_release(struct inode *inode, struct file *file)
-{
-        kfree(file->private_data);
-        return 0;
-}
-
-static unsigned int aux_poll(struct file *file, poll_table *pt)
-{
-        struct memdata *md = (struct memdata *)file->private_data;
-        int cid = md->cid;
-        unsigned int mask;
-
-        /* reading and writing is always allowed */
-        mask = POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM;
-
-        if (md->type == aux) {
-                poll_wait(file, &cards[cid].aux_intr_wait, pt);
-
-                if (atomic_read(&md->aux_intr_last_seen)
-                    != atomic_read(&cards[cid].aux_intr_seen)) {
-                        mask |= POLLPRI;
-                        atomic_inc(&md->aux_intr_last_seen);
-                }
-        }
-
-        return mask;
-}
-
-loff_t mem_llseek(struct file *file, loff_t offs, int orig)
-{
-        loff_t newoffs;
-
-        switch (orig) {
-        case 0:
-                newoffs = offs;
-                break;
-        case 1:
-                newoffs = offs + file->f_pos;
-                break;
-        case 2:
-                newoffs = PCILYNX_MAX_MEMORY + 1 + offs;
-                break;
-        default:
-                return -EINVAL;
-        }
-
-        if (newoffs < 0 || newoffs > PCILYNX_MAX_MEMORY + 1) return -EINVAL;
-
-        file->f_pos = newoffs;
-        return newoffs;
-}
-
-/*
- * do not DMA if count is too small because this will have a serious impact
- * on performance - the value 2400 was found by experiment and may not work
- * everywhere as good as here - use mem_mindma option for modules to change
- */
-static short mem_mindma = 2400;
-module_param(mem_mindma, short, 0444);
-MODULE_PARM_DESC(mem_mindma, "Minimum amount of data required to use DMA");
-
-static ssize_t mem_dmaread(struct memdata *md, u32 physbuf, ssize_t count,
-                           int offset)
-{
-        pcltmp_t pcltmp;
-        struct ti_pcl *pcl;
-        size_t retval;
-        int i;
-        DECLARE_WAITQUEUE(wait, current);
-
-        count &= ~3;
-        count = min(count, 53196);
-        retval = count;
-
-        if (reg_read(md->lynx, DMA_CHAN_CTRL(CHANNEL_LOCALBUS))
-            & DMA_CHAN_CTRL_BUSY) {
-                PRINT(KERN_WARNING, md->lynx->id, "DMA ALREADY ACTIVE!");
-        }
-
-        reg_write(md->lynx, LBUS_ADDR, md->type | offset);
-
-        pcl = edit_pcl(md->lynx, md->lynx->dmem_pcl, &pcltmp);
-        pcl->buffer[0].control = PCL_CMD_LBUS_TO_PCI | min(count, 4092);
-        pcl->buffer[0].pointer = physbuf;
-        count -= 4092;
-
-        i = 0;
-        while (count > 0) {
-                i++;
-                pcl->buffer[i].control = min(count, 4092);
-                pcl->buffer[i].pointer = physbuf + i * 4092;
-                count -= 4092;
-        }
-        pcl->buffer[i].control |= PCL_LAST_BUFF;
-        commit_pcl(md->lynx, md->lynx->dmem_pcl, &pcltmp);
-
-        set_current_state(TASK_INTERRUPTIBLE);
-        add_wait_queue(&md->lynx->mem_dma_intr_wait, &wait);
-        run_sub_pcl(md->lynx, md->lynx->dmem_pcl, 2, CHANNEL_LOCALBUS);
-
-        schedule();
-        while (reg_read(md->lynx, DMA_CHAN_CTRL(CHANNEL_LOCALBUS))
-               & DMA_CHAN_CTRL_BUSY) {
-                if (signal_pending(current)) {
-                        retval = -EINTR;
-                        break;
-                }
-                schedule();
-        }
-
-        reg_write(md->lynx, DMA_CHAN_CTRL(CHANNEL_LOCALBUS), 0);
-        remove_wait_queue(&md->lynx->mem_dma_intr_wait, &wait);
-
-        if (reg_read(md->lynx, DMA_CHAN_CTRL(CHANNEL_LOCALBUS))
-            & DMA_CHAN_CTRL_BUSY) {
-                PRINT(KERN_ERR, md->lynx->id, "DMA STILL ACTIVE!");
-        }
-
-        return retval;
-}
-
-static ssize_t mem_read(struct file *file, char *buffer, size_t count,
-                        loff_t *offset)
-{
-        struct memdata *md = (struct memdata *)file->private_data;
-        ssize_t bcount;
-        size_t alignfix;
-	loff_t off = *offset; /* avoid useless 64bit-arithmetic */
-        ssize_t retval;
-        void *membase;
-
-        if ((off + count) > PCILYNX_MAX_MEMORY+1) {
-                count = PCILYNX_MAX_MEMORY+1 - off;
-        }
-        if (count == 0 || off > PCILYNX_MAX_MEMORY) {
-                return -ENOSPC;
-        }
-
-        switch (md->type) {
-        case rom:
-                membase = md->lynx->local_rom;
-                break;
-        case ram:
-                membase = md->lynx->local_ram;
-                break;
-        case aux:
-                membase = md->lynx->aux_port;
-                break;
-        default:
-                panic("pcilynx%d: unsupported md->type %d in %s",
-                      md->lynx->id, md->type, __FUNCTION__);
-        }
-
-        down(&md->lynx->mem_dma_mutex);
-
-        if (count < mem_mindma) {
-                memcpy_fromio(md->lynx->mem_dma_buffer, membase+off, count);
-                goto out;
-        }
-
-        bcount = count;
-        alignfix = 4 - (off % 4);
-        if (alignfix != 4) {
-                if (bcount < alignfix) {
-                        alignfix = bcount;
-                }
-                memcpy_fromio(md->lynx->mem_dma_buffer, membase+off,
-                              alignfix);
-                if (bcount == alignfix) {
-                        goto out;
-                }
-                bcount -= alignfix;
-                off += alignfix;
-        }
-
-        while (bcount >= 4) {
-                retval = mem_dmaread(md, md->lynx->mem_dma_buffer_dma
-                                     + count - bcount, bcount, off);
-                if (retval < 0) return retval;
-
-                bcount -= retval;
-                off += retval;
-        }
-
-        if (bcount) {
-                memcpy_fromio(md->lynx->mem_dma_buffer + count - bcount,
-                              membase+off, bcount);
-        }
-
- out:
-        retval = copy_to_user(buffer, md->lynx->mem_dma_buffer, count);
-        up(&md->lynx->mem_dma_mutex);
-
-	if (retval) return -EFAULT;
-        *offset += count;
-        return count;
-}
-
-
-static ssize_t mem_write(struct file *file, const char *buffer, size_t count,
-                         loff_t *offset)
-{
-        struct memdata *md = (struct memdata *)file->private_data;
-
-        if (((*offset) + count) > PCILYNX_MAX_MEMORY+1) {
-                count = PCILYNX_MAX_MEMORY+1 - *offset;
-        }
-        if (count == 0 || *offset > PCILYNX_MAX_MEMORY) {
-                return -ENOSPC;
-        }
-
-        /* FIXME: dereferencing pointers to PCI mem doesn't work everywhere */
-        switch (md->type) {
-        case aux:
-		if (copy_from_user(md->lynx->aux_port+(*offset), buffer, count))
-			return -EFAULT;
-                break;
-        case ram:
-		if (copy_from_user(md->lynx->local_ram+(*offset), buffer, count))
-			return -EFAULT;
-                break;
-        case rom:
-                /* the ROM may be writeable */
-		if (copy_from_user(md->lynx->local_rom+(*offset), buffer, count))
-			return -EFAULT;
-                break;
-        }
-
-        file->f_pos += count;
-        return count;
-}
-#endif /* CONFIG_IEEE1394_PCILYNX_PORTS */
-
 
 /********************************************************
  * Global stuff (interrupt handler, init/shutdown code) *
@@ -1181,18 +861,6 @@ static irqreturn_t lynx_irq_handler(int irq, void *dev_id,
         reg_write(lynx, LINK_INT_STATUS, linkint);
         reg_write(lynx, PCI_INT_STATUS, intmask);
 
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-        if (intmask & PCI_INT_AUX_INT) {
-                atomic_inc(&lynx->aux_intr_seen);
-                wake_up_interruptible(&lynx->aux_intr_wait);
-        }
-
-        if (intmask & PCI_INT_DMA_HLT(CHANNEL_LOCALBUS)) {
-                wake_up_interruptible(&lynx->mem_dma_intr_wait);
-        }
-#endif
-
-
         if (intmask & PCI_INT_1394) {
                 if (linkint & LINK_INT_PHY_TIMEOUT) {
                         PRINT(KERN_INFO, lynx->id, "PHY timeout occurred");
@@ -1484,15 +1152,9 @@ static void remove_card(struct pci_dev *dev)
                 pci_free_consistent(lynx->dev, PAGE_SIZE, lynx->rcv_page,
                                     lynx->rcv_page_dma);
         case have_aux_buf:
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-                pci_free_consistent(lynx->dev, 65536, lynx->mem_dma_buffer,
-                                    lynx->mem_dma_buffer_dma);
-#endif
         case have_pcl_mem:
-#ifndef CONFIG_IEEE1394_PCILYNX_LOCALRAM
                 pci_free_consistent(lynx->dev, LOCALRAM_SIZE, lynx->pcl_mem,
                                     lynx->pcl_mem_dma);
-#endif
         case clear:
                 /* do nothing - already freed */
                 ;
@@ -1524,7 +1186,7 @@ static int __devinit add_card(struct pci_dev *dev,
 
         error = -ENXIO;
 
-        if (pci_set_dma_mask(dev, 0xffffffff))
+        if (pci_set_dma_mask(dev, DMA_32BIT_MASK))
                 FAIL("DMA address limits not supported for PCILynx hardware");
         if (pci_enable_device(dev))
                 FAIL("failed to enable PCILynx hardware");
@@ -1546,7 +1208,6 @@ static int __devinit add_card(struct pci_dev *dev,
         spin_lock_init(&lynx->lock);
         spin_lock_init(&lynx->phy_reg_lock);
 
-#ifndef CONFIG_IEEE1394_PCILYNX_LOCALRAM
         lynx->pcl_mem = pci_alloc_consistent(dev, LOCALRAM_SIZE,
                                              &lynx->pcl_mem_dma);
 
@@ -1558,16 +1219,6 @@ static int __devinit add_card(struct pci_dev *dev,
         } else {
                 FAIL("failed to allocate PCL memory area");
         }
-#endif
-
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-        lynx->mem_dma_buffer = pci_alloc_consistent(dev, 65536,
-                                                    &lynx->mem_dma_buffer_dma);
-        if (lynx->mem_dma_buffer == NULL) {
-                FAIL("failed to allocate DMA buffer for aux");
-        }
-        lynx->state = have_aux_buf;
-#endif
 
         lynx->rcv_page = pci_alloc_consistent(dev, PAGE_SIZE,
                                               &lynx->rcv_page_dma);
@@ -1597,13 +1248,6 @@ static int __devinit add_card(struct pci_dev *dev,
                 FAIL("failed to remap registers - card not accessible");
         }
 
-#ifdef CONFIG_IEEE1394_PCILYNX_LOCALRAM
-        if (lynx->local_ram == NULL) {
-                FAIL("failed to remap local RAM which is required for "
-                     "operation");
-        }
-#endif
-
         reg_set_bits(lynx, MISC_CONTROL, MISC_CONTROL_SWRESET);
         /* Fix buggy cards with autoboot pin not tied low: */
         reg_write(lynx, DMA0_CHAN_CTRL, 0);
@@ -1624,13 +1268,6 @@ static int __devinit add_card(struct pci_dev *dev,
 
         /* alloc_pcl return values are not checked, it is expected that the
          * provided PCL space is sufficient for the initial allocations */
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-        if (lynx->aux_port != NULL) {
-                lynx->dmem_pcl = alloc_pcl(lynx);
-                aux_setup_pcls(lynx);
-                sema_init(&lynx->mem_dma_mutex, 1);
-        }
-#endif
         lynx->rcv_pcl = alloc_pcl(lynx);
         lynx->rcv_pcl_start = alloc_pcl(lynx);
         lynx->async.pcl = alloc_pcl(lynx);
@@ -1647,12 +1284,6 @@ static int __devinit add_card(struct pci_dev *dev,
 
         reg_write(lynx, PCI_INT_ENABLE, PCI_INT_DMA_ALL);
 
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-        reg_set_bits(lynx, PCI_INT_ENABLE, PCI_INT_AUX_INT);
-        init_waitqueue_head(&lynx->mem_dma_intr_wait);
-        init_waitqueue_head(&lynx->aux_intr_wait);
-#endif
-
 	tasklet_init(&lynx->iso_rcv.tq, (void (*)(unsigned long))iso_rcv_bh,
 		     (unsigned long)lynx);
 
@@ -1944,37 +1575,18 @@ static int __init pcilynx_init(void)
 {
         int ret;
 
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-        if (register_chrdev(PCILYNX_MAJOR, PCILYNX_DRIVER_NAME, &aux_ops)) {
-                PRINT_G(KERN_ERR, "allocation of char major number %d failed",
-                        PCILYNX_MAJOR);
-                return -EBUSY;
-        }
-#endif
-
         ret = pci_register_driver(&lynx_pci_driver);
         if (ret < 0) {
                 PRINT_G(KERN_ERR, "PCI module init failed");
-                goto free_char_dev;
+                return ret;
         }
 
         return 0;
-
- free_char_dev:
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-        unregister_chrdev(PCILYNX_MAJOR, PCILYNX_DRIVER_NAME);
-#endif
-
-        return ret;
 }
 
 static void __exit pcilynx_cleanup(void)
 {
         pci_unregister_driver(&lynx_pci_driver);
-
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-        unregister_chrdev(PCILYNX_MAJOR, PCILYNX_DRIVER_NAME);
-#endif
 }
 
 

drivers/ieee1394/pcilynx.h

@@ -55,16 +55,6 @@ struct ti_lynx {
         void __iomem *aux_port;
 	quadlet_t bus_info_block[5];
 
-#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
-        atomic_t aux_intr_seen;
-        wait_queue_head_t aux_intr_wait;
-
-        void *mem_dma_buffer;
-        dma_addr_t mem_dma_buffer_dma;
-        struct semaphore mem_dma_mutex;
-        wait_queue_head_t mem_dma_intr_wait;
-#endif
-
         /*
          * use local RAM of LOCALRAM_SIZE bytes for PCLs, which allows for
          * LOCALRAM_SIZE * 8 PCLs (each sized 128 bytes);
@@ -72,11 +62,9 @@ struct ti_lynx {
          */
         u8 pcl_bmap[LOCALRAM_SIZE / 1024];
 
-#ifndef CONFIG_IEEE1394_PCILYNX_LOCALRAM
 	/* point to PCLs memory area if needed */
 	void *pcl_mem;
         dma_addr_t pcl_mem_dma;
-#endif
 
         /* PCLs for local mem / aux transfers */
         pcl_t dmem_pcl;
@@ -378,39 +366,6 @@ struct ti_pcl {
 #define pcloffs(MEMBER) (offsetof(struct ti_pcl, MEMBER))
 
 
-#ifdef CONFIG_IEEE1394_PCILYNX_LOCALRAM
-
-static inline void put_pcl(const struct ti_lynx *lynx, pcl_t pclid,
-                           const struct ti_pcl *pcl)
-{
-        int i;
-        u32 *in = (u32 *)pcl;
-        u32 *out = (u32 *)(lynx->local_ram + pclid * sizeof(struct ti_pcl));
-
-        for (i = 0; i < 32; i++, out++, in++) {
-                writel(*in, out);
-        }
-}
-
-static inline void get_pcl(const struct ti_lynx *lynx, pcl_t pclid,
-                           struct ti_pcl *pcl)
-{
-        int i;
-        u32 *out = (u32 *)pcl;
-        u32 *in = (u32 *)(lynx->local_ram + pclid * sizeof(struct ti_pcl));
-
-        for (i = 0; i < 32; i++, out++, in++) {
-                *out = readl(in);
-        }
-}
-
-static inline u32 pcl_bus(const struct ti_lynx *lynx, pcl_t pclid)
-{
-        return pci_resource_start(lynx->dev, 1) + pclid * sizeof(struct ti_pcl);
-}
-
-#else /* CONFIG_IEEE1394_PCILYNX_LOCALRAM */
-
 static inline void put_pcl(const struct ti_lynx *lynx, pcl_t pclid,
                            const struct ti_pcl *pcl)
 {
@@ -431,10 +386,8 @@ static inline u32 pcl_bus(const struct ti_lynx *lynx, pcl_t pclid)
         return lynx->pcl_mem_dma + pclid * sizeof(struct ti_pcl);
 }
 
-#endif /* CONFIG_IEEE1394_PCILYNX_LOCALRAM */
-
 
-#if defined (CONFIG_IEEE1394_PCILYNX_LOCALRAM) || defined (__BIG_ENDIAN)
+#if defined (__BIG_ENDIAN)
 typedef struct ti_pcl pcltmp_t;
 
 static inline struct ti_pcl *edit_pcl(const struct ti_lynx *lynx, pcl_t pclid,

drivers/ieee1394/video1394.c

@@ -35,6 +35,11 @@
  *
  */
 
+/* Markus Tavenrath <speedygoo@speedygoo.de> :
+   - fixed checks for valid buffer-numbers in video1394_icotl
+   - changed the ways the dma prg's are used, now it's possible to use
+     even a single dma buffer
+*/
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
@@ -112,6 +117,7 @@ struct dma_iso_ctx {
 	struct it_dma_prg **it_prg;
 
 	unsigned int *buffer_status;
+	unsigned int *buffer_prg_assignment;
         struct timeval *buffer_time; /* time when the buffer was received */
 	unsigned int *last_used_cmd; /* For ISO Transmit with
 					variable sized packets only ! */
@@ -180,23 +186,14 @@ static int free_dma_iso_ctx(struct dma_iso_ctx *d)
 		kfree(d->prg_reg);
 	}
 
-	if (d->ir_prg)
-		kfree(d->ir_prg);
-
-	if (d->it_prg)
-		kfree(d->it_prg);
-
-	if (d->buffer_status)
-		kfree(d->buffer_status);
-	if (d->buffer_time)
-		kfree(d->buffer_time);
-	if (d->last_used_cmd)
-		kfree(d->last_used_cmd);
-	if (d->next_buffer)
-		kfree(d->next_buffer);
-
+	kfree(d->ir_prg);
+	kfree(d->it_prg);
+	kfree(d->buffer_status);
+	kfree(d->buffer_prg_assignment);
+	kfree(d->buffer_time);
+	kfree(d->last_used_cmd);
+	kfree(d->next_buffer);
 	list_del(&d->link);
-
 	kfree(d);
 
 	return 0;
@@ -230,7 +227,7 @@ alloc_dma_iso_ctx(struct ti_ohci *ohci, int type, int num_desc,
 	/* Init the regions for easy cleanup */
 	dma_region_init(&d->dma);
 
-	if (dma_region_alloc(&d->dma, d->num_desc * d->buf_size, ohci->dev,
+	if (dma_region_alloc(&d->dma, (d->num_desc - 1) * d->buf_size, ohci->dev,
 			     PCI_DMA_BIDIRECTIONAL)) {
 		PRINT(KERN_ERR, ohci->host->id, "Failed to allocate dma buffer");
 		free_dma_iso_ctx(d);
@@ -342,6 +339,8 @@ alloc_dma_iso_ctx(struct ti_ohci *ohci, int type, int num_desc,
 
 	d->buffer_status = kmalloc(d->num_desc * sizeof(unsigned int),
 				   GFP_KERNEL);
+	d->buffer_prg_assignment = kmalloc(d->num_desc * sizeof(unsigned int),
+				   GFP_KERNEL);
 	d->buffer_time = kmalloc(d->num_desc * sizeof(struct timeval),
 				   GFP_KERNEL);
 	d->last_used_cmd = kmalloc(d->num_desc * sizeof(unsigned int),
@@ -354,6 +353,11 @@ alloc_dma_iso_ctx(struct ti_ohci *ohci, int type, int num_desc,
 		free_dma_iso_ctx(d);
 		return NULL;
 	}
+	if (d->buffer_prg_assignment == NULL) {
+		PRINT(KERN_ERR, ohci->host->id, "Failed to allocate buffer_prg_assignment");
+		free_dma_iso_ctx(d);
+		return NULL;
+	}
 	if (d->buffer_time == NULL) {
 		PRINT(KERN_ERR, ohci->host->id, "Failed to allocate buffer_time");
 		free_dma_iso_ctx(d);
@@ -370,6 +374,7 @@ alloc_dma_iso_ctx(struct ti_ohci *ohci, int type, int num_desc,
 		return NULL;
 	}
 	memset(d->buffer_status, 0, d->num_desc * sizeof(unsigned int));
+	memset(d->buffer_prg_assignment, 0, d->num_desc * sizeof(unsigned int));
 	memset(d->buffer_time, 0, d->num_desc * sizeof(struct timeval));
 	memset(d->last_used_cmd, 0, d->num_desc * sizeof(unsigned int));
 	memset(d->next_buffer, -1, d->num_desc * sizeof(int));
@@ -379,7 +384,7 @@ alloc_dma_iso_ctx(struct ti_ohci *ohci, int type, int num_desc,
 	PRINT(KERN_INFO, ohci->host->id, "Iso %s DMA: %d buffers "
 	      "of size %d allocated for a frame size %d, each with %d prgs",
 	      (type == OHCI_ISO_RECEIVE) ? "receive" : "transmit",
-	      d->num_desc, d->buf_size, d->frame_size, d->nb_cmd);
+	      d->num_desc - 1, d->buf_size, d->frame_size, d->nb_cmd);
 
 	return d;
 }
@@ -394,11 +399,36 @@ static void reset_ir_status(struct dma_iso_ctx *d, int n)
 	d->ir_prg[n][i].status = cpu_to_le32(d->left_size);
 }
 
+static void reprogram_dma_ir_prg(struct dma_iso_ctx *d, int n, int buffer, int flags)
+{
+	struct dma_cmd *ir_prg = d->ir_prg[n];
+	unsigned long buf = (unsigned long)d->dma.kvirt + buffer * d->buf_size;
+	int i;
+
+	d->buffer_prg_assignment[n] = buffer;
+
+	ir_prg[0].address = cpu_to_le32(dma_region_offset_to_bus(&d->dma, buf -
+  	                        (unsigned long)d->dma.kvirt));
+	ir_prg[1].address = cpu_to_le32(dma_region_offset_to_bus(&d->dma,
+				(buf + 4) - (unsigned long)d->dma.kvirt));
+
+	for (i=2;i<d->nb_cmd-1;i++) {
+		ir_prg[i].address = cpu_to_le32(dma_region_offset_to_bus(&d->dma,
+						(buf+(i-1)*PAGE_SIZE) -
+						(unsigned long)d->dma.kvirt));
+	}
+
+	ir_prg[i].control = cpu_to_le32(DMA_CTL_INPUT_MORE | DMA_CTL_UPDATE |
+				  DMA_CTL_IRQ | DMA_CTL_BRANCH | d->left_size);
+	ir_prg[i].address = cpu_to_le32(dma_region_offset_to_bus(&d->dma,
+				  (buf+(i-1)*PAGE_SIZE) - (unsigned long)d->dma.kvirt));
+}
+
 static void initialize_dma_ir_prg(struct dma_iso_ctx *d, int n, int flags)
 {
 	struct dma_cmd *ir_prg = d->ir_prg[n];
 	struct dma_prog_region *ir_reg = &d->prg_reg[n];
-	unsigned long buf = (unsigned long)d->dma.kvirt + n * d->buf_size;
+	unsigned long buf = (unsigned long)d->dma.kvirt;
 	int i;
 
 	/* the first descriptor will read only 4 bytes */
@@ -508,7 +538,7 @@ static void wakeup_dma_ir_ctx(unsigned long l)
 	for (i = 0; i < d->num_desc; i++) {
 		if (d->ir_prg[i][d->nb_cmd-1].status & cpu_to_le32(0xFFFF0000)) {
 			reset_ir_status(d, i);
-			d->buffer_status[i] = VIDEO1394_BUFFER_READY;
+			d->buffer_status[d->buffer_prg_assignment[i]] = VIDEO1394_BUFFER_READY;
 			do_gettimeofday(&d->buffer_time[i]);
 		}
 	}
@@ -585,7 +615,7 @@ static void wakeup_dma_it_ctx(unsigned long l)
 			int next = d->next_buffer[i];
 			put_timestamp(ohci, d, next);
 			d->it_prg[i][d->last_used_cmd[i]].end.status = 0;
-			d->buffer_status[i] = VIDEO1394_BUFFER_READY;
+			d->buffer_status[d->buffer_prg_assignment[i]] = VIDEO1394_BUFFER_READY;
 		}
 	}
 
@@ -595,11 +625,25 @@ static void wakeup_dma_it_ctx(unsigned long l)
 		wake_up_interruptible(&d->waitq);
 }
 
+static void reprogram_dma_it_prg(struct dma_iso_ctx  *d, int n, int buffer)
+{
+	struct it_dma_prg *it_prg = d->it_prg[n];
+	unsigned long buf = (unsigned long)d->dma.kvirt + buffer * d->buf_size;
+	int i;
+
+	d->buffer_prg_assignment[n] = buffer;
+	for (i=0;i<d->nb_cmd;i++) {
+	  it_prg[i].end.address =
+		cpu_to_le32(dma_region_offset_to_bus(&d->dma,
+			(buf+i*d->packet_size) - (unsigned long)d->dma.kvirt));
+	}
+}
+
 static void initialize_dma_it_prg(struct dma_iso_ctx *d, int n, int sync_tag)
 {
 	struct it_dma_prg *it_prg = d->it_prg[n];
 	struct dma_prog_region *it_reg = &d->prg_reg[n];
-	unsigned long buf = (unsigned long)d->dma.kvirt + n * d->buf_size;
+	unsigned long buf = (unsigned long)d->dma.kvirt;
 	int i;
 	d->last_used_cmd[n] = d->nb_cmd - 1;
 	for (i=0;i<d->nb_cmd;i++) {
@@ -796,7 +840,7 @@ static int __video1394_ioctl(struct file *file,
 
 		if (cmd == VIDEO1394_IOC_LISTEN_CHANNEL) {
 			d = alloc_dma_iso_ctx(ohci, OHCI_ISO_RECEIVE,
-					      v.nb_buffers, v.buf_size,
+					      v.nb_buffers + 1, v.buf_size,
 					      v.channel, 0);
 
 			if (d == NULL) {
@@ -817,7 +861,7 @@ static int __video1394_ioctl(struct file *file,
 		}
 		else {
 			d = alloc_dma_iso_ctx(ohci, OHCI_ISO_TRANSMIT,
-					      v.nb_buffers, v.buf_size,
+					      v.nb_buffers + 1, v.buf_size,
 					      v.channel, v.packet_size);
 
 			if (d == NULL) {
@@ -889,6 +933,7 @@ static int __video1394_ioctl(struct file *file,
 	{
 		struct video1394_wait v;
 		struct dma_iso_ctx *d;
+		int next_prg;
 
 		if (copy_from_user(&v, argp, sizeof(v)))
 			return -EFAULT;
@@ -896,7 +941,7 @@ static int __video1394_ioctl(struct file *file,
 		d = find_ctx(&ctx->context_list, OHCI_ISO_RECEIVE, v.channel);
 		if (d == NULL) return -EFAULT;
 
-		if ((v.buffer<0) || (v.buffer>d->num_desc)) {
+		if ((v.buffer<0) || (v.buffer>=d->num_desc - 1)) {
 			PRINT(KERN_ERR, ohci->host->id,
 			      "Buffer %d out of range",v.buffer);
 			return -EINVAL;
@@ -913,12 +958,14 @@ static int __video1394_ioctl(struct file *file,
 
 		d->buffer_status[v.buffer]=VIDEO1394_BUFFER_QUEUED;
 
+		next_prg = (d->last_buffer + 1) % d->num_desc;
 		if (d->last_buffer>=0)
 			d->ir_prg[d->last_buffer][d->nb_cmd-1].branchAddress =
-				cpu_to_le32((dma_prog_region_offset_to_bus(&d->prg_reg[v.buffer], 0)
+				cpu_to_le32((dma_prog_region_offset_to_bus(&d->prg_reg[next_prg], 0)
 					& 0xfffffff0) | 0x1);
 
-		d->last_buffer = v.buffer;
+		d->last_buffer = next_prg;
+		reprogram_dma_ir_prg(d, d->last_buffer, v.buffer, d->flags);
 
 		d->ir_prg[d->last_buffer][d->nb_cmd-1].branchAddress = 0;
 
@@ -930,7 +977,7 @@ static int __video1394_ioctl(struct file *file,
 
 			/* Tell the controller where the first program is */
 			reg_write(ohci, d->cmdPtr,
-				dma_prog_region_offset_to_bus(&d->prg_reg[v.buffer], 0) | 0x1);
+				  dma_prog_region_offset_to_bus(&d->prg_reg[d->last_buffer], 0) | 0x1);
 
 			/* Run IR context */
 			reg_write(ohci, d->ctrlSet, 0x8000);
@@ -951,7 +998,7 @@ static int __video1394_ioctl(struct file *file,
 	{
 		struct video1394_wait v;
 		struct dma_iso_ctx *d;
-		int i;
+		int i = 0;
 
 		if (copy_from_user(&v, argp, sizeof(v)))
 			return -EFAULT;
@@ -959,7 +1006,7 @@ static int __video1394_ioctl(struct file *file,
 		d = find_ctx(&ctx->context_list, OHCI_ISO_RECEIVE, v.channel);
 		if (d == NULL) return -EFAULT;
 
-		if ((v.buffer<0) || (v.buffer>d->num_desc)) {
+		if ((v.buffer<0) || (v.buffer>d->num_desc - 1)) {
 			PRINT(KERN_ERR, ohci->host->id,
 			      "Buffer %d out of range",v.buffer);
 			return -EINVAL;
@@ -1005,9 +1052,9 @@ static int __video1394_ioctl(struct file *file,
 		 * Look ahead to see how many more buffers have been received
 		 */
 		i=0;
-		while (d->buffer_status[(v.buffer+1)%d->num_desc]==
+		while (d->buffer_status[(v.buffer+1)%(d->num_desc - 1)]==
 		       VIDEO1394_BUFFER_READY) {
-			v.buffer=(v.buffer+1)%d->num_desc;
+			v.buffer=(v.buffer+1)%(d->num_desc - 1);
 			i++;
 		}
 		spin_unlock_irqrestore(&d->lock, flags);
@@ -1023,6 +1070,7 @@ static int __video1394_ioctl(struct file *file,
 		struct video1394_wait v;
 		unsigned int *psizes = NULL;
 		struct dma_iso_ctx *d;
+		int next_prg;
 
 		if (copy_from_user(&v, argp, sizeof(v)))
 			return -EFAULT;
@@ -1030,7 +1078,7 @@ static int __video1394_ioctl(struct file *file,
 		d = find_ctx(&ctx->context_list, OHCI_ISO_TRANSMIT, v.channel);
 		if (d == NULL) return -EFAULT;
 
-		if ((v.buffer<0) || (v.buffer>d->num_desc)) {
+		if ((v.buffer<0) || (v.buffer>=d->num_desc - 1)) {
 			PRINT(KERN_ERR, ohci->host->id,
 			      "Buffer %d out of range",v.buffer);
 			return -EINVAL;
@@ -1056,19 +1104,19 @@ static int __video1394_ioctl(struct file *file,
 
 		spin_lock_irqsave(&d->lock,flags);
 
+		// last_buffer is last_prg
+		next_prg = (d->last_buffer + 1) % d->num_desc;
 		if (d->buffer_status[v.buffer]!=VIDEO1394_BUFFER_FREE) {
 			PRINT(KERN_ERR, ohci->host->id,
 			      "Buffer %d is already used",v.buffer);
 			spin_unlock_irqrestore(&d->lock,flags);
-			if (psizes)
-				kfree(psizes);
+			kfree(psizes);
 			return -EBUSY;
 		}
 
 		if (d->flags & VIDEO1394_VARIABLE_PACKET_SIZE) {
 			initialize_dma_it_prg_var_packet_queue(
-				d, v.buffer, psizes,
-				ohci);
+				d, next_prg, psizes, ohci);
 		}
 
 		d->buffer_status[v.buffer]=VIDEO1394_BUFFER_QUEUED;
@@ -1076,16 +1124,17 @@ static int __video1394_ioctl(struct file *file,
 		if (d->last_buffer >= 0) {
 			d->it_prg[d->last_buffer]
 				[ d->last_used_cmd[d->last_buffer] ].end.branchAddress =
-					cpu_to_le32((dma_prog_region_offset_to_bus(&d->prg_reg[v.buffer],
+					cpu_to_le32((dma_prog_region_offset_to_bus(&d->prg_reg[next_prg],
 						0) & 0xfffffff0) | 0x3);
 
 			d->it_prg[d->last_buffer]
 				[ d->last_used_cmd[d->last_buffer] ].begin.branchAddress =
-					cpu_to_le32((dma_prog_region_offset_to_bus(&d->prg_reg[v.buffer],
+					cpu_to_le32((dma_prog_region_offset_to_bus(&d->prg_reg[next_prg],
 						0) & 0xfffffff0) | 0x3);
-			d->next_buffer[d->last_buffer] = v.buffer;
+			d->next_buffer[d->last_buffer] = (v.buffer + 1) % (d->num_desc - 1);
 		}
-		d->last_buffer = v.buffer;
+		d->last_buffer = next_prg;
+		reprogram_dma_it_prg(d, d->last_buffer, v.buffer);
 		d->next_buffer[d->last_buffer] = -1;
 
 		d->it_prg[d->last_buffer][d->last_used_cmd[d->last_buffer]].end.branchAddress = 0;
@@ -1100,7 +1149,7 @@ static int __video1394_ioctl(struct file *file,
 
 			/* Tell the controller where the first program is */
 			reg_write(ohci, d->cmdPtr,
-				dma_prog_region_offset_to_bus(&d->prg_reg[v.buffer], 0) | 0x3);
+				dma_prog_region_offset_to_bus(&d->prg_reg[next_prg], 0) | 0x3);
 
 			/* Run IT context */
 			reg_write(ohci, d->ctrlSet, 0x8000);
@@ -1116,9 +1165,7 @@ static int __video1394_ioctl(struct file *file,
 			}
 		}
 
-		if (psizes)
-			kfree(psizes);
-
+		kfree(psizes);
 		return 0;
 
 	}
@@ -1133,7 +1180,7 @@ static int __video1394_ioctl(struct file *file,
 		d = find_ctx(&ctx->context_list, OHCI_ISO_TRANSMIT, v.channel);
 		if (d == NULL) return -EFAULT;
 
-		if ((v.buffer<0) || (v.buffer>d->num_desc)) {
+		if ((v.buffer<0) || (v.buffer>=d->num_desc-1)) {
 			PRINT(KERN_ERR, ohci->host->id,
 			      "Buffer %d out of range",v.buffer);
 			return -EINVAL;

drivers/input/keyboard/atkbd.c

@@ -465,8 +465,10 @@ static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int co
 			if (atkbd->softrepeat) return 0;
 
 			i = j = 0;
-			while (i < 32 && period[i] < dev->rep[REP_PERIOD]) i++;
-			while (j < 4 && delay[j] < dev->rep[REP_DELAY]) j++;
+			while (i < 31 && period[i] < dev->rep[REP_PERIOD])
+				i++;
+			while (j < 3 && delay[j] < dev->rep[REP_DELAY])
+				j++;
 			dev->rep[REP_PERIOD] = period[i];
 			dev->rep[REP_DELAY] = delay[j];
 			param[0] = i | (j << 5);

drivers/input/mouse/alps.c

@@ -341,6 +341,8 @@ static int alps_reconnect(struct psmouse *psmouse)
 	unsigned char param[4];
 	int version;
 
+	psmouse_reset(psmouse);
+
 	if (!(priv->i = alps_get_model(psmouse, &version)))
 		return -1;
 
@@ -395,7 +397,7 @@ int alps_init(struct psmouse *psmouse)
 	}
 
 	if (param[0] & 0x04) {
-		printk(KERN_INFO "  Enabling hardware tapping\n");
+		printk(KERN_INFO "alps.c: Enabling hardware tapping\n");
 		if (alps_tap_mode(psmouse, 1))
 			printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
 	}

drivers/input/serio/serio.c

@@ -388,6 +388,24 @@ static ssize_t serio_show_id_extra(struct device *dev, char *buf)
 	return sprintf(buf, "%02x\n", serio->id.extra);
 }
 
+static DEVICE_ATTR(type, S_IRUGO, serio_show_id_type, NULL);
+static DEVICE_ATTR(proto, S_IRUGO, serio_show_id_proto, NULL);
+static DEVICE_ATTR(id, S_IRUGO, serio_show_id_id, NULL);
+static DEVICE_ATTR(extra, S_IRUGO, serio_show_id_extra, NULL);
+
+static struct attribute *serio_device_id_attrs[] = {
+	&dev_attr_type.attr,
+	&dev_attr_proto.attr,
+	&dev_attr_id.attr,
+	&dev_attr_extra.attr,
+	NULL
+};
+
+static struct attribute_group serio_id_attr_group = {
+	.name	= "id",
+	.attrs	= serio_device_id_attrs,
+};
+
 static ssize_t serio_rebind_driver(struct device *dev, const char *buf, size_t count)
 {
 	struct serio *serio = to_serio_port(dev);
@@ -444,10 +462,6 @@ static ssize_t serio_set_bind_mode(struct device *dev, const char *buf, size_t c
 
 static struct device_attribute serio_device_attrs[] = {
 	__ATTR(description, S_IRUGO, serio_show_description, NULL),
-	__ATTR(id_type, S_IRUGO, serio_show_id_type, NULL),
-	__ATTR(id_proto, S_IRUGO, serio_show_id_proto, NULL),
-	__ATTR(id_id, S_IRUGO, serio_show_id_id, NULL),
-	__ATTR(id_extra, S_IRUGO, serio_show_id_extra, NULL),
 	__ATTR(drvctl, S_IWUSR, NULL, serio_rebind_driver),
 	__ATTR(bind_mode, S_IWUSR | S_IRUGO, serio_show_bind_mode, serio_set_bind_mode),
 	__ATTR_NULL
@@ -498,6 +512,7 @@ static void serio_add_port(struct serio *serio)
 	if (serio->start)
 		serio->start(serio);
 	device_add(&serio->dev);
+	sysfs_create_group(&serio->dev.kobj, &serio_id_attr_group);
 	serio->registered = 1;
 }
 
@@ -526,6 +541,7 @@ static void serio_destroy_port(struct serio *serio)
 	}
 
 	if (serio->registered) {
+		sysfs_remove_group(&serio->dev.kobj, &serio_id_attr_group);
 		device_del(&serio->dev);
 		list_del_init(&serio->node);
 		serio->registered = 0;
@@ -779,7 +795,6 @@ static int serio_resume(struct device *dev)
 	struct serio *serio = to_serio_port(dev);
 
 	if (!serio->drv || !serio->drv->reconnect || serio->drv->reconnect(serio)) {
-		serio_disconnect_port(serio);
 		/*
 		 * Driver re-probing can take a while, so better let kseriod
 		 * deal with it.

drivers/input/serio/serport.c

@@ -27,11 +27,15 @@ MODULE_LICENSE("GPL");
 MODULE_ALIAS_LDISC(N_MOUSE);
 
 #define SERPORT_BUSY	1
+#define SERPORT_ACTIVE	2
+#define SERPORT_DEAD	3
 
 struct serport {
 	struct tty_struct *tty;
 	wait_queue_head_t wait;
 	struct serio *serio;
+	struct serio_device_id id;
+	spinlock_t lock;
 	unsigned long flags;
 };
 
@@ -45,11 +49,29 @@ static int serport_serio_write(struct serio *serio, unsigned char data)
 	return -(serport->tty->driver->write(serport->tty, &data, 1) != 1);
 }
 
+static int serport_serio_open(struct serio *serio)
+{
+	struct serport *serport = serio->port_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&serport->lock, flags);
+	set_bit(SERPORT_ACTIVE, &serport->flags);
+	spin_unlock_irqrestore(&serport->lock, flags);
+
+	return 0;
+}
+
+
 static void serport_serio_close(struct serio *serio)
 {
 	struct serport *serport = serio->port_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&serport->lock, flags);
+	clear_bit(SERPORT_ACTIVE, &serport->flags);
+	set_bit(SERPORT_DEAD, &serport->flags);
+	spin_unlock_irqrestore(&serport->lock, flags);
 
-	serport->serio->id.type = 0;
 	wake_up_interruptible(&serport->wait);
 }
 
@@ -61,36 +83,21 @@ static void serport_serio_close(struct serio *serio)
 static int serport_ldisc_open(struct tty_struct *tty)
 {
 	struct serport *serport;
-	struct serio *serio;
-	char name[64];
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	serport = kmalloc(sizeof(struct serport), GFP_KERNEL);
-	serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
-	if (unlikely(!serport || !serio)) {
-		kfree(serport);
-		kfree(serio);
+	serport = kcalloc(1, sizeof(struct serport), GFP_KERNEL);
+	if (!serport)
 		return -ENOMEM;
-	}
 
-	memset(serport, 0, sizeof(struct serport));
-	serport->serio = serio;
-	set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
 	serport->tty = tty;
-	tty->disc_data = serport;
-
-	memset(serio, 0, sizeof(struct serio));
-	strlcpy(serio->name, "Serial port", sizeof(serio->name));
-	snprintf(serio->phys, sizeof(serio->phys), "%s/serio0", tty_name(tty, name));
-	serio->id.type = SERIO_RS232;
-	serio->write = serport_serio_write;
-	serio->close = serport_serio_close;
-	serio->port_data = serport;
-
+	spin_lock_init(&serport->lock);
 	init_waitqueue_head(&serport->wait);
 
+	tty->disc_data = serport;
+	set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+
 	return 0;
 }
 
@@ -100,7 +107,8 @@ static int serport_ldisc_open(struct tty_struct *tty)
 
 static void serport_ldisc_close(struct tty_struct *tty)
 {
-	struct serport *serport = (struct serport*) tty->disc_data;
+	struct serport *serport = (struct serport *) tty->disc_data;
+
 	kfree(serport);
 }
 
@@ -116,9 +124,19 @@ static void serport_ldisc_close(struct tty_struct *tty)
 static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
 {
 	struct serport *serport = (struct serport*) tty->disc_data;
+	unsigned long flags;
 	int i;
+
+	spin_lock_irqsave(&serport->lock, flags);
+
+	if (!test_bit(SERPORT_ACTIVE, &serport->flags))
+		goto out;
+
 	for (i = 0; i < count; i++)
 		serio_interrupt(serport->serio, cp[i], 0, NULL);
+
+out:
+	spin_unlock_irqrestore(&serport->lock, flags);
 }
 
 /*
@@ -141,16 +159,33 @@ static int serport_ldisc_room(struct tty_struct *tty)
 static ssize_t serport_ldisc_read(struct tty_struct * tty, struct file * file, unsigned char __user * buf, size_t nr)
 {
 	struct serport *serport = (struct serport*) tty->disc_data;
+	struct serio *serio;
 	char name[64];
 
 	if (test_and_set_bit(SERPORT_BUSY, &serport->flags))
 		return -EBUSY;
 
+	serport->serio = serio = kcalloc(1, sizeof(struct serio), GFP_KERNEL);
+	if (!serio)
+		return -ENOMEM;
+
+	strlcpy(serio->name, "Serial port", sizeof(serio->name));
+	snprintf(serio->phys, sizeof(serio->phys), "%s/serio0", tty_name(tty, name));
+	serio->id = serport->id;
+	serio->id.type = SERIO_RS232;
+	serio->write = serport_serio_write;
+	serio->open = serport_serio_open;
+	serio->close = serport_serio_close;
+	serio->port_data = serport;
+
 	serio_register_port(serport->serio);
 	printk(KERN_INFO "serio: Serial port %s\n", tty_name(tty, name));
-	wait_event_interruptible(serport->wait, !serport->serio->id.type);
+
+	wait_event_interruptible(serport->wait, test_bit(SERPORT_DEAD, &serport->flags));
 	serio_unregister_port(serport->serio);
+	serport->serio = NULL;
 
+	clear_bit(SERPORT_DEAD, &serport->flags);
 	clear_bit(SERPORT_BUSY, &serport->flags);
 
 	return 0;
@@ -163,16 +198,15 @@ static ssize_t serport_ldisc_read(struct tty_struct * tty, struct file * file, u
 static int serport_ldisc_ioctl(struct tty_struct * tty, struct file * file, unsigned int cmd, unsigned long arg)
 {
 	struct serport *serport = (struct serport*) tty->disc_data;
-	struct serio *serio = serport->serio;
 	unsigned long type;
 
 	if (cmd == SPIOCSTYPE) {
 		if (get_user(type, (unsigned long __user *) arg))
 			return -EFAULT;
 
-		serio->id.proto	= type & 0x000000ff;
-		serio->id.id	= (type & 0x0000ff00) >> 8;
-		serio->id.extra	= (type & 0x00ff0000) >> 16;
+		serport->id.proto = type & 0x000000ff;
+		serport->id.id	  = (type & 0x0000ff00) >> 8;
+		serport->id.extra = (type & 0x00ff0000) >> 16;
 
 		return 0;
 	}
@@ -182,9 +216,13 @@ static int serport_ldisc_ioctl(struct tty_struct * tty, struct file * file, unsi
 
 static void serport_ldisc_write_wakeup(struct tty_struct * tty)
 {
-	struct serport *sp = (struct serport *) tty->disc_data;
+	struct serport *serport = (struct serport *) tty->disc_data;
+	unsigned long flags;
 
-	serio_drv_write_wakeup(sp->serio);
+	spin_lock_irqsave(&serport->lock, flags);
+	if (test_bit(SERPORT_ACTIVE, &serport->flags))
+		serio_drv_write_wakeup(serport->serio);
+	spin_unlock_irqrestore(&serport->lock, flags);
 }
 
 /*

drivers/md/linear.c

@@ -269,9 +269,8 @@ static int linear_make_request (request_queue_t *q, struct bio *bio)
 		 * split it.
 		 */
 		struct bio_pair *bp;
-		bp = bio_split(bio, bio_split_pool, 
-			       (bio->bi_sector + (bio->bi_size >> 9) -
-				(tmp_dev->offset + tmp_dev->size))<<1);
+		bp = bio_split(bio, bio_split_pool,
+			       ((tmp_dev->offset + tmp_dev->size)<<1) - bio->bi_sector);
 		if (linear_make_request(q, &bp->bio1))
 			generic_make_request(&bp->bio1);
 		if (linear_make_request(q, &bp->bio2))

drivers/md/multipath.c

@@ -462,10 +462,6 @@ static int multipath_run (mddev_t *mddev)
 	}
 	memset(conf->multipaths, 0, sizeof(struct multipath_info)*mddev->raid_disks);
 
-	mddev->queue->unplug_fn = multipath_unplug;
-
-	mddev->queue->issue_flush_fn = multipath_issue_flush;
-
 	conf->working_disks = 0;
 	ITERATE_RDEV(mddev,rdev,tmp) {
 		disk_idx = rdev->raid_disk;
@@ -528,6 +524,10 @@ static int multipath_run (mddev_t *mddev)
 	 * Ok, everything is just fine now
 	 */
 	mddev->array_size = mddev->size;
+
+	mddev->queue->unplug_fn = multipath_unplug;
+	mddev->queue->issue_flush_fn = multipath_issue_flush;
+
 	return 0;
 
 out_free_conf:

drivers/md/raid1.c

@@ -1197,10 +1197,6 @@ static int run(mddev_t *mddev)
 	if (!conf->r1bio_pool)
 		goto out_no_mem;
 
-	mddev->queue->unplug_fn = raid1_unplug;
-
-	mddev->queue->issue_flush_fn = raid1_issue_flush;
-
 	ITERATE_RDEV(mddev, rdev, tmp) {
 		disk_idx = rdev->raid_disk;
 		if (disk_idx >= mddev->raid_disks
@@ -1282,6 +1278,9 @@ static int run(mddev_t *mddev)
 	 */
 	mddev->array_size = mddev->size;
 
+	mddev->queue->unplug_fn = raid1_unplug;
+	mddev->queue->issue_flush_fn = raid1_issue_flush;
+
 	return 0;
 
 out_no_mem:

drivers/md/raid10.c

@@ -1639,9 +1639,6 @@ static int run(mddev_t *mddev)
 			mdname(mddev));
 		goto out_free_conf;
 	}
-	mddev->queue->unplug_fn = raid10_unplug;
-
-	mddev->queue->issue_flush_fn = raid10_issue_flush;
 
 	ITERATE_RDEV(mddev, rdev, tmp) {
 		disk_idx = rdev->raid_disk;
@@ -1713,6 +1710,9 @@ static int run(mddev_t *mddev)
 	mddev->array_size = size/2;
 	mddev->resync_max_sectors = size;
 
+	mddev->queue->unplug_fn = raid10_unplug;
+	mddev->queue->issue_flush_fn = raid10_issue_flush;
+
 	/* Calculate max read-ahead size.
 	 * We need to readahead at least twice a whole stripe....
 	 * maybe...

drivers/md/raid5.c

@@ -1620,9 +1620,6 @@ static int run (mddev_t *mddev)
 	atomic_set(&conf->active_stripes, 0);
 	atomic_set(&conf->preread_active_stripes, 0);
 
-	mddev->queue->unplug_fn = raid5_unplug_device;
-	mddev->queue->issue_flush_fn = raid5_issue_flush;
-
 	PRINTK("raid5: run(%s) called.\n", mdname(mddev));
 
 	ITERATE_RDEV(mddev,rdev,tmp) {
@@ -1728,6 +1725,10 @@ memory = conf->max_nr_stripes * (sizeof(struct stripe_head) +
 	}
 
 	/* Ok, everything is just fine now */
+
+	mddev->queue->unplug_fn = raid5_unplug_device;
+	mddev->queue->issue_flush_fn = raid5_issue_flush;
+
 	mddev->array_size =  mddev->size * (mddev->raid_disks - 1);
 	return 0;
 abort:

drivers/md/raid6main.c

@@ -1779,9 +1779,6 @@ static int run (mddev_t *mddev)
 	atomic_set(&conf->active_stripes, 0);
 	atomic_set(&conf->preread_active_stripes, 0);
 
-	mddev->queue->unplug_fn = raid6_unplug_device;
-	mddev->queue->issue_flush_fn = raid6_issue_flush;
-
 	PRINTK("raid6: run(%s) called.\n", mdname(mddev));
 
 	ITERATE_RDEV(mddev,rdev,tmp) {
@@ -1895,6 +1892,9 @@ static int run (mddev_t *mddev)
 
 	/* Ok, everything is just fine now */
 	mddev->array_size =  mddev->size * (mddev->raid_disks - 2);
+
+	mddev->queue->unplug_fn = raid6_unplug_device;
+	mddev->queue->issue_flush_fn = raid6_issue_flush;
 	return 0;
 abort:
 	if (conf) {

drivers/media/common/saa7146_core.c

@@ -23,9 +23,9 @@
 LIST_HEAD(saa7146_devices);
 DECLARE_MUTEX(saa7146_devices_lock);
 
-static int saa7146_num = 0;
+static int saa7146_num;
 
-unsigned int saa7146_debug = 0;
+unsigned int saa7146_debug;
 
 module_param(saa7146_debug, int, 0644);
 MODULE_PARM_DESC(saa7146_debug, "debug level (default: 0)");

drivers/media/dvb/Kconfig

@@ -33,7 +33,7 @@ source "drivers/media/dvb/dibusb/Kconfig"
 source "drivers/media/dvb/cinergyT2/Kconfig"
 
 comment "Supported FlexCopII (B2C2) Adapters"
-	depends on DVB_CORE && PCI
+	depends on DVB_CORE && (PCI || USB)
 source "drivers/media/dvb/b2c2/Kconfig"
 
 comment "Supported BT878 Adapters"

drivers/media/dvb/b2c2/Kconfig

-config DVB_B2C2_SKYSTAR
-	tristate "B2C2/Technisat Air/Sky/CableStar 2 PCI"
-	depends on DVB_CORE && PCI
+config DVB_B2C2_FLEXCOP
+	tristate "Technisat/B2C2 FlexCopII(b) and FlexCopIII adapters"
+	depends on DVB_CORE
 	select DVB_STV0299
 	select DVB_MT352
 	select DVB_MT312
 	select DVB_NXT2002
+	select DVB_STV0297
 	help
-	  Support for the Skystar2 PCI DVB card by Technisat, which
-	  is equipped with the FlexCopII chipset by B2C2, and
-	  for the B2C2/BBTI Air2PC-ATSC card.
+	  Support for the digital TV receiver chip made by B2C2 Inc. included in
+	  Technisats PCI cards and USB boxes.
 
 	  Say Y if you own such a device and want to use it.
 
-config DVB_B2C2_USB
-	tristate "B2C2/Technisat Air/Sky/Cable2PC USB"
-	depends on DVB_CORE && USB && EXPERIMENTAL
+config DVB_B2C2_FLEXCOP_PCI
+	tristate "Technisat/B2C2 Air/Sky/Cable2PC PCI"
+	depends on DVB_B2C2_FLEXCOP && PCI
+	help
+	  Support for the Air/Sky/CableStar2 PCI card (DVB/ATSC) by Technisat/B2C2.
+
+	  Say Y if you own such a device and want to use it.
+
+config DVB_B2C2_FLEXCOP_USB
+	tristate "Technisat/B2C2 Air/Sky/Cable2PC USB"
+	depends on DVB_B2C2_FLEXCOP && USB
+	help
+	  Support for the Air/Sky/Cable2PC USB1.1 box (DVB/ATSC) by Technisat/B2C2,
+
+	  Say Y if you own such a device and want to use it.
+
+config DVB_B2C2_FLEXCOP_DEBUG
+	bool "Enable debug for the B2C2 FlexCop drivers"
+	depends on DVB_B2C2_FLEXCOP
+	help
+	  Say Y if you want to enable the module option to control debug messages
+	  of all B2C2 FlexCop drivers.
+
+config DVB_B2C2_SKYSTAR
+	tristate "B2C2/Technisat Air/Sky/CableStar 2 PCI"
+	depends on DVB_CORE && PCI
 	select DVB_STV0299
 	select DVB_MT352
+	select DVB_MT312
+	select DVB_NXT2002
 	help
-	  Support for the Air/Sky/Cable2PC USB DVB device by B2C2. Currently
-	  the does nothing, but providing basic function for the used usb 
-	  protocol.
+	  Support for the Skystar2 PCI DVB card by Technisat, which
+	  is equipped with the FlexCopII chipset by B2C2, and
+	  for the B2C2/BBTI Air2PC-ATSC card.
 
 	  Say Y if you own such a device and want to use it.
-

drivers/media/dvb/b2c2/Makefile

-obj-b2c2-usb = b2c2-usb-core.o b2c2-common.o
+b2c2-flexcop-objs = flexcop.o flexcop-fe-tuner.o flexcop-i2c.o \
+	flexcop-sram.o flexcop-eeprom.o flexcop-misc.o flexcop-hw-filter.o \
+	flexcop-dma.o
+obj-$(CONFIG_DVB_B2C2_FLEXCOP) += b2c2-flexcop.o
+
+b2c2-flexcop-pci-objs = flexcop-pci.o
+obj-$(CONFIG_DVB_B2C2_FLEXCOP_PCI) += b2c2-flexcop-pci.o
+
+b2c2-flexcop-usb-objs = flexcop-usb.o
+obj-$(CONFIG_DVB_B2C2_FLEXCOP_USB) += b2c2-flexcop-usb.o
 
 obj-$(CONFIG_DVB_B2C2_SKYSTAR) += skystar2.o
-obj-$(CONFIG_DVB_B2C2_USB) + = b2c2-usb.o
 
 EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/

drivers/media/dvb/b2c2/b2c2-usb-core.c

-/*
- * Copyright (C) 2004 Patrick Boettcher <patrick.boettcher@desy.de>,
- *                    Luca Bertagnolio <>,
- *
- * based on information provided by John Jurrius from BBTI, Inc.
- *
- *	This program 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, version 2.
- *
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/usb.h>
-#include <linux/moduleparam.h>
-#include <linux/pci.h>
-#include <linux/version.h>
-
-#include "dmxdev.h"
-#include "dvb_demux.h"
-#include "dvb_filter.h"
-#include "dvb_net.h"
-#include "dvb_frontend.h"
-
-/* debug */
-#define dprintk(level,args...) \
-	    do { if ((debug & level)) { printk(args); } } while (0)
-#define debug_dump(b,l) if (debug) {\
-	int i; deb_xfer("%s: %d > ",__FUNCTION__,l); \
-	for (i = 0; i < l; i++) deb_xfer("%02x ", b[i]); \
-	deb_xfer("\n");\
-}
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debugging level (1=info,ts=2,ctrl=4 (or-able)).");
-
-#define deb_info(args...) dprintk(0x01,args)
-#define deb_ts(args...)   dprintk(0x02,args)
-#define deb_ctrl(args...) dprintk(0x04,args)
-
-/* Version information */
-#define DRIVER_VERSION "0.0"
-#define DRIVER_DESC "Driver for B2C2/Technisat Air/Cable/Sky-2-PC USB devices"
-#define DRIVER_AUTHOR "Patrick Boettcher, patrick.boettcher@desy.de"
-
-/* transfer parameters */
-#define B2C2_USB_FRAMES_PER_ISO		4
-#define B2C2_USB_NUM_ISO_URB		4    /* TODO check out a good value */
-
-#define B2C2_USB_CTRL_PIPE_IN		usb_rcvctrlpipe(b2c2->udev,0)
-#define B2C2_USB_CTRL_PIPE_OUT		usb_sndctrlpipe(b2c2->udev,0)
-#define B2C2_USB_DATA_PIPE			usb_rcvisocpipe(b2c2->udev,0x81)
-
-struct usb_b2c2_usb {
-	struct usb_device *udev;
-	struct usb_interface *uintf;
-
-	u8 *iso_buffer;
-	int buffer_size;
-	dma_addr_t iso_dma_handle;
-	struct urb *iso_urb[B2C2_USB_NUM_ISO_URB];
-};
-
-
-/*
- * USB
- * 10 90 34 12 78 56 04 00
- * usb_control_msg(udev, usb_sndctrlpipe(udev,0),
- * 0x90,
- * 0x10,
- * 0x1234,
- * 0x5678,
- * buf,
- * 4,
- * 5*HZ);
- *
- * extern int usb_control_msg(struct usb_device *dev, unsigned int pipe,
- * __u8 request,
- * __u8 requesttype,
- * __u16 value,
- * __u16 index,
- * void *data,
- * __u16 size,
- * int timeout);
- *
- */
-
-/* request types */
-typedef enum {
-
-/* something is wrong with this part
-	RTYPE_READ_DW         = (1 << 6),
-	RTYPE_WRITE_DW_1      = (3 << 6),
-	RTYPE_READ_V8_MEMORY  = (6 << 6),
-	RTYPE_WRITE_V8_MEMORY = (7 << 6),
-	RTYPE_WRITE_V8_FLASH  = (8 << 6),
-	RTYPE_GENERIC         = (9 << 6),
-*/
-	RTYPE_READ_DW = (3 << 6),
-	RTYPE_WRITE_DW_1 = (1 << 6),
-	
-	RTYPE_READ_V8_MEMORY  = (6 << 6),
-	RTYPE_WRITE_V8_MEMORY = (7 << 6),
-	RTYPE_WRITE_V8_FLASH  = (8 << 6),
-	RTYPE_GENERIC         = (9 << 6),
-} b2c2_usb_request_type_t;
-
-/* request */
-typedef enum {
-	B2C2_USB_WRITE_V8_MEM = 0x04,
-	B2C2_USB_READ_V8_MEM  = 0x05,
-	B2C2_USB_READ_REG     = 0x08,
-	B2C2_USB_WRITE_REG    = 0x0A,
-/*	B2C2_USB_WRITEREGLO   = 0x0A, */
-	B2C2_USB_WRITEREGHI   = 0x0B,
-	B2C2_USB_FLASH_BLOCK  = 0x10,
-	B2C2_USB_I2C_REQUEST  = 0x11,
-	B2C2_USB_UTILITY      = 0x12,
-} b2c2_usb_request_t;
-
-/* function definition for I2C_REQUEST */
-typedef enum {
-	USB_FUNC_I2C_WRITE       = 0x01,
-	USB_FUNC_I2C_MULTIWRITE  = 0x02,
-	USB_FUNC_I2C_READ        = 0x03,
-	USB_FUNC_I2C_REPEATWRITE = 0x04,
-	USB_FUNC_GET_DESCRIPTOR  = 0x05,
-	USB_FUNC_I2C_REPEATREAD  = 0x06,
-/* DKT 020208 - add this to support special case of DiSEqC */
-	USB_FUNC_I2C_CHECKWRITE  = 0x07,
-	USB_FUNC_I2C_CHECKRESULT = 0x08,
-} b2c2_usb_i2c_function_t;
-
-/*
- * function definition for UTILITY request 0x12
- * DKT 020304 - new utility function
- */
-typedef enum {
-	UTILITY_SET_FILTER          = 0x01,
-	UTILITY_DATA_ENABLE         = 0x02,
-	UTILITY_FLEX_MULTIWRITE     = 0x03,
-	UTILITY_SET_BUFFER_SIZE     = 0x04,
-	UTILITY_FLEX_OPERATOR       = 0x05,
-	UTILITY_FLEX_RESET300_START = 0x06,
-	UTILITY_FLEX_RESET300_STOP  = 0x07,
-	UTILITY_FLEX_RESET300       = 0x08,
-	UTILITY_SET_ISO_SIZE        = 0x09,
-	UTILITY_DATA_RESET          = 0x0A,
-	UTILITY_GET_DATA_STATUS     = 0x10,
-	UTILITY_GET_V8_REG          = 0x11,
-/* DKT 020326 - add function for v1.14 */
-	UTILITY_SRAM_WRITE          = 0x12,
-	UTILITY_SRAM_READ           = 0x13,
-	UTILITY_SRAM_TESTFILL       = 0x14,
-	UTILITY_SRAM_TESTSET        = 0x15,
-	UTILITY_SRAM_TESTVERIFY     = 0x16,
-} b2c2_usb_utility_function_t;
-
-#define B2C2_WAIT_FOR_OPERATION_RW  1  // 1 s
-#define B2C2_WAIT_FOR_OPERATION_RDW 3  // 3 s
-#define B2C2_WAIT_FOR_OPERATION_WDW 1  // 1 s
-
-#define B2C2_WAIT_FOR_OPERATION_V8READ   3  // 3 s
-#define B2C2_WAIT_FOR_OPERATION_V8WRITE  3  // 3 s
-#define B2C2_WAIT_FOR_OPERATION_V8FLASH  3  // 3 s
-
-/* JLP 111700: we will include the 1 bit gap between the upper and lower 3 bits
- * in the IBI address, to make the V8 code simpler.
- * PCI ADDRESS FORMAT: 0x71C -> 0000 0111 0001 1100 (these are the six bits used)
- *                  in general: 0000 0HHH 000L LL00
- * IBI ADDRESS FORMAT:                    RHHH BLLL
- *
- * where R is the read(1)/write(0) bit, B is the busy bit
- * and HHH and LLL are the two sets of three bits from the PCI address.
- */
-#define B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(usPCI) (u8) (((usPCI >> 2) & 0x07) + ((usPCI >> 4) & 0x70))
-#define B2C2_FLEX_INTERNALADDR_TO_PCIOFFSET(ucAddr) (u16) (((ucAddr & 0x07) << 2) + ((ucAddr & 0x70) << 4))
-
-/*
- * DKT 020228 - forget about this VENDOR_BUFFER_SIZE, read and write register
- * deal with DWORD or 4 bytes, that should be should from now on
- */
-static u32 b2c2_usb_read_dw(struct usb_b2c2_usb *b2c2, u16 wRegOffsPCI)
-{
-	u32 val;
-	u16 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI) | 0x0080;
-	int len = usb_control_msg(b2c2->udev,
-			B2C2_USB_CTRL_PIPE_IN,
-			B2C2_USB_READ_REG,
-			RTYPE_READ_DW,
-			wAddress,
-			0,
-			&val,
-			sizeof(u32),
-			B2C2_WAIT_FOR_OPERATION_RDW * 1000);
-
-	if (len != sizeof(u32)) {
-		err("error while reading dword from %d (%d).",wAddress,wRegOffsPCI);
-		return -EIO;
-	} else
-		return val;
-}
-
-/*
- * DKT 020228 - from now on, we don't support anything older than firm 1.00
- * I eliminated the write register as a 2 trip of writing hi word and lo word
- * and force this to write only 4 bytes at a time.
- * NOTE: this should work with all the firmware from 1.00 and newer
- */
-static int b2c2_usb_write_dw(struct usb_b2c2_usb *b2c2, u16 wRegOffsPCI, u32 val)
-{
-	u16 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI);
-	int len = usb_control_msg(b2c2->udev,
-			B2C2_USB_CTRL_PIPE_OUT,
-			B2C2_USB_WRITE_REG,
-			RTYPE_WRITE_DW_1,
-			wAddress,
-			0,
-			&val,
-			sizeof(u32),
-			B2C2_WAIT_FOR_OPERATION_RDW * 1000);
-
-	if (len != sizeof(u32)) {
-		err("error while reading dword from %d (%d).",wAddress,wRegOffsPCI);
-		return -EIO;
-	} else
-		return 0;
-}
-
-/*
- * DKT 010817 - add support for V8 memory read/write and flash update
- */
-static int b2c2_usb_v8_memory_req(struct usb_b2c2_usb *b2c2,
-		b2c2_usb_request_t req, u8 page, u16 wAddress,
-		u16 buflen, u8 *pbBuffer)
-{
-	u8 dwRequestType;
-	u16 wIndex;
-	int nWaitTime,pipe,len;
-
-	wIndex = page << 8;
-
-	switch (req) {
-		case B2C2_USB_READ_V8_MEM:
-			nWaitTime = B2C2_WAIT_FOR_OPERATION_V8READ;
-			dwRequestType = (u8) RTYPE_READ_V8_MEMORY;
-			pipe = B2C2_USB_CTRL_PIPE_IN;
-		break;
-		case B2C2_USB_WRITE_V8_MEM:
-			wIndex |= pbBuffer[0];
-			nWaitTime = B2C2_WAIT_FOR_OPERATION_V8WRITE;
-			dwRequestType = (u8) RTYPE_WRITE_V8_MEMORY;
-			pipe = B2C2_USB_CTRL_PIPE_OUT;
-		break;
-		case B2C2_USB_FLASH_BLOCK:
-			nWaitTime = B2C2_WAIT_FOR_OPERATION_V8FLASH;
-			dwRequestType = (u8) RTYPE_WRITE_V8_FLASH;
-			pipe = B2C2_USB_CTRL_PIPE_OUT;
-		break;
-		default:
-			deb_info("unsupported request for v8_mem_req %x.\n",req);
-		return -EINVAL;
-	}
-	len = usb_control_msg(b2c2->udev,pipe,
-			req,
-			dwRequestType,
-			wAddress,
-			wIndex,
-			pbBuffer,
-			buflen,
-			nWaitTime * 1000);
-	return len == buflen ? 0 : -EIO;
-}
-
-static int b2c2_usb_i2c_req(struct usb_b2c2_usb *b2c2,
-		b2c2_usb_request_t req, b2c2_usb_i2c_function_t func,
-		u8 port, u8 chipaddr, u8 addr, u8 buflen, u8 *buf)
-{
-	u16 wValue, wIndex;
-	int nWaitTime,pipe,len;
-	u8 dwRequestType;
-
-	switch (func) {
-		case USB_FUNC_I2C_WRITE:
-		case USB_FUNC_I2C_MULTIWRITE:
-		case USB_FUNC_I2C_REPEATWRITE:
-		/* DKT 020208 - add this to support special case of DiSEqC */
-		case USB_FUNC_I2C_CHECKWRITE:
-			pipe = B2C2_USB_CTRL_PIPE_OUT;
-			nWaitTime = 2;
-			dwRequestType = (u8) RTYPE_GENERIC;
-		break;
-		case USB_FUNC_I2C_READ:
-		case USB_FUNC_I2C_REPEATREAD:
-			pipe = B2C2_USB_CTRL_PIPE_IN;
-			nWaitTime = 2;
-			dwRequestType = (u8) RTYPE_GENERIC;
-		break;
-		default:
-			deb_info("unsupported function for i2c_req %x\n",func);
-			return -EINVAL;
-	}
-	wValue = (func << 8 ) | port;
-	wIndex = (chipaddr << 8 ) | addr;
-
-	len = usb_control_msg(b2c2->udev,pipe,
-			req,
-			dwRequestType,
-			addr,
-			wIndex,
-			buf,
-			buflen,
-			nWaitTime * 1000);
-	return len == buflen ? 0 : -EIO;
-}
-
-int static b2c2_usb_utility_req(struct usb_b2c2_usb *b2c2, int set,
-		b2c2_usb_utility_function_t func, u8 extra, u16 wIndex,
-		u16 buflen, u8 *pvBuffer)
-{
-	u16 wValue;
-	int nWaitTime = 2,
-		pipe = set ? B2C2_USB_CTRL_PIPE_OUT : B2C2_USB_CTRL_PIPE_IN,
-		len;
-
-	wValue = (func << 8) | extra;
-
-	len = usb_control_msg(b2c2->udev,pipe,
-			B2C2_USB_UTILITY,
-			(u8) RTYPE_GENERIC,
-			wValue,
-			wIndex,
-			pvBuffer,
-			buflen,
-			nWaitTime * 1000);
-	return len == buflen ? 0 : -EIO;
-}
-
-
-
-static void b2c2_dumpfourreg(struct usb_b2c2_usb *b2c2, u16 offs)
-{
-	u32 r0,r1,r2,r3;
-	r0 = r1 = r2 = r3 = 0;
-	r0 = b2c2_usb_read_dw(b2c2,offs);
-	r1 = b2c2_usb_read_dw(b2c2,offs + 0x04);
-	r2 = b2c2_usb_read_dw(b2c2,offs + 0x08);
-	r3 = b2c2_usb_read_dw(b2c2,offs + 0x0c);
-	deb_ctrl("dump: offset: %03x, %08x, %08x, %08x, %08x\n",offs,r0,r1,r2,r3);
-}
-
-static void b2c2_urb_complete(struct urb *urb, struct pt_regs *ptregs)
-{
-	struct usb_b2c2_usb *b2c2 = urb->context;
-	deb_ts("urb completed, bufsize: %d\n",urb->transfer_buffer_length);
-
-//	urb_submit_urb(urb,GFP_ATOMIC); enable for real action
-}
-
-static void b2c2_exit_usb(struct usb_b2c2_usb *b2c2)
-{
-	int i;
-	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
-		if (b2c2->iso_urb[i] != NULL) { /* not sure about unlink_urb and iso-urbs TODO */
-			deb_info("unlinking/killing urb no. %d\n",i);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,7)
-			usb_unlink_urb(b2c2->iso_urb[i]);
-#else
-			usb_kill_urb(b2c2->iso_urb[i]);
-#endif
-			usb_free_urb(b2c2->iso_urb[i]);
-		}
-
-	if (b2c2->iso_buffer != NULL)
-		pci_free_consistent(NULL,b2c2->buffer_size, b2c2->iso_buffer, b2c2->iso_dma_handle);
-
-}
-
-static int b2c2_init_usb(struct usb_b2c2_usb *b2c2)
-{
-	u16 frame_size = le16_to_cpu(b2c2->uintf->cur_altsetting->endpoint[0].desc.wMaxPacketSize);
-	int bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO * frame_size,i,j,ret;
-	int buffer_offset = 0;
-
-	deb_info("creating %d iso-urbs with %d frames each of %d bytes size = %d.\n",
-			B2C2_USB_NUM_ISO_URB, B2C2_USB_FRAMES_PER_ISO, frame_size,bufsize);
-
-	b2c2->iso_buffer = pci_alloc_consistent(NULL,bufsize,&b2c2->iso_dma_handle);
-	if (b2c2->iso_buffer == NULL)
-		return -ENOMEM;
-	memset(b2c2->iso_buffer, 0, bufsize);
-	b2c2->buffer_size = bufsize;
-
-	/* creating iso urbs */
-	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
-		if (!(b2c2->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,GFP_ATOMIC))) {
-			ret = -ENOMEM;
-			goto urb_error;
-		}
-	/* initialising and submitting iso urbs */
-	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
-		int frame_offset = 0;
-		struct urb *urb = b2c2->iso_urb[i];
-		deb_info("initializing and submitting urb no. %d (buf_offset: %d).\n",i,buffer_offset);
-
-		urb->dev = b2c2->udev;
-		urb->context = b2c2;
-		urb->complete = b2c2_urb_complete;
-		urb->pipe = B2C2_USB_DATA_PIPE;
-		urb->transfer_flags = URB_ISO_ASAP;
-		urb->interval = 1;
-		urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
-		urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
-		urb->transfer_buffer = b2c2->iso_buffer + buffer_offset;
-
-		buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
-		for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
-			deb_info("urb no: %d, frame: %d, frame_offset: %d\n",i,j,frame_offset);
-			urb->iso_frame_desc[j].offset = frame_offset;
-			urb->iso_frame_desc[j].length = frame_size;
-			frame_offset += frame_size;
-		}
-
-		if ((ret = usb_submit_urb(b2c2->iso_urb[i],GFP_ATOMIC))) {
-			err("submitting urb %d failed with %d.",i,ret);
-			goto urb_error;
-		}
-		deb_info("submitted urb no. %d.\n",i);
-	}
-
-	ret = 0;
-	goto success;
-urb_error:
-	b2c2_exit_usb(b2c2);
-success:
-	return ret;
-}
-
-static int b2c2_usb_probe(struct usb_interface *intf,
-		const struct usb_device_id *id)
-{
-	struct usb_device *udev = interface_to_usbdev(intf);
-	struct usb_b2c2_usb *b2c2 = NULL;
-	int ret;
-
-	b2c2 = kmalloc(sizeof(struct usb_b2c2_usb),GFP_KERNEL);
-	if (b2c2 == NULL) {
-		err("no memory");
-		return -ENOMEM;
-	}
-	b2c2->udev = udev;
-	b2c2->uintf = intf;
-
-	/* use the alternate setting with the larges buffer */
-	usb_set_interface(udev,0,1);
-
-	if ((ret = b2c2_init_usb(b2c2)))
-		goto usb_init_error;
-
-	usb_set_intfdata(intf,b2c2);
-
-	switch (udev->speed) {
-		case USB_SPEED_LOW:
-			err("cannot handle USB speed because it is to sLOW.");
-			break;
-		case USB_SPEED_FULL:
-			info("running at FULL speed.");
-			break;
-		case USB_SPEED_HIGH:
-			info("running at HIGH speed.");
-			break;
-		case USB_SPEED_UNKNOWN: /* fall through */
-		default:
-			err("cannot handle USB speed because it is unkown.");
-		break;
-	}
-
-	b2c2_dumpfourreg(b2c2,0x200);
-	b2c2_dumpfourreg(b2c2,0x300);
-	b2c2_dumpfourreg(b2c2,0x400);
-	b2c2_dumpfourreg(b2c2,0x700);
-
-
-	if (ret == 0)
-		info("%s successfully initialized and connected.",DRIVER_DESC);
-	else
-		info("%s error while loading driver (%d)",DRIVER_DESC,ret);
-
-	ret = 0;
-	goto success;
-
-usb_init_error:
-	kfree(b2c2);
-success:
-	return ret;
-}
-
-static void b2c2_usb_disconnect(struct usb_interface *intf)
-{
-	struct usb_b2c2_usb *b2c2 = usb_get_intfdata(intf);
-	usb_set_intfdata(intf,NULL);
-	if (b2c2 != NULL) {
-		b2c2_exit_usb(b2c2);
-		kfree(b2c2);
-	}
-	info("%s successfully deinitialized and disconnected.",DRIVER_DESC);
-
-}
-
-static struct usb_device_id b2c2_usb_table [] = {
-	    { USB_DEVICE(0x0af7, 0x0101) }
-};
-
-/* usb specific object needed to register this driver with the usb subsystem */
-static struct usb_driver b2c2_usb_driver = {
-	.owner		= THIS_MODULE,
-	.name		= "dvb_b2c2_usb",
-	.probe 		= b2c2_usb_probe,
-	.disconnect = b2c2_usb_disconnect,
-	.id_table 	= b2c2_usb_table,
-};
-
-/* module stuff */
-static int __init b2c2_usb_init(void)
-{
-	int result;
-	if ((result = usb_register(&b2c2_usb_driver))) {
-		err("usb_register failed. Error number %d",result);
-		return result;
-	}
-
-	return 0;
-}
-
-static void __exit b2c2_usb_exit(void)
-{
-	/* deregister this driver from the USB subsystem */
-	usb_deregister(&b2c2_usb_driver);
-}
-
-module_init (b2c2_usb_init);
-module_exit (b2c2_usb_exit);
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(usb, b2c2_usb_table);

drivers/media/dvb/b2c2/flexcop-common.h

+/*
+ * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
+ *
+ * flexcop-common.h - common header file for device-specific source files also.
+ *
+ * see flexcop.c for copyright information.
+ */
+#ifndef __FLEXCOP_COMMON_H__
+#define __FLEXCOP_COMMON_H__
+
+#include <linux/config.h>
+#include <linux/pci.h>
+
+#include "flexcop-reg.h"
+
+#include "dmxdev.h"
+#include "dvb_demux.h"
+#include "dvb_filter.h"
+#include "dvb_net.h"
+#include "dvb_frontend.h"
+
+#define FC_MAX_FEED 256
+
+#ifndef FC_LOG_PREFIX
+#warning please define a log prefix for your file, using a default one
+#define FC_LOG_PREFIX "b2c2-undef"
+#endif
+
+/* Steal from usb.h */
+#undef err
+#define err(format,  arg...) printk(KERN_ERR     FC_LOG_PREFIX ": " format "\n" , ## arg)
+#undef info
+#define info(format, arg...) printk(KERN_INFO    FC_LOG_PREFIX ": " format "\n" , ## arg)
+#undef warn
+#define warn(format, arg...) printk(KERN_WARNING FC_LOG_PREFIX ": " format "\n" , ## arg)
+
+struct flexcop_dma {
+	struct pci_dev *pdev;
+
+	u8 *cpu_addr0;
+	dma_addr_t dma_addr0;
+	u8 *cpu_addr1;
+	dma_addr_t dma_addr1;
+	u32 size; /* size of each address in bytes */
+};
+
+/* Control structure for data definitions that are common to
+ * the B2C2-based PCI and USB devices.
+ */
+struct flexcop_device {
+	/* general */
+	struct device *dev; /* for firmware_class */
+
+#define FC_STATE_DVB_INIT 0x01
+#define FC_STATE_I2C_INIT 0x02
+#define FC_STATE_FE_INIT  0x04
+	int init_state;
+
+	/* device information */
+	int has_32_hw_pid_filter;
+	flexcop_revision_t rev;
+	flexcop_device_type_t dev_type;
+	flexcop_bus_t bus_type;
+
+	/* dvb stuff */
+	struct dvb_adapter dvb_adapter;
+	struct dvb_frontend *fe;
+	struct dvb_net dvbnet;
+	struct dvb_demux demux;
+	struct dmxdev dmxdev;
+	struct dmx_frontend hw_frontend;
+	struct dmx_frontend mem_frontend;
+	int (*fe_sleep) (struct dvb_frontend *);
+
+	struct i2c_adapter i2c_adap;
+	struct semaphore i2c_sem;
+
+	struct module *owner;
+
+	/* options and status */
+	int extra_feedcount;
+	int feedcount;
+	int pid_filtering;
+	int fullts_streaming_state;
+
+	/* bus specific callbacks */
+	flexcop_ibi_value (*read_ibi_reg)  (struct flexcop_device *, flexcop_ibi_register);
+	int               (*write_ibi_reg) (struct flexcop_device *, flexcop_ibi_register, flexcop_ibi_value);
+
+
+	int (*i2c_request) (struct flexcop_device*, flexcop_access_op_t, flexcop_i2c_port_t, u8 chipaddr, u8 addr, u8 *buf, u16 len);
+	int (*stream_control) (struct flexcop_device*, int);
+
+	int (*get_mac_addr) (struct flexcop_device *fc, int extended);
+
+	void *bus_specific;
+};
+
+/* exported prototypes */
+
+/* from flexcop.c */
+void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len);
+void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no);
+
+struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len);
+void flexcop_device_kfree(struct flexcop_device*);
+
+int  flexcop_device_initialize(struct flexcop_device*);
+void flexcop_device_exit(struct flexcop_device *fc);
+
+/* from flexcop-dma.c */
+int flexcop_dma_allocate(struct pci_dev *pdev, struct flexcop_dma *dma, u32 size);
+void flexcop_dma_free(struct flexcop_dma *dma);
+
+int flexcop_dma_control_timer_irq(struct flexcop_device *fc, flexcop_dma_index_t no, int onoff);
+int flexcop_dma_control_size_irq(struct flexcop_device *fc, flexcop_dma_index_t no, int onoff);
+int flexcop_dma_control_packet_irq(struct flexcop_device *fc, flexcop_dma_index_t no, int onoff);
+int flexcop_dma_config(struct flexcop_device *fc, struct flexcop_dma *dma, flexcop_dma_index_t dma_idx,flexcop_dma_addr_index_t index);
+int flexcop_dma_config_timer(struct flexcop_device *fc, flexcop_dma_index_t dma_idx, u8 cycles);
+int flexcop_dma_config_packet_count(struct flexcop_device *fc, flexcop_dma_index_t dma_idx, u8 packets);
+
+/* from flexcop-eeprom.c */
+/* the PCI part uses this call to get the MAC address, the USB part has its own */
+int flexcop_eeprom_check_mac_addr(struct flexcop_device *fc, int extended);
+
+/* from flexcop-i2c.c */
+/* the PCI part uses this a i2c_request callback, whereas the usb part has its own
+ * one. We have it in flexcop-i2c.c, because it is going via the actual
+ * I2C-channel of the flexcop.
+ */
+int flexcop_i2c_request(struct flexcop_device*, flexcop_access_op_t,
+		        flexcop_i2c_port_t, u8 chipaddr, u8 addr, u8 *buf, u16 len);
+
+/* from flexcop-sram.c */
+int flexcop_sram_set_dest(struct flexcop_device *fc, flexcop_sram_dest_t dest, flexcop_sram_dest_target_t target);
+void flexcop_wan_set_speed(struct flexcop_device *fc, flexcop_wan_speed_t s);
+void flexcop_sram_ctrl(struct flexcop_device *fc, int usb_wan, int sramdma, int maximumfill);
+
+/* global prototypes for the flexcop-chip */
+/* from flexcop-fe-tuner.c */
+int flexcop_frontend_init(struct flexcop_device *card);
+void flexcop_frontend_exit(struct flexcop_device *fc);
+
+/* from flexcop-i2c.c */
+int flexcop_i2c_init(struct flexcop_device *fc);
+void flexcop_i2c_exit(struct flexcop_device *fc);
+
+/* from flexcop-sram.c */
+int flexcop_sram_init(struct flexcop_device *fc);
+
+/* from flexcop-misc.c */
+void flexcop_determine_revision(struct flexcop_device *fc);
+void flexcop_device_name(struct flexcop_device *fc,const char *prefix,const char *suffix);
+
+/* from flexcop-hw-filter.c */
+int flexcop_pid_feed_control(struct flexcop_device *fc, struct dvb_demux_feed *dvbdmxfeed, int onoff);
+void flexcop_hw_filter_init(struct flexcop_device *fc);
+
+void flexcop_smc_ctrl(struct flexcop_device *fc, int onoff);
+
+void flexcop_set_mac_filter(struct flexcop_device *fc, u8 mac[6]);
+void flexcop_mac_filter_ctrl(struct flexcop_device *fc, int onoff);
+
+#endif

drivers/media/dvb/b2c2/flexcop-dma.c

+/*
+ * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
+ *
+ * flexcop-dma.c - methods for configuring and controlling the DMA of the FlexCop.
+ *
+ * see flexcop.c for copyright information.
+ */
+#include "flexcop.h"
+
+int flexcop_dma_allocate(struct pci_dev *pdev, struct flexcop_dma *dma, u32 size)
+{
+	u8 *tcpu;
+	dma_addr_t tdma;
+
+	if (size % 2) {
+		err("dma buffersize has to be even.");
+		return -EINVAL;
+	}
+
+	if ((tcpu = pci_alloc_consistent(pdev, size, &tdma)) != NULL) {
+		dma->pdev = pdev;
+		dma->cpu_addr0 = tcpu;
+		dma->dma_addr0 = tdma;
+		dma->cpu_addr1 = tcpu + size/2;
+		dma->dma_addr1 = tdma + size/2;
+		dma->size = size/2;
+		return 0;
+	}
+	return -ENOMEM;
+}
+EXPORT_SYMBOL(flexcop_dma_allocate);
+
+void flexcop_dma_free(struct flexcop_dma *dma)
+{
+	pci_free_consistent(dma->pdev, dma->size*2,dma->cpu_addr0, dma->dma_addr0);
+	memset(dma,0,sizeof(struct flexcop_dma));
+}
+EXPORT_SYMBOL(flexcop_dma_free);
+
+int flexcop_dma_control_timer_irq(struct flexcop_device *fc, flexcop_dma_index_t no, int onoff)
+{
+	flexcop_ibi_value v = fc->read_ibi_reg(fc,ctrl_208);
+
+	if (no & FC_DMA_1)
+		v.ctrl_208.DMA1_Timer_Enable_sig = onoff;
+
+	if (no & FC_DMA_2)
+		v.ctrl_208.DMA2_Timer_Enable_sig = onoff;
+
+	fc->write_ibi_reg(fc,ctrl_208,v);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_control_timer_irq);
+
+int flexcop_dma_control_size_irq(struct flexcop_device *fc, flexcop_dma_index_t no, int onoff)
+{
+	flexcop_ibi_value v = fc->read_ibi_reg(fc,ctrl_208);
+
+	if (no & FC_DMA_1)
+		v.ctrl_208.DMA1_IRQ_Enable_sig = onoff;
+
+	if (no & FC_DMA_2)
+		v.ctrl_208.DMA2_IRQ_Enable_sig = onoff;
+
+	fc->write_ibi_reg(fc,ctrl_208,v);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_control_size_irq);
+
+int flexcop_dma_control_packet_irq(struct flexcop_device *fc, flexcop_dma_index_t no, int onoff)
+{
+	flexcop_ibi_value v = fc->read_ibi_reg(fc,ctrl_208);
+
+	if (no & FC_DMA_1)
+		v.ctrl_208.DMA1_Size_IRQ_Enable_sig = onoff;
+
+	if (no & FC_DMA_2)
+		v.ctrl_208.DMA2_Size_IRQ_Enable_sig = onoff;
+
+	fc->write_ibi_reg(fc,ctrl_208,v);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_control_packet_irq);
+
+int flexcop_dma_config(struct flexcop_device *fc, struct flexcop_dma *dma, flexcop_dma_index_t dma_idx,flexcop_dma_addr_index_t index)
+{
+
+	flexcop_ibi_value v0x0,v0x4,v0xc;
+	v0x0.raw = v0x4.raw = v0xc.raw = 0;
+
+	v0x0.dma_0x0.dma_address0        = dma->dma_addr0 >> 2;
+	v0xc.dma_0xc.dma_address1        = dma->dma_addr1 >> 2;
+	v0x4.dma_0x4_write.dma_addr_size = dma->size / 4;
+
+	if (index & FC_DMA_SUBADDR_0)
+		v0x0.dma_0x0.dma_0start = 1;
+
+	if (index & FC_DMA_SUBADDR_1)
+		v0xc.dma_0xc.dma_1start = 1;
+
+	if (dma_idx & FC_DMA_1) {
+		fc->write_ibi_reg(fc,dma1_000,v0x0);
+		fc->write_ibi_reg(fc,dma1_004,v0x4);
+		fc->write_ibi_reg(fc,dma1_00c,v0xc);
+	} else { /* (dma_idx & FC_DMA_2) */
+		fc->write_ibi_reg(fc,dma2_010,v0x0);
+		fc->write_ibi_reg(fc,dma2_014,v0x4);
+		fc->write_ibi_reg(fc,dma2_01c,v0xc);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_config);
+
+static int flexcop_dma_remap(struct flexcop_device *fc, flexcop_dma_index_t dma_idx, int onoff)
+{
+	flexcop_ibi_register r = (dma_idx & FC_DMA_1) ? dma1_00c : dma2_01c;
+	flexcop_ibi_value v = fc->read_ibi_reg(fc,r);
+	v.dma_0xc.remap_enable = onoff;
+	fc->write_ibi_reg(fc,r,v);
+	return 0;
+}
+
+/* 1 cycles = 1.97 msec */
+int flexcop_dma_config_timer(struct flexcop_device *fc, flexcop_dma_index_t dma_idx, u8 cycles)
+{
+	flexcop_ibi_register r = (dma_idx & FC_DMA_1) ? dma1_004 : dma2_014;
+	flexcop_ibi_value v = fc->read_ibi_reg(fc,r);
+
+	flexcop_dma_remap(fc,dma_idx,0);
+
+	v.dma_0x4_write.dmatimer = cycles >> 1;
+	fc->write_ibi_reg(fc,r,v);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_config_timer);
+
+int flexcop_dma_config_packet_count(struct flexcop_device *fc, flexcop_dma_index_t dma_idx, u8 packets)
+{
+	flexcop_ibi_register r = (dma_idx & FC_DMA_1) ? dma1_004 : dma2_014;
+	flexcop_ibi_value v = fc->read_ibi_reg(fc,r);
+
+	flexcop_dma_remap(fc,dma_idx,1);
+
+	v.dma_0x4_remap.DMA_maxpackets = packets;
+	fc->write_ibi_reg(fc,r,v);
+	return 0;
+}
+EXPORT_SYMBOL(flexcop_dma_config_packet_count);

drivers/media/dvb/b2c2/flexcop.h

+/*
+ * This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
+ *
+ * flexcop.h - private header file for all flexcop-chip-source files.
+ *
+ * see flexcop.c for copyright information.
+ */
+#ifndef __FLEXCOP_H__
+#define __FLEXCOP_H___
+
+#define FC_LOG_PREFIX "b2c2-flexcop"
+#include "flexcop-common.h"
+
+extern int b2c2_flexcop_debug;
+
+/* debug */
+#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
+#define dprintk(level,args...) \
+	do { if ((b2c2_flexcop_debug & level)) printk(args); } while (0)
+#else
+#define dprintk(level,args...)
+#endif
+
+#define deb_info(args...)  dprintk(0x01,args)
+#define deb_tuner(args...) dprintk(0x02,args)
+#define deb_i2c(args...)   dprintk(0x04,args)
+#define deb_ts(args...)    dprintk(0x08,args)
+#define deb_sram(args...)  dprintk(0x10,args)
+
+#endif

drivers/media/dvb/bt8xx/Kconfig

@@ -11,9 +11,8 @@ config DVB_BT8XX
 	  the Nebula cards, the Pinnacle PCTV cards, the Twinhan DST cards and
 	  pcHDTV HD2000 cards.
 
-          Since these cards have no MPEG decoder onboard, they transmit
+	  Since these cards have no MPEG decoder onboard, they transmit
 	  only compressed MPEG data over the PCI bus, so you need
 	  an external software decoder to watch TV on your computer.
 
 	  Say Y if you own such a device and want to use it.
-

drivers/media/dvb/bt8xx/Makefile

-
-obj-$(CONFIG_DVB_BT8XX) += bt878.o dvb-bt8xx.o dst.o
+obj-$(CONFIG_DVB_BT8XX) += bt878.o dvb-bt8xx.o dst.o dst_ca.o
 
 EXTRA_CFLAGS = -Idrivers/media/dvb/dvb-core/ -Idrivers/media/video -Idrivers/media/dvb/frontends
-

drivers/media/dvb/bt8xx/dst_priv.h

@@ -33,4 +33,3 @@ union dst_gpio_packet {
 struct bt878;
 
 int bt878_device_control(struct bt878 *bt, unsigned int cmd, union dst_gpio_packet *mp);
-