Commit Graph

150 Commits

Author SHA1 Message Date
Len Brown 7b3dad3d85 Pull bug3410 into release branch 2005-12-22 22:26:10 -05:00
Len Brown 3c058d8b17 Pull owner_id into release branch 2005-12-22 22:26:01 -05:00
Len Brown 9d6be4bed6 [ACPI] fix build warning from owner_id patch
Signed-off-by: Len Brown <len.brown@intel.com>
2005-12-22 22:24:10 -05:00
Thomas Renninger 75b245b325 [ACPI] fix passive cooling regression
Return logic was inverted.
Going for changing the return value to not return zero as it is makes
more sense regarding the naming of the function (cpu_has_cpufreq()).

http://bugzilla.kernel.org/show_bug.cgi?id=3410

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-12-22 22:00:25 -05:00
Alex Williamson 05465fd562 [ACPI] increase owner_id limit to 64 from 32
This is an interim patch until changes in an updated
ACPICA core increase the limit to 255.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-12-21 04:52:16 -05:00
Len Brown d3e4cefc86 Auto-update from upstream 2005-12-14 02:59:50 -05:00
Dave Jones a64882e795 [PATCH] ACPI: fix sleeping whilst atomic warnings on resume
This has been broken for months.  On resume, we call acpi_pci_link_set()
with interrupts off, so we get a warning when we try to do a kmalloc of non
atomic memory.  The actual allocation is just 2 long's (plus extra byte for
some reason I can't fathom), so a simple conversion to GFP_ATOMIC is
probably the safest way to fix this.

The error looks like this..

Debug: sleeping function called from invalid context at mm/slab.c:2486
in_atomic():0, irqs_disabled():1
 [<c0143f6c>] kmem_cache_alloc+0x40/0x56
 [<c0206a2e>] acpi_pci_link_set+0x3f/0x17f
 [<c0206f96>] irqrouter_resume+0x1e/0x3c
 [<c0239bca>] __sysdev_resume+0x11/0x6b
 [<c0239e88>] sysdev_resume+0x34/0x52
 [<c023de21>] device_power_up+0x5/0xa

Signed-off-by: Dave Jones <davej@redhat.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12 08:57:45 -08:00
Len Brown 927fe18397 Pull 5165 into release branch 2005-12-05 17:08:40 -05:00
David Shaohua Li 1e48396993 [ACPI] correct earlier SMP deep C-states on HT patch
http://bugzilla.kernel.org/show_bug.cgi?id=5165

Change polarity of test for PLVL2_UP flag.
Skip promotion/demotion code when not needed.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-12-05 17:00:37 -05:00
Linus Torvalds af2eb17bac Add missing "local_irq_enable()" to C2/C3 exit logic
Silly bug crept in with the C2/C3 TIF_POLLING_NRFLAG fixes.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-02 23:09:06 -08:00
Nick Piggin 2a298a35eb [PATCH] Fix TIF_POLLING_NRFLAG in ACPI idle routines
Commit 64c7c8f885 broke the ACPI C2 and C3
sleep states, because it left TIF_POLLING_NRFLAG active even though
those states do not actually poll the reschedule flag at all.  As a
result, the CPU wouldn't get sent an IPI when it was to be woken up, and
would only notice that it had runnable processes on the next timer tick.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-02 14:20:21 -08:00
Len Brown 220ec70664 Pull 3410 into release branch 2005-12-01 01:42:17 -05:00
Len Brown 16071a073d Pull 5452 into release branch 2005-12-01 01:39:55 -05:00
Len Brown b7639dafb4 Pull 5571 into release branch 2005-12-01 01:39:41 -05:00
Venkatesh Pallipadi cd8e2b48da [ACPI] fix 2.6.13 boot hang regression on HT box w/ broken BIOS
http://bugzilla.kernel.org/show_bug.cgi?id=5452

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-11-30 23:28:50 -05:00
Thomas Renninger 59d399d357 [ACPI] Fix Null pointer deref in video/lcd/brightness
http://bugzilla.kernel.org/show_bug.cgi?id=5571

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Yu Luming <luming.yu@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-11-30 23:03:08 -05:00
Thomas Renninger 1cbf4c563c [ACPI] Allow return to active cooling mode once passive mode is entered
http://bugzilla.kernel.org/show_bug.cgi?id=3410
https://bugzilla.novell.com/show_bug.cgi?id=131543

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Konstantin Karasyov <konstantin.a.karasyov@intel.com>
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Yu Luming <luming.yu@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2005-11-30 22:51:04 -05:00
Borislav Petkov 0a47c90634 [ACPI] delete "default y" on Kconfig for ibm_acpi extras driver
Signed-off-by: Borislav Petkov <petkov@uni-muenster.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-11-30 22:15:25 -05:00
Al Viro 5d8e7aa6e5 [ACPI] IA64 build: blacklist.c is used only on X86
Signed-off-by: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
(cherry picked from ef4611613657dfb8af8d336f2f61f08cfcdc9d8a commit)
2005-11-30 21:59:35 -05:00
Len Brown 7dac562f6d Pull 5165 into release branch 2005-11-30 21:55:14 -05:00
Thomas Renninger bd7ce5b5ff [ACPI] fix HP nx8220 boot hang regression
This patch reverts the acpi_bus_find_driver() return value check
that came in via the PCI tree via 3fb02738b0

        [PATCH] acpi bridge hotadd: Allow ACPI .add and .start
	operations to be done independently

This particular change broke booting of some HP/Compaq laptops unless
acpi=noirq is used.

http://bugzilla.kernel.org/show_bug.cgi?id=5221
https://bugzilla.novell.com/show_bug.cgi?id=116763

Signed-off-by: Thomas Renninger <trenn@suse.de>
Cc: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-11-30 04:35:02 -05:00
Venkatesh Pallipadi 4c0335526c [ACPI] Add support for FADT P_LVL2_UP flag
which tells us if C2 is valid for UP-only, or SMP.

As there is no separate bit for C3,  use P_LVL2_UP
bit to cover both C2 and C3.

http://bugzilla.kernel.org/show_bug.cgi?id=5165

Signed-off-by: Venkatesh Pallipadi<venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
(cherry picked from 28b86b368af3944eb383078fc5797caf2dc8ce44 commit)
2005-11-30 03:23:52 -05:00
Venkatesh Pallipadi 6d93c64803 [ACPI] Prefer _CST over FADT for C-state capabilities
Note: This ACPI standard compliance may cause regression
on some system, if they have _CST present, but _CST value
is bogus. "nocst" module parameter should workaround
that regression.

http://bugzilla.kernel.org/show_bug.cgi?id=5165

Signed-off-by: Venkatesh Pallipadi<venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
(cherry picked from 883baf7f7e81cca26f4683ae0d25ba48f094cc08 commit)
2005-11-30 03:23:06 -05:00
Linus Torvalds 2203d6ed44 Fix ACPI processor power block initialization
Properly clear the memory, and set "pr->flags.power" only if a C2 or
deeper state is valid (to make the code match both the comment and
previous behaviour).

This fixes a boot-time lockup reported by Maneesh Soni when using
"maxcpus=1".

Acked-by: Maneesh Soni <maneesh@in.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-18 07:29:51 -08:00
Jeff Garzik bca73e4bf8 [PATCH] move pm_register/etc. to CONFIG_PM_LEGACY, pm_legacy.h
Since few people need the support anymore, this moves the legacy
pm_xxx functions to CONFIG_PM_LEGACY, and include/linux/pm_legacy.h.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-13 18:14:10 -08:00
rajesh.shah@intel.com a3a45ec8f8 [PATCH] pciehp: clean-up how we request control of hotplug hardware
This patch further tweaks how we request control of hotplug
controller hardware from BIOS. We first search the ACPI namespace
corresponding to a specific hotplug controller looking for an
_OSC or OSHP method. On failure, we successively move to the
ACPI parent object, till we hit the highest level host bridge
in the hierarchy. This allows for different types of BIOS's
which place the _OSC/OSHP methods at various places in the acpi
namespace, while still not encroaching on the namespace of
some other root level host bridge.

This patch also introduces a new load time option (pciehp_force)
that allows us to bypass all _OSC/OSHP checking. Not supporting
these methods seems to be be the most common ACPI firmware problem
we've run into. This will still _not_ allow the pciehp driver to
work correctly if the BIOS really doesn't support pciehp (i.e. if
it doesn't generate a hotplug interrupt). Use this option with
caution.  Some BIOS's may deliberately not build any _OSC/OSHP
methods to make sure it retains control the hotplug hardware.
Using the pciehp_force parameter for such systems can lead to
two separate entities trying to control the same hardware.

Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-10 16:09:15 -08:00
Nick Piggin 64c7c8f885 [PATCH] sched: resched and cpu_idle rework
Make some changes to the NEED_RESCHED and POLLING_NRFLAG to reduce
confusion, and make their semantics rigid.  Improves efficiency of
resched_task and some cpu_idle routines.

* In resched_task:
- TIF_NEED_RESCHED is only cleared with the task's runqueue lock held,
  and as we hold it during resched_task, then there is no need for an
  atomic test and set there. The only other time this should be set is
  when the task's quantum expires, in the timer interrupt - this is
  protected against because the rq lock is irq-safe.

- If TIF_NEED_RESCHED is set, then we don't need to do anything. It
  won't get unset until the task get's schedule()d off.

- If we are running on the same CPU as the task we resched, then set
  TIF_NEED_RESCHED and no further action is required.

- If we are running on another CPU, and TIF_POLLING_NRFLAG is *not* set
  after TIF_NEED_RESCHED has been set, then we need to send an IPI.

Using these rules, we are able to remove the test and set operation in
resched_task, and make clear the previously vague semantics of
POLLING_NRFLAG.

* In idle routines:
- Enter cpu_idle with preempt disabled. When the need_resched() condition
  becomes true, explicitly call schedule(). This makes things a bit clearer
  (IMO), but haven't updated all architectures yet.

- Many do a test and clear of TIF_NEED_RESCHED for some reason. According
  to the resched_task rules, this isn't needed (and actually breaks the
  assumption that TIF_NEED_RESCHED is only cleared with the runqueue lock
  held). So remove that. Generally one less locked memory op when switching
  to the idle thread.

- Many idle routines clear TIF_POLLING_NRFLAG, and only set it in the inner
  most polling idle loops. The above resched_task semantics allow it to be
  set until before the last time need_resched() is checked before going into
  a halt requiring interrupt wakeup.

  Many idle routines simply never enter such a halt, and so POLLING_NRFLAG
  can be always left set, completely eliminating resched IPIs when rescheduling
  the idle task.

  POLLING_NRFLAG width can be increased, to reduce the chance of resched IPIs.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Con Kolivas <kernel@kolivas.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:56:33 -08:00
Jesper Juhl 6044ec8882 [PATCH] kfree cleanup: misc remaining drivers
This is the remaining misc drivers/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in misc files in
drivers/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
Acked-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Len Brown <len.brown@intel.com>
Acked-by: "Antonino A. Daplas" <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:54:05 -08:00
Nishanth Aravamudan 01a527ec7c [PATCH] drivers/acpi: fix-up schedule_timeout() usage
Use schedule_timeout_interruptible() instead of
set_current_state()/schedule_timeout() to reduce kernel size.  Also use
msecs_to_jiffies() instead of direct HZ division to avoid rounding errors.

Signed-off-by: Nishanth Aravamudan <nacc@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>
2005-11-07 07:53:56 -08:00
Tim Schmielau 4e57b68178 [PATCH] fix missing includes
I recently picked up my older work to remove unnecessary #includes of
sched.h, starting from a patch by Dave Jones to not include sched.h
from module.h. This reduces the number of indirect includes of sched.h
by ~300. Another ~400 pointless direct includes can be removed after
this disentangling (patch to follow later).
However, quite a few indirect includes need to be fixed up for this.

In order to feed the patches through -mm with as little disturbance as
possible, I've split out the fixes I accumulated up to now (complete for
i386 and x86_64, more archs to follow later) and post them before the real
patch.  This way this large part of the patch is kept simple with only
adding #includes, and all hunks are independent of each other.  So if any
hunk rejects or gets in the way of other patches, just drop it.  My scripts
will pick it up again in the next round.

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:32 -08:00
Shaohua Li eb9289eb20 [PATCH] introduce .valid callback for pm_ops
Add pm_ops.valid callback, so only the available pm states show in
/sys/power/state.  And this also makes an earlier states error report at
enter_state before we do actual suspend/resume.

Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Acked-by: Pavel Machek<pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:15 -08:00
Dave Hansen 0b0acbec1b [PATCH] memory hotplug: move section_mem_map alloc to sparse.c
This basically keeps up from having to extern __kmalloc_section_memmap().

The vaddr_in_vmalloc_area() helper could go in a vmalloc header, but that
header gets hard to work with, because it needs some arch-specific macros.
Just stick it in here for now, instead of creating another header.

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Lion Vollnhals <webmaster@schiggl.de>
Signed-off-by: Jiri Slaby <xslaby@fi.muni.cz>
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>
2005-10-29 21:40:44 -07:00
Peter Chubb 51b190b304 [PATCH] `unaligned access' in acpi get_root_bridge_busnr()
In drivers/acpi/glue.c the address of an integer is cast to the address of
an unsigned long.  This breaks on systems where a long is larger than an
int --- for a start the int can be misaligned; for a second the assignment
through the pointer will overwrite part of the next variable.

Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Acked-by: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-19 23:04:31 -07:00
Pavel Machek 5cc9eeef9a [PATCH] Fix /proc/acpi/events around suspend
Fix -EIO on /proc/acpi/events after suspends.  This actually breaks
suspending by power button in many setups.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-17 17:03:57 -07:00
Pavel Machek b01d8684e9 [PATCH] remove ACPI S4bios support
Remove S4BIOS support.  It is pretty useless, and only ever worked for _me_
once.  (I do not think anyone else ever tried it).  It was in feature-removal
for a long time, and it should have been removed before.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-10 10:06:35 -07:00
viro@ZenIV.linux.org.uk 5dce225bd9 [PATCH] Fix CONFIG_ACPI_BLACKLIST_YEAR
This makes ACPI_BLACKLIST_YEAR be consistently defined when ACPI is
enabled, regardless of whether we're on x86 or not, and thus avoids
bogus -Wundef warnings on ia64.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09 10:45:35 -07:00
Len Brown 4a35a46bf1 [ACPI] revert bad processor_core.c patch for bug 5128
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 12:41:12 -04:00
Len Brown 2413d2c12c [ACPI] build fix - processor_core.c w/ !CONFIG_SMP
http://bugzilla.kernel.org/show_bug.cgi?id=5128

Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 02:58:17 -04:00
Luming Yu 824b558bbe [ACPI] acpi_video_device_write_state() now works
http://bugzilla.kernel.org/show_bug.cgi?id=5060

Signed-off-by: Luming Yu <luming.yu@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 01:28:06 -04:00
Venkatesh Pallipadi 9a31477a95 [ACPI] fix processor_core.c for NR_CPUS > 256
http://bugzilla.kernel.org/show_bug.cgi?id=5128

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 01:01:37 -04:00
Kenji Kaneshige 5f0110f2a7 [ACPI] fix run-time error checking in acpi_pci_irq_disable()
The 'bus' field in pci_dev structure should be checked before calling
pci_read_config_byte() because pci_bus_read_config_byte() called by
pci_read_config_byte() refers to 'bus' field.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 00:36:26 -04:00
Adrian Bunk 8713cbefaf [ACPI] add static to function definitions
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 00:20:13 -04:00
Robert Moore aff8c2777d [ACPI] ACPICA 20050902
Fixed a problem with the internal Owner ID allocation and
deallocation mechanisms for control method execution and
recursive method invocation.  This should eliminate the
OWNER_ID_LIMIT exceptions and "Invalid OwnerId" messages
seen on some systems.  Recursive method invocation depth
is currently limited to 255.  (Alexey Starikovskiy)

http://bugzilla.kernel.org/show_bug.cgi?id=4892

Completely eliminated all vestiges of support for the
"module-level executable code" until this support is
fully implemented and debugged.  This should eliminate the
NO_RETURN_VALUE exceptions seen during table load on some
systems that invoke this support.

http://bugzilla.kernel.org/show_bug.cgi?id=5162

Fixed a problem within the resource manager code where
the transaction flags for a 64-bit address descriptor were
handled incorrectly in the type-specific flag byte.

Consolidated duplicate code within the address descriptor
resource manager code, reducing overall subsystem code size.

Signed-off-by: Robert Moore <Robert.Moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 00:15:11 -04:00
Len Brown a94f18810f [ACPI] revert owner-id-3.patch
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 00:10:05 -04:00
Alexey Y. Starikovskiy 8813dfbfc5 [ACPI] Error: Invalid owner_id: 00
Signed-off-by: Alexey Y. Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-31 17:29:32 -04:00
Bob Moore a18ecf413c [ACPI] ACPICA 20050815
Implemented a full bytewise compare to determine if a table load
request is attempting to load a duplicate table. The compare is
performed if the table signatures and table lengths match. This
will allow different tables with the same OEM Table ID and
revision to be loaded.

Although the BIOS is technically violating the ACPI spec when
this happens -- it does happen -- so Linux must handle it.

Signed-off-by: Robert Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-29 23:44:25 -04:00
Len Brown 27a639a92d Auto-update from upstream 2005-08-29 17:02:17 -04:00
Eric W. Biederman 8dbddf1782 [PATCH] acpi_shutdown: Only prepare for power off on power_off
When acpi_sleep_prepare was moved into a shutdown method we
started calling it for all shutdowns.

It appears this triggers some systems to power off on reboot.

Avoid this by only calling acpi_sleep_prepare if we are going to power
off the system.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-27 10:11:40 -07:00
Len Brown 89ef1a21a1 merge ibm into test 2005-08-25 17:41:14 -04:00
Borislav Deianov 78f81cc435 [ACPI] IBM ThinkPad ACPI Extras Driver v0.12
http://ibm-acpi.sf.net/

Signed-off-by: Borislav Deianov <borislav@users.sf.net>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-25 17:37:51 -04:00