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3293 commits

Author SHA1 Message Date
Tony Breeds
e7bda183d4 [POWERPC] Fix build failure when CONFIG_VIRT_CPU_ACCOUNTING is not defined
Without this patch I get the following build failure
  CC      arch/powerpc/platforms/celleb/setup.o
arch/powerpc/platforms/celleb/setup.c:151: error: 'generic_calibrate_decr' undeclared here (not in a function)

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:31 +11:00
will schmidt
aa39be09df [POWERPC] Include udbg.h when using udbg_printf
This fixes the error
	error: implicit declaration of function "udbg_printf"

We have a few spots where we reference udbg_printf() without #including
udbg.h.  These are within #ifdef DEBUG blocks, so unnoticed until we do
a #define DEBUG or #define DEBUG_LOW nearby.

Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:31 +11:00
Benjamin Herrenschmidt
20474abda6 [POWERPC] Fix cache line vs. block size confusion
We had an historical confusion in the kernel between cache line
and cache block size. The former is an implementation detail of
the L1 cache which can be useful for performance optimisations,
the later is the actual size on which the cache control
instructions operate, which can be different.

For some reason, we had a weird hack reading the right property
on powermac and the wrong one on any other 64 bits (32 bits is
unaffected as it only uses the cputable for cache block size
infos at this stage).

This fixes the booting-without-of.txt documentation to mention
the right properties, and fixes the 64 bits initialization code
to look for the block size first, with a fallback to the line
size if the property is missing.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:30 +11:00
Alexey Dobriyan
fb293ae1c0 [POWERPC] Fix sysctl table check failure on PowerMac
kernel was marked with 0755. Everywhere else it's 0555.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:30 +11:00
Olof Johansson
4bfac36891 [POWERPC] Fix CONFIG_SMP=n build break
Fix two build errors on powerpc allyesconfig + CONFIG_SMP=n:

arch/powerpc/platforms/built-in.o: In function `cpu_affinity_set':
arch/powerpc/platforms/cell/spu_priv1_mmio.c:78: undefined reference to `.iic_get_target_id'
arch/powerpc/platforms/built-in.o: In function `iic_init_IRQ':
arch/powerpc/platforms/cell/interrupt.c:397: undefined reference to `.iic_setup_cpu'

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:30 +11:00
Scott Wood
aeb4552fad [POWERPC] bootwrapper: Revert ps3 binary flag usage, and remove .bin suffix
The ps3 target produces two images, and the binary one is not the
"primary" image that corresponds to the -o flag; thus, it no longer
uses the generic binary flag.

On platforms which do use the binary flag, it no longer produces a
.bin suffix, so that the output file matches what was passed to the -o flag.

This should fix the zImage ln problems for the ps3 target.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:30 +11:00
Dale Farnsworth
d102c9d5d3 [POWERPC] Fix mv643xx_pci sysfs .read and .write functions
Commit 91a69029 introduced an additional parameter to the .read and .write
methods for sysfs binary attributes.  Two mv64x60_pci functions
were missed in that patch, resulting in these errors:
	/cache/git/linux-2.6/arch/powerpc/sysdev/mv64x60_pci.c:77: warning: initialization from incompatible pointer type
	/cache/git/linux-2.6/arch/powerpc/sysdev/mv64x60_pci.c:78: warning: initialization from incompatible pointer type

Add the missing "struct bin_attribute *" parameter.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:29 +11:00
Aurelien Jarno
3a800ff50a [POWERPC] i8259: Add disable method
Since commit 76d2160147, the NE2000 card
is not working anymore on PPC and POWERPC and produces WATCHDOG
timeouts.

The patch below fixes that the same way it has been done on x86, x86_64
and MIPS.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:29 +11:00
Michael Ellerman
1db3e890ae [POWERPC] Read back MSI message in rtas_setup_msi_irqs() so restore works
There are plans afoot to use pci_restore_msi_state() to restore MSI
state after a device reset.  In order for this to work for the RTAS MSI
backend, we need to read back the MSI message from config space after
it has been setup by firmware.

This should be sufficient for restoring the MSI state after a device
reset, however we will need to revisit this for suspend to disk if that
is ever implemented on pseries.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08 14:15:29 +11:00
Benjamin Herrenschmidt
f6ab0b922c [POWERPC] powerpc: Fix demotion of segments to 4K pages
When demoting a process to use 4K HW pages (instead of 64K), which
happens under various circumstances such as doing cache inhibited
mappings on machines that do not support 64K CI pages, the assembly
hash code calls back into the C function flush_hash_page().  This
function prototype was recently changed to accomodate for 1T segments
but the assembly call site was not updated, causing applications that
do demotion to hang.  In addition, when updating the per-CPU PACA for
the new sizes, we didn't properly update the slice "map", thus causing
the SLB miss code to re-insert segments for the wrong size.

This fixes both and adds a warning comment next to the C
implementation to try to avoid problems next time someone changes it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-29 14:34:14 +11:00
Paul Mackerras
786d3693f4 Merge branch 'for-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge 2007-10-23 22:20:51 +10:00
Linus Torvalds
8b0eaccab4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Enable restart support for lite5200 board
  [POWERPC] Add restart support for mpc52xx based platforms
  [POWERPC] Update device tree binding for mpc5200 gpt
  [POWERPC] Add mpc52xx_find_and_map_path(), refactor utility functions
  [POWERPC] bestcomm: Restrict bus prefetch bugfix to original mpc5200 silicon.
2007-10-22 19:21:54 -07:00
Jens Axboe
58b053e4ce Update arch/ to use sg helpers
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22 21:19:59 +02:00
Marian Balakowicz
9dda78b711 [POWERPC] Enable restart support for lite5200 board
Use the watchdog timer to implement board restart support.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-21 12:43:14 -06:00
Marian Balakowicz
86b92cdda9 [POWERPC] Add restart support for mpc52xx based platforms
Add common helper routines: mpc52xx_map_wdt() and mpc52xx_restart().

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-21 12:43:04 -06:00
Marian Balakowicz
d24bc314c9 [POWERPC] Update device tree binding for mpc5200 gpt
Add 'fsl,' prefix to 'compatible' property for gpt nodes.
Add 'fsl,' prefix to empty, GPT0 specific 'has-wdt' property.
The fsl, prefix is being added to better match the convention of prefixing
manufacturer specific properties and values with the vendors name.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-21 12:42:55 -06:00
Marian Balakowicz
c5c01c9700 [POWERPC] Add mpc52xx_find_and_map_path(), refactor utility functions
Add helper routine mpc52xx_find_and_map_path(). Extract common code to
mpc52xx_map_node() and refactor mpc52xx_find_and_map().

Signed-off-by: Jan Wrobel <wrr@semihalf.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-21 12:42:47 -06:00
Grant Likely
c052a22e80 [POWERPC] bestcomm: Restrict bus prefetch bugfix to original mpc5200 silicon.
Only the MPC5200 needs this bug fix.  MPC5200B is okay.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-21 10:52:02 -06:00
Matt LaPlante
01dd2fbf0d typo fixes
Most of these fixes were already submitted for old kernel versions, and were
approved, but for some reason they never made it into the releases.

Because this is a consolidation of a couple old missed patches, it touches both
Kconfigs and documentation texts.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-20 01:34:40 +02:00
Jean Delvare
c03983ac9b Spelling fix: explicitly
From: Jean Delvare <khali@linux-fr.org>

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:22:55 +02:00
Jan Engelhardt
96de0e252c Convert files to UTF-8 and some cleanups
* Convert files to UTF-8.

  * Also correct some people's names
    (one example is Eißfeldt, which was found in a source file.
    Given that the author used an ß at all in a source file
    indicates that the real name has in fact a 'ß' and not an 'ss',
    which is commonly used as a substitute for 'ß' when limited to
    7bit.)

  * Correct town names (Goettingen -> Göttingen)

  * Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313)

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:21:04 +02:00
Josh Boyer
739253765e [POWERPC] 4xx: Enable EMAC on Bamboo board
Fix some device tree omissions that prevented the new EMAC driver from
setting up ethernet on the Bamboo board correctly and update the Bamboo
defconfig.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-19 16:18:35 -05:00
Josh Boyer
b3af7a55da [POWERPC] 4xx: Enable EMAC for PPC405 Walnut board
This patch enables the ibm_newemac driver for the Walnut board.  It fixes the
device tree for the walnut board to order the MAL interrupts correctly and
adds the local-mac-address property to the EMAC node.  The bootwrapper is also
updated to extract the MAC address from the OpenBIOS offset where it is stored.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-19 16:18:33 -05:00
Josh Boyer
094624fa66 [POWERPC] 4xx: Fix timebase clock selection on Walnut
The current bootwrapper fails to set the timebase clock to the CPU clock
which causes the time to increment incorrectly.  This fixes it by using the
correct #define for the CPC0_CR1 register.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-19 16:18:31 -05:00
Josh Boyer
16fdad334c [POWERPC] 4xx: Enable EMAC on the PPC 440GP Ebony board
Update the Ebony defconfig to enable the ibm_newemac driver.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-19 16:18:29 -05:00
Valentine Barshak
1d5499b5ac [POWERPC] 4xx: Split early debug output and early boot console for 44x
Currently there's no way to enable early boot console on PowerPC 44x
not specifying uart's physical address in kernel config, which is used
for very early debug messages. This patch splits very early debug output
(which needs uart physical address in kernel config) and early boot console
(which searches for uarts in the device tree using find_legacy_serial_ports).
We enable early boot console for all 44x processors, while (dangerous)
early debug is user-selectable.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-19 16:18:18 -05:00
Valentine Barshak
b7c1dfba0c [POWERPC] 4xx: Enable NEW EMAC support for Sequoia 440EPx.
This patch enables NEW EMAC support for PowerPC 440EPx Sequoia board.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-19 16:17:20 -05:00
Valentine Barshak
1f69dcfdae [POWERPC] 4xx: Add RGMII support for Sequoia 440EPx
This adds RGMII support to Sequoia DTS and sets correct phy-mode
for EMACs. According to Sequoia datasheet, both ethernet ports
are connected to RGMII interface, while ZMII is used only for MDIO.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-19 16:17:08 -05:00
Robert P. J. Day
3a4fa0a25d Fix misspellings of "system", "controller", "interrupt" and "necessary".
Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-19 23:10:43 +02:00
Mathieu Desnoyers
09cadedbdc Combine instrumentation menus in kernel/Kconfig.instrumentation
Quoting Randy:

"It seems sad that this patch sources Kconfig.marker, a 7-line file,
20-something times.  Yes, you (we) don't want to put those 7 lines into
20-something different files, so sourcing is the right thing.

However, what you did for avr32 seems more on the right track to me: make
_one_ Instrumentation support menu that includes PROFILING, OPROFILE, KPROBES,
and MARKERS and then use (source) that in all of the arches."

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:54 -07:00
Bernhard Walle
edd8ce6743 Use extended crashkernel command line on ppc64
This patch adapts the ppc64 code to use the generic parse_crashkernel()
function introduced in the generic patch of that series.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Vivek Goyal <vgoyal@in.ibm.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>
2007-10-19 11:53:51 -07:00
Alexey Dobriyan
19c5870c0e Use helpers to obtain task pid in printks (arch code)
One of the easiest things to isolate is the pid printed in kernel log.
There was a patch, that made this for arch-independent code, this one makes
so for arch/xxx files.

It took some time to cross-compile it, but hopefully these are all the
printks in arch code.

Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:43 -07:00
Jiri Slaby
1977f03272 remove asm/bitops.h includes
remove asm/bitops.h includes

including asm/bitops directly may cause compile errors. don't include it
and include linux/bitops instead. next patch will deny including asm header
directly.

Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:41 -07:00
Serge E. Hallyn
b460cbc581 pid namespaces: define is_global_init() and is_container_init()
is_init() is an ambiguous name for the pid==1 check.  Split it into
is_global_init() and is_container_init().

A cgroup init has it's tsk->pid == 1.

A global init also has it's tsk->pid == 1 and it's active pid namespace
is the init_pid_ns.  But rather than check the active pid namespace,
compare the task structure with 'init_pid_ns.child_reaper', which is
initialized during boot to the /sbin/init process and never changes.

Changelog:

	2.6.22-rc4-mm2-pidns1:
	- Use 'init_pid_ns.child_reaper' to determine if a given task is the
	  global init (/sbin/init) process. This would improve performance
	  and remove dependence on the task_pid().

	2.6.21-mm2-pidns2:

	- [Sukadev Bhattiprolu] Changed is_container_init() calls in {powerpc,
	  ppc,avr32}/traps.c for the _exception() call to is_global_init().
	  This way, we kill only the cgroup if the cgroup's init has a
	  bug rather than force a kernel panic.

[akpm@linux-foundation.org: fix comment]
[sukadev@us.ibm.com: Use is_global_init() in arch/m32r/mm/fault.c]
[bunk@stusta.de: kernel/pid.c: remove unused exports]
[sukadev@us.ibm.com: Fix capability.c to work with threaded init]
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Acked-by: Pavel Emelianov <xemul@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Herbert Poetzel <herbert@13thfloor.at>
Cc: Kirill Korotaev <dev@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:37 -07:00
Paul Jackson
c2e2c7fa1c task cgroups: enable cgroups by default in some configs
In pre-cgroup cpusets, a few config files enabled cpusets by default.

Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:36 -07:00
Michael Neuling
4603ac180a powerpc: add scaled time accounting
This adds POWERPC specific hooks for scaled time accounting.

POWER6 includes a SPURR register.  The SPURR is based off the PURR register
but is scaled based on CPU frequency and issue rates.  This gives a more
accurate account of the instructions used per task.  The PURR and timebase
will be constant relative to the wall clock, irrespective of the CPU
frequency.

This implementation reads the SPURR register in account_system_vtime which
is only call called on context witch and hard and soft irq entry and exit.
The percentage of user and system time is then estimated using the ratio of
these accounted by the PURR.  If the SPURR is not present, the PURR read.

An earlier implementation of this patch read the SPURR whenever the PURR
was read, which included the system call entry and exit path.
Unfortunately this showed a performance regression on lmbench runs, so was
re-implemented.

I've included the lmbench results here when run bare metal on POWER6.  1st
column is the unpatch results.  2nd column is the results using the below
patch and the 3rd is the % diff of these results from the base.  4th and
5th columns are the results and % differnce from the base using the older
patch (SPURR read in syscall entry/exit path).

                              Base        Scaled-Acct     SPURR-in-syscall
                             Result      Result  % diff    Result % diff
Simple syscall:              0.3086      0.3086  0.0000    0.3452 11.8600
Simple read:                 0.4591      0.4671  1.7425    0.5044 9.86713
Simple write:                0.4364      0.4366  0.0458    0.4731 8.40971
Simple stat:                 2.0055      2.0295  1.1967    2.0669 3.06158
Simple fstat:                0.5962      0.5876  -1.442    0.6368 6.80979
Simple open/close:           3.1283      3.1009  -0.875    3.2088 2.57328
Select on 10 fd's:           0.8554      0.8457  -1.133    0.8667 1.32101
Select on 100 fd's:          3.5292      3.6329  2.9383    3.6664 3.88756
Select on 250 fd's:          7.9097      8.1881  3.5197    8.2242 3.97613
Select on 500 fd's:          15.2659     15.836  3.7357    15.873 3.97814
Select on 10 tcp fd's:       0.9576      0.9416  -1.670    0.9752 1.83792
Select on 100 tcp fd's:      7.248       7.2254  -0.311    7.2685 0.28283
Select on 250 tcp fd's:      17.7742     17.707  -0.375    17.749 -0.1406
Select on 500 tcp fd's:      35.4258     35.25   -0.496    35.286 -0.3929
Signal handler installation: 0.6131      0.6075  -0.913    0.647  5.52927
Signal handler overhead:     2.0919      2.1078  0.7600    2.1831 4.35967
Protection fault:            0.7345      0.7478  1.8107    0.8031 9.33968
Pipe latency:                33.006      16.398  -50.31    33.475 1.42368
AF_UNIX sock stream latency: 14.5093     30.910  113.03    30.715 111.692
Process fork+exit:           219.8       222.8   1.3648    229.37 4.35623
Process fork+execve:         876.14      873.28  -0.32     868.66 -0.8533
Process fork+/bin/sh -c:     2830        2876.5  1.6431    2958   4.52296
File /var/tmp/XXX write bw:  1193497     1195536 0.1708    118657 -0.5799
Pagefaults on /var/tmp/XXX:  3.1272      3.2117  2.7020    3.2521 3.99398

Also, kernel compile times show no difference with this patch applied.

[pbadari@us.ibm.com: Avoid unnecessary PURR reading]
Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:28 -07:00
Andres Salomon
8f4ce8c32f serial: turn serial console suspend a boot rather than compile time option
Currently, there's a CONFIG_DISABLE_CONSOLE_SUSPEND that allows one to stop
the serial console from being suspended when the rest of the machine goes
to sleep.  This is incredibly useful for debugging power management-related
things; however, having it as a compile-time option has proved to be
incredibly inconvenient for us (OLPC).  There are plenty of times that we
want serial console to not suspend, but for the most part we'd like serial
console to be suspended.

This drops CONFIG_DISABLE_CONSOLE_SUSPEND, and replaces it with a kernel
boot parameter (no_console_suspend).  By default, the serial console will
be suspended along with the rest of the system; by passing
'no_console_suspend' to the kernel during boot, serial console will remain
alive during suspend.

For now, this is pretty serial console specific; further fixes could be
applied to make this work for things like netconsole.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Nigel Cunningham <nigel@suspend2.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:19 -07:00
Rafael J. Wysocki
e6c5eb9541 PM: Rework struct platform_suspend_ops
There is no reason why the .prepare() and .finish() methods in 'struct
platform_suspend_ops' should take any arguments, since architectures don't use
these methods' argument in any practically meaningful way (ie.  either the
target system sleep state is conveyed to the platform by .set_target(), or
there is only one suspend state supported and it is indicated to the PM core
by .valid(), or .prepare() and .finish() aren't defined at all).   There also
is no reason why .finish() should return any result.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:18 -07:00
Rafael J. Wysocki
26398a70ea PM: Rename struct pm_ops and related things
The name of 'struct pm_ops' suggests that it is related to the power
management in general, but in fact it is only related to suspend.   Moreover,
its name should indicate what this structure is used for, so it seems
reasonable to change it to 'struct platform_suspend_ops'.   In that case, the
name of the global variable of this type used by the PM core and the names of
related functions should be changed accordingly.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:18 -07:00
Rafael J. Wysocki
95d9ffbe01 PM: Move definition of struct pm_ops to suspend.h
Move the definition of 'struct pm_ops' and related functions from <linux/pm.h>
to <linux/suspend.h> .

There are, at least, the following reasons to do that:
* 'struct pm_ops' is specifically related to suspend and not to the power
  management in general.
* As long as 'struct pm_ops' is defined in <linux/pm.h>, any modification of it
  causes the entire kernel to be recompiled, which is unnecessary and annoying.
* Some suspend-related features are already defined in <linux/suspend.h>, so it
  is logical to move the definition of 'struct pm_ops' into there.
* 'struct hibernation_ops', being the hibernation-related counterpart of
  'struct pm_ops', is defined in <linux/suspend.h> .

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18 14:37:18 -07:00
Linus Torvalds
c548f08a4f Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (24 commits)
  [POWERPC] Fix vmemmap warning in init_64.c
  [POWERPC] Fix 64 bits vDSO DWARF info for CR register
  [POWERPC] Add 1TB workaround for PA6T
  [POWERPC] Enable NO_HZ and high res timers for pseries and ppc64 configs
  [POWERPC] Quieten cache information at boot
  [POWERPC] Quieten clockevent printk
  [POWERPC] Enable SLUB in *_defconfig
  [POWERPC] Fix 1TB segment detection
  [POWERPC] Fix iSeries_hpte_insert prototype
  [POWERPC] Fix copyright symbol
  [POWERPC] ibmebus: Move to of_device and of_platform_driver, match eHCA and eHEA drivers
  [POWERPC] ibmebus: Add device creation and bus probing based on of_device
  [POWERPC] ibmebus: Remove bus match/probe/remove functions
  [POWERPC] Move of_device allocation into of_device.[ch]
  [POWERPC] mpc52xx: device tree changes for FEC and MDIO
  [POWERPC] bestcomm: GenBD task support
  [POWERPC] bestcomm: FEC task support
  [POWERPC] bestcomm: ATA task support
  [POWERPC] bestcomm: core bestcomm support for Freescale MPC5200
  [POWERPC] mpc52xx: Update mpc52xx_psc structure with B revision changes
  ...
2007-10-17 09:05:55 -07:00
Roel Kluin
f7a75f0a40 spin_lock_unlocked cleanups
Replace some SPIN_LOCK_UNLOCKED with DEFINE_SPINLOCK

Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:43:01 -07:00
Adrian Bunk
cba4fbbff2 remove include/asm-*/ipc.h
All asm/ipc.h files do only #include <asm-generic/ipc.h>.

This patch therefore removes all include/asm-*/ipc.h files and moves the
contents of include/asm-generic/ipc.h to include/linux/ipc.h.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:55 -07:00
Roland McGrath
5f149cf0ac powerpc: Use linux/elfcore-compat.h
This makes powerpc64's compat code use the new linux/elfcore-compat.h,
reducing some hand-copied duplication.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Andi Kleen <ak@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:51 -07:00
Olof Johansson
2b571a066a pcmcia: CompactFlash driver for PA Semi Electra boards
Driver for the CompactFlash slot on the PA Semi Electra eval board. It's
a simple device sitting on localbus, with interrupts and detect/voltage
control over GPIO.

The driver is implemented as an of_platform driver, and adds localbus
as a bus being probed by the of_platform framework.

[akpm@linux-foundation.org: cleanups]
[olof@lixom.net: fix build]
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Milton Miller <miltonm@bga.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:48 -07:00
Robert P. J. Day
966fe399cc KCONFIG: Make "Instrumentation support" non-EXPERIMENTAL
It makes more sense to make instrumentation support experimental on a
case-by-case basis.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: Andi Kleen <ak@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:47 -07:00
Christoph Lameter
4ba9b9d0ba Slab API: remove useless ctor parameter and reorder parameters
Slab constructors currently have a flags parameter that is never used.  And
the order of the arguments is opposite to other slab functions.  The object
pointer is placed before the kmem_cache pointer.

Convert

        ctor(void *object, struct kmem_cache *s, unsigned long flags)

to

        ctor(struct kmem_cache *s, void *object)

throughout the kernel

[akpm@linux-foundation.org: coupla fixes]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:45 -07:00
Mark Nelson
1f7d6668c2 powerpc: add Altivec/VMX state to coredumps
Update dump_task_altivec() (which has so far never been put to use) so that
it dumps the Altivec/VMX registers (VR[0] - VR[31], VSCR and VRSAVE) in the
same format as the ptrace get_vrregs(), and add the appropriate glue
typedef and #defines to make it work.

A new note type of NT_PPC_VMX was chosen to be 0x100 (arbitrarily) because
it allows the low range values to be used for more generic purposes and
0x100 seems an adequate starting point for PowerPC extensions.

Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:44 -07:00
Paul Mackerras
4acadb965c Merge branch 'for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-mpc52xx into merge 2007-10-17 22:31:13 +10:00
Paul Mackerras
5cae826e9e Merge branch 'fixes-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into merge 2007-10-17 22:30:43 +10:00