When CONFIG_ACPI_DEBUG=y, the default acpi_dbg_layer and acpi_dbg_level
values built into the ACPI CA have some debug output enabled.  We'd
rather be quiet unless the user actually specified the acpi.debug_level
argument.

This enables distros to ship with CONFIG_ACPI_DEBUG=y without
inundating users with debug output.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

/sys/module/acpi/parameters/debug_layers used to contain only the
debug layers defined by the ACPI CA.  This patch adds the additional
layer definitions for ACPI drivers.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Move all the component definitions for drivers to a single shared place,
include/acpi/acpi_drivers.h.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Impact: cleanup

Use MACRO for rev 3 fadt id instead of 3 directly.
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLen Brown <len.brown@intel.com>

This reverts commit 8fd14591.

http://bugzilla.kernel.org/show_bug.cgi?id=11942Signed-off-by: NLen Brown <len.brown@intel.com>

Remove CONFIG_ACPI_EC.  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".

Per section 6.5.4 of the ACPI 3.0b specification,

    OSPM must make Embedded Controller operation regions, accessed
    via the Embedded Controllers described in ECDT, available before
    executing any control method.

The ECDT table is optional, but if it is present, the above text
means that the EC it describes is a required part of the ACPI
subsystem, so CONFIG_ACPI_EC=n wouldn't make sense.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: NAlexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: NLen Brown <len.brown@intel.com>

Remove CONFIG_ACPI_POWER.  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".

The interfaces under CONFIG_ACPI_POWER (acpi_device_sleep_wake(),
acpi_power_transition(), etc) are called unconditionally from the
ACPI core, so we already depend on it always being present.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

acpi_cm_sbs_init() doesn't do anything, so we can just remove it.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

I don't think there's any point in cluttering the code with these.
Better to improve the documentation so *anybody* can figure out
what layer & level to use.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: NLen Brown <len.brown@intel.com>

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

Currently not always an EV_SYN event is reported to userland
after the EV_SW SW_LID event has been sent. This is easy to verify
by using “input-events” from input-utils and just closing and opening
the lid.
Signed-off-by: NGuillem Jover <guillem.jover@nokia.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

When trying to build 2.6.28-rc1 on ia64, make aborts with:

  CC      drivers/acpi/processor_perflib.o
  drivers/acpi/processor_perflib.c:41:28: error: asm/cpufeature.h: No such file or directory
  drivers/acpi/processor_perflib.c: In function ‘acpi_processor_get_performance_info’:
  drivers/acpi/processor_perflib.c:364: error: implicit declaration of function ‘boot_cpu_has’
  drivers/acpi/processor_perflib.c:364: error: ‘X86_FEATURE_EST’ undeclared (first use in this function)
  drivers/acpi/processor_perflib.c:364: error: (Each undeclared identifier is reported only once
  drivers/acpi/processor_perflib.c:364: error: for each function it appears in.)
  make[2]: *** [drivers/acpi/processor_perflib.o] Error 1
  make[1]: *** [drivers/acpi] Error 2
  make: *** [drivers] Error 2

this patch fix it.
Signed-off-by: NMiao Xie <miaox@cn.fujitsu.com>
Acked-by: NThomas Renninger <trenn@suse.de>
Signed-off-by: NLen Brown <len.brown@intel.com>

To avoid dock driver is loaded after other drivers like libata, let's
make dock driver not a module.
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

    There exists the following warning message will appear after the
following commit is merged.
   >commit f2e969acd6d5981e6b1272810002558650d0736e
   >Author: Zhao Yakui <yakui.zhao@intel.com>
   >Date:   Mon Aug 11 14:57:50 2008 +0800
    >ACPI: Add "acpi.power_nocheck=1" to disable power state check in
power transition:

   >WARNING: at linux-2.6/fs/sysfs/dir.c:463  sysfs_add_one+0x33/0x39()
   >sysfs: duplicate filename 'acpi' can not be created
   >kobject_add_internal failed for acpi with -EEXIST, don't try to register
            things with the same name in the same directory

   In the above commit the "acpi.power_nocheck" module parameter is defined
in drivers/acpi/power.c file. As several module parameters using the same ACPI
prefix are defined in the different files(for example: power_nocheck is
defined in drivers/acpi/power.c,debug_layer/debug_level are defined in
drivers/acpi/debug.c) and there exists another module between them, the
warning message will be printed when using the current generic param code.
(In the function of param_sysfs_init).

   In fact when ACPI is selected, the drivers/acpi/power will also be compiled
as built-in kernel.So this issue can be fixed by the following approach.
   workaround it by adjusting the module link order in drivers/acpi/Makefile.
In such case the module parameter using the same prefix(ACPI) are put together
in the param data section.

   Of course the better solution is to fix it in generic param code related
with sysfs.
Signed-off-by: NZhao Yakui <yakui.zhao@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/acpi/sleep/main.c:27: warning: ‘acpi_target_sleep_state’ defined but not used
Signed-off-by: NLen Brown <len.brown@intel.com>

Allow zero length strings during interpreter buffer-to-string
conversions. For example, during the ToDecimalString and
ToHexString operaters, as well as implicit conversions. Fiodor
Suietov.  ACPICA BZ 585.

http://www.acpica.org/bugzilla/show_bug.cgi?id=585Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Validates predefined ACPI objects that appear in the namespace,
at the time they are evaluated. The argument count and the type of
the returned object are validated. The purpose of this validation
is to detect problems with the BIOS-exposed predefined ACPI objects
before the results are returned to the ACPI-related drivers.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Predicate can be used for an implicit return value.
This change improves the implicit return mechanism to be more
compatible with the MS interpreter.

http://www.acpica.org/bugzilla/show_bug.cgi?id=349

Below AML code from http://bugzilla.kernel.org/show_bug.cgi?id=10686

	Store(0x07D6, OSYS)
	Method (_CRT, 0, Serialized)
	{
	    If (LLess (OSYS, 0x07D6))
	    {
		If (LEqual (\_SB.TJ85, Zero))
		{
		    Return (Add (0x0AAC, Multiply (TPC, 0x0A)))
		}
		Else
		{
		    Return (Add (0x0AAC, Multiply (TP85, 0x0A)))
		}
	    }
	}

Previously _CRT returns 0x07D6, now it returns 0 (predicate value of LLess)
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Fixed a couple memory leaks associated with "implicit return" objects
when the AML Interpreter slack mode is enabled.

http://www.acpica.org/bugzilla/show_bug.cgi?id=349Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Eliminate duplicate code.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Fixed two possible memory leaks in the error exit paths of
acpi_ut_update_objerct_reference() and
acpi_ut_walk_package_tree()
These functions are similar in that they use a stack of state objects in
order to eliminate recursion. The stack must be fully deallocated
if an error occurs.

http://www.acpica.org/bugzilla/show_bug.cgi?id=383Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Fixes a crash if a memory allocation fails during the Op completion
routine acpi_ps_complete_this_op().

http://www.acpica.org/bugzilla/show_bug.cgi?id=492Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Removed the ACPI_BITREG_WAKE_ENABLE definition and entry in the
global register table. This bit does not exist and is unused.

http://www.acpica.org/bugzilla/show_bug.cgi?id=442Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Fixes a memory leak in the error exit path.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Fix some sloppiness in the Reference object. No longer use AML
opcodes to differentiate the types, introduce new reference
Class. Cleanup the debug output code.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Some formatting and spelling fixes.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

1) Add new field for use by DdbHandle (Value)
2) Use ACPI_CAST_INDIRECT_PTR to eliminate strict type warnings
3) Cleanup debug output
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Previously aborted with error if too few arguments were passed to
a control method via the external ACPICA interface. Now issue a
warning instead and continue. Handles the case where the method
inadvertently declares too many arguments, but does not actually
use the extra ones.  Applies mainly to the predefined methods.

http://bugzilla.kernel.org/show_bug.cgi?id=11032Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Return AE_TYPE for objects that have no value and therefore
evaluation is undefined: Device, Event, Mutex, Region, Thermal,
and Scope.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Removed ACPI_DB_WARN and ACPI_DB_ERROR. These debug levels were
made obsolete by the ACPI_WARNING and ACPI_ERROR/ACPI_EXCEPTION
interfaces.  Also added ACPI_DB_EVENTS to correspond with the
existing ACPI_LV_EVENTS.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

ACPI_DB_ERROR and ACPI_DB_WARN were removed from ACPICA core.
So replace ACPI_DEBUG_PRINT((ACPI_DB_ERROR, ...) with printk(KERN_ERR PREFIX ...)
and ACPI_DEBUG_PRINT((ACPI_DB_WARN, ...) with printk(KERN_WARNING PREFIX ...)

We do not use ACPI_ERROR/ACPI_WARNING since they're not exported, see
-------------------------------------------------------------
commit 6468463a
Author: Len Brown <len.brown@intel.com>
Date:   Mon Jun 26 23:41:38 2006 -0400

    ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)
Signed-off-by: NLen Brown <len.brown@intel.com>
-------------------------------------------------------------
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Reference: http://marc.info/?l=linux-acpi&m=122236382701062&w=2Signed-off-by: NAlexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: NSitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Better error messages during object conversion from internal
to the external ACPI_OBJECT. Used for external calls to
acpi_evaluate_object.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Created for improved error messages.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Also update the debugger so that the correct number of arguments is
passed to the method. Prevents a warning message from the debugger.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Fixes warning from exconfig.c on 64-bit build.

AK: This actually was fixed earlier in Linux, this just syncs with
AK: the version of the fix that went into the ACPCA codebase
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Examines the return object from a call to acpi_evaluate_object.
Any Index or RefOf references are automatically dereferenced in
an attempt to return something useful (these reference types
cannot be converted into an external ACPI_OBJECT.)
Lin Ming, Bob Moore.

http://bugzilla.kernel.org/show_bug.cgi?id=11105Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Return status from acpi_ut_init_globals. This is used by both
the kernel subsystem and the utilities such as iASL compiler.
The function could possibly fail when the caches are initialized.
Yang Yi.
Signed-off-by: NYi Yang <yi.y.yang@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Split the ACPI table compare. First check that the lengths match
exactly. Then compare the data.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>