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linux/drivers/acpi/namespace/nsdump.c
Bob Moore b229cf92ee ACPI: ACPICA 20060421 
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)

Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)

Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.

Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)

Defined and deployed a new OSL interface,
acpi_os_validate_address().  This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)

Defined and deployed a new OSL interface,
acpi_os_validate_interface().  This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)

Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)

Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.

The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-14 02:30:55 -04:00

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/******************************************************************************
*
* Module Name: nsdump - table dumping routines for debug
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <acpi/acpi.h>
#include <acpi/acnamesp.h>
#include <acpi/acparser.h>
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsdump")
/* Local prototypes */
#ifdef ACPI_OBSOLETE_FUNCTIONS
void acpi_ns_dump_root_devices(void);
static acpi_status
acpi_ns_dump_one_device(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
#endif
#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
/*******************************************************************************
*
* FUNCTION: acpi_ns_print_pathname
*
* PARAMETERS: num_segments - Number of ACPI name segments
* Pathname - The compressed (internal) path
*
* RETURN: None
*
* DESCRIPTION: Print an object's full namespace pathname
*
******************************************************************************/
void acpi_ns_print_pathname(u32 num_segments, char *pathname)
{
acpi_native_uint i;
ACPI_FUNCTION_NAME(ns_print_pathname);
if (!(acpi_dbg_level & ACPI_LV_NAMES)
|| !(acpi_dbg_layer & ACPI_NAMESPACE)) {
return;
}
/* Print the entire name */
ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
while (num_segments) {
for (i = 0; i < 4; i++) {
ACPI_IS_PRINT(pathname[i]) ?
acpi_os_printf("%c", pathname[i]) :
acpi_os_printf("?");
}
pathname += ACPI_NAME_SIZE;
num_segments--;
if (num_segments) {
acpi_os_printf(".");
}
}
acpi_os_printf("]\n");
}
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_pathname
*
* PARAMETERS: Handle - Object
* Msg - Prefix message
* Level - Desired debug level
* Component - Caller's component ID
*
* RETURN: None
*
* DESCRIPTION: Print an object's full namespace pathname
* Manages allocation/freeing of a pathname buffer
*
******************************************************************************/
void
acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
{
ACPI_FUNCTION_TRACE(ns_dump_pathname);
/* Do this only if the requested debug level and component are enabled */
if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) {
return_VOID;
}
/* Convert handle to a full pathname and print it (with supplied message) */
acpi_ns_print_node_pathname(handle, msg);
acpi_os_printf("\n");
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_one_object
*
* PARAMETERS: obj_handle - Node to be dumped
* Level - Nesting level of the handle
* Context - Passed into walk_namespace
* return_value - Not used
*
* RETURN: Status
*
* DESCRIPTION: Dump a single Node
* This procedure is a user_function called by acpi_ns_walk_namespace.
*
******************************************************************************/
acpi_status
acpi_ns_dump_one_object(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
struct acpi_walk_info *info = (struct acpi_walk_info *)context;
struct acpi_namespace_node *this_node;
union acpi_operand_object *obj_desc = NULL;
acpi_object_type obj_type;
acpi_object_type type;
u32 bytes_to_dump;
u32 dbg_level;
u32 i;
ACPI_FUNCTION_NAME(ns_dump_one_object);
/* Is output enabled? */
if (!(acpi_dbg_level & info->debug_level)) {
return (AE_OK);
}
if (!obj_handle) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
return (AE_OK);
}
this_node = acpi_ns_map_handle_to_node(obj_handle);
type = this_node->type;
/* Check if the owner matches */
if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
(info->owner_id != this_node->owner_id)) {
return (AE_OK);
}
if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
/* Indent the object according to the level */
acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
/* Check the node type and name */
if (type > ACPI_TYPE_LOCAL_MAX) {
ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X",
type));
}
if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
this_node->name.integer =
acpi_ut_repair_name(this_node->name.integer);
ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
this_node->name.integer));
}
acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
}
/*
* Now we can print out the pertinent information
*/
acpi_os_printf(" %-12s %p %2.2X ",
acpi_ut_get_type_name(type), this_node,
this_node->owner_id);
dbg_level = acpi_dbg_level;
acpi_dbg_level = 0;
obj_desc = acpi_ns_get_attached_object(this_node);
acpi_dbg_level = dbg_level;
switch (info->display_type & ACPI_DISPLAY_MASK) {
case ACPI_DISPLAY_SUMMARY:
if (!obj_desc) {
/* No attached object, we are done */
acpi_os_printf("\n");
return (AE_OK);
}
switch (type) {
case ACPI_TYPE_PROCESSOR:
acpi_os_printf("ID %X Len %.4X Addr %p\n",
obj_desc->processor.proc_id,
obj_desc->processor.length,
(char *)obj_desc->processor.address);
break;
case ACPI_TYPE_DEVICE:
acpi_os_printf("Notify Object: %p\n", obj_desc);
break;
case ACPI_TYPE_METHOD:
acpi_os_printf("Args %X Len %.4X Aml %p\n",
(u32) obj_desc->method.param_count,
obj_desc->method.aml_length,
obj_desc->method.aml_start);
break;
case ACPI_TYPE_INTEGER:
acpi_os_printf("= %8.8X%8.8X\n",
ACPI_FORMAT_UINT64(obj_desc->integer.
value));
break;
case ACPI_TYPE_PACKAGE:
if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
acpi_os_printf("Elements %.2X\n",
obj_desc->package.count);
} else {
acpi_os_printf("[Length not yet evaluated]\n");
}
break;
case ACPI_TYPE_BUFFER:
if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
acpi_os_printf("Len %.2X",
obj_desc->buffer.length);
/* Dump some of the buffer */
if (obj_desc->buffer.length > 0) {
acpi_os_printf(" =");
for (i = 0;
(i < obj_desc->buffer.length
&& i < 12); i++) {
acpi_os_printf(" %.2hX",
obj_desc->buffer.
pointer[i]);
}
}
acpi_os_printf("\n");
} else {
acpi_os_printf("[Length not yet evaluated]\n");
}
break;
case ACPI_TYPE_STRING:
acpi_os_printf("Len %.2X ", obj_desc->string.length);
acpi_ut_print_string(obj_desc->string.pointer, 32);
acpi_os_printf("\n");
break;
case ACPI_TYPE_REGION:
acpi_os_printf("[%s]",
acpi_ut_get_region_name(obj_desc->region.
space_id));
if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
ACPI_FORMAT_UINT64(obj_desc->
region.
address),
obj_desc->region.length);
} else {
acpi_os_printf
(" [Address/Length not yet evaluated]\n");
}
break;
case ACPI_TYPE_LOCAL_REFERENCE:
acpi_os_printf("[%s]\n",
acpi_ps_get_opcode_name(obj_desc->
reference.
opcode));
break;
case ACPI_TYPE_BUFFER_FIELD:
if (obj_desc->buffer_field.buffer_obj &&
obj_desc->buffer_field.buffer_obj->buffer.node) {
acpi_os_printf("Buf [%4.4s]",
acpi_ut_get_node_name(obj_desc->
buffer_field.
buffer_obj->
buffer.
node));
}
break;
case ACPI_TYPE_LOCAL_REGION_FIELD:
acpi_os_printf("Rgn [%4.4s]",
acpi_ut_get_node_name(obj_desc->
common_field.
region_obj->region.
node));
break;
case ACPI_TYPE_LOCAL_BANK_FIELD:
acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
acpi_ut_get_node_name(obj_desc->
common_field.
region_obj->region.
node),
acpi_ut_get_node_name(obj_desc->
bank_field.
bank_obj->
common_field.
node));
break;
case ACPI_TYPE_LOCAL_INDEX_FIELD:
acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
acpi_ut_get_node_name(obj_desc->
index_field.
index_obj->
common_field.node),
acpi_ut_get_node_name(obj_desc->
index_field.
data_obj->
common_field.
node));
break;
case ACPI_TYPE_LOCAL_ALIAS:
case ACPI_TYPE_LOCAL_METHOD_ALIAS:
acpi_os_printf("Target %4.4s (%p)\n",
acpi_ut_get_node_name(obj_desc),
obj_desc);
break;
default:
acpi_os_printf("Object %p\n", obj_desc);
break;
}
/* Common field handling */
switch (type) {
case ACPI_TYPE_BUFFER_FIELD:
case ACPI_TYPE_LOCAL_REGION_FIELD:
case ACPI_TYPE_LOCAL_BANK_FIELD:
case ACPI_TYPE_LOCAL_INDEX_FIELD:
acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
(obj_desc->common_field.
base_byte_offset * 8)
+
obj_desc->common_field.
start_field_bit_offset,
obj_desc->common_field.bit_length,
obj_desc->common_field.
access_byte_width);
break;
default:
break;
}
break;
case ACPI_DISPLAY_OBJECTS:
acpi_os_printf("O:%p", obj_desc);
if (!obj_desc) {
/* No attached object, we are done */
acpi_os_printf("\n");
return (AE_OK);
}
acpi_os_printf("(R%d)", obj_desc->common.reference_count);
switch (type) {
case ACPI_TYPE_METHOD:
/* Name is a Method and its AML offset/length are set */
acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
obj_desc->method.aml_length);
break;
case ACPI_TYPE_INTEGER:
acpi_os_printf(" I:%8.8X8.8%X\n",
ACPI_FORMAT_UINT64(obj_desc->integer.
value));
break;
case ACPI_TYPE_STRING:
acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
obj_desc->string.length);
break;
case ACPI_TYPE_BUFFER:
acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
obj_desc->buffer.length);
break;
default:
acpi_os_printf("\n");
break;
}
break;
default:
acpi_os_printf("\n");
break;
}
/* If debug turned off, done */
if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
return (AE_OK);
}
/* If there is an attached object, display it */
dbg_level = acpi_dbg_level;
acpi_dbg_level = 0;
obj_desc = acpi_ns_get_attached_object(this_node);
acpi_dbg_level = dbg_level;
/* Dump attached objects */
while (obj_desc) {
obj_type = ACPI_TYPE_INVALID;
acpi_os_printf("Attached Object %p: ", obj_desc);
/* Decode the type of attached object and dump the contents */
switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
case ACPI_DESC_TYPE_NAMED:
acpi_os_printf("(Ptr to Node)\n");
bytes_to_dump = sizeof(struct acpi_namespace_node);
ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
break;
case ACPI_DESC_TYPE_OPERAND:
obj_type = ACPI_GET_OBJECT_TYPE(obj_desc);
if (obj_type > ACPI_TYPE_LOCAL_MAX) {
acpi_os_printf
("(Ptr to ACPI Object type %X [UNKNOWN])\n",
obj_type);
bytes_to_dump = 32;
} else {
acpi_os_printf
("(Ptr to ACPI Object type %X [%s])\n",
obj_type, acpi_ut_get_type_name(obj_type));
bytes_to_dump =
sizeof(union acpi_operand_object);
}
ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
break;
default:
break;
}
/* If value is NOT an internal object, we are done */
if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
ACPI_DESC_TYPE_OPERAND) {
goto cleanup;
}
/*
* Valid object, get the pointer to next level, if any
*/
switch (obj_type) {
case ACPI_TYPE_BUFFER:
case ACPI_TYPE_STRING:
/*
* NOTE: takes advantage of common fields between string/buffer
*/
bytes_to_dump = obj_desc->string.length;
obj_desc = (void *)obj_desc->string.pointer;
acpi_os_printf("(Buffer/String pointer %p length %X)\n",
obj_desc, bytes_to_dump);
ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
goto cleanup;
case ACPI_TYPE_BUFFER_FIELD:
obj_desc =
(union acpi_operand_object *)obj_desc->buffer_field.
buffer_obj;
break;
case ACPI_TYPE_PACKAGE:
obj_desc = (void *)obj_desc->package.elements;
break;
case ACPI_TYPE_METHOD:
obj_desc = (void *)obj_desc->method.aml_start;
break;
case ACPI_TYPE_LOCAL_REGION_FIELD:
obj_desc = (void *)obj_desc->field.region_obj;
break;
case ACPI_TYPE_LOCAL_BANK_FIELD:
obj_desc = (void *)obj_desc->bank_field.region_obj;
break;
case ACPI_TYPE_LOCAL_INDEX_FIELD:
obj_desc = (void *)obj_desc->index_field.index_obj;
break;
default:
goto cleanup;
}
obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */
}
cleanup:
acpi_os_printf("\n");
return (AE_OK);
}
#ifdef ACPI_FUTURE_USAGE
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_objects
*
* PARAMETERS: Type - Object type to be dumped
* display_type - 0 or ACPI_DISPLAY_SUMMARY
* max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
* for an effectively unlimited depth.
* owner_id - Dump only objects owned by this ID. Use
* ACPI_UINT32_MAX to match all owners.
* start_handle - Where in namespace to start/end search
*
* RETURN: None
*
* DESCRIPTION: Dump typed objects within the loaded namespace.
* Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
*
******************************************************************************/
void
acpi_ns_dump_objects(acpi_object_type type,
u8 display_type,
u32 max_depth,
acpi_owner_id owner_id, acpi_handle start_handle)
{
struct acpi_walk_info info;
ACPI_FUNCTION_ENTRY();
info.debug_level = ACPI_LV_TABLES;
info.owner_id = owner_id;
info.display_type = display_type;
(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
ACPI_NS_WALK_NO_UNLOCK,
acpi_ns_dump_one_object, (void *)&info,
NULL);
}
#endif /* ACPI_FUTURE_USAGE */
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_entry
*
* PARAMETERS: Handle - Node to be dumped
* debug_level - Output level
*
* RETURN: None
*
* DESCRIPTION: Dump a single Node
*
******************************************************************************/
void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
{
struct acpi_walk_info info;
ACPI_FUNCTION_ENTRY();
info.debug_level = debug_level;
info.owner_id = ACPI_OWNER_ID_MAX;
info.display_type = ACPI_DISPLAY_SUMMARY;
(void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
}
#ifdef ACPI_ASL_COMPILER
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_tables
*
* PARAMETERS: search_base - Root of subtree to be dumped, or
* NS_ALL to dump the entire namespace
* max_depth - Maximum depth of dump. Use INT_MAX
* for an effectively unlimited depth.
*
* RETURN: None
*
* DESCRIPTION: Dump the name space, or a portion of it.
*
******************************************************************************/
void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
{
acpi_handle search_handle = search_base;
ACPI_FUNCTION_TRACE(ns_dump_tables);
if (!acpi_gbl_root_node) {
/*
* If the name space has not been initialized,
* there is nothing to dump.
*/
ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
"namespace not initialized!\n"));
return_VOID;
}
if (ACPI_NS_ALL == search_base) {
/* Entire namespace */
search_handle = acpi_gbl_root_node;
ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
}
acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
ACPI_OWNER_ID_MAX, search_handle);
return_VOID;
}
#endif /* _ACPI_ASL_COMPILER */
#endif /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */
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