mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 06:10:51 +07:00
da6f8320d5
including tool signons. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
808 lines
23 KiB
C
808 lines
23 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: dsfield - Dispatcher field routines
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2018, Intel Corp.
|
|
* 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 "accommon.h"
|
|
#include "amlcode.h"
|
|
#include "acdispat.h"
|
|
#include "acinterp.h"
|
|
#include "acnamesp.h"
|
|
#include "acparser.h"
|
|
|
|
#define _COMPONENT ACPI_DISPATCHER
|
|
ACPI_MODULE_NAME("dsfield")
|
|
|
|
/* Local prototypes */
|
|
#ifdef ACPI_ASL_COMPILER
|
|
#include "acdisasm.h"
|
|
static acpi_status
|
|
acpi_ds_create_external_region(acpi_status lookup_status,
|
|
union acpi_parse_object *op,
|
|
char *path,
|
|
struct acpi_walk_state *walk_state,
|
|
struct acpi_namespace_node **node);
|
|
#endif
|
|
|
|
static acpi_status
|
|
acpi_ds_get_field_names(struct acpi_create_field_info *info,
|
|
struct acpi_walk_state *walk_state,
|
|
union acpi_parse_object *arg);
|
|
|
|
#ifdef ACPI_ASL_COMPILER
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_create_external_region (iASL Disassembler only)
|
|
*
|
|
* PARAMETERS: lookup_status - Status from ns_lookup operation
|
|
* op - Op containing the Field definition and args
|
|
* path - Pathname of the region
|
|
* ` walk_state - Current method state
|
|
* node - Where the new region node is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Add region to the external list if NOT_FOUND. Create a new
|
|
* region node/object.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ds_create_external_region(acpi_status lookup_status,
|
|
union acpi_parse_object *op,
|
|
char *path,
|
|
struct acpi_walk_state *walk_state,
|
|
struct acpi_namespace_node **node)
|
|
{
|
|
acpi_status status;
|
|
union acpi_operand_object *obj_desc;
|
|
|
|
if (lookup_status != AE_NOT_FOUND) {
|
|
return (lookup_status);
|
|
}
|
|
|
|
/*
|
|
* Table disassembly:
|
|
* operation_region not found. Generate an External for it, and
|
|
* insert the name into the namespace.
|
|
*/
|
|
acpi_dm_add_op_to_external_list(op, path, ACPI_TYPE_REGION, 0, 0);
|
|
|
|
status = acpi_ns_lookup(walk_state->scope_info, path, ACPI_TYPE_REGION,
|
|
ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT,
|
|
walk_state, node);
|
|
if (ACPI_FAILURE(status)) {
|
|
return (status);
|
|
}
|
|
|
|
/* Must create and install a region object for the new node */
|
|
|
|
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION);
|
|
if (!obj_desc) {
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
obj_desc->region.node = *node;
|
|
status = acpi_ns_attach_object(*node, obj_desc, ACPI_TYPE_REGION);
|
|
return (status);
|
|
}
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_create_buffer_field
|
|
*
|
|
* PARAMETERS: op - Current parse op (create_XXField)
|
|
* walk_state - Current state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Execute the create_field operators:
|
|
* create_bit_field_op,
|
|
* create_byte_field_op,
|
|
* create_word_field_op,
|
|
* create_dword_field_op,
|
|
* create_qword_field_op,
|
|
* create_field_op (all of which define a field in a buffer)
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ds_create_buffer_field(union acpi_parse_object *op,
|
|
struct acpi_walk_state *walk_state)
|
|
{
|
|
union acpi_parse_object *arg;
|
|
struct acpi_namespace_node *node;
|
|
acpi_status status;
|
|
union acpi_operand_object *obj_desc;
|
|
union acpi_operand_object *second_desc = NULL;
|
|
u32 flags;
|
|
|
|
ACPI_FUNCTION_TRACE(ds_create_buffer_field);
|
|
|
|
/*
|
|
* Get the name_string argument (name of the new buffer_field)
|
|
*/
|
|
if (op->common.aml_opcode == AML_CREATE_FIELD_OP) {
|
|
|
|
/* For create_field, name is the 4th argument */
|
|
|
|
arg = acpi_ps_get_arg(op, 3);
|
|
} else {
|
|
/* For all other create_XXXField operators, name is the 3rd argument */
|
|
|
|
arg = acpi_ps_get_arg(op, 2);
|
|
}
|
|
|
|
if (!arg) {
|
|
return_ACPI_STATUS(AE_AML_NO_OPERAND);
|
|
}
|
|
|
|
if (walk_state->deferred_node) {
|
|
node = walk_state->deferred_node;
|
|
status = AE_OK;
|
|
} else {
|
|
/* Execute flag should always be set when this function is entered */
|
|
|
|
if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) {
|
|
ACPI_ERROR((AE_INFO, "Parse execute mode is not set"));
|
|
return_ACPI_STATUS(AE_AML_INTERNAL);
|
|
}
|
|
|
|
/* Creating new namespace node, should not already exist */
|
|
|
|
flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
|
|
ACPI_NS_ERROR_IF_FOUND;
|
|
|
|
/*
|
|
* Mark node temporary if we are executing a normal control
|
|
* method. (Don't mark if this is a module-level code method)
|
|
*/
|
|
if (walk_state->method_node &&
|
|
!(walk_state->parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
|
|
flags |= ACPI_NS_TEMPORARY;
|
|
}
|
|
|
|
/* Enter the name_string into the namespace */
|
|
|
|
status = acpi_ns_lookup(walk_state->scope_info,
|
|
arg->common.value.string, ACPI_TYPE_ANY,
|
|
ACPI_IMODE_LOAD_PASS1, flags,
|
|
walk_state, &node);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
|
|
arg->common.value.string, status);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We could put the returned object (Node) on the object stack for later,
|
|
* but for now, we will put it in the "op" object that the parser uses,
|
|
* so we can get it again at the end of this scope.
|
|
*/
|
|
op->common.node = node;
|
|
|
|
/*
|
|
* If there is no object attached to the node, this node was just created
|
|
* and we need to create the field object. Otherwise, this was a lookup
|
|
* of an existing node and we don't want to create the field object again.
|
|
*/
|
|
obj_desc = acpi_ns_get_attached_object(node);
|
|
if (obj_desc) {
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*
|
|
* The Field definition is not fully parsed at this time.
|
|
* (We must save the address of the AML for the buffer and index operands)
|
|
*/
|
|
|
|
/* Create the buffer field object */
|
|
|
|
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER_FIELD);
|
|
if (!obj_desc) {
|
|
status = AE_NO_MEMORY;
|
|
goto cleanup;
|
|
}
|
|
|
|
/*
|
|
* Remember location in AML stream of the field unit opcode and operands
|
|
* -- since the buffer and index operands must be evaluated.
|
|
*/
|
|
second_desc = obj_desc->common.next_object;
|
|
second_desc->extra.aml_start = op->named.data;
|
|
second_desc->extra.aml_length = op->named.length;
|
|
obj_desc->buffer_field.node = node;
|
|
|
|
/* Attach constructed field descriptors to parent node */
|
|
|
|
status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_BUFFER_FIELD);
|
|
if (ACPI_FAILURE(status)) {
|
|
goto cleanup;
|
|
}
|
|
|
|
cleanup:
|
|
|
|
/* Remove local reference to the object */
|
|
|
|
acpi_ut_remove_reference(obj_desc);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_get_field_names
|
|
*
|
|
* PARAMETERS: info - create_field info structure
|
|
* ` walk_state - Current method state
|
|
* arg - First parser arg for the field name list
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Process all named fields in a field declaration. Names are
|
|
* entered into the namespace.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ds_get_field_names(struct acpi_create_field_info *info,
|
|
struct acpi_walk_state *walk_state,
|
|
union acpi_parse_object *arg)
|
|
{
|
|
acpi_status status;
|
|
u64 position;
|
|
union acpi_parse_object *child;
|
|
|
|
ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info);
|
|
|
|
/* First field starts at bit zero */
|
|
|
|
info->field_bit_position = 0;
|
|
|
|
/* Process all elements in the field list (of parse nodes) */
|
|
|
|
while (arg) {
|
|
/*
|
|
* Four types of field elements are handled:
|
|
* 1) name - Enters a new named field into the namespace
|
|
* 2) offset - specifies a bit offset
|
|
* 3) access_as - changes the access mode/attributes
|
|
* 4) connection - Associate a resource template with the field
|
|
*/
|
|
switch (arg->common.aml_opcode) {
|
|
case AML_INT_RESERVEDFIELD_OP:
|
|
|
|
position = (u64)info->field_bit_position +
|
|
(u64)arg->common.value.size;
|
|
|
|
if (position > ACPI_UINT32_MAX) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"Bit offset within field too large (> 0xFFFFFFFF)"));
|
|
return_ACPI_STATUS(AE_SUPPORT);
|
|
}
|
|
|
|
info->field_bit_position = (u32) position;
|
|
break;
|
|
|
|
case AML_INT_ACCESSFIELD_OP:
|
|
case AML_INT_EXTACCESSFIELD_OP:
|
|
/*
|
|
* Get new access_type, access_attribute, and access_length fields
|
|
* -- to be used for all field units that follow, until the
|
|
* end-of-field or another access_as keyword is encountered.
|
|
* NOTE. These three bytes are encoded in the integer value
|
|
* of the parseop for convenience.
|
|
*
|
|
* In field_flags, preserve the flag bits other than the
|
|
* ACCESS_TYPE bits.
|
|
*/
|
|
|
|
/* access_type (byte_acc, word_acc, etc.) */
|
|
|
|
info->field_flags = (u8)
|
|
((info->
|
|
field_flags & ~(AML_FIELD_ACCESS_TYPE_MASK)) |
|
|
((u8)((u32)(arg->common.value.integer & 0x07))));
|
|
|
|
/* access_attribute (attrib_quick, attrib_byte, etc.) */
|
|
|
|
info->attribute = (u8)
|
|
((arg->common.value.integer >> 8) & 0xFF);
|
|
|
|
/* access_length (for serial/buffer protocols) */
|
|
|
|
info->access_length = (u8)
|
|
((arg->common.value.integer >> 16) & 0xFF);
|
|
break;
|
|
|
|
case AML_INT_CONNECTION_OP:
|
|
/*
|
|
* Clear any previous connection. New connection is used for all
|
|
* fields that follow, similar to access_as
|
|
*/
|
|
info->resource_buffer = NULL;
|
|
info->connection_node = NULL;
|
|
info->pin_number_index = 0;
|
|
|
|
/*
|
|
* A Connection() is either an actual resource descriptor (buffer)
|
|
* or a named reference to a resource template
|
|
*/
|
|
child = arg->common.value.arg;
|
|
if (child->common.aml_opcode == AML_INT_BYTELIST_OP) {
|
|
info->resource_buffer = child->named.data;
|
|
info->resource_length =
|
|
(u16)child->named.value.integer;
|
|
} else {
|
|
/* Lookup the Connection() namepath, it should already exist */
|
|
|
|
status = acpi_ns_lookup(walk_state->scope_info,
|
|
child->common.value.
|
|
name, ACPI_TYPE_ANY,
|
|
ACPI_IMODE_EXECUTE,
|
|
ACPI_NS_DONT_OPEN_SCOPE,
|
|
walk_state,
|
|
&info->connection_node);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->
|
|
scope_info,
|
|
child->common.
|
|
value.name,
|
|
status);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case AML_INT_NAMEDFIELD_OP:
|
|
|
|
/* Lookup the name, it should already exist */
|
|
|
|
status = acpi_ns_lookup(walk_state->scope_info,
|
|
(char *)&arg->named.name,
|
|
info->field_type,
|
|
ACPI_IMODE_EXECUTE,
|
|
ACPI_NS_DONT_OPEN_SCOPE,
|
|
walk_state, &info->field_node);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
|
|
(char *)&arg->named.name,
|
|
status);
|
|
return_ACPI_STATUS(status);
|
|
} else {
|
|
arg->common.node = info->field_node;
|
|
info->field_bit_length = arg->common.value.size;
|
|
|
|
/*
|
|
* If there is no object attached to the node, this node was
|
|
* just created and we need to create the field object.
|
|
* Otherwise, this was a lookup of an existing node and we
|
|
* don't want to create the field object again.
|
|
*/
|
|
if (!acpi_ns_get_attached_object
|
|
(info->field_node)) {
|
|
status = acpi_ex_prep_field_value(info);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Keep track of bit position for the next field */
|
|
|
|
position = (u64)info->field_bit_position +
|
|
(u64)arg->common.value.size;
|
|
|
|
if (position > ACPI_UINT32_MAX) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"Field [%4.4s] bit offset too large (> 0xFFFFFFFF)",
|
|
ACPI_CAST_PTR(char,
|
|
&info->field_node->
|
|
name)));
|
|
return_ACPI_STATUS(AE_SUPPORT);
|
|
}
|
|
|
|
info->field_bit_position += info->field_bit_length;
|
|
info->pin_number_index++; /* Index relative to previous Connection() */
|
|
break;
|
|
|
|
default:
|
|
|
|
ACPI_ERROR((AE_INFO,
|
|
"Invalid opcode in field list: 0x%X",
|
|
arg->common.aml_opcode));
|
|
return_ACPI_STATUS(AE_AML_BAD_OPCODE);
|
|
}
|
|
|
|
arg = arg->common.next;
|
|
}
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_create_field
|
|
*
|
|
* PARAMETERS: op - Op containing the Field definition and args
|
|
* region_node - Object for the containing Operation Region
|
|
* ` walk_state - Current method state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create a new field in the specified operation region
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ds_create_field(union acpi_parse_object *op,
|
|
struct acpi_namespace_node *region_node,
|
|
struct acpi_walk_state *walk_state)
|
|
{
|
|
acpi_status status;
|
|
union acpi_parse_object *arg;
|
|
struct acpi_create_field_info info;
|
|
|
|
ACPI_FUNCTION_TRACE_PTR(ds_create_field, op);
|
|
|
|
/* First arg is the name of the parent op_region (must already exist) */
|
|
|
|
arg = op->common.value.arg;
|
|
|
|
if (!region_node) {
|
|
status =
|
|
acpi_ns_lookup(walk_state->scope_info,
|
|
arg->common.value.name, ACPI_TYPE_REGION,
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
|
|
walk_state, ®ion_node);
|
|
#ifdef ACPI_ASL_COMPILER
|
|
status = acpi_ds_create_external_region(status, arg,
|
|
arg->common.value.name,
|
|
walk_state,
|
|
®ion_node);
|
|
#endif
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
|
|
arg->common.value.name, status);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
}
|
|
|
|
memset(&info, 0, sizeof(struct acpi_create_field_info));
|
|
|
|
/* Second arg is the field flags */
|
|
|
|
arg = arg->common.next;
|
|
info.field_flags = (u8) arg->common.value.integer;
|
|
info.attribute = 0;
|
|
|
|
/* Each remaining arg is a Named Field */
|
|
|
|
info.field_type = ACPI_TYPE_LOCAL_REGION_FIELD;
|
|
info.region_node = region_node;
|
|
|
|
status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_init_field_objects
|
|
*
|
|
* PARAMETERS: op - Op containing the Field definition and args
|
|
* ` walk_state - Current method state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: For each "Field Unit" name in the argument list that is
|
|
* part of the field declaration, enter the name into the
|
|
* namespace.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ds_init_field_objects(union acpi_parse_object *op,
|
|
struct acpi_walk_state *walk_state)
|
|
{
|
|
acpi_status status;
|
|
union acpi_parse_object *arg = NULL;
|
|
struct acpi_namespace_node *node;
|
|
u8 type = 0;
|
|
u32 flags;
|
|
|
|
ACPI_FUNCTION_TRACE_PTR(ds_init_field_objects, op);
|
|
|
|
/* Execute flag should always be set when this function is entered */
|
|
|
|
if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) {
|
|
if (walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP) {
|
|
|
|
/* bank_field Op is deferred, just return OK */
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
ACPI_ERROR((AE_INFO, "Parse deferred mode is not set"));
|
|
return_ACPI_STATUS(AE_AML_INTERNAL);
|
|
}
|
|
|
|
/*
|
|
* Get the field_list argument for this opcode. This is the start of the
|
|
* list of field elements.
|
|
*/
|
|
switch (walk_state->opcode) {
|
|
case AML_FIELD_OP:
|
|
|
|
arg = acpi_ps_get_arg(op, 2);
|
|
type = ACPI_TYPE_LOCAL_REGION_FIELD;
|
|
break;
|
|
|
|
case AML_BANK_FIELD_OP:
|
|
|
|
arg = acpi_ps_get_arg(op, 4);
|
|
type = ACPI_TYPE_LOCAL_BANK_FIELD;
|
|
break;
|
|
|
|
case AML_INDEX_FIELD_OP:
|
|
|
|
arg = acpi_ps_get_arg(op, 3);
|
|
type = ACPI_TYPE_LOCAL_INDEX_FIELD;
|
|
break;
|
|
|
|
default:
|
|
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Creating new namespace node(s), should not already exist */
|
|
|
|
flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
|
|
ACPI_NS_ERROR_IF_FOUND;
|
|
|
|
/*
|
|
* Mark node(s) temporary if we are executing a normal control
|
|
* method. (Don't mark if this is a module-level code method)
|
|
*/
|
|
if (walk_state->method_node &&
|
|
!(walk_state->parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
|
|
flags |= ACPI_NS_TEMPORARY;
|
|
}
|
|
|
|
/*
|
|
* Walk the list of entries in the field_list
|
|
* Note: field_list can be of zero length. In this case, Arg will be NULL.
|
|
*/
|
|
while (arg) {
|
|
/*
|
|
* Ignore OFFSET/ACCESSAS/CONNECTION terms here; we are only interested
|
|
* in the field names in order to enter them into the namespace.
|
|
*/
|
|
if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
|
|
status = acpi_ns_lookup(walk_state->scope_info,
|
|
(char *)&arg->named.name, type,
|
|
ACPI_IMODE_LOAD_PASS1, flags,
|
|
walk_state, &node);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
|
|
(char *)&arg->named.name,
|
|
status);
|
|
if (status != AE_ALREADY_EXISTS) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Name already exists, just ignore this error */
|
|
|
|
status = AE_OK;
|
|
}
|
|
|
|
arg->common.node = node;
|
|
}
|
|
|
|
/* Get the next field element in the list */
|
|
|
|
arg = arg->common.next;
|
|
}
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_create_bank_field
|
|
*
|
|
* PARAMETERS: op - Op containing the Field definition and args
|
|
* region_node - Object for the containing Operation Region
|
|
* walk_state - Current method state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create a new bank field in the specified operation region
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ds_create_bank_field(union acpi_parse_object *op,
|
|
struct acpi_namespace_node *region_node,
|
|
struct acpi_walk_state *walk_state)
|
|
{
|
|
acpi_status status;
|
|
union acpi_parse_object *arg;
|
|
struct acpi_create_field_info info;
|
|
|
|
ACPI_FUNCTION_TRACE_PTR(ds_create_bank_field, op);
|
|
|
|
/* First arg is the name of the parent op_region (must already exist) */
|
|
|
|
arg = op->common.value.arg;
|
|
if (!region_node) {
|
|
status =
|
|
acpi_ns_lookup(walk_state->scope_info,
|
|
arg->common.value.name, ACPI_TYPE_REGION,
|
|
ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
|
|
walk_state, ®ion_node);
|
|
#ifdef ACPI_ASL_COMPILER
|
|
status = acpi_ds_create_external_region(status, arg,
|
|
arg->common.value.name,
|
|
walk_state,
|
|
®ion_node);
|
|
#endif
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
|
|
arg->common.value.name, status);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
}
|
|
|
|
/* Second arg is the Bank Register (Field) (must already exist) */
|
|
|
|
arg = arg->common.next;
|
|
status =
|
|
acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
|
|
ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
|
|
ACPI_NS_SEARCH_PARENT, walk_state,
|
|
&info.register_node);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
|
|
arg->common.value.string, status);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/*
|
|
* Third arg is the bank_value
|
|
* This arg is a term_arg, not a constant
|
|
* It will be evaluated later, by acpi_ds_eval_bank_field_operands
|
|
*/
|
|
arg = arg->common.next;
|
|
|
|
/* Fourth arg is the field flags */
|
|
|
|
arg = arg->common.next;
|
|
info.field_flags = (u8) arg->common.value.integer;
|
|
|
|
/* Each remaining arg is a Named Field */
|
|
|
|
info.field_type = ACPI_TYPE_LOCAL_BANK_FIELD;
|
|
info.region_node = region_node;
|
|
|
|
/*
|
|
* Use Info.data_register_node to store bank_field Op
|
|
* It's safe because data_register_node will never be used when create
|
|
* bank field \we store aml_start and aml_length in the bank_field Op for
|
|
* late evaluation. Used in acpi_ex_prep_field_value(Info)
|
|
*
|
|
* TBD: Or, should we add a field in struct acpi_create_field_info, like
|
|
* "void *ParentOp"?
|
|
*/
|
|
info.data_register_node = (struct acpi_namespace_node *)op;
|
|
|
|
status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ds_create_index_field
|
|
*
|
|
* PARAMETERS: op - Op containing the Field definition and args
|
|
* region_node - Object for the containing Operation Region
|
|
* ` walk_state - Current method state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create a new index field in the specified operation region
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ds_create_index_field(union acpi_parse_object *op,
|
|
struct acpi_namespace_node *region_node,
|
|
struct acpi_walk_state *walk_state)
|
|
{
|
|
acpi_status status;
|
|
union acpi_parse_object *arg;
|
|
struct acpi_create_field_info info;
|
|
|
|
ACPI_FUNCTION_TRACE_PTR(ds_create_index_field, op);
|
|
|
|
/* First arg is the name of the Index register (must already exist) */
|
|
|
|
arg = op->common.value.arg;
|
|
status =
|
|
acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
|
|
ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
|
|
ACPI_NS_SEARCH_PARENT, walk_state,
|
|
&info.register_node);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
|
|
arg->common.value.string, status);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Second arg is the data register (must already exist) */
|
|
|
|
arg = arg->common.next;
|
|
status =
|
|
acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
|
|
ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
|
|
ACPI_NS_SEARCH_PARENT, walk_state,
|
|
&info.data_register_node);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR_NAMESPACE(walk_state->scope_info,
|
|
arg->common.value.string, status);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Next arg is the field flags */
|
|
|
|
arg = arg->common.next;
|
|
info.field_flags = (u8) arg->common.value.integer;
|
|
|
|
/* Each remaining arg is a Named Field */
|
|
|
|
info.field_type = ACPI_TYPE_LOCAL_INDEX_FIELD;
|
|
info.region_node = region_node;
|
|
|
|
status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
|
|
return_ACPI_STATUS(status);
|
|
}
|