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trailing underscores
ACPICA commit 51a49c2fb4a73f302a6df2b8ddc1350dd261684d
It is better to use unified ASL path name to interact with the developers.
There are following acpi_ns_build_normalized_pathname() users invoking it for
debugging purposes (acpiexec test results are attached):
1. acpi_ut_display_init_pathname (acpi_ns_handle_to_pathname):
---------------------------------------------
Initializing Region \_SB.H_EC.ECF2
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2. acpi_ns_print_node_pathname (acpi_ns_handle_to_pathname):
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- ex \_SB.H_EC._STA
Evaluating \_SB.H_EC._STA
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3. acpi_ds_print_node_pathname (acpi_ns_handle_to_pathname):
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- level 211b console
- execute \M1
...
**** Exception AE_AML_UNINITIALIZED_ARG during execution of method [\M1] (Node 009CB6B8)
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4. acpi_ex_dump_reference_obj (acpi_ns_handle_to_pathname):
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- dump \_TZ.FAN4._PR0
...
[00] 00835E98 [Object Reference] Type [Named Object] 05 00828878 \_TZ.FN04
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5. acpi_db_bus_walk (acpi_ns_handle_to_pathname):
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- businfo
\_SB.PCI0 Type 6
...
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6. acpi_db_walk_and_match_name (acpi_ns_handle_to_pathname):
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- find _PR0
\_TZ.FAN4._PR0 Package 002D8DF8 01 Elements 01
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7. acpi_db_walk_for_specific_objects (acpi_ns_handle_to_pathname):
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- methods
...
\_SB.PCI0._PRT Method 0026D918 01 Args 0 Len 0005 Aml 0026B199
...
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8. acpi_db_decode_and_dispaly_object (acpi_get_name):
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- gpes
Block 0 - Info 003AC7B0 device_node 003A0E08 [\_GPE] - FADT-defined GPE block
...
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9. acpi_db_display_gpes (acpi_get_name):
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- dump \_GPE
Object (003A0E08) Pathname: \_GPE
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10.ae_miscellaneous_tests (acpi_get_name):
No output available
This patch cleans up all of the above usages. ACPICA BZ 1178, Lv Zheng.
Linux kernel's ACPICA debugging messages may also be changed.
Link: https://github.com/acpica/acpica/commit/51a49c2f
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>
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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 <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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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 <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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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 <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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