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linux/drivers/acpi/acpica
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Hans de Goede 54c516aeb8 ACPICA: Allow address_space_handler Install and _REG execution as 2 separate steps 
ACPI-2.0 says that the EC op_region handler must be available immediately
(like the standard default op_region handlers):

Quoting from the ACPI spec version 6.3: "6.5.4 _REG (Region) ...
2. OSPM must make Embedded Controller operation regions, accessed via
the Embedded Controllers described in ECDT, available before executing
any control method. These operation regions may become inaccessible
after OSPM runs _REG(EmbeddedControl, 0)."

So the OS must probe the ECDT described EC and install the OpRegion handler
before calling acpi_enable_subsystem() and acpi_initialize_objects().

This is a problem because calling acpi_install_address_space_handler()
does not just install the op_region handler, it also runs the EC's _REG
method. This _REG method may rely on initialization done by the _INI
methods of one of the PCI / _SB root devices.

For the other early/default op_region handlers the op_region handler
install and the _REG execution is split into 2 separate steps:
1. acpi_ev_install_region_handlers(), called early from acpi_load_tables()
2. acpi_ev_initialize_op_regions(), called from acpi_initialize_objects()

To fix the EC op_region issue, add 2 bew functions:
1. acpi_install_address_space_handler_no_reg()
2. acpi_execute_reg_methods()
to allow doing things in 2 steps for other op_region handlers,
like the EC handler, too.

Note that the comment describing acpi_ev_install_region_handlers() even has
an alinea describing this problem. Using the new methods allows users
to avoid this problem.

Link: https://github.com/acpica/acpica/pull/786
Link: https://bugzilla.kernel.org/show_bug.cgi?id=214899
Reported-and-tested-by: Johannes Penßel <johannespenssel@posteo.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-12-08 17:38:28 +01:00
..
acapps.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
accommon.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acconvert.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acdebug.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acdispat.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acevents.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acglobal.h ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
achware.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acinterp.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
aclocal.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acmacros.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acnamesp.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acobject.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acopcode.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acparser.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acpredef.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acresrc.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
acstruct.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
actables.h ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
acutils.h ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
amlcode.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
amlresrc.h ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dbcmds.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
dbconvert.c ACPICA: debugger: remove leading whitespaces when converting a string to a buffer 2019-10-28 22:12:46 +01:00
dbdisply.c ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism 2020-06-05 13:34:23 +02:00
dbexec.c ACPICA: Debugger: Add a new command: "ALL <NameSeg>" 2020-10-08 18:03:55 +02:00
dbfileio.c ACPICA: make acpi_load_table() return table index 2019-10-28 22:12:46 +01:00
dbhistry.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dbinput.c ACPICA: add type casts for string functions 2021-01-22 15:51:53 +01:00
dbmethod.c ACPICA: Debugger: Add a new command: "ALL <NameSeg>" 2020-10-08 18:03:55 +02:00
dbnames.c ACPICA: debugger: surround field unit output with braces '{' 2019-10-28 22:12:46 +01:00
dbobject.c ACPICA: Clean up exception code class checks 2021-01-18 16:01:10 +01:00
dbstats.c ACPICA: Fully deploy ACPI_PRINTF_LIKE macro 2019-08-21 00:00:37 +02:00
dbtest.c ACPICA: Debugger: Fix possible fault with the "test objects" command 2019-02-18 11:21:10 +01:00
dbutils.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
dbxface.c ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support 2020-03-30 14:52:32 +02:00
dsargs.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dscontrol.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dsdebug.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dsfield.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dsinit.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dsmethod.c ACPICA: Fix error code path in acpi_ds_call_control_method() 2022-11-08 20:37:23 +01:00
dsmthdat.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
dsobject.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dsopcode.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dspkginit.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dsutils.c ACPICA: Remove defines that use deprecated flag 2018-12-13 22:40:51 +01:00
dswexec.c ACPICA: Fix operand resolution 2022-12-08 17:38:28 +01:00
dswload2.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dswload.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dswscope.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
dswstate.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evevent.c ACPICA: Events: Support fixed PCIe wake event 2022-10-28 17:28:22 +02:00
evglock.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evgpe.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evgpeblk.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evgpeinit.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evgpeutil.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evhandler.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evmisc.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evregion.c ACPICA: Add support for FFH Opregion special context data 2022-10-28 17:28:22 +02:00
evrgnini.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evsci.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
evxface.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evxfevnt.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evxfgpe.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
evxfregn.c ACPICA: Allow address_space_handler Install and _REG execution as 2 separate steps 2022-12-08 17:38:28 +01:00
exconcat.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exconfig.c ACPICA: Make acpi_ex_load_op() match upstream 2022-10-28 17:27:04 +02:00
exconvrt.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
excreate.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exdebug.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exdump.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exfield.c ACPICA: Add support for FFH Opregion special context data 2022-10-28 17:28:22 +02:00
exfldio.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exmisc.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exmutex.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exnames.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exoparg1.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exoparg2.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exoparg3.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exoparg6.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exprep.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exregion.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exresnte.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exresolv.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exresop.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exserial.c ACPICA: Add support for FFH Opregion special context data 2022-10-28 17:28:22 +02:00
exstore.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exstoren.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exstorob.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exsystem.c Revert "ACPICA: executer/exsystem: Warn about sleeps greater than 10 ms" 2022-05-21 18:02:26 +02:00
extrace.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
exutils.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
hwacpi.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
hwesleep.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
hwgpe.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
hwpci.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
hwregs.c ACPICA: Clean up double word in comment 2022-04-13 20:24:57 +02:00
hwsleep.c ACPICA: Events: Support fixed PCIe wake event 2022-10-28 17:28:22 +02:00
hwtimer.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
hwvalid.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
hwxface.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
hwxfsleep.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
Makefile ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
nsaccess.c ACPICA: Always create namespace nodes using acpi_ns_create_node() 2021-03-24 14:50:54 +01:00
nsalloc.c ACPICA: Remove unnecessary semicolon 2020-10-08 18:03:56 +02:00
nsarguments.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsconvert.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsdump.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsdumpdv.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nseval.c ACPICA: remove legacy module-level code due to deprecation 2019-07-04 00:59:43 +02:00
nsinit.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsload.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsnames.c ACPICA: Fixes for acpiExec namespace init file 2020-03-30 14:52:33 +02:00
nsobject.c ACPICA: Namespace: remove address node from global list after method termination 2019-04-09 10:05:11 +02:00
nsparse.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nspredef.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsprepkg.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsrepair2.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsrepair.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nssearch.c ACPICA: Revert "iASL: change processing of external op namespace nodes for correctness" 2018-07-09 11:14:45 +02:00
nsutils.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nswalk.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsxfeval.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
nsxfname.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
nsxfobj.c ACPICA: Tree-wide: fix various typos and spelling mistakes 2020-10-08 18:03:55 +02:00
psargs.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
psloop.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
psobject.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
psopcode.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
psopinfo.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
psparse.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
psscope.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
pstree.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
psutils.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
pswalk.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
psxface.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
rsaddr.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
rscalc.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rscreate.c ACPICA: More Clang changes 2019-10-28 22:12:46 +01:00
rsdump.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsdumpinfo.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsinfo.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsio.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
rsirq.c ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting 2019-02-24 21:12:01 +01:00
rslist.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsmemory.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
rsmisc.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsserial.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsutils.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
rsxface.c ACPICA: Rename nameseg compare macro for clarity 2019-04-09 10:08:28 +02:00
tbdata.c ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
tbfadt.c ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
tbfind.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
tbinstal.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
tbprint.c ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
tbutils.c ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
tbxface.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
tbxfload.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
tbxfroot.c ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
utaddress.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utalloc.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utascii.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utbuffer.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utcache.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utcksum.c ACPICA: Finish support for the CDAT table 2022-10-28 17:28:23 +02:00
utcopy.c ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() 2022-12-02 20:32:38 +01:00
utdebug.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utdecode.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utdelete.c ACPICA: Utilities: Avoid deleting the same object twice in a row 2021-12-27 17:01:28 +01:00
uterror.c ACPICA: Increase total number of possible Owner IDs 2019-08-21 00:00:36 +02:00
uteval.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utexcep.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
utglobal.c ACPICA: Events: Support fixed PCIe wake event 2022-10-28 17:28:22 +02:00
uthex.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utids.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utinit.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utlock.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utmath.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
utmisc.c ACPICA: Rename nameseg compare macro for clarity 2019-04-09 10:08:28 +02:00
utmutex.c ACPICA: Convert acpi_gbl_hardware lock back to an acpi_raw_spinlock 2018-05-10 17:18:45 +02:00
utnonansi.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
utobject.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utosi.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utownerid.c ACPICA: Increase total number of possible Owner IDs 2019-08-21 00:00:36 +02:00
utpredef.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utprint.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utresdecode.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
utresrc.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
utstate.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
utstring.c ACPICA: Improve warning message for "invalid ACPI name" 2022-10-28 17:28:23 +02:00
utstrsuppt.c ACPICA: add type casts for string functions 2021-01-22 15:51:53 +01:00
utstrtoul64.c ACPICA: Utilities: split hex detection into smaller functions 2018-08-14 23:49:13 +02:00
uttrack.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utuuid.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utxface.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utxferror.c ACPICA: Convert more ACPI errors to firmware errors 2019-01-15 18:04:02 +01:00
utxfinit.c ACPICA: Update copyright notices to the year 2022 2022-04-13 20:24:57 +02:00
utxfmutex.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00