Delete the ability to build an ACPI kernel that does
not include PCI support.  When such a machine is created
and it requires a tuned kernel, send a patch.

http://bugzilla.kernel.org/show_bug.cgi?id=1364Signed-off-by: NLen Brown <len.brown@intel.com>

Andi Kleen suggested it was unconventional for us to "default m"
on ACPI modules -- even though they are expected to be deployed
as modules.  But as "default n" would likely result in some
users building nonsense kernels, we compromise to "default y".

Distros are expected to continue to use =m in their configs.
Signed-off-by: NLen Brown <len.brown@intel.com>

Distros are shipping modules we had marked EXPERIMENTAL,
so clearly it has lost some meaning.

Delete that dependency for shipping modules, retaining
it only for ACPI_HOTKEY and ACPI_CONTAINER to emphasize
that they lack testing on real hardware.
Signed-off-by: NLen Brown <len.brown@intel.com>

Build issues were mostly in the ACPI=n case -- don't do that.
Select ACPI from IA64_GENERIC.
Add some missing dependencies on ACPI.

Mark BLACKLIST_YEAR and some laptop-only ACPI drivers
as X86-only.  Let me know when you get an IA64 Laptop.
Signed-off-by: NLen Brown <len.brown@intel.com>

it is a synonym for CONFIG_ACPI
Signed-off-by: NLen Brown <len.brown@intel.com>

it is a synonym for CONFIG_ACPI
Signed-off-by: NLen Brown <len.brown@intel.com>

it has been a synonym for CONFIG_ACPI since 2.6.12
Signed-off-by: NLen Brown <len.brown@intel.com>

When both platform-specific and generic drivers exist,
enable generic over-ride with "acpi_generic_hotkey".

http://bugzilla.kernel.org/show_bug.cgi?id=4953Signed-off-by: NLuming Yu <luming.yu@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

This reverts commits

  71db63ac
	[PATCH] increase PCIBIOS_MIN_IO on x86

and

  0b2bfb4e
    ACPI: increase PCIBIOS_MIN_IO on x86

since Lukas Sandströ<lukass@etek.chalmers.se> reports that this breaks
his on-board nvidia audio.

We should re-visit this later. For now we revert the change
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

There are lots of single-PCI-segment machines that don't
supply _SEG for the root bridges.  The PCI root bridge driver
silently assumes the segment to be zero in this case,
so glue.c shouldn't complain either.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

necessary for clean merge from acpi-2.6.12 to-akpm
Signed-off-by: NLen Brown <len.brown@intel.com>

http://bugzilla.kernel.org/show_bug.cgi?id=3851Signed-off-by: NLuming Yu <luming.yu@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by: NPavel Machek <pavel@suse.cz>
Signed-off-by: NLen Brown <len.brown@intel.com>

prevent:

HOTPLUG_CPU=y
ACPI_PROCESSOR=y
ACPI_HOTPLUG_CPU=n
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

The video driver doesn't properly remove all the notify handlers
on module unload.  This has a side effect of subdevices failing
to register on module reload, but sudden death looms if the
handlers trigger after the module is unloaded.
Signed-off-by: NKarol Kozimor <sziwan@hell.org.pl>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by: NKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

ACPI now uses kmalloc(...,GPF_ATOMIC) during suspend/resume.

http://bugzilla.kernel.org/show_bug.cgi?id=3469Signed-off-by: NDavid Shaohua Li <shaohua.li@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

http://bugzilla.kernel.org/show_bug.cgi?id=4923Signed-off-by: NLen Brown <len.brown@intel.com>

For 2.6.12 behaviour, this (EXPERIMENTAL) driver
should not be built.

Update the driver source with latest from Luming.
Signed-off-by: NLuming Yu <luming.yu@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by Len Brown <len.brown@intel.com>

Burst mode isn't ready for prime time,
but can be enabled for test via "ec_burst=1"
Signed-off-by: NLuming Yu <luming.yu@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

This patch disables the PCI Interrupt Link refernece counts,
which should not co-exist with the 2.6.12 irq_router.resume
method or else a double acpi_pci_link_set() could result
on resume.
Signed-off-by: NDavid Shaohua Li <shaohua.li@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by: NLen Brown <len.brown@intel.com>

We have increased PCIBIOS_MIN_IO to 0x4000, but still want
motherboard resources to be allocated properly. So we need
to state 0x1000 (according to the comment) limit explicitely.
Signed-off-by: NIvan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

If there are devices that use interrupts over a suspend event, ACPI must
restore the PCI interrupt links on resume.  Anything else breaks any
device that hasn't been converted to the new (dubious) PM rules.

Drivers that need the irq free/re-aquire sequence can be done one by one
independently of this one.

Implemented support to ignore an attempt to install/load
a particular ACPI table more than once. Apparently there
exists BIOS code that repeatedly attempts to load the same
SSDT upon certain events. Thanks to Venkatesh Pallipadi.

Restructured the main interface to the AML parser in
order to correctly handle all exceptional conditions. This
will prevent leakage of the OwnerId resource and should
eliminate the AE_OWNER_ID_LIMIT exceptions seen on some
machines. Thanks to Alexey Starikovskiy.

Support for "module level code" has been disabled in this
version due to a number of issues that have appeared
on various machines. The support can be enabled by
defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem
compilation. When the issues are fully resolved, the code
will be enabled by default again.

Modified the internal functions for debug print support
to define the FunctionName parameter as a (const char *)
for compatibility with compiler built-in macros such as
__FUNCTION__, etc.

Linted the entire ACPICA source tree for both 32-bit
and 64-bit.
Signed-off-by: NRobert Moore <robert.moore@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Add reference count and disable ACPI PCI Interrupt Link
when no device still uses it.

Warn when drivers have not released Link at suspend time.

http://bugzilla.kernel.org/show_bug.cgi?id=3469Signed-off-by: NDavid Shaohua Li <shaohua.li@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

http://bugzilla.kernel.org/show_bug.cgi?id=4401Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

EC burst mode benefits many machines, some of
them significantly.  However, our current
implementation fails on some machines such
as Rafael's Asus L5D.

This patch restores the alternative EC polling code,
which can be enabled at boot time via "ec_polling"

http://bugzilla.kernel.org/show_bug.cgi?id=4665Signed-off-by: NLuming Yu <luming.yu@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

http://bugzilla.kernel.org/show_bug.cgi?id=4763Signed-off-by: NDavid Shaohua Li <shaohua.li@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

http://bugzilla.kernel.org/show_bug.cgi?id=4954Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

where C-states come from FADT.

Thanks to Kevin Radloff for identifying the issue and
isolating it to exact line of code that is causing the issue.
Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

It is important that we support module level code --
BIOS's implement it.  But this implementation needs
more testing.
Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by: NLen Brown <len.brown@intel.com>

Now that all of the code paths that call acpi_power_off
have been modified to call either call kernel_power_off
(which calls apci_sleep_prepare by way of acpi_shutdown)
or to call acpi_sleep_prepare directly it is redundant to call
acpi_sleep_prepare from acpi_power_off.

So simplify the code and simply don't call acpi_sleep_prepare.

In addition there is a little error handling done so if we
can't register the acpi class we don't hook pm_power_off.

I think I have done the right thing with the CONFIG_PM define
but I'm not certain.  Can this code even be compiled if
CONFIG_PM is false?
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

machine_power_off on i386 and x86_64 now switch to the
boot cpu out of paranoia and because the MP Specification indicates it
is a good idea on reboot, so for those architectures it is a noop.
I can't see anything in the acpi spec that requires you to be on
the boot cpu to power off the system, so this should not be an issue
for ia64.  In addition ia64 has the altix a massive multi-node
system where switching to the boot cpu sounds insane as we may
hot removed the boot cpu.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

http://bugzilla.kernel.org/show_bug.cgi?id=4534Signed-off-by: NLuming Yu <luming.yu@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

The use of the CPU stack in the debug version of the
subsystem has been considerably reduced.  Previously, a
debug structure was declared in every function that used
the debug macros.  This structure has been removed in
favor of declaring the individual elements as parameters
to the debug functions.  This reduces the cumulative stack
use during nested execution of ACPI function calls at the
cost of a small increase in the code size of the debug
version of the subsystem.  With assistance from Alexey
Starikovskiy and Len Brown.

Added the ACPI_GET_FUNCTION_NAME macro to enable the
compiler-dependent headers to define a macro that will
return the current function name at runtime (such as
__FUNCTION__ or _func_, etc.) The function name is used
by the debug trace output.  If ACPI_GET_FUNCTION_NAME
is not defined in the compiler-dependent header, the
function name is saved on the CPU stack (one pointer per
function.) This mechanism is used because apparently there
exists no standard ANSI-C defined macro that that returns
the function name.

Alexey Starikovskiy redesigned and reimplemented the
"Owner ID" mechanism used to track namespace objects
created/deleted by ACPI tables and control method
execution.  A bitmap is now used to allocate and free the
IDs, thus solving the wraparound problem present in the
previous implementation.  The size of the namespace node
descriptor was reduced by 2 bytes as a result.

Removed the UINT32_BIT and UINT16_BIT types that were used
for the bitfield flag definitions within the headers for
the predefined ACPI tables.  These have been replaced by
UINT8_BIT in order to increase the code portability of
the subsystem.  If the use of UINT8 remains a problem,
we may be forced to eliminate bitfields entirely because
of a lack of portability.

Alexey Starikovksiy enhanced the performance of
acpi_ut_update_object_reference.  This is a frequently used
function and this improvement increases the performance
of the entire subsystem.

Alexey Starikovskiy fixed several possible memory leaks
and the inverse - premature object deletion.
Signed-off-by: NLen Brown <len.brown@intel.com>