ACPICA commit 7926d5ca9452c87f866938dcea8f12e1efb58f89

There is an issue in acpi_install_gpe_handler() and acpi_remove_gpe_handler().
The code to obtain the GPE dispatcher type from the Handler->original_flags
is wrong:
    if (((Handler->original_flags & ACPI_GPE_DISPATCH_METHOD) ||
         (Handler->original_flags & ACPI_GPE_DISPATCH_NOTIFY)) &&
ACPI_GPE_DISPATCH_NOTIFY is 0x03 and ACPI_GPE_DISPATCH_METHOD is 0x02, thus
this statement is TRUE for the following dispatcher types:
    0x01 (ACPI_GPE_DISPATCH_HANDLER): not expected
    0x02 (ACPI_GPE_DISPATCH_METHOD): expected
    0x03 (ACPI_GPE_DISPATCH_NOTIFY): expected

There is no functional issue due to this because Handler->original_flags is
only set in acpi_install_gpe_handler(), and an earlier checker has excluded
the ACPI_GPE_DISPATCH_HANDLER:
    if ((gpe_event_info->Flags & ACPI_GPE_DISPATCH_MASK) ==
            ACPI_GPE_DISPATCH_HANDLER)
    {
        Status = AE_ALREADY_EXISTS;
        goto free_and_exit;
    }
    ...
    Handler->original_flags = (u8) (gpe_event_info->Flags &
        (ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK));

We need to clean this up before modifying the GPE dispatcher type values.

In order to prevent such issue from happening in the future, this patch
introduces ACPI_GPE_DISPATCH_TYPE() macro to be used to obtain the GPE
dispatcher types. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/7926d5caSigned-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NDavid E. Box <david.e.box@linux.intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

ACPICA commit 8823b44ff53859ab24ecfcfd3fba8cc56b17d223

Currently we rely on the logic that GPE blocks will never be deleted,
otherwise we can be broken by the race between acpi_ev_create_gpe_block(),
acpi_ev_delete_gpe_block() and acpi_ev_gpe_detect().
On the other hand, if we want to protect GPE block creation/deletion, we
need to use a different synchronization facility to protect the period
between acpi_ev_gpe_dispatch() and acpi_ev_asynch_enable_gpe(). Which leaves us
no choice but abandoning the ACPI_MTX_EVENTS used during this period.

This patch removes ACPI_MTX_EVENTS used during this period and the
acpi_ev_valid_gpe_event() to reflect current restriction. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/8823b44fSigned-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NDavid E. Box <david.e.box@linux.intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

This is a back port result of the Linux commit:
  Commit c50f13c6
  Subject: ACPICA: Save current masks of enabled GPEs after enable register writes

Besides of the indent divergences, only a missing prototype added due to
the ACPICA internal coding style.
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Update ACPICA copyrights to 2014. Includes all source headers and
signons for the various tools.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

1) Return an actual status value from acpi_ev_get_gpe_xrupt_block.
2) Don't clobber the status when exiting acpi_ev_install_gpe_block.

References: https://bugs.acpica.org/show_bug.cgi?id=1019Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

It is reported by kernel build test systems that all ACPICA source
files in the kernel tree have incorrect label indentation.  This
patch changes default indent option used in the release process to
fix this bug.  Lv Zheng.
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

This change adds support to allow hosts to install System Control
Interrupt handlers. Certain ACPI functionality requires the host
to handle raw SCIs. For example, the "SCI Doorbell" that is defined
for memory power state support requires the host device driver to
handle SCIs to examine if the doorbell has been activated. Multiple
SCI handlers can be installed to allow for future expansion.
Debugger support is included.
Lv Zheng, Bob Moore. ACPICA BZ 1032.

Bug summary:
It is reported when the PCC (Platform Communication Channel, via
MPST table, defined in ACPI specification 5.0) subchannel responds
to the host, it issues an SCI and the host must probe the subchannel
for channel status.

Buglink: http://bugs.acpica.org/show_bug.cgi?id=1032Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Reviewed-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Includes all source headers and signons for the various tools.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

New version of "indent" program will generate different outputs that
will lead to the divergences between the Linux and the ACPICA.
This patch fixes such divergences caused by the "indent" program.
The version of the "indent" used for this patch is "GNU indent 2.2.11".

This patch will not affect the generated vmlinux binary.
This will decrease 581 lines of 20120913 divergence.diff.
Signed-off-by: NRobert Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Fixes issues like this:

i_aSL -> iASL
00-7_f -> 00-7F
local_fADT -> local_FADT
execute_oSI -> execute_OSI

Also, in function headers, the parameters are now translated to
lower case (with underscores if necessary.)
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>

Adds basic support to allow multiple devices to be implicitly
notified.

This change is partially derived from original commit 981858bd("ACPI /
ACPICA: Implicit notify for multiple devices") by Rafael.
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: NJung-uk Kim <jkim@freebsd.org>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Add ACPI_REDUCED_HARDWARE flag that removes all hardware-related
code (about 10% code, 5% static data).
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>

Update all copyrights to 2012.
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>

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>

Create a new file evxfgpe.c and move GPE specific functions to it.
Acked-by: NRafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: NLin Ming <ming.m.lin@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Create two new files, evgpeinit.c and evgpeutil.c. Updated
unix and linux makefiles.
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>