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ACPICA: debugger: add command to dump all fields of particular subtype

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In acpiexec, this can be invoked by typing "fields" followed by a
number representing the address space ID of that field.

Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Erik Schmauss 2019-10-25 14:36:55 -07:00 committed by Rafael J. Wysocki
parent efcf9456c8
commit 5fd033288a
4 changed files with 141 additions and 0 deletions
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2
drivers/acpi/acpica/acdebug.h
View File

@ -148,6 +148,8 @@ void acpi_db_find_references(char *object_arg);
void acpi_db_get_bus_info(void);
acpi_status acpi_db_display_fields(u32 address_space_id);
/*
* dbdisply - debug display commands
*/

10
drivers/acpi/acpica/acstruct.h
View File

@ -192,6 +192,16 @@ struct acpi_device_walk_info {
u32 num_INI;
};
/* Info used by Acpi acpi_db_display_fields */
struct acpi_region_walk_info {
u32 debug_level;
u32 count;
acpi_owner_id owner_id;
u8 display_type;
u32 address_space_id;
};
/* TBD: [Restructure] Merge with struct above */
struct acpi_walk_info {

20
drivers/acpi/acpica/dbinput.c
View File

@ -50,6 +50,7 @@ enum acpi_ex_debugger_commands {
CMD_EVALUATE,
CMD_EXECUTE,
CMD_EXIT,
CMD_FIELDS,
CMD_FIND,
CMD_GO,
CMD_HANDLERS,
@ -127,6 +128,7 @@ static const struct acpi_db_command_info acpi_gbl_db_commands[] = {
{"EVALUATE", 1},
{"EXECUTE", 1},
{"EXIT", 0},
{"FIELDS", 1},
{"FIND", 1},
{"GO", 0},
{"HANDLERS", 0},
@ -200,6 +202,8 @@ static const struct acpi_db_command_help acpi_gbl_db_command_help[] = {
"Find ACPI name(s) with wildcards\n"},
{1, " Integrity", "Validate namespace integrity\n"},
{1, " Methods", "Display list of loaded control methods\n"},
{1, " Fields <AddressSpaceId>",
"Display list of loaded field units by space ID\n"},
{1, " Namespace [Object] [Depth]",
"Display loaded namespace tree/subtree\n"},
{1, " Notify <Object> <Value>", "Send a notification on Object\n"},
@ -674,6 +678,7 @@ acpi_db_command_dispatch(char *input_buffer,
union acpi_parse_object *op)
{
u32 temp;
u64 temp64;
u32 command_index;
u32 param_count;
char *command_line;
@ -789,6 +794,21 @@ acpi_db_command_dispatch(char *input_buffer,
status = acpi_db_find_name_in_namespace(acpi_gbl_db_args[1]);
break;
case CMD_FIELDS:
status = acpi_ut_strtoul64(acpi_gbl_db_args[1], &temp64);
if (ACPI_FAILURE(status)
|| temp64 >= ACPI_NUM_PREDEFINED_REGIONS) {
acpi_os_printf
("Invalid adress space ID: must be between 0 and %u inclusive\n",
ACPI_NUM_PREDEFINED_REGIONS - 1);
return (AE_OK);
}
status = acpi_db_display_fields((u32)temp64);
break;
case CMD_GO:
acpi_gbl_cm_single_step = FALSE;

109
drivers/acpi/acpica/dbnames.c
View File

@ -10,6 +10,7 @@
#include "acnamesp.h"
#include "acdebug.h"
#include "acpredef.h"
#include "acinterp.h"
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME("dbnames")
@ -502,6 +503,81 @@ acpi_db_walk_for_object_counts(acpi_handle obj_handle,
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_walk_for_fields
*
* PARAMETERS: Callback from walk_namespace
*
* RETURN: Status
*
* DESCRIPTION: Display short info about objects in the namespace
*
******************************************************************************/
static acpi_status
acpi_db_walk_for_fields(acpi_handle obj_handle,
u32 nesting_level, void *context, void **return_value)
{
union acpi_object *ret_value;
struct acpi_region_walk_info *info =
(struct acpi_region_walk_info *)context;
struct acpi_buffer buffer;
acpi_status status;
struct acpi_namespace_node *node = acpi_ns_validate_handle(obj_handle);
if (!node) {
return (AE_OK);
}
if (node->object->field.region_obj->region.space_id !=
info->address_space_id) {
return (AE_OK);
}
info->count++;
/* Get and display the full pathname to this object */
buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE);
if (ACPI_FAILURE(status)) {
acpi_os_printf("Could Not get pathname for object %p\n",
obj_handle);
return (AE_OK);
}
acpi_os_printf("%s ", (char *)buffer.pointer);
ACPI_FREE(buffer.pointer);
buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
acpi_evaluate_object(obj_handle, NULL, NULL, &buffer);
ret_value = (union acpi_object *)buffer.pointer;
switch (ret_value->type) {
case ACPI_TYPE_INTEGER:
acpi_os_printf("%8.8X%8.8X",
ACPI_FORMAT_UINT64(ret_value->integer.value));
break;
case ACPI_TYPE_BUFFER:
acpi_ut_dump_buffer(ret_value->buffer.pointer,
ret_value->buffer.length,
DB_DISPLAY_DATA_ONLY | DB_BYTE_DISPLAY, 0);
break;
default:
break;
}
acpi_os_printf("\n");
ACPI_FREE(buffer.pointer);
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_walk_for_specific_objects
@ -628,6 +704,39 @@ acpi_status acpi_db_display_objects(char *obj_type_arg, char *display_count_arg)
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_display_fields
*
* PARAMETERS: obj_type_arg - Type of object to display
* display_count_arg - Max depth to display
*
* RETURN: None
*
* DESCRIPTION: Display objects in the namespace of the requested type
*
******************************************************************************/
acpi_status acpi_db_display_fields(u32 address_space_id)
{
struct acpi_region_walk_info info;
info.count = 0;
info.owner_id = ACPI_OWNER_ID_MAX;
info.debug_level = ACPI_UINT32_MAX;
info.display_type = ACPI_DISPLAY_SUMMARY | ACPI_DISPLAY_SHORT;
info.address_space_id = address_space_id;
/* Walk the namespace from the root */
(void)acpi_walk_namespace(ACPI_TYPE_LOCAL_REGION_FIELD,
ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
acpi_db_walk_for_fields, NULL, (void *)&info,
NULL);
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_db_integrity_walk