2005-04-16 15:20:36 -07:00
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2017-02-08 11:00:08 +08:00
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2005-04-16 15:20:36 -07:00
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2008-12-31 03:01:23 +08:00
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2017-08-03 14:27:48 +08:00
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2008-12-31 03:01:23 +08:00
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2012-10-02 18:01:25 +01:00
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2012-10-08 07:14:06 +09:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:06:22 +08:00
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2014-04-30 10:03:52 +08:00
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2014-04-30 10:06:22 +08:00
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2008-12-31 03:01:23 +08:00
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2014-04-30 10:06:22 +08:00
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2008-12-31 03:01:23 +08:00
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2014-04-30 10:03:52 +08:00
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2012-12-19 05:37:15 +00:00
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2014-04-30 10:03:52 +08:00
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2012-12-19 05:37:15 +00:00
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2014-04-30 10:03:52 +08:00
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2012-12-19 05:37:15 +00:00
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2014-04-30 10:03:52 +08:00
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2008-12-31 03:01:23 +08:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:06:22 +08:00
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2014-04-30 10:05:08 +08:00
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2014-04-30 10:03:52 +08:00
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2014-04-30 10:06:22 +08:00
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2014-04-30 10:03:52 +08:00
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2014-04-30 10:06:22 +08:00
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2014-04-30 10:03:52 +08:00
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2014-05-31 08:14:44 +08:00
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2017-07-10 15:23:45 +08:00
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2014-05-31 08:14:44 +08:00
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2017-07-10 15:23:45 +08:00
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2014-05-31 08:14:44 +08:00
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2014-04-30 10:03:52 +08:00
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2015-12-29 14:04:19 +08:00
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2016-07-11 16:21:08 +02:00
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2015-12-29 14:04:19 +08:00
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ACPICA: Interpreter: Fix MLC issues by switching to new term_list grammar for table loading
ACPICA commit 0e24fb67cde08d7df7671d7d7b183490dc79707e
The MLC (Module Level Code) is an ACPICA terminology describing the AML
code out of any control method, its support is an indication of the
interpreter behavior during the table loading.
The original implementation of MLC in ACPICA had several issues:
1. Out of any control method, besides of the object creating opcodes, only
the code blocks wrapped by "If/Else/While" opcodes were supported.
2. The supported MLC code blocks were executed after loading the table
rather than being executed right in place.
============================================================
The demo of this order issue is as follows:
Name (OBJ1, 1)
If (CND1 == 1)
{
Name (OBJ2, 2)
}
Name (OBJ3, 3)
The original MLC support created OBJ2 after OBJ3's creation.
============================================================
Other than these limitations, MLC support in ACPICA looks correct. And
supporting this should be easy/natural for ACPICA, but enabling of this was
blocked by some ACPICA internal and OSPM specific initialization order
issues we've fixed recently. The wrong support started from the following
false bug fixing commit:
Commit: 7f0c826a437157d2b19662977e9cf3b472cf24a6
Subject: ACPICA: Add support for module-level executable AML code
Commit: 9a884ab64a4d092b4c3bf24fd9a30f7fbd4591e7
Subject: ACPICA: Add additional module-level code support
...
We can confirm Windows interpreter behavior via reverse engineering means.
It can be proven that not only If/Else/While wrapped code blocks, all
opcodes can be executed at the module level, including operation region
accesses. And it can be proven that the MLC should be executed right in
place, not in such a deferred way executed after loading the table.
And the above facts indeed reflect the spec words around ACPI definition
block tables (DSDT/SSDT/...), the entire table and the Scope object is
defined by the AML specification in BNF style as:
AMLCode := def_block_header term_list
def_scope := scope_op pkg_length name_string term_list
The bodies of the scope opening terms (AMLCode/Scope) are all term_list,
thus the table loading should be no difference than the control method
evaluations as the body of the Method is also defined by the AML
specification as term_list:
def_method := method_op pkg_length name_string method_flags term_list
The only difference is: after evaluating control method, created named
objects may be freed due to no reference, while named objects created by
the table loading should only be freed after unloading the table.
So this patch follows the spec and the de-facto standard behavior, enables
the new grammar (term_list) for the table loading.
By doing so, beyond the fixes to the above issues, we can see additional
differences comparing to the old grammar based table loading:
1. Originally, beyond the scope opening terms (AMLCode/Scope),
If/Else/While wrapped code blocks under the scope creating terms
(Device/power_resource/Processor/thermal_zone) are also supported as
deferred MLC, which violates the spec defined grammar where object_list
is enforced. With MLC support improved as non-deferred, the interpreter
parses such scope creating terms as term_list rather object_list like the
scope opening terms.
After probing the Windows behavior and proving that it also parses these
terms as term_list, we submitted an ECR (Engineering Change Request) to
the ASWG (ACPI Specification Working Group) to clarify this. The ECR is
titled as "ASL Grammar Clarification for Executable AML Opcodes" and has
been accepted by the ASWG. The new grammar will appear in ACPI
specification 6.2.
2. Originally, Buffer/Package/operation_region/create_XXXField/bank_field
arguments are evaluated in a deferred way after loading the table. With
MLC support improved, they are also parsed right in place during the
table loading.
This is also Windows compliant and the only difference is the removal
of the debugging messages implemented before acpi_ds_execute_arguments(),
see Link # [1] for the details. A previous commit should have ensured
that acpi_check_address_range() won't regress.
Note that enabling this feature may cause regressions due to long term
Linux ACPI support on top of the wrong grammar. So this patch also prepares
a global option to be used to roll back to the old grammar during the
period between a regression is reported and the regression is
root-cause-fixed. Lv Zheng.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=112911 # [1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=117671 # [1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=153541 # [1]
Link: https://github.com/acpica/acpica/issues/122
Link: https://bugs.acpica.org/show_bug.cgi?id=963
Link: https://github.com/acpica/acpica/commit/0e24fb67
Reported-and-tested-by: Chris Bainbridge <chris.bainbridge@gmail.com>
Reported-by: Ehsan <dashesy@gmail.com>
Reported-and-tested-by: Dutch Guy <lucht_piloot@gmx.net>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-09-07 14:06:54 +08:00
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2014-04-30 10:03:52 +08:00
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2015-07-01 14:43:34 +08:00
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2014-04-30 10:03:52 +08:00
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2015-07-01 14:43:34 +08:00
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2014-04-30 10:03:52 +08:00
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2015-07-01 14:43:11 +08:00
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2014-04-30 10:03:52 +08:00
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2015-07-01 14:44:31 +08:00
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2014-04-30 10:03:52 +08:00
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2014-04-30 10:05:34 +08:00
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2014-04-30 10:03:52 +08:00
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2014-04-30 10:04:35 +08:00
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2008-12-31 03:01:23 +08:00
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2014-04-30 10:04:35 +08:00
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2012-12-19 05:37:15 +00:00
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2016-10-18 03:03:57 +08:00
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2014-04-30 10:04:35 +08:00
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2015-07-23 12:52:59 +08:00
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2012-12-19 05:37:15 +00:00
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2014-04-30 10:04:35 +08:00
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2012-12-19 05:37:15 +00:00
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2015-12-29 13:57:01 +08:00
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2015-12-03 10:42:46 +08:00
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2014-04-30 10:04:35 +08:00
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2014-04-30 10:06:22 +08:00
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2014-04-30 10:04:35 +08:00
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2014-04-30 10:06:22 +08:00
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2014-04-30 10:04:35 +08:00
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2008-12-31 03:01:23 +08:00
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2014-04-30 10:06:22 +08:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:06:22 +08:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:06:22 +08:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:05:08 +08:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:05:08 +08:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:05:08 +08:00
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2012-02-14 18:14:27 +08:00
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2013-10-29 09:29:16 +08:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:04:48 +08:00
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2014-04-30 10:06:22 +08:00
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2014-04-30 10:04:48 +08:00
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2014-04-30 10:04:55 +08:00
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2014-04-30 10:06:22 +08:00
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2014-04-30 10:04:55 +08:00
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2014-07-08 10:07:06 +08:00
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2015-12-03 10:42:53 +08:00
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2014-04-30 10:06:22 +08:00
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2005-04-18 22:49:35 -04:00
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2012-12-19 05:36:49 +00:00
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2005-04-16 15:20:36 -07:00
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2016-08-04 16:43:19 +08:00
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2014-04-30 10:05:08 +08:00
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2016-08-04 16:43:19 +08:00
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2005-04-16 15:20:36 -07:00
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2012-12-19 05:36:49 +00:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:05:08 +08:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2013-10-31 09:30:28 +08:00
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2014-04-30 10:05:08 +08:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2012-08-17 13:07:54 +08:00
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2012-07-16 10:21:34 +08:00
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2016-08-04 16:43:19 +08:00
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2014-04-30 10:05:08 +08:00
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2012-07-16 10:21:34 +08:00
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2014-04-30 10:05:08 +08:00
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2012-07-16 10:21:34 +08:00
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2014-04-30 10:05:08 +08:00
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2016-08-04 16:43:19 +08:00
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2012-07-16 10:21:34 +08:00
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2005-04-16 15:20:36 -07:00
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2016-08-04 16:43:19 +08:00
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2007-02-02 19:48:18 +03:00
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2016-08-04 16:43:19 +08:00
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2016-05-05 12:57:53 +08:00
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2014-04-30 10:05:08 +08:00
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2015-04-13 11:48:18 +08:00
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2014-04-30 10:05:08 +08:00
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ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
ACPICA commit cac6790954d4d752a083e6122220b8a22febcd07
This patch back ports Linux acpi_get_table_with_size() and
early_acpi_os_unmap_memory() into ACPICA upstream to reduce divergences.
The 2 APIs are used by Linux as table management APIs for long time, it
contains a hidden logic that during the early stage, the mapped tables
should be unmapped before the early stage ends.
During the early stage, tables are handled by the following sequence:
acpi_get_table_with_size();
parse the table
early_acpi_os_unmap_memory();
During the late stage, tables are handled by the following sequence:
acpi_get_table();
parse the table
Linux uses acpi_gbl_permanent_mmap to distinguish the early stage and the
late stage.
The reasoning of introducing acpi_get_table_with_size() is: ACPICA will
remember the early mapped pointer in acpi_get_table() and Linux isn't able to
prevent ACPICA from using the wrong early mapped pointer during the late
stage as there is no API provided from ACPICA to be an inverse of
acpi_get_table() to forget the early mapped pointer.
But how ACPICA can work with the early/late stage requirement? Inside of
ACPICA, tables are ensured to be remained in "INSTALLED" state during the
early stage, and they are carefully not transitioned to "VALIDATED" state
until the late stage. So the same logic is in fact implemented inside of
ACPICA in a different way. The gap is only that the feature is not provided
to the OSPMs in an accessible external API style.
It then is possible to fix the gap by providing an inverse of
acpi_get_table() from ACPICA, so that the two Linux sequences can be
combined:
acpi_get_table();
parse the table
acpi_put_table();
In order to work easier with the current Linux code, acpi_get_table() and
acpi_put_table() is implemented in a usage counting based style:
1. When the usage count of the table is increased from 0 to 1, table is
mapped and .Pointer is set with the mapping address (VALIDATED);
2. When the usage count of the table is decreased from 1 to 0, .Pointer
is unset and the mapping address is unmapped (INVALIDATED).
So that we can deploy the new APIs to Linux with minimal effort by just
invoking acpi_get_table() in acpi_get_table_with_size() and invoking
acpi_put_table() in early_acpi_os_unmap_memory(). Lv Zheng.
Link: https://github.com/acpica/acpica/commit/cac67909
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-14 15:04:25 +08:00
|
|
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|
|
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|
2014-04-30 10:05:08 +08:00
|
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|
ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel
ACPICA commit cac6790954d4d752a083e6122220b8a22febcd07
This patch back ports Linux acpi_get_table_with_size() and
early_acpi_os_unmap_memory() into ACPICA upstream to reduce divergences.
The 2 APIs are used by Linux as table management APIs for long time, it
contains a hidden logic that during the early stage, the mapped tables
should be unmapped before the early stage ends.
During the early stage, tables are handled by the following sequence:
acpi_get_table_with_size();
parse the table
early_acpi_os_unmap_memory();
During the late stage, tables are handled by the following sequence:
acpi_get_table();
parse the table
Linux uses acpi_gbl_permanent_mmap to distinguish the early stage and the
late stage.
The reasoning of introducing acpi_get_table_with_size() is: ACPICA will
remember the early mapped pointer in acpi_get_table() and Linux isn't able to
prevent ACPICA from using the wrong early mapped pointer during the late
stage as there is no API provided from ACPICA to be an inverse of
acpi_get_table() to forget the early mapped pointer.
But how ACPICA can work with the early/late stage requirement? Inside of
ACPICA, tables are ensured to be remained in "INSTALLED" state during the
early stage, and they are carefully not transitioned to "VALIDATED" state
until the late stage. So the same logic is in fact implemented inside of
ACPICA in a different way. The gap is only that the feature is not provided
to the OSPMs in an accessible external API style.
It then is possible to fix the gap by providing an inverse of
acpi_get_table() from ACPICA, so that the two Linux sequences can be
combined:
acpi_get_table();
parse the table
acpi_put_table();
In order to work easier with the current Linux code, acpi_get_table() and
acpi_put_table() is implemented in a usage counting based style:
1. When the usage count of the table is increased from 0 to 1, table is
mapped and .Pointer is set with the mapping address (VALIDATED);
2. When the usage count of the table is decreased from 1 to 0, .Pointer
is unset and the mapping address is unmapped (INVALIDATED).
So that we can deploy the new APIs to Linux with minimal effort by just
invoking acpi_get_table() in acpi_get_table_with_size() and invoking
acpi_put_table() in early_acpi_os_unmap_memory(). Lv Zheng.
Link: https://github.com/acpica/acpica/commit/cac67909
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-14 15:04:25 +08:00
|
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2014-04-30 10:05:08 +08:00
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2008-04-10 19:06:38 +04:00
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|
2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2016-05-05 12:57:53 +08:00
|
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|
2014-04-30 10:05:08 +08:00
|
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|
2015-07-23 12:52:59 +08:00
|
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|
2014-04-30 10:05:08 +08:00
|
|
|
|
[ACPI] ACPICA 20050930
Completed a major overhaul of the Resource Manager code -
specifically, optimizations in the area of the AML/internal
resource conversion code. The code has been optimized to
simplify and eliminate duplicated code, CPU stack use has
been decreased by optimizing function parameters and local
variables, and naming conventions across the manager have
been standardized for clarity and ease of maintenance (this
includes function, parameter, variable, and struct/typedef
names.)
All Resource Manager dispatch and information tables have
been moved to a single location for clarity and ease of
maintenance. One new file was created, named "rsinfo.c".
The ACPI return macros (return_ACPI_STATUS, etc.) have
been modified to guarantee that the argument is
not evaluated twice, making them less prone to macro
side-effects. However, since there exists the possibility
of additional stack use if a particular compiler cannot
optimize them (such as in the debug generation case),
the original macros are optionally available. Note that
some invocations of the return_VALUE macro may now cause
size mismatch warnings; the return_UINT8 and return_UINT32
macros are provided to eliminate these. (From Randy Dunlap)
Implemented a new mechanism to enable debug tracing for
individual control methods. A new external interface,
acpi_debug_trace(), is provided to enable this mechanism. The
intent is to allow the host OS to easily enable and disable
tracing for problematic control methods. This interface
can be easily exposed to a user or debugger interface if
desired. See the file psxface.c for details.
acpi_ut_callocate() will now return a valid pointer if a
length of zero is specified - a length of one is used
and a warning is issued. This matches the behavior of
acpi_ut_allocate().
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-30 19:03:00 -04:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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|
2016-05-05 12:57:53 +08:00
|
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2005-04-16 15:20:36 -07:00
|
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|
2014-04-30 10:05:08 +08:00
|
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|
2016-05-05 12:57:53 +08:00
|
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|
2005-04-16 15:20:36 -07:00
|
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|
2014-04-30 10:05:08 +08:00
|
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|
2016-05-05 12:57:53 +08:00
|
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|
2005-04-16 15:20:36 -07:00
|
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|
2008-12-31 02:55:32 +08:00
|
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|
2005-04-16 15:20:36 -07:00
|
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|
2014-04-30 10:05:08 +08:00
|
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|
2012-02-14 18:14:27 +08:00
|
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|
2014-04-30 10:05:08 +08:00
|
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|
2013-09-23 09:52:05 +08:00
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2012-02-14 18:14:27 +08:00
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2015-02-05 16:27:03 +08:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:05:08 +08:00
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2010-08-06 09:35:51 +08:00
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|
2005-04-16 15:20:36 -07:00
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|
2011-11-16 11:08:30 +08:00
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2005-04-16 15:20:36 -07:00
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2012-02-14 18:14:27 +08:00
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2013-10-29 09:30:22 +08:00
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2012-02-14 18:14:27 +08:00
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2005-04-16 15:20:36 -07:00
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2011-11-16 11:08:30 +08:00
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2014-04-30 10:05:08 +08:00
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2011-11-16 11:08:30 +08:00
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2014-04-30 10:05:08 +08:00
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2011-11-16 11:08:30 +08:00
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2012-02-14 18:14:27 +08:00
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2005-04-16 15:20:36 -07:00
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2012-02-14 18:14:27 +08:00
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2005-08-05 00:44:28 -04:00
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2012-02-14 18:14:27 +08:00
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2013-10-29 09:30:22 +08:00
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2008-12-30 09:55:48 +08:00
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2011-11-16 11:08:30 +08:00
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2008-12-30 09:55:48 +08:00
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2012-02-14 18:14:27 +08:00
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2005-08-05 00:44:28 -04:00
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2012-02-14 18:14:27 +08:00
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2005-08-05 00:44:28 -04:00
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2012-02-14 18:14:27 +08:00
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2005-04-16 15:20:36 -07:00
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2012-02-14 18:14:27 +08:00
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2010-12-13 13:39:17 +08:00
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2012-02-14 18:14:27 +08:00
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2010-06-25 01:18:39 +02:00
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2012-02-14 18:14:27 +08:00
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2005-04-16 15:20:36 -07:00
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2016-08-04 16:43:39 +08:00
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2014-07-23 13:12:16 +08:00
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2012-02-14 18:14:27 +08:00
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2014-09-30 02:25:42 +02:00
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2008-12-30 09:45:17 +08:00
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2012-02-14 18:14:27 +08:00
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2016-05-05 12:57:53 +08:00
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2005-04-16 15:20:36 -07:00
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2012-02-14 18:14:27 +08:00
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2010-09-16 00:30:43 +02:00
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2005-04-16 15:20:36 -07:00
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2016-05-05 12:57:53 +08:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2011-11-16 14:51:01 +08:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2008-12-30 11:11:57 +08:00
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2014-04-30 10:05:08 +08:00
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2012-12-20 01:07:26 +00:00
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2014-04-30 10:05:08 +08:00
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2012-12-20 01:07:26 +00:00
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2012-02-14 18:14:27 +08:00
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2005-08-05 00:44:28 -04:00
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2012-02-14 18:14:27 +08:00
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2005-04-16 15:20:36 -07:00
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2012-02-14 18:14:27 +08:00
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2014-04-30 10:05:08 +08:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2005-04-16 15:20:36 -07:00
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2013-10-31 09:31:18 +08:00
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2005-04-16 15:20:36 -07:00
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2014-04-30 10:05:08 +08:00
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2005-04-16 15:20:36 -07:00
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2012-12-20 01:07:26 +00:00
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2016-01-04 22:05:20 +01:00
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2015-07-01 14:43:04 +08:00
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2012-02-14 15:22:51 +08:00
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2012-02-14 18:14:27 +08:00
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2012-02-14 15:22:51 +08:00
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2012-02-14 18:14:27 +08:00
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2012-02-14 15:22:51 +08:00
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2008-12-31 03:01:23 +08:00
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2009-04-22 10:20:23 +08:00
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2008-12-31 03:01:23 +08:00
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2014-04-30 10:04:48 +08:00
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2016-02-19 14:16:42 +08:00
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2014-04-30 10:04:48 +08:00
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2016-02-19 14:16:42 +08:00
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2014-04-30 10:04:48 +08:00
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2012-07-16 09:25:27 +08:00
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2009-04-22 10:20:23 +08:00
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2014-04-30 10:04:55 +08:00
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2015-07-23 12:53:07 +08:00
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2016-05-05 12:57:53 +08:00
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2015-08-25 10:30:19 +08:00
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2008-12-31 03:01:23 +08:00
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2014-04-30 10:05:02 +08:00
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2014-07-16 16:57:52 +08:00
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2008-12-31 03:01:23 +08:00
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2015-12-03 10:42:46 +08:00
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2015-10-19 10:25:50 +08:00
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2005-08-05 00:44:28 -04:00
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