Commit Graph

981 Commits

Author SHA1 Message Date
Alexey Starikovskiy
853298bc03 ACPI: CONFIG_ACPI_SLEEP=n power off regression in 2.6.23-rc8 (NOT in rc7)
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-25 17:58:52 -04:00
Alexey Starikovskiy
2f3f22269b ACPI: suspend: build-fix for CONFIG_SUSPEND=n and CONFIG_HIBERNATION=y
This fixes compilation with CONFIG_SUSPEND unset and CONFIG_HIBERNATION set
(raf. http://marc.info/?l=linux-acpi&m=119055289723895&w=4).

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-25 17:58:43 -04:00
Thomas Gleixner
b04e7bdb98 ACPI: disable lower idle C-states across suspend/resume
device_suspend() calls ACPI suspend functions, which seems to have undesired
side effects on lower idle C-states. It took me some time to realize that
especially the VAIO BIOSes (both Andrews jinxed UP and my elfstruck SMP one)
show this effect. I'm quite sure that other bug reports against suspend/resume
about turning the system into a brick have the same root cause.

After fishing in the dark for quite some time, I realized that removing the ACPI
processor module before suspend (this removes the lower C-state functionality)
made the problem disappear. Interestingly enough the propability of having a
bricked box is influenced by various factors (interrupts, size of the ram image,
...). Even adding a bunch of printks in the wrong places made the problem go
away. The previous periodic tick implementation simply pampered over the
problem, which explains why the dyntick / clockevents changes made this more
prominent.

We avoid complex functionality during the boot process and we have to do the
same during suspend/resume. It is a similar scenario and equaly fragile.

Add suspend / resume functions to the ACPI processor code and disable the lower
idle C-states across suspend/resume. Fall back to the default idle
implementation (halt) instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-22 17:15:34 -07:00
Len Brown
e5c86b5d4a Pull suspend.now into release branch 2007-09-21 21:55:34 -04:00
Frans Pop
5a50fe709d ACPI: suspend: consolidate handling of Sx states addendum
Make the S0 state be always reported as supported

Signed-off: Frans Pop <elendil@planet.nl>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-21 21:53:18 -04:00
Alexey Starikovskiy
f216cc3748 ACPI: suspend: consolidate handling of Sx states.
Recent changes to sleep initialization in ACPI dropped reporting of supported Sx
states above S3. Fix that and also move S5 init into same file as other Sx.
The only functional change is adding printk() for S4 and S5 cases.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-20 20:46:55 -04:00
Maik Broemme
7f10cc4e83 ACPI: video: remove dmesg spam
i am actually heavily using the ACPI video extension for my Thinkpad X61
Tablet. I have bound the input events triggered by the brightness
up/down keys to a simple

echo <value> > /sys/class/backlight/acpi_video1/brightness

but everytime the event is triggered and acpi_video_device_lcd_set_level()
is called i got a notificication in my kernel log like:

set_level status: 0
set_level status: 0
set_level status: 0
set_level status: 0
...

Signed-off-by: Maik Broemme <mbroemme@plusserver.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-18 13:45:20 -04:00
Zhang Rui
a21101c46c ACPI: video: _DOS=0 by default to prevent hotkey hang
In the past, the Linux/ACPI video driver invoked _DOS
(Display Output Switch) with the parameter 1
to tell the BIOS to switch the video output display for us.

But this conflicts with Linux native graphics drivers,
and can cause all sorts of issues, including hanging the system.

http://bugzilla.kernel.org/show_bug.cgi?id=6001

Here we change the Linux default to evaluate _DOS=0,
which tells the BIOS to simply send us a hotkey event
and not touch the graphics hardware.

The acpi video driver sends the display switch hotkey
event up through the intput layer, and X can interpret
that and use its native graphics driver to switch the display.

For the case where Linux has no native graphics driver running,
or the graphics driver doesn't know how to switch video and
the BIOS (safely) does, the previous behaviour can be restored with:

# echo 1 > /proc/acpi/video/*/DOS

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-18 13:37:49 -04:00
Len Brown
95e3f66fa6 Pull misc into release branch 2007-09-17 00:28:58 -04:00
Venkatesh Pallipadi
729c6ba334 ACPI: Reevaluate C/P/T states when a cpu becomes online
Reevaluate C/P/T states when a cpu becomes online. This avoids
the caching of the broadcast information in the clockevents layer.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Len Brown <len.brown@intel.com>
2007-09-16 15:36:43 +02:00
Henrique de Moraes Holschuh
66baf327ae ACPI: fix CONFIG_NET=n acpi_bus_generate_netlink_event build failure
drivers/acpi/event.c:243: error: 'acpi_generate_netlink_event' undeclared
here (not in a function)

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-03 11:15:11 -04:00
Alexey Starikovskiy
2d8348b429 ACPI: EC: Check if boot_ec was really found in DSDT
acpi_get_devices() returns success if it did not find any device.
We have to check for this case.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: Daniel Ritz <daniel.ritz-ml@swissonline.ch>
Tested-by: Luca <kronos.it@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-30 22:20:13 -07:00
Christian Borntraeger
134c21715a ACPI: (more) delete CONFIG_ACPI_PROCFS_SLEEP (again)
Commit 2bcf9dddeb8e79a4ba55bf191533f70f39ce
('ACPI: delete CONFIG_ACPI_PROCFS_SLEEP (again)')
was incomplete.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-28 17:12:56 -04:00
Hugh Dickins
721ebe005c reverse CONFIG_ACPI_PROC_EVENT default
Sigh.  Again an ACPI assault on the Thinkpad's Fn+F4 to suspend to RAM.
The default and text for CONFIG_THINKPAD_ACPI_INPUT_ENABLED were fixed
in -rc3, but now commit 14e04fb34f ("ACPI:
Schedule /proc/acpi/event for removal") introduces the ACPI_PROC_EVENT
config entry, and defaults it to 'n' to disable it again.

Change default to y, and add comment to make it clearer that n is for
future distros.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-27 10:27:48 -07:00
Len Brown
136c4bbfe6 Pull bugzilla-8798 into release branch 2007-08-25 02:24:03 -04:00
Zhang Rui
e6d9da1de0 ACPI: work around duplicate name "VID" problem on T61
This can only fix the problem that more than one video bus device
have the same AML name "VID".
ie. the proc I/F for the second "VID" video bus device is located under
/proc/acpi/video/VID1/...

As this is really rare and the ACPI proc I/F is a legacy feature that
we are planning to remove.
We won't provide a generic solution for this problem.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 02:23:31 -04:00
Len Brown
25c87f7f2a Pull events into release branch
Conflicts:

	drivers/acpi/video.c

Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 01:44:01 -04:00
Len Brown
a4fd494621 Pull misc into release branch 2007-08-25 01:40:27 -04:00
Andrew Morton
3e0d69ecf0 ACPI: add dump_stack() to trace acpi_format_exception programming errors
Dump the stack so we can find the secretive caller to acpi_format_exception().

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 01:39:02 -04:00
Adrian Bunk
b3e572d2eb make drivers/acpi/scan.c:create_modalias() static
This patch makes the needlessly global create_modalias() static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 01:38:51 -04:00
Al Viro
70b30fb13b ACPI: Fix a warning of discarding qualifiers from pointer target type
drivers/acpi/ec.c: In function `acpi_ec_ecdt_probe':
drivers/acpi/ec.c:873: warning: passing arg 1 of `acpi_get_devices' discards qualifiers from pointer target type

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 01:38:40 -04:00
Shaohua Li
ead77594af ACPI: "ACPI handle has no context!" should be KERN_DEBUG
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-25 01:38:20 -04:00
Len Brown
a3a1b26e79 Pull suspend into release branch 2007-08-25 01:36:18 -04:00
Len Brown
4c8c95bbcf Pull video into release branch 2007-08-24 22:26:27 -04:00
Len Brown
519ef1af47 Pull thermal into release branch 2007-08-24 22:26:19 -04:00
Luming Yu
e9dab1960a ACPI video hotkey: export missing ACPI video hotkey events via input layer
Signed-off-by: Yu Luming <luming.yu@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-24 22:23:46 -04:00
Len Brown
4548a9dbe0 Pull ec into release branch 2007-08-24 22:19:44 -04:00
Len Brown
de9bde9adb Pull bugzilla-8630 into release branch 2007-08-24 22:19:20 -04:00
Len Brown
2e0f4c7b38 Pull battery into release branch 2007-08-24 22:18:51 -04:00
Zhao Yakui
9f3119b70c ACPI: Validate XSDT, use RSDT if XSDT fails
ACPI 1.0 used an RSDT with 32-bit physical addresses.
ACPI 2.0 adds an XSDT with 32-bit physical addresses.
An ACPI 2.0 aware OS is supposed to use the XSDT
(when present) instead of the RSDT.

However, several systems have failed because the XSDT
contains NULL entries -- while it is missing pointers
to needed tables, such as SSDTs.

When we find an XSDT with NULL entries, discard it
and use the ACPI 1.0 RSDT instead.

http://bugzilla.kernel.org/show_bug.cgi?id=8630

Signed-off-by: Zhao Yakui  <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-24 18:46:25 -04:00
Pavel Machek
2db9ccba8d ACPI: /proc/acpi/thermal_zone trip points are now read-only, mark them as such
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-24 18:02:13 -04:00
Len Brown
3e069ee0c3 ACPI: fix ia64 allnoconfig build
drivers/acpi/event.c:238: error: conflicting types for ‘acpi_bus_generate_netlink_event’
include/acpi/acpi_bus.h:324: error: previous declaration of ‘acpi_bus_generate_netlink_event’ was here

Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-24 03:06:33 -04:00
Thomas Renninger
79d2dfaa4e ACPI: enable GPEs before calling _WAK on resume
It seems it's required to enable GPEs before _WAK.  E.g.  X60 triggers a
LID related GPE instead of doing a Notify in WAK.  Now the GPE reaches the
kernel and the Notify for LID status change gets thrown from there.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-24 01:24:47 -04:00
Alexey Starikovskiy
f9319f903f ACPI: EC: revert fix for bugzilla 8709
This is a manual revert of 7c010de750,
a fix that broke another ASUS in 8909 and 8919.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-24 00:30:59 -04:00
Zhang Rui
a1eb96a2f6 ACPI video hotkey: remove invalid events handler for video output devices
Both ACPI_VIDEO_NOTIFY_SWITCH and ACPI_VIDEO_NOTIFY_PROBE
are valid for video bus devices only. Actually ACPI video output
device should never be notified for a output device switch/probe.

ACPI bus devices notify handler already has the code to
handle these kinds of events.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-23 23:06:11 -04:00
Len Brown
14e04fb34f ACPI: Schedule /proc/acpi/event for removal
Schedule /proc/acpi/event for removal in 6 months.

Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event()
to make sure there is no confusion that it is for /proc/acpi/event only.

Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event.
There is no functional change if CONFIG_ACPI_PROC_EVENT=y

Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-23 15:20:26 -04:00
Zhang Rui
962ce8ca06 ACPI: don't duplicate input events on netlink
The previous events patch added a netlink event for every
user of the legacy /proc/acpi/event interface.

However, some users of /proc/acpi/event are really input events,
and they already report their events via the input layer.

Introduce a new interface, acpi_bus_generate_netlink_event(),
which is explicitly called by devices that want to repoprt
events via netlink.  This allows the input-like events
to opt-out of generating netlink events.  In summary:

events that are sent via netlink:
	ac/battery/sbs
	thermal
	processor
	thinkpad_acpi dock/bay

events that are sent via input layer:
	button
	video hotkey
	thinkpad_acpi hotkey
	asus_acpi/asus-laptop hotkey
	sonypi/sonylaptop

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-23 14:27:23 -04:00
Ingo Molnar
2aa44d0567 sched: sched_clock_idle_[sleep|wakeup]_event()
construct a more or less wall-clock time out of sched_clock(), by
using ACPI-idle's existing knowledge about how much time we spent
idling. This allows the rq clock to work around TSC-stops-in-C2,
TSC-gets-corrupted-in-C3 type of problems.

( Besides the scheduler's statistics this also benefits blktrace and
  printk-timestamps as well. )

Furthermore, the precise before-C2/C3-sleep and after-C2/C3-wakeup
callbacks allow the scheduler to get out the most of the period where
the CPU has a reliable TSC. This results in slightly more precise
task statistics.

the ACPI bits were acked by Len.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Len Brown <len.brown@intel.com>
2007-08-23 15:18:02 +02:00
Len Brown
8c99fdce30 ACPI: thermal: set "thermal.nocrt" via DMI on Gigabyte GA-7ZX
This system BIOS sets a critical temperature to 65C,
which is too low.

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=155496

Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-20 18:49:11 -04:00
Len Brown
5b31d89587 Revert "ACPI: Battery: Synchronize battery operations."
This reverts commit 3bd92ba19a.

It is no longer necessary, and it opens up a race.

Acked-by: Vladimir Lebedev <vladimir.p.lebedev@gmail.com>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-15 00:19:26 -04:00
Len Brown
c52a7419af ACPI: thermal: create "thermal.crt=C" bootparam
Some hardware will malfunction at a temperature below
the BIOS provided critical shutdown threshold.

This hook allows moving the critical trip points down
to a temperature which provokes a graceful shutdown
before the hardware malfunction.

http://bugzilla.kernel.org/show_bug.cgi?id=8884

WARNING: A trip-point override will not get noticed
until the system delivers a temperature change event,
or unless thermal zone polling is enabled.
eg. "thermal.tzp=10"

Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-14 15:49:32 -04:00
Len Brown
3c1d36da1d ACPI: thermal: clean up MODULE_PARM_DESC newlines
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-14 15:12:56 -04:00
Alexey Starikovskiy
c019b19330 ACPI: EC: Fix "no battery" regression
Restore deleted call to register query methods.

http://bugzilla.kernel.org/show_bug.cgi?id=8886

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-14 01:03:42 -04:00
Len Brown
4e54e9f442 Pull sbs into release branch 2007-08-12 00:21:22 -04:00
Len Brown
27196c30db Pull processor into release branch 2007-08-12 00:21:08 -04:00
Len Brown
ad17b209dc Pull fluff into release branch 2007-08-12 00:20:59 -04:00
Len Brown
d88da66f93 Pull ec into release branch 2007-08-12 00:20:41 -04:00
Len Brown
6712a4fbb1 Pull dock-bay into release branch 2007-08-12 00:20:33 -04:00
Len Brown
d8dd3cbcf1 Pull bugzilla-8842 into release branch 2007-08-12 00:19:23 -04:00
Len Brown
fc0dc4d3aa Pull bugzilla-8768 into release branch 2007-08-12 00:18:11 -04:00