952 lines
29 KiB
C
952 lines
29 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
|
|
/******************************************************************************
|
|
*
|
|
* Module Name: nsrepair2 - Repair for objects returned by specific
|
|
* predefined methods
|
|
*
|
|
* Copyright (C) 2000 - 2022, Intel Corp.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#include <acpi/acpi.h>
|
|
#include "accommon.h"
|
|
#include "acnamesp.h"
|
|
|
|
#define _COMPONENT ACPI_NAMESPACE
|
|
ACPI_MODULE_NAME("nsrepair2")
|
|
|
|
/*
|
|
* Information structure and handler for ACPI predefined names that can
|
|
* be repaired on a per-name basis.
|
|
*/
|
|
typedef
|
|
acpi_status (*acpi_repair_function) (struct acpi_evaluate_info * info,
|
|
union acpi_operand_object **
|
|
return_object_ptr);
|
|
|
|
typedef struct acpi_repair_info {
|
|
char name[ACPI_NAMESEG_SIZE];
|
|
acpi_repair_function repair_function;
|
|
|
|
} acpi_repair_info;
|
|
|
|
/* Local prototypes */
|
|
|
|
static const struct acpi_repair_info *acpi_ns_match_complex_repair(struct
|
|
acpi_namespace_node
|
|
*node);
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_ALR(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr);
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_CID(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr);
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_CST(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr);
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_FDE(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr);
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_HID(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr);
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_PRT(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr);
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_PSS(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr);
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_TSS(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr);
|
|
|
|
static acpi_status
|
|
acpi_ns_check_sorted_list(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object *return_object,
|
|
u32 start_index,
|
|
u32 expected_count,
|
|
u32 sort_index,
|
|
u8 sort_direction, char *sort_key_name);
|
|
|
|
/* Values for sort_direction above */
|
|
|
|
#define ACPI_SORT_ASCENDING 0
|
|
#define ACPI_SORT_DESCENDING 1
|
|
|
|
static void
|
|
acpi_ns_remove_element(union acpi_operand_object *obj_desc, u32 index);
|
|
|
|
static void
|
|
acpi_ns_sort_list(union acpi_operand_object **elements,
|
|
u32 count, u32 index, u8 sort_direction);
|
|
|
|
/*
|
|
* This table contains the names of the predefined methods for which we can
|
|
* perform more complex repairs.
|
|
*
|
|
* As necessary:
|
|
*
|
|
* _ALR: Sort the list ascending by ambient_illuminance
|
|
* _CID: Strings: uppercase all, remove any leading asterisk
|
|
* _CST: Sort the list ascending by C state type
|
|
* _FDE: Convert Buffer of BYTEs to a Buffer of DWORDs
|
|
* _GTM: Convert Buffer of BYTEs to a Buffer of DWORDs
|
|
* _HID: Strings: uppercase all, remove any leading asterisk
|
|
* _PRT: Fix reversed source_name and source_index
|
|
* _PSS: Sort the list descending by Power
|
|
* _TSS: Sort the list descending by Power
|
|
*
|
|
* Names that must be packages, but cannot be sorted:
|
|
*
|
|
* _BCL: Values are tied to the Package index where they appear, and cannot
|
|
* be moved or sorted. These index values are used for _BQC and _BCM.
|
|
* However, we can fix the case where a buffer is returned, by converting
|
|
* it to a Package of integers.
|
|
*/
|
|
static const struct acpi_repair_info acpi_ns_repairable_names[] = {
|
|
{"_ALR", acpi_ns_repair_ALR},
|
|
{"_CID", acpi_ns_repair_CID},
|
|
{"_CST", acpi_ns_repair_CST},
|
|
{"_FDE", acpi_ns_repair_FDE},
|
|
{"_GTM", acpi_ns_repair_FDE}, /* _GTM has same repair as _FDE */
|
|
{"_HID", acpi_ns_repair_HID},
|
|
{"_PRT", acpi_ns_repair_PRT},
|
|
{"_PSS", acpi_ns_repair_PSS},
|
|
{"_TSS", acpi_ns_repair_TSS},
|
|
{{0, 0, 0, 0}, NULL} /* Table terminator */
|
|
};
|
|
|
|
#define ACPI_FDE_FIELD_COUNT 5
|
|
#define ACPI_FDE_BYTE_BUFFER_SIZE 5
|
|
#define ACPI_FDE_DWORD_BUFFER_SIZE (ACPI_FDE_FIELD_COUNT * (u32) sizeof (u32))
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_complex_repairs
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* node - Namespace node for the method/object
|
|
* validate_status - Original status of earlier validation
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if repair was successful. If name is not
|
|
* matched, validate_status is returned.
|
|
*
|
|
* DESCRIPTION: Attempt to repair/convert a return object of a type that was
|
|
* not expected.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ns_complex_repairs(struct acpi_evaluate_info *info,
|
|
struct acpi_namespace_node *node,
|
|
acpi_status validate_status,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
const struct acpi_repair_info *predefined;
|
|
acpi_status status;
|
|
|
|
ACPI_FUNCTION_TRACE(ns_complex_repairs);
|
|
|
|
/* Check if this name is in the list of repairable names */
|
|
|
|
predefined = acpi_ns_match_complex_repair(node);
|
|
if (!predefined) {
|
|
return_ACPI_STATUS(validate_status);
|
|
}
|
|
|
|
status = predefined->repair_function(info, return_object_ptr);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_match_complex_repair
|
|
*
|
|
* PARAMETERS: node - Namespace node for the method/object
|
|
*
|
|
* RETURN: Pointer to entry in repair table. NULL indicates not found.
|
|
*
|
|
* DESCRIPTION: Check an object name against the repairable object list.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static const struct acpi_repair_info *acpi_ns_match_complex_repair(struct
|
|
acpi_namespace_node
|
|
*node)
|
|
{
|
|
const struct acpi_repair_info *this_name;
|
|
|
|
/* Search info table for a repairable predefined method/object name */
|
|
|
|
this_name = acpi_ns_repairable_names;
|
|
while (this_name->repair_function) {
|
|
if (ACPI_COMPARE_NAMESEG(node->name.ascii, this_name->name)) {
|
|
return (this_name);
|
|
}
|
|
|
|
this_name++;
|
|
}
|
|
|
|
return (NULL); /* Not found */
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_repair_ALR
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if object is OK or was repaired successfully
|
|
*
|
|
* DESCRIPTION: Repair for the _ALR object. If necessary, sort the object list
|
|
* ascending by the ambient illuminance values.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_ALR(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
union acpi_operand_object *return_object = *return_object_ptr;
|
|
acpi_status status;
|
|
|
|
status = acpi_ns_check_sorted_list(info, return_object, 0, 2, 1,
|
|
ACPI_SORT_ASCENDING,
|
|
"AmbientIlluminance");
|
|
|
|
return (status);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_repair_FDE
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if object is OK or was repaired successfully
|
|
*
|
|
* DESCRIPTION: Repair for the _FDE and _GTM objects. The expected return
|
|
* value is a Buffer of 5 DWORDs. This function repairs a common
|
|
* problem where the return value is a Buffer of BYTEs, not
|
|
* DWORDs.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_FDE(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
union acpi_operand_object *return_object = *return_object_ptr;
|
|
union acpi_operand_object *buffer_object;
|
|
u8 *byte_buffer;
|
|
u32 *dword_buffer;
|
|
u32 i;
|
|
|
|
ACPI_FUNCTION_NAME(ns_repair_FDE);
|
|
|
|
switch (return_object->common.type) {
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
/* This is the expected type. Length should be (at least) 5 DWORDs */
|
|
|
|
if (return_object->buffer.length >= ACPI_FDE_DWORD_BUFFER_SIZE) {
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* We can only repair if we have exactly 5 BYTEs */
|
|
|
|
if (return_object->buffer.length != ACPI_FDE_BYTE_BUFFER_SIZE) {
|
|
ACPI_WARN_PREDEFINED((AE_INFO,
|
|
info->full_pathname,
|
|
info->node_flags,
|
|
"Incorrect return buffer length %u, expected %u",
|
|
return_object->buffer.length,
|
|
ACPI_FDE_DWORD_BUFFER_SIZE));
|
|
|
|
return (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/* Create the new (larger) buffer object */
|
|
|
|
buffer_object =
|
|
acpi_ut_create_buffer_object(ACPI_FDE_DWORD_BUFFER_SIZE);
|
|
if (!buffer_object) {
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Expand each byte to a DWORD */
|
|
|
|
byte_buffer = return_object->buffer.pointer;
|
|
dword_buffer = ACPI_CAST_PTR(u32,
|
|
buffer_object->buffer.pointer);
|
|
|
|
for (i = 0; i < ACPI_FDE_FIELD_COUNT; i++) {
|
|
*dword_buffer = (u32) *byte_buffer;
|
|
dword_buffer++;
|
|
byte_buffer++;
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
|
|
"%s Expanded Byte Buffer to expected DWord Buffer\n",
|
|
info->full_pathname));
|
|
break;
|
|
|
|
default:
|
|
|
|
return (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/* Delete the original return object, return the new buffer object */
|
|
|
|
acpi_ut_remove_reference(return_object);
|
|
*return_object_ptr = buffer_object;
|
|
|
|
info->return_flags |= ACPI_OBJECT_REPAIRED;
|
|
return (AE_OK);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_repair_CID
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if object is OK or was repaired successfully
|
|
*
|
|
* DESCRIPTION: Repair for the _CID object. If a string, ensure that all
|
|
* letters are uppercase and that there is no leading asterisk.
|
|
* If a Package, ensure same for all string elements.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_CID(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
acpi_status status;
|
|
union acpi_operand_object *return_object = *return_object_ptr;
|
|
union acpi_operand_object **element_ptr;
|
|
union acpi_operand_object *original_element;
|
|
u16 original_ref_count;
|
|
u32 i;
|
|
|
|
ACPI_FUNCTION_TRACE(ns_repair_CID);
|
|
|
|
/* Check for _CID as a simple string */
|
|
|
|
if (return_object->common.type == ACPI_TYPE_STRING) {
|
|
status = acpi_ns_repair_HID(info, return_object_ptr);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Exit if not a Package */
|
|
|
|
if (return_object->common.type != ACPI_TYPE_PACKAGE) {
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/* Examine each element of the _CID package */
|
|
|
|
element_ptr = return_object->package.elements;
|
|
for (i = 0; i < return_object->package.count; i++) {
|
|
original_element = *element_ptr;
|
|
original_ref_count = original_element->common.reference_count;
|
|
|
|
status = acpi_ns_repair_HID(info, element_ptr);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
if (original_element != *element_ptr) {
|
|
|
|
/* Update reference count of new object */
|
|
|
|
(*element_ptr)->common.reference_count =
|
|
original_ref_count;
|
|
}
|
|
|
|
element_ptr++;
|
|
}
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_repair_CST
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if object is OK or was repaired successfully
|
|
*
|
|
* DESCRIPTION: Repair for the _CST object:
|
|
* 1. Sort the list ascending by C state type
|
|
* 2. Ensure type cannot be zero
|
|
* 3. A subpackage count of zero means _CST is meaningless
|
|
* 4. Count must match the number of C state subpackages
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_CST(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
union acpi_operand_object *return_object = *return_object_ptr;
|
|
union acpi_operand_object **outer_elements;
|
|
u32 outer_element_count;
|
|
union acpi_operand_object *obj_desc;
|
|
acpi_status status;
|
|
u8 removing;
|
|
u32 i;
|
|
|
|
ACPI_FUNCTION_NAME(ns_repair_CST);
|
|
|
|
/*
|
|
* Check if the C-state type values are proportional.
|
|
*/
|
|
outer_element_count = return_object->package.count - 1;
|
|
i = 0;
|
|
while (i < outer_element_count) {
|
|
outer_elements = &return_object->package.elements[i + 1];
|
|
removing = FALSE;
|
|
|
|
if ((*outer_elements)->package.count == 0) {
|
|
ACPI_WARN_PREDEFINED((AE_INFO,
|
|
info->full_pathname,
|
|
info->node_flags,
|
|
"SubPackage[%u] - removing entry due to zero count",
|
|
i));
|
|
removing = TRUE;
|
|
goto remove_element;
|
|
}
|
|
|
|
obj_desc = (*outer_elements)->package.elements[1]; /* Index1 = Type */
|
|
if ((u32)obj_desc->integer.value == 0) {
|
|
ACPI_WARN_PREDEFINED((AE_INFO,
|
|
info->full_pathname,
|
|
info->node_flags,
|
|
"SubPackage[%u] - removing entry due to invalid Type(0)",
|
|
i));
|
|
removing = TRUE;
|
|
}
|
|
|
|
remove_element:
|
|
if (removing) {
|
|
acpi_ns_remove_element(return_object, i + 1);
|
|
outer_element_count--;
|
|
} else {
|
|
i++;
|
|
}
|
|
}
|
|
|
|
/* Update top-level package count, Type "Integer" checked elsewhere */
|
|
|
|
obj_desc = return_object->package.elements[0];
|
|
obj_desc->integer.value = outer_element_count;
|
|
|
|
/*
|
|
* Entries (subpackages) in the _CST Package must be sorted by the
|
|
* C-state type, in ascending order.
|
|
*/
|
|
status = acpi_ns_check_sorted_list(info, return_object, 1, 4, 1,
|
|
ACPI_SORT_ASCENDING, "C-State Type");
|
|
if (ACPI_FAILURE(status)) {
|
|
return (status);
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_repair_HID
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if object is OK or was repaired successfully
|
|
*
|
|
* DESCRIPTION: Repair for the _HID object. If a string, ensure that all
|
|
* letters are uppercase and that there is no leading asterisk.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_HID(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
union acpi_operand_object *return_object = *return_object_ptr;
|
|
union acpi_operand_object *new_string;
|
|
char *source;
|
|
char *dest;
|
|
|
|
ACPI_FUNCTION_NAME(ns_repair_HID);
|
|
|
|
/* We only care about string _HID objects (not integers) */
|
|
|
|
if (return_object->common.type != ACPI_TYPE_STRING) {
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
if (return_object->string.length == 0) {
|
|
ACPI_WARN_PREDEFINED((AE_INFO,
|
|
info->full_pathname, info->node_flags,
|
|
"Invalid zero-length _HID or _CID string"));
|
|
|
|
/* Return AE_OK anyway, let driver handle it */
|
|
|
|
info->return_flags |= ACPI_OBJECT_REPAIRED;
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/* It is simplest to always create a new string object */
|
|
|
|
new_string = acpi_ut_create_string_object(return_object->string.length);
|
|
if (!new_string) {
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
|
}
|
|
|
|
/*
|
|
* Remove a leading asterisk if present. For some unknown reason, there
|
|
* are many machines in the field that contains IDs like this.
|
|
*
|
|
* Examples: "*PNP0C03", "*ACPI0003"
|
|
*/
|
|
source = return_object->string.pointer;
|
|
if (*source == '*') {
|
|
source++;
|
|
new_string->string.length--;
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
|
|
"%s: Removed invalid leading asterisk\n",
|
|
info->full_pathname));
|
|
}
|
|
|
|
/*
|
|
* Copy and uppercase the string. From the ACPI 5.0 specification:
|
|
*
|
|
* A valid PNP ID must be of the form "AAA####" where A is an uppercase
|
|
* letter and # is a hex digit. A valid ACPI ID must be of the form
|
|
* "NNNN####" where N is an uppercase letter or decimal digit, and
|
|
* # is a hex digit.
|
|
*/
|
|
for (dest = new_string->string.pointer; *source; dest++, source++) {
|
|
*dest = (char)toupper((int)*source);
|
|
}
|
|
|
|
acpi_ut_remove_reference(return_object);
|
|
*return_object_ptr = new_string;
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_repair_PRT
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if object is OK or was repaired successfully
|
|
*
|
|
* DESCRIPTION: Repair for the _PRT object. If necessary, fix reversed
|
|
* source_name and source_index field, a common BIOS bug.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_PRT(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
union acpi_operand_object *package_object = *return_object_ptr;
|
|
union acpi_operand_object **top_object_list;
|
|
union acpi_operand_object **sub_object_list;
|
|
union acpi_operand_object *obj_desc;
|
|
union acpi_operand_object *sub_package;
|
|
u32 element_count;
|
|
u32 index;
|
|
|
|
/* Each element in the _PRT package is a subpackage */
|
|
|
|
top_object_list = package_object->package.elements;
|
|
element_count = package_object->package.count;
|
|
|
|
/* Examine each subpackage */
|
|
|
|
for (index = 0; index < element_count; index++, top_object_list++) {
|
|
sub_package = *top_object_list;
|
|
sub_object_list = sub_package->package.elements;
|
|
|
|
/* Check for minimum required element count */
|
|
|
|
if (sub_package->package.count < 4) {
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* If the BIOS has erroneously reversed the _PRT source_name (index 2)
|
|
* and the source_index (index 3), fix it. _PRT is important enough to
|
|
* workaround this BIOS error. This also provides compatibility with
|
|
* other ACPI implementations.
|
|
*/
|
|
obj_desc = sub_object_list[3];
|
|
if (!obj_desc || (obj_desc->common.type != ACPI_TYPE_INTEGER)) {
|
|
sub_object_list[3] = sub_object_list[2];
|
|
sub_object_list[2] = obj_desc;
|
|
info->return_flags |= ACPI_OBJECT_REPAIRED;
|
|
|
|
ACPI_WARN_PREDEFINED((AE_INFO,
|
|
info->full_pathname,
|
|
info->node_flags,
|
|
"PRT[%X]: Fixed reversed SourceName and SourceIndex",
|
|
index));
|
|
}
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_repair_PSS
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if object is OK or was repaired successfully
|
|
*
|
|
* DESCRIPTION: Repair for the _PSS object. If necessary, sort the object list
|
|
* by the CPU frequencies. Check that the power dissipation values
|
|
* are all proportional to CPU frequency (i.e., sorting by
|
|
* frequency should be the same as sorting by power.)
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_PSS(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
union acpi_operand_object *return_object = *return_object_ptr;
|
|
union acpi_operand_object **outer_elements;
|
|
u32 outer_element_count;
|
|
union acpi_operand_object **elements;
|
|
union acpi_operand_object *obj_desc;
|
|
u32 previous_value;
|
|
acpi_status status;
|
|
u32 i;
|
|
|
|
/*
|
|
* Entries (subpackages) in the _PSS Package must be sorted by power
|
|
* dissipation, in descending order. If it appears that the list is
|
|
* incorrectly sorted, sort it. We sort by cpu_frequency, since this
|
|
* should be proportional to the power.
|
|
*/
|
|
status = acpi_ns_check_sorted_list(info, return_object, 0, 6, 0,
|
|
ACPI_SORT_DESCENDING,
|
|
"CpuFrequency");
|
|
if (ACPI_FAILURE(status)) {
|
|
return (status);
|
|
}
|
|
|
|
/*
|
|
* We now know the list is correctly sorted by CPU frequency. Check if
|
|
* the power dissipation values are proportional.
|
|
*/
|
|
previous_value = ACPI_UINT32_MAX;
|
|
outer_elements = return_object->package.elements;
|
|
outer_element_count = return_object->package.count;
|
|
|
|
for (i = 0; i < outer_element_count; i++) {
|
|
elements = (*outer_elements)->package.elements;
|
|
obj_desc = elements[1]; /* Index1 = power_dissipation */
|
|
|
|
if ((u32)obj_desc->integer.value > previous_value) {
|
|
ACPI_WARN_PREDEFINED((AE_INFO,
|
|
info->full_pathname,
|
|
info->node_flags,
|
|
"SubPackage[%u,%u] - suspicious power dissipation values",
|
|
i - 1, i));
|
|
}
|
|
|
|
previous_value = (u32) obj_desc->integer.value;
|
|
outer_elements++;
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_repair_TSS
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object_ptr - Pointer to the object returned from the
|
|
* evaluation of a method or object
|
|
*
|
|
* RETURN: Status. AE_OK if object is OK or was repaired successfully
|
|
*
|
|
* DESCRIPTION: Repair for the _TSS object. If necessary, sort the object list
|
|
* descending by the power dissipation values.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_repair_TSS(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object **return_object_ptr)
|
|
{
|
|
union acpi_operand_object *return_object = *return_object_ptr;
|
|
acpi_status status;
|
|
struct acpi_namespace_node *node;
|
|
|
|
/*
|
|
* We can only sort the _TSS return package if there is no _PSS in the
|
|
* same scope. This is because if _PSS is present, the ACPI specification
|
|
* dictates that the _TSS Power Dissipation field is to be ignored, and
|
|
* therefore some BIOSs leave garbage values in the _TSS Power field(s).
|
|
* In this case, it is best to just return the _TSS package as-is.
|
|
* (May, 2011)
|
|
*/
|
|
status = acpi_ns_get_node(info->node, "^_PSS",
|
|
ACPI_NS_NO_UPSEARCH, &node);
|
|
if (ACPI_SUCCESS(status)) {
|
|
return (AE_OK);
|
|
}
|
|
|
|
status = acpi_ns_check_sorted_list(info, return_object, 0, 5, 1,
|
|
ACPI_SORT_DESCENDING,
|
|
"PowerDissipation");
|
|
|
|
return (status);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_check_sorted_list
|
|
*
|
|
* PARAMETERS: info - Method execution information block
|
|
* return_object - Pointer to the top-level returned object
|
|
* start_index - Index of the first subpackage
|
|
* expected_count - Minimum length of each subpackage
|
|
* sort_index - Subpackage entry to sort on
|
|
* sort_direction - Ascending or descending
|
|
* sort_key_name - Name of the sort_index field
|
|
*
|
|
* RETURN: Status. AE_OK if the list is valid and is sorted correctly or
|
|
* has been repaired by sorting the list.
|
|
*
|
|
* DESCRIPTION: Check if the package list is valid and sorted correctly by the
|
|
* sort_index. If not, then sort the list.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_ns_check_sorted_list(struct acpi_evaluate_info *info,
|
|
union acpi_operand_object *return_object,
|
|
u32 start_index,
|
|
u32 expected_count,
|
|
u32 sort_index,
|
|
u8 sort_direction, char *sort_key_name)
|
|
{
|
|
u32 outer_element_count;
|
|
union acpi_operand_object **outer_elements;
|
|
union acpi_operand_object **elements;
|
|
union acpi_operand_object *obj_desc;
|
|
u32 i;
|
|
u32 previous_value;
|
|
|
|
ACPI_FUNCTION_NAME(ns_check_sorted_list);
|
|
|
|
/* The top-level object must be a package */
|
|
|
|
if (return_object->common.type != ACPI_TYPE_PACKAGE) {
|
|
return (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/*
|
|
* NOTE: assumes list of subpackages contains no NULL elements.
|
|
* Any NULL elements should have been removed by earlier call
|
|
* to acpi_ns_remove_null_elements.
|
|
*/
|
|
outer_element_count = return_object->package.count;
|
|
if (!outer_element_count || start_index >= outer_element_count) {
|
|
return (AE_AML_PACKAGE_LIMIT);
|
|
}
|
|
|
|
outer_elements = &return_object->package.elements[start_index];
|
|
outer_element_count -= start_index;
|
|
|
|
previous_value = 0;
|
|
if (sort_direction == ACPI_SORT_DESCENDING) {
|
|
previous_value = ACPI_UINT32_MAX;
|
|
}
|
|
|
|
/* Examine each subpackage */
|
|
|
|
for (i = 0; i < outer_element_count; i++) {
|
|
|
|
/* Each element of the top-level package must also be a package */
|
|
|
|
if ((*outer_elements)->common.type != ACPI_TYPE_PACKAGE) {
|
|
return (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/* Each subpackage must have the minimum length */
|
|
|
|
if ((*outer_elements)->package.count < expected_count) {
|
|
return (AE_AML_PACKAGE_LIMIT);
|
|
}
|
|
|
|
elements = (*outer_elements)->package.elements;
|
|
obj_desc = elements[sort_index];
|
|
|
|
if (obj_desc->common.type != ACPI_TYPE_INTEGER) {
|
|
return (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/*
|
|
* The list must be sorted in the specified order. If we detect a
|
|
* discrepancy, sort the entire list.
|
|
*/
|
|
if (((sort_direction == ACPI_SORT_ASCENDING) &&
|
|
(obj_desc->integer.value < previous_value)) ||
|
|
((sort_direction == ACPI_SORT_DESCENDING) &&
|
|
(obj_desc->integer.value > previous_value))) {
|
|
acpi_ns_sort_list(&return_object->package.
|
|
elements[start_index],
|
|
outer_element_count, sort_index,
|
|
sort_direction);
|
|
|
|
info->return_flags |= ACPI_OBJECT_REPAIRED;
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
|
|
"%s: Repaired unsorted list - now sorted by %s\n",
|
|
info->full_pathname, sort_key_name));
|
|
return (AE_OK);
|
|
}
|
|
|
|
previous_value = (u32) obj_desc->integer.value;
|
|
outer_elements++;
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_sort_list
|
|
*
|
|
* PARAMETERS: elements - Package object element list
|
|
* count - Element count for above
|
|
* index - Sort by which package element
|
|
* sort_direction - Ascending or Descending sort
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Sort the objects that are in a package element list.
|
|
*
|
|
* NOTE: Assumes that all NULL elements have been removed from the package,
|
|
* and that all elements have been verified to be of type Integer.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static void
|
|
acpi_ns_sort_list(union acpi_operand_object **elements,
|
|
u32 count, u32 index, u8 sort_direction)
|
|
{
|
|
union acpi_operand_object *obj_desc1;
|
|
union acpi_operand_object *obj_desc2;
|
|
union acpi_operand_object *temp_obj;
|
|
u32 i;
|
|
u32 j;
|
|
|
|
/* Simple bubble sort */
|
|
|
|
for (i = 1; i < count; i++) {
|
|
for (j = (count - 1); j >= i; j--) {
|
|
obj_desc1 = elements[j - 1]->package.elements[index];
|
|
obj_desc2 = elements[j]->package.elements[index];
|
|
|
|
if (((sort_direction == ACPI_SORT_ASCENDING) &&
|
|
(obj_desc1->integer.value >
|
|
obj_desc2->integer.value))
|
|
|| ((sort_direction == ACPI_SORT_DESCENDING)
|
|
&& (obj_desc1->integer.value <
|
|
obj_desc2->integer.value))) {
|
|
temp_obj = elements[j - 1];
|
|
elements[j - 1] = elements[j];
|
|
elements[j] = temp_obj;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ns_remove_element
|
|
*
|
|
* PARAMETERS: obj_desc - Package object element list
|
|
* index - Index of element to remove
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Remove the requested element of a package and delete it.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static void
|
|
acpi_ns_remove_element(union acpi_operand_object *obj_desc, u32 index)
|
|
{
|
|
union acpi_operand_object **source;
|
|
union acpi_operand_object **dest;
|
|
u32 count;
|
|
u32 new_count;
|
|
u32 i;
|
|
|
|
ACPI_FUNCTION_NAME(ns_remove_element);
|
|
|
|
count = obj_desc->package.count;
|
|
new_count = count - 1;
|
|
|
|
source = obj_desc->package.elements;
|
|
dest = source;
|
|
|
|
/* Examine all elements of the package object, remove matched index */
|
|
|
|
for (i = 0; i < count; i++) {
|
|
if (i == index) {
|
|
acpi_ut_remove_reference(*source); /* Remove one ref for being in pkg */
|
|
acpi_ut_remove_reference(*source);
|
|
} else {
|
|
*dest = *source;
|
|
dest++;
|
|
}
|
|
|
|
source++;
|
|
}
|
|
|
|
/* NULL terminate list and update the package count */
|
|
|
|
*dest = NULL;
|
|
obj_desc->package.count = new_count;
|
|
}
|