kernel.git/drivers/acpi/acpica/dsmethod.c, branch linux-4.4.y

ACPICA: Dispatcher: Update thread ID for recursive method calls

2016-05-11T09:21:20Z

commit 93d68841a23a5779cef6fb9aa0ef32e7c5bd00da upstream. ACPICA commit 7a3bd2d962f221809f25ddb826c9e551b916eb25 Set the mutex owner thread ID. Original patch from: Prarit Bhargava Link: https://bugzilla.kernel.org/show_bug.cgi?id=115121 Link: https://github.com/acpica/acpica/commit/7a3bd2d9 Signed-off-by: Prarit Bhargava Tested-by: Andy Lutomirski # On a Dell XPS 13 9350 Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman

ACPICA: Debugger: Move debugger specific APIs to debugger component

2015-07-23T21:09:08Z

ACPICA commit 2164923d60429eea7cd5a4a8629b607af7325afa Some disassembler APIs should rather be debugger APIs. This patch moves them to the debugger folder to be ready for debugger porting. Since there is no in-kernel ACPICA debugger in the kernel source tree, this patch doesn't affect the Linux kernel. Link: https://github.com/acpica/acpica/commit/2164923d Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Remove extraneous check for null walk_state

2015-07-23T21:09:08Z

ACPICA commit f9fd6e8bad0f16ce2b436c5cda36ced0c2d85302 Reported by Markus Elfring. Link: https://github.com/acpica/acpica/commit/f9fd6e8b Signed-off-by: Markus Elfring Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki

ACPICA: Executer: Add interpreter tracing mode for method tracing facility

2015-07-23T21:09:07Z

ACPICA commit 07fffd02607685b655ed92ee15c160e6a810b60b The acpi_debug_trace() is the mechanism known as ACPI method tracing that is used by Linux as ACPICA debugging message reducer. This facility can be controlled through Linux ACPI subsystem - /sys/module/acpi/parameters. This facility requires CONFIG_ACPI_DEBUG to be enabled to see ACPICA trace logs in the kernel dmesg output. This patch enhances acpi_debug_trace() to make it not only a message reducer, but a real tracer to trace AML interpreter execution. Note that in addition to the AML tracer enabling, this patch also updates the facility with the following enhancements: 1. Allow a full path to be specified by the acpi_debug_trace() API. 2. Allow any method rather than just the entrance of acpi_evaluate_object() to be traced. 3. All interpreter ACPI_LV_TRACE_POINT messages are collected for ACPI_EXECUTER layer. The Makefile of drivers/acpi/acpica is also updated to include exdebug.o and the duplicated stubs are removed after that. Note that since this patch has enhanced the method tracing facility, Linux need also be updated after applying this patch. Lv Zheng. Link: https://github.com/acpica/acpica/commit/07fffd02 Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Dispatcher: Add trace support for interpreter

2015-07-23T21:09:07Z

ACPICA commit 71299ec8b49054daace0df50268e8e055654ca37 This patch adds trace point at the following point: 1. Begin/end of a control method execution; 2. Begin/end of an opcode execution. The trace point feature can be enabled by defining ACPI_DEBUG_OUTPUT and specifying a debug level that includes ACPI_LV_TRACDE_POINT and the debug layers that include ACPI_PARSER and ACPI_DISPACTCHER. In order to make aml_op_name of union acpi_parse_object usable for tracer, it is enabled for ACPI_DEBUG_OUTPUT in this patch. Lv Zheng. Link: https://github.com/acpica/acpica/commit/71299ec8 Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Dispatcher: Move stack traversal code to dispatcher

2015-07-23T21:09:06Z

ACPICA commit c8275e243b58fd4adfc0362bd704af41ed14bc75 This patch moves parts of acpi_dm_dump_method_info() to the dispatcher component. This patch also makes the new function dependent on ACPI_DEBUG_OUTPUT compile-stage definition so that it can be used by the trace facility. acpi_dm_dump_method_info() traverses method stack when an exception is encountered. Such traversal is needed to support method tracing for the exceptions. When an exception is encountered, the end indications of the aborted methods should be logged in order not to break the user space analysis tool. Lv Zheng. Link: https://github.com/acpica/acpica/commit/c8275e24 Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Dispatcher: Cleanup union acpi_operand_object's AML address assignments

2015-07-23T21:09:06Z

ACPICA commit afb52611dbe7403551f93504d3798534f5c343f4 This patch cleans up the code of assigning the AML address to the union acpi_operand_object. The idea behind this cleanup is: The AML address of the union acpi_operand_object should always be determined at the point where the object is encountered. It should be started from the first byte of the object. For example, the opcode of the object, the name string of the user_term object, or the first byte of the packaged object (where a pkg_length is prefixed). So it's not cleaner to have it assigned here and there in the entire ACPICA source tree. There are some special cases for the internal opcodes, before cleaning up the internal opcodes, we should also determine the rules for the AML addresses of the internal opcodes: 1. INT_NAMEPATH_OP: the address of the first byte for the name_string. 2. INT_METHODCALL_OP: the address of the first byte for the name_string. 3. INT_BYTELIST_OP: the address of the first byte for the byte_data list. 4. INT_EVAL_SUBTREE_OP: the address of the first byte for the Region/Package/Buffer/bank_field/Field arguments. 5. INT_NAMEDFIELD_OP: the address to the name_seg. 6. INT_RESERVEDFIELD_OP: the address to the 0x00 prefix. 7. INT_ACCESSFIELD_OP: the address to the 0x01 prefix. 8. INT_CONNECTION_OP: the address to the 0x02 prefix. 9: INT_EXTACCESSFIELD_OP: the address to the 0x03 prefix. 10.INT_RETURN_VALUE_OP: the address of the replaced operand. 11.computational_data: the address to the Byte/Word/Dword/Qword/string_prefix. Before cleaning up the internal root scope of the aml_walk, turning it into the term_list, we need to remember the aml_start address as the "Aml" attribute for the union acpi_operand_object created by acpi_ps_create_scope_op(). Finally, we can delete some redundant AML address assignment in psloop.c. Link: https://github.com/acpica/acpica/commit/afb52611 Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Parser: Cleanup aml_offset in struct acpi_walk_state

2015-07-23T21:09:06Z

ACPICA commit d254405814495058276c0c2f9d96794d15a6c91c This patch converts aml_offset in struct acpi_walk_state to AML address. AML offset is actually only used by the debugger, using AML address is more direct and efficient during the parsing stage so that we don't need to calculate it during the parsing stage. On the other hand, we can see several issues in the current parser logic around the aml_offset: 1. union acpi_operand_object.Common.aml_offset is redundantly assigned in acpi_ps_parse_loop(). 2. aml_offset is not an indication of the offset from the table header but the offset from the entry of a list of objects. Sometimes, it indicates an entry for a Method/Package/Buffer, which makes it difficult to be reversely calculated to a table header offset. 3. When being used with method tracers (for example, Linux function trace), it's better to have AML address logged instead of the AML offset because the address is the only attribute that can uniquely identify the opcode. This patch is required to solve the above issues. Lv Zheng. Link: https://github.com/acpica/acpica/commit/d2544058 Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

ACPICA: Dispatcher: Fix a resource leak issue in acpi_ds_auto_serialize_method().

2015-05-22T01:22:20Z

ACPICA commit 29d03840cbab435e8ea82e9339ff9d84535c647d This patch fixes a resource leak issue in acpi_ds_auto_serialize_method(). It is reported by the "Coverity" tool as unsecure code. Lv Zheng. Link: https://github.com/acpica/acpica/commit/29d03840 Link: https://jira01.devtools.intel.com/browse/LCK-2142 Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki

2015-02-05T14:31:43Z

ACPICA commit 8990e73ab2aa15d6a0068b860ab54feff25bee36 Link: https://github.com/acpica/acpica/commit/8990e73a Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki

kernel.git/drivers/acpi/acpica/dsmethod.c, branch linux-4.4.y

ACPICA: Dispatcher: Update thread ID for recursive method calls

ACPICA: Debugger: Move debugger specific APIs to debugger component

ACPICA: Remove extraneous check for null walk_state

ACPICA: Executer: Add interpreter tracing mode for method tracing facility

ACPICA: Dispatcher: Add trace support for interpreter

ACPICA: Dispatcher: Move stack traversal code to dispatcher

ACPICA: Dispatcher: Cleanup union acpi_operand_object's AML address assignments

ACPICA: Parser: Cleanup aml_offset in struct acpi_walk_state

ACPICA: Dispatcher: Fix a resource leak issue in acpi_ds_auto_serialize_method().

ACPICA: Update Copyright headers to 2015