Commit Graph

2267 Commits

Author SHA1 Message Date
Adrian Bunk
02112dbc92 mips: use bcd2bin/bin2bcd
Changes mips to use the new bcd2bin/bin2bcd functions instead of the
obsolete BCD_TO_BIN/BIN_TO_BCD/BCD2BIN/BIN2BCD macros.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:41 -07:00
Matt Helsley
dc52ddc0e6 container freezer: implement freezer cgroup subsystem
This patch implements a new freezer subsystem in the control groups
framework.  It provides a way to stop and resume execution of all tasks in
a cgroup by writing in the cgroup filesystem.

The freezer subsystem in the container filesystem defines a file named
freezer.state.  Writing "FROZEN" to the state file will freeze all tasks
in the cgroup.  Subsequently writing "RUNNING" will unfreeze the tasks in
the cgroup.  Reading will return the current state.

* Examples of usage :

   # mkdir /containers/freezer
   # mount -t cgroup -ofreezer freezer  /containers
   # mkdir /containers/0
   # echo $some_pid > /containers/0/tasks

to get status of the freezer subsystem :

   # cat /containers/0/freezer.state
   RUNNING

to freeze all tasks in the container :

   # echo FROZEN > /containers/0/freezer.state
   # cat /containers/0/freezer.state
   FREEZING
   # cat /containers/0/freezer.state
   FROZEN

to unfreeze all tasks in the container :

   # echo RUNNING > /containers/0/freezer.state
   # cat /containers/0/freezer.state
   RUNNING

This is the basic mechanism which should do the right thing for user space
task in a simple scenario.

It's important to note that freezing can be incomplete.  In that case we
return EBUSY.  This means that some tasks in the cgroup are busy doing
something that prevents us from completely freezing the cgroup at this
time.  After EBUSY, the cgroup will remain partially frozen -- reflected
by freezer.state reporting "FREEZING" when read.  The state will remain
"FREEZING" until one of these things happens:

	1) Userspace cancels the freezing operation by writing "RUNNING" to
		the freezer.state file
	2) Userspace retries the freezing operation by writing "FROZEN" to
		the freezer.state file (writing "FREEZING" is not legal
		and returns EIO)
	3) The tasks that blocked the cgroup from entering the "FROZEN"
		state disappear from the cgroup's set of tasks.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: export thaw_process]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Tested-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:34 -07:00
Linus Torvalds
c813b4e16e Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (46 commits)
  UIO: Fix mapping of logical and virtual memory
  UIO: add automata sercos3 pci card support
  UIO: Change driver name of uio_pdrv
  UIO: Add alignment warnings for uio-mem
  Driver core: add bus_sort_breadthfirst() function
  NET: convert the phy_device file to use bus_find_device_by_name
  kobject: Cleanup kobject_rename and !CONFIG_SYSFS
  kobject: Fix kobject_rename and !CONFIG_SYSFS
  sysfs: Make dir and name args to sysfs_notify() const
  platform: add new device registration helper
  sysfs: use ilookup5() instead of ilookup5_nowait()
  PNP: create device attributes via default device attributes
  Driver core: make bus_find_device_by_name() more robust
  usb: turn dev_warn+WARN_ON combos into dev_WARN
  debug: use dev_WARN() rather than WARN_ON() in device_pm_add()
  debug: Introduce a dev_WARN() function
  sysfs: fix deadlock
  device model: Do a quickcheck for driver binding before doing an expensive check
  Driver core: Fix cleanup in device_create_vargs().
  Driver core: Clarify device cleanup.
  ...
2008-10-16 12:40:26 -07:00
Linus Torvalds
e4856a70cf Merge branch 'personality' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'personality' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
2008-10-16 12:32:52 -07:00
Alexey Dobriyan
f221e726bf sysctl: simplify ->strategy
name and nlen parameters passed to ->strategy hook are unused, remove
them.  In general ->strategy hook should know what it's doing, and don't
do something tricky for which, say, pointer to original userspace array
may be needed (name).

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net> [ networking bits ]
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Christoph Hellwig
b418da16dd compat: generic compat get/settimeofday
Nothing arch specific in get/settimeofday.  The details of the timeval
conversion varied a little from arch to arch, but all with the same
results.

Also add an extern declaration for sys_tz to linux/time.h because externs
in .c files are fowned upon.  I'll kill the externs in various other files
in a sparate patch.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net> [ sparc bits ]
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:33 -07:00
Christoph Hellwig
f7a5000f7a compat: move cp_compat_stat to common code
struct stat / compat_stat is the same on all architectures, so
cp_compat_stat should be, too.

Turns out it is, except that various architectures have slightly and some
high2lowuid/high2lowgid or the direct assignment instead of the
SET_UID/SET_GID that expands to the correct one anyway.

This patch replaces the arch-specific cp_compat_stat implementations with
a common one based on the x86-64 one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net> [ sparc bits ]
Acked-by: Kyle McMartin <kyle@mcmartin.ca> [ parisc bits ]
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:33 -07:00
Greg Kroah-Hartman
a9b12619f7 device create: misc: convert device_create_drvdata to device_create
Now that device_create() has been audited, rename things back to the
original call to be sane.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-16 09:24:43 -07:00
Martin Schwidefsky
0b59268285 [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
The SET_PERSONALITY macro is always called with a second argument of 0.
Remove the ibcs argument and the various tests to set the PER_SVR4
personality.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-16 15:40:05 +02:00
Shinya Kuribayashi
08da6f1bdd MIPS: Kill unused <asm/debug.h> inclusions
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:52 +01:00
Thomas Bogendoerfer
656e9503ba MIPS: IP32: Add platform device for CMOS RTC; remove dead code
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:52 +01:00
Thomas Bogendoerfer
3ec066cdb7 MIPS: IP27: Switch over to RTC class driver
This patchset removes some dead code and creates a platform device
for the RTC class driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:51 +01:00
Thomas Bogendoerfer
7d81a5e03d MIPS: IP22/28: Switch over to RTC class driver
This patchset removes some dead code and creates a platform device
for the RTC class driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:51 +01:00
Aurelien Jarno
540799e32e MIPS: PCI: Scan busses when they are registered
The patch below changes register_pci_controller() such that controllers
being added after pcibios_init() has run are be scanned immediately.

This is needed for example by the BCM47xx PCI controller, which is located
on the SSB bus, which is now initialized after the PCI subsystem.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:51 +01:00
Aurelien Jarno
89f8c04a49 MIPS: WGT634U: Add reset button support
This patch adds support for the reset button of WGT634U machine, using
GPIO interrupts. Based on a patch from Michel Lespinasse.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:51 +01:00
Aurelien Jarno
b06f3e19a6 MIPS: BCM47xx: Use the new SSB GPIO API
This patch simplifies the BCM47xx GPIO code by using the new SSB GPIO
API, which does a lot things that were implemented directly in the
BCM47xx code.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:50 +01:00
Aurelien Jarno
d412283cef MIPS: BCM47xx: Remove references to BCM947XX
This patch removes the remaining reference to the BCM947xx development
board codename.

Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:50 +01:00
Aurelien Jarno
91a385b8f2 MIPS: WGT634U: Add machine detection message
This adds a printk message when a WGT634U machine is detected.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:50 +01:00
David Daney
2dbac10263 MIPS: Align .data.cacheline_aligned based on CONFIG_MIPS_L1_CACHE_SHIFT
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:50 +01:00
Johannes Dickgreber
e47c659b55 MIPS: show_cpuinfo prints the type of the calling CPU
It should print the type of the Nth processor.

Signed-off-by: Johannes Dickgreber <tanzy@gmx.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:50 +01:00
Johannes Dickgreber
9b8f3863d9 MIPS: Fix wrong branch target in new spin_lock code.
Signed-off-by: Johannes Dickgreber <tanzy@gmx.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:50 +01:00
Ralf Baechle
201c72a379 MIPS: Have a heart for a lonely, lost header file ...
... and move it to where all its brothers and sisters reside.  Requested by
Shane McDonald <mcdonald.shane@gmail.com>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-15 12:46:49 +01:00
Bartlomiej Zolnierkiewicz
cf4049103b ide-generic: remove no longer needed ide_probe_legacy()
There is now a generic solution [ide_generic_check_pci_legacy_iobases()]
so MIPS-specific ide_probe_legacy() is no longer necessary.

Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-13 21:39:42 +02:00
David Woodhouse
e758936e02 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	include/asm-x86/statfs.h
2008-10-13 17:13:56 +01:00
Florian Fainelli
9609e74093 MIPS: RB532: provide GPIO_BUILTIN_NR and irq_to_gpio/gpio_to_irq
This patchs defines the number of built-in the GPIOs present
on the SoC as Documentation/gpio.txt recommends to do.
Define irq_to_gpio/gpio_to_irq to return the right values so that
it fixes a compilation error on drivers/gpio/gpiolib.c
when enabling debugfs.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:57 +01:00
Ralf Baechle
d302d05cf4 MIPS: Move ptrace prototypes to ptrace.h
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:57 +01:00
David Daney
0926bf953e MIPS: Ptrace support for HARDWARE_WATCHPOINTS
This is the final part of the watch register patch.  Here we hook up
ptrace so that the user space debugger (gdb), can set and read the
registers.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:57 +01:00
David Daney
2c708cbaa6 MIPS: Scheduler support for HARDWARE_WATCHPOINTS.
Here we hook up the scheduler.  Whenever we switch to a new process,
we check to see if the watch registers should be installed, and do it
if needed.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:57 +01:00
David Daney
b67b2b7030 MIPS: Watch exception handling for HARDWARE_WATCHPOINTS.
Here we hook up the watch exception handler so that it sends SIGTRAP when
the hardware watch registers are triggered.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:56 +01:00
David Daney
654f57bfb4 MIPS: Probe watch registers and report configuration.
Probe for watch register characteristics, and report them in /proc/cpuinfo.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:56 +01:00
David Daney
6aa3524c18 MIPS: Add HARDWARE_WATCHPOINTS definitions and support code.
This is the main support code for the patch.  Here we just add the
code, the following patches hook it up.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 create mode 100644 arch/mips/include/asm/watch.h
 create mode 100644 arch/mips/kernel/watch.c
2008-10-11 16:18:56 +01:00
David Daney
8192c9ea9a MIPS: Add HARDWARE_WATCHPOINTS configure option.
This is automatically set for all MIPS32 and MIPS64 processors.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:55 +01:00
Ralf Baechle
71ec6ccfdc MIPS: Replace use of <asm-generic/uaccess.h> with native implementations.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:54 +01:00
Atsushi Nemoto
4bacc68766 MIPS: TXx9: Add TX4939 ATA support (v2)
Add a helper routine to register tx4939ide driver and use it on
RBTX4939 board.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:54 +01:00
Ralf Baechle
2a31b03335 MIPS: Rewrite spinlocks to ticket locks.
Based on patch by Chad Reese of Cavium Networks.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:54 +01:00
Ralf Baechle
b65a75b8c9 MIPS: IP checksums: Optimize adjust of sum on buffers of odd alignment.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:53 +01:00
Ralf Baechle
60724ca59e MIPS: IP checksums: Remove unncessary .set pseudos
They possibly silence meaningful warnings ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:53 +01:00
Ralf Baechle
d86a8123b1 MIPS: IP checksums: Remove unncessary folding of sum to 16 bit.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:53 +01:00
Ralf Baechle
384740dc49 MIPS: Move headfiles to new location below arch/mips/include
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:52 +01:00
Ralf Baechle
e8c7c48234 MIPS: Alchemy: rename directory
It's more than the au1000 these days.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:50 +01:00
Atsushi Nemoto
b6263ff2d6 MIPS: TXx9: Implement prom_free_prom_memory
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:49 +01:00
Atsushi Nemoto
b27311e1ca MIPS: TXx9: Add RBTX4939 board support
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 create mode 100644 arch/mips/txx9/rbtx4939/Makefile
 create mode 100644 arch/mips/txx9/rbtx4939/irq.c
 create mode 100644 arch/mips/txx9/rbtx4939/prom.c
 create mode 100644 arch/mips/txx9/rbtx4939/setup.c
 create mode 100644 include/asm-mips/txx9/rbtx4939.h
2008-10-11 16:18:49 +01:00
Atsushi Nemoto
0dcdbe6add MIPS: TXx9: Add TX4939 SoC support
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 create mode 100644 arch/mips/pci/pci-tx4939.c
 create mode 100644 arch/mips/txx9/generic/irq_tx4939.c
 create mode 100644 arch/mips/txx9/generic/setup_tx4939.c
 create mode 100644 include/asm-mips/txx9/tx4939.h
2008-10-11 16:18:49 +01:00
Atsushi Nemoto
ae027ead87 MIPS: TXx9: IOC LED support
Add leds-gpio platform device for controlling LEDs connected to IOC on
RBTX49XX and JMR3927 board.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:49 +01:00
Atsushi Nemoto
21e77df215 MIPS: TXx9: Microoptimize interrupt handlers
The IOC interrupt status register on RBTX49XX only have 8 bits.  Use
8-bit version of __fls() to optimize interrupt handlers.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:47 +01:00
Atsushi Nemoto
f6d9831bb1 MIPS: TXx9: stop_unused_modules
TXx9 SoCs have pin multiplex.  Stop some controller modules which can
not be used due to pin configurations.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:47 +01:00
Florian Fainelli
d888e25b8d MIPS: RB532: Convert to GPIO lib
This patch converts the rb532 code to use gpio library
and register its gpio chip.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:47 +01:00
Florian Fainelli
606a083b1e MIPS: RB532: Cleanup the headers again
This patch cleans up headers and regroups informations to
where they should reside. While moving, try to have a
consistant naming for defines.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:46 +01:00
Florian Fainelli
deeb45ac4a MIPS: RB532: Remove obsolute reference to setup_serial_port
We are no longer using setup_serial_port. So just remove it
from the prom code.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:46 +01:00
Florian Fainelli
b6e2f58a50 MIPS: RB532: Fix id usage in platform devices
When there is only platform device of the same type, id = -1
should be used, fix this.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11 16:18:46 +01:00