Commit Graph

7168 Commits

Author SHA1 Message Date
Russell King
02fcb97436 [ARM] Remove the __arch_* layer from uaccess.h
Back in the days when we had armo (26-bit) and armv (32-bit) combined,
we had an additional layer to the uaccess macros to ensure correct
typing.  Since we no longer have 26-bit in this tree, we no longer
need this layer, so eliminate it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-28 17:53:27 +01:00
Greg Ungerer
01f7e67367 [PATCH] m68knommu: use Kconfig RAM config options in 68328 startup code
Switch to using the new RAM Kconfig settings, instead of linker defined
regions in ROM specific 68328 startup code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 18:30:14 -07:00
Greg Ungerer
f5c7726ffc [PATCH] m68knommu: use Kconfig RAM config options in 68360 ROM startup code
Switch to using the new RAM Kconfig settings, instead of linker defined
regions in ROM specific 68360 startup code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 18:30:14 -07:00
Greg Ungerer
d046f6118b [PATCH] m68knommu: use Kconfig RAM config options in 68360 RAM startup code
Switch to using the new RAM Kconfig settings, instead of linker defined
regions in RAM specific 68360 startup code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 18:30:14 -07:00
Greg Ungerer
67bdd98424 [PATCH] m68knommu: update m68knommu defconfnig
Updated defconfig for m68knommu arch. Includes recent changes to the clock
and RAM configuration options.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 18:26:37 -07:00
Matt Waddel
9a6404b4d9 [PATCH] m68knommu: build support for the Freescale 532x CPU family
Add build support for the M523x ColdFire CPU family.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 18:26:36 -07:00
Daniel Alomar
121036e5c5 [PATCH] m68knommu: build support for the Avnet/5282 board
Add support for the Avnet/5282 board.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 18:26:36 -07:00
Philipe De Muyter
3f787bff45 [PATCH] m68knommu: remove useless compiler args
Here is a small patch that made my kernel .text segment shrink by 8k IIRC
on my 5272-based board, by removing `-Wa,-S' from CFLAGS.

The `-Wa,-S' option prevents `gas' from using short forms of jsr.
Without it, `gas' replaces `jsr xxx.l' (6 bytes) by `jsr xxx@pc'
(4 bytes) when possible.  On 5272, both forms are equally fast.

The `-Wa,-m5307' option is useless, because gcc already gives it
to `gas' from the `-m5307' option.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 18:26:36 -07:00
James Bottomley
3c101cf024 [PATCH] voyager: add cpu_present_map
Voyager stopped booting some time in the 2.6.16-2.6.17 timeframe;
the reason was that it doesn't have a cpu_present_map, so add
one.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 18:25:03 -07:00
Andrew Morton
91bf460269 [PATCH] do_IRQ() warning fix
arch/i386/kernel/irq.c: In function 'do_IRQ':
arch/i386/kernel/irq.c:104: warning: suggest parentheses around arithmetic in operand of |

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:48 -07:00
Ingo Molnar
f9b8404cf8 [PATCH] pi-futex: introduce debug_check_no_locks_freed()
Add debug_check_no_locks_freed(), as a central inline to add
bad-lock-free-debugging functionality to.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:46 -07:00
Siddha, Suresh B
5c45bf279d [PATCH] sched: mc/smt power savings sched policy
sysfs entries 'sched_mc_power_savings' and 'sched_smt_power_savings' in
/sys/devices/system/cpu/ control the MC/SMT power savings policy for the
scheduler.

Based on the values (1-enable, 0-disable) for these controls, sched groups
cpu power will be determined for different domains.  When power savings
policy is enabled and under light load conditions, scheduler will minimize
the physical packages/cpu cores carrying the load and thus conserving
power(with a perf impact based on the workload characteristics...  see OLS
2005 CMP kernel scheduler paper for more details..)

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Con Kolivas <kernel@kolivas.org>
Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:45 -07:00
Jim Cromie
8bcf6135c3 [PATCH] chardev: GPIO for SCx200 & PC-8736x: replace spinlocks w mutexes
Replace spinlocks guarding gpio config ops with mutexes.  This is a me-too
patch, and is justifiable insofar as mutexes have stricter semantics and
better debugging support, so are preferred where they are applicable.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:43 -07:00
Jim Cromie
0e41ef3c51 [PATCH] chardev: GPIO for SCx200 & PC-8736x: migrate gpio_dump to common module
Since the meaning of config-bits is the same for scx200 and pc8736x _gpios, we
can share a function to deliver this to user.  Since it is called via the
vtable, its also completely replaceable.  For now, we keep using printk...

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:43 -07:00
Jim Cromie
9b170b8fdb [PATCH] chardev: GPIO for SCx200 & PC-8736x: refactor scx200_probe to better segregate _gpio initialization
Pull shadow-reg initialization into separate function now, rather than doing
it 2x later (scx200, pc8736x).  When we revisit 2nd drvr below, it will be to
reimplement an init function, rather than another refactor.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:42 -07:00
Jim Cromie
9550a339e1 [PATCH] chardev: GPIO for SCx200 & PC-8736x: add 'v' command to device-file
Add a new driver command: 'v' which calls gpio_dump() on the pin.  The output
goes to the log, like all other INFO messages in the original driver.  Giving
the user control over the feedback they 'need' is construed to be a
user-friendly feature, and allows us (later) to dial down many INFO messages
to DEBUG log-level.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:42 -07:00
Jim Cromie
d424aa8744 [PATCH] chardev: GPIO for SCx200 & PC-8736x: put gpio_dump on a diet
Shrink scx200_gpio_dump() to a single printk with ternary ops.  The function
is still ifdef'd out, this is corrected in next patch, when it is actually
used.

The patch 'inadvertently' changed loglevel from DEBUG to INFO.  This is Good,
because in next patch, its wired to a 'command' which the user can invoke when
they want.  When they do so, its because they want INFO to support their
developement effort, and we want to give it to them without compiling a DEBUG
version of the driver.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:42 -07:00
Jim Cromie
55b8c0455b [PATCH] chardev: GPIO for SCx200 & PC-8736x: device minor numbers are unsigned ints
Per kernel headers, device minor numbers are unsigned ints.  Do the same in
this driver.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:42 -07:00
Jim Cromie
62c83cde92 [PATCH] chardev: GPIO for SCx200 & PC-8736x: whitespace pre-clean
GPIO SUPPORT FOR SCx200 & PC8736x

The patch-set reworks the 2.4 vintage scx200_gpio driver for modern 2.6, and
refactors GPIO support to reuse it in a new driver for the GPIO on PC-8736x
chips.  Its handy for the Soekris.com net-4801, which has both chips.

These patches have been seen recently on Kernel-Mentors, and then
Kernel-Newbies ML, where Jesper Juhl kindly reviewed it.  His feedback has
been incorporated.  Thanks Jesper !

Its also gone to soekris-tech@soekris.com for possible testing by linux folks,
I've gotten 1 promise so far.  Theyre mostly BSD folk over there, but we'll
see..

Device-file & Sysfs

The driver preserves the existing device-file interface, including the
write/cmd set, but adds v to 'view' the pin-settings & configs by inducing,
via gpio_dump(), a dev_info() call.  Its a fairly crappy way to get status,
but it sticks to the syslog approach, conservatively.

Allowing users to voluntarily trigger logging is good, it gives them a
familiar way to confirm their app's control & use of the pins, and I've thus
reduced the pin-mode-updates from dev_info to dev_dbg.

I've recently bolted on a proto sysfs interface for both new drivers.  Im not
including those patches here; they (the patch + doc-pre-patch) are still quite
raw (and unreviewed on KNML), and since they 'invent' a convention for GPIO, a
proper vetting is needed.  Since this patchset is much bigger than my previous
ones, Id like to keep things simpler, and address it 1st, before bolting on
more stuff.

The driver-split

The Geode CPU and the PC-87366 Super-IO chip have GPIO units which share a
common pin-architecture (same pin features, with same bits controlling), but
with different addressing mechanics and port organizations.

The vintage driver expresses the pin capabilities with pin-mode commands
[OoPpTt],etc that change the pin configurations, and since the 2 chips share
pin-arch, we can reuse the read(), write() commands, once the implementation
is suitably adjusted.

The patchset adds a vtable: struct nsc_gpio_ops, to abstract the existing gpio
operations, then adjusts fileops.write() code to invoke operations via that
vtable.  Driver specific open()s set private_data to the vtable so its
available for use by write().

The vtable gets the gpio_dump() too, since its user-friendly, and (could be
construed as) part of the current device-file interface.  To support use of
dev_dbg() in write() & _dump(), the vtable gets a dev ptr too, set by both
scx200 & pc8736x _gpio drivers.

heres how the pins are presented in syslog:

[ 1890.176223]  scx200_gpio.0: io00: 0x0044 TS OD PUE  EDGE LO DEBOUNCE
[ 1890.287223]  scx200_gpio.0: io01: 0x0003 OE PP PUD  EDGE LO

nsc_gpio.c: new file is new home of several file-ops methods, which are
modified to get their vtable from filp->private_data, and use it where needed.

scx200_gpio.c: keeps some of its existing gpio routines, but now wires them up
via the vtable (they're invoked by nsc_gpio.c:nsc_gpio_write() thru this
vtable).  A driver-spcific open() initializes filp->private_data with the
vtable.

Once the split is clean, and the scx200_gpio driver is working, we copy and
modify the function and variable names, and rework the access-method bodies
for the different addressing scheme.

Heres a working overview of the patchset:

# series file for GPIO

# Spring Cleaning
gpio-scx/patch.preclean        # scripts/Lindent fixes, editor-ctrl comments

# API Modernization

gpio-scx/patch.api26        # what I learned from LDD3
gpio-scx/patch.platform-dev-2    # get pdev, support for dev_dbg()
gpio-scx/patch.unsigned-minor    # fix to match std practice

# Debuggability

gpio-scx/patch.dump-diet    # shrink gpio_dump()
gpio-scx/patch.viewpins        # add new 'command' to call dump()
gpio-scx/patch.init-refactor    # pull shadow-register init to sub

# Access-Abstraction (add vtable)

gpio-scx/patch.access-vtable    # introduce nsg_gpio_ops vtable, w dump
gpio-scx/patch.vtable-calls    # add & use the vtable in scx200_gpio
gpio-scx/patch.nscgpio-shell    # add empty driver for common-fops

# move code under abstraction
gpio-scx/patch.migrate-fops    # move file-ops methods from scx200_gpio
gpio-scx/patch.common-dump    # mv scx200.c:scx200_gpio_dump() to nsc_gpio.c
gpio-scx/patch.add-pc8736x-gpio    # add new driver, like old, w chip adapt
# gpio-scx/patch.add-DEBUG    # enable all dev_dbg()s

# Cleanups

# finish printk -> dev_dbg() etc
gpio-scx/patch.pdev-pc8736x    # new drvr needs pdev too,
gpio-scx/patch.devdbg-nscgpio    # add device to 'vtable', use in dev_dbg()

# gpio-scx/patch.pin-config-view    # another 'c' 'command'
# gpio-scx/quiet-getset        # take out excess dbg stuff (pretty quiet
now)
gpio-scx/patch.shadow-current    # imitate scx200_gpio's shadow regs in
pc87*

# post KMentors-post patches ..

gpio-scx/patch.mutexes        # use mutexes for config-locks
gpio-scx/patch.viewpins-values    # extend dump to obsolete separate 'c' cmd

gpio-scx/patch.kconfig        # add stuff for kbuild

# TBC
# combine api26 with pdev, which is just one step.
# merge c&v commands to single do-all-fn
# delay viewpins, dump-diet should also un-ifdef it too.

diff.sys-gpio-rollup-1

This patch:

Removed editor format-control comments, and used scripts/Lindent to clean up
whitespace, then deleted the bogus chunks :-(

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:42 -07:00
Chandra Seetharaman
5a67e4c5b6 [PATCH] cpu hotplug: use hotplug version of cpu notifier in appropriate places
Make use the of newly defined hotplug version of cpu_notifier functionality
wherever appropriate.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:41 -07:00
Chandra Seetharaman
74b85f3790 [PATCH] cpu hotplug: make cpu_notifier related notifier blocks __cpuinit only
Make notifier_blocks associated with cpu_notifier as __cpuinitdata.

__cpuinitdata makes sure that the data is init time only unless
CONFIG_HOTPLUG_CPU is defined.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:41 -07:00
Chandra Seetharaman
054cc8a2d8 [PATCH] cpu hotplug: revert initdata patch submitted for 2.6.17
This patch reverts notifier_block changes made in 2.6.17

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:41 -07:00
Chandra Seetharaman
9c7b216d23 [PATCH] cpu hotplug: revert init patch submitted for 2.6.17
In 2.6.17, there was a problem with cpu_notifiers and XFS.  I provided a
band-aid solution to solve that problem.  In the process, i undid all the
changes you both were making to ensure that these notifiers were available
only at init time (unless CONFIG_HOTPLUG_CPU is defined).

We deferred the real fix to 2.6.18.  Here is a set of patches that fixes the
XFS problem cleanly and makes the cpu notifiers available only at init time
(unless CONFIG_HOTPLUG_CPU is defined).

If CONFIG_HOTPLUG_CPU is defined then cpu notifiers are available at run
time.

This patch reverts the notifier_call changes made in 2.6.17

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:40 -07:00
Ingo Molnar
34af946a22 [PATCH] spin/rwlock init cleanups
locking init cleanups:

 - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK()
 - convert rwlocks in a similar manner

this patch was generated automatically.

Motivation:

 - cleanliness
 - lockdep needs control of lock initialization, which the open-coded
   variants do not give
 - it's also useful for -rt and for lock debugging in general

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:39 -07:00
Randy Dunlap
c9cf55285e [PATCH] add poison.h and patch primary users
Localize poison values into one header file for better documentation and
easier/quicker debugging and so that the same values won't be used for
multiple purposes.

Use these constants in core arch., mm, driver, and fs code.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Matt Mackall <mpm@selenic.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:38 -07:00
Ingo Molnar
e6e5494cb2 [PATCH] vdso: randomize the i386 vDSO by moving it into a vma
Move the i386 VDSO down into a vma and thus randomize it.

Besides the security implications, this feature also helps debuggers, which
can COW a vma-backed VDSO just like a normal DSO and can thus do
single-stepping and other debugging features.

It's good for hypervisors (Xen, VMWare) too, which typically live in the same
high-mapped address space as the VDSO, hence whenever the VDSO is used, they
get lots of guest pagefaults and have to fix such guest accesses up - which
slows things down instead of speeding things up (the primary purpose of the
VDSO).

There's a new CONFIG_COMPAT_VDSO (default=y) option, which provides support
for older glibcs that still rely on a prelinked high-mapped VDSO.  Newer
distributions (using glibc 2.3.3 or later) can turn this option off.  Turning
it off is also recommended for security reasons: attackers cannot use the
predictable high-mapped VDSO page as syscall trampoline anymore.

There is a new vdso=[0|1] boot option as well, and a runtime
/proc/sys/vm/vdso_enabled sysctl switch, that allows the VDSO to be turned
on/off.

(This version of the VDSO-randomization patch also has working ELF
coredumping, the previous patch crashed in the coredumping code.)

This code is a combined work of the exec-shield VDSO randomization
code and Gerd Hoffmann's hypervisor-centric VDSO patch. Rusty Russell
started this patch and i completed it.

[akpm@osdl.org: cleanups]
[akpm@osdl.org: compile fix]
[akpm@osdl.org: compile fix 2]
[akpm@osdl.org: compile fix 3]
[akpm@osdl.org: revernt MAXMEM change]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Cc: Gerd Hoffmann <kraxel@suse.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:38 -07:00
James Bottomley
d5fb34261d [PATCH] voyager: fix compile after setup rework
The following

[PATCH] Clean up and refactor i386 sub-architecture setup

Doesn't quite work, since it leaves out an include of asm/io.h, without
which the use of inb/outb in the setup file won.t work.  This corrects that
and also removes a spurious acpi reference that apparently crept in ages
ago but should never have been there.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:38 -07:00
James Bottomley
96c5274903 [PATCH] fix subarchitecture breakage with CONFIG_SCHED_SMT
Commit 1e9f28fa1e ("[PATCH] sched: new
sched domain for representing multi-core") incorrectly made SCHED_SMT
and some of the structures it uses dependent on SMP.

However, this is wrong, the structures are only defined if X86_HT, so
SCHED_SMT has to depend on that as well.

The patch broke voyager, since it doesn't provide any of the multi-core
or hyperthreading structures.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:38 -07:00
Aleksey Gorelov
4031ff3881 [PATCH] fix broken vm86 interrupt/signal handling
Commit c3ff8ec31c ("[PATCH] i386: Don't
miss pending signals returning to user mode after signal processing")
meant that vm86 interrupt/signal handling got broken for the case when
vm86 is called from kernel space.

In this scenario, if signal is pending because of vm86 interrupt,
do_notify_resume/do_signal exits immediately due to user_mode() check,
without processing any signals.  Thus, resume_userspace handler is spinning
in a tight loop with signal pending and TIF_SIGPENDING is set.  Previously
everything worked Ok.

No in-tree usage of vm86() from kernel space exists, but I've heard
about a number of projects out there which use vm86 calls from kernel,
one of them being this, for instance:

	http://dev.gentoo.org/~spock/projects/vesafb-tng/

The following patch fixes the issue.

Signed-off-by: Aleksey Gorelov <aleksey_gorelov@phoenix.com>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:38 -07:00
Rohit Seth
4b89aff930 [PATCH] i386: move phys_proc_id and cpu_core_id to cpuinfo_x86
Move the phys_core_id and cpu_core_id to cpuinfo_x86 structure.  Similar
patch for x86_64 is already accepted by Andi earlier this week.

[akpm@osdl.org: fix warning]
Signed-off-by: Rohit Seth <rohitseth@google.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:37 -07:00
Andreas Mohr
7f35bf929f [PATCH] x86: constify some parts of arch/i386/kernel/cpu/
Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:37 -07:00
Rusty Russell
19eadf98c8 [PATCH] x86: increase interrupt vector range
Remove the limit of 256 interrupt vectors by changing the value stored in
orig_{e,r}ax to be the complemented interrupt vector.  The orig_{e,r}ax
needs to be < 0 to allow the signal code to distinguish between return from
interrupt and return from syscall.  With this change applied, NR_IRQS can
be > 256.

Xen extends the IRQ numbering space to include room for dynamically
allocated virtual interrupts (in the range 256-511), which requires a more
permissive interface to do_IRQ.

Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Protasevich, Natalie" <Natalie.Protasevich@UNISYS.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:37 -07:00
Shaohua Li
bd9e0b74f5 [PATCH] x86: cpu_init(): avoid GFP_KERNEL allocation while atomic
The patch fixes two issues:

1.  cpu_init is called with interrupt disabled.  Allocating gdt table
   there isn't good at runtime.

2. gdt table page cause memory leak in CPU hotplug case.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:37 -07:00
KAMEZAWA Hiroyuki
76b67ed9dc [PATCH] node hotplug: register cpu: remove node struct
With Goto-san's patch, we can add new pgdat/node at runtime.  I'm now
considering node-hot-add with cpu + memory on ACPI.

I found acpi container, which describes node, could evaluate cpu before
memory. This means cpu-hot-add occurs before memory hot add.

In most part, cpu-hot-add doesn't depend on node hot add.  But register_cpu(),
which creates symbolic link from node to cpu, requires that node should be
onlined before register_cpu().  When a node is onlined, its pgdat should be
there.

This patch-set holds off creating symbolic link from node to cpu
until node is onlined.

This removes node arguments from register_cpu().

Now, register_cpu() requires 'struct node' as its argument.  But the array of
struct node is now unified in driver/base/node.c now (By Goto's node hotplug
patch).  We can get struct node in generic way.  So, this argument is not
necessary now.

This patch also guarantees add cpu under node only when node is onlined.  It
is necessary for node-hot-add vs.  cpu-hot-add patch following this.

Moreover, register_cpu calculates cpu->node_id by cpu_to_node() without regard
to its 'struct node *root' argument.  This patch removes it.

Also modify callers of register_cpu()/unregister_cpu, whose args are changed
by register-cpu-remove-node-struct patch.

[Brice.Goglin@ens-lyon.org: fix it]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:37 -07:00
Yasunori Goto
dd0932d9d4 [PATCH] pgdat allocation and update for ia64 of memory hotplug: allocate pgdat and per node data
This is a patch to allocate pgdat and per node data area for ia64.  The size
for them can be calculated by compute_pernodesize().

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:37 -07:00
Yasunori Goto
7049027c6f [PATCH] pgdat allocation and update for ia64 of memory hotplug: update pgdat address array
This is to refresh node_data[] array for ia64.  As I mentioned previous
patches, ia64 has copies of information of pgdat address array on each node as
per node data.

At v2 of node_add, this function used stop_machine_run() to update them.  (I
wished that they were copied safety as much as possible.) But, in this patch,
this arrays are just copied simply, and set node_online_map bit after
completion of pgdat initialization.

So, kernel must touch NODE_DATA() macro after checking node_online_map().
(Current code has already done it.) This is more simple way for just
hot-add.....

Note : It will be problem when hot-remove will occur,
       because, even if online_map bit is set, kernel may
       touch NODE_DATA() due to race condition. :-(

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:37 -07:00
Yasunori Goto
ae5a2c1c9b [PATCH] pgdat allocation and update for ia64 of memory hotplug: hold pgdat address at system running
This is a preparatory patch to make common code for updating of NODE_DATA() of
ia64 between boottime and hotplug.

Current code remembers pgdat address in mem_data which is used at just boot
time.  But its information can be used at hotplug time by moving to global
value.  The next patch uses this array.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:36 -07:00
Yasunori Goto
0fc44159bf [PATCH] Register sysfs file for hotplugged new node
When new node becomes enable by hot-add, new sysfs file must be created for
new node.  So, if new node is enabled by add_memory(), register_one_node() is
called to create it.  In addition, I386's arch_register_node() and a part of
register_nodes() of powerpc are consolidated to register_one_node() as a
generic_code().

This is tested by Tiger4(IPF) with node hot-plug emulation.

Signed-off-by: Keiichiro Tokunaga <tokuanga.keiich@jp.fujitsu.com>
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:36 -07:00
Yasunori Goto
10ad400b49 [PATCH] pgdat allocation for new node add (refresh node_data[])
Refresh NODE_DATA() for generic archs.  In this case, NODE_DATA(nid) ==
node_data[nid].  node_data[] is array of address of pgdat.  So, refresh is
quite simple.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:36 -07:00
Yasunori Goto
bc02af93dd [PATCH] pgdat allocation for new node add (specify node id)
Change the name of old add_memory() to arch_add_memory.  And use node id to
get pgdat for the node at NODE_DATA().

Note: Powerpc's old add_memory() is defined as __devinit. However,
      add_memory() is usually called only after bootup.
      I suppose it may be redundant. But, I'm not well known about powerpc.
      So, I keep it. (But, __meminit is better at least.)

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:35 -07:00
Linus Torvalds
f6e6e88373 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 3657/1: S3C24XX: Documentation update of Overview.txt
  [ARM] Update mach-types
  [ARM] 3656/1: S3C2412: Add S3C2412 and S3C2413 documenation
  [ARM] 3654/1: add ajeco 1arm sbc support
  [ARM] fix drivers/mfd/ucb1x00-core.c IRQ probing bug
  [ARM] 3651/1: S3C24XX: Make arch list more detailed
  [ARM] 3650/1: S3C2412: Update s3c2410_defconfig
  [ARM] 3649/1: S3C24XX: Fix capitalisation of CPU on SMDK2440
  [ARM] 3612/1: make pci bus optional for ixp4xx platform
  [ARM] Remove MODE_(SVC|IRQ|FIQ|USR) and DEFAULT_FIQ
  [ARM] Remove save_lr/restore_pc macros
  [ARM] Remove partial non-v6 binutils compatibility
  [ARM] Remove LOADREGS macro
  [ARM] Remove RETINSTR macro
2006-06-26 15:01:05 -07:00
Russell King
18555656de [ARM] Update mach-types
Usual mach-types update.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-26 22:50:21 +01:00
Linus Torvalds
da206c9e68 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
  typo fixes
  Clean up 'inline is not at beginning' warnings for usb storage
  Storage class should be first
  i386: Trivial typo fixes
  ixj: make ixj_set_tone_off() static
  spelling fixes
  fix paniced->panicked typos
  Spelling fixes for Documentation/atomic_ops.txt
  move acknowledgment for Mark Adler to CREDITS
  remove the bouncing email address of David Campbell
2006-06-26 13:33:14 -07:00
Linus Torvalds
2a2ed2db35 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (40 commits)
  kbuild: trivial fixes in Makefile
  kbuild: adding symbols in Kconfig and defconfig to TAGS
  kbuild: replace abort() with exit(1)
  kbuild: support for %.symtypes files
  kbuild: fix silentoldconfig recursion
  kbuild: add option for stripping modules while installing them
  kbuild: kill some false positives from modpost
  kbuild: export-symbol usage report generator
  kbuild: fix make -rR breakage
  kbuild: append -dirty for updated but uncommited changes
  kbuild: append git revision for all untagged commits
  kbuild: fix module.symvers parsing in modpost
  kbuild: ignore make's built-in rules & variables
  kbuild: bugfix with initramfs
  kbuild: modpost build fix
  kbuild: check license compatibility when building modules
  kbuild: export-type enhancement to modpost.c
  kbuild: add dependency on kernel.release to the package targets
  kbuild: `make kernelrelease' speedup
  kconfig: KCONFIG_OVERWRITECONFIG
  ...
2006-06-26 11:05:15 -07:00
Linus Torvalds
972d19e837 Merge master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  [CRYPTO] tcrypt: Forbid tcrypt from being built-in
  [CRYPTO] aes: Add wrappers for assembly routines
  [CRYPTO] tcrypt: Speed benchmark support for digest algorithms
  [CRYPTO] tcrypt: Return -EAGAIN from module_init()
  [CRYPTO] api: Allow replacement when registering new algorithms
  [CRYPTO] api: Removed const from cra_name/cra_driver_name
  [CRYPTO] api: Added cra_init/cra_exit
  [CRYPTO] api: Fixed incorrect passing of context instead of tfm
  [CRYPTO] padlock: Rearrange context structure to reduce code size
  [CRYPTO] all: Pass tfm instead of ctx to algorithms
  [CRYPTO] digest: Remove unnecessary zeroing during init
  [CRYPTO] aes-i586: Get rid of useless function wrappers
  [CRYPTO] digest: Add alignment handling
  [CRYPTO] khazad: Use 32-bit reads on key
2006-06-26 11:03:29 -07:00
Greg Ungerer
12ddae3348 [PATCH] m68knommu: use configurable RAM setup in start up code
Change to using a configurable RAM setup in startup code. This cleans up
the whole RAM base/sizing issue, and removes a lot of board specific code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 10:59:07 -07:00
Greg Ungerer
73e2fba8dc [PATCH] m68knommu: use configurable RAM setup in linker script
Remove the fixed RAM configurations for each board type from the
linker script. Replace with simple defines usng the flexible RAM
configuration options. This cleans out of lot of board specific
munging of addresses.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 10:59:07 -07:00
Greg Ungerer
63e413d19d [PATCH] m68knommu: create configurable RAM setup
Reworked the way RAM regions are defined. Instead of coding all the
variations for each board type we now just configure RAM base and size
in the usual Kconfig setup. This much simplifies the code, and makes it
a lot more flexible when setting up new boards or board varients.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 10:59:07 -07:00
Greg Ungerer
d2f386d7c1 [PATCH] m68knommu: remove unused vars from generic 68328 start code
Clean out unused variable definitions from 68328 start up code.
Also use a more appropriate start address for the case of relocating
the kernel code to RAM (from ROM/flash).

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 10:59:07 -07:00
Greg Ungerer
2ae9cb6bd4 [PATCH] m68knommu: remove __ramvec from 68328/pilot start code
__ramvec has been removed from the linker script. The vector base
address is defined as a configurable option, use that. Remove its
use from the 68328/pilot startup code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 10:59:07 -07:00