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Groups > linux.kernel > #1190604 > unrolled thread
| Started by | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| First post | 2015-07-23 07:00 +0200 |
| Last post | 2015-07-29 03:50 +0200 |
| Articles | 13 — 3 participants |
Back to article view | Back to linux.kernel
[PATCH 00/22] ACPICA: 20150717 Release Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:00 +0200
[PATCH 04/22] ACPICA: Dispatcher: Cleanup union acpi_operand_object's AML address assignments. Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:00 +0200
[PATCH 05/22] ACPICA: Executer: Add back pointing reference of method operand. Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:00 +0200
[PATCH 09/22] ACPICA: Executer: Add interpreter tracing mode for method tracing facility. Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:00 +0200
[PATCH 3/4] ACPI / Documentation: Update method tracing documentation. Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:10 +0200
[PATCH 2/4] ACPI / sysfs: Update method tracing facility. Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:10 +0200
[PATCH 1/4] ACPI / sysfs: Add ACPI_LV_REPAIR debug level. Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:10 +0200
[PATCH 4/4] ACPI / sysfs: Add support to allow leading "\" missing in trace_method_name. Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:10 +0200
[PATCH 0/4] ACPI: Update method tracing facility. Lv Zheng <lv.zheng@intel.com> - 2015-07-23 07:10 +0200
RE: [PATCH 0/4] ACPI: Update method tracing facility. "Zheng, Lv" <lv.zheng@intel.com> - 2015-07-24 04:10 +0200
RE: [PATCH 0/4] ACPI: Update method tracing facility. "Zheng, Lv" <lv.zheng@intel.com> - 2015-07-27 02:50 +0200
Re: [PATCH 00/22] ACPICA: 20150717 Release "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-07-29 02:40 +0200
RE: [PATCH 00/22] ACPICA: 20150717 Release "Zheng, Lv" <lv.zheng@intel.com> - 2015-07-29 03:50 +0200
| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:00 +0200 |
| Subject | [PATCH 00/22] ACPICA: 20150717 Release |
| Message-ID | <pPgLU-4QI-7@gated-at.bofh.it> |
The 20150717 ACPICA kernel-resident subsystem updates are linuxized based
on the linux-pm/linux-next branch.
The patchset has passed the following build/boot tests.
Build tests are performed as follows:
1. i386 + default + COFNIG_ACPI=y
2. i386 + allyes + CONFIG_ACPI=y
3. i386 + default + COFNIG_ACPI=n
4. i386 + allyes + CONFIG_ACPI=n
5. x86_64 + default + COFNIG_ACPI=y
6. x86_64 + allyes + CONFIG_ACPI=y
7. x86_64 + default + COFNIG_ACPI=n
8. x86_64 + allyes + CONFIG_ACPI=n
Boot tests are performed as follows:
1. i386 + default + COFNIG_ACPI=y
2. x86_64 + default + COFNIG_ACPI=y
Where:
1. i386: machine named as "Dell Inspiron Mini 1010"
2. x86_64: machine named as "HP Compaq 8200 Elite SFF PC"
3. default: kernel configuration with following items enabled:
All hardware drivers related to the machines of i386/x86_64
All "drivers/acpi" configurations
All "drivers/platform" drivers
All other drivers that link the APIs provided by ACPICA subsystem
The divergences checking result:
Before applying (20150619 Release):
539 lines
After applying (20150717 Release):
518 lines
Note that the reduction is due to:
1. The FACS related divergences are not counted;
2. Some debugger related divergences are merged in this release as the
configurability of the debugger code has improved.
Bob Moore (6):
ACPICA: iASL: Add new warnings for method local_x and arg_x
variables.
ACPICA: Cleanup use of all non-ANSI local C library functions.
ACPICA: Cleanup use of NEGATIVE and POSITIVE defines.
ACPICA: iASL: Add support for TCPA Server Table.
ACPICA: iASL/Disassembler: Add prototype verbose mode.
ACPICA: Update version to 20150717.
Lv Zheng (15):
ACPICA: Parser: Reduce parser/namespace divergences for tracer
support.
ACPICA: Parser: Cleanup aml_offset in struct acpi_walk_state.
ACPICA: Parser: Cleanup aml_offset in union acpi_operand_object.
ACPICA: Dispatcher: Cleanup union acpi_operand_object's AML address
assignments.
ACPICA: Executer: Add back pointing reference of method operand.
ACPICA: Namespace: Add function to directly return normalized full
path.
ACPICA: Dispatcher: Move stack traversal code to dispatcher.
ACPICA: Dispatcher: Add trace support for interpreter.
ACPICA: Executer: Add interpreter tracing mode for method tracing
facility.
ACPICA: Executer: Add OSL trace hook support.
ACPICA: Executer: Add option to bypass opcode tracing.
ACPICA: Parser: Remove redundant opcode execution debugging output.
ACPICA: MSVC: Fix inclusion order issue of <crtdbg.h>.
ACPICA: Debugger: Reduce structure size for debugger.
ACPICA: Debugger: Move debugger specific APIs to debugger component.
Markus Elfring (1):
ACPICA: Remove extraneous check for null walk_state.
drivers/acpi/acpica/Makefile | 2 +
drivers/acpi/acpica/acdebug.h | 19 ++
drivers/acpi/acpica/acdispat.h | 8 +
drivers/acpi/acpica/acglobal.h | 3 +-
drivers/acpi/acpica/acinterp.h | 22 +++
drivers/acpi/acpica/aclocal.h | 11 +-
drivers/acpi/acpica/acmacros.h | 9 +
drivers/acpi/acpica/acnamesp.h | 13 +-
drivers/acpi/acpica/acobject.h | 1 +
drivers/acpi/acpica/acparser.h | 4 +-
drivers/acpi/acpica/acstruct.h | 2 +-
drivers/acpi/acpica/acutils.h | 23 ++-
drivers/acpi/acpica/dsargs.c | 4 +-
drivers/acpi/acpica/dsdebug.c | 231 +++++++++++++++++++++++
drivers/acpi/acpica/dsmethod.c | 35 ++--
drivers/acpi/acpica/dswload.c | 2 +-
drivers/acpi/acpica/dswload2.c | 2 +-
drivers/acpi/acpica/excreate.c | 1 +
drivers/acpi/acpica/exdebug.c | 324 ++++++++++++++++++++++++++++++++
drivers/acpi/acpica/exdump.c | 5 +-
drivers/acpi/acpica/nsnames.c | 275 +++++++++++++++------------
drivers/acpi/acpica/nsparse.c | 42 ++---
drivers/acpi/acpica/nsutils.c | 2 +-
drivers/acpi/acpica/nsxfname.c | 8 +-
drivers/acpi/acpica/psargs.c | 26 +--
drivers/acpi/acpica/psloop.c | 18 +-
drivers/acpi/acpica/psobject.c | 17 +-
drivers/acpi/acpica/psparse.c | 14 +-
drivers/acpi/acpica/psutils.c | 8 +-
drivers/acpi/acpica/psxface.c | 123 +-----------
drivers/acpi/acpica/rscreate.c | 3 +-
drivers/acpi/acpica/utdebug.c | 31 +++-
drivers/acpi/acpica/utdelete.c | 3 +
drivers/acpi/acpica/utinit.c | 2 -
drivers/acpi/acpica/utmisc.c | 2 +-
drivers/acpi/acpica/utnonansi.c | 380 ++++++++++++++++++++++++++++++++++++++
drivers/acpi/acpica/utstring.c | 342 ----------------------------------
include/acpi/acoutput.h | 21 ++-
include/acpi/acpiosxf.h | 6 +
include/acpi/acpixf.h | 13 +-
include/acpi/actbl2.h | 17 +-
include/acpi/actypes.h | 11 +-
include/acpi/platform/acenvex.h | 3 +
include/acpi/platform/acmsvcex.h | 54 ++++++
include/acpi/platform/acwinex.h | 49 +++++
45 files changed, 1491 insertions(+), 700 deletions(-)
create mode 100644 drivers/acpi/acpica/dsdebug.c
create mode 100644 drivers/acpi/acpica/utnonansi.c
create mode 100644 include/acpi/platform/acmsvcex.h
create mode 100644 include/acpi/platform/acwinex.h
--
1.7.10
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| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:00 +0200 |
| Subject | [PATCH 04/22] ACPICA: Dispatcher: Cleanup union acpi_operand_object's AML address assignments. |
| Message-ID | <pPgLV-4QI-47@gated-at.bofh.it> |
| In reply to | #1190604 |
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 <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
---
drivers/acpi/acpica/acparser.h | 4 ++--
drivers/acpi/acpica/dsargs.c | 4 ++--
drivers/acpi/acpica/dsmethod.c | 2 +-
drivers/acpi/acpica/dswload.c | 2 +-
drivers/acpi/acpica/dswload2.c | 2 +-
drivers/acpi/acpica/nsparse.c | 40 +++++++++++++++++++---------------------
drivers/acpi/acpica/psargs.c | 21 ++++++++++++---------
drivers/acpi/acpica/psloop.c | 3 ---
drivers/acpi/acpica/psobject.c | 2 +-
drivers/acpi/acpica/psparse.c | 12 ++++++++----
drivers/acpi/acpica/psutils.c | 8 +++++---
drivers/acpi/acpica/psxface.c | 2 +-
12 files changed, 53 insertions(+), 49 deletions(-)
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h
index 0cdd2fc..6021ccf 100644
--- a/drivers/acpi/acpica/acparser.h
+++ b/drivers/acpi/acpica/acparser.h
@@ -225,11 +225,11 @@ void acpi_ps_delete_parse_tree(union acpi_parse_object *root);
/*
* psutils - parser utilities
*/
-union acpi_parse_object *acpi_ps_create_scope_op(void);
+union acpi_parse_object *acpi_ps_create_scope_op(u8 *aml);
void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode);
-union acpi_parse_object *acpi_ps_alloc_op(u16 opcode);
+union acpi_parse_object *acpi_ps_alloc_op(u16 opcode, u8 *aml);
void acpi_ps_free_op(union acpi_parse_object *op);
diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c
index 3e69897..e2ab59e 100644
--- a/drivers/acpi/acpica/dsargs.c
+++ b/drivers/acpi/acpica/dsargs.c
@@ -86,7 +86,7 @@ acpi_ds_execute_arguments(struct acpi_namespace_node *node,
/* Allocate a new parser op to be the root of the parsed tree */
- op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP);
+ op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP, aml_start);
if (!op) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
@@ -129,7 +129,7 @@ acpi_ds_execute_arguments(struct acpi_namespace_node *node,
/* Evaluate the deferred arguments */
- op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP);
+ op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP, aml_start);
if (!op) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index bf8c16e..4abc242 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -103,7 +103,7 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node,
/* Create/Init a root op for the method parse tree */
- op = acpi_ps_alloc_op(AML_METHOD_OP);
+ op = acpi_ps_alloc_op(AML_METHOD_OP, obj_desc->method.aml_start);
if (!op) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 845ff44..097188a 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -388,7 +388,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
/* Create a new op */
- op = acpi_ps_alloc_op(walk_state->opcode);
+ op = acpi_ps_alloc_op(walk_state->opcode, walk_state->aml);
if (!op) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index fcaa30c..e2c08cd 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -335,7 +335,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
/* Create a new op */
- op = acpi_ps_alloc_op(walk_state->opcode);
+ op = acpi_ps_alloc_op(walk_state->opcode, walk_state->aml);
if (!op) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c
index 9926a67c..3736d43b 100644
--- a/drivers/acpi/acpica/nsparse.c
+++ b/drivers/acpi/acpica/nsparse.c
@@ -78,6 +78,20 @@ acpi_ns_one_complete_parse(u32 pass_number,
ACPI_FUNCTION_TRACE(ns_one_complete_parse);
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Table must consist of at least a complete header */
+
+ if (table->length < sizeof(struct acpi_table_header)) {
+ return_ACPI_STATUS(AE_BAD_HEADER);
+ }
+
+ aml_start = (u8 *)table + sizeof(struct acpi_table_header);
+ aml_length = table->length - sizeof(struct acpi_table_header);
+
status = acpi_tb_get_owner_id(table_index, &owner_id);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
@@ -85,7 +99,7 @@ acpi_ns_one_complete_parse(u32 pass_number,
/* Create and init a Root Node */
- parse_root = acpi_ps_create_scope_op();
+ parse_root = acpi_ps_create_scope_op(aml_start);
if (!parse_root) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
@@ -98,23 +112,12 @@ acpi_ns_one_complete_parse(u32 pass_number,
return_ACPI_STATUS(AE_NO_MEMORY);
}
- status = acpi_get_table_by_index(table_index, &table);
+ status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
+ aml_start, aml_length, NULL,
+ (u8)pass_number);
if (ACPI_FAILURE(status)) {
acpi_ds_delete_walk_state(walk_state);
- acpi_ps_free_op(parse_root);
- return_ACPI_STATUS(status);
- }
-
- /* Table must consist of at least a complete header */
-
- if (table->length < sizeof(struct acpi_table_header)) {
- status = AE_BAD_HEADER;
- } else {
- aml_start = (u8 *)table + sizeof(struct acpi_table_header);
- aml_length = table->length - sizeof(struct acpi_table_header);
- status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
- aml_start, aml_length, NULL,
- (u8)pass_number);
+ goto cleanup;
}
/* Found OSDT table, enable the namespace override feature */
@@ -124,11 +127,6 @@ acpi_ns_one_complete_parse(u32 pass_number,
walk_state->namespace_override = TRUE;
}
- if (ACPI_FAILURE(status)) {
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup;
- }
-
/* start_node is the default location to load the table */
if (start_node && start_node != acpi_gbl_root_node) {
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index 0bee946..29d8b7b 100644
--- a/drivers/acpi/acpica/psargs.c
+++ b/drivers/acpi/acpica/psargs.c
@@ -287,7 +287,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
"Control Method - %p Desc %p Path=%p\n", node,
method_desc, path));
- name_op = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP);
+ name_op = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP, start);
if (!name_op) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
@@ -535,13 +535,11 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
/* Allocate a new field op */
- field = acpi_ps_alloc_op(opcode);
+ field = acpi_ps_alloc_op(opcode, aml);
if (!field) {
return_PTR(NULL);
}
- field->common.aml = aml;
-
/* Decode the field type */
switch (opcode) {
@@ -603,6 +601,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
* Argument for Connection operator can be either a Buffer
* (resource descriptor), or a name_string.
*/
+ aml = parser_state->aml;
if (ACPI_GET8(parser_state->aml) == AML_BUFFER_OP) {
parser_state->aml++;
@@ -615,7 +614,8 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
/* Non-empty list */
- arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP);
+ arg =
+ acpi_ps_alloc_op(AML_INT_BYTELIST_OP, aml);
if (!arg) {
acpi_ps_free_op(field);
return_PTR(NULL);
@@ -664,7 +664,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
parser_state->aml = pkg_end;
} else {
- arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP);
+ arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP, aml);
if (!arg) {
acpi_ps_free_op(field);
return_PTR(NULL);
@@ -729,7 +729,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
/* Constants, strings, and namestrings are all the same size */
- arg = acpi_ps_alloc_op(AML_BYTE_OP);
+ arg = acpi_ps_alloc_op(AML_BYTE_OP, parser_state->aml);
if (!arg) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
@@ -776,7 +776,8 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
/* Non-empty list */
- arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP);
+ arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP,
+ parser_state->aml);
if (!arg) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
@@ -806,7 +807,9 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
/* null_name or name_string */
- arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP);
+ arg =
+ acpi_ps_alloc_op(AML_INT_NAMEPATH_OP,
+ parser_state->aml);
if (!arg) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index d584383..49c60c2 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -137,7 +137,6 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
}
if (arg) {
- arg->common.aml = walk_state->aml;
acpi_ps_append_arg(op, arg);
}
@@ -491,8 +490,6 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
continue;
}
- op->common.aml = walk_state->aml;
-
if (walk_state->op_info) {
ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
"Opcode %4.4X [%s] Op %p Aml %p\n",
diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c
index 6ba3bb7..e54bc2a 100644
--- a/drivers/acpi/acpica/psobject.c
+++ b/drivers/acpi/acpica/psobject.c
@@ -297,7 +297,7 @@ acpi_ps_create_op(struct acpi_walk_state *walk_state,
/* Create Op structure and append to parent's argument list */
walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
- op = acpi_ps_alloc_op(walk_state->opcode);
+ op = acpi_ps_alloc_op(walk_state->opcode, aml_op_start);
if (!op) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c
index a555f7f..b857ad5 100644
--- a/drivers/acpi/acpica/psparse.c
+++ b/drivers/acpi/acpica/psparse.c
@@ -185,7 +185,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
* op must be replaced by a placeholder return op
*/
replacement_op =
- acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
+ acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP,
+ op->common.aml);
if (!replacement_op) {
status = AE_NO_MEMORY;
}
@@ -209,7 +210,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
|| (op->common.parent->common.aml_opcode ==
AML_VAR_PACKAGE_OP)) {
replacement_op =
- acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
+ acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP,
+ op->common.aml);
if (!replacement_op) {
status = AE_NO_MEMORY;
}
@@ -224,7 +226,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
AML_VAR_PACKAGE_OP)) {
replacement_op =
acpi_ps_alloc_op(op->common.
- aml_opcode);
+ aml_opcode,
+ op->common.aml);
if (!replacement_op) {
status = AE_NO_MEMORY;
} else {
@@ -240,7 +243,8 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
default:
replacement_op =
- acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
+ acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP,
+ op->common.aml);
if (!replacement_op) {
status = AE_NO_MEMORY;
}
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index 3244091..183cc1e 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -60,11 +60,11 @@ ACPI_MODULE_NAME("psutils")
* DESCRIPTION: Create a Scope and associated namepath op with the root name
*
******************************************************************************/
-union acpi_parse_object *acpi_ps_create_scope_op(void)
+union acpi_parse_object *acpi_ps_create_scope_op(u8 *aml)
{
union acpi_parse_object *scope_op;
- scope_op = acpi_ps_alloc_op(AML_SCOPE_OP);
+ scope_op = acpi_ps_alloc_op(AML_SCOPE_OP, aml);
if (!scope_op) {
return (NULL);
}
@@ -103,6 +103,7 @@ void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode)
* FUNCTION: acpi_ps_alloc_op
*
* PARAMETERS: opcode - Opcode that will be stored in the new Op
+ * aml - Address of the opcode
*
* RETURN: Pointer to the new Op, null on failure
*
@@ -112,7 +113,7 @@ void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode)
*
******************************************************************************/
-union acpi_parse_object *acpi_ps_alloc_op(u16 opcode)
+union acpi_parse_object *acpi_ps_alloc_op(u16 opcode, u8 *aml)
{
union acpi_parse_object *op;
const struct acpi_opcode_info *op_info;
@@ -149,6 +150,7 @@ union acpi_parse_object *acpi_ps_alloc_op(u16 opcode)
if (op) {
acpi_ps_init_op(op, opcode);
+ op->common.aml = aml;
op->common.flags = flags;
}
diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c
index 841a5ea..1f3f46d 100644
--- a/drivers/acpi/acpica/psxface.c
+++ b/drivers/acpi/acpica/psxface.c
@@ -256,7 +256,7 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
/* Create and init a Root Node */
- op = acpi_ps_create_scope_op();
+ op = acpi_ps_create_scope_op(info->obj_desc->method.aml_start);
if (!op) {
status = AE_NO_MEMORY;
goto cleanup;
--
1.7.10
--
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| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:00 +0200 |
| Subject | [PATCH 05/22] ACPICA: Executer: Add back pointing reference of method operand. |
| Message-ID | <pPgLV-4QI-49@gated-at.bofh.it> |
| In reply to | #1190604 |
ACPICA commit 9dcd124e914e87495fbd1786d9484b962e0823e0
This patch adds back pointing reference of the namespace node for a method
operand. The namespace node then can be used in
acpi_ds_terminate_control_method() to obtain method full path to be used by
tracing facilities. Lv Zheng.
Link: https://github.com/acpica/acpica/commit/9dcd124e
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
---
drivers/acpi/acpica/acobject.h | 1 +
drivers/acpi/acpica/excreate.c | 1 +
drivers/acpi/acpica/utdelete.c | 3 +++
3 files changed, 5 insertions(+)
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index c81d98d..0bd02c4 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -176,6 +176,7 @@ struct acpi_object_method {
u8 param_count;
u8 sync_level;
union acpi_operand_object *mutex;
+ union acpi_operand_object *node;
u8 *aml_start;
union {
acpi_internal_method implementation;
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index aaeea48..ccb7219 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -486,6 +486,7 @@ acpi_ex_create_method(u8 * aml_start,
obj_desc->method.aml_start = aml_start;
obj_desc->method.aml_length = aml_length;
+ obj_desc->method.node = operand[0];
/*
* Disassemble the method flags. Split off the arg_count, Serialized
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index 71fce38..1638312 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -209,6 +209,9 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
acpi_ut_delete_object_desc(object->method.mutex);
object->method.mutex = NULL;
}
+ if (object->method.node) {
+ object->method.node = NULL;
+ }
break;
case ACPI_TYPE_REGION:
--
1.7.10
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[toc] | [prev] | [next] | [standalone]
| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:00 +0200 |
| Subject | [PATCH 09/22] ACPICA: Executer: Add interpreter tracing mode for method tracing facility. |
| Message-ID | <pPgLW-4QI-51@gated-at.bofh.it> |
| In reply to | #1190604 |
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>
---
drivers/acpi/acpica/acdebug.h | 2 +
drivers/acpi/acpica/acglobal.h | 2 -
drivers/acpi/acpica/acinterp.h | 18 +++
drivers/acpi/acpica/dsdebug.c | 25 +---
drivers/acpi/acpica/dsmethod.c | 32 +----
drivers/acpi/acpica/exdebug.c | 271 ++++++++++++++++++++++++++++++++++++++++
drivers/acpi/acpica/psloop.c | 16 +--
drivers/acpi/acpica/psparse.c | 4 +-
drivers/acpi/acpica/psxface.c | 121 ++----------------
drivers/acpi/acpica/utinit.c | 2 -
include/acpi/acoutput.h | 13 ++
include/acpi/acpixf.h | 6 +-
12 files changed, 327 insertions(+), 185 deletions(-)
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 43685dd..88482f7 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -102,6 +102,8 @@ void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg);
acpi_status acpi_db_sleep(char *object_arg);
+void acpi_db_trace(char *enable_arg, char *method_arg, char *once_arg);
+
void acpi_db_display_locks(void);
void acpi_db_display_resources(char *object_arg);
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 53f96a3..5342300 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -290,8 +290,6 @@ ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]);
ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level);
ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer);
-ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_level);
-ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_layer);
/*****************************************************************************
*
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index 7ac9800..a3c6e2a 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -131,6 +131,24 @@ void
acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
u32 level, u32 index);
+void
+acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
+ union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state);
+
+void
+acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
+ union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state);
+
+void
+acpi_ex_start_trace_opcode(union acpi_parse_object *op,
+ struct acpi_walk_state *walk_state);
+
+void
+acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
+ struct acpi_walk_state *walk_state);
+
/*
* exfield - ACPI AML (p-code) execution - field manipulation
*/
diff --git a/drivers/acpi/acpica/dsdebug.c b/drivers/acpi/acpica/dsdebug.c
index 7df9b50e..a651d30 100644
--- a/drivers/acpi/acpica/dsdebug.c
+++ b/drivers/acpi/acpica/dsdebug.c
@@ -48,6 +48,7 @@
#ifdef ACPI_DISASSEMBLER
#include "acdisasm.h"
#endif
+#include "acinterp.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME("dsdebug")
@@ -128,7 +129,6 @@ acpi_ds_dump_method_stack(acpi_status status,
struct acpi_walk_state *next_walk_state;
struct acpi_namespace_node *previous_method = NULL;
union acpi_operand_object *method_desc;
- char *pathname = NULL;
ACPI_FUNCTION_TRACE(ds_dump_method_stack);
@@ -173,25 +173,10 @@ acpi_ds_dump_method_stack(acpi_status status,
while (next_walk_state) {
method_desc = next_walk_state->method_desc;
- if (method_desc && method_desc->method.node) {
- pathname = acpi_ns_get_normalized_pathname((struct
- acpi_namespace_node
- *)
- method_desc->
- method.node,
- TRUE);
- }
- if (pathname) {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "End method [0x%p:%s] execution.\n",
- method_desc->method.aml_start,
- pathname));
- ACPI_FREE(pathname);
- pathname = NULL;
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "End method [0x%p] execution.\n",
- method_desc->method.aml_start));
+ if (method_desc) {
+ acpi_ex_stop_trace_method((struct acpi_namespace_node *)
+ method_desc->method.node,
+ method_desc, walk_state);
}
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 0fa6f19..ea2bdde 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -327,7 +327,6 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
struct acpi_walk_state *walk_state)
{
acpi_status status = AE_OK;
- char *pathname = NULL;
ACPI_FUNCTION_TRACE_PTR(ds_begin_method_execution, method_node);
@@ -335,17 +334,7 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
return_ACPI_STATUS(AE_NULL_ENTRY);
}
- pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
- if (pathname) {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "Begin method [0x%p:%s] execution.\n",
- obj_desc->method.aml_start, pathname));
- ACPI_FREE(pathname);
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "Begin method [0x%p] execution.\n",
- obj_desc->method.aml_start));
- }
+ acpi_ex_start_trace_method(method_node, obj_desc, walk_state);
/* Prevent wraparound of thread count */
@@ -708,7 +697,6 @@ void
acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
struct acpi_walk_state *walk_state)
{
- char *pathname = NULL;
ACPI_FUNCTION_TRACE_PTR(ds_terminate_control_method, walk_state);
@@ -846,22 +834,8 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
}
}
- if (method_desc->method.node) {
- pathname = acpi_ns_get_normalized_pathname((struct
- acpi_namespace_node
- *)method_desc->
- method.node, TRUE);
- }
- if (pathname) {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "End method [0x%p:%s] execution.\n",
- method_desc->method.aml_start, pathname));
- ACPI_FREE(pathname);
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "End method [0x%p] execution.\n",
- method_desc->method.aml_start));
- }
+ acpi_ex_stop_trace_method((struct acpi_namespace_node *)method_desc->
+ method.node, method_desc, walk_state);
return_VOID;
}
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index 815442b..00ba9fc 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -43,11 +43,15 @@
#include <acpi/acpi.h>
#include "accommon.h"
+#include "acnamesp.h"
#include "acinterp.h"
+#include "acparser.h"
#define _COMPONENT ACPI_EXECUTER
ACPI_MODULE_NAME("exdebug")
+static union acpi_operand_object *acpi_gbl_trace_method_object = NULL;
+
#ifndef ACPI_NO_ERROR_MESSAGES
/*******************************************************************************
*
@@ -70,6 +74,7 @@ ACPI_MODULE_NAME("exdebug")
* enabled if necessary.
*
******************************************************************************/
+
void
acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
u32 level, u32 index)
@@ -308,3 +313,269 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
return_VOID;
}
#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_interpreter_trace_enabled
+ *
+ * PARAMETERS: name - Whether method name should be matched,
+ * this should be checked before starting
+ * the tracer
+ *
+ * RETURN: TRUE if interpreter trace is enabled.
+ *
+ * DESCRIPTION: Check whether interpreter trace is enabled
+ *
+ ******************************************************************************/
+
+static u8 acpi_ex_interpreter_trace_enabled(char *name)
+{
+
+ /* Check if tracing is enabled */
+
+ if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) {
+ return (FALSE);
+ }
+
+ /*
+ * Check if tracing is filtered:
+ *
+ * 1. If the tracer is started, acpi_gbl_trace_method_object should have
+ * been filled by the trace starter
+ * 2. If the tracer is not started, acpi_gbl_trace_method_name should be
+ * matched if it is specified
+ * 3. If the tracer is oneshot style, acpi_gbl_trace_method_name should
+ * not be cleared by the trace stopper during the first match
+ */
+ if (acpi_gbl_trace_method_object) {
+ return (TRUE);
+ }
+ if (name &&
+ (acpi_gbl_trace_method_name &&
+ strcmp(acpi_gbl_trace_method_name, name))) {
+ return (FALSE);
+ }
+ if ((acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) &&
+ !acpi_gbl_trace_method_name) {
+ return (FALSE);
+ }
+
+ return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_start_trace_method
+ *
+ * PARAMETERS: method_node - Node of the method
+ * obj_desc - The method object
+ * walk_state - current state, NULL if not yet executing
+ * a method.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Start control method execution trace
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
+ union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ char *pathname = NULL;
+ u8 enabled = FALSE;
+
+ ACPI_FUNCTION_NAME(ex_start_trace_method);
+
+ if (method_node) {
+ pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ enabled = acpi_ex_interpreter_trace_enabled(pathname);
+ if (enabled && !acpi_gbl_trace_method_object) {
+ acpi_gbl_trace_method_object = obj_desc;
+ acpi_gbl_original_dbg_level = acpi_dbg_level;
+ acpi_gbl_original_dbg_layer = acpi_dbg_layer;
+ acpi_dbg_level = ACPI_TRACE_LEVEL_ALL;
+ acpi_dbg_layer = ACPI_TRACE_LAYER_ALL;
+
+ if (acpi_gbl_trace_dbg_level) {
+ acpi_dbg_level = acpi_gbl_trace_dbg_level;
+ }
+ if (acpi_gbl_trace_dbg_layer) {
+ acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
+ }
+ }
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+exit:
+ if (enabled) {
+ if (pathname) {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "Begin method [0x%p:%s] execution.\n",
+ obj_desc->method.aml_start,
+ pathname));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "Begin method [0x%p] execution.\n",
+ obj_desc->method.aml_start));
+ }
+ }
+ if (pathname) {
+ ACPI_FREE(pathname);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_stop_trace_method
+ *
+ * PARAMETERS: method_node - Node of the method
+ * obj_desc - The method object
+ * walk_state - current state, NULL if not yet executing
+ * a method.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Stop control method execution trace
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
+ union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ char *pathname = NULL;
+ u8 enabled;
+
+ ACPI_FUNCTION_NAME(ex_stop_trace_method);
+
+ if (method_node) {
+ pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto exit_path;
+ }
+
+ enabled = acpi_ex_interpreter_trace_enabled(NULL);
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+ if (enabled) {
+ if (pathname) {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "End method [0x%p:%s] execution.\n",
+ obj_desc->method.aml_start,
+ pathname));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "End method [0x%p] execution.\n",
+ obj_desc->method.aml_start));
+ }
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto exit_path;
+ }
+
+ /* Check whether the tracer should be stopped */
+
+ if (acpi_gbl_trace_method_object == obj_desc) {
+
+ /* Disable further tracing if type is one-shot */
+
+ if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) {
+ acpi_gbl_trace_method_name = NULL;
+ }
+
+ acpi_dbg_level = acpi_gbl_original_dbg_level;
+ acpi_dbg_layer = acpi_gbl_original_dbg_layer;
+ acpi_gbl_trace_method_object = NULL;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+exit_path:
+ if (pathname) {
+ ACPI_FREE(pathname);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_start_trace_opcode
+ *
+ * PARAMETERS: op - The parser opcode object
+ * walk_state - current state, NULL if not yet executing
+ * a method.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Start opcode execution trace
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_start_trace_opcode(union acpi_parse_object *op,
+ struct acpi_walk_state *walk_state)
+{
+
+ ACPI_FUNCTION_NAME(ex_start_trace_opcode);
+
+ if (acpi_ex_interpreter_trace_enabled(NULL)) {
+ if (walk_state->op_info) {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "Begin opcode: %s[0x%p] Class=0x%02x, Type=0x%02x, Flags=0x%04x.\n",
+ op->common.aml_op_name,
+ op->common.aml,
+ walk_state->op_info->class,
+ walk_state->op_info->type,
+ walk_state->op_info->flags));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "Begin opcode: %s[0x%p].\n",
+ op->common.aml_op_name,
+ op->common.aml));
+ }
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_stop_trace_opcode
+ *
+ * PARAMETERS: op - The parser opcode object
+ * walk_state - current state, NULL if not yet executing
+ * a method.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Stop opcode execution trace
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
+ struct acpi_walk_state *walk_state)
+{
+
+ ACPI_FUNCTION_NAME(ex_stop_trace_opcode);
+
+ if (acpi_ex_interpreter_trace_enabled(NULL)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
+ "End opcode: %s[0x%p].\n",
+ op->common.aml_op_name, op->common.aml));
+ }
+}
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index 80339ba..a7de52e 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -51,6 +51,7 @@
#include <acpi/acpi.h>
#include "accommon.h"
+#include "acinterp.h"
#include "acparser.h"
#include "acdispat.h"
#include "amlcode.h"
@@ -498,20 +499,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
op->common.aml));
}
- if (walk_state->op_info) {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "Begin opcode: %s[0x%p] Class=0x%02x, Type=0x%02x, Flags=0x%04x.\n",
- op->common.aml_op_name,
- op->common.aml,
- walk_state->op_info->class,
- walk_state->op_info->type,
- walk_state->op_info->flags));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "Begin opcode: %s[0x%p].\n",
- op->common.aml_op_name,
- op->common.aml));
- }
+ acpi_ex_start_trace_opcode(op, walk_state);
}
/*
diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c
index 97ea0e5..98001d7 100644
--- a/drivers/acpi/acpica/psparse.c
+++ b/drivers/acpi/acpica/psparse.c
@@ -147,9 +147,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
return_ACPI_STATUS(AE_OK); /* OK for now */
}
- ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
- "End opcode: %s[0x%p].\n",
- op->common.aml_op_name, op->common.aml));
+ acpi_ex_stop_trace_opcode(op, walk_state);
/* Delete this op and the subtree below it if asked to */
diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c
index 1f3f46d..4254805 100644
--- a/drivers/acpi/acpica/psxface.c
+++ b/drivers/acpi/acpica/psxface.c
@@ -47,15 +47,12 @@
#include "acdispat.h"
#include "acinterp.h"
#include "actables.h"
+#include "acnamesp.h"
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psxface")
/* Local Prototypes */
-static void acpi_ps_start_trace(struct acpi_evaluate_info *info);
-
-static void acpi_ps_stop_trace(struct acpi_evaluate_info *info);
-
static void
acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action);
@@ -76,7 +73,7 @@ acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action);
******************************************************************************/
acpi_status
-acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags)
+acpi_debug_trace(const char *name, u32 debug_level, u32 debug_layer, u32 flags)
{
acpi_status status;
@@ -85,108 +82,14 @@ acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags)
return (status);
}
- /* TBDs: Validate name, allow full path or just nameseg */
-
- acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name);
+ acpi_gbl_trace_method_name = name;
acpi_gbl_trace_flags = flags;
-
- if (debug_level) {
- acpi_gbl_trace_dbg_level = debug_level;
- }
- if (debug_layer) {
- acpi_gbl_trace_dbg_layer = debug_layer;
- }
+ acpi_gbl_trace_dbg_level = debug_level;
+ acpi_gbl_trace_dbg_layer = debug_layer;
+ status = AE_OK;
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_start_trace
- *
- * PARAMETERS: info - Method info struct
- *
- * RETURN: None
- *
- * DESCRIPTION: Start control method execution trace
- *
- ******************************************************************************/
-
-static void acpi_ps_start_trace(struct acpi_evaluate_info *info)
-{
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return;
- }
-
- if ((!acpi_gbl_trace_method_name) ||
- (acpi_gbl_trace_method_name != info->node->name.integer)) {
- goto exit;
- }
-
- acpi_gbl_original_dbg_level = acpi_dbg_level;
- acpi_gbl_original_dbg_layer = acpi_dbg_layer;
-
- acpi_dbg_level = 0x00FFFFFF;
- acpi_dbg_layer = ACPI_UINT32_MAX;
-
- if (acpi_gbl_trace_dbg_level) {
- acpi_dbg_level = acpi_gbl_trace_dbg_level;
- }
- if (acpi_gbl_trace_dbg_layer) {
- acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
- }
-
-exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_stop_trace
- *
- * PARAMETERS: info - Method info struct
- *
- * RETURN: None
- *
- * DESCRIPTION: Stop control method execution trace
- *
- ******************************************************************************/
-
-static void acpi_ps_stop_trace(struct acpi_evaluate_info *info)
-{
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return;
- }
-
- if ((!acpi_gbl_trace_method_name) ||
- (acpi_gbl_trace_method_name != info->node->name.integer)) {
- goto exit;
- }
-
- /* Disable further tracing if type is one-shot */
-
- if (acpi_gbl_trace_flags & 1) {
- acpi_gbl_trace_method_name = 0;
- acpi_gbl_trace_dbg_level = 0;
- acpi_gbl_trace_dbg_layer = 0;
- }
-
- acpi_dbg_level = acpi_gbl_original_dbg_level;
- acpi_dbg_layer = acpi_gbl_original_dbg_layer;
-
-exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
}
/*******************************************************************************
@@ -212,7 +115,7 @@ exit:
*
******************************************************************************/
-acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
+acpi_status acpi_ps_execute_method(struct acpi_evaluate_info * info)
{
acpi_status status;
union acpi_parse_object *op;
@@ -243,10 +146,6 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
*/
acpi_ps_update_parameter_list(info, REF_INCREMENT);
- /* Begin tracing if requested */
-
- acpi_ps_start_trace(info);
-
/*
* Execute the method. Performs parse simultaneously
*/
@@ -326,10 +225,6 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
cleanup:
acpi_ps_delete_parse_tree(op);
- /* End optional tracing */
-
- acpi_ps_stop_trace(info);
-
/* Take away the extra reference that we gave the parameters above */
acpi_ps_update_parameter_list(info, REF_DECREMENT);
diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index e402e07..7f897c6 100644
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -204,8 +204,6 @@ acpi_status acpi_ut_init_globals(void)
acpi_gbl_acpi_hardware_present = TRUE;
acpi_gbl_last_owner_id_index = 0;
acpi_gbl_next_owner_id_offset = 0;
- acpi_gbl_trace_dbg_level = 0;
- acpi_gbl_trace_dbg_layer = 0;
acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
acpi_gbl_osi_mutex = NULL;
acpi_gbl_reg_methods_executed = FALSE;
diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index 8f89df9..37f46d4 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -184,6 +184,19 @@
#define ACPI_NORMAL_DEFAULT (ACPI_LV_INIT | ACPI_LV_DEBUG_OBJECT | ACPI_LV_REPAIR)
#define ACPI_DEBUG_ALL (ACPI_LV_AML_DISASSEMBLE | ACPI_LV_ALL_EXCEPTIONS | ACPI_LV_ALL)
+/*
+ * Global trace flags
+ */
+#define ACPI_TRACE_ENABLED ((u32) 2)
+#define ACPI_TRACE_ONESHOT ((u32) 1)
+
+/* Defaults for trace debugging level/layer */
+
+#define ACPI_TRACE_LEVEL_ALL ACPI_LV_ALL
+#define ACPI_TRACE_LAYER_ALL 0x000001FF
+#define ACPI_TRACE_LEVEL_DEFAULT ACPI_LV_TRACE_POINT
+#define ACPI_TRACE_LAYER_DEFAULT ACPI_EXECUTER
+
#if defined (ACPI_DEBUG_OUTPUT) || !defined (ACPI_NO_ERROR_MESSAGES)
/*
* The module name is used primarily for error and debug messages.
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index e8ec18a..9c362cf 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -251,7 +251,9 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_reduced_hardware, FALSE);
* traced each time it is executed.
*/
ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_flags, 0);
-ACPI_INIT_GLOBAL(acpi_name, acpi_gbl_trace_method_name, 0);
+ACPI_INIT_GLOBAL(const char *, acpi_gbl_trace_method_name, NULL);
+ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_dbg_level, ACPI_TRACE_LEVEL_DEFAULT);
+ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_dbg_layer, ACPI_TRACE_LAYER_DEFAULT);
/*
* Runtime configuration of debug output control masks. We want the debug
@@ -504,7 +506,7 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status
acpi_object_handler handler,
void **data))
ACPI_EXTERNAL_RETURN_STATUS(acpi_status
- acpi_debug_trace(char *name, u32 debug_level,
+ acpi_debug_trace(const char *name, u32 debug_level,
u32 debug_layer, u32 flags))
/*
--
1.7.10
--
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| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:10 +0200 |
| Subject | [PATCH 3/4] ACPI / Documentation: Update method tracing documentation. |
| Message-ID | <pPgVB-5hq-11@gated-at.bofh.it> |
| In reply to | #1190604 |
This patch updates method tracing documentation. Signed-off-by: Lv Zheng <lv.zheng@intel.com> --- Documentation/acpi/method-tracing.txt | 53 ++++++++++++++++++++++++--------- 1 file changed, 39 insertions(+), 14 deletions(-) diff --git a/Documentation/acpi/method-tracing.txt b/Documentation/acpi/method-tracing.txt index f6efb1e..c77f91c 100644 --- a/Documentation/acpi/method-tracing.txt +++ b/Documentation/acpi/method-tracing.txt @@ -1,26 +1,51 @@ /sys/module/acpi/parameters/: trace_method_name - The AML method name that the user wants to trace + The full path of the AML method that the user wants to use with the + "method"/"method-once" tracing mode. + Note that the full path shouldn't contain the trailing "_"s in its + name segments but should contain "\" to form an absolute path. trace_debug_layer - The temporary debug_layer used when tracing the method. - Using 0xffffffff by default if it is 0. + The temporary debug_layer used when the tracing feature is enabled. + Using ACPI_EXECUTER (0x80) by default. trace_debug_level - The temporary debug_level used when tracing the method. - Using 0x00ffffff by default if it is 0. + The temporary debug_level used when the tracing feature is enabled. + Using ACPI_LV_TRACE_POINT (0x10) by default. trace_state The status of the tracing feature. - "enabled" means this feature is enabled - and the AML method is traced every time it's executed. + Users can enable/disable this debug tracing feature by executing + the following command: + # echo string > /sys/module/acpi/parameters/trace_state + Where "string" should be one of the followings: + "disable" + Disable the tracing feature. + "enable" + Enable the tracing feature. + ACPICA debugging messages matching + "trace_debug_layer/trace_debug_level" during any method + execution will be logged. + "method" + Enable the tracing feature. + ACPICA debugging messages matching + "trace_debug_layer/trace_debug_level" during method execution + of "trace_method_name" will be logged. + "method-once" + Enable the tracing feature. + ACPICA debugging messages matching + "trace_debug_layer/trace_debug_level" during method execution + of "trace_method_name" will be logged only once. + "opcode" + Enable the tracing feature. + ACPICA debugging messages matching + "trace_debug_layer/trace_debug_level" during method/opcode + execution of "trace_method_name" will be logged. + "opcode-once" + Enable the tracing feature. + ACPICA debugging messages matching + "trace_debug_layer/trace_debug_level" during method/opcode + execution of "trace_method_name" will be logged only once. - "1" means this feature is enabled and the AML method - will only be traced during the next execution. - - "disabled" means this feature is disabled. - Users can enable/disable this debug tracing feature by - "echo string > /sys/module/acpi/parameters/trace_state". - "string" should be one of "enable", "disable" and "1". -- 1.7.10 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:10 +0200 |
| Subject | [PATCH 2/4] ACPI / sysfs: Update method tracing facility. |
| Message-ID | <pPgVB-5hq-15@gated-at.bofh.it> |
| In reply to | #1190604 |
This patch updates the method tracing facility as the acpi_debug_trace()
API has been updated to allow it to trace AML interpreter execution, the
meanings and the usages of the API parameters are changed due to the
updates.
The new API:
1. Uses ACPI_TRACE_ENABLED flag to indicate the enabling of the tracer;
2. Allows tracer still can be enabled when method name is not specified so
that the AML interpreter execution can be traced without knowing the
method name, which is useful for kernel boot tracing;
3. Supports arbitrary full path name, it doesn't need to be a name related
to an entrance of acpi_evaluate_object().
Note that the sysfs parameters are also updated so that when reading the
attribute files, ACPICA internal settings are returned.
In order to make the sysfs parameters (acpi.trace_state) available during
boot, this patch adds code to bypass ACPICA semaphore/mutex invocations
when acpi mutex utilities haven't been initialized.
This patch doesn't update documentation of method tracing facility, it will
be updated by further patches.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
---
drivers/acpi/osl.c | 8 +++
drivers/acpi/sysfs.c | 136 +++++++++++++++++++++++++++++++++++++-------------
2 files changed, 108 insertions(+), 36 deletions(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 1925f1a..21c1e71 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -79,6 +79,7 @@ static void *acpi_irq_context;
static struct workqueue_struct *kacpid_wq;
static struct workqueue_struct *kacpi_notify_wq;
static struct workqueue_struct *kacpi_hotplug_wq;
+static bool acpi_os_initialized;
/*
* This list of permanent mappings is for memory that may be accessed from
@@ -1312,6 +1313,9 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout)
long jiffies;
int ret = 0;
+ if (!acpi_os_initialized)
+ return AE_OK;
+
if (!sem || (units < 1))
return AE_BAD_PARAMETER;
@@ -1351,6 +1355,9 @@ acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units)
{
struct semaphore *sem = (struct semaphore *)handle;
+ if (!acpi_os_initialized)
+ return AE_OK;
+
if (!sem || (units < 1))
return AE_BAD_PARAMETER;
@@ -1859,6 +1866,7 @@ acpi_status __init acpi_os_initialize(void)
rv = acpi_os_map_generic_address(&acpi_gbl_FADT.reset_register);
pr_debug(PREFIX "%s: map reset_reg status %d\n", __func__, rv);
}
+ acpi_os_initialized = true;
return AE_OK;
}
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 7ab6ba4..8979e4a 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -70,6 +70,7 @@ static const struct acpi_dlevel acpi_debug_levels[] = {
ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
ACPI_DEBUG_INIT(ACPI_LV_INFO),
ACPI_DEBUG_INIT(ACPI_LV_REPAIR),
+ ACPI_DEBUG_INIT(ACPI_LV_TRACE_POINT),
ACPI_DEBUG_INIT(ACPI_LV_INIT_NAMES),
ACPI_DEBUG_INIT(ACPI_LV_PARSE),
@@ -163,55 +164,118 @@ static const struct kernel_param_ops param_ops_debug_level = {
module_param_cb(debug_layer, ¶m_ops_debug_layer, &acpi_dbg_layer, 0644);
module_param_cb(debug_level, ¶m_ops_debug_level, &acpi_dbg_level, 0644);
-static char trace_method_name[6];
-module_param_string(trace_method_name, trace_method_name, 6, 0644);
-static unsigned int trace_debug_layer;
-module_param(trace_debug_layer, uint, 0644);
-static unsigned int trace_debug_level;
-module_param(trace_debug_level, uint, 0644);
+static char* trace_method_name;
+static bool trace_method_kmalloced;
-static int param_set_trace_state(const char *val, struct kernel_param *kp)
+int param_set_trace_method_name(const char *val, const struct kernel_param *kp)
{
- int result = 0;
+ u32 saved_flags = 0;
- if (!strncmp(val, "enable", sizeof("enable") - 1)) {
- result = acpi_debug_trace(trace_method_name, trace_debug_level,
- trace_debug_layer, 0);
- if (result)
- result = -EBUSY;
- goto exit;
+ if (strlen(val) > 1024) {
+ pr_err("%s: string parameter too long\n", kp->name);
+ return -ENOSPC;
}
- if (!strncmp(val, "disable", sizeof("disable") - 1)) {
- int name = 0;
- result = acpi_debug_trace((char *)&name, trace_debug_level,
- trace_debug_layer, 0);
- if (result)
- result = -EBUSY;
- goto exit;
- }
+ /*
+ * It's not safe to update acpi_gbl_trace_method_name without
+ * having the tracer stopped, so we save the original tracer
+ * state and disable it.
+ */
+ saved_flags = acpi_gbl_trace_flags;
+ (void)acpi_debug_trace(NULL,
+ acpi_gbl_trace_dbg_level,
+ acpi_gbl_trace_dbg_layer,
+ 0);
+
+ if (trace_method_kmalloced)
+ kfree(trace_method_name);
+ trace_method_name = NULL;
+ trace_method_kmalloced = false;
+
+ /* This is a hack. We can't kmalloc in early boot. */
+ if (slab_is_available()) {
+ trace_method_name = kstrdup(val, GFP_KERNEL);
+ if (!trace_method_name)
+ return -ENOMEM;
+ trace_method_kmalloced = true;
+ } else
+ trace_method_name = (char *)val;
- if (!strncmp(val, "1", 1)) {
- result = acpi_debug_trace(trace_method_name, trace_debug_level,
- trace_debug_layer, 1);
- if (result)
- result = -EBUSY;
- goto exit;
- }
+ /* Restore the original tracer state */
+ (void)acpi_debug_trace(trace_method_name,
+ acpi_gbl_trace_dbg_level,
+ acpi_gbl_trace_dbg_layer,
+ saved_flags);
- result = -EINVAL;
-exit:
- return result;
+ return 0;
+}
+
+static int param_get_trace_method_name(char *buffer, const struct kernel_param *kp)
+{
+ return scnprintf(buffer, PAGE_SIZE, "%s", acpi_gbl_trace_method_name);
+}
+
+static const struct kernel_param_ops param_ops_trace_method = {
+ .set = param_set_trace_method_name,
+ .get = param_get_trace_method_name,
+};
+
+static const struct kernel_param_ops param_ops_trace_attrib = {
+ .set = param_set_uint,
+ .get = param_get_uint,
+};
+
+module_param_cb(trace_method_name, ¶m_ops_trace_method, &trace_method_name, 0644);
+module_param_cb(trace_debug_layer, ¶m_ops_trace_attrib, &acpi_gbl_trace_dbg_layer, 0644);
+module_param_cb(trace_debug_level, ¶m_ops_trace_attrib, &acpi_gbl_trace_dbg_level, 0644);
+
+static int param_set_trace_state(const char *val, struct kernel_param *kp)
+{
+ acpi_status status;
+ const char *method = trace_method_name;
+ u32 flags = 0;
+
+/* So "xxx-once" comparison should go prior than "xxx" comparison */
+#define acpi_compare_param(val, key) \
+ strncmp((val), (key), sizeof(key) - 1)
+
+ if (!acpi_compare_param(val, "enable")) {
+ method = NULL;
+ flags = ACPI_TRACE_ENABLED;
+ } else if (!acpi_compare_param(val, "disable"))
+ method = NULL;
+ else if (!acpi_compare_param(val, "method-once"))
+ flags = ACPI_TRACE_ENABLED | ACPI_TRACE_ONESHOT;
+ else if (!acpi_compare_param(val, "method"))
+ flags = ACPI_TRACE_ENABLED;
+ else if (!acpi_compare_param(val, "opcode-once"))
+ flags = ACPI_TRACE_ENABLED | ACPI_TRACE_ONESHOT | ACPI_TRACE_OPCODE;
+ else if (!acpi_compare_param(val, "opcode"))
+ flags = ACPI_TRACE_ENABLED | ACPI_TRACE_OPCODE;
+ else
+ return -EINVAL;
+
+ status = acpi_debug_trace(method,
+ acpi_gbl_trace_dbg_level,
+ acpi_gbl_trace_dbg_layer,
+ flags);
+ if (ACPI_FAILURE(status))
+ return -EBUSY;
+
+ return 0;
}
static int param_get_trace_state(char *buffer, struct kernel_param *kp)
{
- if (!acpi_gbl_trace_method_name)
+ if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED))
return sprintf(buffer, "disable");
else {
- if (acpi_gbl_trace_flags & 1)
- return sprintf(buffer, "1");
- else
+ if (acpi_gbl_trace_method_name) {
+ if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT)
+ return sprintf(buffer, "method-once");
+ else
+ return sprintf(buffer, "method");
+ } else
return sprintf(buffer, "enable");
}
return 0;
--
1.7.10
--
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| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:10 +0200 |
| Subject | [PATCH 1/4] ACPI / sysfs: Add ACPI_LV_REPAIR debug level. |
| Message-ID | <pPgVB-5hq-19@gated-at.bofh.it> |
| In reply to | #1190604 |
This patch updates debug_level file, adding ACPI_LV_REPAIR.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
---
drivers/acpi/sysfs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 0876d77b..7ab6ba4 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -69,6 +69,7 @@ static const struct acpi_dlevel acpi_debug_levels[] = {
ACPI_DEBUG_INIT(ACPI_LV_INIT),
ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
ACPI_DEBUG_INIT(ACPI_LV_INFO),
+ ACPI_DEBUG_INIT(ACPI_LV_REPAIR),
ACPI_DEBUG_INIT(ACPI_LV_INIT_NAMES),
ACPI_DEBUG_INIT(ACPI_LV_PARSE),
--
1.7.10
--
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| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:10 +0200 |
| Subject | [PATCH 4/4] ACPI / sysfs: Add support to allow leading "\" missing in trace_method_name. |
| Message-ID | <pPgVB-5hq-21@gated-at.bofh.it> |
| In reply to | #1190604 |
Since _SB.PCI0 can be used as relative path from root and can be easily
converted into internal trace_method_name format, we allow users to specify
trace_method_name using relative paths from root.
Note this is useful for grub2 for which users failed to pass "\" from the
grub configuration file.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
---
drivers/acpi/sysfs.c | 28 +++++++++++++---------------
1 file changed, 13 insertions(+), 15 deletions(-)
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 8979e4a..40a4265 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -164,14 +164,18 @@ static const struct kernel_param_ops param_ops_debug_level = {
module_param_cb(debug_layer, ¶m_ops_debug_layer, &acpi_dbg_layer, 0644);
module_param_cb(debug_level, ¶m_ops_debug_level, &acpi_dbg_level, 0644);
-static char* trace_method_name;
-static bool trace_method_kmalloced;
+static char trace_method_name[1024];
int param_set_trace_method_name(const char *val, const struct kernel_param *kp)
{
u32 saved_flags = 0;
+ bool is_abs_path = true;
- if (strlen(val) > 1024) {
+ if (*val != '\\')
+ is_abs_path = false;
+
+ if ((is_abs_path && strlen(val) > 1023) ||
+ (!is_abs_path && strlen(val) > 1022)) {
pr_err("%s: string parameter too long\n", kp->name);
return -ENOSPC;
}
@@ -187,19 +191,13 @@ int param_set_trace_method_name(const char *val, const struct kernel_param *kp)
acpi_gbl_trace_dbg_layer,
0);
- if (trace_method_kmalloced)
- kfree(trace_method_name);
- trace_method_name = NULL;
- trace_method_kmalloced = false;
-
/* This is a hack. We can't kmalloc in early boot. */
- if (slab_is_available()) {
- trace_method_name = kstrdup(val, GFP_KERNEL);
- if (!trace_method_name)
- return -ENOMEM;
- trace_method_kmalloced = true;
- } else
- trace_method_name = (char *)val;
+ if (is_abs_path)
+ strcpy(trace_method_name, val);
+ else {
+ trace_method_name[0] = '\\';
+ strcpy(trace_method_name+1, val);
+ }
/* Restore the original tracer state */
(void)acpi_debug_trace(trace_method_name,
--
1.7.10
--
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| From | Lv Zheng <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-23 07:10 +0200 |
| Subject | [PATCH 0/4] ACPI: Update method tracing facility. |
| Message-ID | <pPgVB-5hq-13@gated-at.bofh.it> |
| In reply to | #1190604 |
This patch updates method tracing facility according to ACPICA 20150717
release changes.
Lv Zheng (4):
ACPI / sysfs: Add ACPI_LV_REPAIR debug level.
ACPI / sysfs: Update method tracing facility.
ACPI / Documentation: Update method tracing documentation.
ACPI / sysfs: Add support to allow suppress leading "\" in
trace_method_name.
Documentation/acpi/method-tracing.txt | 53 +++++++++----
drivers/acpi/osl.c | 8 ++
drivers/acpi/sysfs.c | 133 ++++++++++++++++++++++++---------
3 files changed, 145 insertions(+), 49 deletions(-)
--
1.7.10
--
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[toc] | [prev] | [next] | [standalone]
| From | "Zheng, Lv" <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-24 04:10 +0200 |
| Subject | RE: [PATCH 0/4] ACPI: Update method tracing facility. |
| Message-ID | <pPAAX-8ws-37@gated-at.bofh.it> |
| In reply to | #1190616 |
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[toc] | [prev] | [next] | [standalone]
| From | "Zheng, Lv" <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-27 02:50 +0200 |
| Subject | RE: [PATCH 0/4] ACPI: Update method tracing facility. |
| Message-ID | <pQEMa-2uk-9@gated-at.bofh.it> |
| In reply to | #1191450 |
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| From | "Rafael J. Wysocki" <rjw@rjwysocki.net> |
|---|---|
| Date | 2015-07-29 02:40 +0200 |
| Message-ID | <pRnzA-qS-5@gated-at.bofh.it> |
| In reply to | #1190604 |
On Thursday, July 23, 2015 12:51:58 PM Lv Zheng wrote: > The 20150717 ACPICA kernel-resident subsystem updates are linuxized based > on the linux-pm/linux-next branch. > > The patchset has passed the following build/boot tests. > Build tests are performed as follows: > 1. i386 + default + COFNIG_ACPI=y > 2. i386 + allyes + CONFIG_ACPI=y > 3. i386 + default + COFNIG_ACPI=n > 4. i386 + allyes + CONFIG_ACPI=n > 5. x86_64 + default + COFNIG_ACPI=y > 6. x86_64 + allyes + CONFIG_ACPI=y > 7. x86_64 + default + COFNIG_ACPI=n > 8. x86_64 + allyes + CONFIG_ACPI=n > Boot tests are performed as follows: > 1. i386 + default + COFNIG_ACPI=y > 2. x86_64 + default + COFNIG_ACPI=y > Where: > 1. i386: machine named as "Dell Inspiron Mini 1010" > 2. x86_64: machine named as "HP Compaq 8200 Elite SFF PC" > 3. default: kernel configuration with following items enabled: > All hardware drivers related to the machines of i386/x86_64 > All "drivers/acpi" configurations > All "drivers/platform" drivers > All other drivers that link the APIs provided by ACPICA subsystem > > The divergences checking result: > Before applying (20150619 Release): > 539 lines > After applying (20150717 Release): > 518 lines > Note that the reduction is due to: > 1. The FACS related divergences are not counted; > 2. Some debugger related divergences are merged in this release as the > configurability of the debugger code has improved. > > Bob Moore (6): > ACPICA: iASL: Add new warnings for method local_x and arg_x > variables. > ACPICA: Cleanup use of all non-ANSI local C library functions. > ACPICA: Cleanup use of NEGATIVE and POSITIVE defines. > ACPICA: iASL: Add support for TCPA Server Table. > ACPICA: iASL/Disassembler: Add prototype verbose mode. > ACPICA: Update version to 20150717. > > Lv Zheng (15): > ACPICA: Parser: Reduce parser/namespace divergences for tracer > support. > ACPICA: Parser: Cleanup aml_offset in struct acpi_walk_state. > ACPICA: Parser: Cleanup aml_offset in union acpi_operand_object. > ACPICA: Dispatcher: Cleanup union acpi_operand_object's AML address > assignments. > ACPICA: Executer: Add back pointing reference of method operand. > ACPICA: Namespace: Add function to directly return normalized full > path. > ACPICA: Dispatcher: Move stack traversal code to dispatcher. > ACPICA: Dispatcher: Add trace support for interpreter. > ACPICA: Executer: Add interpreter tracing mode for method tracing > facility. > ACPICA: Executer: Add OSL trace hook support. > ACPICA: Executer: Add option to bypass opcode tracing. > ACPICA: Parser: Remove redundant opcode execution debugging output. > ACPICA: MSVC: Fix inclusion order issue of <crtdbg.h>. > ACPICA: Debugger: Reduce structure size for debugger. > ACPICA: Debugger: Move debugger specific APIs to debugger component. > > Markus Elfring (1): > ACPICA: Remove extraneous check for null walk_state. Series queued up for 4.3, thanks! Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | "Zheng, Lv" <lv.zheng@intel.com> |
|---|---|
| Date | 2015-07-29 03:50 +0200 |
| Message-ID | <pRoFj-1X0-1@gated-at.bofh.it> |
| In reply to | #1194743 |
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