Commit Graph

1853 Commits

Author SHA1 Message Date
Ingo Molnar
6e15cf0486 Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2
Conflicts:
	arch/parisc/kernel/irq.c
	arch/x86/include/asm/fixmap_64.h
	arch/x86/include/asm/setup.h
	kernel/irq/handle.c

Semantic merge:
        arch/x86/include/asm/fixmap.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-27 17:28:43 +01:00
David S. Miller
08abe18af1 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	drivers/net/wimax/i2400m/usb-notif.c
2009-03-26 15:23:24 -07:00
Ming Lei
f67f129e51 Driver core: implement uevent suppress in kobject
This patch implements uevent suppress in kobject and removes it
from struct device, based on the following ideas:

1,Uevent sending should be one attribute of kobject, so suppressing it
in kobject layer is more natural than in device layer. By this way,
we can do it for other objects embedded with kobject.

2,It may save several bytes for each instance of struct device.(On my
omap3(32bit ARM) based box, can save 8bytes per device object)

This patch also introduces dev_set|get_uevent_suppress() helpers to
set and query uevent_suppress attribute in case to help kobject
as private part of struct device in future.

[This version is against the latest driver-core patch set of Greg,please
ignore the last version.]

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:38:26 -07:00
Cyrill Gorcunov
27ce341983 acpi: check for pxm_to_node_map overflow
It is hardly (if ever) possible but in case of broken _PXM entry we could
reach out of pxm_to_node_map array bounds in acpi_map_pxm_to_node() call.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-16 00:35:30 -04:00
Jiri Slaby
176f9c1804 ACPI: remove doubled status checking
There was a misplaced status test (two consequent tests without a
statement in between) in acpi_bus_init for ages.  Remove it, since the
function which should be checked (acpi_os_initialize1) has BUG_ONs on
failure paths.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-16 00:35:30 -04:00
Zhang Rui
45e7798886 ACPI suspend: Blacklist Toshiba Satellite L300 that requires to set SCI_EN directly on resume
This is a supplement of commit 65df78473f.
http://bugzilla.kernel.org/show_bug.cgi?id=12798

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-16 00:35:29 -04:00
Len Brown
7b46ecd5fc Revert "ACPI: make some IO ports off-limits to AML"
This reverts commit 5ec5d38a1c.
because it caused spurious dmesg warmings.
We'll implement the check for off-limit ports
in a more clever way in the future.

http://bugzilla.kernel.org/show_bug.cgi?id=12758

Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-16 00:35:29 -04:00
Andy Whitcroft
a140449584 suspend: switch the Asus Pundit P1-AH2 to old ACPI sleep ordering
Switch the Asus Pundit P1-AH2 (M2N8L motherboard) to the old ACPI 1.0
sleep ordering by default.  Without this it will not suspend/resume
correctly.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Tested-by: Dustin Kirkland <kirkland@canonical.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-16 00:35:28 -04:00
Ingo Molnar
0edcf8d692 Merge branch 'tj-percpu' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/percpu
Conflicts:
	arch/x86/include/asm/pgtable.h
2009-02-24 21:52:45 +01:00
Ingo Molnar
a852cbfaaf Merge branches 'x86/acpi', 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/mm', 'x86/signal' and 'x86/urgent'; commit 'v2.6.29-rc6' into x86/core 2009-02-24 21:50:43 +01:00
David S. Miller
e70049b9e7 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-02-24 03:50:29 -08:00
Jeremy Fitzhardinge
0d3a9cf5ab acpi: add some missing section markers
early_acpi_os_unmap_memory() is an __init function, and
acpi_os_unmap_memory() is allowed to access an __init function
until acpi_gbl_permanent_mmap is set up.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-23 00:10:47 +01:00
Ingo Molnar
fc6fc7f1b1 Merge branch 'linus' into x86/apic
Conflicts:
	arch/x86/mach-default/setup.c

Semantic conflict resolution:
	arch/x86/kernel/setup.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-22 20:05:19 +01:00
Len Brown
5acfac5a64 Merge branches 'release', 'bugzilla-12011', 'bugzilla-12632', 'misc' and 'suspend' into release 2009-02-21 22:01:43 -05:00
Bjorn Helgaas
ba193d64ab ACPI: remove CONFIG_ACPI_SYSTEM
Remove CONFIG_ACPI_SYSTEM.  It was always set the same as CONFIG_ACPI,
and it had no menu label, so there was no way to set it to anything
other than "y".

Some things under CONFIG_ACPI_SYSTEM (acpi_irq_handled, acpi_os_gpe_count(),
event_is_open, register_acpi_notifier(), etc.) are used unconditionally
by the CA, the OSPM, and drivers, so we depend on them always being
present.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-21 21:59:56 -05:00
Richard Hughes
56f382a087 battery: don't assume we are fully charged when not charging or discharging
On hardware like the T61 it can take a couple of seconds for the battery
to start charging after the power is connected, and we incorrectly tell
userspace that we are fully charged, and then go back to charging.

Only mark a battery as fully charged when the preset charge matches either
the last full charge, or the design charge.

http://bugzilla.kernel.org/show_bug.cgi?id=12632

Signed-off-by: Richard Hughes <hughsient@gmail.com>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-21 12:36:19 -05:00
Alexey Starikovskiy
5423a0cb3f ACPI: EC: Add delay for slow MSI controller
http://bugzilla.kernel.org/show_bug.cgi?id=12011

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-21 12:18:13 -05:00
Rusty Russell
b36128c830 alloc_percpu: change percpu_ptr to per_cpu_ptr
Impact: cleanup

There are two allocated per-cpu accessor macros with almost identical
spelling.  The original and far more popular is per_cpu_ptr (44
files), so change over the other 4 files.

tj: kill percpu_ptr() and update UP too

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: mingo@redhat.com
Cc: lenb@kernel.org
Cc: cpufreq@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
2009-02-20 16:29:08 +09:00
David S. Miller
5e30589521 Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-agn.c
	drivers/net/wireless/iwlwifi/iwl3945-base.c
2009-02-14 23:12:00 -08:00
Yinghai Lu
7d97277b75 acpi/x86: introduce __apci_map_table, v4
to prevent wrongly overwriting fixmap that still want to use.

ACPI used to rely on low mappings being all linearly mapped and
grew a habit: it never really unmapped certain kinds of tables
after use.

This can cause problems - for example the hypothetical case
when some spurious access still references it.

v2: remove prev_map and prev_size in __apci_map_table
v3: let acpi_os_unmap_memory() call early_iounmap too, so remove extral calling to
early_acpi_os_unmap_memory
v4: fix typo in one acpi_get_table_with_size calling

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-09 13:35:07 +01:00
Jeremy Fitzhardinge
05876f88ed acpi: remove final __acpi_map_table mapping before setting acpi_gbl_permanent_mmap
On x86, __acpi_map_table uses early_ioremap() to create the mapping,
replacing the previous mapping with a new one.  Once enough of the
kernel is up an running it switches to using normal ioremap().  At
that point, we need to clean up the final mapping to avoid a warning
from the early_ioremap subsystem.

This can be removed after all the instances in the ACPI code are fixed
that rely on early-ioremap's implicit overmapping of previously
mapped tables.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-09 13:34:46 +01:00
Len Brown
2d29c6a075 Merge branches 'release', 'asus', 'bugzilla-12450', 'cpuidle', 'debug', 'ec', 'misc', 'printk' and 'processor' into release 2009-02-07 01:34:56 -05:00
Thierry Vignaud
370154bbef ACPI: Kconfig text - Fix the ACPI_CONTAINER module name according to the real module name.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-07 01:12:19 -05:00
Myron Stowe
386e4a8358 ACPICA: Fix table entry truncation calculation
During early boot, ACPI RSDT/XSDT table entries are gathered into the
'initial_tables[]' array.  This array is currently statically defined (see
./drivers/acpi/tables.c).  When there are more table entries than can be
held in the 'initial_tables[]' array, the message "Truncating N table
entries!" is output.  As currently implemented, this message will always
erroneously calculate N as 0.

This patch fixes the calculation that determines how many table entries
will be missing (truncated).

This modification may be used under either the GPL or the BSD-style
license used for Intel ACPI CA code.

Signed-off-by: Myron Stowe <myron.stowe@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-07 00:51:23 -05:00
Kay Sievers
db1461ad43 ACPI: struct device - replace bus_id with dev_name(), dev_set_name()
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-07 00:41:13 -05:00
Frank Seidel
4d9391557b ACPI: add missing KERN_* constants to printks
According to kerneljanitors todo list all printk calls (beginning
a new line) should have an according KERN_* constant.
Those are the missing peaces here for the acpi subsystem.

Signed-off-by: Frank Seidel <frank@f-seidel.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-07 00:29:32 -05:00
Holger Macht
fc5a9f8841 ACPI: dock: Don't eval _STA on every show_docked sysfs read
Some devices trigger a DEVICE_CHECK on every evalutation of _STA. This
can also be seen in commit 8b59560a3b
(ACPI: dock: avoid check _STA method).  If an undock is processed, the
dock driver sends a uevent and userspace might read the show_docked
property in sysfs. This causes an evaluation of _STA of the particular
device which causes the dock driver to immediately dock again.

In any case, evaluation of _STA (show_docked) does not necessarily mean
that we are docked, so check with the internal device structure.

http://bugzilla.kernel.org/show_bug.cgi?id=12360

Signed-off-by: Holger Macht <hmacht@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-06 22:08:15 -05:00
Len Brown
9e3a9d1ed8 ACPI: disable ACPI cleanly when bad RSDP found
When ACPI is disabled in the BIOS of this VIA C3 box,
it invalidates the RSDP, which Linux notices:

ACPI Error (tbxfroot-0218): A valid RSDP was not found [20080926]

Bug Linux neglected to disable ACPI at that stage,
and later scribbled on smp_found_config:

ACPI: No APIC-table, disabling MPS

But this box doesn't run well in legacy PIC mode,
it needed IOAPIC mode to perform correctly:

http://lkml.org/lkml/2009/2/5/39

So exit ACPI mode cleanly when we first detect
that it is hopeless.

Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-06 14:00:56 -05:00
Len Brown
9fdd54f206 ACPI: delete CPU_IDLE=n code
CPU_IDLE=y has been default for ACPI=y since Nov-2007,
and has shipped in many distributions since then.

Here we delete the CPU_IDLE=n ACPI idle code, since
nobody should be using it, and we don't want to
maintain two versions.

Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-06 12:34:39 -05:00
Pablo Neira Ayuso
ff491a7334 netlink: change return-value logic of netlink_broadcast()
Currently, netlink_broadcast() reports errors to the caller if no
messages at all were delivered:

1) If, at least, one message has been delivered correctly, returns 0.
2) Otherwise, if no messages at all were delivered due to skb_clone()
   failure, return -ENOBUFS.
3) Otherwise, if there are no listeners, return -ESRCH.

With this patch, the caller knows if the delivery of any of the
messages to the listeners have failed:

1) If it fails to deliver any message (for whatever reason), return
   -ENOBUFS.
2) Otherwise, if all messages were delivered OK, returns 0.
3) Otherwise, if no listeners, return -ESRCH.

In the current ctnetlink code and in Netfilter in general, we can add
reliable logging and connection tracking event delivery by dropping the
packets whose events were not successfully delivered over Netlink. Of
course, this option would be settable via /proc as this approach reduces
performance (in terms of filtered connections per seconds by a stateful
firewall) but providing reliable logging and event delivery (for
conntrackd) in return.

This patch also changes some clients of netlink_broadcast() that
may report ENOBUFS errors via printk. This error handling is not
of any help. Instead, the userspace daemons that are listening to
those netlink messages should resync themselves with the kernel-side
if they hit ENOBUFS.

BTW, netlink_broadcast() clients include those that call
cn_netlink_send(), nlmsg_multicast() and genlmsg_multicast() since they
internally call netlink_broadcast() and return its error value.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-05 23:56:36 -08:00
Thomas Renninger
62663ea822 ACPI: cpufreq: Remove deprecated /proc/acpi/processor/../performance proc entries
They were long enough set deprecated...

Update Documentation/cpu-freq/users-guide.txt:
The deprecated files listed there seen not to exist for some time anymore
already.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-04 00:12:24 -05:00
Len Brown
5ec5d38a1c ACPI: make some IO ports off-limits to AML
ACPICA exports acpi_os_validate_address() so the OS
can prevent BIOS AML from accessing specified addresses.

Start using this interface to prevent AML from accessing
some well known IO addresses that the OS "owns".

Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-03 22:52:12 -05:00
Len Brown
3e0676a9b6 ACPICA: add debug dump of BIOS _OSI strings
on boot, print out the OSI strings the BIOS uses to query the OS.

To see this output...

build with CONFIG_ACPI_DEBUG

boot with
"acpi.debug_level=4" (ACPI_LV_INFO) (enabled by default)
and
"acpi.debug_level=1" (ACPI_UTILITIES) (default is 0)

example output:

ACPI: BIOS _OSI(Windows 2001) supported
ACPI: BIOS _OSI(Windows 2001 SP1) supported
ACPI: BIOS _OSI(Windows 2001 SP2) supported
ACPI: BIOS _OSI(Windows 2006) supported
ACPI: BIOS _OSI(Linux) not-supported
ACPI: BIOS _OSI(FreeBSD) not-supported

Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-03 18:12:35 -05:00
Zhao Yakui
f3b39f1393 ACPI: proc_dir_entry 'video/VGA' already registered
eliminate the duplicate the name of "VGA"

http://bugzilla.kernel.org/show_bug.cgi?id=12514

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-02 22:55:01 -05:00
Zhao Yakui
0a3db1cec5 ACPI: Skip the first two elements in the _BCL package
According to the Spec the first two elements in the _BCL package won't be

regarded as the available brightness level. The first is the brightness when
full power is connected to the box(It means that the AC adapter is plugged).
The second is the brightness level when the box is on battery.
    If the first two elements are still used while finding the next brightness
level, it will fall back to the lowest level when keeping on pressing
hotkey. (On some boxes the brightness will be changed twice when hotkey is
pressed once. One is in the ACPI video driver. The other is changed by sys I/F.
In the ACPI video driver the first two elements will be used while changing
the brightness. But the first two elements is skipped while using sys I/F.
In such case there exists the inconsistency).
    So he first two elements had better be skipped while showing the available
brightness or finding the next brightness level.

http://bugzilla.kernel.org/show_bug.cgi?id=12450

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-02-02 22:34:23 -05:00
Len Brown
31878dd86b ACPI: remove BM_RLD access from idle entry path
It is true that BM_RLD needs to be set to enable
bus master activity to wake an older chipset (eg PIIX4) from C3.

This is contrary to the erroneous wording the ACPI 2.0, 3.0
specifications that suggests that BM_RLD is an indicator
rather than a control bit.

ACPI 1.0's correct wording should be restored in ACPI 4.0:
http://www.acpica.org/bugzilla/show_bug.cgi?id=689

But the kernel should not have to clear BM_RLD
when entering a non C3-type state just to set
it again when entering a C3-type C-state.

We should be able to set BM_RLD at boot time
and leave it alone -- removing the overhead of
accessing this IO register from the idle entry path.

Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-28 19:15:54 -05:00
Len Brown
a2b7b01c07 ACPI: remove locking from PM1x_STS register reads
PM1a_STS and PM1b_STS are twins that get OR'd together
on reads, and all writes are repeated to both.

The fields in PM1x_STS are single bits only,
there are no multi-bit fields.

So it is not necessary to lock PM1x_STS reads against
writes because it is impossible to read an intermediate
value of a single bit.  It will either be 0 or 1,
even if a write is in progress during the read.
Reads are asynchronous to writes no matter if a lock
is used or not.

Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-28 13:59:56 -05:00
Tero Roponen
4312495f7d ACPI: Fix crash on ASUS laptops
This patch fixes the crash I experienced in 2.6.29-rc2.
Tested on ASUS M50vm.

Signed-off-by: Tero Roponen <tero.roponen@gmail.com>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-17 20:17:14 -05:00
Rafael J. Wysocki
5d8b532af9 ACPI suspend: Fix compilation warnings in drivers/acpi/sleep.c
Fix two compilation warnings in drivers/acpi/sleep.c, one triggered
by unsetting CONFIG_SUSPEND and the other triggered by unsetting
CONFIG_HIBERNATION, by moving some code under the appropriate
#ifdefs .

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-16 18:15:31 -05:00
Len Brown
88d998c264 Merge branch 'misc' into release 2009-01-16 14:45:34 -05:00
Len Brown
f1f055f103 Merge branches 'bugzilla-11884' and 'bugzilla-8544' into release 2009-01-16 14:45:11 -05:00
Len Brown
d08ca2ca74 ACPI: rename main.c to sleep.c
Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-16 14:32:19 -05:00
Zhang Rui
0e4240d946 thermal fixup for broken BIOS which has invalid trip points.
ACPI thermal driver only re-evaluate VALID trip points.

For the broken BIOS show in
http://bugzilla.kernel.org/show_bug.cgi?id=8544
the active[0] is set to invalid at boot time
and it will not be re-evaluated again.
We can still get a single warning message at boot time.

http://marc.info/?l=linux-kernel&m=120496222629983&w=2

http://bugzilla.kernel.org/show_bug.cgi?id=12203

Signed-off-by: Zhang Rui<rui.zhang@intel.com>
Tested-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-16 14:13:12 -05:00
Alexey Starikovskiy
c6cb0e8784 ACPI: EC: Don't trust ECDT tables from ASUS
http://bugzilla.kernel.org/show_bug.cgi?id=9399
http://bugzilla.kernel.org/show_bug.cgi?id=11880

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-16 14:03:32 -05:00
Alexey Starikovskiy
235c4a5927 ACPI: EC: Limit workaround for ASUS notebooks even more
References: http://bugzilla.kernel.org/show_bug.cgi?id=11884

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-16 14:00:51 -05:00
Len Brown
d97c0defba Merge branch 'drivers-platform' into release
Conflicts:
	drivers/misc/Kconfig

Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-09 04:56:56 -05:00
Len Brown
ec9f168fcc Merge branch 'simplify_PRT' into release
Conflicts:
	drivers/acpi/pci_irq.c

Note that this merge disables
e1d3a90846
pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent

Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-09 03:41:08 -05:00
Len Brown
b2576e1d44 Merge branch 'linus' into release 2009-01-09 03:39:43 -05:00
Len Brown
3cc8a5f4ba Merge branch 'suspend' into release 2009-01-09 03:38:15 -05:00
Len Brown
d0302bc62a Merge branch 'misc' into release
Conflicts:
	include/acpi/acpixf.h

Signed-off-by: Len Brown <len.brown@intel.com>
2009-01-09 03:37:48 -05:00